CN207134172U

CN207134172U - A kind of compound MOV for inserting GDT

Info

Publication number: CN207134172U
Application number: CN201720823974.9U
Authority: CN
Inventors: 曾清隆; 陈泽同
Original assignee: LONGKE ELECTRONIC (HUIYANG) CO Ltd
Current assignee: LONGKE ELECTRONIC (HUIYANG) CO Ltd
Priority date: 2017-07-10
Filing date: 2017-07-10
Publication date: 2018-03-23
Anticipated expiration: 2027-07-10

Abstract

It the utility model is related to piezoresistor composite component design field, specifically disclose a kind of compound MOV for inserting GDT, provided with upper cartridge body, lower box body, the lower extraction electrode being additionally provided with the embedded lower box body, be sequentially stacked on the lower extraction electrode MOV chips, middle extraction electrode, GDT, on extraction electrode, or be sequentially stacked MOV chips, GDT, upper extraction electrode.MOV, GDT being integrated structure of independent separate body are had concurrently miniaturization in the case where improving the demand of electric property, disclosure satisfy that the requirements at the higher level of electronic circuit and signalling channel by the utility model；Due to GDT gaps buffer action, operating voltage need not be carried during MOV chip normal works, its semiconductor grain aging speed is extremely slow, without Leakage Current during work, its service life is improved, along with damp-proof layer, anti-side sudden strain of a muscle set is equipped with its edge, its service life is longer, reliability is higher, weatherability is stronger.

Description

A kind of compound MOV for inserting GDT

Technical field

Piezoresistor composite component design field is the utility model is related to, more particularly to a kind of inserts answering for GDT Mould assembly MOV.

Background technology

There is conventional MOV (Metal Oxide Varistor, ZnO resistors device) special non-linear UI characteristics (to lie prostrate Pacify characteristic, U represents voltage, and I represents electric current), when the circuit where it is Yi Dan occurs unusual condition when, for example meets with and be struck by lightning, be electric Magnetic interference, power switch frequent movement, power system failure etc., on circuit voltage spikes to more than MOV conducting voltage, MOV will enter conducting area, the nonlinear system numerical value (Nonlinearity Parameter) between electric current (I) and voltage (U) Reachable tens of or up to a hundred, now, MOV impedance can be reduced to only several ohm, overvoltage is formed burst current leakage and is gone out, To protect connected electronic product or expensive component.

With the fast development of clean energy technology, the popularization of high ferro and electric mechanical (such as robot, manipulator etc.) Extensive use, conventional MOV are used in increasing field.In security fields, such as rail control, navigation aviation etc. are to signal Reliability requirement it is high, never allow normal work when have leakage current generation, so must strengthen protecting, and commonly leading In the performance boost of domain such as applied product (such as 4G communication liftings communicate to 5G), conventional MOV can not meet the reality of communication link Border demand, need further to be improved.

GDT (Gas Discharge Tube, gas-discharge tube), substantially it is between a kind of electric discharge being sealed in ceramic cavity Gap, filled with inert gas with the discharge voltage of stabilizing glow tube in cavity.It is big that it is mainly characterized by through-flow energy, up to it is tens of extremely Hundreds of KA, insulaion resistance is high, and no leakage current, no ageing failure, nonpolarity, direct capacitance is minimum, especially suitable for express network The thick protection of communication apparatus.

So if being just avoided that the generation of leakage current to the conventional MOV improvement carried out in structure with reference to GDT, can improve The life and reliability of composite component, it also can further strengthen the protection to whole circuit, here it is the utility model research Main contents.

The content of the invention

The utility model provides a kind of compound MOV for inserting GDT, solves and is added in conventional MOV concrete structure GDT is combined into new composite construction to improve the technical problem of its electric property.

To solve above technical problem, the utility model provides a kind of compound MOV for inserting GDT, provided with upper cartridge body, under Box body, the lower extraction electrode being additionally provided with the embedded lower box body, be sequentially stacked on the lower extraction electrode MOV chips, in Extraction electrode, GDT, upper extraction electrode, or MOV chips, GDT, upper extraction electrode are sequentially stacked, or it is sequentially stacked the first MOV cores Piece, middle extraction electrode, GDT, the 2nd MOV chips, upper extraction electrode, or it is sequentially stacked the first MOV chips, GDT, the 2nd MOV cores Piece, upper extraction electrode, or MOV chips, the first metallic gasket, GDT, the second metallic gasket, upper extraction electrode are sequentially stacked, or according to Secondary stacked first MOV chips, the first metallic gasket, GDT, the second metallic gasket, the 2nd MOV chips, upper extraction electrode；On described Box body is covered on described on extraction electrode, is fastened as a whole by fastener and the lower box body, and to the lower extraction electricity Pole, GDT, upper extraction electrode, and the MOV chips or the first MOV chips, the 2nd MOV chips, with/non-middle the extraction Electrode or first metallic gasket, the second metallic gasket, carry out pressing fixation, i.e.,：To the lower extraction electrode, MOV chips, Middle extraction electrode, GDT, upper extraction electrode carry out pressing fixation, or to the lower extraction electrode, MOV chips, GDT, upper extraction electricity Pole press fixation, or to the lower extraction electrode, the first MOV chips, middle extraction electrode, GDT, the 2nd MOV chips, on draw Go out electrode to carry out pressing fixation, or to the lower extraction electrode, the first MOV chips, GDT, the 2nd MOV chips, upper extraction electrode Carry out pressing fixation, or to the lower extraction electrode, MOV chips, the first metallic gasket, GDT, the second metallic gasket, upper extraction Electrode carries out pressing fixation, or to the lower extraction electrode, the first MOV chips, the first metallic gasket, GDT, the second metal gasket Piece, the 2nd MOV chips, upper extraction electrode carry out pressing fixation.

Specifically, the corner of the upper cartridge body and the lower box body is equipped with boss, is formed between the adjacent boss Ventilating opening；The boss is provided with upper and lower box body corresponding through hole or screwed hole in its height direction, and the fastener passes through The upper cartridge body and the lower box body are fastened as a whole by the through hole or screwed hole；The boss is in towards the one side of box body center Arc surface, the arc surface surround cylindrical accommodation space, and the rounded bottom surface of the cylindrical accommodation space is provided with salient point or convex Line；The bottom surface of the cylindrical accommodation space of the lower box body is additionally provided with electrode fairlead.

Preferably, use insulation fire proofing material made of the upper cartridge body, lower box body for shape identical circle upper cartridge body, Circular lower box body or rectangle upper cartridge body, rectangle lower box body, wherein, it is described convex in the rectangle upper cartridge body and rectangle lower box body Platform is triangle boss.

Preferably, the upper cartridge body and the lower box body contour structure each other；The cylindrical accommodation space of the upper cartridge body With descending extraction electrode, GDT, upper extraction electrode described in the common containing of cylindrical accommodation space of the lower box body, with the MOV cores Piece or the first MOV chips, the 2nd MOV chips, with/non-middle the extraction electrode or first metallic gasket, the second gold medal Belong to pad.

Further, increase each other the boss height of the lower box body of contour structure, reduce the institute of contour structure each other State the boss height of upper cartridge body, the upper cartridge body and the lower box body i.e. not contour structure each other；When the boss of the lower box body The lower extraction electrode, GDT, upper extraction electrode are highly increased to, with the MOV chips or the first MOV chips, second MOV chips, the and/non-middle extraction electrode or first metallic gasket, the second metallic gasket, can all be installed in it is described under When in the cylindrical accommodation space of box body, the upper cartridge body is arranged to the cover plate that boss height is zero, four angles of the cover plate Provided with the through hole or screwed hole corresponding with the through hole or screwed hole of the lower box body, the fastener by the cover plate with it is described Lower box body is fastened as a whole.

Preferably, the GDT uses two pole GDT or three pole GDT；The two pole GDT is provided with lower sparking electrode and upper electric discharge Electrode, the three pole GDT are provided with lower sparking electrode, target and upper sparking electrode.

Preferably, axial lead has convexo-plane leading foot or vertical piece shape leading foot, institute to the lower extraction electrode in the plane It is using circular configuration made of conductive material or rectangular configuration, in described to state extraction electrode, upper extraction electrode, target Extraction electrode, upper extraction electrode and target radially draw straight plate shape leading foot or chip bending shape leading foot in the plane.

Preferably, the conductive material is copper, aluminium, graphite or its alloy.

Preferably, the fastener uses metal or nonmetallic rivet or screw.

A kind of compound MOV for inserting GDT provided by the utility model, by being integrated of MOV, GDT of independent separate body Structure, have miniaturization concurrently in the case where improving the demand of electric property, disclosure satisfy that the requirements at the higher level of electronic circuit and signalling channel； In the ventilating opening that the upper cartridge body and lower box body are set, and the salient point set in the rounded bottom surface of the upper cartridge body and lower box body Or convex line, along with the thermolysis of battery lead plate so that the radiating condition of the compound MOV is greatly improved under surge impact；By Operating voltage need not be carried when GDT gaps buffer action, MOV chip normal works, its semiconductor grain aging speed is extremely slow, It is improved during work without Leakage Current, its service life, along with damp-proof layer, anti-side sudden strain of a muscle set is equipped with its edge, it makes With the life-span is longer, reliability is higher, weatherability is stronger；Component of the present utility model is installed by fastener and fixed, without weldering Connect, avoid the fire damage in manufacturing process, and installed suitable for mechanization, simple and fast, cost are cheap, have greatly warp Ji use value.

Brief description of the drawings

Fig. 1 is a kind of Structure explosion diagram for compound MOV for inserting GDT that the utility model embodiment 1 provides；

Fig. 2 is a kind of electrical connection for compound MOV access circuits for inserting GDT that the utility model embodiment 1 provides Figure；

Fig. 3 is a kind of Structure explosion diagram for compound MOV for inserting GDT that the utility model embodiment 2 provides；

Fig. 4 is a kind of electrically connecting for compound MOV access circuits for inserting GDT that the utility model embodiment 2,4 provides Map interlinking；

Fig. 5 is a kind of Structure explosion diagram for compound MOV for inserting GDT that the utility model embodiment 3 provides；

Fig. 6 is a kind of electrical connection for compound MOV access circuits for inserting GDT that the utility model embodiment 3 provides Figure；

Fig. 7 is a kind of Structure explosion diagram for compound MOV for inserting GDT that the utility model embodiment 4 provides.

Embodiment

Embodiment of the present utility model is specifically illustrated below in conjunction with the accompanying drawings, and embodiment is only given to illustrate mesh , it can not be interpreted as to restriction of the present utility model, including accompanying drawing is only for reference and explanation uses, and does not form new to this practicality The limitation of type scope of patent protection, because on the basis of the spirit and scope of the utility model is not departed from, can be to the utility model Carry out many changes.

Embodiment 1

A kind of compound MOV for inserting GDT that the present embodiment provides, as shown in figure 1, being provided with upper cartridge body provided with lower box body 1 2, the lower extraction electrode 3 being additionally provided with the embedded lower box body 1, be sequentially stacked on the lower extraction electrode 3 MOV chips 4, in Extraction electrode 5, two pole GDT6 (including lower sparking electrode 61 and upper sparking electrode 62), upper extraction electrode 7；The upper cartridge body 2 covers Conjunction on extraction electrode 7, be fastened as a whole on described by fastener 8 and the lower box body 1, and to the lower extraction electrode 3, The MOV chips 4, the middle extraction electrode 5, two pole GDT6, upper extraction electrode 7 carry out pressing fixation.

Wherein, the corner of the upper cartridge body 2 and the lower box body 1 is equipped with boss 9 (in Fig. 1, in upper cartridge body 2 with 1 is denoted in box body 1 respectively, other identical structures do not indicate, and hereafter mutually isostructural sign is as the same), adjacent is described Ventilating opening 10 is formed between boss 9, there is provided airspace；It is corresponding that the boss 9 is provided with upper and lower box body 1 in its height direction Four through holes or screwed hole 91, the fastener 8 is by the through hole or screwed hole 91 by the upper cartridge body 2 and the lower box Body 1 is fastened as a whole；The boss 9 is in arc surface 92 towards the one side of box body center, and it is accommodating that the arc surface 92 surrounds cylinder Space 93, rounded bottom surface 94 (and the bottom surface of the upper cartridge body 2 and the bottom of the lower box body 1 of the cylindrical accommodation space 93 Face) it is provided with salient point or convex line 95；The bottom surface of the cylindrical accommodation space 93 of the lower box body 1 is additionally provided with electrode fairlead 96.

Wherein, use insulation fire proofing material made of the lower box body 1 of upper cartridge body 2 for shape identical circle upper cartridge body, Circular lower box body or rectangle upper cartridge body, rectangle lower box body, wherein, in the rectangle upper cartridge body shown in Fig. 1 and rectangle lower box body In, the boss 9 is triangle boss.

Preferably, the upper cartridge body 2 and the lower box body 1 contour structure each other；The accommodating sky of the cylinder of the upper cartridge body 2 Between 93 with lower extraction electrode 3 described in the 93 common containing of cylindrical accommodation space of the lower box body 1, MOV chips 4, middle draw electricity Pole 5, two pole GDT6, upper extraction electrode 7.When increase each other the height of boss 9 of the lower box body 1 of contour structure, reduce each other The height of boss 9 of the upper cartridge body 2 of contour structure, the upper cartridge body 2 and the lower box body 1 i.e. not contour structure each other；When The height of boss 9 of the lower box body 1 increase to the lower extraction electrode 3, MOV chips 4, middle extraction electrode 5, two pole GDT6, on Extraction electrode 7 can all be installed in the lower box body 1 cylindrical accommodation space 93 it is inner when, the upper cartridge body 2 is arranged to boss 9 Highly it is zero cover plate, four angles of the cover plate are provided with the through hole corresponding with the through hole or screwed hole 91 of the lower box body 1 Or screwed hole 91, the fastener 8 are fitted together to the through hole of the cover plate or the through hole or spiral shell of screwed hole 91 and the lower box body 1 successively Pit 91, the cover plate and the lower box body 1 are fastened as a whole.

The present embodiment is the upper cartridge body 2 and the lower box body 1 i.e. not contour structure but upper cartridge body 2 is set each other It is set to the compound MOV that the height of boss 9 is not zero.

The two pole GDT6 is provided with lower sparking electrode 61 and upper sparking electrode 62.

In the present embodiment, convexo-plane leading foot or vertical piece are axially downwardly provided with the plane of the lower extraction electrode 3 Shape leading foot 31, during for pressing fixed, it is installed at the electrode fairlead 96 of the bottom of lower box body 1.The lower extraction electricity Pole 3, middle extraction electrode 5, upper extraction electrode 7 are using the circular configuration made of conductive material such as copper, aluminium, graphite or its alloy (or rectangular configuration).On the edge of the middle extraction electrode 5 and the circular configuration (or rectangular configuration) of upper extraction electrode 7 radially Draw straight plate shape leading foot or chip bending shape leading foot.In Fig. 1, the lower plane axial lead of extraction electrode 3 is plano-convex Shape leading foot 31, what the middle extraction electrode 5 was radially drawn is straight plate shape leading foot 51, what the extraction electrode 7 was radially drawn It is chip bending shape leading foot 71.

It should be noted that the plane electrode 41 of the MOV chips 4 is made of inferior alloy, its periphery is coated with anti- Damp layer 42, it is installed on anti-side sudden strain of a muscle set 43.The fastener 8 uses metal or nonmetallic four rivets or screws.

If in a kind of compound MOV access circuits for inserting GDT that the present embodiment is provided, because what is used is bipolar GDT6, and the lower extraction electrode 3 and upper extraction electrode 7 that use have extraction effect, as shown in Fig. 2 and the middle extraction The straight plate shape leading foot 51 of electrode 5, with the convexo-plane leading foot 31 of the lower extraction electrode 3 and the piece of the upper extraction electrode 7 Formula bending shape leading foot 71 forms the measurement relation of discrete component, can monitor the electrical of the compound MOV and GDT therein respectively Energy.

Embodiment 2

As shown in figure 3, the present embodiment difference from Example 1 is：Is sequentially stacked on the lower extraction electrode 3 One MOV chips 4¹, the first metallic gasket 5¹, three pole GDT6¹, the second metallic gasket 5², the 2nd MOV chips 4², upper extraction electrode 7, I.e.：The middle extraction electrode 5 is replaced with into circular or rectangular metal pad 5¹With 5², and the three pole GDT6¹Using with centre The three pole gas-discharge tubes comprising lower discharge tube 61 and upper discharge tube 62 of electrode 63, and retain the MOV cores in embodiment 1 Piece 4, the first MOV chips 4 being named as in the present embodiment¹, then the three pole GDT61 with it is described on extraction electrode 7 In set up one and the first MOV chips 4¹Identical MOV chips, it is named as the 2nd MOV chips 4².Under now described Box body 1 and upper cartridge body it is 2-in-1 into the containing of cylindrical accommodation space 93 have lower extraction electrode 3, the first MOV chips 4¹, the first metal Pad 5¹, three pole GDT6¹, the second metallic gasket 5², the 2nd MOV chips 4², upper extraction electrode 7, the three pole GDT6¹Including under Discharge tube 61, target 63, upper discharge tube 62, the target 63 lead to straight plate shape leading foot 631.In this embodiment The three pole GDT6¹Also the stacked compositions of two bipolar GDT can be used.

If in a kind of compound MOV access circuits for inserting GDT that the present embodiment is provided, the middle extraction electricity is eliminated Pole 5, because it is replaced for circular or rectangular metal pad 5¹With 5²(no extraction effect), three pole GDT6 of use¹, wherein Between the straight plate shape leading foot 631 of electrode 63 and the convexo-plane leading foot 31 of the lower extraction electrode and the upper extraction electrode 7 Chip bending shape leading foot 71 is used to connect circuit, as shown in Figure 4.

Embodiment 3

As shown in figure 5, the present embodiment difference from Example 1 is：In the MOV chips 4 and the bipolar GDT6 In the case that contact surface is smooth, the middle extraction electrode 5 can be also omitted, i.e., is sequentially stacked MOV cores on the lower extraction electrode 3 Piece 4, bipolar GDT6, upper extraction electrode 7.I.e.：The middle extraction electrode 5 is removed, now the lower box body 1 and upper cartridge body are 2-in-1 Into the containing of cylindrical accommodation space 93 have lower extraction electrode 3, MOV chips 4, bipolar GDT6, upper extraction electrode 7.If by this reality In a kind of compound MOV access circuits for inserting GDT for applying example offer, because compared with Example 1, eliminating the middle extraction Electrode 5, as shown in Figure 6.

Embodiment 4

As shown in fig. 7, the present embodiment difference from Example 2 is：In the MOV chips 4 and the three pole GDT61 In the case that contact surface is smooth, first metallic gasket 5 can be also omitted¹With the second metallic gasket 5², i.e., in the lower extraction electricity The first MOV chips 4 are sequentially stacked on pole 3¹, three pole GDT6¹, the 2nd MOV chips 4², upper extraction electrode 7, i.e.,：Remove described One metallic gasket 5¹With the second metallic gasket 5².Now the lower box body 1 and upper cartridge body it is 2-in-1 into cylindrical accommodation space 93 hold Receiving has lower extraction electrode 3, the first MOV chips 4¹, three pole GDT6¹, the 2nd MOV chips 4², upper extraction electrode 7.Institute in this embodiment State three pole GDT6¹Also the stacked compositions of two bipolar GDT can be used.

If in a kind of compound MOV access circuits for inserting GDT that embodiment is originally provided, because omit described first Metallic gasket 5¹With the second metallic gasket 5²It is not brought out originally, so consistent with Fig. 4 of embodiment 2.

Above-described embodiment is the preferable embodiment of the utility model, but embodiment of the present utility model is not by above-mentioned The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace Generation, combination, simplify, should be equivalent substitute mode, be included within the scope of protection of the utility model.

Claims

1. a kind of compound MOV for inserting GDT, provided with upper cartridge body, lower box body, it is characterised in that be additionally provided with the embedded lower box Internal lower extraction electrode, be sequentially stacked on the lower extraction electrode MOV chips, middle extraction electrode, GDT, on extraction electrode, Or MOV chips, GDT, upper extraction electrode are sequentially stacked, or it is sequentially stacked the first MOV chips, middle extraction electrode, GDT, the 2nd MOV Chip, upper extraction electrode, or the first MOV chips, GDT, the 2nd MOV chips, upper extraction electrode are sequentially stacked, or be sequentially stacked MOV chips, the first metallic gasket, GDT, the second metallic gasket, upper extraction electrode, or it is sequentially stacked the first MOV chips, the first gold medal Belong to pad, GDT, the second metallic gasket, the 2nd MOV chips, upper extraction electrode；The upper cartridge body covers the extraction electrode on described On, it is fastened as a whole by fastener and the lower box body, and to the lower extraction electrode, GDT, upper extraction electrode, it is and described MOV chips or the first MOV chips, the 2nd MOV chips, with/non-middle the extraction electrode or first metallic gasket, Two metallic gaskets, carry out pressing fixation.

A kind of 2. compound MOV for inserting GDT as claimed in claim 1, it is characterised in that：The upper cartridge body and the lower box The corner of body is equipped with boss, and ventilating opening is formed between the adjacent boss；The boss is provided with upper in its height direction Lower box body corresponding through hole or screwed hole, the fastener by the through hole or screwed hole by the upper cartridge body with it is described under Box body is fastened as a whole；The boss is in arc surface towards the one side of box body center, and the arc surface surrounds cylindrical accommodation space, The rounded bottom surface of the cylindrical accommodation space is provided with salient point or convex line；The bottom surface of the cylindrical accommodation space of the lower box body is also Provided with electrode fairlead.

A kind of 3. compound MOV for inserting GDT as claimed in claim 2, it is characterised in that：It is made of insulation fire proofing material The upper cartridge body, lower box body be shape identical circle upper cartridge body, circular lower box body or rectangle upper cartridge body, rectangle lower box body, Wherein, in the rectangle upper cartridge body and rectangle lower box body, the boss is triangle boss.

A kind of 4. compound MOV for inserting GDT as claimed in claim 2, it is characterised in that：The upper cartridge body and the lower box Body contour structure each other；The cylindrical accommodation space of the upper cartridge body and the common containing of cylindrical accommodation space of the lower box body The lower extraction electrode, GDT, upper extraction electrode, and the MOV chips or the first MOV chips, the 2nd MOV chips, with/ The non-middle extraction electrode or first metallic gasket, the second metallic gasket.

A kind of 5. compound MOV for inserting GDT as claimed in claim 4, it is characterised in that：Increase the institute of contour structure each other State the boss height of lower box body, reduce the boss height of the upper cartridge body of contour structure each other, the upper cartridge body with it is described under Box body i.e. not contour structure each other；When the boss height of the lower box body increases to the lower extraction electrode, GDT, upper extraction electricity Pole, and the MOV chips or the first MOV chips, the 2nd MOV chips, with/non-middle the extraction electrode or first gold medal Belong to pad, the second metallic gasket, when can all be installed in the cylindrical accommodation space of the lower box body, the upper cartridge body is set The cover plate for being zero for boss height, four angles of the cover plate are provided with corresponding with the through hole or screwed hole of the lower box body lead to The cover plate and the lower box body are fastened as a whole by hole or screwed hole, the fastener.

A kind of 6. compound MOV for inserting GDT as claimed in claim 1, it is characterised in that：The GDT using two pole GDT or Three pole GDT；The two pole GDT is provided with lower sparking electrode and upper sparking electrode, and the three pole GDT is provided with lower sparking electrode, centre Electrode and upper sparking electrode.

A kind of 7. compound MOV for inserting GDT as claimed in claim 1, it is characterised in that：The lower extraction electrode is in plane Upper axial lead has convexo-plane leading foot or vertical piece shape leading foot, and the middle extraction electrode, upper extraction electrode, target are circle Shape structure or rectangular configuration, the middle extraction electrode, upper extraction electrode and target are radially drawn straight plate shape and drawn in the plane Go out pin or chip bending shape leading foot.

A kind of 8. compound MOV for inserting GDT as claimed in claim 1, it is characterised in that：The MOV chips, the first MOV Chip, the plane electrode of the 2nd MOV chips are made of inferior alloy, and its periphery is coated with damp-proof layer, is installed on anti-side sudden strain of a muscle Set.

A kind of 9. compound MOV for inserting GDT as claimed in claim 1, it is characterised in that：The fastener using metal or Nonmetallic rivet or screw.