CN214800518U

CN214800518U - Double-sided blind hole multilayer circuit board

Info

Publication number: CN214800518U
Application number: CN202121369861.9U
Authority: CN
Inventors: 王运虎; 杜永宏; 鲁楠; 邢广林; 陈尧; 郑桥伦
Original assignee: Hangzhou Pengrun Electronics Co ltd
Current assignee: Hangzhou Pengrun Electronics Co ltd
Priority date: 2021-06-19
Filing date: 2021-06-19
Publication date: 2021-11-19
Anticipated expiration: 2031-06-19

Abstract

The application relates to a two-sided blind hole multilayer circuit board, it includes the circuit board, and the circuit board upper surface is provided with the radiator unit who is used for improving circuit board heat dispersion, is provided with the joint subassembly that is used for connecting radiator unit and circuit board between radiator unit and the circuit board, and this application has the effect that improves circuit board work efficiency.

Description

Double-sided blind hole multilayer circuit board

Technical Field

The application relates to the technical field of circuit boards, in particular to a double-sided blind hole multilayer circuit board.

Background

With the development of the technology level, the application range of the circuit board is gradually expanded. The circuit board is used as a carrier for electric connection between electronic components, the design of the circuit board is mainly a layout design, and the circuit board has the main advantages of reducing errors of wiring and assembly; the circuit board is divided into a single-layer board, a double-layer board and a multi-layer circuit board according to the number of layers.

The known multilayer circuit boards comprise at least three conductive layers, two of which are on the outer surface and the remaining one is incorporated in an insulating board, the electrical connections between which are usually made by means of wires passing through-holes and blind-holes in the cross-section of the circuit board.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the circuit board conducting layer can give off a large amount of heat when electrically conductive, the heat of giving off can make the circuit board temperature rise simultaneously, and electronic components's work receives the temperature influence great, therefore the circuit board temperature rise can influence electronic components's normal use, and then leads to circuit board work efficiency to reduce.

SUMMERY OF THE UTILITY MODEL

In order to improve the work efficiency of circuit board, this application provides a two-sided blind hole multilayer circuit board.

The application provides a two-sided blind hole multilayer circuit board adopts following technical scheme: the radiating assembly comprises a circuit board, wherein the upper surface of the circuit board is provided with a radiating assembly used for improving the radiating performance of the circuit board, and a clamping assembly used for connecting the radiating assembly and the circuit board is arranged between the radiating assembly and the circuit board.

Through adopting above-mentioned technical scheme, when the circuit board during operation, the joint subassembly is used for fixing circuit board and radiator unit, has improved radiator unit's stability in use, and radiator unit can accelerate the heat that produces and external exchange rate in the electronic components working process, has reduced the temperature of circuit board in the use, has guaranteed electronic components's normal work, and then has improved the work efficiency of circuit board.

Optionally, the heat dissipation assembly comprises a heat dissipation fan and a fixing cover, the fixing cover is of a cylindrical structure with a closed top end, and the bottom end of the fixing cover is connected with the upper surface of the circuit board; the top of the fixed cover is provided with a fan placing hole, the heat dissipation fan is positioned in the fan placing hole, and the heat dissipation fan is fixedly connected with the fixed cover; the circumferential side wall of the fixed cover is provided with a vent hole.

Through adopting above-mentioned technical scheme, when the circuit board during operation, start the heat dissipation fan, the heat dissipation fan outwards bleeds, and the air circulation of being convenient for of air vent, fixed cover and circuit board upper surface cooperation are used, form the space of being convenient for bleed, and the heat dissipation fan of being convenient for outwards bleeds, and then has promoted the heat exchange between circuit board and the outside air, has reduced the circuit board and has been service temperature, has guaranteed electronic components's normal work, and then has improved the work efficiency of circuit board.

Optionally, the clamping assembly comprises a support column, an insertion block, a clamping block and a clamping spring, one end of the support column is fixedly connected with the bottom end of the fixed cover, and the other end of the support column is fixedly connected with the insertion block; the upper surface of the circuit board is provided with an insertion groove, the support column and the insertion block are inserted into the insertion groove in a sliding manner, the circuit board is provided with a sliding groove, the sliding groove is communicated with the insertion groove, and the insertion block is inserted into the sliding groove in a sliding manner; one end of the insertion block, which is far away from the support column, is provided with a telescopic groove, the clamping spring is positioned in the telescopic groove, one end of the clamping spring is fixedly connected with the insertion block, the other end of the clamping spring is fixedly connected with the clamping block, the circuit board is provided with a clamping groove, and the clamping block is slidably inserted in the telescopic groove and the clamping groove; an unlocking component is arranged between the clamping block and the circuit board.

Through adopting the above technical scheme, during the installation radiator unit, operating personnel need extrude the joint piece, the joint piece drives the shrink of joint spring, arrange flexible inslot in completely until the joint piece, set up the fixed cover of direction slip along the spout this moment, fixed cover drives heat dissipation fan and support column, the support column drives the grafting piece, the grafting piece drives joint spring and joint piece, communicate with flexible groove until joint groove, the joint spring resets this moment, the joint piece slides and pegs graft in the joint inslot, fix radiator unit and circuit board, radiator unit's stability in use has been improved.

Optionally, the clamping block is away from the side wall of the clamping spring, and is gradually inclined to one side close to the clamping spring from one end close to the supporting column to one end far away from the supporting column.

Through adopting above-mentioned technical scheme, the inclined plane structure of joint piece for operating personnel extrudees the joint piece and provides the direction, and the operating personnel of being convenient for slides fixed cover, has improved the convenience in use of joint subassembly.

Optionally, the circumferential side wall of the fixed cover is provided with an unlocking groove, the circuit board is provided with an unlocking hole, and the unlocking hole is communicated with the unlocking groove and the clamping groove; the unblock subassembly includes extrusion plate, spliced pole and presses the clamp plate, and the spliced pole slides and pegs graft in the unblock downthehole, and spliced pole fixed connection extrusion plate and press the clamp plate, and the extrusion plate slides and pegs graft in the joint inslot, presses the clamp plate to slide and pegs graft in the unblock inslot.

Through adopting above-mentioned technical scheme, when radiator unit is dismantled to needs, only need the operator to press and move the press panel, the press panel drives the spliced pole, the spliced pole drives the extruded sheet, extruded sheet extrusion joint piece, joint piece compression joint spring, arrange the flexible inslot in completely until the joint piece, the fixed cover that slides this moment, fixed cover drives the insertion block roll-off spout, when the insertion groove is arranged in completely to support column and insertion block, radiator unit's dismantlement has been accomplished to the roll-off insertion groove that makes progress, the radiator unit's of being convenient for change, radiator unit's convenience in use has been improved.

Optionally, a return spring is arranged between the pressing plate and the circuit board, one end of the return spring is fixedly connected with the lower surface of the pressing plate, and the other end of the return spring is fixedly connected with the upper surface of the circuit board.

Through adopting above-mentioned technical scheme, when radiator unit was dismantled to needs, the pressure was moved and is pressed the pressure board, presses pressure board extrusion reset spring, until behind joint piece roll-off joint groove, reset spring drove the stripper plate automatic re-setting, improves the convenience in use of delocking subassembly.

Optionally, the circumferential side wall of the fixed cover is provided with a dustproof assembly, the dustproof assembly comprises a fixed frame and a protective net, the fixed frame is of an annular plate-shaped structure, the protective net is fixedly connected with the fixed frame, the protective net cover is arranged outside the air vent, and the fixed frame is fixedly connected with the fixed cover.

Through adopting above-mentioned technical scheme, when using radiator unit to carry out the heat exchange, in dust in the outside air can enter into heat dissipation fan and circuit board, the protection network can reduce the dust that gets into heat dissipation fan and circuit board, has prolonged the life of heat dissipation fan, has improved radiator unit's stability in use for the thermal diffusivity of circuit board strengthens, and then has improved the work efficiency of circuit board.

Optionally, a connecting bolt is arranged between the fixed frame and the fixed cover, and the connecting bolt penetrates through the fixed frame and the side wall of the fixed cover and is in threaded connection with the fixed cover.

Through adopting above-mentioned technical scheme, after protection component used a period, the protection network can overstock a large amount of dusts, takes off connecting bolt this moment, and the protection network of renewal can with fixed frame, improved protection component's convenience of use, and then guaranteed radiating component's radiating effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the heat dissipation assembly and the protection assembly are matched for use, so that the heat exchange speed of the circuit board and the outside is increased, the temperature of the circuit board in the using process is reduced, the normal work of electronic components is further ensured, and the working efficiency of the circuit board is improved;

2. the reset spring is matched with the unlocking assembly for use, so that the heat dissipation assembly is convenient to disassemble and assemble, and the use convenience of the unlocking assembly is improved;

3. dustproof subassembly and connecting bolt cooperation are used for dustproof subassembly is convenient for change, has improved dustproof subassembly's convenience of use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic diagram showing a partial structure of the clamping assembly.

Description of reference numerals: 1. a circuit board; 11. inserting grooves; 12. a chute; 13. a clamping groove; 14. unlocking the hole; 2. a heat dissipating component; 21. a heat dissipation fan; 22. a fixed cover; 221. placing a fan hole; 222. a vent hole; 223. unlocking the groove; 3. a clamping assembly; 31. a support pillar; 32. an insertion block; 321. a telescopic groove; 33. a clamping block; 34. clamping a spring; 4. an unlocking assembly; 41. extruding a plate; 42. connecting columns; 43. a pressing plate; 5. a return spring; 6. a dust-proof assembly; 61. a fixing frame; 62. a protective net; 7. and connecting the bolts.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses two-sided blind hole multilayer circuit board.

Referring to fig. 1 and 2, the double-sided blind-hole multilayer circuit board comprises a circuit board 1, the circuit board 1 is in a rectangular plate-shaped structure, a heat dissipation assembly 2 for dissipating heat of the circuit board 1 is arranged on the upper surface of the circuit board 1, the heat dissipation assembly 2 comprises a heat dissipation fan 21 and a fixing cover 22, the fixing cover 22 is in a rectangular cylindrical structure with a closed top end, vent holes 222 are formed in the circumferential side wall of the fixing cover 22, and a clamping assembly 3 for connecting the fixing cover 22 and the circuit board 1 is arranged between the bottom end of the fixing cover 22 and the upper surface of the circuit board 1; the top plate of the fixing cover 22 is provided with a fan placing hole 221, the heat dissipation fan 21 is located in the fan placing hole 221, and the heat dissipation fan 21 is fixedly connected with the fixing cover 22.

Referring to fig. 1, when the circuit board 1 works, the heat dissipation fan 21 is started, and the heat dissipation fan 21 and the vent hole 222 are used in a matching manner, so that the gas flowing speed in the fixed cover 22 is accelerated, the heat exchange speed between the circuit board 1 and the outside is accelerated, the effect of cooling the circuit board 1 is achieved, the normal operation of electronic components is ensured, and the working efficiency of the circuit board 1 is further improved.

Referring to fig. 1 and 2, the clamping assembly 3 includes a supporting column 31, an insertion block 32, a clamping block 33 and a clamping spring 34, the upper surface of the circuit board 1 is provided with an insertion groove 11, the supporting column 31 is a rectangular columnar structure, one end of the supporting column 31 is fixedly connected with the bottom end of the fixing cover 22, and the other end of the supporting column 31 is vertically and fixedly connected with the insertion block 32; the inserting block 32 and the supporting column 31 are both inserted into the inserting groove 11 in a sliding manner, the inserting block 32 is of a rectangular block structure, the upper surface of the inserting block 32 is provided with a telescopic groove 321, the clamping spring 34 is positioned in the telescopic groove 321, one end of the clamping spring 34 is fixedly connected with the inserting block 32, and the other end of the clamping spring 34 is fixedly connected with the clamping block 33; the clamping block 33 is of a block structure, the circuit board 1 is provided with a sliding groove 12, the sliding groove 12 is communicated with the insertion groove 11, the insertion block 32 is inserted in the sliding groove 12 in a sliding manner, the circuit board 1 is provided with a clamping groove 13, the clamping groove 13 is communicated with the sliding groove 12, and the clamping block 33 is inserted in the clamping groove 13 and the sliding groove 12 in a sliding manner; the side wall of the clamping block 33 facing away from the clamping spring 34 is gradually inclined from the end close to the supporting column 31 to the end far from the supporting column 31 to the side close to the clamping spring 34.

Refer to fig. 1 and fig. 2, when installing heat dissipation assembly 2, operating personnel only need to slide support column 31 and grafting piece 32 and peg graft in inserting groove 11, set up the fixed cover 22 of direction slip along spout 12, fixed cover 22 drives support column 31 and grafting piece 32, grafting piece 32 drives joint piece 33 and joint spring 34, the inclined plane structure of joint piece 33 provides the guide effect for grafting of grafting piece 32, joint piece 33 compression joint spring 34 is until joint groove 13 and flexible groove 321 intercommunication, joint spring 34 resets this moment, joint piece 33 slides and pegs graft in joint groove 13, fixed cover 22 and circuit board 1 between fixed has been realized, and is easy to operate, the convenience in use of joint assembly 3 has been improved.

Referring to fig. 1 and 2, an unlocking assembly 4 is arranged between the clamping block 33 and the circuit board 1, the unlocking assembly 4 includes an extrusion plate 41, a connection column 42 and a pressing plate 43, the extrusion plate 41 and the pressing plate 43 are both rectangular plate-shaped structures, the connection column 42 is a circular columnar structure, the connection column 42 is vertically and fixedly connected with the extrusion plate 41 and the pressing plate 43, the circuit board 1 is provided with an unlocking hole 14, the bottom end of the fixing cover 22 is provided with an unlocking groove 223, the unlocking hole 14 is communicated with the unlocking groove 223 and the clamping groove 13, the connection column 42 is slidably inserted into the unlocking hole 14, the extrusion plate 41 is slidably inserted into the clamping groove 13, and the pressing plate 43 is slidably inserted into the unlocking groove 223; be provided with reset spring 5 between pressing plate 43 and the circuit board 1, reset spring 5 one end and pressing plate 43 fixed connection, reset spring 5 other end and circuit board 1 fixed connection.

Refer to fig. 1 and fig. 2, when dismantling radiator unit 2, operating personnel only need press the clamp plate 43 by hand, press clamp plate 43 extrusion reset spring 5, and press clamp plate 43 drives spliced pole 42 and extrusion plate 41, extrusion plate 41 extrudees joint piece 33, until joint piece 33 complete roll-off joint groove 13, joint spring 34 is compressed this moment, joint piece 33 is arranged in flexible groove 321 completely, along 12 length direction slip fixed cowling 22 of spout, when arranging in inserting groove 11 completely until inserting block 32 and support column 31, radiator unit 2 can be taken off, and the operation is thus simple, the convenience in use of radiator unit 2 is improved.

Referring to fig. 1 and 2, a dust-proof assembly 6 is disposed outside the fixed cover 22, the dust-proof assembly 6 includes a fixed frame 61 and a protective net 62, the fixed frame 61 is an annular plate-shaped structure, the protective net 62 is fixedly connected with the fixed frame 61, a connecting bolt 7 is disposed between the fixed frame 61 and the fixed cover 22, and the connecting bolt 7 penetrates through the fixed frame 61 and is in threaded connection with the fixed cover 22. The protective net 62 can block impurities, protect the fan without affecting ventilation, and improve the use stability of the heat dissipation assembly 2; the connecting bolt 7 facilitates the detachment between the protective assembly and the fixed cover 22, thereby improving the convenience of use of the protective assembly.

The implementation principle of the double-sided blind hole multilayer circuit board in the embodiment of the application is as follows: when the circuit board 1 normally works, the heat dissipation fan 21 is started, the air in the fixing cover 22 can circulate through the air vent 222, the air flow is accelerated by the heat dissipation fan 21, the heat exchange speed between the circuit board 1 and the outside is improved, the normal work of electronic elements in the use process of the circuit board 1 is ensured, and further the working efficiency of the circuit board 1 is improved.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a two-sided blind hole multilayer circuit board which characterized in that: the heat dissipation device comprises a circuit board (1), wherein a heat dissipation assembly (2) used for improving the heat dissipation performance of the circuit board (1) is arranged on the upper surface of the circuit board (1), and a clamping assembly (3) used for connecting the heat dissipation assembly (2) and the circuit board (1) is arranged between the heat dissipation assembly (2) and the circuit board (1).

2. The double-sided blind via multilayer circuit board of claim 1, wherein: the heat dissipation assembly (2) comprises a heat dissipation fan (21) and a fixing cover (22), the fixing cover (22) is of a cylindrical structure with a closed top end, and the bottom end of the fixing cover (22) is connected with the upper surface of the circuit board (1); a fan placing hole (221) is formed in the top plate of the fixed cover (22), the heat dissipation fan (21) is located in the fan placing hole (221), and the heat dissipation fan (21) is fixedly connected with the fixed cover (22); the circumferential side wall of the fixed cover (22) is provided with a vent hole (222).

3. The double-sided blind via multilayer circuit board of claim 2, wherein: the clamping assembly (3) comprises a supporting column (31), an inserting block (32), a clamping block (33) and a clamping spring (34), one end of the supporting column (31) is fixedly connected with the bottom end of the fixing cover (22), and the other end of the supporting column (31) is fixedly connected with the inserting block (32); the upper surface of the circuit board (1) is provided with an insertion groove (11), the support column (31) and the insertion block (32) are inserted into the insertion groove (11) in a sliding manner, the circuit board (1) is provided with a sliding groove (12), the sliding groove (12) is communicated with the insertion groove (11), and the insertion block (32) is inserted into the sliding groove (12) in a sliding manner; one end, far away from the supporting column (31), of the insertion block (32) is provided with a telescopic groove (321), the clamping spring (34) is located in the telescopic groove (321), one end of the clamping spring (34) is fixedly connected with the insertion block (32), the other end of the clamping spring (34) is fixedly connected with the clamping block (33), the circuit board (1) is provided with a clamping groove (13), and the clamping block (33) is inserted into the telescopic groove (321) and the clamping groove (13) in a sliding mode; an unlocking component (4) is arranged between the clamping block (33) and the circuit board (1).

4. A double-sided blind via multilayer circuit board according to claim 3, wherein: the clamping block (33) deviates from the side wall of the clamping spring (34) and inclines towards one side close to the clamping spring (34) gradually from one end close to the supporting column (31) to one end far away from the supporting column (31).

5. A double-sided blind via multilayer circuit board according to claim 3, wherein: an unlocking groove (223) is formed in the circumferential side wall of the fixed cover (22), an unlocking hole (14) is formed in the circuit board (1), and the unlocking hole (14) is communicated with the unlocking groove (223) and the clamping groove (13); unblock subassembly (4) including extruding board (41), spliced pole (42) and pressing board (43), spliced pole (42) slide and peg graft in unlocking hole (14), and spliced pole (42) fixed connection extrude board (41) and pressing board (43), extrude board (41) slide and peg graft in joint groove (13), press board (43) slide and peg graft in unlocking groove (223).

6. The double-sided blind via multilayer circuit board of claim 5, wherein: be provided with reset spring (5) between pressing panel (43) and circuit board (1), reset spring (5) one end and pressing panel (43) lower surface fixed connection, reset spring (5) other end and circuit board (1) upper surface fixed connection.

7. The double-sided blind via multilayer circuit board of claim 2, wherein: fixed cover (22) circumference lateral wall is provided with dustproof subassembly (6), and dustproof subassembly (6) are including fixed frame (61) and protection network (62), and fixed frame (61) are the annular platelike structure, and protection network (62) and fixed frame (61) fixed connection, and protection network (62) lid is established in air vent (222) outside, and fixed frame (61) and fixed cover (22) fixed connection.

8. The double-sided blind via multilayer circuit board of claim 7, wherein: and a connecting bolt (7) is arranged between the fixed frame (61) and the fixed cover (22), and the connecting bolt (7) penetrates through the side walls of the fixed frame (61) and the fixed cover (22) and is in threaded connection with the fixed cover (22).