KR20200092727A - Linear compressor - Google Patents

Abstract

The present invention relates to a linear compressor that improves noise and vibration absorption capability by providing a support device to which a coil spring is applied. The linear compressor according to an embodiment of the present invention includes a support device that is coupled to a compressor main body and supports the compressor main body to a shell, wherein the support device includes: a support leg coupled to the compressor main body; an elastic member having one end part coupled to the support leg; a shell sheet to which the other end part of the elastic member is coupled and in close contact with an inner peripheral surface of the shell; and a fixed core inserted into the inside of the shell sheet and having at least a part in contact with the inner peripheral surface of the shell.

Description

Linear compressor {Linear compressor}

The present invention relates to a linear compressor.

In general, a compressor (Compressor) is a mechanical device that receives power from a power generating device such as an electric motor or a turbine and compresses air, a refrigerant, or various other working gases to increase pressure, and is widely used throughout home appliances or industries. have.

If such a compressor is largely classified, it can be divided into a reciprocating compressor (reciprocating compressor), a rotary compressor (rotary compressor), and a scroll compressor (scroll compressor).

Recently, among the reciprocating compressors, a linear compressor having a simple structure capable of improving compression efficiency without mechanical loss due to motion switching is being developed by directly connecting a piston to a driving motor that reciprocates linearly.

A linear compressor is disclosed in Japanese Patent Laid-Open Publication No. 10-2017-0124889 (published on November 13, 2017).

The linear compressor disclosed in the prior art document includes a shell, a compressor body disposed inside the shell, and a leaf spring supporting the compressor body inside the shell.

Specifically, the compressor body includes various parts such as a piston, a cylinder, and a motor for compressing refrigerant, and vibration may occur in the front and rear directions of the compressor body by the reciprocating linear motion of the piston.

In addition, vibrations generated in the compressor body may be reduced to be transmitted to the shell side by leaf springs provided at front and rear ends of the compressor body, respectively.

As such, the linear compressor in which the front and rear ends are supported by two leaf springs has the following problems.

First, there is a disadvantage in that the leaf spring support structure is inferior in noise and vibration absorption ability to the coil spring support structure.

Second, since the number of parts including a plurality of bolts increases in order to connect the leaf spring to the compressor body and the inner circumferential surface of the shell, there is a problem in that the material cost is high.

Third, because the number of parts is large, it takes time to assemble, and there is a problem that the possibility of a bolt tightening failure increases because the leaf spring and the shell are connected using a bolt.

Korean Patent Publication No. 10-2017-0124889 (Publication date: November 13, 2017)

The present invention has been proposed to solve the above-mentioned problems, and an object of the present invention is to provide a linear compressor capable of improving noise and vibration absorption capability by providing a support device to which a coil spring is applied.

Another object of the present invention is to provide a linear compressor capable of aligning the compressor body in an accurate position when the compressor body is installed in the shell, and effectively reducing vibration transmitted from the compressor body to the shell side when the compressor is driven. have.

Another object of the present invention is to provide a linear compressor that can easily couple the support device to the compressor body without using a separate fastening member.

Another object of the present invention is to provide a linear compressor that can improve work convenience when the compressor body is installed, and can easily return to the original position even when the compressor body is out of position by an external force.

The linear compressor according to the embodiment of the present invention is coupled to the compressor body, and includes a support device for supporting the compressor body to the shell.

The support device includes a support leg coupled to the main body of the compressor, an elastic member having one end coupled to the support leg, a shell sheet coupled to the other end of the elastic member, and in close contact with the inner circumferential surface of the shell, and the shell It is inserted into the interior of the sheet, and includes a fixing shim that selectively contacts the inner circumferential surface of the shell.

At this time, the shell sheet is formed of a rubber or silicone material, and the fixing shim is formed of an engineering plastic material, so that when the compressor body is installed in the shell, the compressor body can be aligned to the correct position, and the compressor is driven. The vibration transmitted from the compressor body to the shell side can be effectively reduced.

In addition, the compressor body includes a discharge cover forming a discharge space in which a refrigerant compressed at high pressure is accommodated, and the support leg may be coupled to an outer surface of the discharge cover.

The support leg includes a leg body extending in the radial direction of the shell, a head support formed round to contact the outer surface of the discharge cover at an end of the leg body, and a mounting protrusion protruding from the center of the head support And, the mounting projection can be inserted into the outer surface of the discharge cover.

In addition, the discharge cover includes a chamber part forming the discharge space and a support device fixing part extending in the axial direction from the chamber part, and the mounting protrusion can be inserted into a fastening groove formed in the support device fixing part. .

At this time, the outer diameter of the support device fixing part is formed smaller than the outer diameter of the chamber part, and the fastening groove may be formed by being recessed inward from the outer peripheral surface of the support device fixing part.

In addition, the shell sheet includes a bottom portion that is in close contact with the inner circumferential surface of the shell and a radially inner side from the bottom portion, and includes a body portion inserted into the elastic member, and the fixing shim penetrates through the bottom portion to the body. It can be inserted into the interior of the part. At this time, at least a portion of the fixing shim may be exposed outside the bottom.

The bottom surface of the bottom portion may be convexly rounded downward. In addition, the bottom surface of the fixed seam is convexly rounded downward, and the bottom surface curvature of the fixed seam may be formed to be the same as the bottom surface curvature of the bottom portion.

The linear compressor according to another embodiment of the present invention is coupled to the compressor body, and includes a support device for supporting the compressor body to the shell.

The support device includes a support leg coupled to the compressor body, an elastic member having one end coupled to the support leg, and the other end of the elastic member coupled to each other, and a shell sheet in close contact with the inner circumferential surface of the shell.

At this time, the shell sheet is inserted into the protrusion provided on the inner circumferential surface of the shell, so that when the compressor body is installed in the shell, the compressor body can be aligned to the correct position, and when the compressor is driven, the compressor body may Vibration transmitted to the shell side can be effectively reduced.

In addition, the shell sheet includes a bottom portion that is in close contact with the inner circumferential surface of the shell and a radially inner side of the shell from the bottom portion, and includes a body portion that is inserted into the elastic member, and wherein the protruding portion is the bottom portion. Through it can be inserted into the body portion.

The bottom surface of the bottom portion may be convexly rounded downward. Then, the bottom portion is recessed upward from the center of the bottom surface, a groove into which the protrusion is inserted may be formed.

The protrusion may be formed of stars and welded to the inner circumferential surface of the shell, or a portion of the outer circumferential surface of the shell may be recessed inward.

According to the linear compressor according to the embodiment of the present invention constituting the above configuration, it has the following effects.

First, since the coil spring can be applied to the support device supporting the compressor body, vibration transmitted from the compressor body to the shell side can be effectively reduced compared to the support device to which the leaf spring is applied.

In particular, the support device is provided with a shell sheet in close contact with the inner circumferential surface of the shell, and by inserting a fixing shim selectively contacting the inner circumferential surface of the shell inside the shell sheet, when the compressor body is installed in the shell, the compressor body It can be aligned to the correct position, there is an advantage that can effectively reduce the vibration transmitted from the compressor body to the shell side when the compressor is driven.

Second, at least a portion of the fixing shim is exposed to the outside of the shell sheet. At this time, the bottom surface of the shell sheet may be convexly rounded downward, and the bottom surface of the fixing shim may be convexly rounded downward. In addition, since the bottom curvature of the fixing shim and the bottom curvature of the shell sheet are formed to be the same, there is an advantage that the pivoting motion of the support device can be facilitated. That is, in the process of the support device pivoting by the vibration of the compressor body, there is an advantage that the fixing shim does not become an element that interferes with the pivoting motion.

Third, since the support device can be fixedly coupled to the compressor body without using a separate fastening member, there is an advantage in that product cost is lowered and installation convenience is improved.

Fourth, since the shell sheet of the support device can be inserted into and fixed to the protrusion provided on the inner circumferential surface of the shell, there is an advantage of improving work convenience when installing the compressor body.

Fifth, even if the compressor body deviates from the fixed position by an external force, there is an advantage in that the support device slips and easily returns to the original position.

1 is a perspective view of a linear compressor according to a first embodiment of the present invention.
Figure 2 is an exploded view showing the internal configuration of the linear compressor according to the first embodiment of the present invention.
3 is a cross-sectional view taken along line III-III' of FIG. 1;
4 is a view showing a state in which the discharge support device according to the first embodiment of the present invention is coupled to the discharge cover.
5 is an exploded perspective view of a discharge support device according to a first embodiment of the present invention.
6 is a longitudinal sectional view taken along II-II' of FIG. 4;
7 is a cross-sectional view showing that the discharge support device according to the first embodiment of the present invention is in close contact with the inner peripheral surface of the shell.
8 is a cross-sectional view showing that the discharge support device according to the first embodiment of the present invention pivots on the inner circumferential surface of the shell.
9 is a cross-sectional view showing that the discharge support device according to the second embodiment of the present invention is in close contact with the inner circumferential surface of the shell.
10 is a cross-sectional view showing that the discharge support device according to the third embodiment of the present invention is in close contact with the inner surface of the shell.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible, even if they are displayed on different drawings. In addition, in describing embodiments of the present invention, when it is determined that detailed descriptions of related well-known configurations or functions interfere with understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected to or connected to the other component, but another component between each component It should be understood that may be "connected", "coupled" or "connected".

1 is a perspective view of a linear compressor according to a first embodiment of the present invention.

Referring to FIG. 1, a linear compressor 10 according to an embodiment of the present invention includes a shell 101 and shell covers 102 and 103 coupled to the shell 101. In a broad sense, the shell covers 102 and 103 can be understood as one configuration of the shell 101.

A leg 50 may be coupled to the lower side of the shell 101. The leg 50 may be coupled to the base of the product on which the linear compressor 10 is installed. For example, the product includes a refrigerator, and the base may include a machine room base of the refrigerator. As another example, the product may include an outdoor unit of an air conditioner, and the base may include a base of the outdoor unit.

The shell 101 has a substantially cylindrical shape, and may be arranged in a horizontal direction or in an axial direction. Based on FIG. 1, the shell 101 extends long in the horizontal direction and may have a somewhat lower height in the radial direction. That is, since the linear compressor 10 may have a low height, for example, when the linear compressor 10 is installed in the machine room base of the refrigerator, there is an advantage that the height of the machine room can be reduced.

In addition, the central axis of the longitudinal direction of the shell 101 coincides with the central axis of the compressor body, which will be described later, and the central axis of the compressor body coincides with the central axis of the cylinder and piston constituting the compressor body.

A terminal 108 may be installed on the outer surface of the shell 101. The terminal 108 is understood as a configuration that delivers external power to the motor assembly 140 of the linear compressor 10 (see FIG. 3). In particular, the terminal 108 may be connected to the lead wire of the coil.

On the outside of the terminal 108, a bracket 109 is installed. A plurality of brackets surrounding the terminal 108 may be included in the bracket 109. The bracket 109 may function to protect the terminal 108 from external impact or the like.

Both sides of the shell 101 are configured to be opened. The shell covers 102 and 103 may be coupled to both sides of the opened shell 101. Specifically, the shell cover (102, 103), the first shell cover (102, see Fig. 3) coupled to one side of the opening of the shell 101 and the other side of the opening of the shell 101 A second shell cover 103 to be coupled is included. The inner space of the shell 101 may be sealed by the shell covers 102 and 103.

1, the first shell cover 102 is located on the right side of the linear compressor 10, and the second shell cover 103 is located on the left side of the linear compressor 10. . In other words, the first and second shell covers 102 and 103 may be disposed to face each other. In addition, it can be understood that the first shell cover 102 is located on the suction side of the refrigerant, and the second shell cover 103 is located on the discharge side of the refrigerant.

The linear compressor 10 further includes a plurality of pipes 104, 105, and 106 provided in the shell 101 or the shell covers 102, 103 to suck, discharge, or inject refrigerant.

In the plurality of pipes 104, 105, and 106, a suction pipe 104 that allows refrigerant to be sucked into the linear compressor 10, and a discharge pipe that allows compressed refrigerant to be discharged from the linear compressor 10. 105 and a process pipe 106 for replenishing the refrigerant to the linear compressor 10 is included.

For example, the suction pipe 104 can be coupled to the first shell cover 102. The refrigerant may be sucked into the linear compressor 10 along the axial direction through the suction pipe 104.

The discharge pipe 105 may be coupled to the outer circumferential surface of the shell 101. The refrigerant sucked through the suction pipe 104 may be compressed while flowing in the axial direction. In addition, the compressed refrigerant may be discharged through the discharge pipe 105. The discharge pipe 105 may be disposed at a position adjacent to the second shell cover 103 rather than the first shell cover 102.

The process pipe 106 may be coupled to the outer peripheral surface of the shell 101. The operator may inject refrigerant into the linear compressor 10 through the process pipe 106.

In addition, the process pipe 106 may be coupled to the shell 101 at a different height from the discharge pipe 105 to avoid interference with the discharge pipe 105. The height is understood as a distance in the vertical direction from the leg 50. The discharge pipe 105 and the process pipe 106 are coupled to the outer circumferential surface of the shell 101 at different heights, whereby work convenience can be achieved.

At least a portion of the second shell cover 103 may be positioned adjacent to the inner circumferential surface of the shell 101, corresponding to a point at which the process pipe 106 is coupled. In other words, at least a portion of the second shell cover 103 may act as a resistance of the refrigerant injected through the process pipe 106.

Therefore, from the viewpoint of the flow path of the refrigerant, the size of the flow path of the refrigerant flowing through the process pipe 106 is reduced by the second shell cover 103 while entering the interior space of the shell 101 and passes through it. It is formed to grow again. In this process, the pressure of the refrigerant is reduced so that the refrigerant can be vaporized.

In addition, in this process, oil contained in the refrigerant may be separated. Therefore, as the refrigerant separated from the oil flows into the piston 130 (see FIG. 3 ), the compression performance of the refrigerant may be improved. The oil can be understood as a working oil present in the cooling system.

Inside the first and second shell covers 102 and 103, an apparatus for supporting a compressor body disposed inside the shell 101 may be provided. Here, the compressor body means a component provided inside the shell 101, and may include, for example, a driving unit for reciprocating back and forth and a support for supporting the driving unit.

Hereinafter, the main body of the compressor will be described in detail.

FIG. 2 is an exploded view of the internal configuration of the linear compressor according to the first embodiment of the present invention, and FIG. 3 is a view showing a cross-section taken along line III-III' of FIG. 1.

2 and 3, the linear compressor 10 according to an embodiment of the present invention includes a frame 110, a cylinder 120, a piston 130 reciprocating linearly inside the cylinder 120, and A motor assembly 140 is included as a linear motor that provides driving force to the piston 130. When the motor assembly 140 is driven, the piston 130 may reciprocate in the axial direction.

Hereinafter, the direction is defined.

The term "axial direction" may be understood as a direction in which the piston 130 reciprocates, that is, in the horizontal direction in FIG. 3. And, among the "axial directions", the direction from the suction pipe 104 toward the compression space P, that is, the direction in which the refrigerant flows is referred to as "front", and the opposite direction is defined as "rear". When the piston 130 moves forward, the compression space P may be compressed.

On the other hand, the "radial direction" is a direction perpendicular to the direction in which the piston 130 reciprocates, and can be understood in the vertical direction of FIG. 3. In addition, the direction away from the central axis of the piston 130 is defined as'outside' and the direction closer to'inside'. The central axis of the piston 130, as described above, may coincide with the central axis of the shell 101.

The frame 110 is understood as a configuration for fixing the cylinder 120. The frame 110 is disposed to surround the cylinder 120. That is, the cylinder 120 may be positioned to be received inside the frame 110. For example, the cylinder 120 may be press-fitted inside the frame 110. In addition, the cylinder 120 and the frame 110 may be made of aluminum or an aluminum alloy material.

The cylinder 120 is configured to receive at least a portion of the piston 130. In addition, inside the cylinder 120, a compression space P in which a refrigerant is compressed by the piston 130 is formed.

In this case, the compression space P may be understood as a space formed between the suction valve 135 and the discharge valve 161, which will be described later. And, the suction valve 135 is formed on one side of the compression space (P), the discharge valve 161 is the other side of the compression space (P), that is, on the other side of the suction valve 135 Can be provided.

The piston 130 includes a substantially cylindrical piston body 131 and a piston flange 132 extending radially from the piston body 131. The piston body 131 may reciprocate within the cylinder 120, and the piston flange 132 may reciprocate outside the cylinder 120.

In the front portion of the piston body 131, a suction hole 133 for introducing refrigerant into the compression space P is formed, and in front of the suction hole 133, the suction hole 133 is selectively opened. A suction valve 135 is provided.

In addition, a fastening hole 136a to which a predetermined fastening member 136 is coupled is formed on the front portion of the piston body 131. In detail, the fastening hole 136a is located at the center of the front portion of the piston body 131, and a plurality of suction holes 133 are formed to surround the fastening hole 136a. In addition, the fastening member 136 penetrates the suction valve 135 and is coupled to the fastening hole 136a to fix the suction valve 135 to the front surface of the piston body 131.

The motor assembly 140, the outer stator 141 is fixed to the frame 110 and arranged to surround the cylinder 120, the inner stator 148 spaced apart inside the outer stator 141 And a permanent magnet 146 positioned in a space between the outer stator 141 and the inner stator 148.

The permanent magnet 146 may linearly reciprocate by mutual electromagnetic force between the outer stator 141 and the inner stator 148. In addition, the permanent magnet 146 may be composed of a single magnet having one pole, or a plurality of magnets having three poles may be combined.

The permanent magnet 146 may be installed on the magnet frame 138. The magnet frame 138 has a substantially cylindrical shape, and may be disposed to be inserted into a space between the outer stator 141 and the inner stator 148.

In detail, based on FIG. 3, the magnet frame 138 is coupled to the piston flange 132 and extends radially outwardly and may be bent axially forward. At this time, the permanent magnet 146 may be installed in the front portion of the magnet frame 138. Accordingly, when the permanent magnet 146 reciprocates, the piston 130 may reciprocate in the axial direction with the permanent magnet 146 by the magnet frame 138.

The outer stator 141 includes coil winding bodies 141b, 141c, and 141d and a stator core 141a. The coil winding body includes a bobbin 141b and a coil 141c wound in the circumferential direction of the bobbin.

In addition, the coil winding body further includes a terminal portion 141d that guides a power line connected to the coil 141c to be drawn out or exposed to the outside of the outer stator 141. The terminal portion 141d may be inserted into the terminal insertion hole provided in the frame 110.

The stator core 141a includes a plurality of core blocks formed by stacking a plurality of laminations in a circumferential direction. The plurality of core blocks may be disposed to surround at least a portion of the coil winding bodies 141b and 141c.

A stator cover 149 is provided on one side of the outer stator 141. That is, one side of the outer stator 141 is supported by the frame 110, and the other side can be supported by the stator cover 149.

In addition, the linear compressor 10 further includes a cover fastening member 149a for fastening the stator cover 149 and the frame 110. The cover fastening member 149a penetrates through the stator cover 149 and extends forward toward the frame 110, and may be coupled to a stator fastening hole of the frame 110.

The inner stator 148 is fixed to the outer circumference of the frame 110. In addition, the inner stator 148 is configured by laminating a plurality of laminations in the circumferential direction from the outside of the frame 110.

In addition, the linear compressor 10, coupled to the piston 130, further includes a suction muffler 150 for reducing noise generated from the refrigerant sucked through the suction pipe 104. The refrigerant sucked through the suction pipe 104 flows through the suction muffler 150 and into the piston 130. For example, in the process of the refrigerant passing through the suction muffler 150, the flow noise of the refrigerant may be reduced.

The suction muffler 150 includes a plurality of mufflers 151, 152, and 153. The plurality of mufflers includes a first muffler 151, a second muffler 152, and a third muffler 153, which are coupled to each other.

The first muffler 151 is located inside the piston 130, and the second muffler 152 is coupled to the rear side of the first muffler 151. In addition, the third muffler 153 accommodates the second muffler 152 therein, and may extend to the rear of the first muffler 151.

From the viewpoint of the flow direction of the refrigerant, the refrigerant sucked through the suction pipe 104 may sequentially pass through the third muffler 153, the second muffler 152, and the first muffler 151. In this process, the flow noise of the refrigerant can be reduced.

In addition, the suction muffler 150 further includes a muffler filter 154. The muffler filter 154 may be located at an interface where the first muffler 151 and the second muffler 152 are coupled. For example, the muffler filter 154 may have a circular shape, and the outer circumference of the muffler filter 154 may be supported between the first and second mufflers 151 and 152.

In addition, the linear compressor 10, the supporter 137 for supporting the piston 130 is further included. The supporter 137 is coupled to the rear side of the piston 130, and inside thereof, the muffler 150 may be formed to penetrate. In addition, the piston flange 132, the magnet frame 138 and the supporter 137 may be fastened by a fastening member.

A balance weight 179 may be coupled to the supporter 137. The weight of the balance weight 179 may be determined based on the operating frequency range of the compressor body. In addition, a spring support 137a coupled to the first resonant spring 176a, which will be described later, may be coupled to the supporter 137.

In addition, the linear compressor 10 further includes a rear cover 170 coupled to the stator cover 149 and extending rearward. The rear cover 170 includes three support legs, and the three support legs can be coupled to the rear side of the stator cover 149.

In addition, a spacer 178 may be positioned between the three support legs and the rear surface of the stator cover 149. By adjusting the thickness of the spacer 178, the distance from the stator cover 149 to the rear end of the rear cover 170 can be determined. In addition, the rear cover 170 may be spring-supported to the supporter 137.

In addition, the linear compressor 10 further includes an inflow guide portion 156 coupled to the rear cover 170 to guide the refrigerant inflow into the muffler 150. At least a portion of the inlet guide portion 156 may be inserted inside the suction muffler 150.

In addition, the linear compressor 10 further includes a plurality of resonant springs 176a and 176b in which each natural frequency is adjusted so that the piston 130 can resonate. The plurality of resonant springs 176a and 176b include a first resonant spring 176a supported between the supporter 137 and the stator cover 149, and between the supporter 137 and the rear cover 170. A second resonant spring 176b supported is included.

By the action of the plurality of resonant springs 176a and 176b, stable movement of the driving unit reciprocating inside the linear compressor 10 is performed, and vibration or noise generation due to the movement of the driving unit can be reduced.

In addition, the linear compressor 10 includes a discharge unit 190 and a discharge valve assembly 160.

The discharge unit 190 forms a discharge space (D) of the refrigerant discharged from the compression space (P). The discharge unit 190 includes a discharge cover 191 coupled to the front surface of the frame 110 and a discharge plenum 192 disposed inside the discharge cover 191. In addition, the discharge unit 190 may further include a cylindrical fixing ring 193 in close contact with the inner circumferential surface of the discharge plenum 192.

The discharge cover 191 is coupled to the frame 110, the chamber portion 191a extending in the axial direction forward and the support device fixing portion 191b further extending in the axial direction forward from the chamber portion 191a Is included.

The chamber part 191a and the support device fixing part 191b may be formed in a cylindrical shape. In detail, the chamber part 191a and the support device fixing part 191b each have a predetermined outer diameter in the radial direction and are formed to extend in the axial direction. At this time, the outer diameter of the support device fixing portion 191b is formed smaller than the outer diameter of the chamber portion 191a.

In addition, the chamber portion 191a and the support device fixing portion 191b are provided in an axial rear opening. Accordingly, the chamber portion 191a and the support device fixing portion 191b are formed with an outer side of a cylindrical side and a circular front.

A discharge space D in which the refrigerant discharged from the compression space P is accommodated is formed inside the chamber part 191a. In addition, a fastening groove 191c (see FIG. 6) to which the second support device 200 to be described later is coupled is formed in the support device fixing part 191b.

The fastening groove 191c may be formed to be recessed or penetrated radially inward from the outer circumferential surface of the support device fixing part 191b. In addition, a plurality of fastening grooves 191c may be spaced apart from each other along the outer circumference of the support device fixing portion 191b.

The discharge valve assembly 160 is coupled to the inside of the discharge unit 190, and discharges the refrigerant compressed in the compression space (P) to the discharge space (D). In addition, the discharge valve assembly 160 may include a discharge valve 161 and a spring assembly 163 that provides elastic force in a direction in which the discharge valve 161 is in close contact with the front end of the cylinder 120. .

The spring assembly 163 includes a valve spring 164 in the form of a leaf spring, a spring support 165 positioned at an edge of the valve spring 164 to support the valve spring 164, and the spring support ( A friction ring 166 fitted to the outer circumferential surface of 165) is included.

The front center portion of the discharge valve 161 is fixedly coupled to the center of the valve spring 164. In addition, the rear surface of the discharge valve 161 is in close contact with the front surface (or front end) of the cylinder 120 by the elastic force of the valve spring 164.

When the pressure of the compression space (P) is greater than the discharge pressure, the valve spring 164 is elastically deformed toward the discharge plenum (192). Then, the discharge valve 161 is spaced from the front end of the cylinder 120, the refrigerant is discharged space (D) (or discharge) formed inside the discharge plenum 192 in the compression space (P) Chamber).

That is, when the discharge valve 161 is supported on the front surface of the cylinder 120, the compression space P maintains a closed state, and the discharge valve 161 is spaced from the front surface of the cylinder 120. When the compressed space (P) is opened, the compressed refrigerant inside the compressed space (P) may be discharged.

In addition, the linear compressor 10 may further include a cover pipe 195. The cover pipe 195 discharges the refrigerant flowing into the discharge unit 190 to the outside. At this time, one end of the cover pipe 195 is coupled to the discharge cover 191, the other end is coupled to the discharge pipe 105. In addition, the cover pipe 195, at least a portion is made of a flexible material, may be extended roundly along the inner circumferential surface of the shell 101.

In addition, the linear compressor 10 includes a plurality of sealing members for increasing a coupling force between the frame 110 and components around the frame 110. The plurality of sealing members may have a ring shape.

In detail, the plurality of sealing members include first and second sealing members 129a and 129b provided in a portion where the frame 110 and the cylinder 120 are coupled. At this time, the first sealing member 129a is inserted and installed in the frame 110, and the second sealing member 129b is inserted and installed in the cylinder 120.

In addition, the plurality of sealing members includes a third sealing member 129c provided at a portion where the frame 110 and the inner stator 148 are coupled. The third sealing member 129c may be inserted into and installed on the outer surface of the frame 110.

In addition, the plurality of sealing members may include a fourth sealing member 129d provided in a portion where the frame 110 and the discharge cover 191 are coupled. The fourth sealing member 129d may be inserted into the front surface of the frame 110 and installed.

In addition, the linear compressor 10 includes support devices 185 and 200 for fixing the compressor body to the inside of the shell 101. The support device includes a first support device 185 disposed on the suction side of the compressor body and a second support device 200 disposed on the discharge side of the compressor body.

Here, the first support device 185 may be referred to as a “suction support device”, and the second support device 200 may be referred to as a “discharge support device”.

The first support device 185 includes a suction spring 186 provided in a circular plate spring shape and a suction spring support 187 fitted in the center of the suction spring 186.

The outer edge of the suction spring 186 may be fixed to the rear surface of the rear cover 170 by a fastening member. The suction spring support 187 is coupled to a cover support 102a disposed inside the center of the first shell cover 102. Accordingly, the rear end of the compressor body may be elastically supported at the center of the first shell cover 102.

In addition, a suction stopper 102b may be provided on the inner edge of the first shell cover 102. The suction stopper 102b prevents the main body of the compressor, particularly the motor assembly 140, from colliding with the shell 101 from being damaged due to shaking, vibration, or shock generated during transportation of the linear compressor 10. It is understood as a composition.

In particular, the suction stopper 102b may be located adjacent to the rear cover 170. Accordingly, when shaking occurs in the linear compressor 10, the rear cover 170 may be prevented from being directly transmitted to the motor assembly 140 by interfering with the suction stopper 102b.

The second support device 200 supports the front end of the compressor body to the shell 101. The second support device 200 may be formed in a pair and installed in the discharge unit 190. One end of the second support device 200 is fixed to the discharge cover 191, the other end is in close contact with the inner circumferential surface of the shell 101.

At this time, the pair of second support devices 200 may be coupled to a fastening groove 191c formed in the discharge cover 190. Accordingly, the second support device 200 may support the compressor body in the radial direction.

For example, the pair of second support devices 200 are disposed in a circumferentially spaced state at an angle in the range of 90 to 120 degrees with respect to the lower end portion closest to the bottom surface. That is, the lower part of the compressor body can be supported by two points.

Based on this configuration, the compression process of the refrigerant will be described.

As the linear compressor 10 is driven, the piston 130 reciprocates in the axial direction inside the cylinder 120. That is, power is input to the motor assembly 140, and the piston 130 may be moved together with the permanent magnet 146.

Accordingly, the refrigerant is sucked into the shell 101 through the suction pipe 104. Then, the suction refrigerant flows through the muffler 150 and into the piston 130.

At this time, when the pressure of the compression space (P) becomes less than or equal to the suction pressure of the refrigerant, the suction valve (135) is deformed to open the compression space (P). Accordingly, the suction refrigerant accommodated inside the piston 130 may flow into the compression space (P).

In addition, when the pressure of the compression space (P) is greater than or equal to the suction pressure of the refrigerant, the compression space (P) is closed by the suction valve (135). In addition, the refrigerant accommodated in the compression space P may be compressed by advancing the piston 130.

In addition, when the pressure of the compression space (P) is greater than or equal to the pressure of the discharge space (D), the valve spring 164 is deformed forward and the discharge valve 161 is separated from the cylinder 120. That is, the compression space P is opened by the discharge valve 161. Accordingly, the refrigerant compressed in the compression space (P) flows to the discharge space (D) through the space spaced between the discharge valve (161) and the cylinder (120).

In addition, when the pressure of the compression space (P) is less than the pressure of the discharge space (D), the valve spring 164 provides a restoring force to the discharge valve 161, the discharge valve 161 is the It is in close contact with the front end of the cylinder 120 again. That is, the compression space P is closed by the discharge valve 161.

The refrigerant flowing into the discharge space (D) passes through the cover pipe 195 and the discharge pipe 105 in turn and is discharged to the outside of the shell 101. In addition, the refrigerant discharged from the linear compressor 10 may be sucked into the linear compressor 10 and circulated through a predetermined device.

4 is a view showing a discharge support device according to a first embodiment of the present invention coupled to a discharge cover, Figure 5 is an exploded perspective view of a discharge support device according to a first embodiment of the present invention, Figure 6 is Fig. 4 is a longitudinal sectional view taken along II-II'.

4 to 6, as described above, the discharge support device 200 according to the present invention is coupled to the outer surface of the discharge cover 190. That is, the discharge support device 200 is provided in a pair, it may be coupled to the outer peripheral surface of the support device fixing portion 191b of the discharge cover 190.

The discharge support device 200 includes a pair of damper units.

The pair of damper units are in close contact with the circumferential surface of the support device fixing portion 191b. Specifically, the pair of damper units are respectively coupled to the pair of fastening grooves 191c in a tangential direction orthogonal to the circumferential surface of the support device fixing portion 191b.

In addition, the angle θ formed by the pair of damping units may range from 90 to 120 degrees, and preferably 108 degrees.

In detail, each of the pair of damper units, the support leg 201 formed long in the vertical direction or in the radial direction of the shell 101, and the support device fixing part 191b on the upper surface of the support leg 201 ), the cushioning pad 207, one end of which is fitted to the lower end of the support leg 201, the elastic member 203, and the other end of the elastic member 203 is fitted to the shell 101 of the It may include a shell seat (shell seat) 205 that is seated on the inner peripheral surface.

The elastic member 203 includes a coil spring, and the buffer pad 207 may be made of rubber, silicone, or plastic.

The support leg 201 may include a leg body 201a, a head support 201b, a fastening protrusion 201c, a flange 201d, and an extension 201e.

In more detail, the leg body 201a may have a rod or a column shape that is elongated in the vertical direction. For example, the leg body 201a may be formed such that a horizontal cross-sectional area increases from the bottom to the top. Therefore, the leg body 201a can support the support device fixing part 191b more strongly.

The head support 201b may be formed to be rounded with a curvature corresponding to the curvature of the circumferential surface of the support device fixing part 191b at the top of the leg body 201a. In addition, the buffer pad 207 is stacked on the upper surface of the head support portion 201b so that the upper surface of the head support portion 201b is in close contact with the circumferential surface of the support device fixing portion 191d by the buffer pad 207. Can be.

Then, the fastening protrusion 201c protrudes at a predetermined length from the center of the upper surface of the head support part 201b, and is inserted into the fastening groove 191c of the support device fixing part 191b.

That is, the fastening protrusion 201c may be understood as a member for the support leg 201 to be mounted on the discharge cover 191. And the flange 201d extends in the form of a circular rib at the lower end of the leg body 201a.

The extension portion 201e may have a diameter smaller than the diameter of the flange 201d on the bottom surface of the flange 201d and extend to a predetermined length. At this time, the extension portion 201e may be formed in an empty sleeve shape. Then, the extension portion 201e is inserted into the elastic member 203, and one end of the elastic member 203 is seated on the flange 201d.

The shell sheet 205 may include a bottom portion 205b in close contact with the inner circumferential surface of the shell 101 and a body portion 205a extending from an upper surface of the bottom portion 205b. The outer diameter of the body portion 205a may be formed smaller than the outer diameter of the bottom portion 205b.

And the body portion (205a) is inserted into the interior of the elastic member 203, the other end of the elastic member 203 is seated on the upper surface of the bottom portion (205b). In addition, the bottom surface of the bottom portion 205b may be formed in a shape in which the center is convexly rounded downward.

The buffer pad 207 is formed in a plate shape having a predetermined area, and is placed on the upper surface of the head support 201b. A through hole 207a through which the fastening protrusion 201c penetrates is formed at the center of the buffer pad 207.

For example, the buffer pad 207 may be formed in the same shape and size as the shape and size of the top surface of the head support 201b. In other words, when the buffer pad 207 is fitted to the fastening protrusion 201c, the upper surface of the head support 201b may be provided in a shape that is completely covered by the buffer pad 207.

In this embodiment, the buffer pad 207 may be formed in a rectangular shape with a through hole 207a formed at the center, but may be formed in an oval or circular ring shape. That is, it is revealed that there is no limitation on the shape and size of the buffer pad 207.

In addition, each of the pair of damper units may further include a washer 209 in close contact with the upper surface of the buffer pad 207.

The washer 209 with the buffer pad 207, the support leg 201 is inserted into the fastening groove 191c of the support device fixing part 191b, the support leg 201 is rotated It serves to prevent it.

The washer 209 is made of rubber, silicone, or plastic, and may have an empty ring shape, for example. The washer 209 has a through hole 209a formed in the center, and the through hole 209a is fitted into the fastening protrusion 201c.

That is, the buffer pad 207 is primarily fitted to the fastening protrusion 201c, and the washer 209 can be fitted secondarily. Accordingly, in the state in which the support leg 201 is inserted into the support device fixing part 191b, the phenomenon of turning is prevented and the fastening force can be improved.

On the other hand, the extension portion 201e of the support leg 201 and the body portion 205a of the shell sheet 205 are inserted at both ends of the elastic member 203, with the extension portion 201e. The body parts 205a maintain a spaced state without touching each other.

Then, when the linear compressor 10 is driven to transmit vibration to the support device fixing part 191b, the elastic member 203 expands and contracts the extension part 201e and the body part 205a. You can repeat the motions of getting closer and farther away from each other.

Here, it is preferable that the elastic modulus of the elastic member 203 is appropriately set so that even when vibration occurs, the extension portion 201e and the body portion 205a do not come into contact with each other to generate impact noise.

In addition, since the pair of damping units connects the support device fixing part 191b and the shell 101 in an inverted'V' shape as shown, not only the compressor is stably supported, but also a screw and The damping unit and the support device fixing part 191b can be stably connected without using the same fastening member.

In addition, since there is no need for a separate fastening member in the connection part of the damping unit and the shell 101, the number of parts is reduced and the compressor body can be easily supported.

Meanwhile, the shell sheet 205 may be formed of a rubber or silicone material. That is, the shell sheet 205 may be formed of a material having elastic force in order to minimize transmission of vibration generated in the compressor body to the shell 101 side.

However, when the shell sheet 205 is formed of a rubber material, since the frictional force is increased on the contact surface of the shell 101 and the shell sheet 205, the discharge support device 200 is the shell 101 Strongly adheres to the inner peripheral surface of the. In this case, although the function of absorbing noise or vibration of the discharge support device 200 is improved, the discharge support device 200 is precisely aligned with the inner circumferential surface of the shell 101 in a state assembled to the compressor body. There is a difficult problem.

In other words, when the discharge support device 200 is assembled to the compressor main body, when installed inside the shell 101, the frictional force is large on the contact surface between the shell sheet 205 and the shell 101, The discharge support device 200 has a problem that it is difficult to slide to a fixed position.

In addition, even if the discharge support device 200 is aligned in a fixed position, the position of the discharge support device 200 may be moved by shaking, vibration, or shock generated during transportation of the linear compressor 10, In this case, due to the frictional force problem of the above-described discharge support device 200, there is a problem that it is difficult to move back to the correct position.

If the main body of the compressor or the discharge support device 200 is not aligned in the correct position, there is a problem in that noise distribution occurs due to a drop in rotational characteristics of the discharge support device 200 for pivoting motion.

Therefore, in the present invention, in order to solve the above problems, it is characterized in that the fixing core 210 is inserted inside the shell sheet 205.

Specifically, each of the pair of damper units may further include a fixing shim 210 inserted inside the shell sheet 205.

The fixing shim 210 may be inserted into the shell sheet 205 and at least a portion may contact the inner circumferential surface of the shell 101. At this time, the fixing core 210 may selectively contact the inner circumferential surface of the shell 101.

The fixing shim 210 is disposed in the groove 205c formed in the lower portion of the shell sheet 205. Specifically, a groove 205c into which the fixing core 210 is inserted is formed in the bottom portion 205b of the shell sheet 205. The groove 205c is formed by being recessed or penetrated upward from the center of the lower surface of the bottom portion 205b.

The fixing core 210 may be formed in a cylindrical shape. And at least a portion of the fixing core 210 is exposed to the outside of the shell sheet 205. That is, the portion where the fixing shim 210 is exposed to the outside may be understood as the bottom surface 210a of the fixing shim 210.

In addition, the bottom surface 210a of the fixing core 210 may be convexly rounded downward. At this time, the curvature corresponding to the bottom surface 210a of the fixing core 210 may be the same as the curvature of the bottom portion 205b of the shell sheet 205. That is, when the fixing core 210 is inserted into the shell sheet 205, the bottom surface of the bottom portion 205b and the bottom surface 210a of the fixing core 210 form the same curvature and can be connected without a step.

In addition, the fixing core 210 may be formed of a plastic material. For example, the fixing core 210 may be made of engineering plastics that withstand high temperatures. In addition, the fixing shim 210 may be pressed into the groove 205c of the shell sheet 205.

7 is a cross-sectional view showing that the discharge support device according to the first embodiment of the present invention is in close contact with the inner surface of the shell, and FIG. 8 shows that the discharge support device according to the first embodiment of the present invention pivots on the inner surface of the shell It is a cross section.

7 and 8, the discharge support device 200 may be seated on the inner circumferential surface of the shell 101 while being coupled to the compressor body.

As described above, the extension portion 201e of the support leg 201 and the body portion 205a of the shell sheet 205 are inserted at both ends of the elastic member 203, and the extension portion (201e) and the body portion (205a) maintains a spaced state without touching each other.

Then, when the linear compressor 10 is driven to transmit vibration to the support device fixing part 191b, the elastic member 203 expands and contracts the extension part 201e and the body part 205a. You can repeat the motions of getting closer and farther away from each other.

That is, in the process of the piston 130 reciprocating linear motion in the interior of the cylinder 120, the compressor body may generate vibration in the axial direction. Accordingly, the pair of discharge support devices 200 supporting the main body of the compressor are capable of pivotal movement or pendulum movement in the axial direction. In this process, vibration transmitted from the compressor body to the shell 101 side is reduced.

On the other hand, as shown in Figure 7, when the discharge support device 200 is positioned perpendicular to the inner circumferential surface of the shell 101, the fixed core 210 of the discharge support device 200 is the shell ( 101) is in close contact or contact with the inner peripheral surface. In this case, since the frictional force on the contact surface of the discharge support device 200 and the shell 101 is reduced, there is an advantage that the sliding movement of the discharge support device 200 with respect to the inner peripheral surface of the shell 101 becomes easy. That is, the compressor body or the discharge support device 200 can be smoothly moved on the inner circumferential surface of the shell 101.

For example, when the main body of the compressor deviates from a fixed position by an external force, it becomes easy for the main body of the compressor to return to its original position by sliding movement of the discharge support device 200. That is, even if shaking or vibration occurs in the process of installing the compressor body inside the shell 101, the operator can rearrange the compressor body to the correct position by sliding movement of the discharge support device 200. . That is, the work convenience of the worker can be promoted.

On the other hand, as shown in Figure 8, the discharge support device 200 is able to pivot in the front-rear direction by vibrations transmitted from the compressor body.

Specifically, the compressor body may vibrate in the front-rear direction by the reciprocating linear motion of the piston 130. Then, when vibration occurs in the compressor body, vibration is transmitted to the discharge support device 200 that supports the compressor body to the shell 101.

In this process, the ejection support device 200 is capable of pivot or pendulum movement in the front-rear direction. That is, the discharge support device 200 may pivot in the front-rear direction in response to vibrations transmitted from the compressor body.

When the discharge support device 200 starts pivoting, frictional force is generated on the contact surface of the shell sheet 205 and the shell 101 of the discharge support device 200. In particular, since the bottom portion 205b forming the bottom surface of the shell sheet 205 is formed of a material such as rubber or silicone, strong frictional force may occur on the contact surface between the shell sheet 205 and the shell 101. have.

With this configuration, when the compressor body is installed on the shell 101, the compressor body can be aligned to the correct position, and when the linear compressor 10 is driven, from the compressor body to the shell 101 side. The transmitted vibration can be effectively reduced.

On the other hand, in the present embodiment, the fixing core 210 is inserted into the shell sheet 205, thereby reducing frictional force on the contact surface between the shell sheet 205 and the shell 101 so that the compressor body is the shell 101. ) Has been described a structure that facilitates sliding movement on the inner circumferential surface.

However, in another embodiment, the fixing core 210 is not inserted into the shell sheet 205, and a material for slip movement may be provided on a part of the bottom surface of the shell sheet 205.

For example, a Teflon tape may be provided at the center of the bottom surface of the shell sheet 205. That is, the Teflon tape is adhered to the center of the bottom surface of the shell sheet 205, thereby reducing frictional force on the contact surface between the shell sheet 205 and the shell 101.

Alternatively, the center portion of the bottom surface of the shell sheet 205 may be coated with a Teflon material, thereby reducing frictional forces against the bottom surface of the shell sheet 205. In this case, a portion of the bottom surface of the shell sheet 205 is coated with Teflon, thereby reducing frictional force on the contact surface between the shell sheet 205 and the shell 101, and accordingly the compressor body is attached to the inner peripheral surface of the shell 101. The sliding movement can be facilitated.

9 is a cross-sectional view showing that the discharge support device according to the second embodiment of the present invention is in close contact with the inner surface of the shell.

This embodiment is the same as the first embodiment in other parts, but is characterized in that there are differences in the structure of the discharge support device and the shell. Therefore, hereinafter, only the characteristic parts of the present embodiment will be described, and the same parts as the first embodiment will be used.

Referring to FIG. 9, the discharge support apparatus 300 according to the present embodiment includes a pair of damper units.

Each of the pair of damper units includes a support leg 301 that is elongated in the vertical direction, a buffer pad 307 that is placed on the upper surface of the support leg 301 and is in close contact with the support device fixing part 191b, An elastic member 303 having one end fitted to the lower end of the support leg 301, and a shell sheet 305 fitted to the other end of the elastic member 303 and seated on an inner circumferential surface of the shell 101 can do.

In addition, each of the pair of damper units may further include a washer 309 in close contact with an upper surface of the buffer pad 307.

The structures of the support leg 301, the elastic member 303, the buffer pad 307, and the washer 309 are the same as in the first embodiment.

However, the shell sheet 305 according to the present embodiment is characterized in that the groove 305c into which the protrusion 101a formed on the inner peripheral surface of the shell 101 is inserted is formed.

Specifically, the shell sheet 305 may include a bottom portion 305b in close contact with the inner peripheral surface of the shell 101 and a body portion 305a extending from an upper surface of the bottom portion 305b.

The bottom portion 305b may have a convex downward shape. In addition, the outer diameter of the body portion 305a may be formed smaller than the outer diameter of the bottom portion 305b.

And the body portion 305a is inserted into the elastic member 303, and the other end of the elastic member 303 is seated on the upper surface of the bottom portion 305b. In addition, the bottom surface of the bottom portion 305b may be formed in a shape in which the center is convexly rounded downward.

In addition, a groove 305c in which the protrusion 101a formed on the inner circumferential surface of the shell 101 is inserted is formed in the shell sheet 305. The groove 305c is formed under the shell sheet 305.

The groove 305c is formed by being recessed or penetrated upward from the center of the bottom surface of the bottom portion 305b. That is, the groove 305c is formed to extend through the bottom portion 305b to the body portion 305a. At this time, the size and shape of the groove 305c is formed to correspond to the protrusion 101a formed on the inner circumferential surface of the shell 101.

On the other hand, the shell 101 is provided with a protrusion 101a on the inner circumferential surface of the shell 101.

The protruding portion 101a may be formed to protrude a predetermined length from the inner circumferential surface of the shell 101 in a radially inner direction. The protrusion 101a may be understood as a configuration for finding the correct position of the compressor body by being fitted into the groove 305c formed in the shell sheet 305a.

That is, when the compressor body is installed inside the shell 101, the groove 305c formed in the shell sheet 305 is fitted to the protrusion 101a to connect the compressor body or the discharge support device 300. Can be installed in the correct location.

In addition, the protrusion 101a may be integrally formed with the shell 101. That is, the protrusion 101a may be formed of a metal material and molded together with the shell 101.

Alternatively, the protrusion 101a is composed of a separate metal component, and may be welded to the inner circumferential surface of the shell 101. However, the present invention is not limited thereto, and the manner in which the protrusion 101a is provided on the inner circumferential surface of the shell 101 is various.

10 is a cross-sectional view showing that the discharge support device according to the third embodiment of the present invention is in close contact with the inner circumferential surface of the shell.

This embodiment is the same as the first embodiment in other parts, but is characterized in that there are differences in the structure of the discharge support device and the shell. Therefore, hereinafter, only the characteristic parts of the present embodiment will be described, and the same parts as the first embodiment will be used.

Referring to FIG. 10, the discharge support device 400 according to the present embodiment includes a pair of damper units.

Each of the pair of damper units includes a support leg 401 formed elongated in the vertical direction, a buffer pad 407 placed on an upper surface of the support leg 401 and in close contact with the support device fixing part 191b, An elastic member 403 having one end fitted to the lower end of the support leg 401, and a shell sheet 405 fitted to the other end of the elastic member 403 and seated on an inner circumferential surface of the shell 101 can do.

In addition, each of the pair of damper units may further include a washer 409 in close contact with the upper surface of the buffer pad 407.

The structures of the support leg 401, the elastic member 403, the buffer pad 407, and the washer 409 are the same as in the first embodiment.

However, the shell sheet 405 according to the present embodiment is characterized in that the groove 405c into which the protrusion 101b formed on the inner peripheral surface of the shell 101 is inserted is formed.

Specifically, the shell sheet 405 may include a bottom portion 405b in close contact with the inner circumferential surface of the shell 101 and a body portion 405a extending from an upper surface of the bottom portion 405b. The outer diameter of the body portion 405a may be formed smaller than the outer diameter of the bottom portion 405b.

And the body portion 405a is inserted into the elastic member 403, and the other end of the elastic member 403 is seated on the upper surface of the bottom portion 405b. In addition, the bottom surface of the bottom portion 405b may be formed in a shape in which the center is convexly rounded downward.

In addition, a groove 405c into which the protrusion 101b formed on the inner peripheral surface of the shell 101 is inserted is formed in the shell sheet 405. The groove 405c is formed under the shell sheet 405.

The groove 405c is formed by being recessed or penetrated upward from the center of the lower surface of the bottom portion 405b. That is, the groove 405c is formed to extend through the bottom portion 405b to the body portion 405a. At this time, the size and shape of the groove 405c is formed to correspond to the protrusion 101b formed on the inner circumferential surface of the shell 101.

On the other hand, the shell 101 is formed with a projecting portion (101b) of a portion of the inner peripheral surface of the shell 101 protrudes inward.

The protrusion 101b is formed by partially recessing the outer peripheral surface of the shell 101 in the inner peripheral surface direction. Accordingly, the protruding portion 101b may protrude a predetermined length radially inward from the inner circumferential surface of the shell 101. For example, a part of the surface of the shell 101 may be formed in an embossing shape.

The protrusion 101b may be understood as a configuration for finding the correct position of the compressor body by being fitted to the groove 405c formed in the shell sheet 405a.

That is, when the compressor body is installed inside the shell 101, the groove 405c formed in the shell sheet 405 is fitted into the protrusion 101b to connect the compressor body or the discharge support device 400. Can be installed in the correct location.

Claims (20)

Shell;
A compressor body disposed inside the shell; And
It is coupled to the compressor body, and includes a support device for supporting the compressor body to the shell,
The support device,
A support leg coupled to the compressor body;
An elastic member having one end coupled to the support leg;
The other end of the elastic member is coupled, the shell sheet is in close contact with the inner peripheral surface of the shell; And
A linear compressor including a fixing shim inserted into the shell seat and at least partially contacting the inner circumferential surface of the shell. According to claim 1,
The shell sheet is formed of a rubber or silicone material,
The fixing shim is a linear compressor formed of an engineering plastic material. According to claim 1,
The compressor body includes a discharge cover forming a discharge space in which a refrigerant compressed at high pressure is accommodated,
The support leg is a linear compressor coupled to the outer surface of the discharge cover. The method of claim 3,
The support leg,
A leg body extending in the radial direction of the shell;
A head support formed roundly to contact the outer surface of the discharge cover at an end of the leg body; And
It includes a mounting projection protruding from the center of the head support,
The mounting projection is a linear compressor that is inserted into the outer surface of the discharge cover. The method of claim 4,
The discharge cover,
A chamber portion forming the discharge space; And
And a support device fixing part extending in the axial direction from the chamber part,
The mounting projection, the linear compressor is inserted into the fastening groove formed in the support device fixing portion. The method of claim 5,
The outer diameter of the support device fixing portion is formed smaller than the outer diameter of the chamber portion,
The fastening groove is a linear compressor formed by being recessed inward from the outer circumferential surface of the support device fixing part. According to claim 1,
The shell sheet,
A bottom portion in close contact with the inner circumferential surface of the shell; And
It extends radially inward from the bottom portion, and includes a body portion inserted into the elastic member,
The fixing shim, the linear compressor is inserted into the body portion through the bottom portion. The method of claim 7,
At least a portion of the fixing shim, the linear compressor exposed to the outside of the bottom portion. The method of claim 7,
A linear compressor in which the bottom surface of the bottom portion is convexly rounded downward. The method of claim 9,
The bottom surface of the fixed seam is convexly rounded downward,
The bottom surface curvature of the fixed seam is formed in the same manner as the bottom surface curvature of the bottom portion. Shell;
A compressor body disposed inside the shell; And
It is coupled to the compressor body, and includes a support device for supporting the compressor body to the shell,
The support device,
A support leg coupled to the compressor body;
An elastic member having one end coupled to the support leg; And
The other end of the elastic member is coupled, including a shell sheet in close contact with the inner peripheral surface of the shell,
The shell sheet, the linear compressor is inserted into the protrusion provided on the inner peripheral surface of the shell. The method of claim 11,
The compressor body includes a discharge cover forming a discharge space in which a refrigerant compressed at high pressure is accommodated,
The support device is a linear compressor coupled to the outer surface of the discharge cover. The method of claim 12,
The support leg,
A leg body extending in the radial direction of the shell;
A head support portion formed round to contact the outer circumferential surface of the discharge cover at an end of the leg body; And
It includes a mounting projection protruding from the center of the head support,
The mounting projection is a linear compressor that is inserted into the outer surface of the discharge cover. The method of claim 13,
The discharge cover,
A chamber portion forming the discharge space; And
And a support device fixing part extending in the axial direction from the chamber part,
The mounting projection, the linear compressor is inserted into the fastening groove formed in the support device fixing portion. The method of claim 14,
The outer diameter of the support device fixing portion is formed smaller than the outer diameter of the chamber portion,
The fastening groove is a linear compressor formed by being recessed inward from the outer circumferential surface of the support device fixing part. The method of claim 11,
The shell sheet,
A bottom portion in close contact with the inner circumferential surface of the shell; And
It extends from the bottom portion to the radially inner side of the shell, and includes a body portion inserted into the elastic member,
The protrusion, the linear compressor is inserted into the body portion through the bottom portion. The method of claim 16,
A linear compressor in which the bottom surface of the bottom portion is convexly rounded downward. The method of claim 17,
The bottom portion is recessed upward from the center of the bottom surface, a linear compressor in which a groove into which the protrusion is inserted is formed. The method of claim 11,
The protrusion, the linear compressor is welded to the inner peripheral surface of the shell. The method of claim 11,
The protruding portion, a linear compressor formed by a part of the outer peripheral surface of the shell is recessed inward.

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