Automobile air conditioner pipeline connecting piece structure
By using No. 1 and No. 2 sealing sleeves and a circular screw structure in the automotive air conditioning system, the problem of refrigerant leakage caused by the aging of rubber seals was solved, ensuring the sealing effect and reducing the difficulty of maintenance.
Patent Information
- Application Number
- CN202423160931.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In existing automotive air conditioning systems, aging rubber seals can lead to refrigerant leakage, affecting air conditioning performance and increasing maintenance costs.
The pipe connection is double-sealed using No. 1 and No. 2 sealing sleeves, and the sealing effect is ensured by limiting the position through a ring and screw structure.
It achieves effective refrigerant sealing, reduces the risk of leakage, and improves maintenance efficiency and seal stability.
Smart Images
Figure CN223498996U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive air conditioning technology, and in particular to a structure for automotive air conditioning pipe connectors. Background Technology
[0002] Automotive air conditioning pipe connectors are components used to connect various pipe parts of an automotive air conditioning system. Their function is to ensure a secure and well-sealed connection between pipes, ensuring that refrigerant can be smoothly and leak-free transmitted between various parts of the air conditioning system, enabling the air conditioning system to operate normally and achieve functions such as cooling and heating.
[0003] For example, Chinese Patent Publication No. CN214839155U discloses an automotive air conditioning pipe connector, an automotive air conditioning pipe connection structure, and an automobile, which includes: a pressure plate, one end of which has an installation hole and the other end of which has a connection hole; a head, which is disposed on one side of the pressure plate, one end of which is connected to the pressure plate, and a through hole is provided inside the head, which is connected to the connection hole; and multiple sealing rings, which are fitted on the outer periphery of the head.
[0004] In current automotive air conditioning systems, rubber seals are widely used for sealing pipe connections. Their sealing principle relies primarily on the elastic deformation of rubber to fill the tiny gaps at the pipe connection, thus blocking refrigerant leakage. However, this sealing method has limitations. As vehicles age and the operating environment becomes more complex, rubber seals are inevitably exposed to high temperatures, high pressures, ozone, and various chemicals, leading to aging. Aged rubber seals exhibit significantly reduced physical properties, including decreased elasticity, increased hardness, and cracking or breakage. These changes drastically compromise the sealing performance between the seal and the pipe connection, allowing refrigerant molecules to gradually leak from the leaking areas. This not only worsens the cooling or heating performance of the automotive air conditioning system but also potentially causes adverse environmental impacts due to continuous refrigerant leakage, and increases the maintenance costs and frequency of the automotive air conditioning system. Utility Model Content
[0005] The purpose of this invention is to solve the problem of refrigerant leakage from the sealed failure point due to the aging of the rubber sealing ring in the prior art, and to propose a new structure for automotive air conditioning pipe connectors.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a structure for an automotive air conditioning pipe connector, comprising a first pipe and a second pipe, one end of the first pipe being fixedly connected to a connector, a first sealing sleeve being movably sleeved on the outer side of the connector, one end of the second pipe being fixedly connected to a sealing limiting component, the sealing limiting component comprising a first ring and a sealing pipe, the outer side of the sealing pipe having several slots, the second sealing sleeve being sleeved inside the several slots, one end of the sealing pipe being movably engaged inside the connector, and the second sealing sleeve being disposed between the outer side of the sealing pipe and the inner wall of the connector.
[0007] Preferably, a second ring is fixedly connected to one side of the first ring.
[0008] Preferably, one end of the first sealing sleeve is disposed in the inner wall of the second ring.
[0009] Preferably, a third ring is fixedly connected to the outer side of the connector, and the other end of the first sealing sleeve is disposed on one side of the third ring.
[0010] Preferably, one end of the connector is fixedly connected to several screws in a ring arrangement, and the first ring has several circular holes inside, with the screws respectively moving through the holes.
[0011] Preferably, one end of each of the screws is threaded with a nut.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, the connection between pipe No. 1 and pipe No. 2 is double-sealed by a No. 1 sealing sleeve and a No. 2 sealing sleeve to ensure that the refrigerant will not leak; at the same time, the No. 1 sealing sleeve on the outside of the connector can be replaced without disassembling pipe No. 1 and pipe No. 2, reducing the difficulty of maintenance of the car air conditioning system and improving maintenance efficiency.
[0014] 2. In this utility model, the second and third rings respectively limit the two ends of the first sealing sleeve to prevent the first sealing sleeve from slipping off the top of the connector, so that the automotive air conditioning pipe connector structure can still provide a good sealing effect in a vibrating environment. Attached Figure Description
[0015] Figure 1 This utility model provides a three-dimensional structural diagram of an automotive air conditioning pipe connector.
[0016] Figure 2This utility model provides a schematic diagram of the connection relationship between pipe No. 1 and pipe No. 2 in the structure of an automotive air conditioning pipe connector;
[0017] Figure 3 This utility model provides a three-dimensional structural diagram of the first pipe in an automotive air conditioning pipe connector structure.
[0018] Figure 4 This utility model provides a three-dimensional structural diagram of the second pipe in an automotive air conditioning pipe connector structure.
[0019] Legend: 1. Pipe No. 1; 11. Connector; 111. Screw; 112. Nut; 113. Ring No. 3; 12. Sealing sleeve No. 1; 2. Pipe No. 2; 21. Sealing limit assembly; 211. Ring No. 1; 212. Sealed pipe; 213. Groove; 214. Sealing sleeve No. 2; 215. Ring No. 2; 216. Circular hole. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a connector structure for an automotive air conditioning pipe, including a first pipe 1 and a second pipe 2. One end of the first pipe 1 is fixedly connected to a connector 11, and a first sealing sleeve 12 is movably sleeved on the outside of the connector 11. One end of the second pipe 2 is fixedly connected to a sealing limiting component 21, which includes a first ring 211 and a sealing pipe 212. The outer side of the sealing pipe 212 has several slots 213, and a second sealing sleeve 12 is sleeved inside the several slots 213. The sealing sleeve 214 and the sealing pipe 212 are movably snapped into the inside of the connector 11. The second sealing sleeve 214 is set between the outer side of the sealing pipe 212 and the inner wall of the connector 11. One end of the connector 11 is fixedly connected with several screws 111 in a ring arrangement. The first ring 211 has several round holes 216 inside. The screws 111 are movably inserted into the round holes 216 respectively. One end of the screws 111 is threaded with a nut 112.
[0023] The specific setup and function of this embodiment are described below. When connecting pipe 1 and pipe 2, the first sealing sleeve 12 needs to be fitted onto one end of connector 11. Then, the sealing pipe 212 at one end of pipe 2 is inserted into connector 11. At the same time, the four screws 111 at one end of connector 11 pass through the four holes 216 of ring 211. The second sealing sleeve 214, fitted onto the outside of sealing pipe 212, is locked in the gap between sealing pipe 212 and connector 11. Then, the nut 112 is rotated, and pipe 1 and pipe 2 are stably connected. The connection between pipe 1 and pipe 2 is double-sealed by the first sealing sleeve 12 and the second sealing sleeve 214 to ensure that the refrigerant does not leak. At the same time, the first sealing sleeve 12 fitted onto the outside of connector 11 can be replaced without disassembling pipe 1 and pipe 2, reducing the difficulty of maintenance of the automotive air conditioning system and improving maintenance efficiency.
[0024] Example 2: Figure 1 - Figure 4 As shown, a connector structure for an automotive air conditioning pipe includes a first pipe 1 and a second pipe 2. One end of the first pipe 1 is fixedly connected to a connector 11, and a first sealing sleeve 12 is movably sleeved on the outside of the connector 11. One end of the second pipe 2 is fixedly connected to a sealing limiting component 21, which includes a first ring 211 and a sealing pipe 212. Several grooves 213 are formed on the outside of the sealing pipe 212, and a second sealing sleeve is sleeved inside the grooves 213. The soft sleeve 214 and the sealing pipe 212 are movably snapped into the inside of the connector 11. The second sealing soft sleeve 214 is located between the outer side of the sealing pipe 212 and the inner wall of the connector 11. The first ring 211 is fixedly connected to the second ring 215 on one side. One end of the first sealing soft sleeve 12 is located in the inner wall of the second ring 215. The outer side of the connector 11 is fixedly connected to the third ring 113. The other end of the first sealing soft sleeve 12 is located on one side of the third ring 113.
[0025] The overall effect of this embodiment is that when the sealing pipe 212 at one end of the second pipe 2 is inserted into the interior of the connector 11, one end of the first sealing sleeve 12 on the outside of the connector 11 enters the inner wall of the second ring 215. The second ring 215 and the third ring 113 respectively limit the two ends of the first sealing sleeve 12, preventing the first sealing sleeve 12 from slipping off the upper end of the connector 11, so that the automotive air conditioning pipe connector structure can still provide a good sealing effect in a vibrating environment. At the same time, the first sealing sleeve 12 is squeezed in the gap between the second ring 215 and the first ring 211. When the second sealing sleeve 214 ages and is damaged, even if the coolant can pass through the gap between the sealing pipe 212 and the connector 11, it will still be blocked by the first sealing sleeve 12 when passing through the gap between the second ring 215 and the first ring 211, thereby achieving a multi-layer sealing effect.
[0026] The usage and working principle of this device are as follows: When connecting pipe 1 and pipe 2, first, the first sealing sleeve 12 needs to be fitted onto one end of the connector 11. Then, the sealing pipe 212 at one end of pipe 2 is inserted into the connector 11. At the same time, the four screws 111 at one end of the connector 11 pass through the four holes 216 of the first ring 211. The second sealing sleeve 214, fitted onto the outside of the sealing pipe 212, is secured in the gap between the sealing pipe 212 and the connector 11. Then, rotate the nut 11. 2. Pipe No. 1 and Pipe No. 2 are stably connected to each other. When the sealing pipe 212 at one end of Pipe No. 2 is inserted into the interior of connector 11, one end of the sealing sleeve 12 on the outside of connector 11 enters the inner wall of the ring 215. The ring 215 and the ring 3 respectively limit the two ends of the sealing sleeve 12 to prevent the sealing sleeve 12 from slipping off the top of connector 11, so that the automotive air conditioning pipe connector structure can still provide a good sealing effect in a vibrating environment.
[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A structure for connecting automotive air conditioning pipes, comprising a first pipe (1) and a second pipe (2), characterized in that: One end of the first pipe (1) is fixedly connected to a connector (11), and a first sealing sleeve (12) is movably sleeved on the outside of the connector (11). One end of the second pipe (2) is fixedly connected to a sealing limiting component (21), which includes a first ring (211) and a sealing pipe (212). Several slots (213) are opened on the outside of the sealing pipe (212), and a second sealing sleeve (214) is sleeved inside the several slots (213). One end of the sealing pipe (212) is movably clamped inside the connector (11), and the second sealing sleeve (214) is disposed between the outside of the sealing pipe (212) and the inner wall of the connector (11).
2. The automotive air conditioning pipe connector structure according to claim 1, characterized in that: A second ring (215) is fixedly connected to one side of the first ring (211).
3. The automotive air conditioning pipe connector structure according to claim 2, characterized in that: One end of the first sealing sleeve (12) is disposed in the inner wall of the second ring (215).
4. The automotive air conditioning pipe connector structure according to claim 1, characterized in that: The outer side of the connector (11) is fixedly connected to a third ring (113), and the other end of the first sealing sleeve (12) is located on one side of the third ring (113).
5. The automotive air conditioning pipe connector structure according to claim 1, characterized in that: One end of the connector (11) is fixedly connected to several screws (111) in a ring arrangement. Several circular holes (216) are opened inside the first ring (211), and several screws (111) respectively move through the interior of several circular holes (216).
6. The automotive air conditioning pipe connector structure according to claim 5, characterized in that: One end of each of the screws (111) is threaded with a nut (112).