CN-224216853-U - Internal resistance detection device

CN224216853UCN 224216853 UCN224216853 UCN 224216853UCN-224216853-U

Abstract

The utility model provides an internal resistance detection device which comprises a feeding end, a discharging end, a rotary table and an internal resistance detection component, wherein a plurality of first cell jigs are arranged on the periphery of the rotary table, the rotary table is used for transferring the first cell jigs between the feeding end and the discharging end, the first cell jigs are used for clamping cells, the internal resistance detection component is connected with the rotary table and can synchronously rotate along with the rotary table, the internal resistance detection component and the first cell jigs are arranged in one-to-one correspondence, the internal resistance detection component comprises at least one probe component, the probe component is arranged at the end part of the first cell jigs along the vertical direction, and the probe component can be in contact with the extreme end of the cells so as to detect the internal resistance of the cells. The utility model solves the problems of low internal resistance detection efficiency and high detection cost of the existing internal resistance detection device.

Inventors

CAO HAIXIA
LIANG YONGFENG
LI XIANG

Assignees

珠海华冠科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250416

Claims (10)

1. An internal resistance detection apparatus, characterized by comprising: A feed end and a discharge end; The rotary table is circumferentially provided with a plurality of first battery cell jigs, the rotary table is used for transferring the first battery cell jigs between the feeding end and the discharging end, and the first battery cell jigs are used for clamping battery cells; The internal resistance detection assembly comprises at least one probe assembly, the probe assembly is arranged at the end part of the first battery cell jig along the vertical direction, and the probe assembly can be in contact with the extreme end of the battery cell so as to detect the internal resistance of the battery cell.
2. The internal resistance detection device according to claim 1, wherein the internal resistance detection assembly comprises two probe assemblies, the two probe assemblies are respectively arranged at two ends of the first cell jig in the vertical direction, one of the probe assemblies can be in contact with a first extreme of the cell, the other probe assembly can be in contact with a second extreme of the cell, and polarities of the first extreme and the second extreme are opposite.
3. The internal resistance detection apparatus according to claim 2, further comprising a rotating shaft and two detection turntables, wherein the rotating shaft connects the two detection turntables and the two detection turntables, the two detection turntables are respectively provided at both ends of the turntables in a vertical direction, and the two probe assemblies in each internal resistance detection assembly are respectively provided on the two detection turntables.
4. The internal resistance detection device according to claim 1, further comprising two transfer turntables, wherein at least one second cell jig is arranged on each transfer turntable, one transfer turntable is arranged between the feeding end and the turntables and used for transferring cells at the feeding end to the turntables, and the other transfer turntable is arranged between the discharging end and the turntables and used for transferring cells on the turntables to the discharging end.
5. The internal resistance detection device according to claim 4, further comprising a fixing plate, wherein the feeding end and the discharging end are both arranged on the fixing plate, a through hole for the transfer turntable to pass through is formed in the fixing plate, a first flange and a second flange are arranged on the fixing plate, the first flange is arranged on the periphery of the turntable, the second flange is arranged on the periphery of the transfer turntable, the first flange extends towards the second flange, and the battery core clamped by the first battery core jig or the second battery core jig can be located between the first flange and the second flange.
6. The internal resistance detection device according to claim 5, wherein the first flange and the second flange are both arc-shaped flanges, the first battery cell jig can pass through the second flange, and an avoidance gap is formed in the first flange, so that the second battery cell jig can pass through the first flange.
7. The internal resistance detection device according to claim 1, wherein the probe assembly comprises a supporting frame and a probe mounting seat arranged on the supporting frame, a probe is arranged on the probe mounting seat, the probe comprises a first probe and a second probe which are coaxially arranged, the second probe is sleeved outside the first probe, the first probe can move along a vertical direction relative to the second probe, and an insulating piece is arranged between the first probe and the second probe.
8. The internal resistance detection device according to claim 7, wherein a first elastic member is sleeved on the first probe, one end of the first elastic member is abutted against the first probe, the other end of the first elastic member is abutted against the insulating member, a second elastic member is sleeved on the second probe, one end of the second elastic member is abutted against the second probe, and the other end of the second elastic member is abutted against the probe mounting seat.
9. The internal resistance detection device according to claim 7, wherein the probe assembly further comprises a second connection block connected with the probe mounting seat, the support frame comprises a first connection block and guide rods, the two guide rods are respectively connected to two ends of the first connection block, the guide rods extend towards the first cell jig along the vertical direction, two ends of the second connection block are respectively connected with the two guide rods, the second connection block is located between the first connection block and the probe mounting seat, one end of the guide rod, which is away from the first connection block, is sleeved with a linear bearing, and a third elastic piece is arranged between the linear bearing and the second connection block.
10. The internal resistance detection apparatus according to claim 9, further comprising at least one cam coaxially provided with the turntable, the first connecting block being provided with a cam follower, the cam being provided with a groove that guides the cam follower to reciprocate in a vertical direction, the cam follower being provided in the groove.

Description

Internal resistance detection device Technical Field The utility model relates to the technical field of battery detection, in particular to an internal resistance detection device. Background In order to avoid the defective products from flowing into the subsequent processes and causing great potential safety hazards, the internal resistance detection of the battery is an essential ring in the battery production process. The internal resistance detection of the existing battery generally uses a single internal resistance detection device or a large number of mechanisms to detect the internal resistance of the battery core, and the battery core needs to be in a static state in the process of detecting the internal resistance of the battery core, so that the internal resistance detection efficiency of the battery core is reduced, and the detection cost is increased. Disclosure of utility model The utility model aims to solve the problems of low internal resistance detection efficiency and high detection cost of the existing internal resistance detection device. In order to solve the above-mentioned problems, the present utility model provides an internal resistance detection apparatus comprising: A feed end and a discharge end; The rotary table is circumferentially provided with a plurality of first battery cell jigs, the rotary table is used for transferring the first battery cell jigs between the feeding end and the discharging end, and the first battery cell jigs are used for clamping battery cells; The internal resistance detection assembly comprises at least one probe assembly, the probe assembly is arranged at the end part of the first battery cell jig along the vertical direction, and the probe assembly can be in contact with the extreme end of the battery cell so as to detect the internal resistance of the battery cell. Further, the internal resistance detection assembly comprises two probe assemblies, the two probe assemblies are respectively arranged at two ends of the first battery cell jig along the vertical direction, one probe assembly can be in contact with a first extreme of the battery cell, the other probe assembly can be in contact with a second extreme of the battery cell, and the polarities of the first extreme and the second extreme are opposite. Further, the internal resistance detection device further comprises a rotating shaft and two detection turntables, the rotating shaft is connected with the two detection turntables and the two detection turntables are respectively arranged at two ends of the turntables along the vertical direction, and two probe assemblies in each internal resistance detection assembly are respectively arranged on the two detection turntables. Further, the internal resistance detection device further comprises two transfer turntables, wherein at least one second battery cell jig is arranged on each transfer turntable, one transfer turntable is arranged between the feeding end and each turntable and used for transferring battery cells at the feeding end to the turntables, and the other transfer turntable is arranged between the discharging end and each turntable and used for transferring battery cells on the turntables to the discharging end. Further, the internal resistance detection device further comprises a fixed plate, the feeding end and the discharging end are both arranged on the fixed plate, a through hole for the transfer turntable to pass through is formed in the fixed plate, a first flange and a second flange are arranged on the fixed plate, the first flange is arranged on the periphery of the turntable, the second flange is arranged on the periphery of the transfer turntable, and the first flange extends towards the second flange, so that the first battery cell jig or the battery cell clamped by the second battery cell jig can be positioned between the first flange and the second flange. Further, the first flange and the second flange are arc flanges, the first battery cell jig can pass through the second flange, and an avoidance gap is formed in the first flange, so that the second battery cell jig can pass through the first flange. Further, the probe assembly comprises a supporting frame and a probe mounting seat arranged on the supporting frame, a probe is arranged on the probe mounting seat, the probe comprises a first probe and a second probe which are coaxially arranged, the second probe is sleeved outside the first probe, the first probe can move along the vertical direction relative to the second probe, and an insulating piece is arranged between the first probe and the second probe. Further, a first elastic piece is sleeved on the first probe, one end of the first elastic piece is abutted to the first probe, the other end of the first elastic piece is abutted to the insulating piece, a second elastic piece is sleeved on the second probe, one end of the second elastic piece is abutted to the second probe, and the other end of the second elas