KR200203017Y1 - A scroll compressor - Google Patents

Abstract

The present invention relates to an electric field rotating fluid machine applied to the compression, expansion, and pumping of a fluid, and in particular, to prevent wear and operating noise of the rotating scrolls, respectively, as well as the first and second scrolls. It has the effect of increasing the efficiency of the fluid machine by rotating the drive and the driven rotary part through the inner gear, the main body is provided with a fluid chamber in the center, and mounted on one inner side of the main body, the drive shaft and the outer periphery A drive rotating part comprising a drive rotating plate formed with a gear and a first scroll, and a driven rotating plate mounted on an opposite side of the driving rotating part and geared to a driven shaft and an outer circumference which are eccentric with respect to the drive shaft, and the first scroll and the side wall are mutually different. A driven rotating part consisting of a second scroll which is assembled apart, and mounted inside the fluid chamber and driven, driven rotating Characterized in that the inner gear is engaged with the gear formed on the outer periphery of the plate.

Description

Electric rotating fluid machine {A scroll compressor}

The present invention relates to an electric field rotating fluid machine applied to the compression, expansion, and pumping of a fluid, and in particular, to prevent wear and operating noise of the rotating scrolls, respectively, as well as the first and second scrolls. It relates to an electric field rotating fluid machine that can increase the efficiency of the fluid machine by allowing the drive, driven rotary unit to rotate at the same time through the inner gear.

In general, the electric field rotating fluid machine applies the basic principle of the well-known scroll, and is produced as a product such as a compressor, an expander, a vacuum pump or a conveyer as it is applied to pumping as well as compression and expansion of a fluid. Accordingly, the prior art of a typical scroll fluid machine among electric field rotating fluid machines is as follows.

Conventional scroll fluid machine, using a compression method by the synchronous rotational movement of the fixed scroll member and the swinging scroll member, the fixed scroll member is fixed to the main body, the pivoting scroll member is connected to a separate drive unit, The pivoting scroll member is rotated by applying power to make a linear contact with the fixed scroll member to compress or expand the fluid.

Therefore, in recent years, an electric field rotating scroll fluid machine, which is a technology capable of increasing efficiency by rotating the fixed scroll member with a rotating scroll member, is known and in use.

Therefore, FIG. 8 is a configuration diagram schematically illustrating a fluid machine in which the fixed scroll member and the swing scroll member are interlocked and rotated.

The main shaft 100 is mounted on one side of the main body 100 and the driving shaft 102 is mounted on the other side, and the support shaft 103 is mounted at an eccentric position with the driving shaft 102. ) Is mounted at the end of the drive unit 101 to receive the rotational force of the driving means 101 and to the inside of which the scroll 201 protrudes, and to the end of the support shaft 103 and to the inside of the scroll 301. ) Is characterized by consisting of a driven scroll member 300 is protruding.

In particular, the inlet port (HH) is formed in the center of the drive shaft 102, the discharge port (OH) for discharging the compressed fluid is formed on the outside of the main body (100).

As shown in FIG. 9, the plurality of parts are in close contact with each other on sidewalls of the scrolls 201 and 301 formed in the driving scroll member 200 and the driven scroll member 300, and thus, the driving scroll member 200. When the drive shaft 102 is connected to the rotating, the driving scroll member 200, as well as the driven scroll member 300 is interlocked due to the adhesion of the scroll (201,301) formed inside the driven, driven scroll member (200,300) To rotate.

Hereinafter, the operation of the electric field rotating fluid machine configured as described above.

8 and 9, when power is applied to the driving means mounted on one side of the main body 100, the driving shaft 102 is rotated so that the driving scroll member 200 is also interlocked. At the same time, as described above, the driven scroll member 200, which is eccentrically assembled to the driving scroll member 200, is also rotated in association with the support shaft 103 due to the frictional force of the scroll units 201 and 301. .

Therefore, after the fluid flows through the suction port IH formed at the center of the drive shaft 102, the fluid passes through the compression space formed by the scrolls 201 and 301 of the driving and driven scroll members 200 and 300. Then, the compressed fluid is supplied to the air conditioning line (not shown) through the discharge port OH formed on the outside of the main body 100.

However, in the conventional electric-field rotating fluid machine having the above-described technique, sliding is performed through surface contact during the interlocking rotation of the driving scroll member and the driven scroll member, so that the driving scroll member is formed inside the driven scroll member. The side walls of the scrolls were easily worn and had a problem of degrading the performance of the device.

In addition, due to the wear phenomenon has a problem that a large noise occurs during the operation of the device.

In addition, in the prior art, a lubricant is generally used to prevent the above-described wear of the scroll, but the lubricant is difficult to apply a precision fluid machine as it causes a sliding phenomenon of each scroll and prevents rotation of the driven scroll member. I had.

In addition, due to the above-mentioned reasons, the proper rotational force cannot be transmitted to the driven scroll member, and thus, the efficiency is lowered relative to the desired efficiency.

In addition, the side walls of the scrolls formed on the inner side of the driving and driven scroll members are able to apply a compressive fluid as a plurality of portions are in close contact with each other. I had this impossible problem.

The present invention is designed to solve the above problems, by rotating the first scroll and the second scroll at the same time through the inner gear, and by allowing the sidewalls of the respective scrolls constituting the drive, driven rotary unit to be separated from each other, It is an object of the present invention to provide an electric field rotating fluid machine capable of preventing the degradation of the performance of the device by preventing wear due to the surface contact of the scroll portion.

In addition, as the side walls of the respective scrolls formed on the inside of the drive and driven scroll member are rotated separately from each other, it is also intended to prevent noise caused by friction.

In addition, since there is no need for the use of a lubricant, there is also an object to prevent the mixing of the lubricant in the compression or transfer fluid.

In addition, as the driven rotary part is rotated separately, it is also an object to provide a fluid machine having a high efficiency corresponding to the desired efficiency.

In addition, as the side walls of the respective scrolls are separated, the scrolls have a purpose that can be applied to a fluid machine such as compressing or conveying a non-compressible fluid such as water as well as a compressive fluid.

The present invention for achieving the above object, the main body is provided with a fluid chamber in the center, the drive rotary part consisting of a drive rotating plate and a first scroll mounted on the inner side of the main body and the gear formed on the drive shaft and the outer periphery And a driven rotating plate mounted on an opposite side of the driving rotating part, the driven rotating plate being eccentric with respect to the driving shaft, and a driven rotating plate formed with gears on the outer circumference, and a second scroll assembled with the first scroll and the side wall separated from each other. It is characterized in that the inner gear is mounted to the inside of the fluid chamber and engaged with the gear formed on the outer periphery of the drive, driven rotary plate.

1 is a perspective view showing an electric field rotating fluid machine of the present invention.

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

Figure 3 is an enlarged view of the main part of the present invention.

4 is an enlarged view of a portion B of FIG. 2;

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

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

7 is a schematic view showing another embodiment of the electric field rotating fluid machine according to the present invention

Degree.

8 is a schematic view showing a conventional scroll fluid machine.

9 is a cross-sectional view taken along the line E-E of FIG. 8.

Explanation of symbols for main parts of the drawings

1: main body

11: fluid chamber

111; Discharge hole, 112: fluid passage

2: drive rotation part

21: drive shaft

22: driving rotary plate

221: gear

S1: First scroll

3: driven rotary part

31: driven shaft

311: suction pipe

32: driven rotating plate

321: gear

S2: second scroll

4: inner gear

41: first gear unit

42: second gear unit

43: protrusion

431: Internal protrusion hole

5: gear

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

1 is a perspective view showing an electric field rotating fluid machine of the present invention, and FIG. 2 is a cross-sectional view taken along line A-A of FIG.

A main body (1) having a fluid passageway (112) through which compressed fluid is discharged and a fluid chamber (11) in which discharge holes (111) are formed; It is mounted on one side of the inside of the main body 1, the drive shaft 21 is rotated through a separate drive means (not shown), is fixed to the inner end of the drive shaft 21 is formed in the outer peripheral portion of the gear 221 A drive rotary part 2 composed of a drive rotary plate 22 and a first scroll S1 formed inside the drive rotary plate 22; The driven rotary plate is mounted on the opposite side of the drive rotary part 2, is fixed to the driven shaft 31 eccentric with respect to the drive shaft 21, the inner end of the driven shaft 31, the gear 321 is formed on the outer peripheral portion (32) and a driven rotating part (3) formed inside the driven rotating plate (32), the second scroll (S2) assembled with the first scroll (S1) and sidewalls separated from each other; It is mounted inside the fluid chamber 11 and meshes with gears 221 and 321 formed at the outer periphery of the drive and driven rotary plates 22 and 32, and transmits the power of the drive rotary part 2 to the driven rotary part 3. It is characterized by consisting of a gear (4).

In particular, the suction shaft 311 is mounted inside the driven shaft 31 of the driven rotating part 3, which is separated from the driven shaft 31, so that the suction pipe 311 remains stopped even when the driven shaft 31 is rotated. As a result, the vortex phenomenon does not occur when the fluid is sucked.

Further, a plurality of bearings B for preventing friction and various packings for preventing leakage from the fluid chamber 11 between the drive shaft 21 and the outer surface of the driven shaft 31 and the main body 1. ) Is installed.

On the other hand, the discharge hole 111 formed in the main body 1 discharges the fluid compressed or conveyed from the first scroll (S1) and the second scroll (S2), it is connected to the air conditioning line (not shown).

3 is an enlarged view of a main part of the present invention, FIG. 4 is an enlarged view of a portion B of FIG. 2, and FIG. 5 is a cross-sectional view taken along line CC of FIG. 2, and the driving and driven rotary plates are formed on both inner surfaces of the inner gear 4. The first and second gear parts 41 and 42, in which the gears 221 and 321 of the 22 and 32 are interdigitated with each other, are formed symmetrically, and in the middle of the first and second gear parts 41 and 42. An internal discharge hole 431 is formed and a protrusion 43 is provided to block the inner periphery of the driving and driven rotary plates 22 and 32.

In particular, the diameters (D2, D3) of the teeth of the gears (221, 321) formed on the drive and driven rotary plates (22, 32) are formed by the first and second gear parts (41, 42) of the inner gear (4). It is formed relatively smaller than the diameter D1 of the end circle.

6 is a cross-sectional view taken along the line DD of FIG. 2, illustrating the first scroll S1 of the driving rotary plate 22 and the second scroll S2 of the driven rotary plate 32, which are fixed to the inner end of the driving shaft (see FIG. 2). It shows the assembled state. Accordingly, the start center a1 of the first scroll S1 and the start center a2 of the second scroll S2 are eccentrically positioned as described above, and the start center of the first scroll S1 is eccentric. The first and second scrolls S1 and S2 are symmetrically turned from each other at an intermediate point b between (a1) and the starting center a2 of the second scroll S2.

In forming the first and second scrolls S1 and S2, the sidewalls of the first and second scrolls S1 and S2 are not formed to be in close contact with each other, and the sidewalls of the first and second scrolls S1 and S2. Two or more expansion spaces G2 are formed between the two, and a plurality of gaps G1 are formed between the expansion spaces G2.

Hereinafter will be described the operational relationship of the present invention configured as described above.

As shown in FIGS. 1 to 5, when the driving shaft 21 is rotated by operating a driving means (not shown) connected to the driving shaft 21, the driving rotary plate fixed to the inner end of the driving shaft 21 ( 22 is rotated. Therefore, the inner gear 4 having the first gear portion 41 engaged with the gear 221 formed on the outer circumferential edge of the drive rotary plate 22 is rotated, thereby being formed on the other side of the inner surface of the inner gear 4. As the second gear part 42 is also rotated, the driven rotary plate 32 meshed with the second gear is also rotated in conjunction with the second gear part 42.

That is, the driving rotary plate 22 fixed to the drive shaft 21 and the driven rotary plate 32 fixed to the driven shaft 31 and the inner gear 4 are rotated at the same RPM in conjunction with each other.

Therefore, when the fluid flows through the suction pipe 312 formed in the center of the driven shaft 31, the introduced fluid is the first and second scrolls formed on the inside of the drive, driven rotary plate (31, 32) Compressed or forcedly passed through the (S1, S2) is supplied to the air conditioning line (not shown) through the discharge hole 111 formed in the fluid chamber 11 of the main body (1).

That is, when the fluid passes inside the driving and driven scroll members 2 and 3, a plurality of expansion spaces G2 and a plurality of gaps formed between sidewalls of the first and second scrolls S1 and S2 are provided. By moving along (G1), the introduced fluid can be compressed or forcedly transported.

Therefore, the first and second scrolls S1 and S2 are not in contact with the surface during operation, thereby preventing abrasion and noise, as well as preventing the deterioration of compression and transfer efficiency as the driven scroll member is rotated separately.

On the other hand, Figure 7 is a schematic diagram showing another embodiment of the electric field rotating fluid machine according to the present invention, the drive rotary part 2 is provided with the drive rotary plate 22 and the driven rotary unit 3 is provided with a driven rotary plate 32 ) Is assumed to be the same as described above.

Therefore, the gear 221 is formed at the outer circumferential edge of the drive rotary plate 22 which is mounted eccentrically with each other and the gear 321 is formed at the same time as the gear 321 formed at the outer circumferential edge of the driven rotary plate 32. (5) is characterized in that the mounting.

