Touch pen

Abstract

The utility model discloses a touch control pen, which comprises a pen body, a pen core, a pen core and a pen cover, the circuit board is arranged in the storage cavity, the circuit board is provided with a static electricity storage device, and the static electricity storage device is used for absorbing static electricity; and the shielding piece is made of a conductive material, the shielding piece is arranged in the storage cavity, the shielding piece is located between the pen body and the circuit board, and the shielding piece is electrically connected with the static electricity storage device. The touch pen provided by the utility model can have relatively high reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of touch pens, in particular to a touch pen. Background Art

[0002] In the related art, a stylus pen is generally used in conjunction with an electronic mobile device, such as a tablet. The stylus pen itself sends a signal to the tablet, thereby realizing the writing and drawing functions on the tablet. The stylus pen includes a pen body and a circuit board, and the circuit board is arranged in the pen body. The circuit board can be used to send and receive signals.

[0003] Furthermore, during the manufacturing process or use of the stylus, the stylus may have static electricity on the stylus, which may contact the circuit board and damage the circuit board, thus causing the stylus to be unable to be used normally. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a touch pen with high reliability.

[0005] A touch pen according to an embodiment of the utility model includes:

[0006] The pen body is provided with a storage cavity;

[0007] A circuit board is arranged in the storage cavity, the circuit board has an electrostatic storage device, and the electrostatic storage device is used to absorb static electricity;

[0008] The shielding component is made of conductive material, is disposed in the storage cavity, is located between the pen body and the circuit board, and is electrically connected to the electrostatic storage device.

[0009] The stylus pen according to the embodiment of the utility model has at least the following beneficial effects: by arranging the shielding member between the pen body and the circuit board, and connecting the shielding member to the electrostatic storage device, the static electricity on the pen body can be transmitted to the shielding member, and then further absorbed by the electrostatic storage device, thus effectively preventing the static electricity on the pen body from damaging the circuit board. Specifically, the stylus pen can have higher reliability.

[0010] According to some embodiments of the stylus pen of the present invention, the stylus pen further includes a connecting member, the connecting member is made of a conductive material, the connecting member is disposed in the storage cavity, and two ends of the connecting member are respectively connected to the shielding member and the electrostatic storage device.

[0011] According to the stylus pen of some embodiments of the present invention, the connecting piece is made of conductive cotton.

[0012] According to the touch pen of some embodiments of the present invention, the conductive cotton is elastic, and the elastic force of the conductive cotton causes two ends of the conductive cotton to abut against the shielding component and the electrostatic storage device respectively.

[0013] According to the stylus pen of some embodiments of the present invention, the shielding member includes a main body and a protruding portion, the protruding portion is connected to the main body and protrudes relative to the main body, the main body is wrapped around the circuit board, and the protruding portion is electrically connected to the electrostatic storage device.

[0014] According to some embodiments of the stylus pen of the present invention, the stylus pen includes a bracket, which is arranged in the storage cavity, and the bracket has a placement cavity, and the circuit board is arranged in the placement cavity; the stylus pen also includes a connecting piece, which is arranged in the storage cavity, and the two ends of the connecting piece are respectively connected to the shielding piece and the electrostatic storage device; the bracket is also provided with a mounting hole connected to the placement cavity, and the connecting piece is arranged in the mounting hole.

[0015] According to the stylus pen of some embodiments of the present invention, the shielding member is sleeved on the outside of the bracket; the bracket includes a first part and a second part, and the first part is connected to the second part to form the placement cavity.

[0016] According to the stylus pen of some embodiments of the present invention, the shielding element is made of conductive cloth.

[0017] According to the stylus pen of some embodiments of the present invention, the thickness of the conductive cloth is L1, and 0.05 mm ≤ L1 ≤ 1 mm.

[0018] According to the stylus pen of some embodiments of the present invention, the electrostatic storage device includes a varistor or an ESD electrostatic protection diode.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 Schematic diagram of a stylus pen according to some embodiments of the present invention;

[0022] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0023] Figure 3 It is a partial schematic diagram of a touch pen of some embodiments of the utility model;

[0024] Figure 4 Schematic diagram of an explosion of a stylus according to some embodiments of the present invention.

[0025] Reference numerals:

[0026] The stylus pen 100 , the pen body 200 , the storage cavity 210 , the circuit board 300 , the shielding member 400 , the body portion 410 , the protruding portion 420 , the connecting member 500 , the bracket 600 , the first portion 610 , the second portion 620 , and the mounting hole 630 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] In the related art, the stylus pen 100 is generally used in conjunction with an electronic mobile device, such as a tablet. The stylus pen 100 itself sends a signal to the tablet, thereby realizing the writing and drawing functions on the tablet. The stylus pen 100 includes a pen body 200 and a circuit board 300. The circuit board 300 is arranged in the pen body 200, and the circuit board 300 can be used to send and receive signals.

[0033] Furthermore, during the manufacturing process or use of the stylus pen 100, the pen body 200 may have static electricity. The static electricity on the pen body 200 may contact the circuit board 300, thereby damaging the circuit board 300, which may cause the stylus pen 100 to be unable to be used normally. To this end, the present application proposes a stylus pen 100.

[0034] Please refer to Figures 1 to 4In some embodiments, the stylus pen 100 includes a pen body 200, a circuit board 300 and a shielding member 400. The pen body 200 is provided with a storage cavity 210. The material of the pen body 200 can be a rubber material or a metal material. During the manufacturing process and the use process of the pen body 200, the pen body 200 will have static electricity, and the static electricity will cause the circuit board 300 to not work properly. Therefore, it is necessary to set a shielding member 400 and a static electricity storage device to absorb the static electricity to protect the circuit board 300. The circuit board 300 is arranged in the storage cavity 210, and the circuit board 300 has a static electricity storage device, which is used to absorb static electricity. The static electricity storage device is described in detail below. In addition to the static electricity storage device, the circuit board 300 also has electronic components such as resistors, capacitors, sensors and communicators, so as to realize the connection and cooperation between the stylus pen 100 and the mobile device. The shielding member 400 is a conductive material. The conductive material can be a metal material, such as copper, aluminum, silver, gold, etc., which are all common conductive metals. There are a large number of free electrons inside metals, so they can easily conduct current. The conductive material can be an alloy, which is a mixture of two or more metal elements, and they usually also have good conductivity. For example, copper alloy and aluminum alloy, the conductive material can be graphite, carbon nanotubes and graphene, etc. The shielding member 400 is arranged in the storage cavity 210, the shielding member 400 is located between the pen body 200 and the circuit board 300, and the shielding member 400 is electrically connected to the electrostatic storage. Specifically, by arranging the shielding member 400 between the pen body 200 and the circuit board 300, and connecting the shielding member 400 and the electrostatic storage, the static electricity on the pen body 200 can be transmitted to the shielding member 400, and then further absorbed by the electrostatic storage, so that the static electricity on the pen body 200 can be effectively prevented from damaging the circuit board 300. Specifically, the stylus 100 can have higher reliability.

[0035] It should be noted that the static electricity on the pen body 200 may cause current anomalies and signal interference problems on the circuit board 300. Therefore, the shielding member 400 can also prevent static electricity from interfering with the signal of the circuit board 300, which can effectively ensure the normal use of the circuit board 300.

[0036] Further, the following describes how the shielding member 400 is electrically connected to the electrostatic storage device. Figure 2In some embodiments, the stylus 100 further includes a connector 500. The connector 500 is disposed in the storage cavity 210, and the two ends of the connector 500 are respectively connected to the shielding member 400 and the electrostatic reservoir. Specifically, the material of the connector 500 may be a conductive material, and the conductive material may be a metal material, such as copper, aluminum, silver, gold, etc., which are all common conductive metals. There are a large number of free electrons inside metals, so they can easily conduct current. The conductive material may be an alloy, which is a mixture of two or more metal elements, and they generally also have good electrical conductivity. For example, copper alloy and aluminum alloy, the conductive material may be graphite, carbon nanotubes, and graphene, etc. The two ends of the connector 500 are respectively connected to the shielding member 400 and the electrostatic reservoir, so that the electrical connection between the shielding member 400 and the electrostatic reservoir can be achieved. Specifically, one end of the connector 500 can be abutted or welded to the shielding member 400, and similarly, the other end of the connector 500 can be abutted or welded to the circuit board 300. For example, a conductive layer is provided on the circuit board 300, and the conductive layer and the other end of the connector 500 are electrically connected.

[0037] Further, in some embodiments, the material of the connector 500 is conductive cotton. Conductive cotton is a special material. By coating a layer of conductive oxide or conductive polymer on the surface of cotton fiber, a good contact is formed between the conductive material and the cotton fiber, and the current is conducted through the conductive property. This material not only retains the softness and air permeability of traditional cotton, but also has a lower resistivity and can effectively conduct current. The main function of the conductive cotton is to conduct a conductive connection between the circuit board 300 and the electronic components to ensure the normal operation of the electronic product. Compared with traditional metal wires, conductive cotton has better conductivity, elasticity, safety and stability, and is not easy to break. The process of preparing conductive cotton generally includes steps such as mixing, spraying and curing. First, the conductive materials are mixed in proportion, and after being mixed evenly by a mixing mechanical device, they are sent to a spraying device for coating. The conductive material is evenly sprayed on the surface of the cotton fiber under high pressure and low temperature, and then the surface coating is firmly fixed on the cotton fiber by a curing device. In addition, the cost of conductive cotton is low. Since the main material of conductive cotton is sponge, this material is relatively easy to obtain and the processing cost is not high, which also provides conditions for the low cost of conductive cotton. In addition, the conductive cotton is made conductive by coating a layer of conductive material on the surface of the cotton fiber. This coating process is relatively simple and reduces production costs. Specifically, the conductive cotton has high conductivity and low cost, which can make the stylus 100 cost less.

[0038] Furthermore, the conductive cotton has elasticity, and the elastic force of the conductive cotton makes the two ends of the conductive cotton respectively abut against the shielding member 400 and the electrostatic reservoir. Specifically, the height of the conductive cotton can be greater than the hole depth of the mounting hole 630 (or the height of the conductive cotton is greater than the distance between the shielding member 400 and the electrostatic reservoir), so that under the action of its own elastic force, the two ends of the conductive cotton can respectively abut against the shielding member 400 and the electrostatic reservoir (at this time, the conductive cotton is in a compressed state), which can improve the stability of the electrical connection between the conductive cotton and the shielding member 400 and the stability of the electrical connection between the conductive cotton and the electrostatic reservoir.

[0039] The above describes a method in which the two ends of the connector 500 are respectively connected to the shielding member 400 and the electrostatic storage device, thereby realizing the electrical connection between the shielding member 400 and the electrostatic storage device. Another method is described below. Figure 3 and Figure 4 In some embodiments, the shielding member 400 includes a main body 410 and a protruding portion 420. The protruding portion 420 is connected to the main body 410, and the protruding portion 420 protrudes relative to the main body 410. The main body 410 is wrapped around the circuit board 300. The main body 410 is wrapped around the circuit board 300 in a specific manner that the main body 410 directly contacts the circuit board 300, thereby wrapping the circuit board 300; or, the main body 410 indirectly wraps the circuit board 300, that is, there are other objects between the main body 410 and the circuit board 300, such as a bracket 600. The protruding portion 420 is electrically connected to the electrostatic reservoir. Specifically, after the protruding portion 420 is electrically connected to the electrostatic reservoir, the shielding member 400 can be directly connected to the electrostatic reservoir without the assistance of the connector 500, which can reduce the occupation of more parts, thereby making the interior of the storage cavity 210 more compact.

[0040] For further information, please refer to Figure 1 and Figure 4 In some embodiments, the stylus 100 includes a bracket 600. The bracket 600 is disposed in the storage cavity 210, and the bracket 600 has a placement cavity, and the circuit board 300 is disposed in the placement cavity. Specifically, the stylus 100 contains components such as the circuit board 300, a sensing element, and a battery, and these components need to be properly fixed and supported to ensure the stability and reliability of the stylus 100 during use. The bracket 600 can provide a stable structure so that these components can be tightly combined together to avoid loosening or damage during movement or use. That is, the bracket 600 can be fixedly connected or abutted with the cavity wall of the storage cavity 210, so that the bracket 600 is fixed in the storage cavity 210, and then the circuit board 300 can be disposed in the placement cavity of the bracket 600, so that the bracket 600 fixes the circuit board 300.

[0041] For further information, please refer to Figure 2 and Figure 4 In some embodiments, the stylus pen 100 further includes a connector 500, which is disposed in the storage cavity 210, and the two ends of the connector 500 are respectively connected to the shielding member 400 and the electrostatic storage. The bracket 600 is also provided with a mounting hole 630 connected to the placement cavity, and the connector 500 is disposed in the mounting hole 630. After the mounting hole 630 is provided on the bracket 600, the connector 500 can be disposed in the mounting hole 630. The provision of the mounting hole 630 can reduce the length of the connector 500, so that the connector 500 is directly connected to the circuit board 300. That is, after the mounting hole 630 is provided, the connection between the shielding member 400 and the circuit board 300 can be achieved through the connector 500 of a shorter length. In addition, the mounting hole 630 can also fix or pre-fix the connector 500 to prevent the connector 500 from moving. When the connector 500 is conductive cotton, the conductive cotton is a non-rigid material, and the side wall of the mounting hole 630 can effectively prevent the conductive cotton from shifting.

[0042] Furthermore, there are two ways for the shielding member 400 to be located between the pen body 200 and the circuit board 300. In the first way, the shielding member 400 is connected to the cavity wall of the storage cavity 210, that is, the shielding member 400 can be bonded to the wall of the storage cavity 210. In the second way, the shielding member 400 can be sleeved on the outside of the bracket 600, thereby directly wrapping the bracket 600 and indirectly wrapping the circuit board 300. Compared with the first way, the second way is simpler to operate and can improve the work efficiency of the staff. Therefore, in some embodiments, the shielding member 400 is sleeved on the outside of the bracket 600.

[0043] Further, the specific structure of the bracket 600 is described below. Figure 2 and Figure 4 In some embodiments, the bracket 600 includes a first portion 610 and a second portion 620, and the first portion 610 is connected to the second portion 620 to form a placement cavity. The shape of the bracket 600 may be cylindrical, the shape of the first portion 610 may be semi-cylindrical, and the shape of the second portion 620 may also be semi-cylindrical. The first portion 610 and the second portion 620 may be connected by bolt connection. When installing the circuit board 300, the circuit board 300 may be first fixed on the first portion 610 or on the second portion 620, and then the first portion 610 and the second portion 620 are fixedly connected, and finally the bracket 600 and the circuit board 300 are placed in the storage cavity 210.

[0044] Furthermore, in some embodiments, the shielding member 400 is made of conductive cloth. The conductive cloth uses fiber cloth (usually polyester fiber cloth) as the base material, and after pre-treatment, it is electroplated with a metal coating, such as nickel, gold, carbon, etc., so that it has metal properties and becomes a conductive cloth. This fabric has two appearances: plain and mesh. Conductive cloth is used to prevent interference and signal leakage. The production process of conductive cloth mainly includes the steps of material selection, weaving, coating, curing, testing and cutting. For example, the production of silver paste conductive cloth will use natural cotton, polyester and other fibers as the base material, and then add conductive silver paste and other materials. After weaving and coating processes, a conductive layer is formed, and finally cured, tested and cut. Among them, the conductive cloth can be conveniently wrapped on the bracket 600, thereby completing the wrapping of the circuit board 300.

[0045] Further, in some embodiments, the thickness of the conductive cloth is L1, 0.05 mm ≤ L1 ≤ 1 mm. The thickness of the conductive cloth may be 0.05 mm, 0.5 mm or 1 mm. When the thickness of the conductive cloth is less than 0.05 mm, the thickness of the conductive cloth is too small, which may cause processing difficulties. When the thickness of the conductive cloth is greater than 1 mm, the conductive cloth may occupy too much space inside the stylus 100 due to its large thickness.

[0046] Further, in some embodiments, the electrostatic storage device includes a varistor or an ESD electrostatic protection diode. Specifically, varistors have high impedance at low current and low voltage, but their impedance drops significantly at high voltage and high current. This characteristic enables them to absorb static electricity and prevent static electricity from damaging the circuit. Such diodes are mainly used for ESD (Electro-Static discharge) protection. They can effectively absorb and dissipate electrostatic charges, thereby protecting the circuit from damage caused by static electricity.

[0047] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A stylus pen, characterized in that: include: The pen body is provided with a storage cavity; A circuit board is arranged in the storage cavity, wherein the circuit board has an electrostatic storage device, and the electrostatic storage device is used to absorb static electricity; The shielding component is made of conductive material, is disposed in the storage cavity, is located between the pen body and the circuit board, and is electrically connected to the electrostatic storage device.

2. The touch pen according to claim 1, characterized in that: The touch pen also includes a connecting member, the material of the connecting member is a conductive material, the connecting member is arranged in the storage cavity, and two ends of the connecting member are respectively connected to the shielding member and the electrostatic storage device.

3. The touch pen according to claim 2, characterized in that: The connecting piece is made of conductive cotton.

4. The touch pen according to claim 3, characterized in that: The conductive cotton is elastic, and the elastic force of the conductive cotton causes two ends of the conductive cotton to abut against the shielding component and the electrostatic storage device respectively.

5. The touch pen according to claim 1, characterized in that: The shielding member includes a main body and a protruding portion, wherein the protruding portion is connected to the main body and protrudes relative to the main body, the main body is wrapped around the circuit board, and the protruding portion is electrically connected to the electrostatic storage device.

6. The touch pen according to claim 1, characterized in that: The stylus pen includes a bracket, which is arranged in the storage cavity. The bracket has a placement cavity, and the circuit board is arranged in the placement cavity; the stylus pen also includes a connector, which is arranged in the storage cavity, and the two ends of the connector are respectively connected to the shielding member and the electrostatic storage device; the bracket is also provided with a mounting hole connected to the placement cavity, and the connector is arranged in the mounting hole.

7. The touch pen according to claim 6, characterized in that: The shielding member is sleeved on the outer side of the bracket; the bracket comprises a first part and a second part, and the first part is connected to the second part to form the placement cavity.

8. The touch pen according to claim 1, characterized in that: The shielding element is made of conductive cloth.

9. The touch pen according to claim 8, characterized in that: The thickness of the conductive cloth is L1, 0.05 mm ≤ L1 ≤ 1 mm.

10. The touch pen according to claim 1, characterized in that: The electrostatic storage device includes a varistor or an ESD electrostatic protection diode.

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