A new structure of direct insertion BTB female seat connector

Abstract

The utility model provides a novel structure straight insertion BTB female seat connector, include: insulating body, conductive terminal and metal fixed foot, insulating body is long strip, is equipped with at least two rows of terminal containing groove and the insertion part, and the insertion hole peripheral of insertion part is equipped with the guide inclined plane, the conductive terminal contains contact part, connecting part and paster soldering leg, and the contact part is formed double elastic arm through the stamping and is opened the seam, and its clamping contact area is equipped with the inner convex contact point, and the connecting part is equipped with the positioning stop portion and the lock portion, and the paster soldering leg welding surface is uniform to the orientation and is in neat arrangement, the insulating body downside is equipped with the insertion direction structure and the positioning post, and the metal fixed foot is through the buckle structure and insulating body joint, and its welding fixed position and paster soldering leg are used for with circuit board fixed. This connector is through double elastic arm clamping, accurate direction assembly, double fixed positioning design, promotes the contact reliability, assembly efficiency and mechanical stability, reduces the contact resistance and insertion force deviation, is applicable to high density integrated electronic equipment.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a novel direct-insertion BTB female connector. Background Technology

[0002] Board-to-board (BTB) connectors are core components in electronic devices that enable signal and power transmission between circuit boards. They are widely used in consumer electronics such as smartphones, tablets, and wearable devices, as well as in communication equipment and industrial control equipment. With the rapid development of electronic devices towards thinner, lighter, more densely integrated, and more reliable designs, BTB connectors face multiple stringent requirements for structural design: they must meet the demands of miniaturization and narrow-pitch installation, ensure contact stability and low contact resistance during mating and unmating, while also considering assembly efficiency, mechanical fixation reliability, and fatigue resistance after long-term use.

[0003] The shortcomings of existing technology: 1. Poor contact reliability; 2. Low terminal assembly efficiency; 3. The terminals are not securely fixed; Therefore, existing technologies have shortcomings and need further improvement. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a novel direct-insertion BTB female connector.

[0005] To achieve the above objectives, the specific solution of this utility model is as follows: This utility model provides a novel direct-insertion BTB female connector, comprising: An insulating body and a plurality of conductive terminals disposed within the insulating body; The insulating body is elongated and has a plug-in portion for direct mating with a BTB male connector. The plug-in portion has a plurality of plug holes arranged along the length of the connector. The insulating body is provided with terminal receiving slots that correspond one-to-one with the plug holes, and the terminal receiving slots are divided into at least two parallel rows. Each of the conductive terminals includes a contact portion, a connecting portion, and a soldering foot. The contact portion is located in the corresponding insertion hole and is used for electrical connection with the mating conductor of the BTB male connector. The soldering foot extends from the underside of the insulating body to be soldered and fixed to the circuit board. The contact portion is formed by stamping and cutting metal sheet, and a slotted structure extending along the insertion and extraction direction is formed in the contact portion to form a first elastic arm and a second elastic arm that are arranged opposite to each other. The free ends of the first elastic arm and the second elastic arm face each other to form a clamping contact area.

[0006] Furthermore, the lower side of the insulating body is provided with an insertion guide structure extending along the length direction of the connector for each row of terminal receiving slots, so that the same row of conductive terminals can be simultaneously inserted into their respective terminal receiving slots from bottom to top along the same insertion direction.

[0007] Furthermore, each of the conductive terminals has a positioning stop and a locking part at its connection portion; The terminal receiving groove is provided with a supporting step that cooperates with the positioning stop and a locking groove that cooperates with the locking part, so as to axially limit the conductive terminal and prevent the conductive terminal from falling out of the terminal receiving groove.

[0008] Furthermore, the soldering foot is a surface mount soldering foot formed by bending the connecting portion. The soldering surfaces of the surface mount soldering feet face the same side and are arranged along the length of the connector to form a surface mount soldering structure corresponding to the circuit board pads.

[0009] Furthermore, the connector also includes metal fixing feet disposed at both ends of the insulating body. The metal fixing feet include a retaining part and a welding fixing position. The retaining part is embedded in a fixing groove at the end of the insulating body, and the welding fixing position extends out from the underside of the insulating body to be welded and fixed to the circuit board.

[0010] Furthermore, a positioning post is provided on the lower side of the insulating body for positioning in conjunction with the positioning hole on the circuit board, so as to limit the relative displacement between the insulating body and the circuit board.

[0011] Furthermore, the retaining part of the metal fixing foot is provided with a snap-fit ​​structure; The fixing groove of the insulating body is provided with a snap-fit ​​part that cooperates with the snap-fit ​​structure to achieve the snap-fit ​​and fixation of the metal fixing foot on the insulating body.

[0012] Furthermore, the insertion portion of the insulating body has a guide slope around the insertion hole to guide the insertion of the BTB male connector and reduce insertion force deviation.

[0013] Furthermore, the first elastic arm and the second elastic arm are provided with convex contact points at the clamping contact area. The convex contact points are formed by local convexity to increase contact pressure and reduce contact resistance.

[0014] The technical solution of this utility model has the following beneficial effects: 1. Improve contact reliability and signal transmission performance 2. Improve assembly efficiency and product consistency 3. Enhance mechanical stability and positioning accuracy 4. Optimize the plugging and unplugging experience and extend product lifespan. Attached Figure Description

[0015] Figure 1This is a three-dimensional representation of the present invention. Figure 1 ; Figure 2 This is a three-dimensional representation of the present invention. Figure 2 ; Figure 3 This is a three-dimensional representation of the present invention. Figure 3 ; Figure 4 This is a three-dimensional representation of the present invention. Figure 4 ; Figure 5 This is an exploded view of this utility model; Figure 6 This is a three-dimensional representation of the insulating body of this utility model. Figure 1 ; Figure 7 This is a three-dimensional representation of the insulating body of this utility model. Figure 2 ; Figure 8 This is a three-dimensional representation of the insulating body of this utility model. Figure 3 ; Figure 9 This is a perspective view of the metal fixing foot of this utility model; Figure 10 This is a three-dimensional conductive terminal of the present invention. Figure 1 ; Figure 11 This is a three-dimensional conductive terminal of the present invention. Figure 2 ; Attached image captions: 1. Insulating body; 2. Conductive terminal; 3. Insertion part; 4. Insertion hole; 5. Terminal receiving groove; 6. Contact part; 7. Connecting part; 8. Welding foot; 9. Slit structure; 10. First elastic arm; 11. Second elastic arm; 12. Locking part; 13. Metal fixing foot; 14. Holding part; 15. Welding fixing position; 16. Fixing groove; 17. Positioning post; 18. Inwardly protruding contact point. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0017] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this embodiment, the terms "upper," "lower," "front," "rear," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0020] Combination Figures 1 to 11 As shown, this utility model provides a novel direct-insertion BTB female connector, comprising: an insulating body 1 and a plurality of conductive terminals 2 disposed within the insulating body 1; The insulating body 1 is elongated and has a plug-in portion 3 for direct insertion with a BTB male connector. The plug-in portion 3 is provided with a plurality of plug-in holes 4 arranged along the length of the connector. The plug-in holes 4 are arranged in two rows. The insulating body 1 is provided with terminal receiving grooves 5 that correspond one-to-one with the plug-in holes 4. The terminal receiving grooves 5 are divided into at least two parallel rows. Each of the conductive terminals 2 includes a contact portion 6, a connecting portion 7, and a soldering foot 8. The contact portion 6 is located in the corresponding insertion hole 4 and is used for electrical connection with the mating conductor of the BTB male connector. The soldering foot 8 extends from the lower side of the insulating body 1 to be soldered and fixed to the circuit board. The contact portion 6 is formed by stamping and cutting metal sheet, and a slotted structure 9 extending along the insertion and extraction direction is formed in the contact portion 6 to form a first elastic arm 10 and a second elastic arm 11 arranged opposite to each other. The free ends of the first elastic arm 10 and the second elastic arm 11 form a clamping contact area facing each other.

[0021] The lower side of the insulating body 1 is provided with an insertion guide structure extending along the length direction of the connector for each row of terminal receiving slots 5, so that the conductive terminals 2 of the same row can be inserted into their respective terminal receiving slots 5 synchronously from bottom to top along the same insertion direction.

[0022] Each of the conductive terminals 2 has a positioning stop and a locking part 12 in its connecting portion 7; The terminal receiving groove 5 is provided with a supporting step that cooperates with the positioning stop and a locking groove that cooperates with the locking part 12, so as to axially limit the conductive terminal 2 and prevent the conductive terminal 2 from coming out of the terminal receiving groove 5.

[0023] The soldering foot 8 is a surface mount soldering foot formed by bending the connecting part 7. The soldering surfaces of the surface mount soldering feet face the same side and are arranged along the length of the connector to form a surface mount soldering structure corresponding to the circuit board pads.

[0024] The connector also includes metal fixing feet 13 disposed at both ends of the insulating body 1. The metal fixing feet 13 include a retaining part 14 and a welding fixing position 15. The retaining part 14 is embedded in the fixing groove 16 at the end of the insulating body 1, and the welding fixing position 15 extends out from the lower side of the insulating body 1 to be welded and fixed to the circuit board.

[0025] The insulating body 1 is provided with a positioning post 17 on its lower side, which is used to cooperate with the positioning hole on the circuit board for positioning, so as to limit the relative displacement between the insulating body 1 and the circuit board.

[0026] The holding part 14 of the metal fixing foot 13 is provided with a buckle structure; The fixing groove 16 of the insulating body 1 is provided with a snap-fit ​​part that cooperates with the snap-fit ​​structure to realize the snap-fit ​​and fixation of the metal fixing foot 13 on the insulating body 1.

[0027] The insertion part 3 of the insulating body 1 has a guide slope around the insertion hole 4 to guide the insertion of the BTB male connector and reduce the insertion force deviation.

[0028] The first elastic arm 10 and the second elastic arm 11 are provided with an inner convex contact point 18 at the clamping contact area. The inner convex contact point 18 is formed by local convexity to increase the contact pressure and reduce the contact resistance.

[0029] The principle of this utility model is as follows: This utility model of a direct-insertion BTB female connector achieves its function through the coordinated structural design of core components such as the insulating body 1, conductive terminals 2, and metal fixing feet 13, based on the core logic of "precise assembly, reliable fixing, stable docking, and efficient transmission". The specific working principle is as follows: 1. Component assembly positioning principle Assembly of conductive terminals 2: On the lower side of the insulating body 1, a insertion guide structure extending along the length direction is provided for each row of terminal receiving slots 5. During assembly, the conductive terminals 2 of the same row are simultaneously inserted into their respective terminal receiving slots 5 from bottom to top along the guide structure. The guide structure ensures that the terminal insertion direction is consistent and the position is accurate, avoiding misalignment or improper installation. At the same time, the positioning stop of the connecting part 7 of the conductive terminal 2 fits with the supporting step in the terminal receiving slot 5 to achieve axial limitation. The locking part 12 engages with the locking groove to form an anti-dislodgement fixation, so that the conductive terminal 2 can be firmly locked in the insulating body 1 without additional fixation after being inserted into place, ensuring the consistency and stability of terminal assembly.

[0030] Metal fixing foot 13 assembly: The holding part 14 of the metal fixing foot 13 is embedded in the fixing groove 16 at the end of the insulating body 1. The metal fixing foot 13 and the insulating body 1 are quickly locked together by the snap-fit ​​structure of the holding part 14 and the snap-fit ​​part of the fixing groove 16. The assembly is convenient and the connection is reliable, avoiding falling off or shifting during the assembly process.

[0031] 2. Fixing and positioning principle with the circuit board Precise positioning: When the connector is assembled onto the circuit board, the positioning post 17 on the lower side of the insulating body 1 is first inserted into the corresponding positioning hole of the circuit board. Through the gap fit between the positioning post 17 and the positioning hole, the relative displacement between the insulating body 1 and the circuit board in the plane is precisely limited, ensuring that the soldering pin 8 and the metal fixing pin 13 of the connector are precisely aligned with the solder pads on the circuit board.

[0032] Double fixing: After positioning, the surface mount solder pads 8 of the conductive terminal 2 (with soldering surfaces facing the same side and neatly arranged along the length) are bonded to the corresponding pads on the circuit board to form an electrical connection and preliminary mechanical fixing; at the same time, the soldering fixing position 15 of the metal fixing foot 13 is soldered to the edge pads of the circuit board to further strengthen the mechanical connection strength between the connector and the circuit board. Combined with the limiting effect of the positioning post 17, a double fixing structure of "positioning welding" is formed, which effectively resists the external force during equipment vibration or insertion and removal, and prevents the connector from loosening, shifting or falling off.

[0033] 3. Plug-in / plug-out connection and electrical transmission principle with BTB male connector Insertion and removal guidance: When the BTB male connector and female connector are mated, the guide slope of the insertion part 3 of the insulating body 1 plays a guiding role, guiding the mating conductor of the male connector to accurately align with the insertion hole 4, avoiding insertion deviation; at the same time, the guide slope disperses the insertion force through the inclined structure, reduces the insertion force deviation, reduces the rigid collision between the male connector and the terminal contact part 6, and achieves smooth insertion and removal.

[0034] Elastic clamping and reliable contact: After the male connector is inserted into the plug hole 4, the first elastic arm 10 and the second elastic arm 11 of the contact part 6 of the conductive terminal 2 are squeezed, so that the two elastic arms are slightly opened to both sides. The elastic restoring force of the elastic arms forms a bidirectional clamping force on the connector. In conjunction with the inner convex contact point 18 (partially convex) of the clamping contact area, the contact pressure is further increased, ensuring that the connector and the elastic arm are tightly fitted, effectively reducing the contact resistance and avoiding poor contact.

[0035] Electrical signal / power transmission: The conductive terminal 2 forms an electrical connection with the BTB male connector conductor through the contact part 6, and then conducts the signal to the soldering pin 8 through the connection part 7. The soldering pin 8 is soldered to the circuit board pad, and finally forms a complete electrical transmission path of "BTB male connector → conductive terminal 2 contact part 6 → connection part 7 → soldering pin 8 → circuit board", realizing efficient signal or power transmission between the circuit board and external components (through the BTB male connector).

[0036] 4. Principle of ensuring long-term stability Fatigue resistance and contact reliability assurance: The contact part 6 of the conductive terminal 2 adopts a double elastic arm 10 11 structure with a slotted structure 9 formed by stamping metal sheet. The elastic deformation range of the elastic arm 10 11 is reasonable, with strong fatigue resistance, and can maintain a stable clamping force even after long-term insertion and removal. The design of the inner convex contact point 18 reduces the contact area while increasing the contact pressure, which reduces the contact resistance and reduces the impact of oxide layer on contact performance, ensuring the stability of signal transmission during long-term use.

[0037] Mechanical protection principle: The snap-fit ​​and holding of the metal fixing foot 13 and the insulating body 1, the positioning and matching of the positioning post 17 and the circuit board, and the double welding fixing structure together resist the influence of equipment vibration, impact or insertion and removal external force on the connector, prevent relative displacement of components such as the insulating body 1, conductive terminal 2, and metal fixing foot 13, ensure the stability of the overall structure, and extend the service life of the product.

[0038] In summary, this utility model achieves a complete workflow of "precise assembly of components → positioning and fixing with the circuit board → smooth insertion and disconnection with the male connector → efficient and stable electrical transmission" through the structural coordination of each component. At the same time, through designs such as elastic clamping, double fixing, and guiding protection, it ensures the comprehensive advantages of the connector in terms of assembly efficiency, docking reliability, mechanical stability, and long-term performance.

[0039] 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 protection scope of the present utility model.

Claims

1. A novel direct-insertion BTB female connector, characterized in that, include: An insulating body and a plurality of conductive terminals disposed within the insulating body; The insulating body is elongated and has a plug-in portion for direct mating with a BTB male connector. The plug-in portion has a plurality of plug holes arranged along the length of the connector. The insulating body is provided with terminal receiving slots that correspond one-to-one with the plug holes, and the terminal receiving slots are divided into at least two parallel rows. Each of the conductive terminals includes a contact portion, a connecting portion, and a soldering foot. The contact portion is located in the corresponding insertion hole and is used for electrical connection with the mating conductor of the BTB male connector. The soldering foot extends from the underside of the insulating body to be soldered and fixed to the circuit board. The contact portion is formed by stamping and cutting metal sheet, and a slotted structure extending along the insertion and extraction direction is formed in the contact portion to form a first elastic arm and a second elastic arm that are arranged opposite to each other. The free ends of the first elastic arm and the second elastic arm face each other to form a clamping contact area.

2. The connector according to claim 1, characterized in that: The lower side of the insulating body is provided with an insertion guide structure extending along the length direction of the connector for each row of terminal receiving slots, so that the same row of conductive terminals can be inserted into their respective terminal receiving slots synchronously from bottom to top along the same insertion direction.

3. The connector according to claim 1, characterized in that: Each of the conductive terminals has a positioning stop and a locking part at its connection portion; The terminal receiving groove is provided with a supporting step that cooperates with the positioning stop and a locking groove that cooperates with the locking part, so as to axially limit the conductive terminal and prevent the conductive terminal from falling out of the terminal receiving groove.

4. The connector according to claim 1, characterized in that: The soldering feet are surface mount soldering feet formed by bending the connecting portion. The soldering surfaces of the surface mount soldering feet face the same side and are arranged along the length of the connector to form a mounting soldering structure corresponding to the circuit board pads.

5. The connector according to claim 1, characterized in that: The connector also includes metal fixing feet disposed at both ends of the insulating body. The metal fixing feet include a retaining part and a welding fixing position. The retaining part is embedded in the fixing groove at the end of the insulating body, and the welding fixing position extends out of the underside of the insulating body to be welded and fixed to the circuit board.

6. The connector according to claim 5, characterized in that: The lower side of the insulating body is provided with a positioning post, which is used to cooperate with the positioning hole on the circuit board for positioning, so as to limit the relative displacement between the insulating body and the circuit board.

7. The connector according to claim 6, characterized in that: The retaining part of the metal fixing foot is provided with a buckle structure; The fixing groove of the insulating body is provided with a snap-fit ​​part that cooperates with the snap-fit ​​structure to achieve the snap-fit ​​and fixation of the metal fixing foot on the insulating body.

8. The connector according to claim 1, characterized in that: The insertion portion of the insulating body has a guide slope around the insertion hole to guide the insertion of the BTB male connector and reduce insertion force deviation.

9. The connector according to claim 1, characterized in that: The first elastic arm and the second elastic arm are provided with convex contact points in the clamping contact area. The convex contact points are formed by local convexity to increase contact pressure and reduce contact resistance.

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