CN207818292U - A kind of high radiating safety piezoresistor - Google Patents
A kind of high radiating safety piezoresistor Download PDFInfo
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- CN207818292U CN207818292U CN201721717441.9U CN201721717441U CN207818292U CN 207818292 U CN207818292 U CN 207818292U CN 201721717441 U CN201721717441 U CN 201721717441U CN 207818292 U CN207818292 U CN 207818292U
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Abstract
The utility model discloses a kind of high radiating safety piezoresistors, including crystal frame, crystal frame both sides outer wall is welded with electrode, and it is welded at two electrode opposite side outer wall central axes leaded, the crystal frame bottom outer wall is welded with lead frames, and lead frames top exterior walls are provided with through-hole, the grafting of lead bottom outer wall is on that inner wall of the through hole, the lead frames bottom outer wall is plugged with arc connecting line, and arc connecting line top exterior walls are welded in lead bottom outer wall, crystal frame both sides inner wall is provided with card slot, and card slot inner wall is plugged with mica sheet.The utility model passes through mica sheet and heat sink; protective resistance is in low pressure or overvoltage; accelerate heat dissipation, protect internal element, extends varistor service life; over-pressed shrapnel and connection copper sheet can be used as specific test side and be detected; it when more than nominal threshold voltages, is divided, with closing radiator portion; protective resistance element will not overheat, and influence electrical resistance property.
Description
Technical field
The utility model is related to varistor technical field more particularly to a kind of high radiating safety piezoresistors.
Background technology
Piezoresistor has nonlinear wind vibration and has the solid-state voltage sensing element of transient suppression overvoltage effect,
When terminal voltage is less than a certain threshold value, the electric current of piezoresistor is no better than zero；When more than this threshold value, current value is with terminal voltage
Increase and sharply increase, the nonlinear wind vibration of piezoresistor is by the variation of varistor body (or pressure-sensitive knot) voltage drop
Caused by, so also known as nonlinear resistor is often used pressure sensitive and arrester valve piece is made, instead in power industry
Also there is pressure-sensitive character to the selenium cell of characteristic and avalanche diode etc., but traditionally still continue to use respective original name, it is existing
The nominal threshold value of piezoresistor is 220-270V, but in low pressure or overvoltage, is easily generated heat, and damages internal element, simultaneously
Piezoresistor is due to model difference, and after long-term use, numerical value can change, before use, be detected first, but without spy
It is accurately detected fixed test side.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of high heat dissipation safety proposed
Type piezoresistor.
To achieve the goals above, the utility model uses following technical solution：
A kind of high radiating safety piezoresistor, including crystal frame, crystal frame both sides outer wall are welded with electrode,
And welding is leaded at two electrode opposite side outer wall central axes, the crystal frame bottom outer wall is welded with lead frames, and
Lead frames top exterior walls are provided with through-hole, and the grafting of lead bottom outer wall on that inner wall of the through hole, insert by the lead frames bottom outer wall
It is connected to arc connecting line, and arc connecting line top exterior walls are welded in lead bottom outer wall, crystal frame both sides inner wall is opened
There is card slot, and card slot inner wall is plugged with mica sheet, the second card slot, and the second card are provided at mica sheet top exterior walls central axes
Slot inner wall is connected with ITO conductive films, and ITO conductive films side outer wall is provided with the second through-hole, and the second through-hole wall is welded with
Separated time head, separated time head both sides outer wall are connected with connection copper sheet by conducting wire, and connect copper sheet top exterior walls and be provided with button hole,
Button hole inner wall is connected with over-pressed shrapnel, and the crystal frame is welded with detector close to the side outer wall of separated time head, and detector leans on
The side outer wall of smectic body frame is provided with third card slot, and ITO conductive films side outer wall is plugged on third card slot inner wall, the crystal
Frame both sides inner wall is uniformly filled with zincite crystal, and crystal frame both sides outer wall is enclosed with the same insulated paint jacket, the crystalline substance
Body frame side outer wall is provided with third through-hole, and third through-hole inner wall is plugged with indicator light.
Preferably, the quantity of the ITO conductive films is six to eight layers, and six to eight layers of ITO conductive films are equidistant is fitted in
On the inner wall of second card slot.
Preferably, insulated paint jacket both sides outer wall is provided with groove, and groove inner wall is fixed with heat dissipation by screw
Plate.
Preferably, the quantity of the mica sheet is four to six, and point of four to six mica sheet parallel spacings incrementally
For cloth on crystal frame inner wall, the spacing of mica sheet is incremented by direction as indicator light to over-pressed shrapnel.
Preferably, the over-pressed shrapnel is bimetallic bonding jumper, and the threshold voltage of over-pressed shrapnel is 220-270V.
Preferably, ITO conductive films both sides outer wall is provided with the second groove, and the second groove inner wall is connected with sampling
Plate.
The beneficial effects of the utility model are：
1. by being provided with mica sheet and heat sink, protection varistor accelerates heat dissipation, protection in low pressure or overvoltage
Internal element extends the service life of varistor.
2. by being provided with over-pressed shrapnel and connection copper sheet, it can be used as specific test side and be detected, can also keep away simultaneously
Exempt from overvoltage, when being more than nominal threshold voltages, is divided, with radiator portion is closed, protective resistance element will not overheat, and influence electricity
Resistive matter.
Description of the drawings
Fig. 1 be the utility model proposes a kind of high radiating safety piezoresistor cross-sectional view of the structure；
Fig. 2 be the utility model proposes a kind of high radiating safety piezoresistor structural side view；
Fig. 3 be the utility model proposes a kind of high radiating safety piezoresistor structural front view.
In figure：1 crystal frame, 2 indicator lights, 3 mica sheets, 4 leads, 5 electrodes, 6 zincite crystals, 7 separated time heads, 8 connection copper
Piece, 9 over-pressed shrapnels, 10 detectors, 11ITO conductive films, 12 lead frames, 13 heat sinks, 14 insulated paint jackets.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, a kind of high radiating safety piezoresistor, including crystal frame 1,1 both sides outer wall of crystal frame weld
It is connected to electrode 5, and welds leaded 4 at two 5 opposite side outer wall central axes of electrode, 1 bottom outer wall of crystal frame, which is welded with, draws
Line pedestal 12, and 12 top exterior walls of lead frames are provided with through-hole, 4 bottom outer wall grafting of lead on that inner wall of the through hole, lead frames
12 bottom outer walls are plugged with arc connecting line, and arc connecting line top exterior walls are welded in 4 bottom outer wall of lead, crystal frame 1
Both sides inner wall is provided with card slot, and card slot inner wall is plugged with mica sheet 3, and mica sheet is provided with the second card slot at 3 top exterior walls central axes,
And second card slot inner wall be connected with ITO conductive films 11,11 side outer wall of ITO conductive films is provided with the second through-hole, and in the second through-hole
Wall is welded with separated time head 7, and 7 both sides outer wall of separated time head is connected with connection copper sheet 8 by conducting wire, and connects 8 top exterior walls of copper sheet
It is provided with button hole, button hole inner wall is connected with over-pressed shrapnel 9, and crystal frame 1 is welded with detector 10 close to the side outer wall of separated time head 7,
And detector 10 is provided with third card slot close to the side outer wall of crystal frame 1,11 side outer wall of ITO conductive films is plugged on third card
On slot inner wall, 1 both sides inner wall of crystal frame uniformly be filled with zincite crystal 6, and 1 both sides outer wall of crystal frame be enclosed with it is same absolutely
Edge enamel-cover set 14,1 side outer wall of crystal frame is provided with third through-hole, and third through-hole inner wall is plugged with indicator light 2.
In the utility model, the quantity of ITO conductive films 11 is six to eight layers, and six to eight layers of ITO conductive films 11 are equidistant
It is fitted on the inner wall of the second card slot, 14 both sides outer wall of insulated paint jacket is provided with groove, and groove inner wall is fixed by screw
Have a heat sink 13, the quantity of mica sheet 3 is four to six, and four to six 3 parallel spacings of mica sheet incrementally be distributed in crystalline substance
On 1 inner wall of body frame, the spacing of mica sheet 3 is incremented by direction as indicator light 2 to over-pressed shrapnel 9, and over-pressed shrapnel 9 is that bimetallic overlaps
Piece, and the threshold voltage of over-pressed shrapnel 9 is 220-270V, 11 both sides outer wall of ITO conductive films is provided with the second groove, and second
Groove inner wall is connected with sampling plate.
Operation principle：Before use, first removing over-pressed shrapnel 9, connection connection copper sheet 8 is detected, and is pacified after detection
Load onto over-pressed shrapnel 9, then by connecting lead wire 4, moved by the electronics in zincite crystal 6, current value with terminal voltage increasing
It sharply increases greatly, can be when more than threshold voltage when hitting ITO conductive films 11, the closure of over-pressed shrapnel 9 is divided.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of high radiating safety piezoresistor, including crystal frame (1), which is characterized in that outside crystal frame (1) both sides
Wall is welded with electrode (5), and welds leaded (4) at the opposite side outer wall central axes of two electrodes (5), the crystal frame
(1) bottom outer wall is welded with lead frames (12), and lead frames (12) top exterior walls are provided with through-hole, lead (4) bottom outer wall
On that inner wall of the through hole, lead frames (12) bottom outer wall is plugged with arc connecting line, and outer at the top of arc connecting line for grafting
Wall is welded in lead (4) bottom outer wall, and crystal frame (1) both sides inner wall is provided with card slot, and card slot inner wall is plugged with mica
Piece (3) is provided with the second card slot at mica sheet (3) the top exterior walls central axes, and the second card slot inner wall is connected with ITO conductive films
(11), ITO conductive films (11) side outer wall is provided with the second through-hole, and the second through-hole wall is welded with separated time head (7), described
Separated time head (7) both sides outer wall is connected with connection copper sheet (8) by conducting wire, and connects copper sheet (8) top exterior walls and be provided with button hole, detains
Hole inner wall is connected with over-pressed shrapnel (9), and the crystal frame (1) is welded with detector (10) close to the side outer wall of separated time head (7),
And detector (10) is provided with third card slot close to the side outer wall of crystal frame (1), ITO conductive films (11) side outer wall is plugged on the
On three card slot inner walls, crystal frame (1) both sides inner wall is uniformly filled with zincite crystal (6), and crystal frame (1) both sides outer wall
It is enclosed with the same insulated paint jacket (14), crystal frame (1) side outer wall is provided with third through-hole, and third through-hole inner wall is inserted
It is connected to indicator light (2).
2. a kind of high radiating safety piezoresistor according to claim 1, which is characterized in that the ITO conductive films
(11) quantity is six to eight layers, and six to eight layers of ITO conductive films (11) are equidistant is fitted on the inner wall of the second card slot.
3. a kind of high radiating safety piezoresistor according to claim 1, which is characterized in that the insulated paint jacket
(14) both sides outer wall is provided with groove, and groove inner wall is fixed with heat sink (13) by screw.
4. a kind of high radiating safety piezoresistor according to claim 1, which is characterized in that the mica sheet (3)
Quantity be four to six, and four to six mica sheet (3) parallel spacings being distributed on crystal frame (1) inner wall incrementally, cloud
It is the extremely over-pressed shrapnel (9) of indicator light (2) that the spacing of master slice (3), which is incremented by direction,.
5. a kind of high radiating safety piezoresistor according to claim 1, which is characterized in that the overvoltage shrapnel
(9) it is bimetallic bonding jumper, and the threshold voltage of over-pressed shrapnel (9) is 220-270V.
6. a kind of high radiating safety piezoresistor according to claim 1, which is characterized in that the ITO conductive films
(11) both sides outer wall is provided with the second groove, and the second groove inner wall is connected with sampling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721717441.9U CN207818292U (en) | 2017-12-12 | 2017-12-12 | A kind of high radiating safety piezoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721717441.9U CN207818292U (en) | 2017-12-12 | 2017-12-12 | A kind of high radiating safety piezoresistor |
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| Publication Number | Publication Date |
|---|---|
| CN207818292U true CN207818292U (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721717441.9U Active CN207818292U (en) | 2017-12-12 | 2017-12-12 | A kind of high radiating safety piezoresistor |
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| Country | Link |
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| CN (1) | CN207818292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112489908A (en) * | 2020-12-02 | 2021-03-12 | 辰硕电子(九江)有限公司 | Piezoresistor with elastic module |
-
2017
- 2017-12-12 CN CN201721717441.9U patent/CN207818292U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112489908A (en) * | 2020-12-02 | 2021-03-12 | 辰硕电子(九江)有限公司 | Piezoresistor with elastic module |
| CN112489908B (en) * | 2020-12-02 | 2022-04-15 | 辰硕电子(九江)有限公司 | Piezoresistor with elastic module |
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