CN201121005Y - Microcomputer control moisture-proof dehumidifier - Google Patents

Abstract

The utility model discloses a moisture-proof dehumidifier controlled by a microcomputer, which comprises a shell. A moisture absorption valve and a moisture discharge valve are respectively arranged on opposite sides of the shell. The valve leaf controls the opening of one of the moisture absorption valve and the moisture discharge valve. Set up a drying box and a fan, the wind direction of the fan faces the drying box, a heater and a desiccant are installed in the drying box, the humidity sensor is in contact with the box, the signal of the humidity sensor is transmitted to the controller, and the controller controls the valve leaf, heater and The action of the fan; when the humidity in the box is lower than the set value, the moisture absorption valve opens, and the controller sets a number of first time periods, and the fan starts to absorb moisture in the first time period; when the humidity in the box is higher than or equal to the set value , the controller controls the dehumidification valve to open within the set second time period and the heater to work within the set second time period to perform dehumidification. This example has the advantages of accurate control, fast speed and high efficiency, good moisture absorption and dehumidification effects, simple structure and reliable operation.

Description

Microcomputer control moisture-proof dehumidifier

technical field

The utility model relates to a moisture-proof box (cabinet) dehumidifier.

Background technique

Products such as photographic equipment will become moldy once they get wet, which will affect the quality of photography and corrode the metal parts of the equipment. Therefore, users will put advanced photographic equipment in a moisture-proof box and assemble it on one of the walls of the moisture-proof box A moisture-proof dehumidifier, the moisture-proof dehumidifier has the function of discharging the moisture in the box to ensure the dryness of the moisture-proof box, but now the moisture-proof dehumidifier relies on natural wind when absorbing moisture, and relies on memory alloy to open the dehumidification valve when dehumidifying However, the dehumidifier with this structure has poor moisture absorption effect, which is mainly manifested in slow moisture absorption speed, and secondly, the valve is not opened in time when dehumidification, which affects the dehumidification effect.

Contents of the invention

In order to overcome the above defects, the utility model provides a microcomputer-controlled moisture-proof dehumidifier, the microcomputer-controlled moisture-proof dehumidifier absorbs moisture quickly, has good dehumidification effect, simple structure and reliable operation.

The technical solution adopted by the utility model in order to solve the technical problem is: a microcomputer-controlled moisture-proof dehumidifier, including a shell, and the opposite sides of the shell are respectively equipped with a moisture absorption valve (opened in the box when used and installed), a moisture discharge valve (It is opened outside the box when used and installed), the valve leaf controls the opening of one of the moisture absorption valve and the moisture discharge valve (that is, when the moisture absorption valve is opened, the moisture discharge valve is closed, and vice versa), a drying box and a fan are fixed in the shell, and the fan The wind direction of the drying box is facing the drying box, and there are heaters and desiccant in the drying box. The humidity sensor is in contact with the box, and the signal of the humidity sensor is transmitted to the controller, and the controller controls the action of the valve leaf, the heater and the fan; when inside the box When the humidity is lower than the set value, the moisture absorption valve opens, the controller sets a number of first time periods, and the fan starts to absorb moisture in the first time period; when the humidity in the box is higher than or equal to the set value, the controller controls the dehumidification The valve is opened within the set second time period and the heater works within the set second time period to perform dehumidification.

The beneficial effect of the utility model is: because this example adopts the microcomputer controller to control the valve leaf, the heater and the fan, the control is accurate, the speed is fast and the efficiency is high, the effect of moisture absorption and dehumidification is good, the structure is simple, and the work is reliable.

Description of drawings

Fig. 1 is the schematic diagram of one side of the utility model provided with a moisture absorption valve;

Fig. 2 is a schematic diagram of a side of the utility model provided with a dehumidification valve;

Fig. 3 is the schematic diagram of the state when the valve leaf controls the moisture absorption valve of the utility model to open (it is the moisture absorption state);

Fig. 4 is a schematic diagram of the state when the valve leaf controls the dehumidification valve of the utility model when it is opened (in the dehumidification state).

Detailed ways

Embodiment: a microcomputer-controlled moisture-proof dehumidifier, including a housing, the opposite sides of the housing are respectively provided with a moisture absorption valve 1 (opened in the box when used and installed), and a moisture discharge valve 2 (opened outside the box when used and installed), The valve leaf 4 controls the opening of one of the moisture absorption valve and the moisture discharge valve (that is, the moisture discharge valve is closed when the moisture absorption valve is opened, and the moisture discharge valve is opened when the moisture absorption valve is closed), and the drying box 3 and the fan are fixed in the housing. The wind direction is facing the drying box, and there are heaters and desiccant in the drying box. The humidity sensor is in contact with the box, and the signal of the humidity sensor is transmitted to the controller, and the controller controls the action of the valve leaf, heater and fan; when the humidity in the box When the moisture absorption valve is lower than the set value, the controller sets a number of first time periods, and the fan starts to absorb moisture in the first time period; when the humidity in the box is higher than or equal to the set value, the controller controls the moisture discharge valve Turn on and work the heater within the set second time period to dehumidify.

The action process of the utility model is: the humidity sensor is placed in the box, when the humidity in the box exceeds the set value, the controller sends a working signal, the heater heats and the dehumidification valve opens, and the heater sends chemical molecular sieve (ie desiccant) Carry out heating and dehumidification, and dehumidify within the second set time period. After completion, the controller sends a signal to stop heating, and at the same time, the dehumidification valve is closed (at this time, the moisture absorption valve is opened). After the dehumidification is completed, the controller sends a signal to control the action of the fan to absorb moisture. During the process of moisture absorption, the controller sets several first time periods at intervals. In each first time period, the fan operates to absorb moisture. The rest of the time the fan is off.

In actual use, the shell of the drying box is a mesh aluminum box, which is good for moisture absorption and dehumidification. There is an airtight aluminum box on the front of the fan. The wind path makes the air path more concentrated, the fan wind sucks the moisture into the drying box with mesh, and the dry air is filtered by the chemical molecular sieve and then blown into the box to form dry air, which increases the air circulation in the box and the moisture absorption in the lifting box Speed, in this case with two drying boxes and fans, can improve work efficiency.

In this example, the rotation of the valve leaf is realized by a motor, and a micro switch can be additionally provided. When the valve leaf rotates to open the moisture absorption valve, the micro switch is turned on, and the micro switch controls the power supply of the fan.

The shell can be made of flame-resistant plastic material, which can withstand high temperature and is strong and not easy to break; the desiccant uses high-efficiency chemical molecular sieve to absorb moisture.

Claims (1)

1. A microcomputer-controlled moisture-proof dehumidifier, including a shell, the opposite sides of the shell are respectively provided with a moisture absorption valve and a moisture discharge valve, and the valve leaf controls the opening of one of the moisture absorption valve and the moisture discharge valve. It is characterized in that: The drying box and fan are fixed, the wind direction of the fan faces the drying box, a heater and a desiccant are installed in the drying box, the humidity sensor is in contact with the box, the signal of the humidity sensor is transmitted to the controller, and the controller controls the valve leaf and the heater and the action of the fan; when the humidity in the box is lower than the set value, the moisture absorption valve opens, the controller sets a number of first time periods, and the fan starts to absorb moisture in the first time period; when the humidity in the box is higher than or equal to the set value , the controller controls the dehumidification valve to open within the set second time period and the heater to work within the set second time period to perform dehumidification.

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