TWI526662B - Portable moisture - proof device and its dehumidification control method - Google Patents

Description

Portable moisture-proof device and dehumidification control method thereof

The invention relates to a moisture-proof technology, in particular to a portable moisture-proof device and a dehumidification control method thereof.

Dehumidification is a common problem in business and people's lives. The subtropical climate is hot and humid. It is easy to feel uncomfortable after a long time in this environment. For life, for various products, such as USB plugs, camera lenses, beauty cosmetics, leather. Jewelry, paper stamps and drug quality are also very harmful. The more sophisticated and refined products, the higher the humidity requirements. In the process of production and transportation, as people improve the quality of food, medicine, and consumer electronics, humidity control in the environment naturally becomes an important issue and indicator. In high-humidity environments, moisture and condensation can cause the sensitivity and even malfunction of precision electronic devices such as measuring instruments and sensors. Changes in ambient humidity can affect the appearance, surface and interior of paper, wood products, pharmaceuticals, textiles, leather, and camera lens related materials. If the moisture invading the inside of the electronic product is not excluded, the life of the power component of the control circuit will decrease, and more seriously, the product will be damaged. In a high-humidity environment, in addition to the significant reduction in the shelf life of the items, the composition of foods and medicines will also change. If the ingredients are not stabilized, they may endanger the human body and even life. All kinds of negative conditions must be Not what we are happy with, so the control of humidity is of considerable importance in people's daily lives.

An object of the present invention is to provide a portable moisture-proof device and a dehumidification control method thereof for rapid automatic dehumidification and precise control of humidity in a cabinet.

In order to achieve the above object, the present invention provides a portable moisture-proof device, which is basically a box body having a door on one side of the box, and the user opens the door to put the item into the box, The door is closed for dehumidification, and the portable moisture-proof device comprises: a partition disposed in an inner space of the box, the partition dividing the inner space into a first chamber and a second chamber, The first chamber serves as a dehumidification space for the user to place the item to be dehumidified, and the second chamber is used to set various devices, the volume of the first chamber is larger than the volume of the second chamber; The air cylinder is disposed in the second chamber; a heat dissipation module includes a first fan, a second fan, and a sandwich between the first fan and the second fan. a thermoelectric wafer having a heat absorbing end and a row of hot ends on opposite sides of the heat absorbing end, the first fan being in contact with the heat absorbing end of the thermoelectric wafer, and the second fan and the heat discharging end of the thermoelectric wafer Contact, the first fan setting The spacer is coupled between the first chamber and the second chamber for guiding thermal energy of the dehumidification space of the first chamber to the heat absorption end of the thermoelectric wafer, and the second fan is exposed to the Outside the box, the thermal energy of the heat-dissipating end of the thermoelectric chip is discharged to the external environment; an external power plug, a hand-cranked generator and a sun The power board, the external power plug and the handle of the hand-cranked generator are exposed to the outside of the box, the wiring of the external power plug is received in the second chamber, and the solar panel is disposed on the upper side of the box The external power plug is used for inputting commercial power, the hand-cranked generator is used to convert hand kinetic energy into electric power, the solar panel is used to convert solar energy into electric power, and a battery is used for storing from the external connection. The power plug, the hand-cranked generator, and the power of the solar panel provide power to the portable moisture-proof device.

In one embodiment, the portable moisture-proof device further includes: a USB port, which is exposed on an outer side of the box, and is electrically connected to the battery, and the USB port is used for connecting with an electronic product, the battery The stored power is supplied to the electronic product connected to the USB port via the USB port.

In one embodiment, the thermoelectric wafer is formed by arranging a plurality of P-type semiconductors and an N-type semiconductor. The upper surface of the P-type semiconductor and the N-type semiconductor are electrically connected by a conductive plate, and the lower surface of the P-type semiconductor is connected. The DC positive electrode is connected to the lower surface of the N-type semiconductor by a DC negative electrode. The conductive plate side is covered by a heat absorption end substrate, and the P-type semiconductor and the N-type semiconductor are covered with a row of hot end substrates.

In one embodiment, the portable moisture-proof device further includes: a first strut, one end of which rotatably abuts against an upper side surface of the casing, and the other end abuts against a back side of the solar panel; a second pole having one end rotatably abutting against an upper side surface of the casing and the other end abutting against a side of the second strut On the side, the first strut and the second strut are configured to adjust the angle of the solar panel at a horizontal plane.

In one embodiment, the portable moisture-proof device further includes: an inductor disposed on a sidewall of the first housing chamber for sensing a temperature of the dehumidification space of the first chamber and/or Humidity, the value sensed by the sensor is transmitted to the system for interpretation; and a power-on indicator and a system abnormal indicator are disposed on the outer side of the cabinet, and the system abnormal indicator is used to alert the user An abnormal condition has occurred in the system.

Another aspect of the present invention provides a dehumidification control method for a portable moisture-proof device, comprising the steps of: sensing a humidity value in a dehumidification space of the portable moisture-proof device by using a sensor; and determining a dehumidification space sensed by the sensor. Whether the humidity value is higher than a predetermined humidity value, the predetermined humidity value is a preset target humidity value, and the predetermined humidity value is considered to provide moisture protection for the article; when it is determined that the sensor senses the dehumidification The humidity value of the space is higher than the predetermined humidity value, and a command to start dehumidification is issued to perform dehumidification; and it is determined whether the dehumidification device in the portable moisture-proof device starts to operate, and if the dehumidification device in the portable moisture-proof device is determined If the operation is not started, a warning of the abnormality of the system is issued; it is determined whether the humidity value of the dehumidification space sensed by the sensor is lower than the predetermined humidity value, and if not, the dehumidification operation is continued, and if so, a stop is issued. a dehumidification command to stop the dehumidification; and determine whether the dehumidification device in the portable moisture-proof device is When the operation is stopped, if it is determined that the dehumidification device in the portable moisture-proof device has not stopped running, a warning of abnormality of the system is issued.

The portable moisture-proof device and the dehumidification control method thereof have the functions of rapid automatic dehumidification and precise control of the humidity inside the box, and can also alert the user when the system is abnormal, so as to avoid the loss of moisture-proof function or even the effect of anti-moisture. . The effect of dehumidification is achieved by combining the box air with the thermoelectric wafer. Firstly, the air filtration is firstly removed in the tank, and then the cold end heat absorption part of the thermoelectric wafer is changed. The temperature and humidity are varied to explore the optimization and suitable dehumidification rate. The power is matched and a method of increasing the dehumidification rate and efficiency is tested. The invention adopts the combination of commercial power and regenerative power generation in the power system, and supplies the load to the utility power on weekdays. When the vehicle is out, the hand-cranked power generation and the solar power generation supply load can be used, and the self-supply can be self-supply, and the unused power can be stored for later supply. Load demand, after the device is connected to the USB transmission line, the stored power can also be used for other electronic products. The choice of lightweight design on the outside can achieve the purpose of convenient carrying and carrying, in the process of moving or transporting, to achieve the best condition of extending the shelf life of the article and maintaining the quality of the product.

10‧‧‧Portable moisture-proof device

11‧‧‧ cabinet

12‧‧‧

13‧‧‧ Door handle

14‧‧‧door lock

15‧‧‧temperature and humidity meter

16‧‧‧Baffle

17‧‧‧First room

18‧‧‧Second room

19‧‧‧Pumping cylinder

20‧‧‧First fan

21‧‧‧second fan

22‧‧‧Thermal chip

23‧‧‧Battery

24‧‧‧Voltage Converter

25‧‧‧External power plug

26‧‧‧Hand-cranked generator

27‧‧‧ solar panels

28‧‧‧First pole

29‧‧‧Second pole

30‧‧‧USB connection埠

31‧‧‧ switch

32‧‧‧Power on indicator

33‧‧‧System abnormality indicator

34‧‧‧ sensor

35‧‧‧P-type semiconductor

36‧‧‧N type semiconductor

37‧‧‧ Conductive plate

38‧‧‧Endothermic substrate

39‧‧‧Exhaust end substrate

40‧‧‧Anti-countercurrent diode

41‧‧‧Power Converter

S10~S26‧‧‧Steps

Fig. 1A is a front elevational view showing the portable moisture-proof device of the present invention.

Fig. 1B is a perspective view showing the portable moisture-proof device of the present invention.

Fig. 1C is another perspective view showing the portable moisture-proof device of the present invention.

Figure 2 shows a schematic diagram of the principle of a thermoelectric wafer.

Figure 3 shows a schematic diagram of one embodiment of a thermoelectric wafer 22 of the present invention.

Fig. 4 is a view showing an embodiment of an electric power system of the portable moisture-proof device of the present invention.

Fig. 5 is a view showing a dehumidification control method of the portable moisture-proof device of the present invention.

In the following detailed description of the embodiments, reference should be made to the claims It is to be understood that other modifications, changes and variations may be made in the structure without departing from the spirit of the invention.

1A to 1C, FIG. 1A shows a front view of the portable moisture-proof device of the present invention, FIG. 1B shows a perspective view of the portable moisture-proof device of the present invention, and FIG. 1C shows the portable type of the present invention. Another perspective view of the moisture barrier.

The portable moisture-proof device 10 of the present invention is basically a box 11 which is in the shape of a rectangular parallelepiped and preferably has a size of 40 cm × 40 cm × 30 cm (length, width and height). The door 11 of the portable moisture-proof device 10 has a door 12 on one side thereof. The door 12 is preferably made of a transparent material such as glass or transparent plastic. The user opens the door 12 to place the article in the moisture-proof box, and then the door is opened. 12 is turned off for dehumidification.

The door 12 is provided with a door handle 13 and a door lock 14, which facilitates the user to open and close the door 12, and the door lock 14 can improve the safety of the items in the moisture-proof box.

The door 12 is provided with a temperature and humidity meter 15 which can display the temperature and humidity in the moisture-proof box for the user to understand the temperature and humidity in the box 11. Of course, the temperature and humidity meter 15 may not be provided on the door 12, but on the other side of the box 11, but the temperature and humidity data displayed by the temperature and humidity meter 15 is more easily seen by the user on the door 12.

The inner space of the casing 11 is partitioned into two accommodating spaces by a partition 16 in the casing 11, that is, the first chamber 17 and the second chamber 18 (see FIG. 1B), and the first chamber 17 is dehumidified. The space is for the user to place the item to be dehumidified, and the second chamber 18 is used to set various devices, such as a power supply unit and a dehumidifying unit, and the volume of the first chamber 17 is larger than the volume of the second chamber 18.

An air pumping module and a heat dissipating module are disposed in the second chamber 18, and the air pumping module includes a pumping cylinder 19 connected to the dehumidifying space of the first chamber 17 through a pipeline for use in the dehumidifying space. The water vapor is concentrated therein, and the water vapor is preferably condensed into water by a condensation technique.

The heat dissipation module includes a first fan 20, a second fan 21, and a thermoelectric wafer 22 sandwiched between the first fan 20 and the second fan 21. The thermoelectric wafer 22 has a heat absorbing end and a row of hot ends located on opposite sides of the heat absorbing end, the first fan 20 is in contact with the heat absorbing end of the thermoelectric wafer 22, and the second fan 21 is in contact with the heat absorbing end of the thermoelectric wafer 22.

The first fan 20 is disposed on the partition 16 and is coupled between the first chamber 17 and the second chamber 18 for guiding the thermal energy of the dehumidification space of the first chamber 17 to the heat absorption end of the thermoelectric wafer 22, and then The thermoelectric wafer 22 conducts thermal energy from the endothermic end to the heat rejection end (described in detail later). The second fan 21 is exposed outside the casing 11 for discharging the thermal energy of the hot end of the thermoelectric wafer 22 to the external environment.

The second chamber 18 is provided with a battery 23, a voltage converter 24, an external power plug 25 and a hand-operated generator 26, and the handle of the hand-operated generator 26 and the external power plug 25 are exposed to the cabinet 11 The outside is convenient for the user to use. The wiring of the external power plug 25 is housed in the second chamber 18. A solar panel 27 is disposed on the upper side of the casing 11. That is, the portable moisture-proof device 10 of the present invention has three types of power supply modes, that is, the commercial power input through the external power supply plug 25, the electric power converted from the kinetic energy by the hand-operated generator 26, and the electric power converted into solar energy by the solar panel 27. The input of the voltage converter 24 can be connected to any one or combination of the mains, the hand-operated generator 26 and the solar panel 27, and the output is connected to the battery 23, whereby the utility, the hand-cranked generator 26 and the solar energy can be used. The voltage of either or both of the plates 27 is converted to an input voltage that matches the battery 23. The battery 23 can store power from any one or a combination of the mains, the hand-operated generator 26, and the solar panel 27, and power the respective power units of the portable moisture-proof device 10, such as a pumping module, a fan 20, 21 And thermoelectric wafer 22 and the like. The portable moisture-proof device 10 combines the power supply of the city and the regenerative power generation. The utility model supplies the load to the utility power on weekdays, and can supply the load by hand-type power generation and solar power generation when going out.

As shown in FIG. 1C, the solar panel 27 is an adjustable solar panel that adjusts the angle between the solar panel 27 and the ground due to the latitude of the ground, and can also be adjusted according to the height of the sun during the day. Specifically, the adjusting structure includes a first strut 28 and a second strut 29, one end of the first strut 28 is rotatably abutted against the upper side surface of the casing 11, and the other end abuts against the solar panel 27. On the back side, one end of the second strut 29 is rotatably abutted against the upper side surface of the casing 11, and the other end abuts against the side of the second strut 29, so that when the second strut 29 abuts When the position of the side of one of the rods 28 is different, the inclination angle of the first struts 28 is different, thereby achieving the effect of adjusting the angle of the solar panel 27.

The portable moisture-proof device 10 also has a USB interface, which is powered by the battery 23, and a USB port 30 is exposed on the outside of the box 11, for connecting other electronic products, and the power stored in the battery 23 is transmitted through the USB port. It can be used by electronic products connected to this USB port. In addition, a switch 31 is provided on the outer side of the casing 11 for turning on or off the power of the battery 23 to turn the dehumidification action on or off. A power-on indicator light 32 and a system abnormality indicator 33 are disposed on the outer side of the cabinet 11. In addition, an inner side wall of the casing 11 in the first chamber 17 is provided with an inductor 34 for sensing the temperature and/or humidity of the dehumidification space of the first chamber 17, and the value thereof is subsequently used for judging by the dehumidification system.

Referring to Figures 2 and 3 together, Figure 2 shows a schematic diagram of the principle of a thermoelectric wafer, and Figure 3 shows a schematic view of one embodiment of a thermoelectric wafer 22 of the present invention. As shown in Figure 2, the thermoelectric chip (Thermoelectric Cooler, TEC) is composed of P-type and N-type semiconductors, and uses the Peltier Effect in the principle of thermoelectric effect to transfer the heat from the endothermic end to the heat-dissipating end. The N-type semiconductor contains more negative charges, while the P-type semiconductor contains more positive charges (holes). In the thermoelectric cooling operation mode, the negative charge in the N-type semiconductor and the positive charge in the P-type semiconductor are separated from the cold end (endothermic end) to the hot end (discharge end) by the DC power supply, and the cold end heat energy is taken away. And to achieve the function of cooling.

As shown in FIG. 3, the thermoelectric wafer 22 of the present invention can be applied to the embodiment shown in FIG. 3. The thermoelectric wafer 22 is formed by a plurality of P-type semiconductors 35 and N-type semiconductors 36, and P-type semiconductors 35 and N-types. The upper surface of the semiconductor 36 is electrically connected to the conductive plate 37. The lower surface of the P-type semiconductor 35 is connected to the DC positive electrode, the lower surface of the N-type semiconductor 36 is connected to the DC negative electrode, and the upper side of the conductive plate 37 is covered by the heat absorption end substrate 38. The lower side of the semiconductor 35 and the N-type semiconductor 36 is covered with a heat-dissipating end substrate 39.

Referring to Figure 4, there is shown a schematic diagram of one embodiment of a power system for a portable moisture barrier of the present invention. As shown in FIG. 4, the controllable DC power supply 250 for converting the mains voltage, the hand-operated generator 26 for converting the kinetic energy of the user's hand, and the solar panel 27 for converting the solar energy can dehumidify the first chamber 17. The space-acting heat dissipation modules (fans 20, 21 and thermoelectric wafers 22) are powered, and electrical energy can also be stored to the battery 23, powered by or simultaneously by the battery 23. In addition, a backflow prevention diode 40 and a power converter 41 are included in the power supply path between the solar panel 27 and the battery 23 or the electric device.

The invention utilizes CFD (Computational Fluid Dynamics) software analysis to solve various complex flow and physical phenomena, and adopts different discrete formats and numerical methods to solve complex flow calculation problems in various fields. The invention utilizes the CFD analysis software, establishes model parameters on the computer, defines the model area, designs and divides the grid, and simulates the actual situation of the fluid flow, heat transfer properties, chemical reactions and other using the grid of the model. Complex physics, software solvers are built in various fields, such as structured grid solution, unstructured grid solution, fluid-structure coupling, viscous flow, agitation mixing, thermal control analysis, and selection for simulation requirements. Different module calculations visualize the simulated data results to find a more close-to-ideal analysis. In the system simulation, the box size is set to a fixed number, the temperature inside the box is set to a variable, the gas distribution in the box is simulated and the design is improved to achieve effective dehumidification efficiency.

Please refer to Fig. 5, which shows a dehumidification control method of the portable moisture-proof device of the present invention. This dehumidification control method can be implemented by a single chip, which relies on internal clock signals to generate various action cycles and synchronization signals. The dehumidification control method of the present invention includes the following respective steps. For the following description, please refer to the portable moisture-proof device shown in Figs. 1A to 1C and the flowchart shown in Fig. 5.

In step S10, the humidity in the dehumidification space is sensed. In this step, the humidity value of the dehumidification space of the first chamber 17 may be sensed by the inductor 34 disposed in the first chamber 17. In step S12, determining the dehumidification space Whether the humidity value is higher than a predetermined humidity value, the predetermined humidity value is a target humidity value preset by the system, and the moisture protection of the article can be provided at the humidity value. When the humidity value sensed by the sensor 34 is higher than the predetermined humidity value, the system will start to perform the dehumidification process, and when it is lower than the predetermined humidity value, no action will be taken. In step S14, when the determination in step S12 is YES, the control wafer issues a command to start dehumidification. In step S16, the control wafer determines whether the system starts to operate, for example, whether the fans 20, 21 and the thermoelectric wafer 22 in the air extraction module and the heat dissipation module start to operate. If so, the dehumidification operation is performed (step S18). If not, the wafer is warned to issue a system abnormality (step S26), for example, the system abnormality indicator lamp 33 is illuminated.

In step S20, it is determined whether the humidity value of the dehumidification space is lower than the predetermined humidity value. In this step, the sensor 34 in the first chamber 17 continuously senses the humidity value in the dehumidification space, when the sensor 34 senses When the obtained humidity value is lower than the predetermined humidity value, the system stops the dehumidification process, and when it is higher than the predetermined humidity value, the dehumidification operation of step S18 is continued. In step S22, when the determination in step S20 is YES, the control wafer issues a command to stop dehumidification. In step S24, the control wafer determines whether the system is stopped, for example, whether the fans 20, 21 and the thermoelectric wafer 22 in the air suction module and the heat dissipation module are stopped. If not, the control chip issues a warning of system abnormality (step S26), for example, the system abnormality indicator 33 is illuminated, and if not, the process ends.

It should be noted that the predetermined humidity value preset by the system in the above steps may be not only one value but a humidity range. So, the steps S12 determines whether it is higher than the upper limit value of the humidity range, and step S20 determines whether it is lower than the lower limit value of the humidity range.

In addition, it should be noted that whether the system starts to operate in step 16 or whether the system stops operating in step S24 may be used to determine whether the system has an abnormality, that is, whether the operation should be performed according to the command without performing an action.

The portable moisture-proof device and the dehumidification control method thereof have the functions of rapid automatic dehumidification and precise control of the humidity inside the box, and can also alert the user when the system is abnormal, so as to avoid the loss of moisture-proof function or even the effect of anti-moisture. . The effect of dehumidification is achieved by combining the box air with the thermoelectric wafer. Firstly, the air filtration is firstly removed in the tank, and then the cold end heat absorption part of the thermoelectric wafer is changed. The temperature and humidity are varied to explore the optimization and suitable dehumidification rate. The power is matched and a method of increasing the dehumidification rate and efficiency is tested. The invention adopts the combination of commercial power and regenerative power generation in the power system, and supplies the load to the utility power on weekdays. When the vehicle is out, the hand-cranked power generation and the solar power generation supply load can be used, and the self-supply can be self-supply, and the unused power can be stored for later supply. Load demand, after the device is connected to the USB transmission line, the stored power can also be used for other electronic products. The choice of lightweight design on the outside can achieve the purpose of convenient carrying and carrying, in the process of moving or transporting, to achieve the best condition of extending the shelf life of the article and maintaining the quality of the product.

The present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. In the spirit and scope of the invention, the scope of the invention is defined by the scope of the appended claims.

10‧‧‧Portable moisture-proof device

11‧‧‧ cabinet

12‧‧‧

13‧‧‧ Door handle

14‧‧‧door lock

15‧‧‧temperature and humidity meter

16‧‧‧Baffle

17‧‧‧First room

18‧‧‧Second room

19‧‧‧Pumping cylinder

20‧‧‧First fan

21‧‧‧second fan

22‧‧‧Thermal chip

23‧‧‧Battery

24‧‧‧Voltage Converter

25‧‧‧External power plug

26‧‧‧Hand-cranked generator

27‧‧‧ solar panels

30‧‧‧USB connection埠

31‧‧‧ switch

32‧‧‧Power on indicator

33‧‧‧System abnormality indicator

34‧‧‧ sensor

Claims (6)

A portable moisture-proof device is basically a box having a door on one side of the box, the user opens the door to put the item into the box, and closes the door for dehumidification. The portable moisture-proof device comprises: a partition disposed in an inner space of the box, the partition dividing the inner space into a first chamber and a second chamber, wherein the first chamber serves as a dehumidification space. For the user to place the item to be dehumidified, the second chamber is used to set various devices, the volume of the first chamber is larger than the volume of the second chamber; and a pumping module comprising a pumping cylinder. The air pumping cylinder is disposed in the second chamber; a heat dissipating module includes a first fan, a second fan, and a thermoelectric wafer sandwiched between the first fan and the second fan, the thermoelectric wafer has a heat absorbing end and a row of hot ends on opposite sides of the heat absorbing end, the first fan is in contact with the heat absorbing end of the thermoelectric wafer, and the second fan is in contact with the heat venting end of the thermoelectric chip, the first fan is disposed at Bonded to the first volume And the second chamber, the thermal energy of the dehumidification space of the first chamber is guided to the heat absorption end of the thermoelectric wafer, and the second fan is exposed to the outside of the box for discharging the thermoelectric wafer The heat energy of the end is discharged to the external environment; an external power plug, a hand-cranked generator and a solar panel, the external power plug and the handle of the hand-cranked generator are exposed to the outside of the box, and the external power plug is connected In the second chamber, the solar panel is placed On the upper side of the box, the external power plug is used for inputting the commercial power, the hand-cranked generator is used to convert the hand kinetic energy into electric power, the solar panel is used to convert solar energy into electric power, and a battery, The utility model is configured to store electric power from the external power plug, the hand-cranked generator and the solar panel, and provide power for the portable moisture-proof device. The portable moisture-proof device according to claim 1, further comprising: a USB port, which is exposed on an outer side of the box, and is electrically connected to the battery, and the USB port is used for electronic products. Connected, the stored power of the battery is provided to the electronic product connected to the USB port via the USB port. The portable moisture-proof device according to claim 1, wherein the thermoelectric wafer is formed by arranging a plurality of P-type semiconductors and an N-type semiconductor, and the upper surface of the P-type semiconductor and the N-type semiconductor are electrically connected by a conductive plate. The lower surface of the P-type semiconductor is connected to a DC positive electrode, and the lower surface of the N-type semiconductor is connected to a DC negative electrode, and the conductive plate side is covered by a heat absorption end substrate, and the P-type semiconductor and the underside of the N-type semiconductor are A row of hot end substrates is coated. The portable moisture-proof device according to claim 1, further comprising: a first strut having one end rotatably abutting against an upper side surface of the casing, the other end abutting against a back side of the solar panel, and a second strut having one end rotatably abutting the casing The upper side surface of the body abuts against the side of the second strut, and the first strut and the second strut are configured to adjust the angle of the solar panel at a horizontal plane. The portable moisture-proof device of claim 1, further comprising: an inductor disposed on a side wall of the casing in the first chamber for sensing a dehumidification space of the first chamber Temperature and/or humidity, the value sensed by the sensor is transmitted to the system for interpretation; and a power-on indicator and a system abnormal indicator are disposed on the outer side of the cabinet, and the system is used for the abnormal indicator To alert the user to an abnormal condition in the system. A dehumidification control method for a portable moisture-proof device includes the steps of: sensing a humidity value in a dehumidification space of the portable moisture-proof device by using a sensor; and determining whether the humidity value of the dehumidification space sensed by the sensor is higher than a a predetermined humidity value, the predetermined humidity value being a preset humidity value of the system, wherein the predetermined humidity value is considered to provide moisture protection for the article; when it is determined that the humidity value of the dehumidification space sensed by the sensor is higher than The predetermined humidity value, issuing a command to start dehumidification to perform dehumidification; Determining whether the dehumidification device in the portable moisture-proof device starts to operate, and if it is determined that the dehumidification device in the portable moisture-proof device does not start to operate, issuing a warning of abnormality of the system; determining the humidity value of the dehumidification space sensed by the sensor Whether it is lower than the predetermined humidity value, if not, the dehumidification operation is continued, and if so, a command to stop dehumidification is issued to stop the dehumidification operation; and it is determined whether the dehumidification device in the portable moisture-proof device stops operating, If it is determined that the dehumidification device in the portable moisture-proof device has not stopped running, a warning of system abnormality is issued.