CN106981750B - Multi-contact type contact piece and processing method thereof - Google Patents
Multi-contact type contact piece and processing method thereof Download PDFInfo
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- CN106981750B CN106981750B CN201710343027.4A CN201710343027A CN106981750B CN 106981750 B CN106981750 B CN 106981750B CN 201710343027 A CN201710343027 A CN 201710343027A CN 106981750 B CN106981750 B CN 106981750B
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- grid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
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Abstract
The invention discloses a multi-contact type contact, comprising: the side wall of the cylindrical body is provided with a plurality of groups of grid bars with unequal widths, and two ends of the grid bars are respectively positioned at the end parts of the cylindrical body. Compared with the traditional grid arrangement mode with equal width and equal spacing, the grid arrangement mode with unequal width and unequal spacing has longer service life, and because the grid forward pressure with relatively wider width is larger than the grid forward force with narrower width at the initial stage of use, the abrasion quantity of the wider grid is larger than that of the narrower grid, and the narrower grid starts to be abraded along with the increase of the using times. The invention also discloses a processing method of the multi-contact type contact, which comprises the following steps: stamping a non-equidistant grid on the sheet; rolling the sheet into a cylindrical shape. It can be appreciated that non-equidistant bars are formed on the sheet material, and the service life is longer than that of the conventional arrangement mode of bars with equal width and equal distance.
Description
Technical Field
The invention relates to the field of high-current connectors, in particular to a multi-contact type contact and a processing method thereof.
Background
Along with the development of the heavy current connection industry, the requirements on the current contact are higher and higher, and the requirements on temperature rise, plugging service life, plugging force, current carrying capacity of the heavy current contact are caused, so that when the conventional contact meets various requirements, a series of problems of high and complex requirements on precision of part manufacturing and assembly and the like are accompanied.
The contact pieces commonly used in the prior art are mostly of cylindrical structures with equal-width and equal-interval grid bars, but the precision of the structures is difficult to control, the manufacturing cost is high, the mass production is not facilitated, and the service life is short.
Therefore, how to provide a multi-contact type contact with a longer service life is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a multi-contact type contact, and another aim is to provide a processing method of the multi-contact type contact, which can effectively solve the problems of short service life, complex manufacturing process, unfavorable batch production and the like.
In order to solve the technical problems, the invention provides the following technical scheme:
a multi-contact comprising: the side wall of the cylindrical body is provided with a plurality of groups of grid bars with unequal widths, and two ends of the grid bars are respectively positioned at the end parts of the cylindrical body.
Preferably, the grid bars comprise wide grid bars and narrow grid bars which are sequentially arranged at intervals, and the widths of the end parts of the wide grid bars and the end parts of the narrow grid bars are larger than the widths of the middle parts of the wide grid bars and the narrow grid bars.
Preferably, the wide bars and the narrow bars are each provided on a side wall of the cylindrical body at a preset helix angle.
Preferably, the side wall of the cylindrical body is of a stamped inward concave arc structure.
Preferably, the cylindrical body is formed by rolling a parallelogram sheet, and the rolling joints at two sides of the parallelogram sheet are respectively provided with a concave part and a convex part.
A method of processing a multi-contact, comprising:
stamping a non-equidistant grid on the sheet;
the sheet punched out of the grille is rolled into a cylindrical shape.
Preferably, the arcuate structure is punched in the sheet material after punching the non-equally spaced grid before rolling into a cylindrical shape.
Preferably, the cooperating depressions and protrusions are punched in the web of sheet material prior to rolling into a cylindrical shape.
Preferably, the grid is an inclined grid with a preset included angle with the horizontal direction.
Preferably, the sheet is a parallelogram sheet.
Compared with the prior art, the technical scheme has the following advantages:
the invention provides a multi-contact type contact element, which comprises: the side wall of the cylindrical body is provided with a plurality of groups of grid bars with unequal widths, and two ends of the grid bars are respectively positioned at the end parts of the cylindrical body. Compared with the traditional grid arrangement mode with equal width and equal spacing, the grid arrangement mode with unequal width and unequal spacing has longer service life, and because the grid forward pressure with relatively wider width is larger than the grid forward force with narrower width at the initial stage of use, the abrasion quantity of the wider grid is larger than that of the narrower grid, and the narrower grid starts to be abraded along with the increase of the using times.
The invention also provides a processing method of the multi-contact type contact element, which comprises the following steps: stamping a non-equidistant grid on the sheet; rolling the sheet into a cylindrical shape. It can be appreciated that non-equidistant bars are formed on the sheet material, and the service life is longer than that of the conventional arrangement mode of bars with equal width and equal distance.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a multi-contact according to an embodiment of the present invention;
FIG. 2 is a schematic axial cross-sectional view of a multi-contact according to one embodiment of the present invention;
fig. 3 is a schematic plan view of a multi-contact according to an embodiment of the present invention.
Fig. 4 is a schematic flow chart of a method for processing a multi-contact according to an embodiment of the invention.
The reference numerals are as follows:
1 is a cylindrical body, 2 is a grid, 21 is a wide grid, 22 is a narrow grid, 3 is an arc-shaped structure, 4 is a concave part, and 5 is a convex part.
Detailed Description
As described in the background section, current contacts are not only complex to manufacture but also have a short life.
Based on the above study, the embodiment of the invention provides a multi-contact type contact, non-equal-width and non-equal-spacing grid arrangement mode, compared with the traditional equal-width and equal-spacing grid arrangement mode, the service life is longer, because the positive pressure of the grid with relatively wider width is larger than the positive force of the grid with narrower width at the initial stage of use, the abrasion loss of the grid with wider width is larger than that of the grid with narrower width, and the grid with narrower width starts to be abraded along with the increase of the use times.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than those herein described, and those skilled in the art may readily devise numerous other arrangements that do not depart from the spirit of the invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.
Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a multi-contact according to an embodiment of the present invention; FIG. 2 is a schematic axial cross-sectional view of a multi-contact according to one embodiment of the present invention; fig. 3 is a schematic plan view of a multi-contact according to an embodiment of the present invention.
One embodiment of the present invention provides a multi-contact type contact, comprising: the cylindrical body 1, be equipped with multiunit non-equidistant wide grid 2 on the lateral wall of cylindrical body 1, the both ends of grid 2 are located respectively the tip of cylindrical body 1.
In this embodiment, a plurality of groups of non-uniform width bars 2 can be punched on a sheet through a punching die, meanwhile, the bars 2 are punched with a required radian, and then rolled into a cylindrical structure, wherein the arrangement mode of the bars 2 with non-uniform width (as dimension C > D in fig. 3) and non-uniform spacing (as dimension B > a in fig. 3) is longer in service life than the conventional arrangement mode of the bars with uniform width and uniform spacing, and because the positive pressure of the bars 2 with relatively wide width is larger than the positive force of the bars 2 with narrower width in the initial stage of use, the abrasion amount of the bars 2 with wider width is larger than that of the bars 2 with narrower width, and the bars 2 with narrower width start to be abraded with the increase of the number of times of use. In addition, the existing contact piece also needs to rotate at a certain angle after being stamped and formed to form axle center gathering, but the rotation precision is difficult to control, the matched contact interference quantity is affected, and the situation that the plugging force and the loading capacity are unstable is caused.
Further, the grid 2 comprises a wide grid 21 and a narrow grid 22 which are sequentially arranged at intervals, and the width of the ends of the wide grid 21 and the narrow grid 22 is larger than that of the middle of the narrow grid 22. Therefore, the strength of the grid 2 can be effectively improved, and the service life of the grid 2 is further prolonged.
Further, the wide bars 21 and the narrow bars 22 are each provided on the side wall of the cylindrical body at a preset helix angle. The size of the preset spiral angle can be selected according to the specific situation, and the embodiment is not limited thereto.
The side wall of the cylindrical body 1 is a concave arc structure 3 formed by stamping. It will be appreciated that the axial cross section of the cylindrical body 1 is of double-arc configuration.
Further, the cylindrical body 1 is formed by rolling a parallelogram sheet, and the rolling joints at two sides of the parallelogram sheet are respectively provided with a concave part 4 and a convex part 5. By the mutual butt joint of the convex part 5 and the concave part 4, not only the butt joint efficiency but also the rolling precision can be improved. The non-equidistant grid bars can be formed by stamping non-equidistant grid bars on the parallelogram sheet, so that the method is suitable for mass production and further improves the production efficiency. In addition, the concave arc-shaped structure 3 can be punched on the parallelogram sheet, so that the cylindrical body 1 of the concave double-arc-shaped structure 3 can be formed by directly rolling, the processing is simple, and the generation efficiency is easy to improve.
Referring to fig. 4, fig. 4 is a flow chart of a method for manufacturing a multi-contact according to an embodiment of the invention.
The embodiment of the invention also provides a processing method of the multi-contact type contact element, which comprises the following steps:
s10: non-equidistant grids are punched in the sheet. It can be appreciated that non-equidistant bars are formed on the sheet material, and the service life is longer than that of the conventional arrangement mode of bars with equal width and equal distance.
S20: rolling the sheet material of the grille at the stamping position into a cylinder shape.
Further, before rolling into a cylindrical shape, after punching the non-equidistant grid, the method further comprises the following steps:
s11: and stamping an arc-shaped structure on the sheet. Because the arc structure is stamped before the coiling, therefore after the coiling, the contact piece with the concave arc structure side wall can be formed, so that the processing is convenient, the batch production is convenient, and the working efficiency is further improved.
Further, before rolling into a cylindrical shape, the method further comprises the following steps:
s12: and stamping matched concave parts and convex parts at the rolling joint of the sheet materials. Through mutual butt joint of concave part and bellying, the location after the rolling of being convenient for improves the butt joint precision.
Wherein, the grid is an inclined grid which forms a preset included angle with the horizontal direction. Regarding the magnitude of the preset included angle, this embodiment is not limited, and is specific as the case may be.
Furthermore, the sheet is preferably a parallelogram sheet.
It should also be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A multi-contact, comprising: the cylindrical body, be equipped with multiunit non-equidistant wide grid on the lateral wall of cylindrical body, the both ends of grid are located respectively the tip of cylindrical body, the grid is including wide grid and the narrow grid that the interval set up in proper order, wide grid with the width of narrow grid tip all is greater than the width at its own middle part, cylindrical body is a parallelogram sheet roll-up and forms, the roll-up of parallelogram sheet both sides connects do not to be equipped with depressed part and bellying.
2. The multi-contact of claim 1, wherein the wide bars and the narrow bars are each disposed on a sidewall of the cylindrical body at a predetermined helix angle.
3. A method of processing a multi-contact for processing the multi-contact of claim 1 or 2, the method comprising:
stamping a non-equidistant grid on the sheet;
the sheet punched out of the grille is rolled into a cylindrical shape.
4. A method of manufacturing a multi-contact according to claim 3, wherein, prior to rolling into a cylindrical shape, after stamping the non-equally spaced grid, an arcuate structure is stamped into the sheet.
5. The method of claim 4, wherein mating depressions and protrusions are stamped at the roll-to-roll joint of the sheet material prior to rolling into a cylindrical shape.
6. The method of claim 5, wherein the grid is an inclined grid having a predetermined angle to the horizontal.
7. The method of processing a multi-contact according to any one of claims 3 to 6, wherein the sheet is a parallelogram-shaped sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343027.4A CN106981750B (en) | 2017-05-16 | 2017-05-16 | Multi-contact type contact piece and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343027.4A CN106981750B (en) | 2017-05-16 | 2017-05-16 | Multi-contact type contact piece and processing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106981750A CN106981750A (en) | 2017-07-25 |
| CN106981750B true CN106981750B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710343027.4A Active CN106981750B (en) | 2017-05-16 | 2017-05-16 | Multi-contact type contact piece and processing method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537543B (en) * | 2018-11-22 | 2020-10-30 | 中国水电四局(祥云)工程建设有限公司 | Method for integrally manufacturing drain chamber trash blocking grid plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202444090U (en) * | 2012-02-29 | 2012-09-19 | 泰科电子(上海)有限公司 | Connector |
| CN202523884U (en) * | 2011-11-23 | 2012-11-07 | 深圳市华惠连接器有限公司 | Parallelogram sheet metal and the stamping forming Dou bar crown spring |
| CN105470682A (en) * | 2015-07-22 | 2016-04-06 | 中航光电科技股份有限公司 | Jack and electric connector using same |
| CN206893841U (en) * | 2017-05-16 | 2018-01-16 | 东莞中探探针有限公司 | A kind of Multi-contact contact |
-
2017
- 2017-05-16 CN CN201710343027.4A patent/CN106981750B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202523884U (en) * | 2011-11-23 | 2012-11-07 | 深圳市华惠连接器有限公司 | Parallelogram sheet metal and the stamping forming Dou bar crown spring |
| CN202444090U (en) * | 2012-02-29 | 2012-09-19 | 泰科电子(上海)有限公司 | Connector |
| CN105470682A (en) * | 2015-07-22 | 2016-04-06 | 中航光电科技股份有限公司 | Jack and electric connector using same |
| CN206893841U (en) * | 2017-05-16 | 2018-01-16 | 东莞中探探针有限公司 | A kind of Multi-contact contact |
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| Publication number | Publication date |
|---|---|
| CN106981750A (en) | 2017-07-25 |
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Denomination of invention: A multi contact contact component and its processing method Effective date of registration: 20230926 Granted publication date: 20230714 Pledgee: Industrial and Commercial Bank of China Limited Dongguan Humen Branch Pledgor: DONGGUAN C.C.P. CONTACT PROBES Co.,Ltd. Registration number: Y2023980058812 |