CN207651440U - A kind of safety disengaging device of MOV module temperatures alloy - Google Patents
A kind of safety disengaging device of MOV module temperatures alloy Download PDFInfo
- Publication number
- CN207651440U CN207651440U CN201721338078.XU CN201721338078U CN207651440U CN 207651440 U CN207651440 U CN 207651440U CN 201721338078 U CN201721338078 U CN 201721338078U CN 207651440 U CN207651440 U CN 207651440U
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- mov
- cutter
- temperature alloy
- temperature
- spring
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Abstract
The utility model is related to electronic safety protection engineering device technique fields, a kind of safety disengaging device of MOV module temperatures alloy is specifically disclosed, the MOV modules being equipped with include MOV chips, are detached from chamber, temperature alloy piece, cutter, spring, MOV module extraction electrodes.A kind of safety disengaging device of MOV module temperatures alloy provided by the utility model, the MOV chips leading foot, temperature pad (low-temperature alloy), pressure-sensitive module pin-outs arc connection procedure of the prior art are changed to temperature alloy piece to connect with MOV module extraction electrodes, temperature slippages are reduced, improves and is detached from reliability；Temperature alloy piece is directly connect with MOV chips, and heating surface area is increased and is heated directly, reduces temperature slippages, is improved and is detached from reliability and accuracy；Flat temperature alloy piece is more conducive to pulse current by (Kelvin effect) and reduces residual voltage, therefore the present apparatus has the double protection functions of temperature protection and pulse current overload protection.
Description
Technical field
The utility model is related to electronic safety protection engineering device technique field more particularly to a kind of MOV module temperatures alloys
Safety disengaging device.
Background technology
The existing pressure-sensitive module of votage limit type (or SPD Surge Protectors) has special nonlinear current-voltage, uses
In once be abnormal situation, for example meet with lightning stroke, the interference of electromagnetic field, power switch frequent movement, power system failure make
Voltage spikes on circuit are obtained, conducting area is entered more than the conducting voltage of its piezoresistor.At this point, electric current (I) and voltage (V)
In non-linear relation, commonly referred to as nonlinear factor (Nonlinearity Parameter), value is up to tens of.At this point,
The impedance of its piezoresistor can be lower, and resistance value is equivalent to several ohm of zero, and overvoltage is allowed to form burst current and flow out, by
With the electronic product or expensive component for protecting it to connect.
In the prior art, to prevent the pressure-sensitive module damage of votage limit type from causing power supply short circuit, often it is equipped with safe escape
Device is connected into Thermal protection between two metal leading foots (MOV chips leading foot and pressure-sensitive module pin-outs arc) with eutectic welding soldering
Point (low-temperature alloy), temperature dependent increases MOV chip leading foots and leads thermal property, to melt the low-temperature alloy of Thermal protection point, then
Pad is pushed open by force using spring so that MOV chip leading foots are disconnected, to achieve the purpose that be detached from circuit.
In the prior art, the connection structure of the MOV chips leading foot, temperature pad, pressure-sensitive module pin-outs arc of use,
Long, multiple material welding that there are temperature transmittance process, temperature loss is big, MOV chips are detached from the process of pressure-sensitive module pin-outs arc not
It is enough accurate and sensitive, also without accurately pulse overcurrent protection the shortcomings that.
Utility model content
The technical issues of the utility model provides a kind of safety disengaging device of MOV module temperatures alloy, solution is, existing
MOV chips leading foot, low temperature pad, have Thermal protection pressure-sensitive module pin-outs arc connection structure, temperature transmittance process
Long, multiple material welding, temperature loss is big, and the process that MOV chips are detached from pressure-sensitive module pin-outs arc is not accurate enough and sensitive.
In order to solve the above technical problems, the utility model provides a kind of safety disengaging device of MOV module temperatures alloy, if
The MOV modules having include MOV chips, are detached from chamber, temperature alloy piece, cutter, spring, MOV module extraction electrodes；
The disengaging chamber includes wall and bottom, and the bottom is equipped with and the temperature alloy piece, cutter, spring, MOV moulds
Extraction slot, cutter limited post, spring spud pile, the fixing threaded hole of group extraction electrode cooperation；It is fixed under the extraction slot
It is electrically connected the MOV chips of the temperature alloy piece；
The cutter is equipped with runs through slot and cutter mouth with what the temperature alloy piece coordinated, is additionally provided with and the cutter
Limited post, the spacing slotted eye of spring spud pile cooperation and fixed stake holes, are additionally provided with for after the temperature alloy piece is cut off
Cover the masking plane in the lead-out groove hole；
The MOV modules extraction electrode is equipped with crimping notch, is additionally provided with the through-hole for fastening；The temperature alloy piece
It is drawn from the extraction slot for being detached from chamber, it is described through slot on the cutter, pass through the crimping notch and institute
State the crimping of MOV module extraction electrodes；The fixing threaded hole of chamber is detached from described in the through-hole alignment of the MOV modules extraction electrode,
Use fastened by screw；The fixed stake holes on the cutter is packed into one of the spring, and the other end of the spring is fixed on
On the spring spud pile on the disengaging chamber.
Preferably, the temperature alloy piece is made of temperature alloy material, and fusing point is 110 DEG C~250 DEG C, and thickness is
0.05mm~3mm.
Preferably, the temperature alloy piece is made of temperature alloy material, and width dimensions are 0.5mm~30mm, or
Its width dimensions is determined that the sectional area is calculated by the operation relation of sectional area and pulse current density by sectional area.
Preferably, the temperature alloy piece is tinfoil paper.
Preferably, the cutter is rectangular configuration, adopts and is made from an insulative material.
Specifically, slot is run through described in being provided in the middle part of the cutter, the first edge of the cutter is equipped with and the spring
Spud pile corresponds to the fixed stake holes of installation, and the second edge of the cutter, third edge, the 4th edge are provided with the limit
Slot.
The utility model provides a kind of safety disengaging device of MOV module temperatures alloy, by the MOV chips of the prior art
Leading foot, temperature pad (low-temperature alloy), pressure-sensitive module pin-outs arc connection procedure are changed to temperature alloy piece and MOV modules are drawn
Electrode connects, and reduces temperature slippages, improves and is detached from reliability；
Temperature alloy piece is directly connect with MOV chips, and heating surface area is increased and is heated directly, is reduced temperature and is transmitted damage
Consumption improves and is detached from reliability and accuracy；
Temperature alloy piece by thermal softening to a certain degree when, due to the pulling force effect of spring, cutter cuts off temperature alloy piece,
And the insulation characterisitic of itself is utilized, cover temperature alloy piece breaking part in time and draws slot；
Easy cutting out property based on temperature alloy piece, can be according to MOV chips through-current capability (pulse current and sectional area relationship)
It is accurately cut out suitable cross-sectional area, excessive pulse current can also block, and provide pulse current overload tripping protection, prevent
Explosion；Flat temperature alloy piece is more conducive to pulse current by (Kelvin effect) and reduces residual voltage, therefore the utility model
The safety disengaging device of the MOV modules of offer has the double protection functions of temperature protection and pulse current overload protection；
The utility model uses conventional material, and simply, assembling process does not use any hot-working, keeps away for of low cost, making
Exempt from chip heat damage, using fastened by screw, is convenient for mechanization production；
MOV modules in the utility model can be widely used in voltage-limit type SPD, TMOV (Thermal protection type varistor),
It is with good economic efficiency on the products such as TPMOV (the anti-surge device with thermel protection device).
Description of the drawings
Fig. 1 is that a kind of structure of the safety disengaging device for MOV module temperatures alloy that the utility model embodiment provides is quick-fried
Fried figure.
Specific implementation mode
The embodiment of the utility model is specifically illustrated below in conjunction with the accompanying drawings, and embodiment is only given in order to illustrate mesh
, it can not be interpreted as the restriction to the utility model, including attached drawing is only for reference and illustrates to use, do not constituted new to this practicality
The limitation of type scope of patent protection, because on the basis of not departing from the spirit and scope of the utility model, it can be to the utility model
Carry out many changes.
A kind of Structure explosion diagram of the safety disengaging device for MOV module temperatures alloy that the utility model embodiment provides,
As shown in Figure 1, in the present embodiment, a kind of safety disengaging device of MOV module temperatures alloy is equipped with the MOV modules, described
MOV modules include MOV chips A (shielded, to be not shown in figure), are detached from chamber 1, temperature alloy piece 2, cutter 3, spring 4, MOV moulds
Group extraction electrode 5；
The disengaging chamber 1 includes bottom 11 and wall 12, the bottom 11 be equipped with the temperature alloy piece 2, cutter 3,
Spring 4, MOV modules extraction electrode 5 coordinate extraction slot 11-1, cutter limited post 11-21,11-22,11-23 (it is shielded,
Be not shown in figure), spring spud pile 11-3, fixing threaded hole 11-41,11-42 (shielded, to be not shown in figure)；The lead-out groove
The MOV chips A for being electrically connected the temperature alloy piece 2 is fixed under the 11-1 of hole；
The cutter 3 be equipped with the temperature alloy piece 2 coordinate run through slot 3-1 and cutter mouth 3-2, be additionally provided with and
Spacing slotted eye 3-31,3-32,3-33 of described cutter limited post 11-21,11-22,11-23 and spring spud pile 11-3 cooperations and
Fixed stake holes 3-4, is additionally provided with the masking plane for covering the lead-out groove hole 11-1 after the temperature alloy piece 2 is cut off
3-5；
The MOV modules extraction electrode 5 is equipped with the crimping notch 5-1 for crimping the temperature alloy piece 2, also sets
It is useful for the through-hole 5-21 and 5-22 that are fastened on the disengaging chamber 1；
The temperature alloy piece 2 is drawn from the extraction slot 11-1 for being detached from chamber 1, is passed through described on the cutter 3
Through slot 3-1, crimped with the MOV modules extraction electrode 5 by the crimping notch 5-1；The MOV modules extraction electrode
5 through-hole 5-21 and 5-22 is directed at the fixing threaded hole 11-41 and 11-42 (shielded, to be not shown in figure) for being detached from chamber 1, uses
6 (not shown) of screw fastens；Fixation stake holes 3-4 on the cutter 3 is packed into a 4-1 of the spring 4, the spring
4 other end is fixed on the spring spud pile 11-3 on the disengaging chamber 1.
Preferably, the temperature alloy piece 2 is made of temperature alloy material such as tinfoil paper, and fusing point is 110 DEG C~250 DEG C,
Thickness is 0.05mm~3mm, and width dimensions are generally 0.5mm~30mm or its width dimensions is determined by sectional area, described section
Area is calculated by the operation relation of sectional area and pulse current density.
Preferably, the cutter 3 is rectangular configuration, adopts and is made from an insulative material.3 middle part of the cutter is provided with described run through
Slot 3-1, the first edge of the cutter 3 are equipped with the fixed stake holes 3-4 of installation corresponding with the spring spud pile 11-3,
The second edge of the cutter 3, third edge, the 4th edge are provided with the spacing slotted eye 3-3, and the spacing slotted eye 3-3 includes
Positioned at the second edge of the cutter 3, third edge, the first spacing slotted eye 3-31 at the 4th edge, the second spacing slotted eye 3-32
With third spacing slotted eye 3-33, limited with the first spacing slotted eye 3-31, the second spacing slotted eye 3-32 and the third
Correspondingly, the cutter limited post 11-2 includes the first cutter limited post 11-21, the second cutter limited post 11- to slot 3-33
22 and third cutter limited post 11-23 (shielded, to be not shown in figure).
When abnormal generation, votage limit type MOV chips A fevers, heat is directly absorbed by temperature alloy piece 2, when to set temperature
Near, temperature alloy piece 2 starts to soften, and the pulling force of spring 4 overcomes the tension after temperature alloy piece 2 softens, and cutter 3 starts
Mobile, cutter mouth 3-2 cutting temperatures alloy sheet 2, after cutting, the movement playback of cutter 3, the masking plane 3-5 of cutter 3 is just
Masking is detached from the extraction slot 11-1 on chamber 1 so that without space is coupled between MOV modules extraction electrode 5 and MOV chips A, reaches
The purpose of safe escape.
The utility model provides a kind of safety disengaging device of MOV module temperatures alloy, by the MOV chips of the prior art
Leading foot, temperature pad (low-temperature alloy), pressure-sensitive module pin-outs arc connection procedure are changed to temperature alloy piece 2 and MOV modules and draw
Go out the connection of electrode 5, reduce temperature slippages, improves and be detached from reliability；
Temperature alloy piece 2 is directly connect with MOV chips A, and heating surface area is increased and is heated directly, is reduced temperature and is transmitted damage
Consumption improves and is detached from reliability and accuracy；
Temperature alloy piece 2 by thermal softening to a certain degree when, due to the pulling force effect of spring 4, cutter 3 cuts off temperature alloy
Piece 2, and utilize the insulation characterisitic of itself, cover 2 breaking part of temperature alloy piece in time and draw slot 11-1；
Easy cutting out property based on temperature alloy piece 2, can be according to through-current capability (pulse current and the sectional area pass of MOV chips
System) it is accurately cut out suitable cross-sectional area, excessive pulse current can also block, and provide pulse current overload tripping protection,
It prevents from exploding；Flat temperature alloy piece 2 is more conducive to pulse current by (Kelvin effect) and reduces residual voltage, therefore this reality
There is the duplicate protection work(of temperature protection and pulse current overload protection with the safety disengaging device of the MOV module As of novel offer
Energy；
The utility model uses conventional material, and simply, assembling process does not use any hot-working, keeps away for of low cost, making
Exempt from chip heat damage, fastened using screw 6, is convenient for mechanization production；
MOV modules in the utility model can be widely used on the products such as voltage-limit type SPD, TMOV, TPMOV, have good
Good economic benefit.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model is not by above-mentioned
The limitation of embodiment, under other any Spirit Essences and principle without departing from the utility model made by change, modify, replace
In generation, simplifies combination, should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (6)
1. a kind of safety disengaging device of MOV module temperatures alloy, which is characterized in that the MOV modules being equipped with include MOV cores
Piece is detached from chamber, temperature alloy piece, cutter, spring, MOV module extraction electrodes；
The disengaging chamber includes wall and bottom, and the bottom is equipped with draws with the temperature alloy piece, cutter, spring, MOV modules
Go out extraction slot, cutter limited post, spring spud pile, the fixing threaded hole of electrode cooperation；It is fixed under the extraction slot electrical
Connect the MOV chips of the temperature alloy piece；
The cutter is equipped with runs through slot and cutter mouth with what the temperature alloy piece coordinated, is additionally provided with and is limited with the cutter
Column, the spacing slotted eye of spring spud pile cooperation and fixed stake holes, are additionally provided with for being covered after the temperature alloy piece is cut off
The masking plane for drawing slot；
The MOV modules extraction electrode is equipped with crimping notch, is additionally provided with the through-hole for fastening；The temperature alloy piece is from institute
The extraction slot extraction for being detached from chamber is stated, it is described through slot on the cutter, pass through the crimping notch and the MOV
Module extraction electrode crimps；It is detached from the fixing threaded hole of chamber described in the through-hole alignment of the MOV modules extraction electrode, uses screw
Fastening；The fixed stake holes on the cutter is packed into one of the spring, and the other end of the spring is fixed on described take off
From on the spring spud pile on chamber.
2. a kind of safety disengaging device of MOV module temperatures alloy as described in claim 1, it is characterised in that：The temperature
Alloy sheet is made of temperature alloy material, and fusing point is 110 DEG C~250 DEG C, and thickness is 0.05mm~3mm.
3. a kind of safety disengaging device of MOV module temperatures alloy as described in claim 1, it is characterised in that：The temperature
Alloy sheet is made of temperature alloy material, and width dimensions are that 0.5mm~30mm or its width dimensions are determined by sectional area,
The sectional area is calculated by the operation relation of sectional area and pulse current density.
4. a kind of safety disengaging device of MOV module temperatures alloy as claimed in claim 2 or claim 3, it is characterised in that：The temperature
Degree alloy sheet is tinfoil paper.
5. a kind of safety disengaging device of MOV module temperatures alloy as described in claim 1, it is characterised in that：The cutter
For rectangular configuration, adopts and be made from an insulative material.
6. a kind of safety disengaging device of MOV module temperatures alloy as claimed in claim 5, it is characterised in that：The cutter
Middle part is provided with described through slot, the fixation of the first edge equipped with installation corresponding with the spring spud pile of the cutter
Stake holes, the second edge of the cutter, third edge, the 4th edge are provided with the spacing slotted eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338078.XU CN207651440U (en) | 2017-10-18 | 2017-10-18 | A kind of safety disengaging device of MOV module temperatures alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338078.XU CN207651440U (en) | 2017-10-18 | 2017-10-18 | A kind of safety disengaging device of MOV module temperatures alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207651440U true CN207651440U (en) | 2018-07-24 |
Family
ID=62883308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721338078.XU Withdrawn - After Issue CN207651440U (en) | 2017-10-18 | 2017-10-18 | A kind of safety disengaging device of MOV module temperatures alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207651440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578969A (en) * | 2017-10-18 | 2018-01-12 | 隆科电子(惠阳)有限公司 | A kind of safety disengaging device of MOV module temperatures alloy |
-
2017
- 2017-10-18 CN CN201721338078.XU patent/CN207651440U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578969A (en) * | 2017-10-18 | 2018-01-12 | 隆科电子(惠阳)有限公司 | A kind of safety disengaging device of MOV module temperatures alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180724 Effective date of abandoning: 20190802 |