Vehicle-mounted multifunctional DC-to-DC charger
By incorporating protective components in the vehicle-mounted DC to DC charger, and using rubber pads and U-shaped clamps to seal and secure the plug and interface, the instability and safety issues caused by dust ingress are resolved, thus improving stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN TENGSHUN POWER SUPPLY CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-15
AI Technical Summary
Existing vehicle DC to DC chargers lack effective sealing measures after the plug and interface are connected, which makes it easy for dust to enter, affecting connection stability and safety.
A protective component was designed, including a rubber pad, a cover plate, a U-shaped clamp, and a mounting frame. The rubber pad seals the gap between the plug and the interface, and the U-shaped clamp fixes the cover plate to ensure the stability and sealing of the plug connection.
It effectively prevents dust from entering the gap between the plug and the interface, improves the stability and safety of the connection, ensures that the plug is not easy to loosen, and has a simple structure and is easy to operate.
Smart Images

Figure CN224249407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle-mounted equipment technology, and in particular to a vehicle-mounted multi-functional DC to DC charger. Background Technology
[0002] A new energy vehicle DC-DC converter integrated charger with application number CN202122742421.X includes a housing and heat sinks. Several heat sinks are provided. A fan is installed on the housing to work with the heat sinks. A cooling mechanism is also installed on the housing to further cool the heat sinks. In this invention, the cooling mechanism uses cooling fluid to cool the heat sinks through cooling pipes, achieving further cooling of the heat sinks in addition to existing air cooling. The cooling pipes can also be cooled through heat-conducting plates, which further cool the heat sinks, increasing the cooling area of the cooling mechanism. Furthermore, by sliding several cooling pipes to areas of concentrated heat, concentrated cooling is achieved in these areas, further improving the heat dissipation efficiency of the heat sinks.
[0003] While the aforementioned technologies can effectively improve the stability of plug connections, they lack effective sealing measures for the gap between the plug and the interface after they are inserted. Over long-term use, dust can easily penetrate into the tiny gaps between the plug and the interface. The accumulation of dust not only gradually erodes the contact surface, leading to poor contact and weakening connection stability, but in severe cases, dust can also become a conductive medium, inducing short circuits and threatening circuit safety, thus reducing security. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a vehicle-mounted multi-functional DC-to-DC charger.
[0005] An embodiment of this utility model provides a vehicle-mounted multi-functional DC-to-DC charger, comprising:
[0006] The body has an interface on one side, and a plug is connected to the interface;
[0007] The protective assembly includes a mounting frame, a cover plate, a rubber pad, and a U-shaped clamp. The mounting frame is fixedly installed on one side of the machine body. A hinge is fixedly installed at one end of the cover plate, and the other end of the hinge is fixedly installed on the mounting frame. The rubber pad is fixedly installed inside the cover plate, and the two ends of the U-shaped clamp are rotatably connected to both sides of the mounting frame.
[0008] Furthermore, a number of heat dissipation fins are fixedly installed on the body, and a cooling fan is fixedly installed on the heat dissipation fins.
[0009] Furthermore, a limiting hole is provided through the cover plate, and the limiting hole extends through one end of the cover plate.
[0010] Furthermore, a through hole is provided through the rubber pad, and a through-line slit is provided at one end of the through hole penetrating the rubber pad.
[0011] Furthermore, the cover plate is provided with a slot, and the U-shaped clamp is configured to cooperate with the slot.
[0012] Furthermore, a protective mesh is fixedly installed on the cooling fan.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. A rubber pad is installed. After the plug and interface are connected, the wire is inserted into the through hole through the wire seam, and then the cover plate is put on. The rubber pad is used to press the plug tightly and make the rubber pad abut against the inside of the mounting frame to seal the plug, preventing dust from entering the gap between the plug and the interface, thus improving the stability and safety of operation.
[0015] 2. A U-shaped clamp is provided. After the cover plate is closed, the U-shaped clamp is bent upwards and inserted into the slot to fix the cover plate, thus preventing the plug from loosening. The structure is simple, easy to operate, and more secure, ensuring the stability of the plug connection.
[0016] In summary, this utility model incorporates protective components to ensure the stability of the plug connection while preventing dust from entering the gap, thus improving stability and safety. It also features a U-shaped clamp, which is simple in structure and easy to operate, preventing the plug from loosening and ensuring the stability of the plug connection. Attached Figure Description
[0017] Figure 1 This is a perspective view of a vehicle-mounted multi-functional DC-to-DC charger as described in an embodiment of this utility model.
[0018] Figure 2 This is a diagram showing the state of a vehicle-mounted multi-functional DC-to-DC charger when plugged in, as described in this embodiment of the present invention.
[0019] Figure 3 This is a perspective view of the protective components in a vehicle-mounted multi-functional DC-to-DC charger as described in an embodiment of this utility model.
[0020] Figure 4 This is a diagram showing the state of the cover of a vehicle-mounted multi-functional DC-to-DC charger when it is open, as described in this embodiment of the utility model.
[0021] In the above attached diagram: 1. Body, 2. Interface, 3. Plug, 4. Mounting frame, 5. Cover plate, 6. Hinge, 7. Limiting hole, 8. Rubber pad, 9. Through hole, 10. Through seam, 11. U-shaped clamp, 12. Slot, 13. Heat dissipation fins, 14. Heat dissipation fan, 15. Protective net. Detailed Implementation
[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0023] like Figures 1-4 As shown in the figure, this utility model embodiment proposes a vehicle-mounted multi-functional DC-to-DC charger, comprising:
[0024] The machine body 1 has an interface 2 on one side, and a plug 3 is connected to the interface 2. The plug 3 is connected to a wire.
[0025] The protective assembly includes a mounting frame 4, a cover plate 5, a rubber pad 8, and a U-shaped clamp 11. The mounting frame 4 is fixedly mounted on one side of the machine body 1, and the interface 2 is located inside the mounting frame 4. The cover plate 5 covers the outside of the mounting frame 4, and a hinge 6 is fixedly mounted on one end of the cover plate 5. The other end of the hinge 6 is fixedly mounted on the mounting frame 4, allowing the cover plate 5 to rotate through the hinge 6. A limiting hole 7 is provided through the cover plate 5, such as... Figure 3 The end of the cover plate 5 shown is provided so that the wire can be inserted into the limiting hole 7.
[0026] The rubber gasket 8 is fixedly installed inside the cover plate 5, and abuts against the inner side of the mounting frame 4. The rubber gasket 8 can play a sealing role to prevent dust from entering the mounting frame 4. A through hole 9 is provided through the rubber gasket 8, and the through hole 9 is used for wires to pass through. Figure 4 The rubber pad 8 shown has a through-hole 10 at one end. The rubber pad 8 has a certain elasticity, which allows the through-hole 10 to be pulled open, so that the wire can pass through the through-hole 10 and be inserted into the through hole 9.
[0027] The two ends of the U-shaped clamp 11 are rotatably connected to the two sides of the mounting frame 4, allowing the U-shaped clamp 11 to rotate. The cover plate 5 is provided with a slot 12, and the U-shaped clamp 11 is configured to cooperate with the slot 12, so that the U-shaped clamp 11 can be inserted into the slot 12, thereby fixing the cover plate 5 in place.
[0028] Several heat dissipation fins 13 are fixedly installed on the body 1, and the heat dissipation fins 13 are used to dissipate heat from the body 1. A cooling fan 14 is fixedly installed on the heat dissipation fins 13, and the cooling fan 14 is used to dissipate heat from the heat dissipation fins 13 and the body 1, thereby improving the heat dissipation effect. A protective net 15 is fixedly installed on the cooling fan 14, and the protective net 15 serves a protective function.
[0029] The detailed working process of this utility model is as follows:
[0030] 1. When connecting, first insert the plug 3 into the interface 2, then pull the through seam 10 to open it. Then, pass the wire through the through seam 10 and insert it into the through hole 9. Then, cover the cover plate 5 and use the rubber pad 8 to press and fix the plug 3. The rubber pad 8 should be sealed against the inside of the mounting frame 4. Finally, bend the U-shaped clamp 11 upward and insert it into the slot 12 to fix the cover plate 5, thereby fixing and sealing the plug 3.
[0031] 2. To disconnect, first bend the U-shaped clamp 11 downwards to separate it from the slot 12, then open the cover plate 5. Next, open the through-line seam 10 and pass the wire through the through-line seam 10 to separate it from the rubber pad 8. Finally, you can pull out the plug 3 and separate it from the interface 2.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A vehicle-mounted multi-functional DC-to-DC charger, characterized in that, include: The body (1) has an interface (2) on one side, and a plug (3) is connected to the interface (2). The protective assembly includes a mounting frame (4), a cover plate (5), a rubber pad (8), and a U-shaped clamp (11). The mounting frame (4) is fixedly installed on one side of the body (1). A hinge (6) is fixedly installed at one end of the cover plate (5), and the other end of the hinge (6) is fixedly installed on the mounting frame (4). The rubber pad (8) is fixedly installed inside the cover plate (5). The two ends of the U-shaped clamp (11) are rotatably connected to both sides of the mounting frame (4).
2. The vehicle-mounted multi-functional DC-to-DC charger according to claim 1, characterized in that, in: A number of heat dissipation fins (13) are fixedly installed on the body (1), and a cooling fan (14) is fixedly installed on the heat dissipation fins (13).
3. A vehicle-mounted multi-functional DC-to-DC charger according to claim 1, characterized in that, in: A limiting hole (7) is provided through the cover plate (5), and the limiting hole (7) is provided through one end of the cover plate (5).
4. A vehicle-mounted multi-functional DC-to-DC charger according to claim 1, characterized in that, in: A through hole (9) is provided on the rubber pad (8), and a through-hole (10) is provided at one end of the through hole (9) that passes through the rubber pad (8).
5. A vehicle-mounted multi-functional DC-to-DC charger according to claim 1, characterized in that, in: The cover plate (5) is provided with a slot (12), and the U-shaped clamp (11) is configured to cooperate with the slot (12).
6. A vehicle-mounted multi-functional DC-to-DC charger according to claim 2, characterized in that, in: A protective net (15) is fixedly installed on the cooling fan (14).