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CN-224204138-U - Battery cover plate structure and single battery

CN224204138UCN 224204138 UCN224204138 UCN 224204138UCN-224204138-U

Abstract

The utility model belongs to the technical field of power batteries, and discloses a battery cover plate structure and a single battery. The battery cover plate structure comprises a cover plate body, a first insulating part, an intelligent detection module and two polar posts, wherein the first insulating part is arranged on one side of the cover plate body, the two polar posts are arranged at intervals, each polar post penetrates through the first insulating part and the cover plate body and is in insulating sealing connection with the cover plate body, one of the two polar posts is an anode post, the other one is a cathode post, the intelligent detection module is arranged on one side of the cover plate body facing the first insulating part in an insulating way, the intelligent detection module is used for detecting the pressure and/or the temperature in a single battery, the two electrodes of the intelligent detection module are electrically connected to the two polar posts in a one-to-one correspondence mode, the internal pressure and the temperature of the battery can be monitored in real time, and the battery cover plate structure can be powered by the detection module through the charge and discharge of the single battery, so that the battery cover plate structure is self-powered, and the battery cover plate structure is high in integration degree and does not occupy the space inside the single battery.

Inventors

  • LI JIANJU
  • QIU YISHENG
  • HU XIANG

Assignees

  • 深圳市科达利实业股份有限公司

Dates

Publication Date
20260505
Application Date
20250403

Claims (10)

  1. 1. The battery cover plate structure is characterized by comprising a cover plate body (10), a first insulating piece (20), an intelligent detection module (40) and two polar posts (30), The first insulating piece (20) is arranged on one side of the cover plate body (10), the two polar posts (30) are arranged at intervals, and each polar post (30) penetrates through the first insulating piece (20) and the cover plate body (10) and is in insulating sealing connection with the cover plate body (10); The intelligent detection module (40) is arranged on one side, facing the first insulating piece (20), of the cover plate body (10) in an insulating mode, the intelligent detection module (40) is used for detecting pressure and/or temperature in a single battery, and two electrodes of the intelligent detection module (40) are electrically connected to two pole posts (30) in a one-to-one correspondence mode.
  2. 2. The battery cover structure according to claim 1, wherein the intelligent detection module (40) includes: The intelligent detection body (41) can be electrically connected with an external control system and is used for detecting and transmitting pressure signals and/or temperature signals in the single battery; Two electrode connecting wires (42), one end all electrically connect in intellectual detection system body (41), the other end all is equipped with the electrode to respectively electrically connect in two utmost point post (30).
  3. 3. The battery cover structure according to claim 2, wherein the smart detection body (41) includes a pressure detection member for detecting and transmitting a pressure signal in the unit battery, and/or, The intelligent detection body (41) comprises a temperature detection piece, and the temperature detection piece is used for detecting and transmitting temperature signals in the single battery.
  4. 4. The battery cover plate structure according to claim 2, wherein the cover plate body (10) is provided with two pole holes (101), the poles (30) are in one-to-one insulation sealing penetrating through the pole holes (101), one side of the cover plate body (10) facing the first insulating piece (20) is provided with a mounting groove (102), the intelligent detection module (40) is arranged in the mounting groove (102), and the mounting groove (102) is communicated with the pole holes (101).
  5. 5. The battery cover structure according to claim 4, wherein the mounting groove (102) includes: A first groove body (1021), wherein the intelligent detection body (41) is arranged in the first groove body (1021); Two second cell bodies (1022), one end all communicate in first cell body (1021), the other end communicate respectively in two utmost point post hole (101), two electrode connecting wire (42) one-to-one set up in two in second cell body (1022).
  6. 6. The battery cover plate structure according to claim 1, further comprising a sealing member (50), wherein the sealing member (50) is sleeved on the periphery of the pole (30) so as to insulate and seal the pole (30) from the cover plate body (10).
  7. 7. The battery cover plate structure according to claim 1, further comprising a second insulating member (60), wherein the second insulating member (60) is sandwiched between the pole (30) and the cover plate body (10) on a side facing away from the first insulating member (20).
  8. 8. The battery cover structure according to any one of claims 1 to 7, wherein an insulating film is provided on a side of the cover body (10) facing the first insulating member (20), and the insulating film covers at least a contact area of the cover body (10) and the intelligent detection module (40).
  9. 9. The battery cover structure according to claim 8, wherein the insulating film is integrally formed with the cover body (10) by film-coated aluminum material, or the cover body (10) is formed by punching, and the insulating film is sprayed on the cover body (10).
  10. 10. A single cell comprising a battery cover structure according to any one of claims 1-9.

Description

Battery cover plate structure and single battery Technical Field The utility model relates to the technical field of power batteries, in particular to a battery cover plate structure and a single battery. Background In the technical field of power batteries, the internal pressure and the temperature of the battery are overhigh due to the fact that a battery core in the battery is likely to be out of control, and after the internal pressure reaches the starting value of an explosion-proof valve, the explosion-proof valve is opened, so that gas in the battery is discharged, the pressure of the battery is reduced, and the explosion of the battery is prevented. But this is a protective measure that is only done when thermal runaway of the cells has occurred. If the internal pressure and the temperature of the battery can be detected earlier to realize the safety control of the battery as early as possible, the safety and the service life of the battery can be greatly improved. Therefore, a battery cover structure and a single battery are needed to solve the above technical problems. Disclosure of utility model The utility model aims to provide a battery cover plate structure which can monitor the internal pressure and temperature of a battery in real time, and power a detection module by utilizing the charge and discharge of a single battery, so that the battery cover plate structure is self-powered, has high integration level and does not occupy the space in the single battery. To achieve the purpose, the utility model adopts the following technical scheme: the battery cover plate structure comprises a cover plate body, a first insulating piece, an intelligent detection module and two polar posts, The first insulating piece is arranged on one side of the cover plate body, the two polar posts are arranged at intervals, and each polar post penetrates through the first insulating piece and the cover plate body and is in insulating sealing connection with the cover plate body; The intelligent detection module is arranged on one side of the cover plate body, which faces the first insulating piece, in an insulating way, and is used for detecting the pressure and/or the temperature in the single battery, and two electrodes of the intelligent detection module are electrically connected to the two polar posts in a one-to-one correspondence way. Optionally, the intelligent detection module includes: The intelligent detection body can be electrically connected with an external control system and is used for detecting and transmitting pressure signals and/or temperature signals in the single battery; Two electrode connecting wires, one end is all electrically connected in above-mentioned intellectual detection system body, and the other end all is equipped with above-mentioned electrode to electrically connect in two above-mentioned utmost point posts respectively. Optionally, the intelligent detection body comprises a pressure detection part, wherein the pressure detection part is used for detecting and transmitting pressure signals in the single battery, and/or, The intelligent detection body comprises a temperature detection piece, and the temperature detection piece is used for detecting and transmitting temperature signals in the single battery. Optionally, the cover plate body is provided with two pole holes, the pole holes are penetrated in a one-to-one corresponding insulating sealing manner, one side of the cover plate body, which faces the first insulating piece, is provided with a mounting groove, the intelligent detection module is arranged in the mounting groove, and the mounting groove is communicated with the pole holes. Optionally, the mounting groove includes: The intelligent detection body is arranged in the first groove body; And one ends of the two second groove bodies are communicated with the first groove body, the other ends of the two second groove bodies are respectively communicated with the two pole column holes, and the two electrode connecting wires are arranged in the two second groove bodies in a one-to-one correspondence manner. Optionally, the device further comprises a sealing member, wherein the sealing member is sleeved on the periphery of the pole, so that the pole and the cover plate body are in insulating and sealing arrangement. Optionally, the device further includes a second insulating member, where the second insulating member is clamped between the pole and the cover body and is away from the first insulating member. Optionally, an insulating film is disposed on a side of the cover body facing the first insulating member, and the insulating film at least covers a contact area between the cover body and the intelligent detection module. Optionally, the insulating film and the cover plate body are integrally formed by stamping through a film-coated aluminum material, or the cover plate body is formed by stamping, and the insulating film is sprayed on the cover plate body. The util