Ultra-miniature compressor

Abstract

The utility model belongs to the technical field of compressors, and particularly relates to an ultra-miniature compressor which comprises a cavity, a movable disc is arranged in the cavity, an eccentric shaft is inserted into the circle center of the movable disc, and concave cavities surrounding the periphery of the eccentric shaft are formed in the peripheries of the upper end and the lower end of the movable disc; the cavity is formed in the movable disc so that more fluid can flow in the cavity conveniently, the cavity enables the periphery of the movable disc to be still in the state of abutting against the bottom cover and the upper cover, therefore, the movable disc cannot be affected by centrifugal force and movement inertia during deflection movement, the vibration amplitude of the movable disc and the shaking amplitude of the eccentric shaft are reduced, and the movable disc and the eccentric shaft move stably; according to the miniature compressor, noise is reduced, the movable disc plays a larger role in the smaller inner space of the cavity, the inner space of the miniature compressor is reasonably distributed, the size of the compressor can be reduced, the space is saved, and the problems of large noise, violent shaking, abrasion and breakage caused by unreasonable inner space layout of an existing miniature compressor are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and in particular relates to an ultra-micro compressor. Background Art

[0002] Compressors are used to compress fluids, which makes the molecules more compact and reduces the distance between them. This compresses the fluid volume, allowing more molecules to fit within the same volume. The newly added molecules squeeze the existing molecules, creating a reaction force within the same volume. The molecules collide with the inner walls of the space, increasing the fluid pressure within the same volume. The compressed fluid molecules undergo no chemical or physical changes, and their molecular properties remain unchanged. In some applications where space is limited, very small micro compressors are required to ensure stable operation within the confined environment.

[0003] Since the micro compressor is very small, the factor of saving space to the greatest extent must be considered during assembly. The distance between the moving disc and the inner walls of the upper and lower covers is designed to be too small. The moving disc and the inner walls of the upper and lower covers are very close to each other. When the eccentric shaft rotates, centrifugal force will be generated, causing shaking. When the moving disc deflects as the eccentric shaft rotates, it will vibrate. The moving disc will rub and collide with the inner walls of the upper and lower covers. The moving disc makes a lot of noise when it deflects, and it is also easy to cause wear on the upper and lower ends of the moving disc and the inner walls of the upper and lower end covers. If the distance between the moving disc and the inner walls of the upper and lower end covers is increased, the upper and lower ends of the moving disc will have more room to move between the upper and lower end covers. The moving disc is affected by the centrifugal force and the inertia of movement, causing the moving disc to show irregular movement posture changes. The irregular movement posture of the moving disc is more intense. The moving disc in turn drags and pulls the eccentric shaft, which will aggravate the amplitude of the eccentric shaft shaking and cause the eccentric shaft to break. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and solve the problems of loud noise, violent shaking, wear and breakage caused by unreasonable internal space layout of the existing micro compressor.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an ultra-micro compressor, comprising a chamber:

[0006] A moving disk is provided inside the chamber, an eccentric shaft is inserted through the center of the moving disk, concave cavities surrounding the eccentric shaft are provided around the upper and lower ends of the moving disk, the outer wall of the eccentric shaft is movably connected to the center of the moving disk, and a slider is movably connected between any side of the outer wall of the moving disk and any side of the inner wall of the chamber.

[0007] In a preferred technical solution of the present invention, a bottom cover and an upper cover are respectively provided at the upper and lower ends of the chamber, the upper end of the eccentric shaft passes through the outer end of the bottom cover, and the lower end of the eccentric shaft is rotatably connected to the inner wall of the upper cover.

[0008] In a better technical solution of the present invention, a plurality of first fastening bolts are threadedly connected between the upper cover and the chamber, a plurality of second fastening bolts are threadedly connected between the bottom cover and the chamber, and two second positioning pins passing through the periphery of the chamber are interspersed between the bottom cover and the upper cover, and the second positioning pins are arranged around the periphery of the moving disk.

[0009] In a preferred technical solution of the present invention, a first positioning pin is movably connected between the end of the slider and the inner wall of the chamber.

[0010] In a preferred technical solution of the present invention, a plurality of through holes are opened inside the movable disk, and the upper and lower sides of the plurality of through holes respectively penetrate into the interiors of the two adjacent upper and lower concave cavities.

[0011] In a preferred technical solution of the present invention, a first fluid inlet and outlet is provided on any side of the bottom cover surface, and a second fluid inlet and outlet is provided on any side of the upper cover surface, and the first fluid inlet and outlet and the second fluid inlet and outlet are communicated with the interior of the chamber.

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

[0013] The bottom cover and the upper cover seal the upper and lower ends of the chamber respectively, and the bottom cover and the upper cover seal the movable disk inside the chamber. The first fluid inlet and outlet and the second fluid inlet and outlet allow the fluid to flow continuously and directionally inside the chamber. The fluid contacts the movable disk inside the chamber. The bottom cover and the upper cover form a closed space inside the chamber. The movable disk is tightly assembled inside the chamber. The eccentric shaft uses the central axis between the upper cover and the bottom cover as the rotation center line to drive the movable disk to move inside the chamber. The movable disk is pulled by the slider when it moves inside the chamber. The slider allows the movable disk to swing inside the chamber as the eccentric shaft rotates. Any side around the movable disk contacts any side of the inner wall of the chamber in turn. The fluid contacts the surrounding of the moving movable disk inside the chamber. The movable disk periodically squeezes and relaxes the fluid inside the chamber, and the surrounding of the movable disk squeezes and relaxes the fluid between the inner wall of the chamber and the surrounding of the moving movable disk. The gap is compressed and released periodically, and the concave cavity forms a gap away from the bottom cover and the upper cover at the upper and lower ends of the center of the movable plate. The concave cavity separates the upper and lower ends of the center of the movable plate from the bottom cover and the upper cover by more than one centimeter. The movable plate opens the concave cavity to accommodate more fluid flowing inside the chamber. The concave cavity keeps the surrounding of the movable plate close to the bottom cover and the upper cover. Therefore, the movable plate will not be affected by the centrifugal force and motion inertia during the eccentric motion, which reduces the vibration amplitude of the movable plate and the shaking amplitude of the eccentric shaft. The movable plate and the eccentric shaft move smoothly, reduce noise, and make the smaller internal space of the chamber allow the movable plate to play a greater role, so that the internal space of the micro compressor becomes reasonably distributed, which can help the compressor to reduce the volume and save space, so that the compressor can be more miniaturized and more suitable for occasions with smaller space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0015] Figure 2 This is a top view of the internal structure of the utility model;

[0016] Figure 3 This is a bottom view of the internal structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the external structure of the chamber and the moving disk of the utility model;

[0018] Figure 5 This is a schematic diagram of the external structure of the dynamic disk of the utility model

[0019] Figure 6 This is the assembly drawing of the overall internal structure of the utility model;

[0020] Figure 7 This is an assembly effect diagram of the eccentric shaft of the utility model.

[0021] In the figure: 1. Chamber; 2. Bottom cover; 3. Upper cover; 4. Moving plate; 5. Concave cavity; 6. Slider; 7. First positioning pin; 8. Second positioning pin; 9. Eccentric shaft; 10. First fastening bolt; 11. Second fastening bolt; 12. First fluid inlet and outlet; 13. Through hole; 14. Second fluid inlet and outlet. DETAILED DESCRIPTION

[0022] For example 1, please refer to Figure 1-7 The utility model provides a technical solution: an ultra-micro compressor, comprising a chamber 1: a movable disc 4 is arranged inside the chamber 1, an eccentric shaft 9 is interspersed with the center of the movable disc 4, and concave cavities 5 surrounding the periphery of the eccentric shaft 9 are opened around the upper and lower ends of the movable disc 4, the outer wall of the eccentric shaft 9 is movably connected to the center of the movable disc 4, and a slider 6 is movably connected between any side of the outer wall of the movable disc 4 and any side of the inner wall of the chamber 1; a bottom cover 2 and an upper cover 3 are respectively arranged at the upper and lower ends of the chamber 1, the upper end of the eccentric shaft 9 passes through the outer end of the bottom cover 2, and the lower end of the eccentric shaft 9 is rotatably connected to the inner wall of the upper cover 3, a plurality of first fastening bolts 10 are threadedly connected between the upper cover 3 and the chamber 1, a plurality of second fastening bolts 11 are threadedly connected between the bottom cover 2 and the chamber 1, two second positioning pins 8 passing through the periphery of the chamber 1 are interspersed between the bottom cover 2 and the upper cover 3, the second positioning pins 8 are arranged around the periphery of the movable disc 4, and the second positioning pins 8 are used to align the bottom The cover 2 and the upper cover 3 are positioned so as to accurately cover the upper and lower ends of the chamber 1. The first fastening bolt 10 fastens the bottom cover 2 to the upper end of the chamber 1, and the second fastening bolt 11 fastens the upper cover 3 to the lower end of the chamber 1. The bottom cover 2 and the upper cover 3 seal the upper and lower ends of the chamber 1 respectively, and the bottom cover 2 and the upper cover 3 form a closed space inside the chamber 1. The bottom cover 2 and the upper cover 3 seal the moving disk 4 inside the chamber 1. A first fluid inlet and outlet 12 is provided on either side of the surface of the bottom cover 2, and a second fluid inlet and outlet 14 is provided on either side of the surface of the upper cover 3. The first fluid inlet and outlet 12 and the second fluid inlet and outlet 14 are connected to the interior of the chamber 1. The first fluid inlet and outlet 12 and the second fluid inlet and outlet 14 are connected to the interior of the chamber 1. The first fluid inlet and outlet 12 and the second fluid inlet and outlet 14 transport fluid (fluid refers to gas or liquid) to the inside of the chamber 1 through an external pipe, and the fluid contacts the moving disk 4 inside the chamber 1.

[0023] Embodiment 2, further explained based on the above embodiment: the middle section of the eccentric shaft 9 and the section placed at the center of the movable disk will deviate to either side. Since the middle section and the upper and lower sections of the eccentric shaft 9 respectively have two axes, the two axes are not on the same axis center. The upper and lower sections of the eccentric shaft 9 are not on the same vertical axis as the middle section, while the centers of the upper and lower sections of the eccentric shaft 9 are on the same vertical axis line. There is a spacing called eccentricity between the two axes, which makes the shape of the eccentric shaft 9 similar to a "crankshaft". The eccentric shaft 9 is externally connected to an electric motor for driving. The upper and lower ends of the eccentric shaft 9 respectively rotate with the center of the circle between the bottom cover and the upper cover as the rotation axis. The movable disk 4 moves as the eccentric shaft 9 rotates, and the movable disk 4 is moved by the slider 6 is pulled and pulled, and the slider 6 swings as the movable disk 4 deflects. The movable disk 4 performs periodic deflection motion inside the chamber 1. The angle between the slider 6 and the movable disk 4 changes periodically. The eccentric shaft 9 uses the central axis between the upper cover 3 and the bottom cover 2 as the rotation center line to drive the movable disk 4 to move inside the chamber 1. The movable disk 4 moves inside the chamber 1 and is pulled by the slider 6. The slider 6 allows the movable disk 4 to deflect as the eccentric shaft 9 rotates inside the chamber 1. A first positioning pin 7 is movably connected between the end of the slider 6 and the inner wall of the chamber 1. The slider 6 uses the first positioning pin 7 as a rotation reference point. At the same time, the slider 6 deflects along the first positioning pin 7. The first positioning pin 7 ensures that the slider 6 deflects smoothly. Any position around the movable disk 4 The sides contact with any side of the inner wall of the chamber 1 in turn, and the fluid enters the chamber 1 from the first fluid inlet and outlet 12. The fluid contacts the surrounding of the moving disk 4 inside the chamber 1. The moving disk 4 periodically squeezes and relaxes the fluid inside the chamber 1. The gap between the inner wall of the chamber 1 and the surrounding of the moving disk 4 is periodically compressed and released. The fluid enters the concave cavity 5 along the gap between the bottom cover 2 and the upper cover 3 inside the chamber 1. A plurality of through holes 13 are opened inside the moving disk 4. The upper and lower sides of the multiple through holes 13 are respectively connected to the upper and lower adjacent concave cavities 5. The through holes 13 will contact the fluid inside the chamber 1 as the moving disk 4 rotates and deflects. The fluid in the cavity When the passive disk 4 inside the chamber 1 is compressed, it will flow into the through hole 13, and when the fluid is released from the passive disk 4 inside the chamber 1, it will be sucked out from the through hole 13. Half of the pressure around the dynamic disk 4 will be positive and the other half will be negative. The fluid generates negative pressure and positive pressure inside the chamber 1, which change alternately in a periodic sinusoidal function, so that the fluid is pushed by the passive disk 4 inside the chamber 1 and performs periodic peristalsis. A pressure difference is generated between the head and tail ends of the chamber 1. The dynamic disk 4 compresses the fluid and discharges high-pressure fluid from the second fluid inlet and outlet 14, thereby causing the fluid to flow continuously and directionally inside the compressor, so that the first fluid inlet and outlet 12 and the second fluid inlet and outlet 14 can achieve the effect of continuous and directional flow of the fluid inside the chamber 1.

[0024] Embodiment 3, summarized based on the above embodiments: the concave cavity 5 forms a gap away from the bottom cover 2 and the upper cover 3 at the upper and lower ends of the center of the movable disk 4, and the concave cavity 5 separates the upper and lower ends of the center of the movable disk 4 from the bottom cover 2 and the upper cover 3 by more than one centimeter. The movable disk 4 opens the concave cavity 5 to accommodate more fluid flowing inside the chamber 1. The concave cavity 5 keeps the surrounding of the movable disk 4 close to the bottom cover 2 and the upper cover 3. Therefore, the movable disk 4 will not be affected by the centrifugal force and the inertia of the movement during the eccentric motion, thereby reducing the vibration amplitude of the movable disk 4 and the shaking amplitude of the eccentric shaft 9. The movable disk 4 and the eccentric shaft 9 move smoothly, reducing noise, and making the smaller internal space of the chamber 1 allow the movable disk 4 to play a greater role, so that the micro compressor The internal space becomes reasonably distributed, which can help the compressor to reduce its size and save space, making the compressor's external dimensions more miniaturized and more suitable for occasions with smaller spaces (small occasions mainly include: inside air-conditioning clothing, inside air-conditioning caps, inside narrow compartments inside various small mechanical equipment, etc.). The internal parts structure layout of the compressor is very streamlined and clever, which is conducive to making the internal parts structure of the compressor pocket-sized and ultra-miniaturized. The external dimensions of the compressor can be made smaller, and each dimension of each part structure can be as precise as the internal structure of a mechanical watch. The assembly accuracy can be higher than that of a mechanical watch, and the overall structure of the compressor is ultra-miniaturized.

[0025] Working principle: The eccentric shaft 9 is connected to an external motor for driving. The upper and lower ends of the eccentric shaft 9 rotate with the center of the circle between the bottom cover and the upper cover as the rotation axis. The movable disk 4 moves as the eccentric shaft 9 rotates. At the same time, the movable disk 4 is pulled by the slider 6. The slider 6 swings as the movable disk 4 deflects. The movable disk 4 performs periodic deflection motion inside the chamber 1. The angle between the slider 6 and the movable disk 4 changes periodically. The eccentric shaft 9 uses the center axis between the upper cover 3 and the bottom cover 2 as the rotation center line to drive the movable disk 4 to move inside the chamber 1. The movable disk 4 is pulled by the slider 6 when it moves inside the chamber 1. The slider 6 allows the movable disk 4 to deflect as the eccentric shaft 9 rotates inside the chamber 1. , the slider 6 uses the first positioning pin 7 as the rotation reference point, and the slider 6 deflects along the first positioning pin 7. The first positioning pin 7 ensures that the slider 6 deflects smoothly. Any side around the movable disk 4 contacts with any side of the inner wall of the chamber 1 in turn. The fluid enters the chamber 1 from the first fluid inlet and outlet 12. The fluid contacts the moving movable disk 4 inside the chamber 1. The movable disk 4 periodically squeezes and relaxes the fluid inside the chamber 1. The movable disk 4 periodically compresses and releases the fluid in the gap between the inner wall of the chamber 1 and the moving movable disk 4. The fluid enters the concave cavity 5 along the gap between the bottom cover 2 and the upper cover 3 inside the chamber 1. The through hole 13 follows The rotation and deflection of the movable disk 4 will contact the fluid inside the chamber 1. When the passive disk 4 inside the chamber 1 compresses the fluid, it will flow into the through hole 13. When the passive disk 4 inside the chamber 1 releases the fluid, it will be sucked out from the through hole 13. Half of the area around the movable disk 4 is positive pressure and the other half is negative pressure. The fluid generates negative pressure and positive pressure inside the chamber 1, which change alternately in a periodic sinusoidal function. The fluid is pushed by the passive disk 4 inside the chamber 1 and performs periodic peristalsis. A pressure difference is generated between the head and tail ends of the chamber 1. The movable disk 4 compresses the fluid and discharges the high-pressure fluid from the second fluid inlet and outlet 14. The concave cavity 5 forms a gap away from the bottom cover 2 and the upper cover 3 at the upper and lower ends of the center of the movable disk 4. The concave cavity 5 separates the upper and lower ends of the center of the movable disc 4 from the bottom cover 2 and the upper cover 3 by more than one centimeter respectively. The movable disc 4 opens the concave cavity 5 to accommodate more fluid to flow inside the chamber 1. The concave cavity 5 keeps the surrounding area of ​​the movable disc 4 close to the bottom cover 2 and the upper cover 3. Therefore, the movable disc 4 will not be affected by the centrifugal force and the inertia of the movement during the eccentric motion, thereby reducing the vibration amplitude of the movable disc 4 and the shaking amplitude of the eccentric shaft 9. The movable disc 4 and the eccentric shaft 9 move smoothly and reduce the noise, thereby making the fluid flow continuously and directionally inside the compressor, so that the first fluid inlet and outlet 12 and the second fluid inlet and outlet 14 can achieve the effect of making the fluid flow continuously and directionally inside the chamber 1.

Claims

1. An ultra-micro compressor, comprising a chamber (1), characterized in that: A moving disk (4) is provided inside the chamber (1), an eccentric shaft (9) is provided at the center of the moving disk (4), and concave cavities (5) surrounding the outer periphery of the eccentric shaft (9) are provided around the upper and lower ends of the moving disk (4). The outer wall of the eccentric shaft (9) is movably connected to the center of the moving disk (4), and a slider (6) is movably connected between any side of the outer wall of the moving disk (4) and any side of the inner wall of the chamber (1).

2. The ultra-micro compressor according to claim 1, wherein: The chamber (1) is provided with a bottom cover (2) and an upper cover (3) at the upper and lower ends respectively. The upper end of the eccentric shaft (9) passes through the outer end of the bottom cover (2), and the lower end of the eccentric shaft (9) is rotatably connected to the inner wall of the upper cover (3).

3. The ultra-micro compressor according to claim 2, characterized in that: A plurality of first fastening bolts (10) are threadedly connected between the upper cover (3) and the chamber (1), a plurality of second fastening bolts (11) are threadedly connected between the bottom cover (2) and the chamber (1), and two second positioning pins (8) passing through the periphery of the chamber (1) are interspersed between the bottom cover (2) and the upper cover (3), and the second positioning pins (8) are arranged around the periphery of the moving disk (4).

4. The ultra-micro compressor according to claim 1, wherein: A first positioning pin (7) is movably connected between the end of the slider (6) and the inner wall of the chamber (1).

5. The ultra-micro compressor according to claim 1, characterized in that: A plurality of through holes (13) are provided inside the movable disk (4), and the upper and lower sides of the plurality of through holes (13) respectively penetrate into the interiors of the two adjacent upper and lower concave cavities (5).

6. The ultra-micro compressor according to claim 2, characterized in that: A first fluid inlet and outlet (12) is provided on any side of the surface of the bottom cover (2), and a second fluid inlet and outlet (14) is provided on any side of the surface of the upper cover (3). The first fluid inlet and outlet (12) and the second fluid inlet and outlet (14) are in communication with the interior of the chamber (1).

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