Testing device

Abstract

The embodiment of the utility model provides a testing device. The testing device comprises a bearing table, a heating source, a controller and a detection piece. The bearing table is used for bearing batteries. The heating source is located on one side of the bearing table, and the heating source is configured to heat at least one side of the battery when the bearing table bears the battery. The controller is in signal connection with the heating source and used for controlling the heating temperature of the heating source. The detection member is used for detecting the charging and discharging current and / or the charging and discharging voltage of the battery. According to the scheme, the heat resistance of the battery can be tested, and the use reliability of the battery can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery production, in particular to a testing device. BACKGROUND

[0002] Energy saving and emission reduction is the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy saving and environmental protection advantages. For electric vehicles, battery technology is an important factor for the development thereof.

[0003] In the development of battery technology, how to improve the accuracy of battery heat resistance testing and improve the reliability of battery use is an urgent technical problem in battery technology. UTILITY MODEL CONTENT

[0004] The application aims to provide a testing device which can improve the accuracy of battery heat resistance testing and improve the reliability of battery use.

[0005] The application is achieved by the following technical scheme:

[0006] The application provides a testing device, which comprises a bearing table, a heat source, a controller and a detection piece. The bearing table is used to bear the battery. The heat source is located on the side of the bearing table, and the heat source is configured to heat at least one side of the battery when the bearing table bears the battery. The controller is in signal connection with the heat source, and the controller is used to control the heating temperature of the heat source. The detection piece is used to detect the charging and discharging current and / or the charging and discharging voltage of the battery.

[0007] The technical scheme of the embodiment of the application heats the battery borne by the bearing table through the heat source, the controller controls the heating temperature of the heat source, and the detection piece detects the charging and discharging current and / or the charging and discharging voltage of the battery. When the charging and discharging current and / or the charging and discharging voltage detected by the detection piece is lower than the rated current or the rated voltage of the battery, it indicates that the battery cannot work normally at this temperature. The temperature value controlled by the controller and the detection information of the detection piece can more accurately test the highest temperature at which the battery can work normally, thereby improving the accuracy of battery heat resistance testing. When the battery is used, the temperature range at which the battery can work normally can be more accurately indicated in advance, so that the user can improve the temperature of the use environment of the battery in advance, reduce the risk of affecting the use of the battery due to the temperature being too high, and improve the reliability of the use of the battery.

[0008] In some embodiments, the heat source comprises a first sub-heat source and a second sub-heat source, the first sub-heat source and the second sub-heat source are arranged at intervals, and the heat transfer direction of the first sub-heat source is different from the heat transfer direction of the second sub-heat source, so as to heat the two adjacent sides of the battery.

[0009] The technical scheme of the embodiment of the application can accurately test the maximum temperature at which the battery can normally work, reduce the risk of affecting the use of the battery due to excessively high temperature, and improve the reliability of the use of the battery.

[0010] In some embodiments, the testing device further comprises a temperature detector configured to detect the temperature of the surface of the battery being heated.

[0011] The technical scheme of the embodiment of the application can accurately test the maximum temperature at which the battery can normally work, reduce the risk of affecting the use of the battery due to excessively high temperature, and improve the reliability of the use of the battery.

[0012] In some embodiments, the temperature detector comprises an infrared temperature sensor.

[0013] The technical scheme of the embodiment of the application can accurately test the maximum temperature at which the battery can normally work, reduce the risk of affecting the use of the battery due to excessively high temperature, and improve the reliability of the use of the battery.

[0014] In some embodiments, the temperature detector comprises a surface thermocouple and a heat insulation layer, the surface thermocouple is configured to be attached to the surface of the battery being heated, and the heat insulation layer is arranged between the surface thermocouple and the heat source.

[0015] The technical scheme of the embodiment of the application can accurately test the maximum temperature at which the battery can normally work, reduce the risk of affecting the use of the battery due to excessively high temperature, and improve the reliability of the use of the battery.

[0016] In some embodiments, the testing device further comprises a first support, and the bearing table is movably arranged in the first support along a first direction, wherein the first direction is parallel to the direction of gravity.

[0017] The technical scheme of the embodiment of the application can accurately test the maximum temperature at which the battery can normally work, reduce the risk of affecting the use of the battery due to excessively high temperature, and improve the reliability of the use of the battery.

[0018] In some embodiments, the first support has a first track extending along the first direction, and the carrying table is in sliding fit with the first track. The testing device further comprises a first power member, and an output end of the first power member is connected with the carrying table to drive the carrying table to move along the first track.

[0019] The technical scheme of the embodiments of the present application adjusts the position of the battery in the first direction by driving the carrying table to move along the first track by the first power member, thereby facilitating the convenience and reliability of adjusting the position of the battery.

[0020] In some embodiments, the testing device further comprises a second support, and the heat source is movably arranged on the second support along the first direction.

[0021] The technical scheme of the embodiments of the present application movably arranges the heat source on the second support along the first direction, so that the position of the heat source can be adjusted in the first direction, the relative position of the heat source and the battery can be adjusted, and the heat source can better heat the surface of the battery when testing different sizes of batteries, thereby more accurately testing the highest temperature at which the battery can normally work, reducing the risk of affecting the use of the battery due to excessively high temperature, and facilitating the reliability of the use of the battery.

[0022] In some embodiments, the second support has a second track extending along the first direction, and the heat source is in sliding fit with the second track. The testing device further comprises a second power member, and an output end of the second power member is connected with the heat source to drive the heat source to move along the second track.

[0023] The technical scheme of the embodiments of the present application adjusts the position of the heat source in the first direction by driving the heat source to move along the second track by the second power member, thereby facilitating the convenience and reliability of adjusting the position of the heat source.

[0024] In some embodiments, a moving member is arranged below the second support, and the moving member is used to drive the second support to move along a second direction to approach or move away from the carrying table, and the second direction is perpendicular to the first direction.

[0025] The technical scheme of the embodiments of the present application adjusts the position of the heat source in the second direction by the moving member, so that the relative position of the heat source and the battery can be adjusted, and the heat source can better heat the surface of the battery when testing different sizes of batteries, thereby more accurately testing the highest temperature at which the battery can normally work, reducing the risk of affecting the use of the battery due to excessively high temperature, and facilitating the reliability of the use of the battery.

[0026] In some embodiments, the testing device further comprises an incubator, and the incubator has a containing cavity, and the carrying table and the heat source are located in the containing cavity.

[0027] The technical scheme of the embodiment of the application can reduce the influence of the temperature of the environment on the heat output of the heat source by locating the bearing table and the heat source in the containing cavity of the heat preservation box, can make the heat source better heat the surface of the battery, and thus can more accurately test the maximum temperature at which the battery can normally work, reduce the risk of affecting the use of the battery due to excessively high temperature, and help improve the reliability of the use of the battery and save the energy consumption of the heat output of the heat source.

[0028] In some embodiments, the testing device further comprises a blowing piece, which is arranged in the containing cavity and is used for blowing air to the bearing table.

[0029] The technical scheme of the embodiment of the application can more accurately simulate the working condition of the battery by arranging the blowing piece to blow air to the battery on the bearing table when the battery is normally used, such as when the battery is arranged on the chassis of a vehicle to supply power to the vehicle, so that the maximum temperature at which the battery can normally work can be more accurately tested, the risk of affecting the use of the battery due to excessively high temperature is reduced, and the reliability of the use of the battery is improved.

[0030] In some embodiments, the testing device further comprises a heat insulation cover, the inside of the heat insulation cover has a cavity with two open ends, one end of the heat insulation cover is in communication with the heat source, and the other end of the heat insulation cover is used to be connected with the surface of the battery to form a heat transmission channel.

[0031] The technical scheme of the embodiment of the application can reduce the diffusion of the heat output of the heat source by arranging the heat insulation cover to communicate the heat source and the surface of the battery, can make the heat source better heat the surface of the battery, can test the maximum temperature at which the battery can normally work, reduce the risk of affecting the use of the battery due to excessively high temperature, help improve the reliability of the use of the battery, and save the energy consumption of the heat output of the heat source.

[0032] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme of the embodiments of the application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 The schematic diagram of the testing device provided by some embodiments of the application is shown in the figure.

[0035] Figure 2 The installation schematic diagram of the temperature detector provided for some embodiments of the present application;

[0036] Figure 3 The installation schematic diagram of the temperature detector provided for some embodiments of the present application;

[0037] Figure 4 The schematic diagram of the first support provided for some embodiments of the present application;

[0038] Figure 5 The schematic diagram of the second support provided for some embodiments of the present application;

[0039] Figure 6 The installation schematic diagram of the moving part provided for some embodiments of the present application;

[0040] Figure 7 The installation schematic diagram of the incubator provided for some embodiments of the present application;

[0041] Figure 8 The installation schematic diagram of the heat shield provided for some embodiments of the present application;

[0042] Figure 9 The structural schematic diagram of the heat shield provided for some embodiments of the present application.

[0043] Figure: 1-test device; 10-bearing table; 20-heating source; 21-first sub-heating source; 22-second sub-heating source; 30-controller; 40-detection part; 50-temperature detector; 51-infrared temperature sensor; 52-surface thermocouple; 53-heat insulation layer; 60-first support; 61-first track; 62-first power part; 70-second support; 71-second track; 72-second power part; 73-moving part; 80-incubator; 81-blowing part; 82-containing cavity; 90-heat shield; 91-cavity; 2-battery; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, all terms used in disclosing the application, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms used in the description of the present application and its

[0046] Reference throughout this application to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, nor are they necessarily all mutually exclusive embodiments.

[0047] In the description of the application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "attachment" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0048] The term "and / or" in the application is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the application generally represents that the front and rear associated objects have an "or" relationship.

[0049] "Multiple" appearing in the application means two or more (including two), and similarly, "more" means two or more (including two), and "multiple pieces" means two or more pieces (including two pieces).

[0050] In some embodiments, the battery can be a battery pack, which includes a box body and battery cells, and the battery cells or battery modules are accommodated in the box body.

[0051] In some embodiments, the box body can be part of the chassis structure of the vehicle. For example, part of the box body can be at least part of the ground portion of the vehicle, or part of the box body can be at least part of the cross beam and longitudinal beam of the vehicle.

[0052] In some embodiments, the battery can be an energy storage device. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0053] In the embodiments of the present application, the battery cell can be a secondary battery, which refers to a battery cell that can be activated by charging after discharging.

[0054] The battery cell can be, but is not limited to, a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc.

[0055] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell, or a battery cell of other shapes, the prismatic battery cell includes a square cell, a blade cell, a multi-prismatic battery, for example, a hexagonal prism battery, etc., and the embodiments of the present application are not particularly limited.

[0056] At present, from the development of market situation, the battery has been widely used in electric bicycles, electric motorcycles, electric vehicles, etc. Electric vehicles, as well as electric tools, unmanned aerial vehicles, energy storage equipment and many other fields. With the continuous expansion of the field of battery use, the demand for its market is also increasing.

[0057] The development of battery technology needs to consider many design factors, such as energy density, cycle life, discharge capacity, charge-discharge rate, etc. In addition, with the change of environmental conditions and / or internal conditions of the battery, the reliability of the battery in use is also one of the key factors to be considered.

[0058] When the battery is shipped, the nameplate of the battery shipped usually indicates the temperature range of the battery working, so that the user can refer to it when using the battery.

[0059] However, the temperature range on the nameplate of the battery shipped is generally roughly estimated by the tolerance temperature of the material of the battery (such as the material of the battery box, the material of the pole piece), which deviates from the actual temperature range that the battery can normally work. Especially when the battery is applied to a vehicle, such as a hybrid vehicle, the exhaust pipe of the vehicle is close to the battery, so that the working temperature of the battery is high, and the accuracy of the temperature range on the nameplate of the battery shipped is difficult to meet the needs of the user, that is, the accuracy of the temperature range of the battery working normally indicated on the nameplate of the battery shipped is poor, thereby making the reliability of the battery in use poor.

