Cold air dehumidifier and control method thereof

Abstract

The present invention provides a cold air dehumidifier and a control method thereof. The cold air dehumidifier includes: an evaporator, a dehumidification duct component, and a cold air duct component. The dehumidification duct component includes a first duct and a condenser. The cold air duct component includes a second duct. The condenser is arranged in the first duct. The first duct and the second duct are arranged side by side. The evaporator is simultaneously located upstream of the first air inlet end of the first duct along the airflow direction and upstream of the second air inlet end of the second duct along the airflow direction. At least part of the air after heat exchange with the evaporator can enter the first duct and enter the room after heat exchange with the condenser, completing dehumidification. At least part of the air after heat exchange with the evaporator can pass through the second duct and enter the room, forming cooling. According to the present invention, in the mode of dehumidifying the room, cooling and temperature reduction can also be achieved, effectively solving the problem of the dehumidifier not cooling, and the problem that the dehumidifier has a single function and causes the indoor temperature to rise over a long period of time.

Description

Technical Field

[0001] The present invention relates to the technical field of dehumidification, and in particular to a cold air dehumidifier and a control method thereof. Background Art

[0002] With the continuous improvement of people's living standards, dehumidifiers have gradually become an indispensable item in many households. A dehumidifier works by drawing high-humidity air into a heat exchanger, where it becomes dry air before being discharged into the room. Currently, most dehumidifiers on the market have only one function: to reduce the humidity in a room. This is a relatively simple function. Prolonged use of the dehumidifier can increase the indoor temperature. If you need to cool the room, you will need to purchase an air conditioner separately.

[0003] Since the dehumidifiers in the prior art have technical problems such as being unable to cool down the room during dehumidification, the present invention studies and designs a cold air type dehumidifier and a control method thereof. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the dehumidifier in the prior art cannot cool down the room during dehumidification, thereby providing a cold air dehumidifier and a control method thereof.

[0005] In order to solve the above problems, the present invention provides a cold air dehumidifier, which includes:

[0006] An evaporator, a dehumidification air duct component and a cold air duct component, the dehumidification air duct component includes a first air duct and a condenser, the cold air duct component includes a second air duct, the condenser is arranged in the first air duct, the first air duct and the second air duct are arranged side by side, and the evaporator is simultaneously located upstream of the first air inlet end of the first air duct along the air flow direction and upstream of the second air inlet end of the second air duct along the air flow direction, at least part of the air after heat exchange in the evaporator can enter the first air duct and enter the room after heat exchange with the condenser to complete dehumidification, and at least part of the air after heat exchange in the evaporator can pass through the second air duct and enter the room to form refrigeration.

[0007] In some embodiments, the first air inlet end of the first air duct includes multiple first air inlets, and a first wind control structure is provided at the first air inlet. There are multiple first wind control structures, and the first wind control structures are provided in a one-to-one correspondence with the first air inlets, and the first wind control structure can be controlled to move to open and close the first air inlet.

[0008] In some embodiments, the first air inlet end further includes a third air inlet, and the third air inlet is a normally open air inlet; the third air inlet is spaced apart from the first air inlet, and there is a space between two adjacent first air inlets.

[0009] In some embodiments, the second air inlet end of the second air duct includes multiple second air inlets, and a second wind control structure is provided at the second air inlet. There are multiple second wind control structures, and the second wind control structures are arranged one-to-one corresponding to the second air inlets, and the second wind control structure can be controlled to move to open and close the second air inlet.

[0010] In some embodiments, a drive motor component is further included, which is electrically connected to the first wind control structure and the second wind control structure, respectively, and can drive the first wind control structure and the second wind control structure to move, respectively; the first wind control structure and the second wind control structure are both wind guide plate structures.

[0011] In some embodiments, the dehumidification air duct component further includes a first fan, which is disposed in the first air duct and is located downstream of the condenser along the air flow direction. The cold air dehumidifier further includes a first air outlet, which is connected to the first air duct. The first fan can drive the gas in the first air duct that has passed through the condenser after heat exchange to be blown out from the first air outlet.

[0012] The cold air duct component also includes a second fan, which is arranged in the second air duct. The cold air dehumidifier also includes a second air outlet, which is connected to the second air duct. The second fan can drive the gas in the second air duct to be blown out from the second air outlet.

[0013] In some embodiments, the first fan includes an axial flow blade and a first motor, the cold air dehumidifier includes a panel, the first air outlet is provided on the panel, the panel is provided in front of the first air duct and the second air duct, and the first air outlet is connected to the first air duct along the axis direction of the axial flow blade;

[0014] The second fan includes centrifugal fan blades and a second motor, the cold air dehumidifier includes a top cover, the second air outlet is arranged on the top cover, the top cover is connected to the upper end of the second air duct, and the second air outlet is connected to the second air duct along the radial direction of the centrifugal fan blades.

[0015] In some embodiments, it also includes a rear shell, a chassis, a first side panel and a second side panel. The rear shell, the first side panel, the second side panel, the top cover, the chassis and the panel together constitute the shell structure of the cold air type dehumidifier, and the rear shell and the panel are arranged opposite to each other. A fourth air inlet is provided on the rear shell. The evaporator is located between the rear shell and the first air duct, and the evaporator is located between the rear shell and the second air duct. The fourth air inlet can inhale air and reach the evaporator for heat exchange; the first side panel is located on the side of the second air duct away from the first air duct, and the second side panel is located on the side of the first air duct away from the second air duct.

[0016] In some embodiments, a water receiving pan, a water collecting tank and a compressor are further included. The water receiving pan is arranged below the evaporator to collect the condensed water generated by the evaporator. The water collecting tank and the compressor are both located below the water receiving pan, and the water collecting tank is connected to the drain outlet of the water receiving pan.

[0017] In some embodiments, a connecting hole is further provided at the position where the first air duct and the second air duct are connected, and the position between the condenser and the first fan is opposite to the connecting hole. A sealing structure is provided at the connecting hole, and the sealing structure can be controlled to move to open and close the connecting hole.

[0018] The present invention further provides a control method for a cold air type dehumidifier as described in any of the preceding items, wherein: when the cold air type dehumidifier includes both a first air control structure and a second air control structure: the control method includes:

[0019] a judging step of judging whether the desired operating mode of the cold air dehumidifier is a cooling and dehumidification mode, a powerful cooling mode, or a high-efficiency dehumidification mode; wherein the dehumidification capacity of the high-efficiency dehumidification mode is greater than that of the cooling and dehumidification mode, and the cooling capacity of the powerful cooling mode is greater than that of the cooling and dehumidification mode;

[0020] Control step: when the required operating mode of the cold air type dehumidifier is the cooling and dehumidification mode, control the first air control structure to open the first air inlet, and control the second air control structure to open the second air inlet; when the required operating mode of the cold air type dehumidifier is the strong cooling mode, control the first air control structure to close the first air inlet, and control the second air control structure to open the second air inlet; when the required operating mode of the cold air type dehumidifier is the high-efficiency dehumidification mode, control the first air control structure to open the first air inlet, and control the second air control structure to close the second air inlet.

[0021] In some embodiments, when a communication hole is further provided at the position where the first air duct and the second air duct meet, and a sealing structure is provided at the communication hole:

[0022] The control step also controls the movement of the sealing structure to open the connecting hole when the cold air type dehumidifier is required to operate in a high-efficiency dehumidification mode, so that part of the gas after heat exchange in the condenser enters the second air duct, and part of the gas still flows in the first air duct.

[0023] The cold air dehumidifier and control method thereof provided by the present invention have the following beneficial effects:

[0024] The dehumidifier has two ducts, one for cooling and the other for cooling the room, and the other for cooling the room, so that the dehumidifier can directly cool the room and cool the room.

[0025] 2. This invention provides a cold air dehumidifier housing layout with dual air ducts arranged side by side horizontally. Both ducts share a single evaporator, and the condenser is located within the ducts. Three modes can be set: powerful cooling mode, efficient dehumidification mode, and cooling and dehumidification mode to achieve maximum cooling capacity, maximize dehumidification capacity, and achieve simultaneous cooling and dehumidification functions. This solves the problem of a dehumidifier not cooling properly and the problem of a dehumidifier with limited functionality, which can lead to excessively high indoor temperatures due to prolonged operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an exploded structural diagram of the cold air type dehumidifier of the present invention;

[0027] Figure 2 This is a top view of the internal structure of the cold air dehumidifier of the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of the entire cold air dehumidifier of the present invention;

[0029] Figure 4a This is an external view of the cold air dehumidifier of the present invention;

[0030] Figure 4b This is another external view of the cold air dehumidifier of the present invention;

[0031] Figure 5 This is a diagram of the airflow direction of the cold air dehumidifier of the present invention in the cooling and dehumidification mode (from the top of the interior);

[0032] Figure 6 This is a diagram of the airflow direction of the cold air dehumidifier of the present invention in the strong cooling mode (interior top view);

[0033] Figure 7 This is an airflow diagram of the cold air dehumidifier of the present invention in high-efficiency dehumidification mode (interior top view);

[0034] Figure 8 This is an airflow diagram (internal top view) of an alternative embodiment of the cold air dehumidifier of the present invention in the high-efficiency dehumidification mode.

[0035] The reference numerals indicate:

[0036] 1. Water collecting tank; 2. Rear shell; 21. Fourth air inlet; 3. Evaporator; 4. Top cover; 41. Second air outlet; 5. Condenser; 6. Dehumidification air duct component; 61. First air control structure; 62. First air duct; 621. First air inlet; 622. Third air inlet; 63. First fan; 631. Axial flow fan blade; 7. Second side panel; 8. Panel; 81. First air outlet; 9. Drive motor component; 10. Cold air duct component; 101. Centrifugal fan blade; 102. Second motor; 103. Second air duct; 1031. Second air inlet; 104. Second air control structure; 11. Water collecting tray; 111. Drain outlet; 12. Compressor; 13. Chassis; 14. First side panel; 15. Sealing structure; A. Cold air direction; B. Dry air direction; C. Inlet air direction. DETAILED DESCRIPTION

[0037] like Figure 1-8 As shown, the present invention provides a cold air dehumidifier, which includes:

[0038] The evaporator 3, the dehumidification air duct component 6 and the cold air duct component 10, the dehumidification air duct component 6 includes a first air duct 62 and a condenser 5, the cold air duct component 10 includes a second air duct 103, the condenser 5 is arranged in the first air duct 62, the first air duct 62 and the second air duct 103 are arranged side by side, and the evaporator 3 is simultaneously located upstream of the first air inlet end of the first air duct 62 along the air flow direction and upstream of the second air inlet end of the second air duct 103 along the air flow direction. At least part of the air after heat exchange in the evaporator 3 can enter the first air duct 62 and enter the room after heat exchange with the condenser 5 to complete dehumidification. At least part of the air after heat exchange in the evaporator 3 can enter the room through the second air duct 103 to form refrigeration.

[0039] The present invention provides two air ducts, a dehumidifying duct component and a cold air duct component, which are arranged side by side at the downstream of the evaporator along the air flow direction, so that part of the cold air after evaporation and heat absorption by the evaporator enters the dehumidifying duct, and part of the cold air enters the cold air duct. Since the condenser is arranged in the dehumidifying duct, the refrigerated air can be heated and blown into the room through the first air outlet, thereby completing the dehumidification effect in the room; if the condenser is not arranged in the cold air duct, the cold air after the evaporator is cooled can be effectively blown into the room through the second air outlet, thereby forming a cooling effect in the room. Therefore, the present invention can open the first air duct and the second air duct at the same time in the cooling and dehumidifying mode, so that part of the air is heated by the condenser to form the dehumidified air, and the other part of the air is directly blown into the room through the cold air duct, so that the room can be effectively cooled and cooled in the dehumidifying mode.

[0040] The present invention provides a cold air dehumidifier housing layout with dual air ducts arranged side by side horizontally. The two ducts share a common evaporator, and the condenser is located within the ducts. Three modes can be set: strong cooling mode, high-efficiency dehumidification mode, and cooling and dehumidification mode to achieve maximum cooling capacity, maximize dehumidification capacity, and achieve simultaneous cooling and dehumidification functions. This can solve the problem of dehumidifiers not cooling properly and the problem of excessively high indoor temperatures caused by long-term operation of dehumidifiers with limited functions.

[0041] like Figure 1As shown, the dehumidification duct component 6 is composed of a first wind control plate 61, a first air duct 62 and a brushless fan (first fan 63). The wind control plate is connected to the air duct, and the brushless fan is connected to the air duct. The three are connected to form a dehumidification duct component, which is connected by means of buckles, screws, etc. The first air duct 62 is provided with a normally open opening (the third air inlet 622). The first motor is provided with a brushless fan blade (axial flow fan blade 631). The cold air duct component 10 is composed of a second wind control structure 104 (second wind control plate), a second air duct 103, a second motor 102, and a centrifugal fan blade 101. The fan blade is connected to the motor, the motor is connected to the air duct, and the wind control plate is connected to the air duct. It constitutes a cold air duct component. It is connected by means of buckles, screws, etc.

[0042] In some embodiments, the first air inlet end of the first air duct 62 includes a plurality of first air inlets 621, and a first air control structure 61 is provided at the first air inlet 621. There are multiple first air control structures 61, and each of the first air control structures 61 corresponds to the first air inlet one by one. The first air control structure 61 can be controlled to open and close the first air inlet 621. This is a preferred structural form of the first air duct of the present invention, that is, air can be introduced into the first air duct through the plurality of first air inlets, and the first air control structure can control the opening and closing of the first air inlets, thereby controlling the opening or closing of the first air inlets according to different operating modes to meet the needs of indoor cooling and / or dehumidification, especially being able to cool the room while dehumidifying, thereby improving the comfort of indoor users. The first air duct circulates normal temperature or hot air that has been cooled and condensed and heated.

[0043] In some embodiments, the first air inlet end further includes a third air inlet 622, which is a normally open air inlet. The third air inlet 622 is spaced apart from the first air inlet 621, and there is a space between two adjacent first air inlets 621. This is a further preferred structural form of the first air duct of the present invention. The provision of the third air inlet creates a normally open air inlet, effectively dissipating heat from the condenser, thereby ensuring the normal and efficient operation of the refrigeration cycle, ensuring the normal evaporation heat absorption of the evaporator, and the normal compression function of the compressor.

[0044] In some embodiments, the second air inlet end of the second air duct 103 includes a plurality of second air inlets 1031, and a second air control structure 104 is provided at the second air inlet 1031. There are multiple second air control structures 104, and each second air control structure 104 is provided in a one-to-one correspondence with the second air inlet 1031. The second air control structure 104 can be controlled to open and close the second air inlet 1031. This is a preferred structural form of the second air duct of the present invention, that is, air can be introduced into the second air duct through the plurality of second air inlets, and the second air control structure can control the opening and closing of the second air inlets, thereby controlling the second air inlets to be opened or closed according to different operating modes to meet the needs of indoor cooling and / or dehumidification, especially being able to cool the room while dehumidifying, thereby improving indoor user comfort; the second air duct circulates cooled air.

[0045] like Figure 2 The dehumidification air duct and the cold air duct of the present invention share a set of evaporator 3 and condenser 5.

[0046] The evaporator 3 is positioned horizontally near the air inlet. The dehumidification duct component 6 is located behind the evaporator, while the condenser 5 and the brushless fan (first fan 63) are placed side by side inside the dehumidification duct component 6. The cold air duct is also located behind the evaporator, symmetrically on the other side of the dehumidification duct component 6. The dehumidifier duct component 6 and the cold air duct component 10 each further include a first air control structure 61 (first air control plate) and a second air control structure 104 (second air control plate). Figure 2 In this state, both air control plates are open. The outside air flows through the evaporator 3 and is subjected to the negative pressure in the dehumidification duct component 6 and the cold air duct component 10, and flows into the inside of each. The air flow direction in the dehumidifier duct component 6 is that the air passes through the evaporator 3 and enters the dehumidification duct and then flows to the condenser 5, generating dry air, which is then drawn out of the machine by the first fan 63. The air flow direction in the cold air duct component 10 is that the air passes through the evaporator 3 and flows into the inside of the evaporator 3, and then is drawn out of the machine, generating negative pressure due to the rotation of the fan. This is the refrigeration dehumidifier state.

[0047] like Figure 3 Another view of the damper is shown. The first air duct 62 and the second air duct 103 are each provided with multiple openings (including the first air inlet 621 provided on the first air duct 62 and the second air inlet 1031 provided on the second air duct 103) of the same size as the normal opening (the third air inlet 622). These openings are evenly distributed on the side of the first air duct 62 and the second air duct 103 that is closer to the evaporator 3. The first air control structure 61 and the second air control structure 104 are respectively installed on the side of the first air duct 62 and the second air duct 103 that are provided with the normal opening.

[0048] The first air control structure 61 includes four blades, while the second air control structure 104 includes five blades. Therefore, the first air duct 62 has a permanent opening (the third air inlet 622), which is not affected by the opening and closing of the first air control structure 61. This permanent opening allows air to circulate regardless of the machine's setting. A permanent opening is left to allow a small amount of cold air to enter and dissipate heat for the condenser. The first and second air control structures 61 and 104 are driven to open and close by the drive motor component 9.

[0049] like Figure 4a-4b As shown, A is the cooling air direction, B is the drying air direction, and C is the inlet air direction. Moist air enters the machine through the inlet, and C is the inlet air direction. A is the cooling air direction, flowing out of the machine through the top outlet. B is the drying air direction, flowing out of the machine through the bottom outlet.

[0050] In some embodiments, a drive motor component 9 is further included. The drive motor component 9 is electrically connected to the first wind control structure 61 and the second wind control structure 104, respectively, and can drive the first wind control structure 61 and the second wind control structure 104 to move. The first wind control structure 61 and the second wind control structure 104 are both wind deflectors. The present invention also uses the drive motor component to simultaneously drive the first and second wind control structures to move, thereby achieving the purpose and effect of separately opening the first and second air inlets. The two wind control structures are preferably wind deflectors, which can simultaneously open and close the air inlets and adjust the air inlet opening and air volume.

[0051] In some embodiments, the dehumidification air duct component 6 further includes a first fan 63, which is disposed in the first air duct 62 and is located downstream of the condenser 5 along the air flow direction. The cold air dehumidifier further includes a first air outlet 81, which is connected to the first air duct 62. The first fan 63 can drive the gas in the first air duct 62 that has undergone heat exchange with the condenser 5 to be blown out from the first air outlet 81.

[0052] The cold air duct component 10 also includes a second fan, which is arranged in the second air duct 103. The cold air dehumidifier also includes a second air outlet 41, which is connected to the second air duct 103. The second fan can drive the gas in the second air duct 103 to be blown out from the second air outlet 41.

[0053] The present invention also achieves the function and effect of driving the airflow from the first air inlet into the first air duct through the first fan set in the first air duct, and exchanges heat with the condenser to ensure that the temperature of the air after dehumidification does not decrease; the second fan set in the second air duct can drive the airflow from the second air inlet into the second air duct, thereby achieving the function and effect of providing cold air to the room.

[0054] In some embodiments, the first fan 63 includes an axial flow blade 631 and a first motor, the cold air dehumidifier includes a panel 8, the first air outlet 81 is provided on the panel 8, the panel 8 is provided in front of the first air duct 62 and the second air duct 103, and the first air outlet 81 is connected to the first air duct along the axis direction of the axial flow blade 631;

[0055] The second fan includes a centrifugal fan blade 101 and a second motor 102, the cold air type dehumidifier includes a top cover 4, the second air outlet 41 is arranged on the top cover 4, the top cover 4 is connected to the upper end of the second air duct 103, and the second air outlet 41 is connected to the second air duct 103 along the radial direction of the centrifugal fan blade 101.

[0056] These are two different structural forms of the fans of the present invention. The first fan includes axial flow blades and a first motor, which can form an axially driven air supply effect, that is, the airflow flows along the first air duct, and does not change direction and is blown into the room through the first air outlet on the panel along the axial direction of the axial flow blades, thereby forming an effect of indoor dehumidified air blowing directly into the room; the second fan includes centrifugal blades and a second motor, thereby forming a radially driven air supply effect. The airflow flows along the second air duct, passes through the centrifugal blades, and then changes direction by 90° and is blown upward in the radial direction from the second air outlet on the top cover, thereby forming an effect of indoor cooling and upward air outlet.

[0057] In some embodiments, it also includes a rear shell 2, a chassis 13, a first side panel 14 and a second side panel 7. The rear shell 2, the first side panel 14, the second side panel 7, the top cover 4, the chassis 13 and the panel 8 together constitute the shell structure of the cold air type dehumidifier, and the rear shell 2 is arranged opposite to the panel 8. A fourth air inlet 21 is provided on the rear shell 2. The evaporator 3 is located between the rear shell 2 and the first air duct 62. At the same time, the evaporator 3 is located between the rear shell 2 and the second air duct 103. The fourth air inlet 21 can inhale air and reach the evaporator 3 for heat exchange; the first side panel 14 is located on the side of the second air duct 103 away from the first air duct 62, and the second side panel 7 is located on the side of the first air duct 62 away from the second air duct 103. The present invention also forms a shell structure of a cold air type dehumidifier through a rear shell, a chassis, two side panels and other structures together with a top cover and a panel. A fourth air inlet is provided on the rear shell to supply air to the interior of the dehumidifier. The air entering through the fourth air inlet first exchanges heat with the evaporator and is cooled and cooled. The condensed water after condensation is received by a water receiving tray to form dehumidification. The cooled cold air can enter the first and second air ducts respectively for heating or not heating, and can achieve the effect of providing cold air through the second air duct during dehumidification, and can achieve the effect of cooling during dehumidification.

[0058] In some embodiments, the system further includes a water receiving pan 11, a water collecting tank 1, and a compressor 12. The water receiving pan 11 is disposed below the evaporator 3 to receive condensed water generated by the evaporator 3. The water collecting tank 1 and the compressor 12 are both located below the water receiving pan 11, and the water collecting tank 1 is connected to a drain port 111 of the water receiving pan 11. The present invention also utilizes the water receiving pan and the water collecting tank to receive condensed water generated by the evaporator and collect it in the water collecting tank. The compressor provides the power to drive the refrigerant circulation and boost the pressure.

[0059] This invention utilizes a new air duct system configuration architecture, employing a horizontally parallel dual duct layout. The dual fan duct setup achieves optimal configuration of air heat exchange and air flow between the evaporator and condenser. The cooling and dehumidification mode, powerful cooling mode, and efficient dehumidification mode can be set to achieve cooling and dehumidification functions, powerful cooling functions, and efficient dehumidification functions, respectively. The specific implementation method is as follows:

[0060] The water pan 11 is provided with a drain port 111. The evaporator 3 and condenser 5 are placed above the water pan 11, with the condenser 5 being located within the air duct 62. A compressor 12 and a water collection tank 1 are located below the water pan. Condensed water generated by the dehumidification system falls into the water pan, flows along the guide ribs on the pan, converges into the drain port 111, and finally enters the water collection tank 1.

[0061] In some embodiments, a connecting hole is further provided at the junction of the first air duct 62 and the second air duct 103. The position between the condenser 5 and the first fan 63 is opposite to the connecting hole. A sealing structure 15 is provided at the connecting hole, and the sealing structure 15 can be controlled to open and close the connecting hole. The present invention also provides a connecting hole between the two air ducts and a sealing structure at the connecting hole. The position of the connecting hole is opposite to the position between the condenser and the first fan. This effectively opens the sealing structure in the high-efficiency dehumidification mode, allowing the air in the first air duct that has been cooled, dehumidified, and heated to be blown out through the second air duct by centrifugal blades, thereby improving the driving force.

[0062] The present invention further provides a control method for a cold air dehumidifier as described in any of the preceding items, characterized in that: when the cold air dehumidifier includes both a first air control structure 61 and a second air control structure 104: the control method includes:

[0063] a judging step of judging whether the desired operating mode of the cold air dehumidifier is a cooling and dehumidification mode, a powerful cooling mode, or a high-efficiency dehumidification mode; wherein the dehumidification capacity of the high-efficiency dehumidification mode is greater than that of the cooling and dehumidification mode, and the cooling capacity of the powerful cooling mode is greater than that of the cooling and dehumidification mode;

[0064] Control step: when the required operating mode of the cold air type dehumidifier is the cooling and dehumidification mode, control the first air control structure 61 to open the first air inlet 621, and control the second air control structure 104 to open the second air inlet 1031; when the required operating mode of the cold air type dehumidifier is the strong cooling mode, control the first air control structure 61 to close the first air inlet 621, and control the second air control structure 104 to open the second air inlet 1031; when the required operating mode of the cold air type dehumidifier is the high-efficiency dehumidification mode, control the first air control structure 61 to open the first air inlet 621, and control the second air control structure 104 to close the second air inlet 1031.

[0065] The present invention controls the direction of the air control plate via a control panel, enabling powerful cooling mode, efficient dehumidification mode, and cooling and dehumidification mode, respectively achieving maximum cooling capacity, maximum dehumidification capacity, and simultaneous cooling and dehumidification. This solves the problem of dehumidifiers not cooling properly and the problem of excessively high indoor temperatures due to long-term operation of dehumidifiers with limited functionality. The dual-fan air duct arrangement ensures optimal heat exchange and air flow between the evaporator and condenser. The staggered hot and cold air outlets of the present invention result in a simple, compact, and small overall structure.

[0066] Through the above layout structure, the operation method of the cold air dehumidifier is as follows:

[0067] 1. When the whole machine is powered on and started, the evaporator 3 and the condenser 5 compress the internal refrigerant circulation through the compressor 12 to achieve the purpose of cooling and dehumidification respectively. The driving motor component 9 drives the first wind control structure 61 and the second wind control structure 104 to open. The brushless motor (first motor) rotates with the brushless fan blades (axial fan blades 631), and the second motor 102 starts to rotate with the centrifugal fan blades 101. At this time, the dual motors and dual air ducts generate corresponding negative pressure, and the air is sucked into the corresponding air duct components. The processed air is blown out of the outside of the whole machine in the axial and radial directions. Run the cooling and dehumidification mode

[0068] 2. When the cooling and dehumidification mode is turned on, the air flow direction is as follows: Figure 5 . A dual air duct structure is placed side by side horizontally, sharing a common evaporator. The driving motor component 9 drives the first air control structure 61 and the second air control structure 104 to the open state. At this time, air passing through the evaporator 3 flows into both air ducts. The air flowing through the dehumidification duct component 6 is processed by the condenser 5 and then discharged to the outside of the whole machine. The cold air duct component 10 directly discharges the generated cold air to the outside of the whole machine. The whole machine can achieve simultaneous cooling and dehumidification.

[0069] 3. When the strong cooling mode is turned on, the air flow direction is as follows Figure 6 . The driving motor component 9 drives the first wind control structure 61 to close, and the second wind control structure 104 is in an open state. At this time, most of the air passing through the evaporator 3 will flow to the cold air duct component 10, and then flow to the outside of the whole machine. Because there is a permanent opening (the third air inlet 622) in the first air duct 62. Therefore, a small part of the air passing through the evaporator 3 will flow to the dehumidification duct component 6, and the dry air generated by the dehumidifier duct will flow to the outside of the whole machine (the condenser 5 will generate heat, and a permanent opening is set to discharge part of the generated heat through airflow. A small part of the cold air passing through the evaporator can dissipate heat to the condenser 5, thereby improving the dehumidification efficiency). Similarly, in order to maximize cooling, the speed of the second motor 102 can be increased through the control function, and the speed of the brushless motor (first fan 63) can be reduced at the same time. At this time, the air volume of the cold air duct is greater than the air volume of the dehumidification duct. If the hot dry air does not need to be discharged into the room, an exhaust pipe can be connected to the air outlet to discharge the hot air to the outside.

[0070] 4. When the high-efficiency dehumidification mode is turned on, the air flow direction is as follows: Figure 7 The drive motor 9 drives the first air control structure 61 to open, while the second air control structure 104 is closed. At this point, all air passing through the evaporator 3 flows to the dehumidification duct component 6. This ensures that all air generated by the evaporator 3 is used for dehumidification, achieving maximum utilization of the dehumidification capacity. At this point, no air is flowing through the cold air duct component 10, and the second motor 102 can be turned off using the control function. Similarly, the dehumidification capacity can be adjusted by adjusting the speed of the first fan 63.

[0071] The dehumidifier has three working modes: strong cooling mode, high-efficiency dehumidification mode and cooling and dehumidification mode. In strong cooling mode, the dehumidification air duct inlet is closed, and cold air is blown to the user's specific position for maximum efficiency to cool down. The dehumidifier air duct is provided with a normally open air inlet, so it also has a dehumidification function. In high-efficiency dehumidification mode, the cold air duct is closed, and all the air passing through the evaporator enters the dehumidification air duct, achieving maximum dehumidification capacity. In cooling and dehumidification mode, the two air ducts discharge air at the same time, with cold air coming out from the top and hot air coming out from the bottom, achieving the function of simultaneous cooling and dehumidification.

[0072] In some embodiments, when a communication hole is further provided at the position where the first air duct 62 and the second air duct 103 meet, and a sealing structure 15 is provided at the communication hole:

[0073] The control step also controls the movement of the sealing structure 15 to open the connecting hole when the cold air type dehumidifier is required to operate in the high-efficiency dehumidification mode, so that part of the gas after heat exchange through the condenser 5 enters the second air duct 103, and part of the gas still flows in the first air duct 62.

[0074] The present invention can add a switchable sealing plate to the side wall of the air duct between the condenser and the brushless motor. When the machine is turned on in high-efficiency dehumidification mode, the sealing plate is in the open state. Wet air enters the evaporator from direction C. By controlling and adjusting the state of the air duct wind control plate, the wind passing through the evaporator is converged and flows into the dehumidification air duct, and then passes through the condenser to generate dry wind. Part of the generated dry wind is blown out of the machine along the original trajectory, and part can be divided into another air duct to be blown out of the machine (multi-directional air outlet, more uniform indoor air, and improved user comfort). At this time, the upper and lower air outlets are both dry winds, which can achieve efficient multi-directional heat dissipation at the same time.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A cold air dehumidifier, characterized by: include: An evaporator (3), a dehumidification air duct component (6) and a cold air duct component (10), wherein the dehumidification air duct component (6) includes a first air duct (62) and a condenser (5), and the cold air duct component (10) includes a second air duct (103). The condenser (5) is arranged in the first air duct (62), and the first air duct (62) and the second air duct (103) are arranged side by side. The evaporator (3) is simultaneously located upstream of the first air inlet end of the first air duct (62) along the air flow direction and upstream of the second air inlet end of the second air duct (103) along the air flow direction. At least part of the air after heat exchange with the evaporator (3) can enter the first air duct (62) and enter the room after heat exchange with the condenser (5), thereby completing dehumidification. At least part of the air after heat exchange with the evaporator (3) can enter the room through the second air duct (103), thereby forming refrigeration. The first air inlet end of the first air duct (62) includes a plurality of first air inlets (621), and a first air control structure (61) is provided at the first air inlet (621). There are a plurality of first air control structures (61), and the first air control structures (61) are provided in a one-to-one correspondence with the first air inlets. The first air control structure (61) can be controlled to move to open and close the first air inlet (621). The first air inlet end further comprises a third air inlet (622), and the third air inlet (622) is a normally open air inlet; the third air inlet (622) and the first air inlet (621) are spaced apart, and two adjacent first air inlets (621) are spaced apart; The second air inlet end of the second air duct (103) comprises a plurality of second air inlets (1031), a second air control structure (104) is provided at the second air inlets (1031), there are a plurality of second air control structures (104), and the second air control structures (104) are provided in a one-to-one correspondence with the second air inlets (1031), and the second air control structures (104) can be controlled to move so as to open and close the second air inlets (1031); The dehumidification air duct component (6) further includes a first fan (63), which is arranged in the first air duct (62) and is located downstream of the condenser (5) along the air flow direction. A communication hole is further provided at a position where the first air duct (62) and the second air duct (103) meet, and a position between the condenser (5) and the first fan (63) is opposite to the communication hole. A sealing structure (15) is provided at the communication hole, and the sealing structure (15) can be controlled to move to open and close the communication hole. When the sealing structure (15) moves to open the communicating hole, part of the gas after heat exchange in the condenser (5) enters the second air duct (103), and part of the gas still flows in the first air duct (62).

2. The cold air dehumidifier according to claim 1, characterized in that: The invention also includes a driving motor component (9), wherein the driving motor component (9) is electrically connected to the first wind control structure (61) and the second wind control structure (104), respectively, and can drive the first wind control structure (61) and the second wind control structure (104) to move respectively; the first wind control structure (61) and the second wind control structure (104) are both wind deflector structures.

3. The cold air dehumidifier according to claim 1, characterized in that: The cold air dehumidifier further comprises a first air outlet (81), the first air outlet (81) being in communication with the first air duct (62), and the first fan (63) being capable of driving the gas in the first air duct (62) after heat exchange with the condenser (5) to be blown out from the first air outlet (81); The cold air duct component (10) further includes a second fan, which is arranged in the second air duct (103). The cold air dehumidifier further includes a second air outlet (41), which is connected to the second air duct (103). The second fan can drive the gas in the second air duct (103) to be blown out from the second air outlet (41).

4. The cold air dehumidifier according to claim 3, characterized in that: The first fan (63) includes an axial flow blade (631) and a first motor, the cold air dehumidifier includes a panel (8), the first air outlet (81) is arranged on the panel (8), the panel (8) is arranged in front of the first air duct (62) and the second air duct (103), and the first air outlet (81) is connected to the first air duct along the axial direction of the axial flow blade (631); The second fan comprises a centrifugal fan blade (101) and a second motor (102); the cold air dehumidifier comprises a top cover (4); the second air outlet (41) is arranged on the top cover (4); the top cover (4) is connected to the upper end of the second air duct (103); and the second air outlet (41) is connected to the second air duct (103) along the radial direction of the centrifugal fan blade (101).

5. The cold air dehumidifier according to claim 4, characterized in that: The dehumidifier further comprises a rear shell (2), a chassis (13), a first side plate (14) and a second side plate (7); the rear shell (2), the first side plate (14), the second side plate (7), the top cover (4), the chassis (13) and the panel (8) together constitute the shell structure of the cold air type dehumidifier, and the rear shell (2) and the panel (8) are arranged opposite to each other; a fourth air inlet (21) is arranged on the rear shell (2); the evaporator (3) is located between the rear shell (2) and the first air duct (62), and the evaporator (3) is located between the rear shell (2) and the second air duct (103); the fourth air inlet (21) can inhale air and reach the evaporator (3) for heat exchange; the first side plate (14) is located on the side of the second air duct (103) away from the first air duct (62), and the second side plate (7) is located on the side of the first air duct (62) away from the second air duct (103).

6. The cold air dehumidifier according to any one of claims 1 to 5, characterized in that: It also includes a water receiving pan (11), a water collecting tank (1) and a compressor (12); the water receiving pan (11) is arranged below the evaporator (3) to receive condensed water generated by the evaporator (3); the water collecting tank (1) and the compressor (12) are both located below the water receiving pan (11), and the water collecting tank (1) is connected to the drain outlet (111) of the water receiving pan (11).

7. A control method for a cold air dehumidifier according to any one of claims 1 to 6, characterized in that: When the cold air dehumidifier includes both a first air control structure (61) and a second air control structure (104), the control method includes: a judging step of judging whether the desired operating mode of the cold air dehumidifier is a cooling and dehumidification mode, a powerful cooling mode, or a high-efficiency dehumidification mode; wherein the dehumidification capacity of the high-efficiency dehumidification mode is greater than that of the cooling and dehumidification mode, and the cooling capacity of the powerful cooling mode is greater than that of the cooling and dehumidification mode; The control step comprises: when the desired operation mode of the cold air type dehumidifier is the cooling and dehumidification mode, controlling the first air control structure (61) to open the first air inlet (621), and controlling the second air control structure (104) to open the second air inlet (1031); when the desired operation mode of the cold air type dehumidifier is the strong cooling mode, controlling the first air control structure (61) to close the first air inlet (621), and controlling the second air control structure (104) to open the second air inlet (1031); when the desired operation mode of the cold air type dehumidifier is the high-efficiency dehumidification mode, controlling the first air control structure (61) to open the first air inlet (621), and controlling the second air control structure (104) to close the second air inlet (1031); When a connecting hole is provided at the position where the first air duct (62) and the second air duct (103) meet, and a sealing structure (15) is provided at the connecting hole: The control step further controls the sealing structure (15) to move to open the connecting hole when the desired operating mode of the cold air type dehumidifier is the high-efficiency dehumidification mode, so that part of the gas after heat exchange in the condenser (5) enters the second air duct (103), and part of the gas still flows in the first air duct (62).

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