KR20130102354A - Scroll compressor - Google Patents

Abstract

PURPOSE: A horizontal type scroll compressor is provided to prevent a stator from being rotated or moved in an axial direction by installing fixing members for fixing the stator on one end or both ends of the stator. CONSTITUTION: A horizontal type scroll compressor includes a casing (101), a driving motor (102), a crank shaft (125), and a compression unit. The casing includes a closed internal space connected with a discharge pipe. The driving motor is installed in the internal space of the casing and includes a stator (121) and a rotator (122). The crank shaft is joined to the stator of the driving motor. The compression unit is joined to the crank shaft and includes a rotating scroll (105) with a rotating wrap (152) and fixing scroll (104) with a fixing wrap (132) to form two pairs of compressive chambers (P) by being engaged to the rotating wrap of the rotating scroll. A fixing member (123) for fixing the stator to the casing is formed on at least one end among axial both ends of the stator.

Description

Horizontal Scroll Compressor {SCROLL COMPRESSOR}

The present invention relates to a horizontal scroll compressor, and more particularly, to a horizontal scroll compressor applied to a vehicle.

Generally, a compressor is a device that compresses a fluid such as refrigerant gas, and the compressor is classified into a rotary compressor, a reciprocating compressor, a scroll compressor, and the like according to a method of compressing the fluid.

The scroll compressor is a high-efficiency low-noise compressor which is widely applied in the field of an air conditioner. The scroll compressor forms a plurality of compression chambers in pairs between respective scrolls while two scrolls move relative to each other. The refrigerant is continuously sucked and compressed and discharged.

1 is a cross-sectional view showing the structure of a conventional horizontal scroll compressor.

As shown in the drawing, in the conventional scroll compressor, the main frame 2 and the subframe 3 are arranged at a predetermined interval in the transverse direction in the inner space of the casing 1, and the main frame 2 and A driving motor 4 for generating a rotational force is installed between the subframes 3, and a pivoting scroll 6 to be described later through the main frame 2 at the center of the rotor 42 of the driving motor 4. Is coupled to the crankshaft (5) is coupled to transfer the rotational force of the drive motor (4).

The fixed scroll 6 is fixedly installed at the front side of the main frame 2, and the fixed scroll 6 is provided with two pairs of compression chambers S engaged with the fixed scroll 5 and continuously moving. The swing scroll 7 is coupled to each other, and an Oldham's ring 8 is provided between the swing scroll 7 and the main frame 2 to pivot while preventing the swing scroll 7 from rotating. .

A bearing hole 21 for supporting the crank shaft 5 in the radial direction is formed in the center of the main frame 2, and the bearing bearing 21 has a main bearing for supporting the crank shaft 5 in the radial direction ( 22) is installed.

The inner space of the casing 1 is divided into a suction space 15 in which the suction port 11 is formed and a discharge space 16 in which the discharge port 12 is formed by the main frame 2, and the suction space 15. ) Is provided with a discharge cover 64 which seals the discharge port 63 of the fixed scroll 6 to form an intermediate space 17 so as to communicate with the discharge space 16, and the drive space is provided in the discharge space 16. The motor 4 is provided.

On the front side of the casing 1 is provided an inverter housing 13 which is electrically connected to the drive motor 4 and accommodates an inverter 81 for controlling the drive motor 4. The inverter housing 13 is provided with an air passage 13a for sucking the outside air to cool the inverter 81. In addition, a plurality of heat dissipation fins 13b are formed on the front surface of the inverter housing 13 to cool the inverter housing 13.

In the drawing, reference numeral 31 denotes a sub bearing supporting the crankshaft in a radial direction, 41 is a stator of a drive motor, 51 is an oil path, 61 is a fixed plate, 62 is a fixed wrap, 63 is a discharge port, and 71 is a turning plate. 72 is turning lap, 73 is boss, 74 is pin bearing and 82 is IGBT.

The conventional horizontal scroll compressor as described above is operated as follows.

That is, when power is applied to the drive motor 4, the rotating crank shaft 5 rotates together with the rotor 4b of the drive motor 4, and the turning scroll 7 is driven by the old dam ring 8. In the upper surface of the frame 2, the pivoting movement is made by an eccentric distance, and two pairs of compression chambers S are continuously formed between the fixed wrap 62 and the swing wrap 72.

This compression chamber (S) is moved to the center by the continuous turning movement of the turning scroll (7) and as the volume is reduced the refrigerant gas is sucked into the suction space (15) of the casing (1) through the suction port (11), The refrigerant gas is sucked into the compression chamber through the suction port provided in the fixed scroll 7 and compressed and discharged to the discharge space 16 of the casing 1 through the discharge port 63.

However, in the conventional horizontal scroll compressor as described above, the stator of the driving motor is press-fitted into the inner peripheral surface of the shell by heat shrinking, but the shell may be deformed as the internal space of the shell forms the high- So that the fixed state of the stator becomes poor and the rotor rotates finely together with the rotor or moves in the axial direction, thereby deteriorating compressor performance.

It is an object of the present invention to provide a horizontal scroll compressor capable of firmly fixing a stator of the drive motor to a casing.

In order to achieve the object of the present invention, there is provided an air conditioner comprising: a casing having a closed inner space and communicating with a discharge pipe in an inner space thereof; A drive motor installed in the inner space of the casing and having a stator and a rotor; A crank shaft coupled to the rotor of the drive motor; And a compression portion coupled to the crankshaft and including a orbiting scroll having an orbiting wrap and a fixed scroll having a fixed lap to engage the orbiting wrap of the orbiting scroll to form a pair of two compression chambers, And a fixing member for fixing the stator to the casing may be further provided at least at one end of the shaft.

Here, the fixing member may be bolted to the casing and may be concavo-convexly coupled to the stator.

The fixing member is formed in an annular shape so that at least one rotation preventing protrusion is formed along the circumferential direction, and a rotation preventing groove is formed at the end of the stator corresponding to the rotation preventing protrusion.

A support jaw is formed on the inner circumferential surface of the casing so as to support one end of the stator, and the fixing member can be fastened to one opening end of the casing.

The casing includes a shell having both ends opened and a stator of the driving motor installed, a front cap coupled to one end of the shell to receive the compression unit, and a front cap coupled to one end of the front cap, A top plate for receiving the control unit, and a back cap for covering the other end of the shell and provided with an oil pump, and the fixing member may be installed between the shell and the back cap.

The fixed wrap and the swiveling wrap each have a first uniform section, a variable section, and a second uniform section formed in succession with each other in the direction of the wrap start end from the wrap end, and the second uniform section is greater than the wrap thickness of the first uniform section. The wrap thickness of can be formed thicker.

The lateral scroll compressor according to the present invention can improve the performance and reliability of the compressor by providing a fixing member for fixing the stator at both ends or one end of the stator to prevent the stator from rotating or moving in the axial direction .

1 is a longitudinal sectional view showing an example of a conventional horizontal scroll compressor;
Figure 2 is a perspective view showing the appearance of the horizontal scroll compressor of the present invention,
FIG. 3 is a perspective view of the transverse scroll compressor of FIG. 2,
Figure 4 is a longitudinal sectional view showing the inside in the horizontal scroll compressor according to FIG.
5 is an enlarged longitudinal sectional view of the portion "A" in Fig. 4,
FIG. 6 is a perspective view of the transverse scroll compressor according to FIG. 2,
7 is a plan view showing a wrap thickness shape of the orbiting wrap according to the present invention.

Hereinafter, the horizontal scroll compressor according to the present invention will be described in detail with reference to the embodiment shown in the accompanying drawings.

FIG. 2 is a perspective view showing the appearance of the lateral scroll compressor of the present invention. FIG. 3 is a perspective view of the transverse scroll compressor according to the present invention, 5 is an enlarged vertical cross-sectional view of the portion "A" of Fig. 4. Fig.

