Circuit board

Abstract

The circuit board comprises a circuit board body, a flexible conductive assembly and an electrostatic discharge assembly, the circuit board body comprises a main board and an auxiliary board, the main board is provided with an integration area and a first conduction area, the integration area is used for installing a first electronic component set, the first conduction area is provided with a first conduction interface, and the first conduction interface is used for installing a second electronic component set. The auxiliary board comprises a second conduction area, and the second conduction area is provided with a second conduction interface. The main board and the auxiliary board are movably connected through the flexible conductive assembly, the main board and the auxiliary board are combined to form an integral circuit board, the main board is used for placing a first electronic component group, and the auxiliary board is used for discharging static electricity, so that the static electricity can be received from the auxiliary board, and then flows through a transmission structure position to be mostly discharged. The influence of a small part of static electricity on the first electronic component group is small, so that the overall operation is protected, and the damage of the static electricity to the first electronic component group is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board protection technical field, especially a kind of circuit board. BACKGROUND

[0002] Static electricity is extremely harmful to the circuit board inside electronic equipment and components on the circuit board, such as voltage, current anomaly, signal interference, etc. These faults may cause various problems in electronic products, affect the performance and reliability of the product, and even damage the components, causing the circuit board to short circuit. For static protection, most of the protection methods now mainly have three kinds: the first is to drill more ground vias on the circuit board, so that the static energy is discharged through the ground. The second is to increase a shielding cover for the chip or main control chip that is easily disturbed, to isolate the static energy in space radiation. The third is to add static protection devices to the signal to reduce the influence of static electricity on the signal. The above protection methods have limited protection performance for some components on the static discharge path. Since static electricity flows through the static discharge path, some components located on the static discharge path will be gradually damaged, which easily leads to the overall damage of the circuit board. In the traditional technology, the circuit board is mostly a board that centrally places components and lays ground copper, which is not convenient for making multiple boards that cooperate with each other, thereby dispersing the position setting of components and the discharge of static electricity. SUMMARY

[0003] Therefore, the utility model aims to provide a circuit board that can combine two circuit boards into one circuit board while using one of the circuit boards as a static discharge.

[0004] The utility model provides a kind of circuit board, comprising: circuit board, flexible conductive component and static electricity discharge component, the circuit board includes mainboard and vice board, the mainboard is equipped with integrated area and first conduction area, the integrated area is used to install first electronic component group, the first conduction area is equipped with first conduction interface, the vice board includes second conduction area, the second conduction area is equipped with second conduction interface;The flexible conductive component movably connects the mainboard with the vice board, wherein the flexible conductive component is flexible circuit board;The circuit board is equipped with conduction form, under the conduction form, the first conduction interface of the mainboard is electrically connected with the second conductive interface, forms loop;The static electricity discharge component includes gold finger connector and conduction structure, the gold finger connector is fixedly installed on the vice board, for receiving static electricity, the gold finger connector is electrically connected with the ground copper layer of the vice board, the conduction structure is fixedly connected on the side of the vice board, and is connected with the ground copper layer, for outputting static electricity;The static electricity discharge path of the static electricity discharge component is the gold finger connector, the ground copper layer and the conduction structure, by combining mainboard and vice board to form integrated circuit board, wherein after first conduction interface and second conduction interface are connected to cooperate flexible conductive component to connect mainboard and vice board to form loop, mainboard is used to place first electronic component group, and vice board is used to discharge static electricity, so that static electricity can be received from vice board, then most of static electricity is discharged through conduction structure position, and the influence of small part of static electricity on first electronic component group is less, so that the overall operation is protected, and the harm of static electricity to first electronic component group is avoided.

[0005] In one embodiment, the conduction structure includes: a first lead-out member and a second lead-out member, the first lead-out member is fixedly connected to the side of the vice board and connected with the ground copper layer; the second lead-out member is fixedly connected to the end of the first lead-out member away from the vice board, and the static electricity discharge sequence of the conduction structure is from the first lead-out member to the second lead-out member, wherein the first lead-out member is a flexible circuit board or a rigid circuit board, and the first lead-out member is located on the side of the vice board away from the flexible conductive component, the second lead-out member is used as the output end of static electricity discharge, and the second lead-out member is connected to the side of the vice board through the first lead-out member, so that static electricity can be quickly discharged, and the length of the static electricity discharge path is determined by the position of the second lead-out member, wherein the gold finger connector and the second lead-out member are located at the two ends of the vice board to form the most complete static electricity discharge path, the distance between the gold finger connector and the second lead-out member gradually shortens, and the static electricity discharge speed gradually increases, that is, the length of the distance between the gold finger connector and the second lead-out member is proportional to the speed of static electricity discharge.

[0006] In one embodiment, the first conduction interface and the second conduction interface are respectively the socket and the pin or the pin and the socket of a board-to-board connector.

[0007] In one embodiment, the copper layer is a plurality of layers of copper, the gold finger connector and the conductive structure are respectively electrically connected with at least one of the layers of copper, and in the scheme, nine layers of copper are laid, the copper is laid in multiple layers as a whole copper layer, and the arrangement of all electronic components on the circuit board is ensured.

[0008] In one embodiment, a second electronic component group is mounted on the sub-board, the second electronic component group is located at the periphery of the static electricity discharge path, and the anti-static voltage grade of the second electronic component group is greater than that of the first electronic component group.

[0009] In one embodiment, the adapter assembly comprises at least one screw seat and at least one connecting port, each screw seat is fixedly installed on the sub-board, each connecting port is formed on the main board and opposite to each screw seat, and at least one screw passes through each connecting port and is threadedly connected with each screw seat.

[0010] In one embodiment, a plurality of ground holes are formed on the main board, the sub-board and the second lead-out piece.

[0011] Therefore, the utility model has the following advantages compared with the prior art:

[0012] 1. According to the circuit board, the main board and the sub-board are combined to form a whole circuit board, the main board is used to place the first electronic component group, the sub-board is used to discharge static electricity, and then static electricity is received from the sub-board, and then flows through the conductive structure position and is discharged, and the influence of a small amount of static electricity on the first electronic component group is small, so that the whole operation is protected, and the harm of static electricity to the first electronic component group is avoided.

[0013] 2. The circuit board according to the utility model relates to, through utilizing the second export piece as the output end of static electricity discharge, and connecting the second export piece through the first export piece on the side surface of the subboard, so that static electricity can be discharged quickly, the position of the second export piece determines the length of the static electricity discharge path, wherein the gold finger connector and the second export piece are respectively located at both ends of the subboard as the most complete path of static electricity discharge, the distance between the gold finger connector and the second export piece gradually shortens, and the static electricity discharge speed gradually increases, that is, the length of the distance between the gold finger connector and the second export piece is proportional to the speed of the static electricity discharge amount.

[0014] 3. The circuit board according to the utility model relates to, in the scheme, copper is laid 9 layers, through the laying of multiple layers of copper as an overall copper layer, the arrangement of the number of all electronic components of the circuit board 10 is ensured, the second electronic component group with a larger antistatic voltage grade is arranged on the subboard and located at the periphery of the static electricity discharge path, that is, arranged away from the static electricity discharge path, the influence of static electricity flowing through the second electronic component on the static electricity discharge path is reduced, the number of electronic components in the first electronic component group on the mainboard is reduced, and the electronic components can be placed more reasonably.

[0015] 4. The circuit board according to the utility model relates to, through arranging two screw seats on the two sides of the first conduction interface respectively, the first conduction interface can be more fastened when connecting the second conduction interface, and the problem of loosening due to long use is avoided. DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the circuit board in the embodiment;

[0017] Figure 2 It is a schematic diagram of the structure of the static electricity discharge path in the circuit board of the embodiment;

[0018] Figure 3 It is a schematic diagram of the conduction form structure of the circuit board in the embodiment;

[0019] Figure 4 It is a schematic diagram of the structure of the second embodiment in the circuit board.

[0020] REFERENCE NUMERALS:

[0021] 10, circuit board; 101, mainboard; 1011, integrated area; 1012, first conduction area; 102, subboard; 1021, second conduction area; 100, first conduction interface; 200, second conduction interface; 103, flexible conductive assembly;

[0022] 11, static electricity discharge assembly; 111, gold finger connector; 112, conduction structure; 1121, first export piece; 1122, second export piece;

[0023] 13, adapter assembly; 131, screw seat; 132, connecting port; 133, screw. DETAILED DESCRIPTION

[0024] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners according to other embodiments, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0027] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0029] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0030] Referring to Figures 1-3 The utility model discloses a kind of circuit boards, comprising: circuit board 10, flexible conductive component 103 and static electricity discharge component 11, circuit board 10 includes main plate 101 and vice plate 102, main plate 101 is equipped with integrated area 1011 and first conduction area 1012, integrated area 1011 is used to install first electronic component group, first conduction area 1012 is equipped with first conduction interface 100, vice plate 102 includes second conduction area 1021, second conduction area 1021 is equipped with second conduction interface 200;Flexible conductive component 103 movably connects main plate 101 and vice plate 102, wherein flexible conductive component 103 is flexible circuit board;Circuit board 10 is equipped with conduction mode, under conduction mode, the first conduction interface 100 of main plate 101 and second electrically connected interface are connected, and loop is formed;Static electricity discharge component 11 includes gold finger connector 111 and conduction structure 112, gold finger connector 111 is fixedly installed on vice plate 102, for receiving static electricity, gold finger connector 111 is electrically connected with the ground copper layer of vice plate 102, conduction structure 112 is fixedly connected on the side of vice plate 102, and is connected with ground copper layer, for outputting static electricity;The static electricity discharge path of static electricity discharge component 11 is gold finger connector 111, ground copper layer and conduction structure 112.

[0031] It can be understood that the main board 101 and the auxiliary board 102 are combined to form the overall circuit board 10, wherein the main board 101 is used to place the first electronic component group, and the auxiliary board 102 is used to discharge static electricity, so that static electricity can be received from the auxiliary board 102, then flows through the transmission structure to the position and is mostly discharged, and the influence of the small part of static electricity on the first electronic component group is small, thereby protecting the overall operation and avoiding the harm of static electricity to the first electronic component group.

[0032] It is worth mentioning that the first conduction area 1012 of the main board 101 can be understood as the area where the first conduction interface 100 is arranged, and the other areas of the main board 101 except the first conduction area 1012 can be understood as the integrated area 1011.

[0033] Similarly, the second conduction area 1021 of the auxiliary board 102 can be understood as the area where the second conduction interface 200 is arranged, wherein when the second component group is arranged, the second component group is arranged on the auxiliary board 102 outside the second conduction area 1021.

[0034] In combination Figures 1-3 As shown, the transmission structure 112 includes a first discharge member 1121 and a second discharge member 1122, the first discharge member 1121 is fixedly connected to the side of the auxiliary board 102 and connected with the ground copper layer, and the second discharge member 1122 is fixedly connected to one end of the first discharge member 1121 away from the auxiliary board 102. The static electricity discharge sequence of the transmission structure 112 is from the first discharge member 1121 to the second discharge member 1122, and the first discharge member 1121 is a flexible circuit board or a rigid circuit board, wherein the first discharge member 1121 is located on the side of the auxiliary board 102 away from the flexible conductive assembly 103.

[0035] It can be understood that by using the second discharge member 1122 as the output end of static electricity discharge, and connecting the second discharge member 1122 to the side of the auxiliary board 102 through the first discharge member 1121, the static electricity can be quickly discharged, and the position of the second discharge member 1122 determines the length of the static electricity discharge path, wherein the gold finger connector 111 and the second discharge member 1122 are respectively located at both ends of the auxiliary board 102 to form the most complete path for static electricity discharge, the distance between the gold finger connector 111 and the second discharge member 1122 gradually shortens, and the static electricity discharge speed gradually increases, that is, the length of the distance between the gold finger connector 111 and the second discharge member 1122 is proportional to the speed of the static electricity discharge amount.

[0036] In combination Figures 1-3 As shown, the first conduction interface 100 and the second conduction interface 200 are respectively the socket and the pin or the pin and the socket of the board-to-board connector.

[0037] Combination Figures 1-3 As shown, the ground copper layer consists of several layers of copper stacked together, and the gold finger connector 111 and the conductive structure 112 are electrically connected to at least one layer of copper, respectively.

[0038] Understandably, this solution uses nine layers of copper to form a unified ground copper layer, ensuring the proper arrangement of all electronic components on the circuit board.

[0039] Combination Figures 1-3 A second electronic component group is installed on the sub-board 102. The second electronic component group is located outside the electrostatic discharge path. The antistatic voltage level of the second electronic component group is greater than that of the first electronic component group. The electrostatic voltage is proportional to the antistatic voltage level, that is, the higher the electrostatic voltage, the higher the antistatic voltage level.

[0040] Understandably, by placing the second electronic component group with a higher anti-static voltage level on the sub-board 102 and located on the periphery of the electrostatic discharge path, the number of electronic components in the first electronic component group on the main board 101 can be reduced, allowing for a more reasonable placement of electronic components.

[0041] Combination Figures 1-3 As shown, it also includes a connecting assembly 13, which includes: at least one screw seat 131 and at least one connection port 132; each screw seat 131 is fixedly mounted on the sub-plate 102; each connection port 132 is opened on the main plate 101 and is positioned opposite to each screw seat 131; at least one screw 133, each screw 133 passes through each connection port 132 and is threaded into each screw seat 131.

[0042] Understandably, this solution includes two screw seats 131, two connectors 132, and two screws 133. The two screw seats 131 are located on both sides of the first conductive interface 100. By setting the two screw seats 131 on both sides of the first conductive interface 100, the connection between the first conductive interface 100 and the second conductive interface 200 can be made more secure, avoiding the problem of loosening due to prolonged use.

[0043] Combination Figures 1-3 As shown, there are several grounding vias, all of which are respectively opened on the main board 101, the sub-board 102, and the second output component 1122; at least one grounding via is opened on the main board 101, the sub-board 102, and the second output component 1122.

[0044] The working principle of the circuit board is that after the first conductive interface 100 and the second conductive interface 200 are buckled, the main board 101 and the auxiliary board 102 form an integral circuit board, the flexible conductive assembly 103 is in a bent state and can still conduct electricity, static electricity is guided from the gold finger connector 111, flows through the ground copper layer to the first lead-out piece 1121, and finally flows out from the second lead-out piece 1122, wherein during buckling, the screw 133 passes through the connecting port 132 and is threadedly connected with the screw seat 131 to be fastened.

[0045] Referring to Figure 4 The second embodiment of the present application is different from the first embodiment in that the main board 101 and the auxiliary board 102 are connected by two first conductive interfaces 100 and two second conductive interfaces 200, wherein one first conductive interface 100 and one second conductive interface 200 are respectively arranged on the two ends of the main board 101, and the other first conductive interface 100 and the other second conductive interface 200 are respectively arranged on the two ends of the auxiliary board 102.

[0046] The working principle of the circuit board is that after the first conductive interface 100 and the second conductive interface 200 are buckled, the main board 101 and the auxiliary board 102 form an integral circuit board, the flexible conductive assembly 103 is in a bent state and can still conduct electricity, static electricity is guided from the gold finger connector 111, flows through the ground copper layer to the first lead-out piece 1121, and finally flows out from the second lead-out piece 1122, wherein during buckling, the screw 133 passes through the connecting port 132 and is threadedly connected with the screw seat 131 to be fastened.

[0047] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0048] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A circuit board, characterized in that, the circuit board (10) comprises a main board (101) and a sub-board (102), the main board (101) is provided with an integrated area (1011) and a first conduction area (1012), the integrated area (1011) is used for mounting a first electronic component group, the first conduction area (1012) is provided with a first conduction interface (100), the sub-board (102) comprises a second conduction area (1021), the second conduction area (1021) is provided with a second conduction interface (200); a flexible conductive assembly (103) movably connects the main board (101) and the sub-board (102); the first conduction interface (100) of the main board (101) is electrically connected with the second conduction interface (200) to form a loop; and an electrostatic discharge assembly (11) comprising a gold finger connector (111) and a conductive structure (112), the gold finger connector (111) is fixedly installed on the sub-board (102) and used for receiving static electricity, the gold finger connector (111) is electrically connected with a ground copper layer of the sub-board (102), and the conductive structure (112) is fixedly connected to a side surface of the sub-board (102) and connected with the ground copper layer and used for outputting static electricity.

2. The circuit board of claim 1, wherein the conductive structure (112) comprises: a first discharge member (1121) fixedly connected to the side surface of the sub-board (102) and connected with the ground copper layer; and a second discharge member (1122) fixedly connected to one end of the first discharge member (1121) away from the sub-board (102).

3. The circuit board of claim 2, wherein, An electrostatic discharge path of the electrostatic discharge assembly (11) is the gold finger connector (111), the ground copper layer, the first discharge member (1121) and the second discharge member (1122).

4. The circuit board of claim 3, wherein The first discharge member (1121) is a flexible circuit board or a rigid circuit board.

5. The circuit board of claim 1, wherein The first conduction interface (100) and the second conduction interface (200) are a socket and a pin matched with each other.

6. The circuit board according to any one of claims 1 to 5, characterized in that, The ground copper layer is a plurality of copper layers stacked and laid, and the gold finger connector (111) and the conductive structure (112) are respectively electrically connected with at least one of the copper layers.

7. The circuit board of claim 3, wherein The sub-board (102) is provided with a second electronic component group, and the second electronic component group is located at the periphery of the electrostatic discharge path.

8. The circuit board of claim 7, wherein, The antistatic voltage grade of the second electronic component group is greater than that of the first electronic component group.

9. The circuit board of claim 1, wherein, The circuit board further comprises a connecting assembly (13) comprising: at least one screw seat (131), each screw seat (131) is fixedly installed on the sub-board (102); and at least one connecting port (132), each connecting port (132) is formed on the main board (101) and opposite to each screw seat (131). At least one screw, each of the screws passing through each of the connecting ports (132) and threadedly engaging each of the screw seats (131).

10. The circuit board of claim 2, wherein, Also comprising a plurality of ground holes, all of the ground holes being respectively formed on the main plate (101), the auxiliary plate (102) and the second lead-out member (1122). At least one ground hole is formed on each of the main plate (101), the auxiliary plate (102) and the second lead-out member (1122).

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