CN109057666B - Exhaust fan - Google Patents
Exhaust fan Download PDFInfo
- Publication number
- CN109057666B CN109057666B CN201810921960.XA CN201810921960A CN109057666B CN 109057666 B CN109057666 B CN 109057666B CN 201810921960 A CN201810921960 A CN 201810921960A CN 109057666 B CN109057666 B CN 109057666B
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- CN
- China
- Prior art keywords
- fan
- fan body
- air
- air guide
- exhaust
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B7/10—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses by special construction of the frame members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B2007/023—Air flow induced by fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/20—Details or features not otherwise provided for mounted in or close to a window
Abstract
The invention discloses an exhaust fan, which comprises a fan body and a fan, wherein the fan body is attached to the edge of a window frame or a door frame, an air channel is arranged in the fan body, a mounting seat is arranged on one side of the fan body, a communication hole used for being communicated with the air channel is formed in the mounting seat, an outlet of the fan is connected with the communication hole of the mounting seat, and the fan body is provided with an air outlet. The exhaust fan provided by the invention supplies air through the fan positioned on the outer side of the door frame or the window frame, and the air is introduced into a room through the fan body to complete indoor ventilation. The fan body is connected with the window frame or the door frame, and the volume of the fan body is obviously smaller than that of an exhaust fan in the prior art because the center of the fan body is not provided with fan blades, a motor and other parts, so that the shielding of doors and windows can be obviously reduced, and the influence on indoor lighting is small.
Description
Technical Field
The invention relates to the technical field of ventilation equipment, in particular to an exhaust fan.
Background
The exhaust fan is generally installed at a door, a window, etc. for forming convection between indoor and outdoor, replacing indoor air, and keeping indoor air fresh. However, the exhaust fan in the prior art usually occupies a large space at the positions of doors, windows and the like, which seriously affects the indoor lighting and also limits the use occasions of the exhaust fan. The exhaust fan in the prior art is generally applied to rooms with low lighting requirements, such as toilets and bathrooms. In rooms with denser persons or rooms with long-term staying of persons, such as bedrooms and classrooms, exhaust fans are often required to be installed to promote air circulation, but the exhaust fans in the prior art obviously cannot meet the requirements of lighting and exhausting at the same time.
Therefore, how to provide an exhaust fan without affecting the indoor lighting is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an exhaust fan, wherein fan blades are not arranged in a fan body of the exhaust fan, and the influence of the fan body on the lighting effect is very small.
In order to achieve the purpose, the invention provides an exhaust fan which comprises a fan body and a fan, wherein the fan body is attached to the edge of a window frame or a door frame, an air channel is formed in the fan body, a mounting seat is arranged on one side of the fan body, a communication hole used for being communicated with the air channel is formed in the mounting seat, the outlet of the fan is connected with the communication hole of the mounting seat, and the fan body is provided with an air outlet.
Preferably, the fan body comprises an installation surface and an air guide surface, the installation surface is connected with the front end of the air guide surface, the tail end of the installation surface is provided with an arc-shaped curved surface bending towards the air guide surface, and the tail end of the arc-shaped curved surface is positioned on the outer side of the air guide surface and is parallel to the air guide surface.
Preferably, the fan body is a rectangular frame-shaped structure, and the distance between the air guide surfaces on both sides of the fan body is gradually reduced in the direction toward the indoor space.
Preferably, the tail end of the air guide surface is provided with a front air guide part bent towards the mounting surface, and the distance between the arc-shaped curved surface and the front air guide part is gradually reduced towards the air outlet.
Preferably, a preset angle is formed between a tangent line at the tail end of the air guide surface and an axis of the fan body, and the preset angle is smaller than or equal to 80 degrees.
Preferably, a grid is arranged between the arc-shaped curved surface and the front air guide part.
Preferably, the fan body is provided with an air inlet penetrating through the fan body along the thickness direction, and the position of the communication hole corresponds to the air inlet.
Preferably, the cross-sectional area of the communication hole is tapered in a direction toward the fan body.
Preferably, the mounting base comprises an annular fixing ring, the fixing ring is arranged along the horizontal direction, the fan is fixed in the fixing ring, and a mounting bottom plate used for being fixed with a wall body is arranged on one side of the fixing ring.
Preferably, the mounting seat is further provided with a rain cover.
The exhaust fan provided by the invention comprises a fan body and a fan, wherein the fan body is attached to the edge of a window frame or a door frame, the fan body is connected with the fan through a mounting seat, an air channel is arranged in the fan body, the mounting seat is provided with a communication hole which is communicated with the air channel, the outlet of the fan is connected with the communication hole of the mounting seat, the fan conveys air into the air channel of the fan body from the communication hole, the fan body is also provided with an exhaust hole which is communicated with the air channel, and the air is exhausted from the exhaust hole, so that the aim of ventilating indoors is fulfilled.
Because the exhaust fan is located door and window's edge, with door and window or window frame laminating, the wind channel of exhaust fan is located the fan body, and the fan body is very little to door and window's sheltering from, and light can normally jets into indoorly from door and window, has reduced the influence of exhaust fan to indoor daylighting, realizes the purpose of indoor taking a breath under the prerequisite of guaranteeing the daylighting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of an exhaust fan according to the present invention;
FIG. 2 is a schematic view of the structure of the exhaust fan and the window frame of the present invention;
FIG. 3 is a cross-sectional view of a fan;
fig. 4 is a partial view of the fan body.
Wherein the reference numerals in fig. 1 to 4 are:
the fan comprises a fan body 1, a fan 2, a mounting seat 3, a window frame 4, a wall body 5, a mounting surface 11, an air guide surface 12, an air duct 13, an arc-shaped curved surface 14, a front air guide part 15, an air exhaust channel 16, an air exhaust outlet 17, a grating 18 and a communication hole 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of an exhaust fan according to the present invention;
FIG. 2 is a schematic view of the structure of the exhaust fan and the window frame of the present invention;
FIG. 3 is a cross-sectional view of a fan;
fig. 4 is a partial view of the fan body.
The exhaust fan provided by the invention comprises a fan body 1 and a fan 2, wherein the fan body 1 is arranged in a window frame 4 or a door frame and can be connected with the edge of the window frame 4 or the door frame in a bolt connection, welding or clamping connection mode, and the like, the fan 2 is arranged on the outer side of the window frame 4 or the door frame, the fan body 1 is approximately tubular, an air outlet 17 is arranged on the fan body 1, the fan 2 extracts outdoor air and leads the air into the fan body 1, and finally the air is led into a room through the air outlet 17, so that indoor ventilation is realized. Of course, the fan 2 may be disposed indoors, and the fan body 1 discharges indoor air to the outside to realize indoor ventilation, but the noise of the fan 2 may be large, which easily affects indoor personnel, and therefore, the fan 2 is disposed outdoors in a preferred embodiment of the present invention.
Specifically, the fan body 1 may be in a shape of a strip, a tube or a frame, and has an air duct 13 therein, the air duct 13 extends along the inside of the fan body 1, so that the air can flow along the inside of the fan body 1, one side of the fan body 1 is provided with the mounting base 3, the mounting base 3 is provided with a communication hole 31 communicated with the air duct 13, the outlet of the fan 2 is connected with the communication hole 31 of the mounting base 3, the fan body 1 has an air outlet 17 facing the indoor, and the fan 2 draws outdoor air and discharges the air into the indoor through the air outlet 17.
In this embodiment, the exhaust fan supplies air through the fan 2 located outside the door frame or window frame 4, and the air is introduced into the room through the fan body 1, thereby completing indoor ventilation. The fan body 1 is connected with the window frame 4 or the door frame, and because the center of the fan body 1 is not provided with fan blades, a motor and other parts, the volume of the fan body is obviously smaller than that of an exhaust fan in the prior art, the shielding of the door and the window can be obviously reduced, and the influence on indoor lighting is small.
Optionally, the fan body 1 includes a mounting surface 11 and a wind guiding surface 12, in an embodiment of the present invention, the fan body 1 is a rectangular frame-shaped structure, as shown in fig. 1 and 2, the mounting surface 11 is an outer side surface of the frame-shaped structure, the wind guiding surface 12 is an inner side surface of the frame-shaped structure, and the mounting surface 11 is attached to the door frame or the window frame 4.
Specifically, the fan body 1 and the window frame 4 or the door frame can be connected in an interference fit manner, and the distance between the air guide surfaces 12 on the two sides of the fan body 1 is gradually reduced along the indoor direction, so that the outer side of the frame-shaped structure is tapered, and the fan body 1 can be conveniently embedded into the window frame 4 or the door frame. Of course, the fan body 1 may also be provided with a connecting lug extending outwards, and fixed with the door frame or window frame 4 through the connecting lug.
As shown in fig. 3, the mounting surface 11 is connected to the front end of the air guide surface 12, and a gap is provided between the mounting surface 11 and the air guide surface 12, the gap is an air duct 13, and air introduced by the fan 2 can flow along the air duct 13. Obviously, the mounting surface 11 has a first preset distance from the end of the wind guide surface 12. The tail end of the mounting surface 11 is provided with an arc-shaped curved surface 14 which is bent towards the air guide surface 12, the tail end of the arc-shaped curved surface 14 extends to the outer side of the air guide surface 12 and is parallel to the air guide surface 12, a gap is formed between the tail end of the arc-shaped curved surface 14 and the air guide surface 12, the gap is an air outlet 17, and the width of the gap is a second preset distance. The curved surface 14 can adjust the flow direction of the air, so that the air can flow along the air guide surface 12. In addition, the shape of the air guide surface 12 can refer to a coanda curved surface, so that air can further flow along the air guide surface 12.
In addition, the tail end of the air guide surface 12 can be further provided with a preposed air guide part 15 bending towards the mounting surface 11, the preposed air guide part 15 is positioned on the inner side of the arc-shaped curved surface 14, the preposed air guide part 15 and the arc-shaped curved surface 14 form an air exhaust channel 16, the distance between the arc-shaped curved surface 14 and the preposed air guide part 15 is the width of the air exhaust channel 16, the width of the position of the air exhaust channel 16 closer to the air exhaust port 17 is smaller, namely the second preset distance is smaller than the first preset distance. The exhaust passage 16 adopts a necking structure, so that the air speed can be higher when the air is exhausted, and the mobility of the indoor air is further improved. Of course, in order to ensure smooth airflow, the edges of the front air guiding part 15 are all in round transition.
Of course, the window sash 1 of the present embodiment may be disposed on the indoor side of the window frame 4, and the glass may be disposed on the outdoor side of the window frame 4. Of course, the fan body 1 can be arranged at one side of the outdoor, the window is opened when ventilation is needed, and the indoor ventilation effect is enhanced through the exhaust fan.
Furthermore, a preset angle is formed between a tangent line at the tail end of the air guide surface 12 and an axis of the fan body 1, and it should be noted that the axis of the fan body 1 refers to an axis of the rectangular frame structure, which is perpendicular to a plane where the fan body 1 is located. The preset angle is less than or equal to 80 degrees, so that the direction of the air flow sprayed out from the air outlet 17 is ensured to face indoors. Among them, a preferable angle is 20 °, and at this angle, the air flow of the entire fan body 1 is collected toward the center of the fan body 1, and the amount of exhaust air can be increased, thereby promoting the flow of indoor air.
In addition, a grating 18 perpendicular to the arc-shaped curved surface 14 can be arranged between the arc-shaped curved surface 14 and the preposed air guide part 15, two ends of the grating 18 are respectively connected with the arc-shaped curved surface 14 and the preposed air guide part 15, and the grating 18 is uniformly arranged along the air outlet 17. On one hand, the grid 18 can support the arc-shaped curved surface 14, so that the strength of the fan body 1 is improved; on the other hand, the grille 18 can reduce the circumferential flow of the air flow in the air exhaust channel 16, increase the stability of the air flow, reduce the turbulence loss of the area near the air exhaust port 17, and further increase the ventilation quantity. Of course, the larger the gap of the slit-shaped high-pressure air outlet, the higher the density of the required grating 18.
In this embodiment, the fan body 1 has a rectangular frame structure, the outer side of the frame structure is a mounting surface 11, the inner side of the frame structure is a wind guide surface 12, the mounting surface 11 is provided with an arc-shaped curved surface 14, the wind guide surface 12 is provided with a front wind guide portion 15, and a gap is provided between the arc-shaped curved surface 14 and the wind guide surface 12, and the gap is a wind outlet 17. The arc-shaped curved surface 14 and the preposed air guide part 15 can improve the flow velocity of air flow in the process that air flows out of the fan body 1, and further improve the mobility of indoor air.
The fan 2 is connected with the fan body 1 through the mounting base 3, as shown in fig. 4, an air inlet penetrating through the side wall of the fan body 1 along the thickness direction is arranged, and the position of the communication hole 31 corresponds to the position of the air inlet, so that the communication hole 31 is communicated with the air duct 13. When the fan 2 is connected with the mounting base 3, the outlet of the fan 2 is hermetically connected with the side wall of the communicating hole 31, so that the air outlet of the fan 2 can flow into the air duct 13. Specifically, the outlet of the fan 2 and the communication hole 31 can be connected by flange connection, socket connection or clamping connection.
Alternatively, the cross-sectional area of the communication hole 31 is gradually reduced in a direction toward the fan body 1, so that the pressure of the gas is converted into kinetic energy, and the fluidity of the gas is improved. In addition, the communication hole 31 and the air duct 13 can be transited through an arc, so that the kinetic energy loss of the gas entering the air duct 13 is reduced.
In addition, for with fan 2 installation fixed, still include annular retainer plate in the mount pad 3, the fan body 1 sets up along vertical direction usually, and the retainer plate sets up along the horizontal direction, and the periphery of fan 2 can be located to the retainer plate cover, is fixed in the retainer plate with fan 2.
Specifically, the retainer plate can include the two semicircle clamps, and the one end of clamp is articulated, and bolted connection is passed through to the other end, when fan 2 set up in the retainer plate, can screw up the bolt and increase the pressure between clamp and fan 2 to it is fixed with fan 2. In addition, one side of the fixed ring is provided with a mounting bottom plate, the mounting bottom plate is welded with the clamp, mounting holes are formed in two ends of the mounting bottom plate, and the mounting bottom plate and the wall body 5 can be fixed through expansion bolts.
In addition, because fan 2 sets up outdoor usually, takes place to damage for avoiding fan 2 to be drenched by sleet, fan 2 can adopt rain-proof fan. Certainly, the mounting base 3 can also be provided with a rain cover, and the fan 2 is fixed in the rain cover to prevent rain and snow from wetting the fan 2.
In this embodiment, the cross-sectional area of the communication hole 31 is gradually reduced in a direction approaching the fan body 1, so that kinetic energy of the gas entering the air duct 13 can be increased, and the fluidity of the gas can be increased. The mount pad 3 still is equipped with retainer plate and rain-proof cover, and the retainer plate is used for fixing fan 2, and rain-proof cover can prevent that sleet from causing the damage to fan 2, and then the life of extension air discharge fan.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The exhaust fan provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (5)
1. An exhaust fan is characterized by comprising a fan body (1) and a fan (2), wherein the fan body (1) is attached to a window frame (4) or the edge of the door frame, an air channel (13) is arranged inside the fan body (1), a mounting seat (3) is arranged on one side of the fan body (1), a communicating hole (31) used for being communicated with the air channel (13) is formed in the mounting seat (3), the outlet of the fan (2) is connected with the communicating hole (31) of the mounting seat (3), and the fan body (1) is provided with an exhaust outlet (17);
the fan body (1) comprises an installation surface (11) and an air guide surface (12), the installation surface (11) is connected with the front end of the air guide surface (12), the tail end of the installation surface (11) is provided with an arc-shaped curved surface (14) which is bent towards the air guide surface (12), and the tail end of the arc-shaped curved surface (14) is positioned on the outer side of the air guide surface (12) and is parallel to the air guide surface (12);
the fan body (1) is of a rectangular frame-shaped structure, the distance between the air guide surfaces (12) on two sides of the fan body (1) is gradually reduced towards the indoor direction, the tail ends of the air guide surfaces (12) are provided with front air guide parts (15) which are bent towards the installation surface (11), the distance between the arc-shaped curved surfaces (14) and the front air guide parts (15) is gradually reduced towards the air outlet (17), a preset angle is formed between the tangent of the tail ends of the air guide surfaces (12) and the axis of the fan body (1), the preset angle is equal to 20 degrees, and grids (18) are arranged between the arc-shaped curved surfaces (14) and the front air guide parts (15).
2. The exhaust fan according to claim 1, wherein the fan body (1) is provided with an air inlet penetrating in the thickness direction, and the communication hole (31) is located corresponding to the air inlet.
3. Exhaust fan according to claim 2, characterized in that the cross-sectional area of the communication hole (31) tapers in a direction towards the fan body (1).
4. The exhaust fan according to claim 3, wherein the mounting base (3) comprises an annular fixing ring, the fixing ring is arranged along a horizontal direction, the fan (2) is fixed in the fixing ring, and a mounting bottom plate for fixing with a wall (5) is arranged on one side of the fixing ring.
5. Exhaust fan according to claim 4, characterized in that the mounting (3) is further provided with a rain cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921960.XA CN109057666B (en) | 2018-08-14 | 2018-08-14 | Exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921960.XA CN109057666B (en) | 2018-08-14 | 2018-08-14 | Exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109057666A CN109057666A (en) | 2018-12-21 |
| CN109057666B true CN109057666B (en) | 2021-05-11 |
Family
ID=64683847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810921960.XA Active CN109057666B (en) | 2018-08-14 | 2018-08-14 | Exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109057666B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO347505B1 (en) | 2021-08-17 | 2023-11-27 | Maturitas As | A multifunctioning window airing system comprising a bladeless fan |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2658548B1 (en) * | 1990-02-21 | 1996-09-06 | Saint Gobain Vitrage Int | WINDOW WITH IMPROVED PARIETO-DYNAMIC EFFECT. |
| CN102080487B (en) * | 2011-03-04 | 2012-05-30 | 杭州行者工业产品设计事务所 | Fresh wind window frame |
| GB2493506B (en) * | 2011-07-27 | 2013-09-11 | Dyson Technology Ltd | A fan assembly |
| CN205314854U (en) * | 2015-11-11 | 2016-06-15 | 浙江瑞明节能科技股份有限公司 | A section bar frame structure that is used for outdoor side air to introduce |
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2018
- 2018-08-14 CN CN201810921960.XA patent/CN109057666B/en active Active
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| Publication number | Publication date |
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| CN109057666A (en) | 2018-12-21 |
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