LU504475B1

LU504475B1 - Heat-Dissipation Waterproof Charger for Electric Vehicle

Info

Publication number: LU504475B1
Application number: LU504475A
Authority: LU
Inventors: Xiangwen Tang
Original assignee: Suzhou Keyiying Information Tech Co Ltd
Priority date: 2023-04-19
Filing date: 2023-05-05
Publication date: 2023-09-25
Also published as: WO2023151721A3; CN219406189U; WO2023151721A2

Abstract

The present application discloses a heat-dissipation waterproof charger for an electric vehicle, and relates to the field of electric vehicle chargers. The heat-dissipation waterproof charger for the electric vehicle includes an upper housing, a lower housing, a wire, and a heat-dissipation structure; and a side face of the upper housing is provided with a ventilation hole, the ventilation hole is provided with a rain cover, the lower housing is internally provided with a circuit board, and the heat-dissipation structure is arranged under the circuit board. The present application provides a new-type structure, the waterproof performance of the electric vehicle charger may be improved, water is prevented from entering the charger while it is charged outdoors on a rainy day, and the heat-dissipation performance is also enhanced.

Description

LE LUS04475

HEAT-DISSIPATION WATERPROOF CHARGER FOR ELECTRIC

VEHICLE

TECHNICAL FIELD

The present application belongs to the technical field of electric vehicle chargers, and particularly relates to a heat-dissipation waterproof charger for an electric vehicle.

BACKGROUND

An electric vehicle is driven by using accumulators as energy, so while the energy of the accumulator is depleted, a charger needs to be used for charging.

The charger may generate heat during use, so it is necessary to maintain dryness and ventilation. If a rainy day is encountered in the charging process, moisture may enter into an interface or an interior, thus the entire charger may be damaged or even self-ignited, so as to cause a dangerous situation.

SUMMARY

A main technical problem solved by the present application is that an existing charger has a simple structure and does not have any waterproof effects, and if it encounters a rainy day or is soaked in water, it may be damaged.

In order to solve the above technical problem, a technical scheme adopted by the present application is as follows.

A heat-dissipation waterproof charger for an electric vehicle, characterized in that the heat-dissipation waterproof charger for the electric vehicle includes an upper housing, a lower housing, a wire, and a heat-dissipation structure; and a side face of the upper housing is provided with a ventilation hole.

The lower housing is internally symmetrically provided with two first rib plates and two second rib plates respectively, a top portion of the second rib plate is provided with a circuit board, and the heat-dissipation structure is arranged under the circuit board.

The height of a gap between the first rib plate on one side of the lower 7504475 housing and a bottom surface of the lower housing is H1, the height of a gap between the first rib plate on the other side of the lower housing and the bottom surface of the lower housing is H2, and H2>H1.

The second rib plate is provided with a communicating hole, and the communicating hole is located at one end adjacent to the circuit board.

The heat-dissipation structure is composed of a heat conduction bottom plate, a heat conduction copper tube, and a heat-dissipation fin, the heat conduction bottom plate is located below the circuit board, the heat conduction copper tube is embedded in the heat conduction bottom plate, and the heat-dissipation fin is connected with the heat conduction copper tube.

One side between the heat conduction bottom plate and the circuit board is coated with a heat conduction layer, and the thickness of the heat conduction layer is 0.1-0.3 mm.

Further, two ends of the upper housing are respectively connected with the wire.

Further, a joint portion between the upper and lower housings is provided with a sealing ring.

Further, the heat-dissipation fins are vertically distributed on the heat conduction bottom plate in equal distance, and the spacing distance between every two heat-dissipation fins is 4-6 mm.

Further, the ventilation hole is provided with a rain cover.

Further, the heat conduction layer is a 7762 heat conduction paste layer.

Beneficial effects of the present application: 1. The present application adopts a new-type structure, the sealing ring is used at the joint portion, and an air inlet is further provided with the rain cover, thus the waterproof performance of the charger is directly enhanced; and the distance from the communicating hole of the present application to the bottom surface is higher than H2/H1, even if a small amount of water enters the charger, it may not affect the normal work of the charger.

2. The present application adopts the heat-dissipation structure for circuit 7504475 board heat dissipation, the heat-dissipation area is increased, and the heat-dissipation capability is greatly improved.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to describe embodiments of the present application or technical schemes in existing technologies more clearly, drawings used in the description of the embodiments or the existing technologies are briefly introduced below. Apparently, the drawings in the following description are only some of the embodiments of the present application. For those of ordinary skill in the art, other drawings may also be obtained according to these drawings without paying creative labor

Fig. 1 is a schematic diagram of a charger provided by the present application;

Fig. 2 is a schematic diagram of the interior of a lower housing of the charger;

Fig. 3 is a schematic diagram of an upper housing of the charger;

Fig. 4 is a cross-sectional schematic diagram of the charger (an arrow indicates an airflow direction); and

Fig. 5 is a schematic diagram of a breakdown structure.

Explanation of drawing reference signs:

Upper housing 1; Rain cover 11; Ventilation hole 12; Lower housing 2;

Circuit board 21; Fastening member 22; Second rib plate 23; First rib plate 24:

Wire 3; Heat-dissipation structure 4; Heat conduction bottom plate 41; Heat conduction copper tube 42; and Heat-dissipation fin 43.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Preferred embodiments of the present application are described in detail below in combination with the drawings, so that the advantages and features of the present application may be more easily understood by those skilled in the art, and thus a clearer and more definite definition is provided for the scope of protection of the present application.

Embodiment 1: HUS04475

As shown in Figs. 1 to 5, a heat-dissipation waterproof charger for an electric vehicle, characterized in that the heat-dissipation waterproof charger for the electric vehicle includes an upper housing 1, a lower housing 2, a wire 3, and a heat-dissipation structure 4; and a side face of the upper housing 1 is provided with a ventilation hole 12.

The lower housing 2 is internally symmetrically provided with two first rib plates 24 and two second rib plates 23 respectively, a top portion of the second rib plate is provided with a circuit board 21, and the heat-dissipation structure 4 is arranged under the circuit board 21.

The height of a gap between the first rib plate 24 on one side of the lower housing and a bottom surface of the lower housing 2 is H1, the height of a gap between the first rib plate 24 on the other side of the lower housing and the bottom surface of the lower housing 2 is H2, and H2>H1.

The second rib plate 23 is provided with a communicating hole, and the communicating hole is located at one end adjacent to the circuit board.

The heat-dissipation structure 4 is composed of a heat conduction bottom plate 41, a heat conduction copper tube 42, and a heat-dissipation fin 43, the heat conduction bottom plate 41 is located below the circuit board 21, the heat conduction copper tube 42 is embedded in the heat conduction bottom plate 41, and the heat-dissipation fin 43 is connected with the heat conduction copper tube 42.

One side between the heat conduction bottom plate 41 and the circuit board 21 is coated with a heat conduction layer, and the thickness of the heat conduction layer is 0.1-0.3 mm.

Specifically, two ends of the upper housing 1 are respectively connected with the wire.

Specifically, a joint portion between the upper and lower housings 1, 2 is provided with a sealing ring.

Specifically, the heat-dissipation fins 43 are vertically distributed on the heat conduction bottom plate 41 in equal distance, and the spacing distance 7504475 between every two heat-dissipation fins 43 is 4-6 mm.

Specifically, the ventilation hole 12 is provided with a rain cover 11.

Specifically, the heat conduction layer is a 7762 heat conduction paste 5 layer.

Working principle:

While the charger works (referring to Fig. 4), the airflow enters from the ventilation hole at the left, flows downwards, and enters a space of the heat-dissipation structure after detouring. However, HI and H2 are not consistent, and H2>HI, so that an airflow difference may be formed, and the circular flow is generated, the air exits from the right side by the airflow difference, and this process is circulated. Inside the space of the heat-dissipation structure, the heat conduction paste layer quickly transfers the heat of the circuit board to the heat-dissipation fins by the heat conduction copper tube, and the heat-dissipation fins evenly transfer the heat to various positions of the fins, thus the contact area for heat dissipation is increased, achieving the rapid heat dissipation. However, with this airflow channel may not allow water to enter, and even if the water enters, it may flow to the bottom.

The sealing ring is arranged between the upper and lower housings, and the ventilation hole is further provided with the rain cover, so while it encounters a rainy day or is soaked in water, only the airflow, but not the water, is allowed to pass through.

The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural changes made by using the content of the description and drawings of the present application, directly or indirectly applied in other related technical fields, are equally included in the scope of patent protection of the present application.

Claims

CLAIMS LU504475

1. A heat-dissipation waterproof charger for an electric vehicle, characterized in that the heat-dissipation waterproof charger for the electric vehicle comprises an upper housing (1), a lower housing (2), a wire (3), and a heat-dissipation structure (4); and a side face of the upper housing (1) is provided with a ventilation hole (12); the lower housing (2) is internally symmetrically provided with two first rib plates (24) and two second rib plates (23) respectively, a top portion of the second rib plate is provided with a circuit board (21), and the heat-dissipation structure (4) is arranged under the circuit board (21); the height of a gap between the first rib plate (24) on one side of the lower housing and a bottom surface of the lower housing (2) is H1, the height of a gap between the first rib plate (24) on the other side of the lower housing and the bottom surface of the lower housing (2) is H2, and H2>H1; the second rib plate (23) is provided with a communicating hole, and the communicating hole is located at one end adjacent to the circuit board: the heat-dissipation structure (4) is composed of a heat conduction bottom plate (41), a heat conduction copper tube (42), and a heat-dissipation fin (43), the heat conduction bottom plate (41) is located below the circuit board (21), the heat conduction copper tube (42) is embedded in the heat conduction bottom plate (41), and the heat-dissipation fin (43) is connected with the heat conduction copper tube (42); and one side between the heat conduction bottom plate (41) and the circuit board (21) is coated with a heat conduction layer, and the thickness of the heat conduction layer is 0.1-0.3 mm.

2. The heat-dissipation waterproof charger for the electric vehicle as claimed in claim 1, characterized in that two ends of the upper housing (1) are respectively connected with the wire (3).

3. The heat-dissipation waterproof charger for the electric vehicle as claimed in claim 1, characterized in that a joint portion between the upper and lower housings (1, 2) is provided with a sealing ring. 7504475

4. The heat-dissipation waterproof charger for the electric vehicle as claimed in claim 1, characterized in that the heat-dissipation fins (43) are vertically distributed on the heat conduction bottom plate (41) in equal distance, and the spacing distance between every two heat-dissipation fins (43) is 4-6 mm.

5. The heat-dissipation waterproof charger for the electric vehicle as claimed in claim 1, characterized in that the ventilation hole (12) is provided with a rain cover (11).

6. The heat-dissipation waterproof charger for the electric vehicle as claimed in claim 1, characterized in that the heat conduction layer is a 7762 heat conduction paste layer.