CN102734866A - Air conditioner indoor unit and operation control method thereof - Google Patents
Air conditioner indoor unit and operation control method thereof Download PDFInfo
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- CN102734866A CN102734866A CN2011100924190A CN201110092419A CN102734866A CN 102734866 A CN102734866 A CN 102734866A CN 2011100924190 A CN2011100924190 A CN 2011100924190A CN 201110092419 A CN201110092419 A CN 201110092419A CN 102734866 A CN102734866 A CN 102734866A
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- snail tongue
- air conditioner
- indoor apparatus
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Abstract
The invention discloses an air-conditioning indoor unit and an operation control method thereof, wherein the air-conditioning indoor unit comprises a shell, a cross-flow fan and a volute tongue, wherein the cross-flow fan and the volute tongue are arranged in the shell, the air-conditioning indoor unit also comprises a driving motor, a transmission device, a master control circuit and a working condition detection element, the working condition detection element is electrically connected with the master control circuit, the master control circuit is electrically connected with the driving motor, the volute tongue is movably arranged in the shell, and the driving motor drives the volute tongue to move through the transmission device. The invention can effectively reduce the noise of the indoor unit of the air conditioner during working.
Description
Technical field
The invention belongs to field of air conditioning, be specifically related to a kind of indoor apparatus of air conditioner and progress control method thereof.
Background technology
Traditional indoor apparatus of air conditioner is as shown in Figure 1; It mainly comprises housing 1; In housing 1, be provided with parts such as cross flow fan 2, drip tray 8, at the inner flow passage wall formation snail tongue 3 of drip tray 8, the working mechanism of 3 pairs of indoor apparatus of air conditioner of this snail tongue plays crucial effects.
In cross flow fan 2 runnings; Air-flow strengthens through leaf blade acting speed; Because centrifugal action part air-flow directly impinges upon on the snail tongue 3 and produces the air shunting, most of air flows out air-conditioning internal machine, realizes the air-conditioning air-supply; The fraction air then is back to fan blade inside through the gap between cross flow fan 2 and the snail tongue 3, has therefore formed the eccentric vortex flow field of cross flow fan 2.
The intensity of eccentric vortex and determining positions the acting ability of cross flow fan 2, air-flow directly collides the tongue of snail tongue 3, the flow velocity of air-flow is decreased to and approaches zero from going out high speed behind the blade, produces the gas shock noise; And the fan blade Periodic Rotating causes impact noise to become the discrete rotational noise of rotation fundamental frequency and harmonics; Snail tongue 3 in the existing indoor apparatus of air conditioner all is actionless; When air flows when changing, cause snail tongue 3 place's job insecurities, produce tangible impact noise and microseismic noise.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, a kind of indoor apparatus of air conditioner and progress control method thereof are provided, the noise when the present invention can effectively reduce indoor apparatus of air conditioner work.
Its technical scheme is following.
A kind of indoor apparatus of air conditioner; Comprise housing, cross flow fan and snail tongue, cross flow fan and snail tongue are located in the housing, also include drive motors, transmission device, governor circuit and operating mode detecting element; Operating mode detecting element and governor circuit are electrically connected; Governor circuit and drive motors are electrically connected, and what the snail tongue was movable is located in the housing, and drive motors is through the motion of actuator drives snail tongue.
Describe in the face of the further technical scheme of the present invention down.
Be provided with guide groove in said enclosure interior, on said snail tongue, be provided with the guide part that matches with guide groove, guide part places in the guide groove and can slide with respect to guide groove.
The both sides of said guide groove are provided with connecting axle, are provided with the connecting hole that matches with connecting axle in the said housing, and connecting axle inserts in the connecting hole and with said guide groove and is fixed on the said housing.
Said transmission device comprises gear and bar shaped tooth, and gear cooperates with the bar shaped tooth, and gear is connected with said drive motors, and the bar shaped tooth is located on the said snail tongue.
Said snail tongue is-1 millimeter to-3 millimeters or 1 millimeter to 3 millimeters with respect to the distance that said guide groove moves.
In said housing, be provided with rotating shaft, said snail tongue is through in the said housing of being arranged at of this rotating shaft activity.
Said transmission device comprises driving tooth and driven tooth, and driving tooth is connected with said drive motors, driven tooth and said snail ankyloglossia, and the gear shaft of driven gear is said rotating shaft.
The angle that said snail tongue rotates with respect to said rotating shaft is that-1 degree to-3 degree or 1 are spent to 3 degree.
In said housing, also be provided with the detecting element that said cross flow fan is tested the speed, this detecting element is said operating mode detecting element.
On said snail tongue, be provided with pressure sensor, this pressure sensor is said operating mode detecting element.
A kind of indoor apparatus of air conditioner progress control method, this method comprise the steps: A, open operation, and cross flow fan rotates under the effect of wind dispelling motor; B, operating mode detecting element detect the operating condition of indoor apparatus of air conditioner, and indoor set operating condition signal is transferred to governor circuit; C, governor circuit receive indoor set operating condition signal, and control the operation of drive motors according to this indoor set operating condition signal; D, drive motors drive the motion of snail tongue through transmission device, to improve the airflow state of snail tongue.
Further, said operating mode detection signal is pressure signal or rotation speed of fan signal.
When said pressure signal changed 1 to 4 handkerchief, said snail tongue moved 1 to 3 millimeter.
Perhaps, when said pressure signal changed 1 to 4 handkerchief, said snail tongue rotated 1 to 3 degree.
Perhaps, when said rotation speed of fan signal changed 50 to 100 hertz, said snail tongue moved 1 to 3 millimeter.
Perhaps, when said rotation speed of fan signal changed 50 to 100 hertz, said snail tongue rotated 1 to 3 degree.
When said pressure signal increased, said snail tongue moved or rotates to the direction away from said cross flow fan, and the gap between said snail tongue and the cross flow fan is increased; When said pressure signal reduced, said snail tongue moved or rotates to the direction near said cross flow fan, and the gap between said snail tongue and the cross flow fan is reduced.
When said rotation speed of fan signal increased, said snail tongue moved or rotates to the direction away from said cross flow fan, and the gap between said snail tongue and the cross flow fan is increased; When said rotation speed of fan signal reduced, said snail tongue moved or rotates to the direction near said cross flow fan, and the gap between said snail tongue and the cross flow fan is reduced.
Facing advantage of the present invention or principle down describes:
1, when indoor apparatus of air conditioner was worked, the working condition of indoor apparatus of air conditioner transferred to governor circuit through the operating mode detecting element, and governor circuit moves through drive motors control snail tongue; And then regulate the gap between through-flow fan blade and the snail tongue, if the snail tongue room increases, all the other structures are constant; Then snail tongue wall static pressure increases, on the contrary, if the snail tongue room reduces; All the other structures do not change, and then snail tongue wall static pressure reduces, behind the adjusting snail tongue room; Can reduce owing to snail tongue wall static pressure increases the impact noise produces, and can reduce the suddenly big or suddenly small and microseismic noise of generation of snail tongue wall pressure;
2, when the snail tongue room is regulated, can adopt the mode of translation or rotation, when adopting translation mode, its range of translation is 1 to 6 millimeter, when adopting rotating manner, the angular range of its rotation is 1 to 6 degree;
3, the working condition signal that transmitted of operating mode detecting element can be wind dispelling rotating speed of motor signal; Can further confirm the pressure at snail tongue place through this rotating speed; And then pass through drive motors and regulate moving or rotating of snail tongue, the working condition signal that the operating mode detecting element is transmitted also can be the pressure signal of snail tongue.
Description of drawings
Fig. 1 is the structure chart of traditional indoor apparatus of air conditioner;
Fig. 2 is the structure chart of the embodiment of the invention one said indoor apparatus of air conditioner;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 is the structure chart of the embodiment of the invention two said indoor apparatus of air conditioner;
Fig. 5 is the partial enlarged drawing of Fig. 4;
Fig. 6 is in the traditional structure, the curve map of wind dispelling electric machine frequency and snail tongue tongue pressure;
Fig. 7 is in the structure of the present invention, the curve map of wind dispelling electric machine frequency and snail tongue tongue pressure;
Fig. 8 is the test point distribution map of snail tongue;
Fig. 9 is the time dependent pressure comparison diagram of B point of snail tongue;
Figure 10 is the time dependent pressure comparison diagram of G point of snail tongue;
Figure 11 is the time dependent pressure comparison diagram of I point of snail tongue;
Description of reference numerals:
1, housing, 2, cross flow fan, 3, the snail tongue, 4, gear, 5, the bar shaped tooth, 6, driving tooth, 7, driven tooth, 8, drip tray, 9, evaporimeter, 10, wind deflector, 11, guide groove, 12, connecting axle.
The specific embodiment
Be elaborated in the face of embodiments of the invention down.
Embodiment is just like Fig. 2, shown in Figure 3; A kind of indoor apparatus of air conditioner comprises housing 1, cross flow fan 2, evaporimeter 9, wind deflector 10 and snail tongue 3, and evaporimeter 9, cross flow fan 2 and snail tongue 3 are located in the housing 1; Also include drive motors, transmission device, governor circuit and operating mode detecting element; Operating mode detecting element and governor circuit are electrically connected, and governor circuit and drive motors are electrically connected, 3 movable being located in the housing 1 of snail tongue; And drive motors is through 3 motions of actuator drives snail tongue, and wind deflector 10 is located at the air outlet place of housing 1.
Wherein, be provided with guide groove 11 in said housing 1 inside, on said snail tongue 3, be provided with the guide part that matches with guide groove 11, guide part places in the guide groove 11 and can slide with respect to guide groove 11; The both sides of guide groove 11 are provided with connecting axle 12; Be provided with the connecting hole that matches with connecting axle 12 in the housing 1; Connecting axle 12 inserts in the connecting hole and with guide groove 11 and is fixed on the housing 1, and 11 pairs of snail tongues 3 of guide groove had both played the effect with guiding, played the effect of support again; Said transmission device comprises gear 4 and bar shaped tooth 5, and gear 4 cooperates with bar shaped tooth 5, and gear 4 is connected with said drive motors, and bar shaped tooth 5 is located on the said snail tongue 3; The distance that said snail tongue 3 moves with respect to said guide groove is 4 millimeters.
Said snail tongue 3 includes tongue, is provided with pressure sensor at said tongue, and this pressure sensor is said operating mode detecting element; Perhaps, in said housing 1, also be provided with the detecting element that said cross flow fan 2 is tested the speed, this detecting element is said operating mode detecting element.
In the present embodiment, the indoor apparatus of air conditioner progress control method comprises the steps: A, opens operation, and cross flow fan 2 rotates under the effect of wind dispelling motor; B, operating mode detecting element detect the operating condition of indoor apparatus of air conditioner, and indoor set operating condition signal is transferred to governor circuit; C, governor circuit receive indoor set operating condition signal, and control the operation of drive motors according to this indoor set operating condition signal; D, drive motors drive 3 motions of snail tongue through transmission device, to improve the airflow state of snail tongue 3.
The advantage of present embodiment is:
1, when indoor apparatus of air conditioner was worked, the working condition of indoor apparatus of air conditioner transferred to governor circuit through the operating mode detecting element, and governor circuit moves through drive motors control snail tongue 3; And then regulate the gap between through-flow fan blade and the snail tongue 3, if the snail tongue room increases, all the other structures are constant; Then snail tongue 3 tongue static pressure increase, on the contrary, if the snail tongue room reduces; All the other structures do not change, and then snail tongue 3 tongue static pressure reduce, behind the adjusting snail tongue room; Can reduce owing to snail tongue 3 tongue static pressure increase the impact noise produces, and can reduce the suddenly big or suddenly small and microseismic noise of generation of snail tongue 3 tongue pressure;
2, when the snail tongue room is regulated, can adopt translation mode, when pressure signal or the increase of rotation speed of fan signal; The snail tongue moves to the direction away from cross flow fan, the gap between said snail tongue and the cross flow fan is increased, when pressure signal increases 1 to 4 handkerchief; The snail tongue moves 1 to 3 millimeter; Perhaps, when the rotation speed of fan signal increased 50 to 100 hertz, the snail tongue moved 1 to 3 millimeter;
3, the working condition signal that transmitted of operating mode detecting element can be wind dispelling rotating speed of motor signal; Can further confirm the pressure at snail tongue 3 places through this rotating speed; And then pass through drive motors and regulate moving of snail tongue 3, the working condition signal that the operating mode detecting element is transmitted also can be the pressure signal of snail tongue 3 tongues.
Embodiment two in the present embodiment, is provided with rotating shaft 12 like Fig. 4, shown in Figure 5 in said housing 1, said snail tongue 3 is through these rotating shaft 12 movable being arranged in the said housing 1; Said transmission device comprises driving tooth 6 and driven tooth 7, and driving tooth 6 is connected with said drive motors, and driven tooth 7 is connected with said snail tongue 3, and the gear shaft of driven gear 6 is said rotating shaft 12; The principle of present embodiment is identical with embodiment one, does not do at this and gives unnecessary details.
In the present embodiment, when pressure signal or the increase of rotation speed of fan signal, the snail tongue rotates to the direction away from cross flow fan; Gap between said snail tongue and the cross flow fan is increased; When pressure signal increased 1 to 4 handkerchief, the snail tongue rotated 1 to 3 degree, perhaps; When the rotation speed of fan signal increased 50 to 100 hertz, the snail tongue rotated 1 to 3 degree.Same, when pressure signal or rotation speed of fan signal reduced, the snail tongue rotated to the direction near cross flow fan; Gap between said snail tongue and the cross flow fan is reduced; When pressure signal reduced 1 to 4 handkerchief, the snail tongue rotated 1 to 3 degree, perhaps; When the rotation speed of fan signal reduced 50 to 100 hertz, the snail tongue rotated 1 to 3 degree; Can reset as early as possible after can making the snail tongue away from cross flow fan like this, also reach the purpose that has reduced noise simultaneously.
Down in the face of traditional indoor apparatus of air conditioner structure, and embodiment one, embodiment two said structures compare:
1, improves front and back; The curve map of wind dispelling electric machine frequency and snail tongue 3 tongue pressure is respectively like Fig. 6, shown in Figure 7, and wherein, the wind dispelling electric machine frequency is Hz; The unit of tongue pressure is Pa; Contrast through Fig. 6, Fig. 7 can know that after the employing activity snail tongue 3, the pressure of snail tongue 3 tongues has obtained significantly reducing;
2, improve front and back; The time dependent pressure comparison diagram of the pressure at 3 three test point places of snail tongue such as Fig. 9, Figure 10 and shown in Figure 11, wherein, the unit of test point place pressure is Pa; The unit of time is second; Black triangle is depicted as the force value of respective detection point under the traditional structure, and filled squares is depicted as the force value of respective detection point under the embodiment one said structure, and open squares is depicted as the force value of respective detection point under the embodiment two said structures.Can know that through contrast after the employing activity snail tongue, the pressure of snail tongue 3 tongues has obtained significantly reducing.
More than be merely specific embodiment of the present invention, do not limit protection scope of the present invention with this; Any replacement and the improvement on the basis of not violating the present invention's design, done all belong to protection scope of the present invention.
Claims (18)
1. an indoor apparatus of air conditioner comprises housing, cross flow fan and snail tongue, and cross flow fan and snail tongue are located in the housing; It is characterized in that; Also include drive motors, transmission device, governor circuit and operating mode detecting element, operating mode detecting element and governor circuit are electrically connected, and governor circuit and drive motors are electrically connected; What the snail tongue was movable is located in the housing, and drive motors is through the motion of actuator drives snail tongue.
2. indoor apparatus of air conditioner according to claim 1 is characterized in that, is provided with guide groove in said enclosure interior, on said snail tongue, is provided with the guide part that matches with guide groove, and guide part places in the guide groove and can slide with respect to guide groove.
3. like the said indoor apparatus of air conditioner of claim 2, it is characterized in that the both sides of said guide groove are provided with connecting axle, be provided with the connecting hole that matches with connecting axle in the said housing, connecting axle inserts in the connecting hole and with said guide groove and is fixed on the said housing.
4. like the said indoor apparatus of air conditioner of claim 2, it is characterized in that said transmission device comprises gear and bar shaped tooth, gear cooperates with the bar shaped tooth, and gear is connected with said drive motors, and the bar shaped tooth is located on the said snail tongue.
5. like the said indoor apparatus of air conditioner of claim 2, it is characterized in that said snail tongue is-1 millimeter to-3 millimeters or 1 millimeter to 3 millimeters with respect to the distance that said guide groove moves.
6. indoor apparatus of air conditioner according to claim 1 is characterized in that in said housing, be provided with rotating shaft, said snail tongue is through in the said housing of being arranged at of this rotating shaft activity.
7. like the said indoor apparatus of air conditioner of claim 6, it is characterized in that said transmission device comprises driving tooth and driven tooth, driving tooth is connected with said drive motors, driven tooth and said snail ankyloglossia, and the gear shaft of driven gear is said rotating shaft.
8. like the said indoor apparatus of air conditioner of claim 6, it is characterized in that the angle that said snail tongue rotates with respect to said rotating shaft is that-1 degree to-3 degree or 1 are spent to 3 degree.
9. like each said indoor apparatus of air conditioner in the claim 1 to 8, it is characterized in that, in said housing, also be provided with the detecting element that said cross flow fan is tested the speed, this detecting element is said operating mode detecting element.
10. like each said indoor apparatus of air conditioner in the claim 1 to 8, it is characterized in that on said snail tongue, be provided with pressure sensor, this pressure sensor is said operating mode detecting element.
11. an indoor apparatus of air conditioner progress control method is characterized in that, this method comprises the steps: A, opens operation, and cross flow fan rotates under the effect of wind dispelling motor; B, operating mode detecting element detect the operating condition of indoor apparatus of air conditioner, and indoor set operating condition signal is transferred to governor circuit; C, governor circuit receive indoor set operating condition signal, and control the operation of drive motors according to this indoor set operating condition signal; D, drive motors drive the motion of snail tongue through transmission device, to improve the airflow state of snail tongue.
12. want 11 said indoor apparatus of air conditioner progress control methods, it is characterized in that said operating mode detection signal is pressure signal or rotation speed of fan signal like right.
13. want 12 said indoor apparatus of air conditioner progress control methods, it is characterized in that when said pressure signal changed 1 to 4 handkerchief, said snail tongue moved 1 to 3 millimeter like right.
14. want 12 said indoor apparatus of air conditioner progress control methods, it is characterized in that when said pressure signal changed 1 to 4 handkerchief, said snail tongue rotated 1 to 3 degree like right.
15. want 12 said indoor apparatus of air conditioner progress control methods, it is characterized in that when said rotation speed of fan signal changed 50 to 100 hertz, said snail tongue moved 1 to 3 millimeter like right.
16. want 12 said indoor apparatus of air conditioner progress control methods, it is characterized in that when said rotation speed of fan signal changed 50 to 100 hertz, said snail tongue rotated 1 to 3 degree like right.
17. want 12 said indoor apparatus of air conditioner progress control methods like right, it is characterized in that when said pressure signal increased, said snail tongue moved or rotates to the direction away from said cross flow fan, the gap between said snail tongue and the cross flow fan is increased; When said pressure signal reduced, said snail tongue moved or rotates to the direction near said cross flow fan, and the gap between said snail tongue and the cross flow fan is reduced.
18. want 12 said indoor apparatus of air conditioner progress control methods like right, it is characterized in that when said rotation speed of fan signal increased, said snail tongue moved or rotates to the direction away from said cross flow fan, the gap between said snail tongue and the cross flow fan is increased; When said rotation speed of fan signal reduced, said snail tongue moved or rotates to the direction near said cross flow fan, and the gap between said snail tongue and the cross flow fan is reduced.
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| CN2011100924190A CN102734866A (en) | 2011-04-13 | 2011-04-13 | Air conditioner indoor unit and operation control method thereof |
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| CN2011100924190A CN102734866A (en) | 2011-04-13 | 2011-04-13 | Air conditioner indoor unit and operation control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105066398A (en) * | 2015-08-06 | 2015-11-18 | 珠海格力电器股份有限公司 | Volute tongue device and air conditioner indoor unit comprising same |
| CN105805047A (en) * | 2015-01-20 | 2016-07-27 | 福特全球技术公司 | Blower assembly for a vehicle |
| CN105987024A (en) * | 2015-02-12 | 2016-10-05 | 宁波方太厨具有限公司 | Centrifugal fan with volute tongue capable of being adjusted dynamically |
| CN106246583A (en) * | 2016-08-19 | 2016-12-21 | 宁波方太厨具有限公司 | A kind of centrifugal blower and flow control methods thereof |
| CN104279650B (en) * | 2014-09-29 | 2017-02-01 | 美的集团武汉制冷设备有限公司 | Front panel component of outdoor unit of air conditioner |
| CN107576041A (en) * | 2017-10-30 | 2018-01-12 | 四川长虹空调有限公司 | Air-conditioning snail tongue, air conditioner room unit and air conditioner |
| CN108240354A (en) * | 2017-12-27 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of volute tongue and the centrifugal blower for being equipped with the volute tongue |
| CN108240353A (en) * | 2017-12-27 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of wind turbine noise reduction spiral tougue |
| CN108954754A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN110873450A (en) * | 2019-11-27 | 2020-03-10 | 宁波奥克斯电气股份有限公司 | Volute tongue structure and air conditioner |
| CN111076298A (en) * | 2019-11-27 | 2020-04-28 | 珠海格力电器股份有限公司 | Air conditioner assembly, regulation and control method and air conditioner |
| CN111911425A (en) * | 2020-06-30 | 2020-11-10 | 青岛海尔空调电子有限公司 | Centrifugal fans and air conditioners |
| CN111997936A (en) * | 2020-08-27 | 2020-11-27 | 华中科技大学 | Adjustable volute tongue device and cross-flow fan |
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| CN117386668A (en) * | 2023-12-07 | 2024-01-12 | 珠海格力电器股份有限公司 | Volute tongue assembly and air conditioner |
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| CN104279650B (en) * | 2014-09-29 | 2017-02-01 | 美的集团武汉制冷设备有限公司 | Front panel component of outdoor unit of air conditioner |
| RU2696106C2 (en) * | 2015-01-20 | 2019-07-31 | ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи | Pressure unit (embodiments), vehicle and method of changing air flow velocity in pressure unit |
| CN105805047A (en) * | 2015-01-20 | 2016-07-27 | 福特全球技术公司 | Blower assembly for a vehicle |
| CN105987024A (en) * | 2015-02-12 | 2016-10-05 | 宁波方太厨具有限公司 | Centrifugal fan with volute tongue capable of being adjusted dynamically |
| CN105066398B (en) * | 2015-08-06 | 2017-11-17 | 珠海格力电器股份有限公司 | Volute tongue device and air conditioner indoor unit comprising same |
| CN105066398A (en) * | 2015-08-06 | 2015-11-18 | 珠海格力电器股份有限公司 | Volute tongue device and air conditioner indoor unit comprising same |
| CN106246583A (en) * | 2016-08-19 | 2016-12-21 | 宁波方太厨具有限公司 | A kind of centrifugal blower and flow control methods thereof |
| CN107576041A (en) * | 2017-10-30 | 2018-01-12 | 四川长虹空调有限公司 | Air-conditioning snail tongue, air conditioner room unit and air conditioner |
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| CN108240354B (en) * | 2017-12-27 | 2024-04-02 | 宁波方太厨具有限公司 | Volute tongue and centrifugal fan provided with same |
| CN108240353B (en) * | 2017-12-27 | 2024-03-29 | 宁波方太厨具有限公司 | Noise-reducing volute tongue of fan |
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| CN108954754B (en) * | 2018-10-24 | 2023-09-15 | 奥克斯空调股份有限公司 | Air duct structure and air conditioner |
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| CN110873450A (en) * | 2019-11-27 | 2020-03-10 | 宁波奥克斯电气股份有限公司 | Volute tongue structure and air conditioner |
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Application publication date: 20121017 |