New energy battery pack cooling equipment

Abstract

The utility model discloses new energy battery pack cooling equipment which comprises a battery pack upper shell and a battery pack lower shell, heat dissipation openings are formed in the two sides of the battery pack upper shell and the two sides of the battery pack lower shell, and supporting columns are fixedly connected to the top of the inner wall of the battery pack upper shell and the bottom of the inner wall of the battery pack lower shell. According to the utility model, an operator can start the second fan, so that the air flow rate in the battery pack upper shell and the battery pack lower shell is increased, the first-stage heat dissipation is carried out on the battery body, the heat generated by the battery body is transferred into the cooling liquid in the cooling box, and then the operator starts the conveying pump; the cooling liquid in the cooling box is conveyed into the heat dissipation pipe, then the first fan is started, the air flowing speed on the surface of the heat dissipation pipe is increased, heat dissipation is conducted on the cooling liquid in the heat dissipation pipe, the cooled cooling liquid flows back into the cooling box, circulation is conducted in sequence, and the device has the advantage of being good in heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery packs, in particular to a cooling device for a new energy battery pack. Background Technique

[0002] During the high-current charging and discharging process of new energy power battery packs, a large amount of heat will accumulate inside the battery. If the heat is not controlled in time, the temperature of the battery module will rise sharply. Especially for large-capacity battery modules, their energy density is greater and the heat dissipation is higher, which is prone to thermal runaway, causing problems such as gas release, smoking, and liquid leakage of the battery, and may even cause battery combustion, explosion, etc.

[0003] At present, the cooling devices for new energy battery packs basically cool the battery through natural cooling or air cooling to dissipate the temperature inside the battery pack. However, this cooling method has poor cooling effect, and there is still some heat on the surface of the battery. Therefore, it is necessary to design and transform the cooling device for new energy battery packs to effectively prevent the phenomenon of poor heat dissipation. Content of the Utility Model

[0004] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a cooling device for a new energy battery pack, which has the advantage of good heat dissipation effect, and solves the problem that the current cooling devices for new energy battery packs basically cool the battery through natural cooling or air cooling to dissipate the temperature inside the battery pack, but this cooling method has poor cooling effect, and there is still some heat on the surface of the battery.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A cooling device for a new energy battery pack, including an upper battery pack housing and a lower battery pack housing. Both sides of the upper battery pack housing and the lower battery pack housing are provided with heat dissipation openings. The top of the inner wall of the upper battery pack housing and the bottom of the inner wall of the lower battery pack housing are both fixedly connected with support columns. A cooling box is fixedly connected to the surface of the support column. A positioning frame is fixedly connected to the surface of the cooling box. A battery body is movably connected to the inner wall of the positioning frame. The battery body is movably connected to the cooling box. Both sides of the bottom of the lower battery pack housing are fixedly connected with fixed columns. The top and bottom of the inside of the fixed column are both fixedly connected with heat dissipation pipes. First fans are fixedly connected to both sides of the bottom of the lower battery pack housing. A delivery pump is fixedly connected to the surface of the heat dissipation pipe. The water outlet of the heat dissipation pipe is communicated with the water inlet of the delivery pump. The water outlet of the delivery pump is communicated with the water inlet of the cooling box. The water outlet of the cooling box is communicated with the water inlet of the heat dissipation pipe.

[0006] Preferably, a dust-proof plate is movably connected inside the heat dissipation port. Mounting frames are movably connected to both sides of the upper battery pack housing and the lower battery pack housing. The mounting frames are movably connected to the dust-proof plate. Screws are movably connected to the surface of the mounting frames. The screws are threadedly connected to the upper battery pack housing and the lower battery pack housing respectively. Anti-rust paint is sprayed on the surface of the screws.

[0007] Preferably, a second fan is fixedly connected to the surface of the mounting frame through a bracket. A protective cover is fixedly connected to the surface of the motor of the second fan.

[0008] Preferably, atomizing nozzles are fixedly connected to the bottom of the lower battery pack housing. The number of the atomizing nozzles is several. The atomizing nozzles are evenly distributed on the bottom of the lower battery pack housing.

[0009] Preferably, mounting plates are fixedly connected to both sides of the upper battery pack housing and the lower battery pack housing. Mounting openings are formed in the surface of the mounting plates. Bolts are threadedly connected to the surface of the mounting plates. Anti-rust coatings are sprayed on the surface of the bolts.

[0010] Preferably, fan blade frames are movably connected inside the cooling box. The number of the fan blade frames is several. The fan blade frames are evenly distributed inside the cooling box.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The operator can start the second fan in the present utility model, thereby increasing the air flow rate inside the upper battery pack housing and the lower battery pack housing, and then performing the first-stage heat dissipation on the battery body. The heat generated by the battery body is transferred to the coolant inside the cooling box. Then the operator starts the delivery pump to make the coolant inside the cooling box be delivered into the heat dissipation pipe. Then the first fan is started to increase the air flow speed on the surface of the heat dissipation pipe, and then the coolant inside the heat dissipation pipe is dissipated. The cooled coolant flows back into the cooling box and circulates in turn. This device has the advantage of good heat dissipation effect.

[0013] 2. Through the arrangement of the dust-proof plate, the mounting frame and the screws in the present utility model, the operator puts the dust-proof plate into the heat dissipation port, then fits the mounting frame with the upper battery pack housing or the lower battery pack housing, and then uses the screws to fix the mounting frame, so that the dust-proof plate cannot be separated from the heat dissipation port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a top view sectional schematic diagram of the cooling box structure of the present utility model;

[0016] Figure 3 This is a front sectional view schematic diagram of the upper shell structure of the battery pack of the present utility model;

[0017] Figure 4 This is a schematic diagram of the fan blade frame structure of the present utility model;

[0018] Figure 5 This is a schematic diagram of the mounting frame structure of the present utility model.

[0019] In the figure: 1. Upper shell of the battery pack; 2. Lower shell of the battery pack; 3. Support column; 4. Cooling box; 5. Positioning frame; 6. Battery body; 7. Fixed column; 8. Heat dissipation pipe; 9. First fan; 10. Delivery pump; 11. Dust-proof plate; 12. Mounting frame; 13. Screw; 14. Second fan; 15. Mounting plate; 16. Bolt; 17. Atomizing nozzle; 18. Fan blade frame. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1 to 5 shown, a new energy battery pack cooling device includes an upper shell 1 of the battery pack and a lower shell 2 of the battery pack. Heat dissipation openings are provided on both sides of the upper shell 1 of the battery pack and the lower shell 2 of the battery pack. Support columns 3 are fixedly connected to the top of the inner wall of the upper shell 1 of the battery pack and the bottom of the inner wall of the lower shell 2 of the battery pack. A cooling box 4 is fixedly connected to the surface of the support column 3. A positioning frame 5 is fixedly connected to the surface of the cooling box 4. A battery body 6 is movably connected to the inner wall of the positioning frame 5. The battery body 6 is movably connected to the cooling box 4. Fixed columns 7 are fixedly connected to both sides of the bottom of the lower shell 2 of the battery pack. Heat dissipation pipes 8 are fixedly connected to the top and bottom inside the fixed columns 7. First fans 9 are fixedly connected to both sides of the bottom of the lower shell 2 of the battery pack. A delivery pump 10 is fixedly connected to the surface of the heat dissipation pipe 8. The water outlet of the heat dissipation pipe 8 is communicated with the water inlet of the delivery pump 10. The water outlet of the delivery pump 10 is communicated with the water inlet of the cooling box 4. The water outlet of the cooling box 4 is communicated with the water inlet of the heat dissipation pipe 8.

[0022] Refer to Figure 1 、 Figure 3 and Figure 5, a dust-proof plate 11 is movably connected inside the heat dissipation port. Mounting frames 12 are movably connected to both sides of the upper battery pack housing 1 and the lower battery pack housing 2. The mounting frame 12 is movably connected to the dust-proof plate 11. Screws 13 are movably connected to the surface of the mounting frame 12. The screws 13 are threadedly connected to the upper battery pack housing 1 and the lower battery pack housing 2 respectively. Anti-rust paint is sprayed on the surface of the screws 13.

[0023] As a technical optimization scheme of the present utility model, through the arrangement of the dust-proof plate 11, the mounting frame 12 and the screws 13, the operator puts the dust-proof plate 11 into the heat dissipation port, then fits the mounting frame 12 with the upper battery pack housing 1 or the lower battery pack housing 2, and then uses the screws 13 to fix the mounting frame 12, so that the dust-proof plate 11 cannot be separated from the heat dissipation port.

[0024] Reference Figure 1 , Figure 3 and Figure 5 , a second fan 14 is fixedly connected to the surface of the mounting frame 12 through a bracket. A protective cover is fixedly connected to the surface of the motor of the second fan 14.

[0025] As a technical optimization scheme of the present utility model, through the arrangement of the second fan 14, the operator can start the second fan 14, thereby increasing the air flow speed inside the upper battery pack housing 1 and the lower battery pack housing 2, and then improving the heat dissipation speed of the battery body 6.

[0026] Reference Figure 3 , a plurality of atomizing nozzles 17 are fixedly connected to the bottom of the lower battery pack housing 2. The atomizing nozzles 17 are evenly distributed on the bottom of the lower battery pack housing 2.

[0027] As a technical optimization scheme of the present utility model, through the arrangement of the atomizing nozzles 17, the operator can set a temperature detection module on the surface of the battery body 6. When the temperature of the battery body 6 is relatively high, a water tank can be set inside the vehicle, and a water pump can be set in the water tank, so that the water pump is communicated with the atomizing nozzles 17. Then the operator starts the water pump, so that the atomizing nozzles 17 spray water, and the misty water falls on the surface of the heat dissipation pipe 8. By using the heat absorption of water vaporization, the coolant in the heat dissipation pipe 8 is cooled.

[0028] Reference Figure 1 and Figure 2 , mounting plates 15 are fixedly connected to both sides of the upper battery pack housing 1 and the lower battery pack housing 2. Mounting openings are provided on the surface of the mounting plates 15. Bolts 16 are threadedly connected to the surface of the mounting plates 15. Anti-rust coatings are sprayed on the surface of the bolts 16.

[0029] As a technical optimization solution of the present utility model, through the settings of the mounting plate 15, the mounting opening and the bolt 16, the upper battery pack housing 1 and the lower battery pack housing 2 can be quickly and firmly connected.

[0030] Reference Figures 2 to 4 , a fan frame 18 is movably connected inside the cooling box 4. The number of the fan frames 18 is several, and the fan frames 18 are evenly distributed inside the cooling box 4.

[0031] As a technical optimization solution of the present utility model, through the setting of the fan frame 18, when the coolant in the cooling box 4 flows, it will drive the fan frame 18 to rotate, thereby mixing the coolant in the cooling box 4, and further making the coolant temperatures at various positions in the cooling box 4 basically the same.

[0032] The working principle and usage process of the present utility model: During use, the operator can start the second fan 14, thereby increasing the air flow rate inside the upper battery pack housing 1 and the lower battery pack housing 2, and then performing the first-stage heat dissipation on the battery body 6. The heat generated by the battery body 6 is transferred to the coolant in the cooling box 4. Then the operator starts the delivery pump 10 to make the coolant in the cooling box 4 be delivered into the heat dissipation pipe 8. Then the first fan 9 is started to increase the air flow speed on the surface of the heat dissipation pipe 8, and then dissipate the heat of the coolant in the heat dissipation pipe 8. The cooled coolant flows back into the cooling box 4 and circulates in turn. The coolant in the cooling box 4 at the top of the battery body 6 flows to the upper heat dissipation pipe 8, and the coolant in the cooling box 4 at the bottom of the battery body 6 flows into the interior of the lower heat dissipation pipe 8. Through the setting of the atomizing nozzle 17 in this device, the heat dissipation effect of the cooling box 4 can be enhanced. The battery body 6 itself has excellent waterproof components, so spraying misty water below the lower battery pack housing 2 will not affect the battery body 6.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A new energy battery pack cooling device, comprising a battery pack upper shell (1) and a battery pack lower shell (2), characterized in that: Both sides of the battery pack upper shell (1) and the battery pack lower shell (2) are provided with heat dissipation openings; the top of the inner wall of the battery pack upper shell (1) and the bottom of the inner wall of the battery pack lower shell (2) are fixedly connected to support columns (3); the surface of the support columns (3) is fixedly connected to a cooling box (4); the surface of the cooling box (4) is fixedly connected to a positioning frame (5); the inner wall of the positioning frame (5) is movably connected to a battery body (6); the battery body (6) is movably connected to the cooling box (4); the battery pack lower shell (2) Both sides of the bottom are fixedly connected with fixing columns (7), the top and bottom of the fixing columns (7) are fixedly connected with heat dissipation pipes (8), both sides of the bottom of the battery pack lower shell (2) are fixedly connected with first fans (9), the surface of the heat dissipation pipe (8) is fixedly connected with a delivery pump (10), the water outlet of the heat dissipation pipe (8) is connected with the water inlet of the delivery pump (10), the water outlet of the delivery pump (10) is connected with the water inlet of the cooling box (4), and the water outlet of the cooling box (4) is connected with the water inlet of the heat dissipation pipe (8).

2. A new energy battery pack cooling device according to claim 1, characterized in that: The heat dissipation port is movably connected to a dustproof plate (11) inside, and mounting frames (12) are movably connected to both sides of the battery pack upper shell (1) and the battery pack lower shell (2), and the mounting frame (12) is movably connected to the dustproof plate (11), and the surface of the mounting frame (12) is movably connected to a screw (13), and the screw (13) is respectively threadedly connected to the battery pack upper shell (1) and the battery pack lower shell (2), and the surface of the screw (13) is sprayed with anti-rust paint.

3. A new energy battery pack cooling device according to claim 2, characterized in that: A second fan (14) is fixedly connected to the surface of the mounting frame (12) via a bracket, and a protective cover is fixedly connected to the surface of the motor of the second fan (14).

4. The new energy battery pack cooling device according to claim 1, characterized in that: The bottom of the battery pack lower shell (2) is fixedly connected to an atomizing nozzle (17), the number of the atomizing nozzles (17) is several, and the atomizing nozzles (17) are evenly distributed on the bottom of the battery pack lower shell (2).

5. The new energy battery pack cooling device according to claim 1 is characterized in that: Both sides of the battery pack upper shell (1) and the battery pack lower shell (2) are fixedly connected with a mounting plate (15), a mounting opening is provided on the surface of the mounting plate (15), a bolt (16) is threadedly connected to the surface of the mounting plate (15), and a rust-proof coating is sprayed on the surface of the bolt (16).

6. The new energy battery pack cooling device according to claim 1, characterized in that: The cooling box (4) is movably connected to a fan blade rack (18) inside, and the number of the fan blade racks (18) is a plurality, and the fan blade racks (18) are evenly distributed inside the cooling box (4).

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