CN212515724U - Inclined layer capacitance pen - Google Patents

Abstract

The utility model discloses an inclined layer capacitance pen, which comprises a pen body, a PCBA mainboard arranged in the pen body, and a pen point connected with the pen body; the pen body also comprises an antenna PCB, and the antenna PCB is directly welded with the PCBA main board; an antenna body is welded on the antenna PCB; the antenna body comprises a first metal part, a second metal part and a third metal part, and a first insulating part and a second insulating part; the metal piece and the insulating piece are welded together from bottom to top according to the sequence of the first metal piece, the second metal piece, the first insulating piece, the third metal piece and the second insulating piece. The utility model provides an inclined layer capacitance pen, which improves the antenna and the related parts, so that the antenna signal is more stable and is not easily affected by the falling of the pen body; meanwhile, the manufacturing process is simpler, and the production cost is lower.

Description

Inclined layer capacitance pen

Technical Field

The utility model belongs to the technical field of the electric capacity pen and specifically relates to a slope stratum electric capacity pen.

Background

At present, capacitive pens, which can change the handwriting thickness according to the writing angle, have been widely accepted and used by consumers. The principle of such capacitive pens is to generate corresponding outputs mainly according to the sensing of different antenna signals, so that, as a key component for receiving and transmitting signals, the antenna structure needs to be very fine to accurately identify the antenna signals of different levels. However, the antenna structure of the injection molding integrated into one piece is adopted in the existing design, and meets with the mainboard through FPC, and its problem mainly has two: firstly, the structure is not firm enough, and the connection part of the FPC is easy to loosen when the FPC falls off, so that antenna signals are influenced; secondly, the manufacturing process is complex and the production cost is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an inclined layer capacitance pen, which improves the antenna and the related parts, so that the antenna signal is more stable and is not easily influenced by the falling of the pen body; meanwhile, the manufacturing process is simpler, and the production cost is lower.

An inclined layer capacitance pen comprises a pen body, a PCBA mainboard arranged in the pen body, and a pen point connected with the pen body, and is characterized in that the pen body further comprises an antenna PCB board which is directly welded with the PCBA mainboard; an antenna body is welded on the antenna PCB; the antenna body comprises a first metal piece, a second metal piece, a third metal piece and a first insulating piece and a second insulating piece; the metal piece and the insulating piece are welded together from bottom to top according to the sequence of the first metal piece, the second metal piece, the first insulating piece, the third metal piece and the second insulating piece.

Optionally, the metalwork is cylindrical copper sheathing, the insulating part is ring shape insulating piece, the diameter of copper sheathing and insulating piece is the same.

Optionally, the lower end of the pen point is conical, and the upper end of the pen point is a cylinder with a cavity inside; the diameter of the cylinder is smaller than that of the cone and is matched with the size of the antenna body.

Optionally, a thimble is arranged in the cone, and when the pen point is connected with the pen body, the thimble is in contact with the antenna body.

Optionally, the inner side of the cylinder is provided with an internal thread, and the antenna PCB is provided with a fixing frame matched with the internal thread.

Optionally, an integrated tubular support is arranged in the pen body, and the PCBA main board is fixed in the tubular support.

Optionally, the pen body is made of heat-resistant fireproof engineering plastic.

The utility model provides an inclined layer capacitance pen, the antenna of which comprises an antenna body and an antenna PCB board for bearing the antenna body; the antenna body is directly used for receiving and transmitting signals, and the antenna PCB is used for conducting the signals; the antenna PCB is directly welded with a PCBA main board in the pen body, namely, PCB leads of the antenna PCB and the PCBA main board are directly butted; compare with the mode that meets through FPC, the utility model discloses a connected mode is firm more firm for antenna signal is more stable, can prevent the signal deviation that brings after the body of a pen falls.

The antenna body is divided into three sections and is separated by two insulators, namely, the antenna body comprises three metal parts and two insulators, wherein the first metal part is a pen point signal layer, the third metal part is an inclined signal layer, and the second metal part is a metal shielding layer and is used for isolating signals between the first metal part and the third metal part and preventing signal interference; the first and second insulating members perform an insulating and isolating function. The metal piece and the insulating piece of the antenna body are independent parts, are sleeved with each other, are brushed with solder paste, and are welded and fixed on the antenna PCB. Compared with the antenna body integrally formed by injection molding, the antenna body has lower requirements on the manufacturing process and lower cost.

In addition, the size of the cylinder with the cavity arranged in the upper end of the pen point is matched with that of the antenna body, and the cylinder can be sleeved on the antenna body, so that the antenna body can be further protected from being impacted and falling.

Drawings

Fig. 1 is a perspective view of an inclined layer capacitance pen according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an inclined-layer capacitance pen according to an embodiment of the present invention;

fig. 3 is an exploded view of an inclined-layer capacitance pen according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the nib structure according to an embodiment of the present invention;

the reference numbers in the drawings of the specification are as follows:

1. a pen body; 2. PCBA mainboard; 3. a pen point; 31. a cone; 32. a cylinder; 33. a thimble; 34. an internal thread; 4. an antenna PCB board; 41. a fixed mount; 5. an antenna body; 51. a first metal member; 52. a second metal piece; 53. a third metal piece; 54. a first insulating member; 55. a second insulating member; 6. and (4) a bracket.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An inclined layer capacitance pen, as shown in fig. 1 to 4, comprises a pen body 1, a PCBA mainboard 2 arranged in the pen body, and a pen point 3 connected with the pen body; the pen body also comprises an antenna PCB 4 which is directly welded with the PCBA mainboard; an antenna body 5 is welded on the antenna PCB.

The PCBA mainboard is a mainboard of the capacitance pen, and I C and other related circuits which are responsible for main functions are located on the PCBA mainboard; compared with the PCBA mainboard, the antenna PCB is a relatively small PCB, and is provided with an antenna body, a component circuit and the like required by communication with the PCBA mainboard. When the antenna PCB board and the PCBA mainboard are welded, leads during data communication between the antenna PCB board and the PCBA mainboard are correspondingly connected, and compared with a mode of connecting through an FPC, the stability and the falling resistance are stronger.

The antenna body comprises a first metal piece 51, a second metal piece 52, a third metal piece 53, a first insulating piece 54 and a second insulating piece 55; the metal piece and the insulating piece are welded together in the sequence of the first metal piece, the second metal piece, the first insulating piece, the third metal piece and the second insulating piece from bottom to top.

The metal piece and the insulating piece of the antenna body are independent parts, and the metal piece and the insulating piece are connected in sequence in the production process and then can be welded together through tin paste and finally welded on the antenna PCB. Namely, the antenna part of the capacitance pen comprises two welding parts, wherein one part is that the antenna body is welded on the antenna PCB, and the other part is that the antenna PCB is welded on the PCBA mainboard.

Further, in an embodiment, the metal member is a cylindrical copper sleeve, the insulating member is a circular ring-shaped insulating sheet, and the diameters of the copper sleeve and the insulating sheet are the same. Preferably, the diameter is 2.2 mm. The metal piece and the insulating piece are both circular with the same diameter and are convenient to be connected with each other.

On the basis, the lower end of the pen point is in a cone shape 31, and the upper end of the pen point is in a cylinder shape 32 with a cavity arranged inside; the diameter of the cylinder is smaller than that of the cone, the diameter of the cylinder is matched with the size of the antenna body, and the cylinder can be sleeved on the antenna body to further protect the antenna body.

Further, in one embodiment, a thimble 33 is disposed in the cone, and the thimble contacts the antenna when the pen tip is connected to the pen body. Preferably, the inner side of the cylinder is provided with an internal thread 34, and the antenna PCB board is provided with a fixing frame 41 matched with the internal thread. The fixing frame can fix the pen point, and after the pen point is screwed into the fixing frame, the thimble in the fixing frame is contacted with the antenna body, so that the signal transmission of the pen point is realized; the outer cone is connected with the pen body into a whole.

In the embodiment, the structure of the pen point is matched with the shape of the antenna body, and the cylinder is sleeved on the antenna body through the threads and then connected with the fixing frame, so that the antenna body is further prevented from being affected by collision and falling, and the signal stability is improved; the fixing frame plays a role in fixing the pen point.

Further, in one embodiment, an integrated tubular support 6 is arranged in the pen body, and the PCBA main board is fixed in the tubular support. The tubular support plays supporting and fixed action to the PCBA mainboard.

Further, in one embodiment, the pen body may be made of heat-resistant and fireproof engineering plastic, such as ABS material, or PC material (polycarbonate), or a combination thereof, so as to make the pen body lighter. Preferably, the pen body is made of ABS material.

It is right above the utility model discloses the explanation that slope stratum capacitance pen goes on for help understands the utility model discloses, nevertheless the utility model discloses an embodiment does not receive the restriction of above-mentioned embodiment, and any does not deviate from the utility model discloses change, modification, substitution, combination, simplification made under the principle all should be equivalent replacement mode, all contain within the protection scope of the utility model.

Claims (7)

1. An inclined layer capacitance pen comprises a pen body, a PCBA mainboard arranged in the pen body, and a pen point connected with the pen body, and is characterized in that the pen body further comprises an antenna PCB board which is directly welded with the PCBA mainboard; an antenna body is welded on the antenna PCB; the antenna body comprises a first metal piece, a second metal piece, a third metal piece and a first insulating piece and a second insulating piece; the metal piece and the insulating piece are welded together from bottom to top according to the sequence of the first metal piece, the second metal piece, the first insulating piece, the third metal piece and the second insulating piece.

2. The inclined-stratum capacitance pen as claimed in claim 1, wherein the metal member is a cylindrical copper sleeve, the insulating member is a circular ring-shaped insulating sheet, and the diameters of the copper sleeve and the insulating sheet are the same.

3. The inclined stratum capacitance pen as claimed in claim 2, wherein the lower end of the pen tip is conical, and the upper end of the pen tip is a cylinder with a cavity inside; the diameter of the cylinder is smaller than that of the cone and is matched with the size of the antenna body.

4. The inclined-stratum capacitance pen as claimed in claim 3, wherein a thimble is provided in the cone, and the thimble contacts the antenna body when the pen tip is connected to the pen body.

5. The inclined-stratum capacitance pen as claimed in claim 4, wherein an internal thread is formed on an inner side of the cylinder, and a fixing frame matched with the internal thread is formed on the antenna PCB.

6. The inclined-stratum capacitance pen as claimed in claim 1, wherein an integral tubular support is arranged in the pen body, and the PCBA main board is fixed in the tubular support.

7. The inclined stratum capacitance pen of any one of claims 1 to 6, wherein the pen body is made of heat-resistant fireproof engineering plastic.

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