Power lithium battery health state detection device

Abstract

The utility model relates to a kind of power lithium battery health state detection devices, including workbench, frame body, first resistance board and second resistance board, the workbench is used to place power lithium battery, the upper side of first resistance board and second resistance board is located on the same horizontal plane, first resistance board and second resistance board are mutually parallel, first resistance board and second resistance board can be slidably connected on the frame body along horizontal direction, the sliding direction of first resistance board and second resistance board is same. Since the above technical solution is used, when the power lithium battery health state detection device of the utility model is used to detect the expansion of power lithium battery, even if power lithium battery only has slight expansion deformation, slight expansion deformation can also be detected under the assistance of the power lithium battery health state detection device described in the utility model.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery testing devices, specifically to a power lithium battery health status testing device. Background Technology

[0002] The health assessment methods for power lithium batteries mainly include multiple aspects such as appearance inspection, parameter recording, open circuit voltage testing, charge and discharge performance testing, cycle life testing, and high and low temperature performance testing.

[0003] When inspecting the appearance of a power lithium battery, it is usually observed under good lighting conditions for signs of cracks, damage, swelling, or leakage in the casing. However, when detecting whether a power lithium battery has swelled, it is usually done by visual inspection. If the power lithium battery has only slightly swelled or deformed, this slight expansion and deformation may not be detected. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a power lithium battery health status detection device to solve the problem that the existing technology usually uses human visual observation to detect whether the power lithium battery has expanded, and if the power lithium battery has only slightly expanded and deformed, the slight expansion and deformation cannot be detected.

[0005] This utility model is achieved through the following technical solution:

[0006] A power lithium battery health status detection device includes a workbench, a frame, a first support plate, and a second support plate. The workbench is used to place the power lithium battery. The upper sides of the first support plate and the second support plate are located on the same horizontal plane. The first support plate and the second support plate are parallel to each other. Both the first support plate and the second support plate are slidably connected to the frame in the horizontal direction. The sliding directions of the first support plate and the second support plate are the same.

[0007] Furthermore, the frame includes a first mounting rod, a second mounting rod, a connecting part, a first sliding rod, and a second sliding rod. The first mounting rod has a first through hole, and the second mounting rod has a second through hole. The first through hole and the second through hole are directly opposite each other, and their centerlines are horizontally aligned. The connecting part connects the first mounting rod and the second mounting rod. The first sliding rod is slidably fitted into the first through hole, and the second sliding rod is slidably fitted into the second through hole. The first abutment plate and the second abutment plate are both located between the first mounting rod and the second mounting rod. The first abutment plate is fixedly connected to the first sliding rod, and the second abutment plate is fixedly connected to the second sliding rod.

[0008] Furthermore, both the first sliding rod and the second sliding rod are provided with length scale lines.

[0009] Furthermore, the connecting part includes two round rods, both of which are perpendicular to the first mounting rod and the second mounting rod. The two ends of the two round rods are respectively fixed to the two ends of the first mounting rod and the second mounting rod. The first abutment plate has a first through hole that matches the two round rods, and the two round rods are slidably connected to the first through hole in a one-to-one correspondence. The second abutment plate has a second through hole that matches the two round rods, and the two round rods are slidably connected to the second through hole in a one-to-one correspondence.

[0010] Furthermore, it also includes guide rods and a first locking part. There are two guide rods, and two guide holes are formed on the worktable. The guide holes are arranged vertically, and the two guide rods are located in the two guide holes in a one-to-one correspondence. The upper ends of the two guide rods are respectively connected to the first mounting rod and the second mounting rod. The first locking part is used to lock the position of the guide rods in the vertical direction.

[0011] Furthermore, the first locking part includes a plug rod, and each of the two guide rods has a plug hole that mates with the plug rod, and the plurality of plug holes are arranged at intervals along the length direction of the guide rod.

[0012] Furthermore, it also includes a first clamping block, a second clamping block, and a second locking part. The first clamping block and the second clamping block are slidably connected to the worktable. The first clamping block and the second clamping block are arranged parallel to the first mounting rod and the second mounting rod. The second locking part is used to lock the position of the first clamping block and the second clamping block on the worktable.

[0013] Furthermore, the worktable is provided with a sliding groove, the first clamping block is connected to a first slider, the second clamping block is connected to a second slider, and the first slider and the second slider are slidably connected to the sliding groove.

