KR100834104B1 - Hermatic compressor - Google Patents

Abstract

The present invention relates to a hermetic compressor. The present invention relates to a method of manufacturing an airtight container which comprises a lower container (30) constituting a part of a closed container forming an enclosed space therein, a frame (40) provided inside the closed container and supporting various component parts, A suction muffler 60 installed on the upper portion of the lower casing 30 to transmit the noise generated by the suction muffler 60 to the compression chamber, And the suction muffler 60 is formed such that the position of the suction port 62 thereof is located on both sides of the front end of the frame 40 And is selectively provided at both ends thereof corresponding to the pipes 34, According to the present invention, the functions of the pipes 34 and 36 provided in the lower vessel 30 can be used differently according to need, and the assembling workability of the compressor is improved.

Sealed compressor, pipe, connection, body, installation direction

Description

[0001] Hermetic compressor [0002]

1 is an exploded perspective view showing a configuration of a hermetic compressor according to a related art.

2 is a plan view schematically showing a configuration of a preferred embodiment of the hermetic compressor according to the present invention.

3 is a front view showing a configuration of a suction muffler constituting an embodiment of the present invention.

4 is a plan view schematically showing the configuration of another embodiment of the present invention.

5 is a front view showing a configuration of a suction muffler used in the embodiment shown in Fig.

Description of the Related Art [0002]

30: Lower container 32: Mounting plate

33: Terminal mounting portion 33 ': Inner connector

34: first pipe 36: second pipe

38: third pipe 40: frame

42: stator 43: rotor

45: crank shaft 46: eccentric pin

48: Connecting rod 50: Piston

52: cylinder 54: valve assembly                 

56: Head cover assembly 58: Head cover

60: Suction silencer 62: Suction port

64: Discharge port 65: Discharge silencer

67: Loop pipe

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor, and more particularly, to a hermetic compressor capable of selecting a pipe for delivering a working fluid to the inside and the outside of the compressor in accordance with a design condition of a set in which the hermetic compressor is used.

A hermetic compressor compresses a working fluid in a heat exchange cycle, and is one of components of a heat exchange cycle such as a refrigerator or an air conditioner. Thus, the hermetic compressor is connected to the pipe for the delivery of the working fluid to the other components constituting the heat exchange cycle.

1 is an exploded perspective view of a hermetic compressor according to the prior art. According to the drawings, the outer container 1 and the upper container 3 form an outer appearance of the compressor. The lower container (1) and the upper container (3) are coupled to each other to form a closed space therein. Components constituting the compressor are installed in the closed space.

A mounting plate (5) is provided on the lower surface of the lower container (1). The mounting plate 5 is intended to be fixed at a position where the compressor is installed. A terminal mounting part (6) is provided at one end in the longitudinal direction of the lower container (1).                         

Next, the lower container 1 is provided with a pipe for flowing a working fluid to the inside and the outside of the closed space. That is, a suction pipe (7) for transmitting the working fluid to the inside of the closed space is installed through the lower container (1). The suction pipe (7) penetrates the lower container (1) at the one front end side of the longitudinal direction of the lower container (1). A discharge pipe 8 is provided so as to pass through the lower container 1 opposite to the side where the suction pipe 7 is installed, that is, opposite to the terminal mounting portion 6. [

On the other hand, a process pipe 9 is provided through the lower container 1 so as to be symmetrical with respect to the short axis of the lower container 1 with respect to the suction pipe 7. The process pipe 9 is a passage for injecting oil or working fluid into the closed space when necessary.

A frame (10) is installed in the closed space. A stator 11 is provided at a lower portion of the frame 10 and is supported by an elastic member on the bottom surface of the lower container 1. Inside the stator 11, there is provided a rotor 12 which is rotated by electromagnetic interaction with the stator 11.

The rotor 12 is press-fitted into the crankshaft 13 and rotates integrally with the crankshaft 13. The crankshaft 13 is rotatably supported by passing through the frame 10 up and down. The crankshaft 13 is connected to a piston (not shown) which reciprocates linearly in the compression chamber inside the cylinder block 15 via the connecting rod 14. [ Therefore, the rotational force of the rotor 12 is transmitted to the piston through the connecting rod 14.

A valve assembly is installed at the end of the compression chamber of the cylinder block 15 together with the head cover assembly 16. The valve assembly controls the flow of working fluid to the inside and outside of the compression chamber. A suction muffler (17) with the head cover assembly (16) is assembled to the suction valve side of the valve assembly. The suction muffler 17 reduces the noise of the working fluid sucked from outside through the suction pipe 7 and transfers the noise to the compression chamber through the valve assembly. The suction muffler 17 is formed with a suction unit 17 'so as to face the inner end of the hermetic container 1 of the suction pipe 7.

Next, the working fluid compressed and discharged from the compression chamber is transmitted to the discharge muffler 18 through the discharge chamber inside the head cover assembly 16. [ The discharge muffler 18 is installed on one side of the frame 10 and serves to reduce pulsation and noise of the working fluid. The discharge silencer (18) and the discharge pipe (9) are connected by a loop pipe (19). The loop pipe 19 serves to deliver the working fluid from the discharge muffler 18 to the discharge pipe 8. [ The loop pipe 19 is formed by bending the loop pipe 19 several times to minimize pulsation of the working fluid.

In the prior art, the frame 10 is formed so that the line connecting the crankshaft 13 and the head cover assembly 16, that is, the direction in which the piston reciprocates linearly, Respectively.

However, the above-described conventional techniques have the following problems.

That is, in the prior art, since the suction muffler 17 of the suction muffler 17 must be positioned corresponding to the suction pipe 7, the suction muffler 17 is positioned toward the terminal mounting portion 6, . In order to use the pipe as the suction pipe as the process pipe 9, there is a problem that the frame 10 must be rotated by 180 degrees to newly design parts constituting the compressor.

Therefore, in the prior art, the suction pipe 7, the discharge pipe 8, and the process pipe 9, which are installed through the lower container 1, are required to perform only predetermined functions. As a result, when the hermetic compressor is mounted on a set such as a refrigerator or an air conditioner, the functions of the pipes 7, 8, and 9 can not be arbitrarily changed and installed in the set according to the functions of the pipes 7, It is inconvenient to design a pipe for a heat exchange cycle.

Since the terminal mounting portion 6 is provided at one end portion in the longitudinal direction of the lower container 1, a terminal for performing connection for power supply to the stator 11 and the rotor 12 is connected to the terminal mounting portion 6 between the inner surface of the lower container 1 and the frame 10. However, since the interval between the inner surface of the lower container 1 and the frame 10 on which the suction silencer 17 is located is relatively narrow, the operation of connecting the terminals is troublesome.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a hermetic compressor which can easily change the function of a pipe provided in a hermetic container.

It is another object of the present invention to make it easier to assemble parts in a hermetic compressor.

According to an aspect of the present invention, there is provided an airtight container comprising: a closed container for forming a closed space therein; a frame provided inside the closed container for supporting various component parts; And a suction muffler installed to pass through the hermetically sealed container and provided at one side of the front end of the frame on the side where the suction muffler is provided, Wherein the suction muffler is selectively provided at both ends thereof in correspondence with the pipe provided at a portion corresponding to both ends of the front end of the frame.

Among the at least three pipes, those provided at both sides of the frame front end are selectively used as a suction pipe and a processor pipe, and one of the remaining pipes is used as a discharge pipe.

According to another aspect of the present invention, there is provided an air conditioner comprising: a hermetically sealed container for forming a hermetically sealed space therein; a frame provided inside the hermetically sealed container for supporting the motor portion and the compression mechanism portion; A suction muffler installed on the side of the frame so as to supply the muffler to the muffler and selectively provided on both sides of the muffler, and a suction muffler installed on both sides of the muffler so as to correspond to both sides of the frame on which the muffler is installed, A suction pipe and a process pipe selectively performing a function for injecting oil or the like and a discharge pipe installed to pass through the hermetically sealed container and delivering the working fluid compressed by the compression mechanism to the outside of the hermetically sealed container do.

The terminal mounting portion for electrical connection between the inside and the outside of the hermetically sealed container is provided outside the hermetically sealed container corresponding to one of the both sides of the frame when the portion where the suction muffler is installed is front.

The discharge pipe is installed through a portion of the sealed container on the opposite side where the terminal mounting portion is provided.

According to the present invention having such a construction, the function of the pipe installed through the hermetically sealed container of the compressor can be selectively used according to the design conditions of the set in which the compressor is used, There is also an advantage that the connection for supplying power to the motor part inside the compressor is easier.

Hereinafter, a hermetic compressor according to the present invention will be described in detail with reference to the preferred embodiments shown in the accompanying drawings.

FIG. 2 is a schematic plan view of a preferred embodiment of the hermetic compressor according to the present invention, and FIG. 3 is a front view of the suction muffler constituting a preferred embodiment of the hermetic compressor according to the present invention.

As shown in these drawings, the outer appearance of the compressor is formed by a closed container composed of a lower container 30 and an upper container (not shown). Various components constituting the compressor are installed inside the closed container.

A mounting plate 32 is provided under the lower container 30. The mounting plate 32 is intended to be fixed at a position where the compressor is installed. A terminal mounting portion 33 is provided on one side of the lower container 30 (left outer surface with reference to FIG. 2). The terminal mounting portion 33 is a portion provided with a structure for supplying power to the inside of the compressor. An inner connector 33 'is provided on the inner surface of the lower container 30 corresponding to the terminal mounting portion 33. The inner connector 33 'is connected to a cable for electrical connection with the motor unit, which will be described below. Although the terminal mounting portion 33 is provided on the outer surface of the left side surface of the lower container 30 in the illustrated embodiment, it may be provided on the outer surface of the right side surface.

First to third pipes (34, 36, 38) are provided for communicating the inside and the outside of the hermetically sealed container through the lower container (30). Here, the first pipe 34 may be formed by passing through a corresponding portion between the front surface and the side surface of the lower container 30 when the portion where the terminal mounting portion 33 is provided is referred to as a side surface of the lower container 30 do. The second pipe 34 is installed to pass through a portion between the opposite side of the terminal mounting portion 33 and the front surface. In the present embodiment, the first pipe 34 and the second pipe 36 function as a suction pipe and a processor pipe, respectively.

Meanwhile, the third pipe 38 is installed through the opposite side of the lower container 30 where the terminal mounting portion 33 is provided. The third pipe 38 functions as a discharge pipe in the present embodiment.

Next, a frame 40 is installed in the lower container 30. The frame (40) is provided with various components constituting the compressor. A motor section is provided below the frame 40. That is, the stator 42 is fixed to the frame 40, and the rotor 43 passes through the inside of the stator 42 vertically. The rotor 43 is rotated by an electromagnetic interaction with the stator 42.

Next, a configuration for compressing the working fluid by the driving force of the motor unit will be described. First, a crank shaft 45 is installed through the frame 40 so that the center of rotation of the rotor 43 is aligned with the center of rotation. A portion of the crankshaft 45 extending to the lower portion of the frame 40 is press-fitted into the center of the rotor 43 and the crankshaft 45 and the rotor 43 are integrally rotated.

One end of the connecting rod 48 is connected to the eccentric pin 46 provided at the upper end of the crankshaft 45 and eccentrically disposed at the center of rotation of the crankshaft 45. The other end of the connecting rod 48 is connected to the piston 50 to convert the rotational force of the crank shaft 45 into a linear reciprocating motion of the piston 50.

The piston (50) is provided in a compression chamber formed through a cylinder (52) provided on the frame (40). The piston (50) linearly reciprocates within the compression chamber and compresses the working fluid.

A valve assembly 54 is provided at the tip of the cylinder 52. The valve assembly 54 serves to control the flow of working fluid into and out of the compression chamber. A head cover assembly 56 is provided with the valve assembly 54. A structure in which a working fluid passing through the valve assembly flows is provided inside the head cover 58 constituting the head cover assembly 56 do.

On the other hand, the head cover assembly 56 is provided with a suction muffler 60. The suction muffler 60 is installed inside the lower vessel 30 between the first pipe 34 and the second pipe 36. The cylinder 52 of the frame 40 must be provided at a position corresponding to the position between the first pipe 34 and the second pipe 36 in order to form the installation position of the suction muffler 60. [

As shown in FIG. 3, a suction port 62 is provided at one side of the suction muffler 60 so as to protrude outward. The suction muffler 60 is provided at its upper end with a discharge port 63 coupled to the head cover assembly 56. The suction port 62 is provided at a position corresponding to the first pipe 34 serving as a suction pipe so that the working fluid that has entered the inside of the closed space through the first pipe 34 flows into the inside of the suction muffler 60 . The discharge port (63) allows noise in the interior of the suction muffler (60) to be transmitted to the compression chamber through the valve assembly (54).

Next, the head cover assembly 54 is provided with a discharge muffler 65. The discharge muffler 65 serves to remove noise and pulsation of the working fluid compressed in the compression chamber. The discharge muffler 65 communicates with the third pipe 38 serving as a discharge pipe through the loop pipe 67. The loop pipe 67 is folded many times and has a predetermined length to reduce the pulsation and noise of the discharged working fluid.

4 and 5 show another embodiment of the present invention. In this embodiment, a suction muffler 60 'slightly different in construction from the suction muffler 60 of the embodiment shown in Fig. 3 is used. That is, as shown in FIG. 5, the suction muffler 60 'is formed with a suction port 62 on the right side of the drawing. Therefore, when the suction muffler 60 'is installed on the side of the frame 40, the suction port 62 is installed facing the end of the second pipe 36.

In this case, the second pipe 36 serves as a suction pipe, and the first pipe 34 serves as a process pipe. In the present embodiment, the suction muffler 60 is installed in the same manner as the above-described embodiment. However, since the position of the suction hole 62 is changed, the first pipe 34 and the second pipe (36).

The remaining configuration in this embodiment is the same as that in the embodiment described above, so that the description is omitted for the sake of convenience.

Hereinafter, the operation of the hermetic compressor according to the present invention will be described in detail.

