CN105914099B - A kind of high-power temperature protector - Google Patents
A kind of high-power temperature protector Download PDFInfo
- Publication number
- CN105914099B CN105914099B CN201610438588.8A CN201610438588A CN105914099B CN 105914099 B CN105914099 B CN 105914099B CN 201610438588 A CN201610438588 A CN 201610438588A CN 105914099 B CN105914099 B CN 105914099B
- Authority
- CN
- China
- Prior art keywords
- motor
- temperature
- power
- circuit
- torque
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0852—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load directly responsive to abnormal temperature by using a temperature sensor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H2037/528—Thermally-sensitive members actuated due to deflection of bimetallic element the bimetallic element being composed of more than two layers
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The present invention relates to a kind of high-power temperature protector, and it is used in electric motor protecting control system, and the real time temperature of motor is detected, and the fast cut-off circuit when detection temperature exceedes setting value, realizes the rotation-clogging protection of motor；High-power temperature protector shell is integral sealing welding structure, disclosure satisfy that the quality requirement of motor enamel-covered wire winding vacuum paint dipping technique；Using bimetallic sheet structure, realize from 80 degree of temperature protections to high temperature 180 degree of low temperature；Insulator is refractory glass fibre material or high temperature ceramic material, realizes high-temperature insulation；High-power temperature protector also includes auxiliary movement structure built in one, realizes the rapid cut-out between movable contact and stationary contact.The high-power temperature protector of the present invention has high current resistance characteristics and high-temperature insulation characteristic; it uses totally-enclosed structure, adapts to the condition of work of vacuum paint dipping, and can realize rapid cut-out; available in electric motor protecting control system, there is excellent motor rotation blockage protection feature.
Description
Technical field
The present invention relates to protection control technology field, more particularly to a kind of high-power temperature protector.
Background technology
Temperature protector is the temperature change according to working environment, physical deformation occurs in switch internal, so as to produce certain
A little special effectses, produce a series of Automatic Control Components of disconnection action, so as to control device operation to reach preferable temperature
Degree protection and control effect, its application is very extensive, is applied according to different types of temperature controller in household electrical appliances, motor, refrigeration
Or in numerous products such as heating.Bimetal leaf is also referred to as thrermostatic bimetal-plate, because the thermal coefficient of expansion of each layer metal is different, works as temperature
During change, the deformation of active layers is greater than the deformation of passive layer, so as to bimetal leaf entirety will to passive layer curving,
Then the curvature of this composite changes so as to produce deformation.Wherein, what the coefficient of expansion was higher is referred to as active layers；Expansion system
The relatively low referred to as passive layer of number.But as the expansion of bimetallic application field and the progress of combination technology, modern age mutually occur
Three layers, four layers, five layers of bimetallic.In fact, every temperature dependent changes and the combined material of change in shape occurs, exist now
Traditionally it is still referred to as thermo bimetal.
Temperature protector running current on the market is more can not to bear high-power high-current within 10A, and absolutely
Edge layer can not realize high-temperature insulation, and the cut-off velocity of temperature protector does not reach the sensitivity requirements of high power device yet, thus
There is larger demand for can be used in powerful temperature protector in the high power devices such as motor in the market.
The content of the invention
In view of the above-mentioned problems, the invention provides a kind of high-power with high current resistance characteristics and high-temperature insulation characteristic
Temperature protector, it uses totally-enclosed structure, adapts to the condition of work of vacuum paint dipping, and can realize rapid cut-out, can use
In electric motor protecting control system, there is excellent motor rotation blockage protection feature.
The present invention is specially a kind of high-power temperature protector, and it is used in electric motor protecting control system, the electric motor protecting
Control system include AC power, biphase rectification/inverter circuit, two-way DC/DC converters, power-supplying circuit, energy storage device,
High-power temperature protector, motor, direct torque circuit, microprocessor and host computer, it is the AC power, described two-way whole
Stream/inverter circuit, the two-way DC/DC converters, the power-supplying circuit, the high-power temperature protector and the electricity
Machine is sequentially connected, and the power-supplying circuit is also connected to the energy storage device, described in the AC power normal power supply
Power-supplying circuit becomes the alternating current that AC power provides by the biphase rectification/inverter circuit and the two-way DC/DC
Parallel operation is converted into the direct current of specific voltage and supplies the motor by the high-power temperature protector, and by unnecessary electric energy
It is stored in the energy storage device, when the AC supply voltage is less than setting value, the power-supplying circuit is by the storage
Electric energy in energy device supplies the motor by the high-power temperature protector, and passes through the two-way DC/DC converters
With the biphase rectification/inverter circuit is counter supplies the AC power, the microprocessor is connected respectively to the power supply control
Circuit, the high-power temperature protector, the direct torque circuit and host computer, the microprocessor pass through the torque control
Torque of the circuit processed to the motor is controlled, the microprocessor also by 4G, WLAN and Bluetooth wireless communication mode with
Host computer is communicated, by the real time temperature of the motor and working condition, the high-power temperature protector on off operating mode,
The torque parameter of the motor is real-time transmitted to the host computer, and the host computer is protected to the motor, the high-power temperature
Shield device and the direct torque circuit are monitored in real time, it is characterised in that：
The high-power temperature protector detects to the real time temperature of the motor, and exceedes setting in detection temperature
Fast cut-off circuit during value, realize the rotation-clogging protection of the motor；
The high-power temperature protector include terminal, insulator, end cap, heater, iron nail, bimetal leaf, movable contact,
Stationary contact and shell, for the insulator between the terminal and the end cap, the terminal is connected to the heater, institute
State and the iron nail is provided with heater, described bimetal leaf one end is fixed to the iron nail, and the other end is welded with described dynamic tactile
Point, by controlling the stable contact pressure of welding and assembling height of the movable contact, the stationary contact is arranged at the interior of the shell
On wall；
The movable contact and the stationary contact are realized by the deformation of the bimetal leaf when detection temperature exceedes setting value
Point separation, so as to realize the rotation-clogging protection of the motor, pass through institute when detection temperature is less than setting value and reaches a period of time
The movable contact and stationary contact closure are realized in the reset for stating bimetal leaf, so that the motor recovers to run well；
The shell is integral sealing welding structure, disclosure satisfy that the quality of motor enamel-covered wire winding vacuum paint dipping technique will
Ask；
The bimetal leaf has difference using the bimetallic material coefficient of ratio that chip bends at different ambient temperatures
Different physical characteristic, using the difference of unlike material physical characteristic and differentiation PROCESS FOR TREATMENT, realize from 80 degree of low temperature to high temperature 180
The temperature protection of degree；
The insulator is refractory glass fibre material or high temperature ceramic material, realizes high-temperature insulation；
The high-power temperature protector also includes auxiliary movement structure built in one, realizes the movable contact and the stationary contact
Rapid cut-out between point.
The built-in auxiliary movement structure is an auxiliary shell fragment, and the auxiliary shell fragment is arranged at the iron nail and double gold
It is described double during the bimetal leaf is deformed upon so that the movable contact separates with the stationary contact between belonging to piece
Sheet metal rotates along the iron nail, and the auxiliary shell fragment applies motive force on the head of the bimetal leaf so that described double
The movable contact on sheet metal realizes quick separating with the stationary contact, so as to realize the quick rotation-clogging protection of motor.
When the motor enters locked rotor condition, the microprocessor is also by the direct torque circuit to the motor
Torque be controlled, when the temperature of the motor detected is low, torque of the direct torque circuit to the motor
It is high to intervene the frequency of control, torque reduction amplitude is small, when the temperature of the motor detected is high, the direct torque circuit
The frequency of torque intervention control to the motor is low, and torque reduction amplitude is big, when the temperature of the motor reaches the motor
During the safe temperature range maximum that can be born, the microprocessor directly controls the torque of the motor to be reduced to zero, holds
Torque recovery is carried out again after continuous a period of time, so as to realize heat radiation protection of the motor in locked rotor condition.
The bimetal leaf is spiral bimetal leaf or butterfly bimetal leaf.The active layer material of the bimetal leaf is
Nichrome or nicalloy, passive layer material are dilval.The material of the terminal is kovar alloy, the end cap
Material be SPCC steel.The material of the heater is electrothermal alloy.The material of the iron nail is SPCC steel.The movable contact and
The material of the stationary contact is silver alloy composite material.The material of the shell is SPCE steel.
The high-power temperature protector of the present invention uses above-mentioned technology, can reach following technique effect：Good seal performance,
It disclosure satisfy that application of vacuum and liquid immerse test and installation requirement；Insulation resistance can be good, can expire using in protector
The sufficient national standard of the pressure-resistant indices of insulation in to(for) temperature protector；Chemical property is stable, and processability is good, and cost is cheap；High temperature
It is good to be resistant to performance, overcome the encapsulant of general epoxy medium not resistant against high temperatures the defects of；Adapt to the high-power work of high current
Make environment, suitable for high power devices such as motors；The temperature change of environment or protected device can be rapidly and accurately responded, reliably
Ground cuts off circuit, and motor rotation blockage protection is stably and controllable.
Brief description of the drawings
Fig. 1 is electric motor protecting Control system architecture block diagram；
Fig. 2 is the structural representation of high-power temperature protector；
Fig. 3 is the top view of high-power temperature protector.
Embodiment
The embodiment of the present invention is elaborated below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of high-power temperature protector of the present invention is used in electric motor protecting control system, electric motor protecting
Control system include AC power, biphase rectification/inverter circuit, two-way DC/DC converters, power-supplying circuit, energy storage device,
High-power temperature protector, motor, direct torque circuit, microprocessor and host computer, it is the AC power, described two-way whole
Stream/inverter circuit, the two-way DC/DC converters, the power-supplying circuit, the high-power temperature protector and the electricity
Machine is sequentially connected, and the power-supplying circuit is also connected to the energy storage device, described in the AC power normal power supply
Power-supplying circuit becomes the alternating current that AC power provides by the biphase rectification/inverter circuit and the two-way DC/DC
Parallel operation is converted into the direct current of specific voltage and supplies the motor by the high-power temperature protector, and by unnecessary electric energy
It is stored in the energy storage device, when the AC supply voltage is less than setting value, the power-supplying circuit is by the storage
Electric energy in energy device supplies the motor by the high-power temperature protector, and passes through the two-way DC/DC converters
With the biphase rectification/inverter circuit is counter supplies the AC power, the microprocessor is connected respectively to the power supply control
Circuit, the high-power temperature protector, the direct torque circuit and host computer, the microprocessor pass through the torque control
Torque of the circuit processed to the motor is controlled, the microprocessor also by 4G, WLAN and Bluetooth wireless communication mode with
Host computer is communicated, by the real time temperature of the motor and working condition, the high-power temperature protector on off operating mode,
The torque parameter of the motor is real-time transmitted to the host computer, and the host computer is protected to the motor, the high-power temperature
Shield device and the direct torque circuit are monitored in real time.
High-power temperature protector detects to the real time temperature of motor, and quick when detection temperature exceedes setting value
Circuit is cut off, realizes the rotation-clogging protection of the motor, as shown in Figures 2 and 3, high-power temperature protector includes terminal 1, insulation
Body 2, end cap 3, heater 4, iron nail 5, bimetal leaf 6, movable contact 7, stationary contact 8 and shell 9, insulator 2 are located at terminal 1 and end
Between lid 3, terminal 1 is connected to heater 4, iron nail 5 is provided with heater 4, the one end of bimetal leaf 6 is fixed to iron nail 5, another
End is welded with movable contact 7, and by controlling the stable contact pressure of welding and assembling height of movable contact 7, stationary contact 8 is arranged at shell 9
Inwall on.
Realize that movable contact 7 and stationary contact 8 separate by the deformation of bimetal leaf 6 when detection temperature exceedes setting value, from
And the rotation-clogging protection of motor is realized, pass through the reset of bimetal leaf 6 when detection temperature is less than setting value and reaches a period of time
Realize that movable contact 7 and stationary contact 8 close, so that motor recovers to run well.
Shell 9 is integral sealing welding structure, disclosure satisfy that the quality requirement of motor enamel-covered wire winding vacuum paint dipping technique.
Bimetal leaf 6 is special using the discrepant physics of the bimetallic material coefficient of ratio that chip bends at different ambient temperatures
Property, using the difference of unlike material physical characteristic and differentiation PROCESS FOR TREATMENT, realize and protected from 80 degree of temperature to high temperature 180 degree of low temperature
Shield.Insulator 2 is refractory glass fibre material or high temperature ceramic material, realizes high-temperature insulation.
High-power temperature protector also includes auxiliary movement structure built in one（Do not marked in figure）, realize movable contact 7 and quiet
Rapid cut-out between contact 8.The built-in auxiliary movement structure is an auxiliary shell fragment, and the auxiliary shell fragment is arranged at iron nail 5
Between bimetal leaf 6, during bimetal leaf 6 is deformed upon so that movable contact 7 separates with stationary contact 8, bimetal leaf 6
Rotated along iron nail 5, the auxiliary shell fragment applies motive force on the head of bimetal leaf 6 so that the movable contact on bimetal leaf 6
7 realize quick separating with stationary contact 8, so as to realize the quick rotation-clogging protection of motor.
When the motor enters locked rotor condition, the microprocessor is also by the direct torque circuit to the motor
Torque be controlled, when the temperature of the motor detected is low, torque of the direct torque circuit to the motor
It is high to intervene the frequency of control, torque reduction amplitude is small, when the temperature of the motor detected is high, the direct torque circuit
The frequency of torque intervention control to the motor is low, and torque reduction amplitude is big, when the temperature of the motor reaches the motor
During the safe temperature range maximum that can be born, the microprocessor directly controls the torque of the motor to be reduced to zero, holds
Torque recovery is carried out again after continuous a period of time, so as to realize heat radiation protection of the motor in locked rotor condition.
In the present invention preferably, bimetal leaf 6 is spiral bimetal leaf or butterfly bimetal leaf, the master of bimetal leaf 6
Dynamic layer material is nichrome or nicalloy, and passive layer material is dilval, and the material of terminal 1 is kovar alloy,
The material of end cap 3 is SPCC steel, and the material of heater 4 is electrothermal alloy, and the material of iron nail 5 is SPCC steel, movable contact 7 and stationary contact
The material of point 8 is silver alloy composite material, and the material of shell 9 is SPCE steel.
Finally it should be noted that only illustrating technical scheme rather than its limitations with reference to above-described embodiment.Institute
The those of ordinary skill in category field is it is to be understood that those skilled in the art can repair to the embodiment of the present invention
Change or equivalent substitution, but these modifications or change are among pending claims are applied for.
Claims (5)
1. a kind of high-power temperature protector, it is used in electric motor protecting control system, and the electric motor protecting control system includes handing over
Flow power supply, biphase rectification/inverter circuit, two-way DC/DC converters, power-supplying circuit, energy storage device, high-power temperature protection
Device, motor, direct torque circuit, microprocessor and host computer, it is the AC power, the biphase rectification/inverter circuit, described
Two-way DC/DC converters, the power-supplying circuit, the high-power temperature protector and the motor are sequentially connected, described
Power-supplying circuit is also connected to the energy storage device, and in the AC power normal power supply, the power-supplying circuit will
The alternating current that AC power provides is converted into specific by the biphase rectification/inverter circuit and the two-way DC/DC converters
The direct current of voltage supplies the motor by the high-power temperature protector, and by unnecessary electrical power storage in the energy storage
In device, when the AC supply voltage is less than setting value, the power-supplying circuit is by the electric energy in the energy storage device
The motor is supplied by the high-power temperature protector, and by the two-way DC/DC converters and the biphase rectification/
Inverter circuit is counter to supply the AC power, and the microprocessor is connected respectively to the power-supplying circuit, described high-power
Temperature protector, the direct torque circuit and host computer, the microprocessor is by the direct torque circuit to the electricity
The torque of machine is controlled, and the microprocessor is also communicated by 4G, WLAN and Bluetooth wireless communication mode with host computer,
By the real time temperature of the motor and working condition, the torque of the on off operating mode, the motor of the high-power temperature protector
Parameter is real-time transmitted to the host computer, and the host computer is to the motor, the high-power temperature protector and the torque
Control circuit is monitored in real time, it is characterised in that：
The high-power temperature protector detects to the real time temperature of the motor, and when detection temperature exceedes setting value
Fast cut-off circuit, realize the rotation-clogging protection of the motor；
The high-power temperature protector includes terminal, insulator, end cap, heater, iron nail, bimetal leaf, movable contact, stationary contact
Point and shell, for the insulator between the terminal and the end cap, the terminal is connected to the heater, the hair
The iron nail is provided with hot body, described bimetal leaf one end is fixed to the iron nail, and the other end is welded with the movable contact, leads to
The stable contact pressure of welding and assembling height for controlling the movable contact is crossed, the stationary contact is arranged on the inwall of the shell；
The movable contact and the stationary contact point are realized by the deformation of the bimetal leaf when detection temperature exceedes setting value
From so as to realize the rotation-clogging protection of the motor, when detection temperature is less than setting value and reaches a period of time by described double
The movable contact and stationary contact closure are realized in the reset of sheet metal, so that the motor recovers to run well；
The shell is integral sealing welding structure, disclosure satisfy that the quality requirement of motor enamel-covered wire winding vacuum paint dipping technique；
The bimetal leaf is discrepant using the bimetallic material coefficient of ratio that chip bends at different ambient temperatures
Physical characteristic, using the difference of unlike material physical characteristic and differentiation PROCESS FOR TREATMENT, realize from 80 degree of low temperature to high temperature 180 degree
Temperature protection；
The insulator is refractory glass fibre material or high temperature ceramic material, realizes high-temperature insulation；
The high-power temperature protector also includes auxiliary movement structure built in one, realize the movable contact and the stationary contact it
Between rapid cut-out；
The built-in auxiliary movement structure is an auxiliary shell fragment, and the auxiliary shell fragment is arranged at the iron nail and the bimetal leaf
Between, during the bimetal leaf is deformed upon so that the movable contact separates with the stationary contact, the bimetallic
Piece rotates along the iron nail, and the auxiliary shell fragment applies motive force on the head of the bimetal leaf so that the bimetallic
The movable contact on piece realizes quick separating with the stationary contact, so as to realize the quick rotation-clogging protection of motor；
When the motor enters locked rotor condition, the microprocessor is also turned by the direct torque circuit to the motor
Square is controlled, when the temperature of the motor detected is low, torque intervention of the direct torque circuit to the motor
The frequency of control is high, and torque reduction amplitude is small, and when the temperature of the motor detected is high, the direct torque circuit is to institute
State motor torque intervention control frequency it is low, torque reduce amplitude it is big, when the temperature of the motor reaches the motor can
During the safe temperature range maximum born, the microprocessor directly controls the torque of the motor to be reduced to zero, continues one
Torque recovery is carried out again after the section time, so as to realize heat radiation protection of the motor in locked rotor condition；The bimetal leaf is spiral shell
Rotating bimetal leaf or butterfly bimetal leaf；The active layer material of the bimetal leaf is nichrome or nicalloy,
Passive layer material is dilval.
2. a kind of high-power temperature protector according to claim 1, it is characterised in that the material of the terminal is to cut down
Alloy, the material of the end cap is SPCC steel.
3. a kind of high-power temperature protector according to claim 1, it is characterised in that the material of the heater is electricity
Thermalloy.
4. a kind of high-power temperature protector according to claim 1, it is characterised in that the material of the iron nail is SPCC
Steel.
5. a kind of high-power temperature protector according to claim 1, it is characterised in that the movable contact and the stationary contact
The material of point is silver alloy composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438588.8A CN105914099B (en) | 2016-06-19 | 2016-06-19 | A kind of high-power temperature protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438588.8A CN105914099B (en) | 2016-06-19 | 2016-06-19 | A kind of high-power temperature protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105914099A CN105914099A (en) | 2016-08-31 |
| CN105914099B true CN105914099B (en) | 2017-11-28 |
Family
ID=56751436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610438588.8A Active CN105914099B (en) | 2016-06-19 | 2016-06-19 | A kind of high-power temperature protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105914099B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4283963B2 (en) * | 2000-02-28 | 2009-06-24 | 三菱電機株式会社 | Elevator control device |
| CN204441192U (en) * | 2015-03-16 | 2015-07-01 | 江苏怡通控制***有限公司 | Temperature sensor |
| CN105186961A (en) * | 2015-09-22 | 2015-12-23 | 国网山东东营市东营区供电公司 | Motor driving system used for workover treatment |
| CN205828274U (en) * | 2016-06-19 | 2016-12-21 | 江苏怡通控制***有限公司 | A kind of high-power temperature protector |
-
2016
- 2016-06-19 CN CN201610438588.8A patent/CN105914099B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105914099A (en) | 2016-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204334356U (en) | Continuous-current plant, motor drive, air conditioner and refrigerator | |
| CN104412500A (en) | Controller of airtight electric compressor, airtight electric compression device, and household electric appliance comprising controller of airtight electric compressor and airtight electric compression device | |
| CN100376853C (en) | Compressor unit and refrigerator using the unit | |
| CN203233147U (en) | Low voltage frequency converter with overheating protection function | |
| CN105914099B (en) | A kind of high-power temperature protector | |
| CN205828274U (en) | A kind of high-power temperature protector | |
| CN206117126U (en) | Thermal protector | |
| CN106026024A (en) | Protector | |
| CN201830223U (en) | Active and passive combined power switch | |
| KR20110054476A (en) | Apparatus and method for controlling single-phase induction motor | |
| CN107800329A (en) | Motor-drive circuit and its application apparatus, motor braking method | |
| CN206835397U (en) | Electromagnetic heater and its heating control circuit | |
| CN105897065A (en) | Soft starter thyristor intelligent module and control method therefor | |
| CN108448825A (en) | High-efficiency energy-conserving small-sized three-phase water-pump motor | |
| CN206793882U (en) | A kind of safe food processor | |
| CN207489752U (en) | Threephase asynchronous coil temperature control protective device | |
| CN102610339A (en) | Temperature control resistor with combined structure | |
| KR101549864B1 (en) | Apparatus and method for controlling single-phase induction motor | |
| CN105827157A (en) | Dedicated thyristor module for soft starters | |
| CN206099305U (en) | Compressor and drive circuit thereof | |
| CN203590045U (en) | Power supply for ozone generator and ozone generator | |
| CN104426429B (en) | Positive temperature coefficient thermistor starter | |
| JP6091546B2 (en) | Rotating electrical machine control device | |
| CN2340121Y (en) | External-speed-regulating single-phase-capacitor runnig asynchronous electric motor for fan of air-conditioner | |
| CN203522587U (en) | Positive temperature coefficient thermistor starter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high power temperature protector Effective date of registration: 20210609 Granted publication date: 20171128 Pledgee: Bank of Jiangsu Co.,Ltd. Yancheng branch Pledgor: JIANGSU YITONG CONTROL SYSTEM Co.,Ltd. Registration number: Y2021320000088 |