CN201242411Y

CN201242411Y - Detonator

Info

Publication number: CN201242411Y
Application number: CNU2008201305011U
Authority: CN
Inventors: 胡笑雅; 陈志文
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-25
Filing date: 2008-06-25
Publication date: 2009-05-20
Anticipated expiration: 2018-06-25

Abstract

The utility model relates to an exploder, which comprises a direct current low-voltage power supply which is arranged in an insulating casing, a transistor current transformer which is connected with the power output end of the direct current low-voltage power supply, a rectification circuit which is connected with the alternating current power output end of the transistor current transformer, an accumulator which is connected with the direct current power output end of the rectification circuit, an over-voltage protection circuit and a voltage indication circuit which are connected with the voltage signal end of the accumulator, and an output timing circuit which is connected with the blasting output control end of the accumulator. The exploder has the advantages of lightness, convenient carrying and safe use.

Description

Exploder

Technical field

The utility model relates to a kind of mine using blasting machine.

Background technology

Existing exploder complex structure, volume is big, heaviness and security reliability are relatively poor, far can not satisfy the exploitation in coal seam and the needs of extraction industry, the exploder of the particularly existing electric cap that detonates is because heavy, make the labor operation burden of workman in the down-hole, hate and be inconvenient to carry, also influenced production efficiency thus to a certain extent.

The utility model content

Technical problem to be solved in the utility model provides a kind of exploder light and handy, safe in utilization and easy to carry.

For solving the problems of the technologies described above; the utility model provides a kind of exploder, the overvoltage crowbar that comprise the Dc low voltage power supply of being located in the insulation shell, the trnasistor converter that links to each other with the power output end of Dc low voltage power supply, the rectification circuit that links to each other with the alternating current output of trnasistor converter, the accumulator that links to each other with the dc power output end of rectification circuit, links to each other and voltage indicating circuit with the voltage signal end of accumulator and with the output delay switching circuit that output control terminal links to each other of blowing out of accumulator.

Described trnasistor converter comprises: step-up transformer, first triode, first resistance and second resistance; Described rectification circuit comprises: 1 to 6 diode; Described accumulator comprises: 1 to 3 electrochemical capacitor; Described overvoltage crowbar comprises: second triode and the 3rd triode; Described step-up transformer elementary has first primary coil and second primary coil; The secondary coil of described step-up transformer is the high-tension coil with the first primary coil homophase.

The voltage output end of blowing out of described accumulator is provided with charging and blows out knob.

Described voltage indicating circuit comprises that power supply detects indicator lamp, and power supply detects indicator lamp and power supply constitutes series circuit; The two ends of this series circuit are a pair of test electrode; This is located on the insulation shell test electrode, and power supply detects the luminous end of indicator lamp between a pair of test electrode on the insulation shell.

Described charging is blown out and is connected with the pair of terminals that is used to connect the detonator electrode on the knob.

The accurate big gun voltage output end of described accumulator is provided with charging indicator light; The illuminating part of charging indicator light is located on the described insulation shell and is located between the described pair of terminals.

Described overvoltage crowbar also comprises the voltage-stabiliser tube that is in series with described charging indicator light.

Also comprise the buzzer that the series circuit with described voltage-stabiliser tube and charging indicator light is in parallel, the buzzer place is provided with the 7th diode in the loop.

The utlity model has positive effect: (1) exploder of the present utility model mainly comprises: be located at power supply, step-up transformer, electrochemical capacitor booster circuit and charging in the insulation shell and blow out knob; Therefore has advantage light and handy, easy to carry.Adopt insulation shell safe in utilization to guarantee.(2) in the utility model, insulation shell is provided with a pair of test electrode and power supply and detects indicator lamp, and whether sufficient, made things convenient for use if being convenient to detect power supply, prevents the not enough and situation about can not detonate of power supply.(3) in the utility model, the electrochemical capacitor booster circuit finish boost after, charging indicator light is luminous, with the prompting can begin detonation, easy to use and directly perceived.(4) in the utility model, trnasistor converter is the interchange that low-tension supply (dry cell or battery) is transformed into pulsation, brings the voltage up to hundreds of to several kilovolts through step-up transformer.Rectification becomes high-voltage DC power supply to the alternating current of high pressure through rectification circuit.The utility model is blown out knob with charging and is rotated on " charging " indicating bit and carry out charging operations in use, and after this power supply is given the main capacitance charging (storing up electric energy) in the accumulator.When charging voltage reached load voltage value, the neon lamp of voltage indicating circuit or voltmeter sent optical signal or point out reading.Meanwhile accumulator is exported another signal voltage and is given overvoltage crowbar, and overvoltage crowbar makes the trnasistor converter failure of oscillations (or weakening vibration), thereby the charging of accumulator is stopped (or weakening).Like this, in charging process, can not make the terminal voltage of energy-storage capacitor be higher than load voltage value.When charging voltage was slightly smaller than rated voltage, overvoltage crowbar made trnasistor converter starting oscillation (or strengthening vibration), makes the charging voltage of main capacitance be not less than rated value, keeps constant voltage.After the main capacitance charging voltage surpasses certain voltage, charging indicator light begins luminous, when the main capacitance charging voltage reaches specified position, the knob of charging can being blown out rotates to blows out operation on " blowing out " indicating bit, its electric energy can flow to firing circuit by delay switching circuit when blowing out, and the back charging indicator light of blowing out extinguishes.(5) in the utility model, except that controlling the trnasistor converter with overvoltage crowbar, also available voltage-stabiliser tube is directly stablized rectification circuit, equally also can reach the purpose of voltage stabilizing.(6) in the utility model, for the output current duration being limited in the safe power supply time (6 milliseconds), the mining explosion-proof type exploder generally is provided with time-limit attachment.Exploder prescribe a time limit method by used device little with, can be divided into: the mechanical type ms switch in limited time, electromagnetic relay in limited time, the high-pressure discharge pipe in limited time and the RC time constant prescribe a time limit etc.The output delay switching circuit links to each other with the output control terminal of blowing out of accumulator.

Description of drawings

Fig. 1 is the circuit block diagram of exploder of the present utility model;

Fig. 2 is the shape assumption diagram of exploder of the present utility model;

Fig. 3 is the circuit theory diagrams of exploder of the present utility model.

The specific embodiment

(embodiment 1)

See Fig. 1, the overvoltage crowbar 4 that the exploder of present embodiment comprises the Dc low voltage power supply E that is located in the insulation shell 7, the trnasistor converter 1 that links to each other with the power output end of Dc low voltage power supply E, the rectification circuit 2 that links to each other with the alternating current output of trnasistor converter 1, the accumulator 3 that links to each other with the dc power output end of rectification circuit 2, link to each other with the voltage signal end of accumulator 3 and voltage indicating circuit 5 and with the output delay switching circuit 6 that output control terminal links to each other of blowing out of accumulator 3.

See Fig. 3, described trnasistor converter 1 comprises: step-up transformer T, the first triode BG1, first resistance R 1 and second resistance R 2; Described rectification circuit 2 comprises: 1 to 6 diode; Described accumulator 3 comprises: 1 to 3 electrochemical capacitor; Described overvoltage crowbar 4 comprises: the second triode BG2 and the 3rd triode BG3; Described step-up transformer T elementary has the first primary coil L1 and the second primary coil L2; The secondary coil L3 of described step-up transformer T is the high-tension coil with the first primary coil L1 homophase.

The voltage output end of blowing out of described accumulator 3 is provided with charging and blows out knob N.

Described voltage indicating circuit 5 detects indicator lamp LED for power supply, and power supply detects indicator lamp LED and power supply E constitutes series circuit; The two ends of this series circuit are a pair of test electrode U and V; See Fig. 2, this is located on the insulation shell test electrode U and V, and power supply detects the luminous end of indicator lamp LED between a pair of test electrode U and V on the insulation shell.

See Fig. 3, described charging is blown out and is connected with pair of terminals X and the Y that is used to connect the detonator electrode on the knob N.The voltage output end of blowing out of described accumulator 3 is provided with charging indicator light Z; See Fig. 2, the illuminating part of charging indicator light Z is located on the described insulation shell and is located between described pair of terminals X and the Y.Described overvoltage crowbar 4 also comprises the voltage-stabiliser tube W that is in series with described charging indicator light Z.

Also comprise the buzzer M that the series circuit with described voltage-stabiliser tube W and charging indicator light Z is in parallel, be provided with the 7th diode D7 in the loop, buzzer M place.

The circuit working principle of Fig. 3 is: behind the power connection, power supply E supplies with initial base current Ib of transistor BG1 through resistance R 1, R2 dividing potential drop by base winding L2.Ib amplifies generation collector current Ic through BG.Ic flows through colelctor electrode coil L1, produces magnetic flux in magnetic core of transformer.At this moment, in base winding L2, produce induced voltage U _L2U _L2Ib will further be increased, and the increase of Ib impels Ic further to increase again, forms positive feedback process.

Transistor BG1 is saturated repeatedly automatically, end, and can play the effect of switch, and the secondary coil L3 two ends of transformer T can produce alternating voltage.

Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.

Claims

1, a kind of exploder is characterized in that: comprise the Dc low voltage power supply of being located in the insulation shell (7) (E), the trnasistor converter (1) that links to each other with the power output end of Dc low voltage power supply (E), the rectification circuit (2) that links to each other with the alternating current output of trnasistor converter (1), the accumulator (3) that links to each other with the dc power output end of rectification circuit (2), the overvoltage crowbar (4) and the voltage indicating circuit (5) that link to each other with the voltage signal end of accumulator (3).

2, exploder according to claim 1 is characterized in that: described trnasistor converter (1) comprising: step-up transformer (T), first triode (BG1), first resistance (R1) and second resistance (R2); Described rectification circuit (2) comprising: 1 to 6 diode; Described accumulator (3) comprising: 1 to 3 electrochemical capacitor; Described overvoltage crowbar (4) comprising: second triode (BG2) and the 3rd triode (BG3); Described step-up transformer (T) elementary has first primary coil (L1) and second primary coil (L2); The secondary coil (L3) of described step-up transformer (T) is the high-tension coil with first primary coil (L1) homophase.

3, exploder according to claim 2 is characterized in that: the voltage output end of blowing out of described accumulator (3) is provided with charging and blows out knob (N).

4, exploder according to claim 3 is characterized in that: described voltage indicating circuit (5) comprises that power supply detects indicator lamp (LED), and power supply detects indicator lamp (LED) and constitutes series circuit with power supply (E); The two ends of this series circuit are a pair of test electrode (U and V); This is located on the insulation shell test electrode (U and V), and the luminous end that power supply detects indicator lamp (LED) is positioned between a pair of test electrode (U and V) on the insulation shell.

5, exploder according to claim 4 is characterized in that: described charging is blown out and is connected with the pair of terminals (X and Y) that is used to connect the detonator electrode on the knob (N).

6, the described exploder of claim 5 is characterized in that: the voltage output end of blowing out of described accumulator (3) is provided with charging indicator light (Z); The illuminating part of charging indicator light (Z) is located on the described insulation shell and is located between the described pair of terminals (X and Y).

7, the described exploder of claim 6 is characterized in that: described overvoltage crowbar (4) also comprises the voltage-stabiliser tube (W) that is in series with described charging indicator light (Z).

8, the described exploder of claim 7 is characterized in that: also comprise the buzzer (M) that the series circuit with described voltage-stabiliser tube (W) and charging indicator light (Z) is in parallel, buzzer (M) is provided with the 7th diode (D7) in the loop, place.