Connector assembly, cooling system and electric equipment

Abstract

The utility model relates to the technical field of power batteries, in particular to a connector assembly which is connected with a liquid cooling plate and comprises a pipe and a connector, the pipe comprises a pipe body and a sleeve connected with the pipe body, the connector comprises a main body part, an insertion piece arranged on the first side of the main body part and a connecting pipe arranged on the second side of the main body part, and the insertion piece is connected with the connecting pipe. The sleeve and the pipe body define a containing cavity, the inserting piece is contained in the containing cavity and matched with the sleeve in a clamped mode, and a floating space is formed between the inserting piece and the sleeve in the axial direction of the sleeve. The connector assembly can reduce flow resistance, cost and weight.

Description

Technical Field

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

[0002] With the development of society, new energy vehicles (NEVs) such as lithium-ion batteries are being vigorously promoted to reduce atmospheric pollution from vehicle exhaust. As the onboard batteries powering these vehicles, they dissipate significant amounts of heat during operation. This requires a dedicated water cooling system within the battery pack to control the battery temperature. As demands for power and range for NEVs continue to rise, battery modules are becoming larger, increasing the requirements for the layout of the water cooling systems. Conventional battery pack cooling systems typically consist of three main components: a water quick-change unit, water pipes, and a cold plate. The water quick-change unit, serving as the interface between the battery pack and the vehicle, has a wide tolerance tolerance. The cold plate, as a component directly cooling the battery cells, has a cooling efficiency that directly impacts the cooling effect. The water pipes, connecting the water quick-change unit to the cold plate, primarily absorb tolerances between the two and cannot directly cool the battery cells. Consequently, the water pipes fail to contribute to the thermal management system, increasing the pressure drop within the cooling system and hindering cooling efficiency. This increases cost and the weight of the battery pack.

[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 new type of joint assembly which can reduce flow resistance, lower costs and lighten weight.

[0005] The utility model provides a joint assembly for connecting with a liquid cooling plate, comprising:

[0006] A pipe, the pipe comprising a pipe body and a sleeve connected to the pipe body;

[0007] A connector comprising a main body, an insert provided on a first side of the main body, and a connecting pipe provided on a second side of the main body;

[0008] The sleeve and the tube body are surrounded to form a receiving cavity, the insert is accommodated in the receiving cavity, the insert is clamped and fitted with the sleeve, and a floating space is provided between the insert and the sleeve in the axial direction of the sleeve.

[0009] When employing the above-described technical solution, the connector assembly of the present invention is directly connected to the liquid cooling plate, eliminating the need for water pipes and quick-connect fittings. This reduces costs and reduces the weight of the connector assembly. Furthermore, the reduced flow resistance from eliminating the water pipes and quick-connect fittings is distributed to the liquid cooling plate, improving the cooling efficiency of the thermal management system. The connector and piping are secured together by an insert and sleeve. After assembly, a floating space exists between the insert and sleeve in the axial direction of the sleeve, absorbing vertical assembly tolerances between the connector assembly and the liquid cooling plate, preventing assembly stress between the two, and improving reliability.

[0010] In a preferred technical solution of the above-mentioned joint assembly, one of the insert and the sleeve is provided with a clamping portion, and the other is provided with a clamping groove, and the clamping portion is clamped in the clamping groove.

[0011] When the above technical solution is adopted, the clamping cooperation between the insert and the sleeve makes the assembly and disassembly between the joint and the pipe convenient and the connection reliable.

[0012] In a preferred technical solution of the above-mentioned connector assembly, the insert includes a body, the holding portion is provided on the outside of the body, the sleeve includes a base, the holding groove is provided on the base, and the holding portion cooperates with the holding groove.

[0013] When the above technical solution is adopted, the cooperation between the holding portion of the insert and the holding groove of the sleeve is not only convenient for assembly and simple in structure, but also convenient for molding the holding portion and the holding groove, and low in manufacturing cost.

[0014] In the preferred technical solution of the above-mentioned joint assembly, there are multiple clamping parts and clamping grooves, the clamping parts are evenly distributed along the circumference of the body, the clamping grooves are evenly distributed along the circumference of the base, and the clamping parts and the clamping grooves are arranged at corresponding positions.

[0015] When the above technical solution is adopted, the clamping parts are evenly distributed along the circumference of the main body, and the clamping grooves are evenly distributed along the circumference of the base body. The setting positions of the clamping parts and the clamping grooves correspond to each other, so that the clamping parts and the clamping grooves are evenly stressed during circumferential assembly and are not easily damaged.

[0016] In the preferred technical solution of the above-mentioned joint assembly, the inner wall of the sleeve and the outer wall of the tube body are arranged to form the accommodating cavity, a first wall connecting the inner wall of the sleeve and the outer wall of the tube body is provided between the inner wall of the sleeve and the outer wall of the tube body, a second wall is provided on the side of the insert facing the sleeve, and a predetermined distance is provided between the first wall and the second wall.

[0017] When the above technical solution is adopted, there is a tolerance between the joint assembly and the liquid cooling plate, and the piping is directly welded to the liquid cooling plate. When the joint and the piping are assembled, the assembly tolerance in the vertical direction can be absorbed due to the predetermined distance between the first wall and the second wall.

[0018] In a preferred technical solution of the above-mentioned joint assembly, the insert is provided between the tube body and the sleeve, and sealing rings are provided between the insert, the tube body and the sleeve.

[0019] When the above technical solution is adopted, a sealing ring is provided between the insert and the tube body, and a sealing ring is also provided between the insert and the sleeve. The insert is inserted into the receiving cavity to ensure that there is no liquid leakage between the insert and the inner wall of the sleeve and the outer wall of the tube body. Sealing rings are provided on both sides of the insert to ensure the sealing effect.

[0020] In a preferred technical solution of the above-mentioned joint assembly, the sleeve is arranged on the outside of the tube body in the radial direction, and the insert is sleeved on the outside of the tube body in the radial direction.

[0021] When the above technical solution is adopted, the sleeve is arranged on the outside of the tube body, and the insert is arranged on the outside of the tube body and on the inside of the sleeve, which is convenient for plug-in assembly. At the same time, the tube body also serves to guide the insert, making it easy to install and match.

[0022] In a preferred technical solution of the above-mentioned joint assembly, the insert and the connecting pipe are both hollow and connected, and a valve core assembly capable of opening and closing the joint is provided in the insert and / or the connecting pipe.

[0023] When the above technical solution is adopted, a valve core assembly is provided in the joint to realize the connection and disconnection of the joint. After the joint is assembled to the pipe, liquid can flow between the joint and the liquid cooling plate.

[0024] In a second aspect, the present invention provides a cooling system, comprising the joint assembly described in the first aspect.

[0025] In a third aspect, the present invention 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 with reference to the accompanying drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of the joint assembly of the utility model installed on the liquid cooling plate;

[0028] Figure 2 It is an exploded schematic diagram of the connector assembly of the present invention;

[0029] Figure 3It is a structural diagram of the piping of the present utility model;

[0030] Figure 4 It is a cross-sectional view of the connector assembly of the present invention.

[0031] Reference numerals:

[0032] 1. Pipe; 10. Pipe body; 101. Outer wall; 11. Sleeve; 110. Base; 111. Holding groove; 112. Receiving cavity; 113. Floating space; 114. Cavity; 115. Inner wall; 116. First wall;

[0033] 2. Connector; 20. Main body; 21. Insert; 210. Body; 211. Clamping portion; 212. Second wall; 22. Connecting pipe; 23. Valve core assembly;

[0034] 3. Liquid cooling plate. DETAILED DESCRIPTION

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

[0036] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," "back," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "connect," "dispose," and "install" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0038] like Figures 1 to 4As shown, in the first aspect, the connector assembly of the present invention includes a pipe 1 and a connector 2. The pipe 1 includes a pipe body 10 and a sleeve 11 connected to the pipe body 10. The connector 2 includes a main body 20, an insert 21 provided on a first side of the main body 20, and a connecting pipe 22 provided on a second side of the main body 20. The sleeve 11 and the pipe body 10 enclose a receiving cavity 112, and the insert 21 is accommodated in the receiving cavity 112. The insert 21 and the sleeve 11 are engaged with each other in a clamping manner, and a floating space 113 is defined between the insert 21 and the sleeve 11 in the axial direction of the sleeve 11. The connector assembly is directly welded to the liquid cooling plate 3, and the connector 2 is engaged with the battery pack housing.

[0039] The connector assembly of this utility model directly connects to the liquid cooling plate 3, eliminating the need for water pipes and quick-connect fittings. This reduces costs and weight of the connector assembly. Furthermore, the reduced flow resistance from eliminating the water pipes and quick-connect fittings is distributed to the liquid cooling plate 3, improving the cooling efficiency of the thermal management system. The connector 2 and the pipe 1 are secured together by an insert 21 and a sleeve 11. After assembly, a floating space 113 is created between the insert 21 and the sleeve 11 in the axial direction. This space accommodates vertical assembly tolerances between the connector assembly and the liquid cooling plate 3, preventing assembly stress between the two and improving reliability.

[0040] like Figures 2 to 4 As shown, the insert 21, connecting tube 22, and sleeve 11 are coaxial. One of the insert 21 and sleeve 11 has a retaining portion 211, and the other has a retaining groove 111. The retaining portion 211 is retained in the retaining groove 111. The retaining engagement between the insert 21 and sleeve 11 facilitates assembly and disassembly between the connector 2 and the pipe 1, and ensures a reliable connection. The insert 21 includes a body 210, with the retaining portion 211 disposed on the outside of the body 210. The sleeve 11 includes a base 110, with the retaining groove 111 disposed therein, and the retaining portion 211 engages with the retaining groove 111. The retaining portion 211 of the insert 21 cooperates with the retaining groove 111 of the sleeve 11. The retaining portion 211 is retained within the retaining groove 111, is circumferentially limited, and is restricted from upward movement in the axial direction. This not only facilitates assembly and has a simple structure, but also facilitates molding of the retaining portion 211 and the retaining groove 111, resulting in low manufacturing costs. There are multiple retaining portions 211 and retaining grooves 111. In this embodiment, there are four retaining portions 211 and four retaining grooves 111. The retaining portions 211 are evenly distributed along the circumference of the body 210, and the retaining grooves 111 are evenly distributed along the circumference of the base 110. The retaining portions 211 and retaining grooves 111 are positioned in a corresponding manner. The corresponding positions of the retaining portions 211 and retaining grooves 111 ensure that the retaining portions 211 and retaining grooves 111 are evenly stressed during circumferential assembly and are not easily damaged.

[0041] Reference Figures 2 to 3The inner wall 115 of the sleeve 11 and the outer wall 101 of the tube body 10 form a receiving cavity 112. The diameter of the sleeve 11 is larger than the diameter of the tube body 10. A first wall 116 connecting the inner wall 115 of the sleeve 11 and the outer wall 101 of the tube body 10 is provided between the inner wall 115 of the sleeve 11 and the outer wall 101 of the tube body 10. A second wall 212 is provided on the side of the insert 21 facing the sleeve 11. A predetermined distance is provided between the first wall 116 and the second wall 212. There is a tolerance between the joint assembly and the liquid cooling plate 3. The piping 1 is directly welded to the liquid cooling plate 3. When the joint 2 and the piping 1 are assembled, the predetermined distance between the first wall 116 and the second wall 212 can absorb the assembly tolerance in the vertical direction. Taking into account the tolerance value in the vertical direction, in this embodiment, the range of the predetermined distance is 2mm to 6mm, which can be 2mm, 3mm, 4mm, 5mm, 6mm, and preferably 4mm, so as not to make the distance between the first wall and the second wall too large or too small, and can better absorb the assembly tolerance in the vertical direction.

[0042] Reference Figure 4 The insert 21 is provided between the tube body 10 and the sleeve 11, and sealing rings are provided between the insert 21, the tube body 10, and the sleeve 11. A sealing ring is provided between the insert 21 and the tube body 10, and a sealing ring is also provided between the insert 21 and the sleeve 11. The insert 21 is inserted into the receiving cavity 112 to ensure that there is no liquid leakage between the insert 21 and the inner wall 116 of the sleeve 11 and the outer wall 101 of the tube body 10. Sealing rings are provided on both sides of the insert 21 to ensure the sealing effect. The sleeve 11 is provided on the outer side of the tube body 10 in the radial direction, and the insert 21 is sleeved on the outer side of the tube body 10 in the radial direction. The sleeve 11 is provided on the outer side of the tube body 10, and the insert 21 is provided on the outer side of the tube body 10 and on the inner side of the sleeve 11, which is convenient for plug-in assembly. At the same time, the tube body 10 also serves to guide the insert 21, making it easy to install and match. The valve core assembly 23 includes a fixed portion fixed to the main body, a valve core that can move back and forth, and a spring sleeved on the outside of the valve core. The valve core realizes reciprocating motion inside the joint through the spring.

[0043] In a second aspect, the cooling system of the present invention includes the joint assembly of the first aspect. The cooling system of this technical solution includes the joint assembly of any technical solution of the present invention, and thus has all the technical effects of the joint assembly of any technical solution of the present invention.

[0044] 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.

[0045] It should be noted that the above preferred embodiments are only used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art may adjust the above configuration so that the present invention can be applied to more specific application scenarios.

[0046] Of course, the above-mentioned replaceable implementations, as well as the replaceable implementations and the preferred implementations, can be used in a cross-functional manner to combine new implementations to suit more specific application scenarios.

[0047] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A joint assembly for connecting to a liquid cooling plate, characterized in that: include: A pipe, the pipe comprising a pipe body and a sleeve connected to the pipe body; A connector comprising a main body, an insert provided on a first side of the main body, and a connecting pipe provided on a second side of the main body; The sleeve and the tube body are surrounded to form a receiving cavity, the insert is accommodated in the receiving cavity, the insert is clamped and fitted with the sleeve, and a floating space is provided between the insert and the sleeve in the axial direction of the sleeve.

2. The joint assembly according to claim 1, wherein: One of the insert and the sleeve is provided with a clamping portion, and the other is provided with a clamping groove, and the clamping portion is clamped in the clamping groove.

3. The joint assembly according to claim 2, wherein: The insert includes a body, the holding portion is arranged on the outside of the body, the sleeve includes a base, the holding groove is arranged on the base, and the holding portion cooperates with the holding groove.

4. The joint assembly according to claim 3, wherein: There are multiple clamping parts and clamping grooves. The clamping parts are evenly distributed along the circumference of the main body, and the clamping grooves are evenly distributed along the circumference of the base. The clamping parts and the clamping grooves are arranged at corresponding positions.

5. The joint assembly according to claim 1, wherein: The inner wall of the sleeve and the outer wall of the tube body are arranged to form the accommodating cavity. A first wall connecting the inner wall of the sleeve and the outer wall of the tube body is provided between the inner wall of the sleeve and the outer wall of the tube body. A second wall is provided on the side of the insert facing the sleeve. A predetermined distance is provided between the first wall and the second wall.

6. The joint assembly according to claim 1, wherein: The insert is arranged between the tube body and the sleeve, and sealing rings are arranged between the insert, the tube body and the sleeve.

7. The joint assembly according to claim 6, wherein: The sleeve is arranged on the outside of the tube body in a radial direction, and the insert is sleeved on the outside of the tube body in a radial direction.

8. The joint assembly according to claim 1, wherein: The insert and the connecting pipe are both hollow and connected. A valve core component capable of opening and closing the joint is provided in the insert and / or the connecting pipe.

9. A cooling system, characterized in that: The invention comprises a joint assembly according to 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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