2 and 3, the working fluid is sucked from the outside through the first pipe 34, and is transmitted to the suction silencer 60 through the suction port 62. As shown in FIG. Then, the noise is made noise in the suction muffler 60 and the compressed air enters the compression chamber through the valve assembly 54.

In the compression chamber, the compressed air is compressed by the piston 50, and is discharged into the head cover assembly 56, and then transmitted to the discharge muffler 65 to remove pulsation and noise. The working fluid from the discharge muffler 65 is passed through the loop pipe 67 to the third pipe 38 serving as a discharge pipe and is delivered to the outside.

In order to reciprocate the piston 50 in the compression chamber of the cylinder 52, the rotor 43 of the motor unit is rotated by an electromagnetic interaction with the stator 42, The crankshaft 45 is rotated. The rotational force of the crankshaft 45 is transmitted to the piston 50 through the connecting rod 48. [

4 and 5, but only the working fluid sucked through the second pipe 36 is sucked into the suction muffler 60 'through the suction port 62' Lt; / RTI > In the present embodiment, the first pipe 34 serves as a processor pipe.

Thus, in the present invention, by replacing only the suction silencers 60 and 60 ', the functions of the first and second pipes 34 and 36 connecting the compressor and other components can be selected according to the user's need. That is, the first pipe 34 may be used as a suction pipe, the second pipe 36 may be used as a processor pipe, or the first pipe 34 may be used as a processor pipe and the second pipe 36 may be used as a suction pipe .

Therefore, if only the suction silencers 60 and 60 'are replaced without changing the design of various components constituting the compressor, the function of the first and second pipes 34 and 36 provided through the lower vessel 30 of the compressor So that it is possible to freely design the arrangement of a heat exchange cycle such as a refrigerator or an air conditioner, in which a compressor is used.                     

In the meantime, in order to supply power for driving the motor unit, an inner connector 33 'is provided on the inner surface of the lower container 30 corresponding to the terminal mounting portion 33. Generally, in the frame 40, a large number of parts are provided between the inner surface of the cylinder 52 and the inner surface of the lower container 30, so that the space therebetween is relatively narrower than the other parts.

However, in the present invention, since the inner connector 33 'is provided at the position where the inner surface of the cylinder 52 is rotated by 90 ° from the inner surface of the lower container 30, Can be more easily connected.

The third pipe 38 is provided on the opposite side of the inner connector 33 'so that the connecting operation between the third pipe 38 and the roof pipe 67 can be performed relatively easily. .

In the hermetic compressor according to the present invention as described above in detail, the following effects can be expected.

First, in the present invention, the function of the pipe provided in the lower container can be selectively used by replacing the suction muffler. Therefore, it is possible to obtain an effect that the design of the pipe for connection with the compressor in the set in which the compressor is used is relatively free.

In addition, in the present invention, the configuration for supplying power to the inside of the compressor and the interval between the frame sides can be made relatively large, so that the connection work for power supply can be simplified.

In the present invention, since the interval between the outer container and the frame side at the portion where the discharge pipe connected to the loop pipe is provided is also relatively wide, the connecting operation between the loop pipe and the discharge pipe is also facilitated.

Claims (5)

A hermetically sealed container for forming a hermetically sealed space therein, A frame provided inside the closed container for supporting various component parts, A muffler installed in the frame for muffling externally sucked working fluid to deliver the muffler to a compression chamber, At least three or more pipes each penetrating the closed container and each provided at a portion corresponding to both sides of a front end of the frame on which the suction muffler is provided, Wherein the suction silencer is selectively provided at both ends of the suction muffler in correspondence with the pipe provided at a portion corresponding to both sides of the front end of the frame. The hermetic compressor as claimed in claim 1, wherein at least one of the at least three pipes is provided at a portion corresponding to both ends of the frame, and is selectively used as a suction pipe and a processor pipe, and one of the remaining pipes is used as a discharge pipe. A hermetically sealed container for forming a hermetically sealed space therein, A frame that is provided inside the closed container and supports the motor unit and the compression mechanism unit, A suction silencer provided on the frame side to supply and supply the working fluid to the compression mechanism of the frame, the suction muffler being selectively provided on both sides of the suction muffler; A suction pipe and a process pipe installed through the closed container corresponding to both sides of the frame on which the suction muffler is installed and selectively used for suction of a working fluid or injection of oil, And a discharge pipe installed to pass through the hermetic container and deliver the working fluid compressed by the compression mechanism to the outside of the hermetic container. The terminal mounting structure according to claim 2 or 3, wherein a terminal mounting portion for electrical connection between the inside and the outside of the hermetically sealed container is formed in a shape such that, when a portion of the frame, on which the suction muffler is installed, And the compressor is provided outside the compressor. The hermetic compressor according to claim 4, wherein the discharge pipe is installed through a portion of the hermetic container on the opposite side where the terminal mounting portion is provided.

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