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3results about How to "Avoid ejaculation" patented technology

Airtight protection device for radiation-proof door and window

ActiveCN224729536Ustop the flowavoid entering
The utility model discloses a kind of airtight protective devices for radiation-proof door and window, including window frame;The inside wall of window frame is equipped with frame on one side, the inside of frame is equipped with anti-radiation glass window by hinge structure, the outer ring of anti-radiation glass window is equipped with sealing rubber strip, the inside of sealing rubber strip is equipped with metal shielding sealing sheet;The utility model is used by sealing rubber strip, metal shielding sealing sheet, first magnetic sealing strip and second magnetic sealing strip cooperation, by sealing rubber strip, the contact surface of anti-radiation glass window and frame can be closely adhered, the gap between glass and frame is filled initially, air flow and small particulate matter are prevented from entering, reduce the risk of radiation leakage through gap, by metal shielding sealing sheet, secondary shielding can be carried out to radiation, by first magnetic sealing strip and the second magnetic sealing strip on frame mutually cooperate magnetic force adsorption, metal shielding sealing sheet closely adheres frame, and sealing effect can be further enhanced.
Airtight protection device for radiation-proof door and window
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Owner:HANGZHOU RUIYAN TECH CO LTD

Particulate matter concentration detection module

ActiveCN224436071Uincrease the areaincrease distanceLight beamEngineering
This utility model discloses a particulate matter concentration detection module. A light-blocking plate obstructs the entrance of the reflective area, forming a light trap structure together with the reflective area. Light emitted from the beam channel can only enter the reflective area through the light-transmitting hole. Within the reflective area, it is reflected onto the extinction structure of the extension plate. After multiple reflections by the extinction structure, the light entering the reflective area is consumed, preventing it from escaping through the light-transmitting hole again. The reflective area is located on the housing. With the length of the housing and the detection bracket remaining constant, the area of ​​the reflective area can be increased. The distance from the extinction structure to the reflective surface of the reflective area is increased, resulting in more light being consumed and reducing interference from the reflected light to the detection results of the light receiver.
Particulate matter concentration detection module
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Owner:GUANGDONG CHENGYI TECH CO LTD

Backlit keyboard and its backlight module

ActiveCN115241005BImprove side light leakageavoid ejaculationElectric switchesEngineeringMaterials science
This invention discloses a backlight module suitable for button modules. The button module includes multiple button units and a base plate, with the button units disposed on the base plate. The backlight module includes a lower substrate, multiple light sources, and a shielding structure. The lower substrate is disposed below the base plate, and there is an outer edge gap between the outer edge of the base plate and the lower substrate. The multiple light sources are disposed between the base plate and the lower substrate. The shielding structure is disposed on the outer side of the multiple light sources to prevent light from the multiple light sources from escaping through the outer edge gap. This invention improves the side light leakage phenomenon of the backlight module by setting the shielding structure, which is located on the outer side of the multiple light sources, to prevent light from the multiple light sources from escaping through the outer edge gap between the outer edge of the base plate and the lower substrate.
Backlit keyboard and its backlight module
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Owner:HUAIAN DARFON ELECTRONICS +1