CN202711730U - Complete switch equipment bus having H-shaped cross section, and overlapping device thereof - Google Patents
Complete switch equipment bus having H-shaped cross section, and overlapping device thereof Download PDFInfo
- Publication number
- CN202711730U CN202711730U CN 201220297829 CN201220297829U CN202711730U CN 202711730 U CN202711730 U CN 202711730U CN 201220297829 CN201220297829 CN 201220297829 CN 201220297829 U CN201220297829 U CN 201220297829U CN 202711730 U CN202711730 U CN 202711730U
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- bus
- switch equipment
- shaped cross
- complete switch
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Abstract
The utility model provides a complete switch equipment bus having an H-shaped cross section. The complete switch equipment bus is characterized in that the bus has an H-shaped cross section, two U-shaped grooves are formed in two narrow surfaces of the bus respectively, and the contact plane is a flat wide surface. The utility model further provides an overlapping device of the complete switch equipment bus having an H-shaped cross section. The overlapping device is characterized in that the clinging of the contact planes of two buses having an H-shaped cross section is realized through fastening bolts. Compared with a conventional bus having a rectangular cross section, the complete switch equipment bus having an H-shaped cross section provided in the utility model has advantages of higher rigidity, larger surface area, good accident resistance and good heat dissipation effect, and the overlapping device of the complete switch equipment bus has advantages of large effective contact area, small contact resistance and small heat productivity, so the overall technical performance of the switch equipment is improved. The application further provides an overlapping device of the complete switch equipment bus having an H-shaped cross section.
Description
Technical field
The utility model relates to a kind of switchgear assembly " H " type cross section bus and lap device thereof, be used for switchgear assembly production, manufacture process, improve the rigidity of the bus in the primary circuit in the switchgear, reduce the caloric value at busbar joint place, belong to power transmission and distribution industry technology field.
Background technology
In power transmission and transformation system, switchgear assembly is extremely important part, is realizing conveying and the distribution of electric energy.In the production of switchgear assembly, manufacture process, bus is the conductive carrier of primary circuit, and is connected major component (such as circuit breaker etc.) and connects on request, assembles, and forms the primary circuit of switchgear.The effect of bus is to compile, distribute and transmit electric energy, generally selects by the temperature rise principle, and when in the bus during by rated current, its temperature rise should not be elevated to allowable value.Comparatively speaking, the temperature of its joint than the temperature of other parts on the bus rise sooner, caloric value is larger, the temperature rise that solves its joint is that the primary circuit median generatrix is normal, the key of safe operation.
The most frequently used bus is that the cross section is the rectangular bus bar of rectangle in the switchgear assembly at present, and overlapping mode commonly used is to open installing hole, its assembling is firm with securing member at joint area between the rectangular bus bar, and electric current passes through in the assurance primary circuit.There are following shortcoming in rectangular bus bar and lap device commonly used thereof:
1, rectangular bus bar is the section bar that forms by drawing, considers technical matters and processing cost, and its surface roughness, flatness generally are not very high, and the contact effect of contact-making surface is not very desirable during assembling;
2, the material of rectangular bus bar is generally copper or aluminium, and Material Strength is relatively soft, is being subject under the External Force Acting, easily produces larger distortion, has influence on the overlap joint effect of contact-making surface;
3, when assembling with securing member, owing to being subject to larger active force, its contact situation is better near the securing member place, because the distortion of bus, its effective contact area is not very large away from the contact-making surface at securing member place, and contact resistance is higher, is easy to heating;
4, the simple shape of rectangular bus bar, the external force resistance effect is little, bus under fault state owing to being subject to very large electrodynamic action, more yielding, the hidden danger that has the fault of making further to enlarge.
Summary of the invention
The technical problems to be solved in the utility model is for rectangular bus bar in the existing switchgear assembly and the deficiency of building device thereof, by changing the shape of busbar cross-section, provides a kind of " H " type cross section bus and lap device thereof that increases rigidity and radiating effect.
In order to solve above-mentioned first technical problem, the technical solution of the utility model provides a kind of switchgear assembly " H " type cross section bus, it is characterized in that: busbar cross-section is " H " type, and two U-lags are located at respectively on two leptoprosopy of bus, and contact plane is smooth wide.
In order to solve above-mentioned second technical problem, the technical solution of the utility model provides a kind of switchgear assembly " H " type cross section busbar shiplap joint device, it is characterized in that: the contact plane of two " H " type cross section buses is close to by fastening bolt.
Preferably, described fastening bolt is 4.
A kind of switchgear assembly " H " font cross section bus that the utility model provides is compared with traditional rectangular cross section bus, in the situation that busbar cross-section area and bus thickness are constant, " H " font cross section bus rigidity is higher, surface area is larger.Rigidity increases, and can increase bus to the resistance of the larger external force of burst accident generation, makes it not yielding, has improved system's Operation safety, reliability; Surface area increases, and radiating effect is better, and the heat that the joint produces when two busbar shiplap joints also can be very fast to outdiffusion.When length, material, area of section and thickness homogeneous phase while, " H " font cross section bus is compared traditional rectangular cross section bus in same temperature rise situation, can allow the larger electric current that passes through of bus.
A kind of switchgear assembly " H " font cross section busbar shiplap joint device that the utility model provides makes that the contact plane of two " H " type cross section buses is close to, U-lag is outside, its contact-making surface is even curface, fastening bolt is positioned on the contact plane, make the stressed more even of contact-making surface place, effectively contact area is larger, contact resistance is reduced greatly, also reduced caloric value simultaneously.
A kind of switchgear assembly " H " type cross section bus that the utility model provides compares that traditional rectangular cross section bus rigidity is higher, surface area is larger, strong and the good heat dissipation effect to the burst accident resistance, it builds that the effective contact area of device is large, contact resistance and caloric value are little, has improved the overall technology performance of switchgear.
Description of drawings
A kind of switchgear assembly " H " type cross section bus schematic diagram that Fig. 1 provides for the utility model;
A kind of switchgear assembly " H " type cross section busbar shiplap joint device front view that Fig. 2 provides for the utility model;
A kind of switchgear assembly " H " type cross section busbar shiplap joint device vertical view that Fig. 3 provides for the utility model;
A kind of switchgear assembly " H " type cross section busbar shiplap joint device side view that Fig. 4 provides for the utility model;
Fig. 5 is " H " type cross section bus schematic diagram to be assembled in the present embodiment;
Description of reference numerals
The 1-bus; The 2-fastening bolt; 3-U shape groove; The 4-installing hole; The 5-contact plane.
Embodiment
For the utility model is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
A kind of switchgear assembly " H " type cross section bus schematic diagram that Fig. 1 provides for the utility model, described a kind of switchgear assembly " H " type cross section busbar cross-section is " H " type, two U-lags 3 lay respectively on two leptoprosopy of bus, and contact plane 5 is smooth wide.
In conjunction with Fig. 2-Fig. 5, during assembling, correspondence position on the contact plane 5 of two " H " type cross section buses is all stamped installing hole 4 first, the general installing hole 4 of making a call to 4 quadrates layouts, two contact planes 5 on " H " type cross section bus 1 are close to, alignment bus installing hole 4, with 4 fastening bolts 2 pass installing hole 4 assemble, fastening, finish whole assembling process.Fastening bolt 2 is working standard spare, is furnished with nut, bullet pad and plain cushion.
Claims (3)
1. a switchgear assembly " H " type cross section bus is characterized in that: bus (1) cross section is " H " type, and two U-lags (3) are located at respectively on two leptoprosopy of bus, and contact plane (5) is smooth wide.
2. a switchgear assembly " H " type cross section busbar shiplap joint device, it is characterized in that: the contact plane (5) of two " H " word cross section buses (1) is close to by fastening bolt (2).
3. a kind of switchgear assembly as claimed in claim 2 " H " type cross section busbar shiplap joint device, it is characterized in that: described fastening bolt (2) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297829 CN202711730U (en) | 2012-06-22 | 2012-06-22 | Complete switch equipment bus having H-shaped cross section, and overlapping device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297829 CN202711730U (en) | 2012-06-22 | 2012-06-22 | Complete switch equipment bus having H-shaped cross section, and overlapping device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202711730U true CN202711730U (en) | 2013-01-30 |
Family
ID=47592010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220297829 Expired - Lifetime CN202711730U (en) | 2012-06-22 | 2012-06-22 | Complete switch equipment bus having H-shaped cross section, and overlapping device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202711730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723124A (en) * | 2012-06-22 | 2012-10-10 | 正泰电气股份有限公司 | 'H'-shaped section bus of switchgear set and lapping device of 'H'-shaped section bus of switchgear set |
-
2012
- 2012-06-22 CN CN 201220297829 patent/CN202711730U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723124A (en) * | 2012-06-22 | 2012-10-10 | 正泰电气股份有限公司 | 'H'-shaped section bus of switchgear set and lapping device of 'H'-shaped section bus of switchgear set |
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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 |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |