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CN-224222218-U - Polymer soft package electricity core welding hot pressing survey dust removal mechanism for short circuit station

CN224222218UCN 224222218 UCN224222218 UCN 224222218UCN-224222218-U

Abstract

The utility model discloses a dust removing mechanism for a thermal compression testing short circuit station of welding a polymer soft package battery cell, which comprises a mounting substrate, a hot pressing plate assembly, a lug supporting plate and a negative pressure mechanism, wherein the hot pressing plate assembly is arranged on the upper surface of the mounting substrate, the upper surface of the hot pressing plate assembly is implemented as a supporting surface for placing the battery cell to be thermally pressed, the lug supporting plate is arranged on the side edge of the side of the lug of the battery cell to be thermally pressed, which is placed on the corresponding supporting surface of the mounting substrate and the hot pressing plate assembly, the negative pressure mechanism is arranged on the side edge of the hot pressing plate assembly, which is opposite to the lug supporting plate, and the negative pressure mechanism is provided with a dust collection opening positioned above the supporting surface, and the dust collection opening is opposite to the tail of the battery cell to be thermally pressed, which is placed on the supporting surface. The dust is reduced and adheres to the hot pressing plate assembly and is adhered to the surface of a subsequent electric core, so that the pollution to the battery is caused, and the potential safety hazard and the problem of poor k value of the electric core caused by the dust are reduced. Simple structure, need not manual dust absorption and handles, the practicality is strong.

Inventors

  • Li Qianhuan
  • YUAN HAIYONG
  • LI YAN

Assignees

  • 泰鼎新能源(浙江)有限公司

Dates

Publication Date
20260512
Application Date
20250519

Claims (10)

  1. 1. The utility model provides a dust removal mechanism for polymer soft packet of electric core welding hot-pressing survey short circuit station, its characterized in that includes mounting substrate, hot pressing board subassembly, utmost point ear layer board and negative pressure mechanism, the hot pressing board subassembly is located the upper surface of mounting substrate just the upper surface of hot pressing board subassembly is implemented for the holding surface that the electric core that waits to be hot pressed was placed, utmost point ear layer board is located mounting substrate with the side of the electric core that waits to be hot pressed that places on the holding surface corresponds of hot pressing board subassembly, negative pressure mechanism locates on the hot pressing board subassembly with mounting substrate with on the side that the utmost point ear layer board is relative just negative pressure mechanism has and is located the dust absorption mouth of holding surface top, the dust absorption mouth is just to wait the afterbody of hot pressing electric core of waiting to be hot pressing that places on the holding surface.
  2. 2. The dust removing mechanism according to claim 1, wherein the negative pressure mechanism has two first side surfaces arranged opposite each other in a vertically-opposed and parallel manner at a spacing, two second side surfaces arranged opposite each other in a longitudinally-opposed and parallel manner at a spacing, and two third side surfaces arranged opposite each other in a laterally-opposed and parallel manner at a spacing; Wherein the width direction of the first side surface of the upper end extends out of the width direction of the first side surface of the lower end to form a first extension surface; the upper end of the second side surface of the front end is bent forwards to form a second extension surface, and the second extension surface and the first extension surface are opposite up and down and are arranged at intervals; The upper end parts of the front side edges of the two third side surfaces are bent forwards, the upper side edges of the two third side surfaces are protruded forwards and extend, the two third side surfaces are connected through a vertical edge to form third extension surfaces respectively, an air inlet is formed in one of the third side surfaces, and the air inlet is connected with an air inlet pipe; The first extension surface, the second extension surface and the two third extension surfaces jointly enclose to define an air suction channel, and the outer end surface of the air suction channel is provided with an opening and is implemented as the dust collection opening.
  3. 3. The dust removing mechanism according to claim 2, wherein a first connecting plate is fixed to the other third side surface, at least one first connecting hole is formed in the first connecting plate, and the first connecting Kong Bikai corresponds to a space defined by the third side surface and the third extension surface and the second side surface and the second extension surface of the front end; At least one second connecting hole is formed in the side surface of the same side of the mounting substrate as the first connecting plate; The negative pressure mechanism is fixedly connected with the mounting substrate through a second connecting plate, the second connecting plate is an L-shaped plate, the negative pressure mechanism is suspended above the mounting substrate and on the side edge of the hot pressing plate assembly through an L-shaped second connecting hole, and a third connecting hole and a fourth connecting hole corresponding to the first connecting hole and the second connecting hole are respectively formed in the second connecting plate.
  4. 4. A dust removing mechanism according to claim 3, wherein the third connecting hole is a long hole extending in a horizontal direction, and the fourth connecting hole is a long hole extending in a vertical direction.
  5. 5. A dust removal mechanism as claimed in claim 2 or claim 3, wherein the length of the dust extraction opening is not less than the width of the support surface on the platen assembly.
  6. 6. The dust removing mechanism according to claim 1, wherein a rail connecting plate is fixedly connected to the bottom of the mounting base plate, and the rail connecting plate is slidably connected to the rail through a slider to reciprocally switch between the testing station and the material taking station.
  7. 7. The dust removing mechanism as set forth in claim 6, wherein the mounting base plate is provided with a plurality of fifth connecting holes penetrating through the thickness direction thereof, and the guide rail connecting holes are provided with sixth connecting holes in one-to-one correspondence with the plurality of fifth connecting holes.
  8. 8. The dust removing mechanism of claim 7, wherein at least one seventh connecting hole is formed in the tab support plate, and an eighth connecting hole corresponding to the seventh connecting hole is formed in the rail connecting plate.
  9. 9. The dust removing mechanism according to claim 8, wherein the seventh connecting hole is a vertically extending long hole.
  10. 10. The dust removing mechanism as set forth in claim 1, wherein the tab holding plate comprises a vertically extending plate body and a support block integrally formed at an upper end of the plate body in a horizontal direction, an upper surface of the support block being implemented as a support surface for the tab support, the support surface being higher than the support surface, and/or The hot pressing plate assembly comprises a heating plate and a heat insulating plate which are arranged in a stacked mode from top to bottom.

Description

Polymer soft package electricity core welding hot pressing survey dust removal mechanism for short circuit station Technical Field The utility model relates to the technical field of new energy, in particular to a dust removing mechanism for a polymer soft package battery cell welding hot-pressing short circuit testing station. Background The lithium ion battery has the advantages of high specific energy, multiple recycling times, long storage time and the like, and the lithium ion soft package battery is increasingly applied to the field of portable mobile equipment due to the advantages of large capacity, good safety performance, small size, flexible size design and the like. The polymer soft package battery is a battery using an aluminum plastic packaging film as a packaging material and mainly comprises an electric core, a positive electrode tab and a negative electrode tab which are respectively and electrically connected with the electric core, and an aluminum plastic film (the aluminum plastic film is a composite layer with a three-layer structure, and is formed by ON/AL/CPP (outer nylon layer/middle aluminum foil layer/inner heat sealing layer)) for packaging the electric core. In order to ensure the quality of the polymer soft-package battery core, whether the battery core is short-circuited or not is detected in the subsequent process of winding the battery core, namely, a hot-pressing short-circuit test is needed, in the hot-pressing process, materials to be fallen off during the winding of the battery core and materials to be fallen off under the extrusion action of a hot-pressing plate fall off from the tail part of the battery core in a powder form and are attached to the hot-pressing plate, and the powder materials can be adsorbed and adhered to the surface of the battery core, so that the poor k value of the battery core can be caused. In addition, as the number of hot pressing times and time are increased, the powdery materials can be gradually accumulated and become hard blocks under the extrusion action of the hot pressing plate, so that the surface of the battery cell is possibly damaged, the battery cell is scrapped, and even potential safety hazards such as explosion of the battery cell are caused. The powder produced in the hot pressing station is usually cleaned manually in the prior art, such as by a brush roller or a dust-sticking roller, or by an external dust-absorbing device such as a dust collector, etc., but this approach is laborious and inefficient. The present utility model therefore results from this. Disclosure of utility model Aiming at least one of the technical problems, the utility model aims to provide a dust removing mechanism for a hot-press short-circuit testing station for welding a polymer soft package battery core, wherein a negative pressure mechanism is arranged at the tail part of a battery core to be hot-pressed which is placed on a supporting surface of a hot-press plate, and powder falling off from the tail part during the hot-press short-circuit testing of the battery core to be hot-pressed is sucked through a dust suction port of the negative pressure mechanism, so that the dust is prevented from adhering to the surface of the battery core due to adhesion of the dust on the hot-press plate, and the problems of potential safety hazards and poor k value of a battery caused by the dust are solved. The technical scheme of the utility model is as follows: The utility model aims to provide a dust removing mechanism for a polymer soft package battery cell welding hot-pressing short-circuit station, which comprises a mounting substrate, a hot-pressing plate assembly, a tab support plate and a negative pressure mechanism, wherein the hot-pressing plate assembly is arranged on the upper surface of the mounting substrate, the upper surface of the hot-pressing plate assembly is implemented as a supporting surface for placing a battery cell to be hot-pressed, the tab support plate is arranged on the side of the mounting substrate and the hot-pressing plate assembly, which corresponds to the side of the tab of the battery cell to be hot-pressed placed on the supporting surface, the negative pressure mechanism is arranged on the side of the hot-pressing plate assembly, which is opposite to the tab support plate, and the negative pressure mechanism is provided with a dust collection opening positioned above the supporting surface, and the dust collection opening is opposite to the tail of the battery cell to be hot-pressed placed on the supporting surface. Preferably, the negative pressure mechanism is provided with two first side surfaces which are opposite to each other from top to bottom and are arranged in parallel at intervals, two second side surfaces which are opposite to each other from front to back and are arranged in parallel at intervals, and two third side surfaces which are opposite to each other from left to right and are arranged in parallel at interval