As shown in the horizontal scroll compressor according to the present invention, the casing 101 is installed long in the horizontal direction, the drive motor 102 for generating a rotational force on one side of the inner space of the casing 101 is installed, On the other side of the inner space of the casing 101 includes a fixed scroll 104 and the turning scroll 105 and the compression unit for receiving the rotational force of the drive motor 102 to form a pair of two compression chamber (P) is installed On one side of the compression unit, a control unit 106 for controlling the operation of the compressor is installed.

The casing 101 forms a first space portion S1 that is open at both ends to form a discharge space, and a shell 111 in which the driving motor 102 is installed, and the shell 111. A front cap 112 that forms a second space portion S2 coupled to one end of the suction space and accommodates the compression unit, and a second space portion that is coupled to one end of the front cap 112. A top plate 113 for forming a third space portion S3 constituting the suction space together with S2 and accommodating the control unit 106, and the other end of the shell 111 are covered with the first space. A fourth space portion S4 constituting the discharge space or the oil separation space together with the first space portion S1 may be formed, and may be formed of a back cap 114 having an oil pump 119 to be described later.

The main frame 103 supporting the crankshaft 125 to be described later and partitioning the first space S1 and the second space S2 may be sealably coupled to the front side of the shell 111. Sealing such as a gasket or an O-ring between the shell 111 and the main frame 103, between the front cap 112 and the top plate 113, and between the shell 111 and the back cap 114, respectively. A member (unsigned) may be interposed.

A plurality of fastening grooves 1111 are formed at one open end of the shell 111, and a plurality of fastening holes 1125 are formed at the front cap 112 to correspond to the fastening grooves 1111 of the shell 111. do. Accordingly, the front cap 112 uses the long fastening bolt B1 fastened to the fastening groove 1111 of the shell 111 by passing through the fastening hole 1121 of the front cap 112. Can be fastened to.

A fastening groove 1122 may be formed in the front cap 112, and a fastening hole (not shown) may be formed in the top plate 113 to correspond to the fastening groove 1122 of the front cap 112. Thus, the top plate 113 is front cap 112 by using a short fastening bolt (B2) that penetrates the fastening hole 1131 of the top plate 113 and is fastened to the fastening groove 1122 of the front cap 112. Can be fastened to In this case, it is possible to repair or replace the control unit by removing only the top plate 113 without disassembling the front cap 112 when the control unit 106 fails.

Although not shown in the drawings, the top plate, the front cap, and the shell may be fastened by using a long fastening bolt fastened to the shell 111 by passing through the top plate 113 and the front cap 112 continuously. . In this case, the top plate, the front cap, and the shell may be easily assembled.

A discharge cover 145 to be described later is interposed between the front cap 112 and the fixed scroll 104 to be described later. The discharge cover 145 may be fastened together when the long fastening bolt B1 is fastened. . In this case, a separate process or parts are not required to assemble the discharge cover 145, thereby simplifying the assembly process.

Meanwhile, a bearing hole 131 is formed in the center of the main frame 103 so as to radially support the crank shaft 125 to be described later, and a crank shaft 125 is radially formed at one side of the bearing hole 131. Main bearing 132 to support it may be installed.

An inlet 1125 is formed in the front cap 112 so as to communicate with the second space S2, and a discharge port 1141 is formed in the back cap 114 so as to communicate with the fourth space S4. The main frame 103 has an exhaust passage 1311 is formed to communicate the intermediate space (S5) and the first space (S1) to be described later, is installed between the shell 111 and the back cap 114 is In the differential pressure separator 115 separating the first space S1 and the fourth space S4, the refrigerant moving to the first space S1 is discharged through the fourth space S4. The exhaust hole 1151 may be formed near the uppermost point so as to be guided to the uppermost point, and an oil hole 1152 may be formed at the lowest point of the differential pressure separating plate. As a result, the refrigerant gas moving to the first space S1 moves to the fourth space S4 through the exhaust hole 1151, while the oil moving to the first space S1 is transferred to the first space S1. It is pressed by the pressure of the first space portion S1 and moves to the fourth space portion S4 forming a relatively low pressure portion through the oil hole 1152.

One side of the shell 111 may be a terminal portion 116 for electrically connecting the terminal of the drive motor 102 and the terminal of the control unit 106. The terminal portion 116 is composed of a plurality of terminal pins 1161, and the first space portion S1 is formed by forming a molding portion 1162 around the plurality of terminal pins 1161 using an insulating material such as plastic. It may be desirable to prevent the second space portion S2 from communicating with the terminal portion 116.

The front cap 112 is formed in an annular shape and coupled to the main frame 103, the cap portion 1121, and is covered in one side of the cap portion 1121 transversely to the second space portion (S2) and third It may be composed of a plate portion 1122 for separating the space (S3). An Insulated Gate Bipolar Transistor (IGBT) 161, which forms part of the control unit 106, is coupled to the plate portion 1122, and a substrate 162 electrically connected to the idle unit 161. It can be combined to be spaced apart by a predetermined height.

The cap part 1121 may have a suction port 1125 to which the suction pipe is connected. The suction port 1125 may be bisected by the plate part 1122 such that the suction port 1125 may communicate with the second space S2 and the third space S3 at the same time. The suction port 1125 may be formed to communicate with the second space portion S2 or the third space portion S3 independently by the plate portion 1122.

A communication hole 1126 may be formed in the plate portion 1122 such that the second space portion S2 and the third space portion S3 communicate with each other. Thus, even when the refrigerant is sucked into the second space S2 or the third space S3 or simultaneously sucked into the second space S2 and the third space S3, the refrigerant It may be sucked into the suction port 143 of the fixed scroll 104 to be described later through both the second space (S2) and the third space (S3).

A discharge port 1141 may be formed at one side of the back cap 114 to be connected to the discharge pipe, and an oil separator 117 may be inserted into the discharge port 1141. The oil separator 117 may be installed in a direction perpendicular to the installation surface, but in order to double the oil separation effect by increasing the centrifugal force, the oil separator may be inclined.

In addition, a sub bearing 118 supporting the other end of the crankshaft 125 may be installed at the center of the back cap 114, and the oil pump 119 may be installed at one side of the sub bearing 118.

The driving motor 102 may be wound around the stator 121 in a winding coil manner. In addition, the drive motor 102 may be a constant speed motor having the same rotation speed of the rotor 122, but the rotation speed of the rotor 122 may be varied in consideration of the multifunctionality of the refrigeration apparatus to which the compressor is applied. Inverter motors can be used. The crankshaft 125 is rotatably coupled to the turning scroll 105 to be described later to the rotor 122 of the driving motor 102 to transmit the rotational force of the driving motor 102 to the turning scroll 105. Combined.

Here, as shown in FIGS. 3 and 4, the stator 121 may be prevented from rotating by using a fixing member 123 fixed to the shell 111. A supporting chin 1112 having a predetermined height is provided on one side of the inner circumferential surface of the shell 111 constituting the casing 101 (precisely on the main frame side) so as to axially support one end of the stator 121, A fixing member 123 is fastened to the other opening end of the shell 111 so that the fixing member 123 supports the other end of the stator 121 in the axial direction The fixing portion 1113 can be formed on the inner circumferential surface stepwise. A plurality of coupling grooves 1114 may be formed along the circumferential direction of the shell so that a bolt B3 passing through a fixing member 123, which will be described later, is fastened.

The fixing member 123 may be formed in an annular shape. A rotation preventing protrusion 1231 is formed on one side surface of the fixing member 123 so as to be inserted into a rotation preventing groove 1211 provided at the other end of the stator 121 to support the rotating direction of the stator 121 .

In order to restrain the rotation of the stator 123 in a balanced manner, it is preferable that a plurality of (for example, three or more) rotation preventing protrusions 1231 are formed at regular intervals along the circumferential direction can do.

5, a through hole 1232 may be formed along the circumferential direction of the fixing member 123 so that the fixing member 123 may be separately fastened to the fastening groove 1114 of the shell 111 with bolts B3. However, And may be fastened together using fastening bolts B4 for fastening the back cover 114 and the back cap 114 to each other. When the fixing member 123 is fastened together with the shell 111 and the backcap 114, the number of bolts for assembling the fixing member 123 and the number of assembling steps can be reduced, thereby reducing manufacturing costs.

A rotation preventing protrusion (not shown) is also formed on the supporting step 1112 of the shell 111 for supporting one end of the stator 121 and the other end of the stator 121 corresponding to the supporting step 1112 The rotation preventing grooves 1233 may be formed to restrict the rotational direction at both ends of the stator 121. In this case, the stator 121 can be more stably fixed, and the performance of the compressor can be further improved. However, in the case where the rotation preventing grooves are formed at both ends of the stator, the rotation preventing protrusions and the rotation preventing grooves must be accurately aligned in the axial direction, so that relative machining may be difficult.

A fixed scroll (104) is fixedly coupled to one side of the main frame (102). The fixed scroll 104 is fixed plate 141 is formed in the shape of a disk to be fixed to the main frame 102, the fixed wrap 142 for forming a compression chamber (P) on one side of the fixed plate 141 Is formed, a suction port 143 is directly connected to the suction port 1125 at the edge of the hard plate 141, and a discharge port 144 is formed at the center of the fixed plate 141. And a discharge cover 145 for guiding the refrigerant discharged through the discharge port 144 to move to the first space (S1) without passing through the second space (S2) on the rear surface of the fixed scroll (104) Can be installed. The discharge cover 145 may be fastened to the fixed scroll 104 and the fixed scroll 104 may be fastened to the main frame 102, but the discharge cover 145 and the fixed scroll 104 may be main together. The frame 102 may be fastened or the discharge cover 145, the fixed scroll 104, and the main frame 102 may be fastened together to the shell 111. When the discharge cover and the fixed scroll or the discharge cover and the fixed scroll and the main frame are fastened together, the manufacturing cost of the compressor can be reduced by reducing the number of fastening bolts and the number of assembly operations.

Between the upper surface of the main frame 102 and the bottom of the fixed scroll 104 is provided with a rotating scroll 105 to form a pair of compression chamber (P) together with the fixed scroll (104). The pivoting scroll 105 is a pivoting plate 151 is formed in the shape of a disc to make a pivoting movement between the main frame 102 and the fixed scroll 104, the fixed wrap (151) on one side of the pivoting plate (151) Swivel wrap 152 is formed in engagement with the 142 to form a compression chamber (P), the boss 153 is coupled to the crank shaft 125 is formed on the other side of the swivel plate 151.

Between the pivoting scroll 105 and the main frame 102, the rotational scroll 105 receives the rotational force of the driving motor 102 to prevent the rotation of the rotation without rotating the rotational member (all damring) 171 is installed. Although not shown in the drawings, the anti-rotation member may be made of a keyless bearing in addition to the bearing having a key, a pin having a ring on the orbiting scroll and a ring having a ring on the opposite side, Lt; / RTI >

The fixed wrap 142 and the swing wrap 152 is formed in an involute shape with a uniform wrap thickness, or the wrap thickness is thickened at a constant rate from the end of the wrap toward the start end direction, that is, from the suction to the discharge direction of the refrigerant. It may be formed in an algebraic spiral shape.

However, when the fixed wrap 142 and the swing wrap 152 is formed in a typical involute shape, the thickness of the wrap is constant, so the volume change rate is also constant. Therefore, in order to obtain a high compression ratio in the scroll compressor using the involute curve, it is necessary to increase the number of turns of the lap or increase the height of the lap. However, as the number of turns of the lap increases, the size of the compressor also increases, and when the height of the lap increases, the strength of the lap weakens and the reliability decreases.

On the other hand, when the fixed wrap 142 and the swing wrap 152 is formed in a logarithmic spiral shape, the compression ratio can be increased to a certain degree without increasing the number of turns of the wrap, but when the wrap is designed in a logarithmic spiral shape, the suction end When the lap thickness of the lap is determined, the lap thickness of the discharge end (ie, the end of the lap) is also determined so that the design freedom of the lap is lowered, thereby reducing the compression ratio of the scroll compressor to the desired freezing capacity. There was a limit to the design.

7 is a plan view showing a wrap thickness shape of the orbiting wrap according to the present invention.

As shown in this figure, in the present embodiment, the fixed wraps 142 and the orbiting wraps 152 are formed so as to have variable intervals between a plurality of uniform intervals, so that the discharge end thickness of the wraps (i.e., Can be formed to be significantly larger than the suction end thickness (i.e., the end thickness of the lap), thereby increasing the thickness of the lap according to the change of the compression ratio, thereby greatly improving the performance of the compressor.

The fixed lap and the orbiting lap of the present embodiment (the fixed lap and the orbiting lap are formed symmetrically so that the orbiting lap will be described below as a representative example) 152 is a lap thickness up to a certain interval from the suction side end A variable section 1522 in which the thickness of the wrap becomes thicker toward the discharge side is formed up to a certain section from the inner end of the first uniform section 1521. The variable section 1522 The second uniform section 1523 having the same wrap thickness is formed from the inner end of the second uniform section to the discharge end of the wrap (start angle of the wrap).

The wrap thickness of the first uniform section 1521 is thinner than the wrap thickness of the second uniform section 1522. Preferably, when the lap thickness of the first uniform section 1521 is t1 and the lap thickness of the second uniform section 1523 is t2, the lap thickness ratio t2 / t1 in the two uniform sections is It may be formed so that at least 1.5 <(t2 / t1) <3.0. Here, when the ratio of the lap thickness in the two uniform sections 1521 and 1523 is 1.5 or less, the compression ratio does not increase as expected because the lap thickness at the discharge side end is thinner as compared with the conventional algebraic spiral lap. Can be. On the other hand, when the ratio of the lap thickness is 3.0 or more, the lap thickness of the second uniform section 1523 on the discharge port side becomes too thick, making it difficult to secure a proper discharge hole, thereby increasing the discharge resistance as the area of the discharge hole is narrowed. There is a fear that the compressor performance is lowered.

The lap thickness t3 of the variable section is greater than or equal to the lap thickness t1 of the first uniform section 1521, and the lap thickness t2 of the second uniform section 1523 is the maximum lap thickness. It may be formed equal or smaller.

In the figure, reference numeral 146 denotes a check valve.

The above-described horizontal scroll compressor according to the present invention operates as follows.

That is, when power is applied to the drive motor 102, the crankshaft 125 rotates together with the rotor 142 to transmit rotational force to the turning scroll 105.

Then, the swing scroll 105 is a pair of two moving in succession between the fixed wrap 142 and the swing wrap 152 while turning the eccentric distance from the main frame 102 by the Oldham ring 171 The compression chamber P is formed.

Then, the compression chamber P moves to the center by the continuous turning motion of the turning scroll 105 to decrease the volume to compress the refrigerant sucked into the compression chamber P through the suction port 1125, and the compressed refrigerant Is discharged to the first space S1 of the casing 101 through the discharge port 144 communicated with the inner final compression chamber.

The refrigerant discharged from the compression chamber P is discharged to the intermediate space 5 by the discharge cover 145 and the refrigerant discharged to the intermediate space 5 flows through the discharge hole 145 of the fixed scroll 104, The refrigerant flowing into the first space S1 flows into the first space S1 through the exhaust passage 1511 of the main frame 102 and the exhaust passage 1311 of the main frame 102, The refrigerant moves to the fourth space S4 through the exhaust hole 1151 and the refrigerant moving to the fourth space S4 is separated from the oil and moves to the refrigeration cycle through the discharge port 1145. [ At this time, the oil separated from the refrigerant is pumped by the oil pump 119 is supplied to the compression unit. The oil contained in the first space S1 is formed through the oil hole 1152 of the differential pressure separating plate 115 due to the pressure difference between the first space S1 and the fourth space S4. 4 is moved to the space S4 and pumped to the oil pump 119 together with the oil separated from the refrigerant, and is supplied to the compression unit.

Meanwhile, the stator 121 of the driving motor 102 may be pressed and inserted into the inner space of the shell 111. In this case, as the first space S1 forming the inner space of the shell 111 forms a high-pressure portion, the fixed state of the stator 121 may become unstable, and the rotor 122 may move at a high speed The stator 121 may be pulled by the magnetic force to make the fixed state more unstable.

A fixing member 123 for fixing the stator 121 is provided at both ends or one end of the stator 121 so that the stator 121 rotates or moves in the axial direction The performance and reliability of the compressor can be improved.

101: casing 111: shell
1112: Support chin 1113: Anti-rotation projection
112: front cap 1125: inlet
113: top plate 114: back cap
115: differential pressure separating plate 1151: exhaust hole
1152: oil hole 116: terminal portion
117: oil separator 118: sub-bearing
119: oil pump 102: drive motor
121: stator 122: rotor
123: fixing member 1231: anti-rotation projection
1232: fastening hole 103: main frame
132: main bearing 104: fixed scroll
132: fixed wrap 143: suction port
144: discharge port 105: turning scroll
151: turning lap 152: turning lap
106: control unit 171: Olddamling
P: Compression chamber S1, S2, S3, S4: Space part
S5: Intermediate space

Claims (9)

A casing having a closed inner space and communicating with a discharge pipe in an inner space thereof;
A drive motor installed in the inner space of the casing and having a stator and a rotor;
A crank shaft coupled to the rotor of the drive motor; And
And a compression portion including a fixed scroll having a fixed lap to engage with the orbiting scroll of the orbiting scroll and to form a pair of two compression chambers coupled to the crankshaft,
At least one end of the axial end of the stator of the horizontal scroll compressor further comprises a fixing member for fixing the stator to the casing. The method of claim 1,
The fixing member is bolted to the casing and the scroll compressor is unevenly coupled to the stator. The method of claim 2,
Wherein the fixing member is formed in an annular shape so that at least one rotation preventing protrusion is formed along the circumferential direction,
And a rotation preventing groove is formed at an end of the stator to which the rotation preventing protrusion corresponds. The method of claim 2,
Wherein a supporting step is formed on an inner circumferential surface of the casing so as to support one end of the stator,
And the fixing member is fastened to one opening end of the casing. 5. The method of claim 4,
Wherein at least one of the rotation preventing protrusions is formed along the circumferential direction on the support jaw,
And a rotation preventing groove is formed in the end portion of the stator corresponding to the supporting jaw so that the rotation preventing protrusion is engaged with the rotation preventing groove. 6. The method according to any one of claims 1 to 5,
The casing is a shell in which both ends are opened and the stator of the driving motor is installed, a front cap coupled to one end of the shell to receive the compression part, and coupled to one end of the front cap, so as to control the control unit. It consists of a top plate (top plate), and a back cap to cover the other end of the shell is installed oil pump,
Wherein the fixing member is installed between the shell and the back cap. The method according to claim 6,
And the fixing member is fastened to the shell using a separate fastening bolt. The method according to claim 6,
Wherein the fixing member is fastened together by fastening bolts for fastening the shell and the back cap. 9. The method according to any one of claims 1 to 8,
The fixed wrap and the swing wrap are each formed of a first uniform section, a variable section and a second uniform section continuously from the end of the wrap to the end of the wrap;
And a wrap thickness of the second uniform section is thicker than the wrap thickness of the first uniform section.

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