Charging and discharging testing device

Abstract

The invention provides a charging and discharging testing device, and relates to the field of testing devices. The charging and discharging test device comprises a test protection box, a driving assembly and a test assembly. A supporting assembly is installed in the test protection box, an electric heating plate is embedded in the upper surface of the supporting assembly, and the supporting assembly is used for placing an energy storage battery body; the driving assembly comprises a first driving part and a second driving part, and the first driving part penetrates through the side wall of the test protection box to be in transmission connection with the supporting assembly so as to drive the supporting assembly to move horizontally; the second driving part is located in the test protection box and is in transmission connection with the supporting assembly so as to drive the supporting assembly to vertically lift; the test assembly comprises a test equipment body, the test equipment body is installed on the top wall of the test protection box, and a connecting part of the test equipment body is used for being electrically connected with an electrode of the energy storage battery body. The charging and discharging test device provided by the invention solves the technical problem that the performance test result of the energy storage battery is inaccurate in the prior art.

Description

Technical Field

[0001] The present application relates to the field of testing devices, and in particular, to a charging and discharging testing device. Background Art

[0002] With the continuous development of new energy technologies, energy storage devices play a vital role in the field of energy storage and conversion. The most common energy storage battery is lead-acid battery. With the rise of new energy fields, the demand for energy storage batteries is increasing. As the core component of energy storage devices, the performance of energy storage batteries is directly related to the reliability and safety of the entire energy storage system. Therefore, it is particularly important to conduct comprehensive and accurate performance testing of energy storage batteries.

[0003] Existing energy storage battery testing technology mainly focuses on the detection of its charging and discharging performance. The battery is usually placed on a fixed test platform and connected to the test equipment to measure the battery's voltage, current and other parameters. This testing method is inconsistent with the actual use environment, resulting in inaccurate test results. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a charge and discharge test device to alleviate the technical problem of inaccurate energy storage battery performance test results existing in the prior art.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: The charge and discharge test device provided by the present invention comprises a test protection box, a drive component and a test component; A support assembly is installed in the test protection box, an electric heating plate is embedded on the upper surface of the support assembly, and the support assembly is used to place the energy storage battery body; The driving assembly includes a first driving member and a second driving member, wherein the first driving member passes through the side wall of the test protection box and is transmission-connected to the support assembly to drive the support assembly to move horizontally; the second driving member is located in the test protection box and is transmission-connected to the support assembly to drive the support assembly to move vertically; The test assembly comprises a test device body, the test device body is mounted on the top wall of the test protection box, and the connection part of the test device body is used to be electrically connected to the electrode of the energy storage battery body.

[0006] Furthermore, the support assembly includes a movable frame and a placement plate, and the placement plate is located above the movable frame; The first driving member is in driving connection with the movable frame to drive the movable frame to move in an orderly or disorderly manner; The second driving member is installed on the movable frame and is in driving connection with the placement plate to drive the placement plate to rise and fall in an orderly or disorderly manner.

[0007] Furthermore, the second driving member is connected to the placement plate via a cam body; The second driving member is connected to the cam body, and the outer wall of the cam body is in contact with the bottom wall of the placement plate. The cam body drives the placement plate to rise and fall in an orderly or disorderly manner.

[0008] Furthermore, the second driving member has two driving ends, and the cam bodies are provided with two, and the two cam bodies are respectively connected to the two driving ends.

[0009] Furthermore, the protrusions of the two cam bodies are staggered.

[0010] Furthermore, the support assembly also includes a step guide rod, one end of which is connected to the placement plate, and the other end of which passes through the movable frame and is provided with a limiting protrusion.

[0011] Furthermore, the step guide rod sleeve is provided with a return spring, one end of the return spring is connected to the bottom wall of the movable frame, and the other end is connected to the limiting protrusion.

[0012] Furthermore, a plurality of the step guide rods are provided, and each of the step guide rods is sleeved with the return spring.

[0013] Furthermore, the elastic coefficient of at least one of the return springs is different from the elastic coefficients of the other return springs.

[0014] Furthermore, a mounting groove is provided on the top wall of the placement plate, and the electric heating plate is installed in the mounting groove.

[0015] Furthermore, the inner wall of the mounting groove and the top of the electric heating plate are both covered with a high temperature resistant ceramic plate.

[0016] Furthermore, the test assembly includes an electric push rod and a mounting plate, wherein the electric push rod is mounted on the top of the test protection box and passes through the top wall of the test protection box to be connected to the mounting plate; The mounting plate has a through slot, an insulating ceramic ring is slidably mounted in the through slot, and the testing device body is mounted on the top surface of the testing protection box and in the insulating ceramic ring.

[0017] Furthermore, a smoke sensor and a fire sprinkler are installed in the test protection box, and the smoke sensor is signal-connected to the fire sprinkler.

[0018] Furthermore, the charging and discharging test device further comprises an exhaust duct and an exhaust device, wherein the input end of the exhaust duct extends into the test protection box, the output end is located outside the test protection box, and an air filter is installed; The air extraction device is installed on the air extraction duct.

[0019] Furthermore, the charge and discharge test device also includes a clamping assembly, which is installed on the top surface of the support assembly to clamp the energy storage battery body.

[0020] Based on the above technical solutions, the technical effects that can be achieved by the present invention are analyzed as follows: The charge and discharge test device provided by the present invention comprises a test protection box, a drive assembly and a test assembly; a support assembly is installed in the test protection box, an electric heating plate is embedded in the upper surface of the support assembly, and the support assembly is used to place an energy storage battery body; the drive assembly comprises a first drive member and a second drive member, the first drive member passes through the side wall of the test protection box and is transmission-connected to the support assembly to drive the support assembly to move horizontally; the second drive member is located in the test protection box and is transmission-connected to the support assembly to drive the support assembly to rise and fall vertically; the test assembly comprises a test equipment body, the test equipment body is installed on the top wall of the test protection box, and the connection part of the test equipment body is used to electrically connect to the electrodes of the energy storage battery body. The charge and discharge test device firstly measures the voltage and current of the charge and discharge process of the energy storage battery body by electrically connecting the test equipment body of the test assembly with the electrodes of the energy storage battery body; and horizontally moves the support assembly through the first driving member, and vertically vibrates the support assembly through the second driving member, so as to realize the horizontal movement and vertical vibration of the energy storage battery body fixed on the support assembly, thereby realizing the charge and discharge test of the state of the energy storage battery body when simulating actual application; an electric heating plate is embedded in the upper surface of the support assembly, so as to further simulate the environment in which the energy storage battery body is located during actual application, thereby realizing the charge and discharge test of the state of the energy storage battery body when simulating actual application.

[0021] The charging and discharging test device simulates the performance test of the energy storage battery body under the bumpy state after being installed on the vehicle through the driving component, which can more truly reflect the performance of the energy storage battery body under dynamic conditions, avoiding the problem of large deviation between the test results and the actual use caused by the traditional static test method; the performance test of the energy storage battery body under high temperature is simulated by the electric heating plate, which is helpful to comprehensively evaluate the charging and discharging performance and safety performance of the energy storage battery body under different temperature conditions, and provide more accurate performance data support for the actual application of the energy storage battery body. In addition, the charging and discharging test device can not only detect the charging and discharging performance of the energy storage battery body, but also conduct tests while simulating dynamic and high temperature conditions. By connecting the electrodes of the test equipment body and the energy storage battery body, the voltage and current and other parameter changes of the energy storage battery body under complex working conditions can be monitored in real time, and a comprehensive performance evaluation can be achieved. It can more comprehensively understand the performance of the energy storage battery body in various situations that may be encountered in actual use, and provide a strong data basis for the design optimization, quality control and safety warning of the energy storage battery body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of the charge and discharge test device provided in the embodiment of the present application Figure 1 ; Figure 2 A schematic diagram of the structure of the charge and discharge test device provided in the embodiment of the present application Figure 2 ; Figure 3 for Figure 2 A partial enlarged view of the middle A; Figure 4 Schematic diagram of the internal structure of the charge and discharge test device provided in the embodiment of the present application Figure 1 ; Figure 5 Schematic diagram of the internal structure of the charge and discharge test device provided in the embodiment of the present application Figure 2 ; Figure 6 Schematic diagram of the structure of the support assembly in the charge and discharge test device provided in the embodiment of the present application Figure 1 ; Figure 7 Schematic diagram of the structure of the support assembly in the charge and discharge test device provided in the embodiment of the present application Figure 2 ; Figure 8 A schematic diagram of the structure of the test device body in the charge and discharge test device provided in an embodiment of the present application; Fig. 9 for Figure 8 A partial enlarged view of point B in the middle; Fig.10 A schematic diagram of the structure of a clamping assembly in a charge and discharge test device provided in an embodiment of the present application.

[0024] icon: 1-test protection box; 2-protective sealing door; 3-first drive member; 4-reciprocating screw; 5-movable frame; 6-step guide rod; 7-reset spring; 8-placing plate; 9-mounting frame; 10-second drive member; 11-cam body; 12-electric heating plate; 13-bidirectional screw; 14-clamping plate; 15-groove; 16-threaded rod; 17-limit block; 18-knob; 19-energy storage battery body; 20-electric push rod; 21-mounting plate; 22-smoke sensor; 23-insulating ceramic ring; 24-test equipment body; 25-cross frame; 26-fire sprinkler; 27-sealed pipe; 28-solenoid valve; 29-high-pressure fire extinguisher; 30-exhaust pipe; 31-exhaust equipment; 32-air filter. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] With the continuous development of new energy technology, energy storage devices play a vital role in the field of energy storage and conversion. The common energy storage battery is lead-acid battery. With the rise of the new energy field, the demand for energy storage batteries is increasing. As the core component of the energy storage device, the performance of the energy storage battery is directly related to the reliability and safety of the entire energy storage system. Therefore, it is particularly important to conduct comprehensive and accurate performance testing of the energy storage battery. In the existing energy storage battery testing technology, the focus is mainly on the detection of its charging and discharging performance. The battery is usually placed on a fixed test platform and the battery voltage, current and other parameters are measured by connecting the test equipment. However, this test method has certain limitations. On the one hand, the battery is in a static state during the test and cannot simulate the dynamic working conditions that it may face in actual applications, such as bumps and vibrations during vehicle driving. This may lead to deviations between the test results and the actual use. On the other hand, the test environment is relatively simple, and there is a lack of performance evaluation of the battery under extreme conditions such as high temperature. These extreme conditions are likely to occur during the use of the battery, and once they occur, they may cause serious safety accidents.

[0029] In view of this, see Figures 1 to 10 The charge and discharge test device provided in the embodiment of the present invention includes a test protection box 1, a drive component and a test component; a support component is installed in the test protection box 1, and an electric heating plate 12 is embedded in the upper surface of the support component, and the support component is used to place the energy storage battery body 19; the drive component includes a first drive member 3 and a second drive member 10, and the first drive member 3 passes through the side wall of the test protection box 1 and is transmission-connected to the support component to drive the support component to move horizontally; the second drive member 10 is located in the test protection box 1 and is transmission-connected to the support component to drive the support component to rise and fall vertically; the test component includes a test equipment body 24, the test equipment body 24 is installed on the top wall of the test protection box 1, and the connection part of the test equipment body 24 is used to electrically connect with the electrode of the energy storage battery body 19.

[0030] Specifically, the test protection box 1 is equipped with a protective sealing door 2, two protective sealing doors 2 are provided, and the two protective sealing doors 2 are hinged to the front side wall of the test protection box 1. The test protection box 1 and the protective sealing door 2 provide sealing protection for the energy storage battery body 19 tested therein, so as to improve the safety of the operator when testing inside the energy storage battery body 19.

[0031] The charge and discharge test device first uses the test equipment body 24 of the test assembly to electrically connect the electrodes of the energy storage battery body 19 to measure the voltage and current of the charge and discharge process of the energy storage battery body 19; and uses the first driving member 3 to horizontally move the support assembly, and uses the second driving member 10 to vertically vibrate the support assembly, so as to achieve horizontal movement and vertical vibration of the energy storage battery body 19 fixed on the support assembly, thereby realizing the charge and discharge test of the state of the energy storage battery body 19 when simulating actual application; the upper surface of the support assembly is embedded with an electric heating plate 12, which further simulates the environment in which the energy storage battery body 19 is located during actual application, thereby realizing the charge and discharge test of the state of the energy storage battery body 19 when simulating actual application. The charging and discharging test device simulates the performance test of the energy storage battery body 19 in a bumpy state after being installed on the vehicle through the driving component, which can more truly reflect the performance of the energy storage battery body 19 under dynamic conditions, avoiding the problem of large deviation between the test results and the actual use caused by the traditional static test method; the performance test of the energy storage battery body 19 under high temperature conditions is simulated by the electric heating plate 12, which is helpful to comprehensively evaluate the charging and discharging performance and safety performance of the energy storage battery body 19 under different temperature conditions, and provide more accurate performance data support for the actual application of the energy storage battery body 19. In addition, the charging and discharging test device can not only detect the charging and discharging performance of the energy storage battery body 19, but also perform tests while simulating dynamic and high temperature conditions. By connecting the test equipment body 24 with the electrodes of the energy storage battery body 19, the voltage and current and other parameter changes of the energy storage battery body 19 under complex working conditions can be monitored in real time, and a comprehensive performance evaluation can be achieved. It can more comprehensively understand the performance of the energy storage battery body 19 in various situations that may be encountered in actual use, and provide a strong data basis for the design optimization, quality control and safety warning of the energy storage battery body 19.

[0032] The structure and shape of the charge and discharge test device are described in detail below: In an optional scheme of an embodiment of the present invention, the supporting assembly includes a movable frame 5 and a placement plate 8, and the placement plate 8 is located above the movable frame 5; the first driving member 3 is transmission-connected to the movable frame 5 to drive the movable frame 5 to move in an orderly or disorderly manner; the second driving member 10 is installed on the movable frame 5 and transmission-connected to the placement plate 8 to drive the placement plate 8 to rise and fall in an orderly or disorderly manner.

[0033] Specifically, the movable frame 5 is a frame structure with a hollowed-out middle portion, and the hollowed-out portion is used to allow the second driving member 10 to pass through the movable frame 5 and connect with the placement plate 8. Orderly movement means that the movable frame 5 moves in a certain regular order; disorderly movement means that the movable frame 5 moves in a disorderly and irregular manner. Similarly, orderly lifting and lowering means that the placement plate 8 lifts and lowers in a certain regular manner; disorderly lifting and lowering means that the placement plate 8 lifts and lowers in a disorderly and irregular manner.

[0034] The supporting assembly includes a movable frame 5 and a placement plate 8 . The energy storage battery body 19 is located on the placement plate 8 . The placement plate 8 supports and fixes the energy storage battery body 19 . The movable frame 5 fixes the second driving member 10 .

[0035] In an optional solution of the embodiment of the present invention, the movable frame 5 is slidably matched with the test protection box 1 .

[0036] Specifically, mounting frames 9 are fixedly mounted on inner walls on both sides of the movable frame 5 , and the second driving member 10 is fixed to the mounting frames 9 .

[0037] The movable frame 5 is slidably matched with the bottom wall of the test protection box 1 , so that the movable frame 5 can move relative to the test protection box 1 .

[0038] In an optional solution of the embodiment of the present invention, the first driving member 3 is connected to the supporting assembly via a reciprocating screw 4 .

[0039] Specifically, the first driving member 3 is set as a motor, and the output end of the motor is connected to a reciprocating screw 4; the surface of the reciprocating screw 4 is threadedly sleeved with a movable frame 5. Furthermore, the bottom wall of the movable frame 5 is provided with a first connecting hole and a second connecting hole, and a guide rod is installed in the test protection box 1, and the guide rod is arranged parallel to the reciprocating screw 4 at intervals; the reciprocating screw 4 is threadedly connected to the first connecting hole, and the second connecting hole is slidably matched with the guide rod. The guide rod is slidably matched with the second connecting hole to achieve a guiding effect.

[0040] The first driving member 3 drives the reciprocating screw 4 to rotate, and the reciprocating screw 4 drives the movable frame 5 to move back and forth, thereby realizing the horizontal movement of the movable frame 5. The rotation speed of the first driving member 3 can be set to a fixed rotation speed to realize the orderly movement of the movable frame 5; the rotation speed of the first driving member 3 is set to be variable, and the change has no special regularity, thereby realizing the disorderly movement of the movable frame 5.

[0041] In an optional scheme of an embodiment of the present invention, the second driving member 10 is connected to the placing plate 8 through a cam body 11; the second driving member 10 is connected to the cam body 11, and the outer wall of the cam body 11 is in contact with the bottom wall of the placing plate 8, and the cam body 11 drives the placing plate 8 to rise and fall in an orderly or disorderly manner.

[0042] Specifically, the second driving member 10 is configured as a motor, which is installed on the mounting frame 9 and the output end is connected to the middle part of the cam body 11, so that the motor drives the cam body 11 to rotate around the axis of the motor output end; when the cam body 11 rotates, because the cam body 11 is an irregular shape as a whole, and the outer wall of the cam body 11 fits with the bottom plate of the placement plate 8, the distance between the axis of the motor output end and the placement plate 8 is changed, thereby driving the placement plate 8 to rise and fall.

[0043] The cam body 11 is used to transmit the power of the electrode to the placement plate 8, which has a simple structure and is easy to install and disassemble.

[0044] In an optional solution of the embodiment of the present invention, the second driving member 10 has two driving ends, and two cam bodies 11 are provided, and the two cam bodies 11 are respectively connected to the two driving ends.

[0045] Specifically, the second driving member 10 is configured as a dual-axis motor, and the two driving ends of the dual-axis motor are respectively connected to the two cam bodies 11. In this embodiment, the reciprocating screw 4 extends along the length direction of the test protection box 1, and the two cam bodies 11 are spaced apart along the width direction of the test protection box 1.

[0046] Two cam bodies 11 are provided to achieve stable lifting and lowering of the placement plate 8 and prevent the placement plate 8 from tilting.

[0047] In an optional solution of the embodiment of the present invention, when the placement plate 8 is raised and lowered in an orderly manner, the protrusions of the two cam bodies 11 are located opposite to each other.

[0048] Specifically, the two cam bodies 11 have the same structure and shape and the same installation direction, so that the two cam bodies 11 rotate simultaneously when driven by a dual-axis motor, and the raised positions of the two cam bodies 11 are simultaneously in contact with the placement plate 8; the two cam bodies 11 drive the placement plate 8 to rise and fall according to the same rule, thereby achieving orderly lifting and lowering of the placement plate 8.

[0049] In an optional solution of the embodiment of the present invention, when the placement plate 8 is raised and lowered in a disorderly manner, the protrusions of the two cam bodies 11 are arranged at staggered positions.

[0050] Specifically, the two cam bodies 11 have the same structure and shape, but are installed in different directions, so that the two cam bodies 11 rotate simultaneously when driven by a dual-axis motor, but the raised positions of the two cam bodies 11 fit with the placement plate 8 at different times; the two cam bodies 11 drive the placement plate 8 to rise and fall according to different rules, thereby achieving disordered lifting of the placement plate 8.

[0051] In an optional solution of the embodiment of the present invention, the support assembly further includes a step guide rod 6, one end of which is connected to the placement plate 8, and the other end of which passes through the movable frame 5 and is provided with a limiting protrusion.

[0052] Specifically, the top end of the step guide rod 6 is fixedly connected to the placement plate 8 , and a limiting protrusion is provided at the bottom end; the limiting protrusion is used to prevent the step guide rod 6 from being separated from the movable frame 5 .

[0053] The step guide rod 6 is slidably matched with the movable frame 5 to guide the movement direction of the placement plate 8.

[0054] In an optional solution of the embodiment of the present invention, the step guide rod 6 is sleeved with a return spring 7, one end of the return spring 7 is connected to the bottom wall of the movable frame 5, and the other end is connected to the limiting protrusion.

[0055] Specifically, the cam body 11 is driven to rotate by a dual-axis motor, and the raised position of the cam body 11 contacts the bottom wall of the placement plate 8, thereby causing the placement plate 8 and the step guide rod 6 to move vertically upward, thereby compressing the reset spring 7. As the cam body 11 rotates, the placement plate 8 moves vertically downward under the action of the gravity of the placement plate 8 and the elastic force of the reset spring 7, thereby achieving vertical vibration of the energy storage battery body 19 on the top of the placement plate 8.

[0056] The return spring 7 is sleeved on the outer circumference of the step guide rod 6 to achieve the function of driving the placement plate 8 to return to its original position.

[0057] In an optional solution of the embodiment of the present invention, a plurality of step guide rods 6 are provided, and each step guide rod 6 is sleeved with a return spring 7 .

[0058] Specifically, a plurality of step guide rods 6 are arranged at intervals along the circumferential direction of the placement plate 8 .

[0059] Each step guide rod 6 is sleeved with a return spring 7 to guide the movement direction of the placement plate 8 and drive the placement plate 8 to fall; and because there are multiple return springs 7, the force required for each return spring 7 can be reduced.

[0060] In an optional solution of the embodiment of the present invention, when the placement plate 8 is raised and lowered in an orderly manner, the elastic coefficient of each return spring 7 is the same, so that the placement plate 8 falls evenly.

[0061] In an optional solution of the embodiment of the present invention, when the placement plate 8 is raised and lowered disorderly, the elastic coefficient of at least one return spring 7 is different from the elastic coefficients of the other return springs 7 .

[0062] Specifically, the elastic coefficients of the reset spring 7 are different, and the reset effects are different under the same compression condition, so that the placement plate 8 can fall irregularly, that is, the placement plate 8 can be raised and lowered in a disordered manner.

[0063] In an optional solution of the embodiment of the present invention, a mounting groove is provided on the top wall of the placement plate 8, and the electric heating plate 12 is installed in the mounting groove.

[0064] Specifically, the top wall of the placement plate 8 is recessed downward to form a mounting groove.

[0065] The mounting groove enables the electric heating plate 12 to be embedded in the top wall of the supporting assembly, thereby preventing the electric heating plate 12 from occupying the internal space of the test protection box 1 .

[0066] In an optional solution of the embodiment of the present invention, the inner wall of the installation groove and the top of the electric heating plate 12 are both covered with a high-temperature resistant ceramic plate.

[0067] Specifically, a high temperature resistant ceramic plate is provided on the inner wall of the mounting groove and above the electric heating plate 12 .

[0068] The high temperature resistant ceramic plate is used to isolate the electric heating plate 12 to avoid safety problems caused by overheating.

[0069] In an optional scheme of an embodiment of the present invention, the test assembly includes an electric push rod 20 and a mounting plate 21. The electric push rod 20 is installed at the top of the test protection box 1 and passes through the top wall of the test protection box 1 to be connected to the mounting plate 21; the mounting plate 21 has a through groove, and an insulating ceramic ring 23 is slidably installed in the through groove. The test equipment body 24 is installed on the top surface of the test protection box 1 and in the insulating ceramic ring 23.

[0070] Specifically, the function of the through groove is that when the energy storage battery body 19 moves horizontally, the test equipment body 24 in the insulating ceramic ring 23 can correspond to the electrodes of the energy storage battery body 19 to achieve electrical connection for detection.

[0071] When testing the energy storage battery body 19, the energy storage battery body 19 is placed above the placement plate 8, and the mounting plate 21 is driven vertically by the electric push rod 20. The insulating ceramic ring 23 slides in the through groove on the surface of the mounting plate 21, so that the electrodes of the test equipment body 24 and the energy storage battery body 19 can be adjusted to correspond, thereby connecting the connecting part of the test equipment body 24 and the electrode of the energy storage battery body 19.

[0072] In an optional solution of the embodiment of the present invention, a smoke sensor 22 and a fire sprinkler 26 are installed in the test protection box 1 , and the smoke sensor 22 is signal-connected to the fire sprinkler 26 .

[0073] Specifically, a smoke sensor 22 is fixedly installed on the inner top surface of the test protection box 1, and a cross frame 25 is fixedly provided on the movable part of the electric push rod 20. At least two groups of fire sprinklers 26 are fixedly plugged on the cross frame 25, and a sealed pipe 27 is fixedly installed on the input end of the fire sprinkler 26. A high-pressure fire extinguishing tank 29 is fixedly connected to the output end of the sealed pipe 27. The high-pressure fire extinguishing tank 29 is fixedly installed on the rear side wall of the test protection box 1 through the mounting frame 9, and a solenoid valve 28 is arranged on the sealed pipe 27. When the smoke sensor 22 detects smoke in the test protection box 1, the solenoid valve 28 is opened to realize the fire extinguishing material in the high-pressure fire extinguishing tank 29 through the thread. The rod 16 is sprayed out to extinguish the fire after the energy storage battery body 19 detects fire; when the energy storage battery body 19 explodes or spontaneously combusts during detection; after the smoke sensor 22 on the top of the inner side of the test protection box 1 detects the smoke inside the test protection box 1, the solenoid valve 28 is opened through the controller, so that the high-pressure fire extinguishing material in the high-pressure fire extinguishing tank 29 is introduced into the fire sprinkler 26 through the sealed pipe 27, and the fire extinguishing material is sprayed vertically downward to the top of the energy storage battery body 19 through the fire sprinkler 26, so as to extinguish the fire after the explosion or spontaneous combustion of the energy storage battery body 19, and avoid the spread of the energy storage battery body 19 after spontaneous combustion.

[0074] After the smoke sensor 22 on the top of the inner side of the test protection box 1 detects the presence of smoke inside the test protection box 1, the controller opens the solenoid valve 28, and the fire extinguishing material is sprayed vertically downward to the top of the energy storage battery body 19 through the fire sprinkler 26 to prevent the energy storage battery body 19 from spreading after spontaneous combustion.

[0075] In an optional scheme of an embodiment of the present invention, the charge and discharge test device also includes an exhaust duct 30 and an exhaust device 31. The input end of the exhaust duct 30 extends into the test protection box 1, and the output end is located outside the test protection box 1, and is equipped with an air filter 32; the exhaust device 31 is installed on the exhaust duct 30.

[0076] Specifically, an exhaust duct 30 is fixedly inserted into one side wall of the test protection box 1, and the exhaust duct 30 is connected to the interior of the test protection box 1, and an exhaust device 31 is arranged on the exhaust duct 30, and an air filter 32 is fixedly connected to the output end of the exhaust duct 30, and the interior of the air filter 32 is filled with filter material for filtering harmful gases after the energy storage battery body 19 catches fire. When the smoke sensor 22 detects the appearance of smoke in the test protection box 1, the exhaust device 31 is turned on through the controller; after the smoke sensor 22 at the top of the inner side of the test protection box 1 detects the appearance of smoke in the test protection box 1, the exhaust device 31 is turned on through the controller, and the exhaust device 31 is used to introduce the harmful gases in the test protection box 1 into the interior of the air filter 32 through the exhaust duct 30 through the exhaust device 31, and the harmful gases are filtered through the filter material filled in the air filter 32, and are discharged after filtering.

[0077] The exhaust device 31 allows the hazardous gas in the test protection box 1 to be introduced into the interior of the air filter 32 through the exhaust duct 30 , and the hazardous gas is filtered through the filter material filled in the air filter 32 .

[0078] In an optional solution of the embodiment of the present invention, the charge and discharge test device further includes a clamping assembly, which is installed on the top surface of the support assembly and is used to clamp the energy storage battery body 19.

[0079] Specifically, two-way screws 13 are rotatably inserted into the inner walls of both sides of the placement plate 8, and two sets of clamping plates 14 are provided on the surface threads of the two-way screws 13, and grooves 15 are provided on the facing surfaces of the clamping plates 14, and threaded rods 16 are movably inserted into both ends of the clamping plates 14, and the threaded rods 16 are located inside the grooves 15, and the ends of the threaded rods 16 are fixedly installed with limit blocks 17, and the surface threads of the threaded rods 16 are provided with knobs 18, and the knobs 18 are rotatably installed with the end faces of the grooves 15, and the surface of the limit blocks 17 is fixedly installed with light rods, and the light rods and the end faces of the clamping plates 14 are movably inserted; the energy storage battery body 19 is placed above the placement plate 8, and the clamping plates 14 are driven to rotate by the handle, By threading the bidirectional screw 13 and the clamping plate 14, the two groups of clamping plates 14 are moved laterally closer to each other, so that the energy storage battery body 19 placed on the top surface of the placement plate 8 is clamped by the two groups of clamping plates 14, and the knob 18 is rotated through the threaded sleeve of the knob 18 and the threaded rod 16, so that the threaded rod 16 drives the limit block 17 to move laterally, so that the distance between the two groups of corresponding limit blocks 17 is adjusted, so that the surface of the limit block 17 is closely fitted with the surface of the energy storage battery body 19, thereby achieving fixed clamping of the energy storage battery body 19, and fixing the energy storage battery body 19 on the top surface of the placement plate 8 to prevent the energy storage battery body 19 from tipping over due to vibration.

[0080] The energy storage battery body 19 placed on the top surface of the placement plate 8 is clamped by two sets of clamping plates 14, and the surface of the limit block 17 is tightly fitted with the surface of the energy storage battery body 19, thereby achieving fixed clamping of the energy storage battery body 19, and fixing the energy storage battery body 19 on the top surface of the placement plate 8 to avoid the energy storage battery body 19 from tipping over due to vibration, thereby ensuring the stability and accuracy of the test process.

[0081] The advantages of the charge and discharge test device are described in detail below: 1. The reciprocating screw 4 is driven to rotate by a motor, so that the movable frame 5 moves back and forth along the axial direction of the reciprocating screw 4. At the same time, the dual-axis motor drives the cam body 11 to rotate, and the raised position of the cam body 11 contacts the bottom surface of the placement plate 8, so that the placement plate 8 and the step guide rod 6 move vertically upward to compress the reset spring 7. As the cam body 11 rotates, the placement plate 8 moves vertically downward under the action of gravity and the elastic force of the reset spring 7, thereby achieving left-right and vertical vibration of the energy storage battery body 19 on the top of the placement plate 8. This vibration simulates the bumpy working conditions of the energy storage battery after it is installed on the vehicle during driving, and can more truly reflect the performance of the battery under dynamic conditions, avoiding the problem of large deviation between the test results and actual usage caused by the traditional static test method; 2. During the test, the electric heating plate 12 can heat the energy storage battery body 19 placed on the placement plate 8 to simulate the working state of the battery in a high temperature environment. This helps to comprehensively evaluate the charging and discharging performance and safety performance of the energy storage battery under different temperature conditions, and provide more accurate performance data support for the actual application of the battery; 3. It can not only detect the charging and discharging performance of the energy storage battery body 19, but also perform tests while simulating dynamic and high temperature working conditions. By connecting the test equipment body 24 to the electrodes of the energy storage battery body 19, it can monitor the changes in parameters such as voltage and current of the battery under complex working conditions in real time. This comprehensive performance evaluation method can more comprehensively understand the performance of the energy storage battery in various situations that may be encountered in actual use, and provide a strong basis for battery design optimization, quality control and safety warning; 4. A smoke sensor 22 is fixedly installed on the inner top surface of the test protection box 1, which can monitor whether there is smoke in the box in real time. Once smoke is detected, it means that the energy storage battery body 19 may be in a dangerous situation such as fire. At this time, the solenoid valve 28 is opened by the controller, and the high-pressure fire extinguishing material in the high-pressure fire extinguishing tank 29 is introduced into the fire sprinkler 26 through the sealed pipe 27. The fire sprinkler 26 sprays the fire extinguishing material vertically downward to the energy storage battery body 19, so as to put out the fire in time and effectively, prevent the fire from spreading, and minimize the loss caused by the fire; 5. When the smoke sensor 22 detects smoke in the test protection box 1, the exhaust device 31 is turned on through the controller, and the exhaust duct 30 is connected to the inside of the test protection box 1. The exhaust device 31 introduces the harmful gas in the test protection box 1 into the inside of the air filter 32 through the exhaust duct 30. The inside of the air filter 32 is filled with filter material specially used to filter the harmful gas generated after the energy storage battery body 19 catches fire. The filtered gas is then discharged, which can effectively prevent the accumulation of harmful gas in the test protection box 1, ensure the breathing safety of the operator, and also reduce the pollution to the atmospheric environment; 6. The clamping plate 14 is driven to rotate by the handle, and the bidirectional screw 13 and the clamping plate 14 are threadedly inserted, so that the two groups of clamping plates 14 move laterally and approach each other to clamp the energy storage battery body 19, and the knob 18 is rotated. The knob 18 and the threaded rod 16 are threadedly sleeved, and the threaded rod 16 drives the limit block 17 to move laterally, and the distance between the two corresponding limit blocks 17 is adjusted so that the surface of the limit block 17 is closely fitted with the surface of the energy storage battery body 19, thereby achieving fixed clamping of the energy storage battery body 19, which can ensure that the energy storage battery body 19 will not tip over or shift during the test process, especially during the vibration simulation test, thereby ensuring the stability and accuracy of the test, avoiding the test interference caused by the change of the battery position, and making the test data more reliable.

[0082] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0083] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A charge and discharge test device, characterized in that: include: Test protection boxes, drive components and test components; A support assembly is installed in the test protection box, an electric heating plate is embedded on the upper surface of the support assembly, and the support assembly is used to place the energy storage battery body; The driving assembly includes a first driving member and a second driving member, wherein the first driving member passes through the side wall of the test protection box and is transmission-connected to the support assembly to drive the support assembly to move horizontally; the second driving member is located in the test protection box and is transmission-connected to the support assembly to drive the support assembly to move vertically; The test assembly comprises a test device body, the test device body is mounted on the top wall of the test protection box, and the connection part of the test device body is used to be electrically connected to the electrode of the energy storage battery body.

2. The charge and discharge test device according to claim 1, characterized in that: The support assembly includes a movable frame and a placement plate, wherein the placement plate is located above the movable frame; The first driving member is in driving connection with the movable frame to drive the movable frame to move in an orderly or disorderly manner; The second driving member is installed on the movable frame and is in driving connection with the placement plate to drive the placement plate to rise and fall in an orderly or disorderly manner.

3. The charge and discharge test device according to claim 2, characterized in that: The second driving member is connected to the placement plate via a cam body; The second driving member is connected to the cam body, and the outer wall of the cam body is in contact with the bottom wall of the placement plate. The cam body drives the placement plate to rise and fall in an orderly or disorderly manner.

4. The charge and discharge test device according to claim 3, characterized in that: The second driving member has two driving ends, and the cam bodies are provided with two, and the two cam bodies are respectively connected to the two driving ends.

5. The charge and discharge test device according to claim 4, characterized in that: When the placement plate is raised or lowered in a disorderly manner, the protrusions of the two cam bodies are arranged at staggered positions.

6. The charge and discharge test device according to claim 3, characterized in that: The support assembly also includes a step guide rod, one end of which is connected to the placement plate, and the other end of which passes through the movable frame and is provided with a limiting protrusion.

7. The charge and discharge test device according to claim 6, characterized in that: The step guide rod sleeve is provided with a reset spring, one end of the reset spring is connected to the bottom wall of the movable frame, and the other end is connected to the limiting protrusion.

8. The charge and discharge test device according to claim 7, characterized in that: A plurality of step guide rods are provided, and each of the step guide rods is sleeved with the return spring.

9. The charge and discharge test device according to claim 8, characterized in that: When the placement plate is raised or lowered in a disorderly manner, the elastic coefficient of at least one of the return springs is different from the elastic coefficients of the other return springs.

10. The charge and discharge test device according to any one of claims 2 to 9, characterized in that: The top wall of the placement plate is provided with a mounting groove, and the electric heating plate is installed in the mounting groove.

11. The charge and discharge test device according to claim 10, characterized in that: The inner wall of the installation groove and the top of the electric heating plate are both covered with high temperature resistant ceramic plates.

12. The charge and discharge test device according to any one of claims 1 to 9, characterized in that: The test assembly includes an electric push rod and a mounting plate, wherein the electric push rod is mounted on the top of the test protection box and passes through the top wall of the test protection box to be connected to the mounting plate; The mounting plate has a through slot, an insulating ceramic ring is slidably mounted in the through slot, and the testing device body is mounted on the top surface of the testing protection box and in the insulating ceramic ring.

13. The charge and discharge test device according to claim 1, characterized in that: A smoke sensor and a fire sprinkler are installed in the test protection box, and the smoke sensor is connected to the fire sprinkler by signal.

14. The charge and discharge test device according to claim 1, characterized in that: The charging and discharging test device further includes an exhaust duct and an exhaust device, wherein the input end of the exhaust duct extends into the test protection box, the output end is located outside the test protection box, and an air filter is installed; The air extraction device is installed on the air extraction duct.

15. The charge and discharge test device according to claim 1, characterized in that: The charge and discharge test device also includes a clamping assembly, which is installed on the top surface of the support assembly and is used to clamp the energy storage battery body.

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