CN108019899B - Air-inducing control method for air conditioner - Google Patents

Air-inducing control method for air conditioner Download PDF

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CN108019899B
CN108019899B CN201610948974.1A CN201610948974A CN108019899B CN 108019899 B CN108019899 B CN 108019899B CN 201610948974 A CN201610948974 A CN 201610948974A CN 108019899 B CN108019899 B CN 108019899B
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air
induced
temperature
orifice plate
speed
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CN108019899A (en
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李波
付裕
王飞
张明杰
朱辉
任志强
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Abstract

The invention disclosesAn induced air control method of an air conditioner. The induced air control method of the air conditioner comprises the following steps: detecting the initial return air speed v0Temperature T of coil0And air outlet temperature T0And fan speed N0(ii) a Opening the second induced draft channel and making the initial return air speed v0And coil temperature T0Keeping the same; detecting the relation between the current outlet air temperature T x n and the set temperature T; and adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result. According to the induced air control method of the air conditioner, the flexibility of air outlet temperature control of the air conditioner can be improved, and the comfort of a human body is improved.

Description

Air-inducing control method for air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an induced air control method of an air conditioner.
Background
With the continuous development of science and technology, electronic technology has also gained rapid development, and the variety of electronic products is also more and more, and people also enjoy various conveniences brought by the development of science and technology. People can enjoy comfortable life brought by the development of science and technology through various types of electronic equipment. For example, electronic devices such as air conditioners have become an indispensable part of people's lives, and air conditioners are becoming more and more intelligent at present.
In the prior art, the indoor temperature and humidity can be controlled through an air conditioner in the prior art, and then a comfortable living environment is provided for a user. The air conditioner is refrigerating the in-process, generally can cause the air-out temperature lower, even the air-out temperature is comfortable temperature in fact, also can cause human body to feel the temperature lower, especially at the wobbling in-process of aviation baffle, the human body can feel suddenly cool suddenly hot, has further reduced the human experience in the use air conditioner process.
In an air conditioner, a new air-out mode is adopted, indoor air is introduced into the air-out position of a fan, the air after heat exchange of a heat exchanger is mixed with the original indoor air, the air-out after mixing is milder, more suitable human body feeling is realized, however, the indoor air is introduced into the air-out position of the fan, the influence on the air-out speed of the air conditioner is caused, the influence on the air-return speed of the air conditioner is further caused, the system pressure is changed before and after air introduction of the heat exchanger, and the working performance of the air conditioner is influenced.
Disclosure of Invention
The invention aims to provide an induced air control method of an air conditioner, which can improve the flexibility of air outlet temperature control of the air conditioner, avoid the change of system pressure before and after induced air of a heat exchanger and ensure the working performance of the air conditioner.
According to one aspect of the invention, an induced air control method of an air conditioner is provided, the air conditioner comprises a shell, an air inlet and an air outlet are arranged on the shell, the air outlet comprises a first air outlet positioned above and a second air outlet positioned below, a first axial fan is arranged in the shell corresponding to the first air outlet, a second axial fan is arranged in the shell corresponding to the second air outlet, an indoor heat exchanger is arranged at the air inlet, a second induced air channel is arranged on the side wall of the shell between the air inlet and the axial fan, a first pore plate and a second pore plate are superposed in the second induced air channel, and the first pore plate and the second pore plate move relatively to adjust the induced air area of the second induced air channel, the induced air control method comprises the following steps:
detecting the initial return air speed v0Temperature T of coil0And air outlet temperature T0And fan speed N0
Opening the second induced draft channel and making the initial return air speed v0And coil temperature T0Keeping the same;
detecting the current air-out temperature TnA relation with a set temperature T;
and adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result.
