Lifting type anti-collision lamp capable of being retracted after power failure

Abstract

The invention provides a lifting type anti-collision lamp capable of being retracted after power failure, and belongs to the technical field of external lighting of airplanes, and the lifting type anti-collision lamp specifically comprises a shell, a lifting assembly, a lamp holder assembly and a standby power supply assembly; the lifting assembly is installed in the shell, the lamp holder assembly is installed at the output end of the lifting assembly, and the lifting assembly drives the lamp holder assembly to stretch out of the shell and retract into the shell; the standby power supply assembly is installed in the shell and comprises an input positive electrode, an input negative electrode, a power conversion module, an energy storage capacitor, an output negative electrode and an output positive electrode, the input positive electrode and the input negative electrode are electrically connected with an onboard power supply, and the output positive electrode and the output negative electrode are electrically connected with a power supply terminal of the lifting assembly; the power conversion module is used for reducing the voltage of the onboard power supply by 1-2V and then outputting the voltage, and the standby power supply assembly supplies power to the lifting assembly to drive the lamp holder assembly to be retracted. And when power supply of the lifting type anti-collision lamp is abnormal, the lifting type anti-collision lamp can retract to improve flight safety.

Description

Technical Field

[0001] The present application relates to the field of aircraft exterior lighting, and in particular to a lifting anti-collision lamp which can be retracted after power failure. Background Art

[0002] Navigation / anti-collision lights are key lighting equipment on the outside of aircraft. They are mainly used to remind our aircraft, vehicles and personnel that the aircraft engine is running, and to keep a safe distance from the aircraft to prevent collision. Normally, the aircraft should turn off the navigation / anti-collision lights when performing tasks, and turn on the navigation / anti-collision lights in normal flight, taxiing, and engine start-up. Navigation / anti-collision lights have a high frequency of use and are located outside the fuselage, which makes the navigation / anti-collision lights exposed to the outside for a long time, resulting in a shortened lampshade life. The traditional flat navigation / anti-collision lampshade has the problems of high coating difficulty and easy film shedding, and the existing coating technology is limited, and the lampshade film layer has exposed many problems. Traditional fixed navigation / anti-collision lights generally use improved materials or increase maintenance efforts to increase the life of the lampshade, but the research and development of lampshade materials and the change and improvement of light sources have led to an increase in aircraft cost and weight; at the same time, in order to ensure the protective performance, China usually adopts methods such as improving the coating process or improving the coating material to ensure the good protective effect of the lampshade, but such methods will also increase the cost of the aircraft. Summary of the invention

[0003] In view of this, the present application provides a lift-type anti-collision lamp that can be retracted after power failure, which solves the problems in the prior art and can be retracted when the power supply of the lift-type anti-collision lamp is abnormal to improve flight safety.

[0004] The present application provides a retractable lifting anti-collision lamp that can be retracted after power failure, which adopts the following technical solution:

[0005] A lifting anti-collision lamp that can be retracted after power failure, comprising a housing, a lifting assembly, a lamp head assembly and a backup power supply assembly; the lifting assembly is installed in the housing, the lamp head assembly is installed on the output end of the lifting assembly, and the lifting assembly drives the lamp head assembly to extend out of the housing and retract into the housing;

[0006] The backup power supply assembly is installed in the shell, and the backup power supply assembly includes an input positive electrode, an input negative electrode, a power conversion module, an energy storage capacitor, an output negative electrode and an output positive electrode, the input positive electrode and the input negative electrode are electrically connected to the on-board power supply, and the output positive electrode and the output negative electrode are electrically connected to the power supply terminal of the lifting assembly;

[0007] The input end of the power conversion module is electrically connected to the input positive electrode and the input negative electrode, the output end of the power conversion module is electrically connected to the output negative electrode and the output positive electrode, the output positive electrode is also directly connected to the input positive electrode through a wire, and the output negative electrode is also directly connected to the output negative electrode through a wire, and the power conversion module is used to step down the voltage of the onboard power supply by 1 to 2V and then output it;

[0008] The energy storage capacitor is connected to the wire connecting the power conversion module and the input positive pole, and the energy storage capacitor is connected to the wire connecting the power conversion module and the output positive pole. One end of the energy storage capacitor is connected to the input positive pole or the output positive pole, and the other end of the energy storage capacitor is grounded.

[0009] Optionally, the lifting assembly includes a driving motor, a sleeve, a planetary threaded column, a screw and a limiting structure, the sleeve is electrically connected to the output end of the driving motor, a plurality of planetary threaded columns are provided, and the plurality of planetary threaded columns surround the outer circumference of the screw, the planetary threaded column and the screw are threadedly connected, and the planetary threaded column and the inner wall of the sleeve are threadedly connected, and the limiting structure is installed in the housing, and the limiting structure is used to limit the circumferential rotation of the screw or the lamp head assembly around the screw.

[0010] Optionally, the limiting structure includes a guide ridge arranged on the outer periphery of the lamp holder assembly and a guide groove located on the inner wall of the shell, and the guide ridge slides along the guide groove along the length direction of the lead screw.

[0011] Optionally, the driving motor is a frameless torque motor, and the rotor and sleeve of the frameless torque motor are fixedly connected.

[0012] Optionally, the lift-type anti-collision lamp that can be retracted after power failure further includes a position control component, which is installed in the housing and is used to control the lifting component to be powered off when the lamp head is extended or retracted to an extreme position.

[0013] Optionally, the position control assembly includes a movable pull rod, a first position sensor and a second position sensor. The movable pull rod is fixedly connected to the lamp head assembly, and the length direction of the movable pull rod is arranged along the lifting direction of the lamp head assembly. The first position sensor and the second position sensor are arranged at intervals along the lifting direction of the lamp head assembly. A baffle is provided at one end of the movable pull rod. When the lamp head assembly is extended to the extreme position, the baffle corresponds to the first position sensor. When the lamp head assembly is retracted to the extreme position, the baffle corresponds to the second position sensor. The first position sensor and the second position sensor are both electrically connected to the lifting assembly.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] When the onboard power supply is abnormal or outage occurs, the backup power supply assembly supplies power to the lifting assembly to drive the lamp head assembly to still be retracted, thereby improving flight safety.

[0016] In the embodiment of the present application, a sleeve, a lead screw and a planetary roller with an internal thread are particularly used as a transmission mechanism, which can improve the transmission efficiency of the mechanism, make its structure compact and prolong its service life.

[0017] When the lamp head assembly is extended to the limit position and when the lamp head assembly is retracted to the limit position, the driver controls the motor to stop rotating to prevent overshoot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the lifting anti-collision lamp that can be retracted after power failure in this application;

[0020] Figure 2 The principle block diagram of the backup power supply component for this application;

[0021] Figure 3 This is a schematic diagram of the structure of the housing and the drive motor of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the transmission mechanism in the embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of the structure of the position control component of this application.

[0024] Explanation of the reference numerals: 1. lamp holder assembly; 2. position control assembly; 21. pull rod; 22. baffle; 23. first position sensor; 24. second position sensor; 3. frameless torque motor; 31. driver; 32. rotor; 33. clutch; 34. base plate; 35. stator; 4. transmission mechanism; 41. sleeve; 42. planetary thread column; 43. lead screw; 5. housing; 6. backup power supply assembly; 51. input negative pole; 52. onboard power supply; 53. input positive pole; 54. energy storage capacitor; 55. power conversion module; 57. first conductor; 58. second conductor; 59. output positive pole; 60. output negative pole; 61. fourth conductor; 62. third conductor. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0026] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0027] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0028] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0029] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0030] An embodiment of the present application provides a lift-type anti-collision lamp that can be retracted after power failure.

[0031] like Figure 1 and Figure 2 As shown, a lifting anti-collision lamp that can be retracted after power failure includes a shell 5, a lifting assembly, a lamp head assembly 1 and a backup power supply assembly 6; the lifting assembly is installed in the shell 5, the lamp head assembly 1 is installed on the output end of the lifting assembly, and the lifting assembly drives the lamp head assembly 1 to extend out of the shell 5 and retract into the shell 5.

[0032] The backup power supply component 6 is installed in the shell 5, and the backup power supply component 6 includes an input positive pole 53, an input negative pole 51, a power conversion module 55, a storage capacitor 54, an output negative pole 60 and an output positive pole 59. The input positive pole 53 and the input negative pole 51 are electrically connected to the on-board power supply 52, and the output positive pole 59 and the output negative pole 60 are electrically connected to the power supply terminal of the lifting component.

[0033] The input end of the power conversion module 55 is electrically connected to the input positive electrode 53 and the input negative electrode 51, the output positive electrode of the power conversion module 55 is electrically connected to the output positive electrode 59 through the first wire 57, the output negative electrode of the power conversion module 55 is electrically connected to the output negative electrode 60 and the output positive electrode 59 through the second wire 58, the output positive electrode 59 is also directly connected to the input positive electrode 53 through the third wire 62, and the output negative electrode 60 is also directly connected to the output negative electrode 60 through the fourth wire 61. The power conversion module 55 is used to reduce the voltage of the onboard power supply 52 by 1 to 2V and then output it.

[0034] The energy storage capacitor 54 is connected to the wire connecting the power conversion module 55 and the input positive electrode 53, and the energy storage capacitor 54 is connected to the wire connecting the power conversion module 55 and the output positive electrode 59. One end of the energy storage capacitor 54 is connected to the input positive electrode 53 or the output positive electrode 59, and the other end of the energy storage capacitor 54 is grounded. The energy storage capacitor 54 of the application is provided with multiple ones.

[0035] When the onboard power supply is output at a normal voltage from the onboard power supply 52 to the input positive electrode 53 and the input negative electrode 51, the power conversion module 55 will convert the normal power supply voltage down to 1 to 2VDC, and the energy storage capacitor 54 will charge and store energy. Since the output voltage of the power conversion module 55 is lower than the output voltage of the onboard power supply 52, the power conversion module 55 does not output voltage and current to the output negative electrode 60 and the output positive electrode 59. At this time, the power supply is output from the onboard power supply 52 to the input positive electrode 53 and the input negative electrode 51 through the third wire 62 and the fourth wire 61 to the output positive electrode 59 and the output negative electrode 60, and the power is supplied to the lifting component. When the onboard power supply 52 is interrupted or drops below the normal voltage range, the energy storage capacitor 54 is discharged at this time, and outputs to the output positive electrode 59 and the output negative electrode 60 through the first wire 57 and the second guide, and supplies power to the lifting component to retract the lamp head to zero position. When the onboard power supply is abnormal or power is cut off, the backup power supply component 6 supplies power to the lifting component to drive the lamp head component 1 to still be retracted, so as to improve flight safety.

[0036] When the lamp holder assembly 1 in the embodiment of the present application is retracted to the extreme position, the exposed surface of the lamp holder assembly 1 is conformally designed to the aircraft skin, which has a compact structure and improves the aerodynamic shape of the aircraft, thereby enhancing the weather resistance of the product.

[0037] like Figure 3 and Figure 4 As shown, the lifting assembly includes a driving motor, a sleeve 41, a planetary threaded column 42, a lead screw 43 and a limiting structure. The sleeve 41 is electrically connected to the output end of the driving motor. A plurality of planetary threaded columns 42 are provided, and the plurality of planetary threaded columns 42 surround the outer circumference of the lead screw 43. The planetary threaded column 42 and the lead screw 43 are threadedly connected, and the planetary threaded column 42 and the inner wall of the sleeve 41 are threadedly connected. The limiting structure is installed in the housing 5, and the limiting structure is used to limit the circumferential rotation of the lead screw 43 or the lamp holder assembly 1 around the lead screw 43.

[0038] In the embodiment of the present application, the sleeve 41 with internal threads, the lead screw 43 and the planetary threaded column 42 are particularly used as the transmission mechanism 4, which can improve the transmission efficiency of the mechanism, make it compact and have a longer life, and the transmission mechanism 4 has the advantages of compact structure and high load capacity, making the navigation / anti-collision light structure more compact and further reducing the weight. There are no wearing parts in the planetary roller nut mechanism, which has a longer service life and can further improve the service life and reliability of the lifting navigation / anti-collision light.

[0039] The limiting structure includes a guide ridge arranged on the outer periphery of the lamp head assembly 1 and a guide groove located on the inner wall of the housing 5 . The guide ridge slides along the guide groove along the length direction of the lead screw 43 .

[0040] The driving motor is a frameless torque motor 3, the rotor 32 and sleeve 41 of the frameless torque motor 3 are fixedly connected, and the frameless torque motor 3 includes a driver 31, a motor rotor 32, a clutch 33, a base plate 34, and a stator 35; the frameless torque motor 3 is fixed in the housing 5 through the base plate 34, the motor rotor 32 is placed inside the frameless torque motor 3, and is connected to the planetary roller nut sleeve 41, and the driver 31 converts the position information of the frameless torque motor 3 into an electrical signal to achieve precise control of the frameless torque motor 3.

[0041] like Figure 5 As shown, the lift-type anti-collision lamp that can be retracted after power failure also includes a position control component 2, which is installed in the housing 5 and is used to control the lifting component to be powered off when the lamp head is extended or retracted to an extreme position.

[0042] The position control component 2 includes a movable pull rod 21, a first position sensor 23 and a second position sensor 24. The movable pull rod 21 is fixedly connected to the lamp holder assembly 1. The length direction of the movable pull rod 21 is arranged along the lifting direction of the lamp holder assembly 1. The first position sensor 23 and the second position sensor 24 are arranged at intervals along the lifting direction of the lamp holder assembly 1. A baffle 22 is provided at one end of the movable pull rod 21. When the lamp holder assembly 1 is extended to the extreme position, the baffle 22 corresponds to the first position sensor 23. When the lamp holder assembly 1 is retracted to the extreme position, the baffle 22 corresponds to the second position sensor 24. The first position sensor 23 and the second position sensor 24 are both electrically connected to the lifting assembly.

[0043] In one embodiment, the first position sensor 23 and the second position sensor 24 are both laser sensors. When the baffle 22 is close to the laser sensor, it is located directly in front of the emitting end of the laser sensor and when the baffle 22 is not located in front of the emitting end of the laser sensor, the laser sensor outputs different electrical signals. When the lamp head assembly 1 is extended to the extreme position, the baffle 22 corresponds to the first position sensor 23, and the first position sensor 23 sends an electrical signal to the sensor to the driver 31 of the frameless torque motor 3, and the driver 31 controls the motor to stop rotating. When the lamp head assembly 1 is retracted to the extreme position, the baffle 22 corresponds to the second position sensor 24, and the second position sensor 24 sends an electrical signal to the sensor to the driver 31 of the frameless torque motor 3, and the driver 31 controls the motor to stop rotating to prevent overshoot.

[0044] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A retractable anti-collision lamp after power failure, characterized in that: The invention comprises a housing (5), a lifting assembly, a lamp head assembly (1) and a backup power supply assembly (6); the lifting assembly is installed in the housing (5), the lamp head assembly (1) is installed on the output end of the lifting assembly, and the lifting assembly drives the lamp head assembly (1) to extend out of the housing (5) and retract into the housing (5); The backup power supply component (6) is installed in the housing (5), and the backup power supply component (6) comprises an input positive electrode (53), an input negative electrode (51), a power conversion module (55), an energy storage capacitor (54), an output negative electrode (60) and an output positive electrode (59), the input positive electrode (53) and the input negative electrode (51) are electrically connected to an onboard power supply (52), and the output positive electrode (59) and the output negative electrode (60) are electrically connected to a power supply terminal of the lifting component; The input end of the power conversion module (55) is electrically connected to the input positive electrode (53) and the input negative electrode (51); the output end of the power conversion module (55) is electrically connected to the output negative electrode (60) and the output positive electrode (59); the output positive electrode (59) is also directly connected to the input positive electrode (53) through a wire; the output negative electrode (60) is also directly connected to the output negative electrode (60) through a wire; the power conversion module (55) is used to reduce the voltage of the onboard power supply (52) by 1 to 2V and then output it; The energy storage capacitor (54) is connected to the wire connecting the power conversion module (55) and the input positive electrode (53), and the energy storage capacitor (54) is connected to the wire connecting the power conversion module (55) and the output positive electrode (59). One end of the energy storage capacitor (54) is connected to the input positive electrode (53) or the output positive electrode (59), and the other end of the energy storage capacitor (54) is grounded.

2. The retractable anti-collision lamp according to claim 1, characterized in that: The lifting assembly comprises a driving motor, a sleeve (41), a planetary threaded column (42), a lead screw (43) and a limiting structure. The sleeve (41) is electrically connected to the output end of the driving motor. A plurality of planetary threaded columns (42) are provided. The plurality of planetary threaded columns (42) surround the outer circumference of the lead screw (43). The planetary threaded column (42) and the lead screw (43) are threadedly connected and the planetary threaded column (42) and the inner wall of the sleeve (41) are threadedly connected. The limiting structure is installed in the housing (5) and is used to limit the circumferential rotation of the lead screw (43) or the lamp holder assembly (1) around the lead screw (43).

3. The liftable anti-collision lamp that can be retracted after power failure according to claim 2 is characterized in that: The limiting structure comprises a guide convex strip arranged on the outer periphery of the lamp head assembly (1) and a guide groove located on the inner wall of the housing (5); the guide convex strip slides along the guide groove in the length direction of the lead screw (43).

4. The lift-type anti-collision lamp that can be retracted after power failure according to claim 2 is characterized in that: The driving motor is a frameless torque motor (3), and the rotor (32) and sleeve (41) of the frameless torque motor (3) are fixedly connected.

5. The lift-type anti-collision lamp that can be retracted after power failure according to claim 1 is characterized in that: The lift-type anti-collision lamp that can be retracted after power failure also includes a position control component (2), which is installed in the housing (5) and is used to control the lifting component to be powered off when the lamp head is extended or retracted to an extreme position.

6. The lift-type anti-collision lamp that can be retracted after power failure according to claim 5, characterized in that: The position control component (2) comprises a movable pull rod (21), a first position sensor (23) and a second position sensor (24); the movable pull rod (21) is fixedly connected to the lamp holder component (1); the length direction of the movable pull rod (21) is arranged along the lifting direction of the lamp holder component (1); the first position sensor (23) and the second position sensor (24) are arranged at intervals along the lifting direction of the lamp holder component (1); a baffle (22) is provided at one end of the movable pull rod (21); when the lamp holder component (1) is extended to the extreme position, the baffle (22) corresponds to the first position sensor (23); when the lamp holder component (1) is retracted to the extreme position, the baffle (22) corresponds to the second position sensor (24); the first position sensor (23) and the second position sensor (24) are both electrically connected to the lifting component.

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