A new energy power automobile battery pack cooling device

Abstract

The utility model relates to new energy battery technical field, and disclose a kind of new energy power automobile battery pack cooling device, including shell, the inner chamber of shell is fixedly connected with battery pack, the top of shell is equipped with cover, the top of cover is equipped with cover, the both sides of shell are fixedly connected with mounting plate, shell, cover and cover are connected by connecting mechanism;Heat dissipation mechanism, heat dissipation mechanism is fixedly connected in the inner chamber of shell, and is used for the heat dissipation of battery pack, and heat dissipation mechanism includes heat dissipation component, heat dissipation component is fixedly connected in the bottom of cover, and is used to improve the heat dissipation effect of battery pack.The utility model is taken away by cooling pipe in heat dissipation mechanism while battery pack heat, cooperate with heat dissipation seat, heat dissipation fin, heat conduction plate and other structure constitute heat dissipation component, pass through water cooling and air cooling synergic heat dissipation, to speed up the discharge of battery pack operating heat, improve this new energy power automobile battery pack's heat dissipation, cooling effect.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, specifically a cooling device for a new energy vehicle battery pack. Background Technology

[0002] An electric vehicle battery is a device that provides electrical energy for the operation of an electric vehicle. Electric vehicle batteries are chemical batteries that convert chemical energy into electrical energy, heat energy, and other reaction products through electrochemical reactions. The electrical energy is used for the electric vehicle's drive system and auxiliary systems; while the cooling device is an indispensable component for the normal operation of the battery pack.

[0003] Existing new energy vehicle power battery packs typically use water cooling or air cooling for cooling. This single cooling method results in poor cooling performance, and prolonged use can easily cause the battery pack temperature to rise, thus affecting range and safety. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for battery packs of new energy vehicles, which solves the problems of single heat dissipation method and poor heat dissipation effect in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A cooling device for a new energy vehicle battery pack, comprising:

[0007] The outer casing has a battery pack fixedly connected to its inner cavity, a cover plate on the top of the outer casing, a cover on the top of the cover plate, and mounting plates fixedly connected to both sides of the outer casing.

[0008] A connecting mechanism located between the outer shell, the cover plate, and the cover;

[0009] A heat dissipation mechanism is fixedly connected to the inner cavity of the outer casing and is used for heat dissipation of the battery pack. The heat dissipation mechanism includes two limiting plates fixedly connected to the inner cavity of the outer casing, a cooling pipe fixedly connected to the inner cavity of the outer casing, a liquid storage tank fixedly connected to the inner cavity of the outer casing, a circulation pump fixedly connected to one side of the liquid storage tank, a thermostat provided in the inner cavity of the liquid storage tank, and a heat dissipation component fixedly connected to the bottom of the cover plate. The heat dissipation component is used to improve the heat dissipation effect of the battery pack.

[0010] Preferably, the battery pack is located between the cooling pipes, the inlet end of the circulation pump is connected to the storage tank, the outlet end of the circulation pump is connected to the cooling pipe, and the end of the cooling pipe away from the circulation pump is connected to the storage tank.

[0011] Preferably, the heat dissipation assembly includes a heat-conducting plate fixedly connected to the bottom of the cover plate, heat dissipation fins fixedly connected to the top of the heat-conducting plate, the heat dissipation fins penetrating the cover plate, an installation groove being provided at the bottom of the heat-conducting plate, a heat dissipation seat being fixedly connected to the inner cavity of the installation groove, and a heat dissipation fan unit being fixedly connected to the top of the cover plate.

[0012] Preferably, the heat sink is made of a material with good thermal conductivity. The bottom of the heat sink has a groove, and the cooling pipe is located in the inner cavity of the groove. The heat sink is hollow inside, and its outer ring and the inner cavity of the groove both have slots. The sides of the heat sink have slots, and the top of the heat sink has a through heat dissipation slot. The heat dissipation slot passes through the cover plate and communicates with the inner cavity of the cover.

[0013] Preferably, the connecting mechanism includes a fixing seat 1 fixedly connecting both sides of the outer shell, a connecting groove 1 is provided on the top of the fixing seat 1, a fixing seat 2 is slidably connected to the inner cavity of the connecting groove 1, a connecting groove 2 is provided on the top of the fixing seat 2, and a fixing block is slidably connected to the inner cavity of the connecting groove 2.

[0014] Preferably, the second fixing seat is fixedly connected to the cover plate, the fixing block is fixedly connected to the cover, a nut is fixedly connected to the inner wall of the first connecting groove, a connecting bolt is movably connected through the top of the fixing block, and the connecting bolt passes through the first fixing seat and the second fixing seat and is movably connected.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0016] 1. This utility model removes heat from the battery pack through the cooling pipes in the heat dissipation mechanism, and together with the heat sink, heat dissipation fins, heat conduction plate and other structures, it forms a heat dissipation component. Through the coordinated heat dissipation of water cooling and air cooling, it accelerates the dissipation of heat from the battery pack and improves the heat dissipation and cooling effect of this new energy vehicle battery pack.

[0017] 2. When assembling this new energy vehicle battery pack, seal the top of the outer shell with the cover plate, and cover the top of the cover plate with the cover. During the process, insert the second fixing seat into the first connecting slot, and insert the fixing block 105 into the second connecting slot. Finally, with the connecting bolts and nuts, the first fixing seat, the second fixing seat and the fixing block can be connected, thereby fixing the outer shell, the cover plate and the cover, improving the ease of installation of this device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the outer shell of this utility model;

[0020] Figure 3This is a schematic diagram of the heat dissipation component structure of this utility model;

[0021] Figure 4 This is a bottom view of the heat dissipation component of this utility model;

[0022] Figure 5 This is a schematic diagram of the heat sink structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the connection mechanism of this utility model.

[0024] The components are as follows: 1. Outer shell; 2. Battery pack; 3. Cover plate; 4. Cooling fan unit; 5. Limiting plate; 6. Cooling pipe; 7. Liquid storage tank; 8. Circulating pump; 9. Cover; 10. Connecting mechanism; 101. Fixing base one; 102. Connecting groove one; 103. Fixing base two; 104. Connecting groove two; 105. Fixing block; 106. Connecting bolt; 108. Nut; 11. Mounting plate; 12. Heat-conducting plate; 13. Heat dissipation fins; 14. Mounting groove; 15. Heat dissipation base; 16. Groove; 17. Slot hole; 18. Slot opening; 19. Heat dissipation slot opening. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 A cooling device for a new energy vehicle battery pack, comprising:

[0027] The outer casing 1 has a battery pack 2 fixedly connected to its inner cavity, a cover plate 3 is provided on the top of the outer casing 1, a cover 9 is provided on the top of the cover plate 3, and mounting plates 11 are fixedly connected to both sides of the outer casing 1.

[0028] The connecting mechanism 10 is located between the outer shell 1, the cover plate 3 and the cover 9;

[0029] A heat dissipation mechanism is fixedly connected to the inner cavity of the outer casing 1 and is used for heat dissipation of the battery pack 2. The heat dissipation mechanism includes two limiting plates 5 fixedly connected to the inner cavity of the outer casing 1, a cooling pipe 6 fixedly connected to the inner cavity of the outer casing 1, a liquid storage tank 7 fixedly connected to the inner cavity of the outer casing 1, a circulation pump 8 fixedly connected to one side of the liquid storage tank 7, a thermostat provided in the inner cavity of the liquid storage tank 7, and a heat dissipation component fixedly connected to the bottom of the cover plate 3. The heat dissipation component is used to improve the heat dissipation effect of the battery pack 2.

[0030] Battery pack 2 is located between cooling pipes 6. The inlet end of the circulation pump 8 is connected to the storage tank 7, the outlet end of the circulation pump 8 is connected to the cooling pipe 6, and the end of the cooling pipe 6 away from the circulation pump 8 is connected to the storage tank 7.

[0031] Please see Figures 3-5 The heat dissipation assembly includes a heat-conducting plate 12 fixedly connected to the bottom of the cover plate 3, a heat dissipation fin 13 fixedly connected to the top of the heat-conducting plate 12, the heat dissipation fin 13 penetrating the cover plate 3, an installation groove 14 opened at the bottom of the heat-conducting plate 12, a heat dissipation seat 15 fixedly connected to the inner cavity of the installation groove 14, and a heat dissipation fan unit 4 fixedly connected to the top of the cover plate 3.

[0032] The heat sink 15 is made of a material with good thermal conductivity. A groove 16 is provided at the bottom of the heat sink 15, and the cooling pipe 6 is located in the inner cavity of the groove 16. The heat sink 15 is hollow inside, and slots 17 are provided on both its outer ring and the inner cavity of the groove 16. Slots 18 are provided on both sides of the heat sink 15, and a heat dissipation slot 19 is provided through the top of the heat sink 15. The heat dissipation slot 19 passes through the cover plate 3 and communicates with the inner cavity of the cover 9.

[0033] In this embodiment of the present invention, during the process of removing the heat generated by the battery pack 2 through the cooling pipe 6 in the heat dissipation mechanism, the cooling fan 4 is turned on to blow air into the cover 9. Part of the heat generated by the battery pack 2 is conducted to the heat sink 15 in the mounting groove 14, and then to the heat dissipation fins 13 on the heat conduction plate 12. By blowing air onto the heat dissipation fins 13, the airflow on their surface is accelerated to improve the heat dissipation effect. At the same time, the accelerated airflow inside the cover 9 will reduce the pressure inside the cover 9. At this time, the air pressure inside the outer shell 1 is greater than the air pressure inside the cover 9, and the heat generated by the battery pack 2 will be discharged into the cover 9 through the heat dissipation slot 19, further improving the heat dissipation and cooling effect of this new energy vehicle battery pack.

[0034] Please see Figure 6 The connecting mechanism 10 includes a fixing seat 101 on both sides of the fixed connecting housing 1. A connecting groove 102 is provided on the top of the fixing seat 101. A fixing seat 2 103 is slidably connected to the inner cavity of the connecting groove 102. A connecting groove 2 104 is provided on the top of the fixing seat 2 103. A fixing block 105 is slidably connected to the inner cavity of the connecting groove 2 104.

[0035] The second fixing seat 103 is fixedly connected to the cover plate 3, the fixing block 105 is fixedly connected to the cover 9, the inner wall of the first connecting groove 102 is fixedly connected to the nut 108, the top of the fixing block 105 is movably connected to the connecting bolt 106, and the connecting bolt 106 passes through the first fixing seat 101 and the second fixing seat 103 and is movably connected.

[0036] In this embodiment of the utility model, when it is necessary to assemble this new energy vehicle battery pack, first cover the top of the outer shell 1 with the cover plate 3, and during the process, insert the second fixing seat 103 into the connecting groove 102 in the first fixing seat 101. Then cover the heat dissipation fins 13 on the top of the cover plate 3 for alignment and protection, and during the process, insert the fixing block 105 into the connecting groove 104. Finally, insert the connecting bolt 106 and cooperate with the nut 108 to connect the outer shell 1, the cover plate 3 and the cover 9, thereby improving the ease of installation of this device.

[0037] When using this new energy vehicle battery pack cooling device, while the battery pack 2 generates heat during operation, the circulation pump 8 is turned on to guide the coolant in the storage tank 7 into the cooling pipe 6. With the help of the slot 18, the heat generated by the battery pack 2 can be carried away. During the process, the cooling fan 4 is turned on to blow air into the cover 9. Some of the heat generated by the battery pack 2 is conducted to the heat sink 15 in the mounting slot 14, and then to the heat dissipation fins 13 on the heat conduction plate 12. By blowing air onto the heat dissipation fins 13, the airflow on their surface is accelerated to improve the heat dissipation effect. At the same time, the accelerated airflow inside the cover 9 will reduce the pressure inside the cover 9. At this time, the air pressure inside the outer shell 1 is greater than the air pressure inside the cover 9. The heat generated by the battery pack 2 will be discharged into the cover 9 through the heat dissipation slot 19. At the same time, with the help of the groove 16 and the slot 17, the heat dissipation of the cooling pipe 6 is accelerated and then discharged from the outer shell 1. This further improves the heat dissipation and cooling effect of this new energy vehicle battery pack.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for a battery pack of a new energy vehicle, characterized in that, include: The outer casing (1) has a battery pack (2) fixedly connected to its inner cavity, a cover plate (3) is provided on the top of the outer casing (1), a cover (9) is provided on the top of the cover plate (3), and mounting plates (11) are fixedly connected to both sides of the outer casing (1). A connecting mechanism (10) is located between the outer shell (1), the cover plate (3), and the cover (9); A heat dissipation mechanism is fixedly connected to the inner cavity of the outer shell (1) and is used for heat dissipation of the battery pack (2). The heat dissipation mechanism includes two limiting plates (5) fixedly connected to the inner cavity of the outer shell (1). A cooling pipe (6) is fixedly connected to the inner cavity of the outer shell (1). A liquid storage tank (7) is fixedly connected to the inner cavity of the outer shell (1). A circulation pump (8) is fixedly connected to one side of the liquid storage tank (7). A thermostat is provided in the inner cavity of the liquid storage tank (7). A heat dissipation component is fixedly connected to the bottom of the cover plate (3). The heat dissipation component is used to improve the heat dissipation effect of the battery pack (2).

2. The cooling device for a new energy vehicle battery pack according to claim 1, characterized in that: The battery pack (2) is located between the cooling pipes (6). The inlet end of the circulation pump (8) is connected to the storage tank (7). The outlet end of the circulation pump (8) is connected to the cooling pipe (6). The end of the cooling pipe (6) away from the circulation pump (8) is connected to the storage tank (7).

3. The cooling device for a new energy vehicle battery pack according to claim 1, characterized in that: The heat dissipation assembly includes a heat-conducting plate (12) fixedly connected to the bottom of the cover plate (3), a heat dissipation fin (13) fixedly connected to the top of the heat-conducting plate (12), the heat dissipation fin (13) penetrating the cover plate (3), an installation groove (14) is provided at the bottom of the heat-conducting plate (12), a heat dissipation seat (15) is fixedly connected to the inner cavity of the installation groove (14), and a heat dissipation fan unit (4) is fixedly connected to the top of the cover plate (3).

4. A cooling device for a new energy vehicle battery pack according to claim 3, characterized in that: The heat sink (15) is made of a material with good thermal conductivity. The bottom of the heat sink (15) is provided with a groove (16). The cooling pipe (6) is located in the inner cavity of the groove (16). The heat sink (15) is hollow inside. The outer ring and the inner cavity of the groove (16) are both provided with slots (17). The heat sink (15) is provided with slots (18) on both sides. The top of the heat sink (15) is provided with a heat dissipation slot (19). The heat dissipation slot (19) passes through the cover plate (3) and communicates with the inner cavity of the cover (9).

5. A cooling device for a new energy vehicle battery pack according to claim 1, characterized in that: The connecting mechanism (10) includes a fixing seat (101) on both sides of the fixed connecting shell (1). The top of the fixing seat (101) is provided with a connecting groove (102). The inner cavity of the connecting groove (102) is slidably connected to a fixing seat (103). The top of the fixing seat (103) is provided with a connecting groove (104). The inner cavity of the connecting groove (104) is slidably connected to a fixing block (105).

6. A cooling device for a new energy vehicle battery pack according to claim 5, characterized in that: The second fixing seat (103) is fixedly connected to the cover plate (3), the fixing block (105) is fixedly connected to the cover (9), the inner wall of the first connecting groove (102) is fixedly connected to a nut (108), the top of the fixing block (105) is movably connected to a connecting bolt (106), and the connecting bolt (106) passes through the first fixing seat (101) and the second fixing seat (103) and is movably connected.

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