JP2009158301A - Catch ceiling - Google Patents

Abstract

Provided is a hook ceiling capable of supplying DC power and performing telecommunication.
A hook ceiling 132 is separated from a signal separation circuit 40 for separating a high-frequency electrical signal superimposed on a DC power source DC from a DC breaker 114 supplied via a terminal section 52 from a power line L1. A signal conversion circuit 41 for converting an electrical signal into a signal for performing optical communication, a lighting control circuit 42 for controlling lighting of the light emitting diode LD based on the signal converted by the signal conversion circuit 41, and hooking of a lighting fixture And a hooking blade receiving portion 22 on which the blade is hooked and held. In this hook ceiling 132, direct-current power can be supplied to the lighting fixture via the hook plug receiving part 22 and the hook plug blade, and between the receiver which is an external communication device by optical communication via the light emitting diode LD. Communication is now possible.
[Selection] Figure 1

Description

  The present invention relates to a hook ceiling.

2. Description of the Related Art Conventionally, a hook ceiling in which an outlet to which a U plug is connected is provided is provided (see, for example, Patent Document 1). This hook ceiling has a bottomed cylindrical container with an open top surface, and a pair of hook plug blades of the hook cap is located on the bottom surface of the container at a point-symmetrical position around the center of the bottom surface. A pair of hooking blade insertion openings are provided for insertion. In addition, a pair of plug blade insertion openings into which the pair of plug blades of the U plug are respectively inserted are formed at the center of the bottom surface of the container.
Japanese Patent No. 3930651 (paragraph [0046] -paragraph [0050] and FIG. 19)

  In the hook ceiling shown in the above-mentioned Patent Document 1, an outlet to which a U plug is connected is provided on the bottom surface of the container, and power can be supplied to the electrical equipment through this outlet. There is a problem in that it is not provided with a function for transmitting and receiving a high-frequency electrical signal superimposed on the communication interface, and it is necessary to provide a separate communication interface in order to perform electrical communication, resulting in an increase in cost.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a hooking ceiling capable of supplying DC power and performing telecommunication.

  The invention of claim 1 includes a container body disposed on a construction surface, a terminal portion connected to a power line provided inside the container body and introduced from the construction surface side, and a plurality of hooking blades of a hooking cap. A plurality of hooking blade insertion holes that open on the lower surface of the container body to correspond to each, and each inserted from one end of each hooking blade insertion port provided in the body corresponding to each hooking blade insertion port A plurality of hooking blade receiving portions that hook and hold the hooking blade when the hooking blade is moved in the other end direction, and a transmission signal transmitted through the signal transmission path on the construction surface side with an external communication device. And a communication interface for sending and receiving between them.

  According to the second aspect of the present invention, the signal transmission path is also used as a power line, and the communication interface is configured to communicate with the first communication unit that performs communication via the power line by superimposing or separating a high-frequency electric signal on the power line. The second communication means for performing communication by radio signal, and the signal conversion means for converting the signal provided between the first communication means and the second communication means are provided.

  According to a third aspect of the present invention, the communication interface includes a modular plug connecting portion to which a modular plug for LAN is detachably connected, and the modular plug connecting portion is electrically connected to a plurality of contacts of the modular plug. A plurality of contacts, and at least part or all of the plurality of contacts is provided with power supply means for supplying DC power supplied via a terminal portion.

  The invention of claim 4 is characterized in that the modular plug connecting portion is provided in a portion inside the outer surface of the container body in which the plurality of hooking blade insertion openings are open, with respect to the hooking blade insertion opening. .

  The invention of claim 5 includes a plurality of LAN connection terminals to which signal lines forming a signal transmission line are connected, and each LAN connection terminal is electrically connected to a corresponding contact.

  In the invention of claim 6, the signal transmission line is also used as a power supply line, and the communication means for performing communication via the power supply line by superimposing or separating the high-frequency electric signal on the power supply line is separated by the communication means. And a signal conversion means for performing signal conversion between the electrical signal and the LAN signal input via the modular plug.

  According to the first aspect of the present invention, since the communication interface is provided, it is possible to provide a hook ceiling that can supply DC power to the connected lighting fixtures and enables electric communication, and as in the conventional example. Since there is no need to provide a separate communication interface, there is an effect that an increase in cost can be suppressed.

  According to the invention of claim 2, since the electric signal is transmitted by superimposing or separating the electric signal on the power supply line by the first communication means, the signal line for transmitting the electric signal can be reduced and the construction is performed. There is an effect that man-hours can be reduced, and as a result, costs can be reduced.

  According to the invention of claim 3, since a data signal can be transmitted to the modular plug connected to the modular plug connecting portion and a DC power supply can be supplied, DC power is supplied to the electrical equipment via the modular plug. There is an effect that can be. Further, there is no need to provide a separate power supply means for supplying direct current power to the electrical equipment, so that an increase in cost can be suppressed.

  According to the fourth aspect of the present invention, the modular plug connecting portion is provided in a portion inside the pair of hooking blade insertion openings that are empty spaces on the lower surface of the container, so that the outer dimension of the container is increased. There is an effect that it is possible to provide a hooking ceiling in which one of the two types of connection means can be selected.

  According to the invention of claim 5, the same effect as that of claim 3 can be obtained.

  According to the invention of claim 6, since the electric signal is transmitted by superimposing or separating the electric signal on the power line by the communication means, the signal line for transmitting the electric signal can be reduced and the number of construction steps can be reduced. As a result, the cost can be reduced.

  The embodiments described below are described assuming a detached house as a building to which the present invention is applied, but this does not preclude the application of the technical idea of the present invention to an apartment house. As shown in FIG. 10, the house H is provided with a DC power supply unit 101 that outputs DC power and a DC device 102 as a load driven by the DC power, and an output end of the DC power supply unit 101. DC power is supplied to the DC device 102 through the DC supply line Wdc connected to the. A current flowing through the DC supply line Wdc is monitored between the DC power supply unit 101 and the DC device 102. When an abnormality is detected, power is supplied from the DC power supply unit 101 to the DC device 102 on the DC supply line Wdc. A DC breaker 114 is provided for limiting or blocking the current.

  The DC supply line Wdc is used as both a DC power supply path and a communication path, and is connected to the DC supply line Wdc by superimposing a communication signal for transmitting data on a DC voltage using a high-frequency carrier wave. Enables communication between devices. This technique is similar to a power line carrier technique in which a communication signal is superimposed on an AC voltage in a power line that supplies AC power.

  The DC supply line Wdc is connected to the home server 116 via the DC power supply unit 101. The in-home server 116 is a main device for constructing a home communication network (hereinafter referred to as “home network”), and communicates with a subsystem constructed by the DC device 102 in the home network.

  In the example shown in the drawing, as an subsystem, an illumination system comprising an information equipment system K101 comprising an information-system DC device 102 such as a personal computer, a wireless access point, a router, and an IP telephone, and an illumination system DC equipment 102 such as a lighting fixture. K102, K105, an intercom system K103 including a DC device 102 for handling visitors and monitoring intruders, a residential alarm system K104 including a DC device 102 for an alarm system such as a fire detector, and the like. Each subsystem constitutes a self-supporting distributed system, and can operate even with the subsystem alone.

  The above-described DC breaker 114 is provided in association with a subsystem. In the illustrated example, four DCs are associated with the information equipment system K101, the lighting system K102 and the intercom system K103, the house alarm system K104, and the lighting system K105. A breaker 114 is provided. When a plurality of subsystems are associated with one DC breaker 114, a connection box 121 for dividing the system of the DC supply line Wdc is provided for each subsystem. In the illustrated example, a connection box 121 is provided between the illumination system K102 and the intercom system K103.

  As the information equipment system K101, there is provided an information equipment system K101 composed of a DC equipment 102 connected to a DC outlet 131 arranged in advance in the house H (constructed when the house H is constructed) in the form of a wall outlet or a floor outlet.

  The lighting systems K102 and K105 include a lighting system K102 composed of a lighting device (DC device 102) arranged in advance in the house H and a lighting device (DC device 102) connected to a hook ceiling 132 arranged in advance on the ceiling. An illumination system K105 is provided. At the time of interior construction of the house H, the contractor attaches the lighting fixture to the hook ceiling 132, or the householder himself attaches the lighting fixture.

  In addition to using an infrared remote control device, a control instruction for the lighting apparatus that is the DC device 102 constituting the lighting system K102 can be given using a communication signal from the switch 141 connected to the DC supply line Wdc. That is, the switch 141 has a communication function together with the DC device 102. In addition, a control instruction may be given by a communication signal from another DC device 102 in the home network or the home server 116 regardless of the operation of the switch 141. The instructions to the lighting fixture include lighting, extinguishing, dimming, and blinking lighting.

  Since any DC device 102 can be connected to the DC outlet 131 and the hooking ceiling 132 described above and DC power is output to the connected DC device 102, the DC outlet 131 and the hooking ceiling 132 are distinguished below. When it is not necessary, it is called “DC outlet”.

  These DC outlets have a plug-in connection port into which a contact (not shown) provided directly on the DC device 102 or a contact (not shown) provided via a connection line is inserted into the body. The contact receiver that directly contacts the contact inserted into the connection port is held by the container. That is, the direct current outlet supplies power in a contact manner. When the DC device 102 connected to the DC outlet has a communication function, a communication signal can be transmitted through the DC supply line Wdc. A communication function is provided not only in the DC device 102 but also in the DC outlet.

  The home server 116 not only is connected to the home network, but also has a connection port connected to the wide area network NT that constructs the Internet. When the in-home server 116 is connected to the wide area network NT, it is possible to receive services from the center server 200 that is a computer server connected to the wide area network NT.

  The service provided by the center server 200 includes a service that enables monitoring and control of equipment (including mainly the DC equipment 102 but also other equipment having a communication function) connected to the home network through the wide area network NT. is there. This service makes it possible to monitor and control devices connected to the home network using a communication terminal (not shown) having a browser function such as a personal computer, Internet TV, or mobile phone.

  The in-home server 116 has both functions of communication with the center server 200 connected to the wide area network NT and communication with equipment connected to the home network, and identification information on equipment in the home network ( Here, it is assumed that an IP address is used).

  The home server 116 enables monitoring and control of home devices through the center server 200 from a communication terminal connected to the wide area network NT by using a communication function with the center server 200. The center server 200 mediates between home devices and communication terminals on the wide area network NT.

  When monitoring and controlling home devices from a communication terminal, monitoring and control requests are stored in the center server 200, and the home device periodically performs one-way polling communication to monitor from the communication terminal. And receive control requests. With this operation, it is possible to monitor and control devices in the house from the communication terminal.

  Further, when an event that should be notified to the communication terminal, such as a fire detection, occurs in the home device, the home device notifies the center server 200, and the center server 200 notifies the communication terminal by e-mail.

  An important function among the communication functions with the home network in the home server 116 is the detection and management of devices constituting the home network. The home server 116 automatically detects a device connected to the home network by applying UPnP (Universal Plug and Play). The home server 116 includes a display device 117 having a browser function, and displays a list of detected devices on the display device 117. The display device 117 has a configuration with a touch panel type or an operation unit, and can perform an operation of selecting desired contents from options displayed on the screen of the display device 117. Therefore, the user (contractor or householder) of the home server 116 can monitor or control the device on the screen of the display device 117. The display device 117 may be provided separately from the home server 116.

  The in-home server 116 manages information related to device connection, and grasps the type, function, and address of the device connected to the home network. Accordingly, the devices in the home network can be operated in conjunction with each other. Information on the connection of the device is automatically detected as described above. In order to operate the device in an interlocking manner, the device itself is automatically associated with the attribute held by the device itself, and the home server 116 is configured as a personal computer. It is also possible to connect various information terminals and use the browser function of the information terminals to associate devices.

  Each device holds the relationship of the interlocking operation of the devices. Therefore, the device can operate in an interlocked manner without passing through the home server 116. By associating the linked operations for each device, for example, by operating a switch that is a device, it is possible to turn on or off the lighting fixture that is the device. In many cases, the association of the interlocking operations is performed within the subsystem, but the association beyond the subsystem is also possible.

  By the way, the DC power supply unit 101 basically generates DC power by power conversion of an AC power supply AC supplied from outside the house like a commercial power supply. In the configuration shown in the figure, the AC power source AC is input to an AC / DC converter 112 including a switching power source through a main circuit breaker 111 attached to the distribution board 110 as an internal unit. The DC power output from the AC / DC converter 112 is connected to each DC breaker 114 through the cooperative control unit 113.

  The DC power supply unit 101 is provided with a secondary battery 162 in preparation for a period in which power is not supplied from the AC power supply AC (for example, a power failure period of the commercial power supply AC). It is also possible to use a solar cell 161 or a fuel cell 163 that generates DC power. The solar battery 161, the secondary battery 162, and the fuel battery 163 are distributed power supplies with respect to the main power supply including the AC / DC converter 112 that generates DC power from the AC power supply AC. In the illustrated example, the solar cell 161, the secondary battery 162, and the fuel cell 163 include a circuit unit that controls the output voltage, and the secondary battery 162 includes a circuit unit that controls charging as well as discharging.

  Of the distributed power sources, the solar cell 161 and the fuel cell 163 are not necessarily provided, but the secondary battery 162 is preferably provided. The secondary battery 162 is charged in a timely manner by a main power source or other distributed power source, and the secondary battery 162 is discharged not only in a period in which power is not supplied from the AC power source AC but also in a timely manner as necessary. The cooperation control unit 113 performs charge / discharge of the secondary battery 162 and cooperation between the main power source and the distributed power source. That is, the cooperative control unit 113 functions as a DC power control unit that controls the distribution of power from the main power supply and the distributed power supply constituting the DC power supply unit 101 to the DC devices 102. Note that a configuration may be adopted in which the outputs of the solar cell 161, the secondary battery 162, and the fuel cell 163 are converted into AC power and used as input power of the AC / DC converter 112.

  Since the driving voltage of the DC device 102 is selected from a plurality of types of voltages depending on the device, the cooperative control unit 113 is provided with a DC / DC converter to convert the DC voltage obtained from the main power source and the distributed power source into the necessary voltage. Is desirable. Normally, one type of voltage is supplied to one subsystem (or DC device 102 connected to one DC breaker 114), but three or more wires are used for one subsystem. A plurality of types of voltages may be supplied. Alternatively, it is possible to adopt a configuration in which the DC supply line Wdc is of a two-wire type and the voltage applied between the lines is changed with time. The DC / DC converter may be provided in a plurality of dispersed manners like the DC breaker.

  In the above configuration example, only one AC / DC converter 112 is illustrated, but a plurality of AC / DC converters 112 can be arranged in parallel, and when a plurality of AC / DC converters 112 are provided. It is desirable to increase or decrease the number of AC / DC converters 112 that are operated according to the magnitude of the load.

  The AC / DC converter 112, the cooperative control unit 113, the DC breaker 114, the solar cell 161, the secondary battery 162, and the fuel cell 163 described above are provided with a communication function, and include a main power source, a distributed power source, and a DC device 102. It is possible to perform cooperative operations that deal with the load status. The communication signal used for this communication is transmitted in the form of being superimposed on the DC voltage in the same manner as the communication signal used for the DC device 2.

  In the above example, the AC / DC converter 112 is arranged in the distribution board 110 in order to convert the AC power output from the main breaker 111 into DC power by the AC / DC converter 112. On the output side, a branch breaker (not shown) provided in the distribution board 110 branches the AC supply line into a plurality of systems, and an AC / DC converter is provided on the AC supply line of each system to convert it into DC power for each system. You may employ | adopt the structure to do.

  In this case, since the DC power supply unit 101 can be provided for each floor or room of the house H, the DC power supply unit 101 can be managed for each system, and the DC device 102 that uses DC power and Since the distance of the DC supply line Wdc between the two is reduced, the power loss due to the voltage drop in the DC supply line Wdc can be reduced. Also, the main breaker 111 and the branch breaker are housed in the distribution board 110, and the AC / DC converter 112, the cooperative control unit 113, the DC breaker 114, and the home server 116 are housed in a separate board from the distribution board 110. Also good.

  Here, the hook ceiling 132 according to the present invention is used in the above-described home system and will be described in detail below.

(First embodiment)
A first embodiment will be described with reference to FIGS. As shown in FIGS. 2 to 4, the hook ceiling 132 of this embodiment is attached to the ceiling surface X (construction surface), and a pair of hook plug blades 51, 51 provided on the hook cap 50 are associated with the corresponding hook plug blade receivers. In order to hold the lighting fixture mechanically by hooking and engaging the portions 22 and 22 respectively, and to supply lighting power to the lighting fixture through the hook plug blades 51 and 51 and the hook plug receiving portions 22 and 22 It is used for.

  As shown in FIG. 3, the hook ceiling 132 includes a bottomed cylindrical container body 11 whose upper surface is open, and a substantially disk-shaped terminal cover 12 that is inserted into the container body 11 from the upper surface side of the container body 11. The terminal cover 12 is connected to the container body 11 by an assembly screw 13. In addition, the container 11 and the terminal cover 12 are molded articles each made of a thermosetting resin having flame retardancy.

  A pair of upright walls 14 (only one is shown in FIG. 3) project from the inner wall of the bottom wall of the container 11, and each screw provided on the terminal cover 12 with the terminal cover 12 placed on the upper surface of each upright wall 14. The terminal cover 12 is coupled to the body 11 by screwing the assembly screws 13 respectively inserted into the insertion holes 12c into the corresponding holes 14a of the standing wall 14. Here, the height dimension of the standing wall 14 is set so that the upper surface of the terminal cover 12 is positioned on the inner side of the upper surface of the container 11 in a state where the terminal cover 12 is placed.

  A cylindrical portion 11a having a substantially cylindrical shape is formed at two locations on the inner peripheral surface of the peripheral wall of the container body 11, and screw insertion holes 15 penetrating in the vertical direction of the container body 11 are formed in each cylindrical portion 11a. . Thus, when the vessel 11 is fixed to the ceiling surface X, a fixing screw (not shown) is inserted into the screw insertion hole 15 from the lower surface side of the vessel 11 and the tip of the fixing screw is connected to the ceiling surface. By screwing into X, the vessel body 11 is fixed to the ceiling surface X.

  Here, in the peripheral portion of the terminal cover 12, a portion corresponding to each tube portion 11a is provided with a notch portion 12a, and by fitting each notch portion 12a to the corresponding tube portion 11a, the body The terminal cover 12 is positioned with respect to 11.

  As shown in FIG. 3, the interior of the container body 11 is divided into two by a partition wall 16 protruding from the inner surface of the bottom wall of the container body 11, and two terminal storage chambers 17 are formed. The partition wall 16 has a separating piece 16a that bisects the inside of the container body 11, and a receiving piece 16c is integrally provided at the center in the longitudinal direction of the separating piece 16a, and is supported at both ends of the separating piece 16a. The rib 16b (only one is shown in FIG. 3) is provided integrally. The receiving piece 16c is set to have substantially the same height as that of the above-described standing wall 14, and supports the terminal cover 12 together with the standing wall 14.

