CN114068228A - Isolating switch - Google Patents
Isolating switch Download PDFInfo
- Publication number
- CN114068228A CN114068228A CN202111260789.0A CN202111260789A CN114068228A CN 114068228 A CN114068228 A CN 114068228A CN 202111260789 A CN202111260789 A CN 202111260789A CN 114068228 A CN114068228 A CN 114068228A
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- Prior art keywords
- insulating
- fixed
- base
- contact
- grooves
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- 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.)
- Pending
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- 230000001681 protective effect Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 241000893568 Diphylleia cymosa Species 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/52—Contacts adapted to act as latches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The invention relates to the technical field of high-voltage switches, and discloses an isolating switch which comprises a base, a first insulating support and a second insulating support, wherein a first fixed contact is arranged at the top of the first insulating support, a second fixed contact is arranged at the top of the second insulating support, a disconnecting link is hinged on the second insulating support, one end of the disconnecting link is connected with the second fixed contact, the other end of the disconnecting link is fixedly connected with a moving contact, the first fixed contact is provided with a plurality of fixed grooves, the moving contact is provided with a plurality of moving grooves, the fixed grooves and the moving grooves are arranged in a staggered manner, the first fixed contact and the moving contact can be mutually meshed through the fixed grooves and the moving grooves, a first insulating seat and a first magnet are arranged in the middle of the disconnecting link, and a second insulating seat and a second electromagnet are arranged on the base. Compared with the prior art, this isolator's structural design is ingenious, controlled fixed contact and moving contact generate heat, promoted isolator's life, eliminated the work risk, use and experience well.
Description
Technical Field
The invention relates to the field of high-voltage switches, in particular to an isolating switch.
Background
An isolating switch is a switching device used for isolating a power supply, switching operation, and connecting and disconnecting a small current circuit. The isolating switch is widely used in transformer substations, power plants and other places, and is closely related to the design, establishment and safe operation of the transformer substations, the power plants and other places.
In fact, the traditional isolating switch is effective in contact area due to the fact that the structural design leads to the fixed contact and the moving contact, the reduction of the contact area further leads to serious heating of current when the current passes through the isolating switch, the temperature of the whole isolating switch is difficult to reduce, the risk of being burnt exists, and certain potential safety hazards are achieved.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the isolating switch which has the advantages of ingenious structural design, capability of controlling the heating condition of the isolating switch, elimination of hidden working hazards and the like.
Based on the above, the invention provides an isolating switch, which comprises a base, a first insulating support and a second insulating support, wherein the first insulating support and the second insulating support are arranged on the base, a first fixed contact is arranged at the top of the first insulating support, a second fixed contact is arranged at the top of the second insulating support, a disconnecting link is hinged on the second insulating support, one end of the disconnecting link is connected with the second fixed contact, a moving contact is fixedly connected with the other end of the disconnecting link, the first fixed contact is provided with a plurality of fixed grooves, the moving contact is provided with a plurality of moving grooves, the fixed grooves and the moving grooves are arranged in a staggered manner, the first fixed contact and the moving contact can be mutually engaged through the fixed grooves and the moving grooves, a first insulating seat is arranged in the middle of the disconnecting link, a first magnet is fixed on the first insulating seat, and a second insulating seat is arranged on the base, and a second electromagnet is arranged on the second insulating seat.
In some embodiments of the present application, the outside cover of second insulator is equipped with the spring, the one end of spring with base fixed connection, the other end of spring with first insulator fixed connection.
In some embodiments of the present application, the number of the fixed grooves is greater than or equal to the number of the movable grooves.
In some embodiments of the present application, the fixed groove is provided with three, and the movable groove is provided with two.
In some embodiments of this application, first insulating pillar with second insulating pillar structure is the same, first insulating pillar includes the perpendicular to the cylinder and the cover that the base set up establish with a plurality of umbrella leaves on the cylinder, each piece the umbrella leaf is followed the cylinder sets gradually and forms the umbrella crowd, follows the bottom of cylinder extremely the top of cylinder the diameter of umbrella leaf reduces gradually.
In some embodiments of the present application, the post and the blades are made of ceramic.
In some embodiments of the present application, the protection device further comprises a protection box, wherein the base is disposed in the protection box, and the protection box covers the first insulating support, the second insulating support and the disconnecting link.
In some embodiments of the present application, a heat dissipation device is disposed in the protection box.
In some embodiments of the present application, a temperature sensor is disposed in the protection box, and the temperature sensor is electrically connected to the controller of the heat dissipation device.
In some embodiments of the present application, a movable door is disposed on a surface of the protection box, and the movable door is hinged to the protection box.
Compared with the prior art, the embodiment of the invention provides an isolating switch, which has the beneficial effects that:
the invention provides an isolating switch, which comprises a base, a first insulating support and a second insulating support, wherein the first insulating support and the second insulating support are arranged on the base; furthermore, the middle part of the disconnecting link is provided with a first insulating base, a first magnet is fixed on the first insulating base, a second insulating base is arranged below the first insulating base, the second insulating base is arranged on the base, and a second electromagnet is arranged on the second insulating base. Based on the structure, before the isolating switch is used, two ends of the isolating switch are respectively connected with other circuit structures through the first fixed contact and the second fixed contact, when the isolating switch is used, the disconnecting switch is pulled to enable the fixed groove and the movable groove to be mutually clamped and engaged, at the moment, the whole circuit structure is communicated, effective transmission of current can be realized, the first fixed contact and the movable contact form a multi-section structure through the arrangement of the fixed groove and the movable groove, the fixed groove and the movable groove are mutually clamped and engaged, so that the contact area of the first fixed contact and the movable contact can be effectively increased, the conducting effect is further improved, the heating of the first fixed contact and the movable contact is reduced, and the service life of the isolating switch is prolonged; furthermore, the knife switch and the base are respectively fixed with a first magnet and a second magnet through a first insulating seat and a second insulating seat, when the isolating switch needs to be pulled on, a circuit of the second magnet is started, at the moment, the second magnet excites the first magnet to attract magnetically, the knife switch rotates under the pulling of an operator and the mutual attraction of the first magnet and the second magnet, and the connection between the first fixed contact and the movable contact is realized, of course, the second magnet can still keep an excited state after the connection between the first fixed contact and the movable contact is completed, at the moment, the first magnet and the second magnet attract mutually, the connection effect of the first fixed contact and the movable contact can be further enhanced, when the isolating switch needs to be disconnected, only the excitation of the second magnet needs to be stopped to eliminate the attraction between the first magnet and the second magnet, and then the knife switch is operated to separate the first fixed contact and the movable contact, the smooth disconnection of the isolating switch is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an isolator according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a first fixed contact and a movable contact implemented by the present invention;
fig. 3 is a schematic structural diagram of a protection box according to an embodiment of the present invention.
In the figure, 1, a base; 2. a first insulating support; 2 a; a cylinder; 2b, umbellate pore fungus leaves; 3. a second insulating support; 4. a first fixed contact; 4a, fixing a groove; 5. a second fixed contact; 6. a disconnecting link; 7. a moving contact; 7a, moving the groove; 8. a first insulating base; 9. a first magnet; 10. a second insulating base; 11. a second electromagnet; 12. a spring; 13. a protective case; 14. a movable door.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
It should be understood that the terms "front", "rear", and the like are used herein to describe various information, but the information should not be limited to these terms, which are used only to distinguish one type of information from another. For example, "front" information may also be referred to as "rear" information, and "rear" information may also be referred to as "front" information without departing from the scope of the present invention.
As shown in fig. 1 to 3, an embodiment of the present invention provides an isolating switch, which includes a base 1, and a first insulating pillar 2 and a second insulating pillar 3 that are disposed on the base 1, where a first fixed contact 4 is disposed on a top of the first insulating pillar 2, a second fixed contact 5 is disposed on a top of the second insulating pillar 3, a disconnecting link 6 is hinged on the second insulating pillar 3, one end of the disconnecting link 6 is connected to the second fixed contact 5, another end of the disconnecting link 6 is fixedly connected to a moving contact 7, the first fixed contact 4 is provided with a plurality of fixed grooves 4a, the moving contact 7 is provided with a plurality of moving grooves 7a, the fixed grooves 4a and the moving grooves 7a are alternately disposed, and the first fixed contact 4 and the moving contact 7 can be engaged with each other through the fixed grooves 4a and the moving grooves 7 a; further, the middle part of the disconnecting link 6 is provided with a first insulating base 8, a first magnet 9 is fixed on the first insulating base 8, a second insulating base 10 is arranged below the first insulating base 8, the second insulating base 10 is arranged on the base 1, and a second electromagnet 11 is arranged on the second insulating base 10.
