Conductive device, conductive system, aeroengine and aeroengine test bed

Abstract

The present disclosure relates to a kind of electrically conductive device, electrically conductive system, aero-engine and aero-engine test stand, wherein the electrically conductive device includes: electrically conductive piece (1), with the through hole (13) for the fastener of electromechanical equipment (4) to pass through;Nut (2) has the threaded hole (24) for cooperating with fastener (7);And limiting piece (3) is connected to electrically conductive piece (1) and is used to limit nut (2);Wherein, nut (2) and limiting piece (3) are located on the same side of electrically conductive piece (1) along the thickness direction, and the thickness direction is consistent with the axial direction of nut (2).

Description

Technical Field

[0001] This disclosure relates to the field of engine electrical design technology, and in particular to a conductive device, a conductive system, an aero-engine, and an aero-engine test stand. Background Technology

[0002] Aircraft engines contain a variety of electromechanical devices to acquire various signals from different locations to support the normal operation of the engine. Multiple conductive devices are required to transmit signals from sensors and other electromechanical devices to the acquisition equipment.

[0003] In the prior art known to the inventor, some engines use cables to achieve electrical connections. For example, one end of the cable is connected to a sensor and the other end is connected to a data acquisition device. The cable end is often a connector, and the sealing ring in the connector has low temperature resistance, which makes the operating temperature of the cable end very limited and unable to withstand the temperature field of high-temperature components such as the combustion chamber and turbine. Summary of the Invention

[0004] The embodiments of this disclosure provide a conductive device, a conductive system, an aero-engine, and an aero-engine test stand, which can improve the reliability of electrical signal output of electromechanical equipment.

[0005] According to a first aspect of this disclosure, a conductive device is provided, comprising:

[0006] Conductive component having through holes through which fasteners of electromechanical equipment pass;

[0007] Nuts having threaded holes for mating with fasteners; and

[0008] A limiting component, connected to a conductive component and used to limit the movement of a nut;

[0009] The nut and the limiting component are located on the same side of the conductive component along the thickness direction, and the thickness direction is consistent with the axial direction of the nut.

[0010] In some embodiments, the conductive element includes a first part and a second part. The first part has a through hole and is used for electrical connection with the conductive surface of the electromechanical equipment. The second part is connected to the first part and is used for outputting an electrical signal.

[0011] In some embodiments, the conductive device further includes an elastic baffle disposed on the inner wall of the through hole, the elastic baffle being configured to be embedded in the thread of the fastener when the fastener is engaged with the threaded hole.

[0012] In some embodiments, the limiting element and the conductive element are integrated by welding and / or riveting.

[0013] In some embodiments, the nut includes a third portion and a fourth portion connected axially, the outer diameter of the third portion being smaller than that of the fourth portion, and a limiting member limiting the nut by engaging with a step formed by the third portion and the fourth portion.

[0014] In some embodiments, the outer wall of the third part is provided with an anti-slip portion.

[0015] In some embodiments, the limiting member includes:

[0016] The receiving part has an internal cavity extending through both ends along the axial direction for accommodating the fourth part; and

[0017] The limiting part is axially connected to the end of the receiving part away from the conductive part, and is used to limit the nut.

[0018] In some embodiments, the limiting member further includes:

[0019] The spacer is axially connected to one end of the receiving portion near the conductive element, and the spacer is located between the fourth portion and the conductive element so that the fourth portion is spaced apart from the conductive element.

[0020] In some embodiments, the limiting member and the nut form a pre-assembled assembly.

[0021] According to a second aspect of this disclosure, a conductive system is proposed, comprising:

[0022] The conductive device described in the above embodiments; and

[0023] Electromechanical equipment has fasteners and conductive surfaces. The fasteners pass through through holes and engage with threaded holes, and the conductive surfaces are electrically connected to conductive components.

[0024] According to a third aspect of this disclosure, an aero-engine is proposed, including the conductive device or conductive system of the above embodiments.

[0025] According to a fourth aspect of this disclosure, an aero-engine test stand is provided, including the conductive device or conductive system of the above embodiments.

[0026] Based on the above technical solution, the conductive device of this disclosure includes a conductive component, a nut, and a limiting component. The conductive component is used to electrically connect the output signal of the electromechanical equipment to other equipment. It is made of a metal material with high temperature resistance, which can improve the environmental tolerance of the cable end, improve the conductivity reliability and service life. Moreover, the conductive device can be adapted to nuts of different standards as needed, increasing the versatility of the conductive device for different electromechanical equipment. In addition, since the nut is limited by the limiting component, it can prevent the nut from falling off due to vibration after long-term operation, which can further improve the conductivity reliability and prevent foreign objects from falling off and affecting the working safety of the electromechanical equipment. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and are used to explain this disclosure, but do not constitute an undue limitation of this disclosure. In the drawings:

[0028] Figure 1 This is a schematic diagram of the structure of some embodiments of the conductive system disclosed herein.

[0029] Figure 2 This is an enlarged schematic diagram of the structure of some embodiments of the conductive system disclosed herein.

[0030] Figure 3 This is a schematic diagram of the structure of some embodiments of the conductive device disclosed herein.

[0031] Figure 4 This is a schematic diagram of the welding / riveting points of the limiting member and the conductive member in some embodiments of the conductive device disclosed herein.

[0032] Explanation of reference numerals in the attached figures

[0033] 1. Conductive component; 2. Nut; 3. Limiting component; 4. Electromechanical equipment; 5. Elastic baffle; 6. Welding / riveting point; 7. Fastener; 11. First part; 12. Second part; 13. Through hole; 21. Third part; 22. Fourth part; 23. Anti-slip part; 24. Threaded hole; 31. Receiving part; 32. Limiting part; 33. Spacer part; 41. Conductive surface. Detailed Implementation

[0034] The present disclosure is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. The aspects so defined may be combined with any other aspect or aspects unless expressly stated otherwise. In particular, any feature considered preferred or advantageous may be combined with one or more other features considered preferred or advantageous.

[0035] The terms “first,” “second,” “third,” and “fourth” used in this disclosure are for ease of description and to distinguish different components with the same name, and do not indicate any sequential or primary / secondary relationship.

[0036] In the description of this disclosure, it should be understood that the terms “inner,” “outer,” “upper,” “lower,” “left,” and “right,” etc., which indicate orientation or positional relationship, are defined based on nuts, through holes, and threads, etc., and are only for the convenience of describing this disclosure, and are not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure.

[0037] To improve the environmental tolerance of the cable ends, the inventors creatively designed a new interface for the signal output of electromechanical devices such as sensors. The sensor now uses a terminal block structure for signal output, and one end of the cable is made of a heat-resistant metal material as a conductive element, such as a conductive ring, to connect to the sensor. After the conductive ring is connected to the sensor, it is secured with a nut to ensure stable signal transmission during engine operation. In this design, a torque verification step during installation ensures that the nut will not fall off during engine operation.

[0038] The above solution improves the tolerance of the cable end to the operating environment, but the stability of signal transmission is only guaranteed by the installation torque of the nut, without any anti-loosening design. Furthermore, since the nut is a separate installation part and a small part, extra attention needs to be paid to the risk of excess material management in the nut.

[0039] Based on the above-mentioned improvement ideas, this disclosure provides a conductive device, such as... Figure 1 Combination Figure 2 As shown, the device includes: a conductive element 1, a nut 2, and a limiting element 3. The conductive element 1 has a through hole 13 through which a fastener 7 of the electromechanical equipment 4 passes. The nut 2 has a threaded hole 24 for engaging with the fastener 7. The limiting element 3 is connected to the conductive element 1 and is used to limit the nut 2. The nut 2 and the limiting element 3 are located on the same side of the conductive element 1 away from the electromechanical equipment 4 along its thickness direction, and the thickness direction is aligned with the axial direction of the nut 2.

[0040] For example, electromechanical device 4 can be a sensor that outputs signals to a data acquisition device or controller via conductive component 1; or electromechanical device 4 can be any other device that requires the output of electrical signals. For example, conductive component 1 can be a thin plate structure made of conductive materials such as metal. For example, fastener 7 can be a screw, bolt, or a threaded mounting interface of electromechanical device 4 such as a sensor, and fastener 7 is used to achieve a mechanical connection between conductive component 1 and electromechanical device 4. For example, limiting component 3 can be any form that serves a limiting function, such as a housing structure or a claw-type structure. Optionally, limiting component 3 and conductive component 1 can be connected in any way, such as a fixed connection or a detachable connection.

[0041] In this embodiment, the conductive component 1 is used to electrically connect the output signal of the electromechanical equipment 4 to other equipment. It is made of a metal material with high temperature resistance, which can improve the environmental tolerance of the cable end, improve the conductivity reliability and service life. Moreover, the conductive device can be adapted to nuts 2 of different standards as needed, improving the versatility of the conductive device for different electromechanical equipment 4. In addition, since the nut 2 is limited by the limiting component 3, it can prevent the nut 2 from falling off due to vibration after long-term operation, which can further improve the conductivity reliability and prevent foreign objects from falling off and affecting the working safety of the electromechanical equipment 4.

[0042] In some embodiments, such as Figure 3 As shown, the conductive element 1 includes a first part 11 and a second part 12. The first part 11 has a through hole 13 and is used for electrical connection with the conductive surface 41 of the electromechanical equipment 4. The second part 12 is connected to the first part 11 and is used for outputting electrical signals. For example, when the first part 11 of the conductive element 1 adopts a ring-shaped design, it can also be called a conductive ring.

[0043] Specifically, the second part 12 can be electrically connected to a signal receiving device, which receives the output signal from the electromechanical device 4 for subsequent processing. For example, the signal receiving device can be a signal acquisition device or a controller, so that the conductive element 1 can transmit the signal acquired from the electromechanical device 4, such as a sensor, to the signal receiving device. Optionally, depending on the actual situation and the needs of the technicians, the second part 12 can be directly electrically connected to the signal receiving device, or it can be electrically connected to the signal receiving device via a cable.

[0044] Such a conductive device can avoid the use of connectors with poor high-temperature resistance, and the ring design can reduce the risk of the conductive part 1 falling off due to radial vibration, thereby improving the environmental resistance of the cable end and further improving the conductivity reliability and service life.

[0045] In some embodiments, the conductive device further includes an elastic baffle 5 disposed on the inner wall of the through hole 13. The elastic baffle 5 is configured to be embedded in the threads of the fastener 7 when the fastener 7 is engaged with the threaded hole 24. During the relative movement of the conductive element 1 relative to the fastener 7, the elastic baffle 5 deforms to avoid affecting the relative movement of the conductive element 1 relative to the fastener 7.

[0046] Optionally, the elastic baffle 5 can be disposed on the inner wall of the through hole 13 in any manner, for example, in some embodiments it is fixed to the body of the conductive element 1 using a tenon and mortise structure.

[0047] After the nut 2 is tightened, the elastic baffle 5 will stay in the thread of the fastener 7, preventing the conductive part 1 from loosening from the fastener 7 of the electromechanical equipment 4, and ensuring that the conductive part 1 is continuously and stably electrically connected to the conductive surface 41 of the electromechanical equipment 4 after it is installed in place.

[0048] In some embodiments, the limiting member 3 and the conductive member 1 are integrated by welding and / or riveting.

[0049] In this embodiment, the welding / riveting point 6 is as follows: Figure 4As shown, by welding and / or riveting the limiting member 3 and the conductive member 1 together, the limiting member 3 can limit the nut 2 to prevent it from falling off, and the conductive member 1 and the limiting member 3 can be connected together in a fixed manner to prevent the limiting member 3 from falling off, thereby further avoiding the risk of excess material management of small parts.

[0050] In some embodiments, such as Figure 2 As shown, the nut 2 includes a third part 21 and a fourth part 22 connected along the axial direction. The outer diameter of the third part 21 is smaller than that of the fourth part 22. The limiting member 3 limits the nut 2 by engaging with the step formed by the third part 21 and the fourth part 22.

[0051] This embodiment divides the nut 2 into a third part 21 and a fourth part 22, where the outer diameter of the third part 21 is smaller than that of the fourth part 22. A step can be formed between the third part 21 and the fourth part 22 for the limiting member 3 to perform the limiting function. Compared to a nut with a fixed outer diameter, the arrangement of the limiting member 3 is more flexible and improves the reliability of the limiting function. For example, in this embodiment, the limiting member 3 can engage with the step formed by the third part 21 and the fourth part 22. Optionally, as long as the limiting member 3 functions to limit the nut 2, the limiting member 3 is not limited to the engaging method; for example, it can engage through a housing structure or a claw-type structure.

[0052] In some embodiments, the outer wall of the third part 21 is provided with an anti-slip portion 23. The anti-slip portion 23 can be a protrusion, a groove, or knurling, for example, when a groove is provided, multiple long grooves can be provided at intervals along the circumference of the third part 21.

[0053] In this embodiment, the anti-slip part 23 can play an anti-slip role during the rotation of the nut 2, which facilitates installation and disassembly, thereby improving work efficiency.

[0054] In some embodiments, such as Figure 2 As shown, the limiting member 3 includes:

[0055] The receiving portion 31 has an inner cavity extending through both ends along the axial direction for accommodating the fourth part 22; and

[0056] The limiting part 32 is axially connected to the end of the receiving part 31 away from the conductive member 1, and is used to limit the nut 2.

[0057] This embodiment further defines the structural form of the limiting member 3 by dividing it into a receiving portion 31 and a limiting portion 32. The receiving portion 31 is used to receive the fourth part 22 of the nut 2, and the limiting portion 32 is used to limit the nut 2 by engaging with the step formed by the third part 21 and the fourth part 22. Similarly, as long as the limiting portion 32 plays a limiting role in the nut 2, the limiting portion 32 is not limited to the engaging form. For example, it can be engaged by a shell structure or by a claw-type structure.

[0058] In some embodiments, the limiting member 3 may further include:

[0059] The spacer 33 is axially connected to one end of the receiving portion 31 near the conductive member 1, and the spacer 33 is located between the fourth portion 22 and the conductive member 1, so that the fourth portion 22 and the conductive member 1 are spaced apart.

[0060] In this embodiment, the spacer 33 ensures that during the installation or removal of the nut 2, the conductive element 1 gradually moves closer to or further away from the fastener 7 of the electromechanical equipment 4 as the nut 2 rotates, and the conductive element 1 does not rotate with the nut 2. When the second part 12 of the conductive element 1 has already established an electrical connection with the signal receiving device, this embodiment allows the conductive element 1 to remain fixed, effectively avoiding operational obstacles such as cable tangling and increasing ease of use.

[0061] Optionally, depending on the actual situation and the needs of the technicians, the limiting member 3 and the nut 2 can have a gap or be in direct contact, and the limiting member 3 and the conductive member 1 can have a gap or be in direct contact.

[0062] For example, in some embodiments, the limiting member 3 is in direct contact with the nut 2 and the conductive member 1. During the installation or removal of the nut 2, the conductive member 1 will gradually move closer to or further away from the fastener 7 of the electromechanical equipment 4 as the nut 2 rotates, and the conductive member 1 will rotate as the nut 2 rotates. This is permissible when the second part 12 of the conductive member 1 is not electrically connected to the signal receiving device.

[0063] In some embodiments, the limiting member 3 and the nut 2 form a pre-assembled assembly. Here, "pre-assembled assembly" means that before assembling the conductive member 1 and the limiting member 3, the limiting member 3 has been pre-assembled with the nut 2, so as to be installed as an integral assembly with the conductive member 1. The limiting member 3 and the conductive member 1 can be connected in any way, such as a fixed connection or a detachable connection.

[0064] In this embodiment, the limiting member 3 and the nut 2 form a pre-assembled assembly before being connected to the conductive member 1. This arrangement of processes can integrate the nut 2 and the limiting member 3 together for assembly, which can more reliably limit the nut 2 and further avoid the risk of excess material management of the nut.

[0065] In some embodiments, the limiting member 3 is a housing, and the housing and nut 2 form a pre-assembled assembly. The housing is also integrated with the first part 11 of the conductive member 1 by welding / riveting. This integrated design completely avoids the risk of excess material management. By adjusting the housing size as needed, different standards and specifications of nuts 2 can be accommodated, increasing the versatility of the conductive device.

[0066] Secondly, this disclosure provides a conductive system, such as Figure 1 Combination Figure 2 As shown, it includes:

[0067] The conductive device described in the above embodiments; and

[0068] The electromechanical equipment 4 has a fastener 7 and a conductive surface 41. The fastener 7 passes through the through hole 13 and engages with the threaded hole 24. The conductive surface 41 is electrically connected to the conductive component 1.

[0069] Optionally, the conductive system may further include a signal receiving device electrically connected to the conductive element 1. Specifically, it is electrically connected to the second part 12 of the conductive element 1. The conductive element 1 is used to transmit the signal output by the electromechanical device 4 to the signal receiving device. For example, the electromechanical device 4 is a sensor, and the signal receiving device is a signal acquisition device. Through the electrical connection between the conductive surface 41 and the conductive element 1, and the electrical connection between the conductive element 1 and the signal acquisition device, the output signal of the sensor can be stably transmitted to the signal acquisition device.

[0070] The conductive system of this embodiment connects the sensor and other electromechanical devices 4 to the conductive device through a simple threaded bolt structure. The conductive component 1 is made of a high-temperature resistant metal material, which significantly improves its environmental tolerance and ensures the reliability of electrical signal transmission in the conductive system. The conductive device in this system can be adapted to nuts of different standards, improving its versatility for various electromechanical devices 4. The addition of a limiting component 3 prevents the nut 2 used for fixing from loosening, while also mitigating the risk of managing small parts and foreign objects, thus improving the safety of the conductive system's operation.

[0071] Furthermore, this disclosure provides an aircraft engine including the conductive device or conductive system of the above embodiments.

[0072] Furthermore, this disclosure also provides an aircraft engine test stand, including the conductive device or conductive system of the above embodiments.

[0073] The conductive device, conductive system, aero-engine, and aero-engine test stand provided in this disclosure have been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of this disclosure. The descriptions of these embodiments are merely for the purpose of helping to understand the methods and core ideas of this disclosure. It should be noted that those skilled in the art can make various improvements and modifications to this disclosure without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this disclosure.

Claims

1. A conductive device, characterized in that, include: The conductive element (1) has a through hole (13) through which fasteners (7) of the electromechanical equipment (4) pass. Nut (2), having a threaded hole (24) for mating with the fastener (7); and A limiting member (3) is connected to the conductive member (1) and is used to limit the nut (2) to prevent the nut (2) from loosening. The limiting member (3) and the conductive member (1) are integrated by welding and / or riveting. Wherein, the nut (2) and the limiting member (3) are located on the same side of the conductive member (1) along the thickness direction, and the thickness direction is consistent with the axial direction of the nut (2); the nut (2) includes a third part (21) and a fourth part (22) connected along the axial direction, the outer diameter of the third part (21) is smaller than that of the fourth part (22), and the limiting member (3) limits the nut (2) by engaging with the step formed by the third part (21) and the fourth part (22); the limiting member (3) includes: a receiving part (31) having an inner cavity that extends through both ends along the axial direction for receiving the fourth part (22); and a limiting part (32) connected along the axial direction to one end of the receiving part (31) away from the conductive member (1) for limiting the nut (2).

2. The conductive device according to claim 1, characterized in that, The conductive element (1) includes a first part (11) and a second part (12). The first part (11) is provided with the through hole (13) and is used to be electrically connected to the conductive surface (41) of the electromechanical equipment (4). The second part (12) is connected to the first part (11) and is used to output electrical signals.

3. The conductive device according to claim 1, characterized in that, It also includes an elastic baffle (5) disposed on the inner wall of the through hole (13), the elastic baffle (5) being configured to be embedded in the thread of the fastener (7) when the fastener (7) and the threaded hole (24) are in place.

4. The conductive device according to claim 1, characterized in that, The outer wall of the third part (21) is provided with an anti-slip part (23).

5. The conductive device according to claim 1, characterized in that, The limiting member (3) also includes: A spacer (33) is connected along the axial direction to one end of the receiving portion (31) near the conductive member (1), and the spacer (33) is located between the fourth portion (22) and the conductive member (1) so that the fourth portion (22) is spaced apart from the conductive member (1).

6. The conductive device according to claim 5, characterized in that, The limiting member (3) and the nut (2) form a pre-assembled assembly.

7. A conductive system, characterized in that, include: The conductive device according to any one of claims 1 to 6; and The electromechanical equipment (4) has the fastener (7) and the conductive surface (41), the fastener (7) passes through the through hole (13) and engages with the threaded hole (24), and the conductive surface (41) is electrically connected to the conductive component (1).

8. An aircraft engine, characterized in that, Includes the conductive device according to any one of claims 1 to 6 or the conductive system according to claim 7.

9. An aircraft engine test stand, characterized in that, Includes the conductive device according to any one of claims 1 to 6 or the conductive system according to claim 7.

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