TWM640985U - Waterproof structure of vehicular water cooling type heat dissipation box - Google Patents

Abstract

A waterproof structure of a water-cooled heat dissipation box for a vehicle is installed on a water-cooled heat dissipation box of a vehicle, and includes a general water-cooled heat dissipation base, an elastic waterproof gasket and a fin-type radiator. The universal water-cooled heat dissipation base is provided with a cooling chamber, and a closed loop groove is provided to surround the cooling chamber at intervals. The elastic waterproof gasket is arranged in the closed loop groove. The fin-type radiator is covered with the general water-cooled heat dissipation base to seal the cooling chamber, and squeezes the elastic waterproof gasket to prevent one of the heat dissipation circulating water flowing through the cooling chamber from overflowing from the cooling chamber. out of the cooling base.

Description

The waterproof structure of the car water-cooled heat dissipation box

This creation is related to a waterproof structure, especially a waterproof structure of a water-cooled heat dissipation box for a car.

Due to the rising awareness of environmental protection and the increasing popularity of electric vehicles and motorcycles, coupled with human beings' demand for more functions on electric vehicles, vehicle electronic devices (such as: vehicle-mounted 5G communication equipment, virtual reality multimedia audio-visual playback devices, high-power Wireless communication devices) are also simultaneously installed in large numbers on electric vehicles.

In response to these changes, the operating power of many automotive core computing components has also increased significantly, and with it, higher and higher heat energy is generated during the operation of automotive electronic components. In order to prevent the performance and function of these automotive electronic components from being affected by the high temperature environment caused by high heat energy, the water-cooled (liquid-cooled) heat dissipation system is gradually replacing the previous air-cooled heat dissipation system for these automotive electronic components. components to dissipate heat.

Although the water-cooled (liquid-cooled) heat dissipation system can provide higher heat dissipation efficiency than the air-cooled heat dissipation system, because in the water-cooled (liquid-cooled) heat dissipation system, the circulating heat dissipation water (liquid) used for heat dissipation must be in The circulating flow in the closed pipe is also accompanied by the problem of leakage of the circulating cooling water (liquid).

In the prior art, in order to solve the problem of leakage, waterproof gaskets are usually installed in the cooling chamber for heat exchange. The degree of thermal deformation varies and it is easy to produce great thermal stress deformation. In addition, for cooling chambers with different profiles, waterproof gaskets with different profiles must be prepared separately, which also causes inconvenience in assembly and material preparation.

In addition, in the common assembly method of the water-cooled heat dissipation box, a radiator is usually put into a cooling chamber of a heat dissipation base, and then a cover plate and a waterproof gasket are used to seal the cooling chamber. Since the cover plate, radiator and heat dissipation base are all independent components, the gap between each other will hinder heat conduction, resulting in poor heat dissipation around the waterproof gasket, and causing greater thermal stress deformation of the waterproof gasket. It has the effect of preventing leakage.

In view of the prior art, there are generally inconveniences in assembly and material preparation, and problems such as large thermal stress deformation of the waterproof gasket are easy to occur. The main purpose of this creation is to provide a waterproof structure for the water-cooled heat dissipation box of a car, which replaces the waterproof gasket with a fixed shape and outline with an elastic waterproof gasket, and uses the radiator to directly contact and squeeze the elastic waterproof gasket to form an elastic waterproof gasket Provide better cooling effect.

Therefore, a necessary technical means adopted by the present invention to solve the problems of the prior art is to provide a waterproof structure of a water-cooled radiator box for a car, which is arranged on a water-cooled radiator box for a car and includes a general-purpose water-cooled radiator. A heat dissipation base, an elastic waterproof washer and a fin type radiator. The universal water-cooled heat dissipation base is arranged on the water-cooled heat dissipation box body of the car, and a cooling chamber is provided, and a closed circuit groove is provided to surround the cooling chamber at intervals. The elastic waterproof gasket is arranged in the closed loop groove. The fin-type radiator is covered with the general water-cooled heat dissipation base to seal the cooling chamber, and the elastic waterproof gasket is squeezed to prevent one of the heat dissipation circulating water flowing through the cooling chamber from overflowing the general water-cooled heat dissipation base from the cooling chamber outside the seat.

Among the subsidiary technical means derived from the above necessary technical means, preferably, the finned heat sink may include a heat sink base and a plurality of cooling fins. The radiator base is equipped with a fin setting surface facing the cooling chamber and a heat conduction surface facing away from the cooling chamber. The fin setting surface is covered with a general water-cooled heat dissipation base and extruded elastic waterproof gasket, and conducts heat The surface system is used to thermally connect to a vehicle electronic component to absorb heat energy generated during the operation of the vehicle electronic component. The cooling fins are spaced apart from each other and integrally formed from the fin setting surface of the radiator base and extend toward the cooling chamber.

Preferably, the fin-type heat sink may further include a plurality of partition ribs that are spaced apart and integrally formed extending toward the cooling chamber, so as to divide the cooling chamber into a plurality of heat exchange areas, and each heat exchange area All have a partial number of cooling fins. The automotive electronic component used for thermal connection on the heat conduction surface can be an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT).

The universal water-cooled heat dissipation base can also be provided with a water inlet buffer tank and a water outlet buffer tank connected to the cooling chamber. The heat dissipation circulating water system flows into the cooling chamber from the water inlet buffer tank and flows out from the cooling chamber to the outlet buffer tank. The closed loop groove is set up to surround the water inlet buffer tank, the cooling chamber and the water outlet buffer tank. The water inlet buffer tank and the water outlet buffer tank have a first depth and a second depth respectively, and the cooling chamber has a third depth. Preferably, both the first depth and the second depth are greater than the third depth.

The vehicle water-cooled heat dissipation box body further includes a guiding and positioning column and an inner wall of the box, and the guiding and positioning column can protrude from the general water-cooling heat dissipation base along the inner wall of the box. The finned radiator can be provided with a concave edge, so that when the finned radiator is covered on the general water-cooled heat dissipation base, it can be engaged with the guiding and positioning column. Preferably, the vehicle water-cooled radiator box can be a vehicle drive water-cooled radiator box.

Based on the above, in the waterproof structure of the car water-cooled heat dissipation box provided by this creation, the elastic waterproof gasket is used to replace the waterproof gasket in the prior art, and a closed loop groove is set to surround the cooling chamber. Therefore, regardless of the shape of the cooling chamber, the elastic waterproof gasket can be placed in the closed circuit groove through elastic deformation to provide anti-leakage effect, thus significantly improving the convenience of assembly and material preparation.

In addition, because in this creation, the elastic waterproof gasket is directly contacted and squeezed by the fin-type heat sink, so it can provide a better heat dissipation effect for the elastic waterproof gasket, so it can effectively reduce the temperature range of the elastic waterproof gasket And reducing the amount of thermal stress deformation can obviously maintain a longer service life of the elastic waterproof gasket, so as to maintain a longer period of anti-leakage effect.

The specific embodiments adopted in this creation will be further described by the following embodiments and drawings.

Due to the waterproof structure of the vehicle water-cooled heat dissipation box provided by this creation, it can be widely used in the water-cooled heat dissipation box of various vehicle components. There are many combinations and implementations, especially the following preferred embodiment to be specific. In addition, the diagrams in the various embodiments are all in a very simplified form, and the components are not presented in an absolutely accurate ratio, but are only used to facilitate and clearly illustrate the purpose and function of the inventive embodiment.

Please refer to the first figure to the third figure, wherein, the first figure shows the water-cooled heat dissipation box and the waterproof structure appearance structure schematic diagram of the automotive parts and components provided by the preferred embodiment of the invention; the second A figure shows The sectional view along the A-A section in the first figure; the second B figure shows the sectional view along the B-B section in the first figure; the third figure shows the separation of the fin-type radiator and the elastic waterproof gasket in the first figure, Schematic diagram of the appearance of the flipped finned heat sink. A waterproof structure (hereinafter referred to as "waterproof structure") 1 of a water-cooled heat dissipation box for a vehicle is installed on a water-cooled heat dissipation box 100 of a vehicle, and includes a general water-cooled heat dissipation base 11 and an elastic waterproof gasket 12 and a finned heat sink 13 .

The universal water-cooled heat dissipation base 11 is arranged on the vehicle water-cooled heat dissipation box 100 and integrally formed with the vehicle water-cooled heat dissipation box 100 . At the same time, the universal water-cooled heat dissipation base 11 is also provided with a cooling chamber CC, a closed loop groove CG, an inlet buffer tank IBT and an outlet buffer tank OBT. The water inlet buffer tank IBT and the water outlet buffer tank OBT are connected to the cooling chamber CC, and the closed loop groove CG surrounds the cooling chamber CC, the water inlet buffer tank IBT and the water outlet buffer tank OBT at intervals. The inlet buffer tank IBT and the outlet buffer tank OBT have a first depth D1 and a second depth D2 respectively, the cooling chamber has a third depth D3, and both the first depth D1 and the second depth D2 are greater than the third depth D3 .

The elastic waterproof gasket 12 is arranged in the closed loop groove CG. The finned heat sink 13 includes a heat sink base 131 , a plurality of heat dissipation fins 132 and partition ribs 133 . The radiator base 131 has a fin setting surface Sf and a heat conducting surface Sc, the fin setting surface Sf is facing the cooling chamber CC, and the heat conducting surface Sc is facing away from the cooling chamber CC. The edge of the fin setting surface Sf is covered with the universal water-cooled heat dissipation base 11, and the elastic waterproof gasket 12 arranged in the closed loop groove CG is squeezed. The heat conduction surface Sc of the radiator base 131 is used to thermally connect to a vehicle electronic component 200 (marked in FIG. 4 ) to absorb heat energy generated by the vehicle electronic component 200 during operation. The so-called "thermal connection" refers to the connection method that transfers heat energy efficiently through direct contact or contact with a heat-conducting medium (such as heat-conducting glue or heat-conducting strip).

The heat dissipation fins 132 are spaced apart from each other and integrally formed from the fin disposition surface Sf of the heat sink base 131 to extend toward the cooling chamber CC. The partition ribs 133 are spaced apart from each other and integrally formed to extend toward the cooling chamber CC, so as to strengthen the radiator base 131 . In this embodiment, there are four partition ribs 133, which can divide the cooling chamber CC into three heat exchange areas A1, A2, and A3, and each heat exchange area A1, A2, or A3 is equipped with a partial number of cooling fins Sheet 132. In this embodiment, there are 30 heat dissipation fins 132 in total, and each heat exchange area A1 , A2 or A3 has 10 heat dissipation fins 132 .

When dissipating heat from the vehicle electronic component 200 , the heat sink base 131 absorbs heat energy generated by the vehicle electronic component 200 from the heat conduction surface Sc, and conducts the heat energy to the cooling fins 132 . A heat dissipation circulating water (not shown in the figure) is cyclically flowing into the cooling chamber CC from the water inlet buffer tank IBT, and exchanges heat with the heat dissipation fins 132 to absorb heat energy, and then flows out from the cooling chamber CC to the water outlet buffer tank.

By using the edge of the fin setting surface Sf of the radiator base 131 to cover the general water-cooled heat dissipation base 11, and pressing the elastic waterproof gasket 12 arranged in the closed circuit groove CG, the flow can be prevented. The heat dissipation circulating water passing through the cooling chamber CC overflows from the cooling chamber CC to the outside of the universal water-cooled heat dissipation base 11, so that the heat dissipation circulating water can be prevented from causing oxidation and damage to other electronic components installed in the water-cooled heat dissipation box 100 of the vehicle. Corrosion and short circuit damage.

In order to facilitate assembly and positioning, preferably, the vehicle water-cooled heat dissipation box 100 includes a guiding and positioning column 101 and a box inner wall 102, and the guiding and positioning column 101 can be moved from the general water-cooling heat dissipation base 11 along the inside of the box. The wall 102 protrudes. At the same time, a concave edge N can be provided on the radiator base 131 of the finned radiator 13 . When assembling the finned radiator 13 on the universal water-cooled heat dissipation base 11, the concave edge N of the radiator base 131 of the finned radiator 13 can be aligned with the guide positioning column 101, and then the finned radiator 13 The radiator 13 is press-fitted on the universal water-cooled heat dissipation base 11, so that the concave edge N is engaged with the guide and positioning column 101, thereby improving the convenience and accuracy of assembly.

Please continue to refer to the fourth figure, which is a schematic diagram showing the application of the present invention to dissipating heat from an insulated gate bipolar transistor. As shown in the fourth figure, when the above-mentioned automotive electronic component 200 is an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT), the insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) is connected and fixed to the heat conduction surface Sc of the heat sink base 131 of the finned heat sink 13 by the above-mentioned thermal connection means, so as to dissipate heat from the insulated gate bipolar transistor. In addition, the vehicle water-cooled radiator box 100 may be a vehicle driver water-cooled radiator box for installing a vehicle driver.

Based on the above, in the waterproof structure 1 of the car water-cooled heat dissipation box provided by this creation, the elastic waterproof gasket 12 is used to replace the waterproof gasket in the prior art, and a closed loop groove CG is provided to surround the cooling The chamber CC, therefore, regardless of the contour shape of the cooling chamber CC, the elastic waterproof gasket 12 can be placed in the closed loop groove CG by elastic deformation to provide an anti-leakage effect, so the assembly and material preparation can be significantly improved convenience.

In addition, since in this creation, the elastic waterproof gasket 12 is directly contacted and squeezed with the fin type heat sink 13, so the elastic waterproof gasket 12 can be provided with a better heat dissipation effect, so the elastic waterproof gasket 12 can be effectively reduced. Reducing the amount of thermal stress deformation can obviously make the elastic waterproof gasket 12 maintain a longer service life, so as to maintain a longer period of anti-leakage effect.

Through the above detailed description of the preferred embodiments, it is hoped that the characteristics and spirit of the creation can be described more clearly, and the scope of the creation is not limited by the preferred embodiments disclosed above. On the contrary, its purpose is to hope to cover various changes and arrangements with equivalents within the scope of the patent scope of this creation.

100: Vehicle water-cooled radiator box 101: Guide positioning column 102: inner wall of the box 200: Automotive electronic components 1: waterproof structure 11:Universal water-cooled cooling base 12: Elastic waterproof gasket 13: Fin type radiator 131: radiator base 132: cooling fins 133:Separation rib N: concave edge Sf: fin setting surface Sc: heat conduction surface CC: cooling chamber CG: closed loop groove IBT: Inlet buffer tank OBT: Outlet buffer tank A1~A3: heat exchange area D1: first depth D2: second depth D3: third depth

The first figure is a schematic diagram showing the appearance and structure of the water-cooled heat dissipation box and its waterproof structure of the automotive components provided by the preferred embodiment of the invention; The second figure A is a sectional view along the A-A section in the first figure; The second figure B is a sectional view along the B-B section in the first figure; The third picture is a schematic diagram showing the appearance of the finned radiator in the first picture after it is separated from the elastic waterproof gasket, and the finned radiator is turned over; and Figure 4 is a schematic diagram showing the application of the present invention to dissipate heat from an insulated gate bipolar transistor.

100: Vehicle water-cooled radiator box

101: Guide positioning column

102: inner wall of the box

1: waterproof structure

11:Universal water-cooled cooling base

12: Elastic waterproof gasket

13: Fin type radiator

131: radiator base

132: cooling fins

133:Separation rib

N: concave edge

Sf: fin setting surface

Sc: heat conduction surface

CC: cooling chamber

CG: closed loop groove

IBT: Inlet buffer tank

OBT: Outlet buffer tank

A1~A3: heat exchange area

Claims (10)

A waterproof structure of a water-cooled heat dissipation box for a vehicle, which is installed in a water-cooled heat dissipation box of a vehicle, and includes: A general-purpose water-cooled heat dissipation base is arranged on the water-cooled heat dissipation box of the vehicle, and a cooling chamber is provided, and a closed circuit groove is provided to surround the cooling chamber at intervals; An elastic waterproof gasket is installed in the closed loop groove; and A fin-type heat sink is covered on the general water-cooled heat dissipation base to seal the cooling chamber, and squeezes the elastic waterproof gasket to prevent a heat-dissipating circulating water flowing through the cooling chamber from the cooling chamber chamber overflows the outside of this universal water-cooled thermal base. The waterproof structure of the water-cooled radiator box for a vehicle as described in claim 1, wherein the finned radiator includes: A heat sink base has a fin setting surface facing the cooling chamber and a heat conduction surface facing away from the cooling chamber, the fin setting surface is covered with the general water-cooled heat dissipation base and extruded The elastic waterproof gasket, and the heat-conducting surface is used to thermally connect to a vehicle electronic component to absorb heat energy generated when the vehicle electronic component operates; A plurality of cooling fins are spaced apart from each other and integrally formed from the fin setting surface of the radiator base and extend toward the cooling chamber. The waterproof structure of the vehicle water-cooled heat dissipation box according to claim 2, wherein the finned radiator further includes a plurality of partition ribs that are spaced apart from each other and integrally formed to extend toward the cooling chamber, so as to The cooling chamber is divided into a plurality of heat exchanging areas, and each heat exchanging area is provided with a partial number of the cooling fins. The waterproof structure of the water-cooled heat dissipation box for a vehicle as described in claim 2, wherein the electronic component for the vehicle used for thermal connection of the heat conduction surface is an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT). The waterproof structure of the vehicle water-cooled heat dissipation box as described in claim 1, wherein the universal water-cooled heat dissipation base is further provided with a water inlet buffer tank and a water outlet buffer tank communicated with the cooling chamber, the heat dissipation The circulating water system cyclically flows into the cooling chamber from the water inlet buffer tank, and flows out from the cooling chamber to the water outlet buffer tank. The waterproof structure of the water-cooled heat dissipation box for a vehicle as described in claim 5, wherein the closed loop groove is opened to surround the water inlet buffer tank, the cooling chamber and the water outlet buffer tank. The waterproof structure of the vehicle water-cooled heat dissipation box according to claim 5, wherein the water inlet buffer tank and the water outlet buffer tank have a first depth and a second depth respectively, and the cooling chamber has a third depth, and both the first depth and the second depth are greater than the third depth. The waterproof structure of the water-cooled heat dissipation box for a vehicle as described in claim 1, wherein the water-cooled heat dissipation box for the vehicle further includes a guide positioning column and an inner wall of the box, and the guide positioning column is connected from the The universal water-cooled heat dissipation base protrudes along the inner wall of the box. The waterproof structure of the car water-cooled heat dissipation box as described in claim 8, wherein the finned radiator is provided with a concave edge, so that the finned radiator is covered with the general water-cooled heat dissipation base When seated, engage with the guide positioning column. The waterproof structure of the water-cooled heat dissipation box for a vehicle as described in Claim 1, wherein the water-cooled heat dissipation box system for the vehicle is a water-cooled heat dissipation box for an automobile driver.

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