JPH11182463A - Scroll compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scroll compressor in which pulsation of a refrigerant gas discharged to a sealed vessel from the discharge port of a scroll compression element can be suppressed or eliminated in the sealed vessel. SOLUTION: A scroll compressor is composed of a motor-driven element 6 installed in a sealed vessel, a scroll compression element 7 driven by this motor-driven element 6, and a partitioning plate 19 to partition the inside of the vessel 5 into a high pressure chamber 20 and a low pressure chamber 21, in which a refrigerant gas compressed by the scroll compression element 7 is discharged to the high pressure chamber 20 from a discharge port 22 furnished in the element 7 and then exhausted to outside the vessel 5, wherein the partitioning plate 19 is embodied in a muffler structure equipped with silencing function.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scroll compressor having excellent noise reduction performance, for example, mounted on an air conditioner or a refrigerator.

[0002]

2. Description of the Related Art Conventionally, there are provided an electric element provided in a closed container comprising a cylindrical body and end caps for closing both ends of the body, and a scroll compression element driven by the electric element. A scroll compressor in which the refrigerant gas compressed by the scroll compression element is discharged from the discharge port provided in the scroll compression element into the high-pressure section, and then discharged outside the closed vessel, In a system in which the fixed scroll is press-fitted or shrink-fitted in a closed container to separate the high-pressure portion and the low-pressure portion, the fixed scroll teeth are likely to be distorted because the load of the discharged gas is received by the fixed scroll. In addition, there is a problem that it is necessary to make the end plate of the fixed scroll receiving the discharge gas thick.

[0003] Further, a partition plate is mounted in the closed container by press fitting, welding or shrink fitting to partition the inside of the closed container into a high pressure portion and a low pressure portion, and the discharge port is provided in a central portion of the partition plate. There is a scroll-type compressor that is inserted into the through hole in close contact with a sealing material, but the refrigerant gas discharged from the discharge port to the high-pressure part in the closed container has pulsation, and if the pulsation is large, the piping is There is a problem that the piping vibrates or the pipe is broken in some cases. In order to prevent the pulsation of the refrigerant gas, there is a method of attaching a discharge muffler having a silencing function to the outside of the scroll compressor, but this increases the cost.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a scroll type compressor having a partition plate which is mounted in a closed container by press fitting, welding or shrink fitting to partition the inside of the closed container into a high pressure portion and a low pressure portion. It is another object of the present invention to provide a scroll compressor in which pulsation of refrigerant gas discharged from a discharge port into a closed container can be suppressed or prevented in the closed container.

[0005]

In order to solve the above-mentioned problems, a first aspect of the present invention is an electric element provided in a closed container, a scroll compression element driven by the electric element, and the closed container. A partition plate for partitioning the inside into a high-pressure part and a low-pressure part, and after discharging the refrigerant gas compressed by the scroll compression element from the discharge port provided in the scroll compression element into the high-pressure part, outside the closed container. A scroll type compressor for discharging, wherein the partition plate has a muffler structure having a muffling function. The muffler structure itself having a sound deadening function is not particularly limited as long as it has a muffler structure that can suppress and prevent pulsation of the refrigerant gas discharged from the discharge port in the space of the high-pressure portion in the closed container. By using a partition plate with a muffler structure with a silencing function, the pulsation of the refrigerant gas discharged from the discharge port into the sealed container can be suppressed and prevented in the sealed container. It is not necessary to attach a discharge muffler provided with the above, and the cost is reduced.

According to a second aspect of the present invention, in the scroll type compressor according to the first aspect, the partition plate is provided with a convex portion surrounding the discharge port on a high pressure portion side. . Although the partition plate provided with the convex portion surrounding the discharge port has a simple structure, the pulsation of the refrigerant gas discharged from the discharge port can be easily suppressed and prevented in the closed vessel, so that the cost is further reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings shown in FIGS.
FIG. 1 is an explanatory diagram showing a main part of a scroll compressor according to the present invention. As shown in FIG. 1, a scroll compressor 1 of the present invention used in a refrigeration cycle of an air conditioner or the like includes a cylindrical body 2, an end cap 3 for closing both ends of the body 2, and a bottom 4. Inside the closed container 5, an electric element 6 and a scroll compression element 7 are incorporated.
The electric element 6 includes a stator 8 fixed to the inner wall surface side of the closed container 5 and a rotor 9 rotatably supported inside the stator 8, and a rotating shaft 10 passes through the rotor 9. Is joined to.

[0008] One end of the rotating shaft 10 is formed as a pin (crank portion) 11 whose center is provided eccentrically with respect to the axis of the rotating shaft 10.
The orbiting scroll 12 is connected to. The orbiting scroll 12 is formed in a disk shape (end plate), and a spiral wrap (teeth) 1 is formed on the other side surface of the orbiting scroll 12.
3 are integrally formed. Reference numeral 14 denotes a support frame that supports the upper part of the rotating shaft 10. A fixed scroll 15 is connected to the support frame 14. A spiral wrap (teeth) 16 is formed on the fixed scroll 15 at a portion facing the orbiting scroll 12, and a plurality of compression chambers 17 are formed between the fixed scroll 15 and the wrap 13. These compression chambers 17 suck the refrigerant gas at the outer peripheral portion via the suction pipe 18 and gradually move to the center to reduce the volume and compress the refrigerant gas.

Reference numeral 19 denotes a partition plate for partitioning the interior of the closed vessel 5 into a high-pressure section 20 and a low-pressure section 21. The partition plate 19 is interposed between the body 2 and the end cap 3 and integrally welded. . A discharge port 22 provided at the center of the other side surface of the fixed scroll 15 is inserted in close contact with a through hole 23 provided through the center of the partition plate 19 via a sealant 24. The refrigerant gas compressed as described above is discharged from the discharge port 22 to the high-pressure portion 20 in the closed vessel 5 and then discharged out of the closed vessel 5 through the discharge pipe 25 as shown by an arrow.

FIG. 2 is an enlarged view of an upper portion of the scroll type compressor 1. The discharge port 22 is inserted in close contact with a through-hole 23 provided through the center of the partition plate 19 via a sealing material 24. A convex portion 26 is provided integrally with the partition plate 19 on the high pressure portion 20 side of the partition plate 19 so as to surround the discharge port 22. The height (H) and width (W) of the convex portion 26 are not particularly limited because they differ depending on the model or the like. It is preferable to determine such that pulsation of the discharged refrigerant gas can be suppressed or prevented. Reference numeral 27 denotes a welded portion of the body 2, the partition plate 19, and the end cap 3 of the scroll compressor 1.

Since the present invention is not limited to the above embodiment, various modifications can be made without departing from the spirit of the appended claims.

[0012]

The scroll type compressor of the present invention is a scroll type compressor having a partition plate which is mounted by press-fitting, welding or shrink fitting into a closed container to partition the inside of the closed container into a high pressure portion and a low pressure portion. Yes, the pulsation of the refrigerant gas discharged from the discharge port to the high-pressure section can be suppressed and prevented in the sealed container, eliminating the problem of vibrating the pipes and possibly breaking the pipes, and removing the pipes outside the scroll compressor. It is not necessary to attach a discharge muffler having a silencing function, which results in cost reduction. The partition plate provided with the convex portion surrounding the discharge port has a simple structure, and pulsation of the refrigerant gas discharged from the discharge port to the high-pressure portion can be sufficiently suppressed and prevented in the closed vessel, so that the cost is further reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a main part of a scroll compressor of the present invention.

FIG. 2 is an explanatory diagram illustrating an enlarged upper portion of the scroll compressor of the present invention shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Scroll type compressor 2 Body part 3 End cap 4 Bottom 5 Airtight container 6 Electric element 7 Scroll compression element 8 Stator 9 Rotor 10 Rotating shaft 11 Pin part 15 Fixed scroll 16 Wrap (teeth) 19 Partition plate 20 High pressure part 21 Low pressure part 22 Discharge Port 23 Through Hole 24 Sealing Material 26 Convex 27 Weld

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Yoshiaki Koike 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. No. 5 Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. An electric element provided in a closed container, a scroll compression element driven by the electric element,
A partition plate for partitioning the inside of the closed vessel into a high-pressure section and a low-pressure section, and discharging the refrigerant gas compressed by the scroll compression element from a discharge port provided in the scroll compression element into the high-pressure section; A scroll compressor that discharges outside of a container, wherein the partition plate has a muffler structure having a muffling function. 2. The scroll compressor according to claim 1, wherein the partition plate has a convex portion surrounding the discharge port on a high-pressure portion side.