A remotely operable, precise smart energy meter

Abstract

This utility model discloses a remotely operable, precise smart energy meter, comprising a housing consisting of an upper housing and a lower housing. Slots are provided on the top of both sides of the upper housing, and grooves are provided on both sides of a waterproof plate. The slots and grooves connect to allow the waterproof plate to fit snugly into the upper housing, thus fixing its position. Screw holes are provided on both sides of the lower housing for fixing the live and neutral wires. Screw hole protective caps are provided above the screw holes. A slot is provided at the bottom of the lower housing for fixing the device to a guide rail. A circuit board is located inside the housing. The circuit board, from top to bottom, houses a display screen, indicator lights, buttons, a main chip, a WIFI module, a Bluetooth module, a power chip, and an intermediate relay. This design achieves precise metering, solving the problems of existing energy meters that, while accurate, often have large errors in energy consumption, leading to metering inaccuracies, and the inability to remotely operate due to poor network connectivity.

Description

Technical Field

[0001] This utility model relates to the field of smart energy meter technology, specifically to a remotely operable, precise metering smart energy meter. Background Technology

[0002] An electricity meter is an instrument used to measure electrical energy. It is also called an electricity meter, watt-hour meter, or kilowatt-hour meter. It refers to an instrument that measures various electrical quantities. When using an electricity meter, it is important to note that under low voltage (not exceeding 500 volts) and low current (tens of amps) conditions, the electricity meter can be directly connected to the circuit for measurement. Under high voltage or high current conditions, the electricity meter cannot be directly connected to the line and must be used in conjunction with a voltage transformer or current transformer.

[0003] Networked smart meters are a type of smart meter. However, existing smart meters often suffer from inaccurate metering and significant power consumption errors, leading to measurement deviations. Furthermore, unstable network signals or the absence of Wi-Fi make reliable remote operation impossible, hindering user convenience. These problems primarily stem from deficiencies in the accuracy of existing metering chips, redundancy of communication modules, and waterproof structural design. Utility Model Content

[0004] This utility model discloses a remotely operable, precise smart energy meter, comprising a housing consisting of an upper housing and a lower housing. Slots are provided on the top of both sides of the upper housing, and grooves are provided on both sides of a waterproof plate. The slots and grooves connect to allow the waterproof plate to fit snugly into the upper housing, thus fixing its position. Screw holes are provided on both sides of the lower housing for fixing the live and neutral wires. Screw hole protective caps are provided above the screw holes. A slot is provided at the bottom of the lower housing for fixing the device to a guide rail. A circuit board is located inside the housing. The circuit board, from top to bottom, houses a display screen, indicator lights, buttons, a main chip, a WIFI module, a Bluetooth module, a power chip, and an intermediate relay. This combination achieves precise metering and solves the problems of inaccurate metering, large power errors, and unstable network connections that prevent remote operation in existing smart energy meters.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A remotely operable, precise metering smart energy meter includes a housing, which consists of an upper housing and a lower housing. Slots are provided on the top of both sides of the upper housing, and grooves are provided on both sides of a waterproof plate. The slots and grooves connect to allow the waterproof plate to fit snugly into the upper housing, thus fixing its position. Screw holes are provided on both sides of the lower housing for fixing the live and neutral wires. Screw hole protective caps are provided above the screw holes. The waterproof plate and screw hole protective caps effectively prevent external water from entering the inner wall of the display screen, thus affecting its operation. A slot is provided at the bottom of the housing for fixing the device to a guide rail. A circuit board is located inside the housing, on which the display screen, indicator lights, buttons, main chip, WIFI module, Bluetooth module, power chip, and intermediate relay are sequentially mounted. The top of the indicator lights extends through to the top of the upper housing.

[0007] The WIFI module includes an integrated chip U3. One end of the integrated chip U3 is connected to the Bluetooth RXD for receiving data, and the other end of the integrated chip U3 is connected to the Bluetooth TXD for transmitting data. One end of the integrated chip U3 is connected to the WIFILINK wireless interface, and the other end of the integrated chip U3 is connected to the NRELOAD pin. One end of the integrated chip U3 is connected to the +3.3V power supply, and the other end of the integrated chip U3 is connected to the common ground terminal.

[0008] The circuit board includes an integrated chip U1, which includes a voltage input terminal VIN, a voltage output terminal VOUT, and a common ground terminal. One end of the integrated chip U1 is connected to a 12V power supply, and the other end of the integrated chip U1 is connected to a digital circuit VDD5. The voltage input terminal VIN is connected to the common ground terminal through a capacitor C12, and one end of the voltage output terminal VOUT is connected to the common ground terminal through a capacitor C14. The voltage output terminal VOUT and the common ground terminal are connected in parallel through a capacitor +C13.

[0009] The intermediate relay includes J1 and J2. J1 includes a positive power supply P+ and a negative power supply P-, and J2 includes a positive power supply P+ and a negative power supply P-.

[0010] The main chip includes integrated chip U2. The left and top ends of integrated chip U2 are connected to LED digital tube pins SEG13 to SEG0. The right and top ends of integrated chip U2 are connected to ground points COM0 to COM5. The bottom of integrated chip U2, from right to left, is connected to zeroing IBP, digital chip IBN, changeover switch IAN, changeover switch IAP, temperature UP, reference voltage REF, ground GND, digital circuit VDD5, voltage regulator LDO3, positive digital power supply voltage DVCC, and diode VDCN.

[0011] Further, the screw hole protective cap is slidably connected to the inner wall of the upper housing, and the waterproof plate is connected to the surface slot of the upper housing.

[0012] Further configuration: the top of the display extends to the top of the upper housing, with a waterproof panel located on the outer surface of the display.

[0013] Further, the top of the indicator light extends to the top of the upper housing. The indicator light is green when working normally and red when not working normally.

[0014] This invention, through the aforementioned structure, particularly the metering function of the main chip (based on pins such as temperature UP and reference voltage REF), the communication design of the WIFI module and Bluetooth module (supporting WIFI network connection and Bluetooth operation when WIFI is not available), and the waterproof structure of the waterproof plate and screw hole protective cap, achieves the advantages of accurate metering, reliable remote operation, and effective waterproof protection. It solves the problems of inaccurate metering, large power error, and instability of network leading to the inability to operate remotely in existing smart energy meters. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the outer shell structure of this utility model;

[0017] Figure 3 This is a circuit diagram of the WIFI module structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the system principle of this utility model;

[0019] Figure 5 This is a circuit diagram of the intermediate relay structure of this utility model;

[0020] Figure 6 This is a circuit diagram of the main chip structure of this utility model.

[0021] In the diagram: 1. Upper casing; 2. Lower casing; 4. Waterproof plate; 6. Screw holes; 7. Screw hole protective caps; 8. Slots; 9. Circuit board; 10. Display screen; 11. Indicator light; 12. Button; 13. Main chip; 14. WIFI module; 15. Bluetooth module; 16. Power chip; 17. Intermediate relay. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The components of this utility model, including the upper outer shell 1, lower outer shell 2, slot 3, waterproof plate 4, groove 5, screw hole 6, screw hole protective cap 7, card slot 8, circuit board 9, display screen 10, indicator light 11, button 12, main chip 13, WIFI module 14, Bluetooth module 15, power chip 16, and intermediate relay 17, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0027] Please see Figure 1-6A remotely operated, precise metering smart energy meter includes a housing, which consists of an upper housing 1 and a lower housing 2. The upper housing 1 has slots on both sides at the top, and a waterproof plate 4 has grooves on both sides. The slots and grooves connect to allow the waterproof plate 4 to fit snugly into the upper housing 1, thus fixing its position. The lower housing 2 has screw holes 6 on both sides for fixing the live and neutral wires. Screw hole protective caps 7 are located above the screw holes 6. The waterproof plate 4 and screw hole protective caps 7 effectively prevent external water from entering the inner wall of the display screen 10, thus affecting its normal operation. The lower housing 2 has a slot 8 at the bottom for fixing the device to a guide rail. The housing 1 contains a circuit board 9, on which the display screen 10, indicator light 11, button 12, main chip 13, WIFI module 14, Bluetooth module 15, power chip 16, and intermediate relay 17 are sequentially mounted. The top of the indicator light 11 extends to the top of the upper housing 1. The indicator light 11 is green when working normally and red when not working normally.

[0028] The WIFI module 14 includes an integrated chip U3. One end of the integrated chip U3 is connected to a Bluetooth RXD for receiving data, and the other end of the integrated chip U3 is connected to a Bluetooth TXD for transmitting data. One end of the integrated chip U3 is connected to a wireless interface WIFILINK, and the other end of the integrated chip U3 is connected to a pin NRELOAD. One end of the integrated chip U3 is connected to a power supply of +3.3V, and the other end of the integrated chip U3 is connected to a common ground terminal.

[0029] Circuit board 9 includes integrated chip U1, which includes a voltage input terminal VIN, a voltage output terminal VOUT, and a common ground terminal. One end of integrated chip U1 is connected to the 12V power supply, and the other end of integrated chip U1 is connected to the digital circuit VDD5. The voltage input terminal VIN is connected to the common ground terminal through capacitor C12, and one end of the voltage output terminal VOUT is connected to the common ground terminal through capacitor C14. The voltage output terminal VOUT and the common ground terminal are connected in parallel through capacitor +C13.

[0030] Intermediate relay 17 includes J1 and J2, J1 includes a positive power supply P+ and a negative power supply P-, and J2 includes a positive power supply P+ and a negative power supply P-.

[0031] The main chip 13 includes an integrated chip U2. The left and top ends of the integrated chip U2 are connected to LED digital tube pins SEG13 to SEG0. The right and top ends of the integrated chip U2 are connected to ground points COM0 to COM5. The bottom of the integrated chip U2, from right to left, is connected to zeroing IBP, digital chip IBN, changeover switch IAN, changeover switch IAP, temperature UP, reference voltage REF, ground GND, digital circuit VDD5, voltage regulator LDO3, positive digital power supply voltage DVCC, and diode VDCN.

[0032] In use, the device is connected to Wi-Fi by setting the Wi-Fi module 14, thus enabling the device to connect to the internet. The main chip 13 can obtain the electrical data of the intermediate relay 17 and display it on the display screen 10, as well as upload it through the Wi-Fi module 14. The power can be turned on and off by controlling the intermediate relay 17. The Bluetooth module 15 can read the electrical data of the intermediate relay 17 and control the intermediate relay 17 to turn on and off when there is no Wi-Fi. The device status can be determined by observing the indicator light 11. The Wi-Fi connection can be set by using the button 12. The device can be fixed in the meter box by using the card slot 8.

[0033] This utility model achieves the advantage of accurate metering through the coordinated use of an upper outer shell 1, a lower outer shell 2, a waterproof plate 4, a slot, a display screen 10, screw holes 6, screw hole protective caps 7, a groove, an indicator light 11, a WIFI module 14, a power chip 16, a circuit board 9, a Bluetooth module 15, an intermediate relay 17, and a main chip 13. It solves the problems of inaccurate metering, large power errors, and unstable network that prevents remote operation and makes it inconvenient for people to use existing smart energy meters.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A remotely operable precision metering smart electric energy meter comprising a housing, characterized in that: The outer casing consists of an upper outer casing (1) and a lower outer casing (2). The upper outer casing (1) has slots on both sides at the top, and the waterproof plate (4) has grooves on both sides. The slots and grooves are connected to allow the waterproof plate (4) to fit into the upper outer casing (1), thereby fixing the position of the waterproof plate (4). The lower outer casing (2) has screw holes (6) on both sides for fixing the live wire and the neutral wire. The screw holes (6) are equipped with screw hole protective caps (7). The waterproof plate (4) and the screw hole protective caps (7) can effectively prevent external water from entering. The inner wall of the display screen (10) affects the normal operation of the display screen (10). The bottom of the lower housing (2) is provided with a slot (8) for fixing the device to the guide rail. The upper housing (1) is provided with a circuit board (9). The display screen (10), indicator light (11), button (12), main chip (13), WIFI module (14), Bluetooth module (15), power chip (16), and intermediate relay (17) are installed on the circuit board (9) in sequence. The top of the indicator light (11) extends through to the top of the upper housing (1). The WIFI module (14) includes an integrated chip U3. One end of the integrated chip U3 is connected to the receiving data BluetoothRXD, the other end of the integrated chip U3 is connected to the transmitting data BluetoothTXD, one end of the integrated chip U3 is connected to the wireless interface WIFILINK, the other end of the integrated chip U3 is connected to the pin NRELOAD, one end of the integrated chip U3 is connected to the power supply +3.3V, and the other end of the integrated chip U3 is connected to the common ground terminal. The circuit board (9) includes an integrated chip U1, which includes a voltage input terminal VIN, a voltage output terminal VOUT, and a common ground terminal. One end of the integrated chip U1 is connected to a 12V power supply, and the other end of the integrated chip U1 is connected to a digital circuit VDD5. The voltage input terminal VIN is connected to the common ground terminal through a capacitor C12. One end of the voltage output terminal VOUT is connected to the common ground terminal through a capacitor C14, and the voltage output terminal VOUT and the common ground terminal are connected in parallel through a capacitor +C13. Intermediate relay (17) includes J1 and J2, J1 includes the positive power supply P+ and the negative power supply P-, and J2 includes the positive power supply P+ and the negative power supply P-. The main chip (13) includes integrated chip U2. The left and top ends of integrated chip U2 are connected to LED digital tube pins SEG13 to SEG0. The right and top ends of integrated chip U2 are connected to ground points COM0 to COM5. The bottom of integrated chip U2 is connected from right to left to zeroing IBP, digital chip IBN, changeover switch IAN, changeover switch IAP, temperature UP, reference voltage REF, ground GND, digital circuit VDD5, voltage regulator LDO3, positive digital power supply voltage DVCC and diode VDCN.

2. A remotely operable, precision metering, smart electric energy meter according to claim 1, characterized in that: The screw hole protective cap (7) is slidably connected to the inner wall of the upper outer shell (1), and the waterproof plate (4) is connected to the surface slot of the upper outer shell (1).

3. A remotely operable, precision metering, smart electric energy meter according to claim 1, characterized in that: The top of the display screen (10) extends through to the top of the upper housing (1), and the waterproof plate (4) is located on the outer surface of the display screen (10).

4. A remotely operable, precision metering, intelligent electric power meter according to claim 1, characterized in that: The top of the indicator light (11) extends to the top of the upper housing (1). The indicator light (11) is green when working normally and red when not working normally.

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