Liquid-cooled full-current controller testing device

Abstract

The utility model discloses a liquid cooling total current controller testing device which comprises a liquid cooling unit and a detection tool, a fixing plate used for fixing a liquid cooling total current controller is arranged in the detection tool, and a fixing support of the liquid cooling total current controller is detachably connected to the fixing plate through screws. A liquid-cooling radiator is arranged in the liquid-cooling total current controller, the liquid-cooling radiator is provided with a liquid-cooling water inlet and a liquid-cooling water outlet, the side wall of the detection tool is provided with a liquid-cooling pipeline adapter, the liquid-cooling water inlet and the liquid-cooling water outlet are connected with a liquid-cooling pipeline, and the liquid-cooling pipeline is communicated with a liquid-cooling unit pipeline outside the detection tool through the liquid-cooling pipeline adapter; and a control detection unit and a control case are also arranged in the detection tool, and are used for carrying out an electrical test on the liquid-cooled total current controller. Aiming at the full-current controller with the liquid cooling device, the structural layout of the testing device is adjusted, so that the liquid cooling full-current controller is independently tested and is convenient to disassemble, and the testing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery controller testing technology, and in particular to a liquid-cooled full-current controller testing device. Background Technology

[0002] The full-current controller is a device that uses power electronics technology to control the charging and discharging of battery modules. It enables flexible interconnection within and between battery clusters, as well as full-current balancing within and between clusters, and has significant application value in energy storage systems. As a key component of flexible energy storage, the full-current controller requires full-power testing during small-batch production to verify its reliability. With increasing production volumes, designing more efficient testing equipment for full-current controllers in mass production is crucial to improving consistency and testing efficiency. Cost control remains an important research topic in this field.

[0003] Existing testing devices for battery controllers primarily involve mounting the controller onto the battery module to form a complete battery pack for testing. Liquid-cooled full-current controllers are full-current controllers with liquid cooling systems; how to test their liquid cooling effect is also a problem that current testing devices need to consider. Existing testing devices have the following shortcomings: ① The liquid-cooled full-current controller must be mounted on the battery module, which poses a safety hazard during disassembly and assembly because the battery module is continuously energized; ② The disassembly and assembly process of the liquid-cooled full-current controller is inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a liquid-cooled full-current controller testing device. For full-current controllers with liquid cooling devices, the structural layout of the testing device is adjusted so that the liquid-cooled full-current controller can be tested separately, which is convenient for disassembly and improves testing efficiency.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] A liquid-cooled full-current controller testing device includes a liquid cooling unit and a testing fixture. The testing fixture is provided with a fixing plate for fixing the liquid-cooled full-current controller. The side of the liquid-cooled full-current controller that is connected to the battery module is provided with a fixing bracket. During testing, the fixing bracket is detachably connected to the fixing plate by screws.

[0007] The liquid-cooled full-current controller is equipped with a liquid-cooled radiator, which has a liquid-cooled inlet and a liquid-cooled outlet. Both the liquid-cooled inlet and outlet extend out of the housing of the liquid-cooled full-current controller. The side wall of the testing fixture is equipped with a liquid-cooled pipeline adapter. The liquid-cooled inlet and outlet are connected to the liquid-cooled pipeline. The liquid-cooled pipeline is connected to the liquid-cooled unit pipeline of the liquid-cooled unit outside the testing fixture through the liquid-cooled pipeline adapter.

[0008] The testing fixture is also equipped with a control and testing unit and a control chassis. The output terminal of the control and testing unit is electrically connected to the control chassis, and the input terminal of the control and testing unit is electrically connected to the main power terminal of the liquid-cooled full-current controller.

[0009] Furthermore, the side wall of the testing fixture is provided with a pressure relief window.

[0010] Furthermore, the side wall of the testing fixture is provided with ventilation louvers.

[0011] Furthermore, the liquid cooling pipeline includes an inlet pipe and a return pipe, the liquid cooling inlet and the liquid cooling outlet are respectively connected to the inlet pipe and the return pipe, and the inlet pipe and the return pipe are connected to the liquid cooling unit pipeline through the liquid cooling pipeline adapter.

[0012] Furthermore, the left and right side walls of the testing fixture are respectively provided with inlet holes and outlet holes, and the positive and negative power supply wires of the liquid-cooled full current controller pass through the inlet holes and outlet holes respectively, and are electrically connected to the external power supply.

[0013] Furthermore, the testing fixture is a container, and the container has hinged doors on its front and rear sides.

[0014] Furthermore, the liquid-cooled full-current controller is located on the front side of the container, near the front door panel, and the control detection unit and control chassis are located above the liquid-cooled full-current controller.

[0015] Furthermore, an air conditioner is installed on the rear door panel of the container to provide normal operating temperature and humidity for the interior environment of the container.

[0016] According to the specific embodiments provided by this utility model, the liquid-cooled full-current controller testing device provided by this utility model discloses the following technical effects:

[0017] (1) The mounting bracket of the liquid-cooled full current controller can be detachably connected to the mounting plate of the testing fixture by screws, without the need to install it on the battery module for testing. This makes disassembly and assembly convenient and improves testing efficiency.

[0018] (2) The liquid cooling unit mainly provides coolant for the liquid-cooled full current controller for heat dissipation. It is set outside the testing fixture to avoid the vibration and electromagnetic interference of the liquid cooling unit during operation from affecting the normal testing of the liquid-cooled full current controller. The liquid cooling pipeline adapter is set on the side wall of the testing fixture to facilitate the connection of the liquid cooling pipeline and can be used to test the liquid cooling effect.

[0019] (3) Pressure relief windows and ventilation louvers can also be installed on the side walls of the testing fixture to improve the safety of the testing fixture. The testing fixture adopts a container structure and is equipped with hinged door panels, which facilitates the replacement of the internal liquid-cooled full current controller and other internal electrical components. At the same time, it can provide safety protection to prevent the spread of fire to the outside after an accident inside. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the internal structure layout of the testing tooling in an embodiment of the present invention;

[0022] Figure 2 This is a left front isometric side view of the liquid-cooled full-current controller test device according to an embodiment of this utility model;

[0023] Figure 3 This is a right rear isometric side view of the liquid-cooled full-current controller test device according to an embodiment of this utility model;

[0024] Figure 4 This is a top view of the liquid-cooled full-current controller test device according to an embodiment of the present invention;

[0025] Explanation of reference numerals in the attached drawings: 1. Liquid-cooled unit; 2. Liquid-cooled unit piping; 3. Testing fixture; 4. Liquid-cooled piping adapter; 5. Cable inlet; 6. Pressure relief window; 7. Exhaust louver; 8. Control and testing unit; 9. Control chassis; 10. Full-current control output terminal; 11. Liquid-cooled full-current controller; 12. Return water pipe; 13. Inlet water pipe; 14. Full-current controller input terminal; 15. Mounting bracket; 16. Mounting plate; 17. Air conditioner. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this patent description, terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the actual orientation or positional relationship shown. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this invention are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0028] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this patent shall be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection through an intermediate medium; or they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] The purpose of this invention is to provide a liquid-cooled full-current controller testing device. For full-current controllers with liquid cooling devices, the structural layout of the testing device is adjusted so that the liquid-cooled full-current controller can be tested separately, which is convenient for disassembly and improves testing efficiency.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The liquid-cooled full-current controller referred to in this utility model is an existing full-current controller with an added liquid-cooled heat sink. The liquid-cooled heat sink can be a heat dissipation pipe set below the power electronic components, etc. Therefore, it is necessary to test the performance of the full-current controller under the condition of liquid-cooled heat sink heat dissipation.

[0032] like Figures 1-4As shown, the liquid-cooled full-current controller testing device provided by this utility model includes a liquid-cooling unit 1 and a testing fixture 3. The testing fixture 3 is provided with a fixing plate 16 for fixing a liquid-cooled full-current controller 11. The side of the liquid-cooled full-current controller 11 that is connected to the battery module is provided with a fixing bracket 15. During testing, the fixing bracket 15 is detachably connected to the fixing plate 16 by screws. For example, the testing fixture 3 adopts a container structure. The front and rear sides of the container are provided with hinged doors. The container body can achieve a high protection level to ensure that other internal components are not affected by the external environment during testing. The doors on the front and rear sides facilitate the replacement of the internal full-current controller and other internal electrical components, and at the same time provide safety protection to prevent the spread of fire to the outside after an accidental fire inside.

[0033] The liquid-cooled full-current controller 11 is equipped with a liquid-cooled radiator, which has a liquid-cooled inlet and a liquid-cooled outlet. Both the liquid-cooled inlet and outlet extend out of the housing of the liquid-cooled full-current controller 11. The side wall of the testing fixture 3 is equipped with a liquid-cooled pipeline adapter 4. The liquid-cooled inlet and outlet are connected to a liquid-cooled pipeline. The liquid-cooled pipeline is connected to the liquid-cooled unit pipeline 2 of the liquid-cooled unit 1 outside the testing fixture 3 through the liquid-cooled pipeline adapter 4. Specifically, the left side of the container body is equipped with a liquid-cooled pipeline adapter 4. The liquid-cooled pipeline includes an inlet pipe 13 and a return pipe 12. The liquid-cooled inlet and outlet are connected to the inlet pipe 13 and the return pipe 12, respectively. The inlet pipe 13 and the return pipe 12 are connected to the liquid-cooled unit pipeline 2 outside the testing fixture 3 through the liquid-cooled pipeline adapter 4, and thus connected to the liquid-cooled unit 1.

[0034] The testing fixture 3 is also equipped with a control and testing unit 8 and a control chassis 9. The output end of the control and testing unit 8 is electrically connected to the control chassis 9, and the input end of the control and testing unit 8 is electrically connected to the main power terminal of the liquid-cooled full-current controller 11. The main power terminal includes a full-current control output terminal 10 and a full-current controller input terminal 14.

[0035] The control detection unit 8 detects the current and voltage status output by the liquid-cooled full-current controller, uploads the detected status to the control chassis 9 for analysis and calculation (e.g., comparison with a set threshold), and finally outputs the analysis and calculation results to a display outside the detection device to determine whether the current and voltage output by the liquid-cooled full-current controller meet the requirements. For example, the control detection unit 8 can use a Hall sensor to detect the current status, a voltage transformer to detect the voltage status, etc. The control chassis 9 includes boards composed of various chips and has data processing capabilities. Specifically, the selection and working principle of the control detection unit 8 and the control chassis 9 can be referenced from the testing device settings of various controllers in the prior art, and will not be elaborated here.

[0036] The side wall of the testing fixture 3 is equipped with a pressure relief window 6 and ventilation louvers (including air inlet louvers and air outlet louvers 7). Specifically, the left and right sides of the container body are equipped with air inlet louvers, air outlet louvers 7, and pressure relief window 6. The pressure relief window 6 can quickly discharge the heat generated inside the container due to the fire, preventing an explosion caused by the internal heat source. The air inlet louvers and air outlet louvers 7 can quickly discharge the smoke inside the container.

[0037] The detection fixture 3 has an inlet hole 5 and an outlet hole on its left and right side walls, respectively. The positive and negative power supply wires of the liquid-cooled full current controller 11 pass through the inlet hole 5 and the outlet hole, respectively, and are electrically connected to an external power source.

[0038] The liquid-cooled full-current controller 11 is located on the front side of the container, close to the front door panel, which facilitates disassembly and replacement and can improve the overall testing efficiency. The control and detection unit 8 and the control box 9 are located above the liquid-cooled full-current controller 11, which facilitates internal wiring and checking the working status.

[0039] An air conditioner 17 is installed on the rear door panel of the container to provide normal operating temperature and humidity for the interior environment of the container.

[0040] The liquid-cooled full-current controller testing device provided in this embodiment of the utility model has a high protection level for the testing fixture, so that the internal electrical components are not affected by the external environment; the liquid-cooled full-current controller is easy to disassemble, which can improve the testing efficiency; and safety protection measures are configured to ensure the safety of the test process.

[0041] This utility model focuses on protecting the structural layout of the liquid-cooled full-current controller test device, and can perform full-current controller testing in liquid-cooled mode. It does not impose specific limitations on the selection of electrical components inside the test device, and will not be elaborated here.

[0042] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, those skilled in the art will recognize that, based on the ideas of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A liquid-cooled full-current controller testing device, characterized in that, It includes a liquid cooling unit (1) and a testing fixture (3). The testing fixture (3) is provided with a fixing plate (16) for fixing a liquid-cooled full current controller (11). The liquid-cooled full current controller (11) is provided with a fixing bracket (15) on the side for connecting to the battery module. During testing, the fixing bracket (15) is detachably connected to the fixing plate (16) by screws. The liquid-cooled full-current controller (11) is equipped with a liquid-cooled radiator. The liquid-cooled radiator is equipped with a liquid-cooled inlet and a liquid-cooled outlet. Both the liquid-cooled inlet and the liquid-cooled outlet extend out of the housing of the liquid-cooled full-current controller (11). The side wall of the testing fixture (3) is equipped with a liquid-cooled pipeline adapter (4). The liquid-cooled inlet and the liquid-cooled outlet are connected to the liquid-cooled pipeline. The liquid-cooled pipeline is connected to the liquid-cooled unit pipeline (2) of the liquid-cooled unit (1) outside the testing fixture (3) through the liquid-cooled pipeline adapter (4). The testing fixture (3) is also equipped with a control testing unit (8) and a control chassis (9). The output end of the control testing unit (8) is electrically connected to the control chassis (9), and the input end of the control testing unit (8) is electrically connected to the main power terminal of the liquid-cooled full-current controller (11).

2. The liquid-cooled full-current controller testing device according to claim 1, characterized in that, The side wall of the testing fixture (3) is provided with a pressure relief window (6).

3. The liquid-cooled full-current controller testing device according to claim 1, characterized in that, The side wall of the testing fixture (3) is provided with ventilation louvers.

4. The liquid-cooled full-current controller testing device according to claim 1, characterized in that, The liquid cooling pipeline includes an inlet pipe (13) and a return pipe (12). The liquid cooling inlet and the liquid cooling outlet are respectively connected to the inlet pipe (13) and the return pipe (12). The inlet pipe (13) and the return pipe (12) are connected to the liquid cooling unit pipeline (2) through the liquid cooling pipeline adapter (4).

5. The liquid-cooled full-current controller testing device according to claim 1, characterized in that, The detection fixture (3) has an inlet hole (5) and an outlet hole on its left and right side walls respectively. The positive and negative power supply wires of the liquid-cooled full current controller (11) pass through the inlet hole (5) and the outlet hole respectively and are electrically connected to the external power supply.

6. The liquid-cooled full-current controller testing device according to claim 1, characterized in that, The testing fixture (3) is a container, and the front and rear sides of the container are provided with hinged door panels.

7. The liquid-cooled full-current controller testing device according to claim 6, characterized in that, The liquid-cooled full-current controller (11) is located on the front side of the container, near the front door panel, and the control detection unit (8) and the control box (9) are located above the liquid-cooled full-current controller (11).

8. The liquid-cooled full-current controller testing device according to claim 6, characterized in that, An air conditioner (17) is installed on the rear door panel of the container to provide normal operating temperature and humidity for the interior environment of the container.

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