KR102051463B1 - Distribution box of apartment house electricity - Google Patents

Abstract

The present invention relates to a distribution box of apartment house electricity and, more specifically, to a distribution box of apartment house electricity which can easily perform angle adjustment and attachment and detachment of a base panel during working for repairs or maintenance of a branch circuit of a distribution board and, furthermore, can prevent an electric leakage or a short circuit phenomenon caused by condensation and the like generated in the distribution box in advance so as to prevent safe accidents and can further strengthen safety.

Description

Distribution box of apartment house electricity

The present invention relates to an electrical distribution box of a multi-unit house, and more particularly, it is possible to easily adjust the angle and mounting of the base panel during the work for the repair or maintenance of the branch circuit of the switchboard, and further condensation generated inside the distribution box. The present invention relates to an electrical distribution box of a multi-unit house which prevents a short circuit or short circuit caused by a back light, thereby preventing a safety accident and enhancing safety.

In general, multi-unit housings have a power divider that distributes and supplies the power supplied to various loads, and detects the voltage state supplied to the load to quickly cut off the electricity in the event of an abnormality such as a short circuit, thereby preventing safety accidents caused by electricity. A switchgear is provided with various devices such as an earth leakage circuit breaker or a circuit breaker that selectively cuts off electricity only to a load side having an abnormality, and an electric power meter for measuring the total amount of electric power used for a certain period of time.

Switchboards are usually buried on the wall during construction, and some of them are installed to be exposed to the outside, so as to control the selective supply of electricity as needed, and to make management and maintenance convenient.

That is, as shown in FIG. 1, the switchboard includes a base panel 11 made of an insulating material fixedly installed inside the housing 10, a branch circuit 12 formed on the base panel 11, and the branch circuit ( It is provided with an intermediate portion of 12) includes a switch 13 to connect or cut off the branch circuit (12).

At this time, the output terminal 15 together with the input terminal 14 is formed in the base panel 11 of the branch circuit 12, respectively, and the lead line 16 and the input terminal 14 and the output terminal 15, respectively. The leader line 17 is connected to each other.

Accordingly, the electricity supplied through the lead wire 16 is branched to be output through the lead wire 17, and the lead wire 16 is provided as a high-voltage single wire, whereas the lead wire 17 is made of low voltage cables.

The housing 10 is usually provided to be partially embedded in the concrete wall of the building, and the cable guide 20 for guiding and protecting the branched wires for power distribution is provided at the boundary between the housing 10 and the concrete wall. do.

Meanwhile, a plurality of wires drawn out and drawn into the switchboard inside the concrete wall of the building, in particular, a plurality of distributed wires, are divided into a predetermined position inside the switchboard and drawn out again into the concrete wall, where the gap between the switchboard and the concrete wall is closed. Connections are used to guide the wires.

By the way, the conventional base panel 11 installed in the housing 10 is a structure that is fixed close to the one-piece structure is necessary to replace the base panel 11 itself due to aging and corrosion or the branch circuit 12 is provided When the switch 13 is damaged and needs to be repaired or repaired, or when circuit expansion, maintenance, etc., work has to be done in a vertical position. There was a lot.

In addition, the risk of occurrence of safety accidents such as short circuit or short circuit occurs when water is generated due to condensation inside the housing 10.

Republic of Korea Patent Registration No. 10-0972468 (2010.07.20.) 'Ceiling electric distribution box for public housing'

The present invention was created in view of the above-described problems in the prior art, and can be easily solved by adjusting the angle and mounting of the base panel during operation for repair or maintenance of the branch circuit of the switchboard. Its main purpose is to prevent electrical accidents and short circuits caused by condensation, etc. generated inside the distribution box, to prevent safety accidents and to provide electrical distribution boxes for multi-unit houses.

The present invention is a means for achieving the above object, the branch circuit having a base panel 11 of an insulating material provided therein, the input terminal 14 and the output terminal 15 provided in the base panel 11 (12), a switch 13 provided to connect or disconnect the branch circuit 12 at an intermediate position of the branch circuit 12, the input terminal 14 and the output terminal formed in the branch circuit 12 ( A distribution box electrical distribution box having a housing (10) having a lead line (16) and a lead line (17) respectively connected to 15;
The housing 10 is formed in a rectangular box shape having a door DR; Vent holes PA of the same size are formed at the upper front end and the lower end of the housing 10; The through hole 110 is formed in the center of the plate surface of the base panel 11; A plurality of insertion guide ribs 120 having a 'b' shape are formed on the rear surface of the base panel 11 at the center thereof; The fixing plate 130 is inserted into the insertion guide rib 120; A fixing groove 140 corresponding to the through hole 110 is formed at the center of the fixing plate 130. The upper arm 150 is integrally fixed to the rear surface of the fixing plate 130 to be perpendicular to the plate thickness direction; An upper joint 160 is fixed to an end of the upper arm 150; One end of the intermediate arm 170 is fixed to the upper joint 160; A lower joint 180 is fixed to the other end of the intermediate arm 170; An upper end of the lower arm 190 is fixed to the lower joint 180; A fixed base 200 is fixed to the other end of the lower arm 190; The fixed base 200 is fixed to the inner bottom surface of the housing 10 is configured to fold the base panel (11);
The base panel 11 is a panel core (11a) made by adding a mixed resin solution containing 1.5% by weight of hexamethlyenetetramine to promote foaming in a polypropylene resin into a primary foam molding machine and foamed at low magnification. ; When maintaining the surface temperature of 25-35 ℃ before the panel core (11a) is completely cooled, put into the secondary foam molding machine to make a cavity, and put the mixed resin liquid up and down the panel core (11a) to foam molding at high magnification The elastic resin layer (11b) is formed while the mixed resin is filled between the panel core (11a); wherein the low magnification is a foaming magnification of 8 times magnification, the rigidity is increased, the high magnification is 32 times magnification It is a foaming ratio in which ductility is increased as a magnification, and the panel core 11a has a structure in which '∪∩' type irregularities are repeated up and down;
The base panel 11 and the fixed base 200 have a first magnesium phosphate (Mg (H ₂ PO ₄ ) ₂ ) and a first aluminum phosphate (Al (H ₂ PO ₄ )) to further provide water resistance in addition to insulation and corrosion resistance. ₃ ) 15% by weight of the mixed solution mixed at a weight ratio of 1: 1, 6.5% by weight of propylene dicarboxylic acid for imparting anionic functionality to the inside and the surface of the polymer, and to form a film to increase surface smoothness and impart antifouling properties. 1.5% by weight of triglycerides, 3.5% by weight of coal tar to impart crack control and waterproofing properties, 8.5% by weight of diaryphthalate to improve adhesion and toughness and to impart adhesion stability, and to prevent particle aggregation and uniform dispersion 6.5% by weight of polyethylene glycol phenyl ether, 1.5% by weight of BHT (Butylated HydroxyToluene), 1.0% by weight of rosin, 1.0% by weight of paraffin wax, and the remaining ethylene vinyl acetate Molded into a composition consisting of:
The housing 10 is further installed in the cooling unit 400, the cooling unit 400 is the cooling air tank 430 fixed to one side of the housing 10 and the cooling air tank 430 The cooling air supply unit 440 is provided on the upper surface, and the cooling air supply pipe 410 is piped to the cooling air discharge pipe 410 for discharging the cooling air into the housing 10, the cooling air discharge pipe 410 At a lower position, a temperature rising air suction pipe 420 is ducted to circulate the inside of the housing 10 and sucks up the heated air, and one end of the temperature rising air suction pipe 420 is one of the cooling air tanks 430. Connected to the upper side of the side surface and configured to recover the heated air to the cooling air tank 430;
The cooling air supply unit 440 has one end is opened and the other end is a closed cylindrical circulator housing 442, a housing cover 444 fastened and fixed to the open end of the circulator housing 442, the circulator housing A circulation air pump 446 installed inside the 442 and passing through the housing cover 444 is connected to the discharge end, and connected to the suction end of the circulation pump 446, and the circulation housing. Cooling air suction pipe 448 for sucking the cooling air staying in the cooling air tank 430 through the other closed end of the (442) and the other end of the circulator housing 442 is fixed to at least two around And a pair of copper plates 452 having a semicircular shape that is housed in the element storage cylinder 450 and grounded to an outer circumferential surface of the cooling air suction pipe 448. The heat absorbing side is grounded on the copper plate 452, and the heat generating side stores the element. The tube cooling thermoelectric element 454 exposed to the opening opening 452 of the 450 and the outer peripheral surface of the element storage container 450 is fixed to the tube to secure the tube cooling thermoelectric element 454 and the tube An element fixing tool 456 having a heat dissipation hole 458 such that the heat generating side of the cooling thermoelectric element 454 is exposed to air;
The inside of the circulator housing 442 is filled with a silica gel 460, a ball filter 470 is further installed in a portion of the cooling air suction pipe 448, the ball filter 470 is a spherical shape therein 40% by weight of silica gel, 2.5% by weight of propylene dicarboxylic acid, 15% by weight of hydrogen silsesquioxane resin, and a particle size of 0.02mm. The synthetic resin comprising 1.5% by weight of jewels having precious stones, 1.5% by weight of triglycerides, 2.0% by weight of aluminum hydroxide, 1.5% by weight of polyethylene glycol phenyl ether, and the remaining PVC sol. To provide a distribution box.

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According to the present invention, it is possible to easily adjust the angle of the base panel and the mounting and detachment of the base panel during work for the repair or maintenance of the branch circuit of the switchboard, and further prevent the short circuit or short circuit due to condensation generated inside the distribution box. It can have the effect of preventing safety accidents and enhancing safety.

1 is a block diagram of a distribution box of a multi-unit house electricity according to the prior art.
2 is an exemplary view of a distribution box constituting a switchboard according to the present invention.
3 is a schematic view showing a rotational structure of the base panel installed in the distribution box of FIG.
4 is an exemplary view illustrating an operation example of a base panel installed in the distribution box of FIG. 2.
5 is an exemplary view showing a fixing structure of the basal panel according to the present invention.
6 is an exemplary view of a ventilation unit installed in the distribution box according to the present invention.
Figure 7 is an exemplary side cross-sectional view showing an installation example of the ventilation unit according to the present invention.
8 is an exemplary view showing a manufacturing example of the base panel according to the present invention.
9 and 10 are exemplary views of a housing cooling unit according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

Prior to the description of the present invention, the following specific structures or functional descriptions are merely illustrated for the purpose of describing embodiments according to the inventive concept, and the embodiments according to the inventive concept may be implemented in various forms, It should not be construed as limited to the embodiments described herein.

In addition, embodiments in accordance with the concepts of the present invention may be modified in various ways and may have various forms, specific embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a particular disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

As shown in Figure 2, the housing 10 constituting the electrical distribution box of the multi-unit house according to the present invention is formed in a rectangular box shape having a door (DR).

Particularly, unlike the conventional method, vent holes PA of the same size are formed at the upper end and the lower end of the housing 10, and a filter (not shown) may be interchangeably mounted in the cartridge form in the vent holes PA.

3 to 5, the base panel 11 embedded in the housing 10 is configured to be rotatable.

To this end, the through hole 110 is formed in the center of the plate surface of the base panel 11, the insertion guide rib 120 of the 'b' shape with the through hole 110 in the center of the back of the base panel 11 Is formed to protrude so as to form a rectangular shape as a whole.

In addition, a fixing plate 130 is inserted into the insertion guide rib 120, and a fixing groove 140 corresponding to the through hole 110 is formed in the center of the fixing plate 130.

In addition, the upper arm 150 is integrally fixed to the rear surface of the fixing plate 130 to be perpendicular to the plate thickness direction, and the upper joint 160 is fixed to the end of the upper arm 150, and the upper joint ( One end of the intermediate arm 170 is fixed to 160, the lower joint 180 is fixed to the other end of the intermediate arm 170, and the upper end of the lower arm 190 is fixed to the lower joint 180, A fixing base 200 is fixed to the other end of the lower arm 190, and the fixing base 200 is fixed to the inner bottom surface of the housing 10 by bolts or screws.

Therefore, the base panel 11 is configured to be folded in a state in which it is installed in the housing 10.

In particular, as shown in an enlarged view in FIG. 5, the periphery of the through hole 110 is recessed to a predetermined depth so that the stepped jaw 112 is formed, and the stepped 112 has a hemispherical convex protrusion 114 spaced in the circumferential direction. A plurality is formed.

In addition, the fixing bolt BT is bolted in a state in which the coil spring 116 is inserted into the through hole 110 and then seated in the fixing groove 140, and the head of the fixing bolt BT is prevented from loosening. On the lower surface of HD, a plurality of semicircular grooves 118 are formed at intervals in the circumferential direction.

Therefore, after the fixing bolt BT is fastened, the play is minimized due to the elastic repulsive force of the coil spring 116, and the groove 118 is engaged with the convex protrusion 114, so that the bolt loosening prevention function after tightening is easily increased. It has a structure that does not solve.

In addition, the upper joint 160 and the lower joint 180 is preferably a joint motor 230 is installed to be configured to rotate by mechanical force.

That is, the joint motor 230 is a biaxial motor, and has a structure in which the motor shaft 232 protrudes from both sides of the motor body, and a spline is formed in the motor shaft 232.

In addition, the joint motor 230 is integrally fixed to the upper end of the intermediate arm 170 and the lower arm 190, respectively, the lower end of each of the upper arm 150 and the intermediate arm 170 to the motor shaft 232 It has a structure that is fitted and splined.

To this end, at each lower end of the upper arm 150 and the intermediate arm 170, a motor insertion groove (HOM) into which the joint motor 230 can be inserted is formed in a recess, and both side walls of the motor insertion groove (HOM) are formed. The spline groove (SPL) is formed to be splined to the motor shaft 232 is fitted.

At this time, one side wall of the motor insertion groove (HOM) for the installation of the joint motor 230 should have a structure of a method of being fixed through a fixing member (SC), such as bolts or screws in a separated state.

In addition, the articulated motor 230 is preferably a step motor that is reciprocally rotated within the 90 ° range.

When combined in this way, the base panel 11 can be easily folded using a mechanical force.

In particular, when folded as shown in (a), (b) of Figure 4 when the intermediate arm 170 is folded 90 degrees in the clockwise direction, the upper arm 150 is folded 90 degrees in the counterclockwise direction of the base panel 11 The wiring work surface can be arranged to always face the upper surface, which greatly improves the work convenience.

In addition, although not shown, a commercially available wire connection connector, particularly an IDMC (Insulation Displacement & Multiple Connection) type stripless wire connection connector, is used to connect wires to the base panel 11 between the wire and the connector. The innovative connection resistance can be lowered, further improving stability.

Here, the connection resistance (R) = ρ × L / S (ρ is the resistivity constant of the material, L is the length of the wire, S is the contact area). By increasing S, the resistance value is significantly lowered.

On the other hand, a pair of vertical airflow guide 300 is installed on both sides of the housing 10, the vertical airflow guide 300 is provided with a plurality of horizontal airflow guide 310 at intervals along the longitudinal direction, The upper side of the vertical blower guide 300 is connected to the outlet end of the blower 330 after the connecting blower guide 320 is extended.

In addition, the inlet end of the blower 330 is in communication with the ventilation hole PA formed on the upper end of the housing 10 through the suction guide 340.

Therefore, by introducing the outside air by the periodic drive of the blower 330 by ventilating the inside of the housing 10 it is possible to remove the internal moisture and keep it in a dry state.

Here, the reason for suctioning through the upper vent (PA) is to increase the drying efficiency by inhaling the air of the higher temperature as possible because the air temperature of the upper side is higher than the lower side because the hot air rises as the temperature rises, The air blown into the housing 10 is discharged through the ventilation hole PA formed at the bottom of the housing 10.

In addition, a controller 210 is installed on the intermediate arm 170 to control the rotational driving of the joint motor 230.

Of course, it is preferable to include a wireless transmitter and receiver 220 to adjust through wireless communication, and the blower 330 is also particularly preferably configured to be controlled by the controller 210 having a wireless communication module capable of short-range wireless communication. .

In this case, the humidity sensor may be installed inside the housing 10, and the controller 210 and the humidity sensor may be linked to control the driving of the blower 330 according to the detected value.

In addition, since the base panel 11 and the plurality of arms and the fixed base 200 must have durability, insulation, waterproofness, and corrosion resistance (corrosion resistance), the first magnesium phosphate (Mg (H ₂ PO ₄ ) ₂ ) and the first 15 wt% of a mixed solution of aluminum monophosphate (Al (H ₂ PO ₄ ) ₃ ) mixed at a weight ratio of 1: 1, 6.5 wt% of propylene dicarboxylic acid, 1.5 wt% of triglyceride, 3.5 wt% of coal tar, , 8.5 wt% of diarylphthalate, 6.5 wt% of polyethylene glycol phenyl ether, 1.5 wt% of BHT (Butylated HydroxyToluene), 1.0 wt% of rosin, 1.0 wt% of paraffin wax, and the remaining ethylene vinyl acetate. .

Here, the mixed solution of the first magnesium phosphate (Mg (H ₂ PO ₄ ) ₂ ) and the first aluminum phosphate (Al (H ₂ PO ₄ ) ₃ ) in a weight ratio of 1: 1 is supplied through the addition of metal phosphate. Added to enhance insulation.

In addition, the propylene dicarboxylic acid is added as a reactive monomer to impart an anionic functional group to the inside and the surface of the polymer to maintain a firm bonding force.

In addition, the triglyceride is a coating agent mainly composed of ricinoleic acid, and is particularly added to increase surface smoothness of each of the outer and inner surfaces, to increase antifouling properties, and to increase corrosion resistance.

In addition, the coal tar is added to prevent cracking and waterproofing performance, the diarylphthalate is added to enhance adhesion stability by improving adhesion and toughness, the polyethylene glycol phenyl ether prevents the aggregation of particles and uniform It is added to ensure dispersibility and induce even distribution of the waterproofing components.

In addition, the BHT (Butylated HydroxyToluene) is added to prevent the deterioration of the adhesive force by inhibiting the phenomenon that the rubber component is naturally oxidized or aged by ultraviolet rays, heat or air.

In addition, the rosin is a pale yellow or brown transparent liquid remaining after distilling the rosin with water vapor to remove terebin oil, and is added to improve the applicability by adjusting the viscosity while enhancing the binding properties between components.

In addition, the paraffin wax is added to adjust the physical properties.

The ethylene vinyl acetate is a base resin obtained by mixing ethylene and a vinyl acetate monomer.

On the other hand, the base panel 11 used in the field to which the present invention belongs is usually a plate formed of synthetic resin, and has a characteristic of breaking well with hardening when used for a long time.

In particular, it is easy to break during installation work because there is no elastic shock, and a lot of problems due to break occurs during maintenance, in this case, the risk of safety accidents such as electric shock due to short circuit is high.

Thus, the present invention is characterized in that the base panel 11 is specially configured to increase insulation stability and maintain breakage suppression to achieve long life.

To this end, in the present invention, as shown in Figure 8, the mixed resin solution added 1.5% by weight of hexamethylenetetramine (hexamethlyenetetramine) to promote foaming to the polypropylene resin in a primary foam molding machine and foamed at a low magnification panel core Make (11a).

Then, when maintaining the surface temperature of 25-35 ℃ before the panel core (11a) is completely cooled, put into the secondary foam molding machine to make a cavity, and put the mixed resin liquid up and down the panel core (11a), but this time high magnification The base panel 11 is completed by foam molding.

That is, the mixed resin is filled between the panel core (11a) to form the elastic foam layer (11b) to have an elastic buffer structure and rigidity of rigid characteristics, there is no risk of breaking even if used for a long time, electrically insulated It is possible to maintain safety and not to crumble easily, making a very useful plate structure.

At this time, the panel core 11a has a structure in which the '∪∩'-type irregularities are repeated up and down as shown, and the elastic foam layer 11b is formed at the recessed portion.

In particular, the foaming magnification is based on 20 times the high magnification, if it is less than the low magnification, the low magnification increases the rigidity and the rigidity increases, the high magnification is soft, because the stiffness increases the ductility.

In the case of the present invention, the panel core 11a is foamed and molded to have a relatively rigid rigidity by forming a low-power, low-power, and more precise 8-times foaming ratio, thereby forming a kind of skeleton.

In addition, the elastic foam layer (11b) is configured to have a high elastic foaming capacity of the high foaming ratio, more precisely 32 to a foaming magnification to maintain the softness to maintain the softness of the elastic buffer.

When the base panel 11 is made in this manner, it is possible to solve the fracture problem and the crack problem, and at the same time, it is possible to secure insulation safety.

In particular, since the panel core 11a has a '∪∩' type concave-convex surface, the fixing member is fixed to a rigid part even when fixing the fixing member or the like, so that the panel core 11a is not a problem at all in terms of durability.

In addition, in the present invention, in order to prevent the inside of the housing 10 from being deteriorated by a fire due to heat generation, a cooling unit 400 may be further provided to blow small and cooled air as illustrated in FIGS. 9 to 10. .

The cooling unit 400 includes a cooling air tank 430 fixed to one side of the housing 10 and a cooling air supply unit 440 installed on an upper surface of the cooling air tank 430, and the cooling air The supply unit 440 is piped with a cooling air discharge pipe 410 capable of discharging cooling air into the housing 10, and at a lower position than the cooling air discharge pipe 410, heat exchanges and heats up while circulating the inside of the housing 10. A heated air suction pipe 420 is sucked to the suctioned air, one end of the heated air suction pipe 420 is connected to the upper end of one side of the cooling air tank 430 to the elevated air to the cooling air tank 430 It is configured to recover.

In this case, as shown in FIG. 10, the cooling air supply unit 440 is open at one end and the other end is fastened and fixed to the closed cylindrical circulator housing 442 and the open one end of the circulator housing 442. A circulation pump 446 installed in the housing cover 444 and the circulation housing 442 and connected to the discharge end of the cooling air discharge pipe 410 passing through the housing cover 444, and the circulation pump ( Cooling air suction pipe 448 connected to the suction end of the 446 and through the other closed end of the circulator housing 442 to suck the cooling air stayed in the cooling air tank 430, and the circulation of the circulator housing 442 A semicircular shape fixed to the other end of the device storage container 450 having at least two orifice openings 452 formed therein, and accommodated in the device storage container 450 and grounded to an outer circumferential surface of the cooling air suction pipe 448. A pair of copper plates 452 having a heat absorbing side and the copper plate 452 A tube cooling thermoelectric element 454 and a heat generating side exposed to the aperture opening portion 452 of the element storage container 450 and the element storage container 450 to fix the tube cooling thermoelectric element 454. And a device fixing tool 456 having a heat dissipation hole 458 screwed to an outer circumferential surface thereof and having a heat dissipation hole 458 exposed in the air of the tube cooling thermoelectric element 454.

At this time, the circulation pump 446 is discharged after sucking the cooling air of the cooling air tank 430 through the cooling air suction pipe 448 connected to the suction end while the impeller is rotated by the driving of the circulation motor (M) installed together The cooling air is discharged through the cooling air discharge pipe 410 connected to the stage to cool the inside of the housing 10, and the cooling air is recovered to the cooling air tank 430 through the elevated air suction pipe 420 after circulation.

The inside of the circulator housing 442 is filled with silica gel 460 to absorb moisture generated from the outer surface of the cooling air suction pipe 448 due to the temperature difference so that water does not accumulate inside the circulator housing 442.

In addition, a part of the length of the cooling air suction pipe 448 may be further provided with a ball filter 470, the ball filter 470 is a cylindrical housing shape, a portion of the length of the cooling air suction pipe 448 is segmented Each end is connected to both ends of the ball filter 470.

In addition, the ball filter 470 is a unique filter that filters foreign matter through the pores formed by the spherical ball filter embedded therein, the ball filter 470 is 40% by weight of silica gel, 2.5 propylene dicarboxylic acid 2.5 15% by weight, 15% by weight of hydrogen silsesquioxane resin, 1.5% by weight of gemstone powder having a particle size of 0.02 mm, 1.5% by weight of triglycerides, 2.0% by weight of aluminum hydroxide, and 1.5% by weight of polyethylene glycol phenylether It is molded into a synthetic resin consisting of% and the remaining PVC sol.

At this time, the silica gel maintains a dehumidifying function, propylene dicarboxylic acid is added to maintain the strong bonding force between the ball filter components by imparting anionic functional groups to the inside and the surface of the polymer as a reactive monomer, hydrogen silsesquioxane Resin is a polymer composed of trifunctional siloxane units whose main skeleton is substituted with hydroxyl groups, triorganosiloxy groups, or dimethylhydrogensiloxy groups in terms of molecular structure. It maintains oil-proof properties while expressing.

In addition, the precious stone powder has a three-dimensional network structure, contributing to the formation of voids in the ball filter to enhance moisture hygroscopicity, increase the filtering effect as a pore membrane filter, triglycerides as a coating agent mainly containing ricinoleic acid It is added to increase the corrosion resistance and to strengthen the durability of the ball filter.

In addition, aluminum hydroxide is added as an amphoteric hydrate of aluminum to prevent hydrophobicity and induce hydrophilicity to enhance hygroscopicity, and polyethylene glycol phenylether is added to prevent aggregation of particles and to ensure uniform dispersibility.

The PVC sol becomes a base resin added to increase moldability while preventing shrinkage.

In addition, a tank cooling device 500 is installed on the bottom surface of the cooling air tank 430. The tank cooling device 500 is also a TEM device, and the endothermic side is maintained on the tank bottom surface. The heating side is disposed to be exposed to the outside through the bottom surface.

To this end, the bottom surface of the cooling air tank 430 is cut to a certain size, the tank cooling element 500 is fixed in the form fitted to the bottom surface may be configured to be exposed to the heat absorbing side to the outside.

This configuration can cool the inside of the cooling air tank 430 even more smoothly. In addition, the power required for this may be a commercial power source or a battery.

10: power distribution box 11: base panel
12: branch circuit 13: switchgear
14: input terminal 15: output terminal
16: lead wire 17: lead wire

Claims (1)

An intermediate position between the base panel 11 made of an insulating material provided therein, the branch circuit 12 having the input terminal 14 and the output terminal 15 installed on the base panel 11, and the branch circuit 12. A switch 13 provided to connect or cut off the branch circuit 12, a lead wire 16 and a lead wire respectively connected to the input terminal 14 and the output terminal 15 formed on the branch circuit 12. In a distribution box of a multi-unit house having a housing (10) having a (17);
The housing 10 is formed in a rectangular box shape having a door DR; Vent holes PA of the same size are formed at the upper front end and the lower end of the housing 10; The through hole 110 is formed in the center of the plate surface of the base panel 11; A plurality of insertion guide ribs 120 having a 'b' shape are formed on the rear surface of the base panel 11 at the center thereof; The fixing plate 130 is inserted into the insertion guide rib 120; A fixing groove 140 corresponding to the through hole 110 is formed at the center of the fixing plate 130. The upper arm 150 is integrally fixed to the rear surface of the fixing plate 130 to be perpendicular to the plate thickness direction; An upper joint 160 is fixed to an end of the upper arm 150; One end of the intermediate arm 170 is fixed to the upper joint 160; A lower joint 180 is fixed to the other end of the intermediate arm 170; An upper end of the lower arm 190 is fixed to the lower joint 180; A fixed base 200 is fixed to the other end of the lower arm 190; The fixed base 200 is fixed to the inner bottom surface of the housing 10 is configured to fold the base panel (11);
The base panel 11 is a panel core (11a) made by adding a mixed resin solution containing 1.5% by weight of hexamethlyenetetramine to promote foaming in a polypropylene resin into a primary foam molding machine and foamed at low magnification. ; When maintaining the surface temperature of 25-35 ℃ before the panel core (11a) is completely cooled, put into the secondary foam molding machine to make a cavity, and put the mixed resin liquid up and down the panel core (11a) and foam molding at high magnification. The elastic resin layer (11b) is formed while the mixed resin is filled between the panel core (11a); wherein the low magnification is a foaming magnification of 8 times magnification, the rigidity is increased, the high magnification is 32 times magnification It is a foaming ratio in which ductility is increased as a magnification, and the panel core 11a has a structure in which '∪∩' type irregularities are repeated up and down;
The base panel 11 and the fixed base 200 have a first magnesium phosphate (Mg (H ₂ PO ₄ ) ₂ ) and a first aluminum phosphate (Al (H ₂ PO ₄ )) to further provide water resistance in addition to insulation and corrosion resistance. ₃ ) 15% by weight of the mixed solution mixed at a weight ratio of 1: 1, 6.5% by weight of propylene dicarboxylic acid for imparting anionic functionality to the inside and the surface of the polymer, and to form a film to increase surface smoothness and impart antifouling properties. 1.5% by weight of triglycerides, 3.5% by weight of coal tar to impart crack control and waterproofing properties, 8.5% by weight of diaryphthalate to improve adhesion and toughness and to impart adhesion stability, and to prevent particle aggregation and uniform dispersion 6.5% by weight of polyethylene glycol phenyl ether, 1.5% by weight of BHT (Butylated HydroxyToluene), 1.0% by weight of rosin, 1.0% by weight of paraffin wax, and the remaining ethylene vinyl acetate Molded into a composition consisting of:
The housing 10 is further installed in the cooling unit 400, the cooling unit 400 is the cooling air tank 430 fixed to one side of the housing 10 and the cooling air tank 430 The cooling air supply unit 440 is provided on the upper surface, and the cooling air supply pipe 410 is piped to the cooling air discharge pipe 410 for discharging the cooling air into the housing 10, the cooling air discharge pipe 410 At a lower position, a temperature rising air suction pipe 420 is ducted to circulate the inside of the housing 10 and sucks up the heated air, and one end of the temperature rising air suction pipe 420 is one of the cooling air tanks 430. Connected to the upper side of the side surface and configured to recover the heated air to the cooling air tank 430;
The cooling air supply unit 440 has one end is opened and the other end is a closed cylindrical circulator housing 442, a housing cover 444 fastened and fixed to the open end of the circulator housing 442, the circulator housing A circulation air pump 446 installed inside the 442 and passing through the housing cover 444 is connected to the discharge end, and connected to the suction end of the circulation pump 446, and the circulation housing. Cooling air suction pipe 448 for sucking the cooling air staying in the cooling air tank 430 through the other closed end of the (442) and the other end of the circulator housing 442 is fixed to at least two around And a pair of copper plates 452 having a semicircular shape that is housed in the element storage cylinder 450 and grounded to an outer circumferential surface of the cooling air suction pipe 448. The heat absorbing side is grounded on the copper plate 452, and the heat generating side stores the The tube cooling thermoelectric element 454 installed to be exposed to the aperture opening 452 of the 450 and the outer peripheral surface of the element storage container 450 to be fixed to the tube cooling thermoelectric element 454 to be fixed to the tube An element fixing tool 456 having a heat dissipation hole 458 such that the heat generating side of the cooling thermoelectric element 454 is exposed to air;
The inside of the circulator housing 442 is filled with a silica gel 460, a ball filter 470 is further installed in a portion of the cooling air suction pipe 448, the ball filter 470 is a spherical shape therein 40% by weight of silica gel, 2.5% by weight of propylene dicarboxylic acid, 15% by weight of hydrogen silsesquioxane resin, and a particle size of 0.02mm. The synthetic resin comprising 1.5% by weight of jewels having precious stones, 1.5% by weight of triglycerides, 2.0% by weight of aluminum hydroxide, 1.5% by weight of polyethylene glycol phenyl ether, and the remaining PVC sol. Distribution box.

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