CN219418927U - High-current circuit breaker - Google Patents
High-current circuit breaker Download PDFInfo
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- CN219418927U CN219418927U CN202320189360.5U CN202320189360U CN219418927U CN 219418927 U CN219418927 U CN 219418927U CN 202320189360 U CN202320189360 U CN 202320189360U CN 219418927 U CN219418927 U CN 219418927U
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- 238000003466 welding Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A high current circuit breaker, comprising: a three-phase circuit breaker; the high current circuit breaker further includes: an input bus connection bus, an output bus connection bus, an input end bus group and an output end bus group; the input bus connection bus is sequentially connected with the first input conductive contact, the second input conductive contact and the third input conductive contact; the output bus connection bus is sequentially connected with the first output conductive contact, the second output conductive contact and the third output conductive contact; one end of the input end bus group is connected with an input bus connection bus, and the other end is an input connection end; one end of the output end bus group is connected with the output bus connection bus, and the other end is an output connection end. The high-current circuit breaker is reformed by the three-phase circuit breaker, and only the input bus connection bus, the output bus connection bus, the input end bus group and the output end bus group are added, so that the high-current circuit breaker has a simple structure and low cost, and can greatly improve rated current of the circuit breaker.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a high-current circuit breaker.
Background
Circuit breakers are switching devices capable of closing, carrying and breaking current under normal circuit conditions, and are very widely used in the power electronics industry. As the electrical equipment of the power electronics system is more and more powerful, the current through the circuit breaker is also higher and higher. The rated current of the three-phase circuit breaker commonly used in the prior art is usually smaller, and the circuit breaker with larger rated current has very complex structure and high cost.
In order to meet the use requirements of electric equipment with increasingly high power, a high-current breaker with simple structure and low cost is urgently needed.
Disclosure of Invention
The utility model aims to avoid the defects in the prior art and provide a high-current breaker with simple structure and low cost, and aims to solve one of the technical problems.
A high current circuit breaker, comprising: a three-phase circuit breaker having a first input conductive contact, a second input conductive contact, a third input conductive contact, a first output conductive contact, a second output conductive contact, a third output conductive contact; the high-current circuit breaker further includes: an input bus connection bus, an output bus connection bus, an input end bus group and an output end bus group; the input bus connection bus is sequentially connected with the first input conductive contact, the second input conductive contact and the third input conductive contact; the output bus connection bus is sequentially connected with the first output conductive contact, the second output conductive contact and the third output conductive contact; one end of the input end bus group is connected with the input bus connection bus, and the other end is an input connection end; and one end of the output end bus group is connected with the output bus connection bus, and the other end is an output connection end.
Preferably, the input terminal bus bar group includes a first input bus bar and a second input bus bar, the output terminal bus bar group includes a first output bus bar and a second output bus bar, one end of the first input bus bar is connected to a position of the input bus bar between the first input conductive contact and the second input conductive contact, one end of the second input bus bar is connected to a position of the input bus bar between the second input conductive contact and the third input conductive contact, and one end of the first output bus bar is connected to a position of the output bus bar between the first output conductive contact and the second output conductive contact; one end of the second output bus is connected with the position, between the second output conductive contact and the third output conductive contact, of the output bus, the other end of the first input bus and the other end of the second input bus are connected to form an input connection end, and the other end of the first output bus and the other end of the second output bus are connected to form an output connection end.
Preferably, one end of the first input bus is connected to an intermediate position of the input bus between the first input conductive contact and the second input conductive contact, one end of the second input bus is connected to an intermediate position of the input bus between the second input conductive contact and the third input conductive contact, and one end of the first output bus is connected to an intermediate position of the output bus between the first output conductive contact and the second output conductive contact; one end of the second output bus bar is connected with an intermediate position of the output bus bar, which is positioned between the second output conductive contact and the third output conductive contact.
Preferably, the input bus bar is welded on the first input conductive contact, the second input conductive contact and the third input conductive contact; the output bus connection bus is welded on the first output conductive contact, the second output conductive contact and the third output conductive contact.
Preferably, the first input bus bar and the second input bus bar are welded on the input bus bar, and the first output bus bar and the second output bus bar are welded on the output bus bar.
Preferably, first wiring holes are respectively formed at corresponding positions where the first input bus and the second input bus are connected with each other, and the first input bus and the second input bus are connected by welding.
Preferably, second wiring holes are respectively arranged at corresponding positions where the first output bus and the second output bus are connected with each other, and the first output bus and the second output bus are connected through welding.
Preferably, the input bus connection bus and the output bus connection bus are copper buses.
Preferably, the first input bus bar, the second input bus bar, the first output bus bar and the second output bus bar are all copper bus bars.
Compared with the prior art, the utility model has the following advantages: the high-current circuit breaker comprises a three-phase circuit breaker, wherein a first input conductive contact, a second input conductive contact and a third input conductive contact are sequentially connected through an input bus connection bus, an output bus connection bus is sequentially connected with a first output conductive contact, a second output conductive contact and a third output conductive contact, an input bus connection bus is connected through an input bus group, an output bus group is connected with an output bus connection bus, the input bus group is used as an input connection end of the high-current circuit breaker, and the output bus group is used as an output connection end of the high-current circuit breaker, so that the low-current three-phase circuit breaker is transformed into a single-phase circuit breaker, the rated current of the transformed three-phase circuit breaker is greatly improved compared with that of the original three-phase circuit breaker, and the rated current of the transformed high-current circuit breaker is about three times the rated current of the three-phase circuit breaker before transformation. Therefore, the high-current circuit breaker is reformed by the three-phase circuit breaker, only the input bus connection bus, the output bus connection bus, the input end bus group and the output end bus group are added, the structure is simple, the cost is low, and the rated current of the circuit breaker can be greatly improved.
Drawings
The utility model is further illustrated by means of the accompanying drawings, the embodiments in which do not constitute any limitation of the utility model.
Fig. 1 is a schematic structural view of a high current circuit breaker of the present utility model.
Detailed Description
The utility model will be further described with reference to the following examples and figures:
a high current circuit breaker, as shown in fig. 1, comprising: a three-phase circuit breaker 17 having a first input conductive contact 11, a second input conductive contact 12, a third input conductive contact 13, a first output conductive contact 14, a second output conductive contact 15, a third output conductive contact 16; the high current circuit breaker further includes: an input bus bar 18, an output bus bar 19, an input bus bar group 20, and an output bus bar group 21; the input bus connection bus 18 is connected with the first input conductive contact 11, the second input conductive contact 12 and the third input conductive contact 13 in sequence; the output bus connection bus 19 is sequentially connected with the first output conductive contact 14, the second output conductive contact 15 and the third output conductive contact 16; one end of the input end bus bar group 20 is connected with the input bus bar connection 18, and the other end is an input connection end 22; one end of the output bus bar group 21 is connected with the output bus bar 19, and the other end is an output connection end 23.
The high-current breaker comprises a three-phase breaker 17, a first input conductive contact 11, a second input conductive contact 12 and a third input conductive contact 13 are sequentially connected through an input bus connection bus 18, an output bus connection bus 19 is sequentially connected with a first output conductive contact 14, a second output conductive contact 15 and a third output conductive contact 16, an input bus connection bus 18 is connected through an input bus group 20, an output bus group 21 is connected with an output bus connection bus 19, the input bus group 20 is used as an input connection end 22 of the high-current breaker, the output bus group 21 is used as an output connection end 23 of the high-current breaker, the three-phase breaker 17 with small current is further modified into a single-phase breaker, the rated current of the modified high-current breaker is greatly improved compared with that of the original three-phase breaker 17, and the rated current of the modified high-current breaker is about three times the rated current of the three-phase breaker 17 before modification. Therefore, the high-current breaker is reformed by the three-phase breaker 17, only the input bus connection bus 18, the output bus connection bus 19, the input end bus group 20 and the output end bus group 21 are added, the structure is simple, the cost is low, and the rated current of the breaker can be greatly improved.
Preferably, as shown in fig. 1, the input bus bar group 20 includes a first input bus bar 24 and a second input bus bar 25, the output bus bar group 21 includes a first output bus bar 26 and a second output bus bar 27, one end of the first input bus bar 24 is connected to the input bus bar 18 at a position between the first input conductive contact 11 and the second input conductive contact 12, one end of the second input bus bar 25 is connected to the input bus bar 18 at a position between the second input conductive contact 12 and the third input conductive contact 13, and one end of the first output bus bar 26 is connected to the output bus bar 19 at a position between the first output conductive contact 14 and the second output conductive contact 15; one end of the second output bus bar 27 is connected to the output bus bar 19 at a position between the second output conductive contact 15 and the third output conductive contact 16, the other end of the first input bus bar 24 and the other end of the second input bus bar 25 are connected to an input connection end 22, and the other end of the first output bus bar 26 and the other end of the second output bus bar 27 are connected to an output connection end 23.
Namely, the input end bus bar group 20 is lapped together through the first input bus bar 24 and the second input bus bar 25 to form the input connecting end 22 of the high-current breaker, and the output end bus bar group 21 is lapped together through the first output bus bar 26 and the second output bus bar 27 to form the output connecting end 23 of the high-current breaker, so that the high-current breaker can play a good role in current sharing.
Preferably, as shown in fig. 1, one end of the first input bus bar 24 is connected to the input bus bar 18 at an intermediate position between the first input conductive contact 11 and the second input conductive contact 12, one end of the second input bus bar 25 is connected to the input bus bar 18 at an intermediate position between the second input conductive contact 12 and the third input conductive contact 13, and one end of the first output bus bar 26 is connected to the output bus bar 19 at an intermediate position between the first output conductive contact 14 and the second output conductive contact 15; one end of the second output bus bar 27 is connected to the output bus bar 19 at an intermediate position between the second output conductive contact 15 and the third output conductive contact 16.
The first input bus 24, the second input bus 25, the first output bus 26 and the second output bus 27 are arranged at the middle position, so that better current sharing effect can be achieved.
Preferably, the input bus bar 18 is soldered to the first, second and third input conductive contacts 11, 12, 13; the output bus bar 19 is soldered to the first output conductive contact 14, the second output conductive contact 15 and the third output conductive contact 16.
The input bus connection bus 18 and the output bus connection bus 19 are connected with the first input conductive contact 11, the second input conductive contact 12, the third input conductive contact 13, the first output conductive contact 14, the second output conductive contact 15 and the third output conductive contact 16 through welding, so that the connecting structure is simple, the connecting operation is convenient, and the conductivity after the connection is good.
Preferably, the first input bus 24 and the second input bus 25 are welded to the input bus connection bus 18, and the first output bus 26 and the second output bus 27 are welded to the output bus connection bus 19.
The first input bus 24, the second input bus 25, the first output bus 26 and the second output bus 27 are respectively connected to the input bus connection bus 18 and the output bus connection bus 19 by welding, and the connecting structure is simple, the connecting operation is convenient, and the conductivity after the connection is good.
Preferably, as shown in fig. 1, first connection holes are provided at corresponding positions where the first input bus bar 24 and the second input bus bar 25 are connected to each other, respectively, and the first input bus bar 24 and the second input bus bar 25 are connected by welding. Namely, the positions of the first wiring holes of the first input bus bar 24 and the first wiring holes of the second input bus bar 25 are correspondingly overlapped, so that external wiring can be facilitated. The first input bus 24 and the second input bus 25 are connected through welding, the connection structure is simple and reliable, and the conductivity is good after connection.
Preferably, as shown in fig. 1, second connection holes are provided at corresponding positions where the first output bus bar 26 and the second output bus bar 27 are connected to each other, respectively, and the first output bus bar 26 and the second output bus bar 27 are connected by welding. That is, the positions of the second wiring holes of the first output bus bar 26 and the second wiring holes of the second output bus bar 27 are correspondingly overlapped, so that external wiring can be facilitated. The first output bus 26 and the second output bus 27 are connected through welding, the connection structure is simple and reliable, and the conductivity is good after connection.
Preferably, the input bus bar 18 and the output bus bar 19 are copper bus bars. The copper bus is arranged, the resistance is small, and the conductivity is good.
Preferably, the first input bus 24, the second input bus 25, the first output bus 26, and the second output bus 27 are all copper buses. The copper bus is arranged, the resistance is small, and the conductivity is good.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (9)
1. A high current circuit breaker, comprising:
a three-phase circuit breaker having a first input conductive contact, a second input conductive contact, a third input conductive contact, a first output conductive contact, a second output conductive contact, a third output conductive contact;
the high-current circuit breaker further includes: an input bus connection bus, an output bus connection bus, an input end bus group and an output end bus group;
the input bus connection bus is sequentially connected with the first input conductive contact, the second input conductive contact and the third input conductive contact;
the output bus connection bus is sequentially connected with the first output conductive contact, the second output conductive contact and the third output conductive contact;
one end of the input end bus group is connected with the input bus connection bus, and the other end is an input connection end;
and one end of the output end bus group is connected with the output bus connection bus, and the other end is an output connection end.
2. A high current circuit breaker according to claim 1, characterized in that: the input end bus bar group comprises a first input bus bar and a second input bus bar, the output end bus bar group comprises a first output bus bar and a second output bus bar, one end of the first input bus bar is connected with the position, between the first input conductive contact and the second input conductive contact, of the input bus bar, one end of the second input bus bar is connected with the position, between the second input conductive contact and the third input conductive contact, of the input bus bar, and one end of the first output bus bar is connected with the position, between the first output conductive contact and the second output conductive contact, of the output bus bar; one end of the second output bus is connected with the position, between the second output conductive contact and the third output conductive contact, of the output bus, the other end of the first input bus and the other end of the second input bus are connected to form an input connection end, and the other end of the first output bus and the other end of the second output bus are connected to form an output connection end.
3. A high current circuit breaker according to claim 2, characterized in that: one end of the first input bus bar is connected with an intermediate position of the input bus bar, which is positioned between the first input conductive contact and the second input conductive contact, one end of the second input bus bar is connected with an intermediate position of the input bus bar, which is positioned between the second input conductive contact and the third input conductive contact, and one end of the first output bus bar is connected with an intermediate position of the output bus bar, which is positioned between the first output conductive contact and the second output conductive contact; one end of the second output bus bar is connected with an intermediate position of the output bus bar, which is positioned between the second output conductive contact and the third output conductive contact.
4. A high current circuit breaker according to claim 3, characterized in that: the input bus connection bus is welded on the first input conductive contact, the second input conductive contact and the third input conductive contact; the output bus connection bus is welded on the first output conductive contact, the second output conductive contact and the third output conductive contact.
5. The high current circuit breaker of claim 4, wherein: the first input bus and the second input bus are welded on the input bus connection bus, and the first output bus and the second output bus are welded on the output bus connection bus.
6. A high current circuit breaker according to claim 5, characterized in that: first wiring holes are respectively formed in corresponding positions where the first input bus and the second input bus are connected with each other, and the first input bus and the second input bus are connected through welding.
7. The high current circuit breaker of claim 6, wherein: and second wiring holes are respectively formed in the positions, corresponding to the interconnection positions of the first output bus and the second output bus, and the first output bus and the second output bus are connected through welding.
8. The high current circuit breaker of claim 7, wherein: the input bus connection bus and the output bus connection bus are copper buses.
9. The high current circuit breaker of claim 8, wherein: the first input bus, the second input bus, the first output bus and the second output bus are all copper buses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320189360.5U CN219418927U (en) | 2023-02-02 | 2023-02-02 | High-current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320189360.5U CN219418927U (en) | 2023-02-02 | 2023-02-02 | High-current circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219418927U true CN219418927U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320189360.5U Active CN219418927U (en) | 2023-02-02 | 2023-02-02 | High-current circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219418927U (en) |
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2023
- 2023-02-02 CN CN202320189360.5U patent/CN219418927U/en active Active
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