CN219811452U - Circuit breaker drawer seat busbar - Google Patents
Circuit breaker drawer seat busbar Download PDFInfo
- Publication number
- CN219811452U CN219811452U CN202321009195.7U CN202321009195U CN219811452U CN 219811452 U CN219811452 U CN 219811452U CN 202321009195 U CN202321009195 U CN 202321009195U CN 219811452 U CN219811452 U CN 219811452U
- Authority
- CN
- China
- Prior art keywords
- aluminum
- seat
- copper
- circuit breaker
- busbar
- 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.)
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 79
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 79
- 239000010949 copper Substances 0.000 claims abstract description 63
- 229910052802 copper Inorganic materials 0.000 claims abstract description 63
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000004411 aluminium Substances 0.000 claims 1
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 4
- 230000008719 thickening Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a circuit breaker drawer seat busbar, an aluminum seat and a copper belt; the front surface of the aluminum seat is in a step shape, the front surface of the step at the top is provided with a copper belt, and the back surface of the aluminum seat is also provided with a copper belt which is opposite to the copper belt of the step at the top of the aluminum seat; the front or back of the step at the bottom of the aluminum seat is also provided with a copper belt, and the copper belt is arranged on the aluminum seat through bonding. According to the circuit breaker drawer seat busbar, the copper strips are bonded to the aluminum seat, so that good electric conduction between the circuit breaker drawer seat busbar and the drawer seat is ensured, and meanwhile cost is reduced.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker drawer base busbar.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker can be used for distributing electric energy, starting the asynchronous motor infrequently, protecting a power line, the motor and the like, and automatically cutting off the circuit when serious overload or short circuit, undervoltage and other faults occur, and the functions of the circuit breaker are equivalent to the combination of a fuse type switch, an over-under-heating relay and the like. And the parts are not required to be changed after breaking the fault current.
In a common circuit breaker, such as the DW45 model, the busbar performs its relevant function by being connected to the circuit breaker drawer base, and is usually made of all copper in order to achieve sufficient conductivity, so that the cost thereof has been difficult to reduce.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a busbar of a circuit breaker drawer seat, which aims to solve the technical problem that the busbar in the background art is made of all copper and is difficult to reduce cost.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a circuit breaker drawer seat busbar comprises an aluminum seat and a copper belt;
the front surface of the aluminum seat is in a step shape, the copper strip is arranged on the front surface of the step at the top, and the copper strip is also arranged on the back surface of the aluminum seat and is opposite to the copper strip of the step at the top of the aluminum seat; the front or back of the step at the bottom of the aluminum seat is also provided with the copper strip, and the copper strip is arranged on the aluminum seat through bonding.
Compared with the prior art, the copper strips are respectively bonded at two sides of the aluminum seat, the copper strips at the top are used for being connected with the drawer seat, the copper strips at the bottom are used for being connected with the support bars, the cost of the busbar can be reduced by adopting the scheme because the price of aluminum is lower than that of copper, and the weight of the busbar can be reduced because the aluminum is lighter than that of copper, so that the difficulty of installation is reduced. In addition, the copper strip can be well connected with the aluminum seat through bonding, and compared with the traditional welding or riveting technology, the copper strip can be well connected with the aluminum seat through bonding.
Further, the bottom thickness of the aluminum seat is greater than the top thickness. The conductivity of the aluminum base can be increased by thickening the bottom of the aluminum base.
Further, the aluminum seat is in a step shape which is thickened in sequence from high to low, three layers are arranged, and the second layer is provided with a mounting hole. After the aluminum seat is inserted through the step thickening, the step can play a limiting role.
Further, a boss is further arranged at the top end of the aluminum seat. The circuit breaker drawer can be clamped after the aluminum seat is inserted through the boss.
Further, the top surface of the boss and the top surface of the aluminum seat are coplanar, and the copper strip close to the boss is arranged between the boss and the second-layer step of the aluminum seat.
Further, the copper strip near the boss is fully paved between the boss and the second layer of steps of the aluminum seat.
Further, the two copper strips close to the top surface of the aluminum seat are the same in size.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.
FIG. 1 is a schematic diagram of a busbar for a circuit breaker drawer base according to an embodiment of the present utility model;
fig. 2 is a schematic view of the circuit breaker drawer base busbar of fig. 1 after being mounted with a connecting plate.
Reference numerals:
1-an aluminum seat 1; 11-mounting holes;
2-copper strips;
3-boss;
4-connecting plates.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
Referring to fig. 1 and 2 together, the present embodiment provides a busbar for a drawer of a circuit breaker, which includes an aluminum base 1 and a copper strip 2.
The front of the aluminum seat 1 is in a ladder shape, the front of the ladder at the top is provided with a copper strip 2, the back of the aluminum seat 1 is also provided with the copper strip 2, the copper strip 2 is opposite to the copper strip 2 at the ladder at the top of the aluminum seat 1, the front or the back of the ladder at the bottom of the aluminum seat 1 is also provided with the copper strip 2, and the copper strip 2 is arranged on the aluminum seat 1 through bonding. The copper strip 2 on the back of the aluminum base 1 is preferably horizontally arranged on the aluminum base 1, namely, the outer surface of the copper strip on the back of the aluminum base 1 is coplanar with the back of the aluminum base 1.
It should be understood that copper strips 2 near the top surface of the aluminum base 1 and located at two sides are used for being connected with the drawer base of the circuit breaker to realize copper-copper connection, namely, connection between the drawer base and the busbar is also realized through copper-copper contact connection, the bottom of the copper strips is connected with the branch bars in the same way, the copper strips 2 on the bottom are used for being connected with the branch bars, and preferably, through holes extending to the inside of the aluminum base 1 are formed in the copper strips 2 on the bottom for installing the branch bars.
According to the utility model, the copper strips 2 are respectively bonded at two sides of the aluminum seat 1, the copper strips 2 at the top are used for being connected with the drawer seat, the copper strips 2 at the bottom are used for being connected with the branch bars, the cost of the busbar can be reduced by adopting the scheme because the price of aluminum is lower than that of copper, and the busbar can also lighten the weight of the busbar because the aluminum is lighter than that of copper, so that the installation difficulty is reduced, the copper strips 2 which are close to the top surface of the aluminum seat 1 and are positioned at two sides are connected with the drawer seat of the circuit breaker, copper-copper connection is realized, and good electric conduction between the copper-copper connection is ensured. In addition, the copper strip 2 can be well connected with the aluminum seat 1 through bonding, and compared with the traditional welding or riveting technology, the copper strip 2 can be well connected with the aluminum seat 1 through bonding.
In other aspects, the bottom thickness of the aluminum base 1 is greater than the top thickness. The conductivity of the aluminum base 1 can be increased by thickening the bottom thereof.
In other schemes, the aluminum seat 1 is in a step shape which is thickened in sequence from high to low, and is provided with three layers, and the second layer is provided with a mounting hole 11. After the aluminum seat 1 is inserted through the step thickening, the step can play a limiting role. That is, the step can abut the drawer seat. It should be understood that the mounting holes 11 are used to mount the connection plates 4, the connection plates 4 being provided at both sides of the aluminum holder 1 and connecting the aluminum holder 1 to the circuit breaker, specifically, at the time of mounting, the aluminum holder 1 is inserted and caught in the drawer holder, and then the aluminum holder 1 is connected to the circuit breaker by bolts or screws or the like.
In other schemes, the top end of the aluminum seat 1 is also provided with a boss 3. The circuit breaker drawer can be clamped after the aluminum seat 1 is inserted through the boss 3. It should be appreciated that the drawer housing rotates to both sides when the aluminum housing 1 is inserted, and then after the boss 3 is inserted, the drawer housing resets and catches the boss 3, restricting the boss 3 from moving outward.
In other schemes, the top surface of the boss 3 and the top surface of the aluminum seat 1 are coplanar, and the copper strip 2 close to the boss 3 is arranged between the boss 3 and the second layer of steps of the aluminum seat 1. By this structure, the second step can limit the excessive insertion of the aluminum seat 1 after the aluminum seat 1 is inserted into the drawer seat.
In other schemes, the copper strip 2 near the boss 3 is fully paved between the boss 3 and the second layer of steps of the aluminum seat 1. By fully spreading the copper strip 2, the copper strip 2 has good contact with the drawer base at any position in the drawer base.
In other embodiments, the two copper strips 2 near the top surface of the aluminum base 1 are the same size. By setting the two parts to be the same in size, the two sides of the drawer seat can have the same contact surface. It should also be understood that the projections of the two copper strips 2 near the top surface are identical.
According to the circuit breaker drawer seat busbar, the copper strips 2 are bonded to the aluminum seat 1, so that good electric conduction between the circuit breaker drawer seat busbar and the drawer seat is ensured, and meanwhile cost is reduced.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (7)
1. The circuit breaker drawer seat busbar is characterized by comprising an aluminum seat and a copper belt;
the front surface of the aluminum seat is in a step shape, the copper strip is arranged on the front surface of the step at the top, and the copper strip is also arranged on the back surface of the aluminum seat and is opposite to the copper strip of the step at the top of the aluminum seat; the front or back of the step at the bottom of the aluminum seat is also provided with the copper strip, and the copper strip is arranged on the aluminum seat through bonding.
2. The circuit breaker drawer housing busbar of claim 1, wherein the aluminum housing has a bottom thickness that is greater than a top thickness.
3. The circuit breaker drawer base busbar of claim 2, wherein the aluminum base is in a step shape which is thickened in sequence from high to low, and is provided with three layers, and the second layer is provided with a mounting hole.
4. A circuit breaker drawer base busbar as claimed in claim 3 wherein the aluminium base top end is further provided with a boss.
5. The circuit breaker drawer housing busbar of claim 4 wherein the top surface of the boss and the top surface of the aluminum housing are coplanar and the copper strap adjacent the boss is disposed between the boss and the second level of the aluminum housing.
6. The breaker drawer base busbar of claim 5, wherein the copper tape adjacent to the boss is layered between the boss and a second level of the aluminum base.
7. The circuit breaker drawer housing busbar of claim 6 wherein two of said copper strips adjacent to said aluminum housing top surface are the same size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321009195.7U CN219811452U (en) | 2023-04-28 | 2023-04-28 | Circuit breaker drawer seat busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321009195.7U CN219811452U (en) | 2023-04-28 | 2023-04-28 | Circuit breaker drawer seat busbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219811452U true CN219811452U (en) | 2023-10-10 |
Family
ID=88214920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321009195.7U Active CN219811452U (en) | 2023-04-28 | 2023-04-28 | Circuit breaker drawer seat busbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219811452U (en) |
-
2023
- 2023-04-28 CN CN202321009195.7U patent/CN219811452U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |