Testing equipment for carrying out centralized aging on charging piles

Abstract

The utility model relates to the technical field of aging equipment, in particular to test equipment for carrying out centralized aging on charging piles, which comprises a power distribution system, a control system, an aging system, a load system and an inverter system, the output end of the aging system is connected to the input end of the charging pile, the output end of the charging pile is connected to the input end of the load system, the output end of the load system is connected to the input end of the inverter system, and the output end of the inverter system is connected to the power distribution system, so that the output power of the inverter system is newly connected to an external power grid. In conclusion, a plurality of charging piles of various specifications and models can be subjected to centralized aging test at the same time, the load module and the inversion module can be utilized to recycle and convert electric energy output in the aging test process of the charging piles, the power consumption of the whole test equipment is reduced, the input cost of the test equipment is reduced, and the test efficiency is improved. And the aging test benefit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aging equipment, in particular to a test device for centralized aging of charging piles. Background Art

[0002] The aging of power supply devices is an effective means to inspect product quality and eliminate early failures of products. At present, the vast majority of power converter manufacturers adopt energy-consuming aging methods. That is, according to the output characteristics of the power converter, a suitable resistive load (such as a cement resistor) is configured, and the aging test of the product is carried out under certain ambient temperature and required electrical index conditions. This method has the characteristics of simplicity and reliability. However, the energy-consuming aging method has great disadvantages: Aging itself consumes a large amount of electric energy, and a huge amount of electricity bills need to be paid; a large amount of heat generated by aging needs to be dissipated, which increases the heat dissipation cost, increases the noise and additional energy consumption; at the same time, the wiring of the enterprise and the capacity of the distribution transformer need to be increased, greatly increasing the distribution cost.

[0003] With the increasing demand for charging piles in the market, related public charging pile stations and private charging piles for personal use have developed and been applied rapidly. In order to ensure the quality of the produced charging piles, charging pile manufacturers need to conduct aging tests on each charging pile.

[0004] The existing aging test methods mainly include two schemes. Scheme one: One load corresponds to each charging pile, and aging is carried out one by one. However, this aging method occupies a large space. When the number of charging piles is large, the number of loads increases accordingly, and it wastes electricity, which is uneconomical and energy-consuming. Scheme two: Multiple charging piles are connected in parallel to a large load, and the aging purpose is achieved by adjusting the load power to match the number of charging piles. Although this method can save some space, it wastes electric energy and has high energy consumption.

[0005] Therefore, when the number of charging piles is large, how to conduct centralized aging tests on charging piles is an urgent problem to be solved. Content of the Utility Model

[0006] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above deficiencies.

[0007] The utility model provides a test device for centralized aging of charging piles, which includes a power distribution system, a control system, an aging system, a load system and an inverter system. The power distribution system is used to access the power of the external power grid and supply it to the control system and the aging system. The control system and the aging system are electrically connected to each other, and a preset aging control program is used to control the operation of the aging system. The output end of the aging system is connected to the input end of the charging pile to provide the power required for the aging operation test of the charging pile. The output end of the charging pile is connected to the input end of the load system to provide the power required for the load operation of the load system. The output end of the load system is connected to the input end of the inverter system to provide the power required for the inverter operation of the inverter system. The output end of the inverter system is connected to the power distribution system, so that the output power of the inverter system is re-incorporated into the external power grid.

[0008] As a further scheme of the utility model: the aging system is provided with multiple groups of aging modules. Each aging module is provided with an output port and an input port. The output port can be inserted into the input plug of the charging pile and provide operating power for the input plug of the charging pile. The output port can be inserted into the output plug of the charging pile to transfer the output power of the charging pile to the load system.

[0009] As a further scheme of the utility model: the output port is provided with a large-current test clip plug, a US standard three-pin socket, a European standard four-pin socket, a national standard three-pin socket, a national standard aviation socket and a national standard coupler socket, so as to be able to insert the input plugs of charging piles with corresponding specifications.

[0010] As a further scheme of the utility model: the input port is provided with a US standard charging gun female seat, a European standard charging gun female seat and a national standard charging gun female seat, so as to be able to insert the output plugs of charging piles with corresponding specifications.

[0011] As a further scheme of the utility model: each aging module is further provided with two groups of AC contactors. The two groups of AC contactors can respectively control the on-off of the output port and the input port. The control system is provided with a management module, and the management module is electrically connected to the AC contactors to control the closing or opening of the AC contactors.

[0012] As a further scheme of the utility model: the aging module is provided with a three-phase module, and the three-phase module can access the three-phase power of the external power grid to conduct aging tests on three-phase charging piles.

[0013] As a further scheme of the utility model: the aging module is provided with a single-phase module, and the single-phase module can access the single-phase power of the external power grid to conduct aging tests on single-phase charging piles.

[0014] As a further solution of the present utility model: the load system is provided with a plurality of load modules, and the load modules can adopt AC energy-saving electronic load modules.

[0015] As a further solution of the present utility model: the inverter system is provided with a plurality of inverter modules, and the inverter modules can adopt three-phase grid-connected inverters.

[0016] As a further solution of the present utility model, it is characterized in that it further includes a rack, the bottom of the rack is provided with an assembly box body, and the assembly box body is used for installing a power distribution system, a control system, a load system and an inverter system; the upper part of the assembly box body is provided with an aging bracket perpendicular to the assembly box body, and a plurality of groups of aging modules are installed in the aging bracket; the outer side of the top wall of the assembly box body is provided with a first aging test board, and the middle part of the aging bracket is provided with a second aging test board. The first aging test board and the second aging test board respectively cooperate with a plurality of groups of aging modules to perform aging tests on a plurality of charging piles respectively.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. By adopting energy-saving AC electronic load modules, the alternating current output by the charging pile can be converted into direct current, and then the direct current output by the load module is converted by an energy recovery type three-phase grid-connected inverter, so as to be converted into 380V alternating current and re-connected to the power grid, thereby reducing power loss and improving the aging efficiency of the aging test equipment.

[0019] 2. Multiple groups of aging modules can also be set to perform centralized aging tests on multiple charging piles, and the alternating current output by multiple charging piles is uniformly transported to the load module for corresponding DC conversion, and then uniformly transported to the inverter module for corresponding AC conversion, thereby improving the utilization rate of the load module and the inverter module and reducing the investment cost of the test equipment.

[0020] 3. A variety of specifications of sockets are also set at the output ports of the aging modules, so that charging piles of various specifications can be plugged in. At the same time, a variety of specifications of female charging gun sockets are also set at the input ports, so that charging guns of various specifications can be plugged in accordingly. Furthermore, through one test equipment, aging tests can be performed on charging piles of various models and specifications, reducing equipment investment and improving test efficiency.

[0021] Therefore, through the above improvements, the present utility model can provide a test device for centralized aging of charging piles, enabling centralized aging tests on multiple charging piles of various specifications and models simultaneously. Moreover, the load module and the inverter module can be used to recover and convert the electric energy output during the aging test of the charging piles, reducing the power consumption of the entire test device, decreasing the investment cost of the test device, and enhancing its aging test efficiency.

[0022] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 is the overall structural schematic diagram of the test device of the present utility model;

[0025] Figure 2 is the structural schematic diagram of the output port and the input port of the present utility model;

[0026] Figure 3 is the structural schematic diagram of the aging module of the present utility model;

[0027] Figure 4 is the structural schematic diagram of the load module and the inverter module of the present utility model;

[0028] Figure 5 is the circuit schematic diagram of the three-phase module of the present utility model;

[0029] Figure 6 is the circuit schematic diagram of the load wiring of the present utility model;

[0030] Figure 7 is the circuit schematic diagram of the three-phase module and the single-phase module of the present utility model.

[0031] The reference numerals and names in the drawings are as follows:

[0032] 10 racks; 11 assembly box; 12 aging bracket; 13 first aging test board; 14 second aging test board; 15 power distribution system; 16 control system; 17 management module; 20 aging system; 21 aging module; 22 three-phase module; 23 single-phase module; 24 AC contactor; 25 wire trough; 26 wire splitter; 30 output port; 31 large current test clip plug; 32 US standard triangular socket; 33 European standard four-corner socket; 34 national standard triangular socket; 35 national standard aviation socket; 36 national standard coupler socket; 40 input port; 41 US standard charging gun female socket; 42 European standard charging gun female socket; 43 national standard charging gun female socket; 50 load system; 51 load module; 52 inverter system; 53 inverter module; 60 charging pile. Detailed implementation manner

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 to 7 , in the embodiment of the present invention, a test device for centralized aging of the charging pile 60 includes a power distribution system 15, a control system 16, an aging system 20, a load system 50 and an inverter system 52. The power distribution system 15 is used to access the power of the external power grid and provide it for the control system 16 and the aging system 20 to use. The control system 16 and the aging system 20 are electrically connected to each other and control the operation of the aging system 20 by using a preset aging control program. The output end of the aging system 20 is connected to the input end of the charging pile 60 to provide the power required for the aging operation test of the charging pile 60. The output end of the charging pile 60 is connected to the input end of the load system 50 to provide the power required for the load operation of the load system 50. The output end of the load system 50 is connected to the input end of the inverter system 52 to provide the power required for the inverter operation of the inverter system 52. The output end of the inverter system 52 is connected to the power distribution system 15, so that the output power of the inverter system 52 is re-incorporated into the external power grid.

[0035] Specifically, a corresponding rack 10 can also be set. The bottom of the rack 10 is provided with an assembly box 11, and the assembly box 11 is used to install the power distribution system 15, the control system 16, the load system 50 and the inverter system 52. The upper part of the assembly box 11 is provided with an aging bracket 12 perpendicular to the assembly box 11. Preferably, it is in the middle position of the upper part of the assembly box 11, so that the two sides of the aging bracket 12 respectively form areas for aging test boards.

[0036] Secondly, multiple aging modules 21 are installed in the aging bracket 12, so that aging tests can be performed on multiple charging piles 60 simultaneously. A first aging test board 13 is provided on the outer side of the top wall of the assembly box body 11, and a second aging test board 14 is provided in the middle of the aging bracket 12. Preferably, the second aging test board 14 is parallel to the first aging test board 13. Moreover, it can be understood that the first aging test board 13 and the second aging test board 14 can be respectively arranged on both sides of the aging bracket 12, so as to make the most of the space above the assembly box body 11 and form aging modules 21 for performing aging tests on multiple charging piles 60 simultaneously.

[0037] Thirdly, preferably, the first aging test board 13 and the second aging test board 14 respectively cooperate with multiple aging modules 21 to perform aging tests on multiple charging piles 60 respectively. The aging modules 21 corresponding to the first aging test board 13 and the second aging test board 14 can be set as three-phase modules 22 simultaneously, or can be respectively set as a three-phase module 22 and a single-phase module 23. Or on both sides of the aging bracket 12, one side can also be set as a three-phase module 22 and the other side can be set as a single-phase module 23. In this way, the aging test areas of three-phase charging piles 60 and single-phase charging piles 60 can be separated, which is convenient for workers to plug and unplug different charging piles 60 and prevents confusion.

[0038] In addition, for the power distribution system 15, the control system 16, the load system 50 and the inverter system 52, they can be uniformly installed in the same location for convenient management and maintenance. The power distribution system 15 can also be provided with a main grid switch and corresponding wiring terminals to form the entire power distribution system 15. The control system 16 can also be provided with corresponding devices such as a control host, a control display, a control keyboard and a mouse to manage and control the entire test equipment.

[0039] As Figure 1 and Figure 2 shown, preferably, the aging system 20 is provided with multiple aging modules 21. The aging module 21 is provided with an output port 30 and an input port 40. The output port 30 can be inserted into the input plug of the charging pile 60 and provide operating power for the input plug of the charging pile 60. The output port 30 can be inserted into the output plug of the charging pile 60 to transfer the output power of the charging pile 60 to the load system 50.

[0040] Specifically, to simplify the installation process of the charging pile 60 by workers, it is preferred to set the output port 30 and the input port 40 in the same area, that is, to set the input port 40 and the output port 30 in the same aging module group 21. Moreover, it is preferred that the input port 40 is set at the upper part of the aging module 21, and the output port 30 is set at the lower part of the aging module 21. Since the main body of the charging pile 60 is relatively large and needs to be placed on the corresponding aging test board, the output port 30 is set at the lower part of the aging module 21 to make it close to the aging test board, which is convenient for the overall placement of the charging pile 60. And the output plug of the charging pile 60 is relatively small and has a certain flexibility, and can be bent. Therefore, the input port 40 can be set at the upper part, so that after the output plug is bent upward to a certain extent, it can be inserted into the female socket of the corresponding input port 40.

[0041] As Figure 2 shown, preferably, the output port 30 is provided with a large current test clip plug 31, a US standard triangular socket 32, a European standard four-corner socket 33, a national standard triangular socket 34, a national standard aviation socket 35 and a national standard coupler socket 36, so as to insert the input plugs of the charging piles 60 with corresponding specifications. The input port 40 is provided with a US standard charging gun female socket 41, a European standard charging gun female socket 42 and a national standard charging gun female socket 43, so as to insert the output plugs of the charging piles 60 with corresponding specifications.

[0042] Specifically, a variety of specifications of sockets are also set at the output port 30 of the aging module 21, so that it can be plugged into charging piles 60 of a variety of specifications. At the same time, a variety of specifications of charging gun female sockets are also set at the input port 40, so that it can be plugged into charging guns of a variety of specifications accordingly. Furthermore, through one test device, aging tests can be carried out on charging piles 60 of a variety of models and specifications, reducing equipment investment and improving test efficiency.

[0043] As Figure 3 shown, preferably, the aging module 21 is also provided with two groups of AC contactors 24, and the two groups of AC contactors 24 can respectively control the on-off of the output port 30 and the input port 40; the control system 16 is provided with a management module 17, and the management module 17 is electrically connected to the AC contactor 24, so as to control the closing or opening of the AC contactor 24.

[0044] Specifically, the AC contactor 24 can be an existing product. The AC contactor 24 is an automatic switching electrical appliance for connecting or disconnecting the main circuit of a motor or load. It is an electrical appliance that uses electromagnetic force to close or open the switch. It is suitable for frequent operation, remote control of high-voltage circuits, and has the protection performance of low-voltage release. In addition, for the DC output type charging pile 60, a DC contactor can also be used for corresponding on-off control, which will not be elaborated here. Correspondingly, the output power of the DC output type charging pile 60 can be directly connected to the inverter module 53 for corresponding inverter recovery processing without passing through the conversion of the load module 51.

[0045] Secondly, the management module 17 can use data transmission cables to transmit corresponding control management signals. For example, network cables can be used to electrically connect the management module 17 and the control host in the control system 16 respectively, so that the control host can perform corresponding control operations on the management module 17. Or the management module 17 can also be provided with corresponding monitoring units and feedback the corresponding monitoring parameters to the control components through network cables, such as temperature monitoring units, current and voltage monitoring units, etc. In addition, each aging module 21 can also be provided with a matching buried wire groove 25 and a wire splitter 26 to install the corresponding power distribution cable, so that the power of the power distribution system 15 can be smoothly transmitted to the AC contactor 24.

[0046] As Figures 5 to 7 shown, preferably, the aging module 21 is provided with a three-phase module 22, and the three-phase module 22 can access the three-phase power of the external power grid to perform aging tests on the three-phase charging pile 60. The aging module 21 is provided with a single-phase module 23, and the single-phase module 23 can access the single-phase power of the external power grid to perform aging tests on the single-phase charging pile 60.

[0047] Specifically, since some fast charging piles 60 use three-phase power for access, while some household charging piles 60 use single-phase power for access, different three-phase modules 22 and single-phase modules 23 can be set respectively to perform aging tests on different charging piles 60. The specific circuit connection relationship can refer to Figure 7 shown.

[0048] As Figure 4 shown, preferably, the load system 50 is provided with a plurality of load modules 51, and the load modules 51 can use AC energy-saving electronic load modules. The inverter system 52 is provided with a plurality of inverter modules 53, and the inverter modules 53 can use three-phase grid-connected inverters.

[0049] Specifically, the load module 51 and the inverter module 53 can be set according to the number of aging modules 21 set in this test device, so as to meet the requirements of this test device for synchronous aging tests of multiple charging piles 60. For example, the load module 51 can adopt an energy-saving AC electronic load module 51 in existing products, with the model number (JN6258), and the inverter module 53 can adopt a 13.5KW energy recovery type three-phase grid-connected inverter in existing products, with the model number (JN9000A).

[0050] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model.

Claims

1. A test device for centralized aging of charging piles, characterized in that It includes a power distribution system (15), a control system (16), an aging system (20), a load system (50) and an inverter system (52). The power distribution system (15) is used to access the power of the external power grid and supply it to the control system (16) and the aging system (20) for use. The control system (16) and the aging system (20) are electrically connected to each other, and a preset aging control program is used to control the operation of the aging system (20). The output end of the aging system (20) is connected to the input end of the charging pile (60) to provide the power required for the aging operation test of the charging pile (60). The output end of the charging pile (60) is connected to the input end of the load system (50) to provide the power required for the load operation of the load system (50). The output end of the load system (50) is connected to the input end of the inverter system (52) to provide the power required for the inverter operation of the inverter system (52). The output end of the inverter system (52) is connected to the power distribution system (15) so that the output power of the inverter system (52) is re-incorporated into the external power grid.

2. The test device for centralized aging of charging piles according to claim 1, wherein, The aging system (20) is provided with multiple aging modules (21). The aging module (21) is provided with an output port (30) and an input port (40). The output port (30) can be inserted into the input plug of the charging pile (60) and provide operating power for the input plug of the charging pile (60). The output port (30) can be inserted into the output plug of the charging pile (60) to transfer the output power of the charging pile (60) to the load system (50).

3. The testing device for centralized aging of charging piles according to claim 2, wherein, The output port (30) is provided with a large current test clip plug (31), a US standard triangular socket (32), a European standard four-corner socket (33), a national standard triangular socket (34), a national standard aviation socket (35) and a national standard coupler socket (36), so that it can be inserted into the input plug of the charging pile (60) with the corresponding specification.

4. The testing device for centralized aging of charging piles according to claim 2, characterized in that, The input port (40) is provided with a US standard charging gun female socket (41), a European standard charging gun female socket (42) and a national standard charging gun female socket (43), so that it can be inserted into the output plug of the charging pile (60) with the corresponding specification.

5. The testing equipment for centralized aging of charging piles according to claim 2, characterized in that, The aging module (21) is also provided with two groups of AC contactors (24). The two groups of AC contactors (24) can respectively control the on and off of the output port (30) and the input port (40). The control system (16) is provided with a management module (17). The management module (17) is electrically connected to the AC contactor (24) to control the closing or opening of the AC contactor (24).

6. The test equipment for centralized aging of charging piles according to claim 2, wherein, The aging module (21) is provided with a three-phase module (22). The three-phase module (22) can access the three-phase power of the external power grid to conduct an aging test on the three-phase charging pile (60).

7. The testing device for centralized aging of charging piles according to claim 2, characterized in that, The aging module (21) is provided with a single-phase module (23). The single-phase module (23) can access the single-phase power of the external power grid to conduct an aging test on the single-phase charging pile (60).

8. The testing device for centralized aging of charging piles according to claim 1, characterized in that, The load system (50) is provided with multiple load modules (51). The load module (51) can adopt an AC energy-saving type electronic load module.

9. The testing device for centralized aging of charging piles according to claim 1, characterized in that, The inverter system (52) is provided with a plurality of inverter modules (53), and the inverter modules (53) can adopt three-phase grid-connected inverters.

10. A test device for centralized aging of charging piles according to any one of claims 1-9, characterized in that, It further includes a frame (10). The bottom of the frame (10) is provided with an assembly box body (11), and the assembly box body (11) is used for installing a power distribution system (15), a control system (16), a load system (50) and an inverter system (52); the upper part of the assembly box body (11) is provided with an aging bracket (12) perpendicular to the assembly box body (11), and a plurality of groups of aging modules (21) are installed in the aging bracket (12); the outer side of the top wall of the assembly box body (11) is provided with a first aging test board (13), and the middle part of the aging bracket (12) is provided with a second aging test board (14). The first aging test board (13) and the second aging test board (14) respectively cooperate with a plurality of groups of aging modules (21) to respectively perform aging tests on a plurality of charging piles (60).

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