A pen head and electronic pen

Abstract

The present invention provides a pen tip, wherein the pen tip is connected to an inner frame inside a pen body through a connecting part to achieve stability of the relative position of the pen tip and the pen body. At the same time, a pressure sensing part is arranged on the top of the pen tip. When the pen tip contacts the pressure sensing part under the action of an external force, the pressure sensing part can detect the pressure exerted on the pen tip, and then the pressure can be truly reflected on a touch device, forming a true original handwriting writing.

Description

Technical Field

[0001] The present application relates to the field of electronic accessories, and in particular to a pen tip and an electronic pen. Background Art

[0002] With the improvement of technology and quality of life, more and more smart devices are appearing in people's daily work and life, and touch devices are one of them. People can operate directly on the display screen through touch devices, without the need for a mouse or other devices for wired or wireless operation, which is convenient and fast. At the same time, writing devices that can write on touch devices have also emerged. People can write on touch devices as freely as using a pen by using writing devices.

[0003] Most current writing devices do not have pressure-sensing functions, so it is impossible to display real writing effects on touch devices, and complex writing functions cannot be realized, resulting in a low user experience. Summary of the invention

[0004] In order to solve one of the above technical problems, the present invention provides a pen head and an electronic pen.

[0005] A first aspect of an embodiment of the present invention provides a pen tip, which includes a nib portion, a connecting portion and a pressure-sensing portion, wherein the nib portion is connected to an inner frame inside a pen body through the connecting portion, the connecting portion includes a carrying tube and a connecting tube, the carrying tube is open at the bottom and closed at the top, the top edge of the carrying tube extends outward to make the carrying tube T-shaped, the pressure-sensing portion is arranged at the top of the T-shaped carrying tube, and the pressure-sensing portion is used to detect pressure information transmitted by the carrying tube, the connecting tube is sleeved on the carrying tube, the connecting tube is fixedly connected to the inner frame inside the pen body, the carrying tube can move up and down inside the connecting tube, when the carrying tube moves upward inside the connecting tube, the top of the carrying tube contacts the pressure-sensing portion, when the carrying tube moves downward inside the connecting tube, the bottom edge of the top of the carrying tube abuts against the top edge of the top of the connecting tube, one end of the nib portion is inserted into the interior of the carrying tube, and the other end of the nib portion is exposed to the outside of the pen body.

[0006] Preferably, a snap-in hole is provided on the side wall of the carrying tube, and a snap-in groove is provided on the pen tip portion. When the pen tip portion is inserted into the carrying tube, the snap-in groove corresponds to the snap-in hole. The connecting portion also includes a snap-in cylinder, which is sleeved on the carrying tube and located below the connecting cylinder. A snap-in protrusion is provided on the inner wall of the snap-in cylinder, and the snap-in protrusion is abutted against the snap-in groove of the pen tip portion through the snap-in hole.

[0007] Preferably, the clamping groove is an arc-shaped groove, and the end point of the clamping protrusion is processed with a chamfer that matches the clamping groove.

[0008] Preferably, an elastic component is provided between the connecting tube and the clamping tube, and the elastic component is compressed when the pen tip moves toward the pressure-sensing portion under the action of an external force, and pushes the pen tip back to an initial position when the pen tip is not acted upon by an external force.

[0009] Preferably, the elastic component is a spring, the spring is sleeved on the outside of the bearing portion, one end of the spring is fixedly connected to the connecting tube, and the other end of the spring is fixedly connected to the clamping tube.

[0010] A second aspect of an embodiment of the present invention provides an electronic pen, comprising a pen body, an inner frame and the pen tip as described in the first aspect of the embodiment of the present invention, wherein the inner frame is arranged inside the pen body and is used to carry a circuit board, the pen tip is arranged at the front end of the pen body, and a part of the pen tip is exposed to the outside of the pen body, and another part of the pen tip located inside the pen body is fixedly connected to the inner frame.

[0011] The beneficial effects of the present invention are as follows: the present invention connects the pen tip with the inner frame inside the pen body through the connecting part to achieve the stability of the relative position of the pen head and the pen body. At the same time, a pressure sensing part is arranged on the top of the pen tip. When the pen tip contacts the pressure sensing part under the action of external force, the pressure sensing part can detect the pressure on the pen tip, and then the pressure can be truly reflected on the touch device, forming a real original handwriting writing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of the pen tip according to Embodiment 1 of the present invention;

[0014] Figure 2 for Figure 1 Right view of;

[0015] Figure 3 for Figure 2 AA section view;

[0016] Figure 4 for Figure 3 A partial enlarged view of the middle M part;

[0017] Figure 5 This is a schematic diagram of the structure of the pen tip according to Embodiment 2 of the present invention;

[0018] Figure 6 for Figure 5 Right view of;

[0019] Figure 7 for Figure 6 BB section view;

[0020] Figure 8 for Figure 7 A partial enlarged view of the middle N part;

[0021] Fig. 9 This is a schematic diagram of the structure of the pen tip according to Embodiment 3 of the present invention;

[0022] Fig.10 for Fig. 9 Right view of;

[0023] Fig.11 for Fig.10 CC section view;

[0024] Fig.12 for Fig.11 A partial enlarged view of the middle P part;

[0025] Fig.13 This is a schematic diagram of the structure of the electronic pen described in Example 4 of the present invention.

[0026] Reference numerals:

[0027] 1. Pen tip, 2. Inner frame, 3. Pen body;

[0028] 1-1, pen tip, 1-2, connecting part, 1-3, pressure sensing part, 1-4, elastic component;

[0029] 1-2-1, bearing tube, 1-2-2, connecting tube, 1-2-3, clamping tube. DETAILED DESCRIPTION

[0030] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application are further described in detail in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Furthermore, in order to provide a clearer description and make it easier to understand the present application, the parts in the drawings are not drawn according to their relative sizes, and some sizes have been exaggerated compared to other related scales; irrelevant details are not fully drawn to simplify the drawings.

[0031] Example 1

[0032] like Figures 1 to 4As shown, this embodiment proposes a pen tip 1, which includes a pen tip portion 1-1, a connecting portion 1-2 and a pressure-sensitive portion 1-3. The pen tip portion 1-1 is connected to an inner frame 2 inside the pen body through the connecting portion 1-2, and the pressure-sensitive portion 1-3 is arranged at the top of the pen tip portion 1-1 for detecting the pressure transmitted by the pen tip portion 1-1.

[0033] Specifically, the pen tip 1 proposed in this embodiment is applied to an electronic pen and is an indispensable part of the electronic pen. The electronic pen generally includes two parts, the pen tip 1 and the pen body. A part of the pen tip 1 can be exposed outside the pen body so that the user can write on the touch device through the exposed part. The other part of the pen tip 1 is located inside the pen body and can be fixed to the pen body by connecting to the inner wall of the pen body or by setting an inner frame 2 inside the pen body.

[0034] Specifically, in this embodiment, an inner frame 2 is provided inside the pen body, and a circuit board can be carried in the inner frame 2, on which relevant electronic components capable of realizing the basic functions of the electronic pen are welded. The pen head 1 and the inner frame 2 are connected via a connecting portion 1-2. The connecting portion 1-2 includes a bearing tube 1-2-1 and a connecting tube 1-2-2. The bottom of the bearing tube 1-2-1 is open and the top is closed, and the overall shape is T-shaped. A pressure sensing portion 1-3 is provided on the top of the T-shaped bearing tube 1-2-1. The connecting tube 1-2-2 is sleeved on the bearing tube 1-2-1 so that the bearing tube 1-2-1 can move up and down inside the connecting tube 1-2-2. The connecting tube 1-2-2 is connected to the inner frame 2 inside the pen body. One end of the pen tip 1-1 is inserted into the inside of the bearing tube 1-2-1, and the other end is exposed to the outside of the pen body. The supporting tube 1-2-1 and the pen tip 1-1 can be interference fit, and ensure that the user can easily insert and remove the pen tip 1-1.

[0035] For the convenience of assembly and the stability of connection, in this embodiment, the cross-section of the connecting tube 1-2-2 can be L-shaped, and the L-shape can be decomposed into a vertical tube and a horizontal tube. The top lower edge of the T-shaped bearing tube 1-2-1 can be stuck on the top surface of the vertical tube. A mounting through hole is provided at a position corresponding to the inner tube and the connecting tube 1-2-2. The vertical tube part of the connecting tube 1-2-2 is inserted into the inner tube, and the upper surface of the horizontal tube part can be connected to the lower surface of the inner tube. The connection between the horizontal tube and the inner tube can be glue, screw connection, etc.

[0036] In the process of pressure detection, in order to keep the detection result accurate, it is necessary to ensure that the pen tip 1-1, the connecting part 1-2 and the pressure-sensing part 1-3 are in the same line, so that the overall pressure is more concentrated. In this embodiment, the pen tip 1-1 is inserted into the supporting tube 1-2-1 to ensure the collinearity between the pen tip 1-1 and the supporting tube 1-2-1; the connecting tube 1-2-2 is sleeved on the supporting tube 1-2-1 to ensure the collinearity between the connecting tube 1-2-2 and the supporting tube 1-2-1; in the above manner, the pen head 1 is arranged in a collinear manner from the end point of the pen tip 1-1 to the pressure-sensing part 1-3.

[0037] Example 2

[0038] like Figures 5 to 8 As shown, this embodiment proposes a pen tip 1, which includes a pen tip portion 1-1, a connecting portion 1-2 and a pressure-sensitive portion 1-3. The pen tip portion 1-1 is connected to an inner frame 2 inside the pen body through the connecting portion 1-2, and the pressure-sensitive portion 1-3 is arranged at the top of the pen tip portion 1-1 for detecting the pressure transmitted by the pen tip portion 1-1.

[0039] Specifically, the pen tip 1 proposed in this embodiment is applied to an electronic pen and is an indispensable part of the electronic pen. The electronic pen generally includes two parts, the pen tip 1 and the pen body. A part of the pen tip 1 can be exposed outside the pen body so that the user can write on the touch device through the exposed part. The other part of the pen tip 1 is located inside the pen body and can be fixed to the pen body by connecting to the inner wall of the pen body or by setting an inner frame 2 inside the pen body.

[0040] Specifically, in this embodiment, an inner frame 2 is provided inside the pen body, and a circuit board can be carried in the inner frame 2, on which relevant electronic components capable of realizing the basic functions of the electronic pen are welded. The pen head 1 and the inner frame 2 are connected via a connecting portion 1-2. The connecting portion 1-2 includes a bearing tube 1-2-1 and a connecting tube 1-2-2. The bottom of the bearing tube 1-2-1 is open and the top is closed, and the overall shape is T-shaped. A pressure sensing portion 1-3 is provided on the top of the T-shaped bearing tube 1-2-1. The connecting tube 1-2-2 is sleeved on the bearing tube 1-2-1 so that the bearing tube 1-2-1 can move up and down inside the connecting tube 1-2-2. The connecting tube 1-2-2 is connected to the inner frame 2 inside the pen body. One end of the pen tip 1-1 is inserted into the inside of the bearing tube 1-2-1, and the other end is exposed to the outside of the pen body.

[0041] More specifically, a snap-in hole is provided on the side wall of the carrier tube 1-2-1, and a snap-in groove is provided on the nib portion 1-1. When the nib portion 1-1 is inserted into the carrier tube 1-2-1, the snap-in hole can correspond to the snap-in groove. A snap-in tube 1-2-3 is also sleeved on the carrier tube 1-2-1, and the snap-in tube 1-2-3 is located below the connecting tube 1-2-2. A snap-in protrusion extending laterally is provided on the inner wall of the snap-in tube 1-2-3. When the nib portion 1-1 is inserted into the inner wall of the carrier tube 1-2-1, the snap-in protrusion can pass through the snap-in hole and abut against the snap-in groove of the nib portion 1-1, thereby fixing the nib portion 1-1 in the carrier tube 1-2-1 by snapping, thereby preventing the nib portion 1-1 from falling off from the carrier tube 1-2-1.

[0042] Since the tip of the pen tip 1-1 will continuously contact and rub against the touch device during use by the user, it will wear out or even break after long-term use. Therefore, in order to meet the needs of users, the pen tip 1-1 needs to be replaced. In this embodiment, although the pen tip 1-1 is fixed in the carrier tube 1-2-1 by snapping, the snapping groove can be set to an arc-shaped groove, and the end point of the snapping protrusion is processed with a chamfer that matches the snapping groove. The arc-shaped groove surface and the chamfer of the snapping protrusion make it easy for the user to pull the pen tip 1-1 out of the carrier tube 1-2-1, and at the same time, the pen tip 1-1 will not fall off from the carrier tube 1-2-1 without the action of external force.

[0043] For the convenience of assembly and the stability of connection, in this embodiment, the cross-section of the connecting tube 1-2-2 can be L-shaped, and the L-shape can be decomposed into a vertical tube and a horizontal tube. The top lower edge of the T-shaped bearing tube 1-2-1 can be stuck on the top surface of the vertical tube. A mounting through hole is provided at a position corresponding to the inner tube and the connecting tube 1-2-2. The vertical tube part of the connecting tube 1-2-2 is inserted into the inner tube, and the upper surface of the horizontal tube part can be connected to the lower surface of the inner tube. The connection between the horizontal tube and the inner tube can be glue, screw connection, etc.

[0044] In the process of pressure detection, in order to keep the detection result accurate, it is necessary to ensure that the pen tip 1-1, the connecting part 1-2 and the pressure-sensing part 1-3 are in the same line, so that the overall pressure is more concentrated. In this embodiment, the pen tip 1-1 is inserted into the supporting tube 1-2-1 to ensure the collinearity between the pen tip 1-1 and the supporting tube 1-2-1; the connecting tube 1-2-2 is sleeved on the supporting tube 1-2-1 to ensure the collinearity between the connecting tube 1-2-2 and the supporting tube 1-2-1; in the above manner, the pen head 1 is arranged in a collinear manner from the end point of the pen tip 1-1 to the pressure-sensing part 1-3.

[0045] Example 3

[0046] like Figures 9 to 12As shown, this embodiment proposes a pen tip 1, which includes a pen tip portion 1-1, a connecting portion 1-2 and a pressure-sensitive portion 1-3. The pen tip portion 1-1 is connected to an inner frame 2 inside the pen body through the connecting portion 1-2, and the pressure-sensitive portion 1-3 is arranged at the top of the pen tip portion 1-1 for detecting the pressure transmitted by the pen tip portion 1-1.

[0047] Specifically, the pen tip 1 proposed in this embodiment is applied to an electronic pen and is an indispensable part of the electronic pen. The electronic pen generally includes two parts, the pen tip 1 and the pen body. A part of the pen tip 1 can be exposed outside the pen body so that the user can write on the touch device through the exposed part. The other part of the pen tip 1 is located inside the pen body and can be fixed to the pen body by connecting to the inner wall of the pen body or by setting an inner frame 2 inside the pen body.

[0048] Specifically, in this embodiment, an inner frame 2 is provided inside the pen body, and a circuit board can be carried in the inner frame 2, on which relevant electronic components capable of realizing the basic functions of the electronic pen are welded. The pen head 1 and the inner frame 2 are connected via a connecting portion 1-2. The connecting portion 1-2 includes a bearing tube 1-2-1 and a connecting tube 1-2-2. The bottom of the bearing tube 1-2-1 is open and the top is closed, and the overall shape is T-shaped. A pressure sensing portion 1-3 is provided on the top of the T-shaped bearing tube 1-2-1. The connecting tube 1-2-2 is sleeved on the bearing tube 1-2-1 so that the bearing tube 1-2-1 can move up and down inside the connecting tube 1-2-2. The connecting tube 1-2-2 is connected to the inner frame 2 inside the pen body. One end of the pen tip 1-1 is inserted into the inside of the bearing tube 1-2-1, and the other end is exposed to the outside of the pen body.

[0049] More specifically, a snap-in hole is provided on the side wall of the carrier tube 1-2-1, and a snap-in groove is provided on the nib portion 1-1. When the nib portion 1-1 is inserted into the carrier tube 1-2-1, the snap-in hole can correspond to the snap-in groove. A snap-in tube 1-2-3 is also sleeved on the carrier tube 1-2-1, and the snap-in tube 1-2-3 is located below the connecting tube 1-2-2. A snap-in protrusion extending laterally is provided on the inner wall of the snap-in tube 1-2-3. When the nib portion 1-1 is inserted into the inner wall of the carrier tube 1-2-1, the snap-in protrusion can pass through the snap-in hole and abut against the snap-in groove of the nib portion 1-1, thereby fixing the nib portion 1-1 in the carrier tube 1-2-1 by snapping, thereby preventing the nib portion 1-1 from falling off from the carrier tube 1-2-1.

[0050] Since the tip of the pen tip 1-1 will continuously contact and rub against the touch device during use by the user, it will wear out or even break after long-term use. Therefore, in order to meet the needs of users, the pen tip 1-1 needs to be replaced. In this embodiment, although the pen tip 1-1 is fixed in the carrier tube 1-2-1 by snapping, the snapping groove can be set to an arc-shaped groove, and the end point of the snapping protrusion is processed with a chamfer that matches the snapping groove. The arc-shaped groove surface and the chamfer of the snapping protrusion make it easy for the user to pull the pen tip 1-1 out of the carrier tube 1-2-1, and at the same time, the pen tip 1-1 will not fall off from the carrier tube 1-2-1 without the action of external force.

[0051] In addition, this embodiment also provides an elastic component 1-4 between the connecting tube 1-2-2 and the clamping tube 1-2-3. The elastic component 1-4 can be compressed when the pen tip 1-1 moves toward the pressure-sensitive portion 1-3 under the action of external force, and push the pen tip 1-1 back to the initial position when the pen tip 1-1 is not acted upon by external force. The elastic component 1-4 can be made of elastic materials such as springs and silicone. In this way, when the electronic pen moves within a spatial range and the pen tip 1-1 is not acted upon by external force, the pen tip 1-1 will not shake in the length direction of the electronic pen, thereby affecting the user's use.

[0052] For the convenience of assembly and the stability of connection, in this embodiment, the cross-section of the connecting tube 1-2-2 can be L-shaped, and the L-shape can be decomposed into a vertical tube and a horizontal tube. The top lower edge of the T-shaped bearing tube 1-2-1 can be stuck on the top surface of the vertical tube. A mounting through hole is provided at a position corresponding to the inner tube and the connecting tube 1-2-2. The vertical tube part of the connecting tube 1-2-2 is inserted into the inner tube, and the upper surface of the horizontal tube part can be connected to the lower surface of the inner tube. The connection between the horizontal tube and the inner tube can be glue, screw connection, etc.

[0053] In the process of pressure detection, in order to keep the detection result accurate, it is necessary to ensure that the pen tip 1-1, the connecting part 1-2 and the pressure-sensing part 1-3 are in the same line, so that the overall pressure is more concentrated. In this embodiment, the pen tip 1-1 is inserted into the supporting tube 1-2-1 to ensure the collinearity between the pen tip 1-1 and the supporting tube 1-2-1; the connecting tube 1-2-2 is sleeved on the supporting tube 1-2-1 to ensure the collinearity between the connecting tube 1-2-2 and the supporting tube 1-2-1; in the above manner, the pen head 1 is arranged in a collinear manner from the end point of the pen tip 1-1 to the pressure-sensing part 1-3.

