Refrigeration pipeline assembly for refrigeration of automobile air conditioner

By designing structural components such as limit plugs, support seats, adapters, and adapter housings, the problem of easy breakage at the connection between the refrigeration pipe and the condenser is solved, achieving stable connection of the refrigeration pipe and refrigerant delivery when the vehicle is shaking.

CN223835355UActive Publication Date: 2026-01-27NANTONG MINGDA AUTOMOBILE AIR CONDITIONING CO LTD
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Patent Information

Application Number
CN202520612112.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-01-27
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

In the existing technology, the fixed connection between the refrigeration pipe and the condenser makes the refrigeration pipe prone to breakage when the vehicle shakes, affecting the normal use of the car.

Method used

The design incorporates a limit plug, a retaining seat, a retaining component, an adapter body, and an adapter housing. Through the cooperation of the adapter body and the adapter housing, the outer tube of the refrigeration pipe is allowed to rotate under stress, with sufficient rotation range provided to prevent breakage. Furthermore, the stability is enhanced and wear is reduced through rubber rings and steel cords.

Benefits of technology

It effectively prevents the connection between the refrigerant pipe and the condenser from breaking under external force, ensuring the normal delivery of refrigerant and improving the stability and service life of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile refrigeration pipes, and particularly relates to a refrigeration pipeline assembly for automobile air conditioner refrigeration, which comprises a refrigeration pipe outer pipe and a connecting pipe II, a limiting plug is arranged on the refrigeration pipe outer pipe, an abutting seat is fixedly mounted on the connecting pipe II, an abutting component is arranged on the abutting seat, and the abutting component is fixedly mounted on the connecting pipe II. An adapter body is fixedly arranged at one end of the second connecting pipe, an external thread is arranged at the end, away from the adapter body, of the second connecting pipe, a through hole is formed in the adapter body in a penetrating mode, and the through hole communicates with the second connecting pipe; an enough rotation range can be reserved between the outer pipe of the refrigeration pipe and the condenser, the situation that the outer pipe of the refrigeration pipe and the condenser are broken when external force is applied to the outer pipe of the refrigeration pipe and the condenser is prevented, the adapter shell is used for being matched with the adapter body, the adapter shell is arranged on the outer side of the adapter body in a sleeving mode, and the circumferential rotation range can be achieved; therefore, it is guaranteed that the device cannot be broken in the using process.
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Description

Technical Field

[0001] This utility model relates to the field of automotive refrigeration pipe technology, specifically a refrigeration pipe assembly for automotive air conditioning. Background Technology

[0002] Automotive refrigerant pipes are an important component of automotive air conditioning systems. They are mainly used for the circulation of refrigerant, completing heat transfer and exchange. Their main task is to transport the refrigerant, ensuring that the refrigerant can circulate between the compressor, condenser, expansion valve, and evaporator, thereby achieving the cooling effect.

[0003] However, after the refrigeration pipe is connected to the condenser, the movement of the vehicle causes the refrigeration pipe to shake, resulting in changes in the angle between the condenser and the refrigeration pipe. In the prior art, the refrigeration pipe and the condenser are generally fixedly connected. Under long-term shaking, the connection between the refrigeration pipe and the condenser is prone to breakage, affecting the normal use of the car. Therefore, a refrigeration pipe assembly for automotive air conditioning is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a refrigeration piping assembly for automotive air conditioning.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A refrigeration pipe assembly for automotive air conditioning includes an outer refrigeration pipe and a second connecting pipe. A limit plug is provided on the outer refrigeration pipe. A support seat is fixedly installed on the second connecting pipe, and a support component is provided on the support seat. An adapter is fixedly provided at one end of the second connecting pipe. An external thread is provided at the end of the second connecting pipe away from the adapter. A through hole is provided through the adapter, communicating with the second connecting pipe. An adapter shell is fitted onto the outer side of the adapter. A large-diameter connecting pipe is fixedly installed at the end of the housing away from the adapter. The adapter allows sufficient rotation range between the outer tube of the refrigeration pipe and the condenser when the outer tube is subjected to external force, preventing breakage of the outer tube and the condenser under external force. The through hole is used to load the flexible hose inside the outer tube of the refrigeration pipe to ensure normal delivery of refrigerant. The adapter housing is used to cooperate with the adapter and is sleeved on the outside of the adapter, allowing for circumferential rotation, thus ensuring that the device will not break during use.

[0006] Preferably, a ball groove is provided on the inner side of the adapter housing, and the adapter body is embedded in the inner side of the ball groove to prevent the connection tube two and the outer tube of the refrigeration tube from breaking under external force.

[0007] Preferably, a rotating groove is provided on the inner side of the large-diameter connecting pipe, and a connecting pipe is fixedly installed at the end of the large-diameter connecting pipe away from the adapter housing. An internal thread is provided on the inner side of the end of the connecting pipe away from the large-diameter connecting pipe, and the internal thread is connected to the outer pipe of the refrigeration pipe. The radius of the rotating groove is larger than the inner diameter of the connecting pipe. The rotating groove ensures that the adapter body will not excessively squeeze the hose inside during the rotation inside the ball groove.

[0008] Preferably, the supporting assembly includes a rubber ring fitted on the side of the supporting seat near the adapter body. The inner side of the rubber ring is provided with interwoven steel cords. When the outer tube of the refrigeration pipe is subjected to external force and its angle changes, the outer tube of the refrigeration pipe drives the connecting pipe to rotate together. The connecting pipe drives the large-diameter connecting pipe to rotate together, and the large-diameter connecting pipe drives the adapter housing to rotate together on the outside of the adapter body. During the rotation of the adapter housing inside the ball groove, the adapter housing outside the ball groove continuously collides with the rubber ring. The rubber ring provides cushioning during the collision, reducing wear between the adapter housing and the supporting seat. Simultaneously, the supporting seat on the outside of the connecting pipe enhances the stability between the connecting pipe and the adapter housing, reducing the possibility of the connecting pipe breaking. The steel cords enhance the toughness and elasticity of the rubber ring, ensuring its stable performance.

[0009] Preferably, a collision pad is fixedly installed on the side of the adapter housing near the adapter body. The collision pad corresponds to the rubber ring. The collision pad can play a wear-resistant role when the rubber ring collides with the adapter housing, thereby improving the service life of the rubber ring.

[0010] Preferably, a curved plate is fixedly installed on the side of the abutment away from the rubber ring to further improve the stability of the second connecting pipe.

[0011] The advantages of this utility model are:

[0012] 1. This utility model uses a support seat to load the support component. When the support seat and the support component rotate between the connecting pipe and the adapter housing, the angle between the connecting pipe and the adapter housing remains within a certain range, thus preventing breakage under rotational force. The adapter body allows sufficient rotation range between the outer tube of the refrigeration pipe and the condenser when the outer tube is subjected to external force, preventing breakage between the outer tube and the condenser under external force. The through hole is used to load the flexible hose inside the outer tube of the refrigeration pipe, ensuring normal refrigerant delivery. The adapter housing is used to cooperate with the adapter body and is sleeved on the outside of the adapter body, allowing for circumferential rotation, thus ensuring that the device will not break during use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the adapter structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the steel cord structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the adapter housing structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the adapter housing of this utility model.

[0019] In the diagram: 1. Refrigeration pipe outer tube; 2. Limiting screw plug; 3. Connecting pipe one; 4. Internal thread; 5. Large diameter connecting pipe; 6. Rotating groove; 7. Adapter housing; 8. Ball groove; 9. Adapter body; 10. Through hole; 11. Connecting pipe two; 12. External thread; 13. Support seat; 14. Curved plate; 15. Rubber ring; 16. Steel cord; 17. Collision pad. Detailed Implementation

[0020] 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 scope of protection of the present utility model.

[0021] Specific implementation examples are given below.

[0022] Please see Figure 1-5As shown, a refrigeration piping assembly for automotive air conditioning includes an outer refrigeration pipe 1 and a second connecting pipe 11. A limit plug 2 is provided on the outer refrigeration pipe 1. A support seat 13 is fixedly installed on the second connecting pipe 11. A support component is provided on the support seat 13. An adapter body 9 is fixedly provided at one end of the second connecting pipe 11. An external thread 12 for connecting a condenser is provided at the end of the second connecting pipe 11 away from the adapter body 9. A through hole 10 is provided through the adapter body 9 and communicates with the second connecting pipe 11. An adapter housing 7 is sleeved on the outside of the adapter body 9. A large-diameter connecting pipe 5 is fixedly provided at the end of the adapter housing 7 away from the adapter body 9.

[0023] During operation, the refrigerant is transported through the outer pipe 1 of the refrigeration pipe to achieve the cooling of the car engine. The external thread 12 on the connecting pipe 11 is used to connect to the vehicle's condenser. The outer pipe 1 of the refrigeration pipe can also be connected to the compressor. The car condenser and compressor described here are existing technologies and will not be described in detail in this article.

[0024] The abutment seat 13 is used to load the abutment assembly. When the abutment seat 13 and the abutment assembly rotate between the connecting pipe 11 and the adapter housing 7, the angle between the connecting pipe 11 and the adapter housing 7 is maintained within a certain range, thereby preventing breakage under rotational force. The adapter body 9 allows sufficient rotation range between the outer tube 1 of the refrigeration pipe and the condenser when the outer tube 1 of the refrigeration pipe is subjected to external force, preventing breakage between the outer tube 1 of the refrigeration pipe and the condenser under external force. The through hole 10 is used to load the hose inside the outer tube 1 of the refrigeration pipe. The hose described here is the filling tube inside the outer tube 1 of the refrigeration pipe for conveying refrigerant, ensuring normal refrigerant delivery. The adapter housing 7 is used to cooperate with the adapter body 9. The adapter housing 7 is sleeved on the outside of the adapter body 9, allowing for circumferential rotation, thereby ensuring that the device will not break during use.

[0025] Furthermore, such as Figure 2 and Figure 5 As shown, a ball groove 8 is provided on the inner side of the adapter housing 7, and the adapter body 9 is embedded in the inner side of the ball groove 8;

[0026] During operation, the ball groove 8 is used for embedding the adapter 9, which allows the adapter 9 to have a circumferential rotation range inside the ball groove 8, thereby preventing the connection tube 11 and the outer tube 1 of the refrigeration tube from breaking under external force.

[0027] Furthermore, such as Figure 5As shown, a rotating groove 6 is provided on the inner side of the large-diameter connecting pipe 5. A connecting pipe 3 is fixedly installed at the end of the large-diameter connecting pipe 5 away from the adapter housing 7. An internal thread 4 is provided on the inner side of the end of the connecting pipe 3 away from the large-diameter connecting pipe 5. The internal thread 4 is connected to the outer pipe 1 of the refrigeration pipe. The radius of the rotating groove 6 is larger than the inner diameter of the connecting pipe 3.

[0028] During operation, the adapter 9 is embedded in the ball groove 8, allowing the adapter 9 to rotate within a circumferential range inside the ball groove 8. When the outer tube 1 of the refrigeration pipe is subjected to an external force and its angle changes, the outer tube 1 of the refrigeration pipe drives the connecting pipe 3 to rotate together, the connecting pipe 3 drives the large-diameter connecting pipe 5 to rotate together, and the large-diameter connecting pipe 5 drives the adapter housing 7 to rotate together outside the adapter 9. The rotating groove 6 ensures that the adapter 9 will not excessively compress the hose inside the ball groove 8 during its rotation. This hose is a hose installed inside the outer tube 1 of the refrigeration pipe and is used to transport refrigerant. It is connected to the outer tube 1 of the refrigeration pipe through the internal thread 4.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, the abutment assembly includes a rubber ring 15 fitted on the side of the abutment seat 13 near the adapter 9, and interwoven steel cords 16 are provided on the inner side of the rubber ring 15.

[0030] During operation, when the outer tube 1 of the refrigeration pipe is subjected to an external force and its angle changes, the outer tube 1 of the refrigeration pipe drives the connecting tube 3 to rotate together. The connecting tube 3 drives the large-diameter connecting tube 5 to rotate together. The large-diameter connecting tube 5 drives the adapter housing 7 to rotate together on the outside of the adapter body 9. During the rotation of the adapter housing 7 inside the ball groove 8, the adapter housing 7 outside the ball groove 8 continuously collides with the rubber ring 15. The rubber ring 15 provides cushioning during the collision, reducing the wear between the adapter housing 7 and the support seat 13. At the same time, the support seat 13 on the outside of the connecting tube 11 enhances the stability between the connecting tube 11 and the adapter housing 7, reducing the occurrence of the connecting tube 11 breaking. The steel cord 16 enhances the toughness and elasticity of the rubber ring 15, ensuring the stable performance of the rubber ring 15.

[0031] Furthermore, such as Figure 1 and Figure 2 As shown, a collision pad 17 is fixedly installed on the side of the adapter housing 7 near the adapter body 9, and the collision pad 17 corresponds to the rubber ring 15.

[0032] During operation, the collision pad 17 can prevent wear when the rubber ring 15 collides with the adapter housing 7, thus extending the service life of the rubber ring 15.

[0033] Furthermore, such as Figure 1 and Figure 2 As shown, a curved plate 14 is fixedly installed on the side of the abutment 13 away from the rubber ring 15;

[0034] During operation, the curved plate 14 is used to distribute the force on the support seat 13. When the adapter housing 7 and the adapter body 9 rotate, the support seat 13 drives the rubber ring 15 to continuously change direction and generate impact as it rotates. The curved plate 14 can increase the force-bearing area of ​​the support seat 13, thereby further improving the stability of the connecting pipe 11.

[0035] The working principle is as follows: the abutment seat 13 is used to load the abutment component. When the abutment seat 13 and the rubber ring 15 rotate between the connecting pipe 11 and the adapter housing 7, the angle between the connecting pipe 11 and the adapter housing 7 is maintained within a certain range, thereby preventing breakage under rotational force. The adapter body 9 allows sufficient rotation range between the adapter housing 7 and the adapter body 9 when the outer tube 1 of the refrigeration pipe is subjected to external force, preventing breakage between the outer tube 1 of the refrigeration pipe and the condenser under external force. The adapter housing 7 is used to cooperate with the adapter body 9. The adapter housing 7 is sleeved on the outside of the adapter body 9, which can realize a circumferential rotation range, thereby ensuring that the device will not break during use.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A refrigeration piping assembly for automotive air conditioning, comprising an outer refrigeration pipe (1) and a connecting pipe (11), wherein a limiting plug (2) is provided on the outer refrigeration pipe (1), characterized in that: A support seat (13) is fixedly installed on the second connecting pipe (11). A support component is provided on the support seat (13). A converter body (9) is fixedly provided at one end of the second connecting pipe (11). An external thread (12) is provided at the end of the second connecting pipe (11) away from the converter body (9). A through hole (10) is provided through the converter body (9). The through hole (10) is connected to the second connecting pipe (11). A converter housing (7) is sleeved on the outside of the converter body (9). A large-diameter connecting pipe (5) is fixedly provided at the end of the converter housing (7) away from the converter body (9).

2. The refrigeration piping assembly for automotive air conditioning according to claim 1, characterized in that: The inner side of the adapter housing (7) is provided with a ball groove (8), and the adapter body (9) is embedded in the inner side of the ball groove (8).

3. The refrigeration piping assembly for automotive air conditioning according to claim 2, characterized in that: The inner side of the large-diameter connecting pipe (5) is provided with a rotating groove (6). A connecting pipe (3) is fixedly installed at the end of the large-diameter connecting pipe (5) away from the adapter housing (7). An internal thread (4) is provided on the inner side of the end of the connecting pipe (3) away from the large-diameter connecting pipe (5). The internal thread (4) is connected to the outer pipe (1) of the refrigeration pipe. The radius of the rotating groove (6) is greater than the inner diameter of the connecting pipe (3).

4. A refrigeration piping assembly for automotive air conditioning according to claim 3, characterized in that: The abutment assembly includes a rubber ring (15) fitted on the side of the abutment seat (13) near the adapter (9), and the inner side of the rubber ring (15) is provided with interwoven steel cords (16).

5. A refrigeration piping assembly for automotive air conditioning according to claim 4, characterized in that: The adapter housing (7) is fixedly installed with a collision pad (17) on the side near the adapter body (9), and the collision pad (17) corresponds to the rubber ring (15).

6. A refrigeration piping assembly for automotive air conditioning according to claim 5, characterized in that: A curved plate (14) is fixedly installed on the side of the abutment (13) away from the rubber ring (15).