High protection electric energy meter

Abstract

The utility model discloses a circuit board one end is equipped with a plurality of terminal blocks, and the opening end of the electric energy meter shell is buckled with the cover, and the locking mechanism is used for fixing the cover and the electric energy meter shell, the circuit board is inserted between two first slot plates, the terminal block is internal thread tubular structure, the second slot plate is fixedly installed in the top of the electric energy meter shell, the battery compartment is slidably connected with the second slot plate, the outer end part of the cover is provided with a threaded hole at the position of the battery compartment, and a battery cover is installed in the threaded hole in cooperation. The utility model discloses the circuit board of electric energy meter is convenient to dismount and install, and it is installed in the separate chamber with the battery compartment, when the circuit board fails or needs to change the battery, only needs to install and dismount the corresponding part, improves the overhauling efficiency, and the terminal block of circuit board adopts the threaded connection mode, and the connection is firm, avoids the live part to be exposed outside, and improves the security.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, specifically a highly protective electricity meter. Background Technology

[0002] An electricity meter is an instrument used to measure electrical energy; it is also called a kilowatt-hour meter, a power meter, or a kilowatt-hour meter. It refers to instruments that measure various electrical quantities. Under low voltage and low current conditions, an electricity meter can be directly connected to the circuit for measurement.

[0003] The circuit boards and battery compartments of existing electricity meters are usually fixed inside the meter housing with multiple screws. When the circuit board needs to be repaired or the battery needs to be replaced, the entire meter housing needs to be disassembled, which is cumbersome and affects the repair efficiency. At the same time, the existing circuit board terminals are usually wired by screws, which is not stable enough and the live parts of the terminals are easily exposed, which is not safe. Utility Model Content

[0004] This invention provides a highly protective energy meter, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A highly protective energy meter includes an energy meter housing and a circuit board. Multiple terminals are fixedly mounted on one end of the circuit board. The meter also includes a cover and a battery compartment. One end of the energy meter housing is open, and the cover is fastened to the open end of the energy meter housing. Locking mechanisms are installed on both sides of the cover to fix it to the energy meter housing. First slot plates are fixedly mounted on both sides inside the energy meter housing, and the circuit board is inserted between two of the first slot plates. The terminals are internally threaded tubular structures. Multiple through holes are opened at the end of the energy meter housing away from the cover for insertion of the terminals. A second slot plate is fixedly mounted on the top inside the energy meter housing, and the battery compartment is slidably connected to the second slot plate. A threaded hole is opened at the outer end of the cover at the battery compartment location, and a battery cover is fitted into the threaded hole.

[0006] Preferably, the locking mechanism includes a U-shaped seat and a hook plate. The U-shaped seat is fixedly installed on the outside of the cover near the housing of the electricity meter. The hook plate is rotatably installed in the U-shaped seat through a torsion spring. One end of the hook plate is fixedly provided with a protrusion. Positioning slots are opened on both sides of the electricity meter housing at the position of the U-shaped seat. The protrusion of the hook plate is inserted into the positioning slot through the action of the torsion spring.

[0007] Preferably, a partition is provided between the cover and the circuit board, and two elastic elements are fixedly installed inside the cover. The elastic elements push the partition towards one end of the circuit board through elastic force.

[0008] Preferably, the two inner walls of the electricity meter housing are fixedly installed with baffles, and the partition is in contact with the baffles by the elastic force of the elastic element.

[0009] Preferably, the elastic element includes a telescopic cylinder and a spring, with both ends of the telescopic cylinder fixedly connected to the cover and the partition, respectively, and the spring located inside the telescopic cylinder.

[0010] Preferably, the terminal block is threadedly connected to a tubular connector.

[0011] Preferably, the opening end of the electricity meter housing is provided with an integral frame plate, and the cover is fastened to the frame plate.

[0012] Preferably, the surface of the electricity meter housing is provided with a window.

[0013] The circuit board of this utility model energy meter is easy to disassemble and install. It is installed in a separate chamber from the battery compartment. When the circuit board fails or the battery needs to be replaced, only the corresponding part needs to be installed or disassembled, which improves maintenance efficiency. At the same time, the wiring terminals of the circuit board adopt a threaded connection method, which is firm and avoids the live parts being exposed, thus improving safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a highly protective energy meter; Figure 2 A cross-sectional view of a highly protective energy meter; Figure 3 An exploded view of a highly protective energy meter; Figure 4 This is a structural diagram of the electricity meter casing; Figure 5 This is a structural diagram of the locking mechanism.

[0015] In the picture: 1. Meter housing; 11. Window; 12. Frame plate; 13. Positioning slot; 14. First slot plate; 15. Second slot plate; 16. Through hole; 17. Stop bar; 2. Cover; 21. Battery cover; 3. Circuit board; 31. Terminal block; 4. Partition; 5. Elastic element; 6. Locking mechanism; 61. U-shaped seat; 62. Hook plate; 63. Torsion spring; 7. Battery compartment; 8. Tubular connector. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-5 As shown, this utility model provides a highly protective electricity meter, including an electricity meter housing 1 and a circuit board 3. One end of the circuit board 3 is fixedly provided with multiple wiring terminals 31. It also includes a cover 2 and a battery compartment 7. One end of the electricity meter housing 1 is open, and the cover 2 is fastened to the open end of the electricity meter housing 1. The contact area can be sealed with glue. Locking mechanisms 6 are installed on both sides of the cover 2 to fix the cover 2 to the electricity meter housing 1. First slot plates 14 are fixedly installed on both sides inside the electricity meter housing 1. The circuit board 3 is inserted between two first slot plates 14. Sub-31 is an internally threaded tubular structure, which is integrally formed with the circuit board 3 by welding. The end of the energy meter housing 1 away from the cover 2 has multiple through holes 16 for the insertion of the wiring terminal 31. A second slot plate 14 is fixedly installed on the top of the energy meter housing 1. The battery compartment 7 is slidably connected to the second slot plate 14. The outer end of the cover 2 has a threaded hole at the position of the battery compartment 7. The battery cover 21 is installed in the threaded hole. After the battery cover 21 and the circuit board 3 are installed, glue can be injected on the surface of the battery cover 21 and the edge of the wiring terminal 31 to achieve a strong seal.

[0018] In this embodiment, the locking mechanism 6 includes a U-shaped seat 61 and a hook plate 62. The U-shaped seat 61 is fixedly installed on the outside of the cover 2 near the energy meter housing 1. The hook plate 62 is rotatably installed in the U-shaped seat 61 through a torsion spring 63. One end of the hook plate 62 is fixedly provided with a protrusion. Positioning slots 13 are opened on both sides of the energy meter housing 1 at the position of the U-shaped seat 61. The protrusion of the hook plate 62 is inserted into the positioning slot 13 by the action of the torsion spring 62. When it is necessary to remove the cover 2, simply press one end of the hook plate 62 to make it pry up, and its protrusion will disengage from the positioning slot 13, thereby removing the cover 2 from the opening end of the energy meter housing 1.

[0019] In this embodiment, a partition 4 is provided between the cover 2 and the circuit board 3. Two elastic elements 5 are fixedly installed inside the cover 2. The elastic elements 5 push the partition 4 towards one end of the circuit board 3 through elastic force.

[0020] To ensure that the partition 4 can stably separate the circuit board 3 and the cover 2, in this embodiment, baffles 17 are fixedly installed on both inner side walls of the energy meter housing 1, and the partition 4 is in contact with the baffles 17 by the elastic force of the elastic element 5.

[0021] Furthermore, in this embodiment, the elastic element 5 includes a telescopic cylinder and a spring. The two ends of the telescopic cylinder are fixedly connected to the cover 2 and the partition 4, respectively. The spring is located inside the telescopic cylinder and provides elastic force.

[0022] In this embodiment, the terminal block 31 is threadedly connected to a tubular connector 8. Specifically, one end of the tubular connector 8 is provided with a threaded post for connecting to electricity. The threaded post can connect to the internal thread of the terminal block 31 to realize the connection. The threaded connection between the tubular connector 8 and the terminal block 31 can increase the firmness of the connection, so that the exposed live parts are no longer exposed.

[0023] To facilitate the installation of the cover 2, in this embodiment, the opening end of the energy meter housing 1 is provided with an integral frame plate 12, and the cover 2 is fastened to the frame plate 12.

[0024] In this embodiment, the surface of the electricity meter housing 1 is provided with a window 11, which is specifically located at the display screen position of the circuit board 3, and a transparent plate is installed in the window 11.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highly protective energy meter, comprising an energy meter housing and a circuit board, wherein one end of the circuit board is fixedly provided with multiple wiring terminals, characterized in that: It also includes a cover and a battery compartment. One end of the energy meter housing is open, and the cover is fastened to the open end of the energy meter housing. Locking mechanisms are installed on both sides of the cover to fix the cover to the energy meter housing. First slot plates are fixedly installed on both sides inside the energy meter housing. The circuit board is inserted between the two first slot plates. The wiring terminal is a threaded tubular structure. Multiple through holes are opened at the end of the energy meter housing away from the cover for the wiring terminal to be inserted. A second slot plate is fixedly installed at the top inside the energy meter housing. The battery compartment is slidably connected to the second slot plate. A threaded hole is opened at the outer end of the cover at the position of the battery compartment, and a battery cover is installed in the threaded hole.

2. The high-protection energy meter according to claim 1, characterized in that: The locking mechanism includes a U-shaped seat and a hook plate. The U-shaped seat is fixedly installed on the outside of the cover near the housing of the electricity meter. The hook plate is rotatably installed in the U-shaped seat through a torsion spring. One end of the hook plate is fixedly provided with a protrusion. Positioning slots are opened on both sides of the electricity meter housing at the position of the U-shaped seat. The protrusion of the hook plate is inserted into the positioning slot through the action of the torsion spring.

3. A high-protection energy meter according to claim 1, characterized in that: A partition is provided between the cover and the circuit board. Two elastic elements are fixedly installed inside the cover. The elastic elements push the partition towards one end of the circuit board through elastic force.

4. A high-protection energy meter according to claim 3, characterized in that: The two inner walls of the electricity meter housing are fixedly installed with baffles, and the partition is attached to the baffles by the elastic force of the elastic element.

5. A highly protective energy meter according to claim 4, characterized in that: The elastic element includes a telescopic cylinder and a spring. The two ends of the telescopic cylinder are fixedly connected to the cover and the partition, respectively, and the spring is located inside the telescopic cylinder.

6. A high-protection energy meter according to claim 1, characterized in that: The terminal block is threadedly connected to a tubular connector.

7. A high-protection energy meter according to claim 1, characterized in that: The opening end of the electricity meter housing is provided with an integral frame plate, and the cover is fastened to the frame plate.

8. A high-protection energy meter according to claim 1, characterized in that: The surface of the electricity meter housing is provided with a window.

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