PCB connector and connector assembly

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to a PCB connector and a connector assembly, and the connector comprises a connector main body, a PCB and a bottom plate. The front end of the connector main body is provided with a clamping assembly, and the clamping assembly comprises an opposite insertion groove and a clamping hook. The rear end of the connector main body is provided with a plurality of wire grooves in the vertical direction, and the connector main body is internally provided with connecting terminals; the PCB comprises a conductive contact piece and a clamping slot which are arranged at the rear end of a board body; the plate body is inserted into the slot, the clamping hook is connected with the clamping slot in a buckling manner, and the connecting terminal is elastically clamped and propped against the conductive contact piece; the front end of the bottom plate is provided with an accommodating concave position, the connector main body is inserted into the accommodating concave position, and the accommodating concave position is provided with a clamping jaw in the vertical direction to be connected with the connector main body in a buckling manner. According to the utility model, the stable connection between the PCB and the connector main body is realized, and the light and thin requirements of the connector assembly are met.

Description

PCB connectors and connector assemblies Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to PCB board connectors and connector assemblies. Background Technology

[0002] With the miniaturization and modularization of electronic devices, PCB connectors, as core components for circuit signal transmission, present key design challenges in terms of installation efficiency, connection stability, and prevention of mis-insertion.

[0003] Existing connectors mostly adopt an external press-type snap-fit ​​structure, which unlocks by rotating a lever arm to drive the snap hook. The external snap hook structure requires a large operating space, which increases the overall height of the connector and makes it difficult to meet the needs of thin and light connectors. In addition, the lack of guiding and multi-directional limiting design makes the connector body easy to shift during the insertion process, affecting the overall structural stability. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a connector with a PCB board to solve the problems of the external hook structure in the prior art connectors requiring a large operating space, resulting in an increase in the overall height of the connector, making it difficult to meet the needs of thin and light connectors, as well as the lack of guiding and multi-directional limiting design.

[0005] One embodiment of this utility model provides a PCB board connector, including: a connector body, a PCB board, and a base plate;

[0006] The connector body has a clamping assembly at its front end, which includes a slot and a clamping hook; the connector body has a plurality of vertical wire grooves at its rear end, and the connector body has through holes corresponding to the wire grooves inside, with connecting terminals inside the through holes;

[0007] The PCB board includes a board body and conductive contact pieces. The rear end of the board body is provided with a clamping slot, and the conductive contact pieces are disposed on both sides of the clamping slot. The board body is inserted into the slot, the clamping hook is snapped into the clamping slot, and the connecting terminal is elastically clamped and abutted against the conductive contact piece.

[0008] The base plate has a receiving recess at the front end, the connector body is inserted into the receiving recess, and the receiving recess has claws in the vertical direction that are snapped together with the connector body.

[0009] The bottom surface has a notch corresponding to the wire groove.

[0010] In one embodiment of this utility model, the clamping hook includes a first cantilever section, a second cantilever section, and a stop block. The first cantilever section extends horizontally along the connector body, and the second cantilever section is vertically bent from the end of the first cantilever section to form an L-shaped structure. The stop block is disposed on both sides of the second cantilever section.

[0011] In one embodiment of this utility model, the clamping slot has an opening on the side facing the connector body, and the width of the opening corresponds to the width of the second cantilever segment, so that the clamping hook slides into the clamping slot through the opening.

[0012] In one embodiment of this utility model, the top of the first cantilever segment is provided with a pressing protrusion; the second cantilever segment and the stop block are provided with a guide surface on the side facing the PCB board, the guide surface being an inclined surface, used to guide the clamping hook to slide into the clamping slot.

[0013] In one embodiment of this utility model, the upper surface of the rear end of the connector body is provided with a fixing groove corresponding to the claw, and the lower surface of the rear end of the connector body is provided with a fixing baffle corresponding to the claw.

[0014] In one embodiment of this utility model, guide protrusions are provided on both sides of the receiving recess, and the two guide protrusions respectively fit against the side of the connector body;

[0015] The base plate has mounting holes on both sides, and threaded connectors are installed in the mounting holes.

[0016] In one embodiment of this utility model, the connecting terminal includes a wiring segment and a clamping segment, the wiring segment is disposed in the through hole, and the clamping segment extends into the slot;

[0017] The clamping section includes an extension arm and an elastic clamping arm, with two extension arms and two elastic clamping arms. The elastic clamping arm is formed by bending the end of the extension arm inward. The distance between the two elastic clamping arms gradually decreases from the root to the end, forming a wedge-shaped clamping space. At least one of the extension arms has an elastic protrusion on its outer side, which abuts against the inner wall of the slot to form a preload to enhance the clamping pressure of the clamping section.

[0018] In one embodiment of this utility model, the PCB board connector further includes a terminal locking baffle, and the top of the connector body is provided with a mounting groove extending through the through hole, and the terminal locking baffle is embedded in the mounting groove;

[0019] The bottom of the terminal locking baffle is provided with a limiting protrusion; the connecting terminal is provided with a groove corresponding to the limiting protrusion, the limiting protrusion is accommodated inside the groove and abuts against the groove wall.

[0020] In one embodiment of this utility model, the clamping slot is located in the middle of the rear end of the plate body, and a foolproof slot is provided on one side of the clamping slot. A foolproof protrusion corresponding to the foolproof slot is provided in the slot, and the foolproof slot and the foolproof protrusion form a foolproof connection structure.

[0021] In one embodiment of this utility model, a connector assembly is also provided, including a PCB board connector as described in any of the above embodiments.

[0022] The PCB board connector and connector assembly provided by this utility model can achieve the following technical effects:

[0023] 1. The clamping hook adopts a lower-mounted snap-fit ​​structure consisting of a first cantilever section, a second cantilever section, and a stop block. This eliminates the need for a large operating space in the entire connector. Compared to externally mounted snap-fit ​​structures, this makes the connector flatter and more compact, effectively reducing the overall height of the connector and meeting the needs of electronic devices for thin and light connectors. Furthermore, the snap-fit ​​connection between the clamping hook and the clamping slot, along with the elastic clamping and abutment between the connection terminal and the conductive contact, ensures a tight and stable connection between the connector body and the PCB board, guaranteeing the reliability of circuit signal transmission.

[0024] 2. The guide protrusions on both sides of the recessed position of the base plate fit against the side of the connector body to form a lateral limit; at the same time, the claws and the fixing grooves and fixing baffles on the upper and lower surfaces of the connector body form a longitudinal lock. By forming multi-directional limit, the connector body is prevented from shifting during the insertion process, thus improving the overall structural stability.

[0025] 3. The guide surface of the clamping hook guides the PCB board to slide into the slot. Combined with the matching design of the anti-foolproof latch and anti-foolproof bump, the insertion direction is unique. In the initial stage of insertion, the offset is corrected by physical limit to avoid misalignment and damage to the connection terminal and PCB board. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 shows an exploded structural diagram of this utility model;

[0028] Figure 2 shows a schematic diagram of the structure of the base plate of this utility model;

[0029] Figure 3 shows a schematic diagram of the connection terminal of this utility model;

[0030] Figure 4 shows a top view of the structure of this utility model;

[0031] Figure 5 shows a cross-sectional view of the present invention along the direction of the arrow in Figure 4;

[0032] Figure 6 shows a schematic diagram of the connector body of this utility model;

[0033] Figure 7 shows a cross-sectional view of the present invention along the direction of the arrow in Figure 6.

[0034] The symbols in the attached image are explained as follows:

[0035] 1-Connector body; 11-Wire groove; 12-Through hole; 13-Fixing groove; 14-Fixing baffle; 15-Mounting groove;

[0036] 2-PCB board; 21-Board body; 22-Conductive contact; 23-Clamping slot; 24-Foothole prevention bayonet;

[0037] 3-Base plate; 31-Accommodation recess; 32-Claw; 33-Guide protrusion; 34-Mounting hole;

[0038] 4-Slots; 41-Fingerproof bumps;

[0039] 5-Clamping hook; 51-First cantilever section; 52-Second cantilever section; 53-Stop block; 54-Pressing protrusion;

[0040] 6-Connecting terminal; 61-Wiring section; 62-Clamping section; 621-Extension arm; 622-Elastic clamping arm; 623-Elastic tab;

[0041] 7-Terminal locking baffle; 71-Limiting protrusion. Detailed Implementation

[0042] 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.

[0043] Please refer to Figures 1-7. One embodiment of this utility model provides a PCB board connector, including: a connector body 1, a PCB board 2, and a base plate 3;

[0044] The connector body 1 has a clamping assembly at its front end, which includes a slot 4 and a clamping hook 5; the connector body 1 has a plurality of vertical wire grooves 11 at its rear end, and the connector body 1 has through holes 12 corresponding to the wire grooves 11 inside, with a connection terminal 6 inside the through holes 12.

[0045] The PCB board 2 includes a board body 21 and conductive contact pieces 22. The rear end of the board body 21 is provided with a clamping slot 23, and the conductive contact pieces 22 are disposed on both sides of the clamping slot 23. The board body 21 is inserted into the slot 4, the clamping hook 5 is snapped into the clamping slot 23, and the connecting terminal 6 is elastically clamped and abutted against the conductive contact pieces 22.

[0046] The base plate 3 has a receiving recess 31 at its front end. The connector body 1 is inserted into the receiving recess 31, and the receiving recess 31 has claws 32 in the vertical direction to snap into the connector body 1.

[0047] Understandably, this embodiment can be used to achieve stable assembly and reliable electrical connection: during use, it includes clamping connection, electrical connection and base plate connection. Before use, the base plate connection includes inserting the connector body 1 into the receiving recess 31 at the front end of the base plate 3. The claws 32 in the vertical direction of the receiving recess 31 will be snapped together with the fixing groove 13 and fixing baffle 14 at the rear end of the connector body 1, further enhancing the fixing effect of the connector body 1 and ensuring the overall stability of the connector assembly.

[0048] During clamping connection, the board body 21 of PCB board 2 is inserted into the slot 4 at the front end of connector body 1. At this time, the clamping hook 5 in the clamping assembly will be connected with the clamping slot 23 at the rear end of the board body 21 of PCB board 2. Through the interaction between the clamping hook 5 and the clamping slot 23, a stable connection between PCB board 2 and connector body 1 is achieved.

[0049] After the PCB board 2 is inserted into the slot 4, during electrical connection, the connecting terminal 6 in the through hole 12 inside the connector body 1 will elastically clamp and abut against the conductive contact 22 on the PCB board 2, thereby establishing an electrical connection path between the PCB board 2 and the wire harness in the wire groove 11 on the connector body 1, realizing the transmission of signals and current, and having the characteristic of anti-vibration displacement; the base plate 3 is provided with a notch corresponding to the wire groove 11. When the connecting terminal 6 with the wire harness is assembled into the through hole, the wire harness is snapped into the wire groove 11, so that the wire harness is bent and fixed in the connector body 1; and when the connector body 1 is inserted into the base plate 3, the end of the wire groove 11 is inserted into the notch located above the receiving recess 31. The base plate 3 further restricts the displacement space of the wire harness in the wire groove 11, making the connection between the wire harness and the connector more firm and reliable.

[0050] In this embodiment, the clamping hook 5 adopts a bottom-mounted snap-fit ​​structure, which eliminates the need for a large operating space in the entire connector. Compared with the external structure of the snap-fit ​​hook, the connector is flatter and more compact, effectively reducing the overall height of the connector and meeting the needs of electronic devices for thin and light connectors. The snap-fit ​​connection between the clamping hook 5 and the clamping slot 23, and the elastic clamping and abutting between the connecting terminal 6 and the conductive contact 22, make the connection between the connector body 1 and the PCB board 2 tight and stable, ensuring the reliability of circuit signal transmission.

[0051] Referring to Figures 6 and 7, in one embodiment of this utility model, the clamping hook 5 includes a first cantilever section 51, a second cantilever section 52, and a stop block 53. The first cantilever section 51 extends horizontally along the connector body 1, and the second cantilever section 52 is vertically bent from the end of the first cantilever section 51 to form an L-shaped structure. The stop block 53 is disposed on both sides of the second cantilever section 52.

[0052] Understandably, the clamping hook 5 adopts a bottom-mounted cantilever buckle structure, including: a first cantilever section 51 extending horizontally from the bottom of the connector body 1, a second cantilever section 52 extending downward from the end of the first cantilever section 51, and a stop block 53 located at the end of the second cantilever section 52. The above structure achieves elastic deformation in the vertical direction through the double cantilever design, and forms a self-locking mechanism with the stop block 53 and the limiting surface of the clamping slot 23, ensuring buckle strength while meeting the flat design requirements of the connector.

[0053] Referring to Figures 1-7, in one embodiment of this utility model, the clamping slot 23 has an opening on the side facing the connector body 1, and the width of the opening corresponds to the width of the second cantilever section 52, so that the clamping hook 5 can slide into the clamping slot 23 through the opening.

[0054] Understandably, the matching of the opening width with the width of the second cantilever section 52 ensures precise alignment between the clamping hook 5 and the clamping slot 23; and simplifies the assembly process of the PCB board 2 and the connector body 1, so that during installation, the clamping hook 5 can smoothly slide into the clamping slot 23 without complicated alignment and adjustment operations, thus improving assembly efficiency; at the same time, when the clamping hook 5 slides into the clamping slot 23, it forms a tight snap-fit ​​connection with the clamping slot 23, preventing the PCB board 2 from loosening or falling off due to external forces during use.

[0055] In this embodiment, the lower snap-fit ​​structure does not require a large operating space, making the entire connector flatter and more compact, which meets the requirements of modern electronic devices for miniaturization and thinness, and can achieve reliable connection function in a limited space.

[0056] Referring to Figures 6 and 7, in one embodiment of this utility model, the top of the first cantilever segment 51 is provided with a pressing protrusion 54; the second cantilever segment 52 and the stop block 53 are provided with a guide surface on the side facing the PCB board 2, the guide surface being an inclined surface, used to guide the clamping hook 5 to slide into the clamping slot 23.

[0057] Understandably, the pressing protrusion 54 in this embodiment provides a clear point of force application, facilitating the pressing operation of the clamping hook 5 during installation or disassembly, reducing operational difficulty and improving the convenience of assembly and disassembly. Furthermore, the inclined design of the guide surface effectively guides the clamping hook 5 into the clamping slot 23. Even with slight alignment deviations during insertion, the inclined guide surface automatically adjusts the insertion angle of the clamping hook 5, ensuring its smooth entry into the clamping slot 23, thus improving the accuracy and reliability of the connection.

[0058] In one embodiment of the present invention, the upper surface of the rear end of the connector body 1 is provided with a fixing groove 13 corresponding to the claw 32, and the lower surface of the rear end of the connector body 1 is provided with a fixing baffle 14 corresponding to the claw 32.

[0059] Understandably, by providing a fixing groove 13 and a fixing baffle 14 on the upper and lower surfaces of the rear end of the connector body 1 respectively, which form a tight fit with the claw 32 on the base plate 3, the connection stability between the connector body 1 and the base plate 3 is further enhanced, preventing the connector from loosening or shifting due to external force during use.

[0060] Therefore, in this embodiment, the fixing groove 13 and the fixing baffle 14 enable the claw 32 to more firmly hold the connector body 1, ensuring that the connection between the connector body 1 and the base plate 3 remains reliable during long-term use, and reducing the risk of signal transmission interruption or equipment failure due to loose connection.

[0061] Referring to Figure 2, in one embodiment of this utility model, guide protrusions 33 are provided on both sides of the receiving recess 31, and the two guide protrusions 33 respectively fit against the side of the connector body 1.

[0062] The base plate 3 has mounting holes 34 on both sides, and threaded connectors are provided in the mounting holes 34.

[0063] Understandably, the guide protrusions 33 on both sides of the recess 31 of the base plate 3 fit against the side of the connector body 1 to form a lateral limit; at the same time, the claw 32 forms a longitudinal lock with the fixing groove 13 and fixing baffle 14 on the upper and lower surfaces of the connector body 1, thereby preventing the connector body 1 from shifting during the insertion process by forming multi-directional limit, thus improving the overall structural stability; and the mounting hole 34 and threaded connector are used to fix the base plate 3 to other structures, thereby enhancing the stability of the entire assembly.

[0064] Referring to Figure 3, in one embodiment of this utility model, the connecting terminal 6 includes a wiring segment 61 and a clamping segment 62. The wiring segment 61 is disposed in the through hole 12, and the clamping segment 62 extends into the slot 4.

[0065] The clamping section 62 includes an extension arm 621 and an elastic clamping arm 622. There are two extension arms 621 and two elastic clamping arms 622. The elastic clamping arm 622 is formed by bending the end of the extension arm 621 inward. The distance between the two elastic clamping arms 622 gradually decreases from the root to the end, forming a wedge-shaped clamping space. At least one of the extension arms 621 has an elastic protrusion 623 on its outer side. The elastic protrusion 623 abuts against the inner wall of the slot 4 to form a preload to enhance the clamping pressure of the clamping section 62.

[0066] Understandably, the elastic clamping arm 622 forms a wedge-shaped clamping space, and the spacing of this space gradually decreases from the root to the end, which ensures that when the conductive contact 22 is inserted, the elastic clamping arm 622 is compressed, thereby generating a large clamping force, effectively preventing the conductive contact 22 from loosening during use and ensuring the stability of the connection; and the elastic protrusion 623 abuts against the inner wall of the slot 4 to form a pre-tightening force, which can prevent the clamping section 62 from loosening after being inserted into the slot 4, further enhancing the stability of the connection, especially under equipment vibration or external force.

[0067] Please refer to Figures 1-7. In one embodiment of this utility model, the PCB board connector further includes a terminal locking baffle 7, and the top of the connector body 1 is also provided with a mounting groove 15 that extends through the through hole 12. The terminal locking baffle 7 is embedded in the mounting groove 15.

[0068] The terminal locking baffle 7 has a limiting protrusion 71 at its bottom; the connecting terminal 6 has a groove corresponding to the limiting protrusion 71, the limiting protrusion 71 is accommodated inside the groove and abuts against the groove wall.

[0069] Understandably, the terminal locking baffle 7 is used to prevent the connection terminal 6 from shifting. Specifically, the limiting protrusion 71 of the terminal locking baffle 7 cooperates with the groove on the connection terminal 6. Specifically, the groove is set between the wiring section 61 and the clamping section 62, which effectively prevents the connection terminal 6 from shifting or loosening in the through hole 12. When the equipment vibrates or is subjected to external impact, it ensures that the connection terminal 6 always maintains good contact with the conductive contact 22, preventing poor contact or signal transmission interruption caused by the displacement of the connection terminal 6, and improving the overall reliability and stability of the connector.

[0070] Furthermore, to facilitate the installation and fixation of the connecting terminal 6, the terminal locking baffle 7 is embedded in the mounting groove 15 on the top of the connector body 1, making the installation of the connecting terminal 6 easier. When installing the connecting terminal 6, it can be directly inserted into the through hole 12 and then fixed by the terminal locking baffle 7.

[0071] In one embodiment of the present invention, the clamping slot 23 is located in the middle of the rear end of the plate 21, and a foolproof slot 24 is provided on one side of the clamping slot 23. A foolproof protrusion 41 corresponding to the foolproof slot 24 is provided in the slot 4, and the foolproof slot 24 and the foolproof protrusion 41 form a foolproof connection structure.

[0072] Understandably, the guide surface of the clamping hook 5 guides the PCB board 2 to slide into the slot 4. Combined with the matching design of the anti-foolproof latch 24 and the anti-foolproof bump 41, the insertion direction is unique. In the early stage of insertion, the offset is corrected by physical limiting, avoiding misalignment and damage to the connection terminal 6 and the PCB board 2.

[0073] In one embodiment of the present invention, a connector assembly is also provided, including a PCB board connector as described in any of the above embodiments.

[0074] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A PCB connector, characterized in that, include: The connector body comprises a connector body, a PCB board, and a base plate. The connector body has a clamping assembly at its front end, including a slot and a clamping hook. The connector body has several vertically oriented wire grooves at its rear end, and through holes corresponding to these wire grooves are located inside the connector body, with connecting terminals within these through holes. The PCB board includes a board body and conductive contacts. The board body has a clamping slot at its rear end, with the conductive contacts positioned on both sides of the clamping slot. The board body is inserted into the slot, and the clamping hooks are snap-fitted into the clamping slot. The connecting terminals are elastically clamped and abutted against the conductive contacts. The base plate has a receiving recess at its front end, into which the connector body is inserted. The receiving recess has claws in the vertical direction that snap-fit ​​into the connector body. The base plate has notches corresponding to the wire grooves.

2. The PCB connector as described in claim 1, characterized in that, The clamping hook includes a first cantilever section, a second cantilever section, and a stop. The first cantilever section extends horizontally along the connector body, and the second cantilever section is vertically bent from the end of the first cantilever section to form an L-shaped structure. The stop is disposed on both sides of the second cantilever section.

3. The PCB connector as described in claim 2, characterized in that, The clamping slot has an opening on the side facing the connector body, and the width of the opening corresponds to the width of the second cantilever section, so that the clamping hook can slide into the clamping slot through the opening.

4. The PCB connector as described in claim 3, characterized in that, The top of the first cantilever section is provided with a pressing protrusion; the second cantilever section and the stop block are provided with a guide surface on the side facing the PCB board, the guide surface is an inclined surface, which is used to guide the clamping hook to slide into the clamping slot.

5. The PCB connector as described in claim 1, characterized in that, The upper surface of the rear end of the connector body is provided with a fixing groove corresponding to the claw, and the lower surface of the rear end of the connector body is provided with a fixing baffle corresponding to the claw.

6. The PCB connector as described in claim 5, characterized in that, The accommodating recess has guide protrusions on both sides, and the two guide protrusions respectively fit against the side of the connector body; the base plate has mounting holes on both sides, and threaded connectors are provided in the mounting holes.

7. The PCB connector as described in claim 1, characterized in that, The connection terminal includes a wiring segment and a clamping segment. The wiring segment is disposed in the through hole, and the clamping segment extends into the slot. The clamping segment includes an extension arm and an elastic clamping arm. Two extension arms and two elastic clamping arms are provided. The elastic clamping arm is formed by bending the end of the extension arm inward. The distance between the two elastic clamping arms gradually decreases from the root to the end, forming a wedge-shaped clamping space. At least one of the extension arms has an elastic protrusion on its outer side. The elastic protrusion abuts against the inner wall of the slot to form a preload to enhance the clamping pressure of the clamping segment.

8. The PCB connector as described in any one of claims 1-7, characterized in that, The PCB connector also includes a terminal locking baffle. The top of the connector body is provided with a mounting groove that extends through the through hole. The terminal locking baffle is embedded in the mounting groove. The bottom of the terminal locking baffle is provided with a limiting protrusion. The connecting terminal is provided with a groove corresponding to the limiting protrusion. The limiting protrusion is accommodated inside the groove and abuts against the groove wall.

9. The PCB connector as described in claim 8, characterized in that, The clamping slot is located in the middle of the rear end of the plate. A foolproof slot is also provided on one side of the clamping slot. A foolproof protrusion corresponding to the foolproof slot is provided in the slot.

10. A connector assembly, characterized in that, Includes the PCB connector as described in any one of claims 1-9.

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