CN109037833B - Energy-saving battery radiator for electric automobile - Google Patents

Abstract

The invention discloses an energy-saving battery radiator for an electric automobile, which comprises a cooling medium, a left radiating medium pipe group and a right radiating medium pipe group which are symmetrically fixed close to two sides of a battery, and a medium circulation cavity arranged at the front end of the battery, wherein two ends of the medium circulation cavity are communicated with the left radiating medium pipe group and the right radiating medium pipe group on the two sides of the battery, the front end of the medium circulation cavity is provided with a heat conducting plate communicated with an automobile air inlet grid, the heat conducting plate is provided with a horizontal wave-shaped heat conducting plate from top to bottom, and the heat conducting plate is also provided with air guide pipes corresponding to the left radiating medium. According to the invention, the water-cooled heat dissipation medium pipe group and the medium circulation cavity are used for directly dissipating heat for the battery in a mode of combining water cooling and air cooling, and secondary heat dissipation is carried out through the air guide pipe and the heat conduction plate, so that wind power in the driving process of the automobile is fully utilized, and the energy-saving and environment-friendly effects are achieved.

Description

An energy-saving electric vehicle battery radiator

technical field

The invention relates to the field of automotive battery radiators, in particular to an energy-saving electric vehicle battery radiator.

Background technique

With the rise of electric vehicles, the battery of electric vehicles has become one of the important indicators to measure the performance of the car. Due to the dense arrangement of the car battery pack, the large input and output power, and the batteries are often buried inside the car, the battery heats up more seriously.

At present, the vast majority of electric vehicles use air cooling to dissipate heat from the battery, but the air cooling efficiency is low, the heat dissipation is uneven, it is difficult to be dustproof and waterproof, and it is difficult to ensure the heat dissipation effect in hot summer, so more and more electric vehicles begin to Use water cooling to dissipate heat from the battery. However, the current battery water cooling solutions on the market often have problems such as complex structure and high cost, which greatly limits their promotion and application.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an energy-saving electric vehicle battery radiator, through the combination of water cooling and air cooling, the water-cooled heat dissipation medium pipe and the medium flow cavity are used for direct heat dissipation for the battery, and then the air duct and the heat conduction plate are used for heat dissipation. The medium in the medium tube and the medium flow cavity dissipates heat, making full use of the wind during the driving process of the car, so that the water-cooled heat dissipation medium tube and the medium flow cavity have higher heat dissipation efficiency, and have the effect of energy saving and environmental protection.

To achieve the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

The invention provides an energy-saving electric vehicle battery radiator. The radiator includes a cooling medium, left and right cooling medium tube groups that are symmetrically fixed on both sides of the battery, and a medium flow cavity arranged at the front end of the battery. The two ends of the medium flow cavity are connected to the left and right heat dissipation medium tube groups on both sides of the battery. The left and right heat dissipation medium pipe groups both include a plurality of heat dissipation medium pipes arranged vertically. The advection chambers corresponding to the heat dissipation medium pipes are separated by the partitions, the heat dissipation medium pipes and the advection chambers are communicated with the advection chambers through a sealing adapter, and the vertically adjacent heat dissipation medium pipes are communicated through a sealed conduit, and the cooling medium passes through a The heat-dissipating medium pipe on one side flows to the heat-dissipating medium pipe on the other side through the convection chamber, and circulates up and down through the sealed conduit between the heat-dissipating medium pipes on the other side. The heat-conducting plate is provided with a horizontal wave-shaped heat-conducting plate from top to bottom, and the heat-conducting plate is also provided with an air duct that traverses the advection chamber, the sealing adapter and the heat-dissipating medium pipe corresponding to each heat-dissipating medium pipe, And the two ends of the air duct are respectively sealed and connected with the advection chamber and the heat dissipation medium pipe.

As a preference of the present invention to the above solution, a cooling medium inlet is provided at the top of the heat dissipation medium pipe of the uppermost layer of the radiator, and a cooling medium outlet is provided at the bottom of the heat dissipation medium pipe of the lowermost layer of the radiator. This kind of radiator enters the cooling medium from the cooling medium inlet on one side, then circulates in the entire radiator, and finally flows out through the cooling medium outlet.

As a preference of the present invention to the above solution, the top of the battery is also fixed with an upper heat-conducting block, and the upper heat-conducting block is provided with a plurality of heat-conducting grids fixed perpendicular to the upper heat-conducting block. The air contact dissipates heat from the battery, which further enhances the heat dissipation effect of the radiator.

As a preference of the present invention to the above solution, a thermally conductive adhesive is arranged between the battery and the left and right heat dissipation medium tube groups, the medium flow cavity, and the upper heat-conducting block. The effect is more even.

As the preferred solution of the present invention, the front end of the air duct is also provided with a circular flaring, and the circular flaring is provided, so that the flowing air of the air intake grille of the automobile is more easily introduced into the radiator, and the radiator is completed. of secondary heat dissipation.

As a preference of the present invention to the above solution, the material of the heat dissipation medium pipe, the medium flow cavity and the air conduit is copper or aluminum, and the cooling medium is water.

As a preference of the present invention to the above solution, the cooling medium outlet is sequentially connected to the cooling medium tank and the water pump through pipelines, and finally connected to the cooling medium inlet through pipelines, and the cooling medium tank is cooled by a small cooling compressor. After the cooling medium is cooled by the cooling medium tank, it is transported back to the cooling medium inlet through the pipeline by the water pump to complete the circulation process.

The beneficial effect of the present invention is that the radiator flows into the heat dissipation medium pipe on one side through the cooling medium, and then flows to the heat dissipation medium pipe on the other side through the convection chamber, and is sealed by the sealing conduit at the end of the heat dissipation medium pipe on the other side. Flow down to the heat dissipation medium pipe of the next layer, and then flow from the advective chamber of the next layer to the heat dissipation medium pipe of the other side along the opposite flow direction, repeating in turn, the heat dissipation effect is uniform and the bonding area with the battery is large, and the structure Compact and strong heat exchange effect. While the left and right cooling medium tube groups and the cooling medium in the medium flow cavity are dissipating heat, the flowing air of the automobile air intake grille enters the entire radiator through the air duct and penetrates the radiator from multiple places, forming a heat dissipation system by air. The secondary heat dissipation effect, especially the heat dissipation of each heat dissipation medium tube and the cooling medium in the flat chamber, further reduces the temperature of the cooling medium, making the cooling medium have a better cooling effect on the battery and a higher heat exchange efficiency. In addition, in the present invention, the medium flow chamber and the left and right heat dissipation medium pipe groups are connected through a sealing adapter, and the air duct can be sealed by a sealing ring, so that each part of the radiator can be disassembled for easy maintenance and replacement, and has a longer life. The advantages of long service life and low cost. Therefore, the present invention has the characteristics of good heat dissipation effect, low cost, energy saving and environmental protection, and has wide application prospects in the electric vehicle market.

Description of drawings

1 is a top view of the left and right heat dissipation medium tube groups and medium flow chambers in the present invention;

Fig. 2 is the sectional view at A-A1 place in Fig. 1;

Fig. 3 is a sectional view at B-B1 in Fig. 1;

4 is a schematic diagram of the flow direction of the cooling medium in the medium flow cavity in the present invention;

Fig. 5 is the structure schematic diagram of the heat conducting plate in the present invention;

6 is a top view of an upper heat conducting block in the present invention;

Fig. 7 is the cycle state schematic diagram of the present invention;

Among them, 1—battery, 2—left heat dissipation medium tube group, 3—right heat dissipation medium pipe group, 4—medium flow cavity, 5—heat dissipation medium pipe, 6—partition plate, 7—convection chamber, 8—sealed adapter, 9—Sealing conduit, 10—Conductive plate, 11—Corrugated heatconducting plate, 12—Air conduit, 13—Cooling medium inlet, 14—Upper heat conducting block, 15—Conducting grid, 16—Circular flare, 17—Cooling Medium outlet, 18—pipeline, 19—cooling medium tank, 20—water pump, 21—small cooling compressor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

An energy-saving electric vehicle battery radiator as shown in Figures 1 to 7, the radiator includes a cooling medium, left and right cooling medium tube groups (2, 3) symmetrically fixed on both sides of the battery 1, and a 1. The medium circulation cavity 4 at the front end, wherein both ends of the medium circulation cavity 4 are connected to the left and right heat dissipation medium tube groups (2, 3) on both sides of the battery 1, and the left and right heat dissipation medium pipe groups (2, 3) ) each includes a plurality of heat dissipation medium pipes 5 arranged vertically, and the medium flow chamber 4 includes a horizontal flow chamber 7 corresponding to the heat dissipation medium pipes 5 arranged vertically and separated by a partition 6 , and the heat dissipation medium pipes 5 and The advection chamber 7 is communicated through the sealing adapter 8, and the vertically adjacent heat dissipation medium pipes 5 are communicated through the sealing conduit 9, and the cooling medium flows through the heat dissipation medium pipe 5 on one side to the heat dissipation medium on the other side through the advection chamber 7. The medium pipe 5 flows up and down through the sealing conduit 9 between the heat dissipation medium pipes 5 on the other side. A horizontal wave-shaped heat-conducting plate 11 is provided from top to bottom. The heat-conducting plate 10 is also provided with an air duct 12 that traverses the advection chamber 7, the sealing adapter 8 and the heat-dissipating medium pipe 5 corresponding to each heat-dissipating medium pipe 5, and Both ends of the air duct 12 are sealed with the advection chamber 7 and the heat dissipation medium pipe 5 respectively.

In this example, a cooling medium inlet 13 is provided at the top of the left cooling medium tube group 2, and the cooling medium enters the cooling medium from the cooling medium inlet 13 on one side of the radiator, and then circulates in the entire radiator. A cooling medium outlet 17 is provided at the bottom of the heat-dissipating medium pipe, that is, the bottom of the right heat-dissipating medium pipe group 3 .

In this example, an upper heat-conducting block 14 is also fixed on the top of the battery 1 , and the upper heat-conducting block 14 is provided with a plurality of heat-conducting grids 15 fixed vertically to the upper heat-conducting block 14 . 14 is fully in contact with the air to dissipate heat from the battery 1, which further enhances the heat dissipation effect of the radiator.

In this example, a thermally conductive adhesive is provided between the battery 1 and the left and right heat dissipation medium tube groups (2, 3), the medium flow cavity 4, and the upper heat conducting block 14. The heat dissipation effect on the battery is more uniform.

In this example, the front end of the air duct 12 is also provided with a circular flaring 16, and the circular flaring 16 is provided, so that the flowing air of the air intake grille of the automobile is easier to be introduced into the radiator, and the radiator is completed. Secondary heat dissipation.

In this example, the material of the heat dissipation medium pipe 5, the medium flow cavity 4 and the air conduit 12 is copper or aluminum, and the cooling medium is water.

In this example, the cooling medium outlet 17 is sequentially connected to the cooling medium tank 19 and the water pump 20 through the pipeline 18 , and finally connected to the cooling medium inlet 13 through the pipeline 18 , and the cooling medium tank 19 passes through the small cooling compressor 21 . cool down. After the cooling medium is cooled by the cooling medium tank 19, it is transported back to the cooling medium inlet 13 through the pipeline 18 by the water pump 20 to complete the circulation process.

Based on the above, the working process of this kind of radiator is that the cooling medium flows into the heat dissipation medium pipe 5 on one side, and then flows to the heat dissipation medium pipe 5 on the other side through the advective chamber 7, and flows from the end of the heat dissipation medium pipe 5 on the other side. The sealed conduit 9 flows down to the heat dissipation medium pipe 5 of the next layer, and then flows from the advection chamber 7 of the next layer to the heat dissipation medium pipe 5 on the other side along the opposite flow direction, repeating in turn, the heat dissipation effect is uniform and consistent with the battery. 1. The bonding area is large, the structure is compact, and the heat exchange effect is strong. While the cooling medium in the left and right heat dissipation medium tube groups (2, 3) and the medium flow cavity 4 is dissipating heat, the flowing air of the automobile air intake grille enters the entire radiator through the air duct 12 and penetrates the radiator from multiple places. , constitutes the secondary heat dissipation effect of heat dissipation by air, especially the heat dissipation of the cooling medium in each heat dissipation medium pipe 5 and the flat chamber 7, which further reduces the temperature of the cooling medium, so that the cooling effect of the cooling medium on the battery 1 is better. The heat exchange efficiency is higher. In addition, in the present invention, the medium flow chamber 4 and the left and right heat dissipation medium tube groups (2, 3) are communicated through the sealing adapter 8, and the air duct 12 can be sealed by the sealing ring, so that each part of the radiator can be disassembled to It is easy to maintain and replace, and has the advantages of longer service life and low cost.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still understand the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Inside.

Claims (7)

1. An energy-saving battery radiator of an electric automobile is characterized by comprising a cooling medium, a left radiating medium pipe group and a right radiating medium pipe group which are symmetrically fixed and attached to two sides of a battery, and a medium circulation cavity arranged at the front end of the battery, wherein two ends of the medium circulation cavity are communicated with the left radiating medium pipe group and the right radiating medium pipe group on two sides of the battery, the left radiating medium pipe group and the right radiating medium pipe group respectively comprise a plurality of radiating medium pipes which are vertically arranged, the medium circulation cavity comprises a advection chamber which is vertically arranged and is separated by a partition plate and corresponds to the radiating medium pipes, the radiating medium pipes are communicated with the advection chamber through a sealing adapter, vertically adjacent radiating medium pipes are communicated through a sealing pipe, the cooling medium flows to the radiating medium pipe on the other side through the advection chamber through the radiating medium pipe on one side and flows up and down through the sealing pipe between the radiating, the heat-conducting plate is characterized in that the front end of the medium circulation cavity is provided with a heat-conducting plate communicated with an automobile air inlet grid, the heat-conducting plate is provided with a horizontal wave-shaped heat-conducting plate from top to bottom, the heat-conducting plate is further provided with air guide pipes which penetrate through the advection chamber, the sealing adapter and the heat-dissipation medium pipes correspondingly to the heat-dissipation medium pipes, and two ends of each air guide pipe are respectively in sealing connection with the advection chamber and the heat-dissipation medium.

2. The energy-saving battery radiator for an electric vehicle as claimed in claim 1, wherein the top of the uppermost heat dissipation medium pipe of the radiator is provided with a cooling medium inlet, and the bottom of the lowermost heat dissipation medium pipe of the radiator is provided with a cooling medium outlet.

3. The energy-saving battery radiator for an electric vehicle as claimed in claim 1, wherein an upper heat conducting block is further fixed on the top end of the battery, and the upper heat conducting block is provided with a plurality of heat conducting grid plates fixed perpendicular to the upper heat conducting block.

4. The energy-saving battery radiator of an electric vehicle as claimed in claim 3, wherein heat conducting glue is arranged between the battery and the left and right heat dissipation medium pipe groups, the medium circulation cavity and the upper heat conducting block.

5. The energy-saving battery radiator for the electric automobile as claimed in claim 1, wherein the front end of the air conduit is further provided with a round flaring.

6. The energy-saving battery radiator for the electric automobile as recited in claim 1, wherein the heat-dissipating medium pipe, the medium circulation cavity and the air conduit are made of copper or aluminum, and the cooling medium is water.

7. The energy-saving battery radiator of an electric vehicle as claimed in claim 2, wherein the cooling medium outlet is sequentially communicated with a cooling medium tank and a water pump through pipelines, and is finally communicated with the cooling medium inlet through a pipeline, and the cooling medium tank is cooled by a small-sized cooling compressor.

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