  As shown in FIG. 4, a pair of substantially arc-shaped pairs of hooking plug blades 51, 51 of a hooking cap 50 are respectively inserted into the peripheral portion of the bottom wall of the container body 11 at a portion corresponding to each terminal storage chamber 17. The hooking blade insertion openings 19 and 19 are respectively opened. These hooking blade insertion holes 19 and 19 are formed symmetrically on substantially the same circumference centering on the center of the bottom wall of the container body 11, and each hooking blade insertion hole 19 is connected to other parts. Compared to FIG. 2, the wide portion 19a is formed with a narrow portion 19b which is another portion and has a narrow width. In addition, the hooking blade receiving part 22 electrically connected to the terminal metal fitting 20 mentioned later is arrange | positioned in the site | part inside corresponding to the narrow part 19b. Here, one of the hook plug blade insertion ports 19 and 19 is for the positive electrode and the other is for the negative electrode, and the hook plug blade insertion port 19 and the hook plug blade 51 are formed in an asymmetric shape to prevent erroneous connection. Is preferred.

  Here, in order to insert each hook plug blade 51 having a substantially L-shaped tip into the corresponding hook plug blade insertion opening 19, each hook plug blade 51 is inserted from the corresponding wide portion 19 a into the hook plug insertion hole. After being inserted into each 19, the hook cap 50 is rotated clockwise in FIG. 4, and the leading end of each hook plug blade 51 is moved to the position of the narrow portion 19b. At this time, the front end portion of each hook plug blade 51 is hooked and held by the corresponding hook plug blade receiving portion 22, and the hook cap 50 is attached to the body 11.

  The terminal fitting 20 is formed of, for example, a sheet metal, and is formed in a substantially U shape by a pair of terminal plates 20a that are in contact with the support ribs 16b and a connecting piece 20c that connects both the terminal plates 20a and 20a. Further, a caulking piece 20d disposed along the inner side surface of the bottom wall of the container body 11 projects from the lower edge of the connecting piece 20c.

  The connecting piece 20c is disposed so as to abut on the front end surface of the receiving piece 16c provided on each side surface of the separating piece 16a, and is maintained at a certain distance from the separating piece 16a. Further, the terminal plate 20a abuts on the separation piece 16a and abuts on both the support ribs 16b and 16b. That is, the terminal fitting 20 is disposed at a predetermined position in the container body 11 by the separation piece 16a, the support piece 16b, and the receiving piece 16c.

  In addition, a hooking blade receiving portion 22 is integrally formed on each connecting piece 20c, and each hooking blade receiving portion 22 is arranged along the corresponding hooking blade insertion port 19 respectively. Furthermore, a gap is provided between each hook plug blade receiving portion 22 and the bottom wall of the container 11, and in a state where the corresponding hook plug blade 51 is hooked and held by the hook plug blade receiving portion 22, The hooking blade 51 and the hooking blade receiving portion 22 are elastically contacted by the upward spring reaction force of the hooking blade receiving portion 22. In each hook plug blade receiving portion 22, an inclined surface is formed with a tip portion bent downward so that the hook plug blade 51 can easily ride on the portion facing the wide portion 19 a of the hook plug blade insertion port 19. .

  Here, each terminal plate 20a is opposed to the receiving piece 16c at a predetermined distance, and a lock spring 32 is disposed between each terminal plate 20a and the receiving piece 16c. The locking spring 32 is formed by bending one end of the belt plate into an S shape to form a contact piece 32a, and bending the other end into a J shape to form a locking piece 32b. 32a and the locking piece 32b are arrange | positioned so that the terminal board 20a may be opposed.

  Thus, when the power supply line L1 (DC supply line Wdc) from the ceiling surface X is connected to the terminal fitting 20, when the power supply line L1 is introduced from the side of the locking piece 32b through the electric wire insertion port 33 provided in the terminal cover 12. The core wire of the power line L1 is sandwiched between the contact piece 32a and the locking piece 32b and the terminal plate 20a. At this time, when the contact piece 32a comes into contact with the core wire of the power supply line L1, the power supply line L1 and the terminal fitting 20 are in an electrically connected state, and the leading edge of the locking piece 32b bites into the core wire of the power supply line L1. This prevents the power supply line L1 from being disconnected. As described above, the terminal portion to which the power supply line L1 is connected has a so-called quick connection terminal structure using the terminal plate 20a and the lock spring 32. Here, a terminal portion is constituted by the terminal plate 20 a and the lock spring 32.

  Incidentally, a pair of release buttons 31 for removing the connected power supply line L1 is provided in the body 11. The release button 31 is disposed so that a pair of adjacent lock springs 32 can be collectively operated via the separating piece 16a. In the present embodiment, the two release buttons 31 are disposed to face each other. Each release button 31 is composed of an operation portion 31a that is exposed to be able to protrude and retract through an operation opening portion 12b formed of a notch provided in the terminal cover 12, and a pair of pressing pieces 31b that are in contact with a part of the locking piece 32b. The pair of pressing pieces 31b located on both sides of the partition wall 16 are formed in a shape that is continuously and integrally connected by the operation portion 31a. Note that an insertion notch portion 20b is provided at a connection portion between the terminal plate 20a and the connection piece 20c of the terminal fitting 20, and the pressing piece 31b is inserted in response to the pressing operation of the release button 31. ing.

  Thus, when the operation unit 31a is pushed using a tool such as a flat-blade screwdriver from the state where the power line L1 is held, the pressing piece 31b pulls the locking piece 32b of the locking spring 32 away from the terminal plate 20a. Since it is bent in the direction, the locking piece 32b is detached from the power supply line L1, and the power supply line L1 is removed.

  Further, the hook ceiling 132 of this embodiment is for separating the high-frequency electric signal superimposed on the DC power source DC from the DC breaker 114 supplied via the terminal portion 52 from the power source line L1 as shown in FIG. Signal separation circuit 40, a signal conversion circuit 41 that converts the separated electrical signal into a signal for optical communication, and a lighting control that controls the lighting of the light emitting diode LD based on the signal converted by the signal conversion circuit 41 Circuit 42. Here, the terminal part 52 is comprised by the locking spring 32 and the terminal board 20a which were mentioned above.

  Note that a printed wiring board (not shown) on which the circuits described in FIG. 1 are formed is accommodated in the container body 11, and the terminal fitting 20 described above is soldered to the printed wiring board. Are electrically connected. The printed wiring board has a light emitting diode LD mounted on the surface facing the bottom wall of the container 11, and the light emitting diode LD has a pair of hooking blade insertion openings 19, 19 as shown in FIG. In the bottom wall of the container body 11 that is open, the light emitting surface is disposed on the inner side of the pair of hooking blade insertion ports 19 and 19 with the light emitting surface exposed to the outside (lower side).

  Here, a communication system using the hook ceiling 132 of this embodiment will be described with reference to FIGS. 1 and 2. This system is connected to a ceiling ceiling 132 attached to the ceiling surface X and a network NT made of, for example, the Internet, converts an electric signal input via the network NT into a high-frequency electric signal, and supplies it to the power line L1. In addition to superimposing, the signal converter 43 that separates and converts the high-frequency electric signal superimposed on the power supply line L1 from the power supply line L1 and outputs it via the network NT, and optical communication by the optical signal output from the light emitting diode LD. It is comprised with the receiver 44 (communication apparatus) to perform.

  The electric signal input via the network NT is converted into a high-frequency electric signal by the signal converter 43 and superimposed on the power supply line L1. The electric signal superimposed on the power line L1 is input to the hooking ceiling 132 as indicated by an arrow A in FIG. In the hook ceiling 132, the electric signal superimposed on the power supply line L1 is separated by the signal separation circuit 40, and the separated electric signal is converted into a signal for optical communication by the signal conversion circuit 41. The lighting control circuit 42 controls the lighting of the light emitting diode LD based on the signal converted by the signal conversion circuit 41. At this time, if the person P having the receiver 44 is in the communication area of the hook ceiling 132, the optical signal is received by the receiver 44 as shown by an arrow B in FIG. Here, the signal separation circuit 40 constitutes a first communication means, the lighting control circuit 42 and the light emitting diode LD constitute a second communication means, and the signal conversion circuit 41 constitutes a signal conversion means. The power transmission line L1 constitutes a signal transmission path, and the signal separation circuit 40, the signal conversion circuit 41, the lighting control circuit 42, and the light emitting diode LD constitute a communication interface. Note that the receiver may be a stationary type arranged in the communication area of the hook ceiling 132.

  In the hook ceiling 132 of the present embodiment, the communication interface (the signal separation circuit 40, the signal conversion circuit 41, the lighting control circuit 42, and the light emitting diode LD) is provided. It is possible to provide the hook ceiling 132 that enables communication, and it is not necessary to provide a separate communication interface as in the conventional example, so that an increase in cost can be suppressed. Furthermore, since the electrical signal is transmitted by separating the electrical signal from the power supply line L1 by the signal separation circuit 40, the number of signal lines for transmitting the electrical signal can be reduced and the number of construction steps can be reduced, resulting in cost reduction. Can be achieved. In addition, there is an advantage that the communication range of the receiver 44 can be easily limited by performing optical communication using the light emitting diode LD.

  In the present embodiment, the light emitting diode LD is provided in the hooking ceiling 132 and the electric signal superimposed on the power line L1 is described as an example of a transmitter that transmits to the receiver 44 that is a communication device. The catch ceiling 132 may be provided with a light emitting element and a light receiving element to serve as a transceiver. In this case, it goes without saying that a circuit configuration capable of transmitting and receiving a communication interface such as the signal separation circuit 40 is used.

  In this embodiment, the case of optical communication using the light emitting diode LD has been described. However, wireless communication using a wireless LAN, for example, may be used. In the case of optical communication, the light emitting diode LD may be hidden by attaching a lighting fixture to the hooking ceiling 132, and communication may not be possible. However, in the case of a wireless LAN, communication is performed even when the lighting fixture is attached to the hooking ceiling 132. It can be carried out.

  Furthermore, although the case where the Internet is used as the network NT has been described as an example in the present embodiment, the network NT is not limited to the Internet, and may be a LAN.

(Second Embodiment)
A second embodiment will be described with reference to FIGS. In the first embodiment, in the bottom wall of the body 11 where the pair of hooking blade insertion openings 19, 19 are opened, optical communication is performed to a portion inside the pair of hooking blade insertion openings 19, 19. Although the light-emitting diode LD is provided, in this embodiment, as shown in FIG. 8, an information modular jack MJ is provided instead of the light-emitting diode LD so that LAN communication can be performed. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 8, the hook ceiling 132 of the present embodiment is located on the inner side of the pair of hook plug insertion holes 19, 19 on the bottom wall of the container 11 where the pair of hook plug insertion holes 19, 19 open. An information modular jack MJ for LAN communication is provided at the site. The information modular jack MJ is an RJ-45 modular connector to which, for example, a twisted pair cable used in Ethernet (registered trademark) is connected, and has a substantially rectangular opening window 34. A shutter 35 including two door bodies 35 a and 35 b is provided along the bottom wall of the container body 11 so as to be freely opened and closed. As the shutter 35, a conventionally known shutter is used, and a detailed description thereof is omitted.

  Further, the hook ceiling 132 of the present embodiment is an electric device 47 connected to the information modular jack MJ based on the DC power source DC from the DC breaker 114 supplied via the terminal portion 52 as shown in FIG. A power supply circuit 45 (feeding means) for supplying DC power to (see FIG. 6) and a plurality of LAN connection terminals 49 to which the signal line L2 is connected are provided. As shown in FIG. 6, each LAN connection terminal 49 can perform LAN communication with other communication devices via the HUB 46 by, for example, Ethernet (registered trademark). Further, the DC power DC supplied from the power supply circuit 45 is supplied to at least a part of contacts (not shown) of the information modular jack MJ by a technique called PoE (Power over Ethernet). Here, PoE is a technology for supplying power through a category 5 or higher twisted pair cable used in Ethernet (registered trademark) wiring, such as 10BASE-T or 100BASE-TX (IEEE 802.3u). This is a standard (IEEE 802.3af) used in a network system that conforms to the standard of the standard. Each LAN connection terminal 49 and the corresponding contact are electrically connected.

  Next, a communication system using the hook ceiling 132 of this embodiment will be described with reference to FIGS. In this system, a hook ceiling 132 attached to the ceiling surface X, an electrical device 47 composed of, for example, a WEB camera connected to the information modular jack MJ via the LAN cable L3, and a plurality of communication devices are connected to each communication. It is comprised with HUB46 for performing communication between apparatuses. The DC power source DC supplied from the DC breaker 114 via the terminal unit 52 is supplied to some contacts by the power supply circuit 45, and each contact is supplied from another communication device (not shown) via the HUB 46. LAN signal is transmitted. The electrical equipment 47 connected to the information modular jack MJ is supplied with DC power from the hooking ceiling 132 via the LAN cable L3, and transmits a LAN signal. Here, a modular plug connection unit is configured by the information modular jack MJ, and a communication interface is configured.

  In the hook ceiling 132 of the present embodiment, a LAN signal can be transmitted through the LAN cable L3 connected to the information modular jack MJ and a DC power source DC can be fed, so that the electrical device 47 to which the LAN cable L3 is connected is connected. Since it is possible to supply DC power and it is not necessary to separately provide power supply means for supplying DC power to the electric equipment 47, it is possible to suppress an increase in cost. Furthermore, since the information modular jack MJ is provided at a position inside the pair of hooking blade insertion ports 19 and 19 that become an empty space on the bottom wall of the body 11, without increasing the external dimensions of the body 11. A hook ceiling 132 can be provided in which one of two types of connection means can be selected.

  In this embodiment, the case where the DC power source DC is supplied to a part of the contacts constituting the information modular jack MJ is described as an example. However, the DC power source may be supplied to all contacts.

  Next, the hook ceiling 132 shown in FIG. 7 shows another example of this embodiment, and separates the high-frequency electric signal superimposed on the power supply line L1 from the hook ceiling 132 shown in FIG. 5 described above. A DLC communication circuit 53 for superimposing an electric signal on the power supply line L1, and a signal conversion circuit 48 for mutually converting a signal (LAN signal) corresponding to Ethernet (registered trademark) and an electric signal used in DLC communication, Is provided, and the other configuration is the same as that of the hook ceiling 132 shown in FIG.

  Here, a communication system using the hook ceiling 132 will be described with reference to FIGS. As in the first embodiment, the electrical signal input via the network NT is converted into a high-frequency electrical signal by the signal conversion unit 43 and superimposed on the power supply line L1. The electric signal superimposed on the power line L1 is input to the hooking ceiling 132 as indicated by an arrow A in FIG. In the hook ceiling 132, as shown in FIG. 7, the electric signal superimposed on the power supply line L1 is separated by the DLC communication circuit 53, and the separated electric signal is converted into a LAN signal by the signal conversion circuit 48. A LAN signal is transmitted to each contact of the information modular jack MJ, and a DC power supply DC is supplied to a part of the contacts from the power supply circuit 45 by PoE. Here, the DLC communication circuit 53 constitutes a communication means, and the signal conversion circuit 48 constitutes a signal conversion means. In addition, a signal transmission path is configured by the power line L1.

  In the hook ceiling 132, the electric signal is transmitted by superimposing or separating the electric signal on the power supply line L1 by the DLC communication circuit 53. Therefore, the signal line for transmitting the electric signal can be reduced and the number of construction steps can be reduced. As a result, the cost can be reduced.

  In the first and second embodiments, the case of the hook ceiling 132 using the exposed type body 11 attached to the ceiling surface X as the body has been described as an example. For example, FIGS. As shown in FIG. 9, a hook ceiling 132 using an embedded type body 11 embedded in a ceiling may be used. In these cases as well, by providing the light emitting diode LD and the information modular jack MJ in the same manner as in the first and second embodiments, a hook ceiling 132 that can supply direct current power to a connected lighting fixture and enable electrical communication. Can be provided.

It is a block diagram which shows the hook ceiling of 1st Embodiment. It is the schematic of the system using the same as the above. It is an exploded perspective view same as the above. It is a perspective view same as the above. It is a block diagram which shows the hook ceiling of 2nd Embodiment. It is the schematic of the system using the same as the above. It is a block diagram which shows the other example same as the above. It is a perspective view same as the above. (A) is a perspective view which shows the other example of the hook ceiling of 1st Embodiment, (b) is a perspective view which shows the other example of the hook ceiling of 2nd Embodiment. It is an in-home system diagram using the hook ceiling of the first and second embodiments.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Container 19 Hooking blade insertion port 20a Terminal board 22 Hooking blade receiving part 32 Locking spring 40 Signal separation circuit (1st communication means)
41 Signal conversion circuit (signal conversion means)
42 lighting control circuit 50 hook cap 51 hook plug blade L1 power line LD light emitting diode X ceiling surface (construction surface)
132 Catch ceiling

Claims (6)

  The container so as to correspond to each of the container body disposed on the construction surface, the terminal portion provided inside the container body for connecting the power line introduced from the construction surface side, and the plurality of hooking blades of the hooking cap. A plurality of hooking blade insertion holes opened on the lower surface of the body, and each hooking blade inserted in one end of the hooking blade insertion port provided in the container corresponding to each hooking blade insertion port The transmission signal transmitted through the signal transmission path on the construction surface side and the external communication device are exchanged between a plurality of hooking blade receiving portions for hooking and holding the hooking blade when moving in the other end direction. A hooking ceiling characterized by comprising a communication interface for   The signal transmission path is also used by the power supply line, and the communication interface is configured by a radio signal and a first communication unit that performs communication via the power supply line by superimposing or separating a high-frequency electrical signal on the power line 2. The hook ceiling according to claim 1, further comprising second communication means for performing communication, and signal conversion means for converting a signal provided between the first communication means and the second communication means. .   The communication interface includes a modular plug connection portion to which a modular plug for LAN is detachably connected, and the modular plug connection portion includes a plurality of contacts to which a plurality of contacts of the modular plug are electrically connected. The hook ceiling according to claim 1, further comprising: a power feeding unit that feeds a DC power supplied via the terminal portion to at least some or all of the plurality of contacts.   The said modular plug connection part is provided in the site | part inside the said hooking plug blade insertion port in the outer surface of the said container body which the said several hooking blade blade insertion ports open. Hook ceiling.   5. A plurality of LAN connection terminals to which signal lines forming the signal transmission path are connected, and each LAN connection terminal is electrically connected to the corresponding contact, respectively. The hook ceiling according to any one of claims.   The signal transmission path is also used as the power line, and communication means for performing communication via the power line by superimposing or separating a high-frequency electric signal on the power line, and the electric signal separated by the communication means The hook ceiling according to any one of claims 3 and 4, further comprising signal conversion means for performing signal conversion with a LAN signal input via the modular plug.

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