Temperature-resistant double-loop electronic control module

Abstract

The utility model provides a temperature-resistant double-loop electronic control module which not only can meet the energy use requirement under the oil well application condition and improve the working reliability, but also can avoid mistaken explosion and is high in safety. Comprising a main control module which is connected with an exploder and is used for realizing detonation and communication; the selective transmitting module is connected between the main control module and external equipment and is used for electrifying the external equipment when receiving the electrifying signal output by the main control module; the communication loop module is connected with the main control module and is used for realizing communication of the electronic detonator in a low-voltage state before charging; the energy storage ignition loop module is connected with the main control module and is used for detonating an electronic detonator in a high-voltage state after charging; the energy storage ignition loop module comprises a plurality of energy storage capacitors which are connected in parallel; and the communication loop module comprises a working capacitor C1.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic detonators, in particular to a temperature-resistant double-circuit electronic control module. Background Art

[0002] The heat-resistant electronic detonator module for oil and gas wells belongs to a sub-application field of the electronic detonator control module. Due to the particularity of the use environment, in addition to the basic functions of the electronic detonator module, the module itself must also have high temperature resistance. Its working principle is to use a control chip with core functions such as bus communication, bridge wire detection, and ignition switch control, and utilize the capacitor energy storage discharge principle to achieve ignition control, meet the 9085 standard for electronic detonators, and in terms of module temperature resistance design, it can work stably in an environment of 150°C; however, general ignition agents are more sensitive, and the use environment of heat-resistant electronic detonator modules for oil and gas wells is relatively harsh, especially in high temperature environments. Under the conditions of oil well applications, insensitive agents must be used, but the use of insensitive agents requires more energy during ignition, and the existing heat-resistant electronic detonator modules for oil and gas wells cannot meet this requirement; in addition, when performing electronic detonator selection control, it is easy to cause false explosions. Utility Model Content

[0003] In view of the above problems, the utility model provides a temperature-resistant dual-circuit electronic control module, which can not only meet the energy use requirements under oil well application conditions and improve working reliability, but also avoid accidental explosion and has high safety.

[0004] The utility model adopts the following technical scheme, a temperature-resistant dual-circuit electronic control module, comprising:

[0005] The main control module is connected to the detonator and is used to realize detonation and communication;

[0006] A transmission module is connected between the main control module and the external device, and is used to power on the external device when receiving a power-on signal output by the main control module;

[0007] A communication circuit module, connected to the main control module, for realizing communication of the electronic detonator in a low voltage state before charging;

[0008] An energy storage ignition circuit module is connected to the main control module and is used to realize the detonation of the electronic detonator in a high-voltage state after charging;

[0009] The energy storage ignition circuit module includes a plurality of energy storage capacitors connected in parallel; the communication circuit module includes a working capacitor C1.

[0010] Furthermore, the main control module includes a controller U1, an interface JP1, resistors R1 to R9, MOS tubes Q1, Q2, and diodes D1 to D4; the energy storage ignition circuit module also includes a resistor R11, and the communication circuit module also includes a resistor R12; the energy storage capacitor is divided into capacitors C2, C3, C4, and C5; the controller U1 adopts a model HW2307C control chip; one end of the resistor R1 is connected to pin 1 of the interface JP1, one end of the resistor R2 is connected to pin 2 of the interface JP1, the other end of the resistor R1 is connected to the positive electrode of the diode D1, the negative electrode of D3, and pin 1 of the controller U1, the other end of the resistor R2 is connected to the positive electrode of the diode D2, the negative electrode of D4, and pin 3 of the controller U1, the negative electrodes of the diodes D1 and D2 are connected to one end of the resistors R3 and R12, and one end of the capacitor C1, and the pin 2 of the controller U1 is connected to one end of the resistor R9 and the drain of the MOS tube Q1. are all connected, the other end of the resistor R3 is connected to the 14th pin of the controller U1, one end of the resistor R4 is connected to the 12th pin of the controller U1, the other end of the resistor R4 is connected to one end of the resistor R7, the 8th pin of the controller U1 is connected to one end of the resistor R8 and the gate of the MOS tube Q2, one end of the resistor R5 is connected to the 11th pin of the controller U1, the other end of the resistor R5 is connected to one end of the resistors R6 and R11, one end of the capacitors C2, C3, C4, C5, and the source of the MOS tube Q1, the 10th pin of the controller U1 is connected to the other end of the resistor R6 and the gate of the MOS tube Q1, the drain of the MOS tube Q2 is connected to the other end of the resistor R9, the positive electrodes of the diodes D3 and D4 are connected to the 4th pin of the controller U1, the other ends of the resistors R7, R8, R11, R12, the other ends of the capacitors C1, C2, C3, C4, C5, and the source of the MOS tube Q2;

[0011] Further, the selection module includes an interface JP2, MOS tubes Q3 to Q8, voltage regulator tubes D5 and D6, a diode D7, a resistor R10, and resistors R13 to R18; one end of the resistor R13 is connected to pin 1 of the controller U1, the gates of the MOS tubes Q3 and Q6 are connected to pin 12 of the controller U1, the sources of the MOS tubes Q3 and Q6 are grounded, the other end of the resistor R13 is connected to the negative electrode of the voltage regulator tube D5, one end of the resistor R14, and the sources of the MOS tubes Q4 and Q7, the drain of the MOS tube Q3 is connected to one end of the resistor R15, the other end of the resistor R15 is connected to one end of the resistor R14, the positive electrode of the voltage regulator tube D5, and the gate of the MOS tube Q4, the drain of the MOS tube Q4 is connected to The drain of the MOS tube Q5 is connected, the drain of the MOS tube Q7 is connected to the drain of the MOS tube Q8, the gate of the MOS tube Q7 is connected to the gate of the MOS tube Q8, the drain of the MOS tube Q6 is connected to one end of the resistor R17, the source of the MOS tube Q5 is connected to one end of the resistors R16 and R18, the negative electrode of the voltage regulator tube D6, and the drain of the MOS tube Q8, the other end of the resistor R17 is connected to the other end of the resistor R16, the positive electrode of the voltage regulator tube D6, and the gate of the MOS tube Q5, the other end of the resistor R18 is connected to the positive electrode of the diode D7 and then connected to the 2nd pin of the interface JP2, the negative electrode of the diode D7 is connected to one end of the resistor R10, and the other end of the resistor R10 is grounded.

[0012] The beneficial effect of the utility model is that by separately arranging the communication circuit module and the energy storage ignition circuit module, it can prevent the working capacitor C1 from possibly discharging reversely to the detonation circuit and causing an accidental explosion, and it has high safety. In addition, by arranging a plurality of energy storage capacitors connected in parallel, a larger ignition energy can be obtained, thereby meeting the energy use requirements under oil well application conditions, improving working reliability, and having good economic use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural block diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the connection circuit of the main control module of the utility model;

[0015] Figure 3 It is a circuit principle diagram of the selective emission module of the utility model. DETAILED DESCRIPTION

[0016] like Figure 1 to Figure 3 As shown, the utility model is a temperature-resistant dual-circuit electronic control module, comprising:

[0017] The main control module is connected to the detonator and is used to realize detonation and communication;

[0018] The selective sending module is connected between the main control module and the external device (that is, the lower-level electronic detonator), and is used to power on the external device when receiving the power-on signal output by the main control module; wherein the selective sending module is disconnected in the default state, and when the lower-level electronic detonator is detonated, the selective sending module is disconnected to avoid a bus short circuit caused by the detonation of the lower-level electronic detonator, and also to avoid the situation of misfire, with high safety;

[0019] A communication circuit module, connected to the main control module, for realizing communication of the electronic detonator in a low voltage state before charging;

[0020] An energy storage ignition circuit module is connected to the main control module and is used to realize the detonation of the electronic detonator in a high-voltage state after charging;

[0021] The energy storage ignition circuit module includes a plurality of energy storage capacitors connected in parallel; the communication circuit module includes a working capacitor C1.

[0022] The main control module includes a controller U1, an interface JP1, resistors R1 to R9, MOS tubes Q1, Q2, and diodes D1 to D4; the energy storage ignition circuit module also includes a resistor R11, and the communication circuit module also includes a resistor R12; the energy storage capacitors are divided into capacitors C2, C3, C4, and C5; the controller U1 adopts a model HW2307C control chip; one end of the resistor R1 is connected to pin 1 of the interface JP1, one end of the resistor R2 is connected to pin 2 of the interface JP1, the other end of the resistor R1 is connected to the positive electrode of the diode D1, the negative electrode of D3, and pin 1 of the controller U1, the other end of the resistor R2 is connected to the positive electrode of the diode D2, the negative electrode of D4, and pin 3 of the controller U1, the negative electrodes of the diodes D1 and D2 are connected to one end of the resistors R3 and R12, and one end of the capacitor C1, the pin 2 of the controller U1 is connected to one end of the resistor R9 and the drain of the MOS tube Q1, and the resistor The other end of R3 is connected to pin 14 of the controller U1, one end of the resistor R4 is connected to pin 12 of the controller U1, the other end of the resistor R4 is connected to one end of the resistor R7, pin 8 of the controller U1 is connected to one end of the resistor R8 and the gate of the MOS tube Q2, one end of the resistor R5 is connected to pin 11 of the controller U1, the other end of the resistor R5 is connected to one end of the resistors R6 and R11, one end of the capacitors C2, C3, C4, C5, and the source of the MOS tube Q1, pin 10 of the controller U1 is connected to the other end of the resistor R6 and the gate of the MOS tube Q1, the drain of the MOS tube Q2 is connected to the other end of the resistor R9, the positive poles of the diodes D3 and D4 are connected to pin 4 of the controller U1, the other ends of the resistors R7, R8, R11, R12, the other ends of the capacitors C1, C2, C3, C4, C5, and the source of the MOS tube Q2; the interface JP1 is connected to the detonator.

[0023] The selection module includes an interface JP2, MOS tubes Q3 to Q8, voltage regulator tubes D5 and D6, a diode D7, a resistor R10, and resistors R13 to R18; one end of the resistor R13 is connected to pin 1 of the controller U1, the gates of the MOS tubes Q3 and Q6 are connected to pin 12 of the controller U1, the sources of the MOS tubes Q3 and Q6 are grounded, the other end of the resistor R13 is connected to the negative electrode of the voltage regulator tube D5, one end of the resistor R14, and the sources of the MOS tubes Q4 and Q7, the drain of the MOS tube Q3 is connected to one end of the resistor R15, the other end of the resistor R15 is connected to one end of the resistor R14, the positive electrode of the voltage regulator tube D5, and the gate of the MOS tube Q4, and the drain of the MOS tube Q4 is connected to the drain of the MOS tube Q5 , the drain of MOS tube Q7 is connected to the drain of MOS tube Q8, the gate of MOS tube Q7 is connected to the gate of MOS tube Q8, the drain of MOS tube Q6 is connected to one end of resistor R17, the source of MOS tube Q5 is connected to one end of resistors R16 and R18, the cathode of voltage regulator tube D6, and the drain of MOS tube Q8, the other end of resistor R17 is connected to the other end of resistor R16, the anode of voltage regulator tube D6, and the gate of MOS tube Q5, the other end of resistor R18 is connected to the anode of diode D7 and then connected to pin 2 of interface JP2, the cathode of diode D7 is connected to one end of resistor R10, and the other end of resistor R10 is grounded; interface JP2 is connected to an external device (that is, a lower-level electronic detonator).

[0024] In the utility model, the communication loop module and the energy storage ignition loop module are separately arranged, which can prevent the working capacitor C1 from being reversely discharged to the detonation circuit (i.e., the energy storage ignition loop module) and causing an accidental explosion, and the safety is high; the energy storage capacitor is divided into capacitors C2, C3, C4, and C5, which can obtain a higher capacitance and a larger ignition energy, and the capacitors C2, C3, C4, and C5 are connected in parallel, which can reduce the voltage drop of a single capacitor component; a two-stage independent anti-reverse discharge structure can be formed by MOS tubes Q1 and Q2, which improves reliability and is safer; resistors R11 and R12 are used as discharge resistors, which can be used to quickly release the residual energy in the detonation capacitor under high temperature conditions; because the charging and discharging rate needs to be slow under high temperature environment, the charging and discharging rate of the energy storage capacitor can be adjusted by setting current limiting resistors R3 to R7.

[0025] Figure 3 The L_NEXT terminal is used to connect external devices.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A temperature-resistant dual-circuit electronic control module, characterized in that: include: The main control module is connected to the detonator and is used to realize detonation and communication; A transmission module is connected between the main control module and the external device, and is used to power on the external device when receiving a power-on signal output by the main control module; A communication circuit module, connected to the main control module, for realizing communication of the electronic detonator in a low voltage state before charging; An energy storage ignition circuit module is connected to the main control module and is used to realize the detonation of the electronic detonator in a high-voltage state after charging; The energy storage ignition circuit module includes a plurality of energy storage capacitors connected in parallel; the communication circuit module includes a working capacitor C1.

2. A temperature-resistant dual-circuit electronic control module according to claim 1, characterized in that: The main control module includes a controller U1, an interface JP1, resistors R1 to R9, MOS tubes Q1, Q2, and diodes D1 to D4; the energy storage ignition circuit module also includes a resistor R11, and the communication circuit module also includes a resistor R12; the energy storage capacitor is divided into capacitors C2, C3, C4, and C5; the controller U1 adopts a model HW2307C control chip; one end of the resistor R1 is connected to pin 1 of the interface JP1, one end of the resistor R2 is connected to pin 2 of the interface JP1, the other end of the resistor R1 is connected to the positive electrode of the diode D1, the negative electrode of D3, and pin 1 of the controller U1, the other end of the resistor R2 is connected to the positive electrode of the diode D2, the negative electrode of D4, and pin 3 of the controller U1, the negative electrodes of the diodes D1 and D2 are connected to one end of the resistors R3 and R12, and one end of the capacitor C1, and the pin 2 of the controller U1 is connected to one end of the resistor R9 and the drain of the MOS tube Q1 The other end of the resistor R3 is connected to the 14th pin of the controller U1, one end of the resistor R4 is connected to the 12th pin of the controller U1, the other end of the resistor R4 is connected to one end of the resistor R7, the 8th pin of the controller U1 is connected to one end of the resistor R8 and the gate of the MOS tube Q2, one end of the resistor R5 is connected to the 11th pin of the controller U1, the other end of the resistor R5 is connected to one end of the resistors R6 and R11, one end of the capacitors C2, C3, C4, C5, and the source of the MOS tube Q1, the 10th pin of the controller U1 is connected to the other end of the resistor R6 and the gate of the MOS tube Q1, the drain of the MOS tube Q2 is connected to the other end of the resistor R9, and the positive electrodes of the diodes D3 and D4 are connected to the 4th pin of the controller U1, the other ends of the resistors R7, R8, R11, R12, the other ends of the capacitors C1, C2, C3, C4, C5, and the source of the MOS tube Q2.

3. A temperature-resistant dual-circuit electronic control module according to claim 2, characterized in that: The selection module includes an interface JP2, MOS tubes Q3 to Q8, voltage regulator tubes D5 and D6, a diode D7, a resistor R10, and resistors R13 to R18; one end of the resistor R13 is connected to pin 1 of the controller U1, the gates of the MOS tubes Q3 and Q6 are connected to pin 12 of the controller U1, the sources of the MOS tubes Q3 and Q6 are grounded, the other end of the resistor R13 is connected to the negative electrode of the voltage regulator tube D5, one end of the resistor R14, and the sources of the MOS tubes Q4 and Q7, the drain of the MOS tube Q3 is connected to one end of the resistor R15, the other end of the resistor R15 is connected to one end of the resistor R14, the positive electrode of the voltage regulator tube D5, and the gate of the MOS tube Q4, the drain of the MOS tube Q4 is connected to the The drain of the MOS tube Q5 is connected, the drain of the MOS tube Q7 is connected to the drain of the MOS tube Q8, the gate of the MOS tube Q7 is connected to the gate of the MOS tube Q8, the drain of the MOS tube Q6 is connected to one end of the resistor R17, the source of the MOS tube Q5 is connected to one end of the resistors R16 and R18, the cathode of the voltage regulator tube D6, and the drain of the MOS tube Q8, the other end of the resistor R17 is connected to the other end of the resistor R16, the anode of the voltage regulator tube D6, and the gate of the MOS tube Q5, the other end of the resistor R18 is connected to the anode of the diode D7 and then connected to the 2nd pin of the interface JP2, the cathode of the diode D7 is connected to one end of the resistor R10, and the other end of the resistor R10 is grounded.

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