Double-path power supply input circuit for charging pile and electronic equipment

Abstract

The utility model belongs to the technical field of charging piles, and discloses a double-path power supply input circuit for a charging pile and electronic equipment, and the circuit comprises a first power supply input circuit and a second power supply input circuit. The first power input circuit and the second power input circuit respectively comprise an input module, a switch control module, a charging module and an output module; the input module is used for providing a first voltage signal for the double-path power supply input circuit and sending the first voltage signal to the switch control module; the switch control module sends the received first voltage signal to the charging module, and controls the on and off of a switch according to the received first voltage signal; the charging module is used for converting the received first voltage signal into a second voltage signal and sending the second voltage signal to the output module; and the output module charges the battery of the electric vehicle according to the received second voltage signal. The circuit provided by the utility model effectively improves the utilization rate of each charging module in the charging pile.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging piles, and in particular relates to a dual-path power input circuit and electronic equipment for a charging pile. Background Art

[0002] Most charging piles on the current market mainly use single-line power input. However, the on-site construction environment is complex, and there are two power sources from the box-type substation to the charging pile. When the incoming line switch fails, the charging pile will stop working. The utilization rate of the charging module in the charging pile is low. Charging piles with single-line power input can no longer meet current actual needs.

[0003] In view of this, how to improve the utilization rate of charging modules in charging piles is a technical problem that needs to be solved urgently. Utility Model Content

[0004] In order to solve the technical problem of low utilization rate of the charging module in the above-mentioned charging pile, the utility model provides a dual-path power input circuit and electronic equipment for the charging pile.

[0005] In a first aspect, the present invention provides a dual-power input circuit for a charging pile, the circuit comprising: a first power input circuit and a second power input circuit;

[0006] The first power input circuit and the second power input circuit respectively include an input module, a switch control module, a charging module and an output module;

[0007] The input module is connected to the switch control module, and the input module is used to provide a first voltage signal to the dual power input circuit for the charging pile, and send the first voltage signal to the switch control module;

[0008] The switch control module is connected to the charging module, and is used to send the received first voltage signal to the charging module and control the closing and opening of the switch according to the received first voltage signal;

[0009] The charging module is connected to the output module, and the charging module is used to convert the received first voltage signal into a second voltage signal and send the second voltage signal to the output module;

[0010] The output module is connected to the battery of the electric vehicle, and the output module charges the battery of the electric vehicle according to the received second voltage signal.

[0011] Further, the switch control module includes a first contactor and a second contactor;

[0012] The charging module includes a first power supply unit and a second power supply unit;

[0013] The first contactor is connected to the first power supply unit, and the second contactor is connected to the second power supply unit.

[0014] Furthermore, the switch control module further includes a first circuit breaker and a second circuit breaker, and the input module includes a first input power supply and a second input power supply;

[0015] One end of the first circuit breaker is connected to the first contactor, and the other end of the first circuit breaker is connected to the first input power supply;

[0016] One end of the second circuit breaker is connected to the second contactor, and the other end of the second circuit breaker is connected to the second input power source.

[0017] Furthermore, the first input power source and the second input power source are three-phase AC power sources.

[0018] Furthermore, the first contactor and the second contactor are three-phase AC contactors.

[0019] Furthermore, the first power input circuit further includes a first lightning protection module, and the second power input circuit further includes a second lightning protection module;

[0020] The first lightning protection module includes a third circuit breaker, and the second lightning protection module includes a fourth circuit breaker;

[0021] The third circuit breaker is connected to the first input power source and the first circuit breaker, and the fourth circuit breaker is connected to the second input power source and the second circuit breaker.

[0022] Furthermore, the first lightning protection module includes a first lightning arrester, and the second lightning protection module includes a second lightning arrester;

[0023] The first lightning arrester is connected to the third circuit breaker, and the second lightning arrester is connected to the fourth circuit breaker.

[0024] Furthermore, the first lightning arrester includes a first varistor, one end of the first varistor is connected to the third circuit breaker, and the other end of the first varistor is grounded;

[0025] The second lightning arrester includes a second varistor, one end of the second varistor is connected to the fourth circuit breaker, and the other end of the second varistor is grounded.

[0026] Furthermore, the first varistor and the second varistor are voltage-limiting varistors.

[0027] In a second aspect, the present invention provides an electronic device, comprising a device body and a dual-path power input circuit for a charging pile as described in any one of the first aspects above, which is arranged on the device body.

[0028] Compared with the prior art, the dual power input circuit for the charging pile provided by the present invention effectively improves the utilization rate of each charging module in the charging pile by setting up a dual power input circuit, and is more convenient for installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the framework structure of a single-channel power input circuit provided by an embodiment of the present utility model;

[0030] Figure 2 A schematic structural diagram of a dual-path power input circuit for a charging pile provided in an embodiment of the present utility model. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] In order to make the description of the present disclosure more detailed and complete, the following is an illustrative description of the implementation methods and specific examples of the present invention; however, this is not the only form of implementing or using the specific embodiments of the present invention. The implementation methods cover the features of multiple specific embodiments and the method steps and their sequence for constructing and operating these specific embodiments. However, other specific embodiments can also be used to achieve the same or equal functions and step sequences. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0034] In the description of the embodiments of the present invention, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is merely a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two, and other quantifiers should be understood similarly. The preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In order to solve the technical problem of low utilization rate of charging modules in existing charging piles, the utility model provides a dual-way power input circuit for charging piles, please refer to Figure 1-2 , Figure 1 This is a schematic diagram of the framework structure of a single power input circuit provided by an embodiment of the utility model. Figure 2 A schematic diagram of a dual-power input circuit for a charging pile provided in an embodiment of the present invention includes: a first power input circuit and a second power input circuit; the first power input circuit and the second power input circuit each include an input module, a switch control module, a charging module, and an output module; the input module is connected to the switch control module, the input module is configured to provide a first voltage signal to the dual-power input circuit for the charging pile and transmit the first voltage signal to the switch control module; the switch control module is connected to the charging module, the switch control module is configured to transmit the received first voltage signal to the charging module and control the closing and opening of a switch based on the received first voltage signal; the charging module is connected to the output module, the charging module is configured to convert the received first voltage signal into a second voltage signal and transmit the second voltage signal to the output module; the output module is connected to the battery of an electric vehicle and charges the battery of the electric vehicle based on the received second voltage signal. By providing a dual-power input circuit, with each power input circuit having an independent switch control module and charging module, the present invention effectively improves the utilization rate of the charging module in the charging pile and facilitates installation and maintenance.

[0036] As a further preferred embodiment, the switch control module includes a first contactor KM1 and a second contactor KM2; the charging module includes a first power supply unit DC1 and a second power supply unit DC2; the first contactor KM1 is connected to the first power supply unit DC1, and the second contactor KM2 is connected to the second power supply unit DC2. Specifically, in an embodiment of the present invention, the first contactor KM1 and the second contactor KM2 can disconnect the power supply module when charging is not required, thereby achieving the purpose of energy conservation and consumption reduction.

[0037] As a further preferred embodiment, the switch control module further includes a first circuit breaker QF1 and a second circuit breaker QF2, and the input module includes a first input power supply VCC1 and a second input power supply VCC2; one end of the first circuit breaker QF1 is connected to the first contactor KM1, and the other end of the first circuit breaker QF1 is connected to the first input power supply VCC1; one end of the second circuit breaker QF1 is connected to the second contactor KM2, and the other end of the second circuit breaker QF1 is connected to the second input power supply VCC2. Specifically, in an embodiment of the present invention, the first input power supply VCC1 and the second input power supply VCC2 can provide AC voltage signals to the first contactor KM1 and the second contactor KM2, and the first circuit breaker QF1 can control the on / off of the first input power supply VCC1, and the second circuit breaker QF2 can control the on / off of the first input power supply VCC2.

[0038] As a further preferred embodiment, the first input power source VCC1 and the second input power source VCC2 are three-phase AC power sources. Specifically, in the embodiment of the present invention, the use of three-phase AC power sources can save wires in power transmission and does not exclude the power supply to single-phase loads.

[0039] As a further preferred embodiment, the first contactor KM1 and the second contactor KM2 are three-phase AC contactors. Specifically, in the embodiment of the present invention, three-phase AC contactors can be used to control the switching of the first power input circuit and the second power input circuit.

[0040] Further preferably, the first power input circuit further includes a first lightning protection module, and the second power input circuit further includes a second lightning protection module; the first lightning protection module includes a third circuit breaker QF3, and the second lightning protection module includes a fourth circuit breaker QF4; the third circuit breaker QF3 is connected to the first input power source VCC1 and the first circuit breaker QF1, and the fourth circuit breaker QF4 is connected to the second input power source VCC2 and the second circuit breaker QF2. Specifically, in an embodiment of the present invention, two independent lightning protection modules can be configured on the first power input circuit and the second power input circuit to further protect components and electrical circuits within the cabinet.

[0041] Further preferably, the first lightning protection module includes a first lightning arrester, and the second lightning protection module includes a second lightning arrester; the first lightning arrester is connected to the third circuit breaker QF3, and the second lightning arrester is connected to the fourth circuit breaker QF4. Specifically, in the embodiment of the present invention, when the lightning arrester needs to be replaced, it is not necessary to disconnect the main switch; only the third circuit breaker QF3 and the fourth circuit breaker QF4 need to be disconnected.

[0042] As a further preferred embodiment, the first lightning arrester includes a first varistor R1, one end of the first varistor R1 is connected to the third circuit breaker QF3, and the other end of the first varistor R1 is grounded; the second lightning arrester includes a second varistor R2, one end of the second varistor R2 is connected to the fourth circuit breaker QF4, and the other end of the second varistor R2 is grounded.

[0043] As a further preferred embodiment, the first varistor R1 and the second varistor R2 are voltage-limiting varistors. In the embodiment of the present invention, voltage-limiting varistors are used, which have the advantages of small size, wide voltage range, fast response to overvoltage pulses, strong surge current resistance, low leakage current, and low resistance temperature coefficient.

[0044] Based on the above-mentioned dual-power input circuit for a charging pile, an embodiment of the present application further provides an electronic device, which includes a device body and the above-mentioned dual-power input circuit for a charging pile arranged in the device body.

[0045] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above embodiments merely represent preferred implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A dual-power input circuit for a charging pile, characterized in that: include: a first power input circuit and a second power input circuit; The first power input circuit and the second power input circuit respectively include an input module, a switch control module, a charging module and an output module; The input module is connected to the switch control module, and the input module is used to provide a first voltage signal to the dual power input circuit for the charging pile, and send the first voltage signal to the switch control module; The switch control module is connected to the charging module, and is used to send the received first voltage signal to the charging module and control the closing and opening of the switch according to the received first voltage signal; The charging module is connected to the output module, and the charging module is used to convert the received first voltage signal into a second voltage signal and send the second voltage signal to the output module; The output module is connected to the battery of the electric vehicle, and the output module charges the battery of the electric vehicle according to the received second voltage signal.

2. The dual-power input circuit for a charging pile according to claim 1, characterized in that: The switch control module includes a first contactor and a second contactor; The charging module includes a first power supply unit and a second power supply unit; The first contactor is connected to the first power supply unit, and the second contactor is connected to the second power supply unit.

3. The dual-power input circuit for a charging pile according to claim 2, characterized in that: The switch control module further includes a first circuit breaker and a second circuit breaker, and the input module includes a first input power supply and a second input power supply; One end of the first circuit breaker is connected to the first contactor, and the other end of the first circuit breaker is connected to the first input power supply; One end of the second circuit breaker is connected to the second contactor, and the other end of the second circuit breaker is connected to the second input power source.

4. The dual-power input circuit for a charging pile according to claim 3, characterized in that: The first input power source and the second input power source are three-phase AC power sources.

5. The dual-power input circuit for a charging pile according to claim 4, characterized in that: The first contactor and the second contactor are three-phase AC contactors.

6. The dual-power input circuit for a charging pile according to claim 5, characterized in that: The first power input circuit further includes a first lightning protection module, and the second power input circuit further includes a second lightning protection module; The first lightning protection module includes a third circuit breaker, and the second lightning protection module includes a fourth circuit breaker; The third circuit breaker is connected to the first input power source and the first circuit breaker, and the fourth circuit breaker is connected to the second input power source and the second circuit breaker.

7. The dual-power input circuit for a charging pile according to claim 6, characterized in that: The first lightning protection module includes a first lightning arrester, and the second lightning protection module includes a second lightning arrester; The first lightning arrester is connected to the third circuit breaker, and the second lightning arrester is connected to the fourth circuit breaker.

8. The dual-power input circuit for a charging pile according to claim 7, characterized in that: The first lightning arrester includes a first varistor, one end of the first varistor is connected to the third circuit breaker, and the other end of the first varistor is grounded; The second lightning arrester includes a second varistor, one end of the second varistor is connected to the fourth circuit breaker, and the other end of the second varistor is grounded.

9. The dual-power input circuit for a charging pile according to claim 8, characterized in that: The first varistor and the second varistor are voltage-limiting varistors.

10. An electronic device, characterized in that: It comprises a device body and a dual-path power input circuit for a charging pile as described in any one of claims 1 to 9 above, which is arranged on the device body.

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