New energy automobile battery heat dissipation structure

Abstract

The invention belongs to the technical field of new energy automobile batteries, and particularly relates to a new energy automobile battery heat dissipation structure. Comprising a battery fixing frame, a mounting groove is formed in the middle of the battery fixing frame, a plurality of heat dissipation plates are arranged on the two sides in the mounting groove at intervals, battery packs are fixedly mounted between every two adjacent heat dissipation plates and between the heat dissipation plates and side plates of the battery fixing frame, and a mounting channel is reserved between the battery packs on the two sides; a cooling liquid input main pipe is arranged in the mounting channel, a wavy heat exchange channel is arranged in each heat dissipation plate, the cooling liquid input main pipe is communicated with one end of the heat exchange channel on each heat dissipation plate through a cooling liquid input branch pipe, and each cooling liquid input branch pipe is communicated with an electromagnetic valve. By respectively controlling the on-off of each electromagnetic valve, the purpose of respectively controlling the heat dissipation work of each battery pack can be achieved, energy can be effectively saved, the problem that the temperature of an individual battery pack is too high can be solved, and therefore potential safety hazards are eliminated.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle batteries, and in particular relates to a new energy vehicle battery heat dissipation structure. Background Art

[0002] New energy vehicles refer to all other energy vehicles except gasoline and diesel engines. They include fuel cell vehicles, hybrid vehicles, hydrogen energy vehicles and solar vehicles. Currently, most new energy vehicles sold in the Chinese market are hybrid vehicles and pure electric vehicles. At the same time, hybrid vehicles and pure electric vehicles both use battery packs to increase power supply. In addition, the heat dissipation structure of the battery pack is an important structure of new energy vehicles.

[0003] New energy batteries will generate a lot of heat during use. In order to prevent the battery from being damaged due to excessive temperature, a heat dissipation structure needs to be installed on the battery to ensure that the battery can be used normally.

[0004] However, the battery pack of a new energy vehicle is generally composed of multiple battery packs. The existing heat dissipation mechanism using air cooling can only dissipate heat for the entire battery pack uniformly, but cannot focus on dissipating heat for a specific battery pack. The heat dissipation effect is not good and cannot solve the problem of excessive temperature of individual battery packs, thus posing certain safety hazards. Therefore, it is urgent to design a heat dissipation structure that can dissipate heat for each battery pack separately. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides a new energy vehicle battery heat dissipation structure, and specifically discloses the following technical solutions:

[0006] A new energy vehicle battery heat dissipation structure comprises a battery fixing frame, wherein a mounting groove is provided in the middle of the battery fixing frame, and a plurality of heat sinks are respectively arranged at intervals on both sides of the mounting groove, and a battery pack is fixedly installed between two adjacent heat sinks and between the heat sink and the side plate of the battery fixing frame, and a mounting channel is reserved between the battery packs on both sides in the mounting groove, a coolant input main pipe is provided in the mounting channel, a wavy heat exchange channel is provided inside each of the heat sinks, and the heat exchange channels are respectively provided with openings on both sides of the heat sink, the coolant input main pipe is respectively communicated with one end of the heat exchange channel on each heat sink through a coolant input branch pipe, and each of the coolant input branch pipes is connected with a solenoid valve, pipeline placement grooves are provided on both sides of the mounting groove, and a coolant output main pipe is provided in each of the pipeline placement grooves, and the heat exchange channels on a plurality of heat sinks on the same side of the coolant output main pipe are respectively communicated with the corresponding coolant output main pipe through the coolant output branch pipe, and a top cover is fixedly installed on the top of the battery fixing frame.

[0007] Furthermore, each of the coolant output branch pipes is connected to a one-way valve, and the flow direction of the coolant in the one-way valve is from one side of the heat sink to the corresponding side of the coolant output main pipe.

[0008] Furthermore, the coolant input main pipe and the two coolant output main pipes are fixed to the bottom plate of the battery fixing frame by means of U-shaped buckles and fixing screws.

[0009] Furthermore, at least two mutually parallel T-shaped grooves are arranged on the bottom plate of the battery fixing frame below each row of heat sinks, and the T-shaped grooves are arranged perpendicular to the plane where the heat sinks are located. The bottom of the heat sink is fixedly connected with a T-shaped slider that cooperates with the T-shaped groove, and the T-shaped slider is slidably installed in the T-shaped groove.

[0010] Furthermore, a plurality of through holes penetrating the heat dissipation plate are provided on both sides of the heat exchange channel.

[0011] Furthermore, the side panels of the battery fixing frame are each provided with a plurality of heat dissipation holes.

[0012] Furthermore, the top cover is fixed to the top of the battery fixing frame by screws, and there is a gap between the lower surface of the top cover and the upper surface of the battery pack.

[0013] Furthermore, the top cover is provided with a plurality of mounting holes, and a heat dissipation fan is installed in each mounting hole.

[0014] Furthermore, a temperature sensor is fixedly mounted on each of the battery packs for real-time monitoring of the temperature of the battery pack.

[0015] Furthermore, a PLC controller is included, and the solenoid valve and the temperature sensor are electrically connected to the PLC controller.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, each battery pack has a corresponding heat sink for heat dissipation, each heat sink is connected to the coolant input main pipe through the corresponding coolant input branch pipe, and each coolant input branch pipe is connected to a solenoid valve for controlling whether the coolant in the heat sink passes through or not, so as to achieve the purpose of separately controlling the heat dissipation work of each battery pack, which can not only effectively save energy, but also solve the problem of excessive temperature of individual battery packs, thereby eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the present invention.

[0019] Figure 2 It is a top view of the battery fixing frame in the present invention.

[0020] Figure 3 It is a top view of the top cover in the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the heat dissipation plate in the present invention.

[0022] Figure 5 It is a cross-sectional view of the heat dissipation plate in the present invention.

[0023] 1-battery fixing frame, 2-heat dissipation plate, 3-battery pack, 4-coolant input main pipe, 5-heat exchange channel, 6-coolant input branch pipe, 7-solenoid valve, 8-coolant output main pipe, 9-coolant output branch pipe, 10-check valve, 11-top cover, 12-U-type buckle, 13-T-type slider, 14-heat dissipation hole, 15-heat dissipation fan. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-5 A new energy vehicle battery heat dissipation structure includes a battery fixing frame 1, a mounting groove is provided in the middle of the battery fixing frame 1, and a row of heat dissipation plates are respectively provided on both sides of the mounting groove, and each row of heat dissipation plates includes a plurality of heat dissipation plates 2 that are spaced apart and arranged in parallel. A battery pack 3 is fixedly installed between two adjacent heat dissipation plates 2 and between the heat dissipation plate 2 and the side plate of the battery fixing frame 1. The side of the battery pack 3 is tightly attached to the heat dissipation plate 2, and the bottom of the battery pack 3 is fixedly connected to the bottom plate of the battery fixing frame 1 by screws. An installation channel is reserved between the battery packs 3 on both sides in the installation groove, and a coolant input main pipe 4 is provided in the installation channel. Each heat dissipation plate 2 A wavy heat exchange channel 5 is provided inside, and the heat exchange channel 5 is provided with openings on both sides of the heat sink 2. The coolant input main pipe 4 is connected to one end of the heat exchange channel 5 on each heat sink 2 through the coolant input branch pipe 6, and each coolant input branch pipe 6 is connected to a solenoid valve 7. Pipeline placement grooves are provided on both sides of the installation groove, and a coolant output main pipe 8 is provided in each pipeline placement groove. The heat exchange channels 5 on several heat sinks 2 on the same side close to the coolant output main pipe 8 are connected to the corresponding coolant output main pipe 8 through the coolant output branch pipe 9, and a top cover 11 is fixedly installed on the top of the battery fixing frame 1.

[0026] During actual operation, the coolant enters from one end of the coolant input main pipe 4, and enters the heat exchange channel 5 of the heat sink 2 through the corresponding coolant input branch pipe 6. The heat sink 2 is in direct contact with the battery pack 3. In the process of the coolant passing through the heat exchange channel 5, the heat dissipated by the battery pack 3 will be taken away, and finally the heated coolant will be discharged through the coolant output main pipe 8. In this process, by controlling the on and off of each solenoid valve 7 respectively, it is possible to control whether the coolant in the heat sink 2 passes through or not, so as to achieve the purpose of separately controlling the heat dissipation work of each battery pack 3, which can not only effectively save energy, but also solve the problem of excessive temperature of individual battery packs 3, thereby eliminating safety hazards.

[0027] In this embodiment, each coolant output branch pipe 9 is connected to a one-way valve 10, and the flow direction of the coolant in the one-way valve 10 is from the side of the heat sink 2 to the side of the corresponding coolant output main pipe 8, thereby avoiding the backflow of the coolant.

[0028] In this embodiment, the coolant input main pipe 4 and the two coolant output main pipes 8 are fixed to the bottom plate of the battery fixing frame 1 by means of U-shaped buckles 12 and fixing screws, so that they can not only be effectively fixed but also be easy to disassemble.

[0029] In this embodiment, at least two parallel T-shaped slots are provided on the bottom plate of the battery fixing frame 1 below each row of heat sinks 2. The T-shaped slots are provided perpendicular to the plane where the heat sinks 2 are located. The bottom of the heat sink 2 is fixedly connected with a T-shaped slider 13 that matches the T-shaped slot. The T-shaped slider 13 is slidably installed in the T-shaped slot. The heat sink 2 can slide along the T-shaped slot, so that the spacing between the heat sinks 2 can be easily adjusted to accommodate the installation of battery packs 3 of different sizes.

[0030] In this embodiment, a plurality of through holes penetrating the heat dissipation plate 2 are provided on both sides of the heat exchange channel 5 on the heat dissipation plate 2 , thereby further improving the heat exchange effect.

[0031] In this embodiment, a plurality of heat dissipation holes 14 are provided on the side panels of the battery fixing frame 1, so as to improve the ventilation degree in the fixing frame, thereby improving the heat dissipation efficiency and heat dissipation effect.

[0032] In this embodiment, the top cover 11 is fixed to the top of the battery fixing frame 1 by screws, and there is a gap between the lower surface of the top cover 11 and the upper surface of the battery pack 3, so that there is air flow space between the top cover 11 and the battery pack 3, thereby ensuring the heat dissipation effect.

[0033] In this embodiment, the top cover 11 is provided with a plurality of mounting holes, each of which is provided with a heat dissipation fan 15, which can perform air cooling and heat dissipation on the battery pack 3. The combination of air cooling and liquid cooling can further ensure the heat dissipation effect. When the temperature of the battery pack 3 is not high, air cooling can be used alone. When the battery temperature is too high and the heat dissipation fan 15 cannot meet the heat dissipation demand, the liquid cooling mode can be started to ensure that the temperature of the battery pack 3 is kept within a normal range.

[0034] In this embodiment, a temperature sensor is fixedly mounted on each battery pack 3 to monitor the temperature of the battery pack 3 in real time.

[0035] In this embodiment, a PLC controller is also included, and the solenoid valve 7 and the temperature sensor are electrically connected to the PLC controller. When the temperature of a battery pack 3 is too high, the temperature sensor on the battery pack 3 will transmit a signal to the PLC controller, and the PLC controls the corresponding solenoid valve 7 to open, so that the coolant can smoothly pass through the corresponding heat sink 2, thereby completing the heat exchange and cooling work, so that the temperature of the battery pack 3 can be significantly reduced.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A new energy vehicle battery heat dissipation structure, characterized in that: The heat exchanger of the embodiment of the present invention is a heat exchanger with a heat dissipation device, and a heat dissipation device is provided to dissipate heat from one end of the heat exchanger to another end of the heat exchanger. The heat exchanger has a plurality of heat dissipation devices, each of which has a plurality of heat dissipation devices disposed therein. The heat exchanger has a plurality of heat dissipation devices disposed therein, each of which has a plurality of heat dissipation devices disposed therein, each of which has a plurality of heat dissipation devices disposed therein, each of which has a plurality of heat dissipation devices disposed therein, each of which has a plurality of heat dissipation devices disposed therein, each of which has a plurality of heat dissipation devices disposed therein, each of which has a plurality of heat dissipation devices disposed therein, 2. A new energy vehicle battery heat dissipation structure according to claim 1, characterized in that: Each of the coolant output branch pipes is connected to a one-way valve, and the flow direction of the coolant in the one-way valve is from one side of the heat sink to the corresponding side of the coolant output main pipe.

3. A new energy vehicle battery heat dissipation structure according to claim 1, characterized in that: The coolant input main pipe and the two coolant output main pipes are fixed to the bottom plate of the battery fixing frame by means of U-shaped buckles and fixing screws.

4. A new energy vehicle battery heat dissipation structure according to claim 1, characterized in that: At least two parallel T-shaped slide grooves are arranged on the bottom plate of the battery fixing frame below each row of heat sinks, and the T-shaped slide grooves are arranged perpendicular to the plane where the heat sinks are located. A T-shaped slider matching the T-shaped slide groove is fixedly connected to the bottom of the heat sink, and the T-shaped slider is slidably installed in the T-shaped slide groove.

5. A new energy vehicle battery heat dissipation structure according to claim 1, characterized in that: A plurality of through holes penetrating the heat dissipation plate are provided on both sides of the heat exchange channel.

6. A new energy vehicle battery heat dissipation structure according to claim 1, characterized in that: The side panels of the battery fixing frame are each provided with a plurality of heat dissipation holes.

7. A new energy vehicle battery heat dissipation structure according to claim 1, characterized in that: The top cover is fixed to the top of the battery fixing frame by screws, and there is a gap between the lower surface of the top cover and the upper surface of the battery pack.

8. A new energy vehicle battery heat dissipation structure according to claim 7, characterized in that: The top cover is provided with a plurality of mounting holes, and a heat dissipation fan is installed in each mounting hole.

9. A new energy vehicle battery heat dissipation structure according to claim 1, characterized in that: A temperature sensor is fixedly mounted on each battery pack to monitor the temperature of the battery pack in real time.

10. A new energy vehicle battery heat dissipation structure according to claim 9, characterized in that: It also includes a PLC controller, and the solenoid valve and the temperature sensor are both electrically connected to the PLC controller.

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