CN210666711U

CN210666711U - Pen head mechanism of electronic pen

Info

Publication number: CN210666711U
Application number: CN201921896058.3U
Authority: CN
Inventors: 黄启录; 曹新欣
Original assignee: Shenzhen Zhicheng Lichuang Technology Co ltd
Current assignee: Shenzhen Zhicheng Lichuang Technology Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-06-02
Anticipated expiration: 2029-11-05

Abstract

The embodiment of the utility model discloses written mechanism of electronic pen, including the casing and establish the circuit board in the casing, housing end is equipped with the hole, and the downthehole nib that is equipped with still including switching on the mounting, switches on mounting one end and welds on the circuit board, and the nib with switch on mounting other end detachable and be connected, switch on the mounting and switch on nib and circuit board. The utility model discloses simple structure pulls out the power relative change less, makes to have good switching on between nib and the circuit board.

Description

Pen head mechanism of electronic pen

Technical Field

The utility model relates to an electronic pen technical field especially relates to a written mechanism of electronic pen.

Background

In the prior art, a plastic pen point is mostly in hard contact with a pen point support, and the pen point support is in press-contact connection with a spring welded on a circuit board. The plastic pen point has the defects that the pulling-out force of the plastic pen point is large, the plastic pen point is easy to wear after being pulled out and inserted for many times, poor contact is caused after the plastic pen point is worn, and the reliable connection of the pen point and the circuit board cannot be realized.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve provides a written mechanism of electronic pen to make the reliable connection of realizing nib and circuit board make things convenient for the dismouting nib simultaneously.

In order to solve the technical problem, the embodiment of the utility model provides a written mechanism of electronic pen, including the casing and establish the circuit board in the casing, housing end is equipped with the hole, is equipped with the nib in the hole, still including switching on the mounting, switches on mounting one end and welds on the circuit board, and the nib is connected with switching on mounting other end detachable, switches on the mounting and switches on nib and circuit board.

Further, switch on the mounting and be pipe diameter and nib afterbody assorted switch on the spring, the cross section that switches on the spring is the rectangle, and the one end that switches on the spring is welded on the circuit board, and the other end is free.

Further, the conducting fixing piece is a metal clip.

Furthermore, the pen point is formed by conducting plastic injection molding.

Furthermore, the pen point consists of a metal rod and a pen point cap sleeved on the head of the metal rod, and the pen point cap is made of conductive plastic.

Furthermore, the pen point consists of a metal rod and a pen point cap sleeved on the head of the metal rod, the pen point cap is made of insulating plastic, a shielding ground covering the metal rod is arranged on the shell, and a gap with a preset width is kept between the metal rod and the shielding ground.

The utility model has the advantages that: the utility model has the advantages that the conducting fixing piece is accurately inserted into the conducting fixing piece through the guiding of the inner hole of the shell, one end of the conducting fixing piece is welded on the circuit board, and when the pen point is inserted into the conducting fixing piece, the conducting fixing piece is propped open and holds the fixed pen point tightly, so that the signal on the circuit board is conducted to the pen point through the conducting fixing piece; the utility model discloses simple structure pulls out the power relative change less, makes to have good switching on between nib and the circuit board.

Drawings

Fig. 1 is a structural diagram of a pen point mechanism of an electronic pen according to embodiment 1 of the present invention.

Fig. 2 is a partial structural view of a pen point mechanism of an electronic pen according to embodiment 1 of the present invention.

Fig. 3 is a structural view of an angle of a conduction spring according to embodiment 1 of the present invention.

Fig. 4 is a structural view of another angle of the conduction spring according to embodiment 1 of the present invention.

Fig. 5 is a structural diagram of a pen point mechanism of an electronic pen according to embodiment 2 of the present invention.

Fig. 6 is a three-dimensional structure diagram of the pen point according to the embodiment of the present invention.

Fig. 7 is a structural diagram of a pen point mechanism of an electronic pen according to embodiment 3 of the present invention.

Fig. 8 is a schematic structural view of the pen head according to the embodiment of the present invention.

Fig. 9 is a structural diagram of a pen point mechanism of an electronic pen according to embodiment 4 of the present invention.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict, and the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

In the embodiment of the present invention, if there is directional indication (such as upper, lower, left, right, front, and rear … …) only for explaining the relative position relationship between the components and the motion situation under a certain posture (as shown in the drawing), if the certain posture is changed, the directional indication is changed accordingly.

In addition, the descriptions of the first, second, etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 9, a pen head mechanism of an electronic pen according to an embodiment of the present invention includes a housing 10, a pen tip 20, a circuit board 30, and a conductive fixing member.

Nib 20 and circuit board 30 are disposed on nib 20 and circuit board 30 within housing 10. One end of the conduction fixing member is welded on the circuit board 30, the pen tip 20 is detachably connected with the other end of the conduction fixing member, and the conduction fixing member conducts the pen tip 20 and the circuit board 30.

Example 1: referring to fig. 1, the conducting fixing member is a conducting spring 31 having a pipe diameter matched with the tail of the pen tip 20, and the cross section of the conducting spring 31 is rectangular. One end of the conduction spring 31 is soldered to the circuit board 30, and the other end is free. Nib 20 is guided through the inner hole of housing 10 and is accurately inserted into rectangular conduction spring 31, and one end of rectangular conduction spring 31 is soldered to circuit board 30. When pen tip 20 is inserted into rectangular conduction spring 31, rectangular conduction spring 31 is spread and clasps pen tip 20, and pen tip 20 is elastically connected to rectangular spring, so that the signal on circuit board 30 is conducted to pen tip 20 through rectangular conduction spring 31.

Preferably, referring to fig. 2 to 4, the cross section of the conduction spring 31 is a rounded rectangle. The embodiment of the utility model provides an utilize the good resilience performance at the fillet of bending of the spring wire of conduction spring 31 of rectangle. When pen tip 20 is inserted into rectangular conduction spring 31, the rounded bent corners are deformed, the straight sides of rectangular conduction spring 31 are spread, and when pen tip 20 is removed, rectangular conduction spring 31 returns to its original state.

In one embodiment, the conductive fastener is a metal clip 32.

Example 2: referring to fig. 5 to 6, the pen tip 20 is formed by injection molding of conductive plastic. The embodiment of the utility model provides an utilize electrically conductive plastic injection moulding nib 20, give touch screen with the signal transmission of circuit board 30 ends. The embodiment of the utility model utilizes the characteristic that the plastic is easy to be injection molded and convenient to be processed, thereby reducing the cost; the plastic can be used for a long time by utilizing the wear resistance of the plastic, and the touch screen is not scratched by utilizing the low surface hardness of the plastic; by utilizing the compressibility of the plastic (i.e. the plastic elastically deforms under the action of the compressive stress, the compressive stress disappears, and the original state is restored), the pen tip 20 is reliably contacted with the metal clip 32 at the end of the circuit board 30, and the pen tip 20 is also convenient to pull and insert.

Example 3: referring to fig. 7 to 8, the nib 20 is composed of a metal rod 21 and a nib cap 22 covering the head of the metal rod 21, and the nib cap 22 is made of conductive plastic. The embodiment of the utility model provides an utilize the low contact impedance of metal rod 21 and metal clip 32, make the reliable connection of nib 20 and circuit board 30, give touch screen with stronger pen-end signal transmission, strengthened the structural strength of nib 20, output stronger signal, good user experience; the high structural strength of the metal is utilized to keep the pen tip 20 at a high rigidity; the touch screen can be used for a long time by using the wear resistance of the plastic, and the touch screen is not scratched by using the low surface hardness of the plastic.

Example 4: referring to fig. 8 to 9, the pen tip 20 is composed of a metal rod 21 and a pen tip cap 22 covering the head of the metal rod 21, the pen tip cap 22 is made of insulating plastic, a shielding ground 11 covering the metal rod 21 is disposed on the casing 10, and a gap with a predetermined width is maintained between the metal rod 21 and the shielding ground 11. The embodiment of the utility model provides an utilize the low contact impedance of metal rod 21 and metal clip 32, make the reliable connection of nib 20 and circuit board 30, give touch screen with stronger pen-end signal transmission, strengthened the structural strength of nib 20, output stronger signal, good user experience; the high structural strength of the metal is utilized to keep the pen tip 20 at a high rigidity; the plastic can be used for a long time by utilizing the wear resistance of the plastic, and the touch screen is not scratched by utilizing the low surface hardness of the plastic; by using the insulating property of the plastic, a gap is kept between the metal rod 21 and the shielding ground 11, thereby avoiding capacitive coupling.

As an embodiment, referring to fig. 6, the middle and the tail of the pen tip 20 are provided with a stopper groove for fixing and preventing slipping.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a written mechanism of electronic pen, includes the casing and establishes the circuit board in the casing, and the casing tip is equipped with the hole, and the downthehole nib that is equipped with, its characterized in that still including switching on the mounting, switches on mounting one end and welds on the circuit board, and the nib with switch on mounting other end detachable and be connected, switch on the mounting and switch on nib and circuit board.

2. The tip mechanism of electronic pen according to claim 1, wherein the conduction fixing member is a conduction spring having a pipe diameter matching with the tail of the tip, the cross section of the conduction spring is rectangular, one end of the conduction spring is soldered on the circuit board, and the other end is free.

3. The tip mechanism of an electronic pen according to claim 1, wherein the conductive fixing member is a metal clip.

4. The tip mechanism of an electronic pen according to any of claims 1-3, wherein the tip is injection molded from a conductive plastic.

5. The tip mechanism of an electronic pen according to any one of claims 1-3, wherein the tip is composed of a metal rod and a tip cap sleeved on a head of the metal rod, and the tip cap is made of conductive plastic.

6. The tip mechanism of an electronic pen according to any one of claims 1 to 3, wherein the tip is composed of a metal rod and a tip cap covering the head of the metal rod, the tip cap is made of insulating plastic, a shielding ground covering the metal rod is provided on the housing, and a gap of a predetermined width is maintained between the metal rod and the shielding ground.