Charger shell air inlet waterproof structure

Abstract

The utility model discloses a kind of charger shell air inlet waterproof structure, comprising: charger main body, waterproof component;Charger main body includes upper shell and lower shell;Waterproof component includes heat conduction plate installed in upper shell by screw locking, and heat dissipation fin fixedly installed in heat conduction plate bottom row.This kind of charger shell air inlet waterproof structure is described in the utility model, sealing pad and heat conduction insulating adhesive layer are installed on the upper end of heat conduction plate in upper shell, so that the circuit board on its upper portion is insulated and sealed installation in upper shell, thereby forming waterproof insulation structure between the air inlet and exhaust port of lower end lower shell two sides, ensure the waterproof performance of charger main body in use, simultaneously, heat generated in the use of circuit board can also be transferred to heat conduction plate and heat dissipation fin through heat conduction insulating adhesive layer, and through the heat dissipation fan of lower shell two sides, the heat on the upper end of heat conduction plate and heat dissipation fin is discharged.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charger technology, specifically a waterproof structure for the air inlet of a charger housing. Background Technology

[0002] Electric vehicle chargers are charging devices specifically designed for the batteries of electric bicycles. Chargers can be classified into two main categories based on whether they have a power frequency (50 Hz) transformer or not. Chargers for freight tricycles generally use chargers with a power frequency transformer, which are large, heavy, and consume a lot of electricity, but are reliable and inexpensive. Chargers for electric bicycles and electric motorcycles use so-called switching power supply chargers, which are energy-saving and efficient, but are prone to failure.

[0003] Existing waterproof structures for charger air inlets, such as the one disclosed in CN207836013U, although the slotted edges of the upper and lower covers allow parts of the upper and lower covers to overlap and lengthen the overlap gap, preventing water from directly entering the charger from the joint of the upper and lower covers, make it inconvenient to install waterproof insulation on the circuit board inside the charger. Consequently, water entering the charger's interior will affect its safety. Therefore, we propose a waterproof structure for the air inlet of the charger housing. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A waterproof structure for the air inlet of a charger housing includes: a charger body and a waterproof component; the charger body includes an upper housing and a lower housing; the waterproof component includes a heat-conducting plate installed inside the upper housing by screws, heat dissipation fins arranged and fixedly installed at the bottom of the heat-conducting plate, an air inlet and an air outlet arranged on both sides of the lower housing, and a sealing gasket fixedly installed on the upper part of the heat-conducting plate.

[0007] Preferably, a thermally conductive insulating adhesive layer is also fixedly disposed on the upper part of the heat-conducting plate.

[0008] Preferably, a circuit board is also fixedly installed on the upper end of the thermally conductive insulating adhesive layer.

[0009] Preferably, dustproof nets are also fixedly installed at both ends of the lower housing.

[0010] Preferably, cooling fans are also fixedly installed on both sides of the lower housing, and the cooling fans are located inside the air inlet.

[0011] Preferably, water-blocking inclined plates are also arranged and fixedly installed inside both the air inlet and the air outlet.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0013] 1. In this utility model, the sealing gasket and thermally conductive insulating adhesive layer installed on the upper end of the heat-conducting plate in the upper shell can make the circuit board above it insulated and sealed in the upper shell, thereby forming a waterproof and insulating structure between it and the air inlet and outlet on both sides of the lower shell, ensuring the waterproof performance of the charger body during use.

[0014] 2. In this utility model, the heat generated during the use of the circuit board can also be transferred to the heat-conducting plate and heat dissipation fins through the thermally conductive insulating adhesive layer, and the heat is discharged from the upper end of the heat-conducting plate and heat dissipation fins through the cooling fans on both sides of the lower housing, so as to avoid the high temperature of the circuit board and ensure the heat dissipation performance of the charger body during use. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the present invention;

[0016] Figure 2 This is a side sectional view of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;

[0018] Figure 4 This is a disassembly diagram of the lower housing of this utility model;

[0019] Figure 5 This is another perspective of the disassembly diagram of the lower housing of this utility model.

[0020] Figure label:

[0021] 100. Charger body; 101. Upper casing; 102. Lower casing;

[0022] 200. Waterproof components; 201. Screws; 202. Heat-conducting plate; 203. Heat dissipation fins; 204. Air inlet; 205. Air outlet; 206. Sealing gasket; 207. Thermally conductive insulating adhesive layer; 208. Circuit board; 209. Dustproof mesh; 210. Cooling fan; 211. Water-blocking ramp. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0024] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a waterproof structure for the air inlet of a charger housing.

[0025] Example 1:

[0026] Combination Figure 1-5 As shown, the present invention provides a waterproof structure for the air inlet of a charger housing, comprising: a charger body 100 and a waterproof component 200; the charger body 100 includes an upper housing 101 and a lower housing 102; the waterproof component 200 includes a heat-conducting plate 202 installed in the upper housing 101 by screws 201, heat dissipation fins 203 arranged and fixedly installed at the bottom of the heat-conducting plate 202, an air inlet 204 and an air outlet 205 respectively opened on both sides of the lower housing 102, and a fixedly installed on the upper part of the heat-conducting plate 202. The sealing gasket 206, the heat-conducting plate 202 is also fixedly provided with a thermally conductive insulating adhesive layer 207, the thermally conductive insulating adhesive layer 207 is also fixedly installed with a circuit board 208, the lower housing 102 is also fixedly installed with dustproof nets 209 at both ends, the lower housing 102 is also fixedly installed with cooling fans 210 on both sides, and the cooling fans 210 are located inside the air inlet 204. The cooling fans 210 are all waterproof fans. The air inlet 204 and the air outlet 205 are also fixedly installed with water-blocking inclined plates 211.

[0027] Specifically, an electric vehicle charger is a charging device specifically designed for the batteries of electric bicycles. The sealing gasket 206 and thermally conductive insulating layer 207 installed on the upper end of the heat-conducting plate 202 in the upper housing 101 allow the circuit board 208 to be insulated and sealed within the upper housing 101. This forms a waterproof and insulating structure between the circuit board 208 and the air inlets 204 and outlets 205 on both sides of the lower housing 102, ensuring the waterproof performance of the charger body 100 during use. Simultaneously, the heat generated by the circuit board 208 during use can be transferred through the thermally conductive insulating layer 207 to the heat-conducting plate 202 and the heat dissipation fins 203, and then dissipated by the cooling fans 210 on both sides of the lower housing 102. The heat is discharged from the upper end of the heat conduction plate 202 and the heat dissipation fins 203 to avoid the high temperature of the circuit board 208 and ensure the heat dissipation performance of the charger body 100 during use. The dustproof net 209 installed inside the air inlet 204 and the air outlet 205 in the lower housing 102 is mainly used to prevent external dust from entering the lower housing 102. The screw 201 that is locked between the heat conduction plate 202 and the upper housing 101 is mainly used to press the upper sealing gasket 206 to ensure the sealing and waterproof connection with the upper housing 101. The water-blocking inclined plate 211 arranged inside the air inlet 204 and the air outlet 205 is mainly used to prevent external water from entering the air inlet 204 and the air outlet 205.

[0028] Working principle and usage process of this utility model:

[0029] During use, the charger body 100 has water-blocking inclined plates 211 installed inside the air inlets 204 and exhaust outlets 205 on both sides of the lower housing 102. These plates prevent external water from directly entering the lower housing 102 through their downward-sloping structure. At the same time, the core component circuit board 208 inside the charger body 100 is waterproofed and insulated inside the upper housing 101 through the sealing gasket 206 at the upper end of the heat-conducting plate 202 and the thermally conductive insulating layer 207. This also prevents water from entering the lower housing 102 from affecting the circuit board 208. The heat generated by the circuit board 208 during use can also be transferred to the heat-conducting plate 202 and heat dissipation fins 203 at the bottom through the thermally conductive insulating layer 207. The cooling fans 210 on both sides of the lower housing 102 can then dissipate heat from the heat-conducting plate 202 and heat dissipation fins 203 in a timely manner to avoid high temperatures in the circuit board 208 during use.

[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A waterproof structure for the air inlet of a charger housing, characterized in that, include: Charger body (100), waterproof components (200); The charger body (100) includes an upper housing (101) and a lower housing (102); The waterproof assembly (200) includes a heat-conducting plate (202) installed in the upper housing (101) by screws (201), heat dissipation fins (203) arranged and fixedly installed at the bottom of the heat-conducting plate (202), an air inlet (204) and an air outlet (205) arranged and opened on both sides of the lower housing (102), and a sealing gasket (206) fixedly installed on the upper part of the heat-conducting plate (202).

2. The waterproof structure for the air inlet of a charger housing according to claim 1, characterized in that, A thermally conductive insulating adhesive layer (207) is also fixedly installed on the upper part of the heat-conducting plate (202).

3. The waterproof structure for the air inlet of a charger housing according to claim 2, characterized in that, A circuit board (208) is also fixedly installed on the upper end of the thermally conductive insulating adhesive layer (207).

4. The waterproof structure for the air inlet of a charger housing according to claim 1, characterized in that, Dustproof nets (209) are also fixedly installed at both ends of the lower housing (102).

5. The waterproof structure for the air inlet of a charger housing according to claim 1, characterized in that, Cooling fans (210) are fixedly installed on both sides of the lower housing (102), and the cooling fans (210) are located inside the air inlet (204).

6. The waterproof structure for the air inlet of a charger housing according to claim 1, characterized in that, Water-blocking inclined plates (211) are also fixedly installed inside the air inlet (204) and air outlet (205).

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