CN1161589A - Surge current absorber modular, and art for mfg. same - Google Patents
Surge current absorber modular, and art for mfg. same Download PDFInfo
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- CN1161589A CN1161589A CN 97103879 CN97103879A CN1161589A CN 1161589 A CN1161589 A CN 1161589A CN 97103879 CN97103879 CN 97103879 CN 97103879 A CN97103879 A CN 97103879A CN 1161589 A CN1161589 A CN 1161589A
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- capacitor
- surge current
- rectifier bridge
- diode
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Abstract
The characteristic lies in that the surge current absorbing circuit is composed of peripheral components and composite tube which is composed of at least more than one diode by serial connection or parallel connection, the peripherd component and composite tube are connected by conventional method. Said circuit is a module in shape through injection moulding and firming process. The external terminals of the module are input and output terminals for connecting to the protected circuit. The process for making above mentioned surge current absorber module consists of selecting components, making circuit board, assembling components, measurement of overall property, selecting and making mould, selecting and compounding the injection moulding material injection moulding and firming for the well assembled and measured device and inspecting the finished product. Advantages: filling in the gaps in the applied range of "transient voltage suppressing diode" simple process, low cost.
Description
The present invention relates to a kind of electronic device and manufacture craft thereof, particularly a kind of protection device that suppresses surge current in the circuit---surge current absorber modular and manufacture craft thereof.
In the electronic circuit, the surge current that often has moment to occur is invaded circuit, the function of infringement circuit.Prevent in the known technology that surge current from having the position that " transient voltage inhibition diode " (being T, V, S) is parallel to protected circuit; when surge current is invaded circuit; " T, V, 5 " enters puncture (conducting) state rapidly, and the big electric current of bypass reaches protective effect to voltage clamp." T, V, S " absorbed power is big, but the short repeated pulse of intermittent time that it may occur in can not adaptive circuit, and its " pulse recurrence rate " of allowing (being the pulse duration and the ratio of intermittent time) is very low, usually 10
-4-10
-3Scope, " build-up effect " of pulse power may make it " burn " when exceeding this condition." displacement voltage " Vb of " T, V, the S " of finished product is the test value corresponding to initial conducting current Ib, is Vc corresponding to the breakdown voltage value of breakdown current Ip, and the Vb value is more than 5V, and Vc is called clamp coefficient Cf with the ratio of Vb, and Cf is generally 1.2-1.6.Because restriction terminal voltage when the element operate as normal in some circuit of " T, V, 5 " parameter is lower than 5V, and often duplicating property pulse current (when " pulse recurrence rate " is higher) then can not use " T, V, S " protection.
The objective of the invention is to design a kind of surge current absorber modular; this device can suppress the surge current pulse that moment occurs in the circuit; play the shunting clamping action; the overload current that can suppress the short time again; and can be repeatedly used, be a kind of circuit brake that is better than existing " transient voltage inhibition diode " (i.e. " T, V, S ") that uses.The present invention proposes the manufacture craft of surge current absorber modular simultaneously.
Detailed technology scheme of the present invention: a kind of surge current absorber modular, its feature is to connect to form surge absorbing circuit by serial or parallel connection multiple tube and peripheral component that the diode more than at least one constitutes by routine in it, and this circuit is the module shape through the injection moulding curing process; The outer end points of module is input end and the output that connects protected circuit.
The peripheral component that uses in the foregoing circuit can be midget capacitor C, small inductance element L, rectifier bridge D, above-mentioned components and parts in circuit, can use separately one also can be shared many, its connected mode is that custom circuit connects.
It can be that to be connected in series can also be to be connected in parallel that above-mentioned said diode more than at least one is connected with the routine of peripheral component.
A kind of technology of making above-mentioned surge current absorber modular is characterized in that it is by components and parts screening technology, process for manufacturing circuit board, components and parts packaging technology, overall performance test technology, the mould choosing system technology that begins simultaneously with it, injected plastics material apolegamy technology, formed assembling and the injection moulding curing process and the product inspection technology of testing the device of getting well;
Said components and parts screening technology comprises the screening to diode, capacitor, inductance element and rectifier bridge, and its screening conditions are:
1, diode screening: each diode must be measured its threshold voltage Vg when initial conducting electric current I g, and maximum magnitude of voltage Vd when allowing conducting electric current I d, and the difference according to product parameters Vb, Ib, Vc, Ip requires to choose by following different situations again:
(1) multitube (comprising single tube) series connection compound tense: Ig≤Ib, Vg=Vb/N,
Vd＝Vc/N，Id≥Ip，
(2) multitube parallel compound tense: Vg=Vb, Ig≤Ib/M,
Vd＝Vc，Id≥Ip/M，
Wherein, N, M are the diode number, all get the positive integer less than 5;
2, capacitor screening: capacitor adopts single small-sized finished product electric capacity, its electric capacity operating voltage, and Ve 〉=15V, leakage current≤2 μ A,
Capacitance C=1000 μ F ± 10%;
3, inductance element screening: inductance adopts finished product small stationary inductance,
Inductance is measured 3-8mH, resistance value 5-20 Ω;
4, rectifier bridge screening: the product rectifier bridge or use diode combinations hanked, detect the pontic parameter according to a conventional method;
Said process for manufacturing circuit board is made for the common process method;
Said components and parts packaging technology is made for the common process method;
Said overall performance test technology comprises the test to compound diode, rectifier bridge, inductance capacitor, wherein the test to rectifier bridge, inductance, capacitor is a conventionally test, the test of compound diode should be surveyed its Vc, Ip, Vb, Ib, and its scope should be at Vc:0.6-4.8 (V), Ip:0.1-48 (A), Vb:0.3-2.4 (V), Ib:5-20 (μ A);
Said mould choosing system technology is made for the common process method;
Said injected plastics material apolegamy technology comprises that the examination of materials, material weigh and join binding device, the wherein resistivity in the examination of materials 〉=10
15Ω .cm, dielectric coefficient≤2, dielectric loss factor≤3%, dielectric strength 〉=10kV/mm, and suitably add the mill base of different colours;
Said injection moulding curing process comprises the condition of controling environment, mould purified treatment, ambient temperature should be held constant at 20 ℃-25 ℃ when wherein solidifying, and the cleaning and drying that keep air as far as possible, the temperature of hot curing and thermal response should be controlled between 100 ℃-150 ℃;
Said its test stone of product inspection technology is with the overall performance test condition.
Related compound diode is the operation principle of " transient current inhibition diode " among the present invention: the crowd knows, the forward volt-ampere characteristic of diode has one section insensitive interval (or claim dead band), when applied voltage is near insensitive " threshold values " voltage Vg, electric current I g is very little (usually 10
-5A is following), when applied voltage surpasses Vg, when electric current is non-linear rising and reaches it and allow the electric current I d that passes through for a long time, the voltage Vd at its two ends is called forward voltage drop, Vg, the Ig of each pipe of diode that model is identical, Vd, Id are very close, the same model diode N that the screening parameter difference is little prop up the Vc ' that obtains compound diode after the series connection and Vd ' with the N that rises to single pipe respectively doubly (Vd '=NVg, Vd '=NVd), and Ig ', Id ' constant substantially (Ig ' ≈ Ig, Id ' ≈ Id); If M props up the compound diode that the same model diode is formed in parallel, its applied voltage is respectively Vg '=Vg, and during Vd '=Vd, Ig ', Id ' will be respectively increase M doubly (Ig ' ≈ MIg, Id ' ≈ MId) than Ig, the Id of former single pipe." the transient current inhibition diode (i.e. T, I, S among the figure) that then can form a displacement voltage Vb, current Ib, the suitable needs of clamping voltage Vc, breakdown current Ip after the diode screening group technology processing with different model.According to the different needs of protected circuit,, can make various types of composite type surge current absorbers in the application by the various combinations of capacitor C, inductance L and rectifier bridge D.Fig. 1-(a) (b) is the one pole type that is suitable for DC circuit; Fig. 1-(c) (d) is the two-parameter type of one pole that is adapted to two adjacent series connection of protection in the DC circuit and parameter different elements; Fig. 1-(e) (f) is two polar forms that are applicable to alternating current circuit, and Fig. 1-(g) is the two-parameter types in the two poles of the earth.
The application principle of the related composite type surge current of the present invention absorber: the method for attachment that is applicable to the one pole type surge current absorber of DC circuit and protected element r is shown in Fig. 2-(a), if the normal working voltage of known protected element r is Ur, operating current is Ir, its overload magnification of allowing is Kr, as long as according to Ib≤Ir, Vb ≮ Ur, Uc ≯ KrUr, Up 〉=(Kr-1) four conditions of Ir are selected the parameter of required surge current absorber, be connected to the two ends of r with absorber after, neither influence the operate as normal of r, the effect of overload protection can be arranged r again, when surge current is invaded the residing circuit of protected element r, capacitor C in the surge current absorber can weaken the voltage gradient (du/dt) of spike surge current, absorb its transient energy, transient current in the surge current absorber suppresses diode then with the voltage clamp at r two ends, the big electric current of bypass (release transient energy); If it is limited in one's ability that the bearing of r shoved, and its circuit of living in allows when adding inductance L, can adopt the junction style of Fig. 2-(b), and inductance L then can weaken the steepness (di/dt) of surge current, strengthens the protective effect to r.Then can use (g) three types surge current absorber of Fig. 1-(e) (f) for alternating current circuit.
Superiority of the present invention is: 1, the product technology parameter can be accomplished displacement voltage Vb 〉=0.4V, Ib≤10
-5A, Cf 〉=1.1, Ip≤50A, pulse recurrence rate η＞10
-1Be specially adapted to protect those running currents low, often may meet with the light current element of the big pulse current infringement of repeatability, as microammeter, the miliammeter in test circuit or the device instrument, or normal working voltage is low and the light current circuit, has filled up the blank of " transient voltage inhibition diode " range of application; 2, technology is simple, and cost of manufacture is low.
Further specify present technique below in conjunction with drawings and Examples.
Fig. 1 is the embodiment electrical block diagram of the related surge current absorber modular of the present invention.
1-(a) suppresses diode single tube type circuit for transient current, and C is in parallel with capacitor;
1-(b) is that built-in inductance transient current suppresses diode single tube type circuit;
1-(c) (d) suppresses diode double-tube type circuit for transient current, and capacitor C is in parallel with it;
1-(e) suppresses diode double-tube type circuit for transient current, and two diodes are end to end;
1-(f) promptly adds rectifier bridge D and capacitor C for transient current suppresses diode the two poles of the earth single tube rectification type;
1-(g) suppresses the two-tube rectification type in diode the two poles of the earth for transient current.
Fig. 2 is the related surge current absorber of a present invention user mode schematic diagram, promptly with the circuit connection diagram of protected element r.
2-(a) is for being applicable to the single tube type surge current absorber of DC circuit and the connected mode of r;
2-(b) is for adding the single tube type surge current absorber of inductance L and the connected mode of r.
Fig. 3 is the manufacture craft flow chart of the related surge current absorber modular of the present invention.
Embodiment:
A kind of surge current absorber modular, its feature are to connect to form surge absorbing circuit by serial or parallel connection multiple tube and peripheral component that the diode more than at least one constitutes by routine in it, and this circuit is the module shape through the injection moulding curing process; The outer end points of module is input and the output that connects protected circuit;
Example 1: (see that Fig. 1-a), it is to be made of a multiple tube TIS and capacitor C, capacitor C draws after being connected to the two ends of multiple tube TIS a kind of surge current absorber modular;
Example 2: a kind of surge current absorber modular (is seen Fig. 1-b), it is to be made of a multiple tube TIS, capacitor C and inductance L, capacitor C draws after being connected to multiple tube TIS two ends, and the positive pole of multiple tube is connected in inside with inductance L-end, and the other end of inductance L is drawn;
Example 3: a kind of surge current absorber modular (see that Fig. 1-c), it is to be made of two multiple tube TIS and capacitor C, two multiple tubes series connection, the two ends after the series connection and meet capacitor C after draw, the serial connection point of the multiple tubes of two series connection is drawn potential end in;
Example 4: a kind of surge current absorber modular (is seen Fig. 1-d), it is to be made of two multiple tube TIS and capacitor C, the positive pole of two multiple tubes with draw after an end of capacitor is connected, one negative pole end in the multiple tube is drawn, another negative pole end with draw after the other end of capacitor C is connected;
Example 5: a kind of surge current absorber modular (is seen that Fig. 1-e), it is to be made of two multiple tube TIS, is drawn respectively after the positive and negative polarity two ends of two pipes join;
Example 6: a kind of surge current absorber modular (is seen Fig. 1-f), it is to be made of a multiple tube TIS, capacitor C and rectifier bridge D, the two ends of multiple tube and capacitor C also connect, and its anodal positive terminal with rectifier bridge of the two ends that connect joins, the negative pole end of its negative pole and rectifier bridge joins, and two of rectifier bridge exchanges end and is exit;
Example 7: a kind of surge current absorber modular (is seen Fig. 1-g), it is to be made of two multiple tube TIS, capacitor C and rectifier bridge D, the positive pole of two multiple tubes with draw after an end of capacitor is connected, one negative pole end in the multiple tube is drawn, another negative pole end is connected with the other end of capacitor C, draw after the negative pole of its link and rectifier bridge joins, the positive terminal of rectifier bridge is drawn, and two of rectifier bridge exchanges end and is exit.
Claims (11)
1, a kind of surge current absorber modular, its feature are to connect to form surge absorbing circuit by serial or parallel connection multiple tube and peripheral component that the diode more than at least one constitutes by routine in it, and this circuit is the module shape through the injection moulding curing process; The outer end points of module is input and the output that connects protected circuit.
2, by the said surge current absorber modular of claim 1, it is characterized in that the peripheral component that uses in the said circuit can be midget capacitor C, small inductance element L, rectifier bridge D, above-mentioned components and parts in circuit, can use separately one also can be shared many, its connected mode is that custom circuit connects.
3,, it is characterized in that it can be that to be connected in series can also be to be connected in parallel that said diode more than at least one is connected with the routine of peripheral component by the said surge current absorber modular of claim 1.
4, (see after Fig. 1-a), it is characterized in that it is to be made of a multiple tube TIS and capacitor C, capacitor C are connected to the two ends of multiple tube TIS and draw by claim 1,2,3 said surge current absorber modulars.
5, (see Fig. 1-b) by claim 1,2,3 said surge current absorber modulars, it is characterized in that it is to be made of a multiple tube TIS, capacitor C and inductance L, capacitor C draws after being connected to multiple tube TIS two ends, the positive pole of multiple tube is connected in inside with inductance L-end, and the other end of inductance L is drawn.
6, (see Fig. 1-c) by claim 1,2,3 said surge current absorber modulars, it is characterized in that it is to be made of two multiple tube TIS and capacitor C, two multiple tubes series connection, the two ends after the series connection and meet capacitor C after draw, the serial connection point of the multiple tubes of two series connection is drawn potential end in.
7, (see Fig. 1-d) by claim 1,2,3 said surge current absorber modulars, it is characterized in that it is to be made of two multiple tube TIS and capacitor C, the positive pole of two multiple tubes with draw after an end of capacitor is connected, one negative pole end in the multiple tube is drawn, another negative pole end with draw after the other end of capacitor C is connected.
8, (see and Fig. 1-e), it is characterized in that it is to be made of two multiple tube TIS draw after the positive and negative polarity two ends of two pipes join respectively by claim 1,2,3 said surge current absorber modulars.
9, (see Fig. 1-f) by claim 1,2,3 said surge current absorber modulars, it is characterized in that it is to be made of a multiple tube TIS, capacitor C and rectifier bridge D, the two ends of multiple tube and capacitor C also connect, and its anodal positive terminal with rectifier bridge of the two ends that connect joins, the negative pole end of its negative pole and rectifier bridge joins, and two of rectifier bridge exchanges end and is exit.
10, (see Fig. 1-g) by claim 1,2,3 said surge current absorber modulars, it is to be made of two multiple tube TIS, capacitor C and rectifier bridge D, the positive pole of two multiple tubes with draw after an end of capacitor is connected, one negative pole end in the multiple tube is drawn, another negative pole end is connected with the other end of capacitor C, draw after the negative pole of its link and rectifier bridge joins, the positive terminal of rectifier bridge is drawn, and two of rectifier bridge exchanges end and is exit.
11, a kind of technology of making above-mentioned surge current absorber modular is characterized in that it is by components and parts screening technology, process for manufacturing circuit board, components and parts packaging technology, overall performance test technology, the mould choosing system technology that begins simultaneously with it, injected plastics material apolegamy technology, formed assembling and the injection moulding curing process and the product inspection technology of testing the device of getting well;
Said components and parts screening technology comprises the screening to diode, capacitor, inductance element and rectifier bridge, and its screening conditions are:
(1) diode screening: each diode must be measured its threshold voltage Vg when initial conducting electric current I g, and maximum magnitude of voltage Vd when allowing conducting electric current I d, and the difference according to product parameters Vb, Ib, Vc, Ip requires to choose by following different situations again:
1. multitube (comprising single tube) series connection compound tense: Ig≤Ib, Vg=Vb/N,
Vd＝Vc/N， Id≥Ip，
2. multitube parallel compound tense: Vg=Vb, Ig≤Ib/M,
Vd＝Vc，Id≥Ip/M，
Wherein, N, M are the diode number, all get the positive integer less than 5;
(2) capacitor screening: capacitor adopts single small-sized finished product electric capacity, its electric capacity operating voltage, and Ve 〉=15V, leakage current≤2 μ A,
Capacitance C=1000 μ F ± 10%;
(3) inductance element screening: inductance adopts finished product small stationary inductance,
Inductance is measured 3-8mH, resistance value 5-20 Ω;
(4) rectifier bridge screening: the product rectifier bridge or use diode combinations hanked, detect the pontic parameter according to a conventional method;
Said process for manufacturing circuit board is made for the common process method;
Said components and parts packaging technology is made for the common process method;
Said overall performance test technology comprises the test to compound diode, rectifier bridge, inductance capacitor, wherein the test to rectifier bridge, inductance, capacitor is a conventionally test, the test of compound diode should be surveyed its Vc, Ip, Vb, Ib, and its scope should be at Vc:0.6-4.8 (V), Ip:0.1-48 (A), Vb:0.3-2.4 (V), Ib:5-20 (μ A);
Said mould choosing system technology is made for the common process method;
Said injected plastics material apolegamy technology comprises that the examination of materials, material weigh and join binding device, the wherein resistivity in the examination of materials 〉=10
15Ω .cm, dielectric coefficient≤2, dielectric loss factor≤3%, dielectric strength 〉=10kV/mm, and suitably add the mill base of different colours;
Said injection moulding curing process comprises the condition of controling environment, mould purified treatment, ambient temperature should be held constant at 20 ℃-25 ℃ when wherein solidifying, and the cleaning and drying that keep air as far as possible, the temperature of hot curing and thermal response should be controlled between 100 ℃-150 ℃;
Said its test stone of product inspection technology is with the overall performance test condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103879A CN1046601C (en) | 1997-04-04 | 1997-04-04 | Surge current absorber modular, and art for mfg. same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103879A CN1046601C (en) | 1997-04-04 | 1997-04-04 | Surge current absorber modular, and art for mfg. same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1161589A true CN1161589A (en) | 1997-10-08 |
| CN1046601C CN1046601C (en) | 1999-11-17 |
Family
ID=5166953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97103879A Expired - Fee Related CN1046601C (en) | 1997-04-04 | 1997-04-04 | Surge current absorber modular, and art for mfg. same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046601C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499654B (en) * | 2008-10-23 | 2010-10-06 | 天水华天微电子股份有限公司 | Instant voltage peak and instant voltage surge suppressor |
| CN104348146A (en) * | 2014-10-28 | 2015-02-11 | 江苏大学 | Surge protection circuit of bridge type structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8802434D0 (en) * | 1988-02-03 | 1988-03-02 | British Telecomm | Protector device |
| CN1050796A (en) * | 1990-11-01 | 1991-04-17 | 中国科学院上海技术物理研究所 | Low-noise, electric-shock resisting protection device for electric measurement |
| CA2122763A1 (en) * | 1993-06-09 | 1994-12-10 | Dimitris Jim Pelegris | Telephone line overvoltage protection apparatus |
-
1997
- 1997-04-04 CN CN97103879A patent/CN1046601C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499654B (en) * | 2008-10-23 | 2010-10-06 | 天水华天微电子股份有限公司 | Instant voltage peak and instant voltage surge suppressor |
| CN104348146A (en) * | 2014-10-28 | 2015-02-11 | 江苏大学 | Surge protection circuit of bridge type structure |
| CN104348146B (en) * | 2014-10-28 | 2017-02-22 | 江苏大学 | Surge protection circuit of bridge type structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1046601C (en) | 1999-11-17 |
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