CN113719924A - Dehumidifier of high-efficient dehumidification - Google Patents
Dehumidifier of high-efficient dehumidification Download PDFInfo
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- CN113719924A CN113719924A CN202111079147.0A CN202111079147A CN113719924A CN 113719924 A CN113719924 A CN 113719924A CN 202111079147 A CN202111079147 A CN 202111079147A CN 113719924 A CN113719924 A CN 113719924A
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- Prior art keywords
- dehumidification
- air duct
- evaporator
- frost
- frost prevention
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
Abstract
The invention discloses a dehumidifier with high-efficiency dehumidification, which comprises: the device comprises a fan, a condenser, an evaporator, a compressor and a shell; the fan, the condenser, the evaporator and the compressor are mounted to the casing; the casing is provided with an air duct cavity and a dehumidifying air outlet; the fan is arranged in the air duct cavity; the dehumidifier with high-efficiency dehumidification has a dehumidification state for dehumidification operation; in a dehumidification state, the compressor works, and the fan drives airflow to flow through the evaporator and the condenser, then the airflow enters the air duct cavity and is discharged from the dehumidification air outlet; the dehumidifier of high-efficient dehumidification still includes: a sensor for detecting a temperature of the evaporator; the dehumidifier with high-efficiency dehumidification also has a frost prevention state for preventing the evaporator from frosting; when the temperature of the evaporator detected by the sensor is lower than the preset temperature, the dehumidifier with high-efficiency dehumidification is switched to a frost prevention state from a dehumidification state. The invention has the beneficial effects that the evaporator can be effectively prevented from frosting, so that the dehumidification efficiency is improved and high-efficiency dehumidification is realized.
Description
Technical Field
The invention relates to a dehumidifier, in particular to a dehumidifier capable of efficiently dehumidifying.
Background
Dehumidifiers are also known as dehumidifiers, dryers, dehumidifiers. The dehumidifier is composed of a compressor, a heat exchanger, a fan, a water tank and a casing. The fan sucks the damp air into the machine, the damp air passes through the heat exchanger, water molecules in the air are condensed into water drops, the treated dry air is discharged out of the machine, and the indoor humidity is kept at the proper relative humidity through circulation.
When the dehumidifier carries out dehumidification operation, the surface of the evaporator is easy to frost, and the dehumidification efficiency is influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the dehumidifier with high efficiency dehumidification, which can effectively avoid frosting of the evaporator, thereby improving the dehumidification efficiency and realizing high efficiency dehumidification.
In order to achieve the above object, the present invention adopts the following technical solutions:
an efficient dehumidification dehumidifier comprising: the device comprises a fan, a condenser, an evaporator, a compressor and a shell; the fan, the condenser, the evaporator and the compressor are mounted to the casing; the casing is provided with an air duct cavity and a dehumidifying air outlet; the fan is arranged in the air duct cavity; the dehumidifier with high-efficiency dehumidification has a dehumidification state for dehumidification operation; in a dehumidification state, the compressor works, and the fan drives airflow to flow through the evaporator and the condenser, then the airflow enters the air duct cavity and is discharged from the dehumidification air outlet;
the dehumidifier of high-efficient dehumidification still includes: a sensor for detecting a temperature of the evaporator; the dehumidifier with high-efficiency dehumidification also has a frost prevention state for preventing the evaporator from frosting; when the temperature of the evaporator is detected to be lower than the preset temperature by the sensor, the dehumidifier with high-efficiency dehumidification is switched from a dehumidification state to a frost prevention state; wherein the preset temperature is more than or equal to-1 ℃ and less than or equal to 0 ℃; and in the frost prevention state, the compressor stops working, and the fan drives at least part of airflow to be discharged from the air duct cavity and then blown to the evaporator.
Furthermore, the casing is provided with a frost-proof air guide duct communicated to the duct cavity; the dehumidifier of high-efficient dehumidification still includes: the frost prevention air duct door and the power device for driving the frost prevention air duct door to move; the power device is mounted to the housing; the frost prevention air duct door is provided with a dehumidification working position and a frost prevention working position; the power device drives the frost prevention air duct door to move between a dehumidification working position and a frost prevention working position;
when the dehumidification working position is adopted, the frost-proof air duct door closes the frost-proof air guide duct to prevent air flow in the air duct cavity from entering the frost-proof air guide duct; when the defrosting device is in a defrosting working position, the defrosting air guide duct is communicated with the duct cavity so as to guide airflow to blow towards the evaporator.
Further, when the sensor detects that the temperature of the evaporator is lower than the preset temperature, the power device drives the frost prevention air duct door to move from the dehumidification working position to the frost prevention working position.
Further, when the sensor detects that the temperature of the evaporator is higher than the preset temperature at the preset time interval, the compressor is started, the power device drives the frost prevention air duct door to move from the frost prevention working position to the dehumidification working position, and the dehumidifier for efficient dehumidification is switched to the dehumidification state from the frost prevention state.
Further, when the sensor continuously detects that the temperature of the evaporator is higher than the preset temperature by at least 1 ℃ for a preset time interval, the compressor is started, the power device drives the anti-frost air duct door to move from the anti-frost working position to the dehumidification working position, and the dehumidifier for efficient dehumidification is switched from the anti-frost state to the dehumidification state.
Further, the preset temperature is 0 ℃; when the sensor detects that the temperature of the evaporator is not lower than 1 ℃ for 5 minutes, the compressor is started, the power device drives the frost prevention air duct door to move from the frost prevention working position to the dehumidification working position, and the efficient dehumidification dehumidifier is switched to the dehumidification state from the frost prevention state.
Furthermore, when the frost-proof air duct door is located at the frost-proof working position, the frost-proof air duct door extends into the air duct cavity to guide the air flow to enter the frost-proof air guide duct.
Further, when the anti-frost air duct door is located at the anti-frost working position, the anti-frost air duct door at least partially blocks the air flow in the air duct cavity from being discharged from the dehumidification air outlet.
Furthermore, the cross-sectional area of the anti-frost air guide duct is gradually reduced in the direction of the movement of the guide airflow.
Further, the fan, the condenser and the evaporator are arranged in parallel; the dehumidification air outlet is positioned above the fan; the frost-proof air guide duct is positioned above the condenser and the evaporator.
Furthermore, an air duct outlet of the frost-proof air guide duct is positioned above the evaporator; the casing is provided with a water collecting tank; the water collecting tank is positioned below the evaporator.
Further, the air outlet direction of the air duct outlet of the frost-proof air guide duct and the fin direction of the evaporator are both vertical directions.
A dehumidifier comprising: the device comprises a fan, a condenser, an evaporator, a compressor and a shell; the fan, the condenser, the evaporator and the compressor are mounted to the casing; the casing is provided with an air duct cavity and a dehumidifying air outlet; the fan is arranged in the air duct cavity;
the casing is provided with a frost-proof air guide duct communicated to the duct cavity; the dehumidifier still includes: a frost prevention air duct door capable of sealing the frost prevention air guide air duct;
when the frost prevention air duct door is closed, the fan drives airflow to flow through the evaporator and the condenser, then the airflow enters the air duct cavity and is discharged from the dehumidification air outlet; when the frost prevention air duct door is opened, the fan drives at least part of air flow to enter the frost prevention air guide air duct from the air duct cavity and blow towards the evaporator through the guidance of the frost prevention air guide air duct.
Further, when the frost prevention air duct door is closed, the fan drives air flow to sequentially penetrate through the evaporator and the condenser along the horizontal direction and then enter the air duct cavity; when the frost prevention air duct door is opened, the air flow discharged from the frost prevention air duct blows to the evaporator along the vertical direction.
Further, when the frost prevention air duct door is closed, the air flow is upwards discharged from the dehumidification air outlet; when the frost-proof air duct door is opened, the air flow is discharged downwards from the air duct outlet of the frost-proof air guide duct.
Furthermore, an air duct outlet of the frost-proof air guide duct is positioned above the evaporator; the casing is provided with a water collecting tank; the water collecting tank is positioned below the evaporator.
Further, the fan, the condenser and the evaporator are arranged in parallel; the sump aligns the bottoms of the evaporator and condenser.
Further, the speed of the air flow driven by the fan to flow through the evaporator when the frost prevention air duct door is closed is less than the speed of the air blowing from the frost prevention air duct to the evaporator when the frost prevention air duct door is opened.
Further, the ratio of the wind speed of the fan driving airflow passing through the evaporator when the frost prevention air duct door is closed to the wind speed blowing from the frost prevention air duct to the evaporator when the frost prevention air duct door is opened is greater than or equal to 0.1 and less than or equal to 0.5.
Further, the air outlet direction of the air duct outlet of the frost-proof air guide duct and the fin direction of the evaporator are both vertical directions.
Furthermore, the condenser and the evaporator are fixed by the part of the machine shell forming the frost-proof air guide duct and the water collecting tank.
Furthermore, the top of the condenser and the top of the evaporator are fixed on the part of the machine shell forming the frost-proof air guide duct; the casing forms part of the water collecting tank and fixes the bottom of the condenser and the evaporator.
A dehumidifier comprising: the device comprises a fan, a condenser, an evaporator, a compressor and a shell; the fan, the condenser, the evaporator and the compressor are mounted to the casing; the casing is provided with an air duct cavity, a dehumidifying air inlet for supplying air flow into the casing and a dehumidifying air outlet for discharging the air flow from the casing; the fan is arranged in the air duct cavity; the air duct cavity is communicated to the dehumidification air outlet;
the fan, the condenser, the evaporator and the dehumidifying air inlet are sequentially and horizontally arranged; the casing is provided with a frost-proof air guide duct communicated to the duct cavity; the frost-proof air guide duct is positioned above the condenser and the evaporator; the air duct outlet of the frost-proof air guide duct is aligned with and faces the evaporator to guide the air flow to pass through the evaporator from top to bottom.
Furthermore, the dehumidifying air outlet is positioned above the air duct cavity; the position of the frost prevention wind guide duct communicated to the duct cavity is positioned between the dehumidification wind outlet and the fan.
Furthermore, the machine shell is provided with a water collecting tank; the water collection tank is located below the evaporator and the condenser.
Furthermore, the cross-sectional area of the anti-frost air guide duct is gradually reduced in the direction of the movement of the guide airflow.
Further, the dehumidifier further comprises: a frost prevention air duct door capable of sealing the frost prevention air guide air duct;
the frost prevention air duct door is provided with a closing position for blocking the frost prevention air guide duct from being communicated with the air duct cavity and an opening position for allowing the frost prevention air guide duct to be communicated with the air duct cavity; the frost prevention duct door moves between a closed position and an open position.
Furthermore, when the frost prevention air duct door is located at a closed position, the fan drives air flow to enter the shell from the dehumidification air inlet, flow through the evaporator and the condenser, enter the air duct cavity and be discharged from the dehumidification air outlet; when the frost prevention air duct door is located at the open position, the fan drives at least part of air flow to enter the frost prevention air guide air duct from the air duct cavity and blow towards the evaporator through the guidance of the frost prevention air guide air duct.
Further, when the frost prevention air duct door is located at the closed position, the air flow is discharged upwards from the dehumidification air outlet; when the frost prevention air duct door is located at the opening position, the air flow is discharged downwards from the air duct outlet of the frost prevention air guide air duct.
Further, the frost prevention air duct door is rotatably disposed in the housing.
Further, the rotation axis of the frost prevention air duct door is positioned at the top of the frost prevention air duct door and is horizontally arranged.
Further, the frost prevention air duct door is rotatably mounted to the top of the air duct wall of the frost prevention air guide duct; the frost-proof air duct door is of a plate-shaped structure.
The invention has the beneficial effects that the evaporator can be effectively prevented from frosting, so that the dehumidification efficiency is improved and high-efficiency dehumidification is realized.
The frost prevention air guide duct guides airflow generated by the fan to blow towards the evaporator to achieve frost prevention of the evaporator.
The reasonable arrangement of the internal structure of the dehumidifier is beneficial to shortening the path of the frost-proof air guide duct, and the path arrangement of the frost-proof air guide duct is convenient for guiding airflow to blow to the evaporator to realize a better frost-proof effect.
Drawings
FIG. 1 is a perspective view of a dehumidifier;
FIG. 2 is a left side view of the dehumidifier of FIG. 1;
FIG. 3 is a front view of the dehumidifier of FIG. 1;
FIG. 4 is a cross-sectional view of the dehumidifier of FIG. 3 taken along line A-A;
FIG. 5 is a perspective view of the internal structure of the dehumidifier of FIG. 1;
FIG. 6 is a perspective view from another perspective of the structure of FIG. 5;
FIG. 7 is a plan view of the structure of FIG. 5;
FIG. 8 is an enlarged view of a portion of the structure of FIG. 4, showing the frost protection duct door in a closed position, with the direction of the arrows indicating the direction of airflow;
fig. 9 is a schematic view of another state of the structure of fig. 8, showing the frost prevention duct door in an open state, and the direction of the arrow indicates the direction of the air flow.
The dehumidifier 100, the fan 10, the condenser 20, the evaporator 30, the compressor 40, the casing 50, the air duct cavity 51, the dehumidifying air outlet 52, the dehumidifying air inlet 53, the water collecting tank 54, the frost-proof air duct door 61, the frost-proof air guiding duct 62 and the water tank 70.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 9, a dehumidifier 100 includes: a fan 10, a condenser 20, an evaporator 30, a compressor 40, and a cabinet 50. The fan 10, the condenser 20, the evaporator 30, and the compressor 40 are mounted to the cabinet 50. The cabinet 50 is formed with an air duct chamber 51, a dehumidifying air outlet 52 and a dehumidifying air inlet 53. The fan 10 is disposed in the air duct chamber 51. The air flow enters the housing 50 through the dehumidification air inlet 53. The airflow is discharged from the dehumidifying air outlet 52 to the outside of the cabinet 50. The air duct chamber 51 communicates with the dehumidifying air outlet 52. Specifically, a protective grid member may be provided to cover the dehumidification air outlet 52 and the dehumidification air inlet 53, so as to protect the dehumidification air outlet 52 and the dehumidification air inlet 53 from foreign matters entering the inside of the cabinet 50.
In a preferred embodiment, the dehumidifier 100 has a dehumidification state in which a dehumidification operation is performed and a frost prevention state in which frost formation of the evaporator 30 is prevented. In the dehumidification state, the compressor 40 is operated and the fan 10 drives the airflow to flow through the evaporator 30 and the condenser 20, and then to enter the air duct chamber 51 and to be discharged from the dehumidification air outlet 52. Specifically, the dehumidifier 100 further includes: a sensor for detecting the temperature of the evaporator 30. When the sensor detects that the temperature of the evaporator 30 is lower than the preset temperature, the dehumidifier 100 is switched from the dehumidification state to the frost prevention state. Wherein the preset temperature is more than or equal to-1 ℃ and less than or equal to 0 ℃. As a specific embodiment, the preset temperature is 0 ℃. In the frost protection state, the compressor 40 stops working, and the fan 10 drives at least a part of the airflow to be discharged from the air duct chamber 51 and blown to the evaporator 30. Detect the temperature of evaporimeter 30 through the sensor, then automatic triggering gets into the frost prevention state when the temperature is lower, and compressor 40 stop work utilizes the air current that fan 10 produced to blow to evaporimeter 30 and clears away the moisture on evaporimeter 30 surface, prevents that the temperature of evaporimeter 30 from continuously reducing, causes evaporimeter 30 surface frosting to influence dehumidification effect. Compared with the conventional dehumidifier which starts the defrosting function after the evaporator is frosted, the dehumidifier 100 can effectively prevent the possibility of frosting and keep the machine continuously operating, so that the dehumidifier 100 can continuously and efficiently dehumidify, and the dehumidifier 100 can also be called as the dehumidifier 100 with high-efficiency dehumidification. The dehumidifier 100 performs defrosting or frost prevention by blowing an air flow generated by the fan 10 to the evaporator 30, and thus the dehumidifier 100 may also be referred to as a fan defrosting dehumidifier 100. The dehumidifier 100 may be referred to as a dehumidifier 100 having a reasonable internal structure layout because the air passage is shortened and the defrosting or frost prevention of the evaporator 30 by the fan 10 is improved by optimizing the internal structure.
In a preferred embodiment, the housing 50 is formed with a frost-proof air guide duct 62 that can communicate with the duct chamber 51. The dehumidifier 100 further includes: a frost prevention air duct door 61 and a power device for driving the movement of the frost prevention air duct door 61. The power unit is mounted to the housing 50. In one embodiment, the power device is an electric motor. As an alternative embodiment, other power devices such as an electromagnet that can generate driving force may be used. The motor may be configured to directly drive the anti-frost duct door 61 to move or may be configured to indirectly drive the anti-frost duct door 61 to move through a transmission mechanism.
The frost prevention air duct door 61 has a dehumidifying operation position and a frost prevention operation position. The power unit drives the frost prevention duct door 61 to move between the dehumidifying operation position and the frost prevention operation position. By controlling the power device, the automatic control of the frost prevention air duct door 61 can be realized, and the position adjustment can be realized.
In the dehumidification working position, the frost-proof air duct door 61 closes the frost-proof air duct 62 to prevent the air flow in the air duct chamber 51 from entering the frost-proof air duct 62. In the frost prevention operation position, the frost prevention air guide duct 62 communicates with the duct chamber 51 to guide the air flow toward the evaporator 30. When the dehumidifier 100 is in a dehumidification state, the frost-proof air duct door 61 is located at a dehumidification working position, and the frost-proof air duct 62 is closed, so that the airflow does not flow into the frost-proof air duct 62, and the airflow is directly discharged through the dehumidification air outlet 52 to perform normal dehumidification operation. When the dehumidifier 100 is in the frost prevention state and the frost prevention air duct door 61 is located at the frost prevention working position, the frost prevention air guide duct 62 is communicated with the air duct cavity 51, the compressor 40 stops working, and air flow is guided by the frost prevention air guide duct 62 to blow to the evaporator 30, so that the evaporator 30 is prevented from frosting. After the temperature of the evaporator 30 is raised, the dehumidifier 100 is readjusted to the dehumidification state to perform the dehumidification operation.
As a specific embodiment, when the sensor detects that the temperature of the evaporator 30 is lower than the preset temperature, the power device drives the frost prevention duct door 61 to move from the dehumidifying operation position to the frost prevention operation position. After the dehumidifier 100 operates in the frost prevention state for a period of time, when the sensor detects that the temperature of the evaporator 30 is higher than the preset temperature, the dehumidifier is automatically readjusted to the dehumidification state to perform the dehumidification operation. As a specific embodiment, when the sensor detects that the temperature of the evaporator 30 is higher than the preset temperature for the preset time interval, the compressor 40 is started and the power device drives the anti-frost air duct door 61 to move from the anti-frost working position to the dehumidification working position, and the dehumidifier 100 is switched from the anti-frost state to the dehumidification state. Specifically, when the sensor detects that the temperature of the evaporator 30 is higher than the preset temperature by at least 1 ℃ for the preset time interval, the compressor 40 is started and the power device drives the anti-frost air duct door 61 to move from the anti-frost working position to the dehumidification working position, and the dehumidifier 100 is switched from the anti-frost state to the dehumidification state. In a specific embodiment, the preset temperature is 0 ℃, when the sensor detects that the temperature of the evaporator 30 is not lower than 1 ℃ for 5 minutes, the compressor 40 is started and the power device drives the frost prevention air duct door 61 to move from the frost prevention working position to the dehumidification working position, and the dehumidifier 100 is switched from the frost prevention state to the dehumidification state.
In a specific embodiment, when the frost-proof air duct door 61 is located at the frost-proof working position, the frost-proof air duct door 61 extends into the air duct chamber 51 to guide the air flow into the frost-proof air duct 62. When the frost-proof air duct door 61 is located at the frost-proof working position, the frost-proof air duct door 61 at least partially blocks the air flow in the air duct chamber 51 from being discharged from the dehumidifying air outlet 52. The frost-proof air duct door 61 extends into the air duct cavity 51 and is obliquely arranged to guide the airflow to flow into the frost-proof air guide duct 62. The anti-frost air duct door 61 may extend into the air duct chamber 51 and may be configured to block the communication between the remaining dehumidifying air outlets 52 of the air duct chamber 51, so that the whole air flow enters the anti-frost air guiding duct 62.
In a preferred embodiment, the cross-sectional area of the anti-frost air guide duct 62 is gradually reduced in the direction of the movement of the guide air flow. The frost-proof air guide duct 62 performs pressurization work to increase the air speed at the outlet, so that the air can be blown to the evaporator 30 at a high air speed.
In a preferred embodiment, the air outlet direction of the air duct outlet of the frost-proof air guiding duct 62 and the fin direction of the evaporator 30 are both vertical directions.
As an optional implementation manner, an automatic control power device may not be provided, and an additional control switch may be provided to control the power device or a mechanical switch may be directly provided to directly and manually control the movement of the frost prevention air duct door. That is, the opening and closing of the frost prevention duct door 61 may be achieved by either an automatic control manner or a manual control manner. The frost prevention duct door 61 may close the frost prevention duct 62. When the frost-proof air duct door 61 is closed, the fan 10 drives the air flow to flow through the evaporator 30 and the condenser 20, then enters the air duct chamber 51 and is discharged from the dehumidifying air outlet 52. When the frost-proof air duct door 61 is opened, the fan 10 drives the air flow to enter the frost-proof air duct 62 from the air duct chamber 51 at least partially and to blow toward the evaporator 30 through the frost-proof air duct 62. The frost prevention air duct door 61 is closed, that is, the frost prevention air duct door 61 is in the dehumidification operation position. The frost prevention air duct door 61 is opened, that is, the frost prevention air duct door 61 is in the frost prevention working position.
When the frost-proof air duct door 61 is closed, the fan 10 drives the air flow to pass through the evaporator 30 and the condenser 20 in sequence in the horizontal direction and then enter the air duct chamber 51. When the frost prevention duct door 61 is opened, the air flow discharged from the frost prevention air duct 62 is blown toward the evaporator 30 in the vertical direction. When the frost prevention air duct door 61 is closed, the air flow is discharged upward from the dehumidifying air outlet 52. When the frost-proof air duct door 61 is opened, the air flow is discharged downward from the duct outlet of the frost-proof air duct 62.
In a specific embodiment, the air outlet direction of the air duct outlet of the frost-proof air guiding duct 62 and the fin direction of the evaporator 30 are both vertical directions.
The blower 10, the condenser 20 and the evaporator 30 are arranged in parallel. The dehumidifying air outlet 52 is located above the fan 10. The frost prevention air guide duct 62 is located above the condenser 20 and the evaporator 30. The condenser 20 is located between the fan 10 and the evaporator 30.
In a preferred embodiment, the duct outlet of the anti-frost air-guiding duct 62 is located above the evaporator 30. The cabinet 50 is provided with a sump 54. The sump 54 is located below the evaporator 30. The sump 54 aligns the bottoms of the evaporator 30 and the condenser 20. The outlet of the anti-frost air guide duct 62 is aligned with the evaporator 30, so that water attached to the evaporator 30 can quickly fall down and be collected by the water collection tank 54. The speed of the air flow driven by the fan 10 through the evaporator 30 when the frost prevention duct door 61 is closed is lower than the speed of the air blown from the frost prevention duct 62 to the evaporator 30 when the frost prevention duct door 61 is opened. Specifically, the ratio of the speed of the air flow that the fan 10 drives to flow through the evaporator 30 when the frost prevention duct door 61 is closed to the speed of the air that is blown from the frost prevention duct 62 to the evaporator 30 when the frost prevention duct door 61 is opened is 0.1 to 0.5 inclusive. The influence of the horizontal wind on the movement of water droplets on the evaporator 30 when wind enters is reduced. The positioning of the water collection sump 54 also helps to avoid the influence of horizontal wind to ensure that water droplets enter the water collection sump 54.
In a preferred embodiment, the condenser 20 and the evaporator 30 are fixed to a portion of the cabinet 50 forming the frost-proof air guide duct 62 and the water collection tank 54. The cabinet 50 forms a portion of the frost-proof air guide duct 62 to fix the condenser 20 and the evaporator 30 at the top. The cabinet 50 forms a part of the sump 54 to fix the condenser 20 and the bottom of the evaporator 30. The cabinet 50 includes an outer case, an inner frame, and an air duct case. The outer shell and the air duct shell are mounted to the inner frame body. The compressor 40 is fixed to the inner frame body. The air duct housing forms an air duct chamber 51 and an anti-frost air guide duct 62. The top of the inner frame body forms a water collection sump 54. The condenser 20 and the evaporator 30 are fixed at the top of the inner frame body. The duct housing provides a top mount for the condenser 20 and evaporator 30. The dehumidifier 100 further comprises a water tank 70. The water tank 70 is used for collecting condensed water, and can be taken out from the cabinet 50 to facilitate pouring of the condensed water. Specifically, the dehumidifier 100 further includes a water pan. The drip tray is detachably mounted to the cabinet 50. Water from the sump 54 passes through the drip tray into the water tank 70.
In a preferred embodiment, the blower 10, the condenser 20, the evaporator 30 and the dehumidifying air inlet 53 are horizontally arranged in this order. The housing 50 is formed with a frost-proof air guide duct 62 that communicates with the duct chamber 51. The frost prevention air guide duct 62 is located above the condenser 20 and the evaporator 30. The duct outlets of the frost protection and air guiding duct 62 are aligned and directed toward the evaporator 30 to guide the air flow through the evaporator 30 from top to bottom.
The dehumidifying air outlet 52 is located above the air duct chamber 51. The position of the anti-frost air guide duct 62 communicated to the duct chamber 51 is located between the dehumidification air outlet 52 and the fan 10. The cabinet 50 is provided with a sump 54. The sump 54 is located below the evaporator 30 and the condenser 20.
As an optional implementation manner, the frost prevention air duct door may not be provided, and during the dehumidification process, the airflow is blown to the evaporator through the frost prevention air duct portion to reduce the possibility of frost formation. As a specific embodiment, the dehumidifier 100 further includes: the frost prevention air duct door 61. The frost prevention air guide duct 62 can be closed by the frost prevention air duct door 61. The frost prevention duct door 61 has a closed position blocking the communication of the frost prevention duct 62 to the duct chamber 51 and an open position allowing the communication of the frost prevention duct 62 to the duct chamber 51. The frost prevention duct door 61 moves between a closed position and an open position. When the frost-proof air duct door 61 is located at the closed position, the fan 10 drives the air flow to enter the casing 50 from the dehumidifying air inlet 53, flow through the evaporator 30 and the condenser 20, enter the air duct chamber 51, and exit from the dehumidifying air outlet 52. When the frost-proof air duct door 61 is located at the open position, the fan 10 drives the air flow to enter the frost-proof air duct 62 at least partially from the air duct chamber 51 and to blow toward the evaporator 30 through the frost-proof air duct 62. When the frost prevention duct door 61 is in the closed position, the air flow is discharged upward from the dehumidification air outlet 52. When the frost-proof air duct door 61 is in the open position, the air flow is discharged downward from the duct outlet of the frost-proof air duct 62.
In a preferred embodiment, the frost prevention duct door 61 is rotatably provided in the housing 50. The rotation axis of the frost prevention duct door 61 is located at the top of the frost prevention duct door 61 and the rotation axis of the frost prevention duct door 61 is horizontally disposed. The frost prevention duct door 61 is rotatably mounted to the top of the duct wall of the frost prevention duct 62. The frost prevention duct door 61 has a plate-like structure. When the frost-proof air duct door 61 is opened, the lower end of the frost-proof air duct door 61 rotates to enter the air duct cavity 51, so that the air flow can be guided to enter the frost-proof air guide duct 62.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (10)
1. An efficient dehumidification dehumidifier comprising: the device comprises a fan, a condenser, an evaporator, a compressor and a shell; the fan, the condenser, the evaporator and the compressor are mounted to the cabinet; the shell is provided with an air duct cavity and a dehumidifying air outlet; the fan is arranged in the air duct cavity; the dehumidifier with high-efficiency dehumidification has a dehumidification state for dehumidification operation; in the dehumidification state, the compressor works, and the fan drives airflow to flow through the evaporator and the condenser, then the airflow enters the air duct cavity and is discharged from the dehumidification air outlet;
it is characterized in that the dehumidifier for high-efficiency dehumidification further comprises: a sensor for detecting a temperature of the evaporator; the dehumidifier with high efficiency dehumidification also has a frost prevention state for preventing the evaporator from frosting; when the temperature of the evaporator is detected to be lower than a preset temperature by the sensor, the dehumidifier with high-efficiency dehumidification is switched to the frost prevention state from the dehumidification state; wherein the preset temperature is greater than or equal to-1 ℃ and less than or equal to 0 ℃; and when the frost prevention state is achieved, the compressor stops working, and the fan drives at least part of airflow to be discharged from the air duct cavity and then blow towards the evaporator.
2. The dehumidifier of claim 1,
the shell is provided with a frost-proof air guide duct communicated to the duct cavity; the dehumidifier of high-efficient dehumidification still includes: the frost prevention air duct comprises a frost prevention air duct door and a power device for driving the frost prevention air duct door to move; the power device is mounted to the enclosure; the frost prevention air duct door is provided with a dehumidification working position and a frost prevention working position; the power device drives the frost prevention air duct door to move between the dehumidification working position and the frost prevention working position;
when the dehumidification working position is adopted, the frost prevention air duct door closes the frost prevention air duct to prevent the airflow in the air duct cavity from entering the frost prevention air duct; when the defrosting device is in the defrosting working position, the defrosting air guide duct is communicated with the duct cavity so as to guide airflow to blow to the evaporator.
3. The dehumidifier of claim 2,
when the sensor detects that the temperature of the evaporator is lower than a preset temperature, the power device drives the frost prevention air duct door to move from the dehumidification working position to the frost prevention working position.
4. The dehumidifier of claim 2,
when the sensor detects that the temperature of the evaporator is higher than the preset temperature at the continuous preset time interval, the compressor is started, the power device drives the frost prevention air duct door to move from the frost prevention working position to the dehumidification working position, and the dehumidifier for efficient dehumidification is switched from the frost prevention state to the dehumidification state.
5. The dehumidifier of claim 4,
the preset temperature is 0 ℃; when the sensor detects that the temperature of the evaporator is not lower than 1 ℃ for 5 minutes, the compressor is started, the power device drives the frost prevention air duct door to move from the frost prevention working position to the dehumidification working position, and the dehumidifier for efficient dehumidification is switched from the frost prevention state to the dehumidification state.
6. The dehumidifier of claim 2,
when the frost prevention air duct door is located at the frost prevention working position, the frost prevention air duct door extends into the air duct cavity so as to guide air flow to enter the frost prevention air guide air duct.
7. The dehumidifier of claim 2,
when the frost prevention air duct door is located at the frost prevention working position, the frost prevention air duct door at least partially blocks the air flow in the air duct cavity to be discharged from the dehumidification air outlet.
8. The dehumidifier of claim 2,
the section area of the frost-proof air guide duct is gradually reduced in the direction of guiding air flow movement.
9. The dehumidifier of claim 2,
the air duct outlet of the frost-proof air guide duct is positioned above the evaporator; the shell is provided with a water collecting tank; the water collection tank is located below the evaporator.
10. The dehumidifier of claim 2,
the air outlet direction of the air duct outlet of the frost-proof air guide duct and the fin direction of the evaporator are vertical directions.
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|---|---|---|---|
| CN202111079147.0A CN113719924A (en) | 2021-09-15 | 2021-09-15 | Dehumidifier of high-efficient dehumidification |
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| CN202111079147.0A CN113719924A (en) | 2021-09-15 | 2021-09-15 | Dehumidifier of high-efficient dehumidification |
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| CN113719924A true CN113719924A (en) | 2021-11-30 |
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| CN202111079147.0A Pending CN113719924A (en) | 2021-09-15 | 2021-09-15 | Dehumidifier of high-efficient dehumidification |
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| CN114061027A (en) * | 2021-12-03 | 2022-02-18 | 海信（广东）空调有限公司 | Dehumidifier and control method thereof |
| CN117433126A (en) * | 2023-12-20 | 2024-01-23 | 珠海格力电器股份有限公司 | Dehumidifier control method and device |
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Application publication date: 20211130 |