CN201246332Y - Ventilation fan - Google Patents
Ventilation fan Download PDFInfo
- Publication number
- CN201246332Y CN201246332Y CNU2008201893935U CN200820189393U CN201246332Y CN 201246332 Y CN201246332 Y CN 201246332Y CN U2008201893935 U CNU2008201893935 U CN U2008201893935U CN 200820189393 U CN200820189393 U CN 200820189393U CN 201246332 Y CN201246332 Y CN 201246332Y
- Authority
- CN
- China
- Prior art keywords
- shell
- ventilating fan
- exhaust outlet
- motor
- impeller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an exhaust fan, in particular to an exhaust fan used for electric appliances in kitchens and bathrooms. The exhaust fan comprises a housing (1), an air inlet (2) arranged on the bottom of the housing (1), an air outlet (3) arranged on one side of the housing (1), an impeller arranged in the housing (1), and a motor (4) connected with the shaft hole of the impeller, wherein the impeller comprises an annular bottom frame (5), a plurality of blades (6) arranged outside the annular bottom frame (5), and a connection frame (7) arranged between the annular bottom frame (5) and the shaft hole; and the connection frame (7) is composed of a plurality of connection strips. The exhaust fan can effectively improve the heat dissipation of a motor during operation.
Description
Technical field
The utility model relates to a kind of ventilating fan, relates in particular to a kind of ventilating fan of the kitchen guarding's of being used for electrical equipment.
Background technique
Along with the day by day pursuit of people to good domestic environment, the use of kitchen guarding's electrical equipment that is installed on kitchen or toilet is also more and more general, yet how to reduce the volume of kitchen guarding's electrical equipment, the height of raising ceiling board, thereby the environment space that reaches effective raising household is the problem that people pay close attention to.
The volume key that reduces kitchen guarding's electrical equipment is to reduce ventilating fan volume wherein, because ventilating fan has accounted for most of volume of kitchen guarding's electrical equipment, and employed in the market ventilating fan, especially the ventilating fan that is used in kitchen guarding's electrical equipment generally comprises shell, be located at the intake grill of outer casing bottom, be located at the exhaust outlet of shell one side, be located at the impeller in the shell and be located at the motor that shell is interior and drives impeller is rotated, this impeller comprises blade and the electrical machinery cover that is connected with blade by support, and motor places electrical machinery cover, this electrical machinery cover is an enclosed construction, the output shaft of this motor is connected with axis hole on being located at electrical machinery cover, during operation, motor drives blade rotation by electrical machinery cover.
The ventilating fan of this kind structure, because this electrical machinery cover is an enclosed construction, the heat that produces when causing motor rotation is difficult for distributing, and causes motor to burn out easily.
The model utility content
At the shortcoming of prior art, the purpose of this utility model provides a kind of ventilating fan that can effectively improve motor radiating effect in the running.
For achieving the above object, the technical solution of the utility model is: a kind of ventilating fan, comprise shell, be located at outer casing bottom intake grill, be located at the exhaust outlet of shell one side, the motor of being located at the impeller in the shell and being connected with the impeller axis hole, this impeller comprises the annulus underframe, be located at some blades in the annulus underframe outside and be located at link press span between annulus underframe and the axis hole, and this link press span is made up of some connection straps.
These some connection straps are at interval evenly distribution.
Annulus underframe, blade and link press span are formed in one.
The longitudinal section oval in shape of this exhaust outlet; The minor axis of the exhaust outlet of oval in shape is parallel with outer cover height place direction, and the minor axis length of exhaust outlet longitudinal section minor axis length identical with outer cover height or exhaust outlet is a bit larger tham outer cover height.
This motor integral body is positioned at the hollow cavity that some connection straps surround.
The output shaft of this motor is provided with the location piece of a qualification link press span mounting point.
This cover top portion is provided with the radiation hole of power supply machine heat radiation.
Compared with prior art, impeller in the utility model is made of annulus underframe, some blades of being located at the annulus underframe outside and the link press span of being located between annulus underframe and the axis hole, and this link press span is made up of some connection straps, the link press span of this kind structure helps the air-flow of blade generation and contacting of motor, has improved motor radiating effect in the running greatly.
Simultaneously, the utility model is set as elliptical shape by the exhaust outlet longitudinal section with shell one side, the rounded exhaust outlet of this kind structure and prior art is compared, its benefit is, under the prerequisite of the length that does not increase the exhaust outlet minor axis, increase the air-out area of exhaust outlet by the length that increases the exhaust outlet major axis, so, the air-out area that increases exhaust outlet just need not take the longitudinal space of ventilating fan, and the circular exhaust outlet of prior art, under the radius situation identical with the utility model exhaust outlet minor axis, its air-out area is less than the utility model, and in the prior art, the area that increase exhaust outlet also must take the longitudinal space of ventilating fan, so the utility model is under the condition that seldom takies longitudinal space, can effectively increase the exhaust outlet area, improve scavenging efficiency, also effectively reduce the setting height(from bottom) on ceiling board and roof simultaneously, make full use of the space of household.
In addition, the utility model is located at the integral body of motor in the hollow cavity that connection strap surrounds, and has made full use of the inner unnecessary volume of impeller, thereby has reduced the height of the shell that holds impeller and motor, has significantly reduced the shared space of ventilating fan.
Description of drawings
Fig. 1 is the main TV structure figure of the utility model ventilating fan;
Fig. 2 is the upwarding cutaway view of the utility model ventilating fan;
Fig. 3 is the left TV structure figure of the utility model ventilating fan.
Embodiment
As shown in Figures 1 and 2, a kind of ventilating fan, comprise shell 1, be located at shell 1 bottom intake grill 2, be located at the exhaust outlet 3 of shell 1 one sides, the motor 4 of being located at the impeller in the shell 1 and being connected with the impeller axis hole, this impeller comprises annulus underframe 5, be located at some blades 6 in annulus underframe 5 outsides and be located at link press span 7 between annulus underframe 5 and the axis hole, and this link press span 7 is made up of some connection straps.These some connection straps are at interval evenly distribution.This impeller be positioned at intake grill 2 directly over, motor 4 is installed on shell 1 inboard, and motor 4 is connected to external power supply by a capacitor, this capacitor is positioned in the small shell of shell 1 side and exhaust outlet 3 intersections.
Wherein, the quantity of above-mentioned blade 6 is 30～40, and blade 6 rotates under the driving of motor 4, and air from intake grill 2 inspirations and under the effect of blade 6, is sent air from exhaust outlet 3; The quantity of connection strap is 4～8, and connection strap spaced apart helps the air-flow of blade 6 generations and contacting of motor 4, has improved the radiating effect of motor 4 greatly.In addition, in order to improve radiating effect, this shell 1 top also is provided with the radiation hole of power supply machine 4 heat radiations.
As shown in Figure 3, the longitudinal section oval in shape of this exhaust outlet 3, the minor axis of exhaust outlet 3 longitudinal sections is parallel with outer cover height h place direction, and the minor axis length of exhaust outlet 3 longitudinal sections is a bit larger tham shell 1 height h with shell 1 height h minor axis length identical or exhaust outlet 3.According to the needs of ventilating fan design, under the prerequisite of the length of the minor axis that does not increase the exhaust outlet longitudinal section, increase the air-out area of exhaust outlet by the length that increases exhaust outlet longitudinal section major axis.
In order to make full use of the horizontal space of ventilating fan, reduce the longitudinal space of ventilating fan, the hollow cavity that these motor 4 integral body also are positioned at connection strap and are surrounded.
The output shaft of this motor 4 is provided with the location piece of a qualification link press span 7 mounting points, under the effect of this location piece, can avoid link press span 7 to contact with motor 4 and shell 1, thereby guarantee that blade 6 can smooth and easy rotation, when avoiding wheel rotation and the damage that harmful friction brought of link press span 7 and motor 4.
When production and processing, for the convenience of installing, improve installation efficiency, annulus underframe 5, blade 6 and link press span 7 are formed in one.
Claims (8)
1, a kind of ventilating fan, comprise shell (1), be located at shell (1) bottom intake grill (2), be located at the exhaust outlet (3) of shell (1) one side, the motor (4) of being located at the impeller in the shell (1) and being connected with the impeller axis hole, it is characterized in that: this impeller comprises annulus underframe (5), be located at some blades (6) in annulus underframe (5) outside and be located at link press span (7) between annulus underframe (5) and the axis hole, and this link press span (7) is made up of some connection straps.
2, ventilating fan according to claim 1 is characterized in that: these some connection straps are at interval evenly distribution.
3, ventilating fan according to claim 2 is characterized in that: annulus underframe (5), blade (6) and link press span (7) are formed in one.
4, ventilating fan according to claim 1 is characterized in that: the longitudinal section oval in shape of this exhaust outlet (3).
5, ventilating fan according to claim 4, it is characterized in that: the minor axis of the exhaust outlet of oval in shape (3) is parallel with shell (1) height place direction, and the minor axis length of exhaust outlet (3) longitudinal section minor axis length highly identical with shell (1) or exhaust outlet (3) is a bit larger tham shell (1) highly.
6, ventilating fan according to claim 1 is characterized in that: this motor (4) integral body is positioned at the hollow cavity that some connection straps surround.
7, ventilating fan according to claim 1 is characterized in that: the output shaft of this motor (4) is provided with the location piece of qualification link press span (a 7) mounting point.
8, according to each described ventilating fan of claim 1 to 7, it is characterized in that: this shell (1) top is provided with the radiation hole of power supply machine heat radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201893935U CN201246332Y (en) | 2008-08-29 | 2008-08-29 | Ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201893935U CN201246332Y (en) | 2008-08-29 | 2008-08-29 | Ventilation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246332Y true CN201246332Y (en) | 2009-05-27 |
Family
ID=40730154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201893935U Expired - Fee Related CN201246332Y (en) | 2008-08-29 | 2008-08-29 | Ventilation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246332Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016373A (en) * | 2012-12-15 | 2013-04-03 | 浙江省质量检测科学研究院 | Efficient household ventilating fan with motor forced ventilation and integral heat dissipation structure |
-
2008
- 2008-08-29 CN CNU2008201893935U patent/CN201246332Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016373A (en) * | 2012-12-15 | 2013-04-03 | 浙江省质量检测科学研究院 | Efficient household ventilating fan with motor forced ventilation and integral heat dissipation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20100829 |