CN204853950U

CN204853950U - Heating scavenger fan

Info

Publication number: CN204853950U
Application number: CN201520576614.4U
Authority: CN
Inventors: 黄伟扬; 袁洪坚; 曾广民; 杨敬涛
Original assignee: Panasonic Ecology Systems Guangdong Co Ltd
Current assignee: Panasonic Ecology Systems Guangdong Co Ltd
Priority date: 2015-07-31
Filing date: 2015-07-31
Publication date: 2015-12-09
Anticipated expiration: 2025-07-31
Also published as: TWM534251U

Abstract

The utility model provides a heating scavenger fan, includes: the body, install this internal fan and heater, locate air intake and air outlet on the body the body air outlet department is equipped with the wind direction board, the wind direction board contains the guide vane to inclination slopes different more than two kinds or two kinds, wherein, is close to air inlet oral -lateral, and court the slope of air intake direction the guide vane is first guide vane, keeps away from air inlet oral -lateral, and court the slope of air intake opposite direction the guide vane is the second guide vane, first guide vane with the second guide vane is compared, and inclination is less. The utility model has the advantages of, can prevent the return air short circuit, it is regional to enlarge the air supply again, improves user's comfort level.

Description

Heating and ventilating fan

Technical field

The utility model is about a kind of heating and ventilating fan.

Background technology

Fig. 1 is known heating and ventilating fan schematic diagram.Heating and ventilating fan is a kind of common heating system.Disclosing a kind of heating and ventilating fan in Chinese patent CN200820133997.8, as shown in Figure 1, is known heating and ventilating fan 1.Comprise body 2, be arranged on the blower fan 3 of the heating in body 2, the blower fan 3 ' of ventilation and heater 4, be located at air inlet 5 on body 2 and air outlet 6, be provided with wind direction board 7 at air outlet 6 place of body 2, wind direction board 7 comprise a plurality of guide vane 8.

During the heating mode operation of heating and ventilating fan 1, under the effect of blower fan 3, room air enters in body 2 by the air inlet 5 of body 2, and after heater 4 heats, become warm braw, the guide vane 8 along the wind direction board 7 at air outlet 6 place flows to indoor.

Again be inhaled into blower fan 3 from air inlet 5 at once after being blown out from air outlet 6 by a part of warm braw after heating and enter in body 2 (i.e. so-called return air short circuit), the temperature controller (not shown) in heater 4 likely makes heater 4 out of service because the warm braw of higher temperature being detected.Institute thinks and avoids return air short circuit, and guide vane 8 is unified to tilt towards the direction contrary with air inlet 5, and warm braw all blows out to away from air inlet 5 direction under the guiding of guide vane 8.

Such heating and ventilating fan 1 can only, toward a direction air-supply, cause indoor warm braw circulation rate slow, and the warm weak effect of speed, local temperature is low.

Utility model content

The purpose of this utility model is, spy provides a kind of heating and ventilating fan, can prevent return air short circuit, can expand again air-supply region, raising users'comfort.

For achieving the above object, the utility model provides a kind of heating and ventilating fan, comprise: body, be arranged on described intrinsic blower fan and heater, be located at the air inlet on described body and air outlet, wind direction board is provided with at the described air outlet place of described body, described wind direction board comprises the guide vane to two or more different inclined at inclination angles, wherein, near described air inlet side, and the described guide vane tilted towards described air inlet direction is the first guide vane, away from described air inlet side, and be the second guide vane towards the described guide vane that described air inlet rightabout tilts, described first guide vane is compared with described second guide vane, angle of inclination is less.

The utility model has the advantage of, return air short circuit can be prevented, air-supply region can be expanded again, improve users'comfort.

Accompanying drawing explanation

Fig. 1 is known heating and ventilating fan schematic diagram;

Fig. 2 is total schematic diagram of embodiment heating and ventilating fan (inside) of the present utility model;

Fig. 3 is the A-A line sectional view of Fig. 2;

Fig. 4 is the schematic diagram of the wind direction board of embodiment heating and ventilating fan of the present utility model;

Fig. 5 is the B-B line sectional view in Fig. 4;

Fig. 6 is embodiment temperature rise test test result figure of the present utility model.

Detailed description of the invention

Fig. 2 is total schematic diagram of embodiment heating and ventilating fan (inside) of the present utility model; Fig. 3 is the A-A line sectional view of Fig. 2; Fig. 4 is the schematic diagram of the wind direction board of embodiment heating and ventilating fan of the present utility model; Fig. 5 is the B-B line sectional view in Fig. 4.

As shown in the figure, a kind of heating and ventilating fan 10 of the present utility model, comprising: body 2, be arranged on the blower fan 3 of the heating in described body 2, the blower fan 3 ' of ventilation and heater 4, be located at air inlet 5 on described body 2 and air outlet 6.Wind direction board 70 is provided with at described air outlet 6 place of described body 2, described wind direction board 70 comprises the guide vane to two or more different inclined at inclination angles, wherein, near described air inlet 5 side, and the described guide vane tilted towards described air inlet 5 direction is the first guide vane 71.Away from described air inlet 5 side, and be the second guide vane 72 towards the described guide vane that described air inlet 5 rightabout tilts, described first guide vane 71 compared with described second guide vane 72, angle of inclination less (aftermentioned explanation).

Described angle of inclination, refer to guide vane with and the vertical longitudinal straight line in level ground between angle.

Embodiment of the present utility model is described for the heating and ventilating fan 10 be installed in bathroom.Because wind direction board 70 comprises the guide vane to two or more different inclined at inclination angles, so can be blown out along the guide vane of differing tilt angles by the warm braw after heating, warm braw is made directly to blow to the different corners in bathroom.No matter the diffusion of acceleration warm braw is lavatory or wash one's face and rinse one's mouth place etc., can provide the environment that warm.

In addition, the second guide vane 72 tilts to the rightabout of air inlet 5, and warm braw blows out along the second guide vane 72 towards the opposition side of air inlet 5.Even if so the angle of inclination C of the second guide vane 72 arranges larger, warm braw is all less likely to occur return air short circuit.

In addition, more as shown in Figure 5, the angle of inclination D of the first guide vane 71 is compared with the angle of inclination C of the second guide vane 72, and angle is less.For another example shown in Fig. 3, Fig. 5, warm braw along the first guide vane 71 to blow to indoor close to the direction on vertical-horizontal ground, so both made the warm braw of a part spread to air inlet 5 direction with the degree not arriving air inlet 5 place as far as possible, again because blowout angle is little, and be difficult to again be sucked in body 2 from air inlet 5 at once by blower fan 3.And the angle of inclination C of the second guide vane 72 is arranged to the angle of inclination D being greater than the first guide vane 71, the warm braw blown out along the first guide vane 71 and the second guide vane 72 respectively would not concentrate too much on the direction close to vertical ground, can expand air-supply as much as possible.Therefore realize warm braw diffusion, user will be caused uncomfortable because of local temperature is too high.

If the angle of inclination D of the first guide vane 71 is greater than 10 degree, warm braw will blow to air inlet 5 at once after air outlet 6 blows out.By being arranged to be less than or equal to 10 degree, warm braw can along the first guide vane 71 to blow to indoor close to the direction on vertical-horizontal ground, so be greater than 10 degree and compare, the wind of blowout and warm braw major part can blow to the indoor of the below vertical with level ground as the crow flies, thus be difficult to again be sucked in body 2 from air inlet 5 at once by blower fan 3, prevent return air short circuit.Expand air-supply region further thus.

The angle of inclination of described second guide vane 72 is more than or equal to 15 degree, to be formed with the first guide vane 71 at a distance of larger wind direction, make between the warm braw that blows out along the second guide vane 72 and warm braw blow out along the first guide vane 71, to be parallel to the distance of level ground longer, expand region of blowing.

The angle of inclination C of the second guide vane 72 is controlled in the scope being less than or equal to 30 degree, prevents because angle of inclination is excessive, cause the wind rotational angle that blown out by blower fan 3 excessive, windage is excessive.Air quantity can be guaranteed like this.

The quantity of number ratio second guide vane 72 of the first guide vane 71 is few.As above, the angle of inclination of the first guide vane 71 is less, blows to indoor warm braw blow out with the direction close to vertical-horizontal ground along the first guide vane 71.Because the quantity of number ratio second guide vane 72 of the first guide vane 71 is few, so less than the second guide vane 72 along the warm braw air quantity of the first guide vane 71 outflow.When avoiding heating and ventilating fan 10 to be arranged on bathing areas, more warm braw directly blows to user, brings sense of discomfort.Also improve comfort thus.

The length of the first guide vane 71 is different, and the length of the second guide vane 72 is different, and both are all more longer toward intermediate length.By said structure, warm braw can blow to different places along each guide vane 71,72, namely can blow to the direction, corner in bathroom.

And the guide vane 71,72 being positioned at both sides is shorter than guide vane 71,72 length being positioned at central authorities, so be on the direction that level ground is vertical higher along the wind of both sides guide vane 71,72 blowout than the wind blown out along central guide vane 71,72, the wind blown out along central guide vane 71,72 can not be hindered.Prevent air quantity from reducing.

Fig. 6 is embodiment temperature rise test test result figure of the present utility model.In this temperature rise test, the angle of inclination of the first guide vane 71 is 10 degree, and the test result when angle of inclination of the second guide vane 72 is 20 degree.What Fig. 6 showed is the variations in temperature that immediately below (E), bathroom, (F) and the place of changing one's clothes (G) measures respectively immediately below heating and ventilating fan 10.Different curve table is shown in the temperature that on the direction vertical with level ground, differing heights place is measured.Thick line represents mean temperature result.Under the results contrast of numerous experiment, above-mentioned angle can reach best effect.Immediately below heating and ventilating fan 10, the mean temperature of (E) is 32 DEG C, and by comparison, immediately below bathroom, the mean temperature of (F) is 32 DEG C, is consistent substantially.And the place of changing one's clothes (G) departing from bathroom has been only also low 4 DEG C, it is 28 DEG C.Also the air-supply region expanded of warm braw is just demonstrated.

Claims

1. a heating and ventilating fan, comprise: body, be arranged on described intrinsic blower fan and heater, be located at the air inlet on described body and air outlet, wind direction board is provided with at the described air outlet place of described body, it is characterized in that: described wind direction board comprises the guide vane to two or more different inclined at inclination angles, wherein, near described air inlet side, and the described guide vane tilted towards described air inlet direction is the first guide vane, away from described air inlet side, and be the second guide vane towards the described guide vane that described air inlet rightabout tilts, described first guide vane is compared with described second guide vane, angle of inclination is less.

2. heating and ventilating fan according to claim 1, is characterized in that: the angle of inclination of described first guide vane is less than or equal to 10 degree.

3. heating and ventilating fan according to claim 1 and 2, is characterized in that: the angle of inclination of described second guide vane is more than or equal to 15 degree and is less than or equal to 30 degree.

4. heating and ventilating fan according to claim 1, is characterized in that: described in the number ratio of described first guide vane, the quantity of the second guide vane is few.

5. heating and ventilating fan according to claim 1, is characterized in that: the length of described first guide vane is different, and the length of described second guide vane is different, and both are all more longer toward intermediate length.