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CN-224217579-U - Battery end cover connection structure

CN224217579UCN 224217579 UCN224217579 UCN 224217579UCN-224217579-U

Abstract

The utility model discloses a battery end cover connecting structure, and particularly relates to the technical field of end cover connection, which comprises a first fixing plate and a second fixing plate, wherein the first fixing plate and the second fixing plate are used for connecting end cover main bodies at two ends of a battery shell, one side, close to the battery shell, of the first fixing plate is fixedly provided with a plurality of uniformly distributed connecting plates, one side, close to the battery shell, of the second fixing plate is fixedly provided with a connecting plate second corresponding to the connecting plate first, the connecting plate first and the connecting plate second are detachably fixed together, and annular grooves matched with the end cover main bodies are formed in the two sides, close to the two fixing plates, of the first fixing plate and the two fixing plates. According to the utility model, the first fixing plate and the second fixing plate are connected and fixed through the first connecting plate and the second connecting plate, and the two end cover main bodies and the battery shell can be firmly fixed together by means of the cooperation of the first fixing plate and the second fixing plate.

Inventors

  • ZHANG XINGLIANG

Assignees

  • 浙江波恩电源制造有限公司

Dates

Publication Date
20260508
Application Date
20250526

Claims (7)

  1. 1. The battery end cover connecting structure is characterized by comprising a first fixing plate (1) and a second fixing plate (2), wherein the first fixing plate is used for connecting end cover main bodies (4) at two ends of a battery shell (3), one side, close to the battery shell (3), of the first fixing plate (1) is fixedly provided with a plurality of uniformly distributed first connecting plates (5), one side, close to the battery shell (3), of the second fixing plate (2) is fixedly provided with second connecting plates (6) corresponding to the first connecting plates (5), and the first connecting plates (5) and the second connecting plates (6) are detachably fixed together; The fixing plate I (1) and the fixing plate II (2) are both processed with annular grooves (7) matched with the end cover main body (4) on the side close to each other, and the end cover main body (4) is inserted into the annular grooves (7).
  2. 2. The battery end cover connecting structure according to claim 1, wherein a plurality of positioning rods (8) distributed in an annular array are fixedly arranged on the inner walls of the two annular grooves (7), positioning holes (9) matched with the positioning rods (8) are formed in the outer walls of the sides, away from the two end cover main bodies (4), of the two end cover main bodies, and the positioning rods (8) are spliced with the positioning holes (9).
  3. 3. The battery end cover connecting structure according to claim 1, wherein the outer wall of each first connecting plate (5) is provided with a mounting hole (10), a fastening bolt (11) is arranged in each mounting hole (10), and the first connecting plates (5) and the second connecting plates (6) are detachably fixed together through the fastening bolts (11).
  4. 4. A battery end cover connecting structure according to claim 3, wherein a dust plug (12) is inserted into each mounting hole (10), and the dust plug (12) is sleeved outside the fastening bolt (11).
  5. 5. The battery end cover connecting structure according to claim 1, wherein a plurality of equally-spaced ventilation holes (13) are formed in the outer wall of each first connecting plate (5) and the outer wall of each second connecting plate (6).
  6. 6. The battery end cover connecting structure according to claim 1, wherein a plurality of arc-shaped positioning plates (14) distributed in an annular array are fixedly arranged on one side, close to the battery shell (3), of each end cover main body (4), and arc-shaped positioning grooves (15) with the same number as the arc-shaped positioning plates (14) are formed in two ends of the battery shell (3).
  7. 7. The battery end cover connecting structure according to claim 1, wherein a rubber sealing ring (16) for filling a gap between the two end cover main bodies (4) and the battery shell (3) is arranged between the two end cover main bodies.

Description

Battery end cover connection structure Technical Field The utility model relates to the technical field of end cover connection, in particular to a battery end cover connection structure. Background A battery is a device for converting chemical energy, physical energy, etc. into electric energy, and is widely used in modern society. The battery generally consists of a positive electrode, a negative electrode, an electrolyte, a separator and the like. In the battery, a potential difference is generated between the anode and the cathode through chemical reaction or other physical processes, so that electrons are driven to flow from the cathode to the anode to form current, and the output of electric energy is realized. The existing battery end cover is usually fixed in a welding mode, a certain pressure is applied between the battery end cover and the shell, current is introduced, and the materials are melted by heat generated by the current through a contact resistor, so that connection is achieved. Its advantages are simple equipment, low cost and high welding efficiency. For example, the end cover sealing connection structure of the cylindrical battery with the publication number of CN220155631U in the prior art adopts resistance welding or laser welding for electric connection, has larger manufacturing space, is convenient for production and manufacture, and improves the production efficiency. However, the prior art has the following problems that the battery end cover is oxidized in long-term use, poor contact and the like are caused, and the end cover is required to be disassembled for maintenance and replacement at the moment, however, the end cover cannot be replaced due to a welding mode, and can only be separated through the cutting assembly, so that the maintenance time is increased, and the maintenance cost is increased. Based on the structure, the battery end cover connecting structure is simple in structure and convenient to detach and replace. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides a battery end cover connecting structure, which is characterized in that a first fixing plate and a second fixing plate are connected and fixed through a first connecting plate and a second connecting plate, two end cover main bodies and a battery shell can be firmly fixed together by means of the matching of the first fixing plate and the second fixing plate, when the end cover main bodies need to be replaced, only fastening bolts between the first connecting plate and the second connecting plate need to be loosened, the structure is simple, and the replacement is very quick, so that the problems in the background technology are solved. The battery end cover connecting structure comprises a first fixing plate and a second fixing plate, wherein the first fixing plate and the second fixing plate are used for connecting end cover main bodies at two ends of a battery shell, one side, close to the battery shell, of the first fixing plate is fixedly provided with a plurality of uniformly distributed connecting plates, one side, close to the battery shell, of the second fixing plate is fixedly provided with a connecting plate second corresponding to the connecting plate first, the connecting plate first and the connecting plate second are detachably fixed together, annular grooves matched with the end cover main bodies are formed in the side, close to the two fixing plates, of the first fixing plate and the two fixing plates, and the end cover main bodies are inserted into the annular grooves. In a preferred embodiment, a plurality of locating rods which are distributed in an annular array are fixedly arranged on the inner walls of the two annular grooves, locating holes which are matched with the locating rods are formed in the outer walls of one sides, far away from the two end cover bodies, of the two end cover bodies, the locating rods are spliced with the locating holes, and the locating rods are matched with the locating holes, so that an assembler can be assisted to quickly sleeve the first fixing plate and the second fixing plate on the end cover bodies, and the connecting efficiency can be improved. In a preferred embodiment, an installing hole is formed in the outer wall of each connecting plate, a fastening bolt is arranged in the installing hole, the connecting plates I and II are detachably fixed together through the fastening bolt, the connecting plates I and II are fixed through the fastening bolt, and compared with the mode of spring clamping, the connecting plates I and II are fixed, and the stability is higher. In a preferred embodiment, each mounting hole is internally plugged with a dust plug, the dust plugs are sleeved outside the fastening bolts, the mounting holes can be sealed by the dust plugs, the attractiveness can be improved, and dust and sundries can be prevented from blocking the mounting holes to influence the disassembly of