CN208858606U - Exhaust fan - Google Patents
Exhaust fan Download PDFInfo
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- CN208858606U CN208858606U CN201821342900.4U CN201821342900U CN208858606U CN 208858606 U CN208858606 U CN 208858606U CN 201821342900 U CN201821342900 U CN 201821342900U CN 208858606 U CN208858606 U CN 208858606U
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- mask
- wiring board
- shell
- hole
- installation cavity
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Abstract
The utility model discloses a kind of exhaust fans, including shell, motor, flabellum and mask, installation cavity is formed between shell and mask, wiring board is fixedly installed in installation cavity, mask outer wall is equipped with through-hole, the pyroelectric infrared sensor corresponding to lead to the hole site is provided on wiring board, the Fresnel Lenses for being provide with pyroelectric infrared sensor is equipped in through-hole, sealing ring is equipped between through-hole wall and Fresnel Lenses, the card slot being embedded in for sealing ring is offered on Fresnel Lenses, controller is provided on the wiring board, pyroelectric infrared sensor as input be electrically connected with the controller, controller is electrically connected with motor, the Gask-O-Seal around wiring board is equipped in installation cavity, one end of gasket is fixedly connected with mask, the other end contacts at shell, gasket is equipped with string holes.The utility model has the following advantages that and effect: the utility model has effect more energy saving and with long service life.
Description
Technical field
The utility model relates to a kind of exhaust, aeration technology field, in particular to a kind of exhaust fans.
Background technique
Exhaust fan drives fan blade to rotate certain driving air-flow by motor, a kind of air conditioning electricity for exchanging indoor and outdoor air
Device, also known as draft fan.The purpose of exhaust seeks to remove indoor foul atmosphere, adjusts temperature, humidity and sensory effect.Exhaust
Fan is widely used in family and public place.Exhaust fan, also referred to as negative-pressure air fan, negative pressure fan etc..It is to utilize cross-ventilation
Interior can be allowed to be constantly in negative pressure state, form one suction, continuously the air outside suction chamber, and be discharged indoor bored
The air of heat, to achieve the effect that ventilated, cooling.
The control mode of existing exhaust fan on the market is broadly divided into button and bracing wire two ways, and both modes are in reality
Can exist in the use process of border, when people are when using exhaust fan, need manually to open exhaust fan, and when not in use, it needs
Exhaust fan to be closed manually；Since the operational sound of some mute exhaust fans is very small, cause people after the completion of use, very
It is easy to forget to close exhaust fan, to cause greatly to waste to the energy.And influenced by installation environment, existing exhaust fan
Short circuit easily occurs for control route, to influence the service life of exhaust fan.
Utility model content
The purpose of the utility model is to provide a kind of energy conservation and exhaust fans with long service life.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of exhaust fan, including
Shell, the motor for being fixedly arranged on shell, the flabellum for being set to machine shaft and the mask for being covered on shell, the shell and mask
Between be formed with installation cavity, wiring board is fixedly installed in the installation cavity, the position of the mask outer wall corresponding line plate is set
There is the through-hole of connection installation cavity, the pyroelectric infrared sensor corresponding to lead to the hole site is provided on the wiring board, it is described logical
It is equipped with the Fresnel Lenses for being provide with pyroelectric infrared sensor in hole, sealing is equipped between the through-hole wall and Fresnel Lenses
It encloses, the card slot being embedded in for sealing ring is offered on the Fresnel Lenses, is provided with controller, the heat on the wiring board
It releases electric infrared sensor to be electrically connected with the controller as input, the controller is electrically connected with motor, is equipped in the installation cavity
Around the Gask-O-Seal of wiring board, one end of the gasket is fixedly connected with mask, the other end contacts at shell, described
Gasket is equipped with string holes.
By using above-mentioned technical proposal, when human body walks close to exhaust fan, pyroelectric infrared sensor detects human body spoke
Just controller is sent a signal to after penetrating, controller control motor work is to drive flabellum to be rotated；When human body is far from exhaust
When fan, pyroelectric infrared sensor does not detect that human body radiation signal, motor are not affected by the driving of controller and are in not work
Make state, the automatic control to exhaust fan is realized by pyroelectric infrared sensor, to reach energy-efficient purpose.Work as exhaust fan
When being installed on toilet, due to there is many fogs in toilet, so by the setting of sealing ring to Fresnel Lenses and through-hole
Between be sealed, the setting of gasket is sealed between mask and shell；Make sealing ring and gasket between the two
Cooperation can allow wiring board to be in the space of a relative closure, to reduce the probability that wiring board and fog are in contact, extend
The service life of exhaust fan.
It is further arranged to: being equipped with indicator light in the installation cavity, the indicator light is electrically connected with the controller, the mask
Outer wall is equipped with the lamp hole of connection installation cavity, and the position for lamp hole is arranged in the indicator light.
By using above-mentioned technical proposal, pyroelectric infrared sensor just sends a signal to control after detecting human body radiation
Device, control instructions lamp and motor work controller simultaneously, and people can clearly know the work of exhaust fan by viewing lamp
State.
Be further arranged to: the card slot is installed with close to the one side wall of mask to be outwardly protruded and around the convex of card slot
Ring is formed with gap, the limited ring groove being embedded for bulge loop is offered on the sealing ring between the bulge loop and the bottom of card slot.
By using above-mentioned technical proposal, for Fresnel Lenses when fitting into through-hole, through-hole wall is connected to sealing ring and right
Sealing ring applies the active force mobile towards housing direction, by bulge loop and the cooperation of limited ring groove between the two to positioned at card slot
In sealing ring further limited, prevent sealing ring and card slot to be detached from, thus guarantee both Fresnel Lenses and through-hole it
Between leakproofness.
Be further arranged to: the mask is installed with multiple positioning columns towards shell on one side, multiple positioning columns
Free end is installed with the boss outwardly protruded, and the diameter of the boss is less than the diameter of positioning column, corresponds on the wiring board
The location hole being adapted to therewith is equipped in the position of boss, the height of the boss is less than the thickness of wiring board, the boss and line
Locking piece is equipped between the plate of road.
By using above-mentioned technical proposal, the cooperation between boss, positioning column and locking piece three is to wiring board along positioning
Axially and radially being limited for column, enables wiring board to be preferably fixed on mask.
Be further arranged to: the shell be embedded towards the end face of mask offered on one side for gasket and be adapted to
Seal groove, the gasket extend into seal groove.
By using above-mentioned technical proposal, the setting of seal groove gasket is limited and increase gasket and shell it
Between contact area so that better seal effect can be reached between the two.
In conclusion the utility model has the following beneficial effects: the utility model has more energy saving and service life
Long effect.
Detailed description of the invention
Fig. 1 is the front view of embodiment；
Fig. 2 is the rearview of embodiment；
Fig. 3 is the main view of embodiment；
Fig. 4 is the cross-sectional view in Fig. 3 at A-A；
Fig. 5 is the portion A enlarged drawing in Fig. 4；
Fig. 6 is the partial exploded view of embodiment；
Fig. 7 is the internal structure chart of mask in embodiment；
Fig. 8 is the internal structure chart of shell in embodiment；
Fig. 9 is the functional block diagram of embodiment.
In figure: 1, shell；2, motor；3, flabellum；4, mask；5, installation cavity；6, wiring board；7, through-hole；8, pyroelectricity is red
Outer sensor；9, Fresnel Lenses；10, sealing ring；11, card slot；12, controller；13, gasket；14, string holes；15, it indicates
Lamp；16, lamp hole；17, bulge loop；18, limited ring groove；19, positioning column；20, boss；21, location hole；22, locking piece；23, it seals
Slot.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to figs. 1 to Fig. 5, a kind of exhaust fan including shell 1, the motor 2 that is fixedly installed on shell 1, is fixedly installed on electricity
The flabellum 3 of 2 shaft of machine and mask 4 in shell 1 is connected and fixed, installation cavity 5, mask 4 are formed between shell 1 and mask 4
Outer wall offers the through-hole 7 and lamp hole 16 of connection installation cavity 5 respectively, and Fresnel Lenses 9 is equipped in through-hole 7, is equipped in lamp hole 16
Indicator light 15.
The periphery wall of Fresnel Lenses 9 offers the annular slot 11 around its center of circle, is arranged with and contacts in card slot 11
The sealing ring 10 of 7 wall of through-hole, 11 upper surface of card slot are wholely set the bulge loop 17 around 9 center of circle of Fresnel Lenses, bulge loop 17
Gap, the periphery of one side wall and Fresnel Lenses 9 that bulge loop 17 is open towards card slot 11 are formed between the bottom of card slot 11
Wall is at the same level, and the position that sealing ring 10 corresponds to bulge loop 17 offers the limited ring groove 18 for being embedded for bulge loop 17 and being adapted to therewith.
With reference to Fig. 6 to Fig. 9, it is equipped with wiring board 6 in installation cavity 5 and shape is the gasket 13 of annular, gasket 13 is arranged
In wiring board 6 and gasket 13 is adhesively fixed towards one end of mask 4 and the inner wall of mask 4 by glue, 13 outer wall of gasket
On offer string holes 14.The position that 4 inner wall of mask corresponds to wiring board 6 has been wholely set multiple positioning columns 19, positioning column 19
Quantity is preferably 2；The free end of 2 positioning columns 19 is integrally provided with boss 20, and the diameter of boss 20 is less than positioning column 19
Diameter and the height of boss 20 be less than the thickness of wiring board 6, the position that boss 20 is corresponded on wiring board 6 is equipped with to be adapted to therewith
Location hole 21, between boss 20 and wiring board 6 be equipped with locking piece 22, locking piece 22 be screw, screw pass through location hole 21 with
The end-face helical of boss 20 connects, to realize fixation of the wiring board 6 on positioning column 19.
Pyroelectric infrared sensor 8 and controller 12 are provided on wiring board 6, pyroelectric infrared sensor 8 is as input
It is electrically connected with controller 12, controller 12 is electrically connected with motor 2 and indicator light 15 respectively and controls motor 2 and indicator light 15 simultaneously
Work, Fresnel Lenses 9 cover at pyroelectric infrared sensor 8, Fresnel Lenses 9 and 8 the two of pyroelectric infrared sensor
Between realized and fix by the frictional force formed, wiring board 6 is connected and is supplied wiring board 6 with the power supply in the external world by conducting wire
Electricity, and the conducting wire is pierced by gasket 13 by string holes 14, the material of gasket 13 is rubber material.Shell 1 towards mask 4 one
Face and the position for corresponding to gasket 13 offer the seal groove 23 that shape is annular, shape and the gasket 13 of seal groove 23
End surface shape is adapted and gasket 13 extends into seal groove 23；When mask 4 is fixed on shell 1, gasket 13 is embedded into close
Sealing groove 23 and inconsistent with the bottom and side wall of seal groove 23.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (5)
1. a kind of exhaust fan, including shell (1), it is fixedly arranged on the motor (2) of shell (1), is set to the flabellum of motor (2) shaft
(3) and it is covered on the mask (4) of shell (1), it is characterised in that: be formed with installation cavity between the shell (1) and mask (4)
(5), it is fixedly installed with wiring board (6) in the installation cavity (5), the position of mask (4) the outer wall corresponding line plate (6) is equipped with
It is connected to the through-hole (7) of installation cavity (5), the rpyroelectric infrared sensing corresponding to through-hole (7) position is provided on the wiring board (6)
Device (8), is equipped with the Fresnel Lenses (9) for being provide with pyroelectric infrared sensor (8) in the through-hole (7), through-hole (7) wall with
Sealing ring (10) are equipped between Fresnel Lenses (9), the card being embedded in for sealing ring (10) is offered on the Fresnel Lenses (9)
Slot (11) is provided with controller (12) on the wiring board (6), and the pyroelectric infrared sensor (8) is as input and control
Device (12) electrical connection processed, the controller (12) are electrically connected with motor (2), are equipped in the installation cavity (5) around wiring board
(6) Gask-O-Seal (13), one end of the gasket (13) is fixedly connected with mask (4), the other end contacts at shell
(1), the gasket (13) is equipped with string holes (14).
2. exhaust fan according to claim 1, it is characterised in that: indicator light (15) are equipped in the installation cavity (5), it is described
Indicator light (15) is electrically connected with controller (12), and mask (4) outer wall is equipped with the lamp hole (16) of connection installation cavity (5), described
Indicator light (15) is arranged in the position for lamp hole (16).
3. exhaust fan according to claim 1, it is characterised in that: one side wall of the card slot (11) close to mask (4) is solid
Equipped with outwardly protruding and around the bulge loop of card slot (11) (17), it is formed between the bulge loop (17) and the bottom of card slot (11)
Gap offers the limited ring groove (18) being embedded for bulge loop (17) on the sealing ring (10).
4. exhaust fan according to claim 1, it is characterised in that: mask (4) being installed on one side towards shell (1)
The free end of multiple positioning columns (19), multiple positioning columns (19) is installed with the boss (20) outwardly protruded, the boss
(20) diameter is less than the diameter of positioning column (19), and the position that boss (20) are corresponded on the wiring board (6) is equipped with fits therewith
The location hole (21) matched, the height of the boss (20) are less than the thickness of wiring board (6), the boss (20) and wiring board (6)
Between be equipped with locking piece (22).
5. exhaust fan according to claim 1, it is characterised in that: shell (1) the offering on one side towards mask (4)
Be embedded for the end face of gasket (13) and with the seal groove (23) that is adapted to, the gasket (13) extends into seal groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342900.4U CN208858606U (en) | 2018-08-20 | 2018-08-20 | Exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342900.4U CN208858606U (en) | 2018-08-20 | 2018-08-20 | Exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208858606U true CN208858606U (en) | 2019-05-14 |
Family
ID=66415058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821342900.4U Active CN208858606U (en) | 2018-08-20 | 2018-08-20 | Exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208858606U (en) |
-
2018
- 2018-08-20 CN CN201821342900.4U patent/CN208858606U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The East Mongolia Industrial Zone Wuniu town of Yongjia County, Wenzhou city of Zhejiang Province in 325000 Patentee after: Wenzhou Daguan Electric Co.,Ltd. Address before: The East Mongolia Industrial Zone Wuniu town of Yongjia County, Wenzhou city of Zhejiang Province in 325000 Patentee before: Wenzhou Daguan Electric Co.,Ltd. |