Power distribution network efficient energy-saving monitoring and protection device

Abstract

The utility model discloses a kind of power distribution network efficient energy-saving monitoring protection devices, it is related to power distribution network monitoring protection technical field, to solve the technical problem that the current power distribution network efficient energy-saving monitoring protection device monitors many dead angles, needs multi-point arrangement camera, including rack;Reciprocating screw rod, rotation is installed in rack inner side wall, end portion is equipped with intermittent motion mechanism, the intermittent motion mechanism can be driven by first motor;The utility model drives reciprocating screw rod intermittent rotation by intermittent motion mechanism, can drive rotating screw rod sleeve intermittent translation, and rotating screw rod sleeve's outer sleeve assembly can be along inner sleeve assembly outer side wall circular arc intermittent reciprocating rotation, realize single camera intermittent translation and intermittent rotation on translation path, reduce camera dead angle, increase camera shooting field of view, and intermittent motion, make camera shooting when displacement stop, shooting is relatively clear.

Description

Technical Field

[0001] This utility model relates to the field of power distribution network monitoring and protection technology, and more specifically, to a high-efficiency energy-saving monitoring and protection device for power distribution networks. Background Technology

[0002] As a crucial link between the power system and users, the safe and stable operation and energy conservation of the distribution network are of paramount importance. High-efficiency energy-saving monitoring and protection devices for distribution networks are comprehensive equipment integrating real-time monitoring, intelligent control, safety protection, and energy-saving optimization functions. They can effectively improve the operating efficiency of the distribution network, reduce energy consumption, and ensure power supply reliability. Typically, they collect information remotely through monitoring cameras and connect to the distribution network dispatching platform or cloud management system. This allows for remote viewing of real-time data, historical curves, and equipment status on PCs and mobile devices, enabling unattended operation. Based on big data analysis, they generate energy consumption reports and equipment health assessment reports, providing decision-making basis for power grid planning and operation and maintenance. They can also integrate temperature sensors, humidity sensors, smoke sensors, etc., to monitor the operating environment and status of power distribution equipment (such as switchgear and transformers), preventing faults such as overheating and moisture damage.

[0003] The existing application scenarios for high-efficiency energy-saving monitoring and protection devices for power distribution networks include: 1. Urban low-voltage power distribution networks: installed in distribution rooms of residential communities and commercial complexes to monitor line losses in transformer substations, optimize three-phase load balance, and reduce transformer losses. 2. Industrial parks and mining enterprises: for high-energy-consuming enterprises, to monitor the power efficiency of production lines in real time, control reactive power compensation, and reduce electricity costs; while ensuring the safe operation of heavy equipment. 3. Rural power distribution networks: adapting to the characteristics of long rural power grid lines and dispersed loads, reducing manual inspection costs through remote monitoring and preventing line faults caused by severe weather. 4. New energy access scenarios: combined with distributed photovoltaic and energy storage equipment, monitoring their grid connection status, coordinating photovoltaic output with load demand, and improving the utilization rate of clean energy. Due to the long rural power grid lines and dispersed loads, high-efficiency energy-saving monitoring and protection devices applied in rural power distribution networks should be distributed at multiple points and have a large monitoring range.

[0004] Existing high-efficiency energy-saving monitoring and protection devices for power distribution networks, such as surveillance cameras installed in rural power distribution networks, require multiple camera deployments due to the need to monitor the long lines and dispersed loads of rural power grids. These cameras also need a large monitoring range. While existing cameras can change direction for monitoring (up, down, left, right), they are generally mounted on mounting brackets. This bracket limitation creates a blind spot on the side of the camera facing the bracket. To monitor the area on the other side of the bracket or other areas outside the camera's monitoring range, multiple cameras need to be deployed, increasing costs. Therefore, we propose a high-efficiency energy-saving monitoring and protection device for power distribution networks. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency energy-saving monitoring and protection device for power distribution networks, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: including a frame;

[0007] A reciprocating lead screw is rotatably mounted on the inner side wall of the frame, and an intermittent motion mechanism is installed at its end, which can be driven by a first electric motor.

[0008] The rod body has a clockwise spiral groove and a counterclockwise spiral groove on its surface, and the clockwise spiral groove and the counterclockwise spiral groove are connected end to end;

[0009] The inner sleeve assembly is rotatably connected to the outer wall of the rod body. It works in conjunction with the clockwise and counterclockwise spiral grooves on the outer wall of the rod body to intermittently move back and forth in a straight line along the outer wall of the rod body.

[0010] The outer sleeve assembly is rotatably connected to the outer wall of the inner sleeve assembly and can intermittently reciprocate along the arc of the outer wall of the inner sleeve assembly.

[0011] The camera is mounted on the outer wall of the outer casing assembly.

[0012] As a further description of the above technical solution: the outer wall of the reciprocating lead screw is provided with a rotating lead screw sleeve, the rotating lead screw sleeve including an inner sleeve assembly and an outer sleeve assembly.

[0013] As a further description of the above technical solution: the inner sleeve assembly includes an inner sleeve body, and a slider is fixed on the inner side wall of the inner sleeve body. The slider can cooperate with a clockwise spiral groove and a counterclockwise spiral groove.

[0014] As a further description of the above technical solution: a number of sliding rods are installed on the inner side wall of the frame, and a number of sliding holes that can cooperate with the sliding rods are opened on the periphery of the inner sleeve. The inner sleeve is slidably connected to the outer side wall of the sliding rods through the sliding holes.

[0015] As a further description of the above technical solution: a semi-ring gear and a limiting arc strip are fixed in the middle of the outer side wall of the inner sleeve, and limiting rings are fixed at both ends of the outer side wall of the inner sleeve;

[0016] The outer sleeve assembly includes an outer sleeve body rotatably connected to the outer side wall of the inner sleeve body, and a circular gear that can mesh with a semi-ring gear is rotatably connected to the inner side wall of the outer sleeve body. The circular gear can be driven by a second electric motor.

[0017] As a further description of the above technical solution: the intermittent motion mechanism includes a driven grooved wheel fixed to the end of the reciprocating lead screw and an active dial that can cooperate with the driven grooved wheel, the active dial being driven by a first electric motor.

[0018] The present invention provides the following beneficial effects in the above-described technical solution:

[0019] This invention uses an intermittent motion mechanism to drive a reciprocating lead screw to rotate intermittently, which in turn causes the rotating lead screw sleeve to translate intermittently. Furthermore, the outer sleeve assembly of the rotating lead screw sleeve can intermittently reciprocate along the arc of the outer wall of the inner sleeve assembly. This enables a single camera to translate intermittently and rotate intermittently along the translation path, reducing blind spots and increasing the camera's field of view. The intermittent motion also allows the camera to capture images clearly when its movement pauses, solving the problem of existing power distribution network energy-efficient monitoring and protection devices having many blind spots and requiring multiple camera deployments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure at point A;

[0023] Figure 3 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0024] Figure 4 This is an exploded view of the rotating lead screw sleeve provided in an embodiment of the present utility model;

[0025] Figure 5 A cross-sectional structural diagram of the rotating lead screw sleeve provided in an embodiment of this utility model;

[0026] Figure 6 This is a cross-sectional structural diagram of the rotating lead screw sleeve provided in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Frame; 2. Reciprocating lead screw; 3. Rotating lead screw sleeve; 4. Camera; 5. Intermittent motion mechanism; 6. First electric motor;

[0029] 201. Rod body; 202. Clockwise spiral groove; 203. Counterclockwise spiral groove;

[0030] 301. Inner sleeve component; 302. Outer sleeve component;

[0031] 3011. Inner sleeve; 3012. Sliding ball; 3013. Sliding hole; 3014. Sliding rod; 3015. Half-ring gear; 3016. Limiting arc strip; 3017. Limiting ring;

[0032] 3021. Outer casing; 3022. Circular gear; 3023. Second electric motor;

[0033] 501. Driven grooved wheel; 502. Active dial. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0035] Please see Figures 1-6 This utility model embodiment provides a technical solution: including a frame 1, which serves as the load-bearing foundation of the entire device. The frame 1 is not only used to fix the bearing seats at both ends of the reciprocating lead screw 2, but also to provide rigid support for the slide bar 3014.

[0036] The reciprocating lead screw 2 has a rotating lead screw sleeve 3 on its outer side wall. The rotating lead screw sleeve 3 includes an inner sleeve assembly 301 and an outer sleeve assembly 302. The inner sleeve assembly 301 and the outer sleeve assembly 302 rotate relative to each other through a precision bearing to ensure smooth rotation. The rotating lead screw sleeve 3 is mounted on the inner side wall of the frame 1 and has an intermittent motion mechanism 5 installed at its end. The intermittent motion mechanism 5 can be driven by a first electric motor 6.

[0037] The rod body 201 has a clockwise spiral groove 202 and a counterclockwise spiral groove 203 on its surface, and the clockwise spiral groove 202 and the counterclockwise spiral groove 203 are connected end to end. The two spiral grooves have an isosceles trapezoidal cross section and are connected end to end through a smooth transition section to form a closed trajectory. This design allows the slider 3012 of the inner sleeve component 301 to move continuously along the trajectory and achieve uninterrupted reversal.

[0038] In another embodiment of the present invention, preferably, the intermittent motion mechanism 5 includes a driven grooved wheel 501 fixed to the end of the reciprocating screw 2 and an active dial 502 that can cooperate with the driven grooved wheel 501. The active dial 502 can be driven by a first electric motor 6. The intermittent motion mechanism 5 preferably uses a grooved wheel mechanism to realize the intermittent rotation of the reciprocating screw 2. The driven grooved wheel 501 is fixed to the end of the reciprocating screw 2 by a key connection. The active dial 502 is driven by the first electric motor 6. When the active dial 502 rotates at a constant speed, each time the pin is inserted into the groove of the driven grooved wheel 501, it can drive the driven grooved wheel 501 to rotate. Then the pin is disengaged from the groove, and the driven grooved wheel 501 remains stationary, thereby realizing the "rotation-stop-rotation" intermittent motion mode of the reciprocating screw 2.

[0039] The inner sleeve assembly 301 is rotatably connected to the outer wall of the rod 201. It cooperates with the clockwise spiral groove 202 and the counterclockwise spiral groove 203 on the outer wall of the rod 201 and can intermittently reciprocate along the outer wall of the rod 201. The inner sleeve assembly 301 includes an inner sleeve body 3011. A slider 3012 is fixed on the inner side wall of the inner sleeve body 3011. The slider 3012 can cooperate with the clockwise spiral groove 202 and the counterclockwise spiral groove 203. There are several sliders 3012, preferably three, all of which can be embedded and slidably cooperate with the clockwise spiral groove 202 and the counterclockwise spiral groove 203.

[0040] In another embodiment of the present invention, preferably, a plurality of sliding rods 3014 are installed on the inner side wall of the frame 1, and a plurality of sliding holes 3013 that can cooperate with the sliding rods 3014 are opened on the periphery of the inner sleeve 3011. The inner sleeve 3011 is slidably connected to the outer side wall of the sliding rods 3014 through the sliding holes 3013. Preferably, three sliding holes 3013 are opened on the periphery of the inner sleeve 3011, which are slidably cooperate with the three sliding rods 3014 installed on the inner side wall of the frame 1. The sliding rods 3014 are arranged parallel to the reciprocating screw 2, which effectively restricts the inner sleeve 3011 from rotating with the screw and ensures that it only moves in a straight line.

[0041] A semi-ring gear 3015 and a limiting arc strip 3016 are fixed in the middle of the outer side wall of the inner sleeve 3011. Limiting rings 3017 are fixed at both ends of the outer side wall of the inner sleeve 3011. The limiting arc strip 3016 in the middle of the outer side wall of the inner sleeve 3011 cooperates with the limiting block on the inner side of the outer sleeve 3021 to limit the maximum rotation angle of the outer sleeve 3021. The limiting rings 3017 at both ends axially constrain the outer sleeve 3021 to prevent it from moving axially along the inner sleeve 3011.

[0042] The outer sleeve assembly 302 is rotatably connected to the outer wall of the inner sleeve assembly 301 and can intermittently reciprocate along the arc of the outer wall of the inner sleeve assembly 301. The outer sleeve assembly 302 includes an outer sleeve body 3021 rotatably connected to the outer wall of the inner sleeve body 3011. A spur gear 3022 that can mesh with a semi-ring gear 3015 is rotatably connected to the inner wall of the outer sleeve body 3021. The spur gear 3022 can be driven by a second motor 3023. The inner wall of the outer sleeve body 3021 can be rotatably connected to the outer side of the inner sleeve body 3011 through a deep groove ball bearing. The spur gear 3022 is rotatably connected to the inner side of the outer sleeve body 3021 and meshes with the semi-ring gear 3015 fixed to the outer wall of the inner sleeve body 3011. The spur gear 3022 is driven by the second motor 3023 (preferably a servo motor that can rotate in both directions), so that the outer sleeve body 3021 can reciprocate around the axis of the inner sleeve body 3011 by ±180 degrees.

[0043] Camera 4 is installed on the outer wall of the outer casing assembly 302. Camera 4 is installed on the outer wall of the outer casing 3021 via an adjustable bracket. Preferably, camera 4 has infrared night vision function and can capture the operating status of rural power distribution network equipment (such as switch cabinets and cable joints) in real time. Its data is transmitted to the control module of the device via cable.

[0044] Working principle: This embodiment provides a high-efficiency energy-saving monitoring and protection device for power distribution networks. In use, the components work together to achieve a composite motion of "intermittent displacement + intermittent rotation" of the camera 4. The specific process is as follows:

[0045] Intermittent translation drive: The first motor 6 drives the active dial 502 to rotate. When the pin is inserted into the groove of the driven groove wheel 501, the driven groove wheel 501 drives the reciprocating screw 2 to rotate synchronously. At this time, the slider 3012 on the inner side of the inner sleeve 3011 slides along the clockwise spiral groove 202 (or counterclockwise spiral groove 203) of the rod 201. Because the slide rod 3014 restricts the rotation of the inner sleeve 3011, the inner sleeve 3011 translates in a straight line in a certain direction (the translation distance is proportional to the rotation angle of the screw). When the pin is disengaged from the groove of the driven groove wheel 501, the reciprocating screw 2 stops rotating, and the inner sleeve 3011 stops translating. At this time, the camera 4 is stationary and can clearly capture the equipment image of the current area.

[0046] Intermittent rotation drive: During the movement of the reciprocating screw 2, the second motor 3023 synchronously drives the spur gear 3022 to rotate. The spur gear 3022 meshes with the half-ring gear 3015, causing the outer sleeve 3021 to rotate around the axis of the inner sleeve 3011 (e.g., from 0° to 180°) until the limiting arc strip 3016 restricts its continued rotation. Then the second motor 3023 reverses, and the outer sleeve 3021 rotates in the opposite direction to reset (e.g., from 180° back to 0°), realizing the rotation of the camera 4 and expanding the shooting field of view.

[0047] It should be noted that in actual use, the intermittent movement gap between the rotating lead screw sleeve 3 and the outer sleeve assembly 302 needs to be adjusted so that when the rotating lead screw sleeve 3 moves horizontally, the outer sleeve assembly 302 rotates synchronously, and when the rotating lead screw sleeve 3 stops, the outer sleeve assembly 302 stops synchronously. Only in this way can the camera 4 rotate at the resting position, expand the shooting field of view, and capture clearer images.

[0048] Reciprocating motion is achieved as follows: When the reciprocating screw 2 rotates intermittently, the slider 3012 slides along the clockwise spiral groove 202 to the end and then naturally enters the counterclockwise spiral groove 203 through the transition section. At this time, the translation direction of the inner sleeve 3011 is reversed. With the intermittent pauses, the camera 4 finally achieves the "forward (rotation)-pause (shooting)-backward (rotation)-pause (shooting)" cycle along the straight path.

[0049] Through the above motion modes, a single camera 4 can cover a monitoring range that is many times greater than that of a traditional fixed camera 4, effectively reducing blind spots in monitoring, and avoiding motion blur because it shoots when the camera is stopped.

[0050] The intermittent motion mechanism 5 drives the reciprocating screw 2 to rotate intermittently, which in turn drives the rotating screw sleeve 3 to translate intermittently. The outer sleeve assembly 302 of the rotating screw sleeve 3 can reciprocate intermittently along the arc of the outer wall of the inner sleeve assembly 301, realizing the intermittent translation and rotation of a single camera 4 on the translation path. This reduces the blind spots of the camera 4, increases the field of view of the camera 4, and the intermittent motion allows the camera 4 to capture images when the displacement stops, resulting in clearer images.

[0051] Preferably, camera 4 is connected to the power distribution network dispatching platform or cloud management system, supporting remote viewing of real-time data, historical curves and equipment status on PC and mobile devices, realizing unattended operation, generating energy consumption reports and equipment health assessment reports based on big data analysis, providing decision-making basis for power grid planning and operation and maintenance, and can integrate existing temperature sensors, humidity sensors, smoke sensors, etc. to monitor the operating environment and status of power distribution equipment (such as switch cabinets and transformers), and prevent faults such as overheating and moisture (camera 4, first motor 6 and second motor 3023 are all existing products on the market and are all connected to external power supply and external switch).

[0052] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-efficiency energy-saving monitoring and protection device for power distribution networks, characterized in that, Includes rack (1); A reciprocating lead screw (2) is rotatably mounted on the inner side wall of the frame (1), and an intermittent motion mechanism (5) is installed at its end. The intermittent motion mechanism (5) can be driven by a first electric motor (6). The rod body (201) has a clockwise spiral groove (202) and a counterclockwise spiral groove (203) on its surface, and the clockwise spiral groove (202) and the counterclockwise spiral groove (203) are connected end to end; The inner sleeve assembly (301) is rotatably connected to the outer wall of the rod (201). It cooperates with the clockwise spiral groove (202) and counterclockwise spiral groove (203) on the outer wall of the rod (201) and can intermittently reciprocate along the outer wall of the rod (201) in a straight line. The outer sleeve assembly (302) is rotatably connected to the outer wall of the inner sleeve assembly (301) and can intermittently reciprocate along the arc of the outer wall of the inner sleeve assembly (301); The camera (4) is mounted on the outer wall of the outer casing assembly (302).

2. The high-efficiency energy-saving monitoring and protection device for power distribution networks according to claim 1, characterized in that, The reciprocating lead screw (2) is provided with a rotating lead screw sleeve (3) on its outer side wall. The rotating lead screw sleeve (3) includes an inner sleeve assembly (301) and an outer sleeve assembly (302).

3. The high-efficiency energy-saving monitoring and protection device for power distribution networks according to claim 2, characterized in that, The inner sleeve assembly (301) includes an inner sleeve body (3011), and a slider (3012) is fixed on the inner sidewall of the inner sleeve body (3011). The slider (3012) can cooperate with a clockwise spiral groove (202) and a counterclockwise spiral groove (203).

4. The high-efficiency energy-saving monitoring and protection device for power distribution networks according to claim 3, characterized in that, The inner wall of the frame (1) is equipped with several sliding rods (3014), and the inner sleeve (3011) is provided with several sliding holes (3013) that can cooperate with the sliding rods (3014). The inner sleeve (3011) is slidably connected to the outer wall of the sliding rods (3014) through the sliding holes (3013).

5. The high-efficiency energy-saving monitoring and protection device for power distribution networks according to claim 4, characterized in that, A semi-ring gear (3015) and a limiting arc strip (3016) are fixed in the middle of the outer side wall of the inner sleeve (3011), and limiting rings (3017) are fixed at both ends of the outer side wall of the inner sleeve (3011). The outer sleeve assembly (302) includes an outer sleeve (3021) rotatably connected to the outer wall of the inner sleeve (3011), and a spur gear (3022) rotatably connected to the inner wall of the outer sleeve (3021) and capable of meshing with a semi-ring gear (3015). The spur gear (3022) can be driven by a second electric motor (3023).

6. The high-efficiency energy-saving monitoring and protection device for power distribution networks according to claim 5, characterized in that, The intermittent motion mechanism (5) includes a driven groove wheel (501) fixed to the end of the reciprocating lead screw (2) and an active dial (502) that can cooperate with the driven groove wheel (501). The active dial (502) can be driven by a first electric motor (6).

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