JP2020089198A - Wiring equipment and control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the ease of operation confirmation regarding the performance of temperature detection while suppressing deterioration of quality. SOLUTION: A wiring instrument 1 includes an instrument main body unit 4, a temperature detection unit 5, and a control unit 7. The temperature detection unit 5 detects the temperature corresponding to the power supply path L1 in the instrument main body unit 4. The control unit 7 makes a determination based on the temperature detected by the temperature detection unit 5, and depending on the result of the determination, shuts off the power supply path L1 and performs at least one of notifications regarding the temperature. The control unit 7 has, as an operation mode, a first mode in which the determination is performed based on the first algorithm, and a second mode in which the determination is performed based on a second algorithm different from the first algorithm. The control unit 7 switches from the first mode to the second mode according to a predetermined operation. [Selection diagram] Fig. 1

Description

The present disclosure generally relates to a wiring instrument and a control method, and more particularly, to a wiring instrument that detects a temperature in an instrument body and a method for controlling the wiring instrument.

Patent Document 1 discloses a first connecting portion to which an electric wire from an external power source is electrically connected, and a second connecting portion to which a plug provided on an electric wire from an electric device is detachably connected. The wiring device provided is described. This wiring device includes, for example, a temperature measuring unit attached to one or more places of the first connecting portion and the second connecting portion, and a disconnecting portion electrically disconnecting between the first connecting portion and the second connecting portion. , Are provided.

When the wiring device described in Patent Document 1 determines that there is an abnormality based on the temperature detected by the temperature measuring unit, the disconnecting unit turns off the contact. Therefore, if the Joule heat generated at the contact part between the first connection part and the electric wire increases due to the bad connection during construction or the effect of vibration applied during use, the measured temperature of the temperature measurement part rises, and The contact can be turned off to cut off the power supply to the electric device.

JP, 2016-58332, A

By the way, with respect to a wiring device having a function of detecting the temperature inside the device main body such as the wiring device of Patent Document 1, the temperature measuring unit (temperature detecting unit) is normally operated, for example, before shipment after manufacturing. There is a case to check whether it works or not. However, if you try to reproduce a situation that is close to an abnormal temperature rise that can actually occur in a wiring device to increase the reliability of operation confirmation, the quality of the wiring device may deteriorate before the user uses it. There is.

The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a wiring device and a control method capable of improving the ease of operation confirmation regarding the performance of temperature detection while suppressing deterioration of quality. ..

A wiring instrument according to an aspect of the present disclosure includes an instrument body section, a temperature detection section, and a control section. The temperature detection unit detects a temperature corresponding to a power feeding path in the instrument body. The control unit makes a determination based on the temperature detected by the temperature detection unit, and performs at least one of shutting off the power supply path and notifying the temperature according to the result of the determination. The control unit has, as operation modes, a first mode in which the determination is performed based on a first algorithm, and a second mode in which the determination is performed based on a second algorithm different from the first algorithm. The control unit switches from the first mode to the second mode according to a predetermined operation.

A control method according to an aspect of the present disclosure is a method for controlling wiring equipment. The control method includes a detection step, a determination step, an execution step, and a switching step. In the detecting step, the temperature corresponding to the power supply path of the electric power in the instrument body of the wiring instrument is detected. In the determining step, the determination based on the temperature detected in the detecting step is performed. In the execution step, at least one of shutting off the power supply path and notifying the temperature is performed according to the result of the determination. The determination step has, as operation modes, a first mode in which the determination is performed based on a first algorithm and a second mode in which the determination is performed based on a second algorithm different from the first algorithm. In the switching step, the first mode is switched to the second mode according to a predetermined operation.

According to the present disclosure, there is an advantage that it is possible to improve the easiness of operation confirmation regarding the temperature detection performance while suppressing the deterioration of quality.

FIG. 1 is a block diagram showing a configuration of a wiring device according to an embodiment of the present disclosure. FIG. 2A is an external perspective view showing an example of use of the above wiring device and when the opening/closing part is in a conducting state. FIG. 2B is an external perspective view showing a usage example of the above wiring device and when the opening/closing part is in a blocking state. FIG. 3 is an exploded perspective view of the above wiring device. FIG. 4A is a front view of the above wiring device with an outer cover and an inner cover removed. FIG. 4B is a rear view of the same wiring apparatus with the outer cover and the inner cover removed. FIG. 5A is a schematic diagram corresponding to a cross section taken along line X1-X1 of FIG. 4A showing a configuration of a main part of the same wiring device. FIG. 5B is a schematic diagram corresponding to a cross section taken along line X2-X2 of FIG. 4B, showing a configuration of a main part of the same wiring device. FIG. 6: is a figure for demonstrating the 1st temperature threshold-the 3rd temperature threshold in the wiring tool same as the above. FIG. 7A is a graph for explaining the second mode in the above wiring device. FIG. 7B is a schematic view of a heat source that supplies heat to the wiring device of the above. FIG. 8: is a graph for demonstrating the 2nd mode in the modification 1 of the wiring appliance same as the above. FIG. 9A and FIG. 9B are graphs for explaining the second mode in the modified example 2 of the wiring device.

(1) Overview Each drawing described in the following embodiments is a schematic drawing, and the size and thickness ratios of each constituent element in each drawing necessarily reflect the actual dimensional ratio. Not necessarily.

As shown in FIG. 1, the wiring device 1 according to the present embodiment includes a device body part 4, a temperature detection part 5, and a control part 7. The temperature detection unit 5 detects the temperature corresponding to the power feeding path L1 in the instrument body 4.

Here, as an example, it is assumed that the wiring device 1 is an outlet (see FIGS. 1 to 5B). The wiring device 1 is an outlet to which a plug 91 (see FIG. 5A) of the load device is connected to supply power to the load device. However, the wiring device 1 referred to in the present disclosure may be, for example, a table tap, a hook ceiling, a switch device, a relay device, in addition to an outlet, as long as it can serve as a port for extracting electric power from a power source such as a commercial power source. , And a breaker may be used. In short, the power supply path L1 may be, for example, a power supply path in a table tap.

When the wiring device 1 is an outlet, the “power supply path L1” connects the terminal member 2 to which the core wire 921 (see FIG. 5B) of the power supply line 92 is connected, and the blade 911 (see FIG. 5A) of the plug 91. And a connecting member 3 (blade receiver) to be connected, which is an electric path from the terminal member 2 to the connecting member 3. In the case of a breaker, for example, the power supply path L1 is an electric path from the first terminal to the second terminal including a first terminal to which the first electric wire is connected and a second terminal to which the second electric wire is connected.

Further, the “temperature corresponding to the power supply path L1” may be, for example, the temperature of the terminal member 2, the temperature of the connecting member 3, or the temperature of a conductor portion (for example, the lead plate 30) connecting the terminal member 2 to the connecting member 3. Good. Further, the "temperature corresponding to the power feeding path L1" may be the "ambient temperature" of the terminal member 2, the connecting member 3, the conductor portion, etc., and a portion (air layer that receives heat predominantly from the power feeding path L1 due to heat conduction). The temperature of the thermally bonded site) may also be included. For example, it may be the temperature of the space between the terminal member 2 and the instrument body 4, or the temperature of the inner wall surface of the instrument body 4 around the terminal member 2. Hereinafter, the location where the temperature is detected may be referred to as a “detection point”.

In the following, as an example, the wiring device 1 includes a plurality of temperature detection units 5, that is, a pair of first temperature detection units 51 that detect the temperature corresponding to the terminal member 2 and a pair that detects the temperature corresponding to the connection member 3. It is assumed that the second temperature detector 52 of No. 2 is provided. However, the number of the temperature detection units 5 is not particularly limited and may be one. In FIG. 1, each of the first temperature detecting unit 51 and the second temperature detecting unit 52 is illustrated.

The control unit 7 makes a determination based on the temperature detected by the temperature detection unit 5, and performs at least one of shutting off the power supply path L1 and notifying the temperature according to the result of the determination. Below, the control part 7 shall perform both the interruption|blocking of the electric power feeding path L1 and the notification regarding temperature as an example.

Here, the control unit 7 has, as operation modes, a first mode in which the above determination is performed based on a first algorithm and a second mode in which the above determination is performed based on a second algorithm different from the first algorithm. The controller 7 switches from the first mode to the second mode according to a predetermined operation.

Here, as an example, the first mode corresponds to a normal operation mode that is assumed to be applied when the user actually uses the wiring device 1 at the installation site. On the other hand, the second mode is an operation for inspection that is assumed to be applied when the inspector inspects the wiring device 1 (confirms the operation of the temperature detection unit 5) at the time of shipping after manufacturing the wiring device 1. Corresponds to the mode. However, the second mode is not always applied to the inspection after shipping the wiring device 1 at the time of shipping. The second mode may be applied at the time of inspection at the installation site by a builder or a regular inspector (or a user).

With this configuration, the first mode is switched to the second mode in response to a predetermined operation, and the determination is performed based on the second algorithm different from the first algorithm in the first mode. Therefore, for example, as compared with the case where the operation confirmation is performed in the first mode, it is possible to improve the ease of the operation confirmation regarding the temperature detection performance while suppressing the deterioration of the quality of the wiring device 1.

(2) Details Next, the wiring device 1 (outlet) will be described in more detail with reference to FIGS. 1 to 7B.

(2.1) Overall Configuration As described above, the wiring device 1 (outlet) according to the present embodiment is an outlet to which the plug 91 (see FIG. 5A) of the load device is connected to supply power to the load device. The wiring device 1 is installed, for example, in a residential facility such as a detached house or a condominium, or in a non-residential facility such as an office, a store, a school or a nursing facility. The wiring device 1 is installed, for example, on a building surface 100 (see FIG. 2A) such as a wall surface, a ceiling surface, and a floor surface of a facility (building).

As shown in FIG. 1, the wiring device 1 includes, in addition to the device body 4 (housing), the plurality of temperature detection units 5 and the control unit 7 described above, an opening/closing unit M1 for cutting off the power supply path L1. , Further equipped. The wiring device 1 further includes a terminal member 2, a connecting member 3 (blade receiver), an operating member 81 (operating lever), a display unit 82, a buzzer 83, and a switch 84. Hereinafter, for convenience of description, the terminal member 2 and the connection member 3 (blade receiver) may be collectively referred to as a “conductor Z1”.

Further, here, the plurality of temperature detection units 5, the control unit 7, and the opening/closing unit M1 configure a detection system M10 (see FIG. 1). The detection system M10 will be described in detail later together with the conductor Z1 in the section “(2.2) Detection system”.

2A and 2B are perspective views showing a state in which the wiring device 1 is attached to the construction surface 100. In the present embodiment, the wiring device 1 is an embedded wiring device that is attached to a mounting frame of a large rectangular continuous wiring device that is standardized by the Japanese Industrial Standards. Specifically, the wiring device 1 is attached to the construction surface 100 via the attachment frame. Here, the mounting frame is fixed to the construction surface 100 via the embedded box or directly. That is, by fixing the attachment frame to the construction surface 100, the wiring device 1 is attached to the construction surface 100 via the attachment frame. The decorative plate 101 is attached to the mounting frame, and the wiring device 1 is exposed from the inside of the decorative plate 101 as shown in FIGS. 2A and 2B. Here, the attachment frame may be a separate body from the instrument body 4 of the wiring instrument 1 or may be integral with the instrument body 4. In the present embodiment, the case where the wiring device 1 is for indoor use, that is, the case where the construction surface 100 is the inner wall surface of the building (facility) is described, but the present invention is not limited to this example, and the wiring device 1 is for outdoor use. Good.

In the following, the direction vertical (orthogonal) to the horizontal plane in the state where the wiring device 1 is attached to the inner wall surface of the building which is the construction surface 100 is referred to as “up-down direction”, and the wiring device 1 is viewed from the front. The downward direction (vertical direction) will be described as "downward". In addition, a direction that is orthogonal to the vertical direction and that is parallel to the construction surface 100 will be referred to as a “left-right direction”, the right side when viewed from the front of the wiring device 1 will be referred to as “right side”, and the left side will be referred to as “left side”. Further, a direction orthogonal to both the up-down direction and the left-right direction, that is, a direction orthogonal to the erection surface 100 will be referred to as “front-rear direction”, and the back side (back side of the wall) of the erection surface 100 will be described as “rear”. However, these directions are not intended to limit the use direction of the wiring device 1. For example, when the wiring device 1 is attached to the floor surface instead of the wall surface, the “front-back direction” is a direction perpendicular to the horizontal plane, and the “vertical direction” and the “left-right direction” are directions parallel to the horizontal plane. Even when the wiring device 1 is mounted on a wall surface, the wiring device 1 is mounted on the wall surface in a direction in which the “vertical direction” is a direction parallel to the horizontal plane (that is, sideways), so that the “horizontal direction” is horizontal. Vertical direction.

In addition, in the present embodiment, as the wiring device 1, a two-port type outlet capable of simultaneously connecting two plugs 91 is illustrated. That is, the wiring device 1 has two connection ports 11 so as to correspond to the two plugs 91. Each of the two connection ports 11 is configured to be able to connect one plug 91, and is arranged side by side in the up-down direction (vertical direction) on the one surface 4A (front surface) of the instrument body 4. In other words, the instrument body 4 has the connection port 11 on one surface 4A thereof, which faces the connection member 3 and into which the plug 91 is inserted. Of the two connection ports 11, one (lower) connection port 11 is an outlet with a two-pole ground electrode for AC 100V, and the other (upper) connection port 11 is a ground electrode for AC 100V. It is a two-pole outlet.

In the present embodiment, the wiring device 1 includes a pair of terminal members 2 having different polarities so as to correspond to the two-pole plug 91. That is, one terminal member 2 of the pair of terminal members 2 is connected to the L pole (HOT) side power supply line 92, and the other terminal member 2 is connected to the N pole (COLD) side power supply line 92. It Similarly, the wiring device 1 includes a pair of connecting members 3 having different polarities for each connection port 11, and a total of two pairs (four) of connecting members 3. Here, the two connecting members 3 having the same polarity are connected by the lead plate 30 (see FIG. 3). Further, the connection member 3 and the terminal member 2 having the same polarity are electrically connected to each other via the opening/closing portion M1.

The wiring device 1 includes a device body 4, and internal parts such as the terminal member 2 and the connection member 3 which are housed or held in the device body 4. As shown in FIG. 3, the instrument body 4 has an outer body 41, an outer cover 42, an inner cover 43, an inner block 44, and a terminal block 45. The outer body 41, the outer cover 42, the inner cover 43, the inner block 44, and the terminal block 45 are combined to form the instrument body 4. The instrument body 4 is made of an electrically insulating synthetic resin.

The outer body 41 is formed in a box shape having an open front surface. The opening surface (front surface) of the outer body 41 has a rectangular shape whose vertical dimension is longer than its horizontal dimension. The inner block 44 is accommodated in the outer body 41 together with other internal parts (the terminal member 2, the opening/closing part M1 and the like) while holding the connection member 3. An inner cover 43 is attached to the front surface of the outer body 41. As a result, the internal parts including the connecting member 3 held by the inner block 44 are housed between the outer body 41 and the inner cover 43. The outer cover 42 is attached to the front surface of the inner cover 43. As a result, the connection member 3 is housed between the inner block 44 and the outer cover 42. Here, in the portion of the inner cover 43 corresponding to the inner block 44, an opening window 431 that penetrates in the front-rear direction is formed. Therefore, the front surface of the inner block 44 holding the connecting member 3 is covered with the outer cover 42, and when the outer cover 42 is removed, the front surface of the inner block 44 is exposed forward through the opening window 431. The terminal block 45 is accommodated in the outer body 41 together with other internal parts while holding the terminal member 2.

That is, the inner block 44 and the outer cover 42 form a holding member that holds the connection member 3. The terminal block 45 constitutes a holding member that holds the terminal member 2. In other words, the wiring device 1 further includes a holding member that holds at least one of the terminal member 2 and the connection member 3.

The outer cover 42 is further configured to be divided into a plurality of members (for example, three members of the first portion 42A, the second portion 42B, and the earth lid 113), but even if it is integrated (one member). Good. Here, the first portion 42A of the outer cover 42 that covers the inner block 44 and the inner block 44 are made of urea resin, for example. The second portion 42B is a substantially U-shaped portion that is formed so as to surround the first portion 42A and the ground lid 113.

The above-described two connection ports 11 are formed in the first portion 42A of the outer cover 42 that covers the inner block 44. One (upper) connection port 11 of the two connection ports 11 has a pair of insertion holes 111 into which the pair of blades 911 (see FIG. 5A) of the plug 91 are inserted. The other (lower) connection port 11 of the two connection ports 11 has, in addition to a pair of insertion holes 111, a ground insertion hole 112 into which a ground pin of a plug with a ground electrode is inserted, and below the ground insertion hole 112. A lid 113 is provided. Inside the instrument body 4, the connecting member 3 is arranged at a position corresponding to each insertion hole 111, the first grounding member 114 is arranged at a position corresponding to the grounding insertion hole 112, and corresponds to the grounding lid 113. The second ground member 115 is arranged at the position. The first ground member 114 is a spring member to which the ground pin of the plug with the ground electrode is connected. The second ground member 115 is a screw type terminal to which the ground wire of the electric device is connected. The ground wire can be attached to and detached from the second ground member 115 with the ground lid 113 opened.

Further, in the space between the outer body 41 and the inner cover 43, to the left of the inner block 44, the opening/closing portion M1 and the substrate 85 are housed. The substrate 85 is arranged above the opening/closing portion M1. A first indicator light 821 and a second indicator light 822 that form the display unit 82, and a switch 84 are mounted on the board 85. As an example, the first indicator light 821 and the second indicator light 822 are LEDs (Light Emitting Diodes) having different emission colors, and the switch 84 is a push button switch. Thus, the opening/closing part M1, the display part 82, and the switch 84 are housed in the instrument body part 4 (the outer body 41 and the inner cover 43). However, the inner cover 43 includes a light transmitting portion 432 and a cantilever so that the light of the display portion 82 can be visually recognized from the front of the instrument body portion 4 and the switch 84 can be pressed from the front of the instrument body portion 4. 433 is formed. That is, the light of the display unit 82 can be viewed from the front of the instrument body 4 through the light transmitting unit 432, and the switch 84 can be pushed from the front of the instrument body 4 via the cantilever 433. 2A and 2B, for convenience, the display unit 82 and the display unit 82 on the one surface 4A (front surface) of the instrument body 4 (first display light 821 and second display light 822) and the switch 84 are provided at respective positions corresponding to the switch 84. The reference numeral of the switch 84 is attached.

(2.2) Detection system (2.2.1) Overall configuration Hereinafter, regarding the detection system M10 (the temperature detection unit 5, the control unit 7, and the opening/closing unit M1), and the conductor Z1 (the terminal member 2 and the connection member 3) explain in detail.

First, the conductor Z1 (connecting member 3 and terminal member 2) will be described with reference to FIGS. 4A to 5B.

Two pairs (four) of the connecting members 3 are held by the inner block 44, as shown in FIGS. 4A and 5A. Here, the two pairs of connecting members 3 are arranged at positions corresponding to the two pairs of insertion holes 111 formed in the outer cover 42, specifically, at the four corners of the inner block 44 in a front view. Further, as described above, the two connecting members 3 having the same polarity, that is, the two connecting members 3 arranged in the vertical direction are connected by the lead plate 30. Each of the pair of lead plates 30 having different polarities is formed in a strip plate shape that is longer in the vertical direction than in the horizontal direction. Here, the two connecting members 3 and the lead plate 30 having the same polarity are integrally formed from one metal plate. In FIGS. 4A and 5A, the metal plates forming the connecting member 3 and the lead plate 30 are shaded (dot hatching).

Each connecting member 3 is a blade receiving member into which the plug blade 911 of the plug 91 is inserted when the plug 91 is connected. Each connecting member 3 is made of a metal having conductivity and elasticity, such as copper or a copper alloy. Each connecting member 3 has a pair of blade receiving pieces 31 facing each other in the left-right direction. Each connecting member 3 is electrically connected to the blades 911 and mechanically holds the blades 911 with the blades 911 sandwiched between the pair of blade receiving pieces 31.

The pair of terminal members 2 are held by the terminal block 45, as shown in FIGS. 4B and 5B. Here, the pair of terminal members 2 are arranged at positions respectively corresponding to the pair of terminal holes 121 formed on the rear surface of the terminal block 45. Each terminal member 2 is a plug-in type quick connection terminal to which the feeder 92 is connected by inserting the core wire 921 of the feeder 92. Specifically, each terminal member 2 has a terminal plate 21 and a lock spring 22, as shown in FIG. 5B. The terminal board 21 is made of a conductive metal, such as copper or a copper alloy. The lock spring 22 is made of an elastic metal such as stainless steel. Each terminal member 2 is exposed from the corresponding terminal hole 121 in the pair of terminal holes 121 opened on the surface (rear surface 4B) opposite to the one surface 4A (front surface) of the instrument body 4. In each terminal member 2, when the power supply line 92 is inserted into the corresponding terminal hole 121, the power supply line 92 is sandwiched between the terminal plate 21 and the locking spring 22 with the core wire 921 of the power supply line 92 interposed therebetween. Is electrically connected to and mechanically holds the power supply line 92.

Further, the terminal block 45 holds a ground terminal 116 (see FIG. 4B) for connecting a ground wire. The ground terminal 116 is a plug-in type quick connection terminal similar to the terminal member 2, and is arranged at a position corresponding to the ground terminal hole 122 formed in the rear surface of the terminal block 45. The grounding terminal 116 is electrically connected to the first grounding member 114 and the second grounding member 115 in the instrument body 4.

Next, the plurality of temperature detection units 5 (the first temperature detection unit 51 and the second temperature detection unit 52) of the detection system M10 will be described with reference to FIGS. 1, 5A, and 5B.

The plurality of temperature detection units 5 are housed in the instrument body unit 4 and detect the temperatures corresponding to the electric power feeding path L1 in the instrument body unit 4. As described above, the power feeding path L1 is an electric path including the terminal member 2 and the connecting member 3 from the terminal member 2 to the connecting member 3.

Here, the 1st temperature detection part 51 detects the temperature corresponding to the terminal member 2 to which the electric power feeding line 92 is connected in the electric power feeding path L1, as shown in FIG. The second temperature detector 52 detects the temperature corresponding to the connection member 3 (blade receiver) to which the plug 91 that receives the supply of electric power is connected in the power supply path L1. The first temperature detection unit 51 includes one or a plurality of temperature sensors (sensor elements 510), and the second temperature detection unit 52 includes one or a plurality of temperature sensors (sensor elements 520). The sensor element 510 is thermally coupled to the terminal member 2. The sensor element 520 is thermally coupled to the connecting member 3. The sensor element 510 and the sensor element 520 are realized by, for example, a thermistor, a thermocouple, a thermopile, or the like.

The sensor element 510 of the first temperature detection unit 51 is mounted on the sensor substrate 511, as shown in FIG. 5B. It is realized by interposing a heat transfer member 512 (heat transfer sheet) having heat transfer properties and electrical insulation properties between the terminal plate 21 of the terminal member 2 and the first temperature detection unit 51. In other words, the sensor element 510 of the first temperature detecting section 51 is in contact with the terminal member 2 via the heat transfer member 512 in the instrument body section 4. Here, a pair of the first temperature detectors 51 is provided so as to correspond to the pair of terminal members 2 having different polarities. A pair of heat transfer members 512 is also provided. Each first temperature detection unit 51 detects the temperature of the terminal member 2 via the corresponding heat transfer member 512.

In addition, in the present embodiment, the sensor element 510, the heat transfer member 512, and the terminal member 2 of the first temperature detection unit 51 have the first temperature detection unit 51 when the sensor element 510 is viewed from the reception surface U1 (described later). The heat transfer member 512 and the terminal member 2 are arranged in this order. Specifically, on the dashed-dotted line X3 in FIG. 5B, at least a part of the heat transfer member 512 is arranged on the back surface side of the sensor element 510, and further on the back surface side of the at least a part position of the heat transfer member 512. At least a part of the terminal member 2 is arranged.

As shown in FIG. 5A, the sensor element 520 of the second temperature detection unit 52 is in a state of being thermally coupled to the lead plate 30 on the back side of the lead plate 30 connecting the two connecting members 3 to each other. It is arranged. The thermal coupling between the sensor element 520 of the second temperature detector 52 and the lead plate 30 is realized by directly fixing the sensor element 520 to the lead plate 30 with a clip or the like. Here, a pair of the second temperature detectors 52 is provided so as to correspond to the pair of lead plates 30 having different polarities. Each second temperature detector 52 detects the temperature of the connecting member 3 via the corresponding lead plate 30.

Each temperature detector 5 outputs a detection signal corresponding to the detected temperature to the controller 7. The detection signal may be a signal (electrical signal) that conveys information according to the temperature according to a specific code, and is, for example, a signal in which an electrical quantity such as a resistance value, a voltage value, or a current value changes according to the temperature. .. Each temperature detection unit 5 may further include a processing circuit that processes the output of the corresponding sensor element (510 or 520) and outputs a detection signal.

The temperature detection point is not limited to the above-mentioned location. For example, regarding the temperature detected by the second temperature detection unit 52, the detection point is the lead plate 30 as described above. However, the detection point may be a position close to a portion of the holding member (inner block 44 and outer cover 42) that holds the connection member 3 and the lead plate 30 in contact with the connection member 3 and the lead plate 30. A gap (space) may be provided between the detection point and the sensor element 520. In short, the number of detection points may be one or more, and the position thereof is not limited as long as it is the temperature corresponding to the power feeding path L1.

(2.2.2) Control Unit Next, the control unit 7 of the detection system M10 will be described.

The control section 7 is housed in the instrument body section 4, and is mounted on, for example, a control board arranged behind the inner block 44. Similarly, the buzzer 83 is also housed in the instrument body 4 and is mounted on, for example, a control board. The control unit 7 is electrically connected to the opening/closing unit M1, the display unit 82, the buzzer 83, the switch 84, and the temperature detection unit 5. The control unit 7 controls at least the opening/closing unit M1, the display unit 82, and the buzzer 83.

The control unit 7 has, for example, a computer system having a processor and a memory. The computer system functions as the control unit 7 by the processor executing the program stored in the memory. The program executed by the processor is previously recorded in the memory of the computer system here, but may be provided by being recorded in a recording medium such as a memory card or through a telecommunication line such as the Internet. ..

The control unit 7 is configured to make a determination based on the temperature detected by the temperature detection unit 5 (hereinafter, referred to as temperature determination). The control unit 7 is configured to perform at least one of interruption of the power supply path L1 (hereinafter, simply referred to as interruption) and notification of temperature (hereinafter simply referred to as notification) according to the result of the temperature determination. There is. Here, as an example, the control unit 7 performs both blocking and notification when an abnormal temperature rise is detected. Hereinafter, a specific configuration of the control unit 7 will be described.

The control unit 7 has, as operation modes, a first mode in which temperature determination is performed based on a first algorithm, and a second mode in which temperature determination is performed based on a second algorithm different from the first algorithm. There is. Then, the control unit 7 switches from the first mode to the second mode in response to, for example, a predetermined operation (for example, long-pressing operation) on the switch 84. Further, the control unit 7 switches the second mode to the first mode when a predetermined time TM1 (see FIG. 7A) elapses after switching the operation mode from the first mode to the second mode. As described above, as an example, the first mode corresponds to the normal operation mode. On the other hand, the second mode corresponds to the operation mode for inspection.

As shown in FIG. 1, the control unit 7 has a notification unit M2, a first determination unit 73, and a second determination unit 74. In other words, the control unit 7 has a function as the notification unit M2, a function as the first determination unit 73, and a function as the second determination unit 74. The first determination unit 73 is configured to perform determination processing based on the first algorithm in the first mode. The second determination unit 74 is configured to perform determination processing based on the second algorithm in the second mode. The first determination unit 73 and the second determination unit 74 may be configured as one determination unit.

When the wiring device 1 indicates that it is in a specific state, the notification unit M2 notifies that fact. The "specific state" here is different when the control unit 7 is operating in the first mode and when it is operating in the second mode. When the control unit 7 is operating in the first mode, the specific state is a state in which an abnormal temperature rise is occurring. When the control unit 7 is operating in the second mode, the specific state is a state in which the operation of the wiring device 1 (in particular, the temperature detection unit 5) is normal.

As shown in FIG. 1, the notification unit M2 includes a notification unit 71 and a state presentation unit 72. When the control unit 7 detects that the wiring device 1 is in a specific state based on the temperatures detected by the plurality of temperature detection units 5, the control unit 7 notifies the fact through the notification unit M2.

The control unit 7 is configured to acquire the information (data) about the temperature detected from each temperature detection unit 5 in a common predetermined sampling cycle in both the first mode and the second mode. The predetermined sampling period is, for example, once/second. However, the sampling cycle may be different between the first mode and the second mode.

(2.2.3) First Mode Hereinafter, description will be made focusing on the first mode corresponding to the normal operation mode. The first algorithm includes a determination that compares the temperature detected by each temperature detection unit 5 with the first temperature threshold Tth1 (see FIG. 6). The first temperature threshold Tth1 is 90° C., for example. In the first mode, the first determination unit 73 determines whether or not the temperatures detected by the plurality of temperature detection units 5 exceed the first temperature threshold value Tth1. If the first determination unit 73 determines that any one of the plurality of temperatures detected by the plurality of temperature detection units 5 exceeds the first temperature threshold value Tth1, an abnormal temperature rise has occurred, that is, It is determined that the wiring device 1 is in an abnormal state. The first determination unit 73 may determine that the wiring device 1 is in an abnormal state when the instantaneous value of the temperature of the temperature detection unit 5 exceeds the first temperature threshold value Tth1. Alternatively, the first determination unit 73 may obtain a moving average value of temperature and determine that the wiring device 1 is in an abnormal state when the moving average value exceeds the first temperature threshold value Tth1.

When determining that the wiring device 1 is in an abnormal state, the control unit 7 causes the opening/closing unit M1 to cut off the power supply path L1 between the terminal member 2 and the connection member 3. In other words, the control unit 7 connects the opening/closing unit M1 to the power supply line L1 when the first condition “It is determined that an abnormal temperature rise has occurred in the instrument body unit 4 in the first mode” is satisfied. Perform a cutoff. The control unit 7 outputs a drive signal to the opening/closing unit M1 and controls the opening/closing unit M1 to switch from the conductive state to the cutoff state. In addition, the notification unit 71 of the notification unit M2 notifies the determination result (abnormal state). That is, the notification unit 71 notifies the user through the buzzer 83 and the display unit 82 that an abnormal temperature rise has been detected.

In the present embodiment, as an example, the notification by the notification unit 71 is realized by the output of an abnormal warning sound from the buzzer 83 and the display of “abnormal” on the display unit 82. That is, the control unit 7 realizes the notification by the notification unit 71 by controlling the buzzer 83 and the display unit 82. The state presentation unit 72 of the notification unit M2 presents whether the opening/closing unit M1 is in the conducting state or the blocking state. In the present embodiment, as an example, the presentation by the state presentation unit 72 is realized by the output of the abnormal warning sound from the buzzer 83 and the “abnormality” display on the display unit 82. That is, the control unit 7 realizes the presentation by the state presentation unit 72 by controlling the buzzer 83 and the display unit 82.

The switch 84 is operated when stopping the sound output of the buzzer 83. That is, when the switch 84 is pressed while the buzzer 83 is outputting the abnormal warning sound, the control unit 7 controls the buzzer 83 so as to stop the buzzer 83. The switch 84 is also used as a test switch, and is also used when the opening/closing part M1 is forcibly switched from the conductive state to the cutoff state.

The opening/closing part M1 is electrically connected between the terminal member 2 and the connecting member 3. The opening/closing unit M1 is a device that switches between two states, a conductive state and a cutoff state. That is, if the opening/closing part M1 is in the conductive state, the terminal member 2 and the connecting member 3 are electrically connected via the opening/closing part M1, and if the opening/closing part M1 is in the blocking state, the terminal member 2 and the connecting member 3 are connected. During that time, the opening/closing portion M1 is electrically cut off (insulated). That is, when the opening/closing part M1 is switched to the cutoff state, the electric path between the terminal member 2 and the connection member 3 is cut off. The wiring device 1 of the present embodiment includes a pair of terminal members 2 having polarities different from each other, and the opening/closing portion M1 is electrically connected to both of the pair of terminal members 2. Therefore, if the opening/closing part M1 is in the cutoff state, the two pairs (4 pieces) of the connecting members 3 are all electrically disconnected from the terminal member 2.

Specifically, the opening/closing part M1 includes a pair of contact devices having mutually different polarities and an electromagnetic release device. Each of the pair of contact devices has a fixed contact and a movable contact. The movable contact moves between a closed position in contact with the fixed contact and an open position away from the fixed contact. The terminal member 2 is electrically connected to the fixed contact, and the connection member 3 is electrically connected to the movable contact. More specifically, the movable contact is provided on the movable contact, and the movable contact and the connecting member 3 are electrically connected by connecting the movable contact to the lead plate 30 by a braided wire.

In the steady state, the opening/closing section M1 having such a configuration is in a conducting state in which the terminal member 2 and the connecting member 3 are electrically connected by the movable contact being located at the closed position. On the other hand, when the opening/closing part M1 receives the drive signal from the control part 7, the electromagnetic release device is actuated to drive the movable contactor to move the movable contact to the open position, whereby the terminal member 2 and the connecting member 3 are moved. It switches to the cutoff state that electrically cuts between and. In this way, the opening/closing section M1 is switched from the conduction state to the cutoff state by the drive signal from the control unit 7.

The operating member 81 is mechanically coupled to the opening/closing portion M1. The operation member 81 is a lever-type handle that can rotate about a rotation axis. Here, a first operation hole 434 and a second operation hole 421 are formed in the inner cover 43 and the outer cover 42, respectively, so that the operation member 81 can be operated from the front of the instrument body 4. That is, the operation member 81 is exposed to the front of the instrument body 4 through the first operation hole 434 and the second operation hole 421, and can be operated from the front of the instrument body 4.

The operation member 81 is displaced with respect to the instrument body 4 in accordance with the interruption of the power supply path L1. Specifically, the operation member 81 rotates in conjunction with the opening/closing part M1 and moves between an on position (see FIG. 2A) and an off position (see FIG. 2B). The ON position is a position corresponding to the conduction state of the opening/closing unit M1, and the OFF position is a position corresponding to the blocking state of the opening/closing unit M1. That is, when the opening/closing portion M1 is in the conductive state, the operating member 81 is located at the ON position as shown in FIG. 2A. When the operating member 81 is in the ON position, the front surface of the operating member 81 is substantially flush with the one surface 4A (front surface) of the instrument body 4. On the other hand, when the opening/closing part M1 is switched from the conducting state to the shut-off state, the operating member 81 rotates and the distal end portion of the operating member 81 moves forward (front side), and the operating member 81 is turned off as shown in FIG. 2B. Move to position. When the operating member 81 is in the off position, the operating member 81 projects forward from the one surface 4A of the instrument body 4.

As described above, since the operating member 81 and the opening/closing portion M1 are interlocked with each other, when the opening/closing portion M1 receives a drive signal from the control portion 7 and the opening/closing portion M1 is switched from the conductive state to the cutoff state, the operating member 81 is Move from the on position to the off position. On the contrary, when the operating member 81 moves from the off position to the on position, the opening/closing part M1 switches from the cutoff state to the conductive state. Therefore, when the user operates the operation member 81 in the off position to move it to the on position, the opening/closing part M1 in the cutoff state can be switched to the conductive state. The operation of moving the operation member 81 from the off position to the on position is called a recovery operation.

Further, in the present embodiment, the opening/closing section M1 changes from the conduction state to the cutoff state not only when the drive signal is received from the control unit 7 but also when the operation member 81 is moved from the ON position to the OFF position. Switch. Therefore, the user can manually switch between the conductive state and the blocked state of the opening/closing section M1 by operating the operation member 81. In other words, the opening/closing section M1 functions as a switch device that is turned on/off according to the operation of the operation member 81.

(2.2.4) Second Mode Hereinafter, description will be made focusing on the second mode corresponding to the operation mode for inspection. The second algorithm includes a determination that compares the temperature detected by each temperature detection unit 5 with a second temperature threshold Tth2 (see FIG. 6). The second temperature threshold Tth2 is lower than the first temperature threshold Tth1. Here, as an example, the second temperature threshold value Tth2 is a threshold value higher than room temperature (20° C.±15° C.: 5 to 35° C.). Here, the second temperature threshold Tth2 is, eg, 40° C.

The second algorithm of the present embodiment includes determination as to whether or not the temperature detected by each temperature detection unit 5 is within the predetermined range R1 (see FIG. 6). In this case, the lower limit value DW1 of the predetermined range R1 is the second temperature threshold value Tth2, and the upper limit value UP1 of the predetermined range R1 is the first temperature threshold value Tth1 set between the first temperature threshold value Tth1 and the second temperature threshold value Tth2. 3 temperature threshold value Tth3. The third temperature threshold Tth3 is, eg, 60° C.

As described above, the control unit 7 switches from the first mode to the second mode in response to a predetermined operation on the switch 84 (for example, a long press operation for 5 seconds or more).

When the control unit 7 switches from the first mode to the second mode, the control unit 7 may immediately start the temperature determination based on the second algorithm, but here, as an example, after the specified time TM2 has elapsed from the specific timing t0. , Temperature determination is started (see FIG. 7A). The specified time TM2 is, for example, 60 seconds, but is not particularly limited.

The specific timing t0 is a timing at which the heat having at least a temperature higher than room temperature starts to be supplied toward the instrument body 4. The supply of heat will be described later. The specific timing t0 may be appropriately determined by the inspector, and here is the time when the inspector operates the switch 84 (for example, a short pressing operation).

In the second mode, after the temperature determination is started, the second determination unit 74 determines whether the temperatures detected by the plurality of temperature detection units 5 are within the predetermined range R1. Specifically, the second determination unit 74 determines whether the temperature is within the predetermined range R1 in the determination period T1 (see FIG. 7A) from the time t1 when the specified time TM2 has elapsed to the time t2. To determine. The determination period T1 is, for example, 5 seconds, but is not particularly limited. The second determination unit 74 may make the determination using the instantaneous value of the temperature of the temperature detection unit 5 or the moving average value of the temperature, as in the first mode. The second determination unit 74 determines that the operation related to the temperature detection unit 5 is normal if the temperature is within the predetermined range R1 within the determination period T1. The predetermined range R1 is a range corresponding to the temperature set by the heat source H1 (see FIG. 7B) used in the inspection method described later, and if the temperature detected by the temperature detection unit 5 is within this range, This is an appropriate range in which the temperature detection performance of the temperature detection unit 5 is determined to be normal. Here, the second determination unit 74 determines that the operation related to the temperature detection unit 5 is abnormal when the temperature is outside the predetermined range R1 (instantaneously) even once within the determination period T1.

When the control unit 7 determines that the operation related to the temperature detection unit 5 is normal, the control unit 7 causes the opening/closing unit M1 to cut off the power supply path L1 between the terminal member 2 and the connection member 3. In other words, the control unit 7 causes the opening/closing unit M1 to cut off the power supply path L1 when the second condition “the operation regarding the temperature detection unit 5 is determined to be normal in the second mode” is satisfied. .. That is, the control unit 7 causes the opening/closing unit M1 to cut off the power supply path L1 when either the first condition or the second condition is satisfied, including the first condition in the first mode.

The control unit 7 outputs a drive signal to the opening/closing unit M1 and controls the opening/closing unit M1 to switch from the conductive state to the cutoff state. As a result, the operation member 81 (operation lever) is displaced from the state of FIG. 2A to the state of FIG. 2B. By visually confirming the displacement of the operation member 81, the inspector can know that the operation related to the temperature detection unit 5 is normal. That is, if the operation member 81 is displaced, it is determined that the operation related to the temperature detection unit 5 is normal, and if the operation member 81 is not displaced, it is determined that the operation related to the temperature detection unit 5 is abnormal.

Further, the notification unit 71 of the notification unit M2 may notify the determination result (whether the operation related to the temperature detection unit 5 is normal or abnormal). That is, the notification unit 71 may notify the inspector of the determination result via the buzzer 83 and the display unit 82. In particular, when the operation related to the temperature detection unit 5 is abnormal, the opening/closing unit M1 remains in the conductive state, and therefore it may be difficult for the inspector to make a determination only by the displacement of the operation member 81. Therefore, it is desirable that the notification unit 71 also notifies the determination result.

By the way, in this embodiment, a plurality of temperature detection units 5 are provided. Therefore, here, the second condition is that it is determined that the operations of all the plurality of temperature detection units 5 are normal in the second mode. In other words, if even one operation of the temperature detecting unit 5 is abnormal, the control unit 7 does not cause the opening/closing unit M1 to cut off the power supply path L1. Therefore, even if the inspector has a plurality of temperature detecting units 5, if all the temperature detecting units 5 operate normally, the operating member 81 is displaced, so that all the temperature detecting units 5 can be visually observed. You can check the operation collectively. If at least one of the notification units M2 has an abnormality in the operation of the temperature detection unit 5, the notification unit 71 notifies that the operation related to the temperature detection unit 5 is abnormal. It is desirable that the control unit 7 specifies the abnormal temperature detection unit 5 and notifies the notification unit 71 of the notification unit M2 of information regarding the specified temperature detection unit 5.

(2.3) Inspection Method Next, an example of an inspection method of the wiring device 1 will be briefly described with reference to FIGS. 7A and 7B. The characteristics G1 and G2 of FIG. 7A show an example of the temperature characteristics detected by the two temperature detection units 5, respectively. The procedure of the following inspection method is merely an example.

The inspector electrically connects an external power source (commercial power source or the like) to the terminal member 2 of the wiring tool 1 for inspection in order to obtain an operation power source of the control unit 7 of the wiring tool 1. The inspector also prepares a heat source H1 (FIG. 7B) such as a heater. The inspector presses the switch 84 for a long time to switch the operation mode of the wiring device 1 from the first mode to the second mode. The time on the horizontal axis of FIG. 7A is set to zero at the time of switching to the second mode. The control unit 7 of the wiring device 1 uses the built-in timer to start measuring a predetermined time TM1.

Then, the inspector starts supplying heat from the heat source H1 to the one surface 4A (front surface) of the appliance body 4 of the wiring appliance 1. The heat from the heat source H1 is a heat having a temperature higher than at least room temperature, and is a heat that does not deteriorate the quality of the wiring device 1. The set temperature of the heat source H1 is, for example, 120° C., but the temperature is lowered before the heat reaches the wiring device 1, so the temperature detected by the wiring device 1 in the normal state is a predetermined range R1. Will be inside.

In the present embodiment, one surface 4A of the instrument body 4 is the reception surface U1 that is exposed to heat. That is, the reception surface U1 is a surface provided with the connection port 11 to which the plug 91 is connected. The heat from the heat source H1 can effectively heat the connection member 3 via the connection port 11. Further, the heat from the heat source H1 is also supplied to the projection area of the terminal member 2 on the reception surface U1.

The inspector shortly presses the switch 84 when the supply of heat is started. When detecting a short push of the switch 84 during the second mode, the wiring device 1 sets the time point as a specific timing t0 when the heat supply is started. Then, the wiring device 1 starts the temperature determination when the specified time TM2 (for example, 60 seconds) has elapsed from the specific timing t0.

At the time t1 when the specified time TM2 has passed, the wiring device 1 blinks the display unit 82, for example, to notify the inspector that the temperature determination has started. The inspector stops the supply of heat from the heat source H1 at the timing when the start of temperature determination is known.

The wiring device 1 determines whether or not the temperature detected by each temperature detection unit 5 is within a predetermined range R1 in the determination period T1 (for example, 5 seconds). In the example of FIG. 7A, since the temperature indicated by the characteristic G1 is within the predetermined range R1 during the determination period T1, the operation of the temperature detection unit 5 corresponding to the characteristic G1 is determined to be normal. On the other hand, the temperature indicated by the characteristic G2 is higher than the third temperature threshold value Tth3 corresponding to the upper limit value UP1 of the predetermined range R1 in the determination period T1, and is outside the predetermined range R1, and therefore the temperature corresponding to the characteristic G2. The operation of the detection unit 5 is determined to be abnormal. Even if the detected temperature is lower than the second temperature threshold value Tth2 corresponding to the lower limit value DW1 of the predetermined range R1 in the determination period T1, the wiring device 1 determines that the operation of the temperature detection unit 5 is abnormal. To do.

Then, the inspector can know the determination result through the displacement of the operation member 81 due to the execution of the interruption in the opening/closing section M1, the buzzer 83, and the display section 82. That is, the inspector determines whether the wiring device 1 to be inspected passes or fails, based on the state of the operation member 81 and the notification contents of the buzzer 83 and the display unit 82. In the example of FIG. 7A, since the operation of the temperature detecting unit 5 corresponding to the characteristic G2 is abnormal, the shutoff at the opening/closing unit M1 is not executed. Therefore, the inspector can know that there is an abnormality in the temperature detecting unit 5 through the state of the operating member 81 that is not displaced and the buzzer 83 and the display unit 82.

The wiring device 1 switches the second mode to the first mode when a predetermined time TM1 elapses after switching from the first mode to the second mode. That is, the inspection operation mode automatically ends. Therefore, it is possible to reduce the possibility that the wiring device 1 is used at the installation site or the like in the second mode, for example. Further, even if the user accidentally performs a predetermined operation on the switch 84, it is possible to reduce the possibility that the wiring device 1 will operate for a long time in the second mode. The predetermined time TM1 is, for example, several minutes, but is not particularly limited.

As described above, in the present embodiment, the first mode is switched to the second mode in response to a predetermined operation, and the temperature determination is performed based on the second algorithm different from the first algorithm in the first mode. Therefore, as compared with the case where the operation confirmation (inspection) is performed in the first mode, for example, it is possible to improve the ease of the operation confirmation regarding the temperature detection performance while suppressing the deterioration of quality.

The first algorithm includes a determination that compares the temperature with a first temperature threshold Tth1, while the second algorithm includes a determination that compares the temperature with a second temperature threshold Tth2, and the second temperature threshold Tth2 includes It is lower than 1 temperature threshold Tth1. Therefore, for example, if the first mode corresponds to a normal operation mode when the wiring device 1 is used, switching to the second mode at the time of inspection can further suppress the deterioration of the quality of the wiring device 1 due to the inspection.

In particular, the wiring device 1 starts the temperature determination after the specified time TM2 has elapsed from the specific timing t0. Therefore, in a situation where sufficient heat is supplied and the temperature detected by the temperature detection unit 5 also rises, it is more likely that the temperature determination based on the second algorithm will be performed, so that the operation check regarding the temperature detection performance is performed. The reliability of can be improved.

Further, since the one surface 4A of the appliance body 4 is the receiving surface U1 exposed to heat, it is possible to easily confirm the operation regarding the performance of the temperature detection using the connection port 11.

(2.4) Inspection of Heat Transfer Member By the way, the wiring device 1 according to the present embodiment can inspect not only the operation of the temperature detecting unit 5 but also the forgetting to attach the heat transfer member 512. In other words, the second algorithm includes not only the temperature determination for the operation inspection described above, but also the following determination for forgetting to attach.

Specifically, as described above, the sensor element 510, the heat transfer member 512, and the terminal member 2 of the first temperature detection unit 51, when the sensor element 510 is viewed from the reception surface U1, as described above, the first temperature detection unit 51, The heat transfer member 512 and the terminal member 2 are arranged in this order (see the dashed line X3 in FIG. 5B ).

When the inspector starts supplying heat from the heat source H1 to the reception surface U1, the heat passes through the sensor element 510 via the outer cover 42, the inner cover 43, and the sensor substrate 511, as indicated by the arrow in FIG. 5B. Will be transmitted to. Here, since the heat transfer member 512 is disposed on the back surface side of the sensor element 510, the heat from the heat source H1 can be radiated through the heat transfer member 512, the terminal member 2, and the like. In other words, the characteristic of the temperature detected by the first temperature detection unit 51 is affected by the heat radiation in the heat transfer member 512.

For example, when the inspector stops the supply of heat from the heat source H1 at the timing when the start of temperature determination is known, the characteristic of the temperature detected by the first temperature detection unit 51 after that is the heat transfer member 512. Under the influence of heat radiation in, it gradually decreases. Therefore, the control unit 7 stores in advance, in its own memory, the reference value of the temperature used for inspecting the presence or absence of the heat transfer member 512. The controller 7 compares the temperature actually detected by the first temperature detector 51 with a reference value, and if the temperature is higher than the reference value, the heat transfer member 512 is not arranged in the instrument body 4 ( (Forgot to attach) The control unit 7 notifies the determination result regarding the presence or absence of the heat transfer member 512 from the buzzer 83 and the display unit 82.

Therefore, the inspector can easily inspect whether or not the heat transfer member 512 is installed (whether the heat transfer member 512 is forgotten) based on the temperature detected by the temperature detection unit 5.

(3) Modifications The above embodiment is only one of the various embodiments of the present disclosure. The above embodiment can be variously modified according to the design and the like as long as the object of the present disclosure can be achieved. Further, the same function as that of the wiring device 1 according to the above-described embodiment may be embodied by a control method of the wiring device 1, a computer program, a non-transitory recording medium recording the computer program, or the like.

Hereinafter, modified examples of the above embodiment will be listed. The modifications described below can be applied in appropriate combination. Hereinafter, the above embodiment may be referred to as a “basic example”.

The control unit 7 of the wiring device 1 according to the present disclosure includes a computer system. The computer system mainly has a processor and a memory as hardware. When the processor executes the program recorded in the memory of the computer system, the function as the control unit 7 of the wiring device 1 according to the present disclosure is realized. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or recorded in a non-transitory recording medium such as a memory card, an optical disk, a hard disk drive, etc. that can be read by the computer system. May be provided. The processor of the computer system is composed of one or a plurality of electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). The integrated circuit such as IC or LSI referred to here is called differently depending on the degree of integration, and includes an integrated circuit called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Further, an FPGA (Field-Programmable Gate Array) that is programmed after the manufacture of the LSI, or a logic device capable of reconfiguring the connection relation inside the LSI or reconfiguring the circuit section inside the LSI should also be adopted as a processor. You can The plurality of electronic circuits may be integrated in one chip, or may be distributed and provided in the plurality of chips. The plurality of chips may be integrated in one device, or may be distributed and provided in the plurality of devices. The computer system referred to herein includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also composed of one or a plurality of electronic circuits including a semiconductor integrated circuit or a large scale integrated circuit.

Further, it is not an essential configuration of the wiring device 1 that the plurality of functions of the wiring device 1 are integrated in one housing, and the constituent elements of the wiring device 1 are distributed and provided in the plurality of housings. May be. Further, at least a part of the function of the wiring device 1, for example, a part of the function of the wiring device 1 may be realized by a cloud (cloud computing) or the like. On the contrary, as in the basic example, the plurality of functions of the wiring device 1 may be integrated in one housing.

(3.1) Modification 1
Hereinafter, this modification (modification 1) of the wiring device 1 will be described with reference to FIG. 8. However, the same components as those of the wiring device 1 of the basic example are designated by the same reference numerals, and the description thereof will be appropriately omitted.

In the basic example, during the second mode, the second determination unit 74 determines whether the temperature detected by each temperature detection unit 5 is within the predetermined range R1. That is, in the basic example, the second algorithm includes determination as to whether or not the temperature detected by each temperature detection unit 5 is within the predetermined range R1.

In the first modification, the second algorithm includes determination as to whether or not the temperature change from the first temperature to the second temperature is within the predetermined range R1. That is, the second determination unit 74 of Modification 1 determines whether or not the temperature change is within the predetermined range R1 with respect to the temperature detected by each temperature detection unit 5.

The first temperature is the temperature detected by the temperature detection unit 5 at the first timing. The first timing is, for example, a specific timing t0 at which the supply of heat from the heat source H1 is started, but may be the timing at which the mode is switched to the second mode or the start timing of the determination period T1.

The second temperature is the temperature detected by the temperature detection unit 5 at the second timing after the first timing. Here, the second timing corresponds to each timing of the sampling cycle of 1 time/second that follows the specific timing t0. In short, the difference between the first temperature and the second temperature detected at the latest timing is referred to as “temperature change” with the first temperature as a reference. Therefore, the temperature change at the specific timing t0 is zero.

The characteristics G3 and G4 in FIG. 8 each represent an example of “temperature change” based on the temperatures detected by the two temperature detection units 5. In the example of FIG. 8, since the temperature indicated by the characteristic G3 is within the predetermined range R1 in the determination period T1, the operation of the temperature detection unit 5 corresponding to the characteristic G3 is determined to be normal. On the other hand, the temperature indicated by the characteristic G4 is higher than the third temperature threshold value Tth3 corresponding to the upper limit value UP1 of the predetermined range R1 in the determination period T1 and is outside the predetermined range R1, and therefore the temperature corresponding to the characteristic G4. The operation of the detection unit 5 is determined to be abnormal.

Here, the second temperature threshold Tth2 in Modification 1 is a correction value obtained by subtracting the first temperature from the second temperature threshold Tth2 (for example, 40° C.) of the basic example. Similarly, the third temperature threshold Tth3 in Modification 1 is a correction value obtained by subtracting the first temperature from the third temperature threshold Tth3 (for example, 60° C.) of the basic example. That is, the second temperature threshold value Tth2 is lower than the first temperature threshold value Tth1 and is variable according to the temperature (first temperature) detected by the temperature detection unit 5 at the specific timing t0.

As described above, since the wiring device 1 of the modified example 1 performs the temperature determination using the temperature change based on the first temperature at a certain timing (first timing), the influence of the circuit error peculiar to the temperature detection unit 5 is reduced. As a result, the reliability of the operation confirmation regarding the temperature detection performance can be improved.

Particularly, in the wiring device 1 of the modified example 1, since the certain timing (first timing) is the specific timing t0 when the supply of heat from the heat source H1 is started, the first temperature is the ambient temperature before the inspection ( It is roughly equivalent to the environmental temperature of the inspection). Then, the second temperature threshold value Tth2 is variable according to the ambient temperature. As a result, it is possible to cope with a change in temperature rise due to the ambient temperature.

By the way, in the above “(2.4) Inspection of heat transfer member”, the control unit 7 stores in advance a reference value of the temperature used for inspecting the presence or absence of the heat transfer member 512 in its own memory. I explained the point. It is desirable that this reference value also be variable according to the ambient temperature. That is, in Modification 1, it is desirable that the control unit 7 subtract the first temperature from the reference value to correct the reference value.

(3.2) Modification 2
Hereinafter, this modification (modification 2) of the wiring device 1 will be described with reference to FIGS. 9A and 9B. However, the same components as those of the wiring device 1 of the basic example are designated by the same reference numerals, and the description thereof will be appropriately omitted.

In the basic example, in the column “(2.4) Inspection of heat transfer member”, the wiring device 1 can inspect not only the operation detection of the temperature detection unit 5 but also the forgetting to attach the heat transfer member 512. Explained. In the basic example, the forgetting to attach the heat transfer member 512 is inspected by using only the temperature detected by the first temperature detecting unit 51.

Modified Example 2 is a basic example in that it is inspected for forgetting to attach the heat transfer member 512 using not only the temperature detected by the first temperature detection unit 51 but also the temperature detected by the second temperature detection unit 52. Different from

Specifically, the wiring device 1 of the modified example 2 includes at least two temperature detection units 5. Here, as in the basic example, the wiring device 1 includes a first temperature detection unit 51 and a second temperature detection unit 52. Further, as in the basic example, the first temperature detecting unit 51 contacts the terminal member 2 via the heat transfer member 512 in the device body 4, and the second temperature detecting unit 52 moves in the device body 4. , Contact the connecting member 3.

And the 2nd algorithm of the modification 2 is whether the difference (temperature difference) between the temperature detected by the 1st temperature detection part 51 and the temperature detected by the 2nd temperature detection part 52 is smaller than the 2nd temperature threshold Tth2. The determination (hereinafter, referred to as “difference determination”) is included. The second temperature threshold value Tth2 in the basic example is a threshold value higher than the room temperature, but the second temperature threshold value Tth2 in the modified example 2 is a threshold value for difference determination, and is set to, for example, 10° C.

FIG. 9A is a graph in a state (normal state) in which the heat transfer member 512 is arranged at a predetermined position. The characteristics G11 and G12 in the upper graph of FIG. 9A indicate examples of the temperature characteristics detected by the first temperature detection unit 51 and the second temperature detection unit 52, respectively. In the upper graph of FIG. 9A, the heat from the heat source H1 can be dissipated to some extent by the heat transfer member 512 due to the heat transfer member 512 being arranged at a predetermined position, and as a result, the characteristics G11 and G12 can be obtained. Almost match. Therefore, the temperature difference characteristic G13 becomes small as shown in the lower graph of FIG. 9A and is smaller than the second temperature threshold Tth2 (particularly within the determination period T1).

On the other hand, FIG. 9B is a graph in a state where the heat transfer member 512 is forgotten to be attached. In the upper graph of FIG. 9B, due to occurrence of forgetting to attach the heat transfer member 512, heat from the heat source H1 is less likely to be dissipated, and the temperature indicated by the characteristic G11 rises overall as compared with the characteristic G12. There is. As a result, the temperature difference characteristic G13 exceeds the second temperature threshold Tth2 (particularly within the determination period T1) as shown in the lower graph of FIG. 9B.

The controller 7 calculates a temperature difference between the temperature detected by the first temperature detector 51 and the temperature detected by the second temperature detector 52, and compares the temperature difference with the second temperature threshold Tth2. If the temperature difference is higher than the second temperature threshold value Tth2 within the determination period T1, the control unit 7 determines that the heat transfer member 512 is not arranged in the instrument body unit 4 (forgetting to attach). The control unit 7 notifies the determination result regarding the presence or absence of the heat transfer member 512 from the buzzer 83 and the display unit 82. Therefore, the inspector can easily inspect whether the heat transfer member 512 is installed (whether the heat transfer member 512 is forgotten to be attached).

The second algorithm of Modification 2 may include not only the above-described difference determination but also the temperature determination regarding the operation inspection of the temperature detection unit 5 of the basic example. However, it is necessary to separately set the second temperature threshold Tth2 for difference determination and the second temperature threshold Tth2 for temperature determination related to the operation inspection. The control unit 7 may perform the temperature determination related to the operation inspection and the difference determination related to forgetting to attach the heat transfer member 512 at substantially the same time within the determination period T1, or may perform the determination during different periods.

(3.3) Other Modifications In the basic example, the control unit 7 switches from the first mode to the second mode in response to a predetermined operation on the switch 84 (for example, a long pressing operation for 5 seconds or more). However, the operation unit that receives a predetermined operation is not limited to the switch 84. For example, it may be a dedicated switch provided at a position (for example, on the back side of the wiring device 1) that is not visible to the user who is using the wiring device 1. The operation unit that receives a predetermined operation may be an external remote controller that is separate from the wiring device 1. In this case, the wiring device 1 has a receiving unit that receives an instruction signal from the remote controller.

In the basic example, an example in which heat is supplied to the one surface 4A of the instrument body 4 at the time of inspection is shown, but the invention is not particularly limited. For example, heat may be supplied to the back surface 4B of the instrument body 4 during the inspection.

In the basic example, the wiring device 1 switches the second mode to the first mode when a predetermined time TM1 elapses after switching from the first mode to the second mode. That is, the inspection operation mode automatically ends with the passage of time. However, for example, if a specific operation (for example, a long press operation again) is received before the elapse of the predetermined time TM1, the wiring device 1 may forcibly switch the second mode to the first mode. Alternatively, when the wiring device 1 determines that the operations of all the temperature detection units 5 are normal, the wiring device 1 may switch the second mode to the first mode.

In the modified example 1, the wiring device 1 corrects the second temperature threshold value Tth2 according to the environmental temperature. However, instead of correcting the second temperature threshold value Tth2, the determination period T1 may be adjusted (corrected).

In the basic example, the reception surface U1 (one surface 4A) supplies heat by assuming the entire surface of the outer cover 42, but a part of the outer cover 42, for example, the second portion 42B (see FIG. 3). Heat may be supplied in the removed state.

(4) Advantages As described above, the wiring device (1) according to the first aspect includes the device body part (4), the temperature detection part (5), and the control part (7). The temperature detection unit (5) detects the temperature corresponding to the power supply path (L1) in the instrument body (4). The control unit (7) makes a determination based on the temperature detected by the temperature detection unit (5), and performs at least one of shutting off the power supply path (L1) and notifying the temperature according to the result of the determination. The control unit (7) has, as operation modes, a first mode in which the above determination is performed based on a first algorithm, and a second mode in which the above determination is performed based on a second algorithm different from the first algorithm. The control unit (7) switches from the first mode to the second mode according to a predetermined operation. According to the first aspect, the first mode is switched to the second mode in response to a predetermined operation, and the determination is performed based on the second algorithm different from the first algorithm in the first mode. Therefore, for example, by using the second mode as an operation confirmation (inspection) mode, it is possible to improve the ease of operation confirmation regarding the temperature detection performance while suppressing the deterioration of quality.

Regarding the wiring device (1) according to the second aspect, in the first aspect, it is preferable that the first algorithm includes a determination that compares the temperature with a first temperature threshold value (Tth1). The second algorithm preferably includes a determination comparing the temperature with a second temperature threshold (Tth2). The second temperature threshold value (Tth2) is preferably lower than the first temperature threshold value (Tth1). According to the second aspect, for example, if the first mode corresponds to a normal operation mode when the wiring device (1) is used, the wiring device caused by the operation confirmation is switched to the second mode when the operation is confirmed. The deterioration in quality of (1) can be further suppressed.

Regarding the wiring device (1) according to the third aspect, in the second aspect, the second algorithm determines whether or not the temperature change from the first temperature to the second temperature is within a predetermined range (R1). It is preferable to include the determination of. The lower limit value (DW1) of the predetermined range (R1) is the second temperature threshold value (Tth2), and the upper limit value (UP1) of the predetermined range (R1) is the first temperature threshold value (Tth1) and the second temperature threshold value. It is the third temperature threshold value (Tth3) set between (Tth2). The first temperature is the temperature detected by the temperature detection unit (5) at the first timing. The second temperature is the temperature detected by the temperature detection unit (5) at the second timing after the first timing. According to the third aspect, it is possible to reduce the influence of the circuit error peculiar to the temperature detection unit (5) and improve the reliability of the operation confirmation regarding the temperature detection performance.

With regard to the wiring device (1) according to the fourth aspect, in the second aspect, at least two temperature detection units (5) are provided as a first temperature detection unit (51) and a second temperature detection unit (52). Preferably. The power feeding path (L1) preferably includes a connecting member (3) to which the plug (91) is connected and a terminal member (2) to which the power feeding line (L1) is connected. The first temperature detector (51) contacts the terminal member (2) through the heat transfer member (512) in the instrument body (4). The second temperature detector (52) contacts the connecting member (3) in the instrument body (4). The second algorithm determines whether the difference between the temperature detected by the first temperature detection unit (51) and the temperature detected by the second temperature detection unit (52) is smaller than the second temperature threshold value (Tth2). It is preferable to include. According to the fourth aspect, it is possible to easily inspect whether or not the heat transfer member (512) is arranged (whether or not the attachment is forgotten).

Regarding the wiring device (1) according to the fifth aspect, in any one of the first to fourth aspects, the control unit (7), in the second mode, a specific time (t0) from a specified time. It is preferable to start the determination based on the second algorithm after (TM2) has elapsed. The specific timing (t0) is a timing at which the heat having at least a temperature higher than room temperature starts to be supplied to the instrument body (4). According to the fifth aspect, there is a high possibility that the above-mentioned determination based on the second algorithm will be made under the condition that sufficient heat is supplied and the temperature detected by the temperature detection unit (5) also rises. It is possible to improve the reliability of the operation confirmation regarding the temperature detection performance.

Regarding the wiring device (1) according to the sixth aspect, in the fifth aspect, it is preferable that the power feeding path (L1) includes a connecting member (3) to which the plug (91) is connected. The instrument body (4) preferably has, on one surface (4A) thereof, a connection port (11) facing the connection member (3) and into which the plug (91) is inserted. One surface (4A) is preferably a reception surface (U1) exposed to heat. According to the sixth aspect, it is possible to easily confirm the operation regarding the performance of temperature detection using the connection port (11).

Regarding the wiring device (1) according to the seventh aspect, in the sixth aspect, the power feeding path (L1) preferably further includes a terminal member (2) to which the power feeding line (92) is connected. The terminal member (2) is preferably exposed from the surface (rear surface 4B) opposite to the one surface (4A) of the instrument body (4). The temperature detection part (5) contacts the terminal member (2) through the heat transfer member (512) in the instrument body part (4). The temperature detection unit (5), the heat transfer member (512), and the terminal member (2) are the temperature detection unit (5), the heat transfer member (512), and the terminal member (2) when viewed from the reception surface (U1). It is preferable to line up in this order. According to the seventh aspect, whether or not the heat transfer member (512) is installed can be inspected based on the temperature detected by the temperature detection unit (5).

Regarding the wiring device (1) according to the eighth aspect, in any one of the fifth aspect to the seventh aspect, the first algorithm includes a determination that compares the temperature with a first temperature threshold value (Tth1). Is preferred. The second algorithm preferably includes a determination comparing the temperature with a second temperature threshold (Tth2). The second temperature threshold value (Tth2) is preferably lower than the first temperature threshold value (Tth1) and variable according to the temperature detected by the temperature detection unit (5) at a specific timing (t0). According to the eighth aspect, since the second temperature threshold value (Tth2) can be changed according to the temperature detected by the temperature detection unit (5) at a specific timing (t0), fluctuations in temperature rise due to ambient temperature. Can handle.

With regard to the wiring device (1) according to the ninth aspect, it is preferable that in any one of the first aspect to the eighth aspect, an opening/closing section (M1) is further provided. The opening/closing unit (M1) cuts off the power supply path (L1). Further, the opening/closing part (M1) has an operation lever (operation member 81) which is displaced with respect to the instrument main body part (4) in response to interruption of the power supply path (L1). The control unit (7) preferably causes the switching unit (M1) to cut off the power supply path (L1) when either the first condition or the second condition is satisfied. The first condition is that, in the first mode, it is determined that an abnormal temperature rise has occurred in the instrument body (4). The second condition is that it is determined that the operation related to the temperature detection unit (5) is normal in the second mode. According to the ninth aspect, it is possible to know that the operation relating to the temperature detection unit (5) is normal by visually confirming the displacement of the operation lever in the second mode. It can also be confirmed whether the opening/closing part (M1) operates normally.

The wiring device (1) according to the tenth aspect is preferably provided with a plurality of temperature detecting sections (5) in the ninth aspect. It is preferable that the second condition is that it is determined that the operations related to all the plurality of temperature detection units (5) are normal in the second mode. According to the tenth aspect, even if there are a plurality of temperature detecting units (5), it is possible to collectively confirm the operation of all the temperature detecting units (5).

With regard to the wiring device (1) according to the eleventh aspect, in any one of the first to tenth aspects, the control unit (7) is preferably configured as follows. That is, the control unit (7) preferably switches the second mode to the first mode when a predetermined time (TM1) has elapsed after switching the operation mode from the first mode to the second mode. According to the eleventh aspect, for example, it is possible to reduce the possibility that the wiring device (1) is used in the second mode.

The control method according to the twelfth aspect is a method for controlling the wiring device (1). The control method includes a detection step, a determination step, an execution step, and a switching step. In the detection step, the temperature corresponding to the electric power feeding path (L1) in the instrument body portion (4) of the wiring instrument (1) is detected. In the determination step, the determination based on the temperature detected in the detection step is performed. At the execution step, at least one of shutting off the power supply path (L1) and notifying the temperature is performed according to the determination result. The determination step has, as operation modes, a first mode in which the above determination is performed based on a first algorithm, and a second mode in which the above determination is performed based on a second algorithm different from the first algorithm. In the switching step, the first mode is switched to the second mode according to a predetermined operation. According to the twelfth aspect, it is possible to provide a control method capable of improving the ease of confirming the operation regarding the temperature detection performance while suppressing the deterioration of the quality of the wiring device (1).

The configurations according to the second to eleventh aspects are not essential configurations for the wiring device (1), and can be omitted as appropriate.

1 Wiring device 2 Terminal member 3 Connection member 4 Instrument body 4A One surface 4B Rear surface (opposite surface)
5 Temperature Detection Section 7 Control Section 11 Connection Port 81 Operation Member (Operation Lever)
91 plug 92 power supply line 512 heat transfer member L1 power supply path M1 opening/closing part t0 specific timing Tth1 first temperature threshold value Tth2 second temperature threshold value Tth3 third temperature threshold value UP1 upper limit value DW1 lower limit value R1 predetermined range TM1 predetermined time TM2 regulation Time U1 Reception side

Claims (12)

Instrument body,
A temperature detection unit that detects a temperature corresponding to a power supply path in the instrument body,
Performing a determination based on the temperature detected by the temperature detection unit, according to the result of the determination, a control unit that performs at least one of the cutoff of the power supply path and the notification regarding the temperature,
Equipped with
The control unit, as an operation mode,
A first mode for performing the determination based on a first algorithm,
A second mode in which the determination is performed based on a second algorithm different from the first algorithm,
The control unit switches from the first mode to the second mode according to a predetermined operation,
Wiring equipment. The first algorithm includes a determination comparing the temperature to a first temperature threshold,
The second algorithm includes a determination comparing the temperature to a second temperature threshold,
The second temperature threshold is lower than the first temperature threshold,
The wiring device according to claim 1. The second algorithm includes a determination as to whether the temperature change from the first temperature to the second temperature is within a predetermined range,
A lower limit value of the predetermined range is the second temperature threshold value, and an upper limit value of the predetermined range is a third temperature threshold value set between the first temperature threshold value and the second temperature threshold value. ,
The first temperature is the temperature detected by the temperature detection unit at a first timing,
The second temperature is the temperature detected by the temperature detection unit at a second timing after the first timing,
The wiring device according to claim 2. At least two of the temperature detectors are provided as a first temperature detector and a second temperature detector,
The power feeding path includes a connecting member to which the plug is connected, and a terminal member to which the power feeding line is connected,
The first temperature detection unit is in contact with the terminal member via a heat transfer member in the appliance body,
The second temperature detection unit is in contact with the connection member in the instrument body,
The second algorithm includes a determination whether a difference between the temperature detected by the first temperature detection unit and the temperature detected by the second temperature detection unit is smaller than the second temperature threshold value.
The wiring device according to claim 2. In the second mode, the control unit starts the determination based on the second algorithm after a specified time has elapsed from a specific timing,
The specific timing is a timing at which heat having a temperature higher than room temperature starts to be supplied toward the appliance body.
The wiring device according to any one of claims 1 to 4. The power supply path includes a connection member to which a plug is connected,
The instrument body has, on one surface thereof, a connection port facing the connection member and into which the plug is inserted,
The one surface is a reception surface exposed to the heat,
The wiring device according to claim 5. The power feeding path further includes a terminal member to which a power feeding line is connected,
The terminal member is exposed from a surface opposite to the one surface of the instrument body,
The temperature detection unit is in contact with the terminal member via a heat transfer member in the instrument body,
The temperature detection unit, the heat transfer member and the terminal member are arranged in the order of the temperature detection unit, the heat transfer member and the terminal member when viewed from the reception surface.
The wiring device according to claim 6. The first algorithm includes a determination comparing the temperature to a first temperature threshold,
The second algorithm includes a determination comparing the temperature to a second temperature threshold,
The second temperature threshold value is lower than the first temperature threshold value, and is variable according to the temperature detected by the temperature detection unit at the specific timing,
The wiring device according to any one of claims 5 to 7. Further comprising an opening/closing unit that has an operation lever that executes the cutoff of the power supply path and that is displaced with respect to the instrument main body according to the cutoff of the power supply path,
The control unit causes the opening/closing unit to cut off the power feeding path when either one of the first condition and the second condition is satisfied,
The first condition is that, in the first mode, it is determined that an abnormal temperature rise has occurred in the instrument body,
The second condition is that, in the second mode, it is determined that the operation related to the temperature detection unit is normal.
The wiring device according to any one of claims 1 to 8. A plurality of the temperature detectors,
The second condition is that in the second mode, it is determined that the operations related to all of the plurality of temperature detection units are normal.
The wiring device according to claim 9. The control unit switches the second mode to the first mode when a predetermined time has elapsed after switching the operation mode from the first mode to the second mode,
The wiring device according to any one of claims 1 to 10. A method for controlling wiring equipment,
A detection step of detecting a temperature corresponding to a power supply path in the instrument body of the wiring instrument,
A determination step of performing determination based on the temperature detected in the detection step,
An execution step of performing at least one of disconnection of the power supply path and notification of the temperature according to a result of the determination;
Switching step,
Including,
The determination step, as an operation mode,
A first mode for performing the determination based on a first algorithm,
A second mode in which the determination is performed based on a second algorithm different from the first algorithm,
Switching from the first mode to the second mode in response to a predetermined operation in the switching step,
Control method.

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