CN211790394U - SF (sulfur hexafluoride)6Load switch shell - Google Patents
SF (sulfur hexafluoride)6Load switch shell Download PDFInfo
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- CN211790394U CN211790394U CN202020303772.3U CN202020303772U CN211790394U CN 211790394 U CN211790394 U CN 211790394U CN 202020303772 U CN202020303772 U CN 202020303772U CN 211790394 U CN211790394 U CN 211790394U
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- load switch
- ceramic dielectric
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Abstract
The utility model relates to a SF6The load switch shell comprises an upper shell and a lower shell corresponding to the upper shell, wherein the upper shell is provided with an upper contact, and the lower shell is provided with a lower contact and a grounding contact; a sensing cavity is arranged in the side wall of the lower shell, a ceramic dielectric capacitor is arranged in the sensing cavity, a receiving terminal is arranged on the side wall of the lower shell corresponding to the ceramic dielectric capacitor, two ends of the ceramic dielectric capacitor are respectively connected with the lower contact and the receiving terminal through leads, and the receiving terminal and the grounding contact are oppositely arranged on two sides of the lower shell; the upper contact, the lower contact, the grounding contact, the induction cavity, the ceramic dielectric capacitor and the outgoing terminal form a unit, and at least three units are arranged; the utility model discloses simple structure, simple to operate during production, electric capacity installation is firm notCan be deviated due to material injection, has stable capacitance value and completely consistent charged display, and has very high qualification rate of work frequency withstand voltage and partial discharge test.
Description
Technical Field
The utility model relates to an electrical switch technical field, in particular to SF6A load switch housing.
Background
SF of 10kV voltage class in the prior art6The load switch shell adopts an induction coil net type electricity testing mode, an induction coil net is respectively sleeved at the middle part of a copper rod connected with three-phase electricity at a lower contact incoming line end of a switch shell, the copper rod and the coil net are packaged and insulated by epoxy resin, when the incoming line end of the switch shell is connected with a high-voltage power grid, the high voltage of the copper rod voltage value 10kV communicated with the power grid is high, the induction coil net sleeved at the middle part of the copper rod can induce a lower voltage signal, the voltage signal can be used for connecting the working voltage of an external electrified display element, if the power grid is interrupted, or the phase is lost, the induction coil net does not have the voltage signal, and the external electrified display element can not display work.
According to the electricity testing mode of the induction coil network, the production efficiency is low, the distance between the induction network and the lower contact is adjusted in the die for each switch shell, when the injected material enters the die, the material can bias the induction network, the induction capacitance value of each phase of the produced product has deviation, the electrified display of the switch is inconsistent, and meanwhile, the qualification rate is low when the work frequency withstand voltage and the partial discharge test are carried out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an SF to prior art not enough6The load switch shell, SF6 load switch shell can well solve the problems.
In order to meet the above requirements the utility model provides a technical scheme that its technical problem adopted is:
providing an SF6The load switch comprises a load switch shell and a load switch shell, wherein the load switch shell comprises an upper shell and a lower shell corresponding to the upper shell, an upper contact is arranged on the upper shell, and a lower contact and a grounding contact are arranged on the lower shell; an induction cavity is arranged in the side wall of the lower shell, a ceramic dielectric capacitor is arranged in the induction cavity, a receiving terminal is arranged on the side wall of the lower shell corresponding to the ceramic dielectric capacitor, two ends of the ceramic dielectric capacitor are respectively connected with the lower contact and the receiving terminal through leads, and the receiving terminal and the grounding contact are oppositely arranged on two sides of the lower shell; the upper contact, the lower contact, and the ground contactThe induction cavity, the ceramic dielectric capacitor and the outgoing terminal form a unit, and the number of the units is at least three.
SF of the utility model6The load switch comprises a load switch shell, wherein the outer side of the lower shell is provided with strip-shaped bulges corresponding to the units, and one ends of the bulges close to the lower contact are close to the lower contact; the sensing cavity the wire with connect out the terminal and all be located in the arch, connect out the terminal and be located keep away from in the arch the one end of lower contact, bellied being equipped with on the surface and supplying connect out the opening that the terminal exposes.
SF of the utility model6A load switch housing, wherein a plurality of the cells are arranged in a straight line; a first creepage wall is arranged on the upper shell at a position between two adjacent upper contacts; the outer side of the upper contact is coated with an upper insulating layer, and the outer side of the lower contact is coated with a lower insulating layer.
SF of the utility model6The load switch comprises a load switch shell, an upper shell and an upper insulating layer, wherein the upper shell and the upper insulating layer are integrally formed by injection molding; one end of the protrusion, which is close to the lower contact, is connected with the lower insulating layer, and the lower shell, the lower insulating layer and the protrusion are integrally molded by injection molding.
SF of the utility model6The load switch casing, wherein, lie in on the inferior valve the outside of lower insulating layer has second creepage wall and third creepage wall, the second creepage wall with the third creepage wall all is the tube-shape, the top of third creepage wall with the top of lower contact flushes, the top of second creepage wall is less than the top of lower contact.
SF of the utility model6The load switch casing, wherein, the outside of going up the insulating layer is equipped with a plurality of fourth creepage walls, the fourth creepage wall is cyclic annular.
SF of the utility model6And the upper shell and the lower shell are detachably connected.
SF of the utility model6A load switch housing, wherein the upper shell is provided with a ringA creepage dado is provided around a plurality of the units.
The beneficial effects of the utility model reside in that: the utility model discloses a SF6Load switch casing changes traditional induction network into porcelain dielectric capacitor, simple to operate when production, and the electric capacity installation is firm can not be because of annotating the material and dashing partially, and the capacitance value is stable, and electrified demonstration is identical completely, does the operating frequency withstand voltage and partial discharge test's qualification rate very high, and this porcelain dielectric capacitor tests the SF of electric formula6The load switch shell is formed by combining an upper shell and a lower shell, three lower contacts of the lower shell are connected with a high-voltage end of a ceramic dielectric capacitor, a connection terminal is connected with a low-voltage end of the ceramic dielectric capacitor and used for being grounded or connected with a charged display, when the switch shell is connected with a main circuit, the three lower contacts are respectively connected with A, B, C three-phase power of a power grid, at the moment, if the three-phase power grid is charged, the ceramic dielectric capacitor sends a voltage signal to the charged display, if the three-phase power grid is not charged, no voltage signal or phase lack phenomenon exists, namely, a certain phase or a certain two phase is charged, and the charged display connected with the ceramic dielectric capacitor can be embodied.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:
FIG. 1 shows the SF of the present invention6The overall structure of the load switch shell.
FIG. 2 shows SF of the present invention6The lower shell of the load switch shell is in a sectional view.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The SF of the preferred embodiment of the present invention6A load switch shell, as shown in fig. 1-2, comprising an upper shell 1 and a lower shell 2 corresponding to the upper shell, wherein the upper shell 1 is provided with an upper contact 101, and the lower shell 2 is provided with a lower contact 201 and a ground contact 202; an induction cavity 3 is arranged in the side wall of the lower shell 2, a ceramic dielectric capacitor 4 is arranged in the induction cavity 3, a receiving terminal 5 is arranged on the side wall of the lower shell 2 corresponding to the ceramic dielectric capacitor 4, two ends of the ceramic dielectric capacitor 4 are respectively connected with the lower contact 2 and the receiving terminal 5 through a lead 6, and the receiving terminal 5 and the grounding contact 202 are oppositely arranged on two sides of the lower shell 2; the upper contact 101, the lower contact 201, the grounding contact 202, the induction cavity 3, the ceramic dielectric capacitor 4 and the outgoing terminal 5 form a unit, at least three units are arranged, and the original induction network electricity testing mode is changed into SF (sulfur hexafluoride) of ceramic dielectric capacitor electricity testing mode6Switch shell, simple to operate when production, the electric capacity installation is firm can not be because of annotating the material and dashing partially, and the capacitance value is stable, and electrified demonstration is complete unanimous, does the operating frequency withstand voltage and partial discharge test's qualification rate very high, and this ceramic dielectric capacitor tests SF of electric formula6The switch shell is formed by combining an upper shell 1 and a lower shell 2, the upper shell 1 and the lower shell 2 are both molded by adopting epoxy resin insulating materials through injection molding, three lower contacts 201 in the lower shell 2 are wire inlet ends of the switch, three upper contacts 101 of the upper shell 1 are red copper bars with the diameter of 32mm, the lower contacts 201 of the lower shell 2 are connected with a high-voltage end of a ceramic dielectric capacitor 4, a connecting terminal 5 is a copper nut, the low-voltage end of the connection ceramic dielectric capacitor 4 is used for grounding or connecting with a charged display, when the switch shell is connected with a main circuit, the three lower contacts 201 are connected to A, B, C three-phase power of the power grid, respectively, and at this time, if electricity exists in the three-phase power grid, the ceramic dielectric capacitor 4 sends a voltage signal to the electrified display, if no electricity exists, no voltage signal exists or no phase phenomenon exists, namely, a certain phase or a certain two phases do not exist, and the charged display connected with the ceramic dielectric capacitor 4 can be shown.
Preferably, the outer side of the lower shell 2 is provided with a strip-shaped protrusion 7 corresponding to the unit, and one end of the protrusion 7 close to the lower contact 201 is close to the lower contact 201; the induction cavity 3, the lead 6 and the outgoing terminal 5 are all located in the protrusion 7, the outgoing terminal 5 is located in the protrusion 7 and is far away from one end of the lower contact 201, an opening for the outgoing terminal 5 to expose is formed in the surface of the protrusion 7, the ceramic dielectric capacitor 4 is arranged in the protrusion 7, the ceramic dielectric capacitor 4 can be protected from being damaged, meanwhile, the thickness of the lower shell 2 cannot be increased, and the material cost is reduced.
Preferably, the plurality of cells are arranged in a straight line; a first creepage wall 102 is arranged at a position between two adjacent upper contacts 101 on the upper shell 1; the outside of going up contact 1 is wrapped with upper insulation layer 103, and the outside of lower contact 201 is wrapped with lower insulation layer 203 to increase creepage distance, prevent the creepage condition.
Preferably, the upper shell 1 and the upper insulating layer 103 are integrally injection molded; one end of the protrusion 7 close to the lower contact 201 is connected with the lower insulating layer 203, and the lower shell 2, the lower insulating layer 203 and the protrusion 7 are integrally molded by injection molding so as to facilitate production and processing.
Preferably, a second creepage wall 204 and a third creepage wall 205 are arranged on the lower shell 2 and positioned outside the lower insulating layer 203, the second creepage wall 204 and the third creepage wall 205 are cylindrical, the top end of the third creepage wall 205 is flush with the top end of the lower contact 2, and the top end of the second creepage wall 204 is lower than the top end of the lower contact 201, so as to increase creepage distance and electric clearance.
Preferably, a plurality of fourth creepage walls 104 are arranged on the outer side of the upper insulating layer 103, and the fourth creepage walls 104 are annular to increase creepage distance.
Preferably, epitheca 1 and inferior valve 2 can be dismantled and connect, the inside components and parts of easy to assemble.
Preferably, a creepage dado 105 is provided on the upper case 1 around the plurality of cells to increase creepage distance between the upper contact 101 and the lower contact 201.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (8)
1. SF (sulfur hexafluoride)6The load switch shell is characterized by comprising an upper shell and a lower shell corresponding to the upper shell, wherein the upper shell is provided with an upper partThe lower shell is provided with a lower contact and a grounding contact; an induction cavity is arranged in the side wall of the lower shell, a ceramic dielectric capacitor is arranged in the induction cavity, a receiving terminal is arranged on the side wall of the lower shell corresponding to the ceramic dielectric capacitor, two ends of the ceramic dielectric capacitor are respectively connected with the lower contact and the receiving terminal through leads, and the receiving terminal and the grounding contact are oppositely arranged on two sides of the lower shell; the upper contact, the lower contact, the grounding contact, the induction cavity, the ceramic dielectric capacitor and the outgoing terminal form a unit, and at least three units are arranged.
2. SF according to claim 16The load switch shell is characterized in that strip-shaped bulges are arranged on the outer side of the lower shell corresponding to the units, and one ends of the bulges, close to the lower contact, are close to the lower contact; the sensing cavity the wire with connect out the terminal and all be located in the arch, connect out the terminal and be located keep away from in the arch the one end of lower contact, bellied being equipped with on the surface and supplying connect out the opening that the terminal exposes.
3. SF according to claim 26A load switch housing, wherein a plurality of said cells are arranged in a straight line; a first creepage wall is arranged on the upper shell at a position between two adjacent upper contacts; the outer side of the upper contact is coated with an upper insulating layer, and the outer side of the lower contact is coated with a lower insulating layer.
4. SF according to claim 36The load switch shell is characterized in that the upper shell and the upper insulating layer are integrally formed by injection molding; one end of the protrusion, which is close to the lower contact, is connected with the lower insulating layer, and the lower shell, the lower insulating layer and the protrusion are integrally molded by injection molding.
5. SF according to claim 36The load switch shell is characterized in that the lower shell is provided with a lower insulating layer on the outer sideSecond creepage wall and third creepage wall, the second creepage wall with the third creepage wall all is the tube-shape, the top of third creepage wall with the top of contact flushes down, the top of second creepage wall is less than the top of contact down.
6. SF according to claim 36The load switch shell is characterized in that a plurality of fourth creepage walls are arranged on the outer side of the upper insulating layer, and the fourth creepage walls are annular.
7. SF according to claim 16The load switch shell is characterized in that the upper shell and the lower shell are detachably connected.
8. SF according to claim 16The load switch shell is characterized in that a creepage dado is arranged on the upper shell and surrounds the plurality of units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020303772.3U CN211790394U (en) | 2020-03-12 | 2020-03-12 | SF (sulfur hexafluoride)6Load switch shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020303772.3U CN211790394U (en) | 2020-03-12 | 2020-03-12 | SF (sulfur hexafluoride)6Load switch shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211790394U true CN211790394U (en) | 2020-10-27 |
Family
ID=73497402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020303772.3U Active CN211790394U (en) | 2020-03-12 | 2020-03-12 | SF (sulfur hexafluoride)6Load switch shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211790394U (en) |
-
2020
- 2020-03-12 CN CN202020303772.3U patent/CN211790394U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 101 and 201, building F7, North Industrial Park, Yanchuan community, Yanluo street, Bao'an District, Shenzhen, Guangdong Patentee after: Anruipu Technology (Guangdong) Co.,Ltd. Address before: 518000 first and second floors, building F7, Yanchuan North Industrial Park, Songgang street, Bao'an District, Shenzhen, Guangdong Province Patentee before: Enrip Technology (Shenzhen) Co.,Ltd. |
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