CN203260537U - Residual current operated circuit breaker - Google Patents
Residual current operated circuit breaker Download PDFInfo
- Publication number
- CN203260537U CN203260537U CN 201320303140 CN201320303140U CN203260537U CN 203260537 U CN203260537 U CN 203260537U CN 201320303140 CN201320303140 CN 201320303140 CN 201320303140 U CN201320303140 U CN 201320303140U CN 203260537 U CN203260537 U CN 203260537U
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- connecting portion
- zero line
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Abstract
The utility model relates to a residual current operated circuit breaker, comprising a base. The base is internally provided with thermal elements, input ends, interconnecting pieces, output ends, a current transformer and a zero sequence mutual inductor. Each thermal element, each input end, each interconnecting piece and each output end are connected in sequence. The input ends pass through the current transformer. The interconnecting pieces pass through the zero sequence mutual inductor. Each thermal element, each input end and each output end separately have a wide surface and a narrow surface, each wide surface is vertical to a corresponding narrow surface, and the area of each wide surface is smaller than the area of the corresponding narrow surface. The wide surface and the narrow surface of each end of each interconnecting piece are vertical to each other, and the area of the wide surface is larger than the area of the narrow surface. The input ends, the interconnecting pieces and the output ends are formed into one piece. The residual current operated circuit breaker, with no welding point, is convenient to process and slow in temperature rise and is safe.
Description
Technical field
The utility model relates to residual current action breaker.
Background technology
Existing circuit breaker comprises input, connecting portion, output, and input, connecting portion, output connect successively, its weak point is, input is fixedly welded on an end of connecting portion, and output is fixedly welded on the other end of connecting portion, when electric current passed through the tie point of this welding, the junction electric current was excessive, temperature rise, easily heating, thereby there is potential safety hazard in the stability when affecting circuit breaker cut-out circuit, and this complex structure, processing inconvenience, manufacturing cost is high.
Summary of the invention
The utility model residual current action breaker technical problem to be solved is: a kind of no-welding-spot, easy to process, residual current action breaker that temperature rise is low, safe are provided.
For solving the problems of the technologies described above, residual current action breaker of the present utility model is by the following technical solutions: residual current action breaker, comprise pedestal, among pedestal, be provided with thermal element, input, connecting portion, output, current transformer and zero-sequence transformer, thermal element, input, connecting portion, output connects successively, input passes current transformer, connecting portion passes zero-sequence transformer, thermal element, input and output have respectively wide and leptoprosopy, wide is mutually vertical with leptoprosopy, wide area is greater than the leptoprosopy area, the two ends of described connecting portion have respectively wide and leptoprosopy, wide of each end of connecting portion all is mutually a vertical and wide area greater than the leptoprosopy area, described input with leptoprosopy, connecting portion and output are one-body molded.
The beneficial effect of the utility model residual current action breaker is: because input, connecting portion and output are one-body molded, therefore compared with prior art there is not connection welding between input, connecting portion and the output, temperature rise was low when thereby electric current passed through input, connecting portion and output, heating is little, stability is high, therefore circuit breaker disengagement failure circuit accurately, remove potential safety hazard, and this breaker structure is simple, and is easy to process, low cost of manufacture.
The technical scheme that the utility model provides improved residual current action breaker to adopt is: wide of described connecting portion two ends is in same plane with wide of input and the wide face of output respectively, make connecting portion be arranged on sidewards among the pedestal, it is little to take up room, and makes wide of connecting portion wide facing to identical with wide of input and output.
The technical scheme that the utility model provides further improved residual current action breaker to adopt is: described connecting portion comprises the first connecting portion, the second connecting portion and the 3rd connecting portion, described the first connecting portion, be middle interconnecting piece between the second connecting portion and the 3rd connecting portion two ends separately, the middle interconnecting piece of the first connecting portion is in the below of the middle interconnecting piece of the second connecting portion, the middle interconnecting piece of the 3rd connecting portion is in the right side of the middle interconnecting piece of the second connecting portion, arrange by this positional structure, make the first connecting portion, the second connecting portion and the 3rd connecting portion can both pass zero-sequence transformer easily, make the first connecting portion, have enough spaces between the second connecting portion and the 3rd connecting portion, prevent the phase mutual interference.
The technical scheme that the utility model provides further improved residual current action breaker to adopt is: be enclosed with insulating paper on the described connecting portion, and high temperature resistant, high pressure resistant, insulating properties is better, makes circuit breaker general safety performance better.
The technical scheme that the utility model provides further improved residual current action breaker to adopt is: described pedestal also is provided with zero line input, zero line connecting portion and zero line output, described zero line connecting portion passes zero-sequence transformer, zero line connecting portion one end is fixedly connected with the other end and is fixedly connected with the zero line output with the zero line input, described zero line connecting portion is the multiply annealed copper wire, because the zero line connecting portion is the multiply annealed copper wire can change shape, therefore the zero line connecting portion can be convenient passes zero-sequence transformer, makes installation more convenient.
Below in conjunction with drawings and Examples residual current action breaker of the present utility model is further described in detail.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model residual current action breaker.
Embodiment
As shown in Figure 1, the specific embodiment of the utility model residual current action breaker, comprise pedestal 1, among pedestal 1, be provided with thermal element 2, input 3, connecting portion 4, output 5, current transformer 6 and zero-sequence transformer 7, thermal element 2, input 3, connecting portion 4, output 5 connects successively, input 3 passes current transformer 6, connecting portion 4 passes zero-sequence transformer 7, thermal element 2, input 3 and output 5 have respectively wide 8 and leptoprosopy 9, that is to say wide 8 and be thermal element 2, the front of input 3 and output 5, with pedestal 1 just facing to identical, pedestal 1 is just facing the human body direction, leptoprosopy 9 is wide 8 side.Be mutually vertical with leptoprosopy 9 for wide 8, wide 8 areas are greater than leptoprosopy 9 areas, the two ends of described connecting portion 4 have respectively wide 8 and leptoprosopy 9, that is to say that termination, connecting portion 4 two ends has wide 8 and leptoprosopy 9, wide 8 of connecting portion 4 each end all is mutually vertical and wide 8 areas greater than leptoprosopy 9 areas with leptoprosopy 9, wide 8 of connecting portion 4 two ends is in same plane with 3 wide 8 of inputs and 5 wide 8 of outputs respectively, that is to say wide 8 of connecting portion 4 two ends with 5 wide 8 of 3 wide 8 of inputs and outputs towards identical, connecting portion 4 is arranged among the pedestal 1 in sidewards mode, described input 3, connecting portion 4 and output 5 are one-body molded, that is to say and do not have connection welding, be wholely set and form, make connecting portion 4 security performances better, be enclosed with insulating paper on the described connecting portion 4, that is to say that insulating paper is high pressure resistant at connecting portion 4 surface bag one deck insulating papers, high temperature resistant.Described connecting portion 4 comprises the first connecting portion 4-1, the second connecting portion 4-2 and the 3rd connecting portion 4-3, described the first connecting portion 4-1, be middle interconnecting piece 4-4 between the second connecting portion 4-2 and the 3rd connecting portion 4-3 two ends separately, the middle interconnecting piece 4-4 of the first connecting portion 4-1 is in the below of the middle interconnecting piece 4-2 of the second connecting portion 4-2, the middle interconnecting piece 4-4 of the 3rd connecting portion 4-3 is in the right side of the middle interconnecting piece 4-4 of the second connecting portion 4-2, that is to say the first connecting portion 4-1, the position relationship of the second connecting portion 4-2 and the 3rd connecting portion 4-3, middle interconnecting piece 4-4 is part between connecting portion 4 two ends, arranges like this and saves the space.
The residual current action breaker of present embodiment is the three-phase and four-line residual current action breaker, thermal element 2 comprises the first thermal element 2-1, second connects thermal element 2-2 and the 3rd thermal element 2-3, input 3 comprises first input end 3-1, the second input 3-2 and the 3rd input 3-3, output 5 comprises the first output 5-1, the second output 5-2 and the 3rd output 5-3, the first thermal element 2-1, first input end 3-1, the first connecting portion 4-1 be connected output 5-1 and connect successively, the second thermal element 2-2, the second input 3-2, the second connecting portion 4-2 be connected output 5-2 and connect successively, the 3rd thermal element 2-3, the 3rd input 3-3, the 3rd connecting portion 4-3 connects successively with the 3rd output 5-3, described pedestal 1 also is provided with zero line input 10, zero line connecting portion 11 and zero line output 12, described zero line connecting portion 11 passes zero-sequence transformer 7, zero line connecting portion 11 1 ends are fixedly connected with the other end and are fixedly connected with zero line output 12 with zero line input 10, described zero line connecting portion 11 is the multiply annealed copper wire, the first thermal element 2-1, the second thermal element 2-2 of company and the 3rd thermal element 2-3 from left to right are arranged in order, first input end 3-1, the second input 3-2 and the 3rd input 3-3 from left to right are arranged in order, the first output 5-1, the second output 5-2 and the 3rd output 5-3 from left to right are arranged in order.
Claims (8)
1. residual current action breaker, comprise pedestal (1), among pedestal (1), be provided with thermal element (2), input (3), connecting portion (4), output (5), current transformer (6) and zero-sequence transformer (7), thermal element (2), input (3), connecting portion (4), output (5) connects successively, input (3) passes current transformer (6), connecting portion (4) passes zero-sequence transformer (7), thermal element (2), input (3) and output (5) have respectively wide (8) and leptoprosopy (9), wide (8) are mutually vertical with leptoprosopy (9), wide (8) area is greater than leptoprosopy (9) area, it is characterized in that: the two ends of described connecting portion (4) have respectively wide (8) and leptoprosopy (9), wide (8) of each end of connecting portion (4) all are mutual vertical and wide (8) area greater than leptoprosopy (9) area, described input (3) with leptoprosopy (9), connecting portion (4) and output (5) are one-body molded.
2. residual current action breaker according to claim 1 is characterized in that: wide (8) at described connecting portion (4) two ends are in same plane with input (3) wide (8) and output (5) wide (8) respectively.
3. residual current action breaker according to claim 1 and 2, it is characterized in that: described connecting portion (4) comprises the first connecting portion (4-1), the second connecting portion (4-2) and the 3rd connecting portion (4-3), described the first connecting portion (4-1), be middle interconnecting piece (4-4) between the second connecting portion (4-2) and the 3rd connecting portion (4-3) two ends separately, the middle interconnecting piece (4-4) of the first connecting portion (4-1) is in the below of the middle interconnecting piece (4-4) of the second connecting portion (4-2), and the middle interconnecting piece (4-4) of the 3rd connecting portion (4-3) is in the right side of the middle interconnecting piece (4-4) of the second connecting portion (4-2).
4. residual current action breaker according to claim 1 and 2, it is characterized in that: described connecting portion is enclosed with insulating paper on (4).
5. residual current action breaker according to claim 3, it is characterized in that: described connecting portion is enclosed with insulating paper on (4).
6. residual current action breaker according to claim 1 and 2, it is characterized in that: described pedestal (1) also is provided with zero line input (10), zero line connecting portion (11) and zero line output (12), described zero line connecting portion (11) passes zero-sequence transformer (7), zero line connecting portion (11) one ends are fixedly connected with the other end and are fixedly connected with zero line output (12) with zero line input (10), described zero line connecting portion (11) is the multiply annealed copper wire.
7. residual current action breaker according to claim 3, it is characterized in that: described pedestal (1) also is provided with zero line input (10), zero line connecting portion (11) and zero line output (12), described zero line connecting portion (11) passes zero-sequence transformer (7), zero line connecting portion (11) one ends are fixedly connected with the other end and are fixedly connected with zero line output (12) with zero line input (10), described zero line connecting portion (11) is the multiply annealed copper wire.
8. residual current action breaker according to claim 4, it is characterized in that: described pedestal (1) also is provided with zero line input (10), zero line connecting portion (11) and zero line output (12), described zero line connecting portion (11) passes zero-sequence transformer (7), zero line connecting portion (11) one ends are fixedly connected with the other end and are fixedly connected with zero line output (12) with zero line input (10), described zero line connecting portion (11) is the multiply annealed copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320303140 CN203260537U (en) | 2013-05-30 | 2013-05-30 | Residual current operated circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320303140 CN203260537U (en) | 2013-05-30 | 2013-05-30 | Residual current operated circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203260537U true CN203260537U (en) | 2013-10-30 |
Family
ID=49473081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320303140 Expired - Fee Related CN203260537U (en) | 2013-05-30 | 2013-05-30 | Residual current operated circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203260537U (en) |
-
2013
- 2013-05-30 CN CN 201320303140 patent/CN203260537U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20190530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |