CN220874949U

CN220874949U - Electric control composite cooling heat radiation structure and vehicle

Info

Publication number: CN220874949U
Application number: CN202322433430.XU
Authority: CN
Inventors: 杨花宇; 魏向东
Original assignee: Suzhou Blue Stone Tech Co ltd
Current assignee: Suzhou Blue Stone Tech Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-04-30
Anticipated expiration: 2033-09-07

Abstract

The utility model provides a heat radiation structure of electric control composite cooling and a vehicle, and relates to the technical field of heat management related equipment, comprising a base component and a heat exchange piece, wherein the base component is used for being connected with an external PCB (printed circuit board), and is provided with a heat radiation part which is used for radiating heat to the outside; the heat exchange piece is connected with the base component, a containing space is arranged in the heat exchange piece, a solid-liquid phase-change material is arranged in the containing space, and the solid-liquid phase-change material is used for absorbing heat of the PCB, melting into a liquid state and exchanging heat with the heat dissipation part. The utility model relieves the technical problem of lower cooling efficiency caused by the fact that the cooling water channel is far away from the heat source in the prior art.

Description

Electric control composite cooling heat radiation structure and vehicle

Technical Field

The utility model relates to the technical field of heat management related equipment, in particular to a heat dissipation structure for electric control composite cooling and a vehicle.

Background

Since the 21 st century, new energy industries developed rapidly, which resulted from the development of new energy industries, the support of national energy saving and emission reduction policies, and the change in user demands.

The ECU is used as an electronic control unit (hereinafter referred to as electric control) and is used for controlling various input data and running states of the vehicle at any time and any place, calculating information transmitted by various sensors according to preset programs, and sending various parameters to various corresponding executing mechanisms after processing, so that various preset control functions are executed, and normal use of functions of the vehicle is ensured.

However, the electric control of the whole vehicle also belongs to a part of heat management, and the metal oxide semiconductor field effect transistor (mos) in the electric control of the whole vehicle generates heat, and the longitudinal heat conductivity coefficient of the PCB below is smaller, so that heat is concentrated, the junction temperature of the mos is too high, and danger is caused, so that the electric control of the temperature of the mos is particularly important.

Therefore, the whole heating component of the ECU can be an MOS tube, a capacitor and the like. The MOS tube is a main heat source, is generally centralized in arrangement mode, contacts with a PCB with smaller heat conductivity coefficient, is surrounded by a shell, and has low internal heat conductivity coefficient, and a common cooling scheme is divided into water cooling and air cooling.

In the use process, most of heat concentrated by the MOS tube is conducted to the base by the PCB, and the air cooling is to increase the surface heat exchange coefficient of the base by the heat dissipation ribs or further add a fan, so that the heat exchange capacity is improved. And water cooling is generally to make a water channel on the base, and water circulation takes away heat. The water-cooled base is far from the heat source, and heat is mainly conducted through a heat transfer path of the MOS tube, the aluminum substrate, the base and water, so that the cooling efficiency is low.

Disclosure of utility model

The utility model aims to provide an electric control composite cooling radiating structure so as to solve the technical problem of low cooling efficiency caused by the fact that a cooling water channel is far away from a heat source in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a heat radiation structure of electric control composite cooling, which comprises a base component and a heat exchange piece, wherein the base component is used for being connected with an externally connected PCB (printed circuit board), and is provided with a heat radiation part which is used for radiating heat to the outside;

the heat exchange piece with the base subassembly is connected, just be equipped with the accommodation space in the heat exchange piece, be equipped with solid-liquid phase change material in the accommodation space, solid-state solid-liquid phase change material is used for absorbing after the heat of PCB board melts into liquid, and with the heat dissipation portion heat transfer.

Further, the accommodating space is of an annular structure, and the solid-liquid phase-change material is arranged at the top of the annular accommodating space and falls into the bottom of the accommodating space after being heated and melted.

Further, the base assembly comprises a base body and a bottom plate, wherein the base body is connected with the bottom plate, and the heat dissipation part is arranged between the base body and the bottom plate;

The base body is connected with the heat exchange piece, and the base body is used for being connected with the PCB.

Further, a heat exchange groove is formed in one surface, away from the bottom plate, of the base body;

the heat exchange piece is connected with the heat exchange groove.

Further, the base body deviates from the one side of heat transfer groove has seted up the cell body, be equipped with in the cell body the radiating portion, in the cell body the radiating portion be used for with the heat transfer piece heat transfer.

Further, the heat dissipation part is provided with cooling liquid, the cooling liquid is arranged in the groove body, and the cooling liquid is used for exchanging heat with the heat exchange piece.

Further, the base body further comprises a liquid inlet pipe and a liquid outlet pipe, one end of the liquid inlet pipe is connected with the tank body, and the other end of the liquid inlet pipe is connected with external cooling liquid supply equipment;

One end of the liquid outlet pipe is connected with one end of the tank body, which is far away from the liquid inlet pipe, and the other end of the liquid outlet pipe is used for discharging the cooling liquid after heat exchange.

Further, the tank body is of an S-shaped structure, a baffle is arranged in the tank body, and the baffle is distributed along the extending direction of the tank body so as to divide the tank body into two sub-tank bodies.

Further, the electric control composite cooling heat dissipation structure further comprises a cover body, wherein the cover body is connected with the base assembly, and the cover body is used for being covered outside the heat exchange piece and the PCB.

In a second aspect, the present utility model provides a vehicle comprising an electrically controlled compound cooling heat dissipating structure as described in any one of the preceding embodiments.

The utility model can realize the following beneficial effects:

The utility model provides a heat radiation structure of electric control composite cooling, which comprises a base component and a heat exchange piece, wherein the base component is used for being connected with an externally connected PCB (printed circuit board), and is provided with a heat radiation part used for radiating heat to the outside; the heat exchange piece is connected with the base component, a containing space is arranged in the heat exchange piece, a solid-liquid phase-change material is arranged in the containing space, and the solid-liquid phase-change material is used for absorbing heat of the PCB, melting into a liquid state and exchanging heat with the heat dissipation part.

In the utility model, the PCB board is arranged on the base component, and when the PCB board radiates heat, at the moment, the solid-liquid phase-change material in the heat exchange piece arranged on the base component is heated and melted to form a liquid heat exchange material, and the liquid heat exchange material falls on the bottom of the accommodating space from the top of the accommodating space; at this time, the liquid heat exchange material transfers heat to the base assembly through the heat exchange member, and the base assembly dissipates heat through the heat dissipation portion.

Compared with the prior art, the electronic control composite cooling heat dissipation structure provided by the utility model has the advantages that after the solid-liquid phase-change material is heated and liquefied, the heat is exchanged with the heat dissipation part of the base assembly, so that the heat emitted by the PCB is conducted rapidly and efficiently, the one-time heat exchange is realized, and the overall heat dissipation efficiency of the equipment is greatly improved.

In conclusion, the utility model at least relieves the technical problem of lower cooling efficiency caused by the fact that the cooling water channel is far away from the heat source in the prior art.

In addition, the second aspect of the utility model also provides a vehicle, comprising the electric control composite cooling radiating structure provided by the first aspect; because the vehicle provided by the utility model comprises the electric control composite cooling heat dissipation structure provided by the first aspect, the vehicle provided by the utility model can achieve all the beneficial effects achieved by the electric control composite cooling heat dissipation structure provided by the first aspect.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a heat dissipation structure for electric control composite cooling according to an embodiment of the present utility model;

Fig. 2 is a schematic top view of a heat dissipation structure of electric control composite cooling according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the cross-sectional structure A-A in FIG. 2;

Fig. 4 is a schematic perspective view of an internal structure of a heat dissipation structure for electric control composite cooling according to an embodiment of the present utility model;

fig. 5 is a schematic side view of a cooling channel of a heat dissipation structure with electric control composite cooling according to an embodiment of the present utility model when a solid-liquid phase change material is solid;

fig. 6 is a schematic side view of a cooling channel of a heat dissipation structure with electric control composite cooling according to an embodiment of the present utility model when a solid-liquid phase change material is in a liquid state;

Fig. 7 is a schematic structural diagram of a tank portion of a heat dissipation structure for electric control composite cooling according to an embodiment of the present utility model;

Fig. 8 is a schematic perspective view of a water channel portion of an electrically controlled composite cooling heat dissipation structure according to an embodiment of the present utility model.

Icon: 1-a base assembly; 11-a base body; 111-a tank body; 112-a liquid inlet pipe; 113-a liquid outlet pipe; 114-a heat exchange groove; 12-a bottom plate; 2-a cover body; 3-a heat exchange member; 31-a solid phase change material; 32-a liquid phase change material; 4-a PCB board; 5-a water channel; 51-a water inlet end; 52-water outlet end.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Example 1

The embodiment provides a heat dissipation structure of electric control composite cooling, referring to fig. 1, 5 and 6, the heat dissipation structure of electric control composite cooling comprises a base component 1 and a heat exchange piece 3, the base component 1 is used for being connected with an external PCB 4, the base component 1 is provided with a heat dissipation part, and the heat dissipation part is used for dissipating heat to the outside; the heat exchange piece 3 is connected with the base component 1, and is equipped with the accommodation space in the heat exchange piece 3, is equipped with solid-liquid phase change material in the accommodation space, and solid-liquid phase change material is used for melting into liquid after absorbing the heat of PCB board 4 to with the heat dissipation portion heat transfer.

The embodiment of the utility model at least relieves the technical problem of lower cooling efficiency caused by the fact that the cooling water channel is far away from the heat source in the prior art.

In the embodiment of the utility model, the PCB 4 is arranged on the base assembly 1, and when the PCB 4 radiates heat during use, the solid-liquid phase-change material in the heat exchange piece 3 arranged on the base assembly 1 is heated and melted to form the liquid phase-change material 32, and the liquid phase-change material 32 falls on the bottom of the accommodating space from the top of the accommodating space; at this time, the liquid phase change material 32 transfers heat to the base assembly 1 through the heat exchange member, and the base assembly 1 dissipates heat through the heat dissipation portion.

Compared with the prior art, the electric control composite cooling heat dissipation structure provided by the embodiment of the utility model realizes the rapid and efficient conduction of heat emitted by the PCB by heat exchange with the heat dissipation part of the base assembly 1 after the solid-liquid phase-change material is heated and liquefied, realizes the one-time heat exchange, and greatly improves the overall heat dissipation efficiency of the equipment.

In an alternative implementation manner of this embodiment, referring to fig. 4, 5 or 6, the accommodating space is in an annular structure, and the solid-liquid phase-change material is disposed at the top of the annular accommodating space and falls into the bottom of the accommodating space after being heated and melted.

Specific: the heat exchange piece 3 is of an annular structure with rectangular upper and lower bottom surfaces, and the accommodating space arranged in the heat exchange piece is of an annular structure; when in use, the solid phase-change material 31 is fixed at the top of the accommodating space, namely at the top of the inner side of the heat exchange piece 3, after the solid phase-change material absorbs heat emitted by the PCB 4, the solid phase-change material is melted into the liquid phase-change material 32, and flows to the bottom of the accommodating space, and the bottom of the heat exchange piece 3 is connected with the base assembly 1, so that the liquid phase-change material 32 exchanges heat with the base assembly 1 through the heat exchange piece 3.

In an alternative implementation of the present embodiment, referring to fig. 3, the base assembly 1 includes a base body 11 and a bottom plate 12, the base body 11 is connected with the bottom plate 12, and a heat dissipation portion is disposed between the base body 11 and the bottom plate 12; the base body 11 is connected with the heat exchange member 3, and the base body 11 is used for being connected with the PCB board 4.

Specific: the base body 11 is connected with the bottom plate 12, and a heat dissipation part is arranged between the base body 11 and the bottom plate 12; the base body 11 is connected with the heat exchange member 3, and the base body 11 is used for being connected with the PCB board 4. Preferably, the base body 11 and the bottom plate 12 are connected by a connecting member such as a rivet, and a sealing member may be provided at a connecting seam of the base body 11 and the bottom plate 12 for sealing a space therebetween.

Further, referring to fig. 3, a heat exchange groove 114 is formed on a surface of the base body 11 facing away from the bottom plate 12; the heat exchange member 3 is connected to the heat exchange groove 114.

Specific: the heat exchange groove 114 is arranged on the upper surface of the base body 11, the heat exchange piece 3 is of a cuboid annular structure, when in use, the heat exchange piece 3 is inserted into the heat exchange groove 114, and the heat exchange groove 114 can limit the heat exchange piece 3 in the vertical direction; and after the heat exchange piece 3 is inserted into the heat exchange groove 114, the bottom of the heat exchange piece 3 is positioned in the base body 11, so that the heat exchange effect is better.

Further, referring to fig. 3 or 7, a groove body 111 is provided on a surface of the base body 11 facing away from the heat exchange groove 114, a heat dissipation portion is provided in the groove body 111, and the heat dissipation portion in the groove body 111 is used for exchanging heat with the heat exchange member 3.

Specific: a heat dissipation part is arranged in the groove body 111, and the heat dissipation part in the groove body 111 is used for exchanging heat with the heat exchange piece 3; preferably, the heat dissipation part may be a cooling liquid disposed in the tank 111, and the cooling liquid forms a water channel 5 in the tank 111 for exchanging heat with the liquid phase-change material 32 in the heat exchange member 3, thereby realizing cooling.

Further, referring to fig. 3 or 7, the heat radiating portion is provided with a coolant, which is provided in the tank 111, and the coolant is used for exchanging heat with the heat exchanging member 3.

Specific: the cooling liquid is arranged in the groove body 111 and is used for exchanging heat with the heat exchange piece 3; preferably, the cooling liquid exchanges heat with the liquid phase-change material 32 inside the heat exchange member 3, the liquid phase-change material 32 is obtained by melting the solid phase-change material 31 after absorbing heat, and the phase-change material can be paraffin or other materials.

Further, referring to fig. 7, the base body 11 further includes a liquid inlet pipe 112 and a liquid outlet pipe 113, wherein one end of the liquid inlet pipe 112 is connected with the tank 111, and the other end is used for being connected with an external cooling liquid supply device; one end of the liquid outlet pipe 113 is connected with one end of the tank body 111 away from the liquid inlet pipe 112, and the other end of the liquid outlet pipe 113 is used for discharging the cooling liquid after heat exchange.

Specific: one end of the liquid inlet pipe 112 is connected with the tank body 111, and the other end is used for being connected with external cooling liquid supply equipment; one end of the liquid outlet pipe 113 is connected with one end of the tank body 111 away from the liquid inlet pipe 112, and the other end of the liquid outlet pipe 113 is used for discharging the cooling liquid after heat exchange. Preferably, the cooling liquid enters the tank 111 from the external liquid supply device through the liquid inlet pipe 112, and is discharged through the liquid outlet pipe 113 after heat exchange with the liquid phase-change material 32 in the heat exchange member 3 is completed, so that the cooling liquid in the tank 111 always maintains a proper temperature in the use process.

In an alternative implementation manner of this embodiment, referring to fig. 7 or fig. 8, the tank 111 has an S-shaped structure, and baffles are disposed in the tank 111 and distributed along the extending direction of the tank 111, so as to divide the tank 111 into two sub-tanks.

Specific: the groove body 111 is of an S-shaped structure, so that the water channel 5 is of an S-shaped structure, one end of the water channel 5 is provided with a water inlet end 51, and the other end is provided with a water outlet end 52; the S-shaped water channel 5 enables the cooling liquid to exchange heat with the heat exchange piece 3 sufficiently, so that the heat exchange is more thorough; and the baffles are distributed along the extending direction of the tank body 111, and heat can be extended through the baffles, so that cooling liquid at the middle lower part of the tank body 111 exchanges heat with the cooling liquid, and the cooling effect is better.

In an alternative implementation manner of this embodiment, referring to fig. 1 or fig. 2, the electrically controlled composite cooling heat dissipation structure further includes a cover body 2, where the cover body 2 is connected to the base assembly 1, and the cover body 2 is used for covering the heat exchange member 3 and the PCB board 4.

Specific: the cover body 2 is connected with the base assembly 1, and the cover body 2 is used for being covered outside the heat exchange piece 3 and the PCB 4; preferably, the cover body 2 is detachably connected with the base assembly 1, and after the use is finished, the heat exchange piece 3 after the solid phase change material 31 is melted into the liquid phase change material 32 through taking down the cover body 2 is replaced.

Example two

The present embodiment provides a vehicle including the electrically controlled compound cooling heat dissipation structure provided in any one of the alternative embodiments of the present embodiment.

Since the vehicle provided in this embodiment includes the electrically controlled composite cooling heat dissipation structure described in the first embodiment, the vehicle provided in this embodiment can achieve all the beneficial effects achieved by the electrically controlled composite cooling heat dissipation structure in the first embodiment, and the specific structure and the effects that can be achieved can be obtained by referring to each optional or preferred implementation manner in the first embodiment.

Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are only required to be seen with each other; the above embodiments in the present specification are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The electric control composite cooling heat dissipation structure is characterized by comprising a base assembly (1) and a heat exchange piece (3), wherein the base assembly (1) is used for being connected with an external PCB (4), and the base assembly (1) is provided with a heat dissipation part which is used for dissipating heat to the outside;

The heat exchange piece (3) is connected with the base assembly (1), a containing space is arranged in the heat exchange piece (3), a solid-liquid phase-change material is arranged in the containing space, and the solid-liquid phase-change material is used for absorbing heat of the PCB (4) and then melting into a liquid state and exchanging heat with the heat dissipation part.

2. The electrically controlled composite cooling heat dissipating structure of claim 1, wherein the accommodating space is in a ring-shaped structure, and the solid-liquid phase-change material is arranged at the top of the ring-shaped accommodating space and falls into the bottom of the accommodating space after being heated and melted.

3. The electrically controlled composite cooling heat dissipation structure according to claim 1, wherein the base assembly (1) comprises a base body (11) and a bottom plate (12), the base body (11) is connected with the bottom plate (12), and the heat dissipation part is arranged between the base body (11) and the bottom plate (12);

The base body (11) is connected with the heat exchange piece (3), and the base body (11) is used for being connected with the PCB (4).

4. The electric control composite cooling radiating structure according to claim 3, wherein a heat exchange groove (114) is formed on one surface of the base body (11) away from the bottom plate (12);

The heat exchange piece (3) is connected with the heat exchange groove (114).

5. The electrically controlled composite cooling heat dissipation structure according to claim 4, wherein a groove body (111) is formed on one surface of the base body (11) facing away from the heat exchange groove (114), the heat dissipation part is arranged in the groove body (111), and the heat dissipation part in the groove body (111) is used for exchanging heat with the heat exchange piece (3).

6. The electrically controlled composite cooling heat dissipation structure according to claim 5, wherein the heat dissipation portion is provided with a cooling liquid, the cooling liquid is provided in the tank body (111), and the cooling liquid is used for exchanging heat with the heat exchanging member (3).

7. The electrically controlled composite cooling heat dissipation structure according to claim 6, wherein the base body (11) further comprises a liquid inlet pipe (112) and a liquid outlet pipe (113), one end of the liquid inlet pipe (112) is connected with the tank body (111), and the other end is connected with an external cooling liquid supply device;

One end of the liquid outlet pipe (113) is connected with one end of the groove body (111) far away from the liquid inlet pipe (112), and the other end of the liquid outlet pipe (113) is used for discharging the cooling liquid after heat exchange.

8. The electrically controlled composite cooling heat dissipation structure according to claim 6, wherein the tank body (111) is of an S-shaped structure, and a baffle is disposed in the tank body (111), and the baffle is distributed along an extending direction of the tank body (111) so as to divide the tank body (111) into two sub-tank bodies.

9. The electrically controlled composite cooling heat dissipation structure according to claim 1, further comprising a cover body (2), wherein the cover body (2) is connected with the base assembly (1), and the cover body (2) is used for being covered outside the heat exchange piece (3) and the PCB board (4).

10. A vehicle comprising an electrically controlled compound cooled heat dissipating structure as claimed in any one of claims 1 to 9.