CN202076146U - Moving contact subassembly and breaker with the same - Google Patents
Moving contact subassembly and breaker with the same Download PDFInfo
- Publication number
- CN202076146U CN202076146U CN2011200716371U CN201120071637U CN202076146U CN 202076146 U CN202076146 U CN 202076146U CN 2011200716371 U CN2011200716371 U CN 2011200716371U CN 201120071637 U CN201120071637 U CN 201120071637U CN 202076146 U CN202076146 U CN 202076146U
- Authority
- CN
- China
- Prior art keywords
- moving contact
- free end
- movable contact
- assembly
- contact assembly
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- -1 this Chemical compound 0.000 description 1
Images
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- Breakers (AREA)
Abstract
The utility model provides a moving contact subassembly which comprises a bracket of a moving contact; the bracket of the moving contact can rotate around a shaft; the moving contact subassembly further comprises a connecting component, the connecting component comprises a fixing end and a free end, the fixing end is connected with one end of the bracket of the moving contact far away from the shaft, the free end is provided with the end surface of the free end, and the end surface of the free end is parallel to the axis of the shaft; and the moving contact subassembly further comprises a moving contact, the moving contact comprises a bottom surface, and the moving contact is welded on the end surface of the free end of the connecting component through the bottom surface. The utility model further provides a breaker with the moving contact subassembly. The moving contact is welded on the end surface of the free end of the connecting component through the bottom surface and is not directly welded on the bracket of the moving contact, so that the moving contact subassembly can be easily produced.
Description
Technical Field
The utility model relates to a moving contact assembly especially relates to a moving contact assembly including moving contact support, and has the circuit breaker of this subassembly.
Background
The contact system of the circuit breaker in the current market is generally divided into two parts, namely a moving contact and a static contact, wherein the static contact is fixed on a base of the circuit breaker, the moving contact is fixed on a moving contact support, the moving contact is driven to move within a certain range through the movement of the moving contact support, and the purpose of switching on or switching off the circuit breaker is achieved through the contact or separation of the moving contact and the static contact.
Fig. 1 shows a moving contact assembly 200 of a miniature circuit breaker in the prior art, which is manufactured and produced more complicated, and mainly comprises a moving contact 40 and a moving contact support 10, wherein the moving contact 40 and the moving contact support 10 are welded together, and a positioning reference is small when the moving contact 40 and the moving contact support 10 are welded together, and the positioning reference is only a short side 41 of a welding end 42 of the moving contact, and is very difficult to position by using a fixture, and the key functional size of the welded assembly is difficult to ensure by using a conventional production mode.
In order to ensure accurate positioning and welded key function size, the moving contact assembly in the prior art is realized by welding and then blanking full-automatic equipment, so that the welded key function size can be ensured. However, the full-automatic welding equipment has high manufacturing cost, the manufacturing cost of the assembly is increased, and the moving contact in the original design is made of pure copper and has larger design size, so the material cost of the moving contact assembly is also higher.
Disclosure of Invention
The utility model aims at providing a moving contact subassembly of easy preparation production.
Another object of the present invention is to provide a circuit breaker having a movable contact assembly that is easy to manufacture.
In order to achieve the above object, the utility model provides a moving contact assembly, including a moving contact support, moving contact support can rotate around an axle, still includes:
a connecting member, said connecting member having a fixed end and a free end, said fixed end being connected to an end of said movable contact support remote from said shaft, said free end having a free end face, said free end face being parallel to said shaft axis;
the moving contact is provided with a bottom surface, and the moving contact is welded on the end surface of the free end of the connecting piece through the bottom surface.
The moving contact is welded on the free end face of the connecting piece through the bottom surface, but not directly welded on the moving contact support, so that the moving contact component can be manufactured and produced easily.
As an embodiment of the utility model, the connecting piece with moving contact support structure as an organic whole, like this, the connecting piece can adopt same material to make with moving contact support, and especially, moving contact support can be made by iron, and the moving contact is made by the copper alloy, can save material cost like this.
Especially, integrative structure is a panel beating structure of buckling, and the panel beating structure of buckling is comparatively simple on production technology, has improved production efficiency. The metal plate structure with the structure similar to that of a moving contact support in the prior art is adopted, partial functions of the moving contact in the original design can be replaced, and in addition, a welding reference which is easier to position is provided for the moving contact in the new design.
As an embodiment of the utility model, the fixed of connecting piece by moving contact support keeps away from the one end of axle is buckled and is formed, when buckling the connecting piece, as long as guarantee that the free end terminal surface is on a parallel with the axis direction, can weld the utility model provides a moving contact to guarantee new moving contact assembly's key function size.
As an embodiment of the utility model, the moving contact bottom surface with the at least partial coincidence of free end terminal surface of connecting piece, that is to say, the face of weld is exactly the coincidence part of moving contact bottom surface and free end terminal surface, and the moving contact bottom surface can coincide just with the free end terminal surface of connecting piece, perhaps the moving contact bottom surface slightly is greater than or slightly is less than the free end terminal surface of connecting piece, and such design can just can be in the same place connecting piece and the moving contact welding that is fixed with the moving contact support through simple welding jig and welding machine to improve subassembly product percent of pass and productivity ratio.
As an embodiment of the utility model, the moving contact passes through the bottom surface welding is in when on the free end terminal surface of connecting piece, the long limit and the broadside of moving contact bottom surface with the long limit and the broadside of free end terminal surface are the positioning reference. The welding area and the positioning reference are increased, so that the welding is convenient.
The utility model also provides a circuit breaker, include as above-mentioned arbitrary moving contact subassembly, because moving contact subassembly easily produces, also reduced the preparation degree of difficulty of circuit breaker to this kind of degree.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
FIG. 1 is a schematic view of a prior art movable contact assembly;
fig. 2 is a schematic view of one embodiment of the moving contact assembly of the present invention;
fig. 3 is a schematic view of a movable contact support and a connecting member in an embodiment of the movable contact assembly of the present invention;
fig. 4A is a schematic view of a movable contact in an embodiment of the movable contact assembly of the present invention;
fig. 4B is a schematic view of another angle of the movable contact in fig. 4A.
Reference numerals
200 moving contact assembly
9 shaft
X axis
10 moving contact support
14 axle hole
12 moving contact support far from shaft end
20 connecting piece
22 fixed end
24 free end
24A free end face
242 free end face long edge
244 free end face broad edge
40 moving contact
41 short side
42 moving contact welding end
100 moving contact assembly
30 moving contact
30A moving contact bottom surface
Cambered surface of 30B moving contact
302 moving contact bottom long edge
304 moving contact bottom broad edge
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
In the movable contact assembly 100 shown in fig. 2, the movable contact support 10 is substantially the same as the movable contact support in the prior art, and has an axial hole 14 at one end, through which an axle 9 can be placed, the axial hole 14 and the axle 9 have the same axis X, and the movable contact support 10 can rotate around the axle 9 under the action of an external force.
Different from the prior art, on the basis of the original moving contact support 10, the utility model discloses still increase a connecting piece 20, connecting piece 20 has a stiff end 22 and a free end 24, and stiff end 22 is connected at the one end 12 that moves contact support 10 and keep away from axle 9. Meanwhile, the present invention provides a movable contact 30, which is redesigned in the movable contact assembly 100 and welded on the free end 24 of the connecting member 20.
In particular, the movable contact support 10 may be a sheet metal bent structure integrated with the connecting element 20, and the fixed end 22 of the connecting element 20 is formed by bending one end 12 of the movable contact support 10, and extends out of the main body of the connecting element 20 to the free end 24 thereof along the fixed end 22.
As shown in fig. 3, the free end 24 has a free end surface 24A, the free end surface 24A is parallel to the axis X of the shaft 9, and the free end surface 24A may be a square having a long side 242 and a wide side 244.
As shown in fig. 4A, the movable contact 30 of the present invention has a bottom surface 30A and an arc surface 30B, and is welded on the free end surface 24A of the connecting member 20 through the bottom surface 30A, and the arc surface 30B is identical to the movable contact arc surface in the prior art.
In order to facilitate positioning during welding, the bottom surface 30A of the movable contact and the free end surface 24A of the connecting piece 20 can be both in a square shape, and the long side 302 and the wide side 304 of the bottom surface 30A of the movable contact are at least partially overlapped with the long side 242 and the wide side 244 of the free end surface 24A, because the welding area of the newly designed movable contact 30 is increased, and the welding reference can also be ensured by the two sides (302 and 304) of the welding surface (namely the bottom surface 30A of the movable contact), the manufacture is easier, the connecting piece 20 and the movable contact 30 can be welded together only by designing a simple welding fixture for positioning, and complex automatic positioning welding equipment is not needed.
In particular, the movable contact bottom surface 30A may coincide with the free end surface 24A of the connecting member 20, or the movable contact bottom surface 30A may be slightly larger or smaller than the free end surface 24A of the connecting member 20.
Moreover, since the dimension of the arc surface 30B of the movable contact in the new design is consistent with that of the arc surface in the existing design, the key functional dimension of the movable contact assembly 100 is also ensured after the welding is completed.
In the aspect of the material, the moving contact 30 material of new design can adopt the copper alloy that resistant electric arc ability is strong, and the material of moving contact support 10 is iron, like this, on the basis of guaranteeing original function, the embodiment of the utility model provides a changeing the size that has increased moving contact support 10 mutually (increased connecting piece 20 promptly), reduced the size of moving contact 30, but the material of moving contact support 10 is iron, and the material of moving contact 30 is the copper alloy, so reduced the material cost of whole subassembly 100.
The utility model also provides an use the circuit breaker of above-mentioned movable contact subassembly 100, especially miniature circuit breaker, because movable contact subassembly easily produces and the cost is lower, also reduced the preparation degree of difficulty and the cost of circuit breaker to this kind of degree.
To sum up, the utility model discloses moving contact subassembly has increased welding area and location benchmark, only just can be in the same place the connecting piece that is fixed with the moving contact support and moving contact welding through simple welding jig and welding machine to improve subassembly product percent of pass and productivity ratio, reduce manufacturing cost.
And because the moving contact support is made of iron (or the connecting piece is made at the same time), the moving contact uses copper alloy, but the size is smaller, so the material cost of the whole assembly is reduced.
Because the key functional size after the moving contact assembly is welded is mainly guaranteed by the moving contact support with the connecting piece, the size of the moving contact support with the connecting piece can be guaranteed by the die, the production stability is easily guaranteed in the processing process, and the product consistency is good.
It can be seen that the utility model provides a moving contact assembly, including a moving contact support, the moving contact support can rotate around an axle, still include a connecting piece, the connecting piece has a stiff end and a free end, the stiff end is connected in the moving contact support keeps away from the one end of axle, the free end has a free end terminal surface, the free end terminal surface is parallel to the axis of axle; the moving contact is provided with a bottom surface, and the moving contact is welded on the end surface of the free end of the connecting piece through the bottom surface. The utility model also provides a circuit breaker of this subassembly. The moving contact is welded on the free end face of the connecting piece through the bottom surface, but not directly welded on the moving contact support, so that the moving contact component can be manufactured and produced easily.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (9)
1. A moving contact assembly comprises a moving contact support (10), wherein the moving contact support (10) can rotate around a shaft (9), and the moving contact assembly is characterized by further comprising:
a connecting member (20), said connecting member (20) having a fixed end (22) and a free end (24), said fixed end (22) being connected to an end (12) of said movable contact support (10) remote from said shaft (9), said free end (24) having a free end face (24A), said free end face (24A) being parallel to an axis (X) of said shaft (9);
the moving contact (30) is provided with a bottom surface (30A), and the moving contact (30) is welded on the free end surface (24A) of the connecting piece (20) through the bottom surface (30A).
2. A movable contact assembly as claimed in claim 1, wherein said connecting member (20) is of unitary construction with said movable contact support (10).
3. The movable contact assembly of claim 2 wherein said unitary structure is a sheet metal bent structure.
4. A moving contact assembly as claimed in claim 3, characterized in that the fixed end (22) of the connecting element (20) is formed by bending the end (12) of the moving contact carrier (10) remote from the axis (9).
5. A movable contact assembly as claimed in claim 1, wherein said movable contact bottom surface (30A) is at least partially coincident with a free end face (24A) of said connecting member (20).
6. A movable contact assembly as claimed in claim 1, wherein when said movable contact (30) is welded to said free end face (24A) of said connecting member (20) via said bottom surface (30A), said long sides (302) and said wide sides (304) of said movable contact bottom surface (30A) and said long sides (242) and said wide sides (244) of said free end face (24A) are a positioning reference.
7. A movable contact assembly as claimed in claim 1, wherein said movable contact (30) is made of a copper alloy.
8. A movable contact assembly as claimed in claim 1, wherein said movable contact support (10) is made of iron.
9. A circuit breaker comprising a movable contact assembly (100) according to any of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200716371U CN202076146U (en) | 2011-03-17 | 2011-03-17 | Moving contact subassembly and breaker with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200716371U CN202076146U (en) | 2011-03-17 | 2011-03-17 | Moving contact subassembly and breaker with the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202076146U true CN202076146U (en) | 2011-12-14 |
Family
ID=45114237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200716371U Expired - Lifetime CN202076146U (en) | 2011-03-17 | 2011-03-17 | Moving contact subassembly and breaker with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202076146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598607A (en) * | 2016-03-03 | 2016-05-25 | 温州深科检测设备有限公司 | Electromagnetic system fixture |
-
2011
- 2011-03-17 CN CN2011200716371U patent/CN202076146U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598607A (en) * | 2016-03-03 | 2016-05-25 | 温州深科检测设备有限公司 | Electromagnetic system fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |