一种结构改良的IR-CUT切换器
By employing IR and AR filters arranged vertically and horizontally in the IR-CUT switcher and using a movable crank to drive synchronous movement, the problem of large size in the prior art is solved, and the compactness and synchronization are improved, making it suitable for miniature surveillance lenses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东莞市维斗科技股份有限公司
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing IR-CUT switchers have a large movable switching plate due to the horizontal alignment of the IR and AR filters, resulting in a large overall size of the switcher, which makes it unsuitable for miniature surveillance lenses.
Design an improved IR-CUT switcher with a first and second movable switching plate arranged vertically and spaced apart. IR and AR filters are installed on the plates respectively. A movable crank drives the two drive arms to rotate synchronously, enabling the filters to move in opposite directions, thus shortening the length of the switching plate and reducing the overall volume.
It effectively shortens the length of the movable switching plate, reduces the overall volume, and improves the compactness and synchronization of the structure, making it suitable for miniature surveillance lenses.
Smart Images
Figure CN224519041U_ABST
Abstract
Claims
1. An improved IR-CUT switch, comprising a switch housing (1), the switch housing (1) comprising a switch mounting base (11) and a switch cover plate (12) mounted on the upper end of the switch mounting base (11), a housing cavity (13) is formed between the switch mounting base (11) and the switch cover plate (12), the switch mounting base (11) is provided with a vertically penetrating mounting base light-transmitting hole (111), and the switch cover plate (12) is provided with a vertically penetrating cover plate light-transmitting hole (121) aligned with the mounting base light-transmitting hole (111). The outer shell cavity (13) is fitted with a first movable switching plate (21), a movable rocker (4), and a rocker drive assembly for driving the movable rocker (4) to rotate. The first movable switching plate (21) is equipped with an IR filter (31). The movable rocker (4) is provided with a first drive arm (41) corresponding to the first movable switching plate (21). The end of the first drive arm (41) is connected to the first movable switching plate (21). characterized in that The outer shell cavity (13) is also fitted with a second movable switching plate (22), which is arranged vertically and vertically with the first movable switching plate (21). The second movable switching plate (22) is equipped with an AR filter (32). The movable rocker (4) is provided with a second drive arm (42) corresponding to the second movable switching plate (22). The end of the second drive arm (42) is connected to the second movable switching plate (22). The first drive arm (41) and the second drive arm (42) are arranged radially aligned, and the first drive arm (41), the second drive arm (42), and the movable rocker (4) are an integral structure. When the IR-CUT switcher with the improved structure performs the switching action, the movable rocker (4) drives the first drive arm (41) and the second drive arm (42) to rotate synchronously, and the first movable switching plate (21) and the second movable switching plate (22) move synchronously in opposite directions.
2. The structurally improved IR-CUT changer according to claim 1, characterized in that: The first movable switching plate (21) has a vertical through first elongated hole (211) corresponding to the first drive arm (41). The end of the first drive arm (41) is provided with a first drive shaft (411). The first drive shaft (411) and the first drive arm (41) are an integral structure. The first drive shaft (411) is inserted into the first elongated hole (211) of the first movable switching plate (21).
3. The structurally improved IR-CUT changer according to claim 1, wherein: The second movable switching plate (22) has a vertical through second elongated hole (221) corresponding to the second drive arm (42). The end of the second drive arm (42) is provided with a second drive shaft (421). The second drive shaft (421) and the second drive arm (42) are an integral structure. The second drive shaft (421) is inserted into the second elongated hole (221) of the second movable switching plate (22).
4. The structurally improved IR-CUT changer according to claim 1, wherein: The crank drive assembly includes an engine solenoid valve assembly (5) mounted on the switch mounting base (11), and the movable crank (4) is equipped with a magnet (6) that cooperates with the engine solenoid valve assembly (5). The movable crank (4) and the magnet (6) together form a magnet crank assembly.
5. The structurally improved IR-CUT changer according to claim 1, wherein: The switcher mounting base (11) has two first limiting sidewalls (112) arranged opposite each other and extending along the moving direction of the first movable switching piece (21) on the inner wall of the housing cavity (13). The first movable switching piece (21) is limited between the two first limiting sidewalls (112).
6. The structurally improved IR-CUT changer according to claim 1, wherein: The switcher mounting base (11) has two opposing, spaced-apart second limiting sidewalls (113) on the inner wall of the housing cavity (13) and extending along the moving direction of the second movable switching piece (22). The second movable switching piece (22) is limited between the two second limiting sidewalls (113).
7. The structurally improved IR-CUT changer according to claim 1, wherein: The switch holder (11) is provided with a first flange (114) that contacts the lower surface of the first movable switch piece (21) and a second flange (115) that contacts the lower surface of the second movable switch piece (22).