Electric connection structure and stylus

Abstract

The application provides an electric connection structure and a stylus. The electric connection structure comprises a pen tip assembly, a main plate, a mounting seat, a first separator and a connecting piece. The pen tip assembly comprises a first electrode and a second electrode. The mounting seat is connected with the second electrode and is conductive with each other. The main plate is connected with the mounting seat and is conductive. The connecting piece is contained in the interior of the mounting seat. The first separator is sleeved on the exterior of the connecting piece to separate the mounting seat from the connecting piece. The connecting piece is a conductor. One end of the connecting piece is abutted with the first electrode. The other end of the connecting piece is arranged on the exterior of the mounting seat and is electrically connected with the main plate. The stylus comprises the electric connection structure. The electric connection structure and the stylus have the advantages of less wire, no complex wire arrangement and high assembly convenience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stylus, and in particular to an electric connection structure and a stylus. BACKGROUND

[0002] At present, most of the stylus is internally provided with at least one electrode. For example, some electrodes can emit signals to a touch device (the touch device can be a tablet computer) so that the touch device obtains the stylus tip position, the stylus tilt angle and other parameters; some electrodes can receive signals from the touch device. The stylus is also provided with a mainboard (the mainboard is usually a PCBA), and the electrodes of the stylus are electrically connected with the mainboard, so that the electrodes can normally operate.

[0003] However, for some stylus with multiple electrodes in the stylus tip, the electric connection structure or electric connection mode between the electrodes and the mainboard is not reasonable, which leads to the inconvenience of assembling the stylus, thereby affecting the assembly efficiency of the stylus, and the inconvenience of assembling also affects the finished product quality of the stylus, thereby affecting the writing effect of the stylus. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides an electric connection structure suitable for electrically connecting a stylus tip assembly with two electrodes with a mainboard, and the electric connection structure is convenient to assemble, which is conducive to improving the assembly efficiency and writing effect of the stylus.

[0005] The present application also provides a stylus with the above-mentioned electric connection structure.

[0006] According to the electric connection structure of the first aspect of the present application, the electric connection structure comprises: a stylus tip assembly comprising a first electrode and a second electrode; a mainboard; a mounting seat which is a conductor, the mounting seat is connected with the second electrode and is in conduction with each other, and the mounting seat is connected with the mainboard and is in conduction with each other; a first partition piece which is accommodated in the interior of the mounting seat, the first partition piece is insulated; a connecting piece which is accommodated in the interior of the mounting seat, and the first partition piece is sleeved outside the connecting piece to separate the mounting seat and the connecting piece, the connecting piece is a conductor, one end of the connecting piece abuts against the first electrode, and the other end of the connecting piece is arranged outside the mounting seat and is electrically connected with the mainboard.

[0007] According to the electric connection structure provided by the embodiment of the present application, one end of the adapter is in contact with the first electrode, and the other end of the adapter is electrically connected with the mainboard, so that the electric connection between the first electrode and the mainboard is realized. The second electrode is connected with the mounting seat and is in electrical connection with each other, and the mounting seat is connected with the mainboard through the fastener, and the fastener is a conductor, so that the electric connection between the mounting seat and the mainboard is realized through the fastener. That is, the electric connection between the second electrode and the mainboard is realized through the mounting seat and the fastener. The electric connection structure provided by the present application realizes the electric connection between the mainboard and the electrode in the pen tip assembly through the adapter, the mounting seat and the fastener, and the electric connection structure needs less wire, and does not need complex wiring or wiring, and does not need frequent wiring. The electric connection structure provided by the present application is convenient to assemble, and is beneficial to improve the assembly efficiency and writing effect of the stylus.

[0008] According to some embodiments of the present application, the adapter comprises: a needle shaft, one end of which is in contact with the first electrode, and the other end of which is electrically connected with the mainboard; a needle tube, which is sleeved outside the needle shaft, and the needle shaft can move relative to the needle tube, both ends of the needle shaft are exposed outside the needle tube, and both ends of the needle shaft are exposed outside the first partition; and an elastic member, which is arranged inside the needle tube along the axial direction of the needle shaft, and both ends of the elastic member are in contact with the needle shaft and the needle tube respectively.

[0009] According to some embodiments of the present application, the adapter comprises: a needle shaft, one end of which is in contact with the first electrode; a needle tube, which is sleeved outside the needle shaft, and the needle shaft can move relative to the needle tube, one end of the needle shaft for contacting the first electrode is exposed outside the needle tube and outside the first partition, and the other end of the needle tube away from the pen tip assembly is electrically connected with the mainboard; and an elastic member, which is arranged inside the needle tube along the axial direction of the needle shaft, and both ends of the elastic member are in contact with the needle shaft and the needle tube respectively.

[0010] According to some embodiments of the present application, the mounting seat has a first thread, and the second electrode has a second thread, and the first thread and the second thread are engaged with each other.

[0011] According to some embodiments of the present application, the fastener is arranged as a conductor, and the fastener penetrates the mainboard and the mounting seat; the mainboard and the mounting seat are connected with the fastener, so that the mounting seat is electrically connected with the mainboard.

[0012] According to some embodiments of the present application, the electric connection structure further comprises a flexible member, the flexible member is a conductor, and both ends of the flexible member are connected with the adapter and the mainboard respectively.

[0013] According to some embodiments of the present invention, the electrical connection structure further includes a protective cover, the protective cover is insulating, and the connection between the connecting member and the flexible member is provided in the protective cover.

[0014] According to some embodiments of the present invention, the mounting seat includes: a sleeve portion; a transverse portion, connected to an end of the sleeve portion away from the pen tip assembly, and the connecting member passes through the transverse portion and the sleeve portion; a longitudinal portion, connected to the outer edge of the transverse portion, the longitudinal portion and the sleeve portion are connected to opposite sides of the transverse portion, the longitudinal portion protrudes relative to the transverse portion in a direction away from the sleeve portion, and the main board is mounted on the longitudinal portion through the fastener.

[0015] According to some embodiments of the present invention, the longitudinal portion includes a load-bearing portion and two positioning portions, the two positioning portions are respectively connected to the two side edges of the load-bearing portion, the two positioning portions are connected to the same side of the load-bearing portion, and protrude relative to the load-bearing portion in a direction close to the mainboard, and the load-bearing portion and the two positioning portions jointly define a positioning groove.

[0016] A touch pen according to an embodiment of the second aspect of the present invention includes the electrical connection structure of the embodiment of the first aspect.

[0017] The stylus pen according to the embodiment of the present invention has at least the following beneficial effects: its electrical connection structure requires fewer wires, and does not require complicated wiring or routing, nor does it require frequent wiring, and the stylus pen is easy to assemble.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0020] Figure 1 is a cross-sectional view of the electrical connection structure of the present invention;

[0021] Figure 2 for Figure 1 A magnified schematic diagram of area A in the middle;

[0022] Figure 3 for Figure 1 A magnified schematic diagram of area B in the middle;

[0023] Figure 4 is an exploded schematic diagram of the electrical connection structure;

[0024] Figure 5 is an exploded schematic diagram of the electrical connection structure from another angle;

[0025] Figure 6 Fig. 1 is a schematic view of the connection relationship between the mounting seat and the main plate;

[0026] Figure 7 Fig. 1 is a schematic view of the connection relationship between the mounting seat and the main plate;

[0027] Fig. 1 is a schematic view of the connection relationship between the mounting seat and the main plate; Fig. 1 is a schematic view of the connection relationship between the mounting seat and the main plate; DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application. The indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0030] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features.

[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0032] In the description of the application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The application provides an electric connection structure for realizing the electric connection between the main plate 115 and the electrodes in the pen tip assembly 108, and the electric connection structure is suitable for the pen tip assembly 108 with two electrodes. Referring to Figure 1 , the electric connection structure comprises the pen tip assembly 108, the main plate 115, the mounting base 105, the first partition 116 and the connecting piece 110.

[0034] Referring to Figure 1 and Figure 2 , the pen tip assembly 108 comprises the first electrode 101 and the second electrode 102, and the first electrode 101 and the second electrode 102 are separated from each other to avoid short circuit caused by direct contact of the first electrode 101 and the second electrode 102.

[0035] Referring to Figures 1 to 3 , the connecting piece 110 and the first partition 116 are arranged inside the mounting base 105, and the first partition 116 is sleeved outside the connecting piece 110. The connecting piece 110 and the mounting base 105 are conductors, and the first partition 116 is insulating; under the partitioning action of the first partition 116, the connecting piece 110 and the first partition 116 are separated from each other to avoid short circuit.

[0036] In combination Figures 1 to 3 , one end of the connecting piece 110 abuts against the first electrode 101, and the other end of the connecting piece 110 is electrically connected with the main plate 115, so as to realize the electric connection between the first electrode 101 and the main plate 115. The second electrode 102 is connected with the mounting base 105 and is in conduction with each other, and the mounting base 105 is connected with the main plate 115 and is in conduction with each other; that is, the second electrode 102 realizes the electric connection with the main plate 115 through the mounting base 105.

[0037] The electric connection structure provided by the application realizes the electric connection between the main plate 115 and the electrodes in the pen tip assembly 108 through the connecting piece 110, the mounting base 105 and other components, and the electric connection structure needs less wires, does not need complex wiring or wiring, and does not need frequent wiring. The electric connection structure provided by the application is convenient to assemble, and is conducive to improving the assembly efficiency of the stylus.

[0038] In some embodiments, the electric connection structure further comprises a fastener 113, which is arranged as a conductor and is arranged to pass through the main plate 115 and the mounting base 105. The main plate 115 and the mounting base 105 are fixed together by the fastener 113, and the fastener 113 in contact with the main plate 115 and the mounting base 105 can also make the main plate 115 and the mounting base 105 conductive to each other. The fastener 113 can be arranged as a screw or a rivet made of metal, and correspondingly, the main plate 115 and the mounting base 105 need to be provided with holes for the fastener 113 to pass through.

[0039] In some embodiments, the adapter 110 can be arranged as a spring needle. Specifically, referring to Figures 1 to 3 , the adapter 110 comprises a needle shaft 107, a needle tube 106 and an elastic member 109. The needle shaft 107 and the elastic member 109 are arranged inside the needle tube 106, and the needle shaft 107 can move relative to the needle tube 106. Both ends of the needle shaft 107 extend outside the needle tube 106 and outside the first partition 116, and the needle shaft 107 is used to abut against the first electrode 101 and to electrically connect with the main plate 115. The elastic member 109 can be arranged as a spring, and the elastic member 109 is sleeved outside the needle shaft 107. The needle shaft 107 adopts a stepped shaft design, and along the axial direction of the needle shaft 107, both ends of the elastic member 109 abut against the needle shaft 107 and the needle tube 106, respectively. Figure 7 In other embodiments, the structure of the adapter 110 arranged as a spring needle is slightly different from that in Figure 3 , and the end of the needle tube 106 away from the nib assembly 108 can be electrically connected with the main plate 115.

[0040] When assembling the electric connection structure, the first partition 116 can be first sleeved outside the needle tube 106, and then the first partition 116 and the adapter 110 are inserted into the inside of the mounting base 105, and then the nib assembly 108 and the mounting base 105 are assembled. The elastic member 109 in the adapter 110 is always in a compressed state, and compared with when the needle shaft 107 is not in abutment with the first electrode 101, after the first electrode 101 abuts against the needle shaft 107, the first electrode 101 will abut against the needle shaft 107 to move the needle shaft 107, and the compression degree of the elastic member 109 increases. The adapter 110 arranged as a spring needle can reduce the resistance when the nib assembly 108 and the mounting base 105 are assembled while ensuring good contact between the needle shaft 107 and the first electrode 101, and facilitates the assembly of the electric connection structure.

[0041] Referring to Figure 1 and Figure 3In some embodiments, the electric connection structure further comprises a flexible piece 112. The flexible piece 112 is flexible and can be configured as a wire, an FPC, or the like (the flexible piece 112 shown in the figure is configured as a wire). One end of the flexible piece 112 is connected to the adapter piece 110, and the other end of the flexible piece 112 is connected to the main board 115. The connection between the flexible piece 112 and the adapter piece 110 and the connection between the flexible piece 112 and the main board 115 can both be configured as welding. If the adapter piece 110 is configured as a spring needle, the flexible piece 112 is connected to the end of the needle shaft 107. In some cases, based on the orientation of the adapter piece 110 and the main board 115, the adapter piece 110 is not convenient to be directly connected to the main board 115, and in this case, the flexible piece 112 can be configured. In addition, compared with rigid adapter components, the shape of the flexible piece 112 is easy to change, the shape or direction of the flexible piece 112 is more convenient to adjust when the flexible piece 112 is installed, and the installation of the flexible piece 112 is more flexible and convenient.

[0042] With reference to Figure 3 In the case where the flexible piece 112 is configured, an insulating protective sleeve 111 can also be configured in the electric connection structure, and the protective sleeve 111 is externally sleeved at the connection between the flexible piece 112 and the adapter piece 110. The protective sleeve 111 can protect the connection between the flexible piece 112 and the adapter piece 110 and ensure the stability of the electric connection. In addition, the protective sleeve 111 can also prevent the adapter piece 110 or the flexible piece 112 from directly contacting the mounting seat 105, thereby reducing the risk of short circuit inside the stylus.

[0043] The mounting seat 105 is provided with a relief hole 301 through which the adapter piece 110 passes. In order to further reduce the risk of short circuit of the stylus, a part of the protective sleeve 111 can also extend into the relief hole 301 of the mounting seat 105, so that the protective sleeve 111 can play a blocking role between the hole wall of the relief hole 301 and the adapter piece 110. The protective sleeve 111 can be configured as a plastic piece, or the protective sleeve 111 can be formed by winding insulating tape at the connection between the flexible piece 112 and the adapter piece 110.

[0044] With reference to Figures 4 to 6 The electric connection structure further comprises a reinforcing bracket 114, and the fastener 113 can be configured as a screw, a rivet, or the like. In order to facilitate the assembly between the main board 115 and the reinforcing bracket 114 on the mounting seat 105 and the disassembly during subsequent maintenance, the fastener 113 can be configured as a screw, and the fastener 113 is threadedly connected with the reinforcing bracket 114 on the mounting seat 105. Correspondingly, the main board 115 and the reinforcing bracket 114 on the mounting seat 105 are both provided with holes through which the fastener 113 passes. The fastener 113 can simultaneously pass through the main board 115, the reinforcing bracket 114, and the mounting seat 105, and the reinforcing bracket 114 is clamped between the main board 115 and the mounting seat 105.

[0045] With reference toFigure 1 and Figure 2 In some embodiments, the mounting base 105 is threadedly connected with the second electrode 102. Specifically, referring to Figure 2 and Figure 4 the inner side of the mounting base 105 is provided with a first thread 201, and the outer side of the second electrode 102 is provided with a second thread 401, the first thread 201 and the second thread 401 are engaged with each other. In this arrangement, the stylus tip assembly 108 and the mounting base 105 are screwed with each other to complete the connection, and no other connecting components are needed between the two, which is conducive to reducing the cost of the electrical connection structure or the stylus, and at the same time, such an arrangement can also improve the assembly convenience of the electrical connection structure or the stylus.

[0046] Referring to Figure 6 In some embodiments, the mounting base 105 includes a sleeve portion 601, a transverse portion 602, and a longitudinal portion 606. The adapter 110 is accommodated in the interior of the sleeve portion 601 and the interior of the transverse portion 602, and one end of the adapter 110 passes out of the transverse portion 602 (an avoiding hole 301 is provided on the transverse portion 602). The transverse portion 602 is connected with the end of the sleeve portion 601 away from the stylus tip assembly 108, and the longitudinal portion 606 is connected to the outer edge of the transverse portion 602, and the longitudinal portion 606 protrudes away from the sleeve portion 601 relative to the transverse portion 602. The main board 115 is connected with the longitudinal portion 606 through the fastener 113, and the main board 115 is installed on the side of the longitudinal portion 606 facing the center of the transverse portion 602. In the stylus, the pen barrel is sleeved on the periphery of the transverse portion 602; the shape of the above-mentioned mounting base 105 can provide sufficient installation space for the main board 115 without hindering the adapter 110 from passing out of the mounting base 105.

[0047] Referring to Figure 6 In some embodiments, the mounting base 105 can be provided with a positioning groove 605 for accommodating some components installed on the longitudinal portion 606. Specifically, the longitudinal portion 606 includes a bearing portion 604 and two positioning portions 603, one end of the bearing portion 604 is connected with the transverse portion 602, the two positioning portions 603 are connected to the left and right side edges of the bearing portion 604 (the two positioning portions 603 are symmetrically arranged, Figure 6 the left positioning portion is not specifically shown), and the two positioning portions 603 both protrude towards the side of the main board 115 relative to the bearing portion 604. The bearing portion 604 and the two protruding positioning portions 603 jointly define the positioning groove 605, and in some embodiments, the positioning portion 603 can abut against the outer edge of the reinforcing bracket 114 to position the reinforcing bracket 114. In other embodiments, the main board 115 can be directly accommodated in the positioning groove 605, and the positioning portion 603 abuts against the outer edge of the main board 115 to position the main board 115.

[0048] The application also provides a stylus, which comprises a pen tip assembly 108 and a pen barrel, and has high assembly convenience.

[0049] With reference to Figure 1 and Figure 2 , the pen tip assembly 108 comprises a pen tip 103, a first electrode 101, a second electrode 102 and a second separator 104. The pen tip 103 and the second separator 104 are both insulated. The pen tip 103 is used to directly contact a touch device (for example, a tablet computer), and the second separator 104 is used to separate the first electrode 101 and the second electrode 102 to prevent the first electrode 101 and the second electrode 102 from directly contacting and causing short circuit. Figure 2 With reference to , one end of the first electrode 101 is embedded in the pen tip 103, one end of the second electrode 102 is embedded in the pen tip 103, and one end of the second separator 104 is also embedded in the pen tip 103. The second separator 104 is sleeved outside the first electrode 101, and the second electrode 102 is sleeved outside the second separator 104. In this structure, the first electrode 101, the second electrode 102 and the second separator 104 can be assembled into an integrated body first, and then one end of the integrated body is put into a mold for injection molding to obtain the pen tip 103. The pen tip 103 is exposed outside the pen barrel and located at one end of the pen barrel, and other components in the electrical connection structure are accommodated inside the pen barrel.

[0050] The functions of the first electrode 101 and the second electrode 102 will be described below.

[0051] If the stylus is set as an active capacitive stylus, a main board 115 and a first transmitting electrode are arranged in the stylus, and all the electrodes in the stylus are connected with the main board 115. The first transmitting electrode transmits a first signal to a touch device (for example, a tablet computer), the touch device analyzes the first signal transmitted by the first transmitting electrode, thereby calculating the position of the pen tip 103 of the stylus, and then the touch device can show a point or a track on the screen according to the position of the pen tip 103. A second transmitting electrode can also be arranged in the stylus, and the second transmitting electrode can also transmit a signal (referred to as a second signal) to the touch device, and the touch device can calculate the tilt angle of the stylus according to the strengths of the first signal and the second signal.

[0052] The stylus can also be provided with a receiving electrode, which is used to receive the signal transmitted by the touch device, thereby realizing the bidirectional communication between the stylus and the touch device. In some cases, the stylus can also be provided with a shielding electrode, which is connected with a grounding point on the main board 115 (i.e., the shielding electrode is grounded), and is arranged between the first transmitting electrode and the second transmitting electrode to reduce the interference between the first signal and the second signal, thereby improving the positioning accuracy of the touch device to the pen tip 103.

[0053] The first transmitting electrode, the second transmitting electrode, the receiving electrode and the shielding electrode are four kinds of electrodes commonly used in active capacitive stylus. For the stylus tip assembly 108 of the present application, the combination of the first electrode 101 and the second electrode 102 can be the combination of any two of the above four kinds of electrodes. Other electrodes (if any) in the stylus that are not directly connected to the stylus tip 103 can be arranged inside the stylus shaft or other parts of the stylus. In some embodiments, the first electrode 101 can be the first transmitting electrode and the second electrode 102 can be the second transmitting electrode. In some embodiments, the first electrode 101 can be the second transmitting electrode and the second electrode 102 can be the first transmitting electrode. In some embodiments, the first electrode 101 can be the first transmitting electrode and the second electrode 102 can be the shielding electrode. In some embodiments, the first electrode 101 can be the first transmitting electrode and the second electrode 102 can be the receiving electrode. The feasible combination modes are not listed one by one here.

[0054] In addition, it should be noted that the stylus tip assembly 108 is not limited to be used in active capacitive stylus; for other forms of stylus, if the stylus needs to be provided with at least two electrodes, the stylus tip assembly 108 can also be used. Accordingly, the roles of the first electrode 101 and the second electrode 102 can be flexibly adjusted according to the type of the stylus. Accordingly, the electrical connection structure of the present application is also not limited to be used in active capacitive stylus.

[0055] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. An electrical connection structure, characterized in that: include: A pen tip assembly, comprising a first electrode, a second electrode, and a second separator, wherein the second separator is insulated and sleeved on the outside of the first electrode, and the second electrode is sleeved on the outside of the second separator; Motherboard; The mounting seat is configured as a conductor, the mounting seat having a first thread, the second electrode having a second thread, the first thread and the second thread interlocking with each other, and the mounting seat and the second electrode being in electrical communication with each other; the mounting seat comprises a sleeve portion, a transverse portion, and a longitudinal portion, the transverse portion being connected to an end of the sleeve portion away from the pen tip assembly; the longitudinal portion being connected to an outer edge of the transverse portion, the longitudinal portion and the sleeve portion being connected to opposite sides of the transverse portion, and the longitudinal portion protruding relative to the transverse portion in a direction away from the sleeve portion; a first partition, housed in the mounting seat, wherein the first partition is insulated; a connector, the connector being accommodated inside the sleeve portion and inside the transverse portion, and the first separator being sleeved outside the connector to separate the mounting seat and the connector, the connector being a conductor, one end of the connector being in contact with the first electrode, and the other end of the connector being disposed outside the mounting seat and electrically connected to the mainboard; A fastener, the fastener being configured as a conductor and passing through the mainboard and the mounting seat; The mainboard is connected to the longitudinal portion via the fasteners, so that the mounting base is electrically connected to the mainboard.

2. The electrical connection structure according to claim 1, wherein: The connecting piece includes: a needle shaft, one end of which abuts against the first electrode and the other end of which is electrically connected to the main board; a needle tube, sleeved on the outside of the needle shaft, and the needle shaft is movable relative to the needle tube, with both ends of the needle shaft exposed outside the needle tube and outside the first partition; The elastic member is arranged inside the needle tube, and along the axial direction of the needle shaft, two ends of the elastic member respectively abut against the needle shaft and the needle tube.

3. The electrical connection structure according to claim 1, wherein: The connecting piece includes: a needle shaft, one end of which abuts against the first electrode; a needle tube, sleeved on the outside of the needle shaft, and the needle shaft is movable relative to the needle tube, one end of the needle shaft for abutting the first electrode being exposed outside the needle tube and outside the first separator, and one end of the needle tube away from the pen tip assembly being electrically connected to the mainboard; The elastic member is arranged inside the needle tube, and along the axial direction of the needle shaft, two ends of the elastic member respectively abut against the needle shaft and the needle tube.

4. The electrical connection structure according to claim 1, wherein: It also includes a flexible part, which is a conductor, and two ends of the flexible part are respectively connected to the connecting part and the main board.

5. The electrical connection structure according to claim 4, characterized in that: It also includes a protective cover, which is insulated, and the connection between the connecting piece and the flexible piece is arranged in the protective cover.

6. The electrical connection structure according to claim 1, wherein: The longitudinal portion includes a load-bearing portion and two positioning portions, the two positioning portions are respectively connected to the two side edges of the load-bearing portion, the two positioning portions protrude relative to the load-bearing portion toward the mainboard, and the load-bearing portion and the two positioning portions jointly define a positioning groove.

7. A stylus pen, characterized in that The invention comprises the electrical connection structure according to any one of claims 1 to 6.

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