CN203911564U - An electric bus charging machine module - Google Patents
An electric bus charging machine module Download PDFInfo
- Publication number
- CN203911564U CN203911564U CN201420253626.9U CN201420253626U CN203911564U CN 203911564 U CN203911564 U CN 203911564U CN 201420253626 U CN201420253626 U CN 201420253626U CN 203911564 U CN203911564 U CN 203911564U
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- Prior art keywords
- resistance
- power supply
- voltage stabilizing
- voltage
- electric bus
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- Expired - Fee Related
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 31
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001077 hypotensive effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to an electric bus charging machine module comprising a three-phase live wire. The three-phase live wire is connected with an active PFC module through an EMI filtering module. An output terminal of the active PFC module are divided into two paths. One path is connected to a full bridge converter and the other path is connected to an auxiliary power supply. The characteristics of the electric bus charging machine module are that an input terminal of the auxiliary power supply is in bridge joint with a piezoresistor RV1, then connected to a resistor R, and further connected to a voltage stabilizing circuit. The voltage stabilizing circuit is in connection with a rectifier bridge. An output terminal of the rectifier bridge is connected with a diode VD1 and a diode CD2 which are in parallel connection through the voltage stabilizing circuit. The output terminal of the rectifier bridge is also in bridge joint with a piezoresistor RV5. The auxiliary power supply is externally connected with an under-voltage locking and overvoltage protection circuit. According to the utility model, through reasonable arrangement, a surge spike voltage is absorbed and weakened from an input side, and simultaneously a series of improvements performed on the auxiliary power supply, assemblies susceptible to damages in the auxiliary power supply are protected; a voltage withstand level and an impact resistance power level are raised; and furthermore, protection of the auxiliary power supply is realized in an omnibearing mode through the voltage stabilizing circuit and an under-voltage protection circuit.
Description
Technical field
The utility model relates to a kind of electric bus charger module.
Background technology
Charger module in use often can cause whole module normally to work because of accessory power supply and input fault.Particularly electric bus etc. is needed to a large amount of charging devices, failure rate is higher.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide one can reduce failure rate, ensure the electric bus charger module of result of use.
Electric bus charger module provided by the utility model, comprise three-phase firewire, three-phase firewire connects active PFC module by EMI filtration module, active PFC module output is divided into two-way, one tunnel connects full-bridge conversion, another road connects accessory power supply, it is characterized in that, contact resistance R after the input cross-over connection piezo-resistance RV1 of described accessory power supply, after resistance R, connect voltage stabilizing circuit, voltage stabilizing circuit connects rectifier bridge, rectification bridge output end connects the diode VD1 of two series connection by voltage stabilizing circuit, VD2, and rectification bridge output end cross-over connection piezo-resistance RV5, and accessory power supply is circumscribed with under-voltage locking and overvoltage crowbar.
Cross-over connection piezo-resistance RV2, RV3, RV4 respectively between every live wire and zero line in three-phase firewire.
Piezo-resistance RV1 is 430-470V.
Piezo-resistance RV2, RV3, RV4 are 450-480V.
Protective resistance R1, R2 are 1.8-2.2 Ω.
Diode VD1, VD2 are 1000V.
Described voltage stabilizing circuit comprises resistance R 1, voltage stabilizing didoe VD3 and adjustment pipe VT, and resistance R 1 is connected with voltage stabilizing didoe VD3 for current limliting, and the base stage of managing VT is adjusted in voltage stabilizing didoe VD3 connection, adjusts the emitter connection rectifier bridge of pipe VT.Voltage stabilizing didoe VD3 provides stable base voltage for adjusting pipe VT, and the tube voltage drop between collector electrode and the emitter of adjustment pipe VT, as variable resistor, realizes and automatically regulates resistance size, carrys out burning voltage.Voltage stabilizing circuit ensures voltage swing in accessory power supply, improves its useful life, avoids because power network fluctuation destroys accessory power supply, and then affects whole charging module.
Protective resistance R1, R2 are 1.8-2.2 Ω, for improving shock resistance rate grade, reduce failure rate.Diode VD1, VD2 are 1000V, improve voltage withstand class, anti-breakdown.
The beneficial effect that the utility model has is; by rational setting; at power input access piezo-resistance RV2, RV3, RV4; absorb and weaken surge peak voltage from input side; protection filtration module and active PFC; by a series of improvement to accessory power supply, the inner rapid wear assembly of protection accessory power supply, improves voltage withstand class and improves shock resistance power grade simultaneously.And further carry out the protection of comprehensive realization to accessory power supply by voltage stabilizing circuit and under-voltage protecting circuit.
Brief description of the drawings
Fig. 1 is the utility model auxiliary power circuit figure;
Fig. 2 is the utility model three-phase firewire place circuit diagram;
Fig. 3 is under-voltage locking and overvoltage crowbar
In figure: 1, under-voltage locking and overvoltage crowbar.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Electric bus charger module provided by the utility model, comprise three-phase firewire, three-phase firewire connects active PFC module by EMI filtration module, active PFC module output is divided into two-way, one tunnel connects full-bridge conversion, another road connects accessory power supply, it is characterized in that, contact resistance R after the input cross-over connection piezo-resistance RV1 of described accessory power supply, after resistance R, connect voltage stabilizing circuit, voltage stabilizing circuit connects rectifier bridge, rectification bridge output end connects the diode VD1 of two series connection by voltage stabilizing circuit, VD2, and rectification bridge output end cross-over connection piezo-resistance RV5, and accessory power supply is circumscribed with under-voltage protecting circuit.Resistance R play deboost, and can play hypotensive effect.The better effects if of resistance step-down ratio capacitance decompression, and after first step-down, voltage stabilizing can significantly improve stability and the validity of whole circuit.
Voltage stabilizing circuit comprises resistance R 1, voltage stabilizing didoe VD3 and adjustment pipe VT, and resistance R 1 is connected with voltage stabilizing didoe VD3 for current limliting, and the base stage of managing VT is adjusted in voltage stabilizing didoe VD3 connection, adjusts the emitter connection rectifier bridge of pipe VT.
Voltage stabilizing didoe VD3 provides stable base voltage for adjusting pipe VT, and the tube voltage drop between collector electrode and the emitter of adjustment pipe VT, as variable resistor, realizes and automatically regulates resistance size, carrys out burning voltage.Voltage stabilizing circuit ensures voltage swing in accessory power supply, improves its useful life, avoids because power network fluctuation destroys accessory power supply, and then affects whole charging module.
At input access under-voltage locking and the overvoltage crowbar of accessory power supply, when under-voltage, introduce and supplement power supply for it fills energy, when overvoltage, disconnect accessory power supply place circuit, protective circuit element is not compromised.
Cross-over connection piezo-resistance RV2, RV3, RV4 respectively between every live wire and zero line in three-phase firewire, go out to arrange piezo-resistance at live wire, is mainly to have prevented from that electrical network from going out when voltage upwards fluctuates suddenly higher value can damage filtering and active PFC module thereafter.For whole charger module ensures input safety.
As Fig. 3; shown under-voltage locking and overvoltage crowbar be not in the time that input voltage reaches under-voltage relieving set point; under-voltage locking comparator compl is output as low level; the base drive signal of triode Ql is drawn as low level, and triode Ql is cut off, and external high-low pressure departs from relay R LYl coil must not be electric; contact PLYla disconnects; make module depart from electrical network, make the abundant energy storage of accessory power supply part simultaneously, ensure also Yla of reliable attracting electric relay contact in the time of set point.When input voltage is higher than under-voltage set point and in lower than the normal range of operation between high pressure set point time, on the one hand, comparator compl is output as high level, on the other hand, the electrical network voltage division signal detecting due to comparator comp2 backward end voltage l peak holding circuit F lower than the high pressure ratio of comparator comp2 forward end compared with voltage reference, comparator comp2 still exports high level, triode Ql conducting, accessory power supply power supply, make relay coil RLYl electricly reliable, shop, RLYla are touched in adhesive, and power module obtains electric, normally work.When input voltage is during higher than overvoltage set point; the electrical network voltage division signal detecting due to comparator comp2 backward end voltage follower F is higher than the high pressure comparative voltage of comparator comp2 forward end; comparator comp2 state changes; output low level; triode Ql is cut off, and relay R LYl coil must not be electric, break contact RLYla; power module departs from from electrical network, has protected that input electrochemical capacitor is unlikely to be damaged by overvoltage.
Embodiment 2:
The resistance of preferred piezo-resistance RV2, RV3, RV4 is selected 465V; Protective resistance R1, R2, its resistance is 1.9 Ω; Piezo-resistance RV1 is 440V.The other the same as in Example 1.
Embodiment 3:
The resistance of piezo-resistance RV2, RV3, RV4 is selected 470V; Protective resistance R1, R2, its resistance is 2.0 Ω; Piezo-resistance RV1 is 440V.The other the same as in Example 1.
Embodiment 4:
The resistance of piezo-resistance RV2, RV3, RV4 is selected 480V; Protective resistance R1, R2, its resistance is 2.1 Ω; Piezo-resistance RV1 is 460V.The other the same as in Example 1.
Claims (7)
1. an electric bus charger module, comprise three-phase firewire, three-phase firewire connects active PFC module by EMI filtration module, active PFC module output is divided into two-way, one tunnel connects full-bridge conversion, another road connects accessory power supply, it is characterized in that, contact resistance R after the input cross-over connection piezo-resistance RV1 of described accessory power supply, after resistance R, connect voltage stabilizing circuit, voltage stabilizing circuit connects rectifier bridge, rectification bridge output end connects two diode VD1 in parallel by voltage stabilizing circuit, VD2, and rectification bridge output end cross-over connection piezo-resistance RV5, and accessory power supply is circumscribed with under-voltage locking and overvoltage crowbar.
2. electric bus charger module according to claim 1, is characterized in that, cross-over connection piezo-resistance RV2, RV3, RV4 respectively between every live wire and zero line in described three-phase firewire.
3. electric bus charger module according to claim 1, is characterized in that, described piezo-resistance RV1 is 430-470V.
4. electric bus charger module according to claim 2, is characterized in that, described piezo-resistance RV2, RV3, RV4 are 450-480V.
5. electric bus charger module according to claim 1, is characterized in that, described protective resistance R1, R2 is 1.8-2.2 Ω.
6. electric bus charger module according to claim 1, is characterized in that, described diode VD1, VD2 are 1000V.
7. electric bus charger module according to claim 1, it is characterized in that, described voltage stabilizing circuit comprises resistance R 1, voltage stabilizing didoe VD3 and adjusts pipe VT, resistance R 1 is connected with voltage stabilizing didoe VD3 for current limliting, voltage stabilizing didoe VD3 connects the base stage of adjusting pipe VT, and the emitter of adjusting pipe VT connects rectifier bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253626.9U CN203911564U (en) | 2014-05-16 | 2014-05-16 | An electric bus charging machine module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253626.9U CN203911564U (en) | 2014-05-16 | 2014-05-16 | An electric bus charging machine module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911564U true CN203911564U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420253626.9U Expired - Fee Related CN203911564U (en) | 2014-05-16 | 2014-05-16 | An electric bus charging machine module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022559A (en) * | 2014-05-16 | 2014-09-03 | 国家电网公司 | Electric bus charger module |
| EP4254757A1 (en) * | 2022-04-01 | 2023-10-04 | OMRON Corporation | Controller apparatus and control method for power supply circuit apparatus, and power supply circuit apparatus |
-
2014
- 2014-05-16 CN CN201420253626.9U patent/CN203911564U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022559A (en) * | 2014-05-16 | 2014-09-03 | 国家电网公司 | Electric bus charger module |
| EP4254757A1 (en) * | 2022-04-01 | 2023-10-04 | OMRON Corporation | Controller apparatus and control method for power supply circuit apparatus, and power supply circuit apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |