Waterproof vehicle-mounted inverter

Abstract

The utility model relates to the field of inverters, and discloses a waterproof vehicle-mounted inverter, which comprises an inverter body, the outer wall of the inverter body is fixedly connected with a sealing shell, the inner wall of the sealing shell is fixedly connected with radiating fins, the outer surfaces of the radiating fins are fixedly connected with a sealing ring, and the sealing ring is fixedly connected with the outer wall of the sealing shell. A flow guide plate is fixedly connected to the side wall of the sealing shell, reinforcing ribs are fixedly connected to the bottoms of the cooling fins, a bearing plate is fixedly connected to the inner wall of the sealing shell, through holes are formed in the surface of the bearing plate in a penetrating mode, and a converging plate is fixedly connected to the inner wall of the sealing shell. According to the utility model, the inverter is installed in the sealed housing through the arrangement of the heat dissipation fins, the sealing ring, the flow guide plate and other structures, so that the inverter can be stably used in complex and changeable environments such as rainy days and wading roads, and can carry out effective heat dissipation while normal wiring is carried out, thereby providing better waterproof and heat dissipation effects for the vehicle-mounted inverter.

Description

Technical Field

[0001] This utility model relates to the field of inverters, and more particularly to a waterproof vehicle-mounted inverter. Background Technology

[0002] A vehicle inverter is an electronic device that converts a vehicle's direct current (DC) to alternating current (AC). It is mainly used in cars or other environments that use DC power to supply power to electrical appliances that require AC power. Cars are often exposed to the outdoors, whether driving on rainy roads or parked in open-air parking lots. Vehicle inverters may come into direct contact with rainwater, so they need to be waterproof.

[0003] A search revealed that Chinese Patent Publication No. CN221283058U discloses a waterproof vehicle inverter. It uses a baffle assembly to block rainwater from seeping in from the front end, and to block and isolate rainwater from seeping into the gap between the cover plate and the housing, thereby preventing rainwater from corroding the components and simultaneously satisfying the heat dissipation of the internal components.

[0004] In the above technical solution, the setting of the barrier component prevents rainwater from contacting the inverter and thus provides a waterproof function. However, the barrier component may have certain gaps, or during long-term use, due to factors such as vibration during vehicle operation, the position of the barrier component may undergo slight displacement, allowing rainwater to enter and making it difficult to keep the inverter in a relatively dry environment for use. Therefore, a waterproof vehicle inverter is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a waterproof vehicle inverter, which aims to improve the problem that existing waterproof vehicle inverters are difficult to use in a relatively sealed and dry space, thus reducing their waterproof effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a waterproof vehicle inverter, comprising an inverter body, a sealing shell fixedly connected to the outer wall of the inverter body, heat dissipation fins fixedly connected to the inner wall of the sealing shell, a sealing ring fixedly connected to the outer surface of the heat dissipation fins, a guide plate fixedly connected to the side wall of the sealing shell, a reinforcing rib fixedly connected to the bottom of the heat dissipation fins, a support plate fixedly connected to the inner wall of the sealing shell, a through hole formed on the surface of the support plate, a converging plate fixedly connected to the inner wall of the sealing shell, a wiring hole formed on the surface of the sealing shell, an O-ring fixedly connected to the inner wall of the wiring hole, and a drainage assembly provided on the surface of the sealing shell.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the heat dissipation fins is attached to the outer wall of the inverter body, and the heat dissipation fins penetrate the sealed housing.

[0009] As a further description of the above technical solution:

[0010] The top of the support plate is fixedly connected to the bottom of the inverter body, and the converging plate is located at the bottom of the support plate.

[0011] As a further description of the above technical solution:

[0012] The converging plate is arranged in a V-shape.

[0013] As a further description of the above technical solution:

[0014] The drainage assembly includes a drain pipe, and a one-way valve is provided on the surface of the drain pipe.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the drain pipe is fixedly connected to the center of the converging plate, and the drain pipe passes through the converging plate.

[0017] As a further description of the above technical solution:

[0018] A protective cylinder is fixedly connected to the outer wall of the sealed housing, and a rubber gasket is fixedly connected to the inner wall of the protective cylinder. A cross-shaped opening is provided at the center of the rubber gasket.

[0019] As a further description of the above technical solution:

[0020] The protective sleeve is installed on the outer wall of the wiring hole.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by combining structures such as heat dissipation fins, sealing rings, guide plates, reinforcing ribs, support plates, through holes, converging plates, wiring holes, O-rings, and drainage components, the inverter is installed in a sealed housing, allowing the inverter to be used stably in complex and variable environments such as rainy days and flooded roads. It can effectively dissipate heat while maintaining normal wiring, providing better waterproofing and heat dissipation effects for vehicle inverters.

[0023] 2. In this utility model, by combining the protective cylinder, sealing gasket and cross opening, the wire can be wrapped around the inverter when it passes through the sealed shell. The O-ring increases the waterproof effect and at the same time increases the friction between the wire and the protective cylinder, keeping it in a centered state and providing better wiring stability. Attached Figure Description

[0024] Figure 1 This is a front view of the internal structure of the main body of a waterproof vehicle inverter proposed in this utility model;

[0025] Figure 2 This is a bottom view of the main structure of a waterproof vehicle inverter proposed in this utility model.

[0026] Figure 3 This is a right-side view of the main structure of a waterproof vehicle inverter proposed in this utility model;

[0027] Figure 4 This utility model proposes a waterproof vehicle inverter. Figure 3 Enlarged view of region A in the middle;

[0028] Figure 5 This is a partial cross-sectional view of the main structure of a waterproof vehicle-mounted inverter proposed in this utility model.

[0029] Legend:

[0030] 1. Inverter body; 2. Sealed housing; 3. Heat sink fins; 4. Sealing ring; 5. Flow guide plate; 6. Reinforcing rib; 7. Support plate; 8. Through hole; 9. Converging plate; 10. Drain pipe; 11. Check valve; 12. Wiring hole; 13. O-ring; 14. Protective sleeve; 15. Rubber pad; 16. Cross opening. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3This utility model provides an embodiment of a waterproof vehicle inverter, comprising an inverter body 1, a sealed housing 2 fixedly connected to the outer wall of the inverter body 1, the sealed housing 2 being made of a moisture-absorbing material, which can absorb moisture from the external environment to a certain extent and prevent moisture from entering the interior of the sealed housing 2, and a moisture-absorbing material, such as a desiccant like silica gel desiccant or calcium chloride desiccant, is placed inside the sealed housing 2. Heat dissipation fins 3 are fixedly connected to the inner wall of the sealed housing 2, the outer wall of the heat dissipation fins 3 being in contact with the outer wall of the inverter body 1, and the heat dissipation fins 3 being located at the heat dissipation holes of the inverter body 1. The heat dissipation fins 3 penetrate the sealed housing 2. A sealing ring 4 is fixedly connected to the outer surface of the heat dissipation fins 3. A guide plate 5 is fixedly connected to the side wall of the sealed housing 2. A reinforcing rib 6 is fixedly connected to the bottom of the heat dissipation fins 3. The reinforcing rib 6 increases the rigidity and strength of the heat dissipation fins 3, ensuring the stability of the area outside the sealed housing 2. A support plate 7 is fixedly connected to the inner wall of the sealed housing 2. The top of the support plate 7 is fixedly connected to the bottom of the inverter body 1. A through hole 8 is opened through the surface of the support plate 7. Several sets of through holes 8 are opened and are evenly distributed on the surface of the support plate 7 for draining condensate.

[0033] Reference Figures 3-5 A converging plate 9 is fixedly connected to the inner wall of the sealing housing 2. The converging plate 9 is V-shaped and located at the bottom of the support plate 7. A wiring hole 12 is opened through the surface of the sealing housing 2. An O-ring 13 is fixedly connected to the inner wall of the wiring hole 12. A drainage assembly is provided on the surface of the sealing housing 2. The drainage assembly includes a drain pipe 10. The outer wall of the drain pipe 10 is fixedly connected to the center of the converging plate 9. The drain pipe 10 passes through the converging plate 9. A one-way valve 11 is provided on the surface of the drain pipe 10. The one-way valve 11 allows the drain pipe 10 to only drain the condensate inside the sealing housing 2 and prevents external water sources from entering.

[0034] Reference Figure 4 A protective cylinder 14 is fixedly connected to the outer wall of the sealing housing 2. The protective cylinder 14 is sleeved on the outer wall of the wiring hole 12. The protective cylinder 14 sleeved on the outer wall of the wiring hole 12 can further prevent rainwater from entering the interior of the sealing housing 2 through the wiring hole 12. A rubber pad 15 is fixedly connected to the inner wall of the protective cylinder 14. A cross opening 16 is opened at the center of the rubber pad 15.

[0035] Working principle: The wire is inserted into the inner wall of the protective cylinder 14 through the cross opening 16, and enters the sealed housing 2 through the wiring hole 12 to connect with the interface of the inverter body 1. The rubber pad 15 of the cross opening 16 can form a certain friction with the surface of the wire, thereby ensuring that the wire is stably inside the protective cylinder 14. Most of the heat dissipation fins 3 are located outside the sealed housing 2 and in contact with the air, while a small portion is in contact with the surface of the inverter body 1. The heat generated by the inverter body 1 is transferred to the surface of the multiple sets of heat dissipation fins 3. Utilizing the structure where most of the heat dissipation fins 3 are located outside the sealed housing 2, the heat generated by the inverter body 1 during operation can be effectively conducted to the external environment for heat exchange with the air. The areas where the plate 3 contacts the inner and outer surfaces of the sealed housing 2 are sealed by the sealing ring 4 to prevent rainwater from seeping into the interior of the sealed housing 2. Rainwater can slide down naturally from the guide plate 5, which is set in a right angle triangle, and flow out naturally from the gaps in each set of heat dissipation fins 3 by gravity. Since the sealed housing 2 has no vent holes, a relatively sealed environment is formed inside. The heat generated when the inverter body 1 is working will cause the internal temperature of the sealed housing 2 to rise, which will cause water vapor in the air to condense into condensate. The condensate is discharged through the through hole 8 to the collecting plate 9. The condensate is discharged from the collecting plate 9 to the drain pipe 10 by gravity, avoiding the accumulation of condensate in the sealed housing 2 and causing damage to the inverter body 1.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof vehicle-mounted inverter, comprising an inverter body (1), wherein a sealed housing (2) is fixedly connected to the outer wall of the inverter body (1), characterized in that: The inner wall of the sealed housing (2) is fixedly connected with heat dissipation fins (3), the outer surface of the heat dissipation fins (3) is fixedly connected with sealing rings (4), the side wall of the sealed housing (2) is fixedly connected with a flow guide plate (5), the bottom of the heat dissipation fins (3) is fixedly connected with a reinforcing rib (6), the inner wall of the sealed housing (2) is fixedly connected with a support plate (7), the surface of the support plate (7) is provided with a through hole (8), the inner wall of the sealed housing (2) is fixedly connected with a converging plate (9), the surface of the sealed housing (2) is provided with a wiring hole (12), the inner wall of the wiring hole (12) is fixedly connected with an O-ring (13), and the surface of the sealed housing (2) is provided with a drainage component.

2. The waterproof vehicle inverter according to claim 1, characterized in that: The outer wall of the heat dissipation fins (3) is attached to the outer wall of the inverter body (1), and the heat dissipation fins (3) penetrate the sealed housing (2).

3. A waterproof vehicle inverter according to claim 1, characterized in that: The top of the support plate (7) is fixedly connected to the bottom of the inverter body (1), and the converging plate (9) is located at the bottom of the support plate (7).

4. A waterproof vehicle inverter according to claim 1, characterized in that: The converging plate (9) is arranged in a V-shape.

5. A waterproof vehicle inverter according to claim 1, characterized in that: The drainage assembly includes a drain pipe (10) with a one-way valve (11) on its surface.

6. A waterproof vehicle inverter according to claim 5, characterized in that: The outer wall of the drain pipe (10) is fixedly connected to the center of the converging plate (9), and the drain pipe (10) passes through the converging plate (9).

7. A waterproof vehicle inverter according to claim 1, characterized in that: The outer wall of the sealed housing (2) is fixedly connected to a protective cylinder (14), and the inner wall of the protective cylinder (14) is fixedly connected to a rubber pad (15). A cross opening (16) is provided at the center of the rubber pad (15).

8. A waterproof vehicle inverter according to claim 7, characterized in that: The protective sleeve (14) is fitted onto the outer wall of the wiring hole (12).

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