Pan-tilt lens assembly

Abstract

The utility model discloses a pan-tilt lens assembly, comprising a lens cone, a rear cover, a camera module and a pitch axis motor, the camera module is installed in the lens cone, and a lens of the camera module is correspondingly installed at the front side of the lens cone through a liquid sealant; the rear cover covers the rear side of the lens barrel through sealing gum in an adhesion manner; the pitch axis motor is fixed on the side wall of the lens barrel, a rotating shaft of the pitch axis motor is provided with a wiring groove used for coaxial line wiring, and the wiring groove is sealed in a liquid sealant mode or a sealing plug mode after wiring. According to the utility model, the rear side of the lens barrel is sealed by using the sealing gum, the front side of the lens barrel is sealed by using the liquid sealant, and the wiring groove after wiring is sealed by using the liquid sealant or the sealing plug so as to seal a channel for air to enter, so that when the lens is used in a conventional humid and temperature-changing environment, the sealing gum can be used for sealing the wiring groove. Water mist is not easy to appear in the lens cone, the water mist prevention effect is achieved with low cost, and the lens cone is easy to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to camera equipment technical field especially relates to a cloud platform lens assembly. BACKGROUND

[0002] The existing cloud platform camera product uses in the environment of conventional humidity, temperature change (for example, from the area of snow outside in winter enters the room of heating), because the air of high humidity is easy to enter the lens assembly, the temperature inside and outside the lens assembly is not consistent, the water vapor condenses into the water mist, covers in the lens interior, makes the lens interior appears the situation of water mist, influences the use of cloud platform camera, in the prior art, in order to avoid the situation that the lens interior appears water mist, usually seals the whole lens, fills nitrogen gas or the inert gas in the lens or vacuums the lens interior, thereby isolates the external water vapor, ensures that the lens interior will not have water mist generation, however, the way of filling nitrogen gas and vacuuming is high in cost, and the whole lens sealing is not conducive to the disassembly and maintenance of the lens. SUMMARY

[0003] The utility model solves the technical problem that the lens interior appears the situation of water mist in the conventional use process, and the cloud platform lens assembly is low in cost, convenient to produce and assemble and convenient to repair and maintain.

[0004] In order to solve the above technical problem, the utility model provides a cloud platform lens assembly, including a lens barrel, a back cover, a camera module and a pitch axis motor, the camera module is installed in the lens barrel, the lens of the camera module is correspondingly installed on the front side of the lens barrel through liquid sealant, the back cover is set on the rear side of the lens barrel through sealing back adhesive, the pitch axis motor is fixed on the side wall of the lens barrel, and the shaft of the pitch axis motor is provided with a wire slot for coaxial wire, and the wire slot is sealed by liquid sealant or sealing plug after wiring.

[0005] Further technical solutions are as follows: the camera module further includes a decorative ring, the decorative ring is arranged at the rear end of the lens, the decorative ring is fixed on the lens barrel through structural adhesive, and the lens and the decorative ring are sealed and fixed on the front side of the lens barrel through liquid sealant.

[0006] Further technical solutions are as follows: the inner wall of the decorative ring is provided with a plurality of circle patterns from back to front.

[0007] Further technical solutions are as follows: the camera module includes a lens control board, a lens and a lens, the lens is connected with the lens control board, and both are located in the lens barrel, and the lens is fixed on the front side of the lens barrel through liquid sealant.

[0008] Further, the technical scheme is that the middle part of the side wall of the lens barrel protrudes outward to form a mounting groove, a mounting plate is arranged in the mounting groove, and the tilt shaft motor is connected with at least one locking screw close to the end cover of the lens barrel, the locking screw is locked on the mounting plate along the length direction of the tilt shaft motor after penetrating the end cover, so as to drive the lens module to rotate when the tilt shaft motor works.

[0009] Further, the technical scheme is that the tilt shaft motor comprises a stator assembly and a rotor assembly which can rotate relative to the stator assembly, wherein the rotor assembly comprises a front end cover, a rotating shaft and a rotor magnetic ring, the rotor magnetic ring is fixed in the front end cover, one end of the rotating shaft is connected with the front end cover, the other end is provided with a liquid sealant layer or a sealing plug for sealing the wiring groove, penetrates the stator assembly, and the stator assembly is accommodated in the rotor magnetic ring, so as to drive the rotor magnetic ring and the rotating shaft to rotate, and the locking screw is locked on the lens barrel along the length extension direction of the rotating shaft by penetrating the front end cover and the mounting plate in turn.

[0010] Further, the technical scheme is that the tilt shaft motor further comprises a rear end cover, the front end of the middle part of the rear end cover extends outward to form a connecting part, the stator assembly is sleeved on the connecting part, the rotating shaft penetrates the connecting part, and the rear end cover is fixed on the external holder.

[0011] Further, the technical scheme is that the tilt shaft motor further comprises an induction magnetic ring and a magneto-electric sensor, the induction magnetic ring is accommodated in a magnetic ring seat, the magnetic ring seat is connected on the rotating shaft, and the magneto-electric sensor is arranged on a PCB corresponding to the induction magnetic ring.

[0012] Further, the technical scheme is that the sealing plug is a silica gel plug.

[0013] Further, the technical scheme is that the holder lens assembly further comprises a horizontal rolling shaft motor, an installation piece is arranged in the lens barrel close to the rear cover, the horizontal rolling shaft motor is located in the lens barrel, the horizontal rolling shaft motor comprises a horizontal rolling shaft stator and a horizontal rolling shaft rotor which can rotate relative to the horizontal rolling shaft stator, the horizontal rolling shaft stator is installed on the side of the installation piece away from the rear cover, and the horizontal rolling shaft rotor is connected with the camera module to drive the camera module to rotate.

[0014] The beneficial technical effect of the utility model is: compared with prior art, the utility model pan-tilt lens assembly lens and rear cover are respectively installed on the front side and rear side of the lens barrel through liquid sealant and sealing back glue respectively, and the rotating shaft of the pitch shaft motor fixed on the side wall of the lens barrel is provided with a wire slot for coaxial wire, and the wire slot is sealed by using liquid sealant or sealing plug after wiring, so it is known that the lens on the front side of the lens barrel is sealed by liquid sealant, the rear side of the lens barrel is sealed by using sealing back glue through the rear cover, and the wire slot after wiring is also sealed by using liquid sealant or sealing plug, so as to close the air inlet channel, make the pan-tilt lens assembly inside in a closed state, the water vapor in the air cannot flow freely into the lens barrel, when used in the conventional humid and temperature changing environment, the lens barrel inside is not easy to appear water mist, the waterproof mist effect is achieved at low cost, and it is beneficial to the production and assembly of the pan-tilt lens assembly and the later repair and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of a specific embodiment of the utility model pan-tilt lens assembly.

[0016] Figure 2 It is Figure 1 It is an exploded structure schematic view of the utility model pan-tilt lens assembly.

[0017] Figure 3 It is Figure 1 It is a sectional view schematic view of the utility model pan-tilt lens assembly.

[0018] Figure 4 It is Figure 1 It is an exploded structure schematic view of the pitch shaft motor in the utility model pan-tilt lens assembly.

[0019] Sign significance: 100-pan-tilt lens assembly;11-lens barrel;111-mounting groove;112-mounting plate;13-rear cover;12-camera module;121-lens control board;122-lens;123-lens;124-decorative ring;20-pitch shaft motor;21-stator assembly;211-stator core;212-stator salient pole;22-rotor assembly;221-front end cover;222-rotating shaft;2221-wire slot;223-rotor magnetic ring;224-bearing;23-locking screw;24-rear end cover;241-connection part;25-induction magnetic ring;26-magnetic ring seat;31-sealing plug;32-sealing back glue;40-horizontal roll shaft motor;41-horizontal roll shaft rotor;42-horizontal roll shaft stator;42-connection plate;50-mounting piece. DETAILED DESCRIPTION

[0020] In order to more fully understand the technical content of the utility model, the technical scheme of the utility model is further introduced and explained below in combination with the schematic view, but is not limited thereto.

[0021] Referring to Figures 1 to 4 , Figures 1 to 4 A specific embodiment of the gimbal lens assembly 100 is shown. In the embodiment shown in the drawings, the gimbal lens assembly 100 includes a lens barrel 11, a rear cover 13, a camera module 12, and a pitch shaft motor 20. The camera module 12 is installed in the lens barrel 11. The lens 123 of the camera module 12 is installed on the front side of the lens barrel 11 by liquid sealant. The rear cover 13 is adhered to the rear side of the lens barrel 11 by sealant. The pitch shaft motor 20 is fixed to the side wall of the lens barrel 11. The shaft 222 of the pitch shaft motor 20 is provided with a wire slot 2221 for coaxial wire routing. After wire routing, the wire slot 2221 is sealed by a seal plug 31. Understandably, in some other embodiments, the wire slot 2221 can also be sealed by liquid sealant after wire routing. Preferably, in this embodiment, the seal plug 31 can be a silica gel plug. In this embodiment, the lens 123 on the front side of the lens barrel 11 is sealed by liquid sealant, thereby sealing the front side of the lens barrel 11. The rear side of the lens barrel 11 is sealed by sealant 32 through the rear cover 13. The wire slot 2221 after wire routing is also sealed by the seal plug 31 to close the air inlet channel. The inside of the gimbal lens assembly 100 is in a closed state. The water vapor in the air cannot freely flow into the lens barrel 11. When used in a conventional humid and temperature-changing environment, water mist is less likely to occur inside the lens barrel 11. The waterproof mist effect is achieved at a lower cost. The seal plug 31 is easy to disassemble and does not need to be glued to seal the entire gimbal lens assembly 100. The camera module 12 is sealed while facilitating the production, assembly, and later repair and maintenance of the gimbal lens assembly 100.

[0022] In some embodiments, the camera module 12 includes a lens control board 121, a lens 122, and a lens 123. The lens 122 is connected to the lens control board 121. The lens control board 121 controls the lens 122 to take pictures. The lens 122 and the lens control board 121 are both located in the lens barrel 11. The lens 123 is fixed to the front side of the lens barrel 11 by liquid sealant corresponding to the position of the lens 122.

[0023] Further, as Figure 2As shown, the camera module 12 further comprises a decorative ring 124 arranged at the rear end of the lens 123, which can be fixed in the lens barrel 11 by structural adhesive. The lens 123 can be fixed to the front side of the lens barrel 11 by the decorative ring 124. The lens 123 and the decorative ring 124 are sealed and fixed to the front side of the lens barrel 11 by liquid sealant to further improve the airtightness of the gimbal lens assembly 100. Preferably, the inner wall of the decorative ring 124 is further provided with a plurality of circular patterns from back to front. The circular patterns are not only beautiful but also can eliminate the mirror reflection caused by smooth plane to eliminate the reflection and not affect the light collection of the lens 122.

[0024] Continuing to refer to Figures 2 to 4 In the embodiment shown in the drawings, the middle part of the side wall of the lens barrel 11 is outwardly convex to form a mounting groove 111, and a mounting plate 112 is arranged in the mounting groove 111. The tilt shaft motor 20 is connected to at least one locking screw 23 near the end cover of the lens barrel 11. The locking screw 23 extends along the length direction of the rotation shaft 222 of the tilt shaft motor 20 after penetrating the end cover and is locked to the mounting plate 112 to drive the rotation of the lens barrel 11 when the tilt shaft motor 20 works, thereby driving the rotation of the camera module 12. According to the installation needs, one or more locking screws 23 can be arranged in the utility model. Preferably, as shown in the drawings, four locking screws 23 are arranged in the embodiment to better realize the stable connection of the tilt shaft motor 20 and the lens barrel 11. Figure 4 Based on the above design, the locking screw 23 located in the tilt shaft motor 20 and penetrating the end cover of the tilt shaft motor 20 is used to fix the tilt shaft motor 20 and the lens barrel 11 along the length direction of the rotation shaft 222, which can make the overall outer diameter of the tilt shaft motor 20 smaller and the overall size smaller.

[0025] In some embodiments, the tilt shaft motor 20 comprises a stator assembly 21 and a rotor assembly 22 rotatable relative to the stator assembly 21. The rotor assembly 22 comprises a front end cover 221, a rotation shaft 222 and a rotor magnetic ring 223. The rotor magnetic ring 223 is fixed in the front end cover 221. The rotation shaft 222 has a hollow structure, i.e. a through slot 2221 penetrating the rotation shaft 222. One end of the rotation shaft 222 is connected to the front end cover 221, and the other end is plugged with the sealing plug 31 to seal the wire slot 2221 and penetrate the stator assembly 21. The stator assembly 21 is accommodated in the rotor magnetic ring 223 to drive the rotation of the rotor magnetic ring 223 and the rotation shaft 222. The locking screw 23 is located in the tilt shaft motor 20 and penetrates the front end cover 221 and the mounting plate 112 in sequence along the length extension direction of the rotation shaft 222 to be locked to the lens barrel 11.

[0026] Specifically, the stator assembly 21 comprises a stator core 211, and a plurality of stator salient poles 212 are uniformly distributed on the outer circumferential surface of the stator core 211. Each of the stator salient poles 212 is wound with a coil, and the winding is not shown for clarity. When the coil is energized, the rotation of the rotor magnetic ring 223 is induced, and the rotation of the front end cover 221 and the rotating shaft 222 is driven, thereby driving the lens barrel 11 to rotate, driving the camera module 12 to rotate, and changing the shooting angle of the camera module 12.

[0027] Preferably, the pitch axis motor 20 further comprises a rear end cover 24, and a connecting portion 241 is formed on the front end of the rear end cover 24. The stator assembly 21 is sleeved on the connecting portion 241, and the rotating shaft 222 penetrates the connecting portion 241. The rear end cover 24 is fixed to the external gimbal. In order to make the rotating shaft 222 rotate more smoothly, two bearings 224 are further sleeved on the rotating shaft 222. The two bearings 224 are sequentially sleeved on the rotating shaft 222, so that the rotating shaft 222 is rotatably supported in the connecting portion 241. Understandably, the gimbal can comprise a base and a support arm provided on the base. The rear end cover 24 can be fixed to the upper end of the support arm by adhesive or screw, so as to support the gimbal lens assembly 100.

[0028] In some embodiments, the pitch axis motor 20 further comprises an induction magnetic ring 25 and a magneto-electric sensor. The induction magnetic ring 25 is accommodated in a magnetic ring seat 26, and the magnetic ring seat 26 is connected to the rotating shaft 222. The magneto-electric sensor is arranged on a PCB (not shown in the figure) corresponding to the induction magnetic ring 25, i.e. the PCB can be located on the side of the magnetic ring seat 26 away from the rotating shaft 222. In the embodiment, as shown in Figure 3 The magnetic ring seat 26 is sleeved on the rotating shaft 222, which can be connected to the rotating shaft 222 in an interference fit or a threaded connection. The installation mode of the induction magnetic ring 25 and the magnetic ring seat 26 can also be an interference fit, or the induction magnetic ring 25 can be pasted in the magnetic ring seat 26 by glue. Based on the above design, when the rotating shaft 222 rotates, the induction magnetic ring 25 can be driven to rotate, and the magneto-electric sensor can detect the rotation angle position of the induction magnetic ring 25, so as to determine the rotation angle of the rotor assembly 22.

[0029] Continuing to refer to Figure 2In some embodiments, the gimbal lens assembly 100 can further include a roll shaft motor 40, an installation piece 50 is arranged in the lens barrel 11 close to the rear cover 13, and the roll shaft motor 40 is located in the lens barrel 11. The roll shaft motor 40 includes a roll shaft stator 42 and a roll shaft rotor 41 rotatable relative to the roll shaft stator 42. The roll shaft stator 42 is installed on the side of the installation piece 50 away from the rear cover 13. The roll shaft rotor 41 is connected to the side of the camera module 12 through a connecting plate 43 to drive the camera module 12 to rotate. Based on the above design, the roll shaft motor 40 is built into the lens barrel 11 to form an integrated structure, which can reduce the risk of external air entering and further improve the air tightness of the gimbal lens assembly 100.

[0030] In summary, the gimbal lens assembly of the utility model adopts the silica gel plug with good air tightness to seal the exposed end of the wire slot in the rotating shaft, can seal the air inlet channel, and uses the sealing back glue to seal the rear side of the lens barrel and uses the liquid sealant to seal the front side, so that the entire gimbal lens assembly is in a good air tightness state, the water vapor in the air cannot flow into the lens barrel, and when used in a conventional humid and temperature changing environment, the lens barrel is not easy to appear water mist, the waterproof mist effect is achieved at a low cost, and the gimbal lens assembly is easy to disassemble and seal, without the need to glue seal the entire gimbal lens assembly, which is beneficial to the production and assembly of the gimbal lens assembly and the later repair and maintenance, and the roll shaft motor is built into the lens barrel, which can reduce the connection and further improve the air tightness of the gimbal lens assembly.

[0031] The above preferred embodiments should be regarded as examples of the utility model scheme, and any technical deduction, replacement, improvement and the like similar to or based on the utility model scheme should be regarded as the protection scope of the patent.

Claims

1. A gimbal lens assembly, comprising a lens barrel, a rear cover, a camera module, and a pitch axis motor, wherein the camera module is installed inside the lens barrel, characterized in that, The lens of the camera module is installed on the front side of the lens barrel using liquid sealant; the rear cover is attached to the rear side of the lens barrel using sealing adhesive; the pitch axis motor is fixed to the side wall of the lens barrel, and the shaft of the pitch axis motor has a wiring groove for coaxial cable routing, and the wiring groove is sealed using liquid sealant or a sealing plug after routing.

2. The gimbal lens assembly as described in claim 1, characterized in that, The camera module also includes a decorative ring, which is disposed at the rear end of the lens. The decorative ring is fixed to the lens barrel by structural adhesive, and the lens and the decorative ring are sealed and fixed to the front side of the lens barrel by liquid sealant.

3. The gimbal lens assembly as described in claim 2, characterized in that, The inner wall of the decorative ring is decorated with multiple circular patterns from back to front.

4. The gimbal lens assembly as described in claim 1, characterized in that, The camera module includes a lens control board, a lens, and a lens element. The lens is connected to the lens control board and is located inside the lens barrel. The lens element is fixed to the front side of the lens barrel by liquid sealant, corresponding to the lens.

5. The gimbal lens assembly as described in claim 1, characterized in that, A mounting groove protrudes outward from the middle of the side wall of the lens barrel. A mounting plate is provided in the mounting groove. At least one locking screw is connected to the end cap of the pitch axis motor near the lens barrel. After the locking screw passes through the end cap, it is locked to the mounting plate along the length direction of the central axis of the pitch axis motor so as to drive the camera module to rotate when the pitch axis motor is working.

6. The gimbal lens assembly as described in claim 5, characterized in that, The pitch axis motor includes a stator assembly and a rotor assembly that can rotate relative to the stator assembly. The rotor assembly includes a front end cover, a rotating shaft, and a rotor magnetic ring. The rotor magnetic ring is fixed inside the front end cover. One end of the rotating shaft is connected to the front end cover, and the other end is provided with a liquid sealant layer or sealing plug for sealing the wiring groove and passes through the stator assembly. The stator assembly is housed inside the rotor magnetic ring to drive the rotor magnetic ring and the rotating shaft to rotate. The locking screw extends along the length of the rotating shaft and passes through the front end cover and the mounting plate in sequence to lock onto the lens barrel.

7. The gimbal lens assembly as described in claim 6, characterized in that, The pitch axis motor also includes a rear end cover, the front end of which extends outward to form a connecting part. The stator assembly is sleeved on the connecting part, the rotating shaft passes through the connecting part, and the rear end cover is fixed to an external gimbal.

8. The gimbal lens assembly as described in claim 6, characterized in that, The pitch axis motor also includes an induction magnetic ring and a magnetoelectric sensor. The induction magnetic ring is housed in a magnetic ring seat, which is connected to the rotating shaft. The magnetoelectric sensor is mounted on a PCB board corresponding to the induction magnetic ring.

9. The gimbal lens assembly as described in claim 6, characterized in that, The sealing plug is a silicone plug.

10. The gimbal lens assembly as described in claim 1, characterized in that, The gimbal lens assembly also includes a roll axis motor. A mounting component is provided inside the lens barrel near the rear cover. The roll axis motor is located inside the lens barrel and includes a roll axis stator and a roll axis rotor that can rotate relative to the roll axis stator. The roll axis stator is mounted on the side of the mounting component away from the rear cover. The roll axis rotor is connected to the camera module to drive the camera module to rotate.

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