Electric meter

Abstract

The utility model discloses an electricity meter which comprises an upper shell and a lower shell, one side of the upper shell is clamped with the lower shell through two buckles, the other side of the upper shell is fixedly connected with the lower shell through a bolt, the bottom of the lower shell is provided with a pressing type self-locking buckle, and the pressing type self-locking buckle is movably connected to a clamping rail of a distribution box. A screen display driving board, a main control circuit board and a power board are sequentially arranged in the electric meter from top to bottom, the screen display driving board and the main control circuit board are in communication connection through a vertically-pasted contact pin and a vertically-pasted socket, and the main control circuit board and the power board are in communication connection through an ox horn base flat cable. The remote data acquisition device is simple in structure, convenient to disassemble and assemble and convenient to maintain, not only can perform remote data acquisition and real-time monitoring and improve the efficiency and accuracy of data acquisition, but also can quickly detect and record events at the moment when a power supply is interrupted, so that the remote data acquisition and real-time monitoring can be realized, and the data acquisition efficiency and accuracy can be improved. Measures are taken to protect data in the ammeter from being lost, and the application prospect is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of instruments and meters, and particularly relates to an electric meter. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, people's electricity consumption load is increasing day by day. Therefore, electric meters have been widely and massively applied. However, there are still many defects in the installation and use of traditional mechanical electric meters. For example: 1. Existing electric meters lack a dedicated power-off detection circuit, or the power-off detection is not sensitive enough, resulting in the inability to record and protect data in time when the power supply is interrupted; 2. The electric meter data needs to be collected manually on site, with low efficiency and low accuracy; 3. The structure is complex, inconvenient for disassembly and assembly, and inconvenient for maintenance. Therefore, there is an urgent need to develop a new type of electric meter to solve the above technical problems.

[0003] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0004] The purpose of the present utility model is to provide an electric meter with a simple structure, convenient disassembly and assembly, and easy maintenance. It can not only perform remote data collection and real-time monitoring, improve the efficiency and accuracy of data collection, but also quickly detect and record events at the moment of power interruption, and take measures to protect the internal data of the electric meter from loss. It has a broad application prospect and is conducive to popularization and application.

[0005] In order to achieve the above purpose, an electric meter provided by the present utility model includes an upper shell and a lower shell. One side of the upper shell is snap-connected to the lower shell through two snap fasteners, and the other side is fixedly connected through bolts. The bottom of the lower shell is provided with a push-type self-locking snap fastener, and the push-type self-locking snap fastener is movably connected to the card rail of the distribution box. Inside the electric meter, a screen display driving board, a main control circuit board, and a power board are arranged in sequence from top to bottom. The screen display driving board and the main control circuit board are communicatively connected through vertical patch pins and vertical patch sockets, and the main control circuit board and the power board are communicatively connected through a cowhorn socket wiring harness. The main control circuit board is provided with a 4G module for remote communication and a power-off protection detector for power-off detection.

[0006] Preferably, the screen display driving board is provided with a screen display driver, the power board is provided with a power module, and the main control circuit board is further provided with a metering module for analog input and digital output, a fee control module for real-time billing, and a main controller. The main controller is respectively connected to the 4G module, the power-off protection detector, the metering module, the screen display driver, and the power module, and the metering module and the fee control module are bidirectionally connected.

[0007] Preferably, the Powerlow output point of the power-off protection detector is connected to resistor R72, the end of R72 is connected to pin 4 of the voltage comparator U44, pin 1 of U44 is connected to R75 and R74, R75 and R74 are connected in parallel, the upper end of R75 is externally connected to a 9V input, the lower end of R74 is grounded, pin 2 of U44 is grounded, pin 3 of U44 is connected to R78 and R77, R78 and R77 are connected in parallel, the upper end of R78 is externally connected to a 5V input, the lower end of R77 is grounded, pin 5 of U44 is externally connected to a 5V input, and a 100nF capacitor C71 is connected in series, and the negative pole of C71 is grounded.

[0008] Preferably, a wiring cover is provided on the upper shell.

[0009] Preferably, a plurality of communication terminals are reserved inside the wiring protection cover.

[0010] Preferably, a wiring cover lock is provided on the upper housing.

[0011] Preferably, a plurality of wire inlet and outlet ports are provided on the front side of the lower shell.

[0012] Preferably, a window is provided on the top of the upper shell.

[0013] The utility model provides an electric meter, which has the following beneficial effects.

[0014] 1. The upper shell of the utility model is connected to the lower shell on one side by two buckles. The installation is simple and quick, and no tools are needed. The installation can be completed by just buckling the two ends together, which greatly saves time and labor costs. It is firm, reliable, and has strong pressure resistance and tightness.

[0015] 2. The lower shell of the utility model is movably connected to the rail of the distribution box through a press-type self-locking buckle, which simplifies the installation process, saves installation space, and is easy to move and replace.

[0016] 3. The display driver board of the utility model is connected to the main control circuit board through the vertical sticker pins and the vertical sticker sockets, which is easy to disassemble and assemble, helping to reduce the complexity and cost of the production process, and also convenient for users to perform simple maintenance and replacement by themselves.

[0017] 4. This utility model realizes remote data collection and real-time monitoring through the built-in 4G module. There is no need for manual on-site data collection. Data can be read directly through a mobile phone or computer, which can effectively improve the efficiency and accuracy of data collection.

[0018] 5. The utility model can quickly detect and record events at the moment of power failure through the power failure protection detector, and take measures to protect the internal data of the meter from loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of an electric meter provided by the present utility model;

[0020] Figure 2 A bottom view of an electric meter provided by the present utility model;

[0021] Figure 3 A schematic structural view of the upper housing of an electric meter provided by the present utility model;

[0022] Figure 4 A schematic internal structure view of an electric meter provided by the present utility model;

[0023] Figure 5 A block diagram of the internal circuit board of an electric meter provided by the present utility model;

[0024] Figure 6 A circuit diagram of the power-off protection detector of an electric meter provided by the present utility model.

[0025] In the figure:

[0026] 1. Upper housing 2. Lower housing 3. Buckle 4. Bolt 5. Press-type self-locking buckle 6. Wiring cover 7. Window 8. Screen display driving board 9. Main control circuit board 10. Power supply board 11. Vertical insertion pin 12. Vertical socket 13. Inlet and outlet 14. Wiring cover lock. Specific embodiments

[0027] The following further describes the present utility model in conjunction with specific embodiments and the accompanying drawings to facilitate understanding of the content of the present utility model.

[0028] As Figures 1-3 shown, they are respectively a perspective view, a bottom view and a schematic structural view of the lower housing of an electric meter provided by the present utility model. The electric meter includes an upper housing 1 and a lower housing 2. One side of the upper housing 1 is snap-connected to the lower housing 2 through two buckles 3, and the other side is fixedly connected through a bolt 4. The installation is simple and fast, without the need to use any tools. Just snap the two ends of the buckle 3 together to complete the installation, which greatly saves time and labor costs, and is firm, reliable, with strong pressure resistance and tightness. The bottom of the lower housing 2 is provided with a press-type self-locking buckle 5, and the press-type self-locking buckle 5 is movably connected to the card rail of the distribution box, which simplifies the installation process, saves installation space, and is convenient for moving and replacing.

[0029] As Figure 4As shown in the figure, it is a schematic diagram of the internal structure of an electric meter provided by the present utility model. Inside the electric meter, a screen display driving board 8, a main control circuit board 9, and a power supply board 10 are successively arranged from top to bottom. The screen display driving board 8 is communicatively connected to the main control circuit board 9 through vertical patch pins 11 and vertical patch sockets 12. The main control circuit board 9 is communicatively connected to the power supply board 10 through a horn socket row wire, which is convenient for disassembly and assembly, helps to reduce the complexity and cost in the production process, and is also convenient for users to perform simple repairs and replacements by themselves. The main control circuit board 9 is provided with a 4G module for remote communication and a power failure protection detector for power failure detection. The present utility model realizes remote data collection and real-time monitoring by integrating a 4G module. There is no need for manual on-site data collection, and data can be directly read through a mobile phone or a computer, which can effectively improve the efficiency and accuracy of data collection. Through the power failure protection detector, the present utility model can quickly detect and record events at the moment of power interruption, and at the same time take measures to protect the internal data of the electric meter from loss.

[0030] As Figure 5 shown in the figure, it is a block diagram of the internal circuit board of an electric meter provided by the present utility model. There is a screen display driver on the screen display driving board 8, and a power supply module is provided on the power supply board 10. The main control circuit board 9 is also provided with a metering module for analog quantity input and digital quantity output, a fee control module for real-time billing, and a main controller. The main controller is respectively connected to the 4G module, the power failure protection detector, the metering module, the screen display driver, and the power supply module. The metering module is bidirectionally connected to the fee control module.

[0031] As Figure 6 shown in the figure, it is a circuit diagram of a power failure protection detector of an electric meter provided by the present utility model. The Powerlow output point of the power failure protection detector is connected to resistor R72, and the end of R72 is connected to pin 4 of voltage comparator U44. Pin 1 of U44 is connected to R75 and R74, R75 and R74 are in parallel, the upper end of R75 is externally connected to a 9v input, the lower end of R74 is grounded, pin 2 of U44 is grounded, pin 3 of U44 is connected to R78 and R77, R78 and R77 are in parallel, the upper end of R78 is externally connected to a 5V input, the lower end of R77 is grounded, pin 5 of U44 is externally connected to a 5V input, and a 100nF capacitor C71 is connected in series. The negative electrode of C71 is grounded.

[0032] A wiring cover 6 is provided on the upper housing 1. Multiple communication terminals are reserved inside the wiring cover 6. A wiring cover lock 14 is provided on the upper housing 1. A plurality of wire inlet and outlet ports 13 are provided on the front side of the lower housing 2. A window 7 is provided on the top of the upper housing 1.

[0033] ‌ In this article, specific examples are used to elaborate on the utility model concept in detail. The description of the above embodiments is only used to help understand the core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, any obvious modifications, equivalent substitutions, or other improvements made without departing from the concept of the utility model shall be included within the protection scope of the present utility model.

Claims

1. An electricity meter, characterized in that, It includes an upper housing and a lower housing. One side of the upper housing is snap-connected to the lower housing by two snap fasteners, and the other side is fixedly connected by bolts. A push-type self-locking snap fastener is provided at the bottom of the lower housing. The push-type self-locking snap fastener is movably connected to the card rail of the distribution box. Inside the electricity meter, a screen display driver board, a main control circuit board, and a power board are sequentially arranged from top to bottom. The screen display driver board and the main control circuit board are communicatively connected through vertical insertion pins and vertical insertion sockets. The main control circuit board and the power board are communicatively connected through a horn socket wire harness. A 4G module for remote communication and a power-off protection detector for power-off detection are provided on the main control circuit board.

2. The electricity meter according to claim 1, characterized in that, There is a screen display driver on the screen display driver board. A power module is provided on the power board. A metering module for analog quantity input and digital quantity output, a fee control module for real-time billing, and a main controller are also provided on the main control circuit board. The main controller is respectively connected to the 4G module, the power-off protection detector, the metering module, the screen display driver, and the power module. The metering module and the fee control module are connected bidirectionally.

3. An ammeter according to claim 2, characterized in that, The Powerlow output point of the power-off protection detector is connected to resistor R72. The end of R72 is connected to pin 4 of voltage comparator U44. Pin 1 of U44 is connected to R75 and R74. R75 and R74 are in parallel. The upper end of R75 is externally connected to a 9v input, and the lower end of R74 is grounded. Pin 2 of U44 is grounded. Pin 3 of U44 is connected to R78 and R77. R78 and R77 are in parallel. The upper end of R78 is externally connected to a 5V input, and the lower end of R77 is grounded. Pin 5 of U44 is externally connected to a 5V input, in series with a 100nF capacitor C71, and the negative pole of C71 is grounded.

4. An ammeter according to claim 3, characterized in that, A wiring cover is provided on the upper housing.

5. An electricity meter according to claim 4, characterized in that, A plurality of communication terminals are reserved inside the wiring cover.

6. The electricity meter according to claim 5, characterized in that, A wiring cover lock is provided on the upper housing.

7. An electricity meter according to claim 6, characterized in that Several inlet and outlet ports are provided on the front side of the lower housing.

8. The electricity meter according to claim 7, characterized in that, A window is provided at the top of the upper housing.

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