CN207974992U - The ventilation fan that air inlet can be automatically closed - Google Patents
The ventilation fan that air inlet can be automatically closed Download PDFInfo
- Publication number
- CN207974992U CN207974992U CN201721846449.5U CN201721846449U CN207974992U CN 207974992 U CN207974992 U CN 207974992U CN 201721846449 U CN201721846449 U CN 201721846449U CN 207974992 U CN207974992 U CN 207974992U
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- China
- Prior art keywords
- window leaf
- connecting rod
- guide groove
- fan
- fan body
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Abstract
The utility model proposes the ventilation fan that a kind of air inlet can be automatically closed, this kind of ventilation fan can reliably close ventilation mouth when not working.The ventilation fan of the utility model includes：The fan body of frame-type, fan body center are equipped with ventilation mouth, and motor and flabellum are equipped in mouth of taking a breath；The side of several gate leaves, fan body is equipped with several rotary shafts for installing window leaf, and window leaf can be freely rotated around rotary shaft；Window leaf is arranged in the prominent part of movable axis in the side away from rotary shaft, the movable axis of fenestrate leaf be connected with connecting rod, the end of connecting rod is arranged in the prominent part of the guide rod perpendicular to connecting rod, the fan body is equipped with the guide groove of arc, the end of the guide rod is located in guide groove, the radius of guide groove is equal to the spacing of the rotary shaft and movable axis on same window leaf, and the central angle of guide groove is 90 degree；The end of connecting rod is equipped with magnet；Electromagnet is connected by the power supply of ac-dc conversion circuit and ventilation fan；Electromagnet is installed on fan body, and the lower end of face guide groove.
Description
Technical field
The utility model is related to arrive a kind of ventilation fan.
Background technology
When not working, the air of ventilation fan both sides can also be circulated traditional ventilation fan by the gap between flabellum,
Therefore the effect of blocking mosquito is cannot achieve, more it is essential that when winter, bathing indoor ventilation fan becomes cold air
The channel of entrance causes to bathe indoor temperature too low.To solve this problem, some ventilation fans, which increase, is automatically closed air inlet
Function, specific technical solution is to be equipped with shutter in the outside of ventilation fan, and the window leaf of shutter is installed in shaft, is being needed
When taking a breath, shutter is opened to make the window leaf of shutter be rotated up using the air-flow of ventilation fan, and need not taken a breath
When, its own gravity of window leaf makes it rotate down and closes ventilation mouth.There are following problems for above-mentioned ventilation fan, due to the weight of window leaf
Power is smaller, when the wind-force in the external world is larger, is easy that window leaf is made to blow open, loses the effect of closing ventilation mouth, and in external air flow
Under the action of, window leaf can unlatch and close repeatedly, send out irritating noise.
Invention content
The purpose of this utility model is to propose a kind of ventilation fan that air inlet can be automatically closed, this kind of ventilation fan can be not
Ventilation mouth is reliably closed when work.
The ventilation fan that the air inlet of the utility model can be automatically closed includes：
The fan body of frame-type, fan body center are equipped with ventilation mouth, and motor is equipped in mouth of taking a breath and utilizes motor-driven fan
Leaf；
The side of several gate leaves, fan body is equipped with several rotary shafts for installing window leaf, and window leaf can be around rotary shaft certainly
By rotating；Window leaf is arranged in the prominent part of movable axis in the side away from rotary shaft, the movable axis of fenestrate leaf be connected with connecting rod, it is described
The end of connecting rod is arranged in the prominent part of the guide rod perpendicular to connecting rod, and the fan body is equipped with the guide groove of arc, the end of the guide rod
Portion is located in guide groove, and the radius of the guide groove is equal to the spacing of rotary shaft and movable axis on same window leaf, guide groove
Central angle is 90 degree；The end of connecting rod is equipped with magnet；
Electromagnet is made of iron core and the coil being wound on iron core, the coil by ac-dc conversion circuit with change
The power supply connection of gas fan；Electromagnet is installed on fan body, and the lower end of face guide groove.
The course of work of above-mentioned ventilation fan is as follows：
After ventilation fan power-off is stopped, window leaf is rotated down around rotary shaft under the effect of gravity, is led to simultaneously
Crossing movable axis drives connecting rod to move down, and connecting rod, can only be downward along arc trajectory under the guiding role of guide rod and guide groove
Side and the rear of fan body（I.e. indoor direction）It is mobile, until the magnet adsorption of interlinking lever end is on the iron core of electromagnet, at this point, window
Leaf also has rotated 90 degree around rotary shaft, and all window leaves cooperate, and it is the same to be equivalent to shutter, closes ventilation mouth.Connecting rod
On magnet and the iron core of electromagnet be attached together, connecting rod is fixed at the end position of guide groove, at the same make window leaf without
Method is blown by extraneous air-flow.
And after ventilation fan is powered on, magnet spool obtains electric and generates magnetic, electromagnet and the magnet on connecting rod
Identical charges repel each other, and magnet of the electromagnet on connecting rod is applied with repulsive force so that the guide groove of connecting rod arcuately upwards, to fan body
Front is moved, and is opened to be rotated synchronously with active window leaf, in addition, the air-flow that flabellum is formed can also blow flabellum, it is ensured that change
Gas port is opened.
Further, the upper and lower ends of the connecting rod are equipped with guide rod and magnet, so that the flabellum of upper and lower can
Smoothly unlatch and close.
Further, the leading flank of the fan body is equipped with the boss for limiting window leaf rotational angle, so that window leaf is closing
When closing, it is parked in vertical angle just.
Further, in the window leaf, the section of middle part window leaf is parallelogram, the bottom surface and bottom of top window leaf
The top surface of portion's window leaf is inclined-plane, and in this way when window leaf is closed, the intersection of neighbouring window leaf is inclined-plane rather than horizontal
Face, the bottom end of eyebrow window leaf are pressed in the top end of lower part window leaf, and blowing to active force that indoor wind is applied can be by eyebrow window leaf
It is pressed on the window leaf of lower part so that window leaf more they tends to closed state, it is ensured that window leaf will not automatically be opened under the action of external wind
It opens.
The ventilation fan of the utility model passes through the installing connecting rods on window leaf so that the fenestrate leaf of institute can only rotate synchronously, and solve
The problem of single window leaf is easy to be blown up；The electromagnet and magnet acted simultaneously further through limiting rod, can be in window leaf
A relatively stable position-limiting action power is provided for window leaf, it is ensured that the stabilization of window leaf closed state when closing.
Description of the drawings
Fig. 1 is the structural schematic diagram of the open state of the ventilation fan of the utility model.
Fig. 2 is the structural schematic diagram of the closed state of the ventilation fan of the utility model.
Attached drawing indicates：1, fan body；2, ventilation mouth；3, flabellum；4, window leaf；5, rotary shaft；6, movable axis；7, connecting rod；8, it leads
To bar；9, guide groove；10, permanent magnet；11, electromagnet；12, boss.
Specific implementation mode
It is such as involved to specific embodiment of the present utility model by the description to embodiment below against attached drawing
The shape of each component, construction, the mutual alignment and connection relation between each section, the works such as the effect of each section and operation principle
It is further to be described in detail.
Embodiment 1：
As shown, the ventilation fan that the air inlet of the present embodiment can be automatically closed includes：
The fan body 1 of frame-type, 1 center of fan body are equipped with ventilation mouth 2, and motor is equipped in mouth 2 of taking a breath and is driven using motor
Flabellum 3；
Several gate leaves 4, the side of fan body 1 are equipped with the rotary shaft 5 of several levels, and the upper end of window leaf 4 is equipped with horizontal lead to
Hole, the diameter of through-hole are slightly larger than the diameter of rotary shaft 5, and rotary shaft 5 is plugged in through-hole so that window leaf 4 can be around rotary shaft 5 certainly
By rotating；The middle part of window leaf 4 is being arranged in the prominent part of horizontal movable axis 6 away from the side of rotary shaft 5, fenestrate leaf 4 movable axis 6
It is connected with connecting rod 7, in the present embodiment, connecting rod 7 is equipped at intervals with horizontal blind hole, and diameter of blind hole is slightly larger than movable axis 6
The end of diameter, movable axis 6 is inserted into blind hole, and realization window leaf 4 is flexibly connected with connecting rod 7；
The end of connecting rod 7 is arranged in the prominent part of the guide rod 8 perpendicular to connecting rod 7, and the fan body 1 is equipped with the guide groove 9 of arc, institute
The end for stating guide rod 8 is located in guide groove 9, and the radius of the guide groove 9 is equal to rotary shaft 5 and activity on same window leaf 4
The central angle of the spacing of axis 6, guide groove 9 is 90 degree；The end of the upper and lower ends of connecting rod 7 is equipped with permanent magnet 10；
Electromagnet 11 is made of iron core and the coil being wound on iron core, the coil by ac-dc conversion circuit with
The power supply of ventilation fan connects；Electromagnet 11 is installed on fan body 1, and the lower end of face guide groove 9.
The course of work of above-mentioned ventilation fan is as follows：
After ventilation fan power-off is stopped, window leaf 4 is rotated down around rotary shaft 5 under the effect of gravity, simultaneously
Connecting rod 7 is driven to move down by movable axis 6, connecting rod 7, can only be along camber line rail under the guiding role of guide rod 8 and guide groove 9
Mark is downwards and the rear of fan body 1（I.e. indoor direction）It is mobile, until the permanent magnet 10 of 7 end of connecting rod is adsorbed on electromagnet 11
On iron core, at this point, window leaf 4 also has rotated 90 degree around rotary shaft 5, all window leaves 4 cooperate, and it is the same to be equivalent to shutter,
Close ventilation mouth.Permanent magnet 10 and the iron core of electromagnet 11 on connecting rod 7 are attached together, and connecting rod 7 is fixed on guide groove 9
End position at, while making window leaf 4 that can not be blown by extraneous air-flow.
And after ventilation fan is powered on, the coil of electromagnet 11 obtains electric and generates magnetism, on electromagnet 11 and connecting rod 7
Identical charges repel each other for permanent magnet 10, and permanent magnet 10 of the electromagnet 11 on connecting rod 7 is applied with repulsive force so that the leading arcuately of connecting rod 7
It moves to slot 9, is opened to be rotated synchronously with active window leaf 4 upwards, to the front of fan body 1, in addition, the air-flow that flabellum 3 is formed
Also flabellum 3 can be blown, it is ensured that ventilation mouth is opened.
The leading flank of fan body 1 is equipped with the boss 12 for limiting 4 rotational angle of window leaf, so that window leaf 4 is when closed, just
It is parked in vertical angle.
In the present embodiment, in the window leaf 4, the section of middle part window leaf 4 is parallelogram, the bottom of top window leaf 4
Face and the top surface of bottom window leaf 4 are inclined-plane, and in this way when window leaf 4 is closed, the intersection of neighbouring window leaf 4 is inclined-plane
Rather than horizontal plane, the bottom end of eyebrow window leaf 4 are pressed in the top end of lower part window leaf 4, blow to the active force that indoor wind is applied
Eyebrow window leaf 4 can be pressed on lower part window leaf 4 so that window leaf 4 more they tends to closed state, it is ensured that window leaf 4 will not be in external wind
It is automatically turned under the action of power.
Claims (4)
1. the ventilation fan that a kind of air inlet can be automatically closed, it is characterised in that including：
The fan body of frame-type, fan body center are equipped with ventilation mouth, and motor is equipped in mouth of taking a breath and utilizes motor-driven flabellum；
The side of several gate leaves, fan body is equipped with several rotary shafts for installing window leaf, and window leaf can freely turn around rotary shaft
It is dynamic；Window leaf is arranged in the prominent part of movable axis in the side away from rotary shaft, the movable axis of fenestrate leaf be connected with connecting rod, the connecting rod
End be arranged in the prominent part of the guide rod perpendicular to connecting rod, the fan body is equipped with the guide groove of arc, the end position of the guide rod
In in guide groove, the radius of the guide groove is equal to the spacing of rotary shaft and movable axis on same window leaf, the center of circle of guide groove
Angle is 90 degree；The end of connecting rod is equipped with magnet；
Electromagnet is made of iron core and the coil being wound on iron core, and the coil passes through ac-dc conversion circuit and ventilation fan
Power supply connection；Electromagnet is installed on fan body, and the lower end of face guide groove.
2. the ventilation fan that air inlet according to claim 1 can be automatically closed, it is characterised in that up and down the two of the connecting rod
End is equipped with guide rod and magnet.
3. the ventilation fan that air inlet according to claim 1 can be automatically closed, it is characterised in that the leading flank of the fan body
Equipped with the boss for limiting window leaf rotational angle.
4. the ventilation fan that air inlet according to claim 1 can be automatically closed, it is characterised in that in the window leaf, middle part window
The section of leaf is parallelogram, and the bottom surface of top window leaf and the top surface of bottom window leaf are inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721846449.5U CN207974992U (en) | 2017-12-26 | 2017-12-26 | The ventilation fan that air inlet can be automatically closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721846449.5U CN207974992U (en) | 2017-12-26 | 2017-12-26 | The ventilation fan that air inlet can be automatically closed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207974992U true CN207974992U (en) | 2018-10-16 |
Family
ID=63771997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721846449.5U Expired - Fee Related CN207974992U (en) | 2017-12-26 | 2017-12-26 | The ventilation fan that air inlet can be automatically closed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207974992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956727A (en) * | 2017-12-26 | 2018-04-24 | 信宜市汇美电器有限公司 | The ventilation fan that air inlet can be automatically closed |
-
2017
- 2017-12-26 CN CN201721846449.5U patent/CN207974992U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956727A (en) * | 2017-12-26 | 2018-04-24 | 信宜市汇美电器有限公司 | The ventilation fan that air inlet can be automatically closed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 Termination date: 20181226 |