CN204230136U - Fuse auxiliary earth switch module - Google Patents
Fuse auxiliary earth switch module Download PDFInfo
- Publication number
- CN204230136U CN204230136U CN201420709302.1U CN201420709302U CN204230136U CN 204230136 U CN204230136 U CN 204230136U CN 201420709302 U CN201420709302 U CN 201420709302U CN 204230136 U CN204230136 U CN 204230136U
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- CN
- China
- Prior art keywords
- ground connection
- connecting rod
- fuse
- insulated
- cavity volume
- Prior art date
- 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.)
- Withdrawn - After Issue
Links
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 210000001503 joint Anatomy 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000012827 research and development Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model relates to a kind of fuse auxiliary earth switch module, and it comprises the earthed switch be electrically connected with fuse and insulating body earthed switch being carried out to sealing, and the outer surface of insulating body is coated with ground plane; Described insulating body front end offers connecting portion cavity volume; Described earthed switch comprise to be electrically connected with the leading-out terminal of fuse and front end be connected with connecting portion cavity volume rear end long conducting rod, be arranged in connecting portion cavity volume and activity be connected to the ground connection connecting rod in long conducting rod, the elastic insulated plunger be sheathed on outside ground connection connecting rod, be positioned at connecting portion cavity volume external port ground connection end cap and be actively located in the insulated connecting rod that ground connection end cap is fixedly connected with elastic insulated plunger and with ground connection connecting rod.The purpose of this utility model is to provide a kind of fuse auxiliary earth switch module of simple for structure, reliable operation, and during to guarantee that switchgear overhauls, fuse leading-out terminal ground connection, ensures safety inspection.
Description
Technical field
The utility model relates to a kind of fuse auxiliary earth switch module.
Background technology
Switch cubicle miniaturization is in recent years the study hotspot in industry.Current domestic 10kV switch cubicle majority adopts stuck-module to be formed by connecting by bus, and its air distance realizes in strict accordance with 125mm, and therefore cupboard volume is comparatively large, and environment for use is also restricted; And miniaturized switch cubicle majority adopts gas-filling cabinet scheme to meet to reduce alternate and relatively insulation distance.Because filled SF6 gas belongs to greenhouse gas, do not belong to popularization series products.In order to make up the shortcomings such as greenhouse effect, the easily gas leakage of SF6 gas-filling cabinet, and the shortcoming that air insulation switch cubicle floor space is large.Instantly, be necessary to develop a kind of new switching equipment, can small form factor requirements be met, not use greenhouse gas again, meet the requirement of environmental protection.Therefore, become can one of the R&D direction meeting the demand for solid insulation technology.In the R&D process of carrying out solid insulation technology, when carrying out Combination application to on-load switch and fuse, earthed switch is needed to provide auxiliary earth for fuse.The reliability design of earthed switch is to provide the important technology research and development point of fuse safety inspection environment.
Summary of the invention
The purpose of this utility model is to provide a kind of fuse auxiliary earth switch module of simple for structure, reliable operation, and during to guarantee that switchgear overhauls, fuse leading-out terminal ground connection, ensures safety inspection.
The purpose of this utility model is achieved through the following technical solutions:
A kind of fuse auxiliary earth switch module, it comprises the earthed switch be electrically connected with fuse and insulating body earthed switch being carried out to sealing, and the outer surface of insulating body is coated with ground plane; Described insulating body front end offers connecting portion cavity volume; Described earthed switch comprise to be electrically connected with the leading-out terminal of fuse and front end be connected with connecting portion cavity volume rear end long conducting rod, be arranged in connecting portion cavity volume and activity be connected to the ground connection connecting rod in long conducting rod, the elastic insulated plunger be sheathed on outside ground connection connecting rod, be positioned at connecting portion cavity volume external port ground connection end cap and be actively located in the insulated connecting rod that ground connection end cap is fixedly connected with elastic insulated plunger and with ground connection connecting rod; During ground connection, ground connection end cap and long conducting rod are formed by the ground connection connecting rod pulled by insulated connecting rod and are electrically connected.
Compared to prior art, the utility model has the advantage of:
1. by insulating material such as epoxy resin by fuse cavity volume and the disposable injection-compression molding of earthed switch cavity volume, and at the outer surface ground plane of insulating body that insulating material is formed, reach uniform electric field shielding and the effect of reliable ground, increase the person and equipment property safe and reliable to operation, and its appearance can directly touch, and make two-phase fuse insulating matrix can be close together and not reduce phase insulation, phase spacing narrows down to the limit, make alternate and over the ground the safe insulation distance of inside switch cabinet greatly shorten, effectively reduce the volume of switch cubicle;
2., when the isolation switch contact ground connection in switch cubicle or fuse blows, earthed switch assembly realizes reliable auxiliary earth under the interlock of actuating structure drives, and forms visible fracture, ensures safety;
3. this fuse auxiliary earth switch module can use in the place of bad environments, and has really accomplished that switch cabinet is non-maintaining;
4. the interface size highly versatile of the taper butt joint of earthed switch, can utilize existing general plug connector to be electrically connected easily, and guarantee that it is reliably connected with other electric component;
5. modular design can the most reasonably reduce number of molds, improves product versatility, is conveniently connected.
Accompanying drawing explanation
Fig. 1 is the using state perspective view of a kind of embodiment of the utility model.
Fig. 2 is the diagrammatic side views of Fig. 1 embodiment.
Fig. 3 is the diagrammatic cross-sectional view of a kind of operating state of earthed switch assembly.
Fig. 4 is the diagrammatic cross-sectional view of the another kind of operating state of earthed switch assembly.
Label declaration: 1 main switch assembly, 2 fuse assemblies, 21 insulating bodies, 211 fuse cavity volumes, 212 butt joint plant chambeies, 213 threaded connector containing cavities, 214 elastic insulated plugs, 215 plug fixtures, 216 connecting portion cavity volumes, 217 taper butt joints, 22 ground planes, 23 fuse units, 231 inlet wire conductive shield seats, 2311 shielding convex edges, 232 inlet wire conductive contacts, 233 fuses, 234 outlet conductive shield seats, 2341 shielding convex edges, 2342 shielding convex edges, 235 outlet conductive contacts, 236 strikers, 237 watchband-shaped contactors, 238 butt joint conduction holders, 24 earthed switches, 241 long conducting rods, 2411 charged display shading rings, 242 ground connection connecting rods, 243 elastic insulated plungers, 244 ground connection end caps, 2441 fixing inserts, 2442 conduction terminations, 2443 elastic conduction contacts, 245 insulated connecting rods, 3 busbar assemblies, 4 switch cabinets, 5 operating mechanisms.
Embodiment
Below in conjunction with Figure of description and embodiment, the utility model content is described in detail:
The embodiment schematic diagram of a kind of fuse auxiliary earth switch module provided for the utility model as shown in Figures 1 to 4.
A kind of fuse auxiliary earth switch module, it is characterized in that: it comprises the earthed switch 24 be electrically connected with fuse 23 and the insulating body 21 earthed switch 24 being carried out to sealing, the outer surface of insulating body 21 is coated with ground plane 22, described insulating body 21 front end offers connecting portion cavity volume 216, described earthed switch 24 comprises and to be electrically connected with the leading-out terminal of fuse 23 and the long conducting rod 241 that is connected with connecting portion cavity volume 216 rear end of front end, to be arranged in connecting portion cavity volume 216 and activity is connected to the ground connection connecting rod 242 in long conducting rod 241, be sheathed on the elastic insulated plunger 243 outside ground connection connecting rod 242, be positioned at the ground connection end cap 244 of connecting portion cavity volume 216 external port and be actively located in the insulated connecting rod 245 that ground connection end cap 244 is fixedly connected with elastic insulated plunger 243 and with ground connection connecting rod 242, during ground connection, ground connection end cap 244 and long conducting rod 241 are formed by the ground connection connecting rod 242 pulled by insulated connecting rod 245 and are electrically connected.Earthed switch 24 under the drive of operating mechanism 5 with the synchronous ground connection of main switch assembly 1.During ground connection, insulated connecting rod 245 is drawn out and forms visible fracture.
The outer surface of insulating body 21 adopts metallizing particle coating to be reliably connected with earth potential, high-pressure conductor forms the electrode structure of all pressing by appropriate design, form high-low pressure two current potentials with external ground layer 22, centre forms reliable and stable High-Voltage Insulation by certain thickness solid insulation matrix.Therefore, solid insulation design makes the original air type structure of overall structure volume ratio reduce 2/3, and insulation property do not change because of the impact of height above sea level and other outside environmental elements simultaneously.
Described ground connection end cap 244 comprise the fixing inserts 2441 be embedded on the wall of connecting portion cavity volume 216 front end, with fixing inserts 2441 be threaded coordinate and with insulated connecting rod 245 perforating conduction termination 2442 and to be located in insulated connecting rod 245 perforating and the elastic conduction contact 2443 be electrically connected with conduction termination 2442; When ground connection connecting rod 242 is drawn out, ground connection connecting rod 242 is electrically connected with conduction termination 2442 by the elastic conduction contact 2443 leaned on ground connection connecting rod 242.
In order to squeeze out the air in connecting portion cavity volume 216, compression elasticity insulation plunger 243 is pushed up in described conduction termination 2442; When insulated connecting rod 245 inserts elastic insulated plunger 243, insulated connecting rod 245 and elastic insulated plunger 243 are interference fit.Elastic insulated plunger 243 outer surface is with certain tapering, when insulated connecting rod 245 inserts elastic insulated plunger 243, the part that insulated tension pole 245 contacts with elastic insulated plunger 243 with certain taper, thus realizes the interference fit between insulated connecting rod 245 and elastic insulated plunger 243.
Described insulating body 21, its termination being positioned at long conducting rod 241 rear end is the taper butt joint 217 of the outer bevel-type Structure composing of employing standard, the uncoated ground plane 22 of outer surface of taper butt joint 217.The bottom of described taper butt joint 217 is provided with convex annular along 218.Because taper butt joint 217 adopts the outer bevel-type structure of standard, therefore it can be expanded as cable joint carries out being connected with other electric component very easily on demand.Convex annular is located at the bottom of taper butt joint 217 and near ground plane 22 place, it plays the effect of even ground plane 22 and the electric field of the intersection of uncoated ground plane 22 along 218.
Described taper butt joint 217 is provided with around long conducting rod 241 with the junction of insulating body 21 main body and is embedded at the charged display shading ring 2411 in insulating body 21.Utilize charged display shading ring 2411 to respond to and obtain capacitance signal to realize detecting the function of charged situation.
As shown in Figure 3, for ensureing that fuse 233 is changed convenient and reliable, fuse unit 23 is arranged in the fuse cavity volume 211 of insulating body 21, outlet conductive shield seat 234 and long conducting rod 241 are one-body molded in casting process, and the electrical connection between fuse unit 23 and earthed switch 24 and failure rate can be reduced greatly.The action of earthed switch 24 and the ground connection station of main switch assembly 1 link, and its two ends ground connection simultaneously when guaranteeing that fuse 233 is changed, also can meet switchgear simultaneously and close the requirement possessing visible fracture when dividing operation, security reliability strengthens.
Claims (6)
1. a fuse auxiliary earth switch module, it is characterized in that: it comprises the earthed switch (24) be electrically connected with fuse (23) and the insulating body (21) earthed switch (24) being carried out to sealing, the outer surface of insulating body (21) is coated with ground plane (22), described insulating body (21) front end offers connecting portion cavity volume (216), described earthed switch (24) comprises and to be electrically connected with the leading-out terminal of fuse (23) and the long conducting rod (241) that is connected with connecting portion cavity volume (216) rear end of front end, to be arranged in connecting portion cavity volume (216) and activity is connected to the ground connection connecting rod (242) in long conducting rod (241), be sheathed on ground connection connecting rod (242) elastic insulated plunger (243) outward, be positioned at the ground connection end cap (244) of connecting portion cavity volume (216) external port and be actively located in the insulated connecting rod (245) that ground connection end cap (244) is fixedly connected with elastic insulated plunger (243) and with ground connection connecting rod (242), during ground connection, ground connection end cap (244) and long conducting rod (241) are formed by the ground connection connecting rod (242) pulled by insulated connecting rod (245) and are electrically connected.
2. fuse auxiliary earth switch module according to claim 1, is characterized in that: described ground connection end cap (244) comprise the fixing inserts (2441) be embedded on the wall of connecting portion cavity volume (216) front end, with fixing inserts (2441) be threaded coordinate and with insulated connecting rod (245) perforating conduction termination (2442) and be located at the elastic conduction contact (2443) be electrically connected in insulated connecting rod (245) perforating and with conduction termination (2442); When ground connection connecting rod (242) is drawn out, ground connection connecting rod (242) is electrically connected with conduction termination (2442) by the elastic conduction contact (2443) leaned on ground connection connecting rod (242).
3. fuse auxiliary earth switch module according to claim 2, is characterized in that: described conduction termination (2442) top compression elasticity insulation plunger (243); When insulated connecting rod (245) inserts elastic insulated plunger (243), insulated connecting rod (245) and elastic insulated plunger (243) are interference fit.
4. the fuse auxiliary earth switch module according to claim 1-3 any one, it is characterized in that: described insulating body (21), its termination being positioned at long conducting rod (241) rear end is the taper butt joint (217) of the outer bevel-type Structure composing of employing standard, the uncoated ground plane of outer surface (22) of taper butt joint (217).
5. fuse auxiliary earth switch module according to claim 4, is characterized in that: the bottom of described taper butt joint (217) is provided with convex annular along (218).
6. fuse auxiliary earth switch module according to claim 4, is characterized in that: described taper butt joint (217) is provided with around long conducting rod (241) with the junction of insulating body (21) main body and is embedded at the charged display shading ring (2411) in insulating body (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709302.1U CN204230136U (en) | 2014-11-21 | 2014-11-21 | Fuse auxiliary earth switch module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709302.1U CN204230136U (en) | 2014-11-21 | 2014-11-21 | Fuse auxiliary earth switch module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204230136U true CN204230136U (en) | 2015-03-25 |
Family
ID=52928203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420709302.1U Withdrawn - After Issue CN204230136U (en) | 2014-11-21 | 2014-11-21 | Fuse auxiliary earth switch module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204230136U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392862A (en) * | 2014-11-21 | 2015-03-04 | 国家电网公司 | Auxiliary ground switch component of fuse |
| CN111064111A (en) * | 2020-01-15 | 2020-04-24 | 云南电网有限责任公司电力科学研究院 | Inflatable switch cabinet |
-
2014
- 2014-11-21 CN CN201420709302.1U patent/CN204230136U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392862A (en) * | 2014-11-21 | 2015-03-04 | 国家电网公司 | Auxiliary ground switch component of fuse |
| CN111064111A (en) * | 2020-01-15 | 2020-04-24 | 云南电网有限责任公司电力科学研究院 | Inflatable switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150325 Effective date of abandoning: 20170811 |
|
| AV01 | Patent right actively abandoned |