Lithium battery test auxiliary device

Abstract

The utility model discloses a lithium battery test auxiliary device, relates to the technical field of lithium battery test, and aims to solve the problems that the gravity of a cable in the prior art can generate a force vertical to the direction of a tab to the tab, the tab is damaged after long-time use, the contact is poor, the test result is influenced if the force is light, and the heat is generated if the force is heavy to cause safety accidents. According to the scheme, the device comprises a quick clamping fixator, a horizontal supporting rod is arranged below the quick clamping fixator, a device support assembly is arranged on one side of the lower portion of the horizontal supporting rod, the other end of the device support assembly is connected to a base, and a fixing assembly is arranged at the position, located on one side of the device support assembly, of the upper portion of the base; according to the utility model, the structure is novel, the cable is fixed through the quick-clamping fixer, the horizontal support rod is arranged below the quick-clamping fixer to support the power cable to offset the gravity of the power cable at the position, and the stability is improved by adopting the triangular mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery testing, in particular to a lithium battery testing auxiliary device. Background Art

[0002] Lithium-ion battery is a kind of energy storage device that converts electrical energy and chemical energy into each other. Lithium-ion battery packaging has high reliability, high system energy efficiency, relatively light weight, high energy density, simple structure, and relatively convenient capacity expansion. It is an important option for increasing energy density by increasing the capacity of single cells. If the single cell capacity is large, the system structure is relatively simple, making it possible to monitor each single cell one by one. Another benefit of the simple system is relatively good stability.

[0003] Currently, both battery performance and safety need to be tested, and as the battery capacity becomes higher and higher, the testing requirements are also getting higher and higher, especially the requirements for rate performance. During the test of a 280Ah lithium-ion battery, the pole lugs need to be welded first, and then the terminals of the power cable are connected to the pole lugs for testing. However, the 5C rate current is as high as 1400A, the cable diameter is as high as 52mm, and the weight is about 10KG. Due to the gravity of the cable, a force perpendicular to the direction of the pole lug will be generated on the pole lug. Long-term use will damage the pole lug, resulting in poor contact, which will affect the test results at the least and generate heat and cause safety accidents at the worst. Utility Model Content

[0004] The utility model provides a lithium battery testing auxiliary device, which solves the existing problems.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lithium battery testing auxiliary device, including a quick clamp fixture, the quick clamp fixture is a circular ring structure, and the quick clamp fixture is used to fix the internal power cable, a horizontal support rod is arranged below the quick clamp fixture, and the horizontal support rod is used to support the upper power cable, a device bracket assembly is arranged on one side below the horizontal support rod, the other end of the device bracket assembly is connected to the base, and a fixing assembly is arranged above the base on one side of the device bracket assembly, and the fixing assembly is used to fix the internal battery cell.

[0006] Preferably, the lower end of the quick clamp fixture is a square connection structure, and the upper end of the quick clamp fixture is a ring structure with a diameter of 52 mm, the quick clamp fixture is matched with the internal power cable, and the quick clamp fixture includes a positive pole fixture and a negative pole fixture, the horizontal support rod is a rectangular structure, and the length of the horizontal support rod is 100 mm, and the horizontal support rod is horizontally arranged below the quick clamp fixture.

[0007] Preferably, the device bracket assembly includes a connecting rod, the connecting rod is inclinedly supported and has one end below the horizontal support rod, a fixing rod is vertically connected to the upper end below the connecting rod, and the connecting rod and one end of the fixing rod are commonly connected to a base plate, and the connecting rod, the fixing rod and the base plate are connected to form a triangular structure.

[0008] Preferably, the fixing assembly comprises a left clamping plate and a right clamping plate, and the left clamping plate and the right clamping plate are spaced apart from each other to form a slot clamping structure with one end above the base.

[0009] Preferably, a symmetrical groove is opened at one end above the bottom plate, and sliding grooves are opened on both sides of the groove, a roller rod is connected inside the sliding groove, and a fixing rod is connected outside the roller rod, and a connecting plate is connected to the outer end of the roller rod, one end of the connecting plate is connected to an electric push rod, a rotating rod is provided at one end of the connecting rod, and both ends of the rotating rod are connected to fixed seats.

[0010] Preferably, a slot is provided at one lower end of the horizontal support rod, a support plate is connected inside the slot, a screw rod is connected inside one end of the horizontal support rod, and a motor is connected to one end of the screw rod.

[0011] The beneficial effects of the utility model are as follows: the device fixes the power cable through a quick-clip fixture with a diameter of 52mm, prevents the horizontal movement of the power cable from causing horizontal force damage to the pole ear and the rear end weight from prying the connecting terminal to cause vertical force damage to the pole ear, and the quick-clip method is convenient for operating and installing the power cable; a horizontal support rod with a length of 52mm is arranged under the quick-clip fixture to support the power cable to offset the gravity of the power cable at this position, and prevent the power cable water from causing vertical force damage to the pole ear; the connecting rod, the device bracket assembly and the bottom plate are interconnected to form a triangular mechanism inside to improve stability, and the lower end is fixed to the base to ensure the stability of the entire support part; the fixing assembly cooperates with the base, and forms a slot clamp by the left and right clamps in the fixing assembly to fix the battery cell and prevent the battery cell from moving; the entire device uses a metal outer covering Teflon material to ensure the support strength of the device and prevent short circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a structural side view of the utility model.

[0014] Figure 3 It is a structural front view of the utility model.

[0015] Figure 4 This is a structural schematic diagram of the second embodiment of the present utility model.

[0016] Figure 5 It is a schematic diagram of the disassembly of the device bracket assembly of the utility model.

[0017] Numbers in the figure: 1. Quick-clamp fixture; 11. Positive electrode fixture; 12. Negative electrode fixture; 2. Horizontal support rod; 21. Support plate; 22. Screw rod; 23. Motor; 3. Device bracket assembly; 31. Connecting rod; 32. Fixing rod; 33. Bottom plate; 34. Roller rod; 35. Connecting plate; 36. Electric push rod; 37. Rotating rod; 38. Fixed seat; 4. Base; 5. Fixing assembly; 51. Left clamping plate; 52. Right clamping plate; 6. Battery cell; 7. Power cable. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Embodiment 1

[0020] Reference Figure 1-Figure 3 A lithium battery testing auxiliary device includes a quick clamp fixture 1, which is a circular ring structure and is used to fix an internal power cable 7. A horizontal support rod 2 is provided below the quick clamp fixture 1, and the horizontal support rod 2 is used to support the upper power cable 7. A device bracket assembly 3 is provided on one side below the horizontal support rod 2, and the other end of the device bracket assembly 3 is connected to a base 4, and a fixing assembly 5 is provided on one side of the device bracket assembly 3 above the base 4, and the fixing assembly 5 is used to fix an internal battery cell 6, and the shape of the battery cell 6 includes but is not limited to cylindrical, square, etc.

[0021] Reference Figure 2 , Figure 3The lower end of the quick-clip fixture 1 is a square connection structure, and the upper end of the quick-clip fixture 1 is a quick-clip structure with a diameter of 52mm. The quick-clip fixture 1 is matched with the internal power cable 7, and the quick-clip fixture 1 includes a positive fixture 11 and a negative fixture 12. The horizontal support rod 2 is a rectangular structure, and the length of the horizontal support rod 2 is 100mm. The horizontal support rod 2 is horizontally arranged below the quick-clip fixture 1, and the power cable 7 is placed inside the quick-clip fixture 1. The positive and negative fixtures 11 and 12 are used to fix the power cable 7 to prevent the horizontal movement of the cable from causing horizontal force damage to the pole ear and the rear end weight from prying the connection terminal to cause vertical force damage to the pole ear. At the same time, the annular quick clamp method is convenient for operating and installing the power cable 7. By adopting a horizontal support rod 2 with a length of 100mm, the power cable 7 is supported to offset the gravity of the power cable 7 at this position, preventing the power cable 7 from causing vertical force damage to the pole ear.

[0022] Reference Figure 3 The device bracket assembly 3 includes a connecting rod 31, and the connecting rod 31 is tilted to support one end below the horizontal support rod 2. The upper end below the connecting rod 31 is vertically connected to a fixing rod 32, and the connecting rod 31 and one end of the fixing rod 32 are commonly connected to a bottom plate 33, and the connecting rod 31, the fixing rod 32 and the bottom plate 33 are connected to form a triangular structure. The fixing assembly 5 includes a left clamping plate 51 and a right clamping plate 52, and the left clamping plate 51 and the right clamping plate 52 are spaced apart to form a card slot clamping structure with one end above the base 4. The device bracket assembly 3 improves stability by adopting an internal triangular structure, and is fixed to the base 4 to ensure the stability of the entire supporting part. The left clamping plate 51 and the right clamping plate 52 cooperate to fix the battery cell 6 to prevent the battery cell 6 from moving.

[0023] In this embodiment, first, the power cable 7 is placed inside the quick-clamp fixture 1 with a diameter of 52 mm, which fixes the power cable 7 and prevents the horizontal movement of the power cable 7 from causing horizontal force damage to the pole ear and the rear end weight from prying the connecting terminal to cause vertical force damage to the pole ear. The quick-clamp method is convenient for operating and installing the power cable 7; then a horizontal support rod 2 with a length of 100 mm is set under the quick-clamp fixture 1 to offset the gravity of the power cable 7 at this position, and then the triangular structure formed by the connecting rod 31, the fixing rod 32 and the bottom plate 33 is connected to ensure the stability of the entire supporting part; finally, the battery cell 6 is fixed by the card slot clamp formed by the left clamp plate 51 and the right clamp plate 52.

[0024] Embodiment 2

[0025] refer to Figure 4 , Figure 5, which is different from the first embodiment in that: a symmetrical groove is opened at one end above the bottom plate 33, and sliding grooves are opened on both sides of the groove, a roller rod 34 is connected inside the sliding groove, and a fixing rod 32 is connected to the outside of the roller rod 34, and a connecting plate 35 is connected to the outer end of the roller rod 34, and one end of the connecting plate 35 is connected to an electric push rod 36, a rotating rod 37 is provided at one end of the connecting rod 31, and a fixing seat 38 is connected to both ends of the rotating rod 37, and a notch is opened at one end below the horizontal support rod 2, and a support plate 21 is connected inside the notch, and a screw rod 22 is connected inside one end of the horizontal support rod 2, and a motor 23 is connected to one end of the screw rod 22, and the fixing rod 32 is driven to move by pushing the roller rod 34, and the connecting rod 31 follows the fixed rod 32 to change the inclination angle and change its highest point position, and the screw rod 22 drives the horizontal support rod 2 to rotate and change the placement angle of the quick clamp fixer 1, and a support plate 21 is provided between the horizontal support rod 2 and the connecting rod 31 to improve the placement stability.

[0026] First, place the power cable 7 inside the quick-clip fixture 1, then clamp the horizontal support rod 2 between the left clamp plate 51 and the right clamp plate 52 for fixation, start the electric push rod 36 to push the fixing rod 32 to move as far as possible, and the connecting rod 31 is lifted according to the movement of the fixing rod 32 to be parallel to the height of the battery cell 6, then start the motor 23 to rotate the screw rod 22 to adjust the placement angle of the power cable 7, and provide a support plate 21 between the horizontal support rod 2 and the connecting rod 31 to support the quick-clip fixture 1, so as to improve the stability of the placement of the power cable 7, and finally connect it with the battery cell 6.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery testing auxiliary device, comprising a quick clamp fixture (1), characterized in that: The quick-clip fixture (1) is a circular ring structure, and the quick-clip fixture (1) is used to fix the internal power cable (7). A horizontal support rod (2) is arranged below the quick-clip fixture (1), and the horizontal support rod (2) is used to support the upper power cable (7). A device support assembly (3) is arranged on one side below the horizontal support rod (2), and the other end of the device support assembly (3) is connected to the base (4), and a fixing assembly (5) is arranged above the base (4) on one side of the device support assembly (3), and the fixing assembly (5) is used to fix the internal battery cell (6).

2. A lithium battery testing auxiliary device according to claim 1, characterized in that: The lower end of the quick-clip fixture (1) is a square connection structure, and the upper end of the quick-clip fixture (1) is a ring structure with a diameter of 52 mm. The quick-clip fixture (1) is matched with the internal power cable (7), and the quick-clip fixture (1) includes a positive electrode fixture (11) and a negative electrode fixture (12). The horizontal support rod (2) is a rectangular structure, and the length of the horizontal support rod (2) is 100 mm. The horizontal support rod (2) is horizontally arranged below the quick-clip fixture (1).

3. A lithium battery testing auxiliary device according to claim 1, characterized in that: The device support assembly (3) comprises a connecting rod (31), wherein the connecting rod (31) is tiltedly supported at one end below the horizontal support rod (2), a fixing rod (32) is vertically connected to the upper end below the connecting rod (31), and one end of the connecting rod (31) and the fixing rod (32) are commonly connected to a bottom plate (33), and the connecting rod (31), the fixing rod (32) and the bottom plate (33) are connected to form a triangular structure.

4. A lithium battery testing auxiliary device according to claim 1, characterized in that: The fixing assembly (5) comprises a left clamping plate (51) and a right clamping plate (52), and the left clamping plate (51) and the right clamping plate (52) are spaced apart from each other to form a clamping groove structure at one end above the base (4).

5. A lithium battery testing auxiliary device according to claim 3, characterized in that: A symmetrical groove is provided at one end above the bottom plate (33), and sliding grooves are provided on both sides of the groove. A roller rod (34) is connected inside the sliding groove, and a fixing rod (32) is connected outside the roller rod (34). A connecting plate (35) is connected to the outer end of the roller rod (34), and an electric push rod (36) is connected to one end of the connecting plate (35). A rotating rod (37) is provided at one end of the connecting rod (31), and both ends of the rotating rod (37) are connected to fixing seats (38).

6. A lithium battery testing auxiliary device according to claim 1, characterized in that: A slot is provided at one lower end of the horizontal support rod (2), a support plate (21) is connected inside the slot, a screw rod (22) is connected inside one end of the horizontal support rod (2), and a motor (23) is connected at one end of the screw rod (22).

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