CN106937512B - Dehumidifier applied to electrical equipment box - Google Patents
Dehumidifier applied to electrical equipment box Download PDFInfo
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- CN106937512B CN106937512B CN201511017558.1A CN201511017558A CN106937512B CN 106937512 B CN106937512 B CN 106937512B CN 201511017558 A CN201511017558 A CN 201511017558A CN 106937512 B CN106937512 B CN 106937512B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
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Abstract
The invention discloses a dehumidifier applied to an electrical equipment box body, which comprises an equipment shell, a mechanical frame, a circuit board bin and a mechanical bin. The internal devices of the mechanical bin comprise a fan, a fan cover, a large radiating fin, a refrigerating fin, a small radiating fin and a water tank, wherein a groove is formed above the main body of the large radiating fin to form the size of an air channel. The air duct of the dehumidifier is composed of an air inlet, an air duct and an air outlet, the air inlet is composed of a fan and round holes in the front panel of the dehumidifier device shell, the air duct is a groove in the upper end of a large radiating fin, the air outlet comprises a refrigerating fin hot-face air outlet and a refrigerating fin cold-face air outlet, and the refrigerating fin hot-face air outlet is a rectangular hole in the left side and the right side of the device shell corresponding to the mechanical bin. The dehumidifier of the invention automatically starts the dehumidification work, and automatically stops the work after the dehumidification is finished, thereby completing the dehumidification task in a short time. The device intermittently and effectively works in a short time, and the effects of saving electricity, saving energy and protecting environment are achieved. The dehumidifier of the invention integrates the design of an environment monitoring and dehumidifying integrated structure.
Description
Technical Field
The invention relates to the field of electricity, in particular to a dehumidifier applied to an electrical equipment box body and an automatic dehumidifying method thereof.
Background
In the electrical field, various live cabinets in a transformer substation, live cabinets in a distribution network and various live cabinets in rail transit have relatively high air requirements on the environment and need to be kept in a continuous dry air environment, but due to seasonal climate and the environment of the installation position of the live cabinets, dehumidification equipment is generally installed in the live cabinets. Although traditional heating type dehumidifier has the effect of dehumidification, nevertheless moist air is in the inside of electrified cabinet, when the external environment cooled down by a wide margin, moist air very easily forms the condensation, and this will seriously harm equipment operation safety. And when traditional dehumidifier during operation, equipment itself can give off heat, and this kind of phenomenon can accelerate the ageing degree of dehumidification equipment cable around, can cause serious safety problem when serious. Draining water at present; except that the wet method forms a condensation surface through a liquefying device, so that water vapor in the air can form liquid water on the condensation surface, and then the liquid water is discharged out of the box through a specific drainage device, the dehumidification method does not solve the problem of condensation formed in the electrified box cabinet.
How to be in making dehumidification equipment small in size lightly adapt to indoor outer electrified cabinet installation simultaneously to thoroughly dehumidify in the electrified cabinet.
Disclosure of Invention
The invention aims to solve the problems that the size and the weight of the dehumidifying equipment are reduced, so that the dehumidifying equipment is suitable for being installed in a narrow space of an indoor and outdoor electrified cabinet, and the electrified cabinet can be thoroughly dehumidified.
The invention relates to a dehumidifier applied to an electrical equipment box body, which comprises an equipment shell, a mechanical frame, a circuit board bin and a mechanical bin, and is characterized in that: the equipment shell comprises a front shell formed by an upper panel, a lower panel, a left panel, a right panel, a front panel, a rear shell cover and a closed cube, wherein the front shell and the rear shell cover are matched to form the closed cube; the position of the circuit board bin of the front panel of the front shell of the equipment shell is provided with a rectangular frame for placing an input display module panel, and a wiring hole and a heat dissipation hole are respectively formed in the left panel and the right panel; the position in the positive panel machinery storehouse of equipment housing procapsid is equipped with the round hole, controls the air outlet that two panels were equipped with, and lower panel is equipped with the round hole.
The mechanical bin is formed by mounting mechanical parts and an equipment air duct by using a mechanical frame; the mechanical parts in the mechanical bin comprise a fan, a fan cover, a large radiating fin, a refrigerating fin, a small radiating fin and a water tank. The fan cover comprises an iron net and a fan fixing frame. The iron net is fixed at the position of a circular hole of a front shell front panel of the equipment shell; the fan fixing frame is fixed inside the round hole of the front shell front panel of the equipment shell. The radiating fins in the transverse direction are uniformly distributed on one plane of the large radiating fin main body, two small circular grooves are formed in the two sides of the upper surface of the fin at the bottommost layer and the lower surface of the fin at the topmost layer, the diameter of each small circular groove is smaller than the thickness of the base, and a groove is formed in the middle of the upper portion of the large radiating fin main body. The middle part and the bottom part of the main body of the large radiating fin are respectively provided with a connecting hole for installing and fixing the small radiating fin and the water tank.
The radiating fins in the longitudinal direction are uniformly distributed on one plane of the small radiating fin main body, the edges of two longitudinal sides are respectively provided with a protruding end part, and the end parts are respectively provided with a connecting hole. The transverse width of the small radiating fin main body is smaller than the groove length of the water groove, and the width of the fins of the small radiating fin is smaller than the groove width of the water groove.
The plane of the large radiating fin without the radiating fins and the plane of the small radiating fin without the radiating fins are oppositely arranged, matched bolts are utilized to penetrate through the connecting holes at the corresponding positions of the two radiating fins for fixed installation, the refrigerating piece is placed in the middle, the hot surface of the refrigerating piece is opposite to the plane of the large radiating fin, and the cold surface of the refrigerating piece is opposite to the plane of the small radiating fin. The length and the width of the refrigeration sheet are respectively smaller than those of the small cooling sheets. The upper end of the small radiating fin is flush with the bottom end of the groove of the large radiating fin, the lower end of the small radiating fin is flush with the notch plane of the water tank, and the water tank is tightly installed on the lower half part of the main body of the large radiating fin through bolts. The refrigerating fins and the small radiating fins are arranged in the space in the vertical direction of the plane of the notch of the water tank side by side. The fan is arranged on the plane of the large radiating fin with the radiating fins, and the matched fan cover is arranged in the air inlet direction of the fan. The size of the fan cover is the same as that of the large radiating fins.
The upper end of the water tank is provided with an open water collecting opening, the lower end of the water tank is provided with a cylindrical water outlet, and the middle part of the water tank is inclined and gathered towards the center of the bottom. The water outlet passes through a round hole on the lower panel of the front shell of the equipment shell. And a water outlet at the lower end of the water tank protrudes out of the lower panel of the front shell of the dehumidifier equipment shell, and the water outlet discharges condensed water out of the electrified box cabinet through a connecting water pipe.
Furthermore, the air duct of the dehumidifier applied to the electrical equipment box body consists of an air inlet, an air duct and an air outlet. The air inlet consists of a fan cover and a round hole of a front panel of a shell of the dehumidifier device; the air channel consists of a fan, large radiating fins, grooves at the upper ends of the large radiating fins and small radiating fins; the air outlet includes two parts of refrigeration piece hot side air outlet and refrigeration piece cold side air outlet, and refrigeration piece hot side air outlet is the shell equipment structure left and right sides slot that big fin transverse direction both sides correspond, and refrigeration piece cold side air outlet is the shell equipment structure left and right sides slot that little fin transverse direction both sides correspond.
Further, based on the automatic dehumidification method applied to the dehumidifier of the electrical equipment box body, a hardware circuit mainly comprises a temperature and humidity sensor, an internal refrigeration piece cold surface and hot surface temperature monitoring sensor, a microprocessor control unit, a power supply control unit, an input display module and a response alarm module. The hardware circuit is mounted in the circuit board bin by a mechanical frame.
The input display module comprises an LED indicator light, a nixie tube and a key. The response alarm module comprises a buzzer and a communication transceiver. The power supply control unit comprises a 12V power supply module, a 5V power supply module, a main board power supply module, a refrigeration sheet power supply, a fan power supply, a data/control port connector and an external connector. The mainboard power supply module is connected with the power end of the microprocessor through a wire. The data interface of the temperature and humidity sensor is connected with the data interface of the microprocessor through a matched data line, the data interface of the internal sensor is connected with the data interface of the microprocessor through a matched data line and is connected with the data interface of the processor, and signals received by the sensor are transmitted to the microprocessor for analysis and processing. The data/control port connector of the power control unit is communicated with the data/control port connector of the microprocessor through a matched wire, so that the signal two-way communication between the power control unit and the microprocessor control unit is realized, and the temperature and humidity data acquisition and the control of the fan power supply and the refrigeration sheet power supply are realized. The wireless communication transceiver is connected with the wireless communication interface of the microprocessor through a matched connector. The input end of the nixie tube is connected with the data output end of the microprocessor through a wire, the input end of the key is connected with the data input interface of the microprocessor through a wire, and the input ends of the LED indicator light and the buzzer are respectively connected with the control output end of the microprocessor to realize the one-way control of the microprocessor.
The automatic control flow of the dehumidifier is as follows:
1) The nixie tube alternately displays the temperature and humidity information of the current environment, and a user sets a humidity threshold value through a key and starts the nixie tube through a 'confirm' button;
2) The temperature and humidity sensor detects the temperature and the humidity of the surrounding environment and transmits data to the microprocessor.
3) And the microprocessor compares the detected humidity data with a set humidity threshold value for judgment. And if the detected humidity data is smaller than the set humidity threshold value, returning to the step 2. And if the detected humidity data is larger than the set humidity threshold value, jumping to the next step.
4) The microprocessor controls the fan power supply and the refrigeration sheet power supply in the power supply control module to be started through the data/control interface, and the dehumidifier starts to dehumidify.
5) When the microprocessor detects that the environmental humidity value is lower than the humidity threshold value set by the user, the dehumidification is finished, and the step 2 is returned; and when the power supply of the dehumidifier is disconnected, ending the control.
The invention has the advantages that through the ingenious air duct design, the damp and hot air is blown into the equipment through the fan, and the damp and hot air in the electrified cabinet can be condensed into water through the refrigerating end arranged in the equipment and discharged out of the electrified cabinet, so that condensation can not be formed in the electrified cabinet even under the condition of greatly reducing the temperature of the external environment. And the device itself does not generate heat and has no effect on the surrounding cables.
When the humidity in the electrified cabinet reaches a set threshold value, the dehumidification machine can automatically start dehumidification, automatically stop dehumidification after dehumidification is finished, and finish dehumidification tasks in a short time. The intermittent effective work in a short time can achieve the effects of saving electricity, saving energy and protecting environment. The dehumidifier of the invention integrates the design of an environment monitoring and dehumidifying integrated structure.
Drawings
FIG. 1 is an exploded view of the dehumidifier apparatus of the present invention
FIG. 2 is an overall front view of the dehumidifier;
FIG. 3 is an exploded side view of the dehumidifier apparatus;
FIG. 4 is a diagram of the mechanical chamber and the circuit board chamber;
FIG. 5 is a rear exploded view of the mechanical magazine;
FIG. 6 is a side view of the mechanical chamber structure;
FIG. 7 is a view showing the structure of a large heat sink;
FIG. 8 is a view showing the structure of a water tank;
FIG. 9 is a schematic view of an air duct;
FIG. 10 is a circuit board hardware block diagram;
FIG. 11 is a block diagram of an automatic dehumidification software control;
in the figure: 1 is a fan, 2 is a fan cover, 2-1 is an iron net, 2-2 is a fan fixing frame, 3 is a large radiating fin, 4 is a refrigerating fin, 5 is a small radiating fin, and 6 is a water tank.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but it should not be construed that the scope of the above-described subject matter is limited to the examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses a dehumidifier for electrical equipment box, including equipment shell, mechanical frame, circuit board storehouse and mechanical storehouse, its characterized in that: the equipment shell comprises a front shell formed by an upper panel, a lower panel, a left panel, a right panel, a front panel, a rear shell cover and a closed cube, wherein the front shell and the rear shell cover are matched to form the closed cube, the inside of the equipment shell is divided into an upper part and a lower part through a partition plate, the upper part is a circuit board bin, and the lower part is a mechanical bin, specifically referring to fig. 4; a rectangular frame is arranged at the position of the circuit board bin of the front panel of the front shell of the equipment shell and used for placing an input display module panel, and particularly referring to fig. 2, a wiring hole and a heat dissipation hole are respectively formed in a left panel and a right panel; the position of the front panel mechanical bin of the front shell of the equipment shell is provided with a round hole, the left panel and the right panel are provided with air outlets with moments, and the lower panel is provided with a round hole, which is shown in figure 1.
The mechanical bin is formed by mounting mechanical parts and an equipment air duct by using a mechanical frame; the mechanical components in the mechanical bin comprise a fan 1, a fan cover 2, a large radiating fin 3, a refrigerating fin 4, a small radiating fin 5 and a water tank 6, and refer to fig. 3 specifically.
The fan 1 has two main functions: firstly, wind circulation flow in the air duct is formed, and secondly, the heat dissipation of the large radiating fins 3 is assisted. The fan cover 2 comprises an iron net 2-1 and a fan fixing frame 2-2, wherein the iron net 2-1 is fixed at a round hole position of a front shell front panel of the equipment shell; the fan fixing frame 2-2 is fixed inside a round hole of a front shell front panel of the equipment shell, so that the fan 1 is protected from being blocked by the outside to prevent rotating objects of the fan 1 from entering the equipment, and the fan 1 is prevented from being damaged. The radiating fins in the transverse direction are uniformly distributed on one plane of the main body of the large radiating fin 3, two small circular grooves are formed in the upper surface of the fin at the bottommost layer and the two sides of the lower surface of the fin at the topmost layer, the diameter of each small circular groove is smaller than the thickness of the base, and a groove is formed in the middle of the upper portion of the main body of the large radiating fin 3. The middle part and the bottom part of the main body of the large radiating fin 3 are respectively provided with a connecting hole for installing and fixing the small radiating fin 5 and the water tank 6, and particularly refer to fig. 7. Big fin 3 also has two functions, and first the upper end recess is the main factor that constitutes the wind channel, and the size of recess influences the performance of equipment, and second cools down for 4 hot faces of refrigeration piece, and protection refrigeration piece 4 avoids the damage because of overheated and lead to. The refrigerating fins 4 are mainly used to generate a refrigerating capacity to make moisture in the air reach a condensation point to form water droplets in the vicinity thereof. The radiating fins in the longitudinal direction are uniformly distributed on one plane of the main body of the small radiating fin 5, the edges of two longitudinal sides are respectively provided with a protruding end part, and the end parts are respectively provided with a connecting hole. The transverse width of the small radiating fin 5 main body is smaller than the groove length of the water tank 6, and the fin width of the small radiating fin 5 is smaller than the groove width of the water tank 6. The small radiating fins 5 are used for diffusing the refrigerating capacity of the refrigerating fins 4 and collecting water drops reaching a condensation point in the air. The water tank is used for draining water drops collected by the small cooling fins 5 and the refrigerating fins 4, see fig. 5 and 6 in particular.
The upper end of the water tank 6 is provided with an open water collecting opening, the lower end of the water tank is provided with a cylindrical water outlet, and the middle part of the water tank is inclined and gathered towards the center of the bottom, which is shown in figure 8. The water outlet passes through a round hole on the lower panel of the front shell of the equipment shell. And a water outlet at the lower end of the water tank 6 protrudes out of a panel below a front shell of the dehumidifier equipment shell, and the water outlet is connected with a water pipe to discharge condensed water out of the electrified box cabinet.
The plane of the large radiating fin 3 without radiating fins and the plane of the small radiating fin 5 without radiating fins are oppositely arranged, matched bolts are utilized to penetrate through connecting holes at corresponding positions of the two radiating fins for fixed installation, a refrigerating sheet 4 is placed in the middle, the hot surface of the refrigerating sheet 4 is opposite to the plane of the large radiating fin 3, and the cold surface of the refrigerating sheet 4 is opposite to the plane of the small radiating fin 3. Wherein the length and width of the refrigeration plate 4 are respectively smaller than those of the small cooling fins 5. The upper end of the small radiating fin 5 is flush with the bottom end of the groove of the large radiating fin 3, the lower end of the small radiating fin 5 is flush with the notch plane of the water tank 6, and the water tank 6 is tightly installed on the lower half part of the main body of the large radiating fin 3 through bolts. The refrigerating fins 4 and the small radiating fins 5 are arranged side by side in the space in the vertical direction of the notch plane of the water tank 6. The fan 1 is arranged on the plane of the large radiating fin 3 with radiating fins, and the matched fan cover 2 is arranged in the air inlet direction of the fan 1. The size of the fan cover 2 is the same as that of the large radiating fins 3.
The air duct of the dehumidifier is composed of an air inlet, an air duct and an air outlet, which is specifically shown in fig. 9. The air inlet is formed by a fan cover 2 and a round hole of a front panel of a shell of the dehumidifier; the air channel consists of a fan 1, a large radiating fin 3, a groove at the upper end of the large radiating fin 3 and a small radiating fin 5; the air outlet includes two parts of 4 hot face air outlets of refrigeration piece and 4 cold face air outlets of refrigeration piece, and 4 hot face air outlets of refrigeration piece are the shell equipment structure left and right sides slot that 3 horizontal direction both sides of big fin correspond, and 4 cold face air outlets of refrigeration piece are the shell equipment structure left and right sides slot that 5 horizontal direction both sides of little fin correspond.
The shell of the dehumidifier is rectangular, and the size of the shell is as follows: the height is 200mm, the width is 130mm, the thickness is 60mm, and the dehumidification effect is best in a relatively closed cabinet space with the size of 3 cubic meters.
Example 2:
the embodiment discloses a dehumidifier for electrical equipment box, including equipment shell, mechanical frame, circuit board storehouse and mechanical storehouse, its characterized in that: the equipment shell comprises a front shell formed by an upper panel, a lower panel, a left panel, a right panel, a front panel, a rear shell cover and a closed cube, wherein the front shell and the rear shell cover are matched to form the closed cube, the interior of the equipment shell is divided into an upper part and a lower part through a partition plate, the upper part is a circuit board bin, and the lower part is a mechanical bin, which is shown in figure 4 specifically; a rectangular frame is arranged at the position of the circuit board bin of the front panel of the front shell of the equipment shell and used for placing an input display module panel, and particularly referring to fig. 2, a wiring hole and a heat dissipation hole are respectively formed in a left panel and a right panel; the position of the front panel mechanical bin of the front shell of the equipment shell is provided with a round hole, the left panel and the right panel are provided with air outlets with moments, and the lower panel is provided with a round hole, which is shown in figure 1.
The mechanical bin is formed by mounting mechanical parts and an equipment air duct by using a mechanical frame; the mechanical components in the mechanical bin comprise a fan 1, a fan cover 2, a large radiating fin 3, a refrigerating fin 4, a small radiating fin 5 and a water tank 6, and refer to fig. 3 specifically.
The fan 1 has two main functions: firstly, wind circulation flow in the air duct is formed, and secondly, the heat dissipation of the large radiating fins 3 is assisted. The fan cover 2 comprises an iron net 2-1 and a fan fixing frame 2-2, wherein the iron net 2-1 is fixed at a round hole position of a front shell front panel of the equipment shell; the fan fixing frame 2-2 is fixed inside a round hole of a front shell front panel of the equipment shell, so that the fan 1 is protected from being blocked by the outside to prevent rotating objects of the fan 1 from entering the equipment, and the fan 1 is prevented from being damaged. The radiating fins in the transverse direction are uniformly distributed on one plane of the main body of the large radiating fin 3, two small circular grooves are formed in the upper surface of the fin at the bottommost layer and the two sides of the lower surface of the fin at the topmost layer, the diameter of each small circular groove is smaller than the thickness of the base, and a groove is formed in the middle of the upper portion of the main body of the large radiating fin 3. The middle part and the bottom part of the main body of the large radiating fin 3 are respectively provided with a connecting hole for installing and fixing the small radiating fin 5 and the water tank 6, and particularly refer to fig. 7. Big fin 3 also has two functions, and first the upper end recess is the main factor that constitutes the wind channel, and the size of recess influences the performance of equipment, and second cools down for 4 hot faces of refrigeration piece, and protection refrigeration piece 4 avoids the damage because of overheated and lead to. The cooling fins 4 are mainly used to generate cooling power, so that moisture in the air reaches a condensation point and forms water droplets in the vicinity of the condensation point. The radiating fins in the longitudinal direction are uniformly distributed on one plane of the main body of the small radiating fin 5, the edges of the two longitudinal sides are respectively provided with a protruding end part, and the end parts are respectively provided with a connecting hole. The transverse width of the small radiating fin 5 main body is smaller than the groove length of the water groove 6, and the fin width of the small radiating fin 5 is smaller than the groove width of the water groove 6. The small radiating fins 5 are used for diffusing the refrigerating capacity of the refrigerating fins 4 and collecting water drops reaching a condensation point in the air. The water tank is used for draining water drops collected by the small cooling fins 5 and the refrigerating fins 4, see fig. 5 and 6 in particular.
The water tank 6 is provided with a water collecting opening with an open upper end, a cylindrical water outlet at a lower end, and a middle part which is inclined and gathered towards the center of the bottom, as shown in fig. 8. The water outlet passes through a round hole on the lower panel of the front shell of the equipment shell. And a water outlet at the lower end of the water tank 6 protrudes out of a panel below the front shell of the dehumidifier equipment shell, and the water outlet discharges condensed water out of the electrified box cabinet through a connecting water pipe.
The plane of the large radiating fin 3 without radiating fins and the plane of the small radiating fin 5 without radiating fins are oppositely arranged, matched bolts are utilized to penetrate through connecting holes at corresponding positions of the two radiating fins for fixed installation, a refrigerating sheet 4 is placed in the middle, the hot surface of the refrigerating sheet 4 is opposite to the plane of the large radiating fin 3, and the cold surface of the refrigerating sheet 4 is opposite to the plane of the small radiating fin 3. Wherein the length and width of the refrigeration plate 4 are respectively smaller than those of the small cooling fins 5. The upper end of the small radiating fin 5 is flush with the bottom end of the groove of the large radiating fin 3, the lower end of the small radiating fin 5 is flush with the notch plane of the water tank 6, and the water tank 6 is tightly installed on the lower half part of the main body of the large radiating fin 3 through bolts. The refrigerating fins 4 and the small radiating fins 5 are arranged side by side in the space in the vertical direction of the notch plane of the water tank 6. The fan 1 is arranged on the plane of the large radiating fin 3 with radiating fins, and the matched fan cover 2 is arranged in the air inlet direction of the fan 1. The size of the fan housing 2 is the same as that of the large radiating fins 3.
The air duct of the dehumidifier is composed of an air inlet, an air duct and an air outlet, and is specifically shown in fig. 9. The air inlet consists of a fan cover 2 and a round hole of a front panel of a shell of the dehumidifier device; the air channel consists of a fan 1, a large radiating fin 3, a groove at the upper end of the large radiating fin 3 and a small radiating fin 5; the air outlet includes two parts of 4 hot side air outlets of refrigeration piece and 4 cold side air outlets of refrigeration piece, and 4 hot side air outlets of refrigeration piece are the shell equipment structure left and right sides slot that 3 horizontal direction both sides of big fin correspond, and 4 cold side air outlets of refrigeration piece are the shell equipment structure left and right sides slot that 5 horizontal direction both sides of little fin correspond.
The shell of the dehumidifier is rectangular, and the size of the shell is as follows: the height is 120mm, the width is 80mm, the thickness is 40mm, and the dehumidification effect is best in a relatively closed cabinet space with the size of 1 cubic meter.
Example 3:
the embodiment discloses a dehumidifier for electrical equipment box, including equipment shell, mechanical frame, circuit board storehouse and mechanical storehouse, its characterized in that: the equipment shell comprises a front shell formed by an upper panel, a lower panel, a left panel, a right panel, a front panel, a rear shell cover and a closed cube, wherein the front shell and the rear shell cover are matched to form the closed cube, the inside of the equipment shell is divided into an upper part and a lower part through a partition plate, the upper part is a circuit board bin, and the lower part is a mechanical bin, and the equipment shell is specifically shown in figure 4; a rectangular frame is arranged at the position of the circuit board bin of the front panel of the front shell of the equipment shell and used for placing an input display module panel, and particularly referring to fig. 2, a wiring hole and a heat dissipation hole are respectively formed in a left panel and a right panel; the position of the front panel mechanical bin of the front shell of the equipment shell is provided with a round hole, the left panel and the right panel are provided with air outlets with moments, and the lower panel is provided with a round hole, which is specifically shown in figure 1.
The mechanical bin is formed by mounting mechanical parts and an equipment air duct by using a mechanical frame; the mechanical components in the mechanical bin comprise a fan 1, a fan cover 2, a large radiating fin 3, a refrigerating fin 4, a small radiating fin 5 and a water tank 6, and refer to fig. 3 specifically.
The fan 1 has two main functions: firstly, wind circulation flow in the air duct is formed, and secondly, the heat dissipation of the large radiating fins 3 is assisted. The fan cover 2 comprises an iron net 2-1 and a fan fixing frame 2-2, and the iron net 2-1 is fixed at a round hole position of a front shell front panel of the equipment shell; the fan fixing frame 2-2 is fixed inside a round hole of a front shell front panel of the equipment shell, so that the fan 1 is protected from being blocked by the outside to prevent rotating objects of the fan 1 from entering the equipment, and the fan 1 is prevented from being damaged. The radiating fins in the transverse direction are uniformly distributed on one plane of the main body of the large radiating fin 3, two small circular grooves are formed in the upper surface of the fin at the bottommost layer and the two sides of the lower surface of the fin at the topmost layer, the diameter of each small circular groove is smaller than the thickness of the base, and a groove is formed in the middle of the upper portion of the main body of the large radiating fin 3. The middle part and the bottom part of the main body of the large radiating fin 3 are respectively provided with a connecting hole for installing and fixing the small radiating fin 5 and the water tank 6, and particularly refer to fig. 7. The big cooling fin 3 also has two functions, and first the upper end recess is the main factor that constitutes the wind channel, and the size of recess influences the performance of equipment, and second cools down for 4 hot faces of refrigeration piece, and protection refrigeration piece 4 avoids the damage because of overheated and lead to. The cooling fins 4 are mainly used to generate cooling power, so that moisture in the air reaches a condensation point and forms water droplets in the vicinity of the condensation point. The radiating fins in the longitudinal direction are uniformly distributed on one plane of the main body of the small radiating fin 5, the edges of two longitudinal sides are respectively provided with a protruding end part, and the end parts are respectively provided with a connecting hole. The transverse width of the small radiating fin 5 main body is smaller than the groove length of the water groove 6, and the fin width of the small radiating fin 5 is smaller than the groove width of the water groove 6. The small radiating fins 5 are used for diffusing the refrigerating capacity of the refrigerating fins 4 and collecting water drops reaching a condensation point in the air. The water tank is used for draining water drops collected by the small cooling fins 5 and the refrigerating fins 4, see fig. 5 and 6 in particular.
The water tank 6 is provided with a water collecting opening with an open upper end, a cylindrical water outlet at a lower end, and a middle part which is inclined and gathered towards the center of the bottom, as shown in fig. 8. The water outlet passes through a round hole on the lower panel of the front shell of the equipment shell. And a water outlet at the lower end of the water tank 6 protrudes out of a panel below the front shell of the dehumidifier equipment shell, and the water outlet discharges condensed water out of the electrified box cabinet through a connecting water pipe.
The plane of the large radiating fin 3 without radiating fins and the plane of the small radiating fin 5 without radiating fins are oppositely arranged, matched bolts are utilized to penetrate through connecting holes at corresponding positions of the two radiating fins for fixed installation, a refrigerating sheet 4 is placed in the middle, the hot surface of the refrigerating sheet 4 is opposite to the plane of the large radiating fin 3, and the cold surface of the refrigerating sheet 4 is opposite to the plane of the small radiating fin 3. Wherein the length and width of the refrigeration plate 4 are respectively smaller than those of the small cooling fins 5. The upper end of the small radiating fin 5 is flush with the bottom end of the groove of the large radiating fin 3, the lower end of the small radiating fin 5 is flush with the notch plane of the water tank 6, and the water tank 6 is tightly installed on the lower half part of the main body of the large radiating fin 3 through bolts. The refrigerating fins 4 and the small radiating fins 5 are arranged side by side in the space in the vertical direction of the notch plane of the water tank 6. The fan 1 is arranged on the plane of the large radiating fin 3 with radiating fins, and the matched fan cover 2 is arranged in the air inlet direction of the fan 1. The size of the fan cover 2 is the same as that of the large radiating fins 3.
The air duct of the dehumidifier is composed of an air inlet, an air duct and an air outlet, and is specifically shown in fig. 9. The air inlet is formed by a fan cover 2 and a round hole of a front panel of a shell of the dehumidifier; the air channel consists of a fan 1, a large radiating fin 3, a groove at the upper end of the large radiating fin 3 and a small radiating fin 5; the air outlet includes two parts of 4 hot face air outlets of refrigeration piece and 4 cold face air outlets of refrigeration piece, and 4 hot face air outlets of refrigeration piece are the shell equipment structure left and right sides slot that 3 horizontal direction both sides of big fin correspond, and 4 cold face air outlets of refrigeration piece are the shell equipment structure left and right sides slot that 5 horizontal direction both sides of little fin correspond.
The dehumidifier shell is rectangular, and the size of the dehumidifier shell is as follows: the height is 160mm, the width is 100mm, the thickness is 50mm, and the dehumidification effect is best in a relatively closed cabinet space with the size of 1.5 cubic meters.
Example 4:
based on an automatic dehumidification method applied to a dehumidifier of an electrical equipment box body, a hardware circuit mainly comprises a temperature and humidity sensor, an internal refrigeration piece cold surface and hot surface temperature monitoring sensor, a microprocessor control unit, a power supply control unit, an input display module and a response alarm module, and particularly refers to fig. 10. The hardware circuit is mounted in the circuit board bin by using a mechanical frame.
The input display module comprises an LED indicator light, a nixie tube and a key. The response alarm module comprises a buzzer and a communication transceiver. The power supply control unit comprises a 12V power supply module, a 5V power supply module, a main board power supply module, a refrigeration piece power supply, a fan power supply, a data/control port connector and an external connector. The mainboard power supply module is connected with the power supply end of the microprocessor through a wire. The data interface of the temperature and humidity sensor is connected with the data interface of the microprocessor through a matched data line, the data interface of the internal sensor is connected with the data interface of the microprocessor through a matched data line and is connected with the data interface of the processor, and signals received by the sensor are transmitted to the microprocessor for analysis and processing. The data/control port connector of the power control unit is communicated with the data/control port connector of the microprocessor through a matched wire, so that the signal two-way communication between the power control unit and the microprocessor control unit is realized, and the temperature and humidity data acquisition and the control of the fan power supply and the refrigeration sheet power supply are realized. The wireless communication transceiver is connected with the wireless communication interface of the microprocessor through a matched connector. The input end of the nixie tube is connected with the data output end of the microprocessor through a wire, the input end of the key is connected with the data input interface of the microprocessor through a wire, and the input ends of the LED indicator light and the buzzer are respectively connected with the control output end of the microprocessor to realize the one-way control of the microprocessor.
Referring to fig. 11, the automatic control flow of the dehumidifier is as follows:
1) The nixie tube alternately displays the temperature and humidity information of the current environment, and a user sets a humidity threshold value through a key and starts the nixie tube through an 'affirmation' button.
2) The temperature and humidity sensor detects the temperature and humidity of the surrounding environment and transmits data to the microprocessor.
3) And the microprocessor compares the detected humidity data with a set humidity threshold value for judgment. And if the detected humidity data is smaller than the set humidity threshold value, returning to the step 2. And if the detected humidity data is larger than the set humidity threshold value, jumping to the next step.
4) The microprocessor controls the fan power supply and the refrigeration sheet power supply in the power supply control module to be started through the data/control interface. The dehumidifier starts dehumidifying.
5) When the microprocessor detects that the environmental humidity value is lower than the humidity threshold value set by the user, the dehumidification is finished, and the step 2 is returned; and when the power supply of the dehumidifier is disconnected, ending the control. And when the power supply of the dehumidifier is disconnected, ending the control.
Claims (4)
1. The utility model provides a dehumidifier for electrical equipment box, includes equipment shell, mechanical frame, circuit board storehouse and mechanical storehouse, its characterized in that: the equipment shell comprises a front shell formed by an upper panel, a lower panel, a left panel, a right panel, a front panel, a rear shell cover and a closed cube, wherein the front shell and the rear shell cover are matched to form the closed cube; the position of the circuit board bin of the front panel of the front shell of the equipment shell is provided with a rectangular frame for placing an input display module panel, and a wiring hole and a heat dissipation hole are respectively formed in the left panel and the right panel; round holes are formed in the front panel mechanical bin of the front shell of the equipment shell, air outlets are formed in the left panel and the right panel, and round holes are formed in the lower panel;
the mechanical bin is formed by mounting mechanical parts and an equipment air duct by using a mechanical frame; the mechanical parts in the mechanical bin comprise a fan (1), a fan cover (2), a large radiating fin (3), a refrigerating fin (4), a small radiating fin (5) and a water tank (6); the fan cover (2) comprises an iron net (2-1) and a fan fixing frame (2-2); the iron net (2-1) is fixed at a round hole position of a front shell front panel of the equipment shell; the fan fixing frame (2-2) is fixed inside a round hole of a front shell front panel of the equipment shell; radiating fins in the transverse direction are uniformly distributed on one plane of the main body of the large radiating fin (3), two small circular grooves are formed in the upper surface of the fin at the bottommost layer and the two sides of the lower surface of the fin at the topmost layer, the diameter of each small circular groove is smaller than the thickness of the base, and a groove is formed in the middle of the upper portion of the main body of the large radiating fin (3); the middle part and the bottom of the main body of the large radiating fin (3) are respectively provided with a connecting hole for installing and fixing the small radiating fin (5) and the water tank (6);
radiating fins in the longitudinal direction are uniformly distributed on one plane of the small radiating fin (5) main body, the edges of the two longitudinal sides are respectively provided with a protruding end part, and the end parts are respectively provided with a connecting hole; the transverse width of the small radiating fin (5) main body is smaller than the groove length of the water groove (6), and the fin width of the small radiating fin (5) is smaller than the groove width of the water groove (6);
the plane of the large radiating fin (3) without radiating fins and the plane of the small radiating fin (5) without radiating fins are oppositely arranged, the connection fixing device is utilized to penetrate through the corresponding connecting hole for installation, the refrigerating sheet (4) is arranged in the middle, the hot surface of the refrigerating sheet (4) is opposite to the plane of the large radiating fin (3), and the cold surface of the refrigerating sheet (4) is opposite to the plane of the small radiating fin (3); the length and the width of the refrigeration sheet (4) are respectively smaller than those of the small radiating fins (5); the upper end of the small radiating fin (5) is flush with the bottom end of the groove of the large radiating fin (3); the water tank (6) is tightly installed at the bottom of the main body of the large radiating fin (3) by using a connecting and fixing device, and the lower end of the small radiating fin (5) is flush with the notch plane of the water tank (6); the refrigerating fins (4) and the small radiating fins (5) are arranged in parallel in a space in the direction vertical to the plane of the notch of the water tank (6); the fan (1) is arranged on a plane of the large radiating fin (3) with radiating fins, and a matched fan cover (2) is arranged in the air inlet direction of the fan (1); the size of the fan cover (2) is the same as that of the large radiating fins (3);
the upper end of the water tank (6) is provided with an open water collecting opening, the lower end is provided with a cylindrical water outlet, and the middle part is inclined and gathered towards the center of the bottom; the water outlet passes through a round hole on the lower panel of the front shell of the equipment shell; and a water outlet at the lower end of the water tank (6) protrudes out of the lower panel of the front shell of the dehumidifier equipment shell, and the water outlet discharges condensed water out of the electrified box cabinet through a connecting water pipe.
2. The dehumidifier of claim 1, wherein: the air duct of the dehumidifier consists of an air inlet, an air duct and an air outlet; the air inlet consists of a fan cover (2) and a round hole of a front panel of a shell of the dehumidifier device; the air channel consists of a fan (1), a large radiating fin (3), a groove at the upper end of the large radiating fin (3) and a small radiating fin (5); the air outlet comprises a hot-surface air outlet of the refrigerating sheet (4) and a cold-surface air outlet of the refrigerating sheet (4); the hot side air outlet of the refrigerating plate (4) is a rectangular hole on the left side and the right side of the shell equipment structure corresponding to the two sides of the transverse direction of the large radiating plate (3), and the cold side air outlet of the refrigerating plate (4) is a rectangular hole on the left side and the right side of the shell equipment structure corresponding to the two sides of the transverse direction of the small radiating plate (5).
3. The dehumidifier of claim 1, wherein: the shell of the dehumidifier is a cube, and the size of the shell is as follows: the height is 120 mm-200 mm, the width is 80 mm-130 mm, and the thickness is 40 mm-60 mm.
4. The automatic dehumidification method of the dehumidifier applied to the electrical equipment box body, based on claim 1, is characterized in that: the hardware circuit mainly comprises a temperature and humidity sensor, an internal refrigeration piece cold surface and hot surface temperature monitoring sensor, a microprocessor control unit, a power supply control unit, an input display module and a response alarm module; the hardware circuit is arranged in the circuit board bin by using a mechanical frame;
the input display module comprises an LED indicator light, a nixie tube and a key;
the response alarm module comprises a buzzer and a communication transceiver;
the power supply control unit comprises a 12V power supply module, a 5V power supply module, a main board power supply module, a refrigeration piece power supply, a fan power supply, a data/control port connector and an external connector;
the mainboard power supply module is connected with a power supply end of the microprocessor through a wire; the data interface of the temperature and humidity sensor is connected with the data interface of the microprocessor through a matched data line, the data interface of the internal sensor is connected with the data interface of the microprocessor through a matched data line, and signals received by the sensor are transmitted to the microprocessor for analysis and processing; the data/control port connector of the power control unit is communicated with the data/control port connector of the microprocessor through a matched wire, so that the signal bidirectional communication between the power control unit and the microprocessor control unit is realized, and the temperature and humidity data acquisition and the control of the fan power supply and the refrigeration sheet power supply are realized; the wireless communication transceiver is connected with a wireless communication interface of the microprocessor through a matched connector; the input end of the nixie tube is connected with the data output end of the microprocessor through a wire, the input end of the key is connected with the data input interface of the microprocessor through a wire, and the input ends of the LED indicator light and the buzzer are respectively connected with the control output end of the microprocessor to realize the one-way control of the microprocessor;
the automatic control flow of the dehumidifier is as follows;
1) The nixie tube alternately displays the temperature and humidity information of the current environment, and a user sets a humidity threshold value through a key and starts the nixie tube through a 'confirmation' button;
2) The temperature and humidity sensor detects the temperature and the humidity of the surrounding environment and transmits data to the microprocessor;
3) The microprocessor compares the detected humidity data with a set humidity threshold value for judgment; if the detected humidity data is smaller than the set humidity threshold value, returning to the step 2; if the detected humidity data is larger than the set humidity threshold value, jumping to the next step;
4) The microprocessor controls the fan power supply and the refrigeration sheet power supply in the power supply control module to be started through the data/control interface; the dehumidifier starts to dehumidify;
5) When the microprocessor detects that the environmental humidity value is lower than the humidity threshold value set by the user, the dehumidification is finished, and the step 2 is returned; and when the power supply of the dehumidifier is disconnected, ending the control.
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| CN107425597A (en) * | 2017-09-07 | 2017-12-01 | 苏州市龙源电力科技股份有限公司 | A kind of rack ups power case |
| CN108055799A (en) * | 2017-12-21 | 2018-05-18 | 上海航天科工电器研究院有限公司 | A kind of cabinet for carrying dehumidifying and sensor monitoring |
| CN110416895B (en) * | 2019-08-20 | 2023-08-29 | 国家电网有限公司 | Intelligent moisture removal box for secondary circuit of GIS equipment of transformer substation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204927843U (en) * | 2015-08-26 | 2015-12-30 | 广西鑫百纳电气有限公司 | Electricity cabinet dehumidifier |
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| JP2006075697A (en) * | 2004-09-08 | 2006-03-23 | As One Corp | Dehumidifier and control method therefor |
| CN202817548U (en) * | 2012-08-09 | 2013-03-20 | 常州市盈能电气有限公司 | Dewatering-type electric cabinet dehumidifier used for terminal box |
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