CN111132529A

CN111132529A - Case moisture removing device

Info

Publication number: CN111132529A
Application number: CN202010111880.5A
Authority: CN
Inventors: 高雄
Original assignee: Foshan Minxiong Electromechanical Technology Co ltd
Current assignee: Foshan Minxiong Electromechanical Technology Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-05-08

Abstract

The invention relates to the field of electric control equipment, in particular to a moisture removing device for a case in a humid environment. The invention can solve the problem that the cabinet can not remove damp by itself to cause damage to the electrical equipment in a humid environment, realizes automatic or manual damp removal of the electrical cabinet, ensures the air in the cabinet to be dry, and effectively protects the electrical equipment. The invention is provided with an air inlet and an air outlet, and a filter screen (filter) is arranged at the air inlet, cold air in the atmosphere is sucked by a fan, and hot air with moisture is sent back to the atmosphere through the air outlet after being heated by a heater, thereby achieving the purpose of removing moisture. The dehumidification device is controlled by a humidity switch and/or a temperature switch, and when alternating current exists, the alternating current is automatically selected, and when the alternating current does not exist, the built-in storage battery is automatically selected to supply power, so that uninterrupted dehumidification is achieved. And before the main circuit board is powered on, the PLC can be used for controlling automatic moisture removal or manual moisture removal, so that the circuits and electronic elements in the case are protected from being damaged by moisture.

Description

Case moisture removing device

Technical Field

The invention relates to the field of electric control equipment, in particular to a moisture removing device for a case in a humid environment.

Background

Tunnels are designed in mountains, such as high-speed railway tunnels or high-speed tunnels, or under urban grounds, such as subways, which are very wet in such environments. When the electric equipment works, the temperature of the electric equipment can achieve the common moisture removing effect; however, when the electric equipment does not work or is placed in the tunnel for a long time, condensed water or seepage water or moisture is easy to exist in the case, and when the electric equipment is used again, short circuit damage is caused by dampness. Especially for electronic equipment placed in a tunnel, when the electronic equipment works, a cooling fan brings dust into a case, or the dust enters the case through a case gap and is distributed on a circuit board (because the dust in the tunnel is cement dust or carbon-containing black dust discharged from automobile exhaust or a mixture of the black dust and the cement dust), the dust is easy to conduct after being wetted, and therefore, when the electronic equipment is started again for use, the circuit board is damaged due to the short circuit of the wet dust on the circuit board.

Because the tools for tunnel construction are inconvenient to take out, the tools are mostly placed in the tunnel, particularly a magnetic welding gun, a creeping welding machine or a water stop welding machine, and workers are inconvenient to take out the tunnel, a built-in moisture removing device is needed to keep the dry environment in the case.

The power supply case is a case body for protecting the power supply, and the power supply is arranged in the case body. The power supply is often damaged by vulnerable components in the using process, and the electric appliance cannot be used after the vulnerable components are damaged, so that the working process is greatly influenced. To solve this problem, two sets of power supplies may be prepared, with one set being a backup. In this way, although the smooth operation can be ensured, the cost of purchasing the power supply is greatly increased. In order to reduce the purchase cost of power, generally adopt in the current construction to purchase a set of power, purchase some power components and parts that damage easily simultaneously as reserve, if: fuse tube, small circuit board, fan, switch and screw. For emergency maintenance, tools such as screwdrivers, flashlights, test pens, wire cutters, etc. are also provided. These spare small components and tools are usually maintained by an electrician or a warehouse manager, and after the power supply is damaged, only the electrician who keeps the spare components can maintain the spare components. Other electricians cannot maintain the device. In actual work, electricians on duty have many things, all work for three shifts within 8 hours, and spare components cannot be carried with the small equipment.

Once the power supply fails and needs to be maintained, electricians or warehouse keepers who keep spare components need to be found everywhere. Because the tunnel is bent forward and is continuously dug forwards, the length of the tunnel is hundreds of meters to dozens of kilometers, and the time from a construction position in the tunnel to an outside electrician or a warehouse keeper is from dozens of minutes to several hours, which brings great troubles to people and takes a lot of unnecessary time. In addition, some power supply cabinets with electrical appliances need to have good heat dissipation functions, such as: a magnetic welding gun power case, a creeping welder power case and a waterstop welder power case. However, magnetic welding gun power cabinets, creeping welder power cabinets, and waterstop welder power cabinets are typically operated in extremely harsh environments, such as: within the tunnel. When the power supply cabinet in the prior art works in a severe environment, the power supply can be damaged for various reasons. Meanwhile, although lighting equipment is arranged in the tunnel, the lamp fire cannot be turned on or off, the lamp fire is less bright and dark, the flashlight can be used, meanwhile, when the power supply case is placed in a dark place, the passing staff can be easily tripped over, great potential safety hazards exist, light can be additionally arranged on the case, the warning effect can be achieved, and the lighting effect can be achieved. The electrician who keeps the spare components and tools must carry the spare components and tools with him during work.

Disclosure of Invention

The invention aims to solve the problems and provides a case moisture removing device which can remove moisture when a case works in a humid environment and the temperature of the case cannot drive moisture, so that the air in the case is ensured to be dry and electrical equipment is effectively protected. The specific technical scheme of the invention is as follows:

a case moisture removal device: the dehumidifying device is at least provided with a heater, a circulating fan and a switch, wherein the heater and the circulating fan are controlled by the switch, and the heater is arranged behind the circulating fan.

Furthermore, the case moisture removing device is arranged in the case or outside the case;

when the circulating fan is built in, the case is provided with an air inlet and an air outlet, the air inlet is arranged in front of the circulating fan, and the air outlet is arranged behind the heater.

When the device is externally arranged, an air inlet is arranged on the moisture removing device, and an air outlet is arranged on the case; the connection part of the case and the moisture removing device is provided with a hot air port.

Furthermore, a filter screen is arranged at the air inlet, and the filter screen is a single mesh or a plurality of meshes; filter cotton or a folding fan type filter core is clamped between the net sheets; and a protective net is arranged in front of the filter screen.

Furthermore, the moisture removing devices in the case are one group or two groups; when two groups are arranged, one group is internal circulation, and the other group is external circulation provided with an air inlet and an air outlet; the air inlet and the air outlet are arranged above or below or on the left or on the right or in front of or behind the case, preferably, the air inlet is arranged below, and the air outlet is arranged above. The air inlet and the air outlet are in a shutter fixing type, a shutter type cover opening type, a rotary opening type, a hinge opening type, a plug opening type, a push-pull opening type, an electric box grid fixing type, a fan screen fixing type, and the air inlet is in a shutter air suction opening type, and the air outlet is in a shutter air blowing opening type, or an exhaust fan is additionally arranged on the inner side or the outer side of the air outlet.

Furthermore, the heating mode of the heater is resistance heating, electromagnetic induction heating or infrared light wave heating.

Further, the resistance heating is an electric heating wire, an electric heating tube, a resistance ring, a quartz tube, a ceramic tube or a radiating fin.

Further, the electric heating wire is heated by a round electric heating wire or a square electric heating wire.

Further, the heating temperature range in the heating cabinet is 10-150 ℃, 20-140 ℃, 30-130 ℃, 40-120 ℃, 50-110 ℃, 70-150 ℃ or 90-200 ℃, the internal circulation is preferably 30-60 ℃, and the external circulation is preferably 40-90 ℃.

Further, the circulating fan has a fixed rotating speed or a rotating speed controlled by a controller.

Further, the circulating fan is one of a double-stage axial flow fan, a single-stage axial flow fan or a centrifugal cooling fan;

a 40 mm by 40 mm aperture length 56 mm double-stage axial flow fan, a 45 mm by 45 mm aperture double-stage axial flow fan, a 50 mm by 50 mm aperture double-stage axial flow fan, a 60 mm by 60 mm aperture double-stage axial flow fan, a 70 mm by 70 mm aperture double-stage axial flow fan, an 80 mm by 80 mm aperture double-stage axial flow fan, a 90 mm by 90 mm aperture double-stage axial flow fan, a 110 mm by 110 mm aperture double-stage axial flow fan, a 120 mm by 120 mm aperture double-stage axial flow fan, a 40 mm by 40 mm aperture single-stage length 28 mm axial flow fan, a 40 mm by 40 mm aperture single-stage length 20 mm axial flow fan, a 40 mm by 40 mm aperture single-stage length 15 mm axial flow fan, a 40 mm by 40 mm aperture single-stage length 10 mm axial flow fan, a 45 mm by 45 mm aperture axial flow fan, a 50 mm by 50 mm aperture single-stage axial flow fan, one of a 60 mm by 60 mm diameter single-stage axial-flow fan, a 70 mm by 70 mm diameter single-stage axial-flow fan, an 80 mm by 80 mm diameter single-stage axial-flow fan, a 90 mm by 90 mm diameter single-stage axial-flow fan, a 110 mm by 110 mm diameter single-stage axial-flow fan, a 120 mm by 120 mm diameter single-stage axial-flow fan, a 40 mm by 20 mm centrifugal cooling fan, a 50 mm by 15 mm centrifugal cooling fan, a 60 mm by 15 mm centrifugal cooling fan, a 70 mm by 15 mm centrifugal cooling fan, a 75 mm by 30 mm centrifugal cooling fan, a 97 mm by 33 mm centrifugal cooling fan, and a 120 mm by 32 mm centrifugal cooling fan.

Further, the switch is a power switch, a humidity switch and/or a temperature switch;

the switch action is one or more of pressing type, seesaw type, stirring type, rotating type, capacitance touch screen type, resistance touch screen type and induction type.

Further, still include the PLC controller, the PLC controller is connected with temperature sensor and/or humidity transducer, temperature sensor and/or humidity transducer with the heater with circulating fan electric connection.

Furthermore, the power supply of the dehumidification device is a commercial power alternating current power supply or a built-in direct current power supply.

Further, the voltage of the power supply is: AC380V, AC220V, AC110V, AC48V, AC36V, AC24V, AC36V, AC18V, AC12V, AC9V, AC6V, AC5V, AC3V, AC1.5V, DC520V, DC300V, DC150V, DC48V, DC36V, DC24V, DC36V, DC18V, DC12V, DC9V, DC6V, DC5V, DC3V or DC1.5V;

further, a battery compartment or a space is arranged in the case and is provided with a storage battery, and the battery compartment or the space is arranged at the lower part in the case, and/or is arranged at the upper part in the case, and/or is arranged at the middle part in the case, and/or is arranged at the front part in the case, and/or is arranged at the rear part in the case, and/or is arranged at the left side in the case, and/or is arranged at the right side in the case;

furthermore, the storage battery is fixed in one of a stable manner of being placed in the battery compartment, and/or a stable manner of being placed in the battery compartment after being filled with foam, or a space in the case is bonded by double-faced adhesive, or a space in the case is fixed by a rope, or a space in the case is fixed by a screw, or a space in the case is fixed by a ribbon, or a space in the case is fixed by an adhesive tape.

The ultra-low voltage protector is characterized in that an ultra-low voltage protector circuit and a lamplight case shell are further installed in the case, and the case is further provided with a multi-port output which refers to two or more ports.

Furthermore, the moisture removal device is provided with a power supply case, and the power supply case comprises a circuit board and a radiator; the circuit board is electrically connected with pins of the high-heating element, the radiator is provided with a radiating part and a heat collecting part, the head of the high-heating element is fixedly connected with the heat collecting part of the radiator in a heat conducting manner, and the circuit board is positioned in the sealed chamber;

the head of the high-heating element extends out of the sealed chamber in a sealing way, and the heat dissipation part and the heat collection part of the radiator are positioned outside the sealed chamber; or the head of the high-heating element is positioned in the sealing chamber, the heat collection part of the radiator hermetically extends into the sealing chamber, and the heat dissipation part of the radiator is positioned outside the sealing chamber;

the electromagnetic heater power supply capable of isolating and radiating can normally work for a long time under the severe environment condition, the circuit board cannot fall on dust, and the circuit board cannot be burnt out due to the dust-affected short circuit.

Install light on the power supply machine case, this light not only can play the effect of warning, but also can play the effect of illumination, be provided with the containing box in the power supply machine case, this containing box can accomodate instrument commonly used and gadget, if: fuse tube, small circuit board, fan, switch and screw. Tools such as screwdrivers, flashlights, test pens, wire cutters, etc. may also be provided for emergency maintenance.

The working principle is as follows: because of the high temperature air can carry more moisture, the higher the temperature is, the higher the humidity in the air is, the lower the humidity in the air is, so when reducing along with the temperature, just produce the comdenstion water, when the humidity in the quick-witted case is not big, when communicating with the external world, the heater can be in a small amount of moisture is inhaled in the air, the temperature in the quick-witted case can be greater than outside temperature simultaneously, can produce the high atmospheric pressure in the quick-witted case, the invasion of external moisture of separation, the quick-witted case shell contacts with external low temperature simultaneously, the difference in temperature will produce on the quick-witted case shell, so will divide a small amount of slight drop of water on the inner wall of quick-witted case shell, can not fall on the circuit board, so when interior moisture is little, also can only do the inner loop and remove the tide. Or the air output is adjusted through the rotating speed of the air inlet fan, so that the invasion of external dust particles is reduced.

Two sets of built-in dehumidifying devices can be arranged in the case, one set of the dehumidifying devices only performs internal circulation and is used when the humidity is not high, so that the atmospheric pressure is generated in the case, the case is not invaded by the external humidity, and the invasion of dust can be avoided. The other group is provided with an external circulation with an air inlet and an outlet communicated with the external atmosphere, when the humidity is high, the temperature difference effect is utilized to generate high temperature in the case, and the fan brings the high-temperature air into the external atmosphere, thereby achieving the aim of removing the humidity.

The dehumidifying device of the invention is controlled by a humidity switch or a timing switch to generate heat by a heating wire or a heater, and uses a fan in a case to circulate air flow to achieve the dehumidifying effect. The alternating current can be automatically selected when the alternating current exists, and the built-in storage battery can be automatically selected when the alternating current does not exist, so that uninterrupted dehumidification is achieved. Or before the main circuit board is powered on, the power can be transmitted to the circuit board after automatic moisture removal or manual moisture removal. And when the temperature of the case working in a humid environment does not reach the moisture removing effect, the case can work and remove moisture at the same time. The dust in the chassis after being removed with moisture can not be conducted, and the electronic equipment can be effectively protected.

Drawings

FIG. 1 is a schematic view of a moisture removing device according to the present invention;

FIG. 2-1 is a schematic diagram of a moisture removing device according to the present invention;

FIG. 2-2 is a block diagram of the electrical circuit connection of the dehumidifying apparatus of the present invention 1;

FIGS. 2-3 are block diagrams of the electrical connections of the dehumidifying apparatus of the present invention 2;

FIGS. 2-4 are block diagrams of the electrical connections of the dehumidifying apparatus of the present invention 3;

FIGS. 2-5 are block diagrams of the electrical connections of the dehumidifying apparatus of the present invention 4;

FIG. 3-1 is a main circuit diagram of the moisture removing device circuit of the present invention;

FIG. 3-2 is a schematic view of the circuit connection circuit of the dehumidifying device of the present invention shown in FIG. 1;

FIGS. 3-3 are circuit connecting circuits of the dehumidifying device of the present invention shown in FIG. 2;

FIGS. 3-4 are circuit connecting circuits of the dehumidifying device of the present invention shown in FIG. 3;

FIGS. 3-5 are circuit connecting circuits of the dehumidifying device of the present invention shown in FIG. 4.

FIG. 4-1 is a block diagram of the structure of the built-in internal circulation dehumidifying device 1 of the present invention;

FIG. 4-2 is a block diagram of the structure of the built-in internal circulation dehumidifying device of the present invention 2;

FIG. 5-1 is a block diagram of the external circulation dehumidifying device of the present invention 1;

FIG. 5-2 is a block diagram of the external circulation dehumidifying device of the present invention shown in FIG. 2;

FIG. 6-1 is a block diagram of the structure of the built-in internal and external dual cycle dehumidification device of the present invention 1;

FIG. 6-2 is a block diagram of the structure of the built-in internal and external dual cycle dehumidification device of the present invention 2;

FIG. 6-3 is a block diagram of the structure of the built-in internal and external dual cycle dehumidification device of the present invention 3;

FIG. 7-1 is a block diagram of the external internal circulation dehumidifying device of the present invention 1;

FIG. 7-2 is a block diagram of the external internal circulation dehumidifying device of the present invention shown in FIG. 2;

FIG. 8-1 is a block diagram of the external circulation dehumidifying device of the present invention 1;

FIG. 8-2 is a block diagram of the external circulation dehumidifying device of the present invention shown in FIG. 2;

FIG. 9-1 is a block diagram of the external internal and external dual cycle dehumidifying device of the present invention shown in FIG. 1;

FIG. 9-2 is a block diagram of the external internal and external dual cycle dehumidifying device of the present invention shown in FIG. 2;

FIG. 9-3 is a block diagram of the external internal and external dual cycle dehumidifying device of the present invention shown in FIG. 3;

FIG. 10-1 is a schematic view of the open door configuration of the present invention 1;

FIG. 10-2 is a schematic illustration of the open door construction of the present invention 2;

fig. 10-3 are schematic views of the open door construction of the present invention 3;

FIGS. 10-4 are schematic views of the open door construction of the present invention 4;

FIGS. 10-5 are schematic views of the open door construction of the present invention 5;

FIG. 11 is a schematic view of a power supply enclosure according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a second embodiment of a power supply enclosure according to the present invention;

FIG. 13 is a third schematic view of a power supply enclosure structure according to the present invention;

1, a circuit board; 1-6-high heating element; 1-7-low-heating component; 2, a radiator; 2-1 to the heat dissipation part; 2-2 to the heat collecting part; 3, a cooling fan; 4, a case; 5, a heat dissipation chamber; 6, sealing the chamber; 7, sealing the partition plate; 8-sealing element.

Detailed Description

The invention will be further explained with reference to the drawings in the specification:

as shown in the attached figure 1, the invention is characterized in that a circulating fan and a heater are electrically connected in a case.

The heater adopts electromagnetic heating or infrared heating or resistance heating; the resistance heating is selected according to the requirement, and particularly, one of a resistance wire or a resistance ring or a quartz tube or a ceramic tube is adopted.

The circulating fan is one of a double-stage axial flow fan or a single-stage axial flow fan or a centrifugal cooling fan, and the specific size can be selected for standby according to the sizes of the case and the heater.

As for the switch, a humidity switch and/or a temperature switch can be selected according to requirements.

For the switch mode, one or more of a pressing type, a seesaw type, a toggle type, a rotating type, a capacitance touch screen type, a resistance touch screen type or an induction type is selected according to requirements.

In addition, in order to further comprise a PLC controller, the PLC controller is connected with a temperature sensor and/or a humidity sensor, and the temperature sensor and/or the humidity sensor are electrically connected with the heater and the circulating fan.

In addition, a ventilation window is further arranged on the case, and a ventilation net is arranged on the ventilation window.

The power supply of the dehumidification device is a commercial power alternating current power supply or a built-in direct current power supply. The voltage of the power supply is: AC380V, AC220V, AC110V, AC48V, AC36V, AC24V, AC36V, AC18V, AC12V, AC9V, AC6V, AC5V, AC3V, AC1.5V, DC520V, DC300V, DC150V, DC48V, DC36V, DC24V, DC36V, DC18V, DC12V, DC9V, DC6V, DC5V, DC3V, or DC1.5V.

When the built-in direct current power supply is selected, a battery bin or a space is arranged in the case, the storage battery is installed, and the battery bin and/or the space can be arranged at the lower part in the case, and/or arranged at the upper part in the case, and/or arranged at the middle part in the case, and/or arranged at the front part in the case, and/or arranged at the rear part in the case, and/or arranged at the left side in the case, and/or arranged at the right side in the case. The storage battery can be stably placed in the battery compartment, and/or the storage battery can be stably placed in the battery compartment after being filled with foam, or the space in the case is adhered by double-faced adhesive, or the space in the case is fixed by a rope, or the space in the case is fixed by a screw, or the space in the case is fixed by a ribbon, or the space in the case is fixed by an adhesive tape.

Referring to fig. 2-1 and fig. 3-1, the power switch is connected to the power switch in the case, and the power switch is connected to the moisture removing device to control the moisture removing device to be turned on or off.

Referring to fig. 2-2 and fig. 3-2, a first connection mode of the moisture removing device circuit is changed, and a humidity switch is connected in series on the basis of the first connection mode, so as to control the moisture removing device to be turned on or off within a certain humidity range.

Referring to fig. 2-3 and fig. 3-3, a second connection mode of the moisture removing device circuit of the present invention is that a humidity switch and a temperature switch are connected in series on the basis of the basic connection mode to control the moisture removing device to be turned on or off within a certain humidity and temperature range.

Referring to fig. 2-4 and fig. 3-4, a third flexible connection mode of the moisture removing device circuit is shown, on the basis of the second flexible connection mode, a commercial power alternating current power supply and a built-in direct current power supply are connected, and when the moisture removing device is used, the power supply of the moisture removing device can be selected according to the use condition, so that the moisture removing requirements under different working states or rest states are met.

Referring to the attached drawings 2-5 and 3-5, a flexible connection mode of the moisture removing device circuit is a fourth mode, and on the basis of the third flexible connection mode, a PLC (programmable logic controller) replaces a temperature switch and a humidity switch to realize sensing of temperature and humidity in a machine box and work control of a heater, so that accurate control of moisture removal is achieved.

The position arrangement of the moisture removing device in the power supply cabinet can form various structural modes, specifically:

the moisture removing structure with built-in internal circulation is formed as shown in fig. 4-1 and fig. 4-2, and the moisture removing device is arranged in the power supply cabinet to directly remove moisture in the cabinet.

The working principle is as follows: the inner circulation heats the water vapor in the case to form a pressure higher than the atmospheric pressure, so as to isolate the reentry of the external water vapor, and the pressurized water vapor can leave the circuit board and the elements on the circuit board and attach to the inner wall of the case. Because the outside of the housing is in contact with the atmosphere, the temperature of the housing is lower than the circuit board and the components on the circuit board. The dehumidification mode is suitable for the case in the not big condition of vapor and water use like this.

As shown in fig. 5-1 and 5-2, a dehumidifying structure with built-in external circulation is formed, an air outlet is arranged at the top of the case, an air inlet is arranged at the circulating fan of the case, the air entering the case from the outside is heated by the heater and then discharged through the air outlet, and meanwhile, the moisture in the case is brought out together.

As shown in fig. 6-1 and 6-2, the dehumidification mechanism with built-in internal and external double circulation is formed by combining fig. 4 and 5, the internal and external double circulation can be formed as required, the water vapor removal efficiency is improved, and different circulation modes can be selected according to actual conditions. In addition, as shown in fig. 6-3, a door cover can be arranged at the air port, and internal circulation or external circulation is formed by opening or closing the door cover, so that only the door cover switch is operated, two sets of moisture removing structures are not needed, and the air conditioner is more economical and practical.

As shown in fig. 7-1 and 7-2, an external internal circulation moisture removing structure is formed, and the moisture removing device is arranged outside the power supply case to directly remove moisture in the case.

As shown in fig. 8-1 and 8-2, an external circulation dehumidification structure is formed, an air outlet is arranged at the top of the case, an air inlet is arranged at the position of a circulation fan of the external dehumidification device, and corresponding hot air ports are arranged on the dehumidification device and the case, so that the heater heats air entering the dehumidification device from the outside and then enters the case through the hot air ports, and the water and air in the case are taken out from the air outlet of the case.

As shown in fig. 9-1 and 9-2, the external internal and external dual-cycle dehumidification mechanism is formed by combining fig. 7 and 8, internal and external dual cycles can be formed as required, the water vapor removal efficiency is improved, and different cycle modes can be selected according to actual conditions. In addition, as shown in fig. 9-3, a door cover can be arranged at the air port, and internal circulation or external circulation is formed by opening or closing the door cover, so that only the door cover switch is operated, two sets of moisture removing structures are not needed, and the air conditioner is more economical and practical.

As shown in fig. 10, fig. 10-1 shows a cover opening type, fig. 10-2 shows a rotary door type, fig. 10-3 shows a plug opening type, fig. 10-4 shows a louver type, and fig. 10-5 shows a louver type inner side additional exhaust fan, which can increase the exhaust volume and enhance the dehumidifying effect.

The invention adopts an electromagnetic heater power supply capable of isolating and radiating heat as shown in figures 11 and 12, and comprises a circuit board 1 and a radiator 2, wherein the circuit board 1 is electrically connected with pins of high-heat-generating components 1-6, the radiator 2 is provided with a heat radiating part 2-1 and a heat collecting part 2-2, the head of the high-heat-generating components 1-6 is fixedly connected with the heat collecting part 2-2 of the radiator 2 in a heat conduction manner, and the circuit board 1 is positioned in a sealing chamber 6. The head of the high-heat-generation component 1-6 hermetically extends out of the sealed chamber 6, and the heat dissipation part 2-1 and the heat collection part 2-2 of the radiator 2 are positioned outside the sealed chamber 6. Of course, as shown in fig. 13, the head of the high heat generating component 1-6 may be located in the sealed chamber 6, the heat collecting part 2-2 of the heat sink 2 hermetically extends into the sealed chamber 6, and the heat dissipating part 2-1 of the heat sink 2 is located outside the sealed chamber 6.

The circuit board is positioned in the sealing chamber; the head of the high-heating element extends out of the sealing chamber in a sealing mode, the heat dissipation part and the heat collection part of the radiator are located outside the sealing chamber, or the head of the high-heating element is located in the sealing chamber, the heat collection part of the radiator extends into the sealing chamber in a sealing mode, and the heat dissipation part of the radiator is located outside the sealing chamber.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a case moisture removal device which characterized in that: the dehumidifying device is at least provided with a heater, a circulating fan and a switch, wherein the heater and the circulating fan are controlled by the switch, and the heater is arranged behind the circulating fan.

2. The cabinet dehumidifying device of claim 1, wherein: the case moisture removing device is arranged in the case or outside the case;

when the circulating fan is built in, an air inlet and an air outlet are arranged on the case, the air inlet is arranged in front of the circulating fan, and the air outlet is arranged behind the heater;

3. The cabinet dehumidifying device of claim 2, wherein: a filter screen is arranged at the air inlet and is a single mesh or a plurality of meshes; filter cotton or a folding fan type filter core is clamped between the net sheets; and a protective net is arranged in front of the filter screen.

4. The chassis dehumidifying device of claim 2, wherein: the moisture removing devices in the case are one group or two groups; when two groups are arranged, one group is internal circulation, and the other group is external circulation provided with an air inlet and an air outlet; the air inlet and the air outlet are arranged above, below, on the left, on the right, in front of or behind the case, preferably, the air inlet is arranged below, and the air outlet is arranged above; the air inlet and the air outlet are in a shutter fixing type, a shutter type cover opening type, a rotary opening type, a hinge opening type, a plug opening type, a push-pull opening type, an electric box grid fixing type, a fan screen fixing type, and the air inlet is in a shutter air suction opening type, and the air outlet is in a shutter air blowing opening type, or an exhaust fan is additionally arranged on the inner side or the outer side of the air outlet.

5. The chassis dehumidifying device of claim 1, wherein: the heating mode of the heater is resistance heating, electromagnetic induction heating or infrared light wave heating;

the resistance heating is an electric heating wire, an electric heating tube, a resistance ring, a quartz tube, a ceramic tube or a radiating fin;

the electric heating wire is heated by a round electric heating wire or a square electric heating wire;

the heating temperature range in the heating cabinet is 10-150 ℃, 20-140 ℃, 30-130 ℃, 40-120 ℃, 50-110 ℃, 0-150 ℃ or 90-200 ℃, the internal circulation is preferably 30-60 ℃, and the external circulation is preferably 40-90 ℃.

6. The cabinet dehumidifying device of claim 1, wherein: the circulating fan is in a fixed rotating speed or the rotating speed is controlled by a controller;

the circulating fan is one of a double-stage axial flow fan, a single-stage axial flow fan or a centrifugal cooling fan;

a 40 mm by 40 mm aperture length 56 mm double-stage axial flow fan, a 45 mm by 45 mm aperture double-stage axial flow fan, a 50 mm by 50 mm aperture double-stage axial flow fan, a 60 mm by 60 mm aperture double-stage axial flow fan, a 70 mm by 70 mm aperture double-stage axial flow fan, an 80 mm by 80 mm aperture double-stage axial flow fan, a 90 mm by 90 mm aperture double-stage axial flow fan, a 110 mm by 110 mm aperture double-stage axial flow fan, a 120 mm by 120 mm aperture double-stage axial flow fan, a 40 mm by 40 mm aperture single-stage length 28 mm axial flow fan, a 40 mm by 40 mm aperture single-stage length 20 mm axial flow fan, a 40 mm by 40 mm aperture single-stage length 15 mm axial flow fan, a 40 mm by 40 mm aperture single-stage length 10 mm axial flow fan, a 45 mm by 45 mm aperture axial flow fan, a 50 mm by 50 mm aperture single-stage axial flow fan, one of a 60 mm by 60 mm diameter single-stage axial-flow fan, a 70 mm by 70 mm diameter single-stage axial-flow fan, an 80 mm by 80 mm diameter single-stage axial-flow fan, a 90 mm by 90 mm diameter single-stage axial-flow fan, a 110 mm by 110 mm diameter single-stage axial-flow fan, a 120 mm by 120 mm diameter single-stage axial-flow fan, a 40 mm by 20 mm centrifugal cooling fan, a 50 mm by 15 mm centrifugal cooling fan, a 60 mm by 15 mm centrifugal cooling fan, a 70 mm by 15 mm centrifugal cooling fan, a 75 mm by 30 mm centrifugal cooling fan, a 97 mm by 33 mm centrifugal cooling fan, or a 120 mm by 32 mm centrifugal cooling fan.

7. The chassis dehumidifying device of claim 1, wherein: the switch is as follows: one or more of a power switch, a humidity switch and a temperature switch; the switch action is one or more of pressing type, seesaw type, stirring type, rotating type, capacitance touch screen type, resistance touch screen type and induction type.

8. The cabinet dehumidifying device of claim 1, wherein: the device also comprises a PLC, wherein the PLC is connected with a temperature sensor and/or a humidity sensor, and the temperature sensor and/or the humidity sensor are electrically connected with the heater and the circulating fan;

the ultra-low voltage protector is characterized in that an ultra-low voltage protector circuit and a lamplight case shell are installed in the case, the shell is provided with a multi-port output, and the multi-port output refers to two or more ports.

9. The cabinet dehumidifying device of claim 1, wherein: the power supply of the dehumidification device is a commercial power alternating current power supply or a built-in direct current power supply;

the voltage of the power supply is: AC380V, AC220V, AC110V, AC48V, AC36V, AC24V, AC36V, AC18V, AC12V, AC9V, AC6V, AC5V, AC3V, AC1.5V, DC520V, DC300V, DC150V, DC48V, DC36V, DC24V, DC36V, DC18V, DC12V, DC9V, DC6V, DC5V, DC3V or DC1.5V;

arranging a battery compartment or space in the case, installing a storage battery, wherein the battery compartment or space is arranged at the lower part in the case, and/or arranged at the upper part in the case, and/or arranged at the middle part in the case, and/or arranged at the front part in the case, and/or arranged at the rear part in the case, and/or arranged at the left side in the case, and/or arranged at the right side in the case;

the storage battery is stably placed in the battery bin, and/or is stably placed in the battery bin after being filled with foam, the space in the case is bonded by double-faced adhesive, the space in the case is fixed by a rope, the space in the case is fixed by a screw, the space in the case is fixed by a binding belt, and the space in the case is fixed by an adhesive tape.

10. The cabinet dehumidifying device of claim 1, wherein: the dehumidification device is provided with a power supply case, and the power supply case comprises a circuit board and a radiator; the circuit board is electrically connected with pins of the high-heating element, the radiator is provided with a radiating part and a heat collecting part, the head of the high-heating element is fixedly connected with the heat collecting part of the radiator in a heat conducting manner, and the circuit board is positioned in the sealed chamber;

the power supply cabinet is provided with a light shell, and a storage box is arranged in the power supply cabinet.