CN217506505U - Electronic pen and pen point - Google Patents

Abstract

The utility model discloses an electronic pen and nib, wherein the nib includes: the pen ball, the support frame and the elastic piece; the end part of the supporting frame is provided with an accommodating cavity for accommodating the pen beads, the front end of the accommodating cavity is provided with a ball socket matched with the pen beads, the ball socket is provided with a pocket hole for exposing the pen beads, and the tail part of the accommodating cavity is provided with a gap for retracting the pen beads; because the front end of the containing cavity is provided with the ball socket which is matched with the pen ball, the ball socket is contacted with the pen ball to form a spherical pair, and the friction force in the rolling process of the pen ball is reduced; when the pressure that the ball is stressed exceeds the elasticity of elastic component, through retracting the normal pressure that makes the ball bear the same with the elasticity of elastic component all the time to the space in, thereby through the upper limit of restriction normal pressure control frictional force, avoid the ball to damage the touch screen because the dynamics of stippling in the twinkling of an eye is too big simultaneously, play overload protection's effect, after external pressure is less than elastic component elasticity, the ball can reset in the twinkling of an eye, the smoothness of guarantee writing.

Description

Electronic pen and pen point

Technical Field

The utility model relates to a touch-control field, concretely relates to electronic pen and nib.

Background

With the development of mobile terminals such as smart phones and tablet computers, electronic pen accessories related to the mobile terminals are also emerging, and touch input can be better performed through an electronic pen. The existing electronic pen mainly comprises a pen holder and a pen point arranged at the end part of the pen holder, and touch operation is performed by simulating fingers through coupling between the pen point and a touch screen. The electronic pen comprises an active electronic pen and a passive electronic pen, the pen point of the active electronic pen is electrically connected with the pen core in the pen holder, and the pen core is provided with a touch circuit which can actively transmit an electric signal to the touch screen through the pen point to realize the coupling of the pen point and the touch screen. When the passive electronic pen is used, the static electricity of a human body is transmitted to the pen head through the pen holder, and then the pen head is coupled with a touch screen by means of the static electricity of the human body.

In order to make writing smooth, a part of pen points are set to be spherical pen balls, the spherical pen balls roll continuously like a ball pen during writing, and compared with an electronic pen with a non-spherical pen point, the electronic pen changes sliding friction into rolling friction, so that the friction force between the electronic pen and a screen is reduced to a great extent, and the writing hand feeling is smoother.

However, since the electronic pen is not a ballpoint pen and the ball is not lubricated by ink, the surface of the ball is very easily abraded in long-term use, the abraded ball may scratch a screen, and the ball may be reduced in size due to surface abrasion and then fall off from a pen point.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the problem of electron pen ball easy wearing and tearing among the prior art.

According to the first aspect of the application, for solving above-mentioned technical problem, the utility model discloses an electronic pen nib, include:

the pen bead is arranged at the end part of the pen point and used for being coupled with the touch screen so as to realize a writing function;

the end part of the supporting frame is provided with an accommodating cavity for accommodating the pen ball, the front end of the accommodating cavity is provided with a ball socket which is matched with the pen ball, the ball socket is provided with a pocket hole for exposing part of the pen ball, and the tail part of the accommodating cavity is provided with a gap for retracting the pen ball;

the elastic piece is used for providing pressure required by the attachment of the ball and the surface of the ball socket and storing energy when the ball retracts, so that restoring force required by the return of the ball to the position of the pocket is provided.

As another improvement of this application electronic pen nib, wherein, the elastic component is the spring, be equipped with the intercommunication in the support frame the passageway in pocket, the spring is located in the passageway, elastic component one end with the ball butt.

As another improvement of the electronic pen point, the elastic element is a spring piece arranged at the tail of the accommodating cavity, the root of the spring piece is fixedly connected with the inner wall of the accommodating cavity, and the end of the spring piece is abutted to the pen ball.

As another improvement of the electronic pen point, the elastic member is a spring, and a cross section of one end of the spring, which is in contact with the ball, is a curved surface matched with the surface of the ball.

As another improvement of the electronic pen nib, the electronic pen nib further comprises a movable terminal, the movable terminal is electrically connected with the pen ball, the movable terminal is accommodated in the support frame, an outlet through which the head of the movable terminal extends is formed in the tail of the support frame, and the head of the movable terminal is electrically connected with a conducting piece outside the electronic pen nib;

the elastic piece is arranged in the support frame and used for providing power for the movable terminal to move towards the outlet direction.

As a further improvement of the electronic pen point, the movable terminal is electrically connected with the pen ball through the elastic piece and/or the supporting frame.

As another improvement of this application electronic pen nib, wherein, the movable terminal afterbody is equipped with the tail-heading, the tail-heading restriction the movable terminal afterbody passes the export.

As another improvement of this application electronic pen nib, wherein, still include and be used for fixing the pen shell of support frame, the support frame surface is equipped with the card protruding, the pen shell inner chamber be equipped with the card of protruding looks adaptation of card is concave.

According to the second aspect of the application, this application still discloses another kind of electronic pen, including the pen-holder, and set up in the nib of pen-holder one end, the nib be above the nib.

According to the third aspect of the application, this application still discloses another kind of electronic pen, including the pen-holder, and set up in the nib of pen-holder one end, the nib be above the nib, the electronic pen is passive form electronic pen, the conducting element with the pen-holder electricity is connected, the pen-holder surface is regional electrically conductive at least partially.

According to the fourth aspect of the application, this application still discloses another kind of electronic pen, including the pen-holder, and set up in the nib of pen-holder one end, the nib be more than the nib, the electronic pen is active electronic pen, the inside refill that is used for bearing touch-control circuit that is equipped with of electronic pen, the conducting member with the refill electricity is connected.

According to the fifth aspect of the application, the application still discloses another kind of electronic pen, including the pen-holder, and set up in the nib of pen-holder one end, the elastic component for set up in hold the shell fragment of chamber afterbody, the shell fragment root with hold intracavity wall fixed connection, the tip with the ball-pen butt, the electronic pen is passive form electronic pen, the shell fragment with the support frame electricity is connected, the support frame with the pen-holder electricity is connected, the pen-holder surface is at least partly regional electrically conductive.

The ball socket matched with the pen ball is arranged at the front end of the accommodating cavity, and the ball socket is contacted with the pen ball to form a spherical pair, so that the friction force in the rolling process of the pen ball is reduced; when the pressure that the ball is stressed exceeds the elasticity of elastic component, through retracting the normal pressure that makes the ball bear the same with the elasticity of elastic component all the time to the space in, thereby through the upper limit of restriction normal pressure control frictional force, avoid the ball to damage the touch screen because the dynamics of stippling in the twinkling of an eye is too big simultaneously, play overload protection's effect, after external pressure is less than elastic component elasticity, the ball can reset in the twinkling of an eye, the smoothness of guarantee writing.

Because the movable terminal can move in the support frame, under the effect of elastic component, can ensure that free terminal and guide piece are in the contact state all the time like this, promptly, through the flexible removal of the relative guide piece of free terminal, the not enough of product assembly precision and machining precision have been waited for to mend, therefore, when having improved electronic pen conductivity stability, can reduce the assembly degree of difficulty of product and the machining precision of spare part again.

Drawings

Fig. 1 is a schematic view of an overall structure of an electronic pen according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of an electronic pen according to an embodiment of the present invention;

FIG. 3 is a perspective view of the supporting frame in the embodiment of the present invention;

fig. 4 is a cross-sectional view of the supporting frame in the embodiment of the present invention;

fig. 5 is a sectional view of the supporting frame after being assembled according to the embodiment of the present invention;

FIG. 6 is a sectional view of an assembled support frame according to another embodiment of the present invention

FIG. 7 is a cross-sectional view of an assembled support frame according to another embodiment of the present invention

FIG. 8 is a three-dimensional cross-sectional view of the pen tip in the embodiment of the present invention;

fig. 9 is a two-dimensional cross-sectional view of the pen tip in the embodiment of the present invention.

The following are some reference numerals and corresponding meanings in this embodiment:

a penholder 1 and a refill 10;

the pen point 2, the ball 21, the support frame 22, the accommodating cavity 220, the ball socket 221, the pocket 222, the channel 223, the clamping protrusion 224, the outlet 225, the elastic piece 23A, the pen shell 24, the clamping recess 240, the movable terminal 25, the tail holder 250 and the guide piece 26.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the described features, operations, or characteristics may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

Example one

Referring to fig. 1-4, the electronic pen disclosed in the present invention includes a pen holder 1, a pen point 2 disposed at one end of the pen holder 1, the pen point 2 including a ball 21, a support frame 22 and an elastic member 23. The ball 21 is disposed at an end of the pen head 2, and the ball 21 is used for coupling with a touch screen to implement a writing function. The end of the supporting frame 22 is provided with an accommodating cavity 220 for accommodating the ball 21, a ball socket 221 is formed at the front end of the accommodating cavity 220, the inner surface of the ball socket 221 is a spherical surface matched with the surface of the ball 21, a pocket 222 for exposing a part of the ball 21 is formed in the center of the ball socket 221, and a part of the spherical crown of the ball 21 can protrude out of the supporting frame 22 through the pocket 222 so as to be in contact with a touch screen. The tail of the containing cavity 220 is provided with a gap for the ball 21 to retract. The elastic member 23 is used for providing a pressure required by the ball 21 to be attached to the surface of the ball socket 221, and accumulating energy when the ball 21 retracts, so as to provide a restoring force required by the ball 21 to return to the pocket position.

Because the front end of the accommodating cavity 220 is provided with the ball socket 221 matched with the ball 21, the ball socket 221 contacts with the ball 21 to form a spherical pair, so that the resistance of the ball 21 in rolling is reduced, and the friction force of the ball 21 in rolling is reduced; when the ball 21 is pressed to exceed the pressure applied by the elastic member 23, the ball 21 will retract into the gap, and the elastic member 23 starts to store energy in the process. This allows the ball 21 to be always subjected to a positive pressure equivalent to the elastic force generated by the elastic member 23, so that the maximum positive pressure to which the ball 21 is subjected is limited by the elastic member 23, and the upper limit of the frictional force is controlled by limiting the positive pressure.

In addition, the ball 23 is in electrical contact with the touch screen, the contact surface is small, the pressure intensity is greatly increased due to instant pressure, the touch screen is prevented from being damaged due to excessive force of instant stippling while the positive pressure is limited, the overload protection effect is achieved, when the external pressure is smaller than the elastic force of the elastic piece 23, the elastic piece 23 releases elastic potential energy, the ball 21 is instantly reset under the action of the elastic piece 23, and the writing continuity and smoothness are guaranteed.

Furthermore, the elastic element 23 is a spring, a passage 223 communicating with the pocket 222 is arranged in the support frame 22, the spring is located in the passage 223, one end of the spring is abutted against the ball 21, and the other end of the spring is directly or indirectly abutted against the support frame 22. The section of one end of the spring, which is contacted with the ball 21, is a curved surface matched with the surface of the ball 21, so that the ball 21 is prevented from being scratched, and the friction force between the ball and the ball can be reduced.

Of course, in other embodiments of the present application, the elastic element 23 is not limited to a spring, and may be other components with elastic deformation capability, such as a conductive adhesive stick. As shown in fig. 5 and 6, the elastic element 23 may also be a spring plate 23A disposed at the tail of the accommodating cavity 220, the root of the spring plate 23A is fixedly connected to the inner wall of the accommodating cavity 220, and the end thereof abuts against the ball 21. The spring piece 23A is in a cambered surface matched with the pen ball 21.

The first embodiment of the present application can be applied to both an active electronic pen and a passive electronic pen, wherein when the passive electronic pen is applied, the elastic piece 23A can be connected to the pen holder 1 through the supporting frame 22, and when the passive electronic pen is applied, the ball 21 is electrically connected to the pen holder 1 through the elastic piece 23 and/or the elastic piece 23A and/or the supporting frame 22. When the active electronic pen is used, the ball 21 is electrically connected to the pen core 10 through the spring and/or the support frame 22.

Further, as shown in fig. 8-9, the pen head 2 further includes a pen shell 24 for fixing the support 22, a radially protruding locking protrusion 224 is disposed on an outer surface of the support 22, and a locking recess 240 adapted to the locking protrusion 224 is disposed in an inner cavity of the pen shell 24. The engagement between the locking protrusion 224 and the locking recess 240 prevents the supporting frame 22 from being removed from the pen casing 24. The pen casing 24 may adopt a snap-fit structure including an upper casing and a lower casing, and the supporting frame 22 is fixed therein. Of course, the pen casing 24 and the supporting frame 22 may be formed as a single body by injection molding directly after the supporting frame 22 is assembled. The pen shell 24 is connected with the pen holder 1 through threads, so that the complete electronic pen is formed.

Example two

In either active or passive mode, the pen tip is electrically connected to a conducting member outside the pen tip through a terminal, and the difference is that in the case of the active electronic pen, the conducting member is electrically connected to the pen core, and the conducting member of the passive electronic pen is electrically connected to the pen holder.

Parts of the existing electronic pen are highly modularized, and can be quickly assembled and disassembled, so that the production efficiency is improved, and the maintenance is convenient. Therefore, the terminal at one end of the pen head and the guide at one end of the pen holder are usually two separated parts, and the terminal and the guide are electrically connected through surface contact after the pen head and the pen holder are assembled. This is very likely to cause insufficient precision of assembly or poor contact between the two due to low processing precision of parts, resulting in insufficient stability of conduction. Increasing the precision of the assembly process or increasing the machining precision of the parts can greatly increase the production cost of the product, so that the problem becomes a common problem which besets the industry for a long time.

In order to solve the problem, the second embodiment of the present application also discloses another electronic pen, and the second embodiment can be implemented independently, or can be used as a further improvement scheme on the basis of the first embodiment. Specifically, the second embodiment of the present application discloses an electronic pen, as shown in fig. 1-2 and 8-9, a pen point of the electronic pen includes a pen holder 1 and a pen point 2 disposed at one end of the pen holder 1, and the pen point 2 includes a contact, a support frame 22, an elastic member 23, and a movable terminal 25. Wherein the contact is used for coupling with a touch screen so as to realize a writing function. The contact member in this embodiment is the ball 23 in one embodiment, but of course, in other embodiments of the present application, the contact member may also be other structures, such as a disk structure, or a conductive cloth tip. As shown in fig. 3-5, the movable terminal 25 is electrically connected to the ball 23, the movable terminal 25 is accommodated in the supporting frame 22, the tail of the supporting frame 22 is provided with an outlet 225 for the head of the movable terminal 25 to extend out, and the head of the movable terminal 25 is electrically connected to the conducting member 26 outside the pen point 2. The elastic member 23 is disposed in the supporting frame 22, and one end of the elastic member 23 abuts against the ball 21 and the other end abuts against the movable terminal 25, thereby providing a power for moving the movable terminal 25 in the direction of the outlet 225.

When the guide member 26 is extended too long, the movable terminal 25 will be pushed and retracted into the supporting frame 22 to avoid the failure of normal assembly, otherwise, when the guide member 26 is too short, the movable terminal 25 will move to the outside of the supporting frame 22 under the driving of the elastic member 23, thereby always keeping the electrical contact with the guide member 26.

According to the electronic pen disclosed by the embodiment, the movable terminal can move in the support frame, so that the free terminal and the guide piece can be always in a contact state under the action of the elastic piece, namely, the defects of product assembling precision and machining precision are compensated through the telescopic movement of the free terminal relative to the guide piece, and therefore, the stability of the conduction capability of the electronic pen is improved, and meanwhile, the assembling difficulty of a product and the machining precision of parts can be reduced.

Further, as shown in fig. 5, the elastic element 23 in this embodiment is a spring, a passage 223 communicating with the pocket 222 is disposed in the supporting frame 22, the passage 223 is respectively communicated with the accommodating cavity 220 and the outlet 225, the spring is disposed in the passage 223, one end of the spring abuts against the ball 21, and the other end abuts against the tail of the movable terminal 25.

As shown in fig. 5, the tail of the movable terminal 25 is provided with a tail head 250, and the outer diameter of the tail head 250 is larger than the inner diameter of the outlet 225, so that the tail head 250 has a limiting function to limit the tail of the movable terminal 25 from passing through the outlet 225, and the movable terminal 25 is prevented from moving out of the supporting frame 22. The head surface of the movable terminal 25 is a cambered surface, so that the design with edges is avoided, and the guide member 26 is prevented from being scratched, so that the conductive performance of the guide member is prevented from being damaged.

The movable terminal 25 may be electrically connected to the contact member through the elastic member 23, may be electrically connected to the contact member through the support frame 22, and may be simultaneously electrically connected to the contact member through the elastic member 23 and the support frame 22.

The electronic pen disclosed in this embodiment may be an active electronic pen or a passive electronic pen. When the electronic pen is an active electronic pen, the pen core 10 for carrying a touch circuit is disposed inside the electronic pen, and the guide member 26 is electrically connected to the pen core 10. The touch control circuit of the active electronic pen is known in the prior art, and is not described herein. In the case of a passive electronic pen, the conductive member 26 is electrically connected to the pen shaft 1, and at least a portion of the surface of the pen shaft 1 is electrically conductive, so that the pen shaft 1 is electrically connected to human body when a user holds the pen with fingers.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims (12)

1. An electronic pen nib, comprising:

the pen bead is arranged at the end part of the pen point and used for being coupled with a touch screen so as to realize a writing function;

the end part of the supporting frame is provided with an accommodating cavity for accommodating the pen ball, the front end of the accommodating cavity is provided with a ball socket matched with the pen ball, the ball socket is provided with a pocket hole for exposing part of the pen ball, and the tail part of the accommodating cavity is provided with a gap for retracting the pen ball;

the elastic piece is used for providing pressure required by the attachment of the ball and the surface of the ball socket and storing energy when the ball retracts, so that restoring force required by the return of the ball to the position of the pocket is provided.

2. The tip of an electronic pen as claimed in claim 1, wherein the elastic member is a spring, a channel communicating with the pocket is provided in the holder, the spring is located in the channel, and one end of the spring abuts against the ball.

3. The electronic pen nib of claim 1, wherein the elastic element is a spring piece disposed at the tail of the accommodating cavity, the root of the spring piece is fixedly connected with the inner wall of the accommodating cavity, and the end of the spring piece abuts against the ball.

4. The tip of the electronic pen as claimed in claim 1 or 2, wherein the elastic member is a spring, and the section of the end of the spring contacting the ball is a curved surface fitting the surface of the ball.

5. The electronic pen nib of claim 1, further comprising a movable terminal, wherein the movable terminal is electrically connected to the ball, the movable terminal is accommodated in the supporting frame, an outlet is provided at the tail of the supporting frame for the head of the movable terminal to extend out, and the head of the movable terminal is electrically connected to a conducting member outside the nib;

the elastic piece is arranged in the support frame and used for providing power for the movable terminal to move towards the outlet direction.

6. The electronic pen nib of claim 5, wherein the movable terminal is electrically connected to the ball through the elastic member and/or the support.

7. The electronic pen nib of claim 5, wherein the movable terminal tail is provided with a tail-upset that restricts the movable terminal tail from passing through the exit.

8. The electronic pen nib of any one of claims 1-3, further comprising a shell for securing the support, wherein the support has a protrusion on an outer surface thereof, and the shell has a cavity adapted to the protrusion.

9. An electronic pen, characterized in that, it comprises a pen holder, and a pen head arranged at one end of the pen holder, the pen head is the pen head of claims 1-8.

10. An electronic pen, characterized in that, it includes a pen holder, and a pen head arranged at one end of the pen holder, the pen head is the pen head of claims 5-7, the electronic pen is a passive electronic pen, the conducting element is electrically connected with the pen holder, at least part of the surface of the pen holder is electrically conductive.

11. An electronic pen, characterized in that, includes a pen holder, and a pen head arranged at one end of the pen holder, the pen head is the pen head of claims 5-7, the electronic pen is an active electronic pen, a pen core for bearing a touch circuit is arranged in the electronic pen, and the guide member is electrically connected with the pen core.

12. An electronic pen, characterized in that, includes the pen holder, and sets up in the nib of pen holder one end, the nib is the nib of claim 3, the electronic pen is passive electronic pen, the shell fragment with the support frame electricity is connected, the support frame with the pen holder electricity is connected, at least some regions of pen holder surface are electrically conductive.

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