CN208862807U

CN208862807U - LORA communication module for ammeter

Info

Publication number: CN208862807U
Application number: CN201821484729.0U
Authority: CN
Inventors: 陈世凡; 蒋滔
Original assignee: Shenzhen Calinmeter Co ltd
Current assignee: Shenzhen Calinmeter Co ltd
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2019-05-14
Anticipated expiration: 2028-09-11

Abstract

The utility model discloses a kind of LORA communication modules for ammeter, including single contact pin JRF1, single contact pin JRF4, RF module J RF2 and RF module J RF3, it is electrically connected between single contact pin JRF1 and the RF module J RF2, it is electrically connected between single contact pin JRF4 and RF module J RF3, it further include having switch module, switch module is connected between single contact pin JRF1 and the RF module J RF2, and switch module is additionally attached between single contact pin JRF4 and the RF module J RF3.The utility model structure is simple, and the versatility of LORA communication module is realized by the switching of control switch module, saves cost.

Description

LORA communication module for ammeter

Technical field

The utility model relates to ammeter technical fields, more particularly to a kind of LORA communication module for ammeter.

Background technique

Ammeter is widely used in daily production and life, and existing ammeter generally all has the function of LORA communication, still The LORA communication module of different ammeters is not general, for different ammeters, needs to match different LORA communication modules, increases Production cost.

Utility model content

A kind of the purpose of this utility model is to provide structures LORA communication module for ammeter simple, at low cost.

A kind of LORA communication module for ammeter disclosed by the utility model the technical solution adopted is that:

For the LORA communication module of ammeter, including single contact pin JRF1, single contact pin JRF4, RF module J RF2 and RF mould Block JRF3, is electrically connected between the single contact pin JRF1 and the RF module J RF2, the single contact pin JRF4 and RF It is electrically connected between module J RF3,

Further include having switch module, the switch module be connected to the single contact pin JRF1 and RF module J RF2 it Between, the switch module is additionally attached between the single contact pin JRF4 and the RF module J RF3.

Preferably, the switch module includes first switch module, the first switch module input connection One of them communication signal input terminal of the single contact pin JRF1, the single contact pin JRF4, the first switch module Output end connects one of them communication signal output end of the RF module J RF2, the RF module J RF3.

Preferably, the first switch module includes switching diode DRF1, the switching diode DRF1's Cathode connects one of them communication signal input terminal of the single contact pin JRF1, the single contact pin JRF4, the switch two The anode of pole pipe DRF1 connect the RF module J RF2, the RF module J RF3 one of them communication signal output end and power supply End.

Preferably, the switch module further includes the second switch module with the first switch wired in parallel, The input terminal of the second switch module connect the RF module J RF2, the RF module J RF3 one of them communication signal it is defeated Outlet, the output end of the second switch module connect the single contact pin JRF1, the single contact pin JRF4 one of them Communication signal input terminal.

Preferably, the second switch module includes switching transistor QRF1 and switching transistor QRF2, described The base stage of switching transistor QRF1 connect the RF module J RF2, the RF module J RF3 one of them communication signal output End, the base stage of collector the connection feeder ear and the switching transistor QRF2 of the switching transistor QRF1, the switch three The collector of pole pipe QRF2 connect the single contact pin JRF1, the single contact pin JRF4 one of them communication signal input End.

Preferably, the switch module further includes and the first switch module, second switch wired in parallel Third switch module, the third switch module include switching diode DRF2, the anode connection of the switching diode DRF2 The cathode of one of them reset terminal of the RF module J RF2, the RF module J RF3, the switching diode DRF2 connects institute State one of them reset terminal of single contact pin JRF1, the single contact pin JRF4.

It preferably, further include having pressure stabilizing voltage reduction module, the input terminal of the pressure stabilizing voltage reduction module connects power supply, institute The output end for stating pressure stabilizing voltage reduction module is feeder ear.

Preferably, the pressure stabilizing voltage reduction module includes voltage-stablizer URF1, and the input terminal of the voltage-stablizer URF1 connects Power supply is connect, capacitor CRF3, the output end of the voltage-stablizer URF1 are parallel between the input terminal and power supply of the voltage-stablizer URF1 It is parallel with capacitor CRF1, capacitor CRF2, capacitor CRF4.

The utility model provides a kind of LORA communication module for ammeter, when use single-phase electric meter or three-phase kilowatt-hour meter When, the connection between single contact pin JRF1 and RF module J RF2 is connected in control switch module, closes single contact pin JRF4 and RF mould Connection between block JRF3, makes to connect between single contact pin JRF1 and RF module J RF2 and is communicated.When using guide rail meter, control The connection between single contact pin JRF4 and RF module J RF3 is connected in switch module processed, closes single contact pin JRF1 and RF module Connection between JRF2, makes to connect between single contact pin JRF4 and RF module J RF3 and is communicated.The utility model structure is simple, It is at low cost, single contact pin and RF module can be made to meet not by the switching of control switch module according to different ammeter types With the requirement of ammeter, the general of LORA communication module is realized.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the single contact pin JRF1 of the utility model.

Fig. 2 is the structural schematic diagram of the single contact pin JRF4 of the utility model.

Fig. 3 is the structural schematic diagram of the RF module J RF2 of the utility model.

Fig. 4 is the structural schematic diagram of the RF module J RF3 of the utility model.

Fig. 5 is the structural schematic diagram of the first switch module of the utility model.

Fig. 6 is the structural schematic diagram of the second switch module of the utility model.

Fig. 7 is the structural schematic diagram of the third switch module of the utility model.

Fig. 8 is the structural schematic diagram of the pressure stabilizing voltage reduction module of the utility model.

Specific embodiment

The utility model is further elaborated and is illustrated with Figure of description combined with specific embodiments below:

Please refer to Fig. 1,2,3,4, for the LORA communication module of ammeter, including single contact pin JRF1, single contact pin JRF4, RF module J RF2 and RF module J RF3, is electrically connected between the single contact pin JRF1 and the RF module J RF2, described single It is electrically connected between contact pin JRF4 and the RF module J RF3.

Referring to FIG. 5, the switch module includes first switch module, described in the first switch module input connection One of them communication signal input terminal of single contact pin JRF1, the single contact pin JRF4, the output of the first switch module End connects one of them communication signal output end of the RF module J RF2, the RF module J RF3.

The first switch module includes switching diode DRF1, and the cathode of the switching diode DRF1 connects the list One of them communication signal output end of socket needle JRF1, the single contact pin JRF4, the anode of the switching diode DRF1 Connect one of them communication signal output end and feeder ear of the RF module J RF2, the RF module J RF3.

One of them communication signal output end of the RF module J RF2, the RF module J RF3 outputs signals to switch two The anode of pole pipe DRF1, the switching diode DRF1 conducting, to make the RF module J RF2 and the single contact pin JRF1 Between conducting carry out communication connection, or conducting is made between the RF module J RF3 and the single contact pin JRF4 to carry out communication company It connects.

Referring to FIG. 6, the switch module further includes the second switch module with the first switch wired in parallel, it is described The input terminal of second switch module connect the RF module J RF2, the RF module J RF3 one of them communication signal output End, the output end of the second switch module connect one of them logical of the single contact pin JRF1, the single contact pin JRF4 Interrogate signal input part.

The second switch module includes switching transistor QRF1 and switching transistor QRF2, the switching transistor QRF1 Base stage connect one of them communication signal output end of the RF module J RF2, the RF module J RF3, three pole of switch The base stage of collector the connection feeder ear and the switching transistor QRF2 of pipe QRF1, the collector of the switching transistor QRF2 Connect one of them communication signal input terminal of the single contact pin JRF1, the single contact pin JRF4.

One of them communication signal output end of the RF module J RF2, the RF module J RF3 outputs signals to described open The base stage of triode QRF1 is closed, is connected between the collector and emitter of the switching transistor QRF1, the switching transistor The collector of QRF1 becomes high level, so that the base stage of the switching transistor QRF2 becomes high level, switching transistor QRF2 Collector and emitter between be also turned on, thus between the RF module J RF2 and the single contact pin JRF1 be connected carry out Conducting carries out communication connection between communication connection or the RF module J RF3 and the single contact pin JRF4.

Referring to FIG. 7, the switch module further includes and the first switch module, the third of second switch wired in parallel Switch module, the third switch module include switching diode DRF2, described in the anode connection of the switching diode DRF2 The cathode of one of them reset terminal of RF module J RF2, the RF module J RF3, the switching diode DRF2 connects the list One of them reset terminal of socket needle JRF1, the single contact pin JRF4.

One of them communication signal output end of the RF module J RF2, the RF module J RF3 outputs signals to switch two The anode of pole pipe DRF1, switching diode DRF1 conducting, to make the reset terminal of the RF module J RF2 and described single Between the reset terminal of contact pin JRF1 conducting carry out communication connection, or make the RF module J RF3 reset terminal and it is described it is single insert Conducting carries out communication connection between the reset terminal of needle JRF4.

Referring to FIG. 8, further including having pressure stabilizing voltage reduction module, the input terminal of the pressure stabilizing voltage reduction module connects power supply, described The output end of pressure stabilizing voltage reduction module is feeder ear.

The pressure stabilizing voltage reduction module includes voltage-stablizer URF1, and the input terminal of the voltage-stablizer URF1 connects power supply, described steady Capacitor CRF3 is parallel between the input terminal and power supply of depressor URF1, the output end of the voltage-stablizer URF1 is parallel with capacitor CRF1, capacitor CRF2, capacitor CRF4.

Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this The spirit and scope of utility model technical solution.

Claims

1. being used for the LORA communication module of ammeter, it is characterised in that: including single contact pin JRF1, single contact pin JRF4, RF module JRF2 and RF module J RF3, is electrically connected, the single contact pin between the single contact pin JRF1 and the RF module J RF2 It is electrically connected between JRF4 and the RF module J RF3,

It further include having switch module, the switch module is connected between the single contact pin JRF1 and the RF module J RF2, The switch module is additionally attached between the single contact pin JRF4 and the RF module J RF3.

2. being used for the LORA communication module of ammeter as described in claim 1, it is characterised in that: the switch module includes first Switch module, the first switch module input connect the single contact pin JRF1, the single contact pin JRF4 one of them Communication signal input terminal, the output end of the first switch module connect the RF module J RF2, the RF module J RF3 its In one communication signal output end.

3. being used for the LORA communication module of ammeter as claimed in claim 2, it is characterised in that: the first switch module includes The cathode of switching diode DRF1, the switching diode DRF1 connect the single contact pin JRF1, the single contact pin JRF4 The anode of the communication signal input terminal of one of them, the switching diode DRF1 connects the RF module J RF2, the RF mould One of them communication signal output end and feeder ear of block JRF3.

4. as claimed in claim 3 be used for ammeter LORA communication module, it is characterised in that: the switch module further include with The input terminal of the second switch module of the first switch wired in parallel, the second switch module connects the RF module One of them communication signal output end of JRF2, the RF module J RF3, described in the output end connection of the second switch module One of them communication signal input terminal of single contact pin JRF1, the single contact pin JRF4.

5. being used for the LORA communication module of ammeter as claimed in claim 4, it is characterised in that: the second switch module includes The base stage of switching transistor QRF1 and switching transistor QRF2, the switching transistor QRF1 connect the RF module J RF2, institute State one of them communication signal output end of RF module J RF3, the collector connection feeder ear of the switching transistor QRF1 and institute The base stage of switching transistor QRF2 is stated, the collector of the switching transistor QRF2 connects the single contact pin JRF1, the list One of them communication signal input terminal of socket needle JRF4.

6. as claimed in claim 5 be used for ammeter LORA communication module, it is characterised in that: the switch module further include with The third switch module of the first switch module, second switch wired in parallel, the third switch module include two pole of switch Pipe DRF2, the anode of the switching diode DRF2 connects the RF module J RF2, the RF module J RF3, and one of them is answered Position end, the cathode of the switching diode DRF2 connect the single contact pin JRF1, the single contact pin JRF4 one of them Reset terminal.

7. being used for the LORA communication module of ammeter as described in claim 1, it is characterised in that: further include thering is pressure stabilizing to be depressured mould Block, the input terminal of the pressure stabilizing voltage reduction module connect power supply, and the output end of the pressure stabilizing voltage reduction module is feeder ear.

8. being used for the LORA communication module of ammeter as claimed in claim 7, it is characterised in that: the pressure stabilizing voltage reduction module includes The input terminal of voltage-stablizer URF1, the voltage-stablizer URF1 connect power supply, between the input terminal and power supply of the voltage-stablizer URF1 simultaneously It is associated with capacitor CRF3, the output end of the voltage-stablizer URF1 is parallel with capacitor CRF1, capacitor CRF2, capacitor CRF4.