An energy meter with a built-in high-current relay

Abstract

This invention provides an energy meter with a built-in high-current relay, relating to the field of energy meters. The energy meter with a built-in high-current relay includes: an energy meter, a wiring housing integrally formed on one side of the energy meter, multiple conductive plates disposed within the wiring housing, a current relay disposed within the energy meter, through-grooves on the inner walls of both sides of the wiring housing and the inner walls of both sides of the energy meter housing, a fixing mechanism for fixing wires sliding within the first groove, and a fourth groove perpendicularly communicating with the first groove on each inner wall of both sides of the wiring housing, a limiting mechanism for limiting the fixing mechanism within the fourth groove; and a clamping mechanism, including multiple wire-inlet guide sleeves, each of which penetrates the side wall of the wiring housing away from the energy meter. Through the cooperation of the clamping mechanism, the fixing mechanism, and the limiting mechanism, the visible insertion and fixing of the wire is achieved, which is convenient and quick.

Description

Technical Field

[0001] This invention relates to the field of electricity meter technology, specifically to an electricity meter with a built-in high-current relay. Background Technology

[0002] When installing existing three-phase four-wire energy meters, the connection and output terminals are usually open at the bottom. Workers insert the wire from the bottom up into the terminal. Because it's a blind spot, workers have to rely on manual feel to determine if the wire is inserted correctly, often requiring several attempts. Even after insertion, the wire length isn't immediately apparent. After insertion, the screw is tightened. To ensure stability, one hand is usually needed while the other tightens the screw. Some workers, for efficiency, bend the wire, insert it directly, and then release to tighten the screw. While this method allows for connection, the twisted wire or springback results in a small contact area, leading to high thermal resistance and overheating during operation. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an energy meter with a built-in high-current relay, thus solving the problem.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an energy meter with a built-in high-current relay, comprising:

[0005] An electric meter has a wiring housing integrally formed on one side. Multiple conductive plates are arranged inside the wiring housing. A through groove is provided on the inner walls of both sides of the wiring housing and the inner walls of both sides of the meter housing. A fixing mechanism for fixing wires slides in the groove. A groove is provided on the inner walls of both sides of the wiring housing, which is perpendicular to and communicates with the groove. A limiting mechanism for limiting the fixing mechanism is provided in the groove.

[0006] The clamping mechanism includes multiple inlet guide sleeves, each of which penetrates the side wall of the wiring housing away from the meter. Multiple mounting slots are circumferentially formed on the side wall of one end of the wiring housing of each inlet guide sleeve. Each mounting slot is rotatably connected to a rotating shaft by a torsion spring, and a clamping plate is mounted on each rotating shaft.

[0007] The fixing mechanism includes a movable plate, on both sides of which square sliding shafts are symmetrically fixed. The square sliding shafts slide within a sliding groove. The bottom of the movable plate is provided with multiple wiring portions corresponding to the inlet guide sleeves. Each wiring portion corresponds to the top of each conductive sheet. The movable plate is provided with multiple sets of screw holes. Each screw hole has two screws at its bottom for pressing the wiring portions. Each set of screw holes corresponds to the inlet guide sleeve.

[0008] Preferably, the top of the wiring housing is provided with a lever, and the end of the wiring housing is provided with a sliding groove five. A top rod is connected to the sliding groove five through a spring three. A current relay is provided inside the meter. The wiring terminal of the current relay extends into the wiring housing and is connected to the corresponding conductive plate. The ends of the clamping plates are all circumferentially inclined and distributed inside the inlet guide sleeve. Multiple rotating shafts are interconnected to form a circle through a flexible shaft. The flexible shaft passes through the side wall of the inlet guide sleeve. One of the rotating shafts is provided with a bevel gear one. The bevel gear one meshes with a bevel gear two. A drive gear is coaxially fixed to the rear side of the bevel gear two.

[0009] Preferably, the front side of the movable plate is provided with multiple racks, each rack corresponding to a drive gear, and both the bevel gear and the drive gear are rotatably connected to the side wall of the wiring housing.

[0010] Preferably, the middle part of the wiring portion is connected to the movable plate, the end of the wiring portion away from the screw is configured to be bent downwards elastically, and the wiring portion is made of copper elastically.

[0011] Preferably, the limiting mechanism includes two pop-out plates and two slide grooves three vertically opened on one side of the slide groove four. Each slide groove three is slidably provided with a limiting slider. The limiting slider is connected to the slide groove three by a spring two. One end of the limiting slider extends into the slide groove four and is set with a downward slope. The pop-out plates are installed at the bottom of the slide groove four by a spring one. Each side of the outer wall of the wiring housing is slidably provided with a lever. Both ends of the lever are connected to the limiting slider.

[0012] Working Principle: During visual cable insertion, the movable plate is pushed upwards from the first slide groove using a lever, exposing the conductive sheet inside the wiring housing. Then, the wire core is inserted into the inlet guide sleeve. As the wire enters the inlet guide sleeve, the wire's rubber surface presses against the retaining plate. One end of the retaining plate, through the torque of the pivot and torsion spring, remains firmly against the wire's rubber surface, thus securing the wire within the inlet guide sleeve. The operator can see the wire core positioned above the conductive sheet. The operator can then release their grip; the wire is secured to the conductive sheet without manual intervention. To fix the wire core, the movable plate is moved using the lever, pressing against the top rod and causing it to enter the fifth slide groove. Pressing the movable plate then causes the square sliding shaft to slide into the fourth slide groove. The square sliding shaft presses against the limiting slider, moving it below the fourth slide groove. The limiting slider is then reset by the second spring, achieving the limiting position of the square sliding shaft. At this point, the multiple wiring points at the bottom of the movable plate are aligned directly above the conductive sheet, with the wiring points folded. One end is tightly attached to the top of the conductive sheet. At this time, the operator can tighten the screw to squeeze the wiring part, which is close to the conductive sheet, thus fixing the wire core on the conductive sheet. This visible wiring and core fixing setting allows the operator to directly insert the wire into the wiring socket in one go and also to directly see the length of the inserted core. After successful insertion, the clamping mechanism fixes the wire body, and then the fixing mechanism positions the wiring part and the wire. Tightening the screw directly fixes the core. This operation achieves high wiring efficiency and standard wiring position, avoiding the situation where the small wiring contact surface leads to high thermal resistance. When disassembly and maintenance are required, the lever is moved, which moves the corresponding limit slider away. Spring 1 ejects the square sliding shaft from the slide groove 4 through the pop-out plate. After the square sliding shaft enters the slide groove 1, the top rod is pushed by spring 3, causing the moving plate to slide inside the meter inside the slide groove 1, making the wiring inside the wiring housing visible. The above operation is then repeated to fix the wiring.

[0013] This invention provides an energy meter with a built-in high-current relay. It has the following advantages:

[0014] In this invention, the wire enters the inlet guide sleeve, and the wire's rubber sheath presses against the retaining plate. One end of the retaining plate, through the torque of the rotating shaft and torsion spring, remains firmly against the rubber sheath of the wire. At this point, the wire is held and fixed inside the inlet guide sleeve. The operator can see that the wire core is positioned on the conductive plate. Afterward, the operator can release their hand, and the wire is fixed to the conductive plate without manual support. This operation makes the wiring length visible, eliminating the need for the operator to feel whether the wire core is inserted into the meter's terminal. Then, the fixing mechanism resets, fixing the wire core to the connector and the conductive plate. This visible insertion and wire core fixing setting allows the operator to visually insert the wire into the connector in one go and clearly see the insertion length of the wire core, ensuring success on the first attempt. Afterward, the clamping mechanism fixes the wire, and the fixing mechanism positions the connector and the wire. Finally, the screws are tightened to fix the wire core. This operation achieves high wiring efficiency, standard wiring positions, and avoids situations where a small wiring contact area leads to high thermal resistance. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is a side sectional view of the wiring portion of the present invention;

[0017] Figure 3 This is a side sectional view of the wiring section of the present invention after the wires have been installed.

[0018] Figure 4 This is a front view of the clamping mechanism of the present invention;

[0019] Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle;

[0020] Figure 6 For the present invention Figure 2 Enlarged view of point B in the middle;

[0021] Figure 7 For the present invention Figure 2 Enlarged view of point C in the middle;

[0022] Figure 8 This is a partial perspective view of the movable plate of the fixing mechanism of the present invention;

[0023] Figure 9 This is a structural diagram of the limiting mechanism of the present invention;

[0024] Figure 10 This is a three-dimensional structural diagram showing the installation of the lever and the limiting slider of the present invention.

[0025] The components are as follows: 1. Meter; 2. Wiring housing; 3. Lever; 4. Inlet guide sleeve; 5. Paddle; 6. Screw hole; 7. Moving plate; 8. Holding plate; 9. Conductive plate; 10. Wiring part; 11. Square sliding shaft; 12. Slide groove one; 13. Clamping mechanism; 14. Spring one; 15. Screw; 16. Pop-out plate; 17. Limiting slider; 18. Spring two; 19. Slide groove three; 20. Slide groove four; 21. Rotating shaft; 22. Flexible shaft; 23. Bevel gear one; 24. Torsion spring; 25. Bevel gear two; 26. Drive gear; 27. Rack; 28. Top rod; 29. ​​Spring three; 30. Slide groove five; 31. Mounting groove; 32. Limiting mechanism; 33. Fixing mechanism. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example:

[0028] Reference Figures 1-10 As shown, an embodiment of the present invention provides an energy meter with a built-in high-current relay, comprising:

[0029] The meter 1 has a wiring housing 2 integrally formed on one side. Multiple conductive plates 9 are arranged inside the wiring housing 2. A current relay is arranged inside the meter 1. The wiring terminal of the current relay extends into the wiring housing 2 and is connected to the corresponding conductive plate 9. The inner walls of both sides of the wiring housing 2 and the inner walls of both sides of the meter 1 housing are provided with through grooves 12. A fixing mechanism 33 for fixing wires slides in the grooves 12. The inner walls of both sides of the wiring housing 2 are provided with grooves 4 20 that are perpendicular to and connected to the grooves 12. A limiting mechanism 32 for limiting the fixing mechanism 33 is arranged in the grooves 4 20.

[0030] The wiring housing 2 is where the wiring terminals of the meter 1 are set. The meter is a three-phase four-wire energy meter. From left to right, 1, 4, and 7 are connected to the incoming line, 3, 6, and 9 are connected to the outgoing line, and 10 and 11 are connected to the neutral line. The current relay is connected in series with the corresponding incoming and outgoing lines. The conductive plate 9 is connected to the incoming and outgoing lines and is connected in series with the input and output terminals of the current relay. The fixing mechanism 33 is used to fix the wire core of the conductor. The clamping mechanism 13 is used for visual positioning and clamping of the wire core. The limiting mechanism 32 is used to fix the fixing mechanism 33 or release the fixing mechanism.

[0031] The clamping mechanism 13 includes multiple inlet guide sleeves 4. Each inlet guide sleeve 4 penetrates the side wall of the terminal housing 2 away from the meter 1. Multiple mounting slots 31 are circumferentially formed on the side wall of one end of each inlet guide sleeve 4 penetrating the terminal housing 2. A rotating shaft 21 is rotatably connected to each mounting slot 31 via a torsion spring 24. Each rotating shaft 21 is equipped with a retaining plate 8, the ends of which are circumferentially inclined and distributed inside the inlet guide sleeve 4. The multiple rotating shafts 21 are interconnected to form a circle via flexible shafts 22 penetrating the side wall of the inlet guide sleeve 4. One rotating shaft 21 is equipped with a bevel gear 23, which meshes with a bevel gear 25. A drive gear 26 is coaxially fixed to the rear side of the bevel gear 25. When inserting the wire, a lever is used to... 5. Push the movable plate 7 upward from the slide groove 12, so that the conductive sheet 9 is exposed inside the wiring housing 2. Then, insert the wire core into the inlet guide sleeve 4. When the wire enters the inlet guide sleeve 4, the wire rubber squeezes the retaining plate 8. One end of the retaining plate 8 is always in close contact with the wire rubber through the torque of the rotating shaft 21 and the torsion spring 24. At this time, the wire is held and fixed in the inlet guide sleeve 4. The operator can see that the wire core is set on the conductive sheet 9. Then the operator can release his hand. The wire can be fixed on the conductive sheet 9 without hand support. Then the wire core is fixed. The visible wire core insertion and fixing means that the operator does not need to hold the screw with one hand when fixing the wire, and does not need to blindly insert the wire core based on feel, which would lead to uncontrollable wire core fixing length.

[0032] Both bevel gear 25 and drive gear 26 are rotatably connected to the side wall of the terminal housing 2. After the moving plate 7 enters the slide groove 20 of the terminal housing 2, the rack 27 drives the drive gear 26 downward. At this time, the drive gear 26 causes bevel gear 25 to rotate, which in turn causes bevel gear 23 to drive the rotating shaft 21 to rotate. The rotation of the rotating shaft 21 causes the clamping plate 8 to be released from the rubber of the wire. Since the wiring part 10 and the conductive plate 9 have fixed the wire core, there is no need to clamp and limit it again after the wire is installed.

[0033] The fixing mechanism 33 includes a movable plate 7, on both sides of which square sliding shafts 11 are symmetrically fixed. The square sliding shafts 11 slide within the sliding groove 12. Multiple wiring portions 10, each corresponding to a wire guide sleeve 4, are provided at the bottom of the movable plate 7. Each wiring portion 10 corresponds directly above each conductive sheet 9. Multiple sets of screw holes 6 are provided on the movable plate 7. Each screw hole 6 has two screws at its bottom for pressing the wiring portion 10. Each set of screw holes 6 corresponds to a wire guide sleeve 4. A lever 5 is provided at the top of the wiring housing 2, and a sliding groove 30 is provided at the end of the wiring housing 2. A push rod 28 is connected to the sliding groove 30 via a spring 29. The movable plate 7 is moved by the lever 5, causing the movable plate 7 to press the push rod 28, thus advancing the push rod 28. When the square sliding shaft 11 is slid into the slide groove 30, the movable plate 7 is pressed to make it slide into the slide groove 20. The square sliding shaft 11 presses the limiting slider 17 into the lower part of the slide groove 20. Then, the limiting slider 17 is pressed and reset by the spring 18, thus limiting the square sliding shaft 11. At this time, the multiple wiring parts 10 at the bottom of the movable plate 7 are all directly above the conductive sheet 9. One end of the folded wire of the wiring part 10 is tightly attached to the top of the conductive sheet 9. At this time, the operator can press the wiring part 10 by tightening the screw 15. The wiring part 10 is close to the conductive sheet 9, which fixes the wire core on the conductive sheet 9. When the movable plate 7 moves down, the wiring part 10 has already cooperated with the conductive sheet 9 to press the wire core. Therefore, when the clamping plate 8 is released, the wire will not fall or move.

[0034] Multiple racks 27 are provided on the front side of the movable plate 7. Each rack 27 corresponds to a drive gear 26. When the drive gear 26 moves downward, it drives the rack 27.

[0035] The middle part of the wiring part 10 is connected to the movable plate 7. The end of the wiring part 10 away from the screw 15 is designed to be bent downwards and is elastic. The wiring part 10 is made of copper and is elastic. This design allows for a wide contact area and a moderate contact position of the wire core, preventing large thermal resistance and low heat generation due to small contact area.

[0036] The limiting mechanism 32 includes two pop-out plates 16 and two slide grooves 19 vertically opened on one side of the slide groove 20. Each slide groove 19 has a limiting slider 17 slidably mounted within it. The limiting slider 17 is connected to the slide groove 19 by a spring 18. One end of the limiting slider 17 extends into the slide groove 20 and is inclined downwards. The pop-out plates 16 are installed at the bottom of the slide groove 20 by a spring 14. Each side of the wiring housing 2 has a lever 3 slidably mounted on its outer wall. Both ends of the lever 3 are connected to the limiting slider 17. This visible insertion and wire core fixing design allows operators to directly insert the wire into the wiring socket in one go and visually see the length of the inserted wire core. After successful insertion, the clamping machine... The wire body is fixed by the structure 13, and then the wiring part 10 and the wire are positioned by the fixing mechanism 33. The screw is tightened directly to fix the wire core. This operation achieves high wiring efficiency and standard wiring position, and will not cause the situation of small wiring contact surface leading to high thermal resistance. When disassembly and maintenance are required, the lever 3 is moved. The lever 3 drives the corresponding limit slider 17 to move away. The spring 14 ejects the square sliding shaft 11 from the slide groove 20 through the pop-out plate 16. After the square sliding shaft 11 enters the slide groove 12, the top rod 28 is pushed by the spring 3 29, so that the moving plate 7 slides inside the slide groove 12 into the meter 1, realizing the visibility of the wiring inside the wiring shell 2. Then the above operation is repeated to fix the wiring of the wire body.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy meter with a built-in high-current relay, characterized in that: include: An electric meter has a wiring housing integrally formed on one side. Multiple conductive plates are arranged inside the wiring housing. A through groove is provided on the inner walls of both sides of the wiring housing and the inner walls of both sides of the meter housing. A fixing mechanism for fixing wires slides in the groove. A groove is provided on the inner walls of both sides of the wiring housing, which is perpendicular to and communicates with the groove. A limiting mechanism for limiting the fixing mechanism is provided in the groove. The clamping mechanism includes multiple inlet guide sleeves, each of which penetrates the side wall of the wiring housing away from the meter. Multiple mounting slots are circumferentially formed on the side wall of one end of the wiring housing of each inlet guide sleeve. Each mounting slot is rotatably connected to a rotating shaft by a torsion spring, and a clamping plate is mounted on each rotating shaft. The fixing mechanism includes a movable plate, on both sides of which square sliding shafts are symmetrically fixed. The square sliding shafts slide within a sliding groove. The bottom of the movable plate is provided with multiple wiring portions corresponding to the inlet guide sleeves. Each wiring portion corresponds to the top of each conductive sheet. The movable plate is provided with multiple sets of screw holes. Each screw hole has two screws at its bottom for pressing the wiring portions. Each set of screw holes corresponds to the inlet guide sleeve.

2. The energy meter with a built-in high-current relay according to claim 1, characterized in that: The top of the wiring housing is provided with a lever, and the end of the wiring housing is provided with a sliding groove five. A top rod is connected to the sliding groove five through a spring three. A current relay is provided inside the meter. The wiring terminal of the current relay extends into the wiring housing and is connected to the corresponding conductive plate. The ends of the clamping plates are all circumferentially inclined and distributed inside the inlet guide sleeve. Multiple rotating shafts are interconnected to form a circle through a flexible shaft. The flexible shaft passes through the side wall of the inlet guide sleeve. One of the rotating shafts is provided with a bevel gear one. The bevel gear one meshes with a bevel gear two. A drive gear is coaxially fixed to the rear side of the bevel gear two.

3. The energy meter with a built-in high-current relay according to claim 2, characterized in that: Multiple racks are provided on the front side of the movable plate, and each rack corresponds to a drive gear. Both the bevel gear and the drive gear are rotatably connected to the side wall of the wiring housing.

4. The energy meter with a built-in high-current relay according to claim 1, characterized in that: The middle part of the wiring part is connected to the movable plate, and the end of the wiring part away from the screw is designed to be bent downwards and is elastic. The wiring part is made of copper and is elastic.

5. An energy meter with a built-in high-current relay according to claim 1, characterized in that: The limiting mechanism includes two pop-out plates and two slide grooves three vertically opened on one side of slide groove four. Each slide groove three is slidably equipped with a limiting slider. The limiting slider is connected to the slide groove three by a spring two. One end of the limiting slider extends into the slide groove four and is set with a downward slope. The pop-out plates are installed at the bottom of slide groove four by a spring one. Each side of the outer wall of the wiring housing is slidably equipped with a lever. Both ends of the lever are connected to the limiting slider.

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