CN207441522U - A kind of portable single-phase air bypass switch - Google Patents
A kind of portable single-phase air bypass switch Download PDFInfo
- Publication number
- CN207441522U CN207441522U CN201721581505.7U CN201721581505U CN207441522U CN 207441522 U CN207441522 U CN 207441522U CN 201721581505 U CN201721581505 U CN 201721581505U CN 207441522 U CN207441522 U CN 207441522U
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- small axis
- air
- moving contact
- static contact
- casing
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Abstract
The utility model discloses a kind of portable single-phase air bypass switches, including casing, are arranged at the copper hook of casing shoe and are arranged in casing：Static contact (4), moving contact (5), the small axis (1) being connected with moving contact (5) below moving contact (5), the elastic component (2) for being arranged at small axis (1) bottom are provided with exhaust ring (3) on small axis (1)；When switching combined floodgate, moving contact (5) is engaged with static contact (4), elastic component (2) is compressed, and static contact (4), moving contact (5), small axis (1), casing, exhaust ring (3) are enclosed air memory block (100) jointly；When switching separating brake, moving contact (5) is separated with static contact (4), elastic component (2) promotes small axis (1) to move upwards, and realization air-flow arc extinguishing is discharged upwards so as to which exhaust ring (3) be driven to move upwards compress and pass through the stomata of static contact (4) air in air memory block (100).
Description
Technical field
The utility model is related to electrical network field more particularly to a kind of portable single-phase air bypass switches.
Background technology
Only by air blowout during the portable single-phase air bypass switch maintenance circuit designed at present, principle is when charged
During operation disconnecting non-loaded cable, since line capacitance generates change dramatically, if keeping the air gap, voltage if, can increase, when
When voltage is more than the ionization voltage of the air gap, air ionization will be made air become ion, then generate electric arc.It is so single
Mutually switch quick-make, interface resistance will not generate electric arc close to zero.The quick disjunction of single-phase switch, interface resistance are rapid
Becoming larger, voltage rise, electric arc generates, but since apart from becoming larger rapidly, line voltage distribution can not puncture at this time air insulation between contact
Contact between air insulation, arc extinction, although this can realize arc extinguishing, arc quenching effect is not good enough, and reliability is not high, peace
Full property is also inadequate.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of the prior art, provides a kind of portable
Single-phase air bypass switch.
Technical solution is used by the utility model solves its technical problem：A kind of portable single-phase air bypass of construction
Switch including casing, is arranged at the copper hook of casing shoe and is arranged in casing：Static contact, above static contact
Moving contact, the small axis being connected with moving contact below moving contact, the elastic component for being arranged at small axis bottom, on the small axis
Exhaust ring is provided with, the venthole connected with casing is opened in copper hook；
When switch close a floodgate when, moving contact is engaged with static contact, and elastic component is compressed, static contact, moving contact, small axis, casing,
Exhaust ring is enclosed air memory block jointly；When switching separating brake, moving contact is separated with static contact, the small axial direction of resilient element urges
Upper movement is arranged upwards so as to which exhaust ring be driven to move upwards to compress and pass through the stomata of static contact the air in air memory block
Go out to realize air-flow arc extinguishing.
In portable single-phase air bypass switch described in the utility model, elastic component is spring.
In portable single-phase air bypass switch described in the utility model, small axis is in the form of a column and by bottom position along small
Axis periphery wall is provided with annular flange, spring be placed on small axis positioned at annular flange section below and abutted with annular flange,
The upper section positioned at annular flange of small axis is cased with an axle sleeve, and exhaust ring is placed on outside small axis and is connected to annular flange and axle sleeve
Between.
Implement the portable single-phase air bypass switch of the utility model, have the advantages that：It is new using this practicality
Type can increase air-blast effect, between dynamic/static contact generate electric arc while, by the air of the air memory block in casing to
Upper compression generates air-flow, achievees the effect that air-flow puts out arc extinguishing, improves arc extinguishing reliability, enhances service kit safety in utilization.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer：
Fig. 1 is that the preferred embodiment of the utility model is switching structure diagram when closing a floodgate；
Fig. 2 is structure diagram of the preferred embodiment of the utility model when switching separating brake.
Specific embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
It states.The exemplary embodiments of the utility model are given in attached drawing.But the utility model can in many different forms come in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is the public affairs made to the utility model
Open content more thorough and comprehensive.
It should be noted that when element is referred to as " being arranged at " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.It is term as used herein " on ", " under ", " bottom " and similar
Statement for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model
The normally understood meaning of technical staff in domain is identical.It is simply in the term used in the description of the utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
The defects of the utility model is directed to can only rely on the reliability of air blowout in the prior art, security is inadequate, carries
Go out to increase the thinking of air-blast, the total thinking of the utility model is：Exhaust ring is provided on small axis, so that switch closes
Lock when moving contact is engaged with static contact, forms air memory block above exhaust ring.When switch separating brake, moving contact and static contact
During separation, the small axis of resilient element urges moves upwards, will be in air memory block so as to which the exhaust ring on small axis be driven to move upwards
Air compress and pass through static contact stomata discharge upwards realize air-flow arc extinguishing.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the utility model embodiment and embodiment are to this
Apply for the detailed description of technical solution rather than the restriction to technical scheme, in the case where there is no conflict, this practicality
Technical characteristic in new embodiment and embodiment can be mutually combined.
With reference to figure 1, the switch in preferred embodiment includes casing, the copper hook for being arranged at casing shoe and is arranged on set
In pipe：Static contact 4, the moving contact 5 above static contact 4, the small axis being connected with moving contact 5 positioned at 5 lower section of moving contact
1st, the elastic component 2 of small 1 bottom of axis is arranged at, exhaust ring 3 is provided on the small axis 1.
Preferably, elastic component 2 is spring.
During in order to ensure that exhaust ring 3 moves upwards compressed air, 3 bottom of exhaust ring is not in negative pressure, is opened in copper hook
The logical venthole 7 connected with casing.
Specifically, small axis 1 is in the form of a column and small 1 periphery wall of axis is provided with annular flange 11 by bottom position, spring is placed on
The section below positioned at annular flange 11 of small axis 1, and spring top is abutted with annular flange 11, small axis 1 is located at convex annular
Be cased with an axle sleeve 6 outside the upper section of edge 11, exhaust ring 3 be placed on small axis 1 it is outer and be connected to annular flange 11 and axle sleeve 6 it
Between.
With reference to figure 1, when switching combined floodgate, moving contact 5 is closely engaged with static contact 4, and spring is compressed, and static contact 4 is moved and touched
First 5, small axis 1, casing, exhaust ring 3 are enclosed air memory block 100 jointly.
With reference to figure 2, when switching separating brake, moving contact 5 is separated with static contact 4, and spring promotes small axis 1 to move upwards, so as to
The exhaust ring 3 on small axis 1 is driven to move upwards, moving contact 5, small axis 1, casing, exhaust ring 3 are enclosed air compressional zone jointly
Air in 200, Fig. 1 in air memory block 100 is compressed to the air compressional zone 200 in Fig. 2, and passes through the gas of static contact 4
Hole is discharged upwards, and single-phase high-speed flow can be generated in casing, free electron is dispelled, and electric arc is cooled down, and can speed up
Arc extinction, so as to achieve the effect that air-flow arc extinguishing, the haircut in Fig. 2 illustrates air current flow direction.
In conclusion implementing the portable single-phase air bypass switch of the utility model, have the advantages that：Using
The utility model can increase air-blast effect, while electric arc is generated between dynamic/static contact, by the air memory block in casing
Air compress generation air-flow upwards, achieve the effect that air-flow puts out arc extinguishing, improve arc extinguishing reliability, enhancing service kit uses
Security.
The embodiment of the utility model is described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, above-mentioned specific embodiment is only schematical rather than restricted, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (3)
1. a kind of portable single-phase air bypass switch, which is characterized in that including casing, be arranged at casing shoe copper link up with
And it is arranged in casing：Static contact (4), the moving contact (5) above static contact (4), below moving contact (5) with
The small axis (1) of moving contact (5) connection is arranged at the elastic component (2) of small axis (1) bottom, and exhaust ring (3) is provided on small axis (1),
The venthole (7) connected with casing is opened in copper hook；
When switching combined floodgate, moving contact (5) is engaged with static contact (4), and elastic component (2) is compressed, static contact (4), moving contact
(5), small axis (1), casing, exhaust ring (3) are enclosed air memory block (100) jointly；When switching separating brake, moving contact (5)
It is separated with static contact (4), elastic component (2) promotes small axis (1) to move upwards, so as to which exhaust ring (3) be driven to move upwards air
Air in memory block (100) compress and pass through static contact (4) stomata discharge upwards realize air-flow arc extinguishing.
2. portable single-phase air bypass switch according to claim 1, which is characterized in that elastic component (2) is spring.
3. portable single-phase air bypass switch according to claim 2, which is characterized in that small axis (1) is in the form of a column and leans on
Bottom position is provided with annular flange (11) along small axis (1) periphery wall, and what spring was placed on small axis (1) is located at annular flange (11)
It section below and is abutted with annular flange (11), the upper section positioned at annular flange (11) of small axis (1) is cased with an axle sleeve
(6), exhaust ring (3) is placed on small axis (1) outside and is connected between annular flange (11) and axle sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721581505.7U CN207441522U (en) | 2017-11-23 | 2017-11-23 | A kind of portable single-phase air bypass switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721581505.7U CN207441522U (en) | 2017-11-23 | 2017-11-23 | A kind of portable single-phase air bypass switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441522U true CN207441522U (en) | 2018-06-01 |
Family
ID=62287240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721581505.7U Active CN207441522U (en) | 2017-11-23 | 2017-11-23 | A kind of portable single-phase air bypass switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207441522U (en) |
-
2017
- 2017-11-23 CN CN201721581505.7U patent/CN207441522U/en active Active
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