CN209344829U - A kind of power-supplying circuit and gas meter, flow meter - Google Patents
A kind of power-supplying circuit and gas meter, flow meter Download PDFInfo
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- CN209344829U CN209344829U CN201920051305.3U CN201920051305U CN209344829U CN 209344829 U CN209344829 U CN 209344829U CN 201920051305 U CN201920051305 U CN 201920051305U CN 209344829 U CN209344829 U CN 209344829U
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Abstract
The utility model provides a kind of power-supplying circuit and gas meter, flow meter, is related to gas meter, flow meter field.The power-supplying circuit includes power module, power storage module and boost module.Power module provides electric energy to NB-IoT mould group.Power storage module, power storage module are electrically connected with power module, and power storage module charges electric power storage when power module provides enough electric currents, and when power module provides electric current deficiency, electric discharge supplement, provides stable electric current for NB-IoT mould group.Boost module, boost module are electrically connected with power storage module and NB-IoT mould group respectively, and for boost module in the output voltage deficiency that power module provides, boost module starting makes output voltage keep stablizing.It is effectively ensured power supply and is capable of providing stable electric current and voltage, it is ensured that the normal work of gas meter, flow meter NB-IoT mould group by setting power storage module and boost module.
Description
Technical field
The utility model relates to gas meter, flow meter fields, in particular to a kind of power-supplying circuit and gas meter, flow meter.
Background technique
Currently, NB-IoT gas meter, flow meter generallys use lithium-thionyl chloride battery (Li-Socl2) to internal circuit power supply.But
When NB-IoT intelligent gas meter is communicated, since battery discharge capability itself is insufficient, enough electric currents cannot be provided to protect
Demonstrate,prove the normal communication of NB-IoT intelligent gas meter.
Also, with the increase of discharge time, the voltage of lithium-thionyl chloride battery (Li-Socl2) can be gradually decreased, electricity
Pressure is insufficient, equally will affect the normal communication of NB-IoT gas meter, flow meter.
Therefore, a kind of power-supplying circuit is designed, the normal power supply that NB-IoT gas meter, flow meter is effectively ensured is urgently to solve at present
Certainly the problem of.
Utility model content
The purpose of this utility model includes providing a kind of power-supplying circuit, by the way that power storage module and boost module is arranged,
Power supply is effectively ensured and is capable of providing stable electric current and voltage, it is ensured that the normal work of gas meter, flow meter NB-IoT mould group.
The purpose of this utility model further includes providing a kind of gas meter, flow meter, using the power supply of setting power storage module and boost module
The normal work of NB-IoT mould group in gas meter, flow meter has been effectively ensured in power supply circuit.
The first technical solution provided by the utility model:
A kind of power-supplying circuit, the power-supplying circuit include:
Power module provides electric energy to NB-IoT mould group.
Power storage module, the power storage module are electrically connected with the power module, and the power storage module is in the power module
It charges when enough electric currents are provided electric power storage, the electric discharge supplement when the power module provides electric current deficiency is the NB-IoT mould group
Stable electric current is provided.
Boost module, the boost module are electrically connected with the power storage module and the NB-IoT mould group respectively, the liter
For die block in the output voltage deficiency that the power module provides, the boost module starting keeps the output voltage
Stablize.
Further, the power module includes savings battery, short-circuit protector, first capacitor and diode；It is described
One end of savings battery is electrically connected with one end of the short-circuit protector, other end ground connection；The other end of the short-circuit protector
It is electrically connected simultaneously with one end of the anode of the diode and the first capacitor；The cathode of the diode and the electric power storage mould
Block electrical connection；The other end of the first capacitor is grounded.
Further, the power module further includes electrostatic protection pipe；One end of the electrostatic protection pipe simultaneously with it is described
The positive and described first capacitor electrical connection of short-circuit protector, the diode, other end ground connection.
Further, the power storage module includes the second capacitor；One end of second capacitor simultaneously with the power supply mould
Block and boost module electrical connection；The other end of second capacitor is grounded.
Further, second capacitor is super capacitor；The super capacitor anode simultaneously with the power module
It is electrically connected with the boost module；The cathode of the super capacitor is grounded.
Further, the boost module includes the first filter unit, boosting unit and the second filter unit；Described
One end of one filter unit is electrically connected with the power storage module and the boosting unit simultaneously, other end ground connection；The boosting is single
Member is electrically connected with first filter unit and the second filter unit simultaneously；Second filter unit and the NB-IoT mould
Group electrical connection.
Further, first filter unit includes third capacitor；One end of the third capacitor simultaneously with the storage
Electric module and boosting unit electrical connection, other end ground connection.
Further, the boosting unit includes the first inductance, first resistor and booster；The booster includes the
One pin, second pin, third pin, the 4th pin, the 5th pin and the 6th pin；One end of first inductance and institute
Second pin electrical connection is stated, the other end is electrically connected with first pin；One end of the first resistor and the second pin
Electrical connection, the other end are electrically connected with the third pin；First filter unit is electrically connected with the second pin；Described
Four pins are electrically connected with second filter unit；The 5th pin ground connection；The 6th pin ground connection.
Further, second filter unit includes the 4th capacitor in parallel, the 5th capacitor, the 6th capacitor and the 7th
Capacitor, and one end is electrically connected with the boosting unit after parallel connection, other end ground connection.
Second of technical solution provided by the utility model:
A kind of gas meter, flow meter, including power-supplying circuit described in NB-IoT mould group and the first technical solution；The NB-
IoT mould group is electrically connected with the boost module.
The beneficial effect of a kind of power-supplying circuit and gas meter, flow meter provided by the utility model is:
Power-supplying circuit carries out charging electric power storage when power supply provides electric current abundance, in power supply by setting power storage module
When providing electric current deficiency, supplemental current of discharging, the electric current for providing power supply keeps stablizing, and reaches the requirement of supply current.Setting
Boost module carries out boosting processing, output voltage is made to meet the requirement of utilization voltage in the undertension that power supply provides.
The power supply of gas meter, flow meter can effectively ensure that NB- using the power-supplying circuit of setting power storage module and boost module
The normal work of IoT mould group, guarantees the normal use of gas meter, flow meter.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the system block diagram of power-supplying circuit provided by the embodiment of the utility model；
Fig. 2 is the physical circuit figure of power-supplying circuit provided by the embodiment of the utility model；
Fig. 3 is the physical circuit composition figure of the boost module for the power supply module that utility model embodiment provides；
Fig. 4 is the power supply flow chart of gas meter, flow meter power-supplying circuit provided by the embodiment of the utility model.
Icon: 100- power-supplying circuit；01- power module；11- battery；02- power storage module；03- boost module；
The first filter unit of 31-；32- boosting unit；321-DC-DC booster；The second filter unit of 33-；04-NB-IoT mould group.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be understood that the orientation of instructions such as term " on ", "lower", " inside " or
Positional relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when the side usually put
The orientation or positional relationship that position or positional relationship or those skilled in the art usually understand is merely for convenience of description originally
Utility model and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply
Relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
NB-IoT gas meter, flow meter generallys use lithium-thionyl chloride battery (Li-Socl2) to internal circuit power supply.But work as NB-
When IoT intelligent gas meter is communicated, since battery discharge capability itself is insufficient, enough electric currents cannot be provided to guarantee NB-
The normal communication of IoT intelligent gas meter.
Also, with the increase of discharge time, the voltage of lithium-thionyl chloride battery (Li-Socl2) can be gradually decreased, electricity
Pressure is insufficient, equally will affect the normal communication of NB-IoT gas meter, flow meter.
Therefore, it is necessary to the power ends to gas meter, flow meter to improve, and guarantee that power end is capable of providing the stable electricity met the requirements
Stream and voltage.By carefully analyzing and studying, power storage module is set on power-supplying circuit, the electric current that power supply provides is carried out
It is replenished in time, can guarantee that power supply provides stable electric current.
In addition, boost module is arranged on power-supplying circuit in order to make the output voltage of power supply keep stablizing, for electricity
When source output voltage reduces, boosting processing is carried out, guarantees the output voltage stabilization of power supply, and meets the requirement of supply voltage.
Embodiment
Referring to Fig. 1, present embodiments providing a kind of gas meter, flow meter.The gas meter, flow meter includes base table and electronic processing system.Electricity
Subprocessing system includes NB-IoT mould group 04 and power-supplying circuit 100.Power-supplying circuit 100 is that NB-IoT mould group 04 provides
Electric energy guarantees that NB-IoT mould group 04 is normally carried out the data communication of related combustion gas information.
In order to make power supply offer electric current and output voltage can satisfy power reguirements, NB-IoT mould group 04 is being effectively ensured just
Normal communication work designs power-supplying circuit 100.The power-supplying circuit 100 include power module 01, power storage module 02 and
Boost module 03.
Power module 01 is mainly electric energy needed for NB-IoT mould group 04 provides work.Power storage module 02 and power module 01
Electrical connection.In the case where the electric current that power module 01 provides is sufficient, power storage module 02 carries out charging electric power storage.When power module 01
The electric current of offer is insufficient, and when power reguirements are not achieved, power storage module 02 is discharged, and supplemental current makes the defeated of power-supplying circuit 100
Electric current can satisfy the normal work requirement of NB-IoT mould group 04 out.
Boost module 03 is connect with power storage module 02.Power module 01 can be gradually decreased by prolonged electric discharge, voltage.
The voltage that boost module 03 exports power module 01 carries out boosting processing, the output voltage for providing power supply power supply power supply 100
It can satisfy the voltage needs of the normal work of NB-IoT mould group 04.
In the following, please referring to Fig. 2 and Fig. 3, the physical circuit composition of power-supplying circuit 100 is specifically introduced.
Please refer to the physical circuit figure of power-supplying circuit 100 described in Fig. 2.Power module 01 includes battery 11, short
Protector F1, first capacitor C1 and diode D1.Wherein, one end of the anode and short-circuit protector F1 of battery 11 is electrically connected
It connects.The other end of short-circuit protector F1 is electrically connected with the anode of one end of first capacitor C1 and diode D1 simultaneously.Diode D1
Cathode be electrically connected with power storage module 02.
The cathode of battery 11, the other end of first capacitor C1 are grounded.In order to guarantee that power module 01 is mounted on combustion gas
After on table, operating personnel operate gas meter, flow meter situations such as cause electrostatic, power module 01 is damaged, is also set up in power module 01
Electrostatic protection pipe DV1.One end of electrostatic protection pipe DV1 simultaneously with the other end of short-circuit protector F1, first capacitor C1 one
The anode electrical connection of end and diode D1.The other end of electrostatic protection pipe DV1 is grounded.
In the present embodiment, battery 11 uses lithium-thionyl chloride battery (Li-Socl2), lithium-thionyl chloride battery (Li-
Socl2) operating voltage is 3.6V.Electrostatic protection pipe DV1 is two-way transient voltage suppressor.
Since power storage module 02 needs to carry out charge and discharge repeatedly, and provide the electricity that enough electric currents supply battery offer
Stream, power storage module 02 include the second capacitor, and here, the second capacitor is super capacitor E1.The anode and diode of super capacitor E1
The cathode of D1 connects, the cathode ground connection of super capacitor E1.
The selection of super capacitor E1 is a variety of, it is preferable that in the present embodiment, the model 1.5F/ of super capacitor E1 selection
5.4V。
The physical circuit composition figure of boost module 03 shown in Fig. 3 is please referred to, and combines Fig. 2.Boost module 03 is power supply
Power supply circuit 100 carries out boosting processing.Boost module 03 includes the first filter unit 31, boosting unit 32 and the second filtering mould
Block 33.
First filter unit 31 includes the second capacitor C2.Second capacitor C2 is filtered between boosting unit 32.
One end of second capacitor C2 is electrically connected with the cathode of diode D1, other end ground connection.
Boosting unit 32 includes DC-DC booster 321, the first inductance L1 and first resistor R1.DC-DC booster 321
Including the first pin 1, second pin 2, third pin 3, the 4th pin 4, the 5th pin 5 and the 6th pin 6.
Wherein, one end of the first inductance L1 is electrically connected with the first pin 1, and the other end is electrically connected with the one or two pin 2；First
One end of resistance R1 is electrically connected with third pin 3, and the other end is electrically connected with second pin 2.Second pin 2 is also single with the first filtering
Member 31 is electrically connected, and specifically, second pin 2 is electrically connected with one end of the second capacitor C2.
5th pin 5 of DC-DC booster 321 and the 6th pin 6 are grounded, the 4th pin 4 of DC-DC booster 321
It is electrically connected with the second filter unit 33.Specifically, the second filter unit 33 includes third capacitor C3, the 4th capacitor C4, the 5th electricity
Hold C5 and the 6th capacitor C6.Third capacitor C3, the 4th capacitor C4, the 5th capacitor C5 and the 6th capacitor C6 are arranged in parallel, and
One end of third capacitor C3, one end of the 4th capacitor C4, one end 5 of the 5th capacitor C and the 6th capacitor C6 one end simultaneously with
The 4th pin 4 and NB-IoT mould group 04 of DC-DC booster 321 are electrically connected, the other end, the 4th capacitor C4 of third capacitor C3
The other end, the other end 5 of the 5th capacitor C and the other end of the 6th capacitor C6 be grounded.
Third capacitor C3, the 4th capacitor C4, the 5th capacitor C5 and the 6th capacitor C6 are arranged in parallel, to DC-DC booster
321 treated that circuit is filtered, and guarantees normally and efficiently working for NB-IoT mould group 04.
The model of DC-DC booster 321 is a variety of, requires as long as can satisfy boosting, type kind is all desirable.It is excellent
Selection of land, in the present embodiment, the model TPS610995 of DC-DC booster 321, quiescent current 800nA can be by power supply electricity
Pressure rises to 3.6V.
Incorporated by reference to Fig. 4, the specific embodiment of gas meter, flow meter and power-supplying circuit 100 provided in this embodiment is as follows:
Under normal circumstances, for NB-IoT mould group 04 when without data transmit-receive, power module 01 is capable of providing sufficient electricity
Can, guarantee the normal operation of NB-IoT mould group 04.When NB-IoT mould group 04 carries out data transmit-receive, electric current needed for working is up to
200mA, and the time for continuing 10S or so, at this moment, the discharge capability of power module 01 far can not provide enough electric currents to tie up
Hold the normal work of NB-IoT mould group 04.
When the electric current deficiency that power module 01 provides, the electric discharge supplemental current of power storage module 02, maximum current can reach
330mA, the electric current for providing power-supplying circuit 100 reach the requirement that NB-IoT mould group 04 works normally required electric current, guarantee
The normal work of NB-IoT mould group 04.
During 01 continuous discharge of power module, the voltage of power module 01 can be gradually reduced, guarantor that cannot be stable
The output voltage of 3.6V is held, at this moment, under the starting electric signal effect of power supply VCC, DC-DC booster 321 rises power supply
Pressure processing, by the output voltage stabilization of power-supplying circuit 100 in 3.6V, needed for guaranteeing that providing NB-IoT mould group 04 works normally
Operating voltage.
Gas meter, flow meter and power-supplying circuit 100 provided in this embodiment mainly has the following
The utility model has the advantages that
Power-supplying circuit 100 carries out charging electric power storage when power supply provides electric current abundance by setting power storage module 02,
When power supply provides electric current deficiency, supplemental current of discharging, the electric current for providing power supply keeps stablizing, and reaches the requirement of supply current.
Boost module 03 is set, in the undertension that power supply provides, carries out boosting processing, output voltage is made to meet wanting for utilization voltage
It asks.
The power supply of gas meter, flow meter can effectively ensure that using the power-supplying circuit of setting power storage module 02 and boost module 03
The normal work of NB-IoT mould group 04, guarantees the normal use of gas meter, flow meter.
It should be noted that appended drawing reference with the arrow in all attached drawings is to refer to the flow direction or letter of electric signal in circuit
Cease flow direction.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of power-supplying circuit, which is characterized in that the power-supplying circuit includes:
Power module provides electric energy to NB-IoT mould group；
Power storage module, the power storage module are electrically connected with the power module, and the power storage module is provided in the power module
It charges when enough electric currents electric power storage, when the power module provides electric current deficiency, electric discharge supplement, provides for the NB-IoT mould group
Stable electric current；
Boost module, the boost module are electrically connected with the power storage module and the NB-IoT mould group respectively, the boosting mould
For block in the output voltage deficiency that the power module provides, the boost module starting makes the output voltage keep stablizing.
2. power-supplying circuit as described in claim 1, which is characterized in that the power module includes savings battery, short circuit
Protector, first capacitor and diode；One end of the savings battery is electrically connected with one end of the short-circuit protector, another
End ground connection；The one end of the other end of the short-circuit protector simultaneously with the anode of the diode and the first capacitor is electrically connected
It connects；The cathode of the diode is electrically connected with the power storage module；The other end of the first capacitor is grounded.
3. power-supplying circuit as claimed in claim 2, which is characterized in that the power module further includes electrostatic protection pipe；
One end of the electrostatic protection pipe is electrically connected with the positive and described first capacitor of the short-circuit protector, the diode simultaneously
It connects, other end ground connection.
4. power-supplying circuit as described in claim 1, which is characterized in that the power storage module includes the second capacitor；It is described
One end of second capacitor is electrically connected with the power module and the boost module simultaneously；Another termination of second capacitor
Ground.
5. power-supplying circuit as claimed in claim 4, which is characterized in that second capacitor is super capacitor；It is described super
The anode of grade capacitor is electrically connected with the power module and the boost module simultaneously；The cathode of the super capacitor is grounded.
6. power-supplying circuit as described in claim 1, which is characterized in that the boost module include the first filter unit,
Boosting unit and the second filter unit；One end of first filter unit is single with the power storage module and the boosting simultaneously
Member electrical connection, other end ground connection；The boosting unit is electrically connected with first filter unit and the second filter unit simultaneously；
Second filter unit is electrically connected with the NB-IoT mould group.
7. power-supplying circuit as claimed in claim 6, which is characterized in that first filter unit includes third capacitor；
One end of the third capacitor is electrically connected with the power storage module and the boosting unit simultaneously, other end ground connection.
8. power-supplying circuit as claimed in claim 6, which is characterized in that the boosting unit includes the first inductance, first
Resistance and booster；The booster include the first pin, second pin, third pin, the 4th pin, the 5th pin and
6th pin；One end of first inductance is electrically connected with the second pin, and the other end is electrically connected with first pin；Institute
The one end for stating first resistor is electrically connected with the second pin, and the other end is electrically connected with the third pin；First filtering
Unit is electrically connected with the second pin；4th pin is electrically connected with second filter unit；5th pin connects
Ground；The 6th pin ground connection.
9. power-supplying circuit as claimed in claim 6, which is characterized in that second filter unit includes the 4 of parallel connection
Capacitor, the 5th capacitor, the 6th capacitor and the 7th capacitor, and one end is electrically connected with the boosting unit after parallel connection, another termination
Ground.
10. a kind of gas meter, flow meter, which is characterized in that supplied including NB-IoT mould group and power supply described in any one of claim 1-9
Circuit；The NB-IoT mould group is electrically connected with the boost module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920051305.3U CN209344829U (en) | 2019-01-12 | 2019-01-12 | A kind of power-supplying circuit and gas meter, flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920051305.3U CN209344829U (en) | 2019-01-12 | 2019-01-12 | A kind of power-supplying circuit and gas meter, flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209344829U true CN209344829U (en) | 2019-09-03 |
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ID=67761352
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920051305.3U Active CN209344829U (en) | 2019-01-12 | 2019-01-12 | A kind of power-supplying circuit and gas meter, flow meter |
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| CN (1) | CN209344829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907000A (en) * | 2019-11-19 | 2020-03-24 | 上海桑锐电子科技股份有限公司 | Unidirectional low-pass filtering blocking circuit and method |
-
2019
- 2019-01-12 CN CN201920051305.3U patent/CN209344829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907000A (en) * | 2019-11-19 | 2020-03-24 | 上海桑锐电子科技股份有限公司 | Unidirectional low-pass filtering blocking circuit and method |
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