CN201444020U

CN201444020U - Electronic millisecond switch for detonator

Info

Publication number: CN201444020U
Application number: CN2009200249485U
Authority: CN
Inventors: 王忠勇; 石杰; 石中宝; 石超; 郑洪涛; 石忠孝
Original assignee: 石忠孝
Priority date: 2009-05-08
Filing date: 2009-05-08
Publication date: 2010-04-28
Anticipated expiration: 2019-05-08

Abstract

The utility model provides an electronic millisecond switch for a detonator, which comprises a casing and a circuit board. A dial switch is arranged on the casing; a left upper terminal, a left middle terminal and a left lower terminal are arranged on the left side of the casing; a right upper terminal, a right middle terminal and a right lower terminal are arranged on the right side of the casing; and the circuit board is arranged inside the casing, an electronic millisecond switch circuit is arranged on the circuit board, and the circuit board is connected with the dial switch, the left upper terminal, the left middle terminal, the left lower terminal, the right upper terminal, the right middle terminal and the right lower terminal. The electronic millisecond switch solves the problems in the prior art that the operational reliability is poor, various output parameters are easy to be changed, parameters can not be accurately adjusted, and the maintenance work is fussy.

Description

Exploder electronics ms switch

Technical field

The utility model relates to Blasting Control equipment technical field, specifically a kind of exploder electronics ms switch.

Background technology

Blasting work is the particular job that danger is bigger, for guaranteeing that the safe and reliable of blasting work carries out smoothly, country has formulated respective standard, that is: the parameter of regulation exploder is among the GB GB7958-2000: the safe power supply time is not more than 4ms, exports the momentum that ignites and should be not less than 8.7A ²Ms, and be not more than 12.0A ²Ms.

At present, the exploder that is widely used in explosion mostly adopts traditional mechanical type ms switch, because its switch is the mechanical contact form, and adopt the action in limited time of spring gauge tap, there is following shortcoming in it in the middle of reality is used: one, the contact point because of mechanical contact switch is the exposure form, it is subjected to the influence of working environment very big, often occurs the phenomenon of contact point loose contact easily, and functional reliability is relatively poor; Two, as mechanical contact and transmission mechanism thereof, through use for a long time and frequent action after, it fatigue phenomenon occurs easily and influences mechanical performance, cause that therefrom various output parameters change, that is: safe power supply time and the output important indicators such as momentum of igniting will be far longer than GB, cause the mistake of electric cap quick-fried the most at last, its consequence is hardly imaginable; Moreover, for guaranteeing the safety of explosion, need be by the energy that it is unnecessary that short circuit is released, it is equally very unreliable that this work is finished by mechanical contact; Three, can't accurately adjust parameter in limited time; Four, the various parts of mechanical switch are prone to dislocation, distortion, damage phenomenon in the middle of using, and make maintenance work quite loaded down with trivial details.Therefore, traditional mechanical type ms switch is relatively poor because of functional reliability, and existing potential safety hazard is sizable in the middle of blasting work so it uses, and thus, has brought many worries to every aspect.

Summary of the invention

The purpose of this utility model provides a kind of exploder electronics ms switch, it can solve the functional reliability that prior art exists relatively poor, easily change various output parameters, can't accurately adjust parameter and the loaded down with trivial details problem of maintenance work.

The purpose of this utility model is achieved through the following technical solutions: exploder electronics ms switch, it comprises housing and circuit board, toggle switch is installed on the housing, the left side of housing is provided with terminal in upper left terminal, the left side, lower-left terminal respectively, the right side of housing is provided with terminal in upper right terminal, the right side, bottom right terminal respectively, mounting circuit boards in the housing, circuit board is provided with electronics ms switch circuit, circuit board by lead respectively with toggle switch, upper left terminal, a left side in the terminal, lower-left terminal, upper right terminal, the right side terminal, bottom right terminal be connected.

For further realizing the purpose of this utility model, also can finish by the following technical programs: described exploder electronics ms switch, circuit board is provided with electronics ms switch circuit respectively by clock pulses unit A, trigger shaping unit B, isolating trigger element C forms, clock pulses unit A respectively with trigger shaping unit B, isolating trigger element C connects, upper left terminal and lower-left terminal respectively with clock pulses unit A, trigger shaping unit B, isolating trigger element C connects, terminal is connected upper right terminal with triggering shaping unit B in the left side, terminal in the right side, the bottom right terminal is connected with isolation trigger element C respectively.

Described exploder electronics ms switch, clock pulses unit A is made up of module I C1, triggering shaping unit B is interconnected by module I C2, toggle switch respectively and forms, and isolates trigger element C and is interconnected and formed by triode P1-2, pulse transformer BT1-2, diode D1-2, controllable silicon SCR 1-2 respectively;

Upper left terminal is connected with an end of module I C1 pin 16, module I C2 pin 3, a winding of pulse transformer BT1-2 respectively; Terminal is connected with module I C2 pin 6 in the left side, the lower-left terminal is connected with module I C1 pin 12, toggle switch pin 1-4, triode P1-2 emitter stage respectively, module I C1 pin 6 is connected with module I C2 pin 43, toggle switch pin 5-8 is connected with module I C2 pin 33, pin 31, pin 29, pin 28 respectively, module I C2 pin 39-40 is connected with triode P1-2 base stage respectively, and triode P1-2 colelctor electrode is connected with the other end of a winding of pulse transformer BT1-2 respectively;

One end of pulse transformer BT1-2 Secondary Winding series diode D1-2 respectively is connected with the controllable silicon SCR 1-2 control utmost point, the other end of pulse transformer BT1-2 Secondary Winding is connected with controllable silicon SCR 1-2 negative pole respectively, controllable silicon SCR 1-2 positive pole is connected with terminal in the right side respectively, and upper right terminal, bottom right terminal are connected with controllable silicon SCR 1-2 negative pole respectively.

The beneficial effect that the utility model can produce: the circuit board of installing in the housing is provided with electronics ms switch circuit, electronics ms switch circuit is respectively by clock pulses unit A, trigger shaping unit B, isolating trigger element C forms, clock pulses unit A can provide the pulse delay function for triggering shaping unit B, trigger shaping unit B and outer signal can be treated to the pulse signal that only allows by two 1～4 millisecond, and this pulse signal acted on triode P1-2 conducting respectively, make pulse transformer BT1-2 work, after diode D1-2 rectification, trigger controllable silicon SCR 1-2 conducting more respectively, the effect of controllable silicon SCR 1 is to ignite electric cap as detonation switch output explosion momentum, and the effect of controllable silicon SCR 2 then is as the discharge switch remaining blasting energy of releasing.

The outstanding role of isolating trigger element C is high pressure to be exported blasting energy and pulse power supply is partly kept apart by pulse transformer BT1-2, and it can effectively avoid high-tension electricity to seal in current supply circuit and the mistake explosion that causes.

The remarkable advantage that the utlity model has reliable operation, output parameter is stable, control accuracy is high, can accurately adjust parameter, need not often safeguard, extensive use can produce tangible society, economic benefit.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

The specific embodiment

Exploder electronics ms switch of the present utility model, it comprises housing 1 and circuit board 2, toggle switch SW is installed on the housing 1, the left side of housing 1 is provided with terminal FK in upper left terminal+V, the left side, lower-left terminal GND respectively, the right side of housing 1 is provided with terminal IN in upper right terminal FP, the right side, bottom right terminal FD respectively, mounting circuit boards 2 in the housing 1, circuit board 2 is provided with electronics ms switch circuit, circuit board 2 by lead respectively with toggle switch SW, upper left terminal+V, a left side in terminal FK, lower-left terminal GND, upper right terminal FP, the right side terminal IN, bottom right terminal FD be connected.

Described exploder electronics ms switch, circuit board 2 is provided with electronics ms switch circuit and is made up of clock pulses unit A, triggering shaping unit B, isolation trigger element C respectively, clock pulses unit A is connected with triggering shaping unit B, isolation trigger element C respectively, upper left terminal+V is connected with clock pulses unit A, triggering shaping unit B, isolation trigger element C respectively with lower-left terminal GND, terminal FK is connected with triggering shaping unit B in the left side, and terminal IN, bottom right terminal FD are connected with isolation trigger element C respectively in upper right terminal FP, the right side.

Described exploder electronics ms switch, clock pulses unit A is made up of module I C1, trigger shaping unit B and interconnect and form by module I C2, toggle switch SW respectively, isolate trigger element C and interconnect and form by triode P1-2, pulse transformer BT1-2, diode D1-2, controllable silicon SCR 1-2 respectively;

Upper left terminal+V is connected with an end of module I C1 pin 16, module I C2 pin 3, a winding of pulse transformer BT1-2 respectively; Terminal FK is connected with module I C2 pin 6 in the left side, lower-left terminal GND is connected with module I C1 pin 12, toggle switch SW pin 1-4, triode P1-2 emitter stage respectively, module I C1 pin 6 is connected with module I C2 pin 43, toggle switch SW pin 5-8 is connected with module I C2 pin 33, pin 31, pin 29, pin 28 respectively, module I C2 pin 39-40 is connected with triode P1-2 base stage respectively, and triode P1-2 colelctor electrode is connected with the other end of a winding of pulse transformer BT1-2 respectively;

One end of pulse transformer BT1-2 Secondary Winding series diode D1-2 respectively is connected with the controllable silicon SCR 1-2 control utmost point, the other end of pulse transformer BT1-2 Secondary Winding is connected with controllable silicon SCR 1-2 negative pole respectively, controllable silicon SCR 1-2 positive pole is connected with terminal IN in the right side respectively, and upper right terminal FP, bottom right terminal FD are connected with controllable silicon SCR 1-2 negative pole respectively.

During making, process various parts assemblings by above-mentioned requirements and get final product.

During use, the normally opened contact of external Blasting Control button is inserted terminal FK in upper left terminal+V, the left side, the 5V dc source is inserted upper left terminal+V, lower-left terminal GND, rechargeable energy terminal IN from the right side of mining millisecond ignitor is inserted, upper right terminal FP is used for exporting the operation of detonating at controlled blasting networking, and bottom right terminal FD is used for the unnecessary energy of controlled discharge.

Duty is described: module I C2 is under the outer signal effect, in the cycle of a pulse, pass through two clock signals, adjust under the effect of circuit at distributor circuit and external time-delay, can allow pulse signal by two 1～4 millisecond, module I C2 acts on triode P1-2 conducting respectively with this pulse signal with time difference, make pulse transformer BT1-2 work, after diode D1-2 rectification, trigger controllable silicon SCR 1-2 conducting more respectively, controllable silicon SCR 1 is ignited electric cap as detonation switch output explosion momentum, and controllable silicon SCR 2 is then as the discharge switch remaining blasting energy of releasing.Pulse transformer BT1-2 forms the dipulse isolated drive circuit, and each pulse transformer can trigger controllable silicon synchronously, high pressure is exported blasting energy and pulse power supply is partly kept apart, and guarantees the safety of power supply circuits with this, thereby plays the effect of safety blasting.Toggle switch SW can adjust the blanking time of triggering as the controllable silicon SCR 1-2 of electronic switch respectively, with safe power supply time of guaranteeing blasting network in 4mS, to reach the requirement of safety regulations in coal mine.

Module I C1 model of the present utility model: CD4060, module I C2 model: EPM7064.

Technical scheme described in the utility model is not limited only to the embodiment of present embodiment record, can also have other embodiment to finish the technical solution of the utility model.

The technology that the utility model is not described in detail, shape, structure partly are known technology.

Claims

1. exploder electronics ms switch, it comprises housing (1) and circuit board (2), it is characterized in that: housing (1) is gone up toggle switch (SW) is installed, the left side of housing (1) be provided with respectively upper left terminal (+V), terminal in the left side (FK), lower-left terminal (GND), the right side of housing (1) is provided with upper right terminal (FP) respectively, terminal in the right side (IN), bottom right terminal (FD), the interior mounting circuit boards of housing (1) (2), circuit board (2) is provided with electronics ms switch circuit, circuit board (2) by lead respectively with toggle switch (SW), upper left terminal (+V), terminal in the left side (FK), lower-left terminal (GND), upper right terminal (FP), terminal in the right side (IN), bottom right terminal (FD) connects.

2. exploder electronics ms switch according to claim 1, it is characterized in that: circuit board (2) is provided with electronics ms switch circuit respectively by clock pulses unit A, trigger shaping unit B, isolating trigger element C forms, clock pulses unit A respectively with trigger shaping unit B, isolating trigger element C connects, upper left terminal (+V) and lower-left terminal (GND) respectively with clock pulses unit A, trigger shaping unit B, isolating trigger element C connects, terminal in the left side (FK) is connected upper right terminal (FP) with triggering shaping unit B, terminal in the right side (IN), bottom right terminal (FD) is connected with isolation trigger element C respectively.

3. exploder electronics ms switch according to claim 2, it is characterized in that: clock pulses unit A is made up of module I C1, trigger shaping unit B and interconnect and form by module I C2, toggle switch (SW) respectively, isolate trigger element C and interconnect and form by triode P1-2, pulse transformer BT1-2, diode D1-2, controllable silicon SCR 1-2 respectively;

Upper left terminal (+V) be connected with an end of module I C1 pin 16, module I C2 pin 3, a winding of pulse transformer BT1-2 respectively; Terminal in the left side (FK) is connected with module I C2 pin 6, lower-left terminal (GND) is connected with module I C1 pin 12, toggle switch (SW) pin 1-4, triode P1-2 emitter stage respectively, module I C1 pin 6 is connected with module I C2 pin 43, toggle switch (SW) pin 5-8 is connected with module I C2 pin 33, pin 31, pin 29, pin 28 respectively, module I C2 pin 39-40 is connected with triode P1-2 base stage respectively, and triode P1-2 colelctor electrode is connected with the other end of a winding of pulse transformer BT1-2 respectively;

One end of pulse transformer BT1-2 Secondary Winding series diode D1-2 respectively is connected with the controllable silicon SCR 1-2 control utmost point, the other end of pulse transformer BT1-2 Secondary Winding is connected with controllable silicon SCR 1-2 negative pole respectively, controllable silicon SCR 1-2 positive pole is connected with terminal (IN) in the right side respectively, and upper right terminal (FP), bottom right terminal (FD) are connected with controllable silicon SCR 1-2 negative pole respectively.