CN102480119A - Surge protection device - Google Patents
Surge protection device Download PDFInfo
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- CN102480119A CN102480119A CN2010105555022A CN201010555502A CN102480119A CN 102480119 A CN102480119 A CN 102480119A CN 2010105555022 A CN2010105555022 A CN 2010105555022A CN 201010555502 A CN201010555502 A CN 201010555502A CN 102480119 A CN102480119 A CN 102480119A
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- activity template
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Abstract
The invention relates to a surge protection device, which comprises a base and a module, wherein the module is inserted into the base and comprises a shell; a voltage dependent resistor and a thermal detachment mechanism are arranged in the shell; a first insert and a second insert are arranged on the two sides of the shell; the thermal detachment mechanism comprises an electrode and a movable sheet; and the electrode is connected in series with one end of the voltage dependent resistor and is fixed at a middle position of the movable sheet. The surge protection device has the advantages of simple manufacturing process, low cost and capability of automatically cutting off a circuit with over-high current under lightning impulse so as to guarantee the safety of an electrical appliance and greatly improve the safety performance of work.
Description
Technical field
The present invention relates to a kind of overvoltage emergency protective device of circuit, the surge protector of the anti-thunderbolt of especially a kind of ability.
Background technology
Along with progress of science and technology; The human entering information age of 21 century; Advanced electronic products such as network, monitoring, measurement, protection, control, telecommunications and computer are applied in the various systems of information industry, communications and transportation, electric power, government affairs office, financial instrument, automobile making, petrochemical industry and residential houses just increasingly extensively; Various electric elements in the low-voltage distribution system are just progressively realized intelligent, have consequently selected the electronic component that a large amount of withstand voltages are low, sensitiveness is high for use.Lightning overvoltage and switching overvoltage will be brought fatal harm to these electronic components; Thereby the range, frequency, the degree of depth that make overvoltage destroy unprecedentedly strengthen; According to incompletely statistics, China causes annual to lose more than 200,000,000 yuan because of lightning overvoltage and switching overvoltage.In order to prevent the damage of lightning overvoltage and switching overvoltage to electronic and electrical equipment, improve the security reliability of system, various surge protectors have appearred.
Surge protector is a kind of low-voltage variation device commonly used; Under normal circumstances; It is in high impedance status, in case and circuit because of thunderbolt or other reason when surge occurring, its can conducting in the extremely short time; Lightning current or overvoltage are introduced the earth through passing through earth connection, come the equipment on the protection circuit with this.When surge protector causes deterioration because of a variety of causes, this moment, surge protector can swash acute heating, thereby made the trip gear action in the surge protector, and surge protector and circuit are come off, and prevented surge protector " short circuit ", and line accident is magnified.
Summary of the invention
In order to overcome above defective, the technical problem that the present invention will solve is: it is low to propose a kind of cost of manufacture, and line impedance is little and can improve the protection surge device of its electric property.
The technical scheme that the present invention adopted is: a kind of surge protector, comprise pedestal and module, and said module is plugged on the said pedestal; Said module comprises shell; Said enclosure is provided with piezo-resistance and hot releasing mechanism, and said shell both sides are provided with first inserted sheet and second inserted sheet, and said hot releasing mechanism comprises electrode and activity template; One end of said electrode and said piezo-resistance is connected in series, and said electrode is fixed in the centre position of activity template.
According to another preferred embodiment, a kind of surge protector comprises that further said electrode is connected through the low temperature soldering with piezo-resistance.
According to another preferred embodiment, a kind of surge protector further comprises an end and the shell active link of said activity template.
According to another preferred embodiment, a kind of surge protector comprises that further an end of said activity template is connected with shell elasticity.
According to another preferred embodiment, a kind of surge protector comprises that further the other end of said first inserted sheet and piezo-resistance is connected in series.
According to another preferred embodiment, a kind of surge protector comprises that further said second inserted sheet is connected through metallic conductor with said electrode.
According to another preferred embodiment, a kind of surge protector further comprises between said activity template and the said shell and being connected through extension spring.
According to another preferred embodiment, a kind of surge protector comprises that further said activity template is connected side with the elasticity of said shell and offers form.
According to another preferred embodiment, a kind of surge protector comprises that further said shell is the flame retardant plastics shell.
According to another preferred embodiment, a kind of surge protector comprises that further said base material is a semi-conducting material.
The invention has the beneficial effects as follows: manufacture craft is simple, and cost is low, and when being struck by lightning, the circuit that this surge protector can be excessive with electric current automatically cuts off, thereby has guaranteed the safety of electrical equipment, has improved the security performance of work greatly.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
Fig. 2 is the vertical view of Fig. 1.
Among the figure: 1, pedestal, 3, module, 5, shell, 7, piezo-resistance, 9, first inserted sheet, 11, second inserted sheet, 13, electrode, 15, activity template, 17, form, 19, metallic conductor.
Embodiment
Combine accompanying drawing and preferred embodiment that the present invention is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
A kind of surge protector shown in Fig. 1-2 comprises pedestal 1 and module 3, and said module 3 is plugged on the said pedestal 1; Said module 3 comprises shell 5; Said shell 5 set inside have piezo-resistance 7 and hot releasing mechanism, and said shell 5 both sides are provided with first inserted sheet 9 and second inserted sheet 11, and said hot releasing mechanism comprises electrode 13 and activity template 15; Said electrode 13 is connected in series with an end of said piezo-resistance 7, and said electrode 13 is fixed in the centre position of activity template 15.
A kind of surge protection device as shown in Figure 1, electrode 13 is connected through the low temperature soldering with piezo-resistance 7, and soldering is through after utilizing low-melting brazing metal heat fused, infiltrates and fill the welding method in gap, metalwork junction; This electrode 13 is fixed in the centre position of activity template 15, and the other end of activity template 15 is connected with shell 5 elasticity, and activity template 15 and described shell 5 are connected through extension spring, and the extension spring connected mode can in time provide pulling force to activity template 15; In addition, first inserted sheet 9 is connected with piezo-resistance 7 other ends, and second inserted sheet 11 is flexible coupling with above-mentioned electrode 13, has increased the contact area of inserted sheet and piezo-resistance 7 and electrode 13 like this, has improved the disposal ability of this surge protector; Shell 5 is the flame retardant plastics shell, and pedestal 1 is processed by plastic semiconductor, and second inserted sheet 11 is connected through metallic conductor 19 with electrode 13, so can electric current in time be transmitted; On shell 5, have form 17, this form 17 is positioned at activity template 15 and is connected side with shell 5 elasticity, has alert flag on the other end of activity template 15, guarantees after surge protector damages, in time to notify the user.
Operation principle of the present invention is: under normal condition, the present invention is in high-impedance state, does not almost have electric current to flow through; Supply voltage is applied to first inserted sheet 9 and second inserted sheet, 11 ends, and piezo-resistance 7 is being born supply voltage, when thunder and lightning or the arrival of other switching overvoltage; Heat in the piezo-resistance 7 passes an end of the electrode 13 of receiving soldered, and electrode 13 and piezo-resistance 7 are broken off, and activity template 15 receives the active force of extension spring; Make piezo-resistance 7 break away from power supply, thereby reach the purpose that prevents to cause fire, simultaneously because of short circuit; After activity template 15 actions, red colour code reveals through form 17, provides the alarm signal of product deterioration; Automatically electric current is excessive simultaneously circuit cuts off, thereby has guaranteed electric security performance.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (10)
1. a surge protector comprises pedestal and module, it is characterized in that: said module is plugged on the said pedestal; Said module comprises shell; Said enclosure is provided with piezo-resistance and hot releasing mechanism, and said shell both sides are provided with first inserted sheet and second inserted sheet, and said hot releasing mechanism comprises electrode and activity template; One end of said electrode and said piezo-resistance is connected in series, and said electrode is fixed in the centre position of activity template.
2. a kind of surge protector according to claim 1 is characterized in that: said electrode is connected through the low temperature soldering with piezo-resistance.
3. a kind of surge protector according to claim 1 is characterized in that: an end of said activity template and shell active link.
4. a kind of surge protector according to claim 1 is characterized in that: an end of said activity template is connected with shell elasticity.
5. a kind of surge protector according to claim 1 is characterized in that: the other end of said first inserted sheet and piezo-resistance is connected in series.
6. a kind of surge protector according to claim 1 is characterized in that: said second inserted sheet is connected through metallic conductor with said electrode.
7. a kind of surge protector according to claim 1 is characterized in that: be connected through extension spring between said activity template and the said shell.
8. a kind of surge protector according to claim 1 is characterized in that: said activity template is connected side with the elasticity of said shell and offers form.
9. a kind of surge protector according to claim 1 is characterized in that: said shell is the flame retardant plastics shell.
10. a kind of surge protector according to claim 1 is characterized in that: said base material is a semi-conducting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105555022A CN102480119A (en) | 2010-11-23 | 2010-11-23 | Surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105555022A CN102480119A (en) | 2010-11-23 | 2010-11-23 | Surge protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102480119A true CN102480119A (en) | 2012-05-30 |
Family
ID=46092651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105555022A Pending CN102480119A (en) | 2010-11-23 | 2010-11-23 | Surge protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102480119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560538A (en) * | 2018-12-29 | 2019-04-02 | 赣电防雷电气有限公司 | A kind of power surge protector |
-
2010
- 2010-11-23 CN CN2010105555022A patent/CN102480119A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560538A (en) * | 2018-12-29 | 2019-04-02 | 赣电防雷电气有限公司 | A kind of power surge protector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |