Battery management module automatic testing device and testing machine thereof

Abstract

The invention discloses a battery management module automatic test device and a test machine thereof, and the device comprises a test bench, a cleaning shield, a driving assembly, a test platform, an end test assembly, an upper test assembly and a lower test assembly, and the test bench is horizontally arranged; the driving assembly is arranged on the supporting assembly; the cleaning shield is erected on the test board; the test platform is arranged on the driving assembly, and a battery to be tested is borne and fixed on the test platform; the end testing assembly is arranged at the side part close to the other end of the driving assembly and used for connecting the end part of the battery; the upper testing assembly and the lower testing assembly are arranged on the upper side and the lower side of the testing platform respectively and used for connecting the battery from the upper portion and the lower portion respectively. According to the invention, the automatic access test of the interfaces at the end part and on the upper and lower sides of the power battery is realized at the same time, the test efficiency is improved while the access precision is ensured, the insertion precision is effectively ensured by integrating the elastic sleeve type pre-pressing before insertion in a multi-probe linkage insertion mode, and the bending or breaking of the probes is reduced.

Description

Technical Field

[0001] The present invention relates to the field of automatic testing of power batteries, and in particular to an automatic testing device for a battery management module and a testing machine thereof. Background Art

[0002] Power batteries are the power source for tools, mostly referring to batteries that power electric cars, electric trains, electric bicycles, and golf carts. Power batteries are the core components of new energy vehicles and an important direction for future energy transformation.

[0003] The manufacturing process of power batteries involves a parameter detection process. The power batteries include various types of external interfaces, which are arranged at the ends and upper and lower sides of the power batteries. In the automated detection process of power batteries, a test device needs to be designed as an auxiliary tool to connect the power batteries to the test circuit. While carrying and supporting the power batteries, the test device needs to connect the external interfaces of the power batteries of different types and arranged at different positions to the test circuit for testing. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a battery management module automatic testing device and a testing machine thereof, which simultaneously realizes automatic access testing of the end of the power battery and the upper and lower side interfaces, ensures access accuracy while improving test efficiency, and integrates an elastic sleeve-type pre-pressure before insertion for a multi-probe linkage insertion method to effectively ensure plug-in accuracy and reduce bending or breakage of probes.

[0005] The technical solution adopted by the present invention is as follows: a battery management module automatic testing device is arranged in a battery testing machine and is used for battery testing, comprising a test bench, a cleaning shield, a driving component, a test platform, an end test component, an upper test component and a lower test component, wherein the test bench is placed horizontally; the driving component is arranged on a supporting component and outputs power in a straight line direction, and one end of the driving component is a loading position; the cleaning shield is mounted on the test bench and is located at the loading position; the test platform is arranged on the driving component, and a battery to be tested is carried and fixed on the test platform; the end test component is arranged on the side close to the other end of the driving component, for connecting the end of the battery; the upper test component and the lower test component are respectively arranged on the upper and lower sides of the test platform, for connecting the battery from the top and the bottom respectively.

[0006] Preferably, the cleaning shield is a U-shaped shield structure, with its opening arranged toward the driving assembly, and at least two gas nozzles are respectively arranged on both sides of the opening for cleaning the battery with high-pressure gas before testing.

[0007] Preferably, the test bench includes a support plate, a carrying box and a slide rail, wherein the support plate is horizontally arranged; the carrying box is a rectangular frame structure, the carrying box is arranged on the support plate, and the top is open; the slide rail includes two slide rails, the two slide rails are arranged in parallel and spaced apart in the carrying box, and are arranged in the same direction as the driving component; the driving component is arranged in the carrying box; the test platform is horizontally arranged on the carrying box, and is slidably connected to the slide rail, the bottom of the test platform is connected to the output end of the driving component, and is driven by the driving component to move back and forth along the slide rail in a straight line, so as to disassemble and assemble the battery at the loading position, and send the battery to the test position between the end test component, the upper test component and the lower test component.

[0008] Preferably, the test platform includes a platform support, a column, a bearing plate, a limit block and a limit column, wherein the platform support is horizontally arranged on the bearing box and is slidably connected to the slide rail; the column includes at least two, and at least two columns are vertically arranged on the platform support; the bearing plate is horizontally arranged on at least two columns, and at least two bearing stations are provided on the bearing plate for carrying at least two batteries; at least two limit blocks are provided at the bearing station, and at least two limit blocks are provided along the edge of the bearing station for limiting the battery; the limit column is vertically arranged on the side of the bearing station, and is used to be inserted into the through hole at the end of the battery to limit the battery; at least two test slots are also provided at the bearing station so that the lower test component can pass upward to connect the battery.

[0009] Preferably, the end test assembly includes an end support, an end cylinder, an end support block and an end side head, wherein the end support is arranged on the test bench; the end cylinder is arranged on the side wall of the end support, and the output end is arranged toward the test platform; the end support block is arranged on the output end of the end cylinder; the end side head is arranged on the end support block, and one end is arranged toward the battery so as to be inserted into the interface of the battery end, and the other end of the end side head is connected to an external test circuit.

[0010] Preferably, the upper test assembly includes a test bracket, a pre-stressing component and an upper test component, wherein the test bracket is mounted on a test bench, and a mounting slot extending vertically therethrough is provided in the middle of the test bracket; the pre-stressing component includes at least two groups, at least two groups of pre-stressing components are upside down at the lower part of the top plate of the test bracket, and are used to pre-stress the battery; the upper test component includes at least two groups, at least two groups of upper test components are arranged on the test bracket, and extend downward through the mounting slot, and are used to connect the battery from above.

[0011] Preferably, the upper measuring component includes an upper measuring support, an upper measuring cylinder, an upper measuring slide, an upper measuring support plate and a test piece, wherein the upper measuring support is arranged on the top plate of the test bracket and is located at the edge of the mounting slot; the upper measuring cylinder is arranged on the side wall of the upper measuring support and the output end is arranged downward; the upper measuring slide is connected to the output end of the upper measuring cylinder and is driven by the upper measuring cylinder to move up and down; the upper measuring support plate is horizontally arranged on the upper measuring slide; the test piece includes at least two groups, at least two groups of test pieces are arranged on the upper measuring support plate at intervals, and descend with the upper measuring support plate to connect to the battery; the upper measuring support plate is horizontally arranged on the upper measuring slide.

[0012] Preferably, the test piece includes a test socket, a test head, a PCB board and a test probe, wherein the test socket is arranged at the bottom of the upper test support plate, and a slide bar with a strip structure is provided at the bottom of the test socket; a groove of an adjustment structure is provided on the top of the test head, and the test head is connected to the lower part of the test socket by sliding into the slide bar through the groove; at least two test holes are provided on the test head, and the test holes pass through the test head from top to bottom; the PCB board is arranged on the top of the upper test support plate; the test probes include at least two, and the tops of at least two test probes are connected to the PCB board, and the test probes pass downward through the test socket and the test head and through the test holes so as to be inserted into the battery.

[0013] Preferably, the test seat is connected to the bottom of the upper test support plate through an inverted connecting column, and a gap space is left between the upper test support plate, a spring is provided in the gap space, and the two ends of the spring respectively press against the upper test support plate and the test seat; the test seat is slidably connected to the connecting column, and elastic buffering is provided by the spring.

[0014] A testing machine for an automatic testing device of a battery management module.

[0015] The beneficial effects of the present invention are: In view of the defects and shortcomings of the prior art, the present invention independently develops and designs a battery management module automatic testing device and a testing machine thereof, which can simultaneously realize automatic access testing of the power battery end and the upper and lower side interfaces, ensure access accuracy while improving test efficiency, and integrate elastic sleeve pre-pressure before insertion for the multi-probe linkage insertion method to effectively ensure the plug-in accuracy and reduce the bending or breakage of the probes.

[0016] The present invention aims to provide a test process section used in the power battery manufacturing process, which belongs to the process for automatically accessing the test circuit through the end of the power battery and the interfaces on the upper and lower sides in the power battery automated test process, and aims to improve the accuracy and efficiency of power battery test access. Specifically, the present invention as a whole includes a test bench, a drive component, a test platform, an end test component, an upper test component and a lower test component. The test bench is horizontally arranged on the machine platform of the test machine, and the drive component is arranged linearly on the test bench along the front and rear directions. The front side of the test bench is the loading position, and the rear side of the test bench is the test position. The drive component drives the test platform arranged thereon to move back and forth linearly between the loading position and the test position, so as to take and place the battery at the loading position and perform test access at the test position; a cleaning shield is also provided at the loading position, and while the cleaning shield is used for dust prevention and protection, high-pressure gas is blown out by the air nozzles arranged on the left and right sides of the cleaning shield to clean the surface of the battery before testing. The test platform of the present invention is used to carry the power battery to be tested, and drive the power battery to be automatically transferred between the loading position and the test position. A plurality of carrying stations are arranged on the test platform, which can simultaneously carry and limit a plurality of power batteries to be tested, so as to improve the test efficiency. A plurality of limit blocks and limit columns inserted into the side connecting blocks of the battery are used at the carrying stations as the limit structures during the battery test, so as to ensure the position stability of the battery during the movement and testing process. At the same time, in order to ensure that the lower test component is connected to the battery, a test slot which runs through from top to bottom is also provided on the test platform, so as to facilitate the upward insertion of the lower test component.The end test assembly, upper test assembly and lower test assembly of the present invention are arranged at the test position. When the test platform drives the battery to move to the test position, the end test assembly, upper test assembly and lower test assembly approach and connect the battery from the end, upper part and lower part of the battery respectively. The upper test assembly and lower test assembly of the present invention need to be plugged into the connectors on the upper and lower side walls of the battery in the form of multiple test probes. Since the probe jack of the connector is small and multiple test probes need to be plugged in at the same time, it is very easy for the test probes to bend or break during the plugging process, resulting in failure of the test circuit access. Based on the above situation, the upper test assembly of the present invention uses a test bracket erected above the test position as a bearing frame, and the top plate bottom of the test bracket is provided. The part is provided with multiple groups of pre-stressing components and upper testing components. The pre-stressing components are used to pre-stress and flatten the battery from above before testing, so as to ensure the overall flatness of the battery before connecting the test probe and maintain the position stability during the test; the upper testing components are used to insert the test probe into the connector of the battery from above; specifically, the upper testing component uses the upper testing support as a bearing structure, and the upper testing support is arranged at the edge of the mounting groove of the test bracket, and the side wall thereof is provided with an upper testing cylinder for providing linear power in the vertical direction to drive the upper testing slide to drive the upper testing support plate to move up and down; the special thing is that a group of test pieces are provided on the upper testing support plate of the present invention, and the test piece uses the test seat as a connecting structural member, and a strip-shaped slide is provided at the bottom of the test seat, and the test head passes through The embedding groove of the strip structure arranged on the top thereof is embedded with the sliding bar to realize the connection with the test seat. During the installation process, the test head can be quickly disassembled and assembled by sliding into the sliding bar through the embedding groove. After the test head is slid into place and installed, it can be fixed to the test seat by screws. A plurality of test holes that pass through from top to bottom are opened on the test head corresponding to the test probes. The tops of the plurality of test probes are connected to the PCB board arranged on the upper part of the upper test support plate, and downwardly pass through the test seat and extend into the test holes. The inner diameter of the test hole is larger than the outer diameter of the test probe. The test probe can slide freely in the vertical direction in the test hole. During the test process, the test hole is covered on the outside of the test probe to protect the test probe and avoid its bending, deformation or breakage. At the same time, the test probe of the present invention A flexible connection that is movable in the vertical direction is adopted between the seat and the upper test support plate. The flexible elastic force is provided by the spring, so that the test head arranged below it has flexible movable space in the vertical direction. In the natural state, the elastic force of the spring pushes the test seat and the test head to move downward, so that the test probe is relatively retracted into the test hole. During the test, when the test support plate descends and approaches the battery, the test head first contacts the battery surface, which plays a role in local pre-compression and flattening of the battery connector position before the test, so as to ensure the local flatness when the test probe is inserted into the connector. As the battery support plate continues to descend, the bottom surface of the test head is subjected to the upward force of the battery, and the spring is compressed upward, so that the test probe gradually extends from the test hole and is inserted into the connector to complete the insertion action. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention.

[0018] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 3 This is one of the three-dimensional structural schematic diagrams of the present invention after the components are hidden.

[0020] Figure 4 This is the second schematic diagram of the three-dimensional structure after the hidden components of the present invention.

[0021] Figure 5 This is the third schematic diagram of the three-dimensional structure after the components are hidden in the present invention.

[0022] Figure 6 This is the fourth schematic diagram of the three-dimensional structure after the hidden components of the present invention.

[0023] Figure 7 This is the fifth schematic diagram of the three-dimensional structure after the hidden components of the present invention.

[0024] Figure 8 for Figure 6 The enlarged structural diagram at point I in the middle.

[0025] Fig. 9 This is the sixth schematic diagram of the three-dimensional structure after the hidden components of the present invention.

[0026] Fig.10 for Fig. 9 The enlarged structural diagram at II in the middle.

[0027] Fig.11 This is one of the three-dimensional structural schematic diagrams of the test assembly of the present invention.

[0028] Fig.12 This is the second schematic diagram of the three-dimensional structure of the test assembly of the present invention.

[0029] Fig.13 This is one of the three-dimensional structural schematic diagrams of the test head of the present invention.

[0030] Fig.14 for Fig.13 The enlarged structural diagram at II in the middle.

[0031] Fig.15 This is the second schematic diagram of the three-dimensional structure of the test head of the present invention.

[0032] Fig.16 It is a schematic diagram of the component structure of the test head of the present invention.

[0033] Fig.17 This is one of the three-dimensional structural schematic diagrams of the pre-pressing component of the present invention.

[0034] Fig.18 This is the second schematic diagram of the three-dimensional structure of the pre-pressing component of the present invention.

[0035] In the figure: 1. Test bench; 2. Cleaning shield; 3. Drive assembly; 4. Test platform; 5. End test assembly; 6. Upper test assembly; 7. Lower test assembly; A. Test slot; 0. Battery; 11. Support plate; 12. Load-bearing box; 13. Slide rail; 51. end support; 52. end cylinder; 53. end support block; 54. end probe; 41. Platform support; 42. Column; 43. Load-bearing plate; 44. Limit block; 45. Limit column; B. Test slot; 61. Test bracket; 62. Upper test component; 63. Pre-press component; C. Mounting slot; 621, upper test support; 622, upper test cylinder; 623, upper test slide; 624, upper test support plate; 625, test seat; 626, test head; 627, PCB board; 628, test probe; 629, slide bar; D, test hole; 631. Connecting column; 632. Preloading support; 633. Elastic column; 634. Flexible preloading block; 635. Preloading head. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0039] like Figures 1 to 7 As shown, the present invention proposes an automatic testing device for a battery management module, which is arranged in a battery testing machine and is used for battery testing, comprising a test bench 1, a cleaning shield 2, a driving component 3, a test platform 4, an end test component 5, an upper test component 6 and a lower test component 7, wherein the test bench 1 is placed horizontally; the driving component 3 is arranged on the supporting component 1 and outputs power in a straight line direction, and one end of the driving component 3 is a loading position; the cleaning shield 2 is mounted on the test bench 1 and is located at the loading position; the test platform 4 is arranged on the driving component 3, and a battery 0 to be tested is carried and fixed on the test platform 4; the end test component 5 is arranged on the side close to the other end of the driving component 3, and is used to connect the end of the battery 0; the upper test component 6 and the lower test component 7 are respectively arranged on the upper and lower sides of the test platform 4, and are used to connect the battery 0 from the top and the bottom respectively.

[0040] The cleaning shield 2 is a U-shaped shield structure, with its opening arranged toward the driving assembly 3 , and at least two gas nozzles are provided on both sides of the opening for cleaning the battery 0 with high-pressure gas before testing.

[0041] The test bench 1 includes a support plate 11, a carrying box 12 and a slide rail 13, wherein the support plate 11 is horizontally arranged; the carrying box 12 is a rectangular frame structure, the carrying box 12 is arranged on the support plate 11, and the top is open; the slide rail 13 includes two slide rails, the two slide rails 13 are arranged in parallel and spaced apart in the carrying box 12, and are arranged in the same direction as the driving component 3; the driving component 3 is arranged in the carrying box 12; the test platform 4 is horizontally arranged on the carrying box 12, and is slidably connected to the slide rail 13, the bottom of the test platform 4 is connected to the output end of the driving component 3, and is driven by the driving component 3 to move back and forth along the slide rail 13 in a straight line, so as to disassemble and assemble the battery 0 at the loading position, and send the battery 0 to the test position between the end test component 5, the upper test component 6 and the lower test component 7.

[0042] The present invention designs a battery management module automatic test device and its test machine that realizes automatic access test of the end and upper and lower interfaces of the power battery at the same time, ensures access accuracy while improving test efficiency, and integrates elastic sleeve pre-pressure before insertion for the multi-probe linkage insertion method to effectively ensure plug-in accuracy and reduce probe bending or breakage. The present invention aims to provide a test process section used in the power battery manufacturing process, which belongs to the process of automatically accessing the test circuit through the end and upper and lower interfaces of the power battery in the power battery automation test process, and aims to improve the power battery test access accuracy and efficiency. Specifically, the present invention as a whole comprises a test bench, a drive component, a test platform, an end test component, an upper test component and a lower test component. The test bench is horizontally arranged on the machine platform of the test machine. The drive component is linearly arranged on the test bench along the front-to-back direction. The front side of the test bench is a loading position, and the rear side of the test bench is a testing position. The drive component drives the test platform arranged thereon to move linearly back and forth between the loading position and the testing position, so as to carry out the taking and placing of batteries at the loading position and the test access at the testing position. A cleaning shield is also provided at the loading position. While the cleaning shield is used for dust prevention and protection, high-pressure gas is blown out by air nozzles arranged on the left and right sides of the cleaning shield to clean the surface of the battery before testing. The test platform of the present invention is used to carry the power battery to be tested, and drive the power battery to automatically transfer between the loading position and the test position. A plurality of carrying stations are arranged on the test platform, which can simultaneously carry and limit a plurality of power batteries to be tested, so as to improve the test efficiency. The carrying stations use a plurality of limit blocks and limit columns inserted into the battery side connection blocks as the limit structures during the battery test, so as to ensure the position stability of the battery during the movement and test. At the same time, in order to ensure that the lower test assembly is connected to the battery, a test slot that runs through from top to bottom is also arranged on the test platform, so as to facilitate the lower test assembly to pass upward. The end test assembly, the upper test assembly and the lower test assembly of the present invention are arranged at the test position. When the test platform drives the battery to move to the test position, the end test assembly, the upper test assembly and the lower test assembly approach and connect the battery from the end, the upper part and the lower part of the battery respectively. Example 2

[0043] like Figure 6 , Figure 8 As shown, the end test assembly 5 of the present invention includes an end support 51, an end cylinder 52, an end support block 53 and an end side head 54, wherein the end support 51 is arranged on the test bench 1; the end cylinder 52 is arranged on the side wall of the end support 51, and the output end is arranged toward the test platform 4; the end support block 53 is arranged on the output end of the end cylinder 52; the end side head 54 is arranged on the end support block 53, and one end is arranged toward the battery 0 so as to be inserted into the interface at the end of the battery 0, and the other end of the end side head 54 is connected to the external test circuit. Example 3

[0044] like Figures 9 and 10 As shown, the test platform 4 of the present invention includes a platform support 41, a column 42, a bearing plate 43, a limit block 44 and a limit column 45, wherein the platform support 41 is horizontally arranged on the bearing box 12 and is slidably connected to the slide rail 13; the column 42 includes at least two, and at least two columns 42 are vertically arranged on the platform support 41; the bearing plate 43 is horizontally arranged on at least two columns 42, and at least two bearing stations are provided on the bearing plate 43 for bearing at least two batteries 0; at least two limit blocks 44 are provided at the bearing station, and at least two limit blocks 44 are provided along the edge of the bearing station for limiting the battery 0; the limit column 45 is vertically arranged on the side of the bearing station for inserting into the through hole at the end of the battery 0 to limit the battery 0; at least two test slots B are also provided at the bearing station so that the lower test component 7 can pass upward and connect the battery 0 Example 4

[0045] like Figures 11 to 10 As shown, the upper test assembly 6 of the present invention includes a test bracket 61, a pre-stressing component 63 and an upper test component 62, wherein the test bracket 61 is mounted on the test bench 1, and a mounting groove C is provided in the middle of the test bracket 61, which runs through the upper and lower parts; the pre-stressing component 63 includes at least two groups, at least two groups of pre-stressing components 63 are upside down at the lower part of the top plate of the test bracket 61, and are used for pre-stressing the battery 0; the upper test component 62 includes at least two groups, at least two groups of upper test components 62 are arranged on the test bracket 61, and extend downward through the mounting groove C, and are used for connecting the battery 0 from above. Example 5

[0046] like Figures 13 to 16 As shown, the upper measuring component 62 of the present invention includes an upper measuring support 621, an upper measuring cylinder 622, an upper measuring slide 623, an upper measuring support plate 624 and a test piece, wherein the upper measuring support 621 is arranged on the top plate of the test bracket 61 and is located at the edge of the mounting slot C; the upper measuring cylinder 622 is arranged on the side wall of the upper measuring support 621, and the output end is arranged downward; the upper measuring slide 623 is connected to the output end of the upper measuring cylinder 622, and is driven by the upper measuring cylinder 622 to move up and down; the upper measuring support plate 624 is horizontally arranged on the upper measuring slide 623; the test piece includes at least two groups, at least two groups of test pieces are arranged at intervals on the upper measuring support plate 624, and descend with the upper measuring support plate 624 to connect to the battery 0.

[0047] The test piece includes a test socket 625, a test head 626, a PCB board 627 and a test probe 628, wherein the test socket 625 is arranged at the bottom of the upper test support plate 624, and a slide bar 629 with a strip structure is arranged at the bottom of the test socket 625; a groove of an adjustment structure is provided at the top of the test head 626, and the test head 626 is connected to the lower part of the test socket 625 by sliding into the slide bar 629 through the groove; at least two test holes D are provided on the test head 626, and the test holes D pass through the test head 626 from top to bottom; the PCB board 627 is arranged at the top of the upper test support plate 624; the test probe 628 includes at least two, and the tops of at least two test probes 628 are connected to the PCB board 627, and the test probes 628 pass downward through the test socket 625 and the test head 626, and pass through the test hole D so as to be inserted into the battery 0.

[0048] The test seat 625 is connected to the bottom of the upper test support plate 624 through an inverted connecting column, and a gap space is left between the upper test support plate 624. A spring is provided in the gap space, and the two ends of the spring respectively press against the upper test support plate 624 and the test seat 625; the test seat 625 is slidably connected to the connecting column, and elastic buffering is provided by the spring.

[0049] The upper test assembly and the lower test assembly of the present invention need to be plugged into the connectors on the upper and lower side walls of the battery in the form of multiple test probes. Since the probe jack of the connector is small and multiple test probes need to be plugged in at the same time, the test probes are very likely to bend or break during the plugging process, resulting in failure of the test circuit access. Based on the above situation, the upper test assembly of the present invention uses a test bracket erected above the test position as a bearing frame, and multiple groups of pre-stressing components and upper test components are simultaneously provided at the bottom of the top plate of the test bracket. The pre-stressing component is used to pre-stress and flatten the battery from above before testing, so as to ensure the overall flatness of the battery before connecting the test probe and maintain the test process. The upper test component is used to insert the test probe into the connector of the battery from above; specifically, the upper test component uses the upper test support as a bearing structure, the upper test support is arranged at the edge of the installation slot of the test bracket, and an upper test cylinder is provided on its side wall to provide linear power in the vertical direction to drive the upper test slide to drive the upper test support plate to move up and down; the special feature is that a test piece is provided on the upper test support plate of the present invention, and the test piece uses the test seat as a connecting structural member, and a strip-shaped slide bar is provided at the bottom of the test seat, and the test head is engaged with the slide bar through the embedded groove of the strip structure arranged on the top thereof to achieve connection with the test seat, and during the installation process, the test head is connected to the test seat through the embedded groove The test head can be quickly disassembled and assembled by sliding into the slide bar. After the test head is slid into place and installed, it can be fixed to the test seat by screws. The test head is provided with a plurality of test holes which pass through from top to bottom and correspond to the test probes. The tops of the plurality of test probes are connected to a PCB board arranged on the upper part of the upper test support plate, and downwardly pass through the test seat and extend into the test holes. The inner diameter of the test hole is larger than the outer diameter of the test probe. The test probe can slide freely in the vertical direction in the test hole. During the test, the test hole is covered on the outside of the test probe to protect the test probe and avoid bending, deformation or breakage. At the same time, a flexible connection which is movable in the vertical direction is adopted between the test seat and the upper test support plate of the present invention. In the connection mode, a spring is used to provide flexible elastic force, so that the test head arranged thereunder has flexible activity space in the vertical direction. In the natural state, the elastic force of the spring pushes the test seat and the test head to move downward, so that the test probe is relatively retracted into the test hole. During the test, when the test support plate descends and approaches the battery, the test head first contacts the battery surface, which plays a role in local pre-compression and flattening of the battery connector position before the test, so as to ensure the local flatness when the test probe is inserted into the connector. As the battery support plate continues to descend, the bottom surface of the test head is subjected to the upward force of the battery, and the spring is compressed upward, so that the test probe gradually extends from the test hole and is inserted into the connector to complete the insertion action. Example 6

[0050] like Figure 17 to Figure 18As shown, the prestressing component 63 of the present invention includes a connecting column 631, a prestressing support 632, an elastic column 633, a flexible prestressing block 634 and a prestressing head 635, wherein the connecting column 631 is connected to the test bracket 631; the prestressing support 632 is arranged at the bottom of the connecting column 631; the flexible prestressing block 634 is arranged at intervals below the prestressing support 632, and is flexibly connected to the prestressing support 632 through the elastic column 633; ​​the prestressing head 635 includes at least two, and at least two prestressing heads 635 are arranged at the bottom of the flexible prestressing block 634.

[0051] Furthermore, a cylinder can be arranged on the test bracket 631, and the output end of the cylinder passes through the test bracket 631 and is connected to the pre-stress support 632, so as to drive the pre-stress support 632 to move up and down; at the same time, the connecting column 631 can be slidably inserted on the test bracket 631, so as to play a guiding and limiting role during the lifting and lowering movement of the pre-stress support 632. Example 7

[0052] The invention discloses a testing machine for an automatic testing device of a battery management module.

[0053] The embodiments of the present invention are only to introduce its specific implementation methods and are not intended to limit its protection scope. The technicians in this industry can make some modifications inspired by this embodiment, so any equivalent changes or modifications made according to the scope of the patent of the present invention are within the scope of the patent claims of the present invention.

Claims

1. A battery management module automatic testing device, arranged in a battery testing machine, for battery testing, characterized in that: It comprises a test bench (1), a cleaning shield (2), a driving assembly (3), a test platform (4), an end test assembly (5), an upper test assembly (6) and a lower test assembly (7), wherein: The test bench (1) is placed horizontally; The driving component (3) is arranged on the supporting component (1) and outputs power in a linear direction, and one end of the driving component (3) is a loading position; The cleaning shield (2) is mounted on the test bench (1) and is located at the loading position; The test platform (4) is arranged on the driving assembly (3), and the battery (0) to be tested is carried and fixed on the test platform (4); The end test assembly (5) is arranged on a side portion close to the other end of the drive assembly (3) and is used to connect the end of the battery (0); The upper test assembly (6) and the lower test assembly (7) are respectively arranged on the upper and lower sides of the test platform (4), and are used to connect the battery (0) from the top and bottom respectively.

2. The automatic test device for a battery management module according to claim 1, characterized in that: The cleaning shield (2) is a U-shaped shield structure, the opening of which is arranged in the direction of the drive assembly (3), and at least two gas nozzles are respectively arranged on both sides of the opening, for cleaning the battery (0) with high-pressure gas before testing.

3. The automatic testing device for a battery management module according to claim 1, characterized in that: The test bench (1) comprises a support plate (11), a bearing box (12) and a slide rail (13), wherein the support plate (11) is arranged horizontally; the bearing box (12) is a rectangular frame structure, the bearing box (12) is arranged on the support plate (11) and has an open top; the slide rail (13) comprises two slide rails, the two slide rails (13) are arranged in parallel and spaced apart in the bearing box (12) and are arranged in the same direction as the drive assembly (3); the drive assembly (3) is arranged in the bearing box (12); the test platform (4) is arranged horizontally on the bearing box (12) and is slidably connected to the slide rail (13); the bottom of the test platform (4) is connected to the output end of the drive assembly (3) and is driven by the drive assembly (3) to move back and forth linearly along the slide rail (13) so as to disassemble and assemble the battery (0) at the loading position and to feed the battery (0) to the test position between the end test assembly (5), the upper test assembly (6) and the lower test assembly (7).

4. The automatic test device for a battery management module according to claim 3, characterized in that: The test platform (4) comprises a platform support (41), a column (42), a bearing plate (43), a limit block (44) and a limit column (45), wherein the platform support (41) is horizontally arranged on the bearing box (12) and is slidably connected to the slide rail (13); the columns (42) comprise at least two, and at least two columns (42) are vertically arranged on the platform support (41); the bearing plate (43) is horizontally arranged on at least two columns (42), and the bearing plate (43) At least two carrying stations are provided on the top for carrying at least two batteries (0); at least two limiting blocks (44) are provided at the carrying stations, and the at least two limiting blocks (44) are provided along the edges of the carrying stations for limiting the batteries (0); the limiting columns (45) are vertically provided on the sides of the carrying stations, and are used to be inserted into through holes at the ends of the batteries (0) to limit the batteries (0); at least two test slots (B) are also provided at the carrying stations, so that the lower test assembly (7) can pass through upwards to connect to the batteries (0).

5. The automatic test device for a battery management module according to claim 1, characterized in that: The end test assembly (5) comprises an end support (51), an end cylinder (52), an end support block (53) and an end side head (54), wherein the end support (51) is arranged on the test bench (1); the end cylinder (52) is arranged on the side wall of the end support (51), and the output end is arranged in the direction of the test platform (4); the end support block (53) is arranged on the output end of the end cylinder (52); the end side head (54) is arranged on the end support block (53), and one end is arranged in the direction of the battery (0) so as to be inserted into the interface of the end of the battery (0), and the other end of the end side head (54) is connected to an external test circuit.

6. The automatic test device for a battery management module according to claim 1, characterized in that: The upper test assembly (6) comprises a test bracket (61), a pre-pressing component (63) and an upper test component (62), wherein the test bracket (61) is mounted on the test bench (1), and a mounting through slot (C) is provided in the middle of the test bracket (61) and runs through from top to bottom; the pre-pressing component (63) comprises at least two groups, and at least two groups of pre-pressing components (63) are hung upside down on the lower part of the top plate of the test bracket (61) and are used to pre-press the battery (0); the upper test component (62) comprises at least two groups, and at least two groups of upper test components (62) are arranged on the test bracket (61) and extend downward through the mounting through slot (C) and are used to connect the battery (0) from above.

7. The automatic test device for a battery management module according to claim 6, characterized in that: The upper measuring component (62) comprises an upper measuring support (621), an upper measuring cylinder (622), an upper measuring slide (623), an upper measuring support plate (624) and a test piece, wherein the upper measuring support (621) is arranged on the top plate of the test bracket (61) and is located at the edge of the mounting slot (C); the upper measuring cylinder (622) is arranged on the side wall of the upper measuring support (621) and the output end is arranged downward; the upper measuring slide (623) is connected to the output end of the upper measuring cylinder (622) and is driven by the upper measuring cylinder (622) to move up and down; the upper measuring support plate (624) is horizontally arranged on the upper measuring slide (623); the test piece comprises at least two groups, and the at least two groups of test pieces are arranged on the upper measuring support plate (624) at intervals and descend with the upper measuring support plate (624) to connect to the battery (0).

8. The automatic test device for a battery management module according to claim 7, characterized in that: The test piece comprises a test seat (625), a test head (626), a PCB board (627) and a test probe (628), wherein the test seat (625) is arranged at the bottom of the upper test support plate (624), and a sliding bar (629) with a strip structure is arranged at the bottom of the test seat (625); a groove with an adjustment structure is opened at the top of the test head (626), and the test head (626) is connected to the lower part of the test seat (625) by sliding into the sliding bar (629) through the groove; the test head At least two test holes (D) are provided on the upper test support plate (626), and the test holes (D) pass through the test head (626) from top to bottom; the PCB board (627) is arranged on the top of the upper test support plate (624); the test probes (628) include at least two, and the tops of the at least two test probes (628) are connected to the PCB board (627), and the test probes (628) pass downward through the test seat (625) and the test head (626), and pass through the test holes (D) so as to be inserted into the battery (0).

9. The automatic test device for a battery management module according to claim 8, characterized in that: The test seat (625) is connected to the bottom of the upper test support plate (624) via an inverted connecting column, and a gap space is left between the upper test support plate (624). A spring is arranged in the gap space, and the two ends of the spring respectively press against the upper test support plate (624) and the test seat (625); the test seat (625) is slidably connected to the connecting column, and an elastic buffer is provided by the spring.

10. A testing machine comprising the battery management module automatic testing device according to claim 1.

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