Automobile air conditioner pipeline structure
By introducing an inner pipe layer, sound-dampening pads, adaptive regulating valves, and flow sensors into the automotive air conditioning piping, noise and flow control issues were resolved, improving the performance and reliability of the air conditioning system and reducing maintenance costs.
Patent Information
- Application Number
- CN202520537291.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing automotive air conditioning piping systems generate noise during refrigerant flow, affecting the comfort of drivers and passengers. Furthermore, the lack of effective flow control capabilities leads to decreased energy efficiency and increased maintenance costs.
It adopts high-pressure air conditioning pipes, inner pipe layers, sound-absorbing pads, adaptive regulating valves and high-precision flow sensors to enhance pipe rigidity, reduce noise and monitor flow in real time, and control flow through adaptive regulating valves.
It improves the overall performance of the air conditioning system, reduces noise impact, enhances system reliability and stability, and reduces maintenance costs.
Smart Images

Figure CN223740349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive air conditioning pipelines, specifically to an automotive air conditioning pipeline structure. Background Technology
[0002] The automotive air conditioning piping is a key component of the automotive air conditioning system. It is responsible for connecting the various major components of the air conditioning system to achieve orderly operation. The working principle of the automotive air conditioning piping is to use the physical changes of refrigerant in the piping, such as compression, condensation, expansion and evaporation, to achieve cooling and drying of the air inside the car. Specifically, the high-pressure piping is responsible for sending the high-temperature and high-pressure refrigerant compressed by the compressor out, releasing heat through the condenser, and then reducing pressure and cooling through the expansion valve. The low-pressure piping is responsible for sending the cooled, low-temperature and low-pressure refrigerant through the evaporator to absorb heat from the indoor air, achieving a cooling effect, and then returning to the compressor through the low-pressure piping to enter the circulation.
[0003] A search revealed an automotive air conditioning pipe structure with publication number CN209688319U. This structure includes a main pipe and a flange branch pipe vertically connected to the main pipe. One end of the flange branch pipe connects to the main pipe and has a locking groove that engages with the wall of the main pipe. The wall of the main pipe has a through hole communicating with the flange branch pipe. The flange branch pipe has double-ended studs for connecting to the mating flange pipe. This automotive air conditioning pipe structure is simple in structure, low in cost, easy to install and connect, and has good structural strength and stability, demonstrating strong practicality and promising application prospects.
[0004] Existing automotive air conditioning piping structures generate noise during use due to the refrigerant flowing within them. This noise directly impacts the comfort of the driver and passengers. Furthermore, the lack of effective refrigerant flow control leads to a decrease in energy efficiency, affecting the normal operation of the automotive air conditioning system. In the comparative case mentioned above, the automotive air conditioning piping structure also lacks noise reduction and flow control capabilities. Over long-term use, this will result in problems such as increased noise and reduced flow control accuracy, increasing maintenance costs.
[0005] Therefore, it is necessary to invent a new automotive air conditioning piping structure to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide an automotive air conditioning piping structure. Through a high-pressure air conditioning pipe, an inner pipe layer, a sound-absorbing pad, connecting pipes, an adaptive regulating valve, a second corrugated pipe, and a high-precision flow sensor, this automotive air conditioning piping structure achieves noise reduction and flow control capabilities. By enhancing pipe rigidity, reducing noise, real-time flow monitoring, and adaptive flow control, the overall performance of the automotive air conditioning system is comprehensively improved. This not only makes the air conditioning system more efficient and energy-saving but also improves its reliability and stability, providing a more comfortable in-vehicle environment for drivers and passengers. Furthermore, it reduces noise and flow issues in the automotive air conditioning piping structure over long-term use. The reduced accuracy of control reduces maintenance costs and addresses the issue that existing automotive air conditioning piping structures generate noise during operation due to refrigerant flow. This noise directly impacts the comfort of drivers and passengers. Furthermore, the lack of effective refrigerant flow control leads to decreased energy efficiency, affecting the normal operation of the air conditioning system. The aforementioned comparative case also lacks noise reduction and flow control capabilities. Over time, this results in noise and decreased flow control accuracy, increasing maintenance costs.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an automotive air conditioning pipeline structure, including an air conditioning high-pressure pipeline, which is the main body for the circulation of automotive air conditioning refrigerant;
[0008] An inner pipe layer covers the inside of the air conditioning high-pressure pipe to enhance the rigidity of the pipe. A sound-absorbing pad is fixedly installed on the outside of the inner pipe layer. A threaded pipe head is fixedly installed at the rear end of the air conditioning high-pressure pipe. A first mating flange is fixedly installed on the outside of the threaded pipe head.
[0009] Fastening bolts penetrate the outside of the first mating flange and are used to thread a connection to the second mating flange. A first bellows is fixedly installed inside the second mating flange. A connecting pipe is fixedly connected to the other end of the first bellows. An adaptive regulating valve is fixedly installed at the other end of the connecting pipe. A high-precision flow sensor is fixedly installed inside the connecting pipe.
[0010] Preferably, the air conditioning high-pressure pipe is externally fixedly installed with an external fixing bracket, and a reinforcing plate is fixedly installed on the top of the external fixing bracket.
[0011] Preferably, a double-ended bolt passes through the top of the reinforcing plate, and an equipment component inlet is provided on the outside of the air conditioning high-pressure pipe.
[0012] Preferably, the number of the sound-absorbing pads is set to multiple, and the multiple sound-absorbing pads are distributed in a ring array on the inner pipe layer.
[0013] Preferably, the first bellows is threadedly connected to the threaded pipe head, and the fastening bolts are evenly distributed on the first mating flange.
[0014] Preferably, a second bellows is fixedly installed at the rear end of the adaptive regulating valve, and the other end of the second bellows is fixedly connected to an air conditioning low-pressure pipe.
[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0016] This utility model includes an air conditioning high-pressure pipe, an inner pipe layer, a sound-absorbing pad, a connecting pipe, an adaptive regulating valve, a second corrugated pipe, and a high-precision flow sensor. When using this automotive air conditioning piping structure, the inner pipe layer inside the high-pressure pipe not only enhances the rigidity of the automotive air conditioning piping structure itself, but the sound-absorbing pad outside the inner pipe layer also absorbs the noise generated during refrigerant flow, reducing the impact of noise on the driver and passengers. Then, when the refrigerant flows inside the automotive air conditioning piping structure, the high-precision flow sensor in the connecting pipe monitors the internal flow in real time and reflects it to the external automotive air conditioning system. This allows the internal refrigerant flow rate to be controlled via an adaptive regulating valve based on current usage needs. This gives the automotive air conditioning piping structure noise reduction and flow control capabilities. By enhancing pipe rigidity, reducing noise, monitoring flow in real time, and implementing adaptive flow control, the overall performance of the automotive air conditioning system is comprehensively improved. This not only makes the air conditioning system more efficient and energy-saving but also improves its reliability and stability, providing a more comfortable in-car environment for drivers and passengers. Over long-term use, it also reduces the probability of problems such as noise and decreased flow control accuracy in the automotive air conditioning piping structure, thus reducing maintenance costs. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the inner pipe layer structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal threaded sleeve structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the adaptive regulating valve structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the high-precision flow sensor structure of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. High-pressure air conditioning pipe; 2. External fixing bracket; 3. Reinforcing plate; 4. Double-ended bolt; 5. Equipment component inlet; 6. Inner pipe layer; 7. Sound-absorbing pad; 8. Threaded pipe end; 9. First mating flange; 10. Fastening bolt; 11. Second mating flange; 12. First corrugated pipe; 13. Connecting pipe; 14. Adaptive regulating valve; 15. Second corrugated pipe; 16. Low-pressure air conditioning pipe; 17. High-precision flow sensor. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0026] This utility model provides, for example Figure 1-5 The diagram shows an automotive air conditioning piping structure, including an air conditioning high-pressure pipe 1, which is the main body for the flow of automotive air conditioning refrigerant.
[0027] The inner pipe layer 6 covers the inside of the air conditioning high-pressure pipe 1 to strengthen the rigidity of the pipe. The outer side of the inner pipe layer 6 is fixedly installed with a sound-absorbing pad 7. The rear end of the air conditioning high-pressure pipe 1 is fixedly installed with a threaded pipe head 8. The outer side of the threaded pipe head 8 is fixedly provided with a first mating flange 9.
[0028] Fastening bolt 10 passes through the outside of the first mating flange 9 and is used to thread the second mating flange 11. The second mating flange 11 is fixedly installed with a first bellows 12. The other end of the first bellows 12 is fixedly connected to a connecting pipe 13. The other end of the connecting pipe 13 is fixedly installed with an adaptive regulating valve 14. The connecting pipe 13 is fixedly installed with a high-precision flow sensor 17.
[0029] like Figure 1 and Figure 2As shown, an external fixing bracket 2 is fixedly installed on the outside of the air conditioning high-pressure pipe 1. A reinforcing plate 3 is fixedly installed on the top of the external fixing bracket 2. The external fixing bracket 2 is used to assist in fixing the car air conditioning pipe structure to the car interior. A double-headed bolt 4 passes through the top of the reinforcing plate 3. An equipment component inlet 5 is opened on the outside of the air conditioning high-pressure pipe 1. The equipment component inlet 5 is used to assist in installing equipment components such as compressors and condensers on the car air conditioning pipe structure, so as to use the car air conditioning pipe. The number of sound-absorbing pads 7 is set to multiple. Multiple sound-absorbing pads 7 are distributed in a ring array on the inner pipe layer 6. An inner pipe layer 6 is set inside the air conditioning high-pressure pipe 1, which can not only enhance the rigidity of the car air conditioning pipe structure itself, but also the sound-absorbing pads 7 on the outside of the inner pipe layer 6 can absorb the noise generated when the refrigerant flows, reducing the impact of noise on the driver and passengers.
[0030] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the first corrugated pipe 12 is threadedly connected to the threaded pipe head 8, and the fastening bolts 10 are evenly distributed on the first mating flange 9. The first mating flange 9 and the second mating flange 11 are used to enhance the stability of the connection between the threaded pipe head 8 and the first corrugated pipe 12 and ensure the normal use of the automotive air conditioning pipeline structure. The rear end of the adaptive regulating valve 14 is fixedly installed with a second corrugated pipe 15, and the other end of the second corrugated pipe 15 is fixedly connected to the air conditioning low-pressure pipe 16. The second corrugated pipe 15 is used to assist the air conditioning low-pressure pipe 16, and the position of the air conditioning low-pressure pipe 16 can be adjusted according to the current structural layout of the vehicle.
[0031] The working principle of this practical system is as follows: First, the automotive air conditioning pipe structure is taken out. The high-pressure air conditioning pipe 1 is installed in the vehicle interior using the external mounting bracket 2. Then, the fastening bolts 10 are tightened, and the high-pressure air conditioning pipe 1 is connected to the low-pressure air conditioning pipe 16 via the first and second connecting flanges 9 and 11. The first and second connecting flanges 9 and 11 are used to enhance the stability of the connection between the threaded pipe end 8 and the first corrugated pipe 12. Simultaneously, the position of the low-pressure air conditioning pipe 16 inside the vehicle can be adjusted via the first and second corrugated pipes 12 and 15. Next, the compressor and condenser are installed into the automotive air conditioning pipe structure via the equipment component inlet 5, thus enabling the use of the automotive air conditioning pipe system. In this way, when using the automotive air conditioning pipe structure, an inner pipe layer 6 is installed inside the high-pressure air conditioning pipe 1, which not only enhances the rigidity of the automotive air conditioning pipe structure itself, but also... The sound-absorbing pads 7 on the outside of the duct layer 6 can also absorb the noise generated during refrigerant flow, reducing the impact of noise on the driver and passengers. Then, when the refrigerant flows inside the automotive air conditioning pipe structure, the high-precision flow sensor 17 in the connecting pipe 13 will monitor the internal flow in real time and reflect it to the external automotive air conditioning system. In this way, according to the current usage requirements, the internal refrigerant flow rate can be controlled by the adaptive regulating valve 14. This gives the automotive air conditioning pipe structure the ability to reduce noise and control flow. By enhancing pipe rigidity, reducing noise, monitoring flow in real time, and adaptive flow control, the overall performance of the automotive air conditioning system is comprehensively improved. Finally, after completing the installation and use of the entire automotive air conditioning pipe structure according to the above operations, normal maintenance can be performed on the structure in daily life. In this way, the use process of the automotive air conditioning pipe structure is completed.
[0032] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A structure for automotive air conditioning piping, characterized in that: The utility model relates to air conditioner high pressure pipeline (1) for automobile air conditioner refrigerant flow circulation main part, The inner pipeline layer (6) is covered in the air conditioner high pressure pipeline (1), is used for strengthening the rigidity of pipeline, and the outside fixed mounting of inner pipeline layer (6) has the sound-absorbing mat strip (7), the rear end fixed mounting of air conditioner high pressure pipeline (1) has the threaded pipe head (8), the outside fixed setting of threaded pipe head (8) has the first butt flange (9), The fastening bolt (10) is penetrated in the outside of first butt flange (9), is used for the threaded connection of second butt flange (11), and the inside fixed mounting of second butt flange (11) has the first bellow (12), the other end fixed connection of first bellow (12) has the connecting pipeline (13), the other end fixed mounting of connecting pipeline (13) has the self -adaptation regulating valve (14), the inside fixed mounting of connecting pipeline (13) has the flow high accuracy sensor (17). The outside fixed mounting of air conditioner high pressure pipeline (1) has the outer fixed frame (2), the upper fixed setting of outer fixed frame (2) has the reinforcing sheet (3).
2. The automobile air conditioning piping structure according to claim 1, characterized by: The upper penetration of reinforcing sheet (3) has the stud bolt (4), and the outside of air conditioner high pressure pipeline (1) is provided with equipment assembly access (5).
3. The automotive air conditioning piping structure according to claim 2, characterized by: The number of sound-absorbing mat strips (7) is multiple, and multiple sound-absorbing mat strips (7) are arranged in an annular array on the inner pipeline layer (6).
4. The structure of claim 1, wherein: The first bellow (12) is screwed with the threaded pipe head (8), and the fastening bolt (10) is distributed at equal intervals on the first butt flange (9).
5. The structure of claim 1, wherein: The rear end of self -adaptation regulating valve (14) is fixedly installed with the second bellow (15), and the other end of second bellow (15) is fixedly connected with air conditioner low pressure pipeline (16).
6. The structure of claim 1, wherein:
Citation Information
Patent Citations
Automobile air conditioner pipeline structure
CN209688319U