Dehumidifier

Abstract

A dehumidifier, comprising a housing, an air inlet and an air outlet being formed on the housing. An air channel is formed between the air inlet and the air outlet; an evaporator, a condenser, and a fan device are mounted in the air channel; the evaporator is located at the position of the air channel close to the air inlet, the fan device is located at the position of the air channel close to the air outlet, and the condenser is located between the evaporator and the fan device; and an air-guiding device is fixed between the evaporator and the condenser. The air-guiding device is provided with a first air-guiding port that is openable or closable; when the first air-guiding port is closed, liquid water condensed on the outer surface of the evaporator can freeze into frost; and when the first air-guiding port is opened, external air enters the air channel through the air inlet and flows through the outer surface of the evaporator, so that the frost on the outer surface of the evaporator is melted into condensed water to take away dirt, thereby achieving a self-cleaning function. The dehumidifier has a simple structure, low cost, and high cleaning efficiency.

Description

Dehumidifier TECHNICAL FIELD

[0001] The utility model relates to dehumidifier technical field, especially point to a dehumidifier. BACKGROUND

[0002] Dehumidifier product is usually configured compressor and heat exchanger, in order to guarantee heat exchange efficiency, heat exchanger fin is close multilayer sheet shape, when the machine runs, a large amount of air passes through heat exchanger, wherein the dust and other dirt that are attached can be adsorbed on the fin, block the ventilation and influence heat exchange effect, also easy to breed bacteria and affect user health. But because of the close arrangement of fin, user is difficult to clean.

[0003] The Chinese invention patent with patent announcement number CN108895619A discloses a dehumidifier self-cleaning method, device and dehumidifier, which realizes water spraying and automatic cleaning of the dehumidifier by setting a spraying device and controlling the spraying device. However, the prior art needs to combine structures such as a spraying device, a water pump, a water tank, a control unit and a detection unit to realize the self-cleaning of the dehumidifier, which has a complex structure, high cost and low cleaning efficiency.

[0004] Therefore, the prior art still needs to be improved and developed. TECHNICAL SOLUTION

[0005] In view of the problems of the prior art, the utility model provides a dehumidifier with simple structure, low cost and high cleaning efficiency.

[0006] In order to achieve the above purpose, the technical scheme applied by the utility model is as follows:

[0007] The application relates to a dehumidifier which comprises a shell, an air inlet and an air outlet arranged on the shell, an air duct formed between the air inlet and the air outlet, an evaporator, a condenser and a fan device arranged in the air duct, the evaporator being arranged at a position close to the air inlet of the air duct, the fan device being arranged at a position close to the air outlet of the air duct, the condenser being arranged between the evaporator and the fan device, and a wind guide device fixed between the evaporator and the condenser; the wind guide device is provided with an openable and closable air guide opening I; when the air guide opening I is closed, liquid water condensed on the outer surface of the evaporator can form frost; when the air guide opening I is opened, external air enters the air duct through the air inlet and flows through the outer surface of the evaporator, so that the frost on the outer surface of the evaporator is melted into condensed water and dirt is removed. In this way, when the dehumidifier is in normal dehumidifying operation, the air guide opening I is opened and the fan device is operated, so that the air duct forms a negative pressure to generate suction force, and the external air is discharged through the air inlet, the evaporator, the air guide opening I, the condenser and the air outlet; when the dehumidifier is in self-cleaning operation, the air guide opening I is closed, the air flow between the evaporator and the condenser is blocked by the closed air guide opening I, the evaporator continuously cools down during operation, and when the low temperature generated by the evaporator during operation cannot be completely removed by the air flow, the liquid water condensed on the outer surface of the evaporator can form frost; when the air guide opening I is opened again, the air flow between the evaporator and the condenser can pass through the opened air guide opening I, and the dehumidifier is in normal dehumidifying state, so that the frost on the outer surface of the evaporator is melted into condensed water and dirt is removed, thereby realizing the self-cleaning function. The dehumidifier has simple structure, low cost and high cleaning efficiency. In actual application, the fins of the evaporator are closely arranged in multiple layers, and when the dehumidifier is operated, external air enters the air duct through the air inlet and flows through the fins of the evaporator.

[0008] According to the above scheme, the wind guide device comprises a bracket, a fan blade and a driving assembly, the bracket is provided with the air guide opening I, the fan blade is movably arranged on the bracket, and the driving assembly is used for driving the fan blade to rotate and realize opening or closing of the air guide opening I. In this way, the fan blade is driven to rotate by the driving assembly, and the air guide opening I is opened or closed, so that the structure is simple.

[0009] According to the above scheme, the bracket is provided with a grid I, the fan blade has a plurality of fan blades, the plurality of fan blades are hingedly arranged on one side of the grid I away from the evaporator, the plurality of fan blades are connected through a connecting rod in transmission, and the driving assembly comprises a stepping motor, and the output end of the stepping motor is fixedly connected with the fan blade. In this way, the fan blade is driven to rotate forward and backward by the stepping motor, the plurality of fan blades can be synchronously rotated due to the transmission connection through the connecting rod, the air guide opening I is in an open state when the fan blade is rotated to be unfolded relative to the grid I, and the air guide opening I is in a closed state when the fan blade is rotated to be folded relative to the grid I. It should be noted that the plurality of fan blades are hingedly arranged on one side of the grid I away from the evaporator, so that the fan blade and the evaporator are spaced apart by a certain distance through the grid I, which can effectively prevent the frost on the outer surface of the evaporator from being attached to the fan blade, and further ensure that the fan blade can be reciprocally rotated relative to the grid I.

[0010] According to the above scheme, the gap between the bracket and the shell forms a normally open air guide port two, and the air inlet of the air guide port two is smaller than that of the air guide port one. In this way, when the air guide port one is closed, the air guide port two is always open, so that the condenser can operate normally, and the evaporator can continuously cool down during operation. In practical application, the airflow through the air guide port two cannot completely remove the low temperature generated by the evaporator.

[0011] According to the above scheme, the evaporator and the condenser are respectively provided with a fixing edge plate for fixing the bracket. In this way, the bracket is fixed between the evaporator and the condenser through the two fixing edge plates on the evaporator and the condenser, which is convenient to assemble.

[0012] According to the above scheme, the fan device includes a centrifugal fan and a motor, the centrifugal fan is connected with the output end of the motor, and the motor is used to drive the centrifugal fan to rotate. In this way, the centrifugal fan is driven to rotate by the motor, so that the air duct forms a negative pressure to generate suction, and the gas outside enters the air duct through the air inlet.

[0013] According to the above scheme, the shell is provided with a compressor, the compressor is connected to the condenser through a pipeline, the condenser is connected to the evaporator through a pipeline, and the evaporator is connected to the compressor through a pipeline. In this way, the compressor, the condenser and the evaporator cooperate to form a refrigeration assembly. More specifically, the high-temperature and high-pressure refrigerant gas from the compressor enters the condenser to exchange heat, so that the gas changes into liquid and releases heat. At this time, the condenser generates high temperature. Through the throttling process of the capillary, low-temperature and low-pressure refrigerant liquid is generated, which enters the evaporator to exchange heat and absorb ambient heat, so that the liquid changes into gas and the temperature decreases. At this time, the evaporator generates low temperature, and the heat is discharged through the air duct to complete the dehumidification work.

[0014] According to the above scheme, the shell is provided with a water pan and a water tank, the water pan is arranged corresponding to the evaporator, and the water tank is arranged corresponding to the water pan. In this way, the condensed water and dirt after melting the frost on the outer surface of the evaporator are collected in the water pan and then stored in the water tank. More specifically, the water pan is located below the evaporator, and the drain hole of the water pan is connected to the water inlet of the water tank through a pipeline. When the condensed water and dirt after melting the frost fall into the water pan, they are discharged through the drain hole and stored in the water tank.

[0015] According to the scheme, the shell comprises a front plate, a rear plate, a top cover and a bottom plate fixedly connected, the air inlet is arranged on the rear plate, and the air outlet is arranged on the top cover; the rear plate is provided with a second grid corresponding to the air inlet, and the top cover is provided with a third grid corresponding to the air outlet. In this way, the air duct is designed in the upper part of the dehumidifier, and the air duct has an L-shaped structure, the air outlet of the air duct is arranged on the top cover, and the dehumidification effect is better; the second grid and the third grid are designed to filter the gas; more specifically, the garbage can be prevented from entering the dehumidifier.

[0016] According to the scheme, the front plate is provided with a control panel, and the bottom plate is provided with a moving roller. In this way, the operation is convenient, and the dehumidifier has a moving dehumidification function, and the dehumidification effect is better. Advantages

[0017] The utility model has the advantages of:

[0018] The utility model discloses the air outlet one closes, the airflow between evaporator and condenser is blocked by the closed air outlet one, and the evaporator continuously cools down in the work, when the low temperature generated in the work of the evaporator cannot be taken away by the airflow completely, the liquid water condensed on the outer surface of the evaporator can frost, when the air outlet one opens again, the airflow between the evaporator and the condenser can be conducted through the opened air outlet one, and the dehumidification state is normal, at this moment, the frost on the outer surface of the evaporator can melt into condensate water and take away the dirt, and then realize the self-cleaning function, and the structure is simple, the cost is lower, and the cleaning efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a schematic diagram of the dehumidifier of the utility model;

[0020] Fig. 2 is an exploded view of the dehumidifier of the utility model;

[0021] Fig. 3 is an assembly drawing of the evaporator, the air guide device and the condenser of the utility model;

[0022] Fig. 4 is a closed state diagram of the air outlet one of the utility model;

[0023] Fig. 5 is an airflow principle diagram of the closed state of the air outlet one of the utility model;

[0024] Fig. 6 is an open state diagram of the air outlet one of the utility model;

[0025] Fig. 7 is an airflow principle diagram of the open state of the air outlet one of the utility model.

[0026] In the drawings:

[0027] 1, front plate; 2, back plate; 3, grid two; 4, top cover; 5, air inlet; 6, evaporator; 7, stepper motor; 8, bracket; 9, connecting rod; 10, fan blade; 11, condenser; 12, side plate; 13, air duct; 14, air outlet; 15, centrifugal fan; 16, motor; 17, water pan; 18, compressor; 19, bottom plate; 20, water tank; 21, air guide one; 22, air guide two; 81, grid one. Best mode of the present application

[0028] The technical scheme of the present application will be described below in conjunction with the drawings and examples.

[0029] As shown in FIG. 1 to FIG. 7, the dehumidifier comprises a shell, the shell is provided with an air inlet 5 and an air outlet 14, an air duct 13 is formed between the air inlet 5 and the air outlet 14, an evaporator 6, a condenser 11 and a fan device are installed in the air duct 13, the evaporator 6 is located at a position close to the air inlet 5 of the air duct 13, the fan device is located at a position close to the air outlet 14 of the air duct 13, the condenser 11 is located between the evaporator 6 and the fan device, and a wind guide device is fixed between the evaporator 6 and the condenser 11; the wind guide device is provided with an openable or closable air guide one 21, when the air guide one 21 is closed, the liquid water condensed on the outer surface of the evaporator 6 can frost, when the air guide one 21 is opened, the external gas enters the air duct 13 through the air inlet 5 and flows through the outer surface of the evaporator 6, so that the frost on the outer surface of the evaporator 6 melts into condensate water and removes dirt. In this way, when the dehumidifier works normally, the air guide one 21 is opened, the fan device operates, a negative pressure is formed in the air duct 13 to generate suction, and the external gas is discharged through the air inlet 5, the evaporator 6, the air guide one 21, the condenser 11 and the air outlet 14; when self-cleaning works, the air guide one 21 is closed, the airflow between the evaporator 6 and the condenser 11 is blocked by the closed air guide one 21, the evaporator 6 continuously cools down during work, when the low temperature generated by the evaporator 6 during work cannot be completely taken away by the airflow, the liquid water condensed on the outer surface of the evaporator 6 can frost, when the air guide one 21 is opened again, the airflow between the evaporator 6 and the condenser 11 can be conducted through the opened air guide one 21, and the dehumidification state is normal, at this time, the frost on the outer surface of the evaporator 6 can melt into condensate water and remove dirt, thereby realizing the self-cleaning function, the structure is simple, the cost is low, and the cleaning efficiency is high.

[0030] In practical application, the fins of the evaporator 6 are closely arranged in multiple layers, when the dehumidifier operates, the external gas enters the air duct 13 through the air inlet 5 and flows through the fins of the evaporator 6.

[0031] In the embodiment, the air guide device comprises a support 8, a fan blade 10 and a driving assembly. The support 8 is provided with an air guide opening 21. The fan blade 10 is movably arranged on the support 8. The driving assembly is used to drive the fan blade 10 to rotate, so as to open or close the air guide opening 21. In this way, the fan blade 10 is driven to rotate by the driving assembly, so as to open or close the air guide opening 21. The structure is simple.

[0032] In the embodiment, the support 8 is provided with a grid 81. The fan blade 10 is hinged on one side of the grid 81 away from the evaporator 6. The plurality of fan blades 10 are connected by a connecting rod 9. The driving assembly comprises a stepping motor 7. The output end of the stepping motor 7 is fixedly connected with the fan blade 10. In this way, the fan blade 10 is driven to rotate by the stepping motor 7. Since the plurality of fan blades 10 are connected by the connecting rod 9, the plurality of fan blades 10 can rotate synchronously. When the fan blade 10 rotates to unfold relative to the grid 81, the air guide opening 21 is in an open state. When the fan blade 10 rotates to fold relative to the grid 81, the air guide opening 21 is in a closed state.

[0033] It should be noted that the plurality of fan blades 10 are hinged on one side of the grid 81 away from the evaporator 6. The fan blade 10 and the evaporator 6 are spaced apart by the grid 81. This can effectively prevent frost on the outer surface of the evaporator 6 from adhering to the fan blade 10, thereby ensuring that the fan blade 10 can rotate back and forth relative to the grid 81.

[0034] In the embodiment, a gap between the support 8 and the shell is formed with an always-open air guide opening 22. The air inlet of the air guide opening 22 is smaller than that of the air guide opening 21. In this way, when the air guide opening 21 is closed, the condenser 11 can normally operate under the action of the always-open air guide opening 22, thereby continuously cooling the evaporator 6 in operation.

[0035] In actual application, the airflow passing through the air guide opening 22 cannot take away all the low temperature generated by the evaporator 6.

[0036] In the embodiment, the evaporator 6 and the condenser 11 are respectively provided with a fixing side plate 12 for fixing the support 8. In this way, the support 8 is fixed between the evaporator 6 and the condenser 11 through the two fixing side plates 12 on the evaporator 6 and the condenser 11, so as to facilitate assembly.

[0037] In the embodiment, the fan device comprises a centrifugal fan 15 and a motor 16. The centrifugal fan 15 is connected with the output end of the motor 16. The motor 16 is used to drive the centrifugal fan 15 to rotate. In this way, the motor 16 drives the centrifugal fan 15 to rotate, so as to form negative pressure in the air duct 13 to generate suction force, and the air outside enters the air duct 13 through the air inlet 5.

[0038] In the embodiment, the housing is provided with a compressor 18, the compressor 18 is connected to the condenser 11 through a pipeline, the condenser 11 is connected to the evaporator 6 through a pipeline, and the evaporator 6 is connected to the compressor 18 through a pipeline. In this way, the compressor 18, the condenser 11 and the evaporator 6 cooperatively form a refrigeration assembly. More specifically, high-temperature and high-pressure refrigerant gas from the compressor 18 enters the condenser 11 to exchange heat, so that the gas changes into liquid and releases heat, at this time, the condenser 11 generates high temperature, and then the refrigerant liquid with low temperature and low pressure is generated through a capillary throttling process, enters the evaporator 6 to exchange heat, absorbs ambient heat, and thus changes from liquid to gas and reduces temperature, at this time, the evaporator 6 generates low temperature, and then the heat is discharged through the air duct 13 to complete the dehumidification work.

[0039] In the embodiment, the housing is provided with a water pan 17 and a water tank 20, the water pan 17 is arranged correspondingly to the evaporator 6, and the water tank 20 is arranged correspondingly to the water pan 17. In this way, the condensed water and dirt after the frost on the outer surface of the evaporator 6 is melted are collected by the water pan 17 and then stored in the water tank 20. More specifically, the water pan 17 is located below the evaporator 6, and the drain hole of the water pan 17 is connected to the water inlet of the water tank 20 through a pipeline, so that the condensed water and dirt after the frost on the outer surface of the evaporator 6 is melted fall into the water pan 17 and then are discharged to the water tank 20 through the drain hole and stored in the water tank 20.

[0040] In the embodiment, the housing includes a front plate 1, a rear plate 2, a top cover 4 and a bottom plate 19, the air inlet 5 is arranged on the rear plate 2, and the air outlet 14 is arranged on the top cover 4; the rear plate 2 is provided with a second grid 3 arranged correspondingly to the air inlet 5, and the top cover 4 is provided with a third grid 41 arranged correspondingly to the air outlet 14. In this way, the air duct 13 is designed on the upper part of the dehumidifier, and the air duct 13 has an L-shaped structure, the air outlet 14 of the air duct 13 is arranged on the top cover 4, and the dehumidification effect is better; the second grid 3 and the third grid 41 can filter the gas; more specifically, the garbage can be prevented from entering the dehumidifier.

[0041] In the embodiment, the front plate 1 is provided with a control panel, and the bottom plate 19 is provided with a moving roller. In this way, the dehumidifier is convenient to operate and has a moving dehumidification function, and the dehumidification effect is better.

[0042] The embodiments of the utility model are described above in combination with the drawings, but the utility model is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, rather than limiting, and a person skilled in the art can make many forms under the inspiration of the utility model without departing from the purpose of the utility model and the scope protected by the claims, which all belong to the protection scope of the utility model.

Claims

1. A dehumidifier comprising a housing, characterized in that: an air inlet and an air outlet are arranged on the housing, an air duct is formed between the air inlet and the air outlet, an evaporator, a condenser and a fan device are installed in the air duct, and a wind guide device is fixed between the evaporator and the condenser; an openable and closable air guide opening one is arranged on the wind guide device, when the air guide opening one is closed, liquid water condensed on the outer surface of the evaporator can form frost, and when the air guide opening one is opened, external gas enters the air duct through the air inlet and flows through the outer surface of the evaporator, so that the frost on the outer surface of the evaporator melts into condensed water and carries away dirt.

2. A dehumidifier as claimed in claim 1, wherein: The wind guide device comprises a bracket, a fan blade and a driving assembly, the bracket forms the air guide opening one, the fan blade is movably installed on the bracket, and the driving assembly is used to drive the fan blade to rotate to open or close the air guide opening one.

3. A dehumidifier as claimed in claim 2, wherein: A plurality of fan blades are hingedly connected on the side of the grid one away from the evaporator, and the plurality of fan blades are connected through connecting rods, the driving assembly comprises a stepping motor, and the output end of the stepping motor is fixedly connected with the fan blade.

4. The dehumidifier of claim 2, wherein: A normally open air guide opening two is formed in the gap between the bracket and the housing, and the air inlet amount of the air guide opening two is smaller than that of the air guide opening one.

5. The dehumidifier of claim 2, wherein: Fixed edge plates for fixing the bracket are arranged on the evaporator and the condenser.

6. The dehumidifier of claim 2, wherein: The fan device comprises a centrifugal fan wheel and a motor, the centrifugal fan wheel is connected with the output end of the motor, and the motor is used to drive the centrifugal fan wheel to rotate.

7. The dehumidifier of claim 2, wherein: A compressor is arranged in the housing, the compressor is connected with the condenser through a pipeline, the condenser is connected with the evaporator through a pipeline, and the evaporator is connected with the compressor through a pipeline.

8. The dehumidifier of claim 2, wherein: A water collecting tray and a water tank are arranged in the housing, the water collecting tray is arranged corresponding to the evaporator, and the water tank is arranged corresponding to the water collecting tray.

9. The dehumidifier of claim 2, wherein: The housing comprises a front plate, a rear plate, a top cover and a bottom plate which are fixedly connected, the air inlet is arranged on the rear plate, and the air outlet is arranged on the top cover; the rear plate is provided with a grid two corresponding to the air inlet, and the top cover is provided with a grid three corresponding to the air outlet.

10. A dehumidifier as claimed in claim 9, wherein: A control panel is arranged on the front plate, and a moving roller is arranged on the bottom plate.

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