CN204011160U - A kind of isolation knife of high-current switch - Google Patents
A kind of isolation knife of high-current switch Download PDFInfo
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- CN204011160U CN204011160U CN201420424619.0U CN201420424619U CN204011160U CN 204011160 U CN204011160 U CN 204011160U CN 201420424619 U CN201420424619 U CN 201420424619U CN 204011160 U CN204011160 U CN 204011160U
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- isolation
- cutter hub
- current switch
- hollow groove
- knife
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Abstract
The utility model provides a kind of isolation knife of high-current switch, include the isolation cutter hub of stiff end and movable end, described isolation cutter hub is provided with the heat dissipation wind channel of the use for convection of at least one perforation isolation cutter hub, to form stack effect, strengthen gaseous exchange effect, the heat generating during by energising distributes rapidly, simultaneously, the platform and the fixing avoiding hollow groove that coordinate isolation cutter hub to be provided with, movable avoiding hollow groove, solve well the kelvin effect of alternating current, meet the little and requirement to temperature rise of high-current switch isolating switch volume, reduce again operating physical force, realize the safe operation of equipment, the object that volume is little.
Description
Technical field
The utility model relates to isolation knife field, relates in particular to a kind of isolation knife of high-current switch.
Background technology
In order to improve power supply reliability, switchgear intellectuality, miniaturization, non-maintaining be the development trend of power industry.Wherein, switch cubicle is generally contained in the high voltage devices such as vacuum circuit-breaker, isolating switch, bus and instrument transformer in upper and lower isolation ward, in isolation ward, fill using SF6 gas as dielectric, dwindle cabinet overall dimension, thereby realized miniaturization and the operational reliability of gas-filling cabinet.But tradition is used in the isolation knife of high-current switch because of mounting structure complexity, when in the switch cubicle of large electric current that is installed on miniaturization, is difficult to heat to distribute rapidly, causes inside switch cabinet temperature rise to exceed standard, and has a strong impact on service quality and the useful life of gas-filling cabinet.And, in isolation knife is installed on the switch cubicle of large electric current, easily there is the kelvin effect of alternating current, be unfavorable for the normal use of switch cubicle.
Summary of the invention
The utility model provides a kind of isolation knife of high-current switch, and its object is to meet volume little, and handling safety is reliable and solve the problem of heavy current warming.
To this, the isolation knife of high-current switch of the present utility model, includes the isolation cutter hub of stiff end and movable end, and wherein, described isolation cutter hub is provided with at least one and connects the heat dissipation wind channel of the use for convection of isolation cutter hub.
Be optimized according to above-mentioned, the direction of described heat dissipation wind channel from stiff end to movable end is through the sidewall of isolation cutter hub.
Be optimized according to above-mentioned, described isolation cutter hub is provided with two heat dissipation wind channels, and two heat dissipation wind channels are symmetricly set in respectively on the left and right sides wall of isolation cutter hub.
Be optimized according to above-mentioned, the upper portion of described isolation cutter hub is provided with platform, and there is respectively fixing avoiding hollow groove and the movable avoiding hollow groove in stiff end and movable end platform both sides.
Be optimized according to above-mentioned, the level height of described platform is consistent with the sidewall height of isolation cutter hub.
Be optimized according to above-mentioned, described fixing avoiding hollow groove is provided with the fixing hole of rotating shaft fixed installation use, and described movable avoiding hollow groove is connected with grounding contact or outlet contact.
Be optimized according to above-mentioned, described isolation cutter hub is copper pipe isolation knife.
The beneficial effects of the utility model are: the entirety of isolation cutter hub adopts the copper pipe structure of satisfactory electrical conductivity, and inside is provided with heat dissipation wind channel, to form stack effect, strengthen gaseous exchange effect, the heat generating during by energising distributes rapidly, simultaneously, the platform that cooperation isolation cutter hub is provided with and fixing avoiding hollow groove, movable avoiding hollow groove, solve well the kelvin effect of alternating current, meet the little and requirement to temperature rise of high-current switch isolating switch volume, reduce again operating physical force, realized the little object of safe operation, volume of equipment.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model preferred embodiment.
Fig. 2 is the upward view of the utility model preferred embodiment.
Fig. 3 is A-A cutaway view in the utility model preferred embodiment Fig. 2.
Fig. 4 is B-B cutaway view in the utility model preferred embodiment Fig. 2.
Fig. 5 is that the air-flow of the utility model preferred embodiment moves towards schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail, as shown in Fig. 1 to Fig. 5 of preferred embodiment, it includes the isolation cutter hub 1 of stiff end and movable end, isolation cutter hub 1 is provided with the heat dissipation wind channel 2 of the use for convection of at least one perforation isolation cutter hub 1, and the direction of this heat dissipation wind channel 2 from stiff end to movable end is through the sidewall of isolation cutter hub 1.In prioritization scheme, described isolation cutter hub 1 is provided with two heat dissipation wind channels 2, article two, heat dissipation wind channel 2 is symmetricly set in respectively on the left and right sides wall of isolation cutter hub 1, while making to move, two heat dissipation wind channels 2, to form stack effect, strengthen gaseous exchange effect, the heat generating during by energising outwards distributes rapidly, on isolation cutter hub 1, can also be provided with several through holes 7, strengthen radiating effect, avoid gas-filling cabinet internal temperature rise to exceed standard.And isolation cutter hub 1 adopts copper pipe structure, middle part is provided with platform 3, and the level height of platform 3 is consistent with the sidewall height of isolation cutter hub 1, adds high surface area, has solved well the kelvin effect of alternating current, safe and reliable.And, there is the fixing avoiding hollow groove 4 and movable avoiding hollow groove 5 in stiff end and movable end the both sides of this platform 3, fixing avoiding hollow groove 4 is provided with the fixing hole 6 of rotating shaft fixed installation use, described movable avoiding hollow groove 5 is connected with grounding contact or outlet contact, both can accelerate surperficial radiating effect, can meet volume again little, operating physical force is little.And isolation cutter hub 1 is the copper pipe isolation knife being processed by copper tube, it has applied the processing technologys such as material forging and stamping and cold joint, moulding, makes to isolate cutter hub 1 profile round and smooth, and electric field is even, good conductivity, and operating physical force is little, safe and reliable.
Comprehensively above-mentioned, monolithic conductive and the radiating effect of the application's isolation cutter hub 1 are splendid, have met the little warp of high-current switch isolating switch volume and the requirement to temperature rise, have realized the safe operation of equipment, the object of smaller volume.
Therefore, above-mentioned specific embodiment is only the good embodiment of the utility model effect, and the isolation knife of all or high-current switch of being equal to identical with this structure, all in the application's protection range.
Claims (7)
1. an isolation knife for high-current switch, includes the isolation cutter hub (1) of stiff end and movable end, it is characterized in that: described isolation cutter hub (1) is provided with at least one and connects the heat dissipation wind channel (2) of the use for convection of isolation cutter hub (1).
2. the isolation knife of high-current switch according to claim 1, is characterized in that: the direction of described heat dissipation wind channel (2) from stiff end to movable end is through the sidewall of isolation cutter hub (1).
3. according to the isolation knife of high-current switch described in claim 1 or 2, it is characterized in that: described isolation cutter hub (1) is provided with two heat dissipation wind channels (2), two heat dissipation wind channels (2) are symmetricly set in respectively on the left and right sides wall of isolation cutter hub (1).
4. the isolation knife of high-current switch according to claim 3, it is characterized in that: the upper middle part of described isolation cutter hub (1) is provided with platform (3), and there is respectively the fixing avoiding hollow groove (4) and movable avoiding hollow groove (5) in stiff end and movable end platform (3) both sides.
5. the isolation knife of high-current switch according to claim 4, is characterized in that: the level height of described platform (3) is consistent with the sidewall height of isolation cutter hub (1).
6. the isolation knife of high-current switch according to claim 4, is characterized in that: described fixing avoiding hollow groove (4) is provided with the fixing hole (6) of rotating shaft fixed installation use, and described movable avoiding hollow groove (5) is connected with grounding contact or outlet contact.
7. the isolation knife of high-current switch according to claim 3, is characterized in that: described isolation cutter hub (1) is copper pipe isolation knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424619.0U CN204011160U (en) | 2014-07-30 | 2014-07-30 | A kind of isolation knife of high-current switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424619.0U CN204011160U (en) | 2014-07-30 | 2014-07-30 | A kind of isolation knife of high-current switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011160U true CN204011160U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420424619.0U Active CN204011160U (en) | 2014-07-30 | 2014-07-30 | A kind of isolation knife of high-current switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN204011160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124087A (en) * | 2014-07-30 | 2014-10-29 | 广东必达电器有限公司 | Isolation knife of large-current switch cabinet |
-
2014
- 2014-07-30 CN CN201420424619.0U patent/CN204011160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124087A (en) * | 2014-07-30 | 2014-10-29 | 广东必达电器有限公司 | Isolation knife of large-current switch cabinet |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |