Capacitance pen

Abstract

The invention discloses a capacitance pen, and relates to the technical field of capacitance pens, the capacitance pen comprises a pen main body, a circuit board and a battery assembly, the pen main body comprises a pen tube and a first connecting piece, the pen tube is provided with a mounting cavity, the first connecting piece is arranged in the mounting cavity, the circuit board is arranged in the mounting cavity, and the first connecting piece is electrically connected with the circuit board; the battery assembly comprises a battery and a second connecting piece, the second connecting piece is connected to the end of the battery and electrically connected with the battery, the battery extends into the mounting cavity, the second connecting piece is detachably connected to the first connecting piece, and the second connecting piece is in circuit conduction connection with the first connecting piece. The invention aims to simplify the structure of the capacitance pen on the basis of realizing detachable connection of the battery in the capacitance pen and circuit conduction.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitive pens, and particularly to a capacitive pen. Background Art

[0002] A capacitive pen is an electronic input device designed based on the principle of capacitive touch, mainly used for precise operation of touch screen devices (such as tablet computers, smart phones, drawing tablets, etc.). To meet the requirements of portability and long battery life, a type of capacitive pen generally adopts a detachable design for the built-in battery.

[0003] To achieve the detachable function of the battery, a limiting structure is usually provided on the inner cavity wall of the capacitive pen, and the detachable connection with the battery is realized through the limiting structure. However, setting the limiting structure alone not only makes the overall structure of the capacitive pen relatively complex, but also requires a separate arrangement of the circuit connection structure, thus occupying more space in the inner cavity of the capacitive pen and further increasing the complexity of the overall structure. Summary of the Invention

[0004] The main object of the present invention is to propose a capacitive pen, aiming to simplify the structure of the capacitive pen on the basis of realizing the detachable connection of the internal battery of the capacitive pen and the circuit conduction.

[0005] To achieve the above object, the present invention proposes a capacitive pen, which includes: A pen body, the pen body includes a pen tube and a first connector, the pen tube is provided with an installation cavity, and the first connector is arranged in the installation cavity; A circuit board, the circuit board is arranged in the installation cavity, and the first connector is electrically connected to the circuit board; and A battery assembly, the battery assembly includes a battery and a second connector, the second connector is connected to the end of the battery and is electrically connected to the battery, the battery extends into the installation cavity, and the second connector is detachably connected to the first connector, and the second connector is electrically connected to the first connector in a circuit-conducting manner.

[0006] In one embodiment, one of the first connector and the second connector is provided with a latching portion, and the other of the first connector and the second connector is provided with an elastic latching portion; The elastic latching portion is limited and latched to the latching portion.

[0007] In one embodiment, the elastic latching portion is a metal elastic sheet, and the elastic latching portion is electrically connected to one of the circuit board or the battery; The capacitive pen further includes a conductive member, the conductive member is arranged in the latching portion, the elastic latching portion abuts against the conductive member, and the conductive member is electrically connected to the other of the circuit board or the battery.

[0008] In one embodiment, the conductive member is one of a conductive capsule, a conductive probe pin, a conductive sheet, and a conductive spring.

[0009] In one embodiment, the engaging portion includes at least two engaging protrusions, and the engaging protrusions enclose a card slot. The notch of the card slot faces the elastic engaging portion along the extending direction of the pen tube. The elastic engaging portion can extend into the card slot and be limited in the card slot.

[0010] In one embodiment, the engaging protrusion includes a first surface and a second surface connected to each other. The first surface faces the elastic engaging portion, and the second surface faces away from the elastic engaging portion. Each of the second surfaces encloses the card slot, and the elastic engaging portion is limited in the card slot and abuts against the second surface.

[0011] In one embodiment, the plane where the first surface is located is arranged at an angle to the plane where the second surface is located. And / or, the first surface and the second surface are connected in a smooth transition.

[0012] In one embodiment, the elastic engaging portion includes a supporting section and a deformation section. One end of the supporting section is connected to the battery or the circuit board, and the other end of the supporting section is connected to the deformation section. The deformation section can generate elastic deformation so that the deformation section is limited in the card slot.

[0013] In one embodiment, the deformation section includes a first protrusion and a second protrusion. The first protrusion and the second protrusion are connected to the supporting section, and one ends of the first protrusion and the second protrusion away from the supporting section are connected to each other. The engaging portion squeezes the first protrusion and the second protrusion to approach each other, so that the deformation section generates elastic deformation.

[0014] In one embodiment, the pen tube is provided with an installation opening, the installation opening is communicated with the installation cavity, and the pen tube is provided with a limiting ring platform around the installation opening. One end of the battery assembly away from the first connecting member is limited and abutted against the limiting ring platform.

[0015] In one embodiment, the battery assembly further includes an installation cylinder and an end cover. The second connecting member and the end cover are respectively arranged at two port ends of the installation cylinder, and the battery is limited in the installation cylinder. The installation cylinder penetrates through the installation opening and extends into the installation cavity, and the end cover is limited and abutted against the limiting ring platform.

[0016] In one embodiment, the end cap is provided with an abutting surface and a spaced surface, the abutting surface surrounds the mounting cylinder and is connected to the side wall of the mounting cylinder; The spaced surface is connected to a side of the abutting surface away from the side wall of the mounting cylinder, the abutting surface abuts against the limiting ring platform, and the spaced surface is disposed at an interval from the limiting ring platform.

[0017] In one embodiment, the battery assembly further includes a bottom cover, the bottom cover and the end cap are respectively disposed at two end ports of the mounting cylinder, and the bottom cover is detachably connected to the mounting cylinder; And / or, the battery assembly further includes a bottom cover, the bottom cover and the end cap are respectively disposed at two end ports of the mounting cylinder, and the second connecting member is detachably connected to the bottom cover; And / or, the end cap is detachably connected to the mounting cylinder.

[0018] In one embodiment, a positioning plane is provided on the inner wall of the pen tube, the mounting cylinder includes a main body section and a positioning section, the positioning section is connected to the main body section, and the positioning section limits and abuts against the positioning plane so that the mounting cylinder is limited in the mounting cavity.

[0019] The capacitive pen of the technical solution of the present invention includes a pen body, a circuit board and a battery assembly. The pen body includes a pen tube and a first connecting member. The pen tube is provided with a mounting cavity. The first connecting member is disposed in the mounting cavity. The circuit board is disposed in the mounting cavity. The first connecting member is electrically connected to the circuit board. The battery assembly includes a battery and a second connecting member. The second connecting member is connected to an end of the battery and is electrically connected to the battery. The battery extends into the mounting cavity and the second connecting member is detachably connected to the first connecting member. The second connecting member is electrically connected to the first connecting member in a conductive manner. By directly detachably connecting the first connecting member and the second connecting member, the detachable connection between the battery assembly and the pen body is realized. And on the basis of the detachable connection between the first connecting member and the second connecting member, the electrical conduction connection between the first connecting member and the second connecting member can also be realized to achieve the electrical conduction connection between the battery and the circuit board, thereby realizing the integrated design of detachable connection and electrical conduction, simplifying the overall structure of the capacitive pen, improving the space utilization rate inside the mounting cavity, and ensuring the structural integrity of the pen body to maintain the structural strength of the pen body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0021] Figure 1Schematic diagram of the structure of a capacitive pen in an embodiment of the present invention; Figure 2 is Figure 1 Schematic cross-sectional view at A-A in; Figure 3 is Figure 2 Enlarged schematic view at A in; Figure 4 is Figure 1 Schematic cross-sectional view at B-B in; Figure 5 is Figure 4 Enlarged schematic view at B in; Figure 6 is Figure 4 Enlarged schematic view at C in; Figure 7 is Figure 1 Schematic cross-sectional view at C-C in; Figure 8 Abbreviated schematic diagram of the structure of a capacitive pen in an embodiment of the present invention; Figure 9 Exploded schematic diagram of a battery component pen in an embodiment of the present invention; Figure 10 Schematic diagram of the structure of an elastic clamping portion in an embodiment of the present invention.

[0022] Explanation of the reference numerals in the drawings: 100, capacitive pen; 1, pen body; 11, pen tube; 111, installation cavity; 1111, positioning plane; 112, installation opening; 113, limiting ring platform; 12, first connecting member; 121, engaging portion; 1211, engaging protrusion; 1212, engaging groove; 1213, first surface; 1214, second surface; 2, circuit board; 3, battery component; 31, battery; 32, second connecting member; 321, elastic clamping portion; 3211, supporting section; 3212, deformation section; 3213, first protrusion; 3214, second protrusion; 3215, entering surface; 3216, exiting surface; 33, installation cylinder; 331, main body section; 332, positioning section; 34, end cap; 341, installation surface; 3411, abutting surface; 3412, spaced surface; 35, bottom cover; 4, conductive member.

[0023] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] Please refer to Figures 1 to 9 As shown, the present invention provides a capacitive pen 100. The capacitive pen 100 includes a pen body 1, a circuit board 2, and a battery assembly 3. The pen body 1 includes a pen tube 11 and a first connector 12. The pen tube 11 is provided with an installation cavity 111. The first connector 12 is disposed in the installation cavity 111. The circuit board 2 is disposed in the installation cavity 111. The first connector 12 is electrically connected to the circuit board 2. The battery assembly 3 includes a battery 31 and a second connector 32. The second connector 32 is connected to the end of the battery 31 and is electrically connected to the battery 31. The battery 31 extends into the installation cavity 111, and the second connector 32 is detachably connected to the first connector 12. The second connector 32 is electrically connected to the first connector 12 in a conductive manner.

[0028] In this embodiment, the capacitive pen 100 is an input tool for touch screen devices (such as smart phones, tablets, etc.). Its working principle is to use capacitive sensing technology and can simulate the touch of a finger on the touch screen. The capacitive pen 100 usually consists of a pen tip and a pen body. The pen tip is usually made of a conductive material so as to be able to interact with the capacitive sensing layer of the touch screen. The capacitive pen 100 includes a pen main body 1, a circuit board 2, and a battery assembly 3. Among them, the pen main body 1 is the main support structure of the capacitive pen 100. The pen main body 1 includes a pen tube 11 and a first connecting member 12. The pen tube 11 is of a tubular, shell-shaped, or cylindrical structure to provide structural support and appearance protection for the capacitive pen 100. At the same time, an installation cavity 111 is provided inside the pen tube 11, and the first connecting member 12 is arranged in the installation cavity 111.

[0029] Among them, the first connecting member 12 can be fixed in the installation cavity 111 or detachably arranged in the installation cavity 111, which is not limited here. The first connecting member 12 located in the installation cavity 111 is at the center of the installation cavity 111, that is, the cavity wall of the installation cavity 111 surrounds the first connecting member 12. At the same time, the first connecting member 12 and the cavity opening of the installation cavity 111 are spaced apart relatively, so that when the battery assembly 3 extends into the installation cavity 111, it can be limited between the first connecting member 12 and the cavity opening of the installation cavity 111.

[0030] In this embodiment, as Figures 2 to 5 shown, the battery assembly 3 includes a battery 31 and a second connecting member 32. The battery 31 can be a dry battery 31 or a lithium battery 31. To enable the battery 31 to be installed in the installation cavity 111, the battery 31 has a length direction along the tube body extension direction of the pen tube 11, that is, the battery 31 is of a long strip-shaped, columnar, or rod-shaped structure. The second connecting member 32 is connected to one end of the battery 31 along the length direction. At the same time, the second connecting member 32 is electrically connected to the battery 31. When the battery 31 extends into the installation cavity 111, the second connecting member 32 is detachably connected to the first connecting member 12, that is, the capacitive pen 100 has a connection state in which the battery 31 extends into the installation cavity 111 and the first connecting member 12 and the second connecting member 32 are connected, and a disconnection state in which the first connecting member 12 and the second connecting member 32 are disconnected and the battery 31 is separated from the installation cavity 111.

[0031] At the same time, the capacitive pen 100 further includes a circuit board 2. The circuit board 2 provides functions such as signal processing, touch control logic, and power management for the capacitive pen 100. The circuit board 2 is arranged in the installation cavity 111 and is detachably connected to the pen tube 11. Among them, the first connecting member 12 is electrically connected to the circuit board 2 and the circuit is conducted. The second connecting member 32 is electrically connected to the battery 31 and the circuit is conducted. When the first connecting member 12 and the second connecting member 32 are connected to make the capacitive pen 100 in a connected state, the battery 31 is electrically connected to the circuit board 2 to supply power to the circuit board 2.

[0032] It can be understood that the first connecting member 12 and the second connecting member 32 can be snap-fitting members and buckle members. For example, one of the first connecting member 12 and the second connecting member 32 is a hole structure such as a slot 1212, a connecting slot, a connecting hole, etc., and the other of the first connecting member 12 and the second connecting member 32 is a structure such as a hook, a buckle, a plug, etc., so that the above-mentioned hook and buckle can be extended into the hole structure to achieve snap connection. At the same time, the first connecting member 12 and the second connecting member 32 can also be detachably connected by means of magnetic attraction, threaded connection, etc., which is not limited here.

[0033] It can be understood that the detachable connection between the first connector 12 and the second connector 32 is used to realize the detachable connection between the battery 31 and the pen body 1, so that the battery 31 can be replaced and upgraded, which is convenient for users to use. Users can install the battery 31 by pushing and pulling it. Moreover, in the traditional capacitive stylus 100, the mechanical limiting structure of the battery 31 and the circuit connection structure between the circuit board 2 and the battery 31 are separately arranged, which not only has a complex structure, but also occupies more space inside the installation cavity 111, making it impossible to use a higher capacity battery 31, and is not conducive to the lightweight and portability of the capacitive stylus 100.

[0034] Therefore, based on the above problems, on the basis of the mutual mechanical connection between the first connecting member 12 and the second connecting member 32, the circuit between the first connecting member 12 and the second connecting member 32 is also synchronously connected, so as to realize the circuit connection between the battery 31 and the circuit board 2, as well as the circuit connection between the two, so as to realize the integrated setting of the mechanical connection and circuit connection of the first connecting member 12 and the second connecting member 32, effectively simplify the internal structure of the capacitive pen 100, reduce component redundancy, and at the same time, improve the space utilization inside the installation cavity 111, so that a smaller and thinner pen tube 11 can be used without changing the circuit board 2 and the battery 31, thereby improving the lightweight and portability of the capacitive pen 100. At the same time, more space can be left for placing a battery 31 with a larger capacity, and for placing other functional modules.

[0035] Furthermore, through the direct detachable connection and circuit conduction between the first connecting member 12 and the second connecting member 32, there is no need to groove or set other limiting structures on the wall of the installation cavity 111 inside the pen tube 11 to ensure the overall thickness of the pen tube 11 is consistent, thereby ensuring the overall structural strength of the pen tube 11 and reducing the processing stress generated by processing inside the pen tube 11, so as to effectively improve the reliability of the pen body 1 and the capacitive pen 100.

[0036] The capacitive pen 100 of the technical solution of the present invention includes a pen body 1, a circuit board 2 and a battery assembly 3. The pen body 1 includes a pen tube 11 and a first connector 12. The pen tube 11 is provided with an installation cavity 111. The first connector 12 is arranged in the installation cavity 111. The circuit board 2 is arranged in the installation cavity 111. The first connector 12 is electrically connected to the circuit board 2. The battery assembly 3 includes a battery 31 and a second connector 32. The second connector 32 is connected to the end of the battery 31 and is electrically connected to the battery 31. The battery 31 extends into the installation cavity 111, and the second connector 32 is detachably connected to the first connector 12. The second connector 32 is electrically connected to the first connector 12 in a conductive manner. By directly detachably connecting the first connector 12 and the second connector 32, the detachable connection between the battery assembly 3 and the pen body 1 is realized. And on the basis of the detachable connection between the first connector 12 and the second connector 32, the electrical connection between the first connector 12 and the second connector 32 can also be realized, so as to realize the electrical connection between the battery 31 and the circuit board 2, thereby realizing the integrated design of detachable connection and electrical connection, simplifying the overall structure of the capacitive pen 100, improving the space utilization rate inside the installation cavity 111, and ensuring the structural integrity of the pen body 1 to maintain the structural strength of the pen body 1.

[0037] In one embodiment, as Figures 2 to 5 shown, one of the first connector 12 and the second connector 32 is provided with a clamping portion 121, and the other of the first connector 12 and the second connector 32 is provided with an elastic clamping portion 321; the elastic clamping portion 321 is limited and clamped to the clamping portion 121.

[0038] It can be understood that the clamping portion 121 can be a convex structure or a groove structure. The elastic clamping portion 321 is a convex structure or a groove structure with elasticity. Specifically, when the clamping portion 121 is a groove structure, the elastic clamping portion 321 is a convex structure. For example, when the clamping portion 121 is a card slot 1212, a card hole, a card hole and other structures, and the elastic clamping portion 321 is a resilient clamping post, a card, a hook and other structures, so that the elastic clamping portion 321 can extend into the clamping portion 121 to realize the clamping of the clamping portion 121 and the elastic clamping portion 321.

[0039] It can be understood that the elastic clamping portion 321 can be a clamping structure made of an elastic material, or a clamping structure with elasticity designed as an arched structure, an elastic arm structure or a closed ring structure. The elastic clamping portion 321 can extend into the hole groove structure of the clamping portion 121 and deform under the pressure of the clamping portion 121 to store elastic potential energy. When the battery 31 group reaches the predetermined position, the elastic clamping portion 321 recovers its deformation, and the elastic clamping portion 321 is snapped into the groove gap of the clamping portion 121 to realize the mechanical locking of the clamping portion 121 and the elastic clamping portion 321, thereby realizing the mechanical connection between the battery 31 and the pen body 1.

[0040] Meanwhile, the snap connections of the elastic snap portion 321 and the engaging portion 121 are both arranged along the axial direction of the pen tube 11. That is, when the user pushes or pulls the battery 31 along the axial direction of the pen tube 11, the connection and separation of the elastic snap portion 321 and the engaging portion 121 can be realized. The operation is simple, which is convenient for the user to install and remove the battery 31, and can avoid grooving or specifically machining related limiting structures on the inner wall of the installation cavity 111 of the pen tube 11, reducing the processing stress generated by machining the pen tube 11, so as to improve the structural strength of the pen tube 11 and enhance the reliability and durability of the capacitive pen 100.

[0041] In one embodiment, as Figures 2 to 5 and Figures 8 to 10 shown, the elastic snap portion 321 is a metal spring piece, and the elastic snap portion 321 is electrically connected to one of the circuit board 2 or the battery 31; the capacitive pen 100 further includes a conductive member 4, the conductive member 4 is arranged on the engaging portion 121, the elastic snap portion 321 abuts against the conductive member 4, and the conductive member 4 is electrically connected to the other of the circuit board 2 or the battery 31.

[0042] In this embodiment, the elastic snap portion 321 is a metal spring piece. The metal spring piece can be arched, or can be a cantilever shape with one end fixed and the other end suspended, or can be a ring shape surrounding in a ring, so that when the elastic snap portion 321 is inserted or extends into the engaging portion 121, elastic deformation occurs, and when it completely enters the engaging portion 121, it restores its shape to be limited in the engaging portion 121 to achieve mechanical locking. Among them, the material of the metal spring piece can be stainless steel (SUS 301 / 304), beryllium copper (BeCu) or phosphor bronze, etc. The above materials have excellent elastic deformation ability and can be bent repeatedly without being easily fatigued and broken.

[0043] Meanwhile, the capacitive pen 100 further includes a conductive member 4. The conductive member 4 is a metal conductive structure, such as copper or stainless steel, etc. The conductive member 4 is arranged on the engaging portion 121, such as being bonded, snapped or welded to the engaging portion 121. After the elastic snap portion 321 is snapped with the engaging portion 121, the elastic snap portion 321 can abut against the conductive sheet to realize the electrical connection between the elastic snap portion 321 of the metal spring piece structure and the conductive sheet.

[0044] In one embodiment, the conductive member 4 is one of a conductive capsule, a conductive spring pin, a conductive sheet and a conductive spring.

[0045] In this embodiment, the engaging portion 121 is provided with a mounting hole, the conductive member 4 is limited and arranged in the mounting hole, and one end of the conductive member 4 is electrically connected to the circuit board 2, such as being connected and conducted through a gold wire or being conducted by circuit abutment. The other end of the conductive member 4 abuts against the elastic snap portion 321, so that the elastic snap portion 321 is electrically connected to the conductive member 4, thereby realizing the electrical connection between the battery 31 and the circuit board 2.

[0046] In this embodiment, the conductive capsule includes a capsule shell and conductive particles. The capsule shell is the main support structure of the conductive member 4. The material of the capsule shell is a polymer, such as polylactic acid, polyvinyl alcohol, polyurethane elastomer, etc., or it can also be an elastic material such as silica gel, rubber, silicone rubber, fluororubber, etc. The conductive particles can be metal nanoparticles (such as silver particles, copper particles, etc.), carbon nanotubes, graphene, carbon fiber, conductive polymers and other non-metallic conductive media. The structure of the conductive particles can be rod-shaped, fibrous, granular, etc. The conductive particles are evenly distributed in the elastic body to provide an electron conduction path and enable the detection electrode to achieve circuit conduction.

[0047] It can be understood that, based on the electrical connection and conduction achieved by the conductive particles, the conductive capsule also has a certain elasticity and deformation ability. When the elastic clamping portion 321 abuts against the conductive member 4, the conductive capsule can generate elastic deformation by itself, so as to ensure that the elastic clamping portion 321 and the conductive capsule are in close contact, so as to achieve stable and tight electrical conduction between the circuit board 2 and the battery 31. Moreover, the end of the conductive capsule is a hemispherical structure. When the elastic clamping portion 321 abuts against the conductive member 4, it can also ensure that the elastic clamping portion 321 and the conductive capsule have a large contact area 3411, improving the stability of circuit conduction.

[0048] The conductive member 4 in this application can also be an integrally provided conductive spring needle. The outer wall of the conductive spring needle is hermetically abutted against the wall of the mounting hole, and one end of the conductive spring needle is electrically connected to the circuit board 2, and the other end of the conductive spring needle abuts against the elastic clamping portion 321. By providing the conductive spring needle, when the elastic clamping portion 321 abuts against the conductive member 4, the needle tip of the conductive spring needle can squeeze the internal spring to generate elastic deformation, so as to ensure that the elastic clamping portion 321 and the conductive spring needle are in close contact, so as to achieve stable and tight electrical conduction between the circuit board 2 and the battery 31.

[0049] Furthermore, the conductive member 4 can also be a conductive sheet. Among them, the conductive sheet can be an arched structure formed by stamping. One end of the conductive member 4 is connected to the circuit board 2 by a gold wire or welding, or directly abuts against the circuit board 2. The other end of the conductive member 4 abuts against the elastic clamping portion 321. Or, the conductive member 4 is a conductive spring. One end of the elastic clamping portion 321 can extend into the conductive spring and abut against the conductive spring. The end of the conductive spring away from the elastic clamping portion 321 abuts against or is connected to or welded to the circuit board 2 to achieve the circuit conduction between the elastic clamping portion 321 and the conductive member 4.

[0050] It can be understood that the conductive member 4 provided in the engaging portion 121 is electrically connected to one of the circuit board 2 or the battery 31, such as by gold wire connection, welding connection, abutting, etc., and the elastic engaging portion 321 is electrically connected to the other of the circuit board 2 or the battery 31, such as by gold wire connection, welding connection, abutting, etc. When the elastic engaging portion 321 is limited in the engaging portion 121, the elastic engaging portion 321 abuts against the conductive member 4, and the elastic engaging portion 321 and the conductive member 4 achieve electrical conduction, thereby realizing electrical conduction between the battery 31 and the circuit board 2.

[0051] It can be understood that when the battery 31 is pushed to move along the axial direction of the pen tube 11, the battery 31 extends into the installation cavity 111, and gradually mechanically engages the elastic engaging portion 321 with the engaging portion 121, thereby realizing the installation and fixation of the battery 31. And the battery 31 is electrically connected through the elastic engaging portion 321 and the conductive member 4, so as to realize electrical conduction connection with the circuit board 2 on the basis of mechanical engagement, thereby realizing an integrated structure of mechanical connection and conductive connection. This not only reduces the related component structures for limiting and conducting electricity, simplifies the design, manufacturing and assembly processes, but also avoids occupying too much space in the installation cavity 111, so as to improve the lightness and convenience of the capacitive pen 100. And the elastic engaging portion 321 and the engaging portion 121 are mechanically connected along the axial direction of the pen tube 11 on the installation cavity 111, so as to reduce the need to slot or set related structures on the pen body 1, thereby ensuring the structural integrity and structural strength of the pen body 1, and improving the reliability and durability of the capacitive pen 100.

[0052] In one embodiment, as Figure 3 and Figure 5 shown, the engaging portion 121 includes at least two engaging protrusions 1211, and each engaging protrusion 1211 encloses to form a card slot 1212. The slot opening of the card slot 1212 is arranged towards the elastic engaging portion 321 along the extending direction of the pen tube 11; the elastic engaging portion 321 can extend into the card slot 1212 and be limited in the card slot 1212.

[0053] In this embodiment, the engaging protrusion 1211 is a protruding structure, such as a hook-shaped engaging protrusion 1211 with a barb at the end or a wedge-shaped engaging protrusion 1211 in the shape of a trapezoid or an inverted triangle. Each engaging protrusion 1211 is symmetrically distributed, such as symmetrically distributed along a straight line or symmetrically distributed in a ring along a circumference, so that each engaging protrusion 1211 encloses to form a card slot 1212, and the slot opening of the card slot 1212 is arranged towards the elastic engaging portion 321, so that the elastic engaging portion 321 can extend into the card slot 1212 and finally be limited in the card slot 1212.

[0054] It can be understood that a guiding inclined surface is provided on one side of the clamping protrusion 1211 facing the elastic clamping portion 321. When the battery 31 is pushed along the axis of the pen tube 11, the elastic clamping portion 321 can move along the guiding inclined surface. At the same time, the elastic clamping portion 321 starts to generate elastic deformation under the limiting abutment of each clamping protrusion 1211. After the elastic clamping portion 321 extends into the clamping groove 1212, the elastic clamping portion 321 restores its shape and is limited in the clamping groove 1212. At this time, the elastic clamping portion 321 is limited and abuts against the side of the clamping protrusion 1211 facing away from the guiding inclined surface. The above-mentioned conductive member 4 is arranged on the clamping protrusion 1211 and is located in the clamping groove 1212 to abut against the elastic clamping portion 321 limited in the clamping groove 1212.

[0055] It can be understood that through the cooperation of the clamping protrusions 1211 and the elastic clamping portions 321, the mechanical fixed connection between the first connecting member 12 and the second connecting member 32 can be realized, so as to realize the fixation of the battery 31. And the arrangement of at least two clamping protrusions 1211 can also surround the elastic clamping portions 321 by forming the clamping grooves 1212, so as to improve the connection strength between the clamping portion 121 and the elastic clamping portion 321, and can also limit the shaking of the elastic clamping portion 321 to ensure the stable electrical connection between the elastic clamping portion 321 and the conductive member 4.

[0056] In an embodiment, as Figure 3 and Figure 5 shown, the clamping protrusion 1211 includes a connected first surface 1213 and a second surface 1214. The first surface 1213 faces the elastic clamping portion 321, and the second surface 1214 faces away from the elastic clamping portion 321; each second surface 1214 encloses to form the clamping groove 1212, and the elastic clamping portion 321 is limited in the clamping groove 1212 and abuts against the second surface 1214.

[0057] In this embodiment, the first surface 1213 and the second surface 1214 are inclined planes or curved surfaces with arcs, and the first surface 1213 and the second surface 1214 are arranged at an angle, and the first surface 1213 faces the elastic clamping portion 321, and the second surface 1214 faces away from the elastic clamping portion 321. Among them, the first surface 1213 is the above-mentioned guiding inclined surface, and the second surfaces 1214 of each clamping protrusion 1211 jointly enclose to form the clamping groove 1212. When the battery 31 drives the second connecting member 32 to move, the elastic clamping portion 321 abuts against the first surface 1213 and gradually moves along the first surface 1213. At this time, the elastic clamping portion 321 gradually generates elastic deformation during the movement and enters the clamping groove 1212 along the notch of the clamping groove 1212. After entering the clamping groove 1212, the elastic clamping portion 321 restores its shape and abuts against the second surface 1214 to be limited in the clamping groove 1212.

[0058] It can be understood that by setting the first surface 1213, the elastic clamping portion 321 can be accurately guided to move without alignment, improving the fault tolerance of use. And the first surface 1213 arranged obliquely can gradually squeeze the elastic clamping portion 321 to reduce the resistance of the elastic clamping portion 321 entering the card slot 1212, so that the elastic clamping portion 321 generates elastic deformation and can extend into the slot opening of the card slot 1212. At the same time, by setting the second surface 1214 at an angle with the first surface 1213, after the elastic clamping portion 321 enters the card slot 1212, the elastic clamping portion 321 can automatically rebound to be limited and abutted against the second surface 1214, realizing automatic biting and locking, so as to ensure the firm connection between the clamping portion 121 and the elastic clamping portion 321 and prevent the battery 31 from generating axial displacement or even axial detachment.

[0059] Meanwhile, when disassembling the battery 31, the battery 31 can be directly pulled along the axis direction of the pen tube 11, and the elastic clamping portion 321 moves along the second surface 1214 arranged obliquely or in an arc surface again. The elastic clamping portion 321 generates elastic deformation and gradually exits the card slot 1212, so as to realize the separation between the elastic clamping portion 321 and the clamping portion 121, and thus realize the separation between the battery assembly 3 and the pen body 1, which is convenient for users to use.

[0060] Wherein, the connection between the first surface 1213 and the second surface 1214 is a smooth transition connection (arc transition connection), that is, the card convex 1211 is an arc surface at the connection between the first surface 1213 and the second surface 1214. When the elastic clamping portion 321 enters the card slot 1212 from the first surface 1213 or exits the card slot 1212 from the second surface 1214, it can move smoothly and stably between the first surface 1213 and the second surface 1214, improving the use comfort, reducing the elastic deformation of the elastic clamping portion 321 in a large range instantaneously, and prolonging the service life of the elastic clamping portion 321.

[0061] In an embodiment, as Figure 3 、 Figure 5 and Figure 10 shown, the elastic clamping portion 321 includes a support section 3211 and a deformation section 3212. One end of the support section 3211 is connected to the battery 31 or the circuit board 2, and the other end of the support section 3211 is connected to the deformation section 3212; the deformation section 3212 can generate elastic deformation so that the deformation section 3212 is limited in the card slot 1212.

[0062] In this embodiment, the support section 3211 and the deformation section 3212 can be integrally formed, such as by stamping, bending or other methods, or can be a detachable connection structure, such as by plugging, screwing or other methods. One end of the support section 3211 is connected to the end of the battery 31 or the circuit board 2 and is electrically connected to the battery 31 or the circuit board 2 in a conductive manner. For example, welding feet are provided to be welded to the contacts of the battery 31 or the circuit board 2, or snap feet are provided to be snapped or crimped to the contacts of the battery 31 or the circuit board 2. The other end of the support section 3211 is connected to the deformation section 3212.

[0063] Meanwhile, the deformation section 3212 is connected to the support section 3211. The deformation section 3212 includes an entry surface 3215 and an exit surface 3216. Both the entry surface 3215 and the exit surface 3216 are inclined planes or outwardly convex arc surfaces, so that the entry surface 3215 and the exit surface 3216 are arranged at an angle. When installing the battery 31, the elastic clamping portion 321 abuts against the clamping protrusion 1211, the entry surface 3215 abuts against the first surface 1213, and as the battery 31 gradually extends into the installation cavity 111, the entry surface 3215 slides along the first surface 1213, causing the deformation section 3212 to gradually generate elastic deformation and gradually enter the slot 1212 from the slot opening of the slot 1212. After entering the slot 1212, the deformation section 3212 resumes its shape, and the exit surface 3216 is limited to abut against the second surface 1214 to limit the deformation section 3212 by the clamping protrusion 1211. At the same time, when removing the battery 31, the exit surface 3216 slides along the second surface 1214, causing the deformation section 3212 to gradually generate elastic deformation and gradually exit the slot 1212 from the slot opening of the slot 1212. After completely exiting the slot 1212, the deformation section 3212 resumes its shape.

[0064] It can be understood that the support section 3211 is used to rigidly fix the deformation section 3212 to provide strong support when the deformation section 3212 extends into the slot 1212 and when the deformation section 3212 deforms, to prevent the deformation section 3212 from shaking or displacing, and to ensure that the deformation section 3212 moves along the axis of the pen tube 11, thereby ensuring the alignment accuracy between the first connector 12 and the second connector 32. At the same time, the deformation section 3212 itself encloses a deformation space. When entering and exiting the slot 1212, elastic deformation can be generated by compressing the deformation space, so as to realize the clamping and detachment with the engaging portion 121, and to realize the mechanical connection and detachment of the battery 31.

[0065] Moreover, both the support section 3211 and the deformation section 3212 are metal elastic pieces. The support section 3211 and the deformation section 3212 can be integrally formed by bending or stamping the metal, so as to be in elastic deformation and mechanically locked with the engaging portion 121, and at the same time, to abut against the conductive member 4 to achieve electrical conduction.

[0066] In one embodiment, such asFigure 3 , Figure 5 and Figure 10 As shown in Figure 10 , the deformation section 3212 includes a first protrusion 3213 and a second protrusion 3214. The first protrusion 3213 and the second protrusion 3214 are connected to the support section 3211, and one ends of the first protrusion 3213 and the second protrusion 3214 away from the support section 3211 are connected to each other. The engaging portion 121 squeezes the first protrusion 3213 and the second protrusion 3214 to approach each other, so that the deformation section 3212 generates elastic deformation.

[0067] It can be understood that the entry surface 3215 and the exit surface 3216 are arranged at an angle to form the first protrusion 3213 and the second protrusion 3214 at the connection between the entry surface 3215 and the exit surface 3216, and both the first protrusion 3213 and the second protrusion 3214 are connected to the support section 3211, that is, the exit surface 3216 of the first protrusion 3213 and the second protrusion 3214 is connected to the support section 3211. When the elastic engaging portion 321 enters the card slot 1212, the entry surface 3215 abuts against the card protrusion 1211. At this time, the first protrusion 3213 and the second protrusion 3214 are compressed by the force and approach each other, so that the deformation section 3212 generates elastic deformation. When the elastic engaging portion 321 exits the card slot 1212, the exit surface 3216 abuts against the card protrusion 1211. At this time, the first protrusion 3213 and the second protrusion 3214 are compressed by the force and approach each other, so that the deformation section 3212 generates elastic deformation.

[0068] By providing the first protrusion 3213 and the second protrusion 3214, on the one hand, it can cooperate with the card slot 1212 formed by enclosing with the card protrusion 1211 to realize the engagement between the elastic engaging portion 321 and the engaging portion 121, and on the other hand, it can form the entry surface 3215 and the exit surface 3216 that are connected and arranged at an angle to each other, so as to facilitate mechanical locking by generating elastic deformation and extending into the card slot 1212 and being limited in the card slot 1212, or exiting the card slot 1212 to realize disengagement.

[0069] In one embodiment, as shown in Figure 2 , Figure 4 , Figure 6 and Figure 8 shown, the pen tube 11 is provided with an installation opening 112, the installation opening 112 is communicated with the installation cavity 111, and the pen tube 11 is provided with a limiting ring platform 113 around the installation opening 112; one end of the battery assembly 3 away from the first connecting member 12 is limited and abutted against the limiting ring platform 113.

[0070] In this embodiment, an installation opening 112 is provided at the end of one end of the pen tube 11 (such as the end away from the pen tip), and the installation opening 112 connects the installation cavity 111 and the external space, so that the battery assembly 3 can pass through the installation opening 112 and extend into the installation cavity 111. A limiting ring platform 113 is provided on the tube wall of the pen tube 11 at the installation opening 112. The limiting ring platform 113 is arranged in a ring shape. One end of the battery assembly 3 is detachably connected to the first connecting member 12 through the second connecting member 32, and the other end of the battery assembly 3 is limitedly abutted against the limiting ring platform 113.

[0071] It can be understood that by setting the limiting ring 113, the battery assembly 3 can be provided with axial limitation. On the one hand, it can prevent the battery 31 from being over-inserted into the installation cavity 111, resulting in the situation that the battery 31 cannot be removed. On the other hand, the limiting ring 113 can also cooperate with the detachable connection of the first connecting member 12 and the second connecting member 32 to achieve axial positioning of the battery 31 from both ends of the battery 31, so as to accurately determine the position of the battery 31, avoid the deviation or disconnection of the contact between the elastic clamping portion 321 and the conductive member 4 due to vibration, reduce the radial and axial shaking of the battery 31, and ensure the stability of the operation of the capacitive pen 100. In addition, the limiting ring 113 is set at the installation port 112, which also does not occupy the internal space of the installation cavity 111, and there is no need to set a limiting structure inside the installation cavity 111, so as to reduce the need to groove or set related structures on the pen body 1, simplify the overall structure of the capacitive pen 100, reduce redundant components, and ensure the structural integrity and structural strength of the pen body 1, thereby improving the reliability and durability of the capacitive pen 100.

[0072] In one embodiment, if Figures 2 to 6 as well as Figure 8 , Figure 9 As shown, the battery assembly 3 also includes a mounting tube 33 and an end cover 34. The second connecting member 32 and the end cover 34 are respectively arranged at the two ends of the mounting tube 33. The battery 31 is limited in the mounting tube 33; the mounting tube 33 passes through the mounting port 112 and extends into the mounting cavity 111, and the end cover 34 is limited to abut against the limiting ring 113.

[0073] In this embodiment, the battery assembly 3 includes a mounting cylinder 33 and an end cover 34. The mounting cylinder 33 is a hollow cylinder or columnar structure so that the battery 31 can be installed in the hollow part of the mounting cylinder 33. The end cover 34 is a flat cover or an arc-shaped cover. The end cover 34 is connected to the port at one end of the mounting cylinder 33 and covers the cylinder mouth of the mounting cylinder 33 so that the end cover 34 and the mounting cylinder 33 cooperate to form a limited space to limit the battery 31. The end cover 34 has an annular flange protruding from the mounting cylinder 33, and the annular flange is arranged in a ring around the cylinder body of the mounting cylinder 33. When the mounting cylinder 33 passes through the mounting port 112 and extends into the mounting cavity 111, the annular flange is limited and abutted against the limiting ring 113 to axially limit the battery assembly 3.

[0074] It can be understood that when the battery assembly 3 is entirely inserted into the installation cavity 111, the second connecting member 32 at one end of the installation cylinder 33 is engaged with the first connecting member 12 (or magnetically connected or threadedly connected, etc.). At this time, the end cap 34 at the other end of the installation cylinder 33 abuts against the limiting ring platform 113 through the annular flange to prevent the installation cylinder 33 and the battery 31 from further extending into the installation cavity 111, ensuring the precise butt-joint connection between the first connecting member 12 and the second connecting member 32. On the basis of ensuring precise and firm mechanical connection, it can also ensure the stability of the electrical connection between the elastic clamping member and the conductive member 4, so as to form positioning at both ends of the battery assembly 3 along its axial direction, facilitating the user to quickly disassemble and assemble.

[0075] In one embodiment, as Figure 6 shown, the end cap 34 is provided with an installation surface 341, the installation surface 341 faces the limiting ring platform 113, and the installation surface 341 includes a contact surface 3411 and a spacer surface 3412. The contact surface 3411 surrounds the installation cylinder 33 and is connected to the side wall of the installation cylinder 33. The spacer surface 3412 is connected to the side of the contact surface 3411 away from the side wall of the installation cylinder 33. The contact surface 3411 abuts against the limiting ring platform 113, and the spacer surface 3412 is spaced from the limiting ring platform 113.

[0076] In this embodiment, on the side of the annular flange of the end cap 34 facing the limiting ring platform 113, there is an installation surface 341. The installation surface 341 can be a flat surface or an arc surface. Preferably, at least part of the installation surface 341 is an arc surface. Specifically, the installation surface 341 includes a contact surface 3411 and a spacer surface 3412. The contact surface 3411 and the spacer surface 3412 can both be flat surfaces (in this case, the planes where the contact surface 3411 and the spacer surface 3412 are located are at an angle), or both can be arc surfaces. The contact surface 3411 and the spacer surface 3412 are both arranged in a ring shape around the installation cylinder 33. Among them, the contact surface 3411 is connected to the side wall of the installation cylinder 33, and the spacer surface 3412 is connected to the side of the contact surface 3411 away from the side wall of the installation cylinder 33. When the installation cylinder 33 extends into the installation cavity 111 and the first connecting member 12 and the second connecting member 32 are connected to each other, the contact surface 3411 abuts against the limiting ring platform 113. Preferably, the contact surface 3411 is a flat surface.

[0077] It can be understood that the installation surface 341 abuts against part of the limiting ring platform 113 through the contact surface 3411 to expose part of the limiting ring platform 113, and cooperates with the second connecting member 32 to limit the battery assembly 3, preventing excessive connection between the second connecting member 32 and the first connecting member 12 from causing damage, and ensuring the stability of the mechanical connection and the electrical connection between the first connecting member 12 and the second connecting member 32.

[0078] Meanwhile, by providing a spacer surface 3412 that has a certain clearance from the limiting ring platform 113, a user can insert a simple fin into the gap, and use the spacer surface 3412 to pry the end cap 34, thereby achieving the disassembly of the battery assembly 3.

[0079] In one embodiment, as Figures 2 to 5 and Figure 8 , Figure 9 shown, the battery assembly 3 further includes a bottom cover 35. The bottom cover 35 and the end cap 34 are respectively disposed at two port ends of the mounting cylinder 33, and the bottom cover 35 is detachably connected to the mounting cylinder 33; optionally, the second connecting member 32 is detachably connected to the bottom cover 35; optionally, the end cap 34 is detachably connected to the mounting cylinder 33.

[0080] It can be understood that the battery assembly 3 further includes a bottom cover 35. The bottom cover 35 and the end cap 34 are disposed at two port ends of the mounting cylinder 33, and the second connecting member 32 is connected to the bottom cover 35, so that when the bottom cover 35 is connected to the mounting cylinder 33, the elastic clamping portion 321 or the conductive member 4 in the second connecting member 32 is also electrically connected to the electrode of the battery 31. Among them, the second connecting member 32 can be integrally formed with the bottom cover 35 by injection molding or stamping, or can be detachably connected, so as to facilitate the replacement of the engaging portion 121 or the elastic clamping portion 321. Or if the bottom cover 35 is connected to the elastic clamping portion 321, and the elasticity of the elastic clamping portion 321 decreases after long-term use and the mechanical connection strength weakens, only the elastic clamping portion 321 can be replaced without replacing the entire battery assembly 3, effectively reducing the use cost. Moreover, setting the bottom cover 35 connected with the second connecting member 32 to be detachably connected to the mounting cylinder 33, and / or the detachable connection of the end cap 34 to the mounting cylinder 33 also facilitates opening the port of the mounting cylinder 33 to disassemble and replace the battery 31, prolonging the service life of the capacitive pen 100 and improving the maintainability of the capacitive pen 100.

[0081] In one embodiment, as Figure 7 shown, the inner wall of the pen tube 11 is provided with a positioning plane 1111. The mounting cylinder 33 includes a main body section 331 and a positioning section 332. The positioning section 332 is connected to the main body section 331, and the positioning section 332 is limited and abutted against the positioning plane 1111, so that the mounting cylinder 33 is limited in the mounting cavity 111.

[0082] It can be understood that the pen tube 11 is provided with a positioning plane 1111 on the inner wall of the mounting cavity 111, and the positioning section 332 of the mounting cylinder 33 is limited and abutted against the positioning plane 1111, so that the position of the mounting cylinder 33 relative to the pen tube 11 is kept fixed. By the positioning section 332 abutting against the positioning plane 1111, the circumferential rotation generated during the disassembly and assembly of the battery assembly 3 can be restricted, and on the basis of the accurate alignment connection of the first connecting member 12 and the second connecting member 32, the correct installation position of the mounting cylinder 33 can also be ensured, preventing the positive and negative electrodes of the battery 31 from being inserted reversely.

[0083] In another embodiment of the present invention, a sliding rail is provided on the inner wall of the pen tube 11, and a sliding groove is provided on the mounting cylinder 33. When the mounting cylinder 33 slides into the mounting cavity 111, the sliding groove can slide along the sliding rail to limit the position of the mounting cylinder 33 relative to the pen tube 11. On the basis of ensuring the accurate alignment connection between the first connecting member 12 and the second connecting member 32, the correct installation position of the mounting cylinder 33 can also be ensured, preventing the positive and negative electrodes of the battery 31 from being inserted reversely. Moreover, providing the sliding rail on the inner wall of the pen tube 11 is equivalent to providing a reinforcing rib for the pen tube 11, which can also enhance the structural strength of the pen tube 11, and improve the overall strength and reliability of the pen body 1 and the capacitive pen 100.

[0084] The above description is only an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A capacitive pen, characterized in that, The capacitive pen includes: A pen body, which includes a pen tube and a first connecting member. The pen tube is provided with an installation cavity, and the first connecting member is arranged in the installation cavity; A circuit board, which is arranged in the installation cavity, and the first connecting member is electrically connected to the circuit board; and A battery assembly, which includes a battery and a second connecting member. The second connecting member is connected to the end of the battery and is electrically connected to the battery. The battery extends into the installation cavity, and the second connecting member is detachably connected to the first connecting member, and the second connecting member is electrically connected to the first connecting member in a conductive manner.

2. The capacitive pen according to claim 1, wherein One of the first connecting member and the second connecting member is provided with a clamping portion, and the other of the first connecting member and the second connecting member is provided with an elastic clamping portion; The elastic clamping portion is limited and clamped to the clamping portion.

3. The capacitive pen according to claim 2, wherein, The elastic clamping portion is a metal elastic sheet, and the elastic clamping portion is electrically connected to one of the circuit board or the battery; The capacitive pen further includes a conductive member, which is arranged on the clamping portion, the elastic clamping portion abuts against the conductive member, and the conductive member is electrically connected to the other of the circuit board or the battery.

4. The capacitive pen according to claim 3, wherein, The conductive member is one of a conductive capsule, a conductive ejector pin, a conductive sheet and a conductive spring.

5. The capacitive pen according to claim 2, wherein, The clamping portion includes at least two clamping protrusions, and the clamping protrusions enclose to form a clamping groove. The notch of the clamping groove faces the elastic clamping portion along the extending direction of the pen tube; The elastic clamping portion can extend into the clamping groove and be limited in the clamping groove.

6. The capacitive pen according to claim 5, wherein, The clamping protrusion includes a first surface and a second surface connected to each other. The first surface faces the elastic clamping portion, and the second surface faces away from the elastic clamping portion; Each of the second surfaces encloses to form the clamping groove, and the elastic clamping portion is limited in the clamping groove and abuts against the second surface.

7. The capacitive pen according to claim 6, wherein, The plane where the first surface is located and the plane where the second surface is located are arranged at an included angle; And / or, the first surface and the second surface are smoothly and transitionally connected.

8. The capacitive pen according to claim 2, wherein The elastic clamping portion includes a support section and a deformation section. One end of the support section is connected to the battery or the circuit board, and the other end of the support section is connected to the deformation section; The deformation section can generate elastic deformation so that the deformation section is limited in the clamping groove.

9. The capacitive pen according to claim 8, wherein, The deformation section includes a first protrusion and a second protrusion. The first protrusion and the second protrusion are connected to the support section, and one ends of the first protrusion and the second protrusion far away from the support section are connected to each other; The clamping portion squeezes the first protrusion and the second protrusion to approach each other, so that the deformation section generates elastic deformation.

10. The capacitive pen according to any one of claims 1 to 9, characterized in that, The pen tube is provided with an installation opening, the installation opening is communicated with the installation cavity, and the pen tube is provided with a limiting annular platform around the installation opening; One end of the battery assembly away from the first connecting member is limited and abuts against the limiting annular platform.

11. The capacitive pen according to claim 10, wherein, The battery assembly further includes an installation cylinder and an end cover. The second connecting member and the end cover are respectively arranged at two end ports of the installation cylinder, and the battery is limited in the installation cylinder; The installation cylinder penetrates through the installation opening and extends into the installation cavity, and the end cover is limited and abuts against the limiting annular platform.

12. The capacitive pen according to claim 11, characterized in that, The end cover is provided with an abutting surface and a spaced surface. The abutting surface surrounds the mounting cylinder and is connected to the side wall of the mounting cylinder; The spaced surface is connected to the side of the abutting surface away from the side wall of the mounting cylinder. The abutting surface abuts against the limiting ring platform, and the spaced surface is disposed at a distance from the limiting ring platform.

13. The capacitive pen according to claim 11, characterized in that, The battery assembly further includes a bottom cover. The bottom cover and the end cover are respectively disposed at two port ends of the mounting cylinder, and the bottom cover is detachably connected to the mounting cylinder; And / or, the battery assembly further includes a bottom cover. The bottom cover and the end cover are respectively disposed at two port ends of the mounting cylinder, and the second connecting member is detachably connected to the bottom cover; And / or, the end cover is detachably connected to the mounting cylinder.

14. The capacitive pen according to claim 11, characterized in that, The inner wall of the pen tube is provided with a positioning plane. The mounting cylinder includes a main body section and a positioning section. The positioning section and the main body section are connected. The positioning section limits and abuts against the positioning plane so that the mounting cylinder is limited in the mounting cavity.

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