JP2001263238A - Hermetically sealed motor-driven compressor - Google Patents
Hermetically sealed motor-driven compressorInfo
- Publication number
- JP2001263238A JP2001263238A JP2000077672A JP2000077672A JP2001263238A JP 2001263238 A JP2001263238 A JP 2001263238A JP 2000077672 A JP2000077672 A JP 2000077672A JP 2000077672 A JP2000077672 A JP 2000077672A JP 2001263238 A JP2001263238 A JP 2001263238A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- electric compressor
- winding
- connection portion
- conductive material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 239000000155 melt Substances 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 46
- 230000006698 induction Effects 0.000 claims description 13
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000009993 protective function Effects 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PYVHTIWHNXTVPF-UHFFFAOYSA-N F.F.F.F.C=C Chemical compound F.F.F.F.C=C PYVHTIWHNXTVPF-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、密閉型電動圧縮機
に関し、特に密閉型電動圧縮機に使用される電動機の保
護に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic electric compressor and, more particularly, to protection of an electric motor used in an hermetic electric compressor.
【０００２】[0002]
【従来の技術】密閉型電動圧縮機には、特開平１０−２
７４１６８号公報に記載されているように通常オーバー
ロードリレー等いくつかの保護装置を有するものである
が、電動機焼損等の異常事態に対しては十分保護性能を
発揮できない場合があり、従来より漏電遮断器や漏電リ
レー等の多重の保護装置を設けている。2. Description of the Related Art A hermetic electric compressor is disclosed in
As described in Japanese Patent No. 74168, the device usually has some protection devices such as an overload relay. However, it may not be able to sufficiently provide protection performance against abnormal situations such as motor burnout. Multiple protection devices such as circuit breakers and earth leakage relays are provided.
【０００３】[0003]
【発明が解決しようとする課題】しかし、前述の方法に
よっても、アース処理の不完全やリレーの接点が溶着し
た場合等、保護が十分に機能しないことがあり、巻線や
リード線が過電流により温度上昇し、その被覆絶縁物が
溶けることで漏電、焼損に至る可能性がある。However, even with the above-described method, the protection may not function sufficiently due to incomplete grounding or welding of the relay contacts, etc. As a result, the temperature rises, and the covering insulator is melted, which may lead to electric leakage and burning.
【０００４】また、電動機焼損により発生したカーボン
が電源供給端子絶縁部に付着し、トラッキングの熱によ
り電源供給端子の破損（いわゆるピン飛び）に至るおそ
れがあるなどの問題点があった。There is another problem that carbon generated by motor burnout adheres to the insulating portion of the power supply terminal, and the heat of tracking may cause damage to the power supply terminal (so-called pin jump).
【０００５】本発明は、電動機の保護性能を向上させ、
安全性の高い密閉型電動圧縮機を提供するものである。The present invention improves the protection performance of a motor,
It is intended to provide a hermetically sealed electric compressor with high safety.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するた
め、請求項１にかかる発明は、密閉容器内に圧縮機構
と、この圧縮機構を駆動する電動機とを収容し、前記電
動機には、この電動機の巻線と電源供給端子間とを接続
するリード線を備えた密閉型電動圧縮機において、前記
リード線の途中を分離するように間隙を設け、この間隙
を所定温度で溶融する導電材料で充填して接続部を形成
し、この接続部を前記巻線のコイルエンドの中に埋め込
むか、または、コイルエンド表面に装着したことによ
り、巻線への通電を遮断するものである。According to a first aspect of the present invention, a compression mechanism and a motor for driving the compression mechanism are housed in a closed container. In a hermetic electric compressor having a lead wire connecting a winding of a motor and a power supply terminal, a gap is provided so as to separate the middle of the lead wire, and the gap is made of a conductive material that melts at a predetermined temperature. The connection is formed by filling, and the connection is buried in the coil end of the winding or mounted on the surface of the coil end, thereby cutting off the current supply to the winding.
【０００７】請求項２にかかる発明は、電動機が単相誘
導電動機であって、接続部を巻線の共通引き出しリード
線に設けたことにより、主巻線と補助巻線への通電を遮
断するものである。According to a second aspect of the present invention, the motor is a single-phase induction motor, and the connection portion is provided on a common lead wire of the winding, so that the power supply to the main winding and the auxiliary winding is cut off. Things.
