Infrared clearance radar

Abstract

The utility model relates to the technical field of infrared radars, in particular to an infrared clearance radar which comprises an infrared clearance radar shell and a machine core support arranged in the infrared clearance radar shell, and the machine core support is provided with a detection lens and an infrared detector. An inflation one-way valve used for injecting inert gas into an inner cavity of the infrared clearance radar shell is fixedly arranged on the side wall of the infrared clearance radar shell in a penetrating mode, an air outlet hole is formed in the outer wall of the infrared clearance radar shell, and the infrared clearance radar shell is detachably connected with an air outlet plug used for blocking the air outlet hole. Inert gas is injected into the inner cavity of the infrared headroom radar shell through the inflation one-way valve, and after original gas in the infrared headroom radar shell is exhausted through the gas outlet hole, the gas outlet plug is used for blocking the gas outlet hole, so that the inner cavity of the infrared headroom radar shell is filled with the inert gas; therefore, the possibility that electronic components in the infrared clearance radar shell are affected with damp is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of infrared radar technology, and in particular to 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 existing infrared clearance radar may cause the electronic components inside the infrared clearance radar to get damp in a high humidity environment, reducing the performance and life of the electronic components inside the infrared clearance radar, so further improvement is needed. Utility Model Content

[0004] In order to reduce the possibility of electronic components inside the infrared clearance radar being affected by moisture, the present application provides an infrared clearance radar.

[0005] The infrared clearance radar provided in this application adopts the following technical solution:

[0006] An infrared clearance radar comprises an infrared clearance radar shell and a movement bracket built in the infrared clearance radar shell, the movement bracket is provided with a detection lens and an infrared detector, a side wall of the infrared clearance radar shell is fixedly penetrated with an inflation one-way valve for injecting inert gas into the inner cavity of the infrared clearance radar shell, an outer wall of the infrared clearance radar shell is provided with an air outlet, and the infrared clearance radar shell is detachably connected with an air outlet plug for sealing the air outlet.

[0007] By adopting the above technical scheme, an inflation one-way valve, an air outlet and an air outlet plug are provided, and inert gas is injected into the inner cavity of the infrared clearance radar shell through the inflation one-way valve. After the original gas in the infrared clearance radar shell is discharged through the air outlet, the air outlet plug is used to seal the air outlet, so that the inner cavity of the infrared clearance radar shell is filled with inert gas, thereby effectively reducing the possibility of electronic components in the infrared clearance radar shell being damp.

[0008] Preferably, the inner side wall of the infrared clearance radar shell is detachably connected with a drying cylinder, the cylinder wall of the drying cylinder is provided with air holes, a desiccant is placed in the drying cylinder, the side wall of the infrared clearance radar shell is provided with a desiccant observation port connected to the inner cavity of the drying cylinder, and the infrared clearance radar shell is provided with a transparent observation plate for sealing the desiccant observation port.

[0009] By adopting the above technical solution, a drying cylinder is provided to provide a carrier for placing the desiccant. The desiccant can absorb the moisture of the gas in the infrared clearance radar shell and change color. The staff can check the changes of the desiccant through the transparent observation plate to determine whether the gas in the inner cavity of the infrared clearance radar shell needs to be replaced, which is intuitive and convenient.

[0010] Preferably, the air outlet hole is a countersunk hole, the large hole of the countersunk hole is a threaded hole, and the small hole of the countersunk hole is a smooth hole. The air outlet plug includes a plugging column inserted in the smooth hole and a screw head coaxially fixed to one end of the plugging column, and a polygonal rotation groove is provided at the end of the screw head away from the plugging column.

[0011] By adopting the above technical solution, a special tool is inserted into the polygonal rotating groove to realize the rotation of the screw head, which is convenient for disassembly and assembly of the plug. When the plugging column is inserted into the light hole, the light hole can be sealed.

[0012] Preferably, a wiring head is fixedly pierced through the side wall of the infrared clearance radar housing, a protective seat sleeved on the wiring head is fixedly provided on the outer side wall of the infrared clearance radar housing, a connecting belt is fixedly connected to the protective seat, the connecting belt is flexibly arranged, a protective cover is fixedly connected to the connecting belt, and the protective cover is used to be sleeved on the wiring head.

[0013] By adopting the above technical solution, the wiring head is electrically connected to the plug connector of the connecting wire. When the plug connector of the connecting wire is not plugged into the wiring head, the connecting belt is bent so that the protective cover on the connecting belt is sleeved on the wiring head to cover and protect the wiring head, thereby reducing the possibility of dust or water vapor entering the interior of the wiring head.

[0014] Preferably, the infrared clearance radar shell includes a main shell with an opening on one side and a cover plate detachably connected to the main shell to close the opening. A first sealing gasket is arranged around the open end surface of the main shell. The first sealing gasket is elastically arranged and pressed against the cover plate.

[0015] By adopting the above technical solution, the cover plate and the main shell are separately arranged, which facilitates the installation of electronic components in the infrared clearance radar shell. A first sealing gasket is added between the main shell and the cover plate to improve the sealing between the main shell and the cover plate.

[0016] Preferably, the outer wall of the infrared clearance radar housing is provided with a detection window connected to the inner cavity, the movement bracket includes a window base fixedly connected to the inner wall of the infrared clearance radar housing, a pair of movement side panels respectively fixedly connected to both sides of the window base, and a lens adapter fixedly connected to one end of the movement side panel away from the window base, the detection lens is arranged on the lens adapter, the window base is penetrated by a through hole connected to the detection window, 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.

[0017] By adopting the above technical solution, the detection lens is arranged on the lens adapter, so that the detection lens and the window base can be stably and reliably connected, reducing the possibility of deviation of the detection lens and the detection window, ensuring the clear imaging effect of the thermal imager, and 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, ensuring that the infrared clearance radar can work normally.

[0018] Preferably, the end surface of the window base away from the lens adapter is provided with a second sealing gasket surrounding the detection window and pressed against the inner wall of the infrared clearance radar housing.

[0019] By adopting the above technical solution, a second sealing gasket is added to improve the sealing between the infrared clearance radar housing and the window base.

[0020] 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.

[0021] 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.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. Inject inert gas into the inner cavity of the infrared clearance radar shell through the inflation check valve. After the original gas in the infrared clearance radar shell is discharged through the air outlet, the air outlet plug is used to block the air outlet, so that the inner cavity of the infrared clearance radar shell is filled with inert gas, thereby effectively reducing the possibility of moisture in the electronic components in the infrared clearance radar shell;

[0024] 2. The desiccant in the drying cylinder can absorb the moisture in the gas in the infrared clearance radar shell and change color. The staff can check the changes in the desiccant through the transparent observation plate to determine whether the gas in the inner cavity of the infrared clearance radar shell needs to be replaced, which is intuitive and convenient;

[0025] 3. The detection lens is set on the lens adapter, so that the detection lens and the window base can be stably and reliably connected, reducing the possibility of deviation between the detection lens and the detection window, ensuring the clear imaging effect of the thermal imager. 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, ensuring that the infrared clearance radar can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an infrared clearance radar;

[0027] Figure 2 Schematic diagram of the connection structure between the main shell and the cover plate;

[0028] Figure 3 It is a schematic diagram of the structure of the mounting bracket;

[0029] Figure 4 It is a schematic diagram of the structure of the movement bracket;

[0030] Figure 5 It is a schematic diagram of the structure of the window base;

[0031] Figure 6 It is a schematic diagram of the connection structure between the window base and the anti-drop ring sleeve;

[0032] Figure 7 It is a schematic diagram of the connection structure between the lens adapter and the detection lens.

[0033] In the figure, 1. infrared clearance radar shell; 11. main shell; 111. air outlet; 112. detection window; 12. cover plate; 121. inflation check valve; 122. drying cylinder; 123. desiccant observation port; 124. transparent observation plate; 125. terminal head; 13. first sealing gasket; 14. air outlet plug; 141. plugging column; 142. screw head; 143. polygonal rotation groove; 15. protective seat; 151. connecting belt; 152. protective cover; 16. mounting bracket; 161. avoidance groove; 2. movement bracket; 21. window base; 211. second sealing gasket; 212. positioning groove; 21 3. Through hole; 214. Third sealing gasket; 215. Translucent plate; 216. Heating ring; 217. Anti-slip ring; 22. Movement side panel; 23. Lens adapter; 231. Adapter sleeve; 232. Threaded hole; 233. Top screw; 234. Positioning column; 24. Detector base; 241. Mounting cavity; 242. Shutter; 243. Swing motor; 244. Positioning hole; 3. Detection lens; 4. Infrared detector; 5. Hardware circuit module; 51. Detector printed circuit board; 52. Drive printed circuit board; 53. Signal processing printed circuit board; 54. Power interface printed circuit board; 55. Mounting bolt; 56. Spacer. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-7 This application is described in further detail.

[0035] The present application embodiment discloses an infrared clearance radar, referring to Figure 1 , Figure 2 , including an infrared clearance radar housing 1 and a movement bracket 2 built in the infrared clearance radar housing 1, the infrared clearance radar housing 1 includes a main housing 11 with an opening on one side and a cover plate 12 detachably connected to the main housing 11 by screws to close the opening. A first sealing gasket 13 is embedded around the opening end surface of the main housing 11, the first sealing gasket 13 is elastically arranged, and the first sealing gasket 13 is tightly pressed against the plate surface of the cover plate 12.

[0036] The cover plate 12 is fixedly provided with an inflation check valve 121 for injecting inert gas into the inner cavity of the main shell 11. In this embodiment, nitrogen is injected into the inner cavity of the main shell 11 through the inflation check valve 121. An air outlet hole 111 is provided through the side wall of the main shell 11 away from the cover plate 12. The air outlet hole 111 is a countersunk hole. The large hole of the countersunk hole is a threaded hole 232, and the small hole of the countersunk hole is a light hole. The main shell 11 is detachably connected with an air outlet plug 14 for blocking the air outlet 111. Specifically, the air outlet plug 14 includes a plugging column 141 inserted into the light hole and a screw head 142 coaxially fixed to one end of the plugging column 141. The end of the screw head 142 away from the plugging column 141 is provided with a polygonal rotation groove 143.

[0037] The inner wall of the cover plate 12 is detachably connected to a drying cylinder 122, the cylinder wall of the drying cylinder 122 is provided with air holes, a desiccant is placed in the drying cylinder 122, the outer wall of the cover plate 12 is provided with a desiccant observation port 123 connected to the inner cavity of the drying cylinder 122, and the inner wall of the cover plate 12 is fixedly connected to a transparent observation plate 124 that blocks the desiccant observation port 123, and the transparent observation plate 124 is a glass plate.

[0038] The cover plate 12 is fixedly provided with a wiring head 125. In the present embodiment, two wiring heads 125 are provided. The wiring heads 125 are provided for the plug connector of the connecting wire to realize electrical connection. The outer wall of the cover plate 12 is fixed with a protective seat 15 which is sleeved on the wiring head 125. The protective seat 15 is fixedly connected with a connecting belt 151. The connecting belt 151 is flexibly provided. A protective cover 152 is fixedly connected to the connecting belt 151. When the plug connector of the connecting wire is not plugged into the wiring head 125, the connecting belt 151 is bent so that the protective cover 152 on the connecting belt 151 is sleeved on the wiring head 125, so as to cover and protect the wiring head 125 and reduce the possibility of dust or water vapor entering the interior of the wiring head 125.

[0039] Reference Figure 3 , Figure 4 , Figure 5 The side wall of the main housing 11 away from the cover plate 12 is fixedly connected with a mounting bracket 16 by bolts, and the mounting bracket 16 is provided with an escape groove 161. The outer wall of the main housing 11 away from the cover plate 12 is provided with a detection window 112 connected to the inner cavity, and the detection window 112 is connected to the escape groove 161. The movement bracket 2 includes a window base 21 fixedly connected to the inner wall of the main housing 11 away from the cover plate 12 by screws, a pair of movement side plates 22 respectively fixedly connected to both sides of the window base 21, a lens adapter 23 fixedly connected to one end of the movement side plate 22 away from the window base 21, and a detector base 24 fixedly connected to the side of the lens adapter 23 away from the window base 21 by screws. The end surface of the window base 21 away from the lens adapter 23 is provided with a second sealing gasket 211 surrounding the detection window 112 and pressed against the inner side wall of the main housing 11.

[0040] Reference Figure 6 The end surface of the window base 21 near the lens adapter 23 is provided with a positioning groove 212, and the inner wall of the positioning groove 212 is coaxially penetrated with a through hole 213 connected to the detection window 112. The window base 21 is provided with a light-transmitting plate 215 embedded in the positioning groove 212 to block the through hole 213. The light-transmitting plate 215 is a glass plate. The inner wall of the positioning groove 212 is embedded with a third sealing gasket 214 surrounding the through hole 213, and the light-transmitting plate 215 is tightly pressed against the third sealing gasket 214. The window base 21 is provided with a heating element for heating the light-transmitting plate 215. In this embodiment, the heating element is a heating ring 216 embedded in the positioning groove 212, and the heating ring 216 and the light-transmitting plate 215 are coaxial. The window base 21 is detachably connected to an anti-drop ring sleeve 217 embedded in the positioning groove 212 by screws, and the end surface of the anti-drop ring sleeve 217 is pressed against the end surface of the heating ring sheet 216 away from the light-transmitting plate 215 .

[0041] Reference Figure 6 , Figure 7 A detection lens 3 is arranged between the lens adapter seat 23 and the window base 21, and an adapter sleeve 231 is fixedly penetrated by the lens adapter seat 23, and the adapter sleeve 231 and the through hole 213 are coaxially arranged. The adapter sleeve 231 and the detection lens 3 are threadedly connected. Specifically, the detection lens 3 adopts a fixed-focus athermal lens, and the inner peripheral wall of the adapter sleeve 231 has an internal thread, and the outer peripheral wall of the end of the detection lens 3 has an external thread threadedly connected to the internal thread. Furthermore, the outer peripheral wall of the adapter sleeve 231 is radially provided with a threaded hole 232 connected to the inner cavity, and the outer peripheral wall of the adapter sleeve 231 is threadedly connected with a top screw 233 that is tightly pressed against the outer peripheral wall of the detection lens 3, thereby further limiting the degree of freedom of the detection lens 3.

[0042] A positioning column 234 is protrudingly provided on one side of the lens adapter 23 away from the window base 21, and a positioning hole 244 is provided on the side wall of the detector base 24 for inserting the positioning column 234. A mounting cavity 241 is provided on the side of the detector base 24 close to the lens adapter 23, and the detector base 24 is provided with an infrared detector 4 built into the mounting cavity 241. The infrared detector 4 adopts a vanadium oxide uncooled infrared focal plane detector, and the infrared detector 4 is fixedly installed in the mounting cavity 241 by screws. The detector base 24 is hinged with a shutter 242 located between the infrared detector 4 and the adapter sleeve 231. The detector base 24 is provided with a swing motor 243 for controlling the swing of the shutter 242. When the swing motor 243 drives the shutter 242 to swing to a position directly opposite to the inner hole of the adapter sleeve 231, the shutter 242 blocks the infrared radiation emitted by the detection lens 3. When the swing motor 243 drives the shutter 242 to swing to one side of the adapter sleeve 231, the infrared radiation emitted from the detection lens 3 is focused on the sensitive element of the infrared detector 4.

[0043] Reference Figure 4 A hardware circuit module 5 is provided on the side of the detector base 24 away from the lens adapter 23. The hardware circuit module 5 includes a detector printed board 51 fixedly connected to the side wall of the detector base 24, a drive printed board 52 located on the side of the detector printed board 51 away from the detector base 24, a signal processing printed board 53 located on the side of the drive printed board 52 away from the detector printed board 51, and a power interface printed board 54 located on the side of the signal processing printed board 53 away from the drive printed board 52. The power interface printed board 54 is provided with a mounting bolt 55 that penetrates the signal processing printed board 53 and the drive printed board 52 and is threadedly connected to the detector printed board 51. A spacer 56 that is sleeved on the mounting bolt 55 is provided between the power interface printed board 54, the signal processing printed board 53 and the drive printed board 52, and the two ends of the spacer 56 are respectively abutted between two adjacent printed boards.

[0044] The implementation principle of an infrared clearance radar in an embodiment of the present application is as follows: inert gas is injected into the inner cavity of the infrared clearance radar shell 1 through an inflation one-way valve 121. After the original gas in the infrared clearance radar shell 1 is discharged through the air outlet 111, the air outlet plug 14 is used to seal the air outlet 111, so that the inner cavity of the infrared clearance radar shell 1 is filled with inert gas, thereby effectively reducing the possibility of electronic components in the infrared clearance radar shell 1 being damp. A drying cylinder 122 is provided to provide a carrier for placing the desiccant. The desiccant can absorb the moisture in the gas in the infrared clearance radar shell 1 and change color. The staff can check the changes in the desiccant through the transparent observation plate 124 to determine whether the gas in the inner cavity of the infrared clearance radar shell 1 needs to be replaced, which is intuitive and convenient.

[0045] 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. An infrared clearance radar, characterized in that: The infrared clearance radar comprises an infrared clearance radar housing (1) and a movement bracket (2) built into the infrared clearance radar housing (1); the movement bracket (2) is provided with a detection lens (3) and an infrared detector (4); a gas charging check valve (121) for injecting an inert gas into the inner cavity of the infrared clearance radar housing (1) is fixedly penetrated through the side wall of the infrared clearance radar housing (1); an air outlet hole (111) is opened on the outer wall of the infrared clearance radar housing (1); and an air outlet plug (14) for sealing the air outlet hole (111) is detachably connected to the infrared clearance radar housing (1).

2. The infrared clearance radar according to claim 1, characterized in that: The inner side wall of the infrared clearance radar housing (1) is detachably connected to a drying cylinder (122), the cylinder wall of the drying cylinder (122) is provided with an air vent, a desiccant is placed in the drying cylinder (122), the side wall of the infrared clearance radar housing (1) is provided with a desiccant observation port (123) connected to the inner cavity of the drying cylinder (122), and the infrared clearance radar housing (1) is provided with a transparent observation plate (124) that blocks the desiccant observation port (123).

3. The infrared clearance radar according to claim 1, characterized in that: The air outlet hole (111) is a countersunk hole, the large hole of the countersunk hole is a threaded hole (232), the small hole of the countersunk hole is a light hole, and the air outlet plug (14) comprises a plugging column (141) inserted into the light hole and a screw head (142) coaxially fixed to one end of the plugging column (141), and a polygonal rotation groove (143) is formed at one end of the screw head (142) away from the plugging column (141).

4. The infrared clearance radar according to claim 1, characterized in that: A wiring head (125) is fixedly penetrated through the side wall of the infrared clearance radar housing (1), a protective seat (15) sleeved on the wiring head (125) is fixedly disposed on the outer side wall of the infrared clearance radar housing (1), a connecting belt (151) is fixedly connected to the protective seat (155), the connecting belt (151) is flexibly arranged, a protective cover (152) is fixedly connected to the connecting belt (151), and the protective cover (152) is used to be sleeved on the wiring head (125).

5. The infrared clearance radar according to claim 1, characterized in that: The infrared clearance radar housing (1) comprises a main housing (11) with an opening on one side and a cover plate (12) detachably connected to the main housing (11) to close the opening. A first sealing gasket (13) is arranged around the end surface of the opening of the main housing (11). The first sealing gasket (13) is elastically arranged and is tightly pressed against the cover plate (12).

6. The infrared clearance radar according to claim 1, characterized in that: The outer wall of the infrared clearance radar housing (1) is provided with a detection window (112) connected to the inner cavity. The movement bracket (2) comprises a window base (21) fixedly connected to the inner wall of the infrared clearance radar housing (1), a pair of movement side panels (22) respectively fixedly connected to both sides of the window base (21), and a lens adapter (23) fixedly connected to one end of the movement side panel (22) away from the window base (21). The detection lens (3) is arranged on the lens adapter (23). The window base (21) is provided with a through hole (213) connected to the detection window (112). The window base (21) is provided with a light-transmitting plate (215) for blocking the through hole (213). The window base (21) is provided with a heating element for heating the light-transmitting plate (215).

7. The infrared clearance radar according to claim 6, characterized in that: The end surface of the window base (21) away from the lens adapter (23) is provided with a second sealing gasket (211) surrounding the detection window (112) and pressed against the inner side wall of the infrared clearance radar housing (1).

8. The infrared clearance radar according to claim 6, characterized in that: The window base (21) is provided with a positioning groove (212) on the end surface close to the lens adapter (23); the through hole (213) is provided on the inner wall of the positioning groove (212); the light-transmitting plate (215) is embedded in the positioning groove (212); the heating element is a heating ring plate (216) embedded in the positioning groove (212); the heating ring plate (216) is coaxially abutted against the plate surface of the light-transmitting plate (215); the window base (21) is detachably connected with an anti-slip ring sleeve (217) embedded in the positioning groove (212); the end surface of the anti-slip ring sleeve (217) is pressed against the end surface of the heating ring plate (216) away from the light-transmitting plate (215).

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