CN109510317B - Intelligent monitoring method applied to modular ring main unit - Google Patents

Intelligent monitoring method applied to modular ring main unit Download PDF

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Publication number
CN109510317B
CN109510317B CN201910025760.0A CN201910025760A CN109510317B CN 109510317 B CN109510317 B CN 109510317B CN 201910025760 A CN201910025760 A CN 201910025760A CN 109510317 B CN109510317 B CN 109510317B
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ring main
module
main unit
rod
monitoring
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CN109510317A (en
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陈羽
王敬华
张新慧
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Shandong University of Technology
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Shandong University of Technology
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    • H02J13/0013
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/308Mounting of cabinets together

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  • Power Engineering (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The invention discloses an intelligent monitoring method applied to a modular ring main unit, which comprises the steps of monitoring environmental parameters in a single ring main unit through a monitoring module, transmitting the environmental parameters to a control module, presetting a threshold value in the control module, comparing monitoring data transmitted by the monitoring module with the threshold value, and instructing a prompt module to execute a command when the monitoring data is judged to exceed the threshold value range. The invention can selectively ventilate and radiate, and can jack the top cover through the top support unit when radiating is needed to form a stable structure; when not needing the heat dissipation, can put down the top cap through the shore unit, form inclosed, prevent that external dust from getting into, possess the guard action.

Description

Intelligent monitoring method applied to modular ring main unit
Technical Field
The invention relates to the technical field of distribution automation, in particular to an intelligent monitoring method applied to a modular ring main unit.
Background
The distribution network automation is a system which utilizes the technical means of computer technology, automatic control technology, electronic technology, communication technology, new high-performance distribution equipment and the like to carry out offline and online intelligent monitoring management on a distribution network so as to enable the distribution network to be always in a safe, reliable, high-quality, economic and efficient optimal operation state. In a distribution network automation system, various remote detection and control units installed on a medium and low voltage distribution network are distribution automation terminals, including remote terminals such as a DTU, a TTU, an FTU and the like. The DTU is generally installed at a conventional ring main unit, an outdoor small-sized switching station, a box-type substation and the like, and is used for collecting and calculating position signals, voltage, current, active power, reactive power, power factors, electric energy and other data of the switch equipment, performing switching-on and switching-off operation on the switch, and realizing fault identification and isolation of a feeder switch and recovery power supply of a non-fault section.
The conventional ring main unit is of a common box structure, namely an integrated box body. The looped network cabinet needs to be constructed according to a scheme of a user once and is free of fixed cabinet types. The production cycle of the ring main unit with the box-type structure is long, the size is large, the weight is large, the operation process of each process is inconvenient due to the large size, the ring main unit with the box-type structure is poor in flexibility due to the fact that the size is single and the modular design is omitted, the ring main unit cannot be assembled fully according to actual needs, and the whole or local replacement is difficult to carry out.
The ring main unit generally has a plurality of ventilation openings (heat dissipation openings) arranged in an array on the main unit body, and the ventilation openings are only single through holes without special structures. Therefore, on one hand, external dust is easy to enter and accumulate for a long time, and the cleanness of the inside is influenced, even the normal work of the circuit is influenced; on the other hand, due to the upward flow of hot air, the optimal position for heat dissipation should be the top position, but considering the external safety protection, the bottom position of the side or front of the cabinet body that conventional ventilation openings set up will influence the heat dissipation efficiency in the cabinet body like this.
Because the internal environmental parameter of unable control cabinet in the conventional looped netowrk cabinet, like the humiture, lead to the user can't learn the environmental aspect in the looped netowrk cabinet to unable prejudge need take corresponding maintenance measure's opportunity, make the long-term use of looped netowrk cabinet have potential safety hazard and risk.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the conventional ring main units.
Therefore, one of the objectives of the present invention is to provide an intelligent monitoring method applied to a modular ring main unit, which can selectively perform ventilation and heat dissipation.
In order to solve the technical problems, the invention provides the following technical scheme: an intelligent monitoring method applied to a modular ring main unit comprises the steps that environmental parameters inside a ring main unit are monitored through a monitoring module and are transmitted to a control module, a threshold value is preset in the control module, monitoring data transmitted by the monitoring module can be compared with the threshold value, and when the monitoring data are judged to exceed the threshold value range, a prompt module is instructed to execute a command; the ring main unit can be also provided with at least two groups in parallel, each ring main unit obtains monitoring data through a monitoring module and works through a prompt module corresponding to a control module instruction; the monitoring data of each group and the comparison result between the monitoring data and the corresponding threshold are respectively sent to a server through respective transceiver modules and can be accessed by the intelligent terminal; the ring main unit is characterized in that a heat dissipation port is formed in the top plate of the ring main unit, a top cover is covered on the upper portion of the top plate, one side of the top cover is hinged to the edge of the top plate, and the other side of the top cover can be opened or closed through overturning the top cover.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the method comprises the following steps: the control module in each ring main unit is respectively connected with the corresponding monitoring module, the prompting module and the transceiver module, and all the transceiver modules are wirelessly connected with the server and can transmit data; and each control module respectively sends the monitoring data of each group and the comparison result between the monitoring data and the corresponding threshold value to the server through the corresponding transceiver module.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the method comprises the following steps: the ring main unit comprises an outer shell and an inner accommodating space formed by the shell, and a top plate is arranged at the top of the shell; the modular ring main unit is characterized in that at least one ring main unit is arranged, and when more than two ring main units are arranged, the ring main units are connected with each other through connecting units to form a row, so that the modular ring main unit is formed together; each ring main unit is provided with a monitoring unit, and each monitoring unit is arranged in the accommodating space corresponding to the ring main unit and comprises a control module, a monitoring module, a prompt module and a transceiver module.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the method comprises the following steps: the turnover of the top cover is controlled through a top support unit, so that the opening or the closing of the heat dissipation opening is realized; the top bracing unit comprises a rotating part and a mounting fixing plate, and the rotating part comprises a linkage rod and a top bracing rod; the rear part of the shell is a rear side plate, and the rotating piece is fixed at the upper part of the inner side surface of the rear side plate through the mounting and fixing plate; the connecting rod penetrates through the mounting fixing plate and the rear side plate, and a driving part is fixed at the outer end of the connecting rod; the inner end of the tie bar and the lower end of the top stay bar are vertically fixed to each other, and the top stay bar can rotate around the tie bar as an axis by driving the driving part to rotate outside the casing; the top plate is provided with an allowable slot matched with the top stay, the upper end of the top stay penetrates through the allowable slot, is propped against the lower surface of the top cover, and can jack up or put down the top cover along with the rotation of the linkage rod.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the method comprises the following steps: the mounting fixing plate is provided with a first limiting column and a second limiting column, and can block the rotation of the top supporting rod; when the top support rod rotates to the first limiting column, the top support rod cannot rotate continuously due to the obstruction of the first limiting column, and the top cover is jacked up by the top support rod at the moment, so that the heat dissipation opening is opened by the top cover; when the top support rod rotates to the second limiting column, the top support rod cannot rotate continuously due to the obstruction of the second limiting column, and the top cover is put down by the top support rod at the moment, so that the heat dissipation opening is covered by the top cover.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the method comprises the following steps: the top support unit further comprises an adaptive rod, one end of the adaptive rod is hinged with the lower end of the top support rod, and the other end of the adaptive rod is fixedly connected with the non-end part of the top support rod through an extension spring; the mounting fixing plate is also provided with a third limiting column and a fourth limiting column which can form a barrier for the rotation of the adapter rod; when the top support rod rotates to the first limit column, the adapter rod is pulled by the extension spring to rotate to the third limit column, the third limit column blocks the adapter rod from continuing to rotate, and an included angle between the adapter rod and the top support rod is larger than 180 degrees; when the top support rod rotates to the second limit column, the adapter rod is pulled by the extension spring to rotate to the fourth limit column, the fourth limit column blocks the adapter rod from continuing to rotate, and an included angle between the adapter rod and the top support rod is smaller than 180 degrees.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the method comprises the following steps: the connecting unit comprises a pulling module and a matching module, the pulling module is arranged on the top edge and the bottom edge of the front side surface and the rear side surface of each single ring main unit, and the matching module is arranged at the edge position of the other side of each single ring main unit relative to the pulling module and is in one-to-one correspondence with each pulling module; one ring main unit can be connected with each matching module of the other adjacent ring main unit through each pulling module of the ring main unit to form a combination; the traction module comprises a base piece, a driving piece and a driven piece; the pulling module is fixed on the ring main unit through the base piece; one end of the driving piece is hinged with the base piece to form a first hinge point, and the other end of the driving piece is an operating end; one end of the driven part is hinged to the driving part to form a second hinge point, and the other end of the driven part is a connecting end; the link can hook and face the cooperation module on the edge ring main unit monomer, when clockwise promotes when the operation end, can connect two adjacent ring main unit monomers.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the method comprises the following steps: the matching module is of a hook-shaped structure, the driven piece is of a frame structure with a rounded rectangular outline, and the inner end of the driven piece is hinged with the non-end part of the driving piece; the connecting end of the driven piece is coated with a circle of deformation layer, and when the matching module hooks the connecting end, the deformation layer can be extruded with the matching module and deform.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the method comprises the following steps: the pulling module further comprises an elastic adapter; the driving part is provided with a first fixing buckle, the driven part is provided with a second fixing buckle, and the distance between the first fixing buckle and the first hinge point is greater than the distance between the second hinge point and the first hinge point; one end of the elastic adapter is fixed on the first fixing buckle, and the other end of the elastic adapter is fixed on the second fixing buckle.
As a preferred scheme of the intelligent monitoring method applied to the modular ring main unit, the invention comprises the following steps: when the operating end is pushed clockwise until the deformation layer begins to deform, the horizontal included angle between the driving part and the driven part is smaller than 180 degrees; when the operating end is pushed into contact with the surface of the shell, the horizontal included angle between the driving piece and the driven piece is larger than 180 degrees.
The invention has the beneficial effects that: according to the invention, the ring main units are subjected to modular design and combined installation type design, so that a plurality of ring main unit monomers can be combined and used at will, and a constructor can flexibly select one or more ring main unit monomers to be matched and combined for use according to the actual conditions on site, therefore, the flexibility and flexibility are high, and the replacement is convenient. Because the modular ring main unit is small in size, light in weight and small in occupied area, the modular ring main unit is beneficial to batch production and batch transportation of factories, and the production period is shortened. Meanwhile, the invention can monitor the environmental parameters in the cabinet body in real time through the monitoring unit, so that a user can know the environmental conditions in the cabinet body in real time, and can take maintenance measures when necessary to reduce risks. When the monitored temperature reaches the early warning, the top cover can be jacked up through the jacking unit to form a stable structure; when the heat dissipation is not needed, the top cover can be put down through the top support unit to form a seal, so that external dust is prevented from entering the heat dissipation device, and the heat dissipation device has a protection effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a structural framework diagram of a plurality of monitoring units according to the present invention.
Fig. 2 is a flowchart of an environmental parameter monitoring method according to the present invention.
Fig. 3 is a position distribution diagram of the connection units in the ring main unit according to the present invention.
Fig. 4 is a structural diagram of a single ring main unit and a detailed partial structural diagram thereof according to the present invention.
Fig. 5 is an overall structural diagram of the ring main unit after the ring main unit units are combined and connected according to the present invention and a partial structural detail diagram thereof.
Fig. 6 is an overall structure diagram of the drawing module according to the present invention.
Fig. 7 is a schematic diagram of the locking of the connection unit according to the present invention.
Fig. 8 is a side view of a pulling module according to the present invention, a cross-sectional view thereof, and a detailed view of the internal structure of the handling end.
FIG. 9 is a partial front elevation view and partial detail thereof of the jacking unit jacking up and lowering the head cover in accordance with the present invention.
Fig. 10 is a view of the installation position of the top bracing unit according to the present invention and its partial detail.
Fig. 11 is a structural view of the jacking unit according to the present invention when jacked up.
Fig. 12 is a structural view of the top bracing unit according to the present invention when it is lowered.
Fig. 13 is a structural view of a rotating member according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Referring to fig. 1 and 2, an embodiment of the present invention provides an environmental parameter monitoring method, which is based on a monitoring unit 100. The monitoring unit 100 is installed inside the ring main unit, and can be used for monitoring environmental parameters such as temperature and humidity in the ring main unit in real time, so as to ensure safety.
Specifically, the monitoring unit 100 may be fixed to an inner sidewall of the housing 200. The monitoring unit 100 includes a control module 101, a monitoring module 102, and a prompt module 103, where the control module 101 is connected to the monitoring module 102 and the prompt module 103, respectively. The monitoring module 102 is configured to monitor environmental parameters in the housing 200 in real time to obtain monitoring data, such as an air temperature value, a humidity value, and the like, and transmit the monitoring data to the control module 101 in real time. The control module 101 in the invention can be a main controller capable of performing logic judgment and comprehensive control, and is used for communicating with other modules, such as an MCU; the monitoring module 102 may be a device capable of measuring environmental parameters, such as a temperature and humidity sensor.
In the present invention, a threshold is preset in the control module 101, where the threshold may be multiple thresholds for multiple environmental parameters, and if the monitoring temperature and humidity is taken as an example (the monitoring module 102 employs a temperature and humidity sensor), the threshold includes a temperature threshold and a humidity threshold. The control module 101 is also provided with a program for comparing the monitoring data with a threshold value in real time, which specifically comprises the following steps:
the control module 101 compares the monitoring data transmitted from the monitoring module 102 with a threshold value, and instructs the prompt module 103 to execute a command including a phenomenon that sounds and lights can attract attention when the monitoring data is judged to exceed the threshold value range. The setting/presenting module 103 of the present invention includes a first presenting part 103a and a second presenting partIIA prompt part 103a, both of which adopt LED lampsHowever, the light emission color is different, for example, the first indication portion 103a is set to generate red lightIIThe prompting part 103a can generate green light, and the two are respectively used for early warning of different environmental parameters. When the control module 101 receives the temperature data from the monitoring module 102, the temperature data is compared with a temperature threshold value, and if the temperature data does not exceed the threshold value range, the first prompting part 103a is not instructed to emit light; if the threshold value is exceeded, the first presenting part 103a is instructed to emit light. Similarly, when the control module 101 receives the humidity data from the monitoring module 102, it compares the humidity data with the humidity threshold, and if the humidity data does not exceed the threshold, the control module does not command the second stepIIThe presentation section 103a emits light; if the threshold is exceeded, command the firstIIThe presentation section 103a emits light.
Further, the monitoring unit 100 further includes a transceiver module 104 connected to the control module 101, the control module 101 can send the monitoring data and the comparison result between the monitoring data and the threshold to the server 105 for storage through the transceiver module 104, and the intelligent terminal 106 is connected to the server 105 and can access the monitoring data stored in the server 105 and the comparison result between the monitoring data and the threshold, so that the user can remotely know various environmental parameters in the cabinet body from the intelligent terminal 106 in real time, so as to take maintenance measures when necessary.
The transceiver module 104 of the present invention may be a GPRS communication module, which is externally connected with an antenna for wireless connection and data transmission with the remote server 105. The smart terminal 106 is a device such as a smart phone or a tablet computer that is installed with a specific APP and can access data in the server 105 through the specific APP.
Of course, the monitoring unit 100 further includes a power module, which is connected to the control module 101, the monitoring module 102, the prompting module 103, and the transceiver module 104, and is used for supplying power to each functional module. Preferably, the control module 101, the monitoring module 102, the prompting module 103, the transceiver module 104, and the power module may be integrated on a circuit board, and the integrated circuit board may be installed in a protective housing and fixed on the inner sidewall of the housing 200 through the protective housing.
In addition, the invention also provides an intelligent monitoring method applied to the modular ring main unit, which is based on the environmental parameter monitoring method and is applied to the modular ring main unit.
Modularization looped netowrk cabinet can be formed by linking up side by side a plurality of looped netowrk cabinet monomers that can independent utility, and every looped netowrk cabinet monomer is an solitary small-size looped netowrk cabinet, and a plurality of looped netowrk cabinet monomers can carry out horizontal equipment in proper order and arrange, form a great "modularization looped netowrk cabinet" whole. Thus, it has: can be combined at will, is convenient to replace, has short production period, high flexibility and maneuverability and the like.
Each single ring main unit of the modular ring main unit is internally provided with a corresponding monitoring unit 100, and each monitoring unit 100 is respectively arranged on the inner side wall of the shell 200 corresponding to the single ring main unit. The ring main unit includes an external housing 200 and an internal accommodating space M formed by the housing 200, and the monitoring unit 100 is located in the accommodating space M. Each ring main unit is measured by the respective monitoring module 102 to obtain respective monitoring data, and the respective control module 101 instructs the corresponding prompt module 103 to work. The same as the single ring main unit is that: the monitoring data of the plurality of ring main units and the comparison results between the monitoring data and the corresponding threshold values are respectively and collectively sent to the server 105 through the respective transceiver module 104, and can be accessed by the intelligent terminal 106.
Further, the housing 200 includes a first side plate 201 and a second side plate 202, which are parallel to each other. The housing 200 also includes a rear side panel 203, a top panel 204, and a bottom panel 205. The first side plate 201 and the second side plate 202 are connected with the rear side surface of the cabinet body through a rear side plate 203, connected with the top surface of the cabinet body through a top plate 204, and connected with the bottom surface of the cabinet body through a bottom plate 205.
From the above, it can be seen that: the ring main unit is provided with at least one ring main unit, and when only one ring main unit is arranged, the ring main unit is used as a single ring main unit; as shown in fig. 3 to 5, when the number of the ring main units is more than two, the ring main units are connected to each other through the connection unit 400 to form a row, so as to jointly form the modular ring main unit.
The connection unit 400 has a function of connecting the ring main unit units adjacent to each other in each group in the present invention. Each group of two adjacent ring main units are combined under the connection of the plurality of connection units 400. The connecting unit 400 comprises a drawing module 401 and a matching module 402, wherein the drawing module 401 is a linkage structure used for connecting the single body of the edge-facing looped network cabinet, and the matching module 402 is a hook body used for matching with the drawing module 401 of the single body of the edge-facing looped network cabinet. Because a plurality of ring main unit monomer structures are the same, and can make up the connection in proper order after arranging wantonly, consequently for guaranteeing orderliness, every ring main unit monomer all includes a plurality of linkage units 400, and tractive module 401 is the same with cooperation module 402 quantity wherein, the one-to-one.
Specifically, the pulling modules 401 are disposed at the top edge and the bottom edge of the front side and the back side of each ring main unit, and are uniformly fixed at one side edge of the front side (or the back side), and the matching module 402 is disposed at the other side edge of the ring main unit relative to the pulling modules 401, and forms a one-to-one correspondence with each pulling module 401. That is, each single ring main unit has multiple sets of pulling modules 401 and matching modules 402, the pulling module 401 of its own is used to connect with the matching module 402 of the single ring main unit adjacent to one side, and the matching module 402 of its own is used to connect with the pulling module 401 of the single ring main unit adjacent to the other side.
As shown in fig. 6-8, the pulling module 401 includes a base member 401a, a driving member 401b and a driven member 401 c. The base member 401a may be a fixed hinge support, and the whole pulling module 401 is fixed at the top edge and the bottom edge of the ring main unit (the front and the rear side surfaces are all provided) through the base member 401 a. The driving member 401b is rod-shaped, one end of which is hinged to the base member 401a to form a first hinge point J-1, and the other end is an operating end 401b-1, and the operating end 401b-1 is used as an external driving action point. One end of the driven part 401c is hinged to the driving part 401b (two end positions of the non-driving part 401 b) to form a second hinge point J-2, and the other end is a connecting end 401c-1 for connecting with the matching module 402 of the adjacent edge ring main unit, which can hook the matching module 402 on the adjacent edge ring main unit, and when the operating end 401b-1 is pushed clockwise, two adjacent ring main units can be connected, and the 'clockwise' described in the invention takes the top view of the whole modular ring main unit as a reference.
In the present invention, the mating module 402 is a hook-like structure and the follower 401c may be a frame structure having a rounded rectangular profile in a vertical plane. The inner end of the driven member 401c is hinged to the non-end position of the driving member 401b (e.g., the middle position or the right and left positions of the driving member 401 b), and the outer end is hooked on the adjacent mating module 402 through its frame.
Preferably, the connecting end 401c-1 of the driven member 401c is covered with a ring of deformation layer 401c-2, and the deformation layer 401c-2 is made of a flexible material capable of deforming under pressure, such as a rubber layer. When the mating module 402 hooks the connection end 401c-1 and simultaneously pushes the operation end 401b-1 of the driving member 401b clockwise, the deformation layer 401c-2 can be pressed with the mating module 402 and deformed.
Further, the pulling module 401 further comprises elastic adapters 401 d. In addition, the driving member 401b has a first fixing buckle 401b-2, and the driven member 401c has a second fixing buckle 401 c-3. The driving member 401b is divided into a first section D-1 and a second section D-2 by a second hinge point J-2, wherein the section between the first hinge point J-1 and the second hinge point J-2 is the first section D-1, and the section between the second hinge point J-2 and the end of the operating end 401b-1 is the second section D-2. In the present invention, the first holder buckle 401b-2 is disposed on the second section D-2 such that the distance between the first holder buckle 401b-2 and the first hinge point J-1 is greater than the distance between the second hinge point J-2 and the first hinge point J-1. The second holder buckle 401c-3 is fixed in a non-end position on the follower 401 c. The elastic adaptor 401D is fixed to the first fixing buckle 401b-2 at one end and the second fixing buckle 401c-3 at the other end, and the elastic adaptor 401D in the present invention can be an extension spring, in order to ensure that the elastic adaptor 401D can perform corresponding displacement in a self-adaptive and unimpeded manner during the process of driving the pulling module 401 to move integrally by the driving member 401b, the first section D-1 and a part of the second section D-2 of the driving member 401b are hollow in the middle to allow the elastic adaptor 401D to perform corresponding movement in a "hollow structure". The first fixing buckle 401b-2 is a short column structure fixed between two hollow interlayers of the driving part 401 b; the second fixing buckle 401c-3 is a short column structure fixed between the upper and lower parallel frames of the driven member 401 c.
The locking process of the connection unit 400 is as follows:
the connecting end 401c-1 of the driven piece 401c is hooked on the matching module 402 of the adjacent side looped network cabinet monomer (only contact and no extrusion effect is realized at the moment), and then the operating end 401b-1 is pushed clockwise until the deformation layer 401c-2 begins to be pressed and deformed, and the horizontal included angle between the driving piece 401b and the driven piece 401c is smaller than 180 degrees. If the operating end 401b-1 is pushed clockwise, the required pushing force is gradually increased, the pulling tension applied to the driven member 401c is correspondingly increased, and the deformation space of the deformation layer 401c-2 and the driven member 401c enables the operating end 401b-1 to be pushed continuously. In this process, the elastic adapter 401d is also gradually elongated.
When the operating end 401b-1 is further pushed clockwise until the first hinge point J-1, the second hinge point J-2 and the deformation layer 401c-2 are collinear, the pulling force applied to the follower 401c reaches a maximum (the deformation degree of the deformation layer 401c-2 also reaches a maximum), and at this time, the elastic adapter 401d is also pulled to the maximum. If the operating end 401b-1 is pushed clockwise continuously, in the subsequent process, the driven member 401c gradually returns to the normal state, the pulling force is released, the deformation degree of the deformation layer 401c-2 is reduced accordingly, the required driving force is reduced rapidly, and even the operating end 401b-1 automatically rotates clockwise under the condition that the driven member 401c and the deformation layer 401c-2 return to the normal state until the operating end 401b-1 touches the surface of the shell 200, so that the operating end 401b-1 cannot rotate continuously. At this time, the coupling unit 400 is integrally formed in a locked state, and the driving member 401b cannot be rotated counterclockwise by itself (because it will be subjected to a greater tension) unless it is driven counterclockwise by the outside. In the locked state, the horizontal angle between the driving member 401b and the driven member 401c is greater than 180 °. Preferably, the elastic adapter 401d can pull the driving member 401b and the driven member 401c, and has a security function of preventing the loosening rotation.
Further, the connection unit 400 further includes a safety module 403, and the safety module 403 has a hook shape and an outer surface having a convex curved surface.
The handle end 401b-1 may be cylindrical with a hollow first chamber 401b-11 and a second chamber 401b-12 therein. The first chamber 401b-11 is located at the outer end of the second chamber 401b-12 and has a larger inner diameter than the second chamber 401b-12, forming a step at the interface between the two.
The first chamber 401b-11 is inserted with a telescopic member 401b-13, the telescopic member 401b-13 is a cylindrical structure, an inner end of the telescopic member is inserted into the inner second chamber 401b-12, an outer end of the telescopic member passes through the first chamber 401b-11, and an operation end 401b-1 is exposed (the outer end of the first chamber 401b-11 is provided with a corresponding socket communicated with the outside). In addition, the telescopic part 401b-13 is provided with a limiting ring 401b-14 positioned in the range of the first cavity 401b-11, and the limiting ring 401b-14 is in a ring shape, is larger than the maximum size of a socket of the outer end head of the first cavity 401b-11 and is slightly smaller than the inner diameter of the first cavity 401b-11, so that the telescopic part 401b-13 cannot be separated from the first cavity 401 b-11. The first chamber 401b-11 also has a spring 401b-15 therein, the spring 401b-15 being a compression spring that fits over the telescoping member 401b-13, with one end resting against the stop collar 401b-14 and the other end resting against the inner end face of the first chamber 401b-11 (i.e., the step face formed by the first chamber 401b-11 and the second chamber 401 b-12).
Thus, when the operating end 401b-1 is pushed clockwise, the exposed portion of the outer end of the telescoping member 401b-13 can reach the safety module 403. Because the outer surface of the safety module 403 is convexly curved, it can slide along the convexly curved surface while the telescoping members 401b-13 retract into the first and second chambers 401b-11 and 401 b-12.
Preferably, the outer end of the telescopic member 401b-13 is also configured as a convex curved surface, and when the operation end 401b-1 is pushed clockwise, the convex curved surface of the telescopic member 401b-13 can contact with the convex curved surface of the safety module 403 to form extrusion, which is more favorable for sliding between the two. After the outer ends of the telescopic members 401b-13 slide into the hook body along the convex curved surface of the safety module 403, the telescopic members 401b-13 are exposed again after rebounding, and the safety module 403 can block the telescopic members, so that the possibility of loosening and rebounding is further prevented.
Further, the operating end 401b-1 is bent with respect to the first section D-1 in a counterclockwise direction, so that the operating end 401b-1 has a larger clockwise rotation space, and a larger obtuse angle is obtained between the first section D-1 and the driven member 401c, thereby reducing the structural instability of the driven member 401c due to the possibility of tension.
The present invention also provides an embodiment as shown in fig. 9 to 13, but different from the above: the top of the housing 200 is a top plate 204, the top plate 204 has a heat dissipation opening 204a, the top of the top plate 204 is further covered with a top cover 206, one side of the top cover 206 is hinged with the edge of the top plate 204, and the other side of the top cover 206 can be opened or closed by turning over the heat dissipation opening 204 a.
The heat dissipation opening 204a is a through hole on the top plate 204, and a plurality of heat dissipation openings may be arranged in an array for heat dissipation and ventilation. The top cover 206 can selectively ensure ventilation in the housing 200, and can be closed to prevent dust or foreign objects from entering when ventilation and heat dissipation are not needed. One side of the top cover 206 may be hinge-coupled to an edge of the top plate 204, and in the present invention, a plurality of hinges may be provided.
In the present invention, the turning of the top cover 206 is controlled by the top supporting unit 300, thereby achieving the selective opening of the heat dissipation opening 204 a.
The top bracing unit 300 includes a rotary member 301 and a mounting fixing plate 302, and the rotary member 301 is fixed to an upper position of an inner side surface of the rear side plate 203 by the mounting fixing plate 302.
The rotating member 301 includes a tie bar 301a and a top stay 301 b. The link rod 301a has a function of a horizontal rotating shaft, an outer end thereof sequentially penetrates through the mounting fixing plate 302 and the rear side plate 203 to extend to the outside of the housing 200, and a driving part 301c is fixed to the outer end thereof, where the driving part 301c may be a rotating handle at an outer end of the link rod 301a, and the link rod 301a itself may be a round rod.
Furthermore, the linking rod 301a is provided with a ring body 301a-1, and the ring body 301a-1 is located at the outer side position of the mounting fixing plate 302, and can jointly clamp the mounting fixing plate 302 with the inner side surface of the top stay 301b, so as to prevent the linking rod 301a from axially sliding in and out in a telescopic manner on the mounting fixing plate 302.
The inner end of the tie bar 301a and the lower end of the top stay 301b are fixed perpendicular to each other, that is: the tie bar 301a and the top stay 301b are perpendicular to each other, and form an integrated structure. Therefore, the top stay 301b can be rotated about the link lever 301a by rotating the driving portion 301c outside the housing 200.
The top stay 301b may be a straight rod, the lower end of which is fixed to the connection rod 301a, and the upper end of which is used for jacking up the top cover 206 to open and open the heat dissipation opening 204 a. Meanwhile, the top plate 204 is provided with an allowable slit 204b matched with the top support rod 301b, the allowable slit 204b is a strip-shaped through slit, the upper end of the top support rod 301b can pass through the allowable slit 204b without obstruction, and can be pressed against the lower surface of the top cover 206, and the top cover 206 can be pressed up or down along with the rotation of the tie rod 301 a.
In the present invention, the mounting fixing plate 302 may have a plate shape, and is fixed to the inner side surface of the rear side plate 203 by means of strips at both sides.
The mounting fixing plate 302 is provided with a first limiting column 302a and a second limiting column 302b, both of which are short column structures vertically fixed on the mounting fixing plate 302 and can block the rotation stroke of the top stay bar 301b, so that the top stay bar 301b can only rotate within the range between the two. Specifically, the method comprises the following steps:
when the top stay 301b rotates to the first limiting column 302a, the top stay 301b cannot rotate continuously due to the obstruction of the first limiting column 302a, and the top cover 206 can be jacked up by the upper end of the top stay 301b at the moment, so that the top cover 206 opens the heat dissipation port 204 a; when the top stay 301b rotates to the second limiting column 302b, the top stay 301b can just put down the top cover 206 due to the obstruction of the second limiting column 302b, so that the top cover 206 covers the heat dissipation opening 204 a.
Preferably, the top bracing unit 300 further comprises an adapter rod 303, one end of the adapter rod 303 is hinged with the lower end of the top bracing rod 301b, and the other end is fixedly connected with the non-end position of the top bracing rod 301b through an extension spring 304. Through the adaptive action of the adapter rod 303 and the extension spring 304, the top stay 301b can be kept in a stable state no matter when the top cover 206 is lifted up or when the top cover 206 is put down, and the structure of the top cover 206 after being supported up is prevented from lacking in stability due to external interference.
Specifically, the adapter rod 303 is a straight rod which can rotate around a hinge point with the top brace 301b, and the rotation thereof also has a range limitation, which is as follows:
the mounting plate 302 further has a third limiting column 302c and a fourth limiting column 302d, which may be short columns or blocks (blocks in the drawings) and can block the rotation of the adapter rod 303.
If it is assumed that initially, the adapter rod 303 abuts against the fourth limiting column 302d and the top brace 301b abuts against the second limiting column 302b, and the included angle between the adapter rod 303 and the top brace 301b at this time is set to be less than 180 °, the adapter rod 303 and the top brace 301b can form a stable structure due to the stretching action of the stretching spring 304 and cannot be changed. At this time, the top end of the top stay 301b does not have a supporting function on the lower surface of the top cover 206.
When the top support rod 301b is rotated counterclockwise to the first position-limiting column 302a, the included angle between the adapter rod 303 and the top support rod 301b gradually increases, and when the included angle reaches 180 °, an unstable structure is formed, and the adapter rod 303 tends to rotate toward the third position-limiting column 302 c. If the top stay bar 301b continues to rotate counterclockwise, the adapter rod 303 will be pulled by the tension spring 304 to rotate to the third position-limiting column 302c, the third position-limiting column 302c prevents the adapter rod 303 from rotating continuously, and when the top stay bar 301b finally rotates to the first position-limiting column 302a, the included angle between the adapter rod 303 and the top stay bar 301b is set to be larger than 180 °, a stable structure is still formed, and the stability of the "lifted" top cover 206 is ensured.
Preferably, a side surface of the top stay 301b corresponding to the first position-limiting column 302a is recessed with a matching groove 301b-1, the matching groove 301b-1 matches with the size of the first position-limiting column 302a, and when the top stay 301b rotates to the first position-limiting column 302a, the matching groove 301b-1 can be exactly clamped on the first position-limiting column 302a, so as to enhance the binding force between the two and the stability of the whole structure.
If the heat dissipation opening 204a needs to be covered, the top support rod 301b only needs to be rotated clockwise, the included angle between the adapter rod 303 and the top support rod 301b is gradually reduced, when the included angle reaches 180 degrees, an unstable structure is formed, and the adapter rod 303 tends to rotate towards the fourth limit column 302 d. If the top supporting rod 301b continues to rotate clockwise, the adapter rod 303 will be pulled by the tension spring 304 to rotate to the fourth position-limiting column 302d, the fourth position-limiting column 302d will block the adapter rod 303 from rotating continuously, and when the top supporting rod 301b finally rotates to the second position-limiting column 302b, and at this time, the included angle between the adapter rod 303 and the top supporting rod 301b returns to the initial state, i.e. less than 180 °, and the heat dissipation opening 204a is sealed and the stable structure is maintained.
When the user observes the luminescence of prompt module 103, or when discovering that the internal temperature of cabinet reaches early warning level through intelligent terminal 106, can prop up unit 300 through the top and prop up top cap 206, dredge thermovent 204a and carry out ventilation cooling to reach the cooling purpose.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (5)

1. An intelligent monitoring method applied to a modular ring main unit is characterized in that: comprises the steps of (a) preparing a substrate,
each single ring main unit corresponds to one monitoring unit (100), and each monitoring unit (100) is respectively arranged in the accommodating space (M) of the corresponding single ring main unit and comprises a control module (101), a monitoring module (102), a prompt module (103) and a transceiver module (104); the control module (101) in each ring main unit is respectively connected with the corresponding monitoring module (102), the prompting module (103) and the transceiver module (104), and all the transceiver modules (104) are wirelessly connected with the server (105) and can transmit data; each control module (101) respectively sends the monitoring data of each group and the comparison result between the monitoring data and the corresponding threshold value to a server (105) through a corresponding transceiver module (104); monitoring environmental parameters inside a ring main unit through a monitoring module (102), transmitting the environmental parameters to a control module (101), presetting a threshold value in the control module (101), comparing monitoring data transmitted by the monitoring module (102) with the threshold value, and instructing a prompt module (103) to execute a command when the monitoring data is judged to exceed the threshold value range;
at least two groups of ring main unit units can be arranged in parallel, each ring main unit obtains monitoring data through a monitoring module (102) and works through a prompt module (103) corresponding to the instruction of a control module (101);
the monitoring data of each group and the comparison result between the monitoring data and the corresponding threshold are respectively sent to a server (105) through respective transceiver modules (104) and can be accessed by an intelligent terminal (106);
a heat dissipation opening (204 a) is formed in a top plate (204) of the single ring main unit, a top cover (206) is covered on the upper portion of the top plate (204), one side of the top cover (206) is hinged to the edge of the top plate (204), and the other side of the top cover can be opened or closed through overturning;
the ring main unit comprises an outer shell (200) and an inner accommodating space (M) formed by the shell (200), and the top of the shell (200) is a top plate (204);
the ring main unit is provided with at least one ring main unit, and when the number of the ring main units is more than two, the ring main units are connected with each other through a connecting unit (400) to form a row, and the modular ring main units are formed together;
the turnover of the top cover (206) is controlled through a top support unit (300), so that the opening or closing of the heat dissipation opening (204 a) is realized;
the top bracing unit (300) comprises a rotating piece (301) and a mounting fixing plate (302), wherein the rotating piece (301) comprises a linkage rod (301 a) and a top bracing rod (301 b);
the rear part of the shell (200) is a rear side plate (203), and the rotating piece (301) is fixed on the inner side surface of the rear side plate (203) through the installation fixing plate (302); the tie bar (301 a) passes through the mounting fixing plate (302) and the rear side plate (203), and a driving part (301 c) is fixed at the outer end of the tie bar; an inner end of the tie bar (301 a) and a lower end of the top stay (301 b) are fixed perpendicular to each other, and the top stay (301 b) is rotatable about the tie bar (301 a) by rotationally driving the driving unit (301 c) outside the housing (200);
the top plate (204) is provided with an allowable slit (204 b) matched with the top stay (301 b), the upper end of the top stay (301 b) penetrates through the allowable slit (204 b), is pressed against the lower surface of the top cover (206), and can lift up or lower down the top cover (206) along with the rotation of the tie rod (301 a);
the mounting fixing plate (302) is provided with a first limiting column (302 a) and a second limiting column (302 b), and can form a block for the rotation of the top support rod (301 b);
when the top stay bar (301 b) rotates to the first limit column (302 a), the top stay bar (301 b) can not rotate continuously due to the obstruction of the first limit column (302 a), and the top cover (206) is jacked up by the top stay bar (301 b) at the moment, so that the top cover (206) opens the heat dissipation opening (204 a);
when the top support rod (301 b) rotates to the second limit column (302 b), the top support rod (301 b) can not rotate continuously due to the obstruction of the second limit column (302 b), and the top cover (206) is put down by the top support rod (301 b) at the moment, so that the top cover (206) covers the heat dissipation opening (204 a);
the connecting unit (400) comprises pulling modules (401) and matching modules (402), wherein the pulling modules (401) are arranged at the top edges and the bottom edges of the front side and the rear side of each ring main unit, and the matching modules (402) are arranged at the edge positions of the other sides of the ring main units relative to the pulling modules (401) and form one-to-one correspondence with each pulling module (401); one ring main unit can be connected with each matching module (402) of the other adjacent ring main unit through each pulling module (401) of the ring main unit to form a combination;
the pulling module (401) comprises a base member (401 a), a driving member (401 b) and a driven member (401 c); the pulling module (401) is fixed on the ring main unit through the base piece (401 a); one end of the driving part (401 b) is hinged with the base part (401 a) to form a first hinge point (J-1), and the other end is an operating end (401 b-1); one end of the driven part (401 c) is hinged to the driving part (401 b) to form a second hinge point (J-2), and the other end of the driven part is a connecting end (401 c-1);
the connecting end (401 c-1) can hook a matching module (402) on the adjacent ring main unit, and when the operating end (401 b-1) is pushed clockwise, two adjacent ring main units can be connected.
2. The intelligent monitoring method of the modular ring main unit according to claim 1, wherein: the top bracing unit (300) further comprises an adapter rod (303), one end of the adapter rod (303) is hinged with the lower end of the top bracing rod (301 b), and the other end of the adapter rod (303) is fixedly connected with the non-end position of the top bracing rod (301 b) through an extension spring (304);
the mounting fixing plate (302) is also provided with a third limiting column (302 c) and a fourth limiting column (302 d) which can form a barrier for the rotation of the adapter rod (303);
when the top brace rod (301 b) rotates to the first limit post (302 a), the adapter rod (303) is pulled by the extension spring (304) to rotate to the third limit post (302 c), the third limit post (302 c) blocks the adapter rod (303) from rotating continuously, and the included angle between the adapter rod (303) and the top brace rod (301 b) is larger than 180 degrees;
when the top brace rod (301 b) rotates to the second limiting column (302 b), the adapter rod (303) is pulled by the extension spring (304) to rotate to the fourth limiting column (302 d), the fourth limiting column (302 d) blocks the adapter rod (303) from rotating continuously, and the included angle between the adapter rod (303) and the top brace rod (301 b) is less than 180 °.
3. The intelligent monitoring method of the modular ring main unit according to claim 2, wherein: the matching module (402) is of a hook-shaped structure, the driven piece (401 c) is of a frame structure with a rounded rectangular outline, and the inner end of the driven piece is hinged with the non-end part of the driving piece (401 b);
the connecting end (401 c-1) of the driven piece (401 c) is wrapped with a circle of deformation layer (401 c-2), and when the matching module (402) hooks the connecting end (401 c-1), the deformation layer (401 c-2) can be pressed with the matching module (402) and generate deformation.
4. The intelligent monitoring method of the modular ring main unit as claimed in claim 3, wherein: the pulling module (401) further comprises an elastic adapter (401 d);
the driving part (401 b) is provided with a first fixing buckle (401 b-2), the driven part (401 c) is provided with a second fixing buckle (401 c-3), and the distance between the first fixing buckle (401 b-2) and the first hinge point (J-1) is larger than the distance between the second hinge point (J-2) and the first hinge point (J-1);
one end of the elastic adapter (401 d) is fixed to the first fixing buckle (401 b-2), and the other end is fixed to the second fixing buckle (401 c-3).
5. The intelligent monitoring method of the modular ring main unit according to claim 4, wherein: when the operating end (401 b-1) is pushed clockwise until the deformation layer (401 c-2) begins to deform, the horizontal included angle between the driving part (401 b) and the driven part (401 c) is smaller than 180 degrees;
when the operating end (401 b-1) is pushed to be in surface contact with the shell (200), the horizontal included angle between the driving piece (401 b) and the driven piece (401 c) is larger than 180 degrees.
CN201910025760.0A 2019-01-11 2019-01-11 Intelligent monitoring method applied to modular ring main unit Active CN109510317B (en)

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CN116846080B (en) * 2023-07-13 2024-03-26 国网山东省电力公司聊城供电公司 Outdoor ring main unit running state supervision system and method based on data analysis

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2897768Y (en) * 2006-01-25 2007-05-09 刘汝同 Container locker of agricultural truck
CN105629031A (en) * 2015-12-27 2016-06-01 东北电力大学 Portable ring network cabinet data tour inspection acquisition method based on internet of things information integration
CN206490311U (en) * 2017-01-04 2017-09-12 繁昌县易能科技有限责任公司 A kind of spliced combination power distribution cabinet
CN206619827U (en) * 2017-02-15 2017-11-07 重庆汉嘉电气股份有限公司 Top cover and electrical control cubicles
CN207801274U (en) * 2018-01-26 2018-08-31 广东粤明动力有限公司 A kind of heat dissipation power distribution cabinet
CN108695704A (en) * 2018-06-07 2018-10-23 柳州易旺科技有限公司 A kind of power cabinet based on intelligent monitoring

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2897768Y (en) * 2006-01-25 2007-05-09 刘汝同 Container locker of agricultural truck
CN105629031A (en) * 2015-12-27 2016-06-01 东北电力大学 Portable ring network cabinet data tour inspection acquisition method based on internet of things information integration
CN206490311U (en) * 2017-01-04 2017-09-12 繁昌县易能科技有限责任公司 A kind of spliced combination power distribution cabinet
CN206619827U (en) * 2017-02-15 2017-11-07 重庆汉嘉电气股份有限公司 Top cover and electrical control cubicles
CN207801274U (en) * 2018-01-26 2018-08-31 广东粤明动力有限公司 A kind of heat dissipation power distribution cabinet
CN108695704A (en) * 2018-06-07 2018-10-23 柳州易旺科技有限公司 A kind of power cabinet based on intelligent monitoring

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