Switch module
A switch module, power switch technology, applied in the direction of automatic disconnection of emergency protection devices, electrical components, circuit devices, etc., can solve problems such as limited service life of surge absorbing components and damage to electronic components
Inactive Publication Date: 2012-05-09
POWERTECH INDAL
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the temperature of the surge absorbing element itself is actually higher than the temperature sensed by the thermal fuse, and the service life of the surge absorbing element is limited. Therefore, it is still possible that the surge absorbing element catches fire first and the thermal fuse blows again. Or, if the fire of the surge absorbing element and the fusing of the thermal fuse occur at the same time, the surrounding electronic components may still be damaged.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035] Figure 1A A schematic diagram of a first embodiment of the switch module of the present invention is shown. Such as Figure 1A As shown, the switch module 1 a includes a power switch 11 , a surge absorber 13 , an insulating member 15 a and a heat shrinkable tape 19 a. Wherein, the insulator 15a is inserted on the power switch 11; the surge absorber 13 is arranged on a circuit board 17 and adjacent to the power switch 11; the heat shrinkable band 19a is connected with the surge absorber 13 and the insulator 15a.
[0036] In this embodiment, the power switch 11 includes a housing 110, an operating portion 111, a first conductor 113 and a second conductor 115, and the number of conductors of the power switch 11 can be two or three. That is, a third conductor 117 may also be included. Wherein, the first electrical conductor 113, the second electrical conductor 115 and the third electrical conductor 117 are all inserted on the casing 110, that is, each of the electrical ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a switch module, which is applied to a power supply system, and comprises a power supply switch, an insulating piece, a surge absorber and a thermal shrinkable belt. The power supply switch is connected with the power supply system; the insulating piece is plugged into the power supply switch; the surge absorber is electrically connected with the power supply switch and is adjacent to the power supply switch; the thermal shrinkable belt is connected with the surge absorber and the insulating piece, and is used for playing a role in shrinking through the temperature of the surge absorber; when the insulating piece is in an original state, the switchover of the power supply switch is not influenced; and when the shrinkage level of the thermal shrinkable belt is enough to drive the insulating piece to block the startup of the power supply switch, the power supply switch is in a breaker status. According to the switch module provided by the invention, due to the utilization of the thermal shrinkage characteristic of the thermal shrinkable belt, the thermal shrinkable belt is shrunk substantially before the surge absorber fails so as to drive the insulating piece to power off the power supply switch and enable an operation part to be failed, so that a user can be prevented from continuing to use the operation part to switch over for supplying power, and an effect of dual protection is achieved.
Description
technical field [0001] The invention relates to a switch module, in particular to a non-recoverable power switch module which realizes automatic power-off by utilizing the contraction effect of the heat-shrinkable tape. Background technique [0002] In order to prevent damage to electronic components caused by transient voltage surges in the power supply system, surge absorbing components such as metal oxide varistors (Metal Oxide Varistor, MOV) are usually installed in the electronic circuit. Since the surge absorbing element generates high heat energy when absorbing the surge, it is likely to cause the surge absorbing element itself to catch fire and cause damage to the surrounding electronic components. [0003] Therefore, a known method is to connect a thermal cutoff fuse in series between the surge absorbing element and the power supply system, and use the thermal cutoff fuse to be blown by heat, so that the electronic circuit and the power supply system are in a discon...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02H5/04
Inventor 李裕隆许荣辉
Owner POWERTECH INDAL