Fixing device for battery cell thermal runaway detection

Abstract

The utility model relates to a fixing device for battery cell thermal runaway detection, in particular to the technical field of new energy battery testing. The device comprises a fixed base, a first fixed plate, a second fixed plate, a movable plate, a sliding rod, a rotating screw rod and a positioner, and adjustment is conducted by rotating the rotating screw rod; the position size between the first clamping plate and the second clamping plate is adjusted so as to be matched with the size of a fixed battery cell and the position sizes of a plurality of battery cells, so that the plurality of battery cells are quickly mounted and fixed, and the mounting efficiency is greatly improved; a torque wrench can conduct torque locking on the device through an inner hexagon, and the situation that in the prior art, locking is conducted on the four corners of a plate, and stress is not uniform is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy battery test technical field especially relates to a fixed device for battery thermal runaway detection. BACKGROUND

[0002] In order to verify the thermal diffusion caused by the thermal runaway of single battery of whole vehicle, passengers can evacuate safely in effective time, and the single battery of new energy is tested and verified.

[0003] During the testing and verification process, 1-3 battery cells need to be assembled and tested, and the battery cells need to be fixed during the assembly process, and temperature collection lines and voltage collection lines need to be arranged. At present, the fixing mode adopts two clamping plates to fix, the torsion stress is uneven, the effect is poor, and the installation efficiency is very poor. UTILITY MODEL CONTENT

[0004] (1) technical problem to be solved

[0005] The utility model provides a fixed device for battery thermal runaway detection, which overcomes the shortcomings of uneven torsion stress, poor effect and poor installation efficiency when the battery cells are fixed by two clamping plates during thermal runaway detection.

[0006] (2) technical scheme

[0007] In order to solve the above technical problems, the utility model provides a fixed device for battery thermal runaway detection, which comprises a fixed base, a first fixed plate, a second fixed plate, a moving plate, a slide rod, a rotating screw, a positioner, the fixed base is provided with the first fixed plate and the second fixed plate from one side to the other side on the top, the moving plate is located between the first fixed plate and the second fixed plate and is arranged in parallel with the first fixed plate and the second fixed plate, the slide rod penetrating through the moving plate is connected between the first fixed plate and the second fixed plate, the rotating screw is arranged through the second fixed plate, and the rotating screw is threadedly connected with a threaded cap fixed on the second fixed plate, one end of the rotating screw is rotatably connected in a sleeve, the other end of the rotating screw is provided with an internal hexagonal port, the sleeve is fixed on one side of the moving plate, and the rotating screw between the threaded cap and the internal hexagonal port is threadedly connected with the positioner for locking the rotation of the rotating screw.

[0008] Preferably, the first fixed plate is provided with a first clamping plate on one side close to the moving plate, and the other side of the moving plate is provided with a second clamping plate.

[0009] Preferably, the number of slide rods is four, and the four slide rods penetrate through four corners of the moving plate, and the moving plate is slidably connected with the slide rods.

[0010] Preferably, the positioner comprises a fixed head sleeved on the rotating screw rod and a handle connected with the fixed head.

[0011] Preferably, the fixed head is in a ring structure and an inner wall of the fixed head is provided with an inner thread matched with an outer wall of the rotating screw rod.

[0012] (3)Beneficial effects

[0013] The utility model provides a fixed device for battery cell thermal runaway detection, overcomes the shortcoming that the battery cell is fixed by two clamping plates when carrying out thermal runaway detection, the uneven torsion stress, the poor effect and the very poor installation efficiency.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The position between the first clamping plate and the second clamping plate is adjusted by rotating the rotating screw rod, so that the position of the fixed battery cell size and the multiple battery cells is matched, thereby realizing the quick installation and fixation of the multiple battery cells and greatly improving the installation efficiency.

[0016] 2. The other end of the rotating screw rod is provided with an inner hexagonal port, and a torque wrench can be used to lock the device by the inner hexagonal port, avoiding the uneven stress caused by the traditional locking of the four corners of the plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model when fixing the battery cell.

[0018] Figure 2 It is a three-dimensional structure schematic view of the utility model.

[0019] The reference signs are as follows: 1-fixed base, 2-first fixed plate, 21-first clamping plate, 3-second fixed plate, 31-threaded cap, 4-moving plate, 41-second clamping plate, 42-sleeve, 5-sliding rod, 6-rotating screw rod, 61-inner hexagonal port, 7-positioner, 71-fixed head, 72-handle, 8-battery cell. DETAILED DESCRIPTION

[0020] The utility model is further described in combination with the drawings and examples.

