JP6993028B2 - Air conditioner indoor unit and its control method - Google Patents

Description

The present application relates to the technical field of an air conditioner, and particularly to an air conditioner indoor unit and a control method for the air conditioner indoor unit.

As the standard of living has improved, air conditioners are already becoming one of the indispensable household appliances for many households. Many of the current air conditioners have cooling and heating functions at the same time, and keep the temperature of the indoor environment within a comfortable range. When the air conditioner is in the cooling or heating mode for a long time, the cold wind or the warm wind is blown directly to the human body for a long time, which causes discomfort to the user. To overcome the above deficiencies, air conditioners with a windless function have appeared on the market, but many conventional air conditioners do not select a windless state that corresponds to the actual feeling of the user's body. Since the air conditioner is controlled to enter the corresponding windless state by detecting the temperature or humidity in the room, the actual windless effect is far from the expected effect, and the conventional air conditioner switches to the windless state. It is difficult to achieve a stable transition, and the distinction between the wind feelings felt by the user is too large, which makes the user's experience worse.

A main object of the present application is to provide an air conditioner indoor unit for realizing a stable transition when switching the air conditioner to a windless state and effectively improving the comfort of the user's experience.

In order to achieve the above object, the air conditioner indoor unit proposed in the present application includes a case and a fan, and the air outlet of the air passage of the case has a front wall surface and a rear wall surface installed so as to face each other. The air conditioner indoor unit further includes a first baffle plate rotatably installed in the case with a first pivot shaft installed close to the rear wall surface, the first pivot shaft, and the front. A second baffle plate rotatably installed in the case with a second pivot shaft located between the wall surface and the edge near the second pivot shaft is the first baffle plate. The second baffle plate that fits in contact with the edge far away from the first pivot axis and the third pivot shaft installed close to the front wall surface are rotatably installed in the case. By the third wind guide plate provided with some wind diffusion holes, the temperature sensor installed in the case and installed to detect the heat radiation amount of the target heat source in the room, and the temperature sensor. Based on the detected heat dissipation amount, a controller that jointly controls the fan, the first baffle plate, the second baffle plate, and the third baffle plate to adjust the flow rate of the blown air and the method of the blown air. include.

Preferably, the case includes a panel, a mounting box for mounting the temperature sensor is installed inside the panel, and the panel is provided with a detection window corresponding to the temperature sensor.

Preferably, the mounting box includes a box body and a housing, the box body is provided with a containment chamber for accommodating the temperature sensor, and the housing closes the accommodating chamber and is exposed to the detection window. The housing is provided with a detection hole for exposing the detection head of the temperature sensor.

Preferably, the second baffle plate includes a wind guide and a tail wing installed on the side of the wind guide near the second pivot axis, and between the tail and the wind guide. The recess is formed in a stepped manner, and the tip of the first baffle plate can rotate in the recess.

Preferably, the accommodating groove is installed in the front wall surface so as to be recessed, and the third baffle plate is rotatably connected to the anterior wall surface and can be accommodated in the accommodating groove.

The present application further proposes a control method for an air conditioner indoor unit. The air conditioner indoor unit is an air conditioner indoor unit according to the above embodiment of the present application, the air conditioner indoor unit includes a windless feeling mode, the windless feeling mode includes a plurality of windless feeling stages from cold to warm, and the control method is ,
S1: The step of acquiring the heat dissipation amount of the target heat source in the room,
S2: A step of converting the heat radiation amount acquired in step S1 into a perceived reference temperature of the target heat source and comparing the perceived reference temperature with the current set temperature of the air conditioner indoor unit.
Branch 1, when the experience reference temperature is larger than the current set temperature and the absolute value of the temperature difference between the two is larger than the first default value, the air conditioner room is adjusted to one or more windless stages in the warm direction. Control the machine, correct the current set temperature and enter step S1, the first default value is a step that is a natural number of zero or more, and
Branch 2, when the reference temperature is smaller than the current set temperature and the absolute value of the temperature difference between the two is larger than the first default value, the air conditioner room is adjusted to one or more windless stages in the cold direction. It includes a step of controlling the machine, correcting the current set temperature, and entering step S1.

Preferably, the plurality of windless stages from cold to warm include a cold-class windless stage and a warm-class windless stage, and in the cold-class windless stage, the airflow is two airflows on both the upper and lower sides of the second baffle plate. The first baffle plate and the second baffle plate are rotated so as to flow out through the passage, and two airflow passages are formed on both the upper and lower sides of the second baffle plate. The first baffle plate is rotated so that the tip of the first baffle plate is fitted so as to be sealed with the rear end of the second baffle plate, and the third baffle plate is fitted to the air flow flow surface. It rotates to When it is large, the air conditioner indoor unit is controlled so as to enter the warm-class windless stage, and when the perceived reference temperature is smaller than the current set temperature and the absolute value of the temperature difference between the two is larger than the first default value, it is cold. The air conditioner indoor unit is controlled so as to enter the class windless stage.

Preferably, both the cold and warm windless stages include at least three windless subsections that are set to gradually change from cold to warm, with the windless subsections switching from cold to warm. As a result, the rotation speed of the fan also switches from large to small correspondingly.

Preferably, the windless stage from cold to warm further includes a comfortable-class windless stage, and in the comfortable-class windless stage, the first baffle plate is rotated and the tip of the first baffle plate is brought into the first position. It is fitted so as to be sealed with the rear end of the second baffle plate, the third baffle plate is rotated so as to be attached to the front wall surface, and the airflow flows out from the airflow passage above the second baffle plate. When the absolute value of the temperature difference between the experience reference temperature and the current set temperature is equal to or less than the first default value, the air conditioner indoor unit is controlled so as to enter the comfortable class windless feeling stage.

Preferably, the comfort class windless stage comprises at least three windless subsections that are set to gradually change from cold to warm, and the fan speed as the windless subsection switches from cold to warm. Also switches from large to small accordingly.

In the technical means of the present application, a first baffle plate, a second baffle plate and a third baffle plate are installed in the case of the air conditioner indoor unit, and a temperature sensor and a controller are further installed in the air conditioner indoor unit. The temperature sensor detects the amount of heat released from the target heat source in the room, and the controller jointly uses the fan, the first baffle plate, the second baffle plate, and the third baffle plate based on the amount of heat released by the temperature sensor. By controlling and adjusting the flow rate of the air blow and the method of the air blow, a stable transition when the air conditioner switches to the windless state is realized.

Specifically, by the cooperation of the first baffle plate, the second baffle plate, and the third baffle plate, it is possible to divide the windless state into a plurality of windless stages that are distributed in an inclined manner from cold to warm. be. In this way, when switching from the windy state to the windless state, a stable transition from the cold windless state to the warm windless state can be realized, and the user's experience is effective without making the user feel rapid wind attenuation. To improve. In addition, the temperature sensor can monitor changes in the user's sensible temperature in real time. If the user feels relatively hot, the windless stage can be switched to the cold windless stage to make the user feel cool, and if the user feels relatively cold, the windless stage can be changed to the warm windless stage. You can switch to to keep the user cool.

In summary, the air conditioner indoor unit of the present application realizes a stable transition when switching from a windy state to a windless state, and monitors the actual change in the user's experience in real time to give the actual feeling of the user. Based on this, the operating state of the air conditioner indoor unit can be controlled to give the user an optimum experience and effectively improve the comfort of the user's experience.

In order to more clearly explain the embodiment of the present application and the technical means of the prior art, the accompanying drawings required for the description of the embodiment or the prior art will be briefly introduced below. It is clear that the attached drawings in the following description are only a part of the embodiments of the present application, and on the premise that those skilled in the art do not perform creative labor, other attachments are made by the structure shown in these attached drawings. Drawings can be obtained.

It is a structural schematic diagram of one Example of the air conditioner indoor unit of this application. It is a schematic diagram of the disassembled structure of the panel in FIG. 1. It is a schematic diagram of the detection area of the air conditioner indoor unit in FIG. It is a schematic diagram of the internal structure of the air conditioner indoor unit in FIG. It is a schematic diagram of the ventilation structure in the case where the air conditioner indoor unit in FIG. 4 is in the cold-class windless stage. It is a schematic diagram of the ventilation structure in the case where the air conditioner indoor unit in FIG. 4 is in the comfortable class windless stage. It is a schematic diagram of the ventilation structure in the case where the air conditioner indoor unit in FIG. 4 is in the warm-class windless stage. It is a control flowchart of one Embodiment of the air conditioner indoor unit of this application. It is a control flowchart of another embodiment of the air conditioner indoor unit of this application.

The realization, functional features and advantages of the present application will be further described with reference to the accompanying drawings in combination with the examples.

In the following, the technical means in the examples of the present application will be clearly and completely described in combination with the accompanying drawings in the examples of the present application. It is clear that the examples described are not all of the examples of the present application, but only some of the examples of the present application. Based on the examples in the present application, all other embodiments obtained on the premise that those skilled in the art do not perform creative labor fall within the scope of the present application.

If directional instructions (eg, up, down, left, right, front, back, etc.) are involved in the embodiments of the present application, the directional instructions are relative to each part in a particular posture (shown in the accompanying drawings). It should be explained that it is used only to explain the positional relationship, the movement situation, etc., and if the specific posture changes, the direction instruction also changes accordingly.

Further, in the case of relating to the explanation of "first", "second", etc. in the embodiment of the present application, the explanation of "first", "second", etc. is only used for explanation, and the explanation thereof is used. It should not be understood to suggest or imply relative importance, or to imply the number of technical features presented. Thereby, the feature limited to "first" and "second" may include at least one feature, either explicitly or implicitly. Also, the technical means of each embodiment can be combined with each other. However, what can be realized by those skilled in the art is the basis. If the combination of technical means is inconsistent or unrealizable, it should be understood that such a combination of technical means does not exist and is not within the scope of protection claimed by the present application.

This application proposes an air conditioner indoor unit.

In the embodiment of the present application, as shown in FIGS. 1 to 7, the air conditioner indoor unit includes a case 100 and a fan (not shown), and is installed so as to face the air outlet of the case air passage 110. There is a wall surface 111 and a rear wall surface 112. The air conditioner indoor unit further includes a first baffle plate 120, a second baffle plate 130, a third baffle plate 140, a temperature sensor 160, and a controller (not shown). The first baffle plate 120 is rotatably installed in the case 100 by the first pivot shaft 121 installed close to the rear wall surface 112. The second baffle plate 130 is rotatably installed in the case 100 by the second pivot shaft 131 located between the first pivot shaft 121 and the front wall surface 111, and the second pivot of the second baffle plate 130. The edge portion close to the drive shaft 131 is fitted so as to be in contact with the edge portion of the first baffle plate 120 far away from the first pivot shaft 121. The third wind guide plate 140 is rotatably installed in the case 100 by the third pivot shaft 141 installed close to the front wall surface 111, and some wind diffusion holes are formed on the third wind guide plate 140. 142 is provided. The temperature sensor 160 is installed in the case 100 and is installed to detect the amount of heat radiated from the target heat source in the room. The controller jointly controls the fan, the first baffle plate 120, the second baffle plate 130, and the third baffle plate 140 based on the amount of heat radiated detected by the temperature sensor 160, and the flow rate of the blast and the method of the blast. To adjust.

In this embodiment, the case 100 is used to form the overall appearance of the air conditioner indoor unit, the case 100 includes a base, a frame and a panel 150, an intake port is provided on the case 100, and the case 100 is provided with an intake port. An air passage 110 is formed inside, a heat exchanger assembly, a fan, and the like are further installed in the case 100, and external air enters the case 100 from the intake port and undergoes heat exchange by the heat exchanger. , It is sent out from the air outlet of the air passage 110 by the fan. Specifically, the first baffle plate 120 is rotatably mounted on the case 100 through the first pivot shaft 121. The first pivot shaft 121 may be a long shaft extending along the length direction of the first baffle plate 120, or a short shaft provided on both sides opposite to each other in the length direction of the first baffle plate 120. Alternatively, another type of rotating shaft may be used. It is necessary to explain that the first baffle plate 120 should be rotatably connected on the case 100. Similarly, for the specific structure of the second pivot axis 131 and the third pivot axis 141, the first pivot axis 121 may be referred to, and the specific structure is not specifically limited here. The shape of the wind diffusion hole 142 may be circular, long, and the cross-sectional shape of the vacuuming device 142 may be of a plurality of types such as a circle, a strip shape, a rhombus, or a square shape.

The temperature sensor 160 is installed to detect the amount of heat radiated from the target heat source in the room. The target heat source referred to here refers to a moving heat source in a room, and it is possible to determine the target heat source based on the actual service target of the air conditioner. For example, in a general situation, the target service target of the air conditioner is a person, and the target heat source at this time is the human body. Of course, in some special circumstances, for example, in the case of an air conditioner indoor unit installed in a zoo's animal activity room, the target heat source is the animal. It should be explained that the temperature sensor 160 is mainly installed to detect the amount of heat radiated from the indoor target and to determine the perceived condition of the target heat source based on the detection result. Specifically, the temperature sensor 160 may be a thermopile infrared temperature measurement sensor, and non-contact temperature measurement can be realized by the principle of temperature measurement by infrared radiation. Even if the controller is installed on the main control electric circuit board of the air conditioner indoor unit to control the fan of the air conditioner indoor unit, the first baffle plate 120, the second baffle plate 130 and the third baffle plate 140. good.

Specifically, by cooperating with each other between the first baffle plate 120, the second baffle plate 130, and the third baffle plate 140, it is possible to form a plurality of windless stages from cold to warm. Is. It should be explained that cold and warm here are divided by the relative sensations caused to the user at each stage of windlessness, not true cold or warm winds. There is.

For example, in the power-off state, as shown in FIG. 4, the third baffle plate 140 is placed in the air passage 110 of the case 100 and is far away from the first pivot shaft 121 of the first baffle plate 120. The edge portion is in contact with the edge portion of the second baffle plate 130 near the second pivot shaft 131. By closing the air outlet by the cooperation of the first air guide plate 120 and the second air guide plate 130, it is possible to prevent dust from entering through the air outlet on the one hand, and on the other hand, the air conditioner indoor unit as a whole. You can add aesthetics.

As shown in FIG. 5, in the cold-class windless stage, the first baffle plate 120 and the second baffle plate 120 so that the airflow flows out horizontally through the two airflow passages on both the upper and lower sides of the second baffle plate 130. The 130 is substantially parallel to the horizontal direction, and two airflow passages are formed on both the upper and lower sides of the second baffle plate 130. At this stage it is possible to avoid the airflow being blown directly onto the human body and to ensure that the airflow has a relatively large output capacity, at each windless stage to make the user feel relatively cold. Equivalent to.

In the comfort class windless stage, as shown in FIG. 6, the tip of the first baffle plate 120 is fitted so as to be hermetically sealed with the rear end of the second baffle plate 130, and the third baffle plate 140 is in front. It rotates so as to stick to the wall surface 111 so that the airflow flows out from the airflow passage above the second baffle plate 130. At this stage, compared to the cold-class windless stage, the wind power output is further reduced to make the user feel relatively comfortable.

In the warm-class windless stage, as shown in FIG. 7, the tip of the first baffle plate 120 is fitted so as to be hermetically sealed with the rear end of the second baffle plate 130, and the third baffle plate 140 blows air. The airflow is rotated to the flow surface of the third guide plate 140 so as to be blown out from the wind diffusion hole 142 of the third baffle plate 140. At this stage, the airflow has to be diffused by the wind diffuser 142 and then blown out, that is, the output of the wind power is the lowest. At this time, the user feels relatively warm at this stage compared to other stages.

In addition, by controlling the rotation speed of the fan through the controller in each windless stage, each windless stage is subdivided into multiple windless subsections that gradually change from cold to warm, and the windless stage control can be performed. Make it finer and make the transition more stable.

In the technical means of the present application, the first baffle plate 120, the second baffle plate 130 and the third baffle plate 140 are installed in the case 100 of the air conditioner indoor unit, and the temperature sensor 160 and the temperature sensor 160 are further provided in the air conditioner indoor unit. Install the controller. The temperature sensor 160 detects the amount of heat radiated from the target heat source in the room, and the controller detects the amount of heat radiated by the temperature sensor 160. By jointly controlling the wind plate 140 and adjusting the flow rate of the air blow and the method of the air blow, a stable transition when switching to the windless state of the air conditioner is realized. Specifically, by the cooperation of the first baffle plate 120, the second baffle plate 130, and the third baffle plate 140, the windless state is divided into a plurality of windless stages that are distributed in an inclined manner from cold to warm. Is possible. In this way, when switching from the windy state to the windless state, a stable transition from the cold windless state to the warm windless state can be realized, and the user's experience is effective without making the user feel rapid wind attenuation. To improve. In addition, the temperature sensor 160 can monitor changes in the user's sensible temperature in real time. If the user feels relatively hot, the windless stage can be switched to the cold windless stage to make the user feel cool, and if the user feels relatively cold, the windless stage can be changed to the warm windless stage. You can switch to to keep the user cool.

In summary, the air conditioner indoor unit of the present application realizes a stable transition when switching from a windy state to a windless state, and monitors the actual change in the user's experience in real time to give the actual feeling of the user. Based on this, the operating state of the air conditioner indoor unit can be controlled to give the user an optimum experience and effectively improve the comfort of the user's experience.

Further, referring to FIG. 2, the case 100 includes the panel 150, a mounting box for mounting the temperature sensor 160 is installed inside the panel 150, and the panel 150 has a detection window 151 corresponding to the temperature sensor 160. Is provided. In this embodiment, by installing a mounting box for convenient mounting of the temperature sensor 160, the temperature sensor 160 can be fixed in the mounting box by a method such as screwing or fixing with a buckle. Specifically, the mounting box includes a box body 171 and a housing 172, the box body 171 is provided with a containment chamber for accommodating the temperature sensor 160, and the housing 172 closes the accommodating chamber and is exposed to the detection window 151. The housing 172 is provided with a detection hole 173 for exposing the detection head of the temperature sensor 160. The housing 172 is preferably connected to the box body 172 by a buckle, which facilitates inspection of the temperature sensor 160.

Further, referring to FIG. 6, the second baffle plate 130 includes the baffle 132 and the tail wing 133 installed on the side of the baffle 132 near the second pivot shaft 131, and the tail wing 133 and the baffle guide. A recess is formed between the portion 132 and the portion 132 in a stepped manner, and the tip of the first baffle plate 120 can rotate in the recess.

Specifically, in this embodiment, the second baffle plate 130 is designed as a structure similar to an airplane frame. In this way, in the comfortable-class windless stage, the tip of the first baffle plate 120 rotates in the recess and comes into contact with the tail blade 133 of the second baffle plate 130 to form the first baffle plate 120. It is possible to realize a hermetically sealed fit with the second baffle plate 130 and prevent the airflow from leaking from the gap between the two and affecting the windless effect. Preferably, W ∈ {100 mm, where W is the width between the side of the wind guide 132 that is far away from the second pivot 131 and the side of the wind guide 132 that is close to the second pivot 131. , 300 mm}. By designing the second baffle plate 130 as an extension type, when the airflow passes through the second baffle plate 130 in the cooling mode, it is blown out farther by the Coanda effect of the airflow. In the heating mode, the Coanda effect guides more airflow to the ground, effectively improving the cooling and heating effects. The width of the air guide portion 132 can be 100 mm, 200 mm, 300 mm, or the like. The wider the width of the air guide portion 132, the better the effect of extending the air passage 110, but in actual application, it is necessary to set it after considering the production cost and the specific dimensions of the air conditioner indoor unit. ..

Further, the accommodating groove 113 is installed on the front wall surface 111 so as to be recessed, and the third baffle plate 140 is rotatably connected to the front wall surface 111 and can be accommodated in the accommodating groove 113. In this embodiment, by installing the accommodating groove 113, the third baffle plate 140 is accommodated in the accommodating groove 113 in the cooling mode to avoid causing resistance to the air flow and affecting the air flow. Is possible.

Further, a heat insulating layer 180 is installed on the intake side of the first baffle plate 120 and the second baffle plate 130, whereby the formation of dew condensation can be effectively avoided. The heat insulating layer 180 may be an inorganic fiber material such as mineral wool, rock wool, glass wool or the like, or an organic heat insulating material such as polyethylene (PE) foam, polystyrene (PS) foam, polyurethane (PU) or the like.

Hereinafter, the control method of the air conditioner indoor unit according to the embodiment of the present application will be described in detail with reference to FIGS. 5 to 9. The air conditioner indoor unit is an air conditioner indoor unit according to the above embodiment of the present application, the air conditioner indoor unit includes a windless mode, a cooling mode and a heating mode, and the windless mode includes a plurality of windless stages from cold to warm. Since the specific structure of the air conditioner indoor unit is referred to in the above embodiment, it has at least all the technical effects brought about by the technical means of the above embodiment, and will not be described again here.

Specifically, the air conditioner indoor unit has a cooling mode, a heating mode, and a windless mode. A plurality of buttons are installed on the panel 150 of the air conditioner indoor unit or the remote controller of the air conditioner, and different ventilation modes are selected with different buttons. The windless mode includes a plurality of windless stages from cold to warm, and the control method in the windless mode of the air conditioner indoor unit will be described in detail below. As shown in FIGS. 8 and 9, the method for controlling the air conditioner indoor unit according to the embodiment of the present application includes the following steps.

In step S1, the heat dissipation amount of the target heat source in the room is acquired by using the room temperature sensor 160. For example, taking the human body temperature sensor 160 as an example, the human body temperature sensor 160 detects the amount of heat radiated from the surface of the human body by using infrared radiation, and acquires the temperature information of the human body.

In step S2, the human body temperature sensor 160 converts the acquired heat dissipation amount into the perceived reference temperature of the target heat source by its own conversion module, compares the perceived reference temperature with the current set temperature of the air conditioner indoor unit, and uses the controller. The air conditioner indoor unit can be controlled to enter the corresponding windless stage based on the comparison value.

Specifically, when the perceived reference temperature is larger than the current set temperature and the absolute value of the temperature difference between the two is larger than the first default value, the air conditioner room is adjusted to one or more windless stages in the warm direction. The machine is controlled to correct the current set temperature and enter step S1. The first default value is a natural number greater than or equal to zero. It should be pointed out that each windless stage corresponds to a different current default temperature. For ease of explanation, the perceived reference temperature is defined as Tc, the current default temperature of the air conditioner indoor unit at each stage is defined as Ts (n), and the first default value is defined as M.

For example, when the air conditioner indoor unit is in the first stage of windlessness, if the temperature sensor 160 detects that Tc is larger than Ts (1) and the difference between Tc and Ts (1) is larger than M, It is determined that the current set temperature of the air conditioner is relatively low compared to the human body, and the temperature difference between the two is relatively large. At this time, the controller reduces the wind power output by manipulating the swing angles of the first baffle plate 120, the second baffle plate 130, and the third baffle plate 140, and puts the air conditioner in a warm windless stage for use. Makes the person feel that the temperature has risen relatively. Correspondingly, the current operating temperature of the air conditioner indoor unit is also corrected to TS (n). Then, by repeating the above steps, the sensation of the human body is always in the optimum state.

When the air conditioner indoor unit is in the nth stage of windlessness, if the temperature sensor 160 detects that Tc is smaller than Ts (n) and the value of the difference between Ts (n) and Tc is larger than M, the air conditioner It is determined that the set temperature is relatively high compared to the human body and the temperature difference between the two is relatively large. At this time, the controller increases the output of wind power by manipulating the swing angles of the first baffle plate 120, the second baffle plate 130, and the third baffle plate 140, and puts the air conditioner in a cold windless stage for use. Makes the person feel that the temperature has decreased relatively. Correspondingly, the current operating temperature of the air conditioner indoor unit is also corrected to TS (n-1). Then, by repeating the above steps, the sensation of the human body is always in the optimum state.

Further, the plurality of windless stages from cold to warm include a cold-class windless stage and a warm-class windless stage. In the cold-class windless stage, as shown in FIG. 5, the first baffle plate 120 and the second baffle plate 130 are provided so that the airflow flows out through the two airflow passages on both the upper and lower sides of the second baffle plate 130. By rotating, two airflow passages are formed on both the upper and lower sides of the second baffle plate 130. At this time, the wind power output of the air conditioner indoor unit is maximized, which makes the user feel relatively cold. In the warm-class windless stage, as shown in FIG. 7, the first enclosed 120 is rotated so that the tip of the first baffle plate 120 is fitted to the rear end of the second baffle plate 130 so as to be hermetically sealed. Then, the third baffle plate 140 is rotated to the flow surface of the blower so that the airflow is blown out from the wind diffusion hole 142 of the third baffle plate 140. At this time, the wind power output of the air conditioner indoor unit is maximized, which makes the user feel relatively cold.

If the experience reference temperature is higher than the current set temperature and the absolute value of the temperature difference between the two is larger than the first default value, the air conditioner indoor unit is controlled to enter the warm-class windless stage, and the experience reference temperature is the current value. When the temperature is smaller than the set temperature and the absolute value of the temperature difference between the two is larger than the first predetermined value, the air conditioner indoor unit is controlled so as to enter the cold-class windless stage.

In addition, the cold and warm windless stages both include at least three windless subsections that are set to gradually change from cold to warm, with the windless subsections switching from cold to warm. Along with this, the rotation speed of the fan also switches from large to small.

In this embodiment, it is possible to divide each windless feeling stage into a plurality of windless feeling sub-sections based on the actual operating temperature and wind speed of the air conditioner indoor unit. Each windless sub-section gradually changes from cold to warm, and the fan speed in each windless sub-section also switches from large to small accordingly. Specifically, for example, as shown in FIG. 9, the cold-class windless feeling stage includes three windless feeling sub-sections, a section M1, a section M2, and a section M3, respectively. From the section M1 to the section M3, the wind power output to the air conditioner indoor unit gradually decreases, that is, the cold sensitivity given to the user gradually decreases. The warm-grade windless stage includes three windless subsections, section M7, section M8 and section M9, respectively. From the section M7 to the section M9, the wind power output to the air conditioner indoor unit gradually decreases, that is, the warming sensitivity given to the user gradually increases. In this way, by further subdividing each windless feeling stage into a plurality of windless feeling sub-sections, the change process from cold to warm of the windless feeling stage is further stabilized. Similarly, the temperature sensor 160 detects the amount of heat dissipated by the user and converts it to the corresponding sensation reference temperature, comparing the sensation reference temperature with the current set temperature in the corresponding windless subsection of the air conditioner indoor unit. Then, the controller selects to enter the corresponding windless sub-section based on the result of the comparison for the optimum experience.

Further, as shown in FIG. 6, the windless stage from cold to warm further includes a comfortable-class windless stage, and in the comfortable-class windless stage, the first baffle plate 120 is rotated to rotate the first baffle plate. The tip of the 120 is fitted so as to be hermetically sealed with the rear end of the second baffle plate 130, the third baffle plate 140 is rotated so as to be attached to the rear wall surface 112, and the airflow is directed to the second baffle plate 130. Allow it to flow out of the upper airflow passage. When the absolute value of the temperature difference between the experience reference temperature and the current set temperature is less than or equal to the first default value, the air conditioner indoor unit is controlled so as to enter the comfortable class windless stage.

In this embodiment, by setting a comfortable-class windless stage, the sorting of the windless stage is further subdivided. In the comfortable-class windless stage, the wind output of the air conditioner indoor unit is moderate, and if the temperature sensor 160 detects that the absolute value of the temperature difference between Tc and Ts (n) is ∈ {-M, M}, the air conditioner It is determined that the set temperature is more appropriate than that of the human body. At this time, the controller controls the swing angles of the first baffle plate 120, the second baffle plate 130, and the third baffle plate 140 to set the air conditioner in a comfortable-class windless stage.

In order to achieve finer control of the windless stage, the comfort class windless stage includes at least three windless subsections that are set to gradually change from cold to warm, with the windless subsection from cold to cold. As it switches to warmer, the fan speed also switches from large to small. Specifically, referring to FIG. 9, the comfort class windlessness stage includes three windless subsections, section M4, section M5 and section M6, respectively. From section M4 to section M6, the wind power output to the air conditioner indoor unit gradually decreases.

In the following, the windless mode includes three stages of cold windless stage, comfortable windless stage, and warm windless stage, and each stage is divided into three windless subsections according to the above embodiment. I will explain with the example given. In this embodiment, the air conditioner indoor unit is specifically divided into 9 sections from M1 to M9, and the current operating temperature of the air conditioner gradually increases from M1 and M2 to M9 in order, and the rotation speed of the fan. Gradually decreases, that is, the user's experience changes from cold to comfortable to hot. The temperature sensor 160 detects the amount of heat dissipated by the user and converts it into a perceived reference temperature, which divides the actual sensation of the human body through the perceived reference temperature into a plurality of stages from cold to comfortable and hot. When the human body feels cold, the controller switches the air conditioner indoor unit to a relatively warm windless sub-section, and when the human body feels hot, the controller switches the air conditioner indoor unit to a relatively cold windless sub-section. Ensure that the user has the best windless experience. Then, the air conditioner indoor unit detects the amount of heat radiated from the target heat source in the room at predetermined time intervals, and adjusts it in a timely manner so as to enter the corresponding windless sub-section based on the change in the user's sensible temperature. You can ensure that you always have the best windless experience.

The above is merely a preferred embodiment of the present application and does not limit the scope of the present application. Equivalent structural transformations made using the contents of the specification and accompanying drawings of the present application under the application concept of the present application, or direct / indirect applications to other related technical fields are all patents of the present application. Included in the scope of protection.

100 Case 110 Wind channel 111 Front wall surface 112 Rear wall surface 113 Accommodating groove 120 First air guide plate 121 First pivot shaft 130 Second air guide plate 131 Second pivot shaft 132 Wind guide 133 Tail wing 140 Third air guide plate 141 Third pivot shaft 142 Wind diffusion hole 150 Panel 151 Detection window 160 Temperature sensor 171 Box body 172 Housing 173 Detection hole 180 Insulation layer

Claims (20)

It is an air conditioner indoor unit including a case and a fan, and has a front wall surface and a rear wall surface installed so as to face each other at the air outlet of the air passage of the case.
The air conditioner indoor unit is further
The first baffle plate rotatably installed in the case with the first pivot shaft installed close to the rear wall surface, and
A second baffle plate rotatably installed in the case with a second pivot shaft located between the first pivot shaft and the front wall surface, which is close to the second pivot shaft. The edge is a second baffle that fits in contact with the edge of the first baffle that is far from the first pivot axis.
A third wind guide plate rotatably installed in the case with a third pivot shaft installed close to the front wall surface and provided with some wind diffusion holes, and a third wind guide plate.
A temperature sensor installed in the case and installed to detect the amount of heat released from the target heat source in the room.
Based on the amount of heat radiated detected by the temperature sensor, the fan, the first baffle plate, the second baffle plate, and the third baffle plate are jointly controlled to adjust the flow rate of the blast and the method of the blast. Including controller and
The air conditioner indoor unit includes a windless mode, and the windless mode includes a plurality of windless stages from cold to warm.
The controller
Obtain the heat dissipation amount of the target heat source in the room,
The amount of heat radiation is converted into the perceived reference temperature of the target heat source, and the perceived reference temperature is compared with the current set temperature of the air conditioner indoor unit.
It is configured to control the air conditioner indoor unit so as to adjust the windless feeling stage based on the temperature difference between the experience reference temperature and the set temperature.
Air conditioner indoor unit. The air conditioner indoor unit according to claim 1, wherein the first pivot shaft extends along the length direction of the first baffle plate. The air conditioner indoor unit according to claim 1, wherein the first pivot shaft is provided on both sides of the first baffle plate opposite to each other in the length direction. The air conditioner indoor unit according to claim 1, wherein the temperature sensor is a thermopile infrared temperature measurement sensor. The case according to claim 1, wherein the case includes a panel, a mounting box for mounting the temperature sensor is installed inside the panel, and a detection window is provided on the panel so as to correspond to the temperature sensor. Air conditioner indoor unit. The air conditioner indoor unit according to claim 5, wherein the temperature sensor is fixed in the mounting box by a screw or a buckle. The mounting box includes a box body and a housing, the box body is provided with a containment chamber for accommodating the temperature sensor, the housing closes the accommodation chamber and is exposed to the detection window, and the housing is exposed to the detection window. The air conditioner indoor unit according to claim 5, wherein a detection hole for exposing the detection head of the temperature sensor is provided. The air conditioner indoor unit according to claim 7, wherein the housing is connected to the box body by a buckle. The second baffle plate includes a wind guide portion and a tail wing installed on the side of the wind guide portion near the second pivot axis, and a recess is stepped between the tail wing and the wind guide portion. The air conditioner indoor unit according to claim 1, which is formed in such a manner that the tip of the first baffle plate can rotate in the recess. The second baffle plate includes a wind guide portion and a tail wing installed on the side of the wind guide portion near the second pivot axis, and a recess is stepped between the tail wing and the wind guide portion. The air conditioner indoor unit according to claim 5, which is formed in such a manner that the tip of the first baffle plate can rotate in the recess. The second baffle plate includes a wind guide portion and a tail wing installed on the side of the wind guide portion near the second pivot axis, and a recess is stepped between the tail wing and the wind guide portion. The air conditioner indoor unit according to claim 7, which is formed in such a manner that the tip of the first baffle plate can rotate in the recess. W ∈ {100 mm, 300 mm}, where W is the width between the side of the wind guide that is far away from the second pivot axis and the side of the wind guide that is close to the second pivot. The air conditioner indoor unit according to claim 9. The air conditioner indoor unit according to claim 1, wherein the accommodation groove is installed in the front wall surface so as to be recessed, and the third baffle plate is rotatably connected to the front wall surface and can be accommodated in the accommodation groove. .. The air conditioner indoor unit according to claim 1, wherein a heat insulating layer is installed on the intake side of the first baffle plate and the second baffle plate. The air conditioner indoor unit according to claim 14, wherein the heat insulating layer is made of an inorganic fiber material or an organic heat insulating material. A control method for an air conditioner indoor unit, wherein the air conditioner indoor unit is an air conditioner indoor unit including a case and a fan, and the front wall surface and the rear wall surface are installed so as to face the air outlet of the air passage of the case. There is
The air conditioner indoor unit is further
The first baffle plate rotatably installed in the case with the first pivot shaft installed close to the rear wall surface, and
A second baffle plate rotatably installed in the case with a second pivot shaft located between the first pivot shaft and the front wall surface, which is close to the second pivot shaft. The edge is a second baffle that fits in contact with the edge of the first baffle that is far from the first pivot axis.
A third wind guide plate rotatably installed in the case with a third pivot shaft installed close to the front wall surface and provided with some wind diffusion holes, and a third wind guide plate.
A temperature sensor installed in the case and installed to detect the amount of heat released from the target heat source in the room.
Based on the amount of heat radiated detected by the temperature sensor, the fan, the first baffle plate, the second baffle plate, and the third baffle plate are jointly controlled to adjust the flow rate of the blast and the method of the blast. Including the controller,
The air conditioner indoor unit includes a windless mode, and the windless mode includes a plurality of windless stages from cold to warm.
The control method is
S1: The step of acquiring the heat dissipation amount of the target heat source in the room,
S2: A step of converting the heat radiation amount acquired in step S1 into a perceived reference temperature of the target heat source and comparing the perceived reference temperature with the current set temperature of the air conditioner indoor unit.
Branch 1, when the experience reference temperature is larger than the current set temperature and the absolute value of the temperature difference between the two is larger than the first default value, the air conditioner room is adjusted to one or more windless stages in the warm direction. Control the machine, correct the current set temperature and enter step S1, the first default value is a step that is a natural number of zero or more, and
Branch 2, when the reference temperature is smaller than the current set temperature and the absolute value of the temperature difference between the two is larger than the first default value, the air conditioner room is adjusted to one or more windless stages in the cold direction. A control method for an air conditioner indoor unit including a step of controlling the machine, correcting the current set temperature, and entering step S1. Multiple windless stages from cold to warm include a cold-grade windless stage and a warm-grade windless stage.
In the cold-class windless stage, the first baffle plate and the second baffle plate are rotated so that the airflow flows out through the two airflow passages on both the upper and lower sides of the second baffle plate, and the second baffle plate is described. Two airflow passages are formed on both the upper and lower sides of the baffle plate,
In the warm-grade windless stage, the first baffle plate is rotated to fit the tip of the first baffle plate so as to be sealed with the rear end of the second baffle plate, and the third guide plate is sealed. The wind plate is rotated to the flow surface of the blower so that the airflow is blown out from the wind diffusion hole of the third guide plate.
When the perceived reference temperature is larger than the current set temperature and the absolute value of the temperature difference between the two is larger than the first default value, the air conditioner indoor unit is controlled so as to enter the warm-class windless stage.
The 16th aspect of the present invention, wherein the air conditioner indoor unit is controlled so as to enter the cold-class windless stage when the perceived reference temperature is smaller than the current set temperature and the absolute value of the temperature difference between the two is larger than the first predetermined value. How to control the air conditioner indoor unit. Both the cold and warm windless stages include at least three windless subsections that are set to gradually change from cold to warm, as the windless subsections switch from cold to warm. The control method for an air conditioner indoor unit according to claim 17, wherein the rotation speed of the fan is also switched from large to small correspondingly. The windless stage from cold to warm further includes a comfortable-class windless stage, and in the comfortable-class windless stage, the first baffle plate is rotated and the tip of the first baffle plate is pointed to the second breeze. It is fitted so as to be sealed with the rear end of the plate, and the third baffle plate is rotated so as to be attached to the front wall surface so that the airflow flows out from the airflow passage above the second baffle plate. ,
The 17th claim, wherein the air conditioner indoor unit is controlled so as to enter a comfortable-class windless stage when the absolute value of the temperature difference between the experience reference temperature and the current set temperature is equal to or less than the first default value. How to control the air conditioner indoor unit. The comfort-grade windless stage includes at least three windless subsections that are set to gradually change from cold to warm, and as the windless subsection switches from cold to warm, the fan speed is equivalent. The control method for an air conditioner indoor unit according to claim 19, which switches from large to small.

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