CN104753053A - Novel surge protector - Google Patents

Novel surge protector Download PDF

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Publication number
CN104753053A
CN104753053A CN201310747308.8A CN201310747308A CN104753053A CN 104753053 A CN104753053 A CN 104753053A CN 201310747308 A CN201310747308 A CN 201310747308A CN 104753053 A CN104753053 A CN 104753053A
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China
Prior art keywords
piezo
resistance
pin
novel
input
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Pending
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CN201310747308.8A
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Chinese (zh)
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孙巍巍
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Individual
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Individual
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Priority to CN201310747308.8A priority Critical patent/CN104753053A/en
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Abstract

The invention relates to a novel surge protector. The novel surge protector is characterized in that a lightning-proof element uses a piezoresistor with novel pins, the pin positions and pin number are obtained through calculation and current density simulation, when the input/output end comprises more than one pin, the pins can be connected by an electrode plate; one end of the piezoresistor is connected with an input port through a connection conductor while the other end is connected with an output port through a connection conductor; the whole body is located in a pedestal. By means of the design, current fully flows through inside filled substance without increasing or changing the substrate area and parallel number of the piezoresistor in the surge protector, the inside substance use ratio is improved, and the flow capacity, impact resistance, protection level and service life of the surge protector are improved.

Description

A kind of novel surge protective device
Technical field
The invention belongs to electric electronic element field.Mainly for a kind of novel surge protective device, by changing the structure function of its core parts piezo-resistance, its through-flow performance more can be met the demands.
Background technology
Piezo-resistance is a kind of non-linear overvoltage protection semiconductor element to voltage-sensitive; number of different types can be divided into according to its structure, manufacture process, use material, voltage-current characteristic etc.; common varistor device is metal oxide piezo-resistance, especially Zinc-oxide piezoresistor.With conventional resistor observe Ohm's law unlike, piezo-resistance makes according to the nonlinear characteristic of semi-conducting material, and its voltage and electric current are then special non-linear relation.
Piezo-resistance (being called for short MOV) has cheap, and non-ohmic behavior is excellent, and the response time is fast, and the advantages such as leakage current is little, and discharge capacity is large, are therefore widely used in electronic circuit, electric power system and other field.Surge Protector (Surge Productive Devices; be called for short SPD) be for transient suppression overvoltage and the device shunting impulse current; it at least comprises a non-linear element, usually using the core parts of piezo-resistance as Surge Protector.When voltage is lower, piezo-resistance works in leakage current section, presents very large resistance, and leakage current is very little; After voltage rising enters inelastic region, when electric current changes in sizable scope, change in voltage is little, presents good pressure limiting characteristic; Voltage raises again, and piezo-resistance enters saturation region, presents a very little linear resistance, and because electric current is very large, time one length will make overheated the burning of piezo-resistance even burst.During normal use, piezo-resistance is in leakage current section, enters inelastic region and to release surge current, generally can not enter saturation region when being subject to surge impact.
But lightning current is the large pulse of a kind of moment, and in tens microseconds, electric current can reach kiloampere up to a hundred.Varistor is the core parts of surge surge protector (being called for short SPD).The C level of power-supply system lightning protection and overvoltage protection and B level SPD, for the through-flow index request of 8/20 impulse current, substantially in (10kA ~ 150kA) scope, reach such requirement, in the production of SPD with in using, the method of usual employing: one is often adopt large-area single resistor disc, and two is the parallel combinations adopting multiple resistor disc; Seldom there is practicable method can be applied to making full use of of piezo-resistance.
Market today; the core parts of Surge Protector; piezo-resistance has SMD, pin; but be all two contact poles; namely for the filler (common is grain and grain boundary layer) of its inside; the path that electric current flows through them is the single-pathway of " one-in-and-one-out "; and electric current must be select the minimum path of resistance to pass through; so this single path is very short; that is the inside stuffing matter of one piece of complete piezo-resistance, only has sub-fraction to be used to resist rush of current thus leakage current.Two pin design of " one-in-and-one-out " of existing piezo-resistance; through-flow and shock-resistant on have some defects; macroscopically reflect that the useful life of Surge Protector is short, it is not enough to resist larger lightning current and impacts on lightning protection, is difficult to the requirement be up to state standards.
Summary of the invention
In order to effectively solve the above prior-art problems, the present invention proposes a kind of novel surge protective device, it is characterized in that lightning protection component adopts the piezo-resistance with novel pin method for designing, by to calculate and current density emulation draws position and the quantity of pin, avaivable electrode sheet connection during input, output more than one pin; Input port and delivery outlet are accessed respectively by bonding conductor in piezo-resistance two ends; Entirety is arranged in base.The problem of poor, the shock-resistant ability of Surge Protector through-current capability caused by improving piezo-resistance pin " one-in-and-one-out " single-pathway, new pin design mode can make be able to effective prolongation the useful life of same Surge Protector.The piezo-resistance novel surge protective device of the structure that this employing is new can be an invention achievement with novelty in Surge Protector manufacturing industry, thus brings huge economic benefit, and promotes the superiority of lightning protection industry in international competition.
The present invention is by the following technical solutions: lightning protection component adopts the piezo-resistance with novel pin method for designing, by calculate and current density emulation draws position and the quantity of pin, and avaivable electrode sheet connection during input, output more than one pin; Under the prerequisite not increasing or change piezoresistive wafer area and number of parallel in Surge Protector; by changing quantity and the position of piezo-resistance pin; the utilization of its inside stuffing matter is made to reach maximization; thus final lifting Surge Protector through-current capability, shock-resistant ability characteristics, and protection class and useful life etc.Input port and delivery outlet are accessed respectively by bonding conductor in piezo-resistance two ends; Entirety is arranged in base.Core parts piezo-resistance of the present invention comprises substrate, electrode slice, pin, and position and quantity are determined by calculating and current density emulation.
 
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention first exemplary embodiments.
Fig. 2 is the structural representation of the present invention second exemplary embodiments.
Fig. 3 is the structural representation of the present invention the 3rd exemplary embodiments.
Wherein: A-has the piezo-resistance of novel pin method for designing, B-Surge Protector base, C-input port, D-delivery outlet, E-bonding conductor.
 
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
If Fig. 1 is the first exemplary embodiments of the present invention, the typical structure that core parts piezo-resistance can be designed to " two enter goes out ", electric current inflow direction is two pins, connects with a cube electrode sheet; Outflow of bus current direction is a pin, and wherein 1-1 is current input electrode sheet, and 1-2a is current input pin 1,1-2b be current input pin 2,1-3 is electric current output pin, and 1-4 is piezo-resistance substrate.
If Fig. 2 is the second exemplary embodiments of the present invention, core parts piezo-resistance can be designed to the typical structure of " enters scene 2 ", and electric current inflow direction is a pin; Outflow of bus current direction is two pins, connects with a cube electrode sheet, and wherein 2-1 is current input pin, and 2-2 is piezo-resistance substrate, and 2-3a is electric current output pin 1,2-3b be electric current output pin 2,2-4 is electric current output electrode sheet.
If Fig. 3 is the 3rd exemplary embodiments of the present invention, core parts piezo-resistance can be designed to the typical structure of " two enter scene 2 ", and electric current inflow direction is two pins, connects with a cube electrode sheet; Outflow of bus current direction is also two pins, connect with a cube electrode sheet, wherein 3-1 is current input electrode sheet, 3-2a is current input pin 1,3-2b is current input pin 2,3-3a be electric current output pin 1,3-3b is electric current output pin 2,3-4 is electric current output electrode sheet, and 3-5 is piezo-resistance substrate.
Except three exemplary embodiments shown in Fig. 1,2,3, the design of core parts piezo-resistance of the present invention, also comprise the form such as " entering to go out ", " enters to have more ", " enter more and have more " more, be greater than end of incoming cables or the leading-out terminal of a pin, other embodiment connected with electrode slice.
The input of electric current, the quantity of output pin, obtain according to calculating and current density emulation, the position of pin and the quantity path of decision electric current in piezo-resistance filler and density.Be greater than end of incoming cables or the leading-out terminal of a pin, connect with electrode slice.Electrode slice can be used as piezo-resistance in use, connects the stiff end of wire.
This novel surge protective device, the pin design method of core parts piezo-resistance is the improvement to original piezo-resistance substrate and lifting, does not change the area of piezo-resistance substrate in original Surge Protector and number in parallel.
 
Utilize technical scheme of the present invention, reach corresponding technique effect, or not departing from the technical scheme equivalents under design philosophy of the present invention, all within protection scope of the present invention.

Claims (6)

1. a novel surge protective device, is characterized in that: lightning protection component adopts has the piezo-resistance of novel pin method for designing, by calculate and current density emulation draws position and the quantity of pin, and avaivable electrode sheet connection during input, output more than one pin; Input port and delivery outlet are accessed respectively by bonding conductor in piezo-resistance two ends; Entirety is arranged in base.
2. a kind of novel surge protective device according to claim 1, is characterized in that: do not increase or change the area of piezo-resistance substrate in original Surge Protector and number in parallel.
3. a kind of novel surge protective device according to claim 1, is characterized in that: the input and output pin of core parts piezo-resistance adopts the design of " two enter one goes out " type.
4. a kind of novel surge protective device according to claim 1, is characterized in that: the input and output pin of core parts piezo-resistance adopts the design of " one enters scene 2 " type.
5. a kind of novel surge protective device according to claim 1, is characterized in that: the input and output pin of core parts piezo-resistance adopts the design of " two enter scene 2 " type.
6. a kind of novel surge protective device according to claim 1, is characterized in that: the input and output pin of core parts piezo-resistance also can adopt " entering one to go out ", " one enters many places ", the design of " enter more and have more " type more.
CN201310747308.8A 2013-12-31 2013-12-31 Novel surge protector Pending CN104753053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310747308.8A CN104753053A (en) 2013-12-31 2013-12-31 Novel surge protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310747308.8A CN104753053A (en) 2013-12-31 2013-12-31 Novel surge protector

Publications (1)

Publication Number Publication Date
CN104753053A true CN104753053A (en) 2015-07-01

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2133033Y (en) * 1992-07-06 1993-05-12 夏维东 Piezoresistire resistor
CN1604238A (en) * 2004-10-29 2005-04-06 成都铁达电子有限责任公司 Surge protector built-in pressure-sensitive chip having multiple step invalidation function
US20060291127A1 (en) * 2005-06-27 2006-12-28 Hee-Man Kim Device to protect against a surge voltage and an electronic apparatus including the same
CN2864932Y (en) * 2005-08-30 2007-01-31 广东省佛山科星电子有限公司 Pressure sensitive resistance type over-pressure safety device
DE202007002275U1 (en) * 2007-02-15 2007-05-10 Lin, Li-Hua, Hsintien Varistor e.g. voltage dependent resistor, has ceramic crystal with main body provided with electrode layers on both sides, and current conductors with one end linearly welded on exterior of electrode layers of crystal
US20120122326A1 (en) * 2009-05-12 2012-05-17 Werner Kallee Pluggable Varistor
CN104700971A (en) * 2013-11-12 2015-06-10 孙巍巍 Varistor adopting novel base pin design method
CN104733143A (en) * 2013-12-18 2015-06-24 孙巍巍 Piezoresistor based on novel pin design method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2133033Y (en) * 1992-07-06 1993-05-12 夏维东 Piezoresistire resistor
CN1604238A (en) * 2004-10-29 2005-04-06 成都铁达电子有限责任公司 Surge protector built-in pressure-sensitive chip having multiple step invalidation function
US20060291127A1 (en) * 2005-06-27 2006-12-28 Hee-Man Kim Device to protect against a surge voltage and an electronic apparatus including the same
CN1945916A (en) * 2005-06-27 2007-04-11 三星电子株式会社 Device to protect against a surge voltage and an electronic apparatus including the same
CN2864932Y (en) * 2005-08-30 2007-01-31 广东省佛山科星电子有限公司 Pressure sensitive resistance type over-pressure safety device
DE202007002275U1 (en) * 2007-02-15 2007-05-10 Lin, Li-Hua, Hsintien Varistor e.g. voltage dependent resistor, has ceramic crystal with main body provided with electrode layers on both sides, and current conductors with one end linearly welded on exterior of electrode layers of crystal
US20120122326A1 (en) * 2009-05-12 2012-05-17 Werner Kallee Pluggable Varistor
CN104700971A (en) * 2013-11-12 2015-06-10 孙巍巍 Varistor adopting novel base pin design method
CN104733143A (en) * 2013-12-18 2015-06-24 孙巍巍 Piezoresistor based on novel pin design method
CN204706406U (en) * 2013-12-18 2015-10-14 孙巍巍 A kind of piezo-resistance adopting novel pin method for designing

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Application publication date: 20150701