JPS5915221U - Protection device for induction motor for hermetic compressor - Google Patents
Protection device for induction motor for hermetic compressorInfo
- Publication number
- JPS5915221U JPS5915221U JP11025682U JP11025682U JPS5915221U JP S5915221 U JPS5915221 U JP S5915221U JP 11025682 U JP11025682 U JP 11025682U JP 11025682 U JP11025682 U JP 11025682U JP S5915221 U JPS5915221 U JP S5915221U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- winding
- hermetic compressor
- induction motor
- main winding
- 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
Landscapes
- Protection Of Generators And Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の保護装置の回路図、第２図は本第１図
考案に係る保護装置の好適一実施例を示す回路図、第３
図は一般的な起動リレーを示す概略正面図、第４図は本
考案に係るサーマルリレーを有する起動リレーの概略正
面図、第５図は同じくサーマルリレーの斜視図、第６図
は過負荷時における密閉形圧縮機の電動機電流、温度変
化を示す図、第７図は拘束時における密閉形圧縮機の電
動機電流、温度変化を示す図ミ第８−１第９図は共に本
考案 −の徨用番説明する゛ための異常時における圧
縮機内部系と圧縮機外部系の温度特性図である。
尚、図中１１は誘導電動機、１２は主巻線、１３は起動
リレー、１′４はリレー巻線、１８はサーマルリレーで
ある。
第２図
７９ 第５図FIG. 1 is a circuit diagram of a conventional protection device, FIG. 2 is a circuit diagram showing a preferred embodiment of the protection device according to the present invention, and FIG.
The figure is a schematic front view showing a general starting relay, Fig. 4 is a schematic front view of a starting relay having a thermal relay according to the present invention, Fig. 5 is a perspective view of the thermal relay, and Fig. 6 is an overload condition. Fig. 7 is a diagram showing the motor current and temperature changes of the hermetic compressor when the hermetic compressor is restrained. It is a temperature characteristic diagram of the compressor internal system and the compressor external system during an abnormality to explain the operating number. In the figure, 11 is an induction motor, 12 is a main winding, 13 is a starting relay, 1'4 is a relay winding, and 18 is a thermal relay. Figure 2 79 Figure 5
Claims (1)
を有するコンデンサ始動形の密閉形圧縮機用誘導電動機
において、上記リレー巻線を主巻線と同一条件で発熱さ
せるべく主巻線の線径と同径に成形する一方、該リレー
巻線により熱柄応動。 され且つ異常時に上記直列回路に流れる電流に基づく主
巻線の温度上昇の時定数と同一の時定数を有するととも
に上記異常時の主巻線の限界許容温度に達する時間での
温度で作動して回路を遮断するサーマルリレーを設けた
ことを特徴とする密閉形圧縮機用誘導電動機の保護装置
。[Scope of Claim for Utility Model Registration] In a capacitor-start type induction motor for a hermetic compressor having a series circuit of the relay winding of the starting relay and the main winding of the motor, the relay winding is provided under the same conditions as the main winding. The wire is formed to have the same diameter as the main winding in order to generate heat, while the relay winding responds to the heat. and has the same time constant as the time constant of the temperature rise of the main winding based on the current flowing in the series circuit at the time of an abnormality, and operates at the temperature at which the limit allowable temperature of the main winding at the time of the above abnormality is reached. A protection device for an induction motor for a hermetic compressor, characterized by being equipped with a thermal relay that interrupts the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11025682U JPS5915221U (en) | 1982-07-22 | 1982-07-22 | Protection device for induction motor for hermetic compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11025682U JPS5915221U (en) | 1982-07-22 | 1982-07-22 | Protection device for induction motor for hermetic compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5915221U true JPS5915221U (en) | 1984-01-30 |
Family
ID=30256498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11025682U Pending JPS5915221U (en) | 1982-07-22 | 1982-07-22 | Protection device for induction motor for hermetic compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915221U (en) |
-
1982
- 1982-07-22 JP JP11025682U patent/JPS5915221U/en active Pending
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