KR-102963935-B1 - SCROLL COMPRESSOR

KR102963935B1KR 102963935 B1KR102963935 B1KR 102963935B1KR-102963935-B1

Abstract

The present invention relates to a scroll compressor comprising: a housing; a motor that generates rotational force inside the housing; a shaft that is rotated by the motor; a pivot scroll that is pivotally moved by the shaft; a fixed scroll that is engaged with the pivot scroll and forms a compression chamber together with the pivot scroll; and a main frame that supports the pivot scroll; wherein the housing comprises a front housing and a rear housing that is fastened to the front housing and forms a receiving space in which the motor, the shaft, the pivot scroll, the fixed scroll, and the main frame are received together with the front housing, and a fastening member that fastens the front housing, the main frame, the fixed scroll, and the rear housing is inserted into a fastening member chamber partitioned from the receiving space, thereby preventing fluid inside the housing from leaking to the outside.

Inventors

곽정명
김용희

Assignees

한온시스템 주식회사

Dates

Publication Date: 20260513
Application Date: 20220503

Claims (16)

Housing; A motor that generates rotational force inside the above housing; A shaft rotated by the above motor; A pivot scroll that pivots by the above shaft; A fixed scroll that engages with the above-mentioned pivot scroll and forms a compression chamber together with the above-mentioned pivot scroll; and A main frame supporting the above-mentioned pivot scroll; including, The above housing includes a front housing and a rear housing that is fastened to the front housing and, together with the front housing, forms a receiving space in which the motor, the shaft, the pivoting scroll, the fixed scroll, and the main frame are received. A fastening member connecting the front housing, the main frame, the fixed scroll, and the rear housing is inserted into a fastening member chamber partitioned from the receiving space, and The rear housing includes a first hole penetrating the rear housing, and The fixed scroll includes a second hole that penetrates the fixed scroll and communicates with the first hole, and The main frame includes a third hole that penetrates the main frame and communicates with the second hole, and The above front housing includes a fourth hole that is recessed inwardly on the front housing and communicates with the third hole, and The above-described fastening member comprises a head portion supported on the outer surface of the rear housing and a leg portion extending from the head portion and inserted and fastened into the fourth hole passing through the first hole, the second hole and the third hole.
In paragraph 1, A scroll compressor in which the above-mentioned fastening member and the above-mentioned fastening member chamber are formed radially inward from the side plate of the rear housing.
In paragraph 1, A scroll compressor in which the fastening member chamber is isolated from the receiving space so that the fastening member is not exposed to the fluid filling the receiving space.
In paragraph 1, The above-mentioned fastening member is a scroll compressor that penetrates at least three different sealing members in the axial direction.
In paragraph 1, The above main frame and the above fixed scroll are a scroll compressor that receives axial force by the fastening member between the above front housing and the above rear housing.
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In paragraph 1, It further includes a first sealing member interposed between the rear housing and the fixed scroll, and The first sealing member comprises a scroll compressor including a first-1 portion surrounding a communication portion between the first hole and the second hole.
In Paragraph 7, The rear housing includes an intake chamber for receiving fluid to be introduced into the compression chamber and a discharge chamber for receiving fluid discharged from the compression chamber, and The above-mentioned first sealing member further comprises a first- and second portions that seal between the suction chamber and the discharge chamber, in a scroll compressor.
In paragraph 8, The above 1-1 portion is formed in multiple parts, and The above 1-2 portions are a scroll compressor formed integrally with the above plurality of 1-1 portions.
In paragraph 1, It further includes a second sealing member interposed between the fixed scroll and the main frame, and The scroll compressor, wherein the second sealing member comprises a second-1 portion surrounding the communication portion between the second hole and the third hole.
In Paragraph 10, The above 2-1 portion is formed in multiple parts, and A scroll compressor in which the second sealing member further comprises a second-2 portion formed integrally with the plurality of second-1 portions.
In paragraph 1, It further includes a third sealing member interposed between the front housing and the main frame and between the front housing and the rear housing, and The scroll compressor comprising the third sealing member, a third-1 portion surrounding the communication portion between the third hole and the fourth hole between the front housing and the main frame, and a third-2 portion sealing the space between the receiving space and the outside of the housing between the front housing and the rear housing.
In Paragraph 12, The above 3-1 portion is formed in multiple parts, and The above 3-2 portion is a scroll compressor formed integrally with the above plurality of 3-1 portions.
In paragraph 1, A first sealing member interposed between the rear housing and the fixed scroll; A second sealing member interposed between the fixed scroll and the main frame; and It further includes a third sealing member interposed between the front housing and the main frame and between the front housing and the rear housing; A scroll compressor in which the first sealing member and the second sealing member are received in the receiving space, and the third sealing member seals between the receiving space and the outside of the housing.
In paragraph 1, The rear housing side plate is opposed to the outer surface of the main frame and the outer surface of the fixed scroll, and A scroll compressor in which the inner diameter of the rear housing side plate is formed to be larger than the outer diameter of the main frame and the outer diameter of the fixed scroll.
Housing; A motor that generates rotational force inside the above housing; A shaft rotated by the above motor; A pivot scroll that pivots by the shaft above; A fixed scroll that engages with the aforementioned rotating scroll and forms a compression chamber together with the aforementioned rotating scroll; and A main frame supporting the above-mentioned pivot scroll; including, The above housing includes a front housing and a rear housing that is fastened to the front housing and, together with the front housing, forms a receiving space in which the motor, the shaft, the pivoting scroll, the fixed scroll, and the main frame are received. A fastening member connecting the front housing, the main frame, the fixed scroll, and the rear housing is inserted into a fastening member chamber partitioned from the receiving space, and It further includes a first sealing member interposed between the rear housing and the fixed scroll, a second sealing member interposed between the fixed scroll and the main frame, and a third sealing member interposed between the front housing and the main frame and between the front housing and the rear housing. A scroll compressor in which the first sealing member and the second sealing member are received in the receiving space, and the third sealing member seals between the receiving space and the outside of the housing.

Description

Scroll Compressor The present invention relates to a scroll compressor, and more specifically, to a scroll compressor capable of compressing a refrigerant using a fixed scroll and a rotating scroll. Generally, an air conditioning (A/C) system is installed in a vehicle for heating and cooling the interior. As a component of the cooling system, this air conditioning system includes a compressor that compresses low-temperature, low-pressure gaseous refrigerant introduced from an evaporator into high-temperature, high-pressure gaseous refrigerant and sends it to a condenser. The above compressors include reciprocating types, which compress the refrigerant through the reciprocating motion of a piston, and rotary types, which perform compression through rotational motion. Depending on the power transmission method, the reciprocating type includes crank types, which transmit power to multiple pistons using a crank, and swashplate types, which transmit power through a rotating shaft equipped with a swashplate. The rotary type includes vane rotary types, which use a rotating rotary shaft and vanes, and scroll types, which use a slewing scroll and a fixed scroll. Scroll compressors are widely used for refrigerant compression in air conditioning systems and the like due to their advantages, such as the ability to achieve a relatively high compression ratio compared to other types of compressors, and stable torque resulting from the smooth succession of the refrigerant suction, compression, and discharge strokes. Figure 1 is a cross-sectional view illustrating a conventional scroll compressor. Referring to FIG. 1, a conventional scroll compressor comprises a housing (10), a motor (20) that generates rotational force inside the housing (10), a shaft (30) that is rotated by the motor (20), a rotating scroll (50) that rotates by the shaft (30), and a fixed scroll (60) that engages with the rotating scroll (50) and forms a compression chamber together with the rotating scroll (50). Here, the housing (10) includes a front housing (12) that accommodates the motor (20), a center housing (14) that is connected to the front housing (12) on one side and connected to the fixed scroll (60) on the other side, a discharge chamber that accommodates fluid (refrigerant and oil) discharged from the compression chamber, and a rear housing (16) that is connected to the fixed scroll (60) on the opposite side of the center housing (14) with respect to the fixed scroll (60), and the pivoting scroll (50) is interposed between the center housing (14) and the fixed scroll (60). In this conventional scroll compressor, when power is applied to the motor (20), the shaft (30) is rotated by the motor (20), the pivot scroll (50) is pivotally moved by the shaft (30), and the fluid contained in the space where the motor (20) is housed is sucked into the compression chamber, compressed, and then discharged into the discharge chamber, a series of processes can be repeated. However, in such conventional scroll compressors, there was a problem in that the fluid inside the housing (10) leaked through the space between the front housing (12) and the center housing (14), between the center housing (14) and the fixed scroll (60), and between the fixed scroll (60) and the rear housing (16). As a result, there was a problem in that the performance of the compressor was degraded and damage to the compressor occurred. In addition, there was a problem in that the fluid leaked outside the housing (10) ignited and caused a fire. In particular, recently, R290 refrigerant, which is an environmentally friendly refrigerant, is widely used, but since R290 refrigerant is flammable and explosive, it causes a major accident if it leaks outside the compressor. FIG. 1 is a cross-sectional view illustrating a conventional scroll compressor, FIG. 2 is a perspective view illustrating a scroll compressor according to one embodiment of the present invention, FIG. 3 is an exploded perspective view of FIG. 2. FIG. 4 is a cross-sectional view taken along line I-I of FIG. 2, Figure 5 is a cross-sectional view taken along line II-II of Figure 2. Hereinafter, a scroll compressor according to the present invention will be described in detail with reference to the attached drawings. FIG. 2 is a perspective view illustrating a scroll compressor according to one embodiment of the present invention, FIG. 3 is an exploded perspective view of FIG. 2, FIG. 4 is a cross-sectional view taken along line I-I of FIG. 2, and FIG. 5 is a cross-sectional view taken along line II-II of FIG. 2. Referring to the attached FIGS. 2 to 5, a scroll compressor according to one embodiment of the present invention may include a housing (100), a motor (200) that generates rotational force inside the housing (100), a shaft (300) that is rotated by the motor (200), an eccentric bushing (400) that converts the rotational motion of the shaft (300) into eccentric rotational motion, a pivoting scroll (500) that pivots by