CN208669692U - Spiral case, blower and refrigeration equipment - Google Patents
Spiral case, blower and refrigeration equipment Download PDFInfo
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- CN208669692U CN208669692U CN201820939899.7U CN201820939899U CN208669692U CN 208669692 U CN208669692 U CN 208669692U CN 201820939899 U CN201820939899 U CN 201820939899U CN 208669692 U CN208669692 U CN 208669692U
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- volute tongue
- shape portion
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Abstract
The utility model discloses a kind of spiral case, blower and refrigeration equipment, the spiral case includes: snail shape portion and volute tongue.There is the reception room for accommodating impeller in snail shape portion, the axis in snail shape portion extends along the longitudinal direction, there is the first ventilation opening and the second ventilation opening in snail shape portion, axis direction of second ventilation opening along snail shape portion is arranged, radial direction of second ventilation opening along snail shape portion is arranged, and second ventilation opening is located on the upside of snail shape portion, first ventilation opening is connected to the reception room with second ventilation opening；The volute tongue is set to the left side of second ventilation opening and extends along the longitudinal direction, and the volute tongue tilts 3 ° to 10 ° relative to the axis in snail shape portion.According to the volute tongue of the utility model embodiment, airflow efficiency can be improved to a certain extent, and reduces pneumatic noise.
Description
Technical field
The utility model designs air stream drives equipment technical field, is specifically designed a kind of spiral case, the blower with the spiral case
And the refrigeration equipment with the blower.
Background technique
Spiral case primarily serves the effect of water conservancy diversion in centrifugal blower, and the air-flow that impeller is collected is directed to the outlet of spiral case,
Air-flow transfer pressure in the middle part of flow process is converted into static pressure.Spiral case is periodically patted at volute tongue by impeller, and outlet
The influence of airflow direction, air-flow more disorder, air velocity is smaller, and static pressure is larger, and there are apparent Secondary Flows, and in its circumferential direction
Gradually weaken position.Under big flow operating condition, there are vortexes, larger to flow effect at volute outlet, at volute tongue influence compared with
It is small；Under low flow rate condition, volute tongue gap is larger by vortes interference, and there are serious reflux, and flows severe exacerbation with air-flow.
Utility model content
The utility model first aspect is to propose a kind of spiral case, can improve airflow efficiency to a certain extent.
The utility model second aspect is to provide a kind of blower with the spiral case.
The utility model third aspect is to provide a kind of refrigeration equipment with the blower.
According to the spiral case of the utility model first aspect embodiment, comprising: snail shape portion and volute tongue.The snail shape has in portion
For accommodating the reception room of impeller, the axis in snail shape portion extends along the longitudinal direction, has the first ventilation in snail shape portion
Mouth and the second ventilation opening, axis direction of second ventilation opening along snail shape portion are arranged, and second ventilation opening is described in
The radial direction in snail shape portion is arranged, and second ventilation opening is located at snail shape portion upside, first ventilation opening and described
Second ventilation opening is connected to the reception room；The volute tongue is set to the left side of second ventilation opening and extends along the longitudinal direction,
And the volute tongue tilts 3 ° to 10 ° relative to the axis in snail shape portion.
According to the volute tongue of the utility model embodiment, airflow efficiency can be improved to a certain extent.
In addition, can also have the following additional technical features: according to the spiral case of the utility model above-described embodiment
In one embodiment of the utility model, the volute tongue relative to snail shape portion tilt angle at 3.72 °
To in the range of 7.11 °.
In one embodiment of the utility model, on direction from front to back, first ventilation opening is set to described
On the antetheca in snail shape portion, the volute tongue is tilted to the left on direction from front to back relative to the axis in snail shape portion.
In one embodiment of the utility model, the surface of the volute tongue is the smooth surface vertically extended.
In one embodiment of the utility model, the volute tongue is intercepted with the plane of the axis perpendicular to snail shape portion
Surface formed volute tongue molded line, the volute tongue molded line be it is arc-shaped.
In one embodiment of the utility model, after the radius of the volute tongue molded line on front side of the volute tongue is less than the volute tongue
The radius of the volute tongue molded line of side；Or the radius of the volute tongue molded line on front side of the volute tongue is less than the volute tongue molded line on rear side of the volute tongue
1 millimeter to 4 millimeters of radius；Or the radius of the volute tongue molded line on front side of the radius of the volute tongue molded line on rear side of the volute tongue and the volute tongue
Difference and snail shape portion be suitable for storage impeller outer diameter ratio in the range of 0.5% to 2%.
In one embodiment of the utility model, the radius of the volute tongue molded line of the volute tongue is at 11 millimeters to 14 millimeters
In range；Or the radius of the volute tongue molded line of the volute tongue is arrived with snail shape portion suitable for the ratio 5% of the outer diameter of the impeller of storage
In the range of 7%.
In one embodiment of the utility model, the surface of the volute tongue and the inner peripheral surface in snail shape portion are tangent.
In one embodiment of the utility model, the spiral case is intercepted with the plane of the axis perpendicular to snail shape portion
The surface of Shi Suoshu volute tongue and the inner peripheral surface in snail shape portion are tangent.
In one embodiment of the utility model, the right edge and the snail shape portion right side wall of second ventilation opening
Inner surface flushes in the up-down direction.
In one embodiment of the utility model, at least part on the front edge of second ventilation opening is from lower past
On direction on gradually turn forward to form tilting section.
In one embodiment of the utility model, after the tilting section is located at the front edge of second ventilation opening
Side.
In one embodiment of the utility model, the width dimensions of the tilting section in left-right direction are at 8 millimeters to 40
In the range of millimeter；Or the width dimensions of the tilting section in left-right direction and snail shape portion are suitable for the outer diameter of the impeller of storage
Ratio in the range of 4.40% to 22%.
In one embodiment of the utility model, the spiral case further include: air dam, the bottom of the air dam and institute
The week of the second ventilation opening is stated along being connected, so that the air dam is connected to second ventilation opening, and is limited in the air dam
The cavity for forming third venting mouth is opened wide in side out.
In one embodiment of the utility model, the front side of the air dam, which is opened wide, forms the third venting mouth.
In one embodiment of the utility model, the air dam includes: bottom plate and side plate, the bottom plate and described the
The front edge of two ventilation openings be connected with left margin be connected and to far from second ventilation opening direction horizontal extension；The side plate
At least part in opening forward and along the U-shaped board that the direction around second ventilation opening extends, and the side plate is along upper
Lower direction extends, and the side plate and the bottom plate cooperatively form the cavity.
In one embodiment of the utility model, the lower edge of the side plate is successively with the right of the bottom plate along, institute
State the right edge of the second ventilation opening, a left side for the back edge of second ventilation opening, the back edge of the bottom plate and the bottom plate
Edge is connected.
In one embodiment of the utility model, it is logical that the width dimensions of the bottom plate in left-right direction are greater than described second
The width dimensions of air port in left-right direction.
In one embodiment of the utility model, the width dimensions on front side of the air dam in left-right direction are greater than described
The width dimensions of the rear side of air dam in left-right direction, and in projection in left-right direction, the projection of the air dam is fallen in
The rear side of the air dam.
In one embodiment of the utility model, at least part of the air dam and the snail shape portion one at
Type.
In one embodiment of the utility model, snail shape portion includes: hub disk, shroud and coaming plate.Between the shroud
Separatedly it is set to before the hub disk；The coaming plate surrounds the annular for having opening in top, the coaming plate and the shroud
It is connected with the hub disk, and the coaming plate limits the reception room between the shroud and the hub disk, on the coaming plate
The opening in portion combines to form second ventilation opening with the shroud and hub disk, and first is logical described in projection along the longitudinal direction
Air port is fallen on the inside of the coaming plate.
According to the blower of the utility model second aspect embodiment, comprising: spiral case and impeller.The spiral case is according to aforementioned
Spiral case；The impeller is rotatably arranged in snail shape portion.
In one embodiment of the utility model, the blade of the impeller is non-uniform thickness curved blade.
According to the refrigeration equipment of the utility model third aspect embodiment, including blower above-mentioned.
Detailed description of the invention
Fig. 1 is the schematic diagram of the spiral case of the utility model one embodiment.
Fig. 2 is the main view of spiral case in Fig. 1.
Fig. 3 is the top view of spiral case in Fig. 1.
Fig. 4 is the schematic diagram of spiral case in another direction in Fig. 1.
Figure 5-8 is the schematic diagram of the refrigeration equipment of the utility model one embodiment in different directions.
Appended drawing reference: spiral case 1, snail shape portion 11, volute tongue 12, the first ventilation opening 101, the second ventilation opening 102, reception room 103,
Air dam 13, bottom plate 131, side plate 132, hub disk 111, shroud 112, coaming plate 113, tilting section 104, third venting mouth 105,
The radius R1 of the volute tongue molded line of 12 front side of volute tongue, the radius R2 of the volute tongue molded line of 12 rear side of volute tongue, volute tongue 12 and snail
The angle theta of the axis bracket in shape portion 11.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
As shown in Figure 1 to Figure 4, according to the spiral case 1 of the utility model first aspect embodiment, comprising: snail shape portion 11 and volute tongue 12.
Wherein, impeller (not shown), rotation certain driving air-flow of the impeller in snail shape portion 11, shape can be placed in snail shape portion 11
The structure to circulate at certain driving air-flow.
Specifically, having the reception room 103 for accommodating impeller in snail shape portion 11, the axis in snail shape portion 11 is along front and back
To extension, there is the first ventilation opening 101 and the second ventilation opening 102, axis of second ventilation opening 102 along snail shape portion 11 in snail shape portion 11
The setting of line direction, radial direction of second ventilation opening 102 along snail shape portion 11 is arranged, and the second ventilation opening 102 is located at snail shape portion 11
Upside, the first ventilation opening 101 are connected to reception room 103 with the second ventilation opening 102, wherein the first ventilation opening 101 and the second ventilation
One in mouthfuls 102 can be formed as air inlet, and another in the first ventilation opening 101 and the second ventilation opening 102 can be with shape
As air outlet.Preferably set air inlet for the first ventilation opening 101, the second ventilation opening 102 is set as air outlet, that is,
It says, in the blower with the spiral case 1, exist in the driving effect of impeller, air-flow can enter in spiral case 1 from air inlet, and
It is sent out from air outlet.
Volute tongue 12 is set to the left side of the second ventilation opening 102 and extends along the longitudinal direction.
Preferably, volute tongue 12 tilts 3 ° to 10 ° relative to the axis in snail shape portion 11, that is to say, that volute tongue 12 and snail shape portion
The angle theta of 11 axis bracket is in the range of 3 ° to 10 °.
According to the volute tongue 12 of the utility model embodiment, airflow efficiency can be improved to a certain extent.Furthermore it is also possible to
Reduce pneumatic noise.
Specifically, conveniently clearly demonstrating the utility model for being compared with volute tongue 12 in the related technology
Technical solution.It advises more disorderly by impeller periodically beating and the influence in exit flow direction, air-flow at straight volute tongue 12
Unrest, generates biggish rotational noise, therefore design a kind of incline tongue 12, it is intended to which the periodicity for weakening impeller and volute tongue 12 is mutual
Effect, the pressure fluctuation that formation acts on volute tongue 12 is poor, to reduce the pneumatic property rotational noise that blower or even air-conditioning generate.
The design effect of three kinds of incline tongues 12 is calculated using the method for numerical simulation, primary study target is fan delivery
And noise, calculate effect such as the following table 1.Know that wherein 12 noise reduction effect of R=11-14mm incline tongue is most by numerical result
It is good, 3.1dB can be reduced on the basis of prototype.The utility model is shown in table 1 needs technical solution to be protected and related skill
The comparison of other schemes in art can become apparent from the advantage of the technical solution of the utility model.
Table 1
Wherein, R=11-14mm, refer to R1 and R2 in the range of 11 millimeters to 14 millimeters, certainly, above description
An only preferred embodiment of the utility model, is not the limitation to scope of protection of the utility model.In addition, about
Volute tongue 12 is arranged to rear and front end certainly by the radius that R1, R2 respectively indicate the circular arc of the surface interception of 12 rear and front end of volute tongue
Surface interception after shape be circular shape and the utility model a preferred embodiment, be not to this reality
With the limitation of novel protected range, in addition, there is further clear explanation in the following description about R1, R2.
In addition, it should also be noted that, at least part of the molded line shape in the snail shape portion 11 in the utility model can be with
For molded line such as spiral, double helixs, to realize the driving and circulation of air-flow.
Volute tongue 12 in the utility model can be the left side for being located at the second ventilation opening 102 and to the right towards the second ventilation opening
102 protrusions are similarly also possible to that the right side of the second ventilation opening 102 is arranged and protrude to the left towards the second ventilation opening 102.
With reference to Fig. 3, in one embodiment of the utility model, volute tongue 12 exists relative to the tilt angle in snail shape portion 11
In the range of 3.72 ° to 7.11 °.With inclined 12 air quantity of volute tongue of the angular range and noise it can be seen from table above
It can achieve maximum equilibrium, to realize the balance of air quantity and noise.
Furthermore it is preferred that volute tongue 12 can be set to 5.45 ° relative to the tilt angle in snail shape portion 11.
Certainly, volute tongue 12 relative to the tilt angle in snail shape portion 11 is not limited only to this in the application, in environmental noise, wind
Amount requires in lower situation, volute tongue 12 or other tilt angles, for example, the inclining relative to snail shape portion 11 of volute tongue 12
Rake angle is set as 2.5 °, 3.9 °, 4.8 °, 7.0 °, 9.8 °, 10.8 ° etc..
Such as Fig. 1, in one embodiment of the utility model, on direction from front to back, the first ventilation opening 101 is set to
On the antetheca in snail shape portion 11, volute tongue 12 is tilted to the left on direction from front to back relative to the axis in snail shape portion 11.So as to
To reduce the noise of air-flow.
Referring to figs. 1 to Fig. 4, further, the surface of volute tongue 12 is the smooth surface vertically extended.Air-flow can be with
Steadily by volute tongue 12, thus the noise for avoiding turbulent air flow from generating, also avoid as air-flow it is unstable caused by energy
Loss improves air quantity.
Preferably, referring to Fig. 2, volute tongue type is formed with the surface of the plane interception volute tongue 12 of the axis perpendicular to snail shape portion 11
Line, volute tongue molded line are arc-shaped.Further improve the stationarity of air-flow.
Further, the radius R1 of the volute tongue molded line of 12 front side of volute tongue is less than the radius of the volute tongue molded line of 12 rear side of volute tongue
R2 can preferably form incline tongue 12 above-mentioned by the variation of radius, improve the wind effect of spiral case 1.
Preferably, it is less than the volute tongue molded line of 12 front side of volute tongue referring to Fig. 2, the radius R2 of the volute tongue molded line of 12 rear side of volute tongue
The difference of radius R1 is 1 millimeter to 4 millimeters.That is, the value of R2-R1 is in the range of 1 millimeter to 4 millimeters, certain R1-R2
Value can not also within the scope of this, for example, the value of R2-R1 can be 0.5 millimeter, 1.5 millimeters, 2.8 millimeters, 4.8 millimeters
Etc..
It can be advantageous to the circle center line connecting of all volute tongue molded line in volute tongue 12 is arranged to be parallel to 1 axis of spiral case, and
The whole inclination of volute tongue 12 is realized only by the radius change of volute tongue molded line, it can also be by the whole installation on the surface of volute tongue 12
At inclined form.
Wherein, in the utility model the axis bracket in volute tongue 12 and snail shape portion 11 angle theta, following understanding can be done:
Line segment with the surface of volute tongue 12 near 102 right side of the second ventilation opening is reference, the line segment and snail shape portion 11
The angle of axis is θ.
Furthermore it is also possible to by the radius of the volute tongue molded line of 12 front side the radius R1 of the volute tongue molded line of 12 rear side of volute tongue and volute tongue
The difference R2-R1 of R2 and snail shape portion 11 are suitable for the ratio of the outer diameter R3 of the impeller of storage in the range of 0.5% to 2%.Also
It is to say, for the value of (R2-R1)/R3 in the range of 0.5% to 2%, the value of certain (R2-R1)/R3 can not also be in this range
It is interior, for example, the value of (R2-R1)/R3 can be 0.3%, 1.5%, 2.5%, 3% etc..
In one embodiment of the utility model, model of the radius of the volute tongue molded line of volute tongue 12 at 11 millimeters to 14 millimeters
In enclosing.
Preferably, R1=11 millimeters, R2=14 millimeters.
Furthermore it is also possible to which the radius of the volute tongue molded line of volute tongue 12 and snail shape portion 11 to be suitable for the ratio of the outer diameter of the impeller of storage
In the range of value 5% to 7%.
Advantageously, the surface of volute tongue 12 and the inner peripheral surface in snail shape portion 11 are tangent.The surface of volute tongue 12 and snail shape can be passed through
The inner peripheral surface in portion 11 is tangent and the surface of volute tongue 12 and the upper surface of following bottom plates 131 are tangent, to limit the table of volute tongue 12
Face is formed, in addition, can determine tilt angle, shape of volute tongue 12 of volute tongue 12 etc. in the radius of engagement volute tongue molded line.
Preferably, the surface and snail shape portion 11 of volute tongue 12 when intercepting spiral case 1 with the plane of the axis perpendicular to snail shape portion 11
Inner peripheral surface it is tangent.
As a comparison with conventional spiral case 1, by impeller periodically beating and exit flow direction at conventional straight volute tongue 12
Influence, air-flow more disorder generates biggish rotational noise, therefore designs a kind of incline tongue 12, it is intended to weaken impeller with
The periodical interaction of volute tongue 12, the pressure fluctuation that formation acts on volute tongue 12 is poor, to reduce blower or even air-conditioning generation
Pneumatic property rotational noise.
Referring to Fig. 2 and Fig. 4, in one embodiment of the utility model, the right edge and the snail shape portion of the second ventilation opening 102
The inner surface of 11 right side walls flushes in the up-down direction.The size of the second ventilation opening 102 can be increased to a certain extent, improved
Air output.
Referring to Fig.1 and Fig. 4, in one embodiment of the utility model, at least the one of the front edge of the second ventilation opening 102
Part gradually turns forward to form tilting section 104 on direction from the bottom up.Air quantity can be further promoted, moreover, inclining
Oblique section 14 can effectively guide airflow, to reduce the turbulent flow and noise of air-flow, effectively realizing reduces energy damage
Mistake, energy conservation, noise reduction etc..
Referring to Fig.1 and Fig. 4, further, tilting section 104 is located at the rear side on the front edge of the second ventilation opening 102.
Preferably, the width dimensions of tilting section 104 in left-right direction are in the range of 8 millimeters to 40 millimeters.
Alternatively, it is also possible to which the width dimensions in left-right direction of tilting section 104 and snail shape portion 11 to be suitable for the impeller of storage
The ratio of outer diameter is in the range of 4.40% to 22%.
Tilt outlet design parameter is the tilting procedure of 8mm to 30mm, inclination guarantees simultaneously to the greatest extent again needed for
1 thickness of spiral case.Compared to prototype, discharge area is increased, air quantity is the product with muzzle velocity and discharge area, therefore
This designs the air quantity that can increase blower；Again because blower is axial exit design, similarly there is air-flow in axial outlet wall
Periodic percussion, the design of this tilt outlet can weaken impeller and the axial effect for turning to wall surface, so as to reduce blower
Aerodynamic noise.
In addition, the width dimensions of tilting section are gradually increased, it is preferable that the second ventilation opening 102 on the direction far from volute tongue
The interior lateral edge of the part of upper neighbouring volute tongue does not tilt, and since the predetermined position on the second ventilation opening 102, the second ventilation opening
102 interior lateral edge starts to tilt.In addition, the inclined size of the second ventilation opening 102 is gradually in remoter position at a distance from volute tongue
Increase.In other words, the surface of tilting section (leads to forward, to far from second in other words gradually downward on the direction far from volute tongue
The direction etc. in air port 102) inclination.
The ratio of the width dimensions of 102 front side of width dimensions and the second ventilation opening of tilting section in left-right direction can be 1
To in the range of 1/10, and tilting section can be covered up to the side far from volute tongue on the second ventilation opening 102.In addition, tilting section is left
The spacing of the initial position at end and the volute tongue is L1, and the width of the front side of the second ventilation opening 102 in left-right direction is L2, L1/
L2 can be in the range of 0.01 to 0.6.
Referring to figs. 1 to Fig. 4, in one embodiment of the utility model, spiral case 1 further include: air dam 13, air dam 13
Bottom and the second ventilation opening 102 week along being connected so that air dam 13 is connected to the second ventilation opening 102, and in air dam 13
It limits side and opens wide the cavity for forming third venting mouth 105.
Referring to Fig.1, further, the front side of air dam 13 is opened wide and forms third venting mouth 105.
Referring to Fig.1, it is preferable that air dam 13 includes: bottom plate 131 and side plate 132, bottom plate 131 and the second ventilation opening 102
Front edge be connected with left margin be connected and to far from the second ventilation opening 102 direction horizontal extension；At least part of side plate 132
In opening forward and along the U-shaped board that the direction around the second ventilation opening 102 extends, and side plate 132 vertically extends, side plate
132 cooperatively form cavity with bottom plate 131.
Advantageously, referring to Fig.1, the lower edge of side plate 132 is successively with the right of bottom plate 131 along the right side of, the second ventilation opening 102
Edge, the back edge of the second ventilation opening 102, the back edge of bottom plate 131 and bottom plate 131 left margin be connected.
In addition, referring to Fig.1, the width dimensions of bottom plate 131 in left-right direction are greater than the second ventilation opening 102 in left-right direction
Width dimensions.
In one embodiment of the utility model, the width dimensions of 13 front side of air dam in left-right direction are greater than air dam
The width dimensions of 13 rear side in left-right direction, and in projection in left-right direction, the projection of air dam 13 falls in air dam
13 rear side.
As a comparison with conventional spiral case 1, conventional spiral case 1 is axial admission, and the gas into spiral case 1 is made through impeller
With then going out to flow along radially outlet under the guide functions of four sections of 1 curves of spiral case, there are one to ask for such inlet and outlet mode
Topic, gas can occupy more spaces along inlet and outlet section, especially have to design in the limited space of window air conditioner a kind of small
Space and spiral case of good performance 1.
Conventional radial outlet is changed to axial outlet by the design spiral case 1, and air-flow is by similar " U " type channel, Ke Yiman
The better air-suction state of sufficient window air conditioner and out stream mode.
Referring to figure 5-8, the top of spiral case 1 is capped the closing of structure 2, therefore, air dam 13 above-mentioned and closure construction 2
Between will form the shape that there is front side and bottom surface to have opening, specifically, U-shaped side plate 132, bottom plate 131 and covering
Structure 2 has cooperatively formed wind guide chamber, the reception room in the bottom connection snail shape portion of wind guide chamber, the open-front of wind guide chamber, therefore,
When air-flow is sent to the second ventilation opening 102 from reception room, under the guiding function of wind guide chamber, air-flow will be before wind guide chamber
Face is sent out and (is namely sent out from third venting mouth).In addition, from the first ventilation opening in attached drawing 4 as can be seen that snail shape portion
It is formed in the front side in snail shape portion, therefore, air-flow enters reception room from the first ventilation opening, enters wind guide chamber by the second ventilation opening,
It is sent by third venting mouth, to form U-shaped air-supply.
Certainly, air-flow can also from third venting mouth after wind guide chamber, the second ventilation opening, reception room from the first ventilation opening
It sends out, this process is inverse process above-mentioned, is no longer described in detail herein.
Wherein, heat exchange structure can be set before snail shape portion, in addition, as can be seen that bottom plate from the embodiment of front
The front side wall in snail shape portion has been stretched out in 131 front side, therefore, will will form one between bottom plate 131 and the front side wall in snail shape portion
Accommodation space, at this point it is possible to be arranged heat exchange structure in this accommodation space.
Correspondingly, when which being applied in heat exchange equipment (such as window air conditioner), the antetheca in snail shape portion can be set
It is set to the form sunk in heat exchange equipment, thus easily can place heat exchange structure on the antetheca in snail shape portion.
Certainly, above description is only some specific embodiments of the utility model, is not to the utility model
The limitation of protection scope.For example, heat exchange structure can also be arranged to other positions for the utility model.
Closure construction 2 in the utility model can be the structures such as the top plate of heat exchange equipment.
It will be observed from the foregoing that the inner space of air dam 13 gradually extends out on direction from back to front.And
The rear portion of the inner space of air dam 13 is connected to reception room.
In one embodiment of the utility model, at least part and the snail shape portion 11 of air dam 13 are integrally formed.
Referring to figs. 1 to Fig. 4, in one embodiment of the utility model, snail shape portion 11 includes: hub disk 111, shroud 112
With coaming plate 113.Shroud 112 is set to before hub disk 111 at interval；Coaming plate 113 surrounds the annular for having opening in top, encloses
Plate 113 is connected with shroud 112 and hub disk 111, and coaming plate 113 limits reception room 103 between shroud 112 and hub disk 111, encloses
The opening on 113 top of plate is combined with shroud 112 and hub disk 111 forms the second ventilation opening 102, the in projection along the longitudinal direction
One ventilation opening 101 falls in 113 inside of coaming plate.
According to the blower of the utility model second aspect embodiment, comprising: spiral case 1 and impeller.Spiral case 1 is according to above-mentioned
Spiral case 1；Impeller is rotatably arranged in snail shape portion 11.
According to the blower of the utility model embodiment, 1 structure of spiral case above-mentioned is utilized, air output and drop can be improved
Low air-supply noise, to improve the overall performance of blower.
In one embodiment of the utility model, the blade of impeller is non-uniform thickness curved blade.
According to the refrigeration equipment of the utility model third aspect embodiment, including blower above-mentioned.
Refrigeration equipment in the utility model can be window air conditioner etc..
In addition, in the utility model each parameter value, the following table 2 can be referred to.
Table 2
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (24)
1. a kind of spiral case characterized by comprising
Snail shape portion, has the reception room for accommodating impeller in snail shape portion, and the axis in snail shape portion prolongs along the longitudinal direction
It stretches, there is the first ventilation opening and the second ventilation opening, axis side of second ventilation opening along snail shape portion in snail shape portion
To setting, radial direction of second ventilation opening along snail shape portion is arranged, and second ventilation opening is located at the snail shape
On the upside of portion, first ventilation opening is connected to the reception room with second ventilation opening；
Volute tongue, the volute tongue is set to the left side of second ventilation opening and extends along the longitudinal direction, and the volute tongue is relative to institute
The axis for stating snail shape portion tilts 3 ° to 10 °.
2. spiral case according to claim 1, which is characterized in that the volute tongue exists relative to the tilt angle in snail shape portion
In the range of 3.72 ° to 7.11 °.
3. spiral case according to claim 1, which is characterized in that on direction from front to back, first ventilation opening is set
In on the antetheca in snail shape portion, the volute tongue inclines to the left on direction from front to back relative to the axis in snail shape portion
Tiltedly.
4. spiral case according to claim 1, which is characterized in that the surface of the volute tongue be vertically extend it is smooth
Curved surface.
5. spiral case according to claim 3, which is characterized in that intercept institute with the plane of the axis perpendicular to snail shape portion
The surface for stating volute tongue forms volute tongue molded line, and the volute tongue molded line is arc-shaped.
6. spiral case according to claim 5, which is characterized in that
The radius of volute tongue molded line on front side of the volute tongue is less than the radius of the volute tongue molded line on rear side of the volute tongue；Or
The radius of volute tongue molded line on front side of the volute tongue is less than 1 millimeter to 4 millimeters of radius of the volute tongue molded line on rear side of the volute tongue；
Or
The difference of the radius of the radius and volute tongue molded line on front side of the volute tongue of volute tongue molded line on rear side of the volute tongue and the snail
Shape portion is suitable for the ratio of the outer diameter of the impeller of storage in the range of 0.5% to 2%.
7. spiral case according to claim 5 or 6, which is characterized in that
The radius of the volute tongue molded line of the volute tongue is in the range of 11 millimeters to 14 millimeters；Or
The radius of the volute tongue molded line of the volute tongue and snail shape portion are suitable for the ratio 5% to 7% of the outer diameter of the impeller of storage
In range.
8. spiral case according to claim 1, which is characterized in that the inner peripheral surface phase on the surface of the volute tongue and snail shape portion
It cuts.
9. spiral case according to claim 1, which is characterized in that intercept institute with the plane of the axis perpendicular to snail shape portion
It is tangent to state the surface of the volute tongue and the inner peripheral surface in the snail shape portion when spiral case.
10. spiral case according to claim 1, which is characterized in that the right edge and the snail shape portion of second ventilation opening
The inner surface of right side wall flushes in the up-down direction.
11. spiral case according to claim 1, which is characterized in that at least part on the front edge of second ventilation opening
It gradually turns forward to form tilting section on direction from the bottom up.
12. spiral case according to claim 11, which is characterized in that the tilting section is located at the front of second ventilation opening
The rear side on edge.
13. spiral case according to claim 12, which is characterized in that
The width dimensions of the tilting section in left-right direction are in the range of 8 millimeters to 40 millimeters；Or
The ratio that the width dimensions of the tilting section in left-right direction and snail shape portion are suitable for the outer diameter of the impeller of storage exists
In the range of 4.40% to 22%.
14. according to claim 1-6, spiral case described in any one of 8-13, which is characterized in that the spiral case further include:
Air dam, week of the bottom of the air dam and second ventilation opening is along being connected, so that the air dam and described the
The connection of two ventilation openings, and limit side in the air dam and open wide the cavity for forming third venting mouth.
15. spiral case according to claim 14, which is characterized in that the front side of the air dam opens wide that form the third logical
Air port.
16. spiral case according to claim 15, which is characterized in that the air dam includes:
Bottom plate, the bottom plate is connected with the front edge of second ventilation opening and left margin to be connected and to far from second ventilation
The direction horizontal extension of mouth；
Side plate, at least part of the side plate extend forward and along the direction around second ventilation opening U-shaped in opening
Plate, and the side plate vertically extends, the side plate and the bottom plate cooperatively form the cavity.
17. spiral case according to claim 16, which is characterized in that the lower edge of the side plate successively right side with the bottom plate
Edge, the right edge of second ventilation opening, the back edge of second ventilation opening, the back edge of the bottom plate and the bottom
The left margin of plate is connected.
18. spiral case according to claim 16, which is characterized in that the width dimensions of the bottom plate in left-right direction are greater than institute
State the width dimensions of the second ventilation opening in left-right direction.
19. spiral case according to claim 15, which is characterized in that the width dimensions on front side of the air dam in left-right direction
Greater than the rear side width dimensions in left-right direction of the air dam, and in projection in left-right direction, the air dam
Projection falls in the rear side of the air dam.
20. spiral case according to claim 14, which is characterized in that at least part of the air dam and snail shape portion
It is integrally formed.
21. according to claim 1-6, spiral case described in any one of 8-13, which is characterized in that snail shape portion includes:
Hub disk；
Shroud, the shroud are set at interval before the hub disk；
Coaming plate, the coaming plate surround the annular for having opening in top, and the coaming plate is connected with the shroud and the hub disk, and
The coaming plate limits the reception room, the opening on the coaming plate top and the shroud between the shroud and the hub disk
It combines to form second ventilation opening with hub disk, the first ventilation opening described in projection along the longitudinal direction is fallen in the coaming plate
Side.
22. a kind of blower characterized by comprising
Spiral case, the spiral case are the spiral case according to any one of claim 1-21；
Impeller, the impeller are rotatably arranged in snail shape portion.
23. blower according to claim 22, which is characterized in that the blade of the impeller is non-uniform thickness curved blade.
24. a kind of refrigeration equipment, which is characterized in that including the blower according to claim 22 or 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820939899.7U CN208669692U (en) | 2018-06-15 | 2018-06-15 | Spiral case, blower and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820939899.7U CN208669692U (en) | 2018-06-15 | 2018-06-15 | Spiral case, blower and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208669692U true CN208669692U (en) | 2019-03-29 |
Family
ID=65824066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820939899.7U Active CN208669692U (en) | 2018-06-15 | 2018-06-15 | Spiral case, blower and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208669692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661950A (en) * | 2018-06-15 | 2018-10-16 | 广东美的制冷设备有限公司 | Spiral case, wind turbine and refrigeration equipment |
-
2018
- 2018-06-15 CN CN201820939899.7U patent/CN208669692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661950A (en) * | 2018-06-15 | 2018-10-16 | 广东美的制冷设备有限公司 | Spiral case, wind turbine and refrigeration equipment |
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