CN113471735A - Drum-shaped electric contact assembly and jack terminal - Google Patents
Drum-shaped electric contact assembly and jack terminal Download PDFInfo
- Publication number
- CN113471735A CN113471735A CN202110573949.0A CN202110573949A CN113471735A CN 113471735 A CN113471735 A CN 113471735A CN 202110573949 A CN202110573949 A CN 202110573949A CN 113471735 A CN113471735 A CN 113471735A
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- CN
- China
- Prior art keywords
- spring
- inner sleeve
- drum
- sleeve
- shaped
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- 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.)
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Classifications
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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
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
-
- 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
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/42—Securing in a demountable manner
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
Abstract
The invention discloses a drum-shaped electric contact component and a jack terminal; the drum-shaped electrical contact assembly comprising: the spring sleeve is sleeved on the inner sleeve and is provided with a spring inner ring positioned in the inner sleeve and a spring outer ring positioned outside the inner sleeve, the spring inner ring and/or the spring outer ring comprise a plurality of arc-shaped strips, and the inner concave surfaces of the arc-shaped strips face the wall of the inner sleeve. The arc-shaped strip can form an elastic structure, so that the spring sleeve can more fully contact the insertion pin, the electric contact area is greatly increased, and the contact resistance is effectively reduced; meanwhile, due to the excellent structural characteristics of the arc-shaped strip, the maximum plugging and unplugging service life can be prolonged, and the application is convenient.
Description
Technical Field
The invention relates to the technical field of electric connectors, in particular to a drum-shaped electric contact assembly and a jack terminal.
Background
In the field of electrical connectors, electrical connection is achieved by inserting a pin into an electrical contact having resiliency. In order to meet application requirements, the reliability between the contact pin and the electric contact piece must be ensured, the insertion and the extraction are convenient, and the current carrying capacity and the safety and the reliability of the electric contact are determined by the elasticity of the electric contact piece. The prior elastic electric contact piece cannot maximize the electric contact area, minimize the contact resistance and maximize the plugging life due to the process and the structure.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a drum-shaped electrical contact assembly and a receptacle terminal are provided to improve electrical and mechanical properties of an electrical contact and to simplify the manufacturing process.
The technical scheme of the invention is as follows: there is provided a drum-shaped electrical contact assembly comprising: the spring sleeve is sleeved on the inner sleeve and is provided with a spring inner ring positioned in the inner sleeve and a spring outer ring positioned outside the inner sleeve, the spring inner ring and/or the spring outer ring comprise a plurality of arc-shaped strips, and the inner concave surfaces of the arc-shaped strips face the wall of the inner sleeve. The arc-shaped strip can form an elastic structure, so that the spring sleeve can more fully contact the insertion pin, the electric contact area is greatly increased, and the contact resistance is effectively reduced; meanwhile, due to the excellent structural characteristics of the arc-shaped strip, the maximum plugging and unplugging service life can be prolonged, and the application is convenient.
In the present invention, there are three types; the first type is that the inner ring of the spring is composed of a plurality of arc-shaped strips, and the outer ring of the spring is composed of a plurality of linear strips. When the drum-shaped electric contact assembly is used, the drum-shaped electric contact assembly is arranged in the shell, when the contact pin is inserted into the spring inner ring, the spring inner ring consisting of the arc-shaped strips can provide excellent elasticity, the spring inner ring can fully contact the contact pin, the electric contact area is greatly increased, and the contact resistance is effectively reduced; also, the arc-shaped strip has excellent elasticity, so that the maximum plugging and unplugging life can be provided, and the application is convenient.
The second type is that the inner ring of the spring is composed of a plurality of linear strips, and the outer ring of the spring is composed of a plurality of arc strips; similarly, when the drum-shaped electric contact assembly is applied, the drum-shaped electric contact assembly is arranged in the shell, at the moment, the elastic outer ring is clamped in the shell, the spring inner ring is further extruded due to the elasticity of the arc-shaped strip, the phase change is that the spring inner ring also has elasticity, and meanwhile, the spring inner ring is more dense; when the contact pin is inserted into the spring inner ring, the spring inner ring can fully utilize the elasticity provided by the spring outer ring, the spring inner ring can fully contact the contact pin, the electric contact area is greatly increased, and the contact resistance is effectively reduced; similarly, the arc-shaped strip of the outer ring of the spring provides elasticity for the inner ring of the spring, so that the maximum plugging service life can be provided, and the application is convenient.
The third is that the spring inner ring and the spring outer ring are both composed of a plurality of arc-shaped strips, so that the spring inner ring and the spring outer ring have the advantages of the first type and the second type at the same time, and the arc-shaped strips of the spring inner ring and the arc-shaped strips of the spring outer ring act at the same time. During application, the drum-shaped electric contact assembly is installed in the shell, when the contact pin is inserted into the spring inner ring, the spring inner ring and the spring outer ring which are composed of the arc-shaped strips can provide excellent elasticity, the spring inner ring can be more fully contacted with the contact pin due to the double elasticity, the electric contact area is greatly improved, and the contact resistance is effectively reduced; also, the arc-shaped strip has excellent elasticity, so that the maximum plugging and unplugging life can be provided, and the application is convenient.
The arc-shaped strips are parallel or obliquely arranged relative to the central axis of the inner sleeve. The inclined arc-shaped strips enable the arc-shaped strips to be more dense, so that the contact area can be further increased, and the contact resistance can be reduced.
The linear strips and/or the arc strips are arranged in a circumferential dense mode.
The spring inner ring is of a waist-drum-like shape with a small middle and large two ends, and the elasticity of the spring inner ring can be further increased by the structure, so that the spring inner ring can more fully contact the contact pins, and the contact resistance is reduced.
The spring sleeve is formed by a spiral spring wire; the section of the spiral spring wire is any one of circular, square, semicircular or special-shaped; alternatively, the spring housing is formed by nesting a plurality of the helical spring wires.
The spring housing has two free ends; the two free ends are mutually elastically abutted, or mutually welded, or a gap is reserved between the two free ends.
The inner sleeve is provided with a notch groove which penetrates through two ends of the inner sleeve in the axial direction; the spring sleeve is provided with a port communicated with the interior of the spring sleeve, and the spring sleeve is sleeved on the inner sleeve from the notch groove of the inner sleeve through the port. The gap groove can facilitate the spring sleeve to be sleeved on the inner sleeve, and further, the gap groove of the inner sleeve provided with the spring sleeve can be welded to ensure the uniform stress of the inner sleeve, so that the inner sleeve without the gap groove is formed. For an inner sleeve without a notch groove, the spring sleeve is wound on the inner sleeve for a circle, and an arc strip is manufactured at the same time. The upper end and the lower end of the inner sleeve are respectively abutted or not abutted with the upper end and the lower end of the inner side of the spring sleeve.
The spring is sleeved in the inner sleeve and is in a regular straight state or with torsion.
The present invention also provides a receptacle terminal comprising: a housing, the aforementioned drum electrical contact assembly mounted within the housing.
The shell is provided with a mounting hole. And the outer ring of the spring of the drum-shaped electric contact assembly is in press fit with the inner wall of the mounting hole.
By adopting the scheme, the invention provides the drum-shaped electric contact assembly and the jack terminal, the arc-shaped strip can form an elastic structure, so that the spring sleeve can more fully contact the jack, the electric contact area is greatly increased, and the contact resistance is effectively reduced; meanwhile, due to the excellent structural characteristics of the arc-shaped strip, the maximum plugging and unplugging service life can be prolonged, and the application is convenient.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of a drum-shaped electrical contact assembly;
fig. 2 is a schematic view of another perspective of embodiment 1 of the drum-shaped electrical contact assembly;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic structural view of a receptacle terminal composed of embodiment 1;
fig. 5 is a schematic structural view from another perspective of a receptacle terminal composed of embodiment 1;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;
fig. 7 is a schematic structural view of embodiment 2 of the drum-shaped electrical contact assembly;
fig. 8 is a schematic view of another perspective of embodiment 2 of the drum-shaped electrical contact assembly;
FIG. 9 is a cross-sectional view taken along line C-C of FIG. 8;
fig. 10 is a schematic structural view of embodiment 3 of the drum-shaped electrical contact assembly;
fig. 11 is a schematic view of another perspective of embodiment 3 of the drum-shaped electrical contact assembly;
FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11;
fig. 13 is a schematic structural view of embodiment 4 of a drum-shaped electrical contact assembly;
fig. 14 is a schematic view of another perspective of an embodiment 4 of a drum-shaped electrical contact assembly;
FIG. 15 is a cross-sectional view taken along line E-E of FIG. 14;
fig. 16 is a schematic structural view of embodiment 4 of a drum-shaped electrical contact assembly;
fig. 17 is a schematic view of another perspective of an embodiment 4 of a drum-shaped electrical contact assembly;
FIG. 18 is a cross-sectional view taken along line F-F of FIG. 17;
FIG. 19 is a schematic structural view of an inner sleeve provided with a cutaway groove;
FIG. 20 is a schematic view of a free end on the spring case;
fig. 21 is a schematic view of the structure of the spring housing of embodiment 1 of the drum-shaped electrical contact assembly.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Example 1
Referring to fig. 1-3, 19 and 21, the present embodiment provides a drum-shaped electrical contact assembly, including: the inner sleeve 10 is sleeved with the spring sleeve 20, the spring sleeve 20 is sleeved on the inner sleeve 10, a spring inner ring 21 located in the inner sleeve 10 and a spring outer ring 22 located outside the inner sleeve 10 are formed on the spring sleeve 20, the spring inner ring 21 and the spring outer ring 22 comprise a plurality of arc-shaped strips 23, and the inner concave surfaces of the arc-shaped strips 23 face the cylinder wall of the inner sleeve 10.
The spring housing 20 is formed of a helical spring wire; the cross section of the spiral spring wire is circular.
The spring housing 20 has two free ends 25; the two free ends 25 are welded to each other to form a whole. In this embodiment, the free end 25 is disposed on the arcuate strip 23.
In this embodiment, the inner sleeve 10 may be an inner sleeve 10 having a notch groove 11, and the notch groove 11 penetrates through both ends of the inner sleeve 10 in the axial direction; after the spring housing 20 is mounted, the notch groove of the inner sleeve 10 may be welded to form the inner sleeve 20 without the notch groove 11. The spring housing 20 is in a regular, flat condition before being fitted into the inner sleeve 10.
Referring to fig. 1 to 6, 19 and 20, the present embodiment further provides a receptacle terminal, including: a housing 40, the aforementioned drum-shaped electrical contact assembly, mounted within said housing 40.
The housing 40 is provided with a mounting hole 41.
The spring cup 22 of the drum-shaped electrical contact assembly is press-fit into the inner wall of the mounting hole 41.
Example 2
Referring to fig. 7-9, 19 and 20, the present embodiment provides a drum-shaped electrical contact assembly, including: the inner sleeve 10 is sleeved with the spring sleeve 20, the spring sleeve 20 is formed with a spring inner ring 21 located in the inner sleeve 10 and a spring outer ring 22 located outside the inner sleeve 10, the spring inner ring 21 includes a plurality of arc-shaped strips 23, and the inner concave surfaces of the arc-shaped strips 23 face the wall of the inner sleeve 10. The spring outer ring 22 is composed of a plurality of straight lines 24.
The spring housing 20 is formed of a helical spring wire; the cross section of the spiral spring wire is circular.
The spring housing 20 has two free ends 25; the two free ends 25 are welded to each other to form a whole.
In this embodiment, the inner sleeve 10 may be an inner sleeve 10 having a notch groove 11, and the notch groove 11 penetrates through both ends of the inner sleeve 10 in the axial direction; after the spring housing 20 is mounted, the notch groove of the inner sleeve 10 may be welded to form the inner sleeve 20 without the notch groove 11.
Example 3
Referring to fig. 10-12, 19 and 20, the present embodiment provides a drum-shaped electrical contact assembly, including: the inner sleeve 10 is sleeved with the spring sleeve 20, the spring sleeve 20 is formed with a spring inner ring 21 located in the inner sleeve 10 and a spring outer ring 22 located outside the inner sleeve 10, the spring inner ring 21 includes a plurality of arc-shaped strips 23, and the inner concave surfaces of the arc-shaped strips 23 face the wall of the inner sleeve 10. The spring outer ring 22 is composed of a plurality of straight lines 24.
The arc-shaped strips 23 are inclined with respect to the central axis of the inner sleeve 10.
The spring housing 20 is formed of a helical spring wire; the cross section of the spiral spring wire is circular.
The spring housing 20 has two free ends 25; the two free ends 25 are welded to each other to form a whole.
In this embodiment, the inner sleeve 10 may be an inner sleeve 10 having a notch groove 11, and the notch groove 11 penetrates through both ends of the inner sleeve 10 in the axial direction; after the spring housing 20 is mounted, the notch groove of the inner sleeve 10 may be welded to form the inner sleeve 20 without the notch groove 11.
Example 4
Referring to fig. 13-15, 19 and 20, the present embodiment provides a drum-shaped electrical contact assembly, including: the inner sleeve 10 is sleeved with the spring sleeve 20, the spring sleeve 20 is sleeved on the inner sleeve 10, a spring inner ring 21 located in the inner sleeve 10 and a spring outer ring 22 located outside the inner sleeve 10 are formed on the spring sleeve 20, the spring inner ring 21 and the spring outer ring 22 comprise a plurality of arc-shaped strips 23, and the inner concave surfaces of the arc-shaped strips 23 face the cylinder wall of the inner sleeve 10.
The arc-shaped strips 23 of the spring inner ring 21 are inclined with respect to the central axis of the inner sleeve 10.
The spring housing 20 is formed of a helical spring wire; the cross section of the spiral spring wire is circular.
The spring housing 20 has two free ends 25; the two free ends 25 are welded to each other to form a whole.
In this embodiment, the inner sleeve 10 may be an inner sleeve 10 having a notch groove 11, and the notch groove 11 penetrates through both ends of the inner sleeve 10 in the axial direction; after the spring housing 20 is mounted, the notch groove of the inner sleeve 10 may be welded to form the inner sleeve 20 without the notch groove 11.
Example 5
Referring to fig. 16-20, the present embodiment provides a drum-shaped electrical contact assembly, including: the inner sleeve 10 is sleeved with the spring sleeve 20, the spring sleeve 20 is sleeved on the inner sleeve 10, a spring inner ring 21 located in the inner sleeve 10 and a spring outer ring 22 located outside the inner sleeve 10 are formed on the spring sleeve 20, the spring inner ring 21 and the spring outer ring 22 comprise a plurality of arc-shaped strips 23, and the inner concave surfaces of the arc-shaped strips 23 face the cylinder wall of the inner sleeve 10.
The arc-shaped strips 23 of the inner spring ring 21 and the arc-shaped strips 23 of the outer spring ring 22 are inclined with respect to the central axis of the inner sleeve 10.
The spring housing 20 is formed of a helical spring wire; the cross section of the spiral spring wire is circular.
The spring housing 20 has two free ends 25; the two free ends 25 are welded to each other to form a whole.
In this embodiment, the inner sleeve 10 may be an inner sleeve 10 having a notch groove 11, and the notch groove 11 penetrates through both ends of the inner sleeve 10 in the axial direction; after the spring housing 20 is mounted, the notch groove of the inner sleeve 10 may be welded to form the inner sleeve 20 without the notch groove 11.
In summary, the invention provides a drum-shaped electrical contact assembly and a jack terminal, wherein the arc-shaped strip can form an elastic structure, so that the spring sleeve can more fully contact the jack, thereby greatly increasing the electrical contact area and further effectively reducing the contact resistance; meanwhile, due to the excellent structural characteristics of the arc-shaped strip, the maximum plugging and unplugging service life can be prolonged, and the application is convenient.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A drum-shaped electrical contact assembly, comprising: the spring sleeve is sleeved on the inner sleeve and is provided with a spring inner ring positioned in the inner sleeve and a spring outer ring positioned outside the inner sleeve, the spring inner ring and/or the spring outer ring comprise a plurality of arc-shaped strips, and the inner concave surfaces of the arc-shaped strips face the wall of the inner sleeve.
2. The first drum-shaped electrical contact assembly of claim 1, wherein said arcuate strips are disposed parallel or obliquely with respect to a central axis of said inner sleeve.
3. The electrical drum contact assembly of claim 1, wherein the arcuate strips are circumferentially closely spaced.
4. The drum-shaped electrical contact assembly as claimed in claim 2, wherein said spring inner race is a waistdrum-like shape having a small middle and large ends.
5. The drum-shaped electrical contact assembly of claim 1, wherein said spring housing is formed from a helical spring wire;
the section of the spiral spring wire is any one of circular, square, semicircular or special-shaped; alternatively, the spring housing is formed by nesting a plurality of the helical spring wires.
6. The drum-shaped electrical contact assembly as claimed in claim 1, wherein said spring housing has two free ends; the two free ends are mutually elastically abutted, or mutually welded, or a gap is reserved between the two free ends.
7. The drum electrical contact assembly as in claim 1 wherein said inner sleeve is provided with a notched slot through both ends of said inner sleeve in an axial direction; the spring sleeve is provided with a port communicated with the interior of the spring sleeve, and the spring sleeve is sleeved on the inner sleeve from the notch groove of the inner sleeve through the port; the upper end and the lower end of the inner sleeve are respectively abutted or not abutted with the upper end and the lower end of the inner side of the spring sleeve.
8. The electrical drum contact assembly of claim 7, wherein said spring is regularly flat or twisted before being received within said inner sleeve.
9. A receptacle terminal, comprising: the drum electrical contact assembly of any one of claims 1-8 mounted within a housing.
10. The receptacle terminal according to claim 9, wherein the housing is provided with a mounting hole; and the outer ring of the spring of the drum-shaped electric contact assembly is in press fit with the inner wall of the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110573949.0A CN113471735A (en) | 2021-05-25 | 2021-05-25 | Drum-shaped electric contact assembly and jack terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110573949.0A CN113471735A (en) | 2021-05-25 | 2021-05-25 | Drum-shaped electric contact assembly and jack terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113471735A true CN113471735A (en) | 2021-10-01 |
Family
ID=77871567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110573949.0A Pending CN113471735A (en) | 2021-05-25 | 2021-05-25 | Drum-shaped electric contact assembly and jack terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113471735A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4227007A1 (en) * | 1992-08-14 | 1994-02-17 | Dunkel Otto Gmbh | Annular contact socket outlet - has inwardly curved spring region formed by spring contacts held inside support sleeve |
| US20110124245A1 (en) * | 2008-04-14 | 2011-05-26 | Mitsubishi Electric Corporation | Contact |
| WO2011072511A1 (en) * | 2009-12-18 | 2011-06-23 | 陕西维柯瑞电气有限责任公司 | Spring contact finger for electric conduction and connector including same |
| CN202513328U (en) * | 2012-02-29 | 2012-10-31 | 深圳市簧中簧电子有限公司 | Socket conductor and socket system |
| 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 |
| CN106785565A (en) * | 2016-12-21 | 2017-05-31 | 苏州华旃航天电器有限公司 | Electric connector with contact pin contacting piece |
| CN107069269A (en) * | 2016-12-21 | 2017-08-18 | 苏州华旃航天电器有限公司 | A kind of electric connector with contact pin contacting piece |
| US20180138623A1 (en) * | 2016-11-16 | 2018-05-17 | Jibing FENG | Cage-type hyperbolic spring structure and socket |
-
2021
- 2021-05-25 CN CN202110573949.0A patent/CN113471735A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4227007A1 (en) * | 1992-08-14 | 1994-02-17 | Dunkel Otto Gmbh | Annular contact socket outlet - has inwardly curved spring region formed by spring contacts held inside support sleeve |
| US20110124245A1 (en) * | 2008-04-14 | 2011-05-26 | Mitsubishi Electric Corporation | Contact |
| WO2011072511A1 (en) * | 2009-12-18 | 2011-06-23 | 陕西维柯瑞电气有限责任公司 | Spring contact finger for electric conduction and connector including same |
| 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 |
| CN202513328U (en) * | 2012-02-29 | 2012-10-31 | 深圳市簧中簧电子有限公司 | Socket conductor and socket system |
| US20180138623A1 (en) * | 2016-11-16 | 2018-05-17 | Jibing FENG | Cage-type hyperbolic spring structure and socket |
| CN106785565A (en) * | 2016-12-21 | 2017-05-31 | 苏州华旃航天电器有限公司 | Electric connector with contact pin contacting piece |
| CN107069269A (en) * | 2016-12-21 | 2017-08-18 | 苏州华旃航天电器有限公司 | A kind of electric connector with contact pin contacting piece |
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