External heating demisting lens

Abstract

The utility model discloses an external heating demisting lens, which comprises a lens barrel, a processing assembly arranged on the lens barrel, a fixing assembly arranged outside the lens barrel, and a part of the fixing assembly arranged inside the processing assembly. The water mist removing efficiency can be guaranteed, meanwhile, electrical connection can be rapidly carried out, the water mist removing efficiency of the lens can be guaranteed, the lens can be protected, the heating structure can be fixedly placed through the fixing assembly, the lens heating effect can be guaranteed, and the lens can be conveniently and rapidly heated. And when heating demisting treatment is not carried out, placement can be carried out through the placement frame, so that the using effect can be better guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lenses, in particular to an externally heated defogging lens. Background Art

[0002] Optical lenses are essential components in machine vision systems, directly impacting image quality and the implementation and effectiveness of algorithms. Optical lenses can be categorized by focal length as short-focus, medium-focus, and long-focus; by field of view as wide-angle, standard, and telephoto; and by structure as fixed-aperture, fixed-focus lenses.

[0003] For example, a lens with external heating and defogging disclosed in Chinese patent publication number CN217181392U is used to heat the lens to remove water mist inside the lens, thereby avoiding the formation of water mist inside the lens that affects the light transmittance of the lens and causes the lens module to affect the customer's use effect after imaging, thereby improving the imaging performance of the product.

[0004] However, the above device has certain shortcomings in actual use. Although it can easily remove the water mist in the lens when used, the lens barrel is heated during demisting, and then the lens is indirectly heated. Therefore, the water mist on the lens cannot be removed evenly and quickly. Utility Model Content

[0005] In response to the problems in the related art, the present invention proposes an externally heated defogger lens to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] An externally heated defogger lens comprises a lens barrel, a processing assembly is provided on the lens barrel, a fixing assembly is provided on the outside of the lens barrel, part of the fixing assembly is provided inside the processing assembly, the processing assembly comprises a plurality of contact connection blocks, the contact connection blocks are embedded in the interior of the lens barrel, a processing board is provided inside the lens barrel, and a plurality of storage tubes are embedded outside the processing board.

[0008] Furthermore, in order to better ensure the electrical connection effect, a telescopic spring is provided inside the storage tube, an adjusting ball is provided at one end of the telescopic spring, an adjusting protrusion is provided on one side of the adjusting ball, one end of the adjusting protrusion extends from the inside of the storage tube to the outside of the storage tube, and part of the adjusting protrusion is in contact with the contact connection block.

[0009] Furthermore, in order to better ensure the uniformity of lens defogger, the processing component also includes a processing chamber, which is opened in the middle of the processing plate. Multiple placement openings are opened on the processing plate, and filters are arranged in the placement openings. A micro fan is arranged directly below the filter, and the micro fan is arranged inside the processing chamber.

[0010] Furthermore, in order to better ensure the processing effect, multiple temperature sensors are embedded in the bottom end of the processing plate, an insulation layer is provided inside the processing chamber, a first electric heating film is provided on the insulation layer, multiple output holes are opened on the processing plate, and the output holes are connected to the processing chamber, and a controller is provided inside the processing chamber.

[0011] Furthermore, the processing component also includes multiple heat-conducting layers, which are embedded in the inner wall of the lens barrel, lenses are arranged on the heat-conducting layers, second electric heating films are arranged at both ends of the heat-conducting layers, and multiple guide holes are opened on the heat-conducting layers.

[0012] Furthermore, in order to better ensure the fixed installation effect, the fixing assembly includes multiple limit frames, which are symmetrically arranged inside the processing chamber. Multiple adjustment springs are arranged on the inner side of the limit frames, and an adjustment plate is arranged at one end of the adjustment spring.

[0013] Furthermore, one end of the adjustment plate extends from the inside of the processing chamber to the outside of the processing plate, a movable protrusion is provided at one end of the adjustment plate, a plurality of adjustment ports are opened on the processing plate, and the movable protrusion is provided at the adjustment port.

[0014] Furthermore, in order to better adjust the protection effect, telescopic covers are provided on both sides of the movable protrusion, part of the telescopic cover is provided in the adjustment port, and multiple placement racks and connecting lines are provided on the outside of the lens barrel, and one end of the connecting line is connected to the processing board.

[0015] The beneficial effects of the present invention are as follows: by setting up a processing component, when water mist appears on the lens, the water mist can be evenly removed from the lens, and the efficiency of water mist removal can be guaranteed. At the same time, electrical connection can be quickly performed, thereby ensuring the efficiency of water mist removal from the lens and also performing protective treatment on the lens. The heating structure can be fixedly placed by the fixing component, thereby ensuring the heating effect of the lens. The lens can also be placed on a placement rack when no heating and demisting treatment is performed, thereby better ensuring the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of a first working state of an externally heated defogging lens according to an embodiment of the present utility model;

[0018] Figure 2This is a schematic structural diagram of a second working state of an externally heated defogging lens according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic cross-sectional view of an externally heated defogging lens according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the processing component structure of an externally heated defogging lens according to an embodiment of the utility model. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the processing component structure of an externally heated defogging lens according to an embodiment of the utility model. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the processing component structure of an externally heated defogging lens according to an embodiment of the utility model. Figure 3 ;

[0023] Figure 7 This is a schematic diagram of the processing component structure of an externally heated defogging lens according to an embodiment of the utility model. Figure 4 ;

[0024] Figure 8 This is a schematic diagram of the processing component structure of an externally heated defogging lens according to an embodiment of the utility model. Figure 5 ;

[0025] Figure 9 This is a schematic diagram of the processing component structure of an externally heated defogging lens according to an embodiment of the utility model. Figure 6 ;

[0026] Figure 10 This is a schematic diagram of the fixing assembly structure of an externally heated defogging lens according to an embodiment of the utility model. Figure 1 ;

[0027] Figure 11 This is a schematic diagram of the fixing assembly structure of an externally heated defogging lens according to an embodiment of the utility model. Figure 2 .

[0028] Reference numerals:

[0029] 1. Lens barrel; 2. Lens; 3. Processing assembly; 301. Contact connection block; 302. Processing board; 303. Storage tube; 304. Telescopic spring; 305. Adjusting ball; 306. Adjusting protrusion; 307. Filter; 308. Micro fan; 309. First electric heating film; 310. Temperature sensor; 311. Insulation layer; 312. Heat-conducting layer; 313. Second electric heating film; 4. Fixing assembly; 401. Limiting frame; 402. Adjusting spring; 403. Adjusting board; 404. Moving protrusion; 405. Telescopic cover; 406. Placement rack; 407. Connecting line; 5. Processing chamber; 6. Output hole; 7. Controller; 8. Guide hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1 - Figure 11 As shown, an externally heated defogger lens according to an embodiment of the present invention includes a lens barrel 1 connected to a camera (the internal structure of the lens barrel 1 is not shown in detail), a processing component 3 is provided on the lens barrel 1, for defogging the lens 2 and protecting the lens when not in use, a fixing component 4 is provided on the outside of the lens barrel 1 for convenient fixation, and a part of the fixing component 4 is arranged inside the processing component 3.

[0032] like Figure 1 - Figure 11As shown, the processing component 3 includes three contact connection blocks 301, which are made of a metal material with good conductivity, and the contact connection block 301 is electrically connected to the power supply of the camera through the interface of the lens (the lens is an intelligent focus lens, which usually includes a motor to drive the focus ring and may also have a built-in processor to communicate with the camera. These functions require power support. These lenses usually obtain power from the battery of the camera, which is a prior art). The contact connection block 301 is embedded in the interior of the lens barrel 1, and a processing board 302 is provided inside the lens barrel 1. A control switch is provided on the processing board 302, and the control switch is connected to the control The device 7 is electrically connected and is used to control the first electrothermal film 309, the second electrothermal film 313 and the micro fan 308. Three storage tubes 303 are embedded in the periphery of the processing plate 302. A telescopic spring 304 is provided inside the storage tube 303. An adjusting ball 305 is provided at one end of the telescopic spring 304. An adjusting protrusion 306 is provided on one side of the adjusting ball 305. Part of the adjusting protrusion 306 is set as an inclined surface. The inclined surface is set to better make the contact more stable. One end of the adjusting protrusion 306 extends from the inside of the storage tube 303 to the outside of the storage tube 303, and part of the adjusting protrusion 306 is in contact with the contact connection block 301.

[0033] The storage tube 303, telescopic spring 304, adjustment ball 305, and adjustment protrusion 306 are all made of metal materials with good conductivity (the structure is similar to a spring pin), and are electrically connected to the contact connection block 301 through the adjustment protrusion 306;

[0034] The processing assembly 3 also includes a processing chamber 5, which is opened in the middle of the processing plate 302. The processing plate 302 has two placement openings, and a filter 307 is provided in the placement opening. Two micro fans 308 are provided directly below the filter 307. The micro fans 308 are of model JDX20060D24. The micro fans 308 are arranged inside the processing chamber 5. Three temperature sensors 310 are embedded in the bottom end of the processing plate 302. The interior of the processing chamber 5 is provided with a heat insulation layer 311, and a first electric heating film 309 is provided on the heat insulation layer 311. The first electric heating film 309 is set as an FPC electric heating film (existing technology). The heat insulation layer 311 is composed of a vacuum insulation panel, and the heat insulation layer 311 is set as a truncated cone structure. The first electric heating film 309 is adapted to the heat insulation layer 311. A plurality of output holes 6 are opened on the processing plate 302. The cross section of the output hole 6 is a fan-shaped structure, and the output hole 6 is connected to the processing chamber 5. A controller 7 is provided inside the processing chamber 5.

[0035] The processing assembly 3 also includes three heat-conducting layers 312, which are made of a metal material with good thermal conductivity. The heat-conducting layers 312 are embedded in the inner wall of the lens barrel 1. The lens 2 is fixed to the heat-conducting layer 312 by a pressure ring. Second electric heating films 313 are provided at both ends of the heat-conducting layer 312. The second electric heating films 313 are configured as FPC electric heating films (existing technology). The second electric heating films 313 are electrically connected to the camera power supply through a switch (i.e., they are electrically connected when the lens barrel 1 is connected to the camera). A plurality of guide holes 8 are opened on the heat-conducting layer 312, and the cross-section of the guide holes 8 is a U-shaped structure.

[0036] The first electroheating film 309, the second electroheating film 313, the micro fan 308, and the controller 7 are electrically connected to the storage tube 303, that is, the storage tube 303, the telescopic spring 304, the adjusting ball 305, and the adjusting protrusion 306 cooperate with each other to make electrical contact with the contact connection block 301, thereby making electrical connection with the power supply of the camera.

[0037] like Figure 1 - Figure 11 As shown, the fixing assembly 4 includes two limit frames 401 in a U-shaped structure. The limit frames 401 are symmetrically arranged inside the processing chamber 5. Two adjustment springs 402 are arranged on the inner side of the limit frames 401. One end of the adjustment spring 402 is provided with an adjustment plate 403. The end of the adjustment plate 403 can be bonded with a rubber sheet when in use to increase the friction with the inside of the lens barrel 1. The adjustment plate 403 is connected to the limit frame 401 through a slide rail. One end of the adjustment plate 403 extends from the inside of the processing chamber 5 to the processing plate 302. On the outside of the lens barrel 1, one end of the adjustment plate 403 is fixedly provided with a movable protrusion 404, two adjustment ports are provided on the processing plate 302, the movable protrusion 404 is arranged in the adjustment port, and the movable protrusion 404 is slidably connected to the adjustment port, and telescopic covers 405 are provided on both sides of the movable protrusion 404, and part of the telescopic cover 405 is arranged in the adjustment port. Two placement racks 406 and a connecting line 407 are provided on the outside of the lens barrel 1. The connecting line 407 is used to prevent the defogging structure from being lost, and one end of the connecting line 407 is connected to the processing plate 302.

[0038] In summary, with the aid of the above technical solution of the present invention, when it is necessary to defog the lens, the processing plate 302 is placed inside the lens barrel 1, and then the processing plate 302 is fixed inside the lens barrel 1 through the cooperation of the limit frame 401, the adjusting spring 402, the adjusting plate 403, the movable protrusion 404, and the telescopic cover 405. Then, the storage tube 303, the telescopic spring 304, the adjusting ball 305, and the adjusting protrusion 306 cooperate with each other to electrically connect with the contact connection block 301, and then the first electrothermal film 309, the micro fan 308, and the second electrothermal film 313 are started, and then the first electrothermal film 309 generates heat (the heating temperature is lower than 60°C), and then the micro fan 308 generates suction to inhale the external air. During the inhalation process, the inhaled air is filtered by the filter 307, and then mixed with the heat generated by the first electrothermal film 309, and then The hot gas after mixing is transported to the processing chamber 5 through the output hole 6, so that the water lens can be uniformly defogged. During the heating process, the first electric heating film 309 that can be heated by the insulation layer 311 is insulated. It is worth noting that there is an air outlet on the lens barrel 1 to facilitate the discharge of humid air. A sealing plug is provided at the air outlet. During normal use, the air outlet is blocked and opened only when defogging is performed. Then, the high-temperature gas is output to the lenses in different spaces in turn through the guide hole 8, and then the fog on other lenses 2 is processed by cooperating with the second electric heating film 313 and the heat-conducting layer 312, thereby ensuring the defog effect of multiple lenses. When defogger processing is not required, the processing plate 302 is fixed to the placement rack 406 through the cooperation of the limit frame 401, the adjustment spring 402, the adjustment plate 403, the movable protrusion 404, and the telescopic cover 405.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An externally heated defogging lens, comprising a lens barrel (1), characterized in that: A processing assembly (3) is provided on the lens barrel (1), a fixing assembly (4) is provided outside the lens barrel (1), and a portion of the fixing assembly (4) is provided inside the processing assembly (3); The processing assembly (3) comprises a plurality of contact connection blocks (301), wherein the contact connection blocks (301) are embedded in the interior of the lens barrel (1), a processing plate (302) is disposed inside the lens barrel (1), and a plurality of storage tubes (303) are embedded outside the processing plate (302).

2. The externally heated defogging lens according to claim 1, characterized in that: A telescopic spring (304) is provided inside the storage tube (303), an adjusting ball (305) is provided at one end of the telescopic spring (304), an adjusting protrusion (306) is provided on one side of the adjusting ball (305), one end of the adjusting protrusion (306) extends from the inside of the storage tube (303) to the outside of the storage tube (303), and a portion of the adjusting protrusion (306) is in contact with the contact connection block (301).

3. The externally heated defogging lens according to claim 2, characterized in that: The processing assembly (3) further comprises a processing chamber (5), wherein the processing chamber (5) is provided in the middle of the processing plate (302), and a plurality of placement openings are provided on the processing plate (302), wherein a filter screen (307) is provided in each placement opening, and a micro fan (308) is provided directly below the filter screen (307), and the micro fan (308) is provided inside the processing chamber (5).

4. The externally heated defogging lens according to claim 3, characterized in that: A plurality of temperature sensors (310) are embedded in the bottom end of the processing plate (302), a heat-insulating layer (311) is provided inside the processing chamber (5), a first electric heating film (309) is provided on the heat-insulating layer (311), a plurality of output holes (6) are provided on the processing plate (302), and the output holes (6) are connected to the processing chamber (5), and a controller (7) is provided inside the processing chamber (5).

5. The externally heated defogging lens according to claim 1, characterized in that: The processing component (3) further comprises a plurality of heat-conducting layers (312), the heat-conducting layers (312) being embedded in the inner wall of the lens barrel (1), a lens (2) being arranged on the heat-conducting layer (312), a second electric heating film (313) being arranged at both ends of the heat-conducting layer (312), and a plurality of guide holes (8) being opened on the heat-conducting layer (312).

6. The externally heated defogging lens according to claim 4, characterized in that: The fixing assembly (4) includes a plurality of limit frames (401), the limit frames (401) are symmetrically arranged inside the processing chamber (5), a plurality of adjustment springs (402) are arranged on the inner side of the limit frames (401), and an adjustment plate (403) is arranged at one end of the adjustment spring (402).

7. The externally heated defogging lens according to claim 6, characterized in that: One end of the adjustment plate (403) extends from the inside of the processing chamber (5) to the outside of the processing plate (302), and one end of the adjustment plate (403) is provided with a movable protrusion (404). The processing plate (302) is provided with a plurality of adjustment openings, and the movable protrusion (404) is arranged in the adjustment openings.

8. The externally heated defogging lens according to claim 7, characterized in that: Telescopic covers (405) are provided on both sides of the movable protrusion (404), and a portion of the telescopic cover (405) is provided in the adjustment port. A plurality of placement racks (406) and connecting wires (407) are provided outside the lens barrel (1), and one end of the connecting wire (407) is connected to the processing board (302).

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