Air conditioner oil pump with thrust structure

Abstract

The utility model belongs to the technical field of air condition compressors, and particularly relates to an air condition compressor oil pump with a thrust structure, which comprises a main pump body, an oil inlet and an oil outlet are respectively arranged on two sides of the middle of the main pump body, an outer rotor is fixedly inserted in the main pump body, an inner rotor is rotatably connected in the outer rotor, and the inner rotor is connected with the thrust structure. The end, close to the oil outlet, of the inner rotor is rotationally sleeved with a thrust bearing, the side, close to the oil outlet, of the main pump body is provided with an annular groove corresponding to the thrust bearing, and a fool-proof hole and a positioning hole corresponding to the thrust bearing are formed in the annular groove. According to the oil pump, the thrust bearing is arranged on the oil outlet side of the oil pump, the lubricating effect of the thrust bearing is better, the service life of the thrust bearing is prolonged, meanwhile, a thrust mechanism on an external linkage device can be replaced, the installation cost is effectively reduced, and the application range of the oil pump is widened.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning compressor technology, and in particular to an air conditioning oil pump with a thrust-resistant structure. Background Technology

[0002] The air conditioner compressor plays a crucial role in the air conditioning refrigerant circuit, compressing and driving the refrigerant. The compressor draws refrigerant from the low-pressure zone, compresses it, and sends it to the high-pressure zone for cooling and condensation. Heat is then released into the air through the heat exchange fins, causing the refrigerant to change from a gaseous to a liquid state, increasing its pressure. The oil pump in the air conditioner compressor delivers the refrigerant lubricating oil within the compressor.

[0003] However, the internal structure of existing air conditioning compressor oil pumps is relatively simple, and the oil inlet of the oil pump lacks a certain thrust mechanism, which affects the applicable range of the oil pump. Utility Model Content

[0004] The purpose of this invention is to solve the problem mentioned in the background art that the oil pump lacks a certain thrust-resistant mechanism at the oil inlet, and to propose an air conditioning oil pump with a thrust-resistant structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An air conditioning oil pump with a thrust structure includes a main pump body. An oil inlet and an oil outlet are respectively provided on both sides of the middle part of the main pump body. An outer rotor is fixedly inserted into the main pump body. An inner rotor is rotatably connected to the outer rotor. A thrust bearing is rotatably sleeved on one end of the inner rotor near the oil outlet. An annular groove corresponding to the thrust bearing is provided on the side of the main pump body near the oil outlet. The annular groove is provided with anti-fooling holes and positioning holes corresponding to the thrust bearing.

[0007] Preferably, the edge of the main pump body is provided with multiple stepped holes.

[0008] Preferably, the edge of the thrust bearing is fixedly connected with a thrust bearing riveting groove, and the annular groove is provided with a limiting groove corresponding to the thrust bearing riveting groove.

[0009] Preferably, a sealing plate is inserted between the thrust bearing and the inner rotor.

[0010] Preferably, the surface of the thrust bearing is coated with a CuSn+PTFE composite layer.

[0011] Preferably, the main pump body (1) is provided with a plurality of support ribs (11) around one end near the oil inlet (2).

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, a thrust bearing is installed on the oil outlet side of the oil pump. The thrust bearing has a better lubrication effect, which helps to extend the service life of the thrust bearing. At the same time, it can replace the thrust mechanism on the external connection device, thereby effectively reducing the installation cost and expanding the applicability of the oil pump. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of an air conditioning oil pump with a thrust structure proposed in this utility model.

[0015] Figure 2 This is an exploded structural diagram of an air conditioning oil pump with a thrust structure proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the back structure of an air conditioning oil pump with a thrust structure proposed in this utility model.

[0017] In the diagram: 1 Main pump body, 2 Oil inlet, 3 Oil outlet, 4 Annular groove, 5 Thrust bearing, 6 Sealing plate, 7 Stepped hole, 8 Thrust bearing riveting groove, 9 Outer rotor, 10 Inner rotor, 11 Support rib. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-3 An air conditioning oil pump with a thrust structure includes a main pump body 1. The edge of the main pump body 1 is provided with multiple stepped holes 7 to facilitate fixing the main pump body 1. The two sides of the middle part of the main pump body 1 are respectively provided with an oil inlet 2 and an oil outlet 3 for introducing and exporting lubricating oil. The end of the main pump body 1 near the oil inlet 2 is provided with multiple support ribs 11 for supporting the filter screen.

[0020] In this embodiment, an outer rotor 9 is fixedly inserted inside the main pump body 1, and an inner rotor 10 is rotatably connected inside the outer rotor 9. A thrust bearing 5 is rotatably sleeved at one end of the inner rotor 10 near the oil outlet 3, which can replace the thrust mechanism on the external connection device. The surface of the thrust bearing 5 is coated with a CuSn+PTFE composite layer to improve the service life of the thrust bearing 5. The annular groove 4 is provided with anti-fooling holes and positioning holes corresponding to the thrust bearing 5 to facilitate the installation of the thrust bearing 5.

[0021] In this embodiment, a sealing plate 6 is inserted between the thrust bearing 5 and the inner rotor 10 to ensure the sealing of the thrust bearing 5. The main pump body 1 is provided with an annular groove 4 corresponding to the thrust bearing 5 on the side near the oil outlet 3.

[0022] In this embodiment, the edge of the thrust bearing 5 is fixedly connected with a thrust bearing riveting groove 8, and the annular groove 4 is provided with a limiting groove corresponding to the thrust bearing riveting groove 8, which facilitates the installation and fixing of the thrust bearing 5.

[0023] In this embodiment, by providing a thrust bearing 5 on the oil outlet side of the oil pump, the lubrication effect of the thrust bearing 5 is better, which is beneficial to improving the service life of the thrust bearing 5. At the same time, it can replace the thrust mechanism on the external connection device, thereby effectively reducing the installation cost and expanding the applicability of the oil pump.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air conditioning oil pump with a thrust structure, comprising a main pump body (1), characterized in that: The main pump body (1) has an oil inlet (2) and an oil outlet (3) on both sides of the middle part. An outer rotor (9) is fixedly inserted inside the main pump body (1). An inner rotor (10) is rotatably connected inside the outer rotor (9). A thrust bearing (5) is rotatably sleeved at one end of the inner rotor (10) near the oil outlet (3). An annular groove (4) corresponding to the thrust bearing (5) is provided on one side of the main pump body (1) near the oil outlet (3). An anti-fool hole and a positioning hole corresponding to the thrust bearing (5) are provided in the annular groove (4).

2. An air conditioning oil pump with a thrust-resistant structure according to claim 1, characterized in that: The edge of the main pump body (1) is provided with multiple stepped holes (7).

3. An air conditioning oil pump with a thrust-resistant structure according to claim 1, characterized in that: The edge of the thrust bearing (5) is fixedly connected to a thrust bearing riveting groove (8), and the annular groove (4) is provided with a limiting groove corresponding to the thrust bearing riveting groove (8).

4. An air conditioning oil pump with a thrust-resistant structure according to claim 1, characterized in that: A sealing plate (6) is inserted between the thrust bearing (5) and the inner rotor (10).

5. An air conditioning oil pump with a thrust-resistant structure according to claim 1, characterized in that: The surface of the thrust bearing (5) is coated with a CuSn+PTFE composite layer.

6. An air conditioning oil pump with a thrust-resistant structure according to claim 1, characterized in that: The main pump body (1) is surrounded by multiple support ribs (11) at one end near the oil inlet (2).

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