Positioning assembly and stylus pressure maintaining device

Abstract

The utility model discloses a positioning assembly and a stylus pressure maintaining device. The positioning assembly is provided with a guiding part and a pressure maintaining part, the guiding part is provided with a first channel, the first channel is provided with a first opening and a second opening, the pressure maintaining part is provided with a second channel, and the second channel is provided with a third opening and a pressure maintaining cavity. In the first direction, the projection of the first opening on the projection plane perpendicular to the first direction covers the projection of the second opening on the projection plane perpendicular to the first direction, and the projection of the third opening on the projection plane perpendicular to the first direction covers the projection of the pressure maintaining cavity on the projection plane perpendicular to the first direction. The guiding part can guide the flexible circuit board to be attached to the rod body, and the pressure maintaining part can further guide the flexible circuit board to contract and be attached to the rod body. According to the technical scheme, two-stage shrinkage guiding is carried out on the flexible circuit board, so that the edge curling risk of the flexible circuit board is greatly reduced, and the pressure maintaining efficiency and quality can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment assembly, in particular to a positioning component and a touch pen pressure-maintaining device. Background Art

[0002] The stylus pen is mainly composed of a rod body and a flexible circuit board, wherein the flexible circuit board is usually tightly wrapped outside the rod body and bonded to the rod body through adhesives such as colloids. The pressure holding process of the stylus pen assembly can effectively improve the stability and tightness of the connection between the flexible circuit board and the rod body. The pressure holding process can not only effectively activate the colloid and further enhance the connection stability between the flexible circuit board and the rod body, but also ensure that the flexible circuit board fits the rod body more closely, thereby improving the firmness and performance of the overall structure. In the prior art, when the stylus pen assembly is placed in the pressure holding channel of the pressure holding equipment, the flexible circuit board is often prone to curling. The curling of the flexible circuit board increases the difficulty of pressure holding and makes it difficult to effectively control the pressure holding defect rate of the stylus pen. Utility Model Content

[0003] The main purpose of the utility model is to provide a positioning component and a touch pen pressure-maintaining device, which can solve the technical problem of curling of a flexible circuit board during the touch pen pressure-maintaining process.

[0004] To achieve the above-mentioned purpose, the utility model proposes a positioning assembly for positioning and maintaining pressure on a stylus assembly, wherein the stylus assembly includes a rod body and a flexible circuit board wrapped around the rod body. The positioning assembly includes a guide portion and a pressure-maintaining portion. The guide portion defines a first channel extending along a first direction, the first channel is suitable for passing through the stylus assembly, the first channel has a first opening and a second opening arranged oppositely along the first direction, along the first direction, the projection of the first opening on a projection plane perpendicular to the first direction covers the projection of the second opening on a projection plane perpendicular to the first direction. The pressure-maintaining portion defines a second channel extending along the first direction, the second channel is suitable for passing through the stylus assembly, the second channel includes a third opening and a pressure-maintaining cavity, one side of the third opening along the first direction is used to communicate with the first channel, and the other side is used to communicate with the pressure-maintaining cavity, along the first direction, the projection of the third opening on a projection plane perpendicular to the first direction covers the projection of the pressure-maintaining cavity on a projection plane perpendicular to the first direction, and the pressure-maintaining portion is used to press and fix the flexible circuit board to the rod body.

[0005] In some embodiments, along the first direction, a projection of the first opening on a projection plane perpendicular to the first direction covers a projection of the third opening on a projection plane perpendicular to the first direction.

[0006] In some embodiments, along the first direction, a projection of the third opening on a projection plane perpendicular to the first direction covers a projection of the second opening on a projection plane perpendicular to the first direction.

[0007] In some embodiments, along a direction parallel to the first direction and pointing from the first opening to the second opening, the enclosed area of ​​the wall surface of the first opening gradually decreases, and the enclosed area of ​​the wall surface of the second opening is equal everywhere.

[0008] In some embodiments, along a direction parallel to the first direction and pointing from the third opening to the pressure-maintaining chamber, the enclosed area of ​​the wall of the third opening gradually decreases; and the enclosed area of ​​the wall of the pressure-maintaining chamber is equal everywhere.

[0009] In some embodiments, the second channel also includes a fourth opening, which is arranged on a side of the pressure-maintaining chamber away from the third opening. The enclosed area of ​​the wall of the fourth opening gradually increases along a direction parallel to the first direction and pointing from the third opening to the fourth opening.

[0010] In some embodiments, the pressure maintaining portion has a first plate body, which defines a second channel in a direction parallel to a first axis. The first axis is parallel to the first direction. Along the direction around the first axis, the first end and the second end of the first plate body can be relatively spaced apart, and the first end can approach or move away from the second end along the direction around the first axis.

[0011] In some embodiments, the pressure holding portion has a first state and a second state. In the first state, the first end is separated from the second end so that the stylus assembly can be inserted into the second channel; in the second state, the first end is abutted against the second end so that the pressure holding portion can press the flexible circuit board against the rod body.

[0012] In some embodiments, the guide portion includes a second plate body and an installation mark, the installation mark is arranged on a side of the second plate body away from the pressure-maintaining portion, and the installation mark is used to guide the stylus assembly to pass through the first channel.

[0013] In some embodiments, the positioning assembly also includes a sensor, which is arranged on a side of the pressure maintaining portion away from the guide portion. The sensor defines a detection area. The stylus assembly can pass through the first channel and the second channel to the detection area. The sensor is used to detect the installation status of the stylus assembly.

[0014] A second aspect of the present application further provides a stylus pen pressure-maintaining device, the stylus pen pressure-maintaining device comprising a positioning assembly according to any one of the above embodiments.

[0015] In some embodiments, the stylus pressure-maintaining device also includes a base, a first pressure head and a second pressure head. The first pressure head is fixedly connected to the base, the first pressure head is suitable for abutting against the side of the pressure-maintaining part away from the second channel, and the second pressure head is arranged on the side of the pressure-maintaining part away from the first pressure head. The second pressure head can approach or move away from the pressure-maintaining part in a direction perpendicular to the first direction, so that the pressure-maintaining part can press the flexible circuit board tightly and fix it to the rod body.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] In the technical solution of the present application, along the first direction, the projection of the first opening on the projection plane perpendicular to the first direction covers the projection of the second opening on the projection plane perpendicular to the first direction, and the projection of the third opening on the projection plane perpendicular to the first direction covers the projection of the pressure-holding cavity on the projection plane perpendicular to the first direction. When the stylus assembly is passed from the first opening to the second opening, the enclosed area of ​​the wall of the first channel is reduced from the first opening to the second opening, and the guide portion can guide the flexible circuit board to be attached to the rod body, thereby reducing the risk of curling of the flexible circuit board. When the stylus assembly is passed from the second opening to the third opening, and then from the third opening to the pressure-holding cavity, the enclosed area of ​​the wall of the second channel is reduced, and the flexible circuit board can be further shrunk and attached to the rod body. The technical solution of the present application has a two-stage contraction guide for the flexible circuit board, thereby greatly reducing the risk of curling of the flexible circuit board, and the pressure-holding efficiency and quality can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is an exploded cross-sectional structural diagram of a positioning assembly and a structural diagram of a stylus assembly in one embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the positioning component in the first perspective in one embodiment of the utility model;

[0021] Figure 3 This is a structural schematic diagram of a pressure-maintaining portion of an embodiment of the utility model from a second viewing angle;

[0022] Figure 4 This is a schematic structural diagram of a pressure-maintaining portion of an embodiment of the utility model from a third viewing angle;

[0023] Figure 5 This is a structural schematic diagram of a stylus pen pressure-maintaining device installed with a stylus pen assembly in one embodiment of the utility model;

[0024] Figure 6 It is a schematic cross-sectional structural diagram of a stylus pen pressure-maintaining device and a stylus pen assembly in one embodiment of the utility model;

[0025] Figure 7 This is a structural schematic diagram of a stylus pen assembly installed on a positioning assembly in one embodiment of the utility model;

[0026] Figure 8 It is a schematic diagram of the partial structure of a touch pen pressure-maintaining device in one embodiment of the utility model.

[0027] Description of Figure Numbers:

[0028] Positioning assembly 100;

[0029] Guide portion 110; first channel 111; first opening 112; second opening 113; second plate 114; installation mark 115;

[0030] A pressure holding portion 120;

[0031] The second channel 121; the third opening 122; the pressure-maintaining chamber 123; the fourth opening 124; the first plate 125; the first end 1251; the second end 1252;

[0032] Sensor 130;

[0033] Detection area 131;

[0034] Stylus pen pressure-maintaining device 200;

[0035] Base 210; first pressing head 220; second pressing head 230;

[0036] Stylus assembly 300;

[0037] Flexible circuit board 310; rod body 320;

[0038] The first direction X.

[0039] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] In order to improve the connection stability and tightness between the flexible circuit board and the rod body, the stylus pen assembly needs to be pressure-maintained during the production process. The pressure-maintaining process of the stylus pen refers to the activation of the colloid between the flexible circuit board and the rod body by heating, pressurizing, using specific chemical activators or light during the manufacturing process. After the colloid is activated, its adhesion is improved, and the loose flexible circuit board is tightly fitted to the rod body by pressing, maintaining the stability of the internal structure and electronic components of the stylus pen to ensure that it can work continuously and stably during use. The pressure-maintaining process is crucial to the performance and life of the stylus pen. In other words, the pressure-maintaining process can activate the colloid between the flexible circuit board and the rod body on the one hand, so that it can better play a fixing role, thereby improving the connection stability between the two; on the other hand, it can also make the flexible circuit board fit more closely to the surface of the rod body, enhancing the overall performance and appearance quality of the stylus pen. Due to various factors such as the small pressure-maintaining channel and improper operation during the pressure-maintaining process, the flexible circuit board is often prone to curling when the stylus pen assembly is placed in the pressure-maintaining equipment. In the prior art, the curling phenomenon of the flexible circuit board not only greatly increases the difficulty of maintaining the pressure of the stylus pen, but also makes it difficult to effectively control the failure rate of the stylus pen's pressure maintenance.

[0042] To solve the above technical problems, Figures 1 to 8 As shown, the present application proposes a positioning assembly 100, which is used to position and maintain pressure on the stylus assembly 300, such as Figure 1 As shown, the stylus pen assembly 300 includes a rod body 320 and a flexible circuit board 310 wrapped around the rod body 320. The positioning assembly 100 includes a guide portion 110 and a pressure-maintaining portion 120.

[0043] like Figure 1 as well as Figure 2As shown, the guide portion 110 defines a first channel 111 extending along the first direction X, and the first channel 111 is suitable for passing the stylus assembly 300. It can be understood that in some embodiments, the housing of the stylus can be a cylindrical housing, a prismatic housing, or a D-shaped housing combined with an arc surface and a plane, and the stylus assembly 300 is installed in the housing cavity of the stylus. In order to improve the stability and compactness of the stylus structure, after the flexible circuit board 310 of the stylus assembly 300 is wrapped in the rod body 320, the stylus assembly 300 can also be a corresponding cylindrical, prismatic or D-shaped. Therefore, in order to make the first channel 111 suitable for passing the stylus assembly 300, the stylus assembly 300 is passed through the first channel 111 along the first direction X, and the cross section of the first channel 111 perpendicular to the first direction X can be any suitable shape such as a circle, a polygon or a D-shaped. The second channel 121 is also suitable for passing the stylus assembly 300, and accordingly, the cross section of the second channel 121 can also be set accordingly, which will not be repeated here. It should be noted that the cross-sectional areas referred to in the present application are the areas of the cross sections perpendicular to the first direction X, and for a channel, they refer to the enclosed area of ​​the channel wall around an axis parallel to the first direction X.

[0044] like Figure 1 as well as Figure 2 As shown, in the guide portion 110, the first channel 111 has a first opening 112 and a second opening 113 which are arranged oppositely along the first direction X, and the stylus pen assembly 300 can be arranged from the first opening 112 to the second opening 113. Along the first direction X, the projection of the first opening 112 on the projection plane perpendicular to the first direction X covers the projection of the second opening 113 on the projection plane perpendicular to the first direction X. In other words, the enclosed area of ​​the wall surface of the first channel 111 at the first opening 112 is not less than the enclosed area of ​​the wall surface of the first channel 111 at the second opening 113. Specifically, along the first direction X, the enclosed area of ​​the wall surface of the first opening 112 can be gradually reduced, and the enclosed area of ​​the wall surface of the second opening 113 can be equal to the minimum enclosed area of ​​the wall surface of the first opening 112, and the enclosed area of ​​the wall surface of the second opening 113 can be set according to the size of the cross-sectional area of ​​the flexible circuit board 310 of the stylus pen assembly 300 after being wrapped in the rod body 320 along the first direction X. The enclosed area of ​​the wall of the first opening 112 is not less than the enclosed area of ​​the wall of the second opening 113. That is to say, when the stylus assembly 300 passes from the first opening 112 to the second opening 113 along the first direction X, the flexible circuit board 310 can be pressed by the wall of the first channel 111 toward the side close to the rod body 320. The guiding and tightening effect of the wall of the first channel 111 on the flexible circuit board 310 greatly reduces the possibility of curling of the flexible circuit board 310.

[0045] like Figure 1 as well as Figure 2As shown, the pressure-maintaining portion 120 defines a second channel 121 extending along the first direction X, the second channel 121 is suitable for passing the stylus assembly 300, and the second channel 121 includes a third opening 122 and a pressure-maintaining cavity 123. The third opening 122 is used to communicate with the first channel 111 on one side along the first direction X, and is communicated with the pressure-maintaining cavity 123 on the other side. Along the first direction X, the projection of the third opening 122 on the projection plane perpendicular to the first direction X covers the projection of the pressure-maintaining cavity 123 on the projection plane perpendicular to the first direction X. In other words, the enclosed area of ​​the wall surface of the second channel 121 at the third opening 122 is not less than the enclosed area of ​​the wall surface of the second channel 121 at the pressure-maintaining cavity 123. Specifically, along the first direction X, the enclosed area of ​​the wall of the third opening 122 may gradually decrease, the enclosed area of ​​the wall of the pressure-maintaining cavity 123 may be equal to the minimum enclosed area of ​​the wall of the third opening 122, and the enclosed area of ​​the wall of the pressure-maintaining cavity 123 may be set according to the size of the cross-sectional area of ​​the flexible circuit board 310 of the stylus pen assembly 300 wrapped in the rod body 320 along the first direction X. To facilitate the placement of the stylus pen assembly 300, the minimum projection of the first channel 111 and the second channel 121 on the projection plane along the first direction X may be greater than the cross-sectional area of ​​the stylus pen assembly 300, that is, the minimum enclosed area of ​​the wall of the first channel 111 and the second channel 121 may be greater than the cross-sectional area of ​​the stylus pen assembly 300. Since the guide portion 110 pre-presses the stylus pen assembly 300, when the stylus pen assembly 300 enters the second channel 121, the guiding and tightening effect of the third opening 122 can make the stylus pen assembly 300 enter the pressure-maintaining cavity 123 more smoothly. The pressure-maintaining portion 120 is used to press and fix the flexible circuit board 310 to the rod body 320, that is, the pressure-maintaining portion 120 can activate the colloid of the stylus pen assembly 300 in the pressure-maintaining cavity 123 and shrink and press the flexible circuit board 310 to the rod body 320.

[0046] In the technical solution of the present application, along the first direction X, the projection of the first opening 112 on the projection plane perpendicular to the first direction X covers the projection of the second opening 113 on the projection plane perpendicular to the first direction X, and the projection of the third opening 122 on the projection plane perpendicular to the first direction X covers the projection of the pressure-holding cavity 123 on the projection plane perpendicular to the first direction X. When the stylus pen assembly 300 is passed from the first opening 112 to the second opening 113, the enclosed area of ​​the wall surface of the first channel 111 is reduced when the first opening 112 to the second opening 113, and the guide portion 110 can guide the flexible circuit board 310 to be attached to the rod body 320, thereby reducing the risk of curling of the flexible circuit board 310. When the stylus pen assembly 300 is passed from the second opening 113 to the third opening 122, and then from the third opening 122 to the pressure-holding cavity 123, the enclosed area of ​​the wall surface of the second channel 121 is reduced, and the flexible circuit board 310 can be further shrunk and attached to the rod body 320. The technical solution of the present application has a two-stage contraction guide for the flexible circuit board, thereby greatly reducing the risk of curling of the flexible circuit board 310, and effectively improving the pressure holding efficiency and quality. It can be understood that the cross-sectional shapes of the first channel 111 and the second channel 121 along the first direction perpendicular to the first direction X can be respectively designed to conform to the cross-sectional shape of the stylus pen assembly 300, so that the pressure holding position of the stylus pen assembly 300 when it is installed in the positioning assembly 100 can be more accurate, and the stylus pen assembly 300 can be taken and placed more conveniently.

[0047] like Figure 6 as well as Figure 7 As shown, the stylus pen assembly 300 is passed from the first opening 112 to the second opening 113, and then from the second opening 113 to the third opening 122, and finally from the third opening 122 to the pressure-maintaining chamber 123. The pressure-maintaining portion 120 can compress the stylus pen assembly 300 to achieve pressure maintenance of the stylus pen assembly 300. The projections of the first opening 112, the second opening 113, the third opening 122, and the pressure-maintaining chamber 123 on the projection surface perpendicular to the first direction X can be set according to the actual size of the stylus pen assembly 300 and installation requirements. In some embodiments, the projections of the first opening 112, the second opening 113, the third opening 122, and the pressure-maintaining chamber 123 on the projection surface perpendicular to the first direction X can be reduced in sequence. Figure 7As shown, in some embodiments, along the first direction X, the projection of the first opening 112 on the projection plane perpendicular to the first direction X covers the projection of the third opening 122 on the projection plane perpendicular to the first direction X, and along the first direction X, the projection of the third opening 122 on the projection plane perpendicular to the first direction X covers the projection of the second opening 113 on the projection plane perpendicular to the first direction X. In other words, the enclosed area of ​​the wall of the third opening 122 may be less than or equal to the enclosed area of ​​the first opening 112, and the enclosed area of ​​the wall of the third opening 122 may be greater than or equal to the enclosed area of ​​the wall of the second opening 113. On the one hand, the larger first opening 112 facilitates the insertion of the uncompressed stylus assembly 300 into the first channel 111 along the first direction X, and the enclosed area of ​​the third opening 122 not greater than the enclosed area of ​​the first opening 112 facilitates the further contraction and compression of the stylus assembly 300 in the second channel 121. On the other hand, since the stylus pen assembly 300 cannot be pressurized in the first channel 111, the colloid between the flexible circuit board and the rod body 320 in the first channel 111 is not activated, and the flexible circuit board 310 squeezed by the wall of the first channel 111 may become loose when passing from the first channel 111 to the second channel 121. The enclosed area of ​​the third opening 122 is not less than the enclosed area of ​​the second opening 113, which helps the stylus pen assembly 300 to pass from the first channel 111 to the second channel 121 and reduces the risk of the stylus pen assembly 300 getting stuck.

[0048] like Figure 1 As shown, in some embodiments, along the direction parallel to the first direction X and pointing from the first opening 112 to the second opening 113, the enclosed area of ​​the wall of the first opening 112 gradually decreases, and the enclosed area of ​​the wall of the second opening 113 is equal everywhere. The guide portion 110 can pre-tighten the stylus assembly 300. The gradually decreasing enclosed area of ​​the wall of the first opening 112 helps the guide portion 110 to pre-tighten the stylus assembly 300, and the constant enclosed area of ​​the wall of the second opening 113 helps to improve the stability of the pre-tightening of the stylus assembly 300. Figure 1 As shown, in some embodiments, along the direction parallel to the first direction X and pointing from the third opening 122 to the pressure-maintaining cavity 123, the enclosed area of ​​the wall of the third opening 122 gradually decreases, and the enclosed area of ​​the wall of the pressure-maintaining cavity 123 is equal everywhere. The enclosed area of ​​the wall of the third opening 122 gradually decreases, which helps to further press the stylus assembly 300, and the constant enclosed area of ​​the wall of the pressure-maintaining cavity 123 helps to improve the stability of the compression of the stylus assembly 300, and improve the balance of the forces on various parts of the stylus assembly 300 during the pressure-maintaining process.

[0049] The guide portion 110 and the pressure-maintaining portion 120 may be of an integrally formed design or of a separate design. In some embodiments, the pressure-maintaining portion 120 may be configured as an independent pressure-maintaining rubber ring, which defines a second channel 121. The pressure-maintaining portion 120 may be configured as a rubber ring, which can, on the one hand, eliminate some installation errors through the elasticity of the rubber ring, and on the other hand, can effectively reduce the possibility of the stylus assembly 300 being damaged during the pressure-maintaining process. Since the pressure-maintaining portion 120 needs to perform pressure-maintaining operations such as squeezing on the stylus assembly 300, the pressure-maintaining portion 120 is more susceptible to wear. The pressure-maintaining portion 120 is separately disposed from the guide portion 110, which facilitates the maintenance and replacement of the pressure-maintaining portion 120 and reduces the cost of wear and replacement of the positioning assembly 100. In order to further reduce the cost of wear and replacement of the pressure-maintaining portion 120, as Figure 1 As shown, in some embodiments, the second channel 121 may further include a fourth opening 124, which is disposed on a side of the pressure-maintaining cavity 123 away from the third opening 122, and the enclosed area of ​​the wall of the fourth opening 124 gradually increases along a direction parallel to the first direction X and pointing from the third opening 122 to the fourth opening 124. The pressure-maintaining portion 120 is provided with a third opening 122 and a fourth opening 124 which are disposed opposite to each other along the first direction X. When the third opening 122 is damaged, one side of the fourth opening 124 may be connected to the second opening 113, and the other side may be connected to the pressure-maintaining cavity 123, so that the pressure-maintaining portion 120 can guide the stylus assembly 300 into the pressure-maintaining cavity 123 through the fourth opening 124. That is to say, both the third opening 122 and the fourth opening 124 can be used to guide the stylus assembly 300 into the second channel 121. On the one hand, both ends of the pressure-maintaining portion 120 are provided with openings. During assembly, the other end of the second opening 113 of the guide portion 110 is butted with any end of the pressure-maintaining portion 120, thereby improving the assembly efficiency of the pressure-maintaining portion 120. On the other hand, when one opening of the pressure-maintaining portion 120 is worn, the other opening can be inverted so that the two openings are alternately butted with the second opening 113, thereby greatly improving the utilization efficiency of the pressure-maintaining portion 120 and further reducing the cost of the pressure-maintaining portion 120.

[0050] The arrangement of the pressure-maintaining portion 120 may vary according to different pressure-maintaining methods. In this embodiment, the pressure-maintaining portion 120 is arranged as a pressure-maintaining rubber ring having an opening on the side wall. Figure 4As shown, the pressure-maintaining part 120 has a first plate 125, and the first plate 125 defines a second channel 121 around a direction parallel to the first axis. The first axis is parallel to the first direction X. Along the direction around the first axis, the first end 1251 and the second end 1252 of the first plate 125 can be arranged with relative spacing, and the first end 1251 can approach or move away from the second end 1252 along the direction around the first axis. In other words, the first plate 125 is arranged around the first axis, and a gap can be left between the two ends of the first plate 125 that are arranged relatively along the direction around the first axis. By controlling the distance between the first end 1251 and the second end 1252, the enclosed area of ​​the wall surface of the second channel 121 limited by the pressure-maintaining part 120 can be controlled. When the first end 1251 is close to the second end 1252, the gap between the first end 1251 and the second end 1252 is reduced, and the pressure-maintaining part 120 can perform the pressure-maintaining operation. When the first end 1251 is away from the second end 1252, the gap between the first end 1251 and the second end 1252 increases, and the stylus assembly 300 can be placed in the second channel 121 or taken out from the second channel 121. On the one hand, the gap between the first end 1251 and the second end 1252 can reduce the assembly error of the pressure-holding portion 120, and on the other hand, the pressure-holding strength of the stylus assembly 300 can be accurately controlled by adjusting the gap between the first end 1251 and the second end 1252. It should be noted that, in some embodiments, the pressure-holding portion 120 may also have a plurality of plates arranged at intervals around the first axis. In addition, the first end 1251 approaching or moving away from the second end 1252 refers to the relative movement of the first end 1251 and the second end 1252, and specifically, the first end 1251 and the second end 1252 may move together. When the first end 1251 is close to the second end 1252, the size of the gap between the first end 1251 and the second end 1252 may be different according to the required pressure holding strength. Preferably, in some embodiments, the pressure holding portion 120 has a first state and a second state. In the first state, the first end 1251 is separated from the second end 1252 so that the stylus pen assembly 300 can be inserted into the second channel 121; in the second state, the first end 1251 is in contact with the second end 1252 so that the pressure holding portion 120 can press the flexible circuit board 310 against the rod body 320. That is, in the first state, the stylus pen assembly 300 can be installed or removed from the second channel 121, and in the second state, the stylus pen assembly 300 can be pressure held, which will not be described in detail here.

[0051] To further improve the convenience of installing the stylus pen assembly 300, a side of the guide portion 110 away from the pressure-maintaining portion 120 may be provided with an installation guide structure. Figure 2As shown, in this embodiment, the guide portion 110 includes a second plate 114 and an installation mark 115. The installation mark 115 is arranged on the side of the second plate 114 away from the pressure-maintaining portion 120. The installation mark 115 is used to guide the stylus assembly 300 to pass through the first channel 111. Specifically, the installation mark 115 can be configured as a protrusion, such as Figure 2 As shown, in some embodiments, the first channel 111 can penetrate the installation mark 115 and the second plate 114 along the first direction X, and the outer wall surface of the protrusion can be designed to emulate the outer wall surface of the stylus assembly 300 around the first axis. Since the cross-sectional shape of the first channel 111 can also be the same as the cross-sectional shape of the stylus assembly 300, the cross-sectional shape of the installation mark 115 is the same as the cross-sectional shape of the stylus, which can play a role in guiding and indicating the installation direction. Specifically, the installation mark 115 can have a D-shape or any other suitable shape. In some embodiments, the installation mark 115 can also be set as any structure that can indicate the installation direction, such as a groove, an arrow, an icon, etc.

[0052] In order to detect whether the stylus pen assembly 300 is installed in place during the pressure holding process of the positioning assembly 100, the positioning assembly 100 may further include a position sensor 130 for detecting the position of the stylus pen assembly 300. Figure 1 as well as Figure 2 As shown, in this embodiment, the positioning assembly 100 further includes a sensor 130, which is disposed on a side of the pressure-maintaining portion 120 away from the guide portion 110. The sensor 130 defines a detection area 131, and the stylus assembly 300 can be passed through the first channel 111 and the second channel 121 to the detection area 131. The sensor 130 is used to detect the installation status of the stylus assembly 300. The sensor 130 can be configured as any suitable sensor such as a photoelectric sensor, an acoustic wave sensor 130, a magnetic encoder, a laser ranging sensor, a piezoelectric displacement sensor, etc. The sensor 130 can limit the detection area 131 around the first axis. When the stylus assembly 300 passes through the detection area 131, the sensor 130 can detect the installation status of the stylus in the second channel 121, thereby indicating whether the stylus is installed in place. If the stylus pen assembly 300 fails to reach the detection area 131 or its length in the detection area 131 is too short, or if the stylus pen assembly 300 exceeds the detection area 131 or its length in the detection area 131 is too long, etc., it can be understood that the stylus pen is not properly installed. The sensor 130 can detect and display whether the stylus pen assembly 300 is properly installed in the second channel 121, so as to improve the consistency of the contact area between the stylus pen assembly 300 and the wall of the second channel 121, and reduce the risk of the stylus pen assembly 300 missing pressure maintenance or failing to maintain pressure in some areas.

[0053] like Figure 5 , Figure 6 as well as Figure 8As shown, the second aspect of the present application further provides a stylus pen pressure-maintaining device 200, which includes the positioning assembly 100 of any of the above embodiments. Thanks to the improvement of the above positioning assembly 100, the stylus pen pressure-maintaining device 200 of this embodiment has the same technical effect as the above positioning assembly 100, which will not be repeated here.

[0054] like Figure 8 As shown, in some embodiments, the stylus pen pressure-maintaining device 200 further includes a base 210, a first pressing head 220 and a second pressing head 230, wherein the first pressing head 220 is fixedly connected to the base 210, and the first pressing head 220 is suitable for abutting against a side of the pressure-maintaining portion 120 away from the second channel 121, and the second pressing head 230 is disposed on a side of the pressure-maintaining portion 120 away from the first pressing head 220, and the second pressing head 230 can approach or move away from the pressure-maintaining portion 120 in a direction perpendicular to the first direction X, so that the pressure-maintaining portion 120 can press and fix the flexible circuit board 310 to the rod body 320. The first pressing head 220 and the second pressing head 230 of the stylus pen pressure-maintaining device 200 of the present application cooperate to control the pressure of the pressure-maintaining portion 120 on the stylus pen assembly 300, and the pressure-maintaining intensity, pressure-maintaining time and pressure-maintaining position can be controlled with high precision. Benefiting from the improvement of the positioning assembly 100 , the stylus pen pressure-maintaining device 200 of this embodiment has the same technical effect as the positioning assembly 100 , which will not be described in detail here.

[0055] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative state relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0056] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0057] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A positioning assembly for positioning and maintaining pressure on a stylus pen assembly, the stylus pen assembly comprising a rod body and a flexible circuit board wrapped around the rod body, characterized in that: The positioning component comprises: a guide portion defining a first channel extending along a first direction, the first channel being suitable for passing the stylus assembly, the first channel having a first opening and a second opening arranged opposite to each other along the first direction, and a projection of the first opening on a projection plane perpendicular to the first direction along the first direction covering a projection of the second opening on the projection plane perpendicular to the first direction; The pressure-maintaining portion defines a second channel extending along the first direction, the second channel is suitable for passing the stylus assembly, the second channel includes a third opening and a pressure-maintaining cavity, the third opening is used to communicate with the first channel on one side along the first direction, and is connected with the pressure-maintaining cavity on the other side, along the first direction, the projection of the third opening on the projection plane perpendicular to the first direction covers the projection of the pressure-maintaining cavity on the projection plane perpendicular to the first direction, and the pressure-maintaining portion is used to press and fix the flexible circuit board to the rod body.

2. The positioning assembly according to claim 1, characterized in that: Along the first direction, a projection of the first opening on a projection plane perpendicular to the first direction covers a projection of the third opening on the projection plane perpendicular to the first direction; and / or, Along the first direction, a projection of the third opening on a projection plane perpendicular to the first direction covers a projection of the second opening on the projection plane perpendicular to the first direction.

3. The positioning assembly according to claim 1, characterized in that: Along a direction parallel to the first direction and pointing from the first opening to the second opening, the enclosed area of ​​the wall surface of the first opening gradually decreases, and the enclosed area of ​​the wall surface of the second opening is equal everywhere; and / or, Along a direction parallel to the first direction and pointing from the third opening to the pressure-maintaining cavity, the enclosed area of ​​the wall of the third opening gradually decreases; the enclosed area of ​​the wall of the pressure-maintaining cavity is equal everywhere.

4. The positioning assembly according to claim 1, characterized in that: The second channel also includes a fourth opening, which is arranged on a side of the pressure-maintaining cavity away from the third opening. Along a direction parallel to the first direction and pointing from the third opening to the fourth opening, the enclosed area of ​​the wall of the fourth opening gradually increases.

5. The positioning assembly according to claim 1, characterized in that: The pressure maintaining portion has a first plate body, which defines the second channel around a direction parallel to a first axis. The first axis is parallel to the first direction. Along the direction around the first axis, the first end and the second end of the first plate body can be relatively spaced apart, and the first end can approach or move away from the second end along the direction around the first axis.

6. The positioning assembly according to claim 5, characterized in that: The pressure-maintaining portion has a first state and a second state. In the first state, the first end is separated from the second end so that the stylus assembly can be inserted into the second channel; in the second state, the first end is abutted against the second end so that the pressure-maintaining portion can press the flexible circuit board against the rod body.

7. The positioning assembly according to claim 1, characterized in that: The guide portion includes a second plate body and an installation mark, wherein the installation mark is disposed on a side of the second plate body away from the pressure-maintaining portion, and the installation mark is used to guide the stylus pen assembly to pass through the first channel.

8. The positioning assembly according to claim 1, characterized in that: The positioning assembly also includes a sensor, which is arranged on a side of the pressure-maintaining portion away from the guide portion. The sensor defines a detection area. The stylus pen assembly can pass through the first channel and the second channel to the detection area. The sensor is used to detect the installation status of the stylus pen assembly.

9. A touch pen pressure-maintaining device, characterized in that: The invention comprises a positioning component as described in any one of claims 1 to 8.

10. The touch pen pressure-maintaining device according to claim 9, characterized in that: The stylus pen pressure-maintaining device also includes a base, a first pressure head and a second pressure head, wherein the first pressure head is fixedly connected to the base, the first pressure head is suitable for abutting against a side of the pressure-maintaining portion facing away from the second channel, the second pressure head is arranged on a side of the pressure-maintaining portion facing away from the first pressure head, and the second pressure head can approach or move away from the pressure-maintaining portion in a direction perpendicular to the first direction, so that the pressure-maintaining portion can press and fix the flexible circuit board to the rod body.

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