Electronic pen

Abstract

The utility model discloses an electronic pen which comprises a pen body provided with a storage cavity; the mainboard assembly is arranged in the storage cavity, and the mainboard assembly is provided with a grounding part; and the metal piece is used for accommodating a battery and is arranged in the storage cavity, the metal piece is provided with a connecting terminal, and the connecting terminal is electrically connected with the grounding part. In the electronic pen, the connecting terminal on the metal piece is electrically connected with the grounding part on the main board assembly, so that if the metal piece generates static electricity, the static electricity can be transmitted to the main board assembly and then is released by the main board assembly, the risk that the static electricity is accumulated on the metal piece is reduced, and the service life of the electronic pen is prolonged. Therefore, the risk that electronic elements in the electronic pen are interfered is reduced, and the reliability of the electronic pen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, and particularly relates to an electronic pen. Background Art

[0002] An electronic pen, also known as a stylus pen, is mainly used for touch screen devices (such as tablet computers, smart phones or touch screen displays, etc.). The main function of the electronic pen is to simulate finger touch on the screen, and it can be used for writing, drawing, selecting items on the screen, scrolling pages or performing other tasks that require precise touch input. Among them, there are many metal parts inside the electronic pen, such as a metal bracket for accommodating a battery and protecting the battery. However, the metal parts will accumulate static electricity, and the static electricity will interfere with the electronic components inside the electronic pen, resulting in the electronic pen being unable to be used normally. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an electronic pen, which can have high reliability.

[0004] The electronic pen according to some embodiments of the utility model includes: a pen body provided with a storage cavity; a main board assembly disposed in the storage cavity, the main board assembly having a grounding portion; and a metal part for accommodating a battery, disposed in the storage cavity, the metal part having a connection terminal, and the connection terminal being electrically connected to the grounding portion.

[0005] The electronic pen according to the embodiments of the utility model has at least the following beneficial effects:

[0006] In the electronic pen of the utility model, the connection terminal on the metal part is electrically connected to the grounding portion on the main board assembly. In this way, if static electricity is generated on the metal part, the static electricity can be transferred to the main board assembly and then released by the main board assembly, thereby reducing the risk of static electricity accumulating on the metal part, and thus reducing the risk of the electronic components inside the electronic pen being interfered. In addition, if a short circuit occurs inside the electronic pen, the current on the metal part can also flow to the main board assembly and be released. Similarly, the metal part can also play a role in preventing external signal interference. When the interference signal is transmitted to the metal part, the interference signal can also flow to the main board assembly and be released. In this way, the reliability of the electronic pen can be improved.

[0007] According to some embodiments of the utility model, the metal part further has a main body portion, and the main body portion and the connection terminal are of an integral structure.

[0008] According to some embodiments of the utility model, the connection terminal has elasticity, and the elastic force of the connection terminal makes the connection terminal abut against the grounding portion.

[0009] According to some embodiments of the present utility model, the connection terminal has an arc-shaped abutting surface, and the arc-shaped abutting surface abuts against the grounding portion.

[0010] According to some embodiments of the present utility model, the metal member further has a main body portion, a through hole is provided in the main body portion, and the connection terminal is connected to the hole wall of the through hole.

[0011] According to some embodiments of the present utility model, a groove or a through hole is provided at one end of the connection terminal close to the main body portion.

[0012] According to some embodiments of the present utility model, the main board assembly includes a main board and a circuit board. A grounding terminal is provided on the main board, the circuit board is connected to the grounding terminal, and the circuit board has the grounding portion.

[0013] According to some embodiments of the present utility model, the electronic pen further includes a reinforcing member. The circuit board is a flexible circuit board. The flexible circuit board includes opposite first and second sides. Electronic components are provided on the first side. The material of the reinforcing member is a conductive material. One side of the reinforcing member is attached to the second side and electrically connected to the flexible circuit board, and the other side of the reinforcing member is electrically connected to the connection terminal.

[0014] According to some embodiments of the present utility model, the electronic pen further includes a conductive adhesive. One side of the conductive adhesive is bonded to one side of the reinforcing member, and the other side of the conductive adhesive is bonded to the second side.

[0015] According to some embodiments of the present utility model, the electronic pen further includes a battery. The metal member has an arc-shaped groove, and the battery is disposed in the arc-shaped groove.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0018] Figure 1 is a partial structural schematic diagram of an electronic pen according to an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 a cross-sectional structural schematic diagram of the shown figure;

[0020] Figure 3 is Figure 1 an exploded structural schematic diagram of the shown figure;

[0021] Figure 4 isFigure 3 Partial enlarged view of the shown figure.

[0022] Reference numerals in the drawings:

[0023] 100, main board assembly; 110, circuit board; 111, grounding part; 112, electronic component; 120, reinforcing member; 130, conductive adhesive;

[0024] 200, metal part; 210, connection terminal; 211, groove; 220, main body part; 230, through hole; 231, connection wall. Detailed implementation manners

[0025] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] As Figure 1 shown, the partial structure of an electronic pen provided by an embodiment of the present utility model includes a pen body (not shown), a main board assembly 100 and a metal part 200.

[0029] The pen body is provided with a storage cavity.

[0030] It is understandable that the pen body is a hollow structure with a storage cavity. Among them, the pen body can be a circular tubular structure, a square tubular structure or a structure of other shapes. The pen body is used for the user to hold so that the user can use the electronic pen.

[0031] The main board assembly 100 is arranged in the storage cavity of the pen body.

[0032] It is understandable that the pen body is used to protect the main board assembly 100 and provide an installation space for the main board assembly 100.

[0033] Furthermore, the metal part 200 is arranged in the storage cavity of the pen body.

[0034] It is understandable that the pen body is also used to protect the metal part 200 and provide an installation space for the metal part 200. Among them, the metal part 200 can be a metal bracket for accommodating the battery and protecting the battery. In addition, the material of the metal part 200 can be copper, stainless steel, iron or other metal materials.

[0035] Combined Figure 1 with Figure 2 , specifically, the electronic pen further includes a battery. The metal part 200 has an arc-shaped groove, and the battery is arranged in the arc-shaped groove. The metal part 200 is used to protect the battery.

[0036] Combined Figure 2 with Figure 3 , the main board assembly 100 has a grounding part 111, and the metal part 200 has a connection terminal 210. The connection terminal 210 is electrically connected to the grounding part 111.

[0037] It is understandable that the connection terminal 210 on the metal part 200 is electrically connected to the grounding part 111 on the main board assembly 100. In this way, if static electricity is generated on the metal part 200, the static electricity can be transmitted to the main board assembly 100 and then released by the main board assembly 100, thereby reducing the risk of static electricity accumulating on the metal part 200, and thus reducing the risk of the electronic components 112 inside the electronic pen being interfered. In addition, if a short circuit occurs inside the electronic pen, the current on the metal part 200 can also flow to the main board assembly 100 and be released. Similarly, the metal part 200 can also play a role in preventing external signal interference. When the interference signal is transmitted to the metal part 200, the interference signal can also flow to the main board assembly 100 and be released. In this way, the reliability of the electronic pen can be improved.

[0038] Combined Figure 3 with Figure 4 , in some embodiments, the metal part 200 further has a main body part 220, and the main body part 220 and the connection terminal 210 are of an integral structure.

[0039] It can be understood that the connection terminal 210 is a part of the metal part 200 itself, and the connection terminal 210 is processed from the metal part 200.

[0040] It should be noted that the connection between the metal part 200 and the grounding part 111 of the main board assembly 100 is achieved by using the connection terminal 210 formed by the metal part 200 itself, without the need to use conductive cloth, conductive foam or an independent elastic sheet to realize the connection between the metal part 200 and the grounding part 111 of the main board assembly 100. In this way, the use of corresponding materials can be reduced. For assembly, there is no need to assemble conductive cloth, conductive foam or an independent elastic sheet, which can improve the assembly efficiency.

[0041] Furthermore, the connection terminal 210 has elasticity, and the elastic force of the connection terminal 210 causes the connection terminal 210 to abut against the grounding part 111. In this way, reliable contact between the connection terminal 210 and the grounding part 111 can be achieved, and the risk of separation between the connection terminal 210 and the grounding part 111 can be reduced. Moreover, the way that the connection terminal 210 abuts against the grounding part 111 to achieve electrical conduction between the connection terminal 210 and the grounding part 111 does not require a welding process, and the operation is simpler.

[0042] Specifically, the connection terminal 210 is elastically connected to the main body part 220, that is, the connection part between the connection terminal 210 and the main body part 220 is an elastic structure. In this way, the connection terminal 210 can have elasticity, so as to ensure that the connection terminal 210 abuts against the grounding part 111.

[0043] As Figure 2 shown, furthermore, the main body part 220 has a connection wall 231, one end of the connection terminal 210 is connected to the connection wall 231, and the connection terminal 210 extends obliquely from the connection wall 231 towards the grounding part 111 and abuts against the grounding part 111. In this way, the connection position between the connection terminal 210 and the connection wall 231 can be an elastic structure, so that the entire connection terminal 210 has elasticity.

[0044] Specifically, the main body part 220 is provided with a through hole 230, the connection terminal 210 is connected to the hole wall of the through hole 230, and the hole wall of the through hole 230 is configured as the connection wall 231. Among them, the cross-sectional shape of the through hole 230 can be circular or polygonal.

[0045] Define a plane perpendicular to the depth direction of the through hole 230 as a reference plane. The projection of the connection terminal 210 on the reference plane does not extend from the side of the projection of the main body part 220 on the reference plane. In other words, the connection terminal 210 does not protrude from the side of the main body part 220, that is, the setting of the connection terminal 210 does not additionally occupy the space on the side of the main body part 220.

[0046] Further, a part of the projection of the connection terminal 210 on the reference plane coincides with the projection of the through hole 230 on the reference plane, that is, the area occupied by the connection terminal 210 on the reference plane is smaller than the area occupied by the through hole 230 on the reference plane. When the connection terminal 210 is forced to rotate towards the through hole 230 under an external force, the connection terminal 210 will also avoid the main body portion 220, reducing the risk of interference between the two.

[0047] Further, the connection terminal 210 has a groove 211 or a through hole, and the groove 211 or the through hole is provided at one end of the connection terminal 210 close to the main body portion 220. In this way, the elastic effect at the connection position between the connection terminal 210 and the main body portion 220 can be improved, making the connection terminal 210 more likely to bend and deform and more elastic.

[0048] Further, the connection terminal 210 has an arc-shaped abutting surface, and the arc-shaped abutting surface abuts against the grounding portion 111.

[0049] It can be understood that the arc-shaped abutting surface is formed at one end of the connection terminal 210 away from the connection wall 231. The abutting of the arc-shaped abutting surface against the grounding portion 111 can reduce the pressure on the grounding portion 111, thereby reducing the risk of damage to the grounding portion 111.

[0050] Specifically, one end of the connection terminal 210 away from the connection wall 231 is bent and extends away from the grounding portion 111. In this way, an arc-shaped abutting surface that abuts against the grounding portion 111 is formed on the connection terminal 210.

[0051] It should be noted that the main board assembly 100 includes a main board (not shown) and a circuit board 110. A grounding terminal is provided on the main board, the circuit board 110 is connected to the grounding terminal, and the circuit board 110 has a grounding portion 111.

[0052] It can be understood that generally, there is a certain distance between the installation position of the main board in the pen body and the installation position of the metal part 200. It is difficult for the connection terminal 210 on the metal part 200 to be directly connected to the grounding terminal on the main board. With the help of the circuit board 110, the electrical connection between the connection terminal 210 of the metal part 200 and the grounding terminal on the main board can be achieved.

[0053] It should be noted that the metal part 200 is connected to the grounding portion 111 of the circuit board 110 by using the connection terminal 210 formed by the metal part 200 itself, without the need to use a conductive cloth, a conductive foam or an independent elastic sheet to realize the connection between the metal part 200 and the grounding portion 111. In this way, the use of corresponding materials can be reduced. For assembly, there is no need to assemble a conductive cloth, a conductive foam or an independent elastic sheet, which can improve the assembly efficiency.

[0054] Further, the circuit board 110 is a flexible circuit board. In this way, the circuit board 110 can be bent and arranged according to the specific situation of the internal space of the pen body, which is beneficial to realizing the connection between the metal part 200 and the main board.

[0055] Further, the flexible circuit board includes opposite first and second sides. Electronic components 112 are provided on the first side of the flexible circuit board; it can be understood that the electronic components 112 can be LED lamp beads or other electronic components. The electronic pen further includes a reinforcing member 120, and one side of the reinforcing member 120 is attached to the second side of the flexible circuit board.

[0056] It should be noted that the reinforcing member 120 can provide support for the electronic components 112 and strengthen the flexible circuit board to prevent the part of the flexible circuit board where the reinforcing member 120 is provided from bending.

[0057] It can be understood that if the reinforcing member 120 is not provided, the flexible circuit board is likely to bend and deform at the position where the electronic components 112 are located, resulting in a change in the position of the electronic components 112. In addition, the electronic components 112 are connected to the first side of the flexible circuit board by welding. When the flexible circuit board bends, the weld seam will break, resulting in the problem that the electronic components 112 cannot be reliably fixed or there is poor contact.

[0058] Further, the material of the reinforcing member 120 is a conductive material, such as copper, steel, iron, etc. The reinforcing member 120 is electrically connected to the flexible circuit board, and the other side of the reinforcing member 120 is electrically connected to the connection terminal 210.

[0059] It should be noted that the second side of the flexible circuit board is a grounding portion 111. The reinforcing member 120 has electrical conductivity and is used to realize the electrical conduction between the connection terminal 210 and the grounding portion 111. Moreover, the reinforcing member 120 also provides support for the connection terminal 210 to prevent the connection terminal 210 from directly contacting the soft flexible circuit board, thereby reducing the risk of poor contact between the grounding portion 111 of the flexible circuit board and the connection terminal 210 caused by the deformation of the grounding portion 111.

[0060] It can be understood that in other embodiments, when there are no electronic components 112 on the opposite side of the grounding portion 111, the setting of the reinforcing member 120 can also be cancelled.

[0061] Combined with Figure 2 and Figure 4, Further, the electronic pen further includes a conductive adhesive 130. One side of the conductive adhesive 130 is adhered to one side of the reinforcement member 120, and the other side of the conductive adhesive 130 is adhered to the second side of the flexible circuit board. In other words, the conductive adhesive 130 is disposed between the reinforcement member 120 and the grounding portion 111, so as to achieve a reliable connection between the reinforcement member 120 and the grounding portion 111, and the conductive adhesive 130 can conduct electricity, so as to achieve electrical conduction between the reinforcement member 120 and the grounding portion 111.

[0062] Among them, the conductive adhesive 130 is an adhesive that has a certain electrical conductivity after curing or drying. It is a prior art, and its specific cost will not be introduced here.

[0063] In the electronic pen of the present utility model, the connection terminal 210 on the metal member 200 is electrically connected to the grounding portion 111 on the main board assembly 100. In this way, if static electricity is generated on the metal member 200, the static electricity can be transmitted to the main board assembly 100 and then released by the main board assembly 100, thereby reducing the risk of static electricity accumulating on the metal member 200, and thus reducing the risk of the electronic components 112 inside the electronic pen being interfered. In addition, if a short circuit occurs inside the electronic pen, the current on the metal member 200 can also flow to the main board assembly 100 and be released. Similarly, the metal member 200 can also play a role in preventing external signal interference. When the interference signal is transmitted to the metal member 200, the interference signal can also flow to the main board assembly 100 and be released. In this way, the reliability of the electronic pen can be improved.

[0064] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0065] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An electronic pen, characterized in that: include: The pen body is provided with a storage cavity; A mainboard assembly is disposed in the storage cavity, and the mainboard assembly has a grounding portion; The metal piece is used to accommodate the battery and is disposed in the storage cavity. The metal piece has a connecting terminal, and the connecting terminal is electrically connected to the grounding portion.

2. The electronic pen according to claim 1, characterized in that: The metal part also has a main body, and the main body and the connecting terminal are an integrated structure.

3. The electronic pen according to claim 1, characterized in that: The connecting terminal is elastic, and the elastic force of the connecting terminal causes the connecting terminal to abut against the grounding portion.

4. The electronic pen according to claim 3, characterized in that: The connecting terminal has an arc-shaped abutting surface, and the arc-shaped abutting surface abuts against the grounding portion.

5. The electronic pen according to claim 3, characterized in that: The metal piece also has a main body portion, the main body portion is provided with a through hole, and the connecting terminal is connected to the hole wall of the through hole.

6. The electronic pen according to claim 5, characterized in that: One end of the connecting terminal close to the main body is provided with a groove or a through hole.

7. The electronic pen according to claim 1, characterized in that: The mainboard assembly comprises a mainboard and a circuit board. A grounding terminal is arranged on the mainboard. The circuit board is connected to the grounding terminal, and the circuit board has the grounding portion.

8. The electronic pen according to claim 7, characterized in that: The electronic pen also includes a reinforcement piece. The circuit board is a flexible circuit board. The flexible circuit board includes a first side and a second side opposite to each other. The first side is provided with electronic components. The reinforcement piece is made of a conductive material. One side of the reinforcement piece is attached to the second side and electrically connected to the flexible circuit board. The other side of the reinforcement piece is electrically connected to the connecting terminal.

9. The electronic pen according to claim 8, characterized in that: The electronic pen further comprises a conductive adhesive, one side of the conductive adhesive is bonded to one side of the reinforcing member, and the other side of the conductive adhesive is bonded to the second side.

10. The electronic pen according to claim 1, characterized in that: The electronic pen further comprises a battery, the metal piece has an arc-shaped groove, and the battery is arranged in the arc-shaped groove.

Images