Battery test connecting device and battery detection equipment

Abstract

The invention provides a battery test connection device and battery detection equipment, and belongs to the technical field of test. The battery test connecting device comprises a supporting seat, a test seat and a driving mechanism, the supporting seat is provided with a first bearing body and a first test port arranged on the first bearing body, and the first end of the first test port is used for being electrically connected with a battery to be tested; the test seat comprises a second bearing body and a second test port arranged on the second bearing body, the first end of the second test port is used for being electrically connected with the second end of the first test port, and the second end of the second test port is used for being electrically connected with external test equipment; the driving mechanism is used for driving the testing seat and the supporting seat to move relatively, and the first testing port comprises at least two of a current testing port, a voltage testing port, an internal resistance testing port, an expansion force testing port and a temperature testing port. Therefore, multi-type detection of the to-be-tested battery can be realized at the same time, the replacement frequency of the test device is reduced, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of testing, in particular to a battery test connection device and a battery detection 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 their development.

[0003] After the battery is produced and assembled, it needs to be tested for electrical performance. In the related art, probes are used for electrical connection and testing, but the type of test that can be performed is single and the efficiency is low. Therefore, how to improve the battery test efficiency has become a technical problem to be solved. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the background art. To this end, one object of the present application is to provide a battery test connection device and a battery detection device to solve the technical problem of low efficiency in battery testing.

[0005] An embodiment of the first aspect of the present application provides a battery test connection device for connecting a battery under test and an external test device. The battery test connection device comprises a support seat, a test seat and a driving mechanism. The support seat has a first carrier and a first test port provided on the first carrier. The first carrier is used to fix the battery under test. The first end of the first test port is used for electrical connection with the battery under test. The test seat comprises a second carrier and a second test port provided on the second carrier. The first end of the second test port is used for electrical connection with the second end of the first test port, and the second end of the second test port is used for electrical connection with the external test device. The driving mechanism is used to drive the test seat and the support seat to move relative to each other, so that the second end of the first test port and the first end of the second test port are electrically connected or disconnected. The first test port comprises at least two of a current test port, a voltage test port, an internal resistance test port, an expansion force test port and a temperature test port.

[0006] In the technical solution of the embodiment of the present application, at least two of the current test port, the voltage test port, the internal resistance test port, the expansion force test port and the temperature test port are provided in the first test port. The battery under test is fixed to the support seat and the test seat is driven by the driving mechanism to realize electrical connection between the first test port and the second test port for multiple types of detection. Multiple types of detection can be realized simultaneously for the battery under test, the frequency of replacing the test device is reduced, the test efficiency is improved, and in addition, different test ports can be arranged arbitrarily and replaced conveniently, improving the flexibility of the test device.

[0007] In some embodiments, the support base comprises a protection structure arranged on the first carrier, and the first test port is at least partially located in the protection structure so as to be separated from the battery to be tested on the first carrier. In this way, by arranging the protection structure on the first carrier, the probability of the battery to be tested exploding during testing to damage the first test port can be reduced, the service life of the first test port can be improved, and the testing efficiency can be improved.

[0008] In some embodiments, the protection structure is prepared by sheet metal processing. In this way, by preparing the protection structure by sheet metal processing, the material utilization rate can be improved, and the protection structure can be mass-produced, thereby reducing the cost and improving the testing efficiency.

[0009] In some embodiments, the protection structure has a receiving cavity and a plurality of connecting holes located at an end of the receiving cavity away from the battery to be tested, and the first test port is connected to the second test port through the connecting holes. In this way, the first test port is connected to the second test port through the connecting holes, which is simple in structure and convenient to operate, thereby improving the testing efficiency.

[0010] In some embodiments, the first test port is a probe, and the probe is arranged in the connecting hole and protrudes from the surface of the protection structure for electrical connection with the first end of the second test port. In this way, the first test port arranged as a probe and protruding from the surface of the protection structure can improve the protection effect of the protection structure on the first test port, and the probe-type test port is low in cost and convenient to replace, thereby improving the testing efficiency.

[0011] In some embodiments, the probe is configured to move in a direction perpendicular to the surface of the protection structure, and an elastic member is arranged between the probe and the protection structure, and the elastic member is used to reset the probe after moving in the direction perpendicular to the surface of the protection structure. In this way, by arranging the elastic member that resets the probe after moving in the direction perpendicular to the surface of the protection structure, the disconnection can be reset in time to facilitate the next connection, and the electrical connection efficiency of the first test port and the second test port can be improved.

[0012] In some embodiments, the probe can move in a direction perpendicular to the surface of the protection structure by 8-10 mm. In this way, the probe can move in a direction perpendicular to the surface of the protection structure, the flexibility of the testing device can be improved, the fault tolerance of the electrical connection of the first test port and the second test port can be improved, and the testing efficiency can be improved.

[0013] In some embodiments, the first end of the probe protruding from the protection structure is configured to swing relative to the second end of the probe connected to the protection structure. In this way, the fault tolerance of the connection of the first test port and the second test port in the axial direction of the probe can be improved, and the testing efficiency can be further improved.

[0014] In some embodiments, the maximum angle of oscillation of the first end of the probe relative to the second end of the probe is greater than or equal to 2 degrees and less than or equal to 5 degrees. In this way, the range of angles of oscillation of the probe relative to the axis of the probe is set to 2-5 degrees, which facilitates electrical connection of the first test port and the second test port.

[0015] In some embodiments, the second test port is a jack that matches the probe, and the number of the jack is the same as and one-to-one corresponds to the number of the probe. In this way, the second test port is a jack and is arranged in correspondence with the probe, which facilitates the implementability of electrical connection of the first test port and the second test port and improves test efficiency.

[0016] In some embodiments, according to some embodiments of the present application, the support seat further comprises a first network port electrically connected with the first test port, and the test seat comprises a second network port arranged in correspondence with the first network port, which is used to be connected with the first network port and an external device respectively, so that the data collected by the first test port is transmitted to the external device through the network. In this way, by arranging the second network port and connecting it with the first network port arranged on the support seat and the external device respectively, it is convenient to transmit the data obtained by the test, and test efficiency is improved.

[0017] In some embodiments, the support seat further comprises a first calibration port arranged on the first carrier, one end of the first calibration port is electrically connected with the first test port, and the test seat further comprises a second calibration port arranged on the second carrier, the other end of the first calibration port is connected with one end of the second calibration port, and the other end of the second calibration port is used to be connected with an external calibration device. In this way, by arranging the first calibration port and the second calibration port and electrically connecting them to the external calibration device, it is convenient to collect qualified data, improve the rationality of test data, and further improve test efficiency.

[0018] In some embodiments, in the case where the first test port comprises a temperature test port, the support seat further comprises a temperature detection unit arranged on the first carrier, the temperature detection unit is used to detect the temperature of the battery to be tested, and the temperature detection unit is electrically connected with the temperature test port. In this way, by arranging the temperature detection unit, the temperature of the battery to be tested can be detected, which is simple and easy to operate and improves test efficiency.

[0019] In some embodiments, in the case where the first test port comprises at least one of a voltage test port, a resistance test port and a current test port, the support seat further comprises a switching structure arranged on the first carrier, the switching structure is electrically connected with the positive electrode and the negative electrode of the battery to be tested, and at least one of the voltage test port, the resistance test port and the current test port is electrically connected with the switching structure. In this way, by arranging the switching structure and electrically connecting it with the positive electrode and the negative electrode of the battery to be tested, it is convenient to connect the battery to be tested to the power-on state, and test efficiency is improved.

[0020] In some embodiments, the test seat further comprises a transmission line, one end of the transmission line is electrically connected with the second end of the second test port, and the other end is electrically connected with the external test equipment. In this way, the second test port and the external test equipment are electrically connected through the transmission line, which improves the flexibility of the test device reading and facilitates the replacement of different external test equipment, thereby improving the test efficiency.

[0021] In some embodiments, the first carrier is provided with a limiting structure for fixing the battery to be tested at a preset position. In this way, by setting the limiting structure to fix the battery to be tested, the stability during the test is improved, and the test efficiency is improved.

[0022] In some embodiments, the limiting structure comprises a first baffle and a second baffle, the first baffle and the second baffle are perpendicular to each other or parallel to each other, and the first baffle and the second baffle abut the battery to be tested to fix the battery to be tested at a preset position. In this way, by setting the limiting structure as the first baffle and the second baffle, the structure is simple and the cost is low, which is conducive to fixing the battery to be tested for testing.

[0023] In some embodiments, at least one of the first baffle and the second baffle has at least one lightening hole. In this way, by setting the lightening hole, the weight of the support seat can be reduced, the battery to be tested can be disassembled more conveniently, the portability is better, and the test efficiency is improved.

[0024] Embodiments of the second aspect of the application provide a battery detection device, which comprises the above-mentioned battery detection connection device and a test device, the test device is electrically connected with the second end of the second test port of the battery detection connection device, for detecting at least two of the current, voltage, internal resistance, expansion force and temperature of the battery to be tested.

[0025] The above description is only a summary of the technical solutions of the application. In order to enable the technical means of the application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the application to be more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0026] In the drawings, identical or similar components or elements are denoted by identical reference numerals throughout the several views, unless otherwise specified. The drawings are not necessarily to scale. It is to be understood that these drawings only depict some embodiments in accordance with the disclosure and should not be considered as limiting the scope of the disclosure.

[0027] Figure 1 Structure schematic diagram of a vehicle of some embodiments of the application;

[0028] Figure 2A schematic view of a battery exploded structure for some embodiments of the present application;

[0029] Figure 3 A schematic view of a battery test connection device structure for some embodiments of the present application;

[0030] Figure 4 A schematic view of a support seat structure for some embodiments of the present application;

[0031] Figure 5 A schematic view of a first test port structure for some embodiments of the present application;

[0032] Figure 6 A schematic view of a first test port structure for some embodiments of the present application;

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] A vehicle 1000;

[0035] A battery 100, a controller 200, a motor 300;

[0036] A box body 10, a first part 11, a second part 12;

[0037] A battery cell 20;

[0038] A support seat 30, a first carrier 301, a first test port 302, a probe 303, an elastic member 304;

[0039] A test seat 31, a second carrier 311, a second test port 312, a jack 313;

[0040] A driving mechanism 32, a protection structure 33, a connecting hole 331, an adapter structure 34, a transmission line 35;

[0041] A limiting structure 36, a first baffle 361, a second baffle 362, a fixing seat 37. DETAILED DESCRIPTION

[0042] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0043] 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 the present application belongs; the terms used herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0044] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0045] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0046] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0047] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0048] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0049] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0050] At present, from the development of market situation, the application of power battery is more and more extensive. The power battery is not only applied to the energy storage power supply system of water power, fire power, wind power and solar power station, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric vehicles, electric transportation tools, military equipment and aerospace and other fields. With the continuous expansion of the application field of power battery, the demand of its market is also increasing.

[0051] After the battery is manufactured, its performance needs to be tested, including but not limited to current test, voltage test and temperature test, and in some cases, even the expansion force and internal resistance inside the battery need to be detected. Different types of tests require different test devices, so when changing the test item type, the corresponding test device needs to be replaced, which is low in efficiency and time-consuming.

[0052] Therefore, the battery test connecting device is provided. The battery test connecting device comprises a support seat, a test seat and a driving mechanism. The support seat has a first carrier and a first test port provided on the first carrier. The first carrier is used for carrying a battery to be tested. A first end of the first test port is used for electrically connecting with the battery to be tested. The test seat comprises a second carrier and a second test port provided on the second carrier. A first end of the second test port is used for electrically connecting with a second end of the first test port. A second end of the second test port is used for electrically connecting with an external test device. The driving mechanism is used for driving the test seat and the support seat to move relatively, so that the second end of the first test port and the first end of the second test port are electrically connected or disconnected. The first test port comprises at least two of a current test port, a voltage test port, an internal resistance test port, an expansion force test port and a temperature test port. In this way, multiple types of test ports can be integrated on the test connecting device, reducing the replacement frequency of the test device, thereby improving the test efficiency.

[0053] The battery test connecting device disclosed in the embodiments of the present application can be used for detecting the battery. The battery disclosed in the embodiments of the present application can be used in, but is not limited to, an electric device such as a vehicle, a ship or an aircraft.

[0054] The embodiments of the present application provide an electric device using a battery as a power supply. 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 vehicle, an electric automobile, a ship, a spacecraft and the like. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric automobile toy, an electric ship toy and an electric aircraft toy, and the spacecraft can include an airplane, a rocket, a space shuttle and a spacecraft.

[0055] The following embodiments take a vehicle 1000 as an example for convenience of description.

[0056] Please refer to Figure 1 , Figure 1 A structural schematic diagram of a vehicle is provided for some embodiments of the present application. The vehicle 1000 can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid automobile or a range extended automobile, etc. The vehicle 1000 is internally provided with a battery 100, which can be arranged at the bottom, head or tail of the vehicle 1000. The battery 100 can be used for power supply of the vehicle 1000, for example, the battery 100 can be used as an operating power supply of the vehicle 1000. The vehicle 1000 can further include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to supply power to the motor 300, for example, to meet the working power demand of the vehicle 1000 during starting, navigation and driving.

[0057] In some embodiments of the present application, the battery 100 can not only be used as an operating power supply of the vehicle 1000, but also be used as a driving power supply of the vehicle 1000, to replace or partially replace fuel or natural gas to provide driving power for the vehicle 1000.

[0058] Please refer to Figure 2 , Figure 2 A structural schematic diagram of a battery is provided for some embodiments of the present application. The battery 100 includes a box body 10 and a battery monomer 20, and the battery monomer 20 is contained in the box body 10. Among them, the box body 10 is used to provide a containing space for the battery monomer 20, and the box body 10 can adopt various structures. In some embodiments, the box body 10 can include a first part 11 and a second part 12, the first part 11 and the second part 12 are mutually covered, and the first part 11 and the second part 12 jointly define a containing space for containing the battery monomer 20. The second part 12 can be a hollow structure with one end open, and the first part 11 can be a plate-shaped structure, which is covered on the open side of the second part 12 to jointly define the containing space with the second part 12; the first part 11 and the second part 12 can also be hollow structures with one side open, and the open side of the first part 11 is covered on the open side of the second part 12. Of course, the box body 10 formed by the first part 11 and the second part 12 can be various shapes, such as a cylinder, a cuboid, etc.

[0059] In the battery 100, the battery cells 20 can be multiple, and the multiple battery cells 20 can be connected in series or in parallel or in a mixed manner. The mixed manner means that the multiple battery cells 20 are connected in series and in parallel. The multiple battery cells 20 can be directly connected in series or in parallel or in a mixed manner, and then the multiple battery cells 20 are accommodated in the box body 10 as a whole. Of course, the battery 100 can also be that the multiple battery cells 20 are connected in series or in parallel or in a mixed manner to form a battery module, and then the multiple battery modules are connected in series or in parallel or in a mixed manner to form a whole and are accommodated in the box body 10. The battery 100 can also include other structures, for example, the battery 100 can also include a current confluence component for realizing the electrical connection between the multiple battery cells 20.

[0060] Each battery cell 20 can be a secondary battery or a primary battery, and can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 20 can be in the shape of a cylinder, a flat body, a cuboid or other shapes.

[0061] Please refer to Figures 3-6 , Figure 3 for the structural schematic diagram of the battery test connection device of some embodiments of the present application; Figure 4 for the structural schematic diagram of the support seat of some embodiments of the present application; Figure 5 for the structural schematic diagram of the first test port of some embodiments of the present application; Figure 6 for the structural schematic diagram of the first test port of some embodiments of the present application from another perspective.

[0062] The embodiments of the present application provide a battery test connection device for connecting a battery to be tested and an external test equipment. The battery test connection device comprises a support seat 30, a test seat 31 and a driving mechanism 32. The support seat 30 has a first bearing body 301 and a first test port 302 arranged on the first bearing body 301. The first bearing body 301 is used for bearing the battery to be tested. The first end of the first test port 302 is used for electrical connection of the battery to be tested. The test seat 31 comprises a second bearing body 311 and a second test port 312 arranged on the second bearing body 311. The first end of the second test port 312 is used for electrical connection with the second end of the first test port 302, and the second end of the second test port 312 is used for electrical connection with the external test equipment. The driving mechanism 32 is used for driving the relative movement of the test seat 31 and the support seat 30, so as to make the second end of the first test port 302 and the first end of the second test port 312 electrically connected or disconnected. The first test port 302 comprises at least two of a current test port, a voltage test port, an internal resistance test port, an expansion force test port and a temperature test port.

[0063] As Figure 3As shown, the support base 30 is placed on the fixing base 37, the support base 30 can be separated from the fixing base 37, the fixing base 37 has a guide structure for placing the support base 30, the first carrier 301 can be a flat plate of any shape, for example, can be a polygon or a circle, and the shape of the first carrier 301 is not limited herein. The first test port 302 is fixedly installed on one side of the first carrier 301, and the installation mode can be adhesion, clamping or fastener connection. The first carrier 301 can be clamped with the battery to be tested through a buckle structure, so as to achieve the purpose of fixedly carrying the battery to be tested, so as to facilitate disassembly and replacement of the battery, and the first test port 302 close to one end of the first carrier 301 can realize electrical connection with the battery to be tested, wherein the electrical connection mode can be copper rod or wire connection.

[0064] The second carrier 311 can be a flat plate of any shape, for example, can be a polygon or a circle, and the shape of the second carrier 311 is not limited herein, and the second test port 312 is arranged on the second carrier 311 close to one end of the first test port 302, wherein one end of the second test port 312 can realize electrical connection with the first test port 302, and the electrical connection mode can be probe type electrical connection, and the other end of the second test port 312 can realize electrical connection with an external test device, and it should be understood that the external test device can be a data uploading type or data processing type device, and the number of external test devices connected to the other end of the second test port 312 can be more than one.

[0065] The driving mechanism 32 can be a gas cylinder or a hydraulic device, or can include an electric energy driven device such as a motor, and the driving mechanism 32 can be fixedly installed on the second carrier 311 or can be at other positions, and the specific installation position and installation mode of the driving mechanism 32 are not limited herein. The driving mechanism 32 can drive at least one of the test seat 31 and the support base 30 to move, so as to realize the relative movement of the two, thereby realizing the connection or disconnection of the first test port 302 and the second test port 312. In some embodiments, the driving mechanism 32 can remove the test seat 31 to move in a straight line direction relative to the support base 30, and when the two are close to each other to a certain position, the connection of the first test port 302 and the second test port 312 is realized, and when the two are away from each other to a certain distance, the disconnection of the first test port 302 and the second test port 312 is realized.

[0066] The first test port 302 can include at least two of a current test port, a voltage test port, an internal resistance test port, an expansion force test port, and a temperature test port, and the port type of the second test port 312 is correspondingly set according to the port type of the first test port 302. The current test port is used to test the current value of the battery under test; the voltage test port is used to test the voltage value of the battery under test; the internal resistance test port is used to test the internal resistance of the battery under test; the expansion force test port is used to test the expansion force of the battery under test during charging and discharging to evaluate the performance and safety of the battery under test; and the temperature test port is used to test the temperature value inside the battery under test.

[0067] The first end of the first test port 302 can integrate various types of test interfaces and electrically connect the integrated interface to the positive and negative electrodes of the battery under test, so that the positive and negative electrodes of the battery under test do not need to be repeatedly connected and disconnected during different test projects, the reliability and stability of the connection can be maintained, and only the probe connected to the second end of the first test port 302 needs to be connected according to the test content, which can significantly improve the detection efficiency. In some embodiments, the first end of the first test port 302 can be an integrated test copper rod, and two test copper rods are respectively electrically connected to the positive and negative electrode posts of the battery.

[0068] The first end of the second test port 312 is pluggably connected to the second end of the first test port 302, so that the detection data collected by the first test port 302 can be transmitted to external detection equipment through different detection channels. When the number of external detection equipment is multiple, the multiple detection channels of the second test port 312 can be connected to realize more favorable wiring arrangement, thereby providing more sufficient arrangement space and connection space for multiple external detection equipment and realizing more detection function integration.

[0069] By setting at least two of the current test port, the voltage test port, the internal resistance test port, the expansion force test port, and the temperature test port in the first test port 302, the battery under test is fixed to the support seat 30 and the test seat 31 is driven by the driving mechanism 32 to realize the electrical connection between the first test port 302 and the second test port 312 for multiple type detection, so that multiple type detection of the battery under test can be realized at the same time, the test device replacement frequency is reduced, the test efficiency is improved, and in addition, different test ports can be arranged arbitrarily and replaced conveniently, thereby improving the flexibility of the test device.

[0070] According to some embodiments of the present application, the support seat 30 includes a protection structure 33 arranged on the first carrier 301, and the first test port 302 is at least partially located in the protection structure 33, so that the first test port 302 is separated from the battery under test on the first carrier 301.

[0071] The protection structure 33 can be a frame-shaped or box-shaped structure with an inner cavity, and the inner cavity of the protection structure 33 can accommodate at least a portion of the first test port 302, so that the first test port 302 is physically isolated from the battery to be tested, thereby protecting the first test port 302.

[0072] In some embodiments, the protection structure 33 can include a wall surface between the first test port 302 and the battery to be tested on the first carrier 301, so that the first test port 302 is separated from the battery to be tested, and the protection structure 33 can be at least partially disposed between the first test port 302 and the battery to be tested.

[0073] Therefore, by providing the protection structure 33 on the first carrier 301, the probability of the battery to be tested exploding during testing and damaging the first test port 302 can be reduced, the service life of the first test port 302 can be improved, and the testing efficiency can be improved.

[0074] According to some embodiments of the present application, the protection structure 33 is made by sheet metal processing.

[0075] Sheet metal processing refers to processing of metal sheets to manufacture parts or products of various shapes and structures. This process involves various processing techniques, including but not limited to shearing, stamping, bending, welding, laser cutting, numerical control punching, rolling, stretching, spinning, etc.

[0076] The outer shape of the protection structure 33 can be designed according to the specific structure of the first test port 302, and in some embodiments, the protection structure 33 can even be integrally formed with the first carrier 301. Sheet metal processing can produce complex geometric shapes and structures, with high processing precision and high material utilization, and can meet various design requirements.

[0077] Therefore, by preparing the protection structure 33 by sheet metal processing, it is beneficial to improve the material utilization and mass production of the protection structure 33, thereby reducing costs and improving testing efficiency.

[0078] According to some embodiments of the present application, the protection structure 33 has an accommodation cavity and a plurality of connection holes 331 away from the battery to be tested at one end of the accommodation cavity, and the first test port 302 is connected to the second test port 312 through the connection holes 331.

[0079] The protection structure 33 is a frame structure, and a receiving cavity is formed in the frame structure of the protection structure 33. In addition, the protection structure 33 has a plurality of connecting holes 331, wherein the plurality of connecting holes 331 are arranged on a side away from the battery to be tested, and the plurality of connecting holes 331 are arranged corresponding to different types of test ports in the first test port 302. The first test port 302 is connected to the second test port 312 through the connecting hole 331, and the connection between the two can be any feasible connection mode, such as connection through a wire, connection through a connecting terminal, and the like. The present embodiment does not limit this.

[0080] Therefore, the first test port 302 is connected to the second test port 312 through the connecting hole 331, which is simple in structure and convenient to operate, thereby improving the test efficiency.

[0081] According to some embodiments of the present application, the first test port 302 is a probe 303, and the probe 303 is arranged in the connecting hole 331 and protrudes from the surface of the protection structure 33 to be electrically connected to the first end of the second test port 312.

[0082] The probe 303 can be a contact probe, and the probe 303 is columnar or conical and arranged in the connecting hole 331. A part of the probe 303 protrudes from the surface of the protection structure 33, and this protruding part serves as a contact end for detachable electrical connection with the second test port 312. The connection end of the probe 303 with the second test port 312 can be any shape suitable for the second test port 312, and the present embodiment does not limit the contact end of the probe 303. The probe material can be any conductive material. In some examples, a metal conductive material can be selected to prepare the probe 303, such as a tungsten probe or a tungsten alloy probe, so that the probe 303 has certain strength, stiffness and hardness to better meet the connection requirements.

[0083] Therefore, the first test port 302 is arranged as a probe 303 and protrudes from the surface of the protection structure 33, which can improve the protection effect of the protection structure 33 on the first test port 302. In addition, the probe type test port is low in cost and convenient to replace, thereby improving the test efficiency.

[0084] According to some embodiments of the present application, the probe 303 is configured to be movable in a direction perpendicular to the surface of the protection structure 33, and an elastic member 304 is arranged between the probe 303 and the protection structure 33. The elastic member 304 is used to reset the probe 303 after moving in the direction perpendicular to the surface of the protection structure 33.

[0085] The protection structure 33 can include opposite first and second wall surfaces, wherein the first wall surface is located between the battery under test and the first test port 302, and the second wall surface is located on the side of the first wall surface away from the battery under test, and the first and second wall surfaces define a receiving cavity. In some embodiments, the second wall surface is a vertical plane, and the connecting hole 331 is provided on the second wall surface, and the probe 303 is movably connected in the connecting hole 331, so that the probe 303 can move in a direction perpendicular to the second wall surface of the protection structure 33, for example, in the X direction. The elastic member 304 is provided between the probe 303 and the protection structure 33, and is used to provide a restoring force for the movement of the probe 303, so that the probe 303 can be reset after moving in a direction perpendicular to the surface of the protection structure 33. The elastic member 304 can be made of an elastic material and provide a restoring force for the probe by relying on its own elastic deformation, or can be a spring or a similar elastic structural member. In some embodiments, the elastic member 304 can be an insulating member, or is in insulating connection with the probe 303, so as to avoid interfering with the detection signal of the probe 303.

[0086] Therefore, the probe 303 can move in a direction perpendicular to the surface of the protection structure 33, thereby being more conducive to being connected to different specifications or types of second test wide ports, and the compatibility and flexibility of the connection can be improved. By providing the elastic member 304 that enables the probe 303 to be reset after moving in a direction perpendicular to the surface of the protection structure 33, the probe 303 can be reset in time after being disconnected, so as to facilitate the next connection, and the electrical connection efficiency of the first test port 302 and the second test port 312 can be improved.

[0087] According to some embodiments of the present application, the movement distance of the probe 303 in a direction perpendicular to the surface of the protection structure 33 is 8-10 mm.

[0088] The probe 303 is movably connected in the connecting hole 331 in the X direction, and the probe 303 is an elongated structure extending in the X direction. The probe 303 can move in the connecting hole 331 in the X direction, so that the distance between the end of the probe 303 farthest from the protection structure 33 and the end of the probe 303 fixedly connected to the protection structure 33 is H, wherein the value of H is 8-10 mm.

[0089] Therefore, the probe 303 can move in a direction perpendicular to the surface of the protection structure 33, thereby improving the flexibility of the test device, improving the fault tolerance rate of the electrical connection between the first test port 302 and the second test port 312, and improving the test efficiency.

[0090] According to some embodiments of the present application, the first end of the probe 303 protruding from the protection structure 33 is configured to be able to swing relative to the second end of the probe 303 connected to the protection structure 33.

[0091] The first end of the probe 303 is protruded and away from the protection structure 33, and the second end of the probe 303 is connected with the protection structure 33. The second end is arranged in the connecting hole 331 of the protection structure 33. Therefore, the second end is a fixed end, and the first end is a free end. The probe 303 can be elastically deformed so that the first end can swing relative to the second end in any direction.

[0092] Therefore, the fault tolerance of the first test port 302 and the second test port 312 in the axial direction of the probe 303 is improved, and the test efficiency is further improved.

[0093] According to some embodiments of the present application, the maximum angle of the first end of the probe 303 swinging relative to the second end is greater than or equal to 2 degrees and less than or equal to 5 degrees.

[0094] In some embodiments, the intersection of the surface of the protection structure 33 facing the first end of the probe 303 and the axis of the probe 303 can be directly used as the position of the second end. If the swinging angle of the probe 303 is too small, the effect of reducing the electrical connection fault tolerance cannot be achieved. If the swinging angle of the probe 303 is too large, it is not conducive to the electrical connection of the first test port 302 and the second test port 312. Figure 6 In some embodiments, the maximum angle of the first end of the probe 303 swinging relative to the second end is θ, where the value of θ is greater than or equal to 2 degrees and less than or equal to 5 degrees.

[0095] Therefore, the angle range of the probe 303 swinging relative to the axial position of the probe 303 is set to 2-5 degrees, which is conducive to the electrical connection of the first test port 302 and the second test port 312.

[0096] According to some embodiments of the present application, the second test port 312 is a jack 313 matched with the probe 303. The number of the jack 313 is the same as that of the probe 303, and the jack 313 is arranged one-to-one corresponding to the probe 303.

[0097] The first test port 302 is arranged as the probe 303, and the second test port 312 is arranged as the jack 313. The probe 303 can directly match the jack 313 and realize electrical connection. The number of the jack 313 and the probe 303 is more than two and arranged corresponding to each other.

[0098] Therefore, the second test port 312 is the jack 313 and is arranged corresponding to the probe 303, which is conducive to improving the implementability of the electrical connection of the first test port 302 and the second test port 312 and improving the test efficiency.

[0099] According to some embodiments of the present application, the support base 30 further comprises a first network port electrically connected with the first test port 302, and the test base 31 comprises a second network port corresponding to the first network port, which is configured to be connected with the first network port and an external device respectively, so that the data collected by the first test port 302 is transmitted to the external device through the network.

[0100] The first network port can be a probe type, the second network port can be a jack type matched with the probe 303, and the external device can be a data collection device. The second network port can be directly connected with the first network port and the external device or indirectly connected through a conductive material.

[0101] In this way, by setting the second network port and connecting it with the first network port on the support base 30 and the external device respectively, the transmission of the data obtained by the test is facilitated, and the test efficiency is improved.

[0102] According to some embodiments of the present application, the support base 30 further comprises a first calibration port arranged on the first carrier 301, one end of the first calibration port being electrically connected with the first test port 302, and the test base 31 further comprises a second calibration port arranged on the second carrier 311, the other end of the first calibration port being connected with one end of the second calibration port, and the other end of the second calibration port being configured to be connected with an external calibration device.

[0103] The first calibration port can be a probe type, and the second calibration port can be a jack type matched with the probe 303. The external calibration device can be configured to preliminarily process the collected data, for example, to calculate the average value, so as to determine whether the collected data is qualified data.

[0104] In this way, by setting the first calibration port and the second calibration port and electrically connecting them with the external calibration device, qualified data is collected, the rationality of the test data is improved, and the test efficiency is further improved.

[0105] According to some embodiments of the present application, in the case where the first test port 302 comprises a temperature test port, the support base 30 further comprises a temperature detection unit arranged on the first carrier 301, the temperature detection unit being configured to detect the temperature of the battery to be tested, and the temperature detection unit being electrically connected with the temperature test port.

[0106] The temperature detection unit can be a temperature sensing element, which can be placed on the first carrier 301 or fixed on the battery to be tested, and the specific placement position of the temperature detection unit is not limited. During the test, the battery to be tested is in an energized working state, and the temperature detection unit can detect the temperature value in the working scene of the battery to be tested.

[0107] Therefore, the temperature detection unit is arranged to detect the temperature of the battery to be tested, and the operation is simple and easy to implement, and the test efficiency is improved.

[0108] According to some embodiments of the present application, in the case where the first test port 302 includes at least one of the voltage test port, the resistance test port and the current test port, the support seat 30 further includes a switching structure 34 arranged on the first carrier 301, the switching structure 34 is electrically connected with the positive electrode and the negative electrode of the battery to be tested, and at least one of the voltage test port, the resistance test port and the current test port is electrically connected with the switching structure 34.

[0109] The switching structure 34 can be a copper rod or other conductive material, and the switching structure 34 can be two and arranged corresponding to the positive electrode and the negative electrode of the battery to be tested. At least one of the voltage test port, the resistance test port and the current test port is electrically connected with the switching structure 34, which can directly test at least one of the voltage, resistance and current of the battery to be tested.

[0110] Therefore, by arranging the switching structure 34 and electrically connecting it with the positive electrode and the negative electrode of the battery to be tested, the battery to be tested is facilitated to access the power-on state, and the test efficiency is improved.

[0111] According to some embodiments of the present application, the test seat 31 further includes a transmission line 35, one end of the transmission line 35 is used to be electrically connected with the second end of the second test port 312, and the other end is used to be electrically connected with an external test device.

[0112] The transmission line 35 can be a cable with a shielding layer, one end of the transmission line 35 is fixed and electrically connected with the second test port 312, and the other end can be plugged into the external test device. The external test device can process the data signal detected by the first test port 302 and output or display the test result.

[0113] Therefore, the transmission line 35 is used to electrically connect the second test port 312 with the external test device, which improves the flexibility of the test device and facilitates the replacement of different external test devices, and improves the test efficiency.

[0114] According to some embodiments of the present application, the first carrier 301 is provided with a limiting structure 36 for fixing the battery to be tested at a predetermined position.

[0115] The limiting structure 36 can be fixed on the first carrier 301 by bolt connection or in the form of adhesion, and the specific shape and arrangement of the limiting structure 36 are related to the shape of the battery to be tested. For example, if the battery to be tested is a square battery, the limiting structure 36 can be a frame structure to fix the battery to be tested; if the battery to be tested is a cylindrical battery, the limiting structure 36 can be a cylindrical structure to fix the battery to be tested. The specific form of the limiting structure 36 is not limited here.

[0116] Therefore, by arranging the limiting structure 36 to fix the battery to be tested, the stability during the test is improved, and the test efficiency is improved.

[0117] According to some embodiments of the present application, the limiting structure 36 includes a first baffle 361 and a second baffle 362, the first baffle 361 and the second baffle 362 are perpendicular to each other or parallel to each other, and the first baffle 361 and the second baffle 362 abut against the battery to be tested to fix the battery to be tested at a predetermined position.

[0118] The first baffle 361 and the second baffle 362 are both plate-shaped structures, and can limit the position of the battery to be tested in two directions. It should be understood that, Figure 3 and Figure 4 The first baffle 361 and the second baffle 362 identified in the above are only one arrangement of the limiting structure 36, and in other embodiments, the limiting structure 36 can include more than two baffles, and the placement positions of the related baffles can be various, as long as the limiting structure 36 can achieve the fixing effect of the battery to be tested.

[0119] Therefore, by arranging the limiting structure 36 as the first baffle 361 and the second baffle 362, the structure is simple, the cost is low, and the battery to be tested can be fixed for testing.

[0120] According to some embodiments of the present application, at least one of the first baffle 361 and the second baffle 362 has at least one weight-reducing hole.

[0121] The weight-reducing hole can be arranged through at least one of the first baffle 361 and the second baffle 362, and the weight-reducing hole can be circular, square or other shapes, and the number of weight-reducing holes can be multiple.

[0122] Therefore, by arranging the weight-reducing hole, the weight of the support seat 30 can be reduced, the battery to be tested can be more easily disassembled, the portability is better, and the test efficiency is improved.

[0123] The embodiments of the second aspect of the present application provide a battery detection device, which includes the battery detection connecting device in any of the above embodiments, and a test device electrically connected to the second end of the second test port 312 of the battery detection connecting device, for detecting at least two of the current, voltage, internal resistance, swelling force and temperature of the battery to be tested.

[0124] As Figures 3-6 The battery test connecting device includes a support seat 30, a test seat 31 and a driving mechanism 32.

[0125] The support base 30 has a first carrier 301 for fixing a battery to be tested and a first test port 302 disposed on the first carrier 301, a first end of the first test port 302 being configured to be electrically connected to the battery to be tested placed on the first carrier 301, the first test port 302 comprising at least two of a current test port, a voltage test port, an internal resistance test port, an expansion force test port and a temperature test port, wherein the first test port 302 is electrically connectable to a second test port 312 disposed on the test base 31.

[0126] The first carrier 301 is provided with a limiting structure 36 for fixing the battery to be tested at a preset position, the limiting structure 36 comprising a first baffle 361 and a second baffle 362 provided with a plurality of weight-reducing holes, the first baffle 361 and the second baffle 362 being perpendicular to each other, and the first baffle 361 and the second baffle 362 abutting against the battery to be tested to fix the battery to be tested at the preset position.

[0127] In the case where the first test port 302 comprises the temperature test port, the support base 30 further comprises a temperature detection unit disposed on the first carrier 301, the temperature detection unit being configured to detect the temperature of the battery to be tested, and the temperature detection unit being electrically connected to the temperature test port; in the case where the first test port 302 comprises the expansion force test port, the support base 30 further comprises an expansion force detection unit disposed on the first carrier 301, the expansion force detection unit being configured to detect the expansion force of the battery to be tested, and the expansion force detection unit being electrically connected to the expansion force test port; in the case where the first test port 302 comprises at least one of the voltage test port, the resistance test port and the current test port, the support base 30 further comprises a conversion structure 34 disposed on the first carrier 301, the conversion structure 34 being electrically connected to the positive electrode and the negative electrode of the battery to be tested, and the at least one of the voltage test port, the resistance test port and the current test port being electrically connected to the conversion structure 34.

[0128] The first test port 302 is a probe 303, and the probe 303 is disposed through the connecting hole 331 and protrudes from the surface of the protection structure 33 to be electrically connected to the first end of the second test port 312. In addition, the probe 303 is configured to be movable in a direction perpendicular to the surface of the protection structure 33, and an elastic member 304 is disposed between the probe 303 and the protection structure 33, the elastic member 304 being configured to enable the probe 303 to be reset after being moved in the direction perpendicular to the surface of the protection structure 33. The movement distance of the probe 303 in the direction perpendicular to the surface of the protection structure 33 is 8-10 mm, and the angle range of the probe 303 relative to the axial position of the probe 303 is 2-5 degrees.

[0129] In addition, the support base 30 further comprises a protection structure 33 arranged on the first carrier 301, the protection structure 33 is made by sheet metal process, and the first test port 302 is at least partially located in the protection structure 33, so that the first test port 302 is separated from the battery to be tested on the first carrier 301. The protection structure 33 has a containing cavity and a plurality of connecting holes 331 away from the battery to be tested at one end of the containing cavity, and the first test port 302 is connected with the second test port 312 through the connecting holes 331.

[0130] The support base 30 further comprises a first network port electrically connected with the first test port 302, and the test base 31 comprises a second network port arranged corresponding to the first network port, the second network port is used for being connected with the first network port and an external device respectively, so that the data collected by the first test port 302 is transmitted to the external device through the network.

[0131] The support base 30 further comprises a first calibration port arranged on the first carrier 301, one end of the first calibration port is electrically connected with the first test port 302, and the test base 31 further comprises a second calibration port arranged on the second carrier 311, the other end of the first calibration port is connected with one end of the second calibration port, and the other end of the second calibration port is used for being connected with an external calibration device.

[0132] The test base 31 comprises a second carrier 311 and a second test port 312 arranged on the second carrier 311, wherein the first end of the second test port 312 is used for being electrically connected with the second end of the first test port 302, and the second end of the second test port 312 is electrically connected with an external test device through a transmission line 35.

[0133] The driving mechanism 32 can drive the test base 31 and the support base 30 to move relatively, so that the second end of the first test port 302 and the first end of the second test port 312 are electrically connected or disconnected.

[0134] The method for testing the battery to be tested by the battery test connecting device is as follows:

[0135] The battery to be tested is fixed on the first carrier 301, one end of the first test port 302 is electrically connected with the battery to be tested placed on the first carrier 301, one end of the second test port 312 is electrically connected with an external test device, and the driving mechanism 32 drives the test base 31 and the support base 30 located at the test position to move relatively, so that the other end of the first test port 302 and the other end of the second test port 312 are electrically connected, wherein the first test port 302 comprises at least two of a current test port, a voltage test port, an internal resistance test port, an expansion force test port and a temperature test port.

[0136] In addition, in the case that the first test port 302 comprises a temperature test port, the support seat 30 further comprises a temperature detection unit arranged on the first carrier 301, the temperature detection unit being configured to detect the temperature of the battery under test, and the temperature detection unit being electrically connected with the temperature test port; in the case that the first test port 302 comprises an expansion force test port, the support seat 30 further comprises an expansion force detection unit arranged on the first carrier 301, the expansion force detection unit being configured to detect the expansion force of the battery under test, and the expansion force detection unit being electrically connected with the expansion force test port; in the case that the first test port 302 comprises at least one of a voltage test port, a resistance test port and a current test port, the support seat 30 further comprises a switching structure 34 arranged on the first carrier 301, the switching structure 34 being electrically connected with the positive and negative poles of the battery under test, and the at least one of the voltage test port, the resistance test port and the current test port being electrically connected with the switching structure 34.

[0137] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery testing connection device for connecting a battery under test and an external testing device, characterized in that, include: The support base has a first carrier and a first test port disposed on the first carrier. The first carrier is used to fix and support the battery under test, and the first end of the first test port is used to electrically connect with the battery under test. The test socket includes a second carrier and a second test port disposed on the second carrier. A first end of the second test port is used to be electrically connected to a second end of the first test port, and a second end of the second test port is used to be electrically connected to the external test equipment. A driving mechanism is used to drive the test base and the support base to move relative to each other, so that the second end of the first test port and the first end of the second test port are electrically connected or disconnected. The first test port includes at least two of the following: a current test port, a voltage test port, an internal resistance test port, an expansion force test port, and a temperature test port.

2. The battery testing connection device according to claim 1, characterized in that, The support base includes: A protective structure is disposed on the first carrier, wherein the first test port is at least partially located within the protective structure, such that the first test port is separated from the battery under test on the first carrier.

3. The battery testing connection device according to claim 2, characterized in that, The protective structure is manufactured using sheet metal processing.

4. The battery testing connection device according to claim 2 or 3, characterized in that, The protective structure has a receiving cavity and a plurality of connection holes located at the end of the receiving cavity away from the battery under test, and the first test port is connected to the second test port through the connection holes.

5. The battery testing connection device according to claim 4, characterized in that, The first test port is a probe, and the probe passes through the connection hole and protrudes from the surface of the protective structure for electrical connection with the first end of the second test port.

6. The battery testing connection device according to claim 5, characterized in that, The probe is configured to move in a direction perpendicular to the surface of the protective structure. An elastic element is provided between the probe and the protective structure, the elastic element being used to allow the probe to move in a direction perpendicular to the surface of the protective structure and then reset.

7. The battery testing connection device according to claim 6, characterized in that, The probe moves 8-10 mm in a direction perpendicular to the surface of the protective structure.

8. The battery testing connection device according to any one of claims 5-7, characterized in that, The first end of the probe protruding from the protective structure is configured to swing relative to the second end of the probe connected to the protective structure.

9. The battery testing connection device according to claim 8, characterized in that, The maximum angle at which the first end of the probe swings relative to the second end of the probe is greater than or equal to 2 degrees and less than or equal to 5 degrees.

10. The battery testing connection device according to any one of claims 5-9, characterized in that, The second test port is a socket that mates with the probe, and the number of sockets is the same as the number of probes and they are set in a one-to-one correspondence.

11. The battery testing connection device according to any one of claims 1-10, characterized in that, The support base also includes: The first network port is electrically connected to the first test port. The test socket includes a second network port corresponding to the first network port. The second network port is used to connect to the first network port and an external device, respectively, so that the data collected by the first test port can be transmitted to the external device through the network.

12. The battery testing connection device according to any one of claims 1-11, characterized in that, The support base also includes a first calibration port disposed on the first carrier, one end of the first calibration port being electrically connected to the first test port. The test fixture also includes a second calibration port disposed on the second carrier, the other end of the first calibration port being connected to one end of the second calibration port, and the other end of the second calibration port being used to connect to an external calibration device.

13. The battery testing connection device according to any one of claims 1-12, characterized in that, In the case where the first test port includes the temperature test port, the support base further includes a temperature detection unit disposed on the first carrier, the temperature detection unit being used to detect the temperature of the battery under test, and the temperature detection unit being electrically connected to the temperature test port.

14. The battery testing connection device according to any one of claims 1-13, characterized in that, When the first test port includes at least one of the voltage test port, the resistance test port, and the current test port, the support base further includes an adapter structure disposed on the first carrier, the adapter structure being electrically connected to the positive and negative terminals of the battery under test, and at least one of the voltage test port, the resistance test port, and the current test port being electrically connected to the adapter structure.

15. The battery testing connection device according to any one of claims 1-14, characterized in that, The test socket also includes a transmission line, one end of which is used to be electrically connected to the second end of the second test port, and the other end is used to be electrically connected to the external test equipment.

16. The battery testing connection device according to any one of claims 1-15, characterized in that, The first carrier is provided with a limiting structure for fixing the battery under test in a preset position.

17. The battery testing connection device according to claim 16, characterized in that, The limiting structure includes a first baffle and a second baffle, which are perpendicular or parallel to each other. The first baffle and the second baffle abut against the battery under test to fix the battery under test in a preset position.

18. The battery testing connection device according to claim 16 or 17, characterized in that, At least one of the first baffle and the second baffle has at least one weight-reducing hole.

19. A battery testing device, characterized in that, include: The battery detection connection device as described in any one of claims 1-18, and The testing device is electrically connected to the second end of the second test port of the battery detection connection device to detect at least two of the following parameters of the battery under test: current, voltage, internal resistance, expansion force, and temperature.

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