Battery pack testing device

Abstract

The utility model discloses a battery pack testing device, which relates to the technical field of battery pack testing and comprises a case, a hinge seat is fixedly mounted on one side of the case, a case door is mounted on the case in a hinged manner through the hinge seat, a tester is fixedly mounted at the upper end in the case, and a lifting mechanism is fixedly mounted in the middle of the rear side in the case. And a bearing mechanism is fixedly mounted on the front surface of the lifting mechanism. By the adoption of the structure, the third motor is started to drive the transmission crawler belt to rotate, a battery pack body is rapidly and automatically conveyed into the machine box, when the battery pack body needs to be taken out, the lifting mechanism moves the battery pack body downwards to the bottom of the machine box, the third motor drives the transmission crawler belt to operate reversely, and the battery pack body moves towards the outer side; through the design, the convenience of taking and placing the whole battery pack body by the device is greatly improved, and great convenience is provided for the test work of the battery pack body.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pack testing, and particularly relates to a battery pack testing device. Background Art

[0002] A battery pack test device is a device used to test the performance of a battery pack. It charges and discharges the battery pack, measures and records key parameters, and evaluates the performance, safety, and stability of the battery pack. An external short-circuit test is to connect a lithium-ion battery pack to a fixed resistor, and the charge of the lithium-ion battery is released through the resistor. The size of the short-circuit current can be controlled according to the size of the fixed resistor. Since a large current will accumulate a large amount of heat in a lithium-ion battery in a short period of time, it may cause thermal runaway of the lithium-ion battery. Therefore, the battery pack short-circuit test needs to be carried out in an explosion-proof safety box to avoid safety accidents. In order to facilitate observation or operation by operators, the operating table in the existing safety box is generally set high. It is very inconvenient for operators to take and put battery packs, especially large battery packs, which greatly increases the labor intensity of operators.

[0003] A Chinese patent with publication number "CN217931975U" discloses a battery pack testing device, which includes a box and a tester. A moving component is arranged inside the box. The mutual cooperation among a threaded rod fixedly connected to the output end of a first motor, a moving block screwed on the threaded rod, a limit column movably connected to one side of the moving block, a rotating shaft fixedly connected to the output end of the second motor, and an operating table fixedly connected to the rotating shaft facilitates the taking and placing of large battery packs and reduces the labor intensity of operators.

[0004] Although the above device has the function of lifting and lowering during use, it relies on the guidance of the inclined surface when taking and placing the battery pack, and the battery pack slides naturally to take and place. The overall sliding taking and placing stability is poor. In addition, during its use, the battery pack lacks a corresponding positioning structure, and it is impossible to flexibly adjust and clamp battery packs of different sizes. There are certain defects and shortcomings in the overall use process, which need to be improved. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a battery pack testing device to solve the problems raised in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A battery pack testing device comprises a chassis, a hinge seat is fixedly installed on one side of the chassis, a box door is hingedly installed on the chassis through the hinge seat, a tester is fixedly installed on the upper end of the chassis, a lifting mechanism is fixedly installed on the middle of the rear side of the chassis, a bearing mechanism is fixedly installed on the front of the lifting mechanism, a battery pack body is placed on the top of the bearing mechanism, and a controller is fixedly installed on the lower end of one side of the chassis;

[0008] The bearing mechanism includes a bearing plate, which is fixedly installed on the front side of the lifting mechanism. A driving assembly is fixedly installed in the middle of the bearing mechanism, and a clamping assembly is fixedly installed on the top of the driving assembly. The battery pack body is clamped and installed between the inner sides of the clamping assembly. The box door can be flexibly opened or closed through a hinge seat to facilitate the placement or removal of the battery pack. A tester is installed in the upper part of the chassis for performing performance tests on the battery pack. A lifting mechanism is set in the center of the rear part of the chassis, and a bearing mechanism is installed on the front side to support and fix the battery pack. The bearing mechanism includes a bearing plate, a driving assembly and a clamping assembly. The driving assembly drives the clamping assembly to clamp and fix the battery pack to ensure stability during the test. A controller is installed at the bottom of one side of the chassis to facilitate the operator to control the operation of the entire test device. This battery pack test device has a reasonable design and is easy to operate, and can efficiently complete the performance test of the battery pack.

[0009] As a preferred technical solution, the lifting mechanism includes an inner rail, which is fixedly installed in the middle of the chassis, a first motor is fixedly installed at the bottom of the inner rail, a one-way screw is fixedly installed at the output end of the first motor, the one-way screw is rotatably connected to the inside of the inner rail, a sliding block is threadedly connected to the outer surface of the one-way screw, the front side of the sliding block and the back side of the bearing plate are fixedly connected, the inner rail is firmly installed in the center of the chassis as a guide and support for the lifting movement, the first motor is installed at the bottom of the inner rail as a power source for the lifting mechanism, the output end of the first motor is connected to the one-way screw, and the one-way screw can be driven to move in the inner rail by controlling the operation of the first motor. The rail rotates inside, and the outer surface of the one-way screw is designed with a thread, which is threadedly connected to the sliding block. When the one-way screw rotates, the sliding block will slide up and down along the inner rail under the drive of the screw. The front of the sliding block is tightly fixed to the back of the carrying plate. Therefore, the up and down movement of the sliding block will drive the carrying plate and the battery pack body thereon to rise and fall together. This lifting mechanism is exquisitely designed and has a stable structure. By controlling the forward and reverse rotation of the first motor, the lifting and lowering movement of the carrying plate and the battery pack body can be easily realized, thereby meeting the needs of different height positions during the test process. At the same time, the threaded connection method ensures the smoothness and accuracy of the lifting movement, which helps to improve the accuracy of the test results.

[0010] As an optimal technical solution, supporting grooves are provided on both sides and the front and rear ends of the chassis, and guide wheels are rotatably connected to both sides and the front and rear ends of the carrying plate. The outer sides of the guide wheels are fitly connected to the inner walls of the supporting grooves, and the front and rear ends of both sides of the carrying plate are rotatably connected to the guide wheels. The design of these guide wheels is very clever, and their outer sides are tightly fitted to the inner walls of the supporting grooves. When the carrying plate moves up and down under the action of the lifting mechanism, the guide wheels will roll in the supporting grooves, thereby greatly reducing friction, making the lifting movement smoother, and reducing wear and energy consumption.

[0011] As an optimal technical solution, the driving assembly includes a slide slot and a second motor, the slide slot is opened in the middle of the carrying plate, the second motor is fixedly installed in the middle of one side of the carrying plate, the slide slot is internally rotatably connected with a bidirectional screw rod, the two ends of the bidirectional screw rod have opposite threads, the two ends of the bidirectional screw rod are threadedly connected with sliders, the top of the slider is fixedly connected to the bottom of the clamping assembly, the driving assembly is an important part of the carrying mechanism, and is used to drive the clamping assembly to perform a clamping action. The assembly is mainly composed of a slide slot, a second motor, a bidirectional screw rod and a slider. The slide slot is opened in the middle of the carrying plate, providing a track for the movement of the slider. The second motor is fixedly installed in the middle of one side of the carrying plate as a power source for driving the clamping assembly to move. When the second motor is started, it will drive the bidirectional screw rod to rotate inside the slide slot, and the two ends of the bidirectional screw rod have opposite threads. This design makes it possible for the sliders at both ends to approach or move away from each other when the bidirectional screw rod rotates, and each slider is fixedly connected to the bottom of the clamping assembly. Therefore, the movement of the slider will drive the clamping assembly to perform corresponding clamping or releasing actions.

[0012] As a preferred technical solution, the overall shape of the slider and the sliding block are both set to a convex shape, and the inner wall cross-sectional shape of the slide groove and the inner rail is also set to a convex shape. The overall shape of the slider and the sliding block are cleverly designed to be a convex shape, which increases the contact area between them and the slide groove and the inner rail, improves stability, and ensures their guidance during movement. The convex cross-sectional shape enables the slider and the sliding block to fit tightly in the slide groove and the inner rail, reducing the shaking caused by movement, thereby improving the stability of the entire device. At the same time, the convex design also enables the slider and the sliding block to better withstand and disperse the force when subjected to external force, avoiding damage caused by excessive local force.

[0013] As a preferred technical solution, the clamping assembly includes a supporting frame, which is fixedly mounted on the top of the slider, and a substrate is fixedly mounted on the bottom of the supporting frame. The inside of the supporting frame is rotatably connected to a transmission track, and a third motor for driving the transmission track is fixedly mounted on one end of the top of the supporting frame. The supporting frame is fixedly mounted on the top of the slider and moves with the movement of the slider, thereby realizing flexible positioning of the clamping assembly. The substrate is fixed at the bottom of the supporting frame to provide stable support for the entire clamping assembly, and the transmission track is rotatably connected to the inside of the supporting frame. Its design makes the clamping process smoother and more reliable. The transmission track design in the clamping assembly is indeed for the convenience of taking and placing the battery pack body.

[0014] As a preferred technical solution, an operation window is provided at the upper end of the box door, and a bridge-type handrail is fixedly installed on the front side of the box door away from the hinged seat. The operation window is provided at the upper end of the box door to provide the user with a space for performing operations when the box door is closed, such as observing the test status, adjusting parameters, etc., thereby avoiding the need to open the box door frequently and greatly improving the efficiency of the testing work.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] First, by placing the battery pack body on the carrier plate, the driving component is used to push the clamping component to move. At this time, the clamping component can stably clamp and position the battery pack body to ensure the flexibility and adaptability of the clamping. After that, the clamping component is used to quickly and automatically transfer the battery pack body to the inside of the chassis. When the battery pack body needs to be taken out, the lifting mechanism moves it downward to the bottom of the chassis, and the clamping component runs in the opposite direction, and the battery pack body moves outward to achieve fast and automatic placement. This design greatly improves the convenience of the overall device for taking and placing the battery pack body, and provides great convenience for the battery pack body testing work;

[0017] Second, by setting up a lifting mechanism, the device is more convenient to use. Open the box door, place the battery pack on the load-bearing plate, fix it through the load-bearing mechanism, start the lifting mechanism, and then adjust the height of the load-bearing plate. In this way, no matter the size of the battery pack, it can be flexibly adapted. During operation, the battery pack can be placed from a lower position and then raised to an appropriate height through the lifting mechanism. This automatic lifting function greatly improves the convenience of placing and removing the battery pack, simplifies the operation process, and makes the device more practical and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when the box door is in an open state;

[0020] Figure 3 It is a schematic diagram of the structure of the carrying mechanism and the battery pack body of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall structure of the bearing mechanism of the utility model.

[0022] Figure numerals: 1. chassis; 2. hinged seat; 3. lifting mechanism; 31. inner rail; 32. first motor; 33. one-way screw; 34. sliding block; 4. tester; 5. box door; 6. bearing mechanism; 61. bearing plate; 62. driving assembly; 621. slide groove; 622. second motor; 623. two-way screw; 624. slider; 63. clamping assembly; 631. bearing frame; 632. base plate; 633. transmission crawler; 634. third motor; 64. supporting groove; 65. guide wheel; 7. battery pack body; 8. controller; 9. operation window; 10. bridge handrail. DETAILED DESCRIPTION

[0023] Example

[0024] refer to Figures 1 to 4 A battery pack testing device of the present embodiment includes a chassis 1, a hinge seat 2 is fixedly installed on one side of the chassis 1, a box door 5 is hingedly installed on the chassis 1 through the hinge seat 2, a tester 4 is fixedly installed on the upper end of the chassis 1, a lifting mechanism 3 is fixedly installed on the middle of the rear side of the chassis 1, a bearing mechanism 6 is fixedly installed on the front of the lifting mechanism 3, a battery pack body 7 is placed on the top of the bearing mechanism 6, and a controller 8 is fixedly installed on the lower end of one side of the chassis 1;

[0025] The supporting mechanism 6 includes a supporting plate 61, which is fixedly installed on the front side of the lifting mechanism 3. A driving assembly 62 is fixedly installed in the middle of the supporting mechanism 6, and a clamping assembly 63 is fixedly installed on the top of the driving assembly 62. The battery pack body 7 is clamped and installed between the inner sides of the clamping assembly 63. Through the cooperation of the lifting mechanism 3 and the supporting mechanism 6, the tester 4 can conveniently test the battery pack body 7. The operation is convenient and the performance test of the battery pack can be completed efficiently.

[0026] refer to Figure 2The lifting mechanism 3 includes an inner rail 31, which is vertically fixedly installed in the middle of the chassis 1. A first motor 32 is fixedly installed at the bottom of the inner rail 31, and a one-way screw rod 33 is fixedly installed at the output end of the first motor 32. The one-way screw rod 33 is rotatably connected to the inside of the inner rail 31. A sliding block 34 is threadedly connected to the outer surface of the one-way screw rod 33. The front side of the sliding block 34 is fixedly connected to the back side of the bearing plate 61. The inner rail 31 is firmly installed in the center of the chassis 1 as a guide and support for the lifting movement. The first motor 32 is installed at the bottom of the inner rail 31 as a power source for the lifting mechanism 3. The output end of the first motor 32 is connected to the one-way screw rod 33. By controlling the operation of the first motor 32, the one-way screw rod 33 can be driven to rotate inside the inner rail 31. The outer surface of the one-way screw rod 33 is designed with threads, which are threadedly connected to the sliding block 34. When the one-way screw rod 33 rotates, the sliding block 34 will slide up and down along the inner rail 31 under the drive of the screw rod. The front side of the sliding block 34 is tightly fixed to the back side of the supporting plate 61. Therefore, the up and down movement of the sliding block 34 will drive the supporting plate 61 and the battery pack body 7 thereon to rise and fall together, thereby meeting the requirements of different height positions during the test process. At the same time, the threaded connection method ensures the smoothness and accuracy of the lifting movement, which helps to improve the accuracy of the test results.

[0027] refer to Figure 2 , supporting grooves 64 are provided at both front and rear ends of both sides of the chassis 1, and both front and rear ends of both sides of the carrying plate 61 are rotatably connected with guide wheels 65, and the outer side of the guide wheel 65 is fitted and connected with the inner wall of the supporting groove 64. When the carrying plate 61 moves up and down under the action of the lifting mechanism 3, the guide wheel 65 will roll in the supporting groove 64, thereby greatly reducing friction, making the lifting movement smoother, and reducing wear and energy consumption, which not only ensures the stability of the structure, but also improves the smoothness of the movement, thereby extending the service life of the test device and improving its work efficiency. At the same time, it also brings great convenience to users during use and maintenance.

[0028] refer to Figure 4The driving component 62 includes a slide groove 621 and a second motor 622. The slide groove 621 is opened in the middle of the supporting plate 61, and the second motor 622 is fixedly installed in the middle of one side of the supporting plate 61. The internal rotation of the slide groove 621 is connected with a bidirectional screw rod 623. The two ends of the bidirectional screw rod 623 have opposite threads. Both ends of the bidirectional screw rod 623 are threadedly connected with a slider 624. The top of the slider 624 is fixedly connected to the bottom of the clamping component 63. The driving component 62 is an important part of the supporting mechanism 6, which is used to drive the clamping component 63 to clamp. The movement of the slider 624 will drive the clamping component 63 to perform corresponding clamping or loosening actions. The driving component 62 can accurately control the clamping force and position of the clamping component 63 according to actual needs, thereby realizing stable clamping of battery packs of different sizes, which not only improves the flexibility and accuracy of clamping, but also ensures the stability and safety during the test.

[0029] The overall shape of the slider 624 and the sliding block 34 are both set to a convex shape, and the inner wall cross-sectional shape of the slide groove 621 and the inner rail 31 is also set to a convex shape. The overall shape of the slider 624 and the sliding block 34 are both cleverly designed to be a convex shape, which increases the contact area between them and the slide groove 621 and the inner rail 31, improves stability, and ensures their guidance during movement. The convex cross-sectional shape enables the slider 624 and the sliding block 34 to fit tightly in the slide groove 621 and the inner rail 31, reducing the shaking caused by movement, thereby improving the stability of the entire device. At the same time, the convex design also enables the slider 624 and the sliding block 34 to better withstand and disperse the force when subjected to external force, avoiding damage caused by excessive local force, which not only extends the service life of the device, but also improves its working performance. While ensuring the stability of the device, it also improves its durability and work efficiency.

[0030] refer to Figure 4The clamping assembly 63 includes a bearing frame 631, which is fixedly mounted on the top of the slider 624. A base plate 632 is fixedly mounted on the bottom of the bearing frame 631. A transmission track 633 is rotatably connected to the inside of the bearing frame 631. A third motor 634 for driving the transmission track 633 is fixedly mounted on one end of the top of the bearing frame 631. The bearing frame 631 is fixedly mounted on the top of the slider 624 and moves with the movement of the slider 624, thereby realizing the flexible positioning of the clamping assembly 63. The base plate 632 is fixedly mounted on the bottom of the bearing frame 631, which is the entire clamping assembly. 63 provides stable support, and the transmission track 633 is rotatably connected to the inside of the supporting frame 631. Its design makes the clamping process smoother and more reliable. The transmission track 633 in the clamping assembly 63 is for easy placement of the battery pack body 7. The transmission track 633 is rotatably connected to the inside of the supporting frame 631. When the battery pack needs to be placed in or taken out, the third motor 634 is started to drive the transmission track 633 to rotate, so that the battery pack body 7 can be transferred toward the inside or outside of the chassis 1. This design makes the placement process of the battery pack more automated and convenient, thereby improving work efficiency.

[0031] refer to Figure 1 An operation window 9 is provided at the upper end of the box door 5, and a bridge handrail 10 is fixedly installed on the side of the front of the box door 5 away from the hinged seat 2. The operation window 9 provided at the upper end of the box door 5 provides a space for users to perform operations when the box door 5 is closed, such as observing the test status, adjusting parameters, etc., thereby avoiding the need to frequently open the box door 5 and greatly improving the efficiency of the test work. In addition, a bridge handrail 10 is fixedly installed on the front side of the box door 5 away from the hinged seat 2. The design of this handrail is intended to provide users with a stable support point, making it more labor-saving and safer when opening or closing the box door 5. The shape of the bridge handrail 10 is ergonomic and comfortable to the touch, and it will not cause fatigue to the user even if used for a long time.

[0032] Principle and advantages of use: by setting the bearing mechanism 6, during use, by starting the second motor 622 to run, the second motor 622 is used to drive the bidirectional screw rod 623 to rotate, and the rotation of the bidirectional screw rod 623 can assist in driving the slider 624 to slide inside the slide groove 621, and the sliders 624 are located inside the slide groove 621 and slide and displace relative to each other, and the sliders 624 can push the bearing frames 631 to displace relative to each other, and then the battery pack body 7 is placed between the inner sides of the bearing frames 631, and the inner sides of the transmission crawlers 633 are attached to the two sides of the battery pack body 7, and the battery pack body 7 can be stably clamped and positioned by adjusting the mutual displacement of the two sets of transmission crawlers 633, and can flexibly adapt to clamp battery packs of different sizes. The battery pack body 7 can improve the overall clamping adaptability of the device. At this time, the third motor 634 is started again to run. The third motor 634 can drive the transmission crawler 633 to run. The battery pack body 7 can be transferred toward the inner side of the chassis 1 by the rotation of the transmission crawler 633, so that the battery pack body 7 can be quickly and automatically placed inside the chassis 1. When the battery pack body 7 needs to be taken out, the battery pack body 7 can be moved downward to the bottom of the chassis 1 by starting the lifting mechanism 3. At this time, the third motor 634 is started to drive the transmission crawler 633 to run in the opposite direction, so that the battery pack body 7 can be driven to move toward the outside, which is convenient for quick and automatic battery pack placement, and can maximize the convenience of the overall battery pack placement of the device.

[0033] By setting up the lifting mechanism 3, during use, the box door 5 can be opened and then the battery pack body 7 can be placed on the top of the carrying plate 61. At this time, the battery pack is fixed with the assistance of the carrying mechanism 6, and then the first motor 32 is started to run, and the one-way screw rod 33 is driven to rotate by the first motor 32. The one-way screw rod 33 can be driven to rotate the sliding block 34 to slide up and down inside the inner rail 31. By adjusting the up and down movement of the sliding block 34, the up and down displacement of the carrying plate 61 can be assisted. The up and down displacement of the carrying plate 61 can flexibly adjust the height of the battery pack body 7 to be detected, so that during use of the device, the battery pack body 7 can be placed into the interior of the carrying mechanism 6 through a lower position, and then the battery pack body 7 on the top of the carrying plate 61 is driven to move upward by the lifting mechanism 3. The automatic lifting function can improve the convenience of putting in or taking out the battery pack body 7 of the device, and can simplify the operation and use of the device.

Claims

1. A battery pack testing device, comprising a chassis (1), characterized in that: A door (5) is hingedly mounted on one side of the chassis (1) via a hinge seat (2); a tester (4) is fixedly mounted on the upper end of the chassis (1); a lifting mechanism (3) is fixedly mounted in the middle of the rear side of the chassis (1); a bearing mechanism (6) is fixedly mounted on the lifting mechanism (3); and a controller (8) is fixedly mounted on the lower end of the chassis (1); The bearing mechanism (6) comprises a bearing plate (61), the bearing plate (61) being fixedly mounted on the front side of the lifting mechanism (3), a driving assembly (62) being fixedly mounted in the middle of the bearing mechanism (6), two clamping assemblies (63) being fixedly mounted opposite to each other on the top of the driving assembly (62), and the battery pack body (7) being placed between the clamping assemblies (63).

2. A battery pack testing device according to claim 1, characterized in that: The lifting mechanism (3) comprises an inner rail (31), the inner rail (31) is fixedly mounted in the middle of the chassis (1), a first motor (32) is fixedly mounted at the bottom of the inner rail (31), a one-way screw rod (33) is fixedly mounted at the output end of the first motor (32), the one-way screw rod (33) is rotatably connected to the inside of the inner rail (31), a sliding block (34) is threadedly connected to the outer surface of the one-way screw rod (33), and a side surface of the sliding block (34) is fixedly connected to a bearing plate (61).

3. A battery pack testing device according to claim 1, characterized in that: The chassis (1) is provided with support grooves (64) at both ends, front and rear, on both sides, and guide wheels (65) are rotatably connected to both sides of the bearing plate (61), and the outer side of the guide wheel (65) is fitted and connected to the inner wall of the support groove (64).

4. A battery pack testing device according to claim 2, characterized in that: The driving assembly (62) comprises a slide groove (621) and a second motor (622), wherein the slide groove (621) is opened in the middle of the supporting plate (61), and the second motor (622) is fixedly installed in the middle of one side of the supporting plate (61), and the interior of the slide groove (621) is rotatably connected with a bidirectional screw rod (623), and the threads at both ends of the bidirectional screw rod (623) are rotated in opposite directions, and both ends of the bidirectional screw rod (623) are threadedly connected with a slider (624), and the top of the slider (624) is fixedly connected to the bottom of the clamping assembly (63).

5. A battery pack testing device according to claim 4, characterized in that: The overall shapes of the sliding block (624) and the sliding block (34) are both arranged in a convex shape, and the cross-sectional shapes of the inner walls of the sliding groove (621) and the inner rail (31) are also arranged in a convex shape.

6. A battery pack testing device according to claim 5, characterized in that: The clamping assembly (63) comprises a supporting frame (631), wherein the supporting frame (631) is fixedly mounted on the top of the slider (624), a base plate (632) is fixedly mounted on the bottom of the supporting frame (631), a transmission belt (633) is rotatably connected inside the supporting frame (631), and a third motor (634) for driving the transmission belt (633) is fixedly mounted on one end of the top of the supporting frame (631).

7. A battery pack testing device according to claim 1, characterized in that: An operating window (9) is provided at the upper end of the box door (5), and a bridge-type handrail (10) is fixedly installed on the front side of the box door (5) away from the hinge seat (2).

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