Multi-ignition device
By designing a multi-ignition device and a multi-stage signal amplification circuit, the problem of low success rate of traditional single ignition is solved, achieving complete combustion of the air-fuel mixture, improving engine efficiency and stability, and reducing fuel consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional car engines often fail to ignite due to their single-ignition method, resulting in incomplete combustion of the air-fuel mixture. This affects engine efficiency and power, and may also lead to increased fuel consumption.
The device employs a multi-ignition system. By receiving multiple ignition signals from an external vehicle controller, it uses a multi-stage signal amplification circuit to drive the ignition coil for multiple ignitions. This circuit includes a primary signal amplification circuit, a secondary signal amplification circuit, and a common-emitter amplification circuit, ensuring signal strength and stability.
It improves ignition success rate, enhances air-fuel mixture combustion, increases engine operating efficiency, reduces fuel consumption, and strengthens the device's anti-interference capability.
Smart Images
Figure CN121803383A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive engine ignition technology, and more specifically to a multiple ignition device. Background Technology
[0002] Automotive engines rely on ignition for operation. The ignition coil, as a core component, converts low-voltage electricity into high-voltage electricity through electromagnetic induction to ignite the fuel after injection. In existing technologies, traditional ignition coils mostly use a single-ignition method, which is prone to ignition failure, resulting in incomplete combustion of the air-fuel mixture. This not only affects the engine's operating efficiency but may also cause a chain reaction of problems such as reduced power and increased fuel consumption, thus hindering further improvements in engine performance. Summary of the Invention
[0003] To address the shortcomings of existing technologies, the present invention aims to provide a multiple ignition device that drives the ignition coil to perform multiple ignitions by receiving multiple ignition signals from an external vehicle controller, thereby effectively improving the ignition success rate and enhancing the combustion effect of the air-fuel mixture.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a multiple ignition device, comprising a long strip-shaped outer shell and a plurality of ignition coils arranged on the lower side of the outer shell, and a circuit board disposed inside the outer shell. A connector is fixed on the upper side of the outer shell. The connector is connected to an external vehicle controller to receive multiple ignition signals. The circuit board is connected between the connector and the plurality of ignition coils to drive the ignition coils to perform multiple ignitions after receiving multiple ignition signals.
[0005] As a further improvement of the present invention, the circuit board includes: a primary signal amplifier circuit connected to a connector plug to amplify and output multiple ignition signals; a secondary signal amplifier circuit connected to the primary signal amplifier circuit to amplify the multiple ignition signals a second time before outputting; and a common-emitter amplifier circuit connected to the secondary signal amplifier circuit and also connected to the ignition coil to finally amplify the multiple ignition signals and input them into the ignition coil to drive the ignition coil to work.
[0006] As a further improvement of the present invention, the first-stage signal amplification circuit includes: a transistor Q6, the base of which is connected to a power supply via resistors R15 and R14, the node between resistors R15 and R14 being connected to a connector, the base of which is also connected to a capacitor C2 and a resistor R18 connected in parallel, the emitter of which is grounded, and the collector of which is connected to a reference power supply via resistor R20; a transistor Q7, the emitter of which is grounded, the collector of which is connected to the collector of which is Q6, and is also connected to the second-stage signal amplification circuit to output the amplified signal, the base of which is connected to a transistor Q5, the base of which is connected to a power supply via resistor R19 and then resistor R63, the collector of which is connected to the second-stage signal amplification circuit and also to the base of which is Q7, and the emitter of which is grounded.
[0007] As a further improvement of the present invention, the secondary signal amplification circuit includes: a transistor Q2, the emitter of which is connected to ground via a resistor R11, and is also connected to the base of transistor Q7 via a capacitor C1 and a resistor R10; the collector of transistor Q2 is connected to a reference power supply, and the base of transistor Q2 is connected to a common-emitter amplifier circuit via a resistor R9; and a transistor Q1, the collector of which is connected to the collector of transistor Q6 via a resistor R16. The emitter is connected to ground via resistor R13, and then to Zener diode D1, which is connected to resistor R9. The base of transistor Q1 is connected to the collector of transistor Q2. Transistors Q3 and Q4 are connected with their respective bases connected to the base of transistor Q4. The junction between them is connected to resistor R16. The emitters of transistors Q3 and Q4 are connected to each other, and the junction between them is connected to resistor R17 and then to a common-emitter amplifier circuit.
[0008] As a further improvement of the present invention, the common-emitter amplifier circuit includes: a transistor Q46, the base of which is connected to the node between the emitters of transistors Q3 and Q4; the emitter of transistor Q46 is connected to ground via an inductor RA1; the collector of transistor Q46 is connected to the ignition coil via a diode Q47 and a capacitor C15 connected in parallel; and the collector of transistor Q46 is also connected to ground via resistors R7, R4, R6, R3, R2, R1, R5, and R8 connected in series. The node between resistors R5 and R8 is also connected to diode D1.
[0009] The beneficial effects of this invention, in conjunction with the background art, focus on describing the beneficial effects of the first claim and simultaneously illustrating its advanced nature. A brief explanation of the beneficial effects following the second paragraph is also provided. By receiving multiple ignition signals from an external vehicle controller to drive the ignition coil to ignite multiple times, the ignition success rate is effectively improved, the air-fuel mixture combustion effect is enhanced, engine operating efficiency is increased, and fuel consumption is reduced, demonstrating significant technological advancement. The multi-stage signal amplification circuit enhances the reliability of signal processing, ensuring stable operation of the ignition coil. Optimized circuit component configuration optimizes the signal amplification effect and improves the device's anti-interference capability. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of the multiple ignition device of the present invention; Figure 2 This is the circuit diagram for the circuit board section. Detailed Implementation
[0011] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings, wherein, as Figure 1 As shown in the figure, this embodiment provides an ignition coil structure for igniting a twelve-cylinder engine. Each ignition coil requires a corresponding circuit drive, and each drive circuit has the same structure. Figure 2 The example demonstrates a multi-drive scenario.
[0012] Reference Figure 1 As shown, the multi-ignition device of this embodiment includes a long, narrow outer casing 1, several ignition coils 2 arranged on the lower side of the casing 1, and a circuit board disposed inside the casing 1. A connector 3 is fixed to the upper side of the casing 1. The connector 3 is connected to an external vehicle controller to receive multi-ignition signals. The circuit board is connected between the connector 3 and the several ignition coils 2 to drive the ignition coils 2 to perform multiple ignitions after receiving the multi-ignition signals. During operation, the external vehicle controller sends multi-ignition signals to the connector 3. After receiving the signals, the circuit board processes them and drives the ignition coils 2 to ignite multiple times. This solves the problem of easy failure in traditional single ignition, achieves complete combustion of the air-fuel mixture, and improves engine efficiency.
[0013] Reference Figure 2As shown, the circuit board further includes: a primary signal amplifier circuit connected to the connector 3 to amplify and output multiple ignition signals; a secondary signal amplifier circuit connected to the primary signal amplifier circuit to amplify the multiple ignition signals a second time before outputting; and a common-emitter amplifier circuit connected to the secondary signal amplifier circuit and also connected to the ignition coil 2 to finally amplify the multiple ignition signals and input them into the ignition coil 2 to drive the ignition coil 2. This multi-stage amplifier circuit ensures sufficient signal strength to drive the ignition coil and improves ignition stability.
[0014] Furthermore, the first-stage signal amplification circuit includes: a transistor Q6, whose base is connected to resistors R15 and R14 and then to a power supply; the node between resistors R15 and R14 is connected to connector 3; the base of transistor Q6 is also connected to a capacitor C2 and a resistor R18 connected in parallel; the emitter of transistor Q6 is grounded; and the collector is connected to a resistor R20 and then to a reference power supply. A transistor Q7, whose emitter is grounded; its collector is connected to the collector of transistor Q6 and is also connected to the second-stage signal amplification circuit to output the amplified signal; the base of transistor Q7 is connected to transistor Q5; the base of transistor Q5 is connected to resistor R19 and then to a resistor R63 and then to a power supply; the collector of transistor Q5 is connected to the second-stage signal amplification circuit and also to the base of transistor Q7; and the emitter of transistor Q5 is grounded. This circuit configuration effectively amplifies the initial signal, filters interference, and improves signal purity.
[0015] Furthermore, the secondary signal amplification circuit includes: transistor Q2, whose emitter is connected to ground via resistor R11, and is also connected to the base of transistor Q7 via capacitor C1 and resistor R10; the collector of transistor Q2 is connected to the reference power supply, and the base of transistor Q2 is connected to the common-emitter amplifier circuit via resistor R9; and transistor Q1, whose collector is connected to the collector of transistor Q6 via resistor R16, and whose emitter is connected to... A resistor R13 connects to ground, and a Zener diode D1 is connected to a resistor R9. The base of transistor Q1 is connected to the collector of transistor Q2. Transistors Q3 and Q4 are connected with their respective terminals: the collector of Q3 is connected to the reference power supply, and the base of Q3 is connected to the base of Q4. The junction between them is connected to a resistor R16. The emitters of transistors Q3 and Q4 are connected, and the junction between them is connected to a resistor R17 and then to a common-emitter amplifier circuit. This two-stage amplifier circuit further enhances the signal strength and ensures stable signal transmission.
[0016] Furthermore, the common-emitter amplifier circuit includes: a transistor Q46, the base of which is connected to the node between the emitters of transistors Q3 and Q4; the emitter of transistor Q46 is connected to ground via an inductor RA1; the collector of transistor Q46 is connected to the ignition coil 2 via a diode Q47 and a capacitor C15 connected in parallel; the collector of transistor Q46 is also connected to ground via resistors R7, R4, R6, R3, R2, R1, R5, and R8 connected in series; the node between resistors R5 and R8 is also connected to diode D1. This circuit achieves final signal amplification, drives the ignition coil to operate efficiently, and protects circuit components.
[0017] In summary, this invention employs a multi-ignition device scheme consisting of a housing 1 with a connecting plug 3, an ignition coil 2, and a multi-stage amplification circuit board. By receiving multiple ignition signals from an external vehicle controller to drive the coil to ignite multiple times, it solves the problem of low success rate of traditional single ignition, achieves complete combustion of the air-fuel mixture, and improves engine operating efficiency. The configuration of the multi-stage amplification circuit enhances the reliability and stability of signal processing, and the optimization of specific circuit components improves anti-interference capabilities. The overall scheme has significant technical effects and advanced features.
[0018] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A multiple ignition device, comprising an elongated housing (1) and a plurality of ignition coils (2) arranged on the lower side of the housing (1), and a circuit board disposed within the housing (1), characterized in that: A connector (3) is fixed on the upper side of the housing (1). The connector (3) is connected to an external vehicle controller to receive multiple ignition signals. The circuit board is connected between the connector (3) and several ignition coils (2) to drive the ignition coils (2) to perform multiple ignitions after receiving multiple ignition signals.
2. The multiple ignition device according to claim 1, characterized in that: The circuit board includes: A primary signal amplifier circuit is connected to the connector (3) to amplify and output multiple ignition signals; A secondary signal amplifier circuit is connected to the primary signal amplifier circuit to amplify multiple ignition signals a second time before outputting them. The common-emitter amplifier circuit is connected to the secondary signal amplifier circuit and also to the ignition coil (2) to amplify the multiple ignition signals and input them into the ignition coil (2) to drive the ignition coil (2) to work.
3. The multiple ignition device according to claim 2, characterized in that: The primary signal amplification circuit includes: Transistor Q6, the base of transistor Q6 is connected to resistors R15 and R14 and then connected to the power supply, the node between resistors R15 and R14 is connected to the connector (3), the base of transistor Q6 is also connected to capacitor C2 and resistor R18 connected in parallel, the emitter of transistor Q6 is grounded, and the collector is connected to resistor R20 and then connected to the reference power supply; Transistor Q7 has its emitter grounded and its collector connected to the collector of transistor Q6. It is also connected to a secondary signal amplifier circuit to output an amplified signal. Transistor Q5 is connected to the base of transistor Q7. The base of transistor Q5 is connected to resistor R19, then to resistor R63, and finally to the power supply. The collector of transistor Q5 is connected to the secondary signal amplifier circuit and also to the base of transistor Q7. The emitter of transistor Q5 is grounded.
4. The multiple ignition device according to claim 3, characterized in that: The secondary signal amplification circuit includes: Transistor Q2 has its emitter connected to ground via resistor R11, and is also connected to the base of transistor Q7 via capacitor C1 and resistor R10. The collector of transistor Q2 is connected to the reference power supply, and the base of transistor Q2 is connected to the common-emitter amplifier circuit via resistor R9. Transistor Q1 has its collector connected to resistor R16 and then to the collector of transistor Q6. Transistor Q1's emitter is connected to ground via resistor R13. It is also connected to Zener diode D1 and then to resistor R9. Transistor Q1's base is connected to the collector of transistor Q2. Transistors Q3 and Q4 are connected. The collector of transistor Q3 is connected to the reference power supply, and the base of transistor Q3 is connected to the base of transistor Q4. The node between them is also connected to resistor R16. The emitter of transistor Q3 is connected to the emitter of transistor Q4, and the node between them is connected to resistor R17 and then connected to a common-emitter amplifier circuit.
5. The multiple ignition device according to claim 4, characterized in that: The common-emitter amplifier circuit includes: Transistor Q46 has its base connected to the node between the emitters of transistors Q3 and Q4. The emitter of transistor Q46 is connected to ground via inductor RA1. The collector of transistor Q46 is connected to the ignition coil via diode Q47 and capacitor C15 connected in parallel. The collector of transistor Q46 is also connected to ground via resistors R7, R4, R6, R3, R2, R1, R5, and R8 connected in series. The node between resistors R5 and R8 is also connected to diode D1.