CN207097225U - It is a kind of to apply the adaptive switched signal line selection apparatus copied in multilist collection - Google Patents

It is a kind of to apply the adaptive switched signal line selection apparatus copied in multilist collection Download PDF

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Publication number
CN207097225U
CN207097225U CN201721011713.3U CN201721011713U CN207097225U CN 207097225 U CN207097225 U CN 207097225U CN 201721011713 U CN201721011713 U CN 201721011713U CN 207097225 U CN207097225 U CN 207097225U
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Prior art keywords
diode
wave filtering
filtering circuit
current rectifying
electrically connects
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Chinese (zh)
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贺东明
王鹏
戴航
蔡金彪
韦景康
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Foshan Power Supply Bureau of Guangdong Power Grid Corp
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Foshan Power Supply Bureau of Guangdong Power Grid Corp
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Abstract

The utility model discloses a kind of adaptive switched signal line selection apparatus applied and copied in multilist collection.The utility model includes the first current rectifying and wave filtering circuit, the second current rectifying and wave filtering circuit, the first illuminating circuit, the second illuminating circuit, matching capacitance, current-limiting resistance and dpdt relay.Effect of the present utility model is when communication interface converter gathers MBUS bus datas, the automatic connection disconnected between gas recovery device and MBUS buses, combustion gas meter is allowd to receive correct level signal, feedback collection data, complete collection action of the communication interface converter to MBUS buses.

Description

It is a kind of to apply the adaptive switched signal line selection apparatus copied in multilist collection
Technical field
The utility model is related to automatic switching control equipment field, more particularly, to it is a kind of apply multilist collection copy from Switching signal line selection apparatus.
Background technology
It is all if gas meter, flow meter has built acquisition system well in electricity-water-gas multilist collection copies the process of construction of project Gas meter, flow meter is linked into the collector of combustion gas by MBUS buses, and it is total that the communication interface converter of multilist centralized meter-reading system is incorporated to MBUS Line, the both ends of bus are arranged in gas recovery device, gas meter, flow meter is gathered by MBUS buses.
Communication interface converter accesses gas recovery MBUS buses simultaneously with gas recovery device, when combustion gas communication interface is changed Device to combustion gas meter in MBUS buses send meter reading order when, can to MBUS bus transmission level signals, due to being adopted by combustion gas The interference of storage internal circuit, cause the level signal that communication interface converter is sent to be disturbed, produce signal distortion.MBUS is total The combustion gas meter accessed on line can not receive correct level signal, no useful signal return communication interface convertor, so as to lead Cause meter reading failure.Secondly, MBUS bus currents when gas recovery device access MBUS buses can cause communication interface converter meter reading Increase, communication interface converter overload.
Utility model content
The utility model overcomes what above-mentioned existing communication interface converter was connected with gas recovery device and MBUS buses Defect, there is provided it is a kind of it is new apply the adaptive switched signal line selection apparatus copied in multilist collection, can to communication interface converter with Gas recovery device switches over, and both is not carried out digital independent to MBUS buses simultaneously.
In order to solve the above technical problems, the technical solution of the utility model is as follows:
It is a kind of to apply the adaptive switched signal line selection apparatus copied in multilist collection including the first current rectifying and wave filtering circuit, second whole Filter circuit, the first illuminating circuit, the second illuminating circuit, matching capacitance, current-limiting resistance and dpdt relay are flowed, wherein,
The first described current rectifying and wave filtering circuit includes electrode input end, negative input, cathode output end and negative pole output End, the electrode input end and negative input of the first described current rectifying and wave filtering circuit as adaptive switched signal line selection apparatus first Input stage, the cathode output end of the first described current rectifying and wave filtering circuit electrically connect with one end of the first illuminating circuit, and described The cathode output end of one current rectifying and wave filtering circuit electrically connects with the other end of the first illuminating circuit;
The second described current rectifying and wave filtering circuit includes electrode input end, negative input, cathode output end and negative pole output End, the electrode input end and negative input of the second described current rectifying and wave filtering circuit as adaptive switched signal line selection apparatus second Input stage, the cathode output end of the second described current rectifying and wave filtering circuit electrically connect with one end of the second illuminating circuit, and described The cathode output end of two current rectifying and wave filtering circuits electrically connects with the other end of the second illuminating circuit;
Described dpdt relay include the first control terminal, the second control terminal, the first output end, the second output end, First movable end, the second movable end, the 3rd movable end and the 4th movable end, the first described movable end and the second movable end conduct First activity level of dpdt relay, the first described activity level electrically connect with the first input stage;The 3rd described activity End and second activity level of the 4th movable end as dpdt relay, the second described activity level are electrically connected with the second input stage Connect;Control pole of described the first control terminal and the second control terminal as dpdt relay;Described the first output end and Output stage of second output end as dpdt relay, under the control of control pole, output stage selection and the first activity level Or second activity level electrical connection;
The described cathode output end of the first current rectifying and wave filtering circuit electrically connects with one end of current-limiting resistance;
The described cathode output end of the first current rectifying and wave filtering circuit electrically connects with one end of matching capacitance;
The other end of described matching capacitance electrically connects with the other end of current-limiting resistance;
The other end of described matching capacitance electrically connects with the second control terminal;
One end of described matching capacitance electrically connects with the first control terminal;
Output stage of the output stage of described dpdt relay as adaptive switched signal line selection apparatus.
Utility model works flow:
Communication interface converter electrically connects with the first input stage, and gas recovery device electrically connects with the second input stage, output stage Electrically connected with MBUS buses, the second activity level and the normally closed connection of output stage.When communication interface converter does not gather MBUS buses, Second activity level and the normally closed connection of output stage, gas recovery device collect the data in MBUS buses.Meanwhile second rectifying and wave-filtering electricity The output current on road is lighted by the second illuminating circuit, the second illuminating circuit, represents gas recovery device on MBUS buses are collected Data.When communication interface converter gathers MBUS buses, the output stage of the first current rectifying and wave filtering circuit sends control signal.It is double After dpdt double-pole double-throw (DPDT) relay receives control signal, the second activity level disconnects with output stage, and the first activity level connects with output stage closure, Communication interface converter collects the data in MBUS buses.Meanwhile first current rectifying and wave filtering circuit output current pass through first hair Optical circuit, the first illuminating circuit light, and represent data of the communication interface converter on MBUS buses are collected.Matching capacitance with it is double Inductance in dpdt double-pole double-throw (DPDT) relay matches.Current-limiting resistance carries out current limliting to the output current of the first current rectifying and wave filtering circuit, prevents The control pole overload of dpdt relay.
In a kind of preferable scheme, the first described current rectifying and wave filtering circuit is the first single-phase bridge rectification capacitor filtering electricity Road, the first described single-phase bridge rectification capacitor filter include the first diode, the second diode, the 3rd diode, the Four diodes, the first electric capacity and the first load resistance, wherein,
Electrode input end of the positive pole of the first described diode as the first current rectifying and wave filtering circuit, the first diode is just Pole electrically connects with the negative pole of the 4th diode;
Cathode output end of the negative pole of the first described diode as the first current rectifying and wave filtering circuit, the first diode are born Pole electrically connects with one end of the first electric capacity;
The one end of the negative pole of the first described diode also with the first load resistance electrically connects;
Negative pole of the negative pole of the first described diode also with the second diode electrically connects;
Negative input of the positive pole of the second described diode as the first current rectifying and wave filtering circuit, the second diode is just Pole electrically connects with the negative pole of the 3rd diode;
Cathode output end of the positive pole of the 3rd described diode as the first current rectifying and wave filtering circuit, the 3rd diode is just Pole electrically connects with the positive pole of the 4th diode;
The other end of the positive pole of the 3rd described diode also with the first electric capacity electrically connects;
The other end of the positive pole of the 3rd described diode also with the first load resistance electrically connects.
First current rectifying and wave filtering circuit be to signal carry out rectifying and wave-filtering so that dpdt relay can with normal work, Without ceaselessly switching, while the first illuminating circuit normal work can make it that.In a kind of preferable scheme, described the Two current rectifying and wave filtering circuits are the second single-phase bridge rectification capacitor filters, the second described single-phase bridge rectification capacitor filtering electricity Road includes the 5th diode, the 6th diode, the 7th diode, the 8th diode, the second electric capacity and the second load resistance, its In,
Electrode input end of the positive pole of the 5th described diode as the second current rectifying and wave filtering circuit, the 5th diode is just Pole electrically connects with the negative pole of the 8th diode;
Cathode output end of the negative pole of the 5th described diode as the second current rectifying and wave filtering circuit, the 5th diode are born Pole electrically connects with one end of the second electric capacity;
The one end of the negative pole of the 5th described diode also with the second load resistance electrically connects;
Negative pole of the negative pole of the 5th described diode also with the 6th diode electrically connects;
Negative input of the positive pole of the 6th described diode as the second current rectifying and wave filtering circuit, the 6th diode is just Pole electrically connects with the negative pole of the 7th diode;
Cathode output end of the positive pole of the 7th described diode as the second current rectifying and wave filtering circuit, the 7th diode is just Pole electrically connects with the positive pole of the 8th diode;
The other end of the positive pole of the 7th described diode also with the second electric capacity electrically connects;
The other end of the positive pole of the 7th described diode also with the second load resistance electrically connects.
Second current rectifying and wave filtering circuit is to carry out rectifying and wave-filtering to signal so that the second illuminating circuit normal work.
In a kind of preferable scheme, the first described illuminating circuit is emitting led including first resistor and first, described One end of first resistor electrically connects with the cathode output end of the first current rectifying and wave filtering circuit, the other end of described first resistor and The cathode output end electricity of one emitting led positive pole electrical connection, the described first emitting led negative pole and the first current rectifying and wave filtering circuit Connection.The effect of first illuminating circuit is to show whether current first input stage electrically connects with output stage.
In a kind of preferable scheme, the second described illuminating circuit is emitting led including second resistance and second, described One end of second resistance electrically connects with the cathode output end of the second current rectifying and wave filtering circuit, the other end of described second resistance and The cathode output end electricity of two emitting led positive pole electrical connections, the described second emitting led negative pole and the second current rectifying and wave filtering circuit Connection.The effect of second illuminating circuit is to show whether current second input stage electrically connects with output stage.
In a kind of preferable scheme, the inductance in described matching capacitance and dpdt relay matches.
Compared with prior art, the beneficial effect of technical solutions of the utility model is:
It is automatic to disconnect between gas recovery device and MBUS buses when communication interface converter gathers MBUS bus datas Connection so that combustion gas meter can receive correct level signal, feedback collection data, complete communication interface converter to MBUS The collection action of bus.
Brief description of the drawings
Fig. 1 is embodiment circuit connection diagram.
Fig. 2 is embodiment current rectifying and wave filtering circuit figure.
Label declaration:1. the first illuminating circuit;2. the second illuminating circuit.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent;
In order to more preferably illustrate the present embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent actual product Size;
To those skilled in the art, it is to be appreciated that some known features and its explanation, which may be omitted, in accompanying drawing 's.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of apply the adaptive switched signal line selection apparatus copied in multilist collection, including the first rectifying and wave-filtering electricity Road, the second current rectifying and wave filtering circuit, the first illuminating circuit 1, the second illuminating circuit 2, matching capacitance C1, current-limiting resistance R3 and double-pole are double Relay is thrown, wherein,
First current rectifying and wave filtering circuit includes electrode input end, negative input, cathode output end and cathode output end, and first First input stage of the electrode input end and negative input of current rectifying and wave filtering circuit as adaptive switched signal line selection apparatus, first is whole The cathode output end of stream filter circuit electrically connects with one end of the first illuminating circuit 1, the negative pole output of the first current rectifying and wave filtering circuit End electrically connects with the other end of the first illuminating circuit 1;
Second current rectifying and wave filtering circuit includes electrode input end, negative input, cathode output end and cathode output end, and second Second input stage of the electrode input end and negative input of current rectifying and wave filtering circuit as adaptive switched signal line selection apparatus, second is whole The cathode output end of stream filter circuit electrically connects with one end of the second illuminating circuit 2, the negative pole output of the second current rectifying and wave filtering circuit End electrically connects with the other end of the second illuminating circuit 2;
Dpdt relay includes the first control terminal, the second control terminal, the first output end, the second output end, the first work Moved end, the second movable end, the 3rd movable end and the 4th movable end, the first movable end and the second movable end are as DPDT relay First activity level of device, the first activity level electrically connect with the first input stage;3rd movable end and the 4th movable end are double as double-pole The second activity level of relay is thrown, the second activity level electrically connects with the second input stage;First control terminal and the second control terminal conduct The control pole of dpdt relay;The output stage of first output end and the second output end as dpdt relay, is being controlled Under the control of pole processed, output stage selection electrically connects with the first activity level or the second activity level;
The cathode output end of first current rectifying and wave filtering circuit electrically connects with current-limiting resistance R3 one end;
The cathode output end of first current rectifying and wave filtering circuit electrically connects with matching capacitance C1 one end;
The matching capacitance C1 other end electrically connects with the current-limiting resistance R3 other end;
The matching capacitance C1 other end electrically connects with the second control terminal;
Matching capacitance C1 one end electrically connects with the first control terminal;
Matching capacitance C1 matches with the inductance in dpdt relay;
Output stage of the output stage of dpdt relay as adaptive switched signal line selection apparatus.
As shown in Fig. 2 the first current rectifying and wave filtering circuit is the first single-phase bridge rectification capacitor filter, including the one or two pole Pipe, the second diode, the 3rd diode, the 4th diode, the first electric capacity and the first load resistance, wherein,
Electrode input end of the positive pole of first diode as the first current rectifying and wave filtering circuit, the positive pole of the first diode and The negative pole electrical connection of four diodes;
Cathode output end of the negative pole of first diode as the first current rectifying and wave filtering circuit, the negative pole of the first diode and One end electrical connection of one electric capacity;
The one end of the negative pole of first diode also with the first load resistance electrically connects;
Negative pole of the negative pole of first diode also with the second diode electrically connects;
Negative input of the positive pole of second diode as the first current rectifying and wave filtering circuit, the positive pole of the second diode and The negative pole electrical connection of three diodes;
Cathode output end of the positive pole of 3rd diode as the first current rectifying and wave filtering circuit, the positive pole of the 3rd diode and The positive pole electrical connection of four diodes;
The other end of the positive pole of 3rd diode also with the first electric capacity electrically connects;
The other end of the positive pole of 3rd diode also with the first load resistance electrically connects.
As shown in Fig. 2 the second current rectifying and wave filtering circuit is the second single-phase bridge rectification capacitor filter, including the five or two pole Pipe, the 6th diode, the 7th diode, the 8th diode, the second electric capacity and the second load resistance, wherein,
Electrode input end of the positive pole of 5th diode as the second current rectifying and wave filtering circuit, the positive pole of the 5th diode and The negative pole electrical connection of eight diodes;
Cathode output end of the negative pole of 5th diode as the second current rectifying and wave filtering circuit, the negative pole of the 5th diode and One end electrical connection of two electric capacity;
The one end of the negative pole of 5th diode also with the second load resistance electrically connects;
Negative pole of the negative pole of 5th diode also with the 6th diode electrically connects;
Negative input of the positive pole of 6th diode as the second current rectifying and wave filtering circuit, the positive pole of the 6th diode and The negative pole electrical connection of seven diodes;
Cathode output end of the positive pole of 7th diode as the second current rectifying and wave filtering circuit, the positive pole of the 7th diode and The positive pole electrical connection of eight diodes;
The other end of the positive pole of 7th diode also with the second electric capacity electrically connects;
The other end of the positive pole of 7th diode also with the second load resistance electrically connects.
First illuminating circuit 1 is emitting led including first resistor R1 and first, and first resistor R1 one end is filtered with the first rectification The cathode output end electrical connection of wave circuit, the first resistor R1 other end electrically connect with first emitting led 1 positive pole, the first hair Light LED1 negative pole electrically connects with the cathode output end of the first current rectifying and wave filtering circuit.
Second illuminating circuit 2 includes second resistance R2 and second emitting led 2, second resistance R2 one end and the second rectification The cathode output end electrical connection of filter circuit, the second resistance R2 other end electrically connect with the second emitting led positive pole, the second hair Light LED negative pole electrically connects with the cathode output end of the second current rectifying and wave filtering circuit.
The present embodiment workflow:
Communication interface converter electrically connects with the first input stage, and gas recovery device electrically connects with the second input stage, output stage Electrically connected with MBUS buses, the second activity level and the normally closed connection of output stage.When communication interface converter does not gather MBUS buses, Second activity level and the normally closed connection of output stage, gas recovery device collect the data in MBUS buses.Meanwhile second rectifying and wave-filtering electricity The output current on road is lighted by the second illuminating circuit, LED2, represents data of the gas recovery device on MBUS buses are collected.When When communication interface converter gathers MBUS buses, the output stage of the first current rectifying and wave filtering circuit sends control signal.DPDT after After electrical equipment receives control signal, the second activity level disconnects with output stage, and the first activity level connects with output stage closure, communication interface Converter collects the data in MBUS buses.Meanwhile first current rectifying and wave filtering circuit output current by the first illuminating circuit, LED1 lights, and represents data of the communication interface converter on MBUS buses are collected.Matching capacitance C1 and dpdt relay In inductance match.Current-limiting resistance R3 carries out current limliting to the output current of the first current rectifying and wave filtering circuit, prevent DPDT after The control pole of electrical equipment produces overload because input current is excessive.
Same or analogous label corresponds to same or analogous part;
Term the being given for example only property explanation of position relationship described in accompanying drawing, it is impossible to be interpreted as the limitation to this patent;
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments It is exhaustive.All made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., should be included in Within the protection domain of the utility model claims.

Claims (10)

1. a kind of apply the adaptive switched signal line selection apparatus copied in multilist collection, it is characterised in that described adaptive switched signal choosing Line apparatus includes the first current rectifying and wave filtering circuit, the second current rectifying and wave filtering circuit, the first illuminating circuit, the second illuminating circuit, matching electricity Appearance, current-limiting resistance and dpdt relay, wherein,
The first described current rectifying and wave filtering circuit includes electrode input end, negative input, cathode output end and cathode output end, institute First input of the electrode input end and negative input for the first current rectifying and wave filtering circuit stated as adaptive switched signal line selection apparatus Level, the cathode output end of the first described current rectifying and wave filtering circuit electrically connect with one end of the first illuminating circuit, and described first is whole The cathode output end of stream filter circuit electrically connects with the other end of the first illuminating circuit;
The second described current rectifying and wave filtering circuit includes electrode input end, negative input, cathode output end and cathode output end, institute Second input of the electrode input end and negative input for the second current rectifying and wave filtering circuit stated as adaptive switched signal line selection apparatus Level, the cathode output end of the second described current rectifying and wave filtering circuit electrically connect with one end of the second illuminating circuit, and described second is whole The cathode output end of stream filter circuit electrically connects with the other end of the second illuminating circuit;
Described dpdt relay includes the first control terminal, the second control terminal, the first output end, the second output end, first Movable end, the second movable end, the 3rd movable end and the 4th movable end, the first described movable end and the second movable end are as double-pole First activity level of double-throw relay, the first described activity level electrically connect with the first input stage;Described the 3rd movable end and Second activity level of 4th movable end as dpdt relay, the second described activity level electrically connect with the second input stage; Control pole of described the first control terminal and the second control terminal as dpdt relay;The first described output end and second Output stage of the output end as dpdt relay, under the control of control pole, output stage selection with the first activity level or Second activity level electrically connects;
The described cathode output end of the first current rectifying and wave filtering circuit electrically connects with one end of current-limiting resistance;
The described cathode output end of the first current rectifying and wave filtering circuit electrically connects with one end of matching capacitance;
The other end of described matching capacitance electrically connects with the other end of current-limiting resistance;
The other end of described matching capacitance electrically connects with the second control terminal;
One end of described matching capacitance electrically connects with the first control terminal;
Output stage of the output stage of described dpdt relay as adaptive switched signal line selection apparatus.
2. adaptive switched signal line selection apparatus according to claim 1, it is characterised in that the first described current rectifying and wave filtering circuit It is the first single-phase bridge rectification capacitor filter, the first described single-phase bridge rectification capacitor filter includes the one or two pole Pipe, the second diode, the 3rd diode, the 4th diode, the first electric capacity and the first load resistance, wherein,
Electrode input end of the positive pole of the first described diode as the first current rectifying and wave filtering circuit, the positive pole of the first diode with The negative pole electrical connection of 4th diode;
Cathode output end of the negative pole of the first described diode as the first current rectifying and wave filtering circuit, the negative pole of the first diode with One end electrical connection of first electric capacity;
The one end of the negative pole of the first described diode also with the first load resistance electrically connects;
Negative pole of the negative pole of the first described diode also with the second diode electrically connects;
Negative input of the positive pole of the second described diode as the first current rectifying and wave filtering circuit, the positive pole of the second diode with The negative pole electrical connection of 3rd diode;
Cathode output end of the positive pole of the 3rd described diode as the first current rectifying and wave filtering circuit, the positive pole of the 3rd diode with The positive pole electrical connection of 4th diode;
The other end of the positive pole of the 3rd described diode also with the first electric capacity electrically connects;
The other end of the positive pole of the 3rd described diode also with the first load resistance electrically connects.
3. adaptive switched signal line selection apparatus according to claim 1 or 2, it is characterised in that the second described rectifying and wave-filtering Circuit is the second single-phase bridge rectification capacitor filter, and the second described single-phase bridge rectification capacitor filter includes the 5th Diode, the 6th diode, the 7th diode, the 8th diode, the second electric capacity and the second load resistance, wherein,
Electrode input end of the positive pole of the 5th described diode as the second current rectifying and wave filtering circuit, the positive pole of the 5th diode with The negative pole electrical connection of 8th diode;
Cathode output end of the negative pole of the 5th described diode as the second current rectifying and wave filtering circuit, the negative pole of the 5th diode with One end electrical connection of second electric capacity;
The one end of the negative pole of the 5th described diode also with the second load resistance electrically connects;
Negative pole of the negative pole of the 5th described diode also with the 6th diode electrically connects;
Negative input of the positive pole of the 6th described diode as the second current rectifying and wave filtering circuit, the positive pole of the 6th diode with The negative pole electrical connection of 7th diode;
Cathode output end of the positive pole of the 7th described diode as the second current rectifying and wave filtering circuit, the positive pole of the 7th diode with The positive pole electrical connection of 8th diode;
The other end of the positive pole of the 7th described diode also with the second electric capacity electrically connects;
The other end of the positive pole of the 7th described diode also with the second load resistance electrically connects.
4. adaptive switched signal line selection apparatus according to claim 3, it is characterised in that the first described illuminating circuit includes First resistor and first emitting led, one end of described first resistor and the cathode output end of the first current rectifying and wave filtering circuit are electrically connected Connect, the other end of described first resistor electrically connects with the first emitting led positive pole, the described first emitting led negative pole with The cathode output end electrical connection of first current rectifying and wave filtering circuit.
5. adaptive switched signal line selection apparatus according to claim 1 or 2, it is characterised in that the first described illuminating circuit It is emitting led including first resistor and first, described one end of first resistor and the cathode output end of the first current rectifying and wave filtering circuit Electrical connection, the other end of described first resistor electrically connects with the first emitting led positive pole, and described first emitting led bears Pole electrically connects with the cathode output end of the first current rectifying and wave filtering circuit.
6. the adaptive switched signal line selection apparatus according to claim 1,2 or 4, it is characterised in that the luminous electricity of described second Road includes second resistance and the second emitting led, described one end of second resistance and positive pole output of the second current rectifying and wave filtering circuit End electrical connection, the other end of described second resistance electrically connect with the second emitting led positive pole, and described second is emitting led Negative pole electrically connects with the cathode output end of the second current rectifying and wave filtering circuit.
7. adaptive switched signal line selection apparatus according to claim 3, it is characterised in that the second described illuminating circuit includes Second resistance and second emitting led, one end of described second resistance and the cathode output end of the second current rectifying and wave filtering circuit are electrically connected Connect, the other end of described second resistance electrically connects with the second emitting led positive pole, the described second emitting led negative pole with The cathode output end electrical connection of second current rectifying and wave filtering circuit.
8. adaptive switched signal line selection apparatus according to claim 5, it is characterised in that the second described illuminating circuit includes Second resistance and second emitting led, one end of described second resistance and the cathode output end of the second current rectifying and wave filtering circuit are electrically connected Connect, the other end of described second resistance electrically connects with the second emitting led positive pole, the described second emitting led negative pole with The cathode output end electrical connection of second current rectifying and wave filtering circuit.
9. adaptive switched signal line selection apparatus according to claim 6, it is characterised in that described matching capacitance is double with double-pole The inductance thrown in relay matches.
10. the adaptive switched signal line selection apparatus according to claim 1,2,4,7 or 8, it is characterised in that described matching electricity Appearance matches with the inductance in dpdt relay.
CN201721011713.3U 2017-08-14 2017-08-14 It is a kind of to apply the adaptive switched signal line selection apparatus copied in multilist collection Active CN207097225U (en)

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