CN209344764U - A kind of transient diode mould group with overcurrent and overheat protector - Google Patents
A kind of transient diode mould group with overcurrent and overheat protector Download PDFInfo
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- CN209344764U CN209344764U CN201920199373.4U CN201920199373U CN209344764U CN 209344764 U CN209344764 U CN 209344764U CN 201920199373 U CN201920199373 U CN 201920199373U CN 209344764 U CN209344764 U CN 209344764U
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- transient diode
- thermal cutoffs
- overcurrent
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Abstract
The transient diode mould group with overcurrent and overheat protector that the utility model discloses a kind of, including PTC thermistor, Thermal Cutoffs, TVS transient diode and shell；The two sides of PTC thermistor are provided with the first pin and second pin, the front and rear sides of TVS transient diode, which are respectively arranged with, powers on pole piece and lower electrode slice, Thermal Cutoffs is internally provided with the first Thermal Cutoffs, and the both ends of the first Thermal Cutoffs are provided with the third pin and the 4th pin for stretching out Thermal Cutoffs；The third pin of the Thermal Cutoffs is electrically connected with pole piece electric connection, the second pin of the PTC thermistor and lower electrode slice is powered on.The utility model is when abnormal surge current voltage reaches the power limit of TVS transient diode; PTC thermistor abnormal heating is transmitted to rapidly the first Thermal Cutoffs; to make the first Thermal Cutoffs act rapidly and disconnecting circuit, the defencive function to transient diode is realized.
Description
Technical field
The utility model relates to a kind of diode modules, specifically a kind of transient diode with overcurrent and overheat protector
Mould group.
Background technique
TVS is the abbreviation of Transient Voltage Suppressor, it is a kind of votage limit type over-voltage protector of diode.When
When the two poles of the earth of TVS are by reversed transient state high energy impact events, it can be with the speed of 10 grade of minus 12 seconds by the high resistant of its two interpolar
Resistance is Low ESR, absorbs up to thousands of watts of surge power, makes the voltage clamp of two interpolars in a predetermined value, effectively protect
The precision components in electronic circuit are protected from the damage of surge pulse.Its main feature has: fast response time (ps grades), wink
State power is big, leakage current is low, breakdown voltage deviation small (≤5%), clamping ability are strong etc..The resistance to Surge suppression voltage capability of TVS is special
By force, pulse power is from several hectowatts to tens kilowatts, and pulse peak current is from several peaces to several hundred peaces.
TVS is now widely used for computer system, communication apparatus, AC/DC power supply, automobile, electric ballast, household
Electric appliance, instrument and meter (kilowatt-hour meter), RS232/422/423/485, I/O, common mode/differential mode protection, RF coupling/IC driving receive
The every field such as protection, the inhibition of motor electromagnetic wave interference, audio/video input, sensor/speed changer, industry control circuit.
But short-circuit failure can occur in use for Transient Suppression Diode, once short-circuit failure occurs, release
High-energy the electronic equipment of protection can usually be damaged, this is the main problem that current TVS application is encountered.
Utility model content
The transient diode mould group with overcurrent and overheat protector that the purpose of this utility model is to provide a kind of, to solve
The problems mentioned above in the background art.
To achieve the above object, the utility model provides the following technical solutions:
A kind of transient diode mould group with overcurrent and overheat protector, including PTC thermistor, Thermal Cutoffs, TVS
Transient diode and shell；The PTC thermistor, Thermal Cutoffs, TVS transient diode are set to the inside of shell, PTC
The two sides of thermistor are provided with the first pin and second pin, and the front and rear sides of TVS transient diode, which are respectively arranged with, to be powered on
Pole piece and lower electrode slice, Thermal Cutoffs are fixedly mounted on lower electrode slice, and Thermal Cutoffs is internally provided with the first temperature
Fuse, the both ends of the first Thermal Cutoffs are provided with the third pin and the 4th pin for stretching out Thermal Cutoffs；The third
Pin is electrically connected with pole piece electric connection, the second pin and lower electrode slice is powered on.
As a further solution of the present invention: the shell is the body structure of inner hollow, shell is by plastics, pottery
The insulating materials such as porcelain, bakelite are made.
It is additionally provided on the shell as a further solution of the present invention, for by PTC thermistor, first
Thermal Cutoffs and TVS transient diode are fixed on the cover board of interior of shell.
The guiding of first pin and the 4th pin upwardly through cover board as a further solution of the present invention,
Hole is pierced by.
It is welding that the second pin and lower electrode slice, which are electrically connected mode, as a further solution of the present invention,
Or riveting, the third pin are welded or riveted with pole piece electric connection mode is powered on.
The Thermal Cutoffs is internally provided with heat-sensitive alloy and special as a further solution of the present invention,
Fluxing agent is enclosed with special fluxing agent on heat-sensitive alloy, and the melting range of heat-sensitive alloy is usually 60 DEG C -230 DEG C, special fluxing
The softening temperature point of agent is usually 60-100 DEG C.
The high Heat Conduction Material of filling thermal coefficient in the shell as a further solution of the present invention, it is thermally conductive
Material is heat conductive silica gel or heat-conduction epoxy resin.
The inside of the shell is additionally provided with second temperature fuse as a further solution of the present invention, the
Two Thermal Cutoffs and instruction or remote signalling circuit are electrically connected, and the both ends of second temperature fuse are provided with two remote signalling pins,
Remote signalling pin is pierced by upwardly through the pilot hole of cover board.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model is by integrated PTC thermistor, the first Thermal Cutoffs and TVS transient diode, in exception
When surge current voltage reaches the power limit of TVS transient diode, PTC thermistor abnormal heating is transmitted to rapidly the first temperature
Fuse is spent, so that the first Thermal Cutoffs be made to act simultaneously disconnecting circuit rapidly, realizes the defencive function to transient diode；
2, it is additionally provided with second temperature fuse, reaches the receiving pole of TVS transient diode in abnormal surge current voltage
In limited time, PTC thermistor abnormal heating is transmitted to second temperature fuse, and second temperature fuse disconnects instruction or remote signalling electricity
Road, thus prompt maintenance personnel replacement have overcurrent and overheat protector transient diode mould group, lifting means it is reliable
Property and service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first embodiment of the transient diode mould group with overcurrent and overheat protector.
Fig. 2 is the outside drawing of the first embodiment in the transient diode mould group with overcurrent and overheat protector.
Fig. 3 is the structural schematic diagram of second of embodiment in the transient diode mould group with overcurrent and overheat protector.
Fig. 4 is the outside drawing of second of embodiment in the transient diode mould group with overcurrent and overheat protector.
In figure: the first pin of 1-, 2- second pin, 3-PTC thermistor, 4- Thermal Cutoffs, 5- Thermal Cutoffs are close
Envelope resin, 6- third pin, the 4th pin of 7-, under 8- electrode slice, 9-TVS transient diode, 10- power on pole piece, 11- shell,
12- cover board, 13- second temperature fuse.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of transient diode mould group with overcurrent and overheat protector referring to FIG. 1-2, including PTC thermistor 3,
Thermal Cutoffs 4, TVS transient diode 9 and shell 11；The shell 11 is the body structure of inner hollow, and shell 11 is by moulding
The insulating materials such as material, ceramics, bakelite are made, and the PTC thermistor 3, Thermal Cutoffs 4, TVS transient diode 9 are set to
The inside of shell 11, the two sides of PTC thermistor 3 are provided with the first pin 1 and second pin 2, before TVS transient diode 9
Two sides are respectively arranged with lower electrode slice 8 and power on pole piece 10 afterwards, and Thermal Cutoffs 4 is fixedly mounted on lower electrode slice 8, and temperature is protected
Dangerous silk 4 is internally provided with the first Thermal Cutoffs, and the both ends of the first Thermal Cutoffs, which are provided with, stretches out the of Thermal Cutoffs 4
Three pins 6 and the 4th pin 7；
The second pin 2 is electrically connected with lower electrode slice 8, and the third pin 6 is electrically connected with pole piece 10 is powered on, from
And it is electrically connected PTC thermistor 3, the first Thermal Cutoffs and TVS transient diode 9 integrally, and formed with overcurrent
With the transient diode mould group of overheat protector；
It is additionally provided on the shell 11 for by PTC thermistor 3, the first Thermal Cutoffs 4 and TVS transient diode
9 are fixed on the cover board 12 inside shell 11, and first pin 1 and the 4th pin 7 are pierced by from the pilot hole of cover board 12, as whole
The input of a mould group, output end；
Specifically, in the present embodiment, second pin 2 and lower 8 electric connection mode of electrode slice are to weld or rivet etc. to be electrically connected
Connect mode, the third pin 6 and to power on 10 electric connection mode of pole piece be the electric connection modes such as to weld or rivet, to make each
Connection relationship between pin and between pin and electrode slice is more stable.
Specifically, the shell of Thermal Cutoffs 4 can be the plastic shells such as PBT, nylon in the present embodiment, it is also possible to
The insulation crust of the other materials such as ceramics, bakelite, the oral area of Thermal Cutoffs 4 are filled with for carrying out to the first Thermal Cutoffs
The sealing resin 5 of sealing.
Embodiment 2
A kind of transient diode mould group with overcurrent and overheat protector referring to FIG. 1-2, including PTC thermistor 3,
Thermal Cutoffs 4, TVS transient diode 9 and shell 11；The shell 11 is the body structure of inner hollow, and shell 11 is by moulding
The insulating materials such as material, ceramics, bakelite are made, and the PTC thermistor 3, Thermal Cutoffs 4, TVS transient diode 9 are set to
The inside of shell 11, the two sides of PTC thermistor 3 are provided with the first pin 1 and second pin 2, before TVS transient diode 9
Two sides are respectively arranged with lower electrode slice 8 and power on pole piece 10 afterwards, and Thermal Cutoffs 4 is fixedly mounted on lower electrode slice 8, and temperature is protected
Dangerous silk 4 is internally provided with the first Thermal Cutoffs, and the both ends of the first Thermal Cutoffs, which are provided with, stretches out the of Thermal Cutoffs 4
Three pins 6 and the 4th pin 7；
The second pin 2 is electrically connected with lower electrode slice 8, and the third pin 6 is electrically connected with pole piece 10 is powered on, from
And it is electrically connected PTC thermistor 3, the first Thermal Cutoffs and TVS transient diode 9 integrally, and formed with overcurrent
With the transient diode mould group of overheat protector；
It is additionally provided on the shell 11 for by PTC thermistor 3, the first Thermal Cutoffs 4 and TVS transient diode
9 are fixed on the cover board 12 inside shell 11, and first pin 1 and the 4th pin 7 are pierced by from the pilot hole of cover board 12, as whole
The input of a mould group, output end；
Specifically, in the present embodiment, second pin 2 and lower 8 electric connection mode of electrode slice are to weld or rivet etc. to be electrically connected
Connect mode, the third pin 6 and to power on 10 electric connection mode of pole piece be the electric connection modes such as to weld or rivet, to make each
Connection relationship between pin and between pin and electrode slice is more stable.
Specifically, the shell of Thermal Cutoffs 4 can be the plastic shells such as PBT, nylon in the present embodiment, it is also possible to
The insulation crust of the other materials such as ceramics, bakelite, the oral area of Thermal Cutoffs 4 are filled with for carrying out to the first Thermal Cutoffs
The sealing resin 5 of sealing.
