Signal surge protective device
A surge protector and signal technology, which is applied in the field of signal surge protectors, can solve problems such as hidden dangers in circuit safety, and achieve the effects of low manufacturing cost, convenient processing, and compact structure
Active Publication Date: 2013-08-21
上海优泰欧申智能科技有限公司
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Problems solved by technology
However, this utility model patent only has the function of indicating aging, but not the function of thermal tripping, that is, when the signal SPD is aging, the aging discharge circuit in it will continue to work, so that the subsequent entire circuit protected by the SPD Hidden dangers to the safety of
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[0018] Preferred embodiments of the present invention will be described in detail below in conjunction with the implementation of the accompanying drawings:
[0019] like figure 2 As shown, the present invention is a signal surge protector, which is composed of a circuit board 1 with a discharge circuit, a casing 2, a circuit board mounting frame 3 and pins 4. Wherein the circuit board 1 with the discharge circuit is mounted on the circuit board mounting frame 3, and the casing 2 is set outside the circuit board mounting frame 3, and an observation port 21 is opened on the top of the casing 2, in which the signal surge protection Before the device trips, the color of the moving indicator board 53 can be observed from the viewing port; after the tripping, the color of the moving indicating board mounting frame 51 can be observed from the viewing port. Both the shell 2 and the circuit board mounting frame are made of high-temperature-resistant flame-retardant plastic, and the ...
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The invention relates to a signal surge protective device, in particular to a signal surge protective device with an aging indication and thermal release device. The signal surge protective device consists of a circuit board with a discharging circuit, a case, a circuit board installing frame, an insertion pin and a thermal release indication mechanism, wherein the thermal release indication mechanism is connected in series in the discharging circuit, a transient voltage suppressor T is used as a part of the thermal release indication mechanism, one pin of the transient voltage suppressor is welded on the circuit board with the discharging circuit, the other pin is connected to the circuit board with the discharging circuit sequentially via a metal outer sleeve, a moving indicating board and a soft lead, and the moving indicating board is positioned in different positions before release and after release under the effect of a tensioning spring. Because the moving indication board and a moving indication board installing frame have different colors, the color change can be seen through an observing opening to realize the goal of the indication release. The invention has the advantage of simple structure and is convenient to process, and the aging release and the release indication can be effectively carried out.
Description
technical field [0001] The invention relates to a signal surge protector, in particular to a signal surge protector with an aging indicator and a thermal tripping device, belonging to an emergency protection circuit device. Background technique [0002] The function of the signal surge protector is to guide the sudden large current of the signal transmission line into the earth, such as: network lines, telephone lines, various signal transmission lines, etc., to protect the safety of subsequent circuits when encountering lightning. However, as the use time increases, the signal surge protector will gradually age, and its ability to prevent sudden changes in current will decline. In the prior art, there is utility model patent No. ZL201258381.2 which discloses a signal lightning protector. This patent provides a method that can effectively use the temperature mutation characteristics of lightning protection components to accurately determine the working status of the lightni...
Claims
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IPC IPC(8): H02H9/04
Inventor 尹群
Owner 上海优泰欧申智能科技有限公司