CN115306966A

CN115306966A - Pipeline connecting structure and liquid cooling system

Info

Publication number: CN115306966A
Application number: CN202210999435.6A
Authority: CN
Inventors: 邱文聪; 陈朝海; 陈智伟; 李凡
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-11-08

Abstract

The invention relates to the technical field of batteries and discloses a pipeline connecting structure and a liquid cooling system. The liquid cooling pipe joint structure comprises a first joint, a second joint and a sealing element, wherein the second joint is sleeved on the first joint, the sealing element is sleeved outside the first joint and connected between the first joint and the second joint, and the sealing element is in interference fit with the second joint. When the installation, the second connects and can embolia and compress tightly on the sealing member along the edge of sealing member to ensure the leakproofness between second joint and the first joint, improve sealed effect, prevent the phenomenon emergence of weeping, improved the practicality.

Description

Pipeline connecting structure and liquid cooling system

Technical Field

The invention relates to the technical field of batteries, in particular to a pipeline connecting structure and a liquid cooling system.

Background

The power battery assembly is used as a main energy storage component of new energy equipment, and is widely applied to various industries due to the characteristics of high power and stable voltage output. The importance of the battery module as a core component of the power battery assembly is self-evident. The liquid cooling device is used as a main component of the power battery heat management system and has the functions of cooling, heating, temperature balancing and the like of the battery module.

The liquid cooling device is usually connected with a joint which is communicated with a liquid cooling pipeline, and cooling liquid can be filled into the liquid cooling device through the liquid cooling pipeline. The liquid cooling pipe connection comprises a second joint and a first joint which are connected, the second joint is used for being communicated with an external water pipe, and the first joint is connected to the liquid cooling device. In the prior art, in the process of cooling liquid circulation, the joint position between the second joint and the first joint may have the phenomenon of weeping, resulting in the practicality relatively poor.

Therefore, it is desirable to provide a pipe connection structure and a liquid cooling system to solve the above problems.

Disclosure of Invention

According to an aspect of the present invention, it is an object of the present invention to provide a pipe connection structure that can improve sealing performance, prevent a liquid leakage phenomenon, and improve practicality.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a pipe connecting structure comprising:

a first joint;

the second joint is sleeved on the first joint;

the sealing element is sleeved outside the first joint and connected between the first joint and the second joint, and the sealing element is in interference fit with the second joint.

As a preferred scheme of pipeline connection structure, the outer wall epirelief of sealing member is equipped with along the boss structure that circumference was encircleed, boss structure with the second connects interference fit.

As a preferable scheme of the pipeline connecting structure, the number of the boss structures is set to be plural, and the plural boss structures are arranged at intervals along the axial direction of the sealing element.

As a preferable scheme of the pipeline connecting structure, the boss structure comprises a guide section and a sealing section which are connected, the guide section inclines towards the nesting direction of the second joint, and the second joint can be pressed on the sealing section.

As a preferable scheme of the pipeline connecting structure, the length of the sealing section of each boss structure is sequentially increased along the sheathing direction of the second joint.

As a preferable mode of the pipe connection structure, an axial cross section of the boss structure on the sealing member, which is first in contact with the second joint, is triangular.

As a preferable scheme of the pipeline connecting structure, the sealing element includes a first sealing portion and a second sealing portion, the second sealing portion is formed by bending an end face of the first sealing portion inwards, the first sealing portion is sleeved on a side wall of the first joint, and the second sealing portion is attached to the end face of the first joint.

As a preferable scheme of the pipeline connecting structure, one end of the sealing element, which is far away from the first joint, is provided with a clearance groove along the axial direction.

As a preferable aspect of the pipe connecting structure, the number of the clearance grooves is set to at least two.

As a preferable scheme of the pipeline connecting structure, the first joint comprises a first locking and attaching portion and a first connecting portion which are connected, the outer diameter of the first locking and attaching portion is larger than that of the first connecting portion, and the sealing element is sleeved outside the first connecting portion.

As a pipeline connection structure's preferred scheme, the second connects including the second lock that connects gradually and attaches portion, second connecting portion and pipeline connecting portion, the internal diameter that second lock attached portion, second connecting portion and pipeline connecting portion reduce in proper order, second lock attach portion with first lock attaches a threaded connection, second connecting portion cover is located outside the sealing member, pipeline connecting portion are used for connecting external pipeline.

As a preferable aspect of the pipe connecting structure, the length of the second connecting portion is less than twice the length of the second locking portion.

According to another object of the present invention, there is also provided a liquid cooling system including a liquid cooling device, and further including a pipe connection structure as described in any one of the above, the pipe connection structure being connected to the liquid cooling device.

The invention has the beneficial effects that:

the pipeline connecting structure provided by the invention has a simple structure and is convenient to operate, wherein the sealing element and the second joint are in interference fit, and when the pipeline connecting structure is installed, the second joint can be sleeved and pressed on the sealing element along the edge of the sealing element, so that the sealing property between the second joint and the first joint is ensured, the sealing effect is improved, the phenomenon of liquid leakage is prevented, and the practicability is improved.

According to the liquid cooling system provided by the invention, the liquid leakage phenomenon can be avoided and the cooling efficiency is improved by applying the pipeline connecting structure.

Drawings

In order to make the description of the embodiments of the present invention or the technical solutions in the prior art more obvious and understandable, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and the drawings described below are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a liquid cooling system according to an embodiment of the present invention;

FIG. 2 isbase:Sub>A first cross-sectional view taken at A-A of FIG. 1;

FIG. 3 isbase:Sub>A second cross-sectional view taken at A-A of FIG. 1;

FIG. 4 is an exploded view of a pipe connection structure provided by an embodiment of the present invention;

FIG. 5 is a schematic view of a seal provided by an embodiment of the present invention from a first perspective;

fig. 6 is a schematic structural diagram of a sealing member provided in an embodiment of the present invention at a second viewing angle.

In the figure:

100. a liquid cooling device; 200. a pipeline connecting structure;

1. a first joint; 11. a first locking portion; 12. a first connection portion;

2. a second joint; 21. a second locking part; 22. a second connecting portion; 23. a pipe connection;

3. a seal member; 31. a first seal portion; 32. a second seal portion; 33. a clearance groove;

4. a boss structure; 41. a guide section; 42. and a sealing section.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

Referring to fig. 1, the present embodiment provides a liquid cooling system, which includes a liquid cooling apparatus 100 and a pipe connection structure 200, wherein the pipe connection structure 200 is connected to the liquid cooling apparatus 100. It should be noted that the opposite ends of the liquid cooling device 100 are connected to the pipe connection structures 200, one of the pipe connection structures is used for connecting to a water inlet pipe, and the other pipe connection structure is used for connecting to a water outlet pipe, so that heat is taken out of the battery pack through the flow of the cooling liquid.

Specifically, as shown in fig. 4, the pipe connection structure 200 provided in this embodiment includes a first joint 1, a second joint 2 and a sealing member 3, where the first joint 1 is connected to the liquid cooling device 100, and the first joint 1 and the liquid cooling device 100 may be fixedly connected or integrally formed; the second joint 2 is sleeved on the first joint 1, and the second joint 2 is used for connecting an external pipeline; the sealing element 3 is sleeved outside the first joint 1 and is connected between the first joint 1 and the second joint 2 in a sealing manner, and the sealing element 3 and the second joint 2 are in interference fit to prevent liquid leakage. The first connector 1 is connected to the liquid cooling device 100, and the second connector 2 is connected to an external pipeline. The central point that second connects 2 and first joint 1 puts all seted up the through-hole along the axial, and the aperture is the same, when second joint 2 cover was located on first joint 1, two through-holes butt joint intercommunications to transmit the coolant liquid in to liquid cooling device 100.

Further, with continued reference to fig. 4, in order to improve the sealing effect, a circumferentially surrounding boss structure 4 is convexly arranged on the outer wall of the sealing element 3, and the boss structure 4 is in interference fit with the second joint 2. When the installation, the second connects 2 can embolia and compress tightly on boss structure 4 along boss structure 4's edge to ensure the second and connect 2 and the first leakproofness that connects between 1, improve sealed effect, prevent the phenomenon emergence of weeping, and simple to operate has improved the practicality. Wherein, the external diameter of boss structure 4 is greater than the external diameter of sealing member 3, and the length of boss structure 4 is less than the length of sealing member 3, not only can improve sealed effect, can also make things convenient for the second to connect 2's installation.

Preferably, with continued reference to fig. 4, the number of boss structures 4 is provided in plurality, with a plurality of boss structures 4 being spaced apart in the axial direction of the seal 3. By adopting such an arrangement, the sealing effect can be further improved. Further preferably, in the present embodiment, the number of boss structures 4 is four, and four boss structures 4 are provided at intervals in the axial direction of the seal member 3. Of course, the number of boss structures 4 is not limited to the above limitation, and in other embodiments, the number of boss structures 4 may be adaptively selected according to actual requirements.

Preferably, the sealing member 3 and the plurality of boss structures 4 are of an integrally formed structure. Can reduce the link of equipment between each part man-hour, save manufacturing cost, structural firm more durable, convenient and fast more during the installation, and cancelled the use of connecting piece.

Further, as shown in fig. 5, the boss structure 4 includes a guiding section 41 and a sealing section 42, the guiding section 41 is inclined toward the sheathing direction of the second connector 2, the sealing section 42 is connected to the end surface of the guiding section 41 close to the liquid cooling device 100, and the second connector 2 can be pressed against the sealing section 42. The axial section of the guide section 41 is triangular, so that the second connector 2 can be installed in a guiding manner, and the installation is convenient. The axial cross section of the sealing section 42 is rectangular, and the sealing section 42 is in interference fit with the inner wall of the second joint 2, so that the sealing effect is ensured.

Preferably, with continued reference to fig. 5, the sealing section 42 of each boss structure 4 increases in length in the nesting direction of the second joint 2. Referring to fig. 5, four boss structures 4 are taken as an example for explanation, the boss structures 4 are divided into four stages, the stage farthest from the liquid cooling device 100 is the first stage, and the other three stages are sequentially increased along the nesting direction of the second connector 2. For the convenience of installation, the axial cross section of the first stage boss structure 4 is triangular, that is, the length of the sealing section 42 is zero, and only the guide section 41 is included, and the boss structure 4 mainly plays a role in guiding. Along with the increase of the number of stages, the length of the sealing section 42 is sequentially increased, so that the sealing effect is also increased, the front two-stage boss structure 4 is mainly used for facilitating installation, and the rear two-stage boss structure 4 is mainly used for ensuring sealing performance.

Further, as shown in fig. 6, in order to effectively ensure the sealing reliability, the sealing element 3 includes a first sealing portion 31 and a second sealing portion 32, the second sealing portion 32 is formed by bending the end surface of the first sealing portion 31 inward, the first sealing portion 31 is sleeved on the side surface of the first joint 1, the boss structures 4 are all located on the side wall of the first sealing portion 31, and the second sealing portion 32 is a circular ring structure and is attached on the end surface of the first joint 1 away from the liquid cooling device 100, so as to increase the sealing reliability.

Preferably, with continued reference to fig. 6, one end of the sealing member 3 away from the first joint 1 is opened with a clearance groove 33 along the axial direction, and the clearance groove 33 penetrates through the side wall of the sealing member 3 along the thickness direction. It should be noted that, since the seal 3 requires an interference fit, the seal 3 and the second joint 2 are difficult to install. Through set up clearance groove 33 at sealing member 3 front end, not only can make things convenient for the installation of sealing member 3, can also make things convenient for the installation of second joint 2. When the second connector 2 is installed, a deformation space exists at the clearance groove 33 of the sealing element 3, and the second connector 2 can extrude the sealing element 3 more conveniently, so that the installation is convenient. Further preferably, the number of the gap grooves 33 is at least two, preferably two, and the two gap grooves 33 are disposed on two opposite sides of the sealing member 3, so that the installation of the sealing member 3 and the second joint 2 can be more convenient, and the installation efficiency can be improved.

Further, as shown in fig. 4, the first joint 1 includes a first locking portion 11 and a first connecting portion 12 which are connected, an outer diameter of the first locking portion 11 is larger than an outer diameter of the first connecting portion 12, and the sealing element 3 is sleeved outside the first connecting portion 12. Suitably, the second joint 2 comprises a second locking part 21, a second connecting part 22 and a pipeline connecting part 23 which are connected in sequence, the inner diameters of the second locking part 21, the second connecting part 22 and the pipeline connecting part 23 are reduced in sequence, and the inner diameter of the second locking part 21 is approximately equal to the outer diameter of the first locking part 11. The second locking part 21 is provided with an internal thread, the first locking part 11 is provided with an external thread, and the second locking part 21 is sleeved on the first locking part 11 and then is in threaded connection with the first locking part 11. The second connecting portion 22 is sleeved outside the sealing member 3 and is in interference fit with the sealing member 3, and the pipeline connecting portion 23 is used for connecting an external water pipe. By adopting the stepped arrangement, the installation of the second connector 2 is more convenient.

It should be noted that, as shown in fig. 3, in order to ensure the sealing effect, the inner bore diameter of the first sealing portion 31 may be slightly smaller than the outer diameter of the first connecting portion 12, so as to realize the interference fit between the first sealing portion 31 and the first connecting portion 12. The inner bore diameter of the second sealing portion 32 is approximately equal to the inner bore diameter of the sealing member 3, and the second sealing portion 32 is pressed between the end surface of the first connecting portion 12 and the stepped surface of the second connecting portion 22 during assembly to ensure sealability.

Preferably, the length of the second connecting portion 22 is less than twice the length of the second locking portion 21 for easy installation. It should be noted that when the second connecting portion 22 enters only half of the seal 3 (i.e. to the second stage boss structure 4), the second locking attachment portion 21 just hits the first locking attachment portion 11, as shown in fig. 2. Wherein, preceding two-stage boss structure 4 mainly plays the guide effect, and second connecting portion 22 is better to be installed, and back two-stage boss structure 4 mainly plays key sealing effect, and second connecting portion 22 is installed more difficultly, can make the installation more convenient with the help of the rotatory installation of lock attach tool, and fig. 3 is the schematic diagram after second joint 2 has installed.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A pipe connecting structure, comprising:

a first joint (1);

the second joint (2) is sleeved on the first joint (1);

and the sealing element (3) is sleeved outside the first joint (1) and connected between the first joint (1) and the second joint (2), and the sealing element (3) is in interference fit with the second joint (2).

2. The pipe connection according to claim 1, wherein a circumferentially surrounding boss structure (4) is convexly arranged on the outer wall of the sealing element (3), and the boss structure (4) is in interference fit with the second joint (2).

3. The pipe connection according to claim 2, wherein the number of the boss structures (4) is provided in plural, and plural boss structures (4) are arranged at intervals in the axial direction of the seal member (3).

4. The pipe connection according to claim 3, characterized in that the boss structure (4) comprises a guide section (41) and a sealing section (42) which are connected, the guide section (41) is inclined towards the nesting direction of the second joint (2), and the second joint (2) can be pressed against the sealing section (42).

5. The pipe connection according to claim 4, wherein the sealing section (42) of each boss structure (4) increases in length in the nesting direction of the second joint (2) in order.

6. Tubing connection according to claim 3, characterized in that the axial cross-section of the boss structure (4) of the seal (3) that first comes into contact with the second fitting (2) is triangular.

7. The pipeline connecting structure according to claim 1, wherein the sealing member (3) comprises a first sealing portion (31) and a second sealing portion (32), the second sealing portion (32) is formed by bending an end surface of the first sealing portion (31) inwards, the first sealing portion (31) is sleeved on a side wall of the first joint (1), and the second sealing portion (32) is attached to the end surface of the first joint (1).

8. The pipe connection according to claim 1, characterized in that the end of the seal (3) remote from the first joint (1) is provided with a clearance groove (33) in the axial direction.

9. The piping connection structure according to claim 8, wherein the number of the clearance grooves (33) is set to at least two.

10. The pipeline connecting structure according to claim 1, wherein the first joint (1) comprises a first locking and attaching portion (11) and a first connecting portion (12) which are connected, the outer diameter of the first locking and attaching portion (11) is larger than that of the first connecting portion (12), and the sealing element (3) is sleeved outside the first connecting portion (12).

11. The pipeline connecting structure according to claim 10, wherein the second joint (2) comprises a second locking part (21), a second connecting part (22) and a pipeline connecting part (23) which are sequentially connected, the inner diameters of the second locking part (21), the second connecting part (22) and the pipeline connecting part (23) are sequentially reduced, the second locking part (21) is in threaded connection with the first locking part (11), the second connecting part (22) is sleeved outside the sealing element (3), and the pipeline connecting part (23) is used for connecting an external pipeline.

12. The piping connection structure according to claim 11, wherein the length of the second connecting portion (22) is less than twice the length of the second locking portion (21).

13. A liquid cooling system, comprising a liquid cooling device (100) and a pipe connection structure (200) according to any one of claims 1 to 12, said pipe connection structure (200) being connected to said liquid cooling device (100).