Movement structure for infrared clearance radar

Abstract

The utility model relates to the technical field of infrared radars, in particular to a movement structure for an infrared clearance radar, which comprises a window base, a pair of movement side plates fixedly connected to two sides of the window base respectively, a lens adapter fixedly connected to one end, far away from the window base, of each movement side plate, and a detector base fixedly connected to the lens adapter. A detection lens is arranged between the lens adapter and the window base, the detector base is provided with an infrared detector, the window base is used for being installed on the inner wall of an infrared clearance radar shell, a through hole coaxially communicated with a detection window on the infrared clearance radar shell is formed in the window base in a penetrating mode, and an adapter sleeve is fixedly arranged on the lens adapter in a penetrating mode; and the reducing sleeve is coaxial with the through hole and is in threaded connection with one end of the detection lens. According to the invention, the installation convenience of the detection lens is improved.

Description

Technical Field

[0001] The present application relates to the field of infrared radar technology, and in particular to a core structure for an infrared clearance radar. Background Art

[0002] Infrared clearance radar has a wide range of applications in many fields, especially in the wind power industry. Infrared clearance radar can monitor the clearance distance between the blades and the tower of a wind turbine in real time to ensure that the blades do not collide with the tower during operation, thus avoiding tower sweeping accidents.

[0003] At present, the infrared clearance radar includes an infrared clearance radar shell and a movement bracket built into the infrared clearance radar shell. The movement bracket is provided with a detection lens and an infrared detector. The infrared clearance radar shell has a detection window. During the installation of the detection lens, it is necessary to repeatedly adjust the installation position of the detection lens to ensure that the detection port of the detection lens and the detection window are coaxial, which is rather troublesome and thus needs further improvement. Utility Model Content

[0004] In order to improve the installation convenience of the detection lens, the present application provides a movement structure for an infrared clearance radar.

[0005] The present application provides an infrared clearance radar core structure using the following technical solutions:

[0006] A movement structure for an infrared clearance radar comprises a window base, a pair of movement side plates respectively fixedly connected to both sides of the window base, a lens adapter fixedly connected to one end of the movement side plate away from the window base, and a detector base fixedly connected to the lens adapter, a detection lens is arranged between the lens adapter and the window base, an infrared detector is arranged on the detector base, the window base is used for being mounted on the inner wall of an infrared clearance radar housing, a through hole is penetrated through the window base and is coaxially connected to the detection window on the infrared clearance radar housing, an adapter sleeve is fixedly penetrated through the lens adapter, the adapter sleeve is coaxial with the through hole, and one end of the adapter sleeve and the detection lens are threadedly connected.

[0007] By adopting the above technical solution, the detection lens is directly screwed to the adapter sleeve, and the infrared detector is installed on the detector base, so as to fix the infrared detector, the detection lens and the movement bracket. Then, the window base is directly installed on the inner wall of the infrared clearance radar shell, which improves the installation convenience of the detection lens, ensures that the detection port of the detection lens and the detection window are coaxial, and that the focal plane of the infrared detector and the imaging plane of the detection lens are perfectly overlapped, thereby improving the clear imaging effect of the subsequent conversion output of the external infrared detector.

[0008] Preferably, the inner peripheral wall of the adapter sleeve has an internal thread, and the outer peripheral wall of the end of the detection lens has an external thread threadedly connected to the internal thread.

[0009] By adopting the above technical solution, the feeding amount of the detection lens is adjusted by rotating the detection lens, thereby adjusting the distance between the detection lens and the infrared detector.

[0010] Preferably, a threaded hole connected to the inner cavity is radially opened on the outer peripheral wall of the adapter sleeve, and a top screw that is tightly pressed against the outer peripheral wall of the detection lens is threadedly connected to the outer peripheral wall of the adapter sleeve.

[0011] By adopting the above technical solution, after the detection lens is threadedly connected to the adapter sleeve, the top screw is tightened so that the end of the top screw is pressed against the outer peripheral wall of the detection lens, thereby limiting the rotation of the detection lens.

[0012] Preferably, the end surface of the window base away from the lens adapter is provided with a first sealing gasket surrounding the detection window and pressed against the inner wall of the infrared clearance radar housing.

[0013] By adopting the above technical solution, a first sealing gasket is additionally provided to improve the sealing between the infrared clearance radar housing and the window base.

[0014] Preferably, the window base is provided with a light-transmitting plate for sealing the through hole, and the window base is provided with a heating element for heating the light-transmitting plate.

[0015] By adopting the above technical solution, the window base is provided with a heating element for heating the light-transmitting plate, which can reduce the possibility of frost on the light-transmitting plate in a low temperature environment and ensure that the infrared clearance radar can work normally.

[0016] Preferably, a positioning groove is provided on the end face of the window base close to the lens adapter, a through hole is provided on the inner wall of the positioning groove, the light-transmitting plate is embedded in the positioning groove, the heating element is a heating ring embedded in the positioning groove, the heating ring is coaxially abutted against the plate surface of the light-transmitting plate, and the window base is detachably connected with an anti-slip ring sleeve embedded in the positioning groove, and the end face of the anti-slip ring sleeve is pressed against the end face of the heating ring away from the light-transmitting plate.

[0017] By adopting the above technical solution, the light-transmitting plate is first placed in the positioning groove, then the heating ring is placed in the positioning groove, and finally the anti-slip ring is assembled in the positioning groove, so that the heating ring is pressed against the light-transmitting plate, thereby effectively preventing the heating ring from detaching from the light-transmitting plate.

[0018] Preferably, a second sealing gasket surrounding the through hole is embedded in the inner wall of the positioning groove, and the light-transmitting plate is pressed against the second sealing gasket.

[0019] By adopting the above technical solution, a second sealing gasket is added between the positioning groove and the light-transmitting plate to improve the sealing between the light-transmitting plate and the window base.

[0020] Preferably, a positioning column is protrudingly provided on one side of the lens adapter away from the window base, and a positioning hole for inserting the positioning column is opened on the side wall of the detector base.

[0021] By adopting the above technical solution, positioning columns and positioning holes are added to achieve the positioning installation of the detector base and the lens adapter, thereby improving the installation efficiency.

[0022] Preferably, a mounting cavity for mounting the infrared detector is provided on one side of the detector base close to the lens adapter, a shutter is hingedly connected to the detector base between the infrared detector and the adapter sleeve, and a swing motor is provided on the detector base to control the swing of the shutter.

[0023] By adopting the above technical solution, when the swing motor drives the shutter to swing to a position directly opposite the inner hole of the adapter sleeve, the shutter blocks the infrared radiation emitted by the detection lens; when the swing motor drives the shutter to swing to one side of the adapter sleeve, the infrared radiation emitted from the detection lens is focused on the sensitive element of the infrared detector.

[0024] Preferably, a hardware circuit module is provided on the side of the detector base away from the lens adapter, and the hardware circuit module includes a detector printed board fixedly connected to the side wall of the detector base, a drive printed board located on the side of the detector printed board away from the detector base, a signal processing printed board located on the side of the drive printed board away from the detector printed board, and a power interface printed board located on the side of the signal processing printed board away from the drive printed board.

[0025] By adopting the above technical solution, the detector printed board, the drive printed board, the signal processing printed board and the power interface printed board are integrated and fixed to the detector base.

[0026] In summary, the utility model has the following beneficial effects:

[0027] 1. Directly screw the detection lens to the adapter sleeve, and install the infrared detector on the detector base to fix the infrared detector, detection lens and movement bracket. Then directly install the window base on the inner wall of the infrared clearance radar shell to improve the installation convenience of the detection lens, and ensure that the detection port of the detection lens and the detection window are coaxial and the focal plane of the infrared detector perfectly coincides with the imaging plane of the detection lens, so as to improve the clear imaging effect of the subsequent conversion output of the external infrared detector;

[0028] 2. After the detection lens is threadedly connected to the adapter sleeve, tighten the top screw so that the end of the top screw is pressed against the outer wall of the detection lens to limit the rotation of the detection lens;

[0029] 3. The window base is provided with a heating element for heating the light-transmitting plate, which can reduce the possibility of frost on the light-transmitting plate in a low temperature environment and ensure that the infrared clearance radar can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a core structure for an infrared clearance radar in Example 1;

[0031] Figure 2 is a schematic structural diagram of the window base in Example 1;

[0032] Figure 3 is a schematic diagram of the connection structure between the window base and the anti-drop ring sleeve in Example 1;

[0033] Figure 4 Embodiment 1 is a schematic diagram of the connection structure between the lens adapter and the detection lens;

[0034] Figure 5 It is a schematic diagram of the connection structure between the top screw and the detection lens in Example 2.

[0035] In the figure, 1. window base; 11. first sealing gasket; 12. positioning groove; 13. through hole; 14. second sealing gasket; 15. light-transmitting plate; 16. heating ring; 17. anti-drop ring sleeve; 18. positioning ring sleeve; 2. movement side plate; 3. lens adapter; 31. adapter sleeve; 32. threaded hole; 33. top screw; 34. positioning column; 35. protective pad; 4. detector base; 41. mounting cavity; 42. shutter; 43. swing motor; 44. positioning hole; 5. detection lens; 6. infrared detector; 7. hardware circuit module; 71. detector printed board; 72. drive printed board; 73. signal processing printed board; 74. power interface printed board; 75. mounting bolt; 76. spacer. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] Embodiment 1:

[0038] The present application embodiment discloses a core structure for an infrared clearance radar, referring to Figure 1 , Figure 2 , comprising a window base 1, a pair of movement side panels 2 respectively fixedly connected to both sides of the window base 1 by screws, a lens adapter 3 fixedly connected to one end of the movement side panel 2 away from the window base 1 by screws, and a detector base 4 fixedly connected to the lens adapter 3 by screws. The window base 1 is fixedly installed on the inner wall of one side of the infrared clearance radar housing with a detection window by screws. The end surface of the window base 1 away from the lens adapter 3 is embedded with a first sealing gasket 11 surrounding the detection window and pressed against the inner wall of the clearance radar housing to improve the sealing between the window base 1 and the inner wall of the clearance radar housing.

[0039] Reference Figure 2 , Figure 3 , the end surface of the window base 1 close to the lens adapter 3 is provided with a positioning groove 12, and the window base 1 is provided with a positioning ring sleeve 18 fixedly inserted in the positioning groove 12, the end surface of the positioning ring sleeve 18 protrudes from the end surface of the window base 1 away from the lens adapter 3, and the positioning ring sleeve 18 is positioned and inserted in the detection window, and the inner hole of the positioning ring sleeve 18 forms a through hole 13 connected to the detection window. The window base 1 is provided with a light-transmitting plate 15 embedded in the positioning groove 12 to block the through hole 13, and the light-transmitting plate 15 is a glass plate. The inner wall of the positioning groove 12 is embedded with a second sealing gasket 14 surrounding the through hole 13, and the light-transmitting plate 15 is tightly pressed against the second sealing gasket 14. The window base 1 is provided with a heating element for heating the light-transmitting plate 15. In this embodiment, the heating element is a heating ring sheet 16 embedded in the positioning groove 12, and the heating ring sheet 16 and the light-transmitting plate 15 are coaxial. The window base 1 is detachably connected to an anti-drop ring sleeve 17 embedded in the positioning groove 12 by screws, and the end surface of the anti-drop ring sleeve 17 is pressed against the end surface of the heating ring sheet 16 away from the light-transmitting plate 15 .

[0040] Reference Figure 3 , Figure 4 A detection lens 5 is arranged between the lens adapter seat 3 and the window base 1, and an adapter sleeve 31 is fixedly penetrated by the lens adapter seat 3, and the adapter sleeve 31 and the through hole 13 are coaxially arranged. The adapter sleeve 31 and the detection lens 5 are threadedly connected. Specifically, the inner peripheral wall of the adapter sleeve 31 has an internal thread, and the outer peripheral wall of the end of the detection lens 5 has an external thread threadedly connected to the internal thread, and the detection lens 5 adopts a fixed-focus athermal lens. Furthermore, the outer peripheral wall of the adapter sleeve 31 is radially provided with a threaded hole 32 connected to the inner cavity, and the outer peripheral wall of the adapter sleeve 31 is threadedly connected with a top screw 33 that is tightly pressed against the outer peripheral wall of the detection lens 5, thereby further limiting the degree of freedom of the detection lens 5.

[0041] A positioning column 34 is protrudingly provided on one side of the lens adapter 3 away from the window base 1, and a positioning hole 44 is provided on the side wall of the detector base 4 for inserting the positioning column 34. A mounting cavity 41 is provided on the side of the detector base 4 close to the lens adapter 3, and the detector base 4 is provided with an infrared detector 6 built into the mounting cavity 41. The infrared detector 6 adopts a vanadium oxide uncooled infrared focal plane detector, and the infrared detector 6 is fixedly installed in the mounting cavity 41 by screws. The detector base 4 is hinged with a shutter 42 located between the infrared detector 6 and the adapter sleeve 31, and the detector base 4 is provided with a swing motor 43 for controlling the swing of the shutter 42. When the swing motor 43 drives the shutter 42 to swing to a position facing the inner hole of the adapter sleeve 31, the shutter 42 blocks the infrared radiation emitted by the detection lens 5. When the swing motor 43 drives the shutter 42 to swing to one side of the adapter sleeve 31, the infrared radiation emitted from the detection lens 5 is focused on the sensitive element of the infrared detector 6.

[0042] Reference Figure 1 A hardware circuit module 7 is provided on the side of the detector base 4 away from the lens adapter 3. The hardware circuit module 7 includes a detector printed board 71 fixedly connected to the side wall of the detector base 4, a drive printed board 72 located on the side of the detector printed board 71 away from the detector base 4, a signal processing printed board 73 located on the side of the drive printed board 72 away from the detector printed board 71, and a power interface printed board 74 located on the side of the signal processing printed board 73 away from the drive printed board 72. The power interface printed board 74 is provided with a mounting bolt 75 that penetrates the signal processing printed board 73 and the drive printed board 72 and is threadedly connected to the detector printed board 71. A spacer 76 that is sleeved on the mounting bolt 75 is provided between the power interface printed board 74, the signal processing printed board 73 and the drive printed board 72, and the two ends of the spacer 76 are respectively abutted between two adjacent printed boards.

[0043] The implementation principle of the movement structure for an infrared clearance radar in an embodiment of the present application is as follows: directly screw the detection lens 5 onto the adapter sleeve 31, and tighten the top screw 33 so that the end of the top screw 33 is pressed against the outer wall of the detection lens 5 to restrict the rotation of the detection lens 5, and the infrared detector 6 is installed on the detector base 4 to fix the infrared detector 6, the detection lens 5 and the movement bracket, and then the window base 1 is directly installed on the inner wall of the infrared clearance radar shell to improve the installation convenience of the detection lens 5, and ensure that the detection port and the detection window of the detection lens 5 are coaxial and the focal plane of the infrared detector 6 and the imaging plane of the detection lens 5 are perfectly overlapped, thereby improving the clear imaging effect of the subsequent conversion output of the external infrared detector.

[0044] Embodiment 2:

[0045] The difference from Example 1 is that, referring to Figure 5 The lower end of the top screw 33 is fixedly connected with a protective pad 35, which is a rubber pad. The protective pad 35 is pressed against the outer peripheral wall of the detection lens 5 to reduce the possibility of rigid contact between the top screw 33 and the detection lens 5, thereby reducing the possibility of forming a concave mark on the outer peripheral wall of the detection lens 5.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A core structure for an infrared clearance radar, characterized in that: The invention comprises a window base (1), a pair of movement side plates (2) respectively fixedly connected to both sides of the window base (1), a lens adapter (3) fixedly connected to one end of the movement side plate (2) away from the window base (1), and a detector base (4) fixedly connected to the lens adapter (3), a detection lens (5) is arranged between the lens adapter (3) and the window base (1), and the detector base (4) is provided with an infrared detector (6). The window base (1) is used to be installed on the inner wall of an infrared clearance radar housing, and the window base (1) is penetrated by a through hole (13) coaxially connected to a detection window on the infrared clearance radar housing. The lens adapter (3) is fixedly penetrated by an adapter sleeve (31), the adapter sleeve (31) and the through hole (13) are coaxial, and one end of the adapter sleeve (31) and the detection lens (5) are threadedly connected.

2. The core structure for infrared clearance radar according to claim 1, characterized in that: The inner peripheral wall of the adapter sleeve (31) has an internal thread, and the outer peripheral wall of the end of the detection lens (5) has an external thread threadedly connected to the internal thread.

3. The core structure for infrared clearance radar according to claim 2, characterized in that: The outer peripheral wall of the adapter sleeve (31) is radially provided with a threaded hole (32) connected to the inner cavity, and the outer peripheral wall of the adapter sleeve (31) is threadedly connected to a top screw (33) that is tightly pressed against the outer peripheral wall of the detection lens (5).

4. The core structure for infrared clearance radar according to claim 1, characterized in that: The end surface of the window base (1) away from the lens adapter (3) is provided with a first sealing gasket (11) surrounding the detection window and pressed against the inner side wall of the infrared clearance radar housing.

5. The core structure for infrared clearance radar according to claim 1, characterized in that: The window base (1) is provided with a light-transmitting plate (15) for sealing the through hole (13), and the window base (1) is provided with a heating element for heating the light-transmitting plate (15).

6. The core structure for infrared clearance radar according to claim 5, characterized in that: The window base (1) is provided with a positioning groove (12) on the end surface close to the lens adapter (3), and a through hole (13) is provided on the inner wall of the positioning groove (12). The light-transmitting plate (15) is embedded in the positioning groove (12). The heating element is a heating ring plate (16) embedded in the positioning groove (12), and the heating ring plate (16) is coaxially abutted against the plate surface of the light-transmitting plate (15). The window base (1) is detachably connected with an anti-slip ring sleeve (17) embedded in the positioning groove (12), and the end surface of the anti-slip ring sleeve (17) is tightly abutted against the end surface of the heating ring plate (16) away from the light-transmitting plate (15).

7. The core structure for infrared clearance radar according to claim 6, characterized in that: A second sealing gasket (14) surrounding the through hole (13) is embedded in the inner wall of the positioning groove (12), and the light-transmitting plate (15) is pressed against the second sealing gasket (14).

8. The core structure for infrared clearance radar according to claim 1, characterized in that: A positioning column (34) is protruding from one side of the lens adapter (3) away from the window base (1), and a positioning hole (44) for inserting the positioning column (34) is provided on the side wall of the detector base (4).

9. The core structure for infrared clearance radar according to claim 1, characterized in that: A mounting cavity (41) for mounting the infrared detector (6) is provided on a side of the detector base (4) close to the lens adapter (3); a shutter (42) is hingedly connected to the detector base (4) and is located between the infrared detector (6) and the adapter sleeve (31); and a swing motor (43) is provided on the detector base (4) for controlling the swing of the shutter (42).

10. The core structure for infrared clearance radar according to claim 1, characterized in that: A hardware circuit module (7) is provided on a side of the detector base (4) away from the lens adapter (3), the hardware circuit module (7) comprising a detector printed board (71) fixedly connected to a side wall of the detector base (4), a drive printed board (72) located on a side of the detector printed board (71) away from the detector base (4), a signal processing printed board (73) located on a side of the drive printed board (72) away from the detector printed board (71), and a power interface printed board (74) located on a side of the signal processing printed board (73) away from the drive printed board (72).

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