Stylus spring needle connector
Technical Field
The utility model relates to the technical field of connectors, in particular to a stylus spring pin connector.
Background
In recent years, more and more electronic products with touch screens are provided, and the interactive operation of the touch screens is greatly improved compared with the past, wherein the touch pens used for inputting instructions to computer screens, mobile devices, drawing boards and other devices with touch screens are small pen-shaped tools. Therefore, the structure of the pen point of the existing active capacitance pen is improved, and the use mode and the application scene of the active capacitance pen can be expected to be expanded.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a stylus spring pin connector which is arranged at a nib of a stylus and is different from a nib structure of a traditional stylus.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows: the utility model provides a stylus pogo pin connector sets up the nib end at the stylus, includes the double-end pogo pin as the refill, overlaps the cartridge frame of establishing in the double-end pogo pin outside, the cartridge frame sets up in the pen-holder of stylus, cartridge frame includes spacer sleeve and the adapter sleeve of coaxial setting outside from the endotheca, the spacer sleeve is established in the needle tubing outside of double-end pogo pin, mutual interference fit between adapter sleeve, spacer sleeve, the needle tubing, two needle shaft contact ends of double-end pogo pin expose in the both ends of spacer sleeve.
In the above technical scheme, the double-end spring needle further comprises a spring part coaxially arranged in the needle tube, and two ends of the spring part are respectively in contact connection with the two needle shafts.
In the technical scheme, the connecting sleeve extends towards the pen holder to form a connecting pin.
In the above technical scheme, the connecting pins are arranged along the axis direction of the parallel connecting sleeve, the connecting pins comprise a plane section and an arc surface transition section, and the arc surface transition section is arranged between the end surface of the connecting sleeve and the plane section.
In the above technical solution, the two connecting pins are symmetrically arranged on the connecting sleeve.
In the above technical scheme, the both ends mouth of pipe of needle tubing is through the binding off terminal surface that the pressure riveting formed, and a binding off terminal surface that is located the front flushes with the terminal surface of spacer, the terminal surface of adapter sleeve, and another binding off terminal surface supports and leans on spacing step on the spacer inner wall.
In the technical scheme, the end face of the spacer sleeve, which is close to the penholder, is convexly provided with the annular boss, and in a free state, the needle shaft contact end, which is close to the penholder, penetrates through the middle hole of the annular boss and is higher than the annular boss.
In the technical scheme, the connecting sleeve is provided with the connecting ring in an interference fit mode with the inner wall of the pen holder, the connecting sleeve is in clearance fit with the connecting ring, and the end face of the connecting ring is flush with the end face of the pen holder.
In the above technical scheme, the spacer is an electrically insulating spacer.
In the above technical solution, the contact end of the needle shaft is a spherical arc surface.
The utility model has the beneficial effects that the structure is reasonable, the design is novel, the practicability is strong, the pen point structure of the active capacitance pen with the pressure sensor and other types of touch pens is simplified by taking the double-head spring needle as the pen core of the touch pen, the double-head spring needle is integrally assembled in the pen holder, the assembling process of the touch pen is simplified, and the production cost is reduced.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic exploded view of the present invention.
Fig. 3 is a schematic cross-sectional structure of the present invention.
In the figure: 1. a double-ended pogo pin; 11. a needle shaft; 12. a needle tube; 13. a spring member; 2. a spacer sleeve; 21. a boss; 22. a limiting step; 3. connecting sleeves; 31. a connecting pin; 32. a planar section; 33. a cambered surface transition section; 10. a pen holder; 20. and (7) connecting rings.
Detailed Description
Embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-3, a stylus pogo pin connector is arranged at a pen head end of a stylus, and comprises a double-ended pogo pin 1 as a pen core, and a pen core holder sleeved outside the double-ended pogo pin 1, the pen core holder is arranged in a pen holder 10 of the stylus, the pen core holder comprises a spacer 2 and a connecting sleeve 3 coaxially arranged from an inner sleeve, the spacer 2 is sleeved outside a needle tube 12 of the double-ended pogo pin 1, the connecting sleeve 3, the spacer 2 and the needle tube 12 are in interference fit with each other, and contact ends of two needle shafts 11 of the double-ended pogo pin 1 are exposed out of two ends of the spacer 2.
The double-ended pogo pin 1 further includes a spring member 13 coaxially disposed in the needle tube 12, and both ends of the spring member 13 are respectively in contact connection with the two needle shafts 11. The spring member 13 is a stainless steel metal spring. The needle tube 12 and the needle shaft 11 are made of copper.
The connecting sleeve 3 extends towards the penholder 10 to form a connecting pin 31. The connecting foot 31 is arranged along the axial direction of the parallel connecting sleeve 3, the connecting foot 31 comprises a plane section 32 and a cambered surface transition section 33, and the cambered surface transition section 33 is arranged between the end surface of the connecting sleeve 3 and the plane section 32. The two connecting feet 31 are symmetrically arranged on the connecting sleeve 3. The connecting sleeve 3 is an integrally punched metal piece, and the connecting pins 31 are welded and fixed with the circuit board in the pen holder.
The mouth of each of the two ends of the needle tube 12 is riveted to form a closed end face, one closed end face positioned in the front part is flush with the end face of the spacer sleeve 2 and the end face of the connecting sleeve 3, and the other closed end face abuts against the limiting step 22 on the inner wall of the spacer sleeve 2. The double-ended pogo pin 1 is restrained and positioned by the restraining step 22.
The end surface of the spacer 2 near the penholder 10 is provided with an annular boss 21 in a protruding way, and in a free state, the contact end of the needle shaft 11 near the penholder 10 passes through the central hole of the annular boss 21 and is higher than the annular boss 21. The boss 21 can play a limiting role so that the double-ended pogo pin 1 is assembled in place.
The connecting sleeve 3 is sleeved with a connecting ring 20, the connecting ring 20 is in interference fit with the inner wall of the pen holder 10, the connecting sleeve 3 is in clearance fit with the connecting ring 20, and the end face of the connecting ring 20 is flush with the end face of the pen holder 10.
Spacer 2 is electric insulation spacer 2, isolates double-end pogo pin 1, adapter sleeve 3, avoids directly switching on between the two.
The contact end of the needle shaft 11 is a spherical cambered surface. The contact between the spherical cambered surface of the contact end of the needle shaft 11 in the front of the double-head spring needle 1 and the touch screen can avoid scraping the touch screen.
The present embodiment is described with reference to a conventional touch pen structure, and referring to a touch pen (application number TW110204418) in taiwan new patent, the touch pen may further include a pressure sensor in the pen holder 10, and the double-headed pogo pin 1 and the pen core frame of the present embodiment play a role of the pen core and the buffer module in the patent. The pressure sensor is installed on the circuit board, and the contact end of double-end pogo pin 1 upside supports and leans on pressure sensor for measure the pressing force (writing dynamics promptly) that the stylus write. The connecting pins 31 of the connecting sleeve 3 are welded and fixed with the circuit board, so that the refill holder is prevented from rotating and shifting. During the equipment, the needle axle and the pressure sensor contact of 1 upside of double-end spring needle and extrusion guarantee that the needle axle will contract one section distance in the needle tubing, and when downside needle axle was extrudeed promptly, the spring part can promote upside needle axle to have certain displacement when acting on upside needle axle, guarantees that pressure sensor can measure the pressing force of writing. Certainly, a pen point decorating part which is in smooth transition with the outer wall of the pen holder can be arranged at the pen point, and the needle shaft at the lower side of the double-head spring needle is exposed out of the pen point decorating part.
The touch pen has the advantages of reasonable structure, novel design and strong practicability, the double-head spring needle 1 is used as a refill of the touch pen, the pen point structure of active capacitance pens with pressure sensors and other types of touch pens is simplified, the double-head spring needle 1 is integrally assembled in the pen holder 10, the assembling process of the touch pen is simplified, and the production cost is reduced.
The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.