New energy vehicle battery heat exchange cooling device

Abstract

The utility model discloses a new energy vehicle battery heat exchange cooling device which comprises a battery pack, a mounting base is fixedly arranged at the end of the battery pack, a first limiting frame is fixedly installed on the side wall of the bottom of the battery pack, and meanwhile a second limiting frame is fixedly installed on the other side of the side wall of the bottom of the battery pack. A cooling disc is fixedly arranged in the battery pack, the cooling disc is hollow, and a medium inlet pipe is fixedly mounted at one end of the cooling disc. According to the new energy vehicle battery heat exchange cooling device, the cooling disc can be in large-area contact with the battery monomers or modules; the battery at each part can be ensured to be effectively cooled, and the condition of local overheating is avoided; due to the arrangement mode of the coil pipes, the cooling liquid can uniformly flow through different areas of the battery pack, so that the temperature distribution of the whole battery pack is more uniform; and the performance and the service life of the battery pack can be improved.

Description

Technical Field

[0001] This utility model relates to the field of battery cooling devices, specifically a heat exchange and cooling device for new energy vehicle batteries. Background Technology

[0002] The working principle of the water-cooling system for new energy vehicle batteries is as follows: The water-cooling system uses the circulation of coolant in pipes to remove the heat generated by the battery. When the battery is working, it generates heat, causing its own temperature to rise. After the temperature sensor detects the temperature change, it transmits the signal to the Battery Management System (BMS). The BMS activates the water-cooling system according to the preset temperature range. The coolant is usually a liquid with good thermal conductivity and stability, such as an aqueous solution of ethylene glycol. It can absorb the heat generated by the battery and carry the heat to the radiator for dissipation. The specific cooling process is as follows: The coolant flows out of the water tank under the push of the water pump and enters the cooling pipes. The coolant flows in the cooling pipes, exchanges heat with the battery surface, and absorbs the heat generated by the battery. The coolant temperature rises after absorbing heat and then flows to the radiator. In the radiator, the coolant dissipates the heat into the air, and its own temperature decreases. The cooled coolant returns to the water tank to prepare for the next cycle.

[0003] When the coolant is cooling the batteries inside the battery pack, it cannot penetrate deep into the battery pack to dissipate heat between adjacent rows of batteries. This results in insufficient and uneven heat dissipation, leading to poor heat dissipation and increasing the risk of spontaneous combustion upon impact. Utility Model Content

[0004] The purpose of this utility model is to provide a heat exchange and cooling device for new energy vehicle batteries to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, a heat exchange and cooling device for a new energy vehicle battery is provided, comprising a battery pack. A mounting base is fixedly provided at one end of the battery pack, and a first limiting frame is fixedly installed on the bottom side wall of the battery pack. A second limiting frame is fixedly installed on the other side of the bottom side wall of the battery pack. A cooling plate is fixedly provided inside the battery pack. The cooling plate is hollow, and a medium inlet pipe is fixedly installed at one end of the cooling plate. A medium outlet pipe is fixedly installed at the end of the cooling plate away from the medium inlet pipe. A support base is fixedly installed inside the first limiting frame, and a reinforcing plate is fixedly provided at the bottom of the battery pack.

[0006] Preferably, the cooling plate is S-shaped and is curved and coiled inside the battery pack, while the end of the cooling plate is U-shaped.

[0007] Preferably, the two ends of the cooling plate are respectively disposed inside the first limiting frame and the second limiting frame, and both the first limiting frame and the second limiting frame are rectangular. At the same time, the two ends of the cooling plate are protected by the first limiting frame and the second limiting frame.

[0008] Preferably, multiple sets of support seats are fixedly installed inside the first limiting frame and the second limiting frame, and the support seats are arranged in an isosceles trapezoidal shape, with through holes opened inside the support seats.

[0009] Preferably, both ends of the battery pack are fixedly provided with mounting bases, and the mounting bases are rectangular in shape, with mounting holes opened inside the mounting bases.

[0010] Preferably, four sets of through holes are evenly provided on the reinforcing plate, and four sets of screw holes are evenly provided on the bottom of the battery pack. The screw holes are matched with the size of the fixing bolts, and the fixing bolts are screwed and fixed inside the screw holes provided on the bottom of the battery pack through the through holes on the reinforcing plate. Multiple sets of heat dissipation vents are evenly provided on the reinforcing plate, and the distance between two adjacent sets of heat dissipation vents is consistent. The heat dissipation vents are regular hexagonal structures.

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

[0012] 1. This utility model features a cooling disc that is spiraled inside the battery pack and wraps around the outside of the battery pack. This allows the cooling disc to make large-area contact with individual battery cells or modules, ensuring that all parts of the battery are effectively cooled and preventing localized overheating. The coil layout allows the coolant to flow more evenly through different areas of the battery pack, resulting in a more uniform temperature distribution throughout the entire battery pack. This helps to improve the performance and lifespan of the battery pack.

[0013] 2. This utility model provides side impact protection for the battery pack, the internal battery pack, and the external cooling plate by uniformly fixing multiple sets of support seats inside the first and second limiting frames. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A bottom view;

[0016] Figure 3 for Figure 1 Top view;

[0017] Figure 4 for Figure 1 A sectional view.

[0018] The following are the labels in the diagram: 1. Battery pack; 2. Mounting base; 21. Mounting hole; 3. First limiting frame; 31. Second limiting frame; 4. Cooling plate; 41. Medium inlet pipe; 42. Medium outlet pipe; 5. Support base; 51. Perforation; 6. Reinforcing plate; 61. Heat dissipation port; 62. Fixing bolt. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a heat exchange and cooling device for a new energy vehicle battery, including a battery pack 1. A mounting base 2 is fixedly installed at one end of the battery pack 1, and a first limiting frame 3 is fixedly installed on the bottom side wall of the battery pack 1. At the same time, a second limiting frame 31 is fixedly installed on the other side of the bottom side wall of the battery pack 1. A cooling plate 4 is fixedly installed inside the battery pack 1. The cooling plate 4 is hollow. A medium inlet pipe 41 is fixedly installed at one end of the cooling plate 4, and a medium outlet pipe 42 is fixedly installed at the end of the cooling plate 4 away from the medium inlet pipe 41. A support base 5 is fixedly installed inside the first limiting frame 3, and a reinforcing plate 6 is fixedly installed at the bottom of the battery pack 1.

[0021] Working Principle: During use, a large number of battery packs are fixedly installed inside the battery pack 1, and the mounting seats 2 on both sides of the battery pack 1 are placed on the vehicle chassis and secured with screws through the mounting seats 2 and mounting holes 21. When cooling of the battery packs inside the battery pack 1 is required, coolant enters the cooling plate 4 from the medium inlet pipe 41 and exits from the medium outlet pipe 42. The cooling plate 4 is arranged in a meandering spiral inside the battery pack 1 and wraps around the outside of the battery packs, allowing for large-area contact with individual battery cells or modules. This ensures that all parts of the battery are effectively cooled, preventing localized overheating. The coil layout allows the coolant to flow more evenly through different areas of the battery pack, resulting in a more uniform temperature distribution throughout the entire battery pack. This helps improve the performance and lifespan of the battery pack. Because excessive temperature differences can lead to uneven chemical reactions inside the battery, which in turn affects the battery's capacity, charge and discharge efficiency, and cycle life; the meandering cooling coil greatly increases the heat exchange area with the battery; when the coolant flows in the coil, it can fully absorb the heat generated by the battery and improve heat dissipation efficiency; the two ends of the cooling plate 4 are protected by the first limiting frame 3 and the second limiting frame 31; multiple sets of support seats 5 are evenly fixed inside the first limiting frame 3 and the second limiting frame 31. The multiple sets of support seats 5 and the first limiting frame 3 and the second limiting frame 31 can provide side impact protection for the battery pack 1, the internal battery pack, and the external cooling plate 4. At the same time, a reinforcing plate 6 is fixedly installed at the bottom of the battery pack 1 to increase the strength of the battery pack 1. At the same time, multiple sets of heat dissipation vents 61 are evenly opened on the surface of the reinforcing plate 6 to facilitate heat dissipation at the bottom of the battery pack 1.

[0022] In a preferred embodiment, the cooling plate 4 is S-shaped and is curved and coiled inside the battery pack 1, while the end of the cooling plate 4 is U-shaped.

[0023] The two ends of the cooling plate 4 are respectively set inside the first limiting frame 3 and the second limiting frame 31, and the first limiting frame 3 and the second limiting frame 31 are both rectangular. At the same time, the two ends of the cooling plate 4 are protected by the first limiting frame 3 and the second limiting frame 31.

[0024] Multiple sets of support seats 5 are fixedly installed inside the first limiting frame 3 and the second limiting frame 31. The support seats 5 are set in an isosceles trapezoidal shape, and a through hole 51 is opened inside the support seats 5.

[0025] As a preferred embodiment, both ends of the battery pack 1 are fixedly provided with mounting bases 2, and the mounting bases 2 are rectangular in shape, with mounting holes 21 opened inside the mounting bases 2.

[0026] Four sets of through holes are evenly opened on the reinforcing plate 6, and four sets of screw holes are evenly opened on the bottom of the battery pack 1. The screw holes are matched with the size of the fixing bolts 62, and the fixing bolts 62 pass through the through holes on the reinforcing plate 6 and are screwed into the screw holes opened on the bottom of the battery pack 1. Multiple sets of heat dissipation vents 61 are evenly opened on the reinforcing plate 6, and the distance between two adjacent sets of heat dissipation vents 61 is the same. The heat dissipation vents 61 are regular hexagonal structures.

[0027] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle battery heat exchange cooling device, comprising a battery pack (1), characterized in that: The end of the battery pack (1) is fixedly provided with a mounting seat (2), the bottom side wall of the battery pack (1) is fixedly provided with a first limiting frame (3), the other side of the bottom side wall of the battery pack (1) is fixedly provided with a second limiting frame (31), the inside of the battery pack (1) is fixedly provided with a cooling disc (4), the cooling disc (4) is hollow, one end of the cooling disc (4) is fixedly provided with a medium inlet pipe (41), the other end of the cooling disc (4) away from the medium inlet pipe (41) is fixedly provided with a medium outlet pipe (42), the inside of the first limiting frame (3) is fixedly provided with a support seat (5), and the bottom of the battery pack (1) is fixedly provided with a reinforcing sheet (6).

2. The battery heat exchange cooling device for a new energy vehicle according to claim 1, characterized in that: The cooling disc (4) is "S"-shaped, and the cooling disc (4) is curved and spirals in the inside of the battery pack (1), and the end of the cooling disc (4) is "U"-shaped.

3. The battery heat exchange cooling device for a new energy vehicle according to claim 2, characterized in that: The two ends of the cooling disc (4) are arranged in the inside of the first limiting frame (3) and the second limiting frame (31) respectively, the first limiting frame (3) and the second limiting frame (31) are rectangular, and the two ends of the cooling disc (4) are protected by the first limiting frame (3) and the second limiting frame (31).

4. The battery heat exchange cooling device for a new energy vehicle according to claim 1, characterized in that: A plurality of support seats (5) are fixedly arranged in the inside of the first limiting frame (3) and the second limiting frame (31), the support seat (5) is isosceles trapezoidal, and a plurality of perforations (51) are arranged in the inside of the support seat (5).

5. The new energy vehicle battery heat exchange cooling device according to claim 1, characterized in that: The two ends of the battery pack (1) are fixedly provided with mounting seats (2), and the mounting seat (2) is rectangular, and a mounting hole (21) is arranged in the inside of the mounting seat (2).

6. The battery heat exchange cooling device for a new energy vehicle according to claim 1, characterized in that: Four groups of insertion holes are arranged in the reinforcing sheet (6) in a uniform manner, four groups of threaded holes are arranged in the bottom of the battery pack (1) in a uniform manner, the threaded holes are matched with the size of the fixing bolts (62), the fixing bolts (62) are screwed into the threaded holes arranged in the bottom of the battery pack (1) through the insertion holes arranged in the reinforcing sheet (6), a plurality of heat dissipation holes (61) are arranged in the reinforcing sheet (6) in a uniform manner, the distance between adjacent two groups of heat dissipation holes (61) is consistent, and the heat dissipation hole (61) is a regular hexagonal structure.

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