CN104213619B - Bath lavatory ventilation fan - Google Patents
Bath lavatory ventilation fan Download PDFInfo
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- CN104213619B CN104213619B CN201410347328.0A CN201410347328A CN104213619B CN 104213619 B CN104213619 B CN 104213619B CN 201410347328 A CN201410347328 A CN 201410347328A CN 104213619 B CN104213619 B CN 104213619B
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- lavatory
- air port
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- bath
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Abstract
The invention provides a kind of bath lavatory ventilation fan, it comprises: the exhausting body with inlet scoop and air outlet, inside is equiped with again one and takes turns and turn, this is taken turns and turns between inlet scoop and air outlet, and the foul smell that absorption is extraneous when rotational run, peculiar smell, moisture are entered by inlet scoop, then are derived by air outlet; Hide the capping of the inlet scoop in exhausting body, and offer one first air port and the second air port in center, and at each air port place, there is the first guiding incline and the second guiding incline; The running that control wheel is turned, and the microcontroller is electrically connected with bath lavatory switch, microcontroller includes timing control unit and coordinates the keying of bathing lavatory switch and the running time that control wheel is turned.
Description
Technical field
The present invention relates to a kind of bath lavatory ventilation fan, espespecially a kind of ventilation fan being exclusively used in peculiar smell in extraction bath lavatory, its technical characteristics is that the time that can control ventilation fan running is really to get rid of peculiar smell, and can automatically close during bath lavatory unmanned state, have the effect of saving the energy concurrently, be the invention that a kind of practicality is splendid.
Background technology
It is natural phenomena that people drains dirty thing in body in every day in life, so in dwelling environment now, or all can be provided with quantity in business unit not etc. between lavatory, bathroom etc., and the material had in dirty thing has peculiar smell, foul smell, some Shi Houhui cause lavatory, stinking smell assaulting one's nostrils in bathroom, use every day the number between lavatory, bathroom what many in addition, and everyone comes and goes in great number the dirty thing of excretion, be not only the pollution caused environmentally, user more can be caused dare not to enter to use again.Therefore many buildings can be provided with pipeline or the window of air draft in the process of building lid, the foul smell between bathroom, in lavatory, peculiar smell is so allowed to be discharged, but foul smell, peculiar smell that this practice can be discharged are limited, and some lavatories, setting between bathroom cannot communicating with the external world, cause filling the air of foul smell, peculiar smell.
It is not foul smell, peculiar smell can residue between bath lavatory, in lavatory, moisture is also between bath lavatory, the one must removed in lavatory, moisture residual is easy to cause in wall gap and produces dirty spot, microorganisms such as mould and affect the health of user, therefore must often sweep, spray deodorant or aromatic etc. are to keep clean in bath lavatory, this mode had not only bothered but also had wasted too much manpower and the use cost of article, therefore there is dealer brains to be moved and expect being equiped with and the external ventilation installation be communicated with in bath lavatory, make user in the process gone to toilet, ventilation installation can by the peculiar smell in air, foul smell is extracted and is discharged outdoor, allow to keep totally in bath lavatory and taste clear.Running above by ventilation installation reaches foul smell, the mode of the discharge of peculiar smell, it has some disappearances and exists, the driving that general ventilation installation mainly leans on electric power can operate, therefore user can be equiped with the change-over switch controlling electric light and ventilation installation running outside bath lavatory, but time some after after user goes to toilet, only can remember to close the closedown that ventilation installation but forgotten by electric light, so namely cause electric power loss still, waste, in addition the long-time running of ventilation installation is easy to shorten the life-span used fast, just must carry out keeping in repair and eliminating thus changing.
And have other dealer ventilation installation and electric light to be combined again together, make electric light close rear venting device also can together close, although improve disappearance described above, but the mode together shut down of ventilation installation is short of and considers a problem when closing electric light after user goes to toilet, the together closedown of electric light and ventilation installation, but do not expect also remaining peculiar smell in bath lavatory, foul smell, moisture, must wait until that taste just can be discharged after opening once again by next user, next user just first must stand remaining peculiar smell, or be by electric light, ventilation installation continues to open really to allow smell discharge completely, but but this mode easily causes user forget closing switch and cause the disappearance that continued operation has.Therefore its design can have undesirable part, so relevant dealer further must think deeply, improve above-mentioned ventilation installation, get rid of smell really to reach and have effective use of saving electric power energy concurrently.
Because said circumstances, the present inventor drops into many time study relevant knowledges, and in addition more every quality, carry out research and the exploitation of Related product, and the many experiments gone through and test, and finally release a kind of bath lavatory ventilation fan and improve above-mentioned disappearance, to meet popular requiredly to use.
Summary of the invention
The object of the invention is to: a kind of bath lavatory ventilation fan is provided, is used for improving the disappearance had in above-mentioned illustrated prior art.
For achieving the above object, the technical solution used in the present invention is:
A kind of bath lavatory ventilation fan, it is characterized in that, it comprises:
One exhausting body, its one end offers an inlet scoop, and the side of adjacent inlet scoop is provided with an air outlet, and one end of this air outlet discharge institute sucks moisture, the waste gas of bathing in lavatory, the other end is connected with inlet scoop, and be equiped with again one at this exhausting internal body and take turns and turn, this is taken turns and turns between inlet scoop and air outlet, and the foul smell that absorption is extraneous when rotational run, peculiar smell, moisture are entered by inlet scoop, then are derived by air outlet;
One capping, it is installed and hides the inlet scoop in this exhausting body, this is sealed on center and offers one first air port, and this first air port is arranged on the side of this capping in contrast to exhausting body, and be equipped with one first oblique surface further in all sides in the first air port, this first oblique surface is downward-sloping from the first air port peristoma, a secondary lid is also extended with further at the first air port place, this pair lid includes a mainboard and plural socle, one end of each socle is arranged at four angles of mainboard respectively, the other end is connected to the mouth wall in the first air port, make to arrange in spacing between this mainboard and the first air port, and one second air port is also offered in the center of this mainboard, and the peripheral region in this second air port is equipped with one second oblique surface further, this second oblique surface and the first oblique surface are for arrange in the same way, one lid is also equiped with at the second air port place, and this lid includes long square plate and a plural rib, one end of each rib is connected to four angles of long square plate, the other end is connected to the mouth wall in the second air port, and make long square plate and the second air port be that spacing is arranged,
One microcontroller, it is installed in exhausting body, this microprocessor control takes turns the running of turning, and be electrically connected with bath lavatory switch, this microcontroller includes a built-in timing control unit, when bathing lavatory switch open, and the startup that the wheel that namely microcontroller controls exhausting body is turned, after bath lavatory switch cuts out, the timing control unit control wheel of microcontroller is turned and close running after Preset Time.
The further technical characteristic of the present invention is this exhausting body is provided with further the operating state that a running instruction unit be electrically connected with microcontroller shows exhausting body, this running instruction unit includes a front running lamp and a stopping light, when bathing the switch open in lavatory, this front running lamp display light color represents wheel and turns as operating condition, when bathing lavatory switch and closing, this front running lamp then can be turned and enters late release operating state by display wheel in blink states, when wheel turn decommission completely time, this front running lamp then can jump to stopping light display and take turns the inactive state of turning.
The further technical characteristic of the present invention is that this timing control unit can decommissioning of turning of control wheel behind 5,10,20 or 30 minutes after bath lavatory switch cuts out.
The further technical characteristic of the present invention is that this timing control unit closes behind when bathing lavatory switch open 180 minutes to take turns the running of turning.
The further technical characteristic of the present invention is to have a wet control unit in this microcontroller further, and this wet control unit is bathing the running that when moisture in lavatory exceeds default value, starter cup is turned.
The further technical characteristic of the present invention is to have a hotness unit in this microcontroller is further, this hotness unit in bath lavatory switch be closed condition, and when inside has people to enter, the running that when this hotness unit detects thermal source, starter cup is turned.
The further technical characteristic of the present invention is that the corresponding front running lamp of this capping and stopping light place offer two open-works further, and this front running lamp and the local of stopping light expose to outside each corresponding open-work.
The further technical characteristic of the present invention is that the gradient of this first oblique surface is greater than the gradient of the second oblique surface.
Major advantage of the present invention is, user is after going to toilet, the running first closing electric light but allows ventilation installation maintain the running of a little time, until the set time is to rear automatic closedown running, so allow the peculiar smell of bathing in lavatory, foul smell, moisture really discharge, expending on electric power energy can not be caused also.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present invention;
Fig. 2 is exploded perspective schematic diagram of the present invention;
Fig. 3 is schematic block follow diagram of the present invention;
Fig. 4 is after the present invention bathes lavatory switch open, the view that electric light and exhausting body come into operation;
Fig. 5 is that after the present invention bathes lavatory switch closedown, lights exhausting body is still in the using state schematic diagram of running;
Fig. 6 is the using state schematic diagram that exhausting body of the present invention decommissions;
Fig. 7 is that the present invention responds to the using state schematic diagram having thermal source to open the running of exhausting body in time not opening bath lavatory switch and but enter in bath lavatory.
Description of reference numerals: exhausting body 1; Inlet scoop 11; Air outlet 12; Running instruction unit 13; Front running lamp 131; Stopping light 132; Wheel turns 2; Capping 3; First air port 31; First oblique surface 32; Open-work 33; Secondary lid 4; Mainboard 41; Second air port 411; Socle 42; Second oblique surface 43; Secondary lid 5; Long square plate 51; Rib 52; Microcontroller 6; Timing control unit 61; Wet control unit 62; Hotness unit 63.
Detailed description of the invention
Can reach above-mentioned object and effect to clearly demonstrate the present invention, hereby collocation diagram is described in detail its feature and effect with regard to embodiments of the invention.Refer to shown in Fig. 1 to Fig. 3, the present invention's one bath lavatory ventilation fan, it is installed in the bath lavatory in dwelling environment, and in order to draw the foul smell in bath lavatory, peculiar smell, moisture, and the present invention it comprise: an exhausting body 1, its one end offers the inlet scoop 11 of a corresponding bath inner space, lavatory, the side of adjacent inlet scoop 11 is then provided with one and is hidden in the air outlet 12 of bathing in the ceiling of lavatory, and one end of this air outlet 12 is discharge institute sucks the moisture of bathing in lavatory, waste gas, the other end is then connected with inlet scoop 11, be equiped with again one to take turns turn 2 in this exhausting body 1 inside, this is taken turns and turns 2 is between inlet scoop 11 and air outlet 12, and draw extraneous foul smell when rotational run, peculiar smell, moisture is entered by inlet scoop 11, derived by air outlet 12 again, one in the capping 3 of square, it is installed and hides the inlet scoop 11 in this exhausting body 1, this capping 3 offers one first air port 31 in center, and this first air port 31 is arranged on the side of this capping 3 in contrast to exhausting body 1, and be equipped with one first oblique surface 32 further in all sides in the first air port 31, this first oblique surface 32 is downward-sloping from the first air port 31 peristoma, a secondary lid 4 is also extended with further at the first air port 31 place, this pair lid 4 includes a mainboard 41 and plural socle 42, one end of each socle 42 is arranged at four angles of mainboard 41 respectively, the other end is then connected to the mouth wall in the first air port 31, make to arrange in spacing between its this mainboard 41 and first air port 31, and separately offer one second air port 411 in the center of this mainboard 41 and be communicated with the first air port 31, and the peripheral region in this second air port 411 is equipped with one second oblique surface 43 further, this second oblique surface 43 and the first oblique surface 32 are for arrange in the same way, also to be had a down dip design by the second peristoma side, air port 411, also be provided with once lid 5 and be installed in the second air port 411 place, and this lid 5 includes long square plate 51 and a plural rib 52, one end of each rib 52 is connected to four angles of long square plate 51, the other end is then connected to the mouth wall in the second air port 411, and long square plate 51 and the second air port 411 are arranged in spacing, one microcontroller 6, it is installed in exhausting body 1, this microcontroller 6 be control wheel turn 2 running, and be electrically connected with bath lavatory switch, this microcontroller 6 includes a built-in timing control unit 61, when bathe lavatory switch open time, microcontroller 6 namely turn with the wheel controlling exhausting body 12 startup, after bath lavatory switch cuts out, the timing control unit 61 of microcontroller 6 is that control wheel is turned and 2 after Preset Time, closed running.
The aforementioned technical characteristics for the main embodiment of the present invention, the content of its corresponding this case claim 1, known object of the present invention in detail and implemented kenel, and the technical characteristic described in all the other dependent claims is for the detailed description of claim 1 content or additional technical feature, and be not used to the confining spectrum limiting claim 1, the unnecessary technical characteristic necessarily comprised described in all the other dependent claims of this case claim 1 should be known.
When user enters opening switch before bath lavatory, the wheel of now bathing electric light in lavatory and exhausting body 1 is turned and 2 can be started running simultaneously, the peculiar smell drawn in bath lavatory like this, foul smell, moisture, relieve oneself in bath lavatory with person easy to use, again after user goes to toilet, two kinds of situations can be had, one closes bath lavatory switch for user has, its bath lavatory electric light can decommission in advance, the wheel of exhausting body 1 is turned and 2 then the scheduled time set by the timing control unit 61 in microcontroller 6 can be continued running, until automatically stop after exceeding the scheduled time, so can really by residual peculiar smell, foul smell, moisture is drawn discharge, and keep the cleaning in bath lavatory, it two closes bath lavatory switch for user forgets, now the wheel of exhausting body 1 turns 2 meetings according to the setting of the timing control unit 61 of microcontroller 6, when exceed the longest setting-up time time, the wheel of exhausting body 1 is turned and 2 automatically to be decommissioned, the application life of maintenance exhausting body 1 like this, and the consumption reduced on electric power, this exhausting body 1 significantly increases use effect economically by the setting of microcontroller 6, refers to shown in Fig. 4 to Fig. 6.
Describing of the section above of continuing, the present invention bath lavatory in electric light close after, the running time that can continue can according to the level ground number size in bath lavatory, using state is adjusted, user changes the running time by the timing control unit 61 of microcontroller 6, and the present invention is provided with four groups of control contact circuit figure with the different control time at microcontroller 6 not show, user can utilize hand-held tool to change the contact of circuit voluntarily, the temporal running of change like this, but this mode is also not used to limit the practice that the present invention changes the running time, also microcontroller 6 inside is provided with program, and with methods such as remote controller are controlled, these four groups of times set by timing control unit 61 are respectively 5 again, 10, 20 and 30 minutes, user only needs change-over circuit connects the running time that electricity can change exhausting body 1, in addition when user forgets closing switch, at once to close after also setting 180 minutes in this timing control unit 61 wheel turn 2 running, maintain the use of exhausting body 1 with the consumption of saving on electric power, refer to shown in Fig. 3.
Refer in addition shown in Fig. 1 to Fig. 3, the present invention is provided with a running instruction unit 13 further on exhausting body 1, its major function is to provide user to know the operating state instantly of exhausting body 1, this running instruction unit 13 is electrically connected with microcontroller 6, and this running instruction unit 13 includes front running lamp 131 and a stopping light 132, when bathing lavatory switch and being subject to opening, this front running lamp 131 can show light color representative wheel and turn that 2 states are now crack to be opened and be operating condition, when bathing lavatory switch and being subject to closing, because exhausting body 1 can because of the design of late release, and make front running lamp 131 show wheel in blink states to turn 2 operating states entering late release, again when the wheel of exhausting body 1 turn 2 decommission completely after, this front running lamp 131 can jump to stopping light 132 and be shown wheel and turn 2 for inactive state, user can be provided thus to know and to tell exhausting body 1 state instantly, and in order to allow the user entering bath lavatory can know identification exhausting body 1 state instantly, two open-works 33 are offered further at the setting position of the corresponding front running lamp 131 of this capping 3, stopping light 132, the local of this front running lamp 131 and stopping light 132 exposes to outside each corresponding open-work 33, user so can be allowed to pick out the operating state of exhausting body 1 instantly at a glance, refer to shown in Fig. 1, Fig. 2.
Outside the running startup of the switch control rule exhausting body 1 of the present invention except utilizing bath lavatory, separately can start the running of exhausting body 1 according to contained moisture in bath lavatory, therefore in this microcontroller 6 further in have a wet control unit 62, this wet control unit 62 can detect the moisture value of bath inside, lavatory, when moisture value is higher than originally predetermined numerical values recited, this wet control unit 62 can control wheel turn 2 running, avoid moisture value too high and the rear user of impact goes to toilet use, refer to shown in Fig. 3; In addition, the bath lavatory had by day has sufficient light and without the need to opening electric light, but exhausting body 1 can not be allowed to suspend running, therefore the present invention in microcontroller 6 further in have a hotness unit 63, this hotness unit 63 is when bath lavatory switch non-opening, only need to detect when thermal source human body thermal source enters bath lavatory can control wheel turn 2 startup, so save the consumption on electric light electric power, refer to shown in Fig. 3 and Fig. 7.
It is worth mentioning that most the design be in capping 3 in addition, the gradient design of this first oblique surface 32 is greater than the gradient of the second oblique surface 43, it 2 operationally can draw more multi-faceted peculiar smell, foul smell, moisture with being intended to provide wheel to turn, by the design of two kinds of different gradients, make exhausting body 1 can smell in the whole bath lavatory of omnibearing suction, thorough peace and quiet, zero peculiar smell maintained in bath lavatory, avoid the smell remained to be retained in the user after affecting in bath lavatory, refer to shown in Fig. 1, Fig. 2.
Claims (8)
1. bathe a lavatory ventilation fan, it is characterized in that, it comprises:
One exhausting body, its one end offers an inlet scoop, and the side of adjacent inlet scoop is provided with an air outlet, and one end of this air outlet discharge institute sucks moisture, the waste gas of bathing in lavatory, the other end is connected with inlet scoop, and be equiped with again one at this exhausting internal body and take turns and turn, this is taken turns and turns between inlet scoop and air outlet, and the foul smell that absorption is extraneous when rotational run, peculiar smell, moisture are entered by inlet scoop, then are derived by air outlet;
One capping, it is installed and hides the inlet scoop in this exhausting body, this is sealed on center and offers one first air port, and this first air port is arranged on the side of this capping in contrast to exhausting body, and be equipped with one first oblique surface further in all sides in the first air port, this first oblique surface is downward-sloping from the first air port peristoma, a secondary lid is also extended with further at the first air port place, this pair lid includes a mainboard and plural socle, one end of each socle is arranged at four angles of mainboard respectively, the other end is connected to the mouth wall in the first air port, make to arrange in spacing between this mainboard and the first air port, and one second air port is also offered in the center of this mainboard, and the peripheral region in this second air port is equipped with one second oblique surface further, this second oblique surface and the first oblique surface are for arrange in the same way, one lid is also equiped with at the second air port place, and this lid includes long square plate and a plural rib, one end of each rib is connected to four angles of long square plate, the other end is connected to the mouth wall in the second air port, and make long square plate and the second air port be that spacing is arranged,
One microcontroller, it is installed in exhausting body, this microprocessor control takes turns the running of turning, and be electrically connected with bath lavatory switch, this microcontroller includes a built-in timing control unit, when bathing lavatory switch open, and the startup that the wheel that namely microcontroller controls exhausting body is turned, after bath lavatory switch cuts out, the timing control unit control wheel of microcontroller is turned and close running after Preset Time.
2. bath lavatory according to claim 1 ventilation fan, it is characterized in that: on this exhausting body, be provided with a running instruction unit be electrically connected with microcontroller further, be used for showing the operating state of exhausting body, this running instruction unit includes a front running lamp and a stopping light, when bathing the switch open in lavatory, this front running lamp display light color is turned as operating condition to represent wheel, when bathing lavatory switch and closing, this front running lamp then can be turned enter late release operating state to show wheel in blink states, when wheel turn decommission completely time, this front running lamp then can jump to stopping light to show the inactive state of taking turns and turning.
3. bath lavatory according to claim 1 ventilation fan, is characterized in that: this timing control unit can decommissioning of turning of control wheel behind 5,10,20 or 30 minutes after bath lavatory switch cuts out.
4. bath lavatory according to claim 1 ventilation fan, is characterized in that: this timing control unit closes the running taken turns and turn behind 180 minutes when bathing lavatory switch open.
5. bath lavatory according to claim 1 ventilation fan, is characterized in that: this microcontroller further in have a wet control unit, this wet control unit is bathing the running that when moisture in lavatory exceeds default value, starter cup is turned.
6. bath lavatory according to claim 1 ventilation fan, it is characterized in that: in this microcontroller is further, have a hotness unit, this hotness unit is closed condition at bath lavatory switch, and when inside has people to enter, the running that when this hotness unit detects thermal source, starter cup is turned.
7. bath lavatory according to claim 2 ventilation fan, is characterized in that: the corresponding front running lamp of this capping and stopping light place offer two open-works further, and this front running lamp and the local of stopping light expose to outside each corresponding open-work.
8. bath lavatory according to claim 1 ventilation fan, is characterized in that: the gradient of this first oblique surface is greater than the gradient of the second oblique surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347328.0A CN104213619B (en) | 2014-07-21 | 2014-07-21 | Bath lavatory ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347328.0A CN104213619B (en) | 2014-07-21 | 2014-07-21 | Bath lavatory ventilation fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104213619A CN104213619A (en) | 2014-12-17 |
| CN104213619B true CN104213619B (en) | 2016-03-02 |
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ID=52095501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410347328.0A Expired - Fee Related CN104213619B (en) | 2014-07-21 | 2014-07-21 | Bath lavatory ventilation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104213619B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2769475B2 (en) * | 2018-12-21 | 2021-10-21 | Soler & Palau Res Sl | DOUBLE AIR INLET EXTRACTOR |
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|---|---|---|---|---|
| US4133060A (en) * | 1977-05-18 | 1979-01-09 | Wayne Webb | Odorless toilet |
| ES2251878A1 (en) * | 2004-10-26 | 2006-05-01 | Soler Y Palau, S.A. | Axial flow air extractor for bathrooms and similar |
| GB2426791A (en) * | 2005-05-31 | 2006-12-06 | Greenwood Air Man Ltd | Combination extractor fan and light unit |
| CN1308629C (en) * | 2003-11-11 | 2007-04-04 | 三洋电机株式会社 | Air exchanging fan for passage |
| CA2442046C (en) * | 2003-09-17 | 2008-12-09 | Peter Yeung | Bathroom ventilation fan |
| CN201433923Y (en) * | 2009-05-22 | 2010-03-31 | 陈永华 | Airflow radiating device of ceiling air-condition circulator |
| CN201486912U (en) * | 2009-09-04 | 2010-05-26 | 博麟水电材料有限公司 | Bathroom ventilation controlling device |
| CN202391766U (en) * | 2011-12-09 | 2012-08-22 | 中山市欧帝尔电器照明有限公司 | Novel multifunctional exhaust fan |
| CN102979742A (en) * | 2012-12-13 | 2013-03-20 | 庄森安 | Auto-induction type fog exhaust fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8836257B2 (en) * | 2008-10-09 | 2014-09-16 | Bsh Home Appliances Corporation | Household appliance including a fan speed controller |
-
2014
- 2014-07-21 CN CN201410347328.0A patent/CN104213619B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133060A (en) * | 1977-05-18 | 1979-01-09 | Wayne Webb | Odorless toilet |
| CA2442046C (en) * | 2003-09-17 | 2008-12-09 | Peter Yeung | Bathroom ventilation fan |
| CN1308629C (en) * | 2003-11-11 | 2007-04-04 | 三洋电机株式会社 | Air exchanging fan for passage |
| ES2251878A1 (en) * | 2004-10-26 | 2006-05-01 | Soler Y Palau, S.A. | Axial flow air extractor for bathrooms and similar |
| GB2426791A (en) * | 2005-05-31 | 2006-12-06 | Greenwood Air Man Ltd | Combination extractor fan and light unit |
| CN201433923Y (en) * | 2009-05-22 | 2010-03-31 | 陈永华 | Airflow radiating device of ceiling air-condition circulator |
| CN201486912U (en) * | 2009-09-04 | 2010-05-26 | 博麟水电材料有限公司 | Bathroom ventilation controlling device |
| CN202391766U (en) * | 2011-12-09 | 2012-08-22 | 中山市欧帝尔电器照明有限公司 | Novel multifunctional exhaust fan |
| CN102979742A (en) * | 2012-12-13 | 2013-03-20 | 庄森安 | Auto-induction type fog exhaust fan |
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| CN104213619A (en) | 2014-12-17 |
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Granted publication date: 20160302 Termination date: 20190721 |