CN220850018U - Scroll compressor and refrigeration equipment - Google Patents
Scroll compressor and refrigeration equipment Download PDFInfo
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- CN220850018U CN220850018U CN202322779856.0U CN202322779856U CN220850018U CN 220850018 U CN220850018 U CN 220850018U CN 202322779856 U CN202322779856 U CN 202322779856U CN 220850018 U CN220850018 U CN 220850018U
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 15
- 230000004323 axial length Effects 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 2
- 230000030279 gene silencing Effects 0.000 abstract description 24
- 238000005192 partition Methods 0.000 abstract description 21
- 230000001743 silencing effect Effects 0.000 abstract description 14
- 230000002829 reductive effect Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 12
- 230000010349 pulsation Effects 0.000 abstract description 10
- 230000000670 limiting effect Effects 0.000 abstract description 8
- 238000013016 damping Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 63
- 238000007906 compression Methods 0.000 description 20
- 230000006835 compression Effects 0.000 description 18
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of compressors and discloses a scroll compressor and refrigeration equipment, wherein the scroll compressor comprises a fixed scroll and a partition plate, the upper end of the fixed scroll is provided with an exhaust port and an exhaust channel, and the exhaust port is arranged at the bottom of the exhaust channel; the division board is connected in quiet vortex dish and covers the top of establishing at quiet vortex dish, and the division board is provided with the amortization hole, amortization hole intercommunication exhaust passage, and the equivalent diameter of amortization hole is D, and exhaust passage's diameter is D 2, satisfies: By limiting the diameter ratio of the silencing hole to the exhaust channel, the flow area of the silencing hole is smaller, on one hand, the acoustic impedance of the section can be increased, the propagation of high-frequency noise is reduced, and the silencing effect on the high-frequency noise is good; on the other hand, the flow direction of the exhaust gas is changed, the damping effect on the pressure pulsation of the air flow is achieved, the operation noise of the scroll compressor is reduced, and the product performance and the user experience are improved.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a scroll compressor and refrigeration equipment.
Background
The scroll compressor has the characteristics of high efficiency, small volume, light weight and stable operation, and is widely applied to refrigerating equipment such as air conditioners, heat pumps and the like. In the vortex compressor, the vortex plate is a core part, molded line scrolls on the movable vortex plate and the fixed vortex plate are meshed with each other to form a series of crescent compression cavities, the crescent compression cavities continuously move from the periphery to the center along with the eccentric rotation movement of the movable vortex plate, the volume is gradually reduced, the pressure is gradually increased, and finally, high-pressure refrigerant is discharged through an exhaust port of the fixed vortex plate, so that the compression process is completed. Because the pressure pulsation of the exhaust gas and the shell of the scroll compressor are directly impacted, high-frequency noise is large, and the product performance and the user experience are affected.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the vortex compressor, and the noise problem can be effectively improved by arranging the silencing hole.
The utility model also provides refrigeration equipment with the vortex compressor.
According to the vortex compressor provided by the embodiment of the first aspect of the utility model, the vortex compressor comprises a fixed vortex disc and a division plate, wherein the upper end of the fixed vortex disc is provided with an exhaust port and an exhaust channel, and the exhaust port is arranged at the bottom of the exhaust channel; the division board connect in still vortex dish and cover are established still vortex dish's top, the division board is provided with the amortization hole, amortization hole intercommunication exhaust passage, the equivalent diameter of amortization hole is D, exhaust passage's diameter is D 2, satisfies:
The pump body assembly according to the embodiment of the first aspect of the utility model has at least the following beneficial effects:
The scroll compressor discharges high-pressure refrigerant from the exhaust port, the high-pressure refrigerant passes through the exhaust channel and then passes through the silencing hole arranged on the partition plate, and the flow area of the silencing hole is smaller by limiting the diameter ratio of the silencing hole to the exhaust channel, so that on one hand, the acoustic impedance of the section can be increased, the propagation of high-frequency noise is reduced, and the scroll compressor has a good silencing effect on the high-frequency noise; on the other hand, the flow direction of the exhaust gas is changed, the damping effect on the pressure pulsation of the air flow is achieved, the operation noise of the scroll compressor is reduced, and the product performance and the user experience are improved.
According to some embodiments of the first aspect of the present utility model, the diameter of the exhaust port is D 1, which satisfies the following conditions:
According to some embodiments of the first aspect of the present utility model, the axial length of the sound attenuation hole is H, which satisfies:
According to some embodiments of the first aspect of the present utility model, a distance between the sound deadening hole and the exhaust port in an axial direction of the exhaust passage is L, satisfying:
According to some embodiments of the first aspect of the present utility model, the axial length of the exhaust passage is H 1, which satisfies the following conditions: h 1 > D.
According to some embodiments of the first aspect of the present utility model, a check valve is disposed in the exhaust passage, the check valve includes a valve seat and a piston valve stem, the valve seat is connected to the fixed scroll, a guiding inner hole for guiding the piston valve stem to move is disposed in the valve seat, and the silencing hole is located above the valve seat.
According to some embodiments of the first aspect of the utility model, the axis of the valve seat coincides with the axis of the sound deadening hole, and the cross-sectional area of the valve seat is larger than the cross-sectional area of the sound deadening hole.
According to some embodiments of the first aspect of the utility model, the fixed scroll includes a back pressure plate provided on a side of the fixed scroll adjacent to the partition plate, the back pressure plate is internally provided with the exhaust passage, and the valve seat is provided in the exhaust passage.
According to some embodiments of the first aspect of the present utility model, a pressure relief valve plate and a limiter are disposed in the exhaust passage, the pressure relief valve plate is connected to the fixed scroll and covers the exhaust port, the limiter is connected to the fixed scroll and is located above the pressure relief valve plate, and the silencing hole is located above the limiter.
According to some embodiments of the first aspect of the utility model, at least one of the exhaust port and the sound deadening hole is offset from an axis of the exhaust passage.
According to some embodiments of the first aspect of the utility model, the cross-sectional shape of the sound deadening hole is circular, square, or kidney-shaped.
An embodiment according to a second aspect of the utility model proposes a refrigeration device comprising a scroll compressor according to an embodiment of the first aspect.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a scroll compressor according to some embodiments of the first aspect of the present utility model;
FIG. 2 is a schematic view showing the structure of the connection of the fixed scroll, the partition plate and the upper cover in FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic view of the connection of the fixed scroll, the partition plate and the upper cover according to other embodiments of the first aspect of the present utility model;
FIG. 5 is a partial enlarged view at B in FIG. 4;
FIG. 6 is a schematic view of the flow direction of the exhaust gas in the embodiment of FIG. 4;
FIG. 7 is a top view of the divider plate of FIG. 1;
FIG. 8 is a schematic view of a scroll compressor according to further embodiments of the first aspect of the present utility model;
FIG. 9 is a schematic view illustrating a structure in which the fixed scroll, the partition plate and the upper cover are coupled in FIG. 8;
FIG. 10 is an enlarged view of a portion of FIG. 9 at C;
Fig. 11 is a graph of noise and performance variation of a scroll compressor according to an embodiment of the first aspect of the present utility model.
The reference numerals are as follows:
a housing assembly 100, an upper cover 110, an exhaust pipe 111, a cylinder 120, and a base 130;
motor assembly 200, spindle 210;
compression assembly 300, orbiting scroll 310, fixed scroll 320, exhaust port 321, exhaust passage 322, partition plate 330, sound deadening hole 331, small hole 332, check valve 340, valve seat 341, piston valve stem 342, back pressure plate 350, pressure release valve plate 361, and stopper 362.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The refrigeration equipment is used for preparing cold air by virtue of a refrigeration system to achieve the aim of cooling, wherein the compressor is a power component of the refrigeration system, and the compressor drives the refrigerant to circularly flow so as to realize continuous refrigeration. The vortex compressor compresses the refrigerant by utilizing the cooperation of the movable vortex disk and the fixed vortex disk, molded line scrolls on the movable vortex disk and the fixed vortex disk are meshed with each other to form a series of crescent compression cavities, the crescent compression cavities continuously move from the periphery to the center along with the eccentric rotation movement of the movable vortex disk, the volume is gradually reduced, the pressure of the refrigerant in the crescent compression cavities is gradually increased, the high-pressure refrigerant is finally obtained, and the high-pressure refrigerant is discharged through an exhaust port of the fixed vortex disk to finish the compression process.
The refrigerant discharged from the exhaust port of the fixed scroll has pressure pulsation, and the exhaust passes through the through hole formed by the partition plate, so that the exhaust directly impacts the shell of the scroll compressor due to the large flow area of the through hole, thereby easily causing high-frequency noise and affecting the performance and user experience of the scroll compressor.
Therefore, an embodiment of the first aspect of the present utility model provides a scroll compressor, which can effectively reduce the pulsation impact of the air flow of the exhaust gas and reduce the noise by providing the separation plate with the silencing hole with a small flow area.
As shown in fig. 1 to 5, the embodiment of the first aspect of the present utility model proposes a scroll compressor including a housing assembly 100, a motor assembly 200, and a compression assembly 300, the housing assembly 100 including an upper cover 110, a cylinder 120, and a base 130, the upper cover 110 and the base 130 being fixed at upper and lower ends of the cylinder 120 and forming a receiving chamber, the motor assembly 200 and the compression assembly 300 being disposed in the receiving chamber, the compression assembly 300 including a movable scroll 310 and a fixed scroll 320, the movable scroll 310 being connected to a rotation shaft 210 of the motor assembly 200, the motor assembly 200 being fixed on an inner wall of the cylinder 120 and the movable scroll 310 being eccentrically rotated by the rotation shaft 210 of the motor assembly 200, the movable scroll 310 and the fixed scroll 320 being mated to accomplish compression of a refrigerant. The upper end at quiet vortex dish 320 is provided with gas vent 321 and exhaust passage 322, gas vent 321 sets up in the bottom of exhaust passage 322, compressed refrigerant gets into exhaust passage 322 through gas vent 321, quiet vortex dish 320 is connected with division board 330, and division board 330 cover is established in the top of quiet vortex dish 320, upper cover 110 cover is established in the top of division board 330, upper cover 110 is provided with blast pipe 111 in order to export the refrigerant of high pressure, be provided with amortization hole 331 on division board 330, amortization hole 331 intercommunication exhaust passage 322, as shown in fig. 3, the equivalent diameter of amortization hole 331 defines as D, the diameter of exhaust passage 322 defines as D 2, satisfy in the design:
When the scroll compressor is operated, high-pressure refrigerant is discharged from the discharge port 321 of the fixed scroll 320, and the high-pressure refrigerant is introduced into the discharge passage 322, and since the discharge passage 322 has a large diameter, it has an expanding and silencing effect, and then the refrigerant is introduced into the silencing hole 331 provided in the partition plate 330, since it is defined in design By limiting the diameter ratio of the silencing hole 331 to the exhaust passage 322, the flow area of the silencing hole 331 is smaller, on one hand, the acoustic impedance of the section can be increased, the propagation of high-frequency noise (with shorter wavelength) is reduced, and the silencing effect on the high-frequency noise is good; as shown in fig. 6, on the other hand, the flow direction of the refrigerant gas is changed, the high-frequency noise collides with the inner wall of the discharge passage 322 and the partition plate 330, so that the propagation of the high-frequency noise can be reduced, and the partition plate 330 has an attenuation effect on the pressure pulsation of the refrigerant, thereby helping to reduce the operation noise of the scroll compressor and improving the product performance and user experience.
Referring to FIG. 11, where the OA curve represents noise in dB and the COP curve represents the performance improvement in pts, the resulting variables are shown for different apertures of the sound deadening hole 331. Therefore, the embodiment of the present utility model can effectively improve noise and lifting performance of the scroll compressor by defining the sound deadening hole 331 on the partition plate 330.
It can be understood that the equivalent diameter of the sound deadening hole 331 is defined as D, and when the sound deadening hole 331 is a circular hole, the equivalent diameter is the diameter of the circular hole; when the sound deadening hole 331 is a non-circular hole, thenWhere a is the cross-sectional area of the sound deadening hole 331.
It will be appreciated that the diameter of the exhaust port 321 is defined as D 1, and is also designed to satisfy: Namely, simultaneously satisfies: /(I) And/>The equivalent diameter of the silencing hole 331 is substantially smaller than the diameter of the exhaust passage 322, so that exhaust changes flow direction and increases acoustic impedance to help reduce noise, and the equivalent diameter of the silencing hole 331 is larger than the diameter of the exhaust port 321 to meet the exhaust capacity requirement, prevent from affecting the exhaust of the scroll compressor and help to improve the performance of the scroll compressor.
It will be appreciated that, referring to fig. 3, the axial length of the sound deadening hole 331 is defined as H, and the design satisfies: Since the silencing effect of the silencing hole 331 is affected by the equivalent diameter and the axial length, the smaller the equivalent diameter and the larger the axial length, the better the effect, but the exhaust efficiency is affected at the same time, the equivalent diameter and the axial length are limited in a certain range, and by design, the following is defined: /(I) Not only can obtain better silencing effect, but also can meet the requirement of exhaust, and does not influence the exhaust quantity.
It will be appreciated that, referring to fig. 3, along the axial direction of the exhaust passage 322, the distance between the sound deadening hole 331 and the exhaust port 321 is L, which satisfies in design: By defining the distance between the sound deadening hole 331 and the exhaust port 321, the refrigerant discharged from the exhaust port 321 is inevitably moved in the exhaust passage 322, and the diameter of the exhaust passage 322 is large, so that the refrigerant has an effect of expanding and deadening. In addition, the distance between the sound deadening hole 331 and the exhaust port 321 is defined, and the refrigerant is prevented from being directly discharged from the sound deadening hole 331, so that the sound deadening effect is improved.
It will be appreciated that referring to fig. 3, the axial length of the exhaust passage 322 is defined as H 1, which is designed to satisfy: h 1 > D, by limiting the axial length of the exhaust channel 322 to be greater than the equivalent diameter of the silencing hole 331, the refrigerant discharged from the exhaust port 321 is inevitably diffused and moved in the exhaust channel 322, so that the expansion silencing effect is achieved, and the refrigerant is prevented from rapidly reaching the silencing hole 331, so that a better silencing effect is achieved.
Referring to fig. 2 and 3, in some embodiments, the scroll compressor is provided with a check valve 340 in a discharge passage 322, the check valve 340 including a fixed valve seat 341 and a movable piston valve stem 342, the valve seat 340 being fixedly coupled to the fixed scroll 320, a guide inner hole for guiding movement of the piston valve stem 342 being provided in the valve seat 341, the piston valve stem 342 being movable in the guide inner hole, refrigerant gas being lifted up the piston valve stem 342 and then flowing into the discharge passage 322 when discharging, the silencing hole 331 being located above the valve seat 341, and finally the refrigerant gas being discharged from the silencing hole 331. The check valve 340 functions to prevent the refrigerant from flowing back and the refrigerant starts the orbiting scroll 310 to reverse rotation to damage the motor assembly 200.
Referring to fig. 2 and 3, the fixed scroll 320 includes a back pressure plate 350, the back pressure plate 350 is disposed on one side of the fixed scroll 320 near the partition plate 330, and the exhaust passage 322 and the valve seat 341 are disposed on the back pressure plate 350, because the valve seat 341 covers the upper side of the piston valve stem 342, in the assembly, the piston valve stem 342 is first installed into the guiding inner hole of the valve seat 341, and then the valve seat 341 is installed on the fixed scroll 320, thereby simplifying the structure and assembly, and improving the production efficiency.
As shown in fig. 3, the axis of the valve seat 341 coincides with the axis of the sound deadening hole 331, and the cross-sectional area of the valve seat 341 is larger than that of the sound deadening hole 331, the refrigerant discharged from the discharge port 321 is blocked by the valve seat 341, must bypass the valve seat 341 and then turn to enter the sound deadening hole 331, by changing the flow direction of the refrigerant flow, it is advantageous to reduce the propagation of high frequency noise, and the valve seat 341 and the partition plate 330 have a damping effect on the pressure pulsation of the refrigerant, contributing to the reduction of the operation noise of the scroll compressor.
Referring to fig. 4 and 5, in other embodiments, a scroll compressor is provided with a pressure release valve plate 361 and a limiter 362 in a discharge channel 322, one end of the pressure release valve plate 361 is fixedly connected to a fixed scroll 320, the other end covers an exhaust port 321, the exhaust port 321 is closed by the pressure release valve plate 361, when the compression assembly 300 completes one-time compression of the refrigerant, the high-pressure refrigerant can jack up the pressure release valve plate 361 to discharge, and the limiter 362 acts to limit the lift of the valve plate, prevent the pressure release valve plate 361 from excessively deforming, and protect the pressure release valve plate 361. Therefore, the limiter 362 is connected to the fixed scroll 320 and located above the pressure relief valve plate 361, the silencing hole 331 is located above the limiter 362, and when exhausting, the refrigerant gas lifts up the pressure relief valve plate 361, and then flows into the exhaust channel 322, and finally the refrigerant gas is discharged from the silencing hole 331. The relief valve plate 361 also prevents the refrigerant from flowing back, and prevents the refrigerant from driving the orbiting scroll 310 to reverse and damage the motor assembly 200.
It will be appreciated that at least one of the exhaust port 321 and the sound deadening hole 331 is offset from the axis of the exhaust passage 322, and can cause the exhaust gas flow to deflect in direction. It is also possible that both the exhaust port 321 and the sound deadening hole 331 are offset from the axis of the exhaust passage 322, and that the exhaust port 321 is distributed on one side of the axis of the exhaust passage 322, and that the sound deadening hole 331 is distributed on the other side of the axis of the exhaust passage 322. The refrigerant discharged from the discharge port 321 enters the discharge passage 322, needs to bypass the stopper 362 and flow to the sound deadening hole 331 at the other side of the discharge passage 322, and changes the flow direction of the refrigerant a plurality of times, which is advantageous in reducing pressure pulsation.
According to some embodiments of the first aspect of the present utility model, the cross-sectional shape of the sound deadening hole 331 is generally circular, is easy to process, and has a large flow area. Of course, the cross section of the sound deadening hole 331 may be non-circular, for example, the cross section of the sound deadening hole 331 may be square or kidney-shaped, which can meet the requirements of sound deadening and exhaust.
An embodiment of the second aspect of the present utility model proposes a refrigeration apparatus having a refrigeration system comprising the scroll compressor, the condenser, the throttling device and the evaporator of the embodiment of the first aspect connected in sequence by piping, the scroll compressor, the condenser, the throttling device and the evaporator constituting a circulation flow path of a refrigerant by piping. When the refrigeration equipment operates, the scroll compressor compresses the sucked refrigerant gas, then the refrigerant with high temperature and high pressure obtained after compression is input into the condenser, the condenser is utilized to cool the refrigerant, the refrigerant output by the condenser enters the throttling device, the throttling device plays a role in throttling and depressurization, the temperature and the pressure of the refrigerant are further reduced, the refrigerant entering the evaporator becomes low-pressure liquid with lower saturation temperature, the refrigerant evaporates in the evaporator and absorbs the heat of air, so that cold air is prepared, and the cold air is input into a use space to help cool. The refrigerant output by the evaporator returns to the scroll compressor to complete one cycle, and the scroll compressor continuously operates to provide power for the refrigerant to drive the refrigerant to circularly flow for continuous refrigeration.
The scroll compressor includes a housing assembly 100, a motor assembly 200, and a compression assembly 300, the housing assembly 100 includes an upper cover 110, a cylinder 120, and a base 130, the upper cover 110 and the base 130 are fixed at upper and lower ends of the cylinder 120 and form a receiving chamber, the motor assembly 200 and the compression assembly 300 are disposed in the receiving chamber, the compression assembly 300 includes a movable scroll 310 and a fixed scroll 320, the movable scroll 310 is connected to a rotation shaft 210 of the motor assembly 200, the motor assembly 200 is fixed on an inner wall of the cylinder 120, and the movable scroll 310 is driven to eccentrically rotate by the rotation shaft 210 of the motor assembly 200, and the movable scroll 310 and the fixed scroll 320 cooperate to accomplish compression of a refrigerant. The upper end at quiet vortex dish 320 is provided with gas vent 321 and exhaust passage 322, gas vent 321 sets up in the bottom of exhaust passage 322, compressed refrigerant gets into exhaust passage 322 through gas vent 321, quiet vortex dish 320 is connected with division board 330, and division board 330 cover is established in the top of quiet vortex dish 320, upper cover 110 cover is established in the top of division board 330, upper cover 110 is provided with blast pipe 111 in order to export the refrigerant of high pressure, be provided with amortization hole 331 on division board 330, amortization hole 331 intercommunication exhaust passage 322, as shown in fig. 3, the equivalent diameter of amortization hole 331 defines as D, the diameter of exhaust passage 322 defines as D 2, satisfy in the design:
When the scroll compressor is operated, high-pressure refrigerant is discharged from the discharge port 321 of the fixed scroll 320, and the high-pressure refrigerant is introduced into the discharge passage 322, and since the discharge passage 322 has a large diameter, it has an expanding and silencing effect, and then the refrigerant is introduced into the silencing hole 331 provided in the partition plate 330, since it is defined in design By limiting the diameter ratio of the silencing hole 331 to the exhaust passage 322, the flow area of the silencing hole 331 is smaller, on one hand, the acoustic impedance of the section can be increased, the propagation of high-frequency noise (with shorter wavelength) is reduced, and the silencing effect on the high-frequency noise is good; as shown in fig. 6, on the other hand, the flow direction of the refrigerant gas is changed, the high-frequency noise collides with the inner wall of the discharge passage 322 and the partition plate 330, so that the propagation of the high-frequency noise can be reduced, and the partition plate 330 has an attenuation effect on the pressure pulsation of the refrigerant, thereby helping to reduce the operation noise of the scroll compressor and improving the product performance and user experience.
As shown in fig. 8 to 10, other embodiments of the first aspect of the present utility model provide a scroll compressor, in which a partition plate 330 of the scroll compressor is provided with a plurality of small holes 332, the plurality of small holes 332 correspond to the discharge passage 322, and the plurality of small holes 332 are located above the discharge passage 322.
When the scroll compressor is operated, the movable scroll 310 and the fixed scroll 320 of the compression assembly 300 cooperate to compress refrigerant to obtain high-pressure refrigerant, the high-pressure refrigerant is discharged from the exhaust port 321 and passes through the exhaust channel 322 and then passes through the plurality of small holes 332 arranged on the partition plate 330, and the small holes 332 are utilized to inhibit air flow pulsation impact caused by exhaust and reduce noise, thereby being beneficial to reducing the operation noise of the scroll compressor and improving the product performance and the user experience.
It will be appreciated that the refrigerant will be dispersed into a plurality of small streams through the plurality of orifices 332 such that the resistance encountered by the refrigerant as it flows is increased, thereby achieving a noise reduction effect. In addition, a larger space is formed between the partition plate 330 and the upper cover 110, and small air flows enter the larger space to be rapidly diffused, so that impact on the upper cover 110 is reduced, and noise is reduced.
It can be understood that the plurality of small holes 332 may fall in the section of the exhaust channel 322, or may exceed the section of the exhaust channel 322, and the refrigerant passing through the exhaust channel 322 enters the plurality of small holes 332, so as to meet the requirement of exhaust, and the refrigerant enters between the partition plate 330 and the upper cover 110 and is output through the exhaust pipe arranged on the upper cover 110.
It is understood that the plurality of apertures 332 may be of the same cross-sectional area. The plurality of apertures 332 may also be of different cross-sectional areas, such as each aperture 332 having a different cross-sectional area, or portions of apertures 332 having the same cross-sectional area, while other portions of apertures 332 have other cross-sectional areas. Wherein the cross-sectional area of the aperture 332 may be a gauge including two gauges, three gauges, or more. The plurality of small holes 332 with cross-sectional areas of various specifications can eliminate noise of various frequencies, is more beneficial to reducing the running noise of the scroll compressor, and can design the cross-sectional areas and the number of the plurality of small holes 332 according to the exhaust detection data of the scroll compressor.
The equivalent diameter of the aperture 332 is defined as D, it being understood that when the aperture 332 is a circular apertureWherein d i is the diameter of the small holes 332, n i is the number of the corresponding small holes 332, i is the number of different holes, i=1, 2, 3 … k; when the aperture 332 is a non-circular aperture, then/>Wherein a i is the cross-sectional area of the aperture 332, where i is the number of different apertures, i=1, 2, 3 … k. Referring to fig. 10, the diameter of the exhaust port 321 is defined as D 1, and the diameter of the exhaust passage 322 is D 2, which satisfies the design: /(I)/>By limiting the range of equivalent diameters of the apertures 332, both the sound attenuation and exhaust requirements are met, preventing degradation of the scroll compressor performance.
It will be appreciated that referring to fig. 10, the axial length of the aperture 332 is defined as H, and is designed to satisfy: since the silencing effect of the small hole 332 is affected by the equivalent diameter and the axial length, the smaller the equivalent diameter and the larger the axial length, the better the effect, but the exhaust efficiency is affected at the same time, so that the equivalent diameter and the axial length are limited in a certain range, and by design, the following is satisfied: /(I) Not only can obtain better silencing effect, but also can meet the requirement of exhaust, and does not influence the exhaust quantity.
It will be appreciated that the number of apertures 332 also has an effect on the sound deadening effect, and that too few apertures 332 also affect the exhaust efficiency, so the number of apertures 332 is N, satisfying: 2.ltoreq.N.ltoreq.9, and D satisfies: d is more than or equal to 3.5mm. On the one hand, the number of the small holes 332 is limited, and on the other hand, the minimum flow area of the small holes 332 is limited, so that a better silencing effect can be achieved, and the exhaust requirement can be met.
It can be appreciated that the plurality of small holes 332 may be arranged in various manners, wherein the plurality of small holes 332 are distributed at intervals around the circumference of the exhaust channel 322, for example, the small holes 332 are distributed in a ring shape at equal intervals, and the plurality of small holes 332 are arranged more closely, so that not only a better silencing effect can be obtained, but also the exhaust requirement can be satisfied, and the exhaust capacity is not affected. Alternatively, a plurality of small holes 332 may be arranged at intervals around the circumference of the exhaust passage 322, each small hole 332 being spaced apart from the axis of the exhaust passage 322 by a different distance, and the distance between two adjacent small holes 332 being equal or different. Or alternatively, the plurality of apertures 332 may be distributed in two, three, or more rows about the axis of the exhaust passage 322.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (12)
1. A scroll compressor, comprising:
The fixed vortex disc is provided with an exhaust port and an exhaust channel at the upper end, and the exhaust port is arranged at the bottom of the exhaust channel;
The division board, connect in still vortex dish and cover are established still vortex dish's top, the division board is provided with the amortization hole, amortization hole intercommunication exhaust passage, the equivalent diameter of amortization hole is D, exhaust passage's diameter is D 2, satisfies:
2. The scroll compressor of claim 1, wherein the diameter of the discharge port is D 1, satisfying:
3. The scroll compressor of claim 1, wherein the sound deadening hole has an axial length H that satisfies:
4. A scroll compressor according to claim 3, wherein the distance between said sound deadening hole and said discharge port in the axial direction of said discharge passage is L, satisfying:
5. The scroll compressor of claim 1, wherein the axial length of the discharge passage is H i, satisfying: h i > D.
6. The scroll compressor of any one of claims 1 to 5, wherein a check valve is provided in the discharge passage, the check valve including a valve seat and a piston spool, the valve seat being connected to the stationary scroll, a guide inner hole for guiding movement of the piston spool being provided in the valve seat, and the sound deadening hole being located above the valve seat.
7. The scroll compressor of claim 6, wherein an axis of the valve seat coincides with an axis of the sound deadening hole, and a cross-sectional area of the valve seat is greater than a cross-sectional area of the sound deadening hole.
8. The scroll compressor of claim 6, wherein the fixed scroll includes a back pressure plate provided at a side of the fixed scroll adjacent to the separation plate, the back pressure plate having the discharge passage provided therein, and the valve seat provided in the discharge passage.
9. The scroll compressor of any one of claims 1 to 5, wherein a pressure relief valve plate and a stopper are provided in the discharge passage, the pressure relief valve plate being connected to the fixed scroll and covering the discharge port, the stopper being connected to the fixed scroll and being located above the pressure relief valve plate, the sound deadening hole being located above the stopper.
10. The scroll compressor of claim 9, wherein at least one of the discharge port and the sound deadening hole is offset from an axis of the discharge passage.
11. The scroll compressor of claim 1, wherein the cross-sectional shape of the sound deadening hole is circular, square, or kidney-shaped.
12. Refrigeration device, characterized by comprising a scroll compressor according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322779856.0U CN220850018U (en) | 2023-10-16 | 2023-10-16 | Scroll compressor and refrigeration equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322779856.0U CN220850018U (en) | 2023-10-16 | 2023-10-16 | Scroll compressor and refrigeration equipment |
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| CN220850018U true CN220850018U (en) | 2024-04-26 |
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| CN202322779856.0U Active CN220850018U (en) | 2023-10-16 | 2023-10-16 | Scroll compressor and refrigeration equipment |
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| CN (1) | CN220850018U (en) |
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