CN110797697A - High-current crown spring jack - Google Patents
High-current crown spring jack Download PDFInfo
- Publication number
- CN110797697A CN110797697A CN201911164321.4A CN201911164321A CN110797697A CN 110797697 A CN110797697 A CN 110797697A CN 201911164321 A CN201911164321 A CN 201911164321A CN 110797697 A CN110797697 A CN 110797697A
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- Prior art keywords
- crown spring
- end ring
- rear end
- spring jack
- hole
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- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 10
- 244000273256 Phragmites communis Species 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000003734 kidney Anatomy 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 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
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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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
- H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
-
- 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
-
- 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
- H01R13/627—Snap or like fastening
-
- 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
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- Measuring Leads Or Probes (AREA)
Abstract
The invention discloses a high-current crown spring jack which sequentially comprises an outer cylinder, an inner cylinder and a crown spring from outside to inside, wherein the crown spring comprises a front end ring, a rear end ring and reeds connected between the front end ring and the rear end ring, the front end ring and the rear end ring are provided with fractures which enable the front end ring and the rear end ring to be disconnected, the reeds are arranged at intervals along the circumferential direction of the front end ring, all the reeds are inwards concave towards the central line of the outer cylinder to form a waist-shaped structure, the inner cylinder is tightly attached to the crown spring, the front end ring and the rear end ring are tightly attached to the inner side wall of the outer cylinder, and the. Compared with the prior art, after the contact pin comes in, the inner cylinder tightly embraces the crown spring, and the crown spring tightly embraces the contact pin, so that the holding force to the contact pin is enhanced, the contact pin is not easy to loosen and fall off, and the contact pin vibration damping device is particularly suitable for the vibration occasions; in addition, with the help of the trend of the inner cylinder, the plugging and unplugging service life of the high-current crown spring jack is greatly prolonged.
Description
Technical Field
The invention relates to the field of electric connectors, in particular to a high-current crown spring jack.
Background
Along with the development of science and technology and the progress of humanity, the application of the electric connector is increasing day by day, and then the performance and technical content requirements of the electric connector are higher and higher, besides the electric connector meets the general performance requirements, the electric connector has the particularly important requirements that the electric connector has good contact, reliable operation and convenient maintenance, and the normal operation of a circuit is directly influenced by the reliability of the operation. A crown spring jack is a jack assembly used on the production of electrical connectors (i.e., connectors).
The existing crown spring jack comprises a crown spring, an outer cylinder and an inner cylinder positioned between the crown spring and the outer cylinder, wherein the crown spring is positioned in the inner cylinder, the front end of the crown spring is provided with a flanging clamped at the front end of the inner cylinder, and a gap is formed between the inner cylinder and a reed of the crown spring. The crown spring jack has the advantages of convenience in assembly of the crown spring and small insertion and extraction force. However, the clearance between the inner barrel and the crown spring causes that the holding force is only provided by the crown spring after the contact pin is inserted, so the holding force of the crown spring jack is small, and the contact pin is easy to loosen and generate arc drawing particularly in the oscillating occasion. In addition, the crown spring jack also has the defect of short plugging service life.
Therefore, a large-current crown spring jack with large holding force and long plugging life is urgently needed to overcome the defects.
Disclosure of Invention
The invention aims to provide a high-current crown spring jack which is high in holding force and long in plugging and unplugging life.
In order to achieve the purpose, the high-current crown spring jack sequentially comprises an outer cylinder, an inner cylinder and a crown spring from outside to inside, the crown spring comprises a front end ring, a rear end ring and spring leaves connected between the front end ring and the rear end ring, the front end ring and the rear end ring are respectively provided with fractures enabling the heads and the tails of the front end ring and the rear end ring to be disconnected, the spring leaves are arranged at intervals along the circumferential direction of the front end ring, all the spring leaves are concave towards the central line of the outer cylinder to enclose a waist-shaped structure, the inner cylinder is tightly attached to the crown spring, the front end ring and the rear end ring are tightly attached to the inner side wall of the outer cylinder, and the inner cylinder has a tendency of tightly holding the crown.
Preferably, the inner cylinder is provided with a break opening which enables the head and the tail of the inner cylinder to be in break arrangement.
Preferably, the fracture and the fracture opening are arranged in a staggered manner.
Preferably, the front end and the rear end of the inner cylinder are annular structures with flush outer side surfaces.
Preferably, the inner cylinder is of a kidney-shaped cylinder structure.
Preferably, the crown spring is an elastic structure with high conductivity, and the inner cylinder is an elastic structure with high yield strength.
Preferably, the front end ring comprises a first flanging structure which is turned outwards, the rear end ring comprises a second flanging structure which is turned outwards, the first flanging structure is clamped at the front end of the inner cylinder and is in contact with the inner side wall of the outer cylinder, and the second flanging structure is clamped at the rear end of the inner cylinder and is in contact with the inner side wall of the outer cylinder.
Preferably, the first flanging structure is provided with a plurality of first openings which are arranged backwards, and the first openings are arranged at intervals along the circumferential direction of the front end ring; the second flanging structure is provided with a plurality of second openings which are arranged forwards, and the second openings are arranged at intervals along the circumferential direction of the rear end ring.
Preferably, the outer cylinder comprises an outer cylinder main body and mounting holes respectively penetrating through the front end face and the rear end face of the outer cylinder main body, and the two mounting holes are not communicated with each other.
Preferably, the mounting hole includes a first hole and a second hole, the diameter of the first hole is larger than that of the second hole, a step structure is formed at the joint of the first hole and the second hole, and the inner cylinder and the crown spring are arranged in the first hole and supported on the step structure.
Compared with the prior art, the high-current crown spring jack is tightly attached to the crown spring by virtue of the inner barrel, the inner barrel has a tendency of tightly holding the crown spring, so that when the contact pin is inserted into the crown spring, the crown spring is stretched, the contact pin is tightly held due to the fact that the crown spring has a recovered elastic tendency, and the inner barrel has a tendency of tightly holding the crown spring, so that when the contact pin is inserted, the inner barrel and the crown spring deform simultaneously, the contact pin tightly holds the crown spring after coming in, and the crown spring tightly holds the contact pin, so that the holding force on the contact pin is enhanced, the contact pin is not easy to loosen and fall off, and the high-current crown spring jack is particularly suitable for an oscillating occasion; in addition, with the help of the trend of the inner cylinder, the plugging and unplugging service life of the high-current crown spring jack is greatly prolonged. In addition, the crown spring is tightly attached to the inner side wall of the outer cylinder through the front end ring and the rear end ring, so that the crown spring is conducted with the outer cylinder.
Drawings
Fig. 1 is a schematic top view of the high current crown spring jack of the present invention.
Fig. 2 is a schematic sectional view of fig. 1 taken along section line a-a.
FIG. 3 is a schematic diagram of the fitting structure of the inner cylinder and the crown spring of the high-current crown spring jack according to the present invention.
FIG. 4 is a schematic perspective view of the inner barrel of the large current crown spring jack according to the present invention.
Fig. 5 is a schematic perspective view of a crown spring of the high-current crown spring jack according to the present invention.
Detailed Description
In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.
Referring to fig. 1 to 4, the high current crown spring jack 100 of the present invention includes an outer cylinder 1, an inner cylinder 2 and a crown spring 3 in sequence from outside to inside. The crown spring 3 comprises a front end ring 31, a rear end ring 32 and a reed 33 connected between the front end ring 31 and the rear end ring 32, the front end ring 31 and the rear end ring 32 are respectively provided with fractures 311 and 321 which are arranged in a way that the front end and the rear end of the front end ring 31 are disconnected, and the crown spring 3 is easy to deform by means of the fractures 311 and 321, so that the crown spring is convenient to install in the inner cylinder 2. The fracture 311 of the front end ring 31 is arranged opposite to the fracture 321 of the rear end ring 32, which contributes to deformation stability and is more favorable for installation. The reeds 33 are arranged at intervals along the circumferential direction of the front end ring 31, and all the reeds 33 are concave towards the center line of the outer cylinder 1 to enclose a kidney-shaped structure. By means of the crown spring 3 with the waist-shaped structure, the insertion of a contact pin into the high-current crown spring jack 100 is facilitated, and then the contact pin is quickly contacted with the crown spring 3, so that the connection is quickly conducted. The front end ring 31 and the rear end ring 32 are closely attached to the inner wall of the outer tube 1, so that the crown spring 3 is conducted with the outer tube 1. The inner cylinder 2 is tightly attached to the crown spring 3, and the inner cylinder 2 always has the tendency of tightly holding the crown spring 3. With the help of the trend, the inner cylinder 2 stretches along with the stretching of the crown spring 3, when the contact pin is inserted into the high-current crown spring jack 100, the crown spring 3 is stretched by the contact pin, so that the inner cylinder 2 is driven to be stretched together, and because the inner cylinder 2 tightly holds the crown spring 3 and the crown spring 3 tightly holds the contact pin, the holding force on the contact pin is greatly increased, so that the contact pin is prevented from loosening in the crown spring 3, the generation of arc discharge is avoided, and the high-current crown spring jack is particularly suitable for vibration occasions. Meanwhile, the increase of the holding force is beneficial to improving the plugging service life. Specifically, the crown spring 3 is an elastic structure with high conductivity, and by virtue of the elastic structure of the crown spring 3, when the crown spring 3 is expanded, the crown spring 3 has a tendency of tightly holding the contact pin so as to tightly hold the contact pin, and meanwhile, by virtue of the crown spring 3 being a structure with high conductivity, the conduction rate with the contact pin and the outer barrel 1 is high; preferably, the crown spring 3 has a structure with low yield strength, which is beneficial to deformation processing and manufacturing. The inner cylinder 2 is an elastic structure with high yield strength, and the plastic deformation is favorably reduced by means of the structure of the inner cylinder 2, so that the holding force is improved, and the plugging and unplugging service life is prolonged. For example, the material of the crown spring is copper alloy, and the material of the inner cylinder is stainless steel, but not limited thereto.
More specifically, the following:
referring to fig. 4, the inner cylinder 2 is a kidney-shaped cylinder structure, so as to achieve the effect of tightly attaching the crown spring 3, and when the crown spring 3 is spread, the inner cylinder 2 is also quickly spread and has a tendency of tightly holding the crown spring 3. The inner cylinder 2 is provided with a break opening 21 which is arranged by breaking the head and the tail of the inner cylinder 2, and the inner cylinder 2 can be conveniently installed in the outer cylinder 1 by virtue of the elastic structure of the break opening 21 and the inner cylinder 2 and is abutted against the outer cylinder 1 after the elasticity is recovered. Therefore, the high-current crown spring jack 100 of the invention also has the advantage of quick assembly. Specifically, the fractures 311 and 321 and the fracture opening 21 are disposed in a staggered manner, and of course, in other embodiments, the fractures 311 and 321 and the fracture opening 21 are disposed opposite to each other, but not limited thereto.
Referring to fig. 5, the front end ring 31 includes an everted first flange structure 312, the rear end ring 32 includes an everted second flange structure 322, the first flange structure 312 is engaged with the front end of the inner cylinder 2 and contacts with the inner sidewall of the outer cylinder 1, and the second flange structure 322 is engaged with the rear end of the inner cylinder 2 and contacts with the inner sidewall of the outer cylinder 1. Preferably, the front end and the rear end of the inner cylinder 2 are of annular structures with flush outer side surfaces, so that the crown spring 3 is conveniently clamped with the inner cylinder 2. The first flanging structure 312 is provided with a plurality of rearward first openings 3121, and the first openings 3121 are spaced apart along the circumferential direction of the front end ring 31; the second flange structure 322 defines a plurality of second openings 3221 disposed forward, and the second openings 3221 are disposed along the circumference of the rear end ring 32 at intervals. First opening 3121 and second opening 3221 reduce the possibility of crown spring 3 being easily broken during assembly.
Referring to fig. 2, the outer tube 1 includes an outer tube body 11, and mounting holes 12 respectively penetrating through a front end surface and a rear end surface of the outer tube body 11, and the two mounting holes 12 are not communicated with each other. One of the mounting holes 12 includes a first hole 121 and a second hole 122, the diameter of the first hole 121 is larger than that of the second hole 122, a step structure 123 is formed at the joint of the first hole 121 and the second hole 122, and the inner cylinder 2 and the crown spring 3 are disposed in the first hole 121 and supported on the step structure 123. The other mounting hole 12 is a straight hole, so the invention is not limited thereto.
The working principle of the high-current crown spring jack 100 of the present invention is explained with reference to the accompanying drawings: when the contact pin is inserted into the high-current crown spring jack 100, the contact pin props up the crown spring 3, the crown spring 3 has the tendency of elastic recovery, and the inner cylinder 2 has the tendency of tightly holding the crown spring 3, so that the contact pin is tightly held under the two tendencies, thereby greatly increasing the holding force and simultaneously improving the insertion and extraction service life. When the pin is pulled out of the high current crown spring jack 100 of the present invention, both the crown spring 3 and the inner barrel 2 are restored at the same time.
It is understood that the pins are well known to those skilled in the art and therefore will not be described in detail herein. It is noted that the crown spring 3 is electrically connected to the outer tube 1.
Compared with the prior art, the high-current crown spring jack 100 is tightly attached to the crown spring 3 by virtue of the inner barrel 2, and the inner barrel 2 has a tendency of tightly holding the crown spring 3, so that when the contact pin is inserted into the crown spring 3, the crown spring 3 is stretched, the contact pin is tightly held due to the fact that the crown spring 3 has a recovered elastic tendency, and the inner barrel 2 has a tendency of tightly holding the crown spring 3, so that when the contact pin is inserted, the inner barrel 2 and the crown spring 3 deform simultaneously, after the contact pin comes in, the inner barrel 2 tightly holds the crown spring 3, and the crown spring 3 tightly holds the contact pin, so that the tightly holding force on the contact pin is enhanced, the contact pin is not easy to loosen, and the high-current crown spring jack is particularly suitable for; in addition, with this trend of the inner barrel 2, the plugging life of the large-current crown spring jack 100 of the present invention is greatly increased. The crown spring 3 is brought into conduction with the outer tube 1 by the front end ring 31 and the rear end ring 32 being in close contact with the inner wall of the outer tube 1.
The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.
Claims (10)
1. A large-current crown spring jack sequentially comprises an outer cylinder, an inner cylinder and a crown spring from outside to inside, wherein the crown spring comprises a front end ring, a rear end ring and reeds connected between the front end ring and the rear end ring, the front end ring and the rear end ring are respectively provided with fractures enabling the front end ring and the rear end ring to be disconnected, the reeds are arranged at intervals along the circumferential direction of the front end ring, and all the reeds are recessed towards the center line of the outer cylinder to enclose a waist-shaped structure.
2. The high current crown spring jack according to claim 1, wherein the inner barrel is provided with a break opening that opens the inner barrel end to end.
3. The high current crown spring jack of claim 2, wherein said discontinuity is offset from said discontinuity opening.
4. The high current crown spring jack of claim 1, wherein the front end and the rear end of the inner barrel are of a ring-shaped structure with flush outer side surfaces.
5. The high current crown spring jack of claim 1, wherein said inner barrel is a kidney barrel configuration.
6. The high current crown spring jack of claim 1, wherein said crown spring is an elastic structure having high electrical conductivity and said inner barrel is an elastic structure having high yield strength.
7. The high current crown spring jack of claim 1, wherein said front end collar includes a first flanged structure that is flanged and said rear end collar includes a second flanged structure that is flanged, said first flanged structure being snapped into contact with the front end of said inner barrel and with the inside wall of said outer barrel, said second flanged structure being snapped into contact with the rear end of said inner barrel and with the inside wall of said outer barrel.
8. The high-current crown spring jack according to claim 7, wherein the first flanging structure is provided with a plurality of first openings which are arranged backwards, and the first openings are arranged at intervals along the circumferential direction of the front end ring; the second flanging structure is provided with a plurality of second openings which are arranged forwards, and the second openings are arranged at intervals along the circumferential direction of the rear end ring.
9. The high current crown spring jack according to claim 1, wherein said outer cylinder comprises an outer cylinder body, mounting holes respectively penetrating a front end surface and a rear end surface of said outer cylinder body, said mounting holes not communicating with each other.
10. The high current crown spring jack of claim 9, wherein said mounting hole comprises a first hole and a second hole, said first hole having a larger diameter than said second hole, an intersection of said first hole and said second hole forming a stepped structure, said inner barrel and said crown spring being embedded within said first hole and carried on said stepped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911164321.4A CN110797697A (en) | 2019-11-22 | 2019-11-22 | High-current crown spring jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911164321.4A CN110797697A (en) | 2019-11-22 | 2019-11-22 | High-current crown spring jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110797697A true CN110797697A (en) | 2020-02-14 |
Family
ID=69446024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911164321.4A Pending CN110797697A (en) | 2019-11-22 | 2019-11-22 | High-current crown spring jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110797697A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201859971U (en) * | 2010-10-19 | 2011-06-08 | 中航光电科技股份有限公司 | Crown spring cage type contact pin and plughole component and plughole of same |
| CN106981756A (en) * | 2017-03-27 | 2017-07-25 | 中航光电科技股份有限公司 | A kind of electric connector and its hat spring socket |
| CN211045804U (en) * | 2019-11-22 | 2020-07-17 | 东莞中探探针有限公司 | High-current crown spring jack |
-
2019
- 2019-11-22 CN CN201911164321.4A patent/CN110797697A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201859971U (en) * | 2010-10-19 | 2011-06-08 | 中航光电科技股份有限公司 | Crown spring cage type contact pin and plughole component and plughole of same |
| CN106981756A (en) * | 2017-03-27 | 2017-07-25 | 中航光电科技股份有限公司 | A kind of electric connector and its hat spring socket |
| CN211045804U (en) * | 2019-11-22 | 2020-07-17 | 东莞中探探针有限公司 | High-current crown spring jack |
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