【０００８】請求項３にかかる発明は、電動機が単相誘
導電動機であって、接続部をコイルエンドの主巻線の束
と補助巻線の束の間に挿入したことにより、１つの接続
部で主巻線と補助巻線の温度を感知するものである。According to a third aspect of the present invention, the motor is a single-phase induction motor, and the connecting portion is inserted between the bundle of the main windings and the bundle of the auxiliary windings at the coil end. It senses the temperature of the winding and the auxiliary winding.
【０００９】請求項４にかかる発明は、電動機が三相誘
導電動機であって、接続部を２つ以上のリード線に設け
たことにより三相の巻線への通電を遮断するものであ
る。According to a fourth aspect of the present invention, the motor is a three-phase induction motor, and the connection to the two or more lead wires cuts off the current to the three-phase winding.
【００１０】請求項５にかかる発明は、耐熱フィルム等
の絶縁材料からなるチューブのほぼ中央部に配置された
導電材料と、チューブの両開口側から挿入され、前記導
電材料内に埋設された相対向するリード線の芯線とで前
記接続部を構成したことにより、容易に保護機能を向上
させるものである。According to a fifth aspect of the present invention, a conductive material disposed substantially in the center of a tube made of an insulating material such as a heat-resistant film, and a conductive material inserted from both opening sides of the tube and embedded in the conductive material. The protection function is easily improved by forming the connection portion with the core wire of the lead wire facing the connection portion.
【００１１】[0011]
【発明の実施の形態】以下本発明の実施の形態を図面に
基ずき説明する。図３は、本発明の実施例である密閉型
電動圧縮機の断面を示しており、密閉容器１内に圧縮要
素２とこれを駆動する電動機２０から構成される。電動
機２０は、巻線３を有する固定子４と回転子５より構成
され、巻線３は、リード線６により電源供給端子７に接
続されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows a cross section of a hermetic electric compressor according to an embodiment of the present invention, which includes a compression element 2 in a hermetic container 1 and an electric motor 20 for driving the same. The motor 20 includes a stator 4 having a winding 3 and a rotor 5, and the winding 3 is connected to a power supply terminal 7 by a lead wire 6.
【００１２】このリード線６の途中には、図１に示すよ
うに導電体の芯線８を分離した間隙が構成されており、
この間隙を所定温度で溶融するはんだ（導電材料、すず
約６３％、鉛約３７％、融点約１８３℃）９で接続し、
絶縁材（四ふっ化エチレン樹脂、融点約３２７℃）１３
で保護した接続部１０を設けている。In the middle of the lead wire 6, there is formed a gap separating the conductor core 8 as shown in FIG.
This gap is connected with a solder 9 (conductive material, about 63% tin, about 37% lead, melting point about 183 ° C.) 9 which is melted at a predetermined temperature,
Insulation material (ethylene tetrafluoride resin, melting point about 327 ° C) 13
There is provided a connection section 10 protected by.
【００１３】図２は単相誘導電動機の固定子４の下面を
示しており、前述の接続部１０を主巻線のコイルエンド
１１と補助巻線のコイルエンド１２間に跨った表面に装
着している。FIG. 2 shows the lower surface of the stator 4 of the single-phase induction motor. The connecting portion 10 is mounted on a surface extending between the coil end 11 of the main winding and the coil end 12 of the auxiliary winding. ing.
【００１４】これにより、何らかの要因で電動機２０の
巻線３に過電流が流れ、コイルエンド１１及び１２の温
度が上昇しても、装着している接続部１０が所定の温度
以上になるとはんだ９が溶融し、毛細管現象で芯線８に
吸収され無くなることで、図４に示すようにリード線６
の芯線８を分断した間隙ができ、通電が遮断され電動機
焼損に至るのを防止することができる。As a result, even if an overcurrent flows through the winding 3 of the motor 20 for some reason and the temperature of the coil ends 11 and 12 rises, when the temperature of the mounted connection portion 10 exceeds a predetermined temperature, the solder 9 Is melted and is no longer absorbed by the core wire 8 due to the capillary phenomenon, so that the lead wire 6 as shown in FIG.
A gap is formed by separating the core wire 8 of the motor, thereby preventing the power supply from being interrupted and the motor from burning.
【００１５】また、主巻線と補助巻線とこれらの共通引
き出しリード線の３本を有する単相誘導電動機において
は、共通引き出しリード線にのみ接続部１０を設けるこ
とで、主巻線と補助巻線への通電が同時に遮断され電動
機焼損に至るのを防止することができる。In a single-phase induction motor having three main windings, auxiliary windings, and common lead wires, the connection portion 10 is provided only on the common lead wires, so that the main winding and the auxiliary windings are provided. It is possible to prevent the energization of the windings from being cut off at the same time, resulting in motor burnout.
【００１６】また、単相誘導電動機における接続部１０
を設置する位置として、主巻線の束と補助巻線の束の間
に接続部１０を挿入することにより、主巻線と補助巻線
の温度を１つの接続部で確実に早く感知でき、異常な温
度上昇で通電が遮断され電動機焼損に至るのを防止する
ことが可能となる。The connecting portion 10 of the single-phase induction motor
By inserting the connecting portion 10 between the bundle of the main winding and the bundle of the auxiliary windings as a position for installing the main winding and the auxiliary winding, the temperature of the main winding and the auxiliary winding can be sensed quickly and reliably at one connecting portion. It is possible to prevent the electric current from being cut off due to the rise in temperature, and to prevent the motor from burning.
【００１７】さらに、密閉型電動圧縮機に使用する電動
機が三相誘導電動機である場合、三相巻線の３本のリー
ド線の内、２本のリード線に接続部１０を設けることに
より、異常な温度上昇で通電が遮断され電動機焼損に至
るのを防止することができる。Further, when the motor used in the hermetic electric compressor is a three-phase induction motor, the connecting portion 10 is provided on two of the three lead wires of the three-phase winding. It is possible to prevent the power supply from being interrupted due to an abnormal temperature rise and causing the motor to burn.
【００１８】なお、接続部１０の構造としては、図５に
示すように、耐熱フィルム等の絶縁材１３を用いたチュ
ーブのほぼ中央部に配置されたはんだ９と、チューブの
両開口側から挿入され、前記はんだ内に埋設された相対
向するリード線の芯線とで前記接続部を構成したことに
より、異常な温度上昇で通電が遮断され電動機焼損に至
るのを防止することができる。As shown in FIG. 5, the connecting portion 10 has a structure in which the solder 9 is disposed substantially at the center of the tube using an insulating material 13 such as a heat-resistant film, and is inserted from both sides of the tube. In addition, since the connection portion is constituted by the core wires of the opposing lead wires embedded in the solder, it is possible to prevent the current from being interrupted due to an abnormal temperature rise and to prevent the motor from burning.
【００１９】また、別の接続部１０の構成として、図６
に示すような所定温度で溶融する金属部品（導電材料）
１５を用いて、その両端の開口からリード線を挿入し、
金属部品１５の部分をかしめる構造としてもよい。FIG. 6 shows another configuration of the connecting portion 10.
Metal parts (conductive materials) that melt at a predetermined temperature as shown in
Using 15, insert the lead wires from the openings at both ends,
The structure of caulking the metal part 15 may be employed.
【００２０】[0020]
【発明の効果】以上説明したように請求項１の発明によ
れば、リード線の途中を分離するように間隙を設け、こ
の間隙を所定温度で溶融する導電材料で充填して接続部
を形成し、この接続部を前記巻線のコイルエンドの中に
埋め込むか、または、コイルエンド表面に装着したこと
により、電動機巻線の異常な温度上昇時に接続部の導電
材料が溶けて、巻線への通電を遮断するので、保護性能
を向上した密閉型電動圧縮機を提供することが可能にな
る。As described above, according to the first aspect of the present invention, a gap is provided so as to separate the middle of a lead wire, and the gap is filled with a conductive material that melts at a predetermined temperature to form a connection portion. By embedding this connection portion in the coil end of the winding or mounting it on the surface of the coil end, the conductive material of the connection portion melts when the temperature of the motor winding rises abnormally, and Is shut off, so that it is possible to provide a hermetic electric compressor with improved protection performance.
【００２１】請求項２の発明によれば、電動機が単相誘
導電動機であって、接続部を巻線の共通引出しリード線
に設けたことにより、１つの接続部で主巻線と補助巻線
への通電を同時に遮断できるので、密閉型電動圧縮機の
保護を確実に行うことが可能になる。また、主巻線と補
助巻線の引き出しリード線両方に接続部を設けるより、
共通引き出しリード線に１つ接続部を設けた方が安価に
なる。According to the second aspect of the present invention, the motor is a single-phase induction motor, and the connection portion is provided on the common lead wire of the winding. Since the power supply to the compressor can be simultaneously cut off, it is possible to reliably protect the hermetic electric compressor. Also, rather than providing connection parts on both the lead wires of the main winding and the auxiliary winding,
It is cheaper to provide one connecting portion on the common lead wire.
【００２２】請求項３の発明によれば、電動機が単相誘
導電動機であって、接続部をコイルエンドの主巻線の束
と補助巻線の束の間に挿入したことにより、１つの接続
部で主巻線と補助巻線の温度を感知できるので、巻線間
のショートや回転子拘束などによる異常な温度上昇に対
し、安価で確実に密閉型電動圧縮機の保護を行うことが
可能になる。According to the third aspect of the present invention, the motor is a single-phase induction motor, and the connection portion is inserted between the bundle of the main windings and the bundle of the auxiliary windings at the coil end, so that one connection portion is used. Since the temperature of the main winding and the auxiliary winding can be sensed, it is possible to reliably and inexpensively protect the hermetic electric compressor against abnormal temperature rise due to short-circuit between windings or rotor constraint. .
【００２３】請求項４の発明によれば、電動機が三相誘
導電動機であって、接続部を２つ以上のリード線に設け
たことにより三相の巻線への通電を遮断できるので、確
実に密閉型電動圧縮機の保護を行うことが可能になる。
また、三相の３本のリード線それぞれに接続部を設ける
より、２本に接続部を設けた方が安価となる。According to the fourth aspect of the present invention, the motor is a three-phase induction motor, and since the connection portion is provided on two or more lead wires, the power supply to the three-phase winding can be cut off. Thus, the hermetic electric compressor can be protected.
In addition, it is cheaper to provide two connecting portions than to provide connecting portions for each of three three-phase lead wires.
【００２４】請求項５の発明によれば、耐熱フィルム等
の絶縁材料からなるチューブのほぼ中央部に配置された
導電材料と、チューブの両開口側から挿入され、前記導
電材料内に埋設された相対向するリード線の芯線とで前
記接続部を構成することにより、安価で安全性の高い保
護機能を容易に設けることができる。According to the fifth aspect of the present invention, a conductive material disposed substantially at the center of a tube made of an insulating material such as a heat-resistant film, and inserted from both opening sides of the tube and embedded in the conductive material. By configuring the connection portion with the core wires of the lead wires facing each other, it is possible to easily provide an inexpensive and highly safe protection function.
【図１】本発明の実施例である接続部の断面図。FIG. 1 is a sectional view of a connecting portion according to an embodiment of the present invention.
【図２】本発明の実施例である固定子の底面図。FIG. 2 is a bottom view of the stator according to the embodiment of the present invention.
【図３】本発明の実施例である密閉型電動圧縮機の断面
図。FIG. 3 is a sectional view of the hermetic electric compressor according to the embodiment of the present invention.
【図４】本発明の実施例である保護動作後の断面図。FIG. 4 is a sectional view after a protection operation according to an embodiment of the present invention.
【図５】本発明の実施例である接続部の断面図。FIG. 5 is a sectional view of a connection portion according to an embodiment of the present invention.
【図６】本発明の別の実施例である接続部の断面図。FIG. 6 is a sectional view of a connection portion according to another embodiment of the present invention.
１ 密閉容器 ２ 圧縮要素 ３ 巻線 ４ 固定子 ５ 回転子 ６ リード線 ７ 電源供給端子 ８ リード線の芯線 ９ はんだ １０ 接続部 １１ 主巻線のコイルエンド １２ 補助巻線のコイルエンド １３ 絶縁材 １５ 金属部品 ２０ 電動機 DESCRIPTION OF SYMBOLS 1 Closed container 2 Compression element 3 Winding 4 Stator 5 Rotor 6 Lead wire 7 Power supply terminal 8 Lead wire 9 Solder 10 Connection part 11 Coil end of main winding 12 Coil end of auxiliary winding 13 Insulation material 15 Metal parts 20 Electric motor
Claims (5)
を駆動する電動機とを収容し、前記電動機には、この電
動機の巻線と電源供給端子間とを接続するリード線を備
えた密閉型電動圧縮機において、前記リード線の途中を
分離するように間隙を設け、この間隙を所定温度で溶融
する導電材料で充填して接続部を形成し、この接続部を
前記巻線のコイルエンドの中に埋め込むか、または、コ
イルエンド表面に装着したことを特徴とする密閉型電動
圧縮機。1. A hermetically sealed container containing a compression mechanism and a motor for driving the compression mechanism, the motor having a lead wire connecting a winding of the motor and a power supply terminal. In the electric compressor, a gap is provided so as to separate the middle of the lead wire, and the gap is filled with a conductive material that melts at a predetermined temperature to form a connection portion. A hermetic electric compressor, wherein the hermetic compressor is embedded in or mounted on a coil end surface.
前記接続部を巻線の共通引き出しリード線に設けたこと
を特徴とする請求項１に記載の密閉型電動圧縮機。2. The electric motor is a single-phase induction motor,
The hermetic electric compressor according to claim 1, wherein the connection portion is provided on a common lead wire of a winding.
前記接続部をコイルエンドの主巻線の束と補助巻線の束
の間に挿入したことを特徴とする請求項１または請求項
２に記載の密閉型電動圧縮機。3. The motor is a single-phase induction motor,
3. The hermetic electric compressor according to claim 1, wherein the connection portion is inserted between a bundle of main windings and a bundle of auxiliary windings at a coil end. 4.
前記接続部を２つ以上のリード線に設けたことを特徴と
する請求項１に記載の密閉型電動圧縮機。4. The motor is a three-phase induction motor,
The hermetic electric compressor according to claim 1, wherein the connection portion is provided on two or more lead wires.
ーブのほぼ中央部に配置された導電材料と、チューブの
両開口側から挿入され、前記導電材料内に埋設された相
対向するリード線の芯線とで前記接続部を構成したこと
を特徴とする請求項１ないし請求項４に記載の密閉型電
動圧縮機。5. A conductive material disposed substantially at the center of a tube made of an insulating material such as a heat-resistant film, and a core wire of opposing lead wires inserted from both opening sides of the tube and embedded in the conductive material. The hermetic electric compressor according to any one of claims 1 to 4, wherein the connecting portion is configured by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000077672A JP2001263238A (en) | 2000-03-21 | 2000-03-21 | Hermetically sealed motor-driven compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000077672A JP2001263238A (en) | 2000-03-21 | 2000-03-21 | Hermetically sealed motor-driven compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001263238A true JP2001263238A (en) | 2001-09-26 |
Family
ID=18595205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000077672A Pending JP2001263238A (en) | 2000-03-21 | 2000-03-21 | Hermetically sealed motor-driven compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001263238A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008032942A1 (en) * | 2006-09-11 | 2008-03-20 | Samsung Gwangju Electronics Co., Ltd. | Hermetic compressor |
| KR100910698B1 (en) | 2002-10-21 | 2009-08-04 | 파나소닉 주식회사 | Reciprocating electric compressor |
| KR101235192B1 (en) | 2006-09-11 | 2013-02-20 | 삼성전자주식회사 | Hermetic Compressor |
| KR101397040B1 (en) * | 2008-01-29 | 2014-05-21 | 엘지전자 주식회사 | Motor, a manufacturing method of the same and a home appliance including the same |
| KR101397041B1 (en) | 2008-01-29 | 2014-05-21 | 엘지전자 주식회사 | Motor and a home appliance including the same |
| WO2016203042A1 (en) | 2015-06-19 | 2016-12-22 | Wobben Properties Gmbh | Thermal fuse protection of a form coil generator of a wind power plant |
-
2000
- 2000-03-21 JP JP2000077672A patent/JP2001263238A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100910698B1 (en) | 2002-10-21 | 2009-08-04 | 파나소닉 주식회사 | Reciprocating electric compressor |
| WO2008032942A1 (en) * | 2006-09-11 | 2008-03-20 | Samsung Gwangju Electronics Co., Ltd. | Hermetic compressor |
| KR101235192B1 (en) | 2006-09-11 | 2013-02-20 | 삼성전자주식회사 | Hermetic Compressor |
| KR101397040B1 (en) * | 2008-01-29 | 2014-05-21 | 엘지전자 주식회사 | Motor, a manufacturing method of the same and a home appliance including the same |
| KR101397041B1 (en) | 2008-01-29 | 2014-05-21 | 엘지전자 주식회사 | Motor and a home appliance including the same |
| WO2016203042A1 (en) | 2015-06-19 | 2016-12-22 | Wobben Properties Gmbh | Thermal fuse protection of a form coil generator of a wind power plant |
| DE102015211390A1 (en) * | 2015-06-19 | 2017-03-09 | Wobben Properties Gmbh | Thermal protection of a shaped coil generator of a wind energy plant |
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