Wire-to-board small-space connector

Abstract

A male terminal of the wire-to-board small-space connector is provided with a plugging part at the front end and a riveting part at the rear end, the plugging part is provided with a contact main body, a contact pressurization part and a posture control part, the contact pressurization part is used for enhancing the contact conduction state of the contact main body, and the posture control part limits the contact pressurization part in a certain space. The contact pressurizing part is kept in a set posture and has a pressurizing property; the female terminal is provided with a slot defined by a bottom plate, a left side plate, a right side plate and a top plate, the slot is matched with the insertion part of the male terminal for insertion connection, and the contact relationship between the contact main body and the inner wall of the slot is enhanced through the stress of the contact pressurization part in the slot; and the female terminal is provided with a stop part for limiting the insertion depth of the insertion part and a clamping part for limiting the insertion and retreat of the insertion part. According to the utility model, close contact connection of the male terminal and the female terminal is ensured, a large contact area is obtained, the conductivity is stronger, deformation and failure of the contact pressurization part can be prevented, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical components, in particular to a plug-and-pull connector structure. Background Art

[0002] At present, plug-and-play connectors are common components in electrical connections. Through the plug-in connection of male and female terminals, power supply or signal transmission is achieved. In the electronics industry, especially in more sophisticated electronic equipment, connector products are required to be smaller in size to save assembly space. However, the small size leads to some structural defects in the connector, such as unstable connection, difficulty in plugging and using, unstable fixation of the conductive terminals, etc., which may cause the product to shake easily after use, and the conductive terminals to deform and loosen easily during assembly. For this reason, in order to ensure the establishment of a stable mechanical and electrical connection, some male and female terminals are designed with a relatively tight plug-in matching structure, which leads to excessive plug-in force, difficulty in pulling out, and poor user experience. Summary of the invention

[0003] The purpose of the utility model is to provide a wire-to-board small space connector, which can well solve the above technical problems, ensure the performance of the terminal, and provide a better user experience.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A wire-to-board small space connector includes a male terminal and a female terminal, wherein the male terminal has a plug-in portion at the front end and a riveting portion at the rear end, wherein the plug-in portion has a contact body, a contact pressurizing portion and a posture control portion, wherein the contact pressurizing portion is used to enhance the contact conduction state of the contact body, and the posture control portion restricts the contact pressurizing portion within a certain space, so that the contact pressurizing portion is maintained in a set posture and has a pressurizing property;

[0006] The female terminal has a slot formed by a bottom plate, a left plate, a right plate and a top plate. The slot is adapted to accommodate the plug-in portion of the male terminal for insertion and connection, and the contact relationship between the contact body and the inner wall of the slot is enhanced by the force applied to the contact pressure portion in the slot. The female terminal is also provided with a stop portion for limiting the insertion depth of the plug-in portion and a clamping portion for limiting the insertion and retraction of the plug-in portion.

[0007] The above scheme is further that the cross-sectional shape of the slot is square, the contact body includes a contact plate arranged straight along the plug-in direction and a surrounding edge folded upward from the left and right sides of the contact plate, the surrounding edge is in contact and connected with the inner wall of the slot; the contact pressure part is a spring sheet obtained by folding back and extending upward from the insertion front end of the contact plate, and the contact pressure part forms an acute angle with the contact body, and a pressing part is provided at the end of the folded extension of the contact pressure part; the posture control part is a limiting frame formed by partially extending and surrounding the surrounding edges on the left and right sides, the end of the folded extension of the contact pressure part passes through the posture control part, and the posture control part limits the pop-up height of the contact pressure part.

[0008] The above scheme is further that the contact pressure portion is provided with two notches opposite to each other on the left and right, and the two notches and the pressing portion are respectively located at the front and rear sides of the posture control portion, and the two notches cooperate with the clamping portion on the female terminal to prevent retreat.

[0009] The above scheme is further that the clamping part includes a first inner folding block whose upper side edge is bent inwardly and a second inner folding block whose upper side edge is bent inwardly. The first inner folding block and the second inner folding block are arranged opposite to each other on the left and right and respectively correspond to the two notches on the contact pressure part. When the contact pressure part bounces upward, the two notches are respectively connected with the first inner folding block and the second inner folding block to prevent retreat.

[0010] The above scheme is further that the first inner folding block and the second inner folding block are bent into an inverted hook form, so that a first groove is formed between the hook head of the first inner folding block and the left side plate, and a second groove is formed between the hook head of the second inner folding block and the right side plate. The widths of the first groove and the second groove respectively match the thickness of the left and right side edges of the contact body. When the plug-in part of the male terminal is inserted for connection, the left and right side edges of the contact body are respectively inserted into the first groove and the second groove.

[0011] The above scheme further has the feature that the stopper is a convex block which partially protrudes downward from the end of the top plate, and the insertion depth of the plug-in portion is limited by supporting the plug-in portion of the male terminal with the convex block.

[0012] The utility model provides a contact body, a contact pressure part and a posture control part for limiting the contact pressure part on the plug-in part of the male terminal, and the female terminal has a slot, which is adapted to the plug-in part of the male terminal for insertion and connection, and the contact relationship between the contact body and the inner wall of the slot is enhanced by the force applied to the contact pressure part in the slot, ensuring that the male terminal and the female terminal are in close contact and connection, obtaining a larger contact area and having a stronger conductive capacity. The posture control part effectively controls and protects the contact pressure part, prevents the contact pressure part from deformation and failure, maintains good pressure properties, and increases service life. The utility model has a simple and reasonable structure, is easy to manufacture, and is easy to use for plug-in, and increases the contact points of the mating terminals to increase the current carrying capacity, thereby improving the usability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 This is a schematic structural diagram of one embodiment of the utility model;

[0014] Attached Figure 2 for Figure 1 A schematic diagram of the structural decomposition of an embodiment;

[0015] Attached Figure 3 for Figure 2 Another structural diagram of the embodiment from another perspective;

[0016] Attached Figure 4 for Figure 1 A schematic diagram of the male terminal structure of an embodiment;

[0017] Attached Figure 5 for Figure 1 Schematic diagram of the female terminal structure of the embodiment. DETAILED DESCRIPTION

[0018] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0019] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] See also Figure 1 , 2, 3, 4, and 5 are schematic diagrams of the structure of the preferred embodiment of the utility model. The utility model is related to a small-space wire-to-board connector, especially for use in electrical conduction on PCBA boards, to achieve plug-and-play functionality and facilitate assembly and connection. The connector structure includes a male terminal 10 and a female terminal 20. Preferably, the male terminal 10 and the female terminal 20 are respectively made by stamping conductive materials, with good overall structural properties and convenient manufacturing. Among them, the male terminal 10 has a plug-in portion 1 at the front end and a riveting portion 2 at the rear end. The plug-in portion 1 has a contact body 11, a contact pressure portion 12, and a posture control portion 13. The contact pressure portion 12 is used to enhance the contact conduction state of the contact body 11. The posture control portion 13 limits the contact pressure portion 12 within a certain space, so that the contact pressure portion 12 is maintained in a set posture and has a pressure property; the design of the posture control portion 13 can well control and protect the contact pressure portion 12 to prevent the contact pressure portion 12 from deforming and failing. The riveting part 2 includes a first riveting wing 21 and a second riveting wing 22 bent toward the center. The first riveting wing 21 and the second riveting wing 22 are arranged in sequence in a direction away from the plug-in part 1 to realize the front and rear riveting connection of the wires, thereby improving the stability and effectiveness of the connection. Of course, according to the actual wiring needs, the riveting part 2 can also be arranged horizontally at one end of the plug-in part 1. After the wires are connected, the arrangement form in which the wires and the terminals are at a 90° angle can be obtained. The specific forms are not described one by one in the drawings here, and the wiring direction of the riveting part 2 can be selected according to actual needs. The female terminal 20 has a slot 201 formed by the bottom plate 3, the left side plate 4, the right side plate 5 and the top plate 6. The slot 201 is adapted to the plug-in part 1 of the male terminal 10 for insertion and connection, and the contact relationship between the contact body 11 and the inner wall of the slot 201 is enhanced by the force of the contact pressure part 12 in the slot 201, ensuring that the male terminal and the female terminal are in close contact, obtaining a larger contact area, and having a stronger conductive ability. The female terminal 20 is also provided with a stopper for limiting the insertion depth of the plug-in part 1 and a clamping part for limiting the insertion back of the plug-in part 1, which has a positioning function to prevent the male terminal from being inserted too deeply; and ensures that the male terminal and the female terminal will not loosen after being plugged in, thereby improving the performance.

[0021] See also Figure 1 , 2As shown in Figures 3, 4, and 5, the present embodiment further has a square cross-sectional shape of the slot 201, which has good plug-in directionality; the contact body 11 includes a contact plate 111 arranged straight along the plug-in direction and a peripheral edge 112 folded upward from the left and right sides of the contact plate 111, and the peripheral edge 112 is in contact with the inner wall of the slot 201, thereby increasing the contact surface and improving the conductivity and plug-in force. The contact pressure portion 12 is a spring sheet folded upward from the insertion front end of the contact plate 111, and the contact pressure portion 12 forms an acute angle with the contact body 11 to obtain relative expansion and contraction elasticity. A pressing portion 121 is provided at the end of the folded extension of the contact pressure portion 12, so that the male terminal 10 can be inserted or removed by pressing. The pressing portion 121 in the figure is constructed by bending the end of the contact pressure portion 12. The posture control part 13 is a limiting frame formed by partially extending and surrounding the surrounding edges 112 on the left and right sides. The end of the contact pressure part 12 that is folded back and extended passes through the posture control part 13. The posture control part 13 limits the bounce height of the contact pressure part 12, which can well control and protect the contact pressure part 12 and prevent the contact pressure part 12 from deforming and failing due to excessive bounce. During operation, the plug-in part 1 of the male terminal 10 is inserted into the slot 201, and the contact pressure part 12 forms an acute angle with the contact body 11, so that the contact pressure part 12 is pressed down by the top plate 6 after being inserted into the slot 201. The elastic force of the contact pressure part 12 is used to increase the plug-in and pull-out force, and generate downward pressure, so that the contact body 11 is closely attached to the connection bottom plate 3, thereby obtaining a larger contact area and enhancing the conductivity.

[0022] When the male terminal 10 is inserted or removed, the contact pressing portion 12 is pressed to close the contact pressing portion 12 to the contact plate 111 , thereby releasing the elastic pressure and facilitating the insertion and removal of the male terminal.

[0023] See also Figure 1 , 2As shown in , 3, 4, and 5, the present embodiment is further characterized in that the stopper is a protrusion 61 that partially protrudes downward from the end of the top plate 6. The protrusion 61 in the figure is vertically protruding downward in a hanging manner. The insertion depth of the plug-in portion 1 is limited by supporting the plug-in portion 1 of the top male terminal 10 with the protrusion 61, thereby easily determining the insertion depth of the male terminal, having a positioning effect, and preventing the male terminal from being over-inserted. The clamping portion is a first inner folding block 41 with the upper side edge of the left side plate 4 bent inwardly and a second inner folding block 51 with the upper side edge of the right side plate 5 bent inwardly. The first inner folding block 41 and the second inner folding block 51 are arranged opposite to each other on the left and right sides and are close to the port of the slot 201. The structure is simple, easy to manufacture, and can be directly stamped. Furthermore, the first inner folding block 41 and the second inner folding block 51 are bent into an inverted hook form, so that a first groove is formed between the hook head of the first inner folding block 41 and the left side plate 4, and a second groove is formed between the hook head of the second inner folding block 51 and the right side plate 5. The widths of the first groove and the second groove respectively match the thickness of the left and right side edges 112 of the contact body 11. When the plug-in part 1 of the male terminal 10 is inserted for connection, the left and right side edges 112 of the contact body 11 are respectively inserted into the first groove and the second groove, thereby increasing restriction and guidance and improving the connection stability of the male terminal 10.

[0024] The contact pressurizing part 12 is provided with two notches 122 opposite to each other on the left and right sides. The two notches 122 and the pressing part 121 are respectively located at the front and rear sides of the posture control part 13. The two notches 122 cooperate with the clamping part on the female terminal 20 to prevent retreat. That is, the two notches 122 correspond to the first inner folding block 41 and the second inner folding block 51 respectively. When the contact pressurizing part 12 bounces upward, the two notches 122 are respectively connected with the first inner folding block 41 and the second inner folding block 51 to prevent retreat. That is, the hooks of the first inner folding block 41 and the second inner folding block 51 are respectively inserted into the notches 122, which effectively restricts the male terminal 10 from moving forward or backward, achieving anti-retreat clamping, ensuring that it will not get loose, and increasing the terminal performance. When unlocking, it is only necessary to press the pressing part 121 of the contact pressurizing part 12 to make the contact pressurizing part 12 close to the contact plate 111. At this time, the notch 122 is separated from the hooks of the first inner folding block 41 and the second inner folding block 51, and the clamping can be released.

[0025] The utility model provides a contact body, a contact pressure part and a posture control part for limiting the contact pressure part on the plug-in part of the male terminal, and the female terminal has a slot, which is adapted to the plug-in part of the male terminal for insertion and connection, and the contact relationship between the contact body and the inner wall of the slot is enhanced by the force applied to the contact pressure part in the slot, ensuring that the male terminal and the female terminal are in close contact and connection, obtaining a larger contact area and having a stronger conductive capacity. The posture control part effectively controls and protects the contact pressure part, prevents the contact pressure part from deformation and failure, maintains good pressure properties, and increases service life. The utility model has a simple and reasonable structure, is easy to manufacture, and is easy to use for plug-in, and increases the contact points of the mating terminals to increase the current carrying capacity, thereby improving the usability of the product.

[0026] Although the preferred specific embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention should not be limited to the structures and operations that are exactly the same as the above description and the accompanying drawings. For those skilled in the art, many equivalent improvements and changes can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and changes should all fall within the scope of protection required by the present invention.

Claims

1. A wire-to-board small space connector, comprising a male terminal (10) and a female terminal (20), characterized in that: The male terminal (10) comprises a plug-in portion (1) at the front end and a riveting portion (2) at the rear end, the plug-in portion (1) comprising a contact body (11), a contact pressurizing portion (12) and a posture control portion (13), the contact pressurizing portion (12) being used to enhance the contact conduction state of the contact body (11), and the posture control portion (13) restricting the contact pressurizing portion (12) within a certain space so that the contact pressurizing portion (12) is maintained in a set posture and has a pressurizing property; The female terminal (20) comprises a slot (201) formed by a bottom plate (3), a left side plate (4), a right side plate (5) and a top plate (6); the slot (201) is adapted to be inserted and connected with the plug-in portion (1) of the male terminal (10); and the contact relationship between the contact body (11) and the inner wall of the slot (201) is enhanced by the force applied to the contact pressure portion (12) in the slot (201); the female terminal (20) is also provided with a stop portion for limiting the insertion depth of the plug-in portion (1) and a clamping portion for limiting the insertion and retraction of the plug-in portion (1).

2. The wire-to-board small space connector according to claim 1, characterized in that: The slot (201) has a square cross-sectional shape. The contact body (11) comprises a contact plate (111) arranged straight along the plugging direction and a peripheral edge (112) folded upward from the left and right sides of the contact plate (111). The peripheral edge (112) is in contact with and connected to the inner wall of the slot (201). The contact pressure portion (12) is a spring sheet folded upward from the insertion front end of the contact plate (111). The contact pressure portion (12) forms an acute angle with the contact body (11). A pressing portion (121) is provided at the end of the folded-back extension of the contact pressure portion (12). The posture control portion (13) is a limiting frame formed by partially extending and surrounding the peripheral edges (112) on the left and right sides. The end of the folded-back extension of the contact pressure portion (12) passes through the posture control portion (13). The posture control portion (13) limits the spring-up height of the contact pressure portion (12).

3. The wire-to-board small space connector according to claim 2, characterized in that: The contact pressure portion (12) is provided with two notches (122) opposite to each other on the left and right sides. The two notches (122) and the pressing portion (121) are respectively located on the front and rear sides of the posture control portion (13). The two notches (122) cooperate with the clamping portion on the female terminal (20) to achieve anti-retraction clamping connection.

4. The wire-to-board small space connector according to claim 1 or 3, characterized in that: The clamping portion comprises a first inner folding block (41) whose upper side edge of the left side plate (4) is bent inwardly, and a second inner folding block (51) whose upper side edge of the right side plate (5) is bent inwardly, the first inner folding block (41) and the second inner folding block (51) being arranged opposite to each other on the left and right and respectively corresponding to two notches (122) on the contact pressure portion (12), and the two notches (122) are respectively clamped with the first inner folding block (41) and the second inner folding block (51) to prevent retreat when the contact pressure portion (12) bounces upward.

5. The wire-to-board small space connector according to claim 4, characterized in that: The first inner folding block (41) and the second inner folding block (51) are bent into an inverted hook form, so that a first groove is formed between the hook head of the first inner folding block (41) and the left side plate (4), and a second groove is formed between the hook head of the second inner folding block (51) and the right side plate (5). The widths of the first groove and the second groove respectively match the thickness of the left and right side edges (112) of the contact body (11). When the plug-in portion (1) of the male terminal (10) is inserted for connection, the left and right side edges (112) of the contact body (11) are respectively inserted into the first groove and the second groove.

6. The wire-to-board small space connector according to claim 1, characterized in that: The stop portion is a protrusion (61) that partially protrudes downward from the end of the top plate (6), and the protrusion (61) supports the plug-in portion (1) of the male terminal (10) to limit the insertion depth of the plug-in portion (1).

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