CN1854650A - Storage cabinet - Google Patents

Abstract

The invention discloses a storage cabinet. Even a pull-out door has the same opening function or opening assist function as a swing-type door. And when the opening of the door is suspended within the energizing distance range within which the electromagnetic device energizes in the opening direction of the door, the door is not placed in a half-open state. The storage cabinet has a storage product container that moves in and out of the vegetable compartment (storage compartment) (7) in a pull-out manner with the parallel clutch movement of the vegetable compartment door (door) (3) relative to the refrigerator main body (storage cabinet main body) (1), The pull-out handle (23) provided on the vegetable compartment door (3), the operation response mechanism (27) that operates in response to the operation of the handle (23), and the handle (27) provided on the refrigerator main body (1) An electromagnet (electromagnetic device) (12), and a detector (32). By operating the handle (23), the detector (32) works by operating the response mechanism (27). According to the operation of the detector, the electromagnet (12) is excited to make the vegetable compartment door (3) leave the refrigerator main body (1) .

Description

storage cabinet

technical field

The invention relates to a storage cabinet with a pull-out door and a storage container. Furthermore, this invention relates to the storage cabinet provided with the opening assist function of a door.

Background technique

Conventionally, in storage cabinets, including refrigerators, a storage cabinet main body having storage rooms such as a refrigerating room, a freezing room, and a vegetable room is provided with doors for opening and closing storage entrances and exits of the storage rooms. Among such doors, the door for the refrigerator room and the like is a pivoting door that is pivotally supported on the main body of the storage cabinet on the right or left side, and the doors for the freezer room and the vegetable room are pull-out types in short, and they are divided into one unit. It is integrally installed on a pull-out storage product container, and can move forward and backward relative to the main body of the storage cabinet in parallel.

Furthermore, there is provided a storage cabinet in which a refrigerator door is opened by a prescribed amount whenever a user touches a specific portion thereof.

Then, among such storage cabinets, in recent years, there has been provided a door for refrigerators, that is, a swing door that opens by a predetermined amount when a user touches a specific portion thereof. In this case, specifically, a contact part that the user touches and a detector that detects the user's contact with the contact part are provided on the door. The control device and the electromagnetic device excited by the control device, especially the detector and the control device are connected by lead wires passing through the pivot support part of the door. In this structure, as long as the user touches the contact part, the detector detects the contact, and sends the detection signal to the control device through the lead wire. According to the detection signal, the control device energizes the electromagnetic device to activate it, so that the electromagnetic device makes The door opens the specified amount.

[Patent Document 1] JP-A-1-150786

[Patent Document 2] JP-A-2000-168559

In the above-mentioned existing storage cabinet, its door is supported on the main body of the refrigerator by a pivot, and the electrical components on the side of the door, that is, the detector, and the electrical components on the side of the refrigerator main body, that is, the control device are connected by the lead wires passing through the pivot support part. to be connected.

Correspondingly, the pull-out type door which is the door for a freezer compartment, a vegetable compartment, etc. has the same structure, and it can be considered that it has the same function.

However, the pull-out type door moves forward and backward in parallel with respect to the storage cabinet main body, and there is no part pivotally supported by the refrigerator main body. Therefore, the electrical components on the door side cannot be connected to the electrical components on the refrigerator main body side through the lead wires passing through the pivot support portion. As a result, it is difficult to have the same opening function or opening assist function as the door for the refrigerator.

Furthermore, in the case of the above-mentioned existing storage cabinet, when the refrigerator compartment door is opened by the electromagnetic device based on the user's contact with the contact portion of the refrigerator compartment door, for example, the door hits the user's body, etc., the door Stop within the range of the energizing distance in the opening direction of the door given by the electromagnetic device. Promptly sometimes the door does not open to the maximum distance of the door-opening enabling distance given by the electromagnetic device and stops halfway.

At this time, in the case of the above-mentioned conventional storage cabinet, the door may continue to be kept open, that is, the user sometimes does not realize that the door is half-opened, and the door is placed in the half-open state, and as a result, the state of the stored goods may be deteriorated.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a storage cabinet having the same opening function or assisting opening function as a swing-type door even with a pull-out type door.

Furthermore, the present invention has been accomplished in view of the above-mentioned circumstances, and its purpose is to provide a device that prevents the door from being placed in a half-open state when the opening of the door is suspended within the range of the energizing distance of the door in the opening direction given by the electromagnetic device. Storage cabinets.

Contents of the invention

In order to achieve the above object, the storage cabinet of the present invention is provided with: a storage cabinet main body having a storage room; the door of the storage product entrance and exit of the storage room is opened or closed in a manner of parallel clutch movement relative to the storage cabinet main body; a storage product container that is taken out or put into the storage room by a pull-out action accompanying the movement of the door; a handle for pulling out provided on the door, and an operation response mechanism that operates in response to the operation of the handle; And the electromagnetic device and the detector provided on the main body of the storage cabinet, the operation response mechanism that operates in response to the operation of the handle is used to make the detector work, and the electromagnetic device is excited according to the action of the detector , to separate the door from the cabinet main body (the first aspect of the present invention).

Furthermore, in order to achieve the above object, the storage cabinet of the present invention includes: a storage cabinet main body having a storage room; a door for opening and closing the storage product entrance and exit of the storage room; an operation detection unit; an electromagnetic device that acts in response to the detection of the operation detection unit to energize the door in an opening direction; The door closing energizing unit that energizes the door in the closing direction, within the range of the distance that the electromagnetic device energizes in the door opening direction, when the opening of the door is suspended, the door is activated by the door closing energizing unit. closed under action (the fourth aspect of the present invention).

According to the above-mentioned unit, even if it is a pull-out door in which the part pivotally supported by the main body of the storage room does not exist, it can be provided without contemplating the connection between the electrical parts on the door side and the electrical parts on the side of the storage cabinet main body. Desired door opening function or door opening assistance function based on the electromagnetic system.

Furthermore, when the above unit is adopted, when the opening of the door within the energizing distance range given by the magnetic device in the door opening direction is suspended, the door is closed under the action of the door closing energizing unit, so that the door can not be placed in a half-open position. state.

Description of drawings

Fig. 1 is a partially omitted longitudinal side view showing a main part of a first embodiment of the present invention.

Fig. 2 is a front view of the refrigerator as a whole.

Fig. 3 is a partial perspective view showing the relationship between the vegetable compartment door and the product container, and the relationship between the permanent magnet and the electromagnet, viewed obliquely from behind.

Fig. 4 is a partial perspective view showing the relationship between the vegetable compartment door and the product container, and the relationship between the permanent magnet and the electromagnet, viewed obliquely from the front.

FIG. 5 is an enlarged perspective view of a portion X in FIG. 4 .

6 is a partial perspective view showing the relationship between the vegetable compartment door and the vegetable compartment, and the relationship between the permanent magnet and the electromagnet.

Fig. 7 is a partial perspective view showing the relationship among the vegetable compartment door, the operation response mechanism, and the detector.

Fig. 8 is a diagram corresponding to a part of Fig. 1 showing a second embodiment of the present invention.

Fig. 9 is a perspective view showing main parts of a third embodiment of the present invention.

Fig. 10 is a vertical side view of the above-mentioned main part.

Fig. 11 is a partially omitted side sectional view showing a main part of a fourth embodiment of the present invention.

Fig. 12 is an overall front view of the refrigerator.

Fig. 13 is a perspective view of main parts.

Fig. 14 longitudinal side view of the electromagnet.

15 is a vertical side view of the operation detection switch part, (a) is a view of the closed state of the door, (b) is a view of the operating state for opening the door, and (c) is a view of the open state of the door.

Fig. 16 is a block diagram of the electrical structure.

Fig. 17 is a wiring diagram of the driving circuit.

Fig. 18 is a flowchart for explaining the operation of the main part.

Fig. 19 is a diagram corresponding to Fig. 15 showing a fifth embodiment of the present invention.

Fig. 20 is a view corresponding to Fig. 11 showing a sixth embodiment of the present invention.

Label description

In the accompanying drawings, 1 is the main body of the refrigerator (main body of the storage cabinet), 3 is the door (door) of the vegetable compartment, 8 is the storage product container, 11 is the permanent magnet, 12 is the electromagnet (electromagnetic device), 21 is the guide rail, and 21a is the guide rail 23 is a handle, 27 is an operation response mechanism, 32 is a detector, and 41 is a permanent magnet unit. 101 is a refrigerator main body (storage cabinet main body), 103 is a vegetable room door (door), 107 is a vegetable room (storage room), 107a is a storage product entrance and exit, 108 is a storage product container, 109 is a container supporting member, 111, 112 are Permanent magnet, 114 is an electromagnet (electromagnetic device), 120a is the rear end of the guide rail (door closing imparting unit), 121 is a caster, 123 is a handle, 124 is a moving member, 128 is an operation detection switch (operation detection unit), 129 130 is a control device (control unit, door opening operation frequency detection unit), 141 is a magnetic switch (operation detection unit), 142 is a permanent magnet, and 152 is a movable magnetic core (push rod) , 154 is a solenoid (electromagnetic device).

Detailed ways

Hereinafter, a first example (first embodiment) in which the present invention is applied to a refrigerator will be described with reference to FIGS. 1 to 7 .

First, the front of Fig. 2 shows the storage cabinet, that is, the refrigerator as a whole. On the main body of the storage cabinet, that is, the refrigerator main body 1, the refrigerator compartment door 2, the vegetable compartment door 3, the ice-making compartment door 4, and the switch compartment door are sequentially arranged from top to bottom. 5, and freezer door 6. Therefore, in the refrigerator main body 1, in addition to the vegetable compartment 7 shown in FIGS. 1 and 6 described later, there are (not shown) a refrigerator compartment, a vegetable compartment 7, an ice making The room, the switching room, and the freezing room are used as storage rooms, and the refrigerator room door 2, the vegetable room door 3, the ice making room door 4, the switching room door 5, and the freezing room door 6 are used to open and close the respective front stores of these storage rooms. Portal (Fig. 1 only shows the storage product port 7a of the vegetable compartment 7).

In this case, in detail, the refrigerator compartment door 2 is a swing door pivotally supported by the storage compartment main body 1 on one side of the right side or the left side (the right side in the illustrated example), and the vegetable compartment door 3, The ice-making compartment door 4, the switch compartment door 5, and the freezer compartment door 6 are respectively integrally arranged in a pull-out storage product container (except for the vegetable room storage product container 8 shown in Fig. 3 and Fig. 4 below). , other containers are omitted from the illustration), and move in parallel with respect to the main body 1 of the storage cabinet, that is to say, a pull-out door.

Here, FIGS. 3 and 4 show the vegetable compartment door 3 and the storage product container 8 for the vegetable compartment. According to this Fig. 3 and Fig. 4, it can be clearly understood that the left and right sides of the back side of the vegetable compartment 3 have, for example, a solid container support member 9 made of metal, on which a storage product container 8 for the vegetable compartment is installed and suspended, In this way, the vegetable compartment 3 and the storage product container 8 for the vegetable compartment are integrated by the container supporting member 9 . In addition, a gasket 10 incorporating a permanent magnet (not shown) is attached to the edge portion of the back surface of the vegetable compartment door 3 .

Furthermore, as also shown in FIG. 5 , permanent magnets 11 are attached to the respective rear rear ends of the container supporting members 9 . Corresponding to this, 12 is an electromagnetic device corresponding to a permanent magnet, and in this case represents an electromagnet. As shown in FIG. The left and right sides of the depth portion (only the electromagnet on the left side is shown in the figure), that is, are arranged on the left and right sides of the depth portion of the vegetable compartment 7, in short, are arranged on the refrigerator main body 1.

In detail, as shown in FIG. 1 , the electromagnet 12 is formed by, for example, a U-shaped magnetic core 14 and an upper side portion and a lower side portion wound on the magnetic core 14 via bobbins 15 and 16, respectively. The coils 17, 18 are installed in the case 19, and the front end of the upper side and the front end of the lower side of the magnetic core 14 function as N and S magnetic poles, respectively. In addition, the electromagnet 12 can adjust the magnetic force by changing the voltage applied to the coils 17, 18. As shown in FIG. part, that is, the operation panel 20.

Then, on the left and right sides of the portion formed by the vegetable compartment 7 of the inner container 13, guide rails 21 are formed respectively (only the guide rail on the left side is shown in Fig. 1 and Fig. 6 ), on which the The caster 22 on the lower side of the rear end of the container support member 9, on the other hand, caster wheel fixtures (not shown) are set at the front portion of the guide rail 21, on which the container support member 9 can be placed in a relatively rolling manner, so as to use The guide rail 21 guides the guide container support member 9 and even the storage product container 8 for the vegetable room to be installed in the vegetable room 7 in a front and back manner to form the pull-out type. And as a result, the vegetable compartment door 3 also becomes the said pull-out type.

Here, the rear end portion 21a of the guide rail 21 is inclined backward and downward, so that the container support member 9 is dropped together with the casters 22 and locked on the guide rail 21, thereby fixing the storage product container 8 for the vegetable room on the innermost side. In its containment position, this is called a "drop-in" configuration.

Also, when the storage product container 8 for the vegetable room is in the storage position, the magnetic pole portion of the permanent magnet 11 is in contact with the upper and lower front ends of the magnetic core 14 of the electromagnet 12 , that is, the magnetic pole portion.

FIG. 7 shows pull-out handle 23 , recessed portion 24 , and support stand 25 provided in the central portion of the upper front surface side of vegetable compartment 3 . Among them, as shown in FIG. 1 , a support stand 25 is assembled to the vegetable compartment door 3 , and a handle 23 having an inverted "L" shape in section is rotatably supported back and forth by a support shaft 26 provided by the support stand 25 .

Moreover, the support table 25 also constitutes an operation response mechanism 27, which uses the shaft 28 shown in FIG. The position corresponding to the upper rear end 23a of the above-mentioned handle 23 has a receiving portion 29a, and the permanent magnet 30 is installed on the rear end so as to protrude toward the rear of the vegetable compartment door 3 .

Moreover, Fig. 7 and Fig. 1 show the front partition 31 that separates the storage entrance 7a of the vegetable compartment 7 in the refrigerator main body 1 from the storage entrance 7a of the refrigerator compartment above it, and the detector 32 is assembled in on this partition. The detector 32 is constituted by a reed switch in this case, and the permanent magnet 30 attached to the above-mentioned lever 29 is made to correspond thereto via a magnetically permeable film 33 .

In addition, although not shown, the refrigerator main body 1 is provided with a control device such as a microcomputer that functions to energize the electromagnet 12 based on the detection signal output from the detector 32 .

Next, the operation of the refrigerator configured as described above will be described.

First, when the vegetable compartment door 3 is closed, the casters 22 of the container support member 9 are fixed at the innermost storage position by using the above-mentioned "drop-in" structure. In addition, at this time, the control device not shown in the figure also energizes and excites the electromagnet 12 so that the magnetic poles different from the magnetic poles of the corresponding permanent magnets 11 are displayed on the magnetic poles at the front end of the upper side part and the front end of the lower side part of the magnetic core 14. . Therefore, an attractive force is generated between the electromagnet 12 and the permanent magnet 11, so that the permanent magnet 11 and even the container support member 9 are pulled to the rear. The product container 8 is fixed at the innermost storage position.

Furthermore, at this time, the gasket 10 of the vegetable compartment door 3 is closely connected to the edge portion (including the front partition 31) of the storage product inlet and outlet 7a of the vegetable compartment 7 in the refrigerator main body 1, and at the same time, the built-in magnet is used to attract and hold it. The close contact state.

Again, if starting from such a state, the user puts his hand on the handle 23 of the vegetable compartment door 3 and pulls it, then the handle 23 rotates forward as shown by arrow A in FIG. Push the receiving portion 29a of the control lever 29 of the operation response mechanism 27 from the upper rear end 23a to the rear, like this, as shown by arrow B in Figure 1 and Figure 7, the control lever 29 rotates rearward with the axis 28 as the center, and the installation Since the permanent magnet 30 at the rear end is close to the detector 32, the detector 32 operates, and accordingly, the control device (not shown) energizes the electromagnet 12 in a direction opposite to the above to activate it.

Therefore, at this time, the electromagnet 12 exhibits the same pole as that of the corresponding permanent magnet 11 on each magnetic pole at the front end of the upper side portion and the front end of the lower side portion of the magnetic core 14, thereby generating a repulsive force. Therefore, the permanent magnet 11 and the container supporting member 9 having the permanent magnet 11 attached to the rear end thereof are pushed forward along with the storage product container 8 for the vegetable compartment and the vegetable compartment door 3 . Due to this pushing, the caster 22 is out of the above-mentioned “drop-in” configuration, so that the packing 10 is away from the edge of the storage product entrance of the vegetable compartment 7 .

Therefore, the user continues to pull the vegetable compartment door 3 with the hand resting on the handle 23 thereafter, so that the stored product container 8 can be pulled out together with the vegetable compartment door 3 as required.

And, in order to make the refrigerator play a role as mentioned above, but in the refrigerator adopting this structure, the electrical parts such as the electromagnet 12 and the detector 32 are only arranged on the refrigerator main body 1, and only the handle 23 and A mechanical component such as an operation response mechanism 27 . Therefore, even if it is a pull-out type vegetable compartment door 3 that is pivotally supported on the refrigerator main body 11, there is no need to make a connection between the electrical components on the vegetable compartment door 3 side and the electrical components on the refrigerator main body 1 side. Connect and think hard, just can make it possess the door-opening function or door-opening auxiliary function that utilizes above-mentioned electromagnet 12 to open the door that it wishes.

Again, in this case, it is not necessary to connect the electrical components on the side of the vegetable compartment door 3 with the electrical components on the side of the refrigerator main body 1, thereby also eliminating the need for lead wires and connection operations for this connection, which contributes to cost reduction. .

In addition, in the case of the refrigerator of this configuration, the electromagnet 12 pulls the vegetable compartment door 3 to the side of the refrigerator main body 1 at normal times except when the vegetable compartment door 3 is pulled out, so that the stored product container 8 is fixed. In the storage position, the vegetable compartment door 3 can be more reliably stayed in the closed state, and the stored product container 8 can be more reliably stayed in the storage position.

In addition, in the case of the refrigerator of this structure, the electromagnet 12 can adjust the magnetic force that makes the vegetable compartment door 3 leave the refrigerator main body 1, so that when the user wants to open the vegetable compartment door 3 (to pull out the storage product container 8) The feeling of light and heavy (due to the difference of the total mass of the storage product that packs into storage product container 8 is different), can obtain the most suitable door-opening force that electromagnet 12 produces.

Furthermore, in this case, the weight sensor can also be used to detect the weight of the storage product container 8, so that the electromagnet 12 can automatically adjust the magnetic force that keeps the vegetable compartment door 3 away from the refrigerator main body 1.

Corresponding to the above-mentioned situation, Fig. 8～Fig. 10 have shown the 2nd and the 3rd embodiment (the 2nd and the 3rd embodiment) of the present invention, the part identical with the 1st embodiment is marked with the same reference numeral, and its description is omitted, Only the different parts are explained.

[Second embodiment]

In the second embodiment shown in Fig. 8, the rear end portion 21b of the guide rail 21 is not configured to be inclined like the above-mentioned rear end portion 21a, and the entire guide rail 21 is made into a flat shape with the same height, that is, the entire guide rail 21 is made without The above "falls into" part of the shape.

As mentioned above, the electromagnet 12 pulls the vegetable compartment door 3 down to the refrigerator main body 1 side at ordinary times except that the vegetable compartment door 3 is pulled out, so that the stored product container 8 is fixed at the storage position. Make the vegetable compartment door 3 stay in the closed state more reliably, so that the storage product container 8 can be fixed on the storage position more reliably, so that the guide rail 21 of the storage product container 8 that can be taken out or put in is not used. The structure of the portion where the storage container 8 falls into the storage position prevents the user from pulling out the vegetable compartment door 3 (storage compartment container 8 ) against it, so that the labor of the user can be further reduced.

[Third embodiment]

In the third embodiment shown in Fig. 9 and Fig. 10, the permanent magnet unit 41 is arranged on the left and right sides or one side of the back side of the vegetable compartment door 3, instead of the above-mentioned permanent magnet 11, and the electromagnet 12 The refrigerator main body 1 is provided on the front part of the two left and right inner side surfaces of the part surrounding the vegetable compartment 7 of the inner container 13 or the front part of one side thereof.

In addition, the permanent magnet unit 41 has a structure in which permanent magnets 43 and 44 are provided at the upper and lower ends of a yoke 42 made of a magnetic material such as iron, and are installed in a case 45 .

Even in this case, the same operational effects as those described above can be obtained.

Furthermore, in addition to this, the electromagnetic device exemplified by the electromagnet 12 is not limited to the device that pushes the vegetable compartment door 3 open with the repulsive magnetic force of the permanent magnet 11, and can also have, for example, a movable magnetic core. This movable magnetic core is released the device of vegetable compartment door 3.

In addition, if such an ejecting member is used, an electric motor or the like may be used instead of the electromagnet 12 as the electromagnetic means.

Also, the detector 32 may be a micro switch.

Moreover, as the whole storage cabinet, it may be a thermostat, a normal temperature cabinet, etc. other than a refrigerator.

In addition, the pull-out type door exemplified by the vegetable compartment door 3 may be the ice maker door 4, the switch compartment door 5, the freezer compartment door 6, etc. other than the vegetable compartment door 3.

Next, a fourth embodiment (fourth embodiment) in which the present invention is applied to a refrigerator will be described with reference to Figs. 11 to 18 .

First, Fig. 12 shows the storage cabinet, that is, the whole refrigerator, on the main body of the storage cabinet, that is, the refrigerator main body 101, and the refrigerator compartment door 102, the vegetable compartment door 103, the ice-making compartment door 104, and the switch compartment door are sequentially arranged from top to bottom. 105, and freezer door 6. Therefore, in the refrigerator main body 101, in addition to the vegetable compartment 107 shown in FIG. 13 and FIG. Exist in order from top to bottom as storage room, refrigerator room door 102, vegetable room door 103, ice-making room door 104 and switching room door 105, and freezer room door 106 open and close the store product entrance and exit ( FIG. 13 and FIG. 11 show only the stored product access 107 a) of the vegetable compartment 7 .

In this case, in detail, the refrigerator compartment door 102 is a swing-type door pivotally supported by the refrigerator body 101 on the right side or the left side (the right side in the illustrated example), and the vegetable compartment door 103, The ice-making compartment door 104, the switch compartment door 105, and the freezer compartment door 106 are integrally provided on the pull-out storage product container (Fig. It moves forward and backward in parallel with respect to the refrigerator main body 101, and is a pull-out type anyway.

Here, the structure of the vegetable compartment 107 is shown in FIG.13 and FIG.11. In the vegetable compartment 107, there are the aforementioned vegetable compartment door 103 and storage container 108, and the storage container 108 is accommodated and hung on a strong container support member made of, for example, metal, mounted on the upper part of the left and right sides of the back of the vegetable compartment door 103. 109, in this way, the vegetable compartment 103 and the storage product container 108 are integrated by the container supporting member 109. In addition, a gasket 110 incorporating a permanent magnet (not shown) is attached to an edge portion of the back surface of the vegetable compartment door 103 .

In addition, permanent magnets 111 and 112 are attached to the lower parts of the left and right sides of the back of the vegetable compartment 103 so as to be slightly closer to the center than the packing 110 described above. The permanent magnets 111, 112 are fixed on the upper and lower sides of a yoke 113 made of magnetic materials such as iron, as shown in FIG. The rear end of the lower permanent magnet 112 forms a magnetic pole S.

Corresponding to this, 114 is an electromagnetic device corresponding to the permanent magnets 111, 112, and in this case represents an electromagnet. Specifically, as shown in FIG. and coils 118, 119 wound on the upper and lower sides of the magnetic core 115 via bobbins 116, 117, respectively. Furthermore, fuses 137, 138 are added to the coils 118, 119, respectively.

But this electromagnet 114 is shown in Figure 11 and Figure 13, is arranged in the front part of the vegetable compartment 107 of refrigerator main body 101, wherein also is arranged in the front part corresponding to the permanent magnet 111,112 that above-mentioned vegetable compartment door 103 has. The lower part of the left and right sides.

Here, guide rails 120 are respectively formed on the upper parts of the left and right inner side surfaces of the vegetable compartment 107 (only the guide rails on the left side surface are shown by dotted lines in FIG. The caster 121 freely installed on the lower side of the rear end of the container support member 109, on the other hand, a caster fixture (not shown) is provided at the front of the guide rail 120, and the container support member can be placed on the caster fixture in a relatively rolling manner. 109, in this way, the container support member 109 and even the storage product container 8 for the vegetable room can be stored in the vegetable room 107 in a manner guided by the guide rail 120 to form the pull-out type. And as a result, the vegetable compartment door 103 also becomes the said pull-out type.

In addition, the rear end portion 120a of the guide rail 120 is inclined in such a way that it gradually descends backwards, so that the container supporting member 109 falls and is locked on the guide rail 120 together with the casters 121, thereby fixing the storage product container 108 for the vegetable room. In the innermost storage position, this is called a "drop-in" structure, and functions as a door-closing means that energizes the vegetable compartment door 103 in the closing direction.

Also, when the storage product container 108 for the vegetable compartment is in the above-mentioned storage position, the magnetic pole portions of the permanent magnets 111, 112 are opposed to the upper end front end and the lower end front end of the magnetic core 115 of the electromagnet 114, that is, the magnetic pole portions. And contact.

