USB (Universal Serial Bus) charging module with anti-shaking elastic sheet and anti-fracture buckle
By introducing anti-shake springs and anti-breakage clips into the vehicle USB charging module, the problems of PCB board shaking and clip breakage have been solved, resulting in a more stable charging connection and improved module yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-27
AI Technical Summary
During the assembly process, the PCB board of the vehicle USB charging module may wobble due to tolerances, resulting in poor contact and unstable charging. At the same time, the clips are prone to breakage, increasing safety hazards.
It adopts an anti-shake spring and anti-breakage buckle design. The spring in the movable opening on the front shell squeezes the PCB board to increase friction. Combined with the reinforcing rib and the buckle post, it is integrally injection molded to limit the PCB board shaking and enhance the buckle strength.
It effectively prevents PCB board shaking, improves charging stability and module yield, avoids clip breakage, and reduces safety hazards.
Smart Images
Figure CN224053936U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to USB charging module technical field, specifically is a USB charging module with anti -shaking elastic sheet and anti -breakage buckle. BACKGROUND
[0002] In actual production, the vehicle-mounted USB charging module has tolerances in the front shell, the rear shell and the PCB board. For example, a vehicle-mounted USB charger is disclosed in patent CN222673943U. Such vehicle-mounted USB chargers may have random events during assembly, and may not be produced and manufactured according to the drawings. Shaking the USB charging module may cause the PCB board to shake up and down and left and right in the front shell and the rear shell, resulting in poor contact between the charging interface and the charging wire, and causing charging interruption, unstable charging and other situations, which may affect the charging efficiency. For example, when driving on some bumpy sections, the mobile phone and other devices may frequently disconnect and reconnect during charging.
[0003] In addition, such USB charging modules usually use buckles to connect the front shell and the rear shell. However, these buckles may break after long-term use or under external force. For example, when assembling the USB charging module, a large lateral force may be applied to the buckle; or in harsh environments such as high temperature, low temperature and impact vibration, the material performance of the buckle may decrease, resulting in a decrease in strength and thus breakage. After the buckle breaks, the structural stability of the charging module is affected, and the internal circuit is easily exposed, increasing the risk of short circuit, electric shock and other safety hazards. SUMMARY
[0004] The utility model aims at providing a USB charging module with anti-shaking elastic sheet and anti-breakage buckle to solve the problems raised in the background.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a USB charging module with anti-shaking elastic sheet and anti-breakage buckle, comprising a front shell provided with a clamping column and a rear shell provided with a clamping groove, a PCB board is installed in the cavity formed after the front shell and the rear shell are clamped, and further comprising a compression structure for preventing the PCB board from shaking and a reinforcing rib for preventing the clamping column from breaking.
[0006] As a further scheme of the utility model, the compression structure comprises a movable port opened on the front shell, and an elastic sheet is arranged in the movable port to extrude the PCB board and increase the friction force on both sides of the PCB board.
[0007] As a further scheme of the utility model, an anti-slip part is arranged on the side of the elastic sheet away from the movable port.
[0008] As a further scheme of the utility model, the reinforcing rib and the clamping column are integrally injection molded.
[0009] As a further scheme of the utility model, the reinforcing plates are fixed between every two clamping columns.
[0010] As a further scheme of the utility model, the number of the pressing structures is k, k=2*n, wherein n>0 and n is a natural number.
[0011] Compared with the prior art, the utility model has the beneficial effects that: the utility model restricts the shaking of the PCB by setting the pressing structure, and in addition, the reinforcing ribs are set to prevent the clamping column from breaking, to improve the yield of the USB charging module during assembly, and to overcome the problem that the clamping buckle is prone to breaking during long-term use or under external force. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is an explosion structure schematic view of the utility model;
[0013] Figure 2 is a front shell structure schematic view of the utility model;
[0014] Figure 3 is a PCB structure schematic view of the utility model;
[0015] Figure 4 is a rear shell structure schematic view of the utility model.
[0016] The reference signs are as follows:
[0017] 1, front shell; 1-1, clamping column; 1-2, reinforcing plate; 1-3, spring piece; 1-4, movable port; 1-5, front shell opening; 1-6, reinforcing rib; 1-7, anti-skid part; 2, rear shell; 2-1, rear shell clamping port; 2-2, buckling groove; 3, PCB; 3-1, electricity connection end; 3-2, charging end. DETAILED DESCRIPTION
[0018] Please refer to Figures 1-4The utility model provides a technical scheme: a USB charging module with anti-shaking elastic sheet and anti-fracture buckle, including the front shell 1 provided with the card post 1-1 and the rear shell 2 provided with the buckle slot 2-2, generally, the number of card post 1-1 is same with the number of buckle slot 2-2 and all is four, four card posts 1-1 are located on the four corner positions of card post 1-1 side respectively, four buckle slots 2-2 are located on the corresponding positions of rear shell 2 respectively, after the sealed butt joint of front shell 1 and rear shell 2 is completed, four card posts 1-1 respectively extend into four buckle slots 2-2 and complete the position locking of front shell 1 and rear shell 2, the cavity formed after the butt joint of front shell 1 and rear shell 2 is installed with PCB board 3, PCB board 3 is provided with electricity connection end 3-1 and charging end 3-2, electricity connection end 3-1 is used for connecting the automobile circuit and exports by charging end 3-2 after the processing of power through PCB board 3, can charge service to mobile phone etc., PCB board 3, electricity connection end 3-1 and charging end 3-2 all are prior art, do not make detailed description to the specific setting, in the assembling process, place electricity connection end 3-1 in front shell opening 1-5, charging end 3-2 is aligned in rear shell bayonet 2-1, finally combine front shell 1 and rear shell 2 and complete the assembly of entire charging module, still include the compression structure for preventing PCB board 3 from producing the shaking and the reinforcing rib 1-6 for preventing card post 1-1 from fracturing, reinforcing rib 1-6 is integrally injection molded with card post 1-1, the vehicle-mounted USB charging module in actual production, because the front shell 1, rear shell 2 and PCB board 3 board all have tolerance, the vehicle-mounted USB charger will appear random event when assembling, production and manufacture do not reach the drawing requirement completely, the shaking USB charging module will appear that PCB board 3 shakes up and down and left and right in front shell 1 and rear shell 2, lead to the poor contact between charging end 3-2 and charging wire, appear charging interruption, charging instability and so on, limit PCB board 3 shaking through the setting compression structure, optimize product performance, in addition setting reinforcing rib 1-6, can prevent card post 1-1 from fracturing, can improve the yield of USB charging module when assembling, also can overcome the problem that the buckle is easy to fracture when being used for a long time or being subjected to external force, the reinforcing plate 1-2 is fixed between two card posts 1-1, the reinforcing plate 1-2 can support the side of the card post 1-1 which is relatively long, avoid the card post 1-1 from fracturing.
[0019] The compression structure includes the movable port 1-4 opened on the front shell 1, and the elastic sheet 1-3 is arranged in the movable port 1-4 to extrude the PCB board 3 and increase the friction force of the two sides of the PCB board 3.
[0020] When the front shell 1 and the rear shell 2 are locked, the elastic sheet 1-3 in the movable port 1-4 extrudes one side of the PCB board 3 to increase the normal pressure of the side of the PCB board 3 in contact with the inner wall of the rear shell 2 and the side in contact with the elastic sheet 1-3, so that the position of the PCB board 3 is limited by the great friction force, and the PCB board 3 cannot shake.
[0021] The number of the pressing structures is k, k = 2*n, where n > 0 and n is a natural number, and the plurality of pressing structures can be symmetrically distributed on the front shell 1. The plurality of symmetric pressing structures can press the PCB 3, on one hand, the pressing force is more uniform, the PCB 3 is not easy to deviate, on the other hand, the positive pressure on the PCB 3 is larger, and the limiting effect is better.
[0022] The side of the elastic sheet 1-3 away from the movable port 1-4 is provided with an anti-skid part 1-7, wherein the anti-skid part 1-7 can be a fixed connection of an anti-skid pad (rubber pad, etc.) on the elastic sheet 1-3, or the anti-skid part 1-7 can be a frosted treatment on the contact surface of the elastic sheet 1-3 and the PCB 3. The anti-skid part 1-7 further improves the friction between the side of the PCB 3 in contact with the inner wall of the rear shell 2 and the side in contact with the elastic sheet 1-3, so that the elastic sheet 1-3 has a better limiting effect on the PCB 3.
Claims
1. A USB charging module with anti-shake spring and anti-breakage buckle, comprising a front shell (1) with a locking post (1-1) and a rear shell (2) with a buckle groove (2-2), wherein a PCB board (3) is installed in the cavity formed after the front shell (1) and the rear shell (2) are fastened together, characterized in that: It also includes a clamping structure to prevent the PCB board (3) from shaking and a reinforcing rib (1-6) to prevent the pin (1-1) from breaking.
2. A USB charging module with an anti-shake spring and an anti-breakage buckle according to claim 1, characterized in that: The pressing structure includes an opening (1-4) on the front shell (1), and a spring piece (1-3) is provided in the opening (1-4) for squeezing the PCB board (3) to increase the friction on both sides of the PCB board (3).
3. A USB charging module with an anti-shake spring and an anti-breakage buckle according to claim 2, characterized in that: The side of the spring piece (1-3) away from the movable opening (1-4) is provided with an anti-slip part (1-7).
4. A USB charging module with an anti-shake spring and an anti-breakage buckle according to claim 1, characterized in that: The reinforcing ribs (1-6) and the retaining posts (1-1) are integrally injection molded.
5. A USB charging module with an anti-shake spring and an anti-breakage buckle according to any one of claims 1-4, characterized in that: A reinforcing plate (1-2) is fixed between each pair of the aforementioned pins (1-1).
6. A USB charging module with an anti-shake spring and an anti-breakage buckle according to claim 1, characterized in that: The number of the clamping structures is k, k = 2*n, where n > 0 and n is a natural number.