CN212873438U

CN212873438U - Electromagnetic pen

Info

Publication number: CN212873438U
Application number: CN202021869868.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenzhen Huion Animation Technology Co Ltd
Current assignee: Shenzhen Huewang Trend Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-02
Anticipated expiration: 2030-08-31

Abstract

The utility model provides an electromagnetic pen, it includes refill, first magnetic core, second magnetic core and seat storehouse. The refill is including the nib that is used for writing, and first magnetic core has the first through-hole that supplies the refill to pass, and the second magnetic core sets up and keeps away from nib one end in first magnetic core, has the second through-hole that supplies the refill to pass. The inner diameter of the first through hole is larger than that of the second through hole, and the pen core sequentially penetrates through the first through hole and the second through hole. One end, close to the pen point, of the second magnetic core is provided with a step structure, the inner wall surface of the seat bin is provided with an isolating piece, at least parts of the first magnetic core and the second magnetic core are contained in the seat bin, the first magnetic core and the second magnetic core are respectively located on two sides of the isolating piece, and the isolating piece abuts against the step structure. The utility model provides an electromagnetic pen passes through the separator makes and keeps the distance between first magnetic core and the second magnetic core before not writing, and electromagnetic frequency variation volume speed demand when realizing the electromagnetic pen use can sensitively catch information such as pressure, the orbit of user when using, writes effectually.

Description

Electromagnetic pen

[ technical field ] A method for producing a semiconductor device

The utility model relates to a computer peripheral technical field especially relates to an electromagnetic pen.

[ background of the invention ]

With the advance of science and technology, the digitalized electronic information equipment has the function of track input, and the realization of the function usually adopts the handwriting input mode. Electromagnetic pens as digital electronic information devices are widely used, and the pens can not only input characters by handwriting, but also realize drawing, point control operation and the like.

In the prior art and the actual production of the electromagnetic pen in the related art, some electromagnetic pens adopt a double-magnetic-core structure, and the frequency change is effectively adjusted through the change of the spacing distance between the first magnetic core and the second magnetic core. In order to maintain a fixed and accurate distance when the pen core is not writing, the prior art generally clamps a thin film sheet with precise thickness between the first magnetic core and the second magnetic core to ensure the distance between the two iron cores. However, since the thin film is usually made of a thin elastic material, the production precision is difficult to control, and the thin film is easily deformed or has burrs on the process flow, which leads to the loss of control, resulting in difficult and non-uniform control of the production quality of the electromagnetic pen.

Therefore, there is a need to provide a new electromagnetic pen to solve the above problems.

[ Utility model ] content

At present, the film piece of prior art electromagnetic pen selects the elastic element that very thin elastic material constitutes usually, because production precision is difficult to control, thereby the film piece warp easily or has to drape over one's shoulders the cutting edge of a knife or a sword and lead to out of control on the process flow, leads to electromagnetic pen production quality management and control difficulty, and is not unified, consequently, the utility model provides an electromagnetic pen.

The utility model provides an electromagnetic pen, includes refill, first magnetic core, second magnetic core and seat storehouse, the refill is including the nib that is used for writing, first magnetic core has the confession the first through-hole that the refill passed, the second magnetic core set up in first magnetic core is kept away from nib one end has the confession the second through-hole that the refill passed, the internal diameter of first through-hole is greater than the internal diameter of second through-hole, the refill passes in proper order first through-hole with the second through-hole, the second magnetic core is close to nib one end sets up the stair structure, set up the separator on the internal face of seat storehouse, first magnetic core with second magnetic core at least part accept in the seat storehouse just first magnetic core with the second magnetic core is located respectively the separator both sides, the separator butt in the stair structure.

Preferably, the height of the step structure is less than the thickness of the spacer in the length direction of the pen core.

Preferably, two grooves are formed in one side, close to the pen point, of the seat bin, two protrusions are arranged on two sides, far away from one end of the pen point, of the first magnetic core, and the protrusions are matched and fixed with the grooves.

Preferably, the outer surface of one end, far away from the pen point, of the seat bin is provided with a thread structure, the electromagnetic pen further comprises a support, and the support is matched and fixed with the thread structure of the seat bin.

Preferably, one end of the first magnetic core is accommodated in the cabin, and the second magnetic core is entirely accommodated in the cabin, wherein the accommodating space includes a first space for accommodating one end of the first magnetic core, a second space surrounded by the partition member, and a third space for accommodating the second magnetic core.

Preferably, one side, far away from the pen point, of the second magnetic core is provided with a first straight groove, the electromagnetic pen further comprises a push rod for inserting the pen core, the first straight groove is matched and fixed with the push rod, and the pen core is sequentially inserted into the first magnetic core, the second magnetic core and the push rod.

Preferably, one side of the ejector rod, which is close to the second magnetic core, is provided with a clamping part, and the clamping part is clamped with the first straight-line groove.

Preferably, two side holes are formed in one end, far away from the pen point, of the seat bin, columnar protrusions are arranged on two sides of the ejector rod, and the side holes are assembled with the columnar protrusions respectively.

Preferably, one side of the ejector rod, which is close to the pen point, is provided with a second straight groove and a blind hole, one end of the ejector rod, which is far away from the pen point, is a smooth end face, and the pen core is inserted into the blind hole.

Preferably, a third straight groove is formed in one side, close to the pen point, of the seat bin, and the protrusion of the first magnetic core enters the seat bin through the third straight groove and is fixed with the groove.

Compared with the prior art, the electromagnetic pen provided by the utility model has the advantages that the partition is arranged in the seat bin, the step structure is arranged at one end of the second magnetic core close to the pen point, the axial thickness of the step structure is smaller than that of the partition, so that the first magnetic core and the second magnetic core are respectively arranged at two sides of the partition, and meanwhile, the first magnetic core and the second magnetic core keep accurate distance when not writing, and a thin film is not used, so that the manufacturing cost is saved; meanwhile, the seat bin is provided with a groove for clamping the first magnetic core to prevent the first magnetic core from rotating; the seat storehouse sets up the protruding block of column of side opening and ejector pin, and the block portion block second magnetic core of ejector pin prevents that the second magnetic core from rotating, and the electromagnetic frequency change is stable when realizing the electromagnetic pen use, can sensitively catch information such as pressure, the orbit of user when using, writes effectually.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic view of the overall structure of an electromagnetic pen according to the present invention;

FIG. 2 is a schematic cross-sectional view of the electromagnetic pen shown in FIG. 1;

FIG. 3 is an exploded view of the electromagnetic pen of FIG. 1;

FIG. 4 is a schematic perspective view of the first core and cartridge of FIG. 2;

FIG. 5 is a schematic cross-sectional view of the first core and cartridge of FIG. 4;

FIG. 6 is a schematic perspective view of the second core shown in FIG. 2;

FIG. 7 is a cross-sectional view of the second core shown in FIG. 6;

FIG. 8 is a schematic cross-sectional view of the cartridge and second core of FIG. 2 assembled;

FIG. 9 is a perspective view of the stem lifter shown in FIG. 2;

fig. 10 is a schematic sectional view of the stem lifter shown in fig. 9.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to fig. 3, fig. 1 is a schematic diagram of an overall structure of an electromagnetic pen according to the present invention, fig. 2 is a schematic diagram of a cross-sectional structure of the electromagnetic pen shown in fig. 1, and fig. 3 is a schematic diagram of an exploded structure of the electromagnetic pen shown in fig. 1. The electromagnetic pen 100 includes a hollow pen case 10, a pen core 20, and an electromagnetic induction device 30 disposed in the pen case 10.

The pen shell 10 comprises an upper shell 11, a lower shell 12, a silica gel outer sleeve 13 and a key 14, wherein the upper shell 11, the lower shell 12 and the silica gel outer sleeve are matched with each other, the silica gel outer sleeve 13 is sleeved on the lower shell 12, and the key 14 is arranged on the surface of the lower shell 12. The cartridge 20 includes a nib 21 for writing.

The electromagnetic induction device 30 is used for fixing the pen core 20 and inducing the writing track of the pen core 20. The electromagnetic induction device 30 includes a magnetic core assembly 31, a housing 32, a bracket 33, a ram 34, an elastic assembly 35, a pressure induction assembly 36, and a resonant circuit board 37. The pressure sensing assembly 36 is close to one end of the pen core 20 far away from the pen point 21, and the pen core 20 penetrates through the cartridge 32.

The magnetic core assembly 31 comprises a first magnetic core 311 close to the pen point 21, a second magnetic core 312, a coil 313 wound on the first magnetic core 311, and a silica gel sheath 314 sleeved on one end of the first magnetic core 311 close to the pen point 21. The first magnetic core 311 and the second magnetic core 312 are hollow magnetic cores, and the first magnetic core 311 has a first through hole 3111 through which the pen core 20 passes. The second magnetic core 312 is disposed at an end of the first magnetic core 311 away from the pen point 21, and has a second through hole 3121 for the pen core 20 to pass through. One end of the first magnetic core 311 and the second magnetic core 312 are accommodated in the housing 32. The pen core 20 sequentially penetrates through the silica gel sheath 314, the first magnetic core 311 and the second magnetic core 312, and the silica gel sheath 314 is used for protecting the first magnetic core 311, so that the shockproof and anti-falling effects are achieved. Specifically, the inner diameter of the first through hole 3111 is larger than the inner diameter of the second through hole 3121, and the pen core 20 is correspondingly formed in a stepped structure, and the pen core 20 pushes the second magnetic core 312 to move axially when writing.

Referring to fig. 1 to 5, fig. 4 is a schematic perspective view of the first magnetic core and the cartridge shown in fig. 2, and fig. 5 is a schematic cross-sectional view of the first magnetic core and the cartridge shown in fig. 4. The inner wall surface of the housing 32 is provided with a spacer 321, and at least part of the first magnetic core 311 and the second magnetic core 312 are accommodated in the housing 32 and are respectively arranged at two sides of the spacer 321. Specifically, the partition is a convex structure in this embodiment, and the housing 32 includes a first space 322 for receiving one end of the first magnetic core 311, a second space 323 surrounded by the partition 321, and a third space 324 for receiving the second magnetic core 312.

Specifically, two grooves 325 are formed in one side, close to the pen point 21, of the holder 32, two protrusions 3112 are formed in two sides, far away from one end of the pen point 20, of the first magnetic core 311, the protrusions 3112 are matched and fixed with the grooves 325, so that the first magnetic core 311 is fixed during writing, and at the moment, the first magnetic core 311 can be placed in the holder 32 before injection molding. In another embodiment, a third linear groove (not shown) is disposed on a side of the housing 32 close to the pen head 21, and the protrusion 3112 of the first magnetic core 311 enters the housing 32 through the third linear groove and then rotates to be fixed with the groove 325.

The outer surface of the cartridge 32 at the end far away from the pen point 21 is provided with a thread structure 326, and the thread structure 326 is used for realizing thread fit and fixation with the bracket 33.

Referring to fig. 6 to 8, fig. 6 is a schematic perspective view of the second magnetic core, fig. 7 is a schematic sectional view of the second magnetic core shown in fig. 6, and fig. 8 is a schematic sectional view of the cartridge and the second magnetic core shown in fig. 2 when assembled. The second magnetic core 312 is provided with a step structure 3122 near one end of the pen point 21, the step structure 3122 abuts against the partition 321, the distance between the first magnetic core 311 and the second magnetic core 312 is prevented from being too large, meanwhile, the thickness H2 of the step structure 3122 in the axial direction is smaller than the thickness H1 of the partition 321 in the axial direction, the first magnetic core 311 is prevented from directly abutting against the second magnetic core 312, so that the electromagnetic pen 100 maintains a fixed and accurate distance when not writing, and the distance is: H-H1-H2. The second magnetic core 312 further comprises a first straight groove structure 3123 arranged at one end far away from the pen point 21, and the first straight groove 3123 is used for cooperating with the ejector rod 34 to prevent rotation.

Referring to fig. 1 to 10, fig. 9 is a schematic perspective view of the lift pin shown in fig. 2, and fig. 10 is a schematic cross-sectional view of the lift pin shown in fig. 9. The top bar 34 is provided with a clamping portion 341, a columnar protrusion 342, a second straight groove 343, a blind hole 344 and a smooth end surface 345, which are assembled with the first straight groove 3123. The engaging portion 341 is configured to be fitted into the first linear groove 3123 of the second core 312 to prevent the second core 312 from rotating. The columnar protrusion 342 is disposed on two sides of the push rod 34, two side holes 327 are further disposed on one end of the cartridge 32 away from the pen point 21, and the side holes 327 are respectively assembled with the columnar protrusion 342. The cylindrical protrusion 342 can be engaged with the side hole 327 to prevent the top bar 34 from rotating, and limit the top bar 34, thereby limiting the maximum stroke of the top bar 34. The second straight groove 343 and the blind hole 344 are disposed at an end of the top rod 34 close to the pen point 21, the smooth end face 345 is disposed at an end of the top rod 35 away from the pen point 21, the pen core 20 is inserted into the blind hole 344, the second straight groove 343 is configured to provide deformation abdication for the pen core 20, and the smooth end face 345 abuts against the elastic component 35.

The pressure sensing assembly 36 includes a pressure sensing substrate 361 and a silicone pad 362. The pressure sensing substrate 361 is fixedly arranged on the substrate, and the pressure sensing substrate 361 and the pen core 20, the first magnetic core 311, the second magnetic core 312, the cartridge 32 and the ejector rod 34 are coaxially arranged. The pressure-sensitive substrate 361 combines the capacitive sensor and the substrate hammer into one component, which facilitates assembly.

The resonance circuit board 37 is fixed on the support 33, the support 33 is clamped with the upper shell 11, and the pressure sensing assembly 36 is fixed on one side of the resonance circuit board 37 close to the seat bin 32.

When the electromagnetic pen is not used for writing, the first magnetic core 311 is engaged with the groove 325 of the holder 32, the first magnetic core 311 is fixed in the holder 32, the second magnetic core 312 is abutted against one side of the partition 321, and a fixed distance between the first magnetic core 311 and the second magnetic core 312 is H, wherein H is H1-H2. When writing, the pen core 20 pushes the second magnetic core 312 to move axially, so as to change inductance value.

Compared with the prior art, the utility model provides an electromagnetic pen is through set up the separator 321 in the seat storehouse, second magnetic core 312 is close to nib 21 one end sets up stair structure 3122, stair structure 3122 is less than along axial thickness of separator 321 along axial thickness for first magnetic core 311 and second magnetic core 312 set up respectively in separator 321 both sides, and first magnetic core 311 and second magnetic core 312 keep accurate distance when not writing simultaneously, do not use the diaphragm, practice thrift the cost of manufacture; meanwhile, the cartridge 32 is provided with a groove 325 for clamping the first magnetic core 311, so as to prevent the first magnetic core 311 from rotating; the side hole 327 of the cartridge 32 is engaged with the cylindrical protrusion 342 of the plunger 34, and the engaging portion 341 of the plunger engages with the second magnetic core 312 to prevent the second magnetic core 312 from rotating, so that the electromagnetic frequency of the electromagnetic pen 100 is stable when in use, information such as pressure and track of a user can be captured sensitively, and the writing effect is good.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. An electromagnetic pen, comprising:

a pen core: comprises a pen point for writing;

a first magnetic core: the pen core is provided with a first through hole for the pen core to pass through;

a second magnetic core: the pen core is arranged at one end, far away from the pen point, of the first magnetic core, and is provided with a second through hole for the pen core to pass through, the inner diameter of the first through hole is larger than that of the second through hole, the pen core sequentially passes through the first through hole and the second through hole, and a step structure is arranged at one end, close to the pen point, of the second magnetic core;

a housing having an accommodating space: the inner wall surface of the seat bin is provided with a partition, at least part of the first magnetic core and the second magnetic core are contained in the seat bin, the first magnetic core and the second magnetic core are respectively positioned on two sides of the partition, and the partition abuts against the step structure.

2. The electromagnetic pen of claim 1, wherein a height of the step structure is less than a thickness of the spacer along a length direction of the pen core.

3. The electromagnetic pen according to claim 1, wherein two grooves are formed in one side of the cartridge, which is close to the pen point, two protrusions are formed on two sides of one end of the first magnetic core, which is far away from the pen point, and the protrusions and the grooves are matched and fixed.

4. The electromagnetic pen according to claim 1, wherein a thread structure is arranged on the outer surface of one end of the holder bin, which is far away from the pen point, and the electromagnetic pen further comprises a support, and the support is matched and fixed with the thread structure of the holder bin.

5. The electromagnetic pen of claim 1, wherein one end of the first magnetic core is received in the housing, and the second magnetic core is entirely received in the housing, wherein the receiving space comprises a first space for receiving one end of the first magnetic core, a second space surrounded by the partition, and a third space for receiving the second magnetic core.

6. The electromagnetic pen according to claim 1, wherein a first straight groove is formed in one side of the second magnetic core, which is far away from the pen point, the electromagnetic pen further comprises a push rod for inserting the pen core, the first straight groove is matched and fixed with the push rod, and the pen core is sequentially inserted into the first magnetic core, the second magnetic core and the push rod.

7. The electromagnetic pen according to claim 6, wherein a clamping portion is arranged on one side of the ejector rod close to the second magnetic core, and the clamping portion is clamped with the first straight groove.

8. The electromagnetic pen according to claim 6, wherein two side holes are formed in one end of the holder bin, which is far away from the pen point, columnar protrusions are arranged on two sides of the ejector rod, and the side holes are respectively assembled with the columnar protrusions.

9. The electromagnetic pen according to claim 6, wherein a second straight groove and a blind hole are formed in one side, close to the pen point, of the ejector rod, one end, far away from the pen point, of the ejector rod is a smooth end face, and the pen core is inserted into the blind hole.

10. The electromagnetic pen of claim 3, wherein a third linear groove is formed in one side of the cartridge, which is close to the pen point, and the protrusion of the first magnetic core enters the cartridge through the third linear groove and is fixed with the groove.