High-thermal-conductivity printed circuit board

Abstract

The utility model relates to the technical field of high-thermal-conductivity printed circuit boards, and discloses a high-thermal-conductivity printed circuit board, which comprises a fixed plate and a connecting plate, a thermal expansion compensation layer is fixedly connected to the top of the fixed plate close to the edge, and a heat dissipation plate is fixedly connected to the bottom of the inner wall of the thermal expansion compensation layer. First heat dissipation holes are formed in the periphery of the outer wall of the heat dissipation plate, heat conduction strips are fixedly connected to the left side and the right side of the inner wall of the heat dissipation plate, a heat transfer plate is fixedly connected to the middle of the inner wall of the thermal expansion compensation layer, insulation strips are fixedly connected to the left side and the right side of the top of the heat transfer plate, and a copper coating layer is fixedly connected to the tops of the multiple insulation strips. And a fixing mechanism is arranged at the bottom of the fixing plate. According to the utility model, the thermal expansion compensation layer is fixedly connected to the edge of the top of the fixed plate, and the heat dissipation plate is fixedly connected to the bottom of the inner wall of the thermal expansion compensation layer, so that the circuit board has better heat dissipation performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to high thermal conductivity printed circuit board technical field especially relates to a high thermal conductivity printed circuit board. BACKGROUND

[0002] With the rapid development of science and technology, electronic equipment is constantly advancing towards miniaturization and multifunctionalization, which makes the integration of electronic components higher and higher, and a large number of electronic components are densely assembled in limited space. At the same time, in order to meet the growing performance requirements, the power of electronic components is also increasing, resulting in a sharp rise in power density. The performance of the processor in the smart phone is constantly improving, and its core frequency and power consumption also increase. Under such circumstances, the heat generated by electronic equipment increases a lot. If it cannot be cooled in time and effectively, the temperature of the electronic component will rise rapidly, thereby affecting its performance and stability, and even may cause component damage, shorten the service life of the equipment.

[0003] After searching, Chinese patent publication No. CN114531775B discloses a printed circuit board, which comprises at least L2 / L3 core board and L4 / L5 core board, and at least two core boards are placed in sequence. Based on the L2 / L3 core board and the L4 / L5 core board, for each additional N core boards, the printed circuit board increases 2N test holes, and N is an integer greater than or equal to 0. The short circuit condition or open circuit condition between the test holes is related to whether the core board is placed upside down. The printed circuit board provided by the embodiment of the application reduces the detection difficulty of the core board placed upside down of the printed circuit board. However, the printed circuit board of the above-mentioned device usually uses epoxy resin glass fiber cloth as the substrate material, and its thermal conductivity is low, generally in this range. This low thermal conductivity makes it difficult for heat to quickly conduct and diffuse on the circuit board, and hot spots are easily formed in local areas, causing the temperature of the electronic component to be too high. In some high-performance computer motherboards, due to the large amount of heat generated by the processor key components, the heat dissipation capacity of the traditional printed circuit board is limited, and a large heat dissipation fan and heat dissipation fin are often needed to assist heat dissipation, which not only increases the volume and cost of the equipment, but also may cause noise and energy consumption problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a high thermal conductivity printed circuit board, which aims to improve the problem that the printed circuit board in the prior art usually uses epoxy resin glass fiber cloth as the substrate material, and its thermal conductivity is low, generally in this range. This low thermal conductivity makes it difficult for heat to quickly conduct and diffuse on the circuit board.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of high thermal conductivity printed circuit board, including fixed plate and connecting plate, the top of the fixed plate is fixedly connected with thermal expansion compensation layer near edge, the inner wall bottom of the thermal expansion compensation layer is fixedly connected with heat dissipation plate, the outer wall all around of the heat dissipation plate is equipped with heat dissipation hole one, the inner wall left and right sides of the heat dissipation plate are fixedly connected with heat conduction strip, the inner wall middle part of the thermal expansion compensation layer is fixedly connected with heat transfer plate, the top left and right sides of the heat transfer plate are fixedly connected with insulating strip, the top of multiple insulating strips is fixedly connected with copper cladding, the bottom of the fixed plate is provided with fixed mechanism, and the fixed mechanism is used to fix circuit board.

[0006] Through the above technical scheme: in the upper end edge of fixed plate, a thermal expansion compensation layer is connected by a kind of fixed mode, this thermal expansion compensation layer is designed to deal with the material expansion caused by temperature change, to ensure the stability and reliability of the whole device, a heat dissipation plate is fixedly connected in the inner wall bottom of thermal expansion compensation layer, which is mainly used to effectively conduct and dissipate the heat generated during equipment operation, in order to further improve the heat dissipation efficiency, multiple heat dissipation holes one are evenly arranged on the outer wall of heat dissipation plate, which helps air circulation, thereby enhancing the heat dissipation effect, a heat transfer plate is fixedly connected in the inner wall middle part of thermal expansion compensation layer, which is mainly used to ensure that the circuit board does not displace during operation, thereby ensuring the normal operation and long-term stability of the equipment.

[0007] As a further description of the above technical scheme:

[0008] The fixed mechanism includes a connecting plate, which is mounted on the bottom of the fixed plate, the inner wall of the connecting plate is slidably connected with a threaded sleeve, the outer wall top of the threaded sleeve is slidably connected with a mounting plate, the inner wall top of the threaded sleeve is threadedly connected with a threaded shaft, the top of the threaded shaft is fixedly connected with a fixed rotating plate, and the bottom of the threaded sleeve is fixedly connected with a limiting plate.

[0009] Through the above technical scheme: in the inner wall of connecting plate, a threaded sleeve is designed to be slidably connected, the outer wall top of the threaded sleeve is further designed to be slidably connected with a mounting plate, so that the mounting plate can slide up and down on the outer wall of the threaded sleeve, and a fixed rotating plate is fixedly connected on the top of the threaded shaft, so that when the threaded shaft rotates, the threaded sleeve can be ensured not to exceed the predetermined range during sliding.

[0010] As a further description of the above technical scheme:

[0011] The inner wall middle part of the mounting plate is fixedly connected with fans on the left and right sides, and multiple fans are used to dissipate heat from the circuit board.

[0012] Through the technical scheme, the inner wall of the mounting plate is fixedly connected with a plurality of fans on the left and right sides of the middle part, which are designed to effectively dissipate heat from the circuit board. Through such an arrangement, the air flow is smooth, thereby improving the heat dissipation efficiency.

[0013] As a further description of the above technical scheme:

[0014] The outer wall of the fixing plate is fixedly connected with a plurality of fixing shafts on the front and rear sides, and the fixing shafts are fixed to the top of the mounting plate.

[0015] Through the technical scheme, the outer wall of the fixing plate is fixedly connected with a plurality of fixing shafts on the front and rear sides, and the fixing shafts are fixed to the top of the mounting plate.

[0016] As a further description of the above technical scheme:

[0017] The top of the mounting plate is fixedly connected with a plurality of handles on the front and rear sides, and the outer wall of the handle is fixedly connected with a non-slip sleeve.

[0018] Through the technical scheme, the top of the mounting plate is fixedly connected with a plurality of handles on the front and rear sides, which are designed to facilitate the user to grasp and move the mounting plate. In order to further improve the comfort and safety of grasping, the outer wall of the handle is fixedly connected with a non-slip sleeve.

[0019] As a further description of the above technical scheme:

[0020] The bottom of the fixing plate is fixedly connected with a plurality of protective pads at the four corners, and the protective pads are symmetrically arranged on the left and right sides of the fixing plate.

[0021] Through the technical scheme, the bottom of the fixing plate is fixedly connected with a plurality of protective pads at the four corners, which are designed to protect the fixing plate when placed on the ground or other hard surfaces, preventing the fixing plate from being directly in contact with the hard surface and causing wear or scratches.

[0022] As a further description of the above technical scheme:

[0023] The top of the mounting plate is fixedly connected with a plurality of protective strips on the left and right sides, and the bottom of the mounting plate is fixedly connected with a protective plate on the front and rear sides.

[0024] Through the technical scheme, the top of the mounting plate is fixedly connected with a plurality of protective strips on the left and right sides, which can effectively prevent the edges of the mounting plate from being damaged due to accidental collision or friction during use.

[0025] As a further description of the above technical scheme:

[0026] The top of the mounting plate is fixedly connected with a protection strip near the middle front and rear sides, and the outer wall of the mounting plate is fixedly connected with a soft pad around.

[0027] Through the above technical scheme: the top area of the mounting plate, near the middle front and rear sides, is fixedly connected with protection strips, and the setting of the protection strips aims to provide additional protection to prevent damage to the mounting plate during installation or use.

[0028] The utility model has the advantages of the following beneficial effects:

[0029] 1、In the utility model, the heat expansion compensation layer is fixedly connected at the top edge of the fixed plate, the heat dissipation plate is fixedly connected at the inner wall bottom of the heat expansion compensation layer, a plurality of heat conduction strips are fixedly connected at the inner wall left and right sides of the heat dissipation plate for transmission of high-temperature gas, the heat dissipation holes one are formed around the outer wall of the fixed mechanism for also conducting high temperature, and the heat transfer plate is fixedly connected at the middle of the inner wall of the heat expansion compensation layer, so that the circuit board has better heat dissipation performance.

[0030] 2、In the utility model, in order to better fix the circuit board, the sliding holes are formed at the four corners of the mounting plate, the threaded sleeve is slidably arranged at the outer wall of the sliding hole, the threaded sleeve can slide through the connecting plate and the mounting plate by sliding from bottom to top, the threaded shaft is threadedly connected at the inner wall top of the threaded sleeve, the fixed rotating plate fixed to the outer wall of the threaded shaft can be rotated to fixedly connect the connecting plate and the mounting plate, so that the circuit boards can be quickly disassembled and fixed, and the use requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A front side perspective view of the high-thermal-conductivity printed circuit board fixing plate is provided for the utility model;

[0032] Figure 2 A partial structure view of the high-thermal-conductivity printed circuit board mounting plate is provided for the utility model;

[0033] Figure 3 A partial structure view of the high-thermal-conductivity printed circuit board heat expansion compensation layer is provided for the utility model;

[0034] Figure 4 A partial structure display view of the high-thermal-conductivity printed circuit board heat conduction strip is provided for the utility model;

[0035] Figure 5 A partial structure view of the high-thermal-conductivity printed circuit board threaded sleeve is provided for the utility model.

[0036] LEGEND:

[0037] 1, fixed plate; 2, fixed mechanism; 201, connecting plate; 202, threaded sleeve; 203, threaded shaft; 204, fixed rotating plate; 205, limiting plate; 206, mounting plate; 3, thermal expansion compensation layer; 4, heat dissipation plate; 5, heat conduction strip; 6, heat dissipation hole one; 7, heat transfer plate; 8, insulating strip; 9, copper clad layer; 10, fan; 11, protective pad; 12, soft pad; 13, fixed shaft; 14, handle; 15, anti-skid sleeve; 16, protective plate; 17, protective strip; 18, protective strip. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] Please refer to the drawings in the embodiments of the utility model Figure 2 - the drawings in the embodiments of the utility model Figure 4 The utility model provides an embodiment: a kind of high thermal conductivity printed circuit board, including fixed plate 1 and connecting plate 201, the top of fixed plate 1 is close to the edge and is fixedly connected with thermal expansion compensation layer 3, the inner wall bottom of thermal expansion compensation layer 3 is fixedly connected with heat dissipation plate 4, the outer wall all around of heat dissipation plate 4 is equipped with heat dissipation hole one 6, the inner wall left and right sides of heat dissipation plate 4 are fixedly connected with heat conduction strip 5, the inner wall left and right sides of heat dissipation plate 4 are fixedly connected with heat conduction strip 5, these heat conduction strip 5 can rapidly conduct heat from heat dissipation plate 4 to other components, to realize more efficient thermal management, the inner wall middle part of thermal expansion compensation layer 3 is fixedly connected with heat transfer plate 7, the top left and right sides of heat transfer plate 7 are fixedly connected with insulating strip 8, the top of multiple insulating strips 8 is fixedly connected with copper clad layer 9, the bottom of fixed plate 1 is provided with fixed mechanism 2, and fixed mechanism 2 is used to fix circuit board;

[0040] Specifically, in the vicinity of the upper end edge of the fixed plate 1, a thermal expansion compensation layer 3 is connected by a fixed manner, which is designed to cope with the material expansion caused by temperature changes to ensure the stability and reliability of the entire device, a heat dissipation plate 4 is fixedly connected to the inner wall bottom of the thermal expansion compensation layer 3, which mainly functions to effectively conduct and dissipate the heat generated during the operation of the device, in order to further improve the heat dissipation efficiency, a plurality of heat dissipation holes 6 are evenly arranged on the outer wall of the heat dissipation plate 4, which helps air circulation, thereby enhancing the heat dissipation effect, a heat transfer plate 7 is fixedly connected to the middle of the inner wall of the thermal expansion compensation layer 3, which functions to transfer the heat of the heat dissipation plate 4 to other components that need to be heated, and a fixing mechanism 2 is arranged at the bottom of the fixed plate 1, which can be screws, buckles or any other suitable fixing means, and its main purpose is to ensure that the circuit board does not displace during operation, thereby ensuring the normal operation and long-term stability of the device.

[0041] Please refer to the attached Figure 3 - attached Figure 5 The fixing mechanism 2 includes a connecting plate 201, which is mounted around the bottom of the fixed plate 1, the inner wall of the connecting plate 201 is slidably connected with a threaded sleeve 202, the outer wall top of the threaded sleeve 202 is slidably connected with a mounting plate 206, the inner wall top of the threaded sleeve 202 is threadedly connected with a threaded shaft 203, and the inner wall top of the threaded sleeve 202 is designed to have a threaded structure, so that the threaded shaft 203 can be threadedly connected therein, the top of the threaded shaft 203 is fixedly connected with a fixed rotating plate 204, and the bottom of the threaded sleeve 202 is fixedly connected with a limiting plate 205.

[0042] Specifically, the inner wall of the connecting plate 201 is designed to slidably connect a threaded sleeve 202, the outer wall top of the threaded sleeve 202 is further designed to slidably connect a mounting plate 206, so that the mounting plate 206 can slide up and down on the outer wall of the threaded sleeve 202, and the top of the threaded shaft 203 is fixedly connected with a fixed rotating plate 204, so that when the threaded shaft 203 rotates, the fixed rotating plate 204 also rotates, and in addition, the bottom of the threaded sleeve 202 is fixedly connected with a limiting plate 205 to ensure that the threaded sleeve 202 does not exceed the predetermined range during sliding.

[0043] Please refer to the attached Figure 1 - attached Figure 3The inner wall of the mounting plate 206 is fixedly connected with fans 10 on the left and right sides of the middle part, and the plurality of fans 10 are used for heat dissipation of the circuit board. The outer wall of the fixed plate 1 is fixedly connected with fixed shafts 13 on the front and rear sides. In order to further enhance the stability and functionality of the structure, the outer wall of the fixed plate 1 is also designed with fixed connection points on the front and rear sides, and a plurality of fixed shafts 13 are fixedly installed on the connection points. The plurality of fixed shafts 13 are fixed on the top of the mounting plate 206. The top of the mounting plate 206 is fixedly connected with handles 14 on the front and rear sides. The outer wall of the plurality of handles 14 is fixedly connected with anti-skid sleeves 15.

[0044] Specifically, the inner wall of the mounting plate 206 is designed with fixed connection points on the left and right sides of the middle part, and a plurality of fans 10 are fixedly installed on the connection points. The main function of the fans 10 is to provide effective heat dissipation for the circuit board, so as to ensure that the circuit board will not be affected in performance or damaged due to overheating during operation. In addition, in order to facilitate user operation and movement, the top of the mounting plate 206 is designed with handles 14 on the front and rear sides. The handles 14 not only facilitate user gripping, but also improve the safety and comfort during gripping through the anti-skid sleeves 15 fixedly connected on the outer wall, so as to ensure that the user can safely and stably operate the equipment during use.

[0045] Please refer to the attached Figure 1 -attached Figure 3 The bottom of the fixed plate 1 is fixedly connected with protective pads 11 at the four corners. The plurality of protective pads 11 are symmetrically arranged on the left and right sides of the bottom of the fixed plate 1. The top of the mounting plate 206 is fixedly connected with protective strips 17 on the left and right sides. The bottom of the mounting plate 206 is fixedly connected with protective plates 16 on the front and rear sides. The top of the mounting plate 206 is fixedly connected with protective strips 18 on the front and rear sides near the middle part. The top of the mounting plate 206 is fixedly connected with protective strips 17 on the left and right sides. The main function of the protective strips 17 is to prevent external objects from scratching and damaging the top edge of the mounting plate 206 during use. The outer wall of the mounting plate 206 is fixedly connected with soft pads 12 around the mounting plate 206.

[0046] Specifically, the bottom of the four corners of the fixed plate 1 is fixedly connected with the protective pad 11, which is arranged to effectively prevent the fixed plate 1 from being directly rubbed and impacted when the fixed plate 1 is placed on the ground or other hard surface, thereby prolonging its service life. At the same time, the bottom of the mounting plate 206 is fixedly connected with the protective plate 16, which can provide additional protection for the bottom of the mounting plate 206, avoid damage to the bottom of the mounting plate 206 during movement or use, further, the top of the mounting plate 206 is fixedly connected with the protective strip 18, which is arranged to provide additional protection when the mounting plate 206 is installed or disassembled, prevent unnecessary damage to the middle part of the mounting plate 206, and the outer wall of the mounting plate 206 is fixedly connected with the soft pad 12, which can not only provide additional cushioning protection for the mounting plate 206, reduce the impact on the mounting plate 206 during transportation or use, but also reduce noise to some extent and provide a more comfortable user experience.

[0047] Working principle: The top edge of the fixed plate 1 is fixedly connected with the thermal expansion compensation layer 3, and the inner wall of the thermal expansion compensation layer 3 is fixedly connected with the heat dissipation plate 4 at the bottom, and a plurality of heat conducting strips 5 are fixedly connected with the inner wall of the heat dissipation plate 4 on the left and right sides for transmitting high temperature gas, and a plurality of heat dissipation holes 6 are formed in the outer wall of the fixed mechanism 2 for conducting heat, and a plurality of heat conducting plates 7 are fixedly connected with the inner wall of the thermal expansion compensation layer 3 in the middle for conducting the high temperature generated by the electric appliance installed on the copper clad layer 9 on the top of the heat conducting plate 7, and finally the plurality of fans 10 arranged at the bottom of the fixed plate 1 can make the circuit board have better heat dissipation performance;

[0048] At the same time, in order to better fix the circuit board, the four corners of the mounting plate 206 are provided with sliding holes, and the outer wall of the sliding hole is slidably connected with the threaded sleeve 202, which can be slidably connected with the connecting plate 201 and the mounting plate 206 by sliding from bottom to top, and the threaded shaft 203 is threadedly connected with the inner wall of the threaded sleeve 202 at the top, so that the threaded shaft 203 can drive the outer wall of the threaded shaft 203 to rotate and fix the connecting plate 201 and the mounting plate 206, thereby realizing quick disassembly and fixation of the circuit board and meeting the use requirement.

[0049] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high thermal conductive printed circuit board comprising a fixing plate (1) and a connecting plate (201), characterized in that: The top of the fixed plate (1) is fixedly connected with a thermal expansion compensation layer (3) near the edge, the inner wall bottom of the thermal expansion compensation layer (3) is fixedly connected with a heat dissipation plate (4), the outer wall of the heat dissipation plate (4) is provided with heat dissipation holes (6) around, the inner wall left and right sides of the heat dissipation plate (4) are fixedly connected with heat conduction strips (5), the inner wall middle part of the thermal expansion compensation layer (3) is fixedly connected with a heat transfer plate (7), the top left and right sides of the heat transfer plate (7) are fixedly connected with insulation strips (8), the top of a plurality of insulation strips (8) is fixedly connected with a copper clad layer (9), the bottom of the fixed plate (1) is provided with a fixing mechanism (2), and the fixing mechanism (2) is used for fixing the circuit board. The fixing mechanism (2) comprises a connecting plate (201), the connecting plate (201) is mounted on the bottom of the fixed plate (1), the inner wall of the connecting plate (201) is slidably connected with a threaded sleeve (202), the outer wall top of the threaded sleeve (202) is slidably connected with a mounting plate (206), the inner wall top of the threaded sleeve (202) is threadedly connected with a threaded shaft (203), the top of the threaded shaft (203) is fixedly connected with a fixed rotating plate (204), and the bottom of the threaded sleeve (202) is fixedly connected with a limiting plate (205). The inner wall middle part left and right sides of the mounting plate (206) are fixedly connected with fans (10), and a plurality of fans (10) are used for heat dissipation of the circuit board.

2. A high thermal conductivity printed circuit board according to claim 1, wherein: The outer wall front and back sides of the fixed plate (1) are fixedly connected with fixed shafts (13), and a plurality of fixed shafts (13) are fixed on the top of the mounting plate (206) around.

3. The high thermal conductivity printed circuit board of claim 1, wherein: The top front and back sides of the mounting plate (206) are fixedly connected with handles (14), and the outer walls of a plurality of handles (14) are fixedly connected with anti-skid sleeves (15).

4. The high thermal conductivity printed circuit board of claim 1, wherein: The bottom four corners of the fixed plate (1) are fixedly connected with protection pads (11), and a plurality of protection pads (11) are symmetrically arranged on the left and right sides of the bottom of the fixed plate (1).

5. The high thermal conductivity printed circuit board of claim 1, wherein: The top left and right sides of the mounting plate (206) are fixedly connected with protection strips (17), and the bottom front and back sides of the mounting plate (206) are fixedly connected with protection plates (16).

6. The high thermal conductivity printed circuit board of claim 1, wherein: The top middle part front and back sides of the mounting plate (206) are fixedly connected with protection strips (18), and the outer wall of the mounting plate (206) is fixedly connected with soft pads (12) around. The top middle part front and back sides of the mounting plate (206) are fixedly connected with protection strips (18), and the outer wall of the mounting plate (206) is fixedly connected with soft pads (12) around.

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