CN219124598U

CN219124598U - PCB (printed circuit board) with back drill

Info

Publication number: CN219124598U
Application number: CN202223339123.7U
Authority: CN
Inventors: 王东府; 张志强; 赵俊
Original assignee: Shenzhen Jinshengda Electronics & Technology Co ltd
Current assignee: Shenzhen Jinshengda Electronics & Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-02
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a PCB (printed circuit board) with a back drill, which comprises a mounting frame, wherein mounting seats are fixedly arranged at the lower part of the left end and the lower part of the right end of the mounting frame, a group of mounting holes penetrating up and down are formed in the front part of the upper end and the rear part of the upper end of the mounting seats, the two groups of mounting holes are symmetrically distributed front and back, each group of mounting holes are two, a main body plate is jointly arranged between the mounting frames, limiting frames are respectively arranged at the left side and the rear side between the mounting frames, cooling fins are fixedly arranged in the upper end of the mounting frame, and a cooling assembly is fixedly arranged in the middle of the rear end of the fixing plate. According to the PCB with the back drill, the heat dissipation assembly is arranged, the motor drives the rotating column, the rotating column drives the fan blades, wind power is sucked into the fixing frame from the air inlet, and under the action of the motor driving the rotating column and the fan blades, the wind power is conveyed to the heat dissipation fins, and under the interaction of the heat dissipation fins and the wind power, the heat dissipation effect of the main body board can be improved.

Description

PCB (printed circuit board) with back drill

Technical Field

The utility model relates to the technical field of PCB (printed circuit board), in particular to a PCB with a back drill.

Background

PCB (Printed Circuit Board) the Chinese name printed circuit board, also called printed circuit board, is an important electronic component, is a support for electronic components, and is a carrier for electrically interconnecting electronic components. It is called a "printed" circuit board because it is made using electronic printing.

The prior art (patent number: CN 205622980U) discloses a PCB with a back drill, which comprises a plurality of layers of core plates laminated in sequence, wherein a plurality of groups of through holes penetrating through the plurality of layers of core plates are arranged in the PCB, and each through hole comprises a metalized hole with a metalized inner wall and a back drill communicated with the metalized hole and with a non-metalized inner wall. The utility model has the beneficial effects that: through being provided with the multiunit through-hole that runs through multilayer core in the PCB plate, and each through-hole includes the metallized hole of inner wall metallization and with the back drilling of metallized hole intercommunication and inner wall non-metallization, the existence of back drilling makes the length of metallized hole shorten, has reduced its influence to signal transmission.

The existing PCB with the back drill has the following defects that the installation mode of the existing PCB is fixed through bolts, and the phenomenon of sliding wires can occur due to long-time use, so that the installation and the fixation of the PCB are affected, meanwhile, the existing PCB can generate a large amount of heat during operation, and the heat dissipation effect can be affected only by virtue of the heat dissipation grooves, so that a novel PCB with the back drill is provided.

Disclosure of Invention

The utility model mainly aims to provide a PCB with a back drill, which can effectively solve the problem that the PCB is convenient to dissipate heat and the problem that the PCB is convenient to install and fix.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a take PCB plate that back of body bored, includes the mounting bracket, the equal fixed mounting of mounting bracket left end lower part and right-hand member lower part has the mount pad, two a set of mounting hole of punching through from top to bottom has all been seted up to mount pad upper end front portion and upper end rear portion, two sets of the mounting hole is front and back symmetric distribution and every group sets up to two, be provided with the main part board jointly between the mounting bracket, left side and between the mounting bracket all are provided with the spacing, mounting bracket upper end inside fixed mounting has the fin, a set of back of body drilling body of punching through from top to bottom has all been seted up to main part board upper end left part and upper end right part, mounting bracket upper end rear portion fixed mounting has the fixed plate, fixed plate rear end middle part fixed mounting has radiating component.

Preferably, the standing grooves are formed in the left side and the right side between the mounting frames, a group of clamping grooves are formed in the front side and the rear side between the two standing grooves, a group of limiting pins are movably inserted and connected in the left side and the right side inside the mounting frames, and limiting holes are formed in the front portion and the rear portion of the right end of the limiting frame.

Preferably, the limiting frame is located in the clamping groove, the limiting pins penetrate through the mounting frame and are movably inserted into the limiting holes, and the two groups of the clamping grooves are symmetrically distributed in the front-back direction, and each group of the clamping grooves is two.

Preferably, the heat dissipation assembly comprises a fixing frame, a plurality of front and back through air inlets are formed in the rear end of the fixing frame, a motor is fixedly connected inside the fixing frame, a rotating column is fixedly connected to the output end of the motor, fan blades are fixedly connected to the front end of the rotating column, through holes are formed in the rear end of the fixing plate, and the fixing frame is fixedly connected to the through holes.

