CN207338656U - A kind of busbar connection structure for reducing contact resistance - Google Patents
A kind of busbar connection structure for reducing contact resistance Download PDFInfo
- Publication number
- CN207338656U CN207338656U CN201720899041.8U CN201720899041U CN207338656U CN 207338656 U CN207338656 U CN 207338656U CN 201720899041 U CN201720899041 U CN 201720899041U CN 207338656 U CN207338656 U CN 207338656U
- Authority
- CN
- China
- Prior art keywords
- busbar
- bolt
- contact resistance
- connecting hole
- connection structure
- 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 - Fee Related
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Abstract
The utility model discloses a kind of busbar connection structure for reducing contact resistance, including busbar, screw bolt and nut；Bolt connecting hole is offered at busbar faying surface, bolt is inserted into bolt connecting hole, and the connection of adjacent busbar is locked by screw bolt and nut.The utility model reduces contact resistance, can effectively reduce local temperature rise, improves equipment power supply reliability.
Description
Technical field
Distribution power supply technique field is the utility model is related to, more specifically, more particularly to one kind can reduce contact resistance
Busbar connection structure.
Background technology
Copper bar is also known as copper bus-bar or copper bus-bar, is made by copper material, rectangular cross-section or chamfering (fillet) rectangle
Long conductor (typically now all use fillet copper bar, in order to avoid produce point discharge), play conveying electric current in circuit and connection be electric
The effect of equipment.Copper bar is widely used in electrical equipment, particularly complete power distribution equipment.
The connection between copper bar in high-low voltage switch cabinet is fixed by bolt, the contact resistance that copper bar faying surface produces
When larger, local pyrexia is easily produced, and then influence the normal use of electrical equipment.
Therefore, the present inventor makes further research this, develops a kind of busbar connection structure for reducing contact resistance,
Thus this case produces.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of busbar connection structure for reducing contact resistance,
It reduces contact resistance, can effectively reduce local temperature rise, improves equipment power supply reliability.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of busbar connection structure for reducing contact resistance, including busbar, screw bolt and nut；Opened at busbar faying surface
Equipped with bolt connecting hole, bolt is inserted into bolt connecting hole, and the connection of adjacent busbar is locked by screw bolt and nut.
Further, packing ring is further included, packing ring is threaded through on bolt.
Further, bolt connecting hole is provided with two grooves along busbar axis side direction.
After using the above scheme so that the utility model structure very simple, by opening up bolt connecting hole on busbar,
Cooperate to connect two adjacent busbars using screw bolt and nut, due to opening up bolt connecting hole, in identical tools for bolts ' pretension
In the case of power, pressure and the strain of bigger can be produced at copper bar faying surface, makes busbar contact surface more firm, so as to reduce
The contact resistance of busbar junction.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of busbar in Fig. 1；
Fig. 3 is plain bolt hole and is provided with the stress diagram contrast that faying surface under special shaped screw bolt connecting hole goes out generation；
Fig. 4 is plain bolt hole and is provided with the strain figure contrast that faying surface under special shaped screw bolt connecting hole goes out generation.
Label declaration
3 packing ring of busbar 1 bolt connecting hole, 2 bolt, 4 nut 5
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.The utility model is revealed to be
A kind of busbar connection structure for reducing contact resistance, is the preferred embodiment of the utility model as depicted in figs. 1 and 2, including
Busbar 1, bolt 3 and nut 5.Bolt connecting hole 2 is offered at the faying surface of busbar 1, bolt 3 is inserted into bolt connecting hole 2,
It is locked between adjacent busbar 1 and is connected by bolt 3 and nut 5.
Further, further include packing ring 4, packing ring 4 is threaded through on bolt 3, so as to improve bolt 3 and nut 5 lock it is firm
Property.
Further, along bolt connecting hole 21 axis side direction of busbar be provided with two grooves.I.e. bolt connecting hole 2 is by bolt hole
With the groove composition opened up along 1 axis vertical direction of busbar.The effect of fluting is as follows：First, opening two sulculuses does not influence current-carrying copper bar
Through-current capability；2nd, copper bar contact surface tapping nearby can produce the contact stress of bigger after slotting, so as to reduce contact contact
Resistance；3rd, after slotting, upper and lower busbar has perforative aperture, and the Joule heat that the contact resistance of contact position produces can pass through fluid
Cooled down, heat dissipation effect is more preferable.
The utility model is simple in structure, by opening up bolt connecting hole 2 on busbar 1, overlaps and leads between adjacent busbar 1
Cross bolt 3 and nut 5 is locked.Since bolt 3 can be integrally put into bolt connecting hole 2, fixing nut 5 is conveniently tightened, no
Only make 1 junction of busbar be not easy to loosen, and can go out to provide answering for bigger in 1 faying surface of busbar under identical bolt pretightening
Power, thus produces the strain of bigger, so as to increase contact area, reduces contact resistance.
As shown in Figure 3 and Figure 4, under identical bolt pretightening, plain bolt hole and it is provided with faying surface under special shaped screw bolt hole
Go out the stress and strain contrast of generation.As shown in figure 3, being contrasted for stress diagram, left figure is the unit of stress produced under plain bolt
N/m2.As shown in figure 4, being contrasted for strain figure, left figure is the strain unit m produced under plain bolt.
The above descriptions are merely preferred embodiments of the present invention, and not the technical scope of the utility model is made
Any restrictions, therefore the change or modification done in every case according to the claim and specification of the utility model, should all belong to this practicality
Within the scope of new patent is covered.
Claims (2)
- A kind of 1. busbar connection structure for reducing contact resistance, it is characterised in that：Including busbar, screw bolt and nut；In busbar Bolt connecting hole is offered at faying surface, bolt is inserted into bolt connecting hole, and the connection of adjacent busbar is locked by screw bolt and nut Fasten, bolt connecting hole is provided with two grooves along busbar axis side direction.
- A kind of 2. busbar connection structure for reducing contact resistance according to claim 1, it is characterised in that：Further include pad Circle, packing ring are threaded through on bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899041.8U CN207338656U (en) | 2017-07-24 | 2017-07-24 | A kind of busbar connection structure for reducing contact resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899041.8U CN207338656U (en) | 2017-07-24 | 2017-07-24 | A kind of busbar connection structure for reducing contact resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207338656U true CN207338656U (en) | 2018-05-08 |
Family
ID=62376642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720899041.8U Expired - Fee Related CN207338656U (en) | 2017-07-24 | 2017-07-24 | A kind of busbar connection structure for reducing contact resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207338656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350414A (en) * | 2019-08-22 | 2019-10-18 | 山东光韵智能科技有限公司 | A kind of high-tension switch cabinet system and its high-tension switch cabinet replacing options |
-
2017
- 2017-07-24 CN CN201720899041.8U patent/CN207338656U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350414A (en) * | 2019-08-22 | 2019-10-18 | 山东光韵智能科技有限公司 | A kind of high-tension switch cabinet system and its high-tension switch cabinet replacing options |
| CN110350414B (en) * | 2019-08-22 | 2020-09-15 | 山东光韵智能科技有限公司 | High-voltage switch cabinet system and high-voltage switch cabinet replacement method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20210724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |