Dehumidification automatic drainage system and dehumidifier thereof

Abstract

The application discloses a kind of dehumidification automatic drainage system and dehumidifier thereof, including shell, water pan and water tank, water pan is located water tank upper side, and is supported and installed in the bottom side of evaporator and condenser in shell;Water tank is detachably installed with pumping assembly for automatically pumping and discharging condensed water collected outside shell, the top of pumping assembly is provided with multifunctional socket for respectively interfacing with power plug in water tank installation slot and signal connector for detecting whether water tank is away from original position;Shell is also provided with drainage interfacing assembly for directly discharging condensed water collected in water pan or automatically discharging condensed water in water tank through external drainage hose;Through the respective interfacing connection of multifunctional socket and drainage interfacing assembly, effectively avoid the problem of dripping of drainage port and the problem of unreliable power supply connection of water pump contact, and the detachable pumping assembly facilitates the disassembly and repair of water pump failure.

Description

Technical Field

[0001] This invention relates to dehumidifier drainage technology, and more particularly to an automatic dehumidifier drainage system and a dehumidifier thereof. Background Technology

[0002] With the improvement of living standards and the continuous advancement of home appliance technology, consumers have increasingly higher requirements for the humanization of home appliances, and the degree of humanization of products often becomes the main factor for consumers to choose products.

[0003] In existing technology, dehumidifiers use different dehumidification modes depending on the usage environment, generally divided into two common dehumidification modes: continuous dehumidification and automatic dehumidification.

[0004] Continuous dehumidification mode requires constant operation, thus continuously producing condensate. This condensate typically needs to be automatically drained from the unit via an external drain pipe, meaning it operates in a continuous drainage mode, directly discharging the condensate into a floor drain or sewer. This mode is suitable for scenarios requiring long-term continuous operation, such as basements and warehouses with high humidity. The advantage is that it requires no manual intervention and can operate 24 hours a day. The disadvantages are that it requires the installation of a drain pipe in a relatively fixed location; if a water tank is used, the water in the tank often needs to be drained frequently, requiring frequent shutdowns and potentially causing condensate leaks, making it extremely inconvenient to use. Automatic dehumidification mode automatically stops operating when humidity is low. Therefore, it typically involves first collecting condensate in a water tank. Once the water level reaches the set standard, the water in the tank is manually drained, and the machine continues to run. In other words, automatic dehumidification mode uses an automatic drainage method; it automatically stops working when the water tank is full and prompts the user to empty it. The advantage of this method is its portability; it can be moved easily and is suitable for home or small spaces. The disadvantage is that it requires regular emptying, and forgetting to empty it may cause the water tank to overflow.

[0005] From the above, it is easy to see that continuous drainage is more suitable for fixed locations and high humidity environments, while automatic drainage is more suitable for scenarios that require flexible movement. The drainage process of the two drainage treatment modes is complicated, and dehumidifiers with automatic drainage function have a complicated structure. In addition, the operation required to switch from manual drainage to automatic drainage is complicated, which brings a lot of inconvenience to users.

[0006] Therefore, dehumidifiers with automatic drainage functions have emerged. Their condensate is first collected in a water tank, which is equipped with a drain pump. Turning on the drain pump will extract the liquid in the water tank to a high place and discharge it. However, the connection between the water outlet of the water tank and the drain pump is complicated and difficult to install and operate. For example, the patent publication number is CN103512180 A, the invention title is "Drainage device and dehumidifier having the same". In the drainage method, the drainage device adopts three drainage methods for switching: (1) When the external drain pipe is not connected, the condensate can be drained into the first water tank through the first drainage groove and the first drainage channel and then drained manually; (2) The external drain pipe connected to the first drainage channel can be connected at the first drainage joint to achieve drainage to a position lower than the drainage device. Similar to the drainage method of (1), the condensate is drained into the external drain pipe through the first drainage groove and the first drainage channel and then discharged; (3) The first drainage channel can be sealed with a sealing element, and the external drain pipe connected to the second drainage channel can be connected at the second drainage joint to achieve drainage to a position higher than the drainage device. The above drainage methods are automatic drainage methods. The first drainage channel is sealed with a sealing element so that the condensate in the first drainage groove accumulates and flows into the second water tank through the second drainage groove. Then, the water is pumped out from the second water tank by a water pump and the condensate is drained into the external drain pipe through the second drainage channel and then discharged.

[0007] In summary, existing dehumidifiers have complex pipe connection structures and require complicated operations when switching from manual to automatic drainage. They cannot effectively prevent leakage at the drain outlet, and there are issues with unreliable power supply connections to the water pump contacts. Furthermore, there are problems with how to safely connect the water pump placed inside the water tank and the need to disassemble the entire machine for repairs when the water pump malfunctions. These issues cause many inconveniences for users, and there is an urgent need for new technological inventions to solve these problems. Summary of the Invention

[0008] This invention provides an automatic dehumidification drainage system and dehumidifier, which is compatible with multiple drainage methods, automatically determines whether the drainage hose is connected or disconnected, effectively avoids leakage at the drain outlet and unreliable power supply connection of the water pump contacts, and the detachable water pump assembly facilitates disassembly and maintenance in case of pump failure.

[0009] The technical solution adopted by this invention to solve its technical problem is: An automatic dehumidification drainage system includes a housing, a water receiving tray, and a water tank. The water tank is inserted into a mounting groove on the front or back bottom side of the housing in a front-to-back direction. The water receiving tray is located on the upper side of the water tank and supports the evaporator and condenser installed on the bottom side of the housing. The water tank is detachably equipped with a water pumping component for automatically extracting and discharging the collected condensate outside the shell. The water pumping component is detachably installed on the water tank in the vertical direction and its top protrudes from the inner edge of the water tank. The top of the water pumping component is provided with a multi-functional socket that is connected to the power plug in the mounting slot and the signal connector for detecting whether the water tank has left its original position, respectively, along the horizontal direction of the water tank. The front or back of the housing is also provided with a drainage docking component that can directly discharge the condensate collected in the water receiving tray or automatically discharge the condensate collected in the water tank to the outside of the housing after being connected to the water pumping component in the water tank through an external drainage hose. The drainage docking component is provided with a photoelectric sensor for detecting that the external drainage hose passes through and is connected to the water pumping component. When the water tank is horizontally mounted in the mounting groove of the housing, and the top of the water pumping component on the water tank is connected to the power interface inside the housing, and the photoelectric sensor on the drainage connection component detects that the external drainage hose is inserted, when the condensate collected in the water receiving pan at the bottom of the evaporator and condenser is discharged into the water tank to a certain water level, the water pumping component automatically discharges the condensate in the water tank to the outside of the housing through the external drainage hose.

[0010] Preferably, the drainage connection assembly includes a first straight-out connector and a water outlet pipe. The first straight-out connector is attached to the lower side of the edge of the water receiving tray, and its port is located on the front of the housing. The water outlet pipe is located next to the first straight-out connector and is used for the drainage hose to pass through the outside of the housing and directly connect to the water pumping assembly in the water tank. The photoelectric sensor is located on the upper side of the water outlet pipe for detecting the passage of the external drainage hose. The first straight drain connector adopts a coaxial double-sleeve structure. The center of the first straight drain connector is provided with a straight drain pipe that directly communicates with the first straight drain port recessed on the water receiving pan for drainage and is used to connect to a corrugated pipe. A threaded drain pipe is coaxially fitted around the straight drain pipe for connecting to a large-diameter threaded pipe. When the threaded drain pipe is connected to the large-diameter threaded pipe, the condensate on the water receiving pan enters the large-diameter threaded pipe through the straight drain pipe and is discharged to the outside of the shell. The port of the straight-insertion drain pipe is also fitted with a rubber plug to seal the straight-insertion drain pipe when the first straight-inlet connector is not connected to a corrugated pipe or a large-diameter threaded pipe for drainage.

[0011] Preferably, the end face of the housing is further provided with a drainage cover to seal the first straight drain connector and the outlet pipe port.

[0012] Preferably, the photoelectric sensing unit includes a support base, a rocker arm, and a photoelectric sensor. The support base is installed on the upper side of the water outlet pipe. One end of the rocker arm is rotatably mounted on the support base, and the free end of the other end extends downward and automatically extends into the inner cavity of the water outlet pipe by its own weight. The photoelectric sensor is installed on the support base on the upper side of the free end of the rocker arm. When the drain hose passes through the water outlet pipe, it pushes up the free end of the rocker arm to block the signal sensing on both sides of the photoelectric sensor, and is used to provide feedback on the detection signal of the connection between the drain hose and the pumping assembly through the photoelectric sensor.

[0013] Preferably, relative to the first straight discharge port on the water receiving tray that directly penetrates the first straight discharge connector, a second drain port is also provided on the opposite side of the water receiving tray, with the water inlet end face higher than the first straight discharge port, for discharging condensate into the water tank, and a collection trough for collecting and storing condensate is formed around the second drain port.

[0014] Preferably, a secondary overflow trough is also provided next to the collecting trough corresponding to the second drain outlet, with its outer perimeter flush with the side wall of the collecting trough, for the overflow discharge of condensate when the second drain outlet is blocked. The corresponding secondary overflow trough is provided with a second-stage overflow port for discharging condensate into the water tank. A guide port communicating with the collecting trough is also provided on the side wall of the secondary overflow trough. A tertiary overflow trough is also provided next to the secondary overflow trough, lower than the side wall of the secondary overflow trough, for the overflow discharge of condensate when the second-stage overflow port is blocked. The tertiary overflow trough is provided with a third-stage overflow port for discharging condensate into the water tank, adjacent to the second-stage overflow port.

[0015] Preferably, the lower side of the water receiving tray is further provided with a funnel plate for receiving condensate from the second drain outlet, the second-stage overflow outlet, or the third-stage overflow outlet into the water tank. The funnel plate is provided with a drain hole for condensate to drain. The funnel plate is also provided with a leak-proof stop mechanism that self-locks and seals the bottom drain hole to prevent condensate from draining when the water tank is removed from the shell. When the water tank is inserted into the mounting groove on the bottom side of the shell in a lateral movement along the front-back direction, the touch action of the top of the water tank pushes the water stop valve on the leak-proof stop mechanism to move upward and release the seal on the bottom drain hole of the funnel plate.

[0016] Preferably, the leak-proof shut-off mechanism includes an inverted U-shaped self-locking component, a self-locking guide hole, a self-locking spring, and a self-locking seat. The self-locking guide hole is arranged side-by-side adjacent to the drain hole on the funnel plate. One side of the inverted U-shaped self-locking component forms a guide positioning post that slides through and is installed in the self-locking guide hole, with its bottom inclined cutting surface contacting the top of the water tank. The other end of the inverted U-shaped self-locking component forms a stop valve for sealing the drain hole on the funnel plate. The self-locking seat is correspondingly arranged directly above the self-locking guide hole. The self-locking spring is installed between the top side of the guide positioning post and the bottom side of the self-locking seat, and drives the other side of the inverted U-shaped self-locking component through its self-tensioning force. The normally closed stop valve on the side seals the drain hole on the funnel plate. The top of the corresponding water tank is provided with an inclined thrust surface that matches the inclined cutting surface at the bottom of the guide positioning column, which facilitates the water tank to smoothly push the guide positioning column to rise and move along the self-locking guide hole in the forward and backward feeding direction. When the water tank is inserted into the mounting groove of the housing in the forward and backward feeding direction, the inclined thrust surface on the top of the water tank contacts the bottom of the guide positioning column on the inverted U-shaped self-locking component. After overcoming the self-tensioning force of the self-locking spring, it pushes the inverted U-shaped self-locking component to move upward together, and drives the stop valve at the other end to move upward synchronously to release the self-locking seal on the drain hole on the funnel plate. The condensate in the water receiving tray enters the water tank directly through the drain hole for storage.

[0017] Preferably, the water pumping assembly includes a water pumping box and a water pump. The water pumping box is detachably installed on the water tank in the vertical direction. The top of the water pumping box is provided with a multi-functional socket with a power interface in the horizontal direction of the water tank. The water pump is installed at the bottom of the water pumping box and has a drain interface on the side wall of the water pumping box that extends out of the box and connects with the drain hose. The inner side wall of the water pumping box is provided with a water inlet hole that communicates with the inside of the water tank for water to enter the water tank.

[0018] Preferably, the water inlet of the water box is also equipped with a filter screen that can be removed and replaced to prevent the water pump from getting clogged.

[0019] Preferably, the water pump is a centrifugal water pump with a large drainage capacity, which effectively reduces the number of starts per unit cycle and increases the service life of the pump body.

[0020] Preferably, the multi-functional socket protruding from the top of the pumping assembly includes a socket box, two power supply spring pins connected to the positive and negative terminals of the pump, and two signal spring pins for detecting signals that the water tank leaves its original position. The two power supply spring pins are arranged side by side at the center of the socket box, and the two signal spring pins are symmetrically distributed on both sides of the two power supply spring pins. All the signal spring pins and power supply spring pins have springs installed at their rear ends for self-extension of their respective spring pins. The power plug in the corresponding mounting slot is provided with a male plug that mates with the socket box. The male plug has a copper post at its mating end face that mates with all the signal spring pins and the power supply spring pins respectively. The outer circumferential edge of the male plug that mates with the socket box is also fitted with a silicone sealing sleeve for sealing the mating point.

[0021] A dehumidifier includes a housing and a water tank, the water tank being inserted into a mounting groove in the housing along the front-to-back direction; the housing and the water tank are equipped with the aforementioned automatic dehumidification drainage system.

[0022] The beneficial effects of this invention are: This invention addresses the problems of existing household dehumidifiers with water pumps, where the pumps are mostly installed on non-moving parts. Repairing or replacing a malfunctioning pump requires disassembling the entire unit, leading to complex operations and difficult maintenance. Furthermore, after a period of operation, the discharged water often contains flocculent matter, scale, and other impurities, easily clogging the pump filter or causing pump failure, ultimately halting the entire unit's operation. Specifically, it addresses the issue of the non-removable and replaceable water pump on existing water tanks. This invention employs a modular design for the water pump assembly, allowing it to be installed as a replaceable accessory within the water tank. The water pump inlet also features a filter. Because the water tank and dehumidifier body are detachable, users can easily clean the pump filter in the water tank periodically. When the pump malfunctions, only the water pump assembly in the water tank needs replacement, eliminating the need for disassembly.

[0023] Furthermore, the drainage connection component allows for the direct discharge of condensate collected in the water tray or the automatic discharge of condensate collected in the water tank to the outside of the casing via a drain hose and a pumping component. Alternatively, the water tank can be directly pumped out for drainage. This allows the dehumidifier to be drained manually, automatically via the pumping component, or by directly draining condensate from the water tray. Additionally, the pumping component can be replaced when its lifespan expires, enabling free switching between multiple modes.

[0024] Regarding the control and power supply of the external water pump when using the pumping assembly for drainage, a photoelectric sensor is installed on the outlet pipe to detect the connection of the external drain hose. When the water pump is connected to the drain hose, the hose must pass through the outlet pipe. At this point, the photoelectric sensor sends the connection information to the dehumidifier's main board, indicating that the water pump is connected. The dehumidifier then activates the pump on the pumping assembly to achieve continuous dehumidification and high-lift drainage. As for powering the pump, a multi-functional socket on top of the pumping assembly connects to the power plug in the mounting slot and the signal connector used to detect whether the water tank has moved from its original position. When the water tank is pushed into the mounting slot, the pump power cord automatically connects via the power supply module, eliminating the need for user intervention.

[0025] Meanwhile, addressing the issue of dehumidifiers becoming clogged with debris, dust, and dirt during prolonged use, and the resulting impact on the pump's ability to extract condensate, this invention's drip tray employs a multi-stage overflow drainage design compatible with various drain pipe connection schemes. The first straight drain connector uses a coaxial double-sleeve structure, with a corrugated pipe for external connection at the center for a straight-insertion drain pipe. The outer casing of this straight-insertion drain pipe is fitted with a threaded drain pipe for external connection to a large-diameter threaded pipe. When the first straight drain connector is not in use, it is sealed with a rubber stopper. The water flows directly to the second drain outlet, located at the front of the water tray, which drains directly into the water tank. This drain outlet is designed with a three-stage overflow structure: the first stage drains directly, while the second and third stages prevent the first stage from failing due to dust blockage. This effectively solves the problem of condensate entering the water tray and causing blockage of the drainage path caused by dust contact between the evaporator and condenser. The water tray is designed with multi-stage drainage and is compatible with different drain pipe connection schemes, which improves the reliability and stability of drainage while also diversifying the drainage methods.

[0026] In addition, a leak-proof stop mechanism is provided on the lower side of the water receiving tray to self-lock and stop the bottom drain hole, preventing condensate from leaking when the water tank is pulled out of the shell. When the water tank is pulled out of the mounting groove on the bottom side of the shell in the front-back direction, the inclined thrust surface on the top of the water tank disengages from the bottom end of the guide positioning column on the leak-proof stop mechanism. The self-locking spring simultaneously pushes the water stop valve at the other end of the inverted U-shaped self-locking part to move down, simultaneously sealing the drain hole on the funnel plate, preventing condensate from leaking from the water receiving tray into the mounting groove of the water tank.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the dehumidifier of the present invention; Figure 2 This is a three-dimensional schematic diagram of the internal structure of the dehumidifier of the present invention after the outer shell is removed; Figure 3 This is a front-view three-dimensional structural diagram of the water receiving tray and its lower side stiffening plate in the dehumidifier of the present invention; Figure 4 This is a top view schematic diagram of the water receiving tray and its lower side stiffening plate in the dehumidifier of the present invention; Figure 5 yes Figure 4 A magnified structural diagram of part A in the diagram; Figure 6 This is a cross-sectional structural diagram of the drainage system on the dehumidifier of the present invention; Figure 7 yes Figure 6 A magnified structural diagram of part B in the diagram; Figure 8 This is an enlarged structural schematic diagram of the water stop valve on the inverted U-shaped self-locking component in this invention; Figure 9 This is a three-dimensional structural diagram of the water receiving tray and water tank assembled in this invention; Figure 10 This is a three-dimensional structural diagram of the dehumidifier in this invention, showing the water receiving tray and its lower side stiffeners assembled with a drain hose. Figure 11 This is an enlarged cross-sectional view of the photoelectric sensing unit in this invention; Figure 12 This is a three-dimensional structural diagram of the water pumping component and the water tank in the dehumidifier of the present invention when they are assembled and connected. Figure 13 This is an enlarged three-dimensional structural diagram of the pumping component in this invention; Figure 14 This is a three-dimensional structural diagram of the dehumidifier mounting slot in this invention; Figure 15 This is a three-dimensional structural diagram of the water tank in this invention; Figure 16 This is a cross-sectional enlarged structural diagram of the multi-functional socket during assembly and docking in this invention.

[0029] in, Figure 7 The arrows in the diagram indicate the direction of condensate flow. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, "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. Terms such as "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention.

[0032] Furthermore, if the terms "first," "second," and "third" are used only to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0033] Furthermore, in the description of this invention, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be reasonably determined in conjunction with the specific content of the technical solution.

[0034] In this embodiment, the automatic dehumidification drainage system is assembled in the dehumidifier. Therefore, in the specific embodiment, the automatic dehumidification drainage system will not be described separately, but will be uniformly described according to its overall assembly and connection relationship with the dehumidifier.

[0035] A type of dehumidifier, such as Figures 1 to 5As shown, the device includes a housing 1, a water tray 2, and a water tank 3. The water tank 3 is inserted into a mounting groove 4 on the bottom side of the back of the housing 1, moving laterally in the front-back direction. The water tray 2 is located above the water tank 3 and supports the bottom side of the evaporator 5 and condenser 6 installed in the housing 1. An electrical box and a compressor are installed in the space below the water tray 2 on the opposite side of the water tank 3. A water pumping assembly 7 is detachably installed in the water tank 3 to automatically extract and discharge the collected condensate outside the housing 1. The water pumping assembly 7 is detachably installed on the water tank 3 in the vertical direction, with its top protruding relative to the inner edge of the water tank 3. The top of the water pumping assembly 7 is provided with a power plug in the mounting groove 4 and a signal connector for detecting whether the water tank 3 has left its original position, which are respectively connected and cooperated with. The front of the housing 1 is also provided with a mounting groove 4 for the water tray 2. The collected condensate is directly discharged, and the condensate collected in the water tank 3 is automatically discharged to the outside of the housing 1 after being connected to the water pumping assembly 7 in the water tank 3 through the external drain hose 9. The draining assembly 10 is equipped with a photoelectric sensor 11 for detecting that the external drain hose 9 is inserted and connected to the water pumping assembly 7. The water tank 3 is laterally moved and assembled in the mounting groove 4 of the housing 1. When the top of the water pumping assembly 7 on the water tank 3 is connected to the power interface on the inside of the housing 1 and the photoelectric sensor 11 on the draining assembly 10 detects that the external drain hose 9 is inserted, when the water receiving tray 2 on the bottom side of the evaporator 5 and condenser 6 collects condensate and discharges it into the water tank 3 to a certain water level, the water pumping assembly 7 automatically discharges the condensate in the water tank 3 to the outside of the housing 1 through the external drain hose 9.

[0036] Continue as Figures 1 to 5As shown, the drainage connection assembly 10 includes a first straight drain connector 100 and a water outlet pipe 101. The first straight drain connector 100 is attached to the lower side of the front edge of the water receiving tray 2, and its port is located on the front of the housing 1. The water outlet pipe 101 is located beside the first straight drain connector 100 and is used for the drainage hose 9 to pass through the outside of the housing 1 and directly connect to the water pumping assembly 7 in the water tank 3. The photoelectric sensor 11 is located on the upper side of the water outlet pipe 101 to detect the passage of the externally connected drainage hose 9. The first straight drain connector 100 adopts a coaxial double-sleeve structure, and the center of the first straight drain connector 100 is provided with a first straight drain port 12 recessed on the water receiving tray 2 for drainage. An external corrugated pipe sleeve connects to a straight-insertion drain pipe 100a. A threaded drain pipe 100b for connecting to a large-diameter threaded pipe is coaxially fitted around the straight-insertion drain pipe 100a. When the threaded drain pipe 100b is sleeved with the large-diameter threaded pipe, the condensate on the water receiving pan 2 enters the large-diameter threaded pipe through the straight-insertion drain pipe 100a and is discharged outside the housing 1. A rubber plug 13 is also inserted at the port of the straight-insertion drain pipe 100b to seal the straight-insertion drain pipe when the first straight drain connector 100 is not connected to the corrugated pipe or the large-diameter threaded pipe for drainage. A drain cover 14 is also hinged to the front end face of the housing 1 to seal the port of the first straight drain connector 100 and the outlet pipe 101.

[0037] like Figure 2 , Figure 3 , Figure 9 and Figure 10 As shown, the photoelectric sensing unit 11 includes a bracket 110, a rocker 111, and a photoelectric sensor 112. The bracket 110 is installed on the upper side of the water outlet pipe 101. One end of the rocker 111 is rotatably installed on the bracket 110 via a pin, and the free end of the other end extends downward and automatically extends into the inner cavity of the water outlet pipe 101 by its own weight. The photoelectric sensor 112 is installed on the bracket 110 on the upper side of the free end of the rocker 111. When the drain hose 9 passes through the water outlet pipe 101, it pushes up the free end of the rocker 111 to block the signal sensing on both sides of the photoelectric sensor 112. The photoelectric sensor 112 can then send a detection signal of the connection between the drain hose 9 and the water pumping assembly 7 to the main board of the dehumidifier.

[0038] like Figures 2 to 9As shown, relative to the first straight drain port 12 on the water receiving tray 2 that is directly connected to the first straight drain connector 100, a second drain port 15 is also provided on the opposite side of the water receiving tray 2, with the water inlet end face higher than the first straight drain port 12, for discharging condensate into the water tank 3. A collection tank 16 for collecting and storing condensate is formed around the second drain port 15. A secondary overflow trough 17, flush with the side wall of the collecting trough 16, is provided next to the second drain outlet 15 for the overflow of condensate when the second drain outlet 15 is blocked. The secondary overflow trough 17 is provided with a second-stage overflow port 18 for the discharge of condensate to the water tank 3. A guide port 160 communicating with the collecting trough 16 is also provided on the side wall of the secondary overflow trough 17. A tertiary overflow trough 19, lower than the side wall of the secondary overflow trough 17, is provided next to the secondary overflow trough 17 for the overflow of condensate when the second-stage overflow port 18 is blocked. A third-stage overflow port 20 for the discharge of condensate to the water tank 3 is provided in the tertiary overflow trough 19 adjacent to the second-stage overflow port 18. When the first drain connector 100 is not used for drainage, the drain outlet is sealed with rubber plug 13, and the water flows directly to the second drain outlet 15. The second drain outlet 15 is located at the front end of the water tray 2 and drains directly into the water tank 3. This drain outlet is designed with a three-stage overflow structure. The first stage drains directly, while the second-stage overflow outlet 18 and the third-stage overflow outlet 20 prevent the previous stage from failing due to dust blockage. This effectively solves the problem of condensate entering the water tray 2 and causing blockage of the drainage path caused by dust contact between the evaporator 5 and the condenser 6. The water tray 2 is designed with multi-stage drainage and is compatible with different drain pipe connection schemes, which improves the reliability and stability of drainage while also diversifying the drainage methods.

[0039] Continue as Figures 2 to 9As shown, a funnel plate 21 is also provided on the lower side of the water receiving tray 2 to receive the condensate discharged from the second drain outlet 15, the second overflow outlet 18 and the third overflow outlet 20 into the water tank 3. The funnel plate 21 is provided with a drain hole 210 for the condensate to drain. The funnel plate 21 is also provided with a leak-proof stop mechanism 22 that self-locks and stops the drain hole on the bottom side to prevent the condensate from draining when the water tank 3 is pulled out of the shell 1. When the water tank 3 is inserted into the mounting groove 4 on the bottom side of the shell 1 by moving laterally in the front-back direction, the water stop valve 220b on the leak-proof stop mechanism 22 is pushed up by the touch action of the top of the water tank 3 to release the blockage of the drain hole 210 on the bottom side of the funnel plate 21. The leak-proof shut-off mechanism 22 includes an inverted U-shaped self-locking component 220, a self-locking guide hole 221, a self-locking spring 222, and a self-locking seat 223. The self-locking guide hole 221 is arranged side by side with the drain hole 210 on the funnel plate 21. One side of the inverted U-shaped self-locking component 220 forms a guide positioning post 220a that is slidably sleeved in the self-locking guide hole 221 and whose bottom inclined cutting surface contacts the top of the water tank 3. The other end of the inverted U-shaped self-locking component 220 forms a stop valve 220b for sealing the drain hole 210 on the funnel plate 21. The self-locking seat 223 is correspondingly arranged directly above the self-locking guide hole 221. The self-locking spring 222 is installed between the top side of the guide positioning post and the bottom side of the self-locking seat 223 and drives the stop valve 220 on the other side of the inverted U-shaped self-locking component 220 through its self-tensioning force. Valve 220b normally closes to seal the drain hole 210 on the funnel plate 21. The top of the corresponding water tank 3 is provided with an inclined thrust surface 30 that matches the inclined cutting surface at the bottom of the guide positioning column 220a, so that the water tank 3 can smoothly push the guide positioning column to rise and move along the self-locking guide hole 221 in the front and rear feed direction. When the water tank 3 is inserted into the mounting groove 4 of the housing 1 in the front and rear feed direction, the inclined thrust surface 30 at the top of the water tank 3 contacts the bottom of the guide positioning column 220a on the inverted U-shaped self-locking component 220. After overcoming the self-tensioning force of the self-locking spring 222, it pushes the inverted U-shaped self-locking component 220 upward and drives the stop valve 220b at the other end to move upward synchronously to release the self-locking seal on the drain hole 210 on the funnel plate 21. The condensate in the water receiving tray 2 enters the water tank 3 directly through the drain hole 210 for storage. When the water tank 3 is moved laterally in the front-back direction and removed from the mounting groove 4 on the bottom side of the housing 1, the inclined thrust surface 30 on the top of the water tank 3 disengages from the bottom end of the guide positioning post 220a on the anti-leakage stop mechanism 22. The self-locking spring 222 simultaneously pushes the water stop valve 220b at the other end of the inverted U-shaped self-locking part 220 to move down, simultaneously sealing the drain hole 210 on the funnel plate 21, preventing condensate on the water receiving plate 2 from leaking into the mounting groove 4 of the water tank 3.

[0040] like Figures 12 to 16As shown, the water pumping assembly 7 includes a water pumping box 70 and a water pump 71. The water pumping box 70 is detachably installed on the water tank 3 in the vertical direction. A multi-functional socket 8 with a power interface is provided on the top of the water pumping box 70 in the horizontal direction of the water tank 3. The water pump 71 is installed at the bottom of the water pumping box 70 and has a drain interface 72 on the side wall of the water pumping box 70 that extends out of the box and connects with the drain hose 9. The water pump 71 is provided with an inlet hole 73 on the inner side wall of the water pumping box 70, which communicates with the inside of the water tank 3 and allows water to enter the water tank 3. A filter screen 74 is also installed at the inlet hole 73 of the water pumping box 70 to prevent the water pump from clogging and is detachable and replaceable. The water pump 71 is a centrifugal water pump with a large drainage capacity, which effectively reduces the number of starts per unit cycle and increases the service life of the pump body.

[0041] like Figure 16 As shown, the multi-functional socket 8 protruding from the top of the water pump assembly 7 includes a socket box 80, two power supply spring pins 81 connected to the positive and negative terminals of the water pump 71 respectively, and two signal spring pins 82 for detecting the signal of the water tank 3 leaving its original position. The two power supply spring pins 81 are arranged side by side at the center of the docking point of the socket box 80, and the two signal spring pins 82 are symmetrically distributed on both sides of the two power supply spring pins 81. All the signal spring pins 82 and power supply spring pins 81 have springs 83 installed at their rear ends for self-extension of their respective spring pins. The power plug in the corresponding mounting slot 4 is provided with a male plug 23 that mates with the socket box 80. The docking end face of the male plug 23 is provided with copper pillars 24 that mate with all the signal spring pins 82 and power supply spring pins 81 respectively. The circumferential outer edge of the male plug that mates with the socket box 80 is also fitted with a silicone sealing sleeve 25 for sealing the docking point. In use, the multi-functional socket 8 on the top of the water pump assembly 7 connects with the power plug in the mounting slot 4 and the signal connector used to detect whether the water tank 3 has left its original position after moving back and forth along the horizontal direction of the water tank 3. When the water tank 3 is pushed into the mounting slot 4 of the water tank 3, the water pump power cord is automatically connected through the power supply module, without the need for the user to plug in the water pump.

[0042] In this embodiment, the water pump assembly 7 adopts a modular design, allowing it to be installed on the water tank 3 as an accessory. The water pump is designed as a detachable and replaceable component placed inside the water tank 3, and a filter screen is installed at the pump's inlet. Since the water tank 3 and the dehumidifier body are detachable, it is convenient for users to regularly clean the water pump filter screen of the water pump assembly 7 in the water tank 3. When the water pump malfunctions, only the water pump assembly 7 inside the water tank 3 needs to be replaced, without needing to disassemble the entire machine for repair or replacement. The drainage connection assembly 10 allows the condensate collected in the water tray 2 to be discharged directly or automatically discharged from the water tank 3 to the outside of the housing 1 via the drain hose 9 and the water pump assembly 7. Alternatively, the water tank 3 can be directly pulled out for drainage. This allows the dehumidifier to be drained manually, automatically via the water pump assembly 7, or by directly draining the condensate from the water tray 2. Furthermore, the water pump assembly 7 can be replaced when its lifespan expires, enabling free switching between multiple function modes.

[0043] A detection device is installed on the outlet pipe 101 to detect the externally connected drain hose 9, which passes through the photoelectric sensor 11 and is activated by a photoelectric sensor switch. When the water pump is connected to the external drain hose 9, the drain hose 9 must pass through the outlet pipe 101. At this time, the photoelectric sensor switch on the photoelectric sensor 11 will feed back the assembly information of the drain hose 9 to the main board of the dehumidifier, thereby determining that the water pump has been connected to the drain hose 9. The dehumidifier can then start the water pump on the pumping assembly 7 to drain water, achieving continuous dehumidification and high-lift drainage.

[0044] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. All equivalent changes made in accordance with the shape, structure and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic dehumidification drainage system, characterized in that, The device includes a housing, a water receiving tray, and a water tank. The water tank is laterally inserted into a mounting groove on the front or back bottom side of the housing. The water receiving tray is located on the upper side of the water tank and supports the evaporator and condenser installed on the bottom side of the housing. The water tank is detachably equipped with a water pumping assembly for automatically extracting and discharging the collected condensate outside the housing. The water pumping assembly is detachably installed on the water tank in the vertical direction and its top protrudes from the inner edge of the water tank. The top of the water pumping assembly is provided with a multi-functional socket that is connected to a power plug in the mounting slot and a signal connector for detecting whether the water tank has left its original position, respectively, along the lateral direction of the water tank. The front or back of the housing is also provided with a drainage docking component that can directly discharge the condensate collected in the water receiving tray or automatically discharge the condensate collected in the water tank to the outside of the housing after being connected to the water pumping component in the water tank through an external drainage hose. The drainage docking component is provided with a photoelectric sensor for detecting that the external drainage hose passes through and is connected to the water pumping component. When the water tank is horizontally mounted in the mounting groove of the housing, and the top of the water pumping component on the water tank is connected to the power interface inside the housing, and the photoelectric sensor on the drainage connection component detects that the external drainage hose is inserted into place, when the condensate collected in the water receiving tray at the bottom of the evaporator and condenser is discharged into the water tank to a certain water level, the water pumping component automatically discharges the condensate in the water tank to the outside of the housing through the external drainage hose. The drainage connection assembly includes a first straight-out connector and a water outlet pipe. The first straight-out connector is attached to the lower side of the edge of the water receiving tray, and its port is located on the front of the housing. The water outlet pipe is located next to the first straight-out connector and is used for the drainage hose to pass through the outside of the housing and directly connect to the water pumping assembly in the water tank. The photoelectric sensor is located on the upper side of the water outlet pipe to detect the passage of the external drainage hose. The photoelectric sensing unit includes a support base, a rocker plate, and a photoelectric sensor. The support base is installed on the upper side of the water outlet pipe. One end of the rocker plate is rotatably mounted on the support base, and the free end of the other end extends downward and automatically extends into the inner cavity of the water outlet pipe by its own weight. The photoelectric sensor is installed on the support base on the upper side of the free end of the rocker plate. When the drain hose passes through the water outlet pipe, it pushes up the free end of the rocker plate to block the signal sensing on both sides of the photoelectric sensor. It is used to provide feedback on the detection signal of the connection between the drain hose and the pumping assembly through the photoelectric sensor.

2. The automatic dehumidification drainage system according to claim 1, characterized in that: The first straight drain connector adopts a coaxial double-sleeve structure. The center of the first straight drain connector is provided with a straight drain pipe that directly communicates with the first straight drain port recessed on the water receiving pan for drainage and is used to connect to a corrugated pipe. A threaded drain pipe is coaxially fitted around the straight drain pipe for connecting to a large-diameter threaded pipe. When the threaded drain pipe is connected to the large-diameter threaded pipe, the condensate on the water receiving pan enters the large-diameter threaded pipe through the straight drain pipe and is discharged to the outside of the shell. The port of the straight-insertion drain pipe is also fitted with a rubber plug to seal the straight-insertion drain pipe when the first straight-inlet connector is not connected to a corrugated pipe or a large-diameter threaded pipe for drainage.

3. The automatic dehumidification drainage system according to claim 2, characterized in that: The end face of the housing is also provided with a drainage cover to seal the first straight drain connector and the outlet pipe port.

4. The automatic dehumidification drainage system according to claim 2, characterized in that: In contrast to the first straight discharge port on the water receiving tray that directly connects to the first straight discharge connector, a second drain port is also provided on the opposite side of the water receiving tray, with its inlet end face higher than that of the first straight discharge port, for discharging condensate into the water tank. A collection trough for collecting and storing condensate is formed around the second drain port.

5. The automatic dehumidification drainage system according to claim 4, characterized in that: A secondary overflow trough, flush with the side wall of the collecting trough, is provided next to the second drain outlet for the overflow of condensate when the second drain outlet is blocked. The secondary overflow trough has a second overflow outlet for discharging condensate into the water tank. A guide port communicating with the collecting trough is also provided on the side wall of the secondary overflow trough. A tertiary overflow trough, lower than the side wall of the secondary overflow trough, is provided next to the secondary overflow trough for the overflow of condensate when the second overflow outlet is blocked. The tertiary overflow trough has a third overflow outlet for discharging condensate into the water tank, located adjacent to the second overflow outlet.

6. The automatic dehumidification drainage system according to claim 5, characterized in that: The lower side of the water receiving tray is also provided with a funnel plate for receiving condensate from the second drain outlet, the second-stage overflow outlet, or the third-stage overflow outlet into the water tank. The funnel plate is provided with a drain hole for condensate to drain. The funnel plate is also provided with a leak-proof stop mechanism that self-locks and seals the bottom drain hole to prevent condensate from leaking when the water tank is removed from the shell. When the water tank is inserted into the mounting groove on the bottom side of the shell in a lateral movement along the front-back direction, the touch action of the top of the water tank pushes the water stop valve on the leak-proof stop mechanism to move upward and release the seal on the bottom drain hole of the funnel plate.

7. The automatic dehumidification drainage system according to claim 6, characterized in that: The leak-proof shut-off mechanism includes an inverted U-shaped self-locking component, a self-locking guide hole, a self-locking spring, and a self-locking seat. The self-locking guide hole is arranged side-by-side adjacent to the drain hole on the funnel plate. One side of the inverted U-shaped self-locking component forms a guide positioning post that slides through the self-locking guide hole and whose bottom inclined cutting surface contacts the top of the water tank. The other end of the inverted U-shaped self-locking component forms a stop valve for sealing the drain hole on the funnel plate. The self-locking seat is correspondingly positioned directly above the self-locking guide hole. The self-locking spring is installed between the top side of the guide positioning post and the bottom side of the self-locking seat, and its self-tensioning force drives the other side of the inverted U-shaped self-locking component. The normally closed stop valve seals the drain hole on the funnel plate. The top of the corresponding water tank is provided with an inclined thrust surface that matches the inclined cutting surface at the bottom of the guide positioning column, which facilitates the smooth movement of the water tank along the front and rear feed direction by pushing the guide positioning column up along the self-locking guide hole. When the water tank is inserted into the mounting groove of the housing along the front and rear feed direction, the inclined thrust surface at the top of the water tank contacts the bottom of the guide positioning column on the inverted U-shaped self-locking component. After overcoming the self-tensioning force of the self-locking spring, it pushes the inverted U-shaped self-locking component upward and drives the stop valve at the other end to move upward synchronously to release the self-locking seal on the drain hole on the funnel plate. The condensate in the water receiving tray enters the water tank directly through the drain hole for storage.

8. The automatic dehumidification drainage system according to claim 1, characterized in that: The water pumping assembly includes a water pumping box and a water pump. The water pumping box is detachably installed on the water tank in the vertical direction. The top of the water pumping box is provided with a multi-functional socket with a power interface in the horizontal direction of the water tank. The water pump is installed at the bottom of the water pumping box and has a drain interface on the side wall of the water pumping box that extends out of the box and connects with the drain hose. The inner side wall of the water pumping box is provided with a water inlet hole that communicates with the inside of the water tank for water to enter the water tank.

9. The automatic dehumidification drainage system according to claim 8, characterized in that: The water inlet of the water pump box is also equipped with a filter screen that can be removed and replaced to prevent the water pump from getting clogged.

10. The automatic dehumidification drainage system according to claim 8, characterized in that: The water pump is a centrifugal water pump with a large drainage capacity, which effectively reduces the number of starts per unit cycle and increases the service life of the pump body.

11. The automatic dehumidification drainage system according to claim 8, characterized in that: The multi-functional socket protruding from the top of the pumping assembly includes a socket box, two power supply spring pins connected to the positive and negative terminals of the pump, and two signal spring pins for detecting the signal of the water tank leaving its original position. The two power supply spring pins are arranged side by side at the center of the socket box, and the two signal spring pins are symmetrically distributed on both sides of the two power supply spring pins. All the signal spring pins and power supply spring pins have springs installed at their rear ends for self-extension of their respective spring pins. The power plug in the corresponding mounting slot is provided with a male plug that mates with the socket box. The male plug has a copper post at its mating end face that mates with all the signal spring pins and the power supply spring pins respectively. The outer circumferential edge of the male plug that mates with the socket box is also fitted with a silicone sealing sleeve for sealing the mating point.

12. A dehumidifier, comprising a housing and a water tank, the water tank being inserted into a mounting groove in the housing along a front-to-back direction; characterized in that, The housing and the water tank are equipped with an automatic dehumidification drainage system as described in any one of claims 1 to 11.

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