A BMS product support adjustment mechanism and corresponding testing device

Abstract

This divisional application provides a BMS product support and adjustment mechanism and a corresponding test device, the test device including a first mounting plate, a test assembly, four sets of limit assemblies and a first adjustment assembly; one side wall of the first mounting plate is slidably connected to the test assembly, and a second mounting plate is fixedly connected to the outer wall of the first mounting plate and one side close to the test assembly, which is slidably connected to a side wall of the first mounting plate through the test assembly, and is used for the test assembly to be movably clamped on the top of the second mounting plate, so that after the four sets of limit assemblies clamp and fix the corners of the BMS chip, the BMS chip is stably attached to the top of the second mounting plate, so that the test assembly and the pin end of the BMS chip can be accurately detected, and the first adjustment assembly is used to assist the BMS chip to be clamped, so that the angle of the BMS chip can be adjusted when clamping, and the BMS chip can be assisted in discharging after the detection is completed, thereby improving the safety of the chip during the compression test.

Description

[0001] This application is a divisional application. The application number of the original application is: "202211035236.X", the application date is: "August 26, 2022", and the name of the invention is: "A testing device for BMS products". Technical Field

[0002] The present invention belongs to the technical field of BMS testing devices, and in particular relates to a BMS product support adjustment mechanism and a corresponding testing device. Background Art

[0003] A battery management system (BMS), or battery management system, serves as the link between batteries and users, primarily targeting secondary batteries. Secondary batteries have several drawbacks, including limited energy storage, short lifespan, issues with series and parallel connection, safety issues, and difficulty estimating battery charge levels. Battery performance is complex, and characteristics vary significantly between different battery types. The primary purpose of a battery management system (BMS) is to improve battery utilization, prevent overcharging and overdischarging, extend battery life, and monitor battery status. As battery management systems evolve, additional functions will be added.

[0004] A search revealed prior art Chinese patent application number CN201621416734.9, filed on June 30, 2017, which discloses a BMS testing device comprising a test work platform, a BMS testing device and a floating lifting and positioning device mounted on the test work platform. The floating lifting and positioning device slides above the BMS testing device. The BMS testing device comprises a BMS testing assembly, a clamping guide block, and a test drive unit. The BMS testing assembly is slidably mounted on the test work platform by the test drive unit, and the clamping guide block is fixedly mounted above the BMS testing assembly. The BMS testing device of the present invention, by providing a test work platform, a BMS testing device, and a floating lifting and positioning device, enables automated testing of BMS products, significantly improving work efficiency. The BMS testing assembly, the clamping guide block, and the test drive unit expand the device's range of use. The clamping guide block not only enables stable lifting and lowering of the BMS product, but also prevents scratches on the surface of the BMS product, thereby ensuring product quality.

[0005] However, the device still has the following defects:

[0006] 1. Although the device can ensure the quality of BMS products during use, the lifting and positioning effects of the BMS chip or battery protection board during testing are often not ideal, and the BMS chip to be tested cannot be adjusted, which easily causes the risk of damage during compression. Summary of the Invention

[0007] In response to the above problems, the present invention provides a BMS product support adjustment mechanism and a corresponding testing device.

[0008] A BMS product support adjustment mechanism includes a second mounting plate, a limit assembly, and a first adjustment assembly;

[0009] The four groups of limit assemblies are slidably connected to the top corners of the second mounting plate, and the top end of the first adjustment assembly is fixedly connected to the bottom end of the second mounting plate;

[0010] The first adjustment component includes a second shell and an auxiliary mechanism; a hollow sliding cavity is opened at the top of the second shell, and a circular hole connected to the hollow sliding cavity is opened on the surface of the second mounting plate. A mounting plate is horizontally arranged inside the second shell, and the top of the mounting plate is fixedly connected to the bottom end of the auxiliary mechanism. The auxiliary mechanism coincides with the central axis of the hollow sliding cavity, and the auxiliary mechanism is slidably connected to the inner wall of the hollow sliding cavity. The auxiliary mechanism adsorbs and rotates the bottom of the BMS chip to be tested.

[0011] In the present invention, the limiting assembly includes a resistance mechanism and a driving mechanism; the resistance mechanism is slidably connected to the top end of the second mounting plate, the driving mechanism is fixedly connected to the bottom end of the second mounting plate, and the driving mechanism is transmission-connected to the resistance mechanism;

[0012] The interference mechanism includes a first limit block and a second limit block;

[0013] One end of the first limit block is fixedly connected to one end of the second limit block, and the connection between the first limit block and the second limit block is set at a right angle, the top ends of the first limit block and the second limit block are fixedly connected to a gas spring, and the two groups of gas springs are far away from the connection between the first limit block and the second limit block, the bottom end of the first limit block is fixedly connected to the first cross plate, the bottom end of the second limit block is fixedly connected to the second cross plate, the adjacent ends of the first cross plate and the second cross plate are fixedly connected, and the connection between the first cross plate and the second cross plate is set at a right angle, the bottom ends of the first cross plate and the second cross plate are fixedly connected to a linkage column, and the linkage column is transmission connected to the driving mechanism;

[0014] The driving mechanism includes a first shell, which is fixedly connected to the bottom end of the second mounting plate, a first guide groove is provided on a side wall of the first shell close to the second mounting plate, and a second guide groove is provided on the surface of the second mounting plate that is interconnected and used in conjunction with the first guide groove. One end of the inner wall of the first shell is fixedly connected to the first motor, and the output end of the first motor is transmission-connected to the first screw rod, the linkage column sequentially passes through the second guide groove and the first guide groove and extends to the bottom end of the inner wall of the first shell, the first screw rod is threadedly connected to the linkage column, and the end of the first screw rod away from the first motor is rotatably connected to the inner wall of the first shell.

[0015] Among them, the first limit block is sleeved with a first guide shell, and the second limit block is sleeved with a second guide shell. The first guide shell and the second guide shell are both open structures, and the inner walls of the first guide shell and the second guide shell are both provided with guide cavities, and the guide cavities are slidably fitted and connected to the outer walls of the first limit block and the second limit block.

[0016] Furthermore, the top of the first guide shell is fixedly connected to a third horizontal plate, the top of the second guide shell is fixedly connected to a fourth guide plate, the adjacent ends of the third horizontal plate and the fourth guide plate are fixedly connected, and the connection between the third horizontal plate and the fourth guide plate is set at a right angle, and the output ends of the two groups of gas springs are fixedly connected to the bottom ends of the third horizontal plate and the fourth guide plate, respectively.

[0017] In the present invention, a second screw rod is threadedly connected to one side of the mounting plate, a guide rod is slidably connected to the other side of the mounting plate, and both ends of the guide rod are fixedly connected to the inner wall of the second shell, and a second motor is fixedly connected to the bottom end of the inner wall of the second shell, and the output end of the second motor is transmission-connected to one end of the second screw rod, and the other end of the second screw rod is rotatably connected to the inner wall of the second shell and close to one side of the hollow sliding cavity.

[0018] Furthermore, the auxiliary mechanism includes a positioning base and a movable cover;

[0019] The positioning base and the movable cover are both open structures, and the bottom end of the inner wall of the positioning base is fixedly connected to a third motor, the central axis of the third motor coincides with the central axis of the positioning base, the movable cover is movably and fitly connected to the top of the positioning base, the top of the movable cover is provided with a plurality of groups of guide holes, and the plurality of groups of guide holes are arranged in a rectangular array, the top of the movable cover is symmetrically provided with two groups of roller mounting grooves, and the two groups of roller mounting grooves are located on both sides of the guide holes, the bottom end of the inner wall of the movable cover is fixedly connected to a third shell, and the third shell is clamped around the plurality of groups of guide holes, the bottom end of the inner wall of the third shell is fixedly connected to a vacuum pump, the air inlet end of the vacuum pump is provided with a plurality of groups of hoses, and the ends of the plurality of groups of hoses extend to the inner walls of the plurality of groups of guide holes in sequence.

[0020] Furthermore, rollers are provided on the inner walls of the two groups of roller mounting grooves, and the two groups of rollers are rotatably connected to roller brackets on the side away from the third shell, the bottom ends of the two groups of roller brackets are transmission-connected to the first electric push rods, and the ends of the two groups of first electric push rods away from the output end are fixedly connected to the balance bracket.

[0021] In addition, an assembly hole is provided on the surface of the balance bracket, and the central axis of the assembly hole coincides with the central axis of the balance bracket. The assembly hole is sleeved and fixedly connected to the outer wall of the output end of the third motor. The output end of the third motor is also fixedly connected to the bottom end of the third shell, and the central axis of the output end of the third motor coincides with the central axis of the third shell.

[0022] The present invention also includes a test device that uses the above-mentioned BMS product support and adjustment mechanism, and also includes a first mounting plate, a test assembly, and a second adjustment assembly. A side wall of the first mounting plate is slidably connected to the test assembly, an outer wall of the first mounting plate that is close to the test assembly is fixedly connected to the second mounting plate, and an outer wall of the first mounting plate that is away from the test assembly is fixedly connected to two sets of second adjustment assemblies. The two sets of second adjustment assemblies are in transmission connection with the test assembly.

[0023] The test assembly includes a protective cover;

[0024] A limit plate is fixedly connected to the inner wall of one side of the protective cover, and a plurality of groups of pressure sensors are embedded and installed on the side of the limit plate away from the inner wall of the protective cover. The plurality of groups of pressure sensors are arranged in a rectangular array. A side wall of the limit plate close to the pressure sensor is fixedly connected to a contact plate, and a plurality of groups of pin square holes are opened on the surface of the contact plate. The plurality of groups of pin square holes are sequentially sleeved on the outside of the plurality of groups of pressure sensors and used in conjunction with each other. The limit plate and the contact plate are both fixedly connected to the inner wall of the protective cover;

[0025] The second adjustment component includes two groups of electric slides, and the two groups of electric slides are fixedly connected to the outer wall of the first mounting plate and away from the side of the protective cover. Two groups of balancing grooves are opened on the surface of the first mounting plate. The two groups of electric slides are slidably connected to sliders on the side close to the first mounting plate, and the two groups of sliders are slidably connected to the inner walls of the two groups of balancing grooves in turn. The ends of the two groups of sliders are fixedly connected to the outer wall of one side of the protective cover, and the two groups of electric slides are fixedly connected to a cross plate on a side wall away from the first mounting plate, and the cross plate is fixedly connected to a second electric push rod on a side wall away from the first mounting plate, and the output end of the second electric push rod is transmission-connected with a resistance block, and the resistance block passes through the first mounting plate and extends to the top side of the second mounting plate.

[0026] In the present invention, a fixing plate is detachably provided on the abutment plate, and the pin square holes are provided on the fixing plate;

[0027] The test assembly further includes an adjustment plate, the adjustment plate being disposed between the limit plate and the contact plate, the adjustment plate being provided with a relief groove, a spring piece being connected to the relief groove, the pin square hole and the pressure sensor being located on a trajectory of elastic movement of the spring piece;

[0028] Calibration blocks are provided on both sides of the adjustment plate, a through hole is provided on the inner wall of the protective cover, a movable plate is slidably provided in the through hole, an elastic member is connected between the movable plate and the inner wall of the through hole, the calibration block extends to the outside through the through hole, and the calibration block contacts the side of the movable plate away from the elastic member;

[0029] The side surface of the protective cover is rotatably connected to a clamping piece, and the clamping piece is an L-shaped structure. The first end and the second end of the clamping piece are respectively located on two adjacent sides of the correction block, and the first end of the clamping piece is located on a side of the correction block away from the elastic member, and the second end is provided with a fixing block. A clamping hole for clamping with the fixing block is provided on one side of the correction block. When the first end of the clamping piece is rotated in a direction close to the correction block, the fixing block can be disconnected from the clamping hole.

[0030] The protective cover is provided with a limit block for limiting the rotation of the clamping piece, and a torsion spring is provided between the clamping piece and the protective cover, so that the clamping piece can automatically rotate to a position where the correction block can be clamped under the action of elastic force.

[0031] The beneficial effects of the present invention are:

[0032] 1. The test component is slidably connected to one side wall of the first mounting plate, and is used to movably clamp the test component on the top of the second mounting plate, so that the four groups of limit components clamp and fix the corners of the BMS chip, and the BMS chip is smoothly fitted on the top of the second mounting plate, so that the test component and the pin end of the BMS chip can be accurately detected. The first adjustment component is used to assist the BMS chip to be clamped, so that the angle of the BMS chip can be adjusted when clamping, and the BMS chip can assist in discharging after the detection is completed, thereby improving the safety of the chip during the compression test.

[0033] 2. After the movable cover rises, it fits with the bottom surface of the BMS chip, and negative pressure is generated in the guide hole when the vacuum pump continues to work. After the BMS chip is adsorbed and fixed, the third shell is driven to rotate by the third motor to adjust the BMS chip adsorbed and fixed on the guide hole. It is used to adjust the angle of the corner of the offset BMS chip before clamping, thereby improving the accuracy of clamping the chip.

[0034] 3. The slider is driven by two sets of electric slides to be raised and lowered, so that the protective cover and the contact plate move synchronously. When the contact plate presses down the third horizontal plate and the fourth guide plate, the inner right angle formed by the first horizontal plate and the second horizontal plate drives the corner of one side of the clamped BMS chip to move downward synchronously, which is used to reduce the uneven contact between the bottom surface and the second mounting plate during the BMS chip pin test, and avoid the problem of pin detection error caused by the uneven bottom surface of the chip.

[0035] 4. The roller bracket is pushed up by two sets of first electric push rods to make the two sets of rollers slide in the roller mounting grooves. The two sets of rollers are used to slide out of the roller mounting grooves to lift the tested BMS chip upwards, which is used to facilitate the unloading of the BMS chip after the test and improve the smooth unloading effect of the chip after the test.

[0036] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic structural diagram of a testing device according to an embodiment of the present invention is shown;

[0039] Figure 2 A schematic structural diagram of a test assembly according to an embodiment of the present invention is shown;

[0040] Figure 3 Shown Figure 2 A magnified view of the local structure at X in the middle;

[0041] Figure 4 A schematic structural diagram of a position limiting assembly according to an embodiment of the present invention is shown;

[0042] Figure 5 A schematic structural diagram of a conflict mechanism according to an embodiment of the present invention is shown;

[0043] Figure 6 A schematic structural diagram of a first adjustment component according to an embodiment of the present invention is shown;

[0044] Figure 7 A schematic structural diagram of an auxiliary mechanism according to an embodiment of the present invention is shown;

[0045] Figure 8 A schematic structural diagram of the second adjustment component according to an embodiment of the present invention is shown.

[0046] In the figure: 1. first mounting plate; 2. test assembly; 21. protective cover; 211. through hole; 212. movable plate; 213. elastic member; 214. clamping member; 215. clamping block; 22. limit plate; 23. pressure sensor; 24. contact plate; 251. square hole for pin; 26. adjustment plate; 261. avoidance groove; 262. spring; 263. correction block; 3. second mounting plate; 4. limit assembly; 41. contact mechanism; 41. first limit block; 412. second limit block; 413. gas spring; 414. first horizontal plate; 415. second horizontal plate; 416. linkage column; 417. first guide housing; 418. second guide housing; 419. guide cavity; 4110. third Horizontal plate; 4111, fourth guide plate; 42, driving mechanism; 5, first adjusting component; 51, second shell; 52, hollow slide cavity; 53, mounting plate; 54, auxiliary mechanism; 541, positioning base; 542, third motor; 543, movable cover; 544, guide hole; 545, roller mounting groove; 546, third shell; 547, vacuum pump; 548, roller; 549, roller bracket; 5410, first electric push rod; 5411, balancing bracket; 5412, assembly hole; 55, second screw rod; 56, guide rod; 57, second motor; 6, second adjusting component; 61, electric slide; 62, slider; 63, horizontal plate; 64, second electric push rod; 65, resistance block. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making creative efforts shall fall within the scope of protection of the present invention.

[0048] The embodiment of the present invention provides a test device for a BMS product, comprising a first mounting plate 1, a test assembly 2, four sets of limit assemblies 4 and a first adjustment assembly 5; for example, Figure 1 shown.

[0049] One side wall of the first mounting plate 1 is slidingly connected to the test component 2, and the connection between the test component 2 and the first mounting plate 1 is set at a right angle, the outer wall of the first mounting plate 1 and the side close to the test component 2 is fixedly connected with the second mounting plate 3, the connection between the second mounting plate 3 and the first mounting plate 1 is set at a right angle, four groups of the limit components 4 are slidingly connected to the top corner of the second mounting plate 3, the top of the first adjustment component 5 is fixedly connected to the bottom end of the second mounting plate 3, the outer wall of the first mounting plate 1 and the side away from the test component 2 are fixedly connected with two groups of second adjustment components 6, and the two groups of the second adjustment components 6 are transmission connected to the test component 2.

[0050] Furthermore, the test assembly 2 is an open structure, and the bottom end of the test assembly 2 is movably engaged with the top end of the second mounting plate 3 and used in conjunction with each other.

[0051] Specifically, the test assembly 2 is slidably connected to a side wall of the first mounting plate 1, and is used for the test assembly 2 to be movably clamped on the top of the second mounting plate 3, so that after the four sets of limit assemblies 4 clamp and fix the corners of the BMS chip, the BMS chip is stably attached to the top of the second mounting plate 3, so that the test assembly 2 and the pin end of the BMS chip can be accurately detected;

[0052] The four sets of limit assemblies 4 are used to firmly clamp the corners of the BMS chip. When the test assembly 2 moves downward close to the BMS chip, the test assembly 2 can first squeeze the four sets of limit assemblies 4, so that the connection between the four sets of limit assemblies 4 and the BMS chip moves downward, which is used to avoid the problem of pin detection error caused by the uneven bottom surface of the BMS chip;

[0053] The first adjustment component 5 is used to assist the BMS chip to be clamped, so that the angle of the BMS chip can be adjusted when clamping, and to assist in unloading the BMS chip after inspection. The first adjustment component 5 forms rolling contact with the contact surface of the BMS chip, which is used to smoothly unload the BMS chip after inspection.

[0054] The test assembly 2 includes a protective cover 21; illustratively, as Figure 2 shown.

[0055] A limiting plate 22 is fixedly connected to the inner wall of one side of the protective cover 21, and a plurality of groups of pressure sensors 23 are embedded and installed on the side of the limiting plate 22 away from the inner wall of the protective cover 21. The plurality of groups of pressure sensors 23 are arranged in a rectangular array, and a side wall of the limiting plate 22 close to the pressure sensor 23 is fixedly connected to a contact plate 24, and a plurality of groups of pin square holes 251 are opened on the surface of the contact plate 24. The plurality of groups of pin square holes 251 are sequentially sleeved on the outside of the plurality of groups of pressure sensors 23 and used in conjunction with each other.

[0056] Furthermore, a fixing plate 25 is detachably provided on the contact plate 24, and the pin square hole 251 is provided on the fixing plate 25. By replacing different fixing plates 25, the pin square holes 251 on different fixing plates 25 can be designed for corresponding products, so that the entire device can be used to detect different BMS products.

[0057] At the same time, the test assembly 2 also includes an adjustment plate 26, which is arranged between the limit plate 22 and the contact plate 24. The adjustment plate 26 is provided with a relief groove 261, and a spring 262 is connected to the relief groove 261. The pin hole 251 and the pressure sensor 23 are both located on the trajectory of the elastic activity of the spring 262, so that the pin end of the BMS product can first squeeze the spring 262 and then transmit the pressure to the pressure sensor. In this way, after replacing a different fixing plate 25, the pin holes 251 in different positions can still correspond to the pressure sensor 23 through the spring 262. In this way, only the fixing plate 25 needs to be replaced without changing other settings, which is low in cost.

[0058] In addition, correction blocks 263 are provided on both sides of the adjustment plate 26, a through hole 211 is provided on the inner wall of the protective cover 21, a movable plate 212 is slidably provided in the through hole 211, an elastic member 213 is connected between the movable plate 212 and the inner wall of the through hole 211, the correction block 263 extends to the outside through the through hole 211, and the correction block 263 contacts the side of the movable plate 212 away from the elastic member 213. When the BMS product is not inserted, the correction block 263 can be operated to control the adjustment plate 26 to slide in the direction close to the pressure sensor 23, so that the spring 262 contacts the pressure sensor 23, and the state of each spring 262 can be known through the detected pressure value, so as to prevent the spring 262 from affecting the detection result due to its own deformation, damage, etc. In addition, under the elastic force of the elastic member 213, the adjustment plate 26 can be squeezed away from the pressure sensor 23 to avoid accidental touch.

[0059] The side surface of the protective cover 21 is rotatably connected to a clamping member 214, which is an L-shaped structure. The first end and the second end of the clamping member 214 are respectively located on two adjacent sides of the correction block 263, and the first end of the clamping member 214 is located on the side of the correction block 263 away from the elastic member 213, and the second end is provided with a fixing block 215. A clamping hole for clamping with the fixing block 215 is provided on one side of the correction block 263. The clamping block 215 is engaged with the clamping hole to fix the adjustment plate 26 in the inner limit position. When the BMS product is inserted, the adjustment plate 26 will not move freely and will not affect the detection result.

[0060] When the first end of the fastening member 214 is rotated in the direction close to the correction block 263, the fastening block 215 can be disconnected from the clamping hole. That is, when operating the correction block 263, the fastening member 214 can be squeezed and rotated, so that the fastening block 215 is disconnected from the clamping hole, completing the unlocking, which is very convenient to operate.

[0061] It is easy to imagine that a limit block can be set on the protective cover 21 to limit the rotation of the clamping member 214, and a torsion spring can be set between the clamping member 214 and the protective cover 21, so that the clamping member 214 can automatically rotate to a position where it can clamp the correction block 263 under the action of elastic force.

[0062] Furthermore, the limiting plate 22 and the contact plate 24 have the same size, and both the limiting plate 22 and the contact plate 24 are fixedly connected to the inner wall of the protective cover 21 .

[0063] Specifically, the protective cover 21 moves downward and flexibly fits with the top of the second mounting plate 3, so that the contact plate 24 squeezes the four groups of limit assemblies 4. The four groups of limit assemblies 4 simultaneously drive the clamped BMS chip to move downward, which makes the pin end detection of the BMS chip more accurate and reduces errors.

[0064] The fixing plate 25 on the contact plate 24 is provided with a fixing plate 25 having a pin square hole 251, which is used to pass the pin end of the BMS chip outward through the pin square hole 251 and contact the pressure sensor 23 on the surface of the limit plate 22. The pin end of the BMS chip is detected by several groups of pressure sensors 23 to measure whether the length of the pin end of the BMS chip is qualified.

[0065] The limiting assembly 4 includes a resistance mechanism 41 and a driving mechanism 42; for example, Figure 4 shown.

[0066] The interference mechanism 41 is slidably connected to the top end of the second mounting plate 3 , the driving mechanism 42 is fixedly connected to the bottom end of the second mounting plate 3 , and the driving mechanism 42 is in transmission connection with the interference mechanism 41 .

[0067] The interference mechanism 41 includes a first limit block 411 and a second limit block 412; for example, Figure 5 shown.

[0068] One end of the first limit block 411 is fixedly connected to one end of the second limit block 412, and the connection between the first limit block 411 and the second limit block 412 is set at a right angle, the top ends of the first limit block 411 and the second limit block 412 are fixedly connected to a gas spring 413, and the two groups of gas springs 413 are located away from the connection between the first limit block 411 and the second limit block 412, the bottom end of the first limit block 411 is fixedly connected to the first cross plate 414, and the bottom end of the second limit block 412 is fixedly connected to the second cross plate 415, the first cross plate 414 and the second cross plate 415 are fixedly connected at adjacent ends, and the connection between the first cross plate 414 and the second cross plate 415 is set at a right angle, the bottom ends of the first cross plate 414 and the second cross plate 415 are fixedly connected to a linkage column 416, and the linkage column 416 is transmission connected to the driving mechanism 42;

[0069] The first limit block 411 is sleeved with a first guide shell 417, and the second limit block 412 is sleeved with a second guide shell 418. The first guide shell 417 and the second guide shell 418 are both open structures, and the inner walls of the first guide shell 417 and the second guide shell 418 are provided with a guide cavity 419, and the guide cavity 419 is slidably fitted and connected to the outer walls of the first limit block 411 and the second limit block 412. The top of the first guide shell 417 is fixedly connected with a third cross plate 4110, and the top of the second guide shell 418 is fixedly connected with a fourth guide plate 4111. The third cross plate 4110 is fixedly connected to the adjacent end of the fourth guide plate 4111, and the connection between the third cross plate 4110 and the fourth guide plate 4111 is arranged at a right angle. The output ends of the two groups of gas springs 413 are respectively fixedly connected to the bottom ends of the third cross plate 4110 and the fourth guide plate 4111.

[0070] The driving mechanism 42 includes a first shell (not shown in the figure); the first shell is an open structure, and the first shell is fixedly connected to the bottom end of the second mounting plate 3, and a first guide groove is provided on a side wall of the first shell close to the second mounting plate 3, and a second guide groove is provided on the surface of the second mounting plate 3 that is interconnected with the first guide groove and used in conjunction with the first guide groove. One end of the inner wall of the first shell is fixedly connected to the first motor, and the output end of the first motor is transmission-connected to the first screw rod, and the linkage column 416 sequentially passes through the second guide groove and the first guide groove and extends to the bottom end of the inner wall of the first shell, the first screw rod is threadedly connected to the linkage column 416, and the end of the first screw rod away from the first motor is rotatably connected to the inner wall of the first shell.

[0071] Specifically, the rotation of the first motor drives the first screw rod, so that the linkage column 416 screwed on the first screw rod moves synchronously to drive the first horizontal plate 414 and the second horizontal plate 415, and utilizes the inner right angle formed by the first guide housing 417 and the second guide housing 418 to clamp the corner of one side of the BMS chip;

[0072] The two sets of gas springs 413 at the top of the first limit block 411 and the second limit block 412 are used for the first guide housing 417 to be sleeved on the outer wall of the first limit block 411, and the second guide housing 418 to be sleeved on the outer wall of the second limit block 412, which play the purpose of limiting buffering. At the same time, when the contact plate 24 presses down the third transverse plate 4110 and the fourth guide plate 4111, the inner right angle formed by the first transverse plate 414 and the second transverse plate 415 drives the corner of one side of the clamped BMS chip to move downward synchronously, which is used to reduce the occurrence of uneven contact between the bottom surface and the second mounting plate 3 during the BMS chip pin test.

[0073] The first adjustment assembly 5 includes a second housing 51 and an auxiliary mechanism 54; for example, Figure 6 shown.

[0074] A hollow sliding cavity 52 is provided at the top of the second shell 51, and a circular hole is provided on the surface of the second mounting plate 3 which is connected to the hollow sliding cavity 52. ​​A mounting plate 53 is horizontally provided inside the second shell 51, and the top of the mounting plate 53 is fixedly connected to the bottom end of the auxiliary mechanism 54, the auxiliary mechanism 54 coincides with the central axis of the hollow sliding cavity 52, and the auxiliary mechanism 54 is slidably connected to the inner wall of the hollow sliding cavity 52, and a second screw rod 55 is threadedly connected to one side of the mounting plate 53, and a guide rod 56 is slidably connected to the other side of the mounting plate 53, and both ends of the guide rod 56 are fixedly connected to the inner wall of the second shell 51, and a second motor 57 is fixedly connected to the bottom end of the inner wall of the second shell 51, and the output end of the second motor 57 is transmission-connected to one end of the second screw rod 55, and the other end of the second screw rod 55 is rotatably connected to the inner wall of the second shell 51 and close to one side of the hollow sliding cavity 52.

[0075] Specifically, the rotation of the second motor 57 causes the second screw rod 55 to rotate synchronously, and the mounting plate 53 screwed on the second screw rod 55 drives the auxiliary mechanism 54 to rise and fall, so that the raised auxiliary mechanism 54 passes through the hollow sliding cavity 52 and travels to the top of the second mounting plate 3. The auxiliary mechanism 54 absorbs and rotates the bottom of the BMS chip to be tested for angle adjustment before clamping the BMS chip.

[0076] The auxiliary mechanism 54 includes a positioning base 541 and a movable cover 543; for example, Figure 7 shown.

[0077] The positioning base 541 and the movable cover 543 are both open structures, and the bottom end of the inner wall of the positioning base 541 is fixedly connected to the third motor 542, the central axis of the third motor 542 coincides with the central axis of the positioning base 541, and the movable cover 543 is movably connected to the top of the positioning base 541. The top of the movable cover 543 is provided with a plurality of groups of guide holes 544, and the plurality of groups of guide holes 544 are arranged in a rectangular array. The top of the movable cover 543 is symmetrically opened. Two sets of roller mounting grooves 545 are provided, and the two sets of roller mounting grooves 545 are located on both sides of the guide holes 544. The bottom end of the inner wall of the movable cover plate 543 is fixedly connected to a third shell 546, and the third shell 546 is clamped around the groups of guide holes 544. The bottom end of the inner wall of the third shell 546 is fixedly connected to a vacuum pump 547. The air inlet end of the vacuum pump 547 is provided with several sets of hoses, and the ends of the several sets of hoses extend sequentially to the inner walls of the groups of guide holes 544.

[0078] The inner walls of the two groups of roller mounting grooves 545 are both provided with rollers 548, and the two groups of rollers 548 are rotatably connected to the side of the third shell 546, and the bottom ends of the two groups of roller brackets 549 are transmission-connected to the first electric push rods 5410, and the ends of the two groups of the first electric push rods 5410 away from the output end are fixedly connected to the balance bracket 5411, and the surface of the balance bracket 5411 is provided with an assembly hole 5412, and the central axis of the assembly hole 5412 coincides with the central axis of the balance bracket 5411, and the assembly hole 5412 is sleeved and fixedly connected to the outer wall of the output end of the third motor 542, and the output end of the third motor 542 is also fixedly connected to the bottom end of the third shell 546, and the central axis of the output end of the third motor 542 coincides with the central axis of the third shell 546.

[0079] Specifically, after the movable cover 543 rises, it fits against the bottom surface of the BMS chip, and when the vacuum pump 547 continues to work, negative pressure is generated in the guide hole 544 to adsorb and fix the BMS chip. Then, the third motor 542 drives the third housing 546 to rotate, so that the BMS chip adsorbed and fixed on the guide hole 544 can be adjusted, which is used to adjust the angle of the corner of the BMS chip that is placed offset before clamping.

[0080] The two groups of the first electric push rods 5410 push the roller bracket 549 upward, so that the two groups of rollers 548 slide in the roller mounting groove 545, so that the two groups of rollers 548 slide out of the roller mounting groove 545, and push the tested BMS chip upward, so as to facilitate the unloading of the BMS chip after testing.

[0081] The second adjustment assembly 6 includes two sets of electric slides 61; for example, Figure 8 shown.

[0082] The two groups of electric slides 61 are fixedly connected to the outer wall of the first mounting plate 1 and away from the side of the protective cover 21. Two groups of balancing grooves are opened on the surface of the first mounting plate 1. The two groups of electric slides 61 are slidably connected to the side of the first mounting plate 1 with sliders 62, and the two groups of sliders 62 are slidably connected to the inner walls of the two groups of balancing grooves in turn. The ends of the two groups of sliders 62 are fixedly connected to the outer wall of one side of the protective cover 21. The two groups of electric slides 61 are fixedly connected to the side wall away from the first mounting plate 1 with a cross plate 63, and the cross plate 63 is fixedly connected to the side wall away from the first mounting plate 1 with a second electric push rod 64, and the output end of the second electric push rod 64 is transmission-connected with a resistance block 65, and the resistance block 65 passes through the first mounting plate 1 and extends to the top side of the second mounting plate 3.

[0083] Specifically, the two groups of electric slides 61 drive the slider 62 to be raised and lowered, so that the protective cover 21 moves synchronously. When the BMS chip test is completed, the slider 62 drives the protective cover 21 to rise away from the interference block 65, and the second electric push rod 64 pushes the interference block 65 to move horizontally. The interference block 65 is used to contact one end of the tested BMS chip, so that the interference block 65 pushes the tested BMS chip to move slowly to complete the unloading.

[0084] The working principle of the BMS product testing device proposed in the embodiment of the present invention is as follows:

[0085] The BMS chip to be tested is placed on top of the second mounting plate 3 with the pin end of the BMS chip facing the protective cover 21 to complete the preparation work before the BMS chip pin test;

[0086] After the movable cover 543 rises and fits against the bottom surface of the BMS chip, negative pressure is generated in the guide hole 544 by the continuous operation of the vacuum pump 547 to adsorb and fix the BMS chip. Then, the third motor 542 drives the third housing 546 to rotate, so that the BMS chip adsorbed and fixed on the guide hole 544 can be adjusted, which is used to adjust the angle of the corner of the BMS chip that is placed offset before clamping.

[0087] The first motor rotates to drive the first screw rod, causing the linkage column 416 screwed on the first screw rod to move synchronously, thereby driving the first horizontal plate 414 and the second horizontal plate 415. The inner right angle formed by the first guide housing 417 and the second guide housing 418 is used to clamp the corner of one side of the BMS chip.

[0088] The two sets of electric slides 61 drive the slider 62 to move up and down, so that the protective cover 21 and the contact plate 24 move synchronously. When the contact plate 24 presses down the third horizontal plate 4110 and the fourth guide plate 4111, the inner right angle formed by the first horizontal plate 414 and the second horizontal plate 415 drives the corner of one side of the clamped BMS chip to move downward synchronously, which is used to reduce the uneven contact between the bottom surface and the second mounting plate 3 during the BMS chip pin test.

[0089] The plurality of sets of pin square holes 251 can pass the pin ends of the BMS chip outward through the pin square holes 251 and contact the pressure sensors 23 on the surface of the limit plate 22. The pin ends of the BMS chip are detected by the plurality of pressure sensors 23 to measure whether the length of the pin ends of the BMS chip is qualified.

[0090] The roller bracket 549 is pushed upward by the two sets of first electric push rods 5410, so that the two sets of rollers 548 slide in the roller mounting grooves 545, and the two sets of rollers 548 can be driven to slide out of the roller mounting grooves 545, thereby lifting the tested BMS chip upward, thereby facilitating the unloading of the BMS chip after testing;

[0091] When the BMS chip test is completed, the slider 62 drives the protective cover 21 to rise away from the resistance block 65, and the second electric push rod 64 pushes the resistance block 65 to move horizontally. The resistance block 65 contacts one end of the tested BMS chip, and the resistance block 65 pushes the tested BMS chip to move slowly to complete the unloading function.

[0092] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A BMS product support adjustment mechanism, characterized by: It comprises a second mounting plate (3), a position limiting assembly (4) and a first adjusting assembly (5); The four groups of limit assemblies (4) are slidably connected to the top corners of the second mounting plate (3), and the top end of the first adjustment assembly (5) is fixedly connected to the bottom end of the second mounting plate (3); The first adjustment component (5) includes a second shell (51) and an auxiliary mechanism (54); a hollow sliding cavity (52) is provided at the top of the second shell (51), a circular hole is provided on the surface of the second mounting plate (3) and is interconnected with the hollow sliding cavity (52), a mounting plate (53) is horizontally arranged inside the second shell (51), the top of the mounting plate (53) is fixedly connected to the bottom of the auxiliary mechanism (54), the auxiliary mechanism (54) coincides with the central axis of the hollow sliding cavity (52), and the auxiliary mechanism (54) is slidably connected to the inner wall of the hollow sliding cavity (52), and the auxiliary mechanism (54) is used for adsorption and rotation adjustment of the bottom of the BMS chip to be tested; The auxiliary mechanism (54) includes a positioning base (541) and a movable cover (543); The positioning base (541) and the movable cover (543) are both open structures, and the bottom end of the inner wall of the positioning base (541) is fixedly connected to a third motor (542), the central axis of the third motor (542) coincides with the central axis of the positioning base (541), the movable cover (543) is movably connected to the top of the positioning base (541), and the top of the movable cover (543) is provided with a plurality of groups of guide holes (544), and the plurality of groups of guide holes (544) are arranged in a rectangular array, and the top of the movable cover (543) is symmetrical. Two groups of roller mounting grooves (545) are provided, and the two groups of roller mounting grooves (545) are located on both sides of the guide hole (544); the bottom end of the inner wall of the movable cover plate (543) is fixedly connected to a third shell (546), and the third shell (546) is clamped around several groups of the guide holes (544); the bottom end of the inner wall of the third shell (546) is fixedly connected to a vacuum pump (547); the air inlet end of the vacuum pump (547) is provided with several groups of hoses, and the ends of the several groups of hoses extend to the inner walls of several groups of the guide holes (544) in sequence; The inner walls of the two groups of roller mounting grooves (545) are both provided with rollers (548), and the sides of the two groups of rollers (548) away from the third shell (546) are both rotatably connected to roller brackets (549), and the bottom ends of the two groups of roller brackets (549) are both transmission-connected to the first electric push rod (5410).

2. A BMS product support adjustment mechanism according to claim 1, characterized in that: The limiting assembly (4) comprises a resistance mechanism (41) and a driving mechanism (42); the resistance mechanism (41) is slidably connected to the top end of the second mounting plate (3), the driving mechanism (42) is fixedly connected to the bottom end of the second mounting plate (3), and the driving mechanism (42) is transmission-connected to the resistance mechanism (41); The interference mechanism (41) comprises a first limiting block (411) and a second limiting block (412); One end of the first limiting block (411) is fixedly connected to one end of the second limiting block (412), and the connection between the first limiting block (411) and the second limiting block (412) is arranged at a right angle. The top ends of the first limiting block (411) and the second limiting block (412) are both fixedly connected to gas springs (413), and the two groups of gas springs (413) are both far away from the connection between the first limiting block (411) and the second limiting block (412). The bottom end of the first limiting block (411) is fixedly connected to the bottom end of the second limiting block (412). A first transverse plate (414) is connected, the bottom end of the second limit block (412) is fixedly connected to the second transverse plate (415), the first transverse plate (414) and the adjacent end of the second transverse plate (415) are fixedly connected, and the connection between the first transverse plate (414) and the second transverse plate (415) is arranged at a right angle, the bottom ends of the first transverse plate (414) and the second transverse plate (415) are fixedly connected to a linkage column (416), and the linkage column (416) is transmission-connected to the driving mechanism (42); The driving mechanism (42) includes a first shell, which is fixedly connected to the bottom end of the second mounting plate (3), a first guide groove is provided on a side wall of the first shell close to the second mounting plate (3), and a second guide groove is provided on the surface of the second mounting plate (3) and is interconnected with the first guide groove and used in conjunction with the first guide groove. One end of the inner wall of the first shell is fixedly connected to a first motor, and the output end of the first motor is transmission-connected to a first screw rod, the linkage column (416) sequentially passes through the second guide groove and the first guide groove and extends to the bottom end of the inner wall of the first shell, the first screw rod is threadedly connected to the linkage column (416), and the end of the first screw rod away from the first motor is rotatably connected to the inner wall of the first shell.

3. A BMS product support adjustment mechanism according to claim 2, characterized in that: The first limiting block (411) is sleeved with a first guide housing (417), and the second limiting block (412) is sleeved with a second guide housing (418). The first guide housing (417) and the second guide housing (418) are both open structures, and the inner walls of the first guide housing (417) and the second guide housing (418) are both provided with a guide cavity (419), and the guide cavity (419) is slidably connected to the outer walls of the first limiting block (411) and the second limiting block (412).

4. A BMS product support adjustment mechanism according to claim 3, characterized in that: The top end of the first guide housing (417) is fixedly connected to a third transverse plate (4110), and the top end of the second guide housing (418) is fixedly connected to a fourth guide plate (4111). The adjacent ends of the third transverse plate (4110) and the fourth guide plate (4111) are fixedly connected, and the connection between the third transverse plate (4110) and the fourth guide plate (4111) is arranged at a right angle. The output ends of the two groups of gas springs (413) are fixedly connected to the bottom ends of the third transverse plate (4110) and the fourth guide plate (4111), respectively.

5. The BMS product support adjustment mechanism according to claim 1, characterized in that: One side of the mounting plate (53) is threadedly connected to a second screw rod (55), and the other side of the mounting plate (53) is slidably connected to a guide rod (56), and both ends of the guide rod (56) are fixedly connected to the inner wall of the second shell (51), and the bottom end of the inner wall of the second shell (51) is fixedly connected to a second motor (57), and the output end of the second motor (57) is transmission-connected to one end of the second screw rod (55), and the other end of the second screw rod (55) is rotatably connected to the inner wall of the second shell (51) and close to one side of the hollow sliding cavity (52).

6. The BMS product support adjustment mechanism according to claim 1, characterized in that: The ends of the two groups of the first electric push rods (5410) away from the output end are fixedly connected to a balancing bracket (5411).

7. A BMS product support adjustment mechanism according to claim 6, characterized in that: The surface of the balancing bracket (5411) is provided with an assembly hole (5412), and the central axis of the assembly hole (5412) coincides with the central axis of the balancing bracket (5411); the assembly hole (5412) is sleeved and fixedly connected to the outer wall of the output end of the third motor (542); the output end of the third motor (542) is also fixedly connected to the bottom end of the third shell (546), and the central axis of the output end of the third motor (542) coincides with the central axis of the third shell (546).

8. A testing device, characterized in that: The BMS product support and adjustment mechanism according to any one of claims 1 to 7 further comprises a first mounting plate (1), a test assembly (2) and a second adjustment assembly (6), wherein a side wall of the first mounting plate (1) is slidably connected to the test assembly (2), an outer wall of the first mounting plate (1) and a side close to the test assembly (2) are fixedly connected to the second mounting plate (3), and an outer wall of the first mounting plate (1) and a side away from the test assembly (2) are fixedly connected to two groups of second adjustment assemblies (6), and the two groups of second adjustment assemblies (6) are transmission-connected to the test assembly (2); The test assembly (2) includes a protective cover (21); A limiting plate (22) is fixedly connected to the inner wall of one side of the protective cover (21); a plurality of groups of pressure sensors (23) are embedded and installed on the side of the limiting plate (22) away from the inner wall of the protective cover (21); the plurality of groups of pressure sensors (23) are arranged in a rectangular array; a side wall of the limiting plate (22) close to the pressure sensor (23) is fixedly connected to a contact plate (24); and a plurality of groups of pin square holes (251) are opened on the surface of the contact plate (24); the plurality of groups of pin square holes (251) are sequentially sleeved on the outside of the plurality of groups of pressure sensors (23) and used in conjunction with each other; the limiting plate (22) and the contact plate (24) are both fixedly connected to the inner wall of the protective cover (21); The second adjustment component (6) includes two groups of electric slides (61), and the two groups of electric slides (61) are fixedly connected to the outer wall of the first mounting plate (1) and on a side away from the protective cover (21). The surface of the first mounting plate (1) is provided with two groups of balancing grooves. The two groups of electric slides (61) are slidably connected to a side close to the first mounting plate (1) with a slider (62), and the two groups of sliders (62) are slidably connected to the inner walls of the two groups of balancing grooves in sequence. The two groups of sliders (62) The ends of the two groups of electric slides (61) are fixedly connected to the outer wall of one side of the protective cover (21), and the side wall away from the first mounting plate (1) is fixedly connected to a transverse plate (63), and the side wall away from the first mounting plate (1) is fixedly connected to the second electric push rod (64), and the output end of the second electric push rod (64) is transmission-connected to a resistance block (65), and the resistance block (65) passes through the first mounting plate (1) and extends to the top side of the second mounting plate (3).

9. The testing device according to claim 8, characterized in that: A fixing plate (25) is detachably provided on the contact plate (24), and the pin square hole (251) is provided on the fixing plate (25); The test assembly (2) further comprises an adjustment plate (26), the adjustment plate (26) being arranged between the limit plate (22) and the contact plate (24), the adjustment plate (26) being provided with a position-avoiding groove (261), a spring piece (262) being connected in the position-avoiding groove (261), and the pin square hole (251) and the pressure sensor (23) being located on a trajectory of elastic activity of the spring piece (262); Correction blocks (263) are provided on both sides of the adjustment plate (26); a through hole (211) is provided on the inner wall of the protective cover (21); a movable plate (212) is slidably provided in the through hole (211); an elastic member (213) is connected between the movable plate (212) and the inner wall of the through hole (211); the correction block (263) extends to the outside through the through hole (211), and the correction block (263) contacts a side of the movable plate (212) away from the elastic member (213); A clamping member (214) is rotatably connected to the side surface of the protective cover (21), and the clamping member (214) is an L-shaped structure. The first end and the second end of the clamping member (214) are respectively located on two adjacent sides of the correction block (263), and the first end of the clamping member (214) is located on a side of the correction block (263) away from the elastic member (213). The second end is provided with a clamping block (215). A clamping hole for clamping with the clamping block (215) is provided on one side of the correction block (263). When the first end of the clamping member (214) rotates in a direction close to the correction block (263), the clamping block (215) can be disconnected from the clamping hole. A limit block for limiting the rotation of the clamping member (214) is provided on the protective cover (21), and a torsion spring is provided between the clamping member (214) and the protective cover (21), so that the clamping member (214) can automatically rotate to a position capable of clamping the correction block (263) under the action of elastic force.

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