Water pipe connector for battery liquid cooling system and battery liquid cooling system

Abstract

The utility model discloses a water pipe connector for a battery liquid cooling system and the battery liquid cooling system.The water pipe connector is used for connecting a liquid cooling box body and a liquid cooling pipe of the battery liquid cooling system, the water pipe connector comprises a first connector section and a second connector section which are sequentially connected in the axial direction of the water pipe connector, and the water pipe connector is connected with the liquid cooling box body through the first connector section; the second connector section is connected with the liquid cooling pipe; the first connector section comprises a first interface, a first flow channel and a second interface which are sequentially distributed in the axial direction of the first connector section and are communicated with one another, the first interface is matched with the connecting end of the liquid cooling box body, the second interface is matched with the connecting end of the liquid cooling pipe, and the radial size of the first flow channel is gradually reduced in the direction from the first interface to the second interface. According to the water pipe connector, the interfaces of different shapes of the liquid cooling box body and the liquid cooling pipe can be switched, and the flow resistance between the liquid cooling box body and the liquid cooling pipe is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of battery cooling, and in particular, relates to a water pipe joint for a battery liquid cooling system and a battery liquid cooling system. Background Art

[0002] During the use of the battery, a liquid cooling system is required to cool the heated battery. The liquid cooling system usually uses a water pipe joint to connect the liquid cooling box and the liquid cooling pipe so that the coolant in the liquid cooling box flows into the liquid cooling pipe to cool the battery.

[0003] However, the current battery liquid cooling box usually uses flat tubes to output coolant, and the liquid cooling tubes are usually round tubes. Ordinary water pipe joints cannot adapt to the shapes of flat tubes and round tubes at the same time. Moreover, due to the different shapes of flat tubes and round tubes, the flow rate of coolant in different tubes is also different. In the process of inputting from the flat tube to the round tube, there will be excessive flow resistance. Utility Model Content

[0004] The present application provides a water pipe joint for a battery liquid cooling system and a battery liquid cooling system. The water pipe joint can transfer interfaces of different shapes between a liquid cooling box and a liquid cooling pipe, and reduce the flow resistance between the liquid cooling box and the liquid cooling pipe.

[0005] The present application provides a water pipe joint for a battery liquid cooling system, wherein the water pipe joint is used to connect a liquid cooling box and a liquid cooling pipe of the battery liquid cooling system, and includes a first joint section and a second joint section which are successively connected along its own axial direction, and the water pipe joint is connected to the liquid cooling box through the first joint section, and is connected to the liquid cooling pipe through the second joint section; the first joint section includes a first interface, a first flow channel, and a second interface which are successively distributed along its own axial direction and are interconnected, the first interface is adapted to the connecting end of the liquid cooling box, and the second interface is adapted to the connecting end of the liquid cooling pipe, and the radial size of the first flow channel tends to gradually decrease from the first interface to the second interface.

[0006] As above, a water pipe connector for a battery liquid cooling system, wherein the first interface is connected to the first end of the first flow channel, and within a first preset plane where the first interface is located, the projection of the first interface falls within the projection range of the first end of the first flow channel.

[0007] As above, the water pipe joint for the battery liquid cooling system, wherein the first interface is a waist-shaped hole for connecting to the flat tube flow channel of the liquid cooling box, and the second interface is a circular hole for connecting to the circular flow channel of the liquid cooling pipe.

[0008] As above, a water pipe connector for a battery liquid cooling system, wherein, along the direction from the first end to the second end of the first flow channel, the first flow channel has a length L, and the first flow channel has a diameter D, and the ratio between the length L and the diameter D of the first flow channel has the following range: L / D>1.

[0009] As above, a water pipe joint for a battery liquid cooling system, wherein the first joint section also includes a packaging portion, the packaging portion and the first interface are located on the same side of the first joint section, the packaging portion is a planar structure, and the packaging portion is attached to and connected to the surface of the liquid cooling box.

[0010] As described above, the water pipe joint for the battery liquid cooling system, wherein the packaging portion is connected to the surface of the liquid cooling box by welding.

[0011] As above, a water pipe joint for a battery liquid cooling system, wherein the second joint section is detachably connected to the liquid cooling pipe, the second joint section has a second flow channel running through it, the first end of the second flow channel is connected to the second interface, and the second end is connected to the connecting end of the liquid cooling pipe.

[0012] As above, a water pipe joint for a battery liquid cooling system, wherein the outer circumferential surface of the second joint section is arranged to fit the inner surface of the liquid cooling tube, and the second joint section has a clamping groove recessed in its outer circumferential surface, and the clamping groove is used to fix the liquid cooling tube.

[0013] As above, the water pipe joint for the battery liquid cooling system, wherein the second flow channel is a cylindrical flow channel, and within the second preset plane where the second interface is located, the projection of the second interface coincides with the projection of the first end of the second flow channel.

[0014] On the other hand, the present application also provides a battery liquid cooling system, which includes a liquid cooling box, a liquid cooling pipe and the above-mentioned water pipe joint, the liquid cooling box has a flat tube flow channel for outputting coolant, and the flat tube flow channel and the liquid cooling pipe are connected through a water pipe joint.

[0015] The water pipe joint of the present application includes a first joint section and a second joint section that are successively connected along its own axial direction. The water pipe joint is connected to the liquid cooling box through the first joint section, and is connected to the liquid cooling pipe through the second joint section. The first joint section includes a first interface, a first flow channel, and a second interface that are successively distributed along its own axial direction and are interconnected. The first interface is adapted to the connecting end of the liquid cooling box, so that the coolant can flow into the first flow channel through the first interface, and the second interface is adapted to the connecting end of the liquid cooling pipe, so that the coolant in the first flow channel can be discharged from the second interface to the liquid cooling pipe, so that liquid cooling boxes and liquid cooling pipes with different shapes and internal flow rates can be transferred through the water pipe joint, and the radial size of the first flow channel tends to gradually shrink from the first interface to the second interface, so that the flow area of ​​the coolant entering the first flow channel from the first interface can gradually decrease with the first flow channel, avoiding a sudden change in the flow area of ​​the coolant, thereby reducing the flow resistance between the liquid cooling box and the liquid cooling pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A cross-sectional view of a water pipe joint according to an embodiment of the present application;

[0018] Figure 2 A front view of a water pipe joint according to an embodiment of the present application;

[0019] Figure 3 A side view of a water pipe connector according to an embodiment of the present application from one perspective;

[0020] Figure 4 A side view of the water pipe connector of the embodiment of the present application from another perspective;

[0021] Figure 5 A cross-sectional view of a battery liquid cooling system according to an embodiment of the present application;

[0022] Figure 6 This is an axonometric diagram of a battery liquid cooling system according to an embodiment of the present application.

[0023] Description of Figure Numbers:

[0024] 10. first joint section; 11. first interface; 12. second interface; 13. first flow channel; 14. packaging part; 20. second joint section; 21. second flow channel; 22. clamping groove;

[0025] 100. Water pipe joint; 200. Liquid cooling box; 210. Flat tube flow channel. DETAILED DESCRIPTION

[0026] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0027] like Figures 1 to 6As shown, an embodiment of the present application provides a water pipe joint for a battery liquid cooling system, wherein the water pipe joint 100 is used to connect a liquid cooling box 200 and a liquid cooling pipe of the battery liquid cooling system, and includes a first joint section 10 and a second joint section 20 which are successively connected along its own axial direction. The water pipe joint 100 is connected to the liquid cooling box 200 through the first joint section 10, and is connected to the liquid cooling pipe through the second joint section 20; the first joint section 10 includes a first interface 11, a first flow channel 13, and a second interface 12 which are successively distributed along its own axial direction and are interconnected, the first interface 11 is adapted to the connecting end of the liquid cooling box 200, the second interface 12 is adapted to the connecting end of the liquid cooling pipe, and the radial dimension of the first flow channel 13 is gradually reduced from the first interface 11 to the second interface 12.

[0028] In a specific implementation, the water pipe joint 100 of the embodiment of the present application includes a first joint section 10 and a second joint section 20 connected successively along its own axial direction. The water pipe joint 100 is connected to the liquid cooling box 200 through the first joint section 10, and is connected to the liquid cooling pipe through the second joint section 20. The first joint section 10 includes a first interface 11, a first flow channel 13 and a second interface 12 that are successively distributed along its own axial direction and are interconnected. The first interface 11 is adapted to the connection end of the liquid cooling box 200, so that the coolant can flow into the first flow channel 13 through the first interface 11, and the second interface 12 is adapted to At the connecting end of the liquid cooling pipe, the coolant in the first flow channel 13 can be discharged to the liquid cooling pipe through the second interface 12, so that the liquid cooling box 200 and the liquid cooling pipe with different shapes and internal flow rates can be transferred through the water pipe joint 100, and the radial dimension of the first flow channel 13 is gradually reduced from the first interface 11 to the second interface 12, so that the flow area of ​​the coolant entering the first flow channel 13 from the first interface 11 can be gradually reduced along with the first flow channel 13, avoiding the sudden change of the coolant flow area, thereby reducing the flow resistance between the liquid cooling box 200 and the liquid cooling pipe.

[0029] Specifically, the radial dimension of the first joint section 10 is greater than the diameter of the second joint section 20, so that the first flow channel 13 of the first joint section 10 has sufficient setting space inside it, so that the radial dimension of the first flow channel 13 can be gradually reduced to a size suitable for the liquid cooling tube and the second joint section 20.

[0030] like Figure 1 and Figure 3 As shown, the water pipe joint for the battery liquid cooling system of the embodiment of the present application, wherein the first interface 11 is connected to the first end of the first flow channel 13, and within the first preset plane where the first interface 11 is located, the projection of the first interface 11 falls within the projection range of the first end of the first flow channel 13. It should be noted that the first preset plane is the end face where the first interface 11 of the first joint section 10 is located.

[0031] In a specific implementation, the projection of the first interface 11 falls within the projection range of the first end of the first flow channel 13, that is, the cross-sectional area of ​​the first end of the first flow channel 13 is larger than the area of ​​the first interface 11, so that when the coolant flows from the first interface 11 to the first end of the first flow channel 13, the coolant has sufficient accommodation space and will not produce a severe impact with the inner surface of the first flow channel 13, thereby reducing the flow resistance of the coolant and allowing the coolant to flow smoothly.

[0032] like Figure 3 and Figure 4 As shown, the water pipe connector for the battery liquid cooling system in the embodiment of the present application, wherein the first interface 11 is a waist-shaped hole for connecting to the flat tube flow channel 210 of the liquid cooling box 200, and the second interface 12 is a circular hole for connecting to the circular flow channel of the liquid cooling pipe, thereby realizing the transfer between the flat tube flow channel 210 and the circular flow channel of the liquid cooling pipe.

[0033] In a specific implementation, the connecting end of the flat tube channel 210 is a waist-shaped hole, which matches the waist-shaped hole of the first interface 11. When the first interface 11 is connected to the connecting end of the flat tube channel 210, the coolant inside the flat tube channel 210 can completely enter the first interface 11, thereby avoiding leakage and loss of the coolant.

[0034] Optionally, the flat tube channel 210 extends out of the liquid cooling box 200 , and the first interface 11 is sleeved on the outer surface of the flat tube channel 210 , further avoiding leakage and loss of the coolant when it enters the first interface 11 from the flat tube channel 210 .

[0035] like Figure 1 As shown, the water pipe joint for the battery liquid cooling system of the embodiment of the present application, wherein, along the direction from the first end to the second end of the first flow channel 13, the first flow channel 13 has a length L, and the first flow channel 13 has a diameter D, and the ratio between the length L and the diameter D of the first flow channel 13 has the following range: L / D>1. Within this range, the first flow channel 13 can ensure a sufficient ratio between the length and the diameter, and ensure a sufficient flow channel length, so that the coolant can be sufficiently buffered by the tapered inner surface in the process of flowing from the first end with a larger radial dimension to the second end, thereby avoiding excessive flow resistance of the coolant in the first flow channel 13.

[0036] like Figure 3 As shown, an embodiment of the present application is a water pipe connector for a battery liquid cooling system, wherein the first connector segment 10 further includes a packaging portion 14, the packaging portion 14 and the first interface 11 are located on the same side of the first connector segment 10, the packaging portion 14 is a planar structure, and the packaging portion 14 is attached to and connected to the surface of the liquid cooling box 200.

[0037] During specific implementation, after the packaging part 14 is connected to the surface of the liquid cooling box 200, the planar structure of the packaging part 14 can fit with the surface of the liquid cooling box 200. Such a configuration ensures that the coolant will not leak from the gap between the packaging part 14 and the surface of the liquid cooling box 200 when passing through the connection part between the packaging part 14 and the surface of the liquid cooling box 200. The configuration of the packaging part 14 ensures the sealing between the water pipe joint 100 and the liquid cooling box 200.

[0038] The water pipe joint for the battery liquid cooling system in the embodiment of the present application, wherein the packaging portion 14 is connected to the surface of the liquid cooling box 200 by welding. The welding connection can make the connection between the packaging portion 14 and the liquid cooling box 200 tighter, thereby preventing the packaging portion 14 from shaking or falling off after the water pipe joint 100 is installed, thereby affecting the overall sealing.

[0039] Optionally, the packaging portion 14 may be connected to the surface of the liquid cooling box 200 by means of an adhesive connection. The adhesive connection is easy to operate and can reduce the overall manufacturing process.

[0040] like Figure 1 and Figure 2 As shown, the water pipe joint for the battery liquid cooling system of the embodiment of the present application, wherein the second joint section 20 is detachably connected to the liquid cooling pipe, the second joint section 20 has a second flow channel 21 running through it, the first end of the second flow channel 21 is connected to the second interface 12, and the second end is connected to the connecting end of the liquid cooling pipe.

[0041] In a specific implementation, the second flow channel 21 can transport the coolant discharged from the second interface 12 to the liquid cooling pipe, and the liquid cooling pipe can be connected to the water pipe joint 100 through the second joint section 20, thereby ensuring the transmission stability of the coolant.

[0042] like Figure 1 and Figure 2 As shown, the water pipe joint for the battery liquid cooling system of the embodiment of the present application, wherein the outer peripheral surface of the second joint segment 20 is arranged to fit the inner surface of the liquid cooling tube, and the coolant can directly flow into the interior of the liquid cooling tube during the process of flowing from the second joint segment 20 to the liquid cooling tube, thereby avoiding leakage of the coolant at the interface part, and the second joint segment 20 has a clamping groove 22 recessed in its outer peripheral surface, and the clamping groove 22 is used to fix the liquid cooling tube, and the liquid cooling tube can be clamped in the clamping groove 22 to achieve fixation with the second joint segment 20.

[0043] Specifically, the clamping groove 22 is arranged around the outer circumference of the second joint section 20, which increases the clamping area between the liquid cooling tube and the clamping groove 22, so that the liquid cooling tube and the second joint section 20 can be stably connected to avoid the liquid cooling tube from falling off.

[0044] Specifically, the inner surface of the liquid cooling tube has a protruding clamping portion, which can be matched with the clamping groove 22 . Such a configuration facilitates clamping between the second joint section 20 and the clamping groove 22 .

[0045] The water pipe connector for a battery liquid cooling system in an embodiment of the present application, wherein the second flow channel 21 is a cylindrical flow channel, and the diameters at various positions in the axial direction of the cylindrical flow channel are equal, so that the coolant has a lower flow resistance when flowing inside the cylindrical flow channel, and within the second preset plane where the second interface 12 is located, the projection of the second interface 12 coincides with the projection of the first end of the second flow channel 21.

[0046] In a specific implementation, the diameter of the second interface 12 is equal to the diameter of the second flow channel 21 , so that the flow area of ​​the coolant does not change when the coolant flows from the second interface 12 into the second flow channel 21 , and the coolant has a lower flow resistance.

[0047] An embodiment of the present application also provides a battery liquid cooling system, which includes a liquid cooling box 200, a liquid cooling pipe and the above-mentioned water pipe joint. The liquid cooling box 200 has a flat tube flow channel 210 for outputting coolant, and the flat tube flow channel 210 and the liquid cooling pipe are connected via a water pipe joint 100.

[0048] The battery liquid cooling system of the present application includes a water pipe joint 100, which includes a first joint section 10 and a second joint section 20 connected successively along its own axial direction. The water pipe joint 100 is connected to the liquid cooling box 200 through the first joint section 10, and is connected to the liquid cooling pipe through the second joint section 20. The first joint section 10 includes a first interface 11, a first flow channel 13 and a second interface 12 that are successively distributed along its own axial direction and are interconnected. The first interface 11 is adapted to the connecting end of the liquid cooling box 200, so that the coolant can flow into the first flow channel 13 through the first interface 11, and the second interface 12 12 is adapted to the connecting end of the liquid cooling pipe, so that the coolant in the first flow channel 13 can be discharged to the liquid cooling pipe from the second interface 12, so that the liquid cooling box 200 and the liquid cooling pipe with different shapes and different internal flow rates can be transferred through the water pipe joint 100, and the radial dimension of the first flow channel 13 is gradually reduced from the first interface 11 to the second interface 12, so that the flow area of ​​the coolant entering the first flow channel 13 from the first interface 11 can be gradually reduced along with the first flow channel 13, avoiding the sudden change of the coolant flow area, thereby reducing the flow resistance between the liquid cooling box 200 and the liquid cooling pipe.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0050] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A water pipe joint for a battery liquid cooling system, characterized in that: Used to connect a liquid cooling box (200) and a liquid cooling pipe of the battery liquid cooling system, the water pipe joint (100) comprising a first joint section (10) and a second joint section (20) which are successively connected along its own axial direction, the water pipe joint (100) being connected to the liquid cooling box (200) via the first joint section (10), and being connected to the liquid cooling pipe via the second joint section (20); The first joint section (10) comprises a first interface (11), a first flow channel (13) and a second interface (12) which are distributed successively along its own axial direction and are interconnected, the first interface (11) is adapted to the connection end of the liquid cooling box (200), the second interface (12) is adapted to the connection end of the liquid cooling pipe, and the radial dimension of the first flow channel (13) is gradually reduced from the first interface (11) to the second interface (12).

2. The water pipe joint for a battery liquid cooling system according to claim 1, characterized in that: The first interface (11) is connected to the first end of the first flow channel (13), and within a first preset plane where the first interface (11) is located, the projection of the first interface (11) falls within the projection range of the first end of the first flow channel (13).

3. The water pipe joint for a battery liquid cooling system according to claim 2, characterized in that: The first interface (11) is a waist-shaped hole, used to connect to the flat tube flow channel (210) of the liquid cooling box (200), and the second interface (12) is a circular hole, used to connect to the circular flow channel of the liquid cooling tube.

4. The water pipe joint for a battery liquid cooling system according to claim 1, characterized in that: Along the direction from the first end to the second end of the first flow channel (13), the first flow channel (13) has a length L, and the first flow channel (13) has a diameter D, and the ratio between the length L and the diameter D of the first flow channel (13) has the following range: L / D>1.

5. The water pipe joint for a battery liquid cooling system according to claim 1, characterized in that: The first joint section (10) further comprises a packaging portion (14), wherein the packaging portion (14) and the first interface (11) are located on the same side of the first joint section (10), and the packaging portion (14) is a planar structure, and the packaging portion (14) is arranged to be in contact with and connected to the surface of the liquid cooling box (200).

6. The water pipe joint for a battery liquid cooling system according to claim 5, characterized in that: The packaging portion (14) is connected to the surface of the liquid cooling box (200) by welding.

7. The water pipe joint for a battery liquid cooling system according to claim 1, characterized in that: The second joint section (20) is detachably connected to the liquid cooling tube, and the second joint section (20) has a second flow channel (21) extending therethrough, a first end of the second flow channel (21) being connected to the second interface (12), and a second end being connected to the connecting end of the liquid cooling tube.

8. The water pipe joint for a battery liquid cooling system according to claim 7, characterized in that: The outer peripheral surface of the second joint section (20) is arranged to fit the inner surface of the liquid cooling tube, and the second joint section (20) has a clamping groove (22) recessed in its outer peripheral surface, and the clamping groove (22) is used to fix the liquid cooling tube.

9. The water pipe joint for a battery liquid cooling system according to claim 7, characterized in that: The second flow channel (21) is a cylindrical flow channel, and within a second preset plane where the second interface (12) is located, the projection of the second interface (12) coincides with the projection of the first end of the second flow channel (21).

10. A battery liquid cooling system, characterized in that: It comprises a liquid cooling box (200), a liquid cooling pipe and a water pipe joint as described in any one of claims 1 to 9, wherein the liquid cooling box (200) has a flat tube flow channel (210) for outputting cooling liquid, and the flat tube flow channel (210) and the liquid cooling pipe are connected via the water pipe joint (100).

Images