CN216673399U

CN216673399U - Liquid crystal polymer film flexible circuit board

Info

Publication number: CN216673399U
Application number: CN202220036595.6U
Authority: CN
Inventors: 王永兵; 王萱
Original assignee: Shenzhen Assunny Precision Circuit Scien Tech Co ltd
Current assignee: Shenzhen Assunny Precision Circuit Scien Tech Co ltd
Priority date: 2022-01-08
Filing date: 2022-01-08
Publication date: 2022-06-03
Anticipated expiration: 2032-01-08

Abstract

The utility model discloses a liquid crystal polymer film flexible circuit board, which comprises a base, wherein four corners of the lower end of the base are fixedly connected with support legs, the left part and the right part of the upper end of the base are fixedly connected with a heat dissipation device together, the left part of the lower plate wall of the heat dissipation device is fixedly connected with two fixing caps, the middle part of the upper end of the base is fixedly connected with a stabilizing device, the front part and the rear part of the upper end of the stabilizing device are connected with a connecting device together through threads, the upper end of the connecting device is movably connected with a circuit board main body, the front end and the rear end of the stabilizing device are both connected with bolts through threads, the number of the bolts is four, and the left part and the right part of the lower end of the base are both provided with a plurality of heat dissipation ports. The liquid crystal polymer film flexible circuit board provided by the utility model has the advantages that the whole device is reasonable in structural design, good in heat dissipation effect, strong in stability and good in durability, and the service life of the circuit board is prolonged.

Description

Liquid crystal polymer film flexible circuit board

Technical Field

The utility model relates to the technical field of circuit boards, in particular to a liquid crystal polymer film flexible circuit board.

Background

With the rapid development of communication equipment and technology, the production and preparation of high-performance high-frequency substrate materials become an indispensable part for developing high-frequency wireless communication, a flexible printed circuit board adopts a flexible metal-clad plate to form a single-layer or multi-layer flexible circuit board through a flexible printed circuit board (FPC) process, a circuit is formed through steps of hole turning, punching, metallized via hole passing, developing, etching and the like according to a circuit design drawing, when the multi-layer circuit board is prepared, a liquid crystal high polymer film can be directly used as a bonding layer and laminated with a metal foil to form a metal-clad plate, and a low-dielectric adhesive sheet can be used for sequentially bonding the liquid crystal high polymer film and the metal foil together, 1, in the use process of the existing liquid crystal high polymer film flexible circuit board, as the substrate mostly adopts a polyimide film as an insulating substrate of the metal-clad plate, serious layering and fracture can occur due to external collision, the protection performance is poor; 2. the existing liquid crystal polymer film flexible circuit board has poor heat dissipation effect in the use process, is easy to be accumulated by heat, causes the circuit board to be damaged due to high temperature, and reduces the service life; therefore, we propose a liquid crystal polymer film flexible circuit board.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a liquid crystal polymer film flexible circuit board which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a liquid crystal polymer film flexible circuit board, includes the base, the equal fixedly connected with stabilizer blade in lower extreme four corners of base, the common fixedly connected with heat abstractor in upper end left part and the upper end right part of base, heat abstractor's lower wallboard left part fixedly connected with locking cap, the locking cap is provided with two, the upper end middle part fixedly connected with securing device of base, the anterior and the common threaded connection in upper end rear portion of securing device's upper end have connecting device, connecting device's upper end swing joint has the circuit board main part, securing device's the equal threaded connection in front end and rear end has the bolt, the bolt is provided with four, a plurality of thermovent has all been opened to the lower extreme left part and the lower extreme right part of base.

Preferably, heat abstractor includes sunshade and driver, sunshade and fixedly connected with pivot are run through to the output of driver, a plurality of flabellum of the outer fixed surface of pivot pad, the lower extreme left part and the equal fixedly connected with a plurality of sheetmetal of lower extreme right part of sunshade, the lower extreme right part fixedly connected with bracing piece of sunshade, the bracing piece is provided with two, the bracing piece is located the right side of a plurality of sheetmetal, sunshade fixed connection is at the upper end left part of base.

Preferably, the fixing device comprises a bottom plate, the front part of the upper end of the bottom plate and the rear part of the upper end of the bottom plate are fixedly connected with fixing blocks, the middle part of the upper end of each fixing block is provided with a connecting groove, the front end and the rear end of each fixing block are provided with a screw hole, the number of the screw holes is four, and the bottom plate is fixedly connected to the middle part of the upper end of the base.

Preferably, the connecting device comprises a rubber frame, the lower end left part and the lower end right part of the rubber frame are fixedly connected with cushion blocks, the cushion blocks are four, screw holes are formed in the front end and the rear end of the rubber frame respectively, four screw holes are formed in the second screw hole, a groove is formed in the upper end of the rubber frame, and the rubber frame is movably connected to the outer side of the circuit board main body.

Preferably, a plurality of the surface of flabellum all is not with the contact of a plurality of sheetmetal, and a plurality of flabellum is located the circuit board main part directly over, two the equal fixed connection of lower terminal surface of bracing piece is in the upper end right part of base.

Preferably, the two stabilizing blocks are distributed in a front-back mirror image mode, and the position sizes of the four first screw holes are matched with the position sizes of the four bolts.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the connecting device is arranged on the whole device, the circuit board main body is placed in the groove, the outer side of the circuit board main body is tightly attached to the rubber frame, the rubber frame is made of rubber, the circuit board main body is prevented from being collided and scraped in the using process, the cushion blocks are fixedly arranged on the left part of the lower end and the right part of the lower end of the rubber frame and are used for supporting the circuit board main body, and the durability of the circuit board is improved.

2. According to the utility model, the heat dissipation device is arranged on the whole device, the output end effect of the driver is utilized to drive the plurality of fan blades on the rotating shaft to rotate, so that heat is effectively and quickly dissipated, the metal material of the metal sheet is utilized to absorb heat by matching with the plurality of metal sheets, auxiliary heat dissipation is achieved, heat accumulation of the circuit board main body is avoided, and the service life of the circuit board main body is prolonged.

Drawings

FIG. 1 is a schematic view of an overall structure of a liquid crystal polymer film flexible circuit board according to the present invention;

FIG. 2 is a schematic view of the overall structure of a heat dissipation device of a liquid crystal polymer film flexible circuit board according to the present invention;

FIG. 3 is a schematic view of the entire structure of a fixing device of a liquid crystal polymer film flexible circuit board according to the present invention;

fig. 4 is a schematic view of the overall structure of a connecting device of a liquid crystal polymer film flexible circuit board according to the present invention.

In the figure: 1. a base; 2. a support leg; 3. a heat dissipation port; 4. a bolt; 5. a connecting device; 6. a circuit board main body; 7. a heat sink; 8. a fixing cap; 9. a securing device; 71. a shutter; 72. a metal sheet; 73. a driver; 74. a rotating shaft; 75. a fan blade; 76. a support bar; 1. a base plate; 92. a stabilizing block; 93. a first screw hole; 94. connecting grooves; 51. a rubber frame; 52. a groove; 53. cushion blocks; 54. and a second screw hole.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a liquid crystal polymer film flexible circuit board, the on-line screen storage device comprises a base 1, the equal fixedly connected with stabilizer blade 2 in base 1's lower extreme four corners, the common fixedly connected with heat abstractor 7 of base 1's upper end left part and upper end right part, heat abstractor 7's lower wallboard left part fixedly connected with locking cap 8, locking cap 8 is provided with two, base 1's upper end middle part fixedly connected with securing device 9, securing device 9's the common threaded connection in upper end front portion and the upper end rear portion has connecting device 5, connecting device 5's upper end swing joint has circuit board main part 6, securing device 9's the front end and the equal threaded connection in rear end have bolt 4, bolt 4 is provided with four, base 1's lower extreme left part and lower extreme right part have all opened a plurality of thermovent 3.

In this embodiment, the heat dissipation device 7 includes a shielding plate 71 and a driver 73, an output end of the driver 73 penetrates through the shielding plate 71 and is fixedly connected with a rotating shaft 74, a plurality of fan blades 75 are fixedly connected to an outer surface of a pad of the rotating shaft 74, a plurality of metal sheets 72 are fixedly connected to a left portion of a lower end and a right portion of a lower end of the shielding plate 71, a support rod 76 is fixedly connected to a right portion of a lower end of the shielding plate 71, two support rods 76 are provided, the support rods 76 are located on right sides of the plurality of metal sheets 72, and the shielding plate 71 is fixedly connected to a left portion of an upper end of the base 1; the outer surfaces of the fan blades 75 are not in contact with the metal sheets 72, the fan blades 75 are positioned right above the circuit board main body 6, and the lower end surfaces of the two support rods 76 are fixedly connected to the right part of the upper end of the base 1; the support rod 76 is fixedly arranged at the right part of the lower end of the shielding plate 71 and is used for supporting the circuit board main body 6, and the outer surfaces of the plurality of fan blades 75 are not in contact with the plurality of metal sheets 72, so that scratch and damage to equipment are avoided.

In this embodiment, the fixing device 9 includes a bottom plate 91, the front part and the rear part of the upper end of the bottom plate 91 are fixedly connected with fixing blocks 92, the middle part of the upper end of the fixing blocks 92 is provided with connecting grooves 94, the front end and the rear end of the fixing blocks 92 are provided with first screw holes 93, the number of the first screw holes 93 is four, and the bottom plate 91 is fixedly connected to the middle part of the upper end of the base 1; the two stabilizing blocks 92 are distributed in a front-back mirror image manner, and the position sizes of the four first screw holes 93 are matched with the position sizes of the four bolts 4; no. two screw holes 54 are installed at the upper end of the stabilizing block 92 through bolts 4, so that the shaking phenomenon is avoided, and the stability is high.

In this embodiment, the connecting device 5 includes a rubber frame 51, the left part and the right part of the lower end of the rubber frame 51 are both fixedly connected with a cushion block 53, the cushion blocks 53 are four, the front end and the rear end of the rubber frame 51 are both provided with a second screw hole 54, the second screw hole 54 is provided with four screw holes, the upper end of the rubber frame 51 is provided with a groove 52, and the rubber frame 51 is movably connected to the outer side of the circuit board main body 6; the circuit board main body 6 is placed in the groove 52, the outer side of the circuit board main body is tightly attached to the rubber frame 51, and the rubber frame 51 is made of rubber, so that the circuit board main body 6 is prevented from being knocked and scratched in the using process.

It should be noted that, in the use process of the flexible circuit board of the liquid crystal polymer film, four corners of the lower end of the base 1 are fixedly provided with the support legs 2, so that the stability of the whole device is improved, the circuit board main body 6 is placed in the groove 52, the outer side of the circuit board main body is tightly attached to the rubber frame 51, the rubber frame 51 is made of rubber materials, so that the circuit board main body 6 is prevented from being scratched in the use process, the left part and the right part of the lower end of the rubber frame 51 are fixedly provided with the cushion blocks 53 for supporting the circuit board main body 6, because the position size of the second screw hole 54 and the position size of the first screw hole 93 are matched with the position size of the bolt 4, the second screw hole 54 is mounted at the upper end of the stabilizing block 92 by using the bolt 4, so that the shaking phenomenon is avoided, the stability is strong, the left end of the base 1 is fixedly provided with the shield plate 71, and the right part of the lower end of the shield plate 71 is fixedly provided with the support rod 76, strengthen the holding power of sunshade 71, when the heat of circuit board main part 6 is too high, start driver 73, utilize the output effect of driver 73, thereby drive a plurality of flabellum 75 in the pivot 74 and rotate, thereby effectively dispel the heat fast, cooperate a plurality of sheetmetal 72, utilize the metal material of sheetmetal 72 to adsorb the heat, reached complementary heat dissipation, avoid circuit board main part 6 heat to pile up, the life of circuit board main part 6 has been improved, whole device structural design is reasonable, be favorable to liquid crystal polymer film flexible circuit board's use.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a liquid crystal polymer film flexible circuit board, includes base (1), its characterized in that: the utility model discloses a heat radiator, including base (1), the equal fixedly connected with stabilizer blade in lower extreme four corners (2) of base (1), the common fixedly connected with heat abstractor (7) of upper end left part and the upper end right part of base (1), the lower wall left part fixedly connected with locking cap (8) of heat abstractor (7), locking cap (8) are provided with two, the upper end middle part fixedly connected with securing device (9) of base (1), the common threaded connection in upper end front portion and the upper end rear portion of securing device (9) has connecting device (5), the upper end swing joint of connecting device (5) has circuit board main part (6), the equal threaded connection in front end and the rear end of securing device (9) has bolt (4), bolt (4) are provided with four, a plurality of thermovent (3) have all been opened to the lower extreme left part and the lower extreme right part of base (1).

2. The liquid crystal polymer film flexible circuit board of claim 1, wherein: heat abstractor (7) include sunshade (71) and driver (73), the output of driver (73) runs through sunshade (71) and fixedly connected with pivot (74), the outer fixed surface of pivot (74) pad is connected with a plurality of flabellum (75), the lower extreme left part and the equal fixedly connected with a plurality of sheetmetal (72) in lower extreme right part of sunshade (71), the lower extreme right part fixedly connected with bracing piece (76) of sunshade (71), bracing piece (76) are provided with two, bracing piece (76) are located the right side of a plurality of sheetmetal (72), sunshade (71) fixed connection is in the upper end left part of base (1).

3. The liquid crystal polymer film flexible circuit board of claim 1, wherein: securing device (9) include bottom plate (91), the equal fixedly connected with stabilizing block (92) in upper end front portion and the upper end rear portion of bottom plate (91), connecting groove (94) have all been opened at the upper end middle part of stabilizing block (92), screw (93) have all been opened to the front end and the rear end of stabilizing block (92), four have been seted up to screw (93), bottom plate (91) fixed connection is in the upper end middle part of base (1).

4. The liquid crystal polymer film flexible circuit board of claim 1, wherein: connecting device (5) include rubber frame (51), the equal fixedly connected with cushion (53) in lower extreme left part and the lower extreme right part of rubber frame (51), cushion (53) are provided with four, No. two screw (54) have all been opened to the front end and the rear end of rubber frame (51), No. two screw (54) have been seted up four, open the upper end of rubber frame (51) has recess (52), rubber frame (51) swing joint is in the outside of circuit board main part (6).

5. The liquid crystal polymer film flexible circuit board of claim 2, wherein: the outer surface of the fan blades (75) is not in contact with the metal sheets (72), the fan blades (75) are located right above the circuit board main body (6), and the lower end faces of the support rods (76) are fixedly connected to the right portion of the upper end of the base (1).

6. The liquid crystal polymer film flexible circuit board of claim 3, wherein: the two stabilizing blocks (92) are distributed in a front-back mirror image mode, and the position sizes of the four first screw holes (93) are matched with the position sizes of the four bolts (4).