CN204012690U - Compact template carries the pressure-sensitive lightning protection device of formula - Google Patents
Compact template carries the pressure-sensitive lightning protection device of formula Download PDFInfo
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- CN204012690U CN204012690U CN201420441247.2U CN201420441247U CN204012690U CN 204012690 U CN204012690 U CN 204012690U CN 201420441247 U CN201420441247 U CN 201420441247U CN 204012690 U CN204012690 U CN 204012690U
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- lightning protection
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Abstract
The utility model discloses a kind of compact template and carry the pressure-sensitive lightning protection device of formula, comprise the pressure-sensitive lightning-proof chip (3) that is positioned at pressure-sensitive lightning protection device inner box (2), two electrodes of pressure-sensitive lightning-proof chip (3) are connected with respectively electrode lead-out pins A(5) and electrode lead-out pins B(7), on the hot dispersal point of pressure-sensitive lightning-proof chip (3), be connected with heat and depart from electrode (10); Heat departs from electrode (10) and strains by extension spring (9) with the bearing pin of pressure-sensitive lightning protection module inner box (2).This makes hot releasing mechanism more compact, and also still less, the volume of pressure-sensitive lightning protection device is less for its assembly, installs more convenient.
Description
Technical field
The utility model relates to a kind of compact template and carries the pressure-sensitive lightning protection device of formula, belongs to overvoltage protective device technical field.
Background technology
It is taking ZnO lightning-proof chip as main element that plate carries formula pressure-sensitive lightning protection module, and a kind of overvoltage protection of integrated hot-melting mechanism or hot releasing mechanism, is widely used in electronic circuit system.Its core parts ZnO lightning-proof chip is a kind of votage limit type protection device, and its current-voltage characteristic curve has significant nonlinear characteristic.Under piezo-resistance normal working voltage, in high-impedance state, be equivalent to a capacitor; After certain voltage, will become low resistance state and by current distributing when exceeding, thereby protection electric equipment and electronic component be not because overvoltage is damaged.Along with the fast development of microelectronics information technology, miniaturization to components and parts, integrated so that modular requirement is more and more urgent.The electronic component of miniaturization is highly sensitive, and anti overvoltage level is low, this has promoted the demand of electronic equipment to lightning protection.
Plate carries the end protection of formula pressure-sensitive lightning protection module for electronic circuit, and its handling characteristics requires to depart from rapidly, reliable, volume is little etc.At present, the plate with heat protection function carries formula pressure-sensitive lightning protection module, normally on piezoresistive element, attaches a thermo-fuse; In the time that piezo-resistance is subject to all kinds overvoltage and causes temperature anomaly to raise, thermo-fuse fusing and forming is opened circuit, thereby reaches heat protection object.But this structure heat accumulation efficiency is low, blow out fuse required time is long; in the time running into higher power-frequency overvoltage, can not cut off to fast and reliable circuit; and this technological deficiency can make heat protection effect have a greatly reduced quality, and can not effectively prevent varistor catching fire under higher power-frequency overvoltage.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of safe, reliable, willing compact template and carries formula pressure-sensitive lightning protection module, can overcome the deficiencies in the prior art.
To achieve these goals, the utility model is by the following technical solutions:
Compact template carries the pressure-sensitive lightning protection device of formula, it comprises the pressure-sensitive lightning-proof chip being placed in inner box, on pressure-sensitive lightning-proof chip, be connected with electrode lead-out pins A, be provided with interior electrode upper, on interior electrode, be welded with heat by low melting point scolding tin and depart from electrode, heat departs from electrode and is connected with electrode lead-out pins B, departs from heat the extension spring that the end that is connected with interior electrode of electrode connects pressure-sensitive lightning-proof chip and be connected to the hot disengaging of stretchy electrode, the other end of extension spring be connected to electrode lead-out pins B inner box in the same way on.
Depart between electrode and electrode lead-out pins B and be connected with soft copper cable in heat.
Surface at inner box offers window, and heat departs from electrode and is connected with interior electrode by window.
On inner box, be provided with the outer box coordinating with it.
Compared with the prior art, the utility model has changed disconnected hot melt originally the disengaging hot melt into and departs to add and be pulled away from mechanism, thereby can make disconnected being swift in response of hot melt of whole pressure-sensitive lightning protection device, has solved the shortcoming of existing structure.Pressure-sensitive lightning-proof chip for the method preparation that " 201110122032.5 " and application number " 201410061277.5 " provide, significantly improves the reliability of hot releasing mechanism according to the patent No..Depart between electrode and electrode lead-out pins B and be connected with soft copper cable in heat, so hot releasing mechanism is designed more compactly, its assembly also still less, the volume of pressure-sensitive lightning protection module is less, install more convenient, on electrode lead-out pins 7, be electrically connected with signal of telecommunication pin 6, facilitate like this warning device of join dependency.
brief description of the drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is explosion type structural representation of the present utility model.
In figure, 1 outer box; 2 inner boxs; 3 pressure-sensitive lightning-proof chips; 4 interior electrodes; 5 electrode lead-out pins A; 6 signal of telecommunication leading foots; 7 electrode lead-out pins B; 8 soft copper cables; 9 extension springs; 10 heat depart from electrode.
Embodiment
embodiment,below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
As shown in Fig. 1～2: pressure-sensitive lightning-proof chip 3 is packaged in pressure-sensitive lightning protection module inner box 2, the middle section of this pressure-sensitive lightning-proof chip exposes from be located at the window on pressure-sensitive lightning protection module inner box 2 surfaces; Be provided with hot releasing mechanism on the surface of pressure-sensitive lightning protection module inner box 2, this hot releasing mechanism is welded on middle section, the other end of piezo-resistance by one end by low melting point scolding tin and the electrode lead-out pins 7 that is fixed on pressure-sensitive lightning protection module inner box 2 is connected by soft copper cable 8, and an interior electrode 4 of pressure-sensitive lightning-proof chip 3 is electrically connected with the electrode lead-out pins 5 being fixed on pressure-sensitive lightning protection module inner box 2.
In the time of low temperature melts soldering tin, depart from electrode 10 in order to ensure heat and can be rapidly disengage and cut off circuit with piezo-resistance 3, be fixed with bearing pin on the surface of pressure-sensitive lightning protection module inner box 2, one end of extension spring is fixed on bearing pin, the hot disengaging of other end tension electrode 10.
For easy to use, be fixed with the signal of telecommunication pin 6 being electrically connected with electrode lead-out pins 7 at pressure-sensitive lightning protection module inner box 2; In the time that heat disengaging electrode 10 disengages with pressure-sensitive lightning-proof chip 3, the 6 no signals outputs (voltage reduces to zero) of signal of telecommunication pin, the onsite alarming circuit being electrically connected with signal of telecommunication pin 6 can send alarm.
The above refers to that embodiment is only preferred embodiment of the present utility model; not limit practical range of the present utility model with this; therefore the equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by protection range of the present utility model.
Claims (5)
1. a compact template carries the pressure-sensitive lightning protection device of formula, it comprises the pressure-sensitive lightning-proof chip (3) being placed in inner box (2), on pressure-sensitive lightning-proof chip (3), be connected with electrode lead-out pins A (5), it is characterized in that: on pressure-sensitive lightning-proof chip (3), be provided with interior electrode (4), above be welded with heat by low melting point scolding tin at interior electrode (4) and depart from electrode (10), heat departs from electrode (10) and is connected with electrode lead-out pins B (6), the end being connected with interior electrode (4) at heat disengaging electrode (10) is connected with the extension spring (9) that stretchy heat departs from electrode (10), the other end of extension spring (9) be connected to electrode lead-out pins B (6) inner box (1) in the same way on.
2. compact template according to claim 1 carries the pressure-sensitive lightning protection device of formula, it is characterized in that: depart between electrode (10) and electrode lead-out pins B (6) and be connected with soft copper cable (8) in heat.
3. compact template according to claim 2 carries the pressure-sensitive lightning protection device of formula, it is characterized in that: the surface at inner box (2) offers window, and heat departs from electrode (10) and is connected with interior electrode (4) by window.
4. compact template according to claim 3 carries the pressure-sensitive lightning protection device of formula, it is characterized in that: on inner box (2), be provided with the outer box (1) coordinating with it.
5. compact template according to claim 3 carries the pressure-sensitive lightning protection device of formula, it is characterized in that: on electrode lead-out pins (7), be electrically connected with signal of telecommunication pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441247.2U CN204012690U (en) | 2014-08-07 | 2014-08-07 | Compact template carries the pressure-sensitive lightning protection device of formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441247.2U CN204012690U (en) | 2014-08-07 | 2014-08-07 | Compact template carries the pressure-sensitive lightning protection device of formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012690U true CN204012690U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420441247.2U Active CN204012690U (en) | 2014-08-07 | 2014-08-07 | Compact template carries the pressure-sensitive lightning protection device of formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204012690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092255A (en) * | 2016-11-21 | 2018-05-29 | 谭孟艮 | A kind of surge protector without back-up protection device |
-
2014
- 2014-08-07 CN CN201420441247.2U patent/CN204012690U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092255A (en) * | 2016-11-21 | 2018-05-29 | 谭孟艮 | A kind of surge protector without back-up protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |