CN118099976B - Power distribution cabinet capable of preventing fire from spreading - Google Patents
Power distribution cabinet capable of preventing fire from spreading Download PDFInfo
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- CN118099976B CN118099976B CN202410465673.8A CN202410465673A CN118099976B CN 118099976 B CN118099976 B CN 118099976B CN 202410465673 A CN202410465673 A CN 202410465673A CN 118099976 B CN118099976 B CN 118099976B
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- energy storage
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- 238000009826 distribution Methods 0.000 title claims abstract description 44
- 238000003892 spreading Methods 0.000 title abstract description 7
- 230000007480 spreading Effects 0.000 title abstract description 7
- 238000004146 energy storage Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000009471 action Effects 0.000 claims abstract description 35
- 230000000670 limiting effect Effects 0.000 claims description 41
- 230000005540 biological transmission Effects 0.000 claims description 32
- 238000005520 cutting process Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 16
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 240000004282 Grewia occidentalis Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
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Classifications
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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
- H02B1/46—Boxes; Parts thereof or accessories therefor
- H02B1/48—Mounting of devices therein
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- 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
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fuses (AREA)
Abstract
The application discloses a power distribution cabinet capable of preventing fire from spreading, which comprises a power distribution box, a buckling mechanism, an energy storage piece and a fuse piece, wherein an electric element is arranged in the power distribution box through the buckling mechanism; the fuse is suitable for enabling the buckling mechanism to keep a locking state of the electrical element when no fire disaster occurs; when a fire disaster occurs, the fusing element is suitable for breaking, so that the locking mechanism is used for unlocking the electrical element, and then the electrical element is suitable for being disengaged from the distribution box under the elastic action of the energy storage element. The application has the beneficial effects that: the electrical components can be quickly installed and fixed through the buckling mechanism, so that the installation and disassembly efficiency of the electrical components is greatly improved; when a fire disaster occurs, the energy storage piece can pop up under the action of the elasticity and be separated from the distribution box, so that the spread and expansion of the fire disaster can be prevented.
Description
Technical Field
The application relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet capable of preventing fire from spreading.
Background
A power distribution cabinet is a power distribution device used in a power system for controlling and distributing power. It is typically installed in a power system of a building or industrial facility for receiving power from a main or substation and distributing it to different electrical devices or circuits.
Many electronic components in the power distribution cabinet are installed in parallel, such as relays, contactors, circuit breakers and the like, in order to reasonably utilize the space in the power distribution cabinet, the electronic components have the following defects in the process of installation and use: (1) When one of the electrical components is overloaded or short-circuited, fire is caused, and although the existing power distribution cabinet has a fire alarm function, a worker needs a certain time in the process of going to the power distribution cabinet, and the fire can spread to other electrical components in the time, so that the fire is further expanded, and immeasurable loss is brought; (2) The existing electrical components are all installed through bolts, so that the installation is complicated; therefore, a power distribution cabinet capable of preventing fire from spreading is provided to solve the technical problems.
Disclosure of Invention
One of the objects of the present application is to provide a power distribution cabinet with fire spread prevention.
In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a switch board with prevent conflagration to spread, includes block terminal, buckle mechanism, energy storage spare and fuse, install electrical components through buckle mechanism in the block terminal, the energy storage spare is installed in buckle mechanism and by buckle mechanism carries out extrusion deformation, the fuse with buckle mechanism carries out the connection cooperation; the fuse is adapted to cause the catch mechanism to remain in a locked state with the electrical component in the absence of a fire; in the event of a fire, the fuse element is adapted to break, so that the catch mechanism releases the locking of the electrical element, which is then adapted to disengage from the electrical box under the action of the spring force of the energy storage element.
Preferably, the fastening mechanism comprises a fastening assembly and a transmission assembly, the electrical element is installed in the distribution box through the fastening assembly, the input end of the transmission assembly is connected with the fuse, and the output end of the transmission assembly is connected with the fastening assembly; in the event of a fire, the fuse is adapted to pass through the transmission assembly to actuate the catch assembly to unlock the electrical component.
Preferably, the buckle assembly comprises a base, a plurality of clamping cylinders, a plurality of clamping columns and a plurality of limiting pins, wherein the base is fixedly installed in the power distribution cabinet, the clamping cylinders are installed in the base, the energy storage piece is positioned in the corresponding clamping cylinders, the limiting pins are elastically and slidably installed in the clamping cylinders and are connected with the output end of the transmission assembly, and the clamping columns are installed at the bottom ends of the electrical elements and are externally provided with limiting holes matched with the limiting pins; when the electric element is installed, the clamping column is suitable for being matched with the clamping cylinder, then the limiting pin is suitable for being matched with the limiting hole under the driving of the fusing piece and the transmission assembly, so that the clamping column is locked in the clamping cylinder, and the energy storage piece is suitable for being in a compression deformation state under the extrusion of the clamping column.
Preferably, the transmission assembly comprises a turntable and a plurality of connecting rods, the turntable is rotatably arranged on the base and connected with the fusing piece, and two ends of each connecting rod are respectively in hinged fit with the turntable and the corresponding limiting pin; when a fire disaster occurs, the fusing piece is suitable for releasing the limit of the turntable, so that the limit pin is synchronously away from the limit hole under the action of the elastic force and the connecting rod.
Preferably, the transmission assembly comprises a gear, a first rack and a second rack, the gear is rotatably mounted on the base through a rotating shaft, the rotating shaft is connected with the fuse element through a crank, the first rack and the second rack are respectively and correspondingly mounted on the limiting pin, and the first rack and the second rack are respectively meshed with two sides of the gear; when a fire disaster occurs, the fusing piece is suitable for releasing the limit of the rotating shaft, so that the limit pin is synchronously away from the limit hole under the action of elasticity and the meshing action of the gear and the rack.
Preferably, the fusing piece includes the fusing rope, the first end of fusing rope with drive assembly's input is connected, the second end of fusing rope with the connection can be dismantled to the base, just the fusing rope cup joint in electrical components's outside and to electrical components carries out spacing locking.
Preferably, tangential components are arranged on two sides of the electrical element; when the electrical element is disengaged from the base under the action of the energy storage element, the tangent assembly is suitable for cutting off the connection line of the electrical element.
Preferably, a plurality of clamps for limiting the connecting line are arranged at the positions, corresponding to the two sides of the electrical element, of the top end of the base, notches are arranged beside the clamps, corresponding to the top end of the base, and the tangent line assembly comprises a pair of cutters which are arranged at the two sides of the electrical element; when no fire occurs, the cutter is positioned in the notch; in case of fire, the cutter is suitable for being driven by the electrical components to extend out of the notch and cut off the connecting line.
Preferably, the corresponding wire clamps at the wire holes of the electrical element are provided with a pair, the notch is positioned between the two wire clamps, and the opening of the wire clamp is positioned at the side part of the wire clamp.
Preferably, a fireproof box is arranged at the lower end of the inner side of a box door of the distribution box, and a cover door is elastically and rotatably arranged at the top end of the fireproof box; when the electrical element is disengaged from the base under the action of the energy storage piece, the electrical element is suitable for falling under the action of gravity and then falls into the fireproof box through the cover door; the door is then adapted to return under spring force and to place the fire box in a closed condition.
Compared with the prior art, the application has the beneficial effects that:
According to the invention, the buckling mechanism, the energy storage piece and the fusing piece are arranged, so that the electrical components can be quickly installed and fixed through the buckling mechanism, and the installation and disassembly efficiency of the electrical components is greatly improved; when a fire disaster occurs, the fused fusing piece drives the buckling mechanism to unlock the electrical element, and then the fusing piece pops up and is separated from the distribution box under the elastic action of the energy storage piece, so that the spread and expansion of the fire disaster are prevented.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the electrical components of the present invention when they are arranged in parallel.
Fig. 3 is a schematic view of the partial structure of fig. 2 according to the present invention.
Fig. 4 is a schematic view of the electrical component of the present invention when disassembled.
Fig. 5 is a schematic view of a fastening mechanism according to the present invention.
Fig. 6 is an enlarged schematic view of the structure of the present invention at a.
Fig. 7 is a partially enlarged schematic construction of the present invention.
Fig. 8 is a schematic view of the structure of the transmission assembly according to the first embodiment of the present invention when moving.
Fig. 9 is a schematic structural view of a second embodiment of the transmission assembly of the present invention.
Fig. 10 is an enlarged schematic view of the structure of the present invention at B.
Fig. 11 is a schematic view of the structure of the electrical component of the present invention when installed.
Fig. 12 is a schematic view showing the structure of the electrical component of the present invention when it is separated by being ejected in a fire.
Fig. 13 is a schematic view of the fire box structure of the present invention.
Fig. 14 is a schematic view showing the structure of the electrical component of the present invention when it is ejected and separated and falls into the fire-proof box.
In the figure: 1. a distribution box; 2. an electrical component; 3. a fire-resistant box; 4. a buckle mechanism; 401. a clasp assembly; 4011. a base; 4012. a clamping cylinder; 4013. a clamping column; 4014. a limiting pin; 4015. a limiting hole; 402. a transmission assembly; 4021. a turntable; 4022. a connecting rod; 4023. a gear; 4024. a first rack; 4025. a second rack; 5. a fuse; 501. fusing the rope; 6. a connection line; 7. a thread cutting assembly; 701. a cutter; 8. a wire clamp; 9. a notch; 10. a clasp; 11. a clamping hook; 12. an energy storage member; 13. a crank; 14. and (5) covering the door.
Detailed Description
The present application will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present application, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.
It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
In one preferred embodiment of the application, as shown in fig. 1 to 14, a power distribution cabinet with fire disaster prevention function comprises a power distribution box 1, a buckling mechanism 4, an energy storage piece 12 and a fuse piece 5, wherein an electric element 2 is installed in the power distribution box 1 through the buckling mechanism 4, the energy storage piece 12 is installed in the buckling mechanism 4 and is extruded and deformed by the buckling mechanism 4, the fuse piece 5 is connected and matched with the buckling mechanism 4, and the energy storage piece 12 preferably adopts an energy storage spring.
It can be appreciated that the electrical component 2 can be quickly installed and fixed by the fastening mechanism 4, so that the efficiency of installing and detaching the electrical component 2 can be greatly improved compared with the original installation mode by bolts, and more manpower and time cost can be saved.
On the other hand, by arranging the fuse 5, the name implies that the fuse 5 is an object that is broken at high temperature, and when no fire occurs, the fuse 5 can cause the fastening mechanism 4 to maintain the locking state of the electrical component 2; when a fire disaster occurs, namely, the fuse element 5 breaks under the high temperature action of the electrical element 2, and the broken fuse element 5 loses the restriction effect on the buckling mechanism 4, so that the buckling mechanism 4 can unlock the electrical element 2 under the action of the fuse element 4, and the electrical element 2 is in a free state, but the energy storage element 12 is in a deformation energy storage state under the action of the buckling mechanism 4, so that the unlocked electrical element 2 can pop up under the elastic action of the energy storage element 12 and is disengaged from the distribution box 1, and the electrical element 2 after fire can not spread the fire on the adjacent electrical element, thereby further expanding the fire condition is prevented, precious time is provided for workers to arrive at the scene, and loss caused by the fire condition is also reduced.
In one embodiment of the present application, as shown in fig. 4, the fastening mechanism 4 includes a fastening assembly 401 and a transmission assembly 402, the electrical component 2 is installed in the electrical box 1 through the fastening assembly 401, an input end of the transmission assembly 402 is connected with the fuse 5, and an output end of the transmission assembly 402 is connected with the fastening assembly 401.
It can be understood that, when no fire occurs (in a normal state), the buckle assembly 401 locks and installs the electrical component 2 under the action of the transmission assembly 402 and the fuse 5; when a fire occurs, the fusing element 5 is broken, and the buckle assembly 401 is driven to unlock the electrical element 2 by the transmission assembly 402, so that the electrical element 2 can be ensured to be separated by the energy storage element 12, and further spread of the fire is avoided.
The specific structure of the buckle assembly 401 is not limited by the present application, and only one specific structure is provided below for reference:
As shown in fig. 4 to 6, the buckle assembly 401 includes a base 4011, a plurality of card barrels 4012, a plurality of card columns 4013 and a plurality of limit pins 4014, the base 4011 is fixedly installed in a power distribution cabinet, the card barrels 4012 are installed on the base 4011, the energy storage component 12 is located inside the corresponding card barrel 4012, the limit pins 4014 are elastically and slidably installed on the card barrels 4012 through springs and are connected with the output end of the transmission assembly 402, and the card columns 4013 are installed at the bottom end of the electrical component 2 and are externally provided with limit holes 4015 adapted to the limit pins 4014.
It can be understood that, if the limit pin 4014 is not subjected to other external forces in the normal state, that is, the limit pin 4014 is located in the external state of the card cylinder 4012 under the action of the elastic force of the spring, that is, interference is not caused to the insertion of the card post 4013 into the card cylinder 4012; when the electric element 2 is installed, firstly, the clamping column 4013 at the bottom end of the electric element 2 is inserted into the clamping cylinder 4012 on the base 4011, and the energy storage element 12 (energy storage spring) is compressed and deformed by the clamping column 4013; after the clamping column 4013 is clamped in place, namely, a limiting hole 4015 on the clamping column 4013 and a limiting pin 4014 on the clamping cylinder 4012 are in a corresponding state, then the clamping column 4013 is driven by the fuse 5 and the transmission component 402 to move and be inserted into the limiting hole 4015, and further locking of the clamping column 4013 can be completed, namely, installation of the electrical element 2 is completed.
It should be noted that, the number of the clamping columns 4013 and the number of the clamping cylinders 4012 are the same, and the clamping columns 4013 and the clamping cylinders 4012 are also main matching structures for butt joint installation, the specific number of the clamping columns 4013 and the specific number of the clamping cylinders 4012 are not specifically limited, and the clamping columns 4013 and the clamping cylinders 4012 can be set by those skilled in the art according to actual situations; in the prior art, when the electrical component 2 is installed, the four corners of the electrical device are usually limited and fixed by using four-corner positioning installation modes, namely, bolts; therefore, the number of the clamping columns 4013 and the clamping cylinders 4012 in the application is preferably four, so that the number of the installation components can be minimized on the premise of ensuring the installation stability, and the clamping columns 4013 and the clamping cylinders 4012 are distributed in rectangular four corners as shown in fig. 4 and 5, and therefore, the following specific embodiments are also described by taking four as examples.
In one embodiment of the present application, as shown in fig. 4-10, the transmission assembly 402 may be configured in a variety of ways, including but not limited to the following two ways:
Structure one (as shown in fig. 5 and 8): the transmission assembly 402 includes a rotating disc 4021 and a plurality of connecting rods 4022, the rotating disc 4021 is rotatably mounted at the top end of the base 4011 and connected with the fuse 5, and two ends of the connecting rods 4022 are respectively hinged to the rotating disc 4021 and the corresponding limiting pins 4014.
Specifically, as shown in fig. 8 (a), the limit pin 4014 moves under the action of the turntable 4021, the connecting rod 4022 and the fuse element 5 and stretches into the cartridge 4012, and then cooperates with the limit hole 4015 on the clip column 4013, and the spring on the limit pin 4014 is in a tensile or compression deformation state; when a fire breaks out, the fuse 5 will be blown, and the limit to the rotating disc 4021 will be released, so the limit pins 4014 will be far away from the direction of the limit holes 4015 under the reaction force of the springs, and of course, due to the action of the connecting rod 4022 and the rotating disc 4021, all the limit pins 4014 will be far away from the limit holes 4015 synchronously, so that all the clamping posts 4013 can be guaranteed to be unlocked, as shown in (b) of fig. 8.
Structure two (as shown in fig. 9 and 10): the transmission assembly 402 includes a gear 4023, a first rack 4024 and a second rack 4025, the gear 4023 is rotatably installed on the base 4011 through a rotating shaft, the rotating shaft is connected with the fuse 5 through a crank 13, the first rack 4024 and the second rack 4025 are respectively and correspondingly installed on the limiting pin 4014, and the first rack 4024 and the second rack 4025 are respectively meshed with two sides of the gear 4023.
Specifically, since the cartridge 4013 and the cartridge 4012 adopt four groups and are distributed in a rectangular shape, the gears 4023 may be a pair, and the first rack 4024 and the second rack 4025 may also be a pair, as shown in fig. 10, and the first rack 4024 and the second rack 4025 may be meshed with the upper and lower sides of the corresponding gears 4023. Before the electrical component 2 is not installed, the limiting pin 4014 is located outside the clamping cylinder 4012 under the action of the elastic force of the spring, the crank 13 is located below, and the first rack 4024 and the second rack 4025 are also located close to each other; when the electrical component 2 is installed, the crank 13 is pulled upwards to be in an upward state through the fuse element 5, at the moment, the rotating shaft rotates anticlockwise, the gear 4023 acts on the first rack 4024 and the second rack 4025, the first rack 4024 and the second rack 4025 are kept away synchronously, namely the limiting pin 4014 moves and is inserted into the limiting hole 4015, and then the installation of the electrical component 2 is completed.
When a fire disaster occurs, the fuse 5 will be blown, and in the same way, otherwise, the fuse 5 will release the limit of the rotating shaft, so the limit pin 4014 will be far away from the direction of the limit hole 4015 under the reaction force of the spring, of course, all the limit pins 4014 will be far away from the limit hole 4015 synchronously under the meshing action of the gear 4023 and the racks (the first rack 4024 and the second rack 4025), and then all the clamping posts 4013 can be guaranteed to be unlocked.
It should be noted that both structures can meet the actual requirements, and those skilled in the art can select according to the actual situation.
In one embodiment of the present application, as shown in fig. 5 and 6, the fuse 5 may be a fuse rope 501, a first end of the fuse rope 501 is connected to an input end of the transmission component 402, a second end of the fuse rope 501 is detachably connected to the base 4011, and the fuse rope 501 is sleeved on the outside of the electrical component 2 and performs limit locking on the electrical component 2.
Specifically, the second end of the fusing rope 501 may be provided with a snap ring 10, and a hook 11 adapted to the snap ring 10 may be disposed at the top end of the base 4011, so as to implement quick detachable matching between the fusing rope 501 and the base 4011.
In order to facilitate a detailed understanding of how the electrical component 2 is detached from the fire and the electrical component 2 is quickly installed, the following description of the working principle thereof will be given, by taking the structure of the transmission assembly 402 as an example, concretely described:
When the electrical component 2 is mounted: in the initial state, as shown in fig. 8 (b), all the limit pins 4014 are located outside the card cylinder 4012 under the action of the spring force, the card column 4013 at the bottom end of the electric element 2 is first inserted into the card cylinder 4012 on the base 4011, the energy storage element 12 (energy storage spring) is compressed and deformed by the card column 4013, and after the card column 4013 is clamped in place, namely, the limit holes 4015 on the card column 4013 and the limit pins 4014 on the card cylinder 4012 are in corresponding states; then we pull the second end of the fusing rope 501, wrap the fusing rope 501 outside the electrical component 2, and match the snap ring 10 of the second end of the fusing rope 501 with the hook 11, and of course, it is best to provide a groove on the surface of the electrical component 2, which is matched with the fusing rope 501, so as to limit the fusing rope 501 to improve the installation stability. In the process of pulling the fusing rope 501 to be in a straightened state, the turntable 4021 rotates at this time, the turntable 4021 acts on the connecting rod 4022, the connecting rod 4022 acts on the limiting pins 4014, and all the limiting pins 4014 can be inserted into the limiting holes 4015 outside the clamping columns 4013, so that the installation of the electrical element 2 is completed, as shown in fig. 11.
Meanwhile, the electrical element 2 can realize double limiting of the electrical element 2 under the matching of the limiting pin 4014 and the limiting hole 4015 and the cladding effect of the fusing rope 501, so that the stability is greatly improved; meanwhile, the fusing rope 501 is wrapped around the outer part of the electrical element 2, so that the electrical element 2 is easier to break when a fire occurs, and the protection mechanism of the electrical element 2 is easier to trigger when the fire occurs.
In the event of a fire in the event of overload or short-circuit of the electrical element 2: because the fusing rope 501 is wrapped outside the electrical component 2, as shown in fig. 12, the fusing rope 501 is easy to break under the action of high temperature, and the broken fusing rope 501 loses the limit of the rotary disc 4021, so that the limit pins 4014 are far away from the limit holes 4015 under the reaction force of the springs, and of course, under the action of the connecting rod 4022 and the rotary disc 4021, all the limit pins 4014 are far away from the limit holes 4015 synchronously, so that all the clamping posts 4013 can be guaranteed to be unlocked, namely the electrical component 2 is in a free state; at this time, since the energy storage member 12 is compressed and deformed to have a certain energy, the electrical component 2 is instantaneously ejected out of the base 4011 under the elastic force of the energy storage member 12, and is separated from the adjacent electrical component, so as to prevent the spread of fire.
As shown in fig. 10, when the transmission assembly 402 adopts the second structure, a simple description is provided here:
when the electrical component 2 is mounted: the crank 13 connected with the fusing rope 501 is initially located at a lower position, when the fusing rope 501 is pulled during installation, the crank 13 rotates from the lower position to an upper position, at the moment, the rotating shaft rotates anticlockwise, the gear 4023 acts on the first rack 4024 and the second rack 4025, the first rack 4024 and the second rack 4025 are synchronously far away, namely, the limiting pin 4014 moves and is inserted into the limiting hole 4015, and then the installation of the electrical element 2 is completed.
In the event of a fire in the event of overload or short-circuit of the electrical element 2: the fusing rope 501 breaks and loses the limit effect on the crank 13 and the rotating shaft, so that all limit pins 4014 are synchronously far away from the limit holes 4015 under the meshing effect of the gear 4023 and racks (a first rack 4024 and a second rack 4025), and all clamping columns 4013 can be guaranteed to be unlocked; so as to be ejected by the energy storage member 12.
Based on the above embodiments, there may be such problems in use: the electric element 2 is known to be matched with the connecting circuit 6 for use in specific use; that is, the ejection force of the energy storage element 12 is greater than the mating force between the electrical component 2 and the connection line 6, so that the electrical component 2 can be completely ejected and separated; however, if a highly resilient energy storage element 12 is used, this can present a certain difficulty in installation.
In order to solve the above-mentioned technical problem, one embodiment of the present application, as shown in fig. 3, is provided with a tangential component 7 on both sides of the electrical component 2. It should be noted that, when the electrical component 2 is disengaged from the base 4011 under the action of the energy storage element 12, the wire cutting assembly 7 can cut off the connection circuit 6 of the electrical component 2, so that the electrical component 2 is disengaged more smoothly, and fire spread caused by the connection circuit 6 can be prevented.
As a further description of the above embodiments: as shown in fig. 3 and 7, a plurality of clips 8 for limiting the connection line 6 are provided at both sides of the top end of the base 4011 corresponding to the electrical component 2, and notches 9 are provided at the top end of the base 4011 corresponding to the sides of the clips 8, and the wire cutting assembly 7 includes a pair of cutters 701 mounted at both sides of the electrical component 2.
It should be noted that the wire clip 8 may limit the connection circuit 6, so that the connection circuit 6 may be orderly arranged; when no fire occurs, the cutter 701 is positioned in the notch 9, i.e. no influence is caused on the connecting line 6; when a fire disaster occurs, the electrical component 2 pops up, and the cutter 701 is driven by the electrical component 2 to extend from the notch 9, and the cutter 701 is located near the wire clip 8, so that the connecting wire 6 has a fixed point, and the extending cutter 701 can easily cut off the connecting wire 6.
Further, a pair of corresponding clips 8at the wire holes of the electric element 2 is preferably employed, with the notch 9 being located between the two clips 8, and the opening of the clip 8 being located at a side position of the clip 8. Firstly, the wire clamp 8 adopts a pair of pairs, so that two fixing points of the connecting line 6 are arranged, and the two fixing points are positioned at two sides of the cutter 701, so that the cutter 701 can more easily cut off the connecting line 6 when extending out; the upward movement of the cutter 701 has a pressing force on the connecting wire 6, if the opening of the wire clamp 8 is located at the upper position, the situation that the connecting wire 6 and the wire clamp 8 are forcibly separated may occur, so that the opening of the wire clamp 8 may be located at the side position of the wire clamp 8, and thus when the connecting wire 6 moves upward, the wire clamp 8 has a forced limiting effect on the connecting wire 6 moving upward, so that the cutting of the connecting wire 6 is smoother.
It should be noted that, a certain active space may be reserved when the connection line 6 is in butt joint with the electrical component 2, as shown in fig. 9 and 11, that is, the connection line 6 between the connection point of the connection line 6 and the electrical component 2 and the connection point between the connection line 6 and the nearest wire clip 8 may be arranged in a bending manner; it will be appreciated that, at the moment when the electrical component 2 initially pops up, the limiting point between the connection circuit 6 and the wire clip 8 will not cause resistance to the pop up, so that the electrical component 2 pops up smoothly and the connection circuit 6 is cut off smoothly, and after the electrical component is cut off, the connection circuit 6 and the wire clip 8 are still engaged, but at this time, the engagement area between the connection circuit 6 and the wire clip 8 will be very short, so that the connection circuit 6 will be separated from the wire clip 8 easily under the action of elasticity and inertia.
Based on the above embodiment, the electrical component 2 after separation and ejection will fall into the bottom end position of the distribution box 1 after separation from the base 4011, so no electrical device should be installed at the inner lower end position of the distribution box 1, i.e. the inner lower end of the distribution box 1 is an idle area, so that the electrical component 2 after falling will not spread to other electrical devices, but it cannot be excluded that the electrical component 2 after firing will cause fire spreading, and after all, the risk coefficient of fire is still high in the distribution box 1.
