A seat body component and a micro-compressor

Abstract

The utility model discloses a seat body component and miniature compressor, seat body component includes shell, installs the flange in the shell, and the inboard of shell is provided with the step seat, and the upper end surface of flange is set against the step seat, and the periphery of flange is in contact with the inner wall of shell, and the sidewall of shell is provided with the suction port, and the flange is provided with the air inlet, and the one end of air inlet is communicated with the suction port, and the other end of air inlet is communicated with the lower end surface of flange.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and more specifically, to a base component and a micro compressor. Background Technology

[0002] Miniature compressors refer to refrigeration compressors with a cooling capacity of less than 1KW. They are characterized by their miniature size, lightweight design, and superior durability. They operate quietly with almost no vibration, consume very little energy, and can be powered by batteries, vehicle power supplies, household power grids, and solar energy. They also feature stable output, precise control, and excellent adaptability, making them well-suited to meet the needs of various portable miniature thermal management systems.

[0003] The existing flange and housing are installed using a three-point welding connection, which may cause deformation of the parts due to welding stress, resulting in misalignment between the two and affecting the performance of the micro compressor. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a seat component and a micro compressor.

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

[0006] This utility model discloses a seat component, including a shell, a flange installed inside the shell, a stepped seat provided on the inner side of the shell, the upper end face of the flange abutting against the stepped seat, the outer periphery of the flange abutting against the inner wall of the shell, an air intake port provided on the side wall of the shell, an air inlet and a connecting hole provided on the flange, one end of the air inlet is connected to the air intake port, the other end of the air inlet is connected to the connecting hole, and the end of the connecting hole away from the air inlet is connected to the lower end face of the flange.

[0007] Furthermore, the flange is provided with an exhaust port, which connects the upper and lower end faces of the flange.

[0008] Furthermore, a shaft hole is provided in the middle of the flange, which is arranged along the axial direction of the flange and connects the upper and lower end faces of the flange.

[0009] Furthermore, an upper cavity and a lower cavity are respectively provided inside the outer casing, located above and below the flange, with a shaft hole connecting the upper cavity and the lower cavity, and an air intake port connected to the lower cavity.

[0010] Furthermore, the outer periphery of the upper end of the outer shell is provided with an upper recess that is arranged circumferentially thereon, and the thickness of the upper end of the upper recess is less than the thickness of the lower end.

[0011] Furthermore, the lower outer periphery of the outer casing is provided with a recessed portion arranged circumferentially thereon, and the thickness of the lower end of the recessed portion is less than the thickness of the upper end.

[0012] Furthermore, the flange is made using powder metallurgy pressing.

[0013] Furthermore, the flange is installed inside the housing using a heat-shrink method.

[0014] A miniature compressor includes the aforementioned housing component.

[0015] The beneficial effects of this utility model are: by using a heat-shrink method to combine the outer shell and the flange, the traditional compressor process of connecting the flange and the outer shell by three-point welding is eliminated, completely avoiding the deformation of parts caused by welding stress, greatly ensuring the coaxiality of the outer shell and the flange, thereby ensuring the coaxiality of the compressor pump body and the motor, and the assembly can be completed without positioning. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one structure of the seat component in this embodiment;

[0017] Figure 2 This is a cross-sectional view of the seat component in this embodiment.

[0018] Reference numerals: 1. Outer shell; 2. Flange; 3. Stepped seat; 4. Shaft hole; 5. Inlet; 6. Exhaust hole; 7. Upper recess; 8. Lower recess; 9. Upper cavity; 10. Lower cavity; 11. Inlet hole; 12. Connecting hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-2 As shown, a base component includes a housing 1, within which a flange 2 is installed. The flange 2 is formed by powder metallurgy and is installed into the housing 1 using a heat-fitting method. The heat-fitting method involves placing the housing 1 in an induction heating coil and heating it to 700-750℃, then holding it at that temperature. Thermal expansion increases the inner diameter by 0.05-0.1 mm. The flange 2 is then vertically pressed into the housing 1 at room temperature. A stepped seat 3 is provided on the inner side of the housing 1. During installation, the end face of the flange 2 abuts against the stepped seat 3. After cooling, the inner wall of the housing 1 abuts against the outer periphery of the flange 2, forming an interference fit.

[0021] An air intake port 5 is provided on the side wall of the outer casing 1, and an air inlet hole 11 and a connecting hole 12 are provided on the flange 2. The air intake port 5 is arranged radially along the outer casing 1, and the air inlet hole 11 is arranged radially along the flange 2. The connecting hole 12 is L-shaped. One end of the air inlet hole 11 is connected to the air intake port 5, and the other end of the air inlet hole 11 is connected to the connecting hole 12. The end of the connecting hole 12 away from the air inlet hole 11 is connected to the lower end face of the flange 2. An air intake pipe is installed at the air intake port 5. The air intake port 5 and the air inlet hole 11 are tapered holes, with the inner diameter smaller than the outer diameter. When the end of the air intake pipe is inserted into the air intake port 5 and the air inlet hole 11, it is squeezed, which reduces the gap and thus better presses against the inner wall of the air inlet hole 11, so that the end of the air intake pipe inserted into the air inlet hole 11 can be better fixed.

[0022] Furthermore, a vent hole 6 is provided on the flange 2, which connects the upper and lower end faces of the flange 2. The compressed air in the lower cavity 10 can directly reach the upper cavity through the vent hole 6, thereby accelerating the flow efficiency of the compressed air. A one-way venting device is provided on the upper end face of the vent hole to prevent the compressed gas from flowing in the opposite direction.

[0023] An upper cavity 9 and a lower cavity 10 are respectively located above and below the flange 2 within the outer casing 1. The upper cavity 9 extends through the top of the outer casing 1, and the lower cavity 10 extends through the bottom of the outer casing 1. The outer casing 1 can be used to install a motor, and the flange 2 can be used to install compression components such as cylinders and pistons. The intake port 5 is connected to the lower cavity 10.

[0024] A shaft hole 4 is provided in the middle of flange 2, and the shaft hole 4 is arranged along the axial direction of flange 2, connecting the upper and lower end faces of flange 2. The shaft hole 4 connects the upper cavity 9 and the lower cavity 10. The crankshaft is installed in the shaft hole 4, which also serves to limit the crankshaft and improve its stability during rotation.

[0025] Furthermore, the outer periphery of the upper end of the outer casing 1 is provided with an upper recess 7 arranged circumferentially thereon, the thickness of the upper end of the upper recess 7 being less than the thickness of the lower end. The outer periphery of the lower end of the outer casing 1 is provided with a lower recess 8 arranged circumferentially thereon, the thickness of the lower end of the lower recess 8 being less than the thickness of the upper end. The upper recess 7 and the lower recess 8 are provided to facilitate insertion into the upper and lower casing covers for fixation.

[0026] Furthermore, a miniature compressor includes the housing component described above.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A base component, characterized in that, The device includes an outer shell (1), a flange (2) installed inside the outer shell (1), a stepped seat (3) provided on the inner side of the outer shell (1), the upper end face of the flange (2) abutting against the stepped seat (3), the outer periphery of the flange (2) abutting against the inner wall of the outer shell (1), an air intake (5) is provided on the side wall of the outer shell (1), an air inlet (11) and a connecting hole (12) are provided on the flange (2), one end of the air inlet (11) is connected to the air intake (5), the other end of the air inlet (11) is connected to the connecting hole (12), and the end of the connecting hole (12) away from the air inlet (11) is connected to the lower end face of the flange (2); the flange (2) is installed inside the outer shell (1) by a heat fitting method; the air intake (5) and the air inlet (11) are both conical holes, and the diameter of the inner end of the air intake (5) and the air inlet (11) is smaller than the diameter of the outer end.

2. The seat component according to claim 1, characterized in that, The flange (2) is provided with an exhaust hole (6), which connects the upper and lower end faces of the flange (2).

3. The seat component according to claim 1, characterized in that, A shaft hole (4) is provided in the middle of the flange (2). The shaft hole (4) is arranged along the axial direction of the flange (2) and connects the upper and lower end faces of the flange (2).

4. The seat component according to claim 3, characterized in that, The outer casing (1) has an upper cavity (9) and a lower cavity (10) located above and below the flange (2). The shaft hole (4) connects the upper cavity (9) and the lower cavity (10). The air intake (5) is connected to the lower cavity (10).

5. A seat component according to claim 1, characterized in that, The outer periphery of the upper end of the outer shell (1) is provided with an upper recess (7) arranged along its circumference, and the thickness of the upper end of the upper recess (7) is less than the thickness of the lower end.

6. A seat component according to claim 1, characterized in that, The outer periphery of the lower end of the outer shell (1) is provided with a recessed portion (8) arranged along its circumference, and the thickness of the lower end of the recessed portion (8) is less than the thickness of the upper end.

7. A seat component according to claim 1, characterized in that, The flange (2) is made by powder metallurgy pressing.

8. A miniature compressor, characterized in that, Includes the seat component as described in any one of claims 1-7.

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