CN206225271U - On-load switch - Google Patents
On-load switch Download PDFInfo
- Publication number
- CN206225271U CN206225271U CN201621236803.8U CN201621236803U CN206225271U CN 206225271 U CN206225271 U CN 206225271U CN 201621236803 U CN201621236803 U CN 201621236803U CN 206225271 U CN206225271 U CN 206225271U
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- load switch
- wafer
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model provides a kind of on-load switch, including support frame, it is fixed on the housing of support frame as described above, the moving contact in the housing, the grounding static contact for being fixed on support frame as described above and connecting rod for driving the moving contact to be turned on or off with the grounding static contact, described connecting rod one end is connected with the moving contact, the other end is movably hinged with the housing, and the moving contact is provided with notch in the contact position with the grounding static contact.Compared with correlation technique, the moving contact of the on-load switch that the utility model is provided offers notch, makes radiating and arc resistant ablation effect good.
Description
Technical field
The utility model is related to power switch technical field, more particularly to a kind of on-load switch.
Background technology
On-load switch is mainly used in high-voltage ring main unit manufacturing, is widely used in high pressure transmission and distribution networkses, in 10kV voltages
Grade can be using very long-term, stable performance.But (such as active load cut-offs, transfer current cut-offs in 24kV voltage class performance
Deng) there is very big decline, there may come a time when to cause the forfeiture of function so that power supply quality declines, cause accident of power supply.Cause existing
The main cause that properties of product decline is the rising of the recovery voltage after cut-offfing, and primary voltage grade is 12kV, and uses 24kV electricity
During pressure grade so that arc energy rises a lot, and electric arc localized burn contact is serious, and radiating condition declines, and the arc time is elongated,
So that break performance is remarkably decreased, final failure of interruption.
On-load switch in correlation technique is more with the contact area of static contact because of moving contact, increased the electricity of major loop
Resistance, radiating effect is not obvious, and load current capacity is poor, and arc resistant ablation ability, electric arc easily concentrates ablation contact part, no
Beneficial to repeatedly cut-offfing.
Therefore, it is necessary to provide a kind of new on-load switch solve the above problems.
Utility model content
The utility model technical issues that need to address are to provide a kind of on-load switch of good heat dissipation effect.
In order to solve the above technical problems, the utility model provides a kind of on-load switch, including support frame, it is fixed on the branch
The housing of support, the moving contact in the housing, the grounding static contact for being fixed on support frame as described above and described for driving
The connecting rod that moving contact is turned on or off with the grounding static contact, described connecting rod one end is connected with the moving contact, separately
One end is movably hinged with the housing, and the moving contact is provided with notch in the contact position with the grounding static contact.
Preferably, the moving contact includes two relatively spaced first contacts and the second wafer, first contact
The notch is offered with the second wafer.
Preferably, the moving contact also includes being respectively arranged on multiple salient points of first contact and the second wafer,
The salient point on first contact is with the salient point being located on the second wafer two-by-two just to setting.
Preferably, the moving contact also includes being individually fixed in two clamp pads of first contact and the second wafer
Piece, grip gasket is oppositely arranged described in two.
Preferably, the on-load switch also includes being fixed on the arc extinguishing coral piece of the housing, the arc extinguishing coral piece with it is described
Moving contact is oppositely arranged.
Preferably, the width of the notch is 0.5~1cm.
Preferably, the notch is elongated.
Compared with correlation technique, the on-load switch that the utility model is provided opens up notch by moving contact, makes in closure
During switch, electrical conduction current ability and the surface area of radiating between moving contact and grounding static contact are increased, enhanced current-carrying
Ability, while the ability of heat-sinking capability and arc resistant ablation is improve, so as to improve the service life of moving contact and static contact.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model on-load switch；
Fig. 2 is the structural representation at another visual angle of the utility model on-load switch；
Fig. 3 is the three-dimensional structure diagram of the moving contact of the utility model on-load switch；
Fig. 4 is the three-dimensional structure diagram at another visual angle of the moving contact of the utility model on-load switch.
Specific embodiment
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
Incorporated by reference to referring to Figures 1 and 2, wherein, Fig. 1 is the structural representation of the utility model on-load switch；Fig. 2 is this reality
With the structural representation at another visual angle of novel load switch.The on-load switch 200 includes support frame 1, is fixed on the branch
The housing 2 of support 1, the moving contact 3 in the housing 2, the grounding static contact 4 for being fixed on support frame as described above 1 and for driving
The connecting rod 5 that the dynamic moving contact 3 is turned on or off with the grounding static contact 4, the one end of the connecting rod 5 and the moving contact
3 are connected, and the other end of the connecting rod 5 is movably hinged with the housing 2.
The housing 2 is further fixed on arc extinguishing coral piece 7, and the arc extinguishing coral piece 7 is oppositely arranged with the moving contact 3.It is described
Arc extinguishing coral piece 7 is used for the electric arc produced between moving contact 3 and the grounding static contact 4 described in action switch operation, to ensure
Electric equipment operation safety.
Fig. 3 and Fig. 4 is refer to, wherein, Fig. 3 is that Fig. 3 is the three-dimensional structure diagram of the moving contact of the utility model on-load switch；
Fig. 4 is the three-dimensional structure diagram at another visual angle of the moving contact of the utility model on-load switch.The one end of the moving contact 3 and the shell
Body 2 is movably hinged, and the connecting rod 5 drives the moving contact 3 to be rotated around one end that itself and the housing 2 are movably hinged, described
Moving contact 3 is double contact plate structures, and the moving contact 3 includes the first contact 31 and the second wafer 32, first contact 31 and institute
The shape size for stating the second wafer 32 is consistent.First contact 31 and the second wafer 32 it is spaced setting and pass through
Mode connects for screw.When the switch is closed, drive device is (not shown) drives transmission main shaft 6 to drive the connecting rod 5 to rotate, so that band
The dynamic moving contact 3 is contacted with the grounding static contact 4, the grounding static contact 4 is sticked in first contact 31 and institute
State between the second wafer 32, realize the conducting of circuit.When switch is disconnected, the transmission main shaft 6 drives 5 turns of the connecting rod
It is dynamic, make the moving contact 3 with the grounding static contact 4 separate and remote from the grounding static contact 4, so as to realize cutting for circuit
It is disconnected.
The moving contact 3 offers notch 33 in the contact position with the grounding static contact 4.Wherein, the notch 33
Shape is elongated.The width of the notch 33 is 0.5~1cm.First contact 31 and the second wafer 32 are opened up
There is the notch 33.By setting the notch 33, make, in closure switch, to increased the moving contact 3 and the ground connection is quiet
Electrical conduction current ability and the surface area of radiating, enhance current-carrying ability between contact 4；Make good heat dissipation effect simultaneously, improve
The ability of arc resistant ablation, so as to improve the service life of the moving contact 3 and the grounding static contact 4.
The moving contact 3 also includes being respectively arranged on multiple salient points 34 of first contact 31 and the second wafer 32,
The salient point 34 on first contact 31 and the salient point 34 on the second wafer 32 just pair are setting two-by-two
Put, by setting the salient point 34, the moving contact 3 and the grounding static contact 4 is contacted more preferably.
The moving contact 3 also includes being individually fixed in two grip gaskets of first contact 31 and the second wafer 32
35, just to setting, the grip gasket 35 is metallic conductor to grip gasket 35 described in two, by setting the grip gasket
35, effectively improve the contact stabilization of the moving contact 3 and the grounding static contact 4.
Compared with correlation technique, on-load switch of the present utility model offers notch by moving contact, makes to be opened in closure
Guan Shi, increased electrical conduction current ability and the surface area of radiating between the moving contact and the grounding static contact, enhance load
The ability of electric current, while improve the ability of arc resistant ablation, so as to improve the moving contact and the grounding static contact
Service life.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (7)
1. a kind of on-load switch, it is characterised in that including support frame, be fixed on the housing of support frame as described above, located at the housing
Interior moving contact, it is fixed on the grounding static contact of support frame as described above and for driving the moving contact to be led with the grounding static contact
The connecting rod that on-off is opened, described connecting rod one end is connected with the moving contact, and the other end is movably hinged with the housing, institute
State moving contact and be provided with notch in the contact position with the grounding static contact.
2. on-load switch according to claim 1, it is characterised in that the moving contact includes two relatively spaced the
One contact and the second wafer, first contact and the second wafer offer the notch.
3. on-load switch according to claim 2, it is characterised in that the moving contact also includes being respectively arranged on described first
Multiple salient points of contact and the second wafer, the salient point on first contact be located on the second wafer
The salient point two-by-two just to set.
4. on-load switch according to claim 3, it is characterised in that the moving contact also includes being individually fixed in described the
Two grip gaskets of one contact and the second wafer, grip gasket is oppositely arranged described in two.
5. on-load switch according to claim 1, it is characterised in that the on-load switch also includes being fixed on the housing
Arc extinguishing coral piece, the arc extinguishing coral piece is oppositely arranged with the moving contact.
6. on-load switch according to claim 1 and 2, it is characterised in that the width of the notch is 0.5~1cm.
7. on-load switch according to claim 1 and 2, it is characterised in that the notch is elongated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621236803.8U CN206225271U (en) | 2016-11-17 | 2016-11-17 | On-load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621236803.8U CN206225271U (en) | 2016-11-17 | 2016-11-17 | On-load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206225271U true CN206225271U (en) | 2017-06-06 |
Family
ID=58790412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621236803.8U Expired - Fee Related CN206225271U (en) | 2016-11-17 | 2016-11-17 | On-load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206225271U (en) |
-
2016
- 2016-11-17 CN CN201621236803.8U patent/CN206225271U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20181117 |