Therefore, in order to solve the above-mentioned technical problems, in one embodiment of the present application, as shown in fig. 1 and 14, a fire-proof box 3 is installed at the lower end of the inner side of the door of the distribution box 1, and a cover door 14 is installed at the top end of the fire-proof box 3 through elastic rotation of a torsion spring.
Specifically, as shown in fig. 14, when the electrical component 2 is disengaged from the base 4011 under the action of the energy storage member 12, the electrical component 2 will drop under the action of gravity, the dropped electrical component 2 will first fall on the cover door 14, the cover door 14 will rotate downward and open under the impact force of the electrical component 2, and when the electrical component 2 falls into the fire-proof box 3, the cover door 14 will then reset under the action of elastic force, so that the fire-proof box 3 is in a sealed state.
It should be noted that the fireproof box 3 may be made of fireproof materials, or the interior of the fireproof box 3 may be provided with a fireproof coating; when the electrical element 2 on fire falls into the fireproof box 3, the fireproof box 3 is in a closed state and is isolated from the outside, so that on one hand, the fire can be further prevented from spreading, on the other hand, the fireproof box 3 is isolated from the outside air, and the supply of oxygen is reduced, so that the electrical element 2 on fire can be gradually extinguished, and further the effect of extinguishing the fire is achieved. Of course, the fireproof box 3 can also be used for placing some maintenance tools in normal use, so that the workers can conveniently take the tools.
The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.
Claims (6)
1. A power distribution cabinet having fire spread prevention, comprising:
A distribution box;
the electric appliance element is arranged in the distribution box through the buckling mechanism;
The energy storage piece is arranged in the buckling mechanism and is extruded and deformed by the buckling mechanism; and
The fusing piece is connected and matched with the buckling mechanism; the fuse is adapted to cause the catch mechanism to remain in a locked state with the electrical component in the absence of a fire; when a fire disaster occurs, the fusing element is suitable for being broken, so that the locking mechanism is unlocked to the electrical element, and then the electrical element is suitable for being disengaged from the distribution box under the action of the elastic force of the energy storage element;
The electric appliance element is installed in the distribution box through the buckle assembly, the input end of the transmission assembly is connected with the fuse element, and the output end of the transmission assembly is connected with the buckle assembly; in the event of a fire, the fuse is adapted to pass through the transmission assembly to actuate the buckle assembly to unlock the electrical component;
The buckle assembly comprises a base, a plurality of clamping cylinders, a plurality of clamping columns and a plurality of limiting pins, wherein the base is fixedly installed in the power distribution cabinet, the clamping cylinders are installed in the base, the energy storage piece is located in the corresponding clamping cylinders, the limiting pins are elastically and slidably installed in the clamping cylinders and are connected with the output end of the transmission assembly, and the clamping columns are installed at the bottom ends of the electrical elements and are externally provided with limiting holes matched with the limiting pins; when the electrical component is installed, the clamping column is suitable for being matched with the clamping cylinder firstly, then the limiting pin is suitable for being matched with the limiting hole under the driving of the fusing piece and the transmission assembly, so that the clamping column is locked in the clamping cylinder, and the energy storage piece is suitable for being in a compression deformation state under the extrusion of the clamping column;
Tangential components are arranged on two sides of the electrical element; when the electrical element is disengaged from the base under the action of the energy storage element, the tangent line assembly is suitable for cutting off the connection circuit of the electrical element;
The wire cutting device comprises a base, a wire cutting assembly and a wire cutting assembly, wherein the top end of the base is provided with a plurality of wire clamps for limiting the connecting circuit corresponding to two sides of the electrical element, the top end of the base is provided with a notch corresponding to the side of the wire clamps, and the wire cutting assembly comprises a pair of cutters which are arranged on two sides of the electrical element; when no fire occurs, the cutter is positioned in the notch; in case of fire, the cutter is suitable for being driven by the electrical components to extend out of the notch and cut off the connecting line.
2. The power distribution cabinet with fire spread prevention function according to claim 1, wherein: the transmission assembly comprises a turntable and a plurality of connecting rods, the turntable is rotatably arranged on the base and connected with the fusing piece, and two ends of each connecting rod are respectively in hinged fit with the turntable and the corresponding limiting pin;
When a fire disaster occurs, the fusing piece is suitable for releasing the limit of the turntable, so that the limit pin is synchronously away from the limit hole under the action of the elastic force and the connecting rod.
3. The power distribution cabinet with fire spread prevention function according to claim 1, wherein: the transmission assembly comprises a gear, a first rack and a second rack, the gear is rotatably mounted on the base through a rotating shaft, the rotating shaft is connected with the fusing piece through a crank, the first rack and the second rack are correspondingly mounted on the limiting pin respectively, and the first rack and the second rack are meshed with two sides of the gear respectively;
When a fire disaster occurs, the fusing piece is suitable for releasing the limit of the rotating shaft, so that the limit pin is synchronously away from the limit hole under the action of elasticity and the meshing action of the gear and the rack.
4. A power distribution cabinet with fire spread prevention according to any of claims 1-3, characterized in that: the fuse comprises a fuse rope, a first end of the fuse rope is connected with an input end of the transmission assembly, a second end of the fuse rope is detachably connected with the base, and the fuse rope is sleeved on the outer portion of the electrical element and is used for limiting and locking the electrical element.
5. The power distribution cabinet with fire spread prevention function according to claim 1, wherein: the wire clamps corresponding to the wire holes of the electrical element are provided with a pair of notches, the notches are positioned between the two wire clamps, and the openings of the wire clamps are positioned at the side parts of the wire clamps.
6. The power distribution cabinet with fire spread prevention function according to claim 5, wherein: the lower end of the inner side of the box door of the distribution box is provided with a fireproof box, and the top end of the fireproof box is elastically rotated to be provided with a cover door;
When the electrical element is disengaged from the base under the action of the energy storage piece, the electrical element is suitable for falling under the action of gravity and then falls into the fireproof box through the cover door; the door is then adapted to return under spring force and to place the fire box in a closed condition.
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| CN202410465673.8A CN118099976B (en) | 2024-04-18 | 2024-04-18 | Power distribution cabinet capable of preventing fire from spreading |
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| CN202410465673.8A CN118099976B (en) | 2024-04-18 | 2024-04-18 | Power distribution cabinet capable of preventing fire from spreading |
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| CN215220911U (en) * | 2021-07-07 | 2021-12-17 | 郭峰 | Safety box for charging and storing electric vehicle battery |
| CN215891281U (en) * | 2021-09-26 | 2022-02-22 | 苏州纳布斯机电有限公司 | Power transmission device for fuse valve |
| CN115085019A (en) * | 2022-05-30 | 2022-09-20 | 陈金杰 | Stable trigger type block terminal for mobile communication base station |
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| CN210779573U (en) * | 2019-11-01 | 2020-06-16 | 郑州继飞机电设备有限公司 | Low-voltage intelligent power distribution cabinet |
| CN210488758U (en) * | 2019-12-09 | 2020-05-08 | 南京苏锦赛尔电气有限公司 | Safety alarm device of power distribution cabinet |
| CN212485866U (en) * | 2020-08-13 | 2021-02-05 | 张红杏 | High tension switchgear tripping operation protection device |
| CN111916945A (en) * | 2020-08-25 | 2020-11-10 | 深圳优地科技有限公司 | Fireproof socket, socket structure and charging pile |
| KR102386594B1 (en) * | 2021-04-27 | 2022-04-15 | (주)삼화종합기술 | Power distribution box for underground power distribution line |
| CN113964664B (en) * | 2021-09-24 | 2023-12-05 | 江苏江阴华明电气设备有限公司 | Multifunctional modularized intelligent low-voltage draw-out type switch cabinet |
| CN114336352B (en) * | 2022-03-07 | 2022-05-27 | 山东万海电气科技有限公司 | Fire emergency cut-off type lighting distribution box |
| CN219874774U (en) * | 2022-12-13 | 2023-10-20 | 西安帕德机电设备有限公司 | Explosion-proof switch board |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215220911U (en) * | 2021-07-07 | 2021-12-17 | 郭峰 | Safety box for charging and storing electric vehicle battery |
| CN215891281U (en) * | 2021-09-26 | 2022-02-22 | 苏州纳布斯机电有限公司 | Power transmission device for fuse valve |
| CN115085019A (en) * | 2022-05-30 | 2022-09-20 | 陈金杰 | Stable trigger type block terminal for mobile communication base station |
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