An electric energy meter

Abstract

The utility model discloses an electric energy meter, including electric energy meter main part, battery holder, battery, end cover and wiring seat, wiring seat is located on electric energy meter main part, battery holder is located on electric energy meter main part and with electric energy meter main part integrated molding, battery is located in battery holder, end cover and electric energy meter main part joint, the end cover covers battery holder and wiring seat, make battery holder and wiring seat not exposed under the end cover closed state. Compared with prior art, the utility model has good durability and structural stability, and strong compatibility.

Description

Technical Field

[0001] This utility model relates to the field of electricity meters, specifically to an electricity meter. Background Technology

[0002] With the development of power grids, electricity meters are being used more widely. An electricity meter is an instrument used to measure electrical energy; it is also called a kilowatt-hour meter, watt-hour meter, or watt-hour meter. In traditional electricity meter designs, backup power often uses batteries (such as CR2032), which are fixed inside the meter via a battery box. The battery box is generally detachably located inside the meter and includes a battery cover and a battery holder. The battery holder has a cavity to accommodate the battery, and the battery cover and battery holder are detachably connected.

[0003] While facilitating battery replacement, its inherent drawbacks become increasingly apparent in long-term applications. The mechanical structure of the detachable battery box is prone to wear and tear or poor contact due to repeated disassembly and reassembly. Electricity meters are typically installed outdoors or in industrial environments, where they are subjected to long-term vibration, temperature variations, and dust intrusion. This reduces the stability of the connection between the battery box and the electrode contacts, potentially leading to increased contact resistance, momentary power outages, and clock resets or abnormal data read / write operations. Especially in high-temperature and high-humidity areas, metal contact oxidation intensifies, further weakening conductivity. Ordinary users or maintenance personnel often struggle to repair these hidden faults using conventional maintenance methods. Furthermore, the detachable battery box lacks compatibility and standardization. Different manufacturers or models of electricity meters may use varying battery specifications (such as diameter, thickness, and electrode position), making it difficult to universally stock batteries and increasing supply chain management complexity. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electricity meter that is durable and has good structural stability in light of the above-mentioned technical status.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: an electricity meter, including an electricity meter body,

[0006] The terminal block is located on the main body of the electricity meter;

[0007] Its characteristic is that the electricity meter also includes:

[0008] The battery holder is mounted on the main body of the electricity meter and is integrally formed with the main body of the electricity meter.

[0009] The battery is located inside the battery holder; and,

[0010] The end cap is snapped into the main body of the electricity meter, and the end cap covers the battery holder and the terminal block, so that the battery holder and the terminal block are not exposed when the end cap is closed.

[0011] Preferably, the battery holder includes: a base disposed on the main body of the electricity meter.

[0012] Mounting section, provided on base; and,

[0013] A snap-fit ​​portion is provided at a distance from the mounting portion. One end of the snap-fit ​​portion is provided on the base, and the other end has a snap-fit ​​block for fixing the battery.

[0014] To accommodate the battery and prevent it from moving, preferably, the side portion of the base extends upward to form a limiting portion for restricting battery displacement.

[0015] Preferably, the limiting part is provided with a first through hole for the battery wire to pass through, or the base is provided with a first through hole for the battery wire to pass through.

[0016] To facilitate battery fixation, preferably, the mounting portion is provided with multiple limiting ribs;

[0017] The limiting rib includes:

[0018] With the battery placed inside the battery holder, the battery abuts against the limiting surface.

[0019] A guide ramp is provided at the upper end of the limiting surface, and the distance between the guide ramp and the mounting part gradually decreases from bottom to top. The limiting surface can also be an inclined surface, so as to accommodate batteries of different sizes.

[0020] Preferably, one end of the meter body is provided with a mounting base, and the battery holder and the terminal block are both disposed on the mounting base.

[0021] Preferably, a positioning plate is provided on one side of the end cap, and correspondingly, the mounting base has a positioning groove for installing the positioning plate. After the end cap is installed, the positioning plate is positioned in the positioning groove, which facilitates snap-fit. The obstruction of the groove arm of the positioning groove ensures that the end cap is not easily detached when the energy meter is placed at an angle.

[0022] To facilitate external circuit connection and adapt to different operating conditions, preferably, the terminal block and the mounting base are detachably connected, and the terminal block is provided with terminals for electrical connection to external wires.

[0023] Preferably, the electricity meter further includes a PCB board disposed inside the main body of the electricity meter, and the PCB board is electrically connected to the battery.

[0024] To facilitate power supply to the PCB board, preferably, the mounting base is provided with a second through hole, through which the battery wires pass to electrically connect the PCB board and the battery.

[0025] Compared with the prior art, the advantages of this utility model are as follows: the battery holder is set on the main body of the electricity meter and integrally formed with the main body of the electricity meter. The integral forming eliminates the connection gap or screw fixing point between the battery holder and the main body, reduces the risk of loosening or falling off due to external impact and vibration, and avoids the problems of interface wear and oxidation in the split design, extending the service life of the battery and the electricity meter as a whole, and increasing durability and structural stability; in addition, eliminating the separate battery holder can reduce production costs; the end cover covers the battery holder and the terminal block, so that the battery holder and the terminal block are not exposed when the end cover is closed, covering the live terminals, which can prevent personnel from accidentally touching high-voltage parts and prevent the risk of electric shock. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0027] Figure 2 This is an exploded view of an embodiment;

[0028] Figure 3 This is a schematic diagram of the structure of an embodiment (excluding the battery and end cap);

[0029] Figure 4 for Figure 3 A magnified view of point A;

[0030] Figure 5 This is a schematic diagram of the end cap structure. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] like Figures 1-5 The diagram shows a preferred embodiment of the present invention. The electricity meter includes an electricity meter body 1, a terminal block 2, a battery holder 3, a battery 4, and an end cover 5.

[0033] One end of the main body 1 of the electricity meter has a mounting base 11, and the battery holder 3 and the terminal block 2 are both mounted on the mounting base 11.

[0034] The terminal block 2 is located on the main body 1 of the electricity meter. The terminal block 2 is detachably connected to the mounting base 11. The terminal block 2 is provided with a terminal 21 that is electrically connected to the external wire. The terminal 21 is responsible for introducing the current and voltage signals of the power grid into the electricity meter so that the metering chip can perform electricity calculation.

[0035] The battery holder 3 is integrally formed on the main body 1 of the energy meter. The battery holder 3 includes a base 31, a mounting portion 32, a snap-fit ​​portion 33, a limiting portion 34, and limiting ribs 36. The base 31 is located on the main body 1 of the energy meter, and the mounting portion 32 is located on the base 31. The snap-fit ​​portion 33 is spaced apart from the mounting portion 32, with one end of the snap-fit ​​portion 33 located on the base and the other end having a snap-fit ​​block 331 for fixing the battery 4. The side portion of the base 31 extends upward to form a limiting portion 34 for restricting the displacement of the battery 4. The limiting portion 34 has a first through hole 35 for the wires of the battery 4 to pass through, or the base 31 has a first through hole 35 for the wires of the battery 4 to pass through. The mounting portion 32 has multiple limiting ribs 36 extending along the height direction of the energy meter; each limiting rib 36 includes a limiting surface 361 and a guide slope 362. When the battery 4 is placed inside the battery holder 3, the limiting surface 361 abuts against the limiting surface 361; the guide slope 362 is located at the upper end of the limiting surface 361, and the distance between the guide slope 362 and the mounting part 32 gradually decreases from bottom to top.

[0036] Battery 4 is located inside battery holder 3 and is engaged with limiting rib 36 of battery holder 3.

[0037] The end cover 5 is snapped into the main body 1 of the energy meter, and the end cover 5 covers the battery holder 3 and the terminal block 2, so that the battery holder 3 and the terminal block 2 are not exposed when the end cover 5 is closed. A positioning plate 51 is provided on one side of the end cover 5, and correspondingly, the mounting base 11 has a positioning groove 12 for mounting the positioning plate 51.

[0038] The electricity meter also includes a PCB board (not shown in the figure). The PCB board is located inside the main body 1 of the electricity meter and is electrically connected to the battery 4. Correspondingly, the mounting base 11 is provided with a second through hole 13. The wires of the battery 4 pass through the second through hole 13 to make the PCB board electrically connected to the battery 4.

Claims

1. An electricity meter, comprising an electricity meter body (1), Terminal block (2) is located on the main body (1) of the electricity meter; Its features are: Electricity meters also include: The battery holder (3) is disposed on the main body (1) of the energy meter and is integrally formed with the main body (1) of the energy meter; Battery (4), disposed within battery holder (3); and, End cap (5) is snapped into the main body (1) of the energy meter. The end cap (5) covers the battery holder (3) and the terminal block (2) so that the battery holder (3) and the terminal block (2) are not exposed when the end cap (5) is closed.

2. The electricity meter according to claim 1, characterized in that: The battery holder (3) includes: a base (31) disposed on the main body (1) of the electricity meter, Mounting part (32) is provided on base (31); and, The snap-fit ​​part (33) is spaced apart from the mounting part (32). One end of the snap-fit ​​part (33) is provided on the base, and the other end has a snap-fit ​​block (331) for fixing the battery (4).

3. The electricity meter according to claim 2, characterized in that: The side portion of the base (31) extends upward to form a limiting portion (34) for restricting the displacement of the battery (4).

4. The electricity meter according to claim 3, characterized in that: The limiting part (34) is provided with a first through hole (35) for the wires of the battery (4) to pass through, or the base (31) is provided with a first through hole (35) for the wires of the battery (4) to pass through.

5. The electricity meter according to claim 2, characterized in that: The mounting part (32) is provided with a plurality of limiting ribs (36); The limiting rib (36) includes: With the limiting surface (361) in place and the battery (4) inside the battery holder (3), the battery (4) abuts against the limiting surface (361); A guide slope (362) is provided at the upper end of the limiting surface (361), and the distance between the guide slope (362) and the mounting part (32) gradually decreases from bottom to top.

6. The electricity meter according to claim 1, characterized in that: The main body (1) of the electricity meter is provided with a mounting base (11) at one end, and the battery holder (3) and the terminal block (2) are both provided on the mounting base (11).

7. The electricity meter according to claim 6, characterized in that: The end cap (5) has a positioning plate (51) on one side, and the mounting base (11) has a positioning groove (12) for mounting the positioning plate (51).

8. The electricity meter according to claim 6, characterized in that: The terminal block (2) is detachably connected to the mounting base (11), and the terminal block (2) is provided with a terminal (21) for electrical connection with an external wire.

9. The electricity meter according to claim 6, characterized in that: The electricity meter also includes a PCB board, which is located inside the main body (1) of the electricity meter and is electrically connected to the battery (4).

10. The electricity meter according to claim 9, characterized in that: The mounting base (11) is provided with a second through hole (13), and the wires of the battery (4) pass through the second through hole (13) to make the PCB board electrically connected to the battery (4).

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