Waterproof electric vehicle converter

Abstract

The utility model discloses a waterproof electric vehicle converter which comprises a shell with an opening and a circuit board installed in the shell and further comprises a sealing plate used for sealing the opening of the shell, and a sealing strip is arranged on the sealing plate. Lug plates are arranged on the upper side and the lower side of an opening of the shell, the sealing plate is provided with a top and a bottom, the top of the sealing plate is located on the inner side of the upper lug plate and makes contact with the inner wall of the shell, and the bottom of the sealing plate is located on the outer side of the lower lug plate and makes contact with the bottom of the shell. According to the utility model, the sealing of the opening of the shell is realized through the sealing plate and the sealing strip, and the sealing effect between the sealing plate and the sealing strip and the sealing effect between the sealing plate and the cable are improved through the staggered threaded hole I and the threaded hole II, so that the probability that water enters the converter in a wading or rainy environment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of converters, and in particular to a water-resistant electric vehicle converter. Background Technology

[0002] The electric vehicle converter is a crucial component of an electric vehicle, responsible for converting the battery voltage into the operating voltage for the electrical appliances on the vehicle. It is the core control device for the electric vehicle's motor starting, running, forward and reverse movement, speed control, stopping, and other electronic devices. Therefore, protecting the converter from moisture damage is equivalent to protecting the "brain" of the electric vehicle and ensuring its normal operation.

[0003] Existing electric vehicle converters occasionally get water in when driving through water or parking in the rain, causing damage to the converter and preventing the electric vehicle from working properly. Therefore, it is necessary to design a water-resistant electric vehicle converter. Utility Model Content

[0004] This invention provides a water-resistant electric vehicle converter, which can at least solve one of the problems pointed out in the background art.

[0005] A water-resistant electric vehicle converter includes a housing with an opening and a circuit board installed inside the housing, and also includes a sealing plate for sealing the opening of the housing, the sealing plate being provided with a sealing strip;

[0006] The shell opening is provided with ear plates on both the upper and lower sides. The sealing plate has a top and a bottom. The top of the sealing plate is located inside the upper ear plate and contacts the inner wall of the shell. The bottom of the sealing plate is located outside the lower ear plate and contacts the bottom of the shell.

[0007] The sealing plate is fixed to the housing by fasteners.

[0008] Preferably, the sealing plate has a threaded hole one that mates with a fastener, and the housing has a threaded hole two that mates with a fastener, with the threaded holes one and two being staggered.

[0009] Preferably, a limiting plate is also fixedly connected to the top of the sealing plate, and the limiting plate is in contact with the ear plate.

[0010] Preferably, the top of the sealing plate and the limiting plate are provided with clearance grooves that cooperate with the cable.

[0011] Preferably, the ear plate has a guide groove that mates with the cable.

[0012] Preferably, the contact surface between the bottom of the housing and the bottom of the sealing plate is an inclined surface.

[0013] Preferably, the exterior of the housing is provided with heat dissipation fins.

[0014] Compared with the prior art, the beneficial effects of this utility model are: this utility model can achieve the sealing of the shell opening through the sealing plate and sealing strip, and improve the sealing effect between the sealing plate and sealing strip and between the sealing plate and the cable through the misaligned threaded hole one and threaded hole two, thereby reducing the probability of water entering the converter in water or rainy weather. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the sealing plate structure;

[0017] Figure 3 This is a partial cross-sectional view of the present invention;

[0018] Figure 4 for Figure 3 A magnified view of part A.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1-Housing, 2-Sealing plate, 3-Fastener, 4-Sealing strip, 5-Ear plate, 6-Limiting plate, 7-Leaning groove, 8-Guide groove, 9-Cable, 10-Bevel, 11-Threaded hole one, 12-Threaded hole two. Detailed Implementation

[0021] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0022] like Figures 1 to 4 As shown in the figure, the present invention provides a water-proof electric vehicle converter, which has an open housing 1 and a circuit board (not shown in the figure) installed in the housing 1. It also includes a sealing plate 2 for sealing the opening of the housing 1. The sealing plate 2 is fixed to the housing 1 by fasteners 3. A sealing strip 4 is provided on the sealing plate 2 to play a sealing role, effectively preventing rainwater from entering the housing 1 and ensuring that the circuit board can work normally.

[0023] Ear plates 5 are provided on both the upper and lower sides of the opening of the housing 1. The sealing plate 2 has a top and a bottom. The top of the sealing plate 2 is located inside the upper ear plate 5 and contacts the inner wall of the housing 1. The bottom of the sealing plate 2 is located outside the lower ear plate 5 and contacts the bottom of the housing 1.

[0024] When installing the sealing plate 2, first insert the top of the sealing plate 2 into the housing 1, then fit the bottom of the sealing plate 2 against the ear plate 5 located below, and finally screw in the fastener 3 to fix it.

[0025] A limiting plate 6 is also fixedly connected to the top of the sealing plate 2, and the limiting plate 6 contacts the ear plate 5;

[0026] Most existing converters are equipped with wiring that extends out of the converter, but the interface between the converter wiring and the controller cable 9 still needs to be waterproofed. After a long period of use, the waterproof effect gradually deteriorates due to factors such as the aging of the waterproof tape. Therefore, this application uses a removable cover plate 2 to directly insert the controller cable 9 into the interface of the circuit board. After covering the cover plate 2, a seal can be achieved, which is safer than the existing method.

[0027] The top of the sealing plate 2 and the limiting plate 6 are both provided with clearance grooves 7 that cooperate with the cable 9. The ear plate 5 is provided with guide grooves 8 that cooperate with the cable 9. The limiting plate 6 and the top of the sealing plate 2 realize two water-blocking structures to prevent water from seeping in from the joint between the cable 9 and the sealing plate 2. In order to ensure a tight connection between the cable 9 and the sealing plate 2, the fastener 3 in this embodiment is a screw. The sealing plate 2 is provided with a threaded hole 11 that cooperates with the fastener 3. The housing 1 is provided with a threaded hole 12 that cooperates with the fastener 3. The threaded holes 11 and 12 are staggered and partially connected. In addition, the contact surface between the bottom of the housing 1 and the bottom of the sealing plate 2 is a slope 10. When the screw is screwed in, the sealing plate 2 will be displaced. When the screw is tightened, the bottom of the sealing plate 2 fits against the slope 10, and the limiting plate 6 abuts against the ear plate 5, thereby preventing water from seeping in from the joint between the cable 9 and the sealing plate 2.

[0028] In some other embodiments, heat dissipation fins are provided on the outside of the housing 1 to improve heat dissipation.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit and essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water-resistant electric vehicle converter, comprising a housing with an opening and a circuit board mounted within the housing, characterized in that, It also includes a sealing plate for sealing the opening of the housing, the sealing plate being provided with a sealing strip; The shell opening is provided with ear plates on both the upper and lower sides. The sealing plate has a top and a bottom. The top of the sealing plate is located inside the upper ear plate and contacts the inner wall of the shell. The bottom of the sealing plate is located outside the lower ear plate and contacts the bottom of the shell. The sealing plate is fixed to the housing by fasteners.

2. The water-resistant electric vehicle converter as described in claim 1, characterized in that, The sealing plate has a threaded hole 1 that mates with a fastener, and the housing has a threaded hole 2 that mates with a fastener. The threaded holes 1 and 2 are distributed alternately.

3. The water-resistant electric vehicle converter as described in claim 1, characterized in that, A limiting plate is also fixedly connected to the top of the sealing plate, and the limiting plate is in contact with the ear plate.

4. A water-resistant electric vehicle converter as described in claim 3, characterized in that, The top of the sealing plate and the limiting plate are both provided with clearance grooves to accommodate the cable.

5. A water-resistant electric vehicle converter as described in claim 4, characterized in that, The ear plate is provided with a guide groove that mates with the cable.

6. A water-resistant electric vehicle converter as described in claim 1, characterized in that, The contact surface between the bottom of the housing and the bottom of the sealing plate is an inclined surface.

7. A water-resistant electric vehicle converter as described in claim 1, characterized in that, The exterior of the housing is provided with heat dissipation fins.

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