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A keyboard and industrial technology, applied in the field of industrial explosion-proof keyboards, can solve problems such as PCB board short circuit, keyboard damage and failure, gas explosion, etc., to reduce the possibility of explosion, ensure normal heat dissipation, and reduce the effect of impact
Pending Publication Date: 2022-03-22
ERGONG EXPLOSION PROOF TECH CO LTD
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[0003] However, the waterproof effect of the current industrial keyboards is not good. If water enters the interior of the keyboard and the water stays inside the keyboard, a short circuit will occur on the PCB board, resulting in damage to the keyboard and the possibility of causing a gas explosion. In some special industries such as coal mine explosion-proof, medical treatment and military industry, the use effect is not ideal, and the explosion-proof effect is not good.
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describi...
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Abstract
An industrial explosion-proof keyboard disclosed by the present invention comprises an explosion-proof base, the top of the explosion-proof base is provided with a placement groove, the interior of the placement groove is fixedly connected with a keyboard base, the bottom side of the interior of the keyboard base is fixedly connected with a heat conduction column, the top of the heat conduction column is fixedly connected with a PCB, and the top of the keyboard base is provided with a through hole. The keyboard has the advantages that when water flow is sprayed on the surface of the keyboard base and the keycap is pressed, the first sealing gasket and the first limiting ring move downwards along with the keycap, and then the sealing cylinder is matched to prevent the water flow from entering the interior of the keyboard base from the through hole; by arranging the first limiting ring and the water retaining ring, water flow can be prevented from entering the interior of the keyboard base from the top end of the sealing cylinder, so that the device can perform waterproof protection when the keycap is pressed, a PCB (Printed Circuit Board) in the keyboard base is effectively protected, and meanwhile, the possibility of causing explosion is reduced.
Description
technical field [0001] The invention relates to the technical field of keyboards, in particular to an industrial explosion-proof keyboard. Background technique [0002] Industrial keyboards can be divided into membrane keyboards, silicone keyboards, metal keyboards, explosion-proof keyboards, industrial touch keyboards, waterproof keyboards for industrial control, backlit reinforced keyboards, etc. Industrial keyboards are widely used in petrochemical, machinery manufacturing, transportation, electric power, national defense, military industry, aerospace, Internet, agriculture, voice numerical control, automation control, medical treatment, communication, measuring instruments, ATM machines, query terminals and other fields. [0003] However, the waterproof effect of the current industrial keyboards is not good. If water enters the interior of the keyboard and the water stays inside the keyboard, a short circuit will occur on the PCB board, resulting in damage to the keyboar...
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