The one sheet hyperboloid crown tape ring
Affiliated technical field
The utility model belongs to electric connector contact, particularly a kind of one sheet hyperboloid crown tape ring.
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.
But 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 utility model provide a kind of processing technology simple, have good consistency, cost is lower, overall dimensions are less relatively, contact is closely reliable, the one sheet hyperboloid crown tape ring of long service life, replace traditional front and back cover, interior nested structure with one sheet hyperboloid crown tape ring 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 purpose of this utility model be achieved in that with elastic sheet metal on request punching press be divided into by some two ends between homogeneous phase and link to each other and have the grid shape sheet metal that the resilient metal strip of specific oblique angle is formed with end face, volume encloses moulding then.Because each root bonding jumper of grid shape sheet metal all has specific oblique angle, and when rolling up circle, keep each root bonding jumper to be in linear state.According to the analytic geometry theory, the enveloping surface that resilient metal strip forms is an one sheet hyperboloid, be the waist drum shape of being small at both ends and big in the middle, obtain the one sheet hyperboloid crown tape ring after handling through typing, the hyperboloid minimum envelop circle that its middle part forms is " gorge circle ".Electric current is born in parallel connection because the two ends of all resilient metal strips all link together, and improves greatly than wire spring socket so the one sheet hyperboloid crown tape ring bears the ability of electric current, and structure is also simple than wire spring socket.
The one sheet hyperboloid crown tape ring is characterised in that by some two ends between homogeneous phase and links to each other and have the eyelet that the resilient metal strip of specific oblique angle is formed with end face, is " waist drum " shape that two ends are big, the centre is little.
The one sheet hyperboloid crown tape ring is characterised in that each root resilient metal strip all is in linear state, and the enveloping surface that resilient metal strip forms is an one sheet hyperboloid, and the bonding jumper two ends part that links to each other is cylindric with diameter.
The one sheet hyperboloid crown tape ring is characterised in that the inclination angle of resilient metal strip that some two ends link to each other and end face is between 95 °~115 ° (left-handed) or between 65 °~85 ° (dextrorotation).
The one sheet hyperboloid crown tape ring be characterised in that be with elastic sheet metal on request punching press be divided into by some two ends between homogeneous phase and link to each other and have the grid shape sheet metal that the resilient metal strip of specific oblique angle is formed with end face, volume encloses moulding then.
After contact pin inserted the one sheet hyperboloid crown tape ring, every resilient metal strip was to radially opening, and equably envelope on the contact pin surface.Every resilient metal strip 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.
In the coaxial blind cylindrical hole that is contained in outer tube one end of an one sheet hyperboloid crown tape ring, and close up to its axle center at the blind hole end one sheet hyperboloid crown tape ring is blocked and can not deviate from, do not have one for adapting to the one coaxial clyinder that different lead-in wire modes and different installation are processed to different structures, so form not hyperboloid string of a hat jack contact in specie with the other end of blind hole.
The utility model compared with prior art has following advantage and good effect: (1) is because the one sheet hyperboloid crown tape ring is with volume circle moulding after the elastic sheet metal punching press, 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) the hyperboloid string of a hat jack contact that is made of one sheet hyperboloid crown tape ring and outer tube is simple in structure integrated, it is littler that the volume of contact can be done, reduced the consumption of copper material in the processing, favourable producing by batch, adopt the applicable different application occasion of outer tube of different lead-in wire forms and fixed form, be convenient to management and production.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
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 the expansion schematic diagram of Fig. 3
Fig. 5 is the axonometric drawing of one sheet hyperboloid crown tape ring
Fig. 6 is the expansion schematic diagram of Fig. 5
Fig. 7 is the schematic diagram that has adopted the hyperboloid string of a hat jack contact of one sheet hyperboloid crown tape ring
Cover in 1. among the figure, 2. protheca, 3. back cover, 4. elastic metallic yarn, 5. outer tube, 6. crown tape ring, 7. one sheet hyperboloid crown tape ring, A. crimping place, B. closing in 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 dress crown tape ring (6) 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 crown tape ring (6) after typing is handled.Fig. 4 is that it launches schematic diagram.
Fig. 5 is the axonometric drawing of one sheet hyperboloid crown tape ring, one sheet hyperboloid crown tape ring (7) be with elastic sheet metal on request punching press be divided into by some two ends between homogeneous phase and link to each other and have the grid shape sheet metal that the resilient metal strip of specific oblique angle is formed with end face, roll up circle then.Because each root bonding jumper of grid shape sheet metal all has specific oblique angle, and when rolling up circle, keep each root bonding jumper to be in linear state.According to the analytic geometry theory, the enveloping surface that resilient metal strip forms is an one sheet hyperboloid, is the waist drum shape of being small at both ends and big in the middle.Form one sheet hyperboloid crown tape ring (7) after typing is handled, the hyperboloid minimum envelop circle that its middle part forms is " gorge circle ".Fig. 6 is that it launches schematic diagram.
One sheet hyperboloid crown tape ring (7) is characterised in that by some two ends between homogeneous phase and links to each other and have the eyelet that the resilient metal strip of specific oblique angle is formed with end face, is " waist drum " shape that two ends are big, the centre is little.
One sheet hyperboloid crown tape ring (7) is characterised in that each root resilient metal strip all is in linear state, and the enveloping surface that resilient metal strip forms is an one sheet hyperboloid, and the bonding jumper two ends part that links to each other is cylindric with diameter.
One sheet hyperboloid crown tape ring (7) is characterised in that the inclination angle of resilient metal strip that some two ends link to each other and end face is between 95 °~115 ° (left-handed) or between 65 °~85 ° (dextrorotation).
One sheet hyperboloid crown tape ring (7) be characterised in that be with elastic sheet metal on request punching press be divided into by some two ends between homogeneous phase and link to each other and have the grid shape sheet metal that the resilient metal strip of specific oblique angle is formed with end face, volume encloses moulding then.
After contact pin inserted one sheet hyperboloid crown tape ring (7), every resilient metal strip was to radially opening, and equably envelope on the contact pin surface.Every resilient metal strip 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 coaxial end face of packing into of one sheet hyperboloid crown tape ring (7) is had in the outer tube of circular blind hole, and close up to its axle center at the blind hole port, one sheet hyperboloid crown tape ring (7) can not be deviate from, outer tube does not have one for adapting to the one coaxial clyinder that different lead-in wire modes and different installation are processed to different structures with the other end of blind hole, constitutes hyperboloid string of a hat jack contact thus.
Shown in Figure 7 is the structural representation that has adopted the hyperboloid string of a hat jack contact of one sheet hyperboloid crown tape ring.The one end that is made of metal has the outer tube (5) of blind cylindrical hole, its interior coaxial one sheet hyperboloid crown tape ring (7) that an external diameter is the blind hole internal diameter that is equipped with, and the blind hole port to its axle center close up (B place) one sheet hyperboloid crown tape ring (7) can not be deviate from, with the coaxial long column body of one of the other end of blind hole, its structure does not adopt the lead-in wire form of crimping to outer tube (5) as required.So form the hyperboloid string of a hat jack contact of crimping lead-in wire form.
The utility model compared with prior art has following advantage and good effect: (1) is because the revolution of single leaf is two The curved surface crown tape ring is that its processing technology is simple, lower, the tool of cost with volume circle moulding after the elastic sheet metal punching press Good uniformity is arranged, 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 The characteristics that greatly, plug is soft, contact resistance is little. (3) by Uniparted hyperboloid rotary crown tape ring and outer tube structure The hyperboloid string of a hat jack contact that becomes is simple in structure integrated, and it is littler that the volume of contact can be done, and subtracts The consumption that has lacked copper material in the processing, favourable producing by batch, adopt different lead-in wire forms and fixed form outside The applicable different application occasion of sleeve pipe is convenient to management and production.