CN210222116U - Formula wifi metering module cut straightly - Google Patents
Formula wifi metering module cut straightly Download PDFInfo
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- CN210222116U CN210222116U CN201920637583.7U CN201920637583U CN210222116U CN 210222116 U CN210222116 U CN 210222116U CN 201920637583 U CN201920637583 U CN 201920637583U CN 210222116 U CN210222116 U CN 210222116U
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Abstract
The utility model relates to a wifi module, concretely relates to formula of cuting straightly wifi metering module, including the PCB board, be equipped with core zone, antenna district and metering area on the PCB board, core zone includes core processing chip and the peripheral circuit who links to each other with core processing chip, be fixed with the antenna that is used for radiating radio frequency signal that links to each other with core processing chip on the antenna district, metering area is fixed with the metering chip that is used for reading alternating voltage, electric current, power and carrying out the electric quantity statistics that links to each other with core processing chip, dispose the pin of being connected with core processing chip data interface on core zone, metering area border, formula of cuting straightly wifi metering module is pegged graft through the pin with the main control board of formula of cuting straightly wifi metering module equipment; the utility model provides a technical scheme can effectively overcome the PCB board and the main control board of wifi module that prior art exists and be connected the relatively poor, the paster module occupation space is big, the wifi module does not possess the defect of measurement function.
Description
Technical Field
The invention relates to a wifi module, in particular to a direct plug-in type wifi metering module.
Background
Along with the continuous development of intelligent communication technology, more and more smart machine begins to be equipped with wifi control module, makes the user carry out wireless network intelligent control and measures statistics to smart machine's use voltage, electric current, power and power consumption. Meanwhile, a wifi module and a metering partial circuit are embedded into a main control board of the original intelligent device, and the requirements of various Internet of things applications such as an intelligent power grid, building automation, security protection, intelligent home and remote medical treatment can be met.
But the present wifi module adopts the mode of welding plug binding post on the PCB board more, links together the PCB board of wifi module and main control board through binding post, connects stably in order to guarantee simultaneously, uses the screw more to fix the wifi module on the main control board. Although the wifi module can be fixed in this way, the wifi module is usually small in size, and the wiring terminal of the wifi module also needs to be selected to be small in size, so that the difficulty of welding operation is increased, and mass production is not facilitated. Meanwhile, as the wiring terminal needs manual operations such as plugging and unplugging during assembly, the instability of the wifi module is increased to a certain extent, the user experience is reduced, and the common wifi module does not have the function of reading the statistics of alternating voltage, current, power and electric quantity, so that the power utilization statistics of the electrified equipment cannot be carried out.
The technical scheme is designed aiming at the defects that in the prior art, the instability of the wifi module is increased in a mode that a wiring terminal is welded on a PCB of the wifi module and connected with a main control board, the occupied space of a patch module is large, and a common wifi module does not have a metering function, so that the user experience is reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides a direct-insertion type wifi metering module which can effectively overcome the defects in the prior art that the connection stability of a PCB (printed circuit board) and a main control board of the wifi module is poor, the occupied space of a patch module is large, and the wifi module does not have a metering function.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a direct plug-in type wifi metering module comprises a PCB, wherein a core area, an antenna area and a metering area are arranged on the PCB, the core area comprises a core processing chip and a peripheral circuit connected with the core processing chip, an antenna which is connected with the core processing chip and used for radiating radio frequency signals is fixed on the antenna area, a metering chip which is connected with the core processing chip and used for reading alternating voltage, current and power and carrying out electric quantity statistics is fixed on the metering area, pins connected with a data interface of the core processing chip are arranged on the edges of the core area and the metering area, and the direct plug-in type wifi metering module is plugged with a main control board applying the direct plug-in type wifi metering module device through the pins;
the pins comprise VDD33, IO4, IO2, URXD, RST, TOUT, V1N, V1P, L, IO0, IO16, IO13, UTXD, IO15 and GND;
the data interface of the core processing chip comprises a power supply interface, a grounding interface, an SPI interface, a PWM interface, an IR interface, an ADC interface, an I2C interface, a UART interface, an I2S interface, a GPIO interface, a reset pin, a measuring current sampling differential signal input end and a measuring voltage signal sampling input end.
Preferably, the pins are arranged in order on the front and back sides of the core region and the metering region.
Preferably, the peripheral circuit includes a filter circuit, a crystal oscillator circuit, a serial communication interface circuit, and a power statistics interface circuit.
Preferably, the antenna is an on-board antenna.
Preferably, the core processing chip is an ESP8266 chip.
Preferably, the core processing chip is connected with an indicator light, and the indicator light is a patch type light emitting diode.
Preferably, the direct plug-in wifi metering module is welded on the main control board.
Preferably, 5mm of the left and right sides of the antenna area of the direct plug-in wifi metering module is kept away.
Preferably, the formula wifi measurement module's that cut straightly antenna district edge follows the flange setting of main control board, just the main control board with the antenna district left and right sides 5mm is regional to keep away the sky.
(III) advantageous effects
Compared with the prior art, the direct-insertion type wifi metering module provided by the invention reads alternating-current voltage, current and power and carries out electric quantity statistics through the metering chip which is arranged in the metering area and connected with the core processing chip; through in nuclear core district, a plurality of pins that are connected with the core processing chip that measure district border configuration and the sampling input pin of being connected with the measurement chip for cut straightly formula wifi metering module can be through the pin grafting on the main control board, and welded fastening is on the main control board, carry out data exchange with the main control board, effectively reduced the instability that the connected mode through binding post brought for wifi metering module, improved user's experience degree, and adopt the mode of cut straightly, can effectively reduce the space that the main control board occupy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic front view of a PCB board according to the present invention;
FIG. 2 is a schematic diagram of a back side structure of a PCB board according to the present invention;
FIG. 3 is a schematic diagram of a front pin of a PCB board according to the present invention;
FIG. 4 is a schematic diagram of a PCB back pin of the present invention;
FIG. 5 is a minimal system diagram of the present invention;
in the figure:
101. a core region; 102. an antenna area; 103. a metering zone; 104. a core processing chip; 105. a metering chip; 106. an antenna; 107. a peripheral circuit; 108. a pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An in-line wifi metering module is shown in fig. 1 to 4, and comprises a PCB, a core area 101, an antenna area 102 and a metering area 103 are arranged on the PCB, the core area 101 comprises a core processing chip 104 and a peripheral circuit 107 connected with the core processing chip 104, an antenna 106 connected with the core processing chip 104 and used for radiating radio frequency signals is fixed on the antenna area 102, a metering chip 105 connected with the core processing chip 104 and used for reading alternating voltage, current, power and performing electric quantity statistics is fixed on the metering area 103, pins 108 connected with a data interface of the core processing chip 104 are arranged on the edges of the core area 101 and the metering area 103, and the in-line wifi metering module is plugged with a main control board applying the in-line wifi metering module device through the pins 108;
the data interface of the core processing chip 104 includes a power interface, a ground interface, an SPI interface, a PWM interface, an IR interface, an ADC interface, an I2C interface, a UART interface, an I2S interface, a GPIO interface, a reset pin, a measured current sampling differential signal input, and a measured voltage signal sampling input.
The pins 108 are arranged in order on the front and back sides of the core region 101 and the metering region 103.
The peripheral circuit 107 includes a filter circuit, a crystal oscillator circuit, a serial communication interface circuit, and a power statistics interface circuit.
The core processing chip 104 is connected with an indicator light, and the indicator light is a patch type light emitting diode.
The formula wifi measurement module that cut straightly welds on the main control board.
5mm area keep away the sky in the antenna area 102 left and right sides of formula wifi measurement module cut straightly.
The edge of the antenna area 102 of the direct-plug-in type wifi metering module is arranged along the plate edge of the main control plate, and the main control plate and the 5mm area on the left side and the right side of the antenna area 102 are kept away.
As shown in fig. 3 and 4, a plurality of pins 108 are arranged in order on the front and back sides of the core region 101 and the metering region 103. It should be understood that the arrangement of the pins 108 in fig. 3 and fig. 4 is only a preferred arrangement provided by the embodiment of the present invention, in other embodiments, the plurality of pins 108 may also be arranged in a non-uniform arrangement, or the pins 108 may also be arranged uniformly at the edges of two sides, or arranged non-uniformly, and the like, and the specific arrangement of the pins 108 is subject to the practical use case, which is not limited by the embodiment of the present invention.
During practical application, the direct-insert wifi metering module is plugged with a main control board applying the direct-insert wifi metering module, and in order to facilitate data exchange, a data interface of the core processing chip 104 is usually connected with the corresponding pin 108. Wherein, data interface includes: an SPI (Serial Peripheral Interface), a PWM (Pulse Width Modulation) Interface, an IR (Infrared Remote Control) Interface, an ADC (Analog to digital converter) Interface, an I2C (Inter-Integrated Circuit) Interface, a UART (Universal Asynchronous Receiver/Transmitter) Interface, an I2S (Inter-IC Sound) Interface, a GPIO Interface, a reset pin, a measurement current sampling differential signal input terminal (V1N, V1 zero line 1P input/output), a measurement voltage signal sampling input terminal (L fire wire input terminal), a power Interface, and a ground Interface.
The corresponding relationship between the data interface of the core processing chip 104 and the pin 108 connection is shown in the following table:
in this embodiment, the core processing chip 104 is preferably an ESP8266 chip, which is an ultra-low power consumption 32-bit micro MCU with a 16-bit compact mode, has a dominant frequency supporting 80MHz and 160MHz, and can integrate an onboard antenna, so that the direct-insertion wifi metering module according to the embodiment of the present invention supports a standard IEEE protocol and a complete TCP/IP protocol, and a user can add a networking function to an existing smart device and construct an independent network controller using the direct-insertion wifi metering module.
Each path of pin of the ESP8266 chip, which is connected with 3.3V voltage, is provided with a filter circuit, and the filter circuit is formed by grounding a capacitor C3, a capacitor C5, a capacitor C6 and a capacitor C12 respectively. Furthermore, a filter circuit connected with the antenna, which is composed of a capacitor C7, an inductor L1 and an inductor L2, is arranged on a path between the antenna and the ESP8266 chip.
The crystal oscillator circuit is composed of a crystal oscillator chip X1, a capacitor C1 and a capacitor C2. The model parameter of the crystal oscillator chip X1 may be selected according to actual conditions, which is not limited in this embodiment of the present invention.
The serial communication interface circuit comprises an SPI FLASH interface Q3 and a circuit for connecting a Q3 interface with an ESP8266 chip.
The electric quantity statistics interface circuit is composed of a metering chip U4, a power supply filter capacitor C8, a circuit sampling alloy resistor R15, a resistor R13, a resistor R18, a capacitor C9, a capacitor C10, a voltage sampling resistor R20, a resistor R21, a resistor R19, a capacitor C4, a data reading pull-up resistor R4, a resistor R11, a resistor R12, a series resistor R14, a resistor R16 and a resistor R17.
The direct plug-in wifi metering module further comprises an indicator light connected with the core processing chip 104, and the indicator light is preferably a patch type light emitting diode and is used for indicating the running state of the wifi metering module. And one end of the light-emitting diode D1 is connected with a 3.3V power supply through a resistor R1, and the other end of the light-emitting diode D1 is connected with an ESP8266 chip.
As shown in fig. 5, an embodiment of the present invention further provides a minimum system schematic diagram of a direct plug-in wifi metering module, which includes a VDD33 pin connected to a 3.3V power supply, a GND pin grounded, and a maximum output current of an IO interface of the wifi metering module defined as 12mA, and when a metering function needs to be supported, V1N, V1P, and L need to be connected.
Preferably, the whole size of above-mentioned formula wifi measurement module that cut straightly can set up according to the actual use condition, for example whole length 27.9mm, antenna area account for 7.2mm, and 18.5mm wide, thickness 1 mm. The size of the PCB of each direct plug-in wifi metering module can be set according to the requirement, which is not limited in the embodiment of the present invention.
This formula wifi measurement module cut straightly is connected with smart machine's main control board for provide networking function and measurement statistics function for smart machine. During actual use, a plurality of pins 108 that cut straightly formula wifi metering module through setting up insert and weld on the main control board of smart machine.
The embodiment of the invention provides a setting mode of a direct-insert type wifi metering module on a main control board, and the antenna area 102 of the wifi metering module is kept away from the space in the area of 5mm on the left side and the right side, so that the intelligent equipment can obtain the best radio frequency performance.
The direct-insertion type wifi metering module provided by the invention reads alternating-current voltage, current and power and performs electric quantity statistics through the metering chip which is arranged in the metering area and connected with the core processing chip; through in nuclear core district, a plurality of pins that are connected with the core processing chip that measure district border configuration and the sampling input pin of being connected with the measurement chip for cut straightly formula wifi metering module can be through the pin grafting on the main control board, and welded fastening is on the main control board, carry out data exchange with the main control board, effectively reduced the instability that the connected mode through binding post brought for wifi metering module, improved user's experience degree, and adopt the mode of cut straightly, can effectively reduce the space that the main control board occupy.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (9)
1. The utility model provides a formula wifi measurement module cut straightly which characterized in that: comprises a PCB board, a core area (101), an antenna area (102) and a metering area (103) are arranged on the PCB board, the core area (101) comprises a core processing chip (104) and peripheral circuitry (107) connected to the core processing chip (104), an antenna (106) connected with the core processing chip (104) and used for radiating radio frequency signals is fixed on the antenna area (102), a metering chip (105) which is connected with the core processing chip (104) and is used for reading alternating voltage, current, power and carrying out electric quantity statistics is fixed on the metering area (103), pins (108) connected with the data interface of the core processing chip (104) are arranged on the edges of the core area (101) and the metering area (103), the direct plug-in type wifi metering module is plugged with a main control board applying the direct plug-in type wifi metering module equipment through the pin (108);
the pins (108) comprise VDD33, IO4, IO2, URXD, RST, TOUT, V1N, V1P, L, IO0, IO16, IO13, UTXD, IO15 and GND;
the data interface of the core processing chip (104) comprises a power supply interface, a grounding interface, an SPI interface, a PWM interface, an IR interface, an ADC interface, an I2C interface, a UART interface, an I2S interface, a GPIO interface, a reset pin, a measuring current sampling differential signal input end and a measuring voltage signal sampling input end.
2. The in-line wifi metering module of claim 1, characterized in that: the pins (108) are orderly arranged on the front side and the back side of the core region (101) and the metering region (103).
3. The in-line wifi metering module of claim 1, characterized in that: the peripheral circuit (107) comprises a filter circuit, a crystal oscillator circuit, a serial communication interface circuit and an electric quantity statistics interface circuit.
4. The in-line wifi metering module of claim 1, characterized in that: the antenna (106) is an on-board antenna.
5. The in-line wifi metering module of claim 1, characterized in that: the core processing chip (104) is an ESP8266 chip.
6. The in-line wifi metering module of claim 1, characterized in that: the core processing chip (104) is connected with an indicator light, and the indicator light is a patch type light-emitting diode.
7. The in-line wifi metering module of claim 1, characterized in that: the direct-insertion wifi metering module is welded on the main control board.
8. The in-line wifi metering module of claim 7, characterized in that: 5mm area clearance on the left and right sides of an antenna area (102) of the direct plug-in type wifi metering module.
9. The in-line wifi metering module of claim 7, characterized in that: the edge of an antenna area (102) of the direct-insertion wifi metering module is arranged along the plate edge of the main control plate, and the main control plate and 5mm areas on the left side and the right side of the antenna area (102) are kept away.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920637583.7U CN210222116U (en) | 2019-05-07 | 2019-05-07 | Formula wifi metering module cut straightly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920637583.7U CN210222116U (en) | 2019-05-07 | 2019-05-07 | Formula wifi metering module cut straightly |
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| CN210222116U true CN210222116U (en) | 2020-03-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791274A (en) * | 2021-09-07 | 2021-12-14 | 科大智能（合肥）科技有限公司 | Electric power direct current measurement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791274A (en) * | 2021-09-07 | 2021-12-14 | 科大智能（合肥）科技有限公司 | Electric power direct current measurement system |
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