Integrated connecting pipe and water cooling plate with same

Abstract

The utility model relates to the technical field of battery liquid cooling systems, and discloses an integrated connecting pipe and a water cooling plate with the connecting pipe, the integrated connecting pipe comprises a water inlet nozzle and a water outlet nozzle, the water inlet nozzle is communicated with a water inlet of the water cooling plate and used for allowing cooling liquid to flow in, and the water outlet nozzle is communicated with a water outlet of the water cooling plate. The water outlet nozzle is communicated with the water outlet of the water cooling plate and used for allowing cooling liquid to flow out, the water inlet nozzle and the water outlet nozzle are integrally designed, and compared with the split design of a conventional connecting pipe, the structural strength is high. When the flow speed and the pressure of the cooling liquid are increased, the connecting pipe is not prone to deformation or even breakage due to impact of the cooling liquid, and the pressure drop capacity is high. When the connecting pipe is applied to the battery liquid cooling system, the heat dissipation effect of the water cooling plate is good, the actual electric quantity of the battery is improved, and the cruising ability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery liquid cooling systems, and in particular to an integrated connecting pipe and a water-cooling plate having the connecting pipe. Background Art

[0002] With rising consumer awareness of environmental protection and increasingly stringent domestic environmental standards, new energy vehicles have become a key battleground for traditional automakers and emerging car manufacturers, paving the way for future development. Lithium batteries are the primary power source for new energy vehicles, but technological breakthroughs are driving higher demands on the safety and lifespan of battery liquid cooling systems. The water cooling plate plays a crucial role in liquid cooling systems, and with the constant upgrading of batteries, upgrading these plates is essential.

[0003] In related technologies, a water-cooled plate is provided with a water inlet for coolant flow and a water outlet for coolant flow. The water inlet is connected to a water inlet nozzle, and the water outlet is connected to a water outlet nozzle. During use, coolant flows along the water inlet nozzle into the water inlet and out of the water outlet nozzle. Since the heat dissipation effect of a water-cooled plate is related to the flow rate and pressure of the coolant, the higher the flow rate and pressure of the coolant, the better the heat dissipation effect of the water-cooled plate. Therefore, increasing the flow rate and pressure of the coolant can improve the heat dissipation effect of the water-cooled plate.

[0004] However, the current conventional water inlet and outlet nozzles have limited strength and are unable to meet the demand for increasing the flow rate and pressure of the coolant to improve the heat dissipation effect of the water-cooled plate, and need to be improved. Utility Model Content

[0005] In order to improve the strength of the connecting pipe and thereby enhance the heat dissipation effect of the water-cooling plate, the present application provides an integrated connecting pipe and a water-cooling plate having the connecting pipe.

[0006] In the first aspect, the present application provides an integrated connecting pipe adopting the following technical solution:

[0007] An integrated connecting pipe includes a water inlet and a water outlet. The water inlet is connected to the water inlet of the water cooling plate and is used for cooling liquid to flow in. The water outlet is connected to the water outlet of the water cooling plate and is used for cooling liquid to flow out. The water inlet and the water outlet are designed as an integrated whole.

[0008] By adopting this technical solution, the water inlet and outlet are integrated into a single piece, providing greater structural strength compared to the split design of conventional connecting pipes. As the coolant flow rate and pressure increase, the connecting pipe is less likely to deform or even rupture due to the impact of the coolant, and exhibits a strong pressure drop capability. When this connecting pipe is used in a battery liquid cooling system, it effectively dissipates heat from the water cooling plate, helping to increase the actual battery charge and enhance battery life.

[0009] Optionally, the integrated connecting pipe further includes a connecting plate located on one side of the water inlet and the water outlet, and the connecting plate is fixedly connected to the water inlet and the water outlet.

[0010] By adopting this technical solution, when the connecting pipe needs to connect to other components in the battery liquid cooling system, the connecting plate can increase the connection area between the connecting pipe and other components, improving the connection stability. In addition, when the coolant impacts the connecting pipe, the connecting plate can extend the coolant flow path and increase the contact area between the connecting pipe and the coolant, thereby improving the connecting pipe's impact resistance and further enhancing the heat dissipation effect of the water-cooled plate.

[0011] Optionally, a positioning plate is vertically fixed on the connecting plate, and the positioning plate is fixedly connected to the water inlet and the water outlet.

[0012] By adopting the above-mentioned technical solution, the setting of the positioning plate can, on the one hand, increase the lateral strength and force-bearing area of ​​the connecting pipe, so that the connecting pipe is not easily deformed and broken when subjected to the lateral impact of the coolant, thereby further improving the impact resistance of the connecting pipe; on the other hand, it can also be used to connect other components of the battery liquid cooling system, thereby improving the stability of the connecting pipe applied to the battery liquid cooling system.

[0013] Optionally, a water inlet convex ring for connecting the water inlet nozzle and the water inlet of the water cooling plate, and a water outlet convex ring for connecting the water outlet nozzle and the water outlet of the water cooling plate are fixedly connected to the connecting plate. The outer diameter of the water inlet convex ring is smaller than the inner diameter of the water inlet on the water cooling plate, and the outer diameter of the water outlet convex ring is smaller than the inner diameter of the water outlet on the water cooling plate.

[0014] By adopting the above technical solution, when the connecting pipe is installed on the water-cooling plate, the water inlet cam is inserted into the water inlet of the water-cooling plate, and the water outlet cam is inserted into the water outlet of the water-cooling plate. The provision of the water inlet and water outlet cams not only assists in positioning the connecting pipe during installation, facilitating precise alignment of the water inlet nozzle with the water inlet of the water-cooling plate, and the water outlet nozzle with the water outlet of the water-cooling plate, but also hinders relative movement between the connecting pipe and the water-cooling plate, thereby enhancing the connection stability between the connecting pipe and the water-cooling plate and ensuring the stable flow of coolant.

[0015] Optionally, an extension ring is integrally formed on the water inlet convex ring and the water outlet convex ring, and the extension ring is fixedly connected to the inner wall of the water inlet nozzle or the water outlet nozzle.

[0016] By adopting the above technical solution, after the connecting pipe is connected to the water-cooling plate, the coolant flows into the water inlet of the water-cooling plate along the water inlet nozzle, the extension ring and the water inlet convex ring in sequence, and then flows out of the connecting pipe along the water outlet convex ring, the extension ring and the water outlet nozzle. The setting of the extension ring makes it difficult for the coolant to seep out along the gap between the connecting pipe and the water-cooling plate when flowing from the water inlet nozzle to the water inlet and from the water outlet to the water outlet nozzle, and the sealing performance is good.

[0017] Optionally, a connecting groove for one end of the water cooling plate to extend into is provided on the connecting plate.

[0018] By adopting the above technical solution, when installing the connecting pipe, one end of the water-cooling plate can be extended into the connecting groove of the connecting plate to achieve pre-positioning of the connecting pipe, so as to facilitate the subsequent joining and connection of the connecting pipe and the water-cooling plate, thereby simplifying the originally complicated riveting and joining processes, thereby improving production efficiency.

[0019] Optionally, a plurality of threaded holes are provided on the water inlet and / or the water outlet.

[0020] By adopting the above technical solution, when the connecting pipe is connected and fixed to the battery box, the threaded hole can be screwed into the connecting bolt, so that the connecting pipe can be fixedly installed on the battery box through the connecting bolt, with high connection strength and simple operation.

[0021] Optionally, the connecting plate is provided with a plurality of clearance grooves, and the bottom wall of each of the clearance grooves is provided with an assembly hole.

[0022] By adopting this technical solution, when the connecting tube needs to be connected to other components in the battery liquid cooling system, the assembly bolts can be inserted through the assembly holes and connected to the other components to achieve the installation and fixation of the connecting tube. The clearance groove protects the assembly bolt head, making it less susceptible to external forces and deformation due to exposure, and helps save space occupied by the exposed assembly bolt head.

[0023] In the second aspect, the present application provides a water cooling plate adopting the following technical solution:

[0024] A water-cooling plate comprises a base plate, on which the integrated connecting pipe as described in any one of the above items is provided.

[0025] By adopting the above technical solution, when the water-cooling plate is applied to the battery liquid cooling system, due to the improved strength of the connecting pipe, the coolant can be supplied to the water-cooling plate at a faster flow rate and pressure, and the heat dissipation effect of the water-cooling plate is good.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The connecting pipe is an integrated design with the advantage of higher strength, allowing the coolant to flow in at a higher flow rate and pressure, thereby improving the heat dissipation efficiency of the water-cooled plate;

[0028] 2. The connection groove allows one end of the water-cooling plate to be inserted, which helps to quickly position and assemble the connecting pipe and the water-cooling plate, thereby simplifying the assembly process of the two and improving production efficiency;

[0029] 3. The setting of threaded holes and assembly holes enables the connecting pipe to be connected to other components by bolt connection, with high connection strength and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the connecting pipe in an embodiment of the present application.

[0031] Figure 2 This is a structural schematic diagram of the connecting pipe from another perspective in an embodiment of the present application.

