Drain device and portable air conditioner

Abstract

This utility model discloses a drainage device and a portable air conditioner, relating to the field of portable air conditioning technology. It includes a first water receiving tray, a second water receiving tray, and a circulation mechanism. The first water receiving tray has a first outlet and a second outlet, allowing condensate from the first water receiving tray to drip onto the condenser through the first outlet, improving the condenser's heat dissipation. The condensate can be discharged from the second outlet into a water storage tank in the circulation mechanism. A water pump can then spray the condensate onto the condenser, further ensuring even distribution of condensate and accelerating evaporation, reducing water accumulation and thus decreasing the frequency of emptying the water container, thereby improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of portable air conditioning technology, and in particular to a drainage device and a portable air conditioner. Background Technology

[0002] In related technologies, current small portable air conditioners, in order to meet the demands of lightweight and compact portability, generally adopt a highly integrated casing structure. The limited internal space of the compact unit makes it difficult to improve airflow, thus hindering further improvements in the heat exchange efficiency of the condenser and evaporator, thereby limiting the cooling effect of the portable air conditioner. On the other hand, because portable air conditioners can be moved around easily, most users do not connect a drain pipe, resulting in a large amount of condensate accumulating inside the unit after prolonged operation. This requires frequent emptying of the water, leading to a poor user experience. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a drainage device and a portable air conditioner, which can improve heat exchange efficiency and reduce water pouring operations.

[0004] A drainage device according to a first aspect of the present invention includes:

[0005] A first water receiving tray and a second water receiving tray. An evaporator is installed on the first water receiving tray, and a condenser is installed on the second water receiving tray. The first water receiving tray is installed on top of the condenser and has a water receiving cavity. A first water outlet and a second water outlet are provided at the bottom of the water receiving cavity. The first water outlet extends along the width of the first water receiving tray and is located on top of the condenser, allowing condensate to drip into the condenser. The second water outlet is located to one side of the first water outlet.

[0006] The circulation mechanism includes a water storage tank, a water pump, and a spray pipe. The water pump is installed inside the water storage tank, the water storage tank is installed on the second water receiving tray, and the spray pipe is fixed to the bottom of the first water receiving tray. Condensate can be discharged from the second water outlet to the water storage tank, and the water pump can draw condensate and spray it onto the condenser through the spray pipe.

[0007] A drainage device according to an embodiment of the present utility model has at least the following beneficial effects:

[0008] This embodiment includes a first water receiving tray, a second water receiving tray, and a circulation mechanism. The first water receiving tray has a first outlet and a second outlet, allowing condensate from the first water receiving tray to drip onto the condenser through the first outlet, improving the condenser's heat dissipation and enhancing cooling performance. Simultaneously, condensate can drain from the second outlet into a storage tank in the circulation mechanism. This storage tank is equipped with a water pump, which sprays the condensate onto the condenser, further ensuring even distribution of condensate and improving heat dissipation. It also accelerates evaporation, reducing water accumulation and minimizing the need for emptying the water, thus improving the user experience.

[0009] According to an embodiment of the first aspect of the present invention, the bottom of the water receiving cavity has a recessed water collecting groove, the water collecting groove has two guide surfaces arranged in a V shape, and the first water outlet is located between the two guide surfaces.

[0010] According to an embodiment of the first aspect of the present invention, the circulation mechanism further includes a sealing plate, which is movably connected to the bottom outer wall of the first water receiving tray facing the condenser, and the sealing plate can open and close the first water outlet when it moves.

[0011] According to an embodiment of the first aspect of the present invention, the bottom of the water receiving cavity has a recessed water collecting trough, the second water outlet is located on the side wall of the water collecting trough, and the first water receiving plate is provided with a drainage channel, the second water outlet being located at the end of the drainage channel.

[0012] According to an embodiment of the first aspect of the present invention, a fan is provided on the side of the condenser facing the outer periphery of the second water receiving pan, and a baffle covering the outer wall of the condenser is provided on the outer periphery of the fan.

[0013] According to an embodiment of the first aspect of the present invention, the nozzle is disposed on the side of the condenser away from the fan, and the nozzle is provided with multiple branch pipes, which are bent and their ends face the condenser.

[0014] According to an embodiment of the first aspect of the present invention, the water storage tank is provided with an overflow hole on its outer periphery, which allows condensate to overflow from the water storage tank and drain into a second water receiving tray.

[0015] According to an embodiment of the first aspect of the present invention, the circulation mechanism further includes a humidity sensor and a temperature sensor, which are capable of detecting the humidity and temperature of the outside air.

[0016] According to a second aspect of the present invention, a portable air conditioner is provided, including the aforementioned drainage device, comprising:

[0017] The enclosure has a first air inlet and a first air outlet. The first air outlet has first air inlets on both sides. The fan is located on the side of the condenser facing the first air outlet.

[0018] The portable air conditioner according to the second aspect of the present invention has at least the following beneficial effects:

[0019] The portable air conditioner of this embodiment includes a housing with a first air inlet and a first air outlet. A fan is positioned on the side of the condenser facing the first air outlet to achieve convective heat exchange in the condenser, ensuring timely heat dissipation and guaranteeing good cooling performance. The portable air conditioner's drainage system includes a first drip tray, a second drip tray, and a circulation mechanism. The first outlet of the first drip tray is located on top of the condenser, allowing condensate to drip onto the condenser, improving its heat dissipation. Simultaneously, condensate drains from the second outlet into a storage tank in the circulation mechanism. A water pump sprays the condensate onto the condenser, further distributing it evenly and enhancing heat dissipation. This also accelerates evaporation, reducing water accumulation and minimizing the need for emptying the water, thus improving the user experience.

[0020] According to an embodiment of the second aspect of the present invention, the first water receiving tray can divide the inner cavity of the box into a first heat exchange chamber and a second heat exchange chamber, with the first heat exchange chamber located above the second heat exchange chamber.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is an isometric view of a drainage device according to an embodiment of the present utility model;

[0024] Figure 2 This is a first cross-sectional view of a drainage device according to an embodiment of the present utility model;

[0025] Figure 3 for Figure 2 A magnified view in the middle;

[0026] Figure 4 This is a second sectional view of a drainage device according to an embodiment of the present utility model;

[0027] Figure 5 for Figure 4 The enlarged view of B in the image;

[0028] Figure 6 This is an isometric view of the portable air conditioner in an embodiment of this utility model;

[0029] Figure 7 This is a cross-sectional view of the portable air conditioner in an embodiment of this utility model;

[0030] Figure 8 This is a flowchart of the drainage method in an embodiment of the present invention.

[0031] Figure label:

[0032] 100 housing; 101 first air inlet; 102 evaporator; 103 condenser; 104 fan; 105 baffle; 106 first air outlet; 107 second air outlet; 108 second air inlet; 109 exhaust fan;

[0033] First water receiving tray 110; water receiving cavity 111; water collecting trough 112; first water outlet 113; second water outlet 114; guide surface 115; drainage channel 116;

[0034] Second water receiving tray 120; Second level gauge 121; Water storage tank 122; Overflow hole 123;

[0035] 131 sealing plate; 132 nozzle; 133 branch pipe;

[0036] First heat exchange chamber 141; second heat exchange chamber 142. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0039] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] Reference Figure 1 According to a first aspect of this utility model, a drainage device is applied to a portable air conditioner. It is understood that the portable air conditioner has a housing 100, and the drainage device is installed inside the housing 100. The drainage device includes a first water receiving tray 110, a second water receiving tray 120, and a circulation mechanism. An evaporator 102 is mounted on the first water receiving tray 110, and a condenser 103 is mounted on the second water receiving tray 120. The first water receiving tray 110 is mounted on top of the condenser 103. (See reference...) Figure 6 It is understood that the side wall of the housing 100 has a first air inlet 101 and a first air outlet 106. The condenser 103 is located inside the housing 100 where the first air outlet 106 is located. A fan 104 is provided between the condenser 103 and the inner wall of the housing 100. When the fan 104 rotates, it can allow outside air to enter the housing 100 from the first air inlet 101 and be discharged from the first air outlet 106 through the condenser 103, thus carrying away the heat of the condenser 103.

[0042] Reference Figure 2 and Figure 3 It is understood that the first water receiving tray 110 has a recessed water receiving cavity 111, and the bottom of the water receiving cavity 111 has a first water outlet 113. The bottom wall of the water receiving cavity 111 slopes from the outer periphery of the water receiving cavity 111 towards the first water outlet, which is conducive to the collection and discharge of condensate. It is understood that the condensate discharged from the first water receiving tray 110 can fall into the second water receiving tray 120. It is understood that the first water outlet 113 extends along the width direction of the first water receiving tray 110 and is located at the top of the condenser 103, so that the condensate can drip into the condenser 103, realizing the use of the cooling capacity of the condensate to cool the condenser 103, which is beneficial to improving the heat dissipation effect and the cooling effect of the portable air conditioner. At the same time, it can increase the evaporation of condensate, reduce the water accumulation in the casing 100, thereby reducing the frequency of water emptying operations and improving the user experience.

[0043] Reference Figure 6 and Figure 7It is understandable that the housing 100 is also equipped with an exhaust fan 109, a second air inlet 108, and a second air outlet 107. The exhaust fan 109 is installed in the first water receiving tray 110, the second air outlet 107 is located at the top of the housing 100, and the position of the second air inlet 108 corresponds to the evaporator 102, so that outside air can enter the housing 100 through the second air inlet 108 and contact the evaporator 102 to achieve the cooling process, and the cooled air is discharged to the outside through the second air outlet 107. Understandably, since condensate evaporates upon contact with condenser 103 to produce water vapor, to prevent water vapor from returning to evaporator 102, the first drip tray 110 divides the inner cavity of housing 100 into a first heat exchange chamber 141 and a second heat exchange chamber 142. The first heat exchange chamber 141 is located above the second heat exchange chamber 142, the evaporator 102 is located in the first heat exchange chamber 141, and the condenser 103 is located in the second heat exchange chamber 142. This reduces airflow between the first heat exchange chamber 141 and the second heat exchange chamber 142, ensuring good cooling performance.

[0044] Furthermore, referring to Figure 2 and Figure 7 A fan 104 is positioned between the condenser 103 and the inner wall of the housing 100 where the first air outlet 106 is located. A baffle 105 covering the outer wall of the condenser 103 is provided around the fan 104. Simultaneously, along the length of the housing 100, the projected area of ​​the first air outlet 106 is smaller than the projected area of ​​the condenser 103. Therefore, the air in the second heat exchange chamber 142, guided by the baffle 105, is mainly discharged through the opening of the fan 104 in the housing 100, preventing outside air from entering the second heat exchange chamber 142 through the gaps around the fan 104 and causing steam to flow back to the first heat exchange chamber 141.

[0045] Understandably, the bottom of the water receiving cavity 111 has a recessed water collecting groove 112, which has two V-shaped guide surfaces 115. The first outlet 113 is located between the two guide surfaces 115. The guide surfaces 115 allow the condensate in the water receiving cavity 111 to quickly collect in the first outlet 113, thereby improving drainage efficiency and preventing water accumulation. Understandably, the first outlet 113 extends along the width of the first water receiving tray 110, which increases the coverage area of ​​the first outlet 113 on the condenser 103, thereby increasing the contact area between the condenser 103 and the condensate, thus improving the uniformity of the condensate distribution on the condenser 103, which is beneficial for the heat dissipation of the condenser 103 and the evaporation of the condensate.

[0046] Reference Figure 3 , Figure 4 and Figure 5It is understood that a second outlet 114 is provided at the bottom of the water receiving cavity 111, and the second outlet 114 is located on one side of the first outlet 113 along the width direction of the first water receiving tray 110. At the same time, the first water receiving tray 110 has a drainage channel 116, which extends along the width direction of the first water receiving tray 110. The second outlet 114 is provided at the end of the drainage channel 116, so that the condensate in the water collecting cavity can enter the second outlet 114 and flow through the drainage channel 116 to realize the drainage function.

[0047] It is understood that the circulation mechanism includes a water storage tank 122, a water pump (not shown in the figure), and a spray pipe 132. The water pump is installed inside the water storage tank 122, which is installed on the second water receiving tray 120. The spray pipe 132 is fixed to the bottom of the first water receiving tray 110 and located on the side of the condenser 103 away from the fan 104. The drainage channel 116 connects to the water storage tank 122, and the condensate can be discharged from the second outlet 114 through the drainage channel 116 to the water storage tank 122. The water pump can draw up the condensate and spray it onto the condenser 103 through the spray pipe 132. This increases the drainage efficiency of the condensate and the contact area between the condensate and the condenser 103, thereby increasing the heat dissipation efficiency of the condenser 103 and the evaporation efficiency of the condensate.

[0048] It is understood that the circulation mechanism is equipped with a movable sealing plate 131, which is slidably connected to the bottom outer wall of the first water receiving tray 110 facing the condenser 103. The first water receiving tray 110 is equipped with a driver (not shown in the figure) that can drive the sealing plate 131 to move. The driver uses a motor and gear rack transmission to drive the sealing plate 131 to move. When the sealing plate 131 moves, it can realize the opening and closing of the first water outlet 113. Furthermore, the nozzle 132 extends along the width direction of the first water receiving tray 110, and the nozzle 132 has multiple spaced branch pipes 133 along its length direction. The branch pipes 133 are bent and their ends face the condenser 103. The ends of the branch pipes 133 are provided with atomizing ports (not shown in the figure), which can make the sprayed condensate contact the surface of the condenser 103 over a larger area, thereby increasing the heat dissipation efficiency of the condenser 103 and the evaporation efficiency of the condensate.

[0049] Furthermore, the water storage tank 122 is provided with an overflow hole 123 on its outer periphery. The overflow hole 123 is located at the upper part of the water storage tank 122, allowing condensate to overflow from the water storage tank 122 and drain into the second drip tray 120. It is understood that, on the one hand, the water storage tank 122 can hold a portion of the condensate, increasing the total volume of condensate that the tank 100 can hold, and reducing the accumulation of condensate in the second drip tray 120, which helps reduce the frequency of water emptying operations for users. Furthermore, the water storage tank 122 is provided with a first level gauge (not shown in the figure), and the second drip tray 120 is provided with a second level gauge 121. The level gauge in the water storage tank 122 can detect the lowest level value in the water storage tank 122. When the condensate level in the water storage tank 122 is lower than the lowest level value, the water pump stops working.

[0050] Understandably, the circulation mechanism also includes a controller, a humidity sensor, and a temperature sensor. The controller is electrically connected to the humidity sensor, temperature sensor, water pump, and driver. The humidity sensor and temperature sensor are located on the outer wall of the enclosure 100, enabling them to detect the humidity and temperature of the outside air.

[0051] Reference Figure 6 According to an embodiment of the second aspect of this utility model, a portable air conditioner is provided, including the aforementioned drainage device. It is understood that the portable air conditioner includes all the technical features of a drainage device, and therefore the portable air conditioner at least incorporates all the beneficial effects of a drainage device.

[0052] Reference Figure 8 In this embodiment, a drainage method is also provided, applied to a portable air conditioner, comprising the following steps:

[0053] First, during the operation of the portable air conditioner, the temperature T and humidity H outside the casing 100 are measured by a temperature sensor and a humidity sensor, respectively. The controller receives the current temperature T and humidity H values ​​and determines whether the temperature T is greater than a temperature threshold T0 and whether the humidity H is greater than a humidity threshold H0. In this embodiment, the temperature threshold T0 satisfies: 26℃ ≤ T0 ≤ 28℃, and the humidity threshold H0 satisfies: 50% ≤ H0 ≤ 55%.

[0054] When the temperature T is not greater than the temperature threshold T0 and the humidity H is not greater than the humidity threshold H0 (i.e., T < 26℃ and H < 50%), the controller opens the first water outlet 113 and shuts off the water pump. At this time, the condensate in the first water tray 110 is discharged through the first water outlet 113 onto the condenser 103. Because the ambient air temperature and humidity are low, less condensate is produced during the operation of the portable air conditioner. Draining through the first water outlet 113 ensures that the condenser 103 is cooled and the condensate evaporates.

[0055] When the temperature T is not greater than the temperature threshold T0, and the humidity H is greater than the humidity threshold H0 (i.e., T < 26℃ and H > 55%), due to the high humidity in the environment, a large amount of condensate is generated during the cooling process. The large volume of water discharged through the first outlet 113 is insufficient to fully contact the surface of the condenser 103. Therefore, the controller moves the sealing plate 131 to close the first outlet 113, starts the water pump, and sprays the condensate onto the condenser 103. This achieves drainage while ensuring the condensate fully contacts the condenser 103, improving both the heat dissipation and evaporation effects of the condensate. It is understood that the first level gauge in the water storage tank 122 can detect the liquid level. When the liquid level is lower than a preset value, the water pump stops operating, and the first outlet 113 remains closed. Condensate can then enter the water storage tank 122 through the second outlet 114 and the drainage channel 116. When the liquid level in the water storage tank 122 is higher than the preset value, the water pump starts to perform the spraying function, preventing the water pump from running dry.

[0056] When the temperature T is greater than the temperature threshold T0, and the humidity H is not greater than the humidity threshold H0 (i.e., T > 28℃ and H < 50%), due to the high ambient temperature, a large amount of condensate is generated during the cooling process. The large volume of water discharged through the first outlet 113 is insufficient to fully contact the surface of the condenser 103. Therefore, the controller moves the sealing plate 131 to close the first outlet 113, starts the water pump, and sprays the condensate onto the condenser 103. This achieves drainage while ensuring the condensate fully contacts the condenser 103, improving both the heat dissipation and evaporation effects of the condensate. It is understood that the first level gauge in the water storage tank 122 detects the liquid level. When the liquid level is below a preset value, the water pump stops operating, and the first outlet 113 remains closed. Condensate can then enter the water storage tank 122 through the second outlet 114 and the drainage channel 116. When the liquid level in the water storage tank 122 is above the preset value, the water pump starts to perform the spraying function, preventing the pump from running dry.

[0057] When the temperature T is greater than the temperature threshold T0 and the humidity H is greater than the humidity threshold H0 (i.e., T > 28℃ and H > 55%), the ambient temperature and humidity are high, resulting in a large amount of condensate during the cooling process. To prevent water accumulation or overflow in the first drip tray 110, the first outlet 113 is opened, the water pump is started, and the condensate is sprayed onto the condenser 103. The first outlet 113 and the second outlet 114 simultaneously perform drainage functions. The condensate can come into contact with the condenser 103 through dripping and spraying, ensuring full contact between the condensate and the surface of the condenser 103, fully utilizing the cooling capacity of the condensate, thereby producing a good cooling effect and condensate evaporation effect.

[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A drainage device, characterized in that, include: A first water receiving tray and a second water receiving tray. An evaporator is installed on the first water receiving tray, and a condenser is installed on the second water receiving tray. The first water receiving tray is installed on top of the condenser and has a water receiving cavity. A first water outlet and a second water outlet are provided at the bottom of the water receiving cavity. The first water outlet extends along the width direction of the first water receiving tray and is located on top of the condenser, allowing condensed water to drip into the condenser. The second water outlet is located to one side of the first water outlet. The circulation mechanism includes a water storage tank, a water pump, and a spray pipe. The water pump is installed inside the water storage tank, the water storage tank is installed on the second water receiving tray, and the spray pipe is fixed to the bottom of the first water receiving tray. The condensate can be discharged from the second water outlet to the water storage tank, and the water pump can draw the condensate and spray it onto the condenser through the spray pipe.

2. A drainage device according to claim 1, characterised in that The bottom of the water receiving cavity has a recessed water collection trough, which has two V-shaped guide surfaces, and the first water outlet is located between the two guide surfaces.

3. A drainage device according to claim 1, wherein, The circulation mechanism also includes a sealing plate, which is movably connected to the bottom outer wall of the first water receiving tray facing the condenser. When the sealing plate moves, it can open and close the first water outlet.

4. A water drainage device according to claim 1, wherein The bottom of the water receiving cavity has a recessed water collection trough, the second water outlet is located on the side wall of the water collection trough, and the first water receiving tray is provided with a drainage channel, the second water outlet is located at the end of the drainage channel.

5. A drainage device according to claim 1, characterized in that, The condenser is equipped with a fan on the side facing the outer periphery of the second water receiving tray, and the outer periphery of the fan is equipped with a baffle covering the outer wall of the condenser.

6. A drainage device according to claim 5, characterized in that, The nozzle is located on the side of the condenser away from the fan, and the nozzle has multiple branch pipes, which are bent and have their ends facing the condenser.

7. A drainage device according to claim 1, characterized in that, The water storage tank is provided with an overflow hole on its outer periphery, which allows the condensate to overflow from the water storage tank and drain into the second water receiving tray.

8. A drainage device according to claim 1, characterized in that, The circulation mechanism also includes a humidity sensor and a temperature sensor, which can detect the humidity and temperature of the outside air.

9. A portable air conditioner, characterized in that, A drainage device comprising any one of claims 1 to 8, the drainage device comprising a fan, a first drip tray and a condenser, comprising: The housing has a first air inlet and a first air outlet, and the first air inlet is provided on both sides of the first air outlet. The fan is located on the side of the condenser facing the first air outlet.

10. The portable air conditioner according to claim 9, characterized in that, The first water tray can divide the inner cavity of the box into a first heat exchange chamber and a second heat exchange chamber, with the first heat exchange chamber located above the second heat exchange chamber.

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