Plate-type connector and circuit board connecting structure

Abstract

The utility model discloses a plate-type connector and circuit board connecting structure, a functional assembly is fixedly connected with a main circuit board through a main connecting piece, and the functional assembly comprises a functional circuit board, and a plate-type connector and a reinforcing connecting plate which are located at the front and back sides of the functional circuit board. The conductive terminals on one side of the plate-type connector are in contact conduction with the conductive contacts on the front face of the functional circuit board, the conductive terminals on the other side of the plate-type connector can be in contact conduction with the front face of the main circuit board, and at least one first receding hole and at least one connecting hole are formed in the insulating main body portion of the functional circuit board and the insulating main body portion of the plate-type connector respectively. A connecting column fixed on one side of the reinforcing connecting plate is inserted into the first receding hole and the connecting hole, and a radial outwards-protruding stopping piece at the end of the connecting column is stopped on the surface of the other side of the plate-type connector and contained in a containing hole in the main circuit board, the plate-type connector is high in overall structural strength and stable in signal transmission, a functional circuit board is convenient to improve and upgrade, and the service life of the plate-type connector is prolonged. The transformation cost is saved.

Description

Technical Field

[0001] The utility model relates to a connection structure of a connector, in particular to a connection structure of a plate-type connector and a circuit board. Background Art

[0002] As electronic products become thinner and lighter, thin and light compression adapter plate connectors have emerged. This type of connector is extremely thin and can achieve rapid electrical connection and communication between two contact planes. This type of connector is mainly composed of a sheet-shaped insulating main body and elastic conductive terminals distributed on the insulating main body. The two ends of the elastic conductive terminals elastically extend to both sides of the thickness direction of the insulating main body, and are used to make point-to-point contact with the functional circuit boards on both sides, so as to connect the upper and lower functional circuit boards. When this type of thin and light compression adapter plate connector is connected to the functional circuit board, an adhesive layer is generally used to bond and fix the insulating main bodies of the two. On the one hand, this fixing method has poor firmness, and the glue between the two is easy to come apart after long-term use, resulting in a circuit break. On the other hand, this bonding method cannot be disassembled, and it is impossible to replace the functional circuit board when it is improved, resulting in a large waste. Utility Model Content

[0003] In order to make up for the above deficiencies, the utility model provides a plate connector and circuit board connection structure, which can quickly connect the plate connector and the functional circuit board, with a firm connection, stable communication, and can also be disassembled and updated.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a board connector and circuit board connection structure, including a main circuit board, a functional component and a main connecting piece, the functional component is detachably fixedly connected to the main circuit board through the main connecting piece, the functional component includes a functional circuit board and a board connector, the board connector is flatly attached to the front side of the functional circuit board with a circuit, the conductive terminals on one side of the board connector are closely contacted and conducted with the conductive contacts on the front side of the functional circuit board, the conductive terminals on the other side of the board connector can be closely contacted and conducted with the conductive contacts on the front side of the main circuit board with the circuit, the functional component also includes a reinforcement A board connecting plate, at least one connecting column is fixedly provided on one side of the reinforcement plate connecting plate, a radially outward stopper is formed at the end of the connecting column, at least one first avoidance hole is provided on the functional circuit board, and at least one connecting hole is provided on the insulating main body of the board connector, the reinforcement plate connecting plate covers the back of the functional circuit board, the connecting columns on the reinforcement plate connecting plate are inserted into the first avoidance hole on the functional circuit board and the connecting holes on the board connector one by one, and the radially outward stopper at the end of the connecting column on the reinforcement plate connecting plate stops on the surface of the insulating main body on the other side of the board connector, and the main circuit board is provided with an accommodating hole for accommodating the end of the connecting column and the radially outward stopper thereon.

[0005] As a further improvement of the present invention, the radially outwardly protruding stopper at the end of the connecting column is a barb structure whose radial dimension toward the root of the connecting column is larger than the radial dimension toward the end of the connecting column.

[0006] As a further improvement of the present invention, the connecting column is a hollow cylinder, and the radially outwardly protruding stopper is an elastically bent cantilever formed by tearing and bending the side wall of the hollow cylinder.

[0007] As a further improvement of the present invention, a plurality of radially outwardly protruding stoppers are evenly spaced and distributed outside the circumference of the connecting column.

[0008] As a further improvement of the present utility model, a first limiting column and a second limiting column are respectively provided on the two side walls opposite to the functional circuit board and the main circuit board, a first limiting hole is provided on the functional circuit board, a second limiting hole is provided on the main circuit board, and a second avoidance hole is provided on the reinforcement plate connecting plate. The first limiting column is inserted into the first limiting hole to realize radial limiting of the plate connector and the functional circuit board, the end of the first limiting column can be completely accommodated in the second avoidance hole, and the second limiting column can be inserted into the second limiting hole to realize radial limiting of the plate connector and the main circuit board.

[0009] As a further improvement of the utility model, the two connecting columns are distributed at two diagonal positions of the reinforcement plate connecting plate, the two second avoidance holes are distributed at the other two diagonal positions of the reinforcement plate connecting plate, the corresponding first connecting holes on the plate connector are located at the two diagonal positions, the two first limit columns and the second limit columns are coaxially located at the other two diagonal positions, the two first avoidance holes on the functional circuit board are located at the two diagonal positions, and the two first limit holes are located at the other two diagonal positions.

[0010] As a further improvement of the utility model, at least one through-hole structure is provided on the reinforcement plate connecting plate, the insulating main body of the functional circuit board, the insulating main body of the plate connector and the insulating main body of the main circuit board, and the main connecting part includes a connecting screw and a connecting nut. The connecting screw is passed through each of the through-hole structures, and the connecting screw is threadedly connected to the connecting nut. The head of the connecting screw is tightly against the surface of the reinforcement plate connecting plate, and the connecting nut is tightly against the surface of the insulating body on the back of the main circuit board.

[0011] As a further improvement of the utility model, the main circuit board includes a circuit main board and a CPU circuit board. The circuit main board and the CPU circuit board can be aligned and spliced ​​on the same plane, and the insulating main body of the circuit main board and the CPU circuit board are both provided with via structures.

[0012] The beneficial technical effect of the utility model is as follows: the utility model provides a reinforcing plate connecting plate flatly attached to the back of the functional circuit board, and provides a connecting column with a radially convex stopper on the reinforcing plate connecting plate, and the functional circuit board and the board connector are fixedly connected together by inserting the connecting column into the first avoidance hole of the functional circuit board and the connecting hole of the board connector and blocking the surface of the board connector through the radially convex stopper thereon, and the radially convex stopper on the connecting column is designed to be an elastic structure, which realizes the rapid assembly and positioning of the functional circuit board and the board connector, and the positioning is firm, and the board connector and the functional circuit board will not be disengaged during long-term use, and the board connector and the functional circuit board will not be disengaged. The functional circuit board can also be disassembled and replaced according to the needs of maintenance and upgrading, which reduces the waste of parts and reduces the cost of upgrading. The reinforcement plate of the present application can also reinforce the strength of the functional circuit board, so that the entire connection structure will not warp during long-term use, effectively ensuring the connection strength and stability of use. The present application also sets a first limit column and a second limit column on the plate connector to respectively limit the plugging with the functional circuit board and the main circuit board, thereby ensuring the stable electrical connection between the conductive terminals on the plate connector and the functional circuit board and the main circuit board. The overall structural strength of the present application is high, the signal transmission is stable, it is convenient for the improvement and upgrading of the functional circuit board, and saves the cost of transformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is a three-dimensional exploded view of the utility model;

[0015] Figure 3 This is an exploded view of the functional components of the utility model;

[0016] Figure 4 It is a three-dimensional diagram of the functional components of the utility model;

[0017] Figure 5 for Figure 4 Middle AA section view;

[0018] Figure 6 for Figure 5 Enlarged view of middle part B;

[0019] Figure 7 It is a first stereoscopic view of the reinforcing plate connecting plate;

[0020] Figure 8 It is a second stereoscopic view of the reinforcing plate connecting plate;

[0021] Fig. 9 This is the third stereoscopic view of the reinforcing plate connecting plate. DETAILED DESCRIPTION

[0022] Embodiment: A board connector and circuit board connection structure, including a main circuit board 1, a functional component 2 and a main connecting piece, the functional component 2 is detachably fixedly connected to the main circuit board 1 through the main connecting piece, the functional component 2 includes a functional circuit board 21 and a board connector 22, the board connector 22 is flatly attached to the front side of the functional circuit board 21 with a circuit, the conductive terminals on one side of the board connector 22 are closely contacted and conducted with the conductive contacts on the front side of the functional circuit board 21, and the conductive terminals on the other side of the board connector 22 can be closely contacted and conducted with the conductive contacts on the front side of the main circuit board 1 with a circuit, the functional component 2 also includes a reinforcement board connecting plate 23, one side of which is fixedly provided with at least one connecting column 231, a radially outward stopper 232 is formed at the end of the connecting column 231, at least one first avoidance hole 211 is provided on the functional circuit board 21, and at least one connecting hole 221 is provided on the insulating main body of the board connector 22, the reinforcing plate connecting plate 23 covers the back of the functional circuit board 21, the connecting columns 231 on the reinforcing plate connecting plate 23 are inserted into the first avoidance hole 211 on the functional circuit board 21 and the connecting holes 221 on the board connector 22 one by one, and the radially outward stopper 232 at the end of the connecting column 231 on the reinforcing plate connecting plate 23 stops on the surface of the insulating main body on the other side of the board connector 22, and the main circuit board 1 is provided with an accommodating hole 11 for accommodating the end of the connecting column 231 and the radially outward stopper 232 thereon.

[0023] When in use, the reinforcing plate connecting plate 23, the functional circuit board 21 and the plate connector 22 are sequentially fitted together, the connecting column 231 on the reinforcing plate connecting plate 23 is sequentially fitted with the first avoidance hole 211 on the functional circuit board 21 and the connecting hole 221 of the plate connector 22, and the radially protruding stopper 232 at the end of the connecting column 231 is stopped on the surface of the insulating main body on the other side of the plate connector 22. In this way, the reinforcing plate connecting plate 23, the functional circuit board and the plate connector 22 are fixedly connected to form a functional component 2 with an integrated structure. When the functional component 2 needs to be connected to the main circuit board 1 for functional expansion, it is only necessary to connect the functional component 2 to the main circuit board 1 through the main connecting piece, and use the The conductive terminals on the plate connector 22 connect the main circuit board 1 and the functional circuit board 21 to form a pathway. The reinforcement plate connecting plate 23 of the functional component 2 covers the back of the functional circuit board 21, which can protect the functional circuit board 21 and increase the strength of the overall functional component 2 to prevent the functional component 2 from warping and deformation. The connecting column 231 at the upper end of the reinforcement plate connecting plate 23 also fixes the functional circuit board 21 and the plate connector 22 together. This connection method ensures that the functional circuit board 21 and the plate connector 22 are stably connected and will not separate during long-term use, thereby ensuring that the functional circuit board 21 of the functional component 2 and the plate connector 22 maintain a stable electrical conduction state for a long time.

[0024] The radially outward stopper 232 at the end of the connecting column 231 is a barb structure with a radial dimension toward the root of the connecting column 231 being larger than the radial dimension toward the end of the connecting column 231. The radially outward stopper 232 on the connecting column 231 adopts a barb structure, which facilitates assembly and ensures the stability of the connection.

[0025] The connecting column 231 is a hollow cylinder, and the radially protruding stopper 232 is an elastically bent cantilever formed by tearing and bending the side wall of the hollow cylinder. The above structure enables the radially protruding stopper 232 to have radial elastic deformation ability. During assembly, the elastically bent cantilever first contacts the edge of the first avoidance hole 211 of the functional mainboard. After the elastically bent cantilever is subjected to the pressure of the edge of the first avoidance hole 211, the elastically bent cantilever is elastically deformed and elastically moves toward the inside of the first avoidance hole 211. After the elastically bent cantilever leaves the connecting hole 221 of the board connector 22, the elastically bent cantilever automatically elastically resets, and the elastically bent cantilever is then reset and blocked on the other side surface of the board connector 22, thereby realizing the fixed snap-fit ​​connection between the functional circuit board 21 and the board connector 22. The above structure enables the radially protruding stopper 232 to have a certain elastic deformation ability in the radial direction, so that the board connector 22 and the functional circuit board 21 can be disassembled. When the board connector 22 is damaged or the functional circuit board 21 is upgraded and improved, the two can be disassembled and replaced to avoid waste. In addition to adopting the above-mentioned elastic structure, the radially protruding stopper 232 can also be a T-shaped integrated structure made of elastic material, or an elastic pin elastically installed radially on the connecting column 231. Such structures are equivalent replacement structures that can be easily thought of by technical personnel in this field based on the present application, and they all fall within the scope of protection of the present application.

[0026] The plurality of radially outwardly protruding stoppers 232 are evenly spaced and distributed outside the circumference of the connecting column 231. The number of the radially outwardly protruding stoppers 232 of the elastically bent cantilever structure may be two, three, four, or more.

[0027] The board connector 22 is also provided with a first limiting column 222 and a second limiting column 223 on the two side walls opposite to the functional circuit board 21 and the main circuit board 1, respectively; the functional circuit board 21 is provided with a first limiting hole 212, the main circuit board 1 is provided with a second limiting hole 12, and the reinforcement plate connecting plate 23 is provided with a second avoidance hole 233; the first limiting column 222 is inserted into the first limiting hole 212 to realize radial limiting of the board connector 22 and the functional circuit board 21; the end of the first limiting column 222 can be completely accommodated in the second avoidance hole 233; the second limiting column 223 can be inserted into the second limiting hole 12 to realize radial limiting of the board connector 22 and the main circuit board 1.

[0028] During assembly, the first limiting column 222 and the first limiting hole 212 are plugged together to achieve precise radial positioning of the board connector 22 and the functional circuit board 21, ensuring that the conductive terminals on one side of the board connector 22 are in direct contact and conduction with the conductive contacts on the functional circuit board 21, thereby ensuring signal stability between the two. The second limiting column 223 and the second limiting hole 12 are plugged together to achieve precise radial positioning of the board connector 22 and the main circuit board 1, ensuring that the conductive terminals on the other side of the board connector 22 are in direct contact and conduction with the conductive contacts on the main circuit board 1, thereby ensuring signal stability between the two.

[0029] The two connecting columns 231 are distributed at two diagonal positions of the reinforcement plate connecting plate 23, and the two second avoidance holes 233 are distributed at the other two diagonal positions of the reinforcement plate connecting plate 23. The corresponding first connecting hole 221 on the plate connector 22 is located at two diagonal positions, and the two first limiting columns 222 and the second limiting columns 223 are coaxially located at the other two diagonal positions. The two first avoidance holes 211 on the functional circuit board 21 are located at two diagonal positions, and the two first limiting holes 212 are located at the other two diagonal positions.

[0030] At least one through-hole structure 3 is provided on the reinforcing plate connecting plate, the insulating main body of the functional circuit board 21, the insulating main body of the plate connector 22, and the insulating main body of the main circuit board 1. The main connecting member includes a connecting screw 4 and a connecting nut 5. The connecting screw 4 is inserted into each of the through-hole structures 3. The connecting screw 4 is threadedly connected with the connecting nut 5. The head of the connecting screw 4 is tightly against the surface of the reinforcing plate connecting plate 23, and the connecting nut 5 is tightly against the insulating main body surface on the back of the main circuit board 1. The functional component 2 is fixedly connected to the main circuit board 1 by the connecting screw 4 and the connecting nut 5. The connection is firm, stable, and easy to disassemble. In addition, they can also be fixedly connected by a snap-on structure or other connecting structures.

[0031] The main circuit board 1 includes a main circuit board 13 and a CPU circuit board 14. The main circuit board 13 and the CPU circuit board 14 can be aligned and spliced ​​on the same plane, and the insulating main body of the main circuit board 13 and the CPU circuit board 14 is provided with a via structure 3. The functional component 2 can be electrically connected to the main circuit board 13 and the CPU circuit board 14 at the same time, and the main circuit board 13 and the CPU circuit board 14 are fixed and positioned as a whole.

Claims

1. A board connector and circuit board connection structure, comprising a main circuit board (1), a functional component (2) and a main connecting member, wherein the functional component is detachably fixedly connected to the main circuit board via the main connecting member, wherein the functional component comprises a functional circuit board (21) and a board connector (22), wherein the board connector is flatly attached to the front side of the functional circuit board on which a circuit is provided, wherein the conductive terminals on one side of the board connector are closely connected to the conductive contacts on the front side of the functional circuit board in a one-to-one manner, and wherein the conductive terminals on the other side of the board connector are closely connected to the conductive contacts on the front side of the main circuit board in a one-to-one manner, wherein the conductive terminals are closely connected to the conductive contacts on the front side of the main circuit board in a one-to-one manner, wherein the conductive terminals are closely connected to the conductive contacts on the front side of the main circuit board in a one-to-one manner, and ... The functional component also includes a reinforcing plate connecting plate (23), at least one connecting column (231) is fixedly provided on one side of the reinforcing plate connecting plate, a radially outwardly protruding stopper (232) is formed on the end of the connecting column, at least one first avoidance hole (211) is provided on the functional circuit board, and at least one connecting hole (221) is provided on the insulating main body of the plate connector, the reinforcing plate connecting plate covers the back of the functional circuit board, the connecting columns on the reinforcing plate connecting plate are inserted into the first avoidance hole on the functional circuit board and the connecting hole on the plate connector in a one-to-one correspondence, and the radially outwardly protruding stopper at the end of the connecting column on the reinforcing plate connecting plate stops on the surface of the insulating main body on the other side of the plate connector, and a receiving hole (11) is provided on the main circuit board for receiving the end of the connecting column and the radially outwardly protruding stopper thereon.

2. The board-type connector and circuit board connection structure according to claim 1, characterized in that: The radially outwardly protruding stopper at the end of the connecting column is a barb structure whose radial dimension toward the root of the connecting column is larger than the radial dimension toward the end of the connecting column.

3. The board-type connector and circuit board connection structure according to claim 2, characterized in that: The connecting column is a hollow cylinder, and the radially outwardly protruding stopper is an elastically bent cantilever formed by tearing and bending the side wall of the hollow cylinder.

4. The board-type connector and circuit board connection structure according to claim 2 or 3, characterized in that: The plurality of radially outwardly protruding stoppers are evenly spaced and distributed outside the circumference of the connecting column.

5. The board-type connector and circuit board connection structure according to claim 1, characterized in that: The board connector is also provided with a first limiting column (222) and a second limiting column (223) on two side walls opposite to the functional circuit board and the main circuit board, respectively; the functional circuit board is provided with a first limiting hole (212); the main circuit board is provided with a second limiting hole (12); the reinforcing plate connecting plate is provided with a second avoidance hole (233); the first limiting column is inserted into the first limiting hole to realize radial limiting of the board connector and the functional circuit board; the end of the first limiting column can be completely accommodated in the second avoidance hole; the second limiting column can be inserted into the second limiting hole to realize radial limiting of the board connector and the main circuit board.

6. The board-type connector and circuit board connection structure according to claim 5, characterized in that: The two connecting columns are distributed at two diagonal positions of the reinforcement plate connecting plate, the two second avoidance holes are distributed at the other two diagonal positions of the reinforcement plate connecting plate, the corresponding first connecting holes on the plate connector are located at two diagonal positions, the two first limiting columns and the second limiting columns are coaxially located at the other two diagonal positions, the two first avoidance holes on the functional circuit board are located at two diagonal positions, and the two first limiting holes are located at the other two diagonal positions.

7. The board-type connector and circuit board connection structure according to claim 1, characterized in that: The reinforcing plate connecting plate, the insulating main body of the functional circuit board, the insulating main body of the plate connector and the insulating main body of the main circuit board are each provided with at least one via structure (3) in a one-to-one correspondence, and the main connecting member comprises a connecting screw (4) and a connecting nut (5), wherein the connecting screw is passed through each of the via structures, the connecting screw is threadedly connected to the connecting nut, the connecting screw head is tightly against the surface of the reinforcing plate connecting plate, and the connecting nut is tightly against the surface of the insulating main body on the back of the main circuit board.

8. The board-type connector and circuit board connection structure according to claim 7, characterized in that: The main circuit board comprises a main circuit board (13) and a CPU circuit board (14). The main circuit board and the CPU circuit board can be aligned and spliced ​​on the same plane. The insulating main bodies of the main circuit board and the CPU circuit board are both provided with via structures.

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