Tight connection structure of water inlet and outlet pipe and end cover

Abstract

The utility model discloses a tight connection structure of a water inlet / outlet pipe and an end cover, and belongs to the technical field of new energy battery cooling. The tight connection structure of the water inlet and outlet pipe and the end cover comprises a water pipe body and an end cover body, the water pipe body and the end cover body are connected through threads, a sealing piece is connected into the end cover body in a clamped mode, and a first conical face is arranged on the inner wall of the upper end of the water pipe body. A second conical surface is arranged on the outer wall of the upper end of the water pipe body. According to the tight connection structure of the water inlet and outlet pipe and the end cover, the metal ball abuts against the first conical face to achieve one-layer sealing, the spherical wrapping film is connected outside the metal ball in a sleeved mode, the effect of the first-layer sealing can be improved, meanwhile, the spherical wrapping film plays a role in protecting the metal ball, the metal ball can enhance the strength of the end cover body, and the service life of the end cover body is prolonged. The end of the water pipe body is supported and fixed, and deformation of the water pipe body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery cooling, and more specifically, to a close connection structure between an inlet and outlet water pipe and an end cover. Background Art

[0002] With the rapid development of new energy vehicles, the thermal management requirements for battery systems are getting higher and higher. The high-voltage battery cooler (Chiller) is a type of heat exchanger that combines the functions of an evaporator and a heat exchanger. It is a key component that couples the battery liquid cooling circuit and the cabin air conditioning circuit. It is also one of the incremental components of the thermal management system of new energy vehicles using a liquid cooling solution. As an important component of the battery system, the stability of the connection between the inlet and outlet water pipes and the end caps of the battery cooler directly affects the cooling efficiency and safety. The existing connection method is prone to leakage after long-term use, affecting the cooling effect and even causing safety hazards. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and provides a close connection structure between an inlet and outlet water pipe and an end cover to solve the above deficiencies.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0005] The utility model discloses a tight connection structure between an inlet and outlet water pipe and an end cover, comprising a water pipe body and an end cover body, wherein the water pipe body and the end cover body are connected by threads, a sealing member is snap-connected in the end cover body, a first conical surface is provided on the inner wall of the upper end of the water pipe body, a second conical surface is provided on the outer wall of the upper end of the water pipe body, and both the first conical surface and the second conical surface are tightly pressed against the sealing member.

[0006] Preferably, the water pipe body is connected with an external thread at a position below the second conical surface, and the water pipe body is engaged with the end cover body through the external thread.

[0007] Preferably, a metal ball is fixedly connected to the top inner wall of the end cover body, and a snap-fit ​​groove for installing a sealing member is reserved between the metal ball and the side wall of the end cover body.

[0008] Preferably, the seal comprises a spherical envelope, a top extrusion ring and a conical surface contact ring, the inner ring of the top extrusion ring is fixedly connected to the upper end of the spherical envelope, and the outer ring of the top extrusion ring is fixedly connected to the upper end of the conical surface contact ring.

[0009] Preferably, the top extrusion ring is engaged with the engagement groove, the spherical envelope is sleeved on the outside of the metal ball, and the outer wall of the spherical envelope abuts against the first conical surface, and the inner wall of the conical surface abutting ring abuts against the second conical surface.

[0010] Preferably, an annular groove is provided inside the top extrusion ring, and the cross section of the annular groove is elliptical or circular.

[0011] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0012] The utility model discloses a close connection structure between an inlet and outlet water pipe and an end cover, wherein a metal ball is abutted against a first conical surface to realize a layer of sealing, and a spherical membrane is sleeved on the outside of the metal ball, which can improve the effect of the first layer of sealing. At the same time, the spherical membrane protects the metal ball, and the metal ball can enhance the strength of the end cover body, and support and fix the end of the water pipe body to avoid deformation of the water pipe body. A top extrusion ring and a conical surface sticking ring are respectively arranged on the top and side wall positions where the water pipe body and the end cover body contact, and a second layer of sealing and a third layer of sealing are performed from different directions, thereby improving the sealing effect and avoiding leakage. The water pipe body and the end cover body are connected by threads, which are easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded first perspective view of the close connection structure between the water inlet and outlet pipes and the end cover of the utility model;

[0014] Figure 2 This is a second perspective view of the close connection structure between the water inlet and outlet pipes and the end cover of the utility model;

[0015] Figure 3 It is a cross-sectional view of the close connection structure between the water inlet and outlet pipes and the end cover of the utility model;

[0016] Figure 4 This is a structural diagram of the seal of the present utility model.

[0017] In the figure: 1, water pipe body; 11, first conical surface; 12, second conical surface; 13, external thread; 2, end cover body; 21, metal ball; 22, snap-fit ​​groove; 3, sealing element; 31, spherical envelope; 32, top extrusion ring; 321, ring groove; 33, conical surface sticking ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0020] Combination Figure 1-Figure 4 In this embodiment, the tight connection structure between the inlet and outlet water pipes and the end cover includes a water pipe body 1 and an end cover body 2, the water pipe body 1 and the end cover body 2 are connected by threads, the outer wall of the end cover body 2 is provided with anti-slip grooves, and a seal 3 is snap-connected inside the end cover body 2, a first conical surface 11 is provided on the inner wall of the upper end of the water pipe body 1, and a second conical surface 12 is provided on the outer wall of the upper end of the water pipe body 1, the top of the water pipe body 1 between the first conical surface 11 and the second conical surface 12 is a plane structure, and the first conical surface 11 and the second conical surface 12 are both tightly pressed against the seal 3.

[0021] In this embodiment, the water pipe body 1 is connected with an external thread 13 at a position below the second conical surface 12. The water pipe body 1 is engaged with the end cover body 2 through the external thread 13. The threaded connection facilitates the installation and disassembly of the end cover body 2 and reduces the difficulty of use.

[0022] In this embodiment, a metal ball 21 is fixedly connected to the top inner wall of the end cover body 2. The metal ball 21 is strong and not easy to deform, so it strengthens the end cover body 2. At the same time, it supports the end of the water pipe body 1 to prevent the port of the water pipe body 1 from deforming. A snap-fit ​​groove 22 for installing the seal 3 is reserved between the metal ball 21 and the side wall of the end cover body 2. The seal 3 is arranged between the water pipe body 1 and the end cover body 2 to enhance the sealing effect.

[0023] In this embodiment, the sealing member 3 includes a spherical envelope 31, a top extrusion ring 32 and a conical surface ring 33. The inner ring of the top extrusion ring 32 is fixedly connected to the upper end of the spherical envelope 31, and the outer ring of the top extrusion ring 32 is fixedly connected to the upper end of the conical surface ring 33. The spherical envelope 31, the top extrusion ring 32 and the conical surface ring 33 are all made of rubber material and are integrally formed to achieve sealing effects on different connection points of the water pipe body 1 and the end cover body 2.

[0024] In this embodiment, the top extrusion ring 32 is engaged with the engagement groove 22, the spherical envelope 31 is sleeved on the outside of the metal ball 21, and the outer wall of the spherical envelope 31 is against the first conical surface 11. Under the action of the metal ball 21, the spherical envelope 31 is driven to be close to the first conical surface 11, and the extruded part of the spherical envelope 31 is slightly deformed to play a sealing role. The metal ball 21 enhances the strength of the spherical envelope 31 to avoid excessive deformation and maintain a good sealing effect. The metal ball 21 1 forms a first layer of sealing with the spherical envelope 31 and the first conical surface 11, the top extrusion ring 32 is tightly pressed against the upper end of the water pipe body 1, and can play a second layer of sealing, the inner wall of the conical surface abutting ring 33 is pressed against the second conical surface 12, and after the end cover body 2 and the water pipe body 1 are tightly closed, the conical surface abutting ring 33 is squeezed by the top extrusion ring 32, and the conical surface abutting ring 33 extends to the lower end of the second conical surface 12, and the inner wall of the conical surface abutting ring 33 is tightly pressed against the second conical surface 12 to form a third layer of sealing.

[0025] In this embodiment, an annular groove 321 is provided inside the top extrusion ring 32, and the cross-section of the annular groove 321 is elliptical. After being extruded, the top extrusion ring 32 is deformed, and the annular groove 321 allows the top extrusion ring 32 to extend to both sides after being extruded, pushing the spherical envelope 31 and the conical surface ring 33 tightly.

[0026] Working process: During installation, first install the seal 3 into the end cover body 2. After the top extrusion ring 32 is engaged with the engagement groove 22, the spherical capsule 31 is sleeved with the metal ball 21. The outer wall of the conical surface ring 33 is fitted with the inner wall of the end cover body 2. The end cover body 2 is installed on the water pipe body 1 together with the seal 3. The end cover body 2 is screwed. The metal ball 21 and the spherical capsule 31 contact the first conical surface 11. After the end cover body 2 is screwed into place, the spherical capsule 31 is pressed against the first conical surface 11 under the action of the metal ball 21. The top extrusion ring 32 is squeezed and deformed by the end cover body 2 and the water pipe body 1, and the end cover body 2 and the water pipe body 1 are sealed. The inner wall of the conical surface ring 33 is squeezed against the second conical surface 12.

[0027] To sum up: the utility model provides a tight connection structure between an inlet and outlet water pipe and an end cover, which adopts a metal ball 21 to abut against a first conical surface 11 to realize a layer of sealing, and a spherical coating 31 is sleeved on the outside of the metal ball 21, which can improve the effect of the first layer of sealing. At the same time, the spherical coating 31 protects the metal ball 21, and the metal ball 21 can enhance the strength of the end cover body 2, and support and fix the end of the water pipe body 1 to prevent the water pipe body 1 from deformation. A top extrusion ring 32 and a conical surface sticking ring 33 are respectively arranged on the top and side wall positions where the water pipe body 1 and the end cover body 2 contact, and a second layer of sealing and a third layer of sealing are performed from different directions, which improves the sealing effect and avoids leakage. The water pipe body 1 and the end cover body 2 are connected by threads, which are easy to install and disassemble.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A close connection structure between an inlet and outlet water pipe and an end cover, comprising a water pipe body (1) and an end cover body (2), characterized in that: The water pipe body (1) and the end cover body (2) are connected by threads, and a sealing member (3) is snap-connected inside the end cover body (2). A first conical surface (11) is provided on the inner wall of the upper end of the water pipe body (1), and a second conical surface (12) is provided on the outer wall of the upper end of the water pipe body (1). Both the first conical surface (11) and the second conical surface (12) are tightly pressed against the sealing member (3).

2. The tight connection structure between the water inlet and outlet pipes and the end caps according to claim 1 is characterized in that: The water pipe body (1) is connected with an external thread (13) at a position below the second conical surface (12), and the water pipe body (1) is meshed with the end cover body (2) via the external thread (13).

3. The close connection structure between the water inlet and outlet pipes and the end caps according to claim 2 is characterized in that: A metal ball (21) is fixedly connected to the top inner wall of the end cover body (2), and a snap-fit ​​groove (22) for installing a sealing member (3) is reserved between the metal ball (21) and the side wall of the end cover body (2).

4. The close connection structure between the water inlet and outlet pipes and the end caps according to claim 3 is characterized in that: The sealing member (3) comprises a spherical envelope (31), a top extrusion ring (32) and a conical surface contact ring (33); the inner ring of the top extrusion ring (32) is fixedly connected to the upper end of the spherical envelope (31); and the outer ring of the top extrusion ring (32) is fixedly connected to the upper end of the conical surface contact ring (33).

5. The close connection structure between the water inlet and outlet pipes and the end caps according to claim 4 is characterized in that: The top extrusion ring (32) is engaged with the engagement groove (22), the spherical envelope (31) is sleeved on the outside of the metal ball (21), the outer wall of the spherical envelope (31) abuts against the first conical surface (11), and the inner wall of the conical surface contact ring (33) abuts against the second conical surface (12).

6. The close connection structure between the water inlet and outlet pipes and the end caps according to claim 5, characterized in that: An annular groove (321) is provided inside the top extrusion ring (32), and the cross section of the annular groove (321) is elliptical or circular.

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