CN207458797U - A kind of three-phase extinguisher - Google Patents
A kind of three-phase extinguisher Download PDFInfo
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- CN207458797U CN207458797U CN201721410381.6U CN201721410381U CN207458797U CN 207458797 U CN207458797 U CN 207458797U CN 201721410381 U CN201721410381 U CN 201721410381U CN 207458797 U CN207458797 U CN 207458797U
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- base plate
- capacitance
- installation base
- conductive
- arc extinguishing
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Abstract
The utility model discloses a kind of three-phase extinguishers, including installation base plate, installation base plate is equipped with multiple capacitance-resistance arc extinguishing units, the side of installation base plate is equipped with quantity conductive cutting corresponding with capacitance-resistance arc extinguishing unit, the one end of conductive cutting away from installation base plate offers card slot, there is corresponding conductive layer on the surface of each conduction cutting, and multiple conductive layers are extended on installation base plate, and multiple conduction cuttings are in parallel two-by-two by multiple conductive layers and multiple capacitance-resistance arc extinguishing units；Installation base plate is directly plugged on by conductive cutting in contactor output terminal, conductive cutting is compressed through card slot and pass through conductive layer by the fixing bolt in contactor output terminal to be electrically connected with capacitance-resistance arc extinguishing unit, so as to achieve the purpose that absorption operation overvoltage, three-phase extinguisher is mounted directly on the contactor, it is not take up additional installation space, contactor and three-phase extinguisher are electrically connected without additional conducting wire is used simultaneously, installation steps are few, installation speed is fast, convenient and practical.
Description
Technical field
The utility model is related to contactor arc control device, more specifically, it relates to a kind of three-phase extinguisher.
Background technology
In electrotechnics because can fast shut-off exchange with direct current major loop and can be frequently switched on and high current control
（Up to 800A）The device of circuit is done in order to control so often applying to motor to setting standby ﹑ electric heating as ﹐ also is used as control work factory
The electrical loads such as device ﹑ machine-tools and various kinds electric power unit, contactor can not only be switched on and off circuit, but also with low electricity
Press release guard effect.Contactor control capability is big, is in automatic control system suitable for frequent operation and far distance controlled
One of critical elements.The switching overvoltage of generation is cut-off to contactor, dedicated protection equipment is capacitance-resistance extinguisher.It is by height
Piezoelectric capsule and special noninductive linear resistance series connection are followed by a kind of effective equipment of absorption overvoltage of entry loop
But existing capacitance-resistance extinguisher is external lead, by conductor in parallel in contactor output, and is installed
In the installation panel where contactor, it is also contemplated that security protection position and fixed form, inconvenient to use.
Utility model content
It is external lead for existing capacitance-resistance extinguisher, by conductor in parallel in contactor output, and is mounted on
In installation panel where contactor, it is also contemplated that security protection position and fixed form, it is inconvenient to use the technical issues of, this practicality
A kind of new three-phase extinguisher of offer, has the advantages that installation speed block, occupies little space.
To achieve the above object, the utility model provides following technical solution：
A kind of three-phase extinguisher including installation base plate, is fixedly connected with multiple capacitance-resistance arc extinguishing units on the installation base plate,
It is corresponding with the capacitance-resistance arc extinguishing unit for being inserted into contactor output terminal that the side of the installation base plate is fixedly connected with quantity
Conductive cutting, the described conduction one end of cutting away from the installation base plate offers card slot, the table of each conductive cutting
Face is fixedly connected with corresponding conductive layer, and multiple conductive layers are extended on the installation base plate, multiple conductive cuttings
It is in parallel two-by-two by multiple conductive layers and multiple capacitance-resistance arc extinguishing units.
Through the above technical solutions, installation base plate is directly plugged on by conductive cutting in contactor output terminal, contactor
Conductive cutting is compressed through card slot and pass through conductive layer by the fixing bolt in output terminal to be electrically connected with capacitance-resistance arc extinguishing unit, so as to
Achieve the purpose that absorption operation overvoltage, three-phase extinguisher, which is mounted directly, on the contactor, is not take up additional installation space, together
When be electrically connected contactor and three-phase extinguisher without using additional conducting wire, installation steps are few, installation speed is fast, facilitate reality
With.
Further, the capacitance-resistance arc extinguishing unit includes first resistor and the first capacitance, one end of the first resistor with
The first capacitance electrical connection, the other end are electrically connected by the conductive layer with the conductive cutting, first capacitance
One end is electrically connected with the first resistor, and the other end is electrically connected by another conductive layer with another conductive cutting.
Through the above technical solutions, it can effectively inhibit switching overvoltage using rc absorber as capacitance-resistance arc extinguishing unit
Moment vibrates and high frequency electric, and the waveform of overvoltage is made to slow down, and steepness and amplitude reduce, and along with the damping action of resistance, make
The higher-order of oscillation is decayed rapidly；It is all highly effective to which kind of load equipment, it is that electrical equipment is made to avoid making because of switching overvoltage
Into insulation damages, ensure the essential preferable overvoltage protection of security appliance operation.
Further, the first resistor is set with first capacitance interval.
Through the above technical solutions, first resistor can will give off heat when inhibiting switching overvoltage, and it is spaced
First resistor can effectively avoid the concentration of heat with the first capacitance, so as to prevent that local pyrexia is excessive on three-phase extinguisher, avoids
Influence its service life.
Further, multiple capacitance-resistance arc extinguishing units are fixedly connected on the same side of the installation base plate.
Through the above technical solutions, the first resistor in capacitance-resistance arc extinguishing unit is respectively provided with certain thickness with the first capacitance,
And these components are arranged on to the thickness of the same side of installation base plate then energy minimization three-phase arc extinguishing unit, it can be more square
Just install on the contactor.
Further, the card slot extends the conductive cutting along the direction away from the installation base plate.
Through the above technical solutions, conductive cutting can be directly plugged in contactor output terminal, need not be unscrewed in insertion
Fixing bolt in contactor, the card slot with opening can be directly fastened on fixing bolt, convenient and efficient.
Further, the card slot is provided with clamping rounded corner close to one end of the installation base plate.
Through the above technical solutions, clamping rounded corner can make the inner wall of card slot be bonded the fixing bolt in contactor, from
And the crimping nut allowed on fixing bolt can crimp contact area with conductive cutting with maximum, and then conductive cutting is applied
Add maximum compression stiction, improve the tightness of three-phase extinguisher installation on the contactor.
Further, lead via is further opened on the conductive layer, extraction wire is electrically connected in the lead via.
Through the above technical solutions, extraction wire is mounted on lead via to draw the output terminal of contactor, so as to nothing
Three-phase extinguisher and extraction wire need to be mounted in contactor output terminal together, that is, optimize the mounting ring of three-phase extinguisher
Border can also facilitate the arrangement of circuit in the circuit of contactor place.
Further, the lead via is located on the installation base plate.
Through the above technical solutions, the structure that conductive cutting can be reduced if lead via is arranged in conductive cutting is strong
Degree, easily snaps off conductive cutting, reduces the service life of three-phase extinguisher；And lead via is arranged on the big installation of area
On substrate then there is no structural strength it is insufficient the problem of.
Further, the conductive cutting and the quantity of the capacitance-resistance arc extinguishing unit are disposed as three.
Through the above technical solutions, conductive cutting and the quantity of capacitance-resistance arc extinguishing unit and the number of phases pair of contactor access power supply
Should, general contactor is used for three-phase circuit, answers this that quantity of conductive cutting and capacitance-resistance arc extinguishing unit is set to three.
Further, the surface of the installation base plate and the capacitance-resistance arc extinguishing unit is fixedly connected with insulating protective layer.
Through the above technical solutions, insulating protective layer is then isolated from the outside world by the circuit on installation base plate and its surface, i.e.,
Circuit is protected to avoid being subject to impurity pollution, beneficial to the service life of extension three-phase extinguisher, and is avoided that staff contacts
Electric shock accidents occurs after to three-phase extinguisher.
Compared with prior art, the beneficial effects of the utility model are：
(1) by setting the conductive cutting of insertion contactor output terminal on installation base plate, installation base plate is inserted by conduction
Item is directly plugged in contactor output terminal, and conductive cutting is compressed and led to through card slot by the fixing bolt in contactor output terminal
It crosses conductive layer to be electrically connected with capacitance-resistance arc extinguishing unit, so as to achieve the purpose that absorption operation overvoltage, three-phase extinguisher is mounted directly
On the contactor, it is not take up additional installation space, while without additional conducting wire is used to be electrically connected contactor and three-phase
Extinguisher, installation steps are few, installation speed is fast, convenient and practical；
(2) by the way that card slot is made to extend conductive cutting along the direction away from installation base plate, conductive cutting can be directly plugged on
In contactor output terminal, the fixing bolt in contactor need not be unscrewed in insertion, the card slot with opening can be directly fastened on
It is convenient and efficient on fixing bolt；
(3) by opening up leaded via on the electrically conductive, extraction wire, extraction wire peace are electrically connected in lead via
To draw the output terminal of contactor on lead via, connect without three-phase extinguisher is mounted on together with extraction wire
In tentaculum output terminal, that is, the installation environment of three-phase extinguisher is optimized, the arrangement of circuit in circuit where also facilitating contactor.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model three-phase extinguisher embodiment；
Fig. 2 is the overall structure diagram of the utility model three-phase extinguisher embodiment tape insulation protective layer.
Reference numeral：1st, installation base plate；2nd, capacitance-resistance arc extinguishing unit；3rd, first resistor；4th, the first capacitance；5th, first draw
End；6th, the second exit；7th, conductive cutting；8th, card slot；9th, it is clamped rounded corner；10th, conductive layer；11st, lead via；12nd, insulate
Protective layer.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
A kind of three-phase extinguisher, as shown in Figure 1, the installation base plate 1 including general square shape, installation base plate 1 is using based on glass
The printed circuit board (PCB) of glass Fiber Materials is welded with multiple capacitance-resistance arc extinguishing units 2 on installation base plate 1.Three-phase extinguisher is preferably applied
In three-phase circuit, therefore preferably three capacitance-resistance arc extinguishing units 2.Capacitance-resistance arc extinguishing unit 2 include the first resistor 3 that is serially connected with
First capacitance 4, one end of first resistor 3 are electrically connected with the first capacitance 4, and it is the first exit that the other end, which draws installation base plate 1,
5, one end of the first capacitance 4 is electrically connected with first resistor 3, and the other end also draws installation base plate 1 as the second exit 6.It is multiple
Capacitance-resistance arc extinguishing unit 2 is fixedly connected on the same side of installation base plate 1, and first resistor 3 is set with the first capacitance 4 for interval
It puts.3 and first capacitance 4 of first resistor in capacitance-resistance arc extinguishing unit 2 is respectively provided with certain thickness, and these components are arranged on
The thickness of the same side of installation base plate 1 then energy minimization three-phase arc extinguishing unit, can more easily install on the contactor.
First resistor 3 can will give off heat when inhibiting switching overvoltage, and spaced first resistor 3 can have with the first capacitance 4
Effect avoids the concentration of heat, so as to prevent that local pyrexia is excessive on three-phase extinguisher, avoids influencing its service life.Use capacitance-resistance
Absorber can effectively inhibit moment vibration and the high frequency electric of switching overvoltage as capacitance-resistance arc extinguishing unit 2, make the ripple of overvoltage
Deformation is delayed, and steepness and amplitude reduce, and along with the damping action of resistance, the higher-order of oscillation are made to decay rapidly.No matter to which kind of load
Equipment is all highly effective, is that electrical equipment is made to avoid the insulation damages caused by switching overvoltage, ensures that security appliance operation must not
The preferable overvoltage protection that can lack.
The side of installation base plate 1 has been wholely set quantity conductive cutting 7 corresponding with capacitance-resistance arc extinguishing unit 2, three conductions
For being inserted into contactor output terminal, the conductive one end of cutting 7 away from installation base plate 1 offers card slot 8 for cutting 7, and card slot 8 is along separate
Conductive cutting 7 is extended in the direction of installation base plate 1, and card slot 8 is provided with clamping rounded corner 9 close to one end of installation base plate 1.Each
The surface of conductive cutting 7 is laid with corresponding conductive layer 10, and conductive layer 10 is formed for the copper-clad on Etched Printed Circuit plate,
It is not electrically connected between conductive layer 10 corresponding to each conduction cutting 7.Three conductive layers 10 are extended on installation base plate 1,
Three conductive cuttings 7 are in parallel two-by-two by three conductive layers 10 and three capacitance-resistance arc extinguishing units 2.First exit 5 passes through conduction
Layer 10 is electrically connected with conductive cutting 7, and the second exit 6 is electrically connected by another conductive layer 10 with another conductive cutting 7.Such as Fig. 2
It is shown, lead via 11 is further opened on conductive layer 10, lead via 11 is located on installation base plate 1, is electrically connected in lead via 11
It is connected to extraction wire.The structural strength of conductive cutting 7 can be reduced if lead via 11 is arranged in conductive cutting 7, makes to lead
Electric mortiser item 7 easily snaps off, and reduces the service life of three-phase extinguisher；And lead via 11 is arranged on the big installation base plate of area
On 1 then there is no structural strength it is insufficient the problem of.Extraction wire is mounted on lead via 11 to draw the output of contactor
End without three-phase extinguisher and extraction wire are mounted in contactor output terminal together, that is, optimizes three-phase extinguisher
Installation environment, can also facilitate the arrangement of circuit in circuit where contactor.
Installation base plate 1 is directly plugged on by conductive cutting 7 in contactor output terminal, the fixation spiral shell in contactor output terminal
Conductive cutting 7 is compressed through card slot 8 and passes through conductive layer 10 and is electrically connected with capacitance-resistance arc extinguishing unit 2 by bolt, absorbs behaviour so as to reach
Make the purpose of overvoltage.Clamping rounded corner 9 can make the inner wall of card slot 8 be bonded the fixing bolt in contactor, so as to allow fixation
Crimping nut on bolt can crimp contact area with conductive cutting 7 with maximum, then apply maximum to conductive cutting 7
Compression stiction, improve the tightness of three-phase extinguisher installation on the contactor.Conductive cutting 7, which can be directly plugged on, to be connect
In tentaculum output terminal, the fixing bolt in contactor need not be unscrewed in insertion, the card slot 8 with opening can be directly fastened on admittedly
Determine on bolt, it is convenient and efficient.
Installation base plate 1 and the surface of capacitance-resistance arc extinguishing unit 2 are tightly sleeved or are adhesive with insulating protective layer 12, insulating protective layer
12 can be selected thermal shrinkable sleeve.Insulating protective layer 12 is then isolated from the outside world by the circuit of installation base plate 1 and its surface, that is, protects electricity
Road avoids being subject to impurity pollution, beneficial to the service life of extension three-phase extinguisher, and is avoided that staff touches three-phase and goes out
Electric shock accidents occurs after arc device.
When in use, installation base plate 1 is directly plugged on by conductive cutting 7 in contactor output terminal three-phase extinguisher, card
Slot 8 is fastened on the fixing bolt in contactor output terminal, and conductive cutting 7 is compressed and passed through through card slot 8 and led by fixing bolt
Electric layer 10 is electrically connected with capacitance-resistance arc extinguishing unit 2, and so as to achieve the purpose that absorption operation overvoltage, three-phase extinguisher is directly installed on
On contactor, additional installation space is not take up, while without additional conducting wire is used to go out to be electrically connected contactor with three-phase
Arc device, installation steps are few, installation speed is fast, convenient and practical.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of three-phase extinguisher, including installation base plate（1）, which is characterized in that the installation base plate（1）On be fixedly connected with it is more
A capacitance-resistance arc extinguishing unit（2）, the installation base plate（1）Side be fixedly connected with quantity and the capacitance-resistance arc extinguishing unit（2）It is right
That answers is used to be inserted into the conductive cutting of contactor output terminal（7）, the conduction cutting（7）Away from the installation base plate（1）One
End offers card slot（8）, each conductive cutting（7）Surface be fixedly connected with corresponding conductive layer（10）, it is multiple described
Conductive layer（10）Extend to the installation base plate（1）On, multiple conductive cuttings（7）Pass through multiple conductive layers（10）With
Multiple capacitance-resistance arc extinguishing units（2）It is in parallel two-by-two.
2. three-phase extinguisher according to claim 1, which is characterized in that the capacitance-resistance arc extinguishing unit（2）Including the first electricity
Resistance（3）With the first capacitance（4）, the first resistor（3）One end and first capacitance（4）Electrical connection, the other end pass through
The conductive layer（10）With the conductive cutting（7）Electrical connection, first capacitance（4）One end and the first resistor（3）
Electrical connection, the other end pass through another conductive layer（10）With another conductive cutting（7）Electrical connection.
3. three-phase extinguisher according to claim 2, which is characterized in that the first resistor（3）With first capacitance
（4）It is arranged at intervals.
4. three-phase extinguisher according to claim 3, which is characterized in that multiple capacitance-resistance arc extinguishing units（2）It is fixed to connect
It is connected on the installation base plate（1）Same side on.
5. three-phase extinguisher according to claim 1, which is characterized in that the card slot（8）Along away from the installation base plate
（1）Direction extend the conductive cutting（7）.
6. three-phase extinguisher according to claim 5, which is characterized in that the card slot（8）Close to the installation base plate（1）
One end be provided with clamping rounded corner（9）.
7. three-phase extinguisher according to claim 1, which is characterized in that the conductive layer（10）On be further opened with lead mistake
Hole（11）, the lead via（11）Inside it is electrically connected with extraction wire.
8. three-phase extinguisher according to claim 7, which is characterized in that the lead via（11）Positioned at the installation base
Plate（1）On.
9. three-phase extinguisher according to claim 8, which is characterized in that the conduction cutting（7）With the capacitance-resistance arc extinguishing
Unit（2）Quantity be disposed as three.
10. three-phase extinguisher according to claim 1, which is characterized in that the installation base plate（1）With the capacitance-resistance arc extinguishing
Unit（2）Surface be fixedly connected with insulating protective layer（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721410381.6U CN207458797U (en) | 2017-10-27 | 2017-10-27 | A kind of three-phase extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721410381.6U CN207458797U (en) | 2017-10-27 | 2017-10-27 | A kind of three-phase extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207458797U true CN207458797U (en) | 2018-06-05 |
Family
ID=62282148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721410381.6U Active CN207458797U (en) | 2017-10-27 | 2017-10-27 | A kind of three-phase extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207458797U (en) |
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2017
- 2017-10-27 CN CN201721410381.6U patent/CN207458797U/en active Active
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