U.S. patent application number 10/917446 was filed with the patent office on 2005-08-25 for apparatus for absorbing vibration of compressor.
Invention is credited to Kim, Yong-Gu, Lee, Dong-Hoon, Lee, Tae-Hee, Yun, Young-Hoon.
Application Number | 20050186092 10/917446 |
Document ID | / |
Family ID | 34858778 |
Filed Date | 2005-08-25 |
United States Patent
Application |
20050186092 |
Kind Code |
A1 |
Lee, Dong-Hoon ; et
al. |
August 25, 2005 |
Apparatus for absorbing vibration of compressor
Abstract
An apparatus for absorbing vibration of a compressor includes:
an elastic body mounted at an outer surface of a compressor case
and elastically deformed when vibration is generated at a
compressor; and a mass body connected to the elastic body,
resonating with the compressor, for absorbing vibration of the
compressor. Accordingly, vibration of the compressor is reduced so
that noise and reliability degradation of a component due to the
vibration can be reduced.
Inventors: |
Lee, Dong-Hoon; (Incheon,
KR) ; Yun, Young-Hoon; (Daegu, KR) ; Kim,
Yong-Gu; (Suwon, KR) ; Lee, Tae-Hee; (Seoul,
KR) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Family ID: |
34858778 |
Appl. No.: |
10/917446 |
Filed: |
August 13, 2004 |
Current U.S.
Class: |
417/363 ;
417/902 |
Current CPC
Class: |
F04B 39/0027 20130101;
F04B 39/0044 20130101; F16F 7/104 20130101; F04B 39/121
20130101 |
Class at
Publication: |
417/363 ;
417/902 |
International
Class: |
F04B 017/00; F04B
035/00 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 20, 2004 |
KR |
10-2004-0011468 |
Claims
What is claimed is:
1. An apparatus for absorbing vibration of a compressor comprising:
an elastic body mounted at an outer surface of a compressor case
and elastically deformed when vibration is generated at a
compressor; and at least one mass body connected to the elastic
body, resonating with the compressor, for absorbing vibration of
the compressor.
2. The apparatus of claim 1, wherein a plurality of the elastic
bodies are disposed at an outer surface of the case of the
compressor at regular intervals in a circumferential direction.
3. The apparatus of claim 1, wherein the elastic body is a plate
spring having one end connected to an outer surface of the
compressor case and the other end connected to the mass body.
4. The apparatus of claim 2, wherein the elastic body is a coil
spring having one end connected to an outer surface of the
compressor case and the other end connected to the mass body.
5. The apparatus of claim 1, wherein the mass body is formed in a
ring shape and disposed in a circumferential direction of the
compressor case.
6. The apparatus of claim 1, wherein the mass of the mass body is
about 5.about.25% of the mass of the compressor main body.
7. The apparatus of claim 2, further comprising a fixing member
mounted at an outer circumferential surface of the compressor case,
for fixing the elastic body to the compressor case.
8. The apparatus of claim 7, wherein the fixing member is formed in
a ring shape and insertedly coupled to the outer surface of the
compressor case in a circumferential direction.
9. The apparatus of claim 7, wherein the elastic bodies are
integrally formed at an outer surface of the fixing member at
regular intervals.
10. The apparatus of claim 7, further comprising a stopper for
preventing the fixing member which is insertedly coupled to the
compressor case from being slipped out.
11. The apparatus of claim 10, wherein the stopper is outwardly
protruded from an circumferential surface of the compressor
case.
12. The apparatus of claim 9, wherein the elastic body is a coil
spring mounted at an upper surface of the compressor case.
13. The apparatus of claim 1, wherein the elastic body is a coil
spring mounted at an upper surface of the compressor case.
14. The apparatus of claim 13, wherein the mass body is formed in a
plate shape and mounted at an upper surface of the elastic body.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to an apparatus for absorbing
vibration of a compressor, and more particularly, to an apparatus
for absorbing vibration of a compressor capable of reducing noise
due to vibration and improving reliability of a compressor by
reducing vibration of a compressor.
[0003] 2. Description of the Background Art
[0004] In general, a compressor is an apparatus for changing
mechanical energy to compression energy of a compressible
fluid.
[0005] FIG. 1 is a side view showing an installation state of a
conventional compressor. As shown therein, the compressor includes
a case 101 having a receiving space therein; a compression part
(not shown) received inside the case 101, for compressing a fluid;
and an motor part (not shown) received inside the case 101, for
providing a driving force to the compression part.
[0006] A suction pipe 103 for sucking a fluid and a discharge pipe
105 for discharging the compressed fluid are respectively connected
to the case 101 of the compressor. The suction pipe 103 and the
discharge pipe 104 are respectively connected to components such as
a heat exchanger or the like. A fluid for compressing is sucked
through the suction pipe 103, and the compressed fluid is
discharged through the discharge pipe 104.
[0007] A mount bracket 107 is integrally coupled to a lower portion
of the case 101 in order to fixedly install the case 101 at an
installation surface 110. A plurality of rubbers 108 for reducing
vibration are coupled to the mount bracket 107 in order to reduce
the amount of vibration of the compressor, transmitted to the
installation surface 110.
[0008] In the conventional compressor, when vibration is generated
from the compressor, the rubber 108 for reducing vibration,
installed between the installation surface 110 and the mount
bracket 107, reduces the amount of vibration transmitted to the
installation surface. However, since the suction pipe 103 and the
discharge pipe 105 connected to the compressor case 101 are
respectively connected to other components such as a heat exchanger
or the like, the vibration generated from the compressor is
transmitted to the components along the suction pipe 103 and the
discharge pipe 105, thereby causing degradation of performance of
the components, shortening their life spans, and generating noise
due to the vibration.
SUMMARY OF THE INVENTION
[0009] Therefore, an object of the present invention is to provide
an apparatus for absorbing vibration of a compressor capable of
improving reliability of a component, lengthening its life span,
and reducing noise due to vibration by absorbing vibration
generated from the compressor itself.
[0010] To achieve these and other advantages and in accordance with
the purpose of the present invention, as embodied and broadly
described herein, there is provided an apparatus for absorbing
vibration of a compressor comprising: an elastic body mounted at an
outer surface of a compressor case and elastically deformed when
vibration is generated at a compressor; and a mass body connected
to the elastic body, resonating with the compressor, for absorbing
vibration of the compressor.
[0011] Here, preferably, A plurality of the elastic bodies are
disposed at an outer surface of the compressor at regular intervals
in a circumferential direction.
[0012] Effectively, the elastic body is connected to a side surface
of the compressor, being extended outwardly.
[0013] Preferably, the mass body is formed in a ring shape.
[0014] Preferably, a fixing part which is integrally and fixedly
coupled to the outer surface of the compressor is further included,
and, effectively, the elastic body is integrally connected to the
fixing part.
[0015] Preferably, a stopper which is outwardly protruded is formed
at an outer surface of the case of the compressor in order to
support the fixing part.
[0016] The foregoing and other objects, features, aspects and
advantages of the present invention will become more apparent from
the following detailed description of the present invention when
taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are included to provide a
further understanding of the invention and are incorporated in and
constitute a unit of this specification, illustrate embodiments of
the invention and together with the description serve to explain
the principles of the invention.
[0018] In the drawings:
[0019] FIG. 1 is a side view showing an installation state of the
conventional compressor;
[0020] FIG. 2 is a side view of a compressor provided with an
apparatus for absorbing vibration in accordance with a first
embodiment of the present invention;
[0021] FIG. 3 is a plan view of a compressor provided with an
apparatus for absorbing vibration in accordance with a first
embodiment of the present invention;
[0022] FIG. 4 is a sectional view taken along line IV-IV of FIG.
3;
[0023] FIG. 5 is a sectional view equivalent to FIG. 4, showing a
compressor provided with an apparatus for absorbing vibration in
accordance with a second embodiment of the present invention;
[0024] FIG. 6 is a perspective view of an apparatus for absorbing
vibration in accordance with a second embodiment of the present
invention; and
[0025] FIG. 7 is a side view of a compressor provided with an
apparatus for absorbing vibration in accordance with a third
embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0026] Reference will now be made in detail to the preferred
embodiments of the present invention, examples of which are
illustrated in the accompanying drawings.
[0027] There may be a plurality of embodiments of an apparatus for
absorbing vibration of a reciprocating compressor in accordance
with the present invention, and hereinafter, the most preferred
embodiments will now be described.
[0028] FIG. 2 is a side view of a compressor provided with an
apparatus for absorbing vibration in accordance with a first
embodiment of the present invention, FIG. 3 is a plan view of a
compressor provided with an apparatus for absorbing vibration in
accordance with a first embodiment of the present invention, and
FIG. 4 is a sectional view taken along line IV-IV of FIG. 3.
[0029] The compressor in accordance with the present invention
includes: a compressor main body 10 for compressing a fluid; and an
apparatus 20 for absorbing vibration, mounted at an outer side of
the compressor main body 10, for absorbing vibration generated from
the compressor main body 10.
[0030] The compressor main body 10 includes a case 11 having a
certain closed space; a motor part (not shown) mounted in the case
11, for generating a driving force; and a compression part (not
shown) for compressing a fluid by the driving force generated from
the motor part.
[0031] A suction pipe 13 and a discharge pipe 15 are respectively
connected to the outside of the case 11 in order to suck and
discharge a fluid and are respectively connected to components such
as a heat exchanger or the like. A fluid for compressing is sucked
through the suction pipe 13, and the compressed fluid is discharged
through the discharge pipe 15.
[0032] A mount bracket 17 for fixing the compressor main body 10 to
an installation surface 19 is mounted at a lower portion of the
case 11. A plurality of rubbers 18 for reducing vibration is
coupled to the mount bracket 17 and disposed between the mount
bracket 17 and the installation surface 19, making the case 11
isolated from the installation surface 19 at a prescribed
distance.
[0033] The apparatus 20 for absorbing vibration includes a
plurality of elastic bodies 21 disposed at an outer surface of the
case 11, extended therefrom in a radial direction of the case 11,
having one end mounted at an outer surface of the case 11 and
elastically deformed when vibration is generated at the compressor
main body 10; and a mass body 23 mounted at the other end of each
elastic body 21, resonating with the compressor main body 10, for
absorbing vibration of the compressor main body 10.
[0034] Preferably, the elastic body 21 is designed as a plate
spring or a coil spring having a proper elastic force so that the
mass body 23 can have the same natural frequency as natural
frequency (in general, 60 Hz) of the compressor main body 10.
Preferably, one side of the elastic body 21 is coupled to the case
11 by a method such as welding or the like, and its other side is
coupled to the mass body 23 by a method such as welding or the
like.
[0035] The mass body 23 is formed in a ring shape and disposed in a
circumferential direction of the case 11, and, preferably, the mass
of the mass body 23 is designed to be 5.about.25% of the mass of
the compressor main body 10.
[0036] An operation of the compressor provided with a general
apparatus for absorbing vibration constructed as above will now be
described.
[0037] When the compressor is driven, a driving force generated
from the motor part (not shown) is transmitted to the compression
part, and a fluid introduced through the suction pipe 13 of the
compression part is discharged to the discharge pipe 15 after being
compressed. During a compressing process of the fluid, vibration is
generated, and the vibration is transmitted to components such as
the compressor case 11, the suction pipe 13, the discharge pipe 15,
a heat exchanger connected thereto, or the like. At this time, the
vibration generated in driving of the compressor is transmitted to
the mass body 23 by the elastic body 21 so that the compressor is
little vibrated, and the mass body 23 is vibrated with natural
frequency of the compressor main body 10. In more detail, vibration
of the case 11 of the compressor causes deformation of the elastic
body 21 when the compressor is driven. By the deformation of the
elastic body 21, vibration energy is transmitted to the mass body
23. Accordingly, the mass body 23 absorbs the vibration generated
at the compressor main body 10 so that the vibration is little
transmitted to the components such as the suction pipe 13 and the
discharge pipe 15 which are connected to the compressor case 11 and
a heat exchanger connected thereto, thereby reducing the noise
generation and degradation of reliability of components due to the
vibration.
[0038] FIG. 5 is a sectional view equivalent to FIG. 4, showing a
compressor provided with an apparatus for absorbing vibration in
accordance with a second embodiment of the present invention, and
FIG. 6 is a perspective view of an apparatus for absorbing
vibration in accordance with a second embodiment of the present
invention. As shown therein, the present compressor includes an
elastic body 33 mounted at an outer surface of the compressor case
11 and elastically deformed when vibration is generated from the
compressor; and a mass body 35 connected to the elastic body 35,
resonating with the compressor, for absorbing vibration of the
compressor. The compressor further includes a fixing part 31
mounted at an outer circumferential surface of the compressor case
11, for fixing the elastic body 33 to the compressor case 11. Since
the elastic body 31 and the mass body 35 have the same structure as
the above-mentioned structure, descriptions thereabout will be
omitted.
[0039] Preferably, the fixing part 31 is formed in a ring shape,
insertedly coupled to an outer circumferential surface of the case,
and the elastic bodies 33 are connected thereto at regular
intervals therebetween in an outer circumferential direction of the
fixing part 31. A stopper 12 for preventing the fixing part 31,
insertedly coupled to the case 11 from being slipped out is formed
at the case 11. Since the fixing part 31 is integrally coupled to
the compressor main body 10 and thus vibrated therewith, the mass
of the compressor main body 10 is calculated with the mass of the
fixing part 31 included, and the mass of the mass body is
5.about.25% of the mass of the compressor main body 10. Preferably,
the elastic body 33 is designed to have a proper elastic force so
that the mass body 35 resonates with the compressor main body
10.
[0040] Preferably, the stopper is outwardly protruded from the
circumferential surface of the case 11 to support the apparatus 30
for absorbing vibration at its lower side. Here, the fixing part 31
may be coupled to the case 11 by a press fit method or the like,
or, by providing a special bracket at the case 11, the fixing part
31 may be engaged with the bracket by a screw or the like.
[0041] In case of the second embodiment, the apparatus 30 for
absorbing vibration can be more stably supported at the case 11 of
the compressor by the fixing part 31. Furthermore, the apparatus 30
for absorbing vibration and the fixing part 31 are separately
fabricated and coupled to the case of the compressor, thereby
simplifying a fabrication process.
[0042] FIG. 7 is a side view of a compressor having an apparatus
for absorbing vibration in accordance with a third embodiment of
the present invention. As shown therein, in the compressor in
accordance with the present invention, an apparatus for absorbing
vibration is disposed at an upper surface of the compressor case 11
so as to resonate with the compressor in upper and lower
directions.
[0043] The apparatus 40 for absorbing vibration includes an elastic
body 41 having one end integrally coupled to an upper surface of
the case 11 of the compressor so as to expand and contract in upper
and lower directions; and a mass body 43 integrally coupled to an
upper end of the elastic body 41. Preferably, the apparatus for
absorbing vibration is positioned at a place the compressor main
body 10 is most greatly vibrated in upper and lower directions.
[0044] The elastic body 41 is formed as a coil spring which can
expand and contract in upper and lower directions, and its upper
end and lower end are respectively and integrally coupled to the
mass body 43 and the upper surface of the case 11 by a method such
as welding or the like.
[0045] Preferably, the mass body 43 is formed as a plate and
mounted at the upper surface of the elastic body 41.
[0046] An operation of the apparatus for absorbing vibration in
accordance with the present invention will now be described. The
vibration in upper and lower directions, which is generated in
driving of the compressor causes deformation of the elastic body
41, thereby vibrating the mass body 43. That is, vibration energy
of the compressor main body 10 is changed into elastic energy of
the elastic body 41 and is changed again into vibration energy of
the mass body 43, so the mass body 43 which absorbs the vibration
of the compressor main body 10 is vibrated with natural frequency
of the compressor. Accordingly, the compressor main body 10 is
little vibrated.
[0047] Accordingly, the vibration is little transmitted to a
compressor case, a suction pipe, a discharge pipe and components
such as a heat exchanger connected thereto. The embodiment is
effective when the compressor is vibrated in upper and lower
directions.
[0048] As so far described, in the present invention, by providing
an elastic body mounted at a compressor case and elastically
deformed when vibration is generated at the compressor; and a mass
body connected to the elastic body, resonating with the compressor,
for absorbing vibration of the compressor, the vibration of the
compressor case in driving of the compressor causes deformation of
the elastic body, the vibration energy is transmitted to the mass
body by the deformation of the elastic body, and thus the mass body
absorbs the vibration generated at the compressor main body.
Accordingly, the vibration is little transmitted to a suction pipe,
and a discharge pipe connected to the compressor case and
components such as a heat exchanger connected thereto. Accordingly,
the apparatus for absorbing vibration of the compressor can reduce
noise generation and degradation of reliability of components, due
to the vibration.
[0049] As the present invention may be embodied in several forms
without departing from the spirit or essential characteristics
thereof, it should also be understood that the above-described
embodiments are not limited by any of the details of the foregoing
description, unless otherwise specified, but rather should be
construed broadly within its spirit and scope as defined in the
appended claims, and therefore all changes and modifications that
fall within the metes and bounds of the claims, or equivalence of
such metes and bounds are therefore intended to be embraced by the
appended claims.
* * * * *