Snap-on power bank structure
Patent Information
- Application Number
- CN202522232973.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-22
AI Technical Summary
[0004]本实用新型的发明目的在于解决现有的充电宝产品外壳装配方式，存在外壳开螺丝孔打螺丝固定满足不了外观要求，外壳采用超声波焊接方式固定不便于售后维修服务，增加了维修成本的问题
本方案的卡扣式充电宝结构， 除底座外的前外壳和后外壳上没有外露的螺钉孔，靠紧固于后外壳内部的多个锁片插入通过多个螺丝紧固于前外壳内部的内壳周侧的多个过孔后与卡片卡接锁定，提高了产品的外观美，另外为了加强前外壳与后外壳紧固强度，本方案设置了底座，并通过底座上的四个第一螺钉孔及前外壳与后外壳上的各两个第一螺钉柱，由螺钉来加固。本方案的底座，让充电宝既可以放置于桌面，又可以根据需要挂于墙上使用。本方案内壳上的第二螺丝孔与前外壳和后外壳连接缝有空间间隔，保证了电池组与前外壳的固定不会受到前外壳和后外壳连接缝及附近外部力影响，同样后多个锁片与多个卡片的卡接点与前外壳和后外壳连接缝有空间间隔，保证了前外壳与后外壳的卡接锁定不会受到前外壳和后外壳连接缝及附近外部力影响。本方案的第二螺丝柱与前外壳之间设有加强块，提高了电池组和电路板组件与前外壳固定的结构强度，第三螺丝柱与后外壳之间设有加强块，提高了后外壳与前外壳的连接强度。本方案在前外壳的前部及后外壳的后部，分别设置了第一加强筋区和第二加强筋区，在前外壳和后外壳的周壁设置了第三加强筋，提高了前外壳和后外壳的机械强度和防跌落能力，并提高了电池组的安全性。
Smart Images
Figure CN224923435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of power bank products, and in particular to a snap-on power bank structure. Background Technology
[0002] A power bank, also known as a portable charger, is a portable electronic product that stores electrical energy. It's primarily used to charge handheld mobile devices and other consumer electronics (such as mobile phones and laptops), especially in situations where an external power source is unavailable. Its main components include a battery for energy storage, a circuit board assembly, and a casing. Due to safety considerations, power banks require strict adherence to secure casing methods. Current power bank casing assembly methods primarily involve: (1) The outer casing is fixed with screws through screw holes. This fastening method cannot meet the appearance requirements of customers who have high requirements for appearance; (2) The outer shell is fixed by ultrasonic welding. This fastening method is not convenient for after-sales maintenance services. The outer shell must be broken to open it, which increases maintenance costs.
[0003] To address the aforementioned shortcomings, this solution proposes a snap-on power bank structure. Utility Model Content
[0004] The purpose of this invention is to solve the problems of existing power bank product casing assembly methods, which have drawbacks such as the inability to meet aesthetic requirements by drilling screw holes and using screws for fixing, and the inconvenience of ultrasonic welding for after-sales service, increasing maintenance costs. The specific solution is as follows: The snap-on power bank structure includes a front outer shell, a rear outer shell, and a base disposed on the lower side of the front and rear outer shells. An inner shell is provided inside the front and rear outer shells, and a battery pack is disposed inside the inner shell. A circuit board assembly is disposed on the rear side of the inner shell. The inner shell is fixed to the interior of the front outer shell by fasteners. A fastening mechanism is provided between the periphery of the inner shell and the interior of the rear outer shell for closing and locking the front and rear outer shells.
[0005] Furthermore, the base is provided with a pair of hooks at each of its front and rear ends, which are respectively engaged with the corresponding locking blocks of the front and rear outer shells.
[0006] Furthermore, the base is also provided with four first screw holes, which match the first screw posts of the front and rear housings, and the base is fastened to the front and rear housings by screws.
[0007] Furthermore, the base has two symmetrical hanging holes on the lower center, which can be used to hang the casing and its products on the wall.
[0008] Furthermore, the inner shell has a plurality of second screw holes on its periphery, which match a plurality of second screw posts inside the front outer shell, and the fastener is a screw.
[0009] Furthermore, the fastening mechanism includes multiple through holes on the periphery of the inner shell and a card on the edge of the through holes extending toward the front outer shell, and also includes multiple locking pieces inside the rear outer shell, the locking pieces being inserted into the through holes and engaging with the card.
[0010] Furthermore, the locking plate is L-shaped, with a third screw hole on its shorter end and a protrusion on its longer end. The third screw hole is fixed to the third screw post inside the rear housing by a screw, and the protrusion engages with the card.
[0011] Furthermore, the inner shell includes a front inner shell and a rear inner shell, with the periphery of the inner shell located outside the edge where the front and rear inner shells connect.
[0012] Furthermore, the rear housing is provided with a USB interface, which matches the USB socket on the circuit board assembly.
[0013] Furthermore, the front housing is provided with a power cord outlet and an indicator light outlet.
[0014] This solution has the following beneficial effects: This design features a snap-on power bank structure with no exposed screw holes on the front and rear outer shells (excluding the base). Multiple locking tabs, secured inside the rear shell, insert into multiple through-holes on the periphery of the inner shell of the front shell, which are then fastened with screws to engage with the card, enhancing the product's aesthetics. To further strengthen the connection between the front and rear shells, a base is included, reinforced with screws through four first screw holes on the base and two first screw posts on each of the front and rear shells. This base allows the power bank to be placed on a table or hung on a wall as needed. The second screw holes on the inner shell are spaced from the seam between the front and rear shells, ensuring the battery pack's fixation to the front shell is not affected by the seam or nearby external forces. Similarly, the engagement points of the multiple locking tabs and cards are spaced from the seam between the front and rear shells, ensuring the locking mechanism is not affected by the seam or nearby external forces. This design incorporates a reinforcing block between the second screw post and the front housing, enhancing the structural strength of the battery pack and circuit board assembly's fixation to the front housing. Similarly, a reinforcing block between the third screw post and the rear housing improves the connection strength between the rear and front housings. Furthermore, this design includes a first reinforcing rib area at the front of the front housing and a second reinforcing rib area at the rear of the rear housing, along with a third reinforcing rib on the peripheral walls of both the front and rear housings. These features enhance the mechanical strength and drop resistance of the front and rear housings, and improve the safety of the battery pack. Attached Figure Description
[0015] Figure 1 This is a structural diagram of the snap-on power bank structure of this utility model. Figure 2 This is an exploded view of the snap-on power bank structure of this utility model. Figure 3 This is a structural diagram of the battery pack, front inner shell, separator, and circuit board assembly of this utility model. Figure 4 This is a structural diagram of the locking plate of this utility model. Figure 5 This is a structural diagram of the front shell of this utility model. Figure 6 This is a structural diagram of the rear shell of this utility model. Figure 7 This is a structural diagram of the base of this utility model. Figure 8 This is a structural diagram of the lower side of the base of this utility model.
[0016] Explanation of reference numerals in the attached figures: 10-Front outer shell, 11-Second screw post, 12-Screw, 13-Reinforcing block, 14-Power cord outlet, 15-Indicator light port, 20-Rear outer shell, 21-Card block, 22-First screw post, 23-Third screw post, 24-USB interface, 30-Base, 31-Hook, 32-First screw hole, 33-Screw, 34-Hanging hole, 40-Inner shell, 41-Second screw hole, 42-Through hole, 43-Card, 44-Front inner shell, 45-Rear inner shell, 50-Battery pack, 60-Circuit board assembly, 70-Locking plate, 71-Third screw hole, 72-Protrusion, 81-First reinforcing rib area, 82-Second reinforcing rib area, 83-Third reinforcing rib, 90-Breakthrough plate. Detailed Implementation
[0017] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. The embodiments are given for illustrative purposes only and should not be construed as limiting the utility model. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of this utility model, because many changes can be made to this utility model without departing from the spirit and scope of this utility model.
[0018] like Figures 1-8 As shown, the snap-on power bank structure includes a front outer shell 10, a rear outer shell 20, and a base 30 located below the front and rear outer shells 10 and 20. An inner shell 40 is located inside the front and rear outer shells 10 and 20, housing a battery pack 50. A circuit board assembly 60 is located on the rear side of the inner shell 40. The inner shell 40 is fixed to the interior of the front outer shell 10 by fasteners. A fastening mechanism is provided between the periphery of the inner shell 40 and the interior of the rear outer shell 20, used to close and lock the front and rear outer shells 10 and 20. The fastening mechanism has the advantages of facilitating the assembly, disassembly, and maintenance of the front and rear outer shells 10 and 20, and also making the product appear stylish and attractive without exposed screw holes.
[0019] Specifically, the base 30 has a pair of hooks 31 at each of its front and rear ends, which are respectively engaged with the corresponding latches 21 of the front shell 10 and the rear shell 20. The front shell 10 and the rear shell 20 have symmetrical and similar structures, and the overall shape is streamlined, stylish, without sharp edges, and has a good feel.
[0020] Specifically, the base 30 is also provided with four first screw holes 32, which match the first screw posts 22 of the front housing 10 and the rear housing 20, and the base 30 is fastened to the front housing 10 and the rear housing 20 by screws 33. The base 30 can lock the front housing 10 and the rear housing 20 and prevent them from coming apart.
[0021] Specifically, the base 30 has two symmetrical hanging holes 34 on its lower center, which can be used to hang the outer casing (including the front casing 10 and the rear casing 20) and its product (referring to the power bank) on the wall. The base 30 of this solution has the advantage of multiple usage methods, such as placing it on a desktop or hanging it on the wall.
[0022] Specifically, the inner shell 40 has a plurality of second screw holes 41 on its periphery, which match a plurality of second screw posts 11 inside the front outer shell 10, and the fasteners are screws 12. To improve structural strength, a reinforcing block 13 is provided between the second screw posts 11 and the front outer shell 10.
[0023] Specifically, the fastening mechanism includes multiple through holes 42 located around the inner shell 40 and clips 43 located on the sides of the through holes 42 and extending towards the front outer shell 10. It also includes multiple locking tabs 70 located inside the rear outer shell 20. The locking tabs 70 pass through the through holes 42 and engage with the clips 43. This fastening mechanism effectively solves the problem of eliminating the need for exposed screw holes in the front and rear outer shells, transforming the external fastening method into an internal fastening method.
[0024] Specifically, the locking piece 70 is L-shaped, with a third screw hole 71 on its shorter end and a protrusion 72 on its longer end. The third screw hole 71 is fixed to the third screw post 23 inside the rear outer shell 20 by a screw 33, and the protrusion 72 engages with the clip 43. Preferably, the locking piece 70 of this design is made of metal, which can achieve higher mechanical strength. Its L-shaped structure solves both the technical problems of fastening to the rear outer shell 20 and the snap-fitting with the inner shell 40 and the front outer shell 10 assembly. To improve structural strength, a reinforcing block 13 is provided between the third screw post 23 and the rear outer shell 20.
[0025] Specifically, the inner shell 40 includes a front inner shell 44 and a rear inner shell 45, with the periphery of the inner shell 40 located outside the edge connecting the front inner shell 44 and the rear inner shell 45. A set of through holes 42 and a set of second screw holes 41 are respectively provided at the connection between the front inner shell 44 and the rear inner shell 45. The two sets of through holes 42 and the two sets of second screw holes 41 are aligned and matched one-to-one. Multiple screws 12 serve the dual purpose of simultaneously fastening the front inner shell 44 and the rear inner shell 45, and also fastening the inner shell 40 to the front outer shell 10. This saves material costs and assembly time, and improves work efficiency. The second screw hole 41, located in the middle section of the inner shell 40, has the advantage of a stable center of gravity, which is extremely beneficial to the safety of the battery pack 50. Furthermore, for safety considerations, partitions 90 are provided on the front side of the front inner shell 44 and the rear side of the rear inner shell 45, serving as insulation and isolation functions.
[0026] Optionally, the rear casing 20 is provided with a USB interface 24, which matches the USB socket (not shown) on the circuit board assembly 60. This embodiment only shows the TYPE-C interface; various interfaces such as TYPE-A can be added according to different customer needs.
[0027] Optionally, the front housing 10 is provided with a power cord outlet 14 and an indicator light outlet 15. The indicator light outlet 15 is located on the front housing 10, which has the advantage of being convenient for the user to observe.
[0028] This design provides a first reinforcing rib area 81 and a second reinforcing rib area 82 at the front of the front housing 10 and the rear of the rear housing 20, respectively, and a third reinforcing rib 83 on the peripheral walls of the front housing 10 and the rear housing 20, thereby improving the mechanical strength and drop resistance of the front housing 10 and the rear housing 20, and enhancing the safety of the battery pack 50.
[0029] This solution has the following beneficial effects: This design features a snap-on power bank structure with no exposed screw holes on the front and rear outer shells (excluding the base). Multiple locking tabs, secured inside the rear shell, insert into multiple through-holes on the periphery of the inner shell of the front shell, which are then fastened with screws to engage with the card, enhancing the product's aesthetics. To further strengthen the connection between the front and rear shells, a base is included, reinforced with screws through four first screw holes on the base and two first screw posts on each of the front and rear shells. This base allows the power bank to be placed on a table or hung on a wall as needed. The second screw holes on the inner shell are spaced from the seam between the front and rear shells, ensuring the battery pack's fixation to the front shell is not affected by the seam or nearby external forces. Similarly, the engagement points of the multiple locking tabs and cards are spaced from the seam between the front and rear shells, ensuring the locking mechanism is not affected by the seam or nearby external forces. This design incorporates a reinforcing block between the second screw post and the front housing, enhancing the structural strength of the battery pack and circuit board assembly's fixation to the front housing. Similarly, a reinforcing block between the third screw post and the rear housing improves the connection strength between the rear and front housings. Furthermore, this design includes a first reinforcing rib area at the front of the front housing and a second reinforcing rib area at the rear of the rear housing, along with a third reinforcing rib on the peripheral walls of both the front and rear housings. These features enhance the mechanical strength and drop resistance of the front and rear housings, and improve the safety of the battery pack.
[0030] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A snap-on power bank structure, characterized in that: The device includes a front outer shell, a rear outer shell, and a base disposed on the lower side of the front and rear outer shells. An inner shell is provided inside the front and rear outer shells, and a battery pack is disposed inside the inner shell. A circuit board assembly is disposed on the rear side of the inner shell. The inner shell is fixed to the interior of the front outer shell by fasteners. A fastening mechanism is provided between the periphery of the inner shell and the interior of the rear outer shell. The fastening mechanism is used to close and lock the front and rear outer shells together.
2. The snap-on power bank structure according to claim 1, characterized in that: The base is provided with a pair of hooks at the front and rear ends, which are respectively engaged with the corresponding locking blocks of the front and rear outer shells.
3. The snap-on power bank structure according to claim 2, characterized in that: The base is also provided with four first screw holes, which match the first screw posts of the front and rear housings, and the base is fastened to the front and rear housings by screws.
4. The snap-on power bank structure according to claim 1, characterized in that: The base has two symmetrical hanging holes on the lower center, which can be used to hang the casing and its products on the wall.
5. The snap-on power bank structure according to claim 1, characterized in that: The inner shell has a plurality of second screw holes on its periphery, which match a plurality of second screw posts inside the front outer shell, and the fastener is a screw.
6. The snap-on power bank structure according to claim 1, characterized in that: The fastening mechanism includes multiple through holes on the periphery of the inner shell and a card on the edge of the through holes extending toward the front outer shell. It also includes multiple locking pieces inside the rear outer shell, and the locking pieces are inserted into the through holes and engage with the card.
7. The snap-on power bank structure according to claim 6, characterized in that: The locking plate is L-shaped, with a third screw hole on its shorter end and a protrusion on its longer end. The third screw hole is fixed to the third screw post inside the rear housing by a screw, and the protrusion engages with the card.
8. The snap-on power bank structure according to claim 1, characterized in that: The inner shell includes a front inner shell and a rear inner shell, with the periphery of the inner shell located outside the edge where the front and rear inner shells connect.
9. The snap-on power bank structure according to claim 1, characterized in that: The rear casing is equipped with a USB interface, which is matched with the USB socket on the circuit board assembly.
10. The snap-on power bank structure according to claim 1, characterized in that: The front casing is equipped with a power cord outlet and an indicator light port.