A joint structure for an oil cooler

CN224886538UActive Publication Date: 2026-10-23CHIPING HAIRUN AUTO PARTS
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Patent Information

Application Number
CN202522670207.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-17
Publication Date
2026-10-23
Estimated Expiration
2035-12-17

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供一种油冷器用接头结构,以解决上述背景技术中提出的现有接头结构在密封性能上存在不足的问题

Benefits of technology

[0016]在本实用新型中,通过在油冷器内部增设密封组件,能够实现多重密封,相较于传统单一橡胶密封圈,该密封组件不仅通过多重密封防线显著降低泄漏风险,更通过优化密封介质接触界面,将密封圈与高温油液的直接接触面积减少,较传统结构提升,显著延长了密封圈统使用寿命。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a joint structure for oil cooler, including the communicating pipe, one end is connected with the connector, and the other end is connected with the plug connector, the end pipe is screwed into the connector, and both screw connections, wherein the end pipe is connected with the pipeline of the external oil cooler or oil cooler related equipment, the inside of connector is provided with the sealing assembly, and the sealing assembly includes: the butt joint piece, and the coaxial heart of connector is arranged, and the butt joint piece is connected with the inner wall screw of connector, the adjusting part is arranged between butt joint piece and connector, in the utility model, through the sealing assembly of adding in the oil cooler inside, can realize multiple seals, compared with traditional single rubber sealing ring, the sealing assembly not only reduces the leakage risk through multiple sealing defense line is remarkable, and more through the optimization sealing medium contact interface, reduces the direct contact area of sealing ring and high temperature oil liquid, and compared with traditional structure promotion, prolongs the service life of sealing ring system significantly.
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Description

Technical Field

[0001] This utility model belongs to the field of oil cooler technology, and specifically relates to a connector structure for oil coolers. Background Technology

[0002] In the automotive industry, oil coolers, as critical thermal management components, play a vital role in maintaining the normal operating temperature of the engine and transmission system. The oil cooler connector structure is a key link connecting the oil cooler to the cooling system piping, and its design directly affects cooling efficiency and system reliability.

[0003] Currently, automotive oil cooler joints rely on a single rubber sealing ring to achieve static sealing. While this traditional sealing solution has the advantages of simple structure and low cost, the sealing mechanism is overly dependent on mechanical clamping force. Secondly, the sealing ring is prone to permanent deformation, hardening and cracking under long-term immersion in high-temperature oil, and there is also a risk of chemical corrosion when facing cooling media such as ethylene glycol. Furthermore, this structure lacks redundant design, and the failure of a single sealing element can lead to leakage of the entire cooling system, posing a significant safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a joint structure for oil coolers to solve the problem of insufficient sealing performance of existing joint structures mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connector structure for an oil cooler, comprising a connecting pipe with a connector at one end and a plug at the other end; an end pipe screwed into the connector, and the two being threadedly connected, wherein the end pipe is a pipe connected to an external oil cooler or related equipment of the oil cooler; a sealing assembly is provided inside the connector, the sealing assembly comprising: a mating member, coaxially arranged with the connector, the mating member being threadedly connected to the inner wall of the connector; and an adjusting member disposed between the mating member and the connector, wherein the adjusting member pushes the mating member upward to achieve a sealing connection between the mating member and the end pipe.

[0006] Preferably, the docking component includes a docking sleeve and a closing ring;

[0007] The connecting sleeve consists of a ring and a hollow cylinder fixed at the center of the bottom end face of the ring. The hollow cylinder part of the connecting sleeve passes through the connector and is inserted into the interior of the connecting pipe. The outer wall of the hollow cylinder of the connecting sleeve fits seamlessly with the inner wall of the connecting pipe.

[0008] The closed ring is fixed on the top surface of the annular part of the mating sleeve, and the inner side of the closed ring has an inclined surface facing outward.

[0009] Preferably, the adjusting element is a spring, and the two ends of the spring abut against the bottom end face of the mating sleeve ring and the inner bottom end face of the connector, respectively.

[0010] Preferably, a mating ring is fixed to the inner wall of the end tube. The mating ring fits against the top surface of the closing ring. Under the elastic force of the spring, the closing ring will press against the bottom surface of the mating ring, thereby achieving a sealing effect.

[0011] During installation, first screw the end tube into the connector. As the end tube is screwed down, it will compress the mating sleeve. At this time, under the spring's rebound, the closing ring will press against the mating ring. During use, the medium will be directly transmitted from the hollow cylinder of the mating sleeve. During medium transmission, the closing ring and the mating ring form the first seal. At the same time, the end tube will press against the sealing gasket as it is screwed down, forming a second seal to increase the sealing effect.

[0012] Preferably, the top surface of the annulus constituting the mating sleeve is further provided with a sealing gasket, which abuts against the bottom surface of the end tube to form a second seal, further preventing leakage. At the same time, the sealing gasket here will not come into contact with the medium under normal circumstances, so it can have a long service life.

[0013] Preferably, a semi-circular groove is formed at the middle of the contact surface of the closing ring and the docking ring, and a sealing ring is embedded in the groove. The sealing ring abuts against the closing ring and the docking ring respectively, thereby improving the sealing effect of the docking ring and the closing ring.

[0014] Preferably, the connector has at least two outwardly expanding bosses, the longitudinal section of which is an isosceles trapezoid.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, by adding a sealing component inside the oil cooler, multiple seals can be achieved. Compared with the traditional single rubber sealing ring, this sealing component not only significantly reduces the risk of leakage through multiple sealing lines, but also reduces the direct contact area between the sealing ring and the high-temperature oil by optimizing the contact interface of the sealing medium, which is an improvement over the traditional structure and significantly extends the service life of the sealing ring system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the connection between the present invention and the end tube;

[0019] Figure 3 This utility model Figure 2 A sectional view;

[0020] Figure 4 This utility model Figure 3 An enlarged schematic diagram of region A in the middle.

[0021] In the picture:

[0022] 100. Connecting pipe; 101. Connector; 102. Insertor; 103. End pipe; 104. Butt ring;

[0023] 200. Connecting sleeve; 201. Spring; 202. Sealing gasket; 204. Closing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4 This utility model provides a technical solution: a connector structure for an oil cooler, including...

[0026] The connecting pipe 100 has a connector 101 connected to one end and a plug 102 connected to the other end.

[0027] End pipe 103 is screwed into connector 101 and the two are threaded together, wherein end pipe 103 is a pipe connected to an external oil cooler or related equipment of oil cooler;

[0028] The connector 101 has a sealing assembly inside, which includes:

[0029] A mating part is coaxially arranged with the connector 101, and the mating part is threadedly connected to the inner wall of the connector 101;

[0030] An adjusting element is provided between the mating part and the connector 101. The adjusting element pushes the mating part upward to achieve a sealed connection between the mating part and the end pipe 103.

[0031] In this embodiment, preferably, the docking component includes a docking sleeve 200 and a closing ring 204;

[0032] The docking sleeve 200 consists of a ring and a hollow cylinder fixed at the center of the bottom end face of the ring. The hollow cylinder part of the docking sleeve 200 passes through the connector 101 and is inserted into the interior of the connecting pipe 100. The outer wall of the hollow cylinder of the docking sleeve 200 fits seamlessly with the inner wall of the connecting pipe 100.

[0033] The closing ring 204 is fixed on the top surface of the annular part of the mating sleeve 200, and the inner side of the closing ring 204 has an inclined surface facing outward.

[0034] In this embodiment, preferably, the adjusting element is a spring 201, the two ends of which abut against the bottom end face of the annular sleeve 200 and the inner bottom end face of the connector 101, respectively.

[0035] In this embodiment, preferably, a docking ring 104 is fixedly provided on the inner wall of the end tube 103. The docking ring 104 is in contact with the top surface of the closing ring 204. Under the elastic force of the spring 201, the closing ring 204 will press against the bottom surface of the docking ring 104, thereby achieving a sealing effect.

[0036] During installation, the end tube 103 is first screwed into the connector 101. As the end tube 103 is screwed down, it will compress the mating sleeve 200. At this time, under the rebound of the spring 201, the closing ring 204 will press against the mating ring 104. In use, the medium will be directly transmitted from the hollow cylinder of the mating sleeve 200. During the medium transmission, the closing ring 204 and the mating ring 104 form the first seal. At the same time, the end tube 103 will press against the sealing gasket 202 as it is screwed down, forming a second seal to increase the sealing effect.

[0037] In this embodiment, preferably, a sealing gasket 202 is also provided on the top surface of the annulus constituting the mating sleeve 200. The sealing gasket 202 abuts against the bottom surface of the end tube 103 to form a second seal, further preventing leakage. At the same time, the sealing gasket 202 here will not come into contact with the medium under normal circumstances, so it can have a long service life.

[0038] In this embodiment, preferably, a semi-circular groove is formed at the middle position of the contact surface of the closing ring 204 and the docking ring 104, and a sealing ring is embedded in the groove. The sealing ring abuts against the closing ring 204 and the docking ring 104 respectively, thereby improving the sealing effect of the docking ring 104 and the closing ring 204.

[0039] In this embodiment, preferably, the connector 102 has at least two outwardly expanding bosses, the longitudinal section of which is an isosceles trapezoid.

[0040] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connector structure for an oil cooler, comprising a connecting pipe (100), one end connected to a connector (101), and the other end connected to a plug connector (102); an end pipe (103) screwed into the connector (101), and the two being threadedly connected; characterized in that: The connector (101) is provided with a sealing assembly inside, which includes: a mating part, which is coaxially arranged with the connector (101) and threadedly connected to the inner wall of the connector (101); and an adjusting part, which is disposed between the mating part and the connector (101).

2. The joint structure for an oil cooler according to claim 1, characterized in that: The docking component includes a docking sleeve (200) and a closing ring (204); The docking sleeve (200) is composed of a ring and a hollow cylinder fixed at the center of the bottom end face of the ring. The hollow cylinder part of the docking sleeve (200) passes through the connector (101) and is inserted into the interior of the connecting pipe (100). The outer wall of the hollow cylinder of the docking sleeve (200) fits seamlessly with the inner wall of the connecting pipe (100). The closed ring (204) is fixed on the top surface of the annular part of the mating sleeve (200), and the inner side of the closed ring (204) has an inclined surface facing outward.

3. The joint structure for an oil cooler according to claim 2, characterized in that: The adjusting component is a spring (201), and the two ends of the spring (201) abut against the bottom end face of the annular ring of the mating sleeve (200) and the inner bottom end face of the connector (101), respectively.

4. The joint structure for an oil cooler according to claim 3, characterized in that: The inner wall of the end tube (103) is fixed with a docking ring (104), which is in contact with the top surface of the closed ring (204).

5. The joint structure for an oil cooler according to claim 4, characterized in that: A sealing gasket (202) is also provided on the top surface of the annulus constituting the docking sleeve (200), which abuts against the bottom surface of the end tube (103).

6. The joint structure for an oil cooler according to claim 4, characterized in that: The contact surfaces of the closed ring (204) and the docking ring (104) are each formed with a semi-circular groove, and a sealing ring is embedded in the groove. The sealing ring abuts against the closed ring (204) and the docking ring (104) respectively.

7. The joint structure for an oil cooler according to claim 1, characterized in that: The connector (102) has at least two outwardly expanding bosses, the longitudinal section of which is an isosceles trapezoid.