Dual-structure safety mobile power supply structure device
By employing a dual-structure design and multiple sets of locking rings, the problem of the power bank's outer shell cracking and locking rings falling off when dropped is solved, thus improving the power bank's safety and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JINGAO SCI & TECH CO LTD
- Filing Date
- 2025-08-23
- Publication Date
- 2026-07-24
AI Technical Summary
Existing power banks are prone to cracking when dropped, exposing the internal battery and posing a risk of battery puncture and fire. In addition, the existing buckle structure has gaps during installation and cannot effectively protect the battery.
It adopts a dual-structure design, including an upper cover and a lower cover. The outer shell has an inverted buckle structure, and multiple sets of buckles and retaining rings are set between the upper and lower covers to ensure that the outer shell will not crack and the buckles will not fall off in the event of a drop. The retaining rings provide enhanced protection.
It effectively prevents the power bank's casing from cracking and the clips from breaking when it is dropped, ensuring that the battery is not exposed and providing more comprehensive protection to prevent the battery from being punctured and catching fire.
Smart Images

Figure CN224555252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile power technology, and in particular to a dual-structure safety mobile power supply device. Background Technology
[0002] With the rapid development of modern communication and internet technologies, smartphones, as communication terminals and an important part of the mobile internet, play a vital role in modern life. The increasing complexity of smartphone hardware and software applications has placed higher demands on the battery life of smartphones. However, current smartphones typically have short standby times, making power banks an essential backup power source for mobile phones.
[0003] However, as a portable and external device, power banks are usually placed in a bag or pocket when not in use. When taking out other items, the power bank may fall out, causing damage to the power bank's outer shell or its clips to come loose, exposing the internal battery. At the same time, when in use, since you need to hold both the device and the power bank at the same time, the power bank may also fall out when the data cable is pulled.
[0004] The prior art CN104659831A discloses a drop-proof mobile phone power bank. The device provides a drop-proof mobile phone power bank including a shell, and a protective shell is provided on the outside of the shell. Shock-absorbing springs are installed between the top and bottom surfaces of the shell and the top and bottom surfaces of the protective shell.
[0005] Although the aforementioned device proposes to add a protective shell to the outside of the housing, there is no snap-fit structure between the housing and the protective shell. When dropped, it is easy to be thrown out, causing damage to the housing and exposing the internal battery. At the same time, the spring inside causes a large gap between the housing and the protective shell during installation, which cannot provide better protection for the battery inside the power bank.
[0006] Based on the above problems, this utility model proposes a dual-structure safety mobile power bank device, which can solve the problem that when a power bank is dropped, the outer shell cracks and exposes the internal battery, causing the battery to be punctured and catch fire. Utility Model Content
[0007] To address the aforementioned issues, this invention proposes a dual-structure safety mobile power bank device. This structure can resolve the problem of the power bank's outer casing cracking and exposing the internal battery when dropped, leading to battery puncture and fire.
[0008] To solve the above problems, the technical solution of this utility model is as follows: This utility model discloses a dual-structure safety mobile power supply device, including an upper cover, a lower cover, a battery cell, and a circuit board. The upper cover and the lower cover are interlocked, forming a cavity inside. The battery cell is disposed at one end of the cavity, and the circuit board is disposed at the other end of the cavity. The upper cover and the lower cover with the battery cell are covered by an outer shell. The opening end of the outer shell is provided with an inverted buckle structure, which is fastened to the corresponding position of the upper cover and the lower cover.
[0009] Furthermore, the circuit board is provided with an output terminal and an input terminal; the upper cover and lower cover are provided with openings at the corresponding positions of the output terminal and the input terminal.
[0010] Furthermore, the circuit board is equipped with a display screen and a power switch. The display screen faces the upper cover, and the upper cover has an opening at the corresponding part of the display screen. The power switch is located on one side of the circuit board, and the upper cover and lower cover have openings at the corresponding parts of the power switch.
[0011] Furthermore, a lens is provided at the opening corresponding to the display screen on the top cover, and the lens is snapped onto the top cover.
[0012] Furthermore, the upper and lower covers are equipped with start buttons at the openings corresponding to the start switch. The start buttons are fixed by the fastening between the upper and lower covers, and one end contacts the start switch.
[0013] Furthermore, the upper and lower covers are also provided with annular buckles and baffles, and the battery cell is fixed in the cavity by the annular buckles and baffles.
[0014] Furthermore, the upper and lower covers are also provided with a first buckle, and the upper and lower covers are fastened together by the first buckle.
[0015] Furthermore, the upper and lower covers are provided with second buckles, and the circuit board is fixed in the cavity by the second buckles, with the second buckles on the upper and lower covers engaging with each other.
[0016] Furthermore, the upper and lower covers are also provided with fixing rings, which are fitted onto the upper and lower covers.
[0017] Furthermore, the portions of the upper and lower covers that fit inside the outer shell are recessed, with the recess height being consistent with the thickness of the outer shell.
[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This utility model provides an additional outer shell outside the top and bottom covers to prevent the built-in battery cells from being exposed when the power bank is dropped due to the shell cracking. At the same time, the outer shell can prevent the battery cells from being exposed due to damage to the buckles.
[0019] 2. This utility model has a fixing ring on the upper and lower covers to further protect the device. Even if the outer shell cracks or the internal buckle is damaged when it is dropped, the fixing ring can still prevent the upper and lower covers from falling off the battery cell.
[0020] 3. The outer shell of this utility model has a certain curvature, which can effectively avoid direct puncture of the battery inside the power bank under special circumstances. At the same time, the double-layer shell design can better prevent such problems from occurring. Attached Figure Description
[0021] Figure 1 This is an exploded view of a dual-structure safety mobile power supply device according to the present invention. Figure 2 This is a schematic diagram of the circuit board structure of this utility model; Figure 3 This is a schematic diagram of the lower cover structure of this utility model.
[0022] Legend: 1. Lens; 2. Top cover; 3. Circuit board; 3-1. Output terminal; 3-2. Input terminal; 3-3. Display screen; 3-4. Power switch; 4. Battery cell; 5. Power button; 6. Bottom cover; 6-1. Ring buckle; 6-2. First buckle; 6-3. Second buckle; 6-4. Baffle; 7. Retaining ring; 8. Outer shell. Detailed Implementation
[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings: Example 1
[0026] like Figure 1 As shown: This utility model discloses a dual-structure safety mobile power supply device, including an upper cover 2, a lower cover 6, a circuit board 3, a battery cell 4, and a shell 8; the upper cover 2 and the lower cover 6 are fixed by multiple sets of buckles, forming a cavity inside, the battery cell 4 is disposed at one end of the cavity, the circuit board 3 is installed at the other end of the cavity, and the shell 8 is fitted onto the end of the upper cover 2 and the lower cover 6 where the battery cell 4 is installed.
[0027] The inner walls of the upper cover 2 and the lower cover 6 are each provided with 3 sets of annular buckles 6-1, which can fix the battery cell 4 in the cavity inside. At the same time, the inner walls of the upper cover 2 and the lower cover 6 are also provided with baffles 6-4 to prevent the battery cell 4 from moving. The interaction between the annular buckles 6-1 and the baffles 6-4 can prevent the battery cell 4 from moving inside the device.
[0028] Both the upper cover 2 and the lower cover 6 are provided with a second buckle 6-3, which fastens the upper cover 2 and the lower cover 6 together; at the same time, the inner walls of the upper cover 2 and the lower cover 6 are also provided with a first buckle 6-2. The first buckle 6-2 can not only fix the circuit board 3, but also the first buckles 6-2 on the upper cover 2 and the lower cover 6 can fasten to each other, strengthening the fixation between the upper cover 2 and the lower cover 6.
[0029] The upper cover 2 and the lower cover 6 are also provided with an outer shell 8. The outer shell 8 is integrally formed and has an open end and a closed end. The open end is provided with an inverted buckle structure. At the same time, the outer walls of the upper cover 2 and the lower cover 6 are provided with corresponding buckles to fasten the upper cover 2, the lower cover 6 and the outer shell 8 together and lock them completely.
[0030] The circuit board 3 is provided with an output terminal 3-1 and an input terminal 3-2; the output terminal 3-1 is used to release the power inside the battery cell 4 to charge external devices, and the input terminal 3-2 is used to charge the battery cell 4; the upper cover 2 and the lower cover 6 are provided with openings corresponding to the output terminal 3-1 and the input terminal 3-2. Example 2
[0031] A dual-structure safety mobile power supply device includes an upper cover 2, a lower cover 6, a circuit board 3, a battery cell 4, and a housing 8. The upper cover 2 and the lower cover 6 are fixed by multiple sets of buckles, forming a cavity inside. The battery cell 4 is disposed at one end of the cavity, and the circuit board 3 is installed at the other end of the cavity. The housing 8 is fitted onto the end of the upper cover 2 and the lower cover 6 where the battery cell 4 is installed.
[0032] The inner walls of the upper cover 2 and the lower cover 6 are each provided with 3 sets of annular buckles 6-1, which can fix the battery cell 4 in the cavity inside. At the same time, the inner walls of the upper cover 2 and the lower cover 6 are also provided with baffles 6-4 to prevent the battery cell 4 from moving. The interaction between the annular buckles 6-1 and the baffles 6-4 can prevent the battery cell 4 from moving inside the device.
[0033] Both the upper cover 2 and the lower cover 6 are provided with a second buckle 6-3, which fastens the upper cover 2 and the lower cover 6 together; at the same time, the inner walls of the upper cover 2 and the lower cover 6 are also provided with a first buckle 6-2. The first buckle 6-2 can not only fix the circuit board 3, but also the first buckles 6-2 on the upper cover 2 and the lower cover 6 can fasten to each other, strengthening the fixation between the upper cover 2 and the lower cover 6.
[0034] The upper cover 2 and the lower cover 6 are also provided with an outer shell 8. The outer shell 8 is integrally formed and has an open end and a closed end. The open end is provided with an inverted buckle structure. At the same time, the outer walls of the upper cover 2 and the lower cover 6 are provided with corresponding buckles to fasten the upper cover 2, the lower cover 6 and the outer shell 8 together and lock them completely.
[0035] The circuit board 3 is provided with an output terminal 3-1 and an input terminal 3-2; the output terminal 3-1 is used to release the power inside the battery cell 4 to charge external devices, and the input terminal 3-2 is used to charge the battery cell 4; the upper cover 2 and the lower cover 6 are provided with openings corresponding to the output terminal 3-1 and the input terminal 3-2.
[0036] The circuit board 3 is also provided with a display screen 3-2 and a start switch 3-4. The display screen 3-2 faces the upper cover 2. The upper cover 2 and the display screen 3-2 have openings at corresponding positions. A lens 1 is provided in the openings. The start switch 3-4 is located at one end of the circuit board 3, on both sides of the upper cover 2 and the lower cover 6. The upper cover 2 and the lower cover 6 have corresponding openings. A start button 5 is provided at the opening. The start button 5 is snapped between the upper cover 2 and the lower cover 6, and one end contacts the start switch 3-4.
[0037] The upper cover 2 and lower cover 6 are recessed into the outer shell 8. When the outer shell 8 is fitted in, its height matches the remaining part, thus preventing the outer shell 8 from protruding and falling off during use.
[0038] The upper cover 2 and the lower cover 6 are also provided with a fixing ring 7, which is sleeved on the upper cover 2 and the lower cover 6 to strengthen the fastening between the upper cover 2 and the lower cover 6.
[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A dual-structure safety mobile power bank device, comprising an upper cover, a lower cover, a battery cell, and a circuit board, wherein the upper cover and the lower cover are interlocked, forming a cavity inside the cavity, the battery cell is disposed at one end of the cavity, and the circuit board is disposed at the other end of the cavity, characterized in that: The upper and lower covers have an outer shell covering one end of the battery cell. The open end of the outer shell has an inverted buckle structure that is fastened to the corresponding position of the upper and lower covers.
2. The dual-structure safe mobile power supply device according to claim 1, characterized in that: The circuit board is provided with an output terminal and an input terminal; the upper cover and lower cover are provided with openings at the corresponding positions of the output terminal and the input terminal.
3. The dual-structure safe mobile power supply device according to claim 2, characterized in that: The circuit board is equipped with a display screen and a power switch. The display screen faces the upper cover, and the upper cover has an opening at the corresponding part of the display screen. The power switch is located on one side of the circuit board, and the upper cover and lower cover have openings at the corresponding parts of the power switch.
4. The dual-structure safe mobile power supply device according to claim 3, characterized in that: The upper cover has a lens at the opening corresponding to the display screen, and the lens is snapped onto the upper cover.
5. The dual-structure safe mobile power supply device according to claim 3, characterized in that: The upper and lower covers are equipped with start buttons at the openings corresponding to the start switch. The start buttons are fixed by the fastening between the upper and lower covers, and one end contacts the start switch.
6. The dual-structure safe mobile power supply device according to claim 1, characterized in that: The upper and lower covers are also provided with annular buckles and baffles, and the battery cell is fixed in the cavity by the annular buckles and baffles.
7. The dual-structure safe mobile power supply device according to claim 1, characterized in that: The upper and lower covers are also provided with a first buckle, and the upper and lower covers are fastened together by the first buckle.
8. The dual-structure safe mobile power supply device according to claim 1, characterized in that: The upper and lower covers are provided with second buckles, and the circuit board is fixed in the cavity by the second buckles. The second buckles on the upper and lower covers are interlocked.
9. The dual-structure safe mobile power supply device according to claim 1, characterized in that: The upper and lower covers are also provided with fixing rings, which are fitted onto the upper and lower covers.
10. A dual-structure safe mobile power supply device according to claim 1, characterized in that: The portions of the upper and lower covers that fit inside the outer shell are recessed, with the recess height matching the thickness of the outer shell.