Based on the structure, before the isolating switch is used, two ends of the isolating switch are respectively connected with other circuit structures through the first fixed contact 4 and the second fixed contact 5, the disconnecting link 6 is pulled to enable the fixed groove 4a and the movable groove 7a to be mutually clamped and engaged when the isolating switch is used, the whole circuit structure is communicated at the moment, effective transmission of current can be realized, the first fixed contact 4 and the movable contact 7 form a multi-section structure through the arrangement of the fixed groove 4a and the movable groove 7a, the contact area of the first fixed contact 4 and the contact area of the movable contact 7 can be effectively increased through the mutual clamping and engaging of the fixed groove 4a and the movable groove 7a, the conducting effect is further improved, the heating of the first fixed contact 4 and the movable contact 7 is reduced, and the service life of the isolating switch is prolonged; furthermore, the knife switch 6 and the base 1 are respectively fixed with a first magnet 9 and a second magnet 11 through a first insulating base 8 and a second insulating base 10, when the disconnecting switch needs to be pulled, a circuit of the second magnet 11 is started, at this time, the second magnet 11 excites the first magnet 9 to attract magnetically, the knife switch 6 rotates under the pulling of an operator and the mutual attraction of the first magnet 9 and the second magnet 11 and realizes the connection of the first fixed contact 4 and the movable contact 7, of course, the second magnet 11 can still keep an excitation state after the connection of the first fixed contact 4 and the movable contact 7 is completed, at this time, the first magnet 9 and the second magnet 11 attract each other, the connection effect of the first fixed contact 4 and the movable contact 7 can be further enhanced, when the disconnecting switch needs to be disconnected, the attraction between the first magnet 9 and the second magnet 11 can be eliminated only by stopping exciting the second magnet 11, and then the disconnecting link 6 is operated to separate the first fixed contact 4 and the movable contact 7, so that the disconnecting switch is ensured to be smoothly disconnected.
Optionally, in some embodiments of the present application, a spring 12 is sleeved outside the second insulating base 10, one end of the spring 12 is fixedly connected to the base 1, and the other end of the spring 12 is fixedly connected to the first insulating base 8. The arrangement of the spring 12 can limit the disconnecting link 6, control the lifting angle of the disconnecting link 6 and avoid redundant operation caused by overlarge lifting angle of the disconnecting link; further, switch 6 is the horizontality when first certain contact 4 and moving contact 7 interconnect, and spring 12 pressurized this moment, and pressurized spring 12 can give 6 ascending reaction forces of switch, and reaction forces can help switch 6 to accomplish when second electro-magnet 11 stops arousing and break away from, and the spring 12 structural design who adds is ingenious, the function is various, the result of use is outstanding.
Further, for the fixed groove 4a and the movable groove 7a in this application, since the first fixed contact 4 remains stationary, the movable contact 7 gradually approaches or leaves the first fixed contact 4, so as to reduce the size of the movable contact 7 while ensuring the connection effect, and ensure good movement of the movable contact 7, the number of the fixed grooves 4a is greater than or equal to the number of the movable grooves 7 a. Specifically, in the embodiment of the present invention, there are three fixed grooves 4a and two movable grooves 7 a.
Furthermore, the first insulating pillar 2 and the second insulating pillar 3 in the embodiment of the present invention have the same structure, and specifically, the first insulating pillar 2 includes a column body 2a disposed perpendicular to the base 1 and a plurality of umbrella leaves 2b sleeved on the column body 2a, the umbrella leaves 2b are sequentially disposed along the column body 2a to form an umbrella group, and the diameter of the umbrella leaves 2b decreases gradually from the bottom of the column body 2a to the top of the column body 2 a. Based on above-mentioned structure, supreme reducing in proper order is down followed to the volume of insulating pillar, and whole stable in structure is reliable, insulating good, difficult other accidents that take place, and it needs to notice, in order to guarantee insulating effect, cylinder 2a and the equal preferred ceramic of umbellate leaf 2b make, and ceramic insulating effect is outstanding, and itself is common easily obtained, is favorable to controlling manufacturing cost.
In addition, protection switch generally all can assemble when using outdoors, isolator receives the easy emergence corrosion of blowing to shine under the open-air condition, reduce isolator's life, consequently in order to avoid the appearance of similar condition, the isolator of this application still includes cladding base 1, first insulation pillar 2, the protection box 13 of structures such as second insulation pillar 3 and switch 6, protection box 13 is the cuboid setting and coats isolator's each structure, can effectively avoid natural environment such as high wind rainwater to lead to the fact the influence to isolator, thereby promote isolator's life.
Further, the current can pass through each structure when isolator uses, and isolator can the condition that generates heat this moment, and the temperature in protecting box 13 can also cause the influence to isolator's normal use if can not effectively reduce, consequently, in some embodiments of this application, still be equipped with heat abstractor (not shown) in protecting box 13. Specifically, the heat dissipation device in the embodiment of the present invention is preferably a ventilation fan, which is disposed on a side surface of the protection box 13, and can complete gas exchange between the inside and the outside of the protection box 13, and effectively control temperature change in the protection box 13; furthermore, a temperature sensor (not shown) is further disposed in the protection box 13, the temperature sensor is electrically connected to the controller of the heat dissipation device, the temperature sensor can sense temperature changes in the protection box 13 in real time, and the controller of the heat dissipation device receives temperature signals transmitted by the temperature sensor and completes opening and closing of the ventilation fan according to the temperature conditions in the protection box 13 in order, so as to ensure that the temperature in the protection box 13 is always kept at a normal level.
Of course, a wireless signal transmission device (not shown) can be further arranged in the protection box 13, and is electrically connected with the temperature sensor, so that the temperature condition measured by the temperature sensor can be sent to an operator in real time, the operator can monitor the temperature condition in the protection box 13, and the operator can timely find abnormality and handle the abnormality.
In addition, the movable door 14 has been seted up on the surface of protection box 13, and movable door 14 is connected with protection box 13 is articulated, and operating personnel accessible movable door 14 opens protection box 13 and accomplishes the maintenance to isolator, excellent in use effect. Of course, the operator can open the movable door 14 in a sunny weather without strong wind and heavy rain, so as to further improve the ventilation effect between the protection box 13 and the outside, and ensure the effective heat dissipation in the box.
In conclusion, the invention provides an isolating switch, which comprises a base 1, and a first insulating pillar 2 and a second insulating pillar 3 which are arranged on the base 1, wherein a first fixed contact 4 is arranged at the top of the first insulating pillar 2, a second fixed contact 5 is arranged at the top of the second insulating pillar 3, a disconnecting link 6 is hinged on the second insulating pillar 3, one end of the disconnecting link 6 is connected with the second fixed contact 5, a moving contact 7 is fixedly connected with the other end of the disconnecting link 6, the first fixed contact 4 is provided with a plurality of fixed grooves 4a, the moving contact 7 is provided with a plurality of moving grooves 7a, the fixed grooves 4a and the moving grooves 7a are arranged in a staggered manner, and the first fixed contact 4 and the moving contact 7 can be mutually meshed through the fixed grooves 4a and the moving grooves 7 a; further, the middle part of the disconnecting link 6 is provided with a first insulating base 8, a first magnet 9 is fixed on the first insulating base 8, a second insulating base 10 is arranged below the first insulating base 8, the second insulating base 10 is arranged on the base 1, and a second electromagnet 11 is arranged on the second insulating base 10. Compared with the prior art, the isolating switch has the advantages that the structural design is ingenious, the heating of the fixed contact and the moving contact 7 is controlled, the service life of the isolating switch is prolonged, the working risk is eliminated, and the use experience is good.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. An isolating switch is characterized by comprising a base, a first insulating support and a second insulating support which are arranged on the base, the top of the first insulating support is provided with a first fixed contact, the top of the second insulating support is provided with a second fixed contact, a knife switch is hinged on the second insulating support, one end of the knife switch is connected with the second fixed contact, the other end of the disconnecting link is fixedly connected with a moving contact, the first fixed contact is provided with a plurality of fixed grooves, the moving contact is provided with a plurality of moving grooves, the fixed grooves and the moving grooves are arranged in a staggered way, the first fixed contact and the movable contact can be mutually meshed through the fixed groove and the movable groove, the middle part of switch is equipped with first insulating seat, be fixed with first magnet on the first insulating seat, be equipped with the second insulating seat on the base, be equipped with the second electro-magnet on the second insulating seat.
