CN113851969A - Low-voltage fixed power distribution cabinet with anti-collision protection function - Google Patents
Low-voltage fixed power distribution cabinet with anti-collision protection function Download PDFInfo
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- CN113851969A CN113851969A CN202111410066.4A CN202111410066A CN113851969A CN 113851969 A CN113851969 A CN 113851969A CN 202111410066 A CN202111410066 A CN 202111410066A CN 113851969 A CN113851969 A CN 113851969A
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- Prior art keywords
- heat dissipation
- power distribution
- distribution cabinet
- rotating shaft
- switch board
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
Abstract
The invention is applicable to the technical field of power distribution cabinets, and provides a low-voltage fixed power distribution cabinet with an anti-collision protection function, wherein a first anti-collision mechanism and a second anti-collision mechanism are arranged on the outer side of the power distribution cabinet, a heat dissipation control mechanism is arranged in the power distribution cabinet, a heat dissipation mechanism is arranged above communication equipment, the heat dissipation mechanism comprises a blowing set and a reciprocating driving set, when the outer side of the power distribution cabinet collides, the first anti-collision mechanism and the second anti-collision mechanism are arranged for buffering, damping and protecting, when the overheat temperature in the power distribution cabinet rises, the heat dissipation control mechanism controls the on-off of the circuit without manual intervention for cooling operation, when carrying out the heat dissipation under the circuit intercommunication relation and handling, the group function of blowing carries out the heat dissipation operation of blowing, and reciprocating drive group function has promoted the heat dissipation scope of blowing of the group of blowing greatly, and the radiating effect is more showing, has realized the cooling protection of the inside heat dissipation of switch board, has the anticollision can the well and be convenient for carry out the advantage of heat dissipation protection.
Description
Technical Field
The invention relates to the field of power distribution cabinets, in particular to a low-voltage fixed power distribution cabinet with an anti-collision protection function.
Background
The distribution cabinet (case) is a final-stage device of a distribution system and is divided into a power distribution cabinet (case), a lighting distribution cabinet (case) and a metering cabinet (case). The power distribution cabinet is a general name of a motor control center. The power distribution cabinet is used in the occasions with dispersed loads and less loops; the motor control center is used for occasions with concentrated loads and more loops. They distribute the power of a certain circuit of the upper-level distribution equipment to the nearby loads. This level of equipment should provide protection, monitoring and control of the load.
The switch board is motor control center's general name, the switch board adopts large screen liquid crystal touch screen, to voltage, the electric current, the frequency, useful power, useless power, the electric energy, electric power quality such as harmonic is omnidirectional control, the user is surveyability to computer lab distribution system operation conditions, so that discover the potential safety hazard early, avoid the risk early, but the fixed switch board outside of the low pressure of present majority does not have crashproof structure, because the use place of switch board is comparatively extensive, the switch board uses outside difficult exemption to receive the striking after the installation for a long time, the inside interconnecting link of switch board is damaged easily to comparatively strong striking, be unfavorable for long-term use, most switch boards do not set up radiating function simultaneously, the inside interconnecting link of switch board produces the trouble easily under high temperature environment, influence the use, can't satisfy the in-service use needs.
It can be seen from above that, there is not crashproof function and the shortcoming of the heat dissipation protection of being not convenient for in the fixed switch board of current low pressure, is difficult to obtain popularization and application.
Therefore, it is necessary to provide a low-voltage fixed power distribution cabinet with an anti-collision protection function, aiming at solving the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention aims to provide a low-voltage fixed power distribution cabinet with an anti-collision protection function, and aims to overcome the defects that the existing low-voltage fixed power distribution cabinet has no anti-collision function and is inconvenient for heat dissipation protection.
In order to achieve the purpose, the invention provides the following technical scheme:
switch board is fixed to low pressure with anticollision protect function, including the switch board, fixed mounting has communication equipment in the switch board, the top of switch board is provided with first anticollision institution, the outside of switch board is provided with second anticollision institution, second anticollision institution includes first anticollision group and second anticollision group, be provided with heat dissipation control mechanism in the switch board, heat dissipation control mechanism includes electric conduction group and delay group, communication equipment's top is provided with heat dissipation mechanism, heat dissipation mechanism is including blowing group and reciprocating drive group, blow the group with reciprocating drive group is connected, the outside of switch board articulates there is the cabinet door.
As a further scheme of the invention, the first anti-collision mechanism comprises a first connecting seat, a first elastic part, a first spring and a top protection plate, the top of the power distribution cabinet is fixedly connected with a plurality of first connecting seats, a plurality of first elastic parts and first springs are arranged at the connecting positions of the first connecting seats and the top protection plate, the first spring fixing rings are wound on the outer sides of the first elastic parts, and when an impact force is generated on the top of the power distribution cabinet from the outside, the impact force drives the top protection plate to respectively compress the first elastic parts and the first springs for buffering and shock absorption, so that shock absorption protection on the top of the power distribution cabinet is realized.
As a further scheme of the invention, the first anti-collision set comprises a connecting plate, a first rotating shaft, a first connecting rod, a second rotating shaft, a third rotating shaft, a second connecting seat, a second elastic member and a third connecting seat, the first rotating shaft is respectively connected to the side protection plate and the connecting plate in a sliding manner, the connecting plate is fixedly connected to the power distribution cabinet, two ends of the first connecting rod are respectively connected to the first rotating shaft in a rotating manner, the first connecting rod is connected to the second connecting rod in a rotating manner through the second rotating shaft, two ends of the second connecting rod are respectively connected to the side protection plate and the connecting plate in a rotating manner through the third rotating shaft, one end of the first rotating shaft is connected to the second connecting seat in a rotating manner, the second connecting seat is connected to the third connecting seat in a fixed manner through the second elastic member, the third connecting seat is fixedly connected to the power distribution cabinet, when the side edge of the power distribution cabinet collides, order about the side guard plate and push down the contained angle that makes between first connecting rod and the second connecting rod and change, order about first pivot difference sliding connection on side guard plate and connecting plate, drive the inside of second connecting seat compression second elastic component difference sliding connection in switch board and side guard plate and cushion the shock attenuation.
As a further scheme of the invention, the second anti-collision group comprises a loop bar, a sleeve, a second spring, a third connecting rod, a first moving block, a first sliding rod, a third spring and a fourth connecting seat, the loop bar is fixedly connected to the side protection plate, the loop bar is slidably connected in the sleeve, the second spring is arranged at the connecting position of the loop bar and the sleeve, the sleeve is fixedly connected to the power distribution cabinet, one end of the third connecting rod is hinged to the outer side of the loop bar, the other end of the third connecting rod is hinged to the first moving block, the first moving block is slidably connected to the first sliding rod, the first sliding rod is fixedly mounted on the power distribution cabinet through the fourth connecting seat, the third spring is arranged on one side of the first moving block, a plurality of anti-collision bulges convenient to protect are arranged on the side protection plate and the top protection plate, the loop bar on the side protection plate is driven to compress the second spring and is slidably connected in the sleeve to buffer and damp, and meanwhile, the included angle between the third connecting rods is changed, and the first moving block is driven to compress the third spring to be connected to the first sliding rod in a sliding manner for damping.
As a further scheme of the invention, the conductive set comprises a first connecting pipe, a second sliding rod, a second connecting pipe, a piston plate, an expansion ball, a heat conducting plate, a first conductive block and a second conductive block, the first connecting pipe and the second connecting pipe are both fixedly mounted on the inner wall of the power distribution cabinet, the second sliding rod is respectively connected to the inside of the first connecting pipe and the second connecting pipe in a sliding manner, one end of the second sliding rod is fixedly connected with the piston plate, the other end of the second sliding rod is fixedly connected with the first conductive block, one side of the piston plate is provided with the expansion ball, one side of the expansion ball is provided with the heat conducting plate, the outside of the first conductive block is provided with the second conductive block convenient for matching connection, the second conductive block is fixedly mounted inside the second connecting pipe, and when communication equipment in the power distribution cabinet is overheated, the expansion ball is ceaselessly expanded under the heat conducting action of the heat conducting plate, the second slide bar on the pushing piston plate drives the first conductive block to be connected inside the second connecting pipe in a sliding mode, and when the first conductive block is in contact with the second conductive block, the communication of the circuit of the heat dissipation mechanism inside the power distribution cabinet is achieved, and corresponding heat dissipation treatment is facilitated.
As a further scheme of the invention, the delay group comprises a screw rod, a delay solenoid, a guide rod and a fourth spring, one end of the screw rod is rotatably connected to the first conductive block through a mounting part, the screw rod is in threaded connection with the delay solenoid, the delay solenoid is fixedly connected to the inside of the second connecting pipe, the screw rod is rotatably connected with the guide rod, the guide rod is fixedly connected to the inside of the delay solenoid through the fourth spring, the screw rod compresses the fourth spring, and the screw thread is screwed to the inside of the delay solenoid, when the temperature in the power distribution cabinet is reduced, the expansion ball is contracted, when the temperature is prevented from being uneven under the threaded connection relationship between the screw rod and the delay solenoid, the repeated connection path and the open circuit of the first conductive block and the second conductive block are avoided, the repeated starting of the electrical appliance in the heat dissipation mechanism is avoided, the electrical appliance in the heat dissipation mechanism is protected, the fourth spring is arranged to slowly push the first conductive block on the screw rod away from the matching connection range with the second conductive block, the controllability of the circuit connection is achieved.
As a further scheme of the invention, the blowing set comprises a heat dissipation box, fan blades, a first motor, a first connecting frame, a second moving block and a movable connecting seat, the heat dissipation box is fixedly connected inside the power distribution cabinet, a dustproof net is arranged on the heat dissipation box, a protection frame convenient to protect is arranged at the joint of the heat dissipation box and the communication equipment, a heat insulation layer and a moisture-proof layer are arranged outside the communication equipment, the fan blades are fixedly connected with an output shaft of the first motor, the first motor is fixedly arranged on the second moving block through the first connecting frame, the second moving block is slidably connected on the movable connecting seat, the movable connecting seat is fixedly connected inside the heat dissipation box, and when heat dissipation treatment is carried out under the circuit communication relationship, the first motor drives the fan blades to rotate to carry out blowing heat dissipation operation.
As a further scheme of the present invention, the reciprocating driving group includes a fourth connecting rod, a fourth rotating shaft, a curved connecting block, a first gear, a fifth rotating shaft, a second gear, a sixth rotating shaft, a third gear, a fixed sleeve, a second connecting frame, a synchronizing member and a second motor, one end of the fourth connecting rod is rotatably connected to the second moving block through the rotating shaft, the other end of the fourth connecting rod is rotatably connected to the curved connecting block through the fourth rotating shaft, one end of the fourth rotating shaft is fixedly connected to the first gear, the curved connecting block is rotatably connected to the fifth rotating shaft, the fifth rotating shaft is fixedly connected to the second gear, the sixth rotating shaft respectively penetrates through the third gear and the fixed sleeve, one end of the sixth rotating shaft is fixedly connected to the curved connecting block, the first gear is engaged with the second gear, and the second gear is engaged with the third gear, the third gear is fixedly connected to the fixed sleeve, the fixed sleeve is fixedly connected to the inside of the heat dissipation box through the second connecting frame, the sixth rotating shaft is rotatably connected with an output shaft of the second motor through the synchronizing part, the second motor is fixedly installed in the heat dissipation box, the second motor operates to drive the sixth rotating shaft to drive the curved connecting block to rotate under the synchronous driving action of the synchronizing part, so that the second gear is meshed and rotatably connected to the third gear and the first gear is meshed and rotatably connected to the second gear, the fourth rotating shaft on the first gear drives the fourth connecting rod to rotate, one end of the fourth connecting rod drives the second moving block to be in reciprocating sliding connection with the moving connecting seat, and accordingly, the fan blades on the first motor are in reciprocating movement to perform blowing heat dissipation, the blowing heat dissipation range of the fan blades is greatly improved, the heat dissipation effect is more remarkable, and heat dissipation and cooling protection for the inside of the power distribution cabinet is realized, and the arranged dustproof net is subjected to dustproof treatment.
As a further scheme of the invention, the power distribution cabinet is provided with a vibration sensor convenient for sensing vibration and an alarm convenient for alarming, when the outer side of the power distribution cabinet collides, the vibration sensor senses to enable the alarm to buzz and flash to alarm under the action of the controller, so that a worker is reminded of the collision.
According to a further scheme of the invention, the cabinet door is provided with the observation window and the lock catch, the outer side of the power distribution cabinet is provided with a plurality of ventilation openings, the cabinet door arranged on the power distribution cabinet is convenient for maintaining the interior of the power distribution cabinet, the observation window arranged on the cabinet door is convenient for observing the condition inside the power distribution cabinet, and the ventilation openings are convenient for ventilating and radiating the power distribution cabinet.
According to the low-voltage fixed power distribution cabinet with the anti-collision protection function, the communication equipment is fixedly installed in the power distribution cabinet, the first anti-collision mechanism is arranged at the top of the power distribution cabinet, the second anti-collision mechanism is arranged on the outer side of the power distribution cabinet and comprises the first anti-collision group and the second anti-collision group, when the top of the power distribution cabinet collides, the arranged first anti-collision mechanism performs buffering and shock absorption, shock absorption and protection on the top of the power distribution cabinet are achieved, when the side edge of the power distribution cabinet collides, the arranged first anti-collision group and the arranged second anti-collision group perform buffering and shock absorption, the anti-collision and shock absorption performance of the power distribution cabinet is greatly improved in a multiple shock absorption mode, and good protection on the outer side of the power distribution cabinet is achieved.
Be provided with heat dissipation control mechanism in the switch board, heat dissipation control mechanism includes electric conduction group and time delay group, when overheat temperature risees in the switch board, the intercommunication of circuit is realized under the effect of temperature to the electric conduction group that sets up, realize the intercommunication of the inside heat dissipation mechanism circuit of switch board promptly, be convenient for carry out corresponding heat dissipation and handle, the time delay group that sets up has avoided the interior temperature decline of switch board when inhomogeneous repeatedly connect the route with open circuit, the repeated start of electrical apparatus in the heat dissipation mechanism has been avoided, protect the electrical apparatus in the heat dissipation mechanism, time delay group can realize the controllable of switch board internal circuit connection promptly, need not artificial intervention cooling operation, energy saving and emission reduction is efficient.
Communication equipment's top is provided with heat dissipation mechanism, heat dissipation mechanism is including blowing group and reciprocating drive group, it is connected with reciprocating drive group to blow the group, the outside of switch board articulates there is the cabinet door, when carrying out the heat dissipation treatment under the relation of circuit intercommunication, it bloies the heat dissipation operation to blow the group function, reciprocating drive group function has promoted the heat dissipation scope of blowing of group greatly, the radiating effect is more showing, realized the inside heat dissipation cooling protection of switch board, possess the anticollision functional good and be convenient for carry out the advantage of heat dissipation protection.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the invention.
Fig. 2 is a schematic diagram of an outer side connection structure of a side protection plate and a power distribution cabinet in the embodiment of the invention.
Fig. 3 is a schematic view of the connection structure of the side protection plate and the inner side of the power distribution cabinet in the embodiment of the invention.
Fig. 4 is a schematic view of a connecting structure of the loop bar and the sleeve in the embodiment of the invention.
Fig. 5 is a schematic diagram of an internal structure of the power distribution cabinet in the embodiment of the present invention.
Fig. 6 is a schematic view of a connection structure of a first connection pipe and a second connection pipe in the embodiment of the invention.
FIG. 7 is a schematic view of an internal connection structure of a heat dissipation box according to an embodiment of the present invention.
FIG. 8 is a schematic view of an internal connection structure of a heat dissipation box according to an embodiment of the present invention.
Reference numerals: 1-power distribution cabinet, 2-first connecting seat, 3-first elastic piece, 4-first spring, 5-top protection plate, 6-anti-collision protrusion, 7-vibration sensor, 8-alarm, 9-side protection plate, 10-first rotating shaft, 11-first connecting rod, 12-second connecting rod, 13-second rotating shaft, 14-third rotating shaft, 15-second connecting seat, 16-second elastic piece, 17-third connecting seat, 18-loop bar, 19-sleeve, 20-second spring, 21-third connecting rod, 22-first moving block, 23-first sliding rod, 24-third spring, 25-fourth connecting seat, 26-heat insulation layer, 27-moisture-proof layer, 28-first connecting tube, 29-second sliding rod, 30-a second connecting pipe, 31-a piston plate, 32-an expansion ball, 33-a heat conducting plate, 34-a first conducting block, 35-a second conducting block, 36-a screw rod, 37-a delay solenoid, 38-a guide rod, 39-a fourth spring, 40-communication equipment, 41-a protective frame, 42-a radiating box, 43-a dustproof net, 44-a fan blade, 45-a first motor, 46-a first connecting frame, 47-a second moving block, 48-a movable connecting seat, 49-a fourth connecting rod, 50-a fourth rotating shaft, 51-a curved connecting block, 52-a first gear, 53-a fifth rotating shaft, 54-a second gear, 55-a sixth rotating shaft, 56-a third gear, 57-a fixed sleeve, 58-a second connecting frame, 59-synchronous piece, 60-second motor, 61-cabinet door, 62-observation window, 63-ventilation opening and 64-connecting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 to 8, a structure diagram of a low-voltage fixed power distribution cabinet with an anti-collision protection function according to an embodiment of the present invention includes a power distribution cabinet 1, a communication device 40 is fixedly installed in the power distribution cabinet 1, a first anti-collision mechanism is installed at the top of the power distribution cabinet 1, a second anti-collision mechanism is installed outside the power distribution cabinet 1, the second anti-collision mechanism includes a first anti-collision set and a second anti-collision set, a heat dissipation control mechanism is installed in the power distribution cabinet 1, the heat dissipation control mechanism includes a conductive set and a delay set, a heat dissipation mechanism is installed above the communication device 40, the heat dissipation mechanism includes a blowing set and a reciprocating drive set, the blowing set is connected to the reciprocating drive set, and a cabinet door 61 is hinged to the outside of the power distribution cabinet 1.
Preferably, in an embodiment of the present invention, when a top collision occurs at the outer side of the power distribution cabinet 1, the arranged first anti-collision mechanism performs buffering and shock absorption, so as to achieve shock absorption and protection at the top of the power distribution cabinet 1, and when a side of the power distribution cabinet 1 collides, the arranged first anti-collision set and the arranged second anti-collision set perform buffering and shock absorption, so as to greatly improve the anti-collision and shock absorption performance of the power distribution cabinet 1, and achieve good protection at the outer side of the power distribution cabinet 1, when an overheat temperature in the power distribution cabinet 1 rises, the arranged conductive set achieves circuit communication under the action of the temperature, i.e. achieves circuit communication of the heat dissipation mechanism inside the power distribution cabinet 1, so as to facilitate corresponding heat dissipation treatment, the arranged time delay set avoids repeated connection and disconnection when the temperature in the power distribution cabinet 1 falls unevenly, avoids repeated starting of electrical appliances in the heat dissipation mechanism, and protects the electrical appliances in the heat dissipation mechanism, the time delay group can realize the controllability of the circuit connection inside the power distribution cabinet 1, the manual intervention cooling operation is not needed, the energy conservation and emission reduction efficiency is high, when the heat dissipation treatment is carried out under the relation of circuit communication, the air blowing group operates to carry out the air blowing heat dissipation operation, the reciprocating driving group operates to greatly improve the air blowing heat dissipation range of the air blowing group, the heat dissipation effect is more obvious, and the heat dissipation cooling protection inside the power distribution cabinet 1 is realized.
As shown in fig. 1 to 4, as a preferred embodiment of the present invention, the first anti-collision mechanism includes a first connection seat 2, a first elastic member 3, a first spring 4 and a top protection plate 5, the top of the power distribution cabinet 1 is fixedly connected with a plurality of first connection seats 2, a plurality of first elastic members 3 and first springs 4 are disposed at a connection position of the first connection seats 2 and the top protection plate 5, and the first springs 4 are fixedly surrounded on the outer side of the first elastic member 3.
Further, the first anti-collision set comprises a connecting plate 64, a first rotating shaft 10, a first connecting rod 11, a second connecting rod 12, a second rotating shaft 13, a third rotating shaft 14, a second connecting seat 15, a second elastic element 16 and a third connecting seat 17, the first rotating shaft 10 is respectively connected with the side protection plate 9 and the connecting plate 64 in a sliding manner, the connecting plate 64 is fixedly connected with the power distribution cabinet 1, two ends of the first connecting rod 11 are respectively connected on the first rotating shaft 10 in a rotating way, the first connecting rod 11 is connected with the second connecting rod 12 in a rotating way through the second rotating shaft 13, the two ends of the second connecting rod 12 are respectively and rotatably connected to the side protection plate 9 and the connecting plate 64 through a third rotating shaft 14, one end of the first rotating shaft 10 is rotatably connected with a second connecting seat 15, the second connecting seat 15 is fixedly connected with a third connecting seat 17 through a second elastic piece 16, and the third connecting seat 17 is fixedly connected on the power distribution cabinet 1.
Further, the second anti-collision group comprises a loop bar 18, a sleeve 19, a second spring 20, a third connecting rod 21, a first moving block 22, a first sliding rod 23, a third spring 24 and a fourth connecting seat 25, the loop bar 18 is fixedly connected to the side protection plate 9, the loop bar 18 is slidably connected in the sleeve 19, a second spring 20 is arranged at the joint of the loop bar 18 and the sleeve 19, the sleeve 19 is fixedly connected to the power distribution cabinet 1, the outer side of the loop bar 18 is hinged with one end of a third connecting rod 21, the other end of the third connecting rod 21 is hinged on a first moving block 22, the first moving block 22 is slidably connected to a first sliding rod 23, the first sliding rod 23 is fixedly installed on the power distribution cabinet 1 through a fourth connecting seat 25, a third spring 24 is arranged on one side of the first moving block 22, and a plurality of anti-collision protrusions 6 which are convenient to protect are arranged on the side protection plate 9 and the top protection plate 5.
Further, be provided with the vibrations sensor 7 and the alarm 8 of being convenient for report to the police of being convenient for of the response vibrations on switch board 1.
Preferably, the first elastic member 3 and the second elastic member 16 each include, but are not limited to, a spring telescopic rod.
Preferably, in this embodiment, be provided with top guard plate 5 and side guard plate 9 through the outside of switch board 1 and be convenient for protect switch board 1, be provided with the protective properties in a plurality of anticollision arch 6 has strengthened the top guard plate 5 and the side guard plate 9 outside.
Preferably, when the outside of switch board 1 bumps into, the vibrations sensor 7 that sets up responds to and makes alarm 8 buzz and flash of light warning under the effect of controller, is convenient for remind the staff to bump into.
Preferably, when the external world produces the impact force to the top of switch board 1, the impact force orders about top guard plate 5 and compresses first elastic component 3 and first spring 4 respectively and cushion and the shock attenuation, has realized the shock attenuation protection to the top of switch board 1.
Preferably, when the side of switch board 1 produced the collision, order about side guard plate 9 and push down the contained angle that makes between first connecting rod 11 and the second connecting rod 12 and produce the change, order about first pivot 10 sliding connection respectively on side guard plate 9 and connecting plate 64, drive the inside of second connecting seat 15 compression second elastic component 16 sliding connection in switch board 1 and side guard plate 9 respectively and cushion the shock attenuation.
Preferably, the impact force on the side protection plate 9 drives the sleeve rod 18 to compress the second spring 20 to be slidably connected in the sleeve 19 for buffering and damping, and simultaneously, the included angle between the third connecting rods 21 is changed to drive the first moving block 22 to compress the third spring 24 to be slidably connected on the first sliding rod 23 for damping.
Preferably, this kind of multiple shock attenuation mode has promoted switch board 1's crashproof shock attenuation performance greatly above-mentioned, has realized the good protection to the switch board 1 outside.
As shown in fig. 1 to 3, 5 and 6, as a preferred embodiment of the present invention, the conductive set includes a first connection tube 28, a second sliding rod 29, a second connection tube 30, a piston plate 31, an expansion ball 32, a heat conduction plate 33, a first conductive block 34 and a second conductive block 35, the first connecting pipe 28 and the second connecting pipe 30 are both fixedly mounted on the inner wall of the power distribution cabinet 1, the second sliding bar 29 is slidably connected to the inside of the first connecting pipe 28 and the second connecting pipe 30 respectively, one end of the second sliding bar 29 is fixedly connected with a piston plate 31, the other end of the second sliding bar 29 is fixedly connected with a first conductive block 34, an expansion ball 32 is provided at one side of the piston plate 31, a heat conductive plate 33 is provided at one side of the expansion ball 32, a second conductive block 35 convenient for matching connection is arranged on the outer side of the first conductive block 34, and the second conductive block 35 is fixedly installed inside the second connection pipe 30.
Further, the delay group comprises a screw 36, a delay solenoid 37, a guide rod 38 and a fourth spring 39, one end of the screw 36 is rotatably connected to the first conductive block 34 through a mounting part, the screw 36 is in threaded connection with the delay solenoid 37, the delay solenoid 37 is fixedly connected to the inside of the second connecting pipe 30, the screw 36 is in rotational connection with the guide rod 38, and the guide rod 38 is fixedly connected to the inside of the delay solenoid 37 through the fourth spring 39.
Further, be provided with observation window 62 and hasp on the cabinet door 61, a plurality of vent 63 has been seted up in the outside of switch board 1.
Preferably, in this embodiment, the cabinet door 61 that sets up on the switch board 1 is convenient for maintain the inside of switch board 1, and the observation window 62 that sets up on the cabinet door 61 is convenient for observe the inside condition of switch board 1, and the vent 63 that sets up is convenient for carry out ventilation cooling to switch board 1.
Preferably, the insulating layer 26 that the inboard of switch board 1 set up carries out the thermal-insulated processing in the outside, and the dampproof course 27 of setting has avoided the inside humidity of switch board 1 to the emergence of the inside short circuit phenomenon of switch board 1 has been avoided.
Preferably, the heat insulation layer 26 may be made of one of a Dike aluminum foil heat insulation coiled material, heat insulation paper, a glass fiber cotton plate, a felt, a polyurethane foam plate, a centrifugal stripping fiber cotton, rock wool, a micro-nano heat insulation plate or an aerogel felt; the moisture-proof layer 27 can be subjected to moisture-proof treatment by adopting a combination mode of a vapor-proof film, a heat-insulating layer and a waterproof and breathable film.
Preferably, when the communication device 40 in the power distribution cabinet 1 is overheated, the expansion ball 32 is continuously expanded under the heat conduction effect of the heat conduction plate 33, the second slide bar 29 on the piston plate 31 is pushed to drive the first conductive block 34 to be slidably connected inside the second connection pipe 30, and when the first conductive block 34 is in contact with the second conductive block 35, the communication of the circuit of the heat dissipation mechanism inside the power distribution cabinet 1 is realized, so that the corresponding heat dissipation treatment is facilitated.
Preferably, the heat conducting plate 33 can be made of metal heat conducting material, such as metal heat conducting material of gold, silver, copper, iron, aluminum, etc.; heat conductive sheet materials such as heat conductive silicone sheets, heat conductive graphite sheets, nano carbon copper foils, heat conductive phase change materials, and the like; composite heat-conducting adhesive materials, such as heat-conducting silicone grease, heat-conducting gel, heat-conducting potting adhesive and other heat-conducting adhesive materials; other types of heat conducting materials, such as PC heat conducting plastic, ABS heat conducting plastic, plastic-clad aluminum heat conducting material, heat conducting phase change material, etc.
Preferably, the screw 36 compresses the fourth spring 39 and is screwed in the delay solenoid 37, when the temperature in the power distribution cabinet 1 is reduced, the expansion ball 32 contracts, and when the temperature is prevented from being uneven under the relationship of the screw 36 and the delay solenoid 37, the repeated connection path of the first conductive block 34 and the second conductive block 35 is disconnected, so that the repeated starting of the electrical appliance in the heat dissipation mechanism is prevented, and the electrical appliance in the heat dissipation mechanism is protected.
Preferably, the fourth spring 39 can slowly push the first conductive block 34 on the screw 36 away from the matching connection range with the second conductive block 35, so that the circuit connection is controllable, manual intervention for cooling operation is not needed, and the energy saving and emission reduction efficiency is high.
As shown in fig. 1 to 3 and 5 to 8, as a preferred embodiment of the present invention, the blowing set includes a heat dissipation box 42, fan blades 44, a first motor 45, a first connecting frame 46, a second moving block 47 and a movable connecting seat 48, the heat dissipation box 42 is fixedly connected inside the power distribution cabinet 1, the heat dissipation box 42 is provided with a dust screen 43, a protection frame 41 convenient for protection is provided at a connection position of the heat dissipation box 42 and the communication device 40, a heat insulation layer 26 and a moisture-proof layer 27 are provided outside the communication device 40, the fan blades 44 are fixedly connected to an output shaft of the first motor 45, the first motor 45 is fixedly mounted on the second moving block 47 through the first connecting frame 46, the second moving block 47 is slidably connected to the movable connecting seat 48, and the movable connecting seat 48 is fixedly connected inside the heat dissipation box 42.
Further, the reciprocating driving group comprises a fourth connecting rod 49, a fourth rotating shaft 50, a curved connecting block 51, a first gear 52, a fifth rotating shaft 53, a second gear 54, a sixth rotating shaft 55, a third gear 56, a fixed sleeve 57, a second connecting frame 58, a synchronizing member 59 and a second motor 60, one end of the fourth connecting rod 49 is rotatably connected to the second moving block 47 through the rotating shaft, the other end of the fourth connecting rod 49 is rotatably connected to the curved connecting block 51 through the fourth rotating shaft 50, one end of the fourth rotating shaft 50 is fixedly connected with the first gear 52, the curved connecting block 51 is rotatably connected with the fifth rotating shaft 53, the fifth rotating shaft 53 is fixedly connected with the second gear 54, the sixth rotating shaft 55 respectively penetrates through the third gear 56 and the fixed sleeve 57, one end of the sixth rotating shaft 55 is fixedly connected with the curved connecting block 51, the first gear 52 is engaged with the second gear 54, the second gear 54 is engaged with a third gear 56, the third gear 56 is fixedly connected to a fixed sleeve 57, the fixed sleeve 57 is fixedly connected to the inside of the heat dissipation box 42 through a second connecting frame 58, the sixth rotating shaft 55 is rotatably connected to an output shaft of a second motor 60 through a synchronizing member 59, and the second motor 60 is fixedly installed inside the heat dissipation box 42.
Preferably, the synchronizing member 59 includes, but is not limited to, a timing belt and a sprocket chain drive.
Preferably, in the present embodiment, when the heat dissipation process is performed in a circuit connection relationship, the first motor 45 operates to drive the fan blades 44 to rotate for performing the blowing heat dissipation operation.
Preferably, the second motor 60 operates under the synchronous driving action of the synchronizer 59 to drive the sixth rotating shaft 55 to drive the curved connecting block 51 to rotate, the second gear 54 is connected to the third gear 56 in a meshing rotation manner, the first gear 52 is connected to the second gear 54 in a meshing rotation manner, the fourth rotating shaft 50 on the first gear 52 drives the fourth connecting rod 49 to rotate, one end of the fourth connecting rod 49 drives the second moving block 47 to be in a reciprocating sliding connection with the movable connecting block 48, thus the fan blades 44 on the first motor 45 move in a reciprocating manner to perform blowing heat dissipation, the blowing heat dissipation range of the fan blades 44 is greatly enlarged, the heat dissipation effect is more remarkable, and the heat dissipation and cooling protection of the inside of the power distribution cabinet 1 is realized.
Preferably, the dust screen 43 is disposed for dust-proof treatment, which is convenient for operation and use.
The invention facilitates the protection of the power distribution cabinet 1 by arranging the top protection plate 5 and the side protection plate 9 at the outer side of the power distribution cabinet 1, enhances the protection performance of the outer sides of the top protection plate 5 and the side protection plate 9 by arranging a plurality of anti-collision protrusions 6, when the outer side of the power distribution cabinet 1 collides, the arranged vibration sensor 7 senses to enable the alarm 8 to buzz and flash to give an alarm under the action of the controller, thereby facilitating the reminding of workers of the collision, in addition, when the impact force is generated on the top of the power distribution cabinet 1 at the outside, the impact force drives the top protection plate 5 to respectively compress the first elastic part 3 and the first spring 4 to buffer and absorb the shock, thereby realizing the shock absorption protection on the top of the power distribution cabinet 1, when the side edge of the power distribution cabinet 1 collides, the side protection plate 9 is driven to press down to generate the change of the included angle between the first connecting rod 11 and the second connecting rod 12, and drives the first rotating shaft 10 to respectively slide on the side protection plate 9 and the connecting plate 64, the second connecting seat 15 is driven to compress the second elastic part 16 to be respectively connected to the inside of the power distribution cabinet 1 and the inside of the side protection plate 9 in a sliding manner for buffering and damping, the impact force on the side protection plate 9 drives the sleeve rod 18 to compress the second spring 20 to be connected to the sleeve 19 in a sliding manner for buffering and damping, and meanwhile, the included angle between the third connecting rods 21 is changed to drive the first moving block 22 to compress the third spring 24 to be connected to the first sliding rod 23 in a sliding manner for damping, so that the anti-collision and damping performance of the power distribution cabinet 1 is greatly improved in the multiple damping manner, and the good protection on the outer side of the power distribution cabinet 1 is realized; the cabinet door 61 arranged on the power distribution cabinet 1 is convenient for maintaining the interior of the power distribution cabinet 1, the observation window 62 arranged on the cabinet door 61 is convenient for observing the condition of the interior of the power distribution cabinet 1, the ventilation opening 63 is convenient for ventilating and radiating the power distribution cabinet 1, the heat insulation layer 26 arranged on the inner side of the power distribution cabinet 1 is used for carrying out heat insulation treatment on the outer side, the moisture in the interior of the power distribution cabinet 1 is avoided by the arranged moisture-proof layer 27, thereby avoiding the occurrence of the internal short circuit phenomenon of the power distribution cabinet 1, when the communication equipment 40 in the power distribution cabinet 1 is overheated, the expansion ball 32 is ceaselessly expanded under the heat conduction action of the heat conduction plate 33, the second slide bar 29 on the piston plate 31 is pushed to drive the first conductive block 34 to be slidably connected with the interior of the second connecting pipe 30, when the first conductive block 34 is contacted with the second conductive block 35, the communication of the heat dissipation mechanism circuit in the power distribution cabinet 1 is realized, and the corresponding heat dissipation treatment is convenient, at the moment, the screw 36 compresses the fourth spring 39 and is screwed in the delay solenoid 37, when the temperature in the power distribution cabinet 1 is reduced, the expansion ball 32 contracts, and when the temperature is prevented from being uneven under the relationship of the screw 36 and the delay solenoid 37, the repeated connection path and the disconnection of the first conductive block 34 and the second conductive block 35 avoid the repeated starting of the electric appliance in the heat dissipation mechanism, the electric appliance in the heat dissipation mechanism is protected, and the arranged fourth spring 39 can slowly push the first conductive block 34 on the screw 36 to be far away from the matching connection range with the second conductive block 35, so that the circuit connection is controllable, the manual intervention cooling operation is not needed, and the energy conservation and emission reduction efficiency is high; when heat dissipation treatment is performed under the relation of circuit communication, the first motor 45 operates to drive the fan blades 44 to rotate for blowing heat dissipation operation, and simultaneously the second motor 60 operates under the synchronous driving action of the synchronizer 59 to drive the sixth rotating shaft 55 to drive the curved connecting block 51 to rotate, so that the second gear 54 is connected to the third gear 56 in a meshing rotation manner and the first gear 52 is connected to the second gear 54 in a meshing rotation manner, the fourth rotating shaft 50 on the first gear 52 drives the fourth connecting rod 49 to rotate, one end of the fourth connecting rod 49 drives the second moving block 47 to be connected to the movable connecting seat 48 in a reciprocating sliding manner, thereby realizing the fan blades 44 on the first motor 45 to perform reciprocating movement for blowing heat dissipation, greatly improving the blowing heat dissipation range of the fan blades 44, achieving more remarkable heat dissipation effect, realizing heat dissipation and cooling protection for the heat dissipation inside the power distribution cabinet 1, and performing dust prevention treatment on the set dust screen 43, is convenient for operation and use.
It should be noted that, in this application, all the components are general standard components or components known to those skilled in the art, which effectively solve the problem that the existing low-voltage fixed power distribution cabinet has no anti-collision function and is inconvenient for heat dissipation protection.
Although several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. Fixed switch board of low pressure with anticollision protect function, including switch board (1), fixed mounting has communication equipment (40) in switch board (1), its characterized in that, the top of switch board (1) is provided with first anticollision institution, the outside of switch board (1) is provided with second anticollision institution, second anticollision institution includes first anticollision group and second anticollision group, be provided with heat dissipation control mechanism in switch board (1), heat dissipation control mechanism includes electric conduction group and time delay group, electric conduction group includes first connecting pipe (28), second slide bar (29), second connecting pipe (30), piston plate (31), inflation ball (32), heat-conducting plate (33), first electric conduction piece (34) and second electric conduction piece (35), one side of piston plate (31) is provided with inflation ball (32), one side of inflation ball (32) is provided with heat-conducting plate (33), the outside of first conducting block (34) is provided with second conducting block (35) convenient to cooperate and connect, second conducting block (35) fixed mounting is in the inside of second connecting pipe (30), the time delay group includes screw rod (36), time delay solenoid (37), guide bar (38) and fourth spring (39), the one end of screw rod (36) is passed through the installed part and is rotated and connect in first conducting block (34), threaded connection has time delay solenoid (37) on screw rod (36), the top of communications facilities (40) is provided with heat dissipation mechanism, heat dissipation mechanism is including blowing the group and reciprocating drive group, blow the group with reciprocating drive group is connected, reciprocating drive group includes fourth connecting rod (49), fourth pivot (50), bent type connecting block (51), first gear (52), fifth pivot (53), second gear (54), A sixth rotating shaft (55), a third gear (56), a fixed sleeve (57), a second connecting frame (58), a synchronous piece (59) and a second motor (60), one end of the fourth rotating shaft (50) is fixedly connected with a first gear (52), the curved connecting block (51) is rotatably connected with a fifth rotating shaft (53), a second gear (54) is fixedly connected to the fifth rotating shaft (53), the sixth rotating shaft (55) is respectively arranged by penetrating through a third gear (56) and a fixed sleeve (57), one end of the sixth rotating shaft (55) is fixedly connected with a curved connecting block (51), the first gear (52) is meshed with a second gear (54), the second gear (54) is meshed with a third gear (56), the third gear (56) is fixedly connected to the fixed sleeve (57), and a cabinet door (61) is hinged to the outer side of the power distribution cabinet (1).
2. The fixed switch board of low pressure with anticollision protect function according to claim 1, characterized in that, first anticollision institution includes first connecting seat (2), first elastic component (3), first spring (4) and top guard plate (5), the top fixedly connected with of switch board (1) has a plurality of first connecting seat (2), the junction of first connecting seat (2) and top guard plate (5) is provided with a plurality of first elastic component (3) and first spring (4), first spring (4) fixed ring is in the outside of first elastic component (3).
3. The low-voltage fixed power distribution cabinet with the anti-collision protection function according to claim 2, wherein the first anti-collision group comprises a connecting plate (64), a first rotating shaft (10), a first connecting rod (11), a second connecting rod (12), a second rotating shaft (13), a third rotating shaft (14), a second connecting seat (15), a second elastic member (16) and a third connecting seat (17), the first rotating shaft (10) is respectively connected to the side protection plate (9) and the connecting plate (64) in a sliding manner, the connecting plate (64) is fixedly connected to the power distribution cabinet (1), two ends of the first connecting rod (11) are respectively connected to the first rotating shaft (10) in a rotating manner, the first connecting rod (11) is connected to the second connecting rod (12) in a rotating manner through the second rotating shaft (13), two ends of the second connecting rod (12) are respectively connected to the side protection plate (9) and the connecting plate (64) in a rotating manner through the third rotating shaft (14), one end of the first rotating shaft (10) is rotatably connected with a second connecting seat (15), the second connecting seat (15) is fixedly connected with a third connecting seat (17) through a second elastic piece (16), and the third connecting seat (17) is fixedly connected onto the power distribution cabinet (1).
4. The fixed switch board of low voltage with crashworthy protection function according to claim 3, wherein the second crashworthy group comprises a loop bar (18), a sleeve (19), a second spring (20), a third connecting rod (21), a first movable block (22), a first sliding rod (23), a third spring (24) and a fourth connecting seat (25), the loop bar (18) is fixedly connected to the side protection plate (9), the loop bar (18) is slidably connected in the sleeve (19), the second spring (20) is arranged at the connection position of the loop bar (18) and the sleeve (19), the sleeve (19) is fixedly connected to the switch board (1), one end of the third connecting rod (21) is hinged to the outer side of the loop bar (18), the other end of the third connecting rod (21) is hinged to the first movable block (22), and the first movable block (22) is slidably connected to the first sliding rod (23), the first sliding rod (23) is fixedly installed on the power distribution cabinet (1) through a fourth connecting seat (25), a third spring (24) is arranged on one side of the first moving block (22), and a plurality of anti-collision protrusions (6) convenient to protect are arranged on the side protection plate (9) and the top protection plate (5).
5. The fixed switch board of low pressure with crashproof protect function of claim 1, characterized in that, first connecting pipe (28) and second connecting pipe (30) are all fixed mounting on the inner wall of switch board (1), second slide bar (29) sliding connection is in the inside of first connecting pipe (28) and second connecting pipe (30) respectively, one end fixedly connected with piston board (31) of second slide bar (29), the other end fixedly connected with first conducting block (34) of second slide bar (29).
6. The fixed switch board of low voltage with anti-collision protection function according to claim 5, characterized in that the delay solenoid (37) is fixedly connected to the inside of the second connecting pipe (30), the screw (36) is rotatably connected with a guide rod (38), and the guide rod (38) is fixedly connected to the inside of the delay solenoid (37) through a fourth spring (39).
7. The low-voltage fixed power distribution cabinet with the anti-collision protection function according to claim 1, wherein the blowing set comprises a heat dissipation box (42), fan blades (44), a first motor (45), a first connecting frame (46), a second moving block (47) and a movable connecting seat (48), the heat dissipation box (42) is fixedly connected inside the power distribution cabinet (1), a dust screen (43) is arranged on the heat dissipation box (42), a protection frame (41) convenient for protection is arranged at the joint of the heat dissipation box (42) and the communication equipment (40), a heat insulation layer (26) and a moisture-proof layer (27) are arranged on the outer side of the communication equipment (40), the fan blades (44) are fixedly connected with an output shaft of the first motor (45), the first motor (45) is fixedly mounted on the second moving block (47) through the first connecting frame (46), and the second moving block (47) is slidably connected on the movable connecting seat (48), the movable connecting seat (48) is fixedly connected to the inside of the heat dissipation box (42).
8. The low-voltage fixed power distribution cabinet with the anti-collision protection function according to claim 7, wherein one end of the fourth connecting rod (49) is rotatably connected to the second moving block (47) through a rotating shaft, the other end of the fourth connecting rod (49) is rotatably connected to the curved connecting block (51) through a fourth rotating shaft (50), the fixing sleeve (57) is fixedly connected to the inside of the heat dissipation box (42) through a second connecting frame (58), the sixth rotating shaft (55) is rotatably connected to an output shaft of a second motor (60) through a synchronizing member (59), and the second motor (60) is fixedly installed inside the heat dissipation box (42).
9. The fixed switch board of low pressure with crashproof protect function of claim 1, characterized by, be provided with the vibrations sensor (7) of being convenient for respond to vibrations and the alarm (8) of being convenient for report to the police on switch board (1).
10. The fixed switch board of low pressure with crashproof protect function of claim 1, characterized in that, be provided with observation window (62) and hasp on cabinet door (61), a plurality of vent (63) have been seted up to the outside of switch board (1).
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| CN202111410066.4A CN113851969B (en) | 2021-11-25 | 2021-11-25 | Low-voltage fixed power distribution cabinet with anti-collision protection function |
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| CN202111410066.4A CN113851969B (en) | 2021-11-25 | 2021-11-25 | Low-voltage fixed power distribution cabinet with anti-collision protection function |
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| CN113851969A true CN113851969A (en) | 2021-12-28 |
| CN113851969B CN113851969B (en) | 2022-02-15 |
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