CN217788842U - Improved metal plug bush for electric connector - Google Patents
Improved metal plug bush for electric connector Download PDFInfo
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- CN217788842U CN217788842U CN202221874005.3U CN202221874005U CN217788842U CN 217788842 U CN217788842 U CN 217788842U CN 202221874005 U CN202221874005 U CN 202221874005U CN 217788842 U CN217788842 U CN 217788842U
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- plug bush
- width
- elastic sheet
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- 239000002184 metal Substances 0.000 title claims abstract description 30
- 238000003780 insertion Methods 0.000 claims abstract description 16
- 230000037431 insertion Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 239000012634 fragment Substances 0.000 abstract description 17
- 238000010030 laminating Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process 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
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Abstract
The utility model provides an improved metal plug bush for an electric connector, which comprises a plug bush body, a riveting part fixedly connected with a cable and a drum spring part; the drum spring part is constructed into a concave fence structure formed by a plurality of contact elastic sheets, and the contact elastic sheets are long-strip-shaped and are bent and raised towards the center of the central axis of the drum spring part; the contact elastic sheet comprises a front end adjacent to the insertion end of the plug bush, and the other end of the contact elastic sheet is a rear end; the contact elastic sheet is in a non-uniform width structure, and the width of the front end of the contact elastic sheet is smaller than that of the middle part of the contact elastic sheet. The utility model discloses set the contact shell fragment of drum spring portion to "not aequilate" structure, it is thinner to insert the width of end, the shell fragment is thinner more, deformability is bigger, the resistance received when the contact pin inserts is less, make things convenient for inserting of contact pin, and the width at the middle part of contact shell fragment is bigger, and the position laminating that the width is bigger can be inseparabler, and contact resistance can be more stable, can guarantee the inseparable butt of contact shell fragment and contact pin to make the grafting combine more reliably.
Description
Technical Field
The utility model relates to an electric connector's accessories field of manufacturing especially relates to a metal plug bush for improved electric connector.
Background
The electrical connector generally comprises a plug and a socket (or called a male plug and a female plug), wherein the plug is also called a free end connector, and the socket is also called a fixed end connector, and the connection and disconnection of the circuit are realized by the insertion, combination and separation of the plug and the socket, so that various connection modes of the plug and the socket are generated. The plugging of the electric connector must be well contacted, and the reliability directly influences the electric connection performance; the metal terminals disposed inside the electrical connector casing generally include pins and sleeves respectively disposed inside the male plug and the female plug, which are key elements of the electrical connector, and the structure of the metal terminals directly affects the reliability of the electrical connector and the difficulty of the electrical connector during plugging.
In a circular electrical connector commonly used in a photovoltaic module connection system, in order to ensure contact reliability between metal terminals, a drum spring is generally disposed on a plug bush, and the drum spring plays a role in effectively contacting with a contact pin and transmitting current, and is a very important component. The drum spring produced and applied in the industry at present is formed by a fence structure formed by surrounding a plurality of contact elastic sheets which are evenly distributed at intervals, and each contact elastic sheet is concave inwards in the center, so that the whole fence structure is in a basket shape with the concave middle part. However, in the actual insertion process of the drum spring, the problem of relatively large insertion resistance exists, and for the structure of the drum spring separated from the plug bush body, the drum spring is clamped in the plug bush body, so that when the insertion force is too large, the problems of displacement, deformation and the like of the drum spring in the plug bush body are easily caused; and to drum spring and plug bush body integrated into one piece's structure, when the insertion force was too big, work efficiency when firstly can influence the system connection, also for causing the problem of drum spring structural deformation in addition, lead to the unstable condition of contact resistance. To solve the above problems, further improvement in the structure of the drum spring is required.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the insertion resistance that electric connector's contact pin and plug bush lead to because of drum spring portion is great, the laminating degree is not enough, contact resistance is unstable among the prior art, and the metal plug bush for electric connector that provides of a modified can guarantee the contact reliability of contact pin and plug bush on the basis that reduces the grafting resistance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an improved metal plug bush for an electric connector comprises a plug bush body, a riveting part and a drum spring part, wherein the riveting part is fixedly connected with a cable; the drum spring part is constructed into a concave fence structure formed by a plurality of contact elastic sheets, and the contact elastic sheets are long-strip-shaped and are bent and raised towards the center of the central axis of the drum spring part; the contact spring piece comprises a front end adjacent to the insertion end of the plug bush, and the other end of the contact spring piece is a rear end; the contact elastic sheet is of a non-uniform width structure, and the width of the front end of the contact elastic sheet is smaller than that of the middle part.
Preferably, the drum spring portion is clamped inside the plug bush body and comprises a first end, a second end and a plurality of contact elastic pieces, wherein the first end and the second end are integrally connected and cylindrical, the contact elastic pieces are located between the first end and the second end and are spaced from each other, the front end of each contact elastic piece is connected with the first end, and the rear end of each contact elastic piece is connected with the second end.
Preferably, the contact spring is integrally formed with the first end and the second end of the drum spring portion by a stamping process.
Preferably, the drum spring part is integrally formed with the plug bush body and is arranged adjacent to the insertion end of the metal plug bush.
