Intrinsically safe explosion-proof human body static electricity discharge keyboard and keys
A human body electrostatic, explosion-proof technology, applied in circuits, electrotherapy, electric switches, etc., can solve problems such as static sparks, safety hazards, gasoline vapor deflagration, etc.
Pending Publication Date: 2020-07-03
吴凡
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Problems solved by technology
[0002] The keyboards used in explosive hazardous areas, such as the keyboards of self-service gas stations, are made of metal, and the metal is grounded. When the finger is pressed, the grounding effect is obtained at the same time to release the static electricity of the human body, but the moment the finger triggers the button, static sparks may be generated, which is easy gasoline vapor deflagration
[0003] Computer keyboards used in explosive hazardous areas, because the human body is in a state of constant movement, static electricity will continue to accumulate, bringing safety hazards
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[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0034] figure 1 It is the front view of the keyboard of the present invention, including computer keyboards, self-service gas station keyboards, elevator keyboards, keys, etc. At present, the keys of the self-service gas station keyboards are made of metal and grounded. When pressing the keys with fingers, it can ensure that the human body is grounded and released The human body is static, but the finger may generate static sparks at the moment of touching the button, so it is not safe. At the same time, when the human finger with static electricity touches the metal button, it will also produce an electric shock, causing human discomfort.
[0035] figure 2 It is a schematic diagram of keyboard keys of the present invention. 104 is a button of a traditional keyboard, including a mechanical contact type or a conductive rubber contact type. A conductiv...
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The invention relates to the technical field of human body static electricity discharge elimination, particularly to an intrinsically safe explosion-proof human body static electricity discharge keyboard, which comprises keyboard keys, wherein the surface of each keyboard key is provided with a conductive rubber cavity (102), conductive blocks (101) and (103) are arranged on the symmetrical surfaces of the conductive rubber cavity (102), the conductive block (103) is grounded, when a finger touches the key, human body static electricity pre-discharge is carried out through the conductive rubber cavity, and when the finger presses the key, the conductive rubber cavity (102) is flattened by the finger to enable the conductive block (101) and the conductive block (103) to be in contact, so that the finger is directly grounded to complete human body static electricity complete release. The keyboard has the advantages that no electric spark is generated when the keyboard is used, static electricity of the human body can be continuously released in the using process, and no electric shock feeling is generated to people in the static electricity releasing process of the human body.
Description
technical field [0001] The invention relates to the technical field of human body static discharge elimination, in particular to an intrinsically safe explosion-proof human body static discharge keyboard and keys. Background technique [0002] The keyboards used in explosive and hazardous areas, such as the keyboards of self-service gas stations, are made of metal, and the metal is grounded. Causes gasoline vapor deflagration. [0003] Computer keyboards used in explosive hazardous areas, because the human body is in a state of constant movement, static electricity will continue to accumulate, bringing safety hazards. Contents of the invention [0004] Intrinsic safety originates from the GB3836.4-201 standard. Explosion-proof electrical appliances are divided into explosion-proof type, increased safety type, intrinsically safe type and other types. The characteristic of intrinsically safe electrical equipment is that all circuits are intrinsically safe circuits, that is,...
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Login to View More IPC IPC(8): H01H13/705H01H13/81H01H9/12A61N1/02A61N1/14G06F3/02
CPCA61N1/02A61N1/14G06F3/0219H01H9/12H01H13/705H01H13/81
Inventor 吴凡
Owner 吴凡