High-temperature-resistant PCB (printed circuit board)
Technical Field
The utility model relates to the technical field of high-temperature-resistant circuit boards, in particular to a high-temperature-resistant PCB.
Background
The PCB 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 provider for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing. However, the traditional PCB has a single structure, the high temperature resistance of the traditional PCB is poor, various electrical components on the PCB are heated to a high temperature due to the electrical components and the heat generated by current transmission when corresponding equipment works for a long time, and the PCB is easily damaged in a high temperature environment, so that the service life of the PCB is possibly reduced. Accordingly, a PCB with high temperature resistance is provided by those skilled in the art to solve the above-mentioned problems.
Disclosure of utility model
The utility model aims to provide a high-temperature-resistant PCB (printed Circuit Board) to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A high-temperature-resistant PCB comprises a PCB layer, a PCB main body structure and a heat dissipation structure, wherein the lower end of the PCB layer is provided with the PCB main body structure, the lower end of the PCB main body structure is provided with the heat dissipation structure, the PCB main body structure comprises an electric element, a heat dissipation hole, a first high-temperature-resistant layer, a second high-temperature-resistant layer, a protection bottom plate, a heat dissipation through groove, a first support column, a second support column, a third support column, a fourth support column and a first connecting threaded hole, a plurality of groups of electric elements are arranged on the upper surface of the PCB layer, a plurality of groups of heat dissipation holes which are in linear arrangement are arranged on the front side surface of the PCB layer, the heat dissipation holes penetrate through the front side surface and the rear side surface of the PCB layer, a first high-temperature-resistant layer is fixedly arranged on the bottom surface of the PCB layer, a high Wen Cenger is fixedly arranged on the bottom surface of the first high-temperature-resistant layer, a protection bottom plate is fixedly arranged on the bottom surface of the second high-temperature-resistant layer, and a plurality of groups of heat dissipation through grooves are arranged on the bottom surface of the protection bottom plate.
Preferably, the first support column is fixedly arranged at the front end of the left side on the bottom surface of the protective bottom plate, and the second support column is fixedly arranged at the rear end of the left side on the bottom surface of the protective bottom plate.
Preferably, the support column III is fixedly arranged at the front end of the right side on the bottom surface of the protective bottom plate, and the support column IV is fixedly arranged at the rear end of the right side on the bottom surface of the protective bottom plate.
Preferably, the middle parts of the bottom surfaces of the first support column, the second support column, the third support column and the fourth support column are respectively provided with a first connecting threaded hole.
The heat radiation structure comprises a heat radiation bottom plate, a second connecting threaded hole, a mounting through hole, a drying layer, a first protection frame, a first micro heat radiation fan, a second protection frame and a second micro heat radiation fan, wherein the heat radiation bottom plate is arranged at the bottoms of the first support column, the second support column, the third support column and the fourth support column.
Preferably, a drying layer is fixedly arranged on the bottom surface of the heat dissipation bottom plate, and connection threaded holes II are formed in the periphery of the upper surface of the heat dissipation bottom plate in a penetrating manner.
Preferably, the number of the connecting threaded holes II is four, the four groups of connecting threaded holes II penetrate through the drying layer, the positions of the four groups of connecting threaded holes II respectively correspond to the positions of the connecting threaded holes I on the bottom surfaces of the first support column, the second support column, the third support column and the fourth support column, the four groups of connecting threaded holes II on the upper surface of the heat dissipation base plate are respectively connected with the connecting threaded holes I on the bottom surfaces of the first support column, the second support column, the third support column and the fourth support column through bolts, and therefore the main structure of the circuit board can be fixed on the upper surface of the heat dissipation base plate.
Preferably, the front end and the rear end on the upper surface of the radiating bottom plate are penetrated and symmetrically provided with two groups of mounting through holes, and the mounting through holes penetrate through the drying layer.
Preferably, a first protection frame is arranged on the left side of the upper surface of the radiating bottom plate, and a first miniature radiating fan is arranged in the first protection frame.
Preferably, a second protection frame is arranged on the right side of the upper surface of the radiating bottom plate, a second micro radiating fan is arranged in the second protection frame, and the first micro radiating fan and the second micro radiating fan are used for carrying out blowing and radiating on the main structure of the circuit board at the upper ends of the first micro radiating fan and the second micro radiating fan.
Compared with the prior art, the circuit board structure has the beneficial effects that the four groups of connecting threaded holes on the upper surface of the radiating bottom plate are respectively connected with the first supporting column, the second supporting column, the third supporting column and the first connecting threaded holes on the bottom surface of the fourth supporting column through bolts, so that the circuit board main body structure is fixed on the upper surface of the radiating bottom plate, then the whole structure is fixed on a proper position through the bolts and the mounting through holes on the radiating bottom plate, the high temperature resistance performance of the whole circuit board main body structure can be improved through the first high temperature resistant layer and the second high temperature resistant layer, the inside of the printed circuit board layer can be radiated through the radiating holes, the heat generated by the operation of electrical elements on the surface of the printed circuit board layer is effectively reduced, the service life of the printed circuit board layer is prevented from being reduced due to the high temperature effect, the first micro radiating fan and the second micro radiating fan are used for blowing the circuit board main body structure at the upper end of the micro radiating fan, the circulation speed of the air around the circuit board main body structure is increased, the heat inside the circuit board main body structure is taken away, the heat inside the circuit board main body structure is easily carried away, the traditional PCB can be damaged due to the fact that the heat elements on the PCB can be easily produced on the surface of the printed circuit board, and the PCB is poor in the condition that the corresponding electrical elements are relatively has high temperature resistance performance, and the PCB is easy to cause the heat of the electrical elements on the PCB is damaged, and the PCB is easy to cause the high temperature resistance to cause the service life of the electrical element.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a high temperature resistant PCB.
Fig. 2 is a schematic diagram showing a part of the structure of a high temperature resistant PCB.
Fig. 3 is a schematic structural diagram of a main circuit board structure in a high temperature resistant PCB circuit board.
Fig. 4 is a schematic structural diagram of a bottom structure of a main circuit board structure in a high temperature resistant PCB circuit board.
Fig. 5 is a schematic structural diagram of a heat dissipating structure in a high temperature resistant PCB.
In the figure, the first heat radiation layer is 1-printed circuit board layer, the first heat radiation layer is 3-heat radiation layer, the second heat radiation layer is 4-heat radiation layer, the second protective bottom plate is 5-heat radiation groove is 501-heat radiation through groove, the first support column is 6-heat radiation layer, the second support column is 7-heat radiation layer, the third support column is 8-heat radiation layer is 9-support column, the first 10-connection threaded hole is 11-heat radiation bottom plate, the second 1101-connection threaded hole is 1102-installation through hole is 1103-drying layer, the first protective frame is 12-heat radiation layer, the first 1201-micro heat radiation fan is 13-protective frame and the second 1301-micro heat radiation fan is arranged.
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.
Referring to FIGS. 1-5, in an embodiment of the utility model, a high temperature resistant PCB circuit board comprises a PCB layer 1, a main circuit board structure and a heat dissipation structure, wherein the lower end of the PCB layer 1 is provided with the main circuit board structure, the lower end of the main circuit board structure is provided with the heat dissipation structure, and the main circuit board structure comprises an electrical element 101, a heat dissipation hole 2, a first high temperature resistant layer 3, a second high temperature resistant layer 4, a protective bottom plate 5, a heat dissipation through groove 501, a first support column 6, a second support column 7, a third support column 8, The upper surface of the printed circuit board layer 1 is provided with a plurality of groups of electrical components 101, the front side surface of the printed circuit board layer 1 is provided with a plurality of groups of heat dissipation holes 2 which are in linear arrangement, the heat dissipation holes 2 penetrate through the front side surface and the rear side surface of the printed circuit board layer 1, the bottom surface of the printed circuit board layer 1 is fixedly provided with a first high temperature resistant layer 3, the bottom surface of the first high temperature resistant layer 3 is fixedly provided with a second high temperature resistant layer 4, the bottom surface of the second high temperature resistant layer 4 is fixedly provided with a protective bottom plate 5, the bottom surface of the protective bottom plate 5 is penetrated and provided with a plurality of groups of heat dissipation through grooves 501, the left side front end on the bottom surface of the protective bottom plate 5 is fixedly provided with a first support column 6, the left side rear end on the bottom surface of the protective bottom plate 5 is fixedly provided with a second support column 7, the right side front end on the bottom surface of the protective bottom plate 5 is fixedly provided with a third support column 8, the right side rear end on the bottom surface of the protective bottom plate 5 is fixedly provided with a fourth support column 9, the bottom surface of the protective bottom plate 6, The middle parts of the bottom surfaces of the second support column 7, the third support column 8 and the fourth support column 9 are respectively provided with a first connecting threaded hole 10, the heat dissipation structure comprises a heat dissipation base plate 11, a second connecting threaded hole 1101, a mounting through hole 1102, a drying layer 1103, a first protective frame 12, a first micro heat dissipation fan 1201, a second protective frame 13 and a second micro heat dissipation fan 1301, the bottoms of the first support column 6, the second support column 7, the third support column 8 and the fourth support column 9 are jointly provided with the heat dissipation base plate 11, the drying layer 1103 is fixedly mounted on the bottom surface of the heat dissipation base plate 11, the periphery on the upper surface of the heat dissipation base plate 11 is penetrated with a second connecting threaded hole 1101, namely, the number of the second connecting threaded holes 1101 is four, the second connecting threaded holes 1101 of the four groups penetrate through the drying layer 1103, and the positions of the second connecting threaded holes 1101 of the four groups are respectively 6 times of the first support column, The positions of the first connecting threaded holes 10 on the bottom surfaces of the second supporting column 7, the third supporting column 8 and the fourth supporting column 9 correspond to each other, and the fourth group of connecting threaded holes 1101 are respectively connected with the first supporting column 6, the second supporting column 7, The support column III 8 is connected with the first 10 of connecting screw holes on the bottom surface of the support column IV 9 to fix the circuit board main body structure on the upper surface of the radiating bottom plate 11, the front and back both ends on the upper surface of the radiating bottom plate 11 are all penetrated and symmetrically provided with two groups of mounting through holes 1102, the mounting through holes 1102 penetrate the drying layer 1103, the left side on the upper surface of the radiating bottom plate 11 is provided with the first 12 of protective frames, the inside of the first 12 of protective frames is provided with the first 1201 of micro radiating fans, the right side on the upper surface of the radiating bottom plate 11 is provided with the second 13 of protective frames, and the inside of the second 13 of protective frames is provided with the second 1301 of micro radiating fans.
The working principle of the utility model is as follows:
The utility model relates to a high-temperature-resistant PCB (printed circuit board), which is characterized in that in a specific use process, four groups of connecting threaded holes 1101 on the upper surface of a radiating bottom plate 11 are respectively connected with connecting threaded holes 10 on the bottom surfaces of a first support column 6, a second support column 7, a third support column 8 and a fourth support column 9 through bolts, so that a main structure of the PCB is fixed on the upper surface of the radiating bottom plate 11, then the whole structure is fixed at a proper position through bolts and mounting through holes 1102 on the radiating bottom plate 11, the high-temperature resistance of the whole main structure of the PCB can be improved through a first high-temperature-resistant layer 3 and a second high-temperature-resistant layer 4, the interior of the PCB can be radiated through radiating holes 2, the heat generated by the operation of an electric element 101 on the surface of the PCB 1 is effectively reduced to the PCB 1, the service life of the PCB 1 is prevented from being reduced due to the high-temperature effect, the main structures of the PCB on the upper ends of the miniature radiator fan 1201 and the miniature radiator fan 1301 are fixed at a proper position through the mounting through the bolts and the mounting through holes 1102, the first miniature radiator fan 1301 and the second radiator fan 1301 are increased, and the heat of the main structure of the PCB can be circulated around the PCB is effectively removed, and the heat of the main structure of the PCB can be effectively removed.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.