JP2011038677A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of easily detecting opening/closing of a door body by utilizing a hall IC without needing a complicated link mechanism while reducing malfunction. <P>SOLUTION: This refrigerator includes a refrigerator body having a storage compartment, the hall IC connected to a control device disposed at a body side, the door body covering a front opening part of the storage compartment of the body, a permanent magnet disposed on the door body for switching ON-OFF of the hall IC, and an operating part disposed on the door body. The permanent magnet operating the hall IC is ordinarily positioned at a lower part with respect to a hall IC operating position, and the refrigerator includes a mechanism for lifting up the hall IC to an operable position when the operating part is operated. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a refrigerator, and more particularly, to a storage that detects opening / closing of a door body using such a magnetic element.

  Conventionally, mainly refrigerators having storage rooms have door bodies that cover the front opening of the main body. And a user has the structure which takes out what was preserve | saved in the storage room by opening the door. In recent years, doors that automatically open or assist the opening and have improved ease of use have become commercially available. This refrigerator / freezer has an operation part such as a button on the door body side to automatically open the door, and transmits a command from the operation part to the main body side of the storage, and the mechanism attached to the storage main body side operates. It is a mechanism to do.

  Among them, in particular, in a method using magnetic force as a method of transmitting a command from the door body to the main body, a Hall IC that is a magnetic element is provided on the main body side, and a permanent magnet is provided on the door body side. The magnetic field is changed by moving the permanent magnet in response to a command from the operation unit, and the Hall IC is turned on and off. In the method of moving the permanent magnet and managing the opening device, the permanent magnet is moved out of the operating range of the Hall IC, so that the moving distance of the permanent magnet is increased. In order to secure the amount of movement, an amplification mechanism that amplifies the amount of pushing of the operation unit such as a button is often used. The amplification mechanism requires many components and a complicated mechanism.

  In addition, ON-OFF management is performed by the distance between the Hall IC and the permanent magnet, but rubber packing is interposed between the door body to which the permanent magnet is attached and the storage body to which the Hall IC is attached. There are many things, and it is difficult to always keep a certain distance without variation.

JP 2006-30816 A

  However, in the above-described prior art, the magnet is rotated by a two-dimensional movement in the product width direction of the refrigerator, which causes a problem that the mechanism becomes complicated and malfunctions occur due to secular change.

  Therefore, in the present invention, in view of the above-described problems in the prior art, the opening and closing of the door body using a Hall IC without requiring a complicated link mechanism, that is, with a simple mechanism and reduced malfunction. It is an object of the present invention to provide a storage capable of detecting the above.

  Therefore, according to the present invention, in order to achieve the above-described object, first, a refrigerator main body having a storage room, a hall IC connected to a control device arranged on the main body side, and a storage room of the main body In a storage unit including a door body that covers the front opening, a permanent magnet that is disposed on the door body and switches the ON / OFF of the hall IC, and an operation unit that is disposed on the door body, The permanent magnet for operating the hall IC is located below the position for operating the hall IC, and when the operation unit is operated, the mechanism lifts the hole IC to a position where the hall IC can be operated. A refrigerator is provided.

  According to the present invention, in the mechanism of the refrigerator described above, the permanent magnet for operating the hall IC is provided with an operating pin until a position where the hall IC cannot be operated due to its own weight. It is preferable to lower the center, or when a part of the frame that supports the permanent magnet is pushed, the moving distance of the operation unit is expanded, and thus the permanent magnet that operates the hall IC. It is preferable to provide an operating pin in the middle of the frame.

  According to the above-described refrigerator according to the present invention, it is possible to move the position of the permanent magnet and operate the hall IC with a simple mechanism using the Hall IC, thereby reducing malfunction. It is possible to detect the opening and closing of the door body, and since it becomes a simple and small mechanism, it is practically superior that it is possible to provide a storage with improved design and assembly. Demonstrate the effect.

It is a front view of the refrigerator which becomes one embodiment of this invention. It is AA sectional drawing for showing the internal detailed structure in the said refrigerator. It is a partially expanded top view for demonstrating the drawer door of the refrigerator used as the characteristics of this invention especially. It is a partially expanded sectional view which shows the internal structure of the drawer door of the refrigerator which becomes this invention shown in the said FIG. It is a longitudinal cross-sectional view for showing the internal structure of the drawer door of the refrigerator which becomes this invention shown in the said FIG. 3, and is BB sectional drawing of the said FIG. FIG. 6 is a longitudinal sectional view similar to FIG. 5 for showing the operation of the drawer door, but is a longitudinal sectional view showing a state after the door is pulled out.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  First, FIG. 1 attached is a front view of a refrigerator according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA of the refrigerator shown in FIG.

  First, FIG. 1 shows a front view of a refrigerator body. As is apparent from the drawing, a refrigerator body 1 employing the present invention includes a plurality of double doors (upper two steps). It has a plurality of doors 3 and 3 including a plurality of drawer doors (lower two steps). However, the present invention is not limited to this, and is also applicable to, for example, a refrigerator that does not have a revolving door and is configured only with a drawer door, or a refrigerator that includes only a revolving door without a drawer door. be able to.

  Next, in FIG. 2 attached, the detailed structure of the interior of the refrigerator main body 1 shown in FIG. 1 is shown by the AA section of FIG. 1. In FIG. It is a Hall IC attached to the vertical partition wall of the refrigerator body 1. The Hall IC 2 is disposed at a position facing the door. In addition, the code | symbol 3 in a figure is a door which obstruct | occludes the front opening part of a refrigerator main body, is a door attached to the surface facing Hall IC2, the code | symbol 4 is a control apparatus of a refrigerator, and the code | symbol 5 is Each automatic door opening device is shown.

  In the above-described refrigerator, the control device 4 operates the automatic door opening device 5 based on the ON / OFF information of the Hall IC 2. When the automatic door opening device 5 is activated, the door 3 is automatically opened.

  In FIG. 2, reference numeral 6 denotes a permanent magnet, which is disposed on the door 3 facing the Hall IC 2. The change in the magnetic force of the permanent magnet 6 switches the Hall IC 2 between ON and OFF. Reference numeral 7 denotes a magnetic shielding plate made of a material that blocks magnetic force, and is located between the Hall IC 2 and the permanent magnet 6. That is, the magnetic force from the permanent magnet 6 transmitted to the Hall IC 2 is changed by the movement of the magnetic shielding plate 7. Therefore, the Hall IC 2 can be switched on and off without moving the permanent magnet 6.

  In other words, in the present invention, the Hall IC and the permanent magnet are initially positioned at a distance (within a magnetic field) where the Hall IC can be operated, and the magnetic field is interposed by interposing a magnetic shielding plate. The Hall IC is switched from ON to OFF or from OFF to ON.

  In addition, in FIG. 2, the code | symbol 8 is the interior lamp installed in order to make it easy to see the food etc. which are stored in the storage. This interior lamp may be attached to a position other than the figure. Reference numeral 9 is a fan for efficiently circulating the cool air in the cabinet, and reference numeral 10 is a buzzer. In order to prevent forgetting to close the door, for example, when a certain time elapses with the door opened. A warning sound is generated. As described above, by simultaneously controlling the above-described interior lamp 8, fan 9, buzzer 10 and the like together with the automatic door opening device 5 by the single Hall IC, the efficiency of using the Hall IC can be improved. Will be improved.

  Next, FIG. 3 is a partially enlarged top view for explaining the main part of the storage according to the present invention, particularly the drawer door. That is, the above-described Hall IC 2 is arranged inside the vertical partition wall of the refrigerator body 1, and the above-described permanent magnet is disposed at a position facing the Hall IC in the drawer door 3 that closes the opening. 6 is attached. As will be apparent from the following drawings, the operation unit 30 is a member that hooks the user's hand, and a part of the operation unit 30 is provided with a push button 31, and the user can draw out the drawer door. When 3 is pulled out (opened), the push button 31 is pressed to pull out the drawer door 3.

  Further, FIGS. 4 and 5 attached hereto are a partially enlarged sectional view showing a detailed structure of the inside of the operation unit 30 attached to the inside of the drawer door 3 together with the Hall IC 2, and a longitudinal sectional view thereof ( FIG. 4 shows a BB cross section in FIG.

  As is clear from these cross-sectional views, the operation unit 30 includes a housing 40 formed of a metal plate having a magnetic shielding effect in a box shape, such as an iron-based metal. In the interior, a permanent magnet 6 having a substantially plate-like outer shape is rotatably attached. That is, the casing 40 is formed so as to surround the outer periphery of the permanent magnet 6, and a part of the surface (the upper side surface in FIG. 4 and the right side surface in FIG. 5) facing the Hall IC 2 is notched. The opening 41 is formed.

  Further, as apparent from the figure, the plate-like permanent magnet 6 is provided with a frame 61 for supporting the magnet, and one end thereof (the lower end portion in FIG. 5 is provided with a pair of operating pins 62 and 62 at the left end). And the said permanent magnet 6 is rotatably attached centering | focusing on the said operating pin by hold | maintaining the said operating pin with a pair of bearing parts 42 and 42 provided integrally in the housing | casing 40. FIG.

  The one end 63 of the frame 61 is further formed by being bent into a substantially “V” shape, and a groove is formed at the tip thereof to form a so-called hooking portion (63). is doing. On the other hand, a rod member 32 formed in a substantially “Z” shape is fixed to the back side of the push button 31, and a part of the rod member is opened in the wall surface 43 inside the housing 40. In addition to being inserted into the through-hole 44, a locking portion 33 made of, for example, a double disk is formed at the tip. The frame 61 and the push button 31 are mechanically connected to each other via the hook portion 63 and the locking portion 33 described above, so that the permanent magnet 6 can be moved up and down. It constitutes a moving mechanism.

  Subsequently, in the refrigerator whose detailed structure has been described above, the operation of the moving mechanism constituting the operation unit 30 when the drawer door is pulled out will be described with reference to FIG. explain. 5 shows a state before the drawer door is pulled out, and FIG. 6 shows a state where the user has pulled out the drawer door.

  As shown in FIG. 5, before the user pulls out the drawer door, the magnet 6 moves downward together with the frame 61 by its own weight (that is, in the example shown in the figure, The right side is lowered around the pair of operating pins 62, 62). In this state, the magnetic force from the magnet 6 is confined in the housing 40 formed of a member having a magnetic shielding effect, and the magnetic force from the permanent magnet 6 transmitted to the Hall IC 2 is relatively weak. .

  Then, when the user tries to pull out the drawer door and puts his finger on the handle portion 38 formed on the door and simultaneously presses the push button 31 with his thumb or the like, as shown by the arrow in FIG. When the rod member 34 moves together with the button 31 and the hook 63 of the frame 61 moves in the direction of the arrow, the magnet 6 moves the pair of operating pins 62 and 62 together with the frame 61. It rotates and moves upward as the center.

  FIG. 6 shows a state after the magnet 6 has been rotated upward by the operation of the moving mechanism described above. In this state, the plate-like magnet 6 is shown in FIG. The end face (right side in the figure) is moved to a position facing the Hall IC 2 through the opening 41 of the housing 40. Therefore, the magnetic force transmitted from the magnet 6 to the Hall IC 2 is stronger than that in the case of FIG. That is, the moving distance of the push button 31 as the operation unit is expanded and transmitted to the magnet that operates the hall IC. As a result, the magnetic force transmitted to the Hall IC fluctuates, so that the Hall IC can be switched on and off. And by switching ON / OFF of this Hall IC, the above-mentioned interior lamp 8, fan 9, buzzer 10 and the like are controlled simultaneously with the automatic door opening device 5.

  Thereafter, when the drawer operation of the drawer door is completed and the user releases his hand from the handle portion 38 and the push button 31 described above, as described above, the magnet 6 moves to the original position by its own weight, The push button 31 also returns to the original position. Alternatively, if it is not the vertical structure as described above, although not shown here, the push button 31 is always outside by using an elastic member such as a spring, for example, in the downward direction in FIG. It may be a structure that urges toward the left in FIG.

  Further, when the housing 40 that houses the moving mechanism in the magnet together with the magnet described above is, for example, a magnetic shielding plate case formed of a resin member, abnormal noise or the like generated by friction or the like therein Can be prevented from leaking outside.

  That is, in the structure of the above-described embodiment, since the magnet is rotated two-dimensionally in the height direction of the product using the self-weight of the magnet, the distance for moving the magnet can be reduced. In addition, it is possible to detect opening and closing of the door body with reduced malfunction. Further, in the above description, the case where the moving mechanism of the present invention is applied to a drawer type drawer door has been described. However, the present invention is not limited to this, and other than the rotary type door. However, it will be apparent to those skilled in the art that the present invention can be applied in the same manner and the same effect as described above can be obtained.

  DESCRIPTION OF SYMBOLS 1 ... Refrigerator main body, 2 ... Hall IC, 3 ... Door, 4 ... Control apparatus, 5 ... Automatic door opening device, 6 ... Permanent magnet, 8 interior light, 9 ... Fan, 10 ... Buzzer, 30 ... Operation part, 31 DESCRIPTION OF SYMBOLS ... Push button, 40 ... Housing | casing, 41 ... Opening part, 43 ... Wall surface, 44 ... Through-hole, 61 ... Frame, 62 ... Actuation pin, 63 ... Hook part.

Claims (3)

  A refrigerator main body having a storage room, a hall IC connected to a control device disposed on the main body side, a door body that covers a front opening of the storage room of the main body, and a door body disposed on the door body. -In the storage provided with the permanent magnet which switches ON-OFF of a roll IC and the operation part arrange | positioned at this door body, Furthermore, the said permanent magnet which always operates the said roll IC is the said Hall IC. A refrigerator comprising a mechanism that is located below a position where the hall IC is operated and lifts the hole IC to a position where the hall IC can be operated when the operation unit is operated.   The mechanism is characterized in that the permanent magnet for operating the hall IC is lowered about the operating pin to a position where the hall IC cannot be operated due to its own weight. The refrigerator according to claim 1.   In the operation portion provided on the door body surface side, when a part of the frame supporting the permanent magnet is pressed, the movement distance of the operation portion is expanded, and thus the permanent IC that operates the hall IC is operated. 2. The refrigerator according to claim 1, wherein an operating pin is provided in the middle of the frame so as to be transmitted to a magnet.

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