Built-in switch type Internet of Things intelligent electric meter

Abstract

The invention discloses a built-in switch type internet-of-things intelligent electric meter, and relates to the technical field of intelligent electric meters, and the built-in switch type internet-of-things intelligent electric meter comprises a main control board, a switch, a metering module, a communication module, an expansion module, a display module and a storage module which are arranged in a housing. The relay switch in the shielding cover is shielded and sealed through the shielding and sealing assembly, the probability that signal transmission errors occur in the electric meter and the element performance is reduced is reduced, and in the sealing and covering process, the gas pressure in the shielding cover is higher than the external environment pressure, so that the shielding cover generates certain expansion force outwards, and the sealing performance of the electric meter is improved. The shielding cover can effectively block electromagnetic interference, especially for high-frequency electromagnetic waves, the wavelength of the high-frequency electromagnetic waves is short, the high-frequency electromagnetic waves can be transmitted through the small gaps more easily, and the shielding effect is improved more obviously after pressurization.

Description

Technical Field

[0001] The present invention relates to the technical field of smart electric meters, and in particular to a built-in switch type Internet of Things smart electric meter. Background Art

[0002] At present, the IoT meters used in the market mainly include external relay switches and built-in relay switches. The external relay switch meters have the problems of inconvenient installation and maintenance and high cost. The built-in relay switch is located inside the meter. When the relay switch is in action, it will generate a magnetic field, which may affect the normal operation of nearby sensitive electronic components, resulting in signal transmission errors or component performance degradation. For this reason, we propose a built-in switch type IoT smart meter. Summary of the invention

[0003] The object of the present invention is to provide a built-in switch type Internet of Things smart meter to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a built-in switch type IoT smart meter, comprising a main control board, a switch, a metering module, a communication module, an expansion module, a display module and a storage module arranged inside a shell, and an RGB indicator light and a button are arranged on the front side of the shell;

[0005] The main control board is used to control the operation of the electric meter and communicate with each module to complete the basic functions of the electric meter;

[0006] The switch communicates with the main control board via a GPIO electrical signal. The switch is a relay switch, which is used to automatically disconnect the power supply when a short circuit occurs in the circuit, and disconnect the power supply when a circuit breaking instruction sent by the main station is received;

[0007] The metering module communicates with the control board via SPI / UART to calculate the user's electricity bill data;

[0008] The communication module communicates with the main control board via SPI / UART and is used for communication between the electric meter and the host, including but not limited to carrier communication, Bluetooth, WiFi, 4G / 5G;

[0009] The expansion module communicates with the main control board via SPI / UART, including but not limited to power quality analysis function and load identification module;

[0010] The display module communicates with the main control board via SPI / IIC. The display module includes a screen arranged on the front side of the housing 1 for displaying time, various information recorded by the electric meter, and various warning information such as user arrears;

[0011] The storage module communicates with the main control board via SPI / IIC and is used to store the electricity usage information calculated by the electric meter;

[0012] The RGB indicator light communicates with the main control board MCU through GPIO, and is used to indicate the working status of the meter through different colors;

[0013] The button communicates with the main control board MCU through GPIO and is used to operate and view the display content of the display screen.

[0014] Preferably, the main control board and the metering module are fixed to the bottom of the inner side of the shell by screws, the buttons and RGB indicator lights are located on both sides of the screen, the display module is above the main control board and is welded to the main control board through metal pins, the communication module and the extension module are stacked above the main control board and isolated from the main control board by a partition in the middle, the switch is placed on the front side of the main control board and fixed by screws, and a current transformer and an AC wire are installed at the bottom of the shell, and the current transformer is used to measure electrical quantity data.

[0015] Preferably, when the relay is in use, the process of tripping the relay switch due to user arrears includes the following steps:

[0016] S1: When the meter is working normally and the user has no outstanding charges, the RGB indicator lights up green;

[0017] S2: If the user is in arrears, the master station sends a tripping and power-off command;

[0018] S3: After the meter receives the command, the relay is disconnected and power supply to the user is stopped;

[0019] When the relay is in use, the relay switch closing process after the user pays the fee includes the following steps:

[0020] S1: If the user pays, the master station sends a closing command to the meter;

[0021] S2: After receiving the command, the meter controls the relay to close;

[0022] When the meter is in use, the normal recording of the meter power includes the following steps:

[0023] S1: The electric meter records the user's electricity consumption data regularly;

[0024] S2: If the meter receives the reading instruction from the master station, it will report the user's electricity consumption information;

[0025] S3: After receiving the user's electricity consumption data, the master station records and stores it;

[0026] When the meter is in use, the abnormal situation handling of the meter includes the following steps:

[0027] S1: If an abnormal situation occurs during the operation of the meter, such as abnormal measurement data, abnormal status of a device, etc., the relevant abnormal information is recorded;

[0028] S2: event information reported by the meter;

[0029] S3: After receiving the data, the master station records and processes the abnormal information.

[0030] Preferably, it further comprises a shielding cover fixed on the main control board, wherein the relay switch is located inside the shielding cover after being installed on the main control board, and a shielding sealing component for shielding and sealing the relay switch after installation is provided on the shielding cover;

[0031] The shielding and sealing assembly includes a circular frame arranged on the front side of the shielding cover, the circular frame and the shielding cover are connected by an accordion sleeve, a connecting assembly for connecting to the circular frame is arranged inside the shielding cover, a sealing cover plate for sealing against the circular frame is arranged on the outside of the shielding cover, a rotating assembly for rotatably connecting to the sealing cover plate is arranged on the outside of the shielding cover, and a boosting assembly for boosting the pressure during the closing and sealing process of the shielding cover is arranged on the shielding cover.

[0032] Preferably, two groups of rotating components are symmetrically arranged on both sides of the shielding cover, and the rotating components include a mounting shaft rotatably connected to the outside of the shielding cover, the mounting shaft is fixed to a connecting block, and an elastic component for elastically connecting the sealing cover is arranged between the connecting block and the sealing cover.

[0033] Preferably, the elastic component includes multiple groups of sleeves fixed on the connecting block, the sleeves are slidably connected with a sliding rod, one end of the sliding rod is fixed to the sealing cover plate, and the outer side of the sleeve is sleeved with a first spring, and the two ends of the first spring are respectively connected to the sealing cover plate and the connecting block.

[0034] Preferably, two groups of the connecting components are symmetrically arranged inside the shielding cover, and the connecting components include a connecting plate fixed inside the shielding cover, a connecting rod is slidably connected to the connecting plate, a fixing block is fixed to one end of the connecting rod, the fixing block is fixed to the inner side of the circular frame, and a second spring is sleeved on the outer side of the connecting rod.

[0035] Preferably, the boosting assembly is provided with two groups, and the two groups of boosting assemblies are respectively arranged in one-to-one correspondence with the two groups of connecting assemblies. The boosting assembly includes a piston cylinder fixed to the outside of the shielding cover, the piston cylinder is communicated with the interior of the shielding cover, a piston plate is slidably connected to the piston cylinder, and a pulling assembly for pulling the piston plate is arranged inside the shielding cover.

[0036] Preferably, the pulling assembly includes a strip plate arranged inside the shielding cover, the strip plate is connected and fixed to the piston plate by a mounting rod, a plurality of groups of T-rods are slidably connected to the strip plate, one end of each group of T-rods is fixed inside the shielding cover, and a transmission assembly for transmitting the strip plate is arranged inside the shielding cover.

[0037] Preferably, the transmission assembly comprises a transmission plate fixed to the end of the connecting rod, the transmission plate is provided with an oblique groove, a transmission pin is slidably connected to the oblique groove, and one end of the transmission pin is fixed to the strip plate.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The electric meter relay switch of the present invention is built into the shell. Through the cooperation between the relay switch and the main control board, switch, metering module, communication module, expansion module, display module, storage module, RGB indicator light, button and current transformer, automatic tripping, automatic closing, automatic power consumption recording and abnormal power consumption processing of the electric meter can be realized, and intelligent operation and use of the electric meter in the form of a material network can be realized.

[0040] After the built-in relay switch of the present invention is installed on the main control board, the relay switch inside the shielding cover is shielded and sealed through the shielding sealing component to prevent the relay switch from generating a magnetic field when it is in action and affecting the normal operation of nearby sensitive electronic components, thereby reducing the probability of signal transmission errors and component performance degradation inside the electric meter. In addition, during the sealing and closing process, the gas pressure inside the shielding cover is made higher than the external environmental pressure, which will cause the shielding cover to generate a certain outward expansion force, which helps to reduce the tiny gaps that may exist in the shielding cover itself. By reducing the gaps through pressurization, electromagnetic interference can be effectively blocked, especially for high-frequency electromagnetic waves, which have a shorter wavelength and are more easily transmitted through small gaps. The shielding effect is more significantly improved after pressurization. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of the electric meter of the present invention;

[0042] Figure 2 It is a schematic diagram of the layout of the internal components of the electric meter of the present invention;

[0043] Figure 3 It is a relay tripping flow chart of the present invention;

[0044] Figure 4 It is a relay closing flow chart of the present invention;

[0045] Figure 5 It is a flow chart of electricity consumption data recording of the present invention;

[0046] Figure 6It is a flow chart of the abnormal situation processing of the electric meter of the present invention;

[0047] Figure 7 A schematic diagram of the position relationship between the shielding cover and the relay switch of the present invention;

[0048] Figure 8 It is a schematic diagram of the structure of the shielding and sealing assembly of the present invention;

[0049] Fig. 9 It is a schematic diagram of the structure of the rotating assembly and the elastic assembly of the present invention;

[0050] Fig.10 It is a schematic diagram of the sealing cover plate of the present invention before covering the shielding cover;

[0051] Fig.11 It is a schematic diagram of the sealing cover plate of the present invention after covering the shielding cover;

[0052] Fig.12 It is a schematic diagram of the structure of the connection assembly of the present invention;

[0053] Fig.13 It is a schematic diagram of the structure of the boosting assembly, pulling assembly and transmission assembly of the present invention.

[0054] In the figure: 1, shell; 2, shielding cover; 301, circular frame; 302, accordion sleeve; 303, sealing cover plate; 401, mounting shaft; 402, connecting block; 501, sleeve; 502, slide rod; 503, first spring; 601, connecting plate; 602, connecting rod; 603, fixing block; 604, second spring; 701, piston cylinder; 702, piston plate; 801, strip plate; 802, mounting rod; 803, T-bar; 901, transmission plate; 902, inclined groove; 903, transmission pin. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Example 1

[0057] See also Figure 1-Figure 13 , a built-in switch type IoT smart meter shown in the figure includes a main control board, a switch, a metering module, a communication module, an expansion module, a display module and a storage module arranged inside a housing 1, and an RGB indicator light and a button are arranged on the front side of the housing 1;

[0058] The main control board is used to control the operation of the meter and communicate with each module to complete the basic functions of the meter;

[0059] The switch communicates with the main control board through GPIO electrical signals. The switch is a relay switch, which is used to automatically disconnect the power supply when a short circuit occurs in the circuit, and disconnect the power supply when receiving a circuit-breaking command sent by the master station;

[0060] The metering module communicates with the control board via SPI / UART to calculate the user's electricity bill data;

[0061] The communication module communicates with the main control board through SPI / UART and is used for communication between the meter and the host, including but not limited to carrier communication, Bluetooth, WiFi, 4G / 5G;

[0062] The expansion module communicates with the main control board via SPI / UART, including but not limited to power quality analysis function and load identification module;

[0063] The display module communicates with the main control board via SPI / IIC. The display module includes a screen arranged on the front side of the housing 1, which is used to display the time, various information recorded by the electric meter, and various warning information such as user arrears;

[0064] The storage module communicates with the main control board via SPI / IIC and is used to store the electricity usage information calculated by the meter;

[0065] The RGB indicator light communicates with the main control board MCU through GPIO, and uses different colors to indicate the working status of the meter;

[0066] The buttons communicate with the main control board MCU through GPIO and are used to operate and view the display content.

[0067] Preferably, the main control board and the metering module are fixed to the bottom of the inner side of the shell 1 by screws, the buttons and RGB indicator lights are located on both sides of the screen, the display module is above the main control board and is welded to the main control board through metal pins, the communication module and the extension module are stacked above the main control board and isolated from the main control board by a partition in the middle, the switch is placed on the front side of the main control board and fixed by screws, and a current transformer and an AC wire are installed at the bottom of the shell 1, and the current transformer is used to measure electrical quantity data.

[0068] Preferably, when the relay is in use, the process of tripping the relay switch due to user arrears includes the following steps:

[0069] S1: When the meter is working normally and the user has no outstanding charges, the RGB indicator lights up green;

[0070] S2: If the user is in arrears, the master station sends a tripping and power-off command;

[0071] S3: After the meter receives the command, the relay is disconnected and power supply to the user is stopped;

[0072] When the relay is in use, the relay switch closing process after the user pays the fee includes the following steps:

[0073] S1: If the user pays, the master station sends a closing command to the meter;

[0074] S2: After receiving the command, the meter controls the relay to close;

[0075] When the meter is in use, the normal recording of the meter power includes the following steps:

[0076] S1: The electric meter records the user's electricity consumption data regularly;

[0077] S2: If the meter receives the reading instruction from the master station, it will report the user's electricity consumption information;

[0078] S3: After receiving the user's electricity consumption data, the master station records and stores it;

[0079] When the meter is in use, the abnormal situation handling of the meter includes the following steps:

[0080] S1: If an abnormal situation occurs during the operation of the meter, such as abnormal measurement data, abnormal status of a device, etc., the relevant abnormal information is recorded;

[0081] S2: event information reported by the meter;

[0082] S3: After receiving the data, the master station records and processes the abnormal information;

[0083] It should be noted here that the relay switch of the electric meter is built into the shell 1. Through the cooperation of the relay switch with the main control board, switch, metering module, communication module, expansion module, display module, storage module, RGB indicator light, button and current transformer, the electric meter can be automatically tripped, automatically closed, automatically recorded and abnormally processed, and the intelligent operation and use of the electric meter in the form of a material network can be realized.

[0084] Preferably, it also includes a shielding cover 2 fixed on the main control board, the relay switch is located inside the shielding cover 2 after being installed on the main control board, and a shielding sealing component for shielding and sealing the relay switch after installation is provided on the shielding cover 2;

[0085] The shielding sealing component includes a circular frame 301 arranged on the front side of the shielding cover 2, the circular frame 301 and the shielding cover 2 are connected through an accordion sleeve 302, a connecting component for connecting the circular frame 301 is arranged inside the shielding cover 2, a sealing cover plate 303 for sealing against the circular frame 301 is arranged on the outside of the shielding cover 2, a rotating component for rotatably connecting the sealing cover plate 303 is arranged on the outside of the shielding cover 2, and a pressurizing component for pressurizing the shielding cover 2 during the sealing process;

[0086] It should be noted here that: after the built-in relay switch is installed on the main control board, the relay switch inside the shielding cover 2 is shielded and sealed through the shielding sealing component to prevent the relay switch from generating a magnetic field when it is in action and affecting the normal operation of nearby sensitive electronic components, thereby reducing the probability of signal transmission errors and component performance degradation inside the meter. In the process of sealing and closing the cover, the gas pressure inside the shielding cover 2 is higher than the external environmental pressure, which will cause the shielding cover 2 to generate a certain outward expansion force, which helps to reduce the tiny gaps that may exist in the shielding cover 2 itself. By reducing the gaps through pressurization, electromagnetic interference can be effectively blocked, especially for high-frequency electromagnetic waves, which have a shorter wavelength and are more easily transmitted through small gaps. The shielding effect is more significantly improved after pressurization.

[0087] Preferably, two groups of rotating components are symmetrically arranged on both sides of the shielding cover 2, and the rotating components include a mounting shaft 401 rotatably connected to the outer side of the shielding cover 2, and the mounting shaft 401 is fixed to a connecting block 402, and an elastic component for elastically connecting the sealing cover plate 303 is arranged between the connecting block 402 and the sealing cover plate 303;

[0088] It should be noted here that: the connection between the mounting shaft 401, the connecting block 402 and the elastic component facilitates the rotatable connection of the sealing cover plate 303.

[0089] Preferably, the elastic component includes a plurality of sleeves 501 fixed on the connecting block 402, a sliding rod 502 is slidably connected to the sleeve 501, one end of the sliding rod 502 is fixed to the sealing cover plate 303, a first spring 503 is sleeved on the outer side of the sleeve 501, and both ends of the first spring 503 are respectively connected to the sealing cover plate 303 and the connecting block 402;

[0090] It should be noted here that: the sleeve 501 and the slide rod 502 facilitate the telescopic connection between the sealing cover plate 303 and the connecting block 402, and the first spring 503 facilitates the elastic pulling of the sealing cover plate 303.

[0091] Preferably, two groups of connection components are symmetrically arranged inside the shielding cover 2, and the connection components include a connection plate 601 fixed inside the shielding cover 2, a connection rod 602 is slidably connected to the connection plate 601, a fixing block 603 is fixed to one end of the connection rod 602, the fixing block 603 is fixed to the inner side of the circular frame 301, and a second spring 604 is sleeved on the outer side of the connection rod 602;

[0092] It should be noted that the connecting plate 601 , the connecting rod 602 and the fixing block 603 facilitate the sliding connection of the circular frame 301 , and the second spring 604 facilitates the reset movement of the circular frame 301 after the movement.

[0093] Preferably, two groups of boosting components are provided, and the two groups of boosting components are respectively provided in one-to-one correspondence with the two groups of connecting components, the boosting components include a piston cylinder 701 fixed to the outside of the shielding cover 2, the piston cylinder 701 is communicated with the inside of the shielding cover 2, a piston plate 702 is slidably connected to the piston cylinder 701, and a pulling component for pulling the piston plate 702 is provided inside the shielding cover 2;

[0094] It should be noted here that: through transmission, the strip plate 801 is forced to move away from the piston cylinder 701. During the movement of the strip plate 801, the piston plate 702 is pulled on the piston cylinder 701 by the mounting rod 802 to move toward the inside of the shielding cover 2. Since the piston cylinder 701 is connected to the inside of the shielding cover 2, the movement of the piston plate 702 reduces the space between the shielding cover 2 and the piston cylinder 701, and the inside of the shielding cover 2 is pressurized. When the inside of the shielding cover 2 is pressurized, the internal gas pressure is higher than the external environmental pressure, which will cause a certain expansion force to the outside of the shielding cover 2, which helps to reduce the tiny gaps that may exist in the shielding cover 2 itself. Reducing the gaps by pressurizing can effectively block electromagnetic interference, especially for high-frequency electromagnetic waves, which have shorter wavelengths and are more easily transmitted through small gaps. The shielding effect is more significantly improved after pressurization.

[0095] Preferably, the pulling assembly includes a strip plate 801 disposed inside the shielding cover 2, the strip plate 801 and the piston plate 702 are connected and fixed by a mounting rod 802, a plurality of groups of T-shaped rods 803 are slidably connected to the strip plate 801, one end of each group of T-shaped rods 803 is fixed inside the shielding cover 2, and a transmission assembly for transmitting the strip plate 801 is disposed inside the shielding cover 2; the transmission assembly includes a transmission plate 901 fixed to the end of the connecting rod 602, an inclined groove 902 is provided on the transmission plate 901, a transmission pin 903 is slidably connected to the inclined groove 902, and one end of the transmission pin 903 is fixed to the strip plate 801;

[0096] It should be noted here that: during the movement of the transmission plate 901, the interaction between the inclined groove 902 and the transmission pin 903 drives the strip plate 801 to move under force. During the movement of the strip plate 801, the sliding guiding effect of multiple groups of T-bars 803 causes the strip plate 801 to move away from the piston cylinder 701 under force.

[0097] In this scheme: a built-in switch type IoT smart meter includes the following steps:

[0098] The relay switch of the electric meter is built into the housing 1. Through the cooperation between the relay switch and the main control board, the switch, the metering module, the communication module, the expansion module, the display module, the storage module, the RGB indicator light, the button and the current transformer, the automatic tripping, automatic closing, automatic power consumption recording and abnormal power consumption processing of the electric meter can be realized, and the intelligent operation and use of the electric meter in the form of a material network can be realized;

[0099] After the built-in relay switch is installed on the main control board, the relay switch is inside the shielding cover 2. The sealing cover 303 is rotatably connected to the sealing cover 303 by the rotating assembly and the sealing cover 303 is elastically pulled by the elastic assembly during the rotation process, so that the sealing cover 303 is abutted against the upper end of the circular frame 301 (see FIG. Fig.11 The sealing cover plate 303 and the circular frame 301 counteract each other to shield and seal the relay switch inside the shielding cover 2, thereby preventing the relay switch from generating a magnetic field when in operation and affecting the normal operation of nearby sensitive electronic components, thereby reducing the probability of signal transmission errors and component performance degradation inside the electric meter;

[0100] In the process of the sealing cover plate 303 and the upper end of the circular frame 301 being against each other, the sealing cover plate 303 and the circular frame 301 against each other are pulled by the elastic force of the elastic force, so that the sealing cover plate 303 and the circular frame 301 against each other are retracted toward the shielding cover 2. In the process of retraction, the sealing cover plate 303 and the circular frame 301 are kept against each other by the elastic force pulling action of the elastic component on the sealing cover plate 303 and the reset pushing action of the second spring 604 on the connecting component on the retracted circular frame 301, so as to ensure the effect of sealing and shielding the inside of the shielding cover 2. In the process of pushing the circular frame 301 to move against the shielding cover 2, the movement of the circular frame 301 and the connection action of the fixed block 603 push the connecting rod 602 downward on the connecting plate 601. In the process of the movement of the connecting rod 602, the transmission plate 901 is driven to move synchronously. In the process of the movement of the transmission plate 901, the interaction between the inclined groove 902 and the transmission pin 903 drives the driving bar 602 to move downward on the connecting plate 601. The strip plate 801 is forced to move. During the movement of the strip plate 801, the sliding guiding effect of the multiple groups of T-bars 803 causes the strip plate 801 to be forced to move away from the piston cylinder 701. During the movement of the strip plate 801, the piston plate 702 is pulled on the piston cylinder 701 by the installation rod 802 to move toward the inside of the shielding cover 2. Since the piston cylinder 701 is connected to the inside of the shielding cover 2, the movement of the piston plate 702 reduces the space between the shielding cover 2 and the piston cylinder 701, and the inside of the shielding cover 2 is pressurized. When the inside of the shielding cover 2 is pressurized, the internal gas pressure is higher than the external environmental pressure, which will cause the shielding cover 2 to generate a certain expansion force outward, which helps to reduce the tiny gaps that may exist in the shielding cover 2 itself. Reducing the gaps by pressurizing can effectively block electromagnetic interference, especially for high-frequency electromagnetic waves, which have a shorter wavelength and are more easily transmitted through small gaps. The shielding effect is more significantly improved after pressurization.

[0101] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0102] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A built-in switch type IoT smart meter, comprising a main control board, a switch, a metering module, a communication module, an expansion module, a display module and a storage module arranged inside a housing 1, and an RGB indicator light and a button are arranged on the front side of the housing 1; The main control board is used to control the operation of the electric meter and communicate with each module to complete the basic functions of the electric meter; The switch communicates with the main control board via a GPIO electrical signal. The switch is a relay switch, which is used to automatically disconnect the power supply when a short circuit occurs in the circuit, and disconnect the power supply when a circuit breaking instruction sent by the main station is received; The metering module communicates with the control board via SPI / UART to calculate the user's electricity bill data; The communication module communicates with the main control board via SPI / UART and is used for communication between the electric meter and the host, including but not limited to carrier communication, Bluetooth, WiFi, 4G / 5G; The expansion module communicates with the main control board via SPI / UART, including but not limited to power quality analysis function and load identification module; The display module communicates with the main control board via SPI / IIC. The display module includes a screen arranged on the front side of the housing 1 for displaying time, various information recorded by the electric meter, and various warning information such as user arrears; The storage module communicates with the main control board via SPI / IIC and is used to store the electricity usage information calculated by the electric meter; The RGB indicator light communicates with the main control board MCU through GPIO, and is used to indicate the working status of the meter through different colors; The button communicates with the main control board MCU through GPIO and is used to operate and view the display content of the display screen.

2. According to claim 1, a built-in switch type IoT smart meter is characterized by: The main control board and the metering module are fixed to the bottom of the inner side of the shell 1 by screws, the buttons and RGB indicator lights are located on both sides of the screen, the display module is located above the main control board and is welded to the main control board through metal pins, the communication module and the expansion module are stacked on top of the main control board and isolated from the main control board by a partition in the middle, the switch is placed on the front side of the main control board and fixed by screws, and a current transformer and an AC wire are installed at the bottom of the shell 1, and the current transformer is used to measure electrical quantity data.

3. A built-in switch type IoT smart meter according to claim 2, characterized in that: When the relay is in use, the process of tripping the relay switch due to user arrears includes the following steps: S1: When the meter is working normally and the user has no outstanding charges, the RGB indicator lights up green; S2: If the user is in arrears, the master station sends a tripping and power-off command; S3: After the meter receives the command, the relay is disconnected and power supply to the user is stopped; When the relay is in use, the relay switch closing process after the user pays the fee includes the following steps: S1: If the user pays, the master station sends a closing command to the meter; S2: After receiving the command, the meter controls the relay to close; When the meter is in use, the normal recording of the meter power includes the following steps: S1: The electric meter records the user's electricity consumption data regularly; S2: If the meter receives the reading instruction from the master station, it will report the user's electricity consumption information; S3: After receiving the user's electricity consumption data, the master station records and stores it; When the meter is in use, the abnormal situation handling of the meter includes the following steps: S1: If an abnormal situation occurs during the operation of the meter, such as abnormal measurement data, abnormal status of a device, etc., the relevant abnormal information is recorded; S2: event information reported by the meter; S3: After receiving the data, the master station records and processes the abnormal information.

4. The built-in switch type IoT smart meter according to claim 3, characterized in that: It also includes a shielding cover (2) fixed on the main control board, the relay switch is located inside the shielding cover (2) after being installed on the main control board, and the shielding cover (2) is provided with a shielding sealing component for shielding and sealing the relay switch after installation; The shielding sealing component includes a circular frame (301) arranged on the front side of the shielding cover (2), the circular frame (301) and the shielding cover (2) are connected via an accordion sleeve (302), a connecting component for connecting to the circular frame (301) is arranged inside the shielding cover (2), a sealing cover plate (303) for sealing against the circular frame (301) is arranged on the outside of the shielding cover (2), a rotating component for rotatably connecting to the sealing cover plate (303) is arranged on the outside of the shielding cover (2), and a pressurizing component for increasing the pressure during the closing and sealing process of the shielding cover (2) is arranged on the shielding cover (2).

5. The built-in switch type IoT smart meter according to claim 1, characterized in that: The rotating assembly is symmetrically arranged in two groups on both sides of the shielding cover (2), and the rotating assembly includes a mounting shaft (401) rotatably connected to the outside of the shielding cover (2), and the mounting shaft (401) is fixed to a connecting block (402). An elastic assembly for elastically connecting the sealing cover (303) is arranged between the connecting block (402) and the sealing cover (303).

6. The built-in switch type IoT smart meter according to claim 5, characterized in that: The elastic component comprises a plurality of sleeves (501) fixed on a connecting block (402), a sliding rod (502) being slidably connected to the sleeve (501), one end of the sliding rod (502) being fixed to a sealing cover plate (303), a first spring (503) being sleeved on the outer side of the sleeve (501), and two ends of the first spring (503) being respectively connected to the sealing cover plate (303) and the connecting block (402).

7. The built-in switch type IoT smart meter according to claim 4, characterized in that: The connection components are symmetrically arranged in two groups inside the shielding cover (2), and the connection components include a connection plate (601) fixed inside the shielding cover (2), a connection rod (602) is slidably connected to the connection plate (601), a fixing block (603) is fixed to one end of the connection rod (602), the fixing block (603) is fixed to the inner side of the circular frame (301), and a second spring (604) is sleeved on the outer side of the connection rod (602).

8. The built-in switch type IoT smart meter according to claim 7, characterized in that: The boosting components are provided in two groups, and the two groups of boosting components are respectively provided in one-to-one correspondence with the two groups of connecting components. The boosting components include a piston cylinder (701) fixed to the outside of the shielding cover (2), the piston cylinder (701) is communicated with the inside of the shielding cover (2), a piston plate (702) is slidably connected to the piston cylinder (701), and a pulling component for pulling the piston plate (702) is provided inside the shielding cover (2).

9. The built-in switch type IoT smart meter according to claim 8, characterized in that: The pulling assembly comprises a strip plate (801) arranged inside the shielding cover (2); the strip plate (801) is connected and fixed to the piston plate (702) via a mounting rod (802); a plurality of groups of T-shaped rods (803) are slidably connected to the strip plate (801); one end of each group of T-shaped rods (803) is fixed inside the shielding cover (2); and a transmission assembly for transmitting the strip plate (801) is arranged inside the shielding cover (2).

10. The built-in switch type IoT smart meter according to claim 9, characterized in that: The transmission assembly comprises a transmission plate (901) fixed to the end of the connecting rod (602), the transmission plate (901) is provided with an inclined groove (902), a transmission pin (903) is slidably connected to the inclined groove (902), and one end of the transmission pin (903) is fixed to the strip plate (801).

Images