CN205977814U - Air conditioner, through -flow fan and spiral case structure thereof - Google Patents
Air conditioner, through -flow fan and spiral case structure thereof Download PDFInfo
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- CN205977814U CN205977814U CN201620936058.1U CN201620936058U CN205977814U CN 205977814 U CN205977814 U CN 205977814U CN 201620936058 U CN201620936058 U CN 201620936058U CN 205977814 U CN205977814 U CN 205977814U
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Abstract
The utility model discloses an it is regional that air conditioner, through -flow fan and spiral case structure thereof, spiral case structure have the export spiral case that is used for should setting up with the air -out broadside on of fan blade (2), export spiral case region has sealed cavity (31) that are located between its medial surface and the lateral surface, the regional medial surface of export spiral case has the intercommunication sealed cavity (31) with through -hole (32) of spiral case inner chamber. The utility model provides a spiral case structure, the torrent kinetic energy of air current can pass during the through -hole transmits sealed cavity, and then weaken and eliminate this part noise even, have effectively reduced the noise, because the inside static pressure of sealed cavity is greater than the outside a little, uses general mood and flow the unable sealed cavity that gets into to under spiral case structure's structure guide, by spiral case structure's air outlet outflow, the air -out amount of wind has been guaranteed.
Description
Technical field
This utility model is related to technical field of refrigeration equipment, particularly to a kind of air-conditioner, cross flow fan and its spiral case knot
Structure.
Background technology
Air channel noise common source air-flow vortex in the air-flow impact to wall and fan blade rotary course in air channel
Produce and spread, the outlet volute region being especially correspondingly arranged in the air side with blower fan, after airflow passes cross fan blade air-out, speed
Degree and turbulent flow, volution energy are larger, and therefore, the noise of generation is larger.
At present, the noise eliminating this position usually uses stream flow direction uniformly.As patent publication No. is
CN203642432U, in the patent document of utility model entitled noise reduction cabinet-type air conditioner spiral case and cabinet air-conditioner, the air-flow air-out of spiral case
At mouthful, arc deflector is set, deflector is provided with water conservancy diversion shrinkage pool.But, deflector needs to fix with respect to spiral case, therefore,
In order to fix this deflector, setting is needed to connect the entity structure (as raised ribs) of this deflector, this entity structure is inevitable
Meeting weaken air quantity and increase power consumption it is impossible to ensure air-out volume.
Therefore, how to reduce noise it is ensured that air-out volume, be those skilled in the art's problem demanding prompt solution.
Utility model content
In view of this, this utility model provides a kind of worm frame, to reduce noise it is ensured that air-out volume.This practicality
New also disclose a kind of cross flow fan and air-conditioner.
For achieving the above object, this utility model provides following technical scheme：
It can be seen from above-mentioned technical scheme that, this utility model provide a kind of worm frame, have for fan blade
The outlet volute region that is correspondingly arranged of air side, described outlet volute region has between face on its inside and lateral surface
Sealing cavity, the medial surface in described outlet volute region has the through hole connecting described sealing cavity and described spiral case inner chamber.
Preferably, in above-mentioned worm frame, also include being tightly connected plate, described be tightly connected plate and described worm frame
Spiral case body connects the described sealing cavity of formation.
Preferably, in above-mentioned worm frame, described be tightly connected plate be located at described spiral case body outside.
Preferably, in above-mentioned worm frame, described plate and the described spiral case body spaced set of being tightly connected.
Preferably, in above-mentioned worm frame, described through hole is perpendicular to the medial surface in described outlet volute region.
Preferably, in above-mentioned worm frame, the quantity of described through hole is multiple and is in staggered arrangement.
Preferably, in above-mentioned worm frame, d1≤d2；
Wherein, d1 is the minimum range described in adjacent two rows between through hole；
D2 is the minimum range described in alternate two rows between through hole.
Preferably, in above-mentioned worm frame, described through hole has the extended structure extending to the inside of described sealing cavity.
Preferably, in above-mentioned worm frame, Φ≤h1≤2 Φ；
Wherein, Φ is the diameter of described through hole,
H1 is the length of described extended structure.
Preferably, in above-mentioned worm frame, the end of described through hole is flushed with the surface of entity structure that it is located.
This utility model additionally provides a kind of cross flow fan, and including worm frame and fan blade, described worm frame is as above
State the worm frame described in any one.
Preferably, in above-mentioned cross flow fan, β<α；
Wherein, α is the entrance angle of described fan blade；
β is the air outlet angle that described fan blade is correspondingly arranged with described outlet volute region.
Preferably, in above-mentioned cross flow fan, β=α -40 °.
This utility model additionally provides a kind of air-conditioner, and including cross flow fan, described cross flow fan is to pass through as above
Flow fan.
The worm frame that this utility model provides, sealing cavity be located at outlet volute region medial surface and lateral surface it
Between, and medial surface in outlet volute region arranges the through hole of communication seals cavity and spiral case inner chamber so that outlet volute region
Define Helmholtz's acoustic wave filter structure.After doing work through fan blade, maximum vortex street occurs in the air side of fan blade to air-flow, and with
The flowing air-flow is progressively spread, and can produce different degrees of turbulent flow in diffusion process, when air-flow flow to outlet volute region,
The Turbulent Kinetic of air-flow can be delivered in sealing cavity through through hole, produce resonance and Absorption, make rapids in sealing cavity
The energy of flow reduces, and then weakens or even eliminate this partial noise, effectively reduces noise；And, there is no unnecessary entity structure
Hinder air current flow, sealing cavity be sealing space, in it there is still current of gas in the moment, air-out air-flow when by through hole,
Due to the inside static pressure of sealing cavity micro- more than outside, use pathogenic wind stream and cannot be introduced into sealing cavity, and the knot in worm frame
Under structure guiding, flowed out it is ensured that air-out volume by the air outlet of worm frame.
This utility model additionally provides a kind of cross flow fan with above-mentioned worm frame and air-conditioner.Due to above-mentioned spiral case
Structure has above-mentioned technique effect, has the cross flow fan of above-mentioned worm frame and air-conditioner also should have same technology effect
Really, here is no longer discussed in detail.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the cross flow fan that Fig. 1 provides for this utility model embodiment；
The partial schematic diagram of the worm frame that Fig. 2 provides for this utility model embodiment；
Fig. 3 is the left view schematic diagram of Fig. 2；
The distribution schematic diagram of the through hole that Fig. 4 provides for this utility model embodiment；
The structural representation of the through hole that Fig. 5 provides for this utility model embodiment.
Specific embodiment
The utility model discloses a kind of worm frame, to reduce noise it is ensured that air-out volume.This utility model is also disclosed
A kind of cross flow fan and air-conditioner.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
As Fig. 1, this utility model embodiment provides a kind of worm frame, has and is correspondingly arranged with the air side of fan blade 2
Outlet volute region, outlet volute region has the sealing cavity 31 between face on its inside and lateral surface, outlet volute
The medial surface in region has through hole 32, through hole 32 communication seals cavity 31 and spiral case inner chamber.
The worm frame that this utility model embodiment provides, sealing cavity 31 is located at the medial surface in outlet volute region with outward
Between side, and the medial surface in outlet volute region arranges communication seals cavity 31 with the through hole 32 of spiral case inner chamber so that going out
Mouth spiral case region defines Helmholtz's acoustic wave filter structure.After fan blade 2 acting, maximum vortex street occurs in fan blade 2 to air-flow
Air side, and progressively spread with the flowing of air-flow, different degrees of turbulent flow can be produced in diffusion process, when air-flow flow to out
During mouth spiral case region, the Turbulent Kinetic of air-flow can be delivered in sealing cavity 31 through through hole 32, produces in sealing cavity 31
Resonance and Absorption, make Turbulent Kinetic reduce, and then weaken or even eliminate this partial noise, effectively reduce noise；And,
Unnecessary entity structure is not had to hinder air current flow, sealing cavity 31 is the space of sealing, and in it, moment has still current of gas, goes out
Pathogenic wind stream when by through hole 32, due to the inside static pressure of sealing cavity 31 micro- more than outside, use pathogenic wind stream cannot be introduced into close
Envelope cavity 31, and under the structure of worm frame guides, flowed out it is ensured that air-out volume by the air outlet 33 of worm frame.
Preferably, fan blade 2 is through-flow fan blade.
It is understood that worm frame away from air outlet 33 part (near heat exchanger 1 part) structure need not
Change, only outlet volute region is changed.The medial surface in outlet volute region is this region towards the one of fan blade 2
Face, the lateral surface in outlet volute region is the one side of its dorsad fan blade 2.
As shown in Fig. 2 in the worm frame of this utility model embodiment offer, also including being tightly connected plate 34, sealing is even
Fishplate bar 34 is connected formation sealing cavity 31 with the spiral case body of worm frame.That is, plate 34 is tightly connected by increase so that sealing
Connecting plate 34 is connected with the spiral case body of worm frame, forms therebetween the sealing cavity 31 corresponding to outlet volute region.
In order to ensure worm frame inside air channel maintains original structure, it is tightly connected the outside that plate 34 is located at spiral case body.Its
In, the one side being tightly connected plate 34 dorsad spiral case body is the lateral surface in outlet volute region, and spiral case body is dorsad tightly connected
The one side of plate 34 is the medial surface in outlet volute region.
It is of course also possible to the inner side positioned at spiral case body for the plate 34 will be tightly connected.
Preferably, it is tightly connected plate 34 and spiral case body spaced set.That is, it is tightly connected plate 34 corresponding with spiral case body
Same or like in the curvature of the entity worm frame in outlet volute region, make to be tightly connected the distance phase that plate 34 arrives spiral case body
Deng so that the thickness of sealing cavity 31 is uniform.The thickness direction of sealing cavity 31 is the medial surface in outlet volute region to outlet
The direction of the lateral surface in spiral case region.
For being easy to process and improve the consideration of erasure effect, preferably make through hole 32 perpendicular to the inner side in outlet volute region
Face.Through hole 32 can also be made to be in certain angle of inclination arrangement with the medial surface in outlet volute region, here no longer tire out one by one state and
All within protection domain.
As shown in figure 3, the quantity of through hole 32 is multiple and is in staggered arrangement.By above-mentioned setting, improve further
Sound-deadening and noise-reducing effect.
As shown in figure 4, d1≤d2；Wherein, d1 is the minimum range between adjacent two exhausting holes 32；D2 is that alternate two rows are led to
Minimum range between hole 32.By above-mentioned setting it is ensured that the uniform distribution of forces in outlet volute region for the through hole 32.At this
In embodiment, with the through hole 32 that arranges in the horizontal direction for a row it is also possible to the through hole 32 according to vertical direction arrangement is a row,
Can also be a row by the through hole 32 along inclined direction arranging, here is no longer tired one by one to be stated.Alternate two exhausting holes 32 are that two rows are led to
It is spaced the structure of an exhausting hole 32 between hole 32.
As shown in figure 5, through hole 32 has the extended structure 321 extending to the inside of sealing cavity 31.Knot is extended by setting
Structure 321, so that through hole 32 extends to the inside of sealing cavity 31, directly affects resonant frequency and the size of Young's moduluss value.Its
In, the length of extended structure 321 is longer, and resonant frequency is lower.The thickness of extended structure 321 is thicker, the Young of extended structure 321
Modulus is bigger, and the resonant frequency of Helmholtz's acoustic filter more levels off to extended structure 321 for rigid situation.That is, by setting
Extended structure 321, reaches the effect of rectifying noise-reduction.
Preferably, Φ≤h1≤2 Φ；Wherein, Φ is the diameter of through hole 32, and h1 is the length of extended structure 321.Certainly,
It can also be provided that other ratios, here is no longer tired one by one to be stated.Wherein, h2 is the length of through hole 32, h1 ＜ h2.
The end of through hole 32 is flushed with the surface of entity structure that it is located.That is, it is not provided with extended structure 321, through hole 32 passes through
Wear the surface of the entity structure at its place, the both ends of through hole 32 are located at the surface of entity structure respectively, and then make through hole 32
End flush with the surface of entity structure that it is located.
This utility model embodiment additionally provides a kind of cross flow fan, and including worm frame 1 and fan blade 2, worm frame 1 is
As any one worm frame above-mentioned.Because above-mentioned worm frame has above-mentioned technique effect, there is the through-flow of above-mentioned worm frame
Blower fan also should have same technique effect, and here is no longer tired one by one to be stated.
As shown in figure 1, β<α；Wherein, α is the entrance angle of fan blade 2；β is correspondingly arranged with outlet volute region for fan blade 2
Air outlet angle.By above-mentioned setting, further increase noise reduction.
Further, β=α -40 °.
This utility model embodiment additionally provides a kind of air-conditioner, including cross flow fan as above.Passed through due to above-mentioned
Flow fan has above-mentioned technique effect, and the air-conditioner with above-mentioned cross flow fan also should have same technique effect, and here is not
Tire out one by one again and state.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or new using this practicality
Type.Multiple modifications to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The wide scope consistent with features of novelty.
Claims (14)
1. a kind of worm frame, has the outlet volute region being correspondingly arranged for the air side with fan blade (2), and its feature exists
In described outlet volute region has the sealing cavity (31) between face on its inside and lateral surface, described outlet volute area
The medial surface in domain has the through hole (32) connecting described sealing cavity (31) and described spiral case inner chamber.
2. worm frame as claimed in claim 1 is it is characterised in that also include being tightly connected plate (34), described is tightly connected
Plate (34) is connected the described sealing cavity of formation (31) with the spiral case body of described worm frame.
3. worm frame as claimed in claim 2 is it is characterised in that the described plate (34) that is tightly connected is located at described spiral case body
Outside.
4. worm frame as claimed in claim 2 or claim 3 is it is characterised in that described be tightly connected plate (34) with described spiral case originally
Body spaced set.
5. worm frame as claimed in claim 1 is it is characterised in that described through hole (32) is perpendicular to described outlet volute region
Medial surface.
6. worm frame as claimed in claim 1 is it is characterised in that the quantity of described through hole (32) is multiple and is in alternate matrix
Row arrangement.
7. worm frame as claimed in claim 6 is it is characterised in that d1≤d2；
Wherein, d1 is the minimum range between through hole (32) described in adjacent two rows；
D2 is the minimum range between through hole (32) described in alternate two rows.
8. worm frame as claimed in claim 1 is it is characterised in that described through hole (32) has to described sealing cavity (31)
The internal extended structure (321) extending.
9. worm frame as claimed in claim 8 is it is characterised in that Φ≤h1≤2 Φ；
Wherein, Φ is the diameter of described through hole (32),
H1 is the length of described extended structure (321).
10. worm frame as claimed in claim 1 is it is characterised in that the end of described through hole (32) and entity that it is located are tied
The surface of structure flushes.
A kind of 11. cross flow fans, including worm frame (1) and fan blade (2) it is characterised in that described worm frame (1) is as power
Profit requires the worm frame described in any one of 1-10.
12. cross flow fans as claimed in claim 11 are it is characterised in that β<α；
Wherein, α is the entrance angle of described fan blade (2)；
The air outlet angle that β is correspondingly arranged with described outlet volute region for described fan blade (2).
13. cross flow fans as claimed in claim 12 are it is characterised in that β=α -40 °.
A kind of 14. air-conditioners, including cross flow fan it is characterised in that described cross flow fan is as any one of claim 11-13
Described cross flow fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620936058.1U CN205977814U (en) | 2016-08-24 | 2016-08-24 | Air conditioner, through -flow fan and spiral case structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620936058.1U CN205977814U (en) | 2016-08-24 | 2016-08-24 | Air conditioner, through -flow fan and spiral case structure thereof |
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| Publication Number | Publication Date |
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| CN205977814U true CN205977814U (en) | 2017-02-22 |
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| CN201620936058.1U Active CN205977814U (en) | 2016-08-24 | 2016-08-24 | Air conditioner, through -flow fan and spiral case structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122103A (en) * | 2016-08-24 | 2016-11-16 | 珠海格力电器股份有限公司 | Air-conditioner, cross flow fan and worm frame thereof |
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2016
- 2016-08-24 CN CN201620936058.1U patent/CN205977814U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122103A (en) * | 2016-08-24 | 2016-11-16 | 珠海格力电器股份有限公司 | Air-conditioner, cross flow fan and worm frame thereof |
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| GR01 | Patent grant |