2. The isolating switch according to claim 1, wherein a spring is sleeved outside the second insulating base, one end of the spring is fixedly connected with the base, and the other end of the spring is fixedly connected with the first insulating base.
3. The isolating switch of claim 1, wherein the number of the fixed grooves is greater than or equal to the number of the movable grooves.
4. The isolating switch of claim 3, wherein there are three fixed recesses and two movable recesses.
5. The isolating switch according to claim 1, wherein the first insulating pillar and the second insulating pillar are identical in structure, the first insulating pillar includes a pillar body perpendicular to the base and a plurality of umbrella blades sleeved on the pillar body, the umbrella blades are sequentially arranged along the pillar body to form an umbrella group, and the diameters of the umbrella blades gradually decrease from the bottom of the pillar body to the top of the pillar body.
6. The disconnect switch of claim 5, wherein the post and the blades are made of ceramic.
7. The isolation switch of claim 1, further comprising a protective case, wherein the base is disposed in the protective case, and the protective case covers the first insulating support, the second insulating support, and the knife switch.
8. The isolation switch of claim 7, wherein a heat sink is disposed within the protective case.
9. The isolation switch of claim 8, wherein a temperature sensor is disposed within the protective case, the temperature sensor being electrically connected to the controller of the heat sink.
10. The isolating switch according to claim 7, wherein a movable door is provided on the surface of the protection box, and the movable door is hinged to the protection box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260789.0A CN114068228A (en) | 2021-10-28 | 2021-10-28 | Isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260789.0A CN114068228A (en) | 2021-10-28 | 2021-10-28 | Isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114068228A true CN114068228A (en) | 2022-02-18 |
Family
ID=80235742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111260789.0A Pending CN114068228A (en) | 2021-10-28 | 2021-10-28 | Isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114068228A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130118872A1 (en) * | 2010-07-23 | 2013-05-16 | Eaton Electrical Ip Gmbh & Co. Kg | Switch latch for an electrical switching device |
| CN104767146A (en) * | 2015-04-15 | 2015-07-08 | 连云港市港圣开关制造有限公司 | High-voltage switch cabinet |
| CN106601536A (en) * | 2016-12-28 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Disconnecting switch |
| CN207441558U (en) * | 2017-11-09 | 2018-06-01 | 湖南特诚成套电器有限公司 | A kind of disconnecting switch for adding pressure sheet |
| CN207781271U (en) * | 2018-01-16 | 2018-08-28 | 江西省萍乡市南坑高压电瓷有限公司 | A kind of suspension disc insulator |
| CN110993418A (en) * | 2019-12-13 | 2020-04-10 | 广东电网有限责任公司 | Isolating switch |
| CN210535568U (en) * | 2020-04-02 | 2020-05-15 | 山东亿阳电工有限公司 | Corrosion-resistant high-voltage isolating switch |
-
2021
- 2021-10-28 CN CN202111260789.0A patent/CN114068228A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130118872A1 (en) * | 2010-07-23 | 2013-05-16 | Eaton Electrical Ip Gmbh & Co. Kg | Switch latch for an electrical switching device |
| CN104767146A (en) * | 2015-04-15 | 2015-07-08 | 连云港市港圣开关制造有限公司 | High-voltage switch cabinet |
| CN106601536A (en) * | 2016-12-28 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Disconnecting switch |
| CN207441558U (en) * | 2017-11-09 | 2018-06-01 | 湖南特诚成套电器有限公司 | A kind of disconnecting switch for adding pressure sheet |
| CN207781271U (en) * | 2018-01-16 | 2018-08-28 | 江西省萍乡市南坑高压电瓷有限公司 | A kind of suspension disc insulator |
| CN110993418A (en) * | 2019-12-13 | 2020-04-10 | 广东电网有限责任公司 | Isolating switch |
| CN210535568U (en) * | 2020-04-02 | 2020-05-15 | 山东亿阳电工有限公司 | Corrosion-resistant high-voltage isolating switch |
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