Refill assembly of active capacitance pen
By combining a conductive plastic tube and a PCB board, the electrical connection of the capacitive pen tip is simplified, solving the problems of complex pen tip structure and high failure rate, and improving the reliability and drop resistance of the capacitive pen.
Patent Information
- Application Number
- CN202520146182.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing capacitive pen refills have complex structures and high failure rates, leading to numerous defects in mass industrial production and wasting manpower and materials.
The pen refill uses a combination structure of conductive plastic tube and PCB board, and is electrically connected through conductive layer and signal soldering points, which simplifies the refill structure. It also uses FPC connecting cable to connect to PCB board, which improves the reliability of electrical connection.
The simplified pen refill structure reduced the failure rate, improved the drop resistance of the capacitive pen, and reduced the waste of labor and materials.
Smart Images
Figure CN223857691U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a capacitor pen equipment technical field, specifically a kind of refill assembly of active capacitor pen. BACKGROUND
[0002] Capacitor pen is made of conductor material and has electric conduction characteristics, and is used to touch capacitive screen to complete man-machine dialogue operation, and capacitor pen is an auxiliary device that simulates human body (usually finger) to complete man-machine dialogue by conductor material.With the development of APP, the capacitor pen of the present is not simply to replace finger operation function, and more and more professionals have tried active capacitor pen to work on mobile device.Capacitor pen refill is part of capacitor pen.
[0003] The existing capacitor pen refill structure needs to be jointed and matched by multiple components, and the capacitor pen refill structure is relatively complex, and the failure rate of capacitor pen is high, and various bad conditions are prone to occur in industrial mass production, causing a large amount of waste of labor and materials. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of refill assembly of active capacitor pen to solve the problems raised in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of refill assembly of active capacitor pen, including conductive plastic cylinder and PCB board, conductive plastic cylinder is sleeved outside PCB board, and conductive plastic cylinder is electrically connected with PCB board.
[0007] Further, the conductive plastic cylinder is provided with a conductive layer, and the conductive layer is electrically connected with the PCB board.
[0008] Further, the conductive layer is provided with a conductive counterbore, and the PCB board is provided with a signal circuit, and the signal circuit is provided with a corresponding signal welding point, and the conductive counterbore and the signal welding point are electrically connected, and the conductive layer and the PCB board are electrically connected through the conductive counterbore and the signal welding point.
[0009] Further, the conductive layer outside the conductive plastic barrel has four conductive layers in sequence, namely the first conductive layer, the second conductive layer, the third conductive layer and the fourth conductive layer, the first conductive layer is provided with a first conductive counterbore, the second conductive layer is provided with a second conductive counterbore, the third conductive layer is provided with a third conductive counterbore, the PCB is provided with a first signal circuit on one side, the first signal circuit is provided with a first signal welding point and a second signal welding point in parallel on the surface, the PCB is provided with a second signal circuit on the other side, the second signal circuit is provided with a third signal welding point on the surface, the first conductive layer is electrically connected with the first signal welding point through the first conductive counterbore, the second conductive layer is electrically connected with the third signal welding point through the second conductive counterbore, the third conductive layer is electrically connected with the second signal welding point (212) through the third conductive counterbore, and the fourth conductive layer is electrically connected with the metal needle of the pen core.
[0010] Further, the threaded seat is sleeved outside the conductive plastic barrel, and the first conductive layer is electrically connected with the threaded seat.
[0011] Further, the threaded seat is sleeved outside the conductive plastic barrel, and the first conductive layer is electrically connected with the threaded seat.
[0012] Further, the threaded seat is sleeved outside the conductive plastic barrel, and the first conductive layer is electrically connected with the threaded seat.
[0013] Further, the threaded seat is sleeved outside the conductive plastic barrel, and the first conductive layer is electrically connected with the threaded seat.
[0014] Further, the threaded seat is sleeved outside the conductive plastic barrel, and the first conductive layer is electrically connected with the threaded seat.
[0015] Further, the threaded seat is sleeved outside the conductive plastic barrel, and the first conductive layer is electrically connected with the threaded seat.
[0016] Compared with the prior art, the active capacitive stylus has the advantages that: the PCB board is used as the pen core body, the structure of the PCB board is optimized, the hollow components such as the conductive plastic cylinder and the fixing seat are connected with the PCB board and the FPC connecting wire in circuit, the structure is simplified, and a large number of complex structural components are directly replaced. The FPC connecting wire is arranged at the rear end of the PCB board as a pin, the FPC connecting wire is connected with the PCB board of the capacitive stylus, the performance of the electrical connection can be effectively improved, and specifically, since the FPC is a flexible connection, when the impact of dropping and the like acts on the capacitive stylus, the electrical connection point will not be disconnected to cause a fault, and the anti-falling performance of the capacitive stylus is further improved. The problem that the pen core structure of the capacitive stylus needs to be connected and matched with multiple components, the pen core structure is relatively complex, the failure rate of the capacitive stylus is high, various bad conditions are prone to occur in industrial mass production, and a large amount of manpower and material resources are wasted is solved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structure schematic view of a pen core assembly of an active capacitive stylus.
[0018] Figure 2 It is an explosion structure schematic view of a pen core assembly of an active capacitive stylus.
[0019] Figure 3 It is a conductive plastic cylinder and a connecting structure schematic view of a pen core assembly of an active capacitive stylus.
[0020] Figure 4 It is a PCB board and a connecting structure schematic view of a pen core assembly of an active capacitive stylus.
[0021] Figure 5 It is an FPC connecting wire and a connecting structure schematic view of a pen core assembly of an active capacitive stylus.
[0022] Wherein: 1-conductive plastic cylinder, 11-first conductive layer, 111-first conductive counterbore, 12-second conductive layer, 112-second conductive counterbore, 13-third conductive layer, 113-third conductive counterbore, 14-fourth conductive layer, 2-PCB board, 21-first signal circuit, 211-first signal welding point, 212-second signal welding point, 22-second signal circuit, 221-third signal welding point, 23-first electrode, 24-second electrode, 25-third electrode, 3-threaded seat, 4-spring, 5-fixing seat, 51-fixing hole, 6-FPC connecting wire, 61-first conductive pin, 62-second conductive pin, 63-third conductive pin, 7-pressure sensor, 8-nib. DETAILED DESCRIPTION
[0023] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other in the case of no conflict.
[0024] In the description of the utility model, it should be noted that unless there is explicit provision and limitation, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or it can be detachable connection, or it can be integrally connected, it can be mechanical connection, or it can be electrical connection, it can be directly connected, or it can be indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.
[0025] The specific implementation of the utility model is described in detail in combination with specific embodiments.
[0026] As shown in Figures 1-5 A refill assembly of an active capacitive pen, comprising a conductive plastic barrel 1 and a PCB board 2, the conductive plastic barrel 1 is sleeved outside the PCB board 2, and the conductive plastic barrel 1 is electrically connected with the PCB board 2. By covering the conductive plastic barrel 1 outside the PCB board 2, the signal emitted by the entire PCB board 2 at any angle is uniform and unchanged, avoiding the unstable situation that the signal under the prismatic electrode is far and near.
[0027] The conductive plastic barrel 1 is provided with a conductive layer, and the conductive layer is electrically connected with the PCB board 2.
[0028] As shown in Figure 3 The conductive layer is provided with a conductive counterbore on the surface, the PCB board 2 is provided with a signal circuit, the signal circuit is provided with a corresponding signal welding point, the conductive counterbore and the signal welding point are electrically connected, and the conductive layer and the PCB board 2 are electrically connected through the conductive counterbore and the signal welding point.
[0029] As shown in Figure 3 The conductive layer outside the conductive plastic barrel is four, which are a first conductive layer 11, a second conductive layer 12, a third conductive layer 13 and a fourth conductive layer 14 in sequence, the first conductive layer 11 is provided with a first conductive counterbore 111 on the surface, the second conductive layer 12 is provided with a second conductive counterbore 112 on the surface, and the third conductive counterbore is provided with a third conductive counterbore 113 on the surface, as shown in Figure 2 The PCB board 2 is provided with a first signal circuit 21 on one side, the first signal circuit 21 is provided with a first signal welding point 211 and a second signal welding point 212 on the surface in parallel, and the PCB board 2 is provided with a second signal circuit 22 on the other side, as shown in Figure 4As shown, a third signal soldering point 221 is provided on the surface of the second signal circuit 22. The first conductive layer 11 is electrically connected to the first signal soldering point 211 through the first conductive countersunk hole 111. The second conductive layer 12 is electrically connected to the third signal soldering point 221 through the second conductive countersunk hole 112. The third conductive layer 13 is electrically connected to the second signal soldering point 212 through the third conductive countersunk hole 113. The fourth conductive layer 14 is electrically connected to the metal spring needle of the pen tip.
[0030] like Figure 2 As shown, it also includes a threaded seat 3, which is sleeved on the outside of the conductive plastic cylinder 1. The first conductive layer 11 is electrically connected to the threaded seat 3. A spring 4 is sleeved on the threaded seat 3. A fixed seat 5 is connected to the threaded seat 3. A pressure sensor 7 is connected to the end of the fixed seat 5 away from the threaded seat 3. The spring 4 rests against the pressure sensor 7.
[0031] It also includes an FPC connector 6, which is detachably mounted on the mounting base 5 and electrically connected to the PCB board 2.
[0032] like Figure 2 As shown, the mounting base 5 has a mounting hole 51. One end of the FPC connecting cable 6 is inserted into the mounting hole 51. The end of the FPC inserted into the mounting hole 51 is provided with a first conductive pin 61, a second conductive pin 62, and a third conductive pin 63 in sequence. The PCB board 2 located at one end of the mounting base 5 is provided with a first electrode 23, a second electrode 24, and a third electrode 25 in sequence. The first conductive pin 61 is electrically connected to the first electrode 23, the second conductive pin 62 is electrically connected to the second electrode 24, and the third conductive pin 63 is electrically connected to the third electrode 25.
[0033] like Figures 1-5 As shown, an active capacitive pen refill assembly provided in one embodiment of the present invention includes a conductive plastic tube 1, a PCB board 2 sleeved inside the conductive plastic tube 1, a threaded seat 3 sleeved on the surface of the conductive plastic tube 1, a spring 4 sleeved on the surface of the threaded seat 3, a fixing seat 5 connected to the threaded seat 3, a fixing hole 51 opened on the surface of the fixing seat 5, an FPC connecting wire 6 detachably installed on the surface of the fixing seat 5, a pressure sensor 7 connected to the end of the fixing seat 5 away from the threaded seat 3, and a pen tip 8 connected to the end of the conductive plastic tube 1 away from the threaded seat 3.
[0034] The surface of the conductive plastic barrel 1 is sequentially covered with a first conductive layer 11, a second conductive layer 12 and a third conductive layer, the surface of the first conductive layer 11 is provided with a first conductive counterbore 111, the surface of the second conductive layer 12 is provided with a second conductive counterbore 112, the surface of the third conductive layer 13 is provided with a third conductive counterbore 113, one side of the PCB board 2 is provided with a first signal circuit 21, the surface of the first signal circuit 21 is provided with a first signal welding point 211 and a second signal welding point 212 side by side, the other side of the PCB board 2 is provided with a second signal circuit 22, the surface of the second signal circuit 22 is provided with a third signal welding point 221, the inside of the PCB board 2 is provided with a third signal circuit (not shown in the figure), the first conductive layer 11 is electrically connected with the first signal welding point 211 through the first conductive counterbore 111, the third conductive counterbore 13 is electrically connected with the second signal welding point 212 through the third conductive counterbore 113, and the second conductive layer 12 is electrically connected with the third signal welding point 221 through the second conductive counterbore 112.
[0035] One end of the PCB board 2 extends to the outside of the conductive plastic barrel 1 and is inserted into the fixed seat 5, one end of the PCB board 2 in the fixed seat 5 is sequentially provided with a first electrode 23, a second electrode 24 and a third electrode 25, one end of the FPC connecting wire 6 is inserted into the fixed hole 51, and one end of the FPC connecting wire 6 inserted into the fixed hole 51 is sequentially provided with a first conductive pin 61, a second conductive pin 62 and a third conductive pin 63. The first conductive pin 61 is electrically connected with the first electrode 23, the second conductive pin 62 is electrically connected with the second electrode 24, and the third conductive pin 63 is electrically connected with the third electrode 25. The other end of the PCB board 2 is electrically connected with the third electrode 25, the conductive metal strip 1 is electrically connected with the threaded seat 3 through the first conductive layer 11, and the threaded seat 3 is made of a conductive metal material. The threaded seat 3 forms a metal shielding layer while being connected with a grounding line, which can effectively prevent excessive signal overflow and reduce external interference.
[0036] The spring 4 is sleeved on the threaded seat 3 to push the fixed seat 5 to provide extrusion thrust for the pressure sensor 7, thereby providing a pre-pressure source for the pressure sensor 7 in the capacitor pen. The FPC connecting wire 6 is electrically connected with the first electrode 23, the second electrode 24 and the third electrode 25 at the end of the PCB board 2, and the FPC connecting wire 6 serves as a transition connection, so that the pen core can be reliably connected and the movement of the pen core is not limited. The PCB board 2 is a plate-shaped object, there are angular blocks on the surface of the PCB board 2, and the space is limited, and it is covered with a circular conductive plastic barrel 1. The conductive plastic barrel 1 is used to cover the angles into a circle, and the electrodes are covered on the outer surface of the circle, so that the PCB board is a uniform and constant signal at any angle, avoiding the instability of the signal under the angular electrode.
[0037] The utility model discloses a working principle is: spring 4 is covered on threaded seat 3 upper push fixed base 5 to provide extrusion thrust for pressure sensor 7, and then provide prepressure source for pressure sensor 7 in the capacitance pen inside. The first electrode 23, the second electrode 24 and the third electrode 25 of the end of PCB board 2 are electrically connected with the FPC connecting line 6, and the FPC connecting line 6 is used as transition connection, so that the refill can be connected reliably, and the movement of the refill is not limited. PCB board 2 is a plate, and there is an angular block on the surface of PCB board 2, and the space is limited. It is covered with a circular conductive plastic cylinder 1, which is used to cover the angle into a circle, and the electrode is covered on the outer surface of the circle, so that it is a uniform and constant signal at any angle, avoiding the unstable signal of the angular electrode.
[0038] The above detailed the preferred embodiments of the present patent, but the present patent is not limited to the above embodiments, within the knowledge of those skilled in the art, various changes can be made without departing from the purpose of the present patent.
Claims
1. A pen refill assembly for an active capacitive pen, characterized in that, The application relates to a conductive plastic cylinder and a PCB board, the conductive plastic cylinder is sleeved outside the PCB board, the conductive plastic cylinder is electrically connected with the PCB board, a conductive layer is arranged outside the conductive plastic cylinder, the conductive layer is electrically connected with the PCB board, a conductive counterbore is arranged on the surface of the conductive layer, a signal circuit is arranged on the PCB board, corresponding signal welding points are arranged on the signal circuit, the conductive counterbore is electrically connected with the signal welding points, and the conductive layer and the PCB board are electrically connected through the conductive counterbore and the signal welding points.
2. The active capacitive stylus pen refill assembly of claim 1, wherein, The conductive layer outside the conductive plastic cylinder comprises four conductive layers in sequence, namely a first conductive layer, a second conductive layer, a third conductive layer and a fourth conductive layer, a first conductive counterbore is arranged on the surface of the first conductive layer, a second conductive counterbore is arranged on the surface of the second conductive layer, a third conductive counterbore is arranged on the surface of the third conductive layer, a first signal circuit is arranged on one side of the PCB board, first signal welding points and second signal welding points are arranged on the surface of the first signal circuit in parallel, a second signal circuit is arranged on the other side of the PCB board, third signal welding points are arranged on the surface of the second signal circuit, the first conductive layer is electrically connected with the first signal welding points through the first conductive counterbore, the second conductive layer is electrically connected with the third signal welding points through the second conductive counterbore, the third conductive layer is electrically connected with the second signal welding points through the third conductive counterbore, and the fourth conductive layer is electrically connected with metal elastic needles of a pen nib.
3. The active capacitive stylus refill assembly of claim 2, wherein, A threaded seat is further arranged, the threaded seat is sleeved outside the conductive plastic cylinder, and the first conductive layer is electrically connected with the threaded seat.
4. The active capacitive stylus refill assembly of claim 3, wherein, A spring is sleeved outside the threaded seat.
5. The active capacitive stylus refill assembly of claim 4, wherein, A fixing seat is further arranged, and the fixing seat is connected with the threaded seat.
6. The active capacitive stylus pen refill assembly of claim 5, wherein, A pressure sensor is connected to one end of the fixing seat away from the threaded seat.
7. The active capacitive stylus refill assembly of claim 6, wherein, An FPC connecting line is further arranged, the FPC connecting line is detachably mounted on the fixing seat, and the FPC connecting line is electrically connected with the PCB board.
8. The active capacitive stylus refill assembly of claim 7, wherein, A fixing hole is arranged on the fixing seat, one end of the FPC connecting line is inserted into the fixing hole, first conductive pins, second conductive pins and third conductive pins are sequentially arranged on the end of the FPC connecting line inserted into the fixing hole, first electrodes, second electrodes and third electrodes are sequentially arranged on one end of the fixing seat, the first conductive pins are electrically connected with the first electrodes, the second conductive pins are electrically connected with the second electrodes, and the third conductive pins are electrically connected with the third electrodes.