A multi-mode controlled dehumidifier

Abstract

The utility model discloses a multi -mode control's dehumidifier for super dehumidification, purifying dehumidification and directional dehumidification, including the casing, the first air inlet and the second air inlet are arranged to the upper and lower of casing back, and the first air inlet is installed with the first air guide mechanism that controls the opening and closing of air port, the first air outlet that is used for dehumidification air export is arranged to the top of casing and communicates with the volute of fan assembly, the second air guide mechanism that controls the opening and closing of air port is installed to the first air outlet, the volute side wall of fan assembly is adjacent to the first air outlet and still seted up the volute guide mechanism that dehumidification airflow is exported from the side wall of casing, and the second air outlet that is used for dehumidification airflow directional export is arranged to the side wall of casing and corresponds volute guide mechanism place, through the combination control of different air inlet and air outlet air deflector, realize airflow channel variation, realize evaporimeter and condenser respectively enter super dehumidification mode, purifying dehumidification mode and directional dehumidification mode.

Description

Technical Field

[0001] This utility model relates to air conditioning technology, and more particularly to a dehumidifier with multi-mode control. Background Technology

[0002] A multi-mode controlled dehumidifier is an air conditioning device used to regulate air temperature and humidity. Its working principle involves the evaporation of liquid refrigerant in an evaporator, drawing heat from the surrounding air. As the refrigerant evaporates, the evaporator temperature drops, and the temperature of the air passing through it also decreases. Therefore, as the temperature around the evaporator decreases, the moisture in the air condenses and forms dew on the evaporator surface. The dehumidified air is then discharged into the room, thus reducing indoor humidity. Furthermore, in most existing multi-mode controlled dehumidifiers, the evaporator and condenser are arranged side-by-side. Air first passes through the evaporator, causing the moisture in the air to condense into liquid water. This water flows from the evaporator fins into a drip tray, and the air temperature decreases before it passes through the condenser to absorb heat. This gives existing multi-mode controlled dehumidifiers the characteristics of a heat pump; they can both utilize the cooling capacity of the evaporator to cool and dehumidify the air and utilize the heat released from the condenser to heat the air with reduced moisture content. Therefore, they possess temperature and humidity control capabilities and are widely used in applications with various temperature and humidity requirements.

[0003] However, as people's living standards improve, their requirements for indoor living environments are also increasing. As devices for regulating air humidity, dehumidifiers with multi-mode control are also subject to higher demands. Traditional multi-mode dehumidifiers have an unreasonable distribution of internal components, resulting in a loose internal structure and low space utilization. Furthermore, their exterior design is typically rectangular, with a centrifugal fan and an air outlet usually located at the top. This limitation restricts the implementation of other air outlet methods, thus limiting the overall design of multi-mode dehumidifiers. Utility Model Content

[0004] This utility model provides a dehumidifier with multi-mode control, which adds multiple air-guiding and closing structures such as air inlet and air outlet to meet various user needs such as super dehumidification, purification dehumidification, and directional dehumidification. In addition, a new air duct is added in the corresponding cavity of the compressor to effectively solve the heat dissipation problem during the power operation of the inverter electrical box.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A multi-mode controlled dehumidifier for super-strong dehumidification, purifying dehumidification and directional dehumidification, comprising a square housing;

[0007] The back of the housing is provided with a first air inlet and a second air inlet, which are respectively arranged on the upper and lower sides to allow air to enter from the back. The first air inlet is located on the upper side of the back of the housing, and a first air guide mechanism for controlling the opening and closing of the air inlet is installed at the first air inlet.

[0008] An evaporator, a condenser, and a fan assembly are arranged in parallel along the transverse direction in the inner cavity of the housing corresponding to the first air inlet. A water receiving tray is provided on the bottom side of the evaporator, the condenser, and the fan assembly to divide the inner cavity of the housing vertically and to collect the condensate generated by the evaporator and the condenser.

[0009] The upper part of the second air inlet is disposed adjacent to the lower part of the first air inlet and communicates with the lower parts of the evaporator and the condenser;

[0010] The top of the housing is provided with a first air outlet that communicates with the volute of the fan assembly and is used to discharge dehumidified air. A second air guide mechanism for controlling the opening and closing of the air outlet is installed at the first air outlet. After the external air enters from the first air inlet, it passes through the evaporator and the condenser in sequence for dehumidification, and is then blown out from the first air outlet by the fan assembly to form a first airflow channel.

[0011] An electrical box, a compressor, and a dehumidifying water tank are installed in the inner cavity of the housing below the fan assembly and the water receiving tray. The electrical box is directly opposite to the inner cavity of the housing below the fan assembly, and a heat dissipation outlet is opened on the top side of the electrical box, which communicates with the inner cavity of the volute of the fan assembly to form a heat dissipation airflow by negative pressure extraction of the gas inside the electrical box. Correspondingly, a heat dissipation air inlet is provided on the side wall or bottom of the electrical box, which communicates with the inner cavity of the housing and the second air inlet. Under the negative pressure extraction action of the fan assembly, external air enters the inner cavity of the housing below from the second air inlet, passes through the compressor and the heat dissipation air inlet, cools down the electronic components inside the electrical box, and then blows out from the heat dissipation air outlet to form a second airflow channel.

[0012] The fan assembly is further provided with a volute sidewall near the first air outlet, which controls the opening and closing of the volute wall and guides the dehumidified airflow from the sidewall of the housing. A second air outlet for directional discharge of dehumidified airflow is provided on the sidewall of the housing corresponding to the volute sidewall guiding mechanism.

[0013] The first air guide mechanism opens the first air inlet, the second air guide mechanism opens the first air outlet, and the volute wall guide mechanism closes the second air outlet. After entering through the first air inlet and the second air inlet, the external air passes through the first airflow channel and the second airflow channel respectively, and is discharged through the first air outlet. The dehumidified airflow, the evaporator and the condenser enter the super dehumidification mode.

[0014] The first air guide mechanism closes the first air inlet, the second air guide mechanism opens the first air outlet, and the volute wall guide mechanism closes the second air outlet. After entering through the second air inlet, the external air is divided and flows through the first airflow channel and the second airflow channel respectively. The dehumidified airflow is discharged through the first air outlet, and the evaporator and condenser enter the purification and dehumidification mode.

[0015] When the humidity is high or the drying room needs dehumidification, the first air guide mechanism opens the first air inlet, the second air guide mechanism closes the first air outlet, and the volute flow guide mechanism opens the second air outlet. After the outside air enters through the first air inlet and the second air inlet, it passes through the first airflow channel and the second airflow channel respectively, and is directionally discharged through the second air outlet. The evaporator and the condenser enter the directional dehumidification mode.

[0016] Preferably, the upper part of the second air inlet is located above the water receiving tray and communicates with the lower part of the evaporator and the condenser.

[0017] Preferably, a directional air guide plate for controlling the opening and closing of the air outlet is also installed at the second air outlet.

[0018] Preferably, the volute wall guiding mechanism includes a volute air guide plate and a directional air guide control motor, wherein the directional air guide motor drives the deflection of the volute air guide plate to control the opening and closing of the flow channel corresponding to the second air outlet.

[0019] Preferably, the second air outlet is also connected to an exhaust pipe that directs the dehumidified airflow to the desired location. The end of the exhaust pipe directly directs the dehumidified airflow to the wardrobe drying, clothing interior drying, shoe cabinet, and shoe interior drying.

[0020] Preferably, both the first and second air guiding mechanisms include multiple parallel air guiding plates, a drive motor, a translation rack, a rack slide box, a connecting rod, and multiple crankshafts. One end of each crankshaft is hinged to the connecting rod, and the other end of each crankshaft is hinged to each air guiding plate. A main gear that meshes with the translation rack is coaxially mounted on the output shaft of the drive motor. The drive motor drives the translation rack to slide laterally within the rack slide box via the main gear. The translation rack is hinged to the connecting rod and, through the connecting rod and multiple crankshafts, drives multiple air guiding plates to rotate synchronously to control the opening and closing of the air vents and the air inlet / outlet angles.

[0021] Preferably, the rack and pinion slide box is composed of a gear box and a gear cover that interlock with each other. The main gear on the output shaft of the drive motor is installed in the inner cavity of the gear box and the gear cover that interlock. The gear box and the gear cover are respectively provided with a shaft hole for positioning the main gear and a strip hole for lateral movement of the translation rack on opposite side walls. The corresponding translation rack is provided with positioning pins that slide with the strip holes on both sides.

[0022] Preferably, a HEPA filter is also installed at the second air inlet for isolating and reducing noise in the cavity where the compressor is located and for filtering and cleaning the incoming gas.

[0023] Preferably, the electrical box includes a cover and a body. The main control board and a heat sink are installed inside the body. The cover is attached to the side opening of the side wall of the body. The top side of the body has a protruding annular heat dissipation vent. The bottom side of the body has a downward-extending heat dissipation vent with a side opening and an L-shaped air intake channel.

[0024] The beneficial effects of this utility model are:

[0025] In this invention, a first air guide mechanism is provided at the first air inlet, which controls the opening and closing of the air inlet through multiple air guide plates, and a second air guide mechanism is provided at the first air outlet, which controls the opening and closing of the air outlet through multiple air guide plates. This effectively reduces the possibility of dust entering the dehumidifier when it is not in use. At the same time, a HEPA filter is also installed at the second air inlet to isolate and reduce noise in the cavity where the compressor is located and to filter and clean the incoming air.

[0026] Moreover, the first air inlet is controlled by the opening and closing of the first air guide mechanism, the first air outlet is controlled by the opening and closing of the second air guide mechanism, and the second air outlet is controlled by the opening and closing of the volute guide mechanism, so that the airflow channels at different positions of the whole machine can be changed. That is, the switching control of the super dehumidification mode, the purification dehumidification mode and the directional dehumidification mode can be realized by closing multiple sets of air guide plates, which effectively improves the control function of the whole machine.

[0027] Meanwhile, a second airflow channel is connected to the inner cavity of the housing on the lower side of the fan assembly. Under the negative pressure of the fan assembly, external air enters the inner cavity on the lower side of the housing through the second air inlet. After passing through the compressor and the heat dissipation air inlet, the air cools the electronic components in the electrical box and is then blown out from the heat dissipation air outlet, effectively solving the heat dissipation problem of the existing frequency converter electrical box during power operation.

[0028] In addition, both the first and second air guiding mechanisms use linkage and gear mechanisms to drive multiple air guide plates to rotate synchronously to control the opening and closing of the air outlet and the angle of air inlet or outlet. Under relatively limited space conditions, the rotational movement of the air guide plates in the limited space is realized, avoiding structural interference, achieving a compact structure, and effectively controlling the opening and closing of the air outlet and the angle of air inlet and outlet.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0030] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a rear three-dimensional structural diagram of the present invention after removing the air inlet component;

[0032] Figure 3 This is a rear-view three-dimensional structural schematic diagram of the present invention;

[0033] Figure 4 This is a schematic diagram of the longitudinal section of this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the second air outlet in the closed state in the cross-sectional structure of this utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the second air outlet in the open state in the cross-sectional structure of this utility model;

[0036] Figure 7 This is an enlarged front view of the first or second air guiding mechanism in this utility model.

[0037] Figure 8 This is a rear view enlarged schematic diagram of the first or second air guiding mechanism in this utility model;

[0038] Figure 9 This is an enlarged exploded view of the driving part of the first or second air guiding mechanism in this utility model.

[0039] Figure 10 This is an enlarged schematic diagram of the linkage mechanism of the upper part of the first or second air guide mechanism in this utility model;

[0040] Figure 11 This is a schematic diagram of the flow channel structure corresponding to the electrical box in this utility model;

[0041] Figure 12 This is an exploded view of the electrical box in this utility model. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] 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. 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 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.

[0044] Furthermore, if the terms "first" and "second" 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.

[0045] Furthermore, in the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" 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 utility model can be reasonably determined in conjunction with the specific content of the technical solution.

[0046] A dehumidifier with multi-mode control, such as Figures 1 to 6As shown, for super-strong dehumidification, purification dehumidification, and directional dehumidification, it includes a square housing 1. The back of the housing 1 has a first air inlet 2 and a second air inlet 3, respectively, positioned vertically. The first air inlet 2 is located on the upper side of the back of the housing 1, and a first air guide mechanism 4 for controlling the opening and closing of the air inlet is installed at the first air inlet 2. In the inner cavity of the housing 1 corresponding to the first air inlet 2, an evaporator 5, a condenser 6, and a fan assembly 7 are arranged in parallel along the transverse direction. A water collection tray 8 is provided on the bottom side of the evaporator 5, condenser 6, and fan assembly 7 to divide the inner cavity of the housing 1 vertically and to collect the condensate generated by the evaporator 5 and the condenser 6. The second air inlet 3... The upper air vent is located above the water tray 8 and communicates with the lower part of the evaporator 5 and condenser 6. The top of the housing 1 is provided with a first air outlet 9 that communicates with the volute of the fan assembly 7 and is used to discharge dehumidified air. A second air guide mechanism 10 for controlling the opening and closing of the air outlet is installed at the first air outlet 9. After entering from the first air inlet 2, the external air passes through the evaporator 5 and condenser 6 in sequence for dehumidification, and is then blown out from the first air outlet 9 by the fan assembly 7 to form a first airflow channel. An electrical box 11, a compressor 12 and a dehumidifying water tank 13 are installed in the inner cavity of the housing 1 below the fan assembly 7 and the water tray 8. The electrical box 11 is directly opposite the inner cavity of the housing 1 below the fan assembly 7. The top side of the electrical box 11 has a heat dissipation outlet 114 that communicates with the inner cavity of the volute of the fan assembly 7 to draw away the gas inside the electrical box 11 under negative pressure and form a heat dissipation airflow. Correspondingly, the bottom end of the electrical box 11 has a heat dissipation inlet 115 that communicates with the inner cavity of the housing 1 and the second air inlet 3. Under the negative pressure of the fan assembly 7, external air enters the lower inner cavity of the housing 1 from the second air inlet 3, passes through the compressor 12 and the heat dissipation inlet 115, and then cools down the electronic components inside the electrical box 11 before being blown out from the heat dissipation outlet 114 to form a second airflow channel. On the volute side wall of the fan assembly 7 near the first air outlet 9, there is also a control for opening and closing the volute wall to remove air. A volute-wall guide mechanism 13a guides the humid airflow from the side wall of the housing 1. A second air outlet 14 for directional discharge of dehumidified airflow is provided on the side wall of the housing 1 corresponding to the volute-wall guide mechanism 13a. A directional air guide plate 15 for controlling the opening and closing of the air outlet is also installed at the second air outlet 14. An air inlet grille 16 is installed at both the first air inlet 2 and the second air inlet 3. A HEPA filter 17 is also installed at the second air inlet 3 to filter and clean the incoming air and to isolate and reduce noise in the cavity where the compressor 12 is located. The air inlet grille is removable. After removal, the HEPA filter 17 and the pre-filter inside the air inlet grille can be removed for easy cleaning or replacement by the user.

[0047] When in operation, when the first air guide mechanism 4 opens the first air inlet 2, the second air guide mechanism 10 opens the first air outlet 9, and the volute wall guide mechanism 13a closes the second air outlet 14, external air enters through the first air inlet 2 and the second air inlet 3, passes through the first airflow channel and the second airflow channel respectively, and is discharged through the first air outlet 9 as dehumidified airflow. The evaporator 5 and the condenser 6 enter the super dehumidification mode.

[0048] When the first air guide mechanism 4 closes the first air inlet 2, the second air guide mechanism 10 opens the first air outlet 9, and the volute wall guide mechanism 13a closes the second air outlet 14, the outside air enters through the second air inlet 3 and is divided into the first airflow channel and the second airflow channel, and is discharged through the first air outlet 9 as dehumidified airflow. The evaporator 5 and the condenser 6 then enter the purification and dehumidification mode.

[0049] When humidity is high or dehumidification is needed in the drying room, the first air guide mechanism 4 opens the first air inlet 2, the second air guide mechanism 10 closes the first air outlet 9, and the volute wall guide mechanism 13a opens the second air outlet 14. After the outside air enters through the first air inlet 2 and the second air inlet 3, it passes through the first airflow channel and the second airflow channel respectively, and is directionally discharged through the second air outlet 14. The directionally discharged dehumidified airflow is introduced to the required location through the exhaust pipe connected to the second air outlet 14, such as drying inside the wardrobe, drying inside the clothes, drying inside the shoe cabinet or shoes. At this time, the evaporator 5 and the condenser 6 enter the directional dehumidification mode.

[0050] like Figure 5 and Figure 6 As shown, the volute-wall airflow guiding mechanism 13a includes a volute air guide plate 130 and a directional airflow control motor (not shown in the figure). The directional airflow motor drives the deflection of the volute air guide plate to control the opening and closing of the flow channel corresponding to the second air outlet 14. The second air outlet 14 is also connected to an exhaust pipe (not shown in the figure) that directs the directional dehumidified airflow to the desired location. The end of the exhaust pipe directly guides the dehumidified airflow to the wardrobe drying, clothing interior drying, shoe cabinet, and shoe interior drying.

[0051] like Figures 7 to 10As shown, the first air guiding mechanism 4 and the second air guiding mechanism 10 both include multiple air guiding plates 40 arranged in parallel, a drive motor 41, a translation rack 42, a rack slide box 43, a connecting rod 44, and multiple crankshafts 45. One end of each crankshaft 45 is hinged to the connecting rod 44, and the other end of each crankshaft 45 is hinged to each air guiding plate 40. A main gear 410 that meshes with the translation rack is coaxially mounted on the output shaft of the drive motor 41. The drive motor 41 drives the translation rack 42 to slide laterally in the rack slide box 43 through the main gear 410. The translation rack 42 is hinged to the connecting rod 44 and drives the multiple air guiding plates 40 to rotate synchronously through the connecting rod 44 and the multiple crankshafts 45 to control the opening and closing of the air outlet, the air inlet and outlet deflection angles. The rack and pinion slide box 43 consists of a gear box 430 and a gear cover 431 that interlock. The main gear 410 on the output shaft of the drive motor is installed in the interlocking cavity of the gear box 430 and the gear cover 431. The gear box 430 and the gear cover 431 are respectively provided with a rotating shaft hole 46 for positioning the main gear 410 and a strip-shaped hole 47 for lateral movement of the rack. The corresponding lateral rack 42 is provided with positioning pins 420 that slide with the strip-shaped hole 47 on both sides. The first air guiding mechanism 4 and the second air guiding mechanism 10 both use linkage mechanism and gear mechanism to drive multiple air guiding plates to rotate synchronously to control the opening and closing of the air outlet and the angle of air inlet or outlet. Under relatively limited space conditions, the rotational movement of the air guiding plates in the limited space is realized, avoiding structural interference, achieving a compact structure, and effectively controlling the opening and closing of the air outlet and the angle of air inlet and outlet.

[0052] like Figure 4 , Figure 11 and Figure 12 As shown, the electrical box 11 includes a cover 110 and a body 111. The main control board 112 and the heat sink 113 are installed inside the body 111. The cover 110 is attached to the side opening of the side wall of the body 111 from the side. The top side of the body 111 has a protruding ring-shaped heat dissipation vent 114. The bottom side of the body 111 has a heat dissipation vent 115 with a side opening and an L-shaped air intake channel extending downward.

[0053] The dehumidifier control method with multi-mode control includes the following steps:

[0054] S1. Super Dehumidification Mode

[0055] S1.0. The first air guide mechanism 4 opens the first air inlet 2, the second air guide mechanism 10 opens the first air outlet 9, and the volute wall guide mechanism 13a closes the second air outlet 14. The external air is filtered by the HEPA filter 17 at the first air inlet 2 and the second air inlet 3 and then passes through the first airflow channel and the second airflow channel respectively.

[0056] S1.1. Simultaneously, compressor 12 performs a frequency increase operation, adjusting to the highest permissible frequency;

[0057] S1.2. After the airflow in the second airflow channel enters the lower inner cavity of the housing 1, it passes through the compressor 12 and the heat dissipation air inlet 115, and then cools down the electronic components in the electrical box 11 before being blown out from the heat dissipation air outlet 114.

[0058] S1.3. The second air guide mechanism 10 controls the air guide plate at the first air outlet 9 to be fully opened, and the dehumidified airflow is discharged from the first air outlet 9, and the evaporator 5 and condenser 6 enter the super dehumidification mode.

[0059] S2. Purification and Dehumidification Mode

[0060] S2.0. The first air guide mechanism 4 closes the first air inlet 2, the second air guide mechanism 10 opens the first air outlet 9, and the volute wall guide mechanism 13a closes the second air outlet 14;

[0061] S2.1. After being filtered by the HEPA filter 17 at the second air inlet 3, the outside air is split and flows through the first airflow channel and the second airflow channel respectively;

[0062] S2.2. At the same time, compressor 12 operates at the set frequency;

[0063] S2.3. The airflow in the second airflow channel, after passing through the compressor 12 and the heat dissipation air inlet 115, cools down the electronic components in the electrical box 11 and then blows out from the heat dissipation air outlet 114.

[0064] S2.4. The second air guide mechanism 10 controls the air guide plate at the first air outlet 9 to be fully opened, and the dehumidified airflow is discharged from the first air outlet 9, and the evaporator 5 and condenser 6 enter the purification and dehumidification mode.

[0065] S3. Targeted Dehumidification Mode

[0066] S3.0. When the humidity is high or the drying room needs dehumidification, the first air guide mechanism 4 opens the first air inlet 2, the second air guide mechanism 10 closes the first air outlet 9, and the volute wall guide mechanism 13a opens the second air outlet 14.

[0067] S3.1. The second air outlet 14 is connected to an exhaust pipe that directs the dehumidified airflow to the desired location;

[0068] S3.2. External air is filtered by HEPA filters 17 at the first air inlet 2 and the second air inlet 3 and then passes through the first airflow channel and the second airflow channel respectively.

[0069] S3.3. At the same time, compressor 12 operates at the set frequency;

[0070] S3.4. The airflow in the second airflow channel, after passing through the compressor 12 and the heat dissipation air inlet 115, cools down the electronic components in the electrical box 11 and then blows out from the heat dissipation air outlet 114.

[0071] S3.5. Dehumidified airflow is discharged directionally from the second air outlet 14, and the exhaust pipe guides the dehumidified airflow to the wardrobe, the inside of clothes, the shoe cabinet or the inside of shoes for drying and dehumidification.

[0072] S3.6. Evaporator 5 and condenser 6 enter directional dehumidification mode.

[0073] In this embodiment, to address the issue that when the dehumidifier is not in use, dust can enter the dehumidifier from the air outlet or inlet, adhering to the air duct or the evaporator 5 and condenser 6, causing cleaning difficulties and providing hiding places for bacteria and viruses, inevitably leading to adverse effects on indoor air quality when used again, a first air guide mechanism 4 is installed at the first air inlet 2, controlling the opening and closing of the air inlet with multiple air guide plates. A second air guide mechanism 10 is installed at the first air outlet 9, controlling the opening and closing of the air outlet with multiple air guide plates. This effectively reduces the possibility of dust entering the machine when it is not in use. Simultaneously, a HEPA filter 17 is installed at the second air inlet 3 to isolate and reduce noise in the cavity containing the compressor 12 and to filter and clean the incoming air. This effectively reduces the entry of dust or other fine particles into the machine.

[0074] Moreover, since current dehumidifiers all use compressor 12 as the driving source, they inevitably have a certain amount of vibration and noise during operation. Although existing technologies use sound insulation cotton and sponge to prevent the risk of noise transmission, the HEPA filter 17 installed at the second air inlet 3 in this utility model can form a barrier with the compressor chamber and the air inlet chamber, which can effectively reduce the transmission of vibration and noise. This helps the variable frequency dehumidifier achieve ultra-quiet operation at low frequency and low speed, and effectively improves the operating noise of the dehumidifier.

[0075] Meanwhile, considering the significant impact of airflow on dehumidifier performance during dehumidification, this embodiment includes a first air inlet 2 and a second air inlet 3 with large airflow on the back side of the casing 1. The guide vane of the first air inlet 2 can be closed. When the super-strong dehumidifier is in operation, the guide vane of the first air inlet 2 is fully opened, allowing airflow to enter the dehumidifier from the guide vane and HEPA filter 17. Simultaneously, the compressor 12 increases its frequency to the highest permissible frequency, and the guide vane of the corresponding first air outlet 9 is also fully opened, thus achieving super-strong dehumidification. Furthermore, the opening and closing control of the first air inlet 2 by the first air guide mechanism 4, the first air outlet 9 by the second air guide mechanism 10, and the second air outlet 14 by the volute wall guide mechanism 13a allows for airflow channel variation at different locations within the unit. This means that switching between super-strong dehumidification mode, purification dehumidification mode, and directional dehumidification mode is achieved through the closure of multiple sets of guide vanes, effectively improving the overall control functionality of the unit.

[0076] In addition, in the inverter technology of dehumidifiers, there are components such as inductors and power modules that generate a lot of heat, requiring additional heat sinks for cooling. In this embodiment, the electrical box 11 and the compressor 12 are arranged side by side in the same position. Airflow channels are added to the top and bottom of the electrical box 11. The lower end of the electrical box 11 is connected to the chassis, and the upper end of the electrical box 11 is connected to the water tray 8 and the fan volute. Specifically, a second airflow channel is connected to the inner cavity of the housing 1 on the lower side of the fan assembly 7. Under the negative pressure of the fan assembly 7, the outside air enters the inner cavity of the lower side of the housing 1 from the second air inlet 3, passes through the compressor 12 and the heat dissipation air inlet 115, and then enters from the bottom of the chassis and is discharged from the top through the heat sink on the main board, taking away the heat. After the electronic components in the electrical box 11 are cooled by air, the air is blown out from the heat dissipation air outlet 114, achieving the purpose of cooling and effectively solving the heat dissipation problem of the existing inverter electrical box 11 during power operation.

[0077] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. All equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A multi-mode controlled dehumidifier for hyper-dehumidification, purification dehumidification and targeted dehumidification, characterized in that, Includes a square casing; The back of the housing is provided with a first air inlet and a second air inlet, which are respectively arranged on the upper and lower sides to allow air to enter from the back. The first air inlet is located on the upper side of the back of the housing, and a first air guide mechanism for controlling the opening and closing of the air inlet is installed at the first air inlet. An evaporator, a condenser, and a fan assembly are arranged in parallel along the transverse direction in the inner cavity of the housing corresponding to the first air inlet. A water receiving tray is provided on the bottom side of the evaporator, the condenser, and the fan assembly to divide the inner cavity of the housing vertically and to collect the condensate generated by the evaporator and the condenser. The upper part of the second air inlet is disposed adjacent to the lower part of the first air inlet and communicates with the lower parts of the evaporator and the condenser; The top of the housing is provided with a first air outlet that communicates with the volute of the fan assembly and is used to discharge dehumidified air. A second air guide mechanism for controlling the opening and closing of the air outlet is installed at the first air outlet. After the external air enters from the first air inlet, it passes through the evaporator and the condenser in sequence for dehumidification, and is then blown out from the first air outlet by the fan assembly to form a first airflow channel. An electrical box, a compressor, and a dehumidifying water tank are installed in the inner cavity of the housing below the fan assembly and the water receiving tray. The electrical box is directly opposite to the inner cavity of the housing below the fan assembly, and a heat dissipation outlet is opened on the top side of the electrical box, which communicates with the inner cavity of the volute of the fan assembly to form a heat dissipation airflow by negative pressure extraction of the gas inside the electrical box. Correspondingly, a heat dissipation air inlet is provided on the side wall or bottom of the electrical box, which communicates with the inner cavity of the housing and the second air inlet. Under the negative pressure extraction of the fan assembly, external air enters the inner cavity of the housing below from the second air inlet, passes through the compressor and the heat dissipation air inlet, cools down the electronic components inside the electrical box, and then blows out from the heat dissipation air outlet to form a second airflow channel. The fan assembly is further provided with a volute sidewall near the first air outlet, which controls the opening and closing of the volute wall and guides the dehumidified airflow from the sidewall of the housing. A second air outlet for directional discharge of dehumidified airflow is provided on the sidewall of the housing corresponding to the volute sidewall guiding mechanism. The first air guide mechanism opens the first air inlet, the second air guide mechanism opens the first air outlet, and the volute wall guide mechanism closes the second air outlet. After entering through the first air inlet and the second air inlet, the external air passes through the first airflow channel and the second airflow channel respectively, and is discharged through the first air outlet. The dehumidified airflow, the evaporator and the condenser enter the super dehumidification mode. The first air guide mechanism closes the first air inlet, the second air guide mechanism opens the first air outlet, and the volute wall guide mechanism closes the second air outlet. After entering through the second air inlet, the external air is divided and flows through the first airflow channel and the second airflow channel respectively. The dehumidified airflow is discharged through the first air outlet, and the evaporator and condenser enter the purification and dehumidification mode. When the humidity is high or the drying room needs dehumidification, the first air guide mechanism opens the first air inlet, the second air guide mechanism closes the first air outlet, and the volute flow guide mechanism opens the second air outlet. After the outside air enters through the first air inlet and the second air inlet, it passes through the first airflow channel and the second airflow channel respectively, and is directionally discharged through the second air outlet. The evaporator and the condenser enter the directional dehumidification mode.

2. The dehumidifier with multi-mode control according to claim 1, characterized in that: The upper part of the second air inlet is located on the upper side of the water receiving tray and communicates with the lower part of the evaporator and the condenser.

3. A dehumidifier with multi-mode control according to claim 1, characterized in that: A directional air guide plate for controlling the opening and closing of the air outlet is also installed at the second air outlet.

4. A dehumidifier with multi-mode control according to claim 1, characterized in that: The volute wall guiding mechanism includes a volute air guide plate and a directional air guide control motor. The directional air guide motor drives the deflection of the volute air guide plate to control the opening and closing of the flow channel corresponding to the second air outlet.

5. A dehumidifier with multi-mode control according to claim 1, characterized in that: The second air outlet is also connected to an exhaust pipe that directs the dehumidified airflow to the desired location.

6. A dehumidifier with multi-mode control according to claim 1, characterized in that: Both the first and second air guiding mechanisms include multiple parallel air guiding plates, a drive motor, a translation rack, a rack slide box, a connecting rod, and multiple crankshafts. One end of each crankshaft is hinged to the connecting rod, and the other end of each crankshaft is hinged to each air guiding plate. A main gear that meshes with the translation rack is coaxially mounted on the output shaft of the drive motor. The drive motor drives the translation rack to slide laterally within the rack slide box via the main gear. The translation rack is hinged to the connecting rod and, through the connecting rod and multiple crankshafts, drives multiple air guiding plates to rotate synchronously to control the opening and closing of the air vents and the air inlet / outlet angles.

7. A dehumidifier with multi-mode control according to claim 6, characterized in that: The rack and pinion slide box consists of a gear box and a gear cover that interlock with each other. The main gear on the output shaft of the drive motor is installed in the inner cavity of the gear box and the gear cover. The gear box and the gear cover are respectively provided with a rotating shaft hole for positioning the main gear and a strip-shaped hole for lateral movement of the translation rack on their opposite side walls. The corresponding translation rack is provided with positioning pins that slide with the strip-shaped holes on both sides.

8. A dehumidifier with multi-mode control according to claim 1, characterized in that: The second air inlet is also equipped with a HEPA filter for isolating and reducing noise in the cavity where the compressor is located and for filtering and cleaning the incoming gas.

9. A dehumidifier with multi-mode control according to claim 1, characterized in that: The electrical box includes a cover and a body. The main control board and a heat sink are installed inside the box. The cover is attached to the side opening of the side wall of the body. The top of the body has a protruding ring-shaped heat dissipation vent. The bottom of the body has a side opening with an L-shaped air intake.

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