CN210137491U - Circuit board heat radiation structure of advertisement player playing box - Google Patents
Circuit board heat radiation structure of advertisement player playing box Download PDFInfo
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- CN210137491U CN210137491U CN201920666269.1U CN201920666269U CN210137491U CN 210137491 U CN210137491 U CN 210137491U CN 201920666269 U CN201920666269 U CN 201920666269U CN 210137491 U CN210137491 U CN 210137491U
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Abstract
The utility model relates to a circuit board heat radiation structure of box is played to advertisement machine, it is including broadcast box shell, a plurality of built-in PCB boards and a plurality of heat dissipation guide pillar, wherein, a plurality of these built-in PCB sheet layers are established in this broadcast box shell, and a plurality of these heat dissipation guide pillars wear to establish simultaneously and fix in a plurality of these built-in PCB boards, and a plurality of these heat dissipation guide pillars are established a plurality of these built-in PCB grillages in this broadcast box shell, and this heat dissipation guide pillar includes cylinder, top cap connection pad, bottom plate connection pad and PCB board connection pad, the utility model discloses a this heat dissipation guide pillar can carry out heat conduction radiating effect to a plurality of these built-in PCB boards that set up in this broadcast box shell simultaneously, and simultaneously, this heat dissipation guide pillar can establish a plurality of these built-in PCB.
Description
Technical Field
The utility model relates to a circuit board heat radiation structure especially indicates an use circuit board heat radiation structure in advertisement machine broadcast box.
Background
The advertising machine playing box is an intelligent digital device matched with an advertising machine, the advertising machine is generally arranged in public places to play video advertisements, the working time of the advertising machine is very long because the main function of the advertising machine is to play video propaganda advertisements outwards, and most advertising machines do not stop working for months after being started under the conventional condition.
Under the above working conditions, the playing box matched with the advertising machine has a long working time, a circuit board and a plurality of electronic components are integrated in the playing box, and the requirement of long-time heat dissipation is difficult to achieve by adopting the traditional circuit board heat dissipation structure, which is a main defect of the traditional technology.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical scheme who adopts does: the utility model provides a circuit board heat radiation structure of advertisement machine broadcast box, its includes broadcast box shell, a plurality of built-in PCB board and a plurality of heat dissipation guide pillar, and wherein, a plurality of these built-in PCB sheet layers are established in this broadcast box shell, and a plurality of these heat dissipation guide pillars wear to establish simultaneously and fix in a plurality of these built-in PCB boards, and a plurality of these heat dissipation guide pillars establish a plurality of these built-in PCB grillages in this broadcast box shell, and this broadcast box shell includes top cap and bottom plate.
The built-in PCB board of each layer all has basic material layer and circuit layer, and this circuit layer sets up on this basic material layer top surface, has seted up the perforation on this built-in PCB board.
The heat dissipation guide pillar is arranged in the through hole of the built-in PCB in a penetrating mode and comprises a cylinder, a top cover connecting disc, a bottom plate connecting disc and a PCB connecting disc, wherein the top cover connecting disc and the bottom plate connecting disc are fixedly arranged at the upper end and the lower end of the cylinder respectively, the top cover connecting disc is arranged on the top face of the top cover in a propping mode, and the bottom plate connecting disc is arranged on the top face of the bottom plate in a propping mode. In the specific implementation, heat-conducting rubber pads are arranged between the top cover connecting disc and the bottom surface of the top cover and between the bottom plate connecting disc and the bottom plate, and can be made of heat-conducting silica gel.
The PCB connecting disc is screwed on the column body, an external thread part is arranged on the outer surface of the column body, the PCB connecting disc is provided with a connecting hole, an internal thread part is arranged on the inner surface of the connecting hole, the internal thread part is screwed with the external thread part, so that the PCB connecting disc is screwed on the column body, and the PCB connecting disc frame is arranged at the bottom of the base material layer of the built-in PCB.
When the PCB connecting disc is implemented, a heat-conducting glue layer is arranged between the PCB connecting disc and the base material layer, when the PCB connecting disc is implemented, the aperture of the through hole is larger than that of the connecting hole, namely, the aperture of the through hole is larger than that of the external thread part, the external thread part is arranged in the through hole in a penetrating mode, the external thread part is not in contact with the through hole, and when the PCB connecting disc is implemented, the cylinder, the top cover connecting disc, the bottom plate connecting disc and the PCB connecting disc are all made of metal copper.
The utility model has the advantages that: the utility model discloses a this heat dissipation guide pillar can carry out the heat conduction radiating action to a plurality of these built-in PCB boards that set up in this broadcast box shell simultaneously, and simultaneously, this heat dissipation guide pillar can establish a plurality of these built-in PCB grillages and fix in this broadcast box shell, the heat of each layer this built-in PCB board at first conducts on this PCB board connection pad, then, conduct on this cylinder, and at last, carry out the shell heat dissipation on this top cap and this bottom plate that conduct this broadcast box shell with the heat by this top cap connection pad and this bottom plate connection pad respectively, in order to promote the radiating efficiency.
Drawings
Fig. 1 is a schematic sectional view and a partial enlarged view of the present invention.
Detailed Description
As shown in fig. 1, a circuit board heat dissipation structure of a playing box of an advertisement player includes a playing box housing, a plurality of built-in PCB boards 10, and a plurality of heat dissipation guide posts 20.
Wherein, a plurality of this built-in PCB board 10 layer is established in this broadcast box shell, and a plurality of these heat dissipation guide pillars 20 wear to establish simultaneously and fix in a plurality of this built-in PCB boards 10.
The heat dissipating guide posts 20 are used to mount the built-in PCB board 10 in the play box housing.
The playbox housing includes a top cover 110 and a bottom plate 120.
Each of the built-in PCB boards 10 has a base material layer 11 and a circuit layer 12, and the circuit layer 12 is disposed on the top surface of the base material layer 11.
The built-in PCB 10 is formed with a through hole 13.
The heat dissipating guide posts 20 are inserted into the through holes 13 of the built-in PCB 10.
The heat dissipation guide pillar 20 includes a pillar 30, a top connection pad 40, a bottom connection pad 50 and a PCB connection pad 60, wherein the top connection pad 40 and the bottom connection pad 50 are respectively fixed at the upper and lower ends of the pillar 30.
The top cover connecting plate 40 is disposed on the bottom surface of the top cover 110, and the bottom plate connecting plate 50 is disposed on the top surface of the bottom plate 120.
In an implementation, the heat conductive rubber pads 130 are disposed between the top cover connection disc 40 and the bottom surface of the top cover 110 and between the bottom plate connection disc 50 and the bottom plate 120, and the heat conductive rubber pads 130 may be made of heat conductive silicone.
The PCB land 60 is screwed to the cylinder 30, a male screw portion 31 is provided on an outer surface of the cylinder 30, the PCB land 60 has a connection hole 61, and a female screw portion 62 is provided on an inner surface of the connection hole 61.
The female screw portion 62 is screwed with the male screw portion 31, thereby screwing the PCB panel land 60 on the cylinder 30.
The PCB land 60 is mounted on the bottom of the base material layer 11 of the built-in PCB 10.
In practice, a thermal conductive adhesive layer 14 is disposed between the PCB land 60 and the base material layer 11.
In practical applications, the diameter of the through hole 13 is larger than that of the connecting hole 61, that is, the diameter of the through hole 13 is larger than that of the external thread portion 31, the external thread portion 31 is inserted into the through hole 13, and the external thread portion 31 is not in contact with the through hole 13.
In practice, the post 30, the top cap land 40, the bottom plate land 50 and the PCB board land 60 are all made of copper metal.
The utility model discloses a this heat dissipation guide pillar 20 can carry out the heat conduction radiating effect to a plurality of these built-in PCB boards 10 that set up in this broadcast box shell simultaneously, and simultaneously, this heat dissipation guide pillar 20 can erect a plurality of these built-in PCB boards 10 and fix in this broadcast box shell.
The heat of each layer of the built-in PCB 10 is firstly conducted to the PCB land 60, then conducted to the post 30, and finally conducted to the top cover 110 and the bottom plate 120 of the playing box housing by the top cover land 40 and the bottom plate land 50, respectively, for housing heat dissipation, so as to improve the heat dissipation efficiency.
Claims (5)
1. The utility model provides a circuit board heat radiation structure of advertisement machine broadcast box which characterized in that: comprises a playing box shell, a plurality of built-in PCBs and a plurality of heat dissipation guide posts, wherein the built-in PCBs are arranged in the playing box shell, the heat dissipation guide posts are simultaneously penetrated and fixed in the built-in PCBs, the built-in PCBs are erected in the playing box shell by the heat dissipation guide posts, the playing box shell comprises a top cover and a bottom plate,
each layer of the built-in PCB board is provided with a base material layer and a circuit layer, the circuit layer is arranged on the top surface of the base material layer, a through hole is arranged on the built-in PCB board, the heat dissipation guide pillar is arranged in the through hole of the built-in PCB board in a penetrating way and comprises a cylinder, a top cover connecting disc, a bottom plate connecting disc and a PCB board connecting disc, wherein the top cover connecting disc and the bottom plate connecting disc are respectively and fixedly arranged at the upper end and the lower end of the cylinder, the top cover connecting disc is arranged on the bottom surface of the top cover in a propping way, the bottom plate connecting disc is arranged on the top surface of the bottom plate in,
the PCB connecting disc is screwed on the column body, an external thread part is arranged on the outer surface of the column body, the PCB connecting disc is provided with a connecting hole, an internal thread part is arranged on the inner surface of the connecting hole, the internal thread part is screwed with the external thread part, so that the PCB connecting disc is screwed on the column body, and the PCB connecting disc frame is arranged at the bottom of the base material layer of the built-in PCB.
2. The heat dissipating structure of the circuit board of the playing box of the advertisement player according to claim 1, wherein: and a heat-conducting adhesive layer is arranged between the PCB connecting disc and the base material layer.
3. The heat dissipating structure of the circuit board of the playing box of the advertisement player according to claim 1, wherein: the aperture of the through hole is larger than that of the connecting hole.
4. The heat dissipating structure of the circuit board of the playing box of the advertisement player according to claim 1, wherein: the cylinder, the top cover connecting disc, the bottom plate connecting disc and the PCB connecting disc are all made of metal copper.
5. The heat dissipating structure of the circuit board of the playing box of the advertisement player according to claim 1, wherein: and heat-conducting rubber pads are arranged between the top cover connecting disc and the bottom surface of the top cover and between the bottom plate connecting disc and the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920666269.1U CN210137491U (en) | 2019-05-10 | 2019-05-10 | Circuit board heat radiation structure of advertisement player playing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920666269.1U CN210137491U (en) | 2019-05-10 | 2019-05-10 | Circuit board heat radiation structure of advertisement player playing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210137491U true CN210137491U (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920666269.1U Active CN210137491U (en) | 2019-05-10 | 2019-05-10 | Circuit board heat radiation structure of advertisement player playing box |
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| Country | Link |
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| CN (1) | CN210137491U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111132454A (en) * | 2020-03-30 | 2020-05-08 | 江西科技学院 | Spliced printed circuit board structure |
| CN113784590A (en) * | 2021-09-06 | 2021-12-10 | 无锡华测电子***有限公司 | Tile type TR assembly device, external heat dissipation structure and rework structure |
| CN114071919A (en) * | 2021-11-16 | 2022-02-18 | 中国电子科技集团公司第二十九研究所 | High-density integrated high-power electronic module |
-
2019
- 2019-05-10 CN CN201920666269.1U patent/CN210137491U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111132454A (en) * | 2020-03-30 | 2020-05-08 | 江西科技学院 | Spliced printed circuit board structure |
| CN113784590A (en) * | 2021-09-06 | 2021-12-10 | 无锡华测电子***有限公司 | Tile type TR assembly device, external heat dissipation structure and rework structure |
| CN114071919A (en) * | 2021-11-16 | 2022-02-18 | 中国电子科技集团公司第二十九研究所 | High-density integrated high-power electronic module |
| CN114071919B (en) * | 2021-11-16 | 2023-08-18 | 中国电子科技集团公司第二十九研究所 | High-density integrated high-power electronic module |
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