Condensation heat dissipation structure for battery pack

Abstract

The utility model discloses a condensation heat dissipation structure for a battery pack, and relates to the field of condensation heat dissipation for the battery pack, the condensation heat dissipation structure comprises a liquid cooling pipe and battery cells, the liquid cooling pipe is of a zigzag structure which is bent back and forth, a plurality of zigzag areas which are distributed adjacently are formed in the zigzag structure, the battery cells are arranged in the zigzag areas, and a cavity is formed in the liquid cooling pipe. Cooling liquid is input into the cavity, the outer side of the liquid cooling pipe is wrapped with a heat conduction silica gel gasket, heat dissipation holes are formed in one side of the heat conduction silica gel gasket, the heat dissipation fan is started, wind power passes through the heat dissipation holes and the effect of the cooling liquid, the temperature of the wind power is reduced, the wind power acts on the battery cell, and the heat dissipation effect is improved; meanwhile, if the temperature of the battery cell rises and falls quickly and water vapor is generated, the water vapor can be taken away under the action of wind power, so that the phenomenon that the water vapor is gathered in a zigzag area and is easy to conduct is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of condensation heat dissipation for battery pack, especially relates to a condensation heat dissipation structure for battery pack. BACKGROUND

[0002] The power battery pack is one of the most important parts of the electric vehicle, which is composed of the battery cell, the insulating layer, the refrigeration system, the battery management system, the fireproof shell and the like; the battery cell is the core of power supply and can be divided into the lead-acid battery cell, the ternary material battery cell and the mercury battery cell and the like; the refrigeration system on the battery pack generally includes the evaporator, the compressor, the condenser and the throttling element and the like components, and the cooling liquid is input to flow to achieve the position of the battery cell cooling.

[0003] The battery cell generates high temperature when working, and the rapid temperature rise and fall will generate water vapor when the battery cell is instantaneously cooled, the water vapor aggregation will form the conductive area, and the safety problem is easily generated.

[0004] Therefore, it is necessary to provide a condensation heat dissipation structure for battery pack to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a condensation heat dissipation structure for battery pack to solve the problem that the battery cell generates high temperature when working, and the rapid temperature rise and fall will generate water vapor when the battery cell is instantaneously cooled, the water vapor aggregation will form the conductive area, and the safety problem is easily generated.

[0006] To achieve the above object, the utility model provides the following technical scheme: a condensation heat dissipation structure for battery pack, including liquid cooling pipe and battery cell, the liquid cooling pipe is the zigzag structure that bends back and forth, forms a plurality of adjacent distribution's zigzag area in the zigzag structure, the battery cell sets up in the zigzag area, and the inside of liquid cooling pipe is provided with the cavity, the inside of cavity is input with cooling liquid, the outside of liquid cooling pipe is wrapped with the heat conduction silica gel gasket, one side of heat conduction silica gel gasket is provided with the heat dissipation hole, the heat dissipation hole penetrates the other side of heat conduction silica gel gasket, and the through -hole corresponding with heat dissipation hole is set up on the liquid cooling pipe, and the through -hole and cavity are not connected, one side of liquid cooling pipe is provided with the cooling fan.

[0007] Preferably, the through hole and the corresponding heat dissipation hole are communicated, a tapered sleeve is arranged between the through hole and the corresponding heat dissipation hole, and the radius of the tapered sleeve near the cooling fan is greater than the radius of the tapered sleeve away from the cooling fan.

[0008] Preferably, a plurality of silica gel balls are fixed on the inner wall of the tapered sleeve, and a spacing is left between every two silica gel balls.

[0009] Preferably, a filter screen is fixed at both ends of the tapered sleeve.

[0010] Preferably, the plurality of battery cells are arranged equidistantly along the length direction of the meandering structure.

[0011] Preferably, one side of the heat-conducting silica gel pad is attached to the outer side of the battery cell.

[0012] Preferably, the air outlet of the heat-dissipating fan faces the liquid cooling pipe.

[0013] Preferably, the heat-conducting silica gel pad is elastic.

[0014] Technical effects and advantages of the present application:

[0015] 1. In the actual operation of the present application, when the battery cell generates heat, the heat-conducting silica gel pad can absorb heat, and the cooling liquid is input from one end of the liquid cooling pipe and output from the other end of the liquid cooling pipe. During the movement of the cooling liquid, the heat on the heat-conducting silica gel pad can be removed, and the condensation and heat dissipation work is completed. At the same time, the back-and-forth meandering arrangement of the liquid cooling pipe can isolate multiple battery cells to avoid heat accumulation. The meandering area of the heat-conducting silica gel pad and the liquid cooling pipe can also fix the battery cell to avoid movement.

[0016] 2. In the actual operation of the present application, the heat-dissipating fan is started, and the wind force passes through the heat-dissipating hole and is cooled by the cooling liquid, and then acts on the battery cell to improve the heat dissipation effect. At the same time, if the temperature of the battery cell rises and falls rapidly, water vapor is generated. The wind force can remove the water vapor to avoid the accumulation of water vapor in the meandering area, which can easily cause conduction. The water vapor passes through the heat-dissipating hole and contacts the plurality of silica gel balls. The plurality of silica gel balls can absorb part of the water vapor. At the same time, the conical sleeve is a conical structure, and the hole diameter of the one end of the wind force is small, which can further reduce the temperature of the wind force. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the condensation and heat dissipation structure of the battery pack.

[0018] Figure 2 It is a structural schematic view of the liquid cooling pipe and the cavity.

[0019] Figure 3 It is a structural schematic view of the conical sleeve and the filter screen.

[0020] In the figure: 1, liquid cooling pipe; 2, cavity; 3, heat-conducting silica gel pad; 4, battery cell; 5, heat-dissipating fan; 6, heat-dissipating hole; 7, silica gel ball; 8, conical sleeve; 9, filter screen. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] The utility model provides a kind of condensing heat dissipation structure for battery pack as shown in Figure 1 Figure 3 The utility model provides a kind of condensing heat dissipation structure for battery pack as shown in

[0023] One side of heat-conducting silica gel gasket 3 is attached to the outside of battery cell 4, which can extrude and fix battery cell 4.

[0024] In the actual operation of the utility model, when battery cell 4 generates heat, heat-conducting silica gel gasket 3 can absorb heat, by inputting coolant from one end of liquid cooling pipe 1, the coolant is then output from the other end of liquid cooling pipe 1, in the process of coolant movement, the heat on heat-conducting silica gel gasket 3 can be taken away, completing condensing heat dissipation work, at the same time, liquid cooling pipe 1 is set back and forth in a zigzag manner, which can isolate multiple battery cells 4 and avoid heat accumulation, heat-conducting silica gel gasket 3 and the zigzag area of liquid cooling pipe 1 can also fix battery cell 4 to avoid movement.

[0025] One side of heat-conducting silica gel gasket 3 is provided with a heat dissipation hole 6, the heat dissipation hole 6 penetrates the other side of heat-conducting silica gel gasket 3, and the liquid cooling pipe 1 is provided with a through hole corresponding to the heat dissipation hole 6, the through hole and the cavity 2 are not communicated, and the liquid cooling pipe 1 is provided with a heat dissipation fan 5 on one side.

[0026] The through hole and the corresponding heat dissipation hole 6 are communicated, the through hole and the corresponding heat dissipation hole 6 are provided with a conical sleeve 8 therebetween, the radius of the conical sleeve 8 near the end of the heat dissipation fan 5 is greater than the radius of the end far from the heat dissipation fan 5, a plurality of silica gel balls 7 are fixed on the inner wall of the conical sleeve 8, and a spacing is left between every two silica gel balls 7.

[0027] ​In the actual operation of the utility model, start the cooling fan 5, the wind force passes through the cooling hole 6, reduces the temperature of the wind force through the action of the cooling liquid, and acts on the battery cell 4, improves the cooling effect, at the same time, if the temperature of the battery cell 4 rises and falls quickly, produces water vapor, through the action of the wind force, water vapor can be taken away, avoid water vapor to gather in the zigzag area, cause the phenomenon of easy conduction, water vapor passes through the cooling hole 6 and can contact multiple silica gel balls 7, multiple silica gel balls 7 can absorb part of the water vapor, at the same time, since the conical sleeve 8 is a conical structure, the one end aperture of the wind force discharge is small, the temperature of the wind force can be reduced again.

[0028] The both ends of the conical sleeve 8 are fixed with filter screens 9, avoid dust to enter the inside, cause the blockage.

Claims

1. A condensation heat dissipation structure for a battery pack, comprising a liquid cooling pipe (1) and a battery cell (4), characterized in that: The liquid cooling pipe (1) is in a zigzag structure, a plurality of adjacent zigzag areas are formed in the zigzag structure, the electric core (4) is arranged in the zigzag area, a cavity (2) is formed in the liquid cooling pipe (1), the cavity (2) is filled with cooling liquid, the liquid cooling pipe (1) is wrapped with a heat-conducting silica gel pad (3), a plurality of heat dissipation holes (6) are formed in one side of the heat-conducting silica gel pad (3), the heat dissipation holes (6) penetrate through the other side of the heat-conducting silica gel pad (3), a plurality of through holes are formed in the liquid cooling pipe (1) and correspond to the heat dissipation holes (6), the through holes and the cavity (2) are not communicated, and a heat dissipation fan (5) is arranged on one side of the liquid cooling pipe (1).

2. The condensation heat dissipation structure for a battery pack according to claim 1, characterized by: The through holes and the corresponding heat dissipation holes (6) are communicated, a tapered sleeve (8) is arranged between the through holes and the corresponding heat dissipation holes (6), and the radius of one end of the tapered sleeve (8) close to the heat dissipation fan (5) is greater than the radius of the other end of the tapered sleeve (8) away from the heat dissipation fan (5).

3. The condensation heat dissipation structure for a battery pack according to claim 2, characterized by: A plurality of silica gel balls (7) are fixed on the inner wall of the tapered sleeve (8), and a spacing is left between two silica gel balls (7).

4. The condensation heat dissipation structure for a battery pack according to claim 2, characterized by: The tapered sleeve (8) is fixed with a filter screen (9) at both ends.

5. The condensation heat dissipation structure for a battery pack according to claim 1, characterized by: A plurality of electric cores (4) are arranged, and the plurality of electric cores (4) are equidistantly distributed along the length direction of the zigzag structure.

6. The condensation heat dissipation structure for a battery pack according to claim 1, characterized by: One side of the heat-conducting silica gel pad (3) is attached to the outer side of the electric core (4).

7. The condensation heat dissipation structure for a battery pack according to claim 1, characterized by: The air outlet of the heat dissipation fan (5) faces the liquid cooling pipe (1). 8.The condensation heat dissipation structure for a battery pack according to claim 1, characterized in that: The heat-conducting silica gel pad (3) has elasticity.

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