A mobile power supply easy to disassemble
By using the positioning plug slots of the upper and lower shells of the power bank and the clamping design of the front and rear shells, the problem of the shell being difficult to disassemble in the prior art is solved, and convenient disassembly and maintenance are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HI-TECH ELECTRONIC IND CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-21
AI Technical Summary
The casing of existing power banks is difficult to open, which limits the repair, maintenance and replacement of internal components, and prying open the casing can easily damage the snap-fit structure.
The upper and lower shells are fitted together by positioning plugs and slots, and then clamped together with the front and rear shells and locked with screws, making it easy to disassemble and assemble.
It enables convenient disassembly and reassembly of the power bank, facilitating the repair, maintenance, and replacement of internal components, and avoiding damage to the outer casing connection structure.
Smart Images
Figure CN224537225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of portable power banks, and in particular to an easy-to-disassemble portable power bank. Background Technology
[0002] A power bank, also known as a portable charger, is a portable charging device that integrates power supply and charging functions. It generally includes a casing, battery cells, circuit board, and input / output interfaces. Power banks can charge mobile devices such as mobile phones, tablets, headphones, and smartwatches anytime and anywhere, solving the problem of charging in places without fixed power outlets.
[0003] In existing technologies, the outer shell of a power bank is often assembled from two half-shells. These half-shells are connected by interlocking snap-fit mechanisms, which are located inside the half-shells and integrally formed. Once assembled, the snap-fit mechanisms are not accessible from the outer surface of the shell. Therefore, the snap-fit connection method used in conventional power banks makes it difficult to disassemble the shell after assembly, limiting the repair, maintenance, and replacement of internal components. If the gap between the half-shells is pried open to forcibly disassemble the shell, the snap-fit mechanisms, which are integrally formed with the other components of the half-shells, are easily broken, making reassembly impossible. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide an easy-to-disassemble portable power bank to solve the above problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] This utility model provides an easy-to-disassemble portable power bank, which includes a shell, a battery cell and a circuit board. The shell includes an upper shell, a lower shell, a front shell and a rear shell. The upper shell has upper docking parts at its front and rear ends, and the lower shell has lower docking parts at its front and rear ends. The bottom surface of the upper docking part protrudes to form a positioning plug, and the top surface of the lower docking part is recessed downward to form a positioning slot corresponding to the positioning plug.
[0007] The upper and lower shells are joined together to form a main cavity. The positioning plug is fitted into the positioning slot. The upper and lower mating parts abut against each other. The battery cell is housed in the main cavity. The rear end opening of the front shell forms a front cavity for accommodating the circuit board. The upper and lower mating parts located at the front end of the main cavity are embedded in the front cavity and clamped by the front shell. Screw holes are provided on the top surface of the front shell. The front shell is connected to the lower mating part by screws penetrating the upper mating part. The front end opening of the rear shell forms a rear cavity. The upper and lower mating parts located at the rear end of the main cavity are embedded in the rear cavity and clamped by the rear shell. Screw holes are also provided on the top surface of the rear shell. The rear shell is connected to the lower mating part by screws penetrating the upper mating part.
[0008] Preferably, the top surfaces of the front and rear shells are respectively recessed to form blind holes, the screw holes on the top surface of the front shell are opened at the bottom of the blind holes, the screw holes on the top surface of the rear shell are opened at the bottom of the blind holes, and the two upper mating portions located at the front and rear ends of the main cavity form downward recessed clearance openings.
[0009] Preferably, the positioning slot of the lower docking part includes a transverse slot and a longitudinal slot, wherein the transverse slot is perpendicular to the length direction of the outer shell, and the longitudinal slot is parallel to the length direction of the outer shell.
[0010] Preferably, the left side of the upper shell is fitted with the left side of the lower shell, and the right side of the upper shell is fitted with the right side of the lower shell.
[0011] Preferably, multiple cell limiting walls are formed on the inner walls of the upper and lower shells respectively. The cell limiting walls extend from the front end of the main cavity to the rear end of the main cavity along the length direction of the shell, and the multiple cell limiting walls are distributed side by side.
[0012] Preferably, the front end of the front shell is provided with an interface groove, and an interface socket corresponding to the interface groove is soldered onto the circuit board.
[0013] The main technical effects achieved by this utility model are as follows:
[0014] The portable power bank provided in this embodiment has an upper shell and a lower shell joined together to form a main cavity. The upper and lower connecting parts of the upper shell form a docking structure. These docking structures at the front and rear ends of the main cavity are respectively clamped by the front and rear shells and locked by screws on the front and rear shells. The portable power bank can be disassembled and reinstalled. The locking of the two shells to the upper and lower shells can be released by simply turning two screws. The disassembly and assembly operation is convenient, and it is convenient for the repair, maintenance and replacement of the internal components of the portable power bank. Attached Figure Description
[0015] Figure 1 A perspective view of the easily detachable portable power bank provided by this utility model;
[0016] Figure 2 This is a structural breakdown diagram of the power bank;
[0017] Figure 3 For the corresponding Figure 2 A schematic diagram showing the state after the upper and lower half-shells are connected.
[0018] Figure 4 This is a schematic diagram of the upper and lower mating portions clamped in the front shell.
[0019] Figure 5 This is a schematic diagram of the upper and lower mating parts clamped in the rear shell.
[0020] The reference numerals in the above figures are as follows:
[0021] Outer shell 1, main cavity 10, battery cell limiting wall 101;
[0022] Upper shell 11, upper mating part 111, clearance opening 1110, positioning plug 112;
[0023] Lower half shell 12, positioning slot 120, lower mating part 121;
[0024] Front housing 13, front cavity 130, top surface 13a of front housing, interface groove 1310;
[0025] Rear shell 14, rear cavity 140, top surface 14a of the rear shell;
[0026] Screw 15, screw hole 150;
[0027] Cell 2;
[0028] Circuit board 3, interface socket 31. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.
[0030] To avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not of great importance are omitted.
[0031] like Figure 1 and Figure 2 As shown, this utility model embodiment provides an easily detachable power bank, which includes a housing 1, a battery cell 2, and a circuit board 3. The housing 1 includes an upper half-shell 11, a lower half-shell 12, a front shell 13, and a rear shell 14. Along the length of the housing 1, the upper half-shell 11 has upper docking portions 111 at its front and rear ends, and the lower half-shell 12 has lower docking portions 121 at its front and rear ends. The bottom surface of the upper docking portion 111 protrudes to form a positioning plug 112, and the top surface of the lower docking portion 121 is recessed downwards to form a positioning slot 120 corresponding to the positioning plug.
[0032] Among them, combined Figure 2 and Figure 3 As shown, the upper half shell 11 and the lower half shell 12 are joined together to form the main cavity 10, so that the positioning plug 112 is fitted into the positioning slot 120. The upper docking part 111 and the lower docking part 121 abut against each other. The battery cell 2 is housed in the main cavity 10. The rear opening of the front shell 13 forms a front cavity 130 for accommodating the circuit board 3. The circuit board 3 is electrically connected to the battery cell 2. Generally, a wire can be used to lead the battery cell 2 from the main cavity 10 to the circuit board 3.
[0033] like Figure 4 As shown, the upper docking part 111 and the lower docking part 121 located at the front end of the main cavity 10 are embedded in the front cavity 130 and clamped by the front shell 13. The top surface 13a of the front shell 13 is provided with screw holes 150. The upper docking part 11 and the lower docking part 121 are also provided with threaded holes corresponding to the screw holes 150. The front shell 13 is connected to the lower docking part 121 through the upper docking part 11 by screws 15. The front opening of the rear shell 14 forms a rear cavity 140.
[0034] like Figure 5 As shown, the upper docking part 111 and the lower docking part 121 located at the rear end of the main cavity 10 are embedded in the rear cavity 140 and clamped by the rear shell 14. The top surface 14a of the rear shell 14 is also provided with screw holes 150. The rear shell 14 is connected to the lower docking part 121 by screws 15 penetrating the upper docking part 111.
[0035] The detailed assembly process of the above-mentioned power bank is as follows: Figure 2 As shown, first place the battery cell 2 on the lower half shell 12. At the front and rear ends of the main cavity 10, align the positioning plug 112 of the upper docking part 111 with the positioning slot 120 of the lower docking part 121, and insert the positioning plug 112 downwards into the positioning slot 120 to engage. This allows the upper half shell 11 and the lower half shell 12 to quickly position and dock with each other. At this time, the upper half shell 11 and the lower half shell 12 enclose each other, forming the main cavity 10 in the space between them. The battery cell 2 is now housed inside the main cavity 10. Figure 3 As shown, the circuit board 3 is installed into the front cavity 130 of the front housing 13, and then the front housing 13 is fitted onto the front end of the main cavity 10, so that the upper mating part 111 and the lower mating part 121 at the front end of the main cavity 10 are embedded into the front cavity 130 of the front housing 13. Screws 15 are inserted from top to bottom through the screw holes 150 of the front housing 13 to lock the upper mating part 111 and the lower mating part 121 together. Similarly, the rear housing 14 is fitted onto the main cavity 10. At the rear end, the upper docking part 111 and the lower docking part 121 at the rear end of the main cavity 10 are inserted into the rear cavity 140 of the rear shell 14. Then, the upper docking part 11 and the lower docking part 121 are locked together by screws 15 from top to bottom through the screw holes 150 of the rear shell 14. The front shell 13 and the rear shell 14 are respectively fixedly connected to the main structure formed by the docking of the upper shell 11 and the lower shell 12, thus completing the assembly of the power bank.
[0036] To disassemble the power bank, simply loosen the screws 15 on the front shell 13 and the rear shell 14, and pull the front shell 13 and the rear shell 14 out of the main structure. This will separate the upper shell 11 and the lower shell 12, completing the disassembly.
[0037] Therefore, the portable power supply provided by this utility model embodiment uses the front shell 13 and the rear shell 14 to clamp the upper half shell 11 and the lower half shell 12 together, and locks the connection by the screws 15 on the front shell 13 and the rear shell 14. This portable power supply can be disassembled and reinstalled after the outer shell 1 is assembled. The locking of the screws 15 is strong enough. The assembly and fixation of the outer shell can be released by simply turning the two screws 15. The operation is convenient and facilitates the repair, maintenance and replacement of the internal components of the portable power supply. There is no need to use the existing technology to pry open the gap between the half shells to disassemble the outer shell 1 and damage the outer shell connection structure.
[0038] Furthermore, the top surface 13a of the front housing 13 and the top surface 14a of the rear housing 14 are respectively recessed to form blind holes. The screw holes 150 of the top surface 13a of the front housing 13 are opened at the bottom of their blind holes, and the screw holes 150 of the top surface 14a of the rear housing 14 are opened at the bottom of their blind holes. The two upper mating portions 111 located at the front and rear ends of the main cavity 10 form downwardly recessed relief openings 1110. The thickness of the upper mating portion 111 below the relief opening 1110 is small. The setting of blind holes can reduce the stroke required for the screw 15 to pass through the upper mating portion 111 to reach the lower mating portion 121. In addition, by utilizing the structural adaptation of the relief opening 1110 and the blind holes, it is convenient for the screw holes 150 to quickly align with the corresponding threaded holes of the upper mating portion 11 and the lower mating portion 121, thereby improving the efficiency of disassembly and assembly.
[0039] In this embodiment, the upper docking part 111 is integrally formed with the upper half shell 11, and the lower half shell 12 is integrally formed with the lower docking part 121.
[0040] The positioning slot 120 of the lower docking part 121 is adapted to the positioning plug 112. In order to restrict the relative movement of the upper shell 11 and the lower shell 12 after the positioning plug 112 is engaged with the positioning slot 120, the positioning slot 120 of the lower docking part 121 includes a transverse slot and a longitudinal slot. The transverse slot is perpendicular to the length direction of the outer shell 1, and the longitudinal slot is parallel to the length direction of the outer shell 1, thereby restricting the relative movement of the upper shell 11 and the lower shell 12 in various directions on the plane.
[0041] The upper shell 11 and the lower shell 12 are arched. When the left and right side edges of the upper shell 11 and the lower shell 12 are joined, the left side of the upper shell 11 fits into the left side of the lower shell 12, and the right side of the upper shell 11 fits into the right side of the lower shell 12. The upper docking part 111 forms gaps with the left and right sides of the upper shell 11, and the lower docking part 121 also forms gaps with the left and right sides of the lower shell 12, so that the connecting wires between the battery cell 2 and the circuit board 3 can pass through these gaps.
[0042] To further stabilize the structure, screw holes 150 can be provided on the bottom surface of the front housing 13, so that screws 15 pass through the top surface 13a, the upper mating part 111, the lower mating part 121 and the bottom surface of the front housing 13 in sequence, and nuts are put into the bottom surface of the screws 15 to lock them against the bottom surface of the front housing 13. Similarly, screw holes 150 can be provided on the bottom surface of the rear housing 14 for corresponding configuration.
[0043] Multiple cell limiting walls 101 are formed on the inner walls of the upper shell 11 and the lower shell 12 respectively. The cell limiting walls 101 extend from the front end of the main cavity 10 to the rear end of the main cavity 10 along the length direction of the outer shell 1. The multiple cell limiting walls 101 are arranged side by side with each other and abut against the cell 2, restricting the movement of the cell 2 in the main cavity 10 after assembly, so as to make its placement more stable.
[0044] To further improve the assembly stability of the front shell 13 and the rear shell 14, the front shell 13 is also provided with a horizontally arranged screw hole 150 at its front end. Along the length of the outer shell 1, the front end of the front shell 13 is connected to the lower mating part 121 at the front end of the lower half shell 12 by a screw 15. The rear end of the rear shell 14 is also provided with a screw hole 150, and the rear end of the front shell 13 is connected to the lower mating part 121 at the rear end of the lower half shell 12 by a screw 15.
[0045] In this embodiment, the front end of the front shell 13 is provided with an interface groove 1310, and the circuit board 3 is soldered with an interface seat 31 corresponding to the interface groove 1310.
[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0047] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A portable power bank that is easy to assemble and disassemble, characterized in that, It includes a casing (1), a battery cell (2), and a circuit board (3). The outer shell (1) includes an upper shell (11), a lower shell (12), a front shell (13), and a rear shell (14). The upper shell (11) has an upper docking part (111) at its front and rear ends, and the lower shell (12) has a lower docking part (121) at its front and rear ends. The bottom surface of the upper docking part (111) protrudes to form a positioning plug (112), and the top surface of the lower docking part (121) is recessed downward to form a positioning slot (120) corresponding to the positioning plug. The upper shell (11) and lower shell (12) are joined together to form a main cavity (10). The positioning plug (112) is fitted into the positioning slot (120). The upper docking part (111) and the lower docking part (121) abut against each other. The battery cell (2) is housed in the main cavity (10). The rear end opening of the front shell (13) forms a front cavity (130) for accommodating the circuit board (3). The upper docking part (111) and the lower docking part (121) located at the front end of the main cavity (10) are embedded in the front cavity (130) and clamped by the front shell (13). The top surface (1) of the front shell (13) is... 3a) has a screw hole (150) and the front shell (13) is connected to the lower docking part (121) by a screw (15) through the upper docking part (111). The front end opening of the rear shell (14) forms a rear cavity (140). The upper docking part (111) and the lower docking part (121) located at the rear end of the main cavity (10) are embedded in the rear cavity (140) and clamped by the rear shell (14). The top surface (14a) of the rear shell (14) also has a screw hole (150) and the rear shell (14) is connected to the lower docking part (121) by a screw (15) through the upper docking part (111).
2. The easily detachable portable power bank according to claim 1, characterized in that, The top surface (13a) of the front shell (13) and the top surface (14a) of the rear shell (14) are respectively recessed to form blind holes. The screw hole (150) of the top surface (13a) of the front shell (13) is opened at the bottom of its blind hole, and the screw hole (150) of the top surface (14a) of the rear shell (14) is opened at the bottom of its blind hole. The two upper mating parts (111) located at the front and rear ends of the main cavity (10) form downward recessed relief openings (1110).
3. The easily detachable portable power bank according to claim 1, characterized in that, The positioning slot (120) of the lower docking part (121) includes a transverse slot and a longitudinal slot. The transverse slot is perpendicular to the length direction of the outer shell (1), and the longitudinal slot is parallel to the length direction of the outer shell (1).
4. The easily detachable portable power bank according to claim 1, characterized in that, The left side of the upper shell (11) is fitted with the left side of the lower shell (12), and the right side of the upper shell (11) is fitted with the right side of the lower shell (12).
5. The easily detachable portable power bank according to claim 1, characterized in that, Multiple cell limiting walls (101) are formed on the inner walls of the upper shell (11) and the lower shell (12), respectively. The cell limiting walls (101) extend from the front end of the main cavity (10) to the rear end of the main cavity (10) along the length direction of the outer shell (1). The multiple cell limiting walls (101) are arranged side by side.
6. The easily detachable portable power bank according to claim 1, characterized in that, The front end of the front shell (13) is provided with an interface groove (1310), and an interface seat (31) corresponding to the interface groove (1310) is soldered on the circuit board (3).