Air conditioner

Abstract

The present application relates to an air conditioner, belonging to the technical field of air conditioning equipment, the air conditioner comprises: an indoor unit, an air conditioner fan, an indoor heat exchanger, a fresh air fan, an indoor temperature sensor, an aldehyde removal component, a compressor, an outdoor temperature sensor and a controller, wherein the air conditioner fan delivers air conditioning air to the indoor; the indoor heat exchanger increases or decreases the temperature of the air conditioning air; the fresh air fan delivers outdoor fresh air to the indoor; the indoor temperature sensor detects the indoor temperature; the aldehyde removal component adsorbs formaldehyde; the compressor changes the frequency to change the temperature of the air conditioning air; when the air conditioner runs the formaldehyde removal mode, the outdoor temperature reaches a first preset outdoor temperature and is below a second preset outdoor temperature, the indoor temperature reaches a first set temperature; the air conditioner fan sucks indoor air and re-outputs it to the indoor after adsorbing formaldehyde in the air conditioning air by the aldehyde removal component; the controller controls the frequency of the compressor according to the current energy-saving level, the larger the energy-saving level, the lower the frequency of the compressor, so as to reduce energy consumption.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning equipment, and more particularly to an air conditioner. Background Technology

[0002] Formaldehyde is considered a carcinogen, seriously endangering human health. It's present in most building materials used in home renovations to varying degrees. Initially, formaldehyde concentrations are high in newly renovated homes, making them unsuitable for habitation and requiring airing out. Ventilation is often the most effective and economical method for removing formaldehyde, but formaldehyde release is a long and slow process. Natural ventilation is slow, especially at low temperatures, and may even stop releasing formaldehyde altogether. Air conditioning, or air conditioner, is a device that artificially regulates and controls parameters such as temperature, humidity, and airflow within a building or structure. Fresh air conditioning systems, in particular, are a type of healthy and comfortable air conditioner that utilizes centrifugal fans to facilitate air exchange between indoor and outdoor air, and also purify the air.

[0003] Existing fresh air conditioning systems do not consider users' needs for formaldehyde removal, requiring users to manually turn on the fresh air system to ventilate the room and remove formaldehyde. Furthermore, rooms using fresh air systems for formaldehyde removal are usually unsupervised, leaving users with no choice but to simply run the system continuously or simultaneously turn on the air conditioner's heating function to raise the ambient temperature and promote formaldehyde release. To achieve maximum removal efficiency, the fresh air fan speed is typically set to maximum, and the air conditioner's set temperature is also set to maximum. This continuous high-load operation significantly impacts the air conditioner's lifespan and results in high energy consumption, affecting economic efficiency. Summary of the Invention

[0004] This invention at least partially solves the problem in related technologies where air conditioners require long-term high-load operation for formaldehyde removal, which affects economic efficiency.

[0005] Therefore, this application aims to provide an air conditioner that adjusts the indoor temperature according to the outdoor temperature and energy efficiency rating, thereby reducing energy consumption.

[0006] To achieve the above objectives, the present invention provides an air conditioner, comprising:

[0007] The indoor unit is equipped with an air conditioning outlet and a fresh air outlet;

[0008] An air conditioning fan is installed inside the indoor unit, and the air conditioning fan is used to deliver air conditioning air to the room through the air conditioning outlet;

[0009] An indoor heat exchanger, which is installed inside the indoor unit, allows heat exchange between the refrigerant flowing inside and the air to form a heating cycle or a cooling cycle, thereby increasing or decreasing the temperature of the air conditioning air output to the room.

[0010] A fresh air fan is arranged in the indoor unit, and is configured to deliver outdoor fresh air to the indoor through a fresh air outlet, and to exhaust indoor air to the outdoor;

[0011] An indoor temperature sensor is arranged in the indoor unit, and is configured to detect an indoor temperature;

[0012] An aldehyde removal component is arranged in the indoor unit, and is configured to adsorb formaldehyde in air conditioning air;

[0013] An outdoor unit is arranged in the outdoor;

[0014] A compressor is arranged in the outdoor unit, and is configured to change a frequency to increase or decrease a flow of refrigerant in the indoor heat exchanger, so as to change a temperature of the air conditioning air;

[0015] An outdoor temperature sensor is arranged in the outdoor unit, and is configured to detect an outdoor temperature;

[0016] A controller is configured to: when the air conditioner operates in the formaldehyde removal mode, the outdoor temperature sensor detects the outdoor temperature;

[0017] When the outdoor temperature reaches a first preset outdoor temperature and is below a second preset outdoor temperature, the controller controls the indoor heat exchanger to perform a heating cycle to make the indoor temperature reach a first set temperature, so as to make the formaldehyde precipitate at a first speed; the air conditioning fan sucks indoor air and re-outputs the indoor air to the indoor after adsorbing the formaldehyde in the air conditioning air by the aldehyde removal component; the controller controls the frequency of the compressor according to a current energy saving level, and the frequency of the compressor is lower when the energy saving level is higher, and the frequency of the compressor is adjusted according to the energy saving level, so as to reduce energy consumption.

[0018] In some embodiments of the present application, the controller is configured to, when the outdoor temperature reaches above the second preset outdoor temperature, control the indoor heat exchanger to perform a heating cycle to make the indoor temperature reach a second set temperature, so as to make the indoor formaldehyde precipitate at a second speed, and reduce the indoor-outdoor temperature difference to reduce energy consumption; the fresh air fan operates to exhaust the indoor air with formaldehyde to the outdoor; and the first speed is less than the second speed.

[0019] In some embodiments of the present application, when the air conditioning fan sucks indoor air and re-outputs the indoor air to the indoor after adsorbing the formaldehyde in the air conditioning air by the aldehyde removal component, the higher the indoor temperature is, the greater the power of the air conditioning fan is.

[0020] In some embodiments of the present application, when the air conditioning fan sucks indoor air and re-outputs the indoor air to the indoor after adsorbing the formaldehyde in the air conditioning air by the aldehyde removal component, the rotating speed of the air conditioning fan is an air conditioning rotating speed level multiplied by the indoor temperature.

[0021] In some embodiments of the present application, when the air conditioner fan sucks indoor air and outputs the air conditioner air to the indoor after adsorbing formaldehyde in the air conditioner air by the formaldehyde removal element, the rotation speed of the air conditioner fan is adjusted according to the energy saving level to reduce energy consumption, the larger the energy saving level, the lower the rotation speed of the air conditioner fan, and the lower the energy consumption.

[0022] In some embodiments of the present application, when the air conditioner fan sucks indoor air and outputs the air conditioner air to the indoor after adsorbing formaldehyde in the air conditioner air by the formaldehyde removal element, the rotation speed of the air conditioner fan is adjusted according to the energy saving level to reduce energy consumption, the larger the energy saving level, the lower the rotation speed of the air conditioner fan, and the lower the energy consumption.

[0023] In some embodiments of the present application, further comprising:

[0024] A deflector is arranged on the indoor unit and close to one side of the air conditioner air outlet, which is used to adjust the air direction of the air conditioner air passing through the air conditioner air outlet;

[0025] A driving element is used to drive the deflector to flip;

[0026] When the outdoor temperature reaches the first preset outdoor temperature, the driving element is controlled to drive the deflector to reciprocally flip to make the air conditioner air passing through the air conditioner air outlet reciprocally sweep the air, so as to accelerate the indoor air flow to accelerate the rate of formaldehyde precipitation.

[0027] In some embodiments of the present application, when the outdoor temperature does not reach the first preset outdoor temperature, the controller controls the air conditioner fan to enter the standby state.

[0028] In some embodiments of the present application, a humidifier is arranged in the indoor unit, which is used to increase the indoor humidity to accelerate the speed of formaldehyde precipitation;

[0029] When the outdoor temperature reaches the first preset outdoor temperature, the humidifier operates to increase the indoor humidity, thereby increasing the precipitation rate of formaldehyde.

[0030] In some embodiments of the present application, the energy saving level includes a first energy saving level, a second energy saving level and a third energy saving level.

[0031] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic diagram of the overall structure of an air conditioner according to an embodiment of the present application;

[0033] Figure 2 is a schematic diagram of the overall structure of an air conditioner according to an embodiment of the present application;

[0034] Figure 3 is a front view of an air conditioner according to an embodiment of the present application;

[0035] Figure 4 is a schematic diagram of the overall structure of an air conditioner according to an embodiment of the present application;

[0036] Figure 5 is Figure 4 is an enlarged schematic diagram of part A in FIG. 8;

[0037] Figure 6 is a work flow diagram of an aldehyde removal mode according to an embodiment of the present application;

[0038] Figure 7 is a work flow diagram of an aldehyde removal mode according to an embodiment of the present application;

[0039] Figure 8 is a work flow diagram of an aldehyde removal mode according to an embodiment of the present application;

[0040] Figure 9 is a work flow diagram of an aldehyde removal mode according to an embodiment of the present application;

[0041] Figure 10 is a schematic diagram of the working state of an air conditioner fan and a compressor at different energy-saving levels according to an embodiment of the present application.

[0042] In the above figures: 100, indoor unit; 200, air conditioner air outlet; 300, fresh air outlet; 400, air deflector. DETAILED DESCRIPTION

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected", and the like are used broadly and encompass direct and indirect mounting, connecting, and fixing, etc. such as fixed connection, detachable connection or integral connection, mechanical connection or electrical connection or communicable connection, and they can be directly connected or indirectly connected through an intermediate medium, and they can be an internal connection or an interaction between two elements. Unless otherwise specifically defined, the above terms are to be understood as a specific embodiment in the present application.

[0045] In the present application, unless specifically defined otherwise, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is lower than that of the second feature.

[0046] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like mean that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0047] In the following, the present application will be described in detail through exemplary embodiments. However, it should be understood that the elements, structures and features in one embodiment can also be beneficially combined into other embodiments without further description.

[0048] In the present application, an air conditioner performs a refrigeration cycle of an air conditioner indoor unit by using a compressor, a condenser, an expansion valve, and an indoor heat exchanger. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to air that has been adjusted and heat-exchanged. The compressor discharges refrigerant gas in a low-temperature and low-pressure state to refrigerant gas in a high-temperature and high-pressure state by compression. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into liquid-phase refrigerant in a low pressure. The indoor heat exchanger evaporates the refrigerant expanded in the expansion valve, and returns refrigerant gas in a low-temperature and low-pressure state to the compressor. The indoor heat exchanger can achieve a refrigeration effect by heat-exchanging with a material to be cooled using latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner indoor unit can adjust the temperature of an indoor space. An outdoor unit of the air conditioner indoor unit refers to a portion of the refrigeration cycle including the compressor and an outdoor heat exchanger, an indoor unit of the air conditioner indoor unit includes the indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit. The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an indoor heat exchanger. When the indoor heat exchanger functions as a condenser, the air conditioner indoor unit functions as a heater in a heating mode, and when the indoor heat exchanger functions as an indoor heat exchanger, the air conditioner indoor unit functions as a cooler in a cooling mode.

[0049] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0050] As shown in FIG. 1, the air conditioner according to the present application includes an indoor unit 100 and an outdoor unit 200. The indoor unit 100 includes an indoor heat exchanger 110, an indoor fan 120, and an indoor expansion valve 130. The outdoor unit 200 includes a compressor 210, an outdoor heat exchanger 220, and an outdoor fan 230. Figures 1 to 5As shown, in one illustrative embodiment of the air conditioner of the present application, the air conditioner comprises: an indoor unit 100, an air conditioner fan, an indoor heat exchanger, a fresh air fan, an indoor temperature sensor, an aldehyde removal element, a compressor, an outdoor temperature sensor and a controller, wherein the indoor unit 100 is a floor or wall type and is arranged in the indoor, the indoor unit 100 is provided with an air conditioner air outlet 200 and a fresh air outlet 300, the indoor unit 100 has a front panel, the air conditioner air outlet 200 and the fresh air outlet 300 are arranged on the front panel, and the air conditioner air outlet 200 and the fresh air outlet 300 are arranged separately. The air conditioner fan is arranged in the indoor unit 100, and the air conditioner fan is used to deliver the air conditioner air to the indoor through the air conditioner air outlet 200; the indoor unit 100 is internally provided with an air conditioner air duct, the air conditioner air duct is in communication with the air conditioner air outlet 200, the air conditioner fan is in communication with the air conditioner air duct, and the air conditioner fan delivers the air to the indoor through the air conditioner air duct and the air conditioner air outlet 200 when the air conditioner fan is running. The indoor heat exchanger is arranged in the indoor unit 100, and the heat exchange between the refrigerant flowing in the indoor heat exchanger and the air forms a heating cycle or a refrigeration cycle to increase or decrease the temperature of the air conditioner air delivered to the indoor; the indoor heat exchanger is arranged at the air inlet side of the air conditioner fan, and the indoor heat exchanger warms or cools the air to change the temperature of the air conditioner air entering the indoor to change the indoor temperature. The fresh air fan is arranged in the indoor unit 100, and the fresh air fan is used to deliver the outdoor fresh air to the indoor through the fresh air outlet 300 to discharge the indoor air to the outdoor; the indoor unit 100 is internally provided with a fresh air duct, one end of the fresh air duct is in communication with the fresh air outlet 300, and the other end is in communication with the outdoor. The fresh air fan is used to deliver the outdoor fresh air to the indoor through the fresh air duct and the fresh air outlet 300 to discharge the indoor air to the outdoor. The indoor temperature sensor is arranged in the indoor unit 100 and is used to detect the indoor temperature. The aldehyde removal element is arranged in the indoor unit 100 and is arranged in the air conditioner air duct, and the aldehyde removal element is used to adsorb the formaldehyde in the air conditioner air; the formaldehyde in the air conditioner air inside the air conditioner air duct is adsorbed by the aldehyde removal element and then output to the indoor. The outdoor unit is arranged in the outdoor, the outdoor temperature sensor is arranged in the outdoor unit, and the outdoor temperature sensor is used to detect the outdoor temperature. The compressor is arranged in the outdoor unit, the compressor is connected with the indoor heat exchanger, and the compressor changes the frequency to increase or decrease the flow of the refrigerant in the indoor heat exchanger to change the temperature of the air conditioner air.

[0051] Please refer to Figure 6, the controller is configured to: the air conditioner runs the formaldehyde removal mode (step S1), the outdoor temperature sensor detects the outdoor temperature (step S2); determine whether the current outdoor temperature reaches the first preset outdoor temperature (step S3). Whether the current outdoor temperature reaches the first preset outdoor temperature, the current outdoor temperature reaches the first preset outdoor temperature and enters step S4. Determine whether the outdoor temperature reaches the second preset outdoor temperature (step S5), when the outdoor temperature reaches the first preset outdoor temperature and is below the second preset outdoor temperature, enter steps S6 and S7, the controller controls the indoor heat exchanger to heat cycle to make the indoor temperature reach the first set temperature (step S6), so that the formaldehyde is precipitated at a first speed; the air conditioner fan inhales indoor air and outputs it to the indoor after adsorbing the formaldehyde in the air conditioner wind through the formaldehyde removal element (step S7); the controller controls the frequency of the compressor according to the current energy saving level, the larger the energy saving level, the lower the frequency of the compressor, and the frequency of the compressor is adjusted according to the energy saving level to reduce energy consumption.

[0052] At present, when the house is decorated or renovated, there are a large amount of formaldehyde in the indoor furniture and board which affect human health. When the existing air conditioner discharges indoor formaldehyde, it usually heats the indoor air through the air conditioner and discharges or adsorbs formaldehyde through fresh air or activated carbon. However, in this way, in order to ensure that the indoor temperature can be raised enough, the indoor temperature is heated at the highest set temperature, which consumes a lot of energy and is poor in economy. The air conditioner of the present scheme uses an outdoor temperature sensor to detect the outdoor temperature, and when the outdoor temperature reaches the first preset outdoor temperature and is below the second preset outdoor temperature, the controller controls the indoor heat exchanger to heat cycle, and adjusts the power of the compressor according to the current energy saving level of the air conditioner, so that the indoor temperature reaches the first set temperature. According to the outdoor temperature, the indoor temperature is adjusted to avoid the compressor directly entering high load operation, saving energy. Formaldehyde is precipitated at a first speed, the indoor and outdoor temperature difference is reduced to reduce energy consumption; the air conditioner fan inhales indoor air and outputs it to the indoor after adsorbing the formaldehyde in the air conditioner wind through the formaldehyde removal element, completing the removal of formaldehyde and reducing the formaldehyde content in the indoor air, ensuring the formaldehyde removal efficiency while reducing energy consumption.

[0053] In some embodiments, an outdoor heat exchanger is arranged inside the outdoor unit. The outdoor heat exchanger is in communication with the indoor heat exchanger and the compressor. The compressor compresses the refrigerant and passes through the indoor heat exchanger and the outdoor heat exchanger, and the temperature of the air conditioner wind is increased or decreased through evaporation or condensation of the indoor heat exchanger and the outdoor heat exchanger, and the power of the compressor is changed to change the temperature of the air conditioner wind passing through the indoor heat exchanger.

[0054] Please refer to Figures 6 to 9In some embodiments, when the outdoor temperature does not reach the first preset outdoor temperature, the controller controls the air conditioner fan to enter a standby state. Because the indoor temperature is inevitably proportional to the outdoor temperature, when the outdoor temperature is low, the indoor temperature will also be low, which is not conducive to the release of formaldehyde in the furniture or board. And when the indoor temperature is raised, the compressor needs to run at high power to raise the indoor temperature as high as possible, which will cause a large amount of energy consumption. Therefore, in this scheme, when the outdoor temperature is low, the indoor heat exchanger and the air conditioner fan do not work, so as to avoid excessive energy consumption.

[0055] In some embodiments, the first preset outdoor temperature can be selected according to the application scenario, for example, the outdoor temperature is lower than the first preset outdoor temperature at night, and the outdoor temperature is higher than the first preset outdoor temperature during the day.

[0056] In some embodiments, the first preset outdoor temperature is greater than or equal to 5℃ and less than or equal to 10℃. In some embodiments, according to the average level of temperature in China, the first preset outdoor temperature is set to 10℃.

[0057] In some embodiments, the second set temperature is greater than or equal to 20℃ and less than or equal to 30℃.

[0058] In some embodiments, the energy-saving level includes a first energy-saving level, a second energy-saving level and a third energy-saving level. The values of the first set temperature are different under the three energy-saving levels, so the power of the compressor is different, so as to save energy according to different energy-saving levels. The energy consumption can be set according to the user's demand.

[0059] In some embodiments, the user can adjust the energy-saving level of the air conditioner according to the panel or the remote controller.

[0060] Please refer to Figures 6 to 10 In some embodiments, when the outdoor temperature reaches the first preset outdoor temperature and is below the second preset outdoor temperature, the first set temperature is the first increment temperature divided by the energy-saving level plus the outdoor temperature (step S6). Wherein the first increment temperature is greater than or equal to 5℃ and less than or equal to 10℃. When calculating the first set temperature, the first energy-saving level, the second energy-saving level and the third energy-saving level are set as constants, the second energy-saving level is greater than the first energy-saving level, and the third energy-saving level is greater than the second energy-saving level. Assuming that the first energy-saving level, the second energy-saving level and the third energy-saving level are 1, 2 and 3 respectively, and the outdoor temperature is 25℃, the first increment temperature is 8℃, and the second energy-saving level is taken as an example, the first set temperature is 25℃+8℃ / 2=29℃.

[0061] Please refer to Figures 6 to 10In some embodiments, when the outdoor temperature reaches above the second preset outdoor temperature, the controller enters steps S8 and S9, the controller controls the indoor heat exchanger to perform a heating cycle to make the indoor temperature reach the second set temperature, so that the indoor formaldehyde is precipitated at a second speed (step S8), and the indoor-outdoor temperature difference is reduced to reduce energy consumption; the fresh air fan operates to discharge the indoor air containing formaldehyde to the outdoor. The first speed is less than the second speed. When the outdoor temperature reaches above the second preset outdoor temperature, the indoor temperature is necessarily in a higher state, and at this indoor temperature, the formaldehyde in the indoor furniture or board is precipitated at a faster rate. At this time, the controller controls the indoor heat exchanger to perform a heating cycle to make the indoor temperature reach the second set temperature, and the second set temperature is greater than the first set temperature, so that the formaldehyde in the furniture or board is precipitated at a faster rate. And when the outdoor temperature reaches above the second preset outdoor temperature, the temperature in the room is already at a relatively high standard, so the compressor only needs a small additional power to make the indoor temperature reach the second set temperature, thereby improving the formaldehyde removal effect while reducing the power burden of the compressor as much as possible and saving energy consumption. And under this condition, that is, when the outdoor temperature reaches above the second preset outdoor temperature, the indoor formaldehyde removal method becomes a fresh air cycle to discharge the indoor air containing formaldehyde to the outdoor. Because the outdoor temperature reaching above the second preset outdoor temperature represents that the outdoor temperature has reached a relatively high temperature, even if the outdoor air enters the indoor, it will not have a great impact on the indoor temperature, and the formaldehyde precipitation rate can still be guaranteed, so the outdoor fresh air is output to the indoor through the fresh air outlet 300 by using the fresh air fan to discharge the indoor air containing formaldehyde to the outdoor. Not only saves energy consumption, but also completely removes formaldehyde to ensure human health.

[0062] Please refer to Figures 6 to 10 In some embodiments, when the outdoor temperature reaches above the second preset outdoor temperature, the second set temperature is the outdoor temperature plus the second increment temperature divided by the energy saving level. The second increment temperature is greater than or equal to 5°C and less than or equal to 15°C. It is worth noting that in order to avoid the second set temperature being too high to cause a fire hazard, the second set temperature is not more than 50°C. That is, when the outdoor temperature plus the second increment temperature exceeds 50°C, the second set temperature is 50°C. Assuming that the first, second and third energy saving levels are 1, 2 and 3 respectively, and the outdoor temperature is 25°C, the second increment temperature is 10°C, and the second energy saving level is used as an example, the first set temperature is 25°C+10°C / 2=30°C. The power of the compressor is controlled by the energy saving level to save energy consumption.

[0063] Please refer to Figure 2 and Figure 3In some embodiments, the air conditioner further comprises: a deflector 400 and a driving member, wherein the deflector 400 is arranged on the indoor unit 100 and close to one side of the air outlet 200 of the air conditioner, and is used to adjust the air direction of the air conditioner air passing through the air outlet 200 of the air conditioner; the driving member is used to drive the deflector 400 to flip; when the outdoor temperature reaches the first preset outdoor temperature, the driving member drives the deflector 400 to reciprocally flip to make the air conditioner air passing through the air outlet 200 of the air conditioner reciprocally sweep (step S4), so as to accelerate the indoor air flow to accelerate the rate of formaldehyde release.

[0064] In some embodiments, the driving member includes but is not limited to a motor and a motor. The driving member is arranged in the indoor unit 100, and the output shaft of the driving member is connected with the deflector 400. The controller is electrically connected with the driving member. When the air conditioner fan starts, the controller synchronously controls the output shaft of the driving member to reciprocally rotate, so as to realize the reciprocating motion of the deflector 400. The air conditioner air guided by the deflector 400 blows in the room, accelerates the air flow speed around the furniture or the board, and accelerates the speed of formaldehyde release from the clamp or the board.

[0065] In some embodiments, a humidifier is arranged in the indoor unit 100. The humidifier is used to increase the indoor humidity to accelerate the rate of formaldehyde release. When the outdoor temperature reaches the first preset outdoor temperature, the humidifier operates to increase the indoor humidity, so as to increase the release rate of formaldehyde (step S4). The higher the humidity of the environment where formaldehyde is located, the higher the release rate of formaldehyde. Therefore, when the air conditioner fan works, the controller controls the humidifier to operate, and the humidifier humidifies the room.

[0066] In some embodiments, a water tank containing water is arranged in the indoor unit 100. The water tank is communicated with the humidifier. When the humidifier starts, the water in the water tank is atomized and input into the room.

[0067] Please refer to Figures 7 to 9 In some embodiments, a humidity detector is arranged in the indoor unit 100. The humidity detector is used to detect the indoor humidity. The controller is configured to set a conventional dehumidification setting value and a dehumidification setting value for removing formaldehyde. The dehumidification setting value for removing formaldehyde is greater than the conventional dehumidification setting value. When the air conditioner enters the formaldehyde removal mode, the humidity detector detects the indoor humidity. When the indoor humidity is greater than the dehumidification setting value for removing formaldehyde, the dehumidification mode is entered. After entering the formaldehyde removal mode, the dehumidification setting value for removing formaldehyde replaces the conventional dehumidification setting value. Therefore, even if the indoor humidity increases, the air conditioner will not enter the dehumidification mode, so as to ensure that the indoor humidity always increases, thereby increasing the release rate of formaldehyde in the room.

