TWM463021U - Frame type thin circuit board bracket - Google Patents

Description

Frame type thin circuit board rack

The present invention relates to a frame for fixing a circuit board during baking, and more particularly to a frame type thin circuit board frame.

When a printed circuit board is produced, a plurality of layers of silver paste, copper foil and the like are printed on the board to form a desired circuit, and after printing one or more layers of materials, a baking process is required to dry the materials. .

In the prior art, when the circuit board is baked, the circuit board is placed on the board frame, and the board holder is provided with a plurality of clamps for clamping the top side of the circuit board, and the moving circuit board is moved by moving the board frame in the oven. board.

However, with the thinning of the electronic device, the thickness of the circuit board is also greatly reduced, and a thin circuit board having a thickness of 0.04 mm to 0.15 mm has appeared on the market, and the thin circuit board has a small thickness, so the weight is light, and the structural strength is small. It is also low; therefore, when the thin circuit board is baked in the oven, since the prior art plate holder only holds the top side of the thin circuit board, the thin circuit board may flutter due to factors such as the flow of hot air in the oven, etc. It may cause wrinkles and deformation of the board itself, and it is more likely to contact the adjacent boards before and after, and cause the printed materials on the two boards to be contaminated with each other.

In addition, although the manufacturer wants to add a fixture on the board to hold the bottom side or both sides of the thin circuit board, to avoid the thin circuit board fluttering; However, the thin circuit board expands due to heat during the baking process. Therefore, if the circuit board is clamped and fixed on the opposite sides, it will not be able to expand and expand freely, and wrinkles and deformation will also occur.

For a thin circuit board, slight wrinkles, deformation, and contamination of the printed material may have a certain influence on the circuit, so the above disadvantages need to be improved.

In view of the above-mentioned prior art circuit board board frame, the thin circuit board may be fluttered to cause deformation, or the shortcomings and disadvantages caused by the thermal expansion may also cause deformation. The present invention provides a frame type thin circuit board board frame. It can effectively solve the above shortcomings.

In order to achieve the above-mentioned creative purpose, the technical means adopted in the present invention is to design a frame type thin circuit board board frame, which comprises: a frame body which is rectangular; at least one fixture is arranged on the frame body, and the abutment frame The top side of the body; the two side limit members are arranged on the frame body and respectively adjacent to the lateral sides of the frame body; each side limit device is provided with one side limit groove, the side limit groove is at the upper and lower ends and the lateral direction Internal and external communication.

In the creation of the present invention, the top side of the thin circuit board is sandwiched between the clamps, and the two sides of the circuit board are respectively disposed in the side limit slots of the side limit members, because the clamps and the limit members on both sides are respectively located in the circuit. The three sides of the board, so the side limit device can effectively limit the floating of the circuit board; in addition, there are still some distance between the two sides of the circuit board and the bottom of the side limiting slot, so that even if the circuit board is thermally expanded, the circuit board can also Free extension to both sides to avoid deformation and wrinkles; this creation allows the thin circuit board to remain straight during the baking process The surface of the board is not deformed or wrinkled, and does not come into contact with adjacent boards, thereby achieving good product quality.

Further, the frame type thin circuit board board frame further includes a lower limit position device, which is disposed on the frame body and adjacent to the bottom side of the frame body; the lower limit position device is provided with a lower limit position groove, and the lower limit position The slots communicate with each other at the lateral ends and upwards. This further limits the bottom side of the board to prevent the board from fluttering.

10‧‧‧ ‧ body

11‧‧‧Pole

12‧‧‧ bottom pole

13‧‧‧ Sidebar

20‧‧‧ fixture

21‧‧‧Installation seat

22‧‧‧ Press plate

23‧‧‧Internal splint

24‧‧‧ outer splint

25‧‧‧Flexible components

30‧‧‧lower limit

31‧‧‧Installation seat

32‧‧‧ Press plate

33‧‧‧Limited bars

331‧‧‧Cladding

34‧‧‧External bars

341‧‧‧Cladding

35‧‧‧Flexible components

36‧‧‧lower slot

40‧‧‧ side limit

41‧‧‧Installation seat

42‧‧‧ Press plate

43‧‧‧Limited bars

44‧‧‧ outer limit strip

45‧‧‧Flexible components

50‧‧‧ boards

20A‧‧‧ fixture

40A‧‧‧ side limit

50A‧‧‧PCB

30C‧‧‧ Limits

33C‧‧‧Limited bars

331C‧‧‧ coating

34C‧‧‧Limited bars

341C‧‧‧ coating

36C‧‧‧ Limit slot

10D‧‧‧ frame

11D‧‧‧Pole

111D‧‧‧ long hole

112D‧‧‧ against the wall

20D‧‧‧ fixture

50D‧‧‧PCB

60D‧‧‧displacement device

61D‧‧‧ Ontology

62D‧‧‧Flexible components

63D‧‧‧Bolts

Figure 1 is a perspective view of the first embodiment of the present invention.

Figure 2 is an exploded view of most of the components of the first embodiment of the present invention.

Figure 3 is an exploded view of the jig of the first embodiment of the present invention.

Figure 4 is a side cross-sectional view of the jig of the first embodiment of the present invention.

Figure 5 is an exploded view of the lower limit of the first embodiment of the present invention.

Figure 6 is a side cross-sectional view of the lower limit member of the first embodiment of the present invention.

Figure 7 is a front elevational view of a second embodiment of the present invention.

Figure 8 is an enlarged side elevational cross-sectional view of the lower limit member of the third embodiment of the present invention.

Figure 9 is an enlarged perspective view of the displacement device of the fourth embodiment of the present invention.

Figure 10 is an exploded perspective view of the displacement device of the fourth embodiment of the present invention.

Figure 11 is an enlarged front elevational view of the displacement device of the fourth embodiment of the present invention.

Figure 12 is a schematic view showing the use of the displacement device of the fourth embodiment of the present invention Figure.

The technical means adopted by the present invention for achieving the intended purpose of creation are further explained below in conjunction with the drawings and the preferred embodiment of the present invention.

Referring to FIG. 1 and FIG. 2, the first embodiment of the frame type thin circuit board board frame of the present invention comprises a frame body 10, two clamps 20, a lower limit position member 30 and two side limit members 40.

The frame body 10 includes a top rod 11, a bottom rod 12 and two side rods 13. The two side rods 13 are connected between the top rod 11 and the bottom rod 12. The top rod 11, the bottom rod 12 and the two side rods 13 are formed. A rectangle.

Referring to FIG. 2 to FIG. 4 , the two clamps 20 are disposed on the top pole 11 of the frame body 10 and are respectively located at two corners on the top side of the frame body 10 . Each clamp 20 includes a mounting seat 21 . a pressing plate 22, an inner clamping plate 23, an outer clamping plate 24 and an elastic member 25; the mounting seat 21 is fixed on the top rod 11 of the frame body 10; the pressing plate 22 is pivotally mounted on the mounting seat 21; the inner clamping plate 23 is fixed on the mounting seat 21; the outer clamping plate 24 is fixed on the inner side of the pressing plate 22, the inner clamping plate 23 and the outer clamping plate 24 can be oppositely clamped; the elastic member 25 is disposed on the mounting seat 21 and abuts against the pressing The plate 22 and the outer plate 24 are rotated toward the inner plate 23 by the pressing plate 22.

Referring to FIG. 2, FIG. 5 and FIG. 6, the lower limit position 30 is disposed on the bottom rod 12 of the frame body 10; the lower limit position 30 includes two mounting seats 31, two pressing plates 32, and an inner limit. a strip 33, an outer limiting strip 34 and two elastic elements 35; the two mounting seats 31 are fixed on the bottom rod 12 of the frame body 10, and are respectively located at two corners on the bottom side of the frame body 10; the two pressing plates 32 The inner limiting strips 33 are fixed on the two mounting seats 31; the outer limiting strips 34 are fixed on the two pressing plates 32, and the two limiting strips 33, 34 are opposite to each other. A recess is formed in the recess, and the two recesses form a lower limit slot 36. The lower limit slot 36 is externally communicated at both ends and upwardly; the two limiting strips 33 and 34 are covered with a covering layer 331, 341. , 331, 341 having a cladding layer of low coefficient of friction, in the present embodiment, the cladding layer 331, 341 made of PTFE, i.e., DuPont's Teflon ^® production, but not For example, the two elastic members 35 are respectively disposed on the two mounting seats 31 and respectively abut against the two pressing plates 32, and the outer limiting strips 34 are rotated toward the inner limiting strips 33 through the pressing plates 32.

Referring to FIG. 1 and FIG. 2 , the two side limiting devices 40 are respectively disposed on the rods 13 on the two sides of the frame body 10 ; each side limiting device 40 includes a mounting seat 41 , a pressing plate 42 , and a The inner limiting strip 43, the outer limiting strip 44 and an elastic element 45; the mounting seat 41 is fixed to the center of the corresponding side rod 13 of the frame body 10; the pressing plate 42 is pivotally mounted on the mounting seat 41; The inner limiting strip 43 is fixed on the mounting seat 41; the outer limiting strip 44 is fixed on the pressing plate 42, and a recess is formed on the opposite sides of the two limiting strips 43 and 44, and the two recesses are formed. One side limiting groove, the side limiting groove is open to the outside at the upper and lower ends and laterally inward; the two limiting strips 43 and 44 are covered with a coating layer, and the coating layer has a very low friction coefficient. embodiment, the material of the cladding layer of polytetrafluoroethylene, i.e., DuPont's Teflon ^® produced by, but not limited to; an elastic member 45 disposed on the mounting base 41, and abuts against the pressing plate 42, the outer limiting strip 44 is rotated toward the inner limiting strip 43 by the pressing plate 42.

Referring to FIG. 1 , FIG. 4 and FIG. 6 , when the present invention is used, the top side of the thin circuit board 50 is clamped and fixed between the inner clamping plate 23 and the outer clamping plate 24 of the two clamps 20 , and both sides of the thin circuit board 50 . They are respectively disposed in the side limiting slots of the side limiting members 40, and the bottom side of the thin circuit board 50 is disposed under the bottom. The lower limit slot 36 of the position 30 is used to effectively prevent the circuit board 50 from fluttering; in addition, since the thickness of the thin circuit board 50 is much smaller than the width of the side limiting slot and the lower limit slot 36, and the bottom of the circuit board 50 There is still a distance between the side and the bottom of the groove of the lower limit groove, and the two sides of the circuit board 50 are separated from the bottom of the groove of the two side limit grooves 36, so that even if the circuit board 50 is thermally expanded, the circuit board 50 can also be lowered. And laterally freely extended to avoid deformation and wrinkles.

The present invention thereby allows the thin circuit board 50 to maintain a flat surface of the board during the baking process without being deformed or wrinkled, and not in contact with an adjacent circuit board, thereby obtaining good product quality.

When the thin circuit board 50 is to be removed, only the pressing plate 22 of the clamp 20 is required to separate the inner clamping plate 23 and the outer clamping plate 24 without the circuit board 50 being inserted; likewise, pressing the limiting members 30, 40 The pressing plates 32, 42 can rotate the outer limiting strips 34, 44 forward, and the circuit board 50 can be moved forward.

Referring to FIG. 7 , the following is a second embodiment of the present invention, which is substantially the same as the first embodiment, but does not have a lower limit device; the second embodiment still passes through the clamp 20A and the side limit members 40A. The three sides of the thin circuit board 50A are restrained, so that the same effects as the first embodiment can still be achieved.

Referring to FIG. 8 , the following is a third embodiment of the present invention, which is substantially the same as the first embodiment, but the covering layers 331C and 341C of the limiting strips 33C and 34C of the limiting members 30C are not tight. Adhered to the outer wall surface of the limiting strips 33C, 34C, wherein the covering layers 331C, 341C correspond to The gap between the inner wall surfaces of the limiting slots 36C has a gap, and the covering layers 331C, 341C of the two limiting strips 33C, 34C are arranged in a V shape on the corresponding limiting slots 36C; the third embodiment can also The same effects as the first embodiment are achieved.

Referring to FIG. 9 to FIG. 11 , the following is a fourth embodiment of the present creation, which is substantially the same as the first embodiment, but with the following differences:

The ejector 11D of the frame body 10D has a lateral long hole 111D, and the back surface of the ejector pin 11D protrudes from the abutting wall 112D, and the two abutting walls 112D are respectively located at lateral sides of the long hole 111D.

Further comprising a displacement device 60D, the displacement device 60D includes a body 61D and two elastic members 62D; the body 61D is movably disposed on the plunger 11D; the inner ends of the two elastic members 62D abut against the two ends of the body 61D, respectively, and The outer ends of the two elastic members 62D respectively abut against the abutting walls 112D of the ejector 11D; the two bolts 63D extend through the long holes 111D of the body 61D and the ejector 11D, and are locked to one of the clamps 20D, thereby The jig 20D can move laterally with respect to the jack 11D along with the body 61D.

Referring to FIG. 11 and FIG. 12, when the thin circuit board 50D is laterally expanded by heat, the side of the circuit board 50D and the body 61D of the displacement device 60D can be laterally moved relative to the frame body 10D. Thereby, it is possible to effectively prevent the circuit board 50D from being wrinkled and deformed due to the inability to laterally expand and expand.

Further, at this time, the two elastic members 62D located on both sides of the body 61D are respectively compressed and stretched, whereby when the temperature is lowered, the two elastic members 62 push the body 61D and its jig 20D back with the original circuit board 50D. In situ.

The above description is only a preferred embodiment of the present invention, and does not impose any form limitation on the present invention. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present creation, and has any technical field. A person skilled in the art can make some modifications or modifications to equivalent embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention. The technical essence of the creation Any simple modification, equivalent change and modification of the above embodiments are still within the scope of the technical solution of the present invention.

10‧‧‧ ‧ body

11‧‧‧Pole

12‧‧‧ bottom pole

13‧‧‧ Sidebar

20‧‧‧ fixture

21‧‧‧Installation seat

22‧‧‧ Press plate

23‧‧‧Internal splint

24‧‧‧ outer splint

25‧‧‧Flexible components

30‧‧‧lower limit

31‧‧‧Installation seat

32‧‧‧ Press plate

33‧‧‧Limited bars

34‧‧‧External bars

40‧‧‧ side limit

41‧‧‧Installation seat

42‧‧‧ Press plate

43‧‧‧Limited bars

44‧‧‧ outer limit strip

45‧‧‧Flexible components

50‧‧‧ boards

Claims (18)

