CN111404064A - High heat dissipating switch board - Google Patents
High heat dissipating switch board Download PDFInfo
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- CN111404064A CN111404064A CN202010341577.4A CN202010341577A CN111404064A CN 111404064 A CN111404064 A CN 111404064A CN 202010341577 A CN202010341577 A CN 202010341577A CN 111404064 A CN111404064 A CN 111404064A
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- 238000009826 distribution Methods 0.000 claims abstract description 95
- 230000017525 heat dissipation Effects 0.000 claims abstract description 15
- 238000005192 partition Methods 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 55
- 239000008187 granular material Substances 0.000 claims description 37
- 239000012528 membrane Substances 0.000 claims description 21
- 239000007822 coupling agent Substances 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000009998 heat setting Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 7
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 7
- 229920001684 low density polyethylene Polymers 0.000 claims description 7
- 239000004702 low-density polyethylene Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000002356 single layer Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005286 illumination Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 230000035699 permeability Effects 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 10
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- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a high-heat-dissipation 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 power distribution cabinet door, 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. The staff of this high heat dissipating switch board can adjust the position of baffle according to the work demand to satisfy the installation demand, be provided with the little bulb of illumination, can provide the illumination for the maintainer, avoid extra gripping other lighting apparatus, made things convenient for the maintenance, improved staff's work efficiency. 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 with high heat dissipation performance.
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 with high heat dissipation performance 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 with high heat dissipation performance 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 damp-proof cushion layer, the bottom of the damp-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, the middle part of the bottom of the top cover of the power distribution cabinet is fixedly connected with a small lighting bulb, the bottom of the small lighting bulb is movably connected with a partition plate, the left side of the partition plate is movably connected with a U-shaped connecting plate, the left side of the U-shaped connecting plate is fixedly connected with the left side wall of the 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, the 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, the right side fixedly connected with switch board right side wall of lateral wall behind the switch board, 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 manger plate 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 high heat dissipating switch board is provided with the first floor filter screen, second floor filter screen and third layer filter screen, the first floor 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. enters into the internal portion of switch board cabinet, the operation of the electrical components of the internal portion of switch board cabinet has been ensured, the existence of first layer filter screen not only can make steam hardly see through the filter screen infiltration to switch board cabinet internal, still do not influence the exchange of the air of the internal portion of switch board cabinet and outside air, the heat dissipation of switch board is not influenced, the wind energy that the fan blew off can be better blow away the heat that the electrical apparatus.
(2) This high heat dissipating 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, when the staff installs electrical components at first electrical components mounting panel, when second electrical components mounting panel, can place the connecting wire of electrical components first electrical components mounting panel and the back of second electrical components mounting panel in 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 high heat dissipating 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 U-shaped connecting plate on the switch board right side wall is four, it adjusts to have four fender position in other words 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 little bulb of illumination, 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 CN109294056A), 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 high-heat-dissipation power distribution cabinet comprises a power distribution cabinet body 1, wherein a moisture-proof cushion layer 2 is fixedly connected to the bottom of the power distribution cabinet body 1, a power distribution cabinet bottom wall 3 is fixedly connected to the bottom of the moisture-proof cushion layer 2, 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 2, a cabinet door handle 6 is fixedly connected to the right side of the middle of the power distribution cabinet door 5, indicator lamps 7 are fixedly connected to the top of the cabinet door handle 6, the number of the indicator lamps 7 is two, 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, an ammeter placing plate 10 is fixedly connected to the top of the back of the power distribution cabinet door 5, and a winding post 11 is fixedly connected, 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, this high heat dissipating switch board is when using, open switch board cabinet door 5 earlier, open illumination small bulb 14, later the staff installs electrical components in first electrical components mounting panel 18, when second electrical components mounting panel 22, can place first electrical components mounting panel 18 and the back of second electrical components mounting panel 22 with electrical components's connecting wire from the front of first electrical components standing groove 19 and second electrical components standing groove 23, fix the circuit through long waist hole 24 at last, the device can accomplish work.
To sum up, the power distribution cabinet with high heat dissipation performance 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, wherein 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 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 of filter screen 28 not only can make vapor hardly permeate the filter screen into the power distribution cabinet body 1, but also can not affect the exchange of air inside the power distribution cabinet body 1 and external air, the heat dissipation performance of the power distribution cabinet is not affected, the wind energy blown out by the fan 21 can better blow away heat carried by electrical equipment, and the, 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:
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.
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;
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.
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 a KH560 silane coupling agent;
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.
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;
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.
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 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.
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 tensile strength | 160MPa | 153MPa | 152MPa | 147MPa | 149MPa |
| Transverse tensile strength | 200MPa | 193MPa | 192MPa | 187MPa | 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 (4)
1. The utility model provides a high heat dissipating 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 (2), 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 connected to the top of the cabinet door handle (6), an ammeter (8) is fixedly connected to the top of the indicator lamp (7), a voltmeter (9) is fixedly connected to 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, the bottom left side of the winding post (11) is movably connected with a cabinet door lock catch (12), the top of the power distribution cabinet door (5) is movably connected with a power distribution cabinet top cover (13), the bottom middle part of the power distribution cabinet top cover (13) is fixedly connected with a small lighting bulb (14), the bottom of the small lighting 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 of the U-shaped connecting plate (16) is fixedly connected with a power distribution cabinet left side wall (17), the upper end of the middle part of the power distribution cabinet left side wall (17) is movably installed with a first electrical component mounting plate (18), the middle part of the first electrical component mounting plate (18) is provided with a first electrical component placing groove (19), the two sides of the first electrical component placing groove (19) are movably installed with a bolt (20), the middle, the bottom of the fan (21) is fixedly connected with a second electrical appliance element mounting plate (22), a second electrical element placing groove (23) is arranged inside the second electrical element mounting plate (22), the top of the second electrical appliance element placing groove (23) is fixedly connected with a long waist hole (24), the back surface of the long waist hole (24) is fixedly connected with a power distribution cabinet rear side wall (25), the right side of the power distribution cabinet rear side wall (25) is fixedly connected with a power distribution cabinet right side wall (26), a heat dissipation hole (27) is formed in the right side of the right side wall (26) of the power distribution cabinet, a first layer of filter screen (28) is fixedly connected to the left side inside the heat dissipation hole (27), the right side of the first layer of filter screen (28) is fixedly connected with a second layer of filter screen (29), the right side of the second layer of filter screen (29) is fixedly connected with a third layer of filter screen (30), the right side of the third layer of filter screen (30) is fixedly connected with a water retaining sheet (31); 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 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.
2. The switch board with high heat dissipation performance of claim 1, wherein: the number of the indicator lamps (7) is two, and the indicator lamps (7) are electrically connected with the ammeter (8) and the voltmeter (9) and are respectively a voltage indicator lamp and a current indicator lamp; the inside fixedly connected with arc rubber gasket of long waist hole (24).
3. The switch board with high heat dissipation performance of claim 1, wherein: gaps are formed among 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; the power distribution cabinet is characterized in that the top of the left side of the right side wall (26) of the power distribution cabinet is fixedly connected with U-shaped connecting plates (16), and the number of the U-shaped connecting plates (16) is eight.
4. The switch board with high heat dissipation performance of claim 1, wherein: the bottom of the first electrical appliance element mounting plate (18) is fixedly connected with a long waist hole (24); and a first electrical appliance element mounting plate (18) is movably mounted on the inner sides of the right side wall (26) and the left side wall (17) of the power distribution cabinet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341577.4A CN111404064A (en) | 2020-04-27 | 2020-04-27 | High heat dissipating switch board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010341577.4A CN111404064A (en) | 2020-04-27 | 2020-04-27 | High heat dissipating switch board |
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| CN111404064A true CN111404064A (en) | 2020-07-10 |
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