Reciprocating compressor

Abstract

This invention discloses a reciprocating compressor. The reciprocating compressor may include a housing, a drive motor, a drive shaft, a piston, a cylinder block, a muffler assembly, and a clamping member. The clamping member may be provided with a clamping elastic portion. When the clamping member is tightened, the clamping elastic portion elastically deforms, causing the muffler assembly to press against the cylinder block. Thus, when the clamping fixing part is tightened to the front end face of the cylinder block, the clamping elastic portion opens and extends, thereby acting as a buffer. Therefore, it not only suppresses the deformation of the muffler assembly made of plastic material but also firmly fixes the muffler assembly to the cylinder block.

Description

Technical Field

[0001] This invention relates to reciprocating compressors. Background Technology

[0002] Compressors can be classified into various types based on their compression method and the type of refrigerant used, such as rotary compressors, scroll compressors, and reciprocating compressors. A reciprocating compressor compresses the refrigerant by the reciprocating motion of a piston within a cylinder.

[0003] Reciprocating compressors can be classified into vibratory and coupled types based on the piston's driving method. A vibratory reciprocating compressor compresses the refrigerant by having the piston connected to the movable element of a reciprocating motor vibrating and reciprocating within the cylinder. A coupled reciprocating compressor compresses the refrigerant by having the piston connected to the rotating shaft of a rotary motor, which also compresses the refrigerant during the cylinder's reciprocating motion.

[0004] In a vibratory reciprocating compressor, the suction side and discharge side can be arranged on one side with the piston as the center, or they can each be arranged on both sides. However, in the case of a connected reciprocating compressor, the suction side and discharge side are mostly arranged together on one side of the piston. This invention relates to a connected reciprocating compressor, and hereafter, a reciprocating compressor can be defined as a connected reciprocating compressor.

[0005] In a reciprocating compressor, the intake muffler and the exhaust muffler can be installed separately, or they can be integrated into a single assembly. This embodiment focuses on an example where the intake muffler and the exhaust muffler are integrated into a single assembly, but the same principle applies even when the intake muffler and the exhaust muffler are installed separately.

[0006] Patent document (Korean Patent Publication No. 10-2016-0055499) discloses a reciprocating compressor having an intake muffler and an exhaust muffler formed as an assembly. In this case, since the muffler assembly is made of plastic material, additional clamping members are used to fasten its bolts to the cylinder block in order to improve the reliability of fastening the muffler assembly. The clamping members are formed of a rigid body with greater rigidity than the muffler assembly, such as spring steel, thereby preventing the clamping members from being crushed when the bolts are tightened.

[0007] However, as mentioned above, since the clamping member is formed of a rigid body, the muffler assembly made of plastic material can be firmly fastened when the bolt is tightened to the cylinder block by preventing the clamping member from flattening. However, due to processing errors and / or assembly errors, the clamping member may not fit tightly against the muffler assembly, resulting in the muffler assembly not being firmly fixed, or conversely, it may fit too tightly against the muffler assembly, which may cause deformation of the muffler assembly.

[0008] In addition, existing clamping members can improve the fixing force of the muffler assembly by providing separate elastic members between one side of the clamping member and the side of the muffler assembly opposite to the clamping member. However, as mentioned above, this may not only over-pressurize the muffler assembly, but also increase manufacturing costs due to the addition of extra elastic members. Summary of the Invention

[0009] The problem to be solved

[0010] The purpose of this invention is to provide a reciprocating compressor that can not only suppress the deformation of the muffler assembly, but also firmly fix the muffler assembly to the cylinder block.

[0011] Another objective of this invention is to provide a reciprocating compressor equipped with a clamping member for fixing a muffler assembly to a cylinder block, which, when the clamping member is tightened, not only suppresses the deformation of the muffler assembly but also securely fixes the muffler assembly to the cylinder block.

[0012] Another objective of this invention is to provide a reciprocating compressor in which, when a clamping member is used to secure the muffler assembly to the cylinder block, the clamping member is elastically deformed, thereby not only suppressing the deformation of the muffler assembly but also securing the muffler assembly to the cylinder block more firmly.

[0013] Another objective of this invention is to provide a reciprocating compressor that minimizes the number of components used to secure the muffler assembly to the cylinder block, thereby reducing manufacturing costs by reducing the number of components and / or assembly time.

[0014] Technical solutions to the problem

[0015] To achieve the objectives of this invention, a reciprocating compressor comprising a housing, a drive motor, a drive shaft, a piston, a cylinder block, a muffler assembly, and a clamping member can be provided. The drive motor can be disposed within the internal space of the housing. The drive shaft can be coupled to the rotor of the drive motor. The piston can be coupled to the drive shaft to perform reciprocating motion. The cylinder block can have a cylinder barrel, allowing the piston to reciprocally insert into the cylinder barrel, with the cylinder barrel and piston forming a compression chamber together. The muffler assembly can be coupled to the cylinder block and communicate with the compression chamber. The clamping member can fix the muffler assembly to the cylinder block. The clamping member can be provided with a clamping elastic portion, which, when the clamping member is tightened, elastically deforms to press the muffler assembly against the cylinder block. Thus, deformation of the muffler assembly can be suppressed while firmly fixing the muffler assembly to the cylinder block.

[0016] As an example, the clamping member may include a clamping body and a plurality of clamping fixing parts. The clamping body can support the muffler assembly, and the clamping fixing parts can extend from the clamping body and be fixed to the cylinder block. The clamping elastic part can be bent to form the clamping fixing part. Thus, when the clamping fixing part is fastened to the front end face of the cylinder block, the clamping elastic part opens and extends, thereby acting as a buffer, thereby suppressing the deformation of the muffler assembly made of plastic material while firmly fixing the muffler assembly to the cylinder block.

[0017] For example, the clamping elastic portion can be bent to form on the side of the muffler assembly. This prevents the clamping member from colliding with the housing when the compressor body vibrates by suppressing any increase in the height of the clamping member, including the clamping elastic portion.

[0018] Specifically, the clamping fixing portion can be bent and extended from the clamping body portion toward the cylinder block. The clamping elastic portion can be formed by bending between the two ends of the clamping fixing portion. This effectively suppresses the increase in the height of the clamping member including the clamping elastic portion.

[0019] As another example, the clamping elastic portion can be bent to form the front of the muffler assembly. This allows for an increase in the curvature of the clamping elastic portion without expanding the space used for fastening the clamping fixing portion, thereby effectively suppressing deformation of the muffler assembly while securely fixing the muffler assembly.

[0020] For example, the clamping elastic portion can be bent from the clamping body portion toward the outer casing, and then toward the cylinder block, thereby forming a bent shape. Thus, the elastic force can be increased by ensuring a relatively large curvature of the clamping elastic portion.

[0021] As another example, the muffler assembly may include an upper muffler and a lower muffler. The upper muffler may be formed as a single unit consisting of an upper intake muffler and an upper exhaust muffler separated by a connecting muffler. The lower muffler may be provided with a lower intake muffler that forms an intake space by combining with the upper intake muffler and a lower exhaust muffler that forms an exhaust space by combining with the upper exhaust muffler. The clamping member can support the connecting muffler and combine with the cylinder block. Thus, even when the upper intake muffler and the upper exhaust muffler are integrally connected to both sides of the connecting muffler, deformation of the connecting muffler can be suppressed while the connecting muffler is firmly fixed to the cylinder block.

[0022] For example, one side of the clamping member and the side of the connecting muffler facing the clamping member can be formed flat so that they are in surface contact with each other. Thus, when the clamping member is tightened, the clamping body applies uniform pressure to the entire area of ​​the connecting muffler, thereby more effectively suppressing deformation of the connecting muffler while more firmly securing it.

[0023] As another example, the clamping member may include a clamping body and a plurality of clamping fixing portions. The clamping body can support the muffler assembly, and the clamping fixing portions extend from the clamping body and are fixed to the cylinder block together with the muffler assembly. The clamping elastic portion can be bent between the two ends of the clamping fixing portion. This effectively suppresses any increase in the height of the clamping member including the clamping elastic portion.

[0024] For example, the muffler assembly may include a muffler body and a cylinder head. The muffler body may have an intake space and an exhaust space, and the cylinder head may accommodate the muffler body and be fixed to the cylinder block. The clamping member may pressurize the cylinder head and engage it together with the cylinder block. This allows for the suppression of cylinder head deformation while securely fixing the cylinder head to the cylinder block.

[0025] Specifically, a clamping support surface, supported by the clamping body, can be formed on the side of the cylinder cover facing the clamping member. A plurality of clamping fixing surfaces can be formed around the periphery of the clamping support surface, and the end of the clamping fixing part is pressed against the plurality of clamping fixing surfaces and fastened to the cylinder block. The clamping fixing surface can be formed to be recessed further towards the cylinder block than the clamping support surface. Thus, the clamping fixing surface is formed to be lower than the clamping support surface, thereby creating a height difference between the clamping support surface and the clamping fixing surface.

[0026] More specifically, the clamping elastic portion can be formed between the clamping support surface and the clamping fixing surface of the cylinder cover. Thus, the clamping elastic portion is formed on the side of the cylinder cover and can suppress the collision between the clamping member and the outer casing when the compressor body vibrates.

[0027] Furthermore, the clamping support surface and the side of the clamping body portion facing the clamping support surface can be formed flat to make surface contact with each other. This allows the clamping body portion to apply uniform pressure to the entire area of ​​the cylinder head when the clamping member is tightened, thereby more effectively suppressing deformation of the cylinder head while more firmly fixing it.

[0028] As another example, the clamping fixing part can extend from both ends of the clamping body part in two directions orthogonal to the length direction of the clamping body part. This allows for an even distribution of the fixing force transmitted from the clamping fixing part to the clamping body part, enabling the clamping body part to uniformly support the cylinder block.

[0029] Invention Effects

[0030] The reciprocating compressor of this embodiment includes a housing, a drive motor, a drive shaft, a piston, a cylinder block, a muffler assembly, and a clamping member. The clamping member may be provided with a clamping elastic portion. When the clamping member is tightened, the clamping elastic portion elastically deforms, causing the muffler assembly to press against the cylinder block. Thus, when the clamping fixing part is tightened to the front end face of the cylinder block, the clamping elastic portion opens and extends, thereby acting as a buffer. Therefore, it not only suppresses the deformation of the muffler assembly made of plastic material but also firmly fixes the muffler assembly to the cylinder block.

[0031] In the reciprocating compressor according to this embodiment, the clamping elastic portion can be bent to form on the side of the muffler assembly. This prevents the clamping member from colliding with the housing when the compressor body vibrates by suppressing any increase in the height of the clamping member including the clamping elastic portion.

[0032] According to the reciprocating compressor of this embodiment, the clamping elastic portion can be bent to form the front of the muffler assembly. This allows for an increase in the curvature of the clamping elastic portion without expanding the space used for fastening the clamping fixing portion, thereby effectively suppressing deformation of the muffler assembly while firmly fixing the muffler assembly.

[0033] According to the reciprocating compressor of this embodiment, the clamping member includes a clamping body and a plurality of clamping fixing parts that are fastened to the cylinder block together with the muffler assembly. The clamping elastic part can be bent between the two ends of the clamping fixing part, thereby enabling the clamping member to pressurize the cylinder head and engage with it on the cylinder block. This allows for increasing the height of the clamping member including the clamping elastic part while suppressing deformation of the cylinder head, and securely fixing the cylinder head to the cylinder block.

[0034] According to the reciprocating compressor of this embodiment, the clamping fixing part can extend from both ends of the clamping body part in two directions orthogonal to the length direction of the clamping body part. As a result, the fixing force transmitted from the clamping fixing part to the clamping body part can be evenly distributed, so that the clamping body part can evenly support the clamping cylinder block. Attached Figure Description

[0035] Figure 1 This is a perspective view showing the housing and interior of the reciprocating compressor of this embodiment.

[0036] Figure 2 It is shown Figure 1 A cross-sectional view of the interior of a reciprocating compressor.

[0037] Figure 3 This is a perspective view showing the clamping member of this embodiment disassembled.

[0038] Figure 4 It is Figure 3 The clamping components are assembled and shown in the front view.

[0039] Figure 5 It is along Figure 4 A sectional view of the “Ⅸ-Ⅸ” line.

[0040] Figure 6a and Figure 6b This is a schematic diagram illustrating the assembly process of the clamping components. Figure 6a This is a diagram showing the state before tightening. Figure 6b This is a diagram showing the result after tightening.

[0041] Figure 7 This is a perspective view showing an exploded view of another embodiment of the clamping member.

[0042] Figure 8 It is Figure 7 The clamping components are assembled and shown in the front view.

[0043] Figure 9 It is along Figure 8 A cross-sectional view of the "X-X" line.

[0044] Figure 10 This is a perspective view showing an exploded view of yet another embodiment of the clamping member.

[0045] Figure 11 It is Figure 10 The clamping components are assembled and shown in the front view.

[0046] Figure 12 yes Figure 11 Top view. Detailed Implementation

[0047] Hereinafter, the reciprocating compressor of the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings. As mentioned above, the intake muffler and the exhaust muffler in the muffler can be provided independently or connected to each other to form a muffler assembly. This embodiment will be described with an example in which the intake muffler and the exhaust muffler are connected to each other to form a muffler assembly. However, it is not limited to this, and the same applies when the intake muffler and the exhaust muffler are provided independently.

[0048] In addition to reciprocating compressors, silencer assemblies can also be applied to other types of compressors, but this embodiment focuses on an example applied to a reciprocating compressor.

[0049] Furthermore, in the following explanation, with the piston as the center, the compression chamber side is defined as the front, and the opposite side as the rear. Relatedly, the side of the muffler assembly facing the outer casing is defined as the front, and the side facing away from the outer casing is defined as the rear.

[0050] Figure 1 This is a perspective view showing the interior of the reciprocating compressor of this embodiment. Figure 2 It is shown Figure 1 A cross-sectional view of the interior of a reciprocating compressor.

[0051] Reference Figure 1 and Figure 2 The reciprocating compressor of this embodiment may include: a housing 110 forming the exterior; an electric motor 120 disposed in the internal space 110a of the housing 110 and providing driving force; a compression unit 130 that compresses refrigerant by receiving driving force from the electric motor 120; an intake and discharge unit 140 that leads the refrigerant to the compression chamber 130a and discharges the compressed refrigerant; and a vibration damping unit 150 that buffers the impact generated when the housing 110 and the compressor body C collide.

[0052] The housing 110 may include a lower housing 111 and an upper housing 112. The lower housing 111 and the upper housing 112 may be combined to form a sealed internal space 110a. The internal space 110a of the housing 110 may accommodate the electric motor 120 and the compression motor 130. The housing 110 may be made of lightweight aluminum alloy (hereinafter referred to as aluminum) with high thermal conductivity.

[0053] The lower outer shell 111 can be formed into a generally hemispherical shape. A suction pipe 115, a discharge pipe 116, and a process pipe 117 can be respectively connected through the lower outer shell 111. These suction pipes 115, discharge pipes 116, and process pipes 117 can be connected to the lower outer shell 111 using an insert die-casting process.

[0054] The upper outer shell 112 can be formed in a generally hemispherical shape, like the lower outer shell 111. The upper outer shell 112 can be attached to the lower outer shell 111 on the upper side of the lower outer shell 111 to form the aforementioned internal space 110a of the outer shell 110.

[0055] Reference Figure 1 and Figure 2In this embodiment, the electric unit (or drive motor) 120 may include a stator 121 and a rotor 122. The stator 121 may be elastically supported on the inner space 110a of the outer casing 110, that is, the bottom surface of the lower outer casing 111, and the rotor 122 may be rotatably disposed on the inner side of the stator 121.

[0056] The stator 121 may include a stator core 1211 and a stator coil 1212.

[0057] The stator core 1211 is made of metal materials such as electrical steel plate. If a voltage is applied to the electric motor 120 from the outside, the stator core 1211, together with the stator coil 1212 and the rotor 122 described later, performs electromagnetic interaction caused by electromagnetic force.

[0058] The stator core 1211 is formed in a generally quadrilateral cylindrical shape. For example, the inner circumferential surface of the stator core 1211 can be formed as a circle, while its outer circumferential surface can be formed as a quadrilateral shape. The stator core 1211 can be fixed to the bottom surface of the cylinder block 131 described later using stator fastening bolts (not shown).

[0059] With the stator core 1211 separated from the inner surface of the housing 110 in both the axial and radial directions, the lower end of the stator core 1211 can be elastically supported on the bottom surface of the housing 110 by the support spring 123. This prevents vibrations generated during operation from being directly transmitted to the housing 110.

[0060] The stator coil 1212 can be wound inside the stator core 1211. As described above, if a voltage is received from the outside, the stator coil 1212 generates an electromagnetic force and performs an electromagnetic interaction with the stator core 1211 and the rotor 122. As a result, the electric motor 120 generates a driving force for reciprocating the compression unit 130.

[0061] The rotor 122 may include a rotor core 1221 and a magnet 1222.

[0062] The rotor core 1221 can be formed from a metal material such as electrical steel sheet, similar to the stator core 1211, and is formed into a generally cylindrical shape. The drive shaft 125, described later, can be pressed into the center of the rotor core 1221.

[0063] Magnets 1222 can be made of permanent magnets and can be inserted and coupled at equal intervals along the circumferential direction of rotor core 1221. When a voltage is applied, rotor 122 rotates through electromagnetic interaction with stator core 1211 and stator coils 1212. Thus, as drive shaft 125 rotates together with rotor 122, the rotational force of electric motor 120 can be transmitted to compression unit 130 via connecting rod 126.

[0064] Reference Figure 1 and Figure 2In this embodiment, the compression section 130 may include a cylinder block 131 and a piston 132. The cylinder block 131 is elastically supported on the housing 110, and the piston 132 is connected to the drive shaft 125 via a connecting rod 126 and moves relative to the cylinder block 131.

[0065] The cylinder block 131 can be disposed on one axial side of the electric unit 120, such as the upper side. The cylinder block 131 can be fastened to the stator 121 by stator fastening bolts (not shown), and can be elastically supported together with the stator 121 of the electric unit 120 on the lower housing 111.

[0066] The cylinder block 131 in this embodiment may include a frame portion 1311, a fixing protrusion 1312 that is coupled to the stator 121 of the electric unit 120, a bearing portion 1313 that supports the drive shaft 125, and a cylinder portion (cylinder) 1315 that forms the compression chamber 130a.

[0067] The frame portion 1311 can be formed into a flat plate shape that extends laterally or into a radial plate shape by thinning a portion of the edge except for the corners.

[0068] The fixing protrusion 1312 may be formed on the edge of the frame portion 1311. For example, the fixing protrusion 1312 may be formed by protruding downward from the edge of the frame portion 1311 toward the electric portion 120.

[0069] The bearing portion 1313 can be formed by extending axially to both sides from the center portion of the frame portion 1311. A bearing hole 1313a that extends through in the axial direction can be formed in the bearing portion 1313 so that the drive shaft 125 can pass through, and a bushing bearing can be inserted and coupled into the inner circumferential surface of the bearing hole 1313a.

[0070] The drive shaft 125 can be axially supported on the upper end of the bearing portion 1313, and the drive shaft 125 can be radially supported on the inner circumferential surface of the bearing portion 1313. Thus, the drive shaft 125 can be supported by the cylinder block 131 in both the axial and radial directions.

[0071] The cylinder section (hereinafter referred to as the cylinder) 1315 may be formed radially eccentrically on one side edge of the frame section 1311. The cylinder 1315 may extend radially through the frame section 1315, and the piston 132 connected to the connecting rod 126 may be inserted into the inner opening end of the cylinder 1315, while the valve assembly 141 constituting the intake and exhaust section 140, as described later, may be installed at the outer opening end of the cylinder 1315.

[0072] The piston 132 has an opening on the side facing the connecting rod 126 (rear side), while the opposite side (front side) facing away from the connecting rod 126 can be flattened into a closed shape. Thus, the connecting rod 126 is inserted into the rear side of the piston 132 and is rotatably engaged. The front side of the piston 132, together with the valve assembly 141 described later, forms a compression chamber 130a inside the cylinder 1315.

[0073] Reference Figure 1 and Figure 2 The inhalation and exhalation section 140 of this embodiment may include a valve assembly 141, a muffler assembly 142, and a clamping member 143.

[0074] Valve assembly 141 may include an intake valve (not shown) and an exhaust valve (not shown). The intake valve connects the compression chamber 130a to the intake connection slot of the connecting silencer 1421c described later. Figure 3 (As shown in the diagram) 1421c2, the discharge valve section can connect the compression chamber 130a to the discharge connection slot of the connection silencer 1421c described later. Figure 3 (As shown in the figure) 1421c3. Thus, the intake valve section and the discharge valve section can be formed to be adjacent to each other on the plane.

[0075] The muffler assembly 142 may include an upper muffler ( Figure 3 (shown in the image) 1421 and lower muffler ( Figure 3 (shown in the diagram) 1422. In other words, the muffler assembly 142 can form the intake space S1 of the intake muffler 142a and the discharge space S2 of the discharge muffler 142b by combining the upper muffler 1421 and the lower muffler 1422. The muffler assembly 142 will be described again later along with the partition member 145.

[0076] The clamping member 143 can be disposed in front of the intake and exhaust section 140, in other words, it can be disposed in front of the muffler assembly 142, and the muffler assembly 142 is fixed to the cylinder block 131 of the compression section 130.

[0077] Specifically, the clamping member 143 may include a clamping body portion 1431, a clamping fixing portion 1432, and a clamping elastic portion 1433. The clamping body portion 1431 is the portion that is in close contact with the front surface of the muffler assembly 142, the clamping fixing portion 1432 is the portion that is fastened to the front end face of the cylinder block 131, and the clamping elastic portion 1433 is the portion that, during clamping and fixing, elastically deforms to tightly press the clamping body portion against the muffler assembly 142. Thus, the clamping member 143 can be securely fastened to the front end face of the cylinder block 131 while being in close contact with the muffler assembly 142.

[0078] The clamping body portion 471 can be formed in the shape of a circular or elliptical thin plate. For example, the clamping body portion 1431 can be formed in a shape that is approximately the same as the connecting muffler 1421c of the upper muffler 1421 constituting the muffler assembly 142. As a result, the clamping body portion 1431 can uniformly transmit force to the entire area of ​​the connecting muffler 1421c, thereby stably supporting the connecting muffler 1421c.

[0079] The clamping and fixing part 1432 can be integrally extended from the clamping body part 1431. In other words, a plurality of clamping and fixing parts 1432 can be provided and formed at predetermined intervals along the outer peripheral surface of the clamping body part 1431. For example, the plurality of clamping and fixing parts 1432 can be equally spaced along the circumferential direction and formed into a generally tripod shape. As a result, the supporting force of the clamping body part 1431 can be evenly distributed along the circumferential direction.

[0080] The clamping elastic portion 1433 can be bent between the two ends of the clamping fixing portion 1432. For example, the clamping elastic portion 1433 can be bent in a semi-circular or wedge-shaped cross-section in the middle of the clamping fixing portion 1432 and located on the side of the muffler 1421c. In this embodiment, an example is shown where the clamping elastic portion 1433 is bent in a semi-circular cross-section. As a result, when the clamping fixing portion 1432 is bolted to the front end face of the cylinder block 131, the clamping elastic portion 1433 opens and extends, thereby pressurizing the muffler 1421c of the muffler assembly 142 toward the front end face of the cylinder block 131. Therefore, when the clamping member 143 fixes the muffler assembly 142 to the cylinder block 131, the clamping elastic part 1433 acts as a buffer, thereby not only suppressing the deformation of the muffler assembly 142 made of plastic material, but also firmly fixing the muffler assembly 142 to the cylinder block 131. The clamping member 143 will be described again later along with the muffler assembly 142.

[0081] Reference Figure 1 and Figure 2 In this embodiment, the vibration damping section 150 may include a front vibration damper 151 and a rear vibration damper 152, which are respectively disposed on both sides of the piston 132 in the reciprocating direction. These front vibration dampers 151 and rear vibration dampers 152 may be made of an elastic material such as rubber.

[0082] The front shock absorber 151 can be disposed on the upper side of the cylinder block 310 and the muffler assembly 142; in other words, it can be disposed on the upper front side of the cylinder block 131. For example, the front shock absorber 151 can be formed in an arc shape and configured to surround the top surface of the cylinder block 131 and the top surface of the muffler assembly 142. Thus, the front shock absorber 151 can effectively suppress or buffer the impact caused by the collision between the compression section 130, the intake and exhaust sections 400, and the housing 110 during compressor operation.

[0083] The rear shock absorber 152 can be disposed on the upper rear side of the cylinder block 310. For example, the rear shock absorber 152 can be formed in the shape of a plate and disposed on both sides of the rear side of the cylinder block 131 and / or between the two sides. Thus, the rear shock absorber 152 can effectively suppress or buffer the impact caused by the collision between the housing 110 and the compression section 130 when the compressor is driven.

[0084] 1251 is the oil flow path, 1255 is the oil supply device, 127 is the counterweight, and 1422a2 is the suction port.

[0085] The operation of the reciprocating compressor in this embodiment, as described above, is as follows.

[0086] That is, if power is applied to the electric motor 120, the rotor 122 rotates. If the rotor 122 rotates, the drive shaft 125 coupled to the rotor 122 rotates, thereby transmitting rotational force to the piston 132 via the connecting rod 126. The piston 132 reciprocates relative to the cylinder 1315 in the front-rear direction using the connecting rod 126.

[0087] For example, if piston 132 retracts in cylinder 1315 (intake stroke), the volume of compression chamber 130a increases. If the volume of compression chamber 130a increases, the refrigerant that fills the intake space S1 of muffler assembly 142 through intake pipe 115 is drawn into compression chamber 130a via the intake valve of valve assembly 141. At this time, intake pipe 115 separates from intake port 1422a2 of muffler assembly 142, so a portion of the oil stored in the internal space 110a of housing 110 can flow into the intake space S1 of muffler assembly 142 along with the refrigerant.

[0088] Conversely, if the piston 132 advances in the cylinder 1315 (ejection stroke), the volume of the compression chamber 130a decreases. If the volume of the compression chamber 130a decreases, the refrigerant filling the compression chamber 130a is compressed and ejected through the ejection valve of the valve assembly 141 to the ejection connection slot connected to the muffler 1421c. The refrigerant is ejected into the ejection space S2 that constitutes the ejection muffler 142b, and then discharged into the refrigeration cycle through the loop pipe 118 and the ejection pipe 116, repeating the above series of processes.

[0089] At this time, since the muffler assembly 142 is formed of plastic material, the heat of compression of the refrigerant discharged into the discharge space of the muffler assembly 142 can be minimized from being transferred to the internal space of the housing 110. Thus, intake loss can be minimized by suppressing the heating of the refrigerant drawn into the internal space of the housing 110.

[0090] In this case, since the muffler assembly 142 is connected to the compression chamber, refrigerant leakage from the compression chamber can only be prevented if the muffler assembly 142 is tightly secured to the cylinder block 131 via the valve assembly 141. However, as mentioned above, since the muffler assembly 142 is made of plastic material, it is secured to the cylinder block 131 by a separate clamping member 143. However, this has the following drawback: machining errors and / or assembly errors of the muffler assembly 142 and the clamping member 143 may cause the plastic muffler assembly 142 to deform or fail to be securely fixed.

[0091] Therefore, in this embodiment, a clamping elastic part 1433 is added to the clamping member 143, so that even if the muffler assembly 142 is made of plastic material, the muffler assembly 142 can be firmly fixed while suppressing the deformation of the muffler assembly 142.

[0092] Figure 3 This is a perspective view showing the clamping member of this embodiment exploded. Figure 4 It is Figure 3 The clamping components are assembled and shown in the front view. Figure 5 It is along Figure 4 A sectional view of the “Ⅸ-Ⅸ” line.

[0093] Reference Figures 3 to 5 As mentioned above, the muffler assembly 142 of this embodiment can be composed of an upper muffler 1421 and a lower muffler 1422 made of plastic material. By assembling the upper muffler 1421 and the lower muffler 1422, an intake muffler 142a can be formed on one side, and an exhaust muffler 142b can be formed on the other side.

[0094] Specifically, the upper muffler 1421 may include an upper intake muffler 1421a, an upper exhaust muffler 1421b, and a connecting muffler 1421c. In other words, the upper intake muffler 1421a and the upper exhaust muffler 1421b may be connected by the connecting muffler 1421c into a single unit to form the upper muffler 1421.

[0095] The upper intake muffler 1421a can be formed in a cap-shaped cross-section with one side (e.g., the lower side) open. Thus, the upper intake muffler 1421a can be combined with the lower intake muffler 1422a described later to form an intake muffler 142a.

[0096] At least one hook groove 1421a1 may be formed at the open end of the upper intake muffler 1421a to engage with the hook protrusion 1422a1 of the lower intake muffler 1422a, which will be described later. Thus, the upper intake muffler 1421a and the lower intake muffler 1422a can be hooked together.

[0097] The upper exhaust muffler 1421b can be formed in a cap-shaped cross-section with one side (e.g., the lower side) open. Thus, the upper exhaust muffler 1421b can be combined with the lower exhaust muffler 1422b described later to form the exhaust muffler 142b.

[0098] An upper intake muffler 1421a may extend from one side of the outer peripheral surface of the muffler 1421c, while an upper exhaust muffler 1421b may extend from the other side of the outer peripheral surface. In other words, the upper intake muffler 1421a and the upper exhaust muffler 1421b may each extend as a single unit on the left and right sides of the muffler 1421c.

[0099] One side of the muffler 1421c, for example, the inner side facing the cylinder block 131, can be formed in an open cap-shaped cross-section. The internal space of the muffler 1421c can be divided by a partition wall protrusion (not shown) into an intake connection groove (not shown) communicating with the upper intake muffler 1421a and an exhaust connection groove (not shown) communicating with the upper exhaust muffler 1421b. Thus, the intake connection groove of the muffler 1421c can communicate with the compression chamber 130a through the intake valve, and the exhaust connection groove of the muffler 1421c can communicate with the compression chamber 130a through the exhaust valve.

[0100] The lower muffler 1422 can be formed in the shape of a cup with an open side (e.g., the upper side). Thus, as mentioned above, the lower intake muffler 1422a can be formed together with the upper intake muffler 1421a to form the intake muffler 142a.

[0101] At least one hook protrusion 1422a1 may be formed at the open end of the lower intake muffler 1422a to engage with the hook groove 1421a1 of the upper intake muffler 1421a. Thus, the lower intake muffler 1422a can be hooked together with the upper intake muffler 1421a.

[0102] Additionally, an intake port 1422a2 may be formed through the outer surface of the lower intake muffler 1422a. The intake port 1422a2 may be formed to face the end of the intake pipe 115 that penetrates the housing 110, and may be indirectly connected through the internal space 110a of the housing 110.

[0103] The lower exhaust muffler 1422b can be formed in the shape of a cup with an open side (e.g., the upper side). Thus, as mentioned above, the lower exhaust muffler 1422b can be formed together with the upper exhaust muffler 1421b to form the exhaust muffler 142b.

[0104] The opening end of the lower discharge muffler 1422b can be sealed by welding or bonding with the opening end of the upper discharge muffler 1421b. This effectively suppresses high-pressure refrigerant leakage into the discharge space S2 of the discharge muffler 142b.

[0105] Reference Figures 3 to 5 As described above, the clamping member 143 of this embodiment may include a clamping body portion 1431, a clamping fixing portion 1432, and a clamping elastic portion 1433. The clamping body portion 1431, the clamping fixing portion 1432, and the clamping elastic portion 1433 can be formed as a single unit. Therefore, the clamping member 143 is easy to manufacture.

[0106] The clamping body 1431 can be formed with a circular cross-sectional shape, an elliptical cross-sectional shape, or a polygonal cross-sectional shape. This embodiment shows an example where the clamping body 1431 is formed with a circular cross-sectional shape. For example, the connecting muffler 1421c of the muffler assembly 142 can be formed with a circular cross-sectional shape, and the clamping body 1431 can be formed with a circular cross-sectional shape to correspond to the front of the connecting muffler 1421c. In other words, the diameter of the clamping body 1431 can be formed to be almost the same as the outer diameter of the connecting muffler 1421c. As a result, the clamping body 1431 applies pressure uniformly to the entire area of ​​the connecting muffler 1421c, thereby not only suppressing deformation of the connecting muffler 1421c but also securing it firmly.

[0107] Furthermore, the clamping body 1431 can be formed flat. In this case, one side of the clamping body 1431, in other words, the rear side of the clamping body 1431 facing the front side of the connected muffler 1421c, can be formed flat together with the front side of the connected muffler 1421c. Thus, when the clamping member 143 is tightened, the clamping body 1431 can contact the entire surface of the connected muffler 1421c and apply pressure evenly to the connected muffler 1421c. As a result, deformation of the connected muffler 1421c can be suppressed more effectively, and it can be fixed more firmly.

[0108] Although not shown, a portion of the clamping body 1431 may protrude toward the connecting muffler 1421c to form an elastic support portion (not shown). This allows the elastic support portion (not shown) to press the connecting muffler 1421c more forcefully, thereby further increasing the support force on the connecting muffler 1421c. However, in this case, the cross-sectional area of ​​the elastic support portion should be formed as wide as possible, or formed along the center and / or edge of the connecting muffler 1421c, to minimize deformation of the connecting muffler 1421c.

[0109] The clamping and fixing portions 1432 can extend from the outer peripheral surface of the clamping body portion 1431, and can be formed in a plurality of equal intervals (three in the figure) along the circumferential direction of the clamping body portion 1431. In other words, the clamping and fixing portions 1432 can be bent from the outer peripheral surface of the clamping body portion 1431 toward the cylinder block 131. For example, when the outer diameter of the clamping body portion 1431 is almost the same as the outer diameter of the connected muffler 1421c, the clamping and fixing portions 1432 can be bent at almost a right angle from the outer peripheral surface of the clamping body portion 1431 toward the cylinder block 131, in other words, toward the rear side which is the suction direction of the piston 132. As a result, the required area is minimized when the clamping and fixing portions 1432 are tightened, which is beneficial for miniaturizing the compressor body C including the cylinder block 131.

[0110] Furthermore, the end of the clamping and fixing part 1432 can be bent radially to form a clamping and fixing end 1432a, and a fastening hole 1432b can be formed in the clamping and fixing end 1432a to correspond to the fastening groove 131a provided in the cylinder block 131. Thus, the clamping and fixing part 1432 can be firmly fastened to the cylinder block 131 by a fastening member 1434 passing through the fastening hole 1432b of the clamping and fixing end 1432a.

[0111] Furthermore, the length of the clamping fixing part 1432 can be less than the thickness of the muffler assembly 142, in other words, the thickness of the muffler 1421c. Therefore, during the assembly of the clamping member 143, with the rear of the clamping body 1431 in contact with the front of the muffler 1421c, the end of the clamping fixing part 1432, i.e., the clamping fixing end 1432a, can separate from the cylinder block 131 by a predetermined deformation interval t. This can be compensated for by the elastic deformation of the clamping elastic part 1433 when the fastening member 1434 is tightened.

[0112] Here, the thickness of the muffler assembly 142 includes not only the thickness of the muffler 1421c, but also the thickness of the valve assembly 141 and other components disposed between the cylinder block 131 and the clamping body 1431. However, for ease of explanation, the total thickness of these components is defined as the thickness of the muffler 1421c.

[0113] As mentioned above, the clamping elastic portion 1433 can be bent at the middle of each clamping fixing portion 1432. For example, the clamping elastic portion 1433 can be bent at a predetermined curvature between the two ends of each clamping fixing portion 1432. In other words, the clamping elastic portion 1433 can be bent toward the side connected to the muffler 1421c, that is, in a direction orthogonal to the reciprocating direction of the piston 132. Thus, by suppressing the increase in height of the clamping member 143 including the clamping elastic portion 1433, it is possible to prevent the clamping member 143 from colliding with the housing 110 when the compressor body C vibrates.

[0114] In this case, the clamping elastic portion 1433 can be formed in the same position and / or with the same specifications in each clamping fixing portion 1432. As a result, when the clamping fixing portion 1432 is tightened, each clamping elastic portion 1433 elastically deforms uniformly, thereby transmitting a uniform force to the clamping body portion 1431.

[0115] In this case, the clamping elastic portion can be formed only once in each clamping fixing portion 1432, or a plurality of clamping elastic portions can be formed at predetermined intervals. In the former case, the clamping member 143 including the clamping elastic portion 1433 can be easily manufactured; in the latter case, the elastic deformation force of the clamping elastic portion 1433 can be increased while the size of each clamping elastic portion 1433 is made smaller. This embodiment shows an example in which one clamping elastic portion 1433 is formed in each clamping fixing portion 1432.

[0116] As described above, when the clamping member 143 is provided with a clamping elastic portion 1433, the muffler assembly 142 can be pressurized by the elastic deformation of the clamping elastic portion 1433 when the clamping member 143 is tightened. Therefore, even if the muffler assembly 142 is made of plastic material, the muffler assembly 142 can be prevented from deforming due to the clamping member 143 when the muffler assembly 142 is tightened, and the muffler assembly 142 can be firmly fixed.

[0117] Figure 6a and Figure 6b This is a schematic diagram illustrating the assembly process of the clamping components. Figure 6a This is a diagram showing the state before tightening. Figure 6b This is a diagram showing the result after tightening.

[0118] First, such as Figure 6aAs shown, before tightening the clamping member 143, the clamping body portion 1431 of the clamping member 143 is in contact with the connecting muffler 1421c of the muffler assembly 142, but the clamping fixing portion 1432 of the clamping member 143 is separated from the cylinder block 131 by a predetermined deformation interval t. In other words, by fully ensuring the allowable tolerances between the connecting muffler 1421c and / or the clamping member 143 of the muffler assembly 142, the clamping member 143 can remain separated from the cylinder block 131 before tightening the clamping member 143, rather than being tightly attached.

[0119] Next, as Figure 6b As shown, when the clamping member 143 is tightened, the clamping fixing portion 1432 of the clamping member 143 is pressed by the fastening member 1434 and pushed towards the cylinder block 131 side and pressed tightly against it. At this time, as mentioned above, the clamping elastic portion 1433 of the clamping member 143 elastically elongates to a length equivalent to the deformation interval t, thereby pulling the clamping body portion 1431 towards the cylinder block 131, in other words, towards the muffler assembly 142 connected to the muffler 1421c side. In this way, the clamping body portion 1431 can be tightly pressed against the connected muffler 1421c, thereby firmly fixing the muffler assembly 142.

[0120] However, in this case, since the clamping elastic part 1433 is bent and thus has elasticity, it partially counteracts the pressure exerted by the clamping body part 1431 on the connected muffler 1421c. Therefore, deformation of the muffler assembly 142 including the connected muffler 1421c can be prevented by suppressing excessive pressure exerted by the clamping body part 1431 on the connected muffler 1421c.

[0121] On the other hand, another embodiment of the clamping member will be described below.

[0122] That is, in the aforementioned embodiments, the clamping elastic portion is formed on the side connected to the muffler; however, depending on the circumstances, the clamping elastic portion may also be formed on the front side connected to the muffler.

[0123] Figure 7 This is an exploded perspective view showing another embodiment of the clamping member. Figure 8 It is Figure 7 The clamping components are assembled and shown in the front view. Figure 9 It is along Figure 8 A cross-sectional view of the "X-X" line.

[0124] Reference Figures 7 to 9The clamping member 143 of this embodiment may include a clamping body portion 1431, a clamping fixing portion 1432, and a clamping elastic portion 1433. For example, the clamping body portion 1431 may be formed in the shape of a flat circular plate, the clamping fixing portion 1432 may be extended into a single unit by being evenly spaced along the circumferential direction on the outer peripheral surface of the clamping body portion 1431, and the clamping elastic portion 1433 may be bent from the clamping fixing portion 1432 to form a semi-circular cross-sectional shape with a predetermined curvature. Thus, when the clamping member 143 is tightened, the clamping body portion 1431 may be pulled toward the muffler assembly 142 side by elastic deformation of the clamping elastic portion 1433, thereby suppressing the deformation of the muffler assembly 142 while firmly fixing the muffler assembly 142 to the cylinder block 131.

[0125] The basic structure and effects of the clamping body part 1431, the clamping fixing part 1432, and the clamping elastic part 1433 are almost similar to those of the aforementioned embodiment, so the description of them is replaced by the aforementioned embodiment.

[0126] However, in this embodiment, the clamping elastic portion 1433 can be formed in the front of the connection to the muffler 1421c. In other words, the clamping elastic portion 1433 can be formed by first bending the clamping body portion 1431 toward the outer casing 110 and then bending it a second time toward the cylinder block 131 by the clamping fixing portion 1432. Thus, the clamping elastic portion 1433 can protrude closer to the outer casing 110 than the clamping body portion 1431.

[0127] In this case, the bending center of the clamping elastic portion 1433 can be formed either outside or within the range of the clamping body portion 1431. In the former case, as in the aforementioned embodiment, the outer diameter of the clamping body portion 1431 is almost similar to the outer diameter of the connecting muffler 1421c, thereby ensuring a wider range of pressure applied to the connecting muffler 1421c. In the latter case, a relatively large curvature of the clamping elastic portion 1433 can be ensured, thereby improving the elastic force. This embodiment illustrates the latter case; in other words, it shows an example where the bending center of the clamping elastic portion 1433 is formed within the range of the clamping body portion 1431.

[0128] As described above, with the clamping elastic portion 1433 formed on the front side of the muffler 1421c, the curvature of the clamping elastic portion 1433 can be increased without expanding the size of the muffler assembly 142. In other words, the space between the muffler 1421b and the muffler 1421c and / or the outer diameter of the cylinder block 131 protruding from the upper part of the clamping fixing end 1432a is increased. Therefore, the muffler assembly 142 can be securely fixed while effectively suppressing deformation by increasing the elastic deformation force of the clamping elastic portion 1433.

[0129] Although not shown, the clamping elastic portion 1433 may also be formed on the side and front of the muffler 1421c. In other words, the clamping elastic portion 1433 may also be combined. Figure 3 Implementation examples and Figure 7 This is an embodiment formed in which the elastic deformation force of the clamping elastic part 1433 is further increased, thereby more effectively suppressing the deformation of the muffler assembly 142 while more firmly fixing the muffler assembly 142.

[0130] On the other hand, another embodiment of the clamping member will be described below.

[0131] That is, in the aforementioned embodiments, when the intake muffler and exhaust muffler of the muffler assembly are formed as a single unit, a clamping elastic portion is provided in the clamping member. However, depending on the circumstances, when the intake muffler and exhaust muffler constituting the muffler assembly are separate, a clamping elastic portion may also be provided in the clamping member. Hereinafter, the intake muffler will be defined as the muffler body for explanation.

[0132] Figure 10 This is an exploded perspective view showing another embodiment of the clamping member. Figure 11 It is Figure 10 The clamping components are assembled and shown in the front view. Figure 12 yes Figure 11 Top view.

[0133] Reference Figures 10 to 12 The muffler assembly 142 of this embodiment may include a muffler body 142a and a cylinder head 1435. The muffler body 142a may be in close contact with the front of the valve assembly 141, and the cylinder head 1435 may accommodate the muffler body 142a and be fixed to the cylinder block 131 together with the valve assembly 141. Thus, the muffler body 142a can be fixed to the cylinder block 131 by the cylinder head 1435.

[0134] As mentioned above, the muffler body 142a is defined as an intake muffler, and thus an intake space S1 communicating with the internal space 110a of the housing 110 can be formed. Therefore, the refrigerant drawn into the internal space 110a of the housing 110 can be drawn into the compression chamber 130a through the intake space S1 of the muffler body 142a constituting the intake muffler.

[0135] The cylinder head 1435 can be formed in the shape of a generally quadrilateral plate. As a result, fastening holes 1435e can be formed at each corner of the cylinder head 1435, so that it can be bolted to the cylinder block 131.

[0136] Additionally, a discharge passage groove 1435b, described later, can be formed on one side of the cylinder head 1435, and can be formed of a heat-insulating material such as plastic. Therefore, suction losses can be reduced by minimizing the transfer of the heat of compression of the refrigerant discharged into the discharge passage groove 1435b to the internal space 110a of the outer casing 110.

[0137] Specifically, a muffler receiving groove 1435a is formed on one side of the cylinder head 1435, that is, on the rear side facing the cylinder block 131, to accommodate the muffler body 142a. A discharge passage groove 1435b is formed around the muffler receiving groove 1435a to connect the compression chamber 130a and the discharge muffler 142b. Thus, the refrigerant compressed in the compression chamber 130a can be discharged through the discharge passage groove 1435b of the cylinder head 1435 to the discharge muffler 142b.

[0138] On the other side of the cylinder cover 1435, in other words, at the center of the front side facing the inner circumferential surface of the outer casing 110, a clamping support surface 1435c supported by the clamping body portion 1431 described later can be formed. The clamping support surface 1435c can be formed flat together with the rear side of the clamping body portion 1431 facing it.

[0139] Furthermore, around the periphery of the clamping support surface 1435c, such as at each corner of the cylinder head 1435, a plurality of clamping fixing surfaces 1435d can be formed. The end of the clamping fixing part 1432 is tightly abutted against the plurality of clamping fixing surfaces 1435d and fastened to the cylinder block 131. A fastening hole 1435e can be formed on the clamping fixing surface 1435d to correspond to the fastening groove 131a of the aforementioned cylinder block 131. Thus, the clamping member 143 can be fixed to the cylinder block 131 by a fastening member 1434 that passes through the fastening hole 1435e and is fastened to the fastening groove 131a.

[0140] Furthermore, the clamping support surface 1435c can be formed elongated in the axial direction, and the clamping fixing surface 1435d can be formed on both sides of the clamping support surface 1435c in the length direction, which are more recessed towards the cylinder block 131 than the clamping support surface 1435c. As a result, the clamping fixing surface 1435d is formed to be lower than the clamping support surface 1435c, thereby creating a height difference between the clamping support surface 1435c and the clamping fixing surface 1435d.

[0141] The clamping member 143 of this embodiment may include a clamping body portion 1431, a clamping fixing portion 1432, and a clamping elastic portion 1433. The clamping body portion 1431 is the part that supports the cylinder cover 1435, the clamping fixing portion 1432 is the part that fixes the cylinder cover 1435 to the cylinder block 131, and the clamping elastic portion 1433 is the part that applies pressure to the cylinder cover 1435 by elastic deformation when the clamping member 143 is tightened. The basic structure and effects of these clamping body portions 1431, clamping fixing portions 1432, and clamping elastic portions 1433 are similar to those of the aforementioned embodiment, therefore, the description therein is replaced by the description of the aforementioned embodiment.

[0142] However, in this embodiment, the cylinder cover 1435, which is in close contact with the clamping member 143, is formed in the shape of a quadrilateral plate, so that the clamping member 143 can also be formed to correspond to the shape of the cylinder cover 1435. For example, the clamping body portion 1431 can be formed elongated along the axial direction to correspond to the clamping support surface 1435c. As a result, the clamping body portion 1431 uniformly transmits the applied pressure to the entire clamping support surface 1435c, thereby suppressing the deformation of the cylinder cover 1435 while stably fixing the cylinder cover 1435.

[0143] The clamping and fixing portions 1432 can extend laterally to both ends of the clamping body portion 1431 towards the four corners of the cylinder cover 1435, in other words, the clamping and fixing surfaces 1435d can be bent laterally to both sides. In this case, the clamping and fixing portions 1432 can extend from both ends of the clamping body portion 1431 towards both sides (e.g., circumferential direction) orthogonal to the length direction (e.g., axial direction) of the clamping body portion 1431. In other words, the clamping and fixing portions 1432 can be formed by extending approximately the same length in both circumferential directions based on the clamping body portion 1431. As a result, the fixing force transmitted from the clamping and fixing portions 1432 to the clamping body portion 1431 is evenly distributed, so that the clamping body portion 1431 can uniformly support the cylinder block 131.

[0144] Although not shown, the clamping and fixing portions 1432 can extend to different lengths along the circumferential direction. For example, the clamping and fixing portion 1432 on the axially upward side (upper clamping and fixing portion) may be longer than the clamping and fixing portion 1432 on the axially downward side (lower clamping and fixing portion). In this case, the fixing force of the lower clamping and fixing portion 1432 increases, thereby enabling stable fixing of the muffler body 142a extending downward toward the cylinder block 131.

[0145] The clamping elastic portion 1433 can be formed between the two ends of the clamping fixing portion 1432, in other words, between the clamping support surface 1435c and the clamping fixing surface 1435d of the cylinder cover 1435. Thus, the clamping elastic portion 1433 can be formed on the side of the cylinder cover 1435 and suppress the collision between the clamping member 143 and the outer casing 110 when the compressor body C vibrates.

[0146] As in the aforementioned embodiments, the clamping elastic portion 1433 can be formed as a semi-circular cross-section shape with a predetermined curvature or bent into a wedge-shaped cross-section shape. Thus, even if machining errors and / or assembly errors occur between the cylinder head 1435 and / or the clamping member 143, the cylinder head 1435 can be stably fixed.

[0147] In addition, even if the cylinder head 1435 is made of a material with low hardness such as plastic, it can prevent the cylinder head 1435 from deforming and being damaged during the process of fastening it to the cylinder block 131.

Claims

1. A reciprocating compressor, wherein, include: shell; A drive motor is located within the interior space of the housing; A drive shaft, which is connected to the rotor of the drive motor; The piston, in conjunction with the drive shaft, performs reciprocating motion; A cylinder block having a cylinder such that the piston can be reciprocally inserted into the cylinder, and the cylinder together with the piston forming a compression chamber; The muffler assembly is combined with the cylinder block and communicates with the compression chamber; as well as The clamping component secures the muffler assembly to the cylinder block; The clamping member is provided with a clamping elastic part. When the clamping member is tightened, the clamping elastic part causes the muffler assembly to press against the cylinder block through elastic deformation.

2. The reciprocating compressor according to claim 1, wherein, The clamping component includes: The clamping body supports the muffler assembly; and A plurality of clamping and fixing parts extend from the clamping body part and are fixed to the cylinder block; The clamping elastic portion is formed by bending at the clamping fixing portion.

3. The reciprocating compressor according to claim 2, wherein, The clamping elastic portion is formed by bending on the side of the muffler assembly.

4. The reciprocating compressor according to claim 3, wherein, The clamping and fixing part extends from the clamping body part toward the cylinder block; The clamping elastic portion is formed by bending between the two ends of the clamping fixing portion.

5. The reciprocating compressor according to claim 2, wherein, The clamping elastic portion is formed by bending at the front of the muffler assembly.

6. The reciprocating compressor according to claim 5, wherein, The clamping elastic part bends from the clamping body part toward the outer shell and then bends toward the cylinder block, thereby forming a bend.

7. The reciprocating compressor according to any one of claims 1 to 6, wherein, The muffler assembly includes: The upper muffler, the upper intake muffler, and the upper exhaust muffler are connected by a single unit; and The lower muffler has a lower intake muffler that forms an intake space by combining with the upper intake muffler and a lower exhaust muffler that forms an exhaust space by combining with the upper exhaust muffler. The clamping member supports the connecting muffler and is engaged with the cylinder block.

8. The reciprocating compressor according to claim 7, wherein, One side of the clamping member and the side of the muffler connected thereto, which faces the clamping member, are formed flat and are in surface contact with each other.

9. The reciprocating compressor according to claim 1, wherein, The clamping component includes: The clamping body supports the muffler assembly; and A plurality of clamping and fixing parts extend from the clamping body part and are fixed together with the muffler assembly to the cylinder block; The clamping elastic portion is formed by bending between the two ends of the clamping fixing portion.

10. The reciprocating compressor according to claim 9, wherein, The muffler assembly includes: The muffler body is provided with an intake space or an exhaust space; and Cylinder cover, which accommodates the muffler body and is fixed to the cylinder block; The clamping member pressurizes the cylinder cover and engages it together with the cylinder cover in the cylinder block.

11. The reciprocating compressor according to claim 10, wherein, A clamping support surface, supported by the clamping body, is formed on one side of the cylinder cover facing the clamping member. A plurality of clamping and fixing surfaces are formed around the periphery of the clamping support surface, and the end of the clamping and fixing part is closely attached to the plurality of clamping and fixing surfaces and fastened to the cylinder block; The clamping fixing surface is formed to be recessed further toward the cylinder block than the clamping support surface.

12. The reciprocating compressor according to claim 11, wherein, The clamping elastic part is formed between the clamping support surface and the clamping fixing surface of the cylinder cover.

13. The reciprocating compressor according to claim 11, wherein, The clamping support surface and the side of the clamping body that faces the clamping support surface are formed flatly so that they are in surface contact with each other.

14. The reciprocating compressor according to any one of claims 9 to 13, wherein, The clamping and fixing parts extend from both ends of the clamping body part in two directions orthogonal to the length direction of the clamping body part.

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