JP2011052880A

JP2011052880A - Refrigerator-freezer

Info

Publication number: JP2011052880A
Application number: JP2009201280A
Authority: JP
Inventors: Yuichi Umada; 雄一馬田; Mutsumi Kato; 睦加藤
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2009-09-01
Filing date: 2009-09-01
Publication date: 2011-03-17
Anticipated expiration: 2029-09-01
Also published as: JP5264655B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator-freezer having a simple structure and arranging lead wires between an outer case and an inner case with lead wires separated from the inner case and of smoothly filling a heat insulating material in every hole and corner between the outer case and inner case. <P>SOLUTION: A refrigerator-freezer includes: a heat insulating case body having a heat insulating material 4 filled between an outer case 2 and an inner case 3, an opened front face side and a plurality of compartments formed therein; and a door for opening/closing a front face opening of the heat insulating case body. This refrigerator-freezer further includes lead wires 25 connected to an electric substrate 24 provided in a lower part of the heat insulating case body, to connectors of electric components in the plurality of compartments, respectively and to a connector of a ceiling part electrical box 24 provided on a ceiling 5. The lead wires 25 are stored in a lead wire storage part 6c provided on a back face side of a side plate 6 of the outer case 2 and are arranged. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、冷凍冷蔵庫に係り、より詳しくは、冷蔵庫本体の下部に配置した電装基板に接続されたリード線を、冷蔵庫本体に設けた各室の電気部品のコネクタに接続すると共に、天井に設けた電装箱のコネクタに接続するためのリード線の配線構造に関するものである。 The present invention relates to a refrigerator-freezer. More specifically, the lead wire connected to the electrical board disposed at the lower part of the refrigerator main body is connected to the electrical component connector of each chamber provided in the refrigerator main body and provided on the ceiling. The present invention relates to a wiring structure of a lead wire for connecting to a connector of an electrical box.

従来の冷蔵庫に、庫内電装部品のリード線を冷凍室の内箱から離間させて支持する支持部と、冷凍室の外箱側壁に設けられてこの側壁を加熱する加熱手段と、リード線の一部を外箱側壁後部に固定する固定手段とを備え、リード線を冷凍室の内箱から離間させると共に、外箱を加熱する加熱手段からリード線に熱を伝えて、リード線の結露発生を防止するようにしたものがある（例えば、特許文献１参照）。 In a conventional refrigerator, a support part for supporting the lead wires of the electrical components in the refrigerator apart from the inner box of the freezer, a heating means provided on the outer box side wall of the freezer room and heating the side wall, Fixing means for fixing a part to the rear of the outer side wall of the outer box, the lead wire is separated from the inner box of the freezer compartment, and heat is transferred from the heating means for heating the outer box to the lead wire, causing condensation of the lead wire (For example, refer to Patent Document 1).

特開平５−２４０５６３号公報（第２−３頁、図１−３）JP-A-5-240563 (page 2-3, FIG. 1-3)

特許文献１の冷蔵庫においては、外箱と内箱との間に配線されたリード線に結露が発生するのを防止するために、支持部などの特別な部品を設けてリード線を内箱（低温部）から遠ざけたり、外箱を加熱する加熱手段からの熱をリード線に伝えたりしなければならないため、構造が複雑でコスト高になる。また、これらの部品は外箱と内箱の間に配設されるため、両者の間に充填する断熱材の流れの妨げになり、品質低下を招くおそれがあった。 In the refrigerator of Patent Document 1, in order to prevent dew condensation from occurring on the lead wire wired between the outer box and the inner box, a special part such as a support portion is provided to connect the lead wire to the inner box ( Since the heat from the heating means for heating the outer box must be transmitted to the lead wire, the structure is complicated and the cost is increased. In addition, since these parts are disposed between the outer box and the inner box, the flow of the heat insulating material filled between the two is hindered, and there is a possibility that the quality may be deteriorated.

さらに、リード線をテープで支持部に固定するようにしているが、断熱材の高温化によりテープが剥れ、リード線が内箱（低温部）に接近して結露が発生するおそれがあった。 Furthermore, the lead wire is fixed to the support portion with a tape, but the tape is peeled off due to the high temperature of the heat insulating material, and there is a possibility that the lead wire approaches the inner box (low temperature portion) and condensation occurs. .

本発明は、上記の課題を解決するためになされたもので、断熱箱体の下部に設けた電装基板に接続されたリード線を、特別な部品を用いることなく簡単な構造で、外箱と内箱との間において内箱（低温部）から離して上部まで配線することができ、また、外箱と内箱との間になんらの障害物もなく、両者の間に確実に断熱材を充填することのできる冷凍冷蔵庫を提供することを目的としたものである。 The present invention has been made to solve the above-described problems, and the lead wire connected to the electrical board provided at the lower part of the heat insulating box body has a simple structure without using special parts, and the outer box. It can be wired to the upper part away from the inner box (low temperature part) with the inner box, and there is no obstacle between the outer box and the inner box, and a heat insulating material is surely provided between the two It aims at providing the refrigerator-freezer which can be filled.

本発明に係る冷凍冷蔵庫は、外箱と内箱との間に断熱材が充填され、前面側が開口されて内部に複数の室が設けられた断熱箱体及び該断熱箱体の前面開口部を開閉する扉を有し、前記断熱箱体の下部に設けた電装基板に接続され、前記複数の室の電気部品のコネクタにそれぞれ接続されると共に、天井に設けた天井部電装箱のコネクタに接続されるリード線を設け、該リード線を、前記外箱の側板の背面側に設けたリード線収容部に収容して配線したものである。 The refrigerator-freezer according to the present invention includes a heat insulating box body in which a heat insulating material is filled between an outer box and an inner box, a front side is opened and a plurality of chambers are provided therein, and a front opening of the heat insulating box. It has a door that opens and closes, is connected to an electrical board provided at the lower part of the heat insulation box, and is connected to a connector of an electrical component of the plurality of chambers, and is connected to a connector of a ceiling part electrical box provided on the ceiling The lead wire is provided, and the lead wire is housed and wired in a lead wire housing portion provided on the back side of the side plate of the outer box.

本発明によれば、冷蔵庫本体の下部に設けた電装基板に接続されたリード線を、特別な部品を用いることなく簡単な構造で、外箱と内箱の間に内箱（低温部）から離して配線することにより、結露を生ずることなく上部まで導くことができ、また、外箱と内箱との間に障害物が存在しないため、両者の間に隅々まで断熱材を充填することができるので、信頼性の高い冷凍冷蔵庫を得ることができる。 According to the present invention, the lead wire connected to the electrical board provided in the lower part of the refrigerator main body has a simple structure without using a special part, and the inner box (low temperature part) is provided between the outer box and the inner box. By wiring away from each other, it is possible to guide to the upper part without causing condensation, and since there are no obstacles between the outer box and the inner box, it is necessary to fill the corners with insulation between them. Therefore, a highly reliable refrigerator-freezer can be obtained.

本発明の一実施の形態に係る一部を断面で示した冷凍冷蔵庫の正面図である。It is a front view of the refrigerator-freezer which showed a part concerning one embodiment of the present invention by a section. 図１の背面斜視図である。FIG. 2 is a rear perspective view of FIG. 1. 図２のＡ−Ａ断面拡大図である。It is an AA cross-sectional enlarged view of FIG.

図１は本発明の一実施の形態に係る冷凍冷蔵庫の正面図、図２は図１の背面斜視図である。
冷凍冷蔵庫を構成する冷蔵庫本体１は、金属板からなる外箱２と、合成樹脂成形品からなる内箱３と、外箱２と内箱３との間に充填された断熱材４とにより、前面側が開口された断熱箱体が形成され、この断熱箱体の上下方向を複数の仕切り板で仕切って、上部から下部に向って、冷蔵室１１、製氷室１２、切換室１３、冷凍室１４及び野菜室１５が設けられている（以下、これらの各室を総称して各室と記すことがある）。 FIG. 1 is a front view of a refrigerator-freezer according to an embodiment of the present invention, and FIG. 2 is a rear perspective view of FIG.
The refrigerator main body 1 constituting the refrigerator-freezer includes an outer box 2 made of a metal plate, an inner box 3 made of a synthetic resin molded product, and a heat insulating material 4 filled between the outer box 2 and the inner box 3. A heat insulating box having an opening on the front side is formed, and the vertical direction of the heat insulating box is partitioned by a plurality of partition plates. From the upper part to the lower part, the refrigerator compartment 11, the ice making room 12, the switching room 13, and the freezer compartment 14 are formed. And a vegetable room 15 (hereinafter, these rooms may be collectively referred to as each room).

そして、冷蔵室１１の前面開口部には開閉式の扉１１ａが、また、その他の各室１２，１３，１４，１５の前面開口部には、引出し式の扉１２ａ，１３ａ，１４ａ，１５ａがそれぞれ設けられている。また、冷蔵庫本体１の外箱２の両側板６，６の内側には、結露防止用の放熱パイプ１０が組み込まれている。 An openable door 11a is provided at the front opening of the refrigerator compartment 11, and drawer-type doors 12a, 13a, 14a, 15a are provided at the front openings of the other chambers 12, 13, 14, and 15. Each is provided. In addition, a heat radiating pipe 10 for preventing condensation is incorporated inside the side plates 6 and 6 of the outer box 2 of the refrigerator body 1.

また、冷蔵庫本体１の外箱２の両側板６，６の背面側の端部には、図３に示すように、外側から内側に折曲げたのち前面側に向ってＵ字状に折曲げてＵ字状折曲げ部６ａを形成し、ついで、背面側に向って逆Ｕ字状に折返して、Ｕ字状折曲げ部６ａとの間に挾持部６ｂが形成されている。なお、Ｕ字状折曲げ部６ａによって形成された空間部を、以下、リード線収容部６ｃという。 In addition, as shown in FIG. 3, the rear side ends of both side plates 6, 6 of the outer box 2 of the refrigerator body 1 are bent from the outside to the inside and then bent into a U shape toward the front side. Then, a U-shaped bent portion 6a is formed, and then folded back in an inverted U-shape toward the back surface, so that a gripping portion 6b is formed between the U-shaped bent portion 6a. The space formed by the U-shaped bent portion 6a is hereinafter referred to as a lead wire accommodating portion 6c.

また、背面板７の両端部は、前面側に向ってほぼ直角に折曲げられて連結部７ａが形成されており、この連結部７ａを側板６の挾持部６ｂに嵌入することにより、背面板７が両側板６，６の背面側に一体に結合される。 Further, both end portions of the back plate 7 are bent at a substantially right angle toward the front side to form a connecting portion 7a. By fitting the connecting portion 7a into the holding portion 6b of the side plate 6, the back plate 7 is integrally coupled to the back side of the side plates 6 and 6.

冷蔵庫本体１の下部の背面側には、圧縮機など（図示せず）が設置され、背面カバー２１で覆われた機械室２０が設けられており、機械室２０の上部には、電装基板２３等を有する電装箱２２が設けられている。２４は冷蔵庫本体１の天井５に設けられて、冷蔵室１１の扉１１ａに設けた結露防止ヒータ（図示せず）に給電するためのコネクタ等を備えた天井部電装箱である。 A compressor or the like (not shown) is installed on the back side of the lower portion of the refrigerator main body 1, and a machine room 20 covered with a back cover 21 is provided. Etc. The electrical equipment box 22 which has etc. is provided. Reference numeral 24 denotes a ceiling electrical box that is provided on the ceiling 5 of the refrigerator body 1 and includes a connector for supplying power to a dew condensation prevention heater (not shown) provided on the door 11 a of the refrigerator compartment 11.

電装基板２３に接続された複数本のリード線２５は、図３に示すように、冷蔵庫本体１の側板６に設けたリード線収容部６ｃに導かれ、図１、図２に示すように、リード線収容部６ｃに沿って上方に向って配線され、天井５に設けた天井部電装箱２４のコネクタに接続されると共に、その途中において、各室１１〜１５に設けた電気部品のコネクタ（図示せず）にそれぞれ接続される。 A plurality of lead wires 25 connected to the electrical board 23 are guided to a lead wire accommodating portion 6c provided on the side plate 6 of the refrigerator body 1 as shown in FIG. 3, and as shown in FIGS. It is wired upward along the lead wire accommodating portion 6c and connected to the connector of the ceiling electrical box 24 provided on the ceiling 5, and in the middle of the connector of electrical components provided in each chamber 11-15 ( (Not shown).

本発明においては、先ず、電装基板２３に接続された複数本のリード線２５をリード線収容部６ｃに収容し、各室１１〜１５の電気部品のコネクタ及び天井部電装箱２４のコネクタにそれぞれ接続したのち、背面板７をその連結部７ａを側板６の挾持部６ｂに嵌入して両側板６，６の背面に取付ける。ついで、背面板７に設けた断熱材注入口８から、外箱２と内箱３との間に流動状の断熱材４を注入し、充填する。 In the present invention, first, a plurality of lead wires 25 connected to the electrical board 23 are accommodated in the lead wire accommodating portion 6c, and are respectively connected to the connectors of the electrical components in the chambers 11 to 15 and the connector of the ceiling electrical box 24. After the connection, the back plate 7 is attached to the back surfaces of the side plates 6 and 6 by fitting the connecting portion 7 a into the holding portion 6 b of the side plate 6. Next, the fluid heat insulating material 4 is injected between the outer box 2 and the inner box 3 from the heat insulating material injection port 8 provided on the back plate 7 and filled.

このとき、リード線２５は、図３に示すように、断熱材４によりリード線収容部６ｃの最奥部（背面側）に押し付けられ、断熱材４が固化することによりその位置に固定される。また、外箱２と内箱３との間には、特許文献１の発明のように支持部等の部品が存在しないので、断熱材４が円滑に流入されて隅々まで確実に充填することができる。なお、図３において、３ａは外箱２と内箱３との間に断熱材４を介して形成され、各室１１〜１５に冷気を供給するための冷気路である。 At this time, as shown in FIG. 3, the lead wire 25 is pressed against the innermost part (rear side) of the lead wire accommodating portion 6 c by the heat insulating material 4, and is fixed at that position by the heat insulating material 4 solidifying. . Moreover, since there are no parts such as a support portion between the outer box 2 and the inner box 3 as in the invention of Patent Document 1, the heat insulating material 4 is smoothly flowed in and surely filled into every corner. Can do. In FIG. 3, reference numeral 3 a denotes a cold air passage formed between the outer box 2 and the inner box 3 via the heat insulating material 4 to supply cold air to the respective chambers 11 to 15.

本発明によれば、リード線２５は内箱３（低温部）から離れたリード線収容部６ｃ内に収容されているので、結露が発生するおそれがなく、そのため、リード線２５を放熱パイプ１０で加熱する必要もない。
また、リード線２５は外箱２の側板６の背面側を曲げ加工して形成したリード線収容部６ｃ内に収容され、断熱材４で固定されているため、リード線２５を支持するための特別な部品やテープなどを必要としないので、構造が簡単でコストを低減することができる。 According to the present invention, since the lead wire 25 is accommodated in the lead wire accommodating portion 6c separated from the inner box 3 (low temperature portion), there is no risk of condensation, so that the lead wire 25 is connected to the heat radiating pipe 10. There is no need to heat with.
Moreover, since the lead wire 25 is accommodated in the lead wire accommodating portion 6c formed by bending the back side of the side plate 6 of the outer box 2 and is fixed by the heat insulating material 4, the lead wire 25 is used to support the lead wire 25. Since no special parts or tape is required, the structure is simple and the cost can be reduced.

さらに、外箱２と内箱３との間に断熱材４を充填するにあたっては、断熱材４の流れを妨げるような部品等が存在しないので、断熱材４を隅々まで十分に行きわたらせることができ、これにより、信頼性の高い冷凍冷蔵庫を得ることができる。 Further, when the heat insulating material 4 is filled between the outer box 2 and the inner box 3, there is no part or the like that obstructs the flow of the heat insulating material 4, so that the heat insulating material 4 is sufficiently spread to every corner. Thus, a highly reliable refrigerator-freezer can be obtained.

上記の説明では、図示の冷凍冷蔵庫に本発明を実施した場合を示したが、これに限定するものではなく、他の構造の冷凍冷蔵庫にも本発明を実施することができる。 In the above description, the case where the present invention is implemented in the illustrated refrigerator-freezer is shown. However, the present invention is not limited to this, and the present invention can also be implemented in a refrigerator-freezer having another structure.

１冷蔵庫本体、２外箱、３内箱、４断熱材、５天井、６側板、６ａＵ字状折曲げ部、６ｂ挾持部、６ｃリード線収容部、７背面板、７ａ連結部、８断熱材注入口、１０放熱パイプ、２０機械室、２２電装箱、２３電装基板、２４天井部電装箱、２５リード線。 DESCRIPTION OF SYMBOLS 1 Refrigerator main body, 2 outer box, 3 inner box, 4 heat insulating material, 5 ceiling, 6 side plate, 6a U-shaped bending part, 6b clamping part, 6c lead wire accommodating part, 7 back plate, 7a connection part, 8 heat insulation Material inlet, 10 heat radiation pipe, 20 machine room, 22 electrical box, 23 electrical board, 24 ceiling electrical box, 25 lead wires.

Claims

外箱と内箱との間に断熱材が充填され、前面側が開口されて内部に複数の室が設けられた断熱箱体及び該断熱箱体の前面開口部を開閉する扉を有し、
前記断熱箱体の下部に設けた電装基板に接続され、前記複数の室の電気部品のコネクタにそれぞれ接続されると共に、天井に設けた天井部電装箱のコネクタに接続されるリード線を設け、
該リード線を、前記外箱の側板の背面側に設けたリード線収容部に収容して配線したことを特徴とする冷凍冷蔵庫。 A heat insulating material is filled between the outer box and the inner box, and the front side is opened and a plurality of chambers are provided inside, and a door that opens and closes the front opening of the heat insulating box.
Connected to the electrical board provided at the lower part of the heat insulation box, connected to the electrical component connectors of the plurality of chambers, and provided with lead wires connected to the connectors of the ceiling electrical box provided on the ceiling,
A refrigerator-freezer characterized in that the lead wire is housed and wired in a lead wire housing portion provided on the back side of the side plate of the outer box.

前記リード線収容部を、前記断熱箱体の外箱の両側板の背面側を外側から内側に折曲げたのち前面側に向って折曲げてＵ字状の折曲げ部を設け、該Ｕ字状の折曲げ部で形成された空間部によって構成したことを特徴とする請求項１記載の冷凍冷蔵庫。 The U-shaped bent portion is provided by bending the lead wire accommodating portion from the outside to the inside after bending the back side of both side plates of the outer box of the heat insulating box body toward the front side. 2. The refrigerator-freezer according to claim 1, wherein the refrigerator is configured by a space formed by a bent portion.

前記リード線収容部を、前記断熱箱体の外箱の両側板の背面側を外側から内側に折曲げたのち前面側に向ってＵ字状に折曲げ、さらに背面側に向って逆Ｕ字状に折返して前記Ｕ字状の折曲げ部との間に背面板の挾持部を設け、前記Ｕ字状の折曲げ部によって形成された空間部によって構成したことを特徴とする請求項１記載の冷凍冷蔵庫。 The lead wire accommodating portion is bent in a U shape toward the front side after the back side of both side plates of the outer box of the heat insulation box body is bent from the outside to the inside, and is further inverted U-shaped toward the back side. 2. A back plate holding portion is provided between the U-shaped bent portion and the U-shaped bent portion, and the space portion is formed by the U-shaped bent portion. Freezer refrigerator.

前記電装基板に接続されたリード線を前記リード線収容部に導いて、該リード線を前記複数の室の電気部品のコネクタにそれぞれ接続すると共に、天井部電装箱のコネクタに接続し、前記両側板の背面側の背面板を取付けて、該背面板に設けた断熱材注入口から前記リード線収容部を含む外箱と内箱との間に断熱材を充填したことを特徴とする請求項１〜３のいずれかに記載の冷凍冷蔵庫。 Lead wires connected to the electrical circuit board are led to the lead wire housing portions, the lead wires are connected to connectors of electrical components of the plurality of chambers, and are connected to connectors of a ceiling electrical box. A back plate on the back side of the plate is attached, and a heat insulating material is filled between an outer box and an inner box including the lead wire accommodating portion from a heat insulating material inlet provided in the back plate. The refrigerator-freezer in any one of 1-3.