[0014] Furthermore, the second locking part includes a first threaded rod, a second threaded rod, and a knob. The first threaded rod is arranged perpendicular to the first clamping block. The first slider has a first threaded hole that engages with the first threaded rod, and the first threaded rod is screwed into the first threaded hole. The second threaded rod is arranged perpendicular to the second clamping block. The second slider has a second threaded hole that engages with the second threaded rod, and the second threaded rod is screwed into the second threaded hole. The first threaded rod and the second threaded rod have opposite directions of rotation. One end of the first threaded rod is rotatably connected to the slide groove. The other end of the first threaded rod is connected to one end of the second threaded rod. The other end of the second threaded rod passes through the slide groove wall and communicates with the outer surface of the worktable. The other end of the second threaded rod is connected to the knob.

[0015] Furthermore, the first clamping block has a first rubber pad on the side facing the second clamping block, and the second clamping block has a second rubber pad on the side facing the first clamping block.

[0016] The beneficial effects of this utility model are as follows:

[0017] When using the power lithium battery health status detection device of this invention to detect the expansion of a power lithium battery, the distance between the first and second supporting plates is measured. Whether the distance between the first and second supporting plates increases indicates whether the power lithium battery has expanded. Even if the power lithium battery has only experienced slight expansion and deformation, this slight expansion and deformation can be detected with the assistance of the power lithium battery health status detection device described in this invention.

[0018] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the power lithium battery health status detection device of this utility model;

[0020] Figure 2 For the present utility model Figure 1 A magnified view of part A in the image;

[0021] Figure 3 For the present utility model Figure 1 A magnified view of part B in the image.

[0022] In the diagram: 1. Workbench; 21. First supporting plate; 22. Second supporting plate; 31. First sliding rod; 32. Second sliding rod; 41. First mounting rod; 42. Second mounting rod; 51. Insert rod; 52. Insertion hole; 61. First threaded rod; 62. Second threaded rod; 71. First slider; 72. Second slider; 81. First clamping block; 82. Second clamping block; 91. First rubber pad; 92. Second rubber pad; 10. Round rod; 11. Guide rod; 12. Slide groove; 13. Length scale line; 14. Knob; Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0028] Please see Figure 1-3 This utility model provides a technical solution: a power lithium battery health status detection device, including a workbench 1, a frame, a first supporting plate 21 and a second supporting plate 22. The workbench 1 is used to place the power lithium battery. The upper sides of the first supporting plate 21 and the second supporting plate 22 are located on the same horizontal plane. The first supporting plate 21 and the second supporting plate 22 are parallel to each other. The first supporting plate 21 and the second supporting plate 22 can be slidably connected to the frame in the horizontal direction. The sliding directions of the first supporting plate 21 and the second supporting plate 22 are the same.

[0029] When using the power lithium battery health status detection device of this utility model to detect whether a square power lithium battery has expanded, first place the power lithium battery on the workbench 1, and use a ruler to adjust the distance between the first support plate 21 and the second support plate 22 to the standard distance between the two opposite sides of the power lithium battery being tested. Then, align the first support plate 21 with the upper edge of one of the two opposite sides, and at this time, align the second support plate 22 with the upper edge of the other side of the two opposite sides. Then, move the mounting frame vertically downwards. The mounting frame drives the first support plate 21 and the second support plate 22 downwards until the first support plate 21 and the second support plate 22 move downwards to the lower end of the power lithium battery. At this time, by measuring the distance between the first support plate 21 and the second support plate 22, it can be determined whether the distance between the first support plate 21 and the second support plate 22 has increased.

[0030] Since both the first abutment plate 21 and the second abutment plate 22 can be slidably connected to the frame in the horizontal direction, the vertical movement of the frame can drive the first abutment plate 21 and the second abutment plate 22 to move vertically. If a part of one side expands, during the downward movement of the first abutment plate 21, the first abutment plate 21 will be squeezed by the expanded part and will move a certain distance away from the second abutment plate 22. If a part of the other side expands, during the downward movement of the second abutment plate 22, the second abutment plate 22 will be squeezed by the expanded part and will move a certain distance away from the first abutment plate 21. Therefore, if the distance between the first abutment plate 21 and the second abutment plate 22 increases, it can be proven that the power lithium battery has expanded.

[0031] With this structure, when the power lithium battery health status detection device of this utility model detects the expansion of the power lithium battery, it measures the distance between the first supporting plate 21 and the second supporting plate 22 to determine whether the distance between the first supporting plate 21 and the second supporting plate 22 has increased, thereby determining whether the power lithium battery has expanded. Even if the power lithium battery has only undergone slight expansion and deformation, with the assistance of the power lithium battery health status detection device of this utility model, slight expansion and deformation can be detected.

[0032] In this embodiment: the frame includes a first mounting rod 41, a second mounting rod 42, a connecting part, a first sliding rod 31, and a second sliding rod 32. The first mounting rod 41 has a first through hole, and the second mounting rod 42 has a second through hole. The first through hole and the second through hole are directly opposite each other, and their axes are horizontally aligned. The connecting part connects the first mounting rod 41 and the second mounting rod 42. The first sliding rod 31 is slidably fitted into the first through hole, and the second sliding rod 32 is slidably fitted into the second through hole. The first abutment plate 21 and the second abutment plate 22 are both located between the first mounting rod 41 and the second mounting rod 42. The first abutment plate 21 is fixedly connected to the first sliding rod 31, and the second abutment plate 22 is fixedly connected to the second sliding rod 32.

[0033] Since the first sliding rod 31 is slidably fitted into the first through hole and the second sliding rod 32 is slidably fitted into the second through hole, and the first and second through holes are directly opposite each other with their axes horizontally aligned, the first sliding rod 31 and the second sliding rod 32 can slide horizontally. With this structure, the first abutment plate 21 and the second abutment plate 22 can be slidably connected to the frame in the horizontal direction.

[0034] In this embodiment, both the first sliding rod 31 and the second sliding rod 32 are provided with length scale lines 13.

[0035] After the first abutment plate 21 and the second abutment plate 22 abut against the side surface of the power lithium battery, the scale line positions of the first mounting rod 41 and the second mounting rod 42 before downward movement can be obtained by reading the scale line positions of the first mounting rod 41 and the second mounting rod 42 on the first sliding rod 31 and the second sliding rod 32. Then, the first abutment plate 21 and the second abutment plate 22 are moved vertically through various parts of the side surface of the power lithium battery, and the scale line positions of the first mounting rod 41 and the second mounting rod 42 on the first sliding rod 31 and the second sliding rod 32 are read, thus obtaining the displacement data of the first sliding rod 31 and the second sliding rod 32 in the horizontal direction.

[0036] In this way, when using the power lithium battery health status detection device of this utility model to detect the expansion of the power lithium battery, it is not necessary to use a ruler to measure whether the distance between the first support plate 21 and the second support plate 22 has increased, making it easier to determine whether the power lithium battery has expanded during the detection.

[0037] In this embodiment: the connecting part includes two round rods 10, both of which are perpendicular to the first mounting rod 41 and the second mounting rod 42. The two ends of each round rod 10 are respectively fixed to the ends of the first mounting rod 41 and the second mounting rod 42. The first abutment plate 21 has first through holes matching the two round rods 10, and the two round rods 10 are slidably connected to the first through holes in a one-to-one correspondence. The second abutment plate 22 has second through holes matching the two round rods 10, and the two round rods 10 are slidably connected to the second through holes in a one-to-one correspondence. With this structure, the first abutment plate 21 and the second abutment plate 22 will not rotate when moving horizontally or vertically.

[0038] In this embodiment, the system also includes guide rods 11 and a first locking part. There are two guide rods 11, and two guide holes are formed on the worktable 1. The guide holes are arranged vertically, and the two guide rods 11 are located in the two guide holes in a one-to-one correspondence. The upper ends of the two guide rods 11 are respectively connected to the first mounting rod 41 and the second mounting rod 42. The first locking part is used to lock the position of the guide rods 11 in the vertical direction.

[0039] When using the power lithium battery health status detection device of this utility model to detect the expansion of the power lithium battery, first lock the mounting bracket above the power lithium battery. After adjusting the positions of the first support plate 21 and the second support plate 22, release the lock on the vertical position of the mounting bracket. Since the upper ends of the two guide rods 11 are respectively connected to the first mounting rod 41 and the second mounting rod 42, and the two guide rods 11 are located in the two guide holes in a one-to-one correspondence, and the guide holes are arranged vertically, after releasing the lock on the vertical position of the mounting bracket, the first mounting rod 41 and the second mounting rod 42 will move vertically along the length direction of the guide rod 11. With this structure, when using the power lithium battery health status detection device of this utility model to detect the expansion of the power lithium battery, the bracket can move vertically.

[0040] In this embodiment: the first locking part includes a plug rod 51, and each of the two guide rods 11 has a plug hole 52 that cooperates with the plug rod 51. The plurality of plug holes 52 are arranged at intervals along the length direction of the guide rod 11.

[0041] Before using the power lithium battery health status detection device of this utility model to detect the expansion of the power lithium battery, after raising the mounting bracket above the power lithium battery, use the insertion rod 51 to pass through the insertion hole 52 closest to the upper side of the workbench 1, and the mounting bracket can be locked above the power lithium battery; when using the power lithium battery health status detection device of this utility model to detect the expansion of the power lithium battery, pull the insertion rod 51 out of the insertion hole 52 to release the position lock of the mounting bracket, and the mounting bracket can be moved vertically.

[0042] With this structure, the first locking part can lock the mounting bracket above the power lithium battery.

[0043] In this embodiment, a first clamping block 81, a second clamping block 82, and a second locking part are also included. The first clamping block 81 and the second clamping block 82 are slidably connected to the worktable 1. The first clamping block 81 and the second clamping block 82 are arranged parallel to the first mounting rod 41 and the second mounting rod 42. The second locking part is used to lock the position of the first clamping block 81 and the second clamping block 82 on the worktable 1.

[0044] Before placing the power lithium battery on the worktable 1, the first clamping block 81 and the second clamping block 82 can be moved away from each other. Then, the power lithium battery is placed between the first clamping block 81 and the second clamping block 82. The first clamping block 81 and the second clamping block 82 are moved towards the side of the power lithium battery. After the first clamping block 81 and the second clamping block 82 abut against the side of the power lithium battery, the positions of the first clamping block 81 and the second clamping block 82 are locked by the second locking part, thus clamping the power lithium battery. The power lithium battery can be fixed on the worktable 1, reducing the possibility of movement during the testing process and thus reducing the possibility of the test results being affected.

[0045] In this embodiment: the worktable 1 is provided with a sliding groove 12, the first clamping block 81 is connected to the first slider 71, and the second clamping block 82 is connected to the second slider 72. The first slider 71 and the second slider 72 are slidably connected to the sliding groove 12. With this structure, the first clamping block 81 and the second clamping block 82 can be slidably connected to the worktable 1.

[0046] In this embodiment: the second locking part includes a first threaded rod 61, a second threaded rod 62, and a knob 14. The first threaded rod 61 is arranged perpendicularly to the first clamping block 81. The first slider 71 has a first threaded hole that engages with the first threaded rod 61. The second threaded rod 61 is arranged perpendicularly to the second clamping block 82. The second slider 72 has a second threaded hole that engages with the second threaded rod 62. The second threaded rod 62 is screwed into the second threaded hole. The first threaded rod 61 and the second threaded rod 62 have opposite directions of rotation. One end of the first threaded rod 61 is rotatably connected to the slide groove 12. The other end of the first threaded rod 61 is connected to one end of the second threaded rod 62. The other end of the second threaded rod 62 passes through the wall of the slide groove 12 and communicates with the outer surface of the workbench 1. The other end of the second threaded rod 62 is connected to the knob 14.

[0047] Before testing the power lithium battery, rotating knob 14 forward causes the first threaded rod 61 and the second threaded rod 62 to rotate in the forward direction. Since the first threaded rod 61 and the second threaded rod 62 rotate in opposite directions, the first clamping block 81 and the second clamping block 82 move away from each other. Then, the power lithium battery is placed between the first clamping block 81 and the second clamping block 82. Rotating knob 14 in the reverse direction causes the first threaded rod 61 and the second threaded rod 62 to rotate in opposite directions. Since the first threaded rod 61 and the second threaded rod 62 rotate in opposite directions, the first clamping block 81 and the second clamping block 82 move closer to each other until the first clamping block 81 and the second clamping block 82 abut against the side of the power lithium battery. When knob 14 is stopped, the first threaded rod 61 and the second threaded rod 62 cannot rotate, and the second locking part locks the position of the first clamping block 81 and the second clamping block 82 on the worktable 1.

[0048] In this embodiment, the second threaded rod 62 is connected to a limiting block, which abuts against the inner wall of the end of the slide groove 12 away from the second threaded rod 62. The knob 14 abuts against the side of the worktable 1. With this structure, the first threaded rod 61 and the second threaded rod 62 will not slide along the length direction of the slide groove 12 when they rotate.

[0049] In this embodiment: the first clamping block 81 is provided with a first rubber pad 91 on the side facing the second clamping block 82, and the second clamping block 82 is provided with a second rubber pad 92 on the side facing the first clamping block 81.

[0050] The first rubber pad 91 abuts against the power lithium battery on the side facing the second clamping plate, and the second rubber pad 92 abuts against the power lithium battery on the side facing the first clamping plate, which can reduce the possibility of the power lithium battery being damaged during the testing process to a certain extent.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A power lithium battery health status detection device, characterized in that: The device includes a workbench (1), a frame, a first abutment plate (21), and a second abutment plate (22). The workbench (1) is used to place a power lithium battery. The upper sides of the first abutment plate (21) and the second abutment plate (22) are located on the same horizontal plane. The first abutment plate (21) and the second abutment plate (22) are parallel to each other. The first abutment plate (21) and the second abutment plate (22) can be slidably connected to the frame in the horizontal direction. The sliding directions of the first abutment plate (21) and the second abutment plate (22) are the same. The frame includes a first mounting rod (41), a second mounting rod (42), a connecting part, a first sliding rod (31), and a second sliding rod (32). The first mounting rod (41) has a first through hole, and the second mounting rod (42) has a second through hole. The first through hole and the second through hole are directly opposite each other, and the axis of the first through hole and the second through hole are horizontally arranged. The connecting part connects the first mounting rod (41) and the second mounting rod (42). The first sliding rod (31) is slidably fitted in the first through hole, and the second sliding rod (32) is slidably fitted in the second through hole. The first abutment plate (21) and the second abutment plate (22) are both located between the first mounting rod (41) and the second mounting rod (42). The first abutment plate (21) is fixedly connected to the first sliding rod (31), and the second abutment plate (22) is fixedly connected to the second sliding rod (32). The connecting part includes two round rods (10), both of which are perpendicular to the first mounting rod (41) and the second mounting rod (42). The two ends of the two round rods (10) are respectively fixed to the two ends of the first mounting rod (41) and the second mounting rod (42). The first abutment plate (21) is provided with a first through hole that matches the two round rods (10), and the two round rods (10) are slidably connected to the first through hole in a one-to-one correspondence. The second abutment plate (22) is provided with a second through hole that matches the two round rods (10), and the two round rods (10) are slidably connected to the second through hole in a one-to-one correspondence.

2. The power lithium battery health status detection device according to claim 1, characterized in that: Both the first sliding rod (31) and the second sliding rod (32) are provided with length scale lines (13).

3. The power lithium battery health status detection device according to claim 1, characterized in that: It also includes guide rods (11) and a first locking part. There are two guide rods (11). Two guide holes are formed on the worktable (1). The guide holes are arranged vertically. The two guide rods (11) are located in the two guide holes one to one. The upper ends of the two guide rods (11) are respectively connected to the first mounting rod (41) and the second mounting rod (42). The first locking part is used to lock the position of the guide rods (11) in the vertical direction.

4. The power lithium battery health status detection device according to claim 3, characterized in that: The first locking part includes a plug rod (51), and each of the two guide rods (11) has a plug hole (52) that cooperates with the plug rod (51). The plurality of plug holes (52) are arranged at intervals along the length direction of the guide rod (11).

5. The power lithium battery health status detection device according to claim 1, characterized in that: It also includes a first clamping block (81), a second clamping block (82), and a second locking part. The first clamping block (81) and the second clamping block (82) are slidably connected to the worktable (1). The first clamping block (81) and the second clamping block (82) are arranged parallel to the first mounting rod (41) and the second mounting rod (42). The second locking part is used to lock the position of the first clamping block (81) and the second clamping block (82) on the worktable (1).

6. The power lithium battery health status detection device according to claim 5, characterized in that: The workbench (1) is provided with a slide groove (12), the first clamping block (81) is connected to a first slider (71), the second clamping block (82) is connected to a second slider (72), and the first slider (71) and the second slider (72) are slidably connected to the slide groove (12).

7. The power lithium battery health status detection device according to claim 6, characterized in that: The second locking part includes a first threaded rod (61), a second threaded rod (62), and a knob (14). The first threaded rod (61) is arranged perpendicular to the first clamping block (81). The first slider (71) is provided with a first threaded hole that engages with the first threaded rod (61). The first threaded rod (61) is screwed into the first threaded hole. The second threaded rod (62) is arranged perpendicular to the second clamping block (82). The second slider (72) is provided with a second threaded hole that engages with the second threaded rod (62). The second threaded rod (62) is screwed into the second threaded hole. The first threaded rod (61) and the second threaded rod (62) have opposite directions of rotation. One end of the first threaded rod (61) is rotatably connected to the slide groove (12). The other end of the first threaded rod (61) is connected to one end of the second threaded rod (62). The other end of the second threaded rod (62) passes through the wall of the slide groove (12) and communicates with the outer facade of the worktable (1). The other end of the second threaded rod (62) is connected to the knob (14).

8. The power lithium battery health status detection device according to claim 5, characterized in that: The first clamping block (81) has a first rubber pad (91) on the side facing the second clamping block (82), and the second clamping block (82) has a second rubber pad (92) on the side facing the first clamping block (81).

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