US20060292023A1 - Compressor - Google Patents
Compressor Download PDFInfo
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- US20060292023A1 US20060292023A1 US11/452,954 US45295406A US2006292023A1 US 20060292023 A1 US20060292023 A1 US 20060292023A1 US 45295406 A US45295406 A US 45295406A US 2006292023 A1 US2006292023 A1 US 2006292023A1
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- Prior art keywords
- sealed case
- weight
- compressor
- compressor according
- vibration
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
Definitions
- the present invention relates to a compressor, and more particularly, to a structure of a compressor capable of reducing vibration and noise from an internal structure of the compressor.
- a compressor includes a driving part for rotating a rotation shaft fixed to a rotor caused by electrical interaction between a stator and the rotor to generate a driving force, a compressing part for compressing a fluid using the driving force, and a sealed case for protecting the components such as driving part, the compressing part, and the like and forming an external appearance of the compressor.
- Compressors are grouped into a reciprocation type compressor, a rotary type compressor, and a scroll type compressor.
- FIG. 1 shows an example of the reciprocation type compressor from among the above-described compressors.
- the reciprocation type compressor includes a sealed case 1 having a predetermined internal space, a driving part 2 installed in the sealed case 1 to generate a driving force, and a compressing part 3 for compressing a fluid.
- the sealed case 1 is made by coupling an upper case 1 a with a lower case 1 b.
- a new sealed case is made of a material and a shape different from the sealed case of the already assembled compressor or a separate vibration absorber is attached to the already assembled compressor.
- those arrangements are complicated, time consuming, and require a great deal of costs.
- the present invention has been made in- view of the above-mentioned problems, and an aspect of the invention is to provide a compressor in which the natural frequency of a sealed case is changed to prevent resonance of the compressor, to prevent vibration and noise from maximizing even when the compressor rotates at a high rotation speed, and to simply reduce vibration and noise from an already assembled compressor.
- the present invention provides a compressor, which included a sealed case, an internal structure having a driving part provided in the sealed case to generate a driving force to compress a fluid, and a compressing part for compressing the fluid, and a weight provided in the sealed case having a predetermined mass to reduce vibration and noise generated by the internal structure.
- the weight includes a neck portion extended from a contacting part contacting the sealed case and being bent, and a free end portion formed by bending the neck portion and spaced apart from the sealed case.
- the free end portion is preferably bent and a part thereof is preferably welded to the sealed case.
- the weight could have a predetermined area and be fixed to the inner surface or the outer surface of the lower side of the sealed case.
- the neck portion is preferably provided with a spring, the weight could have a welding part to be welded to the sealed case by a spot welding, and the neck portion could be thinner than the free end portion.
- FIG. 1 is a drawing of a cross sectional view illustrating a prior art compressor
- FIG. 2 is a drawing of a partial cross sectional view illustrating a lower case of a compressor to which a weight is attached according to a preferred embodiment of the present invention
- FIG. 3 is a drawing of several partial cross sectional views of the weight of the compressor according to the preferred embodiment of the present invention, in which FIGS. 3 a , 3 b , 3 c , and 3 d are views illustrating respective weights of compressors according to first, second, third, and fourth embodiments of the present invention;
- FIG. 4 is a drawing of the inside of the lower case of the compressor to which the weight is attached, in which FIG. 4 a shows the weight shown in FIG. 3 a , and FIG. 4 b shows the weight shown in FIG. 3 d ; and
- FIG. 5 is a drawing of frequency response curves of noise in the compressor according to the preferred embodiments of the present invention, in which FIG. 5 a shows a frequency response curve at 2,880 rpm and FIG. 5 b shows a frequency response curve at 3,480 rpm.
- FIG. 2 is a drawing of a partial cross sectional view illustrating a lower case of a compressor to which a weight for reducing vibration and noise is attached according to a preferred embodiment of the present invention.
- FIG. 4 shows a structure of the compressor with the weight for reducing vibration and noise attached to the inner surface of the lower case of the compressor.
- FIG. 3 shows respective structures for installing the weight for reducing vibration and noise according to the preferred embodiments of the present invention, in which FIGS. 3 a , 3 b , 3 c , and 3 d show first, second, third, and fourth preferred embodiments of the present invention, respectively.
- the compressor according to the preferred embodiment of the present invention includes a sealed case 10 having a predetermined internal space.
- the sealed case 10 includes an upper sealed case (not shown) and a lower case 10 b . Since the internal structures such as the driving part (not shown) and the compressing part (not shown) installed in the sealed case 10 are identical to those of the conventional compressor, the internal structures are omitted from the drawings.
- the compressor includes the reciprocating type compressor, the rotary type compressor, and the scroll type compressor.
- the compressor in which the compression of a fluid is performed is located in the internal space of the lower case 10 b , significant vibration and noise are generated from the lower side of the lower case 10 b . The reason is because vibration and noise are concentrated due to the eccentric rotation and high change of pressure generated during the compression of the fluid.
- FIG. 3 a shows the compressor according to the first preferred embodiment of the present invention.
- the weight 50 having a predetermined mass is fixed to the inner surface of the lower side of the lower case 10 b by spot welding.
- the spot-welded position is referred to as welding part 51 .
- FIG. 3 b shows another view of the compressor according to the second preferred embodiment of the present invention.
- the weight 50 is fixed to the outer surface of the lower side of the lower case 10 b by spot welding.
- FIG. 3 c shows still another view of the compressor according to the first preferred embodiment of the present invention.
- the weight 50 is fixed to the inner surface of the lower side of the lower case 10 b by spot welding.
- the weight 50 has a neck portion 53 formed by extending and bending a closely contacting part 52 closely contacting the lower case 10 b , and a free end portion 54 formed by bending the neck portion 53 . Some of the free end portion 54 is bent and welded to the lower case 10 b . In this welding, spot welding is not required.
- springs 55 are installed to the outer sides of the neck portion 53 .
- the neck portion 53 is sufficiently thin that the neck portion 53 can serve as an elastic body together with the springs 55 .
- FIG. 3 d shows yet another view of the compressor according to the first preferred embodiment of the present invention.
- the weight 50 is fixed to the inner surface of the lower side of the lower case 10 b by spot welding.
- the weight 50 has a neck portion 53 formed by extending and bending a closely contacting part 52 and a free end portion 54 formed by bending the neck portion 53 .
- the free end portion 54 is spaced apart from the lower case 10 b , and springs 55 are installed on the outer sides of the neck portion 53 in the same way as shown in FIG. 3 c.
- k represents the rigidity of the sealed case and m represents the mass of the sealed case.
- the natural frequency can be reduced by increasing the mass of the sealed case.
- the natural frequency f is decreased as a result, the resonance caused by increase in the frequency of vibration generated from the internal structures can be avoided.
- the natural frequency of the sealed case decreases and the frequency of vibration generated inside the compressors may become the same as the natural frequency of the sealed case, since in this case, the vibration and the noise are not very high, it does not matter.
- the compressors rotate at a high rotation speed, the resonance phenomenon can be avoided, and although the frequency of the vibration generated inside the compressors is high, vibration can be reduced at a high RPM of the compressors.
- vibration generated when the compressor rotates at a high rotation speed can be reduced without newly manufacturing a sealed case or adding a vibration absorber.
- FIGS. 5 a and 5 b show frequency response curves with respect to noise measured at a frequency band of 10 kHz when the weight is installed to the compressor according to the first preferred embodiment of the present invention and the compressor rotates at a high rotation speed of 2,880 rpm and 3,480 rpm respectively.
- a broken line represents a frequency response curve of a conventional compressor
- the solid line represents a frequency response curve of the compressor according to the first preferred embodiment of the present invention.
- the compressor according to the first preferred embodiment of the present invention has an improved noise reduction at a high rotation speed faster than 2,800 RPM.
- the weight 50 in FIG. 3 d has a structure for more effectively absorbing vibration generated from the internal structures and transmitted to the sealed case and performs a similar function as a kind of a vibration absorber.
- the sealed case becomes a first massive body
- the neck portion 53 and the springs 55 serve as devices for applying elastic force
- the free end portion 53 serves as a second massive body so that the vibration transmitted to the sealed case vibrates only the free end portion 54 through the neck portion 53 and the springs 55 and, consequently, disappears.
- an exciting force is applied from the internal structure of the compressor to the sealed case and is transmitted to the weight. Since the exciting force makes only the free end portion vibrate, it is transformed into kinetic energy or thermal energy and disappears, and, as a result, vibration is absorbed without vibrating the sealed case.
- the compressor according to the present invention can significantly reduce vibration and noise through use of the weight as shown in FIG. 3 .
- the compressor of the present invention by adding a weight with a simple structure, vibration and noise transmitted from the inside to the exterior of the compressor can be reduced. Moreover, even when reducing vibration and noise from an already assembled compressor, since there is no need to newly manufacture a sealed case or to add a vibration absorber, the compressor of the present invention has advantages in view of time and costs.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A compressor having a structure for reducing vibration and noise from an internal structure is disposed. The compressor includes a sealed case, an internal structure having a driving part disposed in the sealed case for generating a driving force to compress a fluid, and a compressing part disposed in the sealed case for compressing the fluid, and a weight attached to the sealed case having a predetermined mass to reduce vibration and noise generated by the internal structure. Since there is no need to newly manufacture the sealed case or to add an absorber for the purpose of reducing vibration and noise from an already assembled compressor, time and costs are also saved.
Description
- This application claims the benefit of Korean Patent Application No. 2005-5333, filed on Jun. 21, 2005, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to a compressor, and more particularly, to a structure of a compressor capable of reducing vibration and noise from an internal structure of the compressor.
- 2. Description of the Related Art
- Generally, a compressor includes a driving part for rotating a rotation shaft fixed to a rotor caused by electrical interaction between a stator and the rotor to generate a driving force, a compressing part for compressing a fluid using the driving force, and a sealed case for protecting the components such as driving part, the compressing part, and the like and forming an external appearance of the compressor. Compressors are grouped into a reciprocation type compressor, a rotary type compressor, and a scroll type compressor.
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FIG. 1 shows an example of the reciprocation type compressor from among the above-described compressors. As shown inFIG. 1 , the reciprocation type compressor includes a sealed case 1 having a predetermined internal space, a driving part 2 installed in the sealed case 1 to generate a driving force, and acompressing part 3 for compressing a fluid. The sealed case 1 is made by coupling an upper case 1 a with alower case 1 b. - In this compressor, when the driving force is generated from the driving part 2, when the driving force is consumed by the compressing part for the compression, and when a fluid is compressed and the compressed fluid is discharged, a great deal of vibration and noise is generated, some of which can be eliminated by a vibration absorbing device and a noise absorbing device.
- However, when a rate of rotation of the rotation shaft in the compressor is gradually increased, frequency of vibration generated from the internal structure of the compressor may become the same as the natural frequency of the sealed case, resulting in a resonant state so that the vibration and noise are maximized.
- When the vibration and noise is transmitted to the exterior of the compressor, the impact on a user is increased and the life span of the compressor is decreased.
- Moreover, in order to reduce vibration and noise from an already assembled compressor, a new sealed case is made of a material and a shape different from the sealed case of the already assembled compressor or a separate vibration absorber is attached to the already assembled compressor. However, those arrangements are complicated, time consuming, and require a great deal of costs.
- The present invention has been made in- view of the above-mentioned problems, and an aspect of the invention is to provide a compressor in which the natural frequency of a sealed case is changed to prevent resonance of the compressor, to prevent vibration and noise from maximizing even when the compressor rotates at a high rotation speed, and to simply reduce vibration and noise from an already assembled compressor.
- In accordance with one aspect, the present invention provides a compressor, which included a sealed case, an internal structure having a driving part provided in the sealed case to generate a driving force to compress a fluid, and a compressing part for compressing the fluid, and a weight provided in the sealed case having a predetermined mass to reduce vibration and noise generated by the internal structure.
- Preferably, the weight includes a neck portion extended from a contacting part contacting the sealed case and being bent, and a free end portion formed by bending the neck portion and spaced apart from the sealed case.
- The free end portion is preferably bent and a part thereof is preferably welded to the sealed case.
- Moreover, the weight could have a predetermined area and be fixed to the inner surface or the outer surface of the lower side of the sealed case.
- The neck portion is preferably provided with a spring, the weight could have a welding part to be welded to the sealed case by a spot welding, and the neck portion could be thinner than the free end portion.
- With those and other objects, advantages and features of the invention that may become hereinafter apparent, the nature of the invention may be more clearly understood by reference to the following detailed description of the invention, the appended claims and to the several drawings attached herein.
-
FIG. 1 is a drawing of a cross sectional view illustrating a prior art compressor; -
FIG. 2 is a drawing of a partial cross sectional view illustrating a lower case of a compressor to which a weight is attached according to a preferred embodiment of the present invention; -
FIG. 3 is a drawing of several partial cross sectional views of the weight of the compressor according to the preferred embodiment of the present invention, in whichFIGS. 3 a, 3 b, 3 c, and 3 d are views illustrating respective weights of compressors according to first, second, third, and fourth embodiments of the present invention; -
FIG. 4 is a drawing of the inside of the lower case of the compressor to which the weight is attached, in whichFIG. 4 a shows the weight shown inFIG. 3 a, andFIG. 4 b shows the weight shown inFIG. 3 d; and -
FIG. 5 is a drawing of frequency response curves of noise in the compressor according to the preferred embodiments of the present invention, in whichFIG. 5 a shows a frequency response curve at 2,880 rpm andFIG. 5 b shows a frequency response curve at 3,480 rpm. - Hereinafter the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
-
FIG. 2 is a drawing of a partial cross sectional view illustrating a lower case of a compressor to which a weight for reducing vibration and noise is attached according to a preferred embodiment of the present invention.FIG. 4 shows a structure of the compressor with the weight for reducing vibration and noise attached to the inner surface of the lower case of the compressor.FIG. 3 shows respective structures for installing the weight for reducing vibration and noise according to the preferred embodiments of the present invention, in whichFIGS. 3 a, 3 b, 3 c, and 3 d show first, second, third, and fourth preferred embodiments of the present invention, respectively. - As shown in
FIG. 2 , the compressor according to the preferred embodiment of the present invention includes a sealed case 10 having a predetermined internal space. The sealed case 10 includes an upper sealed case (not shown) and alower case 10 b. Since the internal structures such as the driving part (not shown) and the compressing part (not shown) installed in the sealed case 10 are identical to those of the conventional compressor, the internal structures are omitted from the drawings. - Here, the compressor includes the reciprocating type compressor, the rotary type compressor, and the scroll type compressor. When the compressor in which the compression of a fluid is performed is located in the internal space of the
lower case 10 b, significant vibration and noise are generated from the lower side of thelower case 10 b. The reason is because vibration and noise are concentrated due to the eccentric rotation and high change of pressure generated during the compression of the fluid. -
FIG. 3 a shows the compressor according to the first preferred embodiment of the present invention. Theweight 50 having a predetermined mass is fixed to the inner surface of the lower side of thelower case 10 b by spot welding. Here, the spot-welded position is referred to aswelding part 51. -
FIG. 3 b shows another view of the compressor according to the second preferred embodiment of the present invention. Theweight 50 is fixed to the outer surface of the lower side of thelower case 10 b by spot welding. - Meanwhile, it is possible to fix the
weights 50 to the outer surface and the inner surface of the lower side of thelower case 10 b by simultaneously applying the first preferred embodiment and the second preferred embodiment of the present invention as shown inFIGS. 3 a and 3 b. -
FIG. 3 c shows still another view of the compressor according to the first preferred embodiment of the present invention. Theweight 50 is fixed to the inner surface of the lower side of thelower case 10 b by spot welding. Theweight 50 has aneck portion 53 formed by extending and bending a closely contactingpart 52 closely contacting thelower case 10 b, and afree end portion 54 formed by bending theneck portion 53. Some of thefree end portion 54 is bent and welded to thelower case 10 b. In this welding, spot welding is not required. With regard to theneck portion 53, in order to increase the efficiency of damping the vibration,springs 55 are installed to the outer sides of theneck portion 53. Theneck portion 53 is sufficiently thin that theneck portion 53 can serve as an elastic body together with thesprings 55. -
FIG. 3 d shows yet another view of the compressor according to the first preferred embodiment of the present invention. Theweight 50 is fixed to the inner surface of the lower side of thelower case 10 b by spot welding. Theweight 50 has aneck portion 53 formed by extending and bending a closely contactingpart 52 and afree end portion 54 formed by bending theneck portion 53. Thefree end portion 54 is spaced apart from thelower case 10 b, andsprings 55 are installed on the outer sides of theneck portion 53 in the same way as shown inFIG. 3 c. - Hereinafter, operation of the invention for reducing vibration and noise in the compressors according to the preferred embodiments of the present invention will be described in detail.
- If the natural frequency of the sealed case is set to f when vibration caused by the internal structures of the compressors is transmitted to the sealed case, the natural frequency f can be expressed as the following formula.
- Here, k represents the rigidity of the sealed case and m represents the mass of the sealed case. In other words, the natural frequency can be reduced by increasing the mass of the sealed case. When the natural frequency f is decreased as a result, the resonance caused by increase in the frequency of vibration generated from the internal structures can be avoided. In other words, by adding the weight to the sealed case, the natural frequency of the sealed case decreases and the frequency of vibration generated inside the compressors may become the same as the natural frequency of the sealed case, since in this case, the vibration and the noise are not very high, it does not matter. When the compressors rotate at a high rotation speed, the resonance phenomenon can be avoided, and although the frequency of the vibration generated inside the compressors is high, vibration can be reduced at a high RPM of the compressors.
- Thus, by simply installing the weight to an already assembled compressor, vibration generated when the compressor rotates at a high rotation speed can be reduced without newly manufacturing a sealed case or adding a vibration absorber.
- Also, since ambient air is also vibrated when vibration occurs, an acoustic wave is generated. The acoustic wave becomes noise when the intensity of the acoustic wave is increased. Since energy caused by the vibration is proportional to the intensity, I, of sound and the intensity, I, of sound is proportional to the magnitude of noise, and since vibration is reduced by which the resonance is prevented when the compressors according to the preferred embodiments of the present invention rotate at a high rotation speed, vibration and noise are simultaneously reduced.
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FIGS. 5 a and 5 b show frequency response curves with respect to noise measured at a frequency band of 10 kHz when the weight is installed to the compressor according to the first preferred embodiment of the present invention and the compressor rotates at a high rotation speed of 2,880 rpm and 3,480 rpm respectively. In the drawings, a broken line represents a frequency response curve of a conventional compressor, and the solid line represents a frequency response curve of the compressor according to the first preferred embodiment of the present invention. As one can see from experimental results as shown inFIG. 5 , the compressor according to the first preferred embodiment of the present invention has an improved noise reduction at a high rotation speed faster than 2,800 RPM. - Also, the
weight 50 inFIG. 3 d has a structure for more effectively absorbing vibration generated from the internal structures and transmitted to the sealed case and performs a similar function as a kind of a vibration absorber. In other words, the sealed case becomes a first massive body, theneck portion 53 and thesprings 55 serve as devices for applying elastic force, and thefree end portion 53 serves as a second massive body so that the vibration transmitted to the sealed case vibrates only thefree end portion 54 through theneck portion 53 and thesprings 55 and, consequently, disappears. Thus, an exciting force is applied from the internal structure of the compressor to the sealed case and is transmitted to the weight. Since the exciting force makes only the free end portion vibrate, it is transformed into kinetic energy or thermal energy and disappears, and, as a result, vibration is absorbed without vibrating the sealed case. - As a result, the compressor according to the present invention can significantly reduce vibration and noise through use of the weight as shown in
FIG. 3 . - As described above, according to the compressor of the present invention, by adding a weight with a simple structure, vibration and noise transmitted from the inside to the exterior of the compressor can be reduced. Moreover, even when reducing vibration and noise from an already assembled compressor, since there is no need to newly manufacture a sealed case or to add a vibration absorber, the compressor of the present invention has advantages in view of time and costs.
- It should be emphasized that the above-described embodiments of the present invention, and particularly, any preferred embodiments, are merely possible examples of implementations, merely set forth for a clear understanding of the principles of the invention. Many variations and modifications may be made to the above-described embodiments of the invention, without departing substantially from the spirit and principles of the invention. All such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.
Claims (19)
1. A compressor comprising:
a sealed case forming an internal structure, the internal structure comprising a driving part disposed in the sealed case adapted to generating a driving force for compressing a fluid, and a compressing part adapted to compressing the fluid; and
a weight attached to the sealed case and having a predetermined mass, wherein the weight reduces vibration and noise generated by the internal structure.
2. The compressor according to claim 1 , wherein the weight has a predetermined area and is attached to an inner surface of a lower side of the sealed case.
3. The compressor according to claim 1 , wherein the weight has a predetermined area and is attached to an outer surface of a lower side of the sealed case.
4. The compressor according to claim 1 , wherein a portion of the weight is welded to the sealed case by spot welding.
5. The compressor according to claim 1 , wherein the weight is used when the compressor is rotated at a high rotation speed faster than 2,800 RPM so that vibration and noise are reduced.
6. A compressor comprising:
a sealed case forming an internal structure, the internal structure comprising a driving part disposed in the sealed case adapted to generating a driving force for compressing a fluid, and a compressing part adapted to compressing the fluid; and
a weight attached to the sealed case and having a predetermined mass for reducing vibration and noise generated by the internal structure, the weight comprising:
a neck portion extending from a contacting portion contacting the sealed case, wherein the neck portion is bent; and
a free end portion formed by bending the neck portion and spaced apart from the sealed case.
7. The compressor according to claim 6 , wherein the weight has a predetermined area and is attached to the inner surface of a lower side of the sealed case.
8. The compressor according to claim 6 , wherein the weight has a predetermined area and is attached to an outer surface of a lower side of the sealed case.
9. The compressor according to claim 6 , further comprising a spring disposed proximate the neck potion.
10. The compressor according to claim 6 , wherein a portion of the weight is welded to the sealed case by spot welding.
11. The compressor according to claim 6 , wherein the weight is used when the compressor is rotated at a high rotation speed faster than 2,800 RPM so that vibration and noise are reduced.
12. The compressor according to claim 6 , wherein the neck portion is thinner than the free end portion.
13. A compressor comprising:
a sealed case;
an internal structure having at least a driving part disposed in the sealed case to generate a driving force to compress a fluid, and a compressing part for compressing the fluid; and
a weight attached to the sealed case and having a predetermined mass, wherein the weight reduces vibration and noise generated by the internal structure, and wherein the weight comprises:
a neck portion extending from a contacting portion contacting the sealed case, wherein the neck portion is bent; and
a free end portion formed by bending the neck portion, wherein the free portion is spaced apart from the sealed case, wherein the free end portion is bent and a part thereof is welded to the sealed case.
14. The compressor according to claim 13 , wherein the weight has a predetermined area and is attached to an inner surface of a lower side of the sealed case.
15. The compressor according to claim 13 , wherein the weight has a predetermined area and is attached to an outer surface of a lower side of the sealed case.
16. The compressor according to claim 13 , further comprising a spring disposed proximate the neck portion.
17. The compressor according to claim 13 , wherein the contacting portion of the weight is welded to the sealed case by spot welding.
18. The compressor according to claim 13 , wherein the weight is used when the compressor is rotated at a high rotation speed faster than 2,800 RPM so that vibration and noise are reduced.
19. The compressor according to claim 13 , wherein the neck portion is thinner than the free end portion.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR2005-53333 | 2005-06-21 | ||
KR1020050053333A KR100643195B1 (en) | 2005-06-21 | 2005-06-21 | Compressor |
Publications (1)
Publication Number | Publication Date |
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US20060292023A1 true US20060292023A1 (en) | 2006-12-28 |
Family
ID=37567610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/452,954 Abandoned US20060292023A1 (en) | 2005-06-21 | 2006-06-15 | Compressor |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060292023A1 (en) |
JP (1) | JP2007002847A (en) |
KR (1) | KR100643195B1 (en) |
CN (1) | CN1884829A (en) |
BR (1) | BRPI0602343A (en) |
IT (1) | ITTO20060456A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8118564B2 (en) | 2006-11-27 | 2012-02-21 | Kabushiki Kaisha Toyota Jidoshokki | Motor-driven compressor |
CN104334882A (en) * | 2012-03-23 | 2015-02-04 | 比策尔制冷机械制造有限公司 | Compressor baseplate with stiffening ribs for increased oil volume and rail mounting without spacers |
EP2863058A1 (en) | 2013-10-15 | 2015-04-22 | Whirlpool S.A. | Tuned vibration neutralizer device |
US20170211563A1 (en) * | 2014-09-30 | 2017-07-27 | Panasonic Intellectual Property Management Co., Ltd. | Hermetic compressor and refrigeration device |
US20210172430A1 (en) * | 2019-12-06 | 2021-06-10 | Microjet Technology Co., Ltd. | Miniature blower |
US20220364553A1 (en) * | 2021-05-14 | 2022-11-17 | Lg Electronics Inc. | Compressor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010051265B4 (en) * | 2010-11-12 | 2019-10-02 | Secop Gmbh | Refrigerant compressor |
KR20200015085A (en) * | 2018-08-02 | 2020-02-12 | 엘지전자 주식회사 | Apparatus for reducing noise and compressor including the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US6422833B1 (en) * | 2000-03-07 | 2002-07-23 | Samsung Kwangju Electronics Co., Ltd. | Resonance reducing device for a hermetic compressor |
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2005
- 2005-06-21 KR KR1020050053333A patent/KR100643195B1/en not_active IP Right Cessation
-
2006
- 2006-06-15 US US11/452,954 patent/US20060292023A1/en not_active Abandoned
- 2006-06-19 JP JP2006169074A patent/JP2007002847A/en active Pending
- 2006-06-20 IT IT000456A patent/ITTO20060456A1/en unknown
- 2006-06-20 BR BRPI0602343-6A patent/BRPI0602343A/en not_active IP Right Cessation
- 2006-06-20 CN CNA2006100946339A patent/CN1884829A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6422833B1 (en) * | 2000-03-07 | 2002-07-23 | Samsung Kwangju Electronics Co., Ltd. | Resonance reducing device for a hermetic compressor |
Cited By (9)
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US8118564B2 (en) | 2006-11-27 | 2012-02-21 | Kabushiki Kaisha Toyota Jidoshokki | Motor-driven compressor |
CN104334882A (en) * | 2012-03-23 | 2015-02-04 | 比策尔制冷机械制造有限公司 | Compressor baseplate with stiffening ribs for increased oil volume and rail mounting without spacers |
EP2863058A1 (en) | 2013-10-15 | 2015-04-22 | Whirlpool S.A. | Tuned vibration neutralizer device |
US20170211563A1 (en) * | 2014-09-30 | 2017-07-27 | Panasonic Intellectual Property Management Co., Ltd. | Hermetic compressor and refrigeration device |
US10544782B2 (en) * | 2014-09-30 | 2020-01-28 | Panasonic Appliances Refrigeration Devices Singapore | Hermetic compressor and refrigeration device |
US20210172430A1 (en) * | 2019-12-06 | 2021-06-10 | Microjet Technology Co., Ltd. | Miniature blower |
US11746769B2 (en) * | 2019-12-06 | 2023-09-05 | Microjet Technology Co., Ltd. | Miniature blower |
US20220364553A1 (en) * | 2021-05-14 | 2022-11-17 | Lg Electronics Inc. | Compressor |
US11982266B2 (en) * | 2021-05-14 | 2024-05-14 | Lg Electronics Inc. | Compressor |
Also Published As
Publication number | Publication date |
---|---|
JP2007002847A (en) | 2007-01-11 |
CN1884829A (en) | 2006-12-27 |
ITTO20060456A1 (en) | 2006-12-22 |
BRPI0602343A (en) | 2007-02-21 |
KR100643195B1 (en) | 2006-11-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG GWANGJU ELECTRONICS CO., LTD., KOREA, REPU Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KIM, BYUNG HYUN;REEL/FRAME:017998/0802 Effective date: 20060609 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |