KR102191567B1 - Scroll compressor - Google Patents

Abstract

The present invention relates to a scroll compressor having a simple structure of an assembly portion and a wear-resistant structure capable of reducing abrasion of an orbiting scroll without increasing an assembly tolerance.
According to the present invention, there is provided a reinforcing structure for reinforcing a portion that is in surface contact with the orbiting plate by inserting a steel reinforcing plate on a thrust plate supporting the orbiting scroll in a metal insert method. Therefore, it is possible to reduce the wear of the friction surface of the thrust plate and the orbiting scroll with a simple reinforcing structure, and it is possible to reduce assembly tolerance and manufacturing cost.

Description

Scroll compressor

The present invention relates to a scroll compressor capable of sufficiently securing a refrigerant discharge space and an oil storage space by improving the structure of a rear housing.

In general, a scroll compressor includes a fixed scroll fixed to an inner space of a closed container, and a rotating scroll engaged with the fixed scroll for orbiting motion. The fixed scroll is provided with a fixed wrap protruding toward the orbiting scroll. The orbiting scroll is provided with an orbiting wrap protruding toward the fixed scroll. The scroll compressor is a compressor in which a compression chamber for compressing a refrigerant is formed between the fixed wrap and the orbiting wrap when the orbiting scroll rotates with respect to the fixed scroll.

Among the scroll compressors, in the horizontal scroll compressor, a shaft for rotating a motor is arranged parallel to an installation surface. Conventional scroll compressors generally have a'through-axis type' structure in which a fixed scroll is disposed on the rear housing side, and a shaft penetrates from the motor to the orbiting scroll and the fixed scroll and is coupled to the rear housing. However, recently, in order to reduce the number of parts and reduce manufacturing costs through the deletion of the main frame, a scroll compressor having a fixed scroll disposed on the motor side and a rotating scroll disposed on the rear housing side has been developed. An example of such a scroll compressor is shown in FIG. 1.

1 is a partial cross-sectional view showing an example of a conventional horizontal scroll compressor.

As shown in FIG. 1, in the scroll compressor 1, a shaft 40 for rotating a motor 30 is disposed in a main housing 10 horizontally. The orbiting scroll 50 is supported by the orbiting mechanism 60 on the rear housing 20 behind the main housing 10. The portion in which the orbiting scroll 50 is supported is referred to as a support frame 22. A fixed scroll 70 is disposed between the orbiting scroll 50 and the motor (), and a compression chamber 80 is formed between the fixed scroll 70 and the orbiting scroll 50 to compress the refrigerant.

The refrigerant introduced into one side of the main housing 10 is introduced into the compression chamber 80, compressed, and then discharged into the refrigerant discharge space 24 of the rear housing 20. The discharged refrigerant is discharged to the upper side of the rear housing 20 after the oil is separated by the oil separation structure, and the oil is collected in the oil storage space 26 under the rear housing 20.

However, in such a conventional scroll compressor, the rear housing 20 supports the orbiting scroll 50 and the orbiting mechanism 60 (the pivoting mechanism support portion 22), and at the same time, the refrigerant discharge space 24 and the oil storage space 26 are provided. Must be formed. Accordingly, it is difficult to reduce the size of the scroll compressor 1.

In addition, in the conventional scroll compressor 1, the diameter of the back pressure seal must be designed to form a suitable back pressure between the orbiting scroll 50 and the rear housing 20. In general, the diameter of the discharge back pressure seal (90) is formed at the level of 1/2 of the diameter of the orbiting scroll (the discharge pressure back pressure area corresponding to the axial gas force acting on the center of the orbiting scroll is based on the center of the orbiting scroll. Is about 1/2 level). When the intermediate pressure back pressure is added, the diameter of the discharge back pressure seal 90 becomes smaller.

However, since the diameter of the support frame 22 supporting the orbiting scroll 50 is determined by the diameter of the discharge back pressure seal 90, when the diameter of the discharge back pressure seal 90 is reduced, the refrigerant discharge space 24 and oil storage There is a problem that the space 26 is reduced.

However, because the size of the scroll compressor cannot be increased due to the limitation of the installation environment, the length of the rear housing cannot be increased. Therefore, it is necessary to secure a sufficient refrigerant discharge space and oil storage space without increasing the size of the scroll compressor.
Background art of the present invention is published in Korean Patent Laid-Open Publication No. 10-2014-0122557 (published on Oct. 20, 2014, title of the invention: horizontal scroll compressor).

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An object of the present invention is to provide a scroll compressor capable of sufficiently securing a refrigerant discharge space and an oil storage space.

It is also an object of the present invention to provide a scroll compressor capable of sufficiently securing a refrigerant discharge space and an oil storage space while reducing production cost and securing convenience in assembly.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention that are not mentioned can be understood by the following description, and will be more clearly understood by examples of the present invention. In addition, it will be easily understood that the objects and advantages of the present invention can be realized by the means shown in the claims and combinations thereof.

The scroll compressor according to the present invention comprises: a main housing defining an accommodation space; A driving unit for driving the compression unit; A compression unit for compressing a refrigerant; And an outer wall coupled to one end of the main housing, a support frame inserted into the main housing to support a pivoting mechanism for pivotably supporting the orbiting scroll, and a rear housing connecting the outer wall and the support frame. In the rear housing, an outer wall and a support frame are integrally formed with an inner wall, an upper region of the inner wall may be used as a refrigerant discharge unit through which refrigerant is discharged, and a lower region of the inner wall may be used as an oil storage unit in which oil is stored. Accordingly, the number of parts is reduced compared to the conventional structure, thereby improving assembly and reducing manufacturing cost.

In addition, since most of the rear housing is used as a refrigerant discharge space and an oil storage space, a sufficient discharge space may be secured.

The refrigerant compressed by the compression unit may be discharged through a discharge valve installed on the orbiting scroll and introduced into the rear housing. Alternatively, the refrigerant compressed by the compression unit may be installed at a position in which a discharge port is formed in the inner wall of the rear housing and opened and closed. Therefore, it is possible to reduce the weight of the orbiting scroll.

The scroll compressor according to the present invention may further include a partition wall extending from the inner wall of the rear housing. The refrigerant discharge space and the oil storage space are separated by the partition wall, so that oil is swept away and discharged when the refrigerant is discharged.

In the scroll compressor according to the present invention, a support frame for supporting an orbiting scroll is integrally formed with a rear housing by a casting method, and has a simple and compact shape. Therefore, by reducing the number of parts, there is an effect of improving assembly and reducing manufacturing cost.

In addition, since the scroll compressor according to the present invention uses most of the rear housing as a refrigerant discharge space and an oil storage space, there is an advantage of securing a sufficient discharge space.

In addition, the scroll compressor according to the present invention has the effect of improving the design freedom of the orbiting scroll by installing the discharge valve on the rear housing. Accordingly, it is possible to reduce the weight of the orbiting scroll and the weight of the balance weight, which has a great effect in reducing the weight of the scroll compressor.

In addition to the above-described effects, specific effects of the present invention will be described together while describing specific details for carrying out the present invention.

1 is a partial cross-sectional view showing an example of a conventional horizontal scroll compressor.
2 is a perspective view showing an example of a horizontal scroll compressor according to the first embodiment of the present invention.
3 is a partial cross-sectional view of the horizontal scroll compressor according to FIG. 2.
4 is a perspective view illustrating a rear housing of the horizontal scroll compressor according to FIG. 2.
5 is a partial cross-sectional view showing an example of a horizontal scroll compressor according to a second embodiment of the present invention.
6 is a perspective view showing a rear housing of a horizontal scroll compressor according to a third embodiment of the present invention.
7 is a schematic diagram illustrating a refrigerant discharge unit and an oil storage unit of the horizontal scroll compressor according to FIG. 6.

The above-described objects, features, and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, one of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description will be omitted. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar elements.

Hereinafter, it means that an arbitrary component is disposed on the "top (or lower)" of the component or the "top (or lower)" of the component, the arbitrary component is arranged in contact with the top (or bottom) of the component. In addition, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, when a component is described as being "connected", "coupled" or "connected" to another component, the components may be directly connected or connected to each other, but other components are "interposed" between each component. It is to be understood that "or, each component may be "connected", "coupled" or "connected" through other components.

2 is a perspective view showing an example of a horizontal scroll compressor according to the first embodiment of the present invention. 3 is a partial cross-sectional view of the horizontal scroll compressor according to FIG. 2. 4 is a perspective view illustrating a rear housing of the horizontal scroll compressor according to FIG. 2.

First, the structure of the horizontal scroll compressor according to the present invention will be described.

Hereinafter, the term'refrigerant' is defined as a refrigerant containing oil unless otherwise stated that the oil is separated.

2 and 3, the scroll compressor P according to an embodiment of the present invention includes a main housing 100 and a rear housing 300 that are coupled to each other to form an accommodation space, and a main housing 100. It includes an inverter assembly 200 that is coupled to one side of the) to control the scroll compressor (P). For convenience, the main housing 100 side is defined as the front side and the rear housing 300 side as the rear side. The compression unit 500 and the driving unit 400 are installed in the receiving space on the side of the main housing 100.

The main housing 100 forms a substantially cylindrical appearance that is open in the front-rear direction. The main housing 100 is disposed so that the radial direction is perpendicular to the longitudinal direction of the drive shaft 430. That is, the main housing 100 and the rear housing 300 are disposed in a lying state. A scroll compressor in which a radial direction of the main housing 100 and the rear housing 300 is disposed perpendicular to the longitudinal direction of the drive shaft 430 is defined as a horizontal scroll compressor. The horizontal scroll compressor can be applied to compress a refrigerant used in an air conditioner of an automobile.

In general, a horizontal scroll compressor is provided with a main frame to support the axial pressure generated in the compression unit. However, in the scroll compressor P according to an embodiment of the present invention, a main frame and a fixed scroll 510 are integrally formed. This scroll compressor (P) may be defined as a frame scroll compressor. That is, the scroll compressor P described in the present invention is a scroll compressor in which a main frame and a fixed scroll 510 are integrally formed, and the main housing 100 and the rear housing 300 are disposed horizontally.

In the scroll compressor P of the present invention, the fixed scroll 510 is disposed on the drive motor 410 side, and the orbiting scroll 530 is disposed on the rear housing 300 side. The rear housing 300 supports a plurality of orbiting mechanisms 550 for orbiting the orbiting scroll 530. A back pressure chamber (not shown) for pressing the orbiting scroll 530 toward the fixed scroll 510 is formed between the rear housing 300 and the orbiting scroll 530. In addition, a refrigerant discharge part 302 from which the refrigerant is discharged and an oil storage part 304 for storing lubricating oil are formed in the rear housing 300 (a detailed structure of the rear housing will be described later).

The driving unit 400 includes a driving motor 410 generating rotational force, a driving shaft 430 rotating by the driving motor 410, and a main bearing 450 and a balance weight 470 coupled to the driving shaft 430. Include. The refrigerant flows into one side of the main housing 100 and is delivered to the compression unit 500 through the driving unit 400.

One end of the drive shaft 430 is rotatably coupled to the inner front of the main housing 100 and the other end passes through the drive motor 410 and extends toward the compression unit 500. The other end of the driving shaft 430 passes through the fixed scroll 510 and extends to the orbiting scroll 530 and is coupled to the orbiting scroll 530. The rotational force of the drive motor 410 is transmitted to the orbiting scroll 530 through the drive shaft 430.

The compression unit 500 includes a fixed scroll 510 through which the drive shaft 430 passes, an orbiting scroll 530 for orbiting with respect to the fixed scroll, and a plurality of orbiting mechanisms 550 for orbiting the orbiting scroll 530. ), and a thrust plate (not shown) inserted between the orbiting scroll 530 and the rear housing 300 to support the orbiting scroll 530. The fixed scroll 510 is disposed on the driver 400 side, and the orbiting scroll 530 is disposed on the rear housing 300 side.

The fixed scroll 510 includes a fixed plate portion 512 having a substantially disk shape, and a fixed wrap 514 protruding from the fixed plate portion 512 toward the orbiting scroll 530. The fixed plate part 512 is coupled to or integrally formed with an inner side of the main housing 100. The fixed wrap 514 is formed to protrude in a spiral shape from the front surface of the fixed plate part 512. The orbiting wrap 534 of the orbiting scroll 530 to be described later is engaged with the fixed wrap 514 and coupled.

The orbiting scroll 530 includes an orbiting plate portion 532 having a substantially disk shape, and a orbiting wrap 534 protruding from the orbiting plate portion 532 toward the fixed scroll 510. The turning plate portion 532 is disposed to face the rear housing 300. An orbiting wrap 534 protrudes on the front surface of the orbiting plate portion 532. A compression chamber (not shown) is formed between the fixed wrap 514 and the orbiting wrap 534 to compress the refrigerant according to the orbiting motion of the orbiting scroll 530. A discharge port (not shown) and a discharge valve 570 are provided on the revolving wrap 534 so that the refrigerant may be discharged to the refrigerant discharge part 302 of the rear housing 300.

A plurality of circular grooves are formed on the rear surface of the turning plate portion 532. The turning mechanism 550 is inserted into this circular groove.

The pivoting mechanism 550 has a plurality of pins 552 and rings 554. The pin 552 moves only within the inner circumferential surface of the ring 554. A plurality of pins 552 prevent rotation of the orbiting scroll 530 and support the orbiting scroll 530 so as to orbit.

In order for the above-described refrigerant to be compressed smoothly, the orbiting scroll 530 must be kept in close contact with the fixed scroll 510. To this end, a back pressure seal 590 is inserted between the rear housing 300 and the orbiting scroll 530 to form a back pressure chamber (not shown) between the rear housing 300 and the orbiting scroll 530. To form.

In the scroll compressor P according to an embodiment of the present invention having the above-described configuration, the refrigerant flowing into one side of the main housing 100 is supplied to the compression unit 500 through the driving unit 400. The refrigerant compressed by the compression unit 500 is discharged to the refrigerant discharge unit 302 of the rear housing 300. The refrigerant discharged to the refrigerant discharge unit 302 is discharged to the outside of the rear housing 300 after oil is separated by an oil separation mechanism not shown in the drawing. The oil separated in the rear housing 300 is stored in the oil oil storage unit 304 and then re-supplied to the compression unit 500 to be used for lubrication.

Hereinafter, the structure of the rear housing according to the first embodiment of the present invention will be described in detail.

As shown in FIGS. 2 to 4, the rear housing 300 of the present invention is mounted on the rear of the main housing 100. The rear housing 300 includes an outer wall 310 forming an exterior, a support frame 330 for supporting the orbiting scroll 530, and an inner wall 350 connecting the outer wall 310 and the support frame 330. Include. The outer wall 310, the support frame 330, and the inner wall 350 are connected to each other, and have an approximately'H' shape in cross section based on FIG. 3. In addition, the rear housing 300 may further include a first sealing member 370 for separating the high-pressure part from which the refrigerant is compressed from the low-pressure part from which the refrigerant is discharged, and a second sealing member 380 for sealing the coupling part. .

The outer wall 310 has a disk shape having a predetermined thickness and may be made of the same material as the main housing 100. The outer wall 310 closes the open rear end of the main housing 100. Accordingly, the outer wall 310 is formed to have an outer diameter corresponding to the outer diameter of the main housing 100. The outer wall 310 is coupled to the rear end of the main housing 100 by a fastening member 390 such as a screw. A second sealing member 380 is inserted into the coupling portion between the outer wall 310 and the main housing 100 to prevent refrigerant leakage.

The second sealing member 380 has a ring shape corresponding to the shape of the rear end of the main housing 100 because the coupling portion needs to be sealed.

The fastening member 390 penetrates the second sealing member 380 from the outside of the outer wall 310 and is inserted to the rear end of the main housing 100 to couple the rear housing 300 to the main housing 100. A plurality of fastening members 390 may be provided.

The support frame 330 is inserted into the main housing 100. Therefore, the support frame 330 may have a disk shape having an outer diameter smaller than the inner diameter of the main housing 100 and smaller than the outer diameter of the outer wall 310. The support frame 330 may also be made of the same material as the main housing 100 or the orbiting scroll 530.

A back pressure seal 590 for forming the aforementioned back pressure chamber is inserted between the outer diameter portion of the support frame 330 and the main housing 100. The support frame 330 of the present invention is formed in a compact manner compared to a portion for supporting the turning mechanism 60 in the conventional rear housing 20 according to FIG. 1 (see section 22 of FIG. 1).

A groove (not shown) for supporting the turning mechanism 550 is formed on the front surface of the support frame 330. In addition, a first discharge port 332 through which the refrigerant discharged through the discharge valve 570 flows is formed in the front of the support frame 330. The first discharge port 332 communicates with a discharge flow path 334 to be described later. The outer wall 310 and the support frame 330 are connected to one by an inner wall 350.

The inner wall 350 is a part connecting them between the outer wall 310 and the support frame 330. The inner wall 350 has a cylindrical shape in which the radial cross section of the support frame 330 is approximately elliptical. The inner wall 350 is disposed to connect the outer wall 310 and the center of the support frame 330.

A second discharge port 336 is formed above the outer peripheral surface of the inner wall 350. The inner wall 350 has a discharge passage 334 formed therein, and both ends of the discharge passage 334 communicate with the first discharge port 332 and the second discharge port 336. Since the first discharge port 332 penetrates the plate surface of the support frame 330 and the second discharge port 336 is formed on the upper side of the inner wall 350, the discharge flow path 334 has a shape that is bent in a'b' shape.

The refrigerant discharged to the first discharge port 332 contains oil, and the refrigerant is discharged to the second discharge port 336 through the discharge flow path 334. An oil separation mechanism (not shown) may be connected to the second discharge port 336. After the oil contained in the refrigerant is separated by the oil separation mechanism, the gaseous refrigerant is discharged to the upper side of the rear housing 300. The separated oil falls between the outer wall 310 and the support frame 330 and is collected and stored under the inner wall 350.

Therefore, the upper area (the second outlet side) of the rear housing 300 divided by the inner wall 350 is defined as the refrigerant discharge unit 302, and the lower area of the inner wall 350 is defined as the oil storage unit 304. do.

The refrigerant discharge unit 302 and the oil storage unit 304 are not completely separated, but are partially partitioned by the inner wall 350. The refrigerant containing oil moves along the discharge passage 334 and thus is not discharged to the oil storage unit 304. In addition, the refrigerant from which oil has been separated is in a gaseous state and is guided to the upper side of the rear housing 300 by the oil separation mechanism, and thus does not flow into the oil storage unit 304. The separated oil falls due to gravity, so it is collected in the oil storage unit 304. Therefore, the refrigerant and oil are not mixed even if the refrigerant discharge unit 302 and the oil storage unit 304 are not completely partitioned by the inner wall 350.

Since the inner wall 350 allows the entire space of the rear housing 300 to be used as the refrigerant discharge unit 302 and the oil storage unit 304, a sufficient discharge space can be secured. In addition, the rear housing 300 of the present invention may have a discharge pressure back pressure area that is much larger than a conventional discharge pressure back pressure area (about 1/2 of the orbiting scroll diameter). If necessary, the diameter of the support frame 330 may be designed to be small, and the sizes of the refrigerant discharge unit 302 and the oil storage unit 304 may be changed by changing the position of the inner wall 350.

On the other hand, in the rear housing 300 of the present invention, the outer wall 310, the support frame 330, and the inner wall 350 are integrally formed by a casting method. Since the rear housing 300 has a cross section of'H' as shown in FIG. 3, it can be manufactured by a general casting method.

If the support frame has the same diameter as the outer wall, and the central portion is not connected by not the inner wall, it may be connected by a wall surface extending from the main housing. In this case, when viewed in cross section, since the discharge chamber has a closed structure in which a hollow is formed on one side of the'ㅁ'-shaped rear housing, it is impossible to manufacture by a general casting method. This shape includes an outer mold in the shape of a rear housing and an inner mold disposed therein, and the inner mold may be removed after die casting to form a single rear housing shape. However, the collapse casting method is very expensive, and since it is a clogged structure, it is difficult to design a complex structure such as an oil separation mechanism inside the discharge chamber.

Alternatively, the rear housing may be manufactured by manufacturing a separate support frame shape on the'C' shape frame and then combining them by assembling bolts. In this case, the rear housing can be implemented at a lower cost than the collapse casting method, but there is a problem in that assembly properties are deteriorated due to tight processing tolerances of parts such as parallelism and flatness of several mating surfaces and an increase in assembly man-hours. In addition, there is a problem that production cost increases due to an increase in the number of parts such as assembly bolts, and the advantage of the frame scroll compressor cannot be reduced, which is an advantage of the frame scroll compressor.

Therefore, as shown in FIG. 4, the support frame 330 having an outer diameter smaller than that of the outer wall 310 is provided, and the rear housing 300 is formed with a structure connecting them to the inner wall 350, thereby simplifying the structure and reducing the number of parts. It works. This structure can be applied to a general casting method, manufacturing cost is reduced, and a support structure for supporting the orbiting scroll 530 with one rear housing 300 can be implemented.

In the above-described embodiment, a structure in which the discharge valve 570 is formed on the orbiting scroll 530 has been described. However, the discharge valve 570 may be installed on the rear housing 300.

5 is a partial cross-sectional view showing an example of a horizontal scroll compressor according to the second embodiment of the present invention (a detailed description of the same configuration as the above-described embodiment will be omitted).

As shown in FIG. 5, according to the second embodiment of the present invention, the discharge valve 570 ′ may be installed to open and close the second discharge port 336 of the rear housing 300. At this time, the discharge valve 570 ′ is installed to open the discharge valve 570 ′ when the refrigerant is discharged to the second discharge port 336 through the discharge flow path 334.

When the discharge valve 570' is installed in the rear housing 300, there is no restriction on the position when designing the discharge port on the orbiting plate portion 532 of the orbiting scroll 530, thereby increasing design freedom. In addition, when the discharge valve 570' is installed in the rear housing 300, the weight of the orbiting scroll 530 can be reduced, and the weight of the balance weight 470 can also be reduced. It has a great effect on weight reduction.

In addition, since it is not necessary to consider the depth of the bolt tap for assembling the discharge valve 570 ′ when designing the turning plate part 532, it is helpful to reduce the thickness of the turning plate part 532.

In the above-described embodiment, a structure in which the refrigerant discharge unit 302 and the oil storage unit 304 of the rear housing 300 are partially separated by the inner wall 350 has been described. However, the refrigerant discharge unit 302 and the oil storage unit 304 may have a completely separate structure.

6 is a perspective view showing a rear housing of a horizontal scroll compressor according to a third embodiment of the present invention. 7 is a schematic diagram illustrating a refrigerant discharge unit and an oil storage unit of the horizontal scroll compressor according to FIG. 6.

6 and 7, the rear housing 300' according to the third embodiment of the present invention includes an outer wall 310' and a support frame 330', an inner wall 350' connecting them, and an inner wall. It further includes a partition wall 360' extending from 350'.

The partition wall 360 ′ may extend in a plate shape along the long diameter (long diameter) direction of the inner wall 350 ′. That is, the partition wall 360 ′ may be formed to block most of the refrigerant discharge unit 302 and the oil storage unit 304. Since the support frame 330 ′ has a smaller diameter than the outer wall 310 ′, the partition wall 360 ′ does not exceed the diameter of the support frame 330 ′ even if it is formed to have a maximum length (see FIG. 6 ). That is, the end position of the partition wall 360 ′ corresponds to the radially echoing end position of the support frame 330 ′.

Accordingly, the oil separated from the refrigerant flows down between the main housing 100 and the partition wall 360 ′ and collects in the oil storage unit 304. The refrigerant from which oil is separated is discharged to the upper side of the rear housing 300 after the oil is separated by the oil separation mechanism through the second discharge port 336 as in the above-described embodiment.

By providing the partition wall 360 ′, it is possible to improve a problem in which some oil is swept by the discharge gas having a high flow rate and is discharged. In addition, the refrigerant discharge unit 302 and the oil storage unit 304 can be separated without additional processing by changing only a part of the shape during casting to form the partition wall 360 ′.

As described above with reference to the drawings illustrated for the present invention, the present invention is not limited by the embodiments and drawings disclosed in the present specification, and various by a person skilled in the art within the scope of the technical idea of the present invention. It is obvious that transformation can be made. In addition, even if not explicitly described and described the effects of the configuration of the present invention while describing the embodiments of the present invention, it is natural that the predictable effects of the configuration should also be recognized.

P: scroll compressor 100: main housing
300: rear housing 302: refrigerant discharge part
304: oil storage unit 310: outer wall
330: support frame 332: first discharge port
334: discharge flow path 336: second discharge port
350: inner wall 370: first sealing member
380: second sealing member 390: fastening member
400: drive unit 500: compression unit
510: fixed scroll 530: orbiting scroll
550: turning mechanism 570: discharge valve
590: back pressure seal

Claims (15)

In the scroll compressor in which the radial direction of the main housing is disposed perpendicular to the longitudinal direction of the drive shaft,
A driving unit installed in the main housing and having a driving shaft rotated by a driving motor;
A fixed scroll through which the drive shaft is passed, a orbiting scroll that orbits with respect to the fixed scroll and is coupled to the drive shaft, and a plurality of orbiting mechanisms coupled to one side of the orbiting scroll to support the orbiting scroll so as to be able to orbit. A compression unit for compressing a refrigerant in a compression chamber formed between the fixed scroll and the orbiting scroll; And
An outer wall coupled to the open rear of the main housing, a support frame inserted into the main housing to support the turning mechanism, and a support frame disposed between the outer wall and the support frame to connect the outer wall and the support frame Including; a rear housing having an inner wall
The refrigerant passes through the support frame and the inner wall and is discharged to the upper surface of the inner wall,
The outer wall has an outer diameter corresponding to the outer diameter of the main housing, the support frame has an outer diameter smaller than the inner diameter of the main housing, the inner wall has an outer diameter smaller than the inner diameter of the support frame
Scroll compressor.
The method of claim 1,
The outer wall, the support frame, and the inner wall are integrally formed
Scroll compressor.
delete The method of claim 1,
In the support frame, a first discharge port through which the refrigerant discharged from the orbiting scroll flows is formed through the plate surface,
The inner wall includes a discharge passage communicating with the first discharge port and penetrating toward the upper side of the rear housing, and a second discharge port communicating with the discharge passage and penetrating toward the upper side of the rear housing,
The refrigerant is discharged through the first discharge port, the discharge flow path, and the second discharge port sequentially.
Scroll compressor.
The method of claim 4,
A discharge valve installed on the orbiting scroll, installed adjacent to the first discharge port, and discharged from the refrigerant compressed in the compression chamber;
Further comprising
Scroll compressor.
The method of claim 4,
A discharge valve installed on the rear housing to open and close the second discharge port to discharge the refrigerant passing through the discharge passage after being compressed in the compression chamber;
Further comprising
Scroll compressor.
The method of claim 1,
The rear housing
Further comprising a partition wall extending from the inner wall in a radial direction of the support frame to connect the outer wall and the support frame
Scroll compressor.
A main housing having a cylindrical shape with at least one open end formed therein;
A driving unit installed in the main housing and having a driving shaft rotated by a driving motor;
A fixed scroll through which the drive shaft is passed, a orbiting scroll that orbits with respect to the fixed scroll and is coupled to the drive shaft, and a plurality of orbiting mechanisms coupled to one side of the orbiting scroll to support the orbiting scroll so as to be able to pivot A compression unit in which a refrigerant is compressed in a compression chamber formed between the fixed scroll and the orbiting scroll; And
A disk-shaped outer wall coupled to an open end of the main housing; a disk-shaped support frame inserted into the main housing to support the turning mechanism; and the outer wall disposed between the outer wall and the support frame Including; a cylindrical rear housing having an inner wall connecting the support frame and,
The refrigerant passes through the support frame and the inner wall and is discharged to the upper surface of the inner wall.
Scroll compressor.
The method of claim 8,
The outer wall, the support frame and the inner wall are integrally formed by a casting method
Scroll compressor.
The method of claim 9,
The outer wall has an outer diameter corresponding to the outer diameter of the main housing, the support frame has an outer diameter smaller than the inner diameter of the main housing, the inner wall has an outer diameter smaller than the inner diameter of the support frame, and the cross section is circular or elliptical
Scroll compressor.
The method of claim 8,
The rear housing
A first discharge port penetrating through the plate surface of the support frame, a discharge passage formed on the inner wall, communicated with the first discharge port, and penetrated toward the upper side of the rear housing, and a discharge passage formed on the inner wall and communicated with the discharge passage And a second discharge port penetrating toward the upper side of the rear housing,
The refrigerant is discharged through the first discharge port, the discharge flow path, and the second discharge port sequentially.
Scroll compressor.
The method of claim 11,
A discharge valve installed on the orbiting scroll, installed adjacent to the first discharge port, and through which the refrigerant is discharged;
Further comprising
Scroll compressor.
The method of claim 11,
A discharge valve installed on the rear housing to open and close the second discharge port to discharge the refrigerant passing through the first discharge port and the discharge flow path;
Further comprising
Scroll compressor.
The method of claim 12 or 13,
The rear housing
Further comprising a partition wall extending from the inner wall in a radial direction of the support frame to connect the outer wall and the support frame
Scroll compressor.
The method of claim 14,
The bulkhead is
Scroll compressor, characterized in that the position of the end corresponds to the radial end of the support frame.

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