CN211778684U

CN211778684U - Spring for notebook electronic pen

Info

Publication number: CN211778684U
Application number: CN201922184574.XU
Authority: CN
Inventors: 李冬山; 李慧
Original assignee: Guangdong Spring Industry Co ltd
Current assignee: Guangdong Spring Industry Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-10-27
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a spring for a notebook electronic pen, which comprises a compression part and a circuit contact part, wherein the compression part is formed by winding stainless steel nickel-plated steel wires; the compression part comprises at least two coils positioned on the same central line; the spiral ring is of an annular structure, the first ring and the tail ring of the spiral ring are sequentially connected, the diameter of the ring is gradually increased, and a spiral ring through hole is surrounded in the middle; the top end face of the first coil and the bottom end face of the tail coil of the helicoidal coil are both flat faces, and the head end of the first coil is connected with a folding part; the tail end of the folded part is downward, and the folded part and the first coil of the spiral coil form an included angle of 90 degrees; the center of the circuit contact part is arranged on the central line of the spiral coil, is connected with the tail coil of the spiral coil and comprises a vertical part and a fan-shaped part which are symmetrically arranged left and right; the fan-shaped part is arranged downwards, and the top end of the fan-shaped part is connected with the vertical part; compared with the traditional electronic pen spring, the spring has the advantages of good feedback touch feeling, prevention of excessive pressing, difficulty in running and material saving.

Description

Spring for notebook electronic pen

Technical Field

The utility model relates to a spring technical field, in particular to a spring for notebook electronic pen.

Background

The capacitive pen is a pen which is made of a conductor material, has a conductive characteristic and is used for touch control of the capacitive screen to complete man-machine interaction operation. The capacitance pen is an auxiliary device which uses conductor materials to imitate human bodies to finish man-machine conversation; at present, capacitive touch pens in the market are mainly divided into passive capacitive type and active capacitive type, the passive type is to simulate the touch effect of fingers, and the pen point is made of conductive materials such as conductive foam, metal and a hairbrush, so long as the pen point can influence the capacitance change sufficiently. Therefore, the passive capacitance pen is a thick pen point; the nib material of the active capacitive stylus is not soft rubber which is commonly used by common styluses and has good conductivity, but POM which has novel high strength, high impact resistance and excellent smoothness is adopted. According to the characteristics of POM, the smoothness of the pen point is better, and the superior writing smoothness which is not existed in the passive touch pen in the market can be realized.

When the active capacitance pen is used, the touch screen receives signals sent by the capacitance pen and calculates three-axis coordinates, so that the effect similar to the thickness of an actual pen point can be realized; the existing active capacitance pen battery and circuit board are connected by electrode plates, and the side of the circuit board is provided with a function key extending to the outer wall of the pen container to provide the functions of switching circuits and switching signals, a spring is arranged between the function key and the circuit board to provide resilience force of the function key and provide pressure to the circuit board, but the spring used in the capacitance pen in the past is generally a common straight-tube spiral spring, but the characteristic line of the spring of the straight-tube spiral spring is linear, namely, the total number of spiral coils participating in work is unchanged along with the increase of deformation degree when the spring is pressed, the pressure is uniform when the spring is pressed, but because the function key needs to be pressed by hands, the elastic force with uniform pressure can lead a person to use overlarge force to press the function key to the bottom part carelessly, the feedback touch sense is small, and whether the function key is pressed in place or not can not be known, the indication lamp on the capacitance pen needs to be observed, so that the service life and the use experience of a circuit board on the capacitance pen are influenced; and straight section of thick bamboo spiral spring central part is hollow structure, and the switching button on the circuit board is cylindric, needs at this moment to set up a horizontal board additional and just can transmit spring force to the switching button on to the spring slides easily in the pen container, influences job stabilization nature.

Therefore, improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a spring for a notebook electronic pen, so as to solve the above-mentioned problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a spring for notebook computer electronic pen comprises a compression part and a circuit contact part which are formed by winding stainless steel nickel-plated steel wires; the compression part comprises at least two coils positioned on the same central line; the spiral ring is of an annular structure, the first ring and the tail ring of the spiral ring are sequentially connected, the diameter of the ring is gradually increased, and a spiral ring through hole is surrounded in the middle; the top end face of the first coil and the bottom end face of the tail coil of the helicoidal coil are both flat faces, and the head end of the first coil is connected with a folding part; the tail end of the folded part is downward, and the folded part and the first coil of the spiral coil form an included angle of 90 degrees; the center of the circuit contact part is arranged on the central line of the spiral coil, is connected with the tail coil of the spiral coil and comprises a vertical part and a fan-shaped part which are symmetrically arranged left and right; the fan-shaped part is arranged downwards, and the top end of the fan-shaped part is connected with the vertical part; and a bearing part is formed between the vertical part and the fan-shaped part.

Further, the total number of turns of the spiral ring is 4.75 turns, and the length of the compression part is 7 mm.

Further, the total length of the compression part and the circuit contact part is 13.5 mm.

Further, the outer diameter of the first coil of the spiral coil is 3.87mm, and the outer diameter of the tail coil of the spiral coil is 7.2 mm.

Further, the diameter of the spring wire of the compression part and the circuit contact part is 0.5 mm.

Further, the outer diameter of the vertical part is 2.15 mm.

Further, the length of the folded part is 2.22 mm.

The utility model has the advantages that 1, the feedback touch sense is good; the spiral coil of the middle compression part of the utility model is gradually increased from top to bottom, the number of the spring coils participating in the work is reduced along with the increase of the deformation degree, and the spring index is developed towards a smaller direction, so that the spring is harder to press, the function keys are prevented from being excessively pressed, and the service life and the use experience of the capacitance pen are increased; 2. the displacement is not easy, and the material cost is reduced; through having set up folding portion at the compression head end, when the electric capacity pen was advanced in the installation, in the spout was gone into to folding portion card, avoided the spring excessively to shift at subsequent during operation, increased stability, the sectorial part has been connected to the compression bottom, and the sectorial part bottom can be removed downwards when the compression is compressed to touch the switching button on the electric capacity pen circuit board, compare in active electric capacity pen in the past, need not additionally set up horizontal version, reduce material cost.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a bottom view of the present invention;

FIG. 5 is a schematic view of the present invention during compression;

10. a compression section; 11. a coil; 12. a folding part; 13. a coil through hole; 20. a circuit contact portion; 21. a sector; 22. a vertical portion. 23. A bearing part.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the present invention are simplified and use non-precise ratios, and are only used for the purpose of facilitating and clearly assisting the description of the embodiments of the present invention.

As shown in fig. 1 to 5, a spring for a notebook electronic pen includes a compression part 10 formed by winding a stainless steel nickel-plated steel wire and a circuit contact part 20; the total length of the compression part 10 and the circuit contact part 20 is 13.5mm, and the diameter of the spring wire is 0.5 mm; when the capacitive pen is placed, the compression part 10 is positioned in a function key outside the capacitive pen, and the circuit contact part 20 is positioned at the front end of a circuit board switching button in the pen container;

the length of the compression part is 7mm, and the compression part comprises 4.75 circles of spiral coils 11 which are positioned on the same central line; the spiral ring 11 is of an annular structure, the first circle and the tail circle of the spiral ring are sequentially connected, the diameter of the spiral ring is gradually increased, the outer diameter of the first circle of the spiral ring 11 is 3.87mm, the outer diameter of the tail circle of the spiral ring 11 is 7.2mm, and a spiral ring through hole 13 is surrounded in the middle; when the function key is pressed, the compression part 20 is compressed downwards, when the function key is in a compression state A, the top end of the compression part 20 is compressed to be within a distance A, the length of the compression part is 4.6mm, the required minimum force is 350gf, the compression part is continuously pressed to reach a compression state B, when the top end of the compression part 20 is compressed to be within a distance B, the length of the compression part is 3.65mm, the required minimum force is 550gf, the sound is not too loud when the function key is pressed, the feedback touch feeling can be ensured, the ring diameter is gradually increased, the number of turns of springs participating in work is reduced along with the increase of the deformation degree, the spring index is gradually reduced, the springs are harder and harder, the function key is prevented from being pressed excessively, and the service life and the use experience of the capacitance pen are prolonged; the top end face of the head coil and the bottom end face of the tail coil of the spiral coil 11 are both flat faces, and the head end of the head coil is connected with a folding part 12 with the length of 2.22 mm; the tail end of the folding part 12 faces downwards and is folded at an included angle of 90 degrees with the first turn of the spiral coil 11; when the pen is newly installed in the capacitance pen, a chute is arranged in the capacitance pen, and the folding part 12 is clamped in the chute, so that excessive displacement of the spring during subsequent work is avoided, and the stability is improved;

the center of the circuit contact part 20 is arranged on the central line of the spiral coil 11, is connected with the tail coil of the spiral coil 11, and comprises fan-shaped parts 21 which are arranged in bilateral symmetry and vertical parts 22 with the outer diameter of 2.15 mm; the sector part 21 is arranged downwards, and the top end of the sector part is connected with the vertical part 22; a bearing part 23 is formed between the vertical part and the fan-shaped part; the bottom end of the sector part 21 can move downwards when the compression part is compressed and touch a switching button on a circuit board of the capacitance pen, and compared with the conventional active capacitance pen, the capacitance pen does not need to be additionally provided with a transverse plate, so that the material cost is reduced.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A spring for a notebook electronic pen, characterized in that: comprises a compression part and a circuit contact part which are formed by winding stainless steel nickel-plated steel wires; the compression part comprises at least two coils positioned on the same central line; the spiral ring is of an annular structure, the first ring and the tail ring of the spiral ring are sequentially connected, the diameter of the ring is gradually increased, and a spiral ring through hole is surrounded in the middle; the top end face of the first coil and the bottom end face of the tail coil of the helicoidal coil are both flat faces, and the head end of the first coil is connected with a folding part; the tail end of the folded part is downward, and the folded part and the first coil of the spiral coil form an included angle of 90 degrees; the center of the circuit contact part is arranged on the central line of the spiral coil, is connected with the tail coil of the spiral coil and comprises a vertical part and a fan-shaped part which are symmetrically arranged left and right; the fan-shaped part is arranged downwards, and the top end of the fan-shaped part is connected with the vertical part; and a bearing part is formed between the vertical part and the fan-shaped part.

2. A spring for a notebook electronic pen according to claim 1, characterized in that: the total number of turns of the spiral ring is 4.75 turns, and the length of the compression part is 7 mm.

3. A spring for a notebook electronic pen according to claim 1, characterized in that: the total length of the compression part and the circuit contact part is 13.5 mm.

4. A spring for a notebook electronic pen according to claim 1, characterized in that: the outer diameter of the first coil of the spiral coil is 3.87mm, and the outer diameter of the tail coil of the spiral coil is 7.2 mm.

5. A spring for a notebook electronic pen according to claim 1, characterized in that: the diameters of the spring wires of the compression part and the circuit contact part are 0.5 mm.

6. A spring for a notebook electronic pen according to claim 1, characterized in that: the outer diameter of the vertical part is 2.15 mm.

7. A spring for a notebook electronic pen according to claim 1, characterized in that: the length of the folded part is 2.22 mm.