[0060] Based on the above considerations, in order to solve the problem that the temperature range accuracy on the battery factory nameplate is poor, thereby affecting the reliability of the battery use. The application provides a test device, the test device includes a bearing table, a heat source, a controller and a detection piece. The bearing table is used to carry the battery. The heat source is located on the side of the bearing table, and the heat source is configured to heat at least one side of the battery when the bearing table carries the battery. The controller is signal connected with the heat source, and the controller is used to control the heating temperature of the heat source. The detection piece is used to detect the charge and discharge current and / or charge and discharge voltage of the battery.

[0061] The battery carried by the bearing table is heated by the heat source, the controller controls the heating temperature of the heat source, and the charge and discharge current and / or charge and discharge voltage of the battery is detected by the detection piece. When the charge and discharge current and / or charge and discharge voltage detected by the detection piece is lower than the rated current or rated voltage of the battery, it indicates that the battery cannot work normally at this temperature. The temperature value controlled by the controller and the detection information of the detection piece can accurately test the highest temperature at which the battery can work normally, thereby improving the accuracy of the battery heat resistance test. When the battery is used after leaving the factory, the temperature range at which the battery can work normally can be accurately indicated in advance, so that the user can improve the temperature of the battery use environment in advance, reduce the risk of affecting the use of the battery due to high temperature, and improve the reliability of the battery use.

[0062] The battery tested in the application can be used in an electric device to provide electric energy for the electric device. The electric device can be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric vehicle, a ship, a spacecraft, etc. Among them, the electric toy can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric plane toys, etc. The spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0063] Please refer to Figure 1 , Figure 1 The schematic diagram of the test device provided by some embodiments of the application is provided. The application provides a test device 1, which includes a bearing table 10, a heat source 20, a controller 30 and a detection piece 40. The bearing table 10 is used to carry the battery 2. The heat source 20 is located on the side of the bearing table 10, and the heat source 20 is configured to heat at least one side of the battery 2 when the bearing table 10 carries the battery 2. The controller 30 is signal connected with the heat source 20, and the controller 30 is used to control the heating temperature of the heat source 20. The detection piece 40 is used to detect the charge and discharge current and / or charge and discharge voltage of the battery 2.

[0064] In some embodiments, the battery 2 tested in the present application can be applied to a hybrid vehicle, which has both a motor and an engine. The battery 2 supplies power to the motor, so that the motor provides power to the vehicle, or the battery 2 supplies power to the engine, so that the engine provides power to the vehicle. The engine is usually arranged at the head of the vehicle, and the battery 2 is arranged at the bottom of the vehicle. The exhaust pipe of the engine is connected to the engine and extends to the tail of the vehicle. At this time, the exhaust pipe passes through the outer periphery of the battery 2. In order to improve the compactness of the vehicle structure, the exhaust pipe is usually in contact with at least one side of the battery 2. Because the gas in the exhaust pipe is at a high temperature, the surface temperature of the battery 2 is also high, which may affect the normal operation (charging and discharging) of the battery 2. Therefore, the test device 1 of the present application is needed to test the maximum temperature at which the battery 2 can operate normally, so that the vehicle manufacturer can obtain the temperature range at which the battery 2 can operate normally in advance, thereby improving the arrangement and structure of the exhaust pipe and reducing the risk of affecting the use of the battery 2 due to high temperature, thereby improving the reliability of the use of the battery 2.

[0065] In some embodiments, the bearing table 10 can be a plate, which has a complete bearing surface, and the battery 2 is arranged on the bearing surface.

[0066] In some embodiments, the bearing table 10 can be a frame structure, and the battery 2 is arranged on the frame structure. The frame structure has one or more hollow parts, and the size of each hollow part is smaller than the size of the battery 2. The length and width of the hollow part can be smaller than any one of the length, height, and width of the battery 2, so as to reduce the risk of the battery 2 falling from the hollow part.

[0067] In some embodiments, the bearing table 10 can be a frame structure. The orthogonal projection of the frame structure can be a rectangle. The middle of the frame structure forms a rectangular hollow part. The battery 2 is arranged on the frame structure, and the four surrounding frames of the frame structure support the battery 2.

[0068] In some embodiments, the material of the bearing table 10 can be metal, such as copper, iron, aluminum, etc. The material of the bearing table 10 can also be hard plastic (polytetrafluoroethylene, polyphenylene sulfide, etc.) with a high melting point, concrete, etc.

[0069] In some embodiments, when the heating source 20 heats the battery 2, the heating can be non-contact heating. For example, the heating source 20 can be an infrared heater or a halogen lamp.

[0070] In some embodiments, when the heating source 20 heats the battery 2, the heating can be contact heating. For example, the heating source 20 can be a resistance sheet.

[0071] In some embodiments, the number of heat sources 20 can be multiple, and the multiple heat sources 20 can be located on one side of the bearing table 10 for heating the surface on one side of the battery 2.

[0072] In some embodiments, the number of heat sources 20 can be multiple, and a part of the multiple heat sources 20 can be located on one side of the bearing table 10 for heating the surface on one side of the battery 2. Another part of the multiple heat sources 20 can be located on the other side of the bearing table 10 for heating the surface on the other side of the battery 2. The two sides can be adjacent sides or opposite sides.

[0073] Similarly, in some embodiments, the number of heat sources 20 can be multiple, and the multiple heat sources 20 can heat each side of the battery 2 respectively.

[0074] In some embodiments, the controller 30 can be a computer host or other processor, and the controller 30 is signal connected with the heat source 20, and the connection mode can be cable connection, Bluetooth connection, wireless connection, etc.

[0075] In some embodiments, the controller 30 can have a display, which displays the temperature of the heat emitted by the heat source 20.

[0076] In some embodiments, the detection member 40 can be an ammeter or a Hall effect current sensor for detecting the charging and discharging current of the battery 2. Taking the ammeter as an example, when the battery is charging or discharging, the detection end of the ammeter is electrically connected with the total output positive or negative pole of the battery 2, and the instrument display value of the ammeter is the charging and discharging current of the battery 2.

[0077] In some embodiments, the detection member 40 can be a voltmeter for detecting the charging and discharging voltage of the battery 2. When the battery is charging or discharging, one detection end of the voltmeter is electrically connected with the total output positive pole of the battery 2, and the other detection end is electrically connected with the total output negative pole of the battery 2, and the instrument display value of the voltmeter is the charging and discharging voltage of the battery 2.

[0078] In some embodiments, the detection member 40 can be a battery test system with a built-in voltmeter and ammeter for detecting the charging and discharging current and voltage of the battery 2.

[0079] In some embodiments, the detection member 40 can also have an electric device, which is electrically connected with the battery 2 for discharging the battery 2. The electric device can be a driving motor, and the electric device can be connected with the battery 2, and the battery 2 supplies power to the driving motor, thereby simulating the working condition of discharging the battery 2.

[0080] In some embodiments, the detecting member 40 can also be provided with an energy storage device, which stores electric energy and is electrically connected with the battery 2 to charge the battery 2.

[0081] The following describes a testing method using the testing device 1:

[0082] The battery 2 is arranged on the bearing table 10 and is electrically connected with the detecting member 40.

[0083] The battery is charged or discharged. The controller 30 is started to heat the battery 2 at a first set temperature (e.g. 50℃) by the heat source 20. After a period of time (e.g. 10 min), the charging current, discharging current, charging voltage and discharging voltage of the battery 2 are detected by the detecting member 40 to determine whether the battery 2 is working normally. Usually, the nameplate of the battery will indicate the charging rated current, discharging rated current, charging rated voltage and discharging rated voltage of the battery. If the detection data matches the above data, the battery 2 is in a normal discharging working condition. Then the controller 30 is started to heat the battery 2 at a second set temperature (e.g. 60℃) by the heat source 20. After a period of time (e.g. 10 min), the charging current, discharging current, charging voltage and discharging voltage of the battery 2 are detected by the detecting member 40. If the detection data does not match any of the charging rated current, discharging rated current, charging rated voltage and discharging rated voltage, the first set temperature is the highest temperature at which the battery 2 can work normally.

[0084] It should be noted that the difference between the first set temperature and the second set temperature can be set to be small, so as to improve the accuracy of the highest temperature at which the battery 2 can work normally obtained by the test.

[0085] It should be noted that when detecting the discharging state of the battery 2, the battery 2 can be detected in the case of more power (e.g. more than 80%) and the case of less power (e.g. less than 40%).

[0086] In addition, the way to determine whether the battery 2 is in a normal working condition is not limited to the above way. The battery 2 is usually provided with a battery 2 monitoring system to monitor the charging and discharging current and voltage of the battery 2. If the charging and discharging current or voltage of the battery 2 is abnormal, a warning will be sent to the outside. Whether the battery 2 is in a normal working condition can be determined by whether the battery 2 sends a warning.

[0087] The technical scheme of the embodiment of the application heats the battery 2 borne by the bearing table 10 through the heat source 20, the controller 30 controls the heating temperature of the heat source 20, and the detection member 40 detects the charging and discharging current and / or the charging and discharging voltage of the battery 2; when the charging and discharging current and / or the charging and discharging voltage detected by the detection member 40 is lower than the rated current or the rated voltage of the battery 2, it indicates that the battery 2 cannot work normally at this temperature. The temperature value controlled by the controller 30 and the detection information of the detection member 40 can more accurately test the highest temperature at which the battery 2 can work normally, thereby improving the accuracy of the heat resistance test of the battery 2. When the battery 2 is used, the temperature range at which the battery 2 can work normally can be indicated in advance, so that the user can improve the temperature of the use environment of the battery 2 in advance, reduce the risk of affecting the use of the battery 2 due to the temperature being too high, and improve the reliability of the use of the battery 2.

[0088] Please refer to Figure 1 In some embodiments, the heat source 20 includes a first sub-heat source 21 and a second sub-heat source 22, the first sub-heat source 21 and the second sub-heat source 22 are arranged at intervals, and the heat transmission direction of the first sub-heat source 21 is different from the heat transmission direction of the second sub-heat source 22, so as to heat two adjacent sides of the battery 2.

[0089] In some embodiments, the number of the first sub-heat source 21 can be one or multiple.

[0090] In some embodiments, the number of the second sub-heat source 22 can be one or multiple.

[0091] In some embodiments, the number of the first sub-heat source 21 can be the same as or different from the number of the second sub-heat source 22.

[0092] In some embodiments, the structure of the first sub-heat source 21 can be the same as or different from the structure of the second sub-heat source 22.

[0093] In some embodiments, the heat transmission direction of the first sub-heat source 21 can be perpendicular to the heat transmission direction of the second sub-heat source 22.

[0094] It should be noted that the heat transmission direction can be a divergent direction, and the heat transmission direction perpendicular herein can mean that the first sub-heat source 21 heats one side of the battery 2, and the second sub-heat source 22 heats the other side of the battery 2, and the line connecting the first sub-heat source 21 and the one side of the battery 2 is perpendicular to the line connecting the second sub-heat source 22 and the other side of the battery 2.

[0095] In some embodiments, the first sub-heating source 21 can heat one side of the battery 2 in the longitudinal direction. The number of first sub-heating sources 21 can be five, and the five first sub-heating sources 21 can be arranged at intervals along the width direction of the battery 2. The second sub-heating source 22 can heat one side of the battery 2 in the width direction. The number of second sub-heating sources 22 can be five, and the five second sub-heating sources 22 can be arranged at intervals along the length direction of the battery 2.

[0096] As mentioned above, the battery 2 tested in this application can be used in hybrid vehicles. To improve the compactness of the vehicle structure, the exhaust pipe is typically in contact with two adjacent sides of the battery 2. The first and second sub-heating sources 21, 22 heat the adjacent sides of the battery 2, respectively, making the thermal simulation of the battery 2 more accurate.

[0097] According to the technical solution of the embodiment of the present application, when the battery 2 is in normal use, multiple sides may be heated. By setting the first sub-heating source 21 and the second sub-heating source 22 to heat different sides of the battery 2, the maximum temperature at which the battery 2 can operate normally can be tested more accurately, thereby reducing the risk of the battery 2 being affected by excessive temperature, and improving the reliability of the battery 2.

[0098] Please refer to Figure 1 , and refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the installation of a temperature detector provided in some embodiments of the present application. Figure 3 This is a schematic diagram of the installation of a temperature detector provided in some other embodiments of the present application. Figure 2 and Figure 3 In some embodiments, the test device 1 further includes a temperature detector 50 , which is used to detect the temperature of the heated surface of the battery 2 .

[0099] In some embodiments, the temperature detector 50 may be a contact temperature measuring device, such as a thermocouple, or a non-contact temperature measuring device, such as an infrared thermometer, a colorimetric pyrometer, or a fiber optic spectrometer.

[0100] In some embodiments, when heat source 20 heats battery 2, it may employ non-contact heating, meaning that heat source 20 is spaced apart from the surface of battery 2. When heat source 20 heats the surface of battery 2, the heat generated by heat source 20 may diffuse to the outside, causing the temperature of the heat generated by heat source 20 to be lower than the surface temperature of battery 2. This can lead to inaccurate maximum operating temperature of battery 2, as determined by numerical testing of heat source 20. Therefore, a temperature detector 50 is provided to detect the temperature of the heated surface of battery 2.

[0101] The technical scheme of the embodiment of the application can detect the temperature of the surface of the battery 2 through the temperature detector 50, can more accurately test the highest temperature at which the battery 2 can normally work, reduces the risk of affecting the use of the battery 2 due to excessively high temperature, and is beneficial to improving the reliability of the use of the battery 2.

[0102] Please refer to Figure 2 In some embodiments, the temperature detector 50 includes an infrared temperature sensor 51.

[0103] In some embodiments, the number of infrared temperature sensors 51 can be one or multiple.

[0104] In some embodiments, the infrared temperature sensor 51 can be arranged on the side of the heat source 20 in a bolted, glued or other manner.

[0105] In some embodiments, the number of infrared temperature sensors 51 can be multiple, five infrared temperature sensors 51 correspond to a heating area of one heat source 20, the heating area of the heat source 20 can be a square, four of the five infrared temperature sensors 51 detect the temperatures of the four corners of the square heating area, and the other infrared temperature sensor 51 detects the temperature of the center point of the square heating area, and the average value of the temperature values detected by the five infrared temperature sensors 51 is taken.

[0106] The technical scheme of the embodiment of the application can detect the temperature of the surface of the battery 2 through the temperature detector 50, can more accurately test the highest temperature at which the battery 2 can normally work, reduces the risk of affecting the use of the battery 2 due to excessively high temperature, and is beneficial to improving the reliability of the use of the battery 2.

[0107] Please refer to Figure 3 In some embodiments, the temperature detector 50 includes a surface thermocouple 52 and a heat insulation layer 53, the surface thermocouple 52 is used to be attached to the heated surface of the battery 2, and the heat insulation layer 53 is arranged between the surface thermocouple 52 and the heat source 20.

[0108] In some embodiments, the surface thermocouple 52 can be attached to the heated surface of the battery 2 by means of gluing or vacuum adsorption. The attachment position can be the center area of the heated surface, or can completely cover the heated surface of the battery 2.

[0109] In some embodiments, the material of the heat insulation layer 53 can be silica aerogel, polyurethane foam, glass wool or the like.

[0110] In some embodiments, the surface of the battery 2 is heated by the heat source 20, after a period of heating, the surface thermocouple 52 is attached to the heated surface of the battery 2, and the heat insulation layer 53 is arranged between the surface thermocouple 52 and the heat source 20, so that the heat of the heat source 20 is insulated by the heat insulation layer 53 and does not act on the surface thermocouple 52, reducing the direct effect of the heat emitted by the heat source 20 on the surface thermocouple 52, affecting the accuracy of the temperature value detected by the surface thermocouple 52.

[0111] The technical scheme of the embodiments of the application can detect the temperature of the surface of the battery 2 by arranging the surface thermocouple 52 and the heat insulation layer 53, which can more accurately test the maximum temperature at which the battery 2 can work normally, reduce the risk of affecting the use of the battery 2 due to excessive temperature, and improve the reliability of the use of the battery 2.

[0112] Please refer to Figure 1 , and refer to Figure 4 , Figure 4 The schematic diagram of the first support provided by some embodiments of the application is shown. In order to facilitate the display of the structure of the first support, Figure 4 part of the first support is hidden. In some embodiments, the test device 1 further comprises a first support 60, and the carrying table 10 is movably arranged in the first direction X on the first support 60, and the first direction X is parallel to the direction of gravity.

[0113] In some embodiments, the first direction can be represented by the direction indicated by the letter X in the figure.

[0114] In some embodiments, the first direction X can be parallel to the direction of gravity, and the first direction X can be parallel to the height direction of the battery 2.

[0115] In some embodiments, the material of the first support 60 can be metal, such as iron, alloy, etc.

[0116] In some embodiments, the carrying table 10 can be a rectangular plate, and the support can include four columns that are respectively matched with four corners of the carrying table 10.

[0117] In some embodiments, the carrying table 10 can move relative to the first support 60 in the first direction X. Different batteries 2 can have different sizes in the first direction X. When the size of the battery 2 in the first direction X is large, the carrying table 10 can be moved upward relative to the first support 60, so that the heat source 20 can better heat the surface of the battery 2. When the size of the battery 2 in the first direction X is small, the carrying table 10 can be moved downward relative to the first support 60, so that the heat source 20 can better heat the surface of the battery 2.

[0118] In some embodiments, the bearing table 10 can be movably arranged on the first support 60 in the following manner: the bearing table 10 is driven by a motor or a cylinder to slide on the first support 60. Alternatively, the bearing table 10 can be provided with a buckle, and the first support 60 is provided with a plurality of clamping grooves matched with the buckle, and the plurality of clamping grooves are arranged at intervals along the first direction X. When the bearing table 10 needs to be fixed, the buckle is matched with the clamping groove; when the bearing table 10 needs to be moved, the buckle is disengaged from the clamping groove, and the buckle is matched with the clamping groove after moving.

[0119] The technical scheme of the embodiments of the present application can adjust the position of the battery 2 in the first direction X by movably arranging the bearing table 10 on the first support 60 in the first direction X, so that the relative position of the battery 2 and the heat source 20 can be adjusted, and at the same time, the battery 2 of different sizes can be tested, and the heat source 20 can also better heat the surface of the battery 2, so that the highest temperature at which the battery 2 can work normally can be more accurately tested, the risk of affecting the use of the battery 2 due to excessive temperature is reduced, and the reliability of the use of the battery 2 is improved.

[0120] Please refer to Figure 1 and Figure 4 In some embodiments, the first support 60 has a first track 61 extending in the first direction X, and the bearing table 10 is in sliding cooperation with the first track 61. The test device 1 further comprises a first power member 62, and an output end of the first power member 62 is connected with the bearing table 10 to drive the bearing table 10 to move along the first track 61.

[0121] In some embodiments, the bearing table 10 can be provided with a guide wheel matched with the first track 61, and the guide wheel is in sliding cooperation with the first track 61.

[0122] In some embodiments, the first power member 62 can be a motor, a cylinder or the like.

[0123] In some embodiments, when the battery 2 needs to be moved, the first power member 62 drives the bearing table 10 to move in the first direction X, so that the bearing table 10 slides on the first track 61, thereby adjusting the position of the battery 2 in the first direction X.

[0124] The technical scheme of the embodiments of the present application can adjust the position of the battery 2 in the first direction X by movably arranging the bearing table 10 on the first support 60 in the first direction X, so that the relative position of the battery 2 and the heat source 20 can be adjusted, and at the same time, the battery 2 of different sizes can be tested, and the heat source 20 can also better heat the surface of the battery 2, so that the highest temperature at which the battery 2 can work normally can be more accurately tested, the risk of affecting the use of the battery 2 due to excessive temperature is reduced, and the reliability of the use of the battery 2 is improved.

[0125] Please refer to Figure 1 and Figure 5 , Figure 5 is a schematic view of the second support provided in some embodiments of the present application. In order to facilitate the display of the structure of the second support, Figure 5Part of the second support is hidden. In some embodiments, the testing device 1 further comprises a second support 70, and the heat source 20 is movably arranged on the second support 70 along the first direction X.

[0126] In some embodiments, the number of heat sources 20 can be multiple, and the second support 70 can comprise multiple columns, each of which corresponds to one heat source 20.

[0127] In some embodiments, part of the multiple heat sources 20 can heat one side surface of the battery 2, and the part of the multiple heat sources 20 can move on the second support 70 along the first direction X at the same time. Another part of the multiple heat sources 20 can heat another side surface of the battery 2, and the part of the multiple heat sources 20 can move on the second support 70 along the first direction X at the same time. Each of the multiple heat sources 20 can move on the corresponding second support 70 at the same time.

[0128] In some embodiments, the material of the second support 70 can be metal, such as iron, alloy, etc.

[0129] In some embodiments, the material of the second support 70 can be the same as or different from the material of the first support 60.

[0130] In some embodiments, the heat source 20 can move relative to the second support 70 along the first direction X. Different batteries 2 can have different sizes in the first direction X. When the size of the battery 2 in the first direction X is large, the heat source 20 can be moved upward relative to the second support 70, so that the heat source 20 can better heat the surface of the battery 2. When the size of the battery 2 in the first direction X is small, the heat source 20 can be moved downward relative to the second support 70, so that the heat source 20 can better heat the surface of the battery 2.

[0131] In some embodiments, the heat source 20 can be movably arranged on the second support 70 in the following manner: the heat source 20 is driven by a motor or a pneumatic cylinder to slide on the second support 70. Alternatively, the heat source 20 can be provided with a buckle, and the second support 70 can be provided with multiple buckle slots matched with the buckle, and the multiple buckle slots are arranged at intervals along the first direction X. When the heat source 20 needs to be fixed, the buckle is matched with the buckle slot; when the heat source 20 needs to be moved, the buckle is separated from the buckle slot, and the buckle is matched with the buckle slot after moving.

[0132] In some embodiments, the heat source 20 can be movably arranged on the second support 70 in the same manner as the bearing table 10 is movably arranged on the second support 70, or in a different manner.

[0133] The technical scheme of the embodiment of the application can adjust the position of the heat source 20 in the first direction X, can adjust the relative position of the heat source 20 and the battery 2, can test the battery 2 of different sizes, can make the heat source 20 better heat the surface of the battery 2, can more accurately test the highest temperature at which the battery 2 can normally work, reduces the risk that the battery 2 is affected by too high temperature, and is beneficial to improving the reliability of the battery 2.

[0134] Please refer to Figure 1 and Figure 5 In some embodiments, the second support 70 has a second track 71 extending in the first direction X, and the heat source 20 is in sliding fit with the second track 71. The testing device 1 further includes a second power member 72, and an output end of the second power member 72 is connected with the heat source 20 to drive the heat source 20 to move along the second track 71.

[0135] In some embodiments, the heat source 20 can be provided with a guide wheel cooperating with the second track 71, and the guide wheel is in sliding fit with the second track 71.

[0136] In some embodiments, the second power member 72 can be a motor, a cylinder or the like.

[0137] In some embodiments, when the battery 2 needs to be moved, the second power member 72 drives the heat source 20 to move in the first direction X, so that the heat source 20 slides on the second track 71, thereby adjusting the position of the heat source 20 in the first direction X.

[0138] It should be noted that when the first power member 62 drives the bearing table 10 to move along the first track 61, thereby adjusting the position of the battery 2 in the first direction X, the second power member 72 can drive the heat source 20 to move along the second track 71, thereby adjusting the position of the heat source 20 in the first direction X, so that the heat source 20 corresponds to the position of the battery 2.

[0139] The technical scheme of the embodiment of the application can adjust the position of the heat source 20 in the first direction X, can adjust the relative position of the heat source 20 and the battery 2, can test the battery 2 of different sizes, can make the heat source 20 better heat the surface of the battery 2, can more accurately test the highest temperature at which the battery 2 can normally work, reduces the risk that the battery 2 is affected by too high temperature, and is beneficial to improving the reliability of the battery 2.

[0140] Please refer to Figure 1 , and refer to Figure 6 , Figure 6The mounting diagram of the moving part is provided for some embodiments of the present application. In some embodiments, the second support 70 is provided below with a moving part 73, which is used to drive the second support 70 to move along the second direction Y to approach or move away from the bearing table 10, and the second direction Y is perpendicular to the first direction X.

[0141] In some embodiments, the second direction can be represented by the direction indicated by the letter Y in the figure. The second direction Y can be perpendicular to the first direction X, the second direction Y can be a horizontal direction, the second direction Y can be parallel to the length direction of the battery 2, or the second direction Y can be parallel to the width direction of the battery 2.

[0142] In some embodiments, the moving part 73 can be a roller, a pulley, etc.

[0143] In some embodiments, the sizes of different batteries 2 in the second direction Y can be different. When the size of the battery 2 in the second direction Y is large, the second support 70 can be driven by the moving part 73 to move along the second direction Y to move away from the bearing table 10, so that the heat source 20 is relatively far away from the battery 2, so that the heat source 20 can be relatively far away from the surface of the battery 2, and the heating precision can be controlled. When the size of the battery 2 in the second direction Y is small, the second support 70 can be driven by the moving part 73 to move along the second direction Y to move close to the bearing table 10, so that the heat source 20 is relatively close to the battery 2, so that the heat source 20 can be relatively close to the surface of the battery 2, and the heating precision can be controlled.

[0144] The technical scheme of the embodiments of the present application adjusts the position of the heat source 20 in the second direction Y by setting the moving part 73, so that the relative position of the heat source 20 and the battery 2 can be adjusted, and at the same time, the test on different sizes of the battery 2 can also be performed. The heat source 20 can also better heat the surface of the battery 2, so that the highest temperature at which the battery 2 can work normally can be more accurately tested, the risk of affecting the use of the battery 2 due to the temperature being too high is reduced, and the reliability of the use of the battery 2 is improved.

[0145] Please refer to Figure 7 , Figure 7 The mounting diagram of the incubator is provided for some embodiments of the present application. In some embodiments, the test device 1 further includes an incubator 80, and the incubator 80 has a containing cavity 82, and the bearing table 10 and the heat source 20 are located in the containing cavity 82.

[0146] In some embodiments, the inside of the incubator 80 can be provided with a heat source, and the temperature of the containing cavity 82 is maintained at a set temperature, such as 25℃, 30℃, etc., to simulate the temperature of the use condition of the electrical equipment, or the incubator 80 has good heat insulation, so that the heat emitted by the heat source 20 is less diffused to the environment.

[0147] In some embodiments, the controller 30 can be arranged outside the incubator 80 to reduce the influence of the temperature in the incubator 80 on the controller 30, and also to facilitate the operation of the controller 30 by the tester, avoiding entering the incubator 80 to operate the controller 30. In addition, the controller 30 arranged outside the incubator 80 can save space, without the need to arrange the incubator 80 to be larger in size.

[0148] The technical scheme of the embodiments of the present application can reduce the influence of the temperature of the environment on the heat output of the heat source 20 by arranging the bearing table 10 and the heat source 20 in the accommodating cavity 82 of the incubator 80, so that the heat source 20 can better heat the surface of the battery 2, thereby more accurately testing the highest temperature at which the battery 2 can normally work, reducing the risk of affecting the use of the battery 2 due to excessively high temperature, and improving the reliability of the use of the battery 2, while also saving the energy consumption of the heat output of the heat source 20.

[0149] Please refer to Figure 7 In some embodiments, the test device 1 further comprises a blowing member 81 arranged in the accommodating cavity 82, and the blowing member 81 is used to blow air to the bearing table 10.

[0150] In some embodiments, the blowing member 81 can be a hair dryer, a fan, etc.

[0151] In some embodiments, the blowing member 81 can be located below the bearing table 10, so that the blowing member 81 blows air to the bearing table 10 along the second direction Y, so that the airflow passes from below the bearing table 10.

[0152] As mentioned above, the battery 2 tested in the present application can be applied to a hybrid vehicle, and the battery 2 is arranged at the bottom of the vehicle. When the vehicle is driving, the airflow passes from below the chassis of the vehicle, that is, from below the battery 2. The blowing member 81 is arranged to simulate the driving state of the vehicle.

[0153] It should be noted that the bearing table 10 can have a hollow part, so that the blowing of the blowing member 81 can take away part of the heat of the battery 2, to better simulate the driving state of the vehicle.

[0154] In some embodiments, the bearing table 10 can be movably arranged in the first support 60 along the first direction X to adjust the position of the battery 2 in the first direction X. The chassis heights of different vehicles can be different, and the airflow passing below the chassis during driving is also different. When the height of the chassis is large, the bearing table 10 can be moved upward relative to the first support 60, so that the battery 2 can be moved upward. When the height of the chassis is small, the bearing table 10 can be moved downward relative to the first support 60, so that the battery 2 can be moved downward, thereby better simulating the driving state of the vehicle.

[0155] The technical scheme of the embodiment of the application, when the battery 2 is normally used, such as when the battery 2 is arranged on a vehicle chassis to supply power to the vehicle, the vehicle may exist wind speed affecting the temperature of the surface of the battery 2 in the driving process. By arranging the blowing piece 81 to blow air to the battery 2 on the bearing table 10, the use condition of the battery 2 is simulated more accurately, so that the highest temperature at which the battery 2 can normally work can be more accurately tested, the risk of affecting the use of the battery 2 due to the temperature being too high is reduced, and the reliability of the use of the battery 2 is improved.

[0156] Please refer to Figure 8 and Figure 9 , Figure 8 the mounting schematic view of the heat shield provided by some embodiments of the application, Figure 9 the structural schematic view of the heat shield provided by some embodiments of the application. In some embodiments, the test device 1 further comprises a heat shield 90, the inside of the heat shield 90 has a cavity 91 with two open ends, one end of the heat shield 90 is in communication with the heat source 20, and the other end of the heat shield 90 is used to be connected with the surface of the battery 2 to form a heat transfer channel.

[0157] In some embodiments, the material of the heat shield 90 can be silica aerogel, polyurethane foam, glass wool, etc.

[0158] In some embodiments, the way of heating the surface of the battery 2 by the heat source 20 can be non-contact heating. The heat source 20 and the surface of the battery 2 are connected through the heat transfer channel of the heat shield 90, so as to reduce the heat diffusion of the heat source 20.

[0159] In some embodiments, one end of the heat shield 90 is in communication with the heat source 20, so that part of the heat emitted by the heat source 20 is located in the cavity 91. The other end of the heat shield 90 is connected with the surface of the battery 2, so that the heat emitted by the heat source 20 is transmitted along the cavity 91 to the surface of the battery 2.

[0160] The technical scheme of the embodiment of the application, by arranging the heat shield 90 to communicate the heat source 20 and the surface of the battery 2, reducing the diffusion of the heat output by the heat source 20, the heat source 20 can better heat the surface of the battery 2, so that the highest temperature at which the battery 2 can normally work can be tested, the risk of affecting the use of the battery 2 due to the temperature being too high is reduced, the reliability of the use of the battery 2 is improved, and the energy consumption of the heat emitted by the heat source 20 is also saved.

[0161] Please refer to Figure 1 and Figure 2 In some embodiments, the test device 1 comprises a bearing table 10, a heat source 20, a controller 30, an infrared temperature sensor 51 and a detection piece 40. The bearing table 10 is used to bear the battery 2.

[0162] In some embodiments, the controller 30 is in signal connection with the heat source 20, and the controller 30 is configured to control the heating temperature of the heat source 20.

[0163] In some embodiments, the heat source 20 comprises a first sub heat source 21 and a second sub heat source 22, and the number of the first sub heat source 21 and the number of the second sub heat source 22 are both five. The five first sub heat sources 21 are arranged at intervals, and the five first sub heat sources 21 are located on one side of the length direction of the battery 2, and the five first sub heat sources 21 heat the surface on one side of the length direction of the battery 2. The five second sub heat sources 22 are arranged at intervals, and the five second sub heat sources 22 are located on one side of the width direction of the battery 2, and the surface on one side of the width direction of the battery 2 is heated.

[0164] In some embodiments, the number of the infrared temperature sensors 51 is multiple, and each first sub heat source 21 is provided with five infrared temperature sensors 51, and the five infrared temperature sensors 51 detect the temperature of the surface area of the battery 2 heated by the first sub heat source 21. Each second sub heat source 22 is provided with five infrared temperature sensors 51, and the five infrared temperature sensors 51 detect the temperature of the surface area of the battery 2 heated by the second sub heat source 22.

[0165] In some embodiments, the electric device is configured to be electrically connected with the battery 2, so that the battery 2 can be charged or discharged. When the battery 2 works abnormally, the detection member 40 detects that the charging and discharging current or the charging and discharging voltage of the battery 2 is abnormal, so that the alarm is triggered. Or the current detection system or the voltage detection system of the battery 2 itself triggers the alarm, so that the highest temperature at which the battery 2 can work normally is tested.

[0166] The technical scheme of the embodiments of the present application can test the highest temperature at which the battery 2 can work normally by setting the temperature detector 50 to detect the temperature value of the surface of the battery 2 and whether the working condition of the battery 2 is normal, so as to test the heat resistance of the battery 2. When the battery 2 is used, the temperature range at which the battery 2 can work normally can be indicated in advance, so that the user can improve the temperature of the use environment of the battery 2 in advance, reduce the risk of affecting the use of the battery 2 due to the temperature being too high, and improve the reliability of the use of the battery 2.

[0167] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent components can be substituted therefor. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A testing device, characterized in that: include: A carrying platform for carrying batteries; a heat source located on a peripheral side of the carrying platform, wherein the heat source is configured to heat at least one side of the battery when the carrying platform carries the battery; a controller, connected to the heat source signal, and configured to control the heating temperature of the heat source; A detection component, used to detect the charge and discharge current and / or charge and discharge voltage of the battery; The first bracket is provided with the supporting platform movably along a first direction, and the first direction is parallel to the direction of gravity.

2. The testing device according to claim 1, wherein: The heat source includes a first sub-heat source and a second sub-heat source, the first sub-heat source and the second sub-heat source are arranged at intervals, and the heat transfer direction of the first sub-heat source is different from the heat transfer direction of the second sub-heat source, so as to heat the adjacent two sides of the battery.

3. The testing device according to claim 1, wherein: The testing device further includes a temperature detector configured to detect a temperature of a heated surface of the battery.

4. The testing device according to claim 3, characterized in that: The temperature detector includes an infrared temperature sensor.

5. The testing device according to claim 3, characterized in that: The temperature detector includes a surface thermocouple and a heat insulation layer. The surface thermocouple is used to be attached to the heated surface of the battery. The heat insulation layer is arranged between the surface thermocouple and the heat source.

6. The testing device according to claim 1, characterized in that The first bracket has a first track extending along the first direction, and the bearing platform is slidably engaged with the first track; The testing device further includes a first power member, an output end of which is connected to the carrying platform to drive the carrying platform to move along the first track.

7. The testing device according to claim 1, characterized in that The testing device further includes a second bracket, and the heat source is movably disposed on the second bracket along the first direction.

8. The testing device according to claim 7, characterized in that: The second bracket has a second track extending along the first direction, and the heat source is slidably engaged with the second track; The testing device further includes a second power member, an output end of which is connected to the heat source to drive the heat source to move along the second track.

9. The testing device according to claim 7, characterized in that: A moving member is provided below the second bracket, and the moving member is used to drive the second bracket to move closer to or away from the supporting platform along a second direction, where the second direction is perpendicular to the first direction.

10. The testing device according to claim 1, wherein: The testing device further includes an insulation box having a receiving cavity, wherein the supporting platform and the heat source are located in the receiving cavity.

11. The testing device according to claim 10, characterized in that: The testing device further includes a blowing member, which is disposed in the accommodating cavity and is used for blowing air toward the supporting platform.

12. The testing device according to claim 1, wherein: The testing device also includes a heat shield having an interior with a cavity open at both ends. One end of the heat shield is connected to the heat source, and the other end of the heat shield is used to fit and connect with the surface of the battery to form a heat transfer channel.

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