Auxiliary heat dissipation structure of new energy battery

Abstract

The utility model discloses an auxiliary heat dissipation structure of a new energy battery, which belongs to the field of battery heat dissipation structures and comprises a wrapping base in a rectangular groove shape and fixedly connected with a vehicle body; the heat dissipation fin group is arranged on the side wall and the bottom surface of the wrapping base, and the heat dissipation fin group forms a heat dissipation air channel on the bottom surface and the side wall of the wrapping base to dissipate heat of the battery; the air pipe sets are arranged on the vehicle head side and the vehicle tail side of the wrapping base correspondingly and communicate with the heat dissipation air channel in the wrapping base. The battery pack has the beneficial effects that the side fin strips and the bottom fin strips are arranged to form a plurality of heat dissipation air channels surrounding the peripheral surface of the battery pack and covering the bottom surface of the battery pack, the battery pack is subjected to auxiliary heat dissipation, the structure is simple, and the manufacturing cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery heat dissipation structure field, concretely relates to a new energy battery auxiliary heat dissipation structure. BACKGROUND

[0002] In new energy vehicles, power battery pack is as power source or one of power sources. Various electrochemical changes and physical changes will occur in the charging and discharging process of power battery, resulting in a large amount of heat. If these heat cannot be well dissipated and inhibited during vehicle driving, a large temperature difference will be generated between each monomer battery, resulting in uneven distribution of the heat generation temperature field of the battery pack, which may eventually cause the electrochemical performance to be severely reduced. At the same time, the temperature difference of each monomer battery will also cause the charging and discharging capacity of each power battery to be different, eventually reducing the cycle service life of the battery pack and significantly reducing the repeated charging capacity.

[0003] In addition, during use, the charging and discharging of large current will cause the internal temperature of the battery to rise, causing the battery temperature to exceed its normal use temperature, and even causing the battery to rupture, leak, catch fire and explode, thereby affecting the reliability and safety of the battery. Therefore, a special battery heat dissipation system matching the vehicle model is often provided in the battery management system of new energy vehicles. However, these heat dissipation systems are often covered and protected by the chassis of the vehicle body, and cannot be effectively cooled, and the structure is very complex and the cost is relatively high. Once damaged, it needs high repair cost.

[0004] Therefore, we propose a new energy battery auxiliary heat dissipation structure. SUMMARY

[0005] In view of the above shortcomings of the prior art, the utility model provides a new energy battery auxiliary heat dissipation structure.

[0006] To achieve the above invention purpose, the utility model adopts the technical scheme that:

[0007] A new energy battery auxiliary heat dissipation structure, comprising: a cladding base, which is rectangular groove-shaped and fixedly connected with the vehicle body; a heat dissipation fin group, which is arranged on the side wall and bottom surface of the cladding base, and forms a heat dissipation air duct on the bottom surface and side wall of the cladding base to dissipate heat for the battery; and a group of air pipes, which are respectively arranged on the vehicle head side and tail side of the cladding base and communicate with the heat dissipation air duct inside the cladding base.

[0008] By setting a cladding base, setting a heat dissipation fin group in the cladding base, placing the battery pack with a heat dissipation system on the heat dissipation fin group in the cladding base, in the process of vehicle driving, external cold air enters the cladding base from the air inlet in front of the air pipe group, flows through each heat dissipation air duct, and then flows out from the air outlet at the rear, thereby forming further auxiliary heat dissipation for the battery pack, effectively prolonging the service life of the battery pack, and the structure is simple, convenient to use and low in cost.

[0009] Further limitation, the air pipe group includes an air inlet pipe and an air outlet pipe, the air inlet pipe is arranged at the front side of the cladding base, and the air outlet pipe is arranged at the tail side of the cladding base.

[0010] Further limitation, the air inlet pipe and the air outlet pipe are both inclined downwardly arranged straight pipes, and the pipe openings are both horizontally arranged, and the pipe openings of the air inlet pipe and the air outlet pipe are arranged on the same horizontal plane as the chassis of the vehicle body in the installed state; by arranging the pipe openings of the air inlet pipe and the air outlet pipe and the vehicle body on the same horizontal plane, the structure can not protrude from the chassis to reduce the height of the vehicle body, and air can be more easily introduced in the process of driving, and the heat dissipation effect is improved.

[0011] Further limitation, the heat dissipation fin group includes side fins and bottom fins, the side fins are arranged around the side walls of the cladding base, and a plurality of side fins are vertically and spacedly arranged, the bottom fins are arranged on the bottom surface of the cladding base along the front and rear sides of the vehicle body, and a plurality of bottom fins are spacedly arranged along the left and right sides of the vehicle body; by arranging the side fins and the bottom fins, the gaps between adjacent side fins and the gaps between adjacent bottom fins are heat dissipation air ducts, cold air enters each heat dissipation air duct in the cladding base from the air inlet pipe, flows through the heat dissipation air duct, and then flows out from the air outlet pipe, thereby completing auxiliary heat dissipation, and the structure is simple and the heat dissipation effect is good.

[0012] Further limitation, all the side fins except the topmost side fin are provided with air duct notches at the air inlet pipe and the air outlet pipe, the width of the air duct notch is the same as the inner diameter of the air inlet pipe and the air outlet pipe, and gaps for ventilation are arranged between the two ends of all the bottom fins and the inner walls of the cladding base; in this way, the side fins can ensure that cold air can enter each heat dissipation air duct and cannot flow out from the top of the cladding base, and the gaps between the two ends of the bottom fins are also arranged to ensure that cold air can enter the heat dissipation air duct of each bottom fin.

[0013] Further limitation, the pipe openings of the air inlet pipe and the air outlet pipe are provided with filter screens; the filter screens arranged at the pipe openings of the air inlet pipe and the air outlet pipe can prevent sundries from entering the cladding base and causing blockage.

[0014] The utility model discloses the beneficial effect that: through setting side fin and bottom fin form multiple encircle battery pack perimeter and cover battery pack bottom surface's heat dissipation air duct, carry out auxiliary heat dissipation to battery pack, simple structure, convenient to use. DRAWINGS

[0015] Figure 1 is a top view of the utility model;

[0016] Figure 2 is Figure 1 is a sectional view along direction A-A;

[0017] Figure 3 is Figure 1 is a sectional view along direction B-B.

[0018] Wherein the symbols of each component are as follows:

[0019] The cladding base 1, the heat dissipation fin group 2, the side fin strip 21, the bottom fin strip 22, the heat dissipation air duct 23, the air pipe group 3, the air inlet pipe 31, the air outlet pipe 32, the filter screen 33. DETAILED DESCRIPTION

[0020] The specific embodiments of the utility model are described below to facilitate the understanding of the utility model by the person skilled in the art, but it should be clear that the utility model is not limited to the scope of the specific embodiments, and for the person skilled in the ordinary skill in the art, as long as various changes are within the spirit and scope of the utility model defined and determined by the appended claims, these changes are obvious, and all utility model creations utilizing the utility model concept are within the scope of protection.

[0021] Embodiment:

[0022] As Figures 1-3 shown, a new energy battery auxiliary heat dissipation structure includes a cladding base 1, a heat dissipation fin group 2 and an air pipe group 3; the cladding base 1 is rectangular groove-shaped and fixedly connected with the vehicle body; the heat dissipation fin group 2 is arranged on the side wall and the bottom surface of the cladding base 1, and the heat dissipation fin group 2 forms a heat dissipation air duct 23 on the bottom surface and the side wall of the cladding base 1 to dissipate heat for the battery; the heat dissipation fin group 2 includes side fin strips 21 and bottom fin strips 22, the side fin strips 21 are annularly arranged around the side wall of the cladding base 1, and a plurality of side fin strips 21 are vertically and spacedly arranged, the bottom fin strips 22 are arranged on the bottom surface of the cladding base 1 along the front and rear sides of the vehicle body, and a plurality of bottom fin strips 22 are spacedly arranged along the left and right sides of the vehicle body; the side fin strips 21 except the topmost side fin strip 21 are each provided with an air duct gap at the air inlet pipe 31 and the air outlet pipe 32, the width of the air duct gap is the same as the inner diameter of the air inlet pipe 31 and the air outlet pipe 32, and gaps for ventilation are provided between the two ends of all the bottom fin strips 22 and the inner wall of the cladding base 1; the air pipe group 3 is in communication with the heat dissipation air duct 23 inside the cladding base 1, the air pipe group 3 includes the air inlet pipe 31 and the air outlet pipe 32, the air inlet pipe 31 is arranged at the vehicle head side of the cladding base 1, and the air outlet pipe 32 is arranged at the vehicle tail side of the cladding base 1; the air inlet pipe 31 and the air outlet pipe 32 are each an inclined downward straight pipe, and the pipe openings are each horizontally arranged, the pipe openings of the air inlet pipe 31 and the air outlet pipe 32 are located on the same horizontal plane as the chassis of the vehicle body in the installed state, and the pipe openings of the air inlet pipe 31 and the air outlet pipe 32 are each provided with a filter screen 33.

[0023] By setting a cladding base 1, setting a heat dissipation fin group 2 in the cladding base 1, placing the battery group with a heat dissipation system on the heat dissipation fin group 2 in the cladding base 1, during the vehicle driving process, the external cold air enters the cladding base 1 from the air inlet in front of the air pipe group 3, flows through each heat dissipation air duct 23, and then flows out from the air outlet at the back, thereby forming further auxiliary heat dissipation for the battery group, effectively prolonging the service life of the battery group, the structure is simple, convenient to use, and low in cost; by setting the pipe openings of the air inlet pipe 31 and the air outlet pipe 32 and the vehicle body on the same horizontal plane, the structure can be avoided to protrude from the chassis to reduce the vehicle body height, and the air inlet during the driving process is more convenient, and the heat dissipation effect is improved; by setting the side fin strips 21 and the bottom fin strips 22, the gap between the adjacent side fin strips 21 and the gap between the adjacent bottom fin strips 22 are the heat dissipation air ducts 23, the cold air enters each heat dissipation air duct 23 in the cladding base 1 from the air inlet pipe 31, flows through the heat dissipation air duct 23, and then flows out from the air outlet pipe 32, the auxiliary heat dissipation is completed, the structure is simple, and the heat dissipation effect is good; the side fin strips 21 are set in this way to ensure that the cold air can enter each heat dissipation air duct 23 and cannot flow out from the top of the cladding base 1, the gap between the two ends of the bottom fin strips 22 is also set to ensure that the cold air can enter the heat dissipation air duct 23 of each bottom fin strip 22; the filter screen 33 is set at the pipe openings of the air inlet pipe 31 and the air outlet pipe 32 to avoid the entry of sundries into the cladding base 1 to cause blockage.

Claims

1. A new energy battery auxiliary heat dissipation structure, characterized in that, The utility model relates to a battery cooling device for electric vehicle, which comprises: a covering base (1) in the shape of a rectangular groove fixedly connected with the vehicle body; a set of cooling fins (2) arranged on the side walls and the bottom surface of the covering base (1), which forms a cooling air duct (23) on the bottom surface and the side walls of the covering base (1) to cool the battery; a set of air ducts (3) arranged on the front side and the rear side of the covering base (1) and communicating with the cooling air duct (23) inside the covering base (1).

2. The new energy battery auxiliary heat dissipation structure according to claim 1, characterized in that, The set of air ducts (3) comprises an air inlet duct (31) arranged on the front side of the covering base (1) and an air outlet duct (32) arranged on the rear side of the covering base (1).

3. The new energy battery auxiliary heat dissipation structure according to claim 2, characterized in that, Both the air inlet duct (31) and the air outlet duct (32) are straight pipes arranged obliquely downward, and the pipe openings are horizontally arranged, and the pipe openings of the air inlet duct (31) and the air outlet duct (32) are located on the same horizontal plane as the chassis of the vehicle body in the installed state.

4. The new energy battery auxiliary heat dissipation structure according to claim 3, characterized in that, The set of cooling fins (2) comprises side fin strips (21) and bottom fin strips (22), the side fin strips (21) are arranged around the side walls of the covering base (1) and vertically spaced, and the bottom fin strips (22) are arranged on the bottom surface of the covering base (1) along the front and rear sides of the vehicle body and spaced along the left and right sides of the vehicle body.

5. The new energy battery auxiliary heat dissipation structure according to claim 4, characterized in that, All the side fin strips (21) except the topmost one are provided with air duct notches at the air inlet duct (31) and the air outlet duct (32), the width of the air duct notches is the same as the inner diameter of the air inlet duct (31) and the air outlet duct (32), and gaps for ventilation are provided between the ends of all the bottom fin strips (22) and the inner walls of the covering base (1).

6. The new energy battery auxiliary heat dissipation structure according to claim 2, characterized in that, The pipe openings of the air inlet duct (31) and the air outlet duct (32) are provided with filter screens (33).

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