Air conditioner indoor unit and air conditioner equipment

Abstract

The invention belongs to the technical field of electric appliances, and particularly relates to an air conditioner indoor unit and air conditioner equipment. The system comprises an indoor temperature detection device used for detecting the indoor environment temperature; the air inducing structure is used for inducing outdoor air; the shielding structure is arranged at an air inlet of the air conditioner indoor unit; and the control unit is used for judging whether the outdoor environment temperature reaches a preset temperature threshold value and is lower than the indoor environment temperature detected by the indoor temperature detection device or not, if yes, the air inducing structure is controlled to introduce outdoor air into a room, and the shielding area of the shielding structure on the air inlet is adjusted according to the outdoor environment temperature. According to the indoor unit, the problem that in the prior art, when the outdoor environment temperature is low, indoor refrigeration needs low-frequency operation of the compressor can be avoided, meanwhile, the shielding area of the shielding structure is adjusted according to the outdoor environment temperature, the air outlet temperature of the indoor unit can be appropriate, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application belongs to the field of electrical appliance technology, and specifically relates to an air-conditioning indoor unit and air-conditioning equipment. Background Art

[0002] At present, air conditioners are widely used, and the core component of air conditioners is the compressor.

[0003] In some specific use environments, such as places with high heat generation such as computer rooms, indoor cooling is still required even when the outdoor ambient temperature is low. In view of this situation, the existing solution is to make the air conditioner compressor run at a low frequency.

[0004] However, the low frequency operation of the compressor has certain damage to the compressor and has a certain impact on the life of the compressor. Therefore, it is necessary to solve the technical problem in the prior art that the air conditioner can only cool by running the compressor at a low frequency when the outdoor environment is low. Summary of the invention

[0005] The present application provides an air-conditioning indoor unit and an air-conditioning device, which are used to solve the technical problem in the prior art that when the outdoor environment is low, the air-conditioning can only perform cooling by low-frequency operation of the compressor.

[0006] In a first aspect, the present application provides an air conditioner indoor unit, the air conditioner indoor unit comprising:

[0007] An indoor temperature detection device, used for detecting the indoor ambient temperature;

[0008] An air induction structure for introducing outdoor air;

[0009] A shielding structure provided at the air inlet of the indoor unit;

[0010] A control unit is used to determine whether the outdoor ambient temperature reaches a preset temperature threshold and is lower than the indoor ambient temperature detected by the indoor temperature detection device:

[0011] If so, the air induction structure is controlled to introduce the outdoor air into the room, and the shielding area of ​​the air inlet by the shielding structure is adjusted according to the outdoor ambient temperature.

[0012] In the above preferred technical solution of the air conditioner indoor unit, the control unit is specifically used for:

[0013] The shielding area of ​​the air inlet by the shielding structure is adjusted according to the temperature range of the outdoor ambient temperature.

[0014] In the above preferred technical solution of the air conditioner indoor unit, the control unit is specifically used for:

[0015] Obtaining an upper temperature limit value of a temperature range in which the outdoor ambient temperature is located;

[0016] The shielding area of ​​the air inlet provided by the shielding structure is controlled to increase as the upper temperature limit decreases.

[0017] In the above preferred technical solution of the air conditioner indoor unit, the control unit is specifically used for:

[0018] The shielding area is determined according to the outdoor ambient temperature, the indoor ambient temperature, and an indoor temperature set by a user.

[0019] In the above preferred technical solution of the air conditioner indoor unit, the control unit is specifically used for:

[0020] Acquire the indoor temperature set by the user, and calculate the difference between the indoor temperature set by the user and the indoor ambient temperature;

[0021] The difference is used as an input of a PID control algorithm, and the output of the PID control algorithm is the air outlet temperature of the indoor unit of the air conditioner;

[0022] The shielding area is determined according to the outdoor ambient temperature, the air intake volume per unit time of the induced draft structure, the indoor ambient temperature, and the air outlet temperature of the indoor unit of the air conditioner.

[0023] In the above preferred technical solution of the air conditioner indoor unit, the shielding structure includes:

[0024] Driving part, shielding part;

[0025] The driving unit is fixed to the housing of the air conditioner indoor unit, the shielding member corresponds to the position of the air inlet of the air conditioner indoor unit, and the driving unit is connected to the shielding member to drive the shielding angle of the shielding member under the control of the control unit.

[0026] In the above-mentioned preferred technical solution of the air-conditioning indoor unit, the shielding member is in the shape of a strip, and the length direction of the shielding member is consistent with the length direction of the air inlet of the air-conditioning indoor unit.

[0027] In the above preferred technical solution of the air conditioner indoor unit, the air induced structure comprises: an air inlet duct, an induced draft fan, and a fan arranged toward the air outlet of the air conditioner indoor unit, one end of the air inlet duct is connected to the air inlet end of the induced draft fan, and the other end of the air inlet duct is arranged outdoors, and the fan operates under the control of the control unit;

[0028] Under the control of the control unit, the induced draft fan sucks the outdoor air through the air inlet duct and blows it toward the fan, so that the fan blows the outdoor air into the room through the air outlet of the air conditioner indoor unit.

[0029] In the above-mentioned preferred technical solution of the indoor unit of the air conditioner, the air induction structure further includes a filtering device, and the filtering device is arranged in the air inlet duct and is used to be controlled to be opened or closed by the control unit.

[0030] In a second aspect, the present application provides an air-conditioning device, including the air-conditioning indoor unit as described above, and also including: an outdoor unit and an outdoor temperature detection device for detecting the outdoor temperature.

[0031] The present application provides an air conditioner indoor unit and air conditioner equipment. When it is judged that the outdoor ambient temperature reaches a preset temperature threshold, the outdoor cold air is introduced into the room through the air induction structure for cooling, thereby avoiding the problem in the prior art that when the outdoor ambient temperature is low, the indoor cooling requires the compressor to run at a low frequency. At the same time, the air conditioner indoor unit and air conditioner equipment of the present application are provided with a shielding structure at the air inlet of the indoor unit, and the shielding structure can be controlled by the control unit to change the shielding area of ​​the air inlet of the indoor unit. Since the indoor unit will inhale the hotter air in the room during operation, the hotter air will be mixed with the cold air introduced from the outside after being inhaled into the indoor unit and then blown into the room together. By changing the shielding area of ​​the indoor unit air inlet of the shielding structure, the amount of indoor hot air inhaled by the indoor unit per unit time can be changed, thereby changing the outlet air temperature of the indoor unit. By adjusting the shielding area of ​​the shielding structure according to the outdoor ambient temperature, the outlet air temperature of the indoor unit can be made more suitable, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0033] Figure 1 This is a schematic diagram of an air conditioner indoor unit architecture provided by an embodiment of the present application;

[0034] Figure 2 It is a schematic diagram of the wind induction structure provided in the embodiment of the present application;

[0035] Figure 3 It is a flow chart of a method for determining a shielding area according to an outdoor ambient temperature, an indoor ambient temperature, and an indoor temperature set by a user, provided in an embodiment of the present application;

[0036] Figure 4 It is a schematic diagram of the shielding structure provided in an embodiment of the present application.

[0037] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein, for example.

[0040] In the embodiments of the present application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0041] In some specific use environments, such as places with high heat generation such as computer rooms, indoor cooling is still required even when the outdoor ambient temperature is low. In view of this situation, the existing solution is to make the air conditioner compressor run at a low frequency.

[0042] However, the low-frequency operation of the compressor has certain damage to the compressor and has a certain impact on the life of the compressor. Therefore, it is necessary to solve the technical problem in the prior art that the air conditioner can only cool by running the compressor at a low frequency when the outdoor environment is low.

[0043] In response to the above-mentioned problems in the prior art, the technical concept of the present application is: when the air-conditioning indoor unit determines that the outdoor ambient temperature has reached a preset temperature threshold and the outdoor ambient temperature is lower than the indoor ambient temperature, the air-conditioning indoor unit controls the air-inducing structure to introduce outdoor cold air into the room for cooling. At the same time, a shielding structure is set at the air inlet of the air-conditioning indoor unit. The air-conditioning indoor unit adjusts the shielding area of ​​the shielding structure on the air inlet of the indoor unit according to the outdoor ambient temperature.

[0044] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0045] In a possible embodiment of the present application, an air conditioner indoor unit is provided. Figure 1 is a schematic diagram of an air conditioner indoor unit architecture provided by an embodiment of the present application, Figure 1 The arrows in the middle indicate the direction of air flow. Figure 1 As shown, the air conditioner indoor unit includes: an indoor temperature detection device 101, an air induction structure 102, a shielding structure 103, a control unit 104, an air inlet 105, and an air outlet 106. The control unit 104 can be a control module that can execute programs in the air conditioner indoor unit, such as a separate chip, a control board, etc.

[0046] Indoor temperature detection device 101, used to detect indoor environment temperature;

[0047] The indoor temperature detection device 101 is installed indoors. The specific installation location is not specifically limited in this application. It can be a temperature sensor, which transmits the detected indoor environment temperature data to the control unit 104 by wireless transmission or wired transmission.

[0048] An air induction structure 102 for introducing outdoor air;

[0049] Figure 2 is a schematic diagram of the wind induction structure provided in the embodiment of the present application, Figure 2 The arrow in the middle indicates the direction of air flow. Figure 2 As shown, the induced air structure 102 includes: an air inlet duct 201, an induced draft fan 202, and a fan 203 arranged toward the air outlet 106 of the air conditioner indoor unit. One end of the air inlet duct 201 is connected to the air inlet end of the induced draft fan, and the other end of the air inlet duct 201 is arranged outdoors. The fan 203 operates under the control of the control unit 104.

[0050] The induced draft fan 202 may include a drive motor and an impeller. When the impeller rotates driven by the drive motor, the gas filled between the impellers is thrown out of the impeller under the action of centrifugal force and enters the casing of the induced draft fan 202. The outflow of gas creates a vacuum in the space near the impeller, so that outdoor air can be replenished in the space near the impeller, thereby achieving the inhalation of outdoor air.

[0051] A shielding structure 103 provided at the air inlet 105 of the indoor unit;

[0052] The shielding structure 103 may include a driving structure. The driving structure is controlled by the control unit 104 to drive the strip shielding member to rise and fall, thereby changing the shielding area of ​​the air inlet 105, or the driving structure is controlled by the control unit 104 to change the angle of some of the strip shielding members among the plurality of strip shielding members, thereby changing the shielding area of ​​the air inlet 105.

[0053] The control unit 104 is used to determine whether the outdoor ambient temperature reaches a preset temperature threshold and is lower than the indoor ambient temperature detected by the indoor temperature detection device 101:

[0054] If so, the air inlet structure 102 is controlled to introduce outdoor air into the room, and the shielding area of ​​the air inlet by the shielding structure 103 is adjusted according to the outdoor ambient temperature.

[0055] In this embodiment, the control unit 104 can obtain the outdoor ambient temperature from a temperature sensor disposed outdoors, or obtain the weather forecast of the environment where the indoor unit is located through the Internet, thereby obtaining the outdoor ambient temperature. The control unit 104 obtains the indoor ambient temperature from the indoor temperature detection device 101 .

[0056] When the control unit 104 determines that the outdoor ambient temperature reaches a preset temperature threshold, for example, 16 degrees Celsius, it indicates that the outdoor ambient temperature is low. When the outdoor ambient temperature is lower than the indoor ambient temperature, if the user sends a cooling control instruction, the control unit 104 controls the air induction structure 102 to introduce outdoor air into the room after receiving the cooling control instruction sent by the user, and adjusts the shielding area of ​​the air inlet by the shielding structure 103 according to the outdoor ambient temperature.

[0057] The reason for this design is that the indoor unit will inhale the hotter air in the room during operation. After being inhaled into the indoor unit, the hotter air will mix with the cold air introduced from the outside and then be blown into the room together. By changing the shielding area of ​​the indoor unit air inlet by the shielding structure, the amount of indoor hot air inhaled per unit time by the indoor unit can be changed, thereby changing the air outlet temperature of the indoor unit. By adjusting the shielding area of ​​the shielding structure according to the outdoor ambient temperature, the air outlet temperature of the indoor unit can be made more suitable and not too low.

[0058] In this embodiment, the induced draft fan 202, under the control of the control unit 104, sucks outdoor air through the air inlet duct 201 and blows it toward the fan 203. Since the fan 203 operates under the control of the control unit 104, the fan 203 can blow outdoor air into the room through the air outlet 106 of the air conditioner indoor unit.

[0059] Considering that the sand content of outdoor air may be relatively large in areas with relatively low outdoor temperatures, the air induction structure 102 may optionally further include a filter device, which is disposed in the air inlet duct 201 and is controlled to be opened or closed by the control unit 104. The control unit 104 may obtain the weather forecast of the environment in which the air conditioner indoor unit is located through the Internet, thereby obtaining the sand content of the outdoor air at the current moment. When the sand content of the outdoor air is greater than a preset sand content threshold, the control unit 104 controls the filter device to open, thereby filtering the outdoor air. If the sand content of the outdoor air is lower than the preset sand content threshold, the control unit 104 controls the filter device to close.

[0060] In this embodiment, the filter device may be a liftable filter screen. When the filter device is in the open state, the filter screen rises to close the air inlet duct 201; when the filter device is in the closed state, the filter screen falls.

[0061] The control unit 104 can also control the filtering device to adjust the filtering capacity according to the sand content of the outdoor air.

[0062] The technical effect of this embodiment is that when it is determined that the outdoor ambient temperature reaches the preset temperature threshold, the outdoor cold air is introduced into the room through the air induction structure 102 for cooling, thereby avoiding the problem in the prior art that when the outdoor ambient temperature is low, the indoor cooling requires the compressor to run at a low frequency. At the same time, by changing the shielding area of ​​the shielding structure 103 on the indoor unit air inlet 105, the amount of indoor hot air sucked into the indoor unit per unit time can be changed, thereby also changing the air outlet temperature of the indoor unit. By adjusting the shielding area of ​​the shielding structure 103 according to the outdoor ambient temperature, the air outlet temperature of the indoor unit can be made more suitable, thereby improving the user experience.

[0063] Regarding how to adjust the shielding area of ​​the shielding structure 103 for the air inlet 105 according to the outdoor ambient temperature, in a possible embodiment of the present application, the control unit 104 adjusts the shielding area of ​​the shielding structure 103 for the air inlet 105 according to the temperature range of the outdoor ambient temperature.

[0064] Specifically, the control unit 104 can adjust the shielding area of ​​the air inlet 105 by the shielding structure 103 according to the temperature range of the outdoor ambient temperature by:

[0065] Get the upper temperature limit of the temperature range of the outdoor ambient temperature;

[0066] The shielding area of ​​the air inlet 105 provided by the shielding structure 103 is controlled to increase as the upper temperature limit decreases.

[0067] In this embodiment, different temperature intervals of outdoor ambient temperature can be pre-divided, and the shielding areas corresponding to different temperature intervals can be determined. For example, the temperature intervals can be divided into:

[0068] Temperature range 1, 10℃≤outdoor ambient temperature<16℃;

[0069] Temperature range 2, 5℃≤outdoor ambient temperature<10℃;

[0070] Temperature range 3, 0℃≤outdoor ambient temperature<5℃;

[0071] Temperature range 4, outdoor ambient temperature < 0°C.

[0072] At the same time, it can be determined that:

[0073] In temperature range 1, the shielding area of ​​the shielding structure 103 is equal to the area of ​​the air inlet 105;

[0074] In temperature range 2, the shielding area of ​​the shielding structure 103 is equal to three quarters of the area of ​​the air inlet 105;

[0075] In temperature range 3, the shielding area of ​​the shielding structure 103 is equal to half of the area of ​​the air inlet 105;

[0076] In temperature range 4, the shielding area of ​​the shielding structure 103 does not block the air inlet 105 at all.

[0077] The correspondence between different temperature intervals and different shielding areas can be stored in the storage unit of the air conditioner indoor unit, and the control unit 104 can directly determine the shielding area of ​​the shielding structure 103 for the air inlet 105 according to the interval of the outdoor ambient temperature.

[0078] It should be noted that the above-mentioned division of temperature intervals and the shielding areas corresponding to different temperature intervals are only used to illustrate the principle of this embodiment and do not make specific limitations on this application. The division of temperature intervals can be determined according to actual needs.

[0079] The technical effect of this embodiment is: since the amount of indoor hot air sucked into the indoor unit of the air conditioner per unit time is fixed, the shielding area of ​​the air inlet 105 by the shielding structure 103 is controlled to increase as the upper temperature limit decreases, that is, the lower the outdoor ambient temperature, the smaller the shielding area of ​​the air inlet 105 by the shielding structure 103. The lower the outdoor ambient temperature, the more indoor hot air can be mixed with the outdoor cold air, so that the air outlet temperature of the air outlet 106 will not be too low, thereby improving the user experience.

[0080] Regarding how to adjust the shielding area of ​​the air inlet 105 by the shielding structure 103 according to the outdoor ambient temperature, in a possible embodiment of the present application, the control unit 104 is specifically used to:

[0081] The shielding area is determined according to the outdoor ambient temperature, the indoor ambient temperature, and the indoor temperature set by the user.

[0082] Figure 3 is a flow chart of a method for determining a shielding area according to an outdoor ambient temperature, an indoor ambient temperature, and an indoor temperature set by a user, provided in an embodiment of the present application. Figure 3 As shown, the control unit 104 determines the shielding area according to the outdoor ambient temperature, the indoor ambient temperature, and the indoor temperature set by the user, including:

[0083] S301, obtaining the indoor temperature set by the user, and calculating the difference between the indoor temperature set by the user and the indoor ambient temperature;

[0084] S302, using the difference as the input of a PID control algorithm, and the output of the PID control algorithm is the air outlet temperature of the indoor unit of the air conditioner;

[0085] The difference between the indoor temperature set by the user and the indoor ambient temperature is used as the input of the PID control algorithm. The output of the PID control algorithm is the air outlet temperature of the air conditioner indoor unit, and the air outlet temperature can be dynamically adjusted according to the difference.

[0086] S303, determining the shielding area according to the outdoor ambient temperature, the air intake volume per unit time of the induced draft structure 102, the indoor ambient temperature, and the air outlet temperature of the indoor unit of the air conditioner.

[0087] Specifically, after calculating the outlet air temperature, in this embodiment, if the amount of outdoor air sucked in by the induced draft structure 102 per unit time is fixed, when the outlet air temperature is determined, the amount of indoor air sucked in through the air inlet 105 per unit time can be determined based on the amount of outdoor air sucked in by the induced draft structure 102 per unit time, the outdoor ambient temperature and the indoor ambient temperature.

[0088] After determining the amount of indoor air sucked in through the air inlet 105 per unit time, the blocked area can be determined based on the amount of indoor air sucked in per unit time and the area of ​​the air inlet 105 when the air inlet 105 is not blocked.

[0089] Figure 4 is a schematic diagram of a shielding structure provided in an embodiment of the present application, such as Figure 4 As shown, in a possible embodiment of the present application, the shielding structure 103 includes:

[0090] Driving unit 401, shielding member 402;

[0091] The driving unit 401 is fixed to the housing of the air conditioner indoor unit, and the shielding member 402 corresponds to the position of the air inlet 105 of the air conditioner indoor unit. The driving unit 401 is connected to the shielding member 402 to drive the shielding angle of the shielding member 402 under the control of the control unit 104.

[0092] Specifically, the shielding member 402 is in a strip shape, and the length direction of the shielding member 402 is consistent with the length direction of the air inlet 105 of the air conditioner indoor unit.

[0093] like Figure 4 As shown, there may be multiple shielding members 402. A driving motor may be provided in the driving unit 401, and a mechanical structure may be provided inside the driving unit 401, so that the driving motor can control part or all of the shielding members 402 to rotate under the control of the control unit 104, thereby changing the shielding area of ​​the air inlet 105.

[0094] For example:

[0095] In temperature range 1, when the shielding area of ​​the shielding structure 103 is equal to the area of ​​the air inlet 105, the driving unit 401 can control all shielding members 402 to maintain the minimum position, thereby completely shielding the air inlet 105;

[0096] In temperature range 2, when the shielding area of ​​the shielding structure 103 is equal to three quarters of the area of ​​the air inlet 105, the driving unit 401 can control a shielding member 402 to be at the maximum position, thereby shielding three quarters of the air inlet 105;

[0097] In temperature range 3, the shielding area of ​​the shielding structure 103 is equal to half of the area of ​​the air inlet 105, and the driving unit 401 can control the two shielding members 402 to be at the maximum position, thereby shielding half of the air inlet 105;

[0098] In temperature range 4, the shielding area of ​​the shielding structure 103 does not block the air inlet 105 at all, and the driving unit 401 can control all shielding members 402 to maintain the maximum position, thereby not blocking the air inlet 105 at all.

[0099] It should be noted that, in this embodiment, the number of shielding members 402 and the location of the driving unit 401 can be determined according to actual needs.

[0100] In a possible embodiment of the present application, an air conditioning device includes the air conditioning indoor unit as described above, and further includes: an outdoor unit and an outdoor temperature detection device for detecting the outdoor temperature.

[0101] Specifically, the outdoor temperature detection device may be a temperature sensor, which is arranged outdoors.

[0102] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An air conditioner indoor unit, characterized in that: The air conditioner indoor unit comprises: An indoor temperature detection device, used for detecting the indoor ambient temperature; An air induction structure for introducing outdoor air; A shielding structure provided at the air inlet of the air conditioner indoor unit; A control unit is used to determine whether the outdoor ambient temperature reaches a preset temperature threshold and is lower than the indoor ambient temperature detected by the indoor temperature detection device: If so, the air induction structure is controlled to introduce the outdoor air into the room, and the shielding area of ​​the air inlet by the shielding structure is adjusted according to the outdoor ambient temperature.

2. The air conditioner indoor unit according to claim 1, characterized in that: The control unit is specifically used for: The shielding area of ​​the air inlet by the shielding structure is adjusted according to the temperature range of the outdoor ambient temperature.

3. The air conditioner indoor unit according to claim 2, characterized in that: The control unit is specifically used for: Obtaining an upper temperature limit value of a temperature range in which the outdoor ambient temperature is located; The shielding area of ​​the air inlet provided by the shielding structure is controlled to increase as the upper temperature limit decreases.

4. The air conditioner indoor unit according to claim 1, characterized in that: The control unit is specifically used for: The shielding area is determined according to the outdoor ambient temperature, the indoor ambient temperature, and an indoor temperature set by a user.

5. The air conditioner indoor unit according to claim 4, characterized in that: The control unit is specifically used for: Acquire the indoor temperature set by the user, and calculate the difference between the indoor temperature set by the user and the indoor ambient temperature; The difference is used as an input of a PID control algorithm, and the output of the PID control algorithm is the air outlet temperature of the indoor unit of the air conditioner; The shielding area is determined according to the outdoor ambient temperature, the air intake volume per unit time of the induced draft structure, the indoor ambient temperature, and the air outlet temperature of the indoor unit of the air conditioner.

6. The air conditioner indoor unit according to claim 1, characterized in that: The shielding structure comprises: Driving part, shielding part; The driving unit is fixed to the housing of the air conditioner indoor unit, the shielding member corresponds to the position of the air inlet of the air conditioner indoor unit, and the driving unit is connected to the shielding member to drive the shielding angle of the shielding member under the control of the control unit.

7. The air conditioner indoor unit according to claim 6, characterized in that: The shielding member is strip-shaped, and the length direction of the shielding member is consistent with the length direction of the air inlet of the air conditioner indoor unit.

8. The air conditioner indoor unit according to claim 1, characterized in that: The air induction structure comprises: an air inlet duct, an induced draft fan, and a fan arranged toward the air outlet of the air conditioner indoor unit, one end of the air inlet duct is connected to the air inlet end of the induced draft fan, and the other end of the air inlet duct is arranged outdoors, and the fan operates under the control of the control unit; Under the control of the control unit, the induced draft fan sucks the outdoor air through the air inlet duct and blows it toward the fan, so that the fan blows the outdoor air into the room through the air outlet of the air conditioner indoor unit.

9. The air conditioner indoor unit according to claim 8, characterized in that: The air induction structure further includes a filtering device, which is disposed in the air inlet duct and is configured to be opened or closed under the control of the control unit.

10. An air conditioning device, characterized in that: It comprises an air-conditioning indoor unit as described in any one of claims 1 to 9, and further comprises: an outdoor unit and an outdoor temperature detection device for detecting the outdoor temperature.

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