KR102071374B1 - Distribution panelboard having device of prevention of explosion - Google Patents

Abstract

The present invention relates to an industrial explosion-proof distribution board. According to the present invention, a foaming explosion-proof pad and a foaming explosion-proof panel which are non-flammable and flame retardant are attached to a main body case which forms a distribution board and an inner circumferential surface of a door panel so that even when a shattering phenomenon (broken and shattered: a mounting panel including electric parts or electric component elements of a power distribution module flies out of an enclosure) is caused by fire explosion which may be generated when overheating or overload of the power distribution module occurs, the present invention is capable of minimizing or preventing secondary damage to facilities excluding the distribution board, and thus, usage safety can be significantly improved. In addition, according to the present invention, shock-absorbing supporters are provided on a rear surface of the enclosure and outside of a bottom surface of the main body case to restrict the enclosure of the main body case from flying away with respect to a side wall and a bottom surface or to absorb shock and fix the enclosure when fire explosion occurs in the power distribution module, and thus, even when high impact is generated by strong explosion, it is possible to minimize damage to a bottom surface or a side wall of a building such as a facility (factory or industrial site). Moreover, according to the present invention, an explosion-proof member is provided on an attachment surface of edges of four surfaces on which the main body case and the door panel are coupled to each other to prevent heat or flames generated from external fires from infiltrating into the enclosure of the main body case, and thus, it is possible to minimize damage to the power distribution module or prevent fires from spreading. Through this, explosion-proof performance of the distribution board can be strengthened. The industrial explosion-proof distribution board of the present invention further comprises an expandable panel which is made of a soft elastic material and includes an incision groove so that the enclosure of the main body case is fixed to the bottom surface instead of being broken and bounced out by strong explosion.

Description

Distribution panelboard having device of prevention of explosion

The present invention is attached to the non-flammable and flame-retardant foam explosion-proof pad and foam explosion-proof panel on the inner peripheral surface of the main body case and the door panel constituting the distribution panel is broken against shattering (breaking and shattered) against fire explosion that may occur when overheating or overload of the power distribution module : Mounting panel including electric parts or electric component elements of power distribution module fly out of the enclosure) Even if a phenomenon occurs, it is formed to minimize or prevent secondary damages of the surrounding facilities other than the distribution panel so that the safety of use is greatly improved. It is related with the industrial explosion-proof distribution board.

In addition, the present invention is provided with a buffer supporter on the outside of the rear and bottom of the outer case of the main body case so that the enclosure of the main body case does not fly based on the side wall and the bottom surface in case of fire explosion of the power distribution module to be fixed or buffered, which is Even if a high impact caused by a strong explosion occurs, the damage to the floor or sidewall of the building (factory or industrial site, etc.) is minimized.

In addition, the present invention is provided with an explosion-proof member on the four-side edge close contact surface coupled to the main body case and the door panel to prevent the fire or flame generated from the external fire flows into the enclosure of the main body case to minimize damage to the power distribution module Or to prevent the fire from sticking, which is characterized in that the explosion-proof performance of the distribution panel is enhanced.

In general, there is always the risk of explosions and fires in industrial plants, refineries, gas refineries and plants handling flammables.

Therefore, these hazardous areas are classified according to their risk status by international conventions such as the National Electric Code (NEC) or the International Electro-technical Committee (IEC).

As a representative example of this classification, the dangerous place is divided into three places.The place where the dangerous atmosphere is continuously generated or is likely to occur in the normal state is classified into 0 places and the place where the dangerous atmosphere may occur in the ordinary place. Two kinds of places are classified into one kind of place and a place where a dangerous atmosphere may exist for a short time in an abnormal state.

There are always risks of explosions and fires in the 0 and 1 of these hazardous areas, so electrical equipment (power cables, switches and switch boxes, connectors, etc.) used in these areas may have sparked or unsafe power connections. If this occurs, it will cause an explosion and fire. Therefore, electric appliances require a means to prevent them from being particularly exposed to the risk of explosion and fire.

Therefore, electrical appliances used in hazardous areas are usually defined to have an explosion-proof structure.

In particular, in the case of a distribution panel used to apply power to various lighting fixtures or operating devices, as shown in FIG. 16, the case 1 and the front panel 2 are configured to be coupled and the front of the front panel 2 The main rotary knob 3 and the plurality of sub rotary knobs 4 are formed, and the case 1 has an internal on / off operation according to the operation of the main rotary knob 3 and the sub rotary knob 4 to the outside. A non-illustrated contact portion for supplying power to the electrical appliance is formed.

Here, the main rotary knob 3 and the sub rotary knob 4 is turned on / off operation control while rotating at a predetermined angle, the main contact portion and the sub contact portion (not shown) is turned on / off according to the rotation of the rotary knob To supply power.

In the distribution panel having a conventional explosion-proof structure having such a configuration, when the main rotary knob 3 in the off state is turned on in order to apply power to various electric appliances inside the hazardous area, the main contact part is turned on and operated. When the sub-rotation knob 4 connected to a specific electric appliance to be applied is turned on, the sub contact part is turned on.

However, such a conventional distribution panel has various knobs (main rotary knobs and a plurality of sub-rotary knobs) exposed to the outside, which causes a problem that an accident occurs even when the distribution panel is closed by an operator's mistake or an external fire or other external force. do.

In addition, the conventional distribution panel is exposed to explosions when the fire occurs due to overload or overheating of the power distribution module, and the electrical components provided inside the enclosure are broken out of the enclosure (they are broken and shattered) while the hazards are exposed to the surroundings of the facility. Problem occurs.

In addition, the conventional distribution panel is a situation that the problem that the explosion-proof structure is insufficient with respect to the coupling portion of the case and the front panel.

1. Republic of Korea Patent Publication No. 10-0341999 (registered on June 12, 2002)

The present invention is to solve the above problems, the technical gist of the explosion-proof pad and foam explosion-proof panel of non-flammable and flame-retardant material is attached to the inner circumferential surface of the main body case and the door panel constituting the distribution panel is generated when overheating or overload of the power distribution module Minimize or premature secondary damage to the surrounding facilities other than the distribution panel even if a blast (breaking and shattering: flying of the mounting panel containing the electrical components or electrical components of the power distribution module) flies out of the enclosure. It is an object to provide that it is formed to prevent such that the safety of use is greatly improved.

In addition, the present invention is provided with a buffer supporter on the outside of the rear and bottom of the outer case of the main body case so that the enclosure of the main body case does not fly based on the side wall and the bottom surface in case of fire explosion of the power distribution module to be fixed or buffered, which is Its purpose is to provide damage minimization to the floor or sidewall of a facility (factory or industrial site, etc.) even in the event of high impact from a strong explosion.

In addition, the present invention is provided with an explosion-proof member on the four-side edge close contact surface coupled to the main body case and the door panel to prevent the fire or flame generated from the external fire flows into the enclosure of the main body case to minimize damage to the power distribution module The purpose of the present invention is to prevent fire from being transferred, which is intended to provide enhanced explosion-proof performance of the distribution panel (incision grooves to be held on the floor without being thrown away by being smashed by a strong explosion). It is added that the expansion and contraction panel is formed of a soft elastic material)

In addition, the present invention is an optional embodiment, the link stopper for connecting and binding between the main body case and the door panel is further formed, which prevents the door panel from flying off based on the main body case when the fire explosion occurs Its purpose is to provide a means to prevent damage to the surrounding equipment of an installed factory or industrial site or to spread fires.

In addition, the explosion-proof pad and the explosion-proof panel of the present invention as an optional embodiment, the unit plate made of a foamed silica (SiO) material is to be assembled and bonded to each other, the unit plate is a cross-sectional shape when viewed from the top surface ( C) A bar-shaped panel formed in such a manner that the opposite supporting surfaces are spaced apart from each other with respect to the central elastic tube, and the projection surfaces formed at both ends of the supporting surfaces correspond to the other projection surfaces and bind to each other. The separation space formed through the elastic tube and the support surface is formed to form a buffer space or explosion-proof gap, and in particular, a plurality of unit plates assembled in one piece is not a single wall of one plate but a plurality of partitions. The cells are combined to form a checkerboard structure, which creates a strong impact even if the power distribution module is destroyed in case of fire explosion. To provide that to be dispersed as it is an object of distribution.

In addition, the present invention is an optional embodiment, the exhaust fan for the internal overheating prevention is provided on the outside of the grill net on the bottom surface of the main body case, the grill net is formed to have the exhaust hole of the honeycomb structure, the honeycomb structure The grill net provides that the fireproof filler pads are integrally inserted between the hexagonal exhaust holes so that the filler pads ignite and expand in the event of an external fire to block the exhaust holes so that explosion-proofing of the main body case into and out of the enclosure is provided. The purpose is.

In addition, the present invention is an optional embodiment, the mounting panel coupled to the power distribution module is to be fixedly coupled in the enclosure of the main body case, the mounting panel has a plurality of explosion-proof holders for the solid support and reinforcing fixing structure in the enclosure By being fixed to the explosion-proof pad, it is possible to minimize the scattering (flying, bursting) impact of the mounting panel itself even in the event of a strong fire explosion, which aims to provide double the explosion-proof performance.

In order to achieve the above object, the present invention includes an opening 14 formed at one side of the enclosure 13 so that the power distribution module 11 is coupled to the mounting panel 12 and embedded therein. Foamed explosion-proof pad 15 of the non-combustible and flame retardant material is formed to be attached, the enclosure 13 is provided with a buffer supporter 16 on the outside of the rear and bottom surface side wall and bottom surface in the event of fire explosion of the power distribution module 11 A main body case 10 for restraining or buffering the enclosure 13 so as not to fly; To be mounted in the opening 14, the non-combustible and flame-retardant foam explosion-proof panel 21 is formed on the inner circumferential surface facing the power distribution module 11, the electrical accessories during the fire explosion of the power distribution module 11 outside the enclosure (13) Door panel 20 to mitigate the impact so as not to fly; It is made up.

