CN110854715A - Combined power distribution cabinet - Google Patents
Combined power distribution cabinet Download PDFInfo
- Publication number
- CN110854715A CN110854715A CN201911091852.5A CN201911091852A CN110854715A CN 110854715 A CN110854715 A CN 110854715A CN 201911091852 A CN201911091852 A CN 201911091852A CN 110854715 A CN110854715 A CN 110854715A
- Authority
- CN
- China
- Prior art keywords
- cabinet body
- power distribution
- air supply
- distribution cabinet
- combined power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a combined power distribution cabinet, which comprises a cabinet body, an air supply box and a cooler, wherein the cabinet body is provided with a cabinet body; the cabinet body is internally provided with an installation back plate, the installation back plate is arranged on the rear side wall in the cabinet body in a fitting manner, and the installation back plate is provided with an automatic trip monitoring device, a circuit breaker, a wire concentration area, a temperature sensor and a PLC (programmable logic controller); the circuit breaker is connected with the bus and the automatic tripping monitoring device; the temperature sensor is connected with the PLC; the bottom plate of the cabinet body is provided with a vent hole; the bottom of the cabinet body is provided with an air supply box, a motor is arranged in the air supply box, the motor is in transverse transmission connection with a rotating shaft, and the rotating shaft is axially provided with a plurality of cabinet bottom fan blades; the cooler is arranged at the top of the cabinet body and extends into the cabinet body. The cabinet has no obvious partition plate structure, has strong permeability, can realize omnibearing cooling in the combined power distribution cabinet by combining with a cooling liquid type air supply system, and ensures the normal operation of power equipment in the power distribution cabinet.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a combined power distribution cabinet.
Background
Common switch boards in the market are mostly closed switch cabinets, and electric elements such as switches, protection, monitoring and control in the closed switch cabinets are all installed in a closed shell made of steel or insulating materials. The closed switch cabinet has good sealing performance, small animals are prevented from intruding, the safety of electric shock prevention is high, but the heat dissipation performance is greatly reduced due to the good sealing performance, particularly in hot summer, the outside air temperature is high, heat generated by each element in the closed switch cabinet cannot be dissipated, the element is easily damaged due to high temperature, and the normal use is influenced. In order to solve radiating problem, set up the fan in the partial switch board and cooled down, but because in the switch board for the ease of components and parts installation and cable access, have more to cut off the setting, and the wind direction of fan can't obtain effective circulation in the cabinet, and the air current that leads to the fan to drive is difficult to reach each component. The existing power distribution cabinet can not realize the combination of various power monitoring components and ensure the effective heat dissipation in the cabinet body.
Therefore, how to provide a combined power distribution cabinet with a strong permeability of the structure inside the cabinet and capable of effectively realizing heat dissipation is a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
Aiming at the current research situation and the existing problems, the invention provides the combined power distribution cabinet, the cabinet is not provided with an obvious partition plate structure, the permeability is strong, and the cooling liquid type air supply system is combined to realize the all-round cooling of the combined power distribution cabinet, so that the normal operation of the power equipment in the power distribution cabinet is ensured.
A combined power distribution cabinet comprises a cabinet body, an air supply box and a cooler;
the cabinet body is internally provided with an installation back plate, the installation back plate is arranged on the rear side wall in the cabinet body in an attaching mode, and an automatic tripping monitoring device, a circuit breaker, a wire concentration area, a temperature sensor and a PLC are arranged on the installation back plate; the circuit breaker is connected with a bus and the automatic tripping monitoring device; the temperature sensor is connected with the PLC; a bottom plate of the cabinet body is provided with a vent hole;
the bottom of the cabinet body is provided with the air supply box, the interior of the air supply box is provided with a motor, the motor is in transverse transmission connection with a rotating shaft, and the rotating shaft is axially provided with a plurality of cabinet bottom fan blades; the cooler is arranged at the top of the cabinet body and extends into the cabinet body.
The installation backplate front end provides sufficient installation space, and power device can pass through the bolt and install on the installation backplate, and the grafting of the power cable of being convenient for, and the electric good cable of grafting can be arranged in order through the line concentration district.
The cooling of the combined power distribution cabinet depends on the heat absorption of cooling liquid. The cooling liquid absorbs heat and volatilizes into gas to be stored in the cooling pipe. The cooling pipe is used for introducing cold air through the shaft end fan blade, the cooling pipe is used for cooling, and the cooled cooling liquid flows back to the interior of the power distribution cabinet through the cooling pipe. The repeated circulation makes the internal temperature of the power distribution cabinet stable at the set temperature.
Preferably, the air supply channel is communicated to a cooler position outside the cabinet body.
Preferably, a voltage current transformer and an electric parameter monitoring device are further arranged on the mounting back plate, the voltage current transformer is connected with the bus and the electric parameter monitoring device, and the electric parameter monitoring device is used for monitoring bus voltage and current signals.
Preferably, the cooling cabinet further comprises an air supply channel arranged outside the side plate on one side of the cabinet body, and the air supply channel is communicated with the air supply box and the cooler.
Preferably, the other end of the rotating shaft is provided with a shaft end fan blade, the shaft end fan blade is positioned in the air supply pipeline, and the end part of the shaft end fan blade is connected with the inner wall of the air supply pipeline through a bearing. The cooler can send cold air flow into the cooling pipe without being controlled by an external motor under the driving of the shaft end fan blades, and the cooling efficiency is high.
Preferably, a plurality of cooling pipes are arranged in the cooler, cold air is introduced into gaps of the plurality of cooling pipes through rotating of the fan blade at the shaft end to form air flow, the heat of the gasified cooling liquid is taken away, and the gasified cooling liquid losing the heat is condensed into liquid again; the cooling pipe stretches into the interior of the cabinet body, and the effect of liquefying the cooling liquid is achieved.
Preferably, the cooler adopts a water-cooling mode, cooling liquid is introduced into the cooling pipe, and the cooling liquid is insulating low-temperature volatile liquid.
Preferably, the cooler is provided with an air outlet on a side opposite to the air supply channel, and the air outlet is arranged perpendicular to the air path.
Preferably, the line concentration area comprises a guide rail horizontally arranged on the mounting back plate and a plurality of grid plates vertically arranged relative to the guide rail, and the grid plates are connected with the guide rail in a sliding manner through sliding blocks. The vertical installation structure of the grid plate is more beneficial to the circulation of air flow generated by the fan blades at the bottom of the cabinet in the cabinet body.
Preferably, the grid plate is a hollow grid plate. The hollowed-out grid plate is more favorable for ventilation and heat dissipation.
Preferably, the PLC controller is connected with the motor and the wireless communication module, the wireless communication module is in wireless connection with the far end and used for transmitting temperature signals inside the power distribution cabinet and sending control signals of the motor to the PLC controller through the far end.
Preferably, the automatic tripping monitoring device is connected with the circuit breaker in parallel and comprises a voltage detection unit and a difference value calculation unit, wherein the voltage detection unit respectively acquires voltage signals of the input end and the output end of the circuit breaker and calculates the voltage difference value of the input end and the output end of the circuit breaker through the difference value calculation unit.
Preferably, the difference value calculation unit is connected with a wireless communication module and wirelessly transmits the breaker state signal to a remote end.
Compared with the prior art, the invention has the following beneficial effects:
the invention integrates the bus voltage and current detection and the breaker state monitoring functions, ensures the demand of the combined power distribution cabinet on the multifunctionality, improves the installation mode in the power distribution cabinet, adopts the form of the installation back plate, is more convenient for the installation and the layout of electric power components, and does not block the circulation of bottom updraft in the cabinet body while ensuring the line concentration of cables at the front end of the installation back plate by the line concentration area. The cooler can guarantee to carry out the accuracy cooling to the internal temperature of cabinet, is that the internal temperature of cabinet keeps at rated requirement to the cooler is from the air supply structure of cooling, and not only the energy saving helps increasing the life of cooler moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from the provided drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a combined power distribution cabinet provided by the invention;
fig. 2 is a schematic diagram of a line concentration region structure provided by the present invention.
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.
An embodiment of the present invention will be described in detail below with reference to fig. 1.
A combined power distribution cabinet comprises a cabinet body 1, an air supply box 2 and a cooler 3; an installation back plate 11 is arranged in the cabinet body 1, the installation back plate 11 is arranged on the rear side wall in the cabinet body 1 in an attaching mode, and an automatic tripping monitoring device 43, a circuit breaker 42, a line concentration area 12, a temperature sensor 44 and a PLC are arranged on the installation back plate 11; the circuit breaker 42 connects the bus and the automatic trip monitoring device 43; the temperature sensor 44 is connected with the PLC; a bottom plate 13 of the cabinet body 1 is provided with a vent hole;
the bottom of the cabinet body 1 is provided with an air supply box 2, a motor is arranged in the air supply box 2, the motor is in transverse transmission connection with a rotating shaft 22, and the rotating shaft 22 is provided with a plurality of cabinet bottom fan blades 23 along the axial direction; the cooler 3 is arranged at the top of the cabinet body 1 and extends into the cabinet body 1.
The motor controls the rotation of the rotating shaft 22 and drives the fan blades 23 at the bottom of the cabinet to rotate, ascending air flow is generated and sent into the cabinet body 1, and because no partition plate is arranged in the cabinet body 1 in the embodiment, the ascending air flow reaches the cooler 3 after flowing through the power equipment arranged on the mounting back plate 11, and the cooler 3 cools the high-temperature air flow. In some specific environments, in order to prevent the external environment from affecting the equipment in the power distribution cabinet, such as damage to a cable line caused by insects or mice, sealing treatment should be performed, but the sealing structure is not favorable for heat dissipation of the power distribution cabinet, and normal operation of power equipment is affected. This embodiment need not to set up the ventilation hole at the external exposed part of switch board, has effectively avoided the above-mentioned condition to take place, has still increased the radiating efficiency in the switch board simultaneously.
In a specific embodiment, an air supply channel 5 is further arranged outside a side plate at one side of the cabinet body 1, and the air supply channel 5 is communicated with the air supply box 2 and the cooler 3. The other end of the rotating shaft 22 is provided with a shaft end fan blade 24, the shaft end fan blade 24 is positioned in the air supply pipeline, and the end part of the shaft end fan blade 24 is connected with the inner wall of the air supply pipeline through a bearing 25. The inside a plurality of cooling tubes 31 that are provided with of cooler 3, inside cooling tube 31 stretched into the cabinet body 1, passed through the rotatory clearance of a plurality of cooling tubes 31 of axle head flabellum 24 and let in cold air, formed the air current, took away the heat of gasified coolant liquid, lost the thermal gasification coolant liquid and recondensed into liquid again.
The cooling in the switch board is by the coolant absorption heat. The cooling liquid absorbs heat and then volatilizes into gas. The cooling pipe 31 is introduced with cold air through the shaft end fan 24. The heat of the gasified cooling liquid is taken away, and the gasified cooling liquid losing the heat is condensed into liquid again. The repeated circulation enables the temperature in the power distribution cabinet to be stabilized at the set temperature.
And to the heat absorption of coolant liquid, on the basis that does not increase the power supply, satisfy the motor along with the refrigerated function along with starting, guaranteed to dispel the heat to the switch board while, dispel the heat to cooler 3, avoided unnecessary resource and cost extravagant to the cooling dynamics is along with motor output power changes, need not to adjust according to different power motors, and it is more convenient reasonable to use.
In a specific embodiment, the automatic trip monitoring device 43 is connected in parallel with the circuit breaker 42 and includes a voltage detection unit, a difference calculation unit, and the voltage detection unit obtains voltage signals of the input terminal and the output terminal of the circuit breaker 42 respectively and calculates a voltage difference between the input terminal and the output terminal of the circuit breaker 42 through the difference calculation unit. The difference value calculation unit is connected with a wireless communication module and wirelessly transmits the state signal of the circuit breaker 42 to a far end.
The installation back plate 11 is further provided with a voltage current transformer and an electric parameter monitoring device 41, the voltage current transformer is connected with the bus and the electric parameter monitoring device 41, and the electric parameter monitoring device 41 is used for monitoring bus voltage and current signals.
The PLC controller is connected with the motor and the wireless communication module, the wireless communication module is in wireless connection with the far end and used for transmitting temperature signals inside the power distribution cabinet and sending control signals to the motor to the PLC controller through the far end.
Referring to fig. 2 of the specification, in a specific embodiment, the wire-collecting section 12 includes a rail 14 horizontally disposed on the installation back 11, and a plurality of grid plates 15 vertically disposed with respect to the rail 14, and the grid plates 15 are slidably connected to the rail 14 by a motor 21. The grid 15 may be a hollowed grid 15. The cable is limited between the grid plates 15 in a bunched shape, so that the cable is convenient to comb in the operation and maintenance process.
The above detailed description is made on the combined power distribution cabinet provided by the invention, and a specific example is applied in the description to explain the principle and the implementation manner of the invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Claims (10)
1. The utility model provides a modular switch board which characterized in that: comprises a cabinet body, an air supply box and a cooler;
the cabinet body is internally provided with an installation back plate, the installation back plate is arranged on the rear side wall in the cabinet body in an attaching mode, and an automatic tripping monitoring device, a circuit breaker, a wire concentration area, a temperature sensor and a PLC are arranged on the installation back plate; the circuit breaker is connected with a bus and the automatic tripping monitoring device; the temperature sensor is connected with the PLC; a bottom plate of the cabinet body is provided with a vent hole;
the bottom of the cabinet body is provided with the air supply box, the interior of the air supply box is provided with a motor, the motor is in transverse transmission connection with a rotating shaft, and the rotating shaft is axially provided with a plurality of cabinet bottom fan blades; the cooler is arranged at the top of the cabinet body and extends into the cabinet body.
2. The combined power distribution cabinet according to claim 1, wherein a voltage-current transformer and a power parameter monitoring device are further disposed on the mounting backplane, the voltage-current transformer is connected to the bus and the power parameter monitoring device, and the power parameter monitoring device is configured to monitor bus voltage and current signals.
3. The combined power distribution cabinet according to claim 1, further comprising an air supply channel disposed outside a side plate of one side of the cabinet body, wherein the air supply channel communicates the air supply box and the cooler.
4. The combined power distribution cabinet according to claim 3, wherein a shaft end fan blade is mounted at the other end of the rotating shaft, the shaft end fan blade is located inside the air supply pipeline, and the end part of the shaft end fan blade is connected with the inner wall of the air supply pipeline through a bearing.
5. The combined power distribution cabinet according to claim 4, wherein a plurality of cooling pipes are arranged in the cooler, and cold air is introduced into gaps among the plurality of cooling pipes through rotating of the shaft end fan blades to form air flow so as to take away heat of gasified cooling liquid, and the gasified cooling liquid losing heat is re-condensed into liquid; the cooling pipe extends into the cabinet body.
6. The combined power distribution cabinet according to claim 1, wherein the wire concentration area comprises a guide rail horizontally arranged on the mounting back plate, and a plurality of grid plates vertically arranged relative to the guide rail, and the grid plates are slidably connected with the guide rail through sliding blocks.
7. The combined power distribution cabinet according to claim 5, wherein the grid plate is a hollowed grid plate.
8. The combined power distribution cabinet according to claim 1, wherein the PLC controller is connected to the motor and the wireless communication module, and the wireless communication module is wirelessly connected to a remote end, and is configured to transmit a temperature signal inside the power distribution cabinet and send a control signal for the motor to the PLC controller through the remote end.
9. The combined power distribution cabinet according to claim 1, wherein the automatic trip monitoring device is connected in parallel with the circuit breaker and comprises a voltage detection unit and a difference calculation unit, wherein the voltage detection unit respectively obtains voltage signals of an input end and an output end of the circuit breaker and calculates a voltage difference between the input end and the output end of the circuit breaker through the difference calculation unit.
10. The combined power distribution cabinet according to claim 8, wherein the difference calculation unit is connected with a wireless communication module for wirelessly transmitting the breaker state signal to a remote end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911091852.5A CN110854715B (en) | 2019-11-08 | 2019-11-08 | Combined power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911091852.5A CN110854715B (en) | 2019-11-08 | 2019-11-08 | Combined power distribution cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110854715A true CN110854715A (en) | 2020-02-28 |
| CN110854715B CN110854715B (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911091852.5A Active CN110854715B (en) | 2019-11-08 | 2019-11-08 | Combined power distribution cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117526126A (en) * | 2023-11-08 | 2024-02-06 | 苏州沪港科技股份有限公司 | Switch board accuse temperature structure and switch board thereof |
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| Publication number | Publication date |
|---|---|
| CN110854715B (en) | 2021-09-21 |
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