The present embodiment difference from example 1 is that, the high Heat Conduction Material of filling thermal coefficient in the shell 11,
Heat Conduction Material is heat conductive silica gel, heat-conduction epoxy resin etc., so as to reach TVS transient diode 9 in abnormal surge current voltage
When power limit, 3 abnormal heating of PTC thermistor is transmitted to rapidly the first Thermal Cutoffs, to make the first Thermal Cutoffs
Movement and disconnecting circuit rapidly realize the defencive function to transient diode.
Embodiment 3
Please refer to Fig. 3-4, a kind of transient diode mould group with overcurrent and overheat protector, including PTC thermistor 3,
Thermal Cutoffs 4, TVS transient diode 9 and shell 11；The shell 11 is the body structure of inner hollow, and shell 11 is by moulding
Material is made, and the PTC thermistor 3, Thermal Cutoffs 4, TVS transient diode 9 are set to the inside of shell 11, PTC temperature-sensitive
The two sides of resistance 3 are provided with the first pin 1 and second pin 2, and the front and rear sides of TVS transient diode 9, which are respectively arranged with, to be powered on
Pole piece 10 and lower electrode slice 8, Thermal Cutoffs 4 are fixedly mounted on lower electrode slice 8, and Thermal Cutoffs 4 is internally provided with
One Thermal Cutoffs, the both ends of the first Thermal Cutoffs are provided with the third pin 6 and the 4th pin 7 for stretching out Thermal Cutoffs；
The second pin 2 is electrically connected with lower electrode slice 8, and the third pin 6 is electrically connected with pole piece 10 is powered on, from
And it is electrically connected PTC thermistor 3, the first Thermal Cutoffs and TVS transient diode 9 integrally, and formed with overcurrent
With the transient diode mould group of overheat protector；
It is additionally provided on the shell 11 for by PTC thermistor 3, the first Thermal Cutoffs and TVS transient diode 9
The cover board 12 being fixed on inside shell 11, first pin 1 and the 4th pin 7 are pierced by upwardly through the pilot hole of cover board 12,
Input, output end as entire mould group；
Specifically, in the present embodiment, second pin 2 and lower 8 electric connection mode of electrode slice are to weld or rivet etc. to be electrically connected
Connect mode, the third pin 6 and to power on 10 electric connection mode of pole piece be the electric connection modes such as to weld or rivet, to make to draw
Connection relationship between foot and electrode slice is more stable.
Specifically, Thermal Cutoffs 4 can be the plastic shells such as PBT, nylon in the present embodiment, it is also possible to ceramics, electricity
The insulation crust of the other materials such as wood, the oral area of Thermal Cutoffs 4 are filled with for being sealed to the first Thermal Cutoffs
Sealing resin 5.
The present embodiment difference from example 1 is that, the inside of the shell 11 be additionally provided with second temperature insurance
Silk 13, second temperature fuse 13 and instruction or remote signalling circuit are electrically connected, and the both ends of second temperature fuse 13 are provided with two
Zhi Yaoxin pin, remote signalling pin are pierced by upwardly through the pilot hole of cover board 12, reach TVS transient state two in abnormal surge current voltage
When the power limit of pole pipe 9, PTC thermistor abnormal heating is transmitted to the first Thermal Cutoffs 4 and second temperature fuse 13,
First Thermal Cutoffs acts and disconnects main circuit, and second temperature fuse 13 disconnects instruction or remote signalling circuit, to prompt to tie up
Repair the transient diode mould group that maintenance personnel's replacement has overcurrent and overheat protector, the reliability of lifting means and service life.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (8)
1. a kind of transient diode mould group with overcurrent and overheat protector, including PTC thermistor (3), Thermal Cutoffs
(4), TVS transient diode (9) and shell (11)；The PTC thermistor (3), Thermal Cutoffs (4), TVS transient diode
(9) it is set to the inside of shell (11), which is characterized in that
The two sides of PTC thermistor (3) are provided with the first pin (1) and second pin (2), the front and back of TVS transient diode (9)
Two sides, which are respectively arranged with, powers on pole piece (10) and lower electrode slice (8), and Thermal Cutoffs (4), which is fixedly mounted on, powers on pole piece (10)
On, Thermal Cutoffs (4) is internally provided with the first Thermal Cutoffs, and the both ends of the first Thermal Cutoffs are provided with stretching temperature
The third pin (6) and the 4th pin (7) of fuse (4)；
The second pin (2) and lower electrode slice (8) are electrically connected, and the third pin (6) and power on that pole piece (10) is electrical to be connected
It connects.
2. the transient diode mould group according to claim 1 with overcurrent and overheat protector, which is characterized in that described outer
Shell (11) is the body structure of inner hollow, and for shell (11) by insulating materials, insulating materials is specially plastics, ceramics or bakelite.
3. the transient diode mould group according to claim 1 with overcurrent and overheat protector, which is characterized in that described outer
It is additionally provided on shell (11) outer for PTC thermistor (3), the first Thermal Cutoffs and TVS transient diode (9) to be fixed on
The internal cover board (12) of shell (11).
4. the transient diode mould group according to claim 3 with overcurrent and overheat protector, which is characterized in that described
One pin (1) and the 4th pin (7) are pierced by upwardly through the pilot hole of cover board (12).
5. the transient diode mould group according to claim 4 with overcurrent and overheat protector, which is characterized in that described
Two pins (2) and lower electrode slice (8) electric connection mode are to weld or rivet, and the third pin (6) and are powered on pole piece (10)
Electric connection mode is to weld or rivet.
6. the transient diode mould group according to claim 5 with overcurrent and overheat protector, which is characterized in that the temperature
Degree fuse (4) is internally provided with heat-sensitive alloy, and special fluxing agent, the melting range of heat-sensitive alloy are enclosed on heat-sensitive alloy
It is 60 DEG C -230 DEG C, the softening temperature point of special fluxing agent is 60-100 DEG C.
7. the transient diode mould group according to claim 6 with overcurrent and overheat protector, which is characterized in that described outer
The high Heat Conduction Material of filling thermal coefficient in shell (11), Heat Conduction Material are heat conductive silica gel or heat-conduction epoxy resin.
8. the transient diode mould group according to claim 1 with overcurrent and overheat protector, which is characterized in that described outer
The inside of shell (11) is additionally provided with second temperature fuse (13), and second temperature fuse (13) and instruction or remote signalling circuit are electrical
Connection, the both ends of second temperature fuse (13) are provided with two remote signalling pins, and remote signalling pin is led upwardly through cover board (12)
It is pierced by hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920199373.4U CN209344764U (en) | 2019-02-15 | 2019-02-15 | A kind of transient diode mould group with overcurrent and overheat protector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920199373.4U CN209344764U (en) | 2019-02-15 | 2019-02-15 | A kind of transient diode mould group with overcurrent and overheat protector |
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| CN209344764U true CN209344764U (en) | 2019-09-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687392A (en) * | 2019-02-15 | 2019-04-26 | 漳州雅宝电子有限公司 | A kind of transient diode mould group with overcurrent and overheat protector |
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2019
- 2019-02-15 CN CN201920199373.4U patent/CN209344764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687392A (en) * | 2019-02-15 | 2019-04-26 | 漳州雅宝电子有限公司 | A kind of transient diode mould group with overcurrent and overheat protector |
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Address after: No.6, Hongjian Road, jiaomei Town, Taiwan investment zone, Zhangzhou City, Fujian Province, 363000 Patentee after: Zhangzhou Yabao Electronics Co.,Ltd. Address before: 363007 Hongjian Industrial Zone, Longchi Development Zone, Zhangzhou City, Fujian Province Patentee before: ZHANGZHOU YABAO ELECTRONIC Co.,Ltd. |