Multi-channel device connected with thermostatic expansion valve

Abstract

The utility model relates to a multi-channel device connected with a thermostatic expansion valve, which relates to the technical field of automobile air conditioner pipeline connection and comprises a connecting seat, a high-pressure channel used for connecting a high-pressure pipeline and a low-pressure channel used for connecting a low-pressure pipeline are arranged on the connecting seat, and a high-pressure column and a low-pressure column which are connected with an expansion valve are arranged on the side wall of the connecting seat. A high-pressure inner hole is formed in the high-pressure column, a low-pressure inner hole is formed in the low-pressure column, the high-pressure channel communicates with the high-pressure inner hole, and the low-pressure channel communicates with the low-pressure inner hole. High-pressure fluid circulates between the high-pressure pipeline and the expansion valve through the high-pressure channel and the high-pressure inner hole, low-pressure fluid circulates between the low-pressure pipeline and the expansion valve through the low-pressure channel and the low-pressure inner hole, multi-flow-channel intercommunication of the high-pressure fluid and the low-pressure fluid can be achieved through the connecting base, related bends and flow channels are reduced, meanwhile, flow resistance during working is reduced, and the working efficiency is improved. The arrangement effect of the automobile air conditioner pipeline is improved, and meanwhile the convenience of connection of the automobile air conditioner pipeline is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air-conditioning pipeline connection, in particular to a multi-channel device connected with a thermal expansion valve. Background Art

[0002] Automobile air-conditioning pipelines are pipeline assemblies used to connect the various components of automobile air-conditioning. Automobile air-conditioning pipelines are divided into high-pressure pipelines and low-pressure pipelines. The high-pressure side includes the compressor output side, high-pressure pipelines, condensers, liquid storage dryers and liquid pipelines. The low-pressure side includes the evaporator, accumulator, return air pipeline, compressor input side and compressor oil pool.

[0003] The expansion valve is one of the indispensable components in the automobile air-conditioning system. The automobile air-conditioning pipeline from the compressor to the expansion valve is usually called the high-pressure pipeline, and the automobile air-conditioning pipeline from the expansion valve to the compressor is usually called the low-pressure pipeline. When there are multiple flow channels that need to be interconnected, there are many pipelines connected to the expansion valve. The installation and fixation of multiple pipelines not only affect each other and affect the convenience of pipeline installation and fixation, but also require a larger installation space, thereby reducing the convenience of automobile air-conditioning pipeline connection. Utility Model Content

[0004] In order to improve the convenience of connecting automobile air-conditioning pipelines, the utility model provides a multi-channel device connected to a thermal expansion valve.

[0005] The present application provides a multi-channel device connected to a thermal expansion valve, which adopts the following technical solution:

[0006] A multi-channel device connected to a thermal expansion valve comprises a connecting seat, the connecting seat having a high-pressure channel for connecting to a high-pressure pipeline and a low-pressure channel for connecting to a low-pressure pipeline, a high-pressure column and a low-pressure column connected to the expansion valve are arranged on the side wall of the connecting seat, the high-pressure column has a high-pressure inner hole, the low-pressure column has a low-pressure inner hole, the high-pressure channel is connected to the high-pressure inner hole, and the low-pressure channel is connected to the low-pressure inner hole.

[0007] By adopting the above technical solution, the high-pressure pipeline is connected to the high-pressure channel, and the low-pressure pipeline is connected to the low-pressure channel. Then, the high-pressure fluid flows between the high-pressure pipeline and the expansion valve through the high-pressure channel and the high-pressure inner hole, and the low-pressure fluid flows between the low-pressure pipeline and the expansion valve through the low-pressure channel and the low-pressure inner hole. The high-pressure pipeline, the low-pressure pipeline and the expansion valve are connected through the connecting seat, which improves the convenience of pipeline installation and layout, thereby improving the convenience of automobile air-conditioning pipeline connection.

[0008] Optionally, the high-pressure channel includes a first channel and a second channel, the first channel and the second channel are respectively used to connect different high-pressure pipelines, and the first channel, the second channel and the high-pressure inner hole are interconnected.

[0009] By adopting the above technical solution, the high-pressure fluid circulates in the first channel, the second channel and the high-pressure inner hole to achieve directional diversion of the high-pressure fluid, thereby improving the convenience of multi-channel interconnection of the high-pressure fluid in the automobile air-conditioning system.

[0010] Optionally, the low-pressure channel includes a third channel and a fourth channel, the third channel and the fourth channel are respectively used to connect different low-pressure pipelines, and the third channel, the fourth channel and the low-pressure inner hole are interconnected.

[0011] By adopting the above technical scheme, the low-pressure fluid circulates in the third channel, the fourth channel and the low-pressure inner hole to realize the directional diversion of the low-pressure fluid, thereby improving the convenience of multi-channel interconnection of the low-pressure fluid in the automobile air-conditioning system. The multi-channel interconnection of the high-pressure fluid and the low-pressure fluid can be realized through a connecting seat, and the flow of the high-pressure fluid and the low-pressure fluid does not affect each other, which saves installation space, improves the layout effect of the automobile air-conditioning pipeline, and improves the convenience of connecting the automobile air-conditioning pipeline.

[0012] Optionally, a first sedimentation hole is provided at the opening of the first channel, and a third sedimentation hole is provided at the opening of the third channel.

[0013] By adopting the above technical solution, the first sedimentation hole is used to connect the high-pressure pipeline, and the third sedimentation hole is used to connect the low-pressure pipeline, so as to improve the stability of the pipeline connection.

[0014] Optionally, the axes of the first channel, the second channel and the high-pressure inner hole are perpendicular to each other, the axes of the third channel and the fourth channel coincide with each other, the axis of the low-pressure inner hole is perpendicular to the axes of the third channel and the fourth channel, and the axes of the second channel and the fourth channel are parallel.

[0015] By adopting the above technical scheme, the high-pressure column and the low-pressure column are located on the same side wall, the high-pressure pipeline connected to the first channel is perpendicular to the high-pressure column, the high-pressure pipeline connected to the second channel is perpendicular to the high-pressure column and perpendicular to the high-pressure pipeline connected to the first channel, the low-pressure pipeline connected to the third channel is perpendicular to the low-pressure column and perpendicular to the high-pressure column, and the axis of the low-pressure pipeline connected to the fourth channel coincides with the axis of the low-pressure pipeline connected to the third channel. Therefore, the high-pressure pipeline connected to the second channel and the low-pressure pipeline connected to the fourth channel are located on the same side and parallel to each other, thereby saving installation space for the pipelines, thereby improving the convenience of automobile pipeline connection, and thereby improving the layout effect of automobile air-conditioning pipelines.

[0016] Optionally, a weight-reducing groove is provided on the outer wall of the connecting seat facing away from the high-pressure column.

[0017] By adopting the above technical solution, the weight-reducing groove reduces the overall weight of the connecting seat.

[0018] Optionally, the weight reduction groove has a first groove bottom and a second groove bottom arranged perpendicular to each other, the first groove bottom is parallel to the side wall of the connecting seat provided with a high-pressure column, the second groove bottom is perpendicular to the axis of the third channel, and the connecting seat is provided with a first through hole that passes through the first groove bottom, and the first through hole is used to connect the expansion valve and the connecting seat.

[0019] By adopting the above technical solution, the first through hole facilitates the use of bolts to connect the expansion valve and the connecting seat, and the design of the weight-reducing groove can simultaneously reduce the length of the bolts in the connecting seat to improve the connection strength between the connecting seat and the expansion valve.

[0020] Optionally, the connecting seat is further provided with a second through hole penetrating through the bottom of the second groove, the second through hole is a threaded hole with threads, and the second through hole is used to connect the pipeline pressure plate and the connecting seat.

[0021] By adopting the above technical solution, the high-pressure pipeline connected to the second channel and the low-pressure pipeline connected to the fourth channel are connected to the connecting seat through the pipeline pressure plate, and bolts are passed through the pipeline pressure plate and threaded into the second through hole to improve the convenience of connecting the pipeline pressure plate and the connecting seat.

[0022] Optionally, both the high-pressure column and the low-pressure column have an annular groove for installing a sealing ring.

[0023] By adopting the above technical solution, a sealing ring is installed in the annular groove to improve the sealing of the connection between the high-pressure column, the low-pressure column and the expansion valve, thereby reducing connection leakage.

[0024] Optionally, two annular grooves are provided at intervals along the axial direction of the high-pressure column.

[0025] By adopting the above technical solution, two sealing rings are arranged through two annular grooves, and the two sealing rings realize double sealing effect to improve the sealing effect and reduce connection leakage.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. Connect the high-pressure pipeline with the high-pressure channel, and the low-pressure pipeline with the low-pressure channel. Then the high-pressure fluid flows between the high-pressure pipeline and the expansion valve through the high-pressure channel and the high-pressure inner hole, and the low-pressure fluid flows between the low-pressure pipeline and the expansion valve through the low-pressure channel and the low-pressure inner hole. The high-pressure pipeline, the low-pressure pipeline and the expansion valve are connected through the connecting seat to improve the convenience of pipeline installation and layout, thereby improving the convenience of automobile air-conditioning pipeline connection.

[0028] 2. The high-pressure fluid circulates in the first channel, the second channel and the high-pressure inner hole to realize the directional diversion of the high-pressure fluid, and the low-pressure fluid circulates in the third channel, the fourth channel and the low-pressure inner hole to realize the directional diversion of the low-pressure fluid. The multi-channel interconnection of the high-pressure fluid and the low-pressure fluid can be realized through the connecting seat, and the flow of the high-pressure fluid and the low-pressure fluid does not affect each other, which saves installation space, improves the layout effect of the automobile air-conditioning pipeline, and improves the convenience of connecting the automobile air-conditioning pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of this application;

[0030] Figure 2 It is a connection diagram of the connection socket and the high-pressure pipeline and the low-pressure pipeline in this application;

[0031] Figure 3 It is a connection diagram of the connection seat and the expansion valve in this application;

[0032] Figure 4 It is an exploded schematic diagram of the connection seat and the expansion valve in this application;

[0033] Figure 5 is a schematic diagram of the location of the third channel in this application;

[0034] Figure 6 is a schematic diagram of the first settling hole and the second settling hole in the present application, wherein the connecting seat is partially cut away;

[0035] Figure 7 It is a partial cross-sectional view of the connecting seat in this application.

[0036] Figure numerals: 1. Connecting seat; 11. High-pressure pipeline; 12. Low-pressure pipeline; 13. Expansion valve; 14. High-pressure column; 141. High-pressure inner hole; 15. Low-pressure column; 151. Low-pressure inner hole; 16. Pipeline pressure plate; 17. Annular groove; 2. High-pressure channel; 21. First channel; 211. First sedimentation hole; 22. Second channel; 3. Low-pressure channel; 31. Third channel; 311. Third sedimentation hole; 32. Fourth channel; 4. Weight reduction groove; 41. First groove bottom; 411. First through hole; 42. Second groove bottom; 421. Second through hole. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-7 This application is described in further detail.

[0038] The embodiment of the present application discloses a multi-channel device connected to a thermal expansion valve.

[0039] Reference Figure 1 , Figure 2 and Figure 3A multi-channel device connected to a thermal expansion valve includes a connecting seat 1, the connecting seat 1 has a high-pressure channel 2 for connecting a high-pressure pipeline 11 and a low-pressure channel 3 for connecting a low-pressure pipeline 12, a high-pressure column 14 and a low-pressure column 15 connected to the expansion valve 13 are provided on the side wall of the connecting seat 1, the high-pressure column 14 has a high-pressure inner hole 141 penetrating the high-pressure column 14 along the axial direction, the low-pressure column 15 has a low-pressure inner hole 151 penetrating the low-pressure column 15 along the axial direction, the high-pressure channel 2 is connected to the high-pressure inner hole 141, and the low-pressure channel 3 is connected to the low-pressure inner hole 151.

[0040] In this embodiment, the overall size of the connecting seat 1 is 61*36*42mm, and the connecting seat 1 is made of aluminum alloy material, which not only ensures the strength of the connecting seat 1 but also reduces the weight. In other embodiments, the size of the connecting seat 1 can be adjusted as needed, and the connecting seat 1 can be made of materials other than plastic.

[0041] Reference Figure 1 , Figure 2 and Figure 4 The high-pressure channel 2 includes a first channel 21 and a second channel 22, which are respectively used to connect different high-pressure pipelines 11. The first channel 21, the second channel 22 and the high-pressure inner hole 141 are interconnected, and the axes of the first channel 21, the second channel 22 and the high-pressure inner hole 141 are perpendicular to each other.

[0042] Reference Figure 2 , Figure 5 and Figure 6 The first channel 21 is used for welding the high-pressure pipeline 11. A first settlement hole 211 is provided at the opening of the first channel 21. The depth of the first settlement hole 211 is not greater than 5 mm. In this embodiment, the depth of the first settlement hole 211 is 5 mm. In other embodiments, corresponding adjustments can be made. Welding the high-pressure pipeline 11 through the first settlement hole 211 can improve the welding quality and simplify the technical requirements of the welding process.

[0043] Reference Figure 1 , Figure 2 and Figure 5 The low-pressure channel 3 includes a third channel 31 and a fourth channel 32 , and the third channel 31 and the fourth channel 32 are respectively used to connect different low-pressure pipelines 12 .

[0044] Reference Figure 2 , Figure 5 and Figure 6The third channel 31, the fourth channel 32 and the low-pressure inner hole 151 are interconnected, the axes of the third channel 31 and the fourth channel 32 coincide, the axis of the low-pressure inner hole 151 is perpendicular to the axes of the third channel 31 and the fourth channel 32, the opening ends of the third channel 31 and the fourth channel 32 are respectively located on the opposite side walls of the connecting seat 1, the third channel 31 is used for welding the low-pressure pipeline 12, and the opening of the third channel 31 has a third settlement hole 311, the depth of the third settlement hole 311 is not more than 6mm, the depth of the third settlement hole 311 in this embodiment is 6mm, and corresponding adjustments can be made in other embodiments. Welding the low-pressure pipeline 12 through the third settlement hole 311 can improve the welding quality and simplify the technical requirements of the welding process.

[0045] Reference Figure 2 and Figure 6 The axes of the second channel 22 and the fourth channel 32 are parallel, and the opening ends of the second channel 22 and the fourth channel 32 are located on the same side wall of the connecting seat 1. The second channel 22 and the fourth channel 32 are connected to the high-pressure pipeline 11 and the low-pressure pipeline 12 through the pipeline pressing plate 16. The surface roughness at the openings of the third channel 31 and the fourth channel 32 is greater than 1.6 microns, so as to improve the sealing effect of the sealing ring assembled therein.

[0046] Reference Figure 5 and Figure 6 A weight-reducing groove 4 is provided on the outer wall of the connecting seat 1 facing away from the high-pressure column 14. The weight-reducing groove 4 has a first groove bottom 41 and a second groove bottom 42 which are arranged perpendicular to each other. The first groove bottom 41 is parallel to the side wall of the connecting seat 1 provided with the high-pressure column 14. In this embodiment, the distance between the first groove bottom 41 and the outer wall of the connecting seat 1 provided with the high-pressure column 14 is 10 mm. In other embodiments, it can be adjusted accordingly according to needs. The second groove bottom 42 is perpendicular to the axis of the third channel 31.

[0047] Reference Figure 4 , Figure 5 and Figure 7 The connecting seat 1 is provided with a first through hole 411 penetrating through the first groove bottom 41 , and the first through hole 411 is used to connect the expansion valve 13 and the connecting seat 1 .

[0048] Reference Figure 2 , Figure 5 and Figure 6 The connecting seat 1 is also provided with a second through hole 421 penetrating the second groove bottom 42 . The second through hole 421 is a threaded hole with threads. The second through hole 421 is used to connect the pipeline pressing plate 16 and the connecting seat 1 .

[0049] Reference Figure 1 and Figure 4Both the high-pressure column 14 and the low-pressure column 15 have an annular groove 17 for installing a sealing ring. Taking the annular groove 17 located on the high-pressure column 14 as an example, the annular groove 17 coincides with the axis of the high-pressure column 14, and two annular grooves 17 are arranged at intervals along the axial direction of the high-pressure column 14. During installation, a sealing ring is installed in the annular groove 17 to improve the sealing effect.

[0050] Reference Figure 2 , Figure 4 and Figure 5 During installation, the high-pressure pipeline 11 connected to the first channel 21 is connected to the first channel 21 by welding, and the low-pressure pipeline 12 connected to the third channel 31 is connected to the third channel 31 by welding. The high-pressure pipeline 11 connected to the second channel 22 passes through the pipeline pressing plate 16 and extends into the second channel 22. The low-pressure pipeline 12 connected to the fourth channel 32 passes through the pipeline pressing plate 16 and extends into the fourth channel 32. Sealing rings are assembled in the second channel 22 and the fourth channel 32 to seal the pipelines, and then bolts are passed through the pipeline pressing plate 16 and threadedly connected in the second through hole 421, so as to realize the connection between the pipeline pressing plate 16 and the connecting seat 1.

[0051] Reference Figure 2 , Figure 4 and Figure 5 , install a sealing ring in the annular groove 17, push the connecting seat 1 so that the high-pressure column 14 and the low-pressure column 15 extend into the connecting holes of the expansion valve 13 respectively, and the sealing ring improves the sealing effect of the connection between the connecting seat 1 and the expansion valve 13, and then pass the bolt through the first through hole 411 and threadedly connect it to the expansion valve 13, so as to achieve the connection between the expansion valve 13 and the connecting seat 1.

[0052] Reference Figure 1 and Figure 6 The high-pressure fluid circulates in the first channel 21, the second channel 22 and the high-pressure inner hole 141 to realize the directional flow of the high-pressure fluid, and the low-pressure fluid circulates in the third channel 31, the fourth channel 32 and the low-pressure inner hole 151 to realize the directional flow of the low-pressure fluid. The multi-channel interconnection of the high-pressure fluid and the low-pressure fluid can be achieved through the connecting seat 1, which reduces the relevant bends and flow channels, and at the same time reduces the flow resistance during operation. The flow of the high-pressure fluid and the low-pressure fluid does not affect each other, saving installation space, improving the layout effect of the automobile air-conditioning pipeline, and improving the convenience of connecting the automobile air-conditioning pipeline.

[0053] The working principle of the embodiment of the present application is as follows:

[0054] The high-pressure fluid circulates in the first channel 21, the second channel 22 and the high-pressure inner hole 141 to realize the directional diversion of the high-pressure fluid, and the low-pressure fluid circulates in the third channel 31, the fourth channel 32 and the low-pressure inner hole 151 to realize the directional diversion of the low-pressure fluid. The multi-channel interconnection of the high-pressure fluid and the low-pressure fluid can be achieved through the connecting seat 1, which reduces the relevant bends and flow channels, and at the same time reduces the flow resistance during operation. The flow of the high-pressure fluid and the low-pressure fluid does not affect each other, saving installation space, improving the layout effect of the automobile air-conditioning pipeline, and improving the convenience of connecting the automobile air-conditioning pipeline.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-channel device connected to a thermal expansion valve, characterized in that: The invention comprises a connection seat (1), the connection seat (1) having a high-pressure channel (2) for connecting to a high-pressure pipeline (11) and a low-pressure channel (3) for connecting to a low-pressure pipeline (12), a side wall of the connection seat (1) being provided with a high-pressure column (14) and a low-pressure column (15) connected to an expansion valve (13), the high-pressure column (14) having a high-pressure inner hole (141), the low-pressure column (15) having a low-pressure inner hole (151), the high-pressure channel (2) being in communication with the high-pressure inner hole (141), the low-pressure channel (3) being in communication with the low-pressure inner hole (151); the high-pressure channel (14) and the low-pressure channel (15) being in communication with the high-pressure inner hole (141); The channel (2) comprises a first channel (21) and a second channel (22), the first channel (21) and the second channel (22) are respectively used to connect different high-pressure pipelines (11), and the first channel (21), the second channel (22) and the high-pressure inner hole (141) are interconnected; the low-pressure channel (3) comprises a third channel (31) and a fourth channel (32), the third channel (31) and the fourth channel (32) are respectively used to connect different low-pressure pipelines (12), and the third channel (31), the fourth channel (32) and the low-pressure inner hole (151) are interconnected.

2. A multi-channel device connected to a thermal expansion valve according to claim 1, characterized in that: The first channel (21) has a first sedimentation hole (211) at its opening, and the third channel (31) has a third sedimentation hole (311) at its opening.

3. A multi-channel device connected to a thermal expansion valve according to claim 2, characterized in that: The axes of the first channel (21), the second channel (22) and the high-pressure inner hole (141) are perpendicular to each other, the axes of the third channel (31) and the fourth channel (32) coincide with each other, the axis of the low-pressure inner hole (151) is perpendicular to the axes of the third channel (31) and the fourth channel (32), and the axes of the second channel (22) and the fourth channel (32) are parallel.

4. A multi-channel device connected to a thermal expansion valve according to claim 3, characterized in that: A weight-reducing groove (4) is provided on the outer wall of the connecting seat (1) facing away from the high-pressure column (14).

5. A multi-channel device connected to a thermal expansion valve according to claim 4, characterized in that: The weight-reducing groove (4) comprises a first groove bottom (41) and a second groove bottom (42) which are arranged perpendicular to each other; the first groove bottom (41) is parallel to a side wall of a connecting seat (1) provided with a high-pressure column (14); the second groove bottom (42) is perpendicular to an axis of a third channel (31); the connecting seat (1) is provided with a first through hole (411) which passes through the first groove bottom (41); the first through hole (411) is used to connect the expansion valve (13) and the connecting seat (1).

6. A multi-channel device connected to a thermal expansion valve according to claim 5, characterized in that: The connecting seat (1) is also provided with a second through hole (421) penetrating the second groove bottom (42); the second through hole (421) is a threaded hole with threads; the second through hole (421) is used to connect the pipeline pressure plate (16) and the connecting seat (1).

7. A multi-channel device connected to a thermal expansion valve according to claim 1, characterized in that: The high-pressure column (14) and the low-pressure column (15) are both provided with an annular groove (17) for installing a sealing ring.

8. A multi-channel device connected to a thermal expansion valve according to claim 7, characterized in that: Two annular grooves (17) are spaced apart along the axial direction of the high-pressure column (14).

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