A heat dissipation multi-cooling chassis for new energy vehicles

Abstract

The present invention discloses a heat dissipation type multi-cooling chassis of a new energy vehicle, comprising a chassis frame and a battery pack, and also comprising a heat dissipation box and an air hood. The heat dissipation box is installed on the chassis frame, and an air cooling cavity is opened in the upper and lower side panels of the heat dissipation box, and a water cooling cavity is opened in the front and rear side panels of the heat dissipation box. The water cooling cavity is filled with coolant, and the battery pack is installed in the heat dissipation box. The beneficial effect of the present invention is that during the driving of the vehicle, wind is collected by the air hood and flows rapidly in the air cooling cavity, thereby realizing air cooling and cooling of the battery pack. In this process, the power generated by the air flow can also drive the coolant to circulate in the water cooling cavity, thereby realizing water cooling and cooling. Through the dual cooling of water cooling and air cooling, the battery pack in the working process can have a good heat dissipation effect, and in the process of heat dissipation, the flowing air generated when the vehicle is running is used as a power source, and there is no need to introduce additional water cooling and air cooling drive components, which can effectively save costs.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation installation of a battery pack of a new energy vehicle, and in particular to a heat dissipation type multi-cooling chassis of a new energy vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source. Electric vehicles are relatively mature new energy vehicles. Electric vehicles are driven by electricity. Therefore, battery packs, as electrical energy storage components, are one of the important components of electric vehicles.

[0003] The battery pack is generally installed on the chassis of the car. When an electric car is driving, its battery pack maintains high power output for a long time, which will generate a lot of heat. If the heat cannot be dissipated in time, it will cause heat accumulation, and then the temperature of the working position of the battery pack will increase. If the battery pack works in a high temperature environment for a long time, it will cause the aging of its internal components to accelerate, and there may also be a risk of fire and explosion. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a heat dissipation multi-cooling chassis for a new energy vehicle, and the present invention is achieved through the following technical solutions.

[0005] The heat dissipation chassis of a new energy vehicle comprises a chassis frame and a battery pack, and also comprises a heat dissipation box and an air hood; the heat dissipation box is fixed on the chassis frame, and the battery pack is installed in the heat dissipation box, an air cooling chamber is provided in the upper and lower side plates of the heat dissipation box, an exhaust passage is provided on the right side of the air cooling chamber, a first heat conducting plate is fixedly connected to the upper and lower side plates of the heat dissipation box in a laterally uniform manner, two ends of the first heat conducting plate are respectively located in the air cooling chamber and the inner cavity of the heat dissipation box, a transfer chamber is provided in the left plate of the heat dissipation box, a rotary chamber is provided in the chassis frame, the transfer chamber is connected with the rotary chamber through a first connecting channel, the first connecting channel is connected with the air cooling chamber below through a second connecting channel, and the transfer chamber is connected with the air cooling chamber above through a third connecting channel, the air hood is fixedly connected to the chassis frame and is located on the left side of the heat dissipation box, the left side of the air hood is openly arranged, an air inlet passage is provided in the chassis frame, and the air inlet passage conducts the inner cavity of the air hood and the rotary chamber.

[0006] Furthermore, a partition is fixedly connected in the air cooling cavity, the partition is spaced apart from the first heat conducting plate, the longitudinal length of the partition is smaller than the longitudinal length of the air cooling cavity, a group of partitions are fixedly connected to the front and rear side walls of the air cooling cavity respectively, and the partitions on the front and rear sides are engaged with each other.

[0007] Further, a water cooling cavity is provided in the front and rear side plates of the heat dissipation box, and a second heat conducting plate is evenly fixedly connected to the front and rear side plates of the heat dissipation box in a transverse direction, and two ends of the second heat conducting plate extend into the water cooling cavity and the inner cavity of the heat dissipation box respectively, and the water cooling cavity is filled with coolant, and a rectangular pump barrel is fixedly connected to the left side of the heat dissipation box, and a reciprocating screw rod is rotatably connected in the pump barrel, and the reciprocating screw rod is also rotatably connected to the right side plate of the wind cover, and the left end of the reciprocating screw rod extends into the wind cover and is fixedly connected to a fan blade group, and a ventilation hole is provided on the left side plate of the pump barrel, and a piston is also sealed and slidably connected in the pump barrel, and a reciprocating threaded sleeve is fixedly connected to the center of the piston, and the reciprocating screw rod is meshed in the reciprocating threaded sleeve;

[0008] A liquid extraction pipe is symmetrically fixed to the right side of the top plate of the pump barrel, the head of the liquid extraction pipe is connected to the corresponding water cooling cavity, the right side of the front and rear side plates of the pump barrel is fixed with a liquid outlet pipe, the right side of the front and rear side plates of the heat dissipation box is fixed with a return pipe at the position corresponding to the water cooling cavity, and a radiator is provided between the return pipe and the liquid outlet pipe;

[0009] The suction pipe and the discharge pipe are respectively provided with a first one-way valve and a second one-way valve. The first one-way valve allows the fluid to pass in the direction pointing to the inner cavity of the pump barrel, and the second one-way valve allows the fluid to pass in the direction away from the inner cavity of the pump barrel.

[0010] Furthermore, the radiator includes bilaterally symmetrical connecting pipes and heat dissipation fin tubes arranged in a butterfly shape between the connecting pipes, and the connecting pipes on the left and right sides are respectively connected to the liquid outlet pipe and the reflux pipe.

[0011] Furthermore, the right side of the heat dissipation box is open and also includes a cover plate. The battery pack is inserted into the space formed by the first heat conducting plate and the second heat conducting plate. The cover plate is detachably connected to the right side of the heat dissipation box by mounting screws at four corners.

[0012] Furthermore, a heat-resistant rubber seat is fixedly connected to the inner wall of the left side plate of the heat dissipation box and the inner side of the cover plate.

[0013] Furthermore, a circular installation frame is fixedly connected to a position on the cover plate corresponding to the exhaust channel, a first dustproof net is fixedly connected inside the installation frame, and the wind cover is sealed by a second dustproof net.

[0014] The beneficial effect of the present invention is that during the driving of the car, the wind is collected by the wind hood and flows rapidly in the air cooling chamber, thereby achieving air cooling of the battery pack. In this process, the power generated by the air flow can also drive the coolant to circulate in the water cooling chamber, thereby achieving water cooling. Through the dual cooling of water cooling and air cooling, the battery pack in the working process can have a good heat dissipation effect. In addition, in the process of heat dissipation, the flowing air generated by the driving of the car is used as a power source, and there is no need to introduce additional water cooling and air cooling drive components, so that the complexity and cost of the device are significantly reduced, which can effectively save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 : A three-dimensional schematic diagram of a heat dissipation multi-cooling chassis of a new energy vehicle according to the present invention;

[0017] Figure 2 : A three-dimensional schematic diagram of another angle of the heat dissipation multi-cooling chassis of a new energy vehicle according to the present invention;

[0018] Figure 3 : Figure 2 A partial enlarged view of point A shown;

[0019] Figure 4 : A transverse cross-sectional view of a heat dissipation multi-cooling chassis of a new energy vehicle according to the present invention;

[0020] Figure 5 : Figure 4 A partial enlarged view of point B shown;

[0021] Figure 6 : Figure 4 A local enlarged view of point C shown;

[0022] Figure 7 : A schematic diagram of the structure of the air-cooling chamber of the present invention;

[0023] Figure 8 : A schematic diagram of the installation of the battery pack of the present invention;

[0024] Fig. 9 : A schematic structural diagram of the radiator of the present invention.

[0025] The reference numerals are as follows:

[0026] 1- chassis frame, 2- battery pack, 3- heat sink, 4- fan cover, 51- air cooling chamber, 52- exhaust channel, 53- first heat conduction plate, 54- transfer chamber, 55- rotary chamber, 56- first connecting channel, 57- second connecting channel, 58- third connecting channel, 59- air inlet channel, 510- partition, 61- water cooling chamber, 62- second heat conduction plate, 63- pump barrel, 64- reciprocating screw, 65- fan blade assembly , 66-ventilation hole, 67-piston, 68-reciprocating threaded sleeve, 69-liquid extraction pipe, 610-liquid outlet pipe, 611-reflux pipe, 612-radiator, 6121-connecting pipe, 6122-heat dissipation fin tube, 613-first one-way valve, 614-second one-way valve, 71-cover plate, 72-mounting screws, 73-heat-resistant rubber seat, 74-mounting frame, 75-first dustproof net, 76-second dustproof net. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-9 As shown, a heat dissipation multi-cooling chassis of a new energy vehicle includes a chassis frame 1 and a battery pack 2, and also includes a heat dissipation box 3 and a wind shield 4; the heat dissipation box 3 is fixed on the chassis frame 1, and the battery pack 2 is installed in the heat dissipation box 3, and an air cooling cavity 51 is opened in the upper and lower side panels of the heat dissipation box 3, and an exhaust channel 52 is opened on the right side of the air cooling cavity 51. The upper and lower side panels of the heat dissipation box 3 are evenly fixed with a first heat conducting plate 53 in a transverse direction, and the two ends of the first heat conducting plate 53 are respectively located in the air cooling cavity 51 and the inner cavity of the heat dissipation box 3, and the left side panel of the heat dissipation box 3 is opened. There is a transfer chamber 54, a rotary chamber 55 is provided in the chassis frame 1, the transfer chamber 54 and the rotary chamber 55 are connected through a first connecting channel 56, the first connecting channel 56 is connected to the air cooling chamber 51 below through a second connecting channel 57, the transfer chamber 54 is connected to the air cooling chamber 51 above through a third connecting channel 58, the air hood 4 is fixedly connected to the chassis frame 1 and is located on the left side of the heat dissipation box 3, the left side of the air hood 4 is open, and an air inlet channel 59 is provided in the chassis frame 1, and the air inlet channel 59 connects the inner cavity of the air hood 4 and the rotary chamber 55.

[0029] Preferably, a partition 510 is fixedly connected in the air cooling chamber 51, and the partition 510 is arranged at an interval with the first heat conducting plate 53. The longitudinal length of the partition 510 is smaller than the longitudinal length of the air cooling chamber 51. A group of partitions 510 are fixedly connected to the front and rear side walls of the air cooling chamber 51, and the partitions 510 on the front and rear sides are engaged with each other.

[0030] Preferably, a water cooling chamber 61 is provided in the front and rear side plates of the heat dissipation box 3, and a second heat conducting plate 62 is evenly fixedly connected to the front and rear side plates of the heat dissipation box 3 in a transverse manner, and the two ends of the second heat conducting plate 62 extend into the water cooling chamber 61 and the inner cavity of the heat dissipation box 3 respectively, and the water cooling chamber 61 is filled with coolant, and a rectangular pump barrel 63 is fixedly connected to the left side of the heat dissipation box 3, and a reciprocating screw rod 64 is rotatably connected in the pump barrel 63, and the reciprocating screw rod 64 is also rotatably connected to the right side plate of the wind cover 4, and the left end of the reciprocating screw rod 64 extends into the wind cover 4 and is fixedly connected to a fan blade group 65, and a ventilation hole 66 is provided on the left side plate of the pump barrel 63, and a piston 67 is also sealed and slidably connected in the pump barrel 63, and a reciprocating threaded sleeve 68 is fixedly connected to the center of the piston 67, and the reciprocating screw rod 64 is engaged in the reciprocating threaded sleeve 68;

[0031] A liquid extraction pipe 69 is symmetrically fixed to the right side of the top plate of the pump barrel 63, and the head of the liquid extraction pipe 69 is connected to the corresponding water cooling chamber 61. A liquid outlet pipe 610 is fixed to the right side of the front and rear side plates of the pump barrel 63, and a return pipe 611 is fixed to the right side of the front and rear side plates of the heat dissipation box 3 at the position corresponding to the water cooling chamber 61. A radiator 612 is provided between the return pipe 611 and the liquid outlet pipe 610.

[0032] The first one-way valve 613 and the second one-way valve 614 are respectively provided on the liquid suction pipe 69 and the liquid outlet pipe 610. The first one-way valve 613 allows the fluid to pass in the direction pointing to the inner cavity of the pump barrel 63, and the second one-way valve 614 allows the fluid to pass in the direction away from the inner cavity of the pump barrel 63.

[0033] Preferably, the radiator 612 includes bilaterally symmetrical connecting tubes 6121 and heat dissipation fin tubes 6122 arranged in a butterfly shape between the connecting tubes 6121 . The connecting tubes 6121 on the left and right sides are connected to the liquid outlet pipe 610 and the reflux pipe 611 respectively.

[0034] Preferably, the right side of the heat dissipation box 3 is open and also includes a cover plate 71. The battery pack 2 is inserted into the space formed by the first heat conducting plate 53 and the second heat conducting plate 62. The cover plate 71 is detachably connected to the right side of the heat dissipation box 3 by mounting screws 72 at the four corners.

[0035] Preferably, a heat-resistant rubber seat 73 is fixedly connected to the inner wall of the left side plate of the heat dissipation box 3 and the inner side of the cover plate 71 .

[0036] Preferably, a circular mounting frame 74 is fixedly connected to a position on the cover plate 71 corresponding to the exhaust passage 52 , a first dustproof net 75 is fixedly connected inside the mounting frame 74 , and the air hood 4 is sealed by a second dustproof net 76 .

[0037] A specific embodiment of the present invention is:

[0038] like Figure 4As shown, the battery pack 2 is inserted into the space formed by the first heat conducting plate 53 and the second heat conducting plate 62, the installation of the battery pack 2 is limited by the first heat conducting plate 53 and the second heat conducting plate 62, and then the cover plate 71 is fixed by installing screws 72. The battery pack 2 is located between the two heat-resistant rubber pads. During the driving of the car, the heat-resistant rubber pads can effectively buffer vibration and reduce noise.

[0039] After the cover plate 71 is installed, the installation frame 74 is simultaneously inserted into the discharge channel.

[0040] Assuming that the direction of the vehicle travels from right to left, during the vehicle's travel, air enters the wind hood 4, and enters the first connecting channel 56 through the air inlet channel 59 and the rotating chamber 55 in sequence. Under the action of the transfer chamber 54, the second connecting channel 57 and the third connecting channel 58, the wind enters the air cooling chambers 51 on the upper and lower sides, and flows from left to right in the air cooling chamber 51.

[0041] The heat generated by the battery pack 2 during operation is transferred to the air cooling chamber 51 through the first heat conducting plate 53. The air flowing in the air cooling chamber 51 can take away the heat. By setting the partition 510, the distance that the air flows in the air cooling chamber 51 can be extended, thereby improving the heat dissipation effect.

[0042] The first dustproof net 75 and the second dustproof net 76 can prevent dust from entering the air cooling chamber 51, thereby preventing dust from accumulating on the first heat conducting plate 53 and causing a decrease in the heat conducting effect.

[0043] When wind enters the wind cover 4, it also drives the fan blade group 65 to rotate, thereby causing the reciprocating screw rod 64 to rotate. When the reciprocating screw rod 64 rotates, the piston 67 moves back and forth left and right. The setting of the ventilation hole 66 allows the piston 67 to move smoothly.

[0044] When the piston 67 reciprocates left and right, the coolant can be extracted through the liquid extraction pipe 69 and returned to the water cooling chamber 61 through the liquid outlet pipe 610, the radiator 612 and the reflux pipe 611. The heat generated by the battery pack 2 during operation is transferred to the coolant through the second heat conduction plate 62, and the coolant dissipates heat at the radiator 612, so that the coolant in the water cooling chamber 61 is maintained at a relatively low temperature, thereby improving the heat dissipation effect.

[0045] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A heat dissipation multi-cooling chassis for a new energy vehicle, comprising a chassis frame and a battery pack, characterized in that: The heat dissipation box also includes a heat dissipation box and an air hood; the heat dissipation box is fixed on the chassis frame, the battery pack is installed in the heat dissipation box, an air cooling chamber is provided in the upper and lower side panels of the heat dissipation box, an exhaust channel is provided on the right side of the air cooling chamber, the upper and lower side panels of the heat dissipation box are evenly and laterally fixed with a first heat conducting plate, two ends of the first heat conducting plate are respectively located in the air cooling chamber and the inner cavity of the heat dissipation box, a transfer chamber is provided in the left plate of the heat dissipation box, a rotary chamber is provided in the chassis frame, the transfer chamber is connected with the rotary chamber through a first connecting channel, the first connecting channel is connected with the air cooling chamber below through a second connecting channel, and the transfer chamber is connected with the air cooling chamber above through a third connecting channel. The air hood is fixed on the chassis frame and is located on the left side of the heat dissipation box, the left side of the air hood is open, and an air inlet channel is provided in the chassis frame, and the air inlet channel connects the inner cavity of the air hood and the rotary chamber; A water cooling cavity is provided in the front and rear side plates of the heat dissipation box, and a second heat conducting plate is evenly fixedly connected to the front and rear side plates of the heat dissipation box in a transverse direction, and two ends of the second heat conducting plate extend into the water cooling cavity and the inner cavity of the heat dissipation box respectively, and the water cooling cavity is filled with coolant, and a rectangular pump barrel is fixedly connected to the left side of the heat dissipation box, and a reciprocating screw rod is rotatably connected in the pump barrel, and the reciprocating screw rod is also rotatably connected to the right side plate of the wind cover, and the left end of the reciprocating screw rod extends into the wind cover and is fixedly connected to a fan blade group, and a ventilation hole is provided on the left side plate of the pump barrel, and a piston is also sealed and slidably connected in the pump barrel, and a reciprocating threaded sleeve is fixedly connected to the center of the piston, and the reciprocating screw rod is meshed in the reciprocating threaded sleeve; A liquid extraction pipe is symmetrically fixed to the right side of the top plate of the pump barrel, the head of the liquid extraction pipe is connected to the corresponding water cooling cavity, the right side of the front and rear side plates of the pump barrel is fixed with a liquid outlet pipe, the right side of the front and rear side plates of the heat dissipation box is fixed with a return pipe at the position corresponding to the water cooling cavity, and a radiator is provided between the return pipe and the liquid outlet pipe; The suction pipe and the discharge pipe are respectively provided with a first one-way valve and a second one-way valve. The first one-way valve allows the fluid to pass in the direction pointing to the inner cavity of the pump barrel, and the second one-way valve allows the fluid to pass in the direction away from the inner cavity of the pump barrel.

2. The heat dissipation multi-cooling chassis of a new energy vehicle according to claim 1, characterized in that: A partition is fixed in the air cooling chamber, the partition is spaced apart from the first heat conducting plate, the longitudinal length of the partition is smaller than the longitudinal length of the air cooling chamber, a group of partitions are fixed on the front and rear side walls of the air cooling chamber respectively, and the partitions on the front and rear sides are engaged with each other.

3. The heat dissipation multi-cooling chassis of a new energy vehicle according to claim 2 is characterized in that: The radiator comprises bilaterally symmetrical connecting pipes and heat dissipation fin tubes arranged in a butterfly shape between the connecting pipes. The connecting pipes on the left and right sides are respectively connected to the liquid outlet pipe and the reflux pipe.

4. The heat dissipation multi-cooling chassis of a new energy vehicle according to claim 2, characterized in that: The right side of the heat dissipation box is open and also includes a cover plate. The battery pack is inserted into the space formed by the first heat conducting plate and the second heat conducting plate. The cover plate is detachably connected to the right side of the heat dissipation box by mounting screws at four corners.

5. The heat dissipation multi-cooling chassis of a new energy vehicle according to claim 4, characterized in that: The inner wall of the left side plate of the heat dissipation box and the inner side of the cover plate are both fixedly connected with a heat-resistant rubber seat.

6. The heat dissipation multi-cooling chassis of a new energy vehicle according to claim 5, characterized in that: A circular installation frame is fixedly connected to the position of the cover plate corresponding to the exhaust channel, a first dustproof net is fixedly connected inside the installation frame, and the wind cover is sealed by a second dustproof net.

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