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CN-224217619-U - Battery core support and battery

CN224217619UCN 224217619 UCN224217619 UCN 224217619UCN-224217619-U

Abstract

The application relates to the field of brackets, in particular to a battery cell bracket and a battery. The battery cell support comprises a mounting frame, wherein the mounting frame is used for accommodating a battery cell assembly, the mounting frame comprises a plurality of side frames, the side frames are arranged around the circumference of the battery cell assembly in a surrounding mode, the side frames are opposite to preset side walls of the battery cell assembly, the preset side walls are parallel to the thickness direction of the battery cell assembly, the battery cell assembly comprises a plurality of battery cells which are stacked, the side frames are provided with a plurality of exhaust holes which are distributed along preset tracks, the preset tracks are of periodic fluctuation waveforms, and the wavelength direction of each waveform is the length direction of the corresponding side frame. According to the application, the plurality of vent holes are arranged on the side frames along the waveform track, so that the upper part, the middle part and the lower part of the side frames are all formed with the heat dissipation channels, the heat dissipation of the whole battery is improved more uniformly on the upper, middle and lower sides of each battery core, the heat dissipation effect of the whole battery is improved, the working temperature of the battery is effectively reduced, the service life of the battery is prolonged, and the safety performance is improved.

Inventors

  • WU JIACHENG
  • PENG WU
  • CHEN YUSHENG

Assignees

  • 浙江欣旺达电子有限公司

Dates

Publication Date
20260508
Application Date
20250516

Claims (10)

  1. 1. The battery cell bracket is characterized by comprising a mounting frame; the mounting frame is used for accommodating the battery cell assembly and comprises a plurality of side frames, wherein the side frames are arranged around the circumference of the battery cell assembly in a surrounding manner to form a cavity for accommodating the battery cell assembly, the side frames are opposite to preset side walls of the battery cell assembly, and the preset side walls are parallel to the thickness direction of the battery cell assembly; The side frames are provided with a plurality of exhaust holes, the exhaust holes are distributed along a preset track, the preset track is a wave form with periodic fluctuation, and the wavelength direction of the wave form is the length direction of the corresponding side frame.
  2. 2. The cell support of claim 1, wherein the predetermined trajectory is a sine wave or a triangular wave.
  3. 3. The cell support of claim 1, wherein the mounting frame further comprises a bracket; An opening is formed in the cavity at the tab leading-out side of the battery cell, and the bracket is positioned at the opening; The bracket comprises a supporting plate and supporting protrusions, wherein the supporting plate is connected with the side frames, the supporting protrusions are connected with the supporting plate and used for supporting a protection plate connected with the lugs of the battery cells, and a gap is formed between the protection plate and the supporting plate.
  4. 4. A cell holder according to claim 3, wherein the mounting frame is provided with two cavities, and the two cavities are respectively located at two sides of the bracket, so that the cells correspondingly accommodated by the two cavities are connected with the protection plate supported by the bracket.
  5. 5. The battery cell support according to claim 3, wherein the mounting frame further comprises a cover plate, wherein the cover plate is buckled on one side of the protection plate away from the bracket; The cover plate is provided with a clamping protrusion, the bracket is provided with a clamping interface, and the clamping protrusion is clamped on the clamping interface.
  6. 6. The cell holder according to claim 5, wherein the bracket is provided with a first support portion opposite to a tab of the cell adjacent to the bracket; the cover plate is provided with a second supporting part, and the second supporting part is opposite to the electrode lug of the battery cell close to the cover plate.
  7. 7. The cell support of claim 1, further comprising an encapsulation housing; The packaging shell comprises a first packaging plate and a second packaging plate, wherein in the stacking direction of a plurality of the battery cells, the first packaging plate covers one end face of the battery cell assembly, and the second packaging plate covers the other end face of the battery cell assembly; One of the first package plate and the second package plate is provided with a side extension that covers the side frame and is connected with the other of the first package plate and the second package plate.
  8. 8. The cell support of claim 7, wherein the first package plate and the second package plate each comprise a package base layer and a heat sink film; The packaging base layer covers the battery cell assembly, and the heat dissipation film is positioned on one side of the packaging base layer, which is away from the battery cell assembly; The heat dissipation film comprises a heat conduction layer and a heat dissipation layer, wherein the heat conduction layer is connected with the packaging base layer, and the heat dissipation layer is positioned on one side, away from the packaging base layer, of the heat conduction layer.
  9. 9. The battery cell support according to claim 8, wherein the heat conducting layer is a graphene heat conducting film, and the heat radiating layer is a nano heat radiating coating.
  10. 10. A battery comprising a cell holder and a cell assembly according to any one of claims 1 to 9.

Description

Battery core support and battery Technical Field The application relates to the field of brackets, in particular to a battery cell bracket and a battery. Background With the improvement of the performance of the battery of the notebook computer, the heat generated by the battery in the charging and discharging processes is increased. Overheating of the battery can accelerate battery aging and shorten battery life. The performance decay speed of the battery working in a high-temperature environment for a long time can be obviously accelerated. The overheat of the battery not only affects the service life of the battery, but also can cause the surface temperature of the notebook computer to rise, thereby affecting the use experience of users. Overheating of the battery can also cause safety hazards, such as battery swelling, leakage and even fire, which pose a threat to user safety. At present, the heat dissipation mode of the battery mainly depends on the heat dissipation of a fan of the notebook computer. While the battery is generally designed in a closed structure to ensure safety and durability. The closed structure limits the heat dissipation, so that the traditional air cooling heat dissipation mode has poor effect. Especially, a plurality of electric cores of battery adopt the overall arrangement mode of stacking from top to bottom, also lead to the battery thickness thicker, and whole battery radiating effect is not good, influences battery life-span and user experience, has potential safety hazard. Disclosure of utility model The application aims to provide a battery core support and a battery, which can improve the heat dissipation effect of a plurality of stacked battery cores, effectively reduce the working temperature of the battery and prolong the service life of the battery. The application provides a battery cell bracket, which comprises a mounting frame; the mounting frame is used for accommodating the battery cell assembly and comprises a plurality of side frames, wherein the side frames are arranged around the circumference of the battery cell assembly in a surrounding manner to form a cavity for accommodating the battery cell assembly, the side frames are opposite to preset side walls of the battery cell assembly, and the preset side walls are parallel to the thickness direction of the battery cell assembly; The side frames are provided with a plurality of exhaust holes, the exhaust holes are distributed along a preset track, the preset track is a wave form with periodic fluctuation, and the wavelength direction of the wave form is the length direction of the corresponding side frame. In the above technical solution, further, the preset track is a sine wave or a triangular wave. In the above technical solution, further, the mounting frame further includes a bracket; The cavity is provided with an opening at the tab leading-out side of the battery cell, and the bracket is positioned at the opening; The bracket comprises a supporting plate and supporting protrusions, wherein the supporting plate is connected with the side frames, the supporting protrusions are connected with the supporting plate and used for supporting a protection plate connected with the lugs of the battery cells, and a gap is formed between the protection plate and the supporting plate. In the above technical solution, further, the mounting frame is provided with two cavities, and the two cavities are respectively located at two sides of the bracket, so that the two corresponding electric cores accommodated in the two cavities are connected with the protection plate supported by the bracket. In the technical scheme, the mounting frame further comprises a cover plate, wherein the cover plate is buckled on one side of the protection plate, which is away from the bracket; The cover plate is provided with a clamping protrusion, the bracket is provided with a clamping interface, and the clamping protrusion is clamped on the clamping interface. In the above technical solution, further, the bracket is provided with a first supporting portion, and the first supporting portion is opposite to the tab of the battery cell close to the bracket; the cover plate is provided with a second supporting part, and the second supporting part is opposite to the electrode lug of the battery cell close to the cover plate. In the above technical solution, further, the packaging device further comprises a packaging shell; The packaging shell comprises a first packaging plate and a second packaging plate, wherein in the stacking direction of a plurality of the battery cells, the first packaging plate covers one end face of the battery cell assembly, and the second packaging plate covers the other end face of the battery cell assembly; One of the first package plate and the second package plate is provided with a side extension that covers the side frame and is connected with the other of the first package plate and the second package plate. In the