Liquid cooling pipeline winding device

Abstract

The utility model discloses a liquid cooling pipeline winding device, which relates to the technical field of battery pack cooling, and comprises two positioning mechanisms, each positioning mechanism comprises a positioning block, a filler strip, a limiting strip and an adjusting rod, the adjusting rod is arranged between the two positioning mechanisms, and the adjusting rod telescopically adjusts the distance between the two positioning mechanisms. The adjusting rod is contracted to enable the positioning blocks of the two positioning mechanisms to be clamped on the two sides of the battery pack, the limiting strip is rotationally pressed at the upper end of the liquid cooling pipeline to limit the liquid cooling pipeline, pressure is applied to the liquid cooling pipeline extending out of one side of the battery pack, and the liquid cooling pipeline can be bent on the filler strip. According to the liquid cooling pipeline winding device, the bent liquid cooling pipeline is prevented from applying pressure to the side edge of the battery pack through the filler strip, and the problem that in the metal pipe bending process of an existing liquid cooling pipeline winding device, the bent part of the metal liquid cooling pipeline can apply pressure to the side edge of the battery pack, and the appearance of the battery pack slightly deforms easily is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack cooling, in particular to a liquid cooling pipeline winding device. Background Art

[0002] The battery pack cooling system is a crucial component of the battery management system (BMS), especially in electric vehicles (EVs), energy storage systems, and other high-power applications. Batteries generate significant heat during charging and discharging. Failure to dissipate this heat can lead to decreased battery performance, shortened lifespan, and even safety issues such as overheating and fire. Therefore, designing an efficient and reliable battery pack cooling system is crucial.

[0003] Common battery pack cooling methods include air cooling, liquid cooling, phase change material cooling, and heat pipe cooling. Liquid cooling (liquid cooling) uses a pump to circulate a coolant (usually water or a water-ethylene glycol mixture) through cooling pipes or cooling plates within the battery pack, removing heat generated by the batteries. This method offers the advantages of high heat dissipation efficiency, the ability to dissipate large amounts of heat in a short period of time, and high temperature control accuracy, effectively maintaining the battery's operating temperature. It is widely used in high-power, high-energy-density battery systems, such as electric vehicles (EVs), energy storage systems, and large industrial batteries.

[0004] Common cooling pipe materials include polyethylene, polypropylene, stainless steel, and aluminum alloy. Metal cooling pipes such as stainless steel and aluminum alloy offer advantages such as excellent thermal conductivity, high structural strength, corrosion resistance, and long lifespan. Therefore, metal cooling pipes are more suitable for automotive battery packs. Existing metal cooling pipes can be categorized by their shape: straight, curved, flat, and spiral. Spiral cooling pipes are constructed by wrapping a metal tube in a spiral shape around the battery pack to increase its surface area and improve heat exchange efficiency. This type of pipe typically offers higher fluid flow intensity and better heat exchange performance.

[0005] The spiral cooling pipe design, which curves around the battery pack, is based on a method of spirally bending a metal tube to accommodate the battery pack's shape and structural requirements. Existing liquid cooling pipe bending equipment includes pressing devices (which fit the tube to the end face of the battery pack) and bending devices (which bend the tube around the side of the battery pack). However, when the liquid cooling pipe winding device bends the metal tube, the curved portion of the metal liquid cooling pipe exerts pressure on the side of the battery pack, which can easily cause slight deformation (small dents) in the battery pack's shape. To address the aforementioned issues, a liquid cooling pipe winding device is now provided. Utility Model Content

[0006] The purpose of the present utility model is to provide a liquid cooling pipe winding device to solve the problem proposed in the above background technology that during the bending process of the metal pipe in the existing liquid cooling pipe winding device, the bent part of the metal liquid cooling pipe will exert pressure on the side of the battery pack, which may easily cause slight deformation of the battery pack shape.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid cooling pipe winding device, comprising a positioning mechanism, wherein the positioning mechanism is provided with two, and the positioning mechanism comprises a positioning block, a pad and a limit strip;

[0008] An adjusting rod, the adjusting rod is installed between the two positioning mechanisms;

[0009] The adjusting rod is extended and retracted to adjust the distance between the two positioning mechanisms. The adjusting rod is retracted to clamp the positioning blocks of the two positioning mechanisms on both sides of the battery pack. The limit bar is rotated to press on the upper end of the liquid cooling pipeline to limit the liquid cooling pipeline. Pressure is applied to the liquid cooling pipeline extending from one side of the battery pack, and the liquid cooling pipeline can bend on the pad.

[0010] As a preferred technical solution of the present invention, two positioning blocks are fixedly sleeved on the two ends of the two pads, and one end of the limiting strip is rotatably connected to the upper end of one positioning block.

[0011] As an optimal technical solution of the present invention, a rotating frame is rotatably installed on the upper end of another positioning block, a pressure rod is fixedly connected to the other end of the limiting bar, and a pressure plate for limiting the pressure rod is slidably installed inside the rotating frame.

[0012] As a preferred technical solution of the present invention, a first screw rod for controlling the pressure plate is threadedly inserted into the upper end of the rotating frame, and the first screw rod is rotatably connected to the upper end of the pressure plate.

[0013] As an optimal technical solution of the present invention, the adjusting rod includes a rotating cylinder and a second screw, the rotating cylinder is rotatably connected to the outer wall of one pad, the second screw is fixedly connected to the outer wall of another pad, and the rotating cylinder and the second screw are threadedly connected.

[0014] As a preferred technical solution of the present invention, a telescopic rod is installed between the positioning blocks of the two positioning mechanisms to keep the two pads parallel.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model adjusts the distance between the two positioning mechanisms by extending and retracting the adjusting rod, and contracts the adjusting rod so that the positioning blocks of the two positioning mechanisms are clamped on both sides of the battery pack. The limit bar rotates and presses on the upper end of the liquid cooling pipeline to limit the liquid cooling pipeline. Pressure is applied to the liquid cooling pipeline extending from one side of the battery pack, so that the liquid cooling pipeline can bend on the pad. The pad is used to prevent the bent liquid cooling pipeline from applying pressure to the side of the battery pack, which solves the problem that in the process of bending the metal tube by the existing liquid cooling pipeline winding device, the bent part of the metal liquid cooling pipeline will apply pressure to the side of the battery pack, which may easily cause slight deformation of the battery pack shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the installation structure of the winding device according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the winding device according to an embodiment of the utility model;

[0019] Figure 3 This is a rear structural diagram of a winding device according to an embodiment of the present invention;

[0020] Figure 4 This is an exploded view of the positioning mechanism of an embodiment of the present utility model.

[0021] In the figure: 1. Positioning mechanism; 11. Positioning block; 12. Pad; 13. Limiting bar; 131. Pressing rod; 2. Rotating frame; 21. Pressing plate; 22. First screw; 3. Telescopic rod; 4. Adjusting rod; 41. Rotating cylinder; 42. Second screw; 5. Main body; 51. Heat conduction plate; 52. Heat conduction tube. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 This embodiment provides a liquid cooling pipe winding device, including a positioning mechanism 1, the positioning mechanism 1 includes a positioning block 11, a pad 12 and a limit strip 13, as shown Figure 2 and Figure 4 As shown, two positioning blocks 11 are provided, and both ends of the pad strip 12 are connected with plug-in blocks, and both ends of the positioning block 11 are sleeved on the plug-in blocks of the pad strip 12 .

[0024] like Figure 2 and Figure 3As shown, two positioning mechanisms 1 are provided, and the two positioning mechanisms 1 are symmetrically arranged in the upper and lower parts. Taking the upper positioning mechanism 1 as an example, one end of the limit bar 13 is rotatably connected to the upper end of the positioning block 11, and the upper end of the other positioning block 11 is rotatably connected to the rotating frame 2. The other end of the limit bar 13 is fixedly connected to the pressure rod 131. By rotating the rotating frame 2 and the limit bar 13, the pressure rod 131 is slidably positioned within the rotating frame 2. A pressure plate 21 is slidably mounted inside the rotating frame 2. The upper end of the rotating frame 2 is threadedly connected to a first screw rod 22, and the first screw rod 22 extends into the rotating frame 2. The end of the first screw 22 extending into the rotating frame 2 is rotatably linked to the upper end of the pressure plate 21. By rotating the first screw 22, the sliding of the pressure plate 21 inside the rotating frame 2 can be adjusted.

[0025] like Figure 2 and Figure 3 As shown, a telescopic rod 3 is installed between the positioning blocks 11 of the upper and lower positioning mechanisms 1. The telescopic rod 3 includes a sleeve and a sleeve rod. The sleeve is fixedly connected to one positioning block 11, and the sleeve rod is fixedly connected to the other positioning block 11. The sleeve rod is slidably inserted into the sleeve, and the two positioning mechanisms 1 are kept in a parallel state by the two telescopic rods 3.

[0026] An adjusting rod 4 is also installed between the two positioning mechanisms 1. The adjusting rod 4 includes a rotating cylinder 41 and a second screw 42, wherein the rotating cylinder 41 is rotatably connected to one pad 12, and the second screw 42 is fixedly connected to the other pad 12. A threaded hole is provided at the upper end of the rotating cylinder 41, and the second screw 42 is threadedly connected to the threaded hole of the rotating cylinder 41. By rotating the rotating cylinder 41, the second screw 42 can be driven to move up and down, that is, the distance between the two positioning mechanisms 1 can be adjusted by the adjusting rod 4.

[0027] The positioning mechanism 1 is mounted on the side of the battery pack's main body 5. Thermal conductive plates 51, used for heat conduction, are fixedly connected to the upper and lower end surfaces of the main body 5. The thermal conductive tube 52 of the liquid cooling circuit is designed to be wound around the outer walls of the main body 5 and thermal conductive plate 51. However, in actual operation, the metal thermal conductive tube 52 is relatively hard. When the thermal conductive tube 52 is wound, the bends in the thermal conductive tube 52 exert significant pressure on the sides of the main body 5 and thermal conductive plate 51, which can easily cause deformation of the main body 5 and thermal conductive plate 51. Therefore, the positioning mechanism 1 is required to support the sides of the main body 5 and thermal conductive plate 51.

[0028] The cross section of the positioning block 11 is an L-shaped structure. Figure 1As shown, during use, the inner side of the positioning block 11 is placed against the side of the thermal conductive plate 51, and the two positioning mechanisms 1 are brought closer together by rotating the rotating cylinder 41. The positioning blocks 11 of the two positioning mechanisms 1 are then clamped against the side walls of the main body 5 and the thermal conductive plate 51. At this point, taking the upper positioning mechanism 1 as an example, the upper end of the backing strip 12 is flush with the end surface of the upper thermal conductive plate 51. After the thermal conductive tube 52 extends from the side of the thermal conductive plate 51, the thermal conductive tube 52 is positioned above the backing strip 12. The backing strip 12 is then placed below the thermal conductive tube 52. Using the backing strip 12 as a fulcrum, downward pressure is applied to the extended thermal conductive tube 52, thereby bending the thermal conductive tube 52.

[0029] When the heat conducting tube 52 is bent, the heat conducting tube 52 on the heat conducting plate 51 may tilt due to the fulcrum. Therefore, before the heat conducting tube 52 is bent, the limit bar 13 is rotated to press the limit bar 13 against the heat conducting tube 52. The first screw 22 is tightened to press the pressure plate 21 against the pressure rod 131, thereby limiting the limit bar 13 and preventing it from rotating. By fixing the heat conducting tube 52 on the heat conducting plate 51 with the limit bar 13, the heat conducting tube 52 on the heat conducting plate 51 can be prevented from tilting after the heat conducting tube 52 is bent.

[0030] When the position of the positioning mechanism 1 needs to be changed, the limit bar 13 is rotated to open, as shown in FIG. Figure 4 As shown, by separating the positioning block 11 from the pad 12 , the positioning mechanism 1 can be pulled out from the bending portion of the temperature conducting tube 52 and replaced.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid cooling pipe winding device, characterized in that: include: A positioning mechanism (1), wherein two positioning mechanisms (1) are provided, and the positioning mechanism (1) comprises a positioning block (11), a pad (12) and a limit strip (13); An adjusting rod (4), the adjusting rod (4) being installed between the two positioning mechanisms (1); The adjusting rod (4) is extended and retracted to adjust the distance between the two positioning mechanisms (1). The adjusting rod (4) is retracted so that the positioning blocks (11) of the two positioning mechanisms (1) are clamped on both sides of the battery pack. The limiting strip (13) is rotated to press on the upper end of the liquid cooling pipeline to limit the liquid cooling pipeline. Pressure is applied to the liquid cooling pipeline extending from one side of the battery pack so that the liquid cooling pipeline can be bent on the pad (12).

2. The liquid cooling pipe winding device according to claim 1, characterized in that: The two positioning blocks (11) are fixedly sleeved on the two ends of the two pads (12), and one end of the limiting strip (13) is rotatably connected to the upper end of one positioning block (11).

3. The liquid cooling pipe winding device according to claim 2, characterized in that: A rotating frame (2) is rotatably mounted on the upper end of the other positioning block (11), a pressure rod (131) is fixedly connected to the other end of the limiting bar (13), and a pressure plate (21) for limiting the pressure rod (131) is slidably mounted inside the rotating frame (2).

4. The liquid cooling pipe winding device according to claim 3, characterized in that: A first screw rod (22) for controlling the pressing plate (21) is threadedly inserted into the upper end of the rotating frame (2), and the first screw rod (22) is rotatably connected to the upper end of the pressing plate (21).

5. The liquid cooling pipe winding device according to claim 2, characterized in that: The adjusting rod (4) comprises a rotating cylinder (41) and a second screw (42), wherein the rotating cylinder (41) is rotatably connected to the outer wall of one pad (12), and the second screw (42) is fixedly connected to the outer wall of another pad (12), and the rotating cylinder (41) and the second screw (42) are threadedly connected.

6. The liquid cooling pipe winding device according to claim 5, characterized in that: A telescopic rod (3) for keeping the two pads (12) parallel is installed between the positioning blocks (11) of the two positioning mechanisms (1).

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