Dual segment delay output module for use in fire fighting equipment

Abstract

The utility model discloses a kind of double-section delay output module in fire-fighting equipment, including voltage stabilizing module, single-chip microcomputer chip and two switch output modules, voltage stabilizing module is used to convert external power supply into working voltage and power supply to single-chip microcomputer chip, single-chip microcomputer chip has two control signal output ends, and two control signal output ends can be according to the time sequence interval output control signal set inside single-chip microcomputer chip;The signal input end of two switch output modules is respectively connected with two control signal output ends, to realize the output end interval of two switch output modules and carry out output.The circuit structure of the double-section delay output module is simple, novel, reasonable, can realize interval output two-way switch quantity signal, very good meet the control requirement of complex control loop, improve the flexibility of electrical circuit design.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and in particular to a dual-stage delay output module for fire-fighting equipment. Background Technology

[0002] Existing industrial time relays only have power-on delay and power-off delay functions, and cannot realize stepped control output, which to some extent limits their application efficiency and flexibility in complex control circuits.

[0003] In view of the above, this utility model is hereby proposed. Summary of the Invention

[0004] To overcome the above-mentioned defects, this utility model provides a dual-stage delay output module for fire-fighting equipment. Its circuit structure is simple, novel and reasonable, and it can realize the intermittent output of two switching signals, which well meets the control requirements of complex control loops and improves the flexibility of electrical circuit design.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a dual-stage delay output module for fire-fighting equipment, including a voltage regulator module, a microcontroller chip, and two switch output modules. The voltage regulator module is used to convert external power into working voltage and supply power to the microcontroller chip. The microcontroller chip has two control signal output terminals, and the two control signal output terminals can output control signals at intervals according to the time sequence set internally by the microcontroller chip. The signal input terminals of the two switch output modules are respectively connected to the two control signal output terminals to realize that the output terminals of the two switch output modules output at intervals.

[0006] As a further improvement of this utility model, the microcontroller chip is a PIC12F509 chip, and the CLKIN pin and C1OUT pin of the microcontroller chip are both used as the control signal output terminals.

[0007] As a further improvement of this utility model, the two switch output modules are respectively defined as a first switch output module and a second switch output module;

[0008] The first switch output module includes a first transistor, a first relay, a first action indicator light, and a first diode. The emitter of the first transistor is grounded, and the base is connected to the CLKIN pin of the microcontroller chip. The first relay has a positive terminal for connecting to the positive terminal of an external power supply, a negative terminal for connecting to the negative terminal of an external power supply, a normally closed contact A, and a coil A for driving the normally closed contact A. The coil A, the first action indicator light, and the first diode are connected in parallel, and one end of the coil A is also connected to the positive terminal, and the other end of the coil A is also connected to the collector of the first transistor.

[0009] The second switch output module includes a second transistor, a second relay, a second action indicator light, and a second diode. The emitter of the second transistor is grounded, and the base is connected to the C1OUT pin of the microcontroller chip. The second relay has three normally open contacts, one normally closed contact B, a coil B for controlling the operation of two of the normally open contacts, and a coil C for controlling the operation of the normally closed contact B and the remaining normally open contact. The coil B, the coil C, the second action indicator light, and the second diode are connected in parallel, and one end of the coil C is also connected to the collector of the second transistor. The anode of the second action indicator light is also connected to the positive terminal.

[0010] As a further improvement of this utility model, the first switch output module further includes a third diode, the anode of which is connected to the positive terminal, and one end of the coil A and the anode of the second action indicator are respectively connected to the cathode of the third diode.

[0011] As a further improvement of this utility model, the voltage regulator module includes a linear regulator, the input terminal of which is connected to the cathode of the third diode, and the output terminal of the linear regulator has two branches, which are respectively connected to the OSC2 pin and the VDD pin of the microcontroller chip.

[0012] As a further improvement of this utility model, a power indicator light is also provided, wherein the anode of the power indicator light is connected to the cathode of the third diode, and the cathode of the power indicator light is grounded.

[0013] The beneficial effects of this utility model are: the circuit structure of the dual-stage delay output module for fire-fighting equipment described in this utility model is simple, novel and reasonable, and can realize the intermittent output of two switching signals, that is: it realizes the step-type output / control, thereby well meeting the control requirements of complex control circuits and improving the flexibility of electrical circuit design. Attached Figure Description

[0014] Figure 1This is a block diagram illustrating the working principle of the dual-stage delay output module for fire-fighting equipment described in this utility model.

[0015] Figure 2 This is a schematic diagram of the circuit principle of the dual-stage delay output module for fire-fighting equipment described in this utility model.

[0016] Referring to the accompanying drawings, the following explanations are provided:

[0017] 1. Voltage regulator module; 2. Microcontroller chip; 3. First switch output module; 4. Second switch output module. Detailed Implementation

[0018] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Example

[0020] Please see the appendix Figure 1 and 2 As shown, this embodiment provides a dual-stage delay output module for fire-fighting equipment, including a voltage regulator module 1, a microcontroller chip 2, and two switch output modules. The voltage regulator module 1 converts external power into operating voltage and supplies power to the microcontroller chip 2. The microcontroller chip 2 has two control signal output terminals, which can output control signals at intervals according to a time sequence set internally by the microcontroller chip 2. The signal input terminals of the two switch output modules are respectively connected to the two control signal output terminals to achieve interval output from the two switch output modules. It can be understood that the dual-stage delay output module provided in this embodiment can achieve interval output (or "delayed output") of two switching signals, that is, it realizes stepped output / control, thereby well meeting the control requirements of complex control loops and improving the flexibility of electrical circuit design.

[0021] The following provides a detailed description of the specific circuit structure and working principle of the dual-stage delay output module used in fire-fighting equipment as described in this embodiment.

[0022] Please continue to refer to the appendix. Figure 1 and 2 As shown, in the dual-segment delay output module structure provided in this embodiment, the microcontroller chip 2 is a PIC12F509 chip. The PIC12F509 chip is a common 8-bit flash memory microcontroller chip on the market, which has core processing functions (8-bit CPU, Harvard bus structure), storage functions (flash program memory, data memory), input / output functions, clock and oscillation functions, interrupt functions, timer functions, etc. As it is a well-known technology, it will not be described in detail here.

[0023] Further from the appendix Figure 2 It can be seen that the VDD pin (i.e., pin 1) and OSC2 pin (i.e., pin 3) of the microcontroller chip 2 are respectively connected to the voltage regulator module 1. The CLKIN pin (i.e., pin 2) and C1OUT pin (i.e., pin 5) of the microcontroller chip 2 are both used as the control signal output terminals, that is, the CLKIN pin can output the control signal RT2, and the C1OUT pin can output the control signal RT1. In addition, the J5 interface of the microcontroller chip 2 is the programming interface of the microcontroller, used to read the signal of the encoder K1.

[0024] Please continue to refer to the appendix. Figure 1 and 2 As shown, in the dual-segment delay output module structure provided in this embodiment, for ease of description, the two switch output modules are respectively defined as the first switch output module 3 and the second switch output module 4. The preferred circuit structure of the first switch output module 3 includes a first transistor Q1, a first relay J1, a first indicator light D1, and a first diode D2. The emitter of the first transistor Q1 is grounded, and its base is connected to the CLKIN pin of the microcontroller chip 2. The first relay J1 has a positive terminal for connecting to the positive terminal of an external power supply. The circuit consists of a head (composed of pins 1 and 2 of the first relay J1), a negative terminal (composed of pins 3 and 4 of the first relay J1, and grounded) for connecting to the negative terminal of an external power supply, a normally closed contact A (marked K4B), and a coil A (marked K4A) for driving the normally closed contact A. The coil A, the first operation indicator D1, and the first diode D2 are connected in parallel, and one end of the coil A is also connected to the positive terminal, while the other end of the coil A is also connected to the collector of the first transistor Q1. In other words, when the first switch output module 3 receives the control signal RT2 output from the CLKIN pin of the microcontroller chip 2, the first transistor Q1 conducts, the normally closed contact A (marked K4B) opens, and the first operation indicator D1 illuminates.

[0025] The preferred circuit structure of the second switch output module 4 is as follows: it includes a second transistor Q2, a second relay J2, a second action indicator D3, and a second diode D4. The emitter of the second transistor Q2 is grounded, and the base is connected to the C1OUT pin of the microcontroller chip 2. The second relay J2 has three normally open contacts (marked as K2C, K3B, and K3C respectively), one normally closed contact B (marked as K2B), a coil B (marked as K3A) for controlling the operation of two of the normally open contacts (marked as K3B and K3C respectively), and a coil C (marked as K2A) for controlling the operation of the normally closed contact B (marked as K2B) and the remaining normally open contact (marked as K2C). The coil B, the coil C, the second action indicator D3, and the second diode D4 are connected in parallel, and one end of the coil C is also connected to the collector of the second transistor Q2. The anode of the second action indicator D3 is also connected to the positive terminal. It is understandable that when the second switch output module 4 receives the control signal RT1 output from the C1OUT pin of the microcontroller chip 2, the second transistor Q2 is turned on, the second action indicator D3 is lit, the three normally open contacts (correspondingly marked K2C, K3B, and K3C) are all closed, and the normally closed contact B (correspondingly marked K2B) is opened.

[0026] Furthermore, the first switch output module 3 also includes a third diode D5, a second resistor R2, a third resistor R3, and a fourth resistor R4. The anode of the third diode D5 is connected to the positive terminal, and one end of the coil A (correspondingly marked K4A) and the anode of the second action indicator D3 are respectively connected to the cathode of the third diode D5. Understandably, the third diode D5 serves to prevent reverse power connection. The second resistor R2 is connected between the CLKIN pin of the microcontroller chip 2 and the base of the first transistor Q1. The third resistor R3 is connected between the base and emitter of the first transistor Q1. Understandably, the second resistor R2 and the third resistor R3 work together to prevent short circuits. The fourth resistor R4 is connected between the cathode of the first action indicator D1 and the anode of the first diode D2, serving to limit current.

[0027] Furthermore, the second switch output module 4 also includes a sixth resistor R6, a seventh resistor R7, and an eighth resistor R8. The sixth resistor R6 is connected between the cathode of the second action indicator D3 and the anode of the second diode D4, serving as a current limiter. The seventh resistor R7 is connected between the C1OUT pin of the microcontroller chip 2 and the base of the second transistor Q2. The eighth resistor R8 is connected between the base and emitter of the second transistor Q2. The seventh resistor R7 and the eighth resistor R8 work together to prevent short circuits.

[0028] Please continue to refer to the appendix. Figure 1 and 2 As shown, in the dual-segment delay output module structure provided in this embodiment, the voltage regulator module 1 includes a 78L05 linear regulator U1, a first capacitor C2, a second capacitor C3, and a ninth resistor R9. The input terminal of the linear regulator U1 is connected to the cathode of the third diode D5, and the output terminal of the linear regulator U1 has two branches, which are respectively connected to the OSC2 pin and the VDD pin of the microcontroller chip 2. The first capacitor C2 and the second capacitor C3 serve as filters to keep the voltage output stable. The ninth resistor R9 serves as a voltage divider to ensure that the voltage in the circuit is within a safe range.

[0029] Please continue to refer to the appendix. Figure 2 As shown, in the dual-segment delay output module structure provided in this embodiment, a power indicator D6 is also provided. The anode of the power indicator D6 is connected to the cathode of the third diode D5, and the cathode of the power indicator D6 is grounded after being connected in series with the fifth resistor R5. It can be understood that when the positive and negative terminals of the first switch output module 3 are connected to an external power supply, the power indicator D6 lights up to indicate the status.

[0030] The working principle of the dual-segment delay output module described in this embodiment is as follows, based on the detailed circuit structure described above:

[0031] S1: After the positive and negative terminals of the first switch output module 3 are connected to the external power supply, the dual-segment delay output module enters the working state as a whole, and the power indicator D6 lights up to indicate this.

[0032] S2: According to its internal program, the microcontroller chip 2 first controls the C1OUT pin to output control signal RT1. Correspondingly, the second transistor Q2 is turned on, the three normally open contacts (marked as K2C, K3B, and K3C respectively) are closed, the normally closed contact B (marked as K2B) is opened, and the second action indicator D3 is lit. Then, after the delay time set internally by the microcontroller chip 2 (e.g., after 2 seconds), the microcontroller chip 2 controls the CLKIN pin to output control signal RT2. Correspondingly, the first transistor Q1 is turned on, the normally closed contact A (marked as K4B) is opened, and the first action indicator D1 is lit.

[0033] As can be seen from the above, the dual-stage delay output module described in this embodiment can maintain the signal in the circuit while also achieving dual-stage delay output, which well meets the control requirements of complex control loops and improves the flexibility of electrical circuit design.

[0034] Finally, it should be noted that the prefixes "first," "second," etc., of the component names in this specification (such as first switch output module, second switch output module, etc.) and the suffixes "A," "B," "C," etc., of the component names (such as coil A, coil B, coil C, etc.) are only for clarity of description and are not intended to limit the scope of implementation of this utility model patent.

[0035] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A two segment delay output module for use in a fire protection device, characterized by: It includes a voltage regulator module (1), a microcontroller chip (2), and two switch output modules. The voltage regulator module (1) is used to convert the external power supply into the working voltage and supply power to the microcontroller chip (2). The microcontroller chip (2) has two control signal output terminals, and the two control signal output terminals can output control signals at intervals according to the time sequence set inside the microcontroller chip (2). The signal input terminals of the two switch output modules are respectively connected to the two control signal output terminals to realize that the output terminals of the two switch output modules output at intervals.

2. The dual stage delay output module for use in a fire fighting apparatus as claimed in claim 1, wherein: The microcontroller chip (2) is a PIC12F509 chip, and the CLKIN pin and C1OUT pin of the microcontroller chip (2) are used as the control signal output terminals.

3. The dual-stage delay output module for fire-fighting equipment according to claim 2, characterized in that: The two switch output modules are defined as the first switch output module (3) and the second switch output module (4), respectively. The first switch output module (3) includes a first transistor, a first relay, a first action indicator light and a first diode. The emitter of the first transistor is grounded and the base is connected to the CLKIN pin of the microcontroller chip (2). The first relay is provided with a positive terminal for connecting to the positive terminal of an external power supply, a negative terminal for connecting to the negative terminal of an external power supply, a normally closed contact A and a coil A for driving the normally closed contact A. The coil A, the first action indicator light and the first diode are connected in parallel, and one end of the coil A is also connected to the positive terminal. The other end of the coil A is also connected to the collector of the first transistor. The second switch output module (4) includes a second transistor, a second relay, a second action indicator light, and a second diode. The emitter of the second transistor is grounded, and the base is connected to the C1OUT pin of the microcontroller chip (2). The second relay has three normally open contacts, one normally closed contact B, a coil B for controlling the action of two of the normally open contacts, and a coil C for controlling the action of the normally closed contact B and the remaining normally open contact. The coil B, the coil C, the second action indicator light, and the second diode are connected in parallel. One end of the coil C is also connected to the collector of the second transistor, and the anode of the second action indicator light is also connected to the positive terminal.

4. The dual-stage delay output module for fire-fighting equipment according to claim 3, characterized in that: The first switch output module (3) also includes a third diode, the anode of which is connected to the positive terminal, and one end of the coil A and the anode of the second action indicator are respectively connected to the cathode of the third diode.

5. The dual-stage delay output module for fire-fighting equipment according to claim 4, characterized in that: The voltage regulator module (1) includes a linear regulator. The input terminal of the linear regulator is connected to the cathode of the third diode. The output terminal of the linear regulator has two branches, which are respectively connected to the OSC2 pin and the VDD pin of the microcontroller chip (2).

6. The dual-stage delay output module for fire-fighting equipment according to claim 4, characterized in that: It is also equipped with a power indicator light, the anode of which is connected to the cathode of the third diode, and the cathode of which is grounded.

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