Intelligent power grid data acquisition and analysis platform

Abstract

The invention relates to the technical field of power grid data acquisition devices, in particular to an intelligent power grid data acquisition and analysis platform. The device comprises an electric box and a fixed box fixedly mounted on a wall body, a plurality of mounting racks are fixedly connected to the inner wall of one side, far away from the opening of the box body, of the electric box, an electric meter body is mounted on each mounting rack, a lifting mechanism is arranged in the fixed box, and a winding mechanism is mounted below the plurality of electric meter bodies in the electric box; in the intelligent power grid data acquisition and analysis platform, the lifting mechanism adjusts the relative position of the electric box and the fixed box so as to realize the lifting of the electric meter bodies, the plurality of electric meter bodies are connected in parallel through the lead, the lead for connecting the plurality of electric meter bodies in parallel is connected in series with a low-voltage cable, and the winding mechanism is used for winding the low-voltage cable. And the coiling mechanism can adjust the length of the low-voltage cable loosened by the coiling mechanism so as to adapt to the change of the relative position of the electric box and the fixed box.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid data acquisition devices, and in particular to a smart grid data acquisition and analysis platform. Background Art

[0002] As an indispensable electronic component in the smart grid data collection and analysis platform, smart meters mainly monitor the user's electricity consumption by collecting voltage and current data in the power grid system, and then provide detailed load data for the power grid company. Civilian smart meters are usually installed high up on the user's home wall. Although this can prevent the meter from interference from the ground, when the grid staff comes to repair or replace the meter, the meter located high up will cause operational inconvenience.

[0003] In the related art, the invention patent with announcement number CN106932625B discloses an easy-to-install smart meter, the technical solution of which is as follows: including a housing, a mounting mechanism and a central control mechanism, the mounting mechanism includes a fixing plate and a mounting support, the mounting assembly includes a first transmission rod, a reset unit, a guide unit, a transmission gear, a second transmission rod and a limit block, the wireless communication module includes a wireless communication circuit, and the wireless communication circuit includes an integrated circuit. In the easy-to-install smart meter, the housing and the fixing plate are reliably and flexibly connected by the mounting assembly, thereby improving the flexibility of the meter installation and improving its practicality. It can be seen that in the prior art, the meter can be adjusted to a position that is convenient for the grid staff to operate by a lifting device.

[0004] However, when adjusting the position of the electric meter by means of a lifting device, the following problems may occur: 1. After the meter is installed in the electrical box, the wires connected to it are also fixed. When the position of the meter changes, the wires connected to the meter will limit the movement of the meter. If too much excess wire is reserved, it is easy to cause leakage and electric shock.

[0005] 2. Mechanical components used in the lifting device (the installation mechanism mentioned in the above patent), such as the first spring, the second spring and other structures, are exposed to the outdoors for a long time. If they rust, the stability of the installation mechanism driving the shell to rise and fall will be affected.

[0006] In view of this, we propose a smart grid data collection and analysis platform to improve the shortcomings of existing technologies. Summary of the invention

[0007] The purpose of the present invention is to provide a smart grid data collection and analysis platform to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention aims to provide a smart grid data collection and analysis platform, including an electrical box and a fixed box fixedly mounted on a wall; A plurality of mounting brackets are fixedly connected to the inner wall of the electric box away from the box opening, each mounting bracket is mounted with an electric meter body, a lifting mechanism is provided inside the fixed box, and a winding mechanism is installed below the electric meter bodies in the electric box; The lifting mechanism realizes the lifting and lowering of the electric meter body by adjusting the relative position of the electric box and the fixed box. A plurality of the electric meter bodies are connected in parallel through wires, and the wires of the plurality of parallel electric meter bodies are connected in series with a low-voltage cable. The winding mechanism is used to wind the low-voltage cable, and the winding mechanism can adjust the length of the low-voltage cable that is loosened by itself to adapt to the change in the relative position of the electric box and the fixed box. When the lifting mechanism drives the electric box to descend from a high place to a low place, the winding mechanism winds the low-voltage cable to make the low-voltage cable in a straight state; When the lifting mechanism drives the electric box to rise from a low position to a high position, the winding mechanism releases the low-voltage cable to release the restriction of the position of the electric box by the stretched low-voltage cable; When the winding mechanism reels in the low-voltage cable, the electrical box can straighten the low-voltage cable and scrape off adherent attachments on the surface of the low-voltage cable.

[0009] As a further improvement of the technical solution, a plurality of wire passing holes are provided at the bottom of the electrical box, and each of the wire passing holes is bent downward from the inner bottom wall of the electrical box.

[0010] As a further improvement of the present technical solution, the lifting mechanism includes a pair of limit bolts symmetrically arranged in height and multiple pairs of fixing bolts symmetrically arranged in height, the limit bolts and the fixing bolts are fixedly connected to the inner wall of the fixed box, a ball screw is provided between the two limit bolts, a screw nut seat that can be lifted and lowered is provided on the ball screw, and the screw nut seat is fixedly connected to the electrical box.

[0011] As a further improvement of the technical solution, the lifting mechanism also includes a guide rod fixedly connected between each pair of fixing bolts, each of the guide rods is slidably connected to a stabilizing seat, and each of the stabilizing seats is fixedly connected to the electrical box.

[0012] As a further improvement of the technical solution, the ball screw is threadedly connected to the screw nut seat, a lifting motor is provided at one end of the ball screw, and the ball screw is coaxially connected to the output shaft of the lifting motor.

[0013] As a further improvement of the technical solution, the winding mechanism includes a pair of spaced-apart mounting seats, a winding drum is rotatably connected between the two mounting seats, a winding motor is provided at one end of the winding drum, and the winding drum is coaxially connected to the output shaft of the winding motor.

[0014] As a further improvement of the present technical solution, the winding mechanism also includes a fixed ring, which is rotatably connected to the winding drum, and the winding drum is provided with an annular wire groove inside the fixed ring, and the width of the annular wire groove is smaller than the width of the fixed ring.

[0015] As a further improvement of the technical solution, the low-voltage cable passes through the annular cable groove and is fixedly connected to the fixing ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the smart grid data collection and analysis platform, a lifting mechanism is set up to adjust the relative position of the electric box and the fixed box to achieve the lifting and lowering of the electric meter body. Multiple electric meter bodies are connected in parallel through wires, and the wires of the multiple parallel electric meter bodies are connected in series with a low-voltage cable. The winding mechanism is used to wind the low-voltage cable, and the winding mechanism can adjust the length of the low-voltage cable loosened by itself to adapt to the change in the relative position of the electric box and the fixed box; when the winding mechanism reels in the low-voltage cable, the electric box can straighten the low-voltage cable and scrape off the adherent attachments on the surface of the low-voltage cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a partially cutaway perspective view of the present invention; Figure 3 It is a partially cut-away left view of the present invention; Figure 4 The first diagram is a position diagram of the electric meter body of the present invention in the electric box; Figure 5 The second diagram is the position diagram of the electric meter body of the present invention in the electric box; Figure 6 is a cutaway perspective view of the lifting mechanism of the present invention; Figure 7 It is a cut-away left view of the lifting mechanism of the present invention; Figure 8 is a three-dimensional diagram of the winding mechanism of the present invention; Fig. 9 It is a front view of the winding mechanism of the present invention.

[0018] The meaning of each number in the figure is: 100, electric box; 101, mounting frame; 102, electric meter body; 103, wire hole; 110, fixing box; 200, lifting mechanism; 210, limiting bolt; 211, ball screw; 212, lifting motor; 213, screw nut seat; 220, fixing bolt; 221, guide rod; 222, stabilizing seat; 300, winding mechanism; 310, mounting seat; 320, winding drum; 330, winding motor; 340, fixing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] If the lifting device (the mounting mechanism with a spring structure mentioned in the background technology) is directly exposed to the outdoors, long-term wind and rain will easily cause the metal structure to rust, which will not only affect the stability when adjusting the height of the shell, but also affect its bearing capacity for the shell and internal structure. Therefore, the present application places the lifting device (the lifting mechanism 200 to be described below) inside the rain shield (hereinafter referred to) to protect it from wind and rain and extend its service life.

[0021] See also Figure 1-Figure 5 As shown, the purpose of this embodiment is to provide a smart grid data collection and analysis platform, including an electric box 100 and a fixed box 110 fixedly installed on a wall; A plurality of mounting brackets 101 are fixedly connected to the inner wall of the electrical box 100 away from the box opening, and an electric meter body 102 is mounted on each mounting bracket 101. A lifting mechanism 200 is provided inside the fixed box 110, and a winding mechanism 300 is installed below the plurality of electric meter bodies 102 in the electrical box 100.

[0022] The lifting mechanism 200 adjusts the relative position of the electric box 100 and the fixed box 110 to achieve the lifting of the electric meter body 102. Multiple electric meter bodies 102 are connected in parallel through wires, and the wires of the multiple electric meter bodies 102 in parallel are connected in series with a low-voltage cable. The winding mechanism 300 is used to wind the low-voltage cable, and the winding mechanism 300 can adjust the length of the low-voltage cable that is loosened by itself to adapt to the change of the relative position of the electric box 100 and the fixed box 110. When the lifting mechanism 200 drives the electric box 100 to descend from a high position to a low position, the winding mechanism 300 winds the low-voltage cable to make the low-voltage cable in a straight state; When the lifting mechanism 200 drives the electric box 100 to rise from a low position to a high position, the winding mechanism 300 releases the low-voltage cable to release the restriction of the position of the electric box 100 by the low-voltage cable in a straight state.

[0023] When the winding mechanism 300 reels the low-voltage cable, the electrical box 100 can straighten the low-voltage cable and scrape off the adherent attachments on the surface of the low-voltage cable.

[0024] Since water has a certain conductivity, when a low-voltage cable with water is drawn into the electrical box 100, the water may reduce the insulation performance between the internal wires. If water accumulates at the wire joints or on the internal circuit components of the electrical box 100, it may cause a conductive path to be formed between conductors with different potentials, thereby causing a short circuit fault, making the electric meter body 102 unable to work normally, and even causing a trip, affecting the stability of the power supply system.

[0025] Moreover, dust is usually composed of various fine particles, some of which may have a certain degree of conductivity. When dust adheres to the surface of the low-voltage cable and enters the inside of the electrical box 100, it may form a layer of high resistance coating at the contact point between the wire and the meter body 102, which will increase the contact resistance. According to Joule's law When the contact resistance increases, more heat will be generated when current passes through, which will not only reduce the measurement accuracy of the meter body 102, but also accelerate the aging of the wires and internal components of the meter body 102.

[0026] In addition, the hard particles in the dust will rub against other components in the electric box 100 as the low-voltage cables are drawn in, especially at the wire entry holes, fixing clips, etc. between the wires and the meter body 102. In the long run, this friction will wear the insulation layer of the wires, reduce the service life of the wires, and may also damage the internal structures of the electric box 100 and the meter body 102, affecting their normal operation.

[0027] More importantly, the presence of dust and water may interfere with the measurement circuits and sensors inside the meter body 102. For example, dust may be adsorbed on the iron core of the current transformer or voltage transformer, affecting its electromagnetic induction effect, resulting in inaccurate measured current and voltage signals. Water may make the electronic components inside the meter body 102 damp, change its electrical parameters, and further affect the meter body 102's measurement accuracy of electrical quantity (such as voltage and current), causing deviations in the measurement results, which will affect the accuracy of the results obtained by the entire smart grid data acquisition and analysis platform.

[0028] Therefore, a plurality of wire holes 103 are provided at the bottom of the electrical box 100, and each wire hole 103 is bent downward from the inner bottom wall of the electrical box 100. In this way, when the winding mechanism 300 rolls the low-voltage cable that is loosened outside the electrical box 100 into the interior, the low-voltage cable contacts the inner wall of the wire hole 103 with multiple bends inside, thereby scraping off the attachments (such as water, dust, etc.) on the surface of the low-voltage cable, and preventing water from entering the electrical box 100 along with the cable (the diameter of the wire hole 103 can be set to fit the low-voltage cable according to the size of the low-voltage cable), and at the same time, the smooth treatment at the corner of the wire hole 103 prevents the low-voltage cable from causing damage to the cable when the low-voltage cable passes through the wire hole 103.

[0029] Working principle: When an electric meter body 102 is damaged and needs to be repaired or replaced, the lifting mechanism 200 is started to lower the height of the electrical box 100 located at a high place. At the same time, the winding mechanism 300 winds the loosened low-voltage cable outside the electrical box 100 into the interior of the electrical box 100, so that the length of the loosened low-voltage cable can be adapted to the relative position between the electrical box 100 and the fixed box 110. After the electric meter body 102 is repaired or replaced, the winding mechanism 300 is started again to loosen the length of the low-voltage cable that was previously wound in, so that the height of the electric meter body 102 returns to the position before being lowered.

[0030] In order to lower the meter body 102 to a height that is convenient for grid workers to operate when it is necessary to replace or repair it, a lifting mechanism 200 that can adjust the relative position between the electric box 100 and the fixed box 110 is provided.

[0031] like Figure 6 and Figure 7 As shown, the lifting mechanism 200 includes a pair of limit bolts 210 symmetrically arranged in height and multiple pairs of fixed bolts 220 symmetrically arranged in height. The limit bolts 210 and the fixed bolts 220 are both fixedly connected to the inner wall of the fixed box 110. A ball screw 211 is provided between the two limit bolts 210. The ball screw 211 is provided with a screw nut seat 213 that can be lifted and lowered. The screw nut seat 213 is fixedly connected to the electrical box 100.

[0032] The improvement lies in that the lifting mechanism 200 further includes a guide rod 221 fixedly connected between each pair of fixing bolts 220 , each guide rod 221 is slidably connected with a stabilizing seat 222 , and each stabilizing seat 222 is fixedly connected to the electrical box 100 .

[0033] Furthermore, the ball screw 211 is threadedly connected to the screw nut seat 213 , and a lifting motor 212 is disposed at one end of the ball screw 211 . The ball screw 211 is coaxially connected to the output shaft of the lifting motor 212 .

[0034] It should be noted that when the height of the meter body 102 needs to be lowered, the power supply of the lifting motor 212 is turned on, and the lifting motor 212 drives the ball screw 211 coaxially connected to its output shaft to rotate, and the ball screw 211 drives the screw nut seat 213 thereon to move downward in a straight line, and the electrical box 100 is fixedly connected to the screw nut seat 213. Therefore, the meter body 102 in the electrical box 100 can be lowered to a height that is convenient for the staff to operate. After the maintenance is completed, the lifting motor 212 drives the ball screw 211 to rotate, and the ball screw 211 drives the screw nut seat 213 to drive the electrical box 100 to reset.

[0035] exist Figure 8 and Fig. 9 In the figure, the winding mechanism 300 includes a pair of spaced-apart mounting seats 310, a winding drum 320 is rotatably connected between the two mounting seats 310, a winding motor 330 is provided at one end of the winding drum 320, and the winding drum 320 is coaxially connected to the output shaft of the winding motor 330.

[0036] The improvement lies in that the wire winding mechanism 300 further comprises a fixing ring 340 , which is rotatably connected to the wire winding drum 320 , and the wire winding drum 320 is provided with an annular wire passing groove inside the fixing ring 340 , and the width of the annular wire passing groove is smaller than the width of the fixing ring 340 .

[0037] The low-voltage cable passes through the annular cable groove and is fixedly connected to the fixing ring 340 .

[0038] It should be disclosed that one end of the low-voltage cable connected in series with the wires on multiple meter bodies 102 passes through the end of the winding drum 320 into the interior of the winding drum 320, then passes through the inside of the annular wire groove, and is finally fixed to the fixing ring 340, while the end of the low-voltage cable connected to the transformer is wound on the outer surface of the winding drum 320, and finally passes through the electrical box 100 from the wire hole 103.

[0039] That is to say, when the winding motor 330 drives the winding drum 320 to rotate forward and reverse (the winding motor 330 can optionally use a servo motor) to loosen and reel in the low-voltage cable (the end connected to the transformer), the length of the end of the low-voltage cable connected to each meter body 102 is actually fixed relative to the winding drum 320 (because it is fixed by the fixing ring 340 and rotates relative to the winding drum 320), thereby achieving the ability to adjust the length of the low-voltage cable loosened by the winding drum 320 outside the electrical box 100 according to the relative position difference between the electrical box 100 and the fixed box 110, thereby facilitating the grid staff to repair the meter body 102, thereby ensuring the stable operation of the entire smart grid data collection and analysis platform.

[0040] Based on the above explanation of the effect principle of the lifting mechanism 200 and the winding mechanism 300, the following further explains the role of the cooperation between the two: When the meter body 102 can operate normally, the electric box 100 is stably located at a high position due to the locking action between the ball screw 211 and the screw nut seat 213. At this time, the length of the winding drum 320 released to the outside of the electric box 100 is relatively long, but since the electric box 100 is located at a high height, the low-voltage cable is still in a straight state.

[0041] As the meter body 102 is damaged over time and needs to be repaired or replaced, the lifting motor 212 drives the ball screw 211 to rotate, so that the screw nut seat 213 drives the electric box 100 to stably descend to a lower position (because the electric box 100 is always under the limiting effect of the stable seat 222 sliding along the guide rod 221 during the descent process). At the same time, the winding motor 330 drives the winding drum 320 to rotate, and the low-voltage cable that is no longer straightened as the height of the electric box 100 decreases is rolled into the inside of the electric box 100 to prevent the low-voltage cable outside the electric box 100 from interfering with the maintenance work of the staff. In the process of the low-voltage cable being rolled into the electric box 100 by the winding drum 320, the attachments on the surface of the low-voltage cable that have been exposed to the outside for a long time are scraped off by the wire hole 103, thereby isolating these attachments such as water and dust from the outside of the electric box 100.

[0042] After the meter body 102 is repaired and replaced, the lifting motor 212 drives the ball screw 211 to rotate, so that the screw nut seat 213 drives the electric box 100 to rise stably to a high place. At the same time, the winding drum 320 loosens the voltage cable that was originally wound in to provide a margin for the electric box 100 to rise, ensuring that when the electric box 100 rises to a high place, the cable exposed outside the electric box 100 can be in a straight state again.

[0043] In summary, the working principle of the present invention is as follows: When a meter body 102 is damaged and needs to be repaired or replaced, the power of the lifting motor 212 is turned on, and the lifting motor 212 drives the ball screw 211 coaxially connected to the output shaft to rotate, and the ball screw 211 drives the screw nut seat 213 thereon to move downward in a straight line, and the electric box 100 is fixedly connected to the screw nut seat 213, so the meter body 102 in the electric box 100 can be lowered to a height that is convenient for the staff to operate. After the maintenance is completed, the lifting motor 212 drives the ball screw 211 to rotate, and the ball screw 211 drives The screw nut seat 213 drives the electrical box 100 to reset. At the same time, the winding motor 330 drives the winding drum 320 to rotate forward and reverse, so that when the low-voltage cable (the end connected to the transformer) is loosened and wound, the length of the end of the low-voltage cable connected to each meter body 102 is actually fixed relative to the winding drum 320 (because it is fixed by the fixing ring 340 and rotates relative to the winding drum 320), thereby achieving the ability to adjust the length of the low-voltage cable loosened by the winding drum 320 outside the electrical box 100 according to the relative position difference between the electrical box 100 and the fixed box 110.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A smart grid data collection and analysis platform, comprising an electrical box (100) and a fixed box (110) fixedly mounted on a wall, characterized in that: A plurality of mounting frames (101) are fixedly connected to an inner wall of a side of the electric box (100) away from the box opening, and an electric meter body (102) is mounted on each of the mounting frames (101); a lifting mechanism (200) is provided inside the fixed box (110), and a winding mechanism (300) is installed below the plurality of electric meter bodies (102) in the electric box (100); The lifting mechanism (200) adjusts the relative position of the electric box (100) and the fixed box (110) to achieve lifting of the electric meter body (102); a plurality of the electric meter bodies (102) are connected in parallel via wires, and the wires of the plurality of electric meter bodies (102) connected in parallel are connected in series with a low-voltage cable; the winding mechanism (300) is used to wind the low-voltage cable, and the winding mechanism (300) can adjust the length of the low-voltage cable that is loosened by itself to adapt to the change in the relative position of the electric box (100) and the fixed box (110); When the lifting mechanism (200) drives the electric box (100) to descend from a high position to a low position, the winding mechanism (300) winds in the low-voltage cable, so that the low-voltage cable is in a straightened state; When the lifting mechanism (200) drives the electric box (100) to rise from a low position to a high position, the winding mechanism (300) releases the low-voltage cable to release the restriction of the position of the electric box (100) by the stretched low-voltage cable; When the winding mechanism (300) reels the low-voltage cable, the electrical box (100) can straighten the low-voltage cable and scrape off the attached matter on the surface of the low-voltage cable.

2. The smart grid data acquisition and analysis platform according to claim 1 is characterized by: A plurality of wire-passing holes (103) are provided at the bottom of the electrical box (100), and each of the wire-passing holes (103) is bent downward from the inner bottom wall of the electrical box (100).

3. The smart grid data acquisition and analysis platform according to claim 1, characterized in that: The lifting mechanism (200) comprises a pair of limit bolts (210) symmetrically arranged in height and a plurality of pairs of fixing bolts (220) symmetrically arranged in height, the limit bolts (210) and the fixing bolts (220) being fixedly connected to the inner wall of the fixing box (110), a ball screw (211) being arranged between the two limit bolts (210), a screw nut seat (213) capable of lifting and lowering being arranged on the ball screw (211), and the screw nut seat (213) being fixedly connected to the electric box (100).

4. The smart grid data acquisition and analysis platform according to claim 3 is characterized by: The lifting mechanism (200) further comprises a guide rod (221) fixedly connected between each pair of fixing bolts (220), each guide rod (221) being slidably connected to a stabilizing seat (222), and each stabilizing seat (222) being fixedly connected to the electrical box (100).

5. The smart grid data collection and analysis platform according to claim 3 is characterized by: The ball screw (211) is threadedly connected to the screw nut seat (213); a lifting motor (212) is provided at one end of the ball screw (211); and the ball screw (211) is coaxially connected to the output shaft of the lifting motor (212).

6. The smart grid data acquisition and analysis platform according to claim 1, characterized in that: The wire winding mechanism (300) comprises a pair of spaced-apart mounting seats (310), a wire winding drum (320) being rotatably connected between the two mounting seats (310), a wire winding motor (330) being provided at one end of the wire winding drum (320), and the wire winding drum (320) being coaxially connected to an output shaft of the wire winding motor (330).

7. The smart grid data acquisition and analysis platform according to claim 6, characterized in that: The wire winding mechanism (300) further comprises a fixing ring (340) which is rotatably connected to the wire winding drum (320); the wire winding drum (320) is provided with an annular wire passing groove inside the fixing ring (340); the width of the annular wire passing groove is smaller than the width of the fixing ring (340).

8. The smart grid data collection and analysis platform according to claim 7, characterized in that: The low-voltage cable passes through the annular cable groove and is fixedly connected to the fixing ring (340).

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