Device and system for protecting connecting terminal
A technology for connecting terminals and connectors, which is applied in the direction of emergency protection circuit devices, contact parts, electrical components, etc., and can solve problems such as exposure of connection terminals, increase in cost, and corrosion of connection terminals
Active Publication Date: 2020-11-20
SHANGHAI CHUANGGONG COMM TECH
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Problems solved by technology
[0004] However, the problem in the prior art is that when the thickness of the electroplating layer is greater than the threshold, the cost will increase, and when the thickness of the electroplating layer is not greater than the threshold, there will be electroplating holes in the electroplating layer, which will cause the connecting terminals to be exposed to the electrolyte environment during use. , causing the connection terminals to be corroded
Method used
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example 1
[0036] Under the conditions of the artificial sweat test, the two groups of terminal devices are wrapped with cotton yarn soaked in artificial sweat, and then placed in a humidity environment of 45°C / (90-95)% for a preset time. The two sets of connecting terminals are made of the same material and electroplating layer, both are 0.15mm brass, and the electroplating layer is 50μ0 nickel plating layer and 15μ5 gold plating layer, and are tested after the connection terminals are plugged and pulled out for a preset number of times.
[0037] It should be noted that the two groups of connection terminals include group A and group B, wherein the terminal equipment of the connection terminals of group A is connected to the protection circuit so that the potential of the connection terminals is lower than the protection voltage corresponding to the material of the connection terminals themselves. Terminal equipment for group B connection terminals has no protective circuit. After the p...
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The invention discloses a device and a system for protecting a connecting terminal. The device comprises a connector, a detection sensor, a control system and display equipment; the detection sensor is arranged in the connector, and is used for detecting the conductivity of the environment where the connecting terminal of the connector is located, and sending the electric conductivity to the control system; the control system is used for judging whether the conductivity is greater than a protection threshold; if the conductivity is greater than the protection threshold value, prompt information is sent to the display equipment, a user is prompted to select whether to switch the protection circuit; and the control system receives selection information issued by a user, if the selection information is to switch the protection circuit, the circuit of the connection terminal is connected with the protection circuit, and the protection circuit is a circuit with the polarity opposite to theelectrode polarity of the circuit of the connection terminal, so that the potential of the connection terminal is lower than the protection voltage of the connection terminal. Therefore, electron migration of the connection terminal is inhibited, the metal oxidation reaction rate is reduced, the connection terminal is prevented from being corroded, and the service life of the connection terminal is prolonged.
Description
technical field [0001] The invention relates to the field of electronic security, in particular to a device and system for protecting connection terminals. Background technique [0002] Connectors are widely used in electronic equipment, for example, USB (Universal Serial Bus, Universal Serial Bus), headphone jack, BTB (Board-to-board Connectors, board-to-board connector) and ZIF (ZeroInsertion Force, zero insertion force connector), etc. figure 1 It exemplarily shows a schematic structural diagram of a connection terminal, figure 1 Figure a in the middle is a schematic diagram of the overall connection terminal. figure 1 Figure b in middle is a schematic diagram of the disassembled connection terminals. Such as figure 1 As shown, the connector includes a connecting terminal 101 , a plastic body 102 and a fixing seat 103 . The material of the connecting terminal includes copper alloy, such as phosphor bronze and brass. In an environment where the connection terminal is...
Claims
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IPC IPC(8): H02H11/00H01R13/03
CPCH02H11/00H01R13/03
Inventor 罗振宇
Owner SHANGHAI CHUANGGONG COMM TECH