JP4259956B2 - Air conditioner - Google Patents

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JP4259956B2
JP4259956B2 JP2003302210A JP2003302210A JP4259956B2 JP 4259956 B2 JP4259956 B2 JP 4259956B2 JP 2003302210 A JP2003302210 A JP 2003302210A JP 2003302210 A JP2003302210 A JP 2003302210A JP 4259956 B2 JP4259956 B2 JP 4259956B2
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electrical box
lid
board
box body
air conditioner
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JP2004170055A (en
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卓郎 西原
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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本発明は、メイン基板及びサブ基板を有する電装箱を備えた空気調和機に関する。   The present invention relates to an air conditioner including an electrical box having a main board and a sub board.

一般に、この種の空気調和機においては、空気調和機本体としての筐体の内側に、熱交換器、送風機及びプリント基板等の制御基板を収容した電装箱を備えており、そして、電装箱が、内部にメイン基板を配置した電装箱本体と、この電装箱本体の前面に設けられた開口部を覆うように蓋体を備え、この蓋体は、上記メイン基板の外端縁に基板面が対向するサブ基板及びこのサブ基板に連なる操作部を有するように構成したものが知られている（例えば、特許文献１参照。）。
特開平７−１２３６８号公報 Generally, in this type of air conditioner, an electrical equipment box containing a heat exchanger, a blower, and a control board such as a printed circuit board is provided inside the housing as the air conditioner body, and the electrical equipment box is An electrical box body having a main board disposed therein, and a lid so as to cover an opening provided on the front surface of the electrical box body, and the lid has a board surface on an outer edge of the main board. A configuration is known that includes an opposing sub-board and an operation unit connected to the sub-board (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 7-12368

しかし、前記した従来技術のものでは、サブ基板及びこのサブ基板に連なる操作部を有する蓋体が、電装箱本体の開口部に、ねじ止め或いはワンタッチクリップ等によって固定されるため、電装箱本体のメイン基板、或いは蓋体のサブ基板に過度の外力が作用し、それら基板が変形する等の心配があった。   However, in the above-described prior art, the lid having the sub-board and the operation unit connected to the sub-board is fixed to the opening of the electric box main body by screwing or a one-touch clip. There is a concern that an excessive external force acts on the main substrate or the sub-substrate of the lid and the substrates are deformed.

そこで、本発明の目的は、電装箱の組み付け時に、電装箱本体のメイン基板、或いは蓋体のサブ基板に過度の外力が作用するのを防ぐことが可能な空気調和機を提供することにある。   Accordingly, an object of the present invention is to provide an air conditioner capable of preventing an excessive external force from acting on the main board of the electrical equipment box body or the sub board of the lid when the electrical equipment box is assembled. .

本発明は、筐体自体がその取り付け壁面内に埋め込まれるビィルト・イン・タイプの空気調和機で、前記筐体の内部に熱交換器、送風機及び電装箱を備えた空気調和機において、前記電装箱は、一面に開口部を有するとともに内部にはメイン基板が配置された電装箱本体と、この電装箱本体の開口部を覆うように設けられ、前記メイン基板の外端縁に基板面が対向するサブ基板及びこのサブ基板に連なる操作部を有する蓋体と、前記電装箱本体を覆いながら前記蓋体の操作部を臨ませる窓を有し、前記筐体へ固定されるユニットカバーとを備え、
前記電装箱本体には、位置決めピンが設けられ、
前記蓋体は、パッキンを備える上蓋板と前記サブ基板を備える下蓋板とを重ね合わせて構成され、それぞれの蓋体には放熱用の通気部が設けられていると共に、前記位置決めピンと係合するピン孔が設けられており、前記位置決めピンとピン孔とが係合して該電装箱本体の前記開口部に当接して設けられ、前記ユニットカバーが前記筐体へ固定されることにより、該ユニットカバーとの間に介在する前記パッキンにより該蓋体が前記電装箱本体へ押圧されて設けられることを特徴とするものである。
The present invention relates to a built-in type air conditioner in which the casing itself is embedded in a mounting wall surface, and the air conditioner includes a heat exchanger, a blower, and an electrical box inside the casing. The box has an opening on one side and an electric box main body in which the main board is disposed inside, and is provided so as to cover the opening of the electric box main body, and the board surface faces the outer edge of the main board A sub-board and a lid having an operation unit connected to the sub-board, and a unit cover having a window for covering the operation unit of the lid while covering the electrical box main body and being fixed to the housing ,
The electrical box body is provided with positioning pins,
The lid body is configured by superposing an upper lid plate having a packing and a lower lid plate having the sub-board, and each lid body is provided with a ventilation portion for heat dissipation and is associated with the positioning pin. A pin hole is provided, the positioning pin and the pin hole are engaged and provided in contact with the opening of the electrical box body, and the unit cover is fixed to the housing, The lid is pressed against the electrical box main body by the packing interposed between the unit cover and the unit cover.

本発明では、筐体の内部に熱交換器、送風機及び電装箱を備えた空気調和機において、前記電装箱は、一面に開口部を有するとともに内部にはメイン基板が配置された電装箱本体と、この電装箱本体の開口部を覆うように設けられ、前記メイン基板の外端縁に基板面が対向するサブ基板及びこのサブ基板に連なる操作部を有する蓋体と、この蓋体の操作部を臨ませる窓が設けられたユニットカバーとを備え、このユニットカバーと前記蓋体との間にはパッキンを介在させた構成であるから、電装箱本体の開口部を蓋体で覆い、その上にユニットカバーをかぶせて固定する際、パッキンが圧縮されて蓋体が電装箱本体側に押圧されるため、電装箱本体内のメイン基板や蓋体のサブ基板に過度の外力が作用するのを防止でき、基板の変形を抑制できる。   In the present invention, in an air conditioner including a heat exchanger, a blower, and an electrical box inside a housing, the electrical box has an opening on one side and an electrical box body having a main board disposed therein. A lid that is provided so as to cover the opening of the electrical box body, and that has a substrate surface facing the outer edge of the main substrate, and an operation unit connected to the sub substrate, and an operation unit of the lid And a unit cover provided with a window that faces the cover, and a packing is interposed between the unit cover and the lid body, so that the opening of the electrical box body is covered with the lid body, Since the packing is compressed and the lid is pressed toward the electrical box body when the unit cover is fixed to the unit cover, excessive external force acts on the main board in the electrical box body and the sub-board of the lid. Can prevent the deformation of the substrate That.

以下、本発明の一実施例について図１〜図４の図面に基づき説明すると、図１において、１は室内の壁板であり、この壁板１の所定位置には、取付用開口２が形成されており、この取付用開口２の内側部分には、本発明の一実施例である空気調和機３が取付けられている。   DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In FIG. 1, reference numeral 1 denotes an indoor wall plate, and a mounting opening 2 is formed at a predetermined position of the wall plate 1. An air conditioner 3 according to an embodiment of the present invention is attached to the inner portion of the attachment opening 2.

前記空気調和機３は、図１に示すように、外枠となる筐体３Ａを備え、この筐体３Ａの内部には、略く字状に折り曲げられた熱交換器４が配設され、この熱交換器４には、冷媒圧縮機、四方弁、室外熱交換器および減圧装置が内蔵された図示しない室外機からの冷媒が供給されるようになされており、この熱交換器４の空気の流出側近傍には、例えば、クロスフローファン等からなる送風機６が配設されている。   As shown in FIG. 1, the air conditioner 3 includes a housing 3A serving as an outer frame. Inside the housing 3A, a heat exchanger 4 bent in a substantially square shape is disposed. The heat exchanger 4 is supplied with refrigerant from an outdoor unit (not shown) in which a refrigerant compressor, a four-way valve, an outdoor heat exchanger, and a decompression device are incorporated. A blower 6 made of, for example, a cross flow fan or the like is disposed in the vicinity of the outflow side.

前記筐体３Ａの前面には、吸込グリル７が配設されており、この吸込グリル７の内側には、フィルタ８が配設されている。そして、前記吸込グリル７の吸込口７Ａから吸い込まれた被調和室の空気は、フィルタ８で除塵された後に、熱交換器４に至り、ここで空気調和された後に、送風機６を介して吸込グリル７の下部に形成された吹出口７Ｂから被調和室内に吹き出される。   A suction grill 7 is disposed on the front surface of the housing 3 </ b> A, and a filter 8 is disposed inside the suction grill 7. The air in the chamber to be conditioned sucked from the suction port 7A of the suction grille 7 is removed by the filter 8 and then reaches the heat exchanger 4 where the air is conditioned and sucked through the blower 6. The air is blown into the room to be conditioned from the air outlet 7B formed at the lower part of the grill 7.

前記熱交換器４の下方にはドレンパン１１が配設され、このドレンパン１１には熱交換器４の表面に生じたドレンが滴下される。   A drain pan 11 is disposed below the heat exchanger 4, and drain generated on the surface of the heat exchanger 4 is dropped into the drain pan 11.

図２は、空気調和機３の正面図である。この空気調和機３の正面には、熱交換器４が露出し、この熱交換器４の図中右側には、筐体３Ａの縦方向のほぼ一杯に延在する電装箱２０が配置されている。   FIG. 2 is a front view of the air conditioner 3. The heat exchanger 4 is exposed on the front surface of the air conditioner 3, and an electrical box 20 is disposed on the right side of the heat exchanger 4 in the figure so as to extend almost fully in the longitudinal direction of the housing 3A. Yes.

前記電装箱２０には、図示を省略した制御基板が配置され、この制御基板には、送風機６のモータ制御線や、熱交換器４に付設された電磁弁の制御線等が接続されている。２１はユニットカバーである。   A control board (not shown) is disposed in the electrical box 20, and a motor control line of the blower 6 and a control line of an electromagnetic valve attached to the heat exchanger 4 are connected to the control board. . 21 is a unit cover.

図３は、電装箱２０の縦断面図であり、この電装箱２０は、図示を省略した止め具を介して筐体３Ａの内側に固定されており、そして、この電装箱２０は、前面に開口部２２Ｃを設けた箱形の電装箱本体２２と、この電装箱本体２２の開口部２２Ｃを前方から覆う蓋体２３とを備えて構成されている。   FIG. 3 is a vertical cross-sectional view of the electrical box 20, and the electrical box 20 is fixed to the inside of the housing 3A via a stopper (not shown). A box-shaped electrical box body 22 provided with an opening 22C, and a lid 23 that covers the opening 22C of the electrical box body 22 from the front are configured.

また、前記電装箱本体２２の内部には、制御基板を構成する一対のメイン基板２４が、互いに対向して、電装箱本体２２の内側に差し込まれることにより固定されている。前記蓋体２３は、電装箱本体２２の開口部２２Ｃに宛がわれて、その開口部２２Ｃを覆う構成である。   A pair of main boards 24 constituting a control board are fixed inside the electrical box main body 22 by being inserted into the electrical box main body 22 so as to face each other. The lid body 23 is configured to be addressed to and cover the opening portion 22C of the electrical box main body 22.

上述の段階では、蓋体２３の上端部２３Ａ及び下端部２３Ｂが、電装箱本体２２の受け部２２Ａ，２２Ｂに軽く当接している。   In the above-described stage, the upper end portion 23A and the lower end portion 23B of the lid body 23 are in light contact with the receiving portions 22A and 22B of the electrical box main body 22.

前記蓋体２３の略中央には、ほぼ矩形状に突出した操作パネル２５が形成されており、この操作パネル２５の内側には、前記メイン基板２４にコネクタ等を用いて接続されたサブ基板２６、及びこのサブ基板２６に制御線で接続された各種スイッチ類等の操作部２７が配置されている。そして、前記サブ基板２６は、メイン基板２４の外端縁２４Ａに対し、その基板面２６Ａが対向している。   An operation panel 25 that protrudes in a substantially rectangular shape is formed in the approximate center of the lid body 23, and a sub-board 26 that is connected to the main board 24 using a connector or the like inside the operation panel 25. In addition, an operation unit 27 such as various switches connected to the sub-board 26 by a control line is disposed. The sub-board 26 has a board surface 26 </ b> A facing the outer edge 24 </ b> A of the main board 24.

前記ユニットカバー２１は、操作パネル２５が臨む窓２１Ａを有し、このユニットカバー２１と蓋体２３との間にはパッキン３０が介装され、このパッキン３０はユニットカバー２１に押されてわずかに圧縮されている。このユニットカバー２１は、筐体３Ａにねじ２８を介して堅固に固定されている。   The unit cover 21 has a window 21A facing the operation panel 25, and a packing 30 is interposed between the unit cover 21 and the lid 23. The packing 30 is pushed slightly by the unit cover 21. It is compressed. The unit cover 21 is firmly fixed to the housing 3A via screws 28.

前記蓋体２３は、図４Ａ及びＢに示すように、上蓋板３１と下蓋板３２とを備え、これらを重ね合わせた後に、爪３３を折り曲げて、各蓋板３１，３２を重合させて構成している。   As shown in FIGS. 4A and 4B, the lid body 23 includes an upper lid plate 31 and a lower lid plate 32, and after overlapping them, the claw 33 is bent to superimpose the lid plates 31 and 32. It is configured.

前記下蓋板３２には２つの通風孔（通気部）３２Ａと、操作パネル２５が貫通する貫通孔３２Ｂと、ピン孔３２Ｃとが形成されている。   The lower cover plate 32 is formed with two ventilation holes (venting portions) 32A, a through hole 32B through which the operation panel 25 passes, and a pin hole 32C.

前記上蓋板３１には、通風孔３２Ａに整合する多数の円孔からなる通気孔群（通気部）３１Ａと、操作パネル２５が貫通する貫通孔３１Ｂと、ピン孔３１Ｃとが形成され、このピン孔３１Ｃ及び前記ピン孔３２Ｃには、電装箱本体２２に設けられた位置決めピン（図示せず）が係合される。   The upper cover plate 31 is formed with a vent group (vent) 31A composed of a number of circular holes aligned with the vent holes 32A, a through hole 31B through which the operation panel 25 passes, and a pin hole 31C. Positioning pins (not shown) provided on the electrical box main body 22 are engaged with the pin holes 31C and the pin holes 32C.

前記通気孔群３１Ａの中間部には、パッキン３０が貼られ、このパッキン３０は、上述したように、ユニットカバー２１に押されてわずかに圧縮し、この圧縮力で蓋体２３が固定されている。 A packing 30 is affixed to an intermediate portion of the vent hole group 31A. As described above, the packing 30 is pressed by the unit cover 21 and slightly compressed, and the lid 23 is fixed by this compression force. Yes.

前記した構成の蓋体２３が使用された場合、基板から発生した熱が、通気孔群３１Ａで拡散されて排熱される。通気孔群３１Ａの中間部には、パッキン３０が存在するため、このパッキン３０が仕切り壁となり、両通気孔群３１Ａからの排熱が混ざり合うことがなく、スムーズに排熱される。また、通気孔群３１Ａの中間部には、パッキン３０が存在することで、ユニットカバー２１と蓋体２３との間の距離が、パッキン３０によってほぼ一定に保たれるため、上述した排熱がよりスムーズになる。   When the lid 23 having the above-described configuration is used, heat generated from the substrate is diffused and exhausted by the air hole group 31A. Since the packing 30 exists in the middle part of the vent hole group 31A, the packing 30 serves as a partition wall, and the exhaust heat from both the vent hole groups 31A is not mixed and is smoothly exhausted. Further, since the packing 30 is present in the middle portion of the air hole group 31A, the distance between the unit cover 21 and the lid body 23 is kept almost constant by the packing 30, so that the above-described exhaust heat is reduced. It becomes smoother.

前記操作部２７は、図４Ｂに示すように、運転ランプ２７Ａ、タイマランプ２７Ｂ、サービス故障診断ランプ２７Ｃ等の各種ＬＥＤランプ類と、タッグスイッチ２７Ｄ、リモコンアドレススイッチ２７Ｅ、運転停止スイッチ２７Ｆ、スライドスイッチ２７Ｇ等の各種スイッチ類を備えて構成される。   As shown in FIG. 4B, the operation unit 27 includes various LED lamps such as an operation lamp 27A, a timer lamp 27B, a service failure diagnosis lamp 27C, a tag switch 27D, a remote control address switch 27E, an operation stop switch 27F, a slide switch. It is configured with various switches such as 27G.

本実施例では、電装箱本体２２を空気調和機３の筐体３Ａに固定し、この電装箱本体２２の開口部２２Ｃに蓋体２３を宛い、その上にユニットカバー２１をかぶせ、このユニットカバー２１をねじ２８で筐体３Ａに固定する構成となっており、このユニットカバー２１を固定した場合、パッキン３０が圧縮されて、蓋体２３が電装箱本体２２側に押圧される。   In the present embodiment, the electrical box main body 22 is fixed to the housing 3A of the air conditioner 3, the lid body 23 is directed to the opening 22C of the electrical box main body 22, and the unit cover 21 is placed thereon. The cover 21 is fixed to the housing 3A with a screw 28. When the unit cover 21 is fixed, the packing 30 is compressed and the lid 23 is pressed toward the electrical box body 22 side.

従来では、電装箱本体２２の開口部２２Ｃに、ねじで強固に蓋体２３を固定した場合、電装箱本体２２のメイン基板２４、或いは蓋体２３のサブ基板２６等に過度の外力が加わる恐れがある。   Conventionally, when the lid 23 is firmly fixed to the opening 22C of the electrical box main body 22 with a screw, an excessive external force may be applied to the main board 24 of the electrical box main body 22, the sub board 26 of the lid 23, or the like. There is.

しかしながら本実施例では、蓋体２３は、パッキン３０を介して緩やかに押圧されて、電装箱本体２２にセットされるため、電装箱本体２２のメイン基板２４、或いは蓋体２３のサブ基板２６等に過度の外力が作用することがなく、それらメイン基板２４やサブ基板２６の変形が抑制される。   However, in the present embodiment, the lid body 23 is gently pressed via the packing 30 and is set on the electrical box body 22, so that the main board 24 of the electrical box body 22, the sub board 26 of the lid body 23, etc. No excessive external force acts on the main substrate 24 and the deformation of the main substrate 24 and the sub substrate 26 is suppressed.

以上、一実施例に基づいて本発明を説明したが、本発明は、これに限定されるものではなく、種々変更が可能である。   As mentioned above, although this invention was demonstrated based on one Example, this invention is not limited to this, A various change is possible.

本発明に係る空気調和機の一実施例を示す縦断面図である。It is a longitudinal cross-sectional view which shows one Example of the air conditioner which concerns on this invention. ユニットカバーを外した状態の空気調和機の正面図である。It is a front view of the air conditioner of the state which removed the unit cover. 電装箱の断面図である。It is sectional drawing of an electrical equipment box. Ａは上蓋板を示し、Ｂは下蓋板を示す図である。A shows an upper cover plate, and B shows a lower cover plate.

符号の説明Explanation of symbols

３ 空気調和機
３Ａ 筐体
４ 熱交換器
６ 送風機
２０ 電装箱
２１ ユニットカバー
２１Ａ 窓
２２ 電装箱本体
２２Ｃ 電装箱本体の開口部
２３ 蓋体
２４ メイン基板
２５ 操作パネル
２６ サブ基板
２７ 操作部
３０ パッキン
３１ 上蓋板
３１Ａ 通気孔群（通気部）
３２ 下蓋板
３２Ａ 通風孔（通気部） DESCRIPTION OF SYMBOLS 3 Air conditioner 3A Case 4 Heat exchanger 6 Blower 20 Electrical box 21 Unit cover 21A Window 22 Electrical box body 22C Opening part of electrical box body 23 Cover body 24 Main board 25 Operation panel 26 Sub board 27 Operation part 30 Packing 31 Upper cover plate 31A Vent group (vent)
32 Lower lid plate 32A Ventilation hole (ventilation part)

Claims (1)

筐体自体がその取り付け壁面内に埋め込まれるビィルト・イン・タイプの空気調和機で、前記筐体の内部に熱交換器、送風機及び電装箱を備えた空気調和機において、
前記電装箱は、一面に開口部を有するとともに内部にはメイン基板が配置された電装箱本体と、
この電装箱本体の開口部を覆うように設けられ、前記メイン基板の外端縁に基板面が対向するサブ基板及びこのサブ基板に連なる操作部を有する蓋体と、
前記電装箱本体を覆いながら前記蓋体の操作部を臨ませる窓を有し、前記筐体へ固定されるユニットカバーとを備え、
前記電装箱本体には、位置決めピンが設けられ、
前記蓋体は、パッキンを備える上蓋板と前記サブ基板を備える下蓋板とを重ね合わせて構成され、それぞれの蓋体には放熱用の通気部が設けられていると共に、前記位置決めピンと係合するピン孔が設けられており、前記位置決めピンとピン孔とが係合して該電装箱本体の前記開口部に当接して設けられ、前記ユニットカバーが前記筐体へ固定されることにより、該ユニットカバーとの間に介在する前記パッキンにより該蓋体が前記電装箱本体へ押圧されて設けられることを特徴とする空気調和機。 In a built-in type air conditioner in which the casing itself is embedded in its mounting wall, in the air conditioner having a heat exchanger, a blower, and an electrical box inside the casing,
The electrical box has an opening on one side and an electrical box body in which a main board is disposed inside,
A cover body that is provided so as to cover the opening of the electrical box body, and that has a sub-board with the substrate surface facing the outer edge of the main board, and an operating portion connected to the sub-board,
A window having a window for facing the operation portion of the lid while covering the electrical box body, and a unit cover fixed to the housing;
The electrical box body is provided with positioning pins,
The lid body is configured by superposing an upper lid plate having packing and a lower lid plate having the sub-board, and each lid body is provided with a heat-dissipating ventilation portion and is associated with the positioning pin. A pin hole is provided, the positioning pin and the pin hole are engaged and provided in contact with the opening of the electrical box body, and the unit cover is fixed to the housing, An air conditioner characterized in that the lid is pressed against the electrical box body by the packing interposed between the unit cover and the unit cover .
JP2003302210A 2002-10-30 2003-08-27 Air conditioner Expired - Fee Related JP4259956B2 (en)

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