CN207441567U - Vacuum arc-extinguishing chamber contact - Google Patents
Vacuum arc-extinguishing chamber contact Download PDFInfo
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- CN207441567U CN207441567U CN201721384503.9U CN201721384503U CN207441567U CN 207441567 U CN207441567 U CN 207441567U CN 201721384503 U CN201721384503 U CN 201721384503U CN 207441567 U CN207441567 U CN 207441567U
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- contact
- iron core
- cup
- extinguishing chamber
- vacuum arc
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 230000000694 effects Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 13
- 230000003068 static effect Effects 0.000 description 6
- 230000005291 magnetic effect Effects 0.000 description 5
- 239000003302 ferromagnetic material Substances 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a kind of vacuum arc-extinguishing chamber contact, belongs to electrical accessorie technical field.It, which is solved, stablizes the technical problems such as unstable in existing contact blade use.This vacuum arc-extinguishing chamber contact includes contact cup, contact blade, axial location in contact cup is provided with the support column for being used to support contact cup inner wall and contact blade, support column outer cover is equipped with coaxial iron core, support column both ends are both provided with the bulge loop of plate-like, bulge loop contradicts respectively with contact blade, contact cup inner wall, and iron core is located between bulge loop outer wall and contact cup madial wall.The utility model compares more original structure, can increase support column and contact cup, the bearing area of contact blade, can so disperse the transmission of the contact on contact blade, ensure that the structural stability of contact blade.
Description
Technical field
The utility model belongs to electrical accessorie field, is related to a kind of breaker, is specifically a kind of vacuum arc-extinguishing chamber contact.
Background technology
In electric system, cut-offfing for high-tension circuit needs to realize by high voltage vacuum interrupter.High pressure vacuum arc extinguishing
Room includes being arranged on static contact and moving contact in vacuum chamber, and charge is flowed into from moving contact when moving contact touches static contact
Static contact realizes the conducting of high-tension circuit, and the disconnection of high-tension circuit is realized when moving contact departs from static contact, and each contact disconnects
It will be generated with electric arc, due to being vacuum environment, electric arc can quickly extinguish.
China's Patent Application Publication (notification number：CN202948877U；The day for announcing：2013.05.22) in disclose it is a kind of true
Empty arc extinguishing chamber contact, including contact cup, support base, annular core, contact disk；Support base be supported on contact cup and contact disk it
Between, annular core is sleeved on support base and in contact cup.During work, two above-mentioned contacts are mounted on vacuum
In arc-chutes, two touch first be static contact, another be moving contact, contact cup is connected with conducting rod, and two contacts can be with
It is switched over by the contact of contact disk with separating and then to circuit opening and closing.
Contact disk bears larger combination pressure during folding, and contact disk may collision deformation even fracture.
In above-mentioned technical proposal, the structure of support is only the support column positioned at center, and support effect is more general, to contact disk
Stabilization still cannot be guaranteed.
The content of the invention
The utility model provides a kind of vacuum arc-extinguishing chamber contact, this practicality for the above problem existing for existing technology
It is new the technical problem to be solved is that：How the stability of contact chip architecture is improved.
The purpose of this utility model can be realized by following technical proposal：
A kind of vacuum arc-extinguishing chamber contact, it is coaxial in the contact cup including contact cup, the contact blade being fixed on contact cup
Support column is provided with, the support column outer cover is equipped with coaxial iron core, which is characterized in that the support column both ends are both provided with
The support portion of plate-like, the support portion and contact blade inner face of one end contradict, and the inner bottom wall of the support portion and contact cup of the other end is supported
It touches, the iron core is located between the lateral wall of support portion and the madial wall of contact cup, described iron core one end and contact cup inner face
It contradicts, the other end is contradicted with contact blade inner wall.
The structure for adding support portion outside denomination on the support columns compared to more original structure, can increase support column
With contact cup, the bearing area of contact blade, it can so disperse the transmission of the contact on contact blade, avoid stress concentration at
Contact blade center ensure that the structural stability of contact blade.Meanwhile the structure of iron core is designed to be filled with outside support portion
In gap between wall and contact cup inner wall, such iron core can also play the supporting role to contact blade of auxiliary.In this knot
The basic supported portion of entire contact blade inner wall and iron core side wall support under structure, the pressure born on entire contact blade obtain sufficiently
Scattered, so in prolonged contact impact, this contact chip architecture can keep stable, and service life is longer.
In above-mentioned vacuum arc-extinguishing chamber contact, the recessed portion for hindering internal vortex effect is provided on the iron core.Iron
The structure of core can effectively increase the longitudinal magnetic field in contact gap, and the structure of recessed portion can limit ferromagnetic material in iron core
The eddy current effect of material, and then ensure the magnetic field intensity of longitudinal magnetic field.
In above-mentioned vacuum arc-extinguishing chamber contact, the recessed portion is the fracture for axially penetrating through iron core upper and lower end face.Fracture
The generation of circumferential electric current in iron core can be directly organized, reduces the eddy current effect of itself.
In above-mentioned vacuum arc-extinguishing chamber contact, the recessed portion is to be opened on the end face of iron core and axially extend
Open slot, the open slot quantity are multiple and are uniformly distributed.Multiple open slots can also be to the vortex of ferromagnetic material in iron core
Effect is eliminated.
In above-mentioned vacuum arc-extinguishing chamber contact, the open slot is distributed in the both ends of the surface of iron core, iron core both ends of the surface
Open slot along the circumferential direction interlaced distribution.It is interlaced between open slot, the stabilization of such iron core overall structure also more,
The eddy current effect of Ferromagnetic Material in iron core is also preferably minimized by open slot staggeredly as far as possible.
In above-mentioned vacuum arc-extinguishing chamber contact, the support column is axially disposed to be useful for what is be fixedly connected with conducting rod
Mounting hole.The structure of mounting hole is directly inserted into inside for the end of conducting rod, improves the accurate journey in conducting rod installation process
Degree.
In above-mentioned vacuum arc-extinguishing chamber contact, the support column end set has axially projecting spacing ring, described to touch
Head piece is provided centrally with the limit hole being engaged by clamping with spacing ring.Contact blade is directly anchored to by limit hole on spacing ring, this
Sample can allow contact blade to keep
Higher stability, it is relatively simple in installation process, nor easily rock.
In above-mentioned vacuum arc-extinguishing chamber contact, it is provided on the contact blade side and is clamped and to be annular with contact cup
Buckling groove.Buckling groove can improve the mounting stability of contact blade, it is avoided to be rocked after installing.
Compared with prior art, the utility model has the following advantages：
1st, the pressure on contact blade can uniformly disperse in contact, in use, the stable structure of contact blade, energy
It is enough to use for a long time.
2nd, contact blade installation is more convenient, and accuracy is high.
3rd, iron core more can effectively play the effect for improving and increasing longitudinal magnetic field.
Description of the drawings
Fig. 1 is the assembling structure schematic diagram of the present embodiment one.
Fig. 2 is the structure sectional view of support column in the present embodiment one.
Fig. 3 is the structure chart of iron core in the present embodiment one.
Fig. 4 is the structure chart of iron core in the present embodiment two.
Fig. 5 is the structure chart of iron core in the present embodiment three.
Fig. 6 is the structure chart of iron core in the present embodiment four.
In figure, 1, contact cup；2nd, contact blade；21st, limit hole；22nd, buckling groove；3rd, support column；31st, support portion；32nd, install
Hole；33rd, spacing ring；4th, iron core；41st, fracture；42nd, open slot；5th, conducting rod.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one
As shown in Figure 1, a kind of vacuum arc-extinguishing chamber contact, including contact cup 1, contact blade 2, the cylinder bucket of contact cup 1
Shape.The opening one side of contact cup 1 is sealed by contact blade 2, and one side of the contact cup 1 away from opening is conductive for being connected with conducting rod 5
Bar 5 is used to be connected with external circuitry point.In the arc-chutes of vacuum circuit breaker, the quantity of contact is two, two contact difference
For static contact and moving contact, two contacts realize power on circuitry by contacting with each other for contact blade 2.
As shown in Figures 1 and 2, contact cup 1 is internally provided with support column 3, and the both ends of support column 3 are wholely set protrusion respectively
Support portion 31, support column 3 be mounted on 1 inside axis of contact cup position, the support portion 31 and the inner wall of contact blade 2 of one side connect
It touches, the support portion 31 of opposite side is contacted with the bottom wall of contact cup 1.The support portion 31 of both sides can increase by 3 both ends of support column difference
With 1 inner wall of contact cup, 2 inner wall contact area of contact blade, the stability of structure is improved.
3 one end of support column is provided with axial mounting hole 32, is provided on contact cup 1 and 32 position of mounting hole is opposite opens
Mouthful, internal thread can be set in mounting hole 32, and the end of conducting rod 5 can be solid to pass through the opening on contact cup 1 and mounting hole 32
Fixed connection, and then contact cup 1 can be clamped between conducting rod 5 and support column 3, keep stablizing.
The one end of support column 3 away from mounting hole 32 is provided with axially projecting spacing ring 33, and the centre bit of contact blade 2 installs
It is equipped with limit hole 21.When contact blade 2 is fitted on contact cup 1, the spacing ring 33 on support column 3 just penetrates into /V
Hole 21, and then support column 3 fixes 2 position of contact blade.The clamping of annular there are one being set simultaneously on the outer edge of contact blade 2
Slot 22, when contact blade 2 is mounted on contact cup 1, buckling groove 22 and the edge of contact cup 1 mutually coincide, buckling groove 22
The installation fixed structure of contact blade 2 is collectively formed with limit hole 21.
As shown in Fig. 1 and 3, cored 4 are arranged on support column 3, iron core 4 is used to increase the longitudinal flux in contact gap
.Iron core 4 is located between 1 inner wall of support portion 31 and contact cup and coaxial with support column 3.The both sides of iron core 4 respectively with contact blade
2nd, contact cup 1 contradicts, and then iron core 4 collectively forms the support to contact blade 2 with support portion 31, improves 2 surface texture of contact blade
Stability in use.Iron core 4 is stacked by the iron plate of multiple annulars, and iron plate is ferromagnetic material, in the electricity of variation
Corresponding longitudinal magnetic field can be generated in stream, the electric arc generated between contact can be guided.
Embodiment two
As shown in figure 4, a kind of vacuum arc-extinguishing chamber contact, embodiment two and one structure of embodiment are basically identical, and difference only exists
In 4 structure of iron core, in the present embodiment, fracture 41 is provided in the axial direction on iron core 4, fracture 41 axially penetrates through two of iron core 4
Side, and then the eddy current effect inside iron core 4 can be reduced.
Embodiment three
As shown in figure 5, a kind of vacuum arc-extinguishing chamber contact, embodiment three and one structure of embodiment are basically identical, and difference only exists
In 4 structure of iron core, in the present embodiment, multiple axially extending open slots 42, open slot 42 are offered on the one side of iron core 4
Not through iron core 4, each 42 structure of open slot is consistent and is circumferentially distributed.The structure of open slot 42 can reduce iron core
Vortex effect inside 4.
Example IV
As shown in fig. 6, a kind of vacuum arc-extinguishing chamber contact, example IV and one structure of embodiment are basically identical, and difference only exists
In 4 structure of iron core, in the present embodiment, multiple axially extending open slots 42, open slot 42 are offered on the two sides of iron core 4
Not through iron core 4, each 42 structure of open slot is consistent and is circumferentially distributed, while the 42 equal edge of open slot of adjacent both sides
It circumference to be interspersed between each other, the structure of open slot 42 can reduce the vortex effect inside iron core 4.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although 1, contact cup is used more herein；2nd, contact blade；21st, limit hole；22nd, buckling groove；3rd, support column；
31st, support portion；32nd, mounting hole；33rd, spacing ring；4th, iron core；41st, fracture；42nd, open slot；5th, the terms such as conducting rod, but not
It rules out the possibility of using other terms.The use of these items is only for more easily describe and explain the utility model
Essence；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
Claims (8)
1. a kind of vacuum arc-extinguishing chamber contact, including contact cup (1), the contact blade (2) being fixed on contact cup (1), the contact
Support column (3) is coaxially arranged in cup (1), support column (3) outer cover is equipped with coaxial iron core (4), which is characterized in that institute
The support portion (31) that support column (3) both ends are both provided with plate-like is stated, support portion (31) and contact blade (2) inner face of one end support
It touches, the support portion (31) of the other end is contradicted with the inner bottom wall of contact cup (1), and the iron core (4) is located at the outside of support portion (31)
Between the madial wall of wall and contact cup (1), described iron core (4) one end is contradicted with contact cup (1) inner face, the other end and contact blade
(2) inner wall contradicts.
2. vacuum arc-extinguishing chamber contact according to claim 1, which is characterized in that be provided on the iron core (4) in obstruction
The recessed portion of bilge vortex effect.
3. vacuum arc-extinguishing chamber contact according to claim 2, which is characterized in that the recessed portion is to axially penetrate through iron core
(4) fracture (41) of upper and lower end face.
4. vacuum arc-extinguishing chamber contact according to claim 2, which is characterized in that the recessed portion is to be opened in iron core (4)
End face on and the open slot (42) that axially extends, open slot (42) quantity be multiple and be uniformly distributed.
5. vacuum arc-extinguishing chamber contact according to claim 4, which is characterized in that the open slot (42) is distributed in iron core
(4) in both ends of the surface, open slot (42) the along the circumferential direction interlaced distribution of iron core (4) both ends of the surface.
6. according to the vacuum arc-extinguishing chamber contact described in claim 1 to 5 any one, which is characterized in that support column (3) edge
Axially it is provided with the mounting hole (32) being fixedly connected with conducting rod.
7. according to the vacuum arc-extinguishing chamber contact described in claim 1 to 5 any one, which is characterized in that support column (3) end
Portion is provided with axially projecting spacing ring (33), and the contact blade (2) is provided centrally with the limit being engaged by clamping with spacing ring (33)
Position hole (21).
8. according to the vacuum arc-extinguishing chamber contact described in claim 1 to 5 any one, which is characterized in that contact blade (2) side
Be provided on side with contact cup (1) be clamped and for annular buckling groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721384503.9U CN207441567U (en) | 2017-10-25 | 2017-10-25 | Vacuum arc-extinguishing chamber contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721384503.9U CN207441567U (en) | 2017-10-25 | 2017-10-25 | Vacuum arc-extinguishing chamber contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441567U true CN207441567U (en) | 2018-06-01 |
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ID=62293844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721384503.9U Active CN207441567U (en) | 2017-10-25 | 2017-10-25 | Vacuum arc-extinguishing chamber contact |
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| Country | Link |
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| CN (1) | CN207441567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117038385A (en) * | 2023-09-06 | 2023-11-10 | 西安交通大学 | Contact with non-shunt supporting structure and vacuum arc-extinguishing chamber using same |
-
2017
- 2017-10-25 CN CN201721384503.9U patent/CN207441567U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117038385A (en) * | 2023-09-06 | 2023-11-10 | 西安交通大学 | Contact with non-shunt supporting structure and vacuum arc-extinguishing chamber using same |
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| GR01 | Patent grant |