Vehicle-mounted horizontal rotary compressor and vehicle

Abstract

The invention belongs to the technical field of compressors, and discloses a vehicle-mounted horizontal rotary compressor and a vehicle. The vehicle-mounted horizontal rotary compressor comprises a shell and a pump body assembly mounted in the shell; the shell comprises a low-pressure shell body and a high-pressure shell body which are connected in a sealed mode, and the pump body assembly is installed in a high-pressure cavity formed by the high-pressure shell body. The low-pressure shell end face of the low-pressure shell is connected with the high-pressure shell end face outer ring of the high-pressure shell in a sealed mode. The pump body assembly comprises a main bearing, and the outer edge of the main bearing is in sealing fit with the inner ring of the high-pressure shell end face of the high-pressure shell. The sealing position between the high-pressure shell and the low-pressure shell is optimized into a low-pressure sealing structure, so that the number of sealing washers between the high-pressure shell and the low-pressure shell is reduced, the assembly process difficulty of the compressor is greatly reduced, leakage of the high-pressure side is avoided, and reliable operation of the compressor is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of compressors, and in particular relates to a vehicle-mounted horizontal rotary compressor and a vehicle. Background Art

[0002] On-board horizontal rotary compressor is a compressor specially used in vehicle environment, especially in on-board air conditioners, heat pumps and vehicle management systems of electric buses and trains, providing refrigeration, heating and air conditioning functions for vehicles; with the rapid development of new energy vehicles and public transportation, the market demand for on-board horizontal rotary compressors is also increasing.

[0003] At present, in vehicle-mounted horizontal rotary compressors, the main bearing flange surface or the middle partition is generally clamped between the high-pressure side shell and the low-pressure side shell to separate the interior of the compressor shell into a high-pressure chamber and a low-pressure chamber; however, when the main bearing flange surface or the middle partition is clamped between the high-pressure side shell and the low-pressure side shell, two sets of sealing gaskets with different cross-sections are usually required for sealing. Due to the structural and material limitations of the sealing gasket, high-pressure side leakage is very likely to occur, resulting in reduced reliability of the compressor; secondly, the improvement and verification cycle of the sealing gasket is long and difficult, which seriously affects the design progress of the compressor structure scheme. Summary of the invention

[0004] In response to the technical problems existing in the prior art, the present invention provides a vehicle-mounted horizontal rotary compressor and a vehicle to solve the technical problem that when the main bearing flange surface or the middle partition is clamped between the high-pressure side housing and the low-pressure side housing, two sets of sealing gaskets are usually required for sealing. Due to the structural and material limitations of the sealing gasket, high-pressure side leakage is very likely to occur, resulting in reduced reliability of the compressor.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: The present invention provides a vehicle-mounted horizontal rotary compressor, comprising a housing and a pump assembly installed in the housing; the housing comprises a low-pressure housing and a high-pressure housing which are sealed and connected, and the pump assembly is installed in a high-pressure cavity formed by the high-pressure housing; The low-pressure housing end face of the low-pressure housing is sealedly connected to the outer ring of the high-pressure housing end face of the high-pressure housing; The pump body assembly comprises a main bearing, the outer edge of which is sealingly matched with the inner ring of the high-pressure housing end face of the high-pressure housing.

[0006] Furthermore, the main bearing includes a main bearing body and a main bearing flange sleeved on the outside of the main bearing body; the inner ring of the main bearing flange is connected to the outer circumferential surface of the main bearing body, and the end face of the main bearing flange is sealed with the inner ring of the high-pressure shell end face of the high-pressure shell.

[0007] Furthermore, a first sealing gasket is arranged between the outer ring of the high-pressure shell end face and the low-pressure shell end face, and the low-pressure shell and the high-pressure shell are fixedly connected by fasteners; a second sealing gasket is arranged between the end face of the main bearing flange and the inner ring of the high-pressure shell end face of the high-pressure shell.

[0008] Furthermore, the first sealing gasket and the second sealing gasket are an integrated structure.

[0009] The present invention also provides a vehicle-mounted horizontal rotary compressor, comprising a housing and a pump assembly installed in the housing; the housing comprises a low-pressure housing and a high-pressure housing which are sealed and connected, and the pump assembly is installed in a high-pressure cavity formed by the high-pressure housing; The low-pressure housing end face of the low-pressure housing is sealedly connected to the outer ring of the high-pressure housing end face of the high-pressure housing; The pump body assembly comprises a main bearing, on which a silencer cover is arranged; the outer peripheral wall of the silencer cover is sealingly matched with the inner ring of the high-pressure housing end face of the high-pressure housing.

[0010] Furthermore, a silencer hood assembly hole is provided at the center of the silencer hood, and the main bearing is sealingly matched with the silencer hood assembly hole.

[0011] Furthermore, a first sealing gasket is arranged between the outer ring of the high-pressure shell end face and the low-pressure shell end face, and the low-pressure shell and the high-pressure shell are fixedly connected by fasteners; a second sealing gasket is arranged between the outer peripheral wall of the silencer and the inner ring of the high-pressure shell end face of the high-pressure shell.

[0012] Furthermore, the first sealing gasket and the second sealing gasket are an integrated structure.

[0013] Furthermore, the silencer cover and the high-pressure housing are fixedly connected via fasteners.

[0014] The present invention also provides a vehicle, comprising the vehicle-mounted horizontal rotary compressor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The vehicle-mounted horizontal rotary compressor provided by the present invention seals the low-pressure shell end face of the low-pressure shell with the outer ring of the high-pressure shell end face of the high-pressure shell, and seals the outer edge of the main bearing with the inner ring of the high-pressure shell end face of the high-pressure shell, so as to optimize the sealing position between the high-pressure shell and the low-pressure shell to a low-pressure sealing structure with the same cross-section, thereby reducing the number of sealing gaskets with different cross-sections between the high-pressure shell and the low-pressure shell, greatly reducing the difficulty of the compressor assembly process, avoiding leakage on the high-pressure side, and ensuring the reliable operation of the compressor; at the same time, it can effectively reduce the high-pressure side seal verification cycle and difficulty of the compressor, and effectively shorten the structural design cycle of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of a vehicle-mounted horizontal rotary compressor provided in Example 1; Figure 2 A schematic structural diagram of a vehicle-mounted horizontal rotary compressor provided in Example 2; Figure 3 Schematic diagram of the structure of the silencer cover in Example 1 or 2.

[0018] Among them, 1 is a shell, 2 is a motor assembly, 3 is a pump body assembly, 4 is a rolling bearing, 5 is a main bearing, 6 is a secondary bearing, 7 is a rolling piston, 8 is a crankshaft, 9 is a cylinder, 10 is a silencer; 11 is a low-pressure chamber, 12 is a high-pressure chamber, 13 is an air inlet of a compressor, 14 is a working chamber, 15 is an exhaust port of a compressor, 16 is a main bearing flange, 17 is an inner ring of an end face of a high-pressure shell, 18 is an outer peripheral wall of a silencer, 19 is an assembly hole of a silencer, 20 is an end face of a low-pressure shell, 21 is an outer ring of an end face of a high-pressure shell, 22 is a first sealing gasket; 101 is a low-pressure shell, 102 is a high-pressure shell; 201 is a motor stator, 202 is a motor rotor. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects solved by this application clearer, the technical solutions in the embodiments of this application will be described clearly and completely in combination with the drawings in the embodiments of this application; obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Example 1 As attached Figure 1 As shown, this embodiment 1 provides a vehicle-mounted horizontal rotary compressor, including a shell 1 and a motor assembly 2 and a pump body assembly 3 arranged in the shell 1; the shell 1 includes a low-pressure shell 101 and a high-pressure shell 102 that are sealed and connected, and the interior of the shell 1 defines an accommodating chamber; wherein the accommodating chamber includes a low-pressure chamber 11 and a high-pressure chamber 12, the low-pressure chamber 11 is formed by the low-pressure shell 101, and the high-pressure chamber 12 is formed by the high-pressure shell 102; the motor assembly 2 is installed in the low-pressure shell 101 and placed in the low-pressure chamber 11; the pump body assembly 3 is installed in the high-pressure shell 102 and placed in the high-pressure chamber 12.

[0021] The low-pressure shell 101 is provided with a first opening, and the high-pressure shell 102 is provided with a second opening; the first opening is communicated with the second opening to form a accommodating cavity; wherein the low-pressure shell end face 20 of the low-pressure shell 101 is sealedly connected with the high-pressure shell end face outer ring 21 of the high-pressure shell 102; preferably, the low-pressure shell 101 and the high-pressure shell 102 are fixedly connected by fasteners, and a first sealing gasket 22 is provided between the high-pressure shell end face outer ring 21 and the low-pressure shell end face 20.

[0022] The motor assembly 2 includes a motor stator 201 and a motor rotor 202. The motor stator 201 is installed in the low-pressure housing 101. The motor rotor 202 is concentrically assembled in the motor stator 201 and is arranged on the periphery of the long axis portion of the crankshaft 8 in the pump body assembly 3 to drive the crankshaft 8 to rotate.

[0023] The pump body assembly 3 includes a main bearing 5, a secondary bearing 6, a rolling piston 7, a crankshaft 8, a cylinder 9 and a silencer 10; the cylinder 9 is installed in the high-pressure housing 102, and the working chamber 14 of the cylinder 9 is arranged in the high-pressure chamber 12; the main bearing 5 and the secondary bearing 6 are respectively arranged on both sides of the cylinder 9, and the rolling piston 7 is arranged in the working chamber 14 of the cylinder 9; the main bearing 5 cooperates with the long axis portion of the crankshaft 8, and the secondary bearing 6 cooperates with the short axis portion of the crankshaft 8; wherein the end of the long axis portion of the crankshaft 8 is connected to the low-pressure housing 101 through a rolling bearing 4; the rotor piston 7 cooperates with the eccentric portion of the crankshaft 8.

[0024] In this embodiment 1, the outer edge of the main bearing 5 is sealed with the inner ring 17 of the high-pressure shell end face of the high-pressure shell 102; specifically, the main bearing 5 includes a main bearing body and a main bearing flange 16 sleeved on the outside of the main bearing body; the inner ring of the main bearing flange 16 is connected to the outer circumferential surface of the main bearing body, and the end face of the main bearing flange 16 is sealed with the inner ring 17 of the high-pressure shell end face of the high-pressure shell 102; wherein, the main bearing flange 16 is fixed to the high-pressure shell 102 by fasteners, and a second sealing gasket is arranged between the end face of the main bearing flange 16 and the inner ring 17 of the high-pressure shell end face of the high-pressure shell 102.

[0025] This embodiment 1 also provides another implementation method, specifically: the first sealing gasket 22 and the second sealing gasket are an integrated structure.

[0026] The muffler cover 10 is arranged on the main bearing 5, and a muffler cover assembly hole 19 is opened at the center of the muffler cover 10. Figure 3 As shown; wherein, the main bearing 5 is sealed with the silencer cover assembly hole 19.

[0027] In this embodiment 1, a compressor air inlet 13 is provided on the low-pressure housing 101 , and the compressor air inlet 13 is connected to the low-pressure chamber 11 ; a compressor exhaust port 15 is provided on the high-pressure housing 102 , and the compressor exhaust port 15 is connected to the high-pressure chamber 12 .

[0028] Principle description: In the vehicle-mounted horizontal rotary compressor described in the present embodiment 1, a first sealing gasket 22 is arranged between the outer ring 21 of the high-pressure shell end face and the low-pressure shell end face 20 to achieve sealing cooperation, and a second sealing gasket is arranged between the end face of the main bearing flange 16 and the inner ring 17 of the high-pressure shell end face of the high-pressure shell 102 to achieve sealing, thereby optimizing the low-pressure sealing position and the high-pressure sealing position of the existing low-pressure shell 101 and the low-pressure shell 102 into a low-pressure sealing structure of the same cross-section, and reducing the position of the sealing gasket by improving the structure, which greatly reduces the process difficulty, and can better solve the problem of long high-pressure sealing verification cycle and high difficulty; wherein, the outer edge of the main bearing 5 and the high-pressure shell 102 and the high-pressure shell and the low-pressure shell are fixed by fasteners.

[0029] The vehicle-mounted horizontal rotary compressor described in this embodiment 1 installs the main bearing flange on the high-pressure housing, and the low-pressure housing is sealed to the outer edge end face of the high-pressure housing, so as to optimize the high-pressure and low-pressure sealing positions on both sides of the main bearing into a low-pressure sealing structure, which can effectively reduce the process difficulty and better solve the problem of high-pressure seal leakage.

[0030] Example 2 As attached Figure 2 As shown, a vehicle-mounted horizontal rotary compressor provided in this embodiment 2 includes a shell 1 and a motor assembly 2 and a pump body assembly 3 arranged in the shell 1; the shell 1 includes a low-pressure shell 101 and a high-pressure shell 102 that are sealed and connected, and the interior of the shell 1 defines an accommodating chamber; wherein the accommodating chamber includes a low-pressure chamber 11 and a high-pressure chamber 12, the low-pressure chamber 11 is formed by the low-pressure shell 101, and the high-pressure chamber 12 is formed by the high-pressure shell 102; the motor assembly 2 is installed in the low-pressure shell 101 and placed in the low-pressure chamber 11; the pump body assembly 3 is installed in the high-pressure shell 102 and placed in the high-pressure chamber 12.

[0031] The low-pressure shell 101 is provided with a first opening, and the high-pressure shell 102 is provided with a second opening; the first opening is communicated with the second opening to form a accommodating cavity; wherein the low-pressure shell end face 20 of the low-pressure shell 101 is sealedly connected with the high-pressure shell end face outer ring 21 of the high-pressure shell 102; preferably, the low-pressure shell 101 and the high-pressure shell 102 are fixedly connected by fasteners, and a first sealing gasket 22 is provided between the high-pressure shell end face outer ring 21 and the low-pressure shell end face 20.

[0032] The motor assembly 2 includes a motor stator 201 and a motor rotor 202. The motor stator 201 is installed in the low-pressure housing 101. The motor rotor 202 is concentrically assembled in the motor stator 201 and is arranged on the periphery of the long axis portion of the crankshaft 8 in the pump body assembly 3 to drive the crankshaft 8 to rotate.

[0033] The pump body assembly 3 includes a main bearing 5, a secondary bearing 6, a rolling piston 7, a crankshaft 8, a cylinder 9 and a silencer 10; the cylinder 9 is installed in the high-pressure housing 102, and the working chamber 14 of the cylinder 9 is arranged in the high-pressure chamber 12; the main bearing 5 and the secondary bearing 6 are respectively arranged on both sides of the cylinder 9, and the rolling piston 7 is arranged in the working chamber 14 of the cylinder 9; the main bearing 5 cooperates with the long axis portion of the crankshaft 8, and the secondary bearing 6 cooperates with the short axis portion of the crankshaft 8; wherein the end of the long axis portion of the crankshaft 8 is connected to the low-pressure housing 101 through a rolling bearing 4; the rotor piston 7 cooperates with the eccentric portion of the crankshaft 8.

[0034] The muffler cover 10 is arranged on the main bearing 5, and a muffler cover assembly hole 19 is opened at the center of the muffler cover 10. Figure 3As shown; wherein the main bearing 5 is sealed with the silencer assembly hole 19; the silencer outer peripheral wall 18 of the silencer 10 is sealed with the high-pressure shell end face inner ring 17 of the high-pressure shell 102; wherein a second sealing gasket is used between the silencer outer peripheral wall 18 and the high-pressure shell end face inner ring 17, and the silencer 10 is fixedly connected to the high-pressure shell 102 by fasteners.

[0035] This embodiment 2 also provides another implementation method, specifically: the first sealing gasket 22 and the second sealing gasket are an integrated structure.

[0036] The low-pressure housing 101 is provided with a compressor air inlet 13 , which is in communication with the low-pressure chamber 11 ; the high-pressure housing 102 is provided with a compressor exhaust port 15 , which is in communication with the high-pressure chamber 12 .

[0037] In this embodiment 2, a first sealing gasket is used between the outer ring of the high-pressure side shell end face and the low-pressure side shell end face, and the high-pressure side shell and the low-pressure side shell are fixedly connected by fasteners, and the silencer is arranged on the main bearing, and a second sealing gasket is used between the outer peripheral wall of the silencer and the inner ring of the high-pressure shell end face, and the silencer and the high-pressure shell are fixedly connected by fasteners; the silencer assembly hole is matched with the main bearing seal; the sealing position between the high-pressure shell and the low-pressure shell is optimized to a low-pressure sealing structure, which greatly reduces the difficulty of the assembly process of the compressor, avoids leakage on the high-pressure side, and ensures the reliable operation of the compressor.

[0038] Example 3 This embodiment 3 provides a vehicle, including a vehicle body and a compressor installed on the vehicle body; wherein the compressor adopts the vehicle-mounted horizontal rotary compressor described in the above-mentioned embodiment 1 or 2; wherein the assembly between the compressor and the vehicle body is similar to the assembly of the existing compressor, which will not be repeated here.

[0039] The vehicle-mounted horizontal rotary compressor described in the present invention optimizes the original high-pressure and low-pressure sealing positions into a low-pressure sealing structure, so as to reduce the number of sealing gaskets by improving the structure, reduce the process difficulty, and better solve the problem of long and difficult high-pressure sealing verification cycle; it should be noted that the structural improvement can also be applied to vertical compressors; the compressor can be used in passenger cars, commercial vehicles, buses, rail transit or ships and other equipment equipped with air conditioning; the compressor can use refrigerants such as R744, R134a, R290, R410A or R1234yf.

[0040] The above embodiment is only one of the implementation methods that can realize the technical solution of the present invention. The scope of protection claimed by the present invention is not limited only to this embodiment, but also includes changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention.

Claims

1. A vehicle-mounted horizontal rotary compressor, characterized in that: It comprises a housing (1) and a pump assembly (3) installed in the housing (1); the housing (1) comprises a low-pressure housing (101) and a high-pressure housing (102) which are sealed and connected to each other, and the pump assembly (3) is installed in a high-pressure chamber (12) formed by the high-pressure housing (102); The low-pressure housing end surface (20) of the low-pressure housing (101) is sealingly connected to the high-pressure housing end surface outer ring (21) of the high-pressure housing (102); The pump body assembly (3) comprises a main bearing (5), the outer edge of the main bearing (5) being sealingly matched with the inner ring (17) of the high-pressure housing end face of the high-pressure housing (102).

2. A vehicle-mounted horizontal rotary compressor according to claim 1, characterized in that: The main bearing (5) comprises a main bearing body and a main bearing flange (16) sleeved on the outside of the main bearing body; the inner ring of the main bearing flange (16) is connected to the outer circumferential surface of the main bearing body, and the end face of the main bearing flange (16) is sealingly matched with the inner ring (17) of the high-pressure housing end face of the high-pressure housing (102).

3. A vehicle-mounted horizontal rotary compressor according to claim 2, characterized in that: A first sealing gasket (22) is provided between the high-pressure housing end face outer ring (21) and the low-pressure housing end face (20); the low-pressure housing (101) and the high-pressure housing (102) are fixedly connected via fasteners; and a second sealing gasket is provided between the end face of the main bearing flange (16) and the high-pressure housing end face inner ring (17) of the high-pressure housing (102).

4. The vehicle-mounted horizontal rotary compressor according to claim 3, characterized in that: The first sealing gasket (22) and the second sealing gasket are an integrated structure.

5. A vehicle-mounted horizontal rotary compressor, characterized in that: It comprises a housing (1) and a pump assembly (3) installed in the housing (1); the housing (1) comprises a low-pressure housing (101) and a high-pressure housing (102) which are sealed and connected to each other, and the pump assembly (3) is installed in a high-pressure chamber (12) formed by the high-pressure housing (102); The low-pressure housing end surface (20) of the low-pressure housing (101) is sealingly connected to the high-pressure housing end surface outer ring (21) of the high-pressure housing (102); The pump body assembly (3) comprises a main bearing (5), on which a silencer cover (10) is arranged; the silencer cover outer peripheral wall (18) of the silencer cover (10) is sealingly matched with the high-pressure housing end face inner ring (17) of the high-pressure housing (102).

6. The vehicle-mounted horizontal rotary compressor according to claim 5, characterized in that: A silencer cover assembly hole (19) is provided at the center of the silencer cover (10), and the main bearing (5) is in sealing cooperation with the silencer cover assembly hole.

7. The vehicle-mounted horizontal rotary compressor according to claim 5, characterized in that: A first sealing gasket (22) is provided between the outer ring (21) of the high-pressure housing end face and the low-pressure housing end face (20), and the low-pressure housing (101) and the high-pressure housing (102) are fixedly connected via fasteners; a second sealing gasket is provided between the outer peripheral wall (18) of the silencer cover (10) and the inner ring (17) of the high-pressure housing end face of the high-pressure housing (102).

8. The vehicle-mounted horizontal rotary compressor according to claim 7, characterized in that: The first sealing gasket (22) and the second sealing gasket are an integrated structure.

9. The vehicle-mounted horizontal rotary compressor according to claim 7, characterized in that: The silencer cover (10) and the high-pressure housing (102) are fixedly connected via fasteners.

10. A vehicle, characterized in that: The vehicle comprises a vehicle-mounted horizontal rotary compressor as described in any one of claims 1-9.

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