CN202957179U - Isolating switch - Google Patents
Isolating switch Download PDFInfo
- Publication number
- CN202957179U CN202957179U CN 201220674783 CN201220674783U CN202957179U CN 202957179 U CN202957179 U CN 202957179U CN 201220674783 CN201220674783 CN 201220674783 CN 201220674783 U CN201220674783 U CN 201220674783U CN 202957179 U CN202957179 U CN 202957179U
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- Prior art keywords
- contact
- isolating switch
- fixed
- double
- movable contact
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Abstract
The utility model discloses an isolating switch. The isolating switch comprises a base, and two insulating columns which are fixed on the base, wherein a movable contact and a stationary contact are respectively arranged on the two insulating columns; the movable contact is arranged on one of the insulating columns through a movable contact seat and provided with double parallel blades; and the double parallel blades are in clamped connection with the stationary contact and the movable contact seat through double U-shaped clamping plates. The isolating switch has the advantages that the double U-shaped clamping plates are adopted for the clamped connection of the double parallel blades, so when the isolating switch is turned on, the connection contact of the movable contact, the stationary contact and the movable contact seat is surface contact instead of the conventional line contact or point contact; contact resistance is reduced; an accident of burnout of the isolating switch caused by overheating of a contact surface due to long-time operation is effectively prevented; the service life of the isolating switch is prolonged; and maintenance cost is reduced.
Description
Technical field
The utility model relates to electric parts, particularly a kind of isolating switch of low-pressure fusing.
Background technology
Low-pressure fusing disconnecting switch, due to low cost, advantage stable, easy to maintenance, is widely used in the outlet of bench type step down side.Common low-pressure fusing disconnecting switch, comprise base, is arranged on fixed contact and moving contact on base, and fuse link, be hinged with blade on described moving contact, the other end of blade when switch is closed and fixed contact join, fuse link is fixed between moving contact and connecting plate; Fixed contact and moving contact and connecting plate are arranged on insulated column respectively.This type of isolating switch when closed, is usually that contact area is very little due to switch, or even some contact or line contact, cause contact resistance very high, when working long hours, the overheated contact that burns out of the face that easily comes in contact, exist certain potential safety hazard and useful life short, the problem that maintenance cost is high.
The utility model content
The problem that the utility model solves is to provide a kind of isolating switch, solves the existing problem that isolating switch easily breaks down, useful life is short and maintenance cost is high.
For addressing the above problem, the technical solution adopted in the utility model is:
A kind of isolating switch, comprise base, be fixed in two insulated columns on base, described two insulated columns are respectively arranged with moving contact and fixed contact, described moving contact is arranged on insulated column by movable contact block, described moving contact adopts two parallel blade structures, and described pair of parallel blade is connected to fixed contact and movable contact block by double-U-shaped clamping plate clamping.
Further, described double-U-shaped clamping plate are comprised of a U-shaped metallic plate and two Y templates that are fixed on described U-shaped metallic plate two ends, and the spacing of described two Y templates is consistent with the blade space of described pair of parallel blade.
Further, described Y template bottom is fixed on U-shaped metallic plate two ends by rivet, and described Y template top is the lead angle mouth.
Further, described Y template both sides are provided with reinforcement.
Further, described double-U-shaped clamping plate adopt screw or welding manner to be fixed in the wiring end plate on insulated column.
Compared with prior art, the advantage of technical solutions of the utility model is:
By double-U-shaped clamping plate are set, connect two parallel blades for clamping, while making isolating switch closed, its moving contact is connected contact for the face contact with fixed contact and movable contact block, rather than the contact of traditional line or some contact, reduced contact resistance, effectively prevent from coming in contact because working long hours the overheated accident that burns out isolating switch of face, extend the useful life of isolating switch, reduced maintenance cost.
The accompanying drawing explanation
Fig. 1 is the utility model specific embodiment schematic diagram;
Fig. 2 is the double-U-shaped clamping plate schematic diagram of the utility model specific embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
Shown in Fig. 1 and Fig. 2, a kind of isolating switch, comprise base 1, be fixed in two insulated columns 21 and 22 on base, described two insulated columns are respectively arranged with moving contact 3 and fixed contact 4, described moving contact 3 is arranged on insulated column 21 by movable contact block 31, described moving contact 3 adopts two parallel blade structures, and described pair of parallel blade is connected to fixed contact 4 and movable contact block 31 by double-U-shaped clamping plate 5 clampings.
Described double-U-shaped clamping plate 5 are comprised of a U-shaped metallic plate 51 and two Y templates 52 that are fixed on described U-shaped metallic plate 51 two ends; Described Y template 52 is fixed on U-shaped metallic plate 51 two ends by rivet 54, and Y template 52 both sides also are provided with reinforcement 53; The spacing of described two Y templates 52 is consistent with the blade space of described pair of parallel blade, and, when isolating switch is closed, the blade of two parallel blades, just by Y template 52 clampings of double-U-shaped clamping plate 5, forms blade and contacts with the face of clamping plate.
Described Y template 52 tops are the lead angle mouth.Described lead angle mouth facilitates blade to enter, and has improved accuracy and the speed of isolating switch closure.
Described double-U-shaped clamping plate 5 adopt screw or welding manner to be fixed in the wiring end plate on insulated column 21.Because the bottom area of double-U-shaped clamping plate 5 is large, it can form good face with the wiring end plate and contact; Fix by screw or welding manner, further improve the tightness of both contacts, reduce contact resistance, improve the current lead-through rate.
The described isolating switch of the utility model specific embodiment, by double-U-shaped clamping plate are set, connect two parallel blades for clamping, while making isolating switch closed, its moving contact is connected contact for the face contact with fixed contact and movable contact block, rather than the contact of traditional line or some contact, reduced contact resistance, effectively prevent from coming in contact because working long hours the overheated accident that burns out isolating switch of face, extended the useful life of isolating switch, reduced maintenance cost.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not within breaking away from spirit and scope of the present utility model; can make possible change and modification, the scope that therefore protection range of the present utility model should be defined with the utility model claim is as the criterion.
Claims (5)
1. an isolating switch, comprise base, be fixed in two insulated columns on base, described two insulated columns are respectively arranged with moving contact and fixed contact, it is characterized in that, described moving contact is arranged on insulated column by movable contact block, described moving contact adopts two parallel blade structures, and described pair of parallel blade is connected to fixed contact and movable contact block by double-U-shaped clamping plate clamping.
2. isolating switch according to claim 1, is characterized in that, described double-U-shaped clamping plate are comprised of a U-shaped metallic plate and two Y templates that are fixed on described U-shaped metallic plate two ends, and the spacing of described two Y templates is consistent with the blade space of described pair of parallel blade.
3. isolating switch according to claim 2, is characterized in that, described Y template bottom is fixed on U-shaped metallic plate two ends by rivet, and described Y template top is the lead angle mouth.
4. according to the described isolating switch of claim 2 or 3, it is characterized in that, described Y template both sides are provided with reinforcement.
5. isolating switch according to claim 1 and 2, is characterized in that, described double-U-shaped clamping plate adopt screw or welding manner to be fixed in the wiring end plate on insulated column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220674783 CN202957179U (en) | 2012-12-10 | 2012-12-10 | Isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220674783 CN202957179U (en) | 2012-12-10 | 2012-12-10 | Isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957179U true CN202957179U (en) | 2013-05-29 |
Family
ID=48462738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220674783 Expired - Fee Related CN202957179U (en) | 2012-12-10 | 2012-12-10 | Isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957179U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993418A (en) * | 2019-12-13 | 2020-04-10 | 广东电网有限责任公司 | Isolating switch |
| CN112548916A (en) * | 2020-12-21 | 2021-03-26 | 韩爱华 | Corresponding laminating guiding device for upper and lower rib plates during butt joint of high-precision pressure ring electrode shells |
| CN113539713A (en) * | 2021-06-11 | 2021-10-22 | 华能伊敏煤电有限责任公司 | Improvement method based on excitation knife switch overheating or high-power knife switch overheating |
-
2012
- 2012-12-10 CN CN 201220674783 patent/CN202957179U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993418A (en) * | 2019-12-13 | 2020-04-10 | 广东电网有限责任公司 | Isolating switch |
| CN112548916A (en) * | 2020-12-21 | 2021-03-26 | 韩爱华 | Corresponding laminating guiding device for upper and lower rib plates during butt joint of high-precision pressure ring electrode shells |
| CN113539713A (en) * | 2021-06-11 | 2021-10-22 | 华能伊敏煤电有限责任公司 | Improvement method based on excitation knife switch overheating or high-power knife switch overheating |
| CN113539713B (en) * | 2021-06-11 | 2023-07-07 | 华能伊敏煤电有限责任公司 | Improved method based on overheating of excitation switch or high power switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20201210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |