Vehicle-mounted horizontal rotary compressor and vehicle

Abstract

The utility model belongs to the technical field of compressors, and discloses a vehicle-mounted horizontal rotary compressor and a vehicle, which comprise a shell and a pump body assembly arranged 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. According to the utility model, 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, the leakage of a high-pressure side is avoided, and the reliable operation of the compressor is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to compressor technical field, especially relate to a vehicle-mounted horizontal rotary compressor and vehicle. BACKGROUND

[0002] The vehicle-mounted horizontal rotary compressor is a compressor specially used in a vehicle environment, particularly in a vehicle-mounted air conditioner, heat pump and vehicle management system of an electric passenger car and train, to provide refrigeration, heating and air conditioning functions for the vehicle; with the rapid development of new energy vehicles and public transportation, the market demand for the vehicle-mounted horizontal rotary compressor is also increasing.

[0003] At present, in the vehicle-mounted horizontal rotary compressor, the main bearing flange face or the intermediate partition plate 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 cavity and a low-pressure cavity; however, when the main bearing flange face or the intermediate partition plate is clamped between the high-pressure side shell and the low-pressure side shell, two groups of sealing gaskets with different sections are usually required for sealing, and due to the limitation of the structure and material of the sealing gasket, high-pressure side leakage is prone to occur, which reduces the reliability of the compressor; in addition, the improvement and verification period of the sealing gasket is long and difficult, which seriously affects the design progress of the compressor structure scheme. SUMMARY

[0004] In view of the technical problems in the prior art, the utility model provides a vehicle-mounted horizontal rotary compressor and vehicle to solve the technical problem that when the main bearing flange face or the intermediate partition plate is clamped between the high-pressure side shell and the low-pressure side shell, two groups of sealing gaskets are usually required for sealing, and due to the limitation of the structure and material of the sealing gasket, high-pressure side leakage is prone to occur, which reduces the reliability of the compressor.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] The utility model provides a vehicle-mounted horizontal rotary compressor, which comprises a shell and a pump body assembly installed in the shell; the shell comprises a low-pressure shell and a high-pressure shell connected in a sealed manner, and the pump body assembly is installed in a high-pressure cavity formed by the high-pressure shell;

[0007] The low-pressure shell end face of the low-pressure shell is connected in a sealed manner with the outer ring of the high-pressure shell end face of the high-pressure shell;

[0008] The pump body assembly comprises a main bearing, and the outer edge of the main bearing is connected in a sealed manner with the inner ring of the high-pressure shell end face of the high-pressure shell.

[0009] Further, the main bearing comprises a main bearing body and a main bearing flange sleeved outside the main bearing body; an inner ring of the main bearing flange is connected with an outer circumferential surface of the main bearing body, and an end surface of the main bearing flange is in sealing fit with an inner ring of a high-pressure shell end surface of the high-pressure shell.

[0010] Further, a first sealing gasket is arranged between the high-pressure shell end surface outer ring and the low-pressure shell end surface, and the low-pressure shell and the high-pressure shell are fixedly connected through fasteners; a second sealing gasket is arranged between the end surface of the main bearing flange and the high-pressure shell end surface inner ring of the high-pressure shell.

[0011] Further, the first sealing gasket and the second sealing gasket are in an integral structure.

[0012] The utility model also provides a vehicle-mounted horizontal rotary compressor, including shell and pump body subassembly installed in the shell, the shell includes low pressure shell and high pressure shell of sealed connection, pump body subassembly is installed in the high pressure cavity formed by high pressure shell,

[0013] The low-pressure shell end surface of the low-pressure shell is sealingly connected with the high-pressure shell end surface outer ring of the high-pressure shell.

[0014] The pump body subassembly comprises a main bearing, and an acoustic cover is arranged on the main bearing; an outer peripheral wall of the acoustic cover is in sealing fit with the high-pressure shell end surface inner ring of the high-pressure shell.

[0015] Further, a central part of the acoustic cover is provided with an acoustic cover assembly hole, and the main bearing is in sealing fit with the acoustic cover assembly hole.

[0016] Further, a first sealing gasket is arranged between the high-pressure shell end surface outer ring and the low-pressure shell end surface, and the low-pressure shell and the high-pressure shell are fixedly connected through fasteners; a second sealing gasket is arranged between the outer peripheral wall of the acoustic cover and the high-pressure shell end surface inner ring of the high-pressure shell.

[0017] Further, the first sealing gasket and the second sealing gasket are in an integral structure.

[0018] Further, the acoustic cover and the high-pressure shell are fixedly connected through fasteners.

[0019] The utility model also provides a vehicle, the vehicle includes the vehicle-mounted horizontal rotary compressor.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] The vehicle-mounted horizontal rotary compressor provided by the utility model is sealed and connected with the outer circle of the high-pressure shell end surface of the high-pressure shell through the outer edge of the main bearing and the inner circle of the high-pressure shell end surface of the high-pressure shell, the sealing position between the high-pressure shell and the low-pressure shell is optimized to a low-pressure sealing structure with the same section, the number of sealing washers with different sections between the high-pressure shell and the low-pressure shell is reduced, the assembly process difficulty of the compressor is greatly reduced, the high-pressure side leakage is avoided, and the reliable operation of the compressor is ensured; meanwhile, the high-pressure side sealing verification period and difficulty of the compressor are effectively reduced, and the structure scheme design period of the compressor is effectively shortened. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical problems, technical solutions and beneficial effects solved by the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 The structure schematic view of the vehicle-mounted horizontal rotary compressor provided for the embodiment 1;

[0024] Figure 2 The structure schematic view of the vehicle-mounted horizontal rotary compressor provided for the embodiment 2;

[0025] Figure 3 The structure schematic view of the sound shield in the embodiment 1 or 2.

[0026] Among them, 1 shell, 2 motor assembly, 3 pump body assembly, 4 rolling bearing, 5 main bearing, 6 auxiliary bearing, 7 rolling piston, 8 crankshaft, 9 cylinder, 10 sound shield; 11 low-pressure cavity, 12 high-pressure cavity, 13 compressor air inlet, 14 working cavity, 15 compressor air outlet, 16 main bearing flange, 17 high-pressure shell end surface inner circle, 18 sound shield outer peripheral wall, 19 sound shield assembly hole, 20 low-pressure shell end surface, 21 high-pressure shell end surface outer circle, 22 first sealing gasket; 101 low-pressure shell, 102 high-pressure shell; 201 motor stator, 202 motor rotor. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0028] Embodiment 1

[0029] As shown in the accompanying drawings, Figure 1 Embodiment 1 provides a vehicle-mounted horizontal rotary compressor, which comprises a shell 1 and a motor assembly 2 and a pump body assembly 3 arranged in the shell 1; the shell 1 comprises a low-pressure shell 101 and a high-pressure shell 102 which are sealingly connected, and the interior of the shell 1 defines a containing cavity; wherein the containing cavity comprises a low-pressure cavity 11 and a high-pressure cavity 12, the low-pressure cavity 11 is formed by the low-pressure shell 101, and the high-pressure cavity 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 cavity 11; the pump body assembly 3 is installed in the high-pressure shell 102 and placed in the high-pressure cavity 12.

[0030] 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 and the second opening are in communication to form the containing cavity; wherein the low-pressure shell end face 20 of the low-pressure shell 101 is sealingly 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 the first sealing gasket 22 is arranged between the high-pressure shell end face outer ring 21 and the low-pressure shell end face 20.

[0031] The motor assembly 2 comprises a motor stator 201 and a motor rotor 202; the motor stator 201 is installed in the low-pressure shell 101, and the motor rotor 202 is concentrically assembled in the motor stator 201 and arranged on the outer periphery of the long shaft part of the crankshaft 8 in the pump body assembly 3 to drive the rotation of the crankshaft 8.

[0032] The pump body assembly 3 comprises a main bearing 5, a secondary bearing 6, a rolling piston 7, a crankshaft 8, a cylinder 9 and a muffler 10; the cylinder 9 is installed in the high-pressure shell 102, and the working cavity 14 of the cylinder 9 is arranged in the high-pressure cavity 12; the main bearing 5 and the secondary bearing 6 are arranged on the two sides of the cylinder 9 respectively, and the rolling piston 7 is arranged in the working cavity 14 of the cylinder 9; the main bearing 5 cooperates with the long shaft part of the crankshaft 8, and the secondary bearing 6 cooperates with the short shaft part of the crankshaft 8; wherein the end part of the long shaft part of the crankshaft 8 is connected with the low-pressure shell 101 through a rolling bearing 4; the rotor piston 7 cooperates with the eccentric part of the crankshaft 8.

[0033] In this embodiment 1, the outer edge of the main bearing 5 is sealed to the inner ring 17 of the high-pressure housing end face of the high-pressure housing 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 to the inner ring 17 of the high-pressure housing end face of the high-pressure housing 102. The main bearing flange 16 is fixed to the high-pressure housing 102 by fasteners, and a second sealing gasket is provided between the end face of the main bearing flange 16 and the inner ring 17 of the high-pressure housing end face of the high-pressure housing 102.

[0034] This embodiment 1 also provides another implementation method, specifically: the first sealing gasket 22 and the second sealing gasket are an integral structure.

[0035] The muffler 10 is mounted on the main bearing 5, and a muffler mounting hole 19 is provided in the center of the muffler 10, as shown in the attached figure. Figure 3 As shown; wherein, the main bearing 5 is sealed to the silencing cover assembly hole 19.

[0036] In this embodiment 1, the low-pressure housing 101 is provided with a compressor inlet 13, which is connected to the low-pressure chamber 11; the high-pressure housing 102 is provided with a compressor exhaust port 15, which is connected to the high-pressure chamber 12.

[0037] Explanation of the principle:

[0038] In the vehicle-mounted horizontal rotary compressor described in Embodiment 1, a first sealing gasket 22 is used to achieve a sealing fit between the outer ring 21 of the high-pressure housing end face and the end face 20 of the low-pressure housing. A second sealing gasket is used to achieve a seal between the end face of the main bearing flange 16 and the inner ring 17 of the high-pressure housing end face of the high-pressure housing 102. This optimizes the existing low-pressure sealing position and high-pressure sealing position of the low-pressure housing 101 and the low-pressure housing 102 into a single low-pressure sealing structure with the same cross section. By improving the structure, the number of sealing gaskets is reduced, which greatly reduces the process difficulty and can better solve the problems of long high-pressure sealing verification cycle and high difficulty. The outer edge of the main bearing 5 is fixed to the high-pressure housing 102 and the high-pressure housing and the low-pressure housing with fasteners.

[0039] The vehicle-mounted horizontal rotary compressor described in Embodiment 1 has its main bearing flange mounted on the high-pressure housing, and the low-pressure housing and the outer edge end face of the high-pressure housing sealed together. This optimizes the two sealing positions on both sides of the main bearing, namely the high-pressure and low-pressure, into a single low-pressure sealing structure, which effectively reduces the difficulty of the process and better solves the problem of high-pressure sealing leakage.

[0040] Example 2

[0041] As attached Figure 2 As shown in Embodiment 2, a vehicle-mounted horizontal rotary compressor includes a housing 1 and a motor assembly 2 and a pump assembly 3 disposed within the housing 1. The housing 1 includes a low-pressure housing 101 and a high-pressure housing 102 that are sealed together, and the interior of the housing 1 defines a receiving cavity. The receiving cavity includes a low-pressure cavity 11 and a high-pressure cavity 12. The low-pressure cavity 11 is formed by the low-pressure housing 101, and the high-pressure cavity 12 is formed by the high-pressure housing 102. The motor assembly 2 is installed in the low-pressure housing 101 and placed within the low-pressure cavity 11. The pump assembly 3 is installed in the high-pressure housing 102 and placed within the high-pressure cavity 12.

[0042] The low-pressure housing 101 is provided with a first opening, and the high-pressure housing 102 is provided with a second opening; the first opening and the second opening communicate to form a receiving cavity; wherein, the low-pressure housing end face 20 of the low-pressure housing 101 is sealed to the outer ring 21 of the high-pressure housing end face of the high-pressure housing 102; preferably, the low-pressure housing 101 and the high-pressure housing 102 are fixedly connected by fasteners, and 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.

[0043] The motor assembly 2 includes a motor stator 201 and a motor rotor 202. The motor stator 201 is installed inside the low-pressure housing 101. The motor rotor 202 is concentrically assembled inside the motor stator 201 and disposed on the outer periphery of the long shaft portion of the crankshaft 8 in the pump body assembly 3 to drive the crankshaft 8 to rotate.

[0044] 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 muffler 10. The cylinder 9 is installed inside the high-pressure housing 102, and the working chamber 14 of the cylinder 9 is located inside the high-pressure chamber 12. The main bearing 5 and the secondary bearing 6 are respectively located on both sides of the cylinder 9, and the rolling piston 7 is located inside the working chamber 14 of the cylinder 9. The main bearing 5 cooperates with the long shaft portion of the crankshaft 8, and the secondary bearing 6 cooperates with the short shaft portion of the crankshaft 8. The end of the long shaft 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.

[0045] The muffler 10 is mounted on the main bearing 5, and a muffler mounting hole 19 is provided in the center of the muffler 10, as shown in the attached figure. Figure 3As shown; wherein, the main bearing 5 is sealed to the mounting hole 19 of the muffler shroud; the outer peripheral wall 18 of the muffler shroud 10 is sealed to the inner ring 17 of the high-pressure housing end face of the high-pressure housing 102; wherein, a second sealing gasket is used between the outer peripheral wall 18 of the muffler shroud and the inner ring 17 of the high-pressure housing end face, and the muffler shroud 10 and the high-pressure housing 102 are fixedly connected by fasteners.

[0046] This embodiment 2 also provides another implementation method, specifically: the first sealing gasket 22 and the second sealing gasket are an integral structure.

[0047] The low-pressure housing 101 is provided with a compressor inlet 13, which is connected to the low-pressure chamber 11; the high-pressure housing 102 is provided with a compressor exhaust port 15, which is connected to the high-pressure chamber 12.

[0048] In this embodiment 2, a first sealing gasket is used between the outer ring of the high-pressure side housing end face and the low-pressure side housing end face, and the high-pressure side housing and the low-pressure side housing are fixedly connected by fasteners. The silencer is mounted 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 side housing end face, and the silencer is fixedly connected to the high-pressure housing by fasteners. The assembly hole of the silencer is sealed with the main bearing. This optimizes the sealing position between the high-pressure housing and the low-pressure housing into a low-pressure sealing structure, greatly reducing the assembly process difficulty of the compressor, avoiding high-pressure side leakage, and ensuring the reliable operation of the compressor.

[0049] Example 3

[0050] This embodiment 3 provides a vehicle, including a vehicle body and a compressor mounted on the vehicle body; wherein the compressor is a vehicle-mounted horizontal rotary compressor as described in embodiment 1 or 2 above; wherein the assembly between the compressor and the vehicle body is similar to the assembly of existing compressors, and will not be described again here.

[0051] The vehicle-mounted horizontal rotary compressor of this utility model optimizes the original two sealing positions (high and low pressure) into a single low-pressure sealing structure. This structural improvement reduces the number of sealing gaskets, lowers the manufacturing difficulty, and effectively solves the problems of long verification cycles and high difficulty in high-pressure sealing. 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 equipped with air conditioning. The compressor can use refrigerants such as R744, R134a, R290, R410A, or R1234yf.

[0052] The above embodiments are merely one of the implementation methods to achieve the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions and other implementation methods that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model.

Claims

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

2. The vehicle-mounted horizontal rotary compressor according to claim 1, characterized in that, 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 to 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 outer ring (21) of the high-pressure housing end face and the end face (20) of the low-pressure housing. The low-pressure housing (101) and the high-pressure housing (102) are fixedly connected by fasteners. A second sealing gasket is provided between the end face of the main bearing flange (16) and the inner ring (17) of the high-pressure housing end face of the high-pressure housing (102).

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

5. A vehicle-mounted horizontal rotary compressor, characterized in that, It includes a housing (1) and a pump assembly (3) installed in the housing (1); the housing (1) includes a low-pressure housing (101) and a high-pressure housing (102) that are sealed together, and the pump assembly (3) is installed in the high-pressure chamber (12) formed by the high-pressure housing (102); The low-pressure housing end face (20) of the low-pressure housing (101) is sealed to the outer ring (21) of the high-pressure housing end face of the high-pressure housing (102); The pump body assembly (3) includes a main bearing (5), and a silencer (10) is provided on the main bearing (5); the outer peripheral wall (18) of the silencer (10) is sealed to the inner ring (17) of the high pressure housing end face of the high pressure housing (102).

6. A vehicle-mounted horizontal rotary compressor according to claim 5, characterized in that, The silencer cover (10) has a silencer cover assembly hole (19) at its center, and the main bearing (5) is sealed to the silencer cover assembly hole.

7. A 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 end face (20) of the low-pressure housing. The low-pressure housing (101) and the high-pressure housing (102) are fixedly connected by fasteners. A second sealing gasket is provided between the outer peripheral wall (18) of the silencing cover (10) and the inner ring (17) of the high-pressure housing end face of the high-pressure housing (102).

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

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

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

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