Multi-cylinder single-ignition equipment and engine

Abstract

The utility model belongs to the technical field of engines, and particularly discloses a multi-cylinder single ignition device and an engine, the multi-cylinder single ignition device comprises a trigger assembly, an ignition assembly and a control assembly, the trigger assembly comprises a detection mark arranged on an engine flywheel and triggers used for identifying the detection mark, and the number of the triggers is multiple; the ignition assembly comprises a power source, an ignition module electrically connected with the power source and a plurality of ignition circuits connected to the ignition module. The ignition circuits and the triggers are consistent in number and correspond one to one. The control assembly comprises an ignition controller, a signal receiving end of the ignition controller is used for receiving a trigger signal of the trigger, and a signal output end of the ignition controller is used for controlling an ignition circuit corresponding to the trigger to be powered on and ignited. By the adoption of the scheme, the problems that the cost of a plurality of igniters is high, the ignition state of each igniter needs to be set according to the condition of an engine, and instructions of a control management system are complex can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engine technical field, concretely relates to multi -cylinder single -firing equipment and engine. BACKGROUND

[0002] The main function of the engine ignition system is to ignite the combustible mixture in the cylinder by spark plug at the end of the compression stroke of the engine, so that the engine can work normally and output power. The performance of the ignition system directly affects the power, fuel consumption and emission level of the engine.

[0003] In the prior art, the engine of multi-cylinder type (two or more cylinders) is equipped with a single igniter for each cylinder, and each igniter is independently ignited. However, two or more igniters have high cost, and the ignition state of each igniter needs to be set according to the condition of the engine, the instruction of the control management system is complex, the cost is high, and the installation and debugging of multiple igniters also need time, the assembly efficiency is low. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides multi-cylinder single-firing equipment and engine to solve the problems of high cost of multiple igniters, and the ignition state of each igniter needs to be set according to the condition of the engine, the instruction of the control management system is complex, the cost is high, and the installation and debugging of multiple igniters also need time, the assembly efficiency is low.

[0005] According to the embodiments of the utility model, the following technical solutions are adopted:

[0006] The multi-cylinder single-firing equipment comprises a trigger assembly, an ignition assembly and a control assembly, the trigger assembly comprises a detection mark arranged on the engine flywheel and a trigger for identifying the detection mark, the trigger is provided with multiple groups; the ignition assembly comprises a power supply, an ignition module electrically connected with the power supply and multiple ignition lines connected with the ignition module, the number of ignition lines is consistent with that of triggers and they are one-to-one corresponding; the control assembly comprises an ignition controller, the signal receiving end of the ignition controller is used for receiving the trigger signal of the trigger, and the signal output end of the ignition controller is used for controlling the ignition line corresponding to the trigger to be powered and ignited according to the received trigger signal.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] According to the rotation of the engine flywheel, the trigger identifies the detection mark, and the ignition controller controls the ignition line corresponding to the trigger to be powered and ignited, that is, the ignition time of each ignition line is controlled according to the rotation angle of the engine flywheel, the control of the ignition time of multiple ignition lines is realized, and the control logic is simple.

[0009] In addition, multiple ignition circuits are integrated on the ignition module, and ignition is controlled uniformly by the ignition controller, resulting in a simple structure.

[0010] Furthermore, the detection markings include grooves formed on the engine flywheel or protrusions provided on the engine flywheel, and the trigger identifies the detection markings by detecting changes in the surface structure of the engine flywheel.

[0011] Furthermore, the triggering component includes a mounting plate for mounting the trigger, which is detachably connected to the mounting plate.

[0012] Furthermore, the ignition circuit includes a high-voltage wire and a spark plug connected to the high-voltage wire. The high-voltage wire is used to pass high-voltage electricity to the spark plug for ignition.

[0013] Furthermore, the ignition module includes multiple ignition switches connected to high-voltage lines and a transformer connected between the ignition switches and the power supply, with a low-voltage line connecting the power supply and the transformer; the ignition controller is used to control the opening and closing of the ignition switches.

[0014] According to embodiments of this utility model, the following technical solutions are also adopted:

[0015] The engine includes multiple ignition cylinders, an engine flywheel, and a multi-cylinder single ignition device, with ignition circuits corresponding one-to-one with the multiple ignition cylinders.

[0016] Furthermore, the angle formed between the axes of adjacent triggers and the engine flywheel is the same as the angle formed between the axes of adjacent ignition cylinders.

[0017] Furthermore, the engine flywheel is made of ferromagnetic material, and the trigger includes a permanent magnet and a sensor for detecting changes in the magnetic field of the permanent magnet. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the multi-cylinder single ignition device according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the engine flywheel in an embodiment of the present invention.

[0020] Figure 3 This is a control logic diagram of a multi-cylinder single-ignition device according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the overall structure of the engine in an embodiment of the present invention.

[0022] In the diagram: 1. Power supply; 2. Engine flywheel; 3. Trigger; 4. Low voltage wire; 5. Ignition module; 6. High voltage wire; 7. Spark plug; 8. Ignition cylinder block; 9. Mounting plate; 10. Protrusion. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings, and specific embodiments will be given.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, a multi-cylinder single ignition device includes a triggering component, an ignition component, and a control component. The triggering component includes a detection mark disposed on the engine flywheel 2 and a trigger 3 for identifying the detection mark. Multiple sets of trigger 3 are provided. In this embodiment, the detection mark includes a groove formed on the engine flywheel 2 or a protrusion 10 disposed on the engine flywheel 2. The trigger 3 identifies the detection mark by detecting changes in the surface structure of the engine flywheel 2, such as... Figure 2 As shown, in this embodiment, the detection mark is a protrusion 10 set on the engine flywheel 2, and the protrusion 10 is set on a smooth surface of the engine flywheel 2, avoiding the gear ring and other structures on the engine flywheel 2 (the engine flywheel 2 is a conventional component in the engine in the prior art, and its specific structure will not be described in detail) to avoid affecting the detection.

[0025] Specifically, this embodiment provides a design for a trigger component: the engine flywheel 2 is made of a ferromagnetic material (e.g., steel, iron), and the trigger 3 includes a permanent magnet and a sensor for detecting changes in the magnetic field of the permanent magnet. The permanent magnet generates a magnetic field, and the engine flywheel 2 rotates in the magnetic field. When the groove or protrusion 10 is aligned with the permanent magnet, the distance between the groove or protrusion 10 and the permanent magnet changes compared to the originally smooth surface of the engine flywheel 2, resulting in a change in the magnetic field strength. The sensor can be a Hall effect sensor from the prior art to detect the change in magnetic field strength, and then determine whether the detection mark has moved to the trigger 3.

[0026] In the actual design process, trigger 3 can also use other principles to detect changes in the surface structure of engine flywheel 2. For example, it can detect the distance between the surface of engine flywheel 2 and the distance sensor by using a distance sensor, or it can identify changes in the surface structure of engine flywheel 2 by using a vision sensor. As long as the changes in the surface structure of engine flywheel 2 can be detected and the detection mark can be identified, it is acceptable.

[0027] The ignition assembly includes a power supply 1, an ignition module 5 electrically connected to the power supply 1, and multiple ignition lines connected to the ignition module 5. The number of ignition lines and triggers 3 are identical and correspond one-to-one. Each ignition line includes a high-voltage wire 6 and spark plugs 7 connected to the high-voltage wire 6. The high-voltage wire 6 is used to supply high-voltage electricity to the spark plugs 7 for ignition. In actual use, the power supply 1 is a car battery. The ignition module 5 includes multiple ignition switches connected to the high-voltage wire 6 and a transformer connected between the ignition switches and the power supply 1. A low-voltage wire 4 connects the power supply 1 and the transformer. The transformer is a high-frequency step-up transformer, which converts low-voltage electricity into high-voltage electricity. The car battery generates a low-voltage current, which is converted into a high-voltage current by the transformer. The opening and closing of the ignition switch controls the high-voltage current to enter the high-voltage wire 6. The high-voltage current flows along the high-voltage wire 6 to the electrodes of the spark plugs 7, where it discharges at the electrode gap to form a spark, thus achieving ignition.

[0028] The control components include an ignition controller. The ignition controller uses a conventional microcontroller or a controller that implements control logic according to a PLC program. The signal receiving end of the ignition controller is used to receive the trigger signal of the trigger 3. The signal output end of the ignition controller is used to control the ignition circuit corresponding to the trigger 3 to be energized and ignited according to the received trigger signal. Specifically, the ignition controller is used to control the opening and closing of the corresponding ignition switch.

[0029] In practical application, this embodiment takes a twin-cylinder engine as an example. Two sets of triggers 3 and ignition circuits are provided, with the left trigger 3 corresponding to the left ignition circuit and the right trigger 3 corresponding to the right ignition circuit. Based on the rotation of the engine flywheel 2, when the detection marker rotates with the engine flywheel 2 to the right trigger 3, the right trigger 3 detects the detection marker and transmits the detection signal to the ignition controller. The ignition controller then controls the ignition switch of the right ignition circuit to close, allowing high-voltage electricity to enter the right high-voltage wire 6, and the right spark plug 7 ignites. Correspondingly, when the detection marker rotates with the engine flywheel 2 to the left trigger 3, the ignition controller controls the ignition switch of the left ignition circuit to close, and the left spark plug 7 ignites.

[0030] In another embodiment of this utility model, the trigger assembly includes a mounting plate 9 for mounting the trigger 3. The trigger 3 is detachably connected to the mounting plate 9, specifically, the trigger 3 is bolted to the mounting plate 9. The mounting plate 9 can be designed to be arc-shaped and mounted on the outside of the engine flywheel 2. The trigger 3 is detachably connected to the mounting plate 9. When installing the trigger 3, the trigger 3 can be first installed on the mounting plate 9 according to the required angle between multiple triggers 3, and then the mounting plate 9 can be directly installed on the outside of the engine flywheel 2. This avoids the problem of low assembly efficiency caused by having to find and adjust the angle near the engine flywheel 2 for each trigger 3 individually.

[0031] In another embodiment of this utility model, such as Figure 4 As shown, an engine is also disclosed, including multiple ignition cylinder blocks 8, an engine flywheel 2, and a multi-cylinder single ignition device as described in any of the preceding embodiments. The ignition circuits correspond one-to-one with the multiple ignition cylinder blocks 8, meaning that the spark plug 7 of each ignition circuit is assigned to one ignition cylinder block 8 for ignition. During actual assembly, the angle formed between the axes of adjacent trigger 3s and the engine flywheel 2 is consistent with the angle formed between the axes of adjacent ignition cylinder blocks 8.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-cylinder single-ignition device, characterized in that: The system includes a triggering component, an ignition component, and a control component. The triggering component includes a detection mark set on the engine flywheel (2) and a trigger (3) for identifying the detection mark. Multiple triggers (3) are provided. The ignition component includes a power supply (1), an ignition module (5) electrically connected to the power supply (1), and multiple ignition lines connected to the ignition module (5). The number of ignition lines and triggers (3) are the same and correspond one-to-one. The control component includes an ignition controller. The signal receiving end of the ignition controller is used to receive the trigger signal of the trigger (3), and the signal output end of the ignition controller is used to control the ignition line corresponding to the trigger (3) to be energized and ignited according to the received trigger signal.

2. The multi-cylinder single ignition device according to claim 1, characterized in that: The detection mark includes a groove formed on the engine flywheel (2) or a protrusion (10) set on the engine flywheel (2). The trigger (3) identifies the detection mark by detecting changes in the surface structure of the engine flywheel (2).

3. The multi-cylinder single ignition device according to claim 1, characterized in that: The triggering component includes a mounting plate (9) for mounting the trigger (3), which is detachably connected to the mounting plate (9).

4. The multi-cylinder single ignition device according to claim 1, characterized in that: The ignition circuit includes a high-voltage wire (6) and a spark plug (7) connected to the high-voltage wire (6). The high-voltage wire (6) is used to pass high-voltage electricity to the spark plug (7) for ignition.

5. The multi-cylinder single ignition device according to claim 4, characterized in that: The ignition module (5) includes multiple ignition switches connected to the high-voltage line (6) and a transformer connected between the ignition switch and the power supply (1). A low-voltage line (4) is connected between the power supply (1) and the transformer. The ignition controller is used to control the opening and closing of the ignition switch.

6. An engine, characterized in that: It includes multiple ignition cylinders (8), an engine flywheel (2), and a multi-cylinder single ignition device as described in any one of claims 1-5, with the ignition circuit and the multiple ignition cylinders (8) corresponding one-to-one.

7. The engine according to claim 6, characterized in that: The angle formed between the axis of the adjacent trigger (3) and the axis of the engine flywheel (2) is the same as the angle formed between the axis of the adjacent ignition cylinder (8).

8. The engine according to claim 6, characterized in that: The engine flywheel (2) is made of ferromagnetic material, and the trigger (3) includes a permanent magnet and a sensor for detecting changes in the magnetic field of the permanent magnet.

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