CN110519945B - An electrical cabinet and its dehumidification device - Google Patents

Abstract

The invention relates to an electrical cabinet and a dehumidifying device thereof. The utility model provides an electrical cabinet includes the cabinet body, still includes the dehydrating unit who sets up on the cabinet body, dehydrating unit include the casing and with the ventilative structure of cabinet body intercommunication, be equipped with the absorbent that is used for absorbing the internal moisture of cabinet in the casing, the casing be for being used for absorbing solar energy the dehydrating unit still including being used for the heating device of casing heating, is equipped with the outside gas vent of water supply steam exhaust casing on the casing. This dehydrating unit of regulator cubicle includes the casing and with the ventilative structure of cabinet body intercommunication, be equipped with the moisture absorbent in the casing, the moisture absorbent can absorb the internal moisture of regulator cubicle cabinet through ventilative structure, the casing still includes the heating device who is used for giving the casing heating for casing or dehydrating unit for being used for absorbing solar energy simultaneously, the casing is dried to the moisture absorbent after receiving the heat, moisture in the moisture absorbent passes through the casing of gas vent discharge dehydrating unit, do not need often to change the moisture absorbent, save the cost.

Description

An electrical cabinet and its dehumidification device

technical field

The invention relates to an electrical cabinet and a dehumidification device thereof.

Background technique

There are many electrical cabinets in the fields of electric power and communication. The electronic components configured in the electrical cabinet have high requirements on the dry and humidity environment of the air in the cabinet. In the spring and autumn seasons, due to the high ambient humidity and the large temperature difference between day and night, water vapor is easily accumulated inside the electrical cabinet and condensation occurs. When the condensation is serious, it may even cause a partial short circuit, which seriously affects the normal operation of the panel cabinet.

The Chinese patent with the announcement number of CN206349634U and the announcement date of 2017.07.21 discloses a new type of power distribution cabinet. The new power distribution cabinet includes a cabinet body and a top cover arranged above the cabinet body. It extends to the outside of the cabinet to form a rain shield. There is a monitoring device under the top cover. The monitoring device is equipped with a temperature sensor, a humidity sensor, an electric fan and an alarm. The side wall inside the cabinet is provided with a drying device. The drying device includes The desiccant box with the top opening and the desiccant housed in the desiccant box, the bottom of the desiccant box is a mesh structure and is connected with a guide pipe, the outlet end of the guide pipe extends to the outside of the cabinet through the side wall. The cabinet of the new power distribution cabinet is equipped with a drying device, which can absorb the moisture in the cabinet and remove the cabinet, which can effectively dehumidify, and the monitoring system turns on the fan when the humidity in the cabinet reaches the set humidity, and the dehumidification effect is better.

However, the above-mentioned new power distribution cabinet needs to add desiccant regularly, and needs a humidity sensor for detecting the humidity in the cabinet and a power source for driving an electric fan, and the cost is relatively high.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an electrical cabinet, which solves the problem that a desiccant needs to be added regularly in the production of new power distribution cabinets in the prior art; the purpose of the present invention is also to provide a dehumidification device for an electrical cabinet.

To achieve the above purpose, the technical scheme of the electrical cabinet of the present invention is:

Technical solution 1: An electrical cabinet includes a cabinet body, and also includes a dehumidification device arranged on the cabinet body, the dehumidification device includes a shell and a ventilation structure communicated with the cabinet body, and the shell is provided with a damper for absorbing moisture in the cabinet. Moisture absorbing agent, the casing is a casing for absorbing solar energy or the dehumidifying device further includes a heating device for heating the casing, and the casing is provided with an air outlet for water supply steam to be discharged outside the casing. The beneficial effects are as follows: the dehumidification device of the electrical cabinet comprises a casing and a ventilation structure communicated with the cabinet body, a moisture absorbent is arranged in the casing, and the moisture absorbing agent can absorb the moisture in the cabinet through the ventilation structure, while the casing is provided with a moisture absorbing agent. The shell or dehumidification device for absorbing solar energy also includes a heating device for heating the shell. After the shell collects heat, the moisture absorbing agent is dried, and the moisture in the moisture absorbing agent is discharged from the shell of the dehumidifying device through the exhaust port. body, do not need to replace the moisture absorbent frequently, saving costs.

Technical solution 2: On the basis of technical solution 1, the dehumidification device is arranged on the top of the cabinet, and the housing is provided with a protective structure for covering the exhaust port. The beneficial effect is that the dehumidification device is arranged on the top of the cabinet body, and the protective structure can prevent rainwater from entering the casing through the exhaust port and then entering the inside of the cabinet body in rainy days.

Technical solution 3: On the basis of technical solution 2, the protective structure is a rain cap inserted on the top of the housing, and an airflow channel is provided between the rain cap and the housing to form the exhaust port. The beneficial effects are: the arrangement of the structure can prevent rainwater from entering the casing without affecting the solar energy absorption of the casing, and an airflow channel is arranged between the rain cap and the casing to discharge water vapor.

Technical solution 4: On the basis of technical solution 3, the top of the housing is provided with a cylindrical protrusion, a circular opening is provided on the cylindrical protrusion, and the rain cap has a cross-shaped clamping portion inserted in the circular opening The clamping part is provided with a blocking part which is axially blocked and matched with the cylindrical protrusion, and the air flow channel is formed by the space between the cross-shaped clamping part and the cylindrical protrusion.

Technical solution 5: On the basis of technical solution 3 or 4, the rain cap and the housing are fixed by bonding. The beneficial effects are: the adhesive fixing is used without maintenance, and the utility model is simple and practical.

Technical solution 6: On the basis of any one of technical solutions 1 to 4, a receiving structure for preventing the moisture absorbing agent from falling into the cabinet is provided between the breathable structure and the moisture absorbing agent, and the receiving structure is provided with a receiving structure. There are pores for gas to pass through. The beneficial effect is that the receiving structure can prevent the moisture absorbing agent from falling into the cabinet and damaging the components in the cabinet.

Technical solution 7: On the basis of technical solution 6, the receiving structure is a filter screen through which moisture can pass.

Technical solution 8: On the basis of any one of technical solutions 1 to 4, the housing is a black plastic housing. The beneficial effects are: the black plastic shell is low in price, has a good heat collection effect, and can save costs.

Technical solution 9: On the basis of any one of technical solutions 1 to 4, the moisture absorbing agent is made of a polymer material. The beneficial effects are as follows: the moisture absorbing agent of the polymer material has a long service life and good stability.

Technical solution 10: On the basis of any one of technical solutions 1 to 4, the cabinet body is provided with installation holes for installing the dehumidification device, the ventilation structure is an installation cover provided with ventilation holes, and the installation cover is adapted to be installed on the on the mounting hole.

Technical solution 11: On the basis of technical solution 10, the housing and the installation cover are fixed by bonding. The beneficial effects are: the adhesive fixing is used without maintenance, and the utility model is simple and practical.

Technical solution 12: On the basis of any one of technical solutions 1 to 4, the shape of the casing is hemispherical.

The technical scheme of the dehumidification device of the electrical cabinet of the present invention is:

Technical solution 1: The dehumidification device of the electrical cabinet includes a shell and a ventilation structure communicating with the cabinet. The shell is provided with a moisture absorbent for absorbing moisture in the cabinet, and the shell is a shell for absorbing solar energy or a The dehumidifying device further includes a heating device for heating the casing, and the casing is provided with an air outlet for the water supply steam to be discharged outside the casing.

Technical solution 2: On the basis of technical solution 1, the dehumidification device is arranged on the top of the cabinet, and the housing is provided with a protective structure for covering the exhaust port.

Technical solution 3: On the basis of technical solution 2, the protective structure is a rain cap inserted on the top of the housing, and an airflow channel is provided between the rain cap and the housing to form the exhaust port.

Technical solution 4: On the basis of technical solution 3, the top of the housing is provided with a cylindrical protrusion, a circular opening is provided on the cylindrical protrusion, and the rain cap has a cross-shaped clamping portion inserted in the circular opening The clamping part is provided with a blocking part which is axially blocked and matched with the cylindrical protrusion, and the air flow channel is formed by the space between the cross-shaped clamping part and the cylindrical protrusion.

Technical solution 5: On the basis of technical solution 3 or 4, the rain cap and the housing are fixed by bonding.

Technical solution 6: On the basis of any one of technical solutions 1 to 4, a receiving structure for preventing the moisture absorbing agent from falling into the cabinet is provided between the breathable structure and the moisture absorbing agent, and the receiving structure is provided with a receiving structure. There are pores for gas to pass through.

Technical solution 7: On the basis of technical solution 6, the receiving structure is a filter screen through which moisture can pass.

Technical solution 8: On the basis of any one of technical solutions 1 to 4, the housing is a black plastic housing. The beneficial effects are: the black plastic shell is low in price, has a good heat collection effect, and can save costs.

Technical solution 9: On the basis of any one of technical solutions 1 to 4, the moisture absorbing agent is made of a polymer material.

Technical solution 10: On the basis of any one of technical solutions 1 to 4, the cabinet body is provided with installation holes for installing the dehumidification device, the ventilation structure is an installation cover provided with ventilation holes, and the installation cover is adapted to be installed on the on the mounting hole.

Technical solution 11: On the basis of technical solution 10, the housing and the installation cover are fixed by bonding.

Technical solution 12: On the basis of any one of technical solutions 1 to 4, the shape of the casing is hemispherical.

Description of drawings

Fig. 1 is the structural representation that the dehumidification device of the present invention is assembled on the electrical distribution cabinet;

Fig. 2 is the front view of the installation cover of the dehumidification device of the present invention;

3 is a cross-sectional view along the line A-A of the mounting cover shown in FIG. 2;

FIG. 4 is a top view of the mounting cover shown in FIG. 2;

5 is a front view of the rain cap on the housing of the dehumidification device of the present invention;

6 is a cross-sectional view along the line B-B of the rain cap shown in FIG. 5;

FIG. 7 is a bottom view of the rain cap shown in FIG. 5 .

Description of reference numerals: 1. Housing; 11. Columnar protrusion; 2. Mounting cover; 21. Ventilation hole; 22. Through hole; 3. Rainproof cap; . Filter; 5. Moisture absorbent; 6. Cabinet; 61. Mounting holes.

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

Embodiment 1 of the electrical cabinet of the present invention, as shown in FIG. 1 to FIG. 7 , the electrical cabinet includes a cabinet body 6 and a dehumidification device arranged on the cabinet body 6 , and the dehumidification device includes a housing 1 and a ventilation device communicated with the cabinet body 6 . Structure, the dehumidification device is arranged on the top of the cabinet 6, between the breathable structure and the moisture absorbing agent 5 is provided with a receiving structure for preventing the moisture absorbing agent 5 from falling into the cabinet 6, the receiving structure is a filter screen 4, and the receiving structure is There is a through hole for gas to pass through, a moisture absorbing agent 5 for absorbing moisture is provided in the casing 1, the moisture absorbing agent 5 is a polymer material, and an exhaust port for dissipating water vapor is provided on the casing 1.

The top of the cabinet body 6 is provided with a mounting hole 61 for installing the dehumidification device. The ventilation structure is the mounting cover 2 provided with the ventilation hole 21. The ventilation hole 21 is circular or elongated. Fix, the installation cover 2 is adapted to be installed on the installation hole 61, the hole wall of the installation hole 61 is provided with screw holes, the installation cover 2 is provided with through holes 22 corresponding to the screw holes, and the cabinet body 6 of the electrical cabinet is connected with the screws through the screws. Fixed connection.

The shell 1 is a black plastic shell, the shape of the shell 1 is a hemisphere, the shell 1 is provided with a protective structure for preventing rainwater from entering the dehumidification device, and the top of the shell 1 is provided with a cylindrical protrusion 11, the cylindrical protrusion 11 is provided with a circular opening, the rainproof cap 3 is inserted in the circular opening, and the rainproof cap 3 has a clamping part 31 inserted in the circular opening, the clamping part 31 is a cross-shaped structure, and the clamping part 31 is provided with a blocking portion 311 which is axially blocked and matched with the cylindrical protrusion 11. The space between the cross-shaped clamping portion 31 and the cylindrical protrusion 11 forms an air flow channel, and the rain cap 3 forms the protective structure, preventing The rain cap 3 and the casing 1 are fixed by bonding.

When the electrical cabinet of the present invention works outdoors, the top of the cabinet body 6 of the electrical cabinet is pre-machined with installation holes, the installation cover 2 with the ventilation holes 21 is fixed on the pre-machined installation holes by screws, and a filter is placed on the installation cover 2. The net 4, the installation cover 2 is glued and fixed on the shell 1, the shell 1 is provided with a polymer material moisture absorbent 5, and the rainproof cap 3 is inserted into the opening of the cylindrical protrusion 11 of the shell to prevent rain. The cap 3 is fixed on the cylindrical protrusion 11 of the casing by bonding. Since the blocking portion 311 of the latching portion 31 of the rainproof cap 3 and the cylindrical protrusion 11 axially block and cooperate, the rainproof cap 3 and the casing 1 are connected. Air flow channels are formed between them. At night, when the humidity in the cabinet body 6 of the electrical cabinet is high, the moisture enters the dehumidification device through the ventilation holes 21, and the moisture absorbent 5 in the shell 1 absorbs the moisture in the electrical cabinet, reduces the humidity of the electrical cabinet, and avoids Condensation occurs in the cabinet 6 due to the decrease in temperature at night; when there is sunlight during the day, the black plastic shell absorbs solar energy, the temperature increases, and the internal moisture absorbing agent 5 is heated, and the moisture absorbed by the moisture absorbing agent 5 at night becomes water vapor , the water vapor is discharged into the atmosphere through the airflow channel between the cross-shaped snap portion 31 of the rain cap 3 and the cylindrical protrusion 11; when it rains, due to the covering function of the rain cap 3, the rainwater cannot enter the interior of the dehumidifier. .

The electrical cabinet of the present invention does not need to consume energy, the shell 1 of the dehumidifier is used to absorb solar energy, the shell 1 collects heat, evaporates the moisture in the moisture absorbing agent 5, and discharges the shell 1 of the dehumidification device, and there is no need to replace the moisture absorbing agent 5 regularly. It can achieve the purpose of automatic dehumidification of electrical cabinets.

Embodiment 2 of the electrical cabinet of the present invention differs from Embodiment 1 only in that no receiving structure is provided between the breathable structure and the moisture absorbing agent 5, and the automatic dehumidification function of the electrical cabinet can also be realized, but the moisture absorbing agent 5 falling into the cabinet 6 may damage the components in the cabinet 6 , preferably a receiving structure is provided between the breathable structure and the moisture absorbing agent 5 .

The third embodiment of the electrical cabinet of the present invention is different from the first embodiment only in that the dehumidification device is arranged on the side wall of the cabinet body 6, and the shell 1 is not provided with a protective structure. The port is a ventilation port provided on the side wall of the housing 1 .

Embodiment 4 of the electrical cabinet of the present invention differs from Embodiment 1 only in that the receiving structure is a grid structure.

Embodiment 5 of the electrical cabinet of the present invention is different from Embodiment 1 only in that the installation cover 2 is directly connected to the top wall of the cabinet body 6 through screws, but in rainy days, rainwater may penetrate into the cabinet body 6 through the connection. Inside.

Embodiment 6 of the electrical cabinet of the present invention differs from Embodiment 1 only in that the housing 1 is made of solar heat collecting material.

Embodiment 7 of the electrical cabinet of the present invention differs from Embodiment 1 only in that the exhaust ports are uniformly distributed ventilation holes on the housing 1, and a transparent protective shield that completely covers the housing is provided on the top of the cabinet 6 plate.

In other embodiments, when the electrical cabinet is indoors and cannot be exposed to the sun, a heating device for heating the housing may be provided in the dehumidification device, so that the indoor electrical cabinet can be dehumidified.

In other embodiments, the moisture absorbing agent is a moisture absorbing agent of other materials, for example, a moisture absorbing agent of a silica gel material.

In the embodiment of the dehumidification device of the electrical cabinet of the present invention, the dehumidification device of the electrical cabinet has the same structure as the dehumidification device in any embodiment of the electrical cabinet of the present invention, and the description is not repeated.

Claims (18)

1. The utility model provides an electrical cabinet, includes the cabinet body, its characterized in that: the solar energy-saving dehumidifying cabinet further comprises a dehumidifying device arranged on the cabinet body, the dehumidifying device comprises a shell and a ventilating structure communicated with the cabinet body, a moisture absorbent for absorbing moisture in the cabinet body is arranged in the shell, the shell is a shell for absorbing solar energy or a heating device for heating the shell, an exhaust port for discharging water vapor out of the shell is arranged on the shell, the dehumidifying device is arranged at the top of the cabinet body, a protective structure for covering the exhaust port is arranged on the shell, the protective structure is a rain-proof cap inserted at the top of the shell, an air flow channel is arranged between the rain-proof cap and the shell to form the exhaust port, a columnar bulge is arranged at the top of the shell, a circular opening is arranged on the columnar bulge, the rain-proof cap is provided with a cross-shaped clamping portion inserted in the circular opening, and a blocking portion axially matched with the columnar bulge is arranged on the, the airflow channel is formed by a space between the cross-shaped clamping part and the columnar bulge.

2. The electrical cabinet of claim 1, wherein: the rain hat and the shell are fixed through bonding.

3. The electrical cabinet of claim 1, wherein: the breathable structure with be equipped with between the moisture absorbent and be used for preventing that the moisture absorbent from falling into the internal structure of accepting of cabinet, accept to be equipped with the gas pocket that supplies gas to pass through on the structure.

4. The electrical cabinet of claim 3, wherein: the receiving structure is a filter screen through which moisture can pass.

5. The electrical cabinet of claim 1, wherein: the shell is a black plastic shell.

6. The electrical cabinet of claim 1, wherein: the moisture absorbent is made of a high polymer material.

7. The electrical cabinet of claim 1, wherein: the cabinet body is provided with a mounting hole for mounting the dehumidifying device, the ventilating structure is a mounting cover provided with a vent hole, and the mounting cover is mounted on the mounting hole in an adaptive manner.

8. The electrical cabinet of claim 7, wherein: the shell and the mounting cover are fixed through bonding.

9. The electrical cabinet of claim 1, wherein: the shell is hemispherical.

10. Dehydrating unit of regulator cubicle, its characterized in that: comprises a shell and a ventilation structure communicated with a cabinet body, wherein the shell is internally provided with a moisture absorbent for absorbing moisture in the cabinet body, the shell is used for absorbing solar energy or the dehumidifying device also comprises a heating device used for heating the shell, an exhaust port for discharging water vapor outside the shell is arranged on the shell, the dehumidification device is arranged at the top of the cabinet body, the shell is provided with a protective structure for covering the exhaust port, the protective structure is a rain-proof cap inserted at the top of the shell, an air flow channel is arranged between the rain-proof cap and the shell to form the exhaust port, the rain-proof hat is characterized in that a columnar bulge is arranged at the top of the shell, a circular opening is formed in the columnar bulge, the rain-proof hat is provided with a cross-shaped clamping portion inserted into the circular opening, a blocking portion matched with the columnar bulge in an axial blocking mode is arranged on the clamping portion, and the airflow channel is formed by a space between the cross-shaped clamping portion and the columnar bulge.

11. The dehumidification device for an electrical cabinet according to claim 10, wherein: the rain hat and the shell are fixed through bonding.

12. The dehumidification device for an electrical cabinet according to claim 10, wherein: the breathable structure with be equipped with between the moisture absorbent and be used for preventing that the moisture absorbent from falling into the internal structure of accepting of cabinet, accept to be equipped with the gas pocket that supplies gas to pass through on the structure.

13. The dehumidification device for an electrical cabinet according to claim 12, wherein: the receiving structure is a filter screen through which moisture can pass.

14. The dehumidification device for an electrical cabinet according to claim 10, wherein: the moisture absorbent is made of a high polymer material.

15. The dehumidification device for an electrical cabinet according to claim 10, wherein: the shell is a black plastic shell.

16. The dehumidification device for an electrical cabinet according to claim 10, wherein: the cabinet body is provided with a mounting hole for mounting the dehumidifying device, the ventilating structure is a mounting cover provided with a vent hole, and the mounting cover is mounted on the mounting hole in an adaptive manner.

17. The dehumidification device for an electrical cabinet according to claim 16, wherein: the shell and the mounting cover are fixed through bonding.

18. The dehumidification device for an electrical cabinet according to claim 10, wherein: the shell is hemispherical.

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