Window assembly and camera

Abstract

The utility model provides a window assembly and a camera. The window assembly comprises a first rotating piece, a window, a second rotating piece and a motor. The window is fixed to the first rotating piece so as to rotate along with the first rotating piece. And the second rotating piece drives the first rotating piece to rotate. The motor provides power for rotation of the second rotating part. According to the window assembly, rain, snow and the like are thrown away through centrifugal force generated by rotation of the window, so that the window is cleaned, and the reliability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of video monitoring technology, in particular to a window assembly and a camera. BACKGROUND

[0002] The monitoring system is one of the most widely used systems in the security and protection system. The video monitoring system has strong protection ability due to its intuition, accuracy, timeliness and rich information, and has been widely used in many fields in recent years. The camera is an important part of the video monitoring system, which is used for image acquisition.

[0003] The existing camera usually uses a wiper to remove rain and snow from the window. However, the wiper will be worn out after a long time of use, and the performance of removing rain and snow will gradually decrease. Meanwhile, the wiper will block the picture when it is working. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a window assembly and a camera capable of cleaning the window.

[0005] The present application provides a window assembly for a camera, which comprises a first rotating member, a window, a second rotating member and a motor. The window is located in front of the lens of the camera, and is fixed with the first rotating member to rotate with the first rotating member. The second rotating member rotates with the first rotating member, and the motor provides power for the rotation of the second rotating member.

[0006] Further, the first rotating member comprises a plurality of first teeth, the second rotating member is fixed with the motor shaft of the motor and comprises a plurality of second teeth, and the first teeth are engaged with the second teeth.

[0007] Further, the second rotating member is located outside the radial direction of the first rotating member; and / or,

[0008] The rotation speed of the window is greater than 300 r / min; and / or,

[0009] The diameter of the window is greater than or equal to 10 mm and less than or equal to 200 mm.

[0010] Further, the window assembly comprises a front cover and a bearing. The inner ring of the bearing is fixed with the first rotating member, and the outer ring of the bearing is fixed with the front cover.

[0011] Further, the window assembly comprises a rear cover. The front cover and the motor are fixed with the rear cover. The rear cover is provided with a through hole for the motor shaft to pass through. The rear cover is provided with a positioning column, and the motor is provided with a positioning groove. The positioning column is accommodated in the positioning groove. Further, the rear cover is provided with a first space, and at least part of the motor is located in the first space.

[0012] Further, the rear cover comprises a first wall portion and a second wall portion and a third wall portion extending from the first wall portion, the first wall portion and the second wall portion enclose a second space, the third wall portion is located in the second space, the first wall portion and the third wall portion enclose the first space, the through hole is arranged on the first wall portion, and the second rotating member is located in a first gap slot between the first wall portion and the front cover.

[0013] Further, the front cover comprises a base plate portion provided with a receiving slot, the first rotating member comprises a main body portion and an extension portion extending from the main body portion, the bearing is located in the receiving slot and the outer ring of the bearing is fixed with the base plate portion, the outer diameter of the extension portion is larger than the outer diameter of the main body portion, and a plurality of the first teeth are arranged on the extension portion, and the inner ring of the bearing is fixed with the main body portion.

[0014] Further, the base plate portion comprises a step portion, the outer ring of the bearing is abutted against the step portion, the base plate portion comprises a shielding portion protruding towards the direction of the window, a first end of the shielding portion encloses a window opening corresponding to the window, a second end of the shielding portion arranged opposite to the first end is not protruded from the step portion, the window assembly comprises a first screw fixed with the first rotating member, a first head portion of the first screw is abutted against the inner ring of the bearing, and the first head portion is located in a second gap slot between the shielding portion and the step portion.

[0015] Further, the front cover comprises a fixing column extending from the base plate portion, the fixing column is abutted against the first wall portion, the first wall portion is provided with an assembly hole, and the window assembly comprises a second screw fixed with the fixing column after passing through the assembly hole.

[0016] The embodiment of the present application further provides a camera comprising a lens and the window assembly, and the window is located in front of the lens.

[0017] The window assembly of the embodiment of the present application comprises a first rotating member, a window, a second rotating member and a motor, the motor drives the second rotating member to rotate, the second rotating member drives the first rotating member and the window to rotate, the centrifugal force generated by the rotation of the window can throw away rain and snow, so as to clean the window, compared with the abrasion problem of the wiper after long time use, the reliability is improved, and the problem of blocking the picture during the working of the wiper is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a top view of the window assembly and the lens of the camera assembled according to the embodiment of the present application;

[0019] Figure 2 is Figure 1A sectional view of the window assembly shown;

[0020] Figure 3 is Figure 1 An exploded view of the window assembly shown;

[0021] Figure 4 is Figure 3 A schematic view of the motor and the second rotating member after being fixed;

[0022] Figure 5 is Figure 3 A schematic view of the window and the first rotating member before being assembled;

[0023] Figure 6 is Figure 3 A view of the position relationship between the front cover, the first rotating member, the motor and the second rotating member;

[0024] Figure 7 is Figure 3 A schematic view of the front cover and the bearing before being assembled;

[0025] Figure 8 is Figure 1 Another sectional view of the window assembly shown;

[0026] Figure 9 is Figure 8 An enlarged view of the circle portion at A of the sectional view shown;

[0027] Figure 10 is Figure 3 A schematic view of the back cover shown;

[0028] Figure 11 is Figure 3 A sectional view of the back cover and the motor after being assembled. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments (or “modes of implementation”) of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0030] If the application embodiments involve directional indications or positional relationships (for example, up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, motion condition, etc. between components in a certain posture (as shown in the drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. in the application embodiments are only used for convenience of description, and cannot be understood as indicating or implying relative importance.

[0031] Referring to Figures 1 to 2 The application embodiment provides a window assembly suitable for a camera to protect the lens 1 of the camera. The application embodiment also provides a camera comprising the window assembly. The window assembly comprises a first rotating member 2, a window 3, a second rotating member 4, and a motor 5.

[0032] The window 3 is located in front of the lens 1 of the camera to protect the lens 1. The material of the window 3 includes but is not limited to tempered glass, high-purity synthetic quartz glass, PC (Polycarbonate), and molded aspherical glass.

[0033] The window 3 is fixed with the first rotating member 2 to rotate with the first rotating member 2. The second rotating member 4 rotates with the first rotating member 2. The motor 5 provides power for the rotation of the second rotating member 4.

[0034] The window assembly of the application embodiment can clean the window 3 by centrifugal force generated by the rotation of the window 3 to throw away rain and snow, thereby improving the reliability compared with the wear problem of the wiper after long-term use, and solving the problem of blocking the picture during the operation of the wiper.

[0035] The window 3 can rotate clockwise and counterclockwise.

[0036] Referring to Figures 2 to 6 In some embodiments, the first rotating member 2 comprises a plurality of first teeth 21, the second rotating member 4 is fixed with the motor shaft 51 of the motor 5 and comprises a plurality of second teeth 41, and the first teeth 21 are engaged with the second teeth 41.

[0037] The first rotating member 2 and the second rotating member 4 are engaged through the first teeth 21 and the second teeth 41, which saves space and is conducive to the miniaturization of the window assembly.

[0038] In some embodiments, the first rotating member 2 and the second rotating member 4 are connected by a belt wheel.

[0039] In some embodiments, the second rotating member 4 is located outside the radial direction of the first rotating member 2.

[0040] In some embodiments, the diameter of the second rotating member 4 is smaller than the diameter of the first rotating member 2, so as to reduce the rotating speed of the first rotating member 2. The diameter of the second rotating member 4 can also be not smaller than the diameter of the first rotating member 2.

[0041] In some embodiments, the rotating speed of the window 3 is greater than 300 r / min, so as to better ensure the rain and snow removing effect. The rotating speed of the window 3 can be adjusted according to actual needs, for example, by replacing the first rotating member 2 or the second rotating member 4 or adjusting the rotating speed of the motor 5, so as to adjust the rotating speed of the window 3.

[0042] In some embodiments, the diameter of the window 3 is greater than or equal to 10 mm and less than or equal to 200 mm, and the size of the window 3 can be adjusted according to actual needs.

[0043] In some embodiments, the window 3 and the first rotating member 2 are fixed by gluing or welding or buckling or mechanical sealing or the like. The mechanical sealing form is fixed, for example, by assembling a silica gel member with the outer side of the window 3, then pressing a structure member, and then screwing the structure member and the first rotating member 2.

[0044] In some embodiments, the first rotating member 2 includes a main body part 22 and an extension part 23 extending from the main body part 22. The outer diameter of the extension part 23 is greater than the outer diameter of the main body part 22. A plurality of first teeth 21 are arranged on the extension part 23. The window 3 is fixed with the main body part 22.

[0045] In some embodiments, the main body part 22 is in a hollow cylindrical shape. The lens 1 is located in the space surrounded by the main body part 22.

[0046] In some embodiments, the inner side wall of the main body part 22 is provided with a recessed groove 221, and the window 3 is located in the recessed groove 221, so as to increase the stability of the window 3.

[0047] In some embodiments, the window assembly includes a front cover 6 and a bearing 7. The front cover 6 is provided with a window opening 610 for exposing the window 3. The window opening 610 can be located in front of the window 3 or the window 3 can be exposed from the window opening 610.

[0048] The inner ring of the bearing 7 is fixed to the first rotating member 2, and the outer ring of the bearing 7 is fixed to the front cover 6. While fixing the first rotating member 2, it can rotate, and the smoothness of rotation is increased.

[0049] See Figures 7 to 9 , in some embodiments, the front cover 6 includes a substrate portion 61, and the viewing window 610 is provided on the substrate portion 61. The substrate portion 61 is provided with a receiving groove 611, the bearing 7 is located in the receiving groove 611 and the outer ring is fixed to the substrate portion 61. The inner ring of the bearing 7 is fixed to the main body portion 22. The extending portion 23 is located outside the receiving groove 611, and its outer diameter is larger than the inner diameter of the receiving groove 611.

[0050] In some embodiments, a crimping portion 222 is provided on the outer sidewall of the main body portion 22, and the crimping portion 222 abuts against the inner ring of the bearing 7 to prevent the bearing from moving axially towards the first tooth 21, increasing the stability of the bearing 7.

[0051] In some embodiments, the substrate portion 61 includes a stepped portion 612, and the outer ring of the bearing 7 abuts against the stepped portion 612 to prevent the bearing 7 from moving axially away from the first tooth 21, increasing the stability of the bearing 7.

[0052] In some embodiments, the crimping portion 222 and the stepped portion 612 are located on both sides in the height direction of the bearing 7 to prevent the bearing 7 from moving axially, increasing the stability of the bearing 7.

[0053] In some embodiments, the viewing window assembly includes a first screw 81 fixed to the first rotating member 2. The first head 811 of the first screw 81 abuts against the inner ring of the bearing 7 to fix the bearing 7, increasing the stability of the bearing 7.

[0054] In some embodiments, along the radial direction of the main body portion 22, the first head 811 partially overlaps with the viewing window 3. The wall thickness of the main body portion 22 can be relatively small. At the same time, even if the viewing window 3 detaches from the main body portion 2, the first head 811 can limit the viewing window 3 to prevent it from falling.

[0055] In some embodiments, the substrate portion 61 includes a shielding portion 613 that protrudes toward the window 3. The first end 6131 of the shielding portion 613 defines a window opening 610, and the window opening 610 is correspondingly disposed in front of the window 3. The second end 6132 of the shielding portion 613, which is opposite to the first end 6131, does not protrude beyond the step portion 612. The first head 811 is located in a second gap groove 614 between the shielding portion 613 and the step portion 612. The shielding portion 613 can shield foreign objects to protect the bearing 7; at the same time, it can cover the first screw 81, making the appearance of the window assembly neat.

[0056] The window 3 and the front cover 6 maintain a certain distance to prevent the shielding portion 613 from hindering the rotation of the window 3.

[0057] In some embodiments, the distance between the window 3 and the shielding portion 613 is greater than 0.3 mm.

[0058] In some embodiments, the window assembly includes a screw 82 fixed to the substrate portion 61. The second head 821 of the screw 82 abuts against the outer ring of the bearing 7 to fix the bearing 7, increasing the stability of the bearing 7. The second head 821 maintains a certain distance from the extension portion 23 and / or the second rotating member 4 to prevent the second head 821 from hindering the rotation of the first rotating member 2 and the second rotating member 4.

[0059] In some embodiments, the window assembly includes a rear cover 9, and the front cover 6 and the motor 5 are fixed to the rear cover 9. The rear cover 9 is provided with a through hole 911 for the motor shaft 51 of the motor 5 to pass through.

[0060] In some embodiments, an oil seal can be provided in the receiving groove 611 to increase the waterproof performance of the window assembly.

[0061] Refer Figure 8 And Figures 10 to 11 In some embodiments, the rear cover 9 is provided with a positioning post 912, and the motor 5 is provided with a positioning groove 52. The positioning post 912 is received in the positioning groove 52 to ensure the accuracy of the installation position of the motor 5.

[0062] In other embodiments, the rear cover 9 is provided with a first space 930, and at least a part of the motor 5 is located in the first space 930 to ensure the accuracy of the installation position of the motor 5.

[0063] The positioning post 912 and the first space 930 can be selectively provided or provided simultaneously.

[0064] In some embodiments, the back cover 9 comprises a first wall portion 91 and a second wall portion 92 and a third wall portion 93 extending from the first wall portion 91. The first wall portion 91 and the second wall portion 92 enclose a second space 920. The third wall portion 93 is located in the second space 920. The first wall portion 91 and the third wall portion 93 enclose a first space 930. The through hole 911 is provided on the first wall portion 91. The positioning column 912 is formed extending from the first wall portion 91. The second rotating member 4 is located in a first gap slot 921 between the first wall portion 91 and the front cover 6.

[0065] In some embodiments, the front cover 6 comprises a fixing column 62 extending from the base plate portion 61. The fixing column 62 is in abutment with the first wall portion 91, which is provided with an assembly hole 910. The window assembly comprises a second screw (not shown), which is fixed with the fixing column 62 after passing through the assembly hole 910, facilitating assembly and disassembly of the front cover 6 and the back cover 9. At the same time, the second screw is hiddenly arranged, so that the appearance of the window assembly is neat.

[0066] In some embodiments, the back cover 9 comprises a fourth wall portion 94 extending from the first wall portion 91, which is in abutment with the front cover 6. The fixing column 62 is located on the inner side of the fourth wall portion 94.

[0067] In some embodiments, the back cover 9 comprises a protruding portion 95 protruding from the first wall portion 91, which extends into the space enclosed by the main body portion 22. The lens 1 is located in the space enclosed by the protruding portion 95.

[0068] In some embodiments, a second window can also be provided on the protruding portion 95, which is at a certain distance from the window 3 so as not to affect the rotation of the window 3.

[0069] The fixing column 62 can be provided in plurality, and the plurality of fixing columns 62 are sequentially arranged along the circumferential direction of the front cover 6.

[0070] The lens 1 of the camera can be fixed with the back cover 9. The back cover 9 can also be detachably connected with the shell of the camera. The window assembly of the camera can be replaced with the window assembly of the application, so that the camera has the function of removing rain and snow by the rotation of the window 3, thereby saving cost.

[0071] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the precise structure described in the above embodiments and shown in the accompanying drawings; any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A window assembly for a video camera, comprising: The window assembly comprises: a first rotating member; a window located in front of a lens of the camera, the window being fixed with the first rotating member to rotate with the first rotating member; a second rotating member rotating with the first rotating member; a motor providing power for the rotation of the second rotating member.

2. The window assembly of claim 1, wherein, The first rotating member comprises a plurality of first teeth, and the second rotating member is fixed with a motor shaft of the motor and comprises a plurality of second teeth, the first teeth being engaged with the second teeth.

3. The window assembly of claim 2, wherein, The second rotating member is located radially outside the first rotating member; and / or, The rotation speed of the window is greater than 300 r / min; and / or, The diameter of the window is greater than or equal to 10 mm and less than or equal to 200 mm.

4. The window assembly of claim 2, wherein, The window assembly comprises a front cover and a bearing, the inner ring of the bearing being fixed with the first rotating member, and the outer ring of the bearing being fixed with the front cover.

5. The window assembly of claim 4, wherein, The window assembly comprises a rear cover, the front cover and the motor being fixed with the rear cover, the rear cover being provided with a through hole for the motor shaft to pass through, the rear cover being provided with a positioning column, the motor being provided with a positioning groove, the positioning column being accommodated in the positioning groove; and / or, the rear cover being provided with a first space, at least part of the motor being located in the first space.

6. The window assembly of claim 5, wherein, The rear cover comprises a first wall portion and a second wall portion and a third wall portion extending from the first wall portion, the first wall portion and the second wall portion surrounding a second space, the third wall portion being located in the second space, the first wall portion and the third wall portion surrounding the first space, the through hole being provided on the first wall portion, and the second rotating member being located in a first gap slot between the first wall portion and the front cover.

7. The window assembly of claim 6, wherein, The front cover comprises a base plate portion provided with an accommodation groove, the first rotating member comprises a main body portion and an extension portion extending from the main body portion, the bearing is located in the accommodation groove and its outer ring is fixed with the base plate portion, the outer diameter of the extension portion is greater than that of the main body portion, a plurality of the first teeth are provided on the extension portion, and the inner ring of the bearing is fixed with the main body portion.

8. The window assembly of claim 7, wherein, The base plate portion comprises a step portion, the outer ring of the bearing abutting against the step portion, the base plate portion comprises a shielding portion protruding towards the direction of the window, a first end of the shielding portion surrounding a window opening corresponding to the window, a second end of the shielding portion opposite to the first end not protruding from the step portion, the window assembly comprises a first screw fixed with the first rotating member, a first head portion of the first screw abutting against the inner ring of the bearing, and the first head portion being located in a second gap slot between the shielding portion and the step portion.

9. The window assembly of claim 8, wherein, The front cover comprises a fixing column extending from the base plate portion, the fixing column abutting against the first wall portion, the first wall portion being provided with an assembly hole, and the window assembly comprises a second screw fixed with the fixing column after passing through the assembly hole.

10. A video camera characterized by comprising: The camera comprises a lens and a window assembly according to any one of claims 1 to 9, the window being located in front of the lens.

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