[0068] In some embodiments, when the outdoor temperature reaches the first preset outdoor temperature, the humidifier operates to make the indoor reach the preset humidity, and the preset humidity is 90% to 99%. That is, after the humidifier operates, the humidifier humidifies the indoor to a humidity value between 90% to 99% to as high as possible to improve the indoor humidity and maximize the increase of the formaldehyde release rate.

[0069] Please refer to Figures 7 to 9 In some embodiments, the indoor unit 100 is internally provided with a humidity detector, and the humidity detector detects the indoor humidity. The controller is configured to set a humidity hysteresis range, and when the indoor humidity is within the humidity hysteresis range, the humidifier is controlled to stop working; when the indoor humidity is within the humidity hysteresis range, the humidifier is closed. The humidity detector detects the indoor humidity. When the indoor humidity reaches the preset humidity, the humidifier stops. However, after the humidifier stops, the indoor humidity will change continuously. Taking the preset humidity of 90% as an example, when the humidity detector detects that the indoor humidity reaches 90%, the humidifier is controlled to be closed, but the indoor humidity will be lower than 90% within a few seconds after the humidifier is closed, at which time the humidifier is turned on to humidify the indoor. Within a few seconds after the humidifier is turned on, the indoor humidity reaches 90% again, the humidifier is controlled to be closed, and the above actions are repeated. Therefore, in order to avoid the humidifier being frequently turned on and off, the humidity hysteresis range is set, which is the preset humidity plus the humidity hysteresis value. The humidity hysteresis value is greater than or equal to 5% and less than or equal to 10%. Taking the preset humidity of 90% and the humidity hysteresis value of 5% as an example, when the humidity detector detects that the indoor humidity is between 90% and 95%, the humidifier is closed and stopped working.

[0070] Please refer to Figure 9 and Figure 10 In some embodiments, when the air conditioner fan sucks indoor air and outputs the air to the indoor after the formaldehyde in the air conditioner air is adsorbed by the formaldehyde removal element, the higher the indoor temperature, the greater the power of the air conditioner fan. The higher the temperature in the indoor, the more formaldehyde in the air, so the air conditioner air needs to be larger to ensure that the formaldehyde can be adsorbed by the formaldehyde removal element.

[0071] In some embodiments, when the air conditioner fan sucks indoor air and outputs the air to the indoor after the formaldehyde in the air conditioner air is adsorbed by the formaldehyde removal element, the speed of the air conditioner fan is the air conditioner speed level multiplied by the indoor temperature divided by the energy saving level. Among them, the air conditioner speed level is greater than or equal to 10 and less than or equal to 40, and the air conditioner speed level is determined according to the actual situation.

[0072] Please refer to Figure 9 and Figure 10In some embodiments, when the air conditioner fan sucks indoor air and outputs the air conditioner air to the indoor after adsorbing formaldehyde in the air conditioner air by the formaldehyde removal element, the rotation speed of the air conditioner fan is adjusted according to the energy saving level to reduce energy consumption. The greater the energy saving level, the lower the rotation speed of the air conditioner fan, and the lower the energy consumption. Assuming that the first, second and third energy saving levels are 1, 2 and 3 respectively, the temperature in the room is 30℃, the air conditioner rotation speed level is 40, and the third energy saving level is taken as an example, the rotation speed of the air conditioner fan is 40x30 / 3=400rpm. It is worth noting that the rotation speed of the air conditioner fan is at least 200rpm and at most 1200rpm. Therefore, when the calculated rotation speed of the air conditioner fan is less than 200rpm, the air conditioner fan runs at 200rpm; when the calculated rotation speed of the air conditioner fan is greater than 1200rpm, the air conditioner fan runs at 1200rpm. This scheme adjusts the rotation speed of the air conditioner fan according to the demand, while ensuring the formaldehyde removal effect, and reduces the energy consumption.

[0073] In some embodiments, when the fresh air fan operates to discharge indoor air containing formaldehyde to the outdoor, the higher the indoor temperature, the greater the power of the fresh air fan. The higher the temperature in the room, the more formaldehyde in the air, so the greater the amount of fresh air required to ensure that the formaldehyde can be discharged.

[0074] Please refer to Figure 9 and Figure 10 In some embodiments, when the fresh air fan operates to discharge indoor air containing formaldehyde to the outdoor, the rotation speed of the fresh air fan is the fresh air rotation speed level multiplied by the indoor temperature. The fresh air rotation speed level is greater than or equal to 8 and less than or equal to 30, and the fresh air rotation speed level is determined according to the actual situation. For example, when the temperature in the room is 40℃ and the air conditioner rotation speed level is 20, the rotation speed of the air conditioner fan is 40x20=800rpm. This scheme adjusts the rotation speed of the fresh air fan according to the demand, while ensuring the formaldehyde removal effect, and reduces the energy consumption.

[0075] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An air conditioner, characterized in that, It includes: The indoor unit is equipped with an air conditioning outlet and a fresh air outlet; An air conditioning fan is installed inside the indoor unit, and the air conditioning fan is used to deliver air conditioning air to the room through the air conditioning outlet; An indoor heat exchanger, which is installed inside the indoor unit, allows heat exchange between the refrigerant flowing inside and the air to form a heating cycle or a cooling cycle, thereby increasing or decreasing the temperature of the air-conditioned air output to the room. A fresh air fan is installed inside the indoor unit. The fresh air fan is used to deliver fresh outdoor air to the room through the fresh air outlet, so as to exhaust indoor air to the outside. An indoor temperature sensor is installed inside the indoor unit and is used to detect the indoor temperature; A formaldehyde removal component is installed inside the indoor unit and is used to adsorb formaldehyde in the air conditioning air. The outdoor unit is installed outdoors; A compressor, located in the outdoor unit, changes its frequency to increase or decrease the flow rate of refrigerant in the indoor heat exchanger to change the temperature of the air conditioning air. An outdoor temperature sensor is installed inside the outdoor unit to detect the outdoor temperature; The controller is configured such that when the air conditioner is running in formaldehyde removal mode, the outdoor temperature sensor detects the outdoor temperature. When the outdoor temperature reaches the first preset outdoor temperature and is below the second preset outdoor temperature, the controller controls the indoor heat exchanger to perform a heating cycle to bring the indoor temperature to the first set temperature, so that formaldehyde is released at the first rate; the air conditioner fan draws in indoor air and, after adsorbing the formaldehyde in the air conditioner air through the formaldehyde removal component, re-exports it into the room; the controller controls the frequency of the compressor according to the current energy saving level, the higher the energy saving level, the lower the frequency of the compressor, and adjusts the frequency of the compressor according to the energy saving level. When the air conditioner fan draws in indoor air and adsorbs formaldehyde in the air conditioner air through the formaldehyde removal component before re-exporting it indoors, the speed of the air conditioner fan is the air conditioner speed rating multiplied by the indoor temperature and divided by the energy-saving rating. When the outdoor temperature reaches or exceeds the second preset outdoor temperature, the controller controls the indoor heat exchanger to perform a heating cycle to bring the indoor temperature to the second set temperature, so that the formaldehyde in the room is released at a second rate; the fresh air fan runs to exhaust the indoor air containing formaldehyde to the outside; wherein, the first rate is less than the second rate.

2. The air conditioner according to claim 1, characterized in that, Also includes: An air guide plate is installed on the indoor unit and on the side near the air conditioner outlet, and is used to adjust the direction of the air conditioning air passing through the air conditioner outlet. A driving component, the driving component being used to drive the air guide plate to rotate; When the outdoor temperature reaches the first preset outdoor temperature, the drive unit is controlled to drive the air guide plate to rotate back and forth so that the air conditioning air passing through the air conditioning outlet can be swept back and forth, thereby accelerating the indoor air flow and accelerating the formaldehyde release rate.

3. The air conditioner according to claim 1, characterized in that, When the outdoor temperature does not reach the first preset outdoor temperature, the controller controls the air conditioner fan to enter standby mode.

4. The air conditioner according to claim 1, characterized in that, The indoor unit is equipped with a humidifier, which is used to increase indoor humidity in order to accelerate the release of formaldehyde. When the outdoor temperature reaches the first preset outdoor temperature, the humidifier operates to increase the indoor humidity, thereby increasing the formaldehyde release rate.

5. The air conditioner according to claim 1, characterized in that, The energy-saving levels include the first energy-saving level, the second energy-saving level, and the third energy-saving level.

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