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CN-121990359-A - Clamp, multi-cell clamp and detection device

CN121990359ACN 121990359 ACN121990359 ACN 121990359ACN-121990359-A

Abstract

The application provides a clamp which comprises a substrate, a first limiting piece and a second limiting piece, wherein the substrate comprises a first region and a second region which are rotationally symmetrical, the first region comprises a first bearing part and a first positioning part, the second region comprises a second bearing part and a second positioning part, the first bearing part and the second bearing part are rotationally symmetrical, the first positioning part and the second positioning part are rotationally symmetrical, the first limiting piece is arranged on the first bearing part, the second limiting piece is arranged on the second bearing part, the first limiting piece and the second limiting piece are used for limiting opposite angles of a battery cell arranged on the substrate, the first positioning part comprises a first bulge extending towards a first direction, the second positioning part comprises a second bulge extending towards a second direction, and the first direction is opposite to the second direction. The application also provides a multi-cell clamp and a detection device.

Inventors

  • HONG MINGZHI
  • ZHANG LI
  • CHEN ZHIQIANG
  • LI YUANJING
  • LI LIANG
  • CHANG MING

Assignees

  • 同方威视技术股份有限公司
  • 清华大学

Dates

Publication Date
20260508
Application Date
20260401

Claims (12)

  1. 1. A clamp, comprising: The substrate comprises a first region and a second region which are rotationally symmetrical, wherein the first region comprises a first bearing part and a first positioning part, the second region comprises a second bearing part and a second positioning part, the first bearing part is rotationally symmetrical with the second bearing part, and the first positioning part is rotationally symmetrical with the second positioning part; the first limiting piece is arranged on the first bearing part; The second limiting piece is arranged on the second bearing part, and the first limiting piece and the second limiting piece are used for limiting the opposite angles of the battery cells arranged on the substrate; Wherein the first positioning portion includes a first protrusion extending in a first direction, and the second positioning portion includes a second protrusion extending in a second direction, the first direction being opposite to the second direction.
  2. 2. The clamp of claim 1, wherein the first carrier comprises: The first corner support part is configured to bear a first corner part of the battery cell which is not limited by the first limiting piece and the second limiting piece; The first corner support portion has a contour shape substantially consistent with that of the first corner portion, and the orthographic projection of the first corner portion is located in the orthographic projection range of the first corner support portion.
  3. 3. The clip of claim 2, wherein the second carrier portion comprises: The second corner support part is configured to bear a second corner part of the battery cell which is not limited by the first limiting piece and the second limiting piece, and the second corner part forms a diagonal angle with the first corner part; Wherein the second corner support has a contour shape substantially consistent with the second corner, and the orthographic projection of the second corner is located within the orthographic projection range of the second corner support.
  4. 4. The jig according to any one of claim 1 to 3, The first limiting piece is used for limiting the first limiting part which is matched with the outline shape of the corner part of the battery cell limited by the first limiting piece.
  5. 5. The fixture of claim 4, wherein the fixture comprises a plurality of clamping plates, The second limiting piece is used for limiting the second limiting part which is matched with the outline shape of the corner part of the battery cell limited by the second limiting piece.
  6. 6. The jig according to any one of claims 1 to 3, 5, The rotation center line between the first area and the second area is positioned at the connecting line of the first area and the second area, and the diagonal line between the diagonal angles of the battery cell which is not limited by the first limiting piece and the second limiting piece is approximately coincident with the connecting line.
  7. 7. The fixture of claim 6, wherein the fixture comprises a plurality of clamping plates, The first protrusions and the second protrusions are respectively provided with preset distances from the connecting lines, do not interfere with the battery cells, and are determined according to the radiation range of the ray source.
  8. 8. A multi-cell fixture, comprising: A plurality of clamp portions for placing a plurality of electrical cells, wherein each clamp portion is profiled according to any one of claims 1-7; wherein, for two adjacent clamp parts, one clamp part is connected with the first bulge or the second bulge of the other clamp part.
  9. 9. A detection apparatus, comprising: a conveyor line configured to convey a plurality of electrical cells placed on a plurality of jigs, the jigs being the jigs according to any one of claims 1 to 7, wherein, for two adjacent jigs, one of the jigs abuts against the first protrusion or the second protrusion of the other jig; And the at least one fault scanning device is respectively positioned at least one interval position of the conveying line, and each fault scanning device is configured to perform radiation imaging on the corner of the electric core positioned at the interval position so as to obtain a radiation image for detecting the electric core, wherein the corner of the electric core positioned at the interval position is in a suspended state.
  10. 10. The detection apparatus according to claim 9, characterized in that the detection apparatus further comprises: The feeding device is configured to put the battery cell to be detected into a corresponding clamp on the conveying line and/or, And the blanking device is configured to take out the battery cells which are subjected to radiation imaging by the fault scanning device from the corresponding clamps on the conveying line.
  11. 11. The apparatus of claim 9, wherein the conveyor line has a positioning structure disposed thereon, the positioning structure configured to position the plurality of clamps within a radiation detection beam radiation range of the tomographic apparatus.
  12. 12. The detection apparatus according to claim 9, wherein the positioning structure includes: The guide piece is arranged on at least one side of the conveying line along the conveying direction of the conveying line; And a plurality of positioning members spaced apart from the guide member, wherein each positioning member is retractable in the conveying direction, and the positioning members are configured to abut against the corresponding jigs in a state where the conveying line conveys the plurality of jigs.

Description

Clamp, multi-cell clamp and detection device Technical Field The application relates to the field of fixtures, the field of battery cell detection, the field of radiation imaging or other technical fields, in particular to a battery cell detection scene, and more particularly relates to a fixture, a multi-battery cell fixture and a detection device. Background As the demand for batteries continues to expand, the market demands increasingly higher on battery quality, for example lithium batteries, and the current demands for consistency of lithium batteries, especially power batteries, are becoming increasingly stringent. The battery cell is an important component of the battery, and before the battery cell is assembled into the battery, the battery cell needs to be detected, for example, the dislocation degree of a pole piece of the battery cell and impurities in the battery cell are detected by adopting X rays, and the positive and negative electrode detection can be carried out on the corner scanning of the battery cell by adopting CT (Computed Tomography ) technology. The battery cell is clamped and placed in the CT beam rotating center for scanning, and the battery cell is taken out for reloading for scanning after scanning, so that the scanning mode has low efficiency and is difficult to meet the requirement of online full detection of the battery cell. Disclosure of Invention In view of the above, the present application provides a fixture, a multi-cell fixture, and a detection device. According to a first aspect of the application, a clamp is provided, which comprises a substrate, a first limiting piece and a second limiting piece, wherein the substrate comprises a first region and a second region which are rotationally symmetrical, the first region comprises a first bearing part and a first positioning part, the second region comprises a second bearing part and a second positioning part, the first bearing part is rotationally symmetrical with the second bearing part, the first positioning part is rotationally symmetrical with the second positioning part, the first limiting piece is mounted on the first bearing part, the second limiting piece is mounted on the second bearing part, the first limiting piece and the second limiting piece are used for limiting the opposite angle of a battery cell arranged on the substrate, the first positioning part comprises a first protrusion extending towards a first direction, the second positioning part comprises a second protrusion extending towards a second direction, and the first direction is opposite to the second direction. According to the embodiment of the application, the first bearing part comprises a first corner support part which is configured to bear the first corner part of the battery cell which is not limited by the first limiting piece and the second limiting piece, wherein the first corner support part is provided with a contour shape which is approximately consistent with the first corner part, and the orthographic projection of the first corner part is positioned in the orthographic projection range of the first corner support part. According to the embodiment of the application, the second bearing part comprises a second corner support part, wherein the second corner support part is configured to bear a second corner part of the battery cell which is not limited by the first limiting piece and the second limiting piece, the second corner part forms a diagonal angle with the first corner part, the second corner support part has a contour shape which is approximately consistent with the second corner part, and the orthographic projection of the second corner part is positioned in the orthographic projection range of the second corner support part. According to an embodiment of the application, the first limiting member defines a first limiting portion which is in agreement with the contour shape of the corner portion of the cell limited by the first limiting member. According to an embodiment of the application, the second limiting member defines a second limiting portion which is in agreement with the contour shape of the corner portion of the cell limited by the second limiting member. According to an embodiment of the application, the rotation center line between the first region and the second region is located at a connecting line of the first region and the second region, and a diagonal line between diagonal angles of the battery cell, which are not limited by the first limiting member and the second limiting member, is substantially coincident with the connecting line. According to the embodiment of the application, the first bulge and the second bulge are respectively provided with a preset distance from the connecting wire, do not interfere with the battery cell, and the preset distance is determined according to the radiation range of the ray source. The second aspect of the application provides a multi-cell fixture comprising a plurali