A device for load forecasting in distribution network

Abstract

The utility model discloses a load prediction device for a distribution network, which belongs to the field of electric power technology. The load prediction device for a distribution network comprises a box body and an installation box fixed on the top of the box body, an alarm is embedded in one end of the installation box, and a cavity at the other end of the installation box is arranged as a receiving groove, an electromagnetic plate is fixed on one side of the inner wall of the receiving groove, and a fixed tube is installed on the other side of the inner wall of the receiving groove, a telescopic rod is elastically inserted in the fixed tube, a magnetic attraction plate attracted to the electromagnetic plate is fixed on the side wall of the telescopic rod, and first electrode rings are embedded on both sides of one end of the telescopic rod extending into the fixed tube, a second electrode ring located between two first electrode rings is installed on the inner wall of the fixed tube, and a sealing door is hingedly installed on the side wall of the box body. The load prediction device for a distribution network is convenient for alarming for disconnection and short circuit of the distribution network, thereby improving the alarm effect of the load of the distribution network.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to a device for predicting load in a distribution network. Background Art

[0002] At present, with the construction of intelligent distribution network, load forecasting and adjustment optimization of distribution network and State Grid substation have become important technologies to ensure the safe and stable operation of distribution network. This reflects the increasing requirements for optimal allocation of distribution network resources, and also puts forward higher requirements for dispatching operation and dispatching optimization. At present, the existing load forecasting equipment for distribution network often lacks alarm devices, and cannot give an alarm in time when the equipment is open circuit or short circuit, which leads to equipment damage and increases the subsequent maintenance cost.

[0003] The patent with application number 202220929326.2 discloses a load forecasting device for distribution network, including a box body, an alarm switch is fixedly connected to the bottom end of the box body, a slide groove is opened at the bottom end of the box body, a magnet block is slidably connected in the slide groove, a group of springs are fixedly connected between the magnet block and the slide groove, a light rod is fixedly connected to the end of the magnet block, an electromagnet is fixedly connected to the bottom end of the box body, and the electromagnet is fitted with the outer wall of the magnet block, and a wire is connected between the electromagnet and the box body, which solves the problem that the existing load forecasting equipment for distribution network often lacks an alarm device, and cannot give an alarm in time when the equipment is in a short circuit or short circuit, thereby causing equipment damage and increasing the subsequent maintenance cost.

[0004] In the above technical solution, when the box is in a power outage or short circuit, the electromagnet is disconnected. At this time, the electromagnet and the magnet block are no longer magnetically attracted. Under the elastic force of the spring, the magnet block drives the light rod to move along the slide groove toward the alarm switch. However, the electromagnet can no longer be magnetically attracted only when the circuit is in a power outage. When the circuit is in a short circuit, due to the influence of electrical equipment with resistance such as the electromagnet, the current in the circuit will only increase as the resistance becomes smaller, so the magnetic attraction of the electromagnet will also increase. Therefore, the above technical solution cannot alarm the short-circuited distribution network, and the alarm effect is poor. Therefore, the present application provides a load prediction device for distribution network to meet the needs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a load prediction device for a distribution network to solve the problem that when the circuit is in a short circuit, due to the influence of electrical equipment with resistance such as electromagnets, the current in the circuit will only increase as the resistance becomes smaller, so the magnetic attraction of the electromagnet will also increase accordingly. Therefore, the above technical solution cannot alarm the short-circuited distribution network and the alarm effect is poor.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a device for load prediction in a distribution network, comprising a box body and an installation box fixed on the top of the box body, an alarm device embedded in one end of the installation box, and a cavity at the other end of the installation box is configured as a receiving groove, an electromagnetic plate is fixed on one side of the inner wall of the receiving groove, and a fixing tube is installed on the other side of the inner wall of the receiving groove, a telescopic rod is elastically inserted in the fixing tube, and a magnetic attraction plate that engages with the electromagnetic plate is fixed on the side wall of the telescopic rod.

[0007] Optionally, first electrode rings are nested on both sides of one end of the telescopic rod extending into the fixed tube, and a second electrode ring located between the two first electrode rings is installed on the inner wall of the fixed tube.

[0008] Optionally, a sealed door is hingedly mounted on the side wall of the box, and a transparent window is embedded and fixed on the top of the sealed door.

[0009] Optionally, heat dissipation grooves are provided at both ends of the box body, and screw holes are provided in a rectangular array at the top of the box body.

[0010] Optionally, connecting wires connected in series with the electromagnetic plate are fixed at both ends of the installation box, and the bottom ends of the two connecting wires are embedded in the box.

[0011] Optionally, a protective cover is mounted on the installation box, and bolts are mounted on the bottom end of the protective cover in a rectangular array.

[0012] Optionally, the bottom ends of the plurality of bolts pass through the protective cover and are threadedly inserted into the screw holes.

[0013] Optionally, through holes are equidistantly formed on one side of the top surface of the installation box, and a plurality of the through holes are connected to the alarm.

[0014] Optionally, the alarm is electrically connected to the second electrode ring and the two first electrode rings respectively.

[0015] Optionally, a spring is embedded in the fixed tube, and two ends of the spring are fixedly connected to the inner wall of the fixed tube and the telescopic rod respectively.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, a mounting box is fixed on the top of the box body, and an alarm and a fixing tube are respectively embedded at both ends of the mounting box. When the circuit is started, the electromagnetic plate is started synchronously, and the magnetic force of the electromagnetic plate drives the magnetic plate to move. During the movement, the magnetic plate pulls the telescopic rod to slide in the fixing tube, and pulls the spring to elastically deform during the sliding process. Since the elastic force of the spring is in an upward state after the elastic deformation, when the elastic force of the spring is greater than the suction force of the electromagnetic plate, the magnetic plate and the telescopic rod remain fixed in the fixing tube, and the second electrode ring moves between the two first electrode rings. When a circuit is broken, the electromagnetic plate is powered off, and the tension of the spring pulls the telescopic rod to retract into the fixed tube. The first electrode ring on the telescopic rod contacts the second electrode ring during the movement. When a short circuit occurs in the circuit, the current in the circuit increases, causing the magnetic force of the electromagnetic plate to increase and be greater than the tension of the spring, thereby driving the magnetic suction plate and the electromagnetic plate to attract each other, and pulling the telescopic rod to move during the attraction process, thereby making the first electrode ring contact with the second electrode ring, and starting the alarm after contact, thereby facilitating the alarm of circuit breaks and short circuits in the distribution network, and improving the alarm effect of the distribution network load. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the installation box of the utility model;

[0022] Figure 4 It is a schematic diagram of the fixed pipe split structure of the utility model.

[0023] [reference numerals]

[0024] 1. Box body; 2. Heat dissipation slot; 3. Protective cover; 4. Transparent window; 5. Sealed door; 6. Installation box; 7. Connecting wires; 8. First electrode ring; 9. Bolt; 10. Screw hole; 11. Through hole; 12. Alarm; 13. Fixing tube; 14. Receiving slot; 15. Electromagnetic plate; 16. Magnetic plate; 17. Second electrode ring; 18. Spring; 19. Telescopic rod.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0026] The following is a detailed description of a load forecasting device for a distribution network provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0027] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0029] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0030] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0031] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a load prediction device for a distribution network, which includes a box body 1 and an installation box 6 fixed on the top of the box body 1, an alarm 12 is embedded in one end of the installation box 6, and the other end of the installation box 6 is set as a receiving groove 14, an electromagnetic plate 15 is fixed on one side of the inner wall of the receiving groove 14, and a fixing tube 13 is installed on the other side of the inner wall of the receiving groove 14, a telescopic rod 19 is elastically inserted in the fixing tube 13, and a magnetic attraction that engages with the electromagnetic plate 15 is fixed on the side wall of the telescopic rod 19. Plate 16, and the telescopic rod 19 extends into one end of the fixed tube 13, and two first electrode rings 8 are nested in the interval, which are respectively a disconnecting first electrode ring and a short-circuiting first electrode ring, wherein, relative to the position of the magnetic attraction plate 16, the short-circuiting first electrode ring is closer to the magnetic attraction plate 16 than the disconnecting first electrode ring, and the inner wall of the fixed tube 13 is installed with a second electrode ring 17 located between the two first electrode rings 8, and the alarm 12 is activated after the first electrode ring 8 contacts the second electrode ring 17, and the working mode of the first electrode ring 8 and the second electrode ring is similar to that of a touch switch.

[0032] A sealed door 5 is hingedly installed on the side wall of the box body 1, and a transparent window 4 is embedded and fixed on the top of the sealed door 5. Heat dissipation grooves 2 are provided at both ends of the box body 1, and the heat dissipation grooves 2 at both ends of the box body 1 dissipate heat for the equipment therein. Screw holes 10 are provided in a rectangular array on the top of the box body 1, and a connecting wire 7 connected to the electromagnetic plate 15 is respectively provided at both ends of the installation box 6, one end of the connecting wire 7 is connected to the electromagnetic plate 15, and the other end of the connecting wire 7 is embedded in the box body 1. A protective cover 3 is installed on the installation box 6, and bolts 9 are installed on the bottom end of the protective cover 3 in a rectangular array. The bottom ends of multiple bolts 9 are threadedly inserted in the screw holes 10. After tightening the bolts 9, the protective cover 3 remains fixed. The protective cover 3 protects the installation box 6 and the parts therein. In order to facilitate the transmission of the sound of the alarm 12, multiple small holes are provided on the protective cover 3.

[0033] like Figure 3 and Figure 4As shown, through holes 11 are equidistantly provided on one side of the top surface of the installation box 6, and the multiple through holes 11 are all connected to the alarm 12. The alarm 12 is electrically connected to the second electrode ring 17 and the two first electrode rings 8 respectively. A spring 18 is embedded in the fixed tube 13, and the two ends of the spring 18 are fixedly connected to the inner wall of the fixed tube 13 and the telescopic rod 19 respectively. When the circuit is broken, the electromagnetic plate 15 is powered off, and the tension of the spring 18 pulls the telescopic rod 19 to shrink into the fixed tube 13. During the movement of the telescopic rod 19, the first electrode ring 8 on it contacts the second electrode ring 17. When the circuit is short-circuited, the current in the circuit increases, causing the magnetic force of the electromagnetic plate 15 to increase and be greater than the tension of the spring 18, thereby driving the magnetic attraction plate 16 and the electromagnetic plate 15 to attract each other, and pulling the telescopic rod 19 to move during the attraction process, thereby making the first electrode ring 8 contact the second electrode ring 17, and starting the alarm 12 to alarm after contact.

[0034] According to the working principle of the present invention, when the circuit is started, the electromagnetic plate 15 is started synchronously, and the magnetic force of the electromagnetic plate 15 drives the magnetic suction plate 16 to move. During the movement, the magnetic suction plate 16 pulls the telescopic rod 19 to slide in the fixed tube 13, and pulls the spring 18 to elastically deform during the sliding process. Since the elastic force of the spring 18 is in an upward state after the elastic deformation, when the elastic force of the spring 18 is equal to the suction force of the electromagnetic plate 15, the magnetic suction plate 16 and the telescopic rod 19 remain fixed in the fixed tube 13. At this time, the second electrode ring 17 moves between the two first electrode rings 8. When the circuit is short-circuited, the electromagnetic plate 15 is powered off, and the tension of the spring 18 pulls the telescopic rod 19 to retract into the fixed tube 13. During the movement of the telescopic rod 19, the first electrode ring 8 and the second electrode ring 17 are in contact with each other. When the circuit is short-circuited, the current in the circuit increases, causing the magnetic force of the electromagnetic plate 15 to increase and be greater than the tension of the spring 18, thereby driving the magnetic attraction plate 16 and the electromagnetic plate 15 to attract each other, and pulling the telescopic rod 19 to move during the attraction process, thereby causing the first electrode ring 8 to contact the second electrode ring 17, and activating the alarm 12 to sound an alarm after the contact.

[0035] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A load prediction device for a distribution network, comprising a box and a mounting box fixed on the top of the box, characterized in that: An alarm is embedded in one end of the installation box, and the cavity at the other end of the installation box is set as a receiving groove, an electromagnetic plate is fixed on one side of the inner wall of the receiving groove, and a fixing tube is installed on the other side of the inner wall of the receiving groove, a telescopic rod is elastically inserted in the fixing tube, and a magnetic plate that engages with the electromagnetic plate is fixed on the side wall of the telescopic rod.

2. The device for load prediction of distribution network according to claim 1, characterized in that: First electrode rings are nested on both sides of one end of the telescopic rod extending into the fixed tube, and a second electrode ring located between the two first electrode rings is installed on the inner wall of the fixed tube.

3. The device for load prediction of distribution network according to claim 2, characterized in that: A sealed door is hingedly mounted on the side wall of the box body, and a transparent window is embedded and fixed on the top of the sealed door.

4. The device for load prediction of distribution network according to claim 3, characterized in that: Both ends of the box body are provided with heat dissipation grooves, and the top of the box body is provided with screw holes in a rectangular array.

5. The device for load prediction of distribution network according to claim 4, characterized in that: Both ends of the installation box are fixed with connecting wires connected in series with the electromagnetic plate, and the bottom ends of the two connecting wires are embedded in the box body.

6. The device for load prediction of distribution network according to claim 5, characterized in that: A protective cover is sleeved and installed on the installation box, and bolts are installed in a rectangular array at the bottom end of the protective cover.

7. The device for load prediction of distribution network according to claim 6, characterized in that: The bottom ends of the plurality of bolts all pass through the protective cover and are threadedly inserted into the screw holes.

8. The device for load prediction of distribution network according to claim 7, characterized in that: One side of the top surface of the installation box is provided with through holes at equal intervals, and a plurality of the through holes are all connected to the alarm.

9. The device for load prediction of distribution network according to claim 8, characterized in that: The alarm is electrically connected to the second electrode ring and the two first electrode rings respectively.

10. The device for load prediction of distribution network according to claim 1, characterized in that: A spring is embedded in the fixed tube, and two ends of the spring are fixedly connected to the inner wall of the fixed tube and the telescopic rod respectively.

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