CN1536717A - Integrated hyperbolical spring-bearing receptacle contact component and its technological process - Google Patents
Integrated hyperbolical spring-bearing receptacle contact component and its technological process Download PDFInfo
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- CN1536717A CN1536717A CNA031596525A CN03159652A CN1536717A CN 1536717 A CN1536717 A CN 1536717A CN A031596525 A CNA031596525 A CN A031596525A CN 03159652 A CN03159652 A CN 03159652A CN 1536717 A CN1536717 A CN 1536717A
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Abstract
The invention discloses a kind of integral hyperbolic spring socket contact component, which belongs to electric connector contact component. Comparing with the current technology, the invention has following merit and active effect: it uses single leave rotary hyperbolic contact mode, it contacts with the pins with multiaspect envelope, the dynamic contact resistance is stable, it has characters of impact resisting, anti-vibration, bearing large current, soft plug, and contact resistance is small. Because the two ends of the entire metal piece are connected together in parallel and bear the current, thus the current bearing ability is upgraded greatly, and it can carries on hot plug. Because the component is only made up of a layer of thin wall bushing, it is simple, the volume of contact component can be reduced, the contact is more reliable, reduces the consumption of copper.
Description
Affiliated technical field
The invention belongs to electric connector contact, particularly a kind of integral type hyperbolic is worn the spring socket contact.
Background technology
Present existing reliability, stability electric connector contact preferably have the one sheet hyperboloid wire spring socket, it is to utilize one group of elastic metallic yarn that is arranged in the one sheet hyperboloid structure equably on the contact pin surface of envelope in inserting it, belongs to multi-thread envelope contact.Adopt the jack contact of this line spring structure to form by interior cover, overcoat, back cover, elastic metallic yarn four parts, the coaxial one group of elastic metallic yarn that is arranged in one sheet hyperboloid that is equipped with in its inner sleeve, stretch out outside the two-port of inner sleeve at the two ends of each one metal wire, and along the inner sleeve external cylindrical surface to the back bending song, bend is clamped with the inner sleeve external cylindrical surface by the inner cylinder face of protheca and back cover, and two parts are overlapped through the crimping formation overcoat that fuses in protheca, back.
There is following deficiency in this line spring structure: big, the anti-pulling force of (1) socketing method contact resistance is poor, and the front and back as easy as rolling off a log pulling force that is subjected to of cover breaks away from from pressure point, causes to be connected fault and accident; (2) complex structure, component parts is more, and volume can't further dwindle, and is unfavorable for to miniaturization, densification development; (3) processing technology complexity, the required precision height causes product percent of pass low, and cost improves; (4) elastic metallic yarn can not be very thick in the space that limits, and makes every rhizoid be difficult to bear the impact of big electric current; (5) the fracture of wire phenomenon in the use can't solve.
Also has a kind of string of a hat jack contact that adopts the crown tape ring structure in addition.Present existing crown tape ring is that the elastic sheet metal punching press is divided into paliform continuous by some two ends and that the bonding jumper vertical with end face formed, volume encloses and waist is received at its middle part each root bonding jumper is shunk to the axle center in middle bent then, forms the structure of being small at both ends and big in the middle.Crown tape ring is packed into and has just been constituted string of a hat jack in the outer tube after closing up.
The main contact site of present existing crown tape ring is to receive " oval " that produces at the middle part behind the waist, and " oval " is less than pin diameter.After contact pin inserts crown tape ring, resilient metal strip contacts with the contact pin surface at the oval place, because be subjected to structural limitations can not resemble the line spring silk in the line spring structure equably envelope on the contact pin surface, its many resilient metal strips do not form one sheet hyperboloid, and its contact performance is to compare with the multi-thread envelope way of contact of one sheet hyperboloid.
Summary of the invention
The purpose of this invention is to provide a kind of processing technology simple, have good consistency, cost is lower, overall dimensions can be done very little, contact integral type hyperbolic closely reliable, long service life are worn the spring socket contact, replace traditional front and back cover, interior nested structure with integrated single-leaf hyperboloid of revolution band spring structure, overcome above-mentioned shortcoming and defect, the advantage of the way of contact of line concentration spring socket and string of a hat structure.
The object of the present invention is achieved like this: the end that the integral type hyperbolic is worn the spring socket contact is the metal thin-wall sleeve pipe, on its tube wall, cut out some on request at the sealing stria that evenly distributes in garden week and have specific oblique angle with end face, with the thin-walled of this section sleeve pipe be divided between some homogeneous phases, have the grid shape metal thin-wall cannula-like that bonding jumper that specific oblique angle, two ends link to each other is formed with end face, make these bonding jumpers be in linear state by processing.Because each root bonding jumper all has specific oblique angle and is in linear state, according to the analytic geometry theory, the enveloping surface that bonding jumper forms is an one sheet hyperboloid, be the waist drum shape of being small at both ends and big in the middle, the hyperboloid minimum envelop circle that its middle part forms is " gorge circle ", this part is worn the contact site of spring socket contact as the integral type hyperbolic.Electric current is born in parallel connection because the two ends that the integral type hyperbolic is worn all bonding jumpers in the spring socket contact all link together, so wearing the ability that the spring socket contact bears electric current, the integral type hyperbolic improves greatly than wire spring socket, and because it is an integral structure, volume ratio same specification wire spring socket is little, and the probability that breaks down also reduces.
The integral type hyperbolic is worn the spring socket contact and is characterised in that an end is to be linked to each other and had the grid shape metal thin-wall sleeve pipe that the bonding jumper of specific oblique angle constitutes with end face by some two ends between homogeneous phase, is big, middle little " waist drum " shape in two ends.
The integral type hyperbolic is worn the spring socket contact and is characterised in that each root bonding jumper all is in linear state, and the enveloping surface that bonding jumper forms is an one sheet hyperboloid.
The integral type hyperbolic is worn the inclination angle of bonding jumper that the spring socket contact is characterised in that some two ends link to each other and end face between 95 °～115 ° (left-handed) or between 65 °～85 ° (dextrorotation).
The integral type hyperbolic is worn the spring socket contact and is characterised in that it is that tube wall with the metal thin-wall sleeve pipe of an end cuts out some on request at the sealing stria that evenly distributes in garden week and have specific oblique angle with end face, with the thin-walled of this section sleeve pipe be divided between some homogeneous phases, have the grid shape metal thin-wall cannula-like that bonding jumper that specific oblique angle, two ends link to each other is formed with end face, right rear waist fitting moulding, its process is:
(1), grooving: evenly distributing in garden week and having the sealing stria at 95 °～115 ° of inclinations angle cutting out on request on the tube wall of metal thin-wall sleeve pipe with end face, with the thin-walled of this section sleeve pipe be divided between some homogeneous phases, have the grid shape metal thin-wall cannula-like of the bonding jumper composition that specific oblique angle, two ends link to each other with end face;
(2), receive waist: the endoporus of grid shape metal thin-wall sleeve pipe inserts an external diameter and grid shape metal thin-wall casing inner diameter is unidimensional and the middle part is slightly thin cylindrical plug, the diameter at slightly thin place, cylindrical plug middle part and the required formula hyperbolic that is made into one are worn the spring socket contact " gorge circle " diameter is identical, with one with receive block rubber that waist length adapts and be pressed in grid shape bonding jumper position and roll stranding, make every bonding jumper all be in linear state, this moment, bonding jumper and cylindrical plug were tangent at the middle part, and owing between the two ends of every resilient metal strip specific inclination angle is arranged, the enveloping surface that all bonding jumpers form is an one sheet hyperboloid;
(3), timeliness and surface treatment: can carry out the performance that Ageing Treatment and surface treatment improve product by the grid shape metal thin-wall sleeve pipe to moulding, so just obtaining left-handed integral type hyperbolic wears the spring socket contact.
(4), in the grooving process, be 65 °～85 ° inclination angle with end face if the angle of grooving changed into, wear the spring socket contact through receiving the integral type hyperbolic that the waist moulding just obtains dextrorotation again.
After contact pin inserted the integral type hyperbolic and wears the spring socket contact, every bonding jumper was to radially opening, and equably envelope on the contact pin surface.Every bonding jumper and contact pin surface all form a rectangle contact-making surface, and total contact effect is the summation of some resilient metal strip areas---the contact of multiaspect envelope.
The other end of the integral type hyperbolic being worn the spring socket contact is processed into different structures according to difference lead-in wire mode and different installation, and the integral type hyperbolic that so forms is not in specie worn the spring socket contact.
The present invention compared with prior art has following advantage and good effect: (1) is because the integral type hyperbolic is worn the spring socket contact is with the moulding of metal thin-wall sleeve pipe cutting rear waist fitting, its processing technology is simple, cost is lower, have good consistency, is applicable to production in enormous quantities; (2) having adopted the one sheet hyperboloid way of contact, is that the multiaspect envelope contacts with contact pin, and dynamic contact resistance is stable, has shock-resistant, anti-vibration, bears the characteristics that electric current is big, plug is soft, contact resistance is little.(3) electric current is born in parallel connection because the two ends of all bonding jumpers all link together, and is that the multiaspect envelope contacts with contact pin, improves greatly so bear the ability of electric current, can carry out hot plug.(4) because the integral type hyperbolic is worn the spring socket contact and only is made of one deck thin wall casing, and simply integrated, it is littler that the volume of contact can be done, contact more reliably, reduced the consumption of copper material in processing, favourable producing by batch.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of traditional wire spring socket contact
Fig. 2 is the structural representation of string of a hat jack contact
Fig. 3 is the axonometric drawing that has crown tape ring at present
Fig. 4 is that the integral type hyperbolic is worn spring socket contact piece structure schematic diagram
Fig. 5 is the grid shape metal thin-wall sleeve pipe schematic diagram behind the grooving
Fig. 6 is that the integral type hyperbolic of tail end line ball is worn spring socket contact schematic diagram
Fig. 7 is cylindrical plug schematic diagram
Cover in 1. among the figure, 2. protheca, 3. back cover, 4. elastic metallic yarn, 5. outer tube, 6. crown tape ring, 7. metal thin-wall sleeve pipe, 8. stria, 9. bonding jumper, A. crimping place
Embodiment
Traditional wire spring socket contact shown in Figure 1, its structure comprises: interior cover (1), elastic metallic yarn (4), protheca (2), back cover (3).One group of elastic metallic yarn (4) that is arranged in one sheet hyperboloid is housed in interior cover (1), its two ends are clamped by protheca (2) and back cover (3) respectively, protheca (2) and back cover (3) constitute traditional one sheet hyperboloid wire spring socket contact thus through crimping (A place) the formation overcoat that fuses.
String of a hat jack contact shown in Figure 2 is by its interior coaxial crown tape ring (6) that is equipped with of outer tube (5), and to its axle center closing in (B place) crown tape ring (6) can not be deviate from port.
Shown in Figure 3 is the axonometric drawing of present existing crown tape ring, the elastic sheet metal punching press is divided into paliform continuous by some two ends and that the bonding jumper vertical with end face formed, volume encloses and waist is received at its middle part each root bonding jumper is shunk to the axle center in middle bent then, the structure that formation is small at both ends and big in the middle forms present existing crown tape ring (6) after typing is handled.
Fig. 4 is that the integral type hyperbolic is worn spring socket contact piece structure schematic diagram, it is to cut out some on the tube wall with the metal thin-wall sleeve pipe of an end on request at the sealing stria (8) that evenly distributes in garden week and have specific oblique angle with end face that the integral type hyperbolic is worn the spring socket contact, with the thin-walled of this section sleeve pipe be divided between some homogeneous phases, have the grid shape metal thin-wall sleeve pipe (7) of bonding jumper (9) composition that specific oblique angle, two ends link to each other with end face.Make these bonding jumpers (9) be in linear state by processing, because each root bonding jumper (9) all has specific oblique angle and is in linear state, according to the analytic geometry theory, the enveloping surface that bonding jumper (9) forms is an one sheet hyperboloid, be the waist drum shape of being small at both ends and big in the middle, the hyperboloid minimum envelop circle that its middle part forms is " gorge circle ", this part is worn the contact site of spring socket contact as the integral type hyperbolic.Electric current is born in parallel connection because the two ends that the integral type hyperbolic is worn all bonding jumpers (9) in the spring socket contact all link together, so wearing the ability that the spring socket contact bears electric current, the integral type hyperbolic improves greatly than wire spring socket, and because it is an integral structure, volume ratio same specification wire spring socket is little, and the probability that breaks down also reduces.
The integral type hyperbolic is worn the spring socket contact and is characterised in that an end is to be linked to each other and had the grid shape metal thin-wall sleeve pipe (7) that the bonding jumper (9) of specific oblique angle constitutes with end face by some two ends between homogeneous phase, is big, middle little " waist drum " shape in two ends.
The integral type hyperbolic is worn the spring socket contact and is characterised in that each root bonding jumper (9) all is in linear state, and the enveloping surface that bonding jumper (9) forms is an one sheet hyperboloid.
The integral type hyperbolic is worn the inclination angle of bonding jumper (9) that the spring socket contact is characterised in that some two ends link to each other and end face between 95 °～115 ° (left-handed) or between 65 °～85 ° (dextrorotation).
The integral type hyperbolic is worn the spring socket contact and is characterised in that it is to cut out some on the tube wall with an end metal thin-wall sleeve pipe on request at the sealing stria (8) that evenly distributes in garden week and have specific oblique angle with end face, with the thin-walled of this section sleeve pipe be divided between some homogeneous phases, have grid shape metal thin-wall sleeve pipe (7) shape that bonding jumper (9) that specific oblique angle, two ends link to each other is formed with end face, right rear waist fitting moulding, its process is:
(1), grooving: evenly distributing in garden week and having the sealing stria at 95 °～115 ° of inclinations angle cutting out some on the tube wall of metal thin-wall sleeve pipe on request with end face, with the thin-walled of this section sleeve pipe be divided between some homogeneous phases, have the grid shape metal thin-wall sleeve pipe of the bonding jumper composition that specific oblique angle, two ends link to each other with end face;
(2), receive waist: the endoporus of grid shape metal thin-wall sleeve pipe inserts an external diameter and grid shape metal thin-wall casing inner diameter is unidimensional and the middle part is slightly thin cylindrical plug, the diameter at slightly thin place, cylindrical plug middle part is identical with " gorge circle " diameter that the required formula hyperbolic that is made into one is worn the spring socket contact, with one with receive block rubber that waist length adapts and be pressed in grid shape bonding jumper position and roll stranding, make every bonding jumper all be in linear state, this moment, bonding jumper and cylindrical plug were tangent at the middle part, and owing between the two ends of every resilient metal strip specific inclination angle is arranged, the enveloping surface that all bonding jumpers form is an one sheet hyperboloid;
(3), timeliness and surface treatment: can carry out the performance that Ageing Treatment and surface treatment improve product by the grid shape metal thin-wall sleeve pipe to moulding, so just obtaining left-handed integral type hyperbolic wears the spring socket contact.
(4), in the grooving process, be 65 °～85 ° inclination angle with end face if the angle of grooving changed into, wear the spring socket contact through receiving the integral type hyperbolic that the waist moulding just obtains dextrorotation again.
Fig. 5 is the grid shape metal thin-wall sleeve pipe schematic diagram behind the grooving
Fig. 7 is cylindrical plug schematic diagram
After contact pin inserted the integral type hyperbolic and wears the spring socket contact, every bonding jumper (9) was to radially opening, and equably envelope on the contact pin surface.Every bonding jumper (9) all forms a rectangle contact-making surface with the contact pin surface, and total contact effect is the summation of some resilient metal strip areas---the contact of multiaspect envelope.
The other end of the integral type hyperbolic being worn the spring socket contact is processed into different structures according to difference lead-in wire mode and different installation, and the integral type hyperbolic that so forms is not in specie worn the spring socket contact.
The integral type hyperbolic of shown in Figure 6 is tail end line ball is worn spring socket contact schematic diagram, the integral type hyperbolic is worn spring socket contact one end and is formed grid shape metal thin-wall sleeve pipe (7) shape with one sheet hyperboloid structure by grooving, receipts waist, and the other end is processed into the version of crimping lead-in wire as required.So the integral type hyperbolic that forms the tail end line ball is worn the spring socket contact.
The present invention compared with prior art has following advantage and good effect: wear owing to the integral type hyperbolic (1) The spring socket contact is that the metal thin-wall sleeve pipe is cut the rear waist fitting moulding, its processing technology is simple, cost is lower, Have good uniformity, be applicable to production in enormous quantities; (2) adopted the one sheet hyperboloid way of contact, Be that the multiaspect envelope contacts with contact pin, dynamic contact resistance is stable, has shock-resistant, anti-vibration, bears electric current Greatly, soft, the little characteristics of contact resistance of plug. (3) two ends owing to all metal bars all link together Electric current is born in parallel connection, and is that the multiaspect envelope contacts with contact pin, greatly improves so bear the ability of electric current, can carry out Hot plug. (4) since the integral type hyperbolic wear the spring socket contact and only consisted of by one layer of thin wall casing, simple Integrated, it is littler that the volume of contact can be done, and contacts more reliably, reduced the consumption of copper material in the processing Amount, favourable producing by batch.
Claims (5)
1, a kind of integral type hyperbolic is worn the spring socket contact, it is characterized in that an end by between some homogeneous phases, have the grid shape metal thin-wall sleeve pipe that bonding jumper that specific oblique angle, two ends link to each other is formed with end face, the other end is processed to different structures according to difference lead-in wire mode and different installation.
2, integral type hyperbolic according to claim 1 is worn the spring socket contact, it is characterized in that the grid shape metal thin-wall sleeve portion of contact site is big, middle little " waist drum " shape in two ends.
3, integral type hyperbolic according to claim 1 is worn the spring socket contact, it is characterized in that each root bonding jumper all is in linear state, and the enveloping surface that bonding jumper forms is an one sheet hyperboloid.
4, integral type hyperbolic according to claim 1 is worn the spring socket contact, and the inclination angle that it is characterized in that bonding jumper that some two ends link to each other and end face is between 95 °～115 ° (left-handed) or between 65 °～85 ° (dextrorotation).
5, integral type hyperbolic according to claim 1 is worn the spring socket contact, it is characterized in that it being to cut out some on the tube wall with an end metal thin-wall sleeve pipe on request at the sealing stria that evenly distributes in garden week and have specific oblique angle with end face, with the thin-walled of this section sleeve pipe be divided between some homogeneous phases, have the grid shape metal thin-wall cannula-like that bonding jumper that specific oblique angle, two ends link to each other is formed with end face, right rear waist fitting moulding, its process is:
(1), grooving: the tube wall of metal thin-wall sleeve pipe is cut out some is on request evenly distributing in garden week and having the sealing stria at 95 °～115 ° of inclinations angle with end face, with the thin-walled of this section sleeve pipe be divided between some homogeneous phases, have the grid shape metal thin-wall cannula-like of the bonding jumper composition that specific oblique angle, two ends link to each other with end face;
(2), receive waist: the endoporus of grid shape metal thin-wall sleeve pipe inserts an external diameter and grid shape metal thin-wall casing inner diameter is unidimensional and the middle part is slightly thin cylindrical plug, the diameter at slightly thin place, cylindrical plug middle part is identical with " gorge circle " diameter that the required formula hyperbolic that is made into one is worn the spring socket contact, with one with receive block rubber that waist length adapts and be pressed in grid shape bonding jumper position and roll stranding, make every bonding jumper all be in linear state, this moment, bonding jumper and cylindrical plug were tangent at the middle part, and owing between the two ends of every resilient metal strip specific inclination angle is arranged, the enveloping surface that all bonding jumpers form is an one sheet hyperboloid;
(3), timeliness and surface treatment: can carry out the performance that Ageing Treatment and surface treatment improve product by the grid shape metal thin-wall sleeve pipe to moulding, so just obtaining left-handed integral type hyperbolic wears the spring socket contact.
(4), in the grooving process, be 65 °～85 ° inclination angle with end face if the angle of grooving changed into, wear the spring socket contact through receiving the integral type hyperbolic that the waist moulding just obtains dextrorotation again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03159652 CN1288802C (en) | 2003-09-25 | 2003-09-25 | Integrated hyperbolical spring-bearing receptacle contact component and its technological process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03159652 CN1288802C (en) | 2003-09-25 | 2003-09-25 | Integrated hyperbolical spring-bearing receptacle contact component and its technological process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1536717A true CN1536717A (en) | 2004-10-13 |
| CN1288802C CN1288802C (en) | 2006-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03159652 Expired - Fee Related CN1288802C (en) | 2003-09-25 | 2003-09-25 | Integrated hyperbolical spring-bearing receptacle contact component and its technological process |
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| CN (1) | CN1288802C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324657A (en) * | 2011-05-26 | 2012-01-18 | 苏州智绿环保科技有限公司 | Connecting socket and charging connector using same |
| CN103872549A (en) * | 2014-04-18 | 2014-06-18 | 沈阳兴华航空电器有限责任公司 | Process for stabilizing insertion and extraction force of contact of 22D slot and process for stabilizing insertion and extraction force of contact of phi 1.5 leaf spring |
| CN105680285A (en) * | 2014-04-18 | 2016-06-15 | 沈阳兴华航空电器有限责任公司 | Technology for stabilizing plugging force of 22D slotted hole contact body |
| CN103872549B (en) * | 2014-04-18 | 2016-11-30 | 沈阳兴华航空电器有限责任公司 | One stablizes φ 1.5 bag spring film perforation contact contact engaging and separating force technique |
| CN106252941A (en) * | 2016-09-29 | 2016-12-21 | 东莞市伊克斯康电子科技有限公司 | A kind of hyperboloid big electric current spiral contactor |
| WO2017167283A1 (en) * | 2016-04-01 | 2017-10-05 | 深圳市特拉利线簧端子技术有限公司 | Stamped-out wiring spring jack and processing method thereof |
| CN109586080A (en) * | 2018-11-23 | 2019-04-05 | 绵阳市华永盛科技有限公司 | A kind of processing technology of double C shape solid matter wire spring socket and coil spring silk |
| CN109586079A (en) * | 2018-11-23 | 2019-04-05 | 绵阳市华永盛科技有限公司 | A kind of double C shape is close around wire spring socket |
| CN117068403A (en) * | 2023-08-09 | 2023-11-17 | 南京理工大学 | Rope net emitter with integrated emission pipe net bin |
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| CN102157820B (en) * | 2010-12-30 | 2016-02-24 | 倪泉 | Compact jack contact piece and manufacture method thereof |
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2003
- 2003-09-25 CN CN 03159652 patent/CN1288802C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324657A (en) * | 2011-05-26 | 2012-01-18 | 苏州智绿环保科技有限公司 | Connecting socket and charging connector using same |
| CN103872549A (en) * | 2014-04-18 | 2014-06-18 | 沈阳兴华航空电器有限责任公司 | Process for stabilizing insertion and extraction force of contact of 22D slot and process for stabilizing insertion and extraction force of contact of phi 1.5 leaf spring |
| CN105680285A (en) * | 2014-04-18 | 2016-06-15 | 沈阳兴华航空电器有限责任公司 | Technology for stabilizing plugging force of 22D slotted hole contact body |
| CN103872549B (en) * | 2014-04-18 | 2016-11-30 | 沈阳兴华航空电器有限责任公司 | One stablizes φ 1.5 bag spring film perforation contact contact engaging and separating force technique |
| CN105680285B (en) * | 2014-04-18 | 2017-11-17 | 沈阳兴华航空电器有限责任公司 | A kind of stable 22D grooved bore contact contact engaging and separating force techniques |
| WO2017167283A1 (en) * | 2016-04-01 | 2017-10-05 | 深圳市特拉利线簧端子技术有限公司 | Stamped-out wiring spring jack and processing method thereof |
| CN107293879A (en) * | 2016-04-01 | 2017-10-24 | 王爽 | A kind of punching press wire spring socket |
| CN106252941A (en) * | 2016-09-29 | 2016-12-21 | 东莞市伊克斯康电子科技有限公司 | A kind of hyperboloid big electric current spiral contactor |
| CN109586080A (en) * | 2018-11-23 | 2019-04-05 | 绵阳市华永盛科技有限公司 | A kind of processing technology of double C shape solid matter wire spring socket and coil spring silk |
| CN109586079A (en) * | 2018-11-23 | 2019-04-05 | 绵阳市华永盛科技有限公司 | A kind of double C shape is close around wire spring socket |
| CN117068403A (en) * | 2023-08-09 | 2023-11-17 | 南京理工大学 | Rope net emitter with integrated emission pipe net bin |
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|---|---|
| CN1288802C (en) | 2006-12-06 |
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