Kitchen air conditioner

Abstract

The application relates to the technical field of air conditioners, and discloses a kitchen air conditioner. The kitchen air conditioner comprises a shell defining a containing cavity, the containing cavity comprising a first chamber and a second chamber; a refrigeration system comprising an evaporator, a compressor, a condenser and a fan, the evaporator and the fan being located in the first chamber, and the compressor and the condenser being located in the second chamber; a water pan located below the evaporator; and a drain groove located in the second chamber and connected with the water pan and used for draining water in the water pan. The water pan and the drain groove of the second chamber form a gradient drainage channel, so that the setting of the drainage system of the kitchen air conditioner is more flexible, the condensed water can be smoothly drained outside the kitchen air conditioner, the water accumulation problem caused by poor drainage is prevented, the drainage efficiency is improved, and the kitchen environment is kept clean and dry.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, for example, to a kitchen air conditioner. Background Technology

[0002] Currently, with the improvement of people's living standards, the comfort of the kitchen environment is receiving increasing attention. In the hot summer, the kitchen temperature is often high, making the cooking process very uncomfortable.

[0003] A kitchen air conditioner is disclosed in related technologies. The kitchen air conditioner includes core components such as an evaporator, a compressor, and a condenser. The kitchen air conditioner can cool the air, regulate the temperature inside the kitchen, and improve the user experience.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, kitchen air conditioners are generally installed in the kitchen. When the kitchen space is small, the limited space for the kitchen air conditioner and the limited space inside the kitchen air conditioner restrict the design of the drainage path, which can easily lead to malfunctions of the kitchen air conditioner or the growth of bacteria.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a kitchen air conditioner to improve drainage, thereby ensuring the air conditioner's efficiency, stability, and safety, and enhancing the user experience.

[0009] This disclosure provides a kitchen air conditioner, comprising: a housing defining a receiving cavity, the receiving cavity including a first chamber and a second chamber; and a refrigeration system including an evaporator, a compressor, a condenser, and a fan, the evaporator and fan being located in the first chamber, and the compressor and condenser being located in the second chamber.

[0010] Inside the chamber; a water tray, located below the evaporator; a drain trough, located in the second chamber, connected to the water tray, used to drain the water from the water tray.

[0011] Optionally, the kitchen air conditioner further includes: a partition located within the receiving cavity, dividing the receiving cavity into a first chamber and a second chamber; wherein a drain trough is located on the bottom wall of the second chamber and on the side of the compressor facing the partition.

[0012] Optionally, the kitchen air conditioner also includes: a water pump located in a drain trough for driving water out of the drain trough; and a controller electrically connected to both the water pump and the refrigeration system, configured to control the operation of the water pump and the refrigeration system.

[0013] Optionally, the kitchen air conditioner further includes: a first detection device located in the drain tank for detecting the water level in the drain tank; wherein, the controller is electrically connected to the first detection device, and when the water level in the drain tank is greater than or equal to a first water level threshold, the controller is configured to control the water pump to operate to discharge the water in the drain tank; when the water level in the drain tank is greater than or equal to a second water level threshold, the controller is configured to control the refrigeration system to stop operating, wherein the second water level threshold is higher than the first water level threshold.

[0014] Optionally, the first detection device is movably disposed in the drain trough, and the kitchen air conditioner further includes: a second detection device for detecting the temperature in the kitchen; wherein the second detection device and the compressor are electrically connected to the controller, and when the temperature in the kitchen is greater than or equal to a preset temperature and the load rate of the compressor is greater than or equal to a load threshold, the controller is configured to control the first detection device to move to a first position to reduce the second water level threshold, and control the water pump to increase its operating frequency to a set frequency.

[0015] Optionally, the kitchen air conditioner also includes: a drain pipe, one end of which is connected to a water tray and the other end of which is connected to a drain trough, wherein a water pump can drive water in the water tray to flow through the drain pipe to the drain trough; and a self-cleaning device, provided in the water tray, drain pipe and / or drain trough, for cleaning the water tray, drain pipe and / or drain.

[0016] Optionally, the kitchen air conditioner also includes: a third detection device for detecting the concentration of oil fumes in the kitchen, electrically connected to the controller; wherein both the self-cleaning device and the third detection device are electrically connected to the controller, and the controller is configured to control the operation of the self-cleaning device according to the concentration of oil fumes in the kitchen.

[0017] Optionally, the self-cleaning device includes a solenoid valve, an electric heating tape, and / or a backwashing device. The controller is configured to perform at least one of the following operations based on the concentration of cooking fumes in the kitchen: When the self-cleaning device includes a solenoid valve, the solenoid valve is located inside the drain pipe. When the refrigeration system and water pump are operating, and the concentration of cooking fumes in the kitchen is greater than or equal to a first preset concentration and less than a second preset concentration, the controller is configured to control the solenoid valve to open for a second preset duration at intervals of a first preset time. When the self-cleaning device includes an electric heating tape, when the refrigeration system and water pump are operating, and the concentration of cooking fumes in the kitchen is greater than or equal to a second preset concentration and less than a third preset concentration, the controller is configured to control the electric heating tape to open. When the self-cleaning device includes a backwashing device, the backwashing device is connected to the drain tank and the drip tray. When the concentration of cooking fumes in the kitchen is greater than a third preset concentration, the controller is configured to control the backwashing device to operate, so that water in the drain tank flows through the backwashing device to the drip tray for cleaning.

[0018] Optionally, the kitchen air conditioner also includes: a drain cover, located above the opening of the drain trough and detachably connected to the drain trough, with the other end of the drain pipe connected to the drain cover.

[0019] Optionally, the kitchen air conditioner further includes: a liquid storage tank located in the second chamber, at least a portion of which is located above a drain trough for collecting condensate from the outer surface of the liquid storage tank; and / or, inlet and outlet pipes connected to the evaporator, at least a portion of which is located above a drip tray and / or drain trough for collecting condensate from the outer surface of the inlet and outlet pipes.

[0020] The kitchen air conditioner provided in this embodiment can achieve the following technical effects:

[0021] In this embodiment of the kitchen air conditioner, the entire refrigeration system is located within the housing cavity, making it an integrated unit that eliminates the need for an outdoor unit, thus simplifying installation. Furthermore, by placing the evaporator and fan in the first chamber and the compressor and condenser in the second chamber, the refrigeration system is physically isolated, reducing interference between components, improving refrigeration efficiency, lowering energy consumption, and enhancing the operational stability and reliability of the kitchen air conditioner. A drip tray, located below the evaporator, collects condensate generated by the evaporator, preventing condensate buildup inside the air conditioner that could affect cooling performance and damage internal components. A drain trough, connected to the drip tray and located in the second chamber, forms a gradient drainage channel, allowing for more flexible drainage system design and ensuring smooth drainage of condensate outside the air conditioner. This prevents water accumulation due to poor drainage, improves drainage efficiency, and maintains a clean and dry kitchen environment.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0024] Figure 1 This is a partial structural schematic diagram of a kitchen air conditioner provided in an embodiment of this disclosure;

[0025] Figure 2 This is a partial structural schematic diagram of another kitchen air conditioner provided in an embodiment of this disclosure;

[0026] Figure 3 This is a partial structural schematic diagram of another kitchen air conditioner provided in an embodiment of this disclosure;

[0027] Figure 4 This is a partial structural schematic diagram of another kitchen air conditioner provided in an embodiment of this disclosure;

[0028] Figure 5 This is a partial structural schematic diagram of another kitchen air conditioner provided in an embodiment of this disclosure;

[0029] Figure 6 This is a schematic diagram of a kitchen air conditioner control method provided in an embodiment of this disclosure;

[0030] Figure 7 This is a schematic diagram of another kitchen air conditioner control method provided in an embodiment of this disclosure;

[0031] Figure 8 This is a schematic diagram of another kitchen air conditioner control method provided in an embodiment of this disclosure;

[0032] Figure 9 This is a schematic diagram of another kitchen air conditioner control method provided in an embodiment of this disclosure.

[0033] Figure label:

[0034] 10. Shell; 101. Receiving cavity; 1011. Air inlet; 1012. Air outlet; 102. First chamber; 103. Second chamber; 104. Partition; 105. Evaporator; 1051. Liquid inlet and outlet pipes; 106. Fan; 107. Compressor; 1071. Liquid storage tank; 108. Condenser; 109. Electrical control box; 20. Water tray; 21. Drain outlet; 201. Drain trough; 202. Water pump; 203. First detection device; 204. Drain pipe; 205. Drain pipe cover. Detailed Implementation

[0035] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0036] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for describing embodiments of this disclosure herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0037] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0038] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0039] Unless otherwise stated, the term "multiple" means two or more.

[0040] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0042] Combination Figures 1 to 5 As shown, this embodiment of the present disclosure provides a kitchen air conditioner, which includes a housing 10 and a refrigeration system. The housing 10 defines a receiving cavity 101, which includes a first chamber 102 and a second chamber 103. The refrigeration system includes an evaporator 105, a compressor 107, a condenser 108, and a fan 106. The evaporator 105 and the fan 106 are located in the first chamber 102, and the compressor 107 and the condenser 108 are located in the second chamber 103.

[0043] In this embodiment, the evaporator 105, compressor 107, condenser 108, and fan 106 of the refrigeration system are all located within the receiving cavity 101. This makes the kitchen air conditioner an integrated unit, eliminating the need for a separate outdoor unit and improving installation convenience. This also allows for more flexible installation in the kitchen; the air conditioner can be installed under cabinets or in the ceiling, or independently within the kitchen. The fan 106 drives airflow through the evaporator 105 for heat exchange before flowing into the kitchen to regulate the temperature. The evaporator 105 and fan 106 are located in the first chamber 102, which has a lower temperature and serves as the refrigeration chamber. The compressor 107 and condenser 108 are located in the second chamber 103. Both the compressor 107 and condenser 108 release heat during operation, resulting in a higher temperature in the second chamber 103. The first chamber 102 and the second chamber 103 can physically separate the cold airflow and the hot airflow, avoid or reduce the heat exchange between the two chambers, and ensure the normal operation of the components in each chamber, thereby ensuring cooling efficiency, improving the cooling effect, and enhancing the user experience.

[0044] Optionally, such as Figures 3 to 5 As shown, the kitchen air conditioner also includes a water tray 20 and a drain trough 201. The water tray 20 is located below the evaporator 105; the drain trough 201 is located in the second chamber 103 and is connected to the water tray 20 for draining water from the water tray 20.

[0045] In this embodiment, the drip tray 20 is used to collect the condensate generated by the evaporator 105. The water in the drip tray 20 can flow back into the drain trough 201 and then be discharged from the drain trough 201. Here, the drip tray 20 and the drain trough 201 form a gradient drainage system, which can not only increase the condensate holding capacity and prevent condensate from overflowing into the receiving cavity 101, but also improve the flexibility of the drain pipe 204 and the drain outlet, thereby improving drainage efficiency, preventing bacteria from growing inside the kitchen air conditioner, and ensuring the user experience and safety.

[0046] In addition, the drain trough 201 is located in the second chamber 103, so that the temperature of the condensate in the drain trough 201 is lower, which can cool the second chamber 103 and improve the heat dissipation effect of the compressor 107 and the condenser 108.

[0047] Optionally, the height of the drain trough 201 is lower than the height of the drip tray 20. This allows the condensate in the drip tray 20 to flow into the drain trough 201 under the influence of gravity.

[0048] Optionally, the kitchen air conditioner also includes a partition 104 located inside the receiving cavity 101, dividing the receiving cavity 101 into a first chamber 102 and a second chamber 103; wherein, a drain trough 201 is provided on the bottom wall of the second chamber 103 and is located on the side of the compressor 107 facing the partition 104.

[0049] In this embodiment, the partition 104 divides the receiving cavity 101 into a first chamber 102 and a second chamber 103, thus providing physical isolation. A drain trough 201 is located on the bottom wall of the second chamber 103, ensuring its height is lower than the water tray 20, allowing water from the water tray 20 to flow smoothly into the drain trough 201. The drain trough 201 is located on the side of the compressor 107 facing the partition 104, minimizing the distance between the drain trough 201 and the water tray 20, thereby reducing the length of the drain pipe 204 and preventing the drain pipe 204 from winding around the compressor 107, which would affect the installation and disassembly of the compressor 107.

[0050] Optionally, the evaporator 105 is located above the fan 106, and the water tray 20 is located below the evaporator 105, so that the water in the water tray 20 flows into the drain trough 201 under the action of gravity.

[0051] Optionally, the first chamber 102 has an air inlet 1011 and an air outlet 1012, located on the same side wall. The air inlet 1011 corresponds to and is connected to the fan 106, and the air outlet 1012 corresponds to and is connected to the evaporator 105. The fan 106 drives the ambient temperature airflow from the lower air inlet 1011 into the first chamber 102, where it exchanges heat with the evaporator 105 before flowing out from the upper air outlet 1012. With the air outlet 1012 and air inlet 1011 located on the same side wall, only one side needs to be reserved for connection to the outside during kitchen air conditioning installation, enabling both air intake and exhaust. Furthermore, the upper location of the air outlet 1012 facilitates the airflow range and distance of the cold air.

[0052] Optionally, the water receiving tray 20 is provided with a hollow structure, which connects the fan 106 and the evaporator 105 so that the airflow passing through the fan 106 flows through the hollow structure to the evaporator 105.

[0053] Optionally, the evaporator 105 is inclined, one end of the evaporator 105 is connected to the water receiving tray 20, the other end of the evaporator 105 is connected to the top wall of the first chamber 102, and the hollow structure is located below the evaporator 105.

[0054] Optionally, the water receiving tray 20 is provided with a drain outlet 21. The bottom wall of the water receiving tray 20 is concave to form a water outlet, and the drain outlet 21 is located in the water outlet. In this way, the water in the water receiving tray 20 can be collected in the water outlet and then flow out from the drain outlet 21.

[0055] Optionally, the bottom wall of the water receiving tray 20 includes a first wall surface and a second wall surface. The height of the first wall surface is greater than that of the second wall surface, and the drain outlet 21 is located on the second wall surface. In this way, the water on the first wall surface can flow to the second wall surface under the action of gravity and then flow out from the drain outlet 21, so as to facilitate more thorough drainage.

[0056] Optionally, the first wall surface is inclined toward the direction of the second wall surface, so that the condensate on the first wall surface can flow downward along the second wall surface.

[0057] Optionally, the kitchen air conditioner also includes a water pump 202 located in a drain trough 201 for driving water out of the drain trough 201.

[0058] In this embodiment of the present disclosure, the water pump 202 can provide driving force, and the water pump 202 can discharge the water in the drainage tank 201, and can also drive the water in the water receiving tray 20 to flow into the drainage tank 201.

[0059] Optionally, the kitchen air conditioner also includes a drain pipe 204, one end of which is connected to a drip tray 20, and the other end of which is connected to a drain trough 201. A water pump 202 can also drive water from the drip tray 20 to flow through the drain pipe 204 into the drain trough 201. Here, the drip tray 20 is connected to the drain trough 201 via the drain pipe 204, and the water pump 202 can drive the water from the drip tray 20 to flow more efficiently into the drain trough 201, and then out of the drain trough 201.

[0060] Optionally, the kitchen air conditioner includes a controller that is electrically connected to both the water pump 202 and the refrigeration system, and the controller is configured to control the operation of the water pump 202 and the refrigeration system.

[0061] In this embodiment, the water pump 202 and the refrigeration system are controlled by a controller, enabling the operation of both the refrigeration system and the water pump 202. The controller is electrically connected to the refrigeration system, meaning it is electrically connected to electrical equipment such as the compressor 107 and the fan 106. The controller can automatically control the starting and stopping of the compressor 107 and the fan, respectively.

[0062] Optionally, the kitchen air conditioner also includes a first detection device 203 located in the drain trough 201. The first detection device 203 is used to detect the water level in the drain trough 201. The controller is electrically connected to the first detection device 203. When the water level in the drain trough 201 is greater than or equal to a first water level threshold, the controller is configured to control the water pump 202 to operate to discharge the water in the drain trough 201. When the water level in the drain trough 201 is greater than or equal to a second water level threshold, the controller is configured to control the refrigeration system to stop operating. The second water level threshold is higher than the first water level threshold.

[0063] In this embodiment, the second water level threshold is higher than the first water level threshold. The first water level threshold is the minimum water level at which the water pump 202 operates, and the second water level threshold is the maximum safe water level of the drain tank 201. When the water level in the drain tank 201 is higher than the minimum water level threshold, the water supply is activated. This prevents the water pump 202 from running dry and allows water to be discharged from the drain tank 201. When the water level in the drain tank 201 rises above the second water level threshold, the refrigeration system is stopped, meaning the compressor 107 and other electrical components stop working. This increases the temperature of the evaporator 105, reducing or preventing further condensation. The water pump 202 continues to operate to discharge water from the drain tank 201, preventing water overflow and bacterial growth inside the kitchen air conditioner.

[0064] like Figure 6 As shown, this disclosure provides a method for controlling a kitchen air conditioner, including:

[0065] S11, The controller obtains the water level in the drainage tank.

[0066] S12. When the water level in the drainage tank is greater than or equal to the first water level threshold, the controller controls the water pump to work to discharge the water in the drainage tank.

[0067] S13. When the water level in the drain tank is greater than or equal to the second water level threshold, the controller controls the refrigeration system to stop working.

[0068] Optionally, the first detection device 203 may be a float, a capacitive water level sensor, or a photoelectric water level sensor.

[0069] Optionally, the first detection device 203 is movably disposed within the drain trough 201. The kitchen air conditioner also includes a second detection device for detecting the temperature in the kitchen. The second detection device and the compressor 107 are electrically connected to the controller. When the temperature in the kitchen is greater than or equal to a preset temperature and the load rate of the compressor 107 is greater than or equal to a load threshold, the controller is configured to control the first detection device 203 to move to a first position to lower the second water level threshold and control the water pump 202 to increase its operating frequency to a set frequency.

[0070] In this embodiment of the disclosure, when the kitchen temperature is greater than or equal to the preset temperature and the load rate of the compressor 107 is high, it indicates that the heat load of the external environment and the condensate generation rate increase. By lowering the second water level threshold (that is, the highest safe water level) and increasing the frequency of the water pump 202, the drainage response is accelerated, avoiding the risk of overflow caused by the instantaneous surge in condensate volume, thereby protecting components such as the compressor 107.

[0071] like Figure 7 As shown in the embodiments of this disclosure, a method for controlling a kitchen air conditioner is also provided, including:

[0072] S21, The controller obtains the temperature inside the kitchen.

[0073] S22. When the temperature in the kitchen is greater than or equal to the preset temperature and the compressor load rate is greater than or equal to the load threshold, the controller controls the first detection device to move to the first position to reduce the second water level threshold and controls the water pump to increase the operating frequency to the set frequency.

[0074] Optionally, there may be multiple first detection devices 203, including low water level detection devices and high water level detection devices. The high water level detection device may be an adjustable photoelectric water level sensor, a float-type sensor combined with an electric adjustment component, or an ultrasonic sensor combined with a drive mechanism, etc. The low water level detection device may be the same as or different from the high water level detection device.

[0075] Optionally, the kitchen air conditioner also includes a third detection device for detecting the concentration of cooking fumes in the kitchen; wherein the third detection device is electrically connected to the controller, and when the refrigeration system is working, the controller is configured to control the operation of the water pump 202 according to the concentration of cooking fumes in the kitchen.

[0076] In this embodiment, the kitchen air conditioner operates in the kitchen, where there is a lot of oily smoke. The oily smoke enters the kitchen air conditioner through the air inlet 1011 with the airflow. Under the filtration of the filter device at the air inlet 1011 and the centrifugal action of the fan 106, most of the oily smoke is filtered out. However, some oily smoke will still adhere to the evaporator 105. Then, the oily stains on the surface of the evaporator 105 will flow into the water collection pan 20 with the condensate. During the discharge of condensate, the water collection pan 20, the drain pipe 204, and the drain trough 201 may all become blocked. The water pump 202 is the main driving force for drainage. The water pump 202 adjusts its operation according to the concentration of oily smoke in the kitchen, which can ensure the drainage force and prevent oily stains from clogging the water collection pan 20, the drain pipe 204, or the drain trough 201.

[0077] Optionally, the kitchen air conditioner also includes a self-cleaning device, which is located on the water tray 20, drain pipe 204 and / or drain trough 201, for cleaning the water tray 20, drain pipe 204 and / or drain.

[0078] In this embodiment, some oil fumes will adhere to the evaporator 105, and the oil stains on the surface of the evaporator 105 will flow into the water collection pan 20 with the condensate. During the discharge of the condensate, the water collection pan 20, the drain pipe 204, and the drain trough 201 may all become blocked. Therefore, a self-cleaning device is provided in the water collection pan 20, the drain pipe 204, and / or the drain trough 201 to clean the oil stains and avoid blockage.

[0079] Optionally, both the self-cleaning device and the third detection device are electrically connected to the controller, which is configured to control the operation of the self-cleaning device based on the concentration of cooking fumes in the kitchen.

[0080] In this embodiment of the disclosure, the self-cleaning device operates according to the concentration of oil fumes, which can clean oil stains and other contaminants in a timely manner and avoid clogging.

[0081] Optionally, the self-cleaning device includes a solenoid valve, an electric heating tape, and / or a backwashing device. When the self-cleaning device includes a solenoid valve, the solenoid valve is located inside the drain pipe, so that the solenoid valve can generate pulsed water flow by controlling the opening and closing of the solenoid valve.

[0082] Optionally, when the self-cleaning device includes an electric heating tape, the electric heating tape is placed in a water receiving pan, drain pipe, and / or drain trough. In this way, the electric heating tape can be heated, which increases the viscosity of high-concentration oil fume condensate, significantly improves the fluidity of the oil-water mixture, avoids oil sludge caking caused by low temperature, and improves pipeline flow efficiency.

[0083] Optionally, the self-cleaning device includes a backwashing device that can backwash water from the drain tank into the drip tray, increasing the drainage capacity of the drip tray and cleaning it.

[0084] Optionally, when the self-cleaning device includes a solenoid valve, the solenoid valve is located inside the drain pipe 204. When the refrigeration system and water pump 202 are working, and the oil fume concentration in the kitchen is greater than or equal to a first preset concentration and less than a second preset concentration, the controller is configured to control the solenoid valve to open for a second preset duration at intervals of a first preset duration, where the second preset concentration is greater than the first preset concentration.

[0085] In this embodiment, when the oil fume concentration is between a first preset concentration and a second preset concentration, the start / stop strategy of the solenoid valve is dynamically matched to achieve an intermittent drainage mode through the solenoid valve. Compared with continuous drainage, this maintains the cleanliness of the inner wall of the drain pipe 204 by periodically impacting and rinsing the inner wall of the drain pipe 204, thus preventing oil stains from clogging the drain pipe 204.

[0086] Optionally, when the self-cleaning device includes an electric heating tape, the electric heating tape is installed on the water receiving pan 20, the drain pipe 204 and / or the drain trough 201. When the refrigeration system and the water pump 202 are working, and the concentration of oil fumes in the kitchen is greater than or equal to the second preset concentration and less than the third preset concentration, the controller is configured to control the electric heating tape to turn on.

[0087] In this embodiment, when the oil fume concentration further increases, the controller activates the electric heating tape, raising the temperature of the drain pipe 204 wall. This reduces the viscosity of the high-concentration oil fume condensate, significantly improving the fluidity of the oil-water mixture, preventing oil sludge from hardening due to low temperatures, and improving pipeline flow efficiency.

[0088] Optionally, when the self-cleaning device includes a backwashing device, the backwashing device connects the drain trough 201 and the water tray 20. When the oil fume concentration in the kitchen is greater than the third preset concentration, the controller is configured to control the backwashing device to work so that the water in the drain trough 201 flows through the backwashing device to the water tray 20 for cleaning. The third preset concentration is greater than the second preset concentration.

[0089] In this embodiment, when the oil fume concentration exceeds a third preset threshold, the controller activates the backwashing device, driving the water pump 202 to reversely send water stored in the drain tank 201 to the water receiving tray 20. Solid grease can be removed by high-pressure jetting, improving the removal rate of stubborn grease.

[0090] Optionally, when the self-cleaning device includes a backwashing device, the backwashing device includes a backwashing pipeline and a three-way valve. The backwashing pipeline connects the water receiving tray 20 and the drain trough 201, and the backwashing pipeline and the drain pipe 204 are connected in parallel. The drain trough 201 is connected to the backwashing pipeline, and a high-pressure flushing pump is provided between the drain trough 201 and the backwashing pipeline. The high-pressure flushing pump can drive the water in the drain trough 201 to flow into the water receiving tray 20 through the backwashing pipeline.

[0091] In this embodiment, the kitchen air conditioner is equipped with different self-cleaning devices. The operation of these devices is controlled according to the concentration of grease in the kitchen to improve cleaning efficiency and prevent clogging of the drip tray 20, drain pipe 204, and / or drain trough 201. In some optional embodiments, when the concentration of grease in the kitchen is low, the water pump 202 operates normally, and the self-cleaning devices do not need to be activated. When the concentration of kitchen grease rises to between a first preset concentration and a second preset concentration, the controller controls the solenoid valve to open intermittently. With the cooperation of the water pump 202, a pulsed water flow is formed, which can flush the inner walls of the drain pipe 204 and drain trough 201, preventing grease buildup. When the concentration of kitchen grease rises to between a second preset concentration and a third preset concentration, the electric heating tape is activated to increase the temperature of the drip tray 20, drain pipe 204, and / or drain trough 201, preventing grease from hardening at low temperatures. Optionally, when the electric heating tape is activated, the solenoid valve can also open intermittently to form a pulsed water flow, working in conjunction with the electric heating tape to achieve cleaning. When the concentration of cooking fumes in the kitchen rises above the third preset concentration, the controller activates the backwashing device to perform reverse flushing of the drain pipe 204 and the drip tray 20, further improving efficiency. At this time, the electric heating tape and solenoid valve can also operate, forming a multi-functional self-cleaning mode to enhance the self-cleaning effect.

[0092] like Figure 8 As shown in the embodiments of this disclosure, a method for controlling a kitchen air conditioner is also provided, including:

[0093] S31, The controller obtains the concentration of cooking fumes in the kitchen.

[0094] S32. When the refrigeration system and water pump are working, and the concentration of oil fumes in the kitchen is greater than or equal to the first preset concentration and less than the second preset concentration, the controller controls the solenoid valve to open for the second preset duration at intervals of the first preset duration.

[0095] S33. When the refrigeration system and water pump are working, and the concentration of oil fumes in the kitchen is greater than or equal to the second preset concentration and less than the third preset concentration, the controller controls the electric heating tape to turn on.

[0096] S34. When the concentration of oil fumes in the kitchen is greater than the third preset concentration, the controller controls the backwashing device to work so that the water in the drain tank flows through the backwashing device to the water tray for cleaning.

[0097] Optionally, the kitchen air conditioner also includes a drain pipe cover 205, which is located above the opening of the drain trough 201 and is detachably connected to the drain trough 201. The other end of the drain pipe 204 is connected to the drain pipe cover 205.

[0098] In this embodiment of the present disclosure, the drain pipe cover 205 provides an installation position for the connection between the drain pipe 204 and the drain trough 201, and can also cover the opening of the drain trough 201 to prevent impurities from entering the drain trough 201, and can also prevent water from splashing out of the drain trough 201 and affecting the operation of equipment such as the compressor 107.

[0099] Optionally, the drain cover 205 and the drain channel 201 are connected by a snap-fit.

[0100] Optionally, the drain pipe cover 205 includes a cover body and a snap-fit ​​part. The cover body has a connecting opening that connects to the other end of the drain pipe 204. The snap-fit ​​part fits against the outside of the drain trough 201 and snaps against the outer wall surface of the drain trough 201. The snap-fit ​​part has one of a protrusion and a groove, and the outer wall surface of the drain trough 201 has the other of a protrusion and a groove.

[0101] Optionally, there are multiple snap-fit ​​parts, which are spaced apart circumferentially along the cover, thereby improving connection stability.

[0102] Optionally, the drain cover 205 covers part of the drain trough 201, which facilitates the installation of a water pump 202 and a first detection device 203, etc., inside the drain trough 201.

[0103] Optionally, the drainage channel 201 is L-shaped, so that the drainage channel 201 can fit into the space inside the second chamber 103 and increase its capacity.

[0104] Optionally, the kitchen air conditioner also includes a liquid storage tank 1071 located in the second chamber 103, with at least a portion of the liquid storage tank 1071 located above a drain trough 201 for collecting condensate from the outer surface of the liquid storage tank 1071.

[0105] In this embodiment, the drain trough 201 can also collect condensate from the outer surface of the liquid storage tank 1071, preventing condensate from accumulating inside the kitchen air conditioner and causing bacterial growth.

[0106] Optionally, the kitchen air conditioner also includes an inlet / outlet pipe 1051, which is connected to the evaporator 105. At least a portion of the inlet / outlet pipe 1051 is located above the drip tray 20 and / or drain trough 201, which is used to collect condensate from the outer surface of the inlet / outlet pipe 1051.

[0107] In this embodiment of the present disclosure, when there is a refrigerant with a low temperature in the inlet / outlet pipe 1051, condensate can also be generated on its outer surface. The water receiving tray 20 and / or drain trough 201 correspond to the inlet / outlet pipe 1051, which can prevent the condensate on the surface of the inlet / outlet pipe 1051 from accumulating inside the kitchen air conditioner and causing bacteria to grow.

[0108] Optionally, the condenser 108 is a shell-and-tube heat exchanger. Using a shell-and-tube heat exchanger eliminates the need for an additional cooling fan 106, reducing the size of the kitchen air conditioner.

[0109] Optionally, the shell-and-tube heat exchanger includes an inner tube and an outer tube arranged sequentially from the inside to the outside, forming a fluid channel between the inner tube and the outer tube. The inner tube is used for the flow of cooling water, and the fluid channel is used for the flow of refrigerant. The kitchen air conditioner also includes a water outlet pipe, one end of the drain pipe 204 is connected to the water receiving pan 20, and the other end of the drain pipe 204 is connected to the drain trough 201. The water outlet pipe is connected to the outlet of the drain trough 201. The drain pipe 204 and / or the water outlet pipe are configured to exchange heat with the outer tube, or the drain pipe 204 and / or the water outlet pipe are connected to the inner tube.

[0110] In this embodiment, cooling water flows through the inner tube of the shell-and-tube heat exchanger, while refrigerant flows through the fluid channel. The cooling water is used to exchange heat and cool the refrigerant, ensuring the cooling efficiency of the kitchen air conditioner. Condensate collected in the drip tray 20 flows through the drain pipe 204 into the drain trough 201, and the water in the drain trough 201 is then discharged from the kitchen air conditioner through the outlet pipe. Thus, both the drain pipe 204 and the outlet pipe contain low-temperature condensate. This arrangement of the drain pipe 204 and / or the outlet pipe with the outer tube allows for heat exchange, enabling heat dissipation from the outer layer of the refrigerant. The inner layer of the refrigerant in the flow channel dissipates heat through the cooling water, and the outer layer of the refrigerant also dissipates heat through the condensate, further improving the heat dissipation efficiency of the refrigerant in the shell-and-tube heat exchanger and increasing the cooling efficiency. Alternatively, the drain pipe 204 and / or the outlet pipe can be connected to the inner tube, allowing condensate to flow directly into the inner tube to exchange heat with the refrigerant in the flow channel. The lower temperature of the condensate allows for more efficient heat exchange and saves external water resources.

[0111] Optionally, when the drain pipe 204 and / or the outlet pipe are heat exchanged with the outer pipe, the drain pipe 204 and / or the outlet pipe are attached to the outside of the outer pipe. Alternatively, the shell-and-tube heat exchanger may also include a heat exchange tube, which is sleeved on the outside of the outer pipe and surrounds the outer pipe to form a heat exchange layer. The heat exchange layer is connected to the drain pipe 204 and / or the outlet pipe.

[0112] In this embodiment, the drain pipe 204 and / or the outlet pipe can exchange heat by being attached to the outside of the outer pipe. This improves the heat exchange efficiency of the shell-and-tube heat exchanger without altering its structure. For example, the drain pipe 204 and / or the outlet pipe can be routed around the outside of the outer pipe to increase the contact area and enhance heat exchange. Furthermore, an additional heat exchange pipe can be fitted over the outside of the shell-and-tube heat exchanger, forming a heat exchange layer on the outside of the flow channel. Condensate flows into this heat exchange layer, significantly increasing the contact area and allowing heat exchange between the inner and outer layers of the refrigerant, thus improving the cooling efficiency of the shell-and-tube heat exchanger.

[0113] Optionally, the drain pipe 204 and / or the outlet pipe are connected to the inner pipe, which is also connected to an external water source. The kitchen air conditioner also includes an inlet three-way valve and a detection device. The first port of the inlet three-way valve is connected to the outlet of the drain pipe 204 and / or the outlet pipe, the second port of the inlet three-way valve is connected to an external water source, and the third port of the inlet three-way valve is connected to the inner pipe. The detection device is located on the outlet pipe and is used to detect the concentration of the target substance at the outlet of the drain pipe 204 and / or the outlet pipe. The inlet three-way valve and the detection device are both electrically connected to the controller. When the concentration of the target substance at the outlet of the drain pipe 204 and / or the outlet pipe is greater than or equal to a preset concentration, the controller is configured to control the inlet three-way valve to connect the second port and the third port. When the concentration of the target substance at the outlet of the drain pipe 204 and / or the outlet pipe is less than the preset concentration, the controller is configured to control the inlet three-way valve to connect the first port and the third port.

[0114] In this embodiment, when the detection device identifies that the concentration of the target substance at the outlet of drain pipe 204, such as oil or particulate matter, is greater than a preset concentration, the controller immediately switches the inlet three-way valve to introduce external water into the inner pipe through the second port, preventing oil from clogging the inner pipe. When the concentration of the target substance at the outlet of drain pipe 204 is less than the preset concentration, the inlet three-way valve switches to drain pipe 204 and / or outlet pipe, allowing condensate to exchange heat with the refrigerant, saving external water and making reasonable use of the condensate generated by evaporator 105.

[0115] like Figure 9 As shown in the embodiments of this disclosure, a method for controlling a kitchen air conditioner is also provided, including:

[0116] S41. The controller obtains the target concentration at the outlet of the drain pipe and / or water outlet.

[0117] S42. When the concentration of the target substance at the outlet of the drain pipe and / or the outlet pipe is greater than or equal to the preset concentration, the controller controls the inlet three-way valve to connect the second port and the third port.

[0118] S43. When the concentration of the target substance at the outlet of the drain pipe and / or the outlet water pipe is less than the preset concentration, the controller controls the inlet three-way valve to connect the first port and the third port.

[0119] Optionally, the kitchen air conditioner also includes a purification module, which is located in the drain trough 201, drain pipe 204 and / or water outlet pipe, for purifying the water in the drain trough 201, drain pipe 204 and / or water outlet pipe.

[0120] In this embodiment of the present disclosure, the purification module can purify the received condensate, so that when the purified condensate is reused, pipe blockage can be avoided or reduced, service life can be improved, and refrigeration efficiency can be increased.

[0121] Optionally, when the purification module is located in the drainage tank 201, the purification module includes electrodes and an aeration system. The electrodes are located in the drainage tank 201 and are used to decompose impurities in the drainage tank 201. The aeration system is used to fill the water in the drainage tank 201 with air to generate bubbles.

[0122] In this embodiment, electrochemical treatment and micro / nano aeration technology are used to form a dynamic synergistic purification system within the drainage tank 201. When a pulsed current is applied to the electrodes, an advanced electrochemical oxidation reaction is initiated on the anode surface, efficiently decomposing organic pollutants such as oils and surfactants in the water. Simultaneously, the micro-flocculation effect generated at the cathode captures suspended particles. The accompanying aeration system releases micro / nano bubbles, forming a large specific surface area at the gas-liquid interface, significantly improving pollutant mass transfer efficiency. During the bubble's ascent, oil droplets are carried to the surface through adsorption, forming a self-peeling scum layer on the water surface. Furthermore, the high dissolved oxygen level during aeration system operation effectively inhibits the growth of anaerobic bacteria, and combined with trace amounts of hypochlorous acid generated by the electrodes, continuous antibacterial disinfection is achieved. This rapidly and effectively removes oil, suspended solids, and some dissolved organic matter from the water, significantly improving water cleanliness, ensuring the quality of water entering or exchanging heat with the shell-and-tube heat exchanger, and extending the heat exchanger's service life.

[0123] The purification module of this embodiment removes impurities and oil from the water through electrodes and an aeration system, reducing the risk of pipe blockage, ensuring unobstructed drainage, and improving the overall system's operational stability and reliability.

[0124] Optionally, the aeration system includes an air pump, air delivery pipes, and aerators. The air pump provides compressed air and is the core power source of the entire aeration system. The air delivery pipes deliver the compressed air generated by the air pump to the aerators within the drainage tank 201. The aerators are key components of the aeration system, responsible for converting compressed air into microbubbles and releasing them into the water.

[0125] For example, the aerator can be a microbubble aerator, a medium-bubble aerator, or a hydraulic shear-type air diffuser.

[0126] Optionally, the aeration system also includes a filter device installed at the air inlet of the air pump to filter the air entering the air pump, removing dust, impurities, etc., to prevent clogging of the aerator and affect the aeration effect.

[0127] Optionally, the aeration system may also include valves for controlling airflow and switching on / off, facilitating adjustment of aeration intensity and equipment maintenance.

[0128] Optionally, the kitchen air conditioner also includes a spray device located in the drain trough 201, which is used to spray water from the drain trough 201 onto the outer surface of the shell-and-tube heat exchanger.

[0129] In this embodiment, the spraying device transports water from the drainage tank 201 to the spray nozzles via pipes. The spray nozzles evenly spray the water onto the outer surface of the shell-and-tube heat exchanger, forming a water film. The water film flows downwards under gravity, carrying away heat from the surface of the shell-and-tube heat exchanger, thus cooling it. Simultaneously, the spraying device also cleans the surface of the shell-and-tube heat exchanger, washing away oil and impurities, improving heat exchange efficiency, and extending the service life of the shell-and-tube heat exchanger. The spray nozzles of the spraying device are rationally designed to ensure uniform distribution of sprayed water, covering the entire surface of the heat exchanger and improving the cooling effect.

[0130] Optionally, the spraying device includes atomizing nozzles, and the number of atomizing nozzles is multiple. The multiple atomizing nozzles are spaced apart on the outer and inner sides of the shell-and-tube heat exchanger, and are used to atomize the water in the drain tank 201 and spray it onto the outer surface of the shell-and-tube heat exchanger.

[0131] In this embodiment of the disclosure, the spraying device uses an atomizing nozzle to atomize the water in the drainage tank 201 before it is placed on the shell-and-tube heat exchanger. Atomization can disperse the liquid into tiny particles, which significantly increases the surface area of ​​the liquid, thereby improving the uniformity of spraying and the heat exchange efficiency.

[0132] It is understandable that the sprinkler system can use ordinary nozzles.

[0133] Optionally, the kitchen air conditioner also includes an electrical control box 109, which is located above the shell-and-tube heat exchanger and / or drain trough 201.

[0134] In this embodiment, by integrating the electrical control box 109 above the shell-and-tube heat exchanger and / or drain trough 201, the box of the electrical control box 109 protects the internal electrical components, preventing moisture from entering the electrical control box and damaging the electrical components. At the same time, the cooling energy of the shell-and-tube heat exchanger and / or drain trough 201 can rise to the bottom of the electrical control box 109, thereby reducing the temperature of the electrical control box 109 and dissipating heat from it.

[0135] Optionally, the electrical control box has a first ventilation opening and a second ventilation opening. The first ventilation opening connects the outside to the inside of the electrical control box, and the second ventilation opening connects the outside to the first chamber. In this way, the cold air in the first chamber can enter the electrical control box to dissipate heat and ensure the normal operation of the electrical components inside the electrical control box.

[0136] Optionally, the fan can drive the airflow in the first chamber through the second vent to the inside of the electrical control box and then out through the first vent. This utilizes the fan of the kitchen air conditioner itself, while simultaneously driving the airflow inside the electrical control box, accelerating the heat dissipation of the electrical control box, and ensuring the normal operation of the electrical components inside the electrical control box.

[0137] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A kitchen air conditioner, characterized in that, include: The shell defines a receiving cavity, which includes a first chamber and a second chamber; The refrigeration system includes an evaporator, a compressor, a condenser, and a fan, with the evaporator and fan located in a first chamber and the compressor and condenser located in a second chamber. The drip tray is located below the evaporator. The drain trough, located in the second chamber, is connected to the water receiving tray and is used to drain the water from the water receiving tray.

2. The kitchen air conditioner according to claim 1, characterized in that, Also includes: A partition, located within the receiving cavity, divides the receiving cavity into a first chamber and a second chamber; The drainage trough is located on the bottom wall of the second chamber, on the side of the compressor facing the partition.

3. The kitchen air conditioner according to claim 1, characterized in that, Also includes: A water pump, located inside the drainage ditch, is used to drive the water out of the drainage ditch; The controller is electrically connected to both the water pump and the refrigeration system, and is configured to control the operation of the water pump and the refrigeration system.

4. The kitchen air conditioner according to claim 3, characterized in that, Also includes: The first detection device is located inside the drainage ditch and is used to detect the water level in the drainage ditch; The controller is electrically connected to the first detection device. When the water level in the drainage tank is greater than or equal to the first water level threshold, the controller is configured to control the water pump to work to discharge the water in the drainage tank. When the water level in the drainage tank is greater than or equal to the second water level threshold, the controller is configured to control the refrigeration system to stop working. The second water level threshold is higher than the first water level threshold.

5. The kitchen air conditioner according to claim 4, characterized in that, The first detection device is movable within the drain trough, and the kitchen air conditioner also includes: The second detection device is used to detect the temperature inside the kitchen; The second detection device and the compressor are both electrically connected to the controller. When the temperature in the kitchen is greater than or equal to the preset temperature and the load rate of the compressor is greater than or equal to the load threshold, the controller is configured to control the first detection device to move to the first position to reduce the second water level threshold and control the water pump to increase its operating frequency to the set frequency.

6. The kitchen air conditioner according to claim 3, characterized in that, Also includes: The drain pipe is connected to a water receiving tray at one end and to a drain trough at the other end. The water pump can drive the water in the water receiving tray to flow through the drain pipe into the drain trough. A self-cleaning device is installed on a water tray, drain pipe, and / or drain trough for cleaning the water tray, drain pipe, and / or drain.

7. The kitchen air conditioner according to claim 6, characterized in that, Also includes: The third detection device is used to detect the concentration of cooking fumes in the kitchen and is electrically connected to the controller. The self-cleaning device and the third detection device are both electrically connected to the controller, which is configured to control the operation of the self-cleaning device according to the concentration of oil fumes in the kitchen.

8. The kitchen air conditioner according to claim 7, characterized in that, The self-cleaning device includes a solenoid valve, an electric heating tape, and / or a backwashing device, and the controller is configured to perform at least one of the following operations based on the concentration of cooking fumes in the kitchen: When the self-cleaning device includes a solenoid valve, the solenoid valve is located inside the drain pipe. When the refrigeration system and water pump are working and the oil fume concentration in the kitchen is greater than or equal to the first preset concentration and less than the second preset concentration, the controller is configured to control the solenoid valve to open for the second preset duration every first preset time interval. When the self-cleaning device includes an electric heating tape, the controller is configured to control the electric heating tape to turn on when the refrigeration system and water pump are working and the oil fume concentration in the kitchen is greater than or equal to the second preset concentration and less than the third preset concentration. When the self-cleaning device includes a backwashing device, the backwashing device connects the drain trough and the water tray. When the concentration of oil fumes in the kitchen is greater than a third preset concentration, the controller is configured to control the backwashing device to work so that the water in the drain trough flows through the backwashing device to the water tray for cleaning.

9. The kitchen air conditioner according to claim 6, characterized in that, Also includes: A drain cover is located above the opening of the drain trough and is detachably connected to the drain trough. The other end of the drain pipe is connected to the drain cover.

10. The kitchen air conditioner according to any one of claims 1 to 9, characterized in that, Also includes: A liquid storage tank, located within the second chamber, with at least a portion of the tank positioned above a drainage trough for collecting condensate from the outer surface of the tank; and / or, The inlet and outlet pipes are connected to the evaporator, and at least part of the inlet and outlet pipes are located above the water receiving pan and / or drain trough, which are used to collect condensate on the outer surface of the inlet and outlet pipes.

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