CN221162338U - DC-DC charging pile - Google Patents
DC-DC charging pile Download PDFInfo
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- CN221162338U CN221162338U CN202323579847.3U CN202323579847U CN221162338U CN 221162338 U CN221162338 U CN 221162338U CN 202323579847 U CN202323579847 U CN 202323579847U CN 221162338 U CN221162338 U CN 221162338U
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- 230000001012 protector Effects 0.000 claims description 34
- 230000000694 effects Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to the field of new energy automobile charging piles, in particular to a DC-DC charging pile, which comprises a DC input end DC Power for providing DC input; the input end of the direct current Power supply module AU is electrically connected to the direct current input end DC Power, and is used for converting Power supply and outputting for charging; the direct-current plastic shell breaker QF is electrically connected between the direct-current input end DC Power and the input end of the direct-current Power supply module AU and used for controlling the on-off of a direct-current circuit; and the protection module is used for carrying out surge protection, overload protection, short-circuit protection and intelligent on-off control on the direct current circuit. The application has the effects of simplifying the electrical architecture and reducing the fault points.
Description
Technical Field
The application relates to the field of new energy automobile charging piles, in particular to a DC-DC (direct current-direct current) charging pile.
Background
Along with the development of new energy automobiles, charging piles for charging the new energy automobiles are paved, but the existing direct current charging piles cannot be directly used in photovoltaic, energy storage systems and direct current power grids, and the direct current to direct current devices are required to convert the power sources, so that the cost is high, the fault points are multiple, and the loss is multiple.
Disclosure of utility model
The application provides a DC-DC charging pile for solving the problems of high cost, multiple fault points and multiple loss of the existing DC charging pile.
The application provides a DC-DC charging pile, which adopts the following technical scheme:
A DC-DC direct current charging pile comprising:
A direct current input terminal DC Power for providing direct current input;
The input end of the direct current Power supply module AU is electrically connected to the direct current input end DC Power, and is used for converting Power supply and outputting for charging;
The direct-current plastic shell breaker QF is electrically connected between the direct-current input end DC Power and the input end of the direct-current Power supply module AU and used for controlling the on-off of a direct-current circuit;
And the protection module is used for carrying out surge protection, overload protection, short-circuit protection and intelligent on-off control on the direct current circuit.
By adopting the technical scheme, the direct-current plastic shell breaker QF and the protection module can directly use the power supply from the photovoltaic power system, the energy storage system and the direct-current power grid, simplify the electric framework, reduce the fault points, reduce the direct-current alternating-current conversion steps, reduce the cost and reduce the energy consumption.
Optionally, the number of the direct current power supply modules AU is plural, and the plural direct current power supply modules AU are connected in parallel to the output end of the direct current plastic casing breaker QF.
By adopting the technical scheme, the quantity of power supplied to the automobile by output is increased, and the utilization rate is improved.
Optionally, the protection module includes a switch mode power supply UP1, the switch mode power supply UP1 is electrically connected to the output end of the direct current plastic casing breaker QF, and the switch mode power supply UP1 is used for converting power and outputting to power consumption equipment.
By adopting the technical scheme, the power supply is provided for the charging controller, the cooling fan, the screen, the card swiping device and other components through the switch mode power supply UP 1.
Optionally, the protection module includes a dc leakage protection circuit breaker QF2, the dc leakage protection circuit breaker QF2 is electrically connected between the switch mode power supply UP1 and an output end of the dc plastic casing circuit breaker QF, and the dc leakage protection circuit breaker QF2 is used for performing leakage protection on the switch mode power supply UP 1.
Through adopting above-mentioned technical scheme, direct current earth leakage protection circuit breaker QF2 is used for switching on, disconnection and protection return circuit, has the earth leakage detection function simultaneously, increases the security, plays the guard action to the circuit.
Optionally, the input end of the direct current leakage protection breaker QF2 is connected in parallel with the output end of the direct current plastic shell breaker QF.
By adopting the technical scheme, the direct-current plastic shell breaker QF can be controlled to be switched on and off along with the on-off of the direct-current plastic shell breaker QF more quickly, and the protection effect is better achieved.
Optionally, the protection module includes a DC surge protector SPD and a breaker QF1, where the DC surge protector SPD is electrically connected to the DC input terminal DC Power, and the breaker QF1 is electrically connected between the DC surge protector SPD and the DC input terminal DC Power, and the DC surge protector SPD is used for performing surge protection on a DC loop.
Through adopting above-mentioned technical scheme, direct current surge protector SPD is used for protecting whole stake thunderbolt and excessive voltage in the twinkling of an eye, plays the guard action, improves stability, also improves circuit security, reduces components and parts or consumer even the automobile in charging and receives the probability that the thunderbolt damaged.
Optionally, the DC surge protector SPD is connected in parallel between the DC input terminal DC Power and the input terminal of the DC plastic case breaker QF.
Through adopting above-mentioned technical scheme for direct current surge protector SPD can trigger surge fast, makes the first time trigger, protects subsequent components and parts and consumer, reduces the surge and has reached components and parts, causes the damage after, and direct current surge protector SPD just triggers the probability of protection, further plays the guard action.
Optionally, the protection module includes a current protector 1FU, the current protector 1FU is electrically connected to the positive terminal of the direct current plastic casing breaker QF, and the current protector 1FU is used for overload protection and short-circuit protection of direct current.
By adopting the technical scheme, the current protector 1FU is used for protecting overload and short circuit of the main circuit, and plays a role in protection.
Optionally, the protection module includes a dc contactor K7, an input end of the dc contactor K7 is electrically connected to an output end of the current protector 1FU, and the dc power module AU is connected in parallel to an output end of the dc contactor K7, where the dc contactor K7 is used for a user to perform intelligent control.
Through adopting above-mentioned technical scheme, through direct current contactor K7 by charge controller control, realize the switch-on and the disconnection of intelligent control circuit, further improve the security of circuit, can realize user's long-range on-off control.
Optionally, the protection module includes a dc contactor K8, where the dc contactor K8 is electrically connected to the negative terminal of the dc plastic casing breaker QF, and the dc power module AU is connected in parallel to the output terminal of the dc contactor K8, and the dc contactor K8 is used for intelligent control by a user.
Through adopting above-mentioned technical scheme, through direct current contactor K7 by charge controller control, realize the switch-on and the disconnection of intelligent control circuit, further improve the security of circuit, can realize user's long-range on-off control.
In summary, the present application includes at least one of the following beneficial technical effects:
1. Simplifying the electrical architecture.
2. The fault points are reduced, the direct current-alternating current conversion steps are reduced, the cost is reduced, and the energy consumption is reduced.
Drawings
Fig. 1 is a schematic circuit diagram of a DC-DC charging pile according to an embodiment of the present application.
Reference numerals illustrate: 1. and protecting the module.
Detailed Description
The present application will be described in further detail with reference to fig. 1.
The embodiment of the application discloses a DC-DC charging pile. Referring to fig. 1, the DC-DC charging pile includes a DC input DC Power, a DC Power module AU, a DC plastic case breaker QF, and a protection module 1, the protection module 1 includes a switch mode Power UP1, a DC leakage protection breaker QF2, a DC surge protector SPD, a breaker QF1, a current protector 1FU, a DC contactor K7, and a DC contactor K8. In this embodiment, the number of the dc power supply modules AU is eight, and the dc power supply modules AU1, AU2, AU3, AU4, AU5, AU6, AU7, and AU8 are respectively.
Referring to fig. 1, in the present embodiment, the DC input DC Power includes an l+ end, an L-end and a PE end, and is used for providing DC input, in the present embodiment, the rated DC input is 750cV dc, the input voltage range is 600V dc～825Vdc, and most DC Power systems are adapted. The L+ end and the L-end of the DC input end DC Power are electrically connected to the input end of the DC plastic shell breaker QF, and the on-off of the DC plastic shell breaker QF is used for controlling the on-off of a subsequent DC circuit.
Referring to fig. 1, an input terminal of a circuit breaker QF1 is connected in parallel to an l+ terminal and an L-terminal of a DC input terminal DC Power, an output terminal of the circuit breaker QF1 is electrically connected to an input terminal of a DC surge protector SPD, and an output terminal of the DC surge protector SPD is electrically connected to a PE terminal of the DC input terminal DC Power. The direct current surge protector SPD is used for protecting the lightning stroke and the instant overvoltage of the whole pile. The ground terminal of the dc surge protector SPD and the dc power supply module AU is connected to the ground through the housing.
Referring to fig. 1, the input end of the current protector 1FU is electrically connected to the positive end of the dc plastic casing breaker QF, the output end of the current protector 1FU is electrically connected to the input end of the dc contactor K7, one ends of the eight dc power modules AU are all connected in parallel to the output end of the dc contactor K7, the other ends of the eight dc power modules AU are all connected in parallel to the output end of the dc contactor K8, and the input end of the dc contactor K8 is electrically connected to the negative end of the dc plastic casing breaker QF. The current protector 1FU is used for overload protection and short-circuit protection of the direct current circuit, and the direct current contactor K7 and the direct current contactor K8 are controlled by the charging controller and used for intelligently controlling the on-off of the direct current circuit. In this embodiment, the output ends of the dc contactor K7 and the dc contactor K8 are electrically connected with a dc copper bar, and the input ends of the eight dc power modules AU are connected in parallel to the dc copper bar to obtain electric energy, and the dc power modules AU receive dc input, perform power conversion, and then output to a new energy automobile for charging.
Referring to fig. 1, the positive and negative terminals of a dc plastic casing breaker QF are both output terminals of the dc plastic casing breaker QF, the input terminal of the dc leakage protection breaker QF2 is connected in parallel to the output terminal of the dc plastic casing breaker QF, the output terminal of the dc leakage protection breaker QF2 is electrically connected to a switch mode power supply UP1, and the switch mode power supply UP1 is used for supplying power to electric equipment such as a charge controller, a radiator fan, a screen, a card swiping device, and the like. In this embodiment, two input terminals of the dc leakage protection circuit breaker QF2 are provided, one input terminal of the dc leakage protection circuit breaker QF2 is connected in parallel between the positive terminal of the dc plastic housing circuit breaker QF and the input terminal of the current protector 1FU, and the other input terminal of the dc leakage protection circuit breaker QF2 is connected in parallel between the negative terminal of the dc plastic housing circuit breaker QF and the input terminal of the dc contactor K8. The direct current leakage protection breaker QF2 is used for switching on, switching off and protecting a loop, and has a leakage detection function at the same time, so that leakage protection is realized. And the switch mode power supply UP1 takes a 750V dc input, the ground terminal of the switch mode power supply UP1 is connected to the ground through the housing. In the present embodiment, the direct current input DC Power to the direct current contactor K7 and the direct current contactor K8 are part of the main circuit.
The implementation principle of the DC-DC charging pile provided by the embodiment of the application is as follows: the direct current Power is directly connected to a Power supply from a photovoltaic Power system, an energy storage system and a direct current Power grid through a direct current input end DC Power, the direct current plastic shell breaker QF is used as the total on-off control of an incoming line, the direct current contactor K7, the direct current contactor K8 and the current protector 1FU are used as circuit protection and intelligent control, and the direct current surge protector SPD and the breaker QF1 are used as lightning arresters to conduct lightning stroke and surge protection, so that direct current Power supply to the switch mode Power supply UP1 and the direct current Power supply module AU is achieved.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. A DC-DC direct current charging pile, comprising:
A direct current input terminal DC Power for providing direct current input;
The input end of the direct current Power supply module AU is electrically connected to the direct current input end DC Power, and is used for converting Power supply and outputting for charging;
The direct-current plastic shell breaker QF is electrically connected between the direct-current input end DC Power and the input end of the direct-current Power supply module AU and used for controlling the on-off of a direct-current circuit;
And the protection module (1) is used for carrying out surge protection, overload protection, short-circuit protection and intelligent on-off control on the direct current circuit.
2. A DC-DC direct current charging pile according to claim 1, characterized in that: the number of the direct current power supply modules AU is multiple, and the multiple direct current power supply modules AU are connected in parallel to the output end of the direct current plastic shell breaker QF.
3. A DC-DC direct current charging pile according to claim 1, characterized in that: the protection module (1) comprises a switch mode power supply UP1, wherein the switch mode power supply UP1 is electrically connected to the output end of the direct current plastic shell breaker QF, and the switch mode power supply UP1 is used for converting power and outputting the converted power to power for electric equipment.
4. A DC-DC charging pile according to claim 3, characterised in that: the protection module (1) comprises a direct current leakage protection breaker QF2, wherein the direct current leakage protection breaker QF2 is electrically connected between the switch mode power supply UP1 and the output end of the direct current plastic shell breaker QF, and the direct current leakage protection breaker QF2 is used for performing leakage protection on the switch mode power supply UP 1.
5. A DC-DC charging pile according to claim 4, wherein: the input end of the direct current leakage protection breaker QF2 is connected in parallel with the output end of the direct current plastic shell breaker QF.
6. A DC-DC direct current charging pile according to claim 1, characterized in that: the protection module (1) comprises a direct current surge protector SPD and a breaker QF1, wherein the direct current surge protector SPD is electrically connected to the direct current input end DC Power, the breaker QF1 is electrically connected between the direct current surge protector SPD and the direct current input end DC Power, and the direct current surge protector SPD is used for carrying out surge protection on a direct current loop.
7. A DC-DC charging pile according to claim 6, wherein: the direct current surge protector SPD is connected in parallel between the direct current input end DC Power and the input end of the direct current plastic shell breaker QF.
8. A DC-DC direct current charging pile according to claim 1, characterized in that: the protection module (1) comprises a current protector 1FU, wherein the current protector 1FU is electrically connected to the positive electrode end of the direct current plastic shell breaker QF, and the current protector 1FU is used for carrying out overload protection and short-circuit protection on direct current.
9. A DC-DC charging pile according to claim 8, characterised in that: the protection module (1) comprises a direct current contactor K7, wherein the input end of the direct current contactor K7 is electrically connected to the output end of the current protector 1FU, the direct current power supply module AU is connected to the output end of the direct current contactor K7 in parallel, and the direct current contactor K7 is used for intelligent control of a user.
10. A DC-DC direct current charging pile according to claim 1, characterized in that: the protection module (1) comprises a direct current contactor K8, wherein the direct current contactor K8 is electrically connected to the negative electrode end of the direct current plastic shell breaker QF, the direct current power supply module AU is connected to the output end of the direct current contactor K8 in parallel, and the direct current contactor K8 is used for intelligent control of a user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323579847.3U CN221162338U (en) | 2023-12-26 | 2023-12-26 | DC-DC charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323579847.3U CN221162338U (en) | 2023-12-26 | 2023-12-26 | DC-DC charging pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221162338U true CN221162338U (en) | 2024-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323579847.3U Active CN221162338U (en) | 2023-12-26 | 2023-12-26 | DC-DC charging pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221162338U (en) |
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2023
- 2023-12-26 CN CN202323579847.3U patent/CN221162338U/en active Active
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