A battery pack

Abstract

The application discloses a battery pack, which comprises a shell, a battery arranged in the shell, and a plastic clamping piece mounted on the shell, wherein the shell is provided with a female groove, the tail of the female groove is provided with a female sub-groove, the sidewall of the female sub-groove is provided with a first step, the front sidewall of the female groove is provided with a second step; the tail of the clamping piece is provided with a first clamping part extending downward, the first clamping part is provided with a first barb, the front part of the clamping piece is provided with a second clamping part extending downward, the second clamping part is provided with a second barb; a spring is arranged between the clamping piece and the female groove, the first clamping part is matched with the female sub-groove, and the second clamping part is matched with the front part of the female groove; under the action of the spring, the first barb hooks the first step, and the second barb hooks the second step. The mounting process of the battery pack does not need any connecting piece, the clamping piece is directly clamped in the female groove and the female sub-groove of the battery pack shell, the mounting is convenient, and the production efficiency of the battery pack is improved.

Description

Technical Field

[0001] This invention relates to energy storage devices, and more particularly to mobile power supplies. Background Technology

[0002] A battery pack, containing batteries, is a portable power bank and a common accessory in electronic and electrical products. To facilitate removal from the product, the battery pack is typically installed using a snap-fit ​​mechanism. Therefore, the battery pack needs snap-fit ​​components that engage with the snap-fit ​​parts of the product. In current technology, these snap-fit ​​components are installed using threaded connectors. During the production and assembly of battery packs, workers align the snap-fit ​​component with the corresponding groove on the battery pack and then use the threaded connector to secure the component to the pack. This process does not improve production efficiency. Summary of the Invention

[0003] The technical problem solved by this invention is to directly snap the snap-fit ​​component into the corresponding groove of the battery pack without omitting the connecting component.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a battery pack, including a housing, a battery disposed in the housing, and a plastic snap-fit ​​component mounted on the housing. The housing has a female groove, a female groove at its tail end, a first step on the side wall of the female groove, and a second step on the front side wall of the female groove. The snap-fit ​​component has a downwardly extending first snap-fit ​​portion at its tail end, with a first barb on the first snap-fit ​​portion. The snap-fit ​​component has a downwardly extending second snap-fit ​​portion at its front end, with a second barb on the second snap-fit ​​portion. A spring is provided between the snap-fit ​​component and the female groove. The first snap-fit ​​portion engages with the female groove, and the second snap-fit ​​portion engages with the front end of the female groove. Under the action of the spring, the first barb hooks onto the first step, and the second barb hooks onto the second step.

[0005] According to the above technical solution, when assembling the snap-fit ​​parts, the first snap-fit ​​part is inserted downward into the sub-slot, and the second snap-fit ​​part is snapped downward into the front part of the female slot along the front side wall and the second step. Since the snap-fit ​​parts are made of plastic and can elastically deform, when the first snap-fit ​​part moves downward past the first step, the first barb abuts against the first step, causing the first snap-fit ​​part to elastically deform and accumulate elastic potential energy; when the second snap-fit ​​part moves downward past the second step, the second barb abuts against the second step, causing the second snap-fit ​​part to elastically deform and accumulate elastic potential energy. After the first snap-fit ​​part moves downward past the first step, the elastic potential energy of the first snap-fit ​​part is released, the first snap-fit ​​part returns to its original position, and the first barb is located below the first step; after the second snap-fit ​​part moves downward past the second step, the elastic potential energy of the second snap-fit ​​part is released, the second snap-fit ​​part returns to its original position, and the second barb is located below the second step. During the assembly of the aforementioned snap-fit ​​component, the spring located between the snap-fit ​​component and the female groove is compressed and accumulates elastic potential energy. After the snap-fit ​​component is properly engaged, under the action of the spring, the first barb moves upward and hooks the first step, and the second barb moves upward and hooks the second step. In this way, the snap-fit ​​component is limited, and the installation of the snap-fit ​​component is completed.

[0006] The battery pack of the present invention does not require any connectors during installation. The snap-fit ​​parts directly engage with the female and female slots of the battery pack housing, making installation convenient and improving battery pack production efficiency. Attached Figure Description

[0007] The invention will be further described below with reference to the accompanying drawings:

[0008] Figure 1 This is a schematic diagram of a battery pack;

[0009] Figure 2 for Figure 1 A diagram showing the hidden portion of the 30-inch card connector;

[0010] Figure 3 for Figure 1 A schematic diagram showing the battery pack as viewed from the rear.

[0011] Figure 4 for Figure 1 Exploded view;

[0012] Figure 5 A schematic diagram of the connector 30;

[0013] Figure 6 for Figure 5 The diagram below shows the connector.

[0014] Explanation of symbols in the diagram:

[0015] 10. Housing; 11. Snap-fit ​​block; 12. Top cover; 13. Bottom cover; 15. Insertion hole; 17. Sliding groove;

[0016] 20. Battery;

[0017] 30. Snap-fit ​​component; 31. First snap-fit ​​part; 32. First barb; 33. Second snap-fit ​​part; 34. Second barb; 35. Guide groove; 36. Left side wall; 37. Right side wall; 38. Snap-fit ​​connector; 39. Pressing bevel;

[0018] 40. Mother groove; 41. Daughter groove; 42. First step; 43. Second step; 44. Guide bar;

[0019] 50. Female insertion;

[0020] 61. First sealing ring; 62. Second sealing ring. Detailed Implementation

[0021] Combination Figure 1 , Figure 2 , Figure 5 , Figure 6 A battery pack includes a housing 10, a battery 20 disposed in the housing, and a plastic snap-fit ​​connector 30 mounted on the housing. The housing has a female groove 40, a female groove 41 at its tail end, a first step 42 on the side wall of the female groove, and a second step 43 on the front side wall of the female groove. The snap-fit ​​connector has a downwardly extending first snap-fit ​​portion 31 at its tail end, with a first barb 32 on the first snap-fit ​​portion, and a downwardly extending second snap-fit ​​portion 33 at its front end, with a second barb 34 on the second snap-fit ​​portion. A spring is provided between the snap-fit ​​connector and the female groove. The first snap-fit ​​portion engages with the female groove, and the second snap-fit ​​portion engages with the front end of the female groove. Under the action of the spring, the first barb hooks onto the first step, and the second barb hooks onto the second step.

[0022] During the process of assembling the snap-fit ​​30 into the female groove 40 and the female groove 41, the first barb 32 uses the elastic deformation of the first snap-fit ​​part 31 to avoid the first step 42 and come to the bottom of the first step, and the second barb 34 uses the elastic deformation of the second snap-fit ​​part 33 to avoid the second step 43 and come to the bottom of the second step. Under the action of the spring force, the first barb hooks at the bottom of the first step and the second barb hooks at the bottom of the second step, thereby realizing the assembly of the snap-fit ​​30 and the housing 10.

[0023] Combination Figure 2 , Figure 5 The left and right side walls of the female groove 40 are provided with guide strips 44, and the left and right side walls of the snap-fit ​​30 are provided with guide grooves 35 that cooperate with the guide strips. The cooperation of the guide strips and guide grooves guides the lifting and lowering of the snap-fit ​​30 relative to the female groove 40 and the female groove 41.

[0024] like Figure 6The snap-fit ​​component 30 has a downwardly extending left side wall 36 on its left side and a downwardly extending right side wall 37 on its right side. Both the left and right sides are thin-plate-shaped. The left side wall mates with the left side wall of the female groove 40, and the right side wall mates with the right side wall of the female groove. The thin-plate-shaped left and right sides can undergo a certain degree of elastic deformation, which is beneficial to the stability of the snap-fit ​​component 30 in the female groove 40 and prevents it from moving left and right. This also benefits the stability of the battery pack's fit with electronic and electrical products.

[0025] like Figure 4 The housing 10 includes a snap-fit ​​block 11, an upper cover 12, and a lower cover 13. The snap-fit ​​block and the upper cover are integrally formed, and the upper cover and the lower cover are sealed together by a first sealing ring 61. A female groove 40 is formed on the snap-fit ​​block, a female groove 41 is formed at the tail of the lower cover, located outside the first sealing ring, and a first step 42 is formed at the tail of the upper cover, located outside the first sealing ring. The sealed connection between the upper cover and the lower cover achieves complete sealing of the battery, thus providing excellent waterproofing. All structures on the housing that mate with the snap-fit ​​block 30 are located on the outside of the upper cover and the lower cover to ensure the housing's seal against the battery.

[0026] like Figure 3 The front end face of the snap-fit ​​block 11 is provided with a front-to-back insertion hole 15, and the top cover 12 is provided with a vertical through hole, which communicates with the insertion hole; a female plug 50 is fitted inside the through hole, which is connected to the battery 20, and a second sealing ring 62 is provided between the female plug and the through hole to ensure the sealing of the casing to the battery.

[0027] like Figure 4 The snap-fit ​​block 11 has sliding grooves 17 on both sides. Electronic and electrical products, such as handheld high-pressure washers, have snap-fit ​​structures. These snap-fit ​​structures are strip-shaped grooves, with one end open and the other end equipped with a plug. The sidewalls of the strip-shaped groove have locking slots, and the groove has limiting parts that mate with the sliding grooves 17. It can be imagined that when the battery pack of the present invention is used with an electronic and electrical product, the snap-fit ​​block 11 slides in the strip-shaped groove, and simultaneously, the limiting parts slide in the sliding grooves 17, limiting the snap-fit ​​block. When the snap-fit ​​block 11 slides to the end of the strip-shaped groove, the plug is inserted into the socket 15 and connected to the female plug 50. Simultaneously, under the action of a spring, the upward-protruding snap-fit ​​connector 38 of the snap-fit ​​member 30 precisely engages with the locking slots of the strip-shaped groove, realizing the installation of the battery pack and the product. When the battery pack needs to be removed from the product, the operator inserts their fingers into the pressing slope 39 below the locking connector 38 and presses down on the locking member 30. The locking connector 38 disengages from the locking slot, and the operator can then remove the battery pack from the slot.

[0028] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A battery pack, comprising a housing (10), a battery (20) disposed within the housing, and a plastic snap-fit ​​connector (30) mounted on the housing, wherein the housing is provided with a female groove (40), characterized in that: The tail of the female groove is provided with a sub-groove (41), the side wall of the sub-groove is provided with a first step (42), and the front side wall of the female groove is provided with a second step (43); the tail of the snap-fit ​​part is provided with a downwardly extending first snap-fit ​​part (31), the first snap-fit ​​part is provided with a first barb (32), the front part of the snap-fit ​​part is provided with a downwardly extending second snap-fit ​​part (33), the second snap-fit ​​part is provided with a second barb (34); a spring is provided between the snap-fit ​​part and the female groove, the first snap-fit ​​part cooperates with the sub-groove, the second snap-fit ​​part cooperates with the front part of the female groove, under the action of the spring, the first barb hooks the first step, and the second barb hooks the second step; The first locking part is inserted downward into the sub-slot, and the second locking part is inserted downward into the front part of the female slot along the front side wall and the second step. When the first locking part passes the first step downward, the first barb abuts against the first step, and the first locking part undergoes elastic deformation, accumulating elastic potential energy. When the second locking part passes the second step downward, the second barb abuts against the second step, and the second locking part undergoes elastic deformation, accumulating elastic potential energy. After the first locking part moves downward past the first step, the elastic potential energy of the first locking part is released, the first locking part is reset, and the first barb is located below the first step; after the second locking part moves downward past the second step, the elastic potential energy of the second locking part is released, the second locking part is reset, and the second barb is located below the second step. The spring located between the snap-fit ​​and the female groove is compressed and accumulates elastic potential energy. After the snap-fit ​​is in place, under the action of the spring, the first barb moves up and hooks the first step, and the second barb moves up and hooks the second step, thus limiting the snap-fit.

2. The battery pack as described in claim 1, characterized in that: The left and right side walls of the mother groove (40) are provided with guide strips (44), and the left and right side walls of the snap fastener (30) are provided with guide grooves (35) that cooperate with the guide strips.

3. The battery pack as described in claim 1, characterized in that: The snap-fit ​​component (30) has a downwardly extending left side wall (36) on its left side and a downwardly extending right side wall (37) on its right side. Both the left and right side walls are thin sheets. The left side wall mates with the left side wall of the female groove (40), and the right side wall mates with the right side wall of the female groove.

4. The battery pack as described in claim 1, characterized in that: The housing (10) includes a snap-fit ​​block (11), an upper cover (12) and a lower cover (13). The snap-fit ​​block and the upper cover are integrally formed, and the upper cover and the lower cover are sealed together by a first sealing ring (61). The female groove (40) is formed on the snap-fit ​​block, the female groove (41) is formed at the tail of the lower cover and is located outside the first sealing ring, and the first step (42) is formed at the tail of the upper cover and is located outside the first sealing ring.

5. The battery pack as described in claim 4, characterized in that: The front end face of the snap-fit ​​block (11) is provided with a front-to-back insertion hole (15), and the top cover (12) is provided with a vertical through hole, which is connected to the insertion hole; a female plug (50) is fitted inside the through hole, which is connected to the battery (20), and a second sealing ring (62) is provided between the female plug and the through hole.

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