Accordingly, the buffer supporter 16 allows the fixture 161 and the support 162 to allow the elastic retaining member 163 to buffer by mutual repulsive force, but the fixture 161 is an enclosure (13). Bonding flange 1611 is provided to be coupled to the outer surface of the, the orthogonal axis from the bonding flange 1611 is provided with a shaft shaft 1613 having a locking jaw 1612, on the shaft shaft 1613 A hinge hole 1615 having a binding pin 1614 is formed, and the support 162 is provided with an attachment flange 1621 to be coupled to a wall, and the coupling tube 1622 orthogonal to the attachment flange 1621. A space 1625 having an insertion hole 1623 and a blinding jaw 1624 is formed so that the shaft shaft 1613 having the locking jaw 1612 is inserted therein, and the sliding pipe 1622 is slid along the longitudinal axis of the coupling pipe 1622. When the flow groove 1626 is formed and the binding pin 1614 passes through the hinge hole 1615, the fixture 161 and the support 162 are formed. The elastic retaining member 163 is formed between the outer flanges of the joint flange 1611 and the attachment flange 1621, the elastic elastic member 163 is to be mounted, but the shielding jaw (1624) and The space portion 1625 between the locking jaws 1612 is formed to have a second elastic spring 1632 embedded therein, and the inboard end of the shaft shaft 1613 provided with the locking jaws 1612 and the space portion 1625 The third elastic spring 1633 is embedded between the inner wall surfaces so that the convex surfaces face each other, and the elastic force is doubled.

At this time, the door panel 20 is to be opened and closed from the main body case 10 by one side hinge 30, the main body case 10 and the door panel 20 is explosion-proof in contact with the four-side edge contact with each other The member 40 is provided to prevent fire or flame generated from an external fire from flowing into the enclosure 13 of the main body case.

As described above, the present invention is attached to the inner circumferential surface of the main body case and the door panel constituting the distribution panel attached to the non-flammable and flame-retardant foam pads and foamed explosion-proof panel against the fire explosion that may occur when overheating or overload of the power distribution module (breaking shattered) Breaking: The installation panel including the electrical parts or electrical component elements of the power distribution module is flying out of the enclosure) Even if a phenomenon occurs, it is formed to minimize or prevent secondary damages of the surrounding facilities other than the distribution panel so that the safety of use is greatly improved. It is effective.

In addition, the present invention is provided with a buffer supporter on the outside of the rear and bottom of the outer case of the main body case so that the enclosure of the main body case does not fly based on the side wall and the bottom surface in case of fire explosion of the power distribution module to be fixed or buffered, which is Even if a high impact from a strong explosion occurs, damage to the floor or sidewall of a facility (plant or industrial site, etc.) is minimized.

In addition, the present invention is provided with an explosion-proof member on the four-side edge close contact surface coupled to the main body case and the door panel to prevent the fire or flame generated from the external fire flows into the enclosure of the main body case to minimize damage to the power distribution module In order to prevent the fire from being attached, this has the effect of enhancing the explosion-proof performance of the distribution panel.

In addition, the present invention has an effect that the expansion of the expansion panel having a cutting groove is formed of a soft elastic material so as to be caught on the floor without being thrown off while being smashed due to the strong explosion of the main body case, there is an effect that the safety is enhanced.

In addition, the present invention is an optional embodiment, the link stopper for connecting and binding between the main body case and the door panel is further formed, which prevents the door panel from flying off based on the main body case when the fire explosion occurs There is an effect to prevent damage to the peripheral equipment of the plant or industrial site installed or spread the fire.

In addition, the explosion-proof pad and the explosion-proof panel of the present invention as an optional embodiment, the unit plate made of a foamed silica (SiO) material is to be assembled and bonded to each other, the unit plate is a cross-sectional shape when viewed from the top surface ( C) A bar-shaped panel formed in such a manner that the opposite supporting surfaces are spaced apart from each other with respect to the central elastic tube, and the projection surfaces formed at both ends of the supporting surfaces correspond to the other projection surfaces and bind to each other. The separation space formed through the elastic tube and the support surface is formed to form a buffer space or explosion-proof gap, and in particular, a plurality of unit plates assembled in one piece is not a single wall of one plate but a plurality of partitions. The cells are combined to form a checkerboard structure, which creates a strong impact even if the power distribution module is destroyed in case of fire explosion. There is an effect that allows to distribute in distribution.

In addition, the present invention is an optional embodiment, the exhaust fan for the internal overheating prevention is provided on the outside of the grill net on the bottom surface of the main body case, the grill net is formed to have the exhaust hole of the honeycomb structure, the honeycomb structure The grill net has an effect that the fireproof filler pad is integrally inserted between the hexagonal exhaust holes so that the filler pad ignites and expands in the event of an external fire, thereby preventing the exhaust hole so that the explosion-proof property of the main body case to the inside and outside of the enclosure is imparted. .

In addition, the present invention is an optional embodiment, the mounting panel coupled to the power distribution module is to be fixedly coupled in the enclosure of the main body case, the mounting panel has a plurality of explosion-proof holders for the solid support and reinforcing fixing structure in the enclosure By being fixed to the explosion-proof pad, even in the event of a strong fire explosion to minimize the shock (flying, bursting) of the mounting panel itself, which has the effect of doubling the explosion-proof performance.

1 is an exemplary perspective view of a distribution panel according to the present invention;
2 to 3 is a side cross-sectional view of the distribution panel according to the present invention,
4 is an exemplary view showing a buffer supporter according to the present invention;
5 is an exemplary view showing a buffer supporter and a stretch panel according to the present invention;
6 is an exemplary view showing an explosion-proof member and a link stopper according to the present invention;
7 to 8 is an exemplary view showing a unit plate according to the present invention,
9 to 10 is an exemplary view showing an overheat prevention device according to the present invention,
11 to 15 is an exemplary view showing an explosion-proof holder according to the present invention,
Figure 16 is an exemplary view showing a conventional distribution panel.

The following describes the present invention in more detail with reference to the accompanying drawings.

First, as shown in FIGS. 1 to 15, the present invention is largely composed of a main body case 10 and a door panel 20.

Thus, the main body case 10 has an opening 14 formed on one side of the enclosure 13 so that the power distribution module 11 is coupled to the mounting panel 12 and embedded therein.

In this case, the foamed explosion-proof pad 15 of the non-combustible and flame-retardant material is attached to the inner circumferential wall surface of the enclosure except for the opening 14.

Thus, the explosion-proof pad is made of a foamed silica (SiO) material, when the porous glass (foamed form is not a complete sphere, a free form crushed foam) is formed by high-temperature foaming waste glass powder, put it in a molding frame to make the adhesive integral It is made to be molded into a panel.

In this case, the porous sphere is foamed and calcined glass at a high temperature (800 ~ 900 ℃) in the powder state, the particle size is 5 ~ 70mm, the dry density is 0.3g / cm 3 ~ 0.7g / cm 3, when water saturation The density is 0.9 g / cm 3 to 1.1 g / cm 3, the porosity is 65% to 85%, and the compressive strength is 10 kg / cm 3 to 30 kg / cm 3.

The explosion-proof pad 15 is formed so that it can be naturally broken at the time of impact and serves as a buffer.

Thus, the enclosure 13 is provided with a buffer supporter 16 on the outside of the rear and bottom surface is constrained or buffered to prevent the enclosure 13 from flying based on the side wall and the bottom surface during the fire explosion of the power distribution module 11 It is formed to.

At this time, the buffer supporter 16 is formed so that the fixing body 161 and the support 162 allows the elastic retainer 163 to buffer the action by the mutual repulsive force.

Thus, the fixing body 161 is provided with a bonding flange 1611 to be coupled to the outer surface of the enclosure 13, the shaft shaft 1613 having a locking jaw 1612 on the axis orthogonal to the bonding flange 1611 And a hinge hole 1615 having a binding pin 1614 is formed on the shaft shaft 1613.

In this case, the bonding flange is formed to be assembled to the outer box by a separate fixing bolt. This is to enable the detachable.

In addition, the support 162 is provided with an attachment flange (1621) to be coupled to the opposite side wall facing the fixture, the shaft having a locking jaw 1612 in the coupling tube (1622) orthogonal to the attachment flange (1621) A space 1625 having an insertion hole 1623 and a blinding jaw 1624 is formed to insert the shaft 1613.

In this case, the attachment flange is formed to be assembled to the wall surface by a separate fixing bolt. This is to enable the detachable.

Thus, a sliding flow groove 1626 is formed on the longitudinal axis line of the coupling pipe 1622, and when the binding pin 1614 passes along with the hinge hole 1615, the fixing body 161 and the support 162 are buffered. It is formed to form a section.

At this time, the elastic retaining member 163 is to be mounted between the outer flange of the bonding flange 1611 and the attachment flange 1621, the first elastic spring (1631), between the blinding jaw (1624) and the locking jaw (1612) The space portion 1625 of the second elastic spring 1632 is formed to be embedded.

Accordingly, a third elastic spring 1633 is embedded between the inlet end of the shaft shaft 1613 having the locking step 1612 and the inner wall surface of the space portion 1625 so that the convex surfaces face each other so that the elastic force is increased. It is formed to double.

That is, the fixing body and the support are attached to the enclosure and the wall, respectively, so that the shaft shaft and the coupling tube overlap each other to be penetrated and coupled, but the elastic retaining body is formed to have tension and repulsive force between the fixing body and the support, so that a fire or explosion It is formed to protect the floor and the side wall during the impact caused to prevent the enclosure of the body case from flying or to prevent damage to the floor or wall.

In this case, the expansion panel 17 is further coupled to the bottom of the enclosure of the main body case, but the expansion panel is formed of an elastic material (heavy urethane) having a cutout groove 171, so that the enclosure is to be thrown out due to a strong explosion. As the expansion panel is torn by the incision groove, it is formed to exert tension and hold the floor to prevent the enclosure from flying.

Accordingly, the expansion panel is formed of a metal injection-molded bracket on the lower side, the bonding bracket is formed of a metal on the upper side to be bolted (for example, an anchor bolt bottom) to the bottom and bottom of the enclosure of the body case. It is desirable to.

On the other hand, the door panel 20 is to be mounted in the opening 14, the inner circumferential surface toward the power distribution module 11 is formed so that the non-flammable and flame-retardant explosion-proof panel 21 is coupled to the fire explosion of the power distribution module 11 Shocks are alleviated to prevent the electrical accessory from flying out of enclosure 13.

Thus, the explosion-proof panel is made of a foamed silica (SiO) material, when the porous glass (foamed form is not a complete sphere, a free form crushed foam) is formed by high-temperature foaming waste glass powder to put the adhesive into a molding frame to make the adhesive integral It is made to be molded into a panel.

In this case, the porous sphere is foamed and calcined glass at a high temperature (800 ~ 900 ℃) in the powder state, the particle size is 5 ~ 70mm, the dry density is 0.3g / cm 3 ~ 0.7g / cm 3, when water saturation The density is 0.9 g / cm 3 to 1.1 g / cm 3, the porosity is 65% to 85%, and the compressive strength is 10 kg / cm 3 to 30 kg / cm 3.

The explosion-proof panel 21 is formed so that it can be naturally broken at the time of impact and serves as a buffer.

At this time, the door panel 20 is to be opened and closed from the main body case 10 by one side hinge 30, the main body case 10 and the door panel 20 is explosion-proof in contact with the four-side edge contact with each other The member 40 is provided to prevent fire or flame generated from an external fire from flowing into the enclosure 13 of the main body case.

Accordingly, the explosion-proof member 40 is formed such that the dome-shaped silicon gasket 41 and the bow-shaped silicon flip 42 are embedded in the mounting groove 43 and the socket groove 44 of the main body case, respectively, to close the door panel 20. Corresponding to the pressure end 45 and the explosion-proof knife 46 formed on the outer end of the door panel is formed to double the explosion-proof performance.

That is, the domed silicon gasket is partially inserted into the mounting groove and protrudes, and is formed to block the external flame inflow while the convex curved surface is in close contact with the pressing end of the door panel.

At this time, the socket groove is to be built in the silicon silicon flip, the silicon silicon flip is inserted in the form corresponding to the socket groove of the depression, the same opening is formed in the open side is formed explosion-proof knife is inserted when the door panel is closed It is formed to be.

At this time, the curved silicon flip is formed to strengthen the airtight and explosion-proof performance in accordance with the insertion of the explosion-proof knife while the curved surface (convex surface) symmetrical to each other with respect to the center portion (an axis where the explosion-proof knife is inserted) symmetrically close to each other.

" 형상으로 형성되는 것이 바람직하다.On the other hand, the contact surface (surface contacting the pressing end) of the domed silicon gasket is "

It is preferably formed into a "shape.

That is, the close contact surface is formed so that the inner space portion can be easily folded or restored.

" 형상으로 형성되는 것이 바람직하다.At this time, the insertion hole (the end inserted into the mounting groove) of the domed silicon gasket is "

It is preferably formed into a "shape.

That is, the insertion hole is made of a wedge shape so that it can be given a solid support when mounting in the mounting groove.

At this time, the insertion hole is formed in the space portion is formed so that the smooth bending occurs when the interference with respect to the mounting groove, it is formed to facilitate the widthwise pressure type insertion for the mounting groove formed in the slit form long.

Thus, the contact surface is formed in a soft form of the physical property, the insertion port is preferably formed of a hard or heavy physical properties.

This is to double the compressibility of the contact surface is formed to improve the pressing performance, the fastener is formed of a heterogeneous material having a strong physical property to ensure a secure mounting.

In addition, the present invention is an optional embodiment, to further form a link stopper 70 that connects and binds between the body case and the door panel, which prevents the door panel from flying off based on the body case when a fire explosion occurs. Thus, there is an effect to prevent the damage to the peripheral equipment of the factory or industrial site where the distribution panel is installed or spread the fire.

At this time, the link stopper 70 has one end in the longitudinal direction of the curved link 71 is coupled to the main hinge shaft 72, and the other end in the longitudinal direction of the curved link 71 is coupled through the connection hinge shaft 73. It is connected to one end of the straight link 74, the other end of the straight link 74 is formed to be coupled to one side of the inner circumferential surface of the door 20, according to the rotation radius of the door 20 at the initial opening of the door 20 The sudden rotational load of the vehicle curve section is formed to cover the curved link 71, and the gentle load of the secondary straight section generated when the door 20 is opened in the second half is formed to share the linear link 74, so that the door explodes. When it occurs, the door is formed to minimize impact damage.

Thus, at the end of the straight link 74, which is located at the inner circumferential side of the door 20, a T-shaped bracket 75 having a hinge hole is provided to be connected to the straight link by a hinge pin.

In addition, the explosion-proof pad 15 and the explosion-proof panel 21 of the present invention, as an optional embodiment, is formed so that the unit plate (P) made of foamed silica (SiO) material is assembled to each other.

At this time, the unit plate (P) is a bar-shaped panel having a cross-sectional shape in the form of a depression (c) when viewed from the upper surface, the support surface (P-1) facing the center elastic pipe (P- It is formed to be symmetrical while being spaced based on 2).

Thus, the protruding surfaces P-3 formed at both ends of the support surface P-1 are formed to be coupled to each other while corresponding to the protruding surfaces P-3 of the other unit plate.

As such, the separation space P-4 formed through the elastic pipe P-2 and the support surface P-1 is formed to form a buffer space or an explosion-proof gap.

The unit plate is formed so as to form a structure in which a plurality of compartments or checkerboards are combined, so that even if the power distribution module is generated in the event of fire explosion, a strong impact may be dispersed and broken in various distributions.

That is, the unit plates are formed to be symmetrically coupled to each other based on an elastic tube (rubber or silicone pipe) to form a space to ensure explosion-proof performance.

In this case, the unit plates are formed so as to bind the unit plates while the binding wire penetrates through the through holes corresponding to the support surfaces and the projection surfaces.

At this time, a screw thread is formed at the end of the binding wire so that the assembly is completed by the binding nut (formed to be screwed in the form of a nut).

In addition, the present invention is an optional embodiment, is formed so that the internal overheat protection 50 is provided in the bottom surface of the enclosure of the main body case.

Thus, the overheat prevention device 50 is formed such that the exhaust fan 51 is provided outside the grill net 52.

At this time, the grill net 52 is to have an exhaust hole 53 of the honeycomb structure, the grill net of the honeycomb structure is the refractory filler pad 54 is integrally inserted between the exhaust hole 53 of the hexagonal shape to the outside In the event of fire, the refractory filler pad 54 is formed so as to prevent explosion of the exhaust hole 53 while igniting and expanding, thereby assisting (improveing) explosion-proofness into and out of the enclosure.

In addition, the present invention is an optional embodiment, the mounting panel coupled to the power distribution module is to be fixedly coupled in the enclosure of the main body case, the mounting panel is a plurality of explosion-proof holder 60 for a solid support and reinforcing fixed structure By fixing to the explosion-proof pad in the enclosure, even in the event of a strong fire explosion to minimize the impact (flying, bursting) of the mounting panel itself, in order to double the explosion-proof performance.

Thus, the explosion-proof holder 60 is largely configured to include the main bolt 100, the expansion piece 200 and the pressing nut 300.

The main bolt 100 has a head portion 110 which is inserted into the explosion-proof pad, a locking step 120 provided to have a diameter slightly smaller than the head portion 110 below the head portion 110, and Is provided in a hexagonal shape along the outer periphery of the locking jaw 120 is extended to the lower portion of the anti-rotation 130 and the anti-rotation 130 to support the expansion piece 200 so as not to rotate and the outer periphery It is configured to include a threaded bolt portion 140.

The anti-rotation unit 130 has been described in the form of a hexagon, but is not limited thereto. The anti-rotation unit 130 may have a polygonal shape to prevent rotation.

The head portion 110 is made to be the minimum size of the expansion piece 200 is easy to insert when inserted into the explosion-proof pad, and even after insertion to minimize the gap between the expansion piece 200 and the explosion-proof pad firmly Can be kept fixed.

Although the head portion 110 is illustrated and described as an inclined disc shape at the top, the present invention is not limited thereto, and the head part 110 may be embodied in various forms such as a sharp cone shape, a trapezoid shape, a hemisphere shape, and the like to be easily inserted into the explosion-proof pad. have.

On the other hand, the expansion piece 200 is one end portion in contact with the head portion 110, the other end portion is made of a hexagonal tube shape surrounding the outside of the bolt portion, the center of the expansion piece 200, The upper portion that is in contact with the head portion 110 is provided in the form of a flesh is provided with an expansion portion 210 which is bent while being expanded to the outside when the pressure is applied, the center of the expansion piece 200, the center of the head portion 110 On the opposite side is made of a tubular shape and comprises a support 220 for supporting the expansion piece 200.

At this time, the expansion unit 210 is an extension guide groove 211 which guides the expansion unit 210 to easily expand in the explosion-proof pad as all other parts of the expansion unit 210 having a flesh shape are cut and penetrated. ) Is formed, and each of the bending portions 212 is formed in the middle of the expansion portion 210 by forming a bending groove 212 in each of the folded portions so that the bending of the expansion portion 210 can be made accurately and easily. As the part is bent, the extension 210 is folded and expanded as a whole.

In addition, the bottom of the expansion piece 200 is bent in the form of a wing to the outside of the expansion piece 200, the expansion piece 200 is fixed to the explosion-proof pad, the one side of the mounting panel to support the pressure nut 300 The support piece 230 is further provided to prevent the mounting panel from being damaged while being excessively fastened.

At this time, the pressing nut 300 is fastened along the bolt portion 140 of the main bolt 100 to press the expansion piece 200 to expand the expansion portion 210 of the expansion piece 200 in the explosion-proof pad. Let's do it.

The pressure nut 300 may be formed in the form of a nut through the center, but may also be formed in the form of a cap in which a lower portion of the pressing nut 300 is closed.

When the pressing nut 300 is formed in a cap form, the angle setting groove 310 is formed therein so that when the pressing nut 300 is tightened for a predetermined period, the tightening nut 300 is no longer tightened so as to expand the expansion piece 200. You can only extend it to install.

That is, the main bolt 100 has a latching jaw 120 to prevent the expansion piece 200 from being pushed toward the head portion 110 on the right side of the head portion while the head portion 110 faces the side portion. It is further provided.

The outer side of the locking jaw 120 forms a hexagon having a size corresponding to that of the expansion piece 200 and the rotation preventing part supporting the expansion piece 200 so as not to rotate in a state of being fitted to the locking jaw 120. 130 is formed.

One side of the anti-rotation part 130 is provided with a bolt portion 140 is formed to extend in the side and the outer periphery threaded thread.

The expansion piece 200 is fitted to the outside of the bolt portion 140 is coupled.

The expansion piece 200 is formed in the form of a hexagonal tube as a whole, the inner circumference is made of the same size and shape as the rotation preventing portion 130 of the main bolt 100.

One side of the expansion piece 200 is formed with a plurality of expansion guide grooves 211 is escaped, between the expansion guide grooves 211 is provided with an extension 210 made of a flesh shape.

One side of the extension 210 supports the force of the pressure nut 300 when the pressure nut 300 is tightened to support the pressure 220 to transfer the pressure of the pressure nut 300 to the extension portion (210) Is provided.

The expansion piece 200 is not rotated even when the pressure nut 300 is fastened from one end of the main bolt 100 as one inner circumferential surface is fitted to the rotation preventing part 130, and thus the pressure nut 300 is tightened. Only the pressure is applied to the support portion 220 pushes the expansion portion 210 so that the expansion portion 210 is extended to the outside, respectively, it is possible to firmly support the main bolt 100 in the explosion-proof pad.

Thus, in the state in which the expansion piece 200 is fitted to the main bolt 100, one end of the bolt part 140 of the main bolt 100 is pressed by the screw nut structure 300 to the bolt nut 140. ) Are fitted and combined.

Hereinafter, embodiments of the present invention will be described in detail.

The expansion piece 200 is inserted into the explosion-proof pad while penetrating the mounting panel while the expansion piece 200 is fitted to the main bolt 100.

The mounting panel is provided with a fixing hole formed in a form corresponding to the expansion piece 200 to prevent the expansion piece 200 is rotated in the fastening process.

On the other hand, in the state in which the main bolt 100 and the expansion piece 200 is fitted, the pressing nut 300 is fastened below the bolt portion 140 of the main bolt 100.

The pressing nut 300 is fastened along the bolt portion 140 at the rear end of the expansion piece 200 to pressurize the expansion piece 200 to provide a pressure to expand the extension 210 of the expansion piece 200. It is formed to.

In this case, the center may be pressurized using the pressurized nut 300 having a penetrating form, but when the pressurized nut 300 is fastened for a certain period using the capped pressurized nut 300, the end is not fastened anymore. It is fixed so that the expansion piece 200 can be expanded only as necessary.

At this time, the expansion portion 210 is provided with a bent groove 212 pointed inwardly in the middle, respectively, the middle portion of the expansion portion 210 is expanded by the bending groove 212, the same overall position In the expansion unit 210 is expanded to be able to more firmly support the main bolt (100).

In addition, the lower bottom surface of the expansion piece 200 is a portion starting to rotate in the rotational direction when the pressure nut 300 is drawn coincides with the bottom surface of the expansion piece 200, along the direction in which the rotation proceeds When the pressure nut 300 is provided to be inclined toward the pressure nut 300 side, that is, one side, the pressure nut 300 is easily fastened along the inclined surface by elasticity, and the pressure nut 300 is pressurized when the pressure nut 300 is fastened. An anti-loosening piece 250 is further provided to fix and support the nut 300 so as not to rotate in the reverse direction.

At this time, the upper surface of the pressing nut 300 is formed by the anti-loosening piece 250 provided on the bottom surface of the expansion piece 200, the anti-loosening groove 320 is fixed so as not to loosen the pressing nut 300 is formed. .

 The anti-loosening groove 320 is a portion in which the rotation starts along the inclined surface of the anti-loosening piece 250 starts at a position in contact with the bottom surface of the expansion piece 200, and is gradually inclined along the rotating direction. The sliding surface and the inclined surface of the anti-loosening piece 250 are coupled to each other while being engaged with the anti-loosening piece 250 while the pressure nut 300 is fastened to prevent the pressing nut 300 from being reversely rotated.

Due to this, the expansion piece 200 is expanded and fastened to the side as the expansion piece 200 is expanded, and after the fastening prevention groove 320 is caught by the release preventing piece 250, the pressing nut 300 is fixedly supported so that the reverse rotation is not reversed. As a result, even when used for a long time, it is possible to prevent the fixed bearing force from weakening while being released to the press nut 300.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

10 ... Main body case 11 ... Power distribution module
12 ... mounting panel 13 ... enclosure
14 ... opening 15 ... explosion-proof pad
16 ... buffer supporter
20 ... Door panel 30 ... Hinge
40 ... explosion proof member

Claims (3)

An opening 14 is formed at one side of the enclosure 13 so that the power distribution module 11 is coupled to the mounting panel 12, and the foamed explosion-proof pad of non-combustible and flame-retardant material is formed on the inner circumferential wall except for the opening 14. 15) is formed to be attached, the enclosure (13) is provided with a buffer supporter 16 on the rear and bottom of the outer surface, the enclosure 13 is blown based on the side wall and the bottom surface during the fire explosion of the power distribution module (11) Body case 10 to restrain or buffer fixed so as not to go; To be mounted in the opening 14, the non-combustible and flame-retardant foam explosion-proof panel 21 is formed on the inner circumferential surface facing the power distribution module 11, the electrical accessories during the fire explosion of the power distribution module 11 outside the enclosure (13) Door panel 20 to mitigate the impact so as not to fly; In the industrial explosion-proof distribution panel is configured,
The buffer supporter 16 allows the fixture 161 and the supporter 162 to allow the elastic retainer 163 to buffer by mutual repulsion, but the fixture 161 is outside of the enclosure 13. Bonding flange 1611 is provided to be coupled on the surface, the axis orthogonal to the junction flange 1611 is provided with a shaft shaft 1613 having a locking jaw 1612, a binding pin on the shaft shaft 1613 A hinge hole 1615 having a 1614 is formed, and the support 162 is provided with an attachment flange 1621 to be coupled to the wall surface, and the engaging jaw (1622) orthogonal from the attachment flange (1621). A space 1625 having an insertion hole 1623 and a blinding jaw 1624 is formed so that the shaft shaft 1613 having the 1616 is inserted therein, and the sliding flow groove is formed on the longitudinal axis of the coupling pipe 1622. 1626 is formed, and when the binding pin 1614 passes through the hinge hole 1615, the space between the fixture 161 and the support 162 may be reduced. It is formed to form a filling section, the elastic retaining member 163 is to be mounted between the outer flange of the bonding flange 1611 and the attachment flange 1621, the first elastic spring (1631), but the hooking jaw (1624) The space portion 1625 between the jaws 1612 is formed to have a second elastic spring 1632 embedded therein, and the inner end of the shaft shaft 1613 provided with the locking jaw 1612 and the inside of the space portion 1625. A third elastic spring 1633 is embedded between the walls so that the convex surfaces face each other, and the elastic force is doubled, and the door panel 20 is opened and closed from the main body case 10 by one hinge 30. However, the main body case 10 and the door panel 20 are provided with an explosion-proof member 40 on the four-side edge contact surface in contact with each other, the fire or flame generated from an external fire is inside the enclosure 13 of the main body case. Is formed to prevent the flow into the, the mounting panel 12 is in the enclosure When fixed to the width pad 15 to be fixed to a plurality of explosion-proof holder 60, the explosion-proof holder 60 is composed of the main bolt 100, expansion piece 200 and the press nut 300, The main bolt 100 has a head portion 110 inserted into the explosion-proof pad 15, and the locking step 120 is formed below the head portion 110 to have a narrower diameter than the head portion 110 And a rotation preventing portion 130 provided in a hexagonal shape along the outer circumference of the locking jaw 120 to securely support the expansion piece 200 so as not to rotate, and to the lower portion of the rotation preventing portion 130. The extended outer periphery is configured to include a threaded bolt portion 140, the expansion piece 200 is one end portion in contact with the head portion 110, the other end of the hexagon wraps around the outside of the bolt portion Upper part of the tubular shape, in contact with the head 110, centered on the center of the expansion piece (200) Is provided with a flesh form is provided with an expansion portion 210 is bent while being expanded to the outside when the pressure is applied, around the center of the expansion piece 200, the opposite side of the head portion 110 is made of a tubular expansion piece It is configured to include a support 220 for supporting the 200, the pressing nut 300 is fastened along the bolt portion 140 of the main bolt 100 to press the expansion piece 200 by pressing the expansion piece ( Industrial explosion-proof panel, characterized in that to expand the expansion portion 210 of the explosion-proof pad (15) inside the 200.
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