TWI442874B - Elastic sheet structure and array type elastic sheet device using the same - Google Patents

Description

Shrapnel structure and array type shrapnel device using the same

The invention relates to a shrapnel structure and an array shrapnel device using the shrapnel structure.

The electronic product is usually provided with a shrapnel structure, and the elastic structure interacts with the pressing member to electrically connect the conductive elements of the electronic product, for example, the elastic structure is arranged between the electronic component and the circuit board to electrically conduct the two. . The electrical conduction can ground the electronic components or provide electromagnetic protection to other electronic components on the electronic product.

The shrapnel structure commonly seen in the industry is generally a metal sheet bent into a "ㄈ" shape, but the shrapnel is not durable. In the use of the elastic piece, the depth of the pressing piece against the elastic piece is not limited, and the elastic piece is lost due to the overpressure of the elastic piece by the pressing piece.

Further, in the conventional shrapnel, there is generally only one elastic piece of the elastic piece. When applied, there is only one contact point between the elastic piece and the pressing piece. The elastic piece of only one elastic segment passes through the elastic piece when there is a problem in the elastic section. The conductive element that is turned on cannot be turned on, causing the problem of electrical conduction failure of the electronic product.

In view of the above, it is necessary to provide a shrapnel structure that is novel in structure and durable.

In addition, it is necessary to provide an array type shrapnel device which is simple in fabrication and which satisfies multi-point contact by applying the above-described shrapnel structure.

A shrapnel structure is formed by bending a metal sheet, the elastic sheet structure comprising a main body section, a fastening section, an elastic section and two supporting sections, wherein the fastening section and the elastic section are formed by the main body section The opposite edges are formed by vertically bending toward the first surface of the main body segment, and the two supporting segments are formed by the other opposite edges of the main body segment extending perpendicularly toward the first surface of the main body segment, and the The two support segments are supported by the fastening segments, each of the support segments comprising a "convex" shaped body and two side wings integrally connected with the "convex" shaped body, the two side wings of each of the support segments facing the The outer side of the fastening section is bent at a certain angle; the elastic section is located between the two supporting sections, and the distance from the top of the elastic section to the fastening section is greater than the distance from the top of the two supporting sections to the fastening section; The elastic segment is configured to support the pressing member, and when the pressing member is pressed, the elastic segment is elastically deformed and contracted, and when the pressing member is further pressed, the elastic segment is deformed. Further increasing, the pressing member is directly supported by the two "Convex" shaped body and the supporting section on the flanks.

An array type elastic device is formed by bending a metal sheet, and comprises a plurality of main body segments, a plurality of fastening segments, a plurality of elastic segments and a plurality of support segments, wherein each of the fastening segments and each of the elastic segments is Corresponding two edges of the corresponding body segment are formed by vertically bending toward a first surface of the body segment, and each of the two support segments is formed by another opposite edge of the body segment toward the body segment A surface is vertically bent and extended, and the two supporting segments are supported by a corresponding fastening segment, each of the supporting segments comprising a "convex" shaped body and two side wings integrally connected with the "convex" shaped body The two side wings of each of the support segments are bent at an angle toward an outer side of the fastening segment; the each elastic segment is located between the two support segments And the distance from the top of the elastic segment to the fastening segment is greater than the distance from the top of the two support segments to the fastening segment, and each two adjacent body segments are disposed in parallel and the first surface of each adjacent two bodies is oppositely disposed. The plurality of elastic segments are used for supporting the pressing member, and when the pressing member is pressed, the plurality of elastic segments are elastically deformed and contracted, and when the pressing member is further pressed, the plurality of elastic members The amount of deformation of the segment is further increased such that the abutting member is directly supported on the "convex" body and the side wings of the plurality of support segments.

Compared with the prior art, the elastic section of the shrapnel structure of the present invention is formed with a support section. When the pressing member presses the elastic structure, the depth of the pressing elastic section is limited by the supporting section, so that the elastic section does not appear. The elastic segment loses its elasticity when pressed, and the support segment is supported by the two protrusions on the fastening segment, and the support segment is not bent or broken by pressure, and the structure is stable and durable. In addition, the array type elastic device of the present invention is formed by bending a bent portion of a piece of material, and the manufacturing process is simple, and the array type elastic device has a plurality of elastic segments, and the pressing member abuts the array elastic piece. When the device is installed, a plurality of elastic segments are in contact with the pressing member, thereby ensuring the requirement of multiple contact with the pressing member, and the electrical conduction between the circuit board and the pressing member is stabilized.

Referring to FIG. 1 and FIG. 4, a shrapnel structure 100 is used to electrically connect a circuit board 500 and a pressing member 600. The shrapnel structure 100 is formed by bending a metal sheet, and the desired contour of the metal sheet can be formed by stamping.

Please refer to FIG. 1 , in an unfolded state of the elastic structure 100 , the elastic structure 100 includes a main body segment 10 , a fastening segment 20 , two support segments 30 , and an elastic segment 40 . . The body segment 10 includes a square body 12 and four bent edges 14 extending along the four edges of the square body 12. The square body 12 includes a first surface 122. Each of the bending edges 14 has a rectangular plate structure when unfolded, and has a curved plate structure when bent. The bending edge 14 acts as a circular arc in the shrapnel structure 100. The opposite sides of the square body 12 are respectively connected to the fastening section 20 and the elastic section 40 through the bending edge 14 , and the other opposite sides of the square body 12 are respectively connected to the two through the bending edge 14 Support section 30.

The fixing section 20 is a substantially rectangular metal sheet structure, and a fixing groove 22 is defined in the middle, and the fixing groove 22 includes a plurality of arc grooves and rectangular grooves, and forms a fixing groove pattern. In the case of fixing, in the embodiment, the welding is taken as an example, and the fixing section 20 is fixed to the circuit board by incorporating solder into the fixing groove 22. The two sides of the fastening section 20 are respectively formed with protrusions 24, which can be formed by stamping the bottom of the metal sheet through the mold. At the four corners of the fastening section 20, an "L" shaped angle can be formed by punching and cutting, respectively.

The two supporting segments 30 are formed in a substantially square metal sheet structure on opposite sides of the main body segment 10 and connected to the main body segment 10 via two opposite bending edges 14 . Each support section 30 includes a generally "convex" shaped body 32 and two side flaps 34 that are integrally coupled to the body 32. The two side flaps 34 are formed on both sides of the "convex" shaped body 32 to form a square structure of the support section 30.

The elastic section 40 is a rectangular strip-shaped metal piece, and the elastic section 40 includes a first connecting section 42 and a second connecting section 44, a resisting section 46, and a tailing section 48, respectively. Three curved joints 49. The first connecting section 42 , the second connecting section 44 , the abutting section 46 and the tailing section 48 are sequentially connected by the bent section 49 .

Referring to FIG. 2 and FIG. 3 , the fastening section 20 and the two support sections 30 are respectively bent into the elastic structure 100 by the corresponding bending section 14 relative to the main body section 10 . The fastening section 20 is bent such that the fastening section 20 is vertically bent toward the first surface 122 of the main body section 10 through a bending edge 14 . The two supporting segments 30 are bent, and each of the supporting segments 30 is bent perpendicularly to the first surface 122 of the main body segment 10 and the fixing segment 20 by a bending edge 14 to bend the two supporting segments 30 The two sides of the fastening section 20 are perpendicular to the fastening section 20, and the body 32 of the support section 30 is in contact with the protrusion 24 on both sides of the fastening section 20 with respect to one end of the side flap 34. The two side flaps 34 of the support section 30 are bent such that the two side flaps 34 of each of the support sections 30 are bent at an angle to the outer side of the fastening section 20.

One end of the first connecting portion 42 is bent perpendicularly to the first surface 122 of the main body segment 10 through a bent edge 14 so that the first connecting portion 42 and the fixing portion 20 are substantially bent. Parallel, and the first connecting section 42 is located between the two supporting sections 30. The other end of the first connecting portion 42 is bent at one end by the bent portion 49 and the second connecting portion 44, so that the second connecting portion 44 and the first connecting portion 42 are connected in a substantially "ㄥ" shape. Structure, and the second connecting section 44 protrudes from the top of the two supporting sections 30. The other end of the second connecting portion 44 is bent at one end by the bent portion 49 and the resisting portion 46. The resisting portion 46 is substantially parallel to the first connecting portion 42. Then, the first connecting section 42, the second connecting section 44, and the resisting section 46 are surrounded by the three curved joints 49 to form a substantially "ㄈ"-shaped structure. The other end of the abutting section 46 is bent at one end of the tailing section 48 through a bent portion 49, and the tailing section 48 is an end of the elastic section 40, and is substantially enclosed by the elastic section 40. The internal space (not labeled) extends inside and has a short length to avoid Free of foreign objects. An opening 401 is formed between the abutting section 46 and the tail connecting section 48 and the first connecting section 42 . The opening 401 can be reduced when the pressing member 600 abuts against the resisting section 46 .

Referring to FIG. 4, when the elastic structure 100 is electrically connected to the circuit board 500 and the pressing member 600, the fastening section 20 is fixed to the circuit board 500 through the fixing slot 22, and the pressing member 600 presses the elastic section. 40, the abutting portion 46 of the elastic segment 40 elastically resists the pressing member 600, and the opening 401 of the elastic portion 40 becomes smaller, and the first connecting portion 42 of the elastic portion 40 and the second connecting portion of the elastic portion 40 are connected. The connecting portion 44 is elastically deformed, and the two supporting segments 30 are supported when the pressing member 600 is further pressed down to a certain position, and the side flaps 34 unfolded on each of the supporting segments 30 can support the pressing member 600 more stably, thereby The elastic section 40 is prevented from being subjected to excessive depression to cause irreversible deformation, ensuring the elasticity of the elastic section 40. In addition, since the protrusions 24 on both sides of the fastening section 20 support the two support sections 30, the two support sections 30 are not bent or broken due to compression, so the structure is stable and durable.

Referring to FIG. 5 and FIG. 6 , an array type elastic device 120 having two elastic segments 40 and 240 includes a spring structure 100 and a first connecting piece integrally connected with the elastic structure 100 . Structure 200. The array type elastic device 120 is formed by bending a metal piece.

Referring to FIG. 5 , the array of the elastic device 120 is unfolded into a metal sheet. The first connecting structure 200 includes a main body segment 210 , a fastening portion 220 , a supporting portion 230 , and an elastic portion 240 . The first tab structure 200 is substantially identical in structure to the shrapnel structure 100, except that the first tab structure 200 has one less support segment 30 than the shrapnel structure 100.

The two opposite sides of the main body segment 210 are respectively connected to the fastening portion 220 and the elastic portion 240, and the one side of the fastening portion 20 away from the elastic structure 100 is connected to the support portion 230, so that the support portion 230 is located at a fixed position. The connecting portion 220 is on the opposite side of one of the connecting sides of the fastening section 20.

A protrusion 224 is formed on two sides of the fastening section 220. The fixing section 220 is formed with one side of the protrusion 224 integrally connected with one side of the elastic structure 100 formed with the protrusion 24, and the first connecting piece structure 200 The unfolding direction is opposite to the unfolding direction of the shrapnel structure 100.

Referring to FIG. 6, the unfolded metal sheet is bent into an array of the elastic device 120. After the array of elastic devices 120 is formed, the main body section 10 of the elastic structure 100 is located on one side of the fastening section 20, and the fastening section 20 is connected with the fastening section 220 of the first connecting piece structure 200 to form a rectangular metal. In the plate structure, the main body section 210 of the first connecting piece structure 200 is located on one side of the fastening section 220 and opposite to one side to which the main body section 10 is attached. The bending manner of the elastic segment 240 is substantially the same as the bending manner of the elastic segment 40 of the elastic structure 100, and the surrounding structure is substantially the same, because the bending directions of the two elastic segments 40, 240 are opposite, The direction of the opening 401 of the elastic section 40 of the shrapnel structure 100 is opposite to the opening direction (not shown) of the elastic section 240 of the enclosing web structure 200. The abutting section 46 of the elastic section 40 and the abutting section (not shown) of the elastic section 240 protrude from the supporting section 30, 230, and the abutting sections of the resisting section 46 and the elastic section 240 are on the same horizontal surface, when abutting, Each of the abutting sections is in contact with the pressing member 600.

When the shrapnel array 120 is electrically connected to the circuit board 500 and the pressing member 600, the two elastic segments 40 and 240 of the array shrapnel device 120 respectively abut the pressing member 600, thereby ensuring multiple contact with the pressing member 600. Make 500 boards The electrical connection with the pressure member 600 is stable. In addition, the array type elastic device 120 is formed by stamping a metal sheet and then bending the respective portions, and the manufacturing process is simple.

Referring to FIG. 7 to FIG. 8 , an array of the elastic device 130 having the three body segments of the elastic structure 100 includes a spring structure 100 , a first connecting structure 200 and a second connecting structure 300 . . The second connecting piece structure 300 is the same as the first connecting piece structure 200, and includes a main body section 310, a fastening section 320, a supporting section 330 and an elastic section 340.

The elastic structure 100 is connected to the fastening section 220 of the first connecting piece structure 200 by the fastening section 20 thereon, and the second connecting piece structure 300 passes through the fixing section and the first connecting piece structure 200. The other side of the fastening section 220 is connected and integrated, and the second tab structure 300 is unfolded in the same direction as the expansion direction of the elastic structure 100. The unfolded metal piece is surrounded by the array type elastic device 130. The enclosing process of the array type elastic piece device 130 is similar to the enclosing process of the array type elastic piece device 120, and will not be described here. After the enclosing, the three solid segments form a substantially strip-shaped plate structure, each of the supporting segments is perpendicular to the strip-shaped plate structure and is spaced apart from each other by a fixed segment, and each elastic segment is respectively located between the two supporting segments and adjacent to each other. The elastic segments have opposite openings. The abutting segments of each elastic segment protrude from the two supporting segments, and each of the abutting segments is located on the same horizontal surface. When abutting, each of the abutting segments is respectively in contact with the pressing member.

Referring to FIG. 9 to FIG. 10 , an array type elastic device 140 having four elastic segments includes a spring structure 100 , a first connecting piece structure 200 , a second connecting piece structure 300 , and a third connecting piece structure . 400. The third connecting piece structure 400 is connected to the first connecting piece structure 200 and the second connection The sheet structure 300 is identical in structure and includes a body segment 410, a fastening segment 420, a support segment 430, and an elastic segment 440.

The elastic piece structure 100 is integrally connected to the fastening section 220 of the first connecting piece structure 200 by the fastening portion 20 thereon, and the second connecting piece structure 300 and the third connecting piece structure 400 are mutually connected in the above manner. Relative connection. The unfolded metal piece is further encircled into the array type elastic device 140. The enclosing process of the array type elastic piece device 140 is similar to the surrounding process of the array type elastic piece device 130, and will not be described here.

It can be inferred that an array of elastic devices having a plurality of elastic segments can be produced by a metal sheet, which can be made by a structure of the elastic piece and a plurality of connecting piece structures. Each of the fastening segments abuts each other to form a strip-shaped plate structure. Each of the support segments is perpendicular to the strip-shaped plate structure and is spaced apart from each other by a fixed-section segment, and each of the elastic segments is located between the two support segments and the distance from the top of the elastic segment to the fixed segment is greater than The distance from the top of the two supporting sections to the fixing section, the resisting section of each elastic section protrudes from the two supporting sections, and each resisting section is on the same horizontal plane, and each resisting section is in contact with the pressing member when abutting . Each two adjacent body segments are disposed in parallel and the first surfaces of each of the adjacent two bodies are oppositely disposed.

Referring to FIG. 11 , the shrapnel structure 100 and the array shrapnel devices 120 , 130 , and 140 are respectively mounted on the circuit board 500 . The shrapnel structure 100 or the array shrapnel device 120 is disposed at different positions on the circuit board 500 . , 130, 140, can fully meet the needs of the multi-point contact between the circuit board 500 and the pressing member.

In summary, the elastic segment 40 of the elastic structure 10 of the present invention is formed around the periphery. When there is a supporting portion 30, when the pressing member 600 presses the elastic structure 100, the depth of the pressing elastic portion 40 is restricted by the supporting portion 30, so that the elastic portion 40 does not have an overpressure and the elasticity is lost, and the supporting portion 40 is supported by the two projections 24 on the fastening section 20, the support section 40 is not bent or broken by compression, and the elastic structure 100 is stable and durable. In addition, the array type elastic device of the present invention is formed by bending a metal sheet, and the manufacturing process is simple, and the array type elastic device has a plurality of elastic segments, and the elastic member has a plurality of elastic when resisting the array elastic device. The segment is in contact with the pressing member, thereby ensuring the requirement of multiple contact with the pressing member, and the electrical conduction between the circuit board and the pressing member is stabilized.

100‧‧‧Shrap structure

34‧‧‧Flanking

500‧‧‧ circuit board

40, 240 340, 440‧‧‧ elastic section

600‧‧‧Resistance parts

42‧‧‧First connection segment

10, 210 310, 410‧‧‧ main body

44‧‧‧Second connection

12‧‧‧Square body

46‧‧‧Resistance

122‧‧‧ first surface

48‧‧‧Terminal section

14‧‧‧Bending edge

49‧‧‧Bend section

20, 220 320, 420‧‧‧ fixed sections

401‧‧‧ openings

22‧‧‧Fixed slot

120, 130, 140‧‧‧Array shrapnel device

24, 224‧‧ ‧ raised

200‧‧‧First connecting piece structure

30, 230 330, 430‧‧ ‧ support section

300‧‧‧Second connection piece structure

32‧‧‧Ontology

400‧‧‧ Third connecting piece structure

1 is a schematic view showing a preferred embodiment of the shrapnel structure of the present invention; FIG. 2 is a schematic view of a preferred embodiment of the shrapnel structure of the present invention; FIG. 3 is a side view of a preferred embodiment of the shrapnel structure of the present invention; FIG. 5 is a schematic view showing the state in which the elastic structure of the elastic structure of the present invention is under pressure; FIG. 5 is a schematic view showing the deployment of the array elastic device having two elastic segments in the first preferred embodiment of the array type elastic device of the present invention; The first preferred embodiment of the array type elastic device of the present invention has an overall schematic view of an array type elastic device of two elastic segments; and FIG. 7 is a second preferred embodiment of the array type elastic device of the present invention having an array of three elastic segments. FIG. 8 is a schematic view showing the second preferred embodiment of the array type elastic device of the present invention having three bombs; FIG. 9 is a schematic view showing a third embodiment of the array type elastic device of the present invention, wherein the array type elastic device having four elastic segments is deployed; FIG. 10 is an array type elastic device of the present invention; The third preferred embodiment has an overall schematic view of an array type elastic device of four elastic segments; and FIG. 11 is a schematic view showing the structure of the elastic piece of the present invention and the structure of the plurality of array type elastic devices on the circuit board.

100‧‧‧Shrap structure

42‧‧‧First connection segment

20‧‧‧Fixed section

44‧‧‧Second connection

22‧‧‧Fixed slot

46‧‧‧Resistance

24‧‧‧ bumps

48‧‧‧Terminal section

30‧‧‧Support section

49‧‧‧Bend section

32‧‧‧Ontology

401‧‧‧ openings

34‧‧‧Flanking

Claims (15)

A shrapnel structure formed by bending a metal sheet for supporting a pressing member, wherein the shrapnel structure comprises: a main body segment, a fixing portion, an elastic portion and two supporting segments, the solid The connecting portion and the elastic segment are formed by vertically bending the opposite edges of the main body segment toward a surface of the main body segment, the two supporting segments being opposite to the surface of the main body segment by the opposite two edges of the main body segment Vertically extending and extending, and the two supporting segments are supported by the fixing segments, each of the supporting segments comprising a "convex" shaped body and two side wings integrally connected with the "convex" shaped body, each of the The two side flaps of the support section are bent at an angle toward the outer side of the fastening section; the elastic section is located between the two support sections and the distance from the top of the elastic section to the fastening section is greater than the distance of the two support sections a distance from the top to the fastening section; the elastic section is for supporting the pressing member, and the elastic section is elastically deformed and contracted when the pressing member is pressed, when the pressing member is further pressed The amount of deformation of the elastic segment is further increased to cause the The pressure member is supported directly on "convex" shaped body and two supporting portions of the flaps. The shrapnel structure of claim 1, wherein the fixing section is formed with two protrusions, and the protrusion supports the two supporting sections. The shrapnel structure of claim 1, wherein the fastening section is formed with a fixing groove through which the elastic structure is fixed to other electrical components. The shrapnel structure of claim 1, wherein the support section has a substantially square metal sheet structure. The shrapnel structure of claim 1, wherein the main body segment has a square body and a bending edge extending along four sides of the square body, the main body The body segment is connected to the fastening section, the two support sections and the elastic section through the bending edge. The shrapnel structure of claim 1, wherein the elastic segment comprises a first connecting segment, a second connecting segment, a resisting segment, a tailing segment and a plurality of bent segments, the first connecting segment The second connecting section and the abutting section are connected by a curved arc of the bent section, and have a substantially "ㄈ"-shaped structure. The shrapnel structure of claim 6, wherein one end of the first connecting section is connected to the main body section by a bending edge, and the other end of the first connecting section is connected to one end of the second connecting section by a bent joint. An array type elastic device formed by bending a metal sheet for supporting a pressing member, wherein the improvement comprises: a plurality of body segments, a plurality of fastening segments, a plurality of elastic segments and a plurality of support segments, each of a fastening segment and each of the elastic segments are formed by vertically bending a corresponding two edges of the main body segment toward a surface of the main body segment, wherein each of the two support segments is separated by a main body segment The other two opposite edges are formed by vertically bending the surface of the main body segment, and the two supporting segments are supported by a corresponding fastening segment, each of the supporting segments comprising a "convex" shaped body and Two side flaps integrally connected with the "convex" body, each of the two side wings of the support section being bent at an angle to an outer side of the fastening section; each of the elastic sections being located at each of the two support sections And the distance from the top of the elastic segment to the fastening segment is greater than the distance from the top of the two support segments to the fastening segment, and each two adjacent body segments are disposed in parallel and the first surface of each adjacent two bodies Relatively disposed; the plurality of elastic segments are used to support the a pressing member, wherein the plurality of elastic segments undergo elastic deformation and contraction when the pressing member is pressed, and when the pressing member is further pressed, the deformation amount of the plurality of elastic segments is further increased to cause the pressing The pressing member is directly supported on the "convex" body and the side wings of the plurality of support segments. The array type elastic device of claim 8, wherein each of the fastening sections is formed with two protrusions, and the two protrusions support the corresponding two support sections. The array type shrapnel device of claim 8, wherein each of the fastening segments abuts each other to form a strip-shaped plate structure. The array type elastic device of claim 8, wherein each of the fastening sections is formed with a fixing groove through which the array type elastic device is fixed to other electrical components. The array type shrapnel device of claim 8, wherein each of the support segments has a substantially square metal sheet structure. The array type elastic device of claim 8, wherein the main body segment has a square body and a bending edge extending along four sides of the square body, and the main body segment is fixed to the fixing by the bending edge The segments, the two support segments and the elastic segments are connected in a transitional manner. The array type elastic device of claim 8, wherein each of the elastic segments comprises a first connecting segment, a second connecting segment, a resisting segment, a tailing segment and a plurality of bent segments, The first connecting section, the second connecting section and a resisting section are connected by a curved arc of the bent section, and have a substantially "ㄈ"-shaped structure. The array type elastic device of claim 14, wherein one end of the first connecting section is connected to the main body section by a bending edge, and the other end of the first connecting section passes through the bent connecting section and one end of the second connecting section. connection.