In addition, in the central portion on the front surface side of the upper portion of the vegetable compartment 103, a recessed portion 122 for pulling out and a handle 123 are provided, and a moving member 124 is provided at the same time. Wherein, the handle 123 is supported by the vegetable compartment door 103 so as to be rotatable back and forth in the middle part up and down through the support shaft 125, and the recessed part 122 is opposed to the lower part thereof. In addition, the moving member 124 is located in the vegetable compartment door 103 so as to be movable back and forth, and its front end is connected to the top of the handle 123 by a coupling pin 126 , and its rear end protrudes toward the rear of the vegetable compartment door 103 . 11 and 13 show the front partition 127 separating the storage entrance of the vegetable compartment 107 of the refrigerator main body 101 from the storage entrance of the refrigerator compartment above it, and the operation detection switch 128 is incorporated into the partition. The back side of the central part of the board. This operation detecting switch 128 is made up of microswitch at this moment, specifically as shown in Fig. The moving member 124 presses the button 128b, so that the contacts in the switch main body 128a are turned on and operated.

Here, when the user pulls the handle 123 forward as shown by arrow A in FIG. 15 (b), the button 128b of the above-mentioned operation detection switch 128 is pressed, and the operation of the handle 123 is an operation for opening the vegetable compartment door 103. The action of the operation detection unit of the operation.

In addition, when the handle 123 of the said vegetable compartment door 103 of the operation detection switch 128 is not operated (normal state), as shown in FIG.15(a), the button 128b is separated from the moving member 124. In addition, as shown in FIG. 11 and FIG. 13 , a door switch 129 is incorporated in the front portion of the vegetable compartment 107 on the refrigerator main body 101 at a lower position than the right electromagnet 114 . The door switch 129 is also composed of a micro switch at this time, and its button 129b protrudes forward from the switch main body 129a and the refrigerator main body 101, and the button 129b is pressed by the vegetable compartment door 103 when it is closed, so that the inside of the switch main body 129a Contacts not shown are connected and operated. Therefore, this door switch 129 functions as a door closing detecting means that detects closing of the vegetable compartment door 103 .

Next, FIG. 16 shows a control device 130 composed of, for example, a microcomputer. The control device 130 functions as a control unit for controlling the operation of the electromagnet 114 , and only devices related to this function are represented and shown in FIG. 16 . That is, the detection signals are respectively input into the control device 130 by the operation detection switch 128 and the door switch 129, and the control device 130 provides drive control signals to drive the two electromagnets 114 according to these inputs and a pre-stored control program. circuit 131.

FIG. 17 specifically shows the drive circuit 131. By connecting the relay contact 133 operated by the control device 130 in series with a resistor 134 of about 1 [Ω], the commercial power supply E is connected between the AC input terminals of the rectifier circuit 132, so that A smoothing capacitor 135 , a resistance 136 of several hundred [KΩ], and a series circuit between the respective coils 118 and 119 of the two electromagnets 114 and the respective thermal fuses 137 and 138 thereof are connected in parallel.

Next, the operation of the refrigerator configured as described above will be described.

First, when the vegetable compartment door 103 is closed, the casters 121 of the container support member 109 are fixed at the innermost storage position by using the "drop-in" structure as the above-mentioned door closing imparting means. In addition, at this time, the sealing gasket 110 of the vegetable compartment door 103 is in close contact with the edge portion (including the front partition 127) of the storage product entrance 107a of the vegetable compartment 107 on the refrigerator main body 101, and the built-in magnet is attracted to maintain this close contact. status. Also, at this time, the door switch 129 performs a closing action by closing the vegetable compartment door 103 to detect the closing of the vegetable compartment door 103 .

If starting from such a state, the user puts his hand on the handle 123 of the vegetable compartment door 103 and pulls it, then the handle 123 rotates forward as shown by the arrow A in FIG. When the moving member 124 is pushed backward, the moving member 124 presses the button 128a of the operation detection switch 128 as described above, thereby closing and operating the operation detection switch 128 to detect an operation for opening the vegetable compartment door 103 .

In this way, the control device 130 judges that the operation detection switch 128 has been operated (the operation for opening the vegetable compartment door 103 is completed), and at the same time, it has been judged that the door switch 129 has been operated (the vegetable compartment door 103 is closed) [step S1, S2] Based on the result, the electromagnet 114 (coils 118, 119) is energized (step S3).

Then, the magnetic poles of the upper end and the lower end of the magnetic core 115 in the electromagnet 114 exhibit the same polarity as the magnetic poles of the opposing permanent magnets 111 and 112 as shown in FIG. 14 , thereby generating repulsive force. Utilizing this repulsive force, the permanent magnets 111, 112, and even the vegetable compartment door 103 mounted on the back are energized in the door-opening direction as the storage container 108 is pushed forward through the container support member 109. By means of this, the container supporting member 109 and the casters 121 are disengaged from the above-mentioned "drop-in" configuration, and the sealing gasket 110 is separated from the edge of the storage product inlet and outlet of the vegetable compartment 107 .

Here, the energization of the electromagnet 114 is limited to a predetermined time, specifically, for example, within about 1 second (steps S4, S5). With this, the vegetable compartment door 103 is energized in the door opening direction only to the distance of 5-10 mm required for the above-mentioned container support member 109 and casters 121 to come out of the above-mentioned "drop-in" configuration.

Therefore, at this time, if the vegetable compartment door 103 is in the range of the energizing distance due to reasons such as the door touching the user's body, the opening of the vegetable compartment door 103 is stopped halfway, and the casters 121 of the container support member 109 are "closed" "fall into" configuration and return to the innermost storage position, by means of this, the vegetable compartment door 103 can also return to the above-mentioned closed state.

Furthermore, although not shown, the control device 130 also functions as a door opening operation frequency detection unit that calculates the number of times the vegetable compartment door 103 is opened per unit time based on the operation frequency of the operation detection switch 127, and detects the door opening operation frequency. , when it is detected that the frequency of the door opening operation of the vegetable compartment door 103 is, for example, 1 time within 1.5 to 2 seconds, etc., it is limited when the frequency is higher than a predetermined frequency, and the electromagnet 114 is not used to force the opening direction of the vegetable compartment door 103. able.

In addition, if the opening of the vegetable compartment 103 is not suspended, but the user continues to pull the vegetable compartment door 103 with the hand on the handle 123, the storage container 108 can be pulled out together with the vegetable compartment door 103 as required. (FIG. 15(c) illustrates a situation where the vegetable compartment door 103 is thus separated from the operation detection switch 128).

In addition, if the vegetable compartment door 103 is opened (the storage product container 108 is pulled out), the vegetable compartment door 103 is pushed in, and the container supporting member 109 and the casters 121 return to the innermost storage position by using the "drop-in" structure, thereby The vegetable compartment door 103 is returned to the above-mentioned closed state.

In this way, in the refrigerator of this structure, the electromagnet 114 responds to the detection action of the operation detection switch 128 that detects the user's operation for opening the vegetable compartment door 103, and acts to energize the vegetable compartment door 103 in the opening direction to assist. To open the door, in such a structure, when the opening of the vegetable compartment door 103 is suspended within the distance within which the electromagnet 114 energizes the vegetable compartment door 103 in the opening direction, the vegetable compartment door 103 is closed using a "drop-in" configuration , In this way, the vegetable compartment door 103 can not be placed in a half-open state. Therefore, unlike conventional refrigerators, it is not necessary to keep the vegetable compartment door 103 in an open state, and the possibility of deterioration of stored products can be eliminated.

In addition, in the case of the refrigerator of this structure, the operation detection switch 128 is away from the user in the unoperated state to open the vegetable compartment door 103 and operate it to the direction of the operation detection switch 128, so that the operation detection switch 128 Mobile components for work. In this way, the operation detection switch 128 and the moving member 128 do not hinder the opening of the vegetable compartment door 103 within the distance in which the electromagnet 114 gives the vegetable compartment door 103 energy in the opening direction. Closing the vegetable compartment door 103 can more reliably prevent the vegetable compartment door 103 from being placed in a half-open state.

In addition, in the case of the refrigerator of this configuration, after the detection operation of the operation detection switch 128, the electromagnet 114 may energize the vegetable compartment door 103 in the opening direction for a limited predetermined time. In this way, the distance in which the electromagnet 114 energizes the vegetable compartment door 103 in the opening direction can be set more reliably, so that when the opening of the vegetable compartment door 103 is suspended within the range of the energizing distance, the "fall" can be used more reliably. "In" configuration closes the vegetable compartment door 103.

Furthermore, in the case of the refrigerator of this structure, as the door closing detection unit that detects the closing of the vegetable compartment door 103, there is a door switch 129, and only when the door switch 129 detects that the vegetable compartment door 103 is closed, The electromagnet 114 is energized in the opening direction of the vegetable compartment door 103 . This can prevent the electromagnet 114 from energizing the vegetable compartment door 103 in the door-opening direction when the vegetable compartment door 103 is in the open state, and only assist in opening the vegetable compartment door 103 under necessary conditions.

In addition, in the case of the refrigerator of this structure, there is a door-opening operation frequency detection unit (control device 130 ) that detects the door-opening operation frequency of the vegetable compartment door 103, and the vegetable compartment door is detected by this door-opening operation frequency detection unit. When the frequency of door opening operation of the door 103 is higher than specified, the execution of the electromagnet 114 to energize the vegetable compartment door 103 in the opening direction is also limited. In this way, when the frequency of opening the vegetable compartment door 103 is high, the vegetable compartment door 103 is continuously energized in the opening direction, so that the temperature of the coils 118 and 119 of the electromagnet 114 can be avoided from excessively rising.

In addition, since direct current is passed through the coils 118 and 119 of the electromagnet 114, it is possible to prevent the coils 118 and 119 from vibrating and sounding when the coils 118 and 119 are energized.

Furthermore, since the coils 118, 119 of the two electromagnets 114 are connected in series, all these coils are not energized when any one of these coils 118, 119 is disconnected, so that only the coils 118, 119 of the electromagnet 114 of one side can be prevented. When 119 is energized, force is applied unbalancedly to the vegetable compartment door 103, making it difficult to open the vegetable compartment door. Moreover, in this case, the magnetic force generated by these coils 118, 119 depends on the current, so the use of copper on the coils 118, 119 can be reduced by using a series connection with half the voltage applied to the coils 118, 119. quantity.

Corresponding to the above, Fig. 19 and Fig. 20 show the 5th and the 6th embodiment of the present invention (the 5th and the 6th embodiment form), the part identical with the 4th embodiment is marked with the same reference numeral, and its explanation is omitted, Only the different parts are explained.

[Fifth Embodiment]

In the fifth embodiment shown in FIG. 19 , as an operation detection unit instead of the operation detection switch 128 composed of the above-mentioned micro switch, a magnetic switch 141 composed of a reed switch and a Hall integrated circuit, etc. is used. For the moving member 124, A permanent magnet 142 is attached to the rear end so as to correspond to the magnetic switch 141 . In addition, also in the case of this refrigerator, the magnetic switch 141 is separated from the moving member 124 as shown in FIG.

Utilize this structure, when the user puts his hand on the handle 123 of the vegetable compartment door 103 and pulls it, the moving member 124 pressed backward by the upper part of the handle 123, as shown in Figure 15(b), makes the permanent magnet 142 approach. The magnetic switch 141 operates the magnetic switch 141 to detect an operation for opening the vegetable compartment door 103 .

Therefore, even in this way, it is possible to obtain the same operational effects as those described above in assisting the opening of the vegetable compartment door 103 .

[Sixth embodiment]

In the sixth embodiment shown in FIG. 20, as an electromagnetic device replacing the above-mentioned electromagnet 114, a solenoid 154 having a movable magnetic core 152 in a coil 151 and a spring 153 behind the movable magnetic core 152 is used, It is installed in the deep part of the vegetable compartment 107 so that the front end of the movable magnetic core 152 corresponds to the rear end of the container support member 109, especially by the elastic force of the spring 152 to make them contact.

With such a configuration, when an operation to open the vegetable compartment door 103 is detected, the coil 151 of the solenoid 154 is energized, and the movable magnetic core 152 is extended forward. Pushing the container support member 109 in this way energizes the vegetable compartment door 103 in the opening direction. Therefore, the movable magnetic core 152 of the solenoid 154 functions as a push rod for pushing the container support member 109 .

Even so, the same operation and effect as above can be obtained in assisting the opening of the vegetable compartment door 103 . In particular, the container support member 109 is pushed from the rear to energize the vegetable compartment door 103 in the opening direction, so that the distance at which the electromagnet 114 energizes the vegetable compartment door 103 in the opening direction can be set more reliably.

Moreover, especially in a normal state, by abutting the front end of the movable magnetic core 152 with the rear end of the container supporting member 109, the movable magnetic core 152 can prevent the knocking sound when the container supporting member 109 is pushed.

In addition, as an electromagnetic device, in addition to the above-mentioned electromagnet 114 and solenoid 154, a motor etc. can be used especially as a member which protrudes a push rod. In addition, there may be only one electromagnetic device.

In addition, as the whole storage cabinet, in addition to a refrigerator, a thermostat, a normal temperature cabinet, etc. may be sufficient.

In addition, the door exemplified by vegetable compartment door 103 may be refrigerator compartment door 102, and even if it is limited to a pull-out type door, may be ice maker compartment door 104, switching compartment door 105, freezer compartment door 106, and the like.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate changes within the range not departing from the gist of the present invention.

Claims (9)

1. A storage cabinet, characterized in that it has: a storage cabinet body having a storage compartment; Opening or closing the door of the storage entrance and exit of the storage room in a manner of parallel clutch movement relative to the main body of the storage cabinet; a storage container that is taken out or put into said storage compartment by a pull-out action accompanying the movement of the door; a handle for pulling out provided on the door, and an operation response mechanism that operates in response to the operation of the handle; and an electromagnetic device and a detector arranged on the main body of the storage cabinet, The detector is operated by the operation response mechanism that operates in response to the handle operation, and the electromagnetic device is excited by the operation of the detector to separate the door from the storage cabinet body. 2. The storage cabinet of claim 1, wherein: The electromagnetic device pulls the door to the side of the main body of the cabinet when the door is pulled out, and there is no part for the storage container to fall into the storage position on the guide rail that guides the storage container so that it can be taken out and put in. 3. The storage cabinet of claim 1, wherein: The electromagnetic device can adjust the magnetic force that keeps the door away from the main body of the storage cabinet. 4. A storage cabinet, characterized in that it has: a storage cabinet body having a storage compartment; opening and closing the door of the storage entrance and exit of the storage room; an operation detection unit that detects a user's operation for opening the door; an electromagnetic device that energizes the door in an opening direction and operates in response to detection by the operation detection unit; and Within the range of the distance that the electromagnetic device energizes in the opening direction of the door, the door closing energizing unit that energizes the door in the closing direction, Within the range of the distance in which the electromagnetic device is energized in the door opening direction, when the opening of the door is suspended, the door is closed under the action of the door closing energizing unit. 5. The storage cabinet of claim 4, wherein: When the operation detection unit is in the non-operated state, the movement member is moved toward the operation detection unit by the operation of the user who intends to open the door, and the operation detection unit is operated. 6. The storage cabinet of claim 4, wherein: After the detection action of the operation detection unit, the door is energized in the opening direction by the electromagnetic device within a predetermined time. 7. The storage cabinet of claim 4, wherein: A door closing detection unit for detecting closing of the door is provided, and the door is energized in an opening direction by the electromagnetic device only when the door closing detection unit detects that the door is closed. 8. The storage cabinet of claim 4, wherein: There is a door opening operation frequency detection unit for detecting the door opening operation frequency of the door, and when the door opening operation frequency detection unit detects that the door opening operation frequency is higher than the specified frequency, the electromagnetic device is limited to the door in its opening direction. empowered execution. 9. The storage cabinet of claim 4, wherein: The door uses parallel clutch movement relative to the main body of the storage cabinet to open or close the storage entrance and exit of the storage room. The storage product container is supported on the door by the container support member. At the same time, an electromagnetic device is installed in the depth of the storage room. The door is energized in the opening direction by pushing the container support member through the protruding push rod.

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