CN111211497B - Power distribution cabinet - Google Patents

Power distribution cabinet Download PDF

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Publication number
CN111211497B
CN111211497B CN202010042781.6A CN202010042781A CN111211497B CN 111211497 B CN111211497 B CN 111211497B CN 202010042781 A CN202010042781 A CN 202010042781A CN 111211497 B CN111211497 B CN 111211497B
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China
Prior art keywords
power distribution
distribution cabinet
top cover
cabinet body
shell
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CN202010042781.6A
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Chinese (zh)
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CN111211497A (en
Inventor
吴桢
严钱涛
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Hebei Huawei Electric Equipment Technology Co ltd
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ANHUI MINGYUAN POWER EQUIPMENT MANUFACTURE Ltd
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Priority to CN202010042781.6A priority Critical patent/CN111211497B/en
Publication of CN111211497A publication Critical patent/CN111211497A/en
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • 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
    • H02B1/306—Accessories, e.g. windows
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Patch Boards (AREA)

Abstract

The invention discloses a power distribution cabinet, which relates to the field of power distribution cabinets and comprises a power distribution cabinet body 3; the power distribution cabinet comprises a power distribution cabinet shell, wherein the power distribution cabinet shell is used for placing a power distribution cabinet body 3, and the power distribution cabinet body 3 is connected with the power distribution cabinet shell in a sliding manner; the top cover 5, top cover 5 are whole arc, and top cover 5 and switch board body 3 rotate through sector plate 4 and are connected, sector plate 4 is connected with the cooperation of switch board shell. The problem that when the power distribution cabinet is installed outdoors, the power distribution cabinet is usually directly exposed in the air, and in rainy and snowy weather, water is accumulated on the surface of the power distribution cabinet, so that short circuit and electric shock are easily caused is solved; in windy weather, the outdoor switch board has been amassed the problem of dust more easily.

Description

Power distribution cabinet
Technical Field
The invention relates to the field of power distribution cabinets, in particular to a power distribution cabinet.
Background
The distribution cabinet (case) is a final-stage device of a distribution system and is divided into a power distribution cabinet (case), a lighting distribution cabinet (case) and a metering cabinet (case). The power distribution cabinet is a general name of a motor control center. The power distribution cabinet is used in the occasions with dispersed loads and less loops; the motor control center is used for occasions with concentrated loads and more loops. They distribute the power of a certain circuit of the upper-level distribution equipment to the nearby loads. This level of equipment should provide protection, monitoring and control of the load.
When the power distribution cabinet is installed outdoors, the power distribution cabinet is usually directly exposed in the air, the arrangement mode is not safe, and in rainy and snowy weather, water is accumulated on the surface of the power distribution cabinet, so that short circuit and electric shock are easy to occur; in windy weather, outdoor switch board has been amassed the dust more easily, influences the normal use of switch board. And the switch board needs regularly to overhaul after using a period of time, no matter be full of the dust or have ponding, all be unfavorable for the maintenance of switch board. The maintainer can be exposed to wind and sunshine when carrying out maintenance, and difficulty is caused to the maintainer.
Disclosure of Invention
The invention aims to provide a power distribution cabinet, which aims to solve the problems that when the power distribution cabinet provided by the background technology is installed outdoors, the power distribution cabinet is usually directly exposed in the air, and in rainy and snowy weather, water is accumulated on the surface of the power distribution cabinet, so that short circuit and electric shock are easy to occur; in windy weather, the outdoor switch board has been amassed the problem of dust more easily.
A power distribution cabinet, which comprises
A power distribution cabinet body 3;
the power distribution cabinet comprises a power distribution cabinet shell, wherein the power distribution cabinet shell is used for placing a power distribution cabinet body 3, and the power distribution cabinet body 3 is connected with the power distribution cabinet shell in a sliding manner;
the top cover 5, the top cover 5 is wholly arc, and top cover 5 and switch board body 3 rotate through sector plate 4 and be connected, sector plate 4 is connected with the cooperation of switch board shell.
As an embodiment of the present invention, the power distribution cabinet enclosure includes two side plates 13, a back plate 11 and a bottom plate 15;
the two side plates 13 are symmetrically arranged on two sides of the bottom plate 15 in parallel;
the back panel 11 is used to connect the bottom panel 15 and the side panels 13 together.
As an embodiment of the present invention, the upper surface of the bottom plate 15 is provided with a slide rail 19, and the power distribution cabinet body 3 is slidably connected to the slide rail 19;
a power distribution cabinet base 33 is arranged at the bottom of the power distribution cabinet body 3, and the power distribution cabinet base 33 is connected with the slide rail 19 in a sliding manner;
a screw 35 is arranged in the middle of the power distribution cabinet base 33 in a threaded manner;
two ends of the screw rod 35 are rotatably connected with the shell of the power distribution cabinet, and the extending end of the screw rod 35 is provided with a pushing motor 31.
As an embodiment of the invention, the sector plate 4 is rotatably connected with the power distribution cabinet body 3 through a rotating shaft, a gear 41 is arranged at an end of the rotating shaft, a rack 17 is embedded on an upper surface of the side plate 13, and the rack 17 is in fit connection with the gear 41.
According to one embodiment of the invention, the middle part of the top cover 5 is a solar cell panel, two sides of the top cover 5 are transparent plates, and the top cover 5 is provided with a shading component.
As an embodiment of the invention, the shading assembly comprises
The two shading shells 53, the shading shells 53 are symmetrically arranged at two sides of the top cover 5, rotating rollers 57 are arranged in the shading shells 53, and the rotating rollers 57 are connected through shading cloth 56;
the supporting parts are arranged on the surface of the top cover 5 at equal intervals and comprise supporting rods 54, the supporting rods 54 are vertically fixed on the surface of the top cover 5, the supporting rods 54 are vertically and rotatably provided with two rollers 55 which are matched with each other, steel cables penetrate through two sides of the shading cloth 56 and are matched and connected with the two rollers 55, and two ends of each steel cable are respectively fixed on the rotating rollers 57;
the motor 59 is connected to the extending end of the rotating roller 57, and the solar cell panel is electrically connected with the motor 59.
In one embodiment of the present invention, the middle portion of the shade cloth 56 is made of a transparent material.
The invention has the beneficial effects that: can be anterior at the switch board body with the dome cover through this device, with switch board body and external isolated division, at the in-process of overhauing, only need promote the switch board body and slide in the switch board shell, the gliding in-process of switch board body, the top cap is also opened gradually, the top cap removes behind the top, can shine the switch board body in the top cap below, can also help the maintainer to hide wind and rain, prevents that the maintainer from being influenced by abominable weather. Under the condition that needs removed switch board body, start driving motor, driving motor rotates the back and can drive the screw rod and also rotate in step, screw rod and base threaded connection promote base reciprocating motion on the screw rod, promote base reciprocating motion on the slide rail. When the sun is very strong, the automobile needs to be irradiated by the sun when being charged, and through the device, when the top cover is completely covered by the shading cloth, the top cover is in an opaque state, and the middle part of the shading cloth is made of transparent materials, so that the normal work of the solar cell panel cannot be influenced; when the temperature is lower, when the weather is colder, people hope more that the sun can be shone when operating the machine, only need during this time with the shading cloth accomodate into the shading shell can, the light can pass the transparent region of top cap both sides and shine down. After the motor is started, the motor drives the rotating roller to rotate, the rotating roller continues to drive the steel cable to be wound on the rotating roller, and the movement of the steel cable can drive the shading cloth to move on the supporting part until the whole top cover is completely covered.
Drawings
Fig. 1 is a main sectional view of a power distribution cabinet according to the present invention;
FIG. 2 is a front view of the shutter assembly;
FIG. 3 is a cross-sectional view of the light blocking housing;
FIG. 4 is a schematic view of the connection between the roller and the cable.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, a power distribution cabinet comprises
A power distribution cabinet body 3;
the power distribution cabinet comprises a power distribution cabinet shell, wherein the power distribution cabinet shell is used for placing a power distribution cabinet body 3, and the power distribution cabinet body 3 is connected with the power distribution cabinet shell in a sliding manner;
the top cover 5, the top cover 5 is wholly arc, and top cover 5 and switch board body 3 rotate through sector plate 4 and be connected, sector plate 4 is connected with the cooperation of switch board shell.
When the power distribution cabinet is installed outdoors, the power distribution cabinet is usually directly exposed in the air, the arrangement mode is not safe, and in rainy and snowy weather, water is accumulated on the surface of the power distribution cabinet, so that short circuit and electric shock are easy to occur; in windy weather, outdoor switch board has been amassed the dust more easily, influences the normal use of switch board. And the switch board needs regularly to overhaul after using a period of time, no matter be full of the dust or have ponding, all be unfavorable for the maintenance of switch board. The maintainer can be exposed to wind and sunshine when carrying out maintenance, and difficulty is caused to the maintainer. Can cover top cap 5 at switch board body 3 front portions through this device, with switch board body 3 with external isolated division, at the in-process of overhauing, only need promote switch board body 3 and slide in switch board shell, the gliding in-process of switch board body 3, top cap 5 is also opened gradually, top cap 5 removes behind the top, can shine switch board body 3 in top cap 5 below, can also help the maintainer to hide the wind and keep off the rain, prevent that the maintainer from being influenced by abominable weather.
The power distribution cabinet shell comprises two side plates 13, a rear plate 11 and a bottom plate 15;
the two side plates 13 are symmetrically arranged on two sides of the bottom plate 15 in parallel;
the back panel 11 is used to connect the bottom panel 15 and the side panels 13 together.
The upper surface of the bottom plate 15 is provided with a slide rail 19, and the power distribution cabinet body 3 is connected with the slide rail 19 in a sliding manner;
a power distribution cabinet base 33 is arranged at the bottom of the power distribution cabinet body 3, and the power distribution cabinet base 33 is connected with the slide rail 19 in a sliding manner;
a screw 35 is arranged in the middle of the power distribution cabinet base 33 in a threaded manner;
two ends of the screw rod 35 are rotatably connected with the shell of the power distribution cabinet, and the extending end of the screw rod 35 is provided with a pushing motor 31.
Under the condition that need remove switch board body 3, start pushing motor 31, pushing motor 31 rotates back and can drive screw rod 35 and also rotate in step, and screw rod 35 and base 33 threaded connection promote base reciprocating motion on screw rod 35, promote base 33 reciprocating motion on slide rail 19.
Sector plate 4 rotates with switch board body 3 through the pivot and is connected, the tip of pivot is provided with gear 41, the upper surface of curb plate 13 inlays and is equipped with rack 17, rack 17 is connected with the gear 41 cooperation.
When the in-process that the switch board body 3 took place to remove, gear 41 takes place to cooperate with rack 17 to be connected, gear 41 takes place to rotate and drives sector plate 4 and takes place synchronous rotation, under the condition of switch board body 3 outside removal, sector plate 4 drives top cap 5 and takes place to rotate, expose switch board body 3 externally, switch board body 3 is at the inside in-process that removes, sector plate 4 drives top cap 5 and takes place synchronous rotation, top cap 5 covers the opening part of switch board body 3 completely, avoid the pedestrian to contact switch board body 3.
The middle part of the top cover 5 is a solar cell panel, the two sides of the top cover 5 are transparent plates, and the top cover 5 is provided with a shading component.
The shading component comprises
Two shading shells 53, the shading shells 53 are symmetrically arranged on two sides of the top cover 5, rotating rollers 57 are arranged in the shading shells 53, and the rotating rollers 57 are connected through shading cloth 56.
The supporting parts are arranged on the surface of the top cover 5 at equal intervals and comprise supporting rods 54, the supporting rods 54 are vertically fixed on the surface of the top cover 5, the supporting rods 54 rotate up and down to be provided with two idler wheels 55 which are matched with each other, steel cables are arranged on two sides of the shading cloth 56 in a penetrating mode and are connected with the two idler wheels 55 in a matching mode, and two ends of each steel cable are fixed on the rotating rollers 57 respectively. When one rotating roller 57 rotates, the steel cable is pulled to be wound, and the steel cable drives the shading cloth 56 to synchronously move while moving, so that the whole top cover 5 is covered;
the motor 59 is connected to the extending end of the rotating roller 57, and the solar cell panel is electrically connected with the motor 59.
The middle portion of the shade cloth 56 is made of transparent material.
Under the condition of very strong sunshine, when the automobile is charged, the automobile needs to be irradiated by the sunshine, through the device, when the top cover 5 is completely covered by the shading cloth 56, the top cover 5 is in an opaque state, and the middle part of the shading cloth 56 is made of transparent materials, so that the normal work of the solar cell panel cannot be influenced, and the shading cloth 56 can cover the transparent parts at the two sides of the top cover 5 to block strong ultraviolet rays, so that people cannot be sunburned by strong light during operation; when the temperature is lower and the climate is cold, people hope to shine the sun when operating the machine, and only the shading cloth 56 needs to be accommodated in the shading shell 53, and the light can penetrate through the transparent areas on the two sides of the top cover 5 to shine. After the motor 59 is started, the motor 59 drives the rotating roller 57 to rotate, the rotation of the rotating roller 57 continues to drive the steel cable to be wound on the rotating roller 57, and the movement of the steel cable drives the shading cloth 56 to move on the supporting part until the whole top cover 5 is completely covered.
The specific working principle and steps are as follows: can cover top cap 5 at switch board body 3 front portions through this device, with switch board body 3 with external isolated division, at the in-process of overhauing, only need promote switch board body 3 and slide in switch board shell, the gliding in-process of switch board body 3, top cap 5 is also opened gradually, top cap 5 removes behind the top, can shine switch board body 3 in top cap 5 below, can also help the maintainer to hide the wind and keep off the rain, prevent that the maintainer from being influenced by abominable weather. Under the condition that need remove switch board body 3, start pushing motor 31, pushing motor 31 rotates back and can drive screw rod 35 and also rotate in step, and screw rod 35 and base 33 threaded connection promote base reciprocating motion on screw rod 35, promote base 33 reciprocating motion on slide rail 19. Under the condition of very strong sunshine, the automobile needs to be irradiated by the sunshine when being charged, through the device, when the top cover 5 is completely covered by the shading cloth 56, the top cover 5 is in an opaque state, and the middle part of the shading cloth 56 is made of transparent materials, so that the normal work of the solar cell panel cannot be influenced, and the shading cloth 56 can cover the transparent parts at the two sides of the top cover 5 to block strong ultraviolet rays, so that people cannot be sunburned by strong light during operation; when the temperature is low and the climate is cold, people hope to shine the sun when operating the machine, and only the shading cloth 56 needs to be contained in the shading shell 53, and the light can penetrate through the transparent areas on the two sides of the top cover 5 to shine. After the motor 59 is started, the motor 59 drives the rotating roller 57 to rotate, the rotation of the rotating roller 57 continues to drive the steel cable to wind on the rotating roller 57, and the movement of the steel cable drives the shading cloth 56 to move on the supporting part until the whole top cover 5 is completely covered.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (3)

1.一种配电柜，其特征在于，包括1. A power distribution cabinet, characterized in that it comprises 配电柜本体；Power distribution cabinet body; 配电柜外壳，所述配电柜外壳用于放置配电柜本体，所述配电柜本体与配电柜外壳滑动连接；a power distribution cabinet shell, the power distribution cabinet shell is used for placing the power distribution cabinet body, and the power distribution cabinet body is slidably connected with the power distribution cabinet shell; 顶盖，所述顶盖整体为圆弧形，且顶盖与配电柜本体通过扇形板转动连接，所述扇形板与配电柜外壳配合连接，The top cover is in the shape of a circular arc as a whole, and the top cover and the power distribution cabinet body are rotatably connected through a fan-shaped plate, and the fan-shaped plate is in cooperation with the power distribution cabinet shell, 所述配电柜外壳包括两块侧板、一块后板和一块底板；The power distribution cabinet shell includes two side plates, a rear plate and a bottom plate; 两块侧板对称平行设于底板两侧；Two side plates are symmetrically arranged on both sides of the bottom plate; 所述后板用于将底板和侧板连接在一起，The rear plate is used to connect the bottom plate and the side plate together, 所述底板上表面设有滑轨，所述配电柜本体与滑轨滑动连接；The upper surface of the bottom plate is provided with a slide rail, and the power distribution cabinet body is slidably connected with the slide rail; 所述配电柜本体底部设置有配电柜底座，所述配电柜底座与滑轨滑动连接；The bottom of the power distribution cabinet body is provided with a power distribution cabinet base, and the power distribution cabinet base is slidably connected to the slide rail; 所述配电柜底座中部螺纹穿设有螺杆；A screw rod is threaded through the middle thread of the base of the power distribution cabinet; 所述螺杆的两端与配电柜外壳转动连接，且螺杆的伸出端设有推动电机，The two ends of the screw rod are rotatably connected with the shell of the power distribution cabinet, and the protruding end of the screw rod is provided with a pushing motor, 所述扇形板通过转轴与配电柜本体转动连接，所述转轴的端部设置有齿轮，所述侧板的上表面嵌设有齿条，所述齿条与齿轮配合连接，The fan-shaped plate is rotatably connected with the power distribution cabinet body through a rotating shaft, the end of the rotating shaft is provided with a gear, the upper surface of the side plate is embedded with a rack, and the rack is matched and connected with the gear, 所述顶盖中间部分为太阳能电池板，顶盖的两侧为透明板，顶盖上装设有遮光组件，The middle part of the top cover is a solar cell panel, the two sides of the top cover are transparent plates, and the top cover is provided with a shading component, 当配电柜本体发生移动的过程中，齿轮与齿条发生配合连接，齿轮发生转动并带动扇形板发生同步转动，配电柜本体向外移动的情况下，扇形板带动顶盖发生转动，将配电柜本体暴露在外部，配电柜本体在向内移动过程中，扇形板带动顶盖发生同步转动，顶盖将配电柜本体的开口处完全盖住。When the power distribution cabinet body moves, the gear and the rack are matched and connected, the gear rotates and drives the fan-shaped plate to rotate synchronously, and when the power distribution cabinet body moves outward, the fan-shaped plate drives the top cover to rotate, and the The power distribution cabinet body is exposed to the outside. During the inward movement of the power distribution cabinet body, the fan-shaped plate drives the top cover to rotate synchronously, and the top cover completely covers the opening of the power distribution cabinet body. 2.根据权利要求1所述的一种配电柜，其特征在于，所述遮光组件包括2 . The power distribution cabinet according to claim 1 , wherein the shading component comprises: 3 . 两个遮光外壳，遮光外壳对称设于顶盖顶部的两侧，遮光外壳内设有转动辊，转动辊之间通过遮光布连接；Two shading shells, the shading shells are symmetrically arranged on both sides of the top of the top cover, the shading shells are provided with rotating rollers, and the rotating rollers are connected by a shading cloth; 若干支撑部，支撑部等间距设于顶盖表面，支撑部包括支撑杆，支撑杆竖直固定于顶盖表面，支撑杆上下转动设置有两个相互配合的滚轮，遮光布的两侧穿设有钢索，钢索与两滚轮配合连接，钢索的两端分别固定于转动辊上；A number of support parts, the support parts are arranged on the surface of the top cover at equal intervals, the support part includes a support rod, the support rod is vertically fixed on the surface of the top cover, the support rod rotates up and down and is provided with two mutually matched rollers, and the two sides of the shading cloth are provided with There is a steel cable, the steel cable is connected with the two rollers, and the two ends of the steel cable are respectively fixed on the rotating rollers; 电机，转动辊的伸出端连接有电机，所述太阳能电池板与电机电性连接。The motor is connected to the extending end of the rotating roller, and the solar cell panel is electrically connected to the motor. 3.根据权利要求2所述的一种配电柜，其特征在于，遮光布中间部分为透明材质。3 . The power distribution cabinet according to claim 2 , wherein the middle part of the shading cloth is made of transparent material. 4 .
CN202010042781.6A 2020-01-15 2020-01-15 Power distribution cabinet Active CN111211497B (en)

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