CN216795540U

CN216795540U - Heat dissipation device for packaging heat-conducting graphite flake-soaking motor controller

Info

Publication number: CN216795540U
Application number: CN202122748315.2U
Authority: CN
Inventors: 姜松井; 姚欣; 李飞
Original assignee: Henan Jiachen Intelligent Control Co Ltd
Current assignee: Henan Jiachen Intelligent Control Co Ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-06-21
Anticipated expiration: 2031-11-11

Abstract

The utility model belongs to the technical field of packaging devices, and particularly relates to a heat-conducting graphite sheet soaking motor controller packaging heat dissipation device which comprises a shell, a PCB arranged in the shell and an MOS (metal oxide semiconductor) tube connected with the PCB, wherein a graphite sheet is arranged between the PCB and the bottom of the shell, a notch for embedding the MOS tube is formed in the PCB, and the MOS tube is embedded in the notch and is abutted against the graphite sheet. According to the utility model, the MOS tube generating heat is embedded into the opening arranged on the PCB, and the MOS tube is abutted against the graphite sheet to realize direct conduction of heat, so that the technical purposes of improving heat transfer efficiency and reducing heat accumulation of the motor controller are achieved.

Description

Heat dissipation device for packaging heat-conducting graphite flake-soaking motor controller

Technical Field

The utility model belongs to the technical field of packaging devices, and particularly relates to a heat-conducting graphite sheet soaking motor controller packaging heat dissipation device.

Background

The core unit motor controller of the electric automobile is developed towards high frequency, high power, high integration degree, miniaturization and the like. However, electronic components related to the motor controller may have large energy loss during the working process, and may also generate a large amount of heat, which may cause the temperature of the electronic components of the motor controller to rise sharply during the working process, thereby increasing the risk of thermal failure of the components, which may bring a great challenge to the reliability of the product.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the heat conducting and graphite sheet soaking motor controller packaging and radiating device.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a heat conduction graphite flake soaking's machine controller encapsulates heat abstractor, should encapsulate heat abstractor includes the casing, set up in PCB board and connection in the casing the MOS pipe of PCB board, the PCB board with be provided with the graphite flake between the bottom of casing, be provided with on the PCB board and be used for supplying the breach of MOS pipe embedding, the MOS pipe embedding in the breach and butt in the graphite flake.

Preferably, the graphite sheet is adhered in the housing by a thermally conductive adhesive.

Preferably, an insulating layer is added between the graphite sheet and the PCB and between the graphite sheet and the MOS tube.

Preferably, the graphite sheet, the PCB and the MOS tube are all connected by heat conducting glue.

Preferably, the MOS transistor is soldered to the PCB board through a pin thereof.

Preferably, the housing is made of copper, aluminum or a heat-conducting alloy.

The technical scheme adopted by the utility model has the beneficial effects that:

the MOS tube capable of generating heat on the motor controller directly conducts the heat to the graphite sheet with super-strong heat conduction capability, thereby being beneficial to quickly dissipating the heat and reducing the phenomenon that the motor controller fails due to heat accumulation. The graphite flake is arranged between the PCB and the bottom of the shell, and has super heat conductivity and high heat transfer efficiency, so that the accumulation of high heat on the motor controller is reduced; through set up the opening on the PCB board, the MOS pipe embedding butt graphite flake in the opening can be with the heat direct conduction who produces to the graphite flake on, promotes heat transfer efficiency.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a thermally conductive graphite sheet heat spreader for a motor controller package;

fig. 2 is an exploded view of an embodiment of a thermally conductive graphite sheet heat spreader with heat spreader for motor controller packaging.

In the figures 1 and 2, 1-shell, 2-MOS tube, 21-pin, 3-PCB board, 31-notch, 4-graphite sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The specific embodiment is as follows:

example 1, as shown in fig. 1 and 2, a heat sink device for heat-conducting graphite sheet-soaked motor controller package includes a housing 1, a PCB 3, and a MOS transistor 2. The upper end of the shell 1 is open and has a hollow cavity. PCB board 3 sets up in casing 1, and MOS pipe 2 connects PCB board 3. Specifically, one or more MOS transistors 2 may be provided.

In the present embodiment, two MOS transistors 2 are provided.

A graphite sheet 4 is arranged between the bottom of the shell 1 and the PCB 3, and the graphite sheet 4 has super heat conductivity in the plane direction.

Two notches 31 are arranged on the PCB 3, and the shape and the size of the notches 31 are matched with the MOS tube 2. MOS pipe 2 then imbeds in breach 31, and direct butt is on graphite flake 4, and the heat that MOS pipe 2 produced need not to transmit through PCB board 3 like this, but on direct conduction to graphite flake 4, has promoted heat conduction efficiency.

This embodiment a heat conduction graphite flake soaking's machine controller encapsulation heat abstractor is when using, and MOS pipe 2 produced heat in the machine controller working process because MOS pipe 2 directly supports graphite flake 4, can directly conduct the heat to graphite flake 4 on, has promoted heat transfer efficiency, has reduced the condition of the high heat gathering of machine controller studio. Meanwhile, the graphite sheet 4 has super strong heat conductivity in the plane direction, can conduct heat quickly and dissipate the heat, and reduces the heat accumulation.

Further, one side that graphite flake 4 is close to the 1 bottom of casing is provided with the heat conduction and glues the subsides, and graphite flake 4 bonds in casing 1 bottom through the heat conduction glues, has promoted the connection reliability.

Further, since the graphite sheet 4 has conductivity, an insulating layer is provided between the graphite sheet 4 and the PCB board 3 and the MOS tube 2.

Furthermore, the connection between the PCB 3 and the graphite sheet 4 and between the MOS tube 2 and the graphite sheet 4 is realized by heat-conducting glue.

Furthermore, a pin 21 is provided on the MOS transistor 2, and the pin 21 is connected to the PCB 3 by soldering.

Further, to ensure the heat dissipation effect of the motor controller, the housing 1 is made of a material with good thermal conductivity, including but not limited to copper, aluminum, and a heat-conducting alloy material.

The utility model is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the utility model is not limited by the above-mentioned manner, and it is within the scope of the utility model to adopt various insubstantial modifications of the technical solution of the utility model or to apply the concept and technical solution of the utility model directly to other occasions without modification.

Claims

1. The utility model provides a heat conduction graphite flake soaking's machine controller encapsulates heat abstractor, should encapsulate heat abstractor includes the casing, set up in PCB board and connection in the casing the MOS pipe of PCB board, its characterized in that, the PCB board with be provided with the graphite flake between the bottom of casing, be provided with on the PCB board and be used for supplying the breach of MOS pipe embedding, the MOS pipe embedding in the breach and butt in the graphite flake.

2. The thermally conductive graphite sheet soaked motor controller packaged heat sink of claim 1, wherein the graphite sheet is adhered within the housing by a thermally conductive adhesive.

3. The thermally conductive graphite sheet soaked motor controller packaged heat sink of claim 1, wherein an insulating layer is added between the graphite sheet and the PCB and the MOS transistor.

4. The soaked motor controller packaging heat dissipation device of claim 3, wherein the graphite sheet is adhesively connected to the PCB and the MOS tube by a heat conducting glue.

5. The thermally conductive graphite sheet soaked motor controller packaged heat dissipation device of claim 1, wherein the MOS transistor is soldered to the PCB board by its pins.

6. The thermally conductive graphite sheet soaked motor controller packaged heat sink of any one of claims 1-5, wherein the housing is made of copper, aluminum or a thermally conductive alloy.