CN205663638U - Centrifugal fan with multistage earth leakage protection - Google Patents
Centrifugal fan with multistage earth leakage protection Download PDFInfo
- Publication number
- CN205663638U CN205663638U CN201620413364.7U CN201620413364U CN205663638U CN 205663638 U CN205663638 U CN 205663638U CN 201620413364 U CN201620413364 U CN 201620413364U CN 205663638 U CN205663638 U CN 205663638U
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- Prior art keywords
- spiral case
- bolt
- earth leakage
- leakage protective
- centrifugal blower
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Abstract
The utility model provides a centrifugal fan with multistage earth leakage protection, includes mounting plate, spiral case, two -extending -shaft motor and wind wheel, mounting plate includes bottom plate body, spiral case installation department and motor mounting section, the spiral case is installed in the spiral case installation department, the wind wheel is fixed in in two -extending -shaft motor's two pivots to be located the inside of spiral case, the bottom of spiral case be equipped with the air exit, its lateral wall is equipped with the air inlet, motor mounting section includes connecting plate and epirelief mounting panel, and the both sides of epirelief mounting panel are located to the connecting plate, still be equipped with bolt and gasket, through the cooperation of bolt and gasket, be fixed in the bottom plate body with the connecting plate, still including earthleakage protective equipment, earthleakage protective equipment is including piercing through bolt, insulation support, insulating cover, collets and bolt sheath. The utility model discloses according to above -mentioned content, provide a centrifugal fan with multistage earth leakage protection, it has multistage earth leakage protection, and job stabilization nature is strong.
Description
Technical field
This utility model relates to blower fan field, particularly relates to one and has multistage earth leakage protective centrifugal blower.
Background technology
Centrifugal blower is dependent on the mechanical energy of input, improves gas pressure and supplies gas side by side the machinery of body, and it is a kind of driven
Fluid machinery.Centrifugal blower is the principle being converted to potential energy according to kinetic energy, utilizes the impeller of high speed rotating to be accelerated by gas, so
Rear deceleration, change flow to, and make kinetic energy be converted into potential energy.In one-stage centrifugal blower fan, gas is from axially into impeller, and gas flows through
It is radially redirected during impeller, subsequently into diffuser.But, existing centrifugal blower is being susceptible to leaky.
Utility model content
The purpose of this utility model is that proposing one has multistage earth leakage protective centrifugal blower, and it has multistage electric leakage
Protection, job stability is strong.
For reaching this purpose, this utility model by the following technical solutions:
One has multistage earth leakage protective centrifugal blower, including mounting base, spiral case, double extension shaft motor and wind wheel,
Described mounting base includes base plate body, spiral case installation portion and motor mounting part；
Described spiral case is installed on described spiral case installation portion；
Described wind wheel is fixed in two rotating shafts of described double extension shaft motor, and is positioned at the inside of described spiral case；
The bottom of described spiral case is provided with exhaust outlet, and its sidewall is provided with air inlet；
Described motor mounting part includes connecting plate and epirelief installing plate, and described connecting plate is located at the two of described epirelief installing plate
Side；
It is additionally provided with bolt and pad, by bolt and the cooperation of pad, described connecting plate is fixed on described base plate originally
Body；
Also including earth leakage protective device, described earth leakage protective device includes penetrating bolt, insulated sleeve, insulation sleeve, absolutely
Edge block and bolt sheath；
The described two ends penetrating bolt are thread segment, are non-threaded section between its two ends, and described insulated sleeve is closely placed on
Described penetrate bolt non-threaded section；
Described collets are located between described epirelief installing plate and described double extension shaft motor, described in penetrate screw bolt passes
Described insulation sleeve, double extension shaft motor, collets and epirelief installing plate, described in penetrate the thread segment at bolt two ends convex in described insulation
Set and epirelief installing plate, and set nut and the described thread segment locking penetrating bolt two ends, described nut is cased with described spiral shell
Bolt sheath.
Further, described spiral case installation portion includes four pieces of limiting plates, described in the outer wall of the exhaust outlet of described spiral case and four pieces
Limiting plate fits tightly, and by fixture, the outer wall of the exhaust outlet of described spiral case is fixed on described limiting plate, described spacing
The end of plate is provided with angle of chamfer.
Further, the air inlet of described spiral case is provided with current collector, and described current collector is screwed.
Further, described current collector includes outer arc portion and inner arc portion, and described outer arc portion is loop configuration, inside it gradually to
Described rotating shaft is reduced and extends, and forms the transition structure of arc, its transition structure the most described inner arc portion.
Further, being additionally provided with control box, described control box integration is provided with control box plate；The four of described control box plate
Individual angle is fillet, by bolt, control box plate is fixed on described double extension shaft motor, and the side of described control box is also positioned at spiral shell
Bolt position is provided with avoiding hollow groove.
Further, described spiral case installation position is in the both sides of described motor mounting part, and is separated by with described motor mounting part
Certain distance.
Further, described wind wheel includes two single-wheels；
Described single-wheel includes that blade, the first connection ring and second connect ring, and it is same that described first connection ring and second connects ring
The heart is oppositely arranged, and described blade is connected to the first connection ring and second equally spacedly and connects between ring；
Described the second of two described single-wheels connects ring and contacts, and is fixed by axle sleeve.
Further, described blade is arc shaped blade, and the quantity of the blade of described single-wheel is 90-100 sheet.
Through the central point C of described blade tip, make the vertical straight line L with described mounting base, make with central point C described
The angle of the tangent line H of blade, tangent line H and straight line L is just the setting angle D of described blade, its setting angle D be positioned at 25 ° to-
Between 30 °.
The purpose of this utility model is that proposing one has multistage earth leakage protective centrifugal blower, and it has multistage electric leakage
Protection, job stability is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of one of them embodiment of this utility model.
Fig. 2 is the elevational schematic view of one of them embodiment of this utility model.
Fig. 3 is the partial enlarged drawing at Figure 1A.
Fig. 4 is the partial enlarged drawing at Figure 1B.
Fig. 5 is the structural representation of the current collector of one of them embodiment of this utility model.
Fig. 6 is the structural representation of the wind wheel of one of them embodiment of this utility model.
Fig. 7 is the schematic diagram of this utility model one of them examples measure setting angle D.
Fig. 8 is the partial enlarged drawing at Fig. 1 E.
Fig. 9 is that the M-M ' of Fig. 4 is to sectional view.
Mounting base 1, base plate body 11, spiral case installation portion 12, limiting plate 121, motor mounting part 13, connecting plate 131, on
Convex installing plate 132, spiral case 2, current collector 23, outer arc portion 231, inner arc portion 232, exhaust outlet 21, air inlet 22, double extension shaft motor 3,
Rotating shaft 31, control box 32, control box plate 321, wind wheel 4, single-wheel 41, blade 411, first connect ring 412, second and connect ring
413, earth leakage protective device 7, penetrate bolt 71, insulated sleeve 72, insulation sleeve 73, collets 74, bolt sheath 75, nut 76.
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by detailed description of the invention.
As shown in Figure 1 to 9, one has multistage earth leakage protective centrifugal blower, including mounting base 1, spiral case 2, double stretches
Spindle motor 3 and wind wheel 4,
Described mounting base 1 includes base plate body 11, spiral case installation portion 12 and motor mounting part 13；
Described spiral case 2 is installed on described spiral case installation portion 12；
Described wind wheel 4 is fixed in two rotating shafts 31 of described double extension shaft motor 3, and is positioned at the inside of described spiral case 2；
The bottom of described spiral case 2 is provided with exhaust outlet 21, and its sidewall is provided with air inlet 22；
Described motor mounting part 13 includes that connecting plate 131 and epirelief installing plate 132, described connecting plate 131 are located on described
The both sides of convex installing plate 132；
It is additionally provided with bolt and pad, by bolt and the cooperation of pad, described connecting plate 131 is fixed on described base plate originally
Body 11；
Also including earth leakage protective device 7, described earth leakage protective device 7 includes penetrating bolt 71, insulated sleeve 72, insulation
Set 73, collets 74 and bolt sheath 75；
The described two ends penetrating bolt 71 are thread segment, are non-threaded section between its two ends, and described insulated sleeve 72 is tight
Non-threaded section of bolt 71 is penetrated described in being placed on；
Described collets 7 are located between described epirelief installing plate 132 and described double extension shaft motor 3, described in penetrate bolt 71
Sequentially pass through described insulation sleeve 73, double extension shaft motor 3, collets 74 and epirelief installing plate 132, described in penetrate bolt 71 two ends
Thread segment is convex in described insulation sleeve 73 and epirelief installing plate 132, and sets nut 76 and the described thread segment penetrating bolt 71 two ends
Locking, is cased with described bolt sheath 75 on described nut 76.
When described one has the work of multistage earth leakage protective centrifugal blower, described double extension shaft motor 3 rotates, and drives
The described wind wheel 4 being fixed on its two rotating shaft 31 rotates, and gas enters into the inside of described spiral case 2 by described air inlet 22,
In described spiral case 2, the direction of gas changes along with the rotation of described wind wheel 4, and gas is finally discharged at described air vent 21.
By bolt and the cooperation of pad, described epirelief installing plate 132 is made more to be stably mounted at described base plate body
11, also allow for dismounting and the maintenance of described epirelief installing plate 132；Described epirelief installing plate 132 makes described double extension shaft motor 3 and institute
State base plate body 11 to separate, reduce the vibrations occurred between itself and described base plate body 11 when double extension shaft motor 3 works, improve
The job stability of described double extension shaft motor 3.
By described bolt 71, insulated sleeve 72, insulation sleeve 73, collets 74, bolt sheath 75 and the cooperation of nut 76,
Can install firm for described double extension shaft motor 3, also function to multistage leakage protection, improve described one and there is multistage electric leakage
The stability of the centrifugal blower work of protection.
Further, described spiral case installation portion 12 includes four pieces of limiting plates 121, the outer wall of the exhaust outlet 21 of described spiral case 2 with
Four pieces of described limiting plates 121 fit tightly, and by fixture, the outer wall of the exhaust outlet 21 of described spiral case 2 are fixed on described limit
Position plate 121, the end of described limiting plate 121 is provided with angle of chamfer.
Even if described wind wheel 4 high-speed rotation output high pressure draught, described spiral case 2 also can be stably fixed to described limiting plate
In 121, improving the stability of its structure and work, the end of described limiting plate 121 is provided with angle of chamfer, on the one hand saves described
The materials of limiting plate 121, on the other hand also function to protective effect, it is to avoid be fixed on by the outer wall of the exhaust outlet 21 of described spiral case 2
During described limiting plate 121, hurt staff.
Further, the air inlet 22 of described spiral case 2 is provided with current collector 23, and described current collector 23 is screwed.
Described current collector 23 makes air-flow can be full of air inlet 22 equably, and when air-flow passes through described current collector 23, resistance
Power can be slowed down, and reduces eddy current crack.
Further, described current collector 23 includes outer arc portion 231 and inner arc portion 232, and described outer arc portion 231 is loop configuration,
Gradually reduce to described rotating shaft 31 and extend inside it, forming the transition structure of arc, its transition structure the most described inner arc portion
232。
Air-flow can be effectively reduced and pass through disturbance produced by air inlet 22, improve described one and there is multistage earth leakage protective
The job stability of centrifugal blower.
Further, being additionally provided with control box 32, the integration of described control box 32 is provided with control box plate 321；Described control box
Four angles of base plate 321 are fillet, by bolt, control box plate 321 are fixed on described double extension shaft motor 3, described control box
The side of 32 is also positioned at bolt position and is provided with avoiding hollow groove 322.
Four limits of described control box 32 are provided with avoiding hollow groove 322, on the one hand save the manufacturing cost of described control box 32, subtract
The speed volume of described control box 32, on the other hand, is also convenient for bolt and control box plate 321 is fixed on described double extension shaft motor
3；And the fastening effect of bolt is strong, it is possible to described control box plate 321 is fitted tightly with described double extension shaft motor 3, and, make
Fix dismounting and the maintenance being also convenient for described control box plate 321 with bolt, four angles controlling box plate 321 are fillet, rise
To protective effect, it is to avoid staff comes to harm when dismounting and keeping in repair described control box 32.
Further, described spiral case installation portion 12 is positioned at the both sides of described motor mounting part 13, and with described motor mounting part
13 is separated by a distance.
Described spiral case installation portion 12 is positioned at the both sides of described motor mounting part 13, and described double extension shaft motor 3 of being more convenient for drives
The wind wheel 4 of the inside of described spiral case 2 works；Motor mounting part 13 described in described spiral case installation portion is separated by a distance, it is ensured that institute
State and have certain reserved location between spiral case 2 and described double extension shaft motor 3, facilitate described spiral case 2 and described double extension shaft motor 3
Dismounting, it also avoid and lean on to obtain the tightest occurred interfering with each other between described spiral case 2 and described double extension shaft motor 3.
Further, described wind wheel 4 includes two single-wheels 41；
Described single-wheel 41 includes that blade 411, first connects ring 412 and second and connects ring 413, and described first connects ring 412
Connecting ring 413 with second to be oppositely arranged with one heart, described blade 411 is connected to the first connection ring 412 and second equally spacedly and connects
Between ring 413；
Described the second of two described single-wheels 41 connects ring 413 and contacts, and is fixed by axle sleeve 414.
Described wind wheel 4 includes two single-wheels 41, it is simple to the dismounting of described wind wheel 4 and maintenance, and described first connects ring 412 He
Second connects ring 413 is oppositely arranged with one heart, makes described blade 411 more be stably installed, and described blade 411 connects equally spacedly
Connect ring 412 and second in first and connect between ring 413, resistance when described single-wheel 41 of slowing down rotates, solid by axle sleeve 414
Fixed, make two single-wheels 41 more be stably installed together.
Further, described blade 411 is arc shaped blade, and the quantity of the blade 411 of described single-wheel 41 is 90-100 sheet.
Make centrifugal blower performance more superior, effectively reduce the volume of centrifugal blower, have bigger blast simultaneously.
Further, through the central point C of described blade 411 end, make the vertical straight line L with described mounting base 1, with in
The angle of tangent line H, tangent line H and straight line L that heart point C makees described blade 411 is just the setting angle D of described blade 411, and it is installed
Angle D is between 25 ° to-30 °.
The efficiency of centrifugal blower can be increased, play the effect improving air-flow.
Know-why of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
By novel principle, and the restriction to this utility model protection domain can not be construed to by any way.Based on explanation herein,
Those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present utility model,
Within these modes fall within protection domain of the present utility model.
Claims (9)
1. having a multistage earth leakage protective centrifugal blower, including mounting base, spiral case, double extension shaft motor and wind wheel, it is special
Levy and be:
Described mounting base includes base plate body, spiral case installation portion and motor mounting part；
Described spiral case is installed on described spiral case installation portion；
Described wind wheel is fixed in two rotating shafts of described double extension shaft motor, and is positioned at the inside of described spiral case；
The bottom of described spiral case is provided with exhaust outlet, and its sidewall is provided with air inlet；
Described motor mounting part includes connecting plate and epirelief installing plate, and described connecting plate is located at the both sides of described epirelief installing plate；
It is additionally provided with bolt and pad, by bolt and the cooperation of pad, described connecting plate is fixed on described base plate body；
Also including earth leakage protective device, described earth leakage protective device includes penetrating bolt, insulated sleeve, insulation sleeve, collets
With bolt sheath；
The described two ends penetrating bolt are thread segment, are non-threaded section between its two ends, and described insulated sleeve is closely placed on described
Penetrate non-threaded section of bolt；
Described collets are located between described epirelief installing plate and described double extension shaft motor, described in penetrate described in screw bolt passes
Insulation sleeve, double extension shaft motor, collets and epirelief installing plate, described in penetrate the thread segment at bolt two ends convex in described insulation sleeve and
Epirelief installing plate, and set nut and the described thread segment locking penetrating bolt two ends, described nut is cased with described bolt and protects
Set.
One the most according to claim 1 has multistage earth leakage protective centrifugal blower, it is characterised in that:
Described spiral case installation portion includes that four pieces of limiting plates, the outer wall of the exhaust outlet of described spiral case and four pieces of described limiting plates closely paste
Closing, and by fixture, the outer wall of the exhaust outlet of described spiral case is fixed on described limiting plate, the end of described limiting plate is arranged
There is angle of chamfer.
One the most according to claim 1 has multistage earth leakage protective centrifugal blower, it is characterised in that: described spiral case
Air inlet be provided with current collector, described current collector is screwed.
One the most according to claim 3 has multistage earth leakage protective centrifugal blower, it is characterised in that: described current collector
Including outer arc portion and inner arc portion, described outer arc portion is loop configuration, gradually reduces to described rotating shaft and extend inside it, forms arc
The transition structure of shape, its transition structure the most described inner arc portion.
One the most according to claim 1 has multistage earth leakage protective centrifugal blower, it is characterised in that: it is additionally provided with control
Box, described control box integration is provided with control box plate；Four angles of described control box plate are fillet, will be controlled by bolt
Box plate is fixed on described double extension shaft motor, and the side of described control box is also positioned at bolt position and is provided with avoiding hollow groove.
One the most according to claim 1 has multistage earth leakage protective centrifugal blower, it is characterised in that: described spiral case is pacified
Dress portion is positioned at the both sides of described motor mounting part, and separated by a distance with described motor mounting part.
One the most according to claim 1 has multistage earth leakage protective centrifugal blower, it is characterised in that: described wind wheel bag
Include two single-wheels；
Described single-wheel includes that blade, the first connection ring and second connect ring, and described first connects ring and second connects the concentric phase of ring
To setting, described blade is connected to the first connection ring and second equally spacedly and connects between ring；
Described the second of two described single-wheels connects ring and contacts, and is fixed by axle sleeve.
One the most according to claim 7 has multistage earth leakage protective centrifugal blower, it is characterised in that: described blade is
Arc shaped blade, the quantity of the blade of described single-wheel is 90-100 sheet.
One the most according to claim 7 has multistage earth leakage protective centrifugal blower, it is characterised in that: through described leaf
The central point C of sheet end, makees the vertical straight line L with described mounting base, makees the tangent line H of described blade, tangent line H with central point C
Just being the setting angle D of described blade with the angle of straight line L, its setting angle D is between 25 ° to-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413364.7U CN205663638U (en) | 2016-05-06 | 2016-05-06 | Centrifugal fan with multistage earth leakage protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413364.7U CN205663638U (en) | 2016-05-06 | 2016-05-06 | Centrifugal fan with multistage earth leakage protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205663638U true CN205663638U (en) | 2016-10-26 |
Family
ID=57160381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620413364.7U Active CN205663638U (en) | 2016-05-06 | 2016-05-06 | Centrifugal fan with multistage earth leakage protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205663638U (en) |
-
2016
- 2016-05-06 CN CN201620413364.7U patent/CN205663638U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |