CN202996694U - Solid insulating cylinder - Google Patents
Solid insulating cylinder Download PDFInfo
- Publication number
- CN202996694U CN202996694U CN 201220733178 CN201220733178U CN202996694U CN 202996694 U CN202996694 U CN 202996694U CN 201220733178 CN201220733178 CN 201220733178 CN 201220733178 U CN201220733178 U CN 201220733178U CN 202996694 U CN202996694 U CN 202996694U
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- solid insulation
- pull bar
- moving contact
- connecting hole
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Abstract
The utility model provides a solid insulating cylinder, belongs to the electric appliance technology field and solves a problem that quality of conventional solid insulating cylinders cannot be guaranteed after production is completed. The solid insulating cylinder comprises a cylinder body and one end of the body is open. A vacuum arc-extinguishing chamber is arranged in the body and comprises a vacuum cavity, a static contact, a moving contact and a pull rod, wherein the static contact, the moving contact and the pull rod are conductive; and the static contact and the moving contact are oppositely mounted in the cavity. One end of the pull rod is connected with the moving contact and can drive the moving contact to abut to or separate from the above static contact. The other end extends from the cavity. The body is provided with a connection hole I and a connection hole II which can be used for extending in the body of a busbar and are respectively connected with the above static contact and the pull rod. A conductive layer is connected with outside of the body. The solid insulating cylinder has the advantages that use reliability is high, useful life is long, installation is convenient and use states can be understood in real time.
Description
Technical field
The utility model belongs to technical field of electric appliances, relates to a kind of solid insulation cylinder, relates in particular to a kind of solid insulation cylinder that is applied in high-tension switch cabinet.
Background technology
High-tension switch cabinet refers to transmission of electricity, distribution, the electric energy conversion for electric power system and consumed the electric equipment products of the effects such as break-make, control or protection, i.e. the line of voltage conveying connects at the high-tension switch cabinet place.The solid insulation cylinder is an insulation assembly in high-tension switch cabinet, is mainly used in controlling the break-make between inlet wire and outlet, plays the effect of switch.
The solid insulation cylinder generally comprises and adopts the cylindrical case that insulating material makes and be arranged at vacuum interrupter in shell, vacuum interrupter has another name called vacuum switch tube, it is the core component of mesohigh power switch, its Main Function is, make after mesohigh circuitry cuts power supply blow-out rapidly and suppress electric current by managing the good insulating properties of interior vacuum, avoiding accident and unexpected the generation.The busbar of input voltage and the busbar of output voltage be namely respectively with the indoor fixed contact of vacuum extinction and pull bar is corresponding is connected, wherein, pull bar be connected with moving contact that fixed contact is oppositely arranged, moving contact and fixed contact all are arranged in the pipe of vacuum.
But, existing solid insulation cylinder but adopts insulating material to make the problem that has detection difficult and can't guarantee product quality because it is whole: the whole insulating material that adopts of the shell of solid insulation cylinder is made, after production is completed, enclosure may occur leaves pore or internal stress effect and produces the situations such as crack, and then affect the withstand voltage properties of the shell of solid insulation cylinder, exist in actual use to be broken down by high-voltage or possibility that useful life is shorter.And existing solid insulation cylinder only can the test section in actual testing process shell whether reach instructions for use, whole quality can't be guaranteed.In addition, existing solid insulation cylinder in use exists and can't realize that switch is intelligent, the problem that Real Time Monitoring uses state and fault to prevent.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for prior art, has proposed a kind ofly can facilitate quality testing and make the guaranteed solid insulation cylinder of product quality.
The purpose of this utility model can realize by following technical proposal:
a kind of solid insulation cylinder, comprise the tubular body that adopts insulating material to make, one end of this body opens wide, also has vacuum interrupter in body, described vacuum interrupter comprises the cavity of vacuum and the fixed contact that all conducts electricity, moving contact and pull bar, described fixed contact and moving contact all are arranged in above-mentioned cavity and both are oppositely arranged, one end of above-mentioned pull bar is connected with moving contact and can drives moving contact and above-mentioned fixed contact leans or is separated, the other end stretches out above-mentioned cavity, it is characterized in that, also offer on described body can for busbar stretch in body and respectively with connecting hole one and the connecting hole two of above-mentioned fixed contact connection corresponding to pull bar, the described body outside also is connected with conductive layer.
This solid insulation cylinder in use, by connecting hole one and connecting hole two can be respectively with the input busbar be connected busbar and be connected also conducting with fixed contact with pull bar; When needing to disconnect, an end that stretches out cavity on the operation pull bar drives moving contact away from fixed contact, and voltage transmission namely is disconnected.And be to detect for whole weight to the solid insulation cylinder at body outside connection one deck conductive layer, specifically, all switch on because extending into intrinsic busbar, so be high-pressure side in body, but the conductive layer in the body outside is ground connection, be low-pressure end, namely form stable electric field between high-low pressure.Have pore or crackle as somewhere in body, withstand voltage properties and the dielectric strength of the body at this place are reduced greatly, in test process, local breakdown phenomenon occurs and is detected in meeting.In addition, also can conveniently connect the external detection device for detection of information such as the temperature in the body use procedure and humidity, so that the real use state of solid insulation cylinder is understood timely at the outside of body connecting conductive layer.
In above-mentioned solid insulation cylinder, described conductive layer is the zinc layer that is sprayed at above-mentioned external surface.The fusing point of zinc is lower, is convenient to hot spraying, and adopts the mode of spraying can make the gap in the zinc layer less in the outside that the zinc layer is connected to body.
As another kind of situation, in above-mentioned solid insulation cylinder, described conductive layer is the iron layer that is sprayed at above-mentioned external surface.Iron or other electric conducting materials that can conduct electricity can be connected in the outside of body equally, are convenient to it is carried out quality testing.
In above-mentioned solid insulation cylinder, described connecting hole one all is opened on the sidewall of above-mentioned body with connecting hole two, and connecting hole one and connecting hole two are divided into the both sides of above-mentioned body.Connecting hole one is connected the both sides that are divided into body with connecting hole can conveniently input being connected of busbar and output busbar, equally also can avoid the situation in the contingent short circuit in the same side.
In above-mentioned solid insulation cylinder, has the installed part that body can be fixed on mounting panel with respect to the above-mentioned other end that opens wide an end on described body.Installed part can be the structures such as built-in nut or brass inserts.
In above-mentioned solid insulation cylinder, the other end with respect to fixed contact on described pull bar one end and above-mentioned moving contact is connected, the end that its other end opens wide on above-mentioned body.The end that the other end of pull bar opens wide on body can conveniently can drive its operating mechanism that moves vertically with itself and other and be connected.
In above-mentioned solid insulation cylinder, described body inboard is positioned at above-mentioned pull bar place and has convex shoulder, has between this convex shoulder and above-mentioned pull bar when pull bar drives moving contact away from fixed contact to make it have the elastic component of the trend of resetting.
In above-mentioned solid insulation cylinder, described elastic component is butterfly spring or bellows.
In above-mentioned solid insulation cylinder, described body is the square tube shape.
In above-mentioned solid insulation cylinder, described body adopts epoxy resin to make.
Compared with prior art, this solid insulation cylinder has the following advantages:
But 1, the quality testing of connecting conductive layer easy solid insulating cylinder outside the body of solid insulation cylinder, the output of products of avoiding having pore or crackle in body uses, guarantee the product quality of producing, improved the reliability and security when the solid insulation cylinder uses.
2, the information such as temperature and humidity of the body arranged outside conductive layer connection that can facilitate external equipment so that body is used detects, and conveniently understands the use state.
3, body arranges conductive layer outward and can reduce the oxidized speed of body, improves the useful life of product.
4, connecting hole one and connecting hole two are divided into the both sides of body, and installed part is connected in the end of body, has facilitated the installation of body to fix, and have also avoided the situation of short circuit between input busbar and output busbar to occur.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of this solid insulation cylinder.
In figure, 1, body; 11, connecting hole one; 12, connecting hole two; 13, convex shoulder; 2, vacuum interrupter; 21, cavity; 22, fixed contact; 23, moving contact; 24, pull bar; 3, conductive layer; 4, installed part.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this solid insulation cylinder comprises the tubular body 1 that adopts insulating material to make, and an end of this body 1 opens wide, and the other end has the installed part 4 that body 1 can be fixed on mounting panel.Also has vacuum interrupter 2 in body 1, this vacuum interrupter 2 comprises the cavity 21 that is vacuum and fixed contact 22, moving contact 23 and the pull bar 24 that all can conduct electricity, wherein, fixed contact 22 all is arranged at the interior relative two ends of cavity 21 with moving contact 23 and both are oppositely arranged, be connected with respect to the other end of fixed contact 22 on one end of pull bar 24 and moving contact 23 and can drive moving contact 23 and lean or be separated with fixed contact 22, the end that its other end stretches out cavity 21 and opens wide on body 1.
Body 1 inboard is positioned at the convex shoulder 13 that pull bar 24 places also have a ring-type, and pull bar 24 passes this convex shoulder 13, has between convex shoulder 13 and pull bar 24 when pull bar 24 drives moving contacts 23 away from fixed contact 22 to make it have the elastic component of the trend of resetting.In the present embodiment, body 1 is the square tube shape and adopts epoxy resin to make; Installed part 4 is the brass inserts; Elastic component is the butterfly spring that two ends are connected with convex shoulder 13 and pull bar 24 respectively.
Also offer on the sidewall of body 1 and can and be connected busbar and stretch into and also are connected respectively connecting hole 1 and the connecting hole 2 12 of corresponding connection in body 1 with pull bar with fixed contact 22, the both sides that connecting hole 1 and connecting hole 2 12 set up body 1 separately for the input busbar.Also be provided with the connector of a copper rectangular shape in body 1, an end and the fixed contact 22 of this connector are connected, and the other end is positioned at connecting hole one 11 inboards, is used for connecting the input busbar.An end that has installed part 4 on body 1 also offers an inspection hole, can understand the overall operation situation of mechanism and the mated condition of each parts of mechanism by this inspection hole, when operation goes wrong, can understand by inspection hole the root of problem.
The outside of body 1 also is connected with one deck conductive layer 3, and this conductive layer 3 covers the whole outer surface of bodies 1, only reserves corresponding hole in the position at connecting hole 1, connecting hole 12 and inspection hole place.In the present embodiment, this conductive layer 3 is for being sprayed at the zinc layer of body 1 outer surface.
This solid insulation cylinder in use, by connecting hole 1 and connecting hole 2 12 can be respectively with the input busbar be connected busbar and be connected with pull bar with connector and be connected, and then be connected with moving contact 23 with fixed contact 22 respectively, under initial condition, fixed contact 22 and moving contact 23 lean to be communicated with input busbar and output busbar.When need disconnecting, drive pull bar 24 by the external operating mechanism that is connected to pull bar 24 outer ends and drive moving contacts 23 away from fixed contact 22, both disconnect the rear circuit that is separated.
To detect for whole body 1 quality to the solid insulation cylinder at body 1 outside spraying one deck zinc layer, specifically, because extending into the busbar energising in body 1, so be high-pressure side in body 1, the zinc layer in body 1 outside is because being installed to ground connection on mounting panel by installed part 4, be low-pressure end, namely form stable electric field between the high-low pressure inside and outside whole body 1.Somewhere as interior in body 1 has pore or crackle, and withstand voltage properties and the dielectric strength of the body 1 at this place reduce greatly, and meeting local breakdown phenomenon occurs and is detected in test process.In addition, connect the zinc layer in the outside of body 1 and also can conveniently connect the external detection device to detect body 1 temperature and the information such as humidity in use, so that the real use state of solid insulation cylinder is understood timely.
In addition, the conductive layer 3 that is sprayed at body 1 outer surface is electric conducting materials such as iron, graphite also, and the outside that these electric conducting materials are connected in body 1 can be convenient to body 1 is carried out quality testing equally.And the elastic component that is arranged in body 1 between convex shoulder 13 and pull bar 24 also can be bellows.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (10)
1. solid insulation cylinder, comprise the tubular body (1) that adopts insulating material to make, one end of this body (1) opens wide, also has vacuum interrupter (2) in body (1), described vacuum interrupter (2) comprises the cavity (21) of vacuum and the fixed contact (22) that all conducts electricity, moving contact (23) and pull bar (24), described fixed contact (22) and moving contact (23) all are arranged in above-mentioned cavity (21) and both are oppositely arranged, one end of above-mentioned pull bar (24) is connected with moving contact (23) and can drives moving contact (23) and above-mentioned fixed contact (22) and leans or be separated, the other end stretches out above-mentioned cavity (21), it is characterized in that, also offer on described body (1) and can stretch in body (1) and be connected 24 with above-mentioned fixed contact (22) with pull bar respectively for busbar) connecting hole one (11) and the connecting hole two (12) of corresponding connection, described body (1) outside also is connected with conductive layer (3).
2. solid insulation cylinder according to claim 1, is characterized in that, described conductive layer (3) is for being sprayed at the zinc layer of above-mentioned body (1) outer surface.
3. solid insulation cylinder according to claim 1, is characterized in that, described conductive layer (3) is for being sprayed at the iron layer of above-mentioned body (1) outer surface.
4. according to claim 1 and 2 or 3 described solid insulation cylinders, it is characterized in that, described connecting hole one (11) all is opened on the sidewall of above-mentioned body (1) with connecting hole two (12), and connecting hole one (11) and connecting hole two (12) are divided into the both sides of above-mentioned body (1).
5. solid insulation cylinder according to claim 4, is characterized in that, described body (1) is upper has the installed part (4) that body (1) can be fixed on mounting panel with respect to the above-mentioned other end that opens wide an end.
6. according to claim 1 and 2 or 3 described solid insulation cylinders, is characterized in that, the upper other end with respect to fixed contact (22) of described pull bar (24) one ends and above-mentioned moving contact (23) is connected, and its other end is towards the upper end that opens wide of above-mentioned body (1).
7. solid insulation cylinder according to claim 6, it is characterized in that, described body (1) inboard is positioned at above-mentioned pull bar (24) and locates to have convex shoulder (13), has between this convex shoulder (13) and above-mentioned pull bar (24) when pull bar (24) drives moving contact (23) away from fixed contact (22) to make it have the elastic component of the trend of resetting.
8. solid insulation cylinder according to claim 7, is characterized in that, described elastic component is butterfly spring or bellows.
9. according to claim 1 and 2 or 3 described solid insulation cylinders, is characterized in that, described body (1) is the square tube shape.
10. according to claim 1 and 2 or 3 described solid insulation cylinders, is characterized in that, described body (1) adopts epoxy resin to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733178 CN202996694U (en) | 2012-12-27 | 2012-12-27 | Solid insulating cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733178 CN202996694U (en) | 2012-12-27 | 2012-12-27 | Solid insulating cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996694U true CN202996694U (en) | 2013-06-12 |
Family
ID=48567837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220733178 Expired - Lifetime CN202996694U (en) | 2012-12-27 | 2012-12-27 | Solid insulating cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021726A (en) * | 2012-12-27 | 2013-04-03 | 浙江雷安电气有限公司 | Solid insulating cylinder |
-
2012
- 2012-12-27 CN CN 201220733178 patent/CN202996694U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021726A (en) * | 2012-12-27 | 2013-04-03 | 浙江雷安电气有限公司 | Solid insulating cylinder |
| CN103021726B (en) * | 2012-12-27 | 2015-04-29 | 浙江雷安电气有限公司 | Solid insulating cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |