CN206905149U - A kind of guard of blowing device - Google Patents
A kind of guard of blowing device Download PDFInfo
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- CN206905149U CN206905149U CN201720610345.8U CN201720610345U CN206905149U CN 206905149 U CN206905149 U CN 206905149U CN 201720610345 U CN201720610345 U CN 201720610345U CN 206905149 U CN206905149 U CN 206905149U
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Abstract
The guard of blowing device described in the utility model, including outer frame body and the grid in the outer frame body, the grid include middle part grid, are arranged at the wind-guiding grate of the middle part grid surrounding, be characterized in：The middle part grid successively and the circumferential rib that is concentrically arranged between guard center and wind-guiding grate and forms some radial ribs of multiple circumferential ribs connections by some, and the both ends shape in the circumferential rib section be inner end be arrow shaped, outer end be oval head or olive shape round end shape.The utility model is during use, because that one end of circumferential rib towards fan blade is the end small arrow shaped of point and the other end is oval or olive shape round end shape, so as to effectively reduce guard grid to the resistance of air-out and reduce discharge loss, the air quantity of air draft is increased, i.e., noise is small, structure is more firm.The utility model can be widely used in the equipment such as various air conditioners and blower fan.
Description
Technical field
It the utility model is related to blowing device field, the guard of particularly a kind of air-conditioner outdoor unit and blower fan（Protect lattice
Grid）.
Background technology
Current traditional blowing device（Such as air-conditioner outdoor unit and blower fan）The protective grille or guard of air outlet are all based on pacifying
Total factor and set, and do not consider from outdoor air flow really.Configure this quasi-tradition grid or guard to blower fan
Had a great influence with heat pump performance, be unfavorable for efficiency lifting.The it is proposed of particularly new European Union's safety is empty to the degree of protection of grid
Preceding strict, new safety requirement causes air outlet grate and net cover structure more firmly and safe, virtually increases the air-out of air-flow
Resistance, the increase of resistance cause the hydraulic performance decline of blower fan.Existing guard mostly using radial configuration multiple radial ribs with
The synthetic resin of multiple cyclic ribs one of concentric arrangement is made.The rib of mat made of this synthetic resin is generally all
It is made thicker, rectangular cross-section or parallelogram sturcutre, so not only easily produces larger noise in use, and
And air-out windage is larger, cause the hydraulic performance decline of blowing device, noise is big.
The content of the invention
The purpose of this utility model is problem and shortage be present for above-mentioned, there is provided one kind can effectively reduce outlet damage
Lose, performance is good, and air-out windage is low, and noise is small and the guard of the stronger blowing device of structure.
What the technical solution of the utility model was realized in：
The guard of blowing device described in the utility model, including outer frame body and the grid in the outer frame body, it is described
Grid includes middle part grid, is arranged at the wind-guiding grate of the middle part grid surrounding, is characterized in：The middle part grid by
It is some successively and the circumferential rib that is concentrically arranged between guard center and wind-guiding grate and to make some of multiple circumferential ribs connections
Radial rib forms, and the both ends in the circumferential rib section are inner end respectively for head inwardly（Towards impeller of blower）Arrow shaped or
The small mushroom of umbrella body, outer end（Backwards to impeller of blower）For oval head or olive shape round end shape.
Further to improve its guide performance, also head can be made inwardly in above-mentioned radial rib section（Towards fan blade）Arrow
Head or the small mushroom of umbrella body.The air-supply direction of rotation of above-mentioned radial rib towards the blowing device fan blade bends arrangement successively.
And it is further to ensure its superperformance, the height of above-mentioned arrow shaped or mushroom head inner end accounts for whole footpath
To 20% to the 50 of rib height.Preferably 30% to 40%.Above-mentioned radial rib depth of section between 5--10MM, width be 1.5-
5MM。
Further technical scheme is：Above-mentioned wind-guiding grate can be use up the deflection air-flow flowed out in air-conditioner outdoor unit by some
Amount pivot of maneuver is sequentially arranged composition to derived arc sweepforward stator, the both ends of each sweepforward stator be connected to it is described in
Portion's grid and the outer frame body.Make the utility model in the operation of air-conditioner outdoor unit aerofoil fan, can be by exporting at grid
The effect of sweepforward stator and the deflection air-flow of outflow try one's best cycle axial direction, so as to reduce blowing device outlet flow resistance,
Reducing output flow loss makes air-flow export more smooth.
In order to further reduce noise, the further technical scheme of the utility model is：Before above-mentioned radial rib and arc
The bending direction for plunderring stator is opposite.Because air-flow from leaf blade enter grid when, grid will certainly be impacted, this practicality is new
The advantage of this improvement grid of type is：The distribution of the rib of its radial rib and sweepforward stator conversely forms approximation in bending direction
S-shaped shape so that phase difference occurs in the gas shock rib of same time step, so as to realize the reduction of noise.
The utility model is for arrow towards fan blade direction end due to using the circumferential rib on guard to make section both ends shape
Head, fan blade direction end is oval head or the sphaerocepharous structure of olive shape backwards so that the utility model is in the process used
In, because that one end of circumferential rib towards fan blade is the end small arrow shaped of point and the other end is oval or olive shape round end shape, so as to
Guide performance is more preferable, effectively reduces guard grid again to the resistance of fan blade air-out and reduces discharge loss, increases air draft
Air quantity, i.e. performance is good, and air-out windage is low, and noise is small, and structure is more firm.The utility model is ingenious in design, it is simple in construction, can
Lean on, air-out effect it is good, can be widely used in the equipment such as various air conditioners and blower fan.And due to the present invention arrow shaped or
The height of mushroom head inner end accounts for 20% to the 50 of whole radial rib height, further ensure that its air-out performance.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model A-A sectional structure enlarged diagrams.
Fig. 3 is the sectional structure enlarged diagram of radial rib in Fig. 2.
Embodiment
As shown in Figure 1-Figure 3, the guard of blowing device described in the utility model, including outer frame body 1, positioned at guard center
Central plate 4 and the grid in the outer frame body 1, the grid include middle part grid 2, be arranged at the middle part grid 2
The wind-guiding grate 3 of surrounding, in order to effectively reduce out wind resistance and reduce noise, the middle part grid 2 is by some successively and same
Some radial ribs that heart is arranged in the circumferential rib 21 between guard center and wind-guiding grate 3 and connects multiple circumferential ribs 21
22（Also lateral connection rib can be）Composition, and the both ends shape in the section of the circumferential rib 21 is inner end 211（Towards fan blade direction
End）For arrow shaped or the small mushroom of umbrella body, outer end 212（Backwards to fan blade direction end）For oval head or olive shape round end
Shape.The utility model during use, due to circumferential rib 21 towards that one end of fan blade be arrow shaped or mushroom head, its
Hold sharp thickness smaller（Preferred scheme is that end point also makes arc transition）, therefore the fan blade of blowing device air quantity in air draft passes through
Cross on the inside of guard to go out wind resistance smaller, along with its other end（Outer end）For oval head or olive shape round end shape, further
Reduce guard grid to the resistance of air-out and reduce discharge loss, increase the air quantity of air draft, noise is small.Outer end simultaneously
For oval or olive shape round end shape, also can effectively prevent from hindering hand when using, use is safer, and structure is more firm.Preferred scheme
It is that the section inner end of radial rib 22 highly wants the short inner end height in the coupled section of circumferential rib 21；Or above-mentioned radial rib
22 are connected in the arrow shaped in above-mentioned circumferential rib 21 or the position section at mushroom head inner end umbrella body rear, i.e., radial rib 22 is cut
The inner height in face is smaller than or equal to circumferential rib inner end arrow shaped or the height of mushroom head inner end umbrella body rear end, preferably
Scheme is that interior correct of radial rib is connected on the maximum position of circumferential rib inner end width.Further to improve its wind-guiding
Performance, the both ends shape in the above-mentioned section of radial rib 22 may be alternatively configured inner end（Towards the end in fan blade direction）For arrow shaped, outside
End（Backwards to the end in fan blade direction）For oval or olive shape round end shape.Above-mentioned radial rib 22 is towards the air-supply direction of rotation of fan blade
Bending arrangement successively.The circumferential rib 21 of above-mentioned middle part grid 2 and the section of radial rib 22 are perpendicular to guard diameter.Further
Scheme be secondary footpath that above-mentioned radial rib 22 includes the main radial rib and a part of circumferential rib 21 of connection for connecting all circumferential ribs 21
To rib.Reduce the loss of air quantity output flow to be further and make air-flow export more smooth, above-mentioned wind-guiding grate 3 by it is some can be by sky
Adjust the deflection air-flow pivot of maneuver of trying one's best of outflow in outdoor unit sequentially to be arranged to derived arc sweepforward stator 31 composition, it is described it is each before
The both ends for plunderring stator 31 are connected to the middle part grid 2 and the outer frame body 1.In order to further reduce noise, on
It is opposite with the bending direction of arc sweepforward stator 31 to state radial rib 22.In above-mentioned middle part grid, it is closer to guard center
Height between circumferential rib and fan blade is greater than also corresponding away from the height between guard center annular rib and fan blade, its radial rib
Curving slightly inwards.The utility model is ingenious in design, simple in construction, reliable, air-out effect is good, can be widely used in various skies
Adjust in the equipment such as device and blower fan.
Below table is the correction data that existing guard and Novel net described in the utility model are covered in performance：
| Noise (dBA) | Air quantity m3/h | Rotating speed (r/min) | Power (w) | Voltage (V/Hz) | Remarks |
| 55.3 | 2855 | 1100 | 78 | 220/50 | New guard |
| 49.2 | 2345 | 900 | 46 | 、、 | New guard |
| 46.0 | 2084 | 800 | 34 | 、、 | New guard |
| 56.6 | 2845 | 1100 | 78 | 、、 | Existing guard |
| 50.6 | 2340 | 900 | 46 | 、、 | Existing guard |
| 47.1 | 2080 | 800 | 34 | 、、 | Existing guard |
It can be seen that from upper table, under equal conditions, improved guard is bigger than the air-out volume of existing guard, and noise is small.
Although the utility model is to be described with reference to specific embodiments, this description is not meant to the utility model
It is construed as limiting.With reference to description of the present utility model, other changes of the disclosed embodiments, all it is for those skilled in the art
It is anticipated that, this change should belong in appended claims limited range.
Claims (9)
1. a kind of guard of blowing device, including outer frame body（1）And positioned at the outer frame body（1）Interior grid, the grid bag
Include middle part grid（2）, be arranged at the middle part grid（2）The wind-guiding grate of surrounding（3）, it is characterised in that：The middle part lattice
Aperture plate（2）By it is some successively and the circumferential rib that is concentrically arranged between guard center and wind-guiding grate（21）And make multiple rings
Shape rib（21）Some radial ribs of connection（22）Composition, and the circumferential rib（21）The both ends shape in section is inner end（211）
For head arrow shaped inwardly or the small mushroom head of umbrella body, outer end（212）For oval head or olive shape round end shape.
2. guard according to claim 1, it is characterised in that：Above-mentioned radial rib（22）The inner end in section be head inwardly
Arrow shaped or the small mushroom head of umbrella body, outer end are oval head or olive shape round end shape.
3. guard according to claim 1 or 2, it is characterised in that：Above-mentioned radial rib depth of section between 5--10MM,
Width is 1.5-5MM, and the height of its arrow shaped or mushroom head inner end accounts for 20% to the 50% of whole radial rib height.
4. guard according to claim 1, it is characterised in that：Above-mentioned radial rib（22）Air-supply towards blowing device fan blade is revolved
Turn direction and bend arrangement successively.
5. guard according to claim 1, it is characterised in that：Above-mentioned radial rib（22）Including connecting all circumferential ribs（21）
Main radial rib and a part of circumferential rib of connection（21）Secondary radial rib.
6. guard according to claim 1, it is characterised in that：Above-mentioned wind-guiding grate（3）By it is some can be by air-conditioner outdoor unit
The deflection air-flow of interior outflow tries one's best pivot of maneuver to derived arc sweepforward stator（31）Sequentially arrangement composition, each sweepforward stator
（31）Both ends be connected to the middle part grid（2）With the outer frame body（1）.
7. guard according to claim 6, it is characterised in that：Above-mentioned radial rib（22）With arc sweepforward stator（31）It is curved
It is bent in opposite direction.
8. guard according to claim 1, it is characterised in that：Above-mentioned middle part grid（2）Circumferential rib（21）And radially
Rib（22）Section perpendicular to guard diameter.
9. guard according to claim 1, it is characterised in that：Above-mentioned radial rib（22）Section inner end be highly less than with
Its connected circumferential rib（21）The inner end height in section；Or above-mentioned radial rib（22）It is connected to above-mentioned circumferential rib（21）On arrow
Head or the position section at mushroom head inner end umbrella body rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720610345.8U CN206905149U (en) | 2017-05-27 | 2017-05-27 | A kind of guard of blowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720610345.8U CN206905149U (en) | 2017-05-27 | 2017-05-27 | A kind of guard of blowing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206905149U true CN206905149U (en) | 2018-01-19 |
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ID=61286445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720610345.8U Active CN206905149U (en) | 2017-05-27 | 2017-05-27 | A kind of guard of blowing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206905149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120742A (en) * | 2017-05-27 | 2017-09-01 | 广东顺威精密塑料股份有限公司 | A kind of guard of blowing device |
-
2017
- 2017-05-27 CN CN201720610345.8U patent/CN206905149U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120742A (en) * | 2017-05-27 | 2017-09-01 | 广东顺威精密塑料股份有限公司 | A kind of guard of blowing device |
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