Monophone
A handset and button technology, which is applied in the field of locomotive communication equipment, can solve problems such as high reliability and maintainability requirements, loose internal connectors, and poor shielding performance
Inactive Publication Date: 2016-11-02
BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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Problems solved by technology
[0003] In practical applications, the handset is frequently used and the use environment is complex, which requires high reliability and maintainability
Existing products often have faults such as failure of buttons due to excessive force and internal connectors loosening in the vibration of the train; in addition, the shielded cables inside the racks of existing products are transferred through two connectors, and the shielding poor performance
Method used
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[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.
[0045] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner ", "outside", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or posit...
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The invention belongs to the locomotive communication equipment technical field and relates to a monophone. The monophone includes a communication handle and a hanging rack assembly; the communication handle is connected with the hanging rack assembly through an external cable; the communication handle comprises a shell; the shell is provided with buttons which are in movable-pressing connection with the shell; a printed circuit board is arranged in the shell; the printed circuit board is provided with touch switches corresponding to the buttons; baffles are fixedly installed between the buttons and the touch switches; retaining holes corresponding to the buttons and the touch switches are formed in the baffles; the inner side surfaces of the buttons are provided with protrusions; the diameter of the buttons is larger than the diameter of the retaining holes; the diameter of the protrusions is smaller than or equal to the diameter of the retaining holes; when the protrusions pass through the retaining holes so as to contact or be disconnected from the touch switches; distances between the inner side surfaces of the buttons and the baffles are larger than or equal to strokes of the touch switches which are triggered by the protrusions; and when pressing forces applied to the buttons are too large, the inner side surfaces of the buttons contact with the baffles, and the baffles will buffer the forces applied to the touch switches, and therefore, the touch switches can be protected.
Description
technical field [0001] The invention relates to the technical field of locomotive communication equipment, in particular to a handset. Background technique [0002] The integrated wireless communication equipment for locomotives is a special communication equipment for railways, and it is a necessary equipment to ensure the safety of trains. According to the traffic regulations, all running locomotives must be equipped with locomotive integrated wireless communication equipment. The integrated wireless communication equipment for locomotives is a comprehensive platform for data and voice transmission between trains and ground. The receiver is an important component of the locomotive integrated wireless communication equipment to realize voice transmission. [0003] In practical applications, the handset is frequently used and the use environment is complex, which requires high reliability and maintainability. Existing products often have faults such as failure of buttons ...
Claims
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Login to View More IPC IPC(8): H04R1/10H04R1/08
CPCH04R1/08H04R1/10
Inventor 田秀臣田秀华熊道权刘治国
Owner BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD