Automatic fault diagnosis device for electric power meter

Abstract

The utility model provides an automatic fault diagnosis device for an electric power meter. The automatic fault diagnosis device for the electric power meter comprises a shell, a back plate and a front cover are arranged on the two sides of the shell respectively, limiting plates are arranged on the surfaces of the sides, relatively close to each other, of the front cover and the back plate in a bilateral symmetry mode, limiting holes are formed in the surfaces of the limiting plates, one ends of the limiting plates extend into the shell, and the other ends of the limiting plates extend into the shell. Vertical shafts are rotationally connected to the edge of one side of the shell in a front-back symmetry mode, a worm is fixedly connected to the bottom of each vertical shaft, a worm wheel is connected to one side of each worm, a transverse shaft is inserted into the surface of each worm wheel, and a rack is fixedly connected with a sliding block through a connecting rod. The automatic fault diagnosis device for the electric power meter has the advantages that the work of the electric power meter can be conveniently monitored, the good shock absorption and shock absorption functions are achieved, and the electric power meter shell can be conveniently and integrally disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the field of electric power meters, in particular to an automatic fault diagnosis device for electric power meters. Background Art

[0002] Power meters are power measurement and control devices that provide solutions for power parameter measurement, power quality monitoring and analysis, and electrical equipment control. As an advanced intelligent and digital front-end acquisition component of the power grid, power meters have been widely used in various control systems, SCADA systems, energy management systems, substation automation, community power monitoring, industrial automation, smart buildings, smart distribution cabinets, switch cabinets and other equipment.

[0003] However, there are still some shortcomings in the existing structure. First, if a problem occurs during the operation of the existing power meter device, the existing mechanism cannot detect it and inform the user in time, which leads to greater problems. Secondly, the shell of the current power meter device is mostly fixed with screws. When used in an external environment, the screws will rust, which will make it inconvenient to disassemble and assemble, and the screw structure is prone to stripping. In addition, the existing device lacks good shock-absorbing and vibration-proof functions.

[0004] Therefore, it is necessary to provide a new automatic fault diagnosis device for electric power meters to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide an automatic fault diagnosis device for an electric power meter, which is convenient for monitoring the operation of the electric power meter, has good shock absorption and vibration absorbing functions, and is convenient for overall disassembly and assembly of the electric power meter housing.

[0006] In order to solve the above technical problems, the utility model provides an automatic fault diagnosis device for an electric power meter, comprising: a shell, a back plate and a front cover are respectively arranged on both sides of the shell, and a limit plate is symmetrically arranged on the surface of the side relatively close to the back plate, and a limit hole is provided on the surface of the limit plate, and one end of the limit plate extends to the interior of the shell, and a vertical axis is connected to the edge of one side of the shell for symmetrical rotation front and back, and a worm is fixedly connected to the bottom of the vertical axis, and a worm is connected to a worm wheel at one side of the worm, and a horizontal axis is inserted on the surface of the worm wheel, and a gear is fixedly connected to one end of the horizontal axis, and the gear is located inside the shell and meshed with a rack, and the rack is fixedly connected to a sliding block through a connecting rod, and the top of the sliding block Limiting columns are arranged vertically, and sliding grooves are provided on the inner walls on both sides of the shell. The sliding block is slidably connected to the sliding groove on one side, and a plurality of evenly distributed heat dissipation grooves are provided on the surface of the back plate. The inner walls of the back plate on both sides of the heat dissipation grooves are threadedly connected with vertical frames through bolts, and a plurality of longitudinally arranged mounting grooves are provided inside the vertical frames. A heat dissipation copper sheet is arranged inside the mounting grooves, and the side walls of the vertical frames located on the lower sides of the mounting grooves are rotatably connected with threaded rods through connecting blocks. The two side walls of the shell are rotatably connected with spring rods symmetrically up and down, and a mounting plate is rotatably connected between two adjacent spring rods. A temperature sensor and a leakage short-circuit monitoring device are respectively arranged inside the shell, and a positioning plate is fixedly connected to the surface of one side of the back plate and the front cover.

[0007] As a further solution of the utility model, ear plates are fixedly connected to both side wall positions of the two mounting plates, and the internal threads of the ear plates are connected to fastening bolts.

[0008] Through the above technical solution, the user can install the device to the corresponding position of the use location through the ear plates and fastening bolts on the two mounting plates. During use, since the mounting plates are connected to the shell through multiple sets of spring rods, they have good shock absorption and vibration isolation effects, avoiding damage to the internal electrical appliances during movement.

[0009] As a further solution of the utility model, a display is installed inside the front cover, and operation buttons are arranged on the front wall surface of the front cover.

[0010] Through the above technical solution, the corresponding power parameters can be understood through the display and operation buttons, and the power quality can be monitored, etc., which is convenient for users to operate.

[0011] As a further solution of the present invention, a control module is installed inside the shell, and the control module is electrically connected to the temperature sensor and the leakage short circuit monitoring device.

[0012] Through the above technical solution, during the operation of the power meter, if the internal electrical appliances fail due to overheating or other problems, the internal monitoring device can sense it. If the temperature is too high and the circuit is burned, the temperature sensor will sense the change and use the control module to transmit the information to the user, while the leakage short circuit monitoring module will monitor in real time whether there are corresponding problems with the internal electrical appliances.

[0013] As a further solution of the utility model, the tops of the two vertical shafts are fixedly connected with knobs, the knobs are located outside the shell, and the limiting columns match the limiting holes.

[0014] Through the above technical solution, the two knobs on the shell of the device are respectively used to realize the installation and removal of the front cover and the back plate. In the specific operation process, the knob on one side is rotated first, and the knob transfers kinetic energy to the worm wheel meshing with the worm inside. The worm wheel drives the gear on one side to rotate through the horizontal axis, and the rack meshing with the gear drives the limit rod to extend into the interior of the limit hole, thereby realizing the overall installation of the power meter shell, and using the self-locking characteristics of the worm wheel and the worm to keep the fixed structure stable.

[0015] As a further solution of the utility model, the top and bottom of the threaded rod are respectively fixedly connected with a clamping plate and a handle.

[0016] Through the above technical solution, when installing the heat sink copper sheet, first use the knob on one side to remove the back plate from the shell, then install the heat sink copper sheet into the installation groove, and then rotate the threaded rod to allow the clamping plate to press the heat sink copper sheet into the vertical frame.

[0017] Compared with the related art, the automatic fault diagnosis device for electric power meter provided by the utility model has the following beneficial effects:

[0018] 1. In the utility model, the user can install the device to the corresponding position of the use location through the ear plates and fastening bolts on the two mounting plates. During use, since the mounting plate is connected to the shell through multiple sets of spring rods, it has a good shock absorption and shock absorption effect, avoiding damage to the internal electrical appliances during movement. During the operation of the power meter, if the internal electrical appliances fail due to overheating or other problems, the internal monitoring device can sense it. If the temperature is too high and the circuit is burned, the temperature sensor will sense the change and use the control module to transmit the information to the user, and the leakage short circuit monitoring module will monitor whether there are corresponding problems in the internal electrical appliances in real time;

[0019] 2. In the utility model, the two knobs on the housing of the device are respectively used to realize the installation and removal of the front cover and the back plate. In the specific operation process, first rotate the knob on one side, and the knob transfers the kinetic energy to the worm wheel meshing with the worm inside. The worm wheel drives the gear on one side to rotate through the horizontal axis, and the rack meshing with the gear drives the limit rod to extend into the interior of the limit hole, thereby realizing the overall installation of the power meter housing, and using the self-locking characteristics of the worm wheel and the worm to keep the fixed structure stable. When installing the heat sink copper sheet, first use the knob on one side to remove the back plate from the housing, then install the heat sink copper sheet into the installation groove, and then rotate the threaded rod to allow the clamping plate to press the heat sink copper sheet in the vertical frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of an automatic fault diagnosis device for an electric power meter in the utility model;

[0022] Figure 2 It is a schematic diagram of the first partial structure disassembly of an automatic fault diagnosis device for an electric power meter in the utility model;

[0023] Figure 3 It is a second partial structural schematic diagram of an automatic fault diagnosis device for an electric power meter in the utility model;

[0024] Figure 4 It is a schematic diagram of the disassembly of the third partial structure of the automatic fault diagnosis device for electric power meters in the utility model;

[0025] Figure 5 The utility model is a schematic diagram of the structure of position A of an automatic fault diagnosis device for an electric power meter.

[0026] Description of main symbols:

[0027] 1. Shell; 2. Front cover; 3. Spring rod; 4. Mounting plate; 5. Operation button; 6. Ear plate; 7. Knob; 8. Limit plate; 9. Display; 10. Control module; 11. Leakage short circuit monitoring module; 12. Back plate; 13. Limit hole; 14. Mounting slot; 15. Vertical frame; 16. Heat dissipation copper sheet; 17. Heat dissipation slot; 18. Pressing plate; 19. Threaded rod; 20. Limit column; 21. Worm gear; 22. Gear; 23. Rack; 24. Worm; 25. Sliding block; 26. Slide slot; 27. Positioning plate; 28. Temperature sensor. DETAILED DESCRIPTION

[0028] Please combine Figures 1 to 5 ,in, Figure 1It is a schematic diagram of the overall structure of an automatic fault diagnosis device for an electric power meter in the utility model; Figure 2 It is a schematic diagram of the first partial structure disassembly of an automatic fault diagnosis device for an electric power meter in the utility model; Figure 3 It is a second partial structural schematic diagram of an automatic fault diagnosis device for an electric power meter in the utility model; Figure 4 It is a schematic diagram of the disassembly of the third partial structure of the automatic fault diagnosis device for electric power meters in the utility model; Figure 5 The figure is a schematic diagram of the structure of the automatic fault diagnosis device for electric power meters in the utility model. The automatic fault diagnosis device for electric power meters comprises: a shell 1, a back plate 12 and a front cover 2 are respectively arranged on both sides of the shell 1, and a limit plate 8 is symmetrically arranged on the surface of the side of the front cover 2 that is relatively close to the back plate 12, and a limit hole 13 is provided on the surface of the limit plate 8, and one end of the limit plate 8 extends to the inside of the shell 1, and a vertical axis is connected to the edge of one side of the shell 1 so as to rotate symmetrically front and back, and a worm 24 is fixedly connected to the bottom of the vertical axis, and a worm wheel 21 is connected to one side of the worm 24, and a horizontal axis is inserted on the surface of the worm wheel 21, and a gear 22 is fixedly connected to one end of the horizontal axis, and the gear 22 is located inside the shell 1 and meshed with a rack 23, and the rack 23 is fixedly connected to a sliding block 25 through a connecting rod, and a limit column 20 is vertically arranged on the top of the sliding block 25, and both sides of the shell 1 The inner walls are provided with sliding grooves 26, and the sliding block 25 is slidably connected to the sliding groove 26 on one side. The surface of the back plate 12 is provided with a plurality of evenly distributed heat dissipation grooves 17. The inner walls of the back plate 12 on both sides of the heat dissipation grooves 17 are threadedly connected with the vertical frames 15 through bolts. The interior of the vertical frames 15 is provided with a plurality of longitudinally arranged mounting grooves 14, and the interior of the mounting grooves 14 is provided with heat dissipation copper sheets 16. The side walls of the vertical frames 15 located at the lower side of the mounting grooves 14 are rotatably connected with threaded rods 19 through connecting blocks. The two side walls of the shell 1 are rotatably connected with spring rods 3 at upper and lower symmetrical positions, and the mounting plates 4 are rotatably connected between the two adjacent spring rods 3. The interior of the shell 1 is respectively provided with temperature sensors 28 and leakage short-circuit monitoring devices, and the back plate 12 and one side surface of the front cover 2 are fixedly connected with positioning plates 27.

[0029] Ear plates 6 are fixedly connected to both side walls of the two mounting plates 4 , and the inner threads of the ear plates 6 are connected with fastening bolts.

[0030] The user can install the device to the corresponding position of the use location through the ear plates 6 and fastening bolts on the two mounting plates 4. During use, since the mounting plates 4 are connected to the housing 1 through multiple sets of spring rods 3, they have good shock absorption and vibration isolation effects, preventing the internal electrical appliances from being damaged during movement.

[0031] A display 9 is installed inside the front cover 2 , and operation buttons 5 are provided on the front wall surface of the front cover 2 .

[0032] The corresponding power parameters can be learned through the display 9 and the operation buttons 5, and the power quality can be monitored, etc., which is convenient for the user to operate.

[0033] A control module 10 is installed inside the housing 1 , and the control module 10 is electrically connected to the temperature sensor 28 and the leakage short circuit monitoring device.

[0034] During the operation of the power meter, if the internal electrical appliances malfunction due to overheating or other problems, the internal monitoring device can sense it. If the temperature is too high and the circuit is burned, the temperature sensor 28 will sense the change and use the control module 10 to transmit the information to the user, and the leakage short circuit monitoring module 11 will monitor in real time whether there are corresponding problems with the internal electrical appliances.

[0035] The tops of the two vertical shafts are fixedly connected with knobs 7 , which are located outside the housing 1 , and the limiting columns 20 match the limiting holes 13 .

[0036] The two knobs 7 on the housing 1 of the device are respectively used to realize the installation and removal of the front cover 2 and the back plate 12. In the specific operation process, the knob 7 on one side is rotated first, and the knob 7 transmits kinetic energy to the worm wheel 21 meshing with the worm 24 inside. The worm wheel 21 drives the gear 22 on one side to rotate through the horizontal axis, and the rack 23 meshing with the gear 22 drives the limit rod to extend into the limit hole 13, thereby realizing the overall installation of the power meter housing 1, and utilizing the self-locking characteristics of the worm wheel 21 and the worm 24 to keep the fixed structure stable.

[0037] The top and bottom of the threaded rod 19 are fixedly connected with a clamping plate 18 and a handle respectively.

[0038] When installing the heat sink 16 , first use the knob 7 on one side to remove the back plate 12 from the housing 1 , then install the heat sink 16 into the installation groove 14 , and then rotate the threaded rod 19 to allow the clamping plate 18 to clamp the heat sink 16 in the vertical frame 15 .

[0039] The working principle of the automatic fault diagnosis device for electric power meters provided by the utility model is as follows:

[0040] Step 1: The user can install the device to the corresponding position of the use location through the ear plates 6 and the fastening bolts on the two mounting plates 4. During use, since the mounting plate 4 is connected to the housing 1 through multiple sets of spring rods 3, it has a good shock absorption and vibration absorbing effect, which prevents the internal electrical appliances from being damaged during movement. During the operation of the power meter, if the internal electrical appliances fail due to overheating or other problems, the internal monitoring device can sense it. If the temperature is too high and the circuit is burned, the temperature sensor 28 will sense the change and use the control module 10 to transmit the information to the user, and the leakage short circuit monitoring module 11 will monitor whether there are corresponding problems in the internal electrical appliances in real time;

[0041] The second step: the two knobs 7 on the housing 1 of the device are respectively used to realize the installation and removal of the front cover 2 and the back plate 12. In the specific operation process, first rotate the knob 7 on one side, and the knob 7 transfers the kinetic energy to the worm wheel 21 meshing with the worm 24 inside. The worm wheel 21 drives the gear 22 on one side to rotate through the horizontal axis, and the rack 23 meshing with the gear 22 drives the limit rod to extend into the inside of the limit hole 13, thereby realizing the overall installation of the power meter housing 1, and using the self-locking characteristics of the worm wheel 21 and the worm 24 to keep the fixed structure stable. When installing the heat dissipation copper sheet 16, first use the knob 7 on one side to remove the back plate 12 from the housing 1, and then install the heat dissipation copper sheet 16 into the installation groove 14, and then rotate the threaded rod 19 to allow the clamping plate 18 to press the heat dissipation copper sheet 16 into the vertical frame 15.

[0042] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0043] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0044] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. An automatic fault diagnosis device for an electric power meter, characterized in that: The invention comprises a shell, wherein a back plate and a front cover are respectively arranged on two sides of the shell, and a limit plate is symmetrically arranged on the surface of one side of the front cover and the back plate, and a limit hole is arranged on the surface of the limit plate, and one end of the limit plate extends to the inside of the shell, and a vertical shaft is connected to one side edge of the shell for symmetrical rotation front and back, a worm is fixedly connected to the bottom of the vertical shaft, a worm is connected to one side of the worm, a horizontal shaft is inserted on the surface of the worm wheel, and a gear is fixedly connected to one end of the horizontal shaft, the gear is located inside the shell and meshed with a rack, the rack is fixedly connected to a sliding block through a connecting rod, and a limit column is vertically arranged on the top of the sliding block, and the inside of the two sides of the shell The walls are provided with sliding grooves, the sliding block is slidably connected to the sliding groove on one side, a plurality of evenly distributed heat dissipation grooves are provided on the surface of the back plate, the inner walls of the back plate located on both sides of the heat dissipation grooves are threadedly connected with vertical frames through bolts, a plurality of longitudinally arranged mounting grooves are provided inside the vertical frames, a heat dissipation copper sheet is arranged inside the mounting groove, the side walls of the vertical frames located on the lower side of the mounting grooves are rotatably connected with threaded rods through connecting blocks, the two side walls of the shell are symmetrically rotatably connected with spring rods, a mounting plate is rotatably connected between two adjacent spring rods, a temperature sensor and a leakage short-circuit monitoring device are respectively arranged inside the shell, and a positioning plate is fixedly connected to the surface of one side of the back plate and the front cover.

2. The automatic fault diagnosis device for electric power meters according to claim 1, characterized in that: Ear plates are fixedly connected to both side wall positions of the two mounting plates, and the inner threads of the ear plates are connected with fastening bolts.

3. The automatic fault diagnosis device for electric power meters according to claim 1, characterized in that: A display is installed inside the front cover, and operation buttons are arranged on the front wall surface of the front cover.

4. The automatic fault diagnosis device for electric power meters according to claim 1, characterized in that: A control module is installed inside the shell, and the control module is electrically connected to the temperature sensor and the leakage short circuit monitoring device.

5. The automatic fault diagnosis device for electric power meters according to claim 1, characterized in that: The tops of the two vertical shafts are fixedly connected with knobs, the knobs are located outside the shell, and the limiting columns match the limiting holes.

6. The automatic fault diagnosis device for electric power meters according to claim 1, characterized in that: The top and bottom of the threaded rod are respectively fixedly connected with a pressing plate and a handle.

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