JP4832398B2

JP4832398B2 - Compressor

Info

Publication number: JP4832398B2
Application number: JP2007267396A
Authority: JP
Inventors: 篤義深谷; 太郎加藤; 谷　　真男; 聡経新井
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2007-10-15
Filing date: 2007-10-15
Publication date: 2011-12-07
Anticipated expiration: 2027-10-15
Also published as: JP2009097361A

Description

この発明は、例えば冷凍装置、空調装置及び給湯装置などに使用される圧縮機に関するもので、さらに詳しくは圧縮機のシェル温度を検知する温度センサーを保持するサーモホルダー及び圧縮機のガラス端子を保護するターミナルカバーに関するものである。 The present invention relates to a compressor used in, for example, a refrigeration apparatus, an air conditioner, and a hot water supply apparatus, and more specifically, a thermo holder that holds a temperature sensor that detects a shell temperature of the compressor and a glass terminal of the compressor. It relates to the terminal cover.

温度センサーの外形寸法と略同一大きさのセンサー保持部では、空間寸法の寸法がばらついた場合に圧縮機温度を正確に測定できない場合があり、最悪の場合は、センサーが圧縮機シェルに接触しない場合があった。また、保護カバーボルトで固定する方法では、一点での固定のため、保護カバーの成型具合いによっては、温度センサーが十分に押付けられずに温度測定に誤差の生じることがあった。そこで、その端面から所定の寸法だけ温度センサーを突出させて保持するセンサー保持部を持つセンサーホルダーであって、センサー保持部が温度測定部位に押着されるようにセンサーホルダー本体をバネで固定したセンサーホルダーが提案されている（例えば、特許文献１参照）。
特開２００５−３０８３６０号公報 If the sensor holder is approximately the same size as the external dimensions of the temperature sensor, the compressor temperature may not be measured accurately if the spatial dimensions vary. In the worst case, the sensor does not touch the compressor shell. There was a case. Further, in the method of fixing with the protective cover bolt, since the fixing is performed at one point, the temperature sensor may not be sufficiently pressed depending on how the protective cover is molded, and an error may occur in temperature measurement. Therefore, it is a sensor holder having a sensor holding part that protrudes and holds a temperature sensor by a predetermined dimension from its end face, and the sensor holder body is fixed with a spring so that the sensor holding part is pressed against the temperature measurement site. A sensor holder has been proposed (see, for example, Patent Document 1).
JP-A-2005-308360

しかしながら、上記特許文献１のものは、温度センサーの外形寸法と略同一大きさのセンサー保持部では、センサー保持部の奥行き寸法が大きめにばらついた場合にセンサー保持部の奥部にセンサーが入り込んでしまい、圧縮機表面に接触せず、圧縮機温度を正確に測定できない場合があった。また、長期にわたる使用でターミナルカバーが経年劣化し、センサー保持部が変形して温度センサーが十分に押し付けられずに温度測定に誤差の生ずることがあった。 However, in the case of the above-mentioned Patent Document 1, in the sensor holding part having substantially the same size as the outer dimension of the temperature sensor, the sensor enters the inner part of the sensor holding part when the depth dimension of the sensor holding part varies widely. As a result, the compressor temperature may not be accurately measured without contacting the compressor surface. In addition, the terminal cover may deteriorate over time due to long-term use, the sensor holding part may be deformed, and the temperature sensor may not be sufficiently pressed, resulting in an error in temperature measurement.

この発明は、上記のような課題を解決するためになされたもので、取付けが簡便で長期間使用に対する経年劣化に強く、確実な温度測定を可能とするサーモホルダー及びターミナルカバーを備えた圧縮機を提供することを目的とする。 The present invention has been made to solve the above-described problems, and is a compressor equipped with a thermo holder and a terminal cover that is easy to mount, resistant to aging deterioration over a long period of use, and enables reliable temperature measurement. The purpose is to provide.

この発明に係る圧縮機は、内部に圧縮要素と、この圧縮要素を駆動する電動要素とを収納する密閉容器と、密閉容器に設けられ、電動要素に電力を供給する中継点になる気密端子と、気密端子の近傍に設けられ、密閉容器に対し略垂直方向に立設する第１の立設部及び第２の立設部を有する金属製のターミナルプレートと、気密端子を覆う樹脂製のターミナルカバーと、ターミナルプレートの第１の立設部及び第２の立設部に係合してターミナルカバーを密閉容器に固定する弾性部材と、密閉容器の温度を検出する圧縮機温度センサーと、圧縮機温度センサーを密閉容器に密着するように保持するセンサー保持部と、ターミナルプレートの第２の立設部に係合する係合部とを有する金属製のサーモホルダーとを備え、サーモホルダーは、ターミナルカバーが弾性部材で密閉容器に固定される場合に、ターミナルカバーで密閉容器に押付けられることを特徴とする。 A compressor according to the present invention includes a sealed container that houses therein a compression element and an electric element that drives the compression element, and an airtight terminal that is provided in the sealed container and serves as a relay point for supplying power to the electric element. A metal terminal plate provided in the vicinity of the hermetic terminal and having a first standing part and a second standing part standing in a substantially vertical direction with respect to the sealed container, and a resin terminal covering the hermetic terminal A cover, an elastic member that engages with the first standing portion and the second standing portion of the terminal plate to fix the terminal cover to the sealed container, a compressor temperature sensor that detects the temperature of the sealed container, and a compression A metal thermo holder having a sensor holding portion for holding the machine temperature sensor so as to be in close contact with the sealed container, and an engagement portion engaging with the second standing portion of the terminal plate, Tar If the Narukaba is fixed to the closed container elastic member, characterized in that it is pressed against the closed container in the terminal cover.

この発明に係る圧縮機は、上記構成により、サーモホルダーが金属製であるため、経年変化による劣化や割れの耐性が高く、長期間安定して温度センサーを保持し、被測定部位に確実に接触させることが可能となるため、被測定部位の温度をより正確に、確実に測定することが可能である。また、ターミナルカバーをねじを使用せずにばね性を有する弾性部材で固定するため、常に一定の押付け力でサーモホルダー及び圧縮機温度センサーが接触するので、測定感度を一定に保つことができ、組立性の向上が得られる。 In the compressor according to the present invention, since the thermo holder is made of metal due to the above configuration, it is highly resistant to deterioration and cracking due to secular change, stably holds the temperature sensor for a long period of time, and reliably contacts the measurement site. Therefore, the temperature of the measurement site can be measured more accurately and reliably. In addition, since the terminal cover is fixed with an elastic member having a spring property without using a screw, the thermoholder and the compressor temperature sensor always contact with a constant pressing force, so that the measurement sensitivity can be kept constant, Assemblability can be improved.

実施の形態１．
図１乃至図６は実施の形態１を示す図で、図１は圧縮機１の斜視図、図２は圧縮機１上部のターミナルカバー２及びサーモホルダー３付近の分解斜視図、図３は同分解正面図、図４は圧縮機１の平面図、図５は図４のＡ−Ａ断面図、図６はターミナルカバー２及びサーモホルダー３を２個使用する圧縮機１の平面図である。 Embodiment 1 FIG.
1 to 6 show the first embodiment. FIG. 1 is a perspective view of the compressor 1, FIG. 2 is an exploded perspective view of the vicinity of the terminal cover 2 and the thermo holder 3 on the compressor 1, and FIG. 4 is an exploded front view, FIG. 4 is a plan view of the compressor 1, FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4, and FIG.

図１により、圧縮機１の全体構成を説明する。尚、本実施の形態は、ターミナルカバー２及びサーモホルダー３に特徴がある。従って、その他の部分については、公知のものでもあり、簡単にもしくは説明を省略する。 The overall configuration of the compressor 1 will be described with reference to FIG. The present embodiment is characterized by the terminal cover 2 and the thermo holder 3. Therefore, other parts are well known and will not be described briefly.

図１に示す圧縮機１は、例えば回転式圧縮機である。但し、回転式圧縮機に限定されるものではなく、その他の、レシプロ、スクロール等にも適用可能である。 A compressor 1 shown in FIG. 1 is, for example, a rotary compressor. However, the present invention is not limited to the rotary compressor, and can be applied to other reciprocating, scrolling and the like.

圧縮機１は、シェル１ａ（密閉容器）内に図示しない圧縮要素、この圧縮要素を駆動する電動要素を収納している。圧縮機１は、冷凍サイクルの低圧側の低温の蒸気冷媒を吸入マフラー２１から吸入して圧縮し、高圧・高温の蒸気冷媒を吐出管２０から吐出する。 The compressor 1 houses a compression element (not shown) and an electric element that drives the compression element in a shell 1a (sealed container). The compressor 1 sucks and compresses low-temperature vapor refrigerant on the low-pressure side of the refrigeration cycle from the suction muffler 21, and discharges high-pressure and high-temperature vapor refrigerant from the discharge pipe 20.

電動要素は、外部から電力が供給されて駆動される。シェル１ａには、電力供給の中継点となるガラス端子７（図２、３参照）が設けられる。ガラス端子７は、通常３本の端子を有し、この端子はガラス端子７の本体とガラスで絶縁されている。ガラス端子７は気密端子とも呼ぶ。 The electric element is driven by power supplied from the outside. The shell 1a is provided with a glass terminal 7 (see FIGS. 2 and 3) that serves as a relay point for power supply. The glass terminal 7 usually has three terminals, and these terminals are insulated from the main body of the glass terminal 7 by glass. The glass terminal 7 is also called an airtight terminal.

ガラス端子７は、溶接によりシェル１ａの上面に固定される。ガラス端子７を囲むように金属製のターミナルプレート５がシェル１ａの上面に溶接により固定される。ターミナルプレート５には、ガラス端子７のカバーとなる樹脂製のターミナルカバー２と、圧縮機温度センサー４をシェル１ａに密着するように保持するサーモホルダー３とが取り付けられる。 The glass terminal 7 is fixed to the upper surface of the shell 1a by welding. A metal terminal plate 5 is fixed to the upper surface of the shell 1a by welding so as to surround the glass terminal 7. The terminal plate 5 is provided with a resin-made terminal cover 2 that serves as a cover for the glass terminal 7 and a thermo holder 3 that holds the compressor temperature sensor 4 in close contact with the shell 1a.

ターミナルカバー２は、ばね機能を有するクリップ６（弾性部材の一例）によりターミナルプレート５に固定される。詳細は追って説明する。 The terminal cover 2 is fixed to the terminal plate 5 by a clip 6 (an example of an elastic member) having a spring function. Details will be described later.

サーモホルダー３は、ターミナルプレート５に固定される。さらに、ターミナルカバー２の突起２ａで押圧される。詳細は追って説明する。 The thermo holder 3 is fixed to the terminal plate 5. Further, it is pressed by the protrusion 2 a of the terminal cover 2. Details will be described later.

図２でターミナルカバー２及びサーモホルダー３付近の構成をさらに説明する。ターミナルプレート５は、側面視略Ｕ字状で、第１の立設部５ａと、第２の立設部５ｂとを備える。第１の立設部５ａ及び第２の立設部５ｂには、ターミナルカバー２を固定するクリップ６が係合する開口部５ｃ（図５も参照）が開けられている。 The configuration in the vicinity of the terminal cover 2 and the thermo holder 3 will be further described with reference to FIG. The terminal plate 5 is substantially U-shaped in a side view, and includes a first standing part 5a and a second standing part 5b. An opening 5c (see also FIG. 5) with which the clip 6 for fixing the terminal cover 2 is engaged is opened in the first standing portion 5a and the second standing portion 5b.

ターミナルカバー２とターミナルプレート５との間に、ゴム等のパッキン１４が介在する。パッキン１４は、例えば、開口部１４ａが第１の立設部５ａに嵌め込まれて位置決めがなされる。パッキン１４は、熱絶縁の機能を有する。シェル１ａが高温になった場合でも、パッキン１４が熱絶縁となりターミナルカバー２の温度上昇は抑えられる。従って、ターミナルカバー２の熱による劣化を抑制できる。 Between the terminal cover 2 and the terminal plate 5, a packing 14 such as rubber is interposed. For example, the packing 14 is positioned by fitting the opening 14a into the first standing portion 5a. The packing 14 has a function of thermal insulation. Even when the shell 1a becomes high temperature, the packing 14 is thermally insulated, and the temperature rise of the terminal cover 2 can be suppressed. Therefore, deterioration of the terminal cover 2 due to heat can be suppressed.

ターミナルカバー２は、外周に外側に突出する２個の突起２ａを備える。２個の突起２ａ間の寸法は、略第２の立設部５ｂの幅に等しい。２個の突起２ａが第２の立設部５ｂを挟み込むので、ターミナルカバー２の取付方向の間違いやズレを防ぐことができる。ターミナルカバー２の取り付け性が向上する。 The terminal cover 2 includes two protrusions 2a that protrude outward on the outer periphery. The dimension between the two protrusions 2a is substantially equal to the width of the second standing portion 5b. Since the two protrusions 2a sandwich the second upright portion 5b, it is possible to prevent an error in the mounting direction of the terminal cover 2 and displacement. The mountability of the terminal cover 2 is improved.

ターミナルカバー２は、上面にクリップ６が間に嵌り込む２個のリブ２ｂを備える。２個のリブ２ｂにより、ターミナルカバー２に対しクリップ６の位置が決る。また、クリップ６のズレを防止できる。 The terminal cover 2 includes two ribs 2b on the upper surface of which the clip 6 fits. The position of the clip 6 with respect to the terminal cover 2 is determined by the two ribs 2b. In addition, displacement of the clip 6 can be prevented.

金属製のサーモホルダー３は、その開口部３ｃ（係合部の一例）が第２の立設部５ｂに挿入されて仮固定される。サーモホルダー３は、略円柱状の圧縮機温度センサー４（図４、５参照）をシェル１ａとの間に押さえこむセンサー押さえ部３ａ（センサー保持部の一例）を備える。また、圧縮機温度センサー４の長手方向のズレ、もしくはセンサー押さえ部３ａからの脱落を防止する脱落防止部３ｂを両端に備える。サーモホルダー３は、ターミナルカバー２がターミナルプレート５に取り付けらえた状態では、ターミナルカバー２の突起２ａでシェル１ａ側に押付けられる。それにより、圧縮機温度センサー４をシェル１ａに確実に接触させることができる。従って、圧縮機温度センサー４は正確にシェル１ａの温度を検知することができる。 The metal thermo holder 3 is temporarily fixed by inserting an opening 3c (an example of an engaging portion) into the second standing portion 5b. The thermo holder 3 includes a sensor pressing portion 3a (an example of a sensor holding portion) that presses a substantially cylindrical compressor temperature sensor 4 (see FIGS. 4 and 5) between the thermo holder 3 and the shell 1a. Further, the compressor temperature sensor 4 is provided with a slip-off preventing portion 3b at both ends for preventing the displacement in the longitudinal direction of the compressor temperature sensor 4 or dropping from the sensor pressing portion 3a. When the terminal cover 2 is attached to the terminal plate 5, the thermo holder 3 is pressed to the shell 1 a side by the protrusion 2 a of the terminal cover 2. Thereby, the compressor temperature sensor 4 can be reliably brought into contact with the shell 1a. Therefore, the compressor temperature sensor 4 can accurately detect the temperature of the shell 1a.

クリップ６は、略コ字状で両端にターミナルプレート５の第１の立設部５ａ及び第２の立設部５ｂの開口部５ｃに係合する折り曲げ部６ａを備える。 The clip 6 is substantially U-shaped and includes a bent portion 6a that engages with the first standing portion 5a and the opening portion 5c of the second standing portion 5b of the terminal plate 5 at both ends.

図３により、ターミナルカバー２とサーモホルダー３の組立手順を説明する。ターミナルプレート５とガラス端子７は、シェル１ａに溶接されている。
（１）先ず、パッキン１４を、その開口部１４ａをターミナルプレート５の第１の立設部５ａに挿入してセットする。
（２）次にサーモホルダー３を、その開口部３ｃをターミナルプレート５の第２の立設部５ｂに挿入（圧入）して仮固定する。
（３）ターミナルカバー２を、２個の突起２ａの間にターミナルプレート５の第２の立設部５ｂが嵌るようにセットする。
（４）クリップ６をターミナルカバー２の２個のリブ２ｂの間に置き、クリップ６の両端の折り曲げ部６ａをターミナルプレート５の第１の立設部５ａ及び第２の立設部５ｂの開口部５ｃに係合させる。 The assembly procedure of the terminal cover 2 and the thermo holder 3 will be described with reference to FIG. The terminal plate 5 and the glass terminal 7 are welded to the shell 1a.
(1) First, the packing 14 is set by inserting the opening 14 a into the first standing portion 5 a of the terminal plate 5.
(2) Next, the thermo holder 3 is temporarily fixed by inserting (press-fitting) the opening 3 c into the second standing portion 5 b of the terminal plate 5.
(3) The terminal cover 2 is set so that the second standing portion 5b of the terminal plate 5 fits between the two protrusions 2a.
(4) The clip 6 is placed between the two ribs 2 b of the terminal cover 2, and the bent portions 6 a at both ends of the clip 6 are opened to the first standing portion 5 a and the second standing portion 5 b of the terminal plate 5. Engage with the part 5c.

図３では図示していないが、圧縮機温度センサー４は、後からシェル１ａの上面とサーモホルダー３のセンサー押さえ部３ａとの間に挿入される。 Although not shown in FIG. 3, the compressor temperature sensor 4 is inserted between the upper surface of the shell 1 a and the sensor pressing portion 3 a of the thermo holder 3 later.

図４は、圧縮機温度センサー４もサーモホルダー３に固定した組立完了後のターミナルカバー２及びサーモホルダー３付近を示す平面図である。図４に示すように、圧縮機温度センサー４は、サーモホルダー３のセンサー押さえ部３ａとシェル１ａとの間に挿入される。そして、ターミナルカバー２の突起２ａがサーモホルダー３を押圧することで、圧縮機温度センサー４はシェル１ａに密着する。また、サーモホルダー３の両端にある脱落防止部３ｂでセンサー押さえ部３ａからの脱落が防止できる。 FIG. 4 is a plan view showing the vicinity of the terminal cover 2 and the thermo holder 3 after completion of assembly in which the compressor temperature sensor 4 is also fixed to the thermo holder 3. As shown in FIG. 4, the compressor temperature sensor 4 is inserted between the sensor pressing portion 3a of the thermo holder 3 and the shell 1a. And the protrusion 2a of the terminal cover 2 presses the thermo holder 3, and the compressor temperature sensor 4 adheres to the shell 1a. In addition, the drop-off prevention portions 3b at both ends of the thermo holder 3 can prevent the sensor holder 3a from falling off.

図５は図４のＡ−Ａ断面図である。図５を参照しながら本実施の形態の効果を総括する。
（１）圧縮機温度センサー４は、金属性のサーモホルダー３のセンサー押さえ部３ａとシェル１ａとの間に保持される。さらに、サーモホルダー３をターミナルカバー２の２個の突起２ａが押し付ける。そのため、圧縮機温度センサー４をシェル１ａに確実に接触させることが可能となるため、シェル１ａの温度をより正確に、確実に測定することが可能となる。
（２）ターミナルカバー２を、ばね機能を持ったクリップ６で押し付けるため、常に一定の押し付け力で被測定部（シェル１ａ）に圧縮機温度センサー４が接触するので、測定感度を一定に保つことができる。
（３）ターミナルカバー２とターミナルプレート５の間にパッキン１４が介在する。また、ターミナルカバー２は、サーモホルダー３に突起２ａの先端（サーモホルダー３を押さえる部分）が接触するだけで、接触面積は小さい。従って、シェル１ａが高温になる場合でも、シェル１ａからターミナルカバー２への熱伝達は少なく、ターミナルカバー２の熱劣化を抑制できる。
（４）ターミナルカバー２の突起２ａにターミナルプレート５の第２の立設部５ｂを挟みこませるため、取付け方向の間違いやズレを防ぐことが可能となり、ターミナルカバー２の取付け性が向上する。
（５）ターミナルカバー２の固定にねじを用いないため、工具が不要になり組立性が向上すると共にコスト低減が図れる。
（６）サーモホルダー３は金属性であるため、経年変化による劣化や割れの耐性が高く、長期間安定して圧縮機温度センサー４を保持することが可能となる。
（７）ターミナルプレート５の第２の立設部５ｂにサーモホルダー３の開口部３ｃを挿入して、サーモホルダー３を仮固定するため、サーモホルダー３のズレや脱落といった懸念が無くなる。尚、サーモホルダー３はターミナルプレート５の第２の立設部５ｂに挿入することで固定できるため、圧入のような大きな荷重を必要としない。手もしくは機械によって容易に仮固定できる。そのため、特殊な治具なども不要で組立性の向上が期待でき、治具製作費などを削減できるためコスト低減も期待できる。
（８）サーモホルダー３の両端に、脱落防止部３ｂが設けられているので、圧縮機温度センサー４が仮に長手方向にずれた場合でも、圧縮機温度センサー４が脱落防止部３ｂに当接する。そのため圧縮機温度センサー４の脱落を防止でき、圧縮機温度測定の確実性を増すことが可能となる。
（９）サーモホルダー３の脱落防止部３ｂを、シェル１ａ側に曲げておくことにより、圧縮機温度センサー４に接続するリード線（図示せず）の断線を防ぐことができる。 FIG. 5 is a cross-sectional view taken along the line AA in FIG. The effects of the present embodiment will be summarized with reference to FIG.
(1) The compressor temperature sensor 4 is held between the sensor pressing portion 3a of the metallic thermo holder 3 and the shell 1a. Further, the thermo holder 3 is pressed by the two protrusions 2 a of the terminal cover 2. Therefore, since the compressor temperature sensor 4 can be reliably brought into contact with the shell 1a, the temperature of the shell 1a can be measured more accurately and reliably.
(2) Since the compressor temperature sensor 4 always contacts the part to be measured (shell 1a) with a constant pressing force because the terminal cover 2 is pressed with the clip 6 having a spring function, the measurement sensitivity is kept constant. Can do.
(3) The packing 14 is interposed between the terminal cover 2 and the terminal plate 5. Further, the terminal cover 2 has only a small contact area because the tip of the protrusion 2a (the portion that holds the thermo holder 3) contacts the thermo holder 3. Therefore, even when the shell 1a becomes high temperature, heat transfer from the shell 1a to the terminal cover 2 is small, and thermal deterioration of the terminal cover 2 can be suppressed.
(4) Since the second upright portion 5b of the terminal plate 5 is sandwiched between the protrusions 2a of the terminal cover 2, it is possible to prevent an error in the mounting direction and misalignment, and the mounting performance of the terminal cover 2 is improved.
(5) Since no screws are used to fix the terminal cover 2, a tool is not required, and assemblability is improved and costs can be reduced.
(6) Since the thermo holder 3 is metallic, it is highly resistant to deterioration and cracking due to secular change, and the compressor temperature sensor 4 can be held stably for a long period of time.
(7) Since the opening 3c of the thermo holder 3 is inserted into the second standing portion 5b of the terminal plate 5 and the thermo holder 3 is temporarily fixed, there is no concern that the thermo holder 3 is displaced or dropped. Since the thermo holder 3 can be fixed by being inserted into the second standing portion 5b of the terminal plate 5, a large load such as press fitting is not required. Can be temporarily fixed by hand or machine. For this reason, special jigs are not required and assembly can be improved, and jig manufacturing costs can be reduced.
(8) Since the drop-off prevention portions 3b are provided at both ends of the thermo holder 3, even when the compressor temperature sensor 4 is displaced in the longitudinal direction, the compressor temperature sensor 4 contacts the drop-off prevention portion 3b. Therefore, the compressor temperature sensor 4 can be prevented from falling off, and the reliability of the compressor temperature measurement can be increased.
(9) The lead wire (not shown) connected to the compressor temperature sensor 4 can be prevented from being disconnected by bending the drop-off prevention portion 3b of the thermo holder 3 toward the shell 1a.

なお、本実施の形態において、ターミナルカバー２を、クリップ６により第１の立設部５ａ及び第２の立設部５ｂの開口部５ｃに係止して固定する方法を説明したが、これは一例であり、クリップ６とは別のばね形状のもので固定してもよい。 In the present embodiment, the method of locking the terminal cover 2 to the opening 5c of the first standing portion 5a and the second standing portion 5b by the clip 6 has been described. For example, the clip 6 may be fixed with a spring shape different from that of the clip 6.

さらに、電動要素の仕様により、ガラス端子７が複数必要な場合がある。図６はガラス端子７を２個使用する場合の、シェル１ａの上面における２組のターミナルカバー２及びサーモホルダー３等の配置の一例を示す。ガラス端子７を２個使用する場合でも、本実施の形態のターミナルカバー２は設置面積が小さいため、ターミナルカバー２を増やすことで対応することが可能となる。 Further, there may be a case where a plurality of glass terminals 7 are required depending on the specification of the electric element. FIG. 6 shows an example of the arrangement of two sets of the terminal cover 2 and the thermo holder 3 on the upper surface of the shell 1a when two glass terminals 7 are used. Even when two glass terminals 7 are used, since the installation area of the terminal cover 2 of the present embodiment is small, it is possible to cope by increasing the terminal cover 2.

実施の形態２．
この実施の形態２では、上記実施の形態１で示したサーモホルダー３の別形状について説明する。図７、図８は実施の形態２を示す図で、図７は圧縮機１上部のサーモホルダー１３付近の分解斜視図、図８は同分解正面図である。 Embodiment 2. FIG.
In the second embodiment, another shape of the thermo holder 3 shown in the first embodiment will be described. 7 and 8 are views showing the second embodiment. FIG. 7 is an exploded perspective view of the vicinity of the thermo holder 13 in the upper portion of the compressor 1, and FIG. 8 is an exploded front view thereof.

ターミナルカバー２は、実施の形態１と同様であるので省略する。図７、図８に示すように、サーモホルダー１３は全体形状が側面視（図８）略Ｌ字状である。垂直部１３ｃは二重に折り曲げられ、ターミナルプレート５の第２の立設部５ｂを挟み込んで仮固定される挟み込み部１３ｂ（係合部の一例）を形成している。水平部は実施の形態１のサーモホルダー３のそれと同様である。即ち、圧縮機温度センサー４をシェル１ａとの間で保持するセンサー押さえ部１３ｄ、圧縮機温度センサー４の脱落を防ぐ脱落防止部１３ｅを備える。 Since the terminal cover 2 is the same as that of the first embodiment, the description thereof is omitted. As shown in FIGS. 7 and 8, the overall shape of the thermo holder 13 is substantially L-shaped when viewed from the side (FIG. 8). The vertical portion 13c is double-folded to form a sandwiching portion 13b (an example of an engaging portion) that is temporarily fixed by sandwiching the second standing portion 5b of the terminal plate 5. The horizontal portion is the same as that of the thermo holder 3 of the first embodiment. That is, a sensor pressing portion 13d that holds the compressor temperature sensor 4 with the shell 1a and a dropout prevention portion 13e that prevents the compressor temperature sensor 4 from dropping off are provided.

サーモホルダー１３は、サーモホルダー１３自体がターミナルプレート５の第２の立設部５ｂを挟み込むことでターミナルプレート５に固定される。サーモホルダー１３のような形状でもサーモホルダー３と同様、圧入のような大きな荷重を必要とせず、手もしくは機械によって容易に仮固定できるため、特殊な治具なども不要で組立性の向上が期待でき、治具製作費などを削減できる。そのためコスト低減も期待できる。 The thermo holder 13 is fixed to the terminal plate 5 by sandwiching the second standing portion 5b of the terminal plate 5 by the thermo holder 13 itself. As with the thermo-holder 3, the shape of the thermo-holder 13 does not require a large load such as press-fitting and can be easily temporarily fixed by hand or machine. This can reduce jig manufacturing costs. Therefore, cost reduction can be expected.

サーモホルダー１３の垂直部１３ｃには、開口部１３ａが開けられている。サーモホルダー１３がターミナルプレート５の第２の立設部５ｂに取り付けらえた状態では、垂直部１３ｃの開口部１３ａは、ターミナルプレート５の第２の立設部５ｂの開口部５ｃと同じ位置になる。垂直部１３ｃの開口部１３ａとターミナルプレート５の第２の立設部５ｂの開口部５ｃとの両方にばね機能を有するクリップ６を引っ掛けるため、サーモホルダー１３のズレやねじれを防止できる。 An opening 13 a is opened in the vertical portion 13 c of the thermo holder 13. In a state where the thermo holder 13 is attached to the second standing portion 5b of the terminal plate 5, the opening portion 13a of the vertical portion 13c is at the same position as the opening portion 5c of the second standing portion 5b of the terminal plate 5. Become. Since the clip 6 having a spring function is hooked on both the opening 13a of the vertical portion 13c and the opening 5c of the second standing portion 5b of the terminal plate 5, the thermo holder 13 can be prevented from being displaced or twisted.

また、サーモホルダー１３の挟み込み部１３ｂの隙間を、ターミナルプレート５の第２の立設部５ｂの厚さより小さくすることで、ターミナルプレート５の第２の立設部５ｂを挟み込むばね力が増大する。 Further, by making the gap of the sandwiching portion 13b of the thermo holder 13 smaller than the thickness of the second standing portion 5b of the terminal plate 5, the spring force for sandwiching the second standing portion 5b of the terminal plate 5 increases. .

さらに、サーモホルダー１３の略Ｌ字の垂直部１３Ｃと水平部とのなす角度を９０度より大きくすることで、圧縮機温度センサー４を押し付ける力が増大し、より安定した圧縮機温度センサー保持力がえられる。 Furthermore, by making the angle formed between the substantially L-shaped vertical portion 13C and the horizontal portion of the thermo holder 13 greater than 90 degrees, the force for pressing the compressor temperature sensor 4 is increased, and the compressor temperature sensor holding force is more stable. Can be obtained.

実施の形態１を示す図で、圧縮機１の斜視図。FIG. 3 is a diagram showing the first embodiment, and is a perspective view of the compressor 1. 実施の形態１を示す図で、圧縮機１上部のターミナルカバー２及びサーモホルダー３付近の分解斜視図。FIG. 3 is a diagram illustrating the first embodiment, and is an exploded perspective view of the vicinity of a terminal cover 2 and a thermo holder 3 at the top of the compressor 1; 実施の形態１を示す図で、同分解正面図。FIG. 5 shows the first embodiment, and is an exploded front view thereof. 実施の形態１を示す図で、圧縮機１の平面図。FIG. 3 shows the first embodiment, and is a plan view of the compressor 1. 実施の形態１を示す図で、図４のＡ−Ａ断面図。FIG. 5 shows the first embodiment and is a cross-sectional view taken along the line AA in FIG. 4. 実施の形態１を示す図で、ターミナルカバー２及びサーモホルダー３を２個使用する圧縮機１の平面図。FIG. 3 is a diagram showing the first embodiment, and is a plan view of the compressor 1 using two terminal covers 2 and two thermo holders 3. 実施の形態２を示す図で、圧縮機１上部のサーモホルダー１３付近の分解斜視図。FIG. 6 shows the second embodiment, and is an exploded perspective view of the vicinity of a thermo holder 13 at the top of the compressor 1. 実施の形態２を示す図で、同分解正面図。It is a figure which shows Embodiment 2, and the same exploded front view.

Explanation of symbols

１圧縮機、１ａシェル、２ターミナルカバー、２ａ突起、２ｂリブ、３サーモホルダー、３ａセンサー押さえ部、３ｂ脱落防止部、３ｃ開口部、４圧縮機温度センサー、５ターミナルプレート、５ａ第１の立設部、５ｂ第２の立設部、５ｃ開口部、６クリップ、６ａ折り曲げ部、７ガラス端子、１３サーモホルダー、１３ａ開口部、１３ｂ挟み込み部、１３ｃ垂直部、１３ｄセンサー押さえ部、１３ｅ脱落防止部、１４パッキン、１４ａ開口部、２０吐出管、２１吸入マフラー。 DESCRIPTION OF SYMBOLS 1 Compressor, 1a shell, 2 Terminal cover, 2a Protrusion, 2b Rib, 3 Thermo holder, 3a Sensor pressing part, 3b Fall-off prevention part, 3c Opening part, 4 Compressor temperature sensor, 5 Terminal plate, 5a First stand Installation part, 5b 2nd standing part, 5c opening part, 6 clip, 6a bending part, 7 glass terminal, 13 thermo holder, 13a opening part, 13b sandwiching part, 13c vertical part, 13d sensor pressing part, 13e fall prevention Part, 14 packing, 14a opening part, 20 discharge pipe, 21 suction muffler.

Claims

A sealed container that houses a compression element and an electric element that drives the compression element;
An airtight terminal provided in the sealed container and serving as a relay point for supplying power to the electric element;
A metal terminal plate provided in the vicinity of the hermetic terminal and having a first standing part and a second standing part standing in a substantially vertical direction with respect to the sealed container;
A resin terminal cover covering the airtight terminal;
An elastic member that engages with the first standing portion and the second standing portion of the terminal plate to fix the terminal cover to the sealed container;
A compressor temperature sensor for detecting the temperature of the sealed container;
A metal thermo holder having a sensor holding portion for holding the compressor temperature sensor so as to be in close contact with the sealed container, and an engagement portion engaging with the second standing portion of the terminal plate. ,
The compressor, wherein the thermo holder is pressed against the sealed container by the terminal cover when the terminal cover is fixed to the sealed container by the elastic member.

The compressor according to claim 1, wherein the engaging portion of the thermo holder is configured by an opening inserted into the second standing portion.

2. The compressor according to claim 1, wherein the engaging portion of the thermo holder is configured by a sandwiching portion that sandwiches the second standing portion.

The compression according to any one of claims 1 to 3, wherein an opening is formed in the first standing part and the second standing part, and the elastic member is engaged with the opening. Machine.

The compressor according to any one of claims 1 to 4, wherein the airtight terminal and the terminal plate are mounted on an upper surface of the sealed container.

The terminal cover includes two protrusions protruding outward on an outer periphery of the terminal cover, and a dimension between the two protrusions is substantially equal to a width of the second standing portion, and the two protrusions 6. The compressor according to claim 1, wherein the second standing part is sandwiched between the compressor and the compressor.

The compressor according to any one of claims 1 to 6, wherein the thermo holder includes a drop-off prevention unit that prevents the compressor temperature sensor from dropping off.

The compressor according to claim 7 , wherein a breakage of a lead wire connected to the compressor temperature sensor is prevented by bending the drop-off prevention portion of the thermo holder toward the sealed container.

An opening is formed in the first standing part and the second standing part, the elastic member is engaged with the opening, and the sandwiching part of the thermo holder is provided with the second standing part. The compressor according to claim 3, wherein an opening with which the elastic member is engaged is formed together with the opening.

The compressor according to claim 1, wherein the terminal cover includes two ribs into which the elastic member is fitted.