Preferably, the second induced air channel is opened, and the initial return air speed v is enabled0And coil temperature T0The step of maintaining the same includes:
controlling the second orifice plate to move relative to the first orifice plate so that the flow equalizing holes in the first orifice plate are at least partially overlapped with the flow equalizing holes in the second orifice plate;
the rotating speed of the axial flow fan corresponding to the second induced draft channel is adjusted to control the return air speed to keep the initial return air speed v0
Preferably, the step of adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result includes:
if the current outlet air temperature TnThe relation with the set temperature T satisfies Tn<T-a, controlling the second pore plate to move relative to the first pore plate, increasing the overlapping area of the uniform flow holes on the first pore plate and the uniform flow holes on the second pore plate, simultaneously increasing the rotating speed of the axial flow fan corresponding to the second induced air channel, and controlling the real-time return air speed vnAdjusted to the initial return air speed v0
Preferably, the step of adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result includes:
if the current outlet air temperature TnThe relation with the set temperature T satisfies TnAnd keeping the relative position of the first orifice plate and the second orifice plate in the current state.
Preferably, the step of adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result includes:
if the current outlet air temperature TnThe relation with the set temperature T satisfies Tn>T + a, controlling the second pore plate to move relative to the first pore plate, reducing the overlapping area of the uniform flow holes on the first pore plate and the uniform flow holes on the second pore plate, simultaneously reducing the rotating speed of the axial flow fan corresponding to the second induced air channel, and controlling the real-time return air speed vnAdjusted to the initial return air speed v0
Preferably, the assayMeasuring initial return air speed v0Temperature T of coil0And air outlet temperature T0And fan speed N0Before the step (2) further comprising:
and controlling the air conditioner to operate for t1 time to a stable operation stage after the air conditioner is started.
Preferably, the current outlet air temperature T is detected repeatedly at intervals of T2nTemperature T of coilnAnd the return air speed vnAnd fan speed NnThe step (2).
Preferably, a is 1 ℃.
The air-inducing control method of the air conditioner comprises a shell, wherein an air inlet and an air outlet are arranged on the shell, the air outlet comprises a first air outlet positioned above and a second air outlet positioned below, a first axial flow fan is arranged in the shell corresponding to the first air outlet, a second axial flow fan is arranged in the shell corresponding to the second air outlet, an indoor heat exchanger is arranged at the air inlet, a second air-inducing channel is arranged on the side wall of the shell between the air inlet and the axial flow fan, a first pore plate and a second pore plate are superposed in the second air-inducing channel, and the first pore plate and the second pore plate move relatively to adjust the air-inducing area of the second air-inducing channel, and the air-inducing control method comprises the following steps: detecting the initial return air speed v0Temperature T of coil0And air outlet temperature T0And fan speed N0(ii) a Opening the second induced draft channel and making the initial return air speed v0And coil temperature T0Keeping the same; detecting the current air-out temperature TnA relation with a set temperature T; and adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result. According to the induced air control method of the air conditioner, the air outlet temperature and the air outlet pressure are adjusted by adjusting the induced air quantity of the second induced air channel, the flexibility of air outlet temperature control is improved, the air return speed can be ensured, the system pressure before and after the induced air of the heat exchanger is unchanged, the overall performance of the air conditioner is not affected, the air conditioner can have a higher energy efficiency ratio, and a user can obtain better use experience.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic front view of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic side view of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic view of an internal structure of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a schematic top sectional view of an air conditioner according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a first orifice plate of an air conditioner according to an embodiment of the present invention;
fig. 6 is a control schematic diagram of an induced air control method of an air conditioner according to an embodiment of the present invention;
fig. 7 is a control flowchart of an induced air control method of an air conditioner according to an embodiment of the present invention.
Description of reference numerals: 1. a housing; 2. a first air outlet; 3. a second air outlet; 4. a first axial fan; 5. a second axial fan; 6. a first heat exchanger; 7. a second heat exchanger; 8. an induced draft channel; 9. a confluence notch; 10. a second induced draft channel; 11. a flow equalizing hole; 12. a first orifice plate; 13. a second orifice plate; 14. an induced air filter screen; 15. a first air induction port; 16. an outlet; 17. and a second induced draft opening.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
In the figure, the dotted line arrow is the air inducing direction, and the solid line arrow is the air outlet direction.
Referring to fig. 1 to 5 in combination, an air conditioner applying the induced air control method of the present invention includes a housing 1, an air inlet and an air outlet are provided on the housing 1, the air outlet includes a first air outlet 2 located above and a second air outlet 3 located below, a first axial fan 4 is provided in the housing 1 corresponding to the first air outlet 2, a second axial fan 5 is provided in the housing 1 corresponding to the second air outlet 3, an indoor heat exchanger is provided at the air inlet, a first induced air channel 8 is communicated between the side wall of the housing 1 between the air outlet and the axial fan and at least one air outlet, and a second induced air channel 10 is provided on the side wall of the housing between the heat exchanger and at least one axial fan.
When the air conditioner works in a refrigerating mode, the high-wind-speed air supply of the axial flow fan can be utilized to form a negative pressure area around the air outlet, indoor air can be introduced to the air outlet from the first air inducing channel 8 and is fully mixed with cold air blown out from the air outlet and then blown out, and the comfort degree of a human body when the air conditioner is used is improved. Meanwhile, due to the existence of the second induced air channel 10, when the axial flow fan rotates, indoor air can be introduced from the second induced air channel 10, so that the induced air volume can be further improved, the air outlet of the heat exchanger is mixed with the indoor air twice, and the air outlet of the air conditioner is more comfortable.
Because the first induced air channel 8 and the second induced air channel 10 are respectively positioned at the air inlet side and the air outlet side of the axial flow fan, the pressure at the two ends of the axial flow fan can be better ensured to be balanced, the pressure at the air inlet side of the axial flow fan can be supplemented through the second induced air channel 10, the air supply capacity of the axial flow fan is further improved, and the air outlet capacity of the air conditioner is improved.
The first air inducing channel 8 forms a cavity at the inner side of the front panel, so that the air inducing effect can be enhanced. Meanwhile, according to the air supply characteristic of the axial flow fan, the air supply at the top end of the fan blade is spiral, and the air supply is rectified through the air supply duct, so that the original spiral air supply is weakened, but a slight spiral exists at the outlet of the corresponding first air induction channel 8, so that the air inducted at the two sides and the mechanical wind energy blown out by the axial flow fan are sufficiently mixed, the mixed flow effect is improved, the uniformity of the air outlet temperature is ensured, and the problem of over-cooling of the air supply temperature is avoided.
Because the air outlet of the axial flow fan is always mixed with the induced air at the first induced air channel 8, even if the swing angle of the air deflector is adjusted, the fluctuation of the air supply temperature caused by air supply is small, the temperature fluctuation during the angle adjustment of the air deflector can be reduced, and the use feeling of a human body is improved.
Preferably, the cross section of the first induced air channel 8 is gradually decreased along the induced air direction, so that the flow speed of the air led out from the first induced air channel 8 can be accelerated, the air speed of the air outlet is high, the air led out from the first induced air channel 8 can be better mixed with the air blown out from the air outlet, and the mixing effect is improved.
Preferably, the first air inducing channel 8 is arc-shaped, so that the fluency of air flowing can be improved, the flowing direction of air from the inlet to the outlet of the first air inducing channel 8 can be naturally changed, the resistance of air redirection in the first air inducing channel 8 is reduced, and the air inducing effect is improved. The first air guide duct 8 may be a conical tube or a cylindrical tube.
The side wall of the first induced air channel 8 close to the air outlet is provided with a confluence notch 9, the outlet of the first induced air channel 8 is communicated with the air outlet through the confluence notch 9, so that a negative pressure area can be better formed around the air outlet, and the negative pressure area can be better acted on the outlet of the first induced air channel 8, so that the first induced air channel 8 can have a better drainage effect. The air led out from the first air inducing channel 8 can be more easily intersected with the air at the air outlet at the confluence notch 9, and mixed air is blown out.
Preferably, the first induced air channels 8 are symmetrically arranged on two sides of the air outlet, so that on one hand, the induced air quantity can be improved, on the other hand, the induced air pressure on two sides of the air outlet can be balanced, and the air outlet balance of the air outlet can be improved.
In this embodiment, the both sides of first air outlet 2 and the both sides of second air outlet 3 all are provided with first induced air passageway 8, can all carry out the drainage to two air outlets, can increase the induced air volume by the maximum efficiency, and the induced air effect is more obvious.
Preferably, the area of the first air induction port 15 of the first air induction channel 8 is adjustable, the area of the first air induction port 15 of the first air induction channel 8 can be adjusted as required or the first air induction channel 8 is closed, and the air induction amount can be adjusted as required, so that the use requirements of users can be better met.
Preferably, the area ratio of the outlet 16 of the first induced air channel 8 to the corresponding air outlet is 1:8 to 1:3, which can avoid that the cooling or heating effect of the air conditioner is affected by too large induced air amount of the first induced air channel 8, and can also avoid that the mixed regulation effect on the outlet air temperature cannot be achieved due to too small induced air amount.
In the present embodiment, an induced air pore plate is arranged at the second induced air channel 10, and a plurality of uniform flow holes 11 are arranged on the induced air pore plate. The flow equalizing holes 11 are multiple and are uniformly distributed on the surface of the induced draft pore plate, so that when indoor air enters the second induced draft channel 10, the air flow distribution is more uniform, and the induced draft effect is better. The air-inducing pore plate can be a single plate, only plays a role in inducing air to be divided, and can also be a multi-plate combination, so that the aim of adjusting the air quantity of the induced air is fulfilled.
In this embodiment, the air inducing pore plate is a double-layer superposed plate, the air inducing pore plate includes a second pore plate 13 fixedly arranged with the housing 1 and a second pore plate 13 capable of moving relative to the first pore plate 12, the second pore plate 13 is superposed on the first pore plate 12, and a driving mechanism for driving the second pore plate 13 to move relative to the first pore plate 12 is arranged between the first pore plate 12 and the second pore plate 13. Preferably, the specification of the equalizing holes 11 on the first orifice plate 12 and the second orifice plate 13 are the same, and the arrangement mode is the same. Relative motion can take place between first orifice plate 12 and the second orifice plate 13, can adjust the relative position of the hole 11 that flow equalizes of both through adjusting relative position between them, and then realize the regulation to the draught area of first orifice plate 12 and second orifice plate 13. The air inducing design can increase the air inducing amount by utilizing the action of the axial flow fan, and can control the air inducing amount by controlling the area of the flow equalizing hole 11, thereby providing the optimal air outlet temperature and improving the thermal comfort of the human body. In this embodiment, when the holes 11 that flow equalize of double-deck induced air orifice plate are complete coincide, its induced air volume is the biggest, and when the hole that flow equalize of first orifice plate 12 and second orifice plate 13 misplaced completely, the induced air volume of second induced air passageway 10 department is 0, and the regulation control of induced air volume is more simple and convenient, and is more accurate to the regulation of air conditioner air-out temperature.
In one embodiment, the first orifice plate 12 and the second orifice plate 13 are arcuate plates, and the second orifice plate 13 is rotatably disposed with respect to the first orifice plate 12 along an arcuate direction. The driving mechanism at this moment is a driving motor, an arc-shaped rack can be arranged on the second orifice plate 13, a driving gear is arranged on the driving motor, and when the driving motor rotates, the driving gear drives the arc-shaped rack to move to drive the second orifice plate 13 to rotate along the arc-shaped bending direction relative to the first orifice plate 12, so that the air induction quantity of the second air induction channel 10 is adjusted.
In another embodiment, the first orifice plate 12 and the second orifice plate 13 are arc-shaped plates having an arc-shaped cross section and a rectangular longitudinal section, and the second orifice plate 13 is slidably disposed in the longitudinal direction with respect to the first orifice plate 12. The driving mechanism at this moment is a driving motor, a spur rack can be arranged on the second orifice plate 13, a driving gear is arranged on the driving motor, and when the driving motor rotates, the driving gear drives the spur rack to move to drive the second orifice plate 13 to slide along the length direction of the rack relative to the first orifice plate 12, so that the air induction quantity of the second air induction channel 10 is adjusted.
The drive mechanism may be a telescopic cylinder or the like.
The second induced air port 17 of the second induced air channel 10 can be further provided with an induced air filter screen 14, the induced air filter screen 14 can filter air entering the second induced air channel 10, and meanwhile, the air can be subjected to primary flow equalization through meshes of the filter screen, so that the air flow effect is improved.
When the air conditioner is used for refrigerating, the second induced air channel 10 can also mix indoor air with low-temperature air which is subjected to heat exchange I through the heat exchanger in front of the axial flow fan to increase the temperature of the air, so that condensation of the axial flow fan is reduced, and the problem that the condensation of the axial flow fan in front of the heat exchanger blows water is avoided.
In this embodiment, the indoor heat exchanger includes a first heat exchanger 6 and a second heat exchanger 7 arranged at intervals, the first heat exchanger 6 is arranged between the air inlet and the first air outlet 2, and the second heat exchanger 7 is arranged between the air inlet and the second air outlet 3. First heat exchanger 6 and second heat exchanger 7 separately set up, and both independent control can blow off the air of different temperatures from two air outlets, can carry out different regulation to indoor upper and lower temperature as required, have improved indoor temperature control's flexibility for indoor temperature control is more diversified.
First air inducing channels 8 can be arranged between the first air outlet 2 and the first axial fan 4 and between the second air outlet 3 and the second axial fan 5, and second air inducing channels 10 can be arranged between the first axial fan 4 and the first heat exchanger 6 and between the second axial fan 5 and the second heat exchanger 7, and can be specifically arranged as required.
In the use process of the air conditioner, when the air conditioner is in a refrigerating state, the air flow of the air is influenced by the mechanical wind at the air outlet in the circulating process of flowing from bottom to top, so that the air flows at two sides of the air outlet of the air conditioner flow to two sides, the pressure at the inlet of the first induced air channel 8 is higher, and the induced air function is more favorably realized.
Referring to fig. 1 to 7 in combination, according to an embodiment of the present invention, an induced air control method for an air conditioner includes: detecting the initial return air speed v0Temperature t of coil0Air outlet temperature T0And fan speed N0(ii) a Opening the second induced draft channel 10 and making the initial return air velocity v0And coil temperature t0Keeping the same; detecting the current air-out temperature TnA relation with a set temperature T; the relative positions of the first orifice plate 12 and the second orifice plate 13 are adjusted according to the detection result.
According to the induced air control method of the air conditioner, the air outlet temperature and the air outlet pressure are adjusted by adjusting the induced air quantity of the second induced air channel 10, the flexibility of air outlet temperature control is improved, the air return speed can be ensured, the system pressure before and after the induced air of the heat exchanger is unchanged, the overall performance of the air conditioner is not affected, the air conditioner can have a higher energy efficiency ratio, and a user can obtain better use experience.
Preferably, the initial return air speed v is detected0Temperature T of coil0And air outlet temperature T0And fan speed N0Before the step (2) further comprising: and controlling the air conditioner to operate for t1 time to a stable operation stage after the air conditioner is started.
The detection of the initial return air speed v is started after the air conditioner is operated to a stable stage0Temperature T of coil0And air outlet temperature T0And fan speed N0The purpose of which is to ensure the initial return air speed v obtained0And coil temperature T0Are the operating parameters of the air conditioner in the case that the user selects the most comfortable indoor temperature, and thenWhen the induced air quantity is continuously controlled, the initial return air speed v can be kept0And coil temperature T0The air induction quantity and the fan rotating speed N are unchanged under the condition that the indoor temperature can better meet the requirements of users0And the like, so that the double-axial-flow fan can be always kept in a high energy efficiency ratio running state, and meanwhile, the air outlet temperature can also meet the user experience all the time.
T1 is 20min, for example, but may be other time periods that can ensure stable operation of the air conditioner.
The second induced draft channel 10 is opened and the initial return air speed v is enabled0And coil temperature T0The step of maintaining the same includes: controlling the second orifice plate 13 to move relative to the first orifice plate 12, so that the flow equalizing holes 11 in the first orifice plate 12 and the flow equalizing holes 11 in the second orifice plate 13 at least partially overlap; the rotating speed of the axial flow fan corresponding to the second induced draft channel 10 is adjusted to control the return air speed to keep the initial return air speed v0
After the second induced air channel 10 is opened, indoor air is introduced from the air inlet end of the axial flow fan, so that the pressure of the axial flow fan and the pressure of the front system and the rear system of the heat exchanger are influenced, the air outlet temperature of the air conditioner is influenced, the induced air area of the second induced air channel 10 needs to be adjusted, the rotating speed of the axial flow fan corresponding to the second induced air channel 10 is correspondingly adjusted, and the return air speed of the air conditioner can be always kept at the initial return air speed v0. By adjusting the relative position of the second orifice plate 13 and the first orifice plate 12, the contact ratio of the uniform flow holes 11 on the first orifice plate 12 and the uniform flow holes 11 on the second orifice plate 13 can be adjusted, so that the induced air quantity of the second induced air channel 10 can be adjusted, and the return air speed reaches the initial return air speed v0Under the condition of (1), the outlet air temperature TnAnd can meet the requirements of users at the same time.
After the second induced draft channel 10 is opened, the step of adjusting the relative position of the first orifice plate 12 and the second orifice plate 13 specifically includes:
if the current outlet air temperature TnThe relation with the set temperature T satisfies Tn<T-a, controlling the phase of the second orifice plate 13The overlapping area of the flow equalizing holes 11 on the first pore plate 12 and the flow equalizing holes 11 on the second pore plate 13 is enlarged when the first pore plate 12 moves, the rotating speed of the axial flow fan corresponding to the second induced air channel 10 is increased, and the real-time return air speed v is controllednAdjusted to the initial return air speed v0. When T isn<And T-a, the current air outlet temperature is too low, and the current air outlet temperature needs to be increased, so that the overlapping area of the uniform flow holes 11 on the first pore plate 12 and the uniform flow holes 11 on the second pore plate 13 can be increased, the air guiding quantity is increased, the air temperature after mixing is increased, and the purpose of increasing the air outlet temperature is further achieved. At this time, due to the increase of the induced air volume, the air volume after passing through the heat exchanger is inevitably reduced, and the air outlet speed is reduced, so that the rotating speed of the axial flow fan corresponding to the second induced air channel 10 needs to be increased at the same time, the air outlet speed of the air conditioner is ensured, and the real-time return air speed can be ensured to be kept at the initial return air speed v0
If the current outlet air temperature TnThe relation with the set temperature T satisfies TnThe relative position of the first orifice plate 12 and the second orifice plate 13 is maintained at the current state. The air outlet temperature at this moment can satisfy the user's demand, consequently need not to adjust induced air volume and axial fan's slew velocity, and the air conditioner can the steady operation at high energy efficiency state.
If the current outlet air temperature TnThe relation with the set temperature T satisfies Tn>T + a, controlling the second pore plate 13 to move relative to the first pore plate 12, reducing the overlapping area of the uniform flow holes 11 on the first pore plate 12 and the uniform flow holes 11 on the second pore plate 13, simultaneously reducing the rotating speed of the axial flow fan corresponding to the second induced draft channel 10, and controlling the real-time return air speed vnAdjusted to the initial return air speed v0. When T isn>During T + a, it shows that current air-out temperature is too high, consequently need reduce the area of overlapping of the equal discharge orifice 11 on the first orifice plate 12 and the equal discharge orifice 11 on the second orifice plate 13, reduce the induced air volume to reduce the air temperature after mixing, and then reach the purpose that reduces air-out temperature, make air-out temperature can adjust to the user and set for the temperature within range. At the moment, the air quantity is reduced, so that the air passing through the heat exchanger is inevitably dischargedThe air quantity is increased, the air outlet speed is increased, so that the rotating speed of the axial flow fan corresponding to the second induced air channel 10 needs to be reduced at the same time, the air outlet speed of the air conditioner is ensured, and the real-time return air speed can be kept at the initial return air speed v0
The above-mentioned a is, for example, 1 ℃, and may also be other numerical values, the smaller the numerical value is, the more the outlet air temperature after final adjustment can meet the requirements of the user, the larger the numerical value is, the less the adjustment of the air conditioner is, and the more the energy consumption of the air conditioner can be saved, so that the numerical value can select a balance value of the two, that is, on the basis of meeting the use requirements of the user, the energy consumption of the air conditioner can also be saved.
In the working process of the air conditioner, the current outlet air temperature T can be repeatedly detected once every T2 timenTemperature T of coilnAnd the return air speed vnAnd fan speed NnThe step (2) to ensure that the air outlet temperature can be always controlled within a preset range, and ensure the use requirements of users. T2 is 5min, for example.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (8)

1. An induced air control method of an air conditioner comprises a shell, wherein an air inlet and an air outlet are formed in the shell, the air outlet comprises a first air outlet located above and a second air outlet located below, a first axial flow fan is arranged in the shell corresponding to the first air outlet, a second axial flow fan is arranged in the shell corresponding to the second air outlet, an indoor heat exchanger is arranged at the air inlet, and a first induced air channel is communicated between the shell side wall between the air outlet and the axial flow fan and at least one air outlet; a second induced draft channel is arranged on the side wall of the shell between the air inlet and the axial flow fan, a first pore plate and a second pore plate are superposed in the second induced draft channel, and the first pore plate and the second pore plate move relatively to adjust the induced draft area of the second induced draft channel, and the induced draft control method is characterized by comprising the following steps of:
detecting the initial return air speed v0 and the coil temperature T0And air outlet temperature T0And fan speed N0
Opening the second induced draft channel and making the initial return air speed v0 and the coil temperature T0Keeping the same;
detecting the current air-out temperature TnA relation with a set temperature T;
and adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result.
2. The induced air control method according to claim 1, wherein the second induced air channel is opened and the initial return air speed v is set0And coil temperature T0The step of maintaining the same includes:
controlling the second orifice plate to move relative to the first orifice plate so that the flow equalizing holes in the first orifice plate are at least partially overlapped with the flow equalizing holes in the second orifice plate;
and adjusting the rotating speed of the axial flow fan corresponding to the second induced draft channel, and controlling the return air speed to keep the initial return air speed v 0.
3. The induced air control method according to claim 1, wherein the step of adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result comprises:
if the current outlet air temperature TnThe relation with the set temperature T satisfies Tn<T-a, controlling the second pore plate to move relative to the first pore plate, increasing the overlapping area of the uniform flow holes on the first pore plate and the uniform flow holes on the second pore plate, simultaneously increasing the rotating speed of the axial flow fan corresponding to the second induced air channel, and controlling the real-time return air speed vnAdjusted to the initial return air velocity v 0.
4. The induced air control method according to claim 1, wherein the step of adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result comprises:
if the current outlet air temperature TnThe relation with the set temperature T satisfies TnAnd keeping the relative position of the first orifice plate and the second orifice plate in the current state.
5. The induced air control method according to claim 1, wherein the step of adjusting the relative position of the first orifice plate and the second orifice plate according to the detection result comprises:
if the current outlet air temperature TnThe relation with the set temperature T satisfies Tn>T + a, controlling the second pore plate to move relative to the first pore plate, reducing the overlapping area of the uniform flow holes on the first pore plate and the uniform flow holes on the second pore plate, simultaneously reducing the rotating speed of the axial flow fan corresponding to the second induced air channel, and controlling the real-time return air speed vnAdjusted to the initial return air velocity v 0.
6. The induced draft control method according to claim 1, wherein the detected initial return air speed v0 and coil temperature T0And air outlet temperature T0And fan speed N0Before the step (2) further comprising:
and controlling the air conditioner to operate for t1 time to a stable operation stage after the air conditioner is started.
7. The induced draft control method according to claim 1, wherein the current outlet air temperature T detected is repeatedly detected every T2 timenTemperature T of coilnAnd the return air speed vnAnd fan speed NnThe step (2).
8. The induced draft control method according to claim 3, wherein a is 1 ℃.
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CN110326600B (en) * 2019-08-01 2023-10-20 山东农业大学 Wind speed regulating and controlling device and method
CN110715424B (en) * 2019-10-21 2022-04-26 广东美的制冷设备有限公司 Air conditioner and control method, device and equipment thereof
CN110762734A (en) * 2019-10-31 2020-02-07 青岛海尔空调电子有限公司 Control method of air conditioner indoor unit
CN113587409A (en) * 2021-06-30 2021-11-02 重庆海尔空调器有限公司 Control method and control system for double-air-channel air conditioner and air conditioner

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