CN209658893U - The thermal protection device of motor of electric block - Google Patents
The thermal protection device of motor of electric block Download PDFInfo
- Publication number
- CN209658893U CN209658893U CN201822140640.9U CN201822140640U CN209658893U CN 209658893 U CN209658893 U CN 209658893U CN 201822140640 U CN201822140640 U CN 201822140640U CN 209658893 U CN209658893 U CN 209658893U
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- contactor
- thermistor
- motor
- output end
- transformer
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Abstract
The utility model discloses a kind of thermal protection device of motor of electric block; the thermal protection device of motor includes thermistor and controller; thermistor is embedded in enameled wire in motor inserting-coil, and two lines of thermistor are connected on the transformer 0V line of control device of electric block；The controller is connected and composed by the electric appliance component for installing on circuit boards according to electrical circuit mode, and electric appliance component includes always stopping A.C. contactor KM1, thermistor PT, rising A.C. contactor KM2, decline A.C. contactor KM3, transformer TC, reverse protector RPP and control handle ES.The utility model structure is simple, low in cost, and the controller of thermistor and electric block matches; when motor continuous work, the motor feels hot be more than thermistor setting temperature when, thermoswitch disconnect; the circuit of controller disconnects, and motor stops working, and plays the role of protecting motor.
Description
Technical field
The utility model relates to electric blocks, and in particular to the thermal protection device of motor of electric block.
Background technique
It is well known that electric block is for migrating weight, after the motor long-play of electric block, motor can be sent out
Heat will lead to electrical fault when serious, influence to keep the safety in production.
Summary of the invention
The purpose of this utility model is: design a kind of thermal protection device of motor of electric block, when the motor feels hot it is exceeded when
Motor can be allowed in time out of service, avoid safety accident, guarantee safety in production.
The technical solution of the utility model is: the thermal protection device of motor includes thermistor and controller, temperature-sensitive
Resistance is embedded in enameled wire in motor inserting-coil, and two lines of thermistor are connected on the transformer 0V line of the control device of electric block
On.The controller is connected and composed by the electric appliance component for installing on circuit boards according to electrical circuit mode, and electric appliance component includes always stopping to hand over
It flows contactor KM1, thermistor PT, rise A.C. contactor KM2, decline A.C. contactor KM3, transformer TC, reverse protection
Device RPP and control handle ES, three primary input ends for always stopping A.C. contactor KM1 are directly connected to three phase mains, always stop exchange and connect
The main output end of tentaculum KM1 is connected with the primary input end for rising A.C. contactor KM2, the input, defeated of rising A.C. contactor KM2
Outlet is correspondingly connected with the input of decline A.C. contactor KM3, output end respectively, and the output end and motor M input terminal of KM2 connects
It connects, the input terminal of transformer TC connects power supply, and the output end of transformer TC connects the one end thermistor PT, and thermistor PT is another
End connection control handle ES's always stops button SB1, start button and reverse protector RPP, and reverse protector RPP connection always stops to hand over
Contactor KM1 output end is flowed, rises 2 output end of A.C. contactor KM2 loop A and is connected with rising button SB2 rising contact, decline
3 output end of A.C. contactor KM3 loop A is connected with declines button SB3 decline contact.
The utility model has the advantages that: structure is simple, low in cost, and the controller of thermistor and electric block is mating to be made
With, when motor continuous work, the motor feels hot be more than thermistor setting temperature when, thermoswitch disconnect, the circuit of controller
It disconnects, motor stops working, and plays the role of protecting motor.
Detailed description of the invention
Fig. 1 is the electrically susceptible resistance schematic view of the mounting position of the utility model.
Fig. 2 is the circuit diagram of the utility model.
Specific embodiment
Technical solutions of the utility model are further illustrated with reference to the accompanying drawing.
As shown in Figure 1, 2, which includes thermistor and controller, and thermistor is in motor inserting-coil
It is embedded in enameled wire, two lines of thermistor are connected on the transformer 0V line of control device of electric block.
As shown in Fig. 2, the controller is connected and composed by the electric appliance component for installing on circuit boards according to electrical circuit mode, electric appliance
Component includes always stopping A.C. contactor KM1, thermistor PT, rising A.C. contactor KM2, decline A.C. contactor KM3, transformation
Device TC, reverse protector RPP and control handle ES, three primary input ends for always stopping A.C. contactor KM1 are directly connected to three-phase electricity
Source, the main output end for always stopping A.C. contactor KM1 are connected with the primary input end for rising A.C. contactor KM2, rise ac contactor
The input of device KM2, output end are correspondingly connected with the input of decline A.C. contactor KM3, output end respectively, the output end of KM2 with
The connection of motor M input terminal, the input terminal of transformer TC connect power supply, and the output end of transformer TC connects the one end thermistor PT,
Thermistor PT other end connection control handle ES's always stops button SB1, start button and reverse protector RPP, reverse to protect
Device RPP connection always stops A.C. contactor KM1 output end, rises on 2 output end of A.C. contactor KM2 loop A and rising button SB2
It rises contact to be connected, decline 3 output end of A.C. contactor KM3 loop A is connected with declines button SB3 decline contact.
Claims (1)
1. the thermal protection device of motor of electric block, it is characterized in that: the thermal protection device of motor includes thermistor and controller,
Thermistor is embedded in enameled wire in motor inserting-coil, and two lines of thermistor are connected on the transformer of the control device of electric block
On 0V line；The controller is connected and composed by the electric appliance component for installing on circuit boards according to electrical circuit mode, and electric appliance component includes total
Stop A.C. contactor KM1, thermistor PT, rises A.C. contactor KM2, is decline A.C. contactor KM3, transformer TC, reverse
Protector RPP and control handle ES, three primary input ends for always stopping A.C. contactor KM1 are directly connected to three phase mains, always stop to hand over
The main output end for flowing contactor KM1 is connected with the primary input end for rising A.C. contactor KM2, rises the defeated of A.C. contactor KM2
Enter, output end is correspondingly connected with the input of decline A.C. contactor KM3, output end respectively, output end and motor the M input of KM2
End connection, the input terminal of transformer TC connect power supply, and the output end of transformer TC connects the one end thermistor PT, thermistor PT
Other end connection control handle ES's always stops button SB1, start button and reverse protector RPP, and reverse protector RPP connection is total
Stop A.C. contactor KM1 output end, rise 2 output end of A.C. contactor KM2 loop A and be connected with rising button SB2 rising contact,
Decline 3 output end of A.C. contactor KM3 loop A is connected with declines button SB3 decline contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822140640.9U CN209658893U (en) | 2018-12-20 | 2018-12-20 | The thermal protection device of motor of electric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822140640.9U CN209658893U (en) | 2018-12-20 | 2018-12-20 | The thermal protection device of motor of electric block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209658893U true CN209658893U (en) | 2019-11-19 |
Family
ID=68517049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822140640.9U Active CN209658893U (en) | 2018-12-20 | 2018-12-20 | The thermal protection device of motor of electric block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209658893U (en) |
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2018
- 2018-12-20 CN CN201822140640.9U patent/CN209658893U/en active Active
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