Battery pack adopting liquid cooling elbow pipe structure

Abstract

The utility model discloses a battery pack adopting a liquid cooling elbow structure, which comprises a first-layer battery pack, a second-layer battery pack arranged at the upper end of the first-layer battery pack, a third-layer battery pack arranged at the upper end of the second-layer battery pack, bottom feet arranged at two ends of the bottom of the first-layer battery pack, and a battery box arranged on the first-layer battery pack, handles are arranged on the two sides of the upper end of the battery box, three liquid cooling bent pipes are uniformly arranged in the battery box at equal intervals, slots are formed in the four corners of the upper end of the battery box, and pins are arranged at the four corners of the bottom of the battery box. The flow path of the cooling liquid is complicated, the contact area is large, and the space is efficiently utilized; through the design of the multi-layer battery pack, the battery combination is tighter, and the space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy batteries, and in particular to a battery pack adopting a liquid-cooled bent pipe structure. Background Art

[0002] With the widespread application of electric vehicles and various types of electric drive equipment, battery production is increasing, and the problem of battery storage has become prominent. Therefore, battery pack technology has become an important research direction. Battery packs will generate a lot of heat during operation. If this heat cannot be discharged in time, it will have a negative impact on battery performance, and may cause battery overheating or even safety hazards. Therefore, finding an effective battery heat dissipation method is of great significance to ensure the reasonable operation of battery packs and improve the overall performance of power equipment. In order to solve these problems, liquid cooling technology has gradually begun to be used in battery pack heat dissipation. The liquid cooling system uses liquid (such as water, refrigerant, etc.) as a cooling medium to quickly take away heat through a closed pipe system. Since the thermal conductivity of liquid cooling medium is stronger than that of gas, the liquid cooling system can obtain higher heat dissipation efficiency than air cooling under the same volume and mass. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that traditional battery pack heat dissipation methods mostly use air cooling or natural cooling, but these methods have poor heat dissipation effects and cannot meet the needs of high-efficiency and high-power operation of modern electric equipment. For example, the heat dissipation effect of air cooling will be greatly reduced in a high temperature environment.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A battery pack adopting a liquid-cooled bent tube structure includes a first layer of battery packs, a second layer of battery packs is arranged on the upper end of the first layer of battery packs, a third layer of battery packs is arranged on the upper end of the second layer of battery packs, and feet are arranged at both ends of the bottom of the first layer of battery packs. The first layer of battery packs includes a battery box, handles are arranged on both sides of the upper end of the battery box, three liquid-cooled bent tubes are evenly and equidistantly arranged inside the battery box, slots are arranged at the four corners of the upper end of the battery box, pins are arranged at the four corners of the bottom of the battery box, and three liquid-cooled bent tubes are arranged inside the battery box. This is an effective heat dissipation device. Through the flowing cold liquid, it can effectively take away the heat generated by the battery, thereby maintaining a stable temperature during battery operation, improving the working efficiency of the battery, and extending its life. The design of the multi-layer battery pack can maximize the use of space and meet higher power requirements. The reasonable three-layer battery pack setting makes the battery combination more compact and saves space.

[0006] Furthermore, the liquid-cooling bent pipe includes a serpentine plate, one end of the serpentine plate is provided with a water inlet, and the end of the serpentine plate opposite to the water inlet is provided with a water outlet. The design of the serpentine plate makes the path of the coolant flowing through the plate more complicated, thereby increasing the area and time of contact between the coolant and the inner wall of the battery box, thereby improving the heat dissipation efficiency and keeping the battery temperature stable.

[0007] Furthermore, the battery box includes a box body, and three connection holes are evenly and equidistantly arranged on both side ends of the box body, and a plurality of ventilation holes are evenly and equidistantly arranged on the bottom inner side of the box body.

[0008] Furthermore, the water inlet and the water outlet are connected through the connecting hole.

[0009] Furthermore, the slot and the plug pin are pluggable with each other.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. Excellent cooling performance: The liquid cooling elbow installed inside the battery box adopts a serpentine design, which makes the flow path of the coolant complex and the contact area large. It can effectively guide the heat generated by the battery to dissipate, allowing the battery to operate at a stable temperature, improving the battery's operating efficiency and life.

[0012] 2. Efficient space utilization: Through the design of multi-layer battery packs, not only can the battery combination be more compact and space-saving, but also higher power output can be achieved in a limited space to meet the demand for large power. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the first layer battery pack of the utility model;

[0015] Figure 3 It is a schematic diagram of the liquid cooling plate of the utility model;

[0016] Figure 4 It is a schematic diagram of a battery box of the present utility model.

[0017] In the figure, 1-first layer battery pack, 2-second layer battery pack, 3-third layer battery pack, 4-base, 11-battery box, 12-handle, 13-liquid cooling elbow, 14-slot, 15-pin, 131-serpentine plate, 132-water inlet, 133-water outlet, 111-box, 112-connecting hole, 113-ventilation hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Combination Figure 1-4 A battery pack with a liquid-cooled bent tube structure is shown, comprising a first-layer battery pack 1, a second-layer battery pack 2 is arranged on the upper end of the first-layer battery pack 1, a third-layer battery pack 3 is arranged on the upper end of the second-layer battery pack 2, and feet 4 are arranged at both ends of the bottom of the first-layer battery pack 1. The first-layer battery pack 1 comprises a battery box 11, handles 12 are arranged on both sides of the upper end of the battery box 11, three liquid-cooled bent tubes 13 are evenly and equidistantly arranged inside the battery box 11, slots 14 are arranged at the four corners of the upper end of the battery box 11, pins 15 are arranged at the four corners of the bottom of the battery box 11, and three liquid-cooled bent tubes are arranged inside the battery box. This is an effective heat dissipation device. Through the flowing cold liquid, it can effectively take away the heat generated by the battery, thereby maintaining a stable temperature during battery operation, improving the working efficiency of the battery, and extending its life. The design of the multi-layer battery pack can maximize the use of space and meet higher power requirements. The reasonable three-layer battery pack setting makes the battery combination more compact and saves space.

[0020] Among them, the liquid cooling bend 13 includes a serpentine plate 131, one end of the serpentine plate 131 is provided with a water inlet 132, and the opposite end of the serpentine plate 131 to the water inlet 132 is provided with a water outlet 133. The design of the serpentine plate makes the path of the coolant flowing through the plate more complicated, increasing the area and time of contact between the coolant and the inner wall of the battery box, thereby improving the heat dissipation efficiency and maintaining the battery temperature stable; the battery box 11 includes a box body 111, and three connecting holes 112 are evenly and equidistantly arranged on both side ends of the box body 111, and a number of ventilation holes 113 are evenly and equidistantly arranged on the inner bottom of the box body 111; the water inlet 132 and the water outlet 133 are through-connected with the connecting hole 112; the slot 14 and the pin 15 are plug-in-fitted with each other.

[0021] Working principle: Three liquid cooling elbows are set inside the battery box. Through the flowing cold liquid, it can effectively take away the heat generated by the battery, so as to maintain a stable temperature during battery operation. The liquid cooling elbow includes a serpentine plate with a water inlet at one end and a water outlet at the other end. This design makes the path of the coolant flowing through the plate more complicated, increasing the area and time of contact between the coolant and the inner wall of the battery box, thereby improving the heat dissipation efficiency. In the operation of the liquid cooling elbow, the cold liquid flows in from the water inlet, passes through the path of the serpentine plate, passes through the inside of the battery box, takes away the generated heat, and then flows out from the water outlet, and then enters the cooling system for cooling, and then returns to the battery box to form a cycle. The bottom of the battery box is provided with a number of ventilation holes to facilitate the discharge of hot air, which is conducive to maintaining the internal temperature of the battery pack stable. The pins at the bottom of the battery box can be plugged in and out of the slots at the upper end of the upper battery box to form a stable structure.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A battery pack adopting a liquid-cooled bent tube structure, comprising a first layer of battery pack (1), characterized in that: A second layer of battery packs (2) is arranged at the upper end of the first layer of battery packs (1), a third layer of battery packs (3) is arranged at the upper end of the second layer of battery packs (2), feet (4) are arranged at both ends of the bottom of the first layer of battery packs (1), the first layer of battery packs (1) comprises a battery box (11), handles (12) are arranged on both sides of the upper end of the battery box (11), three liquid cooling elbows (13) are evenly and equidistantly arranged inside the battery box (11), slots (14) are arranged at four corners of the upper end of the battery box (11), and pins (15) are arranged at four corners of the bottom of the battery box (11).

2. A battery pack with a liquid-cooled bent tube structure according to claim 1, characterized in that: The liquid-cooling bent pipe (13) comprises a serpentine plate (131), one end of the serpentine plate (131) is provided with a water inlet (132), and the end of the serpentine plate (131) opposite to the water inlet (132) is provided with a water outlet (133).

3. A battery pack with a liquid-cooled bent tube structure according to claim 2, characterized in that: The battery box (11) comprises a box body (111), three connection holes (112) are arranged evenly and equidistantly on both side ends of the box body (111), and a plurality of ventilation holes (113) are arranged evenly and equidistantly on the inner bottom of the box body (111).

4. A battery pack with a liquid-cooled bent tube structure according to claim 3, characterized in that: The water inlet (132) and the water outlet (133) are connected through the connection hole (112).

5. A battery pack with a liquid-cooled bent tube structure according to claim 4, characterized in that: The slot (14) and the plug pin (15) are mutually pluggable.

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