CN204332877U - The moving contact component of miniature circuit breaker - Google Patents
The moving contact component of miniature circuit breaker Download PDFInfo
- Publication number
- CN204332877U CN204332877U CN201420871193.3U CN201420871193U CN204332877U CN 204332877 U CN204332877 U CN 204332877U CN 201420871193 U CN201420871193 U CN 201420871193U CN 204332877 U CN204332877 U CN 204332877U
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- moving contact
- contact
- holddown groove
- support
- circuit breaker
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Abstract
The utility model provides a kind of moving contact component of miniature circuit breaker, comprise the moving contact that the contact support that is made up of plastics and metal are formed, one end of described contact support is provided with holddown groove, be provided with riveting post in described holddown groove, one end of described moving contact is by rivet hole rivet clasp on described riveting post, and the other end of described moving contact extends described holddown groove, ensure that moving contact component connects by said structure more firm, and with low cost, technique is simple, is applicable to large-scale production.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, particularly relates to a kind of moving contact component being applicable to miniature circuit breaker.
Background technology
Contact system is indispensable part in miniature circuit breaker, can be used to connect or point deenergizing, contact system comprises contact support, contact support can be used to connect moving contact, trip gear, electromagnet etc., generally be made up of metal, but such metal contact support is eliminated gradually due to factors such as cost are high, heat-proof quality is poor.At present, what market generally adopted be mode is that the material of contact support is replaced with plastics, usually the connected mode adopted directly adopts super glue the support of plastics contact and metal moving contact to be bonded together, but deal is not easily held during point glue, deal is many, and glue easily overflows, flowing on moving contact causes energising bad, and deal has been lacked and then occurred connecting unstable phenomenon, and selects the production efficiency of the jockey of the program lower.
Utility model content
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is to provide the moving contact component of the more reliable miniature circuit breaker of a kind of connection.
For solving the problems of the technologies described above, the utility model provides a kind of moving contact component of miniature circuit breaker, comprise the moving contact that the contact support that is made up of plastics and metal are formed, one end of described contact support is provided with holddown groove, riveting post is provided with in described holddown groove, one end of described moving contact is by rivet hole rivet clasp on described riveting post, and the other end of described moving contact extends described holddown groove.
Preferably, one end that described moving contact is connected with described contact support is polygon, and described holddown groove is also in polygon suitable with the shape of described moving contact.
Preferably, the reference column that the middle part of described contact support is provided with, the axle center along reference column is provided with through hole, and described contact support is hinged in a rotating shaft by described through hole.
As mentioned above, the moving contact component of the miniature circuit breaker that the utility model relates to, has following beneficial effect: the moving contact component that the utility model provides is connected firmly, and manufacturing process is simple, with low cost, is applicable to large-scale production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the first embodiment that contact is supported.
Fig. 3 is the structural representation of the second embodiment that contact is supported.
Fig. 4 is the end view of Fig. 3.
Fig. 5 is the structural representation of moving contact.
Element numbers explanation
1 contact support
11 holddown grooves
12 riveting posts
13 reference columns
131 through holes
2 moving contacts
21 rivet holes
3 rotating shafts
Embodiment
By particular specific embodiment, execution mode of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
Notice, structure, ratio, size etc. that this specification institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
See Fig. 1 to Fig. 5, the utility model provides a kind of moving contact component of miniature circuit breaker, comprise the moving contact 2 that the contact support 1 that is made up of plastics and metal are formed, one end of described contact support 1 is provided with holddown groove 11, in order to make moving contact and contact Supporting connectivity more firm, riveting post 12 is provided with in described holddown groove 11, rivet hole 21 rivet clasp is passed through on described riveting post 12 in one end of described moving contact 2, the other end of described moving contact 2 extends described holddown groove 11, can contact with the fixed contact (not shown) on miniature circuit breaker, described moving contact 2 then welds together with the contact-making surface of contact support 1.Preferably, one end that described moving contact 2 is connected with described contact support 1 is polygon, described holddown groove 11 is also in polygon suitable with the shape of described moving contact 2, one end of moving contact 2 is clamped in holddown groove 11 to adopt this structure to ensure, improve the force-bearing situation that moving contact 2 and contact support 1 rivet welding position, improve moving contact 2 and support 1 reliability be connected with contact.As shown in Figures 2 and 3, preferably, the middle part of described contact support 1 is provided with reference column 13, and the axle center along reference column 13 is provided with through hole 131, and described contact support 1 is hinged in a rotating shaft 3 by described through hole 131.Fig. 2 and Fig. 3 is two kinds of embodiments that contact supports 1, go in different miniature circuit breakers, its difference is only that the position of holddown groove 11 is different, and the holddown groove 11 of Fig. 2 is located at the front that contact supports 1, and the holddown groove 11 of Fig. 3 is located at the reverse side that contact supports 1.
The manufacture method of the above-mentioned moving contact component that the utility model provides, comprises the following steps:
S1, manufacture described contact respectively and support 1 and moving contact 2, then one end of moving contact 2 being embedded described contact supports in the holddown groove 11 of 1, and the rivet hole 21 on moving contact 2 is enclosed within the riveting post 12 of described contact support 1, guarantees that described moving contact 2 is clamped in holddown groove 11;
S2, contact is supported 1 and the assembly clamping of moving contact 2 on hot-riveting device, start hot-riveting device, moving contact 2 is preheated, the described pre-warmed time is 5-10ms, if pre-warmed deficiency of time 5ms, contact can be affected and support 1 and the bonding strength of moving contact 2, make it connect insecure, and if the pre-warmed time more than 10ms, the contact contacted with moving contact 2 supports 1 surface melting in advance, contact support 1 starts distortion, is unfavorable for the control of subsequent thermal riveting welding step, preferably, when preheating time is 6ms, effect is best.In addition, higher than contact, described pre-heating temperature must not support that 1 surface starts the temperature of melting, prevents contact from supporting 1 surface melting in advance, affects the intensity of rivet hot welding.
S3, setting air pressure is 0.2-0.5MPa, select 0.2MPa best, then pressurize 5 ~ 10ms, moving contact 2 is pressed in holddown groove 11, then the end of rivet hot post 12 is added to melting, and form rivet clasp head in the outside of moving contact 2, moving contact 2 rivet clasp is made to support on 1 at contact, control by the electric current of moving contact 2 is 30-40kA simultaneously, be preferably 35kA, the heat now moving contact 2 produced can pass to rapidly in the contact support 1 that is in contact with it and make its surface start melting and weld together with moving contact 2, what control was energized holds time between 10ms ~ 20ms, when being less than 10ms if held time, moving contact 2 and contact can be caused to support that the bonding strength between 1 is inadequate, there is dry joint phenomenon, tensile test does not reach the requirement of 80N, if hold time more than 20ms, contact supports that the inside of 1 also can deliquescing, riveting post 13 likely ruptures, and entirety can be out of shape, be difficult to be assemblied in miniature circuit breaker after cooling curing, so that scrappage increases, preferably, when holding time as 10ms, effect is best, riveted face is bright and clean, contact support 1 there will not be the phenomenon of distortion.
S4, cooling, makes melting position rapid solidification.
In sum, the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (3)
1. the moving contact component of a miniature circuit breaker, it is characterized in that, comprise the moving contact (2) of contact support (1) and the metal formation be made up of plastics, one end of described contact support (1) is provided with holddown groove (11), riveting post (12) is provided with in described holddown groove (11), one end of described moving contact (2) is by rivet hole (21) rivet clasp on described riveting post (12), and the other end of described moving contact (2) extends described holddown groove (11).
2. moving contact component according to claim 1, it is characterized in that: one end that described moving contact (2) is connected with described contact support (1) is polygon, described holddown groove (11) is also in polygon suitable with the shape of described moving contact (2).
3. moving contact component according to claim 1, it is characterized in that: the reference column (13) that the middle part of described contact support (1) is provided with, axle center along reference column (13) is provided with through hole (131), and described contact support (1) is hinged in a rotating shaft (3) by described through hole (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871193.3U CN204332877U (en) | 2014-12-31 | 2014-12-31 | The moving contact component of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871193.3U CN204332877U (en) | 2014-12-31 | 2014-12-31 | The moving contact component of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204332877U true CN204332877U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871193.3U Active CN204332877U (en) | 2014-12-31 | 2014-12-31 | The moving contact component of miniature circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN204332877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576246A (en) * | 2014-12-31 | 2015-04-29 | 上海永继电气股份有限公司 | Moving contact assembly of miniature circuit breaker and manufacturing method thereof |
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2014
- 2014-12-31 CN CN201420871193.3U patent/CN204332877U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576246A (en) * | 2014-12-31 | 2015-04-29 | 上海永继电气股份有限公司 | Moving contact assembly of miniature circuit breaker and manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |