CN203774668U - Contact box - Google Patents
Contact box Download PDFInfo
- Publication number
- CN203774668U CN203774668U CN201420076736.2U CN201420076736U CN203774668U CN 203774668 U CN203774668 U CN 203774668U CN 201420076736 U CN201420076736 U CN 201420076736U CN 203774668 U CN203774668 U CN 203774668U
- Authority
- CN
- China
- Prior art keywords
- contact box
- cylindrical shell
- creepage
- incoming line
- line
- 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.)
- Expired - Lifetime
Links
- 230000002787 reinforcement Effects 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Patch Boards (AREA)
Abstract
The utility model discloses a contact box, which comprises a wire inlet, a wire outlet and a cylinder used for connecting the wire inlet and the wire outlet, wherein the wire inlet is elliptical, the wire outlet is circular, and a long axis of the elliptical wire inlet is greater than the diameter of the wire outlet. The internal heat convection of the contact box is accelerated because the wire outlet is elliptical, thereby improving the heat dissipation performance of the contact box, prolonging the service life of the contact box, and improving the operating safety of a switching device.
Description
Technical field
The utility model relates to power product field, relates in particular to a kind of for the contact box on air insulated switch equipment.
Background technology
Contact box is as insulating element common in air insulated switch equipment, and its function is insulation protection is provided and provides support for bus static contact to moving contact of breaker and bus static contact junction.
Because the dynamic/static contact in contact box is for being slidably connected, contact resistance is large, and caloric value is large, the poor problem of existing contact box ubiquity heat dispersion, easily causes the accumulation of contact box internal heat, causes contact box temperature high, reduce the useful life of contact box, affected the security of operation of switchgear.Especially, for the major loop of switchgear, due to the easy heat accumulation of existing contact box, and the connection of major loop is for being slidably connected, so the major loop junction temperature rise in contact box easily approaches the limit, reduces the safety in operation of switchgear.
Therefore, be necessary to design a kind of contact box of good heat dispersion performance.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of contact box of good heat dispersion performance is provided.
The technical solution of the utility model provides a kind of contact box, comprise incoming line, line outlet with for being connected the cylindrical shell of described incoming line and described line outlet, described incoming line is oval, and described line outlet is circular, and the major axis of oval-shaped described incoming line is greater than the diameter of described line outlet.
Preferably, the long axis vertical direction of oval-shaped described incoming line, minor axis along continuous straight runs.
Preferably, the minor axis side of described incoming line has creepage groove.
Preferably, on the upper surface of described cylindrical shell, offer a plurality of louvres.
Preferably, the upper surface of described cylindrical shell has the first creepage wall, and described the first creepage wall is the plate-shaped member along described barrel outer surface, between described the first creepage wall and described cylindrical shell, leaves space.
Preferably, described the first creepage wall is positioned at described incoming line side or described line outlet side.
Preferably, the lower edge of described line outlet extends the second creepage wall of half tubular along axis direction.
Preferably, there are a plurality of the first reinforcements the internal face of described cylindrical shell and the junction of described line outlet.
Preferably, there are a plurality of the second reinforcements the outside wall surface of described cylindrical shell and the junction of described incoming line.
Preferably, on the flange of described line outlet, there are a plurality of fixed contact installing holes.
Preferably, described cylindrical shell is smoothly transitted into described line outlet from described incoming line.
Preferably, the back side of described creepage groove is useful on the inserts of connecting valve apparatus casing.
Adopt after technique scheme, there is following beneficial effect: because incoming line is for oval, accelerated the internal heat convection current of contact box, improved the heat dispersion of contact box, increase the useful life of contact box, improved the safety in operation of switchgear simultaneously.
Accompanying drawing explanation
Fig. 1 is the stereogram of contact box in the utility model the first embodiment;
Fig. 2 is the stereogram at Fig. 1 back side;
Fig. 3 is the cutaway view of contact box in the utility model the first embodiment;
Fig. 4 is the front view of the incoming line side of contact box in the utility model the first embodiment;
Fig. 5 is the stereogram of contact box in the utility model the second embodiment;
Fig. 6 is the stereogram of contact box in the utility model the 3rd embodiment.
The Reference numeral table of comparisons:
1-incoming line 2-line outlet 3-cylindrical shell
11-is creepage groove 12-inserts 21-the second creepage wall
22-fixed contact installing hole 31-first is creepage wall 32-louvre
33-first reinforcement 34-the second reinforcement
Embodiment
Below in conjunction with accompanying drawing, further illustrate embodiment of the present utility model.
Referring to Fig. 1, Fig. 1 is the stereogram of contact box in the utility model the first embodiment.Contact box comprise incoming line 1, line outlet 2 with for being connected the cylindrical shell 3 of incoming line 1 and line outlet 2, incoming line 1 is oval, line outlet 2 be circle, the major axis of oval-shaped incoming line 1 is greater than the diameter of line outlet 2.In the present embodiment, long axis Y-direction arranges, and as shown in Figure 4, major axis is positioned on straight line L1.Cylindrical shell 3 forms the structure that is similar to conically shaped, and the opening of incoming line 1 is larger, and the opening of line outlet 2 is less.Because incoming line is oval, accelerated the internal heat convection current of contact box, improved the heat dispersion of contact box, increased the useful life of contact box, improved the safety in operation of switchgear simultaneously.
In the present embodiment, as shown in Figure 1, cylindrical shell 3 is smoothly transitted into line outlet 2 from incoming line 1, and the curvature of cylindrical shell 3 changes transition continuously.Because cylindrical shell seamlessly transits, cylindrical shell has larger angle of reflection, is conducive to thermal radiation.
In the present embodiment, as shown in Figure 1-2, the long axis vertical direction of oval-shaped incoming line 1, minor axis along continuous straight runs.In figure, X refers to horizontal direction, and Y refers to vertical direction.Horizontal direction and vertical direction refer to that contact box is arranged on the orientation after switchgear.As shown in Figure 4, minor axis is positioned on straight line L2.Because most of convection gas upwards flows, long axis vertical direction, makes convection current more smooth and easy, accelerates contact box internal heat dissipating.In addition, minor axis along continuous straight runs, has shortened the spaced apart between contact box and switchgear miscellaneous part, makes the layout of switchgear compacter.
In the present embodiment, as shown in Figure 2, the minor axis side of incoming line 1 has creepage groove 11, and creepage groove 11 can be one-body molded with the flange of incoming line 1.Because the distance of incoming line 1 horizontal direction is shorter, creepage groove 11 is formed on the minor axis both sides of incoming line 1, is conducive to increase the creepage distance of horizontal direction, improves insulation property.Creepage distance refers to the beeline between two conductive parts that record along insulating surface.Under different service conditions, because conductor insulating material is around by electric polarization, cause insulating material to present electrification phenomenon, the radius of this live zone is creepage distance.Therefore, increase creepage distance, be conducive to improve insulation property.
In the present embodiment, as shown in figures 1 and 3, the back side of creepage groove 11 is useful on the inserts 12 of connecting valve apparatus casing, is beneficial to the mounting arrangements of contact box in switchgear.
In the present embodiment, as shown in Figure 1-2, it is the plate-shaped member along cylindrical shell 3 outer surfaces that the upper surface of cylindrical shell 3 has the creepage wall 31 of the first creepage wall 31, the first, between the first creepage wall 31 and cylindrical shell 3, leaves space.The first creepage wall 31 can be arranged for the upper surface along cylindrical shell 3 after plate-shaped member bending.Owing to leaving space between the first creepage wall 31 and cylindrical shell 3, increased the creepage distance of contact box in X and Y-direction, improved insulation property.Gap is larger, and creepage distance is also larger.
In the present embodiment, the first creepage wall 31 is positioned at incoming line 1 side.Particularly, a side and the incoming line 1 of the first creepage wall 31 are close to, and another side is positioned at the top of cylindrical shell 3.
Preferably, as shown in Figure 5, Fig. 5 is the stereogram of contact box in the utility model the second embodiment.The first creepage wall 31 is positioned at line outlet 2 sides.Particularly, a side of the first creepage wall 31 is near line outlet 2, and another side is positioned at the top of cylindrical shell 3.
In the present embodiment, as shown in Figure 1-2, the lower edge of line outlet 2 extends the second creepage wall 21 of half tubular along axis direction.The second creepage wall 21 is for increasing contact box creepage distance in axial direction.So-called axis direction refers to the straight line in the center of circle of vertical and orbicular line outlet 2.
Preferably, the creepage wall 31 of creepage groove 11, first and the second creepage wall 21 be according to the needs of the insulation property of contact box, can combination in any, can there is three simultaneously, and also can only have wherein any one or two.
In the present embodiment, as shown in Figure 3, there are a plurality of the first reinforcements 33 junction of the internal face of cylindrical shell 3 and line outlet 2, has strengthened the dynamic and thermal effect performance of contact box as electric strutting piece.
In the present embodiment, as shown in Figure 1-2, there are a plurality of the second reinforcements 34 junction of the outside wall surface of cylindrical shell 3 and incoming line 1, can play equally the effect of the dynamic and thermal effect performance that strengthens contact box.
In the present embodiment, as shown in Figure 1, on the flange of line outlet 2, there are a plurality of fixed contact installing holes 22, for being fixedly connected with bus static contact.
The present embodiment, as shown in Figure 1-2, offers a plurality of louvres 32 on the upper surface of cylindrical shell 3.Louvre 32 adopts one-sided setting, and is positioned at the upper surface of cylindrical shell 3, further improves the heat dispersion of contact box, improves switch cubicle safety in operation.
Preferably, as shown in Figure 6, Fig. 6 is the stereogram of contact box in the utility model the 3rd embodiment.When the contact box with oval-shaped incoming line 1 has met heat dispersion, also louvre 32 can be set.
Above-described is only principle of the present utility model and preferred embodiment.It should be pointed out that for the person of ordinary skill of the art, on the basis of the utility model principle, can also make some other modification, also should be considered as protection range of the present utility model.
Claims (12)
1. a contact box, comprise incoming line (1), line outlet (2) with for being connected the cylindrical shell (3) of described incoming line (1) and described line outlet (2), it is characterized in that, described incoming line (1) is oval, described line outlet (2) is circular, and the major axis of oval-shaped described incoming line (1) is greater than the diameter of described line outlet (2).
2. contact box according to claim 1, is characterized in that, the long axis vertical direction of oval-shaped described incoming line (1), minor axis along continuous straight runs.
3. contact box according to claim 1, is characterized in that, the minor axis side of described incoming line (1) has creepage groove (11).
4. contact box according to claim 1, is characterized in that, offers a plurality of louvres (32) on the upper surface of described cylindrical shell (3).
5. according to the contact box described in claim 1-4 any one, it is characterized in that, the upper surface of described cylindrical shell (3) has the first creepage wall (31), described the first creepage wall (31) is the plate-shaped member along described cylindrical shell (3) outer surface, between described the first creepage wall (31) and described cylindrical shell (3), leaves space.
6. contact box according to claim 5, is characterized in that, described the first creepage wall (31) is positioned at described incoming line (1) side or described line outlet (2) side.
7. according to the contact box described in claim 1-4 any one, it is characterized in that, the lower edge of described line outlet (2) extends the second creepage wall (21) of half tubular along axis direction.
8. according to the contact box described in claim 1-4 any one, it is characterized in that, there are a plurality of the first reinforcements (33) junction of the internal face of described cylindrical shell (3) and described line outlet (2).
9. according to the contact box described in claim 1-4 any one, it is characterized in that, there are a plurality of the second reinforcements (34) junction of the outside wall surface of described cylindrical shell (3) and described incoming line (1).
10. according to the contact box described in claim 1-4 any one, it is characterized in that on the flange of described line outlet (2), there are a plurality of fixed contact installing holes (22).
11. according to the contact box described in claim 1-4 any one, it is characterized in that, described cylindrical shell (3) is smoothly transitted into described line outlet (2) from described incoming line (1).
12. contact boxs according to claim 3, is characterized in that, the back side of described creepage groove (11) is useful on the inserts (12) of connecting valve apparatus casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420076736.2U CN203774668U (en) | 2014-02-21 | 2014-02-21 | Contact box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420076736.2U CN203774668U (en) | 2014-02-21 | 2014-02-21 | Contact box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774668U true CN203774668U (en) | 2014-08-13 |
Family
ID=51291820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420076736.2U Expired - Lifetime CN203774668U (en) | 2014-02-21 | 2014-02-21 | Contact box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774668U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356788A (en) * | 2016-10-05 | 2017-01-25 | 天津市先智电气设备有限公司 | Insulation probe case with integrated busbars |
| CN111313242A (en) * | 2020-03-10 | 2020-06-19 | 浙江省开化七一电力器材有限责任公司 | Contact box detection device for high-voltage switch cabinet |
| CN113224648A (en) * | 2020-02-06 | 2021-08-06 | Abb瑞士股份有限公司 | Bushing for medium voltage switchgear |
-
2014
- 2014-02-21 CN CN201420076736.2U patent/CN203774668U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356788A (en) * | 2016-10-05 | 2017-01-25 | 天津市先智电气设备有限公司 | Insulation probe case with integrated busbars |
| CN106356788B (en) * | 2016-10-05 | 2018-07-06 | 天津市先智电气设备有限公司 | Busbar integral type insulation contact box |
| CN113224648A (en) * | 2020-02-06 | 2021-08-06 | Abb瑞士股份有限公司 | Bushing for medium voltage switchgear |
| CN111313242A (en) * | 2020-03-10 | 2020-06-19 | 浙江省开化七一电力器材有限责任公司 | Contact box detection device for high-voltage switch cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203733570U (en) | Heat dissipation device of high-frequency switching mode power supply transformer | |
| CN203774668U (en) | Contact box | |
| CN203218431U (en) | Cavity Bridge | |
| CN203503542U (en) | Double-break tank vacuum circuit breaker | |
| CN207038935U (en) | A kind of open type large current contact box | |
| CN206516412U (en) | Temperature alarm type copper busbar | |
| CN201725927U (en) | Large-current conductor connection structure for GIS | |
| CN205984672U (en) | Be applicable to high -tension apparatus high current switch contact | |
| CN103560454A (en) | Bus support shaped like Chinese character 'shan' and used for three-phase bus arrangement | |
| CN204375682U (en) | Arc quenching chamber structure in a kind of breaker of plastic casing | |
| CN203118519U (en) | Large-area self- heat-dissipation copper busbar | |
| CN208722805U (en) | Gas-filling cabinet pole | |
| CN202434411U (en) | Solid-sealed polar pole of high-voltage vacuum circuit breaker | |
| CN201904586U (en) | Wall bushing of rectangular conductor | |
| CN202749290U (en) | Embedded pole | |
| CN102938305B (en) | Super extra-high-voltage alternating current transformer outgoing line device | |
| CN202258769U (en) | Handstand sulfur hexafluoride (SF6) gas insulation current transformer | |
| CN105762006B (en) | A kind of great-current fixed sealed pole of gas-filling cabinet | |
| CN207282393U (en) | The primary conductive circuit of breaker | |
| CN204558350U (en) | Great-current fixed sealed pole | |
| CN203536289U (en) | An insulating box for a vacuum circuit breaker | |
| CN205004248U (en) | On seat of being qualified for next round of competitions | |
| CN204424152U (en) | A kind of upper wire outlet seat of pole and pole | |
| CN204497122U (en) | A kind of high voltage isolator | |
| CN208045397U (en) | A kind of high current indoor high-voltage vacuum circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180524 Address after: Baden, Switzerland Patentee after: ABB Switzerland Co.,Ltd. Address before: Zurich Patentee before: ABB TECHNOLOGY Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |