Wire-to-board connector

Abstract

This utility model relates to the technical field of connectors, and in particular to a wire-to-board connector, which includes a connector body and a printed circuit board. The connector body is provided with a mating port, and the printed circuit board is provided with an electrical connection part. The electrical connection part is adapted to be inserted and mated with the mating port. The mating port is provided with a plurality of terminals, and the electrical connection part is provided with a plurality of contacts. When the electrical connection part is inserted with the mating port, the terminals and the contacts are electrically connected. At least one side of the printed circuit board is provided with a fixing hook, and at least one side of the connector body is provided with a resilient fixing seat. The resilient fixing seat is provided with a fixing block, and the fixing hook engages with the fixing block. This utility model has the advantages of lower assembly and material costs, and the connector and printed circuit board are less likely to loosen.

Description

Technical Field

[0001] This utility model relates to the technical field of connectors, and in particular to wire-to-board connectors. Background Technology

[0002] Connectors are devices used to connect two or more devices, components, or systems to enable the transmission of signals, power, or data. They are widely used in electronics, electrical engineering, mechanics, and communications, and are one of the fundamental components of modern equipment and systems. Wire-to-board connectors are core components in electronic systems that enable electrical connections between printed circuit boards (PCBs) and external components (such as cables, other PCBs, or devices). Their performance directly affects signal integrity, mechanical stability, and system reliability.

[0003] Currently, when connecting PCBs and connectors, the PCB has an electrical connection part with terminals, and the connector has a mating port with contact pieces inside. The electrical connection part is inserted into the mating port, and the terminals and contact pieces make contact, thus achieving the connection between the PCB and the connector. However, this connection method has the problem that the PCB and the connector are prone to loosening, causing interruption of current or signal transmission.

[0004] In the existing technology, wire-to-board connectors typically require a wire-end connector and a board-end connector. The board-end connector requires at least a housing and terminals. Furthermore, the terminals of the board-end connector need to be soldered to achieve electrical and mechanical connections with the printed circuit board. The housing of the board-end connector may also require additional structures such as clips or screws to achieve mechanical connections with the printed circuit board.

[0005] The above-described wire-to-board connector has higher material and assembly costs for its board-end connector. In addition, after prolonged use, the board-end connector may become loose relative to the printed circuit board, causing unstable current or signal connections.

[0006] In conclusion, how to provide more reasonable and efficient wire-to-board connectors has become one of the urgent problems to be solved. Utility Model Content

[0007] This utility model addresses the problems of existing technologies by providing a wire-to-board connector with a more reasonable and efficient structure.

[0008] The wire-to-board connector provided by this utility model adopts the following technical solution:

[0009] A wire-to-board connector includes a connector body and a printed circuit board. The connector body has a mating port, and the printed circuit board has an electrical connection portion adapted to be inserted into the mating port. The mating port has a plurality of terminals, and the electrical connection portion has a plurality of contacts. When the electrical connection portion is inserted into the mating port, the terminals and contacts are electrically connected. At least one side of the printed circuit board has a fixing hook, and at least one side of the connector body has a resilient fixing seat with a fixing block. The fixing hook engages with the fixing block at the resilient fixing seat.

[0010] Preferably, limit blocks are provided on both opposite sides of the connector body, and limit rods are provided on the limit blocks. The limit rods are located between the fixing base and the connector body, and the limit rods abut against the fixing block.

[0011] Preferably, the limiting block is provided with a connecting hook, and the connector body is provided with a connecting slot, and the connecting hook engages with the connecting slot.

[0012] Preferably, positioning rods are provided on both opposite sides of the limiting block, and positioning grooves are provided on both opposite sides of the connector, with the positioning rods inserted into the positioning grooves.

[0013] Preferably, the connector body has multiple mounting holes on the side opposite to the socket, the mounting holes are connected to the socket, one end of the terminal passes through the mounting hole and is placed inside the socket, one side surface of the connector body has a plug hole, the plug hole is connected to the multiple mounting holes, a fixing block is inserted into the plug hole, the fixing block extends into the mounting hole, one end of the terminal away from the socket abuts against the plug block, the plug block is provided with a snap-fit ​​block, the connector body is provided with a snap-fit ​​hole, and the snap-fit ​​block engages with the snap-fit ​​hole.

[0014] Preferably, the connector body is connected to multiple wires, which are electrically connected to the terminals. Multiple isolation blocks are provided on the side of the connector body opposite to the mating port, and a fixing slot is provided between two adjacent isolation blocks. The wires are engaged with the fixing slots.

[0015] Preferably, the limiting block is provided with an elastic plug rod, the connector body is provided with a connecting slot, the elastic plug rod is inserted into the connecting slot, the end of the elastic plug rod is provided with a connecting hook, the connecting slot is provided with a stop block, and the stop block is located on the movement path of the connecting hook.

[0016] Preferably, the connector body is provided with a back cover, the back cover covers multiple wires, and locking hooks are provided at the four corners of the back cover. The connector body is provided with locking blocks, and the locking hooks engage with the locking blocks.

[0017] Preferably, the rear cover is provided with multiple through holes, and the isolation block is inserted into the through holes.

[0018] Preferably, the isolation block is provided with a fastening hook, which passes through the through hole and engages with the rear cover.

[0019] Preferably, the electrical connection portion of the printed circuit board has a plurality of contacts on one side; or, the electrical connection portion of the printed circuit board has a plurality of contacts on both sides.

[0020] In summary, this utility model includes at least the following beneficial technical effects of wire-to-board connectors:

[0021] When the electrical connector is inserted into the socket, the retaining hook simultaneously engages with the retaining block at the elastic retaining seat, thereby fixing the printed circuit board and the connector body together. Then, the sliding limit block causes the elastic limit rod and the protrusion to abut against the retaining block, making the retaining seat less prone to bending and ensuring a stable connection between the connector and the printed circuit board that is not easily loosened. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is an exploded view of the present invention.

[0024] Figure 3 This is a schematic diagram of the connector body in this utility model.

[0025] Figure 4 This is a structural schematic diagram of the connector body from another perspective in this utility model.

[0026] Figure 5 This is a schematic diagram of the limiting block in this utility model.

[0027] Figure 6 This is a schematic diagram of the structure of the back cover in this utility model.

[0028] Figure 7 This is a cross-sectional schematic diagram of the present invention.

[0029] Figure 8 This is a cross-sectional schematic diagram of the present invention.

[0030] Figure 9 This is an exploded view of the present invention.

[0031] In the diagram: 1. Connector body; 11. Socket; 12. Flexible retaining base; 121. Fixing block; 13. Connecting slot; 131. Stop block; 14. Positioning slot; 15. Isolation block; 151. Fastening hook; 16. Fixing slot; 17. Locking block; 18. Assembly hole; 19. Plug-in hole; 191. Snap-in hole; 2. Printed circuit board; 21. Electrical connection part; 211. Contact piece; 22. Fixing hook; 3. Limiting block; 31. Flexible limiting rod; 311. Protrusion; 32. Flexible insertion rod; 321. Connecting hook; 33. Positioning rod; 4. Wire; 5. Back cover; 51. Locking hook; 52. Through hole; 6. Terminal; 7. Plug-in block; 71. Snap-in block; Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] This utility model discloses a wire-to-board connector, such as... Figure 1-9As shown, the connector includes a connector body 1 and a printed circuit board 2. The connector body 1 is provided with a socket 11, and the electrical connection part 21 is provided with a plurality of terminals 6. In this embodiment, the number of terminals 6 is preferably multiple, such as eight. The connector body 1 has a plurality of mounting holes 18 on the side away from the socket. The mounting holes 18 are connected to the socket. One end of the terminal 6 moves through the mounting hole 18 and is placed in the socket. At the same time, in order to fix the terminal 6, a plug hole 19 is provided on one side surface of the connector body 1. The plug hole 19 is connected to the plurality of mounting holes 18. The connector body 1 is provided with a fixing block. The fixing block is plugged into the plug hole 19, and a part of the fixing block extends into the mounting hole 18. The end of the terminal 6 away from the socket abuts against the plug block 7. After the operator assembles the terminal 6 into the mounting hole 18, the operator inserts the plug block 7 into the plug hole 19, so that the terminal 6 abuts against the plug block 7, thereby limiting and fixing the terminal 6 in the connector body 1. Meanwhile, both ends of the plug block 7 are integrally formed with snap-fit ​​blocks 71, and snap-fit ​​holes 191 are opened on opposite sides of the connector body 1. The snap-fit ​​blocks 71 and snap-fit ​​holes 191 are engaged and matched. When the operator inserts the plug block 7 into the plug hole 19, the snap-fit ​​blocks 71 are also engaged in the snap-fit ​​holes 191, thereby fixing the plug block 7 in the plug hole 19.

[0035] Meanwhile, multiple wires 4 are connected to the connector body 1, and the number of wires 4 corresponds to the number of terminals 6. One end of the wire 4 passes through the mounting hole 18 and is electrically connected to the terminal 6 inside the connector body 1. Multiple isolation blocks 15 are integrally formed on the side of the connector body 1 away from the mating port 11. A fixing slot 16 is formed between two adjacent isolation blocks 15. The fixing slot 16 is set in an open circular shape. The wire 4 is engaged with the fixing slot 16. In this way, the wire 4 can be bent at ninety degrees and fixed in the fixing slot 16. This not only fixes the wire 4, but also meets the application scenario requirements of the terminal for vertical installation of the wire 4. In addition, the connector body 1 is provided with a rear cover 5, which covers multiple wires 4. Locking hooks 51 are integrally formed at each of the four corners of the rear cover 5. Locking blocks 17 are integrally formed on the connector body 1. The locking hooks 51 and locking blocks 17 engage with each other. After the rear cover 5 is placed over the multiple wires 4, the locking hooks 51 and locking blocks 17 are engaged to fix the rear cover 5 to the connector body 1. The rear cover 5 covers the wires 4, making it difficult for the wires 4 to fall out of the fixing slots 16. Furthermore, the rear cover 5 has multiple through holes 52, into which isolation blocks 15 are inserted. The through holes 52 accommodate and prevent the isolation blocks 15 from moving. Additionally, the end of the isolation block 15 is integrally formed with a fastening hook 151, which passes through the through holes 52 and engages with the rear cover 5. This makes the connection between the rear cover 5 and the connector body 1 more secure.

[0036] In addition, an electrical connection portion 21 is integrally formed on the printed circuit board 2, and a plurality of contacts 211 are provided on the electrical connection portion 21. It can be understood that the electrical connection portion 21 of the printed circuit board 2 has a plurality of contacts 211 on one side, or the electrical connection portion 21 of the printed circuit board 2 has a plurality of contacts 211 on both sides. In this embodiment, the number of contacts 211 is preferably multiple, which can be eight. The electrical connection portion 21 may have eight contacts 211 on only one side surface, or it may have eight contacts 211 on both sides surface. The electrical connection portion 21 is inserted into the socket 11. When the electrical connection portion 21 is inserted into the socket 11, the terminal 6 and the contacts 211 are electrically contacted, so that current can flow between the terminal 6 and the contacts 211. Meanwhile, at least one side of the printed circuit board 2 is integrally formed with a fixing hook 22. In this embodiment, both opposite sides of the printed circuit board 2 are integrally formed with fixing hooks 22. The two fixing hooks 22 are respectively located on opposite sides of the electrical connection part 21. At least one side of the connector body 1 is integrally formed with an elastic fixing seat 12. In this embodiment, both opposite sides of the connector body 1 are integrally formed with an elastic fixing seat 12. One end of the fixing seat is connected to the end of the connector body 1 near the printed circuit board 2. The elastic fixing seat 12 and the connector body 1 are inclined. The elastic fixing seat 12 is hollow. A fixing block 121 is integrally formed inside the elastic fixing seat 12. Both elastic fixing seats 12 are located between the two fixing hooks 22. The fixing hooks 22 and the fixing blocks 121 at the elastic fixing seats 12 engage with each other. When the electrical connection part 21 is inserted into the socket 11, the fixing hooks 22 are simultaneously engaged with the fixing blocks, thereby fixing the printed circuit board 2 and the connector body 1 together and making it difficult for the printed circuit board 2 and the connector to loosen.

[0037] Meanwhile, limit blocks 3 are provided on both opposite sides of the connector body 1. An elastic plug 32 is integrally formed on the limit block 3. A connecting slot 13 is provided on the connector body 1. The elastic plug 32 is inserted into the connecting slot 13. At the same time, a connecting hook 321 is integrally formed on the end of the elastic plug 32 away from the limit block 3. A stop block 131 is integrally formed in the connecting slot 13. The stop block 131 is located on the movement path of the connecting hook 321. The stop block 131 can prevent the elastic plug 32 from easily falling out of the connecting slot 13, thereby making it difficult for the limit block 3 and the connector body 1 to loosen. Meanwhile, an elastic limiting rod 31 is integrally formed on the limiting block 3. The elastic limiting rod 31 is located between the fixed seat and the connector body 1. The limiting rod abuts against the inner side of the fixed latch block 121. When the fixed hook 22 on the printed circuit board 2 is engaged with the fixed latch block 121, the limiting rod abuts against the fixed latch block 121, thus limiting the fixed seat and making it less prone to bending, thereby making the engagement between the fixed hook 22 and the fixed seat more stable. At the same time, a protrusion 311 is integrally formed on the end of the elastic limiting rod 31 away from the limiting block 3. The protrusion 311 abuts against the fixed latch block 121, and the fixed latch block 121 limits the protrusion 311, making it difficult for the elastic limiting rod 31 and the fixed latch block 121 to shift. Meanwhile, a positioning rod 33 is integrally formed on the limiting block 3, and a positioning groove 14 is provided on the connector. The positioning rod 33 is inserted into the positioning groove 14, and the positioning groove 14 can position the positioning rod 33, making the limiting block 3 less prone to shaking. When people want to unlock the printed circuit board 2, they slide the limiting block 3, causing the elastic limiting rod 31 and the protrusion 311 to disengage from the fixing block 121. At this time, people can bend the fixing seat, so that the fixing hook 22 can separate from the fixing block 121, thereby separating the printed circuit board 2 from the connector body 1.

[0038] The implementation principle of the wire-to-board connector of this utility model is as follows: During assembly, the operator assembles the terminal 6 into the assembly hole, then inserts the plug block 7 into the plug hole to fix the terminal, then inserts the wire into the fixing slot, puts on the back cover, and then inserts the elastic plug rod 32 of the limiting block into the connecting slot 13. The assembly can be completed conveniently and quickly without welding, and the material and assembly costs are lower. When in use, when the electrical connection part 21 is inserted into the plug 11, the fixing hook 22 is simultaneously engaged with the fixing block, thereby fixing the printed circuit board 2 and the connector body 1 together. Then, the limiting block 3 is slid, so that the elastic limiting rod 31 and the protrusion 311 abut against the fixing block 121, so that the fixing seat is not easily bent, and the connection between the connector and the printed circuit board is stable and not easy to loosen.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A wire-to-board connector characterized by: The connector includes a connector body (1) and a printed circuit board (2). The connector body (1) is provided with a mating port (11). The printed circuit board (2) is provided with an electrical connection part (21). The electrical connection part (21) is adapted to be inserted into the mating port (11). The mating port (11) is provided with a plurality of terminals (6). The electrical connection part (21) is provided with a plurality of contact pieces (211). When the electrical connection part (21) is inserted into the mating port (11), the terminals (6) are electrically connected to the contact pieces (211). At least one side of the printed circuit board (2) is provided with a fixing hook (22). At least one side of the connector body (1) is provided with an elastic fixing seat (12). The elastic fixing seat (12) is provided with a fixing block (121). The fixing hook (22) engages with the fixing block (121) at the elastic fixing seat (12).

2. The wafer-to-board connector according to Claim 1, characterized by: Limiting blocks (3) are provided on both sides of the connector body (1). An elastic limiting rod (31) is provided on the limiting block (3). The elastic limiting rod (31) is located between the fixing seat and the connector body (1). A protrusion (311) is provided on the elastic limiting rod (31). The limiting rod and the protrusion (311) abut against the fixing block (121).

3. The connector according to Claim 2, wherein: The limiting block (3) is provided with an elastic plug rod (32), the connector body (1) is provided with a connecting slot (13), the elastic plug rod (32) is inserted into the connecting slot (13), the end of the elastic plug rod (32) is provided with a connecting hook (321), the connecting slot (13) is provided with a stop block (131), and the stop block (131) is located on the movement path of the connecting hook (321).

4. The connector according to Claim 2, wherein: The limiting block (3) is provided with a positioning rod (33), and the connector is provided with a positioning groove (14). The positioning rod (33) is inserted into the positioning groove (14).

5. The line-to-board connector of claim 1, wherein: The connector body (1) has a plurality of mounting holes (18) on the side opposite to the socket. The mounting holes (18) are connected to the socket. One end of the terminal (6) passes through the mounting hole (18) and is placed inside the socket. One side surface of the connector body (1) has a plug hole (19) connected to the plurality of mounting holes (18). A fixing block is inserted into the plug hole (19) and extends into the mounting hole (18). One end of the terminal (6) away from the socket abuts against the plug block (7). A snap-fit ​​block (71) is provided on the plug block (7). A snap-fit ​​hole (191) is provided on the connector body (1). The snap-fit ​​block (71) engages with the snap-fit ​​hole (191).

6. The connector according to Claim 1, wherein: A plurality of wire harnesses (4) are connected to the connector body (1), and the wire harnesses (4) are electrically connected to the terminals. A plurality of isolation blocks (15) are provided on a side of the connector body facing away from the mating socket (11). A fixing card slot (16) is provided between two adjacent isolation blocks (15), and the wire harness (4) is engaged with the fixing card slot (16).

7. The connector according to Claim 6, wherein: A rear cover (5) is provided on the connector body (1), and the rear cover (5) covers the plurality of wire harnesses (4). Locking hooks (51) are provided at four corners of the rear cover (5), and a locking block (17) is provided on the connector body (1). The locking hooks (51) are engaged with the locking block (17).

8. The line-to-board connector of claim 7, wherein: A plurality of through holes (52) are provided on the rear cover (5), and the isolation blocks (15) are inserted into the through holes (52).

9. The line-to-board connector of claim 8, wherein: A fastening hook (151) is provided on the isolation block (15), and the fastening hook (151) passes through the through hole (52) and is engaged with the rear cover (5).

10. The connector according to Claim 1, wherein: On one side of the electrical connection portion (21) of the printed circuit board (2), a plurality of contact pads (211) are provided; Alternatively, on both sides of the electrical connection portion (21) of the printed circuit board (2), a plurality of contact pads (211) are provided.

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