Variable-frequency variable-energy engine ignition test device

Abstract

The utility model belongs to the technical field of engine ignition, and relates to a variable-frequency variable-energy engine ignition test device. Comprising an operation panel (1), a bottom plate (2), an ignition function circuit board (3), an adjusting circuit board (4), a socket (5), an ignition on-off control switch (6), N ignition energy control switches (7), N ignition frequency control knobs (8) and a high-voltage wire outlet pipe (9). The test device outputs various electric sparks with different ignition energies and ignition frequencies, the combination of various energies and frequencies can meet the test requirements of optimal ignition parameters of the engine, and the situation that various different ignition devices need to be purchased at the beginning of design of the engine to achieve parameter adjustment is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of engine ignition technology and relates to an ignition test device for a variable frequency and variable energy engine. Background Technology

[0002] Ignition energy and ignition frequency are crucial technical parameters of the ignition system. Appropriate ignition energy and frequency determine engine ignition efficiency and affect engine operating delay. For aerospace vehicles, engine delay determines the overall operational efficiency. During the initial engine design phase, the ignition parameters of the ignition system are often uncertain, requiring repeated testing and verification with different ignition energies and frequencies to determine the optimal parameters. A testing device capable of handling multiple ignition energy and frequency ranges can significantly improve the efficiency of engine ignition parameter testing. Currently, ignition testing devices, designed to handle multiple ignition energy and frequency ranges, are typically large and inconvenient to carry, making them unsuitable for on-site joint testing at engine test sites or airports. Utility Model Content

[0003] The purpose of this utility model is to provide a variable frequency and variable energy engine ignition test device that can adjust the ignition frequency, ignition energy, and ignition function, ignite the fuel in the engine combustion chamber, and has a small structure and is easy to carry.

[0004] Technical solution:

[0005] A variable frequency and variable energy engine ignition test device includes: an operation panel 1, a base plate 2, an ignition function circuit board 3, an adjustment circuit board 4, a socket 5, an ignition on / off control switch 6, N ignition energy control switches 7, N ignition frequency control knobs 8, and a high-voltage outlet pipe 9. The operation panel 1 and base plate 2 are profiles joined together to form a box-shaped structure; the adjustment circuit board 4 is fixed inside the box-shaped structure; the ignition function circuit board 3 is fixed on the base plate 2; the socket 5, ignition on / off control switches 6, ignition energy control switches 7, ignition frequency control knobs 8, and high-voltage outlet pipe 9 are fixed on the operation panel 1; one end of the high-voltage outlet pipe 9 is connected to the output end of the ignition function circuit board 3, and the other end of the high-voltage outlet pipe 9 is connected to the ignition cable and ignition nozzle on the engine; the adjustment circuit board 4 includes an adjustment resistor and an adjustment capacitor.

[0006] One end of the ignition on / off control switch 6 is connected to the socket 5, and the other end of the ignition on / off control switch 6 is connected to the power supply on the ignition function circuit board 3; one end of the ignition energy control switch 7 is connected to the ignition function circuit board 3, and the other end of the ignition energy control switch 7 is connected to one end of the energy storage capacitor, and the other end of the energy storage capacitor is connected to the ignition function circuit board 3.

[0007] One end of the ignition frequency control knob 8 is a common terminal and is connected to the ignition function circuit board 3. The other end of the ignition frequency control knob 8 is connected to the adjustment resistor and is used to adjust the resistance value of the adjustment circuit board 4. The 28V DC power supplied by the DC power supply of the ignition function circuit board 3 is converted into high-voltage pulse electricity with a fixed frequency.

[0008] Furthermore, the inner side of the operation panel 1 has several limit grids for adjusting the fixed position of the circuit board 4.

[0009] Furthermore, it also includes two cover plates 10, which are disposed at both ends of the box-shaped structure to form a closed structure.

[0010] Furthermore, the ignition frequency control knob 8 is a 5-pin, 4-position rotary switch. The common terminal is connected to the ignition function circuit board 3. One end of one position of the ignition frequency control knob 8 is left unattended as a neutral position, which is used to disconnect the electrical connection between the ignition frequency control knob 8 and the ignition function circuit board 3. The interfaces of the other three positions of the ignition frequency control knob 8 are connected to the interface of the adjustment resistor.

[0011] Furthermore, there are four ignition energy control switches 7 and four ignition frequency control knobs 8. The ignition energy control switches 7 and the ignition frequency control knobs 8 are arranged in parallel and correspond one-to-one. The ignition energy control switches 7 and the parallel ignition frequency control knobs 8 are used in combination. The four ignition energy control switches 7 control four ignition energy segments. When one ignition energy segment is used, the other ignition energy control switches 7 and ignition frequency control knobs 8 are adjusted to neutral. By rotating the parallel ignition frequency control knobs 8 of the ignition energy control switches 7, the different ignition frequencies under that ignition energy segment can be changed.

[0012] Furthermore, the ignition function circuit board 3, the adjustment circuit board 4, the ignition on / off control switch 6, the N ignition energy control switches 7, the N ignition frequency control knobs 8, and the high-voltage outlet pipe 9 are all in two sets, symmetrically arranged on the left and right sides of the box-shaped structure, with the left and right sets working independently.

[0013] Beneficial effects:

[0014] By adjusting the ignition energy control switch 7 and the ignition frequency control knob 8 on panel 1, the test device outputs 24 different ignition energies and frequencies of electric sparks. The combination of various energies and frequencies can meet the testing requirements for optimal engine ignition parameters, avoiding the need to purchase multiple different ignition devices to adjust parameters during the initial engine design phase. For ignition device manufacturers, this allows for the full understanding of the engine manufacturer's design requirements. Furthermore, the test device is small in size and highly convenient. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of a variable frequency and variable energy engine ignition test device according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of an end cap according to an embodiment of the present utility model. Detailed Implementation

[0017] like Figure 1 and 2 As shown, a variable frequency and variable energy engine ignition test device includes: a panel 1, a base plate 2, an ignition function circuit board 3, an adjustment circuit board 4, a socket 5, an ignition on / off control switch 6, an ignition energy control switch 7, an ignition frequency control knob 8, and a high-voltage output pipe 9, wherein:

[0018] The panel 1 is used to install and fix the socket 5, ignition on / off control switch 6, ignition energy control switch 7, ignition frequency control knob 8, and high voltage outlet pipe 9. At the same time, the inner side of the panel has several limit grids, which can be used to adjust the limit fixation of the circuit board 4.

[0019] The bottom of the base plate 2 has through holes, which can be used to fix the ignition function circuit board 3.

[0020] The ignition function circuit board 3 converts the 28V DC power supplied by the DC power supply into high-voltage pulse electricity with a fixed frequency. The high-voltage pulse electricity is transmitted to the engine's matching ignition cable and ignition nozzle through the high-voltage output tube 9, forming an electric spark on the surface of the ignition nozzle. The electric spark can ignite the fuel in the engine's combustion chamber. The ignition function circuit board 3 is used to connect with the adjustment circuit board 4, the ignition energy control switch 7, and the ignition frequency control knob 8.

[0021] The regulating circuit board 4 includes 3 regulating resistor interfaces and 4 energy storage capacitors;

[0022] The function of the adjustment circuit board 4 is to connect with the ignition function circuit board 3 and the ignition frequency control knob 8. By connecting with the ignition frequency control knob 8, the resistance output by rotating the ignition frequency control knob 8 changes continuously. By adjusting the change in resistance, the ignition frequency output by the ignition function circuit board 3 can be adjusted.

[0023] One end of the socket 5 is connected to one end of the ignition on / off control switch 6, and the other end is connected to the negative power line on the ignition function circuit board 3. It can obtain 28V DC power through the plug provided with the engine, and transmit DC power to the ignition function circuit board 3 by controlling the on / off state of the ignition on / off control switch 6.

[0024] One end of the ignition on / off control switch 6 is connected to one end of the socket 5, and the other end is connected to the positive power line on the ignition function circuit board 3. When the switch is toggled, the switch is turned on and off, which can realize the on / off of the electrical energy transmitted by the socket. That is, the two ends of the socket are connected to the positive and negative power lines of the ignition function circuit board 3, which can prevent the operator of the ignition test device from making mistakes.

[0025] One end of the ignition energy control switch 7 is connected to the ignition function circuit board 3, and the other end of the ignition energy control switch 7 is connected to one end of the energy storage capacitor, while the other end of the energy storage capacitor is connected to the ignition function circuit board 3. By toggling different ignition energy control switches 7, the capacity of the energy storage capacitor connected to the ignition function circuit board 3 can be controlled, thereby adjusting the ignition energy output by the ignition function circuit board 3.

[0026] The ignition frequency control knob 8 is a 5-pin, 4-position rotary switch. Its common terminal is connected to the adjustment resistor interface of the ignition function circuit board 3. One position of the ignition frequency control knob 8 has its other end suspended, serving as the neutral position, used to disconnect the electrical connection between the ignition frequency control knob 8 and the ignition function circuit board 3. The interfaces of the other three positions of the ignition frequency control knob 8 are connected to the adjustment circuit board 4. By rotating the ignition frequency control knob 8, the resistance value of the adjustment circuit board 4 can be changed, and the ignition frequency of the ignition function circuit board 3 can be changed accordingly. When the ignition frequency control knob 8 is rotated to the 3 o'clock position (i.e., the neutral position), the output resistance is infinite, meaning that the ignition frequency control knob 8 is not electrically connected to the ignition function circuit board 3.

[0027] The high-voltage output tube 9 is used to transmit the high-voltage pulse electricity generated by the ignition circuit board 3 to the engine's matching ignition cable and ignition nozzle. The high-voltage output tube 9 is designed with four through holes, which can be fixed to the panel 1 using screws and nuts.

[0028] The cover plate 10 is installed at both ends of the ignition test device to fix the entire ignition test device. The cover plate 10 is designed with 4 through holes, which can be fastened to the panel 1 and the base plate 2 of the ignition test device with screws.

[0029] This patent features a symmetrical structure, allowing independent operation of both left and right circuits, meaning both circuits can perform ignition. Taking the left circuit as an example, it includes one ignition function circuit board 3, one ignition on / off control switch 6, four ignition energy control switches 7, four ignition frequency control knobs 8, and one high-voltage output pipe 9. The ignition energy control switches 7 and ignition frequency control knobs 8 are arranged in parallel, meaning they work together. The four ignition energy control switches 7 can control four ignition energy levels. When using one ignition energy level, the other ignition energy control switches 7 and ignition frequency control knobs 8 should be set to neutral. Rotating the parallel ignition frequency control knobs 8 under the ignition energy control switches 7 allows for changing the ignition frequency under that energy level. The left-side ignition test device has four ignition energy segments, each with three frequency segments. Therefore, the left-side ignition test device can achieve 12 different combinations of energy and ignition frequency, resulting in 12 ignition parameters. Similarly, the right-side ignition test device can also output 12 ignition parameters. The entire ignition test device can output 24 ignition parameters for the engine to match to its optimal ignition state.

[0030] Compared with existing technologies, the beneficial effects of this patent are as follows: the variable frequency and variable energy engine ignition test device can not only output electric sparks with 24 different ignition energies and ignition frequencies, but also save weight and space, and is more convenient.

[0031] The embodiments described above are merely preferred embodiments of this patent, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this patent, and these all fall within the scope of protection of this patent. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A variable frequency variable energy engine ignition test device, characterized in that, include: The control panel (1), base plate (2), ignition function circuit board (3), adjustment circuit board (4), socket (5), ignition on / off control switch (6), N ignition energy control switches (7), N ignition frequency control knobs (8), and high-voltage outlet pipe (9) are provided. The control panel (1) and base plate (2) are profiles and are joined to form a box-shaped structure. The adjustment circuit board (4) is fixed inside the box-shaped structure. The ignition function circuit board (3) is fixed on the base plate (2). The socket (5), ignition on / off control switch (6), ignition energy control switch (7), ignition frequency control knob (8), and high-voltage outlet pipe (9) are fixed on the control panel (1). One end of the high-voltage outlet pipe (9) is connected to the output end of the ignition function circuit board (3), and the other end of the high-voltage outlet pipe (9) is connected to the ignition cable and ignition nozzle on the engine. The adjustment circuit board (4) includes an adjustment resistor and an adjustment capacitor. One end of the ignition on / off control switch (6) is connected to the socket (5), and the other end of the ignition on / off control switch (6) is connected to the power supply on the ignition function circuit board (3); one end of the ignition energy control switch (7) is connected to the ignition function circuit board (3), and the other end of the ignition energy control switch (7) is connected to one end of the energy storage capacitor, and the other end of the energy storage capacitor is connected to the ignition function circuit board (3); One end of the ignition frequency control knob (8) is a common terminal and is connected to the ignition function circuit board (3). The other end of the ignition frequency control knob (8) is connected to the adjustment resistor and is used to adjust the resistance value of the adjustment circuit board (4). The 28V DC power supplied by the DC power supply of the ignition function circuit board (3) is converted into high-voltage pulse power with a fixed frequency.

2. The variable frequency variable energy engine ignition test device according to claim 1, characterized in that, The inner side of the operation panel (1) has several limit grids for adjusting the fixed position of the circuit board (4).

3. The variable frequency variable energy engine ignition test device according to claim 1, characterized in that, It also includes two cover plates (10), which are set at both ends of the box-shaped structure to form a closed structure.

4. The variable frequency variable energy engine ignition test device according to claim 1, characterized in that, The ignition frequency control knob (8) is a 5-pin, 4-position rotary switch. The common terminal is connected to the ignition function circuit board (3). One end of one position of the ignition frequency control knob (8) is left unattended as a neutral position, which is used to disconnect the electrical connection between the ignition frequency control knob (8) and the ignition function circuit board (3). The interfaces of the other 3 positions of the ignition frequency control knob (8) are connected to the adjustment resistor interface.

5. The variable frequency variable energy engine ignition test device according to claim 1, characterized in that, There are four ignition energy control switches (7) and four ignition frequency control knobs (8). The ignition energy control switches (7) and the ignition frequency control knobs (8) are arranged in parallel and correspond to each other. The ignition energy control switches (7) and the parallel ignition frequency control knobs (8) are used together. The four ignition energy control switches (7) control four ignition energy segments. When one ignition energy segment is used, the other ignition energy control switches (7) and the ignition frequency control knobs (8) are adjusted to neutral. By rotating the parallel ignition frequency control knobs (8) of the ignition energy control switches (7), the different ignition frequencies under that ignition energy segment can be changed.

6. The variable frequency variable energy engine ignition test device according to claim 1, characterized in that, The ignition function circuit board (3), adjustment circuit board (4), socket (5), ignition on / off control switch (6), N ignition energy control switches (7), N ignition frequency control knobs (8), and high voltage outlet pipe (9) are all in two sets, symmetrically arranged on the box-shaped structure, with the left and right sets working independently.

Images