KR200237194Y1 - A scroll compressor - Google Patents

Abstract

The present invention relates to a scroll fluid machine capable of minimizing noise as well as increasing the operating accuracy by precisely controlling the swinging swing path of the swinging member when the fluid machine is operated.

A housing having a fluid inlet formed at one side of the center and a fluid outlet formed at an outer side thereof, a fixed scroll symmetrically mounted at both sides of the housing, and having a space formed at the middle thereof, and a fixed scroll mounted at both sides of the fixed scroll Rocking scrolls are formed to be symmetrical to each other so as to be mounted on each other and a plurality of through holes through which fluid is moved around the center, and a scroll including a cam shaft mounted in the center of the rocking member and connected to a power source In the fluid machine, a vertical long hole is formed at a lower portion of the rocking member, and the vertical long hole has a fixed shaft through which both ends are fixed to both inner walls of the housing, and the vertical long hole is formed along an outer surface of the fixed shaft. The inner surface of the vertical slot and the outer surface of the fixed shaft are in close contact with each other so as to slide. It is characterized by.

Description

Scroll fluid machine

The present invention relates to a scroll fluid machine that is applied to the compression and expansion of the fluid and the pump action, and more specifically, in the operation of the fluid machine to precisely control the swing swing path of the swinging member to increase the operation accuracy, A scroll fluid machine capable of minimizing noise.

In general, electro-rotating fluid machines apply the basic principle of the well-known scroll, which refers to the production of products such as compressors, expanders, vacuum pumps, or conveyors as they are applied to pumping as well as compression and expansion of fluids. .

5a and 5b is an improvement of the "link scroll scroll machine" (hereinafter, referred to as a conventional design) of the Republic of Korea Patent Application No. 2000-27515 filed by the present applicant, first, the configuration will be described as follows.

It is mounted symmetrically on both sides of the housing 100 and is provided in the middle of the fixed scroll 200, the space portion 201 is formed, the space portion 201 is mounted on both sides of the fixed scroll 200 A rocking member 300 having a rocking scroll 301 which is symmetrical with each other so as to be operated, a cam shaft 400 mounted at the center of the rocking member 300 and connected to a power source, and an upper end of the rocking member 300. One end is fixed to the other end is fixed to the inside of the housing 100 is characterized in that consisting of the anti-rotation link 500 to allow the swinging member 300 is not rotated.

The fluid inlet 101 is formed at the center of the housing 100, and the fluid outlet 102 is formed at the outer side of the housing 100 so that the compressed fluid can be discharged through the interaction of the scroll.

Therefore, when operating the scroll fluid machine configured as described above, first, when rotating the cam shaft 400 mounted in the center of the rocking member 300, it is mounted on the rocking member 300 above the housing 100 As the anti-rotation link 500 is fixed to the) to perform each movement, the swinging member 300, which is mounted on the camshaft 400, swings regularly.

Therefore, in the state in which the fixed scroll 200 does not change its position, the swinging member 300 including the swinging scroll 301 is pivoted through the cam shaft 400 and the rotation preventing link 500. The fluid introduced into the housing 100 may be discharged after being compressed.

However, in operating the scroll fluid machine configured as described above, the oscillating member is operated through the camshaft and the anti-rotation link, the assembly error of the connecting portion for fixing the anti-rotation link and the operation error generated when the link is operated. Due to this, there was a difficulty in manufacturing a scroll fluid machine having high precision.

In addition, the anti-rotation link mounted on the upper side of the swinging member is rotated in conjunction with the camshaft, thereby causing noise when the scroll fluid machine is operated.

In addition, due to the large number of peripheral components due to the anti-rotation link mounted on the upper side of the flow member, there was also a problem that the scroll fluid machine is complicated.

The present invention is designed to solve the above problems, and forms a vertical long hole in the flow member, and the vertical long hole is equipped with a fixed shaft which is fixed to the housing and slides along the long hole, to increase the operation accuracy of the rocking member. It is an object to provide a fluid machine.

In addition, the vertical long hole and the fixed shaft has a purpose to prevent the generation of noise by operating in sliding contact with each other.

In addition, there is also an object to prevent direct friction between the fixed shaft and the vertical hole by mounting a packing or roller on the fixed shaft or by mounting a seal on the vertical hole.

Another object is to minimize the components of the scroll fluid machine by simply adding a fixed shaft to prevent rotation of the swinging member.

The present invention for achieving the above object, the fluid inlet is formed on one side of the center and the fluid outlet is formed on the outer side, the fixed scroll is mounted symmetrically on both sides of the inside of the housing and the space is formed in the middle; A rocking member mounted on the space part and having rocking scrolls which are symmetrical to each other so as to be mounted and operated on the fixed scrolls on both sides thereof, and a plurality of through holes through which fluid is moved around the center; In a scroll fluid machine including a cam shaft mounted in the center and connected to a power source, a vertical long hole is formed at a lower portion of the oscillating member, and the vertical long hole has a fixed shaft having both ends fixed to both inner walls of the housing. An inner surface of the vertical slot such that the vertical slot slides along an outer surface of the fixed shaft And the outer surface of the fixed shaft is configured to be in close contact with each other.

1 is a front sectional view showing a scroll fluid machine of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is a schematic cross-sectional view showing another embodiment of a fixed shaft according to the present invention.

Figure 4 is a schematic cross-sectional view showing another embodiment of the vertical long hole according to the present invention.

5 shows a conventional scroll fluid machine,

5a is a shear cross-sectional view,

5B is a cross-sectional view taken along the line B-B in FIG. 5A.

Explanation of symbols for main parts of the drawings

1: housing

11: fluid inlet

12: fluid outlet

13: inner wall

2: fixed scroll

21: space part

3: rocking member

31: rocking scroll

32: through hole

4: Camshaft

41: crankshaft

5: vertical long hole

51: sealing

6: fixed shaft

61: Packing

62: roller

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a front sectional view showing a scroll fluid machine of the present invention, Figure 2 is a cross-sectional view taken along the line A-A of Figure 1, first described the configuration as follows.

A fluid inlet 11 is formed at one side of the center, and a housing 1 having a fluid outlet 12 formed at an outer side thereof, and symmetrically mounted at both sides of the inside of the housing 1, and a space 21 is formed in the middle thereof. Fixed scroll (2) and the swing portion (31) mounted on the space portion (21) and symmetrical to each other so as to be mounted and operated on the fixed scroll (2), respectively, and the fluid around the center A scroll fluid machine comprising a rocking member (3) having a plurality of through holes (32) being moved and a camshaft (4) mounted at the center of the rocking member (3) and connected to a power source;

A vertical long hole 5 is formed at a lower portion of the rocking member 3, and a fixed shaft 6 through which both ends are fixed to both inner walls 13 of the housing 1 is inserted through the vertical long hole 5. The inner surface of the vertical hole 5 and the outer surface of the fixed shaft 6 are configured to be in close contact with each other such that the vertical long hole 5 slides along the outer surface of the fixed shaft 6.

In particular, it is reasonable that the camshaft 4 is composed of a crankshaft 41 so as to expand the space in which the fluid flows and the space for forming the rocking scroll 31 and the fixed scroll 2 of the rocking member 3.

In addition, the packing 61 is mounted on the outer surface of the fixed shaft 6 to prevent friction with the inner surface of the vertical long hole 5.

Hereinafter, the operation relationship of the present invention configured as described above are as follows.

As shown in Fig. 1 and Fig. 2, first, by operating the drive unit (not shown) to rotate the crankshaft 41 mounted in the center of the swinging member (3), formed in the lower portion of the swinging member (3) By repeating the operation of sliding the vertical long hole (5) up, down, left and right along the outer surface of the fixed shaft (6) mounted therein, the swinging member (3) mounted on the crankshaft (41) While drawing a certain path, the swinging movements correspond to the fixed scroll (2).

Therefore, in the state where the fixed scroll 2 does not change the position, the rocking member 3 including the rocking scroll 31 is connected to the crank shaft 41, the vertical long hole 5, and the fixed shaft 6. By the swinging swing through the fluid, the fluid is introduced into the housing 1 through the fluid inlet 11 formed at one side of the center of the housing 1, and then the introduced fluid is the swing scroll 31 and the fixed scroll ( After being compressed while passing between the side walls of 2), it is discharged to the outside of the housing 1 through the fluid outlet 12 formed on the outside of the housing (1).

That is, by precisely limiting the operation of the rocking member 3 in the vertical long hole 5 moved along the fixed shaft 6 as described above, it is possible to increase the precision of the scroll fluid machine.

Figure 3 shows another embodiment of the fixed shaft according to the present invention, by mounting a roller 62 on the outer surface of the fixed shaft 6, as well as preventing friction with the inner surface of the vertical long hole (4) Therefore, the operation of the scroll pump can minimize the noise.

In particular, the roller 62 includes all of the rolling bearings such as metal and resin, and also includes a single sliding bearing.

Figure 4 shows another embodiment of the vertical long hole according to the present invention, by mounting a sealing 51 on the inner surface of the vertical long hole 5, to prevent friction with the fixed shaft 6, as well as vertical Due to the damage of the long hole (5) it is possible to prevent the entire replacement of the rocking member (3) difficult to manufacture.

The present invention as described above, by precisely controlling the swinging swing of the rocking member through the vertical hole formed in the flow member and the fixed shaft inserted therein, there is an effect that can provide a scroll fluid machine having a high precision.

In addition, the vertical long hole and the fixed shaft has a sliding contact with each other there is an effect that can prevent the generation of noise during operation.

In addition, by mounting a packing or roller on the fixed shaft or by mounting a seal on the vertical long hole to prevent direct friction between the fixed shaft and the vertical long hole, there is an effect of prolonging the life of the fixed shaft and the swinging member.

In addition, by minimizing the components of the scroll fluid machine, there is an effect that can lower the production cost of the product.

Claims (5)

A fluid inlet 11 is formed at one side of the center, and a housing 1 having a fluid outlet 12 formed at an outer side thereof, and symmetrically mounted at both sides of the inside of the housing 1, and a space 21 is formed in the middle thereof. Fixed scroll (2) and the swing portion (31) mounted on the space portion (21) and symmetrical to each other so as to be mounted and operated on the fixed scroll (2), respectively, and the fluid around the center A scroll fluid machine comprising a rocking member (3) having a plurality of through holes (32) being moved and a cam shaft (4) mounted at the center of the rocking member (3) and connected to a power source; A vertical long hole 5 is formed below the rocking member 3, The vertical long hole (5) is inserted into the fixed shaft (6), both ends of which are fixed to both inner walls (13) of the housing (1), Scroll fluid machine, characterized in that the inner surface of the vertical hole (5) and the outer surface of the fixed shaft (6) is in close contact with each other such that the vertical long hole (5) slides along the outer surface of the fixed shaft (6). The scroll fluid machine according to claim 1, characterized in that a packing (61) is mounted on an outer surface of the fixed shaft (6) to prevent friction with an inner surface of the vertical long hole (5). 2. The scroll according to claim 1, characterized in that a roller (62) rotated on the fixed shaft (6) is mounted on the outer surface of the fixed shaft (5) to prevent friction with the inner surface of the vertical long hole (4). Fluid machinery. The scroll fluid machine according to claim 1, characterized in that a seal (51) is mounted on an inner surface of said vertical slot (5) to prevent friction with said fixed shaft (6). The scroll fluid machine according to claim 1, characterized in that the camshaft (4) consists of a crankshaft (41) so as to expand the inflow space of the fluid and the formation space of the scroll.