CN216370579U

CN216370579U - Manual tin point pen

Info

Publication number: CN216370579U
Application number: CN202122601493.2U
Authority: CN
Inventors: 柴超峰; 郭嘉帅
Original assignee: Shenzhen Volans Technology Co Ltd
Current assignee: Shenzhen Volans Technology Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-04-26
Anticipated expiration: 2031-10-27
Also published as: WO2023071050A1

Abstract

The utility model provides a manual tin-point pen, which comprises: the pen container is provided with an inner cavity communicated with the two ends; the scaling powder brush is covered at the first end of the pen container; the elastic limiting assembly comprises a clamping plate clamped in the inner cavity and a key abutted against the clamping plate; one end of the key extends out of the pen container, the other end of the key is fixedly connected with the inner wall of the pen container through an elastic piece, and the pen container, the soldering flux brush and the elastic limiting component form a storage cavity in an enclosing mode; the clamping plate is provided with a first through hole penetrating through the clamping plate along the axis direction of the pen container, and the key is provided with a second through hole penetrating through the key along the axis direction of the pen container; the pen point is covered at the second end of the pen container, and a guide hole penetrating through the pen point is formed in the pen point along the axis direction of the pen container. The utility model can accelerate the debugging progress, avoid the EVB damage caused by the existing tin dispensing mode and also prevent the problems of scalding by a hot table and finger pollution caused by tin paste.

Description

Manual tin point pen

Technical Field

The utility model belongs to the technical field of welding auxiliary equipment, and particularly relates to a manual tin point pen.

Background

With the development of wireless communication technology, mobile phones, wireless local area networks, bluetooth and the like have become an indispensable part of social life, and the development of wireless communication technology cannot be separated from the development of radio frequency and microwave technology.

At present, in the process of debugging a radio frequency chip, components such as a chip, a capacitor and an inductor are welded on a test substrate, and then the substrate is welded on an EVB (also called an evaluation board) to achieve the purposes of power supply and debugging.

Normally, the EVB needs to be placed on a hot table for heating and the solder paste is used as a bonding pad of the EVB for dispensing solder, so that the EVB is often damaged due to the fact that the solder paste is applied for too long time, the hot table is easy to scald, fingers are easily polluted by the solder paste, and the like.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiment of the utility model is how to provide a manual tin-dispensing pen so as to solve the problems that an EVB is easily damaged, a hot table is scalded and fingers are polluted by tin paste in the existing tin-dispensing mode.

In order to solve the above technical problem, an embodiment of the present invention provides a manual tin-point pen, including:

the pen container is provided with an inner cavity communicated with two ends;

the soldering flux brush is covered at the first end of the pen container;

the elastic limiting component comprises a clamping plate clamped in the inner cavity and a key abutted against the clamping plate; one end of the key penetrates through the pen container from the interior of the pen container and extends out of the pen container, the other end, far away from the end, extending out of the pen container, of the key is fixedly connected with the inner wall of the pen container through an elastic piece, and the pen container, the soldering flux brush and the elastic limiting assembly jointly enclose a storage cavity for storing solder balls; the clamping plate is provided with a first through hole which penetrates through the clamping plate along the axial direction of the pen container and is used for allowing a single solder ball to pass through, and the key is provided with a second through hole which penetrates through the key along the axial direction of the pen container and is used for allowing a single solder ball to pass through; when the key part is positioned outside the pen container, the elastic piece is in a natural state or a partially compressed state, the second through hole and the first through hole are arranged in a staggered mode, and when the part of the key extending out of the pen container is pressed, the key moves along the compression direction of the elastic piece so that the second through hole is opposite to the first through hole; and the number of the first and second groups,

the pen point cover is arranged at the second end of the pen container, a guide hole penetrating through the pen point cover is formed in the pen point along the axis direction of the pen container, the inner cavity is communicated with the outside through the guide hole, and the aperture of the guide hole is larger than the particle size of the solder ball.

Furthermore, the key comprises an abutting part abutting against one side of the clamping plate close to the pen point, a limiting part formed by bending and extending the abutting part towards the pen point direction, and a pressing part formed by protruding and extending one side of the limiting part far away from the abutting part; the second through hole is formed in the abutting portion, the elastic piece is connected to one end, far away from the limiting portion, of the abutting portion, the elastic piece enables the limiting portion to be abutted to the inner wall of the pen container when being in a natural state or a partially compressed state, and the pressing portion extends to the outside of the pen container.

Furthermore, the pen container is provided with a mounting hole in a penetrating manner at a position corresponding to the pressing portion, and the pressing portion extends out of the pen container from the mounting hole.

Still further, the first through hole is provided in a central region of the card board, and the second through hole is provided in a central region of the abutting portion.

Further, the elastic member is a coil spring disposed in an axial direction perpendicular to the barrel.

Furthermore, the scaling powder brush comprises a covering part which is covered at the first end of the pen container and is detachably connected, a fixing part which is formed by protruding and extending one side of the covering part far away from the pen container, and a brush which is arranged at one side of the fixing part far away from the covering part.

Furthermore, the pen point comprises a covering part which is covered on the pen container and is detachably connected with the covering part and a guide part which is formed by protruding and extending one end of the covering part far away from the pen container, and the guide hole is formed by penetrating one end of the covering part close to the pen container to one end of the guide part far away from the covering part.

Further, the cross-sectional area of the guide portion is gradually reduced from one end near the covering portion to the other end, so that the guide portion is formed in a tapered structure.

Furthermore, the guiding hole comprises a first hole portion arranged on the covering portion and a second hole portion arranged on the guiding portion and communicated with the first hole portion, and the diameter of the first hole portion is larger than that of the second hole portion.

Further, the pen container is one of an iron container, a cobalt container and a nickel container.

Compared with the prior art, the manual tin-soldering pen has the advantages that the soldering flux brush is arranged at the first end of the pen container, the pen point is arranged at the second end of the pen container, the guide hole is formed in the pen point, the clamping plate is further arranged in the inner cavity, the press keys are arranged on the clamping plate in an abutting mode, one ends of the press keys penetrate through the pen container from the interior of the pen container and extend out of the pen container, the other ends of the press keys are fixedly connected with the inner wall of the pen container through the elastic piece, meanwhile, the first through holes for the single solder balls to penetrate through are formed in the clamping plate, the second through holes for the single solder balls to penetrate through are formed in the press keys, when tin soldering is needed, the second through holes of the press keys extending out of the pen container can be opposite to the first through holes in the clamping plate, the single solder balls fall off and slide out of the guide hole in the pen point to the EVB, the soldering flux brush is used for fixing the tin soldering flux brush to finish the tin soldering, and finally the tin soldering can be finished by heating, the whole tin coating process can be completed in a short time, so that the debugging progress is accelerated, the EVB damage caused by the overlong time of coating the tin paste in the conventional tin coating mode is avoided, the service life of the EVB is prolonged, and the problems of scalding by a hot table and finger pollution by the tin paste are also prevented.

Drawings

In order to make the content of the utility model clearer, the drawings needed to be used in the description of the embodiments will be briefly described below, it being clear that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be derived by a person skilled in the art without inventive effort, wherein:

FIG. 1 is a schematic perspective view of a manual tin point pen according to an embodiment of the present invention;

FIG. 2 is an exploded view of a manual pen for dispensing solder according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure of portion A of FIG. 2;

FIG. 4 is a top view of a manual stylus provided in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an enlarged view of the structure of portion B of FIG. 5;

FIG. 7 is an enlarged view of the structure of portion C of FIG. 5;

FIG. 8 is an enlarged view of the structure of the portion D in FIG. 5;

FIG. 9 is a schematic structural diagram of a flux brush in a manual tin-dispensing pen according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a pen tip in a manual tin point pen according to an embodiment of the present invention.

Wherein, 1, a pen container; 11. an inner cavity; 12. a storage chamber; 13. mounting holes; 2. soldering flux brush; 21. a covering part; 22. a fixed part; 23. a brush; 3. an elastic limit component; 31. clamping a plate; 311. a first perforation; 32. pressing a key; 321. an elastic member; 322. a second perforation; 323. an abutting portion; 324. a limiting part; 325. a pressing part; 4. a pen point; 41. a guide hole; 411. a first opening portion; 412. a second opening portion; 42. a covering part; 43. a guide portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the utility model may be practiced. Directional phrases used herein, such as, for example, upper, lower, front, rear, left, right, inner, outer, side, and the like, refer only to the orientation of the accompanying drawings and are, therefore, to be interpreted and understood in a illustrative and non-limiting sense.

The embodiment of the utility model provides a manual tin-point pen, which is shown in the attached drawings 1 to 10 and comprises a pen container 1, a soldering flux brush 2, an elastic limiting component 3 and a pen point 4.

Specifically, the barrel 1 has an inner cavity 11 communicating two ends.

Specifically, the pen container 1 is one of an iron container, a cobalt container and a nickel container. Of course, the pen container 1 can be made of other metal materials according to actual requirements.

In this embodiment, the barrel 1 is a tubular structure. Of course, the pen container 1 can also be in other structures according to actual requirements, such as a structure with a triangular cross section and a structure with a rectangular cross section.

Specifically, the soldering flux brush 2 is covered on the first end of the pen container 1.

Specifically, the soldering flux brush 2 comprises a covering part 21 which is covered at the first end of the pen container 1 and is detachably connected, a fixing part 22 which is formed by protruding and extending one side of the covering part 21 far away from the pen container 1, and a brush 23 which is arranged at one side of the fixing part 22 far away from the covering part 21.

The covering part 21 is connected with the pen container 1 in a covering mode, so that the soldering flux brush 2 can be conveniently detached and replaced, and the covering mode can be realized through a thread structure, an interference fit mode or other detachable modes such as clamping.

In this embodiment, the brush 23 is made of plastic to avoid damaging the EVB when it is applied with flux. Of course, the material can be made of other materials, such as rubber, silicon gel, etc., according to actual requirements.

Specifically, the elastic limiting component 3 comprises a clamping plate 31 clamped in the inner cavity 11 and a key 32 abutted against the clamping plate 31; one end of the key 32 penetrates through the pen container 1 from the interior of the pen container 1 and extends out of the pen container 1, the other end, far away from the end extending out of the pen container 1, of the key 32 is fixedly connected with the inner wall of the pen container 1 through an elastic piece 321, and the pen container 1, the soldering flux brush 2 and the elastic limiting component 3 jointly enclose a storage cavity 12 for storing solder balls; the card board 31 is provided with a first through hole 311 which penetrates through the card board along the axial direction of the pen container 1 and is used for a single solder ball to pass through, and the key 32 is provided with a second through hole 322 which penetrates through the key board along the axial direction of the pen container 1 and is used for a single solder ball to pass through; when the key 32 is partially located outside the pen container 1, the elastic member 321 is in a natural state or a partially compressed state, and the second through hole 322 and the first through hole 311 are arranged in a staggered manner, and when the portion of the key 32 extending out of the pen container 1 is pressed, the key 32 moves along the compression direction of the elastic member 321 so that the second through hole 322 is opposite to the first through hole 311.

Wherein, the elastic element 321 is in a natural state, i.e. when no force is applied and no elastic deformation is generated; in a partially compressed state, i.e., a state in which a partial elastic compression is generated, but a state in which the compression is continued may also be employed.

The abutting of the keys 32 and the card board 31 means that the keys 32 are in close contact with the card board 31, the keys 32 can move relative to the card board 31, and meanwhile, the length of the part of the keys 32 extending out of the pen container 1 is larger than the stroke distance which can be compressed by the elastic piece 321, so that the part of the keys 32 extending out of the pen container 1 can be horizontally limited, and the keys 32 are prevented from sliding into the inner cavity 11 when being pressed.

In the present embodiment, the elastic member 321 is a coil spring disposed in an axial direction perpendicular to the barrel 1. Of course, the elastic member 321 may also be an elastic sheet according to actual requirements.

Specifically, the push button 32 includes an abutting portion 323 abutting against the side of the card plate 31 close to the pen tip 4, a stopper portion 324 formed by bending and extending the abutting portion 323 in the direction of the pen tip 4, and a pressing portion 325 formed by projecting and extending the stopper portion 324 away from the abutting portion 323; the second through hole 322 is disposed on the abutting portion 323, the elastic element 321 is disposed on an end of the abutting portion 323 away from the limiting portion 324, the limiting portion 324 abuts against an inner wall of the pen barrel 1 when the elastic element 321 is in a natural state or a partially compressed state, and the pressing portion 325 extends out of the pen barrel 1.

The limiting portion 324 can be matched with the inner wall of the pen container 1 to limit the pen container, so that the abutting portion 323 is prevented from extending out of the pen container 1 under the elastic force of the elastic member 321.

The first through hole 311 is provided in the center region of the card 31, and the second through hole 322 is provided in the center region of the abutting portion 323, so that the positions of the first through hole 311 and the second through hole 322 can be aligned while ensuring the structural strength of the card 31 and the abutting portion 323.

The pressing portion 325 extends out of the pen container 1, that is, the portion of the key 32 extending out of the pen container 1 is the pressing portion 325.

Specifically, the pen barrel 1 is provided with a mounting hole 13 at a position corresponding to the pressing portion 325, and the pressing portion 325 extends from the mounting hole 13 to the outside of the pen barrel 1, so that the pressing portion 325 can extend to the outside of the pen barrel 1 conveniently.

Specifically, the pen tip 4 is arranged at the second end of the pen container 1 in a covering mode, the pen tip 4 is provided with a guide hole 41 penetrating through the pen container 1 in the axial direction of the pen container 1, the inner cavity 11 is communicated with the outside through the guide hole 41, and the aperture of the guide hole 41 is larger than the particle size of the tin ball of the single family.

Specifically, the pen tip 4 comprises a covering part 42 which is covered on the pen container 1 and forms a detachable connection, and a guide part 43 which is formed by protruding and extending one end of the covering part 42 far away from the pen container 1, wherein the guide hole 41 penetrates from one end of the covering part 42 close to the pen container 1 to one end of the guide part 43 far away from the covering part 42.

Specifically, the cross-sectional area of the guide portion 43 is gradually reduced from one end near the capping portion 42 to the other end, so that the guide portion 43 forms a tapered structure, which facilitates the alignment of the pen tip 4 with a position where tin is to be spotted.

Specifically, guiding hole 41 is including locating the first trompil portion 411 of the portion 42 that closes of lid and locating guide 43 and the second trompil portion 412 that communicates with first trompil portion 411, the aperture of first trompil portion 411 is greater than the aperture of second trompil portion 412, can lead through first trompil portion 411 like this, the solder ball of being convenient for gets into first trompil portion 411 fast when falling down, roll into second trompil portion 412 by first trompil portion 411 again, thereby roll out from nib 4, with better messenger's solder ball landing to the position that needs some tin.

The first opening portion 411 and the second opening portion 412 have an aperture larger than the diameter of a single solder ball.

Compared with the prior art, the manual tin-soldering pen has the advantages that the soldering flux brush 2 is arranged at the first end of the pen container 1, the pen point 4 is arranged at the second end of the pen container 1, the guide hole 41 is arranged on the pen point 4, the clamping plate 31 is arranged in the inner cavity 11, the press keys 32 are arranged on the clamping plate 31 in a butting mode, one end of each press key 32 penetrates through the pen container 1 from the pen container 1 and extends out of the pen container 1, the other end of each press key is fixedly connected with the inner wall of the pen container 1 through the elastic piece 321, meanwhile, the first through hole 311 for allowing a single tin ball to penetrate through is arranged on the clamping plate 31, the second through hole 322 for allowing a single tin ball to penetrate through is arranged on each press key 32, when tin-soldering is needed, the second through hole 322 of each press key 32 extending out of the pen container 1 is opposite to the first through hole 311 on the clamping plate 31, so that the single tin ball falls off and slides out from the guide hole 41 on the pen point 4 to the EVB, and the soldering flux brush 2 is brushed and fixed with the soldering flux, and finally, the tin coating can be completed by heating, the whole tin coating process can be completed in a short time, the debugging progress is accelerated, the EVB damage caused by the fact that the time for coating the tin paste is too long in the existing tin coating mode is avoided, the service life of the EVB is prolonged, and the problems that a hot table is scalded and the fingers are polluted by the tin paste are also prevented.

The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments; the scope of the present invention includes, but is not limited to, the above embodiments, and all equivalent changes in the shape and structure according to the present invention are included in the scope of the present invention.

Claims

1. A manual tin point pen, comprising:

the pen container is provided with an inner cavity communicated with two ends;

the soldering flux brush is covered at the first end of the pen container;

2. The manual tin point pen of claim 1, wherein the key comprises an abutting part abutting against one side of the clamping plate close to the pen point, a limiting part formed by bending and extending the abutting part towards the pen point, and a pressing part formed by protruding and extending one side of the limiting part far from the abutting part; the second through hole is formed in the abutting portion, the elastic piece is connected to one end, far away from the limiting portion, of the abutting portion, the elastic piece enables the limiting portion to be abutted to the inner wall of the pen container when being in a natural state or a partially compressed state, and the pressing portion extends to the outside of the pen container.

3. The manual tin point pen as claimed in claim 2, wherein a mounting hole is formed through the pen barrel at a position corresponding to the pressing portion, and the pressing portion extends from the mounting hole to the outside of the pen barrel.

4. The manual tin point pen of claim 2, wherein the first through hole is disposed in a central region of the card plate and the second through hole is disposed in a central region of the abutment.

5. The manual tin point pen of claim 1, wherein the elastic member is a coil spring disposed in an axial direction perpendicular to the barrel.

6. The manual tin point pen of claim 1, wherein the flux brush comprises a covering portion covering the first end of the pen container and forming a detachable connection, a fixing portion formed by a protruding extension of a side of the covering portion away from the pen container, and a brush arranged on a side of the fixing portion away from the covering portion.

7. The manual tin point pen of claim 1, wherein the pen tip comprises a covering portion covering the pen barrel and forming a detachable connection, and a guide portion formed by protruding and extending one end of the covering portion far away from the pen barrel, and the guide hole penetrates from one end of the covering portion close to the pen barrel to one end of the guide portion far away from the covering portion.

8. The manual point tin pen of claim 7, wherein the cross-sectional area of the guide portion tapers from one end near the cover portion to the other end such that the guide portion forms a conical structure.

9. The manual solder ball point pen of claim 7, wherein the guide hole includes a first opening portion provided in the covering portion and a second opening portion provided in the guide portion and communicating with the first opening portion, and the first opening portion has a larger diameter than the second opening portion.

10. The manual tin point pen of claim 1, wherein the pen holder is one of an iron holder, a cobalt holder, and a nickel holder.