CN-224231113-U - Temperature testing device

CN224231113UCN 224231113 UCN224231113 UCN 224231113UCN-224231113-U

Abstract

The application relates to the technical field of lithium battery testing, in particular to a temperature testing device. The temperature testing device comprises a jig, a driving mechanism and a temperature detecting piece, wherein the jig is used for fixing a battery, the temperature detecting piece is arranged at the driving end of the driving mechanism, and the driving mechanism is used for driving the temperature detecting piece to be close to the battery on the jig along a first direction so as to abut against the battery to monitor the temperature of the battery. Meanwhile, the mounting position of the temperature detection part on the driving mechanism is adjustable, so that the mounting position of the temperature detection part can be adjusted according to the position of a preset test point on the battery, the temperature detection part is opposite to the preset test point of the battery, the temperature detection part can be accurately positioned at the preset test point of the battery to monitor the temperature of the battery, and compared with a mode of manually dispensing and fixing the temperature detection part, the temperature detection part can effectively improve the test efficiency, ensure the contact stability of the temperature detection part and the battery, and avoid damage to the battery due to misplacement of glue.

Inventors

ZHOU YUHAO
CHEN HONGKAI
GAO TAO
YE CHANGQING

Assignees

浙江欣旺达电子有限公司

Dates

Publication Date: 20260512
Application Date: 20250512

Claims (10)

1. The temperature testing device is characterized by comprising a jig, a driving mechanism and a temperature detecting piece; The jig is used for fixing the battery on one side of the first direction of the temperature detection piece, the temperature detection piece is arranged on the driving end of the driving mechanism in a position-adjustable mode, and the temperature detection piece can move towards the jig along the first direction under the driving of the driving mechanism, so that the temperature detection piece abuts against a preset test point of the battery.
2. The temperature testing device according to claim 1, wherein the jig comprises a base, and a first abutting portion, a second abutting portion and a first sliding block are arranged on the base; The battery can be placed on the base, one end of the battery in the length direction abuts against the first abutting part, and one side of the battery in the width direction abuts against the second abutting part; The first sliding block is located at one side of the battery, which is far away from the second abutting part, and the first sliding block can slide along the width direction of the battery, so that the battery can be clamped between the first sliding block and the second abutting part in a limiting manner.
3. The temperature testing device of claim 2, wherein the fixture further comprises a second slider and a first fastener; The base is provided with a slideway hole penetrating through the base, and the length direction of the slideway hole extends along the width direction of the battery; The second sliding block is arranged on one side, away from the first sliding block, of the base, the first sliding block is connected with the second sliding block through the first fastening piece penetrating through the slideway hole, and the first sliding block is clamped with or loosened from the base.
4. A temperature testing device according to claim 3, wherein a guiding chute is provided on a side of the base facing the second slider, a length direction of the guiding chute extends along a length direction of the chute hole, the chute hole penetrates through a bottom wall of the guiding chute, and the second slider is slidably disposed in the guiding chute along the length direction of the guiding chute.
5. The temperature testing device according to claim 1, wherein the temperature testing device comprises a first bracket, the driving mechanism comprises a support, a handle, a transmission piece and a connecting piece, the support is fixed on the first bracket, a first pivot and a second pivot are arranged at one end of the handle at intervals, the handle is pivoted with the support through the first pivot, and the handle is pivoted with one end of the transmission piece through the second pivot; The connecting piece is movably arranged on the support along the first direction, one end of the connecting piece is pivoted with one end of the transmission piece away from the second pivot, the other end of the connecting piece is provided with a second support, and the temperature detection piece is arranged on the second support.
6. The temperature testing device of claim 5, wherein a rail is provided on the first bracket, the rail being disposed along the first direction, the first bracket being slidably disposed on the rail.
7. The temperature testing device according to claim 6, wherein a plurality of locking holes are formed in the guide rail at intervals along the length direction of the guide rail, and a limiting pin is inserted into the locking holes.
8. The temperature testing device according to claim 5, wherein a plurality of first connection holes are provided on the second bracket at intervals; The temperature detection piece is provided with a connecting rod, one end, far away from the temperature detection piece, of the connecting rod is provided with a second connecting hole, and the second connecting hole can be opposite to any one of the first connecting holes so as to penetrate through the connecting rod and the second bracket to form a second fastening piece.
9. The temperature testing device of claim 1, wherein the temperature sensing element comprises a spring spike and a thermocouple; The spring thimble comprises a fixed section and a telescopic section, the fixed section is connected with the driving end of the driving mechanism, and the telescopic section is connected to one end of the fixed section, which faces the battery, in an elastic sliding fit manner; The fixed section and the telescopic section are hollow, so that the thermocouple is arranged in a penetrating manner, the thermocouple is connected with the telescopic section, and the temperature measuring end of the thermocouple extends out from a section of the telescopic section far away from the fixed section.
10. The temperature testing device of claim 9, wherein the spring pins are polytetrafluoroethylene spring pins, polypropylene spring pins, or alumina ceramic spring pins.

