CN218586653U

CN218586653U - Protective heating device of low-temperature power distribution cabinet

Info

Publication number: CN218586653U
Application number: CN202222953163.4U
Authority: CN
Inventors: 方坚平
Original assignee: World Cabinet Electrical Equipment Suzhou Co ltd
Current assignee: World Cabinet Electrical Equipment Suzhou Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-07
Anticipated expiration: 2032-11-07

Abstract

The utility model relates to a switch board field, specifically be a protective heating device of low temperature switch board, including base and switch board body, be provided with ventilation heating element in the base, switch board body includes inner shell and shell body, form between inner shell and the shell body and separate the chamber, install the evaporation heating element in separating the chamber; the utility model adopts the direct evaporation mode to the water drops on the inner wall of the distribution cabinet, shortens the heat transfer path, thereby improving the evaporation efficiency; through set up heating device in the base and realize that interior casing leads to the hot-blast hydrofuge through first ventilation valve and ventilation assembly, make interior casing and the public space of distributor and the direct and air heat exchange's that separates the chamber of shell body, both can the pertinence heat alone dehumidification, reduce the energy consumption when improving dehumidification efficiency.

Description

Protective heating device of low-temperature power distribution cabinet

Technical Field

The utility model relates to a switch board technical field specifically is a protective heating device of low temperature switch board.

Background

The switch board of working under low temperature environment often can see the cabinet top inner wall and condense when regularly opening the maintenance and have a lot of small drops, because the humid air that the big lead to the fact of the difference in temperature round the clock condenses at the switch board inner wall, can directly pound on the wiring of distributor when agglutinating great, can shorten the life of distributor. Therefore, the power distribution cabinet for the low-temperature environment in the prior art can be provided with an automatic dehumidifier in the cabinet, or a base capable of heating is installed at the bottom of the power distribution cabinet, so that the temperature and the humidity of the air in the power distribution cabinet are increased.

If chinese patent CN215579956U a controllable temperature dehumidification switch board for low temperature humid area, including switch board and base, the switch board bottom is connected with the base, the wire net is installed through the bolt in the base top, the wire net below is equipped with heating device, the inside back wall of switch board is equipped with dehydrating unit, heating device is including heating pipe, mount pad and hot-blast follower, dehydrating unit is including air intake, dehumidification pipeline, semiconductor refrigerator, aqueduct, outlet and air outlet, can let the switch board under low temperature humid environment through heating device and dehydrating unit, avoids because of the negative effects of temperature and humidity for bringing to guarantee the steady operation of switch board internal plant.

The device also has the following disadvantages: because heating device and dehydrating unit can not infinitely continue to work, the switch board inner wall still can condense the drop of water during intermittent operation during the interval, and the device is mainly evaporated the drop of water of cabinet wall through heating device and is discharged this moment, and because there is heat dissipation, this mode needs longer operating time to make evaporation efficiency not high enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protective heating device of low temperature switch board to solve among the prior art through semiconductor refrigeration and hot-blast dehumidification's mode, owing to there is heat dissipation, lead to the not high problem of switch board dehumidification efficiency inadequately.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a protective heating device of low temperature switch board, includes base and switch board body, be provided with ventilation heating assembly in the base, the switch board body includes interior casing and shell body, form between interior casing and the shell body and separate the chamber, separate the intracavity and install the evaporation heating assembly, the inner chamber of interior casing is installed and is supplied the fixed mounting panel of distributor, the ventilation assembly who supplies to separate the chamber intercommunication is installed to the bottom of interior casing, the fan is installed to one side of shell body, the one end and the ventilation heating assembly intercommunication of fan, the air outlet groove is installed to the opposite side of shell body, one side of switch board body articulates there is the cabinet door.

Preferably, the ventilation heating subassembly includes the air intake, fan and air intake intercommunication, the inner chamber of base is fixed with the moisture absorption cotton and the heater strip that ventilates, the moisture absorption cotton is located between heater strip and the air intake ventilates, the ventilation groove that supplies the air intake and separate the chamber intercommunication is seted up to the bottom of shell body.

Preferably, the evaporation heating subassembly is including going out tuber pipe and evaporation heater strip, the one end that goes out the tuber pipe communicates with the inner chamber of interior casing, the other end that goes out the tuber pipe communicates with the outside of shell body, just the first ventilation valve by solenoid valve control is installed to the other end that goes out the tuber pipe, the both ends in ventilation groove are provided with the second ventilation valve that has solenoid valve control, the inner wall fixed connection of evaporation heater strip and shell body.

Preferably, the evaporation heating wire is provided with a plurality of, a plurality of the evaporation heating wire is fixed respectively in the both sides and the top of interior casing.

Preferably, the inner cavities of the separation cavity and the inner shell are provided with temperature and humidity sensors, the temperature and humidity sensors are fixedly connected with the outer wall and the inner wall of the inner shell respectively, and the temperature and humidity sensors are electrically connected with the ventilation heating assembly and the evaporation heating assembly respectively.

Preferably, the ventilation assembly comprises a semicircular through groove, the through groove is formed in the bottom of the inner shell, a baffle is rotatably connected to the bottom of the inner shell, a connecting plate is fixed to one side of the mounting plate, and a rotating motor for driving the baffle to rotate is mounted on the upper surface of the connecting plate.

Preferably, the mounting panel is located the middle part of interior casing, one side of mounting panel is fixed with the tripod through the screw, the tripod passes through the inner wall fixed connection of screw with interior casing, the middle part of mounting panel is provided with reinforcing bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up the switch board into two-layer, set up to separate the chamber in the middle of, and set up the evaporation heater strip at the inner wall that separates the chamber directly, adopt the mode of direct evaporation to the drop of water of switch board inner wall, shorten the heat transfer way, thereby improve evaporation efficiency; through set up heating device in the base and realize that interior casing leads to the hot-blast hydrofuge through first ventilation valve and ventilation assembly, make interior casing and the public space of distributor and the direct and air heat exchange's that separates the chamber of shell body, both can the pertinence heat alone dehumidification, reduce the energy consumption when improving dehumidification efficiency.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is a schematic structural view of the evaporative heating assembly and the ventilation heating assembly of the present invention;

fig. 3 is a schematic view of the mounting structure of the mounting plate of the present invention.

In the figure: 1. a base; 2. a power distribution cabinet body; 4. an inner housing; 5. an outer housing; 6. a compartment; 8. mounting a plate; 10. a fan; 11. an air outlet groove; 12. a cabinet door; 301. an air inlet; 302. moisture absorption cotton; 303. a ventilation heating wire; 304. a ventilation slot; 701. an air outlet pipe; 702. evaporating the heating wire; 901. a first vent valve; 902. a temperature and humidity sensor; 903. a through groove; 904. a baffle plate; 905. a connecting plate; 906. a rotation motor; 13. a tripod; 14. reinforcing the bolt; 15. and a second vent valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a protective heating device of low temperature switch board, including base 1 and switch board body 2, be provided with ventilation heating assembly in the base 1, switch board body 2 includes interior casing 4 and shell body 5, it separates chamber 6 to form between interior casing 4 and the shell body 5, separate and install the evaporation heating assembly in chamber 6, the mounting panel 8 that supplies the distributor to fix is installed to the inner chamber of interior casing 4, the ventilation assembly who supplies to separate chamber 6 intercommunication is installed to interior casing 4's bottom, fan 10 is installed to one side of shell body 5, the one end and the ventilation heating assembly intercommunication of fan 10, air outlet duct 11 is installed to shell body 5's opposite side, one side of switch board body 2 articulates there is cabinet door 12.

The ventilation heating component comprises an air inlet 301, the fan 10 is communicated with the air inlet 301, the inner cavity of the base 1 is fixed with moisture absorption cotton 302 and a ventilation heating wire 303, the moisture absorption cotton 302 is positioned between the ventilation heating wire 303 and the air inlet 301, and the bottom of the outer shell 5 is provided with a ventilation groove 304 for communicating the air inlet 301 with the separation cavity 6.

Through setting up the cotton 302 of absorbing moisture, make fan 10 with the outside air suction in the base 1 and with the ventilation heating wire 303 before the contact, preferentially contact the cotton 302 of absorbing moisture, the cotton 302 adoption of absorbing moisture ventilates cottonly, outside air is too moist, when mixing with liquid like the rain weather is internal, can be to the water coarse filtration.

The evaporation heating component comprises an air outlet pipe 701 and an evaporation heating wire 702, one end of the air outlet pipe 701 is communicated with the inner cavity of the inner shell 4, the other end of the air outlet pipe 701 is communicated with the outside of the outer shell 5, a first ventilation valve 901 controlled by an electromagnetic valve is installed at the other end of the air outlet pipe 701, and the evaporation heating wire 702 is fixedly connected with the inner wall of the outer shell 5.

Through setting up first ventilation valve 901 and play tuber pipe 701, make 4 intracavitys in the interior casing realize independently dehumidifying, cross the more chamber 6 that separates of drop of water, make the air rapid draing in the 4 spaces in the interior casing.

The evaporation heating wires 702 are provided with a plurality of evaporation heating wires 702, and the plurality of evaporation heating wires 702 are respectively fixed on the two sides and the top of the inner shell 4. The evaporation heating wire 702 and the ventilation heating wire 303 are electrically connected and controlled, so that the evaporation heating wire and the ventilation heating wire are conveniently opened in linkage control with the temperature and humidity sensor 902.

Separate chamber 6 and the inner chamber of interior casing 4 and all be provided with temperature and humidity sensor 902, two temperature and humidity sensor 902 respectively with the outer wall and the inner wall fixed connection of interior casing 4, temperature and humidity sensor 902 and the equal electric connection of ventilation heating element and evaporation heating element. Different thresholds are set for the two temperature and humidity sensors 902, so that the inner cavities of the compartment 6 and the inner shell 4 can work independently at different temperatures and humidities.

The ventilation assembly comprises a semicircular through groove 903, the through groove 903 is formed in the bottom of the inner shell 4, a baffle 904 is rotatably connected to the bottom of the inner shell 4, a connecting plate 905 is fixed to one side of the mounting plate 8, and a rotating motor 906 for driving the baffle 904 to rotate is mounted on the upper surface of the connecting plate 905.

When the rotary motor 906 is activated, the flap 904 rotates to open the through channel 903, and the inner cavity of the inner housing 4 is communicated with the ventilating and heating assembly.

The mounting plate 8 is positioned in the middle of the inner shell 4, a tripod 13 is fixed on one side of the mounting plate 8 through a screw, the tripod 13 is fixedly connected with the inner wall of the inner shell 4 through a screw, a reinforcing bolt 14 is arranged in the middle of the mounting plate 8, and nuts are connected to two ends of the reinforcing bolt 14 to tighten the mounting plate 8 and the inner shell 4;

when the water heater is used, when the temperature difference between day and night is large, water drops are preferentially and gradually condensed on the evaporation heating wire 702 which does not work on the inner wall of the outer shell 5, only small water drops are condensed on the inner wall of the inner shell 4, at the moment, the rotating motor 906 and the ventilation heating wire 303 are controlled and controlled by the electromagnetic valve, the second ventilation valve is closed, the first ventilation valve is opened, and hot air enters the inner shell 4, evaporates small water drops and is discharged through the air outlet pipe 701; when water drops on the inner wall of the outer shell 5 are required to be evaporated, the evaporation heating wires 702 are enabled to work through the threshold setting of the temperature and humidity sensor 902, the water drops on the surface are directly evaporated, and the heat transfer path can be shortened through the method, so that the evaporation efficiency is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a protective heating device of low temperature switch board which characterized in that: including base (1) and switch board body (2), be provided with ventilation heating element in base (1), switch board body (2) are including interior casing (4) and shell body (5), form between interior casing (4) and shell body (5) and separate chamber (6), install evaporation heating element in separating chamber (6), the inner chamber of interior casing (4) is installed and is supplied mounting panel (8) that the distributor is fixed, the ventilation unit who supplies to separate chamber (6) intercommunication is installed to the bottom of interior casing (4), fan (10) are installed to one side of shell body (5), the one end and the ventilation heating element intercommunication of fan (10), air outlet groove (11) are installed to the opposite side of shell body (5), one side of switch board body (2) articulates there is cabinet door (12).

2. The protective heating device of a cryogenic power distribution cabinet according to claim 1, characterized in that: the ventilation heating assembly comprises an air inlet (301), a fan (10) is communicated with the air inlet (301), the inner cavity of the base (1) is fixed with moisture absorption cotton (302) and a ventilation heating wire (303), the moisture absorption cotton (302) is located between the ventilation heating wire (303) and the air inlet (301), and a ventilation groove (304) communicated with a separation cavity (6) is formed in the bottom of the outer shell (5).

3. The protective heating device of a cryogenic power distribution cabinet according to claim 2, characterized in that: evaporation heating element is including going out tuber pipe (701) and evaporation heater strip (702), the one end that goes out tuber pipe (701) communicates with the inner chamber of interior casing (4), the other end that goes out tuber pipe (701) communicates with the outside of shell body (5), just the first ventilation valve (901) by solenoid valve control are installed to the other end that goes out tuber pipe (701), the both ends in ventilation groove (304) are provided with second ventilation valve (15) that have solenoid valve control, evaporation heater strip (702) and the inner wall fixed connection of shell body (5).

4. The protective heating device of a cryogenic power distribution cabinet according to claim 3, characterized in that: the evaporation heating wires (702) are provided with a plurality of evaporation heating wires (702) which are respectively fixed on the two sides and the top of the inner shell (4).

5. The protective heating device of a cryogenic power distribution cabinet according to claim 4, characterized in that: the inner chamber that separates chamber (6) and interior casing (4) all is provided with temperature and humidity sensor (902), two temperature and humidity sensor (902) respectively with the outer wall and the inner wall fixed connection of interior casing (4), temperature and humidity sensor (902) and ventilation heating element and the equal electric connection of evaporation heating element.

6. The protective heating device of a cryogenic power distribution cabinet according to claim 5, characterized in that: the ventilation assembly comprises a semicircular through groove (903), the bottom of the inner shell (4) is arranged at the through groove (903), the bottom of the inner shell (4) is connected with a baffle (904) in a rotating mode, a connecting plate (905) is fixed on one side of the mounting plate (8), and a rotating motor (906) for driving the baffle (904) to rotate is arranged on the upper surface of the connecting plate (905).

7. The protective heating device of a cryogenic power distribution cabinet according to claim 6, characterized in that: the mounting panel (8) are located the middle part of interior casing (4), one side of mounting panel (8) is fixed with tripod (13) through the screw, inner wall fixed connection of screw and interior casing (4) is passed through in tripod (13), the middle part of mounting panel (8) is provided with reinforcing bolt (14).