CN205828274U - A kind of high-power temperature protector - Google Patents
A kind of high-power temperature protector Download PDFInfo
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- CN205828274U CN205828274U CN201620599028.6U CN201620599028U CN205828274U CN 205828274 U CN205828274 U CN 205828274U CN 201620599028 U CN201620599028 U CN 201620599028U CN 205828274 U CN205828274 U CN 205828274U
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- temperature
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- circuit
- torque
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Abstract
This utility model relates to a kind of high-power temperature protector, and the real time temperature of motor, in electric motor protecting control system, is detected by it, and the fast cut-off circuit when detecting temperature and exceeding setting value, it is achieved the rotation-clogging protection of motor；High-power temperature protector shell is integral sealing Welding Structure, it is possible to meet the prescription of motor enamel-covered wire winding vacuum paint dipping technique；Use bimetallic sheet structure, it is achieved from low temperature 80 degree to the temperature protection of high temperature 180 degree；Insulator is refractory glass fibre material or high temperature ceramic material, it is achieved high-temperature insulation；High-power temperature protector also includes a built-in auxiliary movement structure, it is achieved the rapid cut-out between movable contact and stationary contact.High-power temperature protector of the present utility model has big electric current resistance characteristics and high-temperature insulation characteristic; it uses total enclosing structure, adapts to the working condition of vacuum paint dipping, and is capable of cutting off rapidly; can be used in electric motor protecting control system, there is excellent motor rotation blockage protection feature.Ji property and practicality, and dustproof and waterproof, it is possible to meet transformator, the prescription of motor enamel-covered wire winding vacuum paint dipping technique.
Description
Technical field
This utility model is related to protection of controlling technical field, particularly to a kind of high-power temperature protector.
Background technology
Temperature protector is the variations in temperature according to working environment, in switch internal generation physical deformation, thus produces certain
A little special effectses, produce a series of Automatic Control Components of disconnection action, thus control the operation of equipment to reach preferable temperature
Degree protection and control effect, its range of application widely, is applied in household electrical appliances, motor, refrigeration according to different types of temperature controller
Or heat etc. in numerous products.Bimetal leaf is also referred to as thrermostatic bimetal-plate, owing to 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, thus the entirety of bimetal leaf will to passive layer curving,
The curvature of the most this composite changes thus produces deformation.Wherein, what the coefficient of expansion was higher is referred to as active layers；Expand system
What number was relatively low is referred to as passive layer.But it is as the expansion of bimetallic application and the progress of combination technology, occurred mutually modern age
Three layers, four layers, the bimetallic of five layers.It is true that every temperature dependent changes and the combined material of change of shape occurs, exist now
It is still referred to as thermo bimetal traditionally.
Temperature protector running current on the market is many within 10A, it is impossible to bear high-power high-current, and absolutely
Edge layer cannot realize high-temperature insulation, and the cut-off velocity of temperature protector does not reaches the sensitivity requirements of high power device yet, thus
There is bigger demand for can be used in powerful temperature protector in the high power devices such as motor in the market.
Utility model content
For the problems referred to above, this utility model provides a kind of has the big of big electric current resistance characteristics and high-temperature insulation characteristic
Power temperature protector, it uses total enclosing structure, adapts to the working condition of vacuum paint dipping, and be capable of cutting off rapidly,
Can be used in electric motor protecting control system, there is excellent motor rotation blockage protection feature.
This utility model is specially a kind of high-power temperature protector, and it is in electric motor protecting control system, this motor
Protection control system includes alternating current power supply, biphase rectification/inverter circuit, two-way DC/DC changer, power-supplying circuit, energy storage
Device, high-power temperature protector, motor, direct torque circuit, microprocessor and host computer, described alternating current power supply, described double
To rectification/inverter circuit, described two-way DC/DC changer, described power-supplying circuit, described high-power temperature protector and institute
Stating motor to be sequentially connected with, described power-supplying circuit is also connected to described energy storage device, when described alternating current power supply normal power supply,
The alternating current that alternating current power supply is provided by described power-supplying circuit passes through described biphase rectification/inverter circuit and described two-way DC/
DC changer is converted into the unidirectional current of specific voltage and supplies described motor through described high-power temperature protector, and by unnecessary
Electrical power storage is in described energy storage device, and when described AC supply voltage is less than setting value, described power-supplying circuit is by institute
The electric energy stated in energy storage device supplies described motor by described high-power temperature protector, and is become by described two-way DC/DC
Parallel operation and described biphase rectification/inverter circuit is counter supplies described alternating current power supply, described microprocessor is connected respectively to described power supply
Control circuit, described high-power temperature protector, described direct torque circuit and host computer, described microprocessor passes through described turn
The torque of described motor is controlled by square control circuit, and described microprocessor is also by 4G, WLAN and Bluetooth wireless communication side
Formula communicates with host computer, by real time temperature and duty, the break-make of described high-power temperature protector of described motor
State, the torque parameter of described motor are real-time transmitted to described host computer, and described host computer is to described motor, described high-power temperature
Degree protector and described direct torque circuit monitor in real time, it is characterised in that:
The real time temperature of described motor is detected by described high-power temperature protector, and exceedes setting in detection temperature
Fast cut-off circuit during value, it is achieved the rotation-clogging protection of described motor；
Described high-power temperature protector include terminal, insulator, end cap, heater, iron nail, bimetal leaf, movable contact,
Stationary contact and shell, described insulator is between described terminal and described end cap, and described terminal is connected to described heater, institute
Stating and be provided with described iron nail on heater, described bimetal leaf one end is fixed to described iron nail, and the other end is welded with described dynamic tactile
Point, stablizes contact pressure by controlling the welding and assembling height of described movable contact, and described stationary contact is arranged at the interior of described shell
On wall；
Described movable contact and described stationary contact is realized by the deformation of described bimetal leaf when detecting temperature and exceeding setting value
Point separates, thus realizes the rotation-clogging protection of described motor, passes through institute when detecting temperature and being less than setting value and reach a period of time
The reset stating bimetal leaf realizes described movable contact and described stationary contact Guan Bi, so that described motor recovers to run well；
Described shell is integral sealing Welding Structure, it is possible to the quality meeting motor enamel-covered wire winding vacuum paint dipping technique is wanted
Ask；
The coefficient of ratio that described bimetal leaf utilizes bimetallic material chip at different ambient temperatures to bend has difference
Different physical characteristic, utilizes the difference of unlike material physical characteristic and differentiation PROCESS FOR TREATMENT, it is achieved from low temperature 80 degree to high temperature 180
The temperature protection of degree；
Described insulator is refractory glass fibre material or high temperature ceramic material, it is achieved high-temperature insulation；
Described high-power temperature protector also includes a built-in auxiliary movement structure, it is achieved described movable contact and described stationary contact
Rapid cut-out between point.
Described built-in auxiliary movement structure is an auxiliary shell fragment, and described auxiliary shell fragment is arranged at described iron nail and described double gold
Belong between sheet, during described bimetal leaf deforms upon and separates with described stationary contact so that described movable contact, described double
Sheet metal rotates along described iron nail, and described auxiliary shell fragment applies motive force at the head of described bimetal leaf so that described double
Described movable contact on sheet metal and described stationary contact realize sharp separation, thus realize the quick rotation-clogging protection of motor.
Described motor enter locked rotor condition time, described microprocessor also by described direct torque circuit to described motor
Torque be controlled, when the temperature of the described motor detected is low, the torque to described motor of the described direct torque circuit
Intervening the frequency controlled high, torque drop low amplitude is little, when the temperature height of the described motor detected, and described direct torque circuit
The frequency controlling the torque intervention of described motor is low, and torque drop low amplitude is big, when the temperature of described motor reaches described motor
During the safe temperature range maximum that can bear, described microprocessor directly controls the torque of described motor and is reduced to zero, holds
Carry out torque recovery again after continuous a period of time, thus realize the described motor heat radiation protection at locked rotor condition.
Described bimetal leaf is spiral bimetal leaf or butterfly bimetal leaf.The active layers material of described bimetal leaf is
Nichrome or nicalloy, passive layer material is dilval.The material of described terminal is kovar alloy, described end cap
Material be SPCC steel.The material of described heater is electrothermal alloy.The material of described iron nail is SPCC steel.Described movable contact and
The material of described stationary contact is silver alloy composite material.The material of described shell is SPCE steel.
High-power temperature protector of the present utility model uses above-mentioned technology, it is possible to reach techniques below effect: sealing
Can be good, it is possible to meet application of vacuum and liquid immerses test and installation requirement；Insulation resistance can be good, uses energy in protector
Enough meet the pressure indices of insulation for temperature protector in GB；Stable chemical nature, processability is good, with low cost；
High temperature tolerance performance is good, overcomes the defect of the encapsulant not resistant against high temperatures of general epoxy medium；Adapt to the big merit of big electric current
Rate working environment, it is adaptable to the high power devices such as motor；Can response environment or the variations in temperature of protected device rapidly and accurately,
Being assuredly shut off circuit, motor rotation blockage protection is stablized controlled.
Accompanying drawing explanation
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.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is elaborated.
As it is shown in figure 1, the high-power temperature protector of one of the present utility model is in electric motor protecting control system, motor
Protection control system includes alternating current power supply, biphase rectification/inverter circuit, two-way DC/DC changer, power-supplying circuit, energy storage
Device, high-power temperature protector, motor, direct torque circuit, microprocessor and host computer, described alternating current power supply, described double
To rectification/inverter circuit, described two-way DC/DC changer, described power-supplying circuit, described high-power temperature protector and institute
Stating motor to be sequentially connected with, described power-supplying circuit is also connected to described energy storage device, when described alternating current power supply normal power supply,
The alternating current that alternating current power supply is provided by described power-supplying circuit passes through described biphase rectification/inverter circuit and described two-way DC/
DC changer is converted into the unidirectional current of specific voltage and supplies described motor through described high-power temperature protector, and by unnecessary
Electrical power storage is in described energy storage device, and when described AC supply voltage is less than setting value, described power-supplying circuit is by institute
The electric energy stated in energy storage device supplies described motor by described high-power temperature protector, and is become by described two-way DC/DC
Parallel operation and described biphase rectification/inverter circuit is counter supplies described alternating current power supply, described microprocessor is connected respectively to described power supply
Control circuit, described high-power temperature protector, described direct torque circuit and host computer, described microprocessor passes through described turn
The torque of described motor is controlled by square control circuit, and described microprocessor is also by 4G, WLAN and Bluetooth wireless communication side
Formula communicates with host computer, by real time temperature and duty, the break-make of described high-power temperature protector of described motor
State, the torque parameter of described motor are real-time transmitted to described host computer, and described host computer is to described motor, described high-power temperature
Degree protector and described direct torque circuit monitor in real time.
The real time temperature of motor is detected by high-power temperature protector, and quick detecting when temperature exceedes setting value
Cutting off circuit, it is achieved the rotation-clogging protection of described 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 is positioned at terminal 1 and end
Between lid 3, terminal 1 is connected to heater 4, and heater 4 is provided with iron nail 5, and bimetal leaf 6 one end is fixed to iron nail 5, another
End is welded with movable contact 7, stablizes contact pressure by controlling the welding and assembling height of movable contact 7, and stationary contact 8 is arranged at shell 9
Inwall on.
Realize movable contact 7 when detecting temperature and exceeding setting value by the deformation of bimetal leaf 6 and stationary contact 8 separates, from
And realize the rotation-clogging protection of motor, when detecting temperature and being less than setting value and reach a period of time by the reset of bimetal leaf 6
Realize movable contact 7 and stationary contact 8 closes, so that motor recovers to run well.
Shell 9 is integral sealing Welding Structure, it is possible to meet the prescription of motor enamel-covered wire winding vacuum paint dipping technique.
The discrepant physics of the coefficient of ratio that bimetal leaf 6 utilizes bimetallic material chip at different ambient temperatures to bend is special
Property, utilize the difference of unlike material physical characteristic and differentiation PROCESS FOR TREATMENT, it is achieved protect from low temperature 80 degree to the temperature of high temperature 180 degree
Protect.Insulator 2 is refractory glass fibre material or high temperature ceramic material, it is achieved high-temperature insulation.
High-power temperature protector also includes a built-in auxiliary movement structure (not marking in figure), it is achieved movable contact 7 and quiet
Rapid cut-out between contact 8.Described built-in auxiliary movement structure is an auxiliary shell fragment, and described auxiliary shell fragment is arranged at iron nail 5
And between bimetal leaf 6, during bimetal leaf 6 deforms upon and separates with stationary contact 8 so that movable contact 7, bimetal leaf 6
Rotating along iron nail 5, described auxiliary shell fragment applies motive force at the head of bimetal leaf 6 so that the movable contact on bimetal leaf 6
7 realize sharp separation with stationary contact 8, thus realize the quick rotation-clogging protection of motor.
Described motor enter locked rotor condition time, described microprocessor also by described direct torque circuit to described motor
Torque be controlled, when the temperature of the described motor detected is low, the torque to described motor of the described direct torque circuit
Intervening the frequency controlled high, torque drop low amplitude is little, when the temperature height of the described motor detected, and described direct torque circuit
The frequency controlling the torque intervention of described motor is low, and torque drop low amplitude is big, when the temperature of described motor reaches described motor
During the safe temperature range maximum that can bear, described microprocessor directly controls the torque of described motor and is reduced to zero, holds
Carry out torque recovery again after continuous a period of time, thus realize the described motor heat radiation protection at locked rotor condition.
In this utility model preferably, bimetal leaf 6 is spiral bimetal leaf or butterfly bimetal leaf, bimetal leaf 6
Active layers material be nichrome or nicalloy, passive layer material is dilval, and the material of terminal 1 is for can cut down conjunction
Gold, 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 He
The material of stationary contact 8 is silver alloy composite material, and the material of shell 9 is SPCE steel.
Finally should be noted that combining above-described embodiment only illustrates the technical solution of the utility model rather than to its limit
System.Those of ordinary skill in the field are it is to be understood that those skilled in the art can be embodied as of the present utility model
Mode is modified or equivalent, but these amendments or change are all among the claims that application is awaited the reply.
Claims (1)
1. a high-power temperature protector, it is in electric motor protecting control system, and this electric motor protecting control system includes handing over
Stream power supply, biphase rectification/inverter circuit, two-way DC/DC changer, power-supplying circuit, energy storage device, high-power temperature protection
Device, motor, direct torque circuit, microprocessor and host computer, described alternating current power supply, described biphase rectification/inverter circuit, described
Two-way DC/DC changer, described power-supplying circuit, described high-power temperature protector and described motor are sequentially connected with, described
Power-supplying circuit is also connected to described energy storage device, and when described alternating current power supply normal power supply, described power-supplying circuit will
The alternating current that alternating current power supply provides is converted into specific by described biphase rectification/inverter circuit and described two-way DC/DC changer
The unidirectional current of voltage supplies described motor through described high-power temperature protector, and by unnecessary electrical power storage in described energy storage
In device, when described AC supply voltage is less than setting value, described power-supplying circuit is by the electric energy in described energy storage device
Supply described motor by described high-power temperature protector, and by described two-way DC/DC changer and described biphase rectification/
Inverter circuit is counter supplies described alternating current power supply, and described microprocessor is connected respectively to described power-supplying circuit, described high-power
Temperature protector, described direct torque circuit and host computer, described microprocessor passes through described direct torque circuit to described electricity
The torque of machine is controlled, and described microprocessor communicates with host computer also by 4G, WLAN and Bluetooth wireless communication mode,
By real time temperature and duty, the on off operating mode of described high-power temperature protector, the torque of described motor of described motor
Parameter is real-time transmitted to described host computer, and described host computer is to described motor, described high-power temperature protector and described torque
Control circuit monitors in real time, it is characterised in that:
The real time temperature of described motor is detected by described high-power temperature protector, and when detecting temperature and exceeding setting value
Fast cut-off circuit, it is achieved the rotation-clogging protection of described motor；
Described high-power temperature protector includes terminal, insulator, end cap, heater, iron nail, bimetal leaf, movable contact, stationary contact
Point and shell, described insulator is between described terminal and described end cap, and described terminal is connected to described heater, described
Being provided with described iron nail on hot body, described bimetal leaf one end is fixed to described iron nail, and the other end is welded with described movable contact, logical
Crossing and control the welding and assembling height of described movable contact and stablize contact pressure, described stationary contact is arranged on the inwall of described shell；
Realize described movable contact when detecting temperature and exceeding setting value by the deformation of described bimetal leaf and described stationary contact divides
From, thus realize the rotation-clogging protection of described motor, when detecting temperature and being less than setting value and reach a period of time by described double
The reset of sheet metal realizes described movable contact and described stationary contact Guan Bi, so that described motor recovers to run well；
Described shell is integral sealing Welding Structure, it is possible to meet the prescription of motor enamel-covered wire winding vacuum paint dipping technique；
The coefficient of ratio that described bimetal leaf utilizes bimetallic material chip at different ambient temperatures to bend is discrepant
Physical characteristic, utilizes the difference of unlike material physical characteristic and differentiation PROCESS FOR TREATMENT, it is achieved from low temperature 80 degree to high temperature 180 degree
Temperature protection；
Described insulator is refractory glass fibre material or high temperature ceramic material, it is achieved high-temperature insulation；Described high-power temperature
Degree protector also includes a built-in auxiliary movement structure, it is achieved the rapid cut-out between described movable contact and described stationary contact, institute
Stating built-in auxiliary movement structure is an auxiliary shell fragment, and described auxiliary shell fragment is arranged between described iron nail and described bimetal leaf,
During described bimetal leaf deforms upon and separates with described stationary contact so that described movable contact, described bimetal leaf along
Described iron nail rotates, and described auxiliary shell fragment applies motive force at the head of described bimetal leaf so that on described bimetal leaf
Described movable contact and described stationary contact realize sharp separation, thus realize the quick rotation-clogging protection of motor；Enter at described motor
During locked rotor condition, the torque of described motor is controlled by described microprocessor also by described direct torque circuit, in detection
When the temperature of the described motor arrived is low, the frequency that the torque intervention of described motor is controlled by described direct torque circuit is high, torque
Reduction amplitude is little, when the temperature height of the described motor detected, and the torque intervention to described motor of the described direct torque circuit
The frequency controlled is low, and torque drop low amplitude is big, when the temperature of described motor reaches the safe temperature model that described motor can bear
When enclosing maximum, described microprocessor directly controls the torque of described motor and is reduced to zero, carries out turning after continuing for some time again
Square recovers, thus realizes the described motor heat radiation protection at locked rotor condition；Described bimetal leaf is spiral bimetal leaf or butterfly
Shape bimetal leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620599028.6U CN205828274U (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 |
|---|---|---|---|
| CN201620599028.6U CN205828274U (en) | 2016-06-19 | 2016-06-19 | A kind of high-power temperature protector |
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| Publication Number | Publication Date |
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| CN205828274U true CN205828274U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620599028.6U Expired - Fee Related CN205828274U (en) | 2016-06-19 | 2016-06-19 | A kind of high-power temperature protector |
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| CN (1) | CN205828274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914099A (en) * | 2016-06-19 | 2016-08-31 | 江苏怡通控制系统有限公司 | Large power thermal protector |
-
2016
- 2016-06-19 CN CN201620599028.6U patent/CN205828274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914099A (en) * | 2016-06-19 | 2016-08-31 | 江苏怡通控制系统有限公司 | Large power thermal protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Large power thermal protector Effective date of registration: 20180926 Granted publication date: 20161221 Pledgee: Yancheng City salt capital scientific and Technological Transformation Service Co., Ltd. Pledgor: Jiangsu Yi Tong control system Co., Ltd Registration number: 2018990000871 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20200619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |