CN108302008A - Single-chamber muffler and refrigerator - Google Patents
Single-chamber muffler and refrigerator Download PDFInfo
- Publication number
- CN108302008A CN108302008A CN201711308449.4A CN201711308449A CN108302008A CN 108302008 A CN108302008 A CN 108302008A CN 201711308449 A CN201711308449 A CN 201711308449A CN 108302008 A CN108302008 A CN 108302008A
- Authority
- CN
- China
- Prior art keywords
- conduit
- muffler
- vacuum pump
- cavity
- lower seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 25
- 238000010586 diagram Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- F04B39/0083—Pulsation and noise damping means using blow off silencers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
Present invention is disclosed a kind of mufflers, it include the hollow cavity being enclosed jointly by the first bottom surface, the second bottom surface and side wall, side wall connects the first bottom surface and the second bottom surface, first bottom surface configures air inlet, second bottom surface configures gas outlet, and air inlet and cavity is connected in the first conduit, and cavity and gas outlet is connected in the second conduit, the distal end of first conduit is close to the second bottom surface, and the proximal end of the second conduit is close to the first bottom surface.
Description
Technical field
The invention belongs to refrigeration equipment noise reduction technology fields, and in particular to a kind of muffler reducing vacuum pump noise.
Background technology
The fresh-keeping and temperature, humidity of food and gaseous environment are closely related in refrigerator.Wherein, oxygen is to cause food spoilage
An important factor for rotten, bacterial reproduction.Can significantly it be prolonged to control the ratio of nitrogen to oxygen of refrigerator by the oxygen for aspirating indoor
The fresh keeping time of long food.
Oxygen can be extracted out by vacuum pump out of particular space, and is discharged into outside refrigerator.But gas is as one
Noise transmission in babinet to refrigerator exterior space it is dry to be formed noise by the medium of kind conduction sound during discharge
It disturbs.
Invention content
The purpose of the present invention is to provide a kind of mufflers, to solve the problems, such as that vacuum pump noise exports.
For achieving the above object, the present invention provides a kind of muffler, including by the first bottom surface, the second bottom surface and side wall
The hollow cavity being enclosed jointly, side wall connect the first bottom surface and the second bottom surface, and the first bottom surface configures air inlet, the second bottom
Face configures gas outlet, and air inlet and cavity is connected in the first conduit, and cavity and gas outlet, the distal end of the first conduit is connected in the second conduit
Close to the second bottom surface, the proximal end of the second conduit is close to the first bottom surface.
As being further improved for an embodiment of the present invention, cavity is cylinder.
As being further improved for an embodiment of the present invention, the length of the first conduit and the second conduit is sound to be canceled
The quarter-wave of frequency.
Another aspect of the present invention, provides a kind of muffler, including shell, and shell is enclosed hollow cavity, shell
Proximal end configure air inlet, the distal end of shell configures gas outlet, and air inlet and cavity is connected in the first conduit, and chamber is connected in the second conduit
Body and gas outlet, the distal end of the first conduit is close to the second bottom surface, and the proximal end of the second conduit is close to the first bottom surface.
As being further improved for an embodiment of the present invention, the length of the first conduit and the second conduit is sound to be canceled
The quarter-wave of frequency.
Another aspect of the present invention provides a kind of refrigerator vacuum subassembly, including accommodates the sealed box body of vacuum pump, sealing
Box body includes upper seal and lower seal, and upper seal can be fastened with lower seal to limit the accommodating chamber of sealing；It accommodates
Intracavitary places vacuum pump；Vacuum pump is connect with as above any muffler；The junction of upper seal and lower seal is set
Set notch section；Vacuum subassembly further includes sealing element, sealing element include integrally formed annulus and can buckling parts, annulus with it is upper
The fit depressions of seal and lower seal, can buckling parts be made of two H-type components being flexibly connected, two H-type components
The installation condition of formation and notch section cooperation can be fastened each other, and H-type component has parallel the first wall and the second arm, Yi Jilian
The interconnecting piece of the first arm and the second arm is connect, the edge of notch section can be clamped therebetween for the first arm and the second arm, and interconnecting piece has
Curved surfaces, when in mounted state, curved surfaces are enclosed hollow cavity jointly.
As being further improved for an embodiment of the present invention, several tabular components of configuration, tabular component are set in accommodating chamber
It is placed between vacuum pump and the side wall of sealed box body with sound insulation.
As being further improved for an embodiment of the present invention, upper seal configures several supporting pieces, and supporting piece is upper close
Feng Tiyu lower seal lids are connected to when closing at the top of tabular component, and one end that supporting piece is contacted with tabular component is configured with step
The top surface of portion, stage portion top surface and tabular component abuts against, and the side of stage portion side and tabular component abuts against.
As being further improved for an embodiment of the present invention, lower seal configures several ribs, and rib is arranged with sidewall spacers
To limit the limiting slot of tabular component, lower seal configures several guide grooves, and guide groove vertically extends to guide plate
Component.
To achieve the above object, an embodiment of the present invention provides a kind of refrigerator, including vacuum subassembly, vacuum subassembly include
The sealed box body for accommodating vacuum pump further includes any muffler as above, and the outlet side of vacuum pump is connect with muffler.
Compared with prior art, refrigerator vacuum pump muffler provided by the invention, is set by the arrangement of single-chamber body and conduit
Meter realizes the decaying of specific frequency sound wave, reduces acoustic energy, pointedly prevents what vacuum pump and babinet from generating can be generated to human ear
The low frequency noise of interference is conducted to outside babinet.
Description of the drawings
Fig. 1 is the structural schematic diagram of the sealed box body of an embodiment of the present invention；
Fig. 2 is the block diagram inside and outside the sealed box body of an embodiment of the present invention；
Fig. 3 is the vertical view of the sealed box body of an embodiment of the present invention；
Fig. 4 is the exploded perspective view of the sealed box body of an embodiment of the present invention；
Fig. 5 is the front view of the sealed box body of an embodiment of the present invention；
Fig. 6 is the vertical view of sealing element in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of sealing element in an embodiment of the present invention；
Fig. 8 is the vertical view of lower seal in an embodiment of the present invention；
Fig. 9 is the scheme of installation of upper seal and metallic plate in an embodiment of the present invention；
Figure 10 is the structural schematic diagram of lower seal in an embodiment of the present invention；
Figure 11 is the exploded perspective view of Figure 10；
Figure 12 is the perspective diagram of muffler in an embodiment of the present invention；
Figure 13 is the perspective diagram of muffler in a further embodiment of this invention；
Figure 14 is the structural schematic diagram of a further embodiment of this invention intermediate pump and muffler；
Figure 15 is the structural schematic diagram of muffler in a further embodiment of this invention；
Figure 16 is the perspective view of muffler in a further embodiment of this invention；
Figure 17 is the Longitudinal cross section schematic of muffler in a further embodiment of this invention.
Specific implementation mode
Below with reference to specific implementation mode shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
The word of described expression position and direction in the present invention, is using vacuum pump as reference, close to the one of vacuum pump
End is proximal end, and one end far from vacuum pump is distal end.
Join Fig. 1 to Fig. 3, in an embodiment of the present invention, vacuum pump 100 is contained in sealed box body 200, passes through air inlet
Pipe 210 and escape pipe 220 are connected with ambient atmos.Wherein, the air inlet pipeline of 210 proximal end of air inlet pipe connection vacuum pump 100, distal end
With the fresh-keeping space in refrigerator compartment（It is not shown）It is connected；220 proximal end of escape pipe is connected to the outlet pipe of vacuum pump 100, far
It holds and extends to the outside of sealed box body 200.Sealed box body 200 has blocked the gas connection of vacuum pump 100 and installation environment, reach every
The effect of sound.Fresh-keeping space can be an independent compartment, or be located at the closing of compartment part or semi-enclosed space.
Sealed box body 200 includes upper seal 230 and lower seal 240.Upper seal 230 includes integrally formed roof
And side wall, the common accommodating chamber for limiting a lower ending opening, lower seal 240 include integrally formed bottom wall and side wall, common limit
The accommodating chamber of a fixed upper end opening, the opening of upper and lower seal 240 match, mutually can be interlocked to form the appearance of vacuum pump 100
Receive space.
Preferably, upper seal 230 and lower seal 240 are plastic material.
Join Fig. 4, sealing element is set between upper seal 230 and lower seal 240.The side wall lower edge shape of upper seal 230
At the first groove, the side wall upper limb of lower seal 240 forms the second groove, the first groove and the second fit depressions, is formed close
The mounting groove of seal 250 so may insure the air-tightness after seal 230 and lower seal 240 fasten, prevent sound from
The splicing gap of sealed box body 200 is spread out of.Sealing ring 250 is ring-type, has circular cross-section, uses elastic material, be sheathed on
Installation amount of tension when in mounting groove is 2-5%, when upper seal 230 and the fastening of lower seal 240, is applied to sealing ring 250
The decrement of pressure initiation 20-30%, so ensures sealing effect.
Fig. 4 and Fig. 5 shows joint setting notch section 251 of the seal 230 with lower seal 240, for the company of wearing
Connect the wire rod of vacuum pump 100.In order to ensure the leakproofness of sealed box body 200, the sealing ring that can be fastened is set in notch section 251
253.The sealing ring 253 uses elastic material, is integrally formed with sealing ring 250.
Join Fig. 6 and Fig. 7, sealing ring 253 is made of two H-type components being flexibly connected, and H-type component can be interlocked each other
Form the installation condition coordinated with notch section 251.H-type component has the first arm 2531 and the second arm 2532 parallel to each other, with
And the interconnecting piece 2533 of connection the first arm 2531 and the second arm 2532.First arm 2531 and the second arm 2532 can coordinate jointly by
The box side wall clamping at 251 edge of notch section therebetween, prevents sealing ring 253 from falling off from notch section 251.Interconnecting piece 2533, which passes through, to be lacked
Oral area connects the first arm 2531 and the second arm 2532.Interconnecting piece 2533 has the curved surfaces of recess.H-type component fastens each other
When, curved surfaces are enclosed hollow cavity jointly, so that wire rod passes through.
The case where notch section 251 are passed through for more wire rods, if passing through notch section 251 as a whole, since wire rod is cut
Face is circle, and the gap formed between wire rod can reduce leakproofness.To this situation, the curved surfaces of interconnecting piece 2533 can be wave
Shape（It is not shown）, to form multiple hollow cavities independent of each other in installation condition, preferably seal the wire rod of circular cross-section.
Join Fig. 8, several metallic plates 260 is set in sealed box body 200, metallic plate 260 is set to vacuum pump 100 and seal box
Between 200 side wall of body.Since 260 density of metallic plate is high, passing through for sound is caused to obstruct, the effect of sound insulation and noise reduction can be played
Fruit.
Preferably, metallic plate 260 is aluminium sheet, steel plate or galvanized sheet.
Join Fig. 8 and Fig. 9, in an embodiment of the present invention, metallic plate 260 is two panels, and gluing, sealing box body 200 is opposite respectively
Two walls setting.Position limiting structure is respectively set with fixed metal plate 260a, 260b in lower seal 240 and upper seal 230.
Fig. 8 shows that the first rib 242 of d parallel with side wall 241 and at a distance is arranged in the bottom wall of lower seal 240, with
And second rib 244 parallel and D at a distance with side wall 243, wherein side wall 241 is opposite with side wall 243, and d is metallic plate
The thickness of 260a, D are the thickness of metallic plate 260b.The interval of first rib 242 and side wall 241 forms the limit of metallic plate 260a
The interval of slot, the second rib 244 and side wall 243 forms the limiting slot for limiting metallic plate 260b, limits metallic plate 260a, 260b respectively
Displacement in the horizontal direction.
Join Fig. 8 and Figure 10, lower seal 240 also sets up several guide grooves 245, and guide groove 245 vertically extends,
Direction of insertion when extending direction is installed with metallic plate 260 is consistent, and guiding metallic plate 260 is installed to preset position.
Fig. 9 shows that several supporting pieces 231 are arranged in seal 230.When upper seal 230 and the lid of lower seal 240 close,
Supporting piece 231 is just connected to 260 top of metallic plate.Stage portion 2311 is arranged in one end that supporting piece 231 is contacted with metallic plate 260,
The space that inverted u-shaped is formed with the side wall for closing seal 230, to accommodate 260 top of metallic plate.The top surface of stage portion 2311 with
The top surface of metallic plate 260 abuts against, and can limit its displacement in vertical direction, the side of the side and metallic plate 260 of stage portion
Face abuts against, and can limit its displacement in the horizontal direction.
Metallic plate 260 is bonded setting with 200 side wall of sealed box body, and the vibrations of vacuum pump 100 may cause metallic plate 260
Resonance, the wall for forming new noise and sealed box body 200 conduct outward.Above-mentioned position limiting structure considered critical metallic plate 260
Position, avoid resonance generate noise.
In an embodiment of the present invention, one of upper seal 230 or lower seal 240 or upper seal 230 are close under
Notch section 246 is arranged in the joint portion of envelope body 240 jointly, to wear tracheae component.
Figure 10 and Figure 11 illustrates the situation that notch section 246 is set to lower seal 240.Notch section 246 is opened in
Lower seal 240 is close to the side wall of upper limb, and groove is arranged in 246 periphery of notch section, to accommodate sealing unit 270, it is ensured that seal box
The air-tightness of body 200.Sealing unit 270 is the cyclic structure of elastic material.
Tracheae component includes integrally formed air inlet pipe 210, escape pipe 220 and substrate.Air inlet pipe 210 and escape pipe 220
It is arranged on substrate, the outer rim of substrate is matched with 246 shape of notch section.Groove is arranged in substrate outer edge, with 246 periphery of notch section
Fin match, substrate clamping can be fixed on by the cooperation of the two by notch section, it is single that the gap location of the two is embedded sealing
Member 270.
Accommodating chamber spaces compact residing for vacuum pump 100 is unfavorable for the connection of gas piping and wears operation.By by gas
Tube assembly is set as embedding structure, can be easily embedded at after completing its connection with vacuum pump 100 in notch section 246 solid
It is fixed, then fasten upper and lower seal 240 and complete assembling.
The gas of escape pipe 220 is through noise reduction heel row to outside refrigerator.Join Fig. 1 and Figure 12, in an embodiment of the present invention, very
Sky pump 100 is connect by escape pipe 220 with muffler 300.Muffler 300 includes shell.Shell is by the first bottom positioned at proximal end
Face 310, the second bottom surface 320 positioned at distal end and the side wall 330 of the first bottom surface 310 of connection and the second bottom surface 320 enclose jointly, shape
At tubular hollow cavity.The air inlet 340 that 300 proximal end of muffler setting one is connect with escape pipe 220, distal end setting one
Gas outlet 350.In cavity in an axial direction, i.e., several chambers are separated into, and at least from air inlet 340 to the direction of gas outlet 350
Section chambers volume is different, with the corresponding sound for eliminating different frequency range.Illustratively, each chamber volume is gradually reduced in an axial direction.
Preferably, chamber is three, and first chamber 361, intermediate cavity 362 and second chamber are followed successively by from proximate
363.First chamber 361 is adjacent with the first bottom surface 310, and second chamber 363 is adjacent with the second bottom surface 320, and intermediate cavity 362 is located at
Between first chamber 361 and second chamber 363.Air inlet 340 and intermediate cavity 362, the second conduit is connected in first conduit 371
372 conducting intermediate cavities 362 and second chamber 363, the conducting first chamber 361 of third conduit 373 and second chamber 363, the 4th
First chamber 361 and gas outlet 350 is connected in conduit 374.
Intermediate cavity 362 can be multiple.
The shape of muffler shell is not limited to cylindrical, may be arranged as cuboid-type or irregular shape.
The sound wave that vacuum pump 100 is spread out of passes through the first conduit 371, the second conduit 372, third conduit 373 successively with air-flow
And the 4th conduit 374, it reflects, roll over successively in the different intermediate cavity 362 of volume, second chamber 363 and first chamber 361
It penetrates, energy is gradually cleared up.Wherein, first chamber 361, intermediate cavity 362, second chamber 363 correspond to noise reduction frequency be it is low,
Medium, high frequency.Moreover, narrow internal diameter is arranged in the first conduit 371, the second conduit 372, third conduit 373 and the 4th conduit 374,
Portion of energy is converted into thermal energy and is resolved when sound wave being made to pass through.
Muffler is so arranged, make sound wave in muffler by stroke as long as possible to cut down energy, and not
With realizing refraction in chamber and reflecting, the smaller muffler axial distance of use realizes better erasure effect.
Join Figure 13, in still another embodiment of the process, muffler 400 includes shell.Shell is by the first bottom positioned at proximal end
Face 410, the second bottom surface 420 positioned at distal end and the side wall 430 of the first bottom surface 410 of connection and the second bottom surface 420 enclose jointly, shape
At tubular hollow cavity.Single chamber is formed in cavity.What 400 proximal end of muffler setting one was connect with escape pipe 220
A gas outlet 450 is arranged in air inlet 440, distal end.First conduit 471 conducting air inlet 440 and chamber, and the first conduit 471
Distal end is close to the second bottom surface 420.Second conduit 472 is connected chamber and gas outlet 450, and the proximal end of the second conduit 472 is close to the
One bottom surface 420.
Sound wave is gradually cleared up in chamber internal reflection, refraction, energy.The length of first conduit 471 and the second conduit 472 is mesh
Audio quarter-wave, with it is specific eliminate purpose audio sound.Preferably, purpose audio is 1000Hz.
Narrow internal diameter is arranged in first conduit 471 and the second conduit 472, and portion of energy is converted into thermal energy when sound wave being made to pass through
It is resolved.
In noise through 100 gas conduction of vacuum pump, high frequency noise human ear can not be heard, the main of interference is generated to user
For low frequency noise.The present embodiment can pointedly eliminate low frequency noise, keep muffler structure simpler.
Join Figure 14 and Figure 15, in yet another embodiment of the invention, muffler 500 is set to inside sealed box body 200, connection
The outlet pipe of vacuum pump 100 and escape pipe 220.Muffler 500 includes shell, and shell is enclosed a hollow cavity, is used
In the refraction and reflection of sound wave.The hollow cavity includes a cylindrical chamber 510 and a rectangular fluid chamber 520, wherein cylinder
One of bottom surface of chamber 510 is connect with a face 521 of rectangular fluid chamber 520, cylindrical chamber 510 and rectangular fluid chamber 520
Inside be conducted.
The basal diameter of cylindrical chamber 510 is less than or equal to the length of side of 520 joint face 521 of rectangular fluid chamber.
Air inlet 540 and gas outlet 550, air inlet 540 and gas outlet 550 is arranged in the cylindrical chamber 510 of muffler 500
Setting at an angle occurs in this course so that gas enters after hollow cavity reaches gas outlet by reflecting and refract to
Energy loss achievees the purpose that noise reduction.
Preferably, air inlet 540 is set to the bottom surface 511 of cylindrical chamber 510, and gas outlet 550 is set to cylinder body cavity
The side of room 510.
Air inlet 540 is identical as the internal diameter of gas outlet 550, so that the pressure balance of two ports.
The present embodiment makes sound wave that irregular reflection and refraction occur by the variation of hollow cavity shape, and energy is disappeared
Solution.
Join Figure 16 and Figure 17, in still another embodiment of the process, muffler 600 includes shell, and shell is enclosed in one
Cavity body.The proximal end of muffler 600 is arranged air inlet 640, and distal end is arranged gas outlet 650, air inlet 640 and gas outlet 650 it
Between be connected to by the conduit 670 being set in shell.Conduit 670 forms sleeve structure with shell.Filled media is to inhale in conduit 670
Quiet down the vibrational energy of wave, weakens the sound intensity.Further, medium is silencing cotton.
670 side wall of conduit opens up several through-holes 680, is connected so that conduit 670 is realized with cavity.Through-hole 680 is along conduit 670
The circumferentially-spaced distribution of side wall, i.e. conduit 670 open up through-hole to multiple directions.
Preferably, shell is by the first bottom of the first bottom surface 610 positioned at proximal end, the second bottom surface 620 positioned at distal end and connection
The side wall 630 of face 610 and the second bottom surface 620 is enclosed cylindrical hollow cavity jointly.Air inlet is arranged in first bottom surface 610
640, gas outlet 640 is arranged in the second bottom surface 620.
Preferably, through-hole diameter is less than 1mm.
Preferably, the cavity that shell is enclosed is separated into several chambers arranged from proximate.
Sound wave from vacuum pump 100 enters conduit 670 from air inlet 640, and gas outlet 650 is reached after medium noise reduction,
The sound wave of specific frequency is decayed, and the sound intensity weakens.During this, 680 diffraction of acoustic wave segment via through holes enters cavity, in sky
Intracavitary further decays through superrefraction and reflection.
Muffler so set, binding medium noise reduction and cavity noise reduction mode, and using aperture realize sound wave diffraction,
Multipath cuts down the sound intensity.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiment of understanding.
The series of detailed descriptions listed above only for the present invention feasible embodiment specifically
Bright, they are all without departing from equivalent implementations made by technical spirit of the present invention not to limit the scope of the invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of muffler, which is characterized in that include be enclosed jointly by the first bottom surface, the second bottom surface and side wall it is hollow
Cavity, side wall connect the first bottom surface and the second bottom surface, and the first bottom surface configures air inlet, and the second bottom surface configures gas outlet, and first leads
Air inlet and cavity is connected in pipe, and cavity and gas outlet is connected in the second conduit, and the distal end of first conduit is close to the second bottom surface, institute
The proximal end of the second conduit is stated close to the first bottom surface.
2. muffler according to claim 1, which is characterized in that the cavity is cylinder.
3. muffler according to claim 1, which is characterized in that the length of first conduit and the second conduit is to wait disappearing
Except the quarter-wave of sound frequency.
4. a kind of muffler, including shell, which is characterized in that the shell is enclosed hollow cavity, the shell it is close
The distal end of end configuration air inlet, the shell configures gas outlet, and air inlet and cavity is connected in the first conduit, and chamber is connected in the second conduit
Body and gas outlet, the distal end of first conduit is close to the second bottom surface, and the proximal end of second conduit is close to the first bottom surface.
5. muffler according to claim 4, which is characterized in that the length of first conduit and the second conduit is to wait disappearing
Except the quarter-wave of sound frequency.
6. a kind of refrigerator vacuum subassembly, including accommodate the sealed box body of vacuum pump, which is characterized in that
The sealed box body includes upper seal and lower seal, and the upper seal can fasten close to limit with lower seal
The accommodating chamber of envelope；
Vacuum pump is placed in the accommodating chamber；
The vacuum pump is connect with muffler according to any one of claims 1 to 5；
Notch section is arranged in the junction of the upper seal and lower seal；
The vacuum subassembly further includes sealing element, the sealing element include integrally formed annulus and can buckling parts, the ring
The fit depressions in shape portion and upper seal and lower seal, it is described can buckling parts be made of two H-type components being flexibly connected,
Two H-type components can fasten the installation condition of formation and notch section cooperation each other, and the H-type component has the first parallel wall
With the second arm, and the interconnecting piece of connection the first arm and the second arm, first arm and the second arm can be by the notch sections
Edge is clamped therebetween, and the interconnecting piece has curved surfaces, and when in mounted state, the curved surfaces are enclosed jointly
Hollow cavity.
7. refrigerator vacuum subassembly according to claim 6, which is characterized in that several plate structures of configuration in the accommodating chamber
Part, tabular component are set between vacuum pump and the side wall of sealed box body with sound insulation.
8. refrigerator vacuum subassembly according to claim 7, which is characterized in that the upper seal configures several supporting pieces,
The supporting piece is connected to when upper seal and lower seal lid close at the top of tabular component, and the supporting piece connects with tabular component
Tactile one end is configured with stage portion, and the top surface of the stage portion top surface and tabular component abuts against, the stage portion side and plate
The side of shape component abuts against.
9. refrigerator vacuum subassembly according to claim 7, which is characterized in that the lower seal configures several ribs, rib with
The sidewall spacers setting is to limit the limiting slot of tabular component, and the lower seal configures several guide grooves, and guide groove is along perpendicular
Histogram is to extension to guide tabular component.
10. a kind of refrigerator, including vacuum subassembly, the vacuum subassembly includes the sealed box body for accommodating vacuum pump, and feature exists
In further including muffler according to any one of claims 1 to 5, the outlet side of the vacuum pump is connect with the muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308449.4A CN108302008B (en) | 2017-12-11 | 2017-12-11 | Refrigerator vacuum assembly and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308449.4A CN108302008B (en) | 2017-12-11 | 2017-12-11 | Refrigerator vacuum assembly and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108302008A true CN108302008A (en) | 2018-07-20 |
| CN108302008B CN108302008B (en) | 2021-03-23 |
Family
ID=62869938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711308449.4A Active CN108302008B (en) | 2017-12-11 | 2017-12-11 | Refrigerator vacuum assembly and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302008B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019114625A1 (en) * | 2017-12-11 | 2019-06-20 | 青岛海尔股份有限公司 | Vacuum pump vent pipe silencer and refrigerator having same |
| WO2019114624A1 (en) * | 2017-12-11 | 2019-06-20 | 青岛海尔股份有限公司 | Refrigerator |
| WO2019114627A1 (en) * | 2017-12-11 | 2019-06-20 | 青岛海尔股份有限公司 | Cavity silencer and refrigerator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138362A (en) * | 1994-11-09 | 1996-12-18 | 华纳斯普瑞泰克公司 | Turbine sound reducer |
| CN101886624A (en) * | 2010-07-05 | 2010-11-17 | 苏州盟通利机电设备有限公司 | Vacuum pump without pressure difference |
| CN103195549A (en) * | 2013-04-28 | 2013-07-10 | 广西工学院 | Silencer clapboard and silencer |
| CN203271883U (en) * | 2013-04-28 | 2013-11-06 | 广西工学院 | Silencer separating board and silencer |
| CN103644699A (en) * | 2013-12-06 | 2014-03-19 | 南京创维家用电器有限公司 | Vacuum drawer and refrigerator |
| CN106593820A (en) * | 2016-12-02 | 2017-04-26 | 青岛海尔股份有限公司 | Sucking pump assembly and refrigerating and freezing device |
| CN206290403U (en) * | 2016-12-02 | 2017-06-30 | 青岛海尔股份有限公司 | Pumping pump group part and refrigerating device |
-
2017
- 2017-12-11 CN CN201711308449.4A patent/CN108302008B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138362A (en) * | 1994-11-09 | 1996-12-18 | 华纳斯普瑞泰克公司 | Turbine sound reducer |
| CN101886624A (en) * | 2010-07-05 | 2010-11-17 | 苏州盟通利机电设备有限公司 | Vacuum pump without pressure difference |
| CN103195549A (en) * | 2013-04-28 | 2013-07-10 | 广西工学院 | Silencer clapboard and silencer |
| CN203271883U (en) * | 2013-04-28 | 2013-11-06 | 广西工学院 | Silencer separating board and silencer |
| CN103644699A (en) * | 2013-12-06 | 2014-03-19 | 南京创维家用电器有限公司 | Vacuum drawer and refrigerator |
| CN106593820A (en) * | 2016-12-02 | 2017-04-26 | 青岛海尔股份有限公司 | Sucking pump assembly and refrigerating and freezing device |
| CN206290403U (en) * | 2016-12-02 | 2017-06-30 | 青岛海尔股份有限公司 | Pumping pump group part and refrigerating device |
Non-Patent Citations (1)
| Title |
|---|
| 高红武: "《噪声控制技术（第2版）》", 30 June 2009, 武汉理工大学 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019114625A1 (en) * | 2017-12-11 | 2019-06-20 | 青岛海尔股份有限公司 | Vacuum pump vent pipe silencer and refrigerator having same |
| WO2019114624A1 (en) * | 2017-12-11 | 2019-06-20 | 青岛海尔股份有限公司 | Refrigerator |
| WO2019114627A1 (en) * | 2017-12-11 | 2019-06-20 | 青岛海尔股份有限公司 | Cavity silencer and refrigerator |
| US11549499B2 (en) | 2017-12-11 | 2023-01-10 | Qingdao Haier Co., Ltd. | Cavity muffler and refrigerator |
| US11668510B2 (en) | 2017-12-11 | 2023-06-06 | Qingdao Haier Co., Ltd. | Refrigerator |
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| CN108302008B (en) | 2021-03-23 |
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