Preferably, the width of the contact elastic sheet gradually increases from the front end to the rear end.
Preferably, the width of the contact spring is designed to be narrow at two ends and wide at the middle, that is, the widths of the front end and the rear end of the contact spring are smaller than the width of the middle part.
Preferably, the contact spring pieces are the same in size and shape and are arranged at uniform intervals.
Preferably, the plug bush body is provided with a plurality of barb structures along the circumferential direction at positions adjacent to the riveting parts.
Preferably, the barb structure is integrally formed directly on the plug bush body by a material stamping process.
Preferably, the plug bush body is sleeved with a clamping ring at a position adjacent to the riveting part, and the barb structure is formed on the clamping ring along the circumferential direction through a stamping process.
Compared with the prior art, the beneficial effects of the utility model are that, contact shell fragment width to current drum spring portion is the same, can't compromise insert, pull out convenience and electric contact reliability and compare, the utility model discloses set "not aequilate" structure with the contact shell fragment of drum spring portion, it is thinner to insert the width of end, the shell fragment is thin more, deformability is big more, the resistance received when the contact pin inserts is less, make things convenient for inserting of contact pin, and the width at the middle part of contact shell fragment is bigger, and the position laminating that the width is bigger can be inseparabler, and contact resistance can be more stable, can guarantee the inseparable butt of contact shell fragment and contact pin to make the grafting combine more reliably.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a drum spring of an improved metal plug bush for an electrical connector according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an improved metal plug bush for an electrical connector according to another embodiment of the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The utility model discloses an improved metal plug bush for electric connector, including plug bush body, riveting portion and drum spring portion fixed with cable conductor connection, the drum spring portion set up in the front end of plug bush body (the one end that the plug needle inserted), the plug bush body is constructed as hollow cylindric like current metal plug bush, its location mode with drum spring portion adopts the location structure the same as current plug bush, riveting portion also designs as with current plug bush riveting portion, the utility model discloses no longer describe repeatedly; the drum spring portion may be a separate member inserted into the socket body as shown in fig. 1 or may be integrally formed with the socket body as shown in fig. 2.
As shown in fig. 1, the drum spring portion 10 of the improved metal plug bush for an electrical connector according to an embodiment of the present invention is clamped inside the metal plug bush body, and includes a first end 11, a second end 12 and a concave fence structure 13 located between the first end 11 and the second end 12, the first end 11 and the second end 12 are both round openings, the fence structure 13 is composed of a plurality of contact elastic pieces 131 spaced from each other, the contact elastic pieces 131 are in a shape of a long strip, the front ends of the contact elastic pieces 131 are connected to the first end 11, the rear ends of the contact elastic pieces 131 are connected to the second end 12, and each contact elastic piece 131 is bent and protruded toward the center of the central axis of the drum spring portion 10; the direction along the axis of the drum spring part 10 is set as the length direction of the contact spring piece 131, the first end 11 is set as the insertion end of the pin and the plug bush, the contact spring piece 131 is in an unequal width structure, and the width of the contact spring piece 131 at one end of the insertion end of the drum spring part, namely the front end, is thinner than the width of the middle part.
In a preferred embodiment, the width of the contact spring 131 gradually increases from the front end to the rear end.
In another preferred embodiment, the width of the contact spring piece 131 is designed to be a configuration with two narrow ends and a middle wide, that is, the width of the contact spring piece 131 at the front end and the second end of the drum spring part is thinner than the width of the middle part.
Preferably, all contact shell fragment 131 size and shape are the same and the interval evenly sets up, and this structure can make contact pin and plug bush grafting back, and the contact pin wholly receives even tight hoop dynamics, prevents that the contact pin is crooked to deviate from in the plug bush.
Preferably, the contact elastic piece 131 is integrally formed with the first end 11 and the second end 12 of the drum spring portion 10 through a stamping process, so that the toughness and elasticity of the contact elastic piece can be effectively enhanced, and the contact elastic piece is prevented from being broken.
As shown in fig. 2, the metal plug bush for an improved electrical connector according to another embodiment of the present invention includes a drum spring portion integrally formed with a plug bush body, referring to fig. 2, the metal plug bush includes a plug bush body 20, a drum spring portion 10' integrally formed with the plug bush body and disposed at a front end (i.e. a plug pin insertion end) of the plug bush body 20, and a rivet joint end 30 disposed at a rear end of the plug bush body 20, the drum spring portion 10 is used for tightening and contacting the plug pin, so that the electrical connector forms a stable electrical connection, and the rivet joint portion 30 is used for connecting and fixing a cable.
Similarly, the drum spring part 10 'is designed to be a concave fence structure 13', the fence structure 13 'is formed by a plurality of contact elastic pieces 131 which are spaced from each other, the contact elastic pieces 131 are long, and each contact elastic piece 131 is bent and protruded towards the center of the central axis of the drum spring part 10'; the direction along the axis of the drum spring portion 10' is set to be the length direction of the contact spring piece 131, the contact spring piece 131 is of an unequal width structure, one end of the contact spring piece, which is close to the insertion end 11' of the plug bush, is defined as a first end or a front end, the other end 12' is defined as a second end or a rear end, and the width of the first end is narrower than that of the middle portion.
In a preferred embodiment, the width of the contact spring 131 gradually increases from the first end to the second end 12'.
In another preferred embodiment, the width of the contact spring piece 131 is designed to be a configuration with two narrow ends and a middle wide, that is, the width of the first end and the second end of the contact spring piece 131 at the drum spring part is thinner than the width of the middle part.
Preferably, all contact shell fragment 131 size and shape are the same and the interval evenly sets up, and this structure can make contact pin and plug bush grafting back, and the contact pin wholly receives even hoop dynamics, prevents that the contact pin from crooked deviating from in the plug bush.
In another preferred embodiment, the plug bush body 20 on adjacent riveting portion's position be equipped with a plurality of barb structures 22 along the circumferencial direction, when the plug bush was installed in the connector shell, plug bush shell inner wall correspond the position set up with barb structure 22 assorted stair structure, barb structure 22 blocks admittedly with stair structure each other, avoids the plug bush to receive the electric cable to pull and leads to becoming flexible or to drop from the mounted position. The barb structure 22 may be formed directly on the plug bush body by a material stamping process, or as shown in fig. 2, the plug bush body 20 is sleeved with the collar 21 at a position adjacent to the riveting portion, and the barb structure is formed on the collar 21 by a stamping process along a circumferential direction.
The utility model discloses a modified metal contact pin for connector, contact shell fragment width to current drum spring portion is the same, can't compromise and insert, pull out convenience and electric contact reliability's problem, set "not aequilate" structure with the contact shell fragment of drum spring portion, it is thinner to insert the width of end, the shell fragment is thinner more, deformability is big more, the resistance received when the contact pin inserts is less, make things convenient for inserting of contact pin, the width at the middle part of contact shell fragment is bigger, the position laminating that the width is bigger can be inseparabler, contact resistance can be more stable, can guarantee the inseparable butt of contact shell fragment and contact pin, thereby make the grafting combine more reliably.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (10)
1. An improved metal plug bush for an electric connector is characterized in that the metal plug bush comprises a plug bush body, a riveting part fixedly connected with a cable and a drum spring part; the drum spring part is constructed into a concave fence structure formed by a plurality of contact elastic sheets, and the contact elastic sheets are long-strip-shaped and are bent and raised towards the center of the central axis of the drum spring part; the contact elastic sheet comprises a front end adjacent to the insertion end of the plug bush, and the other end of the contact elastic sheet is a rear end; the contact elastic sheet is in a non-uniform width structure, and the width of the front end of the contact elastic sheet is smaller than that of the middle part of the contact elastic sheet.
2. The improved metal plug bush for the electric connector as claimed in claim 1, wherein the drum spring portion is clamped inside the plug bush body and comprises a first end, a second end and a plurality of contact spring pieces, the first end and the second end are integrally connected, the contact spring pieces are located between the first end and the second end and are spaced from each other, the front end of each contact spring piece is connected with the first end, and the rear end of each contact spring piece is connected with the second end.
3. The improvement of claim 2 wherein said contact spring is integrally formed with said first and second ends of said drum spring portion by a stamping process.
4. An improved metal sleeve for an electrical connector as defined in claim 1, wherein said drum spring portion is integrally formed with the sleeve body adjacent the insertion end of the metal sleeve.
5. An improved metal insert sleeve for electrical connectors as in claim 2 or 4 wherein said contact spring has a width that increases from front to back.
6. An improved metal plug bush for electric connector as claimed in claim 2 or 4, wherein the width of said contact spring is designed to be narrow at both ends and wide at the middle, i.e. the width of the front and rear ends of the contact spring is narrower than the width of the middle part.
7. The improved metal plug bush for electric connectors as claimed in claim 1, wherein said contact spring pieces are identical in size and shape and are uniformly spaced.
8. The improved metal sleeve of claim 1 wherein said sleeve body is provided with a plurality of barbs circumferentially adjacent said rivet.
9. An improved metal sleeve for an electrical connector as in claim 8 wherein said barb structure is integrally formed directly on the sleeve body by a material stamping process.
10. The improved metal sleeve of claim 8 wherein said sleeve body is provided with a collar adjacent said rivet, said barb being formed in said collar by a stamping process in a circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221874005.3U CN217788842U (en) | 2022-07-20 | 2022-07-20 | Improved metal plug bush for electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221874005.3U CN217788842U (en) | 2022-07-20 | 2022-07-20 | Improved metal plug bush for electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217788842U true CN217788842U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221874005.3U Active CN217788842U (en) | 2022-07-20 | 2022-07-20 | Improved metal plug bush for electric connector |
Country Status (1)
| Country | Link |
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| CN (1) | CN217788842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115621777A (en) * | 2022-11-14 | 2023-01-17 | 苏州快可光伏电子股份有限公司 | An improved electrical connector |
-
2022
- 2022-07-20 CN CN202221874005.3U patent/CN217788842U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115621777A (en) * | 2022-11-14 | 2023-01-17 | 苏州快可光伏电子股份有限公司 | An improved electrical connector |
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