An in-line oil pump

Abstract

The utility model belongs to compressor oil pump technical field, concretely is a kind of embedded oil pump, including pump body, inner rotor and outer rotor, the pump body includes oil outlet and oil inlet, the outer rotor rotation is inserted in the inside of pump body, the inner rotor is engaged with the inside of outer rotor and is connected, the side of pump body close to oil outlet is embedded with sealing piece, the outside of pump body is slidably sleeved with support shaft seat;The setting of riveting pressure seal point can conveniently install and fix sealing piece, the setting of fixed convex strip can install and limit pump body, and installation disc can conveniently fix support shaft seat.The utility model is supported by the setting of support shaft seat structure, the outside of oil pump can be supported, and it is convenient to install and fix oil pump, so as to effectively improve the installation efficiency of oil pump.

Description

Technical Field

[0001] This utility model relates to the field of compressor oil pump technology, and in particular to an embedded oil pump. Background Technology

[0002] For variable frequency scroll compressors, when the frequency and speed change, different and appropriate oil quantities are required for each lubrication part of the compressor to ensure normal operation under various working conditions. The function of the oil pump is to provide the appropriate oil quantity according to the actual operating frequency and speed.

[0003] Currently, there are two types of oil supply methods for variable frequency compressor circuits: one is the high-pressure chamber type, which does not use an oil pump. This type places the motor and oil sump in a high-pressure, high-temperature chamber, relying on pressure difference to deliver oil to various lubrication points. The disadvantage of this method is that the oil is prone to deterioration under high-pressure, high-temperature conditions, and the amount of oil supplied depends entirely on the pressure difference, resulting in a mismatch between the actual oil supply and the oil demand at different speeds. Furthermore, the pressure difference can fail under certain conditions. The other type is the low-pressure chamber type, which uses an oil pump. This type places the motor and oil sump in a low-pressure, low-temperature chamber, with gear-type oil pumps being the mainstream method.

[0004] However, the existing compressor oil pump has a relatively simple external structure and lacks a certain supporting installation structure, which affects the installation efficiency of the oil pump. Utility Model Content

[0005] The purpose of this utility model is to solve the problem of the lack of external support and installation structure for oil pumps mentioned in the background art, and to propose an embedded oil pump.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An embedded oil pump includes a pump body, an inner rotor, and an outer rotor. The pump body includes an oil outlet and an oil inlet. The outer rotor is rotatably inserted inside the pump body. The inner rotor and the outer rotor are internally meshed. A sealing plate is embedded on the side of the pump body near the oil outlet. A support shaft seat is slidably sleeved on the outside of the pump body.

[0007] Preferably, the outer periphery of the sealing plate is provided with a plurality of riveting sealing points, and the pump body is provided with riveting grooves corresponding to the riveting sealing points.

[0008] Preferably, the outer wall of the pump body is provided with a plurality of fixed protrusions, and the inner wall of the support shaft seat is provided with a plurality of grooves corresponding to the fixed protrusions.

[0009] Preferably, the edge of the sealing sheet is provided with positioning mounting points and foolproof mounting points.

[0010] Preferably, the support shaft seat is provided with multiple fastening ports.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In this utility model, the support shaft seat structure can provide external support for the oil pump and facilitate the installation and fixing of the oil pump, thereby effectively improving the installation efficiency of the oil pump. 2. The setting of the riveting sealing point in this utility model can facilitate the installation and fixing of the sealing plate. At the same time, the setting of the fixing protrusion can limit the installation of the pump body, locate the installation point and the foolproof installation point, which facilitates the installation and fixing of the sealing plate. Attached Figure Description

[0012] Figure 1 This is a frontal three-dimensional structural diagram of an embedded oil pump proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the oil inlet in an embedded oil pump proposed in this utility model; Figure 3 This is a schematic diagram of the exploded structure of the pump body in an embedded oil pump proposed in this utility model.

[0013] In the diagram: 1 Pump body, 2 Inner rotor, 3 Outer rotor, 4 Oil outlet, 5 Oil inlet, 6 Sealing plate, 7 Support shaft seat, 8 Riveted sealing point, 9 Fixing protrusion, 10 Positioning mounting point, 11 Foolproof mounting point. Detailed Implementation

[0014] 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.

[0015] Reference Figure 1-3 An embedded oil pump includes a pump body 1, an inner rotor 2 and an outer rotor 3. The pump body 1 includes an oil outlet 4 and an oil inlet 5. The outer rotor 3 is rotatably inserted inside the pump body 1. The inner rotor 2 and the outer rotor 3 are internally meshed. In this embodiment, a sealing plate 6 is embedded on the side of the pump body 1 near the oil outlet 4, which can effectively prevent oil leakage and ensure stable internal pressure of the oil pump. The edge of the sealing plate 6 is provided with positioning mounting points 10 and foolproof mounting points 11, which facilitates the installation and fixing of the sealing plate 6. A support shaft seat 7 is slidably sleeved on the outside of the pump body 1 for supporting the pump body 1. The support shaft seat 7 is provided with multiple fastening ports, which facilitates the installation and fixing of the support shaft seat 7. Multiple fixing protrusions 9 are arranged around the outer wall of the pump body 1, and multiple grooves corresponding to the fixing protrusions 9 are provided on the inner wall of the support shaft seat 7, which facilitates the installation and positioning of the pump body 1. In this embodiment, the outer periphery of the sealing plate 6 is provided with multiple riveting sealing points 8, and the pump body 1 is provided with riveting grooves corresponding to the riveting sealing points 8, which facilitates the installation and fixing of the sealing plate 6.

[0016] In this embodiment, the setting of the riveting sealing point 8 can facilitate the installation and fixation of the sealing plate 6. At the same time, the setting of the fixing protrusion 9 can limit the installation of the pump body 1. The positioning mounting point 10 and the foolproof mounting point 11 facilitate the installation and fixation of the sealing plate 6.

[0017] In this embodiment, the support shaft seat structure can provide external support for the oil pump and facilitate its installation and fixation, thereby effectively improving the installation efficiency of the oil pump.

[0018] 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 embedded oil pump, comprising a pump body (1), an inner rotor (2), and an outer rotor (3), characterized in that: The pump body (1) includes an oil outlet (4) and an oil inlet (5). The outer rotor (3) is rotatably inserted inside the pump body (1). The inner rotor (2) is internally meshed with the outer rotor (3). A sealing plate (6) is embedded on the side of the pump body (1) near the oil outlet (4). A support shaft seat (7) is slidably sleeved on the outside of the pump body (1).

2. The embedded oil pump according to claim 1, characterized in that: The outer periphery of the sealing plate (6) is provided with multiple riveting sealing points (8), and the pump body (1) is provided with riveting grooves corresponding to the riveting sealing points (8).

3. An embedded oil pump according to claim 1, characterized in that: The outer wall of the pump body (1) is provided with a plurality of fixed protrusions (9), and the inner wall of the support shaft seat (7) is provided with a plurality of grooves corresponding to the fixed protrusions (9).

4. An embedded oil pump according to claim 1, characterized in that: The edge of the sealing sheet (6) is provided with a positioning mounting point (10) and a foolproof mounting point (11).

5. An embedded oil pump according to claim 1, characterized in that: The support shaft seat (7) is provided with multiple fastening ports.

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