CN206401917U - Electric machine controller high-pressure system pre-charging device - Google Patents
Electric machine controller high-pressure system pre-charging device Download PDFInfo
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- CN206401917U CN206401917U CN201621169782.2U CN201621169782U CN206401917U CN 206401917 U CN206401917 U CN 206401917U CN 201621169782 U CN201621169782 U CN 201621169782U CN 206401917 U CN206401917 U CN 206401917U
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- electric machine
- machine controller
- power supply
- voltage power
- resistance
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Abstract
The utility model discloses a kind of electric machine controller high-pressure system pre-charging device, belong to electric machinery control device technical field.Including connecting the input of high voltage power supply and the high-voltage relay driven by electric machine controller of output end, it is characterized in that, one crystal diode of positive connection and current-limiting resistor anti-reverse loop in series between the contact of high-voltage relay.It is simple with circuit, it is cheap not increase cost, workable advantage, available in the high voltage supply loop of various electric machine controllers.
Description
Technical field
The utility model discloses a kind of electric machine controller high-pressure system pre-charging device, belong to electric machinery control device technology
Field.
Background technology
As the development and low pressure brshless DC motor of Power Electronic Technique are in fields such as space flight, automobile, household appliances
Extensive use, the application of high-voltage brushless direct current generator, also as current emphasis heat subject.
The application of high-voltage brushless direct current generator is needed to be adapted to special electric machine controller, and this electric machine controller is typically adopted
With the high-voltage brushless DC MOTOR CONTROL unit based on special chip, constitute three-phase alternating current output circuit using IGBT device and drive
Motor.
Because described electric machine controller is directly connected with high direct voltage power supply circuit, easily by the height of high voltage power supply
The interference of frequency clutter, high pressure peak voltage also can produce influence to electric machine controller.In addition, to prevent positive or negative high voltage is reversed from making
Into system failure, reverse-connection preventing circuit can be typically designed, usually using anti-reverse diode, but because this anti-reverse diode work
Make that electric current is larger, voltage is higher, suitable diode is typically relatively expensive, volume big, and applicability is not high.These all have a strong impact on
To the normal work of DC motor controller.
The content of the invention
Task of the present utility model is can effectively to prevent high voltage power supply there is provided one kind for the not enough of above-mentioned prior art
High frequency spurs interference, and high pressure peak voltage to electric machine controller produce harmful effect, and with low cost it is anti-reverse
The electric machine controller high-pressure system pre-charging device of circuit.
The technical solution of the utility model is to have taken into full account custom circuit difficult point when designing precharging circuit, by diode
Connected with current-limiting resistor, by the contact two ends of the relay in parallel again of the circuit after series connection, so as to solve conventional electricity easily
Road problem；The protection circuit that wave filter and piezo-resistance are constituted is accessed in the input of high voltage power supply, in the output of high voltage power supply
End is provided with the filter circuit of capacitor and bleeder resistance composition.
In summary, a kind of electric machine controller high-pressure system pre-charging device, including connection high voltage power supply input and
The high-voltage relay driven by electric machine controller of output end, positive connection one crystal two pole between the contact of high-voltage relay
Pipe and current-limiting resistor anti-reverse loop in series.
During work, the protection that the filtered device of clutter and peak voltage and piezo-resistance of the input of high voltage power supply are constituted is electric
Road peak clipping is prevented, then the capacitor of the setting of the output end through high voltage power supply and the filter circuit of bleeder resistance composition are filtered out.
Influence can not be produced on electric machine controller.
1st, normal wiring：When high-voltage connecting is fashionable, the electric current of diode excessively stream is by current-limiting resistor current limliting, by limit
Electric current after flow resistor is smaller（I=U/R）, electric current calculates according to limiting case：800DCV（System ceiling voltage）/100Ω
（Current-limiting resistor resistance）=8A, selects operating current 8A, the diodes of reverse pressure-resistant 800DCV parameters be it is very easy, this
Sample just solves diode selecting problem.Closing relay is removed after the completion of preliminary filling again, a complete precharge function is just completed；
2nd, reverse wiring：When high pressure is positive and negative reversed, positive pole has been connected to the negative pole of diode, now voltage be input less than
In system, electric current can not form path, and precharge function is had no idea to complete, and now relay will not be closed, so as to protect whole
System.
This circuit of the utility model has taken into full account that actual circuit is difficult, so as to cleverly make use of current-limiting resistor can be with
The characteristic of electric current is limited, electric current diminishes to solve the problem of backward dioded selection.It is simple with circuit, it is cheap not
Increase cost, workable advantage, available in the high voltage supply loop of various electric machine controllers.
Below by Figure of description, make further disclose to embodiment of the present utility model.
Brief description of the drawings
Accompanying drawing 1 is structural circuit figure of the present utility model.
In figure：Y capacitance, M motors.
Embodiment
A kind of electric machine controller high-pressure system pre-charging device, including the high-voltage relay driven by electric machine controller, its
It is characterized in, one crystal diode of positive connection and in series anti-reverse of current-limiting resistor between the contact of high-voltage relay
Loop；The protection circuit that wave filter and piezo-resistance are constituted is set in the input of high voltage power supply, in the output end of high voltage power supply
The filter circuit of capacitor and bleeder resistance composition is set.
Described crystal diode selection operating current 8A, the diode of reverse pressure-resistant 1000DCV parameters.
Current-limiting resistor resistance is 100 Ω, 5W.
Described high voltage power supply input access wave filter by two identical capacity capacitor respectively with high-tension electricity
The both positive and negative polarity in source is connected, and the capacitor other end and the ground potential of two identical capacity are overlapped.
Described piezo-resistance is connected with the both positive and negative polarity of high voltage power supply respectively.
The output end of described high voltage power supply sets capacitor to be film high-voltage capacitor, capacity 50 μ F, pressure-resistant 850V.
The bleeder resistance that the output end of described high voltage power supply is set is the high pressure resistant electricity of at least 4 resistor in series compositions
Resistance.
Reference is implemented specifically to introduce in illustration：
A kind of electric machine controller high-pressure system pre-charging device, including the high-voltage relay driven by electric machine controller, its
It is characterized in that the positive anti-reverse diode of connection and the counnter attack in series of preliminary filling resistance take back between the contact of high-voltage relay
Road；The protection circuit that wave filter and piezo-resistance are constituted is set in the input of high voltage power supply, set in the output end of high voltage power supply
Put the filter circuit of capacitor and bleeder resistance composition.
The arrangements of components order priority in anti-reverse diode and preliminary filling resistance anti-reverse loop in series in accompanying drawing 1,
Influence will not be produced on function.
A kind of electric machine controller high-pressure system pre-charging device, including connection high voltage power supply input and output end by
The high-voltage relay of electric machine controller driving, it is characterized in that, positive connection one crystal two pole between the contact of high-voltage relay
Pipe and current-limiting resistor anti-reverse loop in series.
Described crystal diode selection operating current 8A, the diode of reverse pressure-resistant 1000DCV parameters, current-limiting resistor
Resistance is 100 Ω, 5W.
The input of described high voltage power supply sets the both positive and negative polarity of the capacitor of two identical capacity respectively with high voltage power supply
It is connected, the capacitor other end and the ground potential of two identical capacity are overlapped.
The output end connection film high-voltage capacitor of described high voltage power supply, capacity 50 μ F, pressure-resistant 850DCV.
The output end of described high voltage power supply is provided with bleeder resistance, and described bleeder resistance is that at least 5 specifications are
The high pressure resistant resistance of the resistant series composition of 1206 package dimensions.
The input of described high voltage power supply sets the protection circuit that piezo-resistance is constituted, described piezo-resistance respectively with
The both positive and negative polarity of high voltage power supply is connected.
1st, Y capacitance：The high frequency spurs in high pressure are absorbed, are mainly used in EMC experiments；
2nd, piezo-resistance：Prevent high pressure mutation, when there is high pressure spike, piezo-resistance can effectively absorb spike electricity
Pressure, the high voltage component of protection below；
3rd, anti-reverse diode：Main prevention both positive and negative polarity is reversed, protects high-pressure system；
4th, preliminary filling resistance（That is current-limiting resistor）：High pressure enters after system, plays the limitation function of current, is unlikely to high current
Moment is added in the high-pressure systems such as IGBT, protects high-pressure system；
5th, high-voltage relay：After the completion of precharge function, closing relay is by high pressure access system；
6th, discharge resistance：When thin-film capacitor charging, static state needs electric charge discharge when placing, and discharge resistance is used for discharge film
Quantities of charge in electric capacity；
7th, thin-film capacitor：For filtering out the clutter in high pressure, while pressure stabilization function is played, the high pressure after thin-film capacitor
It is input to again in IGBT module；
8th, IGBT module：According to software algorithm needs, the three-phase voltage that high direct voltage is converted into needing is output to motor；
9th, M motors：Three-phase asynchronous Ac motor, permagnetic synchronous motor.
Key point of the present utility model is can be seen that from the design method of embodiment to be anti-reverse diode and preliminary filling
Resistance（That is current-limiting resistor）Series connection, the preliminary filling electrical circuit of composition polarized selection, effectively reduces rush of current, also limit
The appearance of reversal connection situation.
Every variation carried out based on thinking of the present utility model, is impossible to exceed range of structures of the present utility model,
In embodiment specific part numbers and choosing value can according to specific it needs to be determined that, protection of the present utility model should not be made
Into limitation.
Claims (6)
1. a kind of electric machine controller high-pressure system pre-charging device, including connection high voltage power supply input and output end by electricity
The high-voltage relay of machine controller driving, it is characterized in that, one crystal diode of positive connection between the contact of high-voltage relay
The anti-reverse loop in series with current-limiting resistor.
2. electric machine controller high-pressure system pre-charging device according to claim 1, it is characterized in that, the described pole of crystal two
Pipe selects operating current 8A, and the diode of reverse pressure-resistant 1000DCV parameters, current-limiting resistor resistance is 100 Ω, 5W.
3. electric machine controller high-pressure system pre-charging device according to claim 1, it is characterized in that, described high voltage power supply
Input set two identical capacity capacitor be connected respectively with the both positive and negative polarity of high voltage power supply, the electricity of two identical capacity
The container other end is overlapped with ground potential.
4. electric machine controller high-pressure system pre-charging device according to claim 1, it is characterized in that, described high voltage power supply
Output end connection film high-voltage capacitor, capacity 50 μ F, pressure-resistant 850DCV.
5. electric machine controller high-pressure system pre-charging device according to claim 1, it is characterized in that, described high voltage power supply
Output end be provided with bleeder resistance, described bleeder resistance is the resistance string joint group that at least 5 specifications are 1206 package dimensions
Into high pressure resistant resistance.
6. electric machine controller high-pressure system pre-charging device according to claim 1, it is characterized in that, described high voltage power supply
Input the protection circuit that piezo-resistance is constituted is set, described piezo-resistance is connected with the both positive and negative polarity of high voltage power supply respectively
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169782.2U CN206401917U (en) | 2016-10-26 | 2016-10-26 | Electric machine controller high-pressure system pre-charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169782.2U CN206401917U (en) | 2016-10-26 | 2016-10-26 | Electric machine controller high-pressure system pre-charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206401917U true CN206401917U (en) | 2017-08-11 |
Family
ID=59507613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621169782.2U Expired - Fee Related CN206401917U (en) | 2016-10-26 | 2016-10-26 | Electric machine controller high-pressure system pre-charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206401917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950869A (en) * | 2019-03-11 | 2019-06-28 | 珠海格力电器股份有限公司 | Power supply anti-misconnection circuit, device, electrical equipment and its power supply anti-misconnection method |
| CN110065392A (en) * | 2019-03-26 | 2019-07-30 | 天津三电汽车空调有限公司 | A kind of high pressure preliminary filling module with contactor for preventing adhesion function |
-
2016
- 2016-10-26 CN CN201621169782.2U patent/CN206401917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950869A (en) * | 2019-03-11 | 2019-06-28 | 珠海格力电器股份有限公司 | Power supply anti-misconnection circuit, device, electrical equipment and its power supply anti-misconnection method |
| CN110065392A (en) * | 2019-03-26 | 2019-07-30 | 天津三电汽车空调有限公司 | A kind of high pressure preliminary filling module with contactor for preventing adhesion function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20211026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |