Convenient-to-assemble power bank injection molding shell

Abstract

The convenient-to-assemble power bank injection molding shell comprises an upper cover and a bottom cover, a plurality of elastic barbs are arranged on the inner wall of the upper cover at intervals in the circumferential direction, and locking grooves matched with the elastic barbs are formed in the corresponding positions of the inner wall of the bottom cover. The upper cover and the bottom cover are in locking connection through mutual matching of the elastic barbs and the locking grooves, a fool-proof protruding block embedded into the bottom cover is arranged on the outer side of the upper cover, a fool-proof clamping groove matched with the fool-proof protruding block in shape is formed in the corresponding position of the bottom cover, and a guide mechanism is further arranged between the upper cover and the bottom cover. The guide mechanism comprises a guide column arranged on the inner wall of the upper cover and a guide groove formed in the inner wall of the bottom cover, an inclined face with the inner diameter gradually reduced is arranged at the opening end of the guide groove, and when the upper cover and the bottom cover are locked, the guide column slides down through the inclined face and is inserted into the guide groove to be fixed. Through the above structure, the injection-molded shell of the power bank can be assembled efficiently and accurately, and meanwhile, the injection-molded shell has good structural stability and use safety.

Description

Technical Field

[0001] This utility model relates to the field of injection molded shell technology, specifically to an injection molded shell for a power bank that is easy to assemble. Background Technology

[0002] With the widespread use of mobile electronic devices, the market demand for power banks, as important portable power sources, is growing rapidly. The injection-molded casing of a power bank, as a crucial component, not only protects the internal battery and electronic components but also influences the power bank's appearance and portability. Currently, most power bank injection-molded casings on the market adopt traditional structural designs to meet basic protection requirements. However, in the pursuit of efficient production and a superior user experience, the limitations of traditional power bank injection-molded casings in terms of assembly are becoming increasingly apparent.

[0003] In actual production, the assembly process of existing power bank injection-molded shells is quite cumbersome. On the one hand, the lack of effective positioning and locking structures means that the top and bottom covers often require precise manual alignment during assembly. This not only demands high skill levels from operators but also results in low assembly efficiency and is prone to assembly deviations, leading to poor sealing and stability of the shell. On the other hand, the absence of reasonable error-proofing design makes it easy for the top and bottom covers to be installed in the wrong direction during assembly. Once installed incorrectly, disassembly and reassembly are required, making it difficult to quickly and accurately align the top and bottom covers during assembly. This increases the difficulty and labor intensity of assembly, further increasing assembly time and costs. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a power bank injection molded shell that is easy to assemble, which can effectively solve the technical problem that the current power bank injection molded shell is not easy to assemble.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An easy-to-assemble injection-molded casing for a power bank includes an upper cover and a lower cover. The inner wall of the upper cover is circumferentially provided with several elastic barbs, and the inner wall of the lower cover has corresponding locking grooves that match the elastic barbs. The upper cover and lower cover are locked together by the interaction of the elastic barbs and locking grooves. The outer side of the upper cover has a foolproof protrusion that embeds into the lower cover, and the lower cover has a foolproof slot with a shape matching the foolproof protrusion. A guide mechanism is also provided between the upper cover and the lower cover. The guide mechanism includes a guide post on the inner wall of the upper cover and a guide groove on the inner wall of the lower cover. The opening end of the guide groove has an inclined surface with a gradually decreasing inner diameter. When the upper cover and lower cover are locked, the guide post slides down the inclined surface and inserts into the guide groove for fixation.

[0007] Furthermore, the inner wall of the bottom cover is provided with a number of sliding grooves for controlling the movement direction of the corresponding elastic barb. The number and position of the sliding grooves correspond to the locking grooves, and the locking grooves are located at the ends of the corresponding sliding grooves.

[0008] Furthermore, the number of the anti-foolproof bumps is set to two, and the anti-foolproof bumps are distributed on two adjacent sides of the top cover.

[0009] Furthermore, the inner wall of the upper cover is provided with an upper cover guide boss, and the inner wall of the bottom cover is provided with a bottom cover guide boss at a corresponding position that contacts the upper cover guide boss. The guide post is provided on the side where the upper cover guide boss and the bottom cover guide boss contact each other, and the guide groove is opened on the side where the bottom cover guide boss and the upper cover guide boss contact each other.

[0010] Furthermore, the outer side of the bottom cover is provided with a charging port and several heat dissipation holes for heat dissipation.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The power bank injection-molded shell provided by this utility model features elastic barbs spaced circumferentially on the inner wall of the upper cover and a corresponding locking groove on the inner wall of the bottom cover. The upper and lower covers are locked together by the cooperation of the elastic barbs and the locking groove, resulting in a simple structure and a stable connection. Anti-foolproof protrusions are provided on the outer side of the upper cover, and anti-foolproof slots are provided on the corresponding bottom cover, which can prevent incorrect orientation during assembly and improve assembly accuracy. The guide mechanism between the upper and lower covers allows the guide post to slide smoothly down the inclined surface and insert into the guide groove for fixation during assembly, providing precise guidance and making the assembly process smoother and more efficient, greatly reducing assembly difficulty and improving assembly efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the upper cover structure of an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the bottom cover structure of an embodiment of the present utility model;

[0016] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged schematic diagram of section A in the middle;

[0017] Numbering on the map:

[0018] 1-Top cover, 2-Bottom cover, 3-Elastic barb, 4-Locking groove, 5-Anti-foolproof protrusion, 6-Anti-foolproof slot, 7-Guide post, 8-Guide groove, 9-Inclined surface, 10-Sliding groove, 11-Top cover guide protrusion, 12-Bottom cover guide protrusion, 13-Charging socket, 14-Heat dissipation hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-4 As shown, this utility model provides an easy-to-assemble injection-molded casing for a power bank, mainly composed of an upper cover 1 and a bottom cover 2. The upper cover 1 and the bottom cover 2 are designed with specific structures to achieve convenient and stable assembly. The overall structure aims to improve the assembly efficiency, structural stability and safety of the power bank casing.

[0021] The inner wall of the upper cover 1 is provided with several elastic barbs 3 spaced circumferentially. These elastic barbs 3 have a certain elastic deformation capability. The inner wall of the lower cover 2 is provided with corresponding locking grooves 4 that match the elastic barbs 3. During assembly, when the upper cover 1 and the lower cover 2 approach each other, the elastic barbs 3 will be squeezed by the inner wall of the lower cover 2 and undergo elastic deformation. As the upper cover 1 and the lower cover 2 approach further, the elastic barbs 3 will slide past the corresponding structure of the inner wall of the lower cover 2 and finally lock into the locking groove 4. When the elastic barbs 3 are fully locked into the locking groove 4, due to the elastic recovery effect of the elastic barbs 3, the upper cover 1 and the lower cover 2 will be tightly locked together, thereby achieving a stable assembly of the upper cover 1 and the lower cover 2.

[0022] To better control the movement of the elastic hooks 3, the inner wall of the bottom cover 2 is provided with several grooves 10 for controlling the movement direction of the corresponding elastic hooks 3. The number and position of the grooves 10 correspond to the locking grooves 4, and the locking grooves 4 are located at the ends of the corresponding grooves 10. During assembly, when the elastic hooks 3 are compressed and undergo elastic deformation and movement, they will slide within the grooves 10. The grooves 10 guide the movement direction of the elastic hooks 3, ensuring that the elastic hooks 3 can accurately engage with the locking grooves 4, further improving the accuracy and stability of the assembly.

[0023] To prevent incorrect installation of the upper cover 1 and the bottom cover 2 during assembly, a foolproof protrusion 5 is provided on the outer side of the upper cover 1 to be embedded in the bottom cover 2, and a foolproof groove 6 with a corresponding shape on the bottom cover 2 to match the foolproof protrusion 5. There are two foolproof protrusions 5, distributed on two adjacent sides of the upper cover 1. During assembly, the upper cover 1 and the bottom cover 2 can only be correctly assembled when the foolproof protrusion 5 is accurately embedded in the foolproof groove 6. If the installation orientation is incorrect, the foolproof protrusion 5 will not be able to be embedded in the foolproof groove 6, thus avoiding incorrect assembly and improving the accuracy and efficiency of assembly.

[0024] A guiding mechanism is also provided between the upper cover 1 and the bottom cover 2. This guiding mechanism includes a guide post 7 located on the inner wall of the upper cover 1 and a guide groove 8 located on the inner wall of the bottom cover 2. The guide groove 8 has an inclined surface 9 with a gradually decreasing inner diameter at its opening end. During assembly, when the upper cover 1 and the bottom cover 2 approach each other, the guide post 7 first contacts the inclined surface 9 at the opening end of the guide groove 8. Because the inner diameter of the inclined surface 9 gradually decreases, the guide post 7 gradually slides into the guide groove 8 under the guidance of the inclined surface 9. As the upper cover 1 and the bottom cover 2 continue to approach each other, the guide post 7 smoothly slides down and inserts into the guide groove 8 for fixation. The function of the guiding mechanism is to guide the upper cover 1 and the bottom cover 2 to be correctly aligned and assembled, avoiding offset and misalignment during assembly, and improving the accuracy and efficiency of assembly.

[0025] The inner wall of the upper cover 1 is provided with an upper cover guide boss 11, and the inner wall of the lower cover 2 is provided with a lower cover guide boss 12 at a corresponding position, which contacts the upper cover guide boss 11. A guide post 7 is provided on the side where the upper cover guide boss 11 and the lower cover guide boss 12 contact each other, and a guide groove 8 is formed on the side where the lower cover guide boss 12 and the upper cover guide boss 11 contact each other. The cooperation between the upper cover guide boss 11 and the lower cover guide boss 1 further enhances the connection stability and guidance between the upper cover 1 and the lower cover 2. During assembly, the upper cover guide boss 11 and the lower cover guide boss 1 contact each other and provide support, while the guide post 7 and the guide groove 8 achieve precise guidance and positioning on their contact surfaces, allowing the upper cover 1 and the lower cover 2 to be assembled more accurately.

[0026] In addition, the outer side of the bottom cover 2 is provided with a charging port 13 and several heat dissipation holes 14. The charging port 13 is used to connect the charging circuit of the power bank to realize the charging and discharging functions of the power bank. The heat dissipation holes 14 help to improve the heat dissipation performance of the power bank and prevent the power bank from being affected by overheating during long-term use, thus protecting its performance and lifespan.

[0027] In summary, the easily assembled injection-molded power bank shell provided by this utility model achieves a locking connection between the upper cover 1 and the lower cover 2 by circumferentially spaced elastic barbs 3 on the inner wall of the upper cover 1 and correspondingly set locking grooves 4 on the inner wall of the lower cover 2. The elastic barbs 3 and locking grooves 4 cooperate with each other to achieve a locking connection between the upper cover 1 and the lower cover 2. The structure is simple and the connection is stable. The upper cover 1 is provided with anti-foolproof protrusions 5 on the outer side, and the lower cover 2 is provided with corresponding anti-foolproof slots 6, which can avoid directional errors during assembly and improve assembly accuracy. The guide mechanism set between the upper cover 1 and the lower cover 2 allows the guide post 7 to slide smoothly down the inclined surface 9 and be inserted into the guide groove 8 for fixation during assembly, which plays a precise guiding role, making the assembly process smoother and more efficient, greatly reducing the assembly difficulty and improving the assembly efficiency.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A power bank injection-molded casing that is easy to assemble, comprising a top cover and a bottom cover, characterized in that: The inner wall of the upper cover is provided with several elastic barbs spaced circumferentially. The inner wall of the lower cover is provided with a locking groove that matches the elastic barbs. The upper cover and the lower cover are locked together by the cooperation of the elastic barbs and the locking groove. The outer side of the upper cover is provided with a foolproof protrusion that is embedded in the lower cover. The lower cover is provided with a foolproof slot that matches the shape of the foolproof protrusion at a corresponding position. A guide mechanism is also provided between the upper cover and the lower cover. The guide mechanism includes a guide post on the inner wall of the upper cover and a guide groove on the inner wall of the lower cover. The opening end of the guide groove is provided with an inclined surface with a gradually decreasing inner diameter. When the upper cover and the lower cover are locked, the guide post slides down through the inclined surface and inserts into the guide groove for fixation.

2. The easily assembled injection-molded casing for a power bank according to claim 1, characterized in that: The inner wall of the bottom cover is provided with a number of sliding grooves for controlling the movement direction of the corresponding elastic barb. The number and position of the sliding grooves correspond to the locking grooves, and the locking grooves are located at the ends of the corresponding sliding grooves.

3. The easily assembled injection-molded casing for a power bank according to claim 1, characterized in that: The number of the anti-foolproof bumps is set to two, and the anti-foolproof bumps are distributed on two adjacent sides of the top cover.

4. The easily assembled injection-molded casing for a power bank according to claim 1, characterized in that: The inner wall of the upper cover is provided with an upper cover guide boss, and the inner wall of the bottom cover is provided with a bottom cover guide boss at a corresponding position that contacts the upper cover guide boss. The guide post is provided on the side where the upper cover guide boss and the bottom cover guide boss contact each other, and the guide groove is opened on the side where the bottom cover guide boss and the upper cover guide boss contact each other.

5. A power bank injection-molded casing that is easy to assemble according to any one of claims 1-4, characterized in that: The outer side of the bottom cover is provided with a charging port and several heat dissipation holes for heat dissipation.

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