[0054] Example 4

[0055] like Fig.13As shown, this embodiment provides an electronic pen, which includes a pen body 3, an inner frame and a pen head 1. The inner frame is arranged inside the pen body 3 and is used to carry a circuit board. The pen head 1 is arranged at the front end of the pen body 3, and a part of the pen head 1 is exposed outside the pen body 3. The other part of the pen head 1 located inside the pen body 3 is fixedly connected to the inner frame.

[0056] Specifically, the pen tip 1 proposed in this embodiment can refer to the contents described in Example 1 or Example 2, and will not be described in detail in this embodiment. The pen body 3 can be in a flat, cylindrical or triangular shape, etc., which is not specifically limited in this embodiment. The tip of the pen tip of the pen tip 1 can be in a straight line, conical or circular shape, etc., to make the electronic pen more beautiful as a whole, which is not specifically limited in this embodiment.

[0057] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A pen tip, characterized in that: The pen tip comprises a nib, a connecting portion and a pressure-sensing portion, wherein the nib is connected to an inner frame inside the pen body through the connecting portion, the connecting portion comprises a bearing tube and a connecting tube, the bearing tube is open at the bottom and closed at the top, the top edge of the bearing tube extends outwards to make the bearing tube T-shaped, the pressure-sensing portion is arranged on the top of the T-shaped bearing tube, the pressure-sensing portion is used to detect pressure information transmitted by the bearing tube, the connecting tube is sleeved on the bearing tube, the connecting tube is fixedly connected to the inner frame inside the pen body, the inner frame is used to carry a circuit board, and the circuit board is welded with relevant electronic components that can realize the basic functions of the electronic pen; The cross section of the connecting tube is L-shaped, and the L-shape is decomposed into a vertical tube and a horizontal tube. The top lower edge of the T-shaped bearing tube is clamped on the top surface of the vertical tube. A mounting through hole is opened at a position of the inner frame corresponding to the connecting tube. The vertical tube part of the connecting tube is inserted into the mounting through hole of the inner frame, and the upper surface of the horizontal tube part is fixedly connected to the lower surface of the inner frame. The supporting tube can move up and down inside the connecting tube. When the supporting tube moves upward inside the connecting tube, the top of the supporting tube contacts the pressure sensing part. When the supporting tube moves downward inside the connecting tube, the lower edge of the top of the supporting tube abuts against the upper edge of the top of the connecting tube. One end of the pen tip is inserted into the interior of the supporting tube, and the other end of the pen tip is exposed to the outside of the pen body.

2. The writing head according to claim 1, characterized in that: A snap-in hole is provided on the side wall of the supporting tube, and a snap-in groove is provided on the pen tip. When the pen tip is inserted into the supporting tube, the snap-in groove corresponds to the snap-in hole. The connecting part also includes a snap-in cylinder, which is sleeved on the supporting tube and located below the connecting cylinder. A snap-in protrusion is provided on the inner wall of the snap-in cylinder, and the snap-in protrusion is abutted against the snap-in groove of the pen tip through the snap-in hole.

3. The writing head according to claim 2, characterized in that: The clamping groove is an arc-shaped groove, and the end point of the clamping protrusion is processed with a chamfer that matches the clamping groove.

4. The writing tip according to claim 2 or 3, characterized in that: An elastic component is arranged between the connecting tube and the clamping tube. The elastic component is compressed when the pen tip moves toward the pressure sensing part under the action of external force, and pushes the pen tip back to the initial position when the pen tip is not acted upon by external force.

5. The writing head according to claim 4, characterized in that: The elastic component is a spring, and the spring is sleeved on the outside of the bearing tube. One end of the spring is fixedly connected to the connecting tube, and the other end of the spring is fixedly connected to the clamping tube.

6. An electronic pen, characterized in that: The electronic pen comprises a pen body, an inner frame and a pen tip according to any one of claims 1 to 5, wherein the inner frame is arranged inside the pen body and is used to carry a circuit board, the pen tip is arranged at the front end of the pen body, and a part of the pen tip is exposed to the outside of the pen body, and another part of the pen tip located inside the pen body is fixedly connected to the inner frame.

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