[0032] Figure 3 It is a schematic structural diagram of the water cooling plate in an embodiment of the present application.

[0033] Figure 4 It is a partial schematic diagram of the water cooling plate in the embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Connecting pipe; 11. Water inlet nozzle; 12. Water outlet nozzle; 13. Connecting plate; 131. Gap groove; 132. Assembly hole; 133. Water inlet convex ring; 134. Water outlet convex ring; 135. Connecting groove; 14. Threaded hole; 15. Positioning plate; 16. Extension ring; 17. Connecting arc surface; 2. Base plate. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The embodiments of the present application disclose an integrated connecting pipe and a water-cooling plate having the connecting pipe.

[0038] Reference Figure 1 The integrated connecting pipe includes an integrated water inlet nozzle 11, a water outlet nozzle 12, and a connecting plate 13, resulting in high structural strength and strong pressure resistance. In this embodiment, the connecting pipe 1 is preferably made of aluminum. During processing, the water inlet nozzle 11 and the water outlet nozzle 12 are formed from a single aluminum plate with two through-holes dug into it. One through-hole connects to the water inlet of the water cooling plate for coolant inflow, and the other through-hole connects to the water outlet of the water cooling plate for coolant outflow.

[0039] Reference Figure 1, a positioning plate 15 is provided on the side of the connecting plate 13 facing the water inlet nozzle 11 and the water outlet nozzle 12, and the positioning plate 15 is perpendicular to the connecting plate 13 and fixedly connected to the water inlet nozzle 11 and the water outlet nozzle 12. Specifically, the connecting plate 13, the positioning plate 15 and the water inlet nozzle 11 and the water outlet nozzle 12 in this embodiment are connected by brazing. The connecting plate 13 and the positioning plate 15 can increase the contact area when the connecting pipe 1 is connected to other components in the battery liquid cooling system, and improve the connection stability between the two. In addition, when the coolant flows in the water inlet nozzle 11 and the water outlet nozzle 12, the connecting plate 13 and the positioning plate 15 can increase the force-bearing area of ​​the connecting pipe 1, so that the connecting pipe 1 can withstand a greater impact force, thereby enabling the coolant to pass into the connecting pipe 1 at a higher flow rate, thereby improving the heat dissipation effect of the water-cooled plate.

[0040] Reference Figure 1 The transition areas between the water inlet nozzle 11, the water outlet nozzle 12, the connecting plate 13, and the positioning plate 15 are all provided with connecting arc surfaces 17. The connecting arc surfaces 17 increase the connection area between the various components in the connecting pipe 1, making the connection strength of the brazing connection higher, thereby making the strength of the entire connecting pipe 1 higher.

[0041] Reference Figure 1 and Figure 2 The connecting plate 13 is integrally formed with a water inlet convex ring 133 and a water outlet convex ring 134. The outer diameter of the water inlet convex ring 133 is smaller than the inner diameter of the water inlet on the water-cooling plate, and is used to connect the water inlet nozzle 11 with the water inlet on the water-cooling plate; the outer diameter of the water outlet convex ring 134 is smaller than the inner diameter of the water outlet on the water-cooling plate, and is used to connect the water outlet nozzle 12 with the water outlet on the water-cooling plate. An extension ring 16 is integrally formed on both the water inlet convex ring 133 and the water outlet convex ring 134, wherein the extension ring 16 on the water inlet convex ring 133 is fixed to the inner wall of the water inlet nozzle 11, and the extension ring 16 on the water outlet convex ring 134 is fixedly connected to the inner wall of the water outlet nozzle 12. The above-mentioned extension ring 16 can be connected to the water inlet nozzle 11 and the water outlet nozzle 12 by either brazing or integral molding.

[0042] When installing the connecting pipe 1 on the water-cooling plate, simply extend the water inlet protrusion 133 into the water inlet and the water outlet protrusion 134 into the water outlet. The provision of the water inlet protrusion 133 and the water outlet protrusion 134 facilitates the positioning of the connecting pipe 1 and improves the stability of the connection between the connecting pipe 1 and the water-cooling plate. The extension ring 16 prevents coolant from leaking through the gap between the connecting pipe 1 and the water-cooling plate when flowing through the water inlet nozzle 11 and the water outlet nozzle 12, thus achieving a good sealing effect.

[0043] Reference Figure 2A connecting groove 135 is provided on the connecting plate 13 for one end of the water cooling plate to extend into. During production, one end of the water cooling plate can be set to adapt to the shape of the connecting groove 135. After the connecting plate 13 and the water cooling plate are assembled and pre-positioned through the water inlet convex ring 133 and the water outlet convex ring 134, the connecting plate 13 can be directly joined to the water cooling plate by extending one end of the water cooling plate into the connecting groove 135, thereby simplifying the originally complicated riveting and joining processes and improving production efficiency.

[0044] Reference Figure 1 The water inlet nozzle 11 and the water outlet nozzle 12 are each provided with a plurality of threaded holes 14. In this embodiment, the total number of threaded holes 14 is preferably four. In other embodiments, threaded holes 14 may be provided only on the water inlet nozzle 11, or only on the water outlet nozzle 12. To secure the connecting pipe 1 to the battery box, simply insert the connecting bolts through the threaded holes 14 and mate with the battery box bolts, which is simple to operate.

[0045] Reference Figure 1 The sidewall of the connecting plate 13, away from the connecting groove 135, is provided with a plurality of relief grooves 131, preferably three in this embodiment. Each relief groove 131 has an assembly hole 132 on its bottom wall. When connecting the connecting plate 13 to other components in the battery liquid cooling system, simply insert the assembly bolts through the assembly holes 132 to connect the connecting plate 13 to the other components. This provides simple operation and high connection stability. The relief grooves 131 protect the assembly bolt heads and help save space that would otherwise be occupied by the exposed assembly bolt heads.

[0046] Reference Figure 3 and Figure 4 The present application also discloses a water-cooling plate, comprising a base plate 2 on which the aforementioned integrated connecting tube 1 is disposed. One end of the base plate 2 matches the shape of the connecting groove 135, and the thickness of the base plate 2 is equal to the depth of the connecting groove 135. With this arrangement, after one end of the base plate 2 extends into the connecting groove 135, the sides of the water-cooling plate and the connecting plate 13 become flush because the thickness of the base plate 2 is equal to the depth of the connecting groove 135.

[0047] The implementation principle of an integrated connecting pipe and a water-cooling plate having the connecting pipe in an embodiment of the present application is as follows: since the water inlet nozzle 11 and the water outlet nozzle 12 are designed as an integrated whole, compared with the traditional split design, the water-cooling plate can withstand the flow of coolant at a higher flow rate, thereby improving the heat dissipation performance of the water-cooling plate and the overall performance of the battery liquid cooling system.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An integrated connecting pipe, comprising a water inlet (11) and a water outlet (12), wherein the water inlet (11) is connected to the water inlet of the water cooling plate and is used for cooling liquid to flow in, and the water outlet (12) is connected to the water outlet of the water cooling plate and is used for cooling liquid to flow out, characterized in that: The water inlet (11) and the water outlet (12) are of integrated design.

2. The integrated connecting pipe according to claim 1, characterized in that: It also includes a connecting plate (13) located on one side of the water inlet (11) and the water outlet (12), wherein the connecting plate (13) is fixedly connected to the water inlet (11) and the water outlet (12).

3. The integrated connecting pipe according to claim 2, characterized in that: A positioning plate (15) is vertically fixed on the connecting plate (13), and the positioning plate (15) is fixedly connected to the water inlet nozzle (11) and the water outlet nozzle (12).

4. The integrated connecting pipe according to claim 2, characterized in that: A water inlet convex ring (133) for connecting the water inlet nozzle (11) and the water inlet on the water cooling plate, and a water outlet convex ring (134) for connecting the water outlet nozzle (12) and the water outlet on the water cooling plate are fixedly connected to the connecting plate (13); the outer diameter of the water inlet convex ring (133) is smaller than the inner diameter of the water inlet on the water cooling plate, and the outer diameter of the water outlet convex ring (134) is smaller than the inner diameter of the water outlet on the water cooling plate.

5. The integrated connecting pipe according to claim 4, characterized in that: An extension ring (16) is integrally formed on the water inlet convex ring (133) and the water outlet convex ring (134), and the extension ring (16) is fixedly connected to the inner wall of the water inlet nozzle (11) or the water outlet nozzle (12).

6. The integrated connecting pipe according to claim 2, characterized in that: The connecting plate (13) is provided with a connecting groove (135) for one end of the water cooling plate to extend into.

7. The integrated connecting pipe according to claim 1, characterized in that: The water inlet nozzle (11) and / or the water outlet nozzle (12) are provided with a plurality of threaded holes (14).

8. The integrated connecting pipe according to claim 2, characterized in that: The connecting plate (13) is provided with a plurality of paving grooves (131), and a bottom wall of each paving groove (131) is provided with an assembly hole (132).

9. A water-cooling plate, comprising a base plate (2), characterized in that: The base plate (2) is provided with an integrated connecting pipe (1) according to any one of claims 1 to 8.

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