CN219873360U - Insulation structure of circuit breaker and circuit breaker - Google Patents
Insulation structure of circuit breaker and circuit breaker Download PDFInfo
- Publication number
- CN219873360U CN219873360U CN202320172511.6U CN202320172511U CN219873360U CN 219873360 U CN219873360 U CN 219873360U CN 202320172511 U CN202320172511 U CN 202320172511U CN 219873360 U CN219873360 U CN 219873360U
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- circuit breaker
- width
- clamping groove
- breaker body
- opening
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- 238000009413 insulation Methods 0.000 title claims abstract description 19
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 239000011324 bead Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005191 phase separation Methods 0.000 abstract 4
- 238000009434 installation Methods 0.000 abstract 1
- 230000016507 interphase Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to an insulation structure of a circuit breaker and the circuit breaker, which comprises a circuit breaker body and a drawer seat, and is characterized in that a first phase separation strip is fixedly arranged at the back of the circuit breaker body, grooves are formed in two side faces of a bottom plate piece of the drawer seat, grooves on the side faces of two adjacent bottom plate pieces in a plurality of bottom plate pieces correspondingly form a clamping groove with an opening facing the circuit breaker body, and when the circuit breaker body is rocked into the drawer seat, the first phase separation strip is inserted into the corresponding clamping groove of the circuit breaker body, so that insulation between bus phases of the circuit breaker body is realized, the creepage distance is increased, the positioning of the phase separation strips is realized by adopting the bottom plate partial grooves, the complex installation structure at the phase separation position of the circuit breaker is cancelled, the structure is simple, and the processing is convenient.
Description
Technical Field
The utility model relates to the technical field of piezoelectric devices, in particular to an insulation structure of a circuit breaker and the circuit breaker.
Background
The circuit breaker is important and common distribution equipment in a low-voltage distribution system, has a manual switching function, and can protect personal safety and electrical safety in real time.
Along with the continuous updating of products, high-voltage circuit breakers also enter the market, and compared with traditional circuit breakers, the interphase of the high-voltage circuit breakers and the side plates of the drawer seat become insulating risk points of the products, and the method commonly used at present aims at the problem is to additionally increase insulating parting strips at corresponding positions between the interphase or the side plates of the drawer seat so as to increase the creepage distance, thereby improving the insulating performance of the circuit breaker, and a plurality of parting strip insulating accessories are derived from the insulating parting strips.
However, these parting bead attachments often focus on unilateral protection, such as the isolation between the drawer housing and the circuit breaker body or the insulation between the body bus bars, and do not protect both at the same time, so that the product still presents a risk of breakdown when subjected to high voltage impacts.
Disclosure of Invention
Accordingly, it is necessary to provide an insulating device and a circuit breaker, which can realize the insulation between the circuit breaker main body bus bars and is convenient to process.
The utility model provides an insulation system of circuit breaker, it includes circuit breaker body and drawer seat, its characterized in that, first looks parting bead fixed mounting is at the back of circuit breaker body, and the recess has been seted up to the bottom plate spare both sides face of drawer seat, and the recess on the side of two adjacent bottom plate spare corresponds to constitute a draw-in groove that opens towards the circuit breaker body in a plurality of bottom plate spare, the circuit breaker body shakes into when the drawer seat, first looks parting bead inserts in the corresponding draw-in groove of circuit breaker body.
In one embodiment, adjacent grooves are symmetrically arranged with respect to each other.
In one embodiment, the width of the bottom surface of the clamping groove is consistent with the width of the opening, and the first interval bar is in clearance fit with the clamping groove.
In one embodiment, the width of the bottom surface of the clamping groove is smaller than the width of the opening, and the thickness of the first interval bar is larger than the width of the bottom surface of the clamping groove and smaller than the width of the opening of the clamping groove.
In one embodiment, the width of the bottom surface of the clamping groove is larger than the width of the opening, the thickness of the first interval bar is larger than the width of the opening of the clamping groove and smaller than the width of the bottom surface of the clamping groove, and the difference between the thickness of the first interval bar and the deformation amount in the thickness direction of the first interval bar is smaller than the width of the opening of the clamping groove.
In one embodiment, the insulation structure further comprises a second phase spacer, one end of the second phase spacer is fixed at two side positions of the breaker body, the other end of the second phase spacer is clamped in the groove at the extreme edge, and the second phase spacer is integrally located between the breaker body and the drawer seat side plate.
In one embodiment, the height of the slot opening is greater than the height of the bottom surface.
In one embodiment, the depth of the clamping groove is greater than or equal to one fifth of the thickness of the base plate member.
In one embodiment, the phase-to-phase bars are secured in phase-to-phase positions of the breaker body by fasteners having an insulating coating on the surface.
A circuit breaker comprising a drawer housing, a circuit breaker body mounted in the drawer housing, and an insulating device as claimed in any one of the preceding claims.
Above-mentioned insulating device and circuit breaker through seting up the recess on the bottom plate spare curb plate to the recess on the adjacent bottom plate spare curb plate can constitute a draw-in groove of opening towards the circuit breaker body, and when the circuit breaker body was installed to the drawer seat in, the alternate strip of installing on the circuit breaker body can peg graft respectively in a plurality of draw-in grooves, thereby realizes the alternate insulation of circuit breaker body generating line, has increased creepage distance, and in traditional drawer seat, adopts bottom plate local recess to fix a position the alternate strip of circuit breaker, has cancelled the complicated mounting structure of alternate position department of circuit breaker, and the structure is simpler, and processing is convenient.
Drawings
FIG. 1 is an assembled schematic view of an insulation structure according to one embodiment;
FIG. 2 is a schematic illustration of an alternate embodiment of an assembly of bars;
fig. 3 is a schematic structural view of a floor member of an embodiment.
In the figure: 100. a groove; 210. a first spacing bar; 220. a second phase spacer bar; 10. a drawer seat; 20. a floor member; 21. mounting steps; 30. a circuit breaker body; 31. and a bus.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present utility model for the purpose of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in the description of the present utility model includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3, in one embodiment, an insulation structure of a circuit breaker includes a circuit breaker body 300 and a drawer base 10, a first spacer 210 is fixedly mounted on the back of the circuit breaker body 300, grooves 100 are formed on two sides of a bottom plate member 20 of the drawer base 10, grooves 100 on sides of two adjacent bottom plate members 20 of the plurality of bottom plate members 20 form a clamping groove with an opening facing the circuit breaker body 300, and when the circuit breaker body 300 is rocked into the drawer base 10, the first spacer 210 is inserted into the corresponding clamping groove of the circuit breaker body 30.
Specifically, when the circuit breaker is assembled, the bottom plate member 20 is first opposed to the back frame on the drawer base 10, and the two mounting steps 21 of the bottom plate member 20 in the up-down direction are attached to the upper and lower beams of the back frame of the drawer base 10, and are fixed by fasteners, and after the plurality of bottom plate members 20 are mounted, the opposite grooves 100 between the adjacent bottom plate members 20 are communicated to form a slot with an opening facing the inside of the drawer base 10, that is, facing the mounting position of the circuit breaker body 30. The phase-to-phase spacers are then mounted at the back plate of the circuit breaker body 30 with the phase-to-phase spacers located between the phases at the back plate of the circuit breaker body 30, i.e. between each adjacent busbar 31. Then, the breaker body 30 is mounted on the guide rails on two sides of the drawer base 10, and then the rocker on the lower side of the drawer base 10 is rocked, so that the breaker body 30 moves into the drawer base 10, and in the moving process, one end of the interval bar, which is far away from the breaker body 30, is gradually close to the bottom plate member 20 and finally is inserted into the clamping groove formed between the adjacent bottom plate members 20, so that insulation between the buses 31 of the breaker body 30 is realized.
Above-mentioned insulation system is through seting up recess 100 on the bottom plate spare 20 curb plate to recess 100 on the adjacent bottom plate spare 20 curb plate can constitute a draw-in groove that opens towards circuit breaker body 30, when circuit breaker body 30 installs in to drawer seat 10, the alternate strip of installing on the circuit breaker body 30 can peg graft respectively in a plurality of draw-in grooves, thereby realize the alternate insulation of circuit breaker body 30 generating line 31, increased the creepage distance between circuit breaker body 30 interphase, compare in traditional drawer seat 10, adopt bottom plate local recess 100 to fix a position the alternate strip, the complicated mounting structure of circuit breaker interphase position department has been cancelled, the structure is simpler, and processing is convenient.
In the present embodiment, adjacent grooves 100 are symmetrically disposed with respect to each other.
Specifically, the plurality of bottom plate members 20 are arranged linearly, the grooves 100 on the opposite side plates of the plurality of bottom plate members 20 are correspondingly combined to form the clamping grooves, and because the adjacent grooves 100 are symmetrical to each other, the openings of the clamping grooves formed by the adjacent grooves 100 are necessarily oriented to the direction of the breaker body 30, so that the insertion of the spacing bars is more convenient.
In this embodiment, the width of the bottom surface of the card slot is identical to the width of the opening, and the first spacing strips 210 are in clearance fit with the card slot.
Specifically, the bottom surface and the opening width of the clamping groove are consistent, and the first interval bar 210 is in clearance fit with the clamping groove, so that the first interval bar 210 is smoother and attached when being inserted into the clamping groove, and the connecting position is more regular.
In this embodiment, the width of the bottom surface of the slot may be smaller than the width of the opening, and the thickness of the first spacing strip 210 is greater than the width of the bottom surface of the slot and smaller than the width of the opening of the slot.
Specifically, if the width of the bottom surface of the card slot is smaller than the width of the opening, after the first spacer 210 is inserted into the card slot for a certain distance, the end of the first spacer 210 will abut against two side walls of the card slot that are gradually close to each other, and form an interference fit with the card slot when the card slot is continuously inserted, so as to achieve the fixing effect. And because the bottom plate member 20 is of a plastic insulating structure, if the width of the bottom surface of the clamping groove is smaller than the width of the opening, the bottom plate member 20 forms a positive drawing angle at the groove 100 during processing, so that the bottom plate member 20 is easy to be drawn out.
In this embodiment, the width of the bottom surface of the card slot can also be larger than the width of the opening, and the thickness of the first spacing strip 210 is larger than the width of the opening of the card slot and smaller than the width of the bottom surface of the card slot, and the difference between the thickness of the first spacing strip 210 and the deformation amount in the thickness direction is smaller than the width of the opening of the card slot.
Specifically, if the width of the bottom surface of the clamping groove is greater than the width of the opening, and the difference between the thickness of the first inter-space bar 210 and the deformation amount in the thickness direction is smaller than the width of the clamping groove opening, when the first inter-space bar 210 is inserted into the clamping groove, the first inter-space bar 210 is affected by the clamping groove opening, until the thickness of the first inter-space bar 210 after compression deformation is smaller than the clamping groove opening, and then when the first inter-space bar 210 is inserted into the clamping groove, the end portion of the first inter-space bar 210 is not pressed and contacted with the clamping groove opening, so that the first inter-space bar 210 is more stably and tightly fixed in the clamping groove.
In the present embodiment, the insulation structure further includes a second phase spacer 220, one end of the second phase spacer 220 is fixed at two sides of the breaker body 30, the other end is clamped in the edge-most groove 100, and the second phase spacer 220 is integrally located between the breaker body 30 and the side plate of the drawer base 10.
Specifically, when the breaker body 30 is mounted in the drawer base 10, the second phase spacer bars 220 located at two sides of the breaker body 30 can insulate the breaker body 30 from the side plates of the drawer base 10, and increase the creepage distance between the bus bar 31 of the breaker body 30 and the side plates of the drawer base 10.
In this embodiment, the height of the opening of the card slot is greater than the height of the bottom surface.
Specifically, the opening height of the clamping groove is set to be larger than the bottom surface height, so that the spacing strips are more convenient to insert into the clamping groove, and the spacing strips are prevented from abutting against the edges of the opening of the clamping groove.
In this embodiment, the width of the slot opening is preferably greater than 1mm and the slot depth is greater than or equal to one fifth the thickness of the base member 20.
Specifically, to ensure structural strength for insulation, the depth of the grooves 100 should be greater than or equal to one fifth of the thickness of the base member 20, i.e., S/L. Gtoreq.20%.
In the present embodiment, the phase-to-phase bars are fixed at the phase-to-phase positions of the breaker body 30 by fasteners having insulating coatings on the surfaces.
A circuit breaker comprising a drawer housing 10, a circuit breaker body 30 mounted within the drawer housing 10, and an insulating device according to any of the above embodiments.
Above-mentioned circuit breaker is through seting up recess 100 on the bottom plate spare 20 curb plate to recess 100 on the adjacent bottom plate spare 20 curb plate can constitute a draw-in groove that opens towards circuit breaker body 30, when circuit breaker body 30 installs in to drawer seat 10, the alternate strip of installing on the circuit breaker body 30 can peg graft respectively in a plurality of draw-in grooves, thereby realize the alternate insulation of circuit breaker body 30 generating line 31, increased the creepage distance between circuit breaker body 30 interphase, compare in traditional drawer seat 10, adopt curb plate local recess 100 to fix a position the alternate strip, the complicated mounting structure of circuit breaker interphase position department has been cancelled, the structure is simpler, and processing is convenient.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The utility model provides an insulation system of circuit breaker, it includes circuit breaker body and drawer seat, its characterized in that, first looks parting bead fixed mounting is at the back of circuit breaker body, and the recess has been seted up to the bottom plate spare both sides face of drawer seat, and the recess on the side of two adjacent bottom plate spare corresponds to constitute a draw-in groove that opens towards the circuit breaker body in a plurality of bottom plate spare, the circuit breaker body shakes into when the drawer seat, first looks parting bead inserts in the corresponding draw-in groove of circuit breaker body.
2. The insulating structure of a circuit breaker according to claim 1, wherein the grooves on the sides of the adjacent two base members are symmetrically disposed with respect to each other.
3. The insulating structure of a circuit breaker according to claim 2, wherein the bottom width of the clamping groove is identical to the opening width, and the first spacing bars are in clearance fit with the clamping groove.
4. The insulating structure of a circuit breaker according to claim 2, wherein the width of the bottom surface of the clamping groove is smaller than the width of the opening, and the thickness of the first interval bar is larger than the width of the bottom surface of the clamping groove and smaller than the width of the opening of the clamping groove.
5. The insulating structure of a circuit breaker according to claim 2, wherein the width of the bottom surface of the clamping groove is larger than the width of the opening, and the thickness of the first interval bar is larger than the width of the opening of the clamping groove and smaller than the width of the bottom surface of the clamping groove, and the difference between the thickness of the first interval bar and the deformation amount in the thickness direction of the first interval bar is smaller than the width of the opening of the clamping groove.
6. The structure according to claim 3, 4 or 5, further comprising a second phase spacer, wherein one end of the second phase spacer is fixed at two sides of the circuit breaker body, the other end of the second phase spacer is inserted into a groove at the most edge of the bottom plate member of the drawer base, and the second phase spacer is integrally located between the circuit breaker body and the drawer base side plate.
7. The insulating structure of a circuit breaker according to claim 6, wherein the height of the slot opening is greater than the height of the bottom surface.
8. The insulating structure of a circuit breaker according to claim 7, wherein the depth of the clamping groove is greater than or equal to one fifth of the thickness of the base member.
9. The insulating structure of a circuit breaker according to claim 8, wherein the phase-to-phase bars are fixed at the phase-to-phase positions of the circuit breaker body by fasteners having insulating coatings on surfaces.
10. A circuit breaker comprising a drawer housing, a circuit breaker body mounted in the drawer housing, and an insulating structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320172511.6U CN219873360U (en) | 2023-01-30 | 2023-01-30 | Insulation structure of circuit breaker and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320172511.6U CN219873360U (en) | 2023-01-30 | 2023-01-30 | Insulation structure of circuit breaker and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219873360U true CN219873360U (en) | 2023-10-20 |
Family
ID=88337574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320172511.6U Active CN219873360U (en) | 2023-01-30 | 2023-01-30 | Insulation structure of circuit breaker and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219873360U (en) |
-
2023
- 2023-01-30 CN CN202320172511.6U patent/CN219873360U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |