CN113206470A

CN113206470A - Novel power distribution cabinet

Info

Publication number: CN113206470A
Application number: CN202110538285.4A
Authority: CN
Inventors: 孙坤师; 田珊
Original assignee: State Grid Corp of China SGCC; Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd; Qinghe Power Supply Co of State Grid Hebei Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd; Qinghe Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-08-03

Abstract

The invention relates to a novel power distribution cabinet which comprises a power distribution cabinet, and a temperature measuring device, a cooling device and a controller which are respectively arranged on two sides of the power distribution cabinet. The temperature measuring device comprises three temperature-sensing detectors which are arranged on the upper part, the middle part and the lower part of one side of the power distribution cabinet from top to bottom; the cooling device comprises a dovetail groove seat, a dovetail groove sliding plate, a power device and a fresh air device. The power device comprises a rack, a gear and a motor; the motor is a stepping motor. The fresh air device comprises a fan, a dust cover and an air pipe; the air inlet of the fan is provided with a filter screen, and the diameter of the meshes of the filter screen is not more than 1mm and cannot be less than 0.5 mm. The controller is respectively in signal connection with the fan, the motor and the three temperature-sensitive detectors. The power distribution cabinet has the advantages that the controller, the temperature sensor and the cooling device are arranged to accurately cool the interior of the power distribution cabinet, and dust is prevented from entering the power distribution cabinet through the dust cover and the filter screen.

Description

Novel power distribution cabinet

Technical Field

The invention relates to the field of power distribution cabinets, in particular to a novel power distribution cabinet.

Background

The switch cabinet is an electric device, the outside line of the switch cabinet firstly enters a main control switch in the cabinet, then enters a branch control switch, each branch circuit is arranged according to the requirement, such as an instrument, an automatic control, a motor magnetic switch, various alternating current contactors and the like, some switch cabinets are also provided with a high-voltage chamber and a low-voltage chamber, high-voltage buses are arranged, such as a power plant and the like, and some switch cabinets are also provided with low-frequency load shedding for keeping the main equipment.

At present, a power distribution cabinet can generate certain heat in the use process, most of common high-voltage switch cabinets are directly radiated by fans and are managed in a rough manner, and the fans are always started regardless of the temperature inside the power distribution cabinet, so that energy is wasted; to this kind of condition, urgently need one kind can be according to the inside temperature of switch board to and the position that generates heat becomes more meticulous and carry out radiating device, avoid the energy extravagant.

Disclosure of Invention

The invention aims to provide a novel power distribution cabinet, and the novel power distribution cabinet has the advantages of good heat dissipation effect, low energy consumption and easiness in maintenance.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a novel power distribution cabinet, includes the switch board, still including setting up the temperature measuring device of switch board one side is in with the setting the cooling device of switch board opposite side.

Furthermore, the temperature measuring device comprises three temperature-sensitive detectors which are arranged on one side of the power distribution cabinet from top to bottom; the three temperature-sensing detectors are respectively arranged at the upper part, the middle part and the lower part of the power distribution cabinet.

Furthermore, the cooling device arranged on the other side of the power distribution cabinet comprises a dovetail groove seat fixedly connected with the power distribution cabinet, a dovetail groove sliding plate in sliding connection with the dovetail groove seat, a power device used for driving the dovetail groove sliding plate and a fresh air device fixedly connected with the dovetail groove sliding plate.

Further, the power device comprises a rack arranged on the dovetail groove seat, a gear meshed with the rack and a motor fixedly connected with the dovetail groove sliding plate; and an output shaft of the motor is fixedly connected with the gear.

Further, the motor is a stepping motor.

Furthermore, an air inlet is formed in one surface, provided with the cooling device, of the power distribution cabinet; the air inlet is in a strip shape.

Furthermore, the fresh air device comprises a fan fixedly connected with the dovetail groove sliding plate and an air pipe with one end fixedly connected with an air outlet of the fan; the other end of the air pipe is connected with the air inlet in a sliding manner. The air inlet of the fan is provided with a filter screen, and the diameter of the meshes of the filter screen is not more than 1mm and cannot be less than 0.5 mm.

Furthermore, the fresh air device further comprises a dust cover for covering the air inlet, and the dust cover is divided into two sections by the air pipe.

Furthermore, the dust cover is a telescopic dust cover, one end of the dust cover is fixedly connected with the power distribution cabinet 1, and the other end of the dust cover is fixedly connected with the outer surface of the air pipe; the dust cover is connected with the two sides of the air inlet of the power distribution cabinet in an abutting mode.

The controller is respectively in signal connection with the fan, the motor and the three temperature-sensitive detectors.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention has simple structure, stable operation and convenient maintenance;

2. a filter screen is arranged at the air inlet of the fan, so that air can be completely introduced, and electric equipment in the power distribution cabinet is prevented from being polluted; the purpose of heat dissipation inside the power distribution cabinet is achieved, the heat dissipation effect is good, and the efficiency is high;

3. through the telescopic dust cover that sets up for the air intake of switch board can not get into the dust, guarantees the inside cleanness of switch board.

4. The cold wind that gets into through the fan that sets up can effectively reduce the temperature of switch board internal plant, avoids equipment because of shutting down and equipment damage that the high temperature caused.

5. According to the invention, the temperature of the internal equipment of the power distribution cabinet can be measured through the temperature sensor, the controller analyzes and judges the temperature measurement signal transmitted by the temperature sensor according to the preset temperature threshold value, and when the sampled temperature value reaches the preset temperature threshold value, the controller controls the fan to start to blow and cool the power distribution cabinet equipment; when the sampling temperature is lower than the preset temperature threshold, the fan is turned off, so that the energy is saved; .

6. Because the upper, middle and lower parts of the power distribution cabinet are respectively provided with the temperature sensors, the upper, middle and lower temperatures in the power distribution cabinet can be respectively detected, and the part with high temperature can be accurately cooled in a refined manner according to the detection result.

7. Through the cooperation of the gear rack that sets up, drive the fan and carry out accurate cooling to the position that the temperature is high.

Drawings

FIG. 1 is a front view of the present invention in a schematic configuration;

FIG. 2 is a schematic left side view of the structure of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

fig. 4 is a schematic plan view of the structure of the cooling device of the present invention.

In the drawings:

1-a power distribution cabinet; 10-air inlet;

2-a temperature measuring device;

3-cooling device, 30-dovetail groove seat, 31-dovetail groove sliding plate, 32-motor, 33-gear, 34-fan, 35-air pipe, 36-dust cover and 310-gear groove hole.

Detailed Description

It should be noted at the outset that the discussion of any embodiment of the present invention is illustrative only and is not intended to suggest that the scope of the present disclosure (including the claims) is limited to these examples; there are many other variations of the different aspects of the invention as described above which are not provided in detail for the sake of brevity. Accordingly, other embodiments are within the scope of the following claims.

In addition, the drawings in the following description are only preferred embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on the drawings without inventive efforts. In addition, the present invention is not limited to these embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Furthermore, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., is typically an orientation or positional relationship based on a coordinate system shown in the front view of the device itself or the corresponding sub-component, and that the set of coordinate systems will not rotate with it when other directional views are discussed. In addition, in the case of a rod-like or elongated member, the term "front end" and the term "head" have the same meaning, and the term "rear end" and the term "tail end" and the term "end" have the same meaning. Rather, the foregoing directional terms are used merely to facilitate describing the present application and to simplify the description, and they do not indicate or imply that the apparatus or component being referred to must have a particular orientation or be constructed and operated in a particular orientation without having been stated to the contrary or otherwise specified, and therefore should not be considered limiting of the scope of the present application; further, the terms "inner and outer" with respect to orientation refer to the inner and outer relative to the profile of the respective component itself.

Furthermore, spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", etc. are used to define the components, and are only used to facilitate distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, especially, have no special meaning in "main, secondary" or arrangement order, and therefore, should not be construed as limiting the scope of the present application.

The opening end of the U-shaped oil tank refers to the end of the U-shaped oil tank, which is contacted with the guide pillar. The closed end of the U-shaped tank is the end opposite the open end.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

Please refer to fig. 1-4;

the embodiment provides a novel power distribution cabinet, which comprises a power distribution cabinet 1 and further comprises a temperature measuring device 2 and a cooling device 3, wherein the temperature measuring device 2 is arranged on one side of the power distribution cabinet 1, and the cooling device 3 is arranged on the other side of the power distribution cabinet 1.

The temperature measuring device 2 comprises three temperature-sensitive detectors which are arranged on one side of the power distribution cabinet 1 from top to bottom; the three temperature-sensing detectors are respectively arranged at the upper part, the middle part and the lower part of the power distribution cabinet.

The cooling device 3 arranged on the other side of the power distribution cabinet 1 comprises a dovetail groove seat 30 fixedly connected with the power distribution cabinet 1, a dovetail groove sliding plate 31 in sliding connection with the dovetail groove seat 30, a power device used for driving the dovetail groove sliding plate 31 and a fresh air device fixedly connected with the dovetail groove sliding plate 31.

The power device comprises a rack arranged on the dovetail groove seat 30, a gear 33 meshed with the rack and a motor 32 fixedly connected with the dovetail groove sliding plate 31; an output shaft of the motor 32 is fixedly connected with the gear 33. The dovetail groove sliding plate 31 is provided with a gear slot 310, and the gear 33 is meshed with the rack through the gear slot 310.

The motor 32 is a stepper motor. The motor 32 is a stepping motor, so that the position of the dovetail sliding plate 31 can be accurately controlled, the positions of the fan 34 and the air duct 35 which are arranged on the dovetail sliding plate 31 are accurately controlled, and high-temperature parts are accurately cooled.

An air inlet 10 is formed in one surface, provided with the cooling device 3, of the power distribution cabinet 1; the air inlet 10 is in a strip shape.

The fresh air device comprises a fan 34 fixedly connected with the dovetail groove sliding plate 31 and an air pipe 35 with one end fixedly connected with an air outlet of the fan 34; the other end of the air pipe 35 is slidably connected with the air inlet 10.

The fan 34 adopts a GDF series rectangular fan in Shangyu fan factories, the model number of the fan is 400 x 200-43, the power of the fan is 0.25 kilowatt, the voltage is 380 volts, and the rotating speed is 1300 revolutions per minute.

The fresh air device further comprises a dust cover 36 for covering the air inlet, and the dust cover 36 is divided into two sections by the air pipe 35.

The dust cover 36 is a telescopic dust cover, the dust cover 36 is in a door shape, one end of the dust cover 36 is fixedly connected with the power distribution cabinet 1, and the other end of the dust cover 36 is fixedly connected with the outer surface of the air pipe 35; two sides of the door type open end of dust cover 36 and the bar of switch board the both sides butt of air intake 10 seals up, prevents that the dust from getting into inside switch board 1.

Further, the temperature-sensing detector also comprises a controller which is respectively in signal connection with the fan 34, the motor 32 and the three temperature-sensing detectors.

The temperature sensor adopts a DS18B20 model, a unique one-line interface of a DS18B20 sensor, only needs one-line communication multi-point capability, simplifies distributed temperature sensing application, does not need external elements, can be powered by a data bus, has a voltage range of 3.0V to 5.5V, does not need a standby power supply, and has a measurement temperature range of-55 ℃ to +125 ℃. Fahrenheit is equivalent to-67F to 257F. The accuracy is + -0.5 ℃ in the range of-10 ℃ to +85 ℃.

The DS18B20 temperature sensor is programmable to a resolution of 9-12 bits, temperature conversion to 12-bit digital format maximum of 750 ms, user definable non-volatile temperature alarm settings, applications ranging from thermostat control, industrial systems, consumer electronics thermometers, or any heat sensitive system.

The digital thermometer describing this DS18B20 provides 9 to 12 bits (programmable device temperature reading). Since DS18B20 is a single port-line communication, the central microprocessor has only one port-line connection with DS18B 20. For reading and writing and temperature conversion, energy can be obtained from the data line, and an external power supply is not needed. Because each DS18B20 contains a unique serial number, multiple DS18B20s may exist on a bus at the same time. This allows the temperature sensors to be placed in many different places. It has many uses, including air conditioning environmental control, sensing of thermal equipment or machinery inside buildings, and process monitoring and control.

DS18B20 employs a one-wire communication interface. Because of the one-wire communication interface, the ROM setting must be done first, otherwise the memory and control functions will not be available. Mainly, one of the following functional commands is provided first: 1) Read ROM, 2) ROM match, 3) search ROM, 4) skip ROM, 5) alarm check. These instructions operate on a 64-bit lithographic ROM serial number for none of the devices, and a device can be selected from a plurality of devices that are hung on a line, and the bus can also know how many and what devices are hung on the bus.

If the instructions successfully cause DS18B20 to complete the temperature measurement, the data is stored in the memory of DS18B 20. One control function directs performance thermometry that instructs DS18B 20. The measurements will be placed in the memory of DS18B20 and the command to issue a memory function can be read, reading the on-chip storage of the content. Both temperature alarm triggers TH and TL have one byte of EEPROM data. These registers may be used for general user memory purposes if DS18B20 does not use alarm checking instructions. Configuration bytes are also carried on the chip to ideally account for temperature digital conversion. The TH, TL instructions and the configuration bytes are written by using a memory function instruction. The register is read through the buffer. All data is read and written starting from the least significant bit.

The controller adopts a Siemens STC12C5A60S2 model, adopts a PDI algorithm, can calculate and compare signals of the temperature sensor, and controls the motor 32 to start and stop.

The invention provides a control method of a novel power distribution cabinet, which is realized according to the following steps:

(1) the temperature sensors are arranged on the side surfaces, one at each of the upper part, the middle part and the lower part, of the power distribution cabinet 1;

(2) setting a preset temperature threshold value through a controller;

(3) and starting the controller and the temperature sensor, wherein the controller receives a temperature measurement signal transmitted by the temperature sensor. And comparing the sampling temperature value in the temperature measurement signal with the preset temperature threshold value, and controlling the start and stop of the motor 32 and the fan 34 according to the comparison result.

(4) The controller gives motor 32 sends a start signal, motor 32 drives gear 33 fixedly connected with the motor to rotate, gear 33 rotates on a meshing rack, under the drive of rack reaction force, the gear is conducted to motor 32 after being stressed, motor 32 transmits the reaction force to dovetail sliding plate 31, dovetail sliding plate 31 slides along a dovetail groove of dovetail groove seat 30, dovetail sliding plate 31 drives fan 34 and air pipe 35 fixed with the dovetail sliding plate to move to a position needing cooling, after reaching a specified position, motor 32 stops, the controller sends a start signal to fan 34, fan 34 passes through air inlet 10 through air pipe 35, and the position needing cooling in power distribution cabinet 1 is cooled.

Example 2

This example is substantially the same as example 1;

the present embodiment is different from embodiment 1 in that:

the driving motor of the fan 34 is a speed regulating motor; when the temperature that 1 upper portion of switch board set up temperature sensor and record surpassed the threshold value certain range of settlement, for example surpass 34 fans open the temperature when more than 15 degrees, the controller gives the buncher sends accelerating signal, 34 fans's air output increase for the inside equipment rapid cooling of switch board 1 avoids equipment to move under high temperature for a long time.

The working principle of this embodiment is the same as that of embodiment 1, and detailed description thereof will be omitted.

Example 3

This example is substantially the same as example 1;

the present embodiment is different from embodiment 1 in that:

the air inlet of the fan 34 is provided with a filter screen, and the diameter of the mesh of the filter screen is 0.8 mm. Multiple tests show that the dust cannot be blocked if the diameter of the mesh is too large, and the wind resistance is too large if the diameter of the mesh is too small, so that the refrigerating effect of the fan 34 is influenced.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

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 illustrative 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 include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be suitably combined to form other embodiments as will be apparent to those skilled in the art.

Claims

1. The utility model provides a novel switch board, includes switch board (1), its characterized in that: the temperature measuring device (2) arranged on one side surface of the power distribution cabinet (1) and the cooling device (3) arranged on the other side surface of the power distribution cabinet (1) are further included.

2. The novel power distribution cabinet according to claim 1, characterized in that: the temperature measuring device (2) comprises three temperature-sensitive detectors which are arranged on one side of the power distribution cabinet (1) from top to bottom; the three temperature-sensing detectors are respectively arranged at the upper part, the middle part and the lower part of the power distribution cabinet.

3. The novel power distribution cabinet according to claim 2, characterized in that: the cooling device (3) is arranged on the other side of the power distribution cabinet (1) and comprises a dovetail groove seat (30) fixedly connected with the power distribution cabinet (1), a dovetail groove sliding plate (31) in sliding connection with the dovetail groove seat (30), a power device used for driving the dovetail groove sliding plate (31) and a fresh air device fixedly connected with the dovetail groove sliding plate (31).

4. The novel power distribution cabinet according to claim 3, characterized in that: the power device comprises a rack arranged on the dovetail groove seat (30), a gear (33) meshed with the rack and a motor (32) fixedly connected with the dovetail groove sliding plate (31); and an output shaft of the motor (32) is fixedly connected with the gear (33).

5. The novel power distribution cabinet according to claim 4, characterized in that: the motor (32) is a stepping motor.

6. The novel power distribution cabinet according to claim 5, characterized in that: an air inlet (10) is formed in one surface, provided with the cooling device, of the power distribution cabinet (14); the air inlet (10) is in a strip shape.

7. The novel power distribution cabinet according to claim 6, characterized in that: the fresh air device comprises a fan (34) fixedly connected with the dovetail groove sliding plate (31) and an air pipe (35) with one end fixedly connected with an air outlet of the fan (34); the other end of the air pipe (35) is connected with the air inlet (10) in a sliding way; the air inlet of the fan (34) is provided with a filter screen, and the diameter of the mesh of the filter screen is not more than 1mm and cannot be less than 0.5 mm.

8. The novel power distribution cabinet according to claim 7, characterized in that: the fresh air device further comprises a dust cover (36) used for covering the air inlet (10), and the dust cover (36) is divided into two sections by the air pipe (35).

9. The novel power distribution cabinet according to claim 8, characterized in that: the dust cover (36) is a telescopic dust cover, one end of the dust cover (36) is fixedly connected with the power distribution cabinet (1), and the other end of the dust cover (36) is fixedly connected with the outer surface of the air pipe (35); the dust cover (36) is abutted to two sides of the air inlet (10) of the power distribution cabinet.

10. The novel power distribution cabinet according to claim 9, characterized in that: the temperature-sensing detector is characterized by further comprising a controller, wherein the controller is in signal connection with the fan (34), the motor (32) and the three temperature-sensing detectors respectively.