That is, when the driving shaft 21 is rotated by operating the driving means (not shown) connected to the driving shaft 21, the driving rotary plate 22 fixed to the inner end of the driving shaft 21 is rotated. Therefore, the gear 5 engaged with the gear 221 formed on the outer circumferential edge of the drive rotary plate 22 is rotated, so that the driven rotary plate 32 to which the gear 5 is engaged is also rotated in association with each other.

That is, the driving rotary plate 22 fixed to the drive shaft 21 and the driven rotary plate 32 fixed to the driven shaft 31 are interlocked with each other to rotate at the same RPM.

The present invention as described above, by mounting each of the scrolls formed in the drive, driven rotary unit separated from each other, there is an effect of preventing the wear of the scrolls to extend the life of the fluid machine.

In addition, by removing the friction factor to prevent noise, there is also an effect to provide a low noise fluid machine.

It also has the effect of preventing the discharge of the fluid mixed with the lubricant by eliminating the need for the lubricant.

In addition, by separately rotating the driven scroll member, there is an effect to provide a high-power electric field rotating fluid machine.

In addition, a gap is formed between the sidewalls of the respective scrolls, so that there is an effect that can be applied to a fluid machine such as compressing or conveying an incompressible fluid such as water.

Claims (7)

A main body 1 having a fluid passage 11 and a fluid passage 112 and a discharge hole 111 formed at a center thereof; The drive shaft 21 is mounted on one side of the main body 1, the drive shaft 21 is rotated through a separate drive means, the drive rotary plate 22 is fixed to the inner end of the drive shaft 21, the gear 221 is formed on the outer periphery ), And a drive rotary part 2 formed of a first scroll S1 formed inside the rotary plate 22; The driven rotary plate is mounted on the opposite side of the drive rotary part 2, is fixed to the driven shaft 31 eccentric with respect to the drive shaft 21, the inner end of the driven shaft 31, the gear 321 is formed on the outer peripheral portion (32) and a driven rotating part (3) formed inside the driven rotating plate (32), the second scroll (S2) assembled with the first scroll (S1) and sidewalls separated from each other; It is mounted inside the fluid chamber 11 and meshes with gears 221 and 321 formed at the outer periphery of the drive and driven rotary plates 22 and 32, and transmits the power of the drive rotary part 2 to the driven rotary part 3. Electric rotating fluid machine, characterized in that consisting of a gear (4). The first and second gear parts 41 and 42 of claim 1, wherein gears 221 and 321 of the driving and driven rotary plates 22 and 32 are interdigitated with each other on the inner surface of the inner gear 4. ) Is formed symmetrically, and an inner discharge hole 431 is formed in the middle of the first and second gear parts 41 and 42 and a protrusion 43 which blocks the inner periphery of the driving and driven rotary plates 22 and 32. Electromagnetic rotating fluid machine, characterized in that is provided. The diameter (D2, D3) of the tooth ends of the gears (221, 321) formed in the drive, driven rotary plate (22, 32) is the first and second gear parts of the inner gear (4). An electric field rotating fluid machine, characterized in that it is formed relatively smaller than the diameter (D1) of the tooth circle formed by (41, 42). 2. The electric field rotating fluid machine according to claim 1, wherein a suction pipe (311) separated from the driven shaft (31) is mounted inside the driven shaft (31) of the driven rotating part (3). The start center a1 of the first scroll S1 and the start center a1 of the second scroll S2 are eccentrically positioned, and the first and second scrolls S1 and S2. ) Are symmetrically pivoted from each other at the midpoint (b) of the start center (a1) of the first scroll (S1) and the start center (a2) of the second scroll (S2), and the first and second scrolls (S1, The side walls of S2 are not in close contact with each other, and a plurality of gaps G1 are disposed between two or more expansion spaces G2 and the expansion spaces G2 between the sidewalls of the first and second scrolls S1 and S2. Electromagnetic rotating fluid machine, characterized in that formed. The electric field rotating fluid according to claim 1, wherein the drive shaft (41) and the first and second drive gears (42,43) constituting the drive unit (4) are also rotated in a reverse direction to change the direction of the fluid. machine. The gear 5 of claim 1, wherein the gear 5, which is simultaneously engaged with the gear 221 formed on the outer circumferential edge of the drive rotary plate 22 and the gear 321 formed on the outer circumferential edge of the driven rotary plate 32, Electromagnetic rotating fluid machine, characterized in that the mounting.