Single-phase electronic electric energy meter

Abstract

The application discloses a single-phase electronic electric energy meter and relates to the technical field of electric energy meters.The single-phase electronic electric energy meter is provided with a wiring rack, when wiring work needs to be performed on a plurality of wire bodies, the wire bodies can be inserted into corresponding rectangular assembly racks, then the arc-shaped locking pieces are moved downward by pressing the locking slide rods, the wire bodies are locked with the wiring copper sheets, the locking of the wire bodies is completed through the cooperation of the concave limiting racks and the locking racks, the locking work on the end portions of the wire bodies is cancelled by pulling the unlocking end heads upward through the cooperation of the slide rods and other components, the wire bodies and the wiring copper sheets can be conveniently replaced, wiring effect can be ensured, wiring and wire removal work can be conveniently performed on wire bodies of different sizes, and the assembly convenience and the subsequent maintenance convenience of the equipment are improved.

Description

Technical Field

[0001] This invention relates to the field of electricity meter technology, specifically to a single-phase electronic electricity meter. Background Technology

[0002] An electronic energy meter is a physical device that uses integrated circuits to collect voltage and current signals in real time, converts them into pulse signals proportional to electrical energy, and displays the measurement results via a counter or digital display. It is widely used in the field of electricity metering. Referring to Chinese patent publication number "CN115684684A" entitled "A Single-Phase Electronic Energy Meter," this patent points out that current energy meters require connecting the neutral and live wires to the meter's connectors and securing the wires with bolts. However, the direction of rotation is inconvenient when tightening the bolts, and to ensure a secure connection, the wires need to be bent before tightening. Therefore, the bend must be in the same direction as the bolt tightening; otherwise, the wires may loosen and detach from the connector. This method of tightening the wires rarely causes problems for experienced workers, but it can be inconvenient for novices or users who install it themselves. Furthermore, the aforementioned devices still suffer from poor ease of assembly and sealing of the meter's wiring terminals. To address these issues, we propose a single-phase electronic energy meter. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a single-phase electronic energy meter, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a single-phase electronic energy meter, comprising a body, a counter and a circuit board respectively fixedly installed inside the body, a plurality of wiring terminals fixedly installed inside the body, and a wiring frame fixedly installed at the end of the body, wherein the ends of the plurality of wiring terminals extend into the wiring frame for connecting the wire body to the corresponding wiring terminal. The connector frame has a carrier base fixedly installed inside. The carrier base has multiple copper connecting pieces fixedly installed inside. The copper connecting pieces are electrically connected to their corresponding terminals. Each terminal has a rectangular mounting frame on its outer side. The rectangular mounting frame is fixedly installed on the top of the carrier base. The rectangular mounting frame has a locking component inside. The locking component is used to lock the copper connecting pieces to the ends of the wire body. A locking bolt is fixedly installed between the end of the copper connector and the connector terminal. A support spring is fixedly installed at the end of the copper connector away from the connector terminal. The support spring is fixedly installed on the top of the support base plate.

[0005] Preferably, the locking assembly includes a locking slide bar, which is slidably installed inside a corresponding rectangular mounting bracket. An arc-shaped locking piece is fixedly installed at one end of the locking slide bar near the conductor body, and the arc-shaped locking piece is used to contact the conductor body as the locking slide bar moves down.

[0006] Preferably, a concave limiting frame is fixedly installed inside the rectangular assembly frame, and locking frames are fixedly installed on both sides of the concave limiting frame. A limiting frame is fixedly installed at one end of the locking slide rod near the arc-shaped locking piece. Locking shafts are slidably installed at both ends of the limiting frame, and locking holes adapted to the locking shafts are opened inside the locking frames on both sides.

[0007] Preferably, each locking shaft has an inclined surface at the end near the locking hole, and a return spring is fixedly installed at the end away from the locking hole. The return spring is fixedly installed inside the limiting frame. A sliding rod is slidably connected inside the locking slide rod. A connecting pull rope is fixedly installed between the slide rod and the two locking shafts. An unlocking end is fixedly installed at the end of the slide rod, which is used to move the slide rod upward by pulling the unlocking end upward, so that the two locking shafts can retract through the cooperation of the connecting pull rope.

[0008] Preferably, the locking slide bar has two limiting shafts internally rotatably connected, and the two connecting ropes pass over the corresponding limiting shafts respectively.

[0009] Preferably, the substrate has multiple rectangular slots inside, and a sealing plate is fixedly installed inside each rectangular slot. The sealing plate is installed between the corresponding copper wire and the terminal.

[0010] Preferably, a protective cover is fixedly installed on the top of the machine body, and a viewing window is provided inside the protective cover.

[0011] Preferably, a baffle is fixedly installed inside the terminal block, and a rotating sealing frame is rotatably installed on the top of the terminal block. A rotating shaft connects the rotating sealing frame to the terminal block, and the rotating sealing frame is used to seal the end of the wire body.

[0012] Preferably, multiple sealing ring frames are fixedly installed on the top of the baffle and the end of the rotating sealing frame. The sealing ring frames are semi-circular in shape and are used to fix the wire body as the rotating sealing frame rotates. Elastic filling cotton cores are fixedly installed inside the multiple sealing ring frames.

[0013] Preferably, both ends of the rotating sealing frame are equipped with positioning bolts, and both ends of the baffle are provided with threaded holes that are compatible with the positioning bolts.

[0014] This invention provides a single-phase electronic energy meter. Compared with the prior art, it has the following advantages: (1) With the setting of the wiring frame, when multiple sections of the conductor body need to be wired, the conductor body can be inserted into the corresponding rectangular assembly frame, and then the arc-shaped locking piece can be moved down by pressing the locking slide rod to lock the conductor body and the copper piece. At the same time, the conductor body is locked by the cooperation of the concave limit frame and the locking frame. Then, by pulling the unlocking end upward, the locking operation of the end of the conductor body can be canceled by the cooperation of the slide rod and other components. This facilitates the replacement of the conductor body and the copper piece. On the one hand, it can ensure the wiring effect, and on the other hand, it can facilitate the wiring and disconnection of conductor bodies of different sizes, thus improving the assembly convenience and subsequent maintenance convenience of the equipment.

[0015] (2) The single-phase electronic energy meter, through the cooperation between the baffle and the rotating sealing frame, can lock the wire body after wiring by merging the multiple sealing ring frames installed at its end and the multiple sealing ring frames installed at the top of the baffle when the rotating sealing frame is closed. At this time, the elastic filling cotton core installed inside the sealing ring frame can contact the wire body, which improves the fixing effect of the wire body and avoids loosening of the connection end with the copper strip, while improving the sealing performance inside the wiring frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of cross-section structure; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 For the present invention Figure 2 Top view of the structure; Figure 5 This is a schematic diagram of the structure of the rotating sealing frame of the present invention after it is rotated open; Figure 6 This is a schematic diagram of the terminal block and the supporting substrate structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a cross-sectional view of the locking slide bar and concave limiting frame of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C; Figure 10 For the present invention Figure 8Side view diagram.

[0017] In the diagram: 1. Body; 2. Protective cover; 201. Viewing window; 3. Counter; 4. Circuit board; 5. Wiring terminal; 6. Wiring bracket; 601. Baffle; 602. Threaded hole; 7. Rotary sealing bracket; 701. Rotating shaft; 702. Positioning bolt; 8. Sealing ring bracket; 9. Bearing base plate; 901. Rectangular slot; 10. Rectangular assembly bracket; 11. Wire body; 12. Wiring copper sheet; 121. Locking bolt; 122. Support spring; 123. Sealing plate; 13. Locking slide bar; 131. Arc-shaped locking piece; 132. Slide bar; 133. Unlocking end; 134. Limiting shaft; 14. Concave limiting bracket; 15. Locking bracket; 151. Locking hole; 16. Limiting bracket; 17. Locking shaft; 171. Return spring; 18. Connecting pull rope. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-10 The present invention provides two technical solutions, specifically including the following embodiments: Example 1: In this embodiment of the invention, a single-phase electronic energy meter includes a body 1. A counter 3 and a circuit board 4 are fixedly installed inside the body 1. Multiple wiring terminals 5 are fixedly installed inside the body 1. A wiring frame 6 is fixedly installed at the end of the body 1. The ends of the multiple wiring terminals 5 extend into the wiring frame 6 for connecting the wire body 11 to the corresponding wiring terminal 5. In this embodiment of the invention, both the counter 3 and the circuit board 4 are existing devices. The circuit board 4 is controlled based on the existing PLC control module, which will not be described in detail here. In this embodiment of the invention, specifically, a carrier base plate 9 is fixedly installed inside the terminal block 6, and a plurality of copper wire pieces 12 are fixedly provided inside the carrier base plate 9. The copper wire pieces 12 are electrically connected to the corresponding terminal 5. A rectangular mounting bracket 10 is provided on the outside of each terminal 5. The rectangular mounting bracket 10 is fixedly installed on the top of the carrier base plate 9. A locking component is provided inside the rectangular mounting bracket 10. The locking component is used to lock the copper wire pieces 12 to the end of the wire body 11. In this embodiment of the invention, specifically, when connecting the wire body 11 to the corresponding terminal 5, the wire body 11 is first inserted into the corresponding rectangular assembly frame 10, and then the wire body 11 is locked by the cooperation of the locking component, thus completing the wiring operation of the wire body 11. In this embodiment of the invention, specifically, a locking bolt 121 is fixedly installed between the end of the copper wire piece 12 and the terminal 5, and a support spring 122 is fixedly installed at the end of the copper wire piece 12 away from the terminal 5. The support spring 122 is fixedly installed on the top of the support substrate 9. In this embodiment of the invention, specifically, the locking component includes a locking slide bar 13, which is slidably installed inside the corresponding rectangular mounting bracket 10. An arc-shaped locking piece 131 is fixedly installed at one end of the locking slide bar 13 near the wire body 11. The arc-shaped locking piece 131 is used to contact the wire body 11 as the locking slide bar 13 moves down. In this embodiment of the invention, specifically, a concave limiting frame 14 is fixedly installed inside the rectangular assembly frame 10, and a locking frame 15 is fixedly installed on both sides of the concave limiting frame 14. A limiting frame 16 is fixedly installed at one end of the locking slide rod 13 near the arc-shaped locking piece 131, and a locking shaft 17 is slidably installed at both ends of the limiting frame 16. Locking holes 151 that are adapted to the locking shaft 17 are opened inside the locking frames 15 on both sides. In this embodiment of the invention, specifically, after the wire body 11 is inserted into the corresponding rectangular assembly frame 10, the locking slide bar 13 is pressed down, so that the locking slide bar 13 can be driven by force to move the arc-shaped locking piece 131 down, so that the arc-shaped locking piece 131 contacts the wire body 11, and the wire body 11 is pressed towards the connecting copper piece 12. As the wire body 11 contacts the connecting copper piece 12, the connecting copper piece 12 can be deformed by force, and the end support spring 122 is pressed, thereby ensuring the connection stability. In this embodiment of the invention, specifically, when the locking slide bar 13 moves down, it can simultaneously drive the limiting frame 16 to slide inside the locking frame 15. At this time, the locking shafts 17 at both ends of the limiting frame 16 can be inserted into the corresponding locking holes 151 to achieve the locking operation of the locking slide bar 13. In this embodiment of the invention, specifically, the locking shaft 17 is provided with an inclined surface at one end near the locking hole 151, and a return spring 171 is fixedly installed at the other end of the locking shaft 17 away from the locking hole 151. The return spring 171 is fixedly installed inside the limiting frame 16. When the locking shaft 17 moves down with the limiting frame 16, the inclined surface allows the locking shaft 17 to be retracted into the limiting frame 16 by force, squeezing the return spring 171 until it reaches the matching locking hole 151 to complete the locking operation. This enables locking operations for wire bodies 11 of different sizes, ensuring the locking effect while improving the applicability of the equipment. In this embodiment of the invention, specifically, a sliding rod 132 is slidably connected inside the locking slide rod 13. A connecting pull rope 18 is fixedly installed between the slide rod 132 and the two locking shaft rods 17. An unlocking end 133 is fixedly installed at the end of the slide rod 132, which is used to drive the slide rod 132 to move upward by pulling the unlocking end 133 upward, so that the two locking shaft rods 17 can retract through the cooperation of the connecting pull rope 18. In this embodiment of the invention, specifically, by setting the slide bar 132, when it is necessary to release the lock on the wire body 11, as the unlocking end 133 is pulled upward, the slide bar 132 can slide upward under force, and the corresponding connecting pull rope 18 pulls the locking shaft 17, so that the locking shaft 17 disengages from the corresponding locking hole 151. At this time, the locking slide bar 13 can drive the arc-shaped locking piece 131 to move upward, releasing the lock on the wire body 11, which facilitates the subsequent replacement of the wire body 11 and the connecting copper piece 12, and improves the maintenance convenience of the equipment. In this embodiment of the invention, specifically, the locking slide bar 13 has two limiting shafts 134 internally rotatably connected, and the two connecting pull ropes 18 respectively pass around the corresponding limiting shafts 134; In this embodiment of the invention, specifically, the frictional force between the connecting pull rope 18 and the locking slide bar 13 can be further reduced by the cooperation of the limiting shaft 134. In this embodiment of the invention, specifically, the substrate 9 has a plurality of rectangular slots 901 inside, and a sealing plate 123 is fixedly installed inside each rectangular slot 901. The installation position of the sealing plate 123 is located between the corresponding wiring copper plate 12 and the wiring terminal 5. In this embodiment of the invention, specifically, the cooperation between the rectangular slot 901 and the sealing plate 123 can improve the sealing between the terminal 5 and the terminal frame 6, prevent humid air and water droplets from entering the body 1, and improve the waterproof and moisture-proof performance of the equipment. In this embodiment of the invention, specifically, a protective cover 2 is fixedly installed on the top of the body 1, and a viewing window 201 is opened inside the protective cover 2. A tempered glass layer is installed inside the viewing window 201, which is not shown in the figure. In this embodiment of the invention, specifically, by setting the wiring bracket 6, when it is necessary to perform wiring operations on multiple sections of wire body 11, the wire body 11 can be inserted into the corresponding rectangular assembly bracket 10, and then the arc-shaped locking piece 131 can be moved down by pressing the locking slide bar 13, locking the wire body 11 and the wiring copper piece 12. At the same time, the locking slide bar 13 is positioned by the cooperation of the concave limiting bracket 14 and the locking bracket 15 until the locking operation on the end of the wire body 11 is canceled by pulling the unlocking end 133 upward. On the one hand, the wiring effect can be guaranteed, and on the other hand, it is convenient to perform wiring and disconnection operations on wire bodies 11 of different sizes, improving the assembly convenience of the equipment and the convenience of subsequent maintenance.

[0020] Example 2: Based on Example 1, a baffle 601 is fixedly installed inside the terminal block 6, and a rotating sealing frame 7 is rotatably installed on the top of the terminal block 6. A rotating shaft 701 is connected between the rotating sealing frame 7 and the terminal block 6. The rotating sealing frame 7 is used to seal the end of the wire body 11. In this embodiment of the invention, specifically, multiple sealing ring frames 8 are fixedly installed on the top of the baffle 601 and the end of the rotating sealing frame 7. The sealing ring frame 8 is semi-circular in shape and is used to fix the wire body 11 as the rotating sealing frame 7 rotates. Elastic filling cotton cores are fixedly installed inside the multiple sealing ring frames 8. In this embodiment of the invention, specifically, both ends of the rotating sealing frame 7 are equipped with positioning bolts 702, and both ends of the baffle 601 are provided with threaded holes 602 that are compatible with the positioning bolts 702. In this embodiment of the invention, specifically, through the cooperation between the baffle 601 and the rotating sealing frame 7, when performing wiring operations on the wire body 11, the rotating sealing frame 7 is first opened. As the wire body 11 is connected to the corresponding terminal 5, the rotating sealing frame 7 is closed. During the closing process, the multiple sealing ring frames 8 installed at its end can merge with the sealing ring frame 8 installed on the top of the baffle 601. At this time, the elastic filling cotton core installed inside the sealing ring frame 8 can contact the wire body 11, which on the one hand improves the fixing effect of the wire body 11 and avoids loosening of the connection end with the copper wire piece 12, and on the other hand improves the sealing performance inside the wiring frame 6.

[0021] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0022] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A single-phase electronic energy meter, comprising a body (1), wherein a counter (3) and a circuit board (4) are fixedly installed inside the body (1), characterized in that: Multiple terminals (5) are fixedly installed inside the body (1), and a wiring frame (6) is fixedly installed at the end of the body (1). The ends of the multiple terminals (5) extend into the wiring frame (6) for connecting the wire body (11) to the corresponding terminal (5). The connector frame (6) has a carrier base plate (9) fixedly installed inside. The carrier base plate (9) has multiple copper wire pieces (12) fixedly installed inside. The copper wire pieces (12) are electrically connected to the corresponding terminals (5). The outer side of each terminal (5) is provided with a rectangular mounting frame (10). The rectangular mounting frame (10) is fixedly installed on the top of the carrier base plate (9). The rectangular mounting frame (10) has a locking component inside. The locking component is used to lock the copper wire pieces (12) to the end of the wire body (11). A locking bolt (121) is fixedly installed between the end of the copper wire piece (12) and the terminal (5). A support spring (122) is fixedly installed at the end of the copper wire piece (12) away from the terminal (5). The support spring (122) is fixedly installed on the top of the support base plate (9).

2. A single-phase electronic energy meter according to claim 1, characterized in that: The locking assembly includes a locking slide (13), which is slidably installed inside the corresponding rectangular mounting bracket (10). An arc-shaped locking piece (131) is fixedly installed at one end of the locking slide (13) near the conductor body (11). The arc-shaped locking piece (131) is used to contact the conductor body (11) as the locking slide (13) moves down.

3. A single-phase electronic energy meter according to claim 2, characterized in that: The rectangular assembly frame (10) is fixedly installed with a concave limiting frame (14). Both sides of the concave limiting frame (14) are fixedly installed with locking frames (15). The locking slide rod (13) is fixedly installed with a limiting frame (16) at one end near the arc-shaped locking piece (131). Both ends of the limiting frame (16) are slidably installed with locking shafts (17). The locking frames (15) on both sides are provided with locking holes (151) that are compatible with the locking shafts (17).

4. A single-phase electronic energy meter according to claim 3, characterized in that: The locking shaft (17) has an inclined surface at the end near the locking hole (151). A return spring (171) is fixedly installed at the end of the locking shaft (17) away from the locking hole (151). The return spring (171) is fixedly installed inside the limit frame (16). A slide rod (132) is slidably connected inside the locking slide rod (13). A connecting pull rope (18) is fixedly installed between the slide rod (132) and the two locking shafts (17). An unlocking end (133) is fixedly installed at the end of the slide rod (132), which is used to move the slide rod (132) upward by pulling the unlocking end (133) upward, so that the two locking shafts (17) can retract through the cooperation of the connecting pull rope (18).

5. A single-phase electronic energy meter according to claim 4, characterized in that: The locking slide bar (13) has two limiting shafts (134) internally rotatably connected, and the two connecting ropes (18) pass over the corresponding limiting shafts (134) respectively.

6. A single-phase electronic energy meter according to claim 1, characterized in that: The substrate (9) has multiple rectangular slots (901) inside, and a sealing plate (123) is fixedly installed inside each rectangular slot (901). The sealing plate (123) is installed between the corresponding copper wire (12) and the terminal (5).

7. A single-phase electronic energy meter according to claim 1, characterized in that: A protective cover (2) is fixedly installed on the top of the body (1), and a viewing window (201) is opened inside the protective cover (2).

8. A single-phase electronic energy meter according to claim 1, characterized in that: A baffle (601) is fixedly installed inside the terminal block (6), and a rotating sealing frame (7) is rotatably installed on the top of the terminal block (6). A rotating shaft (701) is connected between the rotating sealing frame (7) and the terminal block (6). The rotating sealing frame (7) is used to seal the end of the wire body (11).

9. A single-phase electronic energy meter according to claim 8, characterized in that: Multiple sealing ring frames (8) are fixedly installed on the top of the baffle (601) and the end of the rotating sealing frame (7). The sealing ring frame (8) is semi-circular in shape. The sealing ring frame (8) is used to fix the wire body (11) as the rotating sealing frame (7) rotates. Elastic filling cotton cores are fixedly installed inside the multiple sealing ring frames (8).

10. A single-phase electronic energy meter according to claim 9, characterized in that: Both ends of the rotating sealing frame (7) are equipped with positioning bolts (702), and both ends of the baffle (601) are provided with threaded holes (602) that are compatible with the positioning bolts (702).

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