CN115492688A - Design and manufacturing method of ignition exciter of aircraft engine - Google Patents
Design and manufacturing method of ignition exciter of aircraft engine Download PDFInfo
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- CN115492688A CN115492688A CN202210982995.0A CN202210982995A CN115492688A CN 115492688 A CN115492688 A CN 115492688A CN 202210982995 A CN202210982995 A CN 202210982995A CN 115492688 A CN115492688 A CN 115492688A
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- ignition exciter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
- F02C7/264—Ignition
- F02C7/266—Electric
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
The invention relates to the technical field of ignition exciters, and discloses a design and manufacturing method of an ignition exciter of an aero-engine, which comprises the following steps: decomposing an ignition exciter circuit into a plurality of functional circuits according to the circuit structure and the circuit principle of the ignition exciter to obtain each modularized functional circuit module; the plug connector is arranged on the module box, the interface circuit module comprises a wiring box and plug holes arranged on the wiring box, the plug connectors of all the functional circuit modules are respectively plugged into the corresponding plug holes on the interface circuit module to obtain the modularized ignition exciter, the functional circuit modules are electrically connected through the wiring box, the plug connectors and the plug holes which are matched with each other are arranged on the functional circuit modules and the wiring box, a plug-in structure is formed between the functional circuit modules and the wiring box, the manufacturing process of the ignition exciter is simpler and more convenient than that of a traditional mode, and the connection stability between electronic elements of the ignition exciter is improved.
Description
Technical Field
The invention relates to the field of ignition exciters, in particular to a design and manufacturing method of an ignition exciter of an aero-engine.
Background
The ignition exciter of the aircraft engine is an important part of the engine, and the ignition exciter, an ignition cable and an ignition electric nozzle form an ignition system which is used for starting the engine or boosting electric ignition. Most modern aviation jet engines adopt high-voltage and high-energy ignition exciters, and stored energy is more than 4J. The ignition exciter has the main function of converting low-voltage direct current/alternating current transmitted from the ground or an engine into high-voltage pulse electricity, the high-voltage pulse electricity is transmitted to the ignition electric nozzle through an ignition cable, and high-energy electric sparks are generated at the ignition end of the ignition electric nozzle to ignite oil-gas mixtures in a combustion chamber of the engine.
At present, in electrical equipment, a printed circuit board is generally adopted for circuit connection to realize automatic production, but an ignition exciter has higher working voltage in a circuit, and components such as an energy storage capacitor and a transformer used by the ignition exciter have larger volume and weight, and are relatively difficult to fix on the printed circuit board. Therefore, the printed board is not suitable for the ignition exciter. In the assembly of the traditional ignition exciter, all components of a circuit are generally connected through wires, and the welding points connected with the wires are individually insulated; the fixed structure is independently established for each component, the fixed assembly is relatively complex, and the manual assembly is inevitable and has human errors, so that the ignition exciter is unqualified or hidden troubles of faults are left, and the production yield of the ignition exciter and the reliability of the installation and use are influenced.
Therefore, there is a need for a method of designing and manufacturing an ignition exciter for an aircraft engine that avoids the above problems during use.
Disclosure of Invention
Aiming at the problems of the existing ignition exciter, the invention provides a design and manufacturing method of an ignition exciter of an aero-engine, so as to solve the problems of production yield and automatic assembly of the ignition exciter.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a design and manufacturing method of an ignition exciter of an aircraft engine comprises the following steps:
according to the circuit structure and the circuit principle of the ignition exciter, the ignition exciter circuit is decomposed into a plurality of functional circuits, and the functional circuits are used for realizing different functions in the ignition exciter;
electronic elements related in each functional circuit are electrically connected according to the circuit, each functional circuit is respectively arranged in different module boxes and is fixed in the module boxes, and each modularized functional circuit module is obtained;
the module box is provided with a plug connector which is electrically connected with the corresponding functional circuit;
designing an interface circuit module, wherein the interface circuit module comprises a wiring box and a plurality of inserting holes arranged on the wiring box, and the inserting holes are electrically connected according to the connection relation and the requirement between the functional circuit modules;
and respectively inserting the plug connectors of the functional circuit modules into corresponding insertion holes on the interface circuit module to obtain the modularized ignition exciter.
In the invention, the circuit of the ignition exciter is decomposed into a plurality of functional circuits to obtain each modularized functional circuit module, the functional circuit modules are electrically connected through the wiring box, and the functional circuit modules and the wiring box are provided with the plug connectors and the plug holes which are matched with each other, so that the plug structures are formed between the functional circuit modules and the wiring box, the connection stability between the functional circuit modules and the wiring box is improved, the manufacturing process of the ignition exciter is simpler and more convenient compared with the traditional mode, the connection stability between electronic elements of the ignition exciter is improved, and the automatic production and assembly of the ignition exciter can be realized.
As a further improvement of the technical scheme of the invention, a shell matched with the obtained modularized ignition exciter is designed, a power supply connector and an output connector are designed on the shell, and a power supply connector electrically connected with the power supply connector and an output connector electrically connected with the output connector are respectively designed in the shell;
and a power supply plug hole and an output plug hole which are matched with the power supply plug connector and the output plug connector are designed on the wiring box.
In the invention, the functional circuit module and the wiring box are arranged in the shell, so that a circuit structure formed by matching the functional circuit module and the wiring box is connected with an external connecting part through a power connector and an output connector arranged on the shell;
be provided with the output plug connector of being connected with power connection and output connector electricity in the casing to be provided with on the wiring box with power plug connector, output plug connector complex power spliced eye and output spliced eye, utilize spliced eye and power plug connector of wiring box, the plug connection between the output plug connector, make wiring box and power connection and output connect between form stable connected relation, make things convenient for the installation of wiring box at the casing when improving the reliability of the exciter of igniteing, improve the preparation efficiency of the exciter of igniteing.
As a further improvement of the technical scheme of the invention, the interface circuit module is arranged in the shell, and the power plug connector and the output plug connector are respectively inserted into the power plug hole and the output plug hole on the wiring box;
installing each functional circuit module into the shell, and correspondingly inserting the plug connectors of each functional circuit module into the plug holes on the wiring box;
a cover plate is mounted on the housing.
According to the invention, by utilizing the plug connection structure between the interface circuit module and the power plug connector, the plug connection structure between the output plug connector and the functional circuit module, the connection fixing effect among the modules is improved, the installation operation of the modules in the shell is facilitated, the automatic production can be realized, and the product quality and the reliability of the ignition exciter can be ensured.
As a further improvement of the technical scheme of the invention, a clamping piece is arranged at the mounting position corresponding to the functional circuit module in the shell, and a matched limiting clamping groove is arranged at the position corresponding to the clamping piece on the functional circuit module;
when installing functional circuit module in the casing, the joint spare corresponds the card and establishes to spacing draw-in groove, fixes functional module circuit in the casing.
In the invention, in order to improve the fixing effect of the functional circuit module in the shell, the clamping piece is arranged in the shell, and the limiting clamping groove matched with the clamping piece is arranged on the functional circuit module, so that the functional circuit module can be kept in a stable fixed connection state with the shell after being connected with the wiring box in the shell.
As a further improvement to the technical scheme of the invention, the ignition exciter circuit is decomposed into:
the filter module is used for adjusting current and controlling the input power and the spark efficiency of the ignition exciter;
the boosting module is used for boosting the low-voltage power input by the power supply to high-voltage power;
the rectifying module is used for rectifying and multiplying the voltage of the alternating current signal output by the boosting module circuit;
the energy storage module is used for storing energy and forming an oscillation loop;
the discharge protection module is used for releasing the energy stored by the energy storage module when the stored energy reaches a design value;
and/or the secondary boosting module is used for secondary boosting of the circuit.
As a further improvement of the technical solution of the present invention, the manufacturing process of the functional circuit module includes: and filling epoxy glue or foaming resin into the module box to fix the functional circuit.
In the invention, after the corresponding electronic elements are installed in each module box, epoxy glue or foaming resin is filled to fix the functional circuits, so that the functional circuits in the module boxes are insulated and fixed, and the service life of each functional circuit is prolonged.
As a further improvement of the technical scheme of the invention, a positioning clamping groove and a positioning piece matched with the positioning clamping groove are arranged on a contact surface between the functional circuit modules.
In the invention, in the process of dividing the electronic elements according to functions, the electronic elements in part of the functional circuit modules are fewer, so that the functional circuit modules are different in size, and in order to prevent the functional circuit modules from being effectively fixed by the clamping piece in the shell due to undersize, the mutually matched positioning clamping grooves and positioning pieces are arranged on the mutually contacting surfaces of the functional circuit modules, so that each functional circuit module can be kept in a stable fixed connection state in the shell.
As a further improvement of the technical scheme of the invention, the cover plate is provided with a sealing threaded sleeve.
In the invention, after all functional circuit modules are installed in the shell, the cover plate is installed on the shell in a welding mode, so that the functional circuit modules are in a sealed environment, the cover plate is also provided with the sealing threaded sleeves, air in the shell is exhausted through the sealing threaded sleeves under the influence of high welding temperature in the welding process of the cover plate and the shell, and the sealing threaded sleeves are welded and blocked after the welding operation between the shell and the cover plate is finished, so that the integral sealing performance of the ignition exciter is ensured.
The invention has the following beneficial effects:
1) According to the invention, the circuit of the ignition exciter is decomposed into a plurality of functional circuit modules to obtain each modularized functional circuit module, the functional circuit modules are electrically connected through the wiring box, and the functional circuit modules and the wiring box are provided with the plug connectors and the plug holes which are matched with each other, so that the functional circuit modules and the wiring box form a plug structure, the connection stability between the functional circuit modules and the wiring box is improved, the manufacturing process of the ignition exciter is simpler and more convenient compared with the traditional mode, and the connection stability between electronic elements of the ignition exciter is improved.
2) The splicing connection between the splicing hole of the wiring box and the power supply plug connector and the output plug connector is utilized to form a stable connection relation between the wiring box and the power supply connector and between the wiring box and the output connector, the reliability of the ignition exciter is improved, meanwhile, the installation process of the wiring box on the shell is facilitated, and the manufacturing efficiency of the ignition exciter is improved.
3) By utilizing the splicing connection structure between the interface circuit module and the power supply plug connector, the output plug connector and the functional circuit module, the installation operation of each module in the shell is facilitated while the connection fixing effect among the modules is improved, and the product quality and the reliability of the ignition exciter can be ensured while the automatic production is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of an embodiment of the ignition exciter of the present invention.
Fig. 2 is a schematic structural diagram of a functional circuit module according to the present invention.
FIG. 3 is a schematic view of the wiring box of the present invention.
Fig. 4 is a schematic structural diagram of the housing of the present invention.
Fig. 5 is a structural sectional view of the energy storage module and the discharge protection module at the connection position according to the present invention.
Fig. 6 is a schematic view of the structure at a in fig. 5.
Fig. 7 is a schematic structural diagram at B in fig. 5.
Fig. 8 is a schematic circuit diagram of the ignition exciter of the present invention.
In the figure: 1-a shell; 2-power connection; 3-an output connector; 4-a filtering module; 5-a boost module; 6, a rectification module; 7-an energy storage module; 8-a discharge protection module; 9-a secondary boost module; 10-wiring box; 11-a cover plate; 12-sealing thread sleeves; 101-a plug-in unit; 102-a plug-in hole; 103-power plug connector; 104-output plug connector; 111-a clip; 112-a limiting clamping groove; 113-a positioning element; 114-positioning card slot.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Example 1:
the method for designing and manufacturing the ignition exciter of the aero-engine provided by the embodiment comprises the following steps:
according to the circuit structure and the circuit principle of the ignition exciter, the ignition exciter circuit is decomposed into a plurality of functional circuits, and the functional circuits are used for realizing different functions in the ignition exciter;
electronic elements related in each functional circuit are electrically connected according to the circuit, each functional circuit is respectively arranged in different module boxes and is fixed in the module boxes, and each modularized functional circuit module is obtained;
the module box is provided with a plug connector 101 which is electrically connected with a corresponding functional circuit;
designing an interface circuit module, wherein the interface circuit module comprises a wiring box 10 and a plurality of inserting holes 102 arranged on the wiring box 10, and the inserting holes 102 are electrically connected according to the connection relation and requirements between the functional circuit modules;
the plug-in connectors of the functional circuit modules are respectively plugged into the corresponding plug-in holes 102 of the interface circuit module, so that the modularized ignition exciter is obtained.
Further, a shell 1 matched with the obtained modularized ignition exciter is designed, a power connector 2 and an output connector 3 are designed on the shell 1, and a power connector 103 electrically connected with the power connector 2 and an output connector 104 electrically connected with the output connector 3 are respectively designed in the box body;
the wiring box 10 is provided with a power jack and an output jack which are engaged with the power plug 103 and the output plug 104.
Further, the interface circuit module is installed in the housing 1, and the power plug connector 103 and the output plug connector 104 are respectively inserted into the power plug hole and the output plug hole on the wiring box 10;
installing each functional circuit module into the shell 1, and correspondingly inserting the plug connectors 101 of each functional circuit module into the plug holes 102 on the wiring box;
a cover plate 11 is mounted on the housing 1.
Furthermore, a clamping piece 111 is arranged in the shell 1 at a position corresponding to the functional circuit module, and a matched limiting clamping groove 112 is arranged on the functional circuit module at a position corresponding to the clamping piece 111;
when the functional circuit module is installed in the housing 1, the clamping piece 111 is correspondingly clamped in the limiting clamping groove 112, so that the functional module circuit is fixed in the housing 1.
Further, the ignition exciter circuit is decomposed into:
the filter module 4 circuit is used for adjusting current and controlling the input power and the spark efficiency of the ignition exciter;
the boost module 5 circuit is used for boosting the low-voltage power input by the power supply to a high voltage;
the rectifying module 6 is used for rectifying and multiplying the voltage of the alternating current signal output by the circuit of the boosting module 5;
the energy storage module 7 is used for storing energy and forming an oscillation loop;
the discharge protection module 8 is used for releasing the energy stored in the energy storage module 7 when the stored energy reaches a design value;
and/or a secondary boosting module 9 for secondary boosting of the circuit.
Further, the manufacturing process of the functional circuit module comprises: and installing the functional circuit into the module box, and then pouring epoxy glue or foaming resin into the module box to fix the functional circuit.
Furthermore, a positioning card slot 114 and a positioning part 113 matched with each other are arranged on the contact surface between the functional circuit modules.
Further, a sealing threaded sleeve 12 is arranged on the cover plate 11.
In the embodiment, as shown in fig. 1 to 2, the electronic components of the ignition exciter are divided into a plurality of functional circuits according to functions, and a wiring box 10 is arranged in the housing 1 to obtain each modularized functional circuit module, and the wiring box 10 is used to connect the functional circuit modules, the power connector 2 and the output connector 3 to realize complete circuit connection;
as shown in fig. 5 and fig. 6, the functional circuit modules are all provided with connectors, the power connector 2 and the output connector 3 are provided with connectors 101 in the housing 1, and the wiring box 10 is provided with the insertion holes 102 matched with the connectors 101, so that the functional circuit module, the wiring box 10, the power connector 2 and the output connector 3 form a mutual insertion connection structure, the matching surface between the housing 1 and the functional circuit module is provided with the clamping piece 111, the functional circuit module is provided with the limiting clamping groove 112 matched with the clamping piece 111, so that the functional circuit module and the wiring box 10 are kept in a stable connection state in the housing 1, thereby improving the product reliability of the ignition exciter,
further, as shown in fig. 1 to 4, the manufacturing process of the ignition exciter can be effectively simplified by using the plug-in connection structure of the functional circuit module, the wiring box 10, the power connector 2 and the output connector 3, and the production quality of the ignition exciter can be ensured while the automatic assembly of the ignition exciter can be realized by matching with production equipment.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. used herein refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is used, and are used for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method for designing and manufacturing an ignition exciter of an aircraft engine is characterized by comprising the following steps:
according to the circuit structure and the circuit principle of the ignition exciter, the ignition exciter circuit is decomposed into a plurality of functional circuits, and the functional circuits are used for realizing different functions in the ignition exciter;
electronic elements related in each functional circuit are electrically connected according to the circuit, each functional circuit is respectively arranged in different module boxes and is fixed in the module boxes, and each modularized functional circuit module is obtained;
a plug connector (101) is arranged on the module box and is electrically connected with the corresponding functional circuit;
designing an interface circuit module, wherein the interface circuit module comprises a wiring box (10) and a plurality of plug holes (102) arranged on the wiring box (10), and the plug holes (102) are electrically connected according to the connection relation and requirements between the functional circuit modules;
and respectively inserting the plug connectors of the functional circuit modules into corresponding inserting holes (102) on the interface circuit module to obtain the modularized ignition exciter.
2. The method for designing and manufacturing the ignition exciter of the aircraft engine according to claim 1, designing a shell (1) matched with the obtained modularized ignition exciter, designing a power connector (2) and an output connector (3) on the shell (1), and respectively designing a power connector (103) electrically connected with the power connector (2) and an output connector (104) electrically connected with the output connector (3) in the box body;
a power supply plug hole and an output plug hole which are matched with the power supply plug connector (103) and the output plug connector (104) are designed on the wiring box (10).
3. The aircraft engine ignition exciter design and manufacturing method according to claim 2, characterized in that the interface circuit module is installed in the housing (1), and the power plug connector (103) and the output plug connector (104) are respectively inserted into the power plug hole and the output plug hole on the wiring box (10);
installing each functional circuit module into the shell (1), and correspondingly inserting the plug connectors (101) of each functional circuit module into the plug holes (102) on the wiring box;
a cover plate (11) is mounted on the housing (1).
4. The design and manufacturing method of the ignition exciter of the aircraft engine according to claim 2 or 3, characterized in that a clamping piece (111) is arranged at the mounting position corresponding to the functional circuit module in the shell (1), and a matched limit clamping groove (112) is arranged at the position corresponding to the clamping piece (111) on the functional circuit module;
when installing functional circuit module in casing (1), in joint spare (111) corresponds the card and establishes spacing draw-in groove (112), fix functional module circuit in casing (1).
5. The aircraft engine ignition exciter design and manufacturing method of claim 3, wherein the ignition exciter circuit is decomposed into:
the filter module (4) circuit is used for adjusting current and controlling the input power and the spark efficiency of the ignition exciter;
the boost module (5) circuit is used for boosting the low-voltage power input by the power supply to a high voltage;
the rectifying module (6) is used for rectifying and multiplying the voltage of the alternating current signal output by the circuit of the boosting module (5);
the energy storage module (7) is used for storing energy and forming an oscillation loop;
the discharge protection module (8) is used for releasing the energy stored by the energy storage module (7) when the stored energy reaches a design value;
and/or a secondary boost module (9) for secondary boost of the circuit.
6. The method of claim 1, wherein the functional circuit module is fabricated by a process comprising: and installing the functional circuit into the module box, and then pouring epoxy glue or foaming resin into the module box to fix the functional circuit.
7. The method for designing and manufacturing the ignition exciter of the aircraft engine as claimed in claim 1, wherein a positioning slot (114) and a mutually matched positioning piece (113) are arranged on the contact surface between the functional circuit modules.
8. The aeroengine ignition exciter design and manufacturing method of claim 3, wherein a seal threaded sleeve (12) is arranged on the cover plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210982995.0A CN115492688A (en) | 2022-08-16 | 2022-08-16 | Design and manufacturing method of ignition exciter of aircraft engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210982995.0A CN115492688A (en) | 2022-08-16 | 2022-08-16 | Design and manufacturing method of ignition exciter of aircraft engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115492688A true CN115492688A (en) | 2022-12-20 |
Family
ID=84466730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210982995.0A Pending CN115492688A (en) | 2022-08-16 | 2022-08-16 | Design and manufacturing method of ignition exciter of aircraft engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115492688A (en) |
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2022
- 2022-08-16 CN CN202210982995.0A patent/CN115492688A/en active Pending
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