CN112928653B - Switch board with high heat dispersion - Google Patents

Switch board with high heat dispersion Download PDF

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Publication number
CN112928653B
CN112928653B CN202110091621.5A CN202110091621A CN112928653B CN 112928653 B CN112928653 B CN 112928653B CN 202110091621 A CN202110091621 A CN 202110091621A CN 112928653 B CN112928653 B CN 112928653B
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CN
China
Prior art keywords
rod
cabinet body
fixed block
heat dissipation
fixedly connected
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CN202110091621.5A
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Chinese (zh)
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CN112928653A (en
Inventor
奚占洲
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Shenzhen Sentong Power Technology Co ltd
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Shenzhen Sentong Power Technology Co ltd
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Priority to CN202110091621.5A priority Critical patent/CN112928653B/en
Publication of CN112928653A publication Critical patent/CN112928653A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66Regeneration of the filtering material or filter elements inside the filter
    • B01D46/68Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
    • B01D46/681Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/306Accessories, e.g. windows
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a power distribution cabinet with high heat dissipation performance, which comprises a cabinet body, wherein heat dissipation fans are arranged at the upper ends of two sides of the cabinet body, air inlet pipes are arranged at the air inlet ends of the two heat dissipation fans, ventilation mechanisms respectively positioned below the two heat dissipation fans are arranged on the cabinet body, each ventilation mechanism comprises a first fixed block and a second fixed block which are fixed on the inner wall of the cabinet body, and the second fixed block is positioned above the first fixed block. The invention has reasonable structure, and can automatically adjust the sizes of the first through hole and the second through hole according to the temperature, thereby adjusting the air inlet quantity in the cabinet body, improving the radiating effect on the cabinet body, simultaneously realizing the work of the radiating fan along with the increase of the temperature, further effectively and efficiently radiating the inside of the cabinet body, automatically cleaning the dustproof net, avoiding manual cleaning and reducing the labor capacity of staff.

Description

Switch board with high heat dispersion
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with high heat dissipation performance.
Background
The distribution cabinet (box) transfer power distribution cabinet (box) and the illumination distribution cabinet (box) and the metering cabinet (box) are the final-stage equipment of the distribution system. The power distribution cabinet is a generic name of a motor control center. The power distribution cabinet is used in the occasions with dispersed load and less loops; the motor control center is used for occasions with concentrated load and more loops. They distribute the power of a circuit of the upper-level distribution equipment to nearby loads. This class of equipment should provide protection, monitoring and control of the load.
At present, all existing power distribution cabinets have heat dissipation mechanisms, such as heat dissipation holes, heat dissipation fans and the like, but have certain disadvantages, for example, if heat is dissipated only through the heat dissipation holes, the situation of insufficient heat dissipation effect possibly exists, but when the temperature is reduced through the heat dissipation of the fans, the fans still work, and the situation of electric energy waste exists; if the fan can be controlled according to actual conditions, the waste of electric energy can be greatly reduced, and therefore, the power distribution cabinet with high heat dissipation performance is designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a power distribution cabinet with high heat dissipation performance, which can automatically adjust the sizes of a first through hole and a second through hole according to the temperature, so that the air inlet quantity in the cabinet body can be adjusted, the heat dissipation effect on the cabinet body can be improved, meanwhile, the heat dissipation fan can work along with the increase of the temperature, so that the cabinet body can be more effectively and efficiently dissipated, the dust screen can be automatically cleaned, the manual cleaning is not needed, and the labor capacity of staff is reduced.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a switch board with high heat dispersion, includes the cabinet body, the air-cooler is all installed to the upper end of cabinet body both sides, two the air-inlet end of air-cooler all installs the air-supply line, be equipped with the ventilation mechanism that is located two air-cooler below respectively on the cabinet body, ventilation mechanism is including fixing first fixed block and the second fixed block at cabinet body inner wall, the second fixed block is located the top of first fixed block, first fixed block and second fixed block run through respectively be equipped with rather than sliding connection's lower L shaped pole and last L shaped pole from top to bottom, be equipped with actuating mechanism between lower L shaped pole and the last L shaped pole, the inner wall fixedly connected with locating piece of cabinet body is equipped with between second fixed block and the last L shaped pole, the upper end fixedly connected with first electric contact piece of last L shaped pole, the lower extreme of locating piece is fixed with the second electric contact piece relative to first electric contact piece, be equipped with mechanism between last L shaped pole and the air-supply line, be equipped with the lower L shaped pole and the upper short-cut-off between cabinet body and the upper end, be equipped with the recess through-hole with a plurality of through-holes with the first brush-holder, the brush piece is equipped with a plurality of through-holes, the relative through-hole is equipped with the first brush-hole between the first end, the brush-holder is connected with a plurality of brush pieces.
Preferably, the air inlet pipe is positioned in the cabinet body, and the air inlet pipe is connected with the air inlet end of the heat radiation fan through bolts.
Preferably, the driving mechanism comprises a hollow rod fixed on the second fixed block, a piston is connected in the hollow rod in a sliding manner, an expansion liquid is arranged between the piston and the hollow rod, the upper end of the piston is fixedly connected with a guide rod, the guide rod penetrates through the hollow rod and is connected with the hollow rod in a sliding manner, and the upper end of the guide rod is fixedly connected with the bottom of the upper L-shaped rod.
Preferably, the first electrical contact and the second electrical contact are electrically connected with the heat dissipation fan.
Preferably, the plugging mechanism comprises a fixed plate fixed in the air inlet pipe, a plurality of third through holes are formed in the fixed plate in a penetrating mode, a second sliding plate is arranged in the air inlet pipe in a penetrating mode from top to bottom, the second sliding plate abuts against the fixed plate, a plurality of fourth through holes are formed in the second sliding plate in a penetrating mode, the fourth through holes and the third through holes are arranged in a staggered mode, a driving rod is fixedly connected to the bottom of the second sliding plate, and the driving rod is fixedly connected with the upper end of the upper L-shaped rod.
Preferably, the inner wall of the groove is provided with an annular inclined plane, and the lower end of the annular inclined plane is arranged at the back of the cabinet body.
Preferably, the transmission mechanism comprises a vertical rod fixed on a first fixed block, a first gear is mounted on the vertical rod, a second gear is fixedly connected to the short rod, the second gear is meshed with the first gear, a third fixed block is fixedly connected to the first sliding plate, a rack plate is fixedly connected to the third fixed block, and the rack plate is meshed with the first gear.
Preferably, the first sliding plate is provided with a through groove in a penetrating way, the through groove is opposite to the short rod, and the through groove is communicated with the second through hole.
Compared with the prior art, the invention has the beneficial effects that:
1. along with the increase of the internal temperature of cabinet, then the expansion fluid thermal expansion to drive piston and guide bar upward movement, the guide bar upward movement drives last L type pole, first sliding plate and lower L type pole and removes, and so the area that first through-hole and second through-hole are relative increases, so can increase the internal air volume of getting into cabinet, can increase the radiating degree in the cabinet, need not manual regulation.
2. The first sliding plate moves upwards to drive the third fixed block and the rack plate to move upwards, the rack plate moves upwards to drive the first gear to rotate, the first gear rotates to drive the second gear to rotate, so that the short rod and the rod brush are rotated, the dust screen can be cleaned through the rod brush, dust falling from cleaning falls on the annular inclined plane, finally slides off, manual cleaning is not needed, and the workload of workers is reduced.
3. If the heat dissipation effect in the cabinet body is still insufficient, the upper L-shaped rod continues to move upwards, the first electric contact piece is propped against the second electric contact piece, the heat dissipation fan is electrified, the corresponding upper L-shaped rod moves upwards to drive the driving rod to move upwards, and then the second sliding plate is driven to move upwards, at the moment, the first through hole is opposite to the second through hole, the third through hole is opposite to the fourth through hole, so that heat in the cabinet body can be discharged, and efficient heat dissipation can be carried out in the cabinet body.
4. Along with the work of heat dissipation fan, the internal heat of cabinet reduces, then inflation liquid shrinkage, and first electric contact piece and second electric contact piece separation, then first sliding plate and second sliding plate reset, and heat dissipation fan stop work can close it when no longer using heat dissipation fan, saves the electric energy.
In summary, the invention has reasonable structure, and the sizes of the first through hole and the second through hole can be automatically adjusted according to the temperature, so that the air inlet amount in the cabinet body can be adjusted, the radiating effect on the cabinet body can be improved, meanwhile, the working of the radiating fan can be realized along with the increase of the temperature, so that more effective and efficient radiating can be carried out in the cabinet body, the dust screen can be automatically cleaned, manual cleaning is not needed, and the labor capacity of staff is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a power distribution cabinet with high heat dissipation performance according to the present invention;
fig. 2 is a schematic structural diagram of a power distribution cabinet with high heat dissipation performance according to the present invention;
fig. 3 is a schematic structural diagram of a power distribution cabinet with high heat dissipation performance according to the present invention;
fig. 4 is a schematic structural diagram of a power distribution cabinet with high heat dissipation performance according to the present invention.
In the figure: 1 cabinet body, 2 cooling fan, 3 recess, 4 annular inclined planes, 5 quarter butt, 6 pole brushes, 7 dust screen, 8 first through holes, 9 first sliding plate, 10 second through holes, 11 upper L type pole, 12 second gear, 13 first fixed block, 14 lower L type pole, 15 montant, 16 first gear, 17 rack board, 18 third fixed block, 19 second fixed block, 20 hollow pole, 21 piston, 22 inflation liquid, 23 guide bar, 24 first electric contact piece, 25 locating piece, 26 second electric contact piece, 27 actuating lever, 28 air inlet pipe, 29 fixed plate, 30 third through holes, 31 second sliding plate, 32 fourth through holes, 33 through slots.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-4, a power distribution cabinet with high heat dissipation performance comprises a cabinet body 1, wherein heat dissipation fans 2 are installed at the upper ends of two sides of the cabinet body 1, air inlet pipes 28 are installed at the air inlet ends of the two heat dissipation fans 2, the air inlet pipes 28 are located in the cabinet body 1, and the air inlet pipes 28 are connected with the air inlet ends of the heat dissipation fans 2 through bolts, wherein the air inlet pipes 28 are rectangular pipes.
The cabinet body 1 is provided with a ventilation mechanism respectively located below the two heat dissipation fans 2, the ventilation mechanism comprises a first fixing block 13 and a second fixing block 19 which are fixed on the inner wall of the cabinet body 1, the second fixing block 19 is located above the first fixing block 13, the first fixing block 13 and the second fixing block 19 respectively penetrate through a lower L-shaped rod 14 and an upper L-shaped rod 11 which are connected with the first fixing block in a sliding mode, and the cross sections of the lower L-shaped rod 14 and the upper L-shaped rod 11 are rectangular.
A first sliding plate 9 is fixedly connected between the lower L-shaped rod 14 and the upper L-shaped rod 11, a driving mechanism is arranged between the second fixed block 19 and the upper L-shaped rod 11, the driving mechanism comprises a hollow rod 20 fixed on the second fixed block 19, a piston 21 is slidably connected in the hollow rod 20, an expansion liquid 22 is arranged between the piston 21 and the hollow rod 20, a guide rod 23 is fixedly connected at the upper end of the piston 21, the guide rod 23 penetrates through the hollow rod 20 and is slidably connected with the hollow rod, and the upper end of the guide rod 23 is fixedly connected with the bottom of the upper L-shaped rod 11; wherein the expansion fluid 22 is kerosene.
The inner wall of the cabinet body 1 is fixedly connected with a positioning block 25, the upper end of the upper L-shaped rod 11 is fixedly connected with a first electric contact piece 24, the lower end of the positioning block 25 is fixedly connected with a second electric contact piece 26 opposite to the first electric contact piece 24, the first electric contact piece 24 and the second electric contact piece 26 are electrically connected with the heat dissipation fan 2, and when the first electric contact piece 24 and the second electric contact piece 26 are propped against each other, the heat dissipation fan 2 is electrified to work.
A plugging mechanism is arranged between the upper L-shaped rod 11 and the air inlet pipe 28, the plugging mechanism comprises a fixed plate 29 fixed in the air inlet pipe 28, a plurality of third through holes 30 are formed in the fixed plate 29 in a penetrating manner, a second sliding plate 31 is arranged in the air inlet pipe 28 in a penetrating manner up and down, the second sliding plate 31 is propped against the fixed plate 29, a plurality of fourth through holes 32 are formed in the second sliding plate 31 in a penetrating manner, the fourth through holes 32 and the third through holes 30 are arranged in a staggered manner, a driving rod 27 is fixedly connected to the bottom of the second sliding plate 31, and the driving rod 27 is fixedly connected with the upper end of the upper L-shaped rod 11; wherein when the heat radiation fan 2 is not in use, the air inlet pipe 28 can be blocked by the cooperation of the fixed plate 29 and the second sliding plate 31, and dust can be placed in the cabinet body 1.
The outer wall of the cabinet body 1 is provided with a groove 3, the inner wall of the groove 3 is provided with an annular inclined plane 4, the lower end of the annular inclined plane 4 is arranged opposite to the cabinet body 1, and the swept dust can slide down through the annular inclined plane 4; the dust screen 7 is installed to the inner wall of recess 3, and recess 3 is linked together with cabinet body 1 through a plurality of first through-holes 8, runs through on the first sliding plate 9 to be equipped with a plurality of second through-holes 10, and a plurality of second through-holes 10 and a plurality of first through-holes 8 dislocation set and part are relative, run through on the cabinet body 1 and be equipped with rather than rotating the quarter butt 5 of being connected, the one end fixedly connected with pole brush 6 of quarter butt 5, and pole brush 6 offsets with the outside of dust screen 7.
A transmission mechanism is arranged between the short rod 5 and the first fixed block 13 and between the short rod 5 and the first sliding plate 9, the transmission mechanism comprises a vertical rod 15 fixed on the first fixed block 13, a first gear 16 is arranged on the vertical rod 15, a second gear 12 is fixedly connected to the short rod 5, the second gear 12 is meshed with the first gear 16, a third fixed block 18 is fixedly connected to the first sliding plate 9, a rack plate 17 is fixedly connected to the third fixed block 18, and the rack plate 17 is meshed with the first gear 16; the first sliding plate 9 is provided with a through groove 33 in a penetrating way, the through groove 33 is opposite to the short rod 5, and the through groove 33 is communicated with the second through hole 10; wherein the short bar 5 is arranged through the second through hole 10.
In the invention, as the second through holes 10 are partially opposite to the first through holes 8, air can flow into the cabinet body 1 through the opposite parts, and then is discharged through the opposite hole parts on the other side, so that the air in the cabinet body 1 can flow, the heat dissipation in the cabinet body 1 is realized, dust in the air can be filtered through the dust screen 7, and the dust can be prevented from entering the cabinet body 1;
along with the rise of the temperature in the cabinet body 1, the expansion liquid 22 is heated and expanded, so that the piston 21 and the guide rod 23 are driven to move upwards, the guide rod 23 moves upwards to drive the upper L-shaped rod 11, the first sliding plate 9 and the lower L-shaped rod 14 to move, the area of the first through hole 8 opposite to the second through hole 10 is increased, the air quantity entering the cabinet body 1 can be increased, the heat dissipation degree in the cabinet body 1 can be increased, and manual adjustment is not needed;
meanwhile, the first sliding plate 9 moves upwards to drive the third fixed block 18 and the rack plate 17 to move upwards, the rack plate 17 moves upwards to drive the first gear 16 to rotate, the first gear 16 rotates to drive the second gear 12 to rotate, so that the short rod 5 and the rod brush 6 are realized to rotate, the dust screen 7 can be cleaned through the rod brush 6, dust falling from cleaning falls on the annular inclined plane 4 and finally slides off, manual cleaning is not needed, and the workload of staff is reduced;
if the heat dissipation effect in the cabinet body 1 is still insufficient, the upper L-shaped rod 11 continues to move upwards, the first electric contact piece 24 is propped against the second electric contact piece 26, the heat dissipation fan 2 is electrified, the corresponding upper L-shaped rod 11 moves upwards to drive the driving rod 27 to move upwards, and then the second sliding plate 31 is driven to move upwards, at the moment, the first through hole 8 is opposite to the second through hole 10, the third through hole 30 is opposite to the fourth through hole 32, so that heat in the cabinet body 1 can be discharged, and the cabinet body 1 can be efficiently dissipated;
with the operation of the heat dissipation fan 2, the heat in the cabinet body 1 is reduced, the expansion liquid 22 is contracted, the first electric contact piece 24 is separated from the second electric contact piece 26, the first sliding plate 9 and the second sliding plate 31 are reset, the heat dissipation fan 2 stops working, and the heat dissipation fan 2 can be closed when not being used any more, so that electric energy is saved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (6)

1. The utility model provides a switch board with high heat dispersion, includes cabinet body (1), its characterized in that, radiator fan (2) are all installed to the upper end of cabinet body (1) both sides, and two air inlet end of radiator fan (2) all installs air-supply line (28), be equipped with the ventilation mechanism that is located two radiator fan (2) below respectively on cabinet body (1), ventilation mechanism is including fixing first fixed block (13) and second fixed block (19) at cabinet body (1) inner wall, second fixed block (19) are located the top of first fixed block (13), first fixed block (13) and second fixed block (19) run through respectively from top to bottom be equipped with its sliding connection's lower L type pole (14) and last L type pole (11), fixedly connected with first sliding plate (9) between lower L type pole (14) and last L type pole (11), be equipped with actuating mechanism between second fixed block (19) and last L type pole (11), the inner wall (1) is connected with first fixed plate (25) and second fixed plate (25) on the upper end contact location piece (24) of the upper end contact location piece (25) and upper end contact location piece (24) are fixed relatively, the novel anti-dust cabinet is characterized in that a groove (3) is formed in the outer wall of the cabinet body (1), a dust screen (7) is mounted on the inner wall of the groove (3), the groove (3) is communicated with the cabinet body (1) through a plurality of first through holes (8), a plurality of second through holes (10) are formed in the first sliding plate (9) in a penetrating mode, the second through holes (10) are arranged in a staggered mode and are partially opposite to the first through holes (8), a short rod (5) connected with the short rod in a rotating mode is arranged in the cabinet body (1) in a penetrating mode, one end of the short rod (5) is fixedly connected with a rod brush (6), the rod brush (6) abuts against the outer portion of the dust screen (7), and a transmission mechanism is arranged between the short rod (5) and the first fixed block (13) and the first sliding plate (9); the plugging mechanism comprises a fixed plate (29) fixed in an air inlet pipe (28), a plurality of third through holes (30) are formed in the fixed plate (29) in a penetrating mode, a second sliding plate (31) is arranged in the air inlet pipe (28) in a penetrating mode up and down, the second sliding plate (31) is propped against the fixed plate (29), a plurality of fourth through holes (32) are formed in the second sliding plate (31) in a penetrating mode, the fourth through holes (32) and the third through holes (30) are arranged in a staggered mode, a driving rod (27) is fixedly connected to the bottom of the second sliding plate (31), and the driving rod (27) is fixedly connected with the upper end of the upper L-shaped rod (11); the transmission mechanism comprises a vertical rod (15) fixed on a first fixed block (13), a first gear (16) is arranged on the vertical rod (15), a second gear (12) is fixedly connected to the short rod (5), the second gear (12) is meshed with the first gear (16), a third fixed block (18) is fixedly connected to the first sliding plate (9), a rack plate (17) is fixedly connected to the third fixed block (18), and the rack plate (17) is meshed with the first gear (16).
2. The power distribution cabinet with high heat dissipation performance according to claim 1, wherein the air inlet pipe (28) is located inside the cabinet body (1), and the air inlet pipe (28) is connected with an air inlet end of the heat dissipation fan (2) through bolts.
3. The power distribution cabinet with high heat dissipation performance according to claim 1, wherein the driving mechanism comprises a hollow rod (20) fixed on a second fixed block (19), a piston (21) is slidably connected in the hollow rod (20), an expansion liquid (22) is arranged between the piston (21) and the hollow rod (20), a guide rod (23) is fixedly connected to the upper end of the piston (21), and the guide rod (23) penetrates through the hollow rod (20) and is slidably connected with the hollow rod, and the upper end of the guide rod (23) is fixedly connected with the bottom of the upper L-shaped rod (11).
4. A power distribution cabinet with high heat dissipation performance according to claim 1, characterized in that the first and second electrical contacts (24, 26) are electrically connected to a heat dissipation fan (2).
5. The power distribution cabinet with high heat dissipation performance according to claim 1, wherein an annular inclined plane (4) is arranged on the inner wall of the groove (3), and the lower end of the annular inclined plane (4) is arranged opposite to the cabinet body (1).
6. The power distribution cabinet with high heat dissipation performance according to claim 1, wherein the first sliding plate (9) is provided with a through groove (33) in a penetrating manner, the through groove (33) is opposite to the short rod (5), and the through groove (33) is communicated with the second through hole (10).
CN202110091621.5A 2021-01-23 2021-01-23 Switch board with high heat dispersion Active CN112928653B (en)

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CN112928653B true CN112928653B (en) 2023-05-26

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CN114025564A (en) * 2021-11-02 2022-02-08 安徽安凯汽车股份有限公司 Heat dissipation mechanism for high-voltage electrical appliance system of electric automobile
CN116247547B (en) * 2023-05-12 2023-07-07 河北久维电子科技有限公司 Power distribution cabinet capable of improving internal heat dissipation efficiency
CN116759907B (en) * 2023-08-11 2023-12-19 广州羊城电气设备有限公司 Switch board with drying function

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CN111211494A (en) * 2020-01-15 2020-05-29 苏州本末智能科技有限公司 Dustproof heat dissipation mechanism and multifunctional high-voltage power distribution cabinet for new energy automobile
CN112103823A (en) * 2020-10-19 2020-12-18 张希刚 Multi-angle radiating switch board

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