CN115764636A - Switch cabinet with insulation shielding structure and shielding method thereof - Google Patents

Abstract

The invention belongs to the technical field of switch cabinets, and discloses a switch cabinet with an insulation shielding structure, which comprises an equipment body; the heat dissipation mechanism is arranged on the outer surfaces of two sides of the equipment body, an accommodating port for accommodating the heat dissipation mechanism is formed in the equipment body, and the inside of the equipment body is communicated with the outside when the heat dissipation mechanism is in a heat dissipation state; the rain shield is fixedly connected with the equipment body and is positioned on the upper surface of the equipment body. According to the invention, the workpiece in the device does repeated up-and-down motion, airflow is generated on the upper surface of the second connecting block, the lower outside airflow enters the device through the closed rainproof shutter which is opened up and down, the airflow with higher internal temperature is lifted upwards and discharged through the air outlet, and the higher internal temperature is diffused, so that the device can be better radiated, and rainwater can be blocked in rainy days.

Description

Switch cabinet with insulation shielding structure and shielding method thereof

Technical Field

The invention belongs to the technical field of switch cabinets, and particularly relates to a switch cabinet with an insulation shielding structure and a shielding method thereof.

Background

The switch cabinet is electrical equipment, the types and the models of the switch cabinets on the market are different, but the working functions of the switch cabinet are consistent, the switch cabinet is used for opening and closing, controlling and protecting the electrical equipment in the process of power generation, power transmission, power distribution and electric energy conversion of a power system, in the specific using process, elements inside the switch cabinet can generate huge heat in the working process, the heat needs to be dissipated and given out in time, a common switch cabinet on the market is only provided with a plurality of holes on a cabinet body to dissipate heat, but the heat dissipation effect is not ideal, the switch cabinet can be used outdoors, the factors of heat dissipation holes can exist objectively in the outdoor using condition, the common switch cabinet is not provided with a rainproof structure, rainwater can enter the switch cabinet along with the switch cabinet in the rainy day, the damage condition of internal elements is caused, the service life of the switch cabinet is reduced, inconvenience is brought to people, and the switch cabinet with the insulation shielding structure and the shielding method are provided.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a switch cabinet with an insulation shielding structure and a shielding method thereof, wherein an internal workpiece moves up and down repeatedly, under the condition of the movement, the second connecting block generates airflow on the upper surface of the second connecting block, external lower airflow enters the equipment through the closed rainproof shutter which is opened up and down, the internal higher-temperature airflow is lifted upwards and discharged through the air outlet, so that the conversion of the internal airflow is completed, the internal higher temperature is diffused, the equipment can be better radiated, and rainwater can be blocked in rainy days.

In order to achieve the purpose, the invention provides the following technical scheme: a switch cabinet with an insulation shielding structure comprises an equipment body;

the heat dissipation mechanism is arranged on the outer surfaces of two sides of the equipment body, a containing opening for containing the heat dissipation mechanism is formed in the equipment body, and the inside of the equipment body is communicated with the outside when the heat dissipation mechanism is in a heat dissipation state;

the rain shield is fixedly connected with the equipment body and is positioned on the upper surface of the equipment body;

the air flow generating mechanism is fixedly connected with the equipment body and is positioned inside the equipment body.

Preferably, heat dissipation mechanism includes the second fixed block, the medial surface fixed connection who receives the mouth is put on second fixed block and the equipment body, the lower fixed surface of second fixed block is connected with the fixed plate, the rain-proof tripe of lower fixed surface fixedly connected with of fixed plate, the first connecting block of lower fixed surface fixedly connected with of rain-proof tripe, the outer fixed surface in both sides of first connecting block is connected with the slider, heat dissipation mechanism still includes first fixed block, the medial surface fixed connection who receives the mouth is put on first fixed block and the equipment body, the spout has been seted up to the medial surface of first fixed block, slider sliding connection is in the spout.

Preferably, the rainproof louver and the first fixed block move in a telescopic mode, the first connecting block is connected with the first fixed block in a sliding mode through the airflow generating mechanism, the fixed plate is fixedly connected with the first fixed block, and the second fixed block is fixedly connected with the first fixed block.

Preferably, the airflow generation mechanism comprises a second connecting block, the outer surfaces of the two sides of the second connecting block are fixedly connected with the inner side surfaces of the first connecting block respectively, the lower surface of the second connecting block is fixedly connected with a connecting rack block, the outer wall of the connecting rack block is meshed with a half gear, a transmission gear is fixedly connected with the circle center of the half gear, the outer wall of the transmission gear is meshed with a driving gear, the circle center of the driving gear is provided with a driving motor, the output end shaft of the driving motor is fixedly connected with the circle center of the driving gear, the half gear is two sets of in number and the transmission gear is completely equal to the transmission gear in structure, and the transmission gear is respectively meshed with the outer wall of the driving gear.

Preferably, the connecting rack block is fixedly connected with a tooth groove matched with a half gear, and when one group of the half gears is meshed with the connecting rack block, the other group of the half gears is not meshed with the outer wall of the connecting rack block.

Preferably, driving motor's lower fixed surface is connected with puts and accomodates the piece, put the inside fixed connection who accomodates piece and equipment body, put and accomodate fixedly connected with on the piece and be used for injecing the stopper of connecting rack piece position.

Preferably, the lower surface of the equipment body is fixedly connected with a damp-proof base, the outer side surface of the equipment body is rotatably connected with a starting cabinet door, and the upper surface of the equipment body is provided with a plurality of air outlets.

Preferably, the structure of the rain shield is arc-shaped, and the rain shield is positioned right above the air outlet.

A shielding method of a switch cabinet with an insulation shielding structure comprises the following steps:

s1: holding the holding rod, and opening the cabinet door;

s2: searching electromagnetic shielding equipment, setting a wave value to be shielded, pressing a start button, and enabling the electromagnetic shielding equipment to work;

s3: electromagnetic wave is emitted to interfere the external magnetic field and shield the magnetic field.

Preferably, the electromagnetic shielding operation state is an eddy current shielding.

Compared with the prior art, the invention has the following beneficial effects:

when the rain-proof shutter is rotated out of the connecting rack block, the other half gear rotates on the connecting rack block and drives the connecting rack block to move downwards, so that the second connecting block, the first connecting block and the rain-proof shutter move downwards repeatedly, under the action of the repeated up-and-down movement, the second connecting block generates airflow on the upper surface of the second connecting block, the external lower airflow enters the interior of the equipment through the rain-proof shutter which is opened up and down, the airflow with higher internal temperature is opened upwards, the rainwater is discharged through the air outlet which is opened up and down, the rainwater can be prevented from being discharged out of the equipment more efficiently, the rainwater can be prevented from being dissipated more efficiently in a heat dissipation day, and the rainwater can be prevented from being dissipated into the equipment more efficiently.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a portion of the present invention;

FIG. 3 is a schematic view of a heat dissipation mechanism according to the present invention;

FIG. 4 is an enlarged view of the first fixing block of the present invention;

FIG. 5 is a schematic view of the internal structure of the present invention;

fig. 6 is a front profile view of the airflow generation mechanism of the present invention.

In the figure: 1. a rain shield; 2. a heat dissipation mechanism; 3. an apparatus body; 4. an airflow generating mechanism; 21. a first fixed block; 22. a chute; 23. a fixing plate; 24. a slider; 25. a first connection block; 26. a second fixed block; 27. rain-proof shutter; 31. a moisture-proof base; 32. starting the cabinet door; 33. an air outlet; 41. a second connecting block; 42. connecting the rack blocks; 43. a half gear; 44. a transmission gear; 45. a drive gear; 46. the motor is driven.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, the present invention provides a switch cabinet having an insulation shielding structure, which includes an apparatus body 3;

the heat dissipation mechanism 2 is arranged on the outer surfaces of two sides of the equipment body 3, a containing opening for containing the heat dissipation mechanism 2 is formed in the equipment body 3, and the inside of the equipment body 3 is communicated with the outside when the heat dissipation mechanism 2 is in a heat dissipation state;

the rain shield 1 is fixedly connected with the equipment body 3, and the rain shield 1 is positioned on the upper surface of the equipment body 3;

the airflow generation mechanism 4 is fixedly connected with the equipment body 3, and the airflow generation mechanism 4 is positioned inside the equipment body 3.

Further, heat dissipation mechanism 2 includes second fixed block 26, the medial surface fixed connection who receives the mouth is put on second fixed block 26 and the equipment body 3, the lower fixed surface of second fixed block 26 is connected with fixed plate 23, the rain-proof tripe 27 of lower fixed surface of fixed plate 23, the first connecting block 25 of lower fixed surface of rain-proof tripe 27, the outer fixed surface in both sides of first connecting block 25 is connected with slider 24, heat dissipation mechanism 2 still includes first fixed block 21, the medial surface fixed connection who receives the mouth is put on first fixed block 21 and the equipment body 3, spout 22 has been seted up to the medial surface of first fixed block 21, slider 24 sliding connection is in spout 22.

Furthermore, the rain-proof louver 27 and the first fixing block 21 move telescopically, the first connecting block 25 is connected with the first fixing block 21 through the airflow generating mechanism 4 in a sliding manner, the fixing plate 23 is connected with the first fixing block 21 in a fixed manner, and the second fixing block 26 is connected with the first fixing block 21 in a fixed manner.

Further, the airflow generating mechanism 4 includes a second connecting block 41, outer surfaces of two sides of the second connecting block 41 are fixedly connected with inner side surfaces of the first connecting block 25, a connecting rack block 42 is fixedly connected with a lower surface of the second connecting block 41, an outer wall of the connecting rack block 42 is connected with a half gear 43 in a meshed manner, a circle center of the half gear 43 is fixedly connected with a transmission gear 44, an outer wall of the transmission gear 44 is connected with a driving gear 45 in a meshed manner, a circle center of the driving gear 45 is provided with a driving motor 46, an output end shaft of the driving motor 46 is fixedly connected with the circle center of the driving gear 45, the number of the half gears 43 and the number of the transmission gears 44 are two, the two sets of the half gears 43 and the transmission gears 44 are completely equal in structure, the two sets of the transmission gears 44 are respectively connected with the outer wall of the driving gear 45 in a meshed manner, and the rotation directions of the transmission gear 44, the driving gear 45 and the driving motor 46 are the same.

Further, connect fixedly connected with and half gear 43 assorted tooth's socket on the rack piece 42, another group's half gear 43 does not mesh with being connected rack piece 42 outer wall when one of them group's half gear 43 meshes with being connected rack piece 42 and being connected, driving motor 46's lower surface fixedly connected with puts and accomodates the piece, put the inside fixed connection who accomodates piece and equipment body 3, put fixedly connected with and be used for injecing the stopper of being connected rack piece 42 position on accomodating the piece, the stopper cup joints the outer wall department of being connected rack piece 42.

Further, the lower fixed surface of the equipment body 3 is connected with the damp-proof base 31, the outer side surface of the equipment body 3 is connected with the starting cabinet door 32 in a rotating mode, the upper surface of the equipment body 3 is provided with a plurality of air outlets 33, the structure of the rain cover 1 is arc-shaped, and the rain cover 1 is located right above the air outlets 33.

A shielding method of a switch cabinet with an insulation shielding structure comprises the following steps:

s1: holding the handle, opening the cabinet door 32;

s2: searching electromagnetic shielding equipment, setting a wave value to be shielded, pressing a start key and enabling the electromagnetic shielding equipment to work;

s3: electromagnetic wave is emitted to interfere the external magnetic field and shield the magnetic field.

Further, the electromagnetic shielding operation state is eddy current shielding.

The electromagnetic shielding is a measure for shielding the end part of a stator core of a large-capacity steam turbine generator by utilizing a part made of a conductive material or a ferromagnetic material so as to reduce additional loss and local heating caused by magnetic leakage at the end part of a stator winding in a structural member, and the shielding is to perform metal isolation between two space regions in the aspect of communication so as to control induction and radiation of an electric field, a magnetic field and electromagnetic waves from one region to the other region, in particular to surround an interference source of a component, a circuit, a combined part, a cable or the whole system by using a shielding body so as to prevent an interference electromagnetic field from diffusing outwards; the receiving circuit, device or system is surrounded by a shield, which protects them from external electromagnetic fields,

the eddy current shielding is that when an alternating electromagnetic field passes through the surface of a metal material or a hole surrounded by the metal material, the metal material forms eddy current due to induced electromotive force, the direction of a magnetic field generated by the eddy current is just opposite to that of an original magnetic field, and part of the original magnetic field is counteracted, so that the shielding effect is achieved, the higher the reversal rate of the metal material is, the larger the generated eddy current is, the better the shielding effect is, the metal material has certain resistance, and joule heat generated by the eddy current consumes the energy of an incident electromagnetic field, so that the shielding effect is achieved;

outside the shield, the magnetic force lines generated by the coil working current and the magnetic force lines generated by the shield body induced current are opposite in direction, and part of the magnetic force lines are mutually offset to play a role in shielding. The magnetic line of force outside the shield is a part of the magnetic line of force of the coil, the magnetic line of force of the shield induced current is less than the magnetic line of force produced by the coil, namely the magnetic line of force outside the shield can not be all offset;

the magnetic force lines generated by the working current of the coil are opposite to the direction of the magnetic force lines generated by the generated current of the shield, and the magnetic force lines are denser and the magnetic field is stronger due to the intervention of the shield in the region;

the direction of the magnetic force lines generated by the coil and the magnetic force lines generated by the shield body sensing generated current are opposite to each other on the inner side of the coil, which shows that the shield body can reduce the magnetic flux passing through the inner side of the coil, namely the self-inductance of the coil is reduced.

The working principle and the using process of the invention are as follows:

when the invention is used for radiating heat of the switch cabinet, the driving motor 46 is started, the driving motor 46 drives the driving gear 45 to rotate, the driving gear 45 drives the transmission gear 44 to rotate and drives the half gear 43, driven on the connecting rack block 42, the gears rotate in the direction of rotation of the drive motor 46, when contacting one set of the half gears 43, the connecting rack block 42 is driven to rise upwards, and the fixed second connecting block 41 and the first connecting block 25 are driven to rise upwards, the first connecting block 25 slides in the sliding groove 22 through the sliding block 24, so that the rainproof shutter 27 is retracted, when one set of the half gears 43 rotates out of the connecting rack block 42, the other half gear 43 rotates on the connecting rack block 42 and drives the connecting rack block 42 to move downwards, so as to drive the second connecting block 41, the first connecting block 25 and the rainproof louver 27 to move downwards, and thus to do repeated up-and-down movement, in such a movement, the second connecting block 41 generates an air flow on its upper surface, the external lower air flow enters the inside of the apparatus by actuating the closed rain-proof shutter 27 up and down, and raises the air flow with the higher internal temperature upward, the air is discharged through the air outlet 33, so as to complete the conversion of the internal air flow, and the higher temperature inside is diffused, so that the equipment can be better radiated, and in the rain, people control the driving motor 46 to stop rotating, so that the rain-proof shutter 27 is put down to shield the elements in the equipment body 3 for rain-proof, and when rainy day, general temperature is lower, use the gas outlet 33 to inside heat give off can, the heat dissipation is more high-efficient to can block the rainwater in rainy day, prevent the erosion of rainwater.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (10)

1. The utility model provides a cubical switchboard with insulation shield structure which characterized in that: comprises a device body (3);

the heat dissipation mechanism (2) is arranged on the outer surfaces of two sides of the equipment body (3), an accommodating port for accommodating the heat dissipation mechanism (2) is formed in the equipment body (3), and the inside of the equipment body (3) is communicated with the outside when the heat dissipation mechanism (2) is in a heat dissipation state;

the rain shield (1) is fixedly connected with the equipment body (3), and the rain shield (1) is positioned on the upper surface of the equipment body (3);

the air flow generating mechanism (4) is fixedly connected with the equipment body (3), and the air flow generating mechanism (4) is located inside the equipment body (3).

2. The switch cabinet with the insulation shielding structure according to claim 1, wherein: radiating mechanism (2) include second fixed block (26), second fixed block (26) and equipment body (3) are gone up to put the medial surface fixed connection who receives the mouth, the lower fixed surface of second fixed block (26) is connected with fixed plate (23), the rain-proof tripe (27) of lower fixed surface of fixed plate (23), the first connecting block (25) of lower fixed surface of rain-proof tripe (27) is connected with, the both sides external fixed surface of first connecting block (25) is connected with slider (24), radiating mechanism (2) still include first fixed block (21), the medial surface fixed connection who receives the mouth is gone up to put on first fixed block (21) and equipment body (3), spout (22) have been seted up to the medial surface of first fixed block (21), slider (24) sliding connection is in spout (22).

3. The switch cabinet with the insulation shielding structure according to claim 2, wherein: the rainproof shutter (27) and the first fixed block (21) move in a telescopic mode, the first connecting block (25) is connected with the first fixed block (21) in a sliding mode through the airflow generating mechanism (4), the fixed plate (23) is fixedly connected with the first fixed block (21), and the second fixed block (26) is fixedly connected with the first fixed block (21).

4. The switch cabinet with the insulation shielding structure according to claim 1, wherein: mechanism (4) take place including second connecting block (41) for the air current, the both sides surface of second connecting block (41) with respectively with the medial surface fixed connection of first connecting block (25), lower fixed surface of second connecting block (41) is connected rack piece (42), the outer wall meshing of connecting rack piece (42) is connected with half-gear (43), the centre of a circle department fixedly connected with drive gear (44) of half-gear (43), the outer wall meshing of drive gear (44) is connected with drive gear (45), the centre of a circle department of drive gear (45) is provided with driving motor (46), the output shaft of driving motor (46) and the centre of a circle department fixed connection of drive gear (45), half-gear (43) and the quantity of drive gear (44) are two sets of, and are two sets of half-gear (43) and drive gear (44) structure equals completely, and are two sets of drive gear (44) are connected with the outer wall meshing of drive gear (45) respectively.

5. The switch cabinet with the insulation shielding structure according to claim 4, wherein: the connecting rack block (42) is fixedly connected with a tooth groove matched with the half gear (43), wherein when one group of the half gear (43) is meshed with the connecting rack block (42), the other group of the half gear (43) is not meshed with the outer wall of the connecting rack block (42).

6. The switch cabinet with the insulation shielding structure according to claim 4, wherein: the lower surface fixedly connected with of driving motor (46) is put and is accomodate the piece, put the inside fixed connection who accomodates piece and equipment body (3), put on the piece fixedly connected with and be used for injecing the stopper of connecting rack piece (42) position.

7. The switch cabinet with the insulation shielding structure according to claim 1, wherein: the lower surface of the equipment body (3) is fixedly connected with a damp-proof base (31), the outer side surface of the equipment body (3) is rotatably connected with a starting cabinet door (32), and the upper surface of the equipment body (3) is provided with a plurality of air outlets (33).

8. The switch cabinet with the insulation shielding structure according to claim 1, wherein: the structure of the rain shield (1) is arc-shaped, and the rain shield (1) is positioned right above the air outlet (33).

9. A shielding method of a switch cabinet with an insulation shielding structure is characterized by comprising the following shielding steps:

s1: holding the holding rod, and opening and starting the cabinet door (32);

s2: searching electromagnetic shielding equipment, setting a wave value to be shielded, pressing a start button, and enabling the electromagnetic shielding equipment to work;

s3: electromagnetic wave is emitted to interfere the external magnetic field and shield the magnetic field.

10. The shielding method for the switch cabinet with the insulation shielding structure according to claim 9, wherein: the electromagnetic shielding working state is eddy current shielding.

Images