Description

Temperature testing device Technical Field The application relates to the technical field of lithium battery testing, in particular to a temperature testing device. Background In the related work of lithium battery performance research, safety evaluation and the like, temperature test, such as temperature distribution test, of the lithium battery is usually required, when in test, thermocouples are required to be arranged at each test point of the lithium battery, and a thermocouple fixing method commonly adopted in the industry at present is a dispensing method, namely, the thermocouples are adhered at the test points of the lithium battery by using glue. This approach has a number of drawbacks. For example, manual bonding of the thermocouple is time-consuming and labor-consuming, has low efficiency, and the thermocouple is easy to fall off due to weak bonding, so that abnormal test data is caused, and for the test points positioned on the battery protection plate, the glue cannot be removed after being misplaced, so that the components on the protection plate are easy to damage. Therefore, there is a need to develop a new non-destructive, repeatable positioning, highly reliable temperature distribution measurement solution. Disclosure of utility model The utility model aims to provide a temperature testing device which solves the technical problems of low testing efficiency, poor testing stability and easiness in damaging battery components in the prior art to a certain extent. The utility model provides a temperature testing device, which comprises a jig, a driving mechanism and a temperature detecting piece; The jig is used for fixing the battery on one side of the first direction of the temperature detection piece, the temperature detection piece is arranged on the driving end of the driving mechanism in a position-adjustable mode, and the temperature detection piece can move towards the jig along the first direction under the driving of the driving mechanism, so that the temperature detection piece abuts against a preset test point of the battery. Further, the jig comprises a base, wherein a first abutting part, a second abutting part and a first sliding block are arranged on the base; The battery can be placed on the base, one end of the battery in the length direction abuts against the first abutting part, and one side of the battery in the width direction abuts against the second abutting part; The first sliding block is located at one side of the battery, which is far away from the second abutting part, and the first sliding block can slide along the width direction of the battery, so that the battery can be clamped between the first sliding block and the second abutting part in a limiting manner. Further, the jig further comprises a second slider and a first fastener; The base is provided with a slideway hole penetrating through the base, and the length direction of the slideway hole extends along the width direction of the battery; The second sliding block is arranged on one side, away from the first sliding block, of the base, the first sliding block is connected with the second sliding block through the first fastening piece penetrating through the slideway hole, and the first sliding block is clamped with or loosened from the base. Further, a guiding chute is arranged on one side of the base, facing the second sliding block, of the second sliding block, the length direction of the guiding chute extends along the length direction of the slideway hole, the slideway hole penetrates through the bottom wall of the guiding chute, and the second sliding block is slidably arranged in the guiding chute along the length direction of the guiding chute. Further, the temperature testing device comprises a first bracket, the driving mechanism comprises a support, a handle, a transmission piece and a connecting piece, the support is fixed on the first bracket, a first pivot and a second pivot are arranged at one end of the handle at intervals, the handle is pivoted with the support through the first pivot, and the handle is pivoted with one end of the transmission piece through the second pivot; The connecting piece is movably arranged on the support along the first direction, one end of the connecting piece is pivoted with one end of the transmission piece away from the second pivot, the other end of the connecting piece is provided with a second support, and the temperature detection piece is arranged on the second support. Further, a guide rail is arranged on the first support, the guide rail is arranged along the first direction, and the first support is arranged on the guide rail in a sliding manner. Further, a plurality of locking holes are formed in the guide rail at intervals along the length direction of the guide rail, and limiting pins are inserted into the locking holes. Further, a plurality of first connecting holes are formed in the second bracket at intervals; The temperature detection piece