CN111404063B - Power distribution cabinet - Google Patents
Power distribution cabinet Download PDFInfo
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- CN111404063B CN111404063B CN202010341533.1A CN202010341533A CN111404063B CN 111404063 B CN111404063 B CN 111404063B CN 202010341533 A CN202010341533 A CN 202010341533A CN 111404063 B CN111404063 B CN 111404063B
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- power distribution
- distribution cabinet
- filter screen
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
- C08K5/5477—Silicon-containing compounds containing nitrogen containing nitrogen in a heterocyclic ring
Abstract
The invention discloses a power distribution cabinet which comprises a power distribution cabinet body, wherein an indicator lamp is fixedly connected to the top of a cabinet door handle, an ammeter is fixedly connected to the top of the indicator lamp, a power distribution cabinet top cover is movably connected to the top of a cabinet door of the power distribution cabinet, a U-shaped connecting plate is movably connected to the left side of a partition plate, and a second electrical component placing groove is formed in a second electrical component mounting plate. According to the invention, the waterproof breathable film is arranged on the breathable waterproof filter screen, the tensile strength and moisture permeability of the waterproof breathable film are far higher than those of the waterproof breathable film in the prior art, the heat dissipation performance of the power distribution cabinet can be better improved, and the safe operation of the power distribution cabinet is further ensured.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a power distribution cabinet.
Background
A power distribution cabinet, a lighting distribution cabinet and a metering cabinet are separated from each other, the power distribution cabinet is the final-stage equipment of a power distribution system, the power distribution cabinet is the general name of a motor control center, the power distribution cabinet is used in the occasions with more dispersed loads and less loops, the motor control center is used in the occasions with concentrated loads and more loops, the motor control center distributes the electric energy of a certain circuit of the previous-stage power distribution equipment to the nearby loads, the equipment can provide protection, monitoring and control for the loads, the power distribution cabinet is called as a JP cabinet for short, along with the continuous deep reconstruction of rural and urban power grids, a large number of power distribution cabinets are applied to power lines and each power distribution area, the existing power distribution cabinet generally comprises a cabinet body, the front side and the rear side of the cabinet body are respectively provided with a front door and a rear door, namely objects are concentrated into one, the maintenance and the inspection are convenient, and, the importance of which is self evident.
Present switch board business turn over cable is more, so current switch board looks in disorder very much, and very difficult quick the position of looking for corresponding cable, and inside components and parts can be installed to this kind of switch board, but because the position of baffle is unadjustable, if the size of the inside components and parts of installation changes, then is difficult to satisfy the installation demand, still needs extra lighting apparatus to provide light during maintenance, the change circuit, and is very inconvenient.
Disclosure of Invention
The invention aims to provide a power distribution cabinet to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a power distribution cabinet comprises a power distribution cabinet body, wherein the bottom of the power distribution cabinet body is fixedly connected with a power distribution cabinet bottom wall, the bottom of the power distribution cabinet bottom wall is fixedly connected with a moisture-proof cushion layer, the bottom of the moisture-proof cushion layer is fixedly connected with a concrete layer, the front of the top of the power distribution cabinet bottom wall is movably connected with a power distribution cabinet door, the right side of the middle part of the power distribution cabinet door is fixedly connected with a cabinet door handle, the top of the cabinet door handle is fixedly connected with an indicator lamp, the top of the indicator lamp is fixedly connected with an ammeter, the right side of the ammeter is fixedly connected with a voltmeter, the top of the back of the power distribution cabinet door is fixedly connected with an ammeter placing plate, the bottom of the ammeter placing plate is fixedly connected with a winding post, the left side of the bottom of the winding post is movably, the bottom of the small lighting bulb is movably connected with a partition board, the left side of the partition board is movably connected with a U-shaped connecting board, the left side of the U-shaped connecting board is fixedly connected with the left side wall of a power distribution cabinet, the upper end of the middle part of the left side wall of the power distribution cabinet is movably provided with a first electrical component mounting plate, the middle part of the first electrical component mounting plate is provided with a first electrical component placing groove, two sides of the first electrical component placing groove are movably provided with bolts, the middle part of the left side wall of the power distribution cabinet is fixedly connected with a fan, the bottom of the fan is fixedly connected with a second electrical component mounting plate, the inside of the second electrical component mounting plate is provided with a second electrical component placing groove, the top of the second electrical component placing groove is fixedly connected with a long waist hole, the back side of the long waist hole is fixedly connected, the louvre has been seted up on the right side of switch board right side wall, the inside left side fixedly connected with first layer filter screen of louvre, the right side fixedly connected with second floor filter screen of first layer filter screen, the right side fixedly connected with third layer filter screen of second floor filter screen, the right side fixedly connected with water blocking piece of third layer filter screen.
Preferably, the number of pilot lamps is two, and pilot lamp and ampere meter and voltmeter electric connection are voltage indicator and current indicator respectively.
Preferably, gaps are formed among the first electrical appliance element mounting plate, the second electrical appliance element mounting plate and the rear side wall of the power distribution cabinet.
Preferably, the top of the left side of the right side wall of the power distribution cabinet is fixedly connected with eight U-shaped connecting plates.
Preferably, the bottom of the first electrical component mounting plate is fixedly connected with a long waist hole.
Preferably, a first electrical appliance element mounting plate is movably mounted on the inner sides of the right side wall and the left side wall of the power distribution cabinet.
Preferably, the inside of the long waist hole is fixedly connected with an arc-shaped rubber gasket.
The first layer of filter screen is a breathable waterproof filter screen, the second layer of filter screen is a particle filter screen, and the third layer of filter screen is a sediment dust filter screen;
the breathable waterproof filter screen is provided with a waterproof breathable film, and the waterproof breathable film comprises the following components in parts by weight: 32 parts of polypropylene resin, 52 parts of ground limestone powder, 2 parts of coupling agent, 5 parts of linear low-density polyethylene resin and 6 parts of low-density polyethylene;
the coupling agent has the following structural formula:
the preparation process of the waterproof breathable film comprises the following steps:
s1 mixing and extruding the raw materials to obtain granules, adding the granules into a double-screw extruder, heating the granules to a molten state, filtering the granules, extruding the granules into a membrane through a single-layer die head, and attaching the membrane onto a chill roll by using a high-pressure air knife to quench the membrane to form a cast sheet;
preheating an S2 casting sheet at the temperature of 136 ℃ and 140 ℃, and longitudinally stretching by 5.2 times to obtain a thick film;
preheating the S3 thick film at 178-180 ℃, transversely stretching by 6 times, performing heat setting, and then rapidly cooling and setting;
and S4, putting the film cooled and shaped in the step S3 into a traction system for flattening, measuring the thickness, and rolling to obtain a finished product.
Compared with the prior art, the invention has the beneficial effects that:
(1) this switch board is provided with the first layer filter screen, second floor filter screen and third layer filter screen, the first layer filter screen is ventilative waterproof filter screen, the second floor filter screen is the granule filter screen, the third layer filter screen is silt dust filter screen, the effectual external dust granule that prevents of second floor filter screen and third layer filter screen etc. enter into the internal portion of switch board cabinet, the electric components's of the internal portion of switch board cabinet operation has been ensured, the existence of first layer filter screen not only can make steam hardly see through the filter screen and permeate into the switch board cabinet internally, still do not influence the exchange of the air of the internal portion of switch board cabinet and outside air, do not influence the thermal diffusivity of switch board, the wind energy that the fan blew off can be better blow away the heat that the electrical.
(2) This switch board is provided with first electrical components mounting panel and second electrical components mounting panel, first electrical components mounting panel, there is the gap between the back of second electrical components mounting panel and the switch board rear side wall, install electrical components at first electrical components mounting panel when the staff, during the second electrical components mounting panel, can place the back of first electrical components mounting panel and second electrical components mounting panel with electrical components's connecting wire from the front of first electrical components standing groove and second electrical components standing groove, can guarantee the pleasing to the eye of the inside wiring of switch board, make things convenient for the maintainer to seek the circuit.
(3) This switch board is provided with the U-shaped connecting plate, the left side top fixedly connected with U-shaped connecting plate of switch board right side wall, the quantity of U-shaped connecting plate is eight, the quantity of the U-shaped connecting plate on the switch board right side wall is four, it adjusts to have four fender position in other words to be equivalent to the baffle, the staff can adjust the position of baffle according to the work demand, thereby satisfy the installation demand, be provided with the illumination small bulb, can provide the illumination for the maintainer, avoid extra gripping other lighting apparatus, the overhaul is made things convenient for, staff's work efficiency has been improved.
(4) According to the invention, the waterproof breathable film is arranged on the breathable waterproof filter screen, the tensile strength and moisture permeability of the waterproof breathable film are far higher than those of the waterproof breathable film in the prior art (such as CN 109294056A), the heat dissipation performance of the power distribution cabinet can be better improved, and the safe operation of the power distribution cabinet is further ensured.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the cabinet door handle taken from FIG. 1;
FIG. 4 is a schematic view of the internal structure of the right side wall of the power distribution cabinet cut out in FIG. 2;
FIG. 5 is a schematic view of the internal structure of the louvers taken in FIG. 2.
In the figure: 1 switch board cabinet body, 2 dampproofing bed course, 3 switch board diapire, 4 concrete layer, 5 switch board cabinet doors, 6 cabinet door handles, 7 pilot lamps, 8 ampere meters, 9 voltmeter, 10 ammeter are placed the board, 11 winding posts, 12 cabinet door hasp, 13 switch board top cap, 14 little bulbs of illumination, 15 baffles, 16U-shaped connecting plate, 17 switch board left side wall, 18 first electrical components mounting panel, 19 first electrical components standing groove, 20 bolts, 21 fan, 22 second electrical components mounting panel, 23 second electrical components standing groove, 24 long waist hole, 25 switch board rear side wall, 26 switch board right side wall, 27 louvres, 28 first layer filter screen, 29 second floor filter screen, 30 third layer filter screen, 31 water retaining piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides a technical solution: a power distribution cabinet comprises a power distribution cabinet body 1, wherein the bottom of the power distribution cabinet body 1 is fixedly connected with a moisture-proof cushion layer 2, the bottom of the moisture-proof cushion layer 2 is fixedly connected with a power distribution cabinet bottom wall 3, the bottom of the power distribution cabinet bottom wall 3 is fixedly connected with a concrete layer 4, the front of the top of the power distribution cabinet bottom wall 2 is movably connected with a power distribution cabinet door 5, the right side of the middle part of the power distribution cabinet door 5 is fixedly connected with a cabinet door handle 6, the top of the cabinet door handle 6 is fixedly connected with two indicator lamps 7, the indicator lamps 7 are electrically connected with an ammeter 8 and a voltmeter 9 and are respectively a voltage indicator lamp and a current indicator lamp, the top of the indicator lamp 7 is fixedly connected with an ammeter 8, the right side of the ammeter 8 is fixedly connected with a voltmeter 9, the top of the back of the power distribution cabinet door, the bottom left side of the winding post 11 is movably connected with a cabinet door lock 12, the top of a cabinet door 5 of the power distribution cabinet is movably connected with a cabinet top cover 13, the middle part of the bottom of the cabinet top cover 13 is fixedly connected with a small illuminating bulb 14, the bottom of the small illuminating bulb 14 is movably connected with a partition plate 15, the left side of the partition plate 15 is movably connected with a U-shaped connecting plate 16, the left side top of the right side wall 26 of the power distribution cabinet is fixedly connected with the U-shaped connecting plate 16, the number of the U-shaped connecting plates 16 is eight, the number of the U-shaped connecting plates 16 on the right side wall 26 of the power distribution cabinet is four, four gears corresponding to the partition plate 15 can be adjusted, a worker can adjust the position of the partition plate according to the working requirement, thereby the installation requirement is met, the small illuminating bulb 14 is arranged, and illumination can be provided for, avoiding additional holding of other lighting fixtures, facilitating maintenance and improving the working efficiency of workers, wherein the left side of the U-shaped connecting plate 16 is fixedly connected with the left side wall 17 of the power distribution cabinet, the upper end of the middle part of the left side wall 17 of the power distribution cabinet is movably provided with a first electrical component mounting plate 18, a gap is arranged between the first electrical component mounting plate 18 and a second electrical component mounting plate 22 and the rear side wall 25 of the power distribution cabinet, a gap is arranged between the back surfaces of the first electrical component mounting plate 18 and the second electrical component mounting plate 22 and the rear side wall 25 of the power distribution cabinet, when the workers mount electrical components on the first electrical component mounting plate 18 and the second electrical component mounting plate 22, the connecting wires of the electrical components can be placed on the back surfaces of the first electrical component mounting plate 18 and the second electrical component mounting plate 22 from the front surfaces of the first electrical component placing groove 19 and the second electrical component placing groove 23, so, the circuit is convenient for maintenance personnel to search a circuit, a first electrical component placing groove 19 is formed in the middle of a first electrical component mounting plate 18, bolts 20 are movably mounted on two sides of the first electrical component placing groove 19, a fan 21 is fixedly connected to the middle of a left side wall 17 of a power distribution cabinet, a second electrical component mounting plate 22 is fixedly connected to the bottom of the fan 21, a second electrical component placing groove 23 is formed in the second electrical component mounting plate 22, a long waist hole 24 is fixedly connected to the top of the second electrical component placing groove 23, a long waist hole 24 is fixedly connected to the bottom of the first electrical component mounting plate 18, an arc-shaped rubber gasket is fixedly connected to the inside of the long waist hole 24, a power distribution cabinet rear side wall 25 is fixedly connected to the back of the long waist hole 24, a power distribution cabinet right side wall 26 is fixedly connected to the right side wall 25 of the power distribution cabinet, and the first electrical component mounting plate 18, the right side of the right side wall 26 of the power distribution cabinet is provided with a heat dissipation hole 27, the left side inside the heat dissipation hole 27 is fixedly connected with a first layer filter screen 28, the first layer filter screen 28 is a breathable waterproof filter screen, a second layer filter screen 29 is a particle filter screen, a third layer filter screen 30 is a silt dust filter screen, the first layer filter screen 28 is a breathable waterproof filter screen, the second layer filter screen 29 is a particle filter screen, the third layer filter screen 30 is a silt dust filter screen, the second layer filter screen 29 and the third layer filter screen 30 effectively prevent external dust particles and the like from entering the inside of the power distribution cabinet body 1, the operation of electrical components inside the power distribution cabinet body 1 is ensured, the existence of the first layer filter screen 28 not only can make water vapor difficultly permeate the filter screens to permeate into the power distribution cabinet body 1, but also does not influence the exchange, the wind energy that fan 21 blew out can be better blows off the heat that the electrical apparatus carried, and the right side fixedly connected with second layer filter screen 29 of first layer filter screen 28, the right side fixedly connected with third layer filter screen 30 of second layer filter screen 29, the right side fixedly connected with manger plate piece 31 of third layer filter screen 30.
In use, when the power distribution cabinet is used, the cabinet door 5 of the power distribution cabinet is firstly opened, the small illuminating bulbs 14 are opened, then a worker installs electrical components on the first electrical component mounting plate 18 and the second electrical component mounting plate 22, the connecting wires of the electrical components can be placed on the back surfaces of the first electrical component mounting plate 18 and the second electrical component mounting plate 22 from the front surfaces of the first electrical component placing groove 19 and the second electrical component placing groove 23, and finally the circuits are fixed through the long waist holes 24, so that the device can complete work.
To sum up, the power distribution cabinet is provided with a first layer of filter screen 28, a second layer of filter screen 29 and a third layer of filter screen 30, the first layer of filter screen 28 is a breathable waterproof filter screen, the second layer of filter screen 29 is a particle filter screen, the third layer of filter screen 30 is a silt dust filter screen, the second layer of filter screen 29 and the third layer of filter screen 30 effectively prevent external dust particles and the like from entering the interior of the cabinet body 1 of the power distribution cabinet, the operation of electrical components inside the cabinet body 1 of the power distribution cabinet is ensured, the existence of the first layer of filter screen 28 not only can make vapor hardly permeate into the cabinet body 1 of the power distribution cabinet through the filter screens, but also can not affect the exchange of air inside the cabinet body 1 of the power distribution cabinet and external air, and can not affect the heat dissipation performance of the power distribution cabinet, the wind energy blown out by the fan 21 can better, gaps are formed between the back surfaces of the first electrical component mounting plate 18 and the second electrical component mounting plate 22 and the rear side wall 25 of the power distribution cabinet, when an operator installs electrical components on the first electrical component mounting plate 18 and the second electrical component mounting plate 22, connecting wires of the electrical components can be placed on the back surfaces of the first electrical component mounting plate 18 and the second electrical component mounting plate 22 from the front surfaces of the first electrical component placing groove 19 and the second electrical component placing groove 23, the attractiveness of wiring inside the power distribution cabinet can be guaranteed, maintenance personnel can conveniently find circuits, the power distribution cabinet is provided with the U-shaped connecting plate 16, the U-shaped connecting plate 16 is fixedly connected to the top of the left side of the right side wall 26 of the power distribution cabinet, the number of the U-shaped connecting plates 16 is eight, the number of the U-shaped connecting plates 16 on the right side wall 26 of the power distribution cabinet is four, equivalently, the four gears can be arranged on the, thereby satisfy the installation demand, be provided with illumination small bulb 14, can provide the illumination for the maintainer, avoid extra holding other lighting apparatus, made things convenient for the maintenance, improved staff's work efficiency.
Example 2
The breathable waterproof filter screen in the embodiment 1 is provided with a waterproof breathable film, and the waterproof breathable film comprises the following components in parts by weight: 32 parts of polypropylene resin, 52 parts of ground limestone powder, 2 parts of coupling agent, 5 parts of linear low-density polyethylene resin and 6 parts of low-density polyethylene;
the coupling agent has the following structural formula:
comparative example 1
The breathable waterproof filter screen is provided with a waterproof breathable film, and the waterproof breathable film comprises the following components in parts by weight: 32 parts of polypropylene resin, 52 parts of ground limestone powder, 2 parts of coupling agent, 5 parts of linear low-density polyethylene resin and 6 parts of low-density polyethylene;
the coupling agent is a kH550 silane coupling agent.
Comparative example 2
The breathable waterproof filter screen is provided with a waterproof breathable film, and the waterproof breathable film comprises the following components in parts by weight: 32 parts of polypropylene resin, 52 parts of ground limestone powder, 2 parts of coupling agent, 5 parts of linear low-density polyethylene resin and 6 parts of low-density polyethylene;
the coupling agent is KH560 silane coupling agent.
Comparative example 3
The breathable waterproof filter screen is provided with a waterproof breathable film, and the waterproof breathable film comprises the following components in parts by weight: 32 parts of polypropylene resin, 52 parts of ground limestone powder, 2 parts of coupling agent, 5 parts of linear low-density polyethylene resin and 6 parts of low-density polyethylene;
the coupling agent is KR-38S titanate coupling agent.
Comparative example 4
The breathable waterproof filter screen is provided with a waterproof breathable film, and the waterproof breathable film comprises the following components in parts by weight: 32 parts of polypropylene resin, 52 parts of ground limestone powder, 2 parts of coupling agent, 5 parts of linear low-density polyethylene resin and 6 parts of low-density polyethylene;
the coupling agent is KR-TTS titanate coupling agent.
The physical and chemical properties of the waterproof breathable films prepared by the above example 2 and comparative examples 1 to 4 are shown in the following table:
| test items | Example 2 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Longitudinal directionTensile strength | 160 MPa | 153 MPa | 152 MPa | 147 MPa | 149MPa |
| Transverse tensile strength | 200 MPa | 193 MPa | 192 MPa | 187 MPa | 190MPa |
| Moisture permeability g/m2×24h | 3800 | 3500 | 3500 | 3200 | 3300 |
From the above results, it can be seen that the present invention found a specific coupling agent capable of greatly improving the tensile strength and moisture permeability of waterproof breathable films among a large number of available coupling agents (including but not limited to those listed in comparative examples 1 to 4) as compared with silane coupling agents and titanate coupling agents commonly used in the art, which has a better coupling effect, and the tensile strength and moisture permeability are far superior to those of the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a switch board, includes switch board cabinet body (1), its characterized in that: the power distribution cabinet is characterized in that a moisture-proof cushion layer (2) is fixedly connected to the bottom of a power distribution cabinet body (1), a power distribution cabinet bottom wall (3) is fixedly connected to the bottom of the power distribution cabinet bottom wall (3), a concrete layer (4) is fixedly connected to the bottom of the power distribution cabinet bottom wall (3), a power distribution cabinet door (5) is movably connected to the front of the top of the power distribution cabinet bottom wall (3), a cabinet door handle (6) is fixedly connected to the right side of the middle of the power distribution cabinet door (5), an indicator lamp (7) is fixedly arranged above the cabinet door handle (6), an ammeter (8) is fixedly arranged above the indicator lamp (7), a voltmeter (9) is fixedly arranged on the right side of the ammeter (8), an ammeter placing plate (10) is fixedly connected to the top of the back of the power distribution cabinet door (5), and a, a cabinet door lock catch (12) is movably arranged on the left side of the bottom of the winding post (11), a power distribution cabinet top cover (13) is movably connected to the top of the power distribution cabinet door (5), a small lighting bulb (14) is fixedly connected to the middle of the bottom of the power distribution cabinet top cover (13), a partition plate (15) is movably arranged on the bottom of the small lighting bulb (14), a U-shaped connecting plate (16) is movably connected to the left side of the partition plate (15), a power distribution cabinet left side wall (17) is fixedly connected to the left side of the U-shaped connecting plate (16), a first electrical component mounting plate (18) is movably mounted at the upper end of the middle of the power distribution cabinet left side wall (17), a first electrical component placing groove (19) is formed in the middle of the first electrical component mounting plate (18), bolts (20) are movably mounted on two sides of the first electrical component placing groove (19), and a fan, a second electrical component mounting plate (22) is fixedly arranged at the bottom of the fan (21), a second electrical component placing groove (23) is formed in the second electrical component mounting plate (22), a power distribution cabinet right side wall (26) is fixedly connected to the right side of a power distribution cabinet rear side wall (25), a heat dissipation hole (27) is formed in the right side of the power distribution cabinet right side wall (26), a first layer of filter screen (28) is fixedly connected to the left side of the interior of the heat dissipation hole (27), a second layer of filter screen (29) is fixedly connected to the right side of the first layer of filter screen (28), a third layer of filter screen (30) is fixedly connected to the right side of the second layer of filter screen (29), and a water retaining sheet (31) is fixedly connected to the right; the first layer of filter screen (28) is a breathable waterproof filter screen, the second layer of filter screen (29) is a particle filter screen, and the third layer of filter screen (30) is a silt and dust filter screen; the top of the left side of the right side wall (26) of the power distribution cabinet is fixedly connected with a U-shaped connecting plate (16); the number of all the U-shaped connecting plates (16) is eight;
the breathable waterproof filter screen is provided with a waterproof breathable film, and the waterproof breathable film comprises the following components in parts by weight: 32 parts of polypropylene resin, 52 parts of ground limestone powder, 2 parts of coupling agent, 5 parts of linear low-density polyethylene resin and 6 parts of low-density polyethylene;
the coupling agent has the following structural formula:
2. a switch board according to claim 1, characterized in that: the number of the indicator lamps (7) is two, and the two indicator lamps (7) are respectively electrically connected with the ammeter (8) and the voltmeter (9) and used as a current indicator lamp and a voltage indicator lamp; gaps are arranged between the first electrical appliance element mounting plate (18), the second electrical appliance element mounting plate (22) and the rear side wall (25) of the power distribution cabinet.
3. A switch board according to claim 1, characterized in that: switch board right side wall (26) and the inboard movable mounting of switch board left side wall (17) have first electrical components mounting panel (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| JP2009106030A (en) * | 2007-10-22 | 2009-05-14 | San'eisha Mfg Co Ltd | Humidity conditioning structure of box for storing apparatus |
| CN101659769B (en) * | 2009-09-17 | 2011-09-21 | 宁波山泉建材有限公司 | Waterproof air and moisture permeable microporous film, three-layer composite material and preparation method and application thereof |
| KR101464271B1 (en) * | 2012-09-19 | 2014-11-24 | 주식회사 케이씨씨 | Heat Curable silicone composition and the light emitting device using the same |
| EP3020750A4 (en) * | 2013-07-08 | 2017-01-25 | Momentive Performance Materials Japan LLC | Adhesiveness-imparting agent, adhesive polyorganosiloxane composition, and optical semiconductor device |
| CN208316116U (en) * | 2018-02-09 | 2019-01-01 | 福建群龙开关有限公司 | A kind of power distributing cabinet |
| CN109294056A (en) * | 2018-09-04 | 2019-02-01 | 安徽国风塑业股份有限公司 | A kind of Biaxially oriented polypropylene waterproof ventilated membrane and preparation method thereof |
| CN209556896U (en) * | 2018-11-02 | 2019-10-29 | 河北沃勒门窗制造有限公司 | A kind of window with multilayer filter structure |
| CN209183985U (en) * | 2019-01-15 | 2019-07-30 | 孙雪 | A kind of architectural electricity cabinet convenient to overhaul |
| CN210350440U (en) * | 2019-09-03 | 2020-04-17 | 安徽煜源电气设备有限公司 | High-low voltage switch cabinet |
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Effective date of registration: 20210111 Address after: 311401 No.2, Central Road, Dongzhou Industrial Park, Dongzhou street, Fuyang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Gangtong Technology Co.,Ltd. Address before: 2-3-2a030, second floor, building 3, zone 2, Hexin 2025, Jinan innovation Valley, hi tech Zone, Jinan City, Shandong Province Applicant before: Jinan Kunpeng Technology Development Center |