CN203367991U - Motor temperature protection device - Google Patents
Motor temperature protection device Download PDFInfo
- Publication number
- CN203367991U CN203367991U CN 201320419279 CN201320419279U CN203367991U CN 203367991 U CN203367991 U CN 203367991U CN 201320419279 CN201320419279 CN 201320419279 CN 201320419279 U CN201320419279 U CN 201320419279U CN 203367991 U CN203367991 U CN 203367991U
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- tds
- detect switch
- temperature detect
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- temperature
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Abstract
The utility model relates to the field of motor temperature protection, and specifically relates to a motor temperature protection device comprising a control loop of a single-phase motor. The motor temperature protection device is characterized in that in the control loop, a fuse 1RD, a start button SA, a stop button SB, a relay KM, a normally-closed temperature control switch KSD1, a normally-closed temperature control switch KSD3 and a fuse 2RD are serially connected successively between the live wire L and the null line N, wherein the start button SA is connected in parallel with a normally open contact KM2 of the relay KM; and in the control loop, a shunt trip coil QA and a normally open temperature control switch KSD2 are serially connected successively between the live wire L and the null line N, wherein the normally open temperature control switch KSD2 is connected in parallel with a normally open temperature control switch KSD4, etc. The motor temperature protection device of the utility model can be used to perform comprehensive and high-sensitivity real-time monitoring on the temperature of a start coil and an operational coil of the single-phase motor, and when the temperature of any stator coil reaches a preset temperature, the power source will be controlled so as to stop supplying power to the single-phase motor to protect the single-phase motor.
Description
Technical field
The utility model relates to motor temperature protection field, is specifically related to a kind of motor temperature protector.
Background technology
While continuing operation in the situations such as overload, phase shortage, blocking when motor, the insulation of coil of stator of motor is easy to damage, thereby various temperature protective devices occurred.
Now the temperature protective device of motor is various on the market, and pluses and minuses are respectively arranged, and roughly is divided into: 1, and insufficient sensitivity, the protection temperature is non-constant, and perhaps temperature does not still play a protective role higher than safety line yet; 2, apparatus structure complexity, high cost.And, along with aluminium core motor is universal cheaply, because copper core is larger than the ampacity of the aluminum core line of same model, under identical service condition, the stator coil of aluminium core motor more capacity damages.
The utility model content
The purpose of this utility model is to provide a kind of motor temperature protector, solves temperature protective device insufficient sensitivity in existing motor, and the problem of structure too complex high cost.
For solving above-mentioned technical problem, the utility model by the following technical solutions: a kind of motor temperature protector, comprise the control loop of monophase machine,
Be serially connected with successively fuse 1RD, start button SA, stop button SB, relay K M, normally closed temperature detect switch (TDS) KSD1, normally closed temperature detect switch (TDS) KSD3 and fuse 2RD in described control loop between live wire L and zero line N, wherein said start button SA is parallel with the normally opened contact KM2 of relay K M;
Be serially connected with successively shunt opening breaking coil QA and Chang Kai temperature detect switch (TDS) KSD2 in described control loop between live wire L and zero line N, the described temperature detect switch (TDS) KSD2 that often opens is parallel with and often opens temperature detect switch (TDS) KSD4;
Described normally closed temperature detect switch (TDS) KSD1 and Chang Kai temperature detect switch (TDS) KSD2 are arranged on the operation coil of monophase machine, and described normally closed temperature detect switch (TDS) KSD3 and Chang Kai temperature detect switch (TDS) KSD4 are arranged on the actuating coil of monophase machine;
There is the normally opened contact KM1 of relay K M to be arranged on the power line of monophase machine, be connected in series with the normally-closed contact QA1 with shunt opening breaking coil QA.
Further technical scheme is, the normally opened contact KM2 serial connection be provided with between live wire L and zero line N in described control loop by relay K M starts the startup prompting branch road that warning light HD forms; In control loop, between live wire L and zero line N, be provided with stop by the normally-closed contact KM3 of relay K M serial connection that warning light LD forms stop pointing out branch road.
Compared with prior art; the beneficial effects of the utility model are: can comprehensive, the highly sensitive actuating coil to monophase machine and the operation coil temperature monitor in real time; when any one stator coil reaches predetermined temperature; can control power supply stops, to the monophase machine power supply, playing the effect of protection monophase machine.
The accompanying drawing explanation
The circuit connection diagram that Fig. 1 is this utility model.
The installation site schematic diagram of the temperature detect switch (TDS) that Fig. 2 is this utility model in monophase machine.
The motor circuit connection layout that Fig. 3 is this utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
An embodiment of a kind of motor temperature protector of the utility model: a kind of motor temperature protector, comprise the control loop of monophase machine,
As shown in Figure 1, be serially connected with successively fuse 1RD, start button SA, stop button SB, relay K M, normally closed temperature detect switch (TDS) KSD1, normally closed temperature detect switch (TDS) KSD3 and fuse 2RD in described control loop between live wire L and zero line N, wherein said start button SA is parallel with the normally opened contact KM2 of relay K M;
Be serially connected with successively shunt opening breaking coil QA and Chang Kai temperature detect switch (TDS) KSD2 in described control loop between live wire L and zero line N, the described temperature detect switch (TDS) KSD2 that often opens is parallel with and often opens temperature detect switch (TDS) KSD4;
As shown in Figure 2, described normally closed temperature detect switch (TDS) KSD1 and Chang Kai temperature detect switch (TDS) KSD2 are arranged on the operation coil of monophase machine, and described normally closed temperature detect switch (TDS) KSD3 and Chang Kai temperature detect switch (TDS) KSD4 are arranged on the actuating coil of monophase machine;
As shown in Figure 3, there is the normally opened contact KM1 of relay K M to be arranged on the power line of monophase machine, be connected in series with the normally-closed contact QA1 with shunt opening breaking coil QA.
According to another embodiment of a kind of motor temperature protector of the utility model, the normally opened contact KM2 serial connection be provided with between live wire L and zero line N in described control loop by relay K M starts the startup prompting branch road that warning light HD forms; In control loop, between live wire L and zero line N, be provided with stop by the normally-closed contact KM3 of relay K M serial connection that warning light LD forms stop pointing out branch road.
Operation principle of the present utility model is: the normally closed temperature detect switch (TDS) KSD1 in monophase machine and any one in normally closed temperature detect switch (TDS) KSD3 trigger its normally-closed contact and disconnect because corresponding coil temperature is too high, relay K M will cut off the power supply, normally opened contact KM1 disconnects, and causes monophase machine M to stop operating;
Any one in temperature detect switch (TDS) KSD2 and Chang Kai temperature detect switch (TDS) KSD4 often opened in monophase machine triggers its normally opened contact and connects because corresponding coil temperature is too high, shunt opening breaking coil QA energising, and normally-closed contact QA1 disconnects, and causes monophase machine M to stop operating;
When running well, relay K M obtains electric, causes normally opened contact KM2 to connect, and starts warning light HD and lights, and normally-closed contact KM3 disconnects, and stops warning light LD and extinguishes, and means that one-way motors operates, otherwise in like manner.
The normally-closed contact QA1 of shunt opening breaking coil can be also release, and the release mode is +3340.
Claims (2)
1. a motor temperature protector comprises and it is characterized in that the control loop of monophase machine:
Be serially connected with successively fuse 1RD, start button SA, stop button SB, relay K M, normally closed temperature detect switch (TDS) KSD1, normally closed temperature detect switch (TDS) KSD3 and fuse 2RD in described control loop between live wire L and zero line N, wherein said start button SA is parallel with the normally opened contact KM2 of relay K M;
Be serially connected with successively shunt opening breaking coil QA and Chang Kai temperature detect switch (TDS) KSD2 in described control loop between live wire L and zero line N, the described temperature detect switch (TDS) KSD2 that often opens is parallel with and often opens temperature detect switch (TDS) KSD4;
Described normally closed temperature detect switch (TDS) KSD1 and Chang Kai temperature detect switch (TDS) KSD2 are arranged on the operation coil of monophase machine, and described normally closed temperature detect switch (TDS) KSD3 and Chang Kai temperature detect switch (TDS) KSD4 are arranged on the actuating coil of monophase machine;
There is the normally opened contact KM1 of relay K M to be arranged on the power line of monophase machine, be connected in series with the normally-closed contact QA1 with shunt opening breaking coil QA.
2. a kind of motor temperature protector according to claim 1 is characterized in that: the normally opened contact KM2 serial connection be provided with between live wire L and zero line N in described control loop by relay K M starts the startup prompting branch road that warning light HD forms; In control loop, between live wire L and zero line N, be provided with stop by the normally-closed contact KM3 of relay K M serial connection that warning light LD forms stop pointing out branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320419279 CN203367991U (en) | 2013-07-15 | 2013-07-15 | Motor temperature protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320419279 CN203367991U (en) | 2013-07-15 | 2013-07-15 | Motor temperature protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367991U true CN203367991U (en) | 2013-12-25 |
Family
ID=49815710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320419279 Expired - Lifetime CN203367991U (en) | 2013-07-15 | 2013-07-15 | Motor temperature protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367991U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863854A (en) * | 2017-12-19 | 2018-03-30 | 泰豪科技股份有限公司 | A kind of motor winding temperature protects control circuit |
| CN108565830A (en) * | 2018-07-09 | 2018-09-21 | 相变能源科技（青岛）有限公司 | Active multifunctional electric leakage protector |
| CN110381908A (en) * | 2017-03-07 | 2019-10-25 | 株式会社富士 | Auxiliary device |
| CN111756024A (en) * | 2020-06-11 | 2020-10-09 | 深圳供电局有限公司 | Circuit breaker control circuit |
-
2013
- 2013-07-15 CN CN 201320419279 patent/CN203367991U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381908A (en) * | 2017-03-07 | 2019-10-25 | 株式会社富士 | Auxiliary device |
| CN110381908B (en) * | 2017-03-07 | 2021-05-14 | 株式会社富士 | Auxiliary device |
| CN107863854A (en) * | 2017-12-19 | 2018-03-30 | 泰豪科技股份有限公司 | A kind of motor winding temperature protects control circuit |
| CN107863854B (en) * | 2017-12-19 | 2024-01-30 | 泰豪科技股份有限公司 | Motor winding temperature protection control circuit |
| CN108565830A (en) * | 2018-07-09 | 2018-09-21 | 相变能源科技（青岛）有限公司 | Active multifunctional electric leakage protector |
| CN111756024A (en) * | 2020-06-11 | 2020-10-09 | 深圳供电局有限公司 | Circuit breaker control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
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| CX01 | Expiry of patent term |