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, an outdoor unit, a formaldehyde sensor, an outdoor temperature sensor and a controller; 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 fresh air to the indoor; the aldehyde removal component adsorbs formaldehyde; the formaldehyde sensor detects the concentration of indoor formaldehyde; when the air conditioner runs the formaldehyde removal mode, the outdoor temperature is detected; when the outdoor temperature reaches above the second preset outdoor temperature, the indoor heat exchanger performs a heating cycle to make the indoor temperature reach the second set temperature; the fresh air fan operates to discharge indoor air containing formaldehyde to the outdoor, the formaldehyde sensor detects the indoor formaldehyde content, the higher the indoor formaldehyde content, the faster the speed of the fresh air fan, the speed of the fresh air fan is adjusted according to the indoor formaldehyde concentration, so as to reduce energy consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning equipment, in particular to an air conditioner. BACKGROUND

[0002] Formaldehyde is considered a carcinogen, which seriously endangers human health. Formaldehyde is found in general decoration materials. The initial formaldehyde concentration is high after decoration, which is not suitable for living and needs to be aired. Ventilation is the most effective and economical method for removing formaldehyde, but the release of formaldehyde is a long-term and slow process. Natural ventilation is slow, especially at low ambient temperature. When the temperature is too low, the release is even stopped. An air conditioner is an air conditioner that uses artificial means to adjust and control the temperature, humidity, flow rate and other parameters of the air in the environment of a building or structure. The fresh air conditioner is a healthy and comfortable air conditioner with fresh air function. It uses a centrifugal fan to realize the circulation and ventilation between room air and outdoor air, and has the function of purifying air.

[0003] The existing fresh air conditioner does not consider the application requirement of the user for removing formaldehyde. The user needs to manually open the fresh air to achieve indoor ventilation to remove formaldehyde. And the room using the fresh air system to remove formaldehyde is usually unattended. The user can only simply turn on the fresh air system for a long time, or turn on the air conditioner system to heat at the same time to increase the ambient temperature to promote the release of formaldehyde. In order to achieve the maximum removal effect, the fresh air speed is usually adjusted to the highest, and the air conditioner temperature is set to the highest. At this time, the air conditioner is running at high load for a long time, which has a great influence on the service life, and has a great energy consumption, which affects the economy. SUMMARY

[0004] The present application at least partly solves the problem of long-term high-load operation of the air conditioner to remove formaldehyde in the related art.

[0005] Therefore, the present application aims to provide an air conditioner that adjusts the temperature in the room according to the temperature outside, and reasonably adjusts the speed of the fresh air fan according to the concentration of formaldehyde in the room to reduce energy consumption.

[0006] To achieve the above purpose, the present application provides an air conditioner, comprising:

[0007] An indoor unit is provided with an air conditioner air outlet and a fresh air outlet;

[0008] An air conditioner fan is arranged in the indoor unit, and the air conditioner fan is used to deliver air conditioner air to the room through the air conditioner air outlet;

[0009] an indoor heat exchanger arranged in the indoor unit, and performing heat exchange between refrigerant flowing in the indoor heat exchanger and air to form a heating cycle or a cooling cycle to increase or decrease the temperature of air conditioning air output to the indoor;

[0010] a fresh air fan arranged in the indoor unit, and used to deliver outdoor fresh air to the indoor through a fresh air outlet to discharge indoor air to the outdoor;

[0011] an indoor temperature sensor used to detect the indoor temperature;

[0012] an aldehyde removal component arranged in the indoor unit, and used to adsorb formaldehyde in the air conditioning air;

[0013] an outdoor unit arranged outdoors;

[0014] a formaldehyde sensor used to detect the concentration of indoor formaldehyde;

[0015] an outdoor temperature sensor arranged in the outdoor unit and used to detect the outdoor temperature;

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

[0017] when the outdoor temperature is above a second preset outdoor temperature, the controller controls the indoor heat exchanger to perform the heating cycle to make the indoor temperature reach a second set temperature; the fresh air fan operates to discharge indoor air containing formaldehyde to the outdoor, the formaldehyde sensor detects the content of indoor formaldehyde, the higher the content of indoor formaldehyde, the faster the speed of the fresh air fan, and the speed of the fresh air fan is adjusted according to the concentration of indoor formaldehyde to reduce energy consumption.

[0018] In some embodiments of the present application, when the outdoor temperature reaches a first preset outdoor temperature and is below the second preset outdoor temperature, the controller controls the indoor heat exchanger to perform the heating cycle to make the indoor temperature reach a first set temperature, so that the formaldehyde is precipitated at a first speed, and the indoor and outdoor temperature difference is reduced to reduce energy consumption; the air conditioning fan sucks indoor air and adsorbs formaldehyde in the air conditioning air through the formaldehyde removal component, and then outputs the air conditioning air to the indoor;

[0019] In some embodiments of the present application, when the fresh air fan operates to discharge indoor air containing formaldehyde to the outdoor, the speed of the fresh air fan is the fresh air speed level multiplied by the concentration of formaldehyde.

[0020] In some embodiments of the present application, when the calculated speed of the fresh air fan is lower than 200 rpm, the fresh air fan operates at 200 rpm; and when the calculated speed of the fresh air fan is higher than 1200 rpm, the fresh air fan operates at 1200 rpm.

[0021] In some embodiments of the present application, a compressor is further arranged in the outdoor unit, which changes the frequency to increase or decrease the flow of refrigerant in the indoor heat exchanger, so as to change the temperature of the air conditioner air;

[0022] When the air conditioner fan sucks indoor air and re-outputs the air conditioner air to the indoor after adsorbing formaldehyde in the air conditioner air through the formaldehyde removal element, the controller controls the frequency of the compressor according to the current energy-saving level, adjusts the rotating speed of the air conditioner fan according to the energy-saving level to reduce the energy consumption, and the greater the energy-saving level, the lower the frequency of the compressor and the lower the energy consumption.

[0023] In some embodiments of the present application, the energy-saving levels include a first energy-saving level, a second energy-saving level and a third energy-saving level.

[0024] In some embodiments of the present application, further comprising:

[0025] 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 wind direction of the air conditioner air passing through the air conditioner air outlet;

[0026] A driving element is used to drive the deflector to turn over;

[0027] When the outdoor temperature reaches a first preset outdoor temperature, the driving element drives the deflector to turn over reciprocally 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.

[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 a 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, when the air conditioner fan sucks indoor air and re-outputs the air conditioner air to the indoor after adsorbing formaldehyde in the air conditioner air through the formaldehyde removal element, the higher the indoor temperature, the greater the power of the air conditioner fan.

[0031] 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 a standby state.

[0032] In some embodiments of the present application, the first set temperature is the outdoor temperature plus a first increment temperature, and the first increment temperature is 5-10℃; the second set temperature is the outdoor temperature plus a second increment temperature, and the second increment temperature is 5-15℃.

[0033] 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 the attendant drawings or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the overall structure of an air conditioner according to an embodiment of the present application;

[0035] Figure 2 is a schematic diagram of the overall structure of an air conditioner according to an embodiment of the present application;

[0036] Figure 3 is a front view of an air conditioner according to an embodiment of the present application;

[0037] Figure 4 is a schematic diagram of the overall structure of an air conditioner according to an embodiment of the present application;

[0038] Figure 5 is Figure 4 is an enlarged schematic diagram of part A in FIG. 8;

[0039] Figure 6 is a flow chart of the operation of the formaldehyde removal mode according to an embodiment of the present application;

[0040] Figure 7 is a flow chart of the operation of the formaldehyde removal mode according to an embodiment of the present application;

[0041] Figure 8 is a flow chart of the operation of the formaldehyde removal mode according to an embodiment of the present application;

[0042] Figure 9 is a flow chart of the operation of the formaldehyde removal mode according to an embodiment of the present application;

[0043] Figure 10 is a graph of the relationship between the fresh air fan and the indoor formaldehyde concentration according to an embodiment of the present application.

[0044] In the above figures: 100, indoor unit; 200, air conditioner air outlet; 300, fresh air outlet; 400, air deflector. DETAILED DESCRIPTION

[0045] In the description of the application, it is necessary to understand 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, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply 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 a limitation of the application.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection or communication with each other; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0048] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does 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 any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0049] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0050] In this application, the air conditioner performs a refrigeration cycle in its indoor unit using a compressor, condenser, expansion valve, and indoor heat exchanger. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, supplying refrigerant to conditioned and heat-exchanged air. The compressor compresses the refrigerant gas at a low temperature and low pressure, discharging it at a high temperature and high pressure. 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 high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The indoor heat exchanger evaporates the refrigerant that has expanded in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The indoor heat exchanger achieves a cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner's indoor unit can regulate the temperature of the indoor space. The outdoor unit of an air conditioner indoor unit refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner indoor unit includes an indoor heat exchanger, and an expansion valve can be provided in either the indoor or outdoor unit. The indoor and outdoor heat exchangers function as either condensers or indoor heat exchangers. When the indoor heat exchanger functions as a condenser, the air conditioner indoor unit acts as a heater in heating mode; when it functions as an indoor heat exchanger, the air conditioner indoor unit acts as a cooler in cooling mode.

[0051] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0052] As attached Figures 1 to 5 As shown, in one illustrative embodiment of the air conditioner of the present invention, the air conditioner includes:

[0053] The indoor unit 100, an air conditioner fan, an indoor heat exchanger, a fresh air fan, an indoor temperature sensor, an aldehyde removal component, an outdoor unit, a formaldehyde sensor, an outdoor temperature sensor, and a controller, wherein the indoor unit 100 is a floor type or a wall type and is arranged in a room, 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 at intervals. The air conditioner fan is arranged in the indoor unit 100, and the air conditioner fan is used to deliver air conditioner air to the room 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 air to the room 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 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 room; the indoor heat exchanger is arranged on 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 room to change the temperature in the room. The fresh air fan is arranged in the indoor unit 100, and the fresh air fan is used to deliver outdoor fresh air to the room through the fresh air outlet 300 to discharge indoor air to the outside; 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 of the fresh air duct is in communication with the outside. The fresh air fan is used to deliver outdoor fresh air to the room through the fresh air duct and the fresh air outlet 300 to discharge indoor air to the outside. The indoor temperature sensor is arranged in the indoor unit 100 and is used to detect the indoor temperature. The aldehyde removal component is arranged in the indoor unit 100 and is arranged in the air conditioner air duct, and the aldehyde removal component is used to adsorb 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 component and then output to the room. The outdoor unit is arranged outdoors, the outdoor temperature sensor is arranged in the outdoor unit, and the outdoor temperature sensor is used to detect the outdoor temperature. The formaldehyde sensor is arranged indoors and is used to detect the concentration of indoor formaldehyde.

[0054] Please refer to Figure 6 and Figure 10, the controller is configured to: turn on the air conditioner (step S1), enter step S2, the air conditioner runs the formaldehyde removal mode (step S2), enter step S3, the indoor temperature sensor detects the outdoor temperature; judge whether the current outdoor temperature reaches the first preset outdoor temperature (step S4). Whether the current outdoor temperature reaches the first preset outdoor temperature, the current outdoor temperature reaches the first preset outdoor temperature, enter step S5. Judge whether the outdoor temperature reaches the second preset outdoor temperature (step S6), when the outdoor temperature is below the second preset outdoor temperature, enter steps S7 and S8. When the outdoor temperature is above the second preset outdoor temperature, enter steps S9 and S10, the controller controls the indoor heat exchanger to perform the heating cycle to make the indoor temperature reach the second set temperature (step S9); the fresh air fan runs to discharge the indoor air with formaldehyde to the outdoor (step S10), the formaldehyde sensor detects the indoor formaldehyde content, the higher the indoor formaldehyde content, the faster the speed of the fresh air fan, the speed of the fresh air fan is adjusted according to the indoor formaldehyde concentration to reduce the energy consumption. And the higher the concentration of formaldehyde, the faster the speed required to discharge formaldehyde.

[0055] At present, when the house is decorated or renovated, there are a lot of formaldehyde in the indoor furniture and board affecting human health. When the existing air conditioner discharges indoor formaldehyde, it usually uses air conditioner to heat indoor and discharges or active carbon adsorbs formaldehyde. However, in this way, in order to ensure that the indoor temperature can be heated enough, the highest set temperature is used to heat the indoor, which has huge energy consumption and poor economy. The air conditioner of the scheme uses outdoor temperature sensor to detect outdoor temperature, when the outdoor temperature is above the second preset outdoor temperature, the controller controls the indoor heat exchanger to perform the heating cycle, and adjusts the power of the compressor according to the current energy saving level of the air conditioner, so as to make the indoor temperature reach the second set temperature. According to the outdoor temperature, the indoor temperature is adjusted to avoid the compressor directly entering high load operation, saving energy. Reduce the indoor and outdoor temperature difference to reduce energy consumption; the formaldehyde sensor detects the concentration of indoor formaldehyde, the fresh air fan is started, and the speed of the fresh air fan is adjusted according to the formaldehyde concentration, so that the indoor air with formaldehyde is output to the outdoor at a suitable speed, which maximizes the energy saving while completing the formaldehyde removal work.

[0056] Please refer to Figures 6 to 9In 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 (step S9). Wherein, the second increment temperature is greater than or equal to 5℃ and less than or equal to 15℃. It is worth noting that in order to avoid the second set temperature being too high to cause fire and other dangers, the second set temperature is not more than 50℃. That is, when the outdoor temperature plus the second increment temperature exceeds 50℃, the second set temperature is 50℃. 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 second increment temperature is 10℃, and the second energy saving level is taken as an example, the first set temperature is 25℃+10℃ / 2=30℃. The power of the compressor is controlled by the energy saving level to save energy consumption.

[0057] Please refer to Figures 6 to 9 In some embodiments, when the fresh air fan runs to exhaust indoor air containing formaldehyde to the outside, the speed of the fresh air fan is the fresh air speed level multiplied by the formaldehyde concentration (step S10). Wherein, the fresh air speed level is greater than or equal to 40 and less than or equal to 2500, and the fresh air speed level is determined according to the actual situation. When it is necessary to quickly remove formaldehyde, the fresh air speed level is selected as 2500, and when it is necessary to remove formaldehyde slowly and for a long time, the fresh air speed level is selected as 40. Taking the formaldehyde concentration as 20mg / m³ and the fresh air speed level as 80 as an example, the fresh air speed is 20x40=800rpm.

[0058] In some embodiments, when the calculated speed of the fresh air fan is lower than 200rpm, it runs at 200rpm; when the calculated speed of the fresh air fan is higher than 1200rpm, it runs at 1200rpm. Therefore, when the calculated speed of the fresh air fan is less than 200rpm, it runs at 200rpm; when the calculated speed of the fresh air fan is greater than 1200rpm, it runs at 1200rpm. This scheme adjusts the speed of the fresh air fan according to the demand, while ensuring the effect of removing formaldehyde, it reduces energy consumption.

[0059] Please refer to Figures 6 to 9 In some embodiments, when the outdoor temperature does not reach the first preset outdoor temperature, the controller controls the air conditioner fan to enter the standby state. Because the indoor temperature is inevitably proportional to the outdoor temperature, therefore, when the outdoor temperature is low, the indoor temperature will also be low, which is not conducive to the release of formaldehyde in furniture or board. And when heating the indoor, the compressor needs to run at high power to raise the indoor temperature as high as possible, so a large amount of energy will be consumed. 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.

[0060] In some embodiments, the compressor is arranged in the outdoor unit, and the compressor is connected with the indoor heat exchanger. The compressor changes the frequency to increase or decrease the flow of refrigerant in the indoor heat exchanger, so as to change the temperature of the air conditioner air. The compressor changes the frequency to increase or decrease the flow of refrigerant in the indoor heat exchanger, so as to change the temperature of the air conditioner air.

[0061] In some embodiments, the first preset outdoor temperature can be selected according to the application scene, 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.

[0062] 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℃.

[0063] In some embodiments, the second set temperature is greater than or equal to 20℃ and less than or equal to 30℃.

[0064] Please refer to Figures 6 to 9 In some embodiments, when the air conditioner fan inhales indoor air and re-outputs the indoor air to the indoor after adsorbing formaldehyde in the air conditioner air through the formaldehyde removal element; the controller controls the frequency of the compressor according to the current energy saving level, adjusts the speed of the air conditioner fan according to the energy saving level to reduce energy consumption, and the greater the energy saving level, the lower the frequency of the compressor and the lower the energy consumption.

[0065] 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 to save energy according to different energy saving levels. The energy consumption can be set according to the user's demand.

[0066] In some embodiments, the user can adjust the energy saving level of the air conditioner according to the panel or the remote controller.

[0067] Please refer to Figures 6 to 9 In some embodiments, when the outdoor temperature reaches the first preset outdoor temperature and is below the second preset outdoor temperature, step S7 is entered, the controller controls the indoor heat exchanger to perform a heating 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 (step S7). According to the temperature of the outdoor, the temperature of the indoor is adjusted to avoid the compressor directly entering high load operation, and energy is saved. The air conditioner fan inhales indoor air and re-outputs the indoor air to the indoor after adsorbing formaldehyde in the air conditioner air through the formaldehyde removal element, completes the removal of formaldehyde, reduces the content of formaldehyde in the indoor air, and reduces the energy consumption while ensuring the formaldehyde removal efficiency.

[0068] Please refer to Figures 6 to 9In 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 S7). Wherein the first increment temperature is greater than or equal to 5℃ and less than or equal to 10℃. In the calculation of 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, 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℃.

[0069] Please refer to Figure 1 , Figure 2 and Figure 8 In 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 conditioner air outlet 200, which is used to adjust the air direction of the air conditioner air passing through the air conditioner air outlet 200; the driving member is used to drive the deflector 400 to flip; when the outdoor temperature reaches the first preset outdoor temperature, step S5 is entered, and the driving member is controlled to drive the deflector 400 to reciprocate to make the air conditioner air passing through the air conditioner air outlet 200 reciprocate to sweep the air (step S5), so as to accelerate the indoor air flow to accelerate the rate of formaldehyde release.

[0070] 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 reciprocate to realize the reciprocating motion of the deflector 400, so that the air conditioner air guided by the deflector 400 blows in the room to accelerate the air flow speed around the furniture or the plate to accelerate the speed of formaldehyde release from the clamp or the plate.

[0071] Please refer to Figures 6 to 9 In some embodiments, a humidifier is arranged in the indoor unit 100, which is used to improve the indoor humidity to accelerate the speed of formaldehyde release; when the outdoor temperature reaches the first preset outdoor temperature, the humidifier operates to improve the indoor humidity (step S5), so as to improve the release rate of formaldehyde. The higher the humidity of the environment where formaldehyde is located, the higher the release rate of formaldehyde, so when the air conditioner fan works, the controller controls the humidifier to operate to humidify the room.

[0072] In some embodiments, a water tank filled with water is arranged in the indoor unit 100, and 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.

[0073] Please refer to Figures 6 to 9In some embodiments, the indoor unit 100 is provided with a humidity detector configured to detect the indoor humidity; the controller is configured to set a regular dehumidification set value and an aldehyde-removing dehumidification set value, the aldehyde-removing dehumidification set value being greater than the regular dehumidification set value; when the air conditioner enters the aldehyde-removing mode, the humidity detector detects the indoor humidity; when the indoor humidity is greater than the aldehyde-removing dehumidification set value, the dehumidification mode is entered. After entering the aldehyde-removing mode, the aldehyde-removing dehumidification set value replaces the regular dehumidification set value, so that even if the indoor humidity increases, the air conditioner will not enter the dehumidification mode, and the indoor humidity can be ensured to rise all the time to increase the release rate of the indoor humidity.

[0074] 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% and 99% to as high as possible to increase the indoor humidity and the release rate of the formaldehyde.

[0075] Please refer to Figure 8 In some embodiments, 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 turned off. 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 constantly. 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 turned off, but within a few seconds after the humidifier is turned off, the indoor humidity is lower than 90%, at which time the humidifier is turned on to humidify the indoor, and within a few seconds after the humidifier is turned on, the indoor humidity reaches 90% again, the humidifier is controlled to be turned off, and the above actions are repeated. Therefore, in order to avoid the frequent start and stop of the humidifier, 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 turned off and stops working.

[0076] In some embodiments, when the air conditioner fan sucks the indoor air and outputs the air to the indoor after the formaldehyde in the air is adsorbed by the formaldehyde-removing component (step S8), the higher the indoor temperature, the greater the power of the air conditioner fan. The higher the indoor temperature, the more formaldehyde in the air, so the air conditioner fan needs to have a larger air volume to ensure that the formaldehyde can be adsorbed by the formaldehyde-removing component.

[0077] In some embodiments, when the air conditioner fan sucks indoor air and re-outputs the air conditioner wind to the indoor after adsorbing formaldehyde in the air conditioner wind through the formaldehyde removal element, the rotation speed of the air conditioner fan is the air conditioner rotation speed level multiplied by the indoor temperature divided by the energy saving level. Wherein, the air conditioner rotation speed level is greater than or equal to 10 and less than or equal to 40, and the air conditioner rotation speed level is determined according to the actual situation.

[0078] Please refer to Figures 6 to 9 In some embodiments, when the air conditioner fan sucks indoor air and re-outputs the air conditioner wind to the indoor after adsorbing formaldehyde in the air conditioner wind through 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 (step S8). 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 the minimum of 200rpm and the maximum of 1200rpm. Therefore, when the calculated rotation speed of the air conditioner fan is less than 200rpm, it runs at 200rpm; when the calculated rotation speed of the air conditioner fan is greater than 1200rpm, it runs at 1200rpm. This scheme adjusts the rotation speed of the air conditioner fan according to the demand, while ensuring the formaldehyde removal effect, it reduces the energy consumption.

[0079] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments, the indoor unit 100 is vertical, the length direction of the indoor unit 100 is vertically arranged on the ground, the new air outlet 300 and the air conditioner outlet 200 are both provided with two, the two new air outlets 300 are respectively arranged on the two sides in front of the indoor unit 100, and the two air conditioner outlets 200 are respectively arranged on the two sides in front of the indoor unit 100. The air conditioner outlet 200 and the new air outlet 300 are correspondingly arranged and spaced. The air deflector 400 and the driving element are both provided with two groups, the air deflector 400 and the driving element are arranged on the two sides of the shell and correspond to the air conditioner outlet 200. The driving element is arranged inside the shell, and the output shaft of the driving element is connected with the air deflector 400 through the shell. The length direction of the air deflector 400 is arranged along the length direction of the indoor unit 100, and the two ends of the air deflector 400 are rotatably connected with the indoor unit 100. The driving element is started to drive the air deflector 400 to overturn.

[0080] In some embodiments, the air deflector 400 can completely cover the corresponding air conditioner outlet 200, so as to avoid that when the air conditioner is closed, dust enters the air conditioner fan through the air conditioner outlet 200 to affect the service life of the air conditioner fan.

[0081] Please refer to Figure 1 , Figure 2 and Figure 3In some embodiments, the air conditioner outlet 200 is rectangular, and the air conditioner outlet 200 is longitudinally arranged, and an air conditioner grille is arranged at the air conditioner outlet 200. The air conditioner grille comprises a mounting frame arranged at the air conditioner outlet 200 and a plurality of longitudinal grilles. The longitudinal grilles are arranged in the mounting frame in a spaced manner, and the longitudinal grilles are arranged along the width direction of the mounting frame, and the top end and the bottom end of the longitudinal grilles are connected to the mounting frame. The air conditioner grille can prevent foreign matters from entering the air conditioner outlet 200 to damage the air conditioner fan.

[0082] In some embodiments, the air conditioner grille further comprises a plurality of transverse grilles, and the two ends of the transverse grilles are connected to the two inner side walls of the mounting frame in the width direction. The transverse grilles are arranged in the length direction of the mounting frame in a spaced manner, and the transverse grilles and the longitudinal grilles are used to prevent external structures from entering the air conditioner outlet 200.

[0083] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and are not to be construed as limiting the present application, and those of ordinary skill 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 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 conditioning 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. Indoor temperature sensor, used to detect indoor temperature; A formaldehyde removal component is installed inside the indoor unit and is used to adsorb formaldehyde in the air conditioning air. Outdoor unit, wherein the outdoor unit is installed outdoors; Formaldehyde sensor, used to detect the concentration of formaldehyde in indoor 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 or exceeds a second preset outdoor temperature, the controller controls the indoor heat exchanger to perform heating circulation to bring the indoor temperature to the second set temperature; the fresh air fan operates to exhaust indoor air containing formaldehyde to the outside; the formaldehyde sensor detects the indoor formaldehyde content; the higher the indoor formaldehyde content, the faster the speed of the fresh air fan; and the speed of the fresh air fan is adjusted according to the indoor formaldehyde concentration. 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 make the indoor temperature reach 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 first set temperature is the outdoor temperature plus a first incremental temperature, where the first incremental temperature is 5℃~10℃; the second set temperature is the outdoor temperature plus a second incremental temperature, where the second incremental temperature is 5℃~15℃.

2. The air conditioner according to claim 1, characterized in that, When the fresh air fan is operated to exhaust indoor air containing formaldehyde to the outside, the speed of the fresh air fan is the fresh air speed rating multiplied by the formaldehyde concentration.

3. The air conditioner according to claim 1, characterized in that, When the calculated speed of the fresh air fan is below 200 rpm, it will run at 200 rpm; when the calculated speed of the fresh air fan is above 1200 rpm, it will run at 1200 rpm.

4. The air conditioner according to claim 1, characterized in that, The outdoor unit also contains a compressor, which changes its frequency to increase or decrease the flow of refrigerant in the indoor heat exchanger in order to change the temperature of the air conditioning air. When the air conditioner fan draws in indoor air and adsorbs formaldehyde from the air conditioner air through the formaldehyde removal component, it outputs the air back into the room; the controller controls the frequency of the compressor according to the current energy saving level, and adjusts the speed of the air conditioner fan according to the energy saving level. The higher the energy saving level, the lower the frequency of the compressor.

5. The air conditioner according to claim 4, characterized in that, The energy-saving levels include the first energy-saving level, the second energy-saving level, and the third energy-saving level.

6. 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.

7. 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.

8. The air conditioner according to claim 1, characterized in that, When the air conditioner fan draws in indoor air and adsorbs formaldehyde from the air conditioner air through the formaldehyde removal component before re-exporting it indoors, the higher the indoor temperature, the greater the power of the air conditioner fan.

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