A frame type thin circuit board board frame comprises: a frame body which is rectangular; at least one clamp is arranged on the frame body and adjacent to the top side of the frame body; and the two side limit members are arranged on the frame body, And respectively adjacent to the lateral sides of the frame body; each side limiting device is provided with one side limiting groove, and the side limiting groove is open to the outside at the upper and lower ends and laterally inward. The frame type thin circuit board board frame according to claim 1, further comprising a lower limit position device disposed on the frame body and adjacent to the bottom side of the frame body; the lower limit position device is provided with a lower limit position groove, and the lower limit position The slots communicate with each other at the lateral ends and upwards. The frame-type thin circuit board rack of claim 1 or 2, wherein each of the limiting devices comprises at least one mounting seat, an inner limiting strip, an outer limiting strip and at least one elastic component; The mounting seat is fixed on the frame body; the inner limiting strip is fixed on the mounting seat of the limiting device; the outer limiting strip is rotatably disposed on the mounting seat of the limiting device, the inner limiting strip and The outer limiting strip forms the above-mentioned limiting slot; the elastic component of the limiting device is disposed on the corresponding mounting seat of the limiting device, and the outer limiting strip is rotated toward the inner limiting strip. The frame-type thin circuit board rack of claim 3, wherein each of the limiting devices further comprises at least one pressing plate pivotally disposed on a corresponding mounting seat of the limiting device, and the external limiting position is fixed The pressing plate of the limiting device abuts against the corresponding elastic element of the limiting device. The frame type thin circuit board board frame according to claim 3, wherein the outer limiting strip and the inner limiting strip of each of the limiting members are covered with a coating layer with a low friction coefficient. The frame type thin circuit board board frame according to claim 4, wherein the outer limiting strip and the inner limiting strip of each of the limiting members are coated with a coating layer with a low friction coefficient. The frame type thin circuit board board frame according to claim 5, wherein the covering layer of each of the limiting strips has a gap between the inner wall surface of the corresponding limiting groove and each limit The cladding layers of the two limiting strips are arranged in a V shape on the corresponding limiting slots. The frame type thin circuit board board frame according to claim 6, wherein the covering layer of each of the limiting strips has a gap with the inner wall surface of the corresponding limiting slot, and each limit The cladding layers of the two limiting strips are arranged in a V shape on the corresponding limiting slots. The frame type thin circuit board board frame according to claim 1 or 2, wherein each of the clamps comprises a mounting seat, an inner clamping plate, an outer clamping plate and an elastic component; the mounting seat of the clamping fixture is fixed on the frame body; The inner clamping plate is fixed on the mounting seat of the clamp; the outer clamping plate is rotatably disposed on the mounting seat of the clamping device, and the inner clamping plate and the outer clamping plate are relatively clamped; the elastic component of the clamping device is disposed on the mounting seat of the clamping device, and The outer splint is rotated toward the inner splint. The frame type thin circuit board board frame according to claim 8, wherein each of the clamps comprises a mounting seat, an inner clamping plate, an outer clamping plate and an elastic component; the mounting seat of the clamping fixture is fixed on the frame body; the inner clamping plate The utility model is fixed on the mounting seat of the clamp; the outer clamp plate is rotatably disposed on the mounting seat of the clamp, and the inner clamp plate and the outer clamp plate are relatively clamped; the elastic component of the clamp is arranged on the mounting seat of the clamp, and the outer clamp is externally The splint rotates toward the inner splint. The frame type thin circuit board board frame according to claim 9, wherein each of the clamps comprises a pressing plate which is pivotally mounted on the mounting seat of the jig and is fixed The outer splint, the pressing plate of the clamp abuts against the elastic element of the clamp. The frame type thin circuit board board frame according to claim 10, wherein each of the clamps comprises a pressing plate pivotally mounted on the mounting seat of the jig, and the outer splint is fixed, and the pressing plate of the jig abuts against the elasticity of the jig element. A frame type thin circuit board board frame according to claim 1 or 2, wherein there are two jigs, and the two jigs are spaced apart. The frame type thin circuit board rack of claim 12, wherein there are two clamps, and the two clamps are spaced apart. The frame type thin circuit board rack according to claim 1 or 2, wherein the frame body comprises a top rod, a bottom rod and two side rods, and the two side rods are connected between the top rod and the bottom rod, the top rod and the bottom rod. The rod and the side bars form a rectangle. The frame type thin circuit board board frame according to claim 14, wherein the frame body comprises a top rod, a bottom rod and two side rods, and the two side rods are connected between the top rod and the bottom rod, the top rod and the bottom rod and The bars on both sides form a rectangle. The frame type thin circuit board rack according to claim 1 or 2, further comprising: a displacement device comprising: a body and at least one elastic member; the body is movably disposed on the frame body; the elasticity of the displacement device The two ends of the component respectively abut against the inner wall surface of the body and the frame body; and two clamps are included, wherein one clamp is fixed on the body of the displacement device. The frame type thin circuit board board frame of claim 16, further comprising: a displacement device comprising: a body and at least one elastic member; the body is movably disposed on the frame body; and the elastic component of the displacement device The two ends respectively abut against the inner wall surface of the body and the frame body; and two clamps are included, wherein one clamp is fixed on the body of the displacement device.