Quick-change connector assembly, cooling system and electric equipment

Abstract

The utility model relates to the technical field of power batteries, and particularly provides a quick-change connector assembly, a cooling system and electric equipment. The quick-change connector assembly comprises a quick-change connector and a connecting pipeline, the quick-change connector comprises a base plate and matched pipes arranged on the two opposite sides of the base plate, the connecting pipeline comprises a corrugated pipe and a quick-plug connector connected with the cold plate, and the corrugated pipe comprises a first connecting section, a second connecting section and a corrugated section connecting the first connecting section and the second connecting section. The first connecting section is connected with the piping, the second connecting section is connected with the quick connector, and the corrugated section is longer than the first connecting section and / or the second connecting section. The installation efficiency can be improved, the assembly tolerance absorption capacity is improved, the number of parts is reduced, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and specifically provides a quick-change connector assembly, a cooling system and electrical equipment. Background Art

[0002] With the development of society, in order to reduce the pollution of automobile exhaust to the atmosphere, new energy vehicles such as lithium batteries have been vigorously promoted. As the power source of new energy vehicles, on-board batteries will dissipate a lot of heat when working. Usually, a set of special water cooling pipes are used in the battery pack to control the temperature of the battery. As the external requirements for the power and mileage of new energy vehicles are getting higher and higher, the volume of battery modules is also getting larger and larger, which makes the layout conditions of water cooling pipes higher. The traditional quick-connect connector is connected to the water quick-change assembly. It is necessary to connect the quick-connect connector to the water quick-change assembly first, and then connect the water cooling pipe to the quick-connect connector. Not only is the assembly and inspection time long, but there is also a risk of liquid leakage. The space at the installation of the water quick-change assembly and the liquid cooling plate is small, and the quick-connect connector occupies a certain volume, resulting in the short size of the bellows, which limits the bending of the water cooling pipe, is not conducive to absorbing the assembly tolerance, and is not conducive to the setting of the water cooling pipe and the installation of the water quick-change assembly. The installation efficiency is low and it is easy to cause liquid leakage or damage to the water cooling pipe and the joint.

[0003] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the above technical problems and provide a novel quick-change joint assembly which can improve installation efficiency, improve the ability to absorb assembly tolerances, reduce the number of parts and save costs.

[0005] The utility model provides a quick-change joint assembly, comprising:

[0006] A quick-change connector, the quick-change connector comprising a base plate and pipes arranged on opposite sides of the base plate;

[0007] A connecting pipeline, the connecting pipeline comprising a bellows and a quick-connect connector connected to the cold plate, the bellows comprising a first connecting section, a second connecting section and a corrugated section connecting the first connecting section and the second connecting section;

[0008] Wherein, the first connecting section is connected to the pipe, the second connecting section is connected to the quick-connect connector, and the length of the corrugated section is greater than the length of the first connecting section and / or the length of the second connecting section.

[0009] When the above technical solution is adopted, the first connecting section of the utility model is connected to the piping, and the intermediate adapter joint is eliminated, which not only reduces the number of parts and saves costs, but also increases the length of the corrugated section while keeping the positions of the quick-insert connector and the quick-change connector unchanged. As a result, the bellows has a greater bending possibility, which is beneficial to improving the installation efficiency and reducing the risk of failure at the connection, thereby improving the reliability of the quick-change connector assembly. The length of the corrugated section is greater than the length of the first connecting section and / or the length of the second connecting section, so that the length of the corrugated section is longer, which not only can achieve good bending but also a larger bending angle, thereby improving the ability to absorb tolerances during assembly.

[0010] In the preferred technical solution of the above quick-change connector assembly, the ratio of the length of the corrugated section to the length of the bellows is 0.4 to 0.6.

[0011] When the above technical solution is adopted, the length of the corrugated section accounts for a large proportion of the length of the bellows, which means that except for the first connecting section and the second connecting section that cooperate with the piping and the quick-connect connector, the other parts of the bellows are bendable corrugated sections, which can achieve better bending.

[0012] In a preferred technical solution of the above quick-change connector assembly, the ratio of the length of the corrugated section to the length of the first connecting section and / or the length of the second connecting section is 1.1 to 3.

[0013] When adopting the above technical solution, the ratio of the length of the corrugated section to the length of the first connecting section and / or the length of the second connecting section is between 1.1 and 3. While satisfying that the length of the corrugated section is greater than the length of the first connecting section and / or the length of the second connecting section, the ratio of the length of the corrugated section to the length of the first connecting section and / or the length of the second connecting section is appropriate, and the length of the corrugated section is not too long, thereby maximizing space saving. In addition, it can also maximize cost savings.

[0014] In a preferred technical solution of the above quick-change connector assembly, the ratio of the length of the corrugated section to the length of the first connecting section and / or the length of the second connecting section is 1.3 to 2.4.

[0015] When adopting the above technical solution, the ratio of the length of the corrugated section to the length of the first connecting section and / or the length of the second connecting section is set between 1.3 and 2.4. While ensuring that the corrugated section can achieve better bending and improve the tolerance absorption capacity, the length of the bellows is reduced as much as possible, thereby reducing the length of the entire connecting pipeline, maximizing the energy density of the battery pack, and saving costs while meeting functional requirements.

[0016] In a preferred technical solution of the above-mentioned quick-change connector assembly, a horizontal projection length of the corrugated section is greater than a horizontal projection length of the first connecting section and / or a horizontal projection length of the second connecting section.

[0017] When adopting the above technical solution, during the connection process of the bellows, the corrugated section may be bent in the vertical direction or in the horizontal direction, and the horizontal projection length of the corrugated section is greater than the horizontal projection length of the first connecting section and / or the horizontal projection length of the second connecting section. The horizontal space can be reasonably utilized to meet the position arrangement requirements of the cold plate interface and the quick-change connector, and the vertical height can be reduced, thereby reducing the overall volume of the battery pack and thereby improving the energy density of the battery pack.

[0018] In a preferred technical solution of the above quick-change connector assembly, the first connecting section and the second connecting section are arranged at an obtuse angle in the horizontal projection direction.

[0019] When the above technical solution is adopted, the first connecting section is connected to the piping, the second connecting section is connected to the quick-change connector, the liquid in the quick-change connector enters the second connecting section through the first connecting section, or the liquid in the cold plate enters the first connecting section through the second connecting section. The setting of the obtuse angle can maximize the reduction of flow resistance and thereby improve the heat exchange efficiency.

[0020] In the preferred technical solution of the above-mentioned quick-change connector assembly, the corrugated section includes a first corrugated section, a second corrugated section and a bending section, the bending section connects the first corrugated section and the second corrugated section, the first corrugated section is connected to the first connecting section, and the second corrugated section is connected to the second connecting section.

[0021] When the above technical solution is adopted, when the corrugated tube is bent, the first connecting section and the second connecting section remain unchanged, the corrugated section is bent, and the first corrugated section is connected to the first connecting section to achieve a slight bend, and the second corrugated section is connected to the second connecting section to achieve a slight bend. The bending angle of the bending section in the horizontal direction and / or the vertical direction is large. With this arrangement, there will be no incomplete bending, thereby ensuring the reliability of the connection between the first corrugated section and the first connecting section and the connection between the second corrugated section and the second connecting section.

[0022] In the preferred technical solution of the above quick-change connector assembly, the first corrugated section and the second corrugated section are arranged at an obtuse angle in the horizontal projection direction.

[0023] When adopting the above technical solution, the first corrugated section is connected to the first connecting section, and the second corrugated section is connected to the second connecting section. The first connecting section is connected to the pipe, and the second connecting section is connected to the quick-connect connector. As a path for the circulation of cooling liquid, the first corrugated section and the second corrugated section are arranged at an obtuse angle in the horizontal projection direction, which can reduce flow resistance and thereby improve heat exchange efficiency.

[0024] In a second aspect, the utility model provides a cooling system, comprising the quick-change connector assembly described in the first aspect.

[0025] In a third aspect, the utility model provides an electrical device, comprising the cooling system described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0027] Figure 1 It is a structural schematic diagram of the quick-change joint assembly of the utility model;

[0028] Figure 2 It is a top view of the quick-change connector assembly of the utility model.

[0029] Reference numerals:

[0030] 1. Quick-change connector; 10. Base plate; 11. Plug-in tube; 12. Pipe;

[0031] 2. bellows; 21. first connecting section; 22. bellows section; 221. first bellows section; 222. bending section; 223. second bellows section; 23. second connecting section;

[0032] 3. Quick-connect connector;

[0033] L, the length of the bellows; L1, the length of the corrugated section; L2, the length of the first connecting section; L3, the length of the second connecting section;

[0034] l, horizontal projection length of the bellows; l1, horizontal projection length of the bellows section; l2, horizontal projection length of the first connecting section; l3, horizontal projection length of the second connecting section. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0036] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connection", "setting" and "installation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1 to Figure 2 As shown, in the first aspect, the quick-change connector assembly of the utility model includes a quick-change connector 1 and a connecting pipeline, the quick-change connector 1 includes a base plate 10 and a pipe 12 arranged on opposite sides of the base plate 10, the connecting pipeline includes a bellows 2 and a quick-plug connector 3 connected to the cold plate, the bellows 2 includes a first connecting section 21, a second connecting section 23 and a corrugated section 22 connecting the first connecting section 21 and the second connecting section 23, wherein the first connecting section 21 is connected to the pipe 12, the second connecting section 23 is connected to the quick-plug connector 3, and the length L1 of the corrugated section is greater than the length L2 of the first connecting section and / or the length L3 of the second connecting section. The quick-change connector 1 also includes a plug-in tube 11 arranged on the first side of the base plate 10, and the pipe 12 is arranged on the second side of the base plate 10. In this embodiment, the plug-in tube 11 is plugged and matched with the vehicle-end quick-change connector assembly in the vertical direction, and the pipe 12 is located on the opposite side of the plug-in tube 11 in the vertical direction. The pipes 12 are arranged in a direction away from each other in the horizontal direction, and the insertion direction of the plug-in tube 11 is perpendicular to the extending direction of the pipes 12 .

[0039] The first connecting section 21 of the utility model is connected to the piping 12, and the intermediate adapter joint is eliminated, which not only reduces the number of parts and saves costs, but also increases the length of the corrugated section 22 while keeping the positions of the quick-insert connector 3 and the quick-change connector 1 unchanged, so that the bellows 2 has a greater bending possibility, which is beneficial to improving the installation efficiency and reducing the risk of failure at the connection, thereby improving the reliability of the quick-change connector 1. The length L1 of the corrugated section is greater than the length L2 of the first connecting section and / or the length L3 of the second connecting section, so that the length L1 of the corrugated section is longer, which not only can achieve good bending but also a larger bending angle, thereby improving the ability to absorb tolerance during assembly.

[0040] like Figure 1 and Figure 2 As shown, the length L1 of the corrugated section accounts for a ratio of 0.4 to 0.6 of the length L of the bellows. In the present embodiment, the length L1 of the corrugated section accounts for a ratio of 0.54 to the length L of the bellows. Of course, it can also be 0.4, 0.41, 0.42, 0.43, 0.44, 0.45, 0.46, 0.47, 0.48, 0.49, 0.5, 0.51, 0.52, 0.53, 0.54, 0.55, 0.56, 0.57, 0.58, 0.59, 0.6. The length L1 of the corrugated section accounts for a large ratio of the length L of the bellows. This makes it possible for the bellows 2, except for the first connecting section 21 and the second connecting section 23 that cooperate with the pipe 12 and the quick connector 3, to have other parts that are bendable corrugated sections 22, so that better bending can be achieved.

[0041] The ratio of the length L1 of the corrugated section to the length L2 of the first connecting section and / or the length L3 of the second connecting section is 1.1 to 3. In the present embodiment, the length L2 of the first connecting section and the length L3 of the second connecting section are equal. Of course, in other embodiments, the length L2 of the first connecting section and the length L3 of the second connecting section may also be unequal. While satisfying that the length L1 of the corrugated section is greater than the length L2 of the first connecting section and / or the length L3 of the second connecting section, the ratio of the length L1 of the corrugated section to the length L2 of the first connecting section and / or the length L3 of the second connecting section is appropriate, and the length L1 of the corrugated section is not too long, thereby maximizing space saving. In addition, cost saving can also be maximized. The ratio of the length L1 of the corrugated section to the length L2 of the first connecting section and / or the length L3 of the second connecting section is preferably 1.3 to 2.4. Of course, the ratio of the length L1 of the corrugated section to the length L2 of the first connecting section and / or the length L3 of the second connecting section can be 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4. In the present embodiment, the preferred ratio is 1.34. While ensuring that the corrugated section 22 can achieve better bending and improve the tolerance absorption capacity, the length of the bellows 2 is reduced as much as possible, thereby reducing the length of the entire connecting pipeline, thereby maximizing the energy density of the battery pack and saving costs while meeting functional requirements.

[0042] like Figure 1As shown, the horizontal projection length l of the bellows is the sum of the horizontal projection length l1 of the corrugated section, the horizontal projection length l2 of the first connecting section and the horizontal projection length l3 of the second connecting section. The horizontal projection length l1 of the corrugated section is greater than the horizontal projection length l2 of the first connecting section and / or the horizontal projection length l3 of the second connecting section. During the connection of the bellows 2, the corrugated section 22 may be bent in the vertical direction or in the horizontal direction, and the horizontal projection length l1 of the corrugated section is greater than the horizontal projection length l2 of the first connecting section and / or the horizontal projection length l3 of the second connecting section. In this way, the horizontal space can be reasonably utilized to meet the position arrangement requirements of the cold plate interface and the quick-change connector 1, and the vertical height can be reduced, the overall volume of the battery pack can be reduced, and the energy density of the battery pack can be improved. The first connection section 21 and the second connection section 23 are set at an obtuse angle in the horizontal projection direction. The first connection section 21 is connected to the pipe 12, and the second connection section 23 is connected to the quick-change connector 3. The liquid in the quick-change connector 1 enters the second connection section 23 through the first connection section 21, or the liquid in the cold plate enters the first connection section 21 through the second connection section 23. The setting of this obtuse angle can maximize the reduction of flow resistance, thereby improving heat exchange efficiency.

[0043] like Figure 1 to Figure 2 As shown, the corrugated section 22 includes a first corrugated section 221, a second corrugated section 223 and a bending section 222. The bending section 222 connects the first corrugated section 221 and the second corrugated section 223. The first corrugated section 221 is connected to the first connecting section 21, and the second corrugated section 223 is connected to the second connecting section 23. When the corrugated tube 2 is bent, the first connecting section 21 and the second connecting section 23 are respectively sleeved with the pipe 12 and the quick-connect connector 3, and the corrugated section 22 is bent. The first corrugated section 221 is connected to the first connecting section 21 to achieve a slight bending, and the second corrugated section 223 is connected to the second connecting section 23 to achieve a slight bending. The bending angle of the bending section 222 in the horizontal direction and / or the vertical direction is large. With this arrangement, there will be no incomplete bending, thereby ensuring the reliability of the connection between the first corrugated section 221 and the first connecting section 21, and the connection between the second corrugated section 223 and the second connecting section 23.

[0044] The first corrugated section 221 and the second corrugated section 223 are arranged at an obtuse angle in the horizontal projection direction. The first corrugated section 221 is connected to the first connecting section 21, and the first connecting section 21 is connected to the pipe 12. The second corrugated section 223 is connected to the second connecting section 23, and the second connecting section 23 is connected to the quick-connect connector 3. As a path for the circulation of cooling liquid, the first corrugated section 221 and the second corrugated section 223 are arranged at an obtuse angle in the horizontal projection direction, which can reduce flow resistance and thus improve heat exchange efficiency.

[0045] In the second aspect, the cooling system of the utility model includes the quick-change joint assembly of the first aspect. The cooling system of this technical solution includes the quick-change joint assembly of any technical solution of the utility model, and thus has all the technical effects of the quick-change joint assembly of any technical solution of the utility model.

[0046] In the third aspect, the electrical equipment of the present invention includes the cooling system of the second aspect. The electrical equipment of this technical solution includes the cooling system of any technical solution of the present invention, and thus has all the technical effects of the cooling system of any technical solution of the present invention.

[0047] It should be noted that the above preferred implementations are only used to illustrate the principle of the utility model and are not intended to limit the protection scope of the utility model. Without departing from the principle of the utility model, those skilled in the art may adjust the above settings so that the utility model can be applied to more specific application scenarios.

[0048] Of course, the above-mentioned replaceable implementations, as well as the replaceable implementations and the preferred implementations, can be used in a cross-coordinated manner to combine new implementations to suit more specific application scenarios.

[0049] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A quick-change joint assembly, characterized in that: include: A quick-change connector, the quick-change connector comprising a base plate and pipes arranged on opposite sides of the base plate; A connecting pipeline, the connecting pipeline comprising a bellows and a quick-connect connector connected to the cold plate, the bellows comprising a first connecting section, a second connecting section and a corrugated section connecting the first connecting section and the second connecting section; Wherein, the first connecting section is connected to the pipe, the second connecting section is connected to the quick-connect connector, and the length of the corrugated section is greater than the length of the first connecting section and / or the length of the second connecting section.

2. The quick-change connector assembly according to claim 1, characterized in that: The ratio of the length of the corrugated section to the length of the corrugated tube is 0.4 to 0.

6.

3. The quick-change connector assembly according to claim 1, characterized in that: A ratio of the length of the corrugated section to the length of the first connecting section and / or the length of the second connecting section is 1.1 to 3.

4. The quick-change connector assembly according to claim 3, characterized in that: A ratio of the length of the corrugated section to the length of the first connecting section and / or the length of the second connecting section is 1.3 to 2.

4.

5. The quick-change connector assembly according to claim 1, characterized in that: The horizontal projection length of the corrugated segment is greater than the horizontal projection length of the first connecting segment and / or the horizontal projection length of the second connecting segment.

6. The quick-change connector assembly according to claim 1, characterized in that: The first connecting section and the second connecting section are arranged at an obtuse angle in a horizontal projection direction.

7. The quick-change connector assembly according to claim 1, characterized in that: The corrugated segment includes a first corrugated segment, a second corrugated segment and a bending segment, the bending segment connects the first corrugated segment and the second corrugated segment, the first corrugated segment is connected to the first connecting segment, and the second corrugated segment is connected to the second connecting segment.

8. The quick-change connector assembly according to claim 7, characterized in that: The first corrugated segment and the second corrugated segment are arranged at an obtuse angle in a horizontal projection direction.

9. A cooling system, characterized in that: It comprises a quick-change connector assembly as described in any one of claims 1 to 8.

10. An electrical device, characterized in that: Comprising the cooling system of claim 9.

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