Battery plug-in box electrical performance test tool, system and test method

Abstract

The application provides a battery plug-in box electrical performance test tool, system and test method. The battery plug-in box electrical performance test tool is used for electrical performance test of a battery plug-in box with a heat dissipation fan, and a plug-in box temperature detection unit is arranged in the battery plug-in box. The tool comprises a frame, an ambient temperature detection unit and a control unit. A test bin for placing the battery plug-in box is arranged in the frame. A bin opening is arranged on the frame for the battery plug-in box to enter or exit the test bin. A heat dissipation opening is arranged to communicate the test bin with the outside. A heat preservation plate is rotatably connected to the frame at the heat dissipation opening. An opening and closing driving mechanism is connected to the heat preservation plate. The battery plug-in box electrical performance test tool detects the temperature by using the ambient temperature detection unit and the plug-in box temperature detection unit. The control unit judges and controls the opening and closing of the heat dissipation fan and the action of the opening and closing driving mechanism, so as to ensure that the battery plug-in box is at a suitable test temperature and ensure the accuracy of the test data.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage battery testing, in particular to a battery subrack electrical performance test tool. The present application also relates to an electrical performance test system and a battery subrack electrical performance test temperature control method. BACKGROUND

[0002] A battery subrack is a group battery composed of a plurality of modules, a structure, a battery management system (BMS) and other electrical and structural components through interconnection in series and parallel.

[0003] Generally, before being loaded into a container, a battery subrack needs to be installed on a battery rack for electrical performance testing, and can only be loaded into the container after passing the test.

[0004] Currently, the commonly used test equipment in the battery industry is an incubator, which can be used for electrical performance testing and verification of batteries and modules. However, the temperature control function of the incubator needs to be continuously powered from the outside to maintain a constant temperature inside the incubator, which is energy-consuming and only suitable for small object testing.

[0005] Therefore, a battery subrack battery rack can be used for testing. However, the common battery subrack battery rack only considers the heat dissipation function during testing and does not consider whether the battery subrack can operate normally in a low-temperature environment. SUMMARY

[0006] Therefore, the present application aims to provide a battery subrack electrical performance test tool to stabilize the test environment temperature and ensure the accuracy of test data.

[0007] To achieve the above-mentioned purpose, the technical solution of the present application is as follows:

[0008] The utility model provides a battery plug -in box electric performance test frock for carrying out electric performance test to the battery plug -in box with heat dissipation fan, and the battery plug -in box is equipped with plug -in box temperature detection unit, the frock includes frame, environmental temperature detection unit and control unit, the frame is equipped with the test bin for placing the battery plug -in box, and the frame is equipped with the bin mouth for the battery plug -in box to go in and out the test bin, and the heat dissipation mouth that the test bin is through with the outside, the heat dissipation mouth is equipped with the heat preservation board that rotates the connection on the frame, and the opening and closing drive mechanism that is connected with the heat preservation board transmission,

[0009] The environmental temperature detection unit is arranged on the frame and is used for detecting the temperature in the test bin, the control unit is connected with the plug -in box temperature detection unit, the environmental temperature detection unit and the heat dissipation fan and the opening and closing drive mechanism, and the control unit can control the heat dissipation fan opening and closing and control the opening and closing drive mechanism to act according to the detection signal of the plug -in box temperature detection unit and the environmental temperature detection unit, and the heat dissipation mouth is opened and closed by the heat preservation board.

[0010] Further, the heat dissipation mouth is divided into two on the opposite sides of the test bin.

[0011] Further, the test bin is divided into two groups of sub-chambers, each group of sub-chambers is arranged in multiple layers, and the two groups of sub-chambers are arranged one by one corresponding to the heat dissipation mouths on both sides.

[0012] Further, the opening and closing drive mechanism includes a motor connected in transmission with the heat preservation board.

[0013] Further, the environmental temperature detection unit is arranged in the test bin.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The battery plug -in box electric performance test frock detects the environmental temperature by the environmental temperature detection unit, detects the current temperature in the test bin by the plug -in box temperature detection unit, and feeds back the detection signal to the control unit, and the control unit judges and controls the heat dissipation fan opening and closing and controls the opening and closing drive mechanism to act, so as to ensure that the battery plug -in box is in the appropriate test temperature and ensures the accuracy of test data.

[0016] The utility model also relates to a battery plug -in box electric performance test temperature control method, and the method comprises the following steps:

[0017] Obtaining the temperature in the battery plug -in box and the environmental temperature in the test bin;

[0018] The obtained box temperature is compared with a preset box temperature threshold value, and the obtained environment temperature is compared with a preset environment temperature threshold value, and comparison results are obtained respectively;

[0019] According to the obtained comparison results, the opening and closing of the heat dissipation fan is controlled, and the opening and closing of the heat dissipation port by the heat preservation plate is controlled.

[0020] Further, the preset box temperature threshold value includes a box temperature upper limit value, and the preset environment temperature threshold value includes an environment temperature upper limit value.

[0021] When the comparison results meet the conditions that the box temperature is greater than the box temperature upper limit value and the environment temperature is greater than the environment temperature upper limit value, the heat dissipation fan is controlled to be turned on, and the heat dissipation port is controlled to be opened by the heat preservation plate.

[0022] Further, the preset box temperature threshold value includes a box temperature lower limit value, and the preset environment temperature threshold value includes an environment temperature lower limit value.

[0023] When the comparison results meet the conditions that the box temperature is less than the box temperature lower limit value and the environment temperature is less than the environment temperature lower limit value, the heat dissipation fan is controlled to be turned off, and the heat dissipation port is controlled to be closed by the heat preservation plate.

[0024] When the comparison results meet the conditions that the box temperature is greater than the box temperature upper limit value and the environment temperature is less than the environment temperature lower limit value, the heat dissipation fan is controlled to be turned on, and the heat dissipation port is controlled to be closed by the heat preservation plate.

[0025] When the comparison results meet the conditions that the box temperature is less than the box temperature lower limit value and the environment temperature is greater than the environment temperature upper limit value, the heat dissipation fan is controlled to be turned off, and the heat dissipation port is controlled to be opened by the heat preservation plate.

[0026] The battery box electrical performance test temperature control method can automatically adjust the environment temperature of the battery box under different box temperatures and environment temperatures, realize temperature control in the battery box electrical performance test process, and improve the accuracy of battery box test data.

[0027] In addition, the application also provides a battery box electrical performance test system located in a working space, which comprises the battery box electrical performance test tool and the test equipment for testing the electrical performance of the battery box.

[0028] Compared with the prior art, the battery cubicle electrical performance test system and the battery cubicle electrical performance test temperature control method have the same effect, and details are not described herein again. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein in conjunction with the description of the application. The drawings are as follows:

[0030] Figure 1 The overall structure schematic view of the battery cubicle electrical performance test tool according to the first embodiment of the application is shown in the figure.

[0031] Figure 2 The rear view of the battery cubicle electrical performance test tool according to the first embodiment of the application is shown in the figure.

[0032] Explanation of reference signs:

[0033] 1, frame body; 10, sub-compartment body; 100, compartment opening; 101, heat dissipation opening; 11, ambient temperature detection unit; 2, heat preservation plate; 20, opening and closing driving mechanism; 200, rotating shaft. DETAILED DESCRIPTION

[0034] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of the application, it should be noted that if terms indicating orientation or position relationship such as "upper", "lower", "inner", "outer" and the like appear, they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as limiting the application. The application. In addition, if the terms "first", "second" and the like appear, they are also used for description purposes and cannot be understood as indicating or implying relative importance.

[0036] In addition, in the description of the application, unless otherwise explicitly limited, the terms "mounting", "connection", "connection", "connector" should be understood broadly. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood in combination with the specific circumstances.

[0037] The application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0038] Embodiment one

[0039] The embodiment relates to a battery plug-in box electrical performance test tool for testing the electrical performance of a battery plug-in box with a heat dissipation fan, and the battery plug-in box is provided with a plug-in box temperature detection unit. The battery plug-in box can be a plug-in box with a heat dissipation fan or a self-cooled plug-in box on the market.

[0040] In the overall structure, the tool comprises a frame body 1, an ambient temperature detection unit 11 and a control unit. The frame body 1 is provided with a test bin for placing the battery plug-in box, and the frame body 1 is provided with a bin opening 100 for the battery plug-in box to enter and exit the test bin, and a heat dissipation opening 101 for connecting the test bin with the outside, the heat dissipation opening 101 is provided with a heat preservation plate 2 rotatably connected to the frame body 1, and an opening and closing driving mechanism 20 connected in transmission with the heat preservation plate 2.

[0041] In addition, the ambient temperature detection unit 11 is arranged on the frame body 1 and is used for detecting the temperature in the test bin. Specifically, the control unit is connected with the plug-in box temperature detection unit, the ambient temperature detection unit 11, the heat dissipation fan and the opening and closing driving mechanism 20, and the control unit can control the opening and closing of the heat dissipation fan and the action of the opening and closing driving mechanism 20 according to the detection signals of the plug-in box temperature detection unit and the ambient temperature detection unit 11, so that the heat dissipation opening 101 is opened and closed by the heat preservation plate 2.

[0042] According to the above structure, the ambient temperature detection unit 11 is used for detecting the ambient temperature, the plug-in box temperature detection unit is used for detecting the current temperature in the test bin, and the detection signals are fed back to the control unit, and the control unit is used for judging and controlling the opening and closing of the heat dissipation fan and the action of the opening and closing driving mechanism 20, so that the battery plug-in box is kept at a suitable test temperature and the accuracy of the test data is ensured.

[0043] Based on the overall design, an exemplary structure of the battery plug-in box electrical performance test tool of the embodiment is shown in Figure 1 and Figure 2 It should be noted that, except that the bin opening 100 and the heat dissipation opening 101 of the frame body 1 are connected with the outside environment, the remaining sides of the frame body 1 are closed. In addition, in order to improve the heat dissipation effect of the frame body 1 on the battery plug-in box, the heat dissipation opening 101 is divided into two heat dissipation openings arranged on the opposite sides of the test bin, that is, the heat dissipation opening 101 is arranged on the left and right sides of the frame body 1. Figure 1 In addition, the frame body 1 can adopt an alloy frame with surface spraying of insulating paint to ensure the bearing capacity and stability of the frame body 1.

[0044] In the embodiment, in order to improve the heat dissipation effect of the battery plug-in box in the test bin, the test bin is divided into two groups of sub-bins 10, each group of sub-bins 10 is arranged in multiple layers stacked up and down, and the two groups of sub-bins 10 are arranged in one-to-one correspondence with the heat dissipation openings 101 on the two sides, that is, each group of sub-bins 10 is cooled by the corresponding heat dissipation opening 101, so that the heat of the battery plug-in box in the test bin is easily discharged.

[0045] In addition, the control unit controls the opening and closing driving mechanism 20 to act, and the heat preservation plate 2 opens or closes the heat dissipation port 101. Specifically, the opening and closing driving mechanism 20 includes a motor connected in transmission with the heat preservation plate 2, and the motor is connected with a rotating shaft 200 penetrating between the heat preservation plate 2 and the frame body 1. After receiving the instruction sent by the control unit, the motor rotates the rotating shaft 200, and the heat preservation plate 2 rotates accordingly, so that the heat preservation plate 2 can cover the heat dissipation port 101 for heat preservation, or the heat preservation plate 2 can expose the heat dissipation port 101 for heat dissipation. Among them, the heat preservation plate 2 can be made of non-metallic material with good insulation performance to ensure the heat preservation and insulation performance of the frame body 1.

[0046] In order to ensure the accuracy of the detection data, the environmental temperature detection unit 11 is provided in the test chamber. The environmental temperature detection unit 11 adopts an environmental temperature sensor, and the environmental temperature detection unit 11 can also be arranged on the back of the frame body 1. The plurality of environmental temperature detection units 11 can detect the temperature at different positions respectively. When the tool works, the average value of the plurality of environmental temperature detection units 11 can be taken as the environmental temperature, so that the control unit sends more accurate instructions to the battery plug-in box for heat dissipation or heat preservation.

[0047] The battery plug-in box performance test tool of the embodiment monitors the temperature by the environmental temperature detection unit 11 and the plug-in box temperature detection unit. The control unit controls the heat dissipation fan to open or close according to the detection signals of the plug-in box temperature detection unit and the environmental temperature detection unit 11, and controls the heat preservation plate 2 to open or close by the motor, so as to realize the controllability of the environmental temperature of the battery plug-in box to ensure the accuracy of the test data. In addition, the environmental temperature detection unit 11, the plug-in box temperature detection unit and the motor rotation are used to realize the temperature control in the electrical performance test process, so that the overall tool equipment has low energy consumption, which is helpful to improve the practicability of the tool.

[0048] Embodiment two

[0049] The embodiment relates to a battery plug-in box electrical performance test temperature control method, which specifically comprises the following steps:

[0050] Obtaining the box temperature in the battery plug-in box and the environmental temperature in the test chamber; comparing the obtained box temperature with a preset box temperature threshold value, and comparing the obtained environmental temperature with a preset environmental temperature threshold value, and obtaining comparison results respectively; according to the obtained comparison results, controlling the opening and closing of the heat dissipation fan, and controlling the opening and closing driving mechanism 20 to act, and the heat preservation plate 2 opens or closes the heat dissipation port 101.

[0051] In the embodiment, the preset box temperature threshold value includes a box temperature upper limit value, and the preset environmental temperature threshold value includes an environmental temperature upper limit value.

[0052] When the comparison result satisfies that the box temperature is greater than the upper limit of the box temperature and the environment temperature is greater than the upper limit of the environment temperature, the heat dissipation fan is controlled to be turned on and the heat dissipation opening 101 is opened by the heat preservation plate 2.

[0053] In addition, the preset box temperature threshold value includes a lower limit of the box temperature, and the preset environment temperature threshold value includes a lower limit of the environment temperature.

[0054] When the comparison result satisfies that the box temperature is less than the lower limit of the box temperature and the environment temperature is less than the lower limit of the environment temperature, the heat dissipation fan is controlled to be turned off and the heat dissipation opening 101 is closed by the heat preservation plate 2.

[0055] When the comparison result satisfies that the box temperature is greater than the upper limit of the box temperature and the environment temperature is less than the lower limit of the environment temperature, the heat dissipation fan is controlled to be turned on and the heat dissipation opening 101 is closed by the heat preservation plate 2.

[0056] When the comparison result satisfies that the box temperature is less than the lower limit of the box temperature and the environment temperature is greater than the upper limit of the environment temperature, the heat dissipation fan is controlled to be turned off and the heat dissipation opening 101 is opened by the heat preservation plate 2.

[0057] The test temperature control method of the embodiment will be described in detail below.

[0058] When the battery plug-in box is tested, the control unit determines whether the box temperature and the environment temperature are within the temperature range according to the detection signal. If the box temperature is greater than the upper limit of the box temperature and the environment temperature is also greater than the upper limit of the environment temperature, the heat dissipation opening 101 is exposed by the heat preservation plate 2, and the heat dissipation fan and the heat dissipation opening 101 simultaneously cool the battery plug-in box. If the box temperature is less than the lower limit of the box temperature and the environment temperature is also less than the lower limit of the environment temperature, the heat dissipation opening 101 is closed by the heat preservation plate 2, and the heat dissipation fan is turned off to heat the battery plug-in box.

[0059] It should be noted that when the box temperature is greater than the upper limit of the box temperature and the environment temperature is less than the lower limit of the environment temperature, the control unit controls the heat dissipation fan to be turned on, and the heat preservation plate 2 is rotated to close the heat dissipation opening 101. At this time, the box temperature decreases due to the opening of the heat dissipation fan. If the box temperature is less than the lower limit of the box temperature and the environment temperature is greater than the upper limit of the environment temperature, the heat dissipation fan is controlled to be turned off, and the heat dissipation opening 101 is opened by the heat preservation plate 2. At this time, the box temperature rises due to the influence of the environment temperature. In this way, during the test process of the battery plug-in box, the box temperature and the environment temperature can be determined in a timely manner.

[0060] The battery plug-in box electrical performance test temperature control method can automatically adjust the environment temperature of the battery plug-in box according to different box temperatures and environment temperatures, realize temperature control during the electrical performance test of the battery plug-in box, and improve the accuracy of the test data of the battery plug-in box.

[0061] In addition, the application also relates to a battery plug-in box electrical performance test system, which is located in a working space. The system comprises a battery plug-in box electrical performance test tool arranged in the working space and a test device for testing the electrical performance of the battery plug-in box. A temperature adjusting device for adjusting the temperature in the working space is arranged in the working space.

[0062] It is worth mentioning that the temperature adjusting device in the working space can be an air conditioner. When the ambient temperature in the working space and the temperature in the box are both lower than the lower limit value, the temperature adjusting device is needed to increase the ambient temperature in the working space until the temperature in the box and the ambient temperature are within the threshold. The battery plug-in box electrical performance test system has the same effect as the battery plug-in box electrical performance test temperature control method, and thus will not be described here.

[0063] The above only describes the preferred embodiments of the application and is not used to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A battery plug-in box electrical performance test temperature control method, characterized in that: the method is based on a battery plug-in box electrical performance test tool, the battery plug-in box electrical performance test tool is used for electrical performance test of a battery plug-in box with a cooling fan, and a plug-in box temperature detection unit is arranged in the battery plug-in box, the battery plug-in box electrical performance test tool comprises a rack (1), an ambient temperature detection unit (11) and a control unit; the rack (1) is provided with a test chamber for placing the battery plug-in box, and the rack (1) is provided with a chamber opening (100) for the battery plug-in box to enter and exit the test chamber, and a cooling opening (101) for connecting the test chamber with the outside, the cooling opening (101) is provided with a heat preservation plate (2) rotatably connected to the rack (1), and an opening and closing driving mechanism (20) connected in transmission with the heat preservation plate (2); the ambient temperature detection unit (11) is arranged on the rack (1) and is used for detecting the temperature in the test chamber; the control unit is connected with the plug-in box temperature detection unit, the ambient temperature detection unit (11), the cooling fan and the opening and closing driving mechanism (20), and according to the detection signals of the plug-in box temperature detection unit and the ambient temperature detection unit (11), the control unit can control the opening and closing of the cooling fan and the action of the opening and closing driving mechanism (20), and the opening and closing of the cooling opening (101) by the heat preservation plate (2); the method comprises: obtaining the chamber temperature in the battery plug-in box and the ambient temperature in the test chamber; comparing the obtained chamber temperature with a preset chamber temperature threshold value, and comparing the obtained ambient temperature with a preset ambient temperature threshold value, and obtaining comparison results respectively; according to the obtained comparison results, controlling the opening and closing of the cooling fan and the action of the opening and closing driving mechanism (20), and the opening and closing of the cooling opening (101) by the heat preservation plate (2). 2.The battery plug-in box electrical performance test temperature control method according to claim 1, characterized in that: the cooling opening (101) is divided into two. 3.The battery plug-in box electrical performance test temperature control method according to claim 2, characterized in that: the test chamber is divided into two groups of sub-chambers (10), each group of the sub-chambers (10) is arranged in multiple layers stacked one above another, and the two groups of the sub-chambers (10) are arranged one by one corresponding to the two cooling openings (101) on the two sides. 4.The battery plug-in box electrical performance test temperature control method according to claim 1, characterized in that: the opening and closing driving mechanism (20) comprises a motor connected in transmission with the heat preservation plate (2). 5.The battery plug-in box electrical performance test temperature control method according to claim 1, characterized in that: the ambient temperature detection unit (11) is arranged in multiple in the test chamber. 6.The battery plug-in box electrical performance test temperature control method according to any one of claims 1 to 5, characterized in that: The preset threshold of the temperature in the box includes an upper limit of the temperature in the box, and the preset threshold of the ambient temperature includes an upper limit of the ambient temperature. When the comparison result satisfies that the temperature in the box is greater than the upper limit of the temperature in the box and the ambient temperature is greater than the upper limit of the ambient temperature, the cooling fan is controlled to be turned on, and the heat dissipation port (101) is opened by the heat preservation plate (2).

7. The battery plug-in box electrical performance test temperature control method according to claim 6, characterized in that: The preset threshold of the temperature in the box includes a lower limit of the temperature in the box, and the preset threshold of the ambient temperature includes a lower limit of the ambient temperature. When the comparison result satisfies that the temperature in the box is less than the lower limit of the temperature in the box and the ambient temperature is less than the lower limit of the ambient temperature, the cooling fan is controlled to be turned off, and the heat dissipation port (101) is closed by the heat preservation plate (2).

8. The battery plug-in box electrical performance test temperature control method according to claim 7, characterized in that: When the comparison result satisfies that the temperature in the box is greater than the upper limit of the temperature in the box and the ambient temperature is less than the lower limit of the ambient temperature, the cooling fan is controlled to be turned on, and the heat dissipation port (101) is closed by the heat preservation plate (2); When the comparison result satisfies that the temperature in the box is less than the lower limit of the temperature in the box and the ambient temperature is greater than the upper limit of the ambient temperature, the cooling fan is controlled to be turned off, and the heat dissipation port (101) is opened by the heat preservation plate (2).

Images