DC-DC converter capable of preventing contact breakage by external force
By introducing elastic anti-slip blocks, U-shaped support rods, and a double-layer housing structure into the DC-DC converter, combined with a heat dissipation fan and mesh cover design, the problem of circuit disconnection caused by external forces in the DC-DC converter is solved, achieving higher mechanical protection and power conversion stability and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI JUYI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-24
AI Technical Summary
Existing DC-DC converters designed to prevent circuit breakage due to external forces are insufficient in terms of mechanical protection. They cannot effectively prevent circuit breakage caused by external impacts, vibrations, or pulling, resulting in poor stability and reliability of power conversion.
It adopts an elastic anti-slip block, sealing cover, U-shaped support rod and double shell structure, combined with heat dissipation fan and mesh cover design to enhance mechanical protection performance, prevent circuit disconnection, and fix the power cord with elastic wire sleeve to ensure the stability and reliability of power conversion.
It effectively prevents circuit disconnection caused by external impact, vibration or pulling, improves the mechanical protection performance of DC-DC converter and the stability and reliability of power conversion, and enhances heat dissipation efficiency.
Smart Images

Figure CN224555457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of DC-DC converter technology, and specifically to a DC-DC converter that is resistant to external force-induced disconnection. Background Technology
[0002] A DC-DC converter, or direct-to-current converter, is an electronic device that converts direct-current (DC) power from one voltage level to another. For example, it can convert 5.0V DC voltage to 1.5V or 12.0V DC voltage, and is therefore also called a switching power supply or switching regulator. A DC-DC converter typically consists of components such as a control chip, inductor, diode, transistor, and capacitor.
[0003] Existing DC-DC converters designed to prevent external force-induced circuit breakage do not enhance mechanical protection and cannot prevent circuit breakage caused by external impacts, vibrations, or pulling. As a result, the stability and reliability of power conversion are poor. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a DC-DC converter that is protected against external force-induced circuit breakage. The DC-DC converter enhances mechanical protection performance and can prevent circuit breakage caused by external impacts, vibrations, or pulling, thus ensuring the stability and reliability of power conversion.
[0005] The technical solution adopted by this utility model to solve its technical problem is a DC-DC converter that is protected against external force disconnection, including an elastic anti-slip block, a sealing cover, a shell, a U-shaped support rod and a DC-DC converter body. An inner shell is provided inside the shell and a hollow interlayer is provided between the inner shell and the shell. The DC-DC converter body is installed inside the inner shell. A wire guide tube is provided at equal intervals at one end of the shell and the wire guide tube is connected to the inner shell. An elastic wire sleeve is installed inside the wire guide tube and a wire clamping bolt is installed on the top of the wire guide tube through a screw hole.
[0006] The bottom of the outer shell is fitted with a bottom cover and the bottom cover is connected to the inner shell. The bottom of the bottom cover is provided with an air inlet and a cooling fan is installed in the air inlet by bolts. The top of the outer shell is fitted with a sealing cover.
[0007] By adopting the above technical solutions, the DC-DC converter enhances its mechanical protection performance, preventing circuit disconnection caused by external impacts, vibrations, or pulling, and ensuring the stability and reliability of power conversion.
[0008] Specifically, the bottom ends of the outer casing are fitted with U-shaped support rods by screws, and elastic anti-slip blocks are glued to the bottom ends of the U-shaped support rods.
[0009] By adopting the above technical solution, the U-shaped support rod provides stable support, and the elastic anti-slip block provides anti-slip effect, making it corrosion-resistant and durable.
[0010] Specifically, the bottom periphery of the sealing cap is provided with an embedding block, and the embedding block is located inside the hollow interlayer.
[0011] Specifically, the other end of the housing has a heat dissipation hole, and one end of the DC-DC converter body has terminals arranged at equal intervals.
[0012] By adopting the above technical solution, both the power output and input lines are passed through the elastic wire sleeve into the inner casing and connected to the terminals of the DC-DC converter body.
[0013] Specifically, a mesh cover is installed at the bottom of the air inlet using screws.
[0014] Specifically, both the elastic anti-slip block and the elastic cord sleeve are made of silicone rubber.
[0015] The beneficial effects of this utility model are:
[0016] (1) The DC-DC converter with anti-interference protection described in this utility model has both the power output and input lines passing through the elastic wire sleeve into the inner shell and connected to the terminals of the DC-DC converter body. The DC-DC converter body is an electronic device that converts DC power from one voltage level to another. The power output and input lines are pressed into the elastic wire sleeve by the wire clamping bolt. The double protection of the inner shell and the outer shell enhances the mechanical protection performance of the DC-DC converter body while providing voltage conversion function.
[0017] (2) The DC-DC converter with anti-interference protection described in this utility model can prevent circuit disconnection caused by external impact, vibration or pulling, and ensure the stability and reliability of power conversion. It uses a cooling fan to blow outside air into the inner shell to improve the heat dissipation rate of the DC-DC converter body. It uses a mesh cover to filter dust in the gas and effectively protect the cooling fan. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the bottom structure of the outer shell of this utility model;
[0021] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model;
[0022] Figure 4 This is a schematic diagram of the heat dissipation hole structure of this utility model.
[0023] In the diagram: 1. Sealing cap; 2. Embedded block; 3. Outer shell; 4. Wire clamping bolt; 5. Elastic wire sleeve; 6. Conduit; 7. Elastic anti-slip block; 8. U-shaped support rod; 9. Bottom cover; 10. Air inlet; 11. Cooling fan; 12. Mesh cover; DC-13. DC converter body; 14. Terminal block; 15. Inner shell; 16. Hollow interlayer; 17. Heat dissipation hole. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] To enhance the mechanical protection performance of the DC-DC converter, it is designed to prevent circuit disconnection caused by external impacts, vibrations, or pulling, ensuring the stability and reliability of power conversion. Figure 1-4 As shown, the present invention discloses a DC-DC converter with anti-interference mechanism against external force disconnection, comprising an elastic anti-slip block 7, a sealing cover 1, a housing 3, a U-shaped support rod 8, and a DC-DC converter body 13. An inner shell 15 is provided inside the housing 3, and a hollow interlayer 16 is provided between the inner shell 15 and the housing 3. The DC-DC converter body 13 is housed inside the inner shell 15. A conduit 6 is provided at equal intervals at one end of the housing 3 and is connected to the inner shell 15. An elastic wire sleeve 5 is housed inside the conduit 6, and a wire clamping bolt 4 is installed on the top of the conduit 6 through a screw hole.
[0026] The bottom of the outer shell 3 is fitted with a bottom cover 9 and the bottom cover 9 is connected to the inner shell 15. The bottom of the bottom cover 9 is provided with an air inlet 10 and a cooling fan 11 is installed in the air inlet 10 by bolts. The top of the outer shell 3 is fitted with a sealing cover 1.
[0027] When in use, the DC-DC converter has enhanced mechanical protection performance, which can prevent circuit disconnection problems caused by external impact, vibration or pulling, and ensure the stability and reliability of power conversion.
[0028] For example, such as Figure 1 As shown, the present invention also includes U-shaped support rods 8 installed at both ends of the bottom of the outer shell 3 by screws, and elastic anti-slip blocks 7 are glued to both ends of the bottom of the U-shaped support rods 8.
[0029] During use, the U-shaped support rod 8 provides stable support, while the elastic anti-slip block 7 provides anti-slip properties. It is corrosion-resistant and durable.
[0030] For example, such as Figure 1 , 3 As shown, the present invention also includes an embedded block 2 disposed on the bottom periphery of the sealing cover 1 and the embedded block 2 is located in the hollow interlayer 16.
[0031] When in use, the embedded block 2 is located inside the hollow interlayer 16 to facilitate the installation and removal of the sealing cover 1.
[0032] For example, such as Figure 1 , 3 As shown in Figures 4 and 5, this utility model also includes a heat dissipation hole 17 at the other end of the outer shell 3, and wiring terminals 14 are provided at equal intervals at one end of the DC-DC converter body 13.
[0033] In use, both the power output and input lines are passed through the elastic cable sleeve 5 into the inner housing 15 and connected to the terminals 14 of the DC-DC converter body 13.
[0034] For example, such as Figure 1 , 2 As shown, the present invention also includes a mesh cover 12 installed at the bottom of the air inlet 10 by screws.
[0035] When in use, the mesh cover 12 filters the dust in the gas, effectively protecting the cooling fan 11.
[0036] For example, such as Figure 1 As shown, the present invention also includes that the elastic anti-slip block 7 and the elastic cord sleeve 5 are both made of silicone rubber.
[0037] When in use, silicone rubber material has high elasticity, good toughness, corrosion resistance, is not easily damaged, and is durable.
[0038] In use, the power output and input lines pass through the elastic wire sleeve 5 into the inner shell 15 and are connected to the terminal 14 of the DC-DC converter body 13. The DC-DC converter body 13 is used to convert DC power from one voltage level to another.
[0039] The power output and input lines are pressed into the elastic wire sleeve 5 by the wire clamping bolt 4. The double protection of the inner sleeve 15 and the outer sleeve 3 enhances the mechanical protection performance of the DC-DC converter body 13 while having the voltage conversion function. It can prevent circuit disconnection caused by external impact, vibration or pulling, and ensure the stability and reliability of power conversion.
[0040] The cooling fan 11 blows outside air into the inner casing 15, improving the heat dissipation rate of the DC-DC converter body 13. The mesh cover 12 filters dust in the air, effectively protecting the cooling fan 11.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A DC-DC converter resistant to external force disconnection, characterized in that, The device includes an elastic anti-slip block (7), a sealing cover (1), an outer shell (3), a U-shaped support rod (8), and a DC-DC converter body (13). An inner shell (15) is provided inside the outer shell (3), and a hollow interlayer (16) is provided between the inner shell (15) and the outer shell (3). The DC-DC converter body (13) is installed inside the inner shell (15). A conduit (6) is provided at equal intervals at one end of the outer shell (3), and the conduit (6) is connected to the inner shell (15). An elastic wire sleeve (5) is installed inside the conduit (6), and a wire clamping bolt (4) is installed on the top of the conduit (6) through a screw hole. The bottom of the outer shell (3) is fitted with a bottom cover (9) and the bottom cover (9) is connected to the inner shell (15). The bottom of the bottom cover (9) is provided with an air inlet (10) and a cooling fan (11) is installed in the air inlet (10) by bolts. The top of the outer shell (3) is fitted with a sealing cover (1).
2. A DC-DC converter resistant to external force disconnection according to claim 1, characterized in that, The bottom ends of the outer shell (3) are fitted with U-shaped support rods (8) by screws, and elastic anti-slip blocks (7) are glued to the bottom ends of the U-shaped support rods (8).
3. A DC-DC converter resistant to external force disconnection according to claim 1, characterized in that, An embedding block (2) is provided on the bottom periphery of the sealing cover (1), and the embedding block (2) is located in the hollow interlayer (16).
4. A DC-DC converter resistant to external force disconnection according to claim 1, characterized in that, The other end of the housing (3) is provided with a heat dissipation hole (17), and one end of the DC-DC converter body (13) is provided with terminals (14) at equal intervals.
5. A DC-DC converter resistant to external force disconnection according to claim 1, characterized in that, The bottom of the air inlet (10) is fitted with a mesh cover (12) by screws.
6. A DC-DC converter resistant to external force disconnection according to claim 1, characterized in that, Both the elastic anti-slip block (7) and the elastic cord sleeve (5) are made of silicone rubber.