CN114725713B - Jack contact and use connector of the jack contact - Google Patents
Jack contact and use connector of the jack contact Download PDFInfo
- Publication number
- CN114725713B CN114725713B CN202210321402.6A CN202210321402A CN114725713B CN 114725713 B CN114725713 B CN 114725713B CN 202210321402 A CN202210321402 A CN 202210321402A CN 114725713 B CN114725713 B CN 114725713B
- Authority
- CN
- China
- Prior art keywords
- sheath
- jack
- contact
- connector
- jack body
- Prior art date
- 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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Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 abstract description 6
- 230000037431 insertion Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000011799 hole material Substances 0.000 description 23
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
-
- 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
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention relates to a jack contact and a connector using the jack contact, wherein the jack contact comprises a jack body (1), the front end of the jack body (1) is divided into at least two elastic cantilevers (3) which are used for being in contact fit with an adaptive contact pin by an axial slot (2), the at least two elastic cantilevers (3) are uniformly distributed along the circumferential direction and enclose an opening hole (4), the front end of the jack body (1) is provided with a sheath (6), the sheath (6) is sleeved outside the opening hole (4), and the front end of the elastic cantilever (3) is inclined towards the inside of the opening hole (4) so that a gap (7) for radially outwards deforming the elastic cantilever (3) is formed between the inner wall of the sheath (6) and the outer wall of the opening hole (4). According to the invention, the maximum deformation of the elastic cantilever is limited by the sheath, so that the maximum deformation does not exceed the deformation limit, the open hole cannot be further expanded and deformed radially outwards, the open hole cannot reach yield stress, the oblique insertion requirement is met, and the service life is prolonged.
Description
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a jack contact and a connector using the jack contact.
Background
In the fields of UPS power supply, photovoltaic test equipment, vehicle-mounted charging pile charging module, bicycle power replacement and the like, the requirements for connector products with long service life, high current, low cost and high reliability are increasing, the current is realized in a limited space, red copper is adopted as a jack of an elastic cantilever structure, and the connector products mainly comprise a stainless steel sheath jack structure, a spring fastening jack structure and a steel ladle copper structure; the ladle copper structure is disclosed in patent CN106329188B, and provides forward force through an outer elastic valve to ensure reliable contact. The stainless steel sheath jack structure is shown in fig. 1, the stainless steel sheath 02 with an axial slot is added outside the red copper open hole body 01, when a contact pin is inserted, the stainless steel sheath is spread, and the stainless steel sheath 02 provides forward force for the jack. As shown in FIG. 2, the jack structure of the spring sheath is characterized in that a spring 002 is additionally arranged outside a red copper opening hole 001, when a contact pin is inserted, the spring 002 is spread, and the spring contracts inwards due to self elasticity, so that a forward force is provided for the jack. The reason for manufacturing the contact by using the red copper material is that the red copper has the highest conductivity in all copper materials, the same structure can bear larger current, but the red copper material has low yield strength of only more than two hundred MPa, and if the red copper material is used as an elastic contact, the red copper material is easy to yield, so that the forward force of a contact point is insufficient, and the risks of poor contact and product ablation are generated.
The basic principle of the prior jack contact structure is to allow the inner spring arm to yield, and the forward force contacting with the adapting contact is provided by the reaction force after other structural deformation, and the structure has the following defects: 1. when the cable pulls the contact, the deformation in a certain direction is overlarge due to a certain risk when the cable is obliquely inserted, and the deformation exceeds the allowable stress of materials, so that the quality risks of no rebound, reduced insertion and extraction force and the like are caused. 2. The mechanical life is low; typically less than 200 times. 3. The product has a complex structure, needs to be assembled, and checks the plugging force for many times. 4. The quality uniformity is poor, and the opening hole closes up the management and control plug power, but part length tolerance is great to the degree of closing up influence, and is great to elastomeric element and jack body size cooperation influence.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a two-body type jack contact piece with the advantages of low cost, long service life, abuse resistance, high current and the like and a connector using the jack contact piece.
The invention aims at solving the technical problems by adopting the following technical scheme. According to the jack contact element provided by the invention, the jack contact element comprises a jack body, the front end of the jack body is divided into at least two elastic cantilevers which are used for being in contact fit with an adaptive contact pin by virtue of axial slotting, the at least two elastic cantilevers are uniformly distributed along the circumferential direction and enclose an opening hole, the front end of the jack body is provided with a sheath, the sheath is sleeved outside the opening hole, the front end of the elastic cantilever inclines towards the inside of the opening hole, a gap is formed between the inner wall of the sheath and the outer wall of the opening hole, the gap is gradually enlarged from back to front and is used for radially outwards deforming when the elastic cantilever is subjected to the insertion force of the adaptive contact pin.
Further, the outside of the rear end of the jack body is provided with a mounting step, and the mounting step is used for being in limit fit with the rear end of the sheath, so that the sheath is positioned in the backward direction.
Further, the length of the straight line segment on the sheath, which is in sliding fit with the jack body, is set to be L1, and the length of the elastic cantilever is set to be L2, so that the ratio of L1 to L2 is between 1:2 and 1:5.
Further, when the rear end of the sheath is abutted against the mounting step, the front end of the elastic cantilever does not protrude out of the front end of the sheath.
Further, the jack body is made of red copper material; the sheath is made of stainless steel material.
The connector comprises a connector shell and a jack contact piece arranged in the connector shell, wherein the jack contact piece comprises a jack body, the front end of the jack body is divided into at least two elastic cantilevers which are used for being in contact with an adaptive contact pin through axial slotting, the at least two elastic cantilevers are uniformly distributed along the circumferential direction and enclose an opening hole, the front end of the jack body is provided with a sheath, the sheath is sleeved outside the opening hole, and a gap for the elastic cantilevers to deform outwards is reserved between the inner wall of the sheath and the outer wall of the opening hole.
Further, the outside of the rear end of the jack body is provided with a mounting step which is used for limiting and matching with the rear end of the sheath.
Further, the length of the straight line segment on the sheath, which is in sliding fit with the jack body, is set to be L1, and the length of the elastic cantilever is set to be L2, so that the ratio of L1 to L2 is between 1:2 and 1:5.
Further, when the rear end of the sheath is abutted against the mounting step, the front end of the elastic cantilever does not protrude out of the front end of the sheath.
Further, the jack body is made of red copper material; the sheath is made of stainless steel material.
By means of the technical scheme, the invention has the beneficial effects that:
1. the sheath is formed by directly cutting the profile, so that the processing cost is low, the assembly is not needed, and the assembly cost is omitted.
2. Under the condition that the forward force meets the contact resistance requirement, the jack contact element has soft plugging force and can achieve ten thousands of product lives.
3. The sheath structure of the invention restricts the maximum deformation of the open hole, so that the open hole material can not reach yield stress, and the oblique insertion requirement is met.
4. The invention adopts the structure that the red copper pin jacks are in direct contact, and in the structure that all the pin jacks are matched, the contact resistance is the lowest, and the current capacity is the strongest.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention given in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a prior art stainless steel sheath receptacle structure.
Fig. 2 is a schematic diagram of a prior art spring boot jack configuration.
Fig. 3 is a schematic view of the structure of the jack contact before closing in the present invention.
Fig. 4 is a cross-sectional view of the invention prior to closing in the receptacle contact.
Fig. 5 is a schematic view of the structure of the jack contact after closing in the present invention.
Fig. 6 is a perspective view of the jack body after the jack contact is closed in accordance with the present invention.
Fig. 7 is a side view of the receptacle body after the receptacle contacts are closed in accordance with the present invention.
Fig. 8 is a cross-sectional view of the present invention after the receptacle contact has been closed.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and the preferred embodiment.
Embodiments of the connector are shown in fig. 3to 8: the connector comprises a connector shell (not shown in the figure) and a jack contact piece arranged in the connector shell, wherein the jack contact piece comprises a jack body 1 made of red copper material, the opposite inserting end of the jack contact piece and an adapter pin is used as the front end of the jack contact piece, the front end of the jack body 1 is divided into a plurality of elastic cantilevers 3 used for being in contact fit with the adapter pin by an axial slot 2, and the plurality of elastic cantilevers 3 are uniformly distributed along the circumferential direction and are surrounded into an opening hole 4 for the insertion of the adapter pin; in this embodiment, four elastic cantilevers are uniformly distributed in the circumferential direction, and two or more elastic cantilevers may be provided in other embodiments. The rear end outside of jack body is equipped with installation step 5, and the cover is equipped with sheath 6 in the place ahead cover of installation step 5 on the jack body, and the sheath is the stainless steel sheath, and the rear end of sheath 6 and installation step 5 block the cooperation in the backward direction, and when jack contact piece was installed in the connector, the front end of sheath 6 passed through step location cooperation with the connector inner insulator to carry out the sheath spacing. Because the sheath does not need to be strongly assembled or pressed with the jack body, the sheath can be respectively assembled to a user, and the sheath can be placed outside the opening hole during installation and use. After the sheath is installed in place, the elastic cantilever is completely covered, i.e. the front end of the elastic cantilever does not protrude out of the front end of the sheath, or the front end of the elastic cantilever is flush with the front end of the sheath. In combination with fig. 4, before the opening hole is closed, the inner wall of the sheath is attached to the outer wall of the opening hole, after the opening hole is closed, each elastic cantilever is inclined towards the inner direction of the opening hole, so that a gap 7 exists between the opening hole and the sheath, and the gap is gradually increased from back to front. When the elastic cantilever sheath is used, the adaptive contact pin is inserted into the jack contact piece, and the adaptive contact pin expands the opening hole until each elastic cantilever is attached to the inner wall of the sheath; however, due to the constraint of the sheath, the open hole cannot be further expanded and deformed radially outwards, and the sheath constrains the maximum deformation of the open hole, so that the open hole material cannot reach the yield stress, and the oblique insertion requirement is met.
In this embodiment, the length of the straight line segment on the sheath in sliding fit or clearance fit with the jack body is set to L1, and the length of the elastic cantilever is set to L2, so that the ratio of L1 to L2 is between 1:2 and 1:5, thereby providing a proper space for deformation of the elastic cantilever and maintaining a stable contact force with the adapter pin; the straight line section is a part in sliding fit with the gap guide of the sheath and is used for limiting radial movement of the sheath.
In this embodiment, the sheath and the jack body are two-piece, and in other embodiments, if the sheath length is simply changed or the sheath fixing mode is increased, for example, the sheath is fixed on the jack body, the deformation essence of the sheath restraining jack is not changed, and the sheath is within the protection range. In addition, the red copper material is replaced by beryllium bronze, tin bronze, high-conductivity copper and the like, the through-flow capacity is sacrificed, but the structure essence is not changed, and the red copper material is within the protection scope of the invention. In addition, in this embodiment, the rear end of the jack body is used as the terminal 8 connected to the wire, but in other embodiments, the replaceable tail is used as a wire, for example, a connection form such as welding, locking screw, etc. is within the scope of the present invention.
An embodiment of a receptacle contact is shown in fig. 3-8: the structure and principle of the receptacle contact are the same as those of the receptacle contact in the above-described connector embodiment, and will not be described in detail.
Claims (5)
1. The connector comprises a connector shell and a jack contact piece arranged in the connector shell, wherein the jack contact piece comprises a jack body (1), the front end of the jack body (1) is divided into at least two elastic cantilevers (3) which are used for being in contact fit with an adapter pin by an axial slot (2), and the at least two elastic cantilevers (3) are uniformly distributed along the circumferential direction and form an opening hole (4), and the connector is characterized in that: the rear end outside of jack body (1) is equipped with installation step (5), and the rear end and the spacing cooperation of installation step of sheath, the front end of sheath and the insulator in the connector housing pass through step location cooperation so that sheath (6) cover locate opening (4) outside, and the front end of elasticity cantilever (3) is towards opening (4) inside slope to form between sheath (6) inner wall and opening (4) outer wall and supply elasticity cantilever (3) radial outside deformation's clearance (7).
2. The connector according to claim 1, wherein: the length of the straight line segment on the sheath, which is in sliding fit with the jack body, is set to be L1, and the length of the elastic cantilever is set to be L2, so that the ratio of L1 to L2 is between 1:2 and 1:5.
3. The connector according to claim 1, wherein: when the rear end of the sheath (6) is abutted with the mounting step (5), the front end of the elastic cantilever (3) does not protrude out of the front end of the sheath (6).
4. The connector according to claim 1, wherein: the jack body (1) is made of red copper material.
5. The connector according to claim 1, wherein: the sheath (6) is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210321402.6A CN114725713B (en) | 2022-03-30 | 2022-03-30 | Jack contact and use connector of the jack contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210321402.6A CN114725713B (en) | 2022-03-30 | 2022-03-30 | Jack contact and use connector of the jack contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114725713A CN114725713A (en) | 2022-07-08 |
| CN114725713B true CN114725713B (en) | 2024-10-18 |
Family
ID=82240225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210321402.6A Active CN114725713B (en) | 2022-03-30 | 2022-03-30 | Jack contact and use connector of the jack contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114725713B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3003135A (en) * | 1956-12-28 | 1961-10-03 | Amphenol Borg Electronics Corp | Electrical contacts |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120556A (en) * | 1976-03-01 | 1978-10-17 | The Bendix Corporation | Electrical contact assembly |
| US4461531A (en) * | 1982-09-22 | 1984-07-24 | Bendix/Allied Corporation | Socket contact for electrical connector and method of manufacture |
| US6997750B2 (en) * | 2003-07-23 | 2006-02-14 | Fci Americas Technology, Inc. | Electrical connector contact |
| DE102005063286A1 (en) * | 2005-12-30 | 2007-07-05 | Würth Elektronik GmbH & Co. KG | Contact socket for a pin |
| CN201623304U (en) * | 2010-03-23 | 2010-11-03 | 四川永贵科技有限公司 | Multiple-claw flexible positioning tooth sleeve |
| CN202268525U (en) * | 2011-07-19 | 2012-06-06 | 中航光电科技股份有限公司 | Sealed connector |
| CN105514729A (en) * | 2016-01-14 | 2016-04-20 | 泰兴市航联电连接器有限公司 | High-current contact part with composite structure |
-
2022
- 2022-03-30 CN CN202210321402.6A patent/CN114725713B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3003135A (en) * | 1956-12-28 | 1961-10-03 | Amphenol Borg Electronics Corp | Electrical contacts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114725713A (en) | 2022-07-08 |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20221128 Address after: 511400 101, No. 45-3, Gongye Road, Hualong Town, Panyu District, Guangzhou, Guangdong Applicant after: AVIC Optoelectronics (Guangdong) Co.,Ltd. Address before: 471003 No.10 Zhoushan Road, high tech Zone, Luoyang City, Henan Province Applicant before: AVIC JONHON OPTRONIC TECHNOLOGY Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |