CN201747464U - Signal matching box for aircraft engines - Google Patents
Signal matching box for aircraft engines Download PDFInfo
- Publication number
- CN201747464U CN201747464U CN2009202709869U CN200920270986U CN201747464U CN 201747464 U CN201747464 U CN 201747464U CN 2009202709869 U CN2009202709869 U CN 2009202709869U CN 200920270986 U CN200920270986 U CN 200920270986U CN 201747464 U CN201747464 U CN 201747464U
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- box body
- signal matching
- box
- matching box
- resistor network
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Abstract
The utility model provides a signal matching box for aircraft engines, comprising a rectangular box body, a resistor network, an electric connector and a lining board, wherein the rectangular box body is provided with an interior space and an installation surface; the resistor network is arranged in the rectangular box body; the electric connector is arranged on the installation surface of the box body, and connected with the resistor network through a conducting wire; the lining board is arranged in the box body, and the electric connector is fixed on the installation surface of the box body. By improving the mechanical structure of the traditional signal matching box, the quality of accessories and auxiliary material is strictly controlled, and the structure and shape dimension of the signal matching box can satisfy the matching requirements of the vortex shape series engines, thereby achieving the general requirements of mechanical property, environment-resistance property, quality, installation dimension and the like of the signal matching box, and ensuring the accuracy and high reliability of the displayed temperature of engine EECU.
Description
Technical field
The utility model relates to the Signal Matching box, in particular to a kind of Signal Matching box that is used for airplane engine.
Background technique
T45 Signal Matching box is important control parts of airplane engine, T45 Signal Matching box makes up the circumferentially average fuel gas temperature signal in the motor cross section that thermocouple assembly is sent here, distribute, offer EECU (Engine Electronic ControlUnit, Motronic control maps control gear) and cockpit instrument more respectively; Simultaneously, by the resistor network in the box signal processing circuit in EECU and the instrument is carried out zero-bit and slope adjustment.
The inventor finds that existing T45 Signal Matching box all can not satisfy the coupling requirement of whirlpool axle Engine Series on structure and boundary dimension.
The model utility content
The utility model aims to provide a kind of Signal Matching box that is used for airplane engine, can solve existing T45 Signal Matching box all can not satisfy the coupling requirement of whirlpool axle Engine Series on structure and boundary dimension problem.
In embodiment of the present utility model, a kind of Signal Matching box that is used for airplane engine is provided, comprising: rectangular box, it has inner space and attachment face; Resistor network is arranged on the inside of rectangular box; Electric coupler is arranged on the box body attachment face, is connected with resistor network by lead; Liner plate is positioned at box body and is used for electric coupler is fixed on the box body attachment face.
Preferably, resistor network is installed on the printed circuit board according to sign.
Preferably, box body is the thin-walled precision castings, and the wall thickness of box body is 1.8mm, and minimal tolerance is 0.2mm, is 0.5mm to the maximum.
Preferably, a plurality of electric couplers are 5, and 5 electric couplers are positioned on 4 attachment faces of box body.
Preferably, resistor network deviation resistance variations scope is 0～10876.6 Ω, and the slope resistance excursion is 0～10876.6 Ω.
Preferably, under the direct current of 10A ± 0.1A, the resistance between electric connector housing and the box body attachment face is smaller or equal to 3m Ω.
Preferably, between all pins of electric coupler and box body, pass to effective voltage, from 0V to 500V, progressively increase progressively, the frequency 50 to 60 hz, percentage speed variation≤500V/s, and keep 1min, by subtracting, insulating property are constant then.
Preferably, between all pins of electric coupler and box body, pass to the Ac that maximum effective voltage is 600V, and keep 5s～10s, percentage speed variation≤500V/s, insulating property are constant.
Preferably, box surface adopts chromate process to handle.
Preferably, it is characterized in that gross mass is less than or equal to 239g.
In the above-described embodiments, by existing T45 Signal Matching box is improved in mechanical structure, strictness is controlled to the quality of annex, auxiliary material, make the Signal Matching box on structure and boundary dimension, can both satisfy the coupling requirement of whirlpool axle Engine Series, simultaneously, make that Signal Matching box quality is lighter, more excellent aspect mechanical property, environmental resistance, guaranteed that motor EECU shows the accurate and high reliability of fuel gas temperature.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 shows the Signal Matching box plan view according to an embodiment of the utility model;
Fig. 2 shows according to an embodiment's of the utility model the electric coupler and the assembly relation sectional view of box body;
Fig. 3 shows the Signal Matching box left view according to an embodiment of the utility model;
Fig. 4 shows the Signal Matching box worm's eye view according to an embodiment of the utility model;
Fig. 5 shows the Signal Matching box plan view according to an embodiment of the utility model;
Fig. 6 shows the Signal Matching box circuit theory diagrams according to an embodiment of the utility model.
Fig. 7 shows the internal circuit schematic representation according to an embodiment's of the utility model resistor network.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Fig. 1 shows the Signal Matching box that is used for airplane engine according to embodiment of the utility model, comprising: rectangular box 10, be arranged on resistor network 20 in the box body, be arranged on the electric coupler XP1～XP5 on the box body attachment face.The temperature signal that records of thermocouple assembly is through electric coupler XP2, XP5 input signal matching box in the present embodiment, after 20 combinations of the resistor network in the box body, distributing, pass to EECU and pass to the aircraft cockpit display device through electric coupler XP3 respectively through electric coupler XP4.In the present embodiment, smeared conduction vaseline between box body and electric coupler surface of contact, made contact resistance littler, the housing electric conductivity is more excellent.
Fig. 2 shows according to an embodiment's of the utility model the electric coupler and the assembly relation sectional view of box body, shown among Fig. 2, electric coupler XP2 is fixed on the attachment face of box body 10 by liner plate 30.
Fig. 3 shows the Signal Matching box right elevation according to an embodiment of the utility model, shown among Fig. 3, XP1, XP4, XP5 are fixed on the box body attachment face, are connected with resistor network in box body, are used for the input and output of temperature signal.
Fig. 4 shows the Signal Matching box worm's eye view according to an embodiment of the utility model, shown among Fig. 4, XP2, XP3, XP4 and XP5 are fixed on box body 10 attachment faces, are connected with the resistor network of box body inside, are used for the input and output of temperature signal.
Fig. 5 shows the Signal Matching box plan view according to an embodiment of the utility model, shown among Fig. 5, XP1, XP2 and XP5 are fixed on the box body attachment face, are connected with the resistor network of box body inside, are used for the input and output of temperature signal.
Preferably, resistor network is installed on the printed circuit board according to sign.
Fig. 6 shows the Signal Matching box circuit theory diagrams according to an embodiment of the utility model, and each node of resistor network all links to each other when dispatching from the factory, and is equivalent to short circuit resistance.The temperature signal that thermocouple assembly records imports into through XP2, XP5, through parallel circuit, passes to EECU by XP1 in conjunction with the build-out resistor of XP3, passes to the aircraft cockpit display device by XP4 in conjunction with build-out resistor.When engine test, according to actual conditions, extract different resistance structure build-out resistors respectively, when a certain resistance of needs, cut off its connecting line.
Fig. 7 shows the internal circuit schematic representation according to an embodiment's of the utility model resistor network, numeral 1～7 via hole of representing on the printed circuit among the figure, the equal short circuit of all resistance in the resistor network when dispatching from the factory, in the time of need taking a certain resistance value, only need the via hole line of correspondence is cut off, for example: only need resistor network resistance R 2, then the line with via hole 2 cuts off.
Preferably, box body is the thin-walled precision castings, and wall thickness only is 1.8mm, and minimal tolerance is 0.2mm, is 0.5mm to the maximum.
Preferably, a plurality of electric couplers are 5, and 5 electric couplers are positioned on 4 attachment faces of box body.
Preferably, resistor network deviation resistance variations scope is 0～10876.6 Ω, and the slope resistance excursion is 0～10876.6 Ω.
Preferably, under the direct current of 10A ± 0.1A, the resistance between electric connector housing and the box body attachment face is smaller or equal to 3m Ω.
Preferably, between all pins of electric coupler and box body, pass to effective voltage, from 0V to 500V, progressively increase progressively, the frequency 50 to 60 hz, percentage speed variation≤500V/s, and keep 1min, by subtracting, insulating property are constant then.
Preferably, between all pins of electric coupler and box body, pass to the Ac that maximum effective voltage is 600V, and keep 5s～10s, percentage speed variation≤500V/s, insulating property are constant.
Preferably, box surface adopts chromate process to handle.
Preferably, it is characterized in that gross mass is less than or equal to 239g.
From above description, as can be seen, the utility model the above embodiments have realized following technique effect: by existing Signal Matching box is improved in mechanical structure, strictness is controlled to the quality of annex, auxiliary material, make the Signal Matching box on structure and boundary dimension, can both satisfy the coupling requirement of whirlpool axle Engine Series, reach of the general requirement of Signal Matching box, guaranteed the accurate and high reliability of shown temperature at aspects such as mechanical property, environmental resistance, quality, installation dimensions.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a Signal Matching box that is used for airplane engine is characterized in that, comprising:
Rectangular box, it has inner space and attachment face;
Resistor network is arranged on the inside of described rectangular box;
Electric coupler is arranged on the described box body attachment face, is connected with described resistor network by lead;
Liner plate is positioned at box body and is used for described electric coupler is fixed on described box body attachment face.
2. Signal Matching box according to claim 1 is characterized in that described resistor network is installed on the printed circuit board.
3. Signal Matching box according to claim 1 is characterized in that, described box body is the thin-walled precision castings, and the wall thickness of box body is 1.8mm, and minimal tolerance is 0.2mm, is 0.5mm to the maximum.
4. Signal Matching box according to claim 1 is characterized in that, described a plurality of electric couplers are 5, and described 5 electric couplers are positioned on 4 attachment faces of described box body.
5. Signal Matching box according to claim 1 is characterized in that, described resistor network deviation resistance variations scope is 0～10876.6 Ω, and the slope resistance excursion is 0～10876.6 Ω.
6. Signal Matching box according to claim 1 is characterized in that, under the direct current of 10A ± 0.1A, the resistance between electric connector housing and the box body attachment face is smaller or equal to 3m Ω.
7. Signal Matching box according to claim 1 is characterized in that, described box surface adopts chromate process to handle.
8. Signal Matching box according to claim 1 is characterized in that, its gross mass≤239g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202709869U CN201747464U (en) | 2009-12-03 | 2009-12-03 | Signal matching box for aircraft engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202709869U CN201747464U (en) | 2009-12-03 | 2009-12-03 | Signal matching box for aircraft engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747464U true CN201747464U (en) | 2011-02-16 |
Family
ID=43582147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202709869U Expired - Lifetime CN201747464U (en) | 2009-12-03 | 2009-12-03 | Signal matching box for aircraft engines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747464U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542959A (en) * | 2013-10-29 | 2014-01-29 | 中国航空动力机械研究所 | Method for calibrating average temperature of T45 section of turboshaft engine |
| CN104007323A (en) * | 2014-06-13 | 2014-08-27 | 四川亚美动力技术有限公司 | Engine power output rotary shaft torque signal matching box resistance detection circuit |
| CN104019926A (en) * | 2014-06-13 | 2014-09-03 | 四川亚美动力技术有限公司 | Thermocouple matching box for detecting temperature between turbines of engine |
| CN104919142A (en) * | 2012-11-13 | 2015-09-16 | 微型涡轮公司 | Aircraft turbomachine computer |
-
2009
- 2009-12-03 CN CN2009202709869U patent/CN201747464U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919142A (en) * | 2012-11-13 | 2015-09-16 | 微型涡轮公司 | Aircraft turbomachine computer |
| CN104919142B (en) * | 2012-11-13 | 2016-12-21 | 微型涡轮公司 | Aircraft turbine computer |
| CN103542959A (en) * | 2013-10-29 | 2014-01-29 | 中国航空动力机械研究所 | Method for calibrating average temperature of T45 section of turboshaft engine |
| CN103542959B (en) * | 2013-10-29 | 2015-12-30 | 中国航空动力机械研究所 | The medial temperature calibration steps in turboshaft engine T45 cross section |
| CN104007323A (en) * | 2014-06-13 | 2014-08-27 | 四川亚美动力技术有限公司 | Engine power output rotary shaft torque signal matching box resistance detection circuit |
| CN104019926A (en) * | 2014-06-13 | 2014-09-03 | 四川亚美动力技术有限公司 | Thermocouple matching box for detecting temperature between turbines of engine |
| CN104007323B (en) * | 2014-06-13 | 2017-02-22 | 四川亚美动力技术有限公司 | Engine power output rotary shaft torque signal matching box resistance detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
|
| CX01 | Expiry of patent term |