CN208589776U - A kind of overcurrent overvoltage protection device - Google Patents
A kind of overcurrent overvoltage protection device Download PDFInfo
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- CN208589776U CN208589776U CN201821321270.2U CN201821321270U CN208589776U CN 208589776 U CN208589776 U CN 208589776U CN 201821321270 U CN201821321270 U CN 201821321270U CN 208589776 U CN208589776 U CN 208589776U
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- low temperature
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- elastic slice
- welding stage
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Abstract
The utility model discloses a kind of overcurrent overvoltage protection device; including the trip assembley therefor, transient diode component and gas-discharge tube being connected between working electrode; trip assembley therefor includes low temperature tripping welding stage and disengaging elastic slice; low temperature tripping welding stage is connected with the electrode of transient diode component, is detached from elastic slice and is connect with low temperature tripping welding stage by solder.Overcurrent overvoltage protection device described in the utility model is connect using transient diode component with trip assembley therefor; transient diode is in high current; fever is abnormal rapid, so that the solder being detached between elastic slice and low temperature tripping is melted, to effectively thread off circuitry cuts; and utilize gas-discharge tube leakage current; effective protection equipment improves safety in utilization, reduces loss; favorable working performance, applicability are good.
Description
Technical field
The utility model relates to circuit overloads protection technique field more particularly to a kind of overcurrent overvoltage protection devices.
Background technique
Overcurrent overvoltage protection device is to provide the electronics of security protection for various electronic equipments, instrument and meter, communication line
Device, effect is that the instantaneous overvoltage for scurrying into power line, signal transmssion line is limited in the electricity that equipment or system can bear
It presses in range, or powerful surge current aerial drainage is entered into ground, equipment or system is avoided to be hit damage.
The main components of overcurrent overvoltage protection device have varistor, gas-discharge tube, voltage clamping transient state to draw up two
Pole pipe (TVS), voltage switch type transient state are drawn up diode (TSS), thermistor (PTC) etc., wherein varistor has leakage current
And the very easy catching fire of short circuit, when gas-discharge tube Overvoltage suppressing, both ends have very high residual voltage spike, are easy
Damage rear end Sensitive Apparatus；It is general all smaller that transient diode is through-flow, and generally can also have leakage current.So ordinary circumstance
Can be by the way of the cooperation of several devices, or it is made into the mode of component, complementary respective disadvantage.For example, by using pressure-sensitive series connection gas
The mode of body discharge tube reduces residual voltage spike, and leakage current is isolated；Component is made into using varistor fever low temperature solder joint tripping
Mode utilizes fever low temperature solder joint fusing cutting major loop of varistor caused by short circuit current, etc..But often due to pressure-sensitive
Resistance characteristic determines that breakdown short circuit rapidly when overcurrent, calorific value is smaller, and especially high current tripping is relatively difficult, also has
The hidden danger of short-circuit fire.
Utility model content
Technical problem to be solved in the utility model and the technical assignment of proposition are improved to the prior art, are provided
A kind of overcurrent overvoltage protection device solves overcurrent overvoltage protection device tripping difficulty in current technology, and there are short-circuit fire hidden danger
The problem of.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of overcurrent overvoltage protection device, including trip assembley therefor, the transient diode component being connected between working electrode
And gas-discharge tube, trip assembley therefor include low temperature tripping welding stage and are detached from elastic slice, low temperature is threaded off welding stage and transient diode component
Electrode be connected, be detached from elastic slice and low temperature welding stage of threading off and connect by solder.Overcurrent-overvoltage described in the utility model is protected
Shield devices use transient diode component is connect with trip assembley therefor, and for transient diode in high current, fever is abnormal rapid,
The solder being detached between elastic slice and low temperature tripping can be rapidly set to melt, to be detached from elastic slice under own resilient effect
It is separated with low temperature tripping welding stage, thus effectively by circuitry cuts, and gas-discharge tube leakage current is utilized, effectively protect
Equipment is protected, safety in utilization is improved, reduces loss, favorable working performance is small in size, and applicability is good.
Further, the trip assembley therefor, transient diode component and gas discharge tube arrangement are in box body, in box body
The partition that low temperature tripping welding stage and disengaging elastic slice are separated is set, the opening for exposing low temperature tripping welding stage is opened up on partition, it is low
Temperature tripping welding stage is connect in opening by solder with disengaging elastic slice.Be detached from elastic slice and low temperature tripping welding stage between by every
Plate realizes electrical isolation, improves the reliability of tripping isolation, causes temperature to gradually rise when transient diode component gradually degrades,
When either transient diode component passes through to especially big overload current, the temperature of transient diode component is quickly increased, and is detached from
Solder fusing between elastic slice and low temperature tripping welding stage is separated to which the two connects so that circuit disconnects, and effective protection equipment mentions
High safety in utilization reduces loss.
Further, the trip assembley therefor further includes pushing tow interrupter, and the pushing tow interrupter includes arc extinguishing
Slide plate and elastic component, the arc extinguishing slide plate, which is located at, to be detached between elastic slice and partition, described elastic component one end and arc extinguishing slide plate
The connection other end is connected on partition, and arc extinguishing slide plate is resisted against the weldering for being detached from elastic slice and low temperature tripping welding stage under elastic component effect
On contact, and the opening covered on partition is moved to after being detached from elastic slice and separating with low temperature tripping welding stage.Electric current it is excessive or
Person's failure cause be detached from elastic slice and low temperature tripping welding stage between solder fusing when, arc extinguishing slide plate under the action of the elastic member to every
Opening sliding on plate and the overlay masking that will be open, avoid the occurrence of gap, to effectively will be disengaged from elastic slice and, transient diode group
Part, which separates and expands spacing distance, achievees the purpose that electrical isolation and arc extinguishing, improves protective value, improves safety in utilization.
Further, the transient diode component and gas-discharge tube are connected in printed board, compact-sized stabilization,
It is easy to assembly, good operating stability.
Further, the transient diode component is made of several TVS parallel connections.
Further, by several, nominally the identical TVS parallel connection of conducting flow is constituted the transient diode component, body
Product is small, through-current capacity is big, residual voltage value is low, then by the high protectiveness weld tabs welding of specially made structure, fuses, realize when realizing TVS failure
High surge protection performance, assembly are flexible.
Compared with prior art, the utility model advantage is:
Overcurrent overvoltage protection device described in the utility model is connect using transient diode component with trip assembley therefor, transient state
For diode in high current, fever is abnormal rapid, can rapidly make the eutectic welding being detached between elastic slice and low temperature tripping
Material fusing, to effectively thread off circuitry cuts, and utilizes gas-discharge tube leakage current, and effective protection equipment improves
Safety in utilization reduces loss, and favorable working performance is small in size, and applicability is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of overcurrent overvoltage protection device；
Fig. 2 is the structural schematic diagram of section B-B in Fig. 1.
Specific embodiment
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.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of overcurrent overvoltage protection device disclosed in the utility model embodiment, generates heat rapidly in high current, makes
The low temperature trip point for obtaining trip gear is rapidly separated cutting circuit, improves protective value, improves safety in utilization.
As depicted in figs. 1 and 2, a kind of overcurrent overvoltage protection device, mainly by trip assembley therefor, 1 and of transient diode component
Gas-discharge tube 2 is constituted, and three is connected between working electrode 3, and transient diode component 1 and gas-discharge tube 2 are connected to print
In making sheet 4, trip assembley therefor mainly includes low temperature tripping welding stage 5 and is detached from elastic slice 6, and low temperature is threaded off welding stage 5 and transient diode group
The electrode of part 1 is connected, and is detached from elastic slice 6 and is connect with low temperature tripping welding stage 5 by solder, in order to improve use reliability, and
Guarantee tripping after electrical isolation effect, trip assembley therefor, transient diode component 1 and 2 device of gas-discharge tube in box body 7,
The partition 8 that low temperature tripping welding stage 5 and disengaging elastic slice 6 are separated is set in box body 7, is opened up on partition 8 and exposes low temperature tripping weldering
The opening 81 of platform 5, low temperature tripping welding stage 5 are connect at opening 81 by solder with disengaging elastic slice 6.
Trip assembley therefor further includes pushing tow interrupter, and the pushing tow interrupter includes arc extinguishing slide plate 9 and elastic component 10,
The arc extinguishing slide plate 9, which is located at, to be detached between elastic slice 6 and partition 8, and described 10 one end of elastic component connect another with arc extinguishing slide plate 9
End is connected on partition 8, and arc extinguishing slide plate 9 is resisted against the welding for being detached from elastic slice 6 and low temperature tripping welding stage 5 under the effect of elastic component 10
On point, and it is moved to the opening 81 covered on partition 8 after being detached from elastic slice 6 and separating with low temperature tripping welding stage 5, it is excessive in electric current
Or failure cause be detached from elastic slice and low temperature tripping welding stage between solder fusing when, arc extinguishing slide plate under the action of the elastic member to
Arc extinguishing is realized in opening sliding and the overlay masking that will be open on partition, and is improved electrical isolation effect, is improved safety in utilization.
Transient diode component 1 can be used the identical TVS parallel connection of several nominal conducting flows and constitute, then with special knot
The high protectiveness weld tabs welding of structure, the heat dissipation of encapsulating height and insulation colloid, make transient diode can satisfy insulation, high-temp resisting high-humidity resisting,
Small in size, through-current capacity is big, residual voltage value is low.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of overcurrent overvoltage protection device, which is characterized in that including be connected between working electrode (3) trip assembley therefor, wink
State diode assembly (1) and gas-discharge tube (2), trip assembley therefor include low temperature tripping welding stage (5) and are detached from elastic slice (6), low temperature
Tripping welding stage (5) is connected with the electrode of transient diode component (1), is detached from elastic slice (6) and low temperature tripping welding stage (5) passes through low temperature
Solder connection.
2. overcurrent overvoltage protection device according to claim 1, which is characterized in that the trip assembley therefor, two pole of transient state
Tube assembly (1) and gas-discharge tube (2) device are in box body (7), and setting by low temperature tripping welding stage (5) and is detached from box body (7)
The partition (8) that elastic slice (6) separates opens up the opening (81) for exposing low temperature tripping welding stage (5), low temperature tripping weldering on partition (8)
Platform (5) is connect at opening (81) by solder with elastic slice (6) are detached from.
3. overcurrent overvoltage protection device according to claim 2, which is characterized in that the trip assembley therefor further includes pushing tow
Interrupter, the pushing tow interrupter include arc extinguishing slide plate (9) and elastic component (10), and the arc extinguishing slide plate (9) is located at
Be detached between elastic slice (6) and partition (8), the elastic component (10) one end connect with arc extinguishing slide plate (9) other end be connected to every
On plate (8), arc extinguishing slide plate (9) is resisted against the welding for being detached from elastic slice (6) and low temperature tripping welding stage (5) in the case where elastic component (10) act on
On point, and the opening (81) covered on partition (8) is moved to after being detached from elastic slice (6) and separating with low temperature tripping welding stage (5).
4. overcurrent overvoltage protection device according to claim 1, which is characterized in that the transient diode component (1)
It is connected on printed board (4) with gas-discharge tube (2).
5. overcurrent overvoltage protection device according to claim 1, which is characterized in that the transient diode component (1)
It is made of several TVS parallel connections.
6. overcurrent overvoltage protection device according to claim 5, which is characterized in that the transient diode component (1)
By several, nominally the identical TVS parallel connection of conducting flow is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821321270.2U CN208589776U (en) | 2018-08-15 | 2018-08-15 | A kind of overcurrent overvoltage protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821321270.2U CN208589776U (en) | 2018-08-15 | 2018-08-15 | A kind of overcurrent overvoltage protection device |
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| Publication Number | Publication Date |
|---|---|
| CN208589776U true CN208589776U (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821321270.2U Active CN208589776U (en) | 2018-08-15 | 2018-08-15 | A kind of overcurrent overvoltage protection device |
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| CN (1) | CN208589776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335791A (en) * | 2019-09-01 | 2019-10-15 | 捷捷半导体有限公司 | A kind of failed open type protection device |
-
2018
- 2018-08-15 CN CN201821321270.2U patent/CN208589776U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335791A (en) * | 2019-09-01 | 2019-10-15 | 捷捷半导体有限公司 | A kind of failed open type protection device |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191203 Address after: No.702, 7th floor, R & D building, Lingyun building, No.2, Liufang Road, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen City Tekarms Protective Electric Co., Ltd. Address before: 611731 No. 19 Tianyu Road, West Zone, hi tech Zone, Sichuan, Chengdu Patentee before: Sichuan Zhongguang Lightning Protection Technologies Co., Ltd. |