CN203981042U - The isolated mining exploder of intrinsically safe circuit - Google Patents
The isolated mining exploder of intrinsically safe circuit Download PDFInfo
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- CN203981042U CN203981042U CN201420410917.4U CN201420410917U CN203981042U CN 203981042 U CN203981042 U CN 203981042U CN 201420410917 U CN201420410917 U CN 201420410917U CN 203981042 U CN203981042 U CN 203981042U
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Abstract
The isolated mining exploder of intrinsically safe circuit of the present utility model, comprise battery, multilayer ms switch, transformer, accumulate capacitor C 7, the first Voltage stabilizing module, constant-current source module, blow out bus positive pole, blow out bus negative pole and microcontroller, be characterised in that: blowing out No. 1 pair of connecting wires of bus negative pole in K1 floor switch, the normally closed point of relay K 4 is connected with power supply ground gnd; No. 2 pair of connecting wires and No. 3 all not wiring of pair of connecting wires in No. 2 pair of connecting wires, K3 floor switch in No. 3 pair of connecting wires, K2 floor switch in K1 floor switch; The base stage of triode Q5 forms isolated controlling end dr1 through resistance R 8, and the base stage of triode Q6 forms charging control end dr2 through resistance R 17.Mining exploder of the present utility model, effectively intrinsically safe circuit and intrinsically safe circuit part are kept apart by multilayer ms switch, relay K 2, K3, K4 and K5 and triode Q5, Q6, ensure the security that whole exploder uses in coal mine environment, circuit structure is rationally distributed, beneficial effect is outstanding, is convenient to application.
Description
Technical field
The utility model relates to the isolated mining exploder of a kind of intrinsically safe circuit, in particular, relates in particular to a kind of mining exploder of realizing intrinsically safe circuit isolation by multilayer ms switch, relay and triode.
Background technology
Mining exploder is as the apparatus of igniting the rear electric cap of series connection, and for the particularity of colliery operation occasion, intrinsic safety characteristic and explosion-resistance characteristic to exploder all have strict requirement.The specification (capacity) of exploder is by specified the number expression of igniting electric cap, and its series is: 10,25,50,100,150,200 etc.Why need to design according to the quantity of ignited electric cap the model of exploder, this be because the needed initiation impulse of electric cap of varying number not etc.
Accumulate electric capacity is for storing the energy of igniting electric cap, the circuit that accumulate electric capacity is charged is intrinsically safe circuit, the circuit of measuring network resistance and accumulate electric capacity both end voltage is intrinsically safe circuit, in order to ensure the trouble free service of this exploder, its intrinsically safe circuit and intrinsically safe circuit Partial security need to be kept apart.
Summary of the invention
The utility model, in order to overcome the shortcoming of above-mentioned technical problem, provides a kind of intrinsically safe circuit isolated mining exploder.
The isolated mining exploder of intrinsically safe circuit of the present utility model, comprise battery, multilayer ms switch, transformer, accumulate capacitor C 7, the first Voltage stabilizing module, constant-current source module, blow out bus positive pole, blow out bus negative pole and microcontroller, battery is used for providing electric energy, transformer charges to accumulate capacitor C 7 through voltage doubling rectifing circuit, and explosion-proof bus positive pole and the bus negative pole of blowing out are connected to the two ends at electric cap composition networking; Described multilayer ms switch is made up of K1 layer switch, K2 layer switch and K3 layer switch, includes No. 1 pair of connecting wires, No. 2 pair of connecting wires and No. 3 pair of connecting wires in every layer of switch, and the knob of multilayer ms switch makes to number in different layers switch the conducting simultaneously of identical pair of connecting wires; Its special feature is:
No. 1 pair of connecting wires of the positive pole of battery in K3 floor switch is connected with the input of the first Voltage stabilizing module, the output of the first Voltage stabilizing module is connected with the input of constant-current source module, No. 1 pair of connecting wires of the output of constant-current source module in the normally closed point of the normally closed point of resistance R 25, relay K 3, relay K 2, K2 floor switch with blow out bus positive pole and be connected; The bus negative pole of blowing out is connected with the first terminals of accumulate electric capacity, and the normally closed point of No. 1 pair of connecting wires of bus negative pole in K1 floor switch, relay K 4 of blowing out is connected with power supply ground gnd;
The first side winding of transformer was connected with the input of the first Voltage stabilizing module through the normal battle of relay K 5, No. 2 pair of connecting wires of the second terminals of accumulate capacitor C 7 in K1 floor switch with blow out bus positive pole and be connected, No. 3 pair of connecting wires of the second terminals of accumulate capacitor C 7 in K2 floor with blow out bus negative pole and be connected; No. 2 pair of connecting wires and No. 3 all not wiring of pair of connecting wires in No. 2 pair of connecting wires, K3 floor switch in No. 3 pair of connecting wires, K2 floor switch in K1 floor switch;
One end after the coils from parallel connection of coils of the coil of described relay K 2 and relay K 3 is connected with the positive pole of battery with D2 through diode D3, and the other end was connected with power supply ground gnd through the normal battle of relay K 4; One end of relay K 4 coils is connected with the positive pole of battery through diode D4, D1, the other end is connected with power supply ground gnd through triode Q5, the base stage of triode Q5 through resistance R 16 and power supply be connected, the base stage of triode Q5 forms isolated controlling end dr1 through resistance R 8; One end of relay K 5 coils is connected with the input of the first Voltage stabilizing module, the other end is connected with power supply ground gnd through triode Q6, the base stage of triode Q6 through resistance R 18 and power supply be connected, the base stage of triode Q6 forms charging control end dr2 through resistance R 17; Isolated controlling end dr1 is all connected with the output of microcontroller with charging control end dr2.
The isolated mining exploder of intrinsically safe circuit of the present utility model, the output of described constant-current source module is connected with power supply ground gnd through resistance R 15, capacitor C 21, resistance R 15 forms network resistance measuring junction ad1 with the junction of capacitor C 21, and resistance measurement end ad1 is connected with the input of microcontroller.
The isolated mining exploder of intrinsically safe circuit of the present utility model, comprise the charging voltage measuring circuit being formed by precision photoelectric coupler, the input side of precision photoelectric coupler and accumulate capacitor C 7 are in parallel, the colelctor electrode of outlet side is connected with the output of the first Voltage stabilizing module through resistance R 13, the emitter stage of outlet side is connected with power supply ground gnd through resistance R 2, and the emitter stage of precision photoelectric coupler outlet side forms voltage signal end ar; Voltage signal end ar is connected with the in-phase input end of operational amplifier, the reverse input end of operational amplifier is connected on power supply ground gnd through resistance R 19, the output of operational amplifier forms voltage measurement end ad2, and voltage measurement end ad2 is connected with the input of microcontroller.
The isolated mining exploder of intrinsically safe circuit of the present utility model, described voltage doubling rectifing circuit is made up of capacitor C 18, inductance L 1 and inductance L 2, one end of Circuit Fault on Secondary Transformer is connected with the first terminals of accumulate capacitor C 7, and the other end is connected with the second terminals of accumulate capacitor C 7 through capacitor C 18, diode D18 and inductance L 2 successively; An end after described inductance L 1 is connected with diode D22 is connected to the first terminals of accumulate capacitor C 7, and the other end is connected to the junction of capacitor C 18 and diode D18.
The beneficial effects of the utility model are: mining exploder of the present utility model, the positive pole of battery is connected with the first constant-current source module input through No. 1 pair of connecting wires of K3 floor switch, the first side winding of transformer was connected with the input of the first constant-current source module through the normal battle of relay K 5, by the control of multilayer ms switch, realize the power supply to resistance measurement part and charging circuit.The output of the constant-current source module of measuring for network resistance through No. 1 pair of connecting wires of the normally closed point of relay K 2 and K3, K2 floor switch with blow out bus positive pole and be connected, make can realize the measurement to network resistance under the control of ms switch.The coil of relay K 2 and K3 was connected with power supply ground gnd through the normal battle of relay K 4, and the coil of relay K 4 through triode Q5 and power supply be connected, by the height control of Electric potentials to isolated controlling end dr1, realize the isolation of intrinsically safe circuit and intrinsically safe circuit part.
The coil of relay K 5 is connected with power supply ground gnd through triode Q6, by the control to triode Q6 on off operating mode, has realized the control of transformer to accumulate capacitor charging.Be parallel to the precision photoelectric coupler at accumulate electric capacity two ends by input is set, and utilize operational amplifier to amplify the signal of precision photoelectric coupler output, formed network resistance measuring junction ad2.
Mining exploder of the present utility model, effectively intrinsically safe circuit and intrinsically safe circuit part are kept apart by multilayer ms switch, relay K 2, K3, K4 and K5 and triode Q5, Q6, ensure the security that whole exploder uses in coal mine environment, circuit structure is rationally distributed, beneficial effect is outstanding, is convenient to application.
Brief description of the drawings
Fig. 1 is the schematic diagram of the isolated mining exploder of intrinsically safe circuit of the present utility model;
Fig. 2 is the circuit diagram of the isolated mining exploder of intrinsically safe circuit of the present utility model.
In figure: 1 battery, 2 multilayer ms switch, 3 blow out bus positive pole, and 4 blow out bus negative pole, 5 first Voltage stabilizing modules, 6 constant-current source modules, 7 relay K 3,8 relay K 2,9 relay K 4,10 relay K 5,11 transformers, 12 accumulate capacitor C 7,13 second Voltage stabilizing modules, 14 current sensors, 15 precision photoelectric couplers, 16 operational amplifiers, 17 comparators, 18 line bank sockets, 19 voltage doubling rectifing circuits.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1, provided the schematic diagram of the isolated mining exploder of intrinsically safe circuit of the present utility model, it comprises that battery 1, multilayer ms switch 2, the first Voltage stabilizing module 5, constant-current source module 6, relay K 2, relay K 3, relay K 4, relay K 5, transformer 11, voltage doubling rectifing circuit 19, accumulate electric capacity 12 and precision photoelectric coupler 15 form; The work that battery 1 is whole exploder provides electric energy, and the output of the first Voltage stabilizing module 5 is connected with precision photoelectric coupler 15 with constant-current source 6, stable voltage is provided to constant-current source 6 and precision photoelectric coupler 15.Transformer 11 charges to accumulate capacitor C 7 by voltage doubling rectifing circuit 19, and precision photoelectric coupler 15 is connected to the two ends of accumulate capacitor C 7, to realize the measurement to accumulate capacitor C 7 both end voltage.
As shown in Figure 2, provide the circuit diagram of the isolated mining exploder of intrinsically safe circuit of the present utility model, shown multilayer ms switch 2 is made up of K1 layer switch, K2 layer switch and K3 layer switch, in every layer of switch, include No. 1 pair of connecting wires, No. 2 pair of connecting wires and No. 3 pair of connecting wires, and number identical pair of connecting wires and be positioned at corresponding position; The knob of multilayer ms switch 2 can make to number on different layers the conducting simultaneously of identical pair of connecting wires.No. 1 pair of connecting wires of the positive pole of battery 1 in K3 floor switch is connected with the input of the first Voltage stabilizing module 5, and the negative pole of battery 1 forms power supply ground gnd.
The output of the first shown Voltage stabilizing module 5 is connected with the input of constant-current source module 6, the output of constant-current source module 6 through the normally closed point of the normally closed point of resistance R 25, relay K 3, relay K 2 with blow out bus positive pole 3 and be connected, blow out No. 1 pair of connecting wires of bus negative pole 4 in K1 floor switch, the normally closed point of relay K 4 to be connected with power supply ground gnd.The series circuit that the output of constant-current source module 6 also forms with capacitor C 21 through resistance R 15 is connected with power supply ground gnd, and resistance R 15 forms network resistance measuring junction ad1 with the junction of capacitor C 21.In the time that the knob of multilayer ms switch 2 is positioned on No. 1 wiring position, constant-current source module 6 can be to Injection Current in networking, and microcontroller, by detecting the signal of networking ad1 end, can obtain the size of network resistance value.
Shown in relay K 2 one end after being in parallel with the coil of relay K 3 be connected with the positive pole of battery 1 with D2 through diode D3, the other end was connected with power supply ground gnd through the normal battle of relay K 4; One end of relay K 4 coils is connected with the positive pole of battery 1 through diode D4, D1, the other end is connected with the colelctor electrode of triode Q5, the emitter stage of triode Q5 is connected with power supply ground gnd, the base stage of triode Q5 is connected with power supply ground gnd through resistance R 16, form isolated controlling end dr1 through resistance R 8, isolated controlling end dr1 is connected with the control end of microcontroller.The first side winding of transformer 11 is connected on the input of the first Voltage stabilizing module 5 after the normal battle of relay K 5, one end of the coil of relay K 5 is connected with the input of the first Voltage stabilizing module 5 through diode D5, D6, the other end is connected with the colelctor electrode of triode Q6, and the emitter stage of Q6 is connected with power supply ground gnd; The base stage of Q6 is connected with power supply ground gnd through resistance R 18, forms charging control end dr2 through resistance R 17, and charging control end dr2 is connected with the output of microcontroller.
In the time that network resistance is measured, isolated controlling end dr1, charging control end dr2 should be all in low level state, triode Q5, Q6 all end, in the coil of relay K 4 and K5, all do not have electric current to flow through, Injection Current in the networking that constant-current source module 6 now forms to electric cap, microcontroller is realized the measurement of network resistance through ad1, if network resistance is infinitely great, can judge networking and occur " disconnecting " phenomenon, if network resistance is zero, there is " disconnecting " phenomenon in surperficial networking, realized the diagnosis of networking connection fault.
Connect after fault-free when judging networking, isolated controlling end dr1 is set to high level, triode Q5 conducting, the coil of relay K 4 obtains electric, makes to blow out negative pole 4 to obtain electric with the coil that is connected disconnection, relay K 2 and K3 of power supply ground gnd.Relay K 2 and K3 obtain and disconnect again constant-current source module 6 after electric and blow out being connected of bus positive pole 3, and make constant-current source module 6 no longer to Injection Current in networking, finish the measurement of network resistance.By by isolated controlling end dr1 set, realize the isolation of intrinsic safety part and explosion-proof part in circuit, ensure the safe handling of exploder under coal mine working environment.
Shown transformer 11 charges to accumulate capacitor C 7 by voltage doubling rectifing circuit 19, voltage doubling rectifing circuit 19 is made up of inductance L 1, inductance L 2, capacitor C 18, one end of transformer 11 secondary side winding is connected with the first terminals of accumulate capacitor C 7, and the other end is connected with the second terminals of accumulate capacitor C 7 through capacitor C 18, diode D18, inductance L 2 successively.One end of inductance L 1 is connected to the junction of capacitor C 18 and diode D18, and the other end is connected with the negative pole of diode D22, and the positive pole of diode D22 is connected with the first terminals of accumulate capacitor C 7.In the time that accumulate capacitor C 7 is charged, charging control end dr2 should be in high level state, so that triode Q6 conducting, the coil of relay K 5 obtains electric, make its normal closure of making war, the winding power supply once of battery 1 to transformer, realizes the charging to accumulate capacitor C 7 by multiplication of voltage, the rectification of voltage doubling rectifing circuit 19.
In order according to the network resistance value recording, accumulate capacitor C 7 to be carried out to self adaptation charging, also need to detect the voltage swing at accumulate capacitor C 7 two ends, while reaching certain numerical value with the voltage at convenient accumulate capacitor C 7 two ends, stop the charging of accumulate electric capacity.The tension measuring circuit at accumulate capacitor C 7 two ends is made up of linear coupling controller 15, the input of linear coupling controller 15 is parallel to the two ends of accumulate capacitor C 7, the emitter stage of linear coupling controller 15 outputs is connected with the output of the first Voltage stabilizing module 5 through resistance R 13, the colelctor electrode of output is connected with power supply ground gnd through resistance R 2, and colelctor electrode forms voltage signal end ar, light emitting diode 15 has been realized coupling isolation and linear amplification the to accumulate capacitor C 7 both end voltage.Voltage signal end ar is connected with the in-phase input end of operational amplifier 16, operational amplifier has been realized the further amplification to voltage signal, the output of operational amplifier has formed voltage measurement end ad2, microcontroller is by the measurement to ad2 end signal, can detect the voltage at accumulate capacitor C 7 two ends, when detecting that the voltage at accumulate capacitor C 7 two ends reaches after the size adapting with network resistance, be about to charging control end dr2 and be set to high level, stop charging, voltage and the network resistance at accumulate capacitor C 7 two ends are adapted, both avoided appearance " losing big gun " phenomenon in ignition process, while having avoided ignition again, there is pyrophoric behavio(u)r.
Claims (4)
1. the isolated mining exploder of intrinsically safe circuit, comprise battery (1), multilayer ms switch (2), transformer (11), accumulate capacitor C 7(12), the first Voltage stabilizing module (5), constant-current source module (6), blow out bus positive pole (3), blow out bus negative pole (4) and microcontroller, battery is used for providing electric energy, transformer charges to accumulate capacitor C 7 through voltage doubling rectifing circuit (19), and explosion-proof bus positive pole and the bus negative pole of blowing out are connected to the two ends at electric cap composition networking; Described multilayer ms switch is made up of K1 layer switch, K2 layer switch and K3 layer switch, includes No. 1 pair of connecting wires, No. 2 pair of connecting wires and No. 3 pair of connecting wires in every layer of switch, and the knob of multilayer ms switch makes to number in different layers switch the conducting simultaneously of identical pair of connecting wires; It is characterized in that:
No. 1 pair of connecting wires of the positive pole of battery in K3 floor switch is connected with the input of the first Voltage stabilizing module, the output of the first Voltage stabilizing module is connected with the input of constant-current source module, and the output of constant-current source module is through resistance R 25, relay K 3(7) normally closed point, relay K 2(8) normally closed point, K2 floor switch in No. 1 pair of connecting wires with blow out bus positive pole and be connected; The bus negative pole of blowing out is connected with the first terminals of accumulate electric capacity, and the normally closed point of No. 1 pair of connecting wires of bus negative pole in K1 floor switch, relay K 4 of blowing out is connected with power supply ground gnd;
The first side winding of transformer (11) was connected with the input of the first Voltage stabilizing module through the normal battle of relay K 5, No. 2 pair of connecting wires of the second terminals of accumulate capacitor C 7 in K1 floor switch with blow out bus positive pole and be connected, No. 3 pair of connecting wires of the second terminals of accumulate capacitor C 7 in K2 floor with blow out bus negative pole and be connected; No. 2 pair of connecting wires and No. 3 all not wiring of pair of connecting wires in No. 2 pair of connecting wires, K3 floor switch in No. 3 pair of connecting wires, K2 floor switch in K1 floor switch;
One end after the coils from parallel connection of coils of the coil of described relay K 2 and relay K 3 is connected with the positive pole of battery with D2 through diode D3, and the other end was connected with power supply ground gnd through the normal battle of relay K 4; One end of relay K 4 coils is connected with the positive pole of battery through diode D4, D1, the other end is connected with power supply ground gnd through triode Q5, the base stage of triode Q5 through resistance R 16 and power supply be connected, the base stage of triode Q5 forms isolated controlling end dr1 through resistance R 8; One end of relay K 5 coils is connected with the input of the first Voltage stabilizing module, the other end is connected with power supply ground gnd through triode Q6, the base stage of triode Q6 through resistance R 18 and power supply be connected, the base stage of triode Q6 forms charging control end dr2 through resistance R 17; Isolated controlling end dr1 is all connected with the output of microcontroller with charging control end dr2.
2. the isolated mining exploder of intrinsically safe circuit according to claim 1, it is characterized in that: the output of described constant-current source module (6) is connected with power supply ground gnd through resistance R 15, capacitor C 21, resistance R 15 forms network resistance measuring junction ad1 with the junction of capacitor C 21, and resistance measurement end ad1 is connected with the input of microcontroller.
3. the isolated mining exploder of intrinsically safe circuit according to claim 1 and 2, it is characterized in that: comprise the charging voltage measuring circuit being formed by precision photoelectric coupler (15), the input side of precision photoelectric coupler and accumulate capacitor C 7(12) be in parallel, the colelctor electrode of outlet side is connected with the output of the first Voltage stabilizing module (5) through resistance R 13, the emitter stage of outlet side is connected with power supply ground gnd through resistance R 2, and the emitter stage of precision photoelectric coupler outlet side forms voltage signal end ar; Voltage signal end ar is connected with the in-phase input end of operational amplifier (16), the reverse input end of operational amplifier is connected on power supply ground gnd through resistance R 19, the output of operational amplifier forms voltage measurement end ad2, and voltage measurement end ad2 is connected with the input of microcontroller.
4. the isolated mining exploder of intrinsically safe circuit according to claim 1 and 2, it is characterized in that: described voltage doubling rectifing circuit is made up of capacitor C 18, inductance L 1 and inductance L 2, one end of Circuit Fault on Secondary Transformer is connected with the first terminals of accumulate capacitor C 7, and the other end is connected with the second terminals of accumulate capacitor C 7 through capacitor C 18, diode D18 and inductance L 2 successively; An end after described inductance L 1 is connected with diode D22 is connected to the first terminals of accumulate capacitor C 7, and the other end is connected to the junction of capacitor C 18 and diode D18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410917.4U CN203981042U (en) | 2014-07-24 | 2014-07-24 | The isolated mining exploder of intrinsically safe circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410917.4U CN203981042U (en) | 2014-07-24 | 2014-07-24 | The isolated mining exploder of intrinsically safe circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203981042U true CN203981042U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420410917.4U Withdrawn - After Issue CN203981042U (en) | 2014-07-24 | 2014-07-24 | The isolated mining exploder of intrinsically safe circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203981042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132595A (en) * | 2014-07-24 | 2014-11-05 | 山东隆泰矿业设备有限公司 | Intrinsic-safety circuit isolation type mine exploder |
| CN105824261A (en) * | 2016-05-04 | 2016-08-03 | 徐州五洋科技股份有限公司 | Intrinsically safe circuit for coal mine electric control switch |
-
2014
- 2014-07-24 CN CN201420410917.4U patent/CN203981042U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132595A (en) * | 2014-07-24 | 2014-11-05 | 山东隆泰矿业设备有限公司 | Intrinsic-safety circuit isolation type mine exploder |
| CN104132595B (en) * | 2014-07-24 | 2016-05-18 | 山东隆泰安防科技有限公司 | The isolated mining exploder of intrinsically safe circuit |
| CN105824261A (en) * | 2016-05-04 | 2016-08-03 | 徐州五洋科技股份有限公司 | Intrinsically safe circuit for coal mine electric control switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20160518 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |