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CN-224217592-U - Waterproof battery pack

CN224217592UCN 224217592 UCN224217592 UCN 224217592UCN-224217592-U

Abstract

The utility model is suitable for the technical field of battery packs, and provides a waterproof battery pack which comprises a battery assembly, a terminal assembly, a sealing piece, an upper shell and a lower shell. The lower shell is internally provided with a containing cavity, the battery assembly and the terminal assembly are both installed in the containing cavity, and the sealing piece is arranged around the terminal assembly. The sealing element is arranged around the terminal assembly, the step part is arranged on the upper shell, the abutting part is arranged on the inner wall of the upper shell, the accommodating groove is formed between the abutting part and the step part, at least part of the terminal assembly is positioned in the accommodating groove, and the bottom of the step part and the bottom of the abutting part are both abutted against the sealing element. Like this, the sealing member encircles terminal subassembly circumference and seals, and is sealed effectual to through step portion and butt portion coextrusion sealing member, can make the sealing member effective deformation, further improved the sealed effect of sealing member, and then make the whole waterproof performance of battery package obtain promoting.

Inventors

  • CHEN DADONG
  • WANG XIANGZHU

Assignees

  • 深圳拓邦股份有限公司

Dates

Publication Date
20260508
Application Date
20250429

Claims (10)

  1. 1.A waterproof battery pack, comprising: a battery assembly for storing electrical energy; The terminal assembly is electrically connected with the battery assembly and is at least used for transmitting electric energy between the battery assembly and external equipment; The terminal assembly comprises an upper shell, a terminal assembly, a lower shell, a connecting hole and a connecting hole, wherein the upper shell is provided with a step part which sinks inwards, and the step part is provided with a connecting hole for the external equipment to be inserted into and connected with the terminal assembly; The battery assembly and the terminal assembly are both arranged in the accommodating cavity, and the upper shell is connected with the lower shell in a sealing way; A seal disposed about the terminal assembly; The inner wall of the upper shell is provided with an abutting part which is flush with the bottom surface of the step part in a protruding mode, an accommodating groove is formed in the abutting part and the step part at intervals, at least part of the terminal assembly is located in the accommodating groove, and the bottom of the step part and the bottom of the abutting part are abutted to the sealing element.
  2. 2. The waterproof battery pack of claim 1, wherein the terminal assembly comprises: The connecting terminals are arranged at intervals, and each connecting terminal comprises a fixed end for fixing and a plug-in end for inserting and connecting the external equipment; The circuit board is fixed with the connecting terminals, the fixed end of each connecting terminal is connected and fixed with the circuit board, and the battery assembly is electrically connected with the circuit board; The sealing element is arranged on the circuit board around each connecting terminal, and the step part and the abutting part simultaneously abut against the sealing element on the circuit board.
  3. 3. The waterproof battery pack according to claim 2, wherein the abutting portion is provided extending in the arrangement direction of the connection terminals, and extends over a length longer than the arrangement length of the connection terminals.
  4. 4. The waterproof battery pack according to claim 1, wherein the inside of the abutting portion has a hollow structure.
  5. 5. The waterproof battery pack of claim 2, wherein the terminal assembly further comprises: the fixing seats are stacked on the circuit board, the connecting terminals are fixed with the fixing seats in an injection molding mode, and the fixed end and the inserting end of each connecting terminal are exposed out of two opposite sides of the fixing seats respectively; The fixed end on each connecting terminal is connected and fixed with the circuit board, and the sealing piece is formed on the fixed seat in an injection molding mode around each connecting terminal.
  6. 6. The waterproof battery pack of claim 5, wherein a groove is provided on the holder around each of the connection terminals, and the sealing member is injection-molded in the groove.
  7. 7. The waterproof battery pack of claim 5, wherein the holder comprises: The sealing piece is injection-molded on the fixed seat; the boss is arranged on the base in a protruding mode, and each connecting terminal is fixed in the boss; Wherein the seal is disposed around the boss.
  8. 8. The waterproof battery pack according to any one of claims 1 to 7, further comprising: the support frame is arranged in the accommodating cavity, an installation space is formed in the support frame, and the battery assembly is installed in the installation space; wherein, the terminal assembly is fixed on the support frame.
  9. 9. The waterproof battery pack of claim 8, wherein the terminal assembly comprises a circuit board, a positioning plug is arranged on the supporting frame, a positioning groove is formed in the circuit board, and the positioning plug is inserted into the positioning groove.
  10. 10. The waterproof battery pack according to any one of claims 1 to 7, wherein a connector is provided at a position of the upper case for connection with the lower case, a sealing groove is provided at a position of the lower case for connection with the upper case, and the connector is inserted into the sealing groove and fusion-connected.

Description

Waterproof battery pack Technical Field The utility model belongs to the technical field of battery packs, and particularly relates to a waterproof battery pack. Background With the rapid development of new energy technology, a battery pack for storing electric energy is widely used in various products in such a way that it can provide stable electric energy. The battery pack is provided with a connecting terminal for inserting an external device to take electricity or charging the battery pack. Thus, an opening needs to be formed in the case of the battery pack, and the connection terminal is electrically connected to the external device through the opening. In the related art, a structure for sealing a connection terminal is provided in a battery pack, and the sealing is usually performed by installing a rubber gasket. However, the sealing mode has weak waterproof capability, and the rubber sealing ring is easy to age, has short service life and causes sealing failure, so that dust and water vapor easily enter the battery pack, and internal elements are damaged. Therefore, the sealing structure of the conventional battery pack has a problem of poor sealing reliability. Disclosure of utility model In view of the above, the present utility model provides a waterproof battery pack to solve the problem of poor sealing reliability of the product. In order to solve the problems, the technical scheme of the utility model is realized as follows: The waterproof battery pack comprises a battery assembly, a terminal assembly, an upper shell, a lower shell and a sealing piece, wherein the terminal assembly is used for storing electric energy and is electrically connected with the battery assembly, the terminal assembly is at least used for transmitting electric energy between the battery assembly and external equipment, the upper shell is provided with a stepped portion which is sunken inwards, a connecting port for inserting the external equipment into the battery assembly and is connected with the terminal assembly is formed in the stepped portion, a containing cavity is formed in the lower shell, the battery assembly and the terminal assembly are both installed in the containing cavity, the upper shell is in sealing connection with the lower shell, the sealing piece is arranged around the terminal assembly, an abutting portion which is flush with the bottom surface of the stepped portion is convexly arranged on the inner wall of the upper shell, a containing groove is formed between the abutting portion and the stepped portion at intervals, at least part of the terminal assembly is located in the containing groove, and the bottom of the stepped portion and the bottom of the abutting portion are both abutted against the sealing piece. In some embodiments, the terminal assembly comprises a plurality of connection terminals arranged at intervals, wherein each connection terminal comprises a fixed end used for fixing and a plug-in end used for allowing the external equipment to be plugged in and connected, a circuit board, each connection terminal is fixed on the circuit board, the fixed end on each connection terminal is connected and fixed with the circuit board, the battery assembly is electrically connected with the circuit board, the sealing element is arranged on the circuit board around each connection terminal, and the step part and the abutting part simultaneously abut against the sealing element on the circuit board. In some embodiments, the abutting portion extends along an arrangement direction of each of the connection terminals, and extends for a length greater than an arrangement length of each of the connection terminals. In some embodiments, the interior of the abutment has a hollow structure. In some embodiments, the terminal assembly further comprises a fixing base stacked on the circuit board, each connecting terminal is fixed with the fixing base in an injection molding mode, the fixed end and the plug-in end of each connecting terminal are exposed out of two opposite sides of the fixing base respectively, the fixed end of each connecting terminal is connected and fixed with the circuit board, and the sealing piece is fixed on the fixing base in an injection molding mode around each connecting terminal. In some embodiments, a groove is formed on the fixing base around each connecting terminal, and the sealing member is injection molded in the groove. In some embodiments, the fixing base comprises a base, the sealing element is injection molded on the fixing base, a boss is arranged on the base in a protruding mode, and each connecting terminal is fixed in the boss, wherein the sealing element is arranged around the boss. In some embodiments, the waterproof battery pack further comprises a support frame arranged in the accommodating cavity, an installation space is formed in the support frame, the battery assembly is installed in the installation space, and the terminal assembly is fixed on the sup