CN220526307U - Touch control pen - Google Patents

Abstract

The utility model discloses a touch pen, comprising: a housing having a receiving cavity; the circuit board is arranged in the accommodating cavity; a magnet connected to the housing; the shielding piece is connected to the shell, is arranged between the circuit board and the magnet, and is made of a magnetism isolating material. The touch pen provided by the utility model has higher reliability.

Description

Touch control pen

Technical Field

The utility model relates to the technical field of terminals, in particular to a touch pen.

Background

In the related art, a stylus is generally used with an electronic mobile device, such as a tablet. The stylus itself may send a signal to the tablet to implement the writing function on the tablet. After a period of use, the stylus needs to be charged. The existing touch pen generally adopts two modes of wired charging and wireless charging. The wireless charging mode of the touch pen is as follows: the touch pen is adsorbed on the flat plate through the magnet, and then a charging component of a circuit board in the touch pen can sense the flat plate, so that current is generated to charge the battery. It is conceivable that the magnets interfere with the normal use of the circuit board due to their magnetic properties, further resulting in lower reliability of the stylus.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a touch pen which can have higher reliability.

An embodiment of a stylus according to the first aspect of the present utility model includes:

a housing having a receiving cavity;

the circuit board is arranged in the accommodating cavity;

a magnet connected to the housing;

the shielding piece is connected to the shell, is arranged between the circuit board and the magnet, and is made of a magnetism isolating material.

The touch pen provided by the embodiment of the utility model has at least the following beneficial effects: the shielding piece can shield at least one part of magnetic field of the magnet facing the direction of the circuit board, so that the magnetic field of the magnet is effectively prevented from interfering the circuit board, and the circuit board is prevented from being problematic. Thus, the reliability of the circuit board is higher, and further, the reliability of the touch pen with the circuit board is higher.

According to some embodiments of the utility model, the housing is provided with a placement groove, the placement groove and the accommodation chamber are separated from each other, and the magnet and the shield are both disposed in the placement groove.

According to some embodiments of the utility model, the shield is provided with a fixed slot in which the magnet is disposed.

According to some embodiments of the utility model, the magnet includes a first surface and a plurality of second surfaces, the first surface faces the circuit board, the plurality of second surfaces are around the first surface and are commonly connected to the first surface, and the groove walls of the fixing groove wrap the first surface and the second surface.

According to some embodiments of the utility model, the housing includes a first shell and a second shell, the first shell is connected to the second shell to form the accommodating cavity, and a side of the second shell opposite to the accommodating cavity is provided with the placement groove.

According to the touch pen of some embodiments of the present utility model, the N pole and the S pole of the magnet are opposite to each other, the magnets are three, the three magnets are distributed along the length direction of the touch pen, the three magnets are a first magnet, a second magnet and a third magnet, the S pole of the second magnet faces the first magnet, the N pole of the second magnet faces the third magnet, the N pole of the first magnet faces the circuit board, and the S pole of the third magnet faces the circuit board.

According to some embodiments of the utility model, the thickness of the shield is 0.1mm to 0.15mm.

According to some embodiments of the utility model, the distance between the shielding member and the circuit board is 0.8 mm-1 mm.

According to some embodiments of the utility model, the shield is made of steel.

A stylus according to an embodiment of the second aspect of the present utility model includes:

a housing having a receiving cavity;

the circuit board is arranged in the accommodating cavity;

a magnet connected to the housing;

the shell comprises a shielding part, wherein the shielding part is arranged between the circuit board and the magnet, and the shielding part is made of a magnetic isolation material.

The touch pen provided by the embodiment of the utility model has at least the following beneficial effects: the shielding part can shield at least part of the magnetic field of the magnet facing the direction of the circuit board, so that the magnetic field of the magnet is effectively prevented from interfering the circuit board, and the circuit board is prevented from being problematic. Thus, the reliability of the circuit board is higher, and further, the reliability of the touch pen with the circuit board is higher.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a stylus according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of a partial explosion of a stylus according to some embodiments of the utility model;

FIG. 3 is a schematic diagram of a stylus according to a second embodiment of the present utility model;

fig. 4 is a schematic view of a stylus according to a third embodiment of the utility model.

Reference numerals:

the stylus 10, the housing 100, the first housing 110, the second housing 120, the receiving cavity 130, the placement groove 140, the circuit board 200, the magnet 300, the first magnet 310, the second magnet 320, the third magnet 330, the first surface 340, the second surface 350, the shield 400, and the fixing groove 410.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1, 2 and 3, in some embodiments, the stylus 10 includes: the housing 100, the circuit board 200, the magnet 300, and the shield 400. The housing 100 has a receiving cavity 130. The housing 100 may be cylindrical in shape, and the diameter of the leading and trailing ends of the housing 100 is smaller than the diameter of the middle of the housing 100, which is advantageous for a user to hold the stylus 10. The circuit board 200 is disposed in the accommodating chamber 130, and a plurality of electronic components such as an inductance component, a rectifier, a processor, a signal transceiver, and the like are disposed on the circuit board 200. A battery is also provided in the stylus 10, and is electrically connected to the circuit board 200. The battery may supply current to the circuit board 200 and when the battery is not powered, external current may be processed through a rectifier on the circuit board 200 to charge the battery. The magnet 300 is connected to the housing 100, and the magnet 300 is used to connect the stylus 10 with the mobile electronic device. In this application, a tablet is taken as an example of a mobile electronic device. I.e., the stylus 10 may be attracted to a tablet by the magnet 300, which facilitates the user's search for and use of the stylus 10. The shielding member 400 is connected to the housing 100, and the shielding member 400 is disposed between the circuit board 200 and the magnet 300, wherein the shielding member 400 is made of a magnetic shielding material, and the shielding member 400 is used for shielding a magnetic field of at least a portion of the magnet 300 facing the direction of the circuit board 200. Specifically, the shielding member 400 is disposed between the circuit board 200 and the magnet 300, and since the shielding member 400 is made of a magnetic shielding material, the shielding member 400 can shield at least a portion of the magnetic field of the magnet 300 facing the direction of the circuit board 200, thereby effectively avoiding the magnetic field from interfering with the circuit board 200 and preventing the circuit board 200 from being problematic. In this way, since the reliability of the circuit board 200 is high, further, the reliability of the stylus pen 10 having the circuit board 200 is high. In addition, since the circuit board 200 has an inductance element, when the magnetic field of the magnet 300 interferes with the inductance element, the circuit board 200 has drawbacks such as high power consumption and fast power consumption. In the touch pen 10 of the present application, the magnet 300 can be shielded against at least a part of the magnetic field of the circuit board 200, so that the circuit board 200 is not interfered by the magnetic field, and the touch pen 10 further has the characteristics of low power consumption and better cruising ability. The stylus 10 of the present application, because of the shielding member 400, can further improve the adsorption capability of the stylus 10, so that the stylus 10 can be firmly adsorbed on the tablet.

Further, the following exemplifies the magnetism blocking material. The magnetism isolating material can be any one of steel sheet, ferrite material, mn-Zn ferrite material, graphite material and carbon fiber material. Wherein, the ferrite material is a ceramic material with special magnetism and can be used for manufacturing magnetism isolating materials. In the frequency range of electromagnetic waves, the ferrite material can generate relatively large magnetic impedance, and can shield a magnetic field and an electrostatic field, so that the magnetic isolation effect is achieved. In addition, ferrite materials are relatively inexpensive and suitable for mass production. The Mn-Zn ferrite material is a common magnetism isolating material and is also an advanced composite material. The Mn-Zn ferrite material has excellent electromagnetic wave shielding performance and magnetism isolating performance. In addition, the preparation process of the manganese zinc ferrite material is also mature, and can meet the requirements of different materials. Graphite material is a common magnetic barrier material, mainly because graphite has good electronic and thermal conductivity. The graphite material can absorb electromagnetic waves and convert the electromagnetic waves into heat energy, so that the influence of the electromagnetic waves on electronic equipment is avoided. The carbon fiber material is a light, high-strength and high-toughness magnetism isolating material and has excellent electromagnetic wave shielding performance and conductivity. It should be noted that the magnetic isolation material is also provided in a large number, and will not be described in detail here.

Referring to fig. 2 and 3, in some embodiments, the housing 100 is provided with a placement groove 140, the placement groove 140 and the accommodating chamber 130 are separated from each other, and the magnet 300 and the shielding member 400 are disposed in the placement groove 140. The housing 100 has a receiving cavity 130, the circuit board 200 is disposed in the receiving cavity 130, and the surface of the housing 100 may form a placement groove 140 after being concave toward the receiving cavity 130. That is, when the circuit board 200 is mounted into the receiving chamber 130, the case 100 needs to be disassembled. When the magnet 300 is mounted in the placement groove 140, the magnet 300 is only required to be embedded in the placement groove 140 by bonding or clamping. Further, in the radial direction of the housing 100, the placement groove 140 and the receiving chamber 130 are separated from each other. In another embodiment, the placement groove 140 and the receiving chamber 130 are spaced apart from each other in the axial direction of the housing 100.

Referring to fig. 2 and 3, in some embodiments, the housing 100 includes a first shell 110 and a second shell 120, and the first shell 110 is connected to the second shell 120 to form the accommodating chamber 130. The second case 120 is provided with a placement groove 140 at a side facing away from the receiving chamber 130, and the magnet 300 and the shield 400 are both disposed in the placement groove 140. The first and second cases 110 and 120 may be semi-cylindrical in shape, and the first case 110 may be coupled with the second case 120 by bolts. In which the circuit board 200 is conveniently mounted in the case 100 by bolting the first case 110 and the second case 120, for example, the circuit board 200 is first mounted on the first case 110 by screws and then the second case 120 and the first case 110 are coupled together. The first case 110 and the second case 120 are bolted in such a manner that the case 100 can be easily disassembled to repair the circuit board 200 when the circuit board 200 fails. The material of the first shell 110 and the second shell 120 may be plastic.

Further, the shield 400 may be in a sheet shape, one side of the shield 400 being coupled to the magnet 300, and the other side of the shield 400 being coupled to the housing 100. In order to make the shielding member 400 better for shielding the magnetic field of the magnet 300, a fixing slot 410 may be formed on the shielding member 400, and after the magnet 300 is disposed in the fixing slot 410, the slot wall of the fixing slot 410 may surround the magnet 300, which may make the shielding member 400 better for shielding the magnet 300. Thus, referring to fig. 2, in some embodiments, the shielding member 400 is provided with a fixing slot 410, and the magnet 300 is disposed in the fixing slot 410. Wherein the fixing groove 410 and the magnet 300 may have a square shape.

Further, after the magnet 300 and the shield 400 are disposed in the placement groove 140 and the magnet 300 is disposed in the fixing groove 410, there are three cases, taking the magnet 300 as an example. In the first case, the magnet 300 protrudes from the fixing groove 410, that is, a portion of the magnet 300 is located outside the fixing groove 410. It is conceivable that in this case, the more the magnets 300, the stronger the suction force of the stylus 10 to be attracted to the tablet. In the second case, the surface of the magnet 300 is flush with the surface of the fixing groove 410, i.e., the volume of the magnet 300 is equal to the volume of the fixing groove 410. In this case, the magnet 300 does not interfere with the normal use of the stylus 10 by the user, and the stylus 10 has a large suction force to be attracted to the tablet. In the third case, the surface of the magnet 300 is lower than the surface of the fixing groove 410, i.e., the volume of the magnet 300 is smaller than the volume of the fixing groove 410. In this case, the suction force of the stylus 10 is smaller than that of the stylus 10 in the second case. Of the three cases, the first case has the greatest attractive force of the magnet 300, but it affects the normal use of the stylus 10 by the user. Thus, referring to fig. 2, in some embodiments, the magnet 300 does not protrude beyond the fixing slot 410. That is, the magnet 300 includes a first surface 340 and a plurality of second surfaces 350, the first surface 340 faces the circuit board 200, the plurality of second surfaces 350 surrounds the first surface 340 and is commonly connected to the first surface 340, and the groove walls of the fixing groove 410 are wrapped around the first surface 340 and the second surface 350.

The above-mentioned shielding member 400 is in the form of a sheet, and also refers to a manner in which the fixing groove 410 may be provided on the shielding member 400. Wherein in other cases at least part of the housing 100 may be made directly of magnetically isolated material, which does not require machining of the shield 400. For example, when the magnet 300 and the shielding member 400 are placed in the placement groove 140 together, the shielding member 400 occupies a certain space, and after the shielding member 400 is reduced, the volume of a part of the magnet 300 can be increased, which is beneficial to improving the adsorption force of the stylus 10, and ensuring higher reliability when the stylus 10 is adsorbed on a tablet for wireless charging. Specifically, in some embodiments, the stylus 10 includes: the housing 100, the circuit board 200, the magnet 300, and the shield 400. The housing 100 has a receiving cavity 130. The housing 100 may be cylindrical in shape, and the diameter of the leading and trailing ends of the housing 100 is smaller than the diameter of the middle of the housing 100, which is advantageous for a user to hold the stylus 10. The circuit board 200 is disposed in the accommodating chamber 130, and a plurality of electronic components such as a rectifier, a processor, a signal transceiver, and the like are disposed on the circuit board 200. A battery is also provided in the stylus 10, and is electrically connected to the circuit board 200. The battery may supply current to the circuit board 200 and when the battery is not powered, external current may be processed through a rectifier on the circuit board 200 to charge the battery. The magnet 300 is connected to the housing 100, and the magnet 300 is used for connection with a mobile electronic device. The housing 100 includes a shielding portion disposed between the circuit board 200 and the magnet 300, wherein the shielding portion is made of a magnetic shielding material, and the shielding member 400 is used for shielding a magnetic field of at least a portion of the magnet 300 facing the direction of the circuit board 200. For example, referring to fig. 3, the housing 100 includes a first housing 110 and a second housing 120, and the first housing 110 and the second housing 120 are both semicircular in shape. The circuit board 200 is mounted on the first case 110, and the second case 120 covers the circuit board 200 after being coupled to the first case 110. The second case 120 is provided with a shielding part for shielding the magnetic field. The shielding part may be provided as a placement groove 140, and the placement groove 140 is used for placing the magnet 300 and shielding a magnetic field of at least a portion of the magnet 300 facing the direction of the circuit board 200.

Specifically, at least a portion of the housing 100 may be provided as a shielding portion, and by providing the shielding portion between the circuit board 200 and the magnet 300, and since the shielding portion is made of a magnetic shielding material, the shielding portion may shield at least a portion of the magnetic field of the magnet 300 facing the direction of the circuit board 200, thereby effectively avoiding the magnetic field from interfering with the circuit board 200 and preventing the circuit board 200 from being problematic. In this way, since the reliability of the circuit board 200 is high, further, the reliability of the stylus pen 10 having the circuit board 200 is high. In addition, since the circuit board 200 has an inductance element, when the magnetic field of the magnet 300 interferes with the inductance element, the circuit board 200 has drawbacks such as high power consumption and fast power consumption. In the touch pen 10 of the present application, the magnet 300 can be shielded against at least a part of the magnetic field of the circuit board 200, so that the circuit board 200 is not interfered by the magnetic field, and the touch pen 10 further has the characteristics of low power consumption and better cruising ability. The stylus 10 of the present application can further improve the adsorption capability of the stylus 10 because the housing 100 is provided with the shielding portion, so that the stylus 10 can be firmly adsorbed on the tablet.

Further, when the magnet 300 is placed in the placement groove 140, it is conceivable that one magnet 300 or a plurality of magnets 300 may be placed in the placement groove 140, and the placement of the plurality of magnets 300 may further improve the suction force of the stylus 10. Such as three magnets 300. Specifically, referring to fig. 4, in some embodiments, the N-pole and S-pole of the magnet 300 are opposite to each other, the magnet 300 is provided with three magnets 300, the three magnets 300 are distributed along the length direction of the stylus 10, the three magnets 300 are respectively a first magnet 310, a second magnet 320 and a third magnet 330, the S-pole of the second magnet 320 is oriented towards the first magnet 310, the N-pole of the second magnet 320 is oriented towards the third magnet 330, the N-pole of the first magnet 310 is oriented towards the circuit board 200, and the S-pole of the third magnet 330 is oriented towards the circuit board 200. The first, second and third magnets 310, 320 and 330 can maximize the magnetic force when the three magnets 300 are combined together, i.e., the attractive force of the stylus 10, by the arrangement described above. In the present embodiment, the stylus 10 can be stably and reliably adsorbed on the tablet.

Further, in some embodiments, the material of the shield 400 is steel. Where the material of the shield 400 is steel, the shield 400 may be a steel sheet, for example. The steel sheet can shield the magnetic field of the magnet 300 facing the circuit board 200 on one hand, and the steel sheet can absorb the flat plate after contacting with the magnet 300 on the other hand, namely, the steel sheet can be absorbed on the flat plate together with the magnet 300, and finally, the stylus 10 is absorbed on the flat plate. In addition, the cost of the steel sheet is low, and the steel sheet is suitable for being used on the touch pen 10 in a large scale, so that the cost of the touch pen 10 is reduced.

Further, referring to fig. 3, in some embodiments, the thickness of the shielding member 400 is 0.1mm to 0.15mm. The thickness of the shield 400 is denoted as L1. When the thickness of the shield 400 is greater than 0.1mm, since the shield 400 and the magnet 300 are co-disposed in the placement groove 140, the shield 400 occupies a certain space, and the thicker the shield 400, the smaller the space left for the placement groove 140 to the magnet 300, thereby further reducing the suction force of the stylus 10. When the thickness of the shield 400 is less than 0.15mm, this may cause difficulty in processing the shield 400, resulting in excessive manufacturing costs.

Further, referring to fig. 3, in some embodiments, the distance between the shielding member 400 and the circuit board 200 is 0.8mm to 1mm. The distance between the shield 400 and the circuit board 200 is denoted as L2. The distance between the shield 400 and the circuit board 200 in this application refers to the minimum distance between the shield 400 and the circuit board 200. Specifically, when the distance between the shield 400 and the circuit board 200 is greater than 1mm, the shield 400 and the magnet 300 are commonly placed in the placement groove 140, the circuit board 200 is placed in the accommodating chamber 130, and a certain free space is provided between the shield 400 and the circuit board 200, which causes other spaces of the housing 100 to be smaller, such as the space of the placement groove 140 or the space of the accommodating chamber 130 to be smaller, the larger the free space is. When the placement groove 140 and the receiving chamber 130 are excessively small, a plurality of components may not be formed, thereby reducing the function of the stylus 10. When the distance between the shield 400 and the circuit board 200 is less than 0.8mm, the shield 400 may have poor effect of shielding the magnetic field of the magnet 300 toward the circuit board 200.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. The stylus is characterized by comprising:

a housing having a receiving cavity;

the circuit board is arranged in the accommodating cavity;

a magnet connected to the housing;

the shielding piece is connected to the shell, is arranged between the circuit board and the magnet, and is made of a magnetism isolating material.

2. The stylus of claim 1, wherein the housing is provided with a placement groove, the placement groove and the receiving cavity being spaced apart from each other, the magnet and the shield each being disposed in the placement groove.

3. The stylus of claim 2, wherein the shield is provided with a fixed slot in which the magnet is disposed.

4. A stylus according to claim 3, wherein the magnet comprises a first surface and a plurality of second surfaces, the first surface facing the circuit board, the plurality of second surfaces surrounding the first surface and being commonly connected to the first surface, the walls of the fixed slot wrapping the first surface and the second surface.

5. The stylus of claim 2, wherein the housing comprises a first shell and a second shell, the first shell being coupled to the second shell to form the receiving cavity, the second shell being provided with the placement groove on a side facing away from the receiving cavity.

6. The stylus of claim 1, wherein the N-poles and S-poles of the magnets are opposite to each other, the magnets are provided in three, the three magnets are distributed along a length direction of the stylus, the three magnets are a first magnet, a second magnet, and a third magnet, respectively, the S-poles of the second magnet are oriented toward the first magnet, the N-poles of the second magnet are oriented toward the third magnet, the N-poles of the first magnet are oriented toward the circuit board, and the S-poles of the third magnet are oriented toward the circuit board.

7. The stylus of claim 1, wherein the shield has a thickness of 0.1mm to 0.15mm.

8. The stylus of claim 1, wherein a distance between the shield and the circuit board is 0.8 mm-1 mm.

9. The stylus of claim 1, wherein the shield is steel.

10. The stylus is characterized by comprising:

a housing having a receiving cavity;

the circuit board is arranged in the accommodating cavity;

a magnet connected to the housing;

the shell comprises a shielding part, wherein the shielding part is arranged between the circuit board and the magnet, and the shielding part is made of a magnetic isolation material.