A connecting structure of an automobile air conditioner pipe

Abstract

The application discloses a connecting structure of an automobile air conditioner pipe, which comprises a connecting seat and a pipe body sleeved with the connecting seat, wherein the pipe body comprises a hard pipe, an air inlet thin pipe and an air outlet thin pipe; the air inlet thin pipe is communicated with the hard pipe; the air outlet thin pipe extends to outside of the connecting seat; one end of the hard pipe arranged in the connecting seat is provided with an adapter; the adapter is provided with a hollow pipe wall and a plurality of ring grooves; a sealing ring is arranged in each ring groove; the connecting positions of the air inlet thin pipe and the air outlet thin pipe with the adapter are arranged between adjacent sealing rings; and the air inlet thin pipe and the air outlet thin pipe are communicated with the hollow pipe wall. The connecting structure is provided with a plurality of sealing rings, has high sealing performance, can prevent water vapor from leaking, and thus improves the refrigeration and heating capacity of the air conditioner.

Description

Technical Field

[0001] This invention relates to automotive air conditioning pipes, and more particularly to a connection structure for automotive air conditioning pipes. Background Technology

[0002] Modern cars generally have air conditioning systems, which have air conditioning pipes. These pipes are usually connected to corresponding components (compressors or evaporators) through connecting structures. However, gaps are inevitable when connecting these structures to various components, or there may be weld seams during welding. This can lead to moisture leakage from the air conditioning pipes, resulting in a decrease in the air conditioning's cooling and heating capacity, or even a short circuit. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a connection structure for automotive air conditioning pipes, which is provided with multiple sealing rings, has strong sealing performance, and can prevent water vapor leakage, thereby improving the cooling and heating capacity of the air conditioner.

[0004] To achieve the above objectives, the following technical solution is proposed: A connection structure for an automotive air conditioning pipe includes a connector and a pipe body sleeved with the connector. The pipe body includes a rigid pipe, an intake capillary pipe, and an outlet capillary pipe. The intake capillary pipe communicates with the rigid pipe, and the outlet capillary pipe extends outside the connector. An adapter is provided at one end of the rigid pipe inside the connector. The adapter has a hollow pipe wall and multiple annular grooves. A sealing ring is provided in each annular groove. The connection points of the intake capillary pipe and the outlet capillary pipe with the adapter are all located between adjacent sealing rings. Both the intake capillary pipe and the outlet capillary pipe communicate with the hollow pipe wall.

[0005] Preferably, there are three sealing rings, which are arranged parallel to each other in multiple annular grooves.

[0006] Preferably, all three sealing rings are elastic sealing rings, and the diameter of each of the three elastic sealing rings is larger than the diameter of the annular groove.

[0007] Preferably, the rigid tube further includes a sealing ring, which is disposed at the upper end of the adapter and fits against the surface of the connector.

[0008] Preferably, the connection structure further includes a positioning insert for positioning the tube body, the positioning insert being inserted through the connection seat and engaging with the tube body.

[0009] Preferably, the lower end of the positioning plate is provided with a U-shaped hole, and the positioning plate is engaged with the tube body through the U-shaped hole.

[0010] Preferably, the connector includes a base and a mounting groove disposed on the base, and through slots are provided on both sides of the mounting groove, through which the positioning insert passes through the connector.

[0011] Preferably, the connection structure further includes a positioning plate, which is disposed in the mounting groove. The positioning plate is provided with a through hole and a mounting hole, and the rigid tube passes through the through hole and is inserted into the base.

[0012] Preferably, the tube body further includes a transition tube, which is an L-shaped tube. One end of the L-shaped tube is connected to the rigid tube, and the other end of the L-shaped tube is connected to the intake capillary tube.

[0013] Preferably, the tube body further includes a flexible tube connected to the end of the rigid tube away from the connector.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The connection structure disclosed in this application includes a pipe body, which comprises a rigid pipe, an inlet capillary pipe, and an outlet capillary pipe. One end of the rigid pipe, which is located within the connector, is provided with an adapter. The adapter has a hollow pipe wall and multiple annular grooves, each containing a sealing ring. The inlet capillary pipe and the outlet capillary pipe are positioned between adjacent sealing rings, thereby preventing moisture leakage at the connection between the inlet capillary pipe and the outlet capillary pipe and the adapter, thus improving sealing performance and enhancing cooling and heating capabilities.

[0015] In addition, the smaller diameter of the inlet capillary tube and the outlet capillary tube compared to the diameter of the rigid tube can increase the flow rate of water vapor inside the rigid tube, thereby further enhancing the cooling and heating capabilities. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the connection structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the connection structure of the present invention from another angle; Figure 3 This is a schematic diagram of the planar structure of the connection structure of the present invention; Figure 4 for Figure 3 Sectional view at point AA; Figure 5 This is a three-dimensional structural diagram of the connector of the present invention; Figure 6 This is a three-dimensional structural diagram of the positioning insert plate of the present invention; Figure 7 This is a three-dimensional structural diagram of the rigid tube of the present invention.

[0017] In the diagram: 10. Connecting seat; 11. Seat body; 111. Air outlet; 12. Mounting groove; 121. Through groove; 20. Pipe body; 21. Rigid pipe; 22. Flexible pipe; 23. Adapter; 231. Annular groove; 232. Hollow pipe wall; 24. Sealing ring; 25. Transition pipe; 26. Sealing ring; 27. Inlet capillary tube; 28. Outlet capillary tube; 30. Positioning insert plate; 31. U-shaped hole; 32. Slot; 40. Positioning plate; 41. Through hole; 42. Mounting hole. Detailed Implementation

[0018] To better understand the specific technical solutions, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] like Figures 1-4 As shown, the present invention discloses a connection structure for an automotive air conditioning pipe, including a connector 10 and a pipe body 20 sleeved with the connector 10. The pipe body 20 includes a rigid pipe 21, an intake capillary pipe 27, and an exhaust capillary pipe 28. The intake capillary pipe 27 communicates with the rigid pipe 21. The exhaust capillary pipe 28 extends to the outside of the connector 10 to form an exhaust port 111. One end of the rigid pipe 21, which is located inside the connector 10, is provided with an adapter 23. The adapter 23 is provided with a hollow pipe wall 232 and a plurality of annular grooves 231. Each annular groove 231 is provided with a sealing ring 26. The connection points of the intake capillary pipe 27 and the exhaust capillary pipe 28 with the adapter 23 are all located between adjacent sealing rings 26. The intake capillary pipe 27 and the exhaust capillary pipe 28 are both communicated with the hollow pipe wall 232.

[0021] In the above embodiments, the connection structure disclosed in this application includes a pipe body 20, which includes a rigid pipe 21, an inlet capillary pipe 27, and an outlet capillary pipe 28. One end of the rigid pipe 21, which is located in the connecting seat 10, is provided with an adapter 23. The adapter 23 is provided with a hollow pipe wall 232 and multiple annular grooves 231. Each annular groove 231 is provided with a sealing ring 26. The connection points of the inlet capillary pipe 27 and the outlet capillary pipe 28 with the adapter 23 are all located between adjacent sealing rings 26. Because welds or small holes can easily form at the connection points, adjacent sealing rings 26 can prevent gas leakage from these welds or small holes, and can prevent water vapor leakage at the connection points of the inlet capillary pipe 27 and the outlet capillary pipe 28 with the adapter 23, thereby improving the sealing performance and enhancing the cooling and heating capabilities. In addition, the diameters of the inlet capillary tube 27 and the outlet capillary tube 28 are smaller than the diameter of the rigid tube, which can increase the flow rate of water vapor in the rigid tube 21 and further enhance the cooling and heating capabilities.

[0022] The connector 10 also has a socket, into which the adapter 23 is inserted. The adapter 23 can also be threaded into the connector. The rigid tube can be a metal tube, a ceramic tube, or a plastic tube. The diameter of the inlet capillary tube 27 and the outlet capillary tube 28 is 1-5 mm, and the diameter of the rigid tube 21 is 10-40 mm.

[0023] like Figures 2-7 As shown, in a preferred embodiment, there are three sealing rings 26, which are arranged parallel to each other within a plurality of annular grooves 231. Preferably, all three sealing rings 26 are elastic sealing rings, and the diameter of each elastic sealing ring is larger than the diameter of the annular groove. Preferably, the rigid tube 21 further includes a sealing ring 24, which is disposed at the upper end of the adapter 23 and is in contact with the surface of the connecting seat 10.

[0024] In the above embodiment, the multiple annular grooves 231 are arranged in parallel, so that the sealing rings 26 within the multiple annular grooves 231 are arranged in parallel, thus ensuring that there are no gaps between the sealing rings and the inner wall of the (insertion hole) of the connecting seat 10. The elastic sealing rings are easy to install, and the elastic sealing rings can be rubber sealing rings or damping sealing rings. The diameters of the three elastic sealing rings are all larger than the diameter of the annular grooves 231, so that the elastic sealing rings can form an interference fit with the inner wall of the (insertion hole) of the connecting seat 10, thereby more tightly preventing gas leakage. The sealing ring 24 fits against the adapter 23 on the surface of the connecting seat 10, which can block the gap between the insertion hole and the adapter 23, further preventing moisture leakage.

[0025] like Figures 5-7As shown, in a preferred embodiment, the connecting structure further includes a positioning insert 30 for positioning the tube body 20, the positioning insert 30 passing through the connecting seat 10 and engaging with the tube body 20. Preferably, the lower end of the positioning insert 30 is provided with a U-shaped hole 31, through which the positioning insert 30 engages with the tube body 20. Preferably, the connecting seat 10 includes a seat body 11 and a mounting groove 12 provided on the seat body 11, with through slots 121 on both sides of the mounting groove 12, through which the positioning insert 30 passes through the connecting seat 10.

[0026] In the above embodiment, the positioning insert 30 positions the rigid tube 21 through the U-shaped hole 31, preventing the rigid tube 21 from shaking. To make the positioning insert 30 more stable, a slot 32 is provided at the lower end of the positioning insert, which engages with the side wall of the through groove 121. The mounting groove 12 is provided with an insertion hole that facilitates the insertion of the sleeve tube 20, and the adapter 23 is sleeved or threaded into the insertion hole. To facilitate the installation of the positioning insert 30, the positioning insert 30 is an elastic insert. During installation, simply pressing the elastic insert allows the positioning insert 30 to be easily inserted into the through groove 121; after releasing the pressure, the elastic insert fits tightly against the inner wall of the through groove 121 under the action of elasticity.

[0027] like Figures 2-7 As shown, in a preferred embodiment, the connecting structure further includes a positioning plate 40, which is disposed within the mounting groove 12. The positioning plate 40 has a through hole 41 and a mounting hole 42, through which the rigid tube 21 passes and is inserted into the base 11. Preferably, the tube body 20 further includes a transition tube 25 and a flexible tube 22. The transition tube 25 is an L-shaped tube, with one end connected to the rigid tube 21 and the other end connected to the air intake capillary tube 27. The flexible tube 22 is connected to the end of the rigid tube 21 away from the connecting base 10.

[0028] In the above embodiment, the positioning plate 40 further stabilizes the rigid pipe 21 and prevents moisture leakage from the seat 11. The through hole 41 communicates with the insertion hole, and the adapter 23 passes through the through hole 41 and the insertion hole to connect with the seat 11. The mounting hole 42 facilitates fixing the positioning plate 40, and the flexible hose 22 facilitates connection to other components of the automotive air conditioning system (compressor, etc.). The flexible hose 22 can be a rubber hose. Because the diameter of the intake capillary 27 is much smaller than the diameter of the rigid pipe 21, an L-shaped pipe serves as a transition pipe between the two to facilitate the flow of moisture from the rigid pipe 21 into the intake capillary 27. The L-shaped pipe is located inside the seat 11. To facilitate the transition, the end of the L-shaped pipe 25 connected to the rigid pipe 21 has a larger diameter, and the end of the L-shaped pipe 25 connected to the intake capillary 27 has a smaller diameter.

[0029] In summary, the connection structure of the automotive air conditioning pipe disclosed in this application prevents water vapor leakage by setting multiple sealing rings 26 at the annular groove 231 of the adapter 23, and the connection points of the intake capillary pipe 27 and the outlet capillary pipe 28 to the adapter 23 are all set between adjacent sealing rings 26. In addition, the diameters of the intake capillary pipe 27 and the outlet capillary pipe 28 are small, which can correspondingly increase the flow rate of water vapor, thereby improving the cooling and heating capacity of the automotive air conditioning.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure for an automotive air conditioning pipe, characterized in that: The device includes a connector and a tube body that fits into the connector. The tube body includes a rigid tube, an inlet capillary tube, and an outlet capillary tube. The inlet capillary tube communicates with the rigid tube, and the outlet capillary tube extends outside the connector. One end of the rigid tube, which is located inside the connector, is provided with an adapter. The adapter has a hollow tube wall and multiple annular grooves. Each annular groove contains a sealing ring. The connections between the inlet capillary tube and the outlet capillary tube and the adapter are located between adjacent sealing rings. Both the inlet capillary tube and the outlet capillary tube communicate with the hollow tube wall.

2. The connection structure according to claim 1, characterized in that: There are three sealing rings, which are arranged parallel to each other in multiple annular grooves.

3. The connection structure according to claim 2, characterized in that: All three sealing rings are elastic sealing rings, and the diameter of each of the three elastic sealing rings is larger than the diameter of the annular groove.

4. The connection structure according to claim 3, characterized in that: The rigid tube also includes a sealing ring, which is disposed at the upper end of the adapter and fits against the surface of the connector.

5. The connection structure according to claim 1, characterized in that: The connection structure also includes a positioning insert for positioning the tube body, the positioning insert being inserted through the connecting seat and engaging with the tube body.

6. The connection structure according to claim 5, characterized in that: The lower end of the positioning plate is provided with a U-shaped hole, and the positioning plate is engaged with the tube body through the U-shaped hole.

7. The connection structure according to claim 6, characterized in that: The connector includes a base and a mounting groove on the base. The mounting groove has through slots on both sides, and the positioning plate passes through the connector via the through slots.

8. The connection structure according to claim 7, characterized in that: The connection structure also includes a positioning plate, which is disposed in the mounting groove. The positioning plate has a through hole and a mounting hole, and the rigid tube passes through the through hole and is inserted into the base.

9. The connection structure according to claim 1, characterized in that: The tube body also includes a transition tube, which is an L-shaped tube. One end of the L-shaped tube is connected to the rigid tube, and the other end of the L-shaped tube is connected to the intake capillary tube.

10. The connection structure according to claim 1, characterized in that: The tube body also includes a flexible tube connected to the end of the rigid tube away from the connector.

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