JP2014137910A - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
JP2014137910A
JP2014137910A JP2013006028A JP2013006028A JP2014137910A JP 2014137910 A JP2014137910 A JP 2014137910A JP 2013006028 A JP2013006028 A JP 2013006028A JP 2013006028 A JP2013006028 A JP 2013006028A JP 2014137910 A JP2014137910 A JP 2014137910A
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Japan
Prior art keywords
switch
support portion
refrigerator
support
cover
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JP2013006028A
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Japanese (ja)
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JP6167281B2 (en
Inventor
Tomohiko Matsuno
智彦 松野
Michio Fukuda
道雄 福田
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Panasonic Corp
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Panasonic Corp
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Priority to JP2013006028A priority Critical patent/JP6167281B2/en
Priority to BR112015017076-5A priority patent/BR112015017076B1/en
Priority to PCT/JP2014/000079 priority patent/WO2014112340A1/en
Publication of JP2014137910A publication Critical patent/JP2014137910A/en
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Publication of JP6167281B2 publication Critical patent/JP6167281B2/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/36—Visual displays
    • F25D2400/361—Interactive visual displays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/064—Limitation of actuating pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/01—Mounting on appliance
    • H01H2223/022—Adhesive
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/032—Operating force
    • H01H2227/034—Regulation of operating force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/012—Household appliance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/032—Anti-tamper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/038—Anti-vandalism

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Push-Button Switches (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which maintains good operability of a switch, prevents the damage of a switch part, and achieves high reliability.SOLUTION: A refrigerator includes: a switch substrate 17 disposed at a recessed part 15 on a front surface of a door; a cover 20 which covers the recessed part 15 and the switch substrate 17; and a first support part 24 and a second support part 25 which are located between the switch substrate 17 and the recessed part 15 and support the switch substrate 17. The first support part 24 is deformed in a direction of a storage room when being pressed in the storage room direction. The second support part 25 is a rigid body which prevents the first support part 24 from being deformed in the storage room direction after the deformation of the first support part 24 reaches a predetermined amount. The structure properly holds a space between a switch 18 and the cover 20 and attains good switching performance. Further, even when the switch part is pressed strongly, the switch substrate 17 is supported by the second support part 25 and is not pressed down largely. Therefore, the damage of the switch substrate 17 is prevented.

Description

本発明は冷蔵庫に関し、特にスイッチ操作部構成に関するものである。   The present invention relates to a refrigerator, and particularly to a switch operation unit configuration.

一般に冷蔵庫は冷却温度等を設定するスイッチ操作部が扉の前面に設けてある（例えば、特許文献１参照）。   Generally, a refrigerator is provided with a switch operation unit for setting a cooling temperature or the like on the front surface of a door (see, for example, Patent Document 1).

図７、図８は上記特許文献１に記載された冷蔵庫を示し、この冷蔵庫は扉１０１の前面に操作部１０２を設け、この操作部１０２はスイッチ操作部１０３と表示部１０４とからなっている。そして、スイッチ操作部１０３のスイッチ１０５は静電スイッチで構成し、静電スイッチ１０５の前面を覆う扉ガラス１０６にタッチすることによって設定入力ができるようになっている。   7 and 8 show the refrigerator described in the above-mentioned Patent Document 1. This refrigerator is provided with an operation unit 102 on the front surface of the door 101. The operation unit 102 includes a switch operation unit 103 and a display unit 104. . The switch 105 of the switch operation unit 103 is configured by an electrostatic switch, and setting input can be performed by touching the door glass 106 that covers the front surface of the electrostatic switch 105.

上記静電スイッチ１０５はその表面を覆う扉ガラス１０６との間の間隔が大きくなると感度が低下するため、この特許文献１記載のものでは図８に示すように前記静電スイッチ１０５を組み込んだスイッチ基板１０７をスイッチケース１０８に収容し、このスイッチケース１０８に弾性突起１０９を設け、この弾性突起１０９を扉１０１の操作部装着凹部１１０の底面壁１１１に弾接させて矢印Ｑで示すように前記スイッチ基板１０７を扉ガラス１０６に押し付けるように構成してある。   Since the sensitivity of the electrostatic switch 105 decreases as the distance between the surface of the electrostatic switch 105 and the door glass 106 covering the surface increases, the switch described in Patent Document 1 incorporates the electrostatic switch 105 as shown in FIG. The board 107 is accommodated in a switch case 108, and an elastic protrusion 109 is provided on the switch case 108. The elastic protrusion 109 is brought into elastic contact with the bottom wall 111 of the operation portion mounting recess 110 of the door 101, as indicated by the arrow Q. The switch board 107 is configured to be pressed against the door glass 106.

これにより、スイッチ基板１０７の静電スイッチ１０５は扉ガラス１０６の内面に密接し、感度が確保されて操作ミスを引き起こすことなく確実なスイッチ操作が可能になる、というものである。   As a result, the electrostatic switch 105 of the switch board 107 is in close contact with the inner surface of the door glass 106, and the sensitivity is ensured so that a reliable switch operation can be performed without causing an operation error.

特開２０１２−７８０８６号公報JP 2012-78086 A

しかしながら、上記従来の構成では、静電スイッチ１０５の表面を覆うものがガラスのような剛性体である場合は問題ないものの、エンブレムシートや合成樹脂板のようにたわみ変形可能なカバーである場合はスイッチ部の破損を招く恐れがある。例えば、ユーザが静電スイッチ１０５を強く押圧すると、スイッチ基板１０７を支えている弾性突起１０６が大きく変形してスイッチ基板１０７自体が大きく押し込まれ、スイッチ基板１０７が基板取り付け部から外れたり、或いは静電スイッチ１０７に繋がる結線用箔にひびが入って断線したりする等の破損が生じるのである。   However, in the above conventional configuration, there is no problem when the surface covering the electrostatic switch 105 is a rigid body such as glass, but when the cover is a deformable cover such as an emblem sheet or a synthetic resin plate. The switch part may be damaged. For example, when the user strongly presses the electrostatic switch 105, the elastic protrusion 106 supporting the switch substrate 107 is greatly deformed and the switch substrate 107 itself is largely pushed in, so that the switch substrate 107 is detached from the substrate mounting portion, or static. The connection foil connected to the electric switch 107 is damaged, for example, cracked and disconnected.

本発明はこのような点に鑑みてなしたもので、スイッチの操作性を良好に維持しつつスイッチ部の破損防止を図った冷蔵庫の提供を目的としたものである。   The present invention has been made in view of these points, and an object of the present invention is to provide a refrigerator in which the operability of the switch is well maintained and the switch portion is prevented from being damaged.

本発明は上記目的を達成するため、冷蔵庫本体と、前記冷蔵庫本体内に形成した貯蔵室と、前記貯蔵室の開口部を覆う扉と、前記扉の前記貯蔵室に接する面とは逆側の面に構成した凹部と、前記凹部に配置されスイッチを装備したスイッチ基板と、前記凹部と前記スイッチ基板とを覆うカバーと、前記スイッチ基板と前記凹部との間にあって、前記スイッチ基板を支持する第一の支持部及び第二の支持部とを備え、前記第一の支持部は前記カバ
ーの前記貯蔵室方向への押圧により前記貯蔵室方向へ変形するものとし、前記第二の支持部は前記第一の支持部が所定以上変形した以降は当該第一の支持部に押圧力を加えても前記貯蔵室方向へは変形させない剛体としたものである。 In order to achieve the above object, the present invention provides a refrigerator main body, a storage chamber formed in the refrigerator main body, a door that covers the opening of the storage chamber, and a surface of the door opposite to the surface that contacts the storage chamber. A recess configured on a surface, a switch board disposed in the recess and equipped with a switch, a cover covering the recess and the switch board, and a switch board and the recess between the switch board and the recess to support the switch board. A first support portion and a second support portion, wherein the first support portion is deformed toward the storage chamber by pressing the cover toward the storage chamber, and the second support portion is After the first support portion is deformed by a predetermined amount or more, a rigid body that does not deform toward the storage chamber even when a pressing force is applied to the first support portion is used.

これにより、第一の支持部の弾性力によってスイッチ基板上のスイッチとカバーとを例えば密接させるなどして当該両者の間の間隔を適切に保持することができ、スイッチが静電スイッチであっても、良好なスイッチ性能を得ることができるとともに、カバーがたわみ変形等可能なものであってスイッチ部が強く押圧され、スイッチ基板自体が貯蔵室側に押し込まれても、このスイッチ基板は第一の支持部が所定量変形した後は第二の支持部に支持されてそれ以上の押し込みを防止される。よって、スイッチ基板自体が大きく押し込まれてスイッチ基板が基板取り付け部から外れたり、スイッチに繋がる結線用箔にひびが入って断線するなど破損することもなくなる。   Thereby, the switch and the cover on the switch substrate can be kept in close contact with each other by the elastic force of the first support part, for example, and the switch can be appropriately held. However, it is possible to obtain a good switch performance, and the cover can be bent and deformed, the switch part is strongly pressed, and the switch board itself is pushed into the storage chamber side. After the support portion is deformed by a predetermined amount, the support portion is supported by the second support portion to prevent further pressing. Therefore, the switch board itself is not pushed in greatly, and the switch board is not detached from the board mounting portion, or the connection foil connected to the switch is cracked and disconnected, and is not damaged.

本発明は、スイッチとカバーとの間の間隔を適切に保持して良好な操作性を確保できるとともに、スイッチが強く押圧されてもスイッチ基板が大きく押し込まれて破損するようなことがなく、信頼性の高い冷蔵庫とすることができる。   According to the present invention, the distance between the switch and the cover can be appropriately maintained to ensure good operability, and even if the switch is strongly pressed, the switch board is not pushed in and is not damaged. It can be set as a highly efficient refrigerator.

本発明の実施の形態１における冷蔵庫の正面図Front view of the refrigerator in Embodiment 1 of the present invention 同冷蔵庫の縦断面図Vertical section of the refrigerator 同冷蔵庫の扉の断面図Cross section of the refrigerator door 同冷蔵庫のスイッチ操作部を示す拡大断面図The expanded sectional view which shows the switch operation part of the refrigerator 同冷蔵庫のスイッチ操作部に設けた第一の支持部とスイッチ基板との関係を示す拡大断面図The expanded sectional view which shows the relationship between the 1st support part and switch board which were provided in the switch operation part of the refrigerator 同冷蔵庫のスイッチ操作部に設けた第二の支持部とスイッチ基板との関係を示す拡大断面図The expanded sectional view which shows the relationship between the 2nd support part and switch board which were provided in the switch operation part of the refrigerator 従来の冷蔵庫の正面図Front view of a conventional refrigerator 同従来の冷蔵庫の操作部を示す拡大断面図An enlarged sectional view showing an operation part of the conventional refrigerator

第１の発明は、冷蔵庫本体と、前記冷蔵庫本体内に形成した貯蔵室と、前記貯蔵室の開口部を覆う扉と、前記扉の前記貯蔵室に接する面とは逆側の面に構成した凹部と、前記凹部に配置されスイッチを装備したスイッチ基板と、前記凹部と前記スイッチ基板とを覆うカバーと、前記スイッチ基板と前記凹部との間にあって、前記スイッチ基板を支持する第一の支持部及び第二の支持部とを備え、前記第一の支持部は前記カバーの前記貯蔵室方向への押圧により前記貯蔵室方向へ変形するものとし、前記第二の支持部は前記第一の支持部が所定以上変形した以降は当該第一の支持部に押圧力を加えても前記貯蔵室方向へは変形させない剛体としたものである。   1st invention comprised the refrigerator main body, the storage chamber formed in the said refrigerator main body, the door which covers the opening part of the said storage chamber, and the surface on the opposite side to the surface which contact | connects the said storage chamber of the said door. A recess, a switch board disposed in the recess and equipped with a switch, a cover that covers the recess and the switch board, and a first support part that supports the switch board between the switch board and the recess. And the second support portion, wherein the first support portion is deformed in the direction of the storage chamber by the pressing of the cover in the direction of the storage chamber, and the second support portion is the first support. After the portion is deformed more than a predetermined amount, it is a rigid body that is not deformed in the direction of the storage chamber even if a pressing force is applied to the first support portion.

これにより、第一の支持部の弾性力によってスイッチ基板上のスイッチとカバーとを密接状態に保持することができ、スイッチが静電スイッチであっても、良好なスイッチ性能を得ることができるとともに、カバーがたわみ変形等可能なものであってスイッチ部が強く押圧され、スイッチ基板自体が貯蔵室側に押し込まれても、このスイッチ基板は第一の支持部が所定量変形した後は第二の支持部に支持されてそれ以上の押し込みを防止される。よって、スイッチ基板自体が大きく押し込まれてスイッチ基板が基板取り付け部から外れたり、スイッチに繋がる結線用箔にひびが入って断線するなど破損することもなくなる。   As a result, the switch and the cover on the switch substrate can be held in close contact with each other by the elastic force of the first support portion, and even if the switch is an electrostatic switch, good switch performance can be obtained. Even if the cover is deformable and the switch part is strongly pressed and the switch board itself is pushed into the storage chamber side, the switch board will be in the second state after the first support part is deformed by a predetermined amount. Further pressing is prevented by being supported by the support portion. Therefore, the switch board itself is not pushed in greatly, and the switch board is not detached from the board mounting portion, or the connection foil connected to the switch is cracked and disconnected, and is not damaged.

第２の発明は、第１の発明において、扉は発泡断熱材を充填した断熱構成とし、前記発
泡断熱材に凹状の基板ケースを埋設して凹部を形成するとともに、第一の支持部及び第二の支持部は前記基板ケースに設けてスイッチ基板を支持する構成とし、かつ、スイッチを静電スイッチとしたものである。 According to a second invention, in the first invention, the door has a heat insulating structure filled with a foam heat insulating material, a concave substrate case is embedded in the foam heat insulating material to form a concave portion, and the first support portion and the second The second support portion is provided on the substrate case to support the switch substrate, and the switch is an electrostatic switch.

これにより、扉製造時に発泡断熱材の発泡にばらつきがあって基板ケースにかかる発泡圧力が部分的に異なっていても、扉製造時にあてがう扉前面側の冶具に第二の支持部が当接して基板ケースの凹底面の平面度を維持でき、第一及び第二の支持部の基準面となる凹底面の平面度が高いものとなって、前記第１の発明で説明したスイッチとカバーとの間の密接度ならびに押し込み量管理の精度が向上し、スイッチとカバーとの間の間隔が重要な静電スイッチを用いていても、確実なスイッチ操作性とスイッチ部破損防止を実現することができる。   As a result, even if the foaming insulation foam varies at the time of door manufacture and the foaming pressure applied to the substrate case is partially different, the second support part comes into contact with the jig on the door front side applied at the time of door manufacture. The flatness of the concave bottom surface of the substrate case can be maintained, the flatness of the concave bottom surface serving as the reference surface of the first and second support portions is high, and the switch and cover described in the first invention The degree of closeness and the accuracy of push-in control are improved, and reliable switch operability and prevention of damage to the switch section can be achieved even when using an electrostatic switch where the distance between the switch and the cover is important. .

第３の発明は、第１または第２の発明において、第二の支持部は貯蔵室方向において第一の支持部よりも短くしたものである。   According to a third invention, in the first or second invention, the second support portion is shorter than the first support portion in the direction of the storage chamber.

これにより、第二の支持部を第一の支持部より短くするだけの簡単な構成によりスイッチ基板が押し込まれすぎになることを防止でき、複雑な構成を必要とせず安価に提供することができる。   Thereby, it is possible to prevent the switch board from being pushed too much by a simple configuration in which the second support portion is made shorter than the first support portion, and it is possible to provide a low cost without requiring a complicated configuration. .

第４の発明は第１〜第３の発明において、第一の支持部は先端部を曲面形状に構成して弾力性を持たせた構成としてある。   According to a fourth invention, in the first to third inventions, the first support portion has a configuration in which a tip end portion is formed in a curved surface shape so as to have elasticity.

これによりゴムなどの弾性部材を別途用意することなく第一の支持部の変形を可能とすることができ、コストダウンが図れる。   Accordingly, the first support portion can be deformed without separately preparing an elastic member such as rubber, and the cost can be reduced.

第５の発明は、第１〜第４の発明において、第二の支持部は第一の支持部とともに基板ケースに一体形成した構成としたものである。   According to a fifth invention, in the first to fourth inventions, the second support portion is formed integrally with the substrate case together with the first support portion.

これにより、第一の支持部と第二の支持部の寸法関係を設計通り精度よく出すことができ、カバーと静電スイッチとの間の間隔とスイッチ基板の押し込み防止寸法とを容易かつ最適に管理でき、信頼性の高いものとすることができる。   As a result, the dimensional relationship between the first support part and the second support part can be accurately obtained as designed, and the distance between the cover and the electrostatic switch and the push-in prevention dimension of the switch board can be easily and optimally set. It can be managed and reliable.

第６の発明は、第１〜第５の発明において、第一の支持部はカバーのスイッチ操作部と対応する位置に配置した構成としてある。   According to a sixth invention, in the first to fifth inventions, the first support portion is arranged at a position corresponding to the switch operation portion of the cover.

これにより、静電スイッチとカバーとの間の間隔を確実に最適状態とすることができ、操作感度を良好なものに維持して操作性の一段の向上を図ることができる。   Thereby, the space | interval between an electrostatic switch and a cover can be reliably made into an optimal state, and it can aim at the further improvement of operativity, maintaining a favorable operation sensitivity.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は本発明の実施の形態１における冷蔵庫の正面図、図２は同冷蔵庫の縦断面図、図３は同冷蔵庫の扉の断面図、図４は同冷蔵庫のスイッチ操作部を示す拡大断面図、図５は同冷蔵庫のスイッチ操作部に設けた第一の支持部とスイッチ基板との関係を示す拡大断面図、図６は同冷蔵庫のスイッチ操作部に設けた第二の支持部とスイッチ基板との関係を示す拡大断面図である。 (Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a longitudinal sectional view of the refrigerator, FIG. 3 is a sectional view of the door of the refrigerator, and FIG. 4 is an enlarged sectional view showing a switch operation unit of the refrigerator. FIG. 5 is an enlarged cross-sectional view showing the relationship between the first support part provided in the switch operation part of the refrigerator and the switch board, and FIG. 6 is the second support part and switch provided in the switch operation part of the refrigerator. It is an expanded sectional view which shows the relationship with a board | substrate.

図１〜図６において、この冷蔵庫は、冷蔵庫本体１内に二つの貯蔵室２、３を有し、上部の貯蔵室２を冷凍室、その下部の貯蔵室３を冷蔵室としたトップフリーザ方式の冷蔵庫
となっている。 1 to 6, this refrigerator has two storage chambers 2 and 3 in a refrigerator body 1, a top freezer system in which an upper storage chamber 2 is a freezing chamber and a lower storage chamber 3 is a refrigeration chamber. It has become a refrigerator.

上記冷蔵庫本体１は、図２に示すように、前方に開口する金属製（例えば鉄板）の外箱４と、硬質樹脂製（例えばＡＢＳ製）の内箱５と、これら外箱４と内箱５との間に発泡充填した硬質ウレタン等の発泡断熱材６とからなる。また、冷蔵庫本体１の冷凍室となる貯蔵室２（以下、冷凍室２と称す）及び冷蔵室となる貯蔵室３（以下、冷蔵室３と称す）の前面は、冷蔵庫本体１と同様の構成によって断熱性を持たせた回転自在な扉７、８によって開閉自在となっている。そして、上記冷凍室２の扉７前面にスイッチ操作部９が設けてある。なお、このスイッチ操作部９の構成は後で詳述する。   As shown in FIG. 2, the refrigerator body 1 includes a metal (for example, iron plate) outer box 4 that opens forward, a hard resin (for example, ABS) inner box 5, and these outer box 4 and inner box. 5 and a foam heat insulating material 6 such as hard urethane filled with foam. Further, the front surfaces of a storage room 2 (hereinafter referred to as the freezer room 2) serving as a freezer room of the refrigerator body 1 and a storage room 3 (hereinafter referred to as a refrigerator room 3) serving as a refrigerated room are configured in the same manner as the refrigerator body 1. The doors can be opened and closed by the rotatable doors 7 and 8 having heat insulation. A switch operation unit 9 is provided on the front surface of the door 7 of the freezer compartment 2. The configuration of the switch operation unit 9 will be described in detail later.

また、前記冷蔵庫本体１の冷凍室２背面には冷却室１０があり、冷気を生成する冷却器１０ａと、冷気を各室に供給する送風ファン１１とが設けてある。また、上記冷蔵庫本体１の本体下面背部には圧縮機１２が設けてあり、コンデンサ（図示せず）と、放熱パイプ（図示せず）と、キャピラリーチューブ（図示せず）と、前記した冷却器１０ａとからなる冷凍サイクルに冷媒を封入し、冷却運転を行うように構成してある。   The refrigerator main body 1 has a cooling chamber 10 on the back surface of the freezer compartment 2, and is provided with a cooler 10 a that generates cool air and a blower fan 11 that supplies the cool air to each chamber. Further, a compressor 12 is provided on the back of the lower surface of the main body of the refrigerator body 1, and a condenser (not shown), a heat radiating pipe (not shown), a capillary tube (not shown), and the cooler described above. A refrigerant is enclosed in a refrigeration cycle consisting of 10a and a cooling operation is performed.

なお、上記冷却室１０で生成した冷気はダクト１３、１４を介して冷凍室２と冷蔵室３に供給され、これら両室を冷却するようになっている。   The cold air generated in the cooling chamber 10 is supplied to the freezing chamber 2 and the refrigerating chamber 3 through the ducts 13 and 14, and both chambers are cooled.

次に上記スイッチ操作部９の構成について図３〜図６を用いて説明する。   Next, the configuration of the switch operation unit 9 will be described with reference to FIGS.

図３〜図６において、１５は前記扉７の冷凍室２に接する面とは逆側の面に構成した凹部で、図４に示すように樹脂製かつ略箱型凹状の基板ケース１６によって形成してあり、基板ケース１６はその周りを扉７に充填した発泡断熱材６で囲まれている。   3 to 6, reference numeral 15 denotes a concave portion formed on the surface of the door 7 opposite to the surface in contact with the freezer compartment 2, and is formed by a resin and substantially box-shaped concave substrate case 16 as shown in FIG. The substrate case 16 is surrounded by the foam heat insulating material 6 filled in the door 7.

１７は前記基板ケース１６内に位置するスイッチ基板で、前記冷凍室２や冷蔵室３の冷却設定温度等を入力する静電スイッチ等のスイッチ１８（以下、静電スイッチと称す）とＬＥＤ等からなる表示手段（図示せず）が装備してある。   Reference numeral 17 denotes a switch board located in the board case 16, and includes a switch 18 (hereinafter referred to as an electrostatic switch) such as an electrostatic switch for inputting a cooling set temperature of the freezer compartment 2 and the refrigerator compartment 3, an LED, and the like. Display means (not shown) are provided.

２０は前記凹部１５とスイッチ基板１７を覆うカバーで、この実施の形態ではたわみ変形可能な合成樹脂板で構成してあり、図４に示すように外周適所に設けた爪片部２０ａを扉７の金属製の表面板７ａに嵌め込んで取り付けてある。また、この実施の形態では、カバー２０の周辺部に設けた筒状壁２１の係止突起２２とカバー２０の前面板部２０ｂとの間に前記スイッチ基板１７を嵌め込んであり、カバー２０のスイッチ１８と対向する部分は印刷等を施してスイッチ操作部２３としてある。   Reference numeral 20 denotes a cover that covers the recess 15 and the switch board 17, and is composed of a synthetic resin plate that can be flexibly deformed in this embodiment. A claw piece 20a provided at an appropriate position on the outer periphery as shown in FIG. It is fitted and attached to the metal surface plate 7a. In this embodiment, the switch board 17 is fitted between the locking projection 22 of the cylindrical wall 21 provided in the peripheral part of the cover 20 and the front plate part 20 b of the cover 20. A portion facing the switch 18 is printed and the switch operation unit 23 is provided.

ここで、前記基板ケース１６には弾力性を有する第一の支持部２４と剛性を持つ突起軸状の第二の支持部２５とが一体に形成してあり、前記第一の支持部２４によって前記スイッチ基板１７をカバー２０側に押し付けて支持している。前記第一の支持部２４はスイッチ基板１７の静電スイッチ１８と対向する部分に形成してあり、その先端は曲面状に屈曲させて弾力性を持たせ、カバー２０のスイッチ操作部２３表面側から押圧力が加わった場合、若干、冷凍室２側に変形可能なように構成してある。一方、第二の支持部２５は前記スイッチ基板１７の適所に位置する如く平面状に分散設置し、前記第一の支持部２４の全長より若干短い長さに形成して剛性を持たせ、前記第一の支持部２４が所定量、例えば０．３ｍｍ〜０．５ｍｍ程度変形したときにその先端がスイッチ基板１７に当接しそれ以上第一の支持部２４が変形してスイッチ基板１７が押し込まれすぎになるのを防止するようにしてある。   Here, the substrate case 16 is integrally formed with a first support portion 24 having elasticity and a second support portion 25 having a protruding shaft shape having rigidity, and is formed by the first support portion 24. The switch board 17 is pressed against and supported by the cover 20 side. The first support portion 24 is formed in a portion of the switch substrate 17 facing the electrostatic switch 18, and the tip thereof is bent into a curved surface so as to have elasticity, and the switch operating portion 23 surface side of the cover 20 is provided. When a pressing force is applied from above, it is configured to be slightly deformable to the freezer compartment 2 side. On the other hand, the second support portion 25 is distributed in a plane so as to be positioned at an appropriate position of the switch board 17, and is formed to have a length slightly shorter than the entire length of the first support portion 24 so as to have rigidity. When the first support portion 24 is deformed by a predetermined amount, for example, about 0.3 mm to 0.5 mm, the tip of the first support portion 24 abuts on the switch substrate 17, and the first support portion 24 is further deformed and the switch substrate 17 is pushed. I try to prevent it from going too far.

上記構成において、以下その効用について説明する。   The utility of the above configuration will be described below.

まずスイッチ基板１７は第一の支持部２４によって支持され、その弾性力によってカバー２０の内面に常に圧接気味に保持されている。したがってカバー２０のスイッチ操作部２３を操作したときの前記スイッチ基板１７に装備した静電スイッチ１８の感度は高く、良好なスイッチ性能が得られる。   First, the switch board 17 is supported by the first support portion 24 and is always held in pressure contact with the inner surface of the cover 20 by its elastic force. Therefore, the sensitivity of the electrostatic switch 18 provided on the switch board 17 when the switch operating portion 23 of the cover 20 is operated is high, and good switch performance can be obtained.

このとき、静電スイッチ１８を覆うカバー２０がたわみ変形可能であってスイッチ基板１７を支持している第一の支持部２４が弾性変形可能であるため、ユーザが触るだけでなく押圧操作すればカバー２０のスイッチ操作部２３が若干変位し、ユーザに操作感を与えることになる。したがってユーザは静電スイッチ１８であってもスイッチ操作の感触を得ることができ、操作性が向上する。   At this time, the cover 20 that covers the electrostatic switch 18 can be flexibly deformed, and the first support portion 24 that supports the switch board 17 can be elastically deformed. The switch operation portion 23 of the cover 20 is slightly displaced, giving the user a feeling of operation. Therefore, even if it is the electrostatic switch 18, a user can obtain the touch of a switch operation and operativity improves.

一方、ユーザがスイッチ操作時にカバー２０のスイッチ操作部２３を必要以上に強く押圧すると、第一の支持部２４が冷凍室２側に変形してスイッチ基板１７が押し込まれるものの、所定量変形した時点で第二の支持部２５の先端がスイッチ基板１７に当接することになる。これによって、第二の支持部２５の変形を防止すると同時にスイッチ基板１７がそれ以上の押し込まれることを防止することができる。よって、スイッチ基板１７が押し込まれすぎてカバー２０の係止突起２２から外れたり、或いは静電スイッチ１８に繋がる結線用箔にひびが入ったりしてスイッチ部が破損することを防止できる。   On the other hand, when the user presses the switch operating portion 23 of the cover 20 more strongly than necessary when the switch is operated, the first support portion 24 is deformed to the freezer compartment 2 side and the switch substrate 17 is pushed in, but when the predetermined amount is deformed. Thus, the tip of the second support portion 25 comes into contact with the switch substrate 17. As a result, it is possible to prevent the switch board 17 from being pushed further while preventing the deformation of the second support portion 25. Therefore, it is possible to prevent the switch portion from being damaged due to the switch board 17 being pushed too far and coming off from the locking projection 22 of the cover 20 or cracking in the wiring foil connected to the electrostatic switch 18.

ここでこの実施の形態では、扉７は発泡断熱材６を充填した断熱構成とし、前記発泡断熱材６に凹状箱型の基板ケース１６を埋設して凹部１５を形成するとともに、第一の支持部２４及び第二の支持部２５は前記基板ケース１６に設けてスイッチ基板１７を支持する構成とし、かつ、スイッチを静電スイッチ１８とした構成としてある。これにより、扉製造時に発泡断熱材６の発泡にばらつきがあって基板ケース１６の凹底面にかかる発泡圧力が部分的に異なっていても、扉製造時にあてがう扉前面側の冶具に第二の支持部２５が当接して基板ケース１６の凹底面の平面度を維持するようになり、第一及び第二の支持部２４、２５の基準面となる凹底面を平面度の高いものとすることができる。よって、前記した静電スイッチ１８とカバー２０との間の間隔ならびに押し込み量管理の精度が向上し、カバー２０との間の間隔管理が重要となる静電スイッチ１８を用いていても確実かつ良好なスイッチ操作性とスイッチ部破損防止を実現することができる。   Here, in this embodiment, the door 7 has a heat insulating structure filled with the foam heat insulating material 6, a concave box-shaped substrate case 16 is embedded in the foam heat insulating material 6 to form the concave portion 15, and the first support is provided. The part 24 and the second support part 25 are provided on the substrate case 16 so as to support the switch board 17, and the switch is an electrostatic switch 18. Thereby, even if the foaming heat insulating material 6 varies in foaming at the time of door manufacture and the foaming pressure applied to the concave bottom surface of the substrate case 16 is partially different, the second support is applied to the jig on the door front side applied at the time of door manufacture. The flat surface of the concave bottom surface of the substrate case 16 is maintained by the contact of the portion 25, and the concave bottom surface serving as the reference surface of the first and second support portions 24, 25 has a high flatness. it can. Therefore, the accuracy of the distance between the electrostatic switch 18 and the cover 20 and the push-in amount management is improved, and the electrostatic switch 18 in which the distance management between the cover 20 is important is surely good. Switch operability and prevention of breakage of the switch part can be realized.

また、前記第二の支持部２５は貯蔵室方向において第一の支持部２４よりも短い寸法にするとともに剛性を持たせただけのものであるから、複雑な構成を必要とせず簡単かつ安価に提供することができる。   Further, since the second support portion 25 has a shorter dimension than the first support portion 24 in the direction of the storage chamber and has only rigidity, it is simple and inexpensive without requiring a complicated configuration. Can be provided.

更に、前記第一の支持部２４は先端部を曲面形状に構成して弾力性を持たせてあるから、ゴムなどの弾性部材を別途用意することなく第一の支持部２４の変形を可能とすることができ、コストダウンが図れる。   Further, since the first support portion 24 has a curved shape at the tip end portion and has elasticity, the first support portion 24 can be deformed without separately preparing an elastic member such as rubber. Cost reduction.

また、前記第二の支持部２５は第一の支持部２４とともに基板ケース１６に一体形成した構成としてあるから、これらを別々の部品とした場合に懸念される両部品間の寸法ばらつきを排除し、第一の支持部２４と第二の支持部２５の寸法関係を設計通り精度よく出すことができる。これによって、カバー２０と静電スイッチ１８との間の間隔とスイッチ基板１７の押し込み防止寸法とを容易かつ確実に最適管理でき、信頼性の高いものとすることができる。   In addition, since the second support portion 25 is integrally formed with the substrate case 16 together with the first support portion 24, the dimensional variation between the two parts, which is a concern when these are separate parts, is eliminated. The dimensional relationship between the first support portion 24 and the second support portion 25 can be accurately obtained as designed. As a result, the distance between the cover 20 and the electrostatic switch 18 and the push-in prevention dimension of the switch board 17 can be easily and reliably optimally managed, and the reliability can be improved.

また、前記第一の支持部２４はカバー２０のスイッチ操作部２３と対応する位置に配置してあるから、静電スイッチ１８とカバー２０との間の間隔を常に最適若しくは密着状態とすることができ、操作感度を良好なものに維持して操作性の良好なものとすることができる。   In addition, since the first support portion 24 is disposed at a position corresponding to the switch operation portion 23 of the cover 20, the interval between the electrostatic switch 18 and the cover 20 can always be optimal or in a close contact state. It is possible to maintain good operation sensitivity and good operability.

以上説明してきたようにこの冷蔵庫は、静電スイッチ１８を用いたスイッチの操作性を良好に維持しつつスイッチ部の破損を防止した信頼性の高い冷蔵庫とすることができるものであるが、上記実施の形態は本発明を実施するうえでの一例として示したものであり、本発明の目的を達成する範囲で種々変更可能であることは言うまでもない。   As described above, this refrigerator can be a highly reliable refrigerator that prevents damage to the switch part while maintaining good operability of the switch using the electrostatic switch 18. The embodiment is shown as an example in carrying out the present invention, and it goes without saying that various modifications can be made within the scope of achieving the object of the present invention.

例えば、スイッチは必ずしも静電スイッチ１８である必要はなく、クリック感のある一般的なスイッチでも良い。このようなスイッチの場合は静電スイッチほどの間隔管理精度を必要としないものの、そのスイッチのクリック操作感を維持しつつスイッチ部分の破損を防止できるという点で本発明の一形態となるものである。   For example, the switch does not necessarily have to be the electrostatic switch 18 and may be a general switch having a click feeling. In the case of such a switch, although the interval management accuracy is not as high as that of the electrostatic switch, it is an embodiment of the present invention in that the switch portion can be prevented from being damaged while maintaining the click feeling of the switch. is there.

以上のように本発明は、スイッチとカバーとの間の間隔を適切に保持して良好な操作性を確保できるとともに、スイッチが強く押圧されてもスイッチ基板が大きく押し込まれて破損するようなことがなく、信頼性の高い冷蔵庫とすることができ、一般用はもちろん業務用の冷蔵庫にも幅広く適用できる。   As described above, according to the present invention, the gap between the switch and the cover can be appropriately maintained to ensure good operability, and even if the switch is strongly pressed, the switch board is largely pushed and damaged. Therefore, it can be a highly reliable refrigerator, and can be widely applied to commercial refrigerators as well as general ones.

１ 冷蔵庫本体
２ 冷凍室（貯蔵室）
３ 冷蔵室（貯蔵室）
４ 外箱
５ 内箱
６ 発泡断熱材
７、８ 扉
９ スイッチ操作部
１０ 冷却室
１０ａ 冷却器
１１ 送風ファン
１２ 圧縮機
１３、１４ ダクト
１３ｂ 冷凍用冷気戻り口
１４ 収納棚
１５ 凹部
１６ 基板ケース
１７ スイッチ基板
１８ スイッチ（静電スイッチ）
１９ 表示体
２０ カバー
２０ａ 爪片部
２１ 筒状壁
２２ 係止突起
２３ スイッチ操作部
２４ 第一の支持部
２５ 第二の支持部 1 Refrigerator body 2 Freezer room (storage room)
3 Refrigerated room (storage room)
DESCRIPTION OF SYMBOLS 4 Outer box 5 Inner box 6 Foam heat insulating material 7, 8 Door 9 Switch operation part 10 Cooling chamber 10a Cooler 11 Blower fan 12 Compressor 13, 14 Duct 13b Refrigeration air return port 14 Storage shelf 15 Recess 16 Substrate case 17 Switch Board 18 switch (electrostatic switch)
DESCRIPTION OF SYMBOLS 19 Display body 20 Cover 20a Claw piece part 21 Cylindrical wall 22 Locking protrusion 23 Switch operation part 24 1st support part 25 2nd support part

Claims (6)

冷蔵庫本体と、前記冷蔵庫本体内に形成した貯蔵室と、前記貯蔵室の開口部を覆う扉と、前記扉の前記貯蔵室に接する面とは逆側の面に構成した凹部と、前記凹部に配置されスイッチを装備したスイッチ基板と、前記凹部と前記スイッチ基板とを覆うカバーと、前記スイッチ基板と前記凹部との間にあって、前記スイッチ基板を支持する第一の支持部及び第二の支持部とを備え、前記第一の支持部は前記カバーの前記貯蔵室方向への押圧により前記貯蔵室方向へ変形するものとし、前記第二の支持部は前記第一の支持部が所定以上変形した以降は当該第一の支持部に押圧力を加えても前記貯蔵室方向へは変形させない剛体としたことを特徴とする冷蔵庫。 A refrigerator main body, a storage chamber formed in the refrigerator main body, a door covering the opening of the storage chamber, a recess formed on a surface opposite to the surface of the door in contact with the storage chamber, and the recess A switch board provided with a switch, a cover that covers the recess and the switch board, and a first support part and a second support part that are between the switch board and the recess and support the switch board. The first support portion is deformed in the storage chamber direction by pressing the cover in the storage chamber direction, and the second support portion is deformed by a predetermined amount or more in the first support portion. Thereafter, the refrigerator is a rigid body that is not deformed in the direction of the storage chamber even when a pressing force is applied to the first support portion. 扉は発泡断熱材を充填した断熱構成とし、前記発泡断熱材に凹状の基板ケースを埋設して凹部を形成するとともに、第一の支持部及び第二の支持部は前記基板ケースに設けてスイッチ基板を支持する構成とし、かつ、スイッチを静電スイッチとした請求項１記載の冷蔵庫。 The door has a heat insulating structure filled with foam heat insulating material, and a concave substrate case is embedded in the foam heat insulating material to form a recess, and a first support portion and a second support portion are provided in the substrate case to provide a switch. The refrigerator according to claim 1, wherein the refrigerator is configured to support a substrate and the switch is an electrostatic switch. 第二の支持部は貯蔵室方向において第一の支持部よりも短くしたことを特徴とする請求項１又は２に記載の冷蔵庫。 The refrigerator according to claim 1 or 2, wherein the second support portion is shorter than the first support portion in the storage chamber direction. 第一の支持部は先端部を曲面形状に構成して弾力性を持たせたことを特徴とする請求項１〜３のいずれか１項に記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 3, wherein the first support portion has a tip portion formed in a curved surface shape so as to have elasticity. 第二の支持部は第一の支持部とともに基板ケースに一体形成したことを特徴とする請求項１〜４のいずれか１項に記載の冷蔵庫。 The refrigerator according to claim 1, wherein the second support portion is integrally formed with the substrate case together with the first support portion. 第一の支持部はカバーのスイッチ操作部に対応する位置に配置したことを特徴とする請求項１〜５のいずれか１項に記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 5, wherein the first support portion is disposed at a position corresponding to the switch operation portion of the cover.
JP2013006028A 2013-01-17 2013-01-17 refrigerator Expired - Fee Related JP6167281B2 (en)

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JP2019056500A (en) * 2017-09-20 2019-04-11 日立アプライアンス株式会社 refrigerator

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JP2019052795A (en) * 2017-09-15 2019-04-04 日立アプライアンス株式会社 Operation panel and refrigerator including the same
JP2019056500A (en) * 2017-09-20 2019-04-11 日立アプライアンス株式会社 refrigerator

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