CN212910263U - Welding stud of printed circuit board and printed circuit board - Google Patents
Welding stud of printed circuit board and printed circuit board Download PDFInfo
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- CN212910263U CN212910263U CN202022180538.9U CN202022180538U CN212910263U CN 212910263 U CN212910263 U CN 212910263U CN 202022180538 U CN202022180538 U CN 202022180538U CN 212910263 U CN212910263 U CN 212910263U
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- circuit board
- printed circuit
- welding
- stud
- double
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Abstract
The utility model discloses a printed circuit board's welding double-screw bolt and printed circuit board, the double-screw bolt is used for welding printed circuit board, the last welding hole of having seted up of printed circuit board, the double-screw bolt include the weld part and with the fixed part of weld part connection, the cross section of weld part is non-circular, the shape of weld part with the shape in welding hole is unanimous. The utility model discloses a weld part on the double-screw bolt of welding printed circuit board sets to non-circular shape special shape, makes the double-screw bolt after the welding on printed circuit board, and the location is accurate, when receiving the effect of big axial stress when locking the cable, can not rotate along its axial when making the double-screw bolt atress to do not take place between the weld part of double-screw bolt and the welding hole not become flexible, make the welding reliable and stable.
Description
Technical Field
The utility model relates to the field of welding technique, in particular to printed circuit board's welding double-screw bolt and printed circuit board.
Background
Currently, LED display screens are widely used, and mainly comprise a plurality of LED modules assembled and combined together.
Each LED module has a Printed Circuit Board (PCB) on which a stud 100 'is soldered and fixed, and other components can be fixed on the PCB by means of the stud 100'. As shown in fig. 1, the structure of a stud 100' used in a conventional LED module is shown. The stud 100 'includes a soldering portion 20' and a circular fixing portion 10 ', the fixing portion 10' is provided with a mounting hole 21 ', the printed circuit board is provided with a circular soldering hole (not shown in fig. 1) having a shape adapted to the shape of the fixing portion 10', the soldering portion 20 'of the stud 100' is inserted into the soldering hole of the printed circuit board, the bottom of the fixing portion 10 'is attached to the front surface of the printed circuit board, and then the soldering portion 20' and the printed circuit board are soldered together by soldering tin.
However, the existing welding stud 100 ' is a cylinder structure, and is also a cylinder structure when actually welded on a printed circuit board, but after the circular cylinder is welded, because the moment of the stud 100 ' is in the circular direction, the stud 100 ' is easy to rotate along the axial direction when the welding printed circuit board is stressed under the condition of large mechanical stress, and the welding stud 100 ' is easy to move in the axial stressed direction, so that the function of the stud 100 ' is lost. In order to solve the problem, the stud 100 ' needs to be designed in a complicated manner, the stud 100 ' needs to be designed not only in a square shape, but also in two sides of the stud 100 ', and thus, the designed structure is very complicated and expensive.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a printed circuit board's welding double-screw bolt and printed circuit board, the cylinder part receives axial stress to remove easily when aiming at solving the double-screw bolt welding among the prior art on printed circuit board technical problem.
In order to achieve the above object, the utility model provides a stud, the stud is used for welding printed circuit board, the welding hole has been seted up on the printed circuit board, the stud include the weld part and with the fixed part of weld part connection, the cross section of weld part is non-circular, the shape of weld part with the shape in welding hole is unanimous.
Preferably, the welding part includes first welding part and locates the second welding part at first welding part both ends, first welding part is the rectangle, the second welding part is fan-shaped, the second welding part is kept away from one side of first welding part with the outside parallel and level of fixed part.
Preferably, the first welding part and the second welding part are integrally formed.
Preferably, the fixing portion is a cylindrical structure, a mounting hole is formed in the fixing portion, and the mounting hole is formed in one end, far away from the welding portion, of the fixing portion.
Preferably, the mounting hole is a blind hole extending toward the welding portion.
Preferably, an extending direction of the blind hole coincides with an extending direction of the fixing portion.
Preferably, an outer diameter of the welding portion is equal to an outer diameter of the fixing portion.
Preferably, a centerline of the welding part coincides with a centerline of the fixing part.
Preferably, the welding portion and the fixing portion are integrally formed.
Furthermore, the utility model discloses still provide a printed circuit board, the last double-screw bolt that is provided with of printed circuit board as above.
The technical scheme of the utility model in, set up the weld part in the below of fixed part, set the weld part to non-circular structure, the shape and the weld part of the welding hole that correspond with the weld part on the printed circuit board set to unanimously simultaneously. The utility model discloses a weld part on the double-screw bolt of welding printed circuit board sets to non-circular shape special shape, makes the double-screw bolt after the welding on printed circuit board, and the location is accurate, when receiving the effect of big axial stress when locking the cable, can not rotate along its axial when making the double-screw bolt atress to do not take place between the weld part of double-screw bolt and the welding hole not become flexible, make the welding reliable and stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art soldering stud for a printed circuit board;
fig. 2 is a schematic structural view of a welding stud of a printed circuit board according to an embodiment of the present invention;
fig. 3 is a schematic bottom view of a welding stud of a printed circuit board according to an embodiment of the present invention;
fig. 4 is a front view of a welding stud of a printed circuit board according to an embodiment of the present invention;
fig. 5 is a left side view of a welding stud of a printed circuit board according to an embodiment of the present invention.
FIG. 1 is a drawing illustrating:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100’ | Stud bolt | 20’ | Fixing part |
| 10’ | Weld part | 21’ | Mounting hole |
Fig. 2 to 4 are numbered as follows:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
12 | |
| 10 | Weld |
20 | Fixing part |
| 11 | A |
21 | Mounting hole |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
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.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The present invention is described in the directions "up", "down", "left", "right", and the like, with reference to the direction shown in fig. 4, and is only used to explain the relative positional relationship between the respective components in the posture shown in fig. 4, and if the specific posture is changed, the directional indication is also changed accordingly.
As shown in fig. 2 to 5, in an embodiment of the present invention, a welding stud 100 for a printed circuit board is provided, the stud 100 is used for welding the printed circuit board, a welding hole is formed on the printed circuit board, the stud 100 includes a welding portion 10 and a fixing portion 20 connected to the welding portion 10, a cross section of the welding portion 10 is non-circular, and a shape of the welding portion 10 is consistent with a shape of the welding hole. In a preferred embodiment, the soldering part 10 is provided under the fixing part 20, the soldering part 10 is provided in a non-circular structure, and the shape of a soldering hole on the printed circuit board corresponding to the soldering part 10 is provided to be identical to the soldering part 10. The utility model discloses a weld part 10 on the double-screw bolt 100 to welding printed circuit board sets to non-circular shape special shape, makes double-screw bolt 100 weld after on printed circuit board, and the location is more accurate, and when fixed part 20 received the effect of big axial stress when locking the cable, can not rotate along its axial when making the weld part 10 atress on the double-screw bolt 100 to do not take place between weld part 10 and the welding hole of double-screw bolt 100 not hard up, make the welding reliable and stable.
As shown in fig. 2 and 3, the welding portion 10 includes a first welding portion 11 and second welding portions 12 respectively disposed at two ends of the first welding portion 11, the first welding portion 11 is rectangular, the second welding portion 12 is fan-shaped, and one side of the second welding portion 12 away from the first welding portion 11 is flush with the outer side of the fixing portion 20. In a preferred embodiment, the soldering portion 10 is a combination of a rectangular soldering portion 10 and two fan-shaped soldering portions 10 of the stud 100, which are cut off from a cylindrical soldering portion 10 in the prior art, and the soldering hole of the printed circuit board is designed in such a shape that the first soldering portion 11 extends in the left-right direction. After the welding part 10 of the stud 100 is welded on the printed circuit board, when the stud 100 is subjected to external axial stress when the cable is locked, the printed circuit board bears all the axial stress, so the welding part 10 of the stud 100 cannot rotate at the moment, and the welding between the stud 100 and the printed circuit board is more stable. In other embodiments, the first welding portion 11 may be provided in other shapes such as a rectangle, an arc, or a triangle. However, when the shapes of the first solder part 11 and the second solder part 12 are changed, the shape of the solder hole on the printed circuit board is also changed, but the shape of the solder hole is always kept identical to the shape of the solder part 10.
Wherein, the first welding part 11 and the second welding part 12 are integrally formed. The appearance of the integral welding part 10 is more beautiful in appearance, and the first welding part 11 and the second welding part 12 can be integrally formed by injection molding, so that the mold opening cost is reduced, and the cost is saved.
The fixing portion 20 is cylindrical, and a mounting hole 21 is formed in the fixing portion 20, and the mounting hole 21 is formed in an end of the fixing portion 20 away from the welding portion 10. In a preferred embodiment, the extending direction of the fixing portion 20 is the same as the extending direction of the welding portion 10, and both extend in the up-down direction. In other embodiments, one end of the cylindrical fixing portion 20 away from the welding portion 10 may extend toward different directions, and the length of the fixing portion 20 may be set according to actual requirements, so as to meet different height requirements in actual production and use processes. Moreover, a cable terminal (not shown) is disposed at the mounting hole 21, and the fixing portion 20 and the cable terminal are locked and fixed by a locking member, so that the purpose of transferring the cable terminal and the stud 100 is achieved. The locking piece can be a part which is fixedly connected by screws or screws, or the locking piece can also be a buckle or a lock catch, etc. which are connected by clamping. After the stud 100 is welded on the printed circuit board, the welded printed circuit board cannot rotate along the axial direction of the stud 100 under the action of large stress axial stress when the cable is locked, and the welding part 10 of the stud 100 is not loosened, so that the welding is stable and reliable.
As shown in fig. 2, the mounting hole 21 is a blind hole extending toward the welding portion 10. The extending direction of the blind hole coincides with the extending direction of the fixing portion 20. In a preferred embodiment, the mounting hole 21 extends from an end of the fixing portion 20 away from the welding portion 10 to the welding portion 10, and the mounting hole 21 is a blind hole. The extending direction of the blind hole is consistent with the extending direction of the stud, the blind hole and the stud extend along the up-down direction, and the groove bottom of the blind hole is connected with the welding part 10. The center line of the blind hole coincides with the center line of the fixing portion 20, so that when the cable terminal at the blind hole is locked, the axial stress generated to the soldering portion 10 is more uniform, and the soldering portion 10 is prevented from being separated from the soldering hole on the printed circuit board.
Further, the outer diameter of the welding portion 10 is equal to the outer diameter of the fixing portion 20. The centerline of the welding portion 10 coincides with the centerline of the fixing portion 20. In a preferred embodiment, the outer side of the second welding portion 12 of the fan shape on the welding portion 10 coincides with the outer side of the fixing portion 20. The central line of the first soldering portion 11 is the central line of the whole soldering portion 10, and the central line of the soldering portion 10 is overlapped with the central line of the fixing portion 20, so that the soldering of the soldering portion 10 on the printed circuit board can be more stable.
Further, the welding portion 10 and the fixing portion 20 are integrally formed. The appearance of the integral stud 100 is more beautiful in appearance, and the welding part 10 and the fixing part 20 can be integrally formed by injection molding, so that the mold opening cost is reduced, and the cost is saved.
Furthermore, the utility model discloses still provide a printed circuit board, the last welding double-screw bolt 100 that is provided with printed circuit board as above of printed circuit board. The specific structure of the stud 100 refers to the above embodiments, and since the printed circuit board adopts all technical solutions of the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a printed circuit board's welding double-screw bolt, the last welding hole of having seted up of printed circuit board, its characterized in that, the double-screw bolt include the weld part and with the fixed part that the weld part is connected, the cross section of weld part is non-circular, the shape of weld part with the shape in welding hole is unanimous.
2. The printed circuit board stud according to claim 1, wherein the soldering portion includes a first soldering portion and a second soldering portion disposed at opposite ends of the first soldering portion, the first soldering portion has a rectangular shape, the second soldering portion has a fan shape, and a side of the second soldering portion remote from the first soldering portion is flush with an outer side of the fixing portion.
3. The printed circuit board stud of claim 2, wherein the first solder portion is integrally formed with the second solder portion.
4. The printed circuit board stud of claim 2, wherein the fixing portion is cylindrical and has a mounting hole formed therein, the mounting hole being formed at an end of the fixing portion away from the soldering portion.
5. A printed circuit board weld stud according to claim 4, characterised in that the mounting hole is a blind hole, which extends towards the weld.
6. A printed circuit board stud according to claim 5, characterised in that the blind hole extends in the same direction as the fixing portion.
7. A printed circuit board stud according to any one of claims 1 to 6, wherein the outer diameter of the soldering portion is equal to the outer diameter of the fixing portion.
8. A printed circuit board stud according to any one of claims 1 to 6, wherein the midline of the soldering portion coincides with the midline of the fixing portion.
9. A printed circuit board stud according to any one of claims 1 to 6, wherein the soldering portion and the fixing portion are provided integrally.
10. A printed circuit board provided with solder studs of a printed circuit board according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022180538.9U CN212910263U (en) | 2020-09-28 | 2020-09-28 | Welding stud of printed circuit board and printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022180538.9U CN212910263U (en) | 2020-09-28 | 2020-09-28 | Welding stud of printed circuit board and printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212910263U true CN212910263U (en) | 2021-04-06 |
Family
ID=75260981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022180538.9U Active CN212910263U (en) | 2020-09-28 | 2020-09-28 | Welding stud of printed circuit board and printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212910263U (en) |
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2020
- 2020-09-28 CN CN202022180538.9U patent/CN212910263U/en active Active
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