JP4013480B2

JP4013480B2 - Air conditioner outdoor heat exchanger temperature sensor holding device

Info

Publication number: JP4013480B2
Application number: JP2001006042A
Authority: JP
Inventors: 哲夫清; 英明中川; 俊治西塚; 昭佳近澤
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2001-01-15
Filing date: 2001-01-15
Publication date: 2007-11-28
Anticipated expiration: 2021-01-15
Also published as: JP2002213846A

Description

【０００１】
【発明の属する技術分野】
本発明は空気調和機に関するものであり、冷凍サイクルからの除霜運転をするため室外熱交換器温度を検知するセンサーの保持装置に関するものである。
【０００２】
【従来の技術】
従来、空気調和機では保護カバー付の室外熱交換器温度センサーを密着するためには、冷凍サイクルの銅配管に銅製の筒をロウ付けしこの板厚で保護カバーの段差を吸収し、且つ板バネを使用して密着性を保たせる構成をとっていた。
【０００３】
図２（ａ）および図２（ａ）のＡ部を示す図２（ｂ）は、従来の空気調和機における保護カバー付の室外熱交換器温度センサーを有する配管部分の側面図である。図２に示すように、１は室外熱交換器、２は室外熱交換器温度センサー、３は膨張弁、４は四方弁、５は室外熱交換器温度センサー保持具、６は前記センサー２のリード線、７は内外接続ターミナルブロック、８は電源ブロック、９は板バネ、１０は保護カバーである。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記のような構成の空気調和機では、以下のような課題があった。即ち、組立部品が多く作業には熟練技能を有する作業者が必要であり、且つ室外熱交換器温度センサーと冷凍サイクルの銅配管との密着を板バネの２点で確保しているために密着性のバラツキが発生しやすい構造であった。
【０００５】
本発明は、上記課題を解決しようとなされたもので、空気調和機において、除霜運転の制御を行うために設けた保護カバー付の室外熱交換器温度センサーを保持する装置であって、前記室外熱交換器温度センサーの本体を金属の円筒形状に形成し、断面が楕円状の保持具で前記本体を固定し、前記空気調和機の冷凍サイクルの銅配管のくびれた部分に前記保護カバーを沿わせて前記室外熱交換器温度センサーを前記銅配管と密着するように保持する構成とし、組み立て時の熟練作業を不要とし、室外熱交換器温度センサーと配管との密着性の向上を図った物である。
【０００６】
また、本発明は冷凍サイクルの銅配管にくびれを設けた部分で保護カバー付の室外熱交換器温度センサーの保護カバー部分を逃げて、冷凍サイクルの銅配管と保護カバー付の室外熱交換器温度センサーとの密着性改善を行い除霜制御の精度向上を行うことを目的とする。
【０００７】
【課題を解決するための手段】
上記課題を解決するために本発明の空気調和機は、除霜運転の制御を行うために設けた保護カバー付の室外熱交換器温度センサーを楕円状の板バネ保持具の片側にセンサー本体の円筒サイズよりやや小さな円筒形状で形成し上面よりセンサー本体を挿入し挟み固定してから、冷凍サイクルの銅配管にくびれを設けた部分に保護カバーを沿わせて室外熱交換器温度センサーを冷凍サイクルの銅配管と密着するように保持する構成としたものである。
【０００８】
【発明の実施の形態】
上記課題を解決するための請求項１記載の発明は、空気調和機において、除霜運転の制御を行うために設けた保護カバー付の室外熱交換器温度センサーを楕円状の板バネ保持具の片側にセンサー本体の円筒サイズよりやや小さな円筒形状で形成し上面よりセンサー本体を挿入し挟み固定してから、冷凍サイクルの銅配管に室外熱交換器温度センサーを冷凍サイクルの銅配管と密着するように保持する構成としたものである。
【０００９】
請求項２に記載の発明は、楕円状の板バネ保持具の片側にセンサー本体を挟み込む形状をセンサー本体の円筒サイズよりやや小さな円筒形状で上面より挿入し挟み固定し、且つ冷凍サイクルの銅配管へ固定するまで抜け落ちないようにした単純形状構造より作業の単純化・固定作業の安定化を図ることができる。
【００１０】
請求項３に記載の発明は、室外熱交換器温度センサーの保護カバーを避けるくびれを冷凍サイクルの銅配管に設け、室外熱交換器温度センサーと冷凍サイクルの銅配管の密着性を妨げることなく確実に密着・保持することができ、室外熱交換器温度センサ−の精査向上と固定作業を安定化できる。
（実施の形態１）
図１（ａ）および図１（ａ）のＢ部を示す図１（ｂ）は、本発明の実施の形態１における空気調和機の側面構成図である。図に示すように、１は室外熱交換器、２は室外熱交換器温度センサー、３は膨張弁、４は四方弁、５は室外熱交換器温度センサー保持具、６は前記センサー２のリード線、７は内外接続ターミナルブロック、８は電源ブロック、１０は保護カバーである。
【００１１】
図１（ｃ）は室外熱交換器温度センサー２を室外熱交換器温度センサー保持具５に取り付けた状態を上面より見た図であり、室外熱交換器温度センサー２の先端アール形状により容易に挿入セット出来る形状になっている。
【００１２】
また図１（ｃ）は室外熱交換器温度センサー保持具５に挿入セットした室外熱交換器温度センサー２を冷凍サイクルの銅配管に取り付けた状態を上面より見た図であり、保護カバー１０付の室外熱交換器温度センサー２と冷凍サイクルの銅配管が確実に接触し、且つ保護カバー付の室外熱交換器温度センサー２の外れを防止する形状になっている。
【００１３】
又、図１（ｂ）には、保護カバー１０付の室外熱交換器温度センサー２と冷凍サイクルの銅配管が確実に接触するように配管にくびれを設け設けた形状になっている。
【００１４】
【発明の効果】
上記実施例でも明かなように、室外熱交換器温度センサーと楕円状の板バネ保持具と冷凍サイクルの銅配管にくびれを設けた配管の組合せにより、楕円状の板バネ保持具に室外熱交換器温度センサーを挿入固定する組立作業時に外れ落ちる等の不具合が解消され組立作業性の向上等の効果を奏する。
【００１５】
又、冷凍サイクルの銅配管に組み付ける作業もくびれを設けたことにより、取付位置の規制が少なくなり組立作業性の向上等の効果を奏する。
【図面の簡単な説明】
【図１】（ａ）は、本発明の実施の形態における室外機の内部側面図
（ｂ）は、同要部側面図
（ｃ）は、同要部平面図
【図２】（ａ）は、従来の室外機の内部側面図
（ｂ）は、同要部側面図
【符号の説明】
１室外熱交換器
２室外熱交換器温度センサー
５室外熱交換器温度センサー保持具
１０保護カバー[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner, and more particularly to a sensor holding device that detects an outdoor heat exchanger temperature in order to perform a defrosting operation from a refrigeration cycle .
[0002]
[Prior art]
Conventionally, in an air conditioner, in order to closely attach an outdoor heat exchanger temperature sensor with a protective cover, a copper tube is brazed to a copper pipe of a refrigeration cycle, and the thickness of the protective cover is absorbed by this plate thickness. It was configured to use a spring to maintain adhesion.
[0003]
2 (a) and FIG. 2 (b) showing part A of FIG. 2 (a) are side views of a pipe portion having an outdoor heat exchanger temperature sensor with a protective cover in a conventional air conditioner. As shown in FIG. 2, 1 is an outdoor heat exchanger, 2 is an outdoor heat exchanger temperature sensor, 3 is an expansion valve, 4 is a four-way valve, 5 is an outdoor heat exchanger temperature sensor holder, and 6 is the sensor 2. Lead wires, 7 is an internal / external connection terminal block, 8 is a power supply block, 9 is a leaf spring, and 10 is a protective cover.
[0004]
[Problems to be solved by the invention]
However, the air conditioner configured as described above has the following problems. In other words, there are many assembly parts, and skilled workers are required for work, and the close contact between the outdoor heat exchanger temperature sensor and the copper piping of the refrigeration cycle is secured by two points of the leaf spring. It was a structure in which variations in the nature were likely to occur.
[0005]
The present invention has been made to solve the above-mentioned problems, and is an apparatus for holding an outdoor heat exchanger temperature sensor with a protective cover provided for controlling a defrosting operation in an air conditioner, The body of the outdoor heat exchanger temperature sensor is formed in a metal cylindrical shape, the body is fixed with a holder having an elliptical cross section, and the protective cover is attached to the constricted portion of the copper piping of the refrigeration cycle of the air conditioner. The outdoor heat exchanger temperature sensor is held in close contact with the copper pipe, so that skillful work during assembly is not required, and the adhesion between the outdoor heat exchanger temperature sensor and the pipe is improved. It is a thing.
[0006]
Further, the present invention escapes the protective cover portion of the outdoor heat exchanger temperature sensor with a protective cover at the portion where the constriction is provided in the copper piping of the refrigeration cycle, and the outdoor heat exchanger temperature with the copper piping of the refrigeration cycle and the protective cover The purpose is to improve the defrosting control accuracy by improving the adhesion with the sensor.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the air conditioner of the present invention has an outdoor heat exchanger temperature sensor with a protective cover provided to control the defrosting operation on one side of an elliptical leaf spring holder. Formed in a slightly smaller cylinder size than the cylinder size, insert and fix the sensor body from the top, and then place the protective cover along the constricted part of the copper piping of the refrigeration cycle to place the outdoor heat exchanger temperature sensor in the refrigeration cycle It is set as the structure hold | maintained so that it may closely_contact | adhere to copper piping.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 for solving the above-described problem is that, in an air conditioner , an outdoor heat exchanger temperature sensor with a protective cover provided for controlling the defrosting operation is replaced with an elliptical leaf spring holder. Form a cylindrical shape slightly smaller than the cylinder size of the sensor body on one side, insert the sensor body from the upper surface and fix it, and then attach the outdoor heat exchanger temperature sensor to the copper piping of the refrigeration cycle in close contact with the copper piping of the refrigeration cycle It is set as the structure hold | maintained.
[0009]
According to the second aspect of the present invention, a shape in which the sensor body is sandwiched on one side of the elliptical leaf spring holder is inserted and fixed from the upper surface in a cylindrical shape slightly smaller than the cylinder size of the sensor body, and the copper piping of the refrigeration cycle It is possible to simplify the work and stabilize the fixing work because of the simple shape structure that prevents it from coming off until it is fixed to the head.
[0010]
According to the third aspect of the present invention, a constriction for avoiding the protective cover of the outdoor heat exchanger temperature sensor is provided in the copper pipe of the refrigeration cycle, and the adhesion between the outdoor heat exchanger temperature sensor and the copper pipe of the refrigeration cycle is reliably prevented. It is possible to closely adhere to and hold, and to improve the examination of the outdoor heat exchanger temperature sensor and to stabilize the fixing work.
(Embodiment 1)
1 (a) and FIG. 1 (b) showing part B of FIG. 1 (a) are side configuration diagrams of the air conditioner according to Embodiment 1 of the present invention. As shown in the figure, 1 is an outdoor heat exchanger, 2 is an outdoor heat exchanger temperature sensor, 3 is an expansion valve, 4 is a four-way valve, 5 is an outdoor heat exchanger temperature sensor holder, and 6 is a lead of the sensor 2. Reference numeral 7 denotes an internal / external connection terminal block, 8 denotes a power supply block, and 10 denotes a protective cover.
[0011]
FIG. 1C is a view of the outdoor heat exchanger temperature sensor 2 attached to the outdoor heat exchanger temperature sensor holder 5 as viewed from above, and it is easier to use due to the rounded shape of the tip of the outdoor heat exchanger temperature sensor 2. The shape can be inserted and set.
[0012]
FIG. 1C is a top view of the state where the outdoor heat exchanger temperature sensor 2 inserted and set in the outdoor heat exchanger temperature sensor holder 5 is attached to the copper pipe of the refrigeration cycle. The outdoor heat exchanger temperature sensor 2 and the copper pipe of the refrigeration cycle are in reliable contact with each other, and the outdoor heat exchanger temperature sensor 2 with a protective cover is prevented from coming off.
[0013]
In FIG. 1B, the outdoor heat exchanger temperature sensor 2 with the protective cover 10 and the copper pipe of the refrigeration cycle are provided with a constriction so that the pipe is constricted.
[0014]
【The invention's effect】
As is clear from the above embodiment, the outdoor heat exchanger temperature sensor, the elliptical leaf spring holder, and the piping provided with a constriction in the copper piping of the refrigeration cycle, the outdoor heat exchange with the elliptical leaf spring holder. Troubles such as falling off during assembly work for inserting and fixing the device temperature sensor are eliminated, and effects such as improvement of assembly workability are achieved.
[0015]
In addition, since the work for assembling the copper pipe of the refrigeration cycle is provided with a constriction, the restriction of the mounting position is reduced, and the effect of improving the assembling workability is obtained.
[Brief description of the drawings]
FIG. 1A is an internal side view of an outdoor unit according to an embodiment of the present invention. FIG. 1B is a side view of the main part. FIG. 2C is a plan view of the main part. The side view of the interior of a conventional outdoor unit (b) is the side view of the main part.
DESCRIPTION OF SYMBOLS 1 Outdoor heat exchanger 2 Outdoor heat exchanger temperature sensor 5 Outdoor heat exchanger temperature sensor holder 10 Protection cover

Claims

In the air conditioner, a device for holding the outdoor heat exchanger temperature sensor with a protective cover which is provided in order to control the defrosting operation, forms the body of the outdoor heat exchanger temperature sensor to the cylindrical shape of the metal and cross section to fix the body in an elliptical shape of the holder, and wherein the outdoor heat exchanger temperature sensors placed along the protective cover copper piping constricted portion of the copper pipe of the refrigeration cycle of the air conditioner An air conditioner outdoor heat exchanger temperature sensor holding device configured to be held in close contact with each other.

The outdoor heat exchanger for an air conditioner according to claim 1, wherein the sensor body is sandwiched and fixed in a cylindrical shape slightly smaller than the cylindrical size of the sensor body by inserting the sensor body on one side of the metal sensor holding plate. Temperature sensor holding device.

The air according to claim 1, wherein a constriction that avoids the protective cover of the outdoor heat exchanger temperature sensor is provided in the copper piping of the refrigeration cycle, and the adhesion between the outdoor heat exchanger temperature sensor and the copper piping of the refrigeration cycle is ensured. The outdoor heat exchanger temperature sensor holding device of the harmony machine.