[0021] As Figure 1 , 2The utility model discloses a kind of fixed devices for battery thermal runaway detection, including fixed base 1, first fixed plate 2, second fixed plate 3, moving plate 4, slide bar 5, rotating screw 6, positioner 7, the first fixed plate 2 and the second fixed plate 3 are sequentially equipped with on the top of the fixed base 1 from one side to the other side, the moving plate 4 is between the first fixed plate 2 and the second fixed plate 3 And the first fixed plate 2 and the second fixed plate 3 are parallelly arranged, the slide bar 5 is connected between the first fixed plate 2 and the second fixed plate 3 and penetrates the moving plate 4, the rotating screw 6 is arranged and penetrates the second fixed plate 3, and the rotating screw 6 is threadedly connected with the screw cap 31 fixed on the second fixed plate 3, one end of the rotating screw 6 can be rotatably connected in sleeve 42, the other end of the rotating screw 6 is provided with internal hexagonal port 61, and torque wrench can be locked by internal hexagonal device, avoid traditional in board four corners lock, uneven stress.

[0022] The first fixed plate 2 is equipped with first clamping plate 21 on one side close to the moving plate 4, and second clamping plate 41 is equipped on the other side of the moving plate 4.

[0023] The number of the slide bar 5 is four and penetrates the four corners of the moving plate 4 respectively, and the moving plate 4 is slidably connected with the slide bar 5, and the slide bar 5 is arranged to guide the moving plate 4 during movement.

[0024] The positioner 7 includes fixed head 71 sleeved on the rotating screw 6 and handle 72 connected with the fixed head 71, the fixed head 71 is annular structure and is equipped with internal thread matched with the outer wall of the rotating screw 6 on inner wall, can move fixed head 71 by rotating handle 72, when fixed head 71 abuts with screw cap 31, thereby realizing the locking of rotating screw 6, avoid rotating screw 6 rotation.

[0025] In actual use process, the battery 8 to be tested is placed on the fixed base 1, adjusted by rotating the rotating screw 6, adjust the position size between the first clamping plate 21 and the second clamping plate 41 to adapt to the size of fixed battery and the position size of multiple batteries, so as to realize the installation and fixation of the battery 8.

[0026] The above-described embodiments only express the preferred embodiments of the utility model, and the description is more specific and detailed, but the utility model is not limited to these embodiments, and it should be pointed out that for ordinary skilled persons in the art. Any improvement made without departing from the purpose of the utility model falls within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A fixing device for cell thermal runaway detection, characterized in that, The utility model relates to a fixing base (1), first fixed plate (2), second fixed plate (3), moving plate (4), slide rod (5), rotating screw rod (6), positioner (7), the fixed base (1) top from one side to the other side is equipped with first fixed plate (2) and second fixed plate (3) in proper order, moving plate (4) is located between first fixed plate (2) and second fixed plate (3) and with first fixed plate (2) and second fixed plate (3) parallel arrangement, first fixed plate (2) and second fixed plate (3) are connected with the slide rod (5) of through moving plate (4), rotating screw rod (6) is set through second fixed plate (3), and rotating screw rod (6) is screwed with the threaded cap (31) fixed on second fixed plate (3), one end of rotating screw rod (6) can be rotatably connected in sleeve (42), the other end of rotating screw rod (6) is provided with internal hexagonal port (61), sleeve (42) is fixed on one side of moving plate (4), the rotating screw rod (6) between threaded cap (31) and internal hexagonal port (61) is screwed with the positioner (7) for locking the rotation of rotating screw rod (6), the positioner (7) includes the fixed head (71) of setting on rotating screw rod (6) and the handle (72) connected with fixed head (71), fixed head (71) is annular structure and is equipped with the internal thread of the outer wall adaptation with rotating screw rod (6) on inner wall.

2. The device of claim 1, wherein, The side of first fixed plate (2) close to moving plate (4) is equipped with first clamping plate (21), and the other side of moving plate (4) is equipped with second clamping plate (41).

3. The device of claim 1, wherein the device is configured to be attached to a battery cell. The number of slide rod (5) is four and is through four corners of moving plate (4) respectively, and moving plate (4) is slidably connected with slide rod (5).

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