CN210072568U

CN210072568U - Pen head of capacitance pen

Info

Publication number: CN210072568U
Application number: CN201921301009.0U
Authority: CN
Inventors: 叶国松
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-02-14
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to a capacitance pen nib, which comprises a slender cylindrical conductor refill, and is characterized in that a middle-shaped supporting seat is sleeved at the middle part of the conductor refill, and a guiding seat is arranged at the tail end of the conductor refill; the front end of the supporting seat is sleeved with a conical conductor pen point, and the rear end of the supporting seat is provided with an annular spring. The utility model discloses written global design, when whole electric capacity pen during operation, refill and conductor nib back-and-forth movement together have reduced the risk that relative motion destroyed the insulating layer, have prolonged life, and in addition, the part obviously reduces, has improved assembly and production efficiency.

Description

Pen head of capacitance pen

Technical Field

The utility model relates to a nib of active electric capacity pen.

Background

The capacitive pen is a pen which is made of a conductor material and used for completing man-machine conversation operations by writing on a capacitive touch screen, and the capacitive pen is an auxiliary device for completing man-machine conversation by simulating fingers of a person by using the conductor material.

At present, capacitive pens in the market are mainly divided into passive capacitive pens and active capacitive pens, the passive capacitive pens simulate the touch effect of fingers, pen points are made of conductive materials such as conductive foam, metal and brushes, capacitance change can be influenced by pen points enough, electronic components are not arranged inside the passive capacitive pens, and the passive capacitive pens are purely mechanical products. The active capacitance pen is an electronic product, a circuit board connected with the pen point is arranged in the pen-shaped shell, and the circuit board, the pen point and a capacitance screen of the electronic device form a signal loop together to realize touch screen writing.

An active capacitive pen nib of an existing product, such as the technical scheme disclosed in chinese patent document CN107145247A, generally includes a conductive pen nib connected to a pen-shaped housing, and a pen core assembly sleeved in the conductive pen nib and electrically connected to a circuit board, where the pen core assembly can move back and forth in the conductive pen nib. Based on the active capacitive stylus typically having both transmit (actuation) and receive (sensing) functions, the components of the stylus portion (e.g., the conductive stylus and the conductive cartridge assembly) need to be insulated from each other. The product of the prior art has the advantages of multiple parts, complex assembly and low production efficiency, and the insulation between the metal shell and the conductive pen core is ensured by the insulation treatment on the surface of a workpiece, after the product is used for a period of time (continuous relative motion), the surface between the metal shell and the conductive pen core is abraded, the insulating layer is easy to damage, and the function of the whole capacitance pen is disabled.

Disclosure of Invention

The utility model discloses a special nib of active electric capacity pen adopts conductor nib and refill subassembly integrated design scheme, has simplified part quantity, has improved production efficiency, has prolonged life.

In order to solve the technical problem, the utility model provides an active capacitance pen nib, which comprises a slender cylindrical conductor refill, a middle part is sleeved with a middle-shaped supporting seat in an interference manner, and the tail end is provided with a guiding seat; the front end of the supporting seat is tightly sleeved with a conical conductor pen point, and the rear end of the supporting seat is provided with an annular spring which is electrically connected with the capacitance pen main board. The guide holder can move (slide) back and forth within the pen-shaped housing.

Furthermore, a plastic sleeve is clamped at the periphery of the conical conductor pen point, and a limiting boss is arranged at the periphery of the plastic sleeve and used for limiting the plastic sleeve to move forwards in the pen point seat.

Further, the pen core comprises a conical conductor pen point, a hollow connecting cylinder and a lead wire for connecting the conductor pen point and the circuit board.

Adopt the technical scheme of the utility model, because written global design, when whole electric capacity pen during operation, the refill and the nib back-and-forth movement together, relative motion is no longer each other, has reduced the risk that relative motion destroys the insulating layer, has prolonged life, and in addition, the part obviously reduces, has improved assembly and production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the utility model in use.

Detailed Description

The special pen point for the capacitance pen of the present invention is further described with reference to the accompanying drawings.

Referring to the attached drawing 1, in order to provide a preferred embodiment of the active capacitance pen nib of the present invention, the active capacitance pen nib comprises a slender cylindrical conductor refill 10, a middle part is sleeved with a middle-shaped supporting seat 11 in an interference manner, and the tail end is provided with a guiding seat 12; the front end of the supporting seat is tightly sleeved with a conical conductive pen point 13, and the rear end of the supporting seat is provided with an annular spring 14 which is electrically connected with the capacitance pen main board. The guide 12 is movable (slidable) back and forth within the pen-shaped housing.

Fig. 2 is a schematic view of the structure of the present invention, which is a preferred application scheme. As shown in fig. 2, the capacitive pen includes a pen head unit 1, a housing unit 2, a circuit unit 3, and a power supply unit. The housing unit 2 comprises a hollow metal tube 21 and a plastic inner housing 22, wherein the outer side of the front end of the plastic inner housing 22 is provided with an external thread 221 for connecting the pen point seat 23 with the internal thread. And a guide groove 222 is provided in the front end thereof for engaging with the guide seat 12 for receiving the nib 1 portion so as to be movable back and forth in the axial direction. A circuit board 31 is clamped at the rear end of the guide slot 222 of the plastic inner shell 22.

Referring to fig. 1, a plastic sleeve 131 is clamped around the tapered conductive pen tip 13, a limiting boss 1311 is disposed around the plastic sleeve, and a radial limiting step is disposed in the pen tip seat 23. When the pen point 13 is inserted into the pen point seat 23, the pen point is limited to move backwards, but not move forwards, and cannot slide out (the pen point seat). The pen cartridge 10 includes a tapered conductor nib 101, a hollow connecting cylinder 102, and a lead wire 103 connecting the conductor nib with the circuit board 31.

Adopt the technical scheme of the utility model, because written global design, when whole electric capacity pen during operation, the refill nib is the back-and-forth movement together, relative motion no longer each other has reduced the risk that relative motion destroys the insulating layer, has prolonged life, and in addition, the part obviously reduces, has improved assembly and production efficiency.

The above description is only the best embodiment of the present invention, and does not limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made to the above embodiments by the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A pen point of a capacitance pen comprises a slender cylindrical conductor pen core, and is characterized in that a middle supporting seat is sleeved at the middle part of the conductor pen core, and a guiding seat is arranged at the tail end of the conductor pen core; the front end of the supporting seat is sleeved with a conical conductor pen point, and the rear end of the supporting seat is provided with an annular spring.

2. The capacitive pen nib of claim 1, wherein a plastic sleeve is snapped around the tapered conductor nib, and a limiting boss is provided on the outer circumference of the sleeve.

3. The capacitive pen nib of claim 2, wherein the cartridge comprises a tapered conductor nib, a hollow connector barrel, and a wire connecting the conductor nib to the circuit board.