A kitchen air conditioner

Abstract

The utility model relates to domestic appliance technical field discloses a kitchen air conditioner, including the casing, the evaporative side water pan of being located in the casing, the condensing side water pan and the sprinkler device, the sprinkler device is used for spraying the condensed water to the condenser surface, the sprinkler device includes water pump and sprinkling box, the sprinkling box is located at the top of condenser, it has the water distribution chamber that extends along the length direction of condenser, the water inlet chamber that is located at one side of water distribution chamber, the water inlet chamber is connected with the middle part of water distribution chamber and is equipped with the water inlet, the bottom wall of water distribution chamber is opened and has the multiple rows water distribution hole that extends along its length direction, the aperture of multiple rows water distribution hole gradually increases from the middle part to both sides, and the bottom wall of water distribution chamber is set down to the direction of being away from the water inlet chamber along the length direction of water distribution chamber perpendicularly, the kitchen air conditioner above-mentioned, the aperture of the water distribution hole of the sprinkling box is effective compensation along the water pressure attenuation of water distribution chamber length direction, and simultaneously in the width direction of water distribution chamber, the internal water pressure on the cross section is balanced to the inclined bottom wall, and the both synergies can form the water curtain that covers overall, thickness is uniform on the condenser surface, improves the heat dissipation efficiency. Besides, the inclined bottom wall is also favorable to emptying residual condensed water, avoids the problem of bacterial growth and dirt blockage.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a kitchen air conditioner. Background Technology

[0002] The kitchen environment, due to cooking activities, is characterized by high temperature, high humidity, and abundant oil fumes, which places stringent demands on kitchen cooling equipment. When traditional air conditioners are used in a kitchen environment, their condensers easily accumulate grease, leading to a sharp decrease in heat dissipation efficiency, poorer cooling performance, and a significant increase in energy consumption.

[0003] To address this issue, the industry has proposed several designs incorporating condenser self-cleaning or auxiliary heat dissipation functions. Among these, using condensate water generated by the evaporator to spray the grease-covered condenser is an effective, energy-saving, and environmentally friendly method. Condensate water spraying not only cleans the condenser surface of the condenser but also removes a significant amount of heat through water evaporation, significantly enhancing the condenser's heat dissipation effect and thus improving the air conditioner's energy efficiency ratio.

[0004] However, existing spraying technologies still have shortcomings. Commonly used spraying devices, such as simple perforated pipes or single-row nozzles, struggle to achieve uniform coverage of condensate across the entire condenser surface. When a water pump delivers condensate to the spraying device, the natural decrease in fluid pressure results in a higher flow rate near the inlet and a lower flow rate further away. This uneven spraying leads to heat dissipation "hot spots" on the condenser surface—some areas dissipate heat well while others dissipate poorly. This limits the overall improvement in heat dissipation efficiency and fails to fully realize the potential of condensate spraying. Furthermore, excessive localized water flow can cause splashing.

[0005] Therefore, how to design a spray device that can achieve uniform and comprehensive coverage of condensate on the condenser surface to maximize the heat dissipation efficiency and operational stability of kitchen air conditioners is a technical problem that urgently needs to be solved in this field.

[0006] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0007] In view of the problems pointed out in the background art, this application provides a kitchen air conditioner, which aims to solve the problems that the spray device cannot achieve uniform spraying and the condenser has poor heat dissipation effect.

[0008] To achieve the above-mentioned objectives, the present invention employs the following technical solution: In some embodiments of this application, a kitchen air conditioner is provided, comprising: A kitchen air conditioner includes: a housing; a refrigeration system disposed within the housing, comprising a compressor, a condenser, a throttling device, and an evaporator connected in sequence by refrigeration pipes; an evaporation-side water collection tray disposed below the evaporator for collecting condensate; a condensation-side water collection tray disposed below the condenser and communicating with the evaporation-side water collection tray; and a spray device for spraying condensate onto the surface of the condenser. The spray device includes: a water pump for driving the condensate; and a spray box disposed above the condenser, having a water distribution chamber extending along the length of the condenser and a water inlet chamber located on one side of the water distribution chamber; the water inlet chamber communicating with the middle of the water distribution chamber and having a water inlet; the bottom wall of the water distribution chamber having multiple rows of water distribution holes extending along its length, the diameter of each row of water distribution holes gradually increasing from the middle to both sides; and the bottom wall of the water distribution chamber being inclined downwards in a direction away from the water inlet chamber.

[0009] In some embodiments of this application, the spacing between adjacent rows of water distribution holes gradually decreases in the direction away from the water inlet chamber. This arrangement, combined with the increasing hole diameter design, further optimizes the water flow distribution density, achieves more uniform condensate coverage, and improves the overall heat exchange effect.

[0010] In some embodiments of this application, the evaporation-side water receiving pan is positioned higher than the condensation-side water receiving pan, allowing condensate in the evaporation-side water receiving pan to flow by gravity to the condensation-side water receiving pan; the water pump is located within the condensation-side water receiving pan and is used to draw condensate from the condensation-side water receiving pan to the spray box. This structure utilizes gravitational potential energy, achieving condensate transfer without additional power, thus simplifying the system structure.

[0011] In some embodiments of this application, the condensate drain pan is further provided with a drainage mechanism for discharging condensate water from the condensate drain pan. The drainage mechanism prevents excessive condensate water from overflowing, ensuring the safety of air conditioner use.

[0012] In some embodiments of this application, a drain hole is provided on the side wall or bottom wall of the condensate drain pan; the draining mechanism includes: a motor; a driving gear connected to the output shaft of the motor; and a sealing member movably disposed at the drain hole, having a driven gear meshing part that meshes with the driving gear; the motor drives the driving gear to rotate, and through the meshing transmission between the gear and the driven gear, the sealing member moves to open or close the drain hole. This mechanical draining mechanism has a stable structure and reliable operation, ensuring the timeliness and effectiveness of drainage.

[0013] In some embodiments of this application, a water level detection device is provided in the condensate side water receiving pan. This device is configured to control the drainage mechanism to open when the water level in the condensate side water receiving pan reaches a preset drainage threshold, thereby discharging the condensate water from the condensate side water receiving pan. The water level detection device enables intelligent monitoring of the water level and automatic drainage, preventing the risk of overflow.

[0014] In some embodiments of this application, in each row of water distribution holes, the difference in aperture between any two adjacent water distribution holes from the middle of the water distribution cavity to both sides is d1, and its value ranges from 0.1mm ≤ d1 ≤ 0.3mm. By limiting the aperture difference d1 to this optimized range, the pressure loss of water flow along the length of the water distribution cavity can be compensated most effectively, achieving the best uniformity of water flow distribution.

[0015] In some embodiments of this application, the center-to-center distance between two adjacent water distribution holes in each row is L, and its value ranges from 9.5mm ≤ L ≤ 10.5mm. Limiting the center-to-center distance L within this range ensures that the water film formed by the spray can cover the area continuously, avoiding both dry areas caused by excessive spacing and water flow interference and increased manufacturing costs caused by insufficient spacing.

[0016] In some embodiments of this application, the bottom wall of the water distribution cavity is inclined downwards at an angle α, with a value ranging from 1° ≤ α ≤ 3°. Limiting the inclination angle α within this range can effectively utilize gravity to assist the water flow to the far end of the water distribution cavity, preventing water accumulation at the front end, and can also avoid excessive water flow velocity due to excessive slope, which would disrupt the pressure balance inside the cavity and ensure uniform water distribution.

[0017] In some embodiments of this application, along the direction away from the water inlet chamber, the decreasing difference in the spacing between two adjacent water distribution holes is d2, and its value ranges from 2mm ≤ d2 ≤ 4mm. Limiting the decreasing difference in the spacing d2 to this optimized range forms an optimal match with the increasing hole diameter design, making the spray water volume per unit area tend to be uniform across the entire condenser surface.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are: In the kitchen air conditioner of the above embodiment, the increasing diameter of the water distribution holes from the center to both sides along the length of the water distribution chamber effectively compensates for water pressure attenuation, achieving a more consistent outflow rate for each water distribution hole along the length of the water distribution chamber. Simultaneously, in the width direction of the water distribution chamber, the inclined bottom wall utilizes gravity to balance the internal water pressure across the cross-section, ensuring that each row of water distribution holes receives a more stable and uniform water supply pressure. Through the synergistic effect of these two factors, a comprehensive and uniformly thick water curtain can be formed on the condenser surface, greatly improving heat dissipation efficiency. Furthermore, the inclined bottom wall structure facilitates the drainage of residual condensate from the water distribution chamber, preventing bacterial growth and blockage by dirt, thus ensuring the long-term stability and hygiene of the system.

[0019] Other features and advantages of this utility model will become clearer after reading the specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A perspective view of a kitchen air conditioner according to some embodiments is shown; Figure 2 An internal structural diagram of a kitchen air conditioner according to some embodiments is shown; Figure 3 A schematic diagram of a condensate spray system in a kitchen air conditioner according to some embodiments is shown; Figure 4 A schematic diagram of the condensate side water tray and spray device in a kitchen air conditioner according to some embodiments is shown; Figure 5 A perspective view of a spray box in a kitchen air conditioner according to some embodiments is shown; Figure 6 A front view of a spray box in a kitchen air conditioner according to some embodiments is shown; Figure 7 A schematic diagram of the internal structure of a spray box in a kitchen air conditioner according to some embodiments is shown; Figure 8 It shows Figure 6 AA section diagram; Figure 9 It shows Figure 4 The enlarged view at point I shows the state of the drainage mechanism with the drain hole closed. Figure 10The diagram shows the state of the drainage mechanism with the drainage hole open; Explanation of reference numerals in the attached figures: 100 - Casing; 210 - Evaporator; 220 - Condenser; 230 - Compressor; 240 - Condenser fan; 250 - Evaporator fan; 300-Evaporation side water tray; 400 - Condensate drain pan; 410 - Drain hole; 500-Spraying device; 510-Water pump; 520-Spraying box; 521-Lower cover of spraying box; 522-Upper cover of spraying box; Water inlet chamber A; Water distribution chamber B; 523-Water distribution hole; 524-Water inlet; 530-Water pipe; 600 - Drainage mechanism; 610 - Motor; 620 - Drive gear; 630 - Sealing component; 640 - Limiting component; 700-Water level detection device; 800 - Connecting pipe. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0028] like Figures 1-10 As shown, one embodiment of this application provides a kitchen air conditioner, which aims to solve the problems of the spray device being unable to achieve uniform spraying and the condenser having poor heat dissipation effect.

[0029] See Figure 1 and Figure 2 The kitchen air conditioner 1 mainly includes a casing 100 and a refrigeration system located inside the casing 100.

[0030] The housing 100 provides structural support and protection for the internal components of the entire air conditioner.

[0031] The refrigeration system is the core of the air conditioning cooling function, and mainly includes a compressor 230, a condenser 220, a throttling device and an evaporator 210 connected in sequence by refrigeration pipes.

[0032] Compressor 230 is the power core of the refrigeration system, responsible for compressing the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant.

[0033] The condenser 220 is a heat exchanger where the high-temperature, high-pressure gaseous refrigerant releases heat to the surrounding environment and condenses itself into a high-pressure, medium-temperature liquid refrigerant.

[0034] Throttling devices, such as capillary tubes or expansion valves, are responsible for throttling and reducing the pressure of high-pressure liquid refrigerant, turning it into a low-temperature, low-pressure liquid refrigerant, in preparation for subsequent evaporation and heat absorption.

[0035] Evaporator 210 is another heat exchanger where low-temperature, low-pressure liquid refrigerant evaporates, absorbing heat from the surrounding environment (such as kitchen air that needs to be cooled), and becomes low-temperature, low-pressure gaseous refrigerant, which is then drawn back into compressor 230 to complete a refrigeration cycle.

[0036] The casing 100 is equipped with an evaporator-side return air inlet and an evaporator-side air outlet. Indoor air is driven by the evaporator fan 250, drawn in from the evaporator-side return air inlet, flows over the surface of the evaporator 210, is cooled down, and then blown out from the evaporator-side air outlet c to provide cold air for the kitchen.

[0037] The casing 100 is also equipped with a condenser-side return air inlet. Air is driven by the condenser fan 240 and drawn in from the condenser-side return air inlet b. It flows over the surface of the condenser 220, carrying away the heat released by the refrigerant and forming a high-temperature heat dissipation airflow.

[0038] like Figure 3 As shown, during the refrigeration process, due to the very low surface temperature of the evaporator 210, water vapor in the air will condense to form condensate. In order to collect this condensate, an evaporator-side water collection tray 300 is provided directly below the evaporator 210.

[0039] Meanwhile, a condenser-side water receiving pan 400 is also provided below the condenser 220. The evaporator-side water receiving pan 300 and the condenser-side water receiving pan 400 are connected to each other through a connecting pipe 800 or a flow guiding structure.

[0040] In order to use the condensate produced by the evaporator 210 to enhance the heat dissipation of the condenser 220, this application also provides a spray device 500.

[0041] See Figure 3 and Figure 4 The spraying device 500 includes a water pump 510 and a spray box 520.

[0042] The water pump 510 provides power for the spraying and is used to deliver the condensate water pump 510 in the condensate side water receiving pan 400 or the evaporation side water receiving pan 300 to the spray box 520.

[0043] The spray box 520 is installed directly above the condenser 220, and its length is approximately matched with the length of the condenser 220.

[0044] like Figure 7 As shown, the interior of the spray box 520 is divided into two main parts: a water inlet chamber A and a water distribution chamber B. For example, the water inlet chamber A is... Figure 7 The blue area shown represents the water distribution chamber B. Figure 7 The green area shown.

[0045] The water inlet chamber A extends along the length of the condenser 220; and the water inlet chamber A is located on one side of the water distribution chamber B, and is provided with a water inlet 524. The water inlet 524 can be connected to the outlet of the water pump 510 through a water pipe 530.

[0046] The water inlet chamber A and the water distribution chamber B are connected at the middle position to achieve central water inlet.

[0047] The water inlet chamber A and the water distribution chamber B are arranged in a T-shape. The water inlet 524 is located on the bottom wall at the end away from the water distribution chamber B.

[0048] The water distribution chamber B is a key structure for achieving precise water flow distribution. Multiple rows of water distribution holes 523 are formed on the bottom wall of the water distribution chamber B along its length.

[0049] In each row of water distribution holes 523, the center-to-center distance between adjacent water distribution holes 523 is equal, but the size of the hole diameter of the water distribution hole 523 is not constant. Instead, the hole diameter gradually increases from the middle of the water distribution cavity B (near the point where it connects with the water inlet cavity A) to both sides (away from the center).

[0050] In addition, such as Figure 8 As shown, the bottom wall of the water distribution chamber B is not horizontal; instead, it slopes downwards from one side of the water inlet chamber A to the other, perpendicular to the length of the water distribution chamber B, i.e., the width of the water distribution chamber B. Figure 8 The tilt angle α in the middle.

[0051] The spray device 500 can achieve highly uniform spraying, and its working principle is through the coordinated control of water flow in two dimensions: First, pressure is compensated by a gradient design of the orifice diameter along the length of the water distribution chamber B. When the water pump 510 pumps condensate into the water distribution chamber B from the middle, a pressure gradient is naturally formed, with the highest pressure in the center and decreasing towards both sides. To solve this problem, this application sets the water distribution orifice 523 in the middle to be smaller, while the water distribution orifices 523 at both ends are set to be larger. This utilizes the varying orifice diameter to counteract the changing pressure: in the middle where the water pressure is higher, the smaller orifice diameter limits the water flow; while at the ends where the water pressure is lower, the larger orifice diameter increases the water flow. Thus, the outflow rate of each water distribution orifice 523 tends to be consistent along the length of the water distribution chamber B.

[0052] Secondly, in the width direction of the water distribution chamber B, the inclined bottom wall uses gravity to promote water flow distribution and balance the internal water pressure on the cross-section of the water distribution chamber B, so that each row of water distribution holes 523, whether near or far from the water inlet chamber A, can obtain a balanced water supply pressure.

[0053] Through the synergistic effect of the two dimensions mentioned above, the spray device 500 can ultimately form a water curtain of uniform thickness, achieving uniform spray coverage.

[0054] In addition, the sloping bottom surface ensures that residual condensate in the water distribution chamber B can be drained smoothly, effectively avoiding the problems of bacteria growth, odor, or blockage of the water distribution hole 523 due to water accumulation, thus ensuring the long-term stability and hygiene of the sprinkler system.

[0055] In the aforementioned kitchen air conditioner, the diameter of the water distribution holes 523, which increase from the center to both sides along the length of the water distribution chamber B, effectively compensates for water pressure attenuation, ensuring that the outflow of each water distribution hole 523 is nearly uniform along the length of the water distribution chamber B. Simultaneously, in the width direction of the water distribution chamber B, the inclined bottom wall utilizes gravity to balance the internal water pressure across the cross-section, allowing each row of water distribution holes 523 to receive a more stable and equal water supply pressure. Through the synergistic effect of these two factors, a comprehensive and uniformly thick water curtain can be formed on the surface of the condenser 220, greatly improving heat dissipation efficiency. Furthermore, the inclined bottom wall structure facilitates the drainage of residual condensate in the water distribution chamber B, preventing bacterial growth and blockage by dirt, thus ensuring the long-term stability and hygiene of the system.

[0056] In some embodiments, to achieve a more uniform spraying effect, the spacing between adjacent rows of water distribution holes 523 gradually decreases along the direction away from the water inlet chamber A. That is, along... Figure 7 In the width direction of the water distribution cavity B, the spacing between adjacent rows of water distribution holes 523 gradually decreases.

[0057] For example, such as Figure 7As shown, the water distribution chamber B has three rows of water distribution holes. The spacing between the two rows of water distribution holes closest to the water inlet chamber is L1, and the spacing between the two rows of water distribution holes furthest from the water inlet chamber is L2. The decreasing difference d2 = L1 - L2.

[0058] This is equivalent to increasing the number of water distribution holes 523 per unit area on the far side. This, combined with the design of increasing hole diameter of the water distribution holes 523, further optimizes the water flow distribution density, achieves more uniform condensate coverage, and improves the overall heat exchange effect.

[0059] In some embodiments, the relative positions of the two drip trays are designed. The evaporation-side drip tray 300 is installed spatially higher than the condensation-side drip tray 400. As shown, there is a height difference H between the evaporation-side drip tray 300 and the condensation-side drip tray 400.

[0060] Specifically, the drain outlet of the evaporation-side water receiving pan 300 should be higher in vertical height than the upper edge of the condensation-side water receiving pan 400 or its preset maximum operating water level.

[0061] In this way, the condensate collected in the evaporator-side water tray 300 can flow automatically and without power into the condensate-side water tray 400 through the connecting pipe 800 by gravity. This eliminates the need for a separate pump for water transfer, reducing manufacturing costs and potential failure risks.

[0062] The water pump 510 for spraying is installed in the condensate side water receiving pan 400. In this way, the condensate side water receiving pan 400 not only collects the newly generated condensate from the evaporator 210, but also receives and recovers the water dripping from the surface of the condenser 220 after spraying, forming a closed-loop circulation system.

[0063] In other embodiments, the system layout and component functionality can be configured differently: The water pump 510 can also be installed within the evaporator-side water collection pan 300. In this configuration, only newly generated condensate is actively pumped to the spray box 520 for spraying. At this time, the condensate-side water collection pan 400 is only responsible for collecting the spray water dripping from the condenser 220 and discharging it directly outside the machine through the drainage mechanism 600, without participating in the circulation. This open-loop system with one-time spraying may be suitable for specific applications with extremely high condensate production or special water quality requirements.

[0064] From a structural implementation perspective, the evaporator-side water tray 300 and the condenser-side water tray 400 are not necessarily two separate parts. In other embodiments, the evaporator-side water tray 300 and the condenser-side water tray 400 can also be configured as an integrated structure, achieving high and low positions and communication functions through internal partitions and guide channels. This simplifies the production and assembly process, eliminates the risk of water leakage at the connection between components, and makes more compact use of the limited space within the casing 100.

[0065] In some embodiments, in order to prevent excessive accumulation and overflow of condensate in the condensate side drip tray 400, a drainage mechanism 600 is also provided in the drip tray. The function of the drainage mechanism 600 is to discharge excess condensate to the outside of the housing 100 when needed.

[0066] In some embodiments, the specific structure of the drainage mechanism 600 is defined. A drain hole 410 is provided on the side wall or bottom wall of the condensate receiving tray 400.

[0067] The drainage mechanism 600 employs a mechanical structure driven by a motor 610, including a motor 610, such as a stepper motor 610.

[0068] A drive gear 620 is connected to the output shaft of the motor 610.

[0069] In conjunction with the drive gear 620 is a movable sealing element 630. This sealing element 630 can be a flat baffle or a cylindrical valve core.

[0070] The sealing member 630 is provided with a driven meshing part 631 that can mesh with the driving gear 620.

[0071] For example, if the sealing element 630 is a rotating baffle, then its driven gear 631 can be a sector gear. The motor 610 rotates the baffle through gear transmission, thereby opening and closing the drain hole 410.

[0072] This design features a compact structure, smooth transmission, and good sealing.

[0073] In some embodiments, a limiting member 640 is also provided on the condensate side drip tray, which is used to limit the movement of the sealing member. The limiting member 640 is located at the start and end positions of the rotational movement of the sealing member, thereby ensuring that the sealing member 630 can accurately switch between the open and closed positions, preventing problems such as poor sealing or component damage caused by excessive rotation.

[0074] In other embodiments, if the sealing member 630 is a linearly movable baffle, its driven meshing portion can be a rack structure. The motor 610 drives the drive gear 620 to rotate, and the gear drives the rack, causing the baffle to translate, thereby covering or opening the drain hole 410.

[0075] In some embodiments, a water level detection device 700 is also provided in the condensate side water tray 400 to automate drainage.

[0076] The water level detection device 700 can be of various types, such as a float switch, reed switch sensor, ultrasonic sensor, or capacitive sensor.

[0077] The water level detection device 700 and the motor 610 of the drainage mechanism 600 can be controlled by a controller.

[0078] The water level detection device 700 is configured to continuously monitor the real-time water level in the condensate drain pan 400. When the water level rises and reaches a preset maximum safe water level, i.e., a preset drainage threshold, it will output a signal to the controller.

[0079] Upon receiving the signal, the controller immediately starts the motor 610 of the drainage mechanism 600, driving the sealing component 630 to move and opening the drainage hole 410 to drain water. When the water level drops to a safe low level, the controller controls the motor 610 to rotate in the opposite direction again, closing the drainage hole 410.

[0080] In other embodiments, the water level detection device 700 can also be linked to the water pump 510. For example, a minimum operating water level can be set. When the water level is below this value, the controller will stop the water pump 510 from operating to prevent the water pump 510 from burning out due to lack of water, thereby improving the reliability and lifespan of the system.

[0081] In some embodiments, in each row of water distribution holes 523, from the middle to both sides, the difference in the diameter of any two adjacent water distribution holes 523 is d1, and its value ranges from 0.1mm to d1 to 0.3mm.

[0082] As shown in the figure, the diameters of two adjacent water distribution holes are D2 and D1, respectively. The difference in their diameters is d1 = D2 - D1.

[0083] If the orifice diameter difference d1 is too small (<0.1mm), the orifice diameter change is too gradual and insufficient to effectively compensate for the pressure loss along the flow path; if the orifice diameter difference d1 is too large (>0.3mm), the orifice diameter change is too drastic, which may lead to overcompensation for pressure, resulting in the water output at both ends being greater than that in the middle, which also disrupts the uniformity.

[0084] Therefore, limiting d1 to between 0.1mm and 0.3mm is the optimal balance range to ensure a uniform spraying effect.

[0085] In some embodiments, preferably, the value of d1 is 0.2 mm.

[0086] In some embodiments, within each row of water distribution holes 523, the center-to-center distance between two adjacent water distribution holes 523 is L, and its value ranges from 9.5mm ≤ L ≤ 10.5mm.

[0087] If the center spacing L is too small (<9.5mm), the water distribution holes 523 will be too dense, which will not only increase the difficulty and cost of processing, but also make it easy for adjacent water columns to merge or interfere with each other prematurely during the falling process. If the center-to-center spacing L is too large (>10.5mm), the water distribution holes 523 will be too sparse, and a continuous water film may not be formed between adjacent water columns, resulting in dry areas on the surface of the condenser 220 that are not wetted, thereby reducing the overall spray cooling effect.

[0088] Therefore, limiting L to between 9.5 mm and 10.5 mm is the optimal spacing to ensure the formation of a complete, continuous, and undisturbed water film.

[0089] In other embodiments, preferably, the value of L is 10 mm.

[0090] In some embodiments, the inclination angle of the bottom wall of the water distribution cavity B is α, and its value ranges from 1° to α to 3°.

[0091] If the tilt angle α is less than 1°, the slope is too gentle, and the effect of gravity assisting the water flow to the far end is not obvious; if the tilt angle α is greater than 3°, the slope is too steep, and the water flow will rush to the far end too quickly under the action of gravity, which will cause the actual water pressure at the far end to be higher than expected, the water output to be too large, and the uniformity of water distribution to be greatly reduced.

[0092] Therefore, a tilt angle of 1° to 3° is the best choice to ensure smooth water flow without disrupting the pressure distribution within the cavity.

[0093] In some embodiments, preferably, the value of α is 2°.

[0094] In some embodiments, along the direction away from the water inlet cavity A, the decreasing difference in the spacing between two adjacent water holes 523 is d2, and its value ranges from 2mm ≤ D2 ≤ 4mm.

[0095] For example, such as Figure 7 As shown, the water distribution chamber B has three rows of water distribution holes. The spacing between the two rows of water distribution holes closest to the water inlet chamber is L1, and the spacing between the two rows of water distribution holes furthest from the water inlet chamber is L2. The decreasing difference d2 = L1 - L2.

[0096] If the decrease difference d2 is less than 2mm, the change in the spacing between the rows is not obvious, and its effect on regulating the longitudinal distribution of water flow is limited. If the decrease difference d2 is greater than 4mm, the shrinkage of the spacing between the rows at the far end is too drastic, which may result in too much water per unit area at the far end and relatively insufficient water at the front end, which will also destroy the overall uniformity of spraying.

[0097] Therefore, limiting d2 to between 2 mm and 4 mm is the optimal solution to achieve a uniform distribution of water flow density.

[0098] In some embodiments, preferably, the value of d2 is 3 mm.

[0099] In some embodiments, the spray box 520 is formed by the snap-fitting of the lower cover 521 and the upper cover 522 of the spray box.

[0100] Water distribution holes 523 are provided on the lower cover 521 of the spray box. The water inlet 534 has a downwardly extending interface 5211 for easy connection to a water pipe.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0102] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A kitchen air conditioner, characterized in that, include: chassis; A refrigeration system, located inside the housing, includes a compressor, a condenser, a throttling device, and an evaporator connected in sequence by refrigeration pipes; An evaporation-side water collection tray, located on the lower side of the evaporator, is used to collect condensate. A condenser-side water tray is located on the lower side of the condenser and is connected to the evaporator-side water tray. A spraying device for spraying condensate onto the surface of the condenser; The spraying device is characterized in that it comprises: A water pump is used to drive the condensate. A spray box is located above the condenser and has a water distribution chamber extending along the length of the condenser and a water inlet chamber located on one side of the water distribution chamber. The water inlet chamber is connected to the middle of the water distribution chamber and has a water inlet; the bottom wall of the water distribution chamber has multiple rows of water distribution holes extending along its length direction, and the diameter of the multiple rows of water distribution holes gradually increases from the middle to both sides; and the bottom wall of the water distribution chamber is inclined downward along the direction perpendicular to the length of the water distribution chamber, away from the water inlet chamber.

2. The kitchen air conditioner according to claim 1, characterized in that, The spacing between adjacent rows of water distribution holes gradually decreases in the direction away from the water inlet cavity.

3. The kitchen air conditioner according to claim 1, characterized in that, The evaporation-side water receiving pan is positioned higher than the condensation-side water receiving pan so that the condensate in the evaporation-side water receiving pan can flow by gravity to the condensation-side water receiving pan; the water pump is located inside the condensation-side water receiving pan and is used to draw the condensate in the condensation-side water receiving pan to the spray box.

4. The kitchen air conditioner according to claim 1, characterized in that, The condensate side water receiving pan is also equipped with a drainage mechanism for discharging condensate water from the condensate side water receiving pan.

5. The kitchen air conditioner according to claim 4, characterized in that, The condensate drip tray has drainage holes on its side wall or bottom wall; the drainage mechanism includes: Electric motor; The drive gear is connected to the output shaft of the motor; A sealing element is movably disposed at the drain hole, and has a driven gear meshing part that meshes with the driving gear; the motor drives the driving gear to rotate, and through the meshing transmission between the gear and the driven gear meshing part, the sealing element moves to open or close the drain hole.

6. The kitchen air conditioner according to claim 4, characterized in that, The condensate side water receiving pan is equipped with a water level detection device, which is configured to control the drainage mechanism to open when the water level in the condensate side water receiving pan reaches a preset drainage threshold, so as to discharge the condensate water from the condensate side water receiving pan.

7. The kitchen air conditioner according to claim 1, characterized in that, In each row of water distribution holes, the difference in diameter between any two adjacent water distribution holes from the middle of the water distribution cavity to both sides is d1, and its value ranges from 0.1mm to 0.3mm.

8. The kitchen air conditioner according to claim 1, characterized in that, In each row of water distribution holes, the center-to-center distance between two adjacent water distribution holes is L, and its value ranges from 9.5mm to 10.5mm.

9. The kitchen air conditioner according to claim 1, characterized in that, The bottom wall of the water distribution chamber is inclined downward at an angle α in the direction away from the water inlet chamber, and its value ranges from 1° to 3°.

10. The kitchen air conditioner according to claim 2, characterized in that, Along the direction away from the water inlet chamber, the decreasing difference in the spacing between two adjacent water distribution holes is d2, and its value ranges from 2mm to 4mm.

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