Up-down air outlet air conditioner and control method thereof

Abstract

The invention provides an up-down air outlet air conditioner and a control method thereof. The up-down air outlet air conditioner comprises a shell, a first air inlet, a first air outlet, a second air inlet and a second air outlet. The indoor heat exchanger is arranged in the shell and divides the space in the shell into an upper space and a lower space; the first air duct is arranged in the upper space and communicates with the second upper air opening; the second air duct is arranged in the lower space and communicates with the first lower air opening; the first cross-flow fan blade is arranged in the first air duct; the second cross-flow fan blade is arranged in the second air duct; the first upper air opening and the first air channel can communicate with the second air channel, and the second air channel and the second lower air opening can communicate with the first air channel. According to the up-and-down air outlet air conditioner and the control method thereof, the requirements that cold air is not directly blown during refrigeration and hot air falls to the ground quickly during heating can be met, and too large noise cannot be generated.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to an up-and-down air-discharging air conditioner and a control method thereof. Background Art

[0002] With the development of economy and the continuous improvement of people's living standards, the pursuit of quality of life is growing, especially in terms of comfort of home environment. As a key device for regulating indoor temperature and air quality, the importance of air conditioning system is self-evident. Air conditioning not only needs to provide high efficiency in cooling and heating, but also ensure comfort and quietness during use to meet the needs of different life scenarios.

[0003] In cooling mode, household wall-mounted air conditioners often have the problem of cold air blowing directly on the human body due to the limitations of the air duct structure and air supply mode. This phenomenon not only reduces the user's comfort experience, but may also cause health problems, such as colds, muscle tension, etc. Although some air conditioner products on the market have tried to improve this situation by adjusting the angle of the air guide plate to achieve a certain degree of anti-direct blowing effect, due to the limitations of the air guide plate adjustment range and air supply mode, cold air still cannot be completely avoided from blowing directly, especially in large space environments, and it is difficult to achieve uniform cooling throughout the house.

[0004] At the same time, in order to improve the air supply effect, some air conditioners use a centrifugal fan blade design to achieve a single-blade dual-air outlet air supply mode. However, centrifugal fans will generate a lot of noise during operation, especially in high air volume mode, the noise level is significantly increased, which is a disadvantage that cannot be ignored for spaces such as bedrooms that require a quiet environment. High noise not only affects the user's sleep quality, but may also have an adverse effect on mental health. Therefore, how to reduce the noise during air conditioner operation while ensuring the air supply effect is an important technical challenge facing the industry.

[0005] In summary, current household wall-mounted air conditioners have the problem of not being able to simultaneously meet the requirements of not blowing cold air directly during cooling, and quickly dropping hot air to the ground during heating, without generating excessive noise. Summary of the invention

[0006] The main purpose of the present invention is to provide an air conditioner with up and down air outlets and a control method thereof, which can meet the requirements of not blowing cold air directly during cooling and quickly dropping hot air to the ground during heating without generating excessive noise.

[0007] In order to achieve the above object, according to one aspect of the present invention, there is provided an air conditioner with up and down air outlets, comprising:

[0008] A housing having a first upper air port, a first lower air port, a second upper air port, and a second lower air port;

[0009] The indoor heat exchanger is arranged in the shell and divides the space in the shell into an upper space and a lower space;

[0010] A first air duct is arranged in the upper space and communicated with the second upper air outlet;

[0011] A second air duct is arranged in the lower space and communicated with the first lower air outlet;

[0012] A first crossflow fan blade is arranged in the first air duct;

[0013] A second crossflow fan blade is arranged in the second air duct;

[0014] The first upper air outlet and the first air duct can both be communicated with the second air duct, and the second air duct and the second lower air outlet can both be communicated with the first air duct.

[0015] Furthermore, an upper air guide plate is provided at the second upper air outlet, and the upper air guide plate has an air guiding state in which the second upper air outlet is opened to guide the outgoing air, and a filtering state in which the second upper air outlet is closed to filter the incoming air.

[0016] Furthermore, the upper air guide plate includes a shielding portion and a filtering portion, the shielding portion has a first position covering the filtering portion and a second position giving way to the filtering portion, when the upper air guide plate is in an air guiding state, the shielding portion is located at the first position, and when the upper air guide plate is in a filtering state, the shielding portion is located at the second position.

[0017] Furthermore, the shielding part includes a roller blind, the upper air guide plate also includes a sliding track and a drum, the filtering part includes an intermediate filter screen, the roller blind can be slidably arranged in the sliding track, the first end of the roller blind is wound on the drum, and the intermediate filter screen is installed on the inner side of the sliding track.

[0018] Furthermore, the rolling curtain has two layers, and the middle filter is located between the two layers of the rolling curtain.

[0019] Furthermore, the roller is arranged at the first end of the sliding track, an elastic member is arranged at the second end of the sliding track, and the second end of the rolling curtain is connected to the elastic member.

[0020] Furthermore, a lower air guide plate is provided at the first lower air outlet.

[0021] Furthermore, the indoor heat exchanger is Z-shaped, the first crossflow fan blade is located at a first bend of the indoor heat exchanger, and the second crossflow fan blade is located at a second bend of the indoor heat exchanger.

[0022] Furthermore, when the up and down air conditioner is in the up air outlet mode, the position of the second cross-flow fan blade is locked, the first upper air outlet is closed, the second upper air outlet is opened, the first lower air outlet and the second lower air outlet are opened, and the first cross-flow fan blade is running; when the up and down air conditioner is in the down air outlet mode, the position of the first cross-flow fan blade is locked, the second lower air outlet is closed, the first lower air outlet is opened, the first upper air outlet and the second upper air outlet are opened, and the second cross-flow fan blade is running.

[0023] According to another aspect of the present invention, there is provided a control method for the above-mentioned up-and-down air conditioner, comprising:

[0024] Get the operating mode of the air conditioner;

[0025] When the air conditioner is in cooling mode, the first cross flow fan blade is controlled to operate, the second cross flow fan blade is stopped, the second upper air outlet is controlled to open, and the air outlet of the air conditioner is controlled;

[0026] When the air conditioner is in heating mode, the second cross flow blade is controlled to operate, the first cross flow blade is stopped, the first lower air outlet is controlled to open, and the air outlet of the air conditioner is controlled to be discharged downward.

[0027] Furthermore, when the air conditioner is in cooling mode, the first cross flow blade is controlled to operate, the second cross flow blade is stopped, the second upper air outlet is controlled to open, and the steps of controlling the air outlet of the air conditioner include:

[0028] Get the wind speed mode of the air conditioner;

[0029] When the air conditioner is at a high wind speed, the roller blind of the lower air guide plate at the first lower air outlet is controlled to open the middle filter screen;

[0030] Control the upper air guide plate at the second upper air outlet to flip and open the second upper air outlet;

[0031] Controlling the operation of the first crossflow fan blade;

[0032] Control the locking of the second crossflow fan blade;

[0033] Control the second lower air outlet to open, so that the airflow enters the first air duct from the second air duct and the second lower air outlet, and is blown out from the second upper air outlet;

[0034] When the air conditioner is at a low wind speed, the roller blind of the lower air guide plate at the first lower air outlet is controlled to cover the middle filter screen;

[0035] Control the upper air guide plate at the second upper air outlet to flip and open the second upper air outlet;

[0036] Controlling the operation of the first crossflow fan blade;

[0037] The second lower air outlet is controlled to open so that the airflow enters the first air duct from the second lower air outlet and is blown out from the second upper air outlet.

[0038] Furthermore, when the air conditioner is in a heating mode, the second crossflow blade is controlled to operate, the first crossflow blade is stopped, the first lower air outlet is controlled to open, and the steps of controlling the lower air outlet of the air conditioner include:

[0039] Get the wind speed mode of the air conditioner;

[0040] When the air conditioner is at high wind speed, the roller blind of the upper air guide plate at the second upper air outlet is controlled to open the middle filter screen;

[0041] Control the lower air guide plate at the first lower air outlet to flip and open the first lower air outlet;

[0042] Controlling the operation of the second crossflow fan blade;

[0043] Control the locking of the first crossflow fan blade;

[0044] Control the first upper air outlet to open, so that the airflow enters the second air duct from the first air duct and the first upper air outlet, and is blown out from the first lower air outlet;

[0045] When the air conditioner is at a low wind speed, the roller blind of the upper air guide plate at the second upper air outlet is controlled to cover the middle filter screen;

[0046] Control the lower air guide plate at the first lower air outlet to flip and open the first lower air outlet;

[0047] Controlling the operation of the first crossflow fan blade;

[0048] The first upper air vent is controlled to open, so that the airflow enters the second air duct from the first upper air vent and is blown out from the first lower air vent.

[0049] Applying the technical solution of the present invention, the upper and lower air-discharging air conditioner comprises: a shell having a first upper air port, a first lower air port, a second upper air port and a second lower air port; an indoor heat exchanger arranged in the shell and dividing the space in the shell into an upper space and a lower space; a first air duct arranged in the upper space and connected with the second upper air port; a second air duct arranged in the lower space and connected with the first lower air port; a first cross-flow fan blade arranged in the first air duct; a second cross-flow fan blade arranged in the second air duct; the first upper air port and the first air duct can both be connected with the second air duct, and the second air duct and the second lower air port can both be connected with the first air duct. By designing the structure in which the first upper air port and the first air duct are connected with the second air duct, and the second air duct and the second lower air port are connected with the first air duct, the air conditioner can guide the cold air from the second upper air port to the upper space of the whole house through the first cross-flow fan blade in the cooling mode, so that the cold air can be evenly distributed from the top of the room to the lower space, realizing uniform cooling of the whole house and avoiding the cold air blowing directly on the human body. In heating mode, the hot air is delivered from the first downwind port to the lower space through the second air duct by the second crossflow fan blade, so that the hot air flow is blown downward from the first downwind port at the bottom of the shell to the bottom of the room, and then rises to the whole house, realizing rising heating, ensuring that the hot air can be delivered close to the ground, realizing rapid heating and quickly raising the indoor temperature. The above-mentioned cooling air supply and heating air supply are realized by the first crossflow fan blade and the second crossflow fan blade. Compared with the traditional centrifugal fan blade design, when the crossflow fan blade operates under the same air volume conditions, due to its axial air supply characteristics, it reduces the air flow vortex and effectively reduces the operating noise, especially when used in spaces such as bedrooms that require a quiet environment, it can provide a quieter air supply experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0051] Figure 1 A schematic diagram showing the structure of the upper and lower air-discharging air conditioner in the embodiment of the present invention in the off state;

[0052] Figure 2 A schematic diagram showing the structure of each air outlet of an air conditioner with upper and lower air outlets according to an embodiment of the present invention;

[0053] Figure 3 It shows a schematic structural diagram of a top-bottom air-conditioner in a cooling top-air-discharge mode according to an embodiment of the present invention;

[0054] Figure 4 It shows a schematic structural diagram of a top-bottom air-discharging air conditioner in a heating bottom air-discharging mode according to an embodiment of the present invention;

[0055] Figure 5A schematic structural diagram showing an upper air guide plate of an air conditioner with upper and lower air outlets according to an embodiment of the present invention; and

[0056] Figure 6 A flow chart of a control method for an air conditioner with up and down air outlets according to an embodiment of the present invention is shown.

[0057] The above drawings include the following reference numerals:

[0058] 1. First air duct; 2. Upper air guide plate; 3. First crossflow fan blade; 4. Front water channel; 5. Lower filter; 6. Lower baffle; 7. Lower air guide plate; 8. Second air duct; 9. Second crossflow fan blade; 10. Rear water channel; 11. Indoor heat exchanger; 12. Upper filter; 13. Upper baffle; 14. Drum; 15. Sliding track; 16. Elastic member; 17. Middle filter; 18. Roller curtain; 19. First upper air outlet; 20. Second upper air outlet; 21. First lower air outlet; 22. Second lower air outlet; 100. Shell. DETAILED DESCRIPTION

[0059] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0060] like Figures 1 to 5 As shown, according to an embodiment of the present invention, the up and down air-discharging air conditioner includes: a shell 100, having a first upper air port 19, a first lower air port 21, a second upper air port 20 and a second lower air port 22; an indoor heat exchanger 11, which is arranged in the shell 100 and divides the space in the shell 100 into an upper space and a lower space; a first air duct 1, which is arranged in the upper space and communicated with the second upper air port 20; a second air duct 8, which is arranged in the lower space and communicated with the first lower air port 21; a first crossflow fan blade 3, which is arranged in the first air duct 1; a second crossflow fan blade 9, which is arranged in the second air duct 8; the first upper air port 19 and the first air duct 1 can both be communicated with the second air duct 8, and the second air duct 8 and the second lower air port 22 can both be communicated with the first air duct 1.

[0061] By designing the structure that the first upper air vent 19 and the first air duct 1 are connected to the second air duct 8, and the second air duct 8 and the second lower air vent 22 are connected to the first air duct 1, the air conditioner can guide the cold air from the second upper air vent 20 to the upper space of the whole house through the first cross-flow fan blade 3 through the first air duct 1, so that the cold air can be evenly distributed from the top of the room to the lower space, achieving uniform cooling of the whole house and avoiding the cold air blowing directly on the human body. In the heating mode, the hot air is sent from the first lower air vent 21 to the lower space through the second air duct 8 through the second cross-flow fan blade 9, so that the hot air flow is blown downward from the first lower air vent 21 at the bottom of the shell to the bottom of the room, and then rises to the whole house, realizing rising heating, ensuring that the hot air can be sent close to the ground, achieving rapid heating, and quickly raising the indoor temperature.

[0062] The above-mentioned air supply is all achieved through cross-flow fan blades. Compared with the traditional centrifugal fan blade design, when the cross-flow fan blades operate under the same air volume conditions, due to their axial air supply characteristics, they reduce the air flow vortex and effectively reduce the operating noise. Especially when used in spaces that require a quiet environment, such as bedrooms, it can provide a quieter air supply experience.

[0063] By controlling the operating status of the first cross-flow fan blades 3 and the second cross-flow fan blades 9, as well as the opening and closing of the first upper air outlet 19, the first lower air outlet 21, the second upper air outlet 20 and the second lower air outlet 22, the air conditioner can intelligently switch the air outlet mode between the cooling and heating modes, and provide a variety of air supply modes such as non-direct blowing of cold air, rapid drop of hot air to the ground, and rapid cooling or heating, to meet the different needs and preferences of users.

[0064] The above technical solution can not only solve the problem of direct cold air blowing and hot air being difficult to cover the whole house during heating, but also greatly improve the comfort and user satisfaction of the air conditioner by reducing noise and improving air supply uniformity.

[0065] In one embodiment, an upper air guide plate 2 is provided at the second upper air outlet 20, and the upper air guide plate 2 has an air guiding state in which the second upper air outlet 20 is opened to guide the outgoing air, and a filtering state in which the second upper air outlet 20 is closed to filter the incoming air.

[0066] In the air guiding state, the upper air guide plate 2 can accurately adjust the air outlet angle according to the operating mode of the air conditioner and the user's settings, thereby effectively controlling the flow direction of the cold air. In the cooling mode, the upper air guide plate 2 can guide the cold air to avoid blowing directly toward the human body, thereby achieving a more uniform and comfortable cold air distribution.

[0067] In the filtering state, the upper air guide plate 2 acts as a filter for the air inlet. While increasing the air intake, it can effectively block dust, impurities, etc. entering from the second upper air outlet 20, keep the indoor air clean, reduce dust accumulation inside the air conditioner, extend the service life of the equipment, and reduce the problems of reduced air volume and decreased efficiency caused by dust blockage.

[0068] By flexibly switching the air guiding and filtering states through the upper air guide plate 2, the state of the entire upper air guide plate 2 can be adjusted as needed to meet different working requirements. Different working modes can be switched, so that the air conditioner can adjust the air supply mode according to actual needs while ensuring air cleanliness, avoiding the phenomenon of direct blowing of cold air, and greatly improving the energy efficiency of the air conditioner and the user's comfort experience.

[0069] In one embodiment, the upper air guide plate 2 includes a shielding portion and a filtering portion, the shielding portion having a first position covering the filtering portion and a second position giving way to the filtering portion, when the upper air guide plate 2 is in an air guiding state, the shielding portion is located at the first position, and when the upper air guide plate 2 is in a filtering state, the shielding portion is located at the second position.

[0070] Through the combination of the shielding part and the filtering part, the upper air guide plate 2 can flexibly switch functions between the cooling and heating modes. In the wind-guiding state where the shielding part is in the first position, the shielding part covers the filtering part, so that the upper air guide plate 2 can be used as a guide device to accurately control the direction of the airflow blown out from the second upper air outlet 20 to prevent the cold air from blowing directly on the human body; and in the filtering state where the shielding part is in the second position, the shielding part can give way to the filtering part, so that the filtering part is exposed to the second upper air outlet 20. At this time, the upper air guide plate 2 is transformed into a filter screen of the air inlet, blocking dust and impurities from entering the interior of the air conditioner, keeping the air clean, and reducing dust accumulation in the internal components, thereby improving the heat exchange efficiency and extending the life of the equipment.

[0071] The dynamic switching between the shielding part and the filter part enables the air conditioner to perform at its best in different operating modes. For example, in the cooling high air volume mode, the shielding part is in the first position to ensure that the airflow direction is accurately controlled to avoid discomfort caused by direct cold air; while in the heating mode or when high air volume cooling is required, the shielding part moves to the second position and the filter part works to ensure the cleanliness of the incoming air and avoid the reduction of air volume and air conditioning efficiency caused by dust blockage. The built-in filtering function of the filter part reduces the frequency of users regularly replacing or cleaning the external filter, simplifies the maintenance process, and reduces maintenance costs.

[0072] In one embodiment, the shielding portion includes a roller blind 18, the upper air guide plate 2 also includes a sliding track 15 and a drum 14, the filtering portion includes an intermediate filter screen 17, the roller blind 18 can be slidably arranged in the sliding track 15, the first end of the roller blind 18 is wound on the drum 14, and the intermediate filter screen 17 is installed on the inner side of the sliding track 15.

[0073] The rolling curtain 18 can slide flexibly in the sliding track 15, and the roller 14 is driven by the motor to realize the automatic retraction and extension of the rolling curtain 18. In the wind-guiding state, the rolling curtain 18 is in the first position, covering the middle filter 17 of the filter part, forming a complete wind guide plate structure, effectively controlling the air outlet direction of the second upper air outlet 20, and preventing the cold wind from blowing directly on the human body. The middle filter 17 is installed on the inner side of the sliding track 15. When the rolling curtain 18 moves to the second position, the middle filter 17 is completely exposed to the second upper air outlet 20. As the filter of the air inlet, it can effectively filter dust, impurities, etc. in the air, keep the air entering the air conditioner clean, reduce dust accumulation of internal components, and extend the service life and heat exchange efficiency of the equipment. The automatic operation of the rolling curtain 18 not only simplifies the user's adjustment of the air supply mode of the air conditioner, but also automatically switches the filtering and wind-guiding functions without the need for manual adjustment by the user, making the use of the air conditioner more convenient and improving the overall user experience.

[0074] The integrated design of the roller blind 18 and the intermediate filter 17 avoids the space waste and structural complexity caused by the separation of the traditional air guide plate and the filter, making the internal structure of the air conditioner more compact while maintaining high efficiency and versatility.

[0075] Since the middle filter 17 is directly installed on the inner side of the sliding track 15, when the filter needs to be cleaned or replaced, the user or maintenance personnel can directly contact and operate the middle filter 17 by simply operating the roller shutter 18, which greatly simplifies the maintenance process and reduces the difficulty and cost of maintenance.

[0076] In one embodiment, the rolling curtain 18 has two layers, and the middle filter 17 is located between the two layers of the rolling curtain 18 .

[0077] The roller shutter 18 is designed as two layers, and an intermediate filter 17 is installed between the two layers, which effectively enhances the filtering effect, while ensuring the stability and durability of the air guide plate, providing a multifunctional upper air guide plate system that can accurately control the direction of airflow and efficiently filter the air, and also makes the structural balance of the roller shutter 18 better.

[0078] In one embodiment, the roller 14 is disposed at a first end of a sliding track 15 , an elastic member 16 is disposed at a second end of the sliding track 15 , and a second end of the rolling curtain 18 is connected to the elastic member 16 .

[0079] The elastic member 16 can provide a restoring force, so that when the rolling curtain 18 is rolled up by the roller 14, it can maintain a stretched state, which is convenient for rolling up the rolling curtain 18. When the rolling curtain 18 needs to be unfolded, the restoring force of the elastic member 16 helps the rolling curtain 18 to move quickly and smoothly along the sliding track 15, realizing the automatic unfolding function. At the same time, it can be stably maintained in the unfolded state under the pulling force of the elastic member 16, avoiding the drooping or deformation of the rolling curtain due to gravity or wind, simplifying the operation process, and improving the user experience. The elastic member 16 is, for example, a tension spring or a coil spring.

[0080] In one embodiment, two traction ropes are connected to one end of the rolling curtain 18 close to the elastic member 16 . The two traction ropes are connected to the elastic member 16 and are used to pull the rolling curtain 18 to reset.

[0081] In one embodiment, a mounting frame is provided at one end of the sliding track 15 away from the roller 14 , and the elastic member 16 is provided on the mounting frame.

[0082] In one embodiment, a lower air guide plate 7 is provided at the first lower air outlet 21. The structure and function of the lower air guide plate 7 are similar to those of the upper air guide plate 2, and will not be described in detail here.

[0083] In one embodiment, an upper baffle 13 is provided at the first upper air outlet 19, an upper air guide plate 2 is provided at the second upper air outlet 20, a lower air guide plate 7 is provided at the first lower air outlet 21, and a lower baffle 6 is provided at the second lower air outlet 22. In this embodiment, two air outlets are provided at the upper and lower parts, respectively, which can increase the air volume while shortening the length of the baffle, thereby maximizing the air intake and avoiding the baffle from extending too long, so that the air conditioner can maintain a compact structure, and can also avoid the problem of the baffle extending too long to block the wind, thereby ensuring the flow effect of the airflow.

[0084] The present invention adopts a double cross-flow fan blade structure with upper and lower air outlets, and the demand for air intake volume increases. In the cooling upper air outlet mode, when a large air volume is pursued, the first lower air outlet 21 needs to be opened, and the first lower air outlet 21 is the air outlet in the heating mode. In the heating mode, the first lower air outlet 21 cannot be blocked, so a conventional filter cannot be set to filter dust; in the heating lower air outlet mode, when a large air volume is pursued, the second upper air outlet 20 needs to be opened, and the second upper air outlet 20 is the air outlet in the cooling mode. In the cooling mode, the second upper air outlet 20 cannot be blocked, so a conventional filter cannot be set to filter dust.

[0085] Through the above-mentioned air guide plate structure of the present application, the air guide plate structure can be adjusted as needed, so that the air guide plate can achieve both a good air guiding effect and a dust filtering function, thereby effectively solving the above-mentioned problem.

[0086] In one embodiment, the indoor heat exchanger 11 is Z-shaped, the first crossflow blades 3 are located at a first bend of the indoor heat exchanger 11 , and the second crossflow blades 9 are located at a second bend of the indoor heat exchanger 11 .

[0087] The Z-shaped heat exchanger design increases the contact area between the air and the heat exchanger, so that the air has a longer path to contact the cooling or heating medium when passing through the heat exchanger, thereby improving the heat exchange efficiency. The first crossflow fan blade 3 and the second crossflow fan blade 9 are respectively located at the bend of the indoor heat exchanger, which can effectively guide the airflow and ensure that the air flows evenly through the entire surface of the heat exchanger, further enhancing the heat exchange effect. At the same time, the first crossflow fan blade 3 and the second crossflow fan blade 9 are located at the bend of the heat exchanger, which can make full use of the space formed by the bend of the indoor heat exchanger, so that the space is more fully utilized, the structure of the air conditioner is more compact, and the occupied volume is smaller. The Z-shaped design makes full use of the internal space of the air conditioner, making the layout of the heat exchanger and the crossflow fan blades more compact, reducing the overall volume of the air conditioner, and helping to save installation space for users.

[0088] In one embodiment, when the up and down air conditioner is in the up air outlet mode, the second cross flow fan blade 9 is locked in position, the first upper air outlet 19 is closed, the second upper air outlet 20 is opened, the first lower air outlet 21 and the second lower air outlet 22 are opened, and the first cross flow fan blade 3 is in operation; when the up and down air conditioner is in the down air outlet mode, the first cross flow fan blade 3 is locked in position, the second lower air outlet 22 is closed, the first lower air outlet 21 is opened, the first upper air outlet 19 and the second upper air outlet 20 are opened, and the second cross flow fan blade 9 is in operation.

[0089] By precisely controlling the opening and closing of the air vents and the operation of the cross-flow blades, the up-and-down air-conditioner can effectively prevent cold air from blowing directly onto the human body in the up-and-down mode, and ensure that hot air is evenly diffused along the ground in the down-and-down mode, significantly improving the comfort and efficiency of the air-conditioner's operation and meeting the needs of personalized air supply.

[0090] In one embodiment, the air conditioner with upper and lower air outlets further includes a front water channel 4 and a rear water channel 10. The front water channel 4 is arranged below the lowest position of the first end of the indoor heat exchanger 11, and is used to receive the condensed water formed at the first end of the indoor heat exchanger 11. The rear water channel 10 is arranged below the lowest position of the second end of the indoor heat exchanger 11, and is used to receive the condensed water formed at the second end of the indoor heat exchanger 11. By arranging the front water channel 4 and the rear water channel 10, the condensed water generated by the indoor heat exchanger 11 can be conveniently collected and discharged in time through the preset drainage pipeline, so as to avoid the condensed water dripping into the room and polluting the indoor environment, thereby improving the user experience.

[0091] See also Figure 6As shown, according to an embodiment of the present invention, the control method of the above-mentioned upper and lower air-outlet air conditioner includes: obtaining the operating mode of the air conditioner; when the air conditioner is in cooling mode, controlling the first crossflow fan blades 3 to operate, the second crossflow fan blades 9 to stop, controlling the second upper air vent 20 to open, and controlling the upper air outlet of the air conditioner; when the air conditioner is in heating mode, controlling the second crossflow fan blades 9 to operate, the first crossflow fan blades 3 to stop, controlling the first lower air vent 21 to open, and controlling the lower air outlet of the air conditioner.

[0092] In cooling mode, by controlling the operation of the first crossflow fan blade 3 and the opening of the second upper air vent 20, cold air can be prevented from blowing directly on the human body, providing a more comfortable cold air experience; in heating mode, the operation of the second crossflow fan blade 9 and the opening of the first lower air vent 21 can be controlled to ensure that the hot air is diffused close to the ground, so that the hot air floats up to form transpiration heating, thereby improving the heating efficiency and comfort.

[0093] This control method ensures that in cooling mode, cold air is efficiently delivered through the upper air outlet, while in heating mode, hot air is evenly distributed through the lower air outlet. This strategic air supply method optimizes the heat exchange performance of the air conditioner, speeds up the indoor temperature adjustment speed, and improves energy efficiency. Compared with centrifugal blades, crossflow blades produce less noise when in operation. By selectively starting the crossflow blades in different modes, the noise level of the air conditioner during operation can be significantly reduced while maintaining a good air supply effect.

[0094] In one embodiment, when the air conditioner is in cooling mode, the first cross flow blade 3 is controlled to operate, the second cross flow blade 9 is stopped, the second upper air outlet 20 is controlled to open, and the steps of controlling the upper air outlet of the air conditioner include:

[0095] Get the wind speed mode of the air conditioner;

[0096] When the air conditioner is at a high wind speed, the roller blind 18 of the lower air guide plate 7 at the first lower air outlet 21 is controlled to open the middle filter 17;

[0097] Control the upper air guide plate 2 at the second upper air outlet 20 to flip and open the second upper air outlet 20;

[0098] Controlling the operation of the first crossflow fan blade 3;

[0099] Controlling the second crossflow fan blade 9 to lock;

[0100] Control the second lower air outlet 22 to open, so that the airflow enters the first air duct 1 from the second air duct 8 and the second lower air outlet 22, and is blown out from the second upper air outlet 20;

[0101] When the air conditioner is at a low wind speed, the roller blind 18 of the lower air guide plate 7 at the first lower air outlet 21 is controlled to cover the middle filter 17;

[0102] Control the upper air guide plate 2 at the second upper air outlet 20 to flip and open the second upper air outlet 20;

[0103] Controlling the operation of the first crossflow fan blade 3;

[0104] The second lower air outlet 22 is controlled to open, so that the airflow enters the first air duct 1 from the second lower air outlet 22 and is blown out from the second upper air outlet 20 .

[0105] See also Figure 3 As shown, in the cooling mode with high air volume, the upper air guide plate 2 and the lower baffle 6 are opened to Figure 3 In the position shown, the roller blind 18 of the lower air guide plate 7 is opened, the second crossflow blade 9 is locked to prevent the second crossflow blade 9 from rotating and affecting the wind pressure, and the first crossflow blade 3 starts to operate. Air is sucked in by the first lower air port 21 and the second lower air port 22, and after heat exchange by the indoor heat exchanger 11, it is blown out from the top by the first crossflow blade 3 through the first air duct 1 and the upper air guide plate 2, so that the function of not blowing cold air directly is realized. This mode is suitable for environments with large air volume requirements and rapid cooling. When the air conditioner is in the cooling mode and low air volume operation, in the above-mentioned operating mode, the roller blind 18 of the lower air guide plate 7 is closed, that is, air is not introduced through the first lower air port 21, and the cooling mode is turned on. The default air conditioning cooling mode is the low air volume mode.

[0106] In one embodiment, when the air conditioner is in heating mode, the second cross flow blade 9 is controlled to operate, the first cross flow blade 3 is stopped, the first lower air outlet 21 is controlled to open, and the steps of controlling the lower air outlet of the air conditioner include:

[0107] Get the wind speed mode of the air conditioner;

[0108] When the air conditioner is at a high wind speed, the roller blind 18 of the upper air guide plate 2 at the second upper air outlet 20 is controlled to open the middle filter 17;

[0109] Control the lower air guide plate 7 at the first lower air outlet 21 to flip and open the first lower air outlet 21;

[0110] Controlling the operation of the second crossflow fan blade 9;

[0111] Controlling the first crossflow fan blade 3 to lock;

[0112] Control the first upper air vent 19 to open, so that the airflow enters the second air duct 8 from the first air duct 1 and the first upper air vent 19, and is blown out from the first lower air vent 21;

[0113] When the air conditioner is at a low wind speed, the roller blind 18 of the upper air guide plate 2 at the second upper air outlet 20 is controlled to cover the middle filter 17;

[0114] Control the lower air guide plate 7 at the first lower air outlet 21 to flip and open the first lower air outlet 21;

[0115] Controlling the operation of the first crossflow fan blade 3;

[0116] The first upper air port 19 is controlled to open, so that the airflow enters the second air duct 8 from the first upper air port 19 and is blown out from the first lower air port 21 .

[0117] Reference Figure 4 In the heating mode with high wind speed, the upper baffle 13 and the lower air guide plate 7 are opened to Figure 4 In the position shown, the roller blind 18 of the upper air guide plate 2 is opened, the first crossflow blade 3 is locked to prevent the first crossflow blade 3 from rotating and affecting the wind pressure, and the second crossflow blade 9 starts to operate. Air is sucked in by the first upper air port 19 and the second upper air port 20, and after heat exchange by the indoor heat exchanger 11, it is blown out from the bottom by the second crossflow blade 9 through the second air duct 8 and the lower air guide plate 7, thereby realizing the function of hot air carpet coverage. This mode is suitable for environments requiring large air volume and rapid heating. When in the low air volume operation state of the heating mode, in the above-mentioned operation mode, the roller blind 18 of the upper air guide plate 2 is closed, that is, the air is not introduced through the first upper air port 19, and the cooling mode is turned on. The default air conditioning heating mode is the low air volume mode.

[0118] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0119] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0120] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioner with up and down air outlets, characterized in that: include: The housing (100) has a first upper air port (19), a first lower air port (21), a second upper air port (20) and a second lower air port (22); An indoor heat exchanger (11) is disposed in the shell (100) and divides the space inside the shell (100) into an upper space and a lower space; A first air duct (1) is arranged in the upper space and communicated with the second upper air port (20); a second air duct (8), arranged in the lower space and connected to the first lower air outlet (21); A first crossflow fan blade (3) is arranged in the first air duct (1); A second crossflow fan blade (9) is arranged in the second air duct (8); The first upper air port (19) and the first air duct (1) can both be in communication with the second air duct (8), and the second air duct (8) and the second lower air port (22) can both be in communication with the first air duct (1).

2. The up-and-down air conditioner according to claim 1, characterized in that: An upper air guide plate (2) is provided at the second upper air outlet (20), and the upper air guide plate (2) has an air guiding state in which the second upper air outlet (20) is opened to guide the outgoing air, and a filtering state in which the second upper air outlet (20) is closed to filter the incoming air.

3. The up-and-down air conditioner according to claim 2, characterized in that: The upper air guide plate (2) comprises a shielding portion and a filtering portion, the shielding portion having a first position covering the filtering portion and a second position leaving the filtering portion; when the upper air guide plate (2) is in an air guiding state, the shielding portion is located in the first position; when the upper air guide plate (2) is in a filtering state, the shielding portion is located in the second position.

4. The up-and-down air conditioner according to claim 3, characterized in that: The shielding portion comprises a rolling curtain (18), the upper air guide plate (2) further comprises a sliding track (15) and a drum (14), the filtering portion comprises an intermediate filter screen (17), the rolling curtain (18) is slidably arranged in the sliding track (15), the first end of the rolling curtain (18) is wound on the drum (14), and the intermediate filter screen (17) is installed on the inner side of the sliding track (15).

5. The up-and-down air conditioner according to claim 4, characterized in that: The rolling curtain (18) has two layers, and the middle filter (17) is located between the two layers of the rolling curtain (18).

6. The up-and-down air conditioner according to claim 4, characterized in that: The roller (14) is arranged at the first end of the sliding track (15), the second end of the sliding track (15) is provided with an elastic member (16), and the second end of the rolling curtain (18) is connected to the elastic member (16).

7. The up-and-down air conditioner according to any one of claims 1 to 6, characterized in that: A lower air guide plate (7) is provided at the first lower air outlet (21).

8. The up-and-down air conditioner according to any one of claims 1 to 6, characterized in that: The indoor heat exchanger (11) is in a Z shape, the first crossflow blade (3) is located at a first bend of the indoor heat exchanger (11), and the second crossflow blade (9) is located at a second bend of the indoor heat exchanger (11).

9. The up-and-down air conditioner according to any one of claims 1 to 6, characterized in that: When the up-down air-conditioning device is in the up-down air-conditioning mode, the second cross-flow blade (9) is locked in position, the first upper air outlet (19) is closed, the second upper air outlet (20) is opened, the first lower air outlet (21) and the second lower air outlet (22) are opened, and the first cross-flow blade (3) is in operation; when the up-down air-conditioning device is in the down-down air-conditioning mode, the first cross-flow blade (3) is locked in position, the second lower air outlet (22) is closed, the first lower air outlet (21) is opened, the first upper air outlet (19) and the second upper air outlet (20) are opened, and the second cross-flow blade (9) is in operation.

10. A method for controlling a top-bottom air conditioner according to any one of claims 1 to 8, characterized in that: include: Get the operating mode of the air conditioner; When the air conditioner is in cooling mode, the first cross-flow blade (3) is controlled to operate, the second cross-flow blade (9) is stopped, the second upper air outlet (20) is controlled to open, and the air outlet of the air conditioner is controlled; When the air conditioner is in heating mode, the second cross-flow fan blade (9) is controlled to operate, the first cross-flow fan blade (3) is stopped, the first lower air outlet (21) is controlled to open, and the lower air outlet of the air conditioner is controlled.

11. The control method according to claim 10, characterized in that: When the air conditioner is in cooling mode, the first cross-flow blade (3) is controlled to operate, the second cross-flow blade (9) is stopped, and the second upper air outlet (20) is controlled to open. The steps of controlling the air outlet of the air conditioner include: Get the wind speed mode of the air conditioner; When the air conditioner is at a high wind speed, the roller blind (18) of the lower air guide plate (7) at the first lower air outlet (21) is controlled to open the middle filter (17); Controlling the upper air guide plate (2) at the second upper air outlet (20) to flip and open the second upper air outlet (20); Controlling the operation of the first crossflow fan blade (3); Controlling the second crossflow fan blade (9) to lock; Controlling the second lower air outlet (22) to open, so that airflow enters the first air duct (1) from the second air duct (8) and the second lower air outlet (22), and is blown out from the second upper air outlet (20); When the air conditioner is at a low wind speed, the roller blind (18) of the lower air guide plate (7) at the first lower air outlet (21) is controlled to cover the middle filter (17); Controlling the upper air guide plate (2) at the second upper air outlet (20) to flip and open the second upper air outlet (20); Controlling the operation of the first crossflow fan blade (3); The second lower air outlet (22) is controlled to open, so that the airflow enters the first air duct (1) from the second lower air outlet (22) and is blown out from the second upper air outlet (20).

12. The control method according to claim 10, characterized in that: When the air conditioner is in a heating mode, the second crossflow blade (9) is controlled to operate, the first crossflow blade (3) is stopped, and the first lower air outlet (21) is controlled to open. The steps of controlling the lower air outlet of the air conditioner include: Get the wind speed mode of the air conditioner; When the air conditioner is at a high wind speed, the roller blind (18) of the upper air guide plate (2) at the second upper air outlet (20) is controlled to open the middle filter (17); Controlling the lower air guide plate (7) at the first lower air outlet (21) to flip and open the first lower air outlet (21); controlling the operation of the second crossflow fan blade (9); Controlling the first crossflow fan blade (3) to lock; Controlling the first upper air port (19) to open, so that air flows from the first air duct (1) and the first upper air port (19) into the second air duct (8) and is blown out from the first lower air port (21); When the air conditioner is at a low wind speed, the roller blind (18) of the upper air guide plate (2) at the second upper air outlet (20) is controlled to cover the middle filter (17); Controlling the lower air guide plate (7) at the first lower air outlet (21) to flip and open the first lower air outlet (21); Controlling the operation of the first crossflow fan blade (3); The first upper air port (19) is controlled to open, so that airflow enters the second air duct (8) from the first upper air port (19) and is blown out from the first lower air port (21).

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