TWM513540U - Surface mount elastic piece with rotatable auxiliary supporting - Google Patents

Description

Surface mount shrapnel with convoluted auxiliary support

A surface mount shrapnel, in particular a surface mount shrapnel with a convoluted auxiliary support.

Surface mount shrapnel is used in a wide range of electronic circuit devices, such as for signal transmission, grounding, or heat conduction, and as a buffer for circuit contacts or mechanical structure contact locations. As the functions of various electronic products are complicated, lightweight, and miniaturized, the size of the shrapnel is relatively required to be increasingly miniaturized. In addition, it is necessary to consider whether the structural strength of the shrapnel affects the stability of its function.

The common shrapnel is made of a very thin piece of metal stamped and bent. The manufacturing process is cut into the required size by a precision machine, and then processed by a precision machine to bend the cut piece of metal several times. . Since the surface mount shrapnel has a mounting section for soldering to the circuit board and an adsorption section facing upward for the suction and adsorption of the suction nozzle, the two tend to extend in parallel in a corresponding manner, but only between the mounting section and the adsorption section The elastic arm connecting the aforementioned installation section and the adsorption section serves as an elastic support. Once the force is applied too much, the elastic piece will easily cause irreversible deformation and lose its effectiveness, and the elastic piece as a whole is subjected to pressure distortion or even flattening.

Therefore, how to reduce the structural strength of the up and down direction in the case of reducing the size of the shrapnel, so that the shrapnel can maintain elastic deformation, resisting extra pull and compression and not easily deformed and damaged, that is, this creation attempts to provide technological innovation and strive to solve the important problem.

One of the aims of the present invention is to provide a surface mount shrapnel with a convoluted auxiliary support that allows the surface mount shrapnel to be more miniaturized for use in more sophisticated electronic devices.

Another object of the present invention is to provide a surface mount shrapnel with a convoluted auxiliary support that resists pressing down and is not easily damaged.

To achieve the above object, the present invention provides a surface mount shrapnel having a convoluted auxiliary support, comprising: a flat, welded mounting wall having at least two side edges; a main side wall and at least one auxiliary side wall, the aforementioned main side wall and the foregoing The auxiliary side walls respectively include a base section extending correspondingly to one of the side edges, and a rising section respectively bent by the base section and extending away from the mounting wall; and a rising section of the main side wall away from the foregoing foundation a projection wall bent at an end portion of the segment and extending in a direction corresponding to the mounting wall, and a projection of the adsorption wall toward the mounting wall may cover at least a portion of the rising portion of the auxiliary sidewall, such that the adsorption When the wall is pressed downward toward the mounting wall by a predetermined distance, it is supported by the rising section of the auxiliary side wall.

Therefore, the surface-mounted elastic piece with the convoluted auxiliary support disclosed in the present invention has a structure in which the surface of the surface-mounted elastic piece is inwardly rotated to make a predetermined downward force, in addition to making the surface-mounted elastic piece smaller in size. When the direction is stressed, such a structure can resist excessive pressure of excessive force; reduce the chance of deformation of the surface-mounted shrapnel under excessive force, and make the miniaturization of the electronic device feasible.

1, 1'‧‧‧ mounting wall

11, 11' ‧ ‧ side edge

13‧‧‧ Positioning Department

130‧‧‧Inward gap

1302'‧‧‧Non-round holes

3‧‧‧ main side wall

31, 71‧‧‧ basic section

310, 710‧‧‧ end

33, 73‧‧‧ rising section

5, 5" ‧ ‧ adsorption wall

7, 7" ‧ ‧ auxiliary side wall

75, 75" ‧ ‧ support section

9‧‧‧Restricting the expansion wall

1 is a perspective view of a surface-mounted elastic piece having a convoluted auxiliary support according to a first preferred embodiment of the present invention; The intent is to indicate that the main side wall and the auxiliary side wall of the elastic piece extend inwardly in a laterally bent manner; FIG. 2 is a front view of the embodiment of FIG. 1 , illustrating that the rising section of the main side wall and the auxiliary side wall are bent by the base section and FIG. 3 is a top plan view of the surface-mounted elastic piece with the swing auxiliary support according to the first preferred embodiment of the present invention, illustrating the adsorption wall formed by the extension of the main side wall and the support section formed by the auxiliary side wall. FIG. 4 is a bottom view of the surface-mounted elastic piece with the swinging auxiliary support according to the first preferred embodiment of the present invention, mainly illustrating the relative positions of the recessed positioning portions formed on the side edges of the mounting wall of the elastic piece; FIG. The second preferred embodiment of the present invention has a bottom view of a surface mount shrapnel having a convoluted auxiliary support, mainly illustrating a case where the recessed positioning portion is not a circular through hole; and FIG. 6 is a third preferred embodiment of the present invention having a swing assisting support. A top plan view of the surface mount shrapnel, illustrating the adsorption wall formed by the extension of one main side wall and the support section formed by the extension of the three auxiliary side walls Corresponding to position.

The foregoing and other technical aspects, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments illustrated in the accompanying drawings. In the embodiments, the same elements will be similar. The label indicates.

The first preferred embodiment of the surface mount shrapnel having the convoluted auxiliary support of the present invention is shown in FIG. 1 and FIG. 2, respectively. The surface mount shrapnel having the convoluted auxiliary support has a flat mounting wall for soldering to the circuit board. For convenience of explanation, each side of the mounting wall 1 is referred to as a side edge 11. In this example, the mounting wall 1 has four side edges 11 of a slightly square configuration, and the side edges 11 correspond to each other; The side edge 11 is bent to form a main side a wall 3 and an auxiliary side wall 7, the main side wall 3 includes a base section 31 extending in a direction perpendicular to the height, and the end portion 310 in the lateral direction of the base section 31 is further bent in the height direction to form a side away from the mounting wall. 1 and at the same time away from the base section 31, an ascending section 33 formed by three-dimensionally extending in a three-dimensional direction. Similarly, the auxiliary side wall 7 also has an opposite base section 71 and is bent relative to the end portion 710 of the base section 71 side direction. An ascending section 73 extending away from the direction of the mounting wall 1 is formed. Thereby, the base sections 31, 71 of the main side wall 3 and the auxiliary side wall 7 and the rising sections 33, 73 together form an intertwined structure.

The other pair of side edges 11 are respectively bent and extend away from the mounting wall 1 to extend the limiting expansion wall 9 located outside the rising section 33 of the main side wall 3 and the rising section 73 of the auxiliary side wall 7. Since the two limiting expansion walls 9 are located outside the rising sections 33, 73, respectively, such that once the rising sections 33, 73 are expanded outwardly, the limiting expansion wall 9 can be resisted from the outside to the inside, providing further structural protection.

Referring to FIG. 3 and FIG. 4 together, the main side wall 3 in this example is separated from the end portion 310 of the base section 31 by the rising section 33 outside the base section 31 and the rising section 33 which is continuously turned twice. The bending wall 5 is stretched again to form an adsorption wall 5 extending substantially parallel to the mounting wall 1 described above. Due to the position and size of the adsorption wall 5, when the suction nozzle of the surface mount implement applies a negative pressure to the adsorption wall 5, the entire elastic piece can be sucked and removed. The auxiliary side wall 7 includes a support section 75 extending from the end portion 710 of the rising section 73 away from the base section 71 and corresponding to the projection direction of the adsorption wall 5 of the main side wall 3; that is, when the adsorption wall is When the force is pressed downward by a predetermined distance, it is in contact with the support section 75. For example, when the elastic piece is about 1 cubic millimeter in size, the adsorption wall 5 is lowered by about 0.2 to 0.3 mm, and is supported by the support section 75 in the height direction, and the second heavy support other than the main side wall 3 is provided to enhance the structural strength.

And since the main side wall 3 and the auxiliary side wall 7 both extend in the inner direction to form a semi-closed shape, when the adsorption wall 5 is pressed down, the support section 75 provides the second heavy support, and the rising sections 33 and 73 are further It will be elastically deformed and expand outward. At this time, it will be further supported by the base segments 31, 71 and the limiting expansion wall 9 in the horizontal direction, so that the overall mechanical strength of the elastic piece in the up and down direction is high, and it is not easy to be pressed. Both produce irreversible over-deformation.

Since the surface mount shrapnel is soldered to the circuit board, the mounting wall 1 is in contact with the solder paste on the circuit board. During the reflow process, in order to ensure that the surface mount shrapnel can be firmly bonded to the circuit board, it is usually A positioning portion 13 for recessing or perforating the tin to be tinned is formed on the mounting wall 1. In this example, two inward notches 130 are formed at opposite positions of the side edges 11, respectively. When the surface mount shrapnel passes through the tin furnace, the solder paste will climb toward the inward notch 130, thereby improving the soldering effect even if carelessly Pulling or twisting the shrapnel does not easily break away from the soldering position on the board.

Of course, as can be easily understood by those skilled in the art, in the second embodiment of the present invention, as shown in FIG. 5, the recessed positioning portion may also be a non-circular through hole 1302' formed on the mounting wall 1'. In this case, it is exemplified as an ellipse. Of course, for example, two circular holes, three circular holes or any other shape perforations are formed. As long as the circular perforations are non-central, they can simultaneously resist the pulling force and the twisting shear. Force, to achieve the effect of increasing the bonding strength. As for the same structure and relative relationship as those of the foregoing first embodiment, the description will not be repeated here.

Of course, as can be easily understood by those skilled in the art, the auxiliary side walls can have different structures and options. The third preferred embodiment of the present invention, as shown in FIG. 6, can also be corresponding to the other two side edges 11" of the mounting wall. Inwardly bent to form two additional auxiliary side walls 7", the auxiliary side wall 7" in this example and the auxiliary side wall 7 of the first preferred embodiment are identical in appearance and structure, and are indistinguishable from each other, and do not affect the case. Implementation: the support section 75" of the auxiliary side wall 7" is covered by Below the adsorption wall 5", when there is a downward pressure, there are three support sections 75" which are in contact with the above-mentioned adsorption wall 5" and share the downward pressure to increase the structural strength.

In summary, the surface-mounted shrapnel with the swinging auxiliary support in this case has an extremely small external dimension, which effectively saves space and the internal structure is more stable, so that the shrapnel is not easily damaged when pressed under pressure, and not only provides effective guiding and elasticity. Buffering can also reduce the material cost of manufacturing due to size reduction. However, the above is only a preferred embodiment of the present invention, and the scope of the novel implementation is not limited thereto, and any simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the novel specification are It should remain within the scope of this new patent.

1‧‧‧Installation wall

11‧‧‧ side edge

3‧‧‧ main side wall

31, 71‧‧‧ basic section

310, 710‧‧‧ end

33, 73‧‧‧ rising section

5‧‧‧Adsorption wall

7‧‧‧Auxiliary side wall

9‧‧‧Restricting the expansion wall

Claims (6)

A surface mount shrapnel having a convoluted auxiliary support for soldering to a circuit board, comprising: a flat, solderable mounting wall having at least two side edges; a main side wall and at least one auxiliary side wall, said main side wall and said The auxiliary side walls respectively include a base section extending correspondingly to one of the side edges, and a rising section respectively bent by the base section and extending away from the mounting wall; and a rising section of the main side wall away from the foregoing foundation a projection wall bent at an end portion of the segment and extending in a direction corresponding to the mounting wall, and a projection of the adsorption wall toward the mounting wall may cover at least a portion of the rising portion of the auxiliary sidewall, such that the adsorption When the wall is pressed downward toward the mounting wall by a predetermined distance, it is supported by the rising section of the auxiliary side wall. The surface-mounted elastic piece with the swing assisting support according to the first aspect of the invention, wherein the auxiliary side wall further comprises a support section extending from the rising section and corresponding to a projection direction of the adsorption wall, such that When the adsorption wall is pressed downward, it will contact the aforementioned support section. A surface-mounted elastic piece having a swing auxiliary support according to claim 1, wherein the mounting wall has four side edges, and the main side wall and the auxiliary side wall are bent and extended by two side edges opposite to each other. Among the four side edges, the remaining side edges are respectively bent and extend away from the mounting wall to extend a limiting expansion wall located outside the rising section. A surface-mounted elastic piece having a convoluted auxiliary support according to claim 1, wherein the mounting wall further comprises at least one positioning portion for the tin-climbing recess. A surface-mounted elastic piece having a convoluted auxiliary support according to claim 4, wherein the recessed positioning portion is at least two inward notches respectively formed at opposite positions of the side edges. A surface mount dome having a convoluted auxiliary support according to claim 4, wherein the recessed positioning portion is at least one non-circular through hole formed in the mounting wall.