Impact-resistant circuit board

Abstract

The utility model provides an anti-impact circuit board, which relates to the technical field of circuit boards, and comprises an anti-impact contact, a plurality of heat dissipation connecting holes are arranged in a substrate of the circuit board around an electronic component, and protective guide pillars attached to the electronic component are inserted in the heat dissipation connecting holes. And clamping sheets fastened with the circuit board substrate are fixedly mounted in the protective guide columns. The electronic equipment has the advantages that the anti-impact contacts capable of elastically deforming are arranged at the fitting end of the circuit board and the mounting surface, and the impact force transmitted to the circuit board is weakened by utilizing the properties of the anti-impact contacts, so that the influence of the impact on the circuit board in the electronic equipment is reduced; and the protection guide columns for attaching and fastening the electronic elements are installed in the circuit board, and the clamping pieces in the protection guide columns are used for fixing the protection guide columns, so that the protection guide columns fix the electronic elements on the circuit board, and the stability of the electronic elements is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board technical field, especially relates to an anti-impact circuit board. BACKGROUND

[0002] With the rapid development of electronic science and technology, electronic components, devices, instruments and meters are widely used in electronic industry. Because the working environment of many electronic devices is complex and changeable, sometimes even encountering extreme adverse natural conditions, the circuit board inside the electronic device is easily affected, and the circuit board is named ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper plate, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board, etc. Circuit board makes circuit miniaturization, visualization.

[0003] The existing circuit board is weak in impact resistance in the process of use, and is easy to be damaged when the electronic device is impacted by external force. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing an anti-impact circuit board to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an anti-impact circuit board in one aspect of embodiment, including the circuit board substrate that surface covers copper foil, the surface of the circuit board substrate is fixedly installed and connected with the electronic component of copper foil, the bottom circumference of the circuit board substrate is provided with a plurality of linear array's anti-impact contact point made of rubber, the inside of the circuit board substrate is opened and is provided with a plurality of heat dissipation connecting holes around the electronic component, the inside of the heat dissipation connecting hole is inserted and is provided with the protection guide column that is combined with the electronic component, the inside of the protection guide column is fixedly installed and is provided with the clamping piece that is fastened with the circuit board substrate, the top of the protection guide column is provided with the movable heat conduction column that can be telescopic adjustment, the inside of the movable heat conduction column is screw connected and is provided with the screw rod group that carries out screw transmission, the periphery of the movable heat conduction column is provided with the elastic rubber sleeve that is installed in the protection guide column.

[0006] It is preferred that the inside of the circuit board substrate is provided with a connecting hole for fixing the pins of the electronic component, the anti-impact contact point is made of rubber material, and the anti-impact contact point is located at one end of the circuit board substrate away from the electronic component.

[0007] The technical scheme is as follows: the copper foil on the circuit board substrate is used to connect the electronic components, so that the electronic components can interact and work, and after the circuit board is installed, the anti-impact contact is located between the circuit board and the installation plane, the circuit board is protected by the elasticity of the material of the anti-impact contact, when the electronic equipment with the installed circuit board is impacted, the impact effect is weakened by the anti-impact contact, the impact on the circuit board is reduced, and the circuit board is protected.

[0008] According to any one of the above schemes, preferably, the heat dissipation connecting holes are distributed around the electronic components, the heat dissipation connecting holes are provided with opening grooves at two ends for guiding the clamping pieces, one end of the protection guide column is provided with a boss penetrating through the heat dissipation connecting hole, the boss is internally provided with a slot for accommodating the clamping piece, and the protection guide column is internally provided with a sliding groove for accommodating and guiding the movable heat conduction column.

[0009] According to the technical scheme, the protection guide column and the circuit board can be connected through the heat dissipation connecting hole, the protection guide column is installed to the circumference of the electronic component, the electronic component on the circuit board is positioned by the protection guide column, the stability of the electronic component on the circuit board is improved, and the electronic component is prevented from shaking due to impact.

[0010] According to any one of the above schemes, preferably, the clamping piece comprises a fixed piece provided with a ring table at one end, a fastening spring for supporting connection, and an extrusion pad for tightly attaching the circuit board substrate, the fixed piece is rotationally connected to the inside of the boss, one end of the fixed piece is fixedly provided with the fastening spring in the boss, one end of the fastening spring is fixedly provided with the extrusion pad accommodated in the boss, the extrusion pad is located below the circuit board substrate, and the thickness of the extrusion pad is less than that of the anti-impact contact.

[0011] According to the technical scheme, after the protection guide column is installed on the circuit board, the extrusion pad is pulled out of the protection guide column, the extrusion pad stretches the fastening spring, the extrusion pad is rotated by 90 degrees, the extrusion pad drives the fixed piece to rotate through the fastening spring, the extrusion pad is loosened after rotation, and the extrusion pad is extruded and fastened to the circuit board under the action of the fastening spring, and the protection guide column is fixed through the extrusion between the extrusion pad and the circuit board.

[0012] According to any one of the above schemes, preferably, the movable heat conduction column and the protection guide column are made of heat conductive material, one end of the movable heat conduction column is provided with a matching table flush with the end face of the protection guide column, and the bottom of the matching table is fixedly provided with a telescopic rubber pad fixedly installed with the protection guide column.

[0013] The technical scheme is as follows: after the protective guide column is installed and fixed, the position of the movable heat-conducting column can be adjusted according to the size of the electronic component, the movable heat-conducting column moves in the interior of the protective guide column, different sizes of electronic components can be fixed and fastened, the telescopic rubber pad is deformed during the adjustment of the movable heat-conducting column, the closure between the movable heat-conducting column and the protective guide column is ensured, and the electronic component can be heat-conducted through the movable heat-conducting column and the protective guide column, so that the area of heat dissipation of the electronic component is increased.

[0014] Preferably, the screw rod set comprises a rotating wheel communicated with the exterior of the protective guide column, a transmission wheel for power transmission, and a transmission screw rod for screw transmission, the rotating wheel is rotationally connected to the interior of the protective guide column, the rotating wheel is engaged with the transmission wheel, the interior of the transmission wheel is fixedly provided with the transmission screw rod rotationally connected with the protective guide column, the transmission screw rod is screw-connected with the movable heat-conducting column, and the surfaces of the rotating wheel and the transmission wheel are provided with engagement toothed surfaces.

[0015] Preferably, the elastic rubber sleeve is fixedly installed at the end away from the movable heat-conducting column in the interior of the protective guide column, and the two ends of the elastic rubber sleeve are fixedly connected with the two ends of the fixed surface.

[0016] The technical scheme is as follows: when the movable heat-conducting column is adjusted, the rotating wheel is manually rotated, the transmission wheel is rotated by the rotating wheel, the transmission screw rod is rotated by the transmission wheel, the movable heat-conducting column moves in the interior of the protective guide column under the action of screw transmission, and the elastic rubber sleeve is deformed during the movement of the movable heat-conducting column, the closure between the protective guide column and the movable heat-conducting column is ensured by the elastic rubber sleeve, and the airtightness is improved.

[0017] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0018] 1、In the fixed surface of the circuit board and the installation surface, a plurality of anti-impact contact points capable of elastic deformation are arranged, the impact force transmitted to the circuit board is weakened by the properties of the anti-impact contact points, the influence of the impact on the internal circuit board of the electronic equipment is reduced, the protective guide column for fixing and fastening the electronic component is installed in the interior of the circuit board, the protective guide column is fixed by the clamping piece in the interior of the protective guide column, the electronic component on the circuit board is fixed by the protective guide column, the stability of the electronic component is enhanced, the influence of the impact on the internal electronic component of the circuit board is reduced, the bearing capacity of the circuit board is improved, and the safety of the circuit board in use is enhanced.

[0019] 2. A manually adjustable screw assembly is installed inside the protective guide post. The position of the movable heat-conducting column inside the protective guide post can be adjusted through the mechanical and threaded transmission of the screw assembly, thereby adjusting the protective size of the protective guide post and facilitating the protection of various electronic components of different sizes.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a first-view structural schematic diagram according to an embodiment of the present utility model;

[0023] Figure 2 This is a second-view structural schematic diagram according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the protective guide post according to an embodiment of the present utility model;

[0025] Figure 4 This is a partial exploded structural diagram according to an embodiment of the present utility model;

[0026] Among them: 1-Circuit board substrate, 2-Electronic components, 3-Impact-resistant contacts, 4-Heat dissipation connection holes, 5-Protective guide posts, 6-Clamping plates, 61-Fixing plates, 62-Fastening springs, 63-Extrusion patches, 7-Movable heat-conducting columns, 8-Screw assembly, 81-Actuating wheel, 82-Transmission wheel, 83-Transmission screw, 9-Elastic rubber sleeve, 10-Telescopic rubber pad. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0028] like Figures 1-4As shown, an impact-resistant circuit board according to an embodiment of the present invention includes a circuit board substrate 1 with a copper foil covering its surface. Electronic components 2 connected to the copper foil are fixedly mounted on the surface of the circuit board substrate 1. Several linear arrays of rubber impact-resistant contacts 3 are arranged around the bottom circumference of the circuit board substrate 1. Several heat dissipation connection holes 4 are opened around the electronic components 2 inside the circuit board substrate 1. Protective guide posts 5 that fit against the electronic components 2 are inserted into the heat dissipation connection holes 4. Clamping pieces 6 that are fastened to the circuit board substrate 1 are fixedly installed inside the protective guide posts 5. A movable heat-conducting post 7 that can be telescopically adjusted is provided at the top of the protective guide post 5. A screw assembly 8 for threaded transmission is threadedly connected inside the movable heat-conducting post 7. Elastic rubber sleeves 9 installed inside the protective guide posts 5 are arranged around the movable heat-conducting post 7.

[0029] Preferably, in any of the above solutions, the circuit board substrate 1 has a connection hole for fixing the pins of the electronic component 2, and the shock-resistant contact 3 is made of rubber material and is located at the end of the circuit board substrate 1 away from the electronic component 2.

[0030] The above technical solution is adopted: the copper foil on the circuit board substrate 1 is used to connect the various electronic components 2, so that the various electronic components 2 can interact and work. After the circuit board is installed, the shock-resistant contact 3 is located between the circuit board and the mounting plane. The elasticity of the material of the shock-resistant contact 3 itself protects the circuit board. When the electronic equipment mounted on the circuit board is impacted, the impact of the impact is weakened by the shock-resistant contact 3, reducing the impact effect on the circuit board and protecting the circuit board.

[0031] Preferably, in any of the above solutions, the heat dissipation connection holes 4 are distributed around the electronic components 2, and the two ends of the heat dissipation connection holes 4 are provided with openings for guiding the locking pieces 6. One end of the protective guide post 5 is provided with a boss that passes through the heat dissipation connection holes 4. The inside of the boss is provided with a slot for accommodating the locking pieces 6, and the inside of the protective guide post 5 is provided with a sliding groove for accommodating and guiding the movable heat-conducting post 7.

[0032] The above technical solution is adopted: the protective guide post 5 and the circuit board can be connected through the heat dissipation connection hole 4. The protective guide post 5 is installed on the circumference of the electronic component 2. The protective guide post 5 is used to limit the electronic component on the circuit board, improve the stability of the electronic component on the circuit board, and prevent the electronic component 2 from shaking due to impact.

[0033] Preferably, the engaging piece 6 includes a fixing piece 61 with a ring platform at one end, a fastening spring 62 for support and connection, and a pressing piece 63 for fastening and bonding the circuit board substrate 1. The fixing piece 61 is rotatably connected to the inside of the boss. The fastening spring 62 located inside the boss is fixedly installed at one end of the fixing piece 61. The pressing piece 63 housed inside the boss is fixedly installed at one end of the fastening spring 62. The pressing piece 63 is located below the circuit board substrate 1, and the thickness of the pressing piece 63 is less than the thickness of the shockproof contact 3.

[0034] Using the above technical solution: After the protective guide post 5 is installed on the circuit board, pull the extrusion patch 63 to pull it out of the protective guide post 5. The extrusion patch 63 stretches the fastening spring 62, and then rotates the extrusion patch 63 ninety degrees. The extrusion patch 63 drives the fixing plate 61 to rotate through the fastening spring 62. After rotation, the extrusion patch 63 is released so that it can be squeezed and fastened to the circuit board under the action of the fastening spring 62. The protective guide post 5 is fixed by the squeezing between the extrusion patch 63 and the circuit board.

[0035] Preferably, in any of the above schemes, both the movable heat-conducting column 7 and the protective guide column 5 are made of heat-conducting material. One end of the movable heat-conducting column 7 is provided with a bonding platform that is flush with the end face of the protective guide column 5. A telescopic rubber pad 10 that is fixedly installed on the bottom of the bonding platform and fixedly installed on the protective guide column 5 is provided.

[0036] The above technical solution allows for the following: After the protective guide post 5 is installed and fixed, the position of the movable heat-conducting post 7 can be adjusted according to the size of the electronic component 2, so that the movable heat-conducting post 7 can move inside the protective guide post 5. This allows for the fitting and fastening of electronic components 2 of different sizes. At the same time, during the adjustment of the movable heat-conducting post 7, the telescopic rubber pad 10 is deformed, ensuring the seal between the movable heat-conducting post 7 and the protective guide post 5. Furthermore, the movable heat-conducting post 7 and the protective guide post 5 can conduct heat to the electronic component 2, increasing the heat dissipation area of ​​the electronic component 2.

[0037] Preferably, in any of the above embodiments, the screw assembly 8 includes a deflector wheel 81 that communicates with the outside of the protective guide post 5, a transmission wheel 82 that transmits power, and a transmission screw 83 that performs threaded transmission. The deflector wheel 81 is rotatably connected to the inside of the protective guide post 5, and the deflector wheel 81 meshes with the transmission wheel 82. The transmission screw 83, which is rotatably connected to the protective guide post 5, is fixedly installed inside the transmission wheel 82. The transmission screw 83 is threadedly connected to the movable heat-conducting post 7. The surfaces of the deflector wheel 81 and the transmission wheel 82 are provided with meshing toothed surfaces.

[0038] Preferably, in any of the above solutions, the end of the elastic sleeve 9 away from the movable heat-conducting column 7 is fixedly installed inside the protective guide column 5, and the two ends of the elastic sleeve 9 are fixedly connected to the two ends of the bonding platform.

[0039] The above technical solution is adopted as follows: When adjusting the movable heat-conducting column 7, the actuating wheel 81 can be manually turned so that the actuating wheel 81 drives the transmission wheel 82 to rotate. The transmission wheel 82 drives the transmission screw 83 to rotate. Since the position of the transmission screw 83 is fixed, the movable heat-conducting column 7 moves inside the protective guide column 5 under the action of thread transmission. During the movement of the movable heat-conducting column 7, the elastic sleeve 9 is deformed. The elastic sleeve 9 is used to seal the space between the protective guide column 5 and the movable heat-conducting column 7, thereby improving the airtightness.

[0040] The working principle of this utility model of an impact-resistant circuit board is as follows:

[0041] Electronic component 2 is soldered onto circuit board substrate 1. Protective guide post 5 is passed through heat dissipation connection hole 4. Extrusion patch 63 is pulled and rotated 90 degrees before being released. Manually rotate dial wheel 81 to drive transmission wheel 82 to drive transmission screw 83 to rotate. Transmission screw 83 drives movable heat conduction post 7 to move inside protective guide post 5. Circuit board substrate 1 is installed into the electronic device with screws.

[0042] Compared with the prior art, the present invention has the following advantages:

[0043] 1. Multiple shock-resistant contacts 3 capable of elastic deformation are provided at the bonding end of the circuit board and the mounting surface. The shock-resistant contacts 3 themselves weaken the impact force transmitted to the circuit board, reducing the impact on the internal circuit board of the electronic device. In addition, protective guide posts 5 are installed inside the circuit board to bond and secure the electronic components 2. The protective guide posts 5 are fixed by the locking tabs 6 inside the protective guide posts 5, so that the protective guide posts 5 fix the electronic components 2 on the circuit board, enhance the stability of the electronic components 2, reduce the impact on the internal electronic components 2 of the circuit board, improve the circuit board's load-bearing capacity, and enhance the safety of the circuit board.

[0044] 2. A manually adjustable screw assembly 8 is installed inside the protective guide post 5. The position of the movable heat-conducting column 7 inside the protective guide post 5 can be adjusted through the mechanical transmission and thread transmission of the screw assembly 8, so that the protective size of the protective guide post 5 can be adjusted, which is convenient for protecting electronic components 2 of various sizes.

Claims

1. An impact-resistant circuit board, comprising a circuit board substrate (1) with a copper foil covering its surface, wherein electronic components (2) connected to the copper foil are fixedly mounted on the surface of the circuit board substrate (1), characterized in that: The bottom circumference of the circuit board substrate (1) is provided with several linear array rubber shock-resistant contacts (3). The interior of the circuit board substrate (1) is provided with several heat dissipation connection holes (4) around the electronic components (2). The heat dissipation connection holes (4) are inserted with protective guide posts (5) that fit with the electronic components (2). The interior of the protective guide posts (5) is fixedly installed with locking pieces (6) that are fastened to the circuit board substrate (1). The top of the protective guide posts (5) is provided with a movable heat-conducting post (7) that can be telescopically adjusted. The interior of the movable heat-conducting post (7) is threadedly connected with a screw assembly (8) that performs threaded transmission. The periphery of the movable heat-conducting post (7) is provided with an elastic rubber sleeve (9) installed inside the protective guide posts (5).

2. The impact-resistant circuit board as described in claim 1, characterized in that: The circuit board substrate (1) has connection holes for fixing the pins of electronic components (2) inside. The shock-resistant contact (3) is made of rubber material and is located at the end of the circuit board substrate (1) away from the electronic components (2).

3. The impact-resistant circuit board as described in claim 2, characterized in that: The heat dissipation connection hole (4) is attached to the electronic component (2) and distributed around the electronic component (2). The two ends of the heat dissipation connection hole (4) are provided with opening slots to guide the locking piece (6). One end of the protective guide post (5) is provided with a boss that penetrates the heat dissipation connection hole (4). The inside of the boss is provided with a slot to accommodate the locking piece (6). The inside of the protective guide post (5) is provided with a sliding groove to accommodate and guide the movable heat-conducting column (7).

4. The impact-resistant circuit board as described in claim 3, characterized in that: The locking piece (6) includes a fixing piece (61) with a ring platform at one end, a fastening spring (62) for support connection, and a pressing piece (63) for fastening and bonding to the circuit board substrate (1). The fixing piece (61) is rotatably connected to the inside of the boss. One end of the fixing piece (61) is fixedly installed with the fastening spring (62) located inside the boss. One end of the fastening spring (62) is fixedly installed with the pressing piece (63) housed inside the boss. The pressing piece (63) is located below the circuit board substrate (1). The thickness of the pressing piece (63) is less than the thickness of the anti-impact contact (3).

5. The impact-resistant circuit board as described in claim 4, characterized in that: Both the movable heat-conducting column (7) and the protective guide column (5) are made of heat-conducting material. One end of the movable heat-conducting column (7) is provided with a bonding platform that is flush with the end face of the protective guide column (5). The bottom of the bonding platform is fixedly installed with a telescopic rubber pad (10) that is fixedly installed with the protective guide column (5).

6. The impact-resistant circuit board as described in claim 5, characterized in that: The screw assembly (8) includes an actuating wheel (81) communicating with the outside of the protective guide post (5), a transmission wheel (82) for power transmission, and a transmission screw (83) for threaded transmission. The actuating wheel (81) is rotatably connected to the inside of the protective guide post (5). The actuating wheel (81) meshes with the transmission wheel (82). The transmission screw (83) which is rotatably connected to the protective guide post (5) is fixedly installed inside the transmission wheel (82). The transmission screw (83) is threadedly connected to the movable heat-conducting column (7). The surfaces of the actuating wheel (81) and the transmission wheel (82) are provided with meshing gears.

7. The impact-resistant circuit board as described in claim 6, characterized in that: The end of the elastic sleeve (9) away from the movable heat-conducting column (7) is fixedly installed inside the protective guide column (5), and the two ends of the elastic sleeve (9) are fixedly connected to the two ends of the bonding platform.

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