CN219437469U

CN219437469U - Heat radiation structure of electric vehicle controller

Info

Publication number: CN219437469U
Application number: CN202320670607.5U
Authority: CN
Inventors: 顾军; 郭玉林; 虞贵远
Original assignee: Jiangsu Huayu Electric Appliance Technology Co ltd
Current assignee: Jiangsu Huayu Electric Appliance Technology Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-07-28
Anticipated expiration: 2033-03-30

Abstract

The utility model discloses a heat radiation structure of an electric vehicle controller, which comprises: the outer surface of the controller shell is provided with a plurality of radiating fins, and the inside of the controller shell is provided with a radiating cavity; the lower wall of the heat dissipation cavity is connected with the controller shell, and gaps are reserved between other cavity walls of the heat dissipation cavity and the inner surface of the controller shell; the heat dissipation cavity is also provided with a plurality of first heat dissipation holes, a plurality of second heat dissipation holes and a plurality of third heat dissipation holes, the first heat dissipation holes are formed in the left wall of the heat dissipation cavity, the second heat dissipation holes are formed in the right wall of the heat dissipation cavity, and the third heat dissipation holes are formed in the lower wall of the heat dissipation cavity and penetrate through the controller shell; the controller shell, the radiating fins and the radiating cavity are all made of heat-conducting metal materials; the upper surface of the heat dissipation cavity is also provided with a plurality of mounting grooves; the surface of the radiating fin is also provided with a plurality of stripe grooves. The heat radiation structure can radiate heat of the interior of the electric vehicle controller in a targeted manner, and the heat radiation effect is excellent.

Description

Heat radiation structure of electric vehicle controller

Technical Field

The utility model relates to a heat dissipation structure, in particular to a heat dissipation structure of an electric vehicle controller.

Background

The electric vehicle controller is a core control device for controlling the starting, running, advancing and retreating, speed and stopping of the electric vehicle motor and other electronic devices of the electric vehicle.

The electric vehicle controller is internally provided with a circuit board and other electrical components, electronic components such as a resistor, a capacitor, a diode and a control chip are integrated on the circuit board, the components can generate heat during operation, the heat is easy to accumulate in the controller, if good heat dissipation is not obtained, the normal operation of the electronic components can be affected by high temperature generated by the heat, and the service life of the electronic components is reduced.

The existing electric vehicle controller has the defects of simple heat dissipation structure, no pertinence and poor heat dissipation effect.

Disclosure of Invention

Based on the above, the utility model discloses a heat dissipation structure of an electric vehicle controller, which comprises a controller shell, a heat dissipation cavity and a plurality of heat dissipation fins; the controller comprises a controller shell, wherein a plurality of radiating fins are arranged on the outer surface of the controller shell, the radiating fins are integrally connected with the controller shell, and a radiating cavity is arranged in the controller shell; the lower wall of the heat dissipation cavity is integrally connected with the controller shell, and gaps are reserved between other cavity walls of the heat dissipation cavity, including left and right walls and an upper wall, and the corresponding inner surfaces of the controller shell; the heat dissipation cavity is also provided with a plurality of first heat dissipation holes, a plurality of second heat dissipation holes and a plurality of third heat dissipation holes, the first heat dissipation holes are formed in the left wall of the heat dissipation cavity, the second heat dissipation holes are formed in the right wall of the heat dissipation cavity, and the third heat dissipation holes are formed in the lower wall of the heat dissipation cavity and penetrate through the controller shell;

a circuit board is further arranged on the right side of the heat dissipation cavity in the controller shell, and divides the inner space of the controller shell into two parts; the arrangement of the first radiating holes can avoid heat accumulation in the space above the circuit board, the arrangement of the second radiating holes can avoid heat accumulation in the space below the circuit board, and the third radiating holes are used for communicating the radiating cavity with the external space, so that heat collected in the radiating cavity can be rapidly emitted.

Preferably, the upper surface of the heat dissipation cavity is further provided with a plurality of mounting grooves, and other electrical components are mounted in the mounting grooves, so that the heat dissipation cavity can provide mounting positions for the electrical components and is convenient for the electrical components to dissipate heat directly through the heat dissipation cavity.

Further, a dustproof metal net is further arranged in the radiating cavity, so that dust is prevented from entering the controller shell from the radiating holes.

Preferably, the controller housing, the radiating fin and the radiating cavity are all made of heat-conducting metal, and can be specifically made of aluminum or copper, and the heat in the controller housing can be quickly transferred to the radiating fin by the metal with excellent heat conduction performance.

Further, a plurality of stripe grooves are further formed in the surface of the radiating fin, the surface area of the radiating fin can be increased through the stripe grooves, so that the radiating efficiency of heat is improved, and the stripe grooves can be formed in the outer surface of the controller shell, so that the radiating efficiency of the controller shell is improved.

Through the technical scheme, the utility model at least comprises the following beneficial effects:

the heat dissipation structure can pertinently dissipate heat in the electric vehicle controller, and is excellent in heat dissipation effect; the heat dissipation cavity is communicated with the external space through the third heat dissipation hole, and can collect heat in the controller through heat transfer, so that heat accumulation in the controller can be avoided; the heat accumulation in the space above the circuit board can be avoided through the design of the first heat dissipation holes, and the heat accumulation in the space below the circuit board can be avoided through the design of the second heat dissipation holes, so that the circuit board has pertinence; through the design of heat dissipation cavity, can provide the mounted position for other electrical components simultaneously, still be convenient for they directly dispel the heat through the heat dissipation cavity, have pertinence.

Drawings

FIG. 1 is an overall schematic diagram of an electric vehicle controller;

FIG. 2 is a cross-sectional view of an electric vehicle controller;

FIG. 3 is a schematic view of the internal structure of an electric vehicle controller;

reference numerals illustrate: the controller comprises a controller shell, a heat radiating fin, a heat radiating cavity, a circuit board, a mounting groove, a stripe groove, a first heat radiating hole, a second heat radiating hole and a third heat radiating hole, wherein the heat radiating cavity is formed in the controller shell, the heat radiating fin is arranged in the controller shell, the heat radiating cavity is arranged in the controller shell, the circuit board is arranged in the controller shell, the heat radiating fin is arranged in the controller shell, the heat radiating cavity is arranged in the controller shell, the heat radiating groove is arranged in the mounting groove, the heat radiating hole is arranged in the controller shell.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, which are simplified schematic diagrams illustrating the basic structure of the present utility model only by way of illustration, and thus show only the constitution related to the present utility model.

In the description of the present application, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and it is possible for those of ordinary skill in the art to understand the specific meaning of the above terms according to the specific circumstances.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to the electric vehicle controller of fig. 1, a relatively airtight space is formed inside a controller housing, and a good heat dissipation structure is required.

A heat dissipation structure of an electric vehicle controller, referring to fig. 2 or 3, includes a controller housing 1, a heat dissipation cavity 3 and a plurality of heat dissipation fins 2; the controller comprises a controller shell 1, wherein a plurality of radiating fins 2 are arranged on the outer surface of the controller shell 1, the radiating fins 2 are integrally connected with the controller shell 1, and a radiating cavity 3 is arranged in the controller shell 1; the lower wall of the heat dissipation cavity 3 is integrally connected with the controller shell 1, and gaps are reserved between other cavity walls of the heat dissipation cavity 3, including left and right walls and upper walls, and corresponding inner surfaces of the controller shell 1.

The heat dissipation cavity 3 is further provided with a plurality of first heat dissipation holes 11, a plurality of second heat dissipation holes 12 and a plurality of third heat dissipation holes 13, the first heat dissipation holes 11 are formed in the left wall of the heat dissipation cavity 3, the second heat dissipation holes 12 are formed in the right wall of the heat dissipation cavity 3, and the third heat dissipation holes 13 are formed in the lower wall of the heat dissipation cavity 3 and penetrate through the controller shell 1. And a dustproof metal net is further arranged in the heat dissipation cavity 3, so that dust can be prevented from entering the controller shell 1 from the heat dissipation holes.

The right side of the heat dissipation cavity 3 is also provided with a circuit board 4 in the controller shell 1, and the circuit board 4 divides the internal space of the controller shell 1 into two parts; the arrangement of the first heat dissipation holes 11 can avoid heat accumulation in the space above the circuit board 4, the arrangement of the second heat dissipation holes 12 can avoid heat accumulation in the space below the circuit board 4, and the third heat dissipation holes 13 are used for communicating the heat dissipation cavity 3 with the external space and can quickly dissipate heat collected in the heat dissipation cavity 3.

The upper surface of the heat dissipation cavity 3 is also provided with a plurality of mounting grooves 5, and other electrical components are mounted in the mounting grooves 5, so that the arrangement of the heat dissipation cavity 3 can provide mounting positions for the electrical components and is convenient for the electrical components to dissipate heat directly through the heat dissipation cavity 3.

The controller shell 1, the radiating fins 2 and the radiating cavity 3 are made of heat conducting metal, and can be specifically made of aluminum or copper, and the heat in the controller shell 1 can be quickly transferred to the radiating fins 2 by metal with excellent heat conducting performance. The surface of the radiating fin 2 is also provided with a plurality of stripe grooves 6, and the stripe grooves 6 can increase the surface area of the radiating fin 2, so that the radiating efficiency of heat is improved; the outer surface of the controller housing 1 may also be provided with stripe grooves 6 to improve the heat dissipation efficiency of the controller housing 1.

The foregoing description is only illustrative of the preferred embodiments of the present utility model, and various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the present utility model, and it is intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the utility model.

Claims

1. The utility model provides a heat radiation structure of electric motor car controller which characterized in that: comprises a controller shell (1), a heat dissipation cavity (3) and a plurality of heat dissipation fins (2); the controller comprises a controller shell (1), wherein a plurality of radiating fins (2) are arranged on the outer surface of the controller shell (1), and a radiating cavity (3) is arranged in the controller shell (1); the lower wall of the heat dissipation cavity (3) is connected with the controller shell (1), and gaps are reserved between other cavity walls of the heat dissipation cavity (3) and the inner surface of the controller shell (1); the heat dissipation cavity (3) is further provided with a plurality of first heat dissipation holes (11), a plurality of second heat dissipation holes (12) and a plurality of third heat dissipation holes (13), the first heat dissipation holes (11) are formed in the left wall of the heat dissipation cavity (3), the second heat dissipation holes (12) are formed in the right wall of the heat dissipation cavity (3), and the third heat dissipation holes (13) are formed in the lower wall of the heat dissipation cavity (3) and penetrate through the controller shell (1).

2. The heat dissipation structure of an electric vehicle controller according to claim 1, wherein: the upper surface of the heat dissipation cavity (3) is also provided with a plurality of mounting grooves (5).

3. The heat dissipation structure of an electric vehicle controller according to claim 1, wherein: and a dustproof metal net is arranged in the radiating cavity (3).

4. A heat radiation structure of an electric vehicle controller according to claim 1, 2 or 3, characterized in that: the controller shell (1), the radiating fins (2) and the radiating cavity (3) are all made of heat-conducting metal materials.

5. The heat dissipation structure of an electric vehicle controller as set forth in claim 4, wherein: a plurality of stripe grooves (6) are also formed in the surface of the radiating fin (2).