CN119584520A - A voltage control cabinet and voltage control device for protector testing - Google Patents
A voltage control cabinet and voltage control device for protector testing Download PDFInfo
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- CN119584520A CN119584520A CN202411800497.5A CN202411800497A CN119584520A CN 119584520 A CN119584520 A CN 119584520A CN 202411800497 A CN202411800497 A CN 202411800497A CN 119584520 A CN119584520 A CN 119584520A
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- electromagnetic shielding
- heat dissipation
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- cabinet body
- voltage control
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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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
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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
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20127—Natural convection
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
本发明公开了一种防护器测试的电压控制柜及电压控制装置，用于电压控制设备技术领域。本装置包括：柜本体，柜本体内设有用于安装电压控制器本体的预设安装位，柜本体上设有多个第一散热通孔；电磁屏蔽罩，电磁屏蔽罩设于预设安装位和第一散热通孔之间，电磁屏蔽罩与柜本体围合出电磁屏蔽空间，电磁屏蔽罩与柜本体之间留有通风通道，通风通道与电磁屏蔽空间和第一散热通孔均连通；移动机构，移动机构包括驱动部和移动部，驱动部与移动部传动连接，移动部设于柜本体的内部，移动部上安装电磁屏蔽罩，驱动部的传动用于带动电磁屏蔽罩移近或移远第一散热通孔，以使电磁屏蔽空间变大或变小。解决了现有技术无法兼顾良好散热和良好电磁屏蔽的问题。
The present invention discloses a voltage control cabinet and a voltage control device for protecting device testing, which are used in the technical field of voltage control equipment. The device comprises: a cabinet body, a preset installation position for installing a voltage controller body is provided in the cabinet body, and a plurality of first heat dissipation holes are provided on the cabinet body; an electromagnetic shielding cover, the electromagnetic shielding cover is provided between the preset installation position and the first heat dissipation hole, the electromagnetic shielding cover and the cabinet body enclose an electromagnetic shielding space, a ventilation channel is left between the electromagnetic shielding cover and the cabinet body, and the ventilation channel is connected to the electromagnetic shielding space and the first heat dissipation hole; a moving mechanism, the moving mechanism comprises a driving part and a moving part, the driving part is connected to the moving part by transmission, the moving part is provided inside the cabinet body, the electromagnetic shielding cover is installed on the moving part, and the transmission of the driving part is used to drive the electromagnetic shielding cover to move closer to or farther from the first heat dissipation hole, so as to enlarge or reduce the electromagnetic shielding space. The problem that the prior art cannot take into account both good heat dissipation and good electromagnetic shielding is solved.
Description
Technical Field
The invention relates to the technical field of voltage control equipment, in particular to a voltage control cabinet for testing a protector and a voltage control device.
Background
The voltage protection test is used for evaluating the voltage tolerance capability of electrical equipment, systems or devices, in a power system, various power transformation equipment in a transformer substation, such as a transformer, a switch cabinet and the like, need to be subjected to the voltage protection test, the equipment can bear various overvoltages possibly occurring in a power grid, the stable and safe power transmission is ensured, a general voltage control device is arranged in the voltage cabinet, a large amount of heat can be emitted around the device in the running process of the voltage control device, the internal components of the device can be influenced if the heat is not emitted timely, an electromagnetic field can appear in the running process of the voltage control device, and the normal running of the device can be interfered when the electromagnetic field is overlarge.
In the existing voltage control device, for electromagnetic shielding effect, a large amount of heat is accumulated in the device by reducing or even not arranging heat dissipation through holes, however, the electromagnetic shielding effect is weakened by arranging too many heat dissipation through holes for heat dissipation, and the heat dissipation and electromagnetic shielding requirements of different voltage controllers are different under different working conditions, so that how to realize good heat dissipation and good electromagnetic shielding of the voltage control cabinet and the control device is a problem to be solved.
Disclosure of Invention
The invention provides a voltage control cabinet and a voltage control device for testing a protector, and aims to solve the problem that the prior art cannot achieve good heat dissipation and good electromagnetic shielding.
The first aspect of the present invention provides a voltage control cabinet for protector testing, comprising:
the cabinet body is internally provided with a preset installation position for installing the voltage controller body, and the cabinet body is provided with a plurality of first heat dissipation through holes;
The electromagnetic shielding cover is arranged between the preset installation position and the first heat dissipation through hole, an electromagnetic shielding space is enclosed by the electromagnetic shielding cover and the cabinet body, a ventilation channel is reserved between the electromagnetic shielding cover and the cabinet body, and the ventilation channel is communicated with the electromagnetic shielding space and the first heat dissipation through hole;
The moving mechanism comprises a driving part and a moving part, wherein the driving part is in transmission connection with the moving part, the moving part is arranged in the cabinet body, the electromagnetic shielding cover is arranged on the moving part, and the transmission of the driving part is used for driving the electromagnetic shielding cover to move closer to or farther away from the first heat dissipation through hole so as to enlarge or reduce the electromagnetic shielding space.
In some embodiments of the first aspect, a second heat dissipation through hole capable of being opened and closed is arranged on the cabinet body, the second heat dissipation through hole is arranged on the ventilation channel, and the second heat dissipation through hole is communicated with the ventilation channel.
In some embodiments of the first aspect, a plurality of second heat dissipation through holes are formed on a wall body of the cabinet body;
A cover plate is connected to the outer side wall body of the voltage control cabinet in a turnover manner, and the cover plate is covered on the second heat dissipation through holes in a turnover manner;
the inner side of the cover plate is connected with an electric telescopic rod, and the electric telescopic rod is used for driving the cover plate to overturn.
In some embodiments of the first aspect, a through rod through groove is formed in a wall body of the cabinet body, and a sliding groove is formed in the cover plate;
the slotting axis of the through rod through slot and the slotting axis of the sliding slot are the same as the moving direction of the moving part;
One end of the electric telescopic rod is arranged on the moving part, and the other end of the electric telescopic rod penetrates through the rod passing through groove and is slidably arranged in the sliding groove.
In some embodiments of the first aspect, at least one side of the electromagnetic shield is provided with an opening, which communicates with both the ventilation channel and the electromagnetic shield space;
The wall body of the side, adjacent to the opening, of the cabinet body is not provided with the second heat dissipation through hole.
In some embodiments of the first aspect, the preset mounting location is disposed at a bottom of the cabinet body;
the ventilation channels are arranged vertically;
along the bottom of cabinet body extremely in the top direction of cabinet body, the second heat dissipation through-hole first heat dissipation through-hole arranges in proper order.
In some embodiments of the first aspect, the driving part comprises a driving motor and a reciprocating screw rod, wherein the driving motor is in transmission connection with the reciprocating screw rod, and the axis direction of the reciprocating screw rod is vertically arranged;
the movable part comprises a lifting block and a lifting frame, wherein the lifting block is slidably arranged on the reciprocating screw rod, the lifting frame is fixedly connected with the lifting block, the lifting block is also fixedly connected with the electric telescopic rod, the lifting frame is slidably connected with the cabinet body, and the lifting frame is detachably connected with the electromagnetic shielding cover.
In some embodiments of the first aspect, the moving portion further comprises a stopper and a stopper spring;
A limiting groove is formed in the lifting frame, a limiting strip is arranged on the outer wall of the electromagnetic shielding cover, and the limiting strip is arranged in the limiting groove;
One end of the limiting groove is opened, an arc-shaped through groove is formed in the open end of the lifting frame, and the limiting block covers the open end of the lifting frame;
The limiting block is provided with a bolt on one side adjacent to the limiting groove, the bolt is inserted into the arc-shaped through groove, and the limiting spring is compressed at the end parts of the bolt and the arc-shaped through groove.
In some embodiments of the first aspect, the second heat dissipating through holes have a smaller pore size than the first heat dissipating through holes, and the second heat dissipating through holes have a greater pore density than the first heat dissipating through holes.
Another aspect of the present invention provides a voltage control apparatus for a barrier test, comprising:
the voltage control cabinet of the first aspect;
The voltage controller body is arranged on the preset installation position.
From the above technical scheme, the invention has the following advantages:
The embodiment provides a voltage control cabinet for a protector test, wherein an electromagnetic shielding cover and a cabinet body enclose an electromagnetic shielding space, a preset installation position is positioned in the electromagnetic shielding space and can provide a good electromagnetic shielding effect for a voltage controller, the electromagnetic shielding cover is arranged between a first radiating through hole and the preset installation position, the electromagnetic shielding space can be communicated with the first radiating through hole through a ventilation channel, heat in the electromagnetic shielding space can be radiated, the electromagnetic shielding cover is connected with a moving part of a moving mechanism and can drive the electromagnetic shielding cover to move close to or move away from the first radiating through hole, so that the electromagnetic shielding space is enlarged or reduced, the electromagnetic shielding effect and the radiating effect can be flexibly adjusted when the voltage control cabinet is applied, the electromagnetic shielding cover is moved close to the first radiating through hole to enlarge the electromagnetic shielding space when the radiating effect needs to be improved, the electromagnetic shielding cover is always positioned between the through hole and the preset installation position, the electromagnetic shielding effect is improved, the electromagnetic shielding cover is moved close to the electromagnetic shielding effect needs to be improved, the electromagnetic shielding effect is always needs to be improved, the electromagnetic shielding effect is always is improved, and the electromagnetic shielding effect is always has been improved, and the electromagnetic shielding effect is always has good radiating effect.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a voltage control device for testing a protector according to an embodiment of the present invention;
Fig. 2 is a schematic cross-sectional structure diagram of a voltage control cabinet for testing a protector according to an embodiment of the present invention;
Fig. 3 is a schematic diagram of a partial enlarged cross-sectional structure of a voltage control cabinet for testing a protector according to an embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a cabinet body according to an embodiment of the present invention;
Fig. 5 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electromagnetic shielding case according to an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a lifting frame according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a limiting block according to an embodiment of the present invention.
Reference numerals:
1. the cabinet comprises a cabinet body, a preset installation position, a first heat dissipation through hole, a second heat dissipation through hole, a cover plate, a 130, a chute, a 14, an electric telescopic rod and a rod through groove, wherein the first heat dissipation through hole, the second heat dissipation through hole, the 13 and the cover plate are respectively arranged in the cabinet body;
2. electromagnetic shielding cover, 20 electromagnetic shielding space, 21 ventilation channel, 22 opening, 23 limit bar;
3. The device comprises a moving mechanism, a driving part, a driving motor, a reciprocating screw rod, a moving part, a lifting block, a lifting frame, 3110, a limiting groove, 3111, an arc-shaped through groove, 312, a limiting block, 3120, a limiting bolt, 313, a limiting spring, 314, a screw rod seat, 315, a first connecting seat, 316, a second connecting seat, 317 and a T-shaped block, wherein the driving part is arranged in the moving mechanism;
4. a voltage controller body.
Detailed Description
The embodiment of the invention provides a voltage control cabinet and a voltage control device for testing a protector, which are used for solving the technical problem that the prior art cannot achieve both good heat dissipation and good electromagnetic shielding.
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 8, the voltage control cabinet for testing a protector provided by the present invention includes:
The cabinet comprises a cabinet body 1, wherein a preset installation position 10 for installing a voltage controller body 4 is arranged in the cabinet body 1, and a plurality of first heat dissipation through holes 11 are formed in the cabinet body 1;
The electromagnetic shielding cover 2 is arranged in the cabinet body 1 of the electromagnetic shielding cover 2 and is positioned between the preset installation position 10 and the first heat dissipation through hole 11, an electromagnetic shielding space 20 is enclosed by the electromagnetic shielding cover 2 and the cabinet body 1, a ventilation channel 21 is reserved between the electromagnetic shielding cover 2 and the cabinet body 1, and the ventilation channel 21 is communicated with the electromagnetic shielding space 20 and the first heat dissipation through hole 11;
And the moving mechanism 3, a moving part 31 of the moving mechanism 3 is arranged in the cabinet body 1, the electromagnetic shielding cover 2 is arranged on the moving part 31, and the movement of the moving part 31 is used for driving the electromagnetic shielding cover 2 to move closer to or farther from the first heat dissipation through hole 11 so as to enlarge or reduce the electromagnetic shielding space 20.
The electromagnetic shielding space 20 is a space formed by enclosing the electromagnetic shielding cover 2 with the side wall and the bottom plate of the cabinet body 1, the longitudinal section shape of the space is similar to a shape of a 'mouth' or a 'convex', and the size of the electromagnetic shielding space 20 is regulated by the moving mechanism 3.
In the working process of the embodiment, as shown in fig. 1, when the voltage controller body 4 is installed and works, the driving part 30 is started to enable the electromagnetic shielding cover 2 to move to a proper position along with the moving part 31, the electromagnetic radiation of the voltage controller body 4 is absorbed by the electromagnetic shielding cover 2 and the cabinet body 1, and the heat of the voltage controller body 4 is transferred to the outside of the first heat dissipation through hole 11 through the ventilation channel 21.
In a specific application scenario, when the heat dissipation effect needs to be improved, the electromagnetic shielding cover 2 is moved close to the first heat dissipation through hole 11 to enlarge the electromagnetic shielding space 20, heat of the voltage controller body 4 is radiated and dissipated in the electromagnetic shielding space 20 more fully, the heat dissipation effect is good, and because the electromagnetic shielding cover 2 is always located between the heat dissipation through hole and the preset installation position 10, the electromagnetic radiation of the voltage controller body 4 can be absorbed by the electromagnetic shielding cover 2 and the cabinet body 1, and the electromagnetic shielding effect is simultaneously considered when the heat dissipation effect is improved.
In another specific application scenario, when the electromagnetic shielding effect needs to be improved, the electromagnetic shielding cover 2 is moved away from the first heat dissipation through hole 11 to reduce the electromagnetic shielding space 20, the number of times of electromagnetic radiation of the voltage controller body 4 reflected in the electromagnetic shielding space 20 is increased, the absorption efficiency of the electromagnetic shielding cover 2 and the cabinet body 1 is improved, and as the electromagnetic shielding space 20 is communicated with the first heat dissipation through hole 11 through the ventilation channel 21, heat of the voltage controller body 4 can be dissipated outwards through the ventilation channel 21, and the heat dissipation effect is improved while the electromagnetic shielding effect is improved.
According to the working process and the application scene, the voltage controller body 4 can always generate heat and convey electromagnetic radiation outwards, the electromagnetic shielding cover 2 can flexibly adjust the position of the electromagnetic shielding cover through the movement of the moving part 31, and the electromagnetic shielding effect and the heat dissipation effect can be flexibly adjusted, so that the voltage control cabinet can give consideration to the electromagnetic shielding effect and the heat dissipation effect, and is better suitable for fluctuation conditions under different voltage controllers and different working conditions.
Compared with the prior art, the electromagnetic shielding and radiating device has the advantages that firstly, functions are various, electromagnetic shielding and radiating functions are achieved, electromagnetic shielding and radiating can be achieved simultaneously when the voltage controller body 4 works, the existing technologies with only electromagnetic shielding functions or only radiating functions are avoided, only electromagnetic shielding or radiating functions can be achieved, the functions are single, the electromagnetic shielding effect and radiating effect can be flexibly adjusted, good radiating and good electromagnetic shielding are achieved, adaptability is high, and the existing technologies are avoided, and although the electromagnetic shielding and radiating functions can be achieved, the electromagnetic shielding effect and radiating effect are constant, and electromagnetic shielding and radiating cannot be flexibly adjusted.
In some specific embodiments, as shown in fig. 2, there is further provided an achievable structure of the cabinet body 1, where the cabinet body 1 includes a cabinet door and a cabinet body, and the front side hinge of the cabinet body is connected with the cabinet door, and when the cabinet door is specifically implemented, the cabinet door is turned over to open, so that the voltage controller body 4 can be taken or the equipment in the cabinet body 1 can be maintained.
In this embodiment, be equipped with the handle on the cabinet door, the equal fixedly connected with stabilizer blade in bottom four corners edge of the cabinet body, a plurality of stabilizer blade can support cabinet body 1.
In some specific embodiments, as shown in fig. 2 and fig. 4, there is further provided a realizable structure of the first heat dissipation through hole 11, where the first heat dissipation through hole 11 is disposed adjacent to a top side of the cabinet body 1, and the preset installation position 10 is disposed adjacent to a bottom side of the cabinet body 1, and the electromagnetic shielding cover 2 is located between the first heat dissipation through hole 11 and the preset installation position 10, so that the ventilation channel 21 is vertically disposed, and in a specific implementation, heat of the voltage controller body 4 on the preset installation position 10 can be transferred upwards to the first heat dissipation through hole 11 in the vertical ventilation channel 21 in combination with a rising characteristic of hot air, so that a heat dissipation effect is good.
In this embodiment, as shown in fig. 4, a plurality of first heat dissipation through holes 11 are disposed on opposite sides of the cabinet body 1, and a plurality of first heat dissipation through holes 11 on the same side are disposed at regular intervals, wherein the openings of the first heat dissipation through holes 11 are all oriented to a preset mounting position 10, that is, the opening axes of the first heat dissipation through holes 11 are inclined to the preset mounting position 10, and the first heat dissipation through holes 11 are rectangular holes.
In some specific embodiments, as shown in fig. 2 and fig. 4, in order to improve the effect of ventilation and heat dissipation, the cabinet body 1 is provided with a second heat dissipation through hole 12 which can be opened and closed, the second heat dissipation through hole 12 is arranged on the ventilation channel 21, the second heat dissipation through hole 12 is communicated with the ventilation channel 21, in specific implementation, heat in the electromagnetic shielding space 20 is transferred outwards through the ventilation channel 21, when ventilation and heat dissipation needs to be improved, after the second heat dissipation through hole 12 is opened, a part of heat can be transferred outwards through the second heat dissipation through hole 12, the rest of heat can be transferred outwards through the first heat dissipation through hole 11, so as to improve the effect of ventilation and heat dissipation, and conversely, if the effect of ventilation and heat dissipation does not need to be improved, the second heat dissipation through hole 12 is closed.
In this embodiment, as shown in fig. 2,4 and 5, two open-pore grooves are formed on the outer wall surface of the cabinet body 1, the two open-pore grooves are formed on two opposite sides of the cabinet body 1 in the width direction, a plurality of second heat dissipation through holes 12 are formed in the open-pore grooves, a cover plate 13 is connected to the outer side wall body of the voltage control cabinet in a reversible manner, the cover plate 13 is covered on the plurality of second heat dissipation through holes 12 in a reversible manner, an electric telescopic rod 14 is connected to the inner side of the cover plate 13, the electric telescopic rod 14 is used for driving the cover plate 13 to turn over, in specific implementation, the second heat dissipation through holes 12 can be opened and closed through the turning over of the cover plate 13, and the second heat dissipation through holes 12 are distributed, not the centralized large openings 22 are formed, so that heat dissipation, electromagnetic shielding and dust prevention can be achieved.
Based on the above embodiment, as shown in fig. 2, 4 and 5, in order to further balance the ventilation and heat dissipation effects and the electromagnetic shielding effects, the wall body of the cabinet body 1 is provided with a through rod slot 15, that is, the open hole slot is provided with the through rod slot 15, the cover plate 13 is provided with a vertically arranged chute 130, one end of the electric telescopic rod 14 is mounted on the moving part 31, and the other end of the electric telescopic rod 14 passes through the through rod slot 15 and is slidably mounted in the chute 130, and when the electric telescopic rod 14 is specifically implemented, the electric telescopic rod 14 can move along with the moving part 31, and when the electric telescopic rod 14 is located at the bottom of the chute 130, the reversible angle range of the cover plate 13 is smaller, and when the electric telescopic rod 14 is located at the top of the chute 130, the reversible angle range of the cover plate 13 is larger, that is, the movement of the moving part 31 increases or decreases the reversible angle range of the cover plate 13, so as to balance the ventilation and heat dissipation effects and the electromagnetic shielding effects.
In this embodiment, as shown in fig. 2 to 5, a first connecting seat 315 is rotatably connected to one end of the electric telescopic rod 14 adjacent to the lifting block 310 of the moving portion 31, the first connecting seat 315 is fixedly mounted on the lifting block 310, a second connecting seat 316 is rotatably connected to one end of the electric telescopic rod 14 adjacent to the sliding chute 130, the second connecting seat 316 is fixedly connected with a T-shaped block 317, the sliding chute 130 has a T-shaped cross section, and the electric telescopic rod 14 and the sliding chute 130 are slidably clamped with each other through the T-shaped block 317 and the T-shaped slot.
In a specific application scenario, when ventilation and heat dissipation are needed, but a higher electromagnetic shielding effect is needed to be maintained, the moving part 31 can be maintained to be motionless, at this time, the electromagnetic shielding cover 2 is motionless, the electric telescopic rod 14 is started to stretch and open the cover plate 13, and the cover plate 13 is maintained to have a smaller opening included angle, so that ventilation and heat dissipation and a higher electromagnetic shielding effect are realized.
In another specific application scenario, when ventilation and heat dissipation are needed in a large flow manner, the moving part 31 can be started to move, the electromagnetic shielding cover 2 and the electric telescopic rod 14 are driven to move towards the direction adjacent to the first heat dissipation through hole 11, at this time, the electromagnetic shielding space 20 can be enlarged, the electric telescopic rod 14 can be positioned at the top of the chute 130, at this time, the electric telescopic rod 14 is started to stretch and open the cover plate 13, the cover plate 13 is maintained to be opened at a larger included angle, heat of the voltage controller body 4 can be dissipated outwards as far as possible, and the ventilation and heat dissipation effects in a large flow manner are maintained.
In the embodiment, the preset installation position 10 is arranged at the bottom of the cabinet body 1, the ventilation channel 21 is vertically arranged, the second heat dissipation through holes 12 and the first heat dissipation through holes 11 are sequentially arranged along the direction from the bottom of the cabinet body 1 to the top of the cabinet body 1, and when the electric power control device is specifically implemented, heat of the voltage controller body 4 can be transferred to the second heat dissipation through holes 12 and the first heat dissipation through holes 11 through the vertically arranged ventilation channel 21, and the heat dissipation effect is fully improved due to the fact that the rising characteristic of hot air is combined.
Based on the above embodiment, as shown in fig. 4, the second heat dissipating through hole 12 is arranged on the same side as the first heat dissipating through hole 11, the aperture size of the second heat dissipating through hole 12 is smaller than the aperture size of the first heat dissipating through hole 11, the distribution density of the second heat dissipating through hole 12 is larger than the distribution density of the first heat dissipating through hole 11, in a specific implementation, the first heat dissipating through hole 11 with a large aperture is used as the main heat dissipating path, most heat can be dissipated through the first heat dissipating through hole, and the second heat dissipating through hole with a small aperture and a high density is used as the secondary supplement of heat dissipation, so that the heat dissipation of the whole device is more flexible, for example, when the heat dissipation capacity of the first heat dissipating through hole approaches the required target heat dissipation capacity, but the target heat dissipation capacity is required to be achieved more precisely, and the problem that the heat dissipation capacity cannot be adjusted according to the current heat situation can be avoided by using the second heat dissipating through the small aperture with a small aperture and the high density.
In some specific embodiments, as shown in fig. 2 and 3, there is further provided a realizable structure of the moving mechanism 3, where the moving mechanism 3 includes a driving part 30 and a moving part 31, the driving part 30 includes a driving motor 300 and a reciprocating screw 301, the driving motor 300 is in transmission connection with the reciprocating screw 301, the axis direction of the reciprocating screw 301 is vertically arranged, the moving part 31 includes a lifting block 310 and a lifting frame 311, the lifting block 310 is slidably mounted on the reciprocating screw 301, the lifting frame 311 is fixedly connected with the lifting block 310, the lifting block 310 is also fixedly connected with the electric telescopic rod 14, the lifting frame 311 is slidably connected with the cabinet body 1, the lifting frame 311 is detachably connected with the electromagnetic shielding cover 2, and when in practical implementation, the driving motor 300 drives the reciprocating screw 301 to rotate and drives the lifting block 310 and the lifting frame 311 to move up and down, so as to drive the electric telescopic rod 14 and the electromagnetic shielding cover 2 to move, and the electromagnetic shielding cover 2 is convenient to be replaced in a detachable connection manner, so that the electromagnetic shielding cover 2 is prevented from aging in a high-temperature environment for a long time.
In this embodiment, as shown in fig. 2, one end of the reciprocating screw 301 is in transmission connection with the output shaft of the driving motor 300, the other end of the reciprocating screw 301 is movably mounted on a screw seat 314, and the screw seat 314 is fixedly connected with the inner wall of the cabinet body 1, so that the reciprocating screw 301 is kept vertically arranged.
In this embodiment, the moving mechanism 3 is disposed on one side of the cabinet body 1 in the length direction, and a vertical support rod is disposed on the other side of the cabinet body 1 in the length direction, and a lifting slider is slidably mounted on the vertical support rod and fixedly connected to the lifting frame 311.
In this embodiment, as shown in fig. 7 and 8, there is further provided a detachable connection structure of the electromagnetic shielding cover 2, the moving portion 31 further includes a limiting block 312 and a limiting spring 313, a limiting groove 3110 is disposed in the lifting frame 311, limiting strips 23 are disposed on two outer walls of the electromagnetic shielding cover 2, the limiting strips 23 are mounted in the limiting groove 3110, one end of the limiting groove 3110 is open, an arc-shaped through groove 3111 is disposed at an open end of the lifting frame 311, the limiting block 312 covers the open end of the lifting frame 311, a limiting latch 3120 is disposed at a side of the limiting block 312 adjacent to the limiting groove 3110, the limiting latch 3120 is inserted into the arc-shaped through groove 3111, the limiting latch 3120 and an end of the arc-shaped through groove 3111 are compressed with the limiting spring 313.
In this embodiment, the lifting frame 311 is made of an insulating material, so that the electromagnetic shielding cover 2 is prevented from being electrically transmitted into the lifting frame 311, the lifting frame 311 is a U-shaped frame, the U-shaped frame extends to form a frame block, the inner wall of the cabinet body 1 is provided with a vertically arranged frame groove, and the frame block is slidably mounted in the frame groove, so that sliding connection between the lifting frame 311 and the cabinet body 1 is realized.
In this embodiment, as shown in fig. 7, a plurality of concave patterns are formed at one end of the limiting block 312 away from the limiting groove 3110, and the plurality of concave patterns can increase the friction force on the surface of the rotating limiting block 312.
In some specific embodiments, as shown in fig. 2 and fig. 6, there is further provided a structure of the electromagnetic shielding cover 2, at least one side surface of the electromagnetic shielding cover 2 is provided with an opening 22, and the opening 22 is communicated with the ventilation channel 21 and the electromagnetic shielding space 20, and when the electromagnetic shielding cover is implemented, heat in the electromagnetic shielding space 20 can be directly radiated outwards through the opening 22, the distance of the ventilation channel 21 with one side of the opening 22 is shorter, and the heat can be transferred to the first radiating through hole 11 more quickly.
In this embodiment, as shown in fig. 2 and 6, openings 22 are formed on opposite sides of the electromagnetic shielding cover 2 in the width direction of the cabinet body 1, so that the electromagnetic shielding cover 2 forms a "U" structure, ventilation channels 21 on two sides of the electromagnetic shielding space 20 are shorter, and heat in the electromagnetic shielding space 20 can be quickly transferred to the first heat dissipation through holes 11 from two sides.
In some possible embodiments, as shown in fig. 2 and 6, all sides of the electromagnetic shielding cover 2 are provided with openings 22, the electromagnetic shielding cover 2 forms a straight plate structure, the ventilation channels 21 on the periphery of the electromagnetic shielding space 20 are shorter, and the heat in the electromagnetic shielding space 20 can be quickly transferred to the first heat dissipation through holes 11 from the periphery, so that the ventilation and heat dissipation effects are optimal.
In this embodiment, the second heat dissipation through hole 12 is located on the side of the electromagnetic shielding case 2 without the opening 22, that is, the second heat dissipation through hole 12 is located on the side of the electromagnetic shielding case 2 with the side wall, where the second heat dissipation through hole 12 is communicated with the ventilation channel 21, and the opening 22 is not directly communicated with the second heat dissipation through hole 12, so that the electromagnetic shielding effect can be considered while heat dissipation is performed.
In this embodiment, the material of the electromagnetic shielding cover 2 is conductive rubber, or conductive plastic, or conductive metal material, which can effectively weaken the electric field intensity, avoid the strong influence of the electromagnetic field on internal components, and improve the service life of the device, so long as the material capable of realizing electromagnetic shielding can be used as the material of the electromagnetic shielding cover 2, and the person skilled in the art can select according to the actual requirements.
In some specific embodiments, as shown in fig. 2, there is further provided an achievable structure of the ventilation channel 21, a gap is formed between the outer peripheral side surface of the electromagnetic shielding cover 2 and the inner peripheral wall of the cabinet body 1, the ventilation channel 21 is arranged around the outer peripheral side of the electromagnetic shielding cover 2, one end of the ventilation channel 21 is communicated with the electromagnetic shielding space 20, and the other end of the ventilation channel 21 is communicated with the first heat dissipation through hole 11, and in specific implementation, the ventilation channel 21 is not directly opened on the electromagnetic shielding cover 2, but is formed by the outer peripheral side surface of the electromagnetic shielding cover 2 and the inner peripheral wall of the cabinet body 1, so that the electromagnetic shielding effect can be ensured, and the ventilation channel 21 is arranged around the electromagnetic shielding cover 2, and the heat transfer efficiency is high.
The position of the ventilation channel 21 changes with the movement of the electromagnetic shielding case 2, for example, if the electromagnetic shielding case 2 moves in a direction adjacent to the first heat dissipation through hole 11, the electromagnetic shielding space 20 becomes larger, and the position of the ventilation channel 21 changes from the original position to a position more adjacent to the first heat dissipation through hole 11, and conversely, the position of the ventilation channel 21 changes from the original position to a position more distant from the first heat dissipation through hole 11.
Based on the above embodiment, as shown in fig. 1, the voltage control device for testing the protector is provided below, and includes a voltage control cabinet and a voltage controller body 4, wherein the voltage controller body 4 is arranged on a preset installation position 10, and when the voltage control device is specifically implemented, the voltage controller body 4 can be placed in the voltage control cabinet, and as the heat dissipation effect and the electromagnetic shielding effect of the voltage control cabinet can be adjusted, the voltage control device can adapt to fluctuation conditions of different voltage controllers and different working conditions.
The foregoing embodiments are merely for illustrating the technical solution of the present invention, but not for limiting the same, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that modifications may be made to the technical solution described in the foregoing embodiments or equivalents may be substituted for parts of the technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solution of the embodiments of the present invention in essence.
Finally, it is further noted that relational terms such as first and second, and the like are 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.
Claims (10)
1. A voltage control cabinet for protector testing, comprising:
the cabinet body is internally provided with a preset installation position for installing the voltage controller body, and the cabinet body is provided with a plurality of first heat dissipation through holes;
The electromagnetic shielding cover is arranged between the preset installation position and the first heat dissipation through hole, an electromagnetic shielding space is enclosed by the electromagnetic shielding cover and the cabinet body, a ventilation channel is reserved between the electromagnetic shielding cover and the cabinet body, and the ventilation channel is communicated with the electromagnetic shielding space and the first heat dissipation through hole;
The moving mechanism comprises a driving part and a moving part, wherein the driving part is in transmission connection with the moving part, the moving part is arranged in the cabinet body, the electromagnetic shielding cover is arranged on the moving part, and the transmission of the driving part is used for driving the electromagnetic shielding cover to move closer to or farther away from the first heat dissipation through hole so as to enlarge or reduce the electromagnetic shielding space.
2. The voltage control cabinet according to claim 1, wherein the cabinet body is provided with a second heat dissipation through hole capable of being opened and closed, the second heat dissipation through hole is arranged on the ventilation channel, and the second heat dissipation through hole is communicated with the ventilation channel.
3. The voltage control cabinet according to claim 2, wherein a plurality of second heat dissipation through holes are formed in the wall body of the cabinet body;
A cover plate is connected to the outer side wall body of the voltage control cabinet in a turnover manner, and the cover plate is covered on the second heat dissipation through holes in a turnover manner;
the inner side of the cover plate is connected with an electric telescopic rod, and the electric telescopic rod is used for driving the cover plate to overturn.
4. The voltage control cabinet according to claim 3, wherein a through rod through groove is formed in the wall body of the cabinet body, and a sliding groove is formed in the cover plate;
the slotting axis of the through rod through slot and the slotting axis of the sliding slot are the same as the moving direction of the moving part;
One end of the electric telescopic rod is arranged on the moving part, and the other end of the electric telescopic rod penetrates through the rod passing through groove and is slidably arranged in the sliding groove.
5. The voltage control cabinet of claim 2, wherein at least one side of the electromagnetic shield is provided with an opening, the opening communicating with both the ventilation channel and the electromagnetic shield space;
The wall body of the side, adjacent to the opening, of the cabinet body is not provided with the second heat dissipation through hole.
6. The voltage control cabinet of claim 2, wherein the preset mounting location is disposed at a bottom of the cabinet body;
the ventilation channels are arranged vertically;
along the bottom of cabinet body extremely in the top direction of cabinet body, the second heat dissipation through-hole first heat dissipation through-hole arranges in proper order.
7. The voltage control cabinet of claim 6, wherein:
the driving part comprises a driving motor and a reciprocating screw rod, wherein the driving motor is in transmission connection with the reciprocating screw rod, and the axis direction of the reciprocating screw rod is vertically arranged;
the movable part comprises a lifting block and a lifting frame, wherein the lifting block is slidably arranged on the reciprocating screw rod, the lifting frame is fixedly connected with the lifting block, the lifting block is also fixedly connected with the electric telescopic rod, the lifting frame is slidably connected with the cabinet body, and the lifting frame is detachably connected with the electromagnetic shielding cover.
8. The voltage control cabinet of claim 7, wherein the moving part further comprises a stopper and a stopper spring;
A limiting groove is formed in the lifting frame, a limiting strip is arranged on the outer wall of the electromagnetic shielding cover, and the limiting strip is arranged in the limiting groove;
One end of the limiting groove is opened, an arc-shaped through groove is formed in the open end of the lifting frame, and the limiting block covers the open end of the lifting frame;
The limiting block is provided with a bolt on one side adjacent to the limiting groove, the bolt is inserted into the arc-shaped through groove, and the limiting spring is compressed at the end parts of the bolt and the arc-shaped through groove.
9. The voltage control cabinet of claim 2, wherein the aperture of the second heat dissipation through hole is smaller than the aperture of the first heat dissipation through hole, and the hole distribution density of the second heat dissipation through hole is greater than the hole distribution density of the first heat dissipation through hole.
10. A voltage control device for a protector test, comprising:
the voltage control cabinet of any one of claims 1 to 9;
The voltage controller body is arranged on the preset installation position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411800497.5A CN119584520B (en) | 2024-12-09 | 2024-12-09 | Voltage control cabinet and voltage control device for protector test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411800497.5A CN119584520B (en) | 2024-12-09 | 2024-12-09 | Voltage control cabinet and voltage control device for protector test |
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| CN119584520A true CN119584520A (en) | 2025-03-07 |
| CN119584520B CN119584520B (en) | 2025-12-09 |
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| US20100214736A1 (en) * | 2007-10-12 | 2010-08-26 | Wen Zhang | Cooling system for computer, cooling apparatus and cooling method |
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| CN215011352U (en) * | 2021-06-16 | 2021-12-03 | 江苏丁是丁精密科技有限公司 | Electromagnetic shielding cover structure |
| CN216289320U (en) * | 2021-10-29 | 2022-04-12 | 东莞市昝科电子科技有限公司 | A shield structure for connectors |
| CN221329474U (en) * | 2023-11-09 | 2024-07-12 | 东莞市优控机电设备有限公司 | A frequency conversion control cabinet with shielding function |
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2024
- 2024-12-09 CN CN202411800497.5A patent/CN119584520B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100214736A1 (en) * | 2007-10-12 | 2010-08-26 | Wen Zhang | Cooling system for computer, cooling apparatus and cooling method |
| CN206759926U (en) * | 2016-02-05 | 2017-12-15 | 莱尔德电子材料(深圳)有限公司 | The plate cascade screen BLS components suppressed for electromagnetic interference |
| CN215011352U (en) * | 2021-06-16 | 2021-12-03 | 江苏丁是丁精密科技有限公司 | Electromagnetic shielding cover structure |
| CN216289320U (en) * | 2021-10-29 | 2022-04-12 | 东莞市昝科电子科技有限公司 | A shield structure for connectors |
| CN221329474U (en) * | 2023-11-09 | 2024-07-12 | 东莞市优控机电设备有限公司 | A frequency conversion control cabinet with shielding function |
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| CN119584520B (en) | 2025-12-09 |
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