CN220298318U

CN220298318U - Enclosed internal circulation heat dissipation electric vehicle charger

Info

Publication number: CN220298318U
Application number: CN202322080534.7U
Authority: CN
Inventors: 蒋榕
Original assignee: Changzhou Baode Electrical Technology Co ltd
Current assignee: Changzhou Baode Electrical Technology Co ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-01-05
Anticipated expiration: 2033-08-04

Abstract

The utility model discloses a closed type internal circulation heat dissipation electric vehicle charger, which comprises a shell, wherein a heat dissipation mechanism is arranged in the shell and comprises a double turbine, an arc hollow body and a hollow cylinder; the circular arc hollow body is fixedly arranged in the shell, the twin turbine is fixedly arranged at the inner wall of the shell, one side of the twin turbine is connected with the circular arc hollow body, and the hollow cylinder is positioned at the inner side of the circular arc hollow body and is clamped with the circular arc hollow body; the end face of the shell is provided with a first through hole, and the inner wall of the first through hole is matched with the hollow cylinder body through transition. The heat dissipation mechanism drives the gas inside the shell to flow to contact the shell through the double turbines, and transmits part of high-temperature gas to the outside of the shell through the circular arc hollow body and the hollow cylinder.

Description

Enclosed internal circulation heat dissipation electric vehicle charger

Technical Field

The utility model relates to the technical field of electric charger equipment, in particular to a closed type internal circulation heat dissipation electric vehicle charger.

Background

The electric vehicle has become one of the most common daily transportation means in China, and is convenient for short-distance travel of thousands of households. The charger is a very important component of the electric vehicle, and the main function of the charger is to charge the vehicle energy storage device. The general structure of the charger for electric vehicles in the market at present is that a circuit board with electronic components is arranged in a plastic or aluminum alloy shell. In order to radiate heat for the electronic components, a radiating hole and a fan are arranged in a charger, or a radiating glue is filled in the charger, wherein the former radiating mode cannot prevent water and insects and is most likely to cause faults such as damage to the electronic components, short circuit of a charging wire and the like; the latter heat dissipation mode greatly increases the weight and price cost of the heat sink.

The utility model patent of the prior patent application number 2023200173433 specifically discloses a closed type internal circulation radiating electric vehicle charger, wherein a shell is divided into two parts through a partition wall, ventilation channels are reserved between two ends of the partition wall and the shell respectively, a fan is started, air circulates around the partition wall under the actions of forward blowing and backward suction of the fan, heat generated by a heating element and other elements on a circuit board is transferred to the shell along with the circulating flow of the air to radiate, so that the shell can radiate under the closed condition without filling radiating glue, and insect prevention and waterproofing are realized.

The above patent realizes internal circulation heat dissipation, but the heat dissipation cannot be effectively performed only by the internal circulation under the condition that the outside of the charger is windless.

Disclosure of Invention

The utility model aims to provide a closed type internal circulation heat dissipation electric vehicle charger so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the closed internal circulation heat dissipation type electric vehicle charger comprises a shell, wherein a heat dissipation mechanism is arranged in the shell and comprises a double turbine, an arc hollow body and a hollow cylinder; the circular arc hollow body is fixedly arranged in the shell, the twin turbine is fixedly arranged at the inner wall of the shell, one side of the twin turbine is connected with the circular arc hollow body, and the hollow cylinder is positioned at the inner side of the circular arc hollow body and is clamped with the circular arc hollow body; the end face of the shell is provided with a first through hole, and the inner wall of the first through hole is matched with the hollow cylinder body through transition. The heat dissipation mechanism drives the gas inside the shell to flow to contact the shell through the double turbines, and transmits part of high-temperature gas to the outside of the shell through the circular arc hollow body and the hollow cylinder.

According to the technical scheme, the hollow barrel comprises inner shell and shell, there is the hollow layer between inner shell and the shell, the shell is located through-hole one, the both sides and the circular arc hollow body joint of shell, the hollow layer meets with the inside of circular arc hollow body, the bottom of inner shell and with shell fixed connection, the top of shell is provided with the branch end, the top fixed connection of branch end and inner shell, be provided with the circulation mouth between the top of inner shell and the shell. The outer shell body half-bag inner shell body can prevent that external liquid from entering the hollow cylinder body in a large number, the width of the circulation port is smaller, the gas at the hollow layer flows out from the circulation port, and low pressure is generated at the inner wall of the inner shell body, so that a large amount of external air rapidly passes through the hollow cylinder body, and air near the shell body rapidly flows to indirectly realize the acceleration of the heat dissipation rate of the shell body.

According to the technical scheme, the inside fixed mounting of casing has the charger body, left line mouth, right line mouth have been seted up respectively to one side of casing, left line mouth, right line mouth place the pencil through quiet seal.

According to the technical scheme, the top of the shell is fixedly provided with the end cover, the end surface of the end cover is provided with the through hole II, and the through hole II is connected with the through hole I; the top fixed mounting of end cover has handle, pressure release hole, the pressure release hole is located one side of handle, pressure release hole can solve inside pressure and be less than outside pressure. The pressure release hole is sealed by the sealing plug in rainy days, the sealing plug can be removed in sunny days, and the pressure release hole enables the inside of the shell to be communicated with the outside.

According to the technical scheme, the outer sides of the shell and the end cover are uniformly provided with the arc grooves, and the arc grooves are used for reinforcing the heat dissipation area of the shell. When raining, the arc-shaped groove is used for dredging rainwater on the surface of the shell, so that the flow of the rainwater can be quickened, and the humidity of the shell can be indirectly reduced; when the heat dissipation mechanism operates on sunny days, air at the hollow cylinder flows from top to bottom (from the end cover to the shell) to drive air around the shell to take heat through the arc-shaped grooves.

According to the technical scheme, static seal is adopted between the circular arc hollow bodies and the hollow cylinder.

Compared with the prior art, the utility model has the following beneficial effects:

the heat dissipation mechanism is arranged, the double turbines drive the gas inside the shell to flow to contact the shell, and part of high-temperature gas is transmitted to the outside of the shell through the circular arc hollow body and the hollow cylinder; the arc hollow body and the hollow cylinder can realize insect prevention and water prevention effects;

the inner shell and the outer shell are arranged, the outer shell is half-wrapped with the inner shell, so that a large amount of external liquid can be prevented from entering the hollow cylinder, the width of the circulation port is small, gas at the hollow layer flows out from the circulation port, and low pressure is generated at the inner wall of the inner shell, so that a large amount of external air can rapidly pass through the hollow cylinder, and air near the shell rapidly flows, thereby indirectly realizing the acceleration of the heat dissipation rate of the shell;

by arranging the arc-shaped groove, when raining, the arc-shaped groove dredges rainwater on the surface of the shell, so that the flow of the rainwater can be quickened, and the humidity of the shell can be indirectly reduced; when the heat dissipation mechanism operates on sunny days, air at the hollow cylinder flows from top to bottom (from the end cover to the shell) to drive air around the shell to take heat through the arc-shaped grooves.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of the internal structure of a housing of the present utility model;

FIG. 2 is a schematic perspective view of a heat dissipating mechanism according to the present utility model;

FIG. 3 is a schematic perspective view of the hollow cylinder structure of the present utility model;

FIG. 4 is a schematic perspective view of the outer structure of the housing of the present utility model;

in the figure: 1. a housing; 11. a left line port; 12. a right line port; 13. an arc-shaped groove; 14. a first through hole; 2. an end cap; 21. a handle; 22. a pressure relief hole; 23. a second through hole; 41. twin turbines; 42. a circular arc hollow body; 43. a hollow cylinder; 431. an inner housing; 432. an outer housing; 433. a hollow layer; 434. a flow port; 5. a charger body.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the present utility model provides the following technical solutions: the utility model provides a closed inner loop heat dissipation's electric motor car charger, includes casing 1, and casing 1's inside is provided with heat dissipation mechanism, and heat dissipation mechanism includes two turbines 41, circular arc hollow body 42, cavity barrel 43; the circular arc hollow body 42 is embedded in the shell 1, the double turbine 41 is fixedly arranged at the inner wall of the shell 1, one side of the double turbine 41 is connected with the circular arc hollow body 42, the hollow cylinder 43 is positioned at the inner side of the circular arc hollow body 42 and is clamped with the circular arc hollow body 42, and the circular arc hollow body 42 and the hollow cylinder 43 are connected by adopting static sealing; the end face of the shell 1 is provided with a first through hole 14, and the inner wall of the first through hole 14 is in transition fit with the hollow cylinder 43. The charger body 5 is fixedly installed in the center of the inside of the casing 1, and the twin turbine 41 is located on one side of the charger body 5. During operation of the sunny charger body 5, the twin turbines 41 are operated, so that the gas in the shell 1 enters the circular arc hollow body 42 and then flows out of the hollow cylinder 43; the twin turbines 41 suck the gas to start the flow of the gas inside the housing 1, and the air closest to the charger body 5 accelerates the contact with the housing 1, thereby conducting heat dissipation.

As shown in fig. 3, wherein: the hollow cylinder 43 comprises an inner shell 431 and an outer shell 432, a hollow layer 433 is arranged between the inner shell 431 and the outer shell 432, the outer shell 432 is positioned in the first through hole 14, two sides of the outer shell 432 are clamped with the circular arc hollow body 42, the hollow layer 433 is connected with the inside of the circular arc hollow body 42, the bottom end of the inner shell 431 is fixedly connected with the outer shell 432, the top end of the outer shell 432 is provided with a support end, the support end is fixedly connected with the top end of the inner shell 431, and a circulation port 434 is arranged between the top end of the inner shell 431 and the outer shell 432. The outer shell 432 half-wraps the inner shell 431, so that a large amount of external liquid can be prevented from entering the hollow cylinder 43, the width of the ventilation opening 434 is smaller, the gas at the hollow layer 433 flows out from the ventilation opening 434, and low pressure is generated at the inner wall of the inner shell 431, so that a large amount of external air can quickly pass through the hollow cylinder 43, and the air near the shell 1 quickly flows, thereby indirectly realizing the acceleration of the heat dissipation rate of the shell 1.

As shown in fig. 4, a left wire port 11 and a right wire port 12 are provided on one side of the case 1, and the left wire port 11 and the right wire port 12 are placed with the wire harness by static seal. An end cover 2 is fixedly arranged at the top of the shell 1, a through hole II 23 is formed in the end face of the end cover 2, and the through hole II 23 is connected with the through hole I14; the top end of the end cover 2 is fixedly provided with a handle 21 and a pressure relief hole 22, the pressure relief hole 22 is positioned on one side of the handle 21, and the pressure relief hole 22 can solve the problem that the internal pressure is lower than the external pressure. The pressure release hole 22 is sealed by a sealing plug in rainy days, the sealing plug can be removed in sunny days, and the pressure release hole 22 enables the inside of the shell 1 to be communicated with the outside.

The outer sides of the shell 1 and the end cover 2 are uniformly provided with arc grooves 13, and the arc grooves 13 are used for reinforcing the heat dissipation area of the shell. When raining, the arc-shaped grooves 13 drain the rainwater on the surface of the shell 1, so that the flow of the rainwater can be quickened, and the humidity of the shell 1 can be indirectly reduced; when the sunny heat radiation mechanism is operated, air at the hollow cylinder 43 flows from top to bottom (from the end cover 2 to the shell 1), and drives air around the shell 1 to take heat away through the arc-shaped groove 13.

To sum up:

when the charger body 5 works on sunny days, the double turbines 41 operate, so that gas in the shell 1 enters the circular arc hollow body 42 and then flows out from the hollow layer 433 through the circulation port 434, low pressure is generated at the inner wall of the inner shell 431, a large amount of external air rapidly passes through the hollow cylinder 43, and air near the shell 1 rapidly flows, so that the heat dissipation rate of the shell 1 is indirectly accelerated; the air at the hollow cylinder 43 flows from top to bottom (from the end cap 2 to the housing 1) and brings the air around the housing 1 through the arc-shaped groove 13 to take away heat. And simultaneously the sealing plug is removed, and the pressure release hole 22 enables the inside of the shell 1 to be communicated with the outside. The twin turbines 41 suck the gas to start the flow of the gas inside the housing 1, and the air closest to the charger body 5 accelerates the contact with the housing 1, thereby conducting heat dissipation.

In rainy days, the heat dissipation mechanism does not work, the pressure release hole 22 is sealed through the sealing plug, the arc-shaped groove 13 is used for dredging rainwater on the surface of the shell 1, the flow of the rainwater can be quickened, and the humidity of the shell 1 is indirectly reduced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a closed inner loop heat dissipation's electric motor car charger, includes casing (1), its characterized in that: a heat dissipation mechanism is arranged in the shell (1), and comprises a double turbine (41), an arc hollow body (42) and a hollow cylinder (43); the circular arc hollow body (42) is fixedly arranged in the shell (1), the double turbines (41) are fixedly arranged at the inner wall of the shell (1), one sides of the double turbines (41) are connected with the circular arc hollow body (42), and the hollow cylinder (43) is positioned at the inner side of the circular arc hollow body (42) and is clamped with the circular arc hollow body (42); the end faces of the shell (1) are provided with first through holes (14), and the inner walls of the first through holes (14) are in transition fit with the hollow cylinder body (43).

2. The closed type internal circulation heat dissipation electric vehicle charger according to claim 1, wherein: the hollow cylinder body (43) comprises an inner shell (431) and an outer shell (432), a hollow layer (433) is arranged between the inner shell (431) and the outer shell (432), the outer shell (432) is located in the first through hole (14), two sides of the outer shell (432) are clamped with the circular arc hollow body (42), the hollow layer (433) is connected with the inner part of the circular arc hollow body (42), the bottom end of the inner shell (431) is fixedly connected with the outer shell (432), a support end is arranged at the top end of the outer shell (432), the support end is fixedly connected with the top end of the inner shell (431), and a circulation port (434) is formed between the top end of the inner shell (431) and the outer shell (432).

3. The closed type internal circulation heat dissipation electric vehicle charger according to claim 2, wherein: the novel wire harness charging device is characterized in that a charger body (5) is fixedly arranged in the shell (1), a left wire port (11) and a right wire port (12) are respectively formed in one side of the shell (1), and wire harnesses are placed in the left wire port (11) and the right wire port (12) through static sealing.

4. A closed internal circulation heat dissipation electric vehicle charger as defined in claim 3, wherein: an end cover (2) is fixedly arranged at the top of the shell (1), a through hole II (23) is formed in the end face of the end cover (2), and the through hole II (23) is connected with the through hole I (14); the top of end cover (2) fixed mounting has handle (21), pressure release hole (22) are located one side of handle (21), pressure release hole (22) can solve inside pressure and be less than outside pressure.

5. The sealed internal heat dissipating electric vehicle charger of claim 4, wherein: the outer sides of the shell (1) and the end cover (2) are uniformly provided with arc grooves (13), and the arc grooves (13) are used for reinforcing the heat dissipation area of the shell (1).

6. The sealed internal heat dissipating electric vehicle charger of claim 5, wherein: static sealing is adopted between the circular arc hollow body (42) and the hollow cylinder body (43).