Preferably, a plurality of the air inlets are distributed in an annular array.

Preferably, the left part of fin lower extreme and the right part of lower extreme all are provided with the piece, two the mounting groove has all been seted up to left side between the piece and the right side between, the fin is located the mounting groove, piece fixed connection is on the mounting bracket.

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

1. according to the utility model, the mounting frame and the limiting frame are arranged, so that the main body plate is convenient to mount and fix, when the mounting frame is used, firstly, the upper end of the mounting frame is provided with the placing groove and the clamping groove, the main body plate is placed in the placing groove, meanwhile, the limiting frame is clamped in the clamping groove, the limiting pin penetrates through the mounting frame and is movably inserted into the limiting hole, the main body plate is limited by the limiting frame, and then the limiting frame is reinforced by the limiting pin, so that the main body plate is convenient to mount and fix, and the stability of the main body plate is improved;

2. according to the utility model, the heat dissipation effect of the main body plate can be improved by arranging the heat dissipation assembly, when the heat generated by the main body plate needs to be processed in use, the motor drives the rotating column, the rotating column drives the fan blade, so that wind power is sucked into the fixing frame from the air inlet hole, the motor drives the rotating column and the fan blade to convey the wind power to the heat dissipation plate, and the heat dissipation effect of the main body plate can be improved under the interaction of the heat dissipation plate and the wind power.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a PCB panel with a back drill according to the present utility model;

fig. 2 is a schematic diagram of the whole structure of a limiting frame of a PCB panel with a back drill according to the present utility model;

fig. 3 is a schematic diagram of the overall structure of a heat dissipating assembly of a PCB board with a back drill according to the present utility model;

fig. 4 is a schematic diagram of the overall structure of a heat sink with a back-drilled PCB board according to the present utility model.

In the figure: 1. a mounting frame; 2. a mounting base; 3. a mounting hole; 4. a main body plate; 5. a limiting frame; 6. a back drilling body; 7. a fixing plate; 8. a heat dissipation assembly; 9. a heat sink; 51. a limiting hole; 52. a limiting pin; 53. a clamping groove; 54. a placement groove; 71. perforating; 81. a fixing frame; 82. an air inlet hole; 83. a motor; 84. rotating the column; 85. a fan blade; 91. a support block; 92. and a mounting groove.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-4, a PCB panel with a back drill comprises a mounting frame 1, wherein the lower part of the left end and the lower part of the right end of the mounting frame 1 are fixedly provided with mounting seats 2, the front parts of the upper ends and the rear parts of the upper ends of the two mounting seats 2 are respectively provided with a group of mounting holes 3 which are vertically penetrated, the two groups of mounting holes 3 are symmetrically distributed front and back, each group of mounting holes are two, a main body plate 4 is jointly arranged between the mounting frames 1, the left side and the rear side between the mounting frames 1 are respectively provided with a limiting frame 5, the inside of the upper end of the mounting frame 1 is fixedly provided with a radiating fin 9, the left part and the right part of the upper end of the main body plate 4 are respectively provided with a group of back drilling bodies 6 which are vertically penetrated, the rear parts of the upper end of the mounting frame 1 are fixedly provided with a fixing plate 7, and the middle part of the rear end of the fixing plate 7 is fixedly provided with a radiating component 8; the left side and the right side between the mounting frames 1 are respectively provided with a placement groove 54, the front side and the rear side between the two placement grooves 54 are respectively provided with a group of clamping grooves 53, the left side and the right side inside the mounting frames 1 are respectively and movably connected with a group of limiting pins 52 in a penetrating way, and the front part and the rear part of the right end of each limiting frame 5 are respectively provided with a limiting hole 51; the limiting frame 5 is positioned in the clamping grooves 53, the limiting pins 52 penetrate through the mounting frame 1 and are movably connected in the limiting holes 51 in a penetrating way, and the two groups of clamping grooves 53 are symmetrically distributed front and back and are arranged in two groups; firstly, a placing groove 54 and a clamping groove 53 are formed in the upper end of the mounting frame 1, the main body plate 4 is placed in the placing groove 54, meanwhile, the limiting frame 5 is clamped in the clamping groove 53, the limiting pin 52 penetrates through the mounting frame 1 and is movably inserted into the limiting hole 51, the main body plate 4 is limited through the limiting frame 5, and then the limiting frame 5 is reinforced by the limiting pin 52, so that the main body plate 4 is convenient to install and fix, and the stability of the main body plate 4 is improved.

The heat dissipation assembly 8 comprises a fixing frame 81, a plurality of front-back through air inlets 82 are formed in the rear end of the fixing frame 81, a motor 83 is fixedly connected inside the fixing frame 81, a rotating column 84 is fixedly connected to the output end of the motor 83, fan blades 85 are fixedly connected to the front end of the rotating column 84, through holes 71 which are formed in the rear end of the fixing plate 7 and are penetrated in the front-back direction are formed in the rear end of the fixing plate 7, and the fixing frame 81 is fixedly connected in the through holes 71; the plurality of air inlet holes 82 are distributed in an annular array; the left part and the right part of the lower end of the radiating fin 9 are respectively provided with a supporting block 91, mounting grooves 92 are respectively formed in the left side and the right side between the two supporting blocks 91, the radiating fin 9 is positioned in the mounting grooves 92, and the supporting blocks 91 are fixedly connected to the mounting frame 1; the motor 83 drives the rotating column 84, and then the rotating column 84 drives the fan blades 85, so that wind force is sucked into the fixing frame 81 from the air inlet 82, and under the action of the motor 83 driving the rotating column 84 and the fan blades 85, the wind force is conveyed to the cooling fins 9, and under the interaction of the cooling fins 9 and the wind force, the cooling effect of the main body plate 4 can be improved.

It should be noted that, the utility model is a PCB board with back drill, through setting up the mounting frame 1 and spacing 5, make the body board 4 easy to install and fix, when using, offer the standing groove 54 and draw-in groove 53 on the upper end of the mounting frame 1 at first, and place the body board 4 in the standing groove 54, meanwhile, joint the spacing 5 in the draw-in groove 53, penetrate the mounting frame 1 and connect in spacing hole 51 through the spacing pin 52 movably, limit the body board 4 through the spacing 5, then strengthen the spacing 5 by the spacing pin 52, make the body board 4 easy to install and fix, thus raise the stability of the body board 4; through setting up radiator unit 8, can improve the radiating effect of main part board 4, when using, when the heat that main part board 4 produced needs to handle, drive through motor 83 and rotate post 84, drive flabellum 85 by rotating post 84 again, make wind-force inhale in the mount 81 from inlet port 82 to under the effect of motor 83 drive rotate post 84 and flabellum 85, make wind-force carry to fin 9 on, and under fin 9 and wind-force interact, can improve the radiating effect of main part board 4.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a take PCB plate that back of body bored, includes mounting bracket (1), its characterized in that: the mounting frame is characterized in that mounting seats (2) are fixedly mounted on the lower portion of the left end and the lower portion of the right end of the mounting frame (1), a group of mounting holes (3) penetrating up and down are formed in the front portion of the upper end of the mounting seat (2) and the rear portion of the upper end of the mounting seat, the mounting holes (3) are distributed symmetrically around and are arranged to be two in each group, a main body plate (4) is jointly arranged between the mounting frames (1), limiting frames (5) are fixedly mounted on the left side and the rear side between the mounting frames (1), cooling fins (9) are fixedly mounted on the upper end of the mounting frames (1), a group of back drilling bodies (6) penetrating up and down are formed in the left portion of the upper end of the main body plate (4) and the right portion of the upper end of the mounting frames (1), fixing plates (7) are fixedly mounted on the rear portion of the upper end of the mounting frames (1), and cooling assemblies (8) are fixedly mounted on the middle portions of the rear ends of the fixing plates (7).

2. The backdrilled PCB panel of claim 1, wherein: the left side and the right side between mounting bracket (1) have all been seted up standing groove (54), two between standing groove (54) front side and between the rear side have all been seted up a set of draw-in groove (53), inside left side and inside right side of mounting bracket (1) all movably alternate and are connected with a set of spacer pin (52), spacing hole (51) have all been seted up at spacing (5) right-hand member front portion and right-hand member rear portion.

3. The PCB panel with back drill of claim 2, wherein: the limiting frame (5) is located in the clamping groove (53), the limiting pins (52) penetrate through the mounting frame (1) and are movably connected in the limiting holes (51) in a penetrating mode, and two groups of the clamping grooves (53) are symmetrically distributed in the front-back mode and are arranged in two groups.

4. A PCB panel with a backdrill according to claim 3, wherein: the heat dissipation assembly (8) comprises a fixing frame (81), a plurality of front and back through air inlets (82) are formed in the rear end of the fixing frame (81), a motor (83) is fixedly connected to the inside of the fixing frame (81), a rotating column (84) is fixedly connected to the output end of the motor (83), fan blades (85) are fixedly connected to the front end of the rotating column (84), through holes (71) are formed in the rear end of the fixing plate (7), and the fixing frame (81) is fixedly connected to the inside of the through holes (71).

5. The backdrilled PCB panel of claim 4, wherein: the plurality of air inlet holes (82) are distributed in an annular array.

6. The backdrilled PCB panel of claim 5, wherein: the cooling fin (9) lower extreme left part and lower extreme right part all are provided with prop up piece (91), two prop up left side between piece (91) and all seted up mounting groove (92) between the right side, cooling fin (9) are located mounting groove (92), prop up piece (91) fixed connection on mounting bracket (1).