CN102412613A - Intrinsically safe battery with self recovery function - Google Patents
Intrinsically safe battery with self recovery function Download PDFInfo
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- CN102412613A CN102412613A CN201110452452XA CN201110452452A CN102412613A CN 102412613 A CN102412613 A CN 102412613A CN 201110452452X A CN201110452452X A CN 201110452452XA CN 201110452452 A CN201110452452 A CN 201110452452A CN 102412613 A CN102412613 A CN 102412613A
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Abstract
The invention discloses an intrinsically safe battery with a self recovery function. The intrinsically safe battery comprises an non-intrinsically safe battery and a current limiting circuit connected between the non-intrinsically safe battery and a load, wherein the battery limit circuit comprises a bidirectional switching circuit, a current detection circuit, an overflowing and short circuit judging circuit, a pulse control circuit and a driving circuit, wherein the current detection circuit is connected with the bidirectional switch circuit; the overflowing and short circuit judging circuit is connected with the current detection circuit; the pulse control circuit is connected with the overflowing and short circuit judging circuit; the driving circuit is connected with the pulse control circuit; the input end of the overflowing and short circuit judging circuit is connected with a reference circuit; the pulse control circuit comprises a monostable trigger circuit which can enable the driving circuit to automatically recover connection again after the driving circuit is cut off. The intrinsically safe battery provided by the invention is simple in structure, is novel and reasonable in design, is convenient to implement, has a self recovery function, can be used fur improving the intrinsic safety output power, has high practicability, has a good using effect, and is convenient to popularize and use.
Description
Technical field
The present invention relates to a kind of electronic product, especially relate to a kind of intrinsically safe battery that is used for risk environments such as colliery, oil, chemical industry.
Background technology
The essential safe type circuit is meant circuit under normal condition and under the malfunction of regulation, and any electric spark of generation or any thermal effect all can not cause the circuit of the explosive mixture blast of regulation.The essential safe type circuit is the important component part of electronic equipment, in risk environments such as some colliery, oil, chemical industry, requires uninterrupted power supply, needs additional reserve battery.But because battery self, in case fault such as short circuit occurs, will produce very big short circuit current, caused electric spark may be ignited inflammable, explosion hazard gases, obviously can not satisfy essential safety and require.Therefore, in order to be applied to just must between battery and output loading, to introduce energy limited circuit in the dangerous type environment, within the specific limits with the restriction of fault spark energy with making cell safety.Transform various non-safe batteries as intrinsically safe battery, the output energy of battery when load short circuits is restricted, satisfy the specification requirement of essential safe type circuit output.
Existing energy limited circuit adopts resistance current limliting and voltage-stabiliser tube or transistor pressure limiting usually; Limit maximum current and ceiling voltage; To reach the purpose of restriction energy, this way can not thoroughly be turn-offed the power supply energy of input, and loss is very big; And the portion of energy restricting circuits still can't be recovered even electric current is lower than requirement for restriction after the excessive or short trouble of electric current takes place starting automatically.Therefore, design be applicable to risk environment can to recover the intrinsic safety type battery automatically significant.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned deficiency of the prior art a kind of intrinsically safe battery with self-recovering function to be provided, and it is simple in structure; Novel and reasonable design, it is convenient to realize, has self-recovering function; Can improve the intrinsic safety power output; Practical, result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of intrinsically safe battery with self-recovering function; Comprise the non-intrinsically safe safe battery and be connected on the current limit circuit between non-intrinsically safe safe battery and the load; It is characterized in that: said current limit circuit comprises the current detection circuit that is connected between non-intrinsically safe safe battery and the load and is used for realizing bidirectional switch circuit that the circuit electric energy inputs or outputs, joins with the output of bidirectional switch circuit and is used for the real-time detection circuit size of current, join with the output of current detection circuit and be used to judge overcurrent that overcurrent or short circuit phenomenon whether have occurred and short circuit discrimination circuit, join with the output of overcurrent and short circuit discrimination circuit and be used to produce the pulse control circuit of pulse control signal and join with the output of pulse control circuit and be used to control the drive circuit of bidirectional switch circuit conducting forward or backwards; The input of said overcurrent and short circuit discrimination circuit is connected to and is used to the reference circuit that overcurrent and short circuit discrimination circuit provide the discrimination standard signal; The output of said reference circuit and non-intrinsically safe safe battery joins; Said pulse control circuit comprises and is used for closing to have no progeny at drive circuit making drive circuit recover the single-shot trigger circuit of opening again automatically that the output of said bidirectional switch circuit and drive circuit joins.
Above-mentioned a kind of intrinsically safe battery with self-recovering function; It is characterized in that: said reference circuit comprises voltage-stabiliser tube ZD1, capacitor C 3 and resistance R 2; The positive pole of said resistance R 2 one ends and non-intrinsically safe safe battery joins; The anode of the other end of said resistance R 2 and voltage-stabiliser tube ZD1 all joins with the input of overcurrent and short circuit discrimination circuit, the minus earth of said voltage-stabiliser tube ZD1, and said capacitor C 3 is parallelly connected with voltage-stabiliser tube ZD1.
Above-mentioned a kind of intrinsically safe battery with self-recovering function; It is characterized in that: said overcurrent and short circuit discrimination circuit comprise resistance R 9 and resistance R 10; One end of said resistance R 9 and the negative pole of non-intrinsically safe safe battery join; One end of said resistance R 10 is the input of overcurrent and short circuit discrimination circuit, and the other end of the other end of said resistance R 9 and resistance R 10 joins and is the output of overcurrent and short circuit discrimination circuit.
Above-mentioned a kind of intrinsically safe battery with self-recovering function; It is characterized in that: said current detection circuit comprises resistance R 5; One end of said resistance R 5 and the cathode output end of bidirectional switch circuit join and ground connection, and an end of the other end of said resistance R 5 and resistance R 9 joins.
Above-mentioned a kind of intrinsically safe battery with self-recovering function; It is characterized in that: said single-shot trigger circuit comprises 555 timer U2, resistance R 11, R12, R13 and R14 and capacitor C 4, C5 and C6; Said pulse control circuit comprises that also the in-phase input end of comparator U1, said comparator U1 and the output of overcurrent and short circuit discrimination circuit join; One end of the pin 2 of the output of said comparator U1 and 555 timer U2, an end of resistance R 11 and resistance R 14 joins; The pin 4 of said 555 timer U2 joins with an end of resistance R 13 and an end of capacitor C 6; The pin 5 of said 555 timer U2 joins with an end of capacitor C 5; Pin 6 and the pin 7 of said 555 timer U2 all join with an end of capacitor C 4 and an end of resistance R 12; The other end of the pin 8 of the power input of said comparator U1,555 timer U2, the other end of resistance R 11, resistance R 13 and the other end of resistance R 12 all join with the anode of voltage-stabiliser tube ZD1; The other end of the pin 1 of the other end of the inverting input of said comparator U1 and earth terminal, resistance R 14,555 timer U2, the other end of capacitor C 6, capacitor C 5, the equal ground connection of the other end of capacitor C 4, the pin 3 of said 555 timer U2 is the output of pulse control circuit.
Above-mentioned a kind of intrinsically safe battery with self-recovering function; It is characterized in that: said drive circuit comprises NPN type triode VT2 and VT3 and resistance R 3, R4, R6, R7 and R8; One end of said resistance R 8 and the output of pulse control circuit join; The base stage of one end of the other end of said resistance R 8 and resistance R 7 and NPN type triode VT3 is joined; One end of the collector electrode of said NPN type triode VT3 and an end of resistance R 4, resistance R 6 and the base stage of NPN type triode VT2 are joined; The positive pole of the other end of said resistance R 4 and non-intrinsically safe safe battery joins; The collector electrode of said NPN type triode VT2 and an end of resistance R 3 join, the equal ground connection of emitter of the emitter of the other end of said resistance R 7, NPN type triode VT3, the other end of resistance R 6 and NPN type triode VT2, and the other end of said resistance R 3 is the output of drive circuit.
Above-mentioned a kind of intrinsically safe battery with self-recovering function; It is characterized in that: said bidirectional switch circuit comprises resistance R 1, positive-negative-positive triode VT1 and diode D1; The emitter of one end of said resistance R 1, positive-negative-positive triode VT1 and the negative electrode of diode D1 all join with the positive pole of non-intrinsically safe safe battery; The base stage of the other end of said resistance R 1 and positive-negative-positive triode VT1 is joined and is joined with the output of drive circuit; The collector electrode of said positive-negative-positive triode VT1 and diode D1 anode join and are the cathode output end of power switch circuit, and the cathode output end of said power switch circuit and the positive pole of load join.
Above-mentioned a kind of intrinsically safe battery with self-recovering function; It is characterized in that: said bidirectional switch circuit comprises NPN type triode VT5, positive-negative-positive triode VT1 and VT4 and resistance R 1, R15, R16, R17 and R18; The collector electrode of the emitter of one end of said resistance R 1, positive-negative-positive triode VT1 and positive-negative-positive triode VT4 all joins with the positive pole of non-intrinsically safe safe battery; The base stage of the other end of said resistance R 1 and positive-negative-positive triode VT1 is joined and is joined with the output of drive circuit; One end of the emitter of the collector electrode of said positive-negative-positive triode VT1 and positive-negative-positive triode VT4, an end of resistance R 15 and resistance R 16 joins and is the cathode output end of power switch circuit; The other end of the base stage of said positive-negative-positive triode VT4 and an end of resistance R 17 and resistance R 15 joins; The collector electrode of the other end of said resistance R 17 and NPN type triode VT5 joins; The base stage of said NPN type triode VT5 is joined with the other end of resistance R 16 and an end of resistance R 18; The emitter of said NPN type triode VT5 and the equal ground connection of the other end of resistance R 18 and be the cathode output end of power switch circuit, the cathode output end of said power switch circuit and the positive pole of load join, and the cathode output end of said power switch circuit and the negative pole of load join.
The present invention compared with prior art has the following advantages:
1, the current limit circuit of intrinsically safe battery of the present invention is simple in structure, novel and reasonable design, and it is convenient to realize.
2, pulse control circuit of the present invention comprises and is used for closing to have no progeny at drive circuit making drive circuit recover the single-shot trigger circuit of opening again automatically; Make the present invention have self-recovering function; When overcurrent or short trouble generation; Bidirectional switch circuit forward path is recovered conducting state automatically behind certain hour, guarantee that fault eliminating back battery can also continue to the load energy supply.
3, bidirectional switch circuit of the present invention has the function of two-way admittance; Make the non-intrinsically safe safe battery under the situation of off-capacity, can oppositely give the charging of non-intrinsically safe safe battery, guarantee that the non-intrinsically safe safe battery can be applied in the risk environment safely and steadly.
4, complete function of the present invention; The output limit that has not only realized battery can act on; Its bidirectional switch circuit can be realized the charge and discharge function of battery; Also have simultaneously and when fault such as short circuit, overcurrent occurring, implement thorough turn-off protection and self-healing characteristics, can guarantee that fault gets rid of back non-intrinsically safe safe battery and give the load energy supply again.
In sum, the present invention is simple in structure, novel and reasonable design, and it is convenient to realize, has self-recovering function, can improve the intrinsic safety power output, and practical, result of use is good, is convenient to promote the use of.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
Fig. 2 is the circuit theory diagrams of the embodiment of the invention 1.
Fig. 3 is the circuit theory diagrams of the embodiment of the invention 2.
Description of reference numerals:
1-non-intrinsically safe safe battery; 2-bidirectional switch circuit; The 3-reference circuit;
The 4-current detection circuit; 5-overcurrent and short circuit discrimination circuit; The 6-pulse control circuit;
The 7-drive circuit; The 8-load.
Embodiment
As shown in Figure 1; The present invention includes non-intrinsically safe safe battery 1 and be connected on non-intrinsically safe safe battery 1 and load 8 between current limit circuit; Said current limit circuit comprises the current detection circuit 4 that is connected between non-intrinsically safe safe battery 1 and the load 8 and is used for realizing bidirectional switch circuit 2 that the circuit electric energy inputs or outputs, joins with the output of bidirectional switch circuit 2 and is used for the real-time detection circuit size of current, join with the output of current detection circuit 4 and be used to judge overcurrent that overcurrent or short circuit phenomenon whether have occurred and short circuit discrimination circuit 5, join with the output of overcurrent and short circuit discrimination circuit 5 and be used to produce the pulse control circuit 6 of pulse control signal and join with the output of pulse control circuit 6 and be used to control the drive circuit 7 of bidirectional switch circuit 2 conducting forward or backwards; The input of said overcurrent and short circuit discrimination circuit 5 is connected to and is used to the reference circuit 3 that overcurrent and short circuit discrimination circuit 5 provide the discrimination standard signal; Said reference circuit 3 joins with the output of non-intrinsically safe safe battery 1; Said pulse control circuit 6 comprises and is used for closing the single-shot trigger circuit of having no progeny the automatic again recovery of drive circuit 7 being opened at drive circuit 7 that said bidirectional switch circuit 2 joins with the output of drive circuit 7.
In conjunction with Fig. 2; In the present embodiment; Said reference circuit 3 comprises voltage-stabiliser tube ZD1, capacitor C 3 and resistance R 2, and the positive pole of said resistance R 2 one ends and non-intrinsically safe safe battery 1 joins, and the anode of the other end of said resistance R 2 and voltage-stabiliser tube ZD1 all joins with the input of overcurrent and short circuit discrimination circuit 5; The minus earth of said voltage-stabiliser tube ZD1, said capacitor C 3 is parallelly connected with voltage-stabiliser tube ZD1.
In the present embodiment; Said overcurrent and short circuit discrimination circuit 5 comprise resistance R 9 and resistance R 10; One end of said resistance R 9 and the negative pole of non-intrinsically safe safe battery 1 join; One end of said resistance R 10 is the input of overcurrent and short circuit discrimination circuit 5, and the other end of the other end of said resistance R 9 and resistance R 10 joins and is the output of overcurrent and short circuit discrimination circuit 5.
In the present embodiment, said current detection circuit 4 comprises resistance R 5, and an end of said resistance R 5 and the cathode output end of bidirectional switch circuit 2 join and ground connection, and an end of the other end of said resistance R 5 and resistance R 9 joins.
In the present embodiment; Said single-shot trigger circuit comprises 555 timer U2, resistance R 11, R12, R13 and R14 and capacitor C 4, C5 and C6; Said pulse control circuit 6 comprises that also the in-phase input end of comparator U1, said comparator U1 and the output of overcurrent and short circuit discrimination circuit 5 join; One end of the pin 2 of the output of said comparator U1 and 555 timer U2, an end of resistance R 11 and resistance R 14 joins; The pin 4 of said 555 timer U2 joins with an end of resistance R 13 and an end of capacitor C 6; The pin 5 of said 555 timer U2 joins with an end of capacitor C 5; Pin 6 and the pin 7 of said 555 timer U2 all join with an end of capacitor C 4 and an end of resistance R 12; The other end of the pin 8 of the power input of said comparator U1,555 timer U2, the other end of resistance R 11, resistance R 13 and the other end of resistance R 12 all join with the anode of voltage-stabiliser tube ZD1; The other end of the pin 1 of the other end of the inverting input of said comparator U1 and earth terminal, resistance R 14,555 timer U2, the other end of capacitor C 6, capacitor C 5, the equal ground connection of the other end of capacitor C 4, the pin 3 of said 555 timer U2 is the output of pulse control circuit 6.
In the present embodiment; Said drive circuit 7 comprises NPN type triode VT2 and VT3 and resistance R 3, R4, R6, R7 and R8; One end of said resistance R 8 and the output of pulse control circuit 6 join; The base stage of one end of the other end of said resistance R 8 and resistance R 7 and NPN type triode VT3 is joined; One end of the collector electrode of said NPN type triode VT3 and an end of resistance R 4, resistance R 6 and the base stage of NPN type triode VT2 are joined, and the positive pole of the other end of said resistance R 4 and non-intrinsically safe safe battery 1 joins, and the collector electrode of said NPN type triode VT2 and an end of resistance R 3 join; The equal ground connection of emitter of the emitter of the other end of said resistance R 7, NPN type triode VT3, the other end of resistance R 6 and NPN type triode VT2, the other end of said resistance R 3 is the output of drive circuit 7.
In the present embodiment; Said bidirectional switch circuit 2 comprises resistance R 1, positive-negative-positive triode VT1 and diode D1; The emitter of one end of said resistance R 1, positive-negative-positive triode VT1 and the negative electrode of diode D1 all join with the positive pole of non-intrinsically safe safe battery 1; The base stage of the other end of said resistance R 1 and positive-negative-positive triode VT1 is joined and is joined with the output of drive circuit 7; The collector electrode of said positive-negative-positive triode VT1 and diode D1 anode join and are the cathode output end of bidirectional switch circuit 2, and the positive pole of the cathode output end of said bidirectional switch circuit 2 and load 8 joins.
In conjunction with Fig. 3; What present embodiment and embodiment 1 were different is: said bidirectional switch circuit 2 comprises NPN type triode VT5, positive-negative-positive triode VT1 and VT4 and resistance R 1, R15, R16, R17 and R18; The collector electrode of the emitter of one end of said resistance R 1, positive-negative-positive triode VT1 and positive-negative-positive triode VT4 all joins with the positive pole of non-intrinsically safe safe battery 1; The base stage of the other end of said resistance R 1 and positive-negative-positive triode VT1 is joined and is joined with the output of drive circuit 7; One end of the emitter of the collector electrode of said positive-negative-positive triode VT1 and positive-negative-positive triode VT4, an end of resistance R 15 and resistance R 16 joins and is the cathode output end of bidirectional switch circuit 2; The other end of the base stage of said positive-negative-positive triode VT4 and an end of resistance R 17 and resistance R 15 joins; The collector electrode of the other end of said resistance R 17 and NPN type triode VT5 joins; The base stage of said NPN type triode VT5 is joined with the other end of resistance R 16 and an end of resistance R 18; The emitter of said NPN type triode VT5 and the equal ground connection of the other end of resistance R 18 and be the cathode output end of bidirectional switch circuit 2, the positive pole of the cathode output end of said bidirectional switch circuit 2 and load 8 joins, and the negative pole of the cathode output end of said bidirectional switch circuit 2 and load 8 joins.The remaining circuit structure is all identical with embodiment 1
The operation principle of the present invention and the course of work are: under the initial condition, the output of overcurrent and short circuit discrimination circuit 5 be output as on the occasion of, the input in the same way of comparator U1 is a positive voltage in the pulse control circuit 6; The output output high level of comparator U1, the pin 2 of 555 timer U2 is a high level, the pin 3 of 555 timer U2 is a low level; The base stage of NPN type triode VT3 is a low level, and NPN type triode VT3 ends, and the current collection of NPN type triode VT3 is high level very; The base stage of NPN type triode VT2 is a high level, NPN type triode VT2 conducting, and the collector potential of NPN type triode VT2 is dragged down; The base stage of positive-negative-positive triode VT1 is a low level, positive-negative-positive triode VT1 conducting, and non-intrinsically safe safe battery 1 begins to load 8 energy to be provided; The voltage on the resistance R 5 is negative value in the current detection circuit 4 at this moment, and when being lower than current-limiting points, the pressure drop on the resistance R 5 is less; The input in the same way of comparator U1 is a positive voltage in the pulse control circuit 6, the output output high level of comparator U1, and the pin 2 of 555 timer U2 is a high level; Pin 3 output low levels of 555 timer U2, non-intrinsically safe safe battery 1 continues energy to load 8 to be provided.When fault such as overcurrent, short circuit occurring, it is big that the pressure drop in the current detection circuit 4 on the resistance R 5 becomes, and the input in the same way of comparator U1 becomes negative voltage; The output of comparator U1 becomes low level, and the pin 2 of 555 timer U2 is a low level, the pin 3 output high level of 555 timer U2; NPN type triode VT3 conducting, the collector voltage of NPN type triode VT3 is for being dragged down, and the base stage of NPN type triode VT2 is a low level; NPN type triode VT2 ends; The base stage of positive-negative-positive triode VT1 is a high level, and positive-negative-positive triode VT1 ends, and non-intrinsically safe safe battery 1 stops to load 8 energy being provided.At this moment, in embodiment 1, when the output end voltage of bidirectional switch circuit 2 is higher than non-intrinsically safe safe battery 1 voltage and diode D1 conduction voltage drop sum, diode D1 conducting, bidirectional switch circuit 2 export to 1 reverse charging of non-intrinsically safe safe battery; In embodiment 2, the backward diode D1 of bidirectional switch circuit among the embodiment 1 is replaced with positive-negative-positive triode VT4, and form conducting and the shutoff that control circuit removes to control positive-negative-positive triode VT4 by resistance R 15, R16, R17, R18 and NPN type triode VT5; When the voltage on the divider resistance R18 surpasses the conducting voltage of triode VT5 emitter; Triode VT5 conducting, triode VT4 base potential is dragged down, triode VT4 conducting; Bidirectional switch circuit 2 export to 1 reverse charging of non-intrinsically safe safe battery; When the last voltage of divider resistance R18 was lower than the conducting voltage of triode VT5 emitter, triode VT5 ended, and triode VT4 base stage is a high level; Triode VT4 turn-offs, and the output of bidirectional switch circuit 2 stops to 1 reverse charging of non-intrinsically safe safe battery.
Because in the pulse control circuit 6 single-shot trigger circuit that is made up of 555 timer U2 is arranged, therefore, the input signal on the pin 2 of 555 timer U2 is the moment of low-voltage by high-voltage variable; Comparator U1 power input voltage begins to be charged to the regular hour to capacitor C 4 chargings through resistance R 12, and saltus step takes place the output voltage of 555 timer U2 automatically; Become low level by high level, positive-negative-positive triode VT1 conducting, at this moment; In embodiment 1; Diode D1 ends, and circuit recovers normal operating conditions again, and non-intrinsically safe safe battery 1 begins to load 8 energy to be provided; In embodiment 2, divider resistance R18 goes up the conducting voltage that voltage is lower than triode VT5 emitting stage, and triode VT5 ends, and triode VT4 base stage is a high level, and triode VT4 turn-offs, and non-intrinsically safe safe battery 1 restarts to load 8 energy to be provided.
In sum; The present invention has realized that not only the limit of battery can act on; Its bidirectional switch circuit 2 can be realized the charge and discharge function of battery; Also have simultaneously and when fault such as short circuit, overcurrent occurring, implement thorough turn-off protection and self-healing characteristics, can guarantee that fault gets rid of back non-intrinsically safe safe battery 1 and continue to give load 8 energy supplies.The present invention is mainly used in the risk environment electric power systems such as colliery, petrochemical industry, reaches the essential safety requirement.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection range of technical scheme of the present invention.
Claims (8)
1. intrinsically safe battery with self-recovering function; Comprise non-intrinsically safe safe battery (1) and be connected on non-intrinsically safe safe battery (1) and load (8) between current limit circuit; It is characterized in that: said current limit circuit comprises the current detection circuit (4) that is connected between non-intrinsically safe safe battery (1) and the load (8) and is used for realizing bidirectional switch circuit (2) that the circuit electric energy inputs or outputs, joins with the output of bidirectional switch circuit (2) and is used for the real-time detection circuit size of current, join with the output of current detection circuit (4) and be used to judge overcurrent that overcurrent or short circuit phenomenon whether have occurred and short circuit discrimination circuit (5), join with the output of overcurrent and short circuit discrimination circuit (5) and be used to produce the pulse control circuit (6) of pulse control signal and join with the output of pulse control circuit (6) and be used to control the drive circuit (7) of bidirectional switch circuit (2) conducting forward or backwards; The input of said overcurrent and short circuit discrimination circuit (5) is connected to and is used to the reference circuit (3) that overcurrent and short circuit discrimination circuit (5) provide the discrimination standard signal; Said reference circuit (3) joins with the output of non-intrinsically safe safe battery (1); Said pulse control circuit (6) comprises and is used for closing the single-shot trigger circuit of having no progeny the automatic again recovery of drive circuit (7) being opened at drive circuit (7) that said bidirectional switch circuit (2) joins with the output of drive circuit (7).
2. according to the described a kind of intrinsically safe battery of claim 1 with self-recovering function; It is characterized in that: said reference circuit (3) comprises voltage-stabiliser tube ZD1, capacitor C 3 and resistance R 2; The positive pole of said resistance R 2 one ends and non-intrinsically safe safe battery (1) joins; The anode of the other end of said resistance R 2 and voltage-stabiliser tube ZD1 all joins with the input of overcurrent and short circuit discrimination circuit (5), the minus earth of said voltage-stabiliser tube ZD1, and said capacitor C 3 is parallelly connected with voltage-stabiliser tube ZD1.
3. according to the described a kind of intrinsically safe battery of claim 2 with self-recovering function; It is characterized in that: said overcurrent and short circuit discrimination circuit (5) comprise resistance R 9 and resistance R 10; The negative pole of one end of said resistance R 9 and non-intrinsically safe safe battery (1) joins; One end of said resistance R 10 is the input of overcurrent and short circuit discrimination circuit (5), and the other end of the other end of said resistance R 9 and resistance R 10 joins and is the output of overcurrent and short circuit discrimination circuit (5).
4. according to the described a kind of intrinsically safe battery of claim 3 with self-recovering function; It is characterized in that: said current detection circuit (4) comprises resistance R 5; The cathode output end of one end of said resistance R 5 and bidirectional switch circuit (2) joins and ground connection, and an end of the other end of said resistance R 5 and resistance R 9 joins.
5. according to the described a kind of intrinsically safe battery of claim 4 with self-recovering function; It is characterized in that: said single-shot trigger circuit comprises 555 timer U2, resistance R 11, R12, R13 and R14 and capacitor C 4, C5 and C6; Said pulse control circuit (6) comprises that also the in-phase input end of comparator U1, said comparator U1 and the output of overcurrent and short circuit discrimination circuit (5) join; One end of the pin 2 of the output of said comparator U1 and 555 timer U2, an end of resistance R 11 and resistance R 14 joins; The pin 4 of said 555 timer U2 joins with an end of resistance R 13 and an end of capacitor C 6; The pin 5 of said 555 timer U2 joins with an end of capacitor C 5; Pin 6 and the pin 7 of said 555 timer U2 all join with an end of capacitor C 4 and an end of resistance R 12; The other end of the pin 8 of the power input of said comparator U1,555 timer U2, the other end of resistance R 11, resistance R 13 and the other end of resistance R 12 all join with the anode of voltage-stabiliser tube ZD1; The other end of the pin 1 of the other end of the inverting input of said comparator U1 and earth terminal, resistance R 14,555 timer U2, the other end of capacitor C 6, capacitor C 5, the equal ground connection of the other end of capacitor C 4, the pin 3 of said 555 timer U2 is the output of pulse control circuit (6).
6. according to the described a kind of intrinsically safe battery of claim 5 with self-recovering function; It is characterized in that: said drive circuit (7) comprises NPN type triode VT2 and VT3 and resistance R 3, R4, R6, R7 and R8; The output of one end of said resistance R 8 and pulse control circuit (6) joins; The base stage of one end of the other end of said resistance R 8 and resistance R 7 and NPN type triode VT 3 is joined; One end of the collector electrode of said NPN type triode VT3 and an end of resistance R 4, resistance R 6 and the base stage of NPN type triode VT2 are joined; The positive pole of the other end of said resistance R 4 and non-intrinsically safe safe battery (1) joins; The collector electrode of said NPN type triode VT2 and an end of resistance R 3 join, the equal ground connection of emitter of the emitter of the other end of said resistance R 7, NPN type triode VT3, the other end of resistance R 6 and NPN type triode VT2, and the other end of said resistance R 3 is the output of drive circuit (7).
7. according to the described a kind of intrinsically safe battery of claim 6 with self-recovering function; It is characterized in that: said bidirectional switch circuit (2) comprises resistance R 1, positive-negative-positive triode VT1 and diode D1; The emitter of one end of said resistance R 1, positive-negative-positive triode VT1 and the negative electrode of diode D1 all join with the positive pole of non-intrinsically safe safe battery (1); The base stage of the other end of said resistance R 1 and positive-negative-positive triode VT1 is joined and is joined with the output of drive circuit (7); The collector electrode of said positive-negative-positive triode VT1 and diode D1 anode join and are the cathode output end of bidirectional switch circuit (2), and the positive pole of the cathode output end of said bidirectional switch circuit (2) and load (8) joins.
8. according to the described a kind of intrinsically safe battery of claim 6 with self-recovering function; It is characterized in that: said bidirectional switch circuit (2) comprises NPN type triode VT5, positive-negative-positive triode VT1 and VT4 and resistance R 1, R15, R16, R17 and R18; The collector electrode of the emitter of one end of said resistance R 1, positive-negative-positive triode VT1 and positive-negative-positive triode VT4 all joins with the positive pole of non-intrinsically safe safe battery (1); The base stage of the other end of said resistance R 1 and positive-negative-positive triode VT1 is joined and is joined with the output of drive circuit (7); One end of the emitter of the collector electrode of said positive-negative-positive triode VT1 and positive-negative-positive triode VT4, an end of resistance R 15 and resistance R 16 joins and is the cathode output end of bidirectional switch circuit (2); The other end of the base stage of said positive-negative-positive triode VT4 and an end of resistance R 17 and resistance R 15 joins; The collector electrode of the other end of said resistance R 17 and NPN type triode VT5 joins; The base stage of said NPN type triode VT5 is joined with the other end of resistance R 16 and an end of resistance R 18; The emitter of said NPN type triode VT5 and the equal ground connection of the other end of resistance R 18 and be the cathode output end of bidirectional switch circuit (2), the positive pole of the cathode output end of said bidirectional switch circuit (2) and load (8) joins, and the negative pole of the cathode output end of said bidirectional switch circuit (2) and load (8) joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110452452 CN102412613B (en) | 2011-12-29 | 2011-12-29 | Intrinsically safe battery with self recovery function |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104426141A (en) * | 2013-09-10 | 2015-03-18 | 上海空间电源研究所 | Accumulator discharging overcurrent protection circuit and method |
| CN104843625A (en) * | 2014-02-19 | 2015-08-19 | 北京长吉加油设备有限公司 | Handheld fuel distributer control equipment having current limiting battery set |
| CN105226977A (en) * | 2014-05-29 | 2016-01-06 | 艾默生网络能源有限公司 | A kind of control method of inverter, device and uninterrupted power supply |
| CN106026066A (en) * | 2016-07-29 | 2016-10-12 | 阳光电源股份有限公司 | Direct-current source protecting device and method |
| CN108173236A (en) * | 2017-12-26 | 2018-06-15 | 中煤科工集团重庆研究院有限公司 | Jamproof mine safety grid |
| WO2022152216A1 (en) * | 2021-01-13 | 2022-07-21 | 深圳市华思旭科技有限公司 | Battery protection circuit, and device for drying object |
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| CN102142699A (en) * | 2011-01-12 | 2011-08-03 | 肖相如 | Method for generating and controlling charging and discharging pulses of pulse charging device |
| CN202405825U (en) * | 2011-12-29 | 2012-08-29 | 西安科技大学 | Intrinsically safe battery with function of self restoration |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104426141A (en) * | 2013-09-10 | 2015-03-18 | 上海空间电源研究所 | Accumulator discharging overcurrent protection circuit and method |
| CN104843625A (en) * | 2014-02-19 | 2015-08-19 | 北京长吉加油设备有限公司 | Handheld fuel distributer control equipment having current limiting battery set |
| CN105226977A (en) * | 2014-05-29 | 2016-01-06 | 艾默生网络能源有限公司 | A kind of control method of inverter, device and uninterrupted power supply |
| CN105226977B (en) * | 2014-05-29 | 2018-02-16 | 维谛技术有限公司 | A kind of control method of inverter, device and uninterrupted power source |
| CN106026066A (en) * | 2016-07-29 | 2016-10-12 | 阳光电源股份有限公司 | Direct-current source protecting device and method |
| CN106026066B (en) * | 2016-07-29 | 2018-10-02 | 阳光电源股份有限公司 | A kind of direct current electrical source protecting equipment and method |
| CN108173236A (en) * | 2017-12-26 | 2018-06-15 | 中煤科工集团重庆研究院有限公司 | Jamproof mine safety grid |
| WO2022152216A1 (en) * | 2021-01-13 | 2022-07-21 | 深圳市华思旭科技有限公司 | Battery protection circuit, and device for drying object |
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