Air conditioner condensate water atomizing evaporation and recovery synergic energy-saving device

Abstract

This invention relates to the field of air conditioner condensate recovery technology, specifically to an energy-saving device for the synergistic energy-saving of air conditioner condensate atomization evaporation and recovery. The structure includes an atomizing body, a fresh air float, and a connecting pipe. The fresh air float can slide up and down below the atomizing body within a cavity. As the fresh air float moves upward, the connecting pipe connects the upper and lower spaces, allowing the water mist to enter the indoor unit's air intake channel along with the fresh air. This invention utilizes the existing space of the indoor unit's drain pipe, completely avoiding the air intake channel. This not only ensures that the air conditioner's original heat exchange efficiency and airflow are not affected, but also achieves in-situ treatment of condensate inside the indoor unit, eliminating the need for an external drain pipe and greatly improving installation flexibility. Furthermore, the upper space essentially forms a vaporization buffer mixing chamber, preventing high-concentration water mist from being directly sprayed into the indoor environment, thus avoiding condensation on the walls or air outlets due to localized temperature differences or oversaturation.

Description

Technical Field

[0001] This invention relates to the field of air conditioning condensate recovery technology, specifically to an energy-saving device for the synergistic energy-saving of air conditioning condensate atomization evaporation and recovery. More particularly, it relates to an air conditioner with an integrated atomizing component, which atomizes condensate into water mist and introduces it into the air conditioner's circulating duct to achieve active humidification of indoor air. Background Technology

[0002] In cooling mode, the surface temperature of the evaporator fins of an air conditioner is typically maintained between 7°C and 12°C. When warm, humid indoor air flows through the low-temperature fins, the water vapor in the air undergoes a phase change because the fin temperature is lower than the air dew point temperature, and condenses on the fin surface to form condensate.

[0003] In related technologies, such as Chinese Patent Publication No. CN2821466Y, a drip-free humidifying air conditioning device is disclosed. This device incorporates an ultrasonic atomizer within the condensate collection tank of the air conditioner casing, rapidly atomizing the condensate. The atomized water vapor is then expelled from the air outlet by a fan. This solution not only achieves drip-free operation of the air conditioner but also utilizes water mist to maintain indoor air humidity.

[0004] However, this solution has structural limitations: because the ultrasonic atomizer must be completely submerged in condensate water to function properly, the bottom of the water collection tank must be designed as a sunken structure to create a functional water accumulation area. This design severely encroaches on the lower space inside the air conditioner casing, forcing a significant reduction in the height or folding angle of the evaporator, and also limiting the design of the air duct structure.

[0005] Other related technologies, such as Chinese patent publication number CN107883453A, provide an energy-saving and environmentally friendly air conditioner. This solution moves the atomizing structure to the outdoor unit, collects the condensate generated by the indoor unit through a water collection box, and then sprays the condensate in the form of water mist onto the heat sink of the outdoor condenser.

[0006] While this solution avoids the limitations of the indoor unit's structure, the total amount of condensate produced by the indoor unit during cooling is relatively limited, making it difficult to provide a continuous and sufficient source of water mist. Therefore, relying solely on the limited condensate to be discharged outdoors for spraying cannot meet the continuous heat dissipation needs of the outdoor unit under high temperature or high load operation, resulting in very limited overall cooling effect and energy efficiency improvement. Summary of the Invention

[0007] The purpose of this invention is to provide a synergistic energy-saving device for air conditioner condensate atomization evaporation and recovery. By setting a condensate atomization structure inside the indoor unit, condensate is atomized without encroaching on the internal air intake channel space, thereby achieving active humidification of the indoor air.

[0008] Firstly, a condensate atomizing structure is provided, disposed within an indoor unit, the atomizing structure comprising:

[0009] A housing, wherein a cavity is provided inside the housing;

[0010] Water inlet pipe, which is used to connect the condensate water from the indoor unit into the cavity;

[0011] An atomizing body is disposed above the cavity;

[0012] The fresh air floating block is capable of sliding up and down below the atomizing body within the cavity;

[0013] An air intake pipe is used to connect fresh air to the area below the fresh air float, which, under the action of the fresh air, pushes the condensate above it to contact the atomizing body, generating water mist above the atomizing body; and,

[0014] The connecting pipe connects the upper and lower spaces of the atomizing body. As the fresh air float moves upward, the connecting pipe connects the upper and lower spaces, so that the water mist enters the air intake channel of the indoor unit along with the fresh air.

[0015] Optionally, the bottom of the fresh air float is provided with an air intake channel, which is connected to the air intake pipe.

[0016] Optionally, the fresh air float blocks the lower port of the connecting pipe through its sidewall in the initial position.

[0017] Optionally, the atomizing body includes:

[0018] Atomizing plate, wherein the atomizing plate is provided with through mounting holes; and,

[0019] An atomizing plate is disposed within a mounting hole; wherein the bottom surface of the atomizing plate is exposed downwards from the bottom of the mounting hole.

[0020] Optionally, the water inlet pipe is connected to the drain pipe of the water receiving tray of the indoor unit.

[0021] Optionally, the air inlet pipe is connected to the air outlet of the fan installed on the outdoor unit.

[0022] Secondly, a condensate atomization system is provided, characterized in that it includes:

[0023] The first normally closed solenoid valve is located on the front side of the intake pipe.

[0024] The second normally closed solenoid valve is located on the front side of the water inlet pipe;

[0025] The third normally closed solenoid valve is located in front of the first normally closed solenoid valve and is connected to the space above the atomizing body.

[0026] The mode selection module includes the following modes:

[0027] In the first mode, the second normally closed solenoid valve opens;

[0028] In the second mode, the first normally closed solenoid valve opens;

[0029] In the third mode, the first normally closed solenoid valve and the third normally closed solenoid valve are open.

[0030] In the fourth mode, the third normally closed solenoid valve opens;

[0031] And a control module, which is used to receive the mode output by the mode selection module and open the corresponding normally closed solenoid valve.

[0032] Optionally, it also includes an emergency control module, which is used to control the second normally closed solenoid valve to open when the condensate level in the drip tray of the indoor unit reaches a second preset height value.

[0033] Thirdly, a method for atomizing condensate water is provided, including the following steps:

[0034] Obtain indoor air humidity index and air quality index;

[0035] The amount of fresh air intake above the atomizer is adjusted based on the air quality index.

[0036] The amount of water mist generated in the space above the atomizer is controlled based on the air humidity index.

[0037] Fourthly, an air conditioner is provided, including an indoor unit, wherein the indoor unit is provided with the atomizing structure described in the first aspect.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0039] By utilizing the existing space of the indoor unit's drain pipe, the air intake channel is completely avoided. This not only ensures that the original heat exchange efficiency and airflow of the air conditioner are not affected, but also enables in-situ treatment of condensate inside the indoor unit, eliminating the need for an external drain pipe and greatly improving installation flexibility.

[0040] Positive-pressure fresh air is introduced into the space above the atomizer through a connecting pipe, which forcibly entrains and fully dilutes the micron-sized high-density water mist particles generated by high-frequency atomization. The space above essentially forms a vaporization buffer mixing chamber. In this physical path, the relatively dry outdoor fresh air serves as the carrier air. Before entering the air intake channel of the indoor air conditioning unit, it has already achieved spatial uniform dispersion and deep gas-liquid mixing with the condensed water mist in the buffer mixing chamber. This effectively breaks up the clusters of high-concentration water mist, significantly reduces the local absolute humidity gradient of the airflow, and fundamentally avoids the phenomenon of condensation on the walls or air outlets caused by local temperature differences or supersaturation when high-concentration water mist is directly sprayed into the indoor environment. Ultimately, it delivers healthier air with a more uniform temperature and humidity distribution and a softer feel to the room. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the air intake channel and conventional drainage structure of the indoor unit of the air conditioner of the present invention;

[0042] Figure 2 This is a schematic diagram showing the installation position of the atomizing structure inside the indoor unit casing in this invention;

[0043] Figure 3 This is a schematic cross-sectional view of the atomization structure of the present invention;

[0044] Figure 4 This is an exploded structural diagram of the internal cavity and atomizing plate of the atomizing structure of the present invention.

[0045] Figure 5 This is a schematic diagram of the structure of the new air floating block of the present invention;

[0046] Figure 6 This is a schematic diagram of the connection structure between the fan and the air inlet pipe of the present invention;

[0047] Figure 7 This is a schematic diagram of the first stage of the first mode of the present invention;

[0048] Figure 8 This is a schematic diagram of the second stage of the first mode of the present invention;

[0049] Figure 9 This is a schematic diagram of the first stage of the second mode of the present invention;

[0050] Figure 10 This is a schematic diagram of the second phase of the second mode of the present invention;

[0051] Figure 11 This is a diagram showing the distribution of the third normally closed solenoid valve in the third and fourth modes of the present invention.

[0052] Figure 12 This is a schematic diagram of the control architecture of the condensate atomization system of the present invention;

[0053] Figure 13 This is a schematic flowchart of the condensate atomization method in an embodiment of the present invention.

[0054] The meanings of the labels in the diagram are as follows:

[0055] 1. Base; 2. Faucet; 3. End plate; 4. Air guide vanes; 5. Evaporator; 6. Drain tray; 7. Drain pipe; 8. Connection space; 21. Outdoor unit; 24. Indoor unit;

[0056] 9. Atomizing structure; 10. First shell; 11. Second shell; 12. Humidifying pipe; 13. Water inlet pipe; 14. Air inlet pipe; 15. Atomizing plate; 16. Atomizing disc; 17. Fresh air float; 18. Connecting pipe; 19. Reinforcing plate; 20. Elastic seal; 22. Fan; 23. Filter screen; 26. Limiting block; 27. Air inlet channel; 28. Lower space; 29. ​​Upper space;

[0057] 25. First normally closed solenoid valve; 31. Second normally closed solenoid valve; 32. Third normally closed solenoid valve. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] Figure 1 The indoor unit 24 of the air conditioner is shown, including a housing consisting of at least a base 1 and a faceplate 2. It also includes an air intake duct, which is typically designed with high integration to maximize heat exchange area, improve airflow efficiency, and reduce noise within a limited housing space. This air intake duct is not a single, independent pipe, but rather formed by the evaporator 5, the cross-flow fan, the base 1 (including the rear volute), the metal end plate 3, and the drip tray 6.

[0060] Specifically, the base 1 of the indoor unit 24 is integrally injection molded with the duct wall. The inner wall of the base 1 is designed as an arc-shaped structure with a specific aerodynamic curvature, namely the rear volute. The cross-flow fan is rotatably mounted within the recessed space formed by the rear volute. See [link to documentation]. Figure 1The evaporator 5 typically employs a multi-fold structure (such as two-fold, three-fold, or inverted V-shape), and is entirely enclosed in front of and above the cross-flow fan. The evaporator 5 not only serves as the core heat exchange component, but the windward and leeward sides of its fin array essentially constitute the main physical boundary of the air conditioning intake side. When indoor air is drawn in by the negative pressure of the cross-flow fan, it must pass through the main structure of the evaporator 5.

[0061] like Figure 1 As shown, end plates 3 are fixedly installed at the left and right ends of the evaporator 5. End plates 3 not only serve as structural components to support the heat exchange tubes and fins and position the evaporator 5 on the base 1, but also cooperate with the side walls at both ends of the base 1 to form a closed lateral windbreak boundary at both ends of the cross-flow impeller to prevent high-pressure airflow from leaking out from both ends of the impeller.

[0062] See Figure 1 The water collection tray 6 is located at the lower end of the evaporator 5 and is mainly used to collect condensate. In the configuration of the air outlet side of the air duct, the back side of the water collection tray 6 (i.e., the side near the cross-flow impeller) is a smooth arc surface extending outward. This arc surface echoes the rear volute and together they form the front volute area below the cross-flow impeller to guide the airflow smoothly to the air outlet guide vane 4.

[0063] In summary, indoor air enters through the air intake grille at the top or front of the casing, passes through the enclosed evaporator 5 to complete the heat exchange, and is then drawn into the interior by the cross-flow fan. Under the combined squeezing and guiding effect of the centrifugal force of the cross-flow fan and the rear volute and water tray 6 of the chassis, a stable high-pressure airflow is formed, which is finally blown out from the air outlet at the bottom.

[0064] In addition, when the air conditioner is running in cooling or dehumidifying mode, the moisture in the indoor air will condense on the low-temperature surface of the evaporator 5 to form condensate. This condensate drips down under gravity and collects in the drip tray 6 located below the evaporator 5. In order to smoothly drain the condensate in the drip tray 6, the inner bottom surface of the drip tray 6 is usually designed with a slight guide slope to guide the water flow to the lowest point on one side of the drip tray 6, where a drain pipe 7 is provided.

[0065] Furthermore, since existing technologies typically require an external drain pipe to drain the condensate to the outside, in order to facilitate the connection and fitting of the drain pipe with the drain pipe 7 during actual assembly and maintenance, a portion of the docking space 8 is usually reserved inside the casing of the indoor unit 24, near the drain pipe 7. This docking space 8 provides a certain amount of clearance and operational margin for operators or automated assembly.

[0066] Figure 2An exemplary installation position of the atomizing structure 9 of this application is shown, namely, the atomizing structure 9 is installed using the docking space 8, which completely avoids the air intake channel. Therefore, the introduction of the atomizing structure 9 does not occupy the air intake channel and effective cross-sectional area, avoiding physical interference with the original airflow circulation path, thereby ensuring that the original high heat exchange efficiency, large air volume and quiet performance of the air conditioner are not affected. In addition, the atomizing structure 9 can directly atomize and discharge the condensate collected in the drip tray 6 inside the indoor unit 24, thus eliminating the need for a drain pipe. The channel and surrounding space on the outer casing originally used for the drain pipe are freed up, and this application further utilizes this freed space and the atomizing structure 9 to connect the fresh air duct.

[0067] Figure 3 The atomizing structure 9 disposed within the indoor unit 24 is shown. The atomizing structure 9 includes:

[0068] A housing, wherein a cavity is provided inside the housing;

[0069] Water inlet pipe 13, which is used to connect the condensate water of indoor unit 24 into the cavity;

[0070] An atomizing body is disposed above the cavity;

[0071] Fresh air float 17, which can slide up and down inside the cavity below the atomizing body;

[0072] Air intake pipe 14, which is used to introduce fresh air into the area below fresh air float 17, the fresh air float 17 being pushed by the fresh air to contact the condensate above it with the atomizing body, and generating water mist above the atomizing body; and,

[0073] The connecting pipe 18 is connected to the upper space 29 and the lower space 28 of the atomizing body. As the fresh air float 17 moves upward, the connecting pipe 18 connects the upper space 29 and the lower space 28 so that the water mist enters the air intake channel of the indoor unit 24 along with the fresh air.

[0074] See Figure 3 Considering that the condensate may contain tiny dust particles or impurities, the atomizer may require scale cleaning or replacement of core components after long-term operation. Therefore, in one embodiment, the atomizer's housing adopts a split-assembly design; specifically, the housing includes a first housing 10 and a second housing 11, which are detachably connected. In practice, this detachable connection can be achieved through mechanical methods such as screw fastening, snap-fit ​​engagement, or threaded connection, allowing users to quickly open the housing and access its interior without damaging the overall structure.

[0075] Figure 4The cavity inside the shell and the internal structure of the cavity are shown, such as... Figure 3 and Figure 4 As shown, after the first housing 10 and the second housing 11 are assembled and connected, their interiors together form a sealed cavity. The atomizing body is installed between the first housing 10 and the second housing 11. Using the atomizing body as a boundary, the space above the atomizing body within this sealed cavity is the upper space 29, and the space below the atomizing body is the lower space 28. (See also...) Figure 4 The atomizing body includes:

[0076] Atomizing plate 15, wherein the atomizing plate 15 is provided with vertically penetrating mounting holes; and,

[0077] Atomizing plate 16, wherein the atomizing plate 16 is disposed within the mounting hole;

[0078] In other words, the space above the atomizing plate 15 inside the cavity is the upper space 29, and the space below the atomizing plate 15 is the lower space 28.

[0079] In a preferred embodiment, the first housing 10 serves as a water chamber at the bottom, and the second housing 11 serves as an air chamber at the top. In terms of specific installation, the top inner edge of the first housing 10 has a raised lower support step, and the bottom inner edge of the second housing 11 has a corresponding upper clamping end face. The outer peripheral edge of the atomizing plate 15 rests on the lower support step. To ensure absolute moisture isolation between the upper and lower spaces 28, a waterproof sealing ring (or silicone gasket) is embedded between the outer peripheral edge of the atomizing plate 15 and the lower support step, and between the atomizing plate 15 and the upper clamping end face. When the first housing 10 and the second housing 11 are fastened together with fasteners (such as screws), the upper clamping end face and the lower support step together clamp and press the atomizing plate 15 and the waterproof sealing ring, thereby achieving stable installation of the atomizing plate 15 and airtight and watertight isolation.

[0080] Optionally, the atomizing plate 16 is a piezoelectric ceramic microporous atomizing plate with a working voltage of DC5V / 12V and a working frequency of 1.7MHz / 2.4MHz. It mainly consists of a ring-shaped piezoelectric ceramic oscillator and a microporous metal diaphragm attached to its surface. Its working principle is as follows: when an external high-frequency alternating voltage is applied to the piezoelectric ceramic oscillator, the piezoelectric ceramic generates high-frequency mechanical frequency response vibration (usually in the megahertz level); this high-frequency vibration drives the microporous metal diaphragm to undergo high-frequency deformation, breaking the surface tension of the liquid condensate in contact with its lower surface, breaking the liquid water and forcibly squeezing it through the micron-sized pores on the diaphragm, thereby ejecting micron-sized water mist particles from the upper surface of the atomizing plate 16, realizing the phase change from liquid water to gaseous mist.

[0081] Optionally, multiple atomizing plates 16 are connected in parallel in the electrical circuit and uniformly connected to an external high-frequency drive circuit board. The parallel design ensures that the failure or aging of a single atomizing plate 16 will not cause the entire board to fail. Considering that the space below 28 is condensate, a dedicated wiring groove is provided on the upper surface or inside of the atomizing plate 15 to prevent short circuits. The positive and negative wires connecting each atomizing plate 16 are arranged along the wiring groove, and the connection points (solder joints) and the wiring groove are encapsulated with waterproof insulating glue (such as epoxy resin or waterproof silicone). The main lead wire, after convergence, passes through the waterproof wire hole reserved on the side wall of the first housing 10 or the second housing 11 and is led out to the outside of the housing to connect with the main control board.

[0082] Optionally, the bottom surface of the atomizing plate 16 is exposed from the bottom of the mounting hole into the space 28 below, so that the bottom surface of the atomizing plate 16 is in full contact with the condensate in the space 28 below.

[0083] In one embodiment, such as Figure 3 As shown, a water inlet pipe 13 communicating with the interior is provided on the outer wall of the first housing 10 near the drain pipe 7. The drain pipe 7 below the water receiving tray 6 is sealed to the water inlet pipe 13, thereby creating a condensate drainage channel between the water receiving tray 6 and the lower space 28 of the cavity. Furthermore, a second normally closed solenoid valve 31 (in conjunction with...) is provided between the drain pipe 7 and the water inlet pipe 13. Figures 7 to 11 (as shown in the figure) to achieve the opening and closing of the flow channel.

[0084] Figure 6 The connection structure between the fan 22 and the air inlet pipe 14 is shown. See [link / reference] Figure 3 and Figure 6 On the outer wall of the first housing 10 near the channel on the outer shell of the indoor unit 24 of the air conditioner, which was originally used to run the drain pipe, an air inlet pipe 14 is provided to connect to the inside of the first housing 10. The air inlet pipe 14 reuses the original through-wall pipe channel, so there is no need to make additional openings in the wall or the air conditioner housing.

[0085] In a preferred embodiment, the air intake pipe 14 is connected to the air outlet of the fan 22 installed on the outdoor unit 21 of the air conditioner via a pipeline. A first normally closed solenoid valve 25 is installed in the air passage between the air intake pipe 14 and the fan 22. Figures 7 to 11 (As shown).

[0086] Optionally, see Figure 6 In order to ensure the cleanliness of the fresh air introduced into the room, an air purification component is provided on the air intake side of the fan 22, and the air purification component includes at least one filter 23.

[0087] In a preferred embodiment, see Figure 4In the lower space 28 inside the first housing 10, a sliding fresh air float 17 is provided. This fresh air float 17 further dynamically divides the lower space 28 inside the first housing 10 into two parts: the upper part of the fresh air float 17 is a water storage chamber for containing condensate, and the lower part of the fresh air float 17 is an air intake channel 27 for receiving fresh air pumped in by the fan 22. By sliding the fresh air float 17 up and down, the positive pressure of the gas generated by the fresh air filling below can be smoothly converted into an upward mechanical thrust, thereby lifting the condensate above to rise smoothly and making the condensate contact the bottom surface of the atomizing plate 16.

[0088] Specifically, during the high-frequency operation of the atomizing plate 16, the condensate in the upper water storage chamber is continuously atomized and consumed, and its overall volume gradually decreases. However, since the fan 22 continuously provides a stable positive pressure airflow in the air intake channel 27 below the fresh air float 17, the fresh air float 17 will adaptively continue to slide upward as the amount of condensate decreases under the continuous action of the bottom aerodynamic thrust.

[0089] This stepless dynamic upward push compensation ensures that the fresh air float 17 always maintains a state of supporting and squeezing the remaining condensate above. With the above design, no matter how the amount of condensate in the water storage chamber changes (from full to almost empty), it can ensure that the condensate is continuously pushed upward and always closely adheres to the bottom surface of the atomizing plate 16.

[0090] Optionally, multiple guide ribs are provided on the inner sidewall of the first housing 10. For example, 3 to 4 guide ribs are formed at equal intervals in the vertical direction on the inner sidewall of the first housing 10. The width of the ribs is 5 mm to 8 mm and the height is 3 mm to 5 mm. Correspondingly, a guide groove adapted to the guide ribs is provided on the outer peripheral sidewall of the fresh air float 17. Through the sliding cooperation between the ribs and the groove, the degree of freedom of movement of the fresh air float 17 is restricted, so that it can only make linear up-and-down movement in the vertical direction.

[0091] Figure 5 The fresh air float 17 is shown, which is a rigid plastic shell with a hollow interior. This design not only reduces the weight of the fresh air float 17 itself and lowers the critical air pressure required for the fan 22 to push it up, but also provides a reinforcing plate 19 in the hollow cavity of the fresh air float 17 to improve its capacity.

[0092] Optionally, the fresh air float 17 is made of a lightweight, water-resistant material (such as expanded polystyrene EPS or polyurethane foam).

[0093] Optionally, one or more sealing grooves are formed circumferentially on the outer peripheral sidewall of the fresh air float 17. An elastic sealing element 20, such as an O-ring, silicone sealing ring, star-shaped sealing ring, lip-shaped sealing ring, or Y-shaped sealing ring, is embedded within the sealing groove and is interference-fitted with the inner wall of the first housing 10. The lip-shaped or Y-shaped sealing ring has flexible skirts that open upwards and downwards from the fresh air float 17, respectively. Under air or water pressure, the flexible skirts can adaptively and tightly conform to the inner wall of the first housing 10, thereby achieving a highly reliable bidirectional gas-liquid seal while maintaining extremely low sliding friction resistance.

[0094] In a preferred embodiment, see Figure 3 and Figure 4 The intake pipe 14 is located at the bottom of the outer wall of the first housing 10, and a limit block 26 is provided on the inner wall of the first housing 10. Figure 7 As shown in the figure, the function of the limiting block 26 is to make the lower stop point of the fresh air float 17 just above the air intake pipe 14, so that the air intake channel 27 at the bottom of the fresh air float 17 can be connected to the air intake pipe 14. The lower stop point refers to the lowest physical limit position that the fresh air float 17 can reach when the first housing 10 moves downward.

[0095] Setting the lower stop point above the air intake pipe 14 ensures that even when the fresh air float 17 falls to the lower stop point, an initial air intake channel 27 is still maintained between its bottom and the inner bottom surface of the first housing 10. This not only avoids the risk of the air intake pipe 14 being blocked, but also ensures that the positive pressure air pumped in by the fan 22 can instantly diffuse to the entire bottom surface of the fresh air float 17, thereby providing a reliable initial aerodynamic thrust for the upward sliding of the fresh air float 17.

[0096] Optionally, the bottom surface of the fresh air float 17 is an inclined surface. This inclined surface extends downward from the side near the air intake pipe 14 to the side away from the air intake pipe 14, so that the bottom surface of the fresh air float 17 and the inner bottom surface of the first housing 10 form a wedge-shaped air intake channel 27 that gradually narrows from the air intake side to the far end. This allows the concentrated airflow pressure at the air intake to be quickly and evenly converted into upward static pressure acting on the bottom surface of the fresh air float 17.

[0097] Optionally, see Figure 3 and Figure 4 The connecting pipe 18 and the air inlet pipe 14 are located on the same side, and the upper and lower ports of the connecting pipe 18 are connected to the first housing 10 and the second housing 11 respectively, that is, the upper space 29 and the lower space 28 of the atomizer are connected through the connecting pipe 18.

[0098] like Figure 4As shown, when the fresh air float 17 is in its initial position, it blocks the lower port of the connecting pipe 18 through its side wall. That is, when the fresh air float 17 is at its lower stop point, the side wall of the fresh air float 17 is opposite to the lower port of the connecting pipe 18, thereby blocking the lower port of the connecting pipe 18.

[0099] like Figure 3 As shown, a humidifying pipe 12 is provided on the top of the first housing 10. One end of the humidifying pipe 12 is connected to the end plate 3, and the other end is connected to the second housing 11. The humidifying pipe 12 is used to connect the air inlet channel with the upper space 29 of the cavity.

[0100] Optionally, the longitudinal width of the sidewall of the fresh air float 17 on the side away from the air inlet pipe 14 is greater than the longitudinal width of the water inlet pipe 13. This is because when the fresh air float 17 moves upward or downward past the opening of the water inlet pipe 13, if the width of the sidewall of the fresh air float 17 is small, the opening of the water inlet pipe 13 will be exposed simultaneously in the space above the float 29 and the space below the float 28. If this happens, the high-pressure airflow in the lower space 28 will directly bypass the fresh air float 17 through the opening of the water inlet pipe 13 and enter the upper space 29. Therefore, by making the longitudinal width of the sidewall of the fresh air float 17 greater than the longitudinal width of the opening of the water inlet pipe 13, it is ensured that the sidewall of the fresh air float 17 can always form a complete cross-shaped shield over the opening when sliding past the water inlet pipe 13.

[0101] In one embodiment, Figure 12 A condensate atomization system is shown; see [link to relevant documentation]. Figure 7 and Figure 12 The system includes:

[0102] The first normally closed solenoid valve 25 is located on the front side of the intake pipe 14.

[0103] The second normally closed solenoid valve 31 is located on the front side of the water inlet pipe 13.

[0104] The third normally closed solenoid valve 32 is located in front of the first normally closed solenoid valve 25 and is connected to the upper space 29 of the atomizing body.

[0105] The mode selection module includes the following modes:

[0106] In the first mode, the second normally closed solenoid valve 31 is opened;

[0107] In the second mode, the first normally closed solenoid valve 25 is opened;

[0108] In the third mode, the first normally closed solenoid valve 25 and the third normally closed solenoid valve 32 are opened.

[0109] In the fourth mode, the third normally closed solenoid valve 32 is opened;

[0110] And a control module, which is used to receive the mode output by the mode selection module and open the corresponding normally closed solenoid valve.

[0111] In a preferred embodiment, Figure 7 The first stage of the first mode is shown. The first mode is the water replenishment mode. In this mode, the first normally closed solenoid valve 25 is closed, and the fresh air float 17 is in the initial position. The second normally closed solenoid valve 31 is opened (opened to the maximum opening degree). The condensate in the water receiving tray 6 flows into the lower space 28 of the cavity through the guide channel. At the same time, the condensate level in the upper space 29 is monitored. Figure 8 The second stage of the first mode is shown, that is, when the condensate level reaches the first preset height value (such as 80% of the water storage chamber volume), the second normally closed solenoid valve 31 closes.

[0112] Figure 9 The first stage of the second mode is shown. The second mode is the atomization mode. In this mode, the first normally closed solenoid valve 25 is opened (opened to the maximum opening). Since the fan 22 continuously provides a stable positive pressure airflow (i.e. fresh air) in the air intake channel 27 below the fresh air float 17, the fresh air float 17 will adaptively slide upward as the amount of condensate decreases under the continuous action of the bottom aerodynamic thrust. At the same time, the atomizing plate 16 continuously generates water mist into the space 29 above the cavity. Figure 10 The second stage of the second mode is shown. When the fresh air float 17 is disengaged from the lower port of the connecting pipe 18, the fresh air in the lower space 28 enters the upper space 29 through the connecting pipe 18. The water mist generated in the upper space 29 enters the air intake channel through the humidification pipe 12 along with the fresh air, thereby achieving the purpose of humidifying the room.

[0113] Figure 11 The third normally closed solenoid valve 32 is shown for the third and fourth modes. The third mode is the fresh air volume control mode, which maintains atomization and controls the fresh air intake volume by the opening degree of the third normally closed solenoid valve 32. The fourth mode is the fresh air mode, in which atomization is not performed, and the fresh air intake volume is directly controlled by the opening degree of the third normally closed solenoid valve 32.

[0114] It should be noted that when the fresh air float 17 moves upward, a small amount of condensate will flow into the air intake channel 27 from the water inlet pipe 13, but it will be dried by the fresh air and therefore will not have any adverse effects.

[0115] Furthermore, in order to achieve intelligent adaptive control of condensate atomization and fresh air introduction, the control module (such as the microcontroller MCU or main control computer board of the air conditioner) is not only electrically connected to the first normally closed solenoid valve 25, the second normally closed solenoid valve 31, the third normally closed solenoid valve 32 and the fan 22, but also connected to multiple environmental sensors installed inside and outside the air conditioner.

[0116] The mode selection module is built into the control module (or as an independent logic unit). It receives and comprehensively analyzes the following sensor data: condensate level data in the drip tray 6, liquid level data inside the cavity, indoor humidity data, indoor air quality data (such as carbon dioxide or PM2.5 concentration), and the current operating mode of the air conditioner (such as cooling, dehumidification, heating, or ventilation). Based on the above data, it automatically generates corresponding control commands to trigger the operation of a single mode or a combination of multiple modes, for example:

[0117] Scenario 1: The air conditioner is operating in cooling or dehumidifying mode. The indoor humidity is normal or slightly high, and condensate is rapidly generated in the drip tray 6, reaching a high level. The mode selection module first triggers the first mode, opening the second normally closed solenoid valve 31. Condensate flows into the water storage chamber above the fresh air float 17. When the water level in the storage chamber reaches the first preset height, the second normally closed solenoid valve 31 closes, automatically switching to the second mode. At this time, the first normally closed solenoid valve 25 opens, and the fan 22 builds pressure, pushing the float 17 upward for atomization. When the float 17 rises to the connecting pipe 18, the basic fresh air brings the water mist into the room. After the water in the storage chamber is drained, the system checks the water level in the drip tray 6 again. If there is still water accumulation, it cycles back to the first mode. This combination completely replaces the traditional drain pump and external drain pipe.

[0118] Scenario 2: The air conditioner is operating in heating mode. At this time, the indoor unit operates as a condenser, and no condensate is generated in the drip tray 6. Since there is no condensate to handle, to prevent the atomizing fin 16 from burning dry, the control module keeps the first normally closed solenoid valve 25 and the second normally closed solenoid valve 31 closed, directly triggering the fourth mode. In this mode, only the opening degree of the third normally closed solenoid valve 32 is adjusted, in conjunction with the fan 22, to directly introduce fresh outdoor air into the upper space 29 and deliver it into the room.

[0119] Optionally, an emergency control module is also included. This module controls the second normally closed solenoid valve 31 to open when the condensate level in the drip tray 6 of the indoor unit 24 reaches a second preset height value. In other words, regardless of the normal mode, if the level sensor detects that the condensate level in the drip tray 6 has reached the second preset height value, the mode selection module forcibly interrupts the current logic, immediately closes the second normally closed solenoid valve 31 (cutting off the water supply), opens the first normally closed solenoid valve 25, activates the atomizing plate 16 for high-frequency atomization, and uses the fresh air thrust to push the fresh air float 17 to its highest point for the highest frequency atomization and evacuation operation. This continues until the liquid level returns to below the safe level, ensuring that no indoor unit leakage occurs under any extreme conditions.

[0120] Optionally, the control module is the central processing unit of the intelligent air conditioner, and its physical carrier can be a microcontroller (MCU), digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or main control computer board. The control module integrates a central processing unit (CPU), an analog-to-digital converter (A / D converter), a timer, and input / output (I / O) ports to perform comprehensive and coordinated control of the condensate atomization system and the fresh air system.

[0121] Optionally, the input terminal of the control module is electrically connected to a sensor network distributed throughout the air conditioning system and the room via a hardwired connection or a wireless communication bus, specifically including:

[0122] A first liquid level sensor located in the water receiving tray 6 and a second liquid level sensor (such as a capacitive water level probe or float switch) located in the space 28 (water storage chamber) below the first housing 10 are connected to provide real-time feedback on the accumulated height of condensate to the control module.

[0123] The system connects to indoor and outdoor temperature and humidity sensors, as well as air quality sensors (such as PM2.5 dust sensors, CO2 sensors, and TVOC volatile gas sensors) located in the air intake pipe 14 or in the indoor environment. The control module's built-in A / D converter converts the analog signals collected by the sensors into digital signals for the central processing unit to perform logical operations.

[0124] Optionally, the output of the control module is connected to multiple high-power drive circuits and relay modules for precise control of the start, stop, and opening degree of each actuator.

[0125] Optionally, output PWM (Pulse Width Modulation) signal or high / low level signal to independently drive the coils of the first normally closed solenoid valve 25, the second normally closed solenoid valve 31, and the third normally closed solenoid valve 32, and to control the speed of the outdoor fresh air fan 22 by frequency conversion, thereby accurately adjusting the water intake and fresh air thrust.

[0126] Optionally, the output of the control module is also specifically connected to a high-frequency oscillation drive circuit. When an atomization command is received, the control module outputs a megahertz (MHz) level high-frequency alternating drive voltage to each atomizing element 16 mounted on the atomizing plate 15 through the drive circuit, thereby exciting the piezoelectric ceramic to generate high-frequency mechanical resonance for water atomization.

[0127] Optionally, the control module is also communicatively connected to a non-volatile memory (such as EEPROM or Flash memory), in which the low-level control program of the mode selection module is programmed. Simultaneously, this memory pre-stores various threshold parameters, including: a first preset height value (water inlet safety stop line), a second preset height value (the second preset height value is 90% of the water tray 6 volume, serving as an overflow alarm line), the indoor target humidity range, and health standard thresholds for PM2.5 / CO2 concentration. During operation, the control module autonomously decides and invokes the aforementioned first to fourth modes and their combinations by comparing real-time sensor data with the aforementioned preset thresholds.

[0128] Optionally, the control module also integrates a wireless communication module (such as a Wi-Fi, Bluetooth, or ZigBee module). Users can remotely send forced execution commands for specific modes to the control module via a smartphone APP, smart speaker, or cloud server (for example, a user can remotely activate the fourth mode for whole-house fresh air exchange via the APP before leaving get off work), realizing IoT-based intelligent control of condensate atomization and the fresh air system.

[0129] Optionally, when the water level in the storage chamber is lower than 50% of the first preset height value, the control module automatically switches back from the second mode (atomization mode) to the first mode (water replenishment mode); when the indoor humidity reaches 95% of the target humidity, the control module reduces the number of atomizing plates 16 in operation to reduce the amount of water mist generated.

[0130] In one embodiment, Figure 13 A method for atomizing condensate water is shown, comprising the following steps:

[0131] S100: Obtain indoor air humidity index and air quality index;

[0132] S200, based on the air quality index, regulates the fresh air intake of the space above the atomizer 29;

[0133] S300, the amount of water mist generated in the space above the atomizer 29 is adjusted based on the air humidity index.

[0134] In this embodiment, electronic switching components (such as MOSFETs, relays, or SCRs) are independently connected in series on the power supply branch circuits connecting each atomizing plate 16 (or a control group consisting of several adjacent atomizing plates 16). All electronic switching components are electrically connected to the air conditioner's control module. By outputting multiple independent control signals (such as PWM control signals), the control module can independently control the conduction and cutoff of the electronic switching components on each power supply branch circuit, thereby achieving selective control of the operating state (start or stop) of any one or any group of atomizing plates 16.

[0135] Based on this, the atomizer in this embodiment can achieve intelligent adaptive operation. That is, when the air conditioner is in a high-load dehumidification or cooling state and the amount of condensate generated by the water tray 6 is large, the control module controls all electronic switch components to be turned on, so that all atomizing plates 16 work at the same time to consume the condensate quickly with the maximum atomization amount and prevent the water level in the lower space 28 from overflowing. When the amount of condensate in the air conditioner is small, or the water level in the lower space 28 is low, the control module turns on only some electronic switch components according to the preset program, so that some atomizing plates 16 work and others go into hibernation.

[0136] In addition, the control module can also control different atomizing plates 16 to work alternately through time relays or internal programs.

[0137] S200, based on the air quality index, regulates the fresh air intake of the space above the atomizer 29;

[0138] The control module first determines the air quality index. The theoretical fresh air intake required for air purification was calculated. :

[0139] ;

[0140] In the formula, Air quality deviation coefficient; Air Quality Index It characterizes the concentration level of polluting gases or suspended particulate matter in indoor air. The higher the number, the worse the air quality. The preset upper limit threshold for healthy concentration; when the actual concentration Additional fresh air compensation will only be activated when the limit is exceeded.

[0141] Considering the physical constraints of the atomization system itself, the system has a preset minimum boost air intake volume. This air intake volume corresponds to the minimum operating speed of the variable frequency motor of the fan 22, and is used to ensure that when the first normally closed solenoid valve 25 is at its maximum opening, the lower space 28 can build up sufficient positive pressure to push the condensate to the atomizing plate 16.

[0142] Therefore, the actual target total intake volume output by the system Take the larger of the two:

[0143] ;

[0144] The control module will This is converted to the target speed of the variable frequency motor of fan 22. After determining the total air volume, the control module calculates the target opening degree of the third normally closed solenoid valve 32. :

[0145] ;

[0146] In the formula, This is the valve flow conversion factor.

[0147] S300, the amount of water mist generated in the space above the atomizer 29 is adjusted based on the air humidity index;

[0148] After the fan 22 and all air passage valves are in place and a stable flow of fresh air has been ensured in the space above 29, the control module will start executing S300 to prevent water mist from accumulating and condensing in the absence of wind.

[0149] The control module adjusts according to the current indoor humidity. and the current liquid level in the water storage chamber Calculate the target water mist generation amount :

[0150] ;

[0151] In the formula, This is the humidity deviation adjustment coefficient; This is the emergency venting coefficient for liquid level overflow, and it is set in the system settings. The weight priority is much greater than ; The preset indoor humidity level is the most comfortable value for the target air humidity index. This is the safe liquid level threshold.

[0152] Control module according to The calculation results are used to output a PWM pulse signal to control the number of atomizing plates 16 engaged on the atomizing plate 15, or to adjust their high-frequency oscillation power. This algorithm incorporates post-humidity calculation with liquid level safety compensation. This achieves precise, on-demand supply of indoor humidity while ensuring sufficient fresh air intake; simultaneously, it addresses the risk of condensate overflow. When the system is in operation, it can disregard humidity requirements and forcibly increase the amount of atomization while ensuring the minimum fresh air thrust, thus ensuring drainage safety.

[0153] Optionally, the fan 22 is a DC inverter centrifugal fan with a minimum speed of 800 RPM.

[0154] In one embodiment, see Figure 6 An air conditioner is provided, including an indoor unit, wherein the aforementioned atomizing structure 9 is provided inside the indoor unit. In an exemplary manner, the atomizing structure 9 is connected to the inner side of the outer casing of the indoor unit 24 via a snap-fit, and the first casing 10 is fixed to the base plate of the docking space 8 by screws to ensure installation stability.

[0155] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A condensate atomizing structure (9), disposed within an indoor unit (24), characterized in that, The atomizing structure (9) includes: A housing, wherein a cavity is provided inside the housing; Water inlet pipe (13), the water inlet pipe (13) is used to connect the condensate water of the indoor unit (24) into the cavity; An atomizing body is disposed above the cavity; Fresh air float (17), the fresh air float (17) can slide up and down below the atomizing body in the cavity; An air intake pipe (14) is used to introduce fresh air into the area below a fresh air float (17), which, under the action of the fresh air, pushes the condensate above it to contact the atomizing body, generating water mist above the atomizing body; and, The connecting pipe (18) is connected to the upper space (29) and lower space (28) of the atomizing body. As the fresh air float (17) moves upward, the connecting pipe (18) connects the upper space (29) and lower space (28) so that the water mist enters the air intake channel of the indoor unit (24) along with the fresh air.

2. The atomizing structure (9) according to claim 1, characterized in that, The bottom of the fresh air float (17) is provided with an air intake channel (27), which is connected to the air intake pipe (14).

3. The atomizing structure (9) according to claim 1, characterized in that, The fresh air float (17) blocks the lower port of the connecting pipe (18) through its sidewall in the initial position.

4. The atomizing structure (9) according to claim 1, characterized in that, The atomizing body includes: Atomizing plate (15), wherein the atomizing plate (15) is provided with through mounting holes; and, Atomizing plate (16) is disposed in the mounting hole; wherein the bottom surface of the atomizing plate (16) is exposed from the bottom of the mounting hole to the space (28) below.

5. The atomizing structure (9) according to claim 1, characterized in that, The inlet pipe (13) is connected to the drain pipe (7) of the water receiving tray (6) of the indoor unit (24).

6. The atomizing structure (9) according to claim 1, characterized in that, The air inlet pipe (14) is connected to the air outlet of the fan (22) installed on the outdoor unit (21).

7. A condensate atomization system, characterized in that, include: The first normally closed solenoid valve (25) is located in front of the intake pipe (14); The second normally closed solenoid valve (31) is located in front of the water inlet pipe (13); The third normally closed solenoid valve (32) is located in front of the first normally closed solenoid valve (25) and is connected to the space above the atomizer (29); The mode selection module includes the following modes: In the first mode, the second normally closed solenoid valve (31) is opened; In the second mode, the first normally closed solenoid valve (25) is opened; In the third mode, the first normally closed solenoid valve (25) and the third normally closed solenoid valve (32) are open; In the fourth mode, the third normally closed solenoid valve (32) opens; And a control module, which is used to receive the mode output by the mode selection module and open the corresponding normally closed solenoid valve.

8. The system according to claim 7, characterized in that, It also includes an emergency control module, which is used to control the second normally closed solenoid valve (31) to open when the condensate level in the water tray (6) of the indoor unit (24) reaches the second preset height value.

9. A method for atomizing condensate, characterized in that, Includes the following steps: Obtain indoor air humidity index and air quality index; The fresh air intake of the space above the atomizer (29) is adjusted based on the air quality index; The amount of water mist generated in the space above the atomizer (29) is controlled based on the air humidity index.

10. An air conditioner, comprising an indoor unit (24), characterized in that, The indoor unit (24) is provided with an atomizing structure (9) as described in any one of claims 1 to 6.

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