Pin assembly, connector and electronic product

Abstract

The invention provides a pin assembly, a connector and an electronic product. The pin assembly comprises a pin seat, a pin and a plastic package structure, a mounting hole is formed in the pin seat, and the contact pin is arranged in the mounting hole in a penetrating manner; the pin is provided with an anti-falling structure, and a first gap exists between the anti-falling structure and the pin seat. The first gap is filled with the plastic package structure. According to the invention, the prefabricated punch-formed pin is embedded in the pin seat, and then the pin assembly is formed through an in-mold injection molding process; through the arrangement, the plastic package structure is converted from liquid to solid in the first gap, so that the contact pin is firmly fixed in the pin seat, the contact pin is prevented from loosening and falling off, the connectivity between the contact pin and the plastic package structure is enhanced, and the functionality of the contact pin assembly is prevented from being influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of pin components, and particularly to a pin component, a connector, and an electronic product. Background Art

[0002] The pin component is a main component of the connector. As the signal pin of the connector, it is used to connect with the PCB board. The existing pin components generally include a pin base and pins. During assembly, the pins are usually installed in the pin base, and the connection between the two is relatively poor. When the pin component falls or the connector is flipped, it is easy to cause the pins to separate from the pin base, affecting the functionality of the pin component. Summary of the Invention

[0003] The present invention provides a pin component, a connector, and an electronic product to solve the problem that the pins and the pin base in the existing pin components are easily separated.

[0004] A pin component includes a pin base, pins, and a plastic encapsulation structure; An installation hole is provided in the pin base, and the pins are inserted into the installation hole; An anti - detachment structure is provided on the pins, and there is a first gap between the anti - detachment structure and the pin base; The plastic encapsulation structure is filled in the first gap.

[0005] Preferably, the pins include a main body portion, a pin head and a pin foot respectively extending from both ends of the main body portion along a first direction; The anti - detachment structure is provided on the main body portion.

[0006] Preferably, the anti - detachment structure includes an anti - detachment hole and an anti - detachment groove; The anti - detachment hole is arranged in the middle area of the main body portion along a second direction; The anti - detachment groove is arranged in the edge area of the main body portion along a third direction.

[0007] Preferably, the pins include narrow pins and wide pins; the pin feet of the narrow pins are straight - shaped pin feet, and the pin feet of the wide pins are U - shaped pin feet.

[0008] Preferably, the pin base includes a cylindrical main body; The installation hole is arranged on the cylindrical main body along a first direction; The cylindrical main body is used to be installed on a base; A first guiding structure is provided on the outer wall of the cylindrical main body, and the first guiding structure is used to cooperate with a second guiding structure on the base.

[0009] A connector includes a base and a plurality of the above - mentioned pin components; The base is provided with a plurality of assembly holes, and each of the pin assemblies is detachably mounted in the assembly holes.

[0010] Preferably, the base includes a base body and a plurality of feet extending from the base body in a first direction; The plurality of assembly holes are arranged at intervals on the base body; The plurality of feet are used for mounting on a PCB board, so as to form a partition space between the base body and the PCB board.

[0011] Preferably, the height of the partition space is greater than 3 mm.

[0012] Preferably, the base further includes a guide post extending from the base body in the first direction, and the guide post is used for connecting with the PCB board; the length of the guide post is greater than the length of the feet.

[0013] Preferably, a second guiding structure arranged in the first direction is provided on the hole wall of the assembly hole, and the second guiding structure is used for cooperating with the first guiding structure on the pin base.

[0014] Preferably, a weight-reducing groove is provided on one side of the base body where the feet are provided, and the weight-reducing groove is located in the area of the base body where the assembly holes are provided.

[0015] Preferably, a first assembly area and a second assembly area are provided on the base; A plurality of first assembly holes are provided in the first assembly area, a plurality of second assembly holes are provided in the second assembly area, and the size of the first assembly holes is larger than the size of the second assembly holes; The pin assembly includes a first pin assembly and a second pin assembly, and the size of the first pin assembly is larger than the size of the second pin assembly; The first pin assembly is detachably mounted in the first assembly hole, and the second pin assembly is detachably mounted in the second assembly hole.

[0016] An electronic product includes a PCB board and the connector as described above; The base is connected to the PCB board, and one end of the pin assembly is inserted into the PCB board.

[0017] In the pin assembly provided by the embodiment of the present invention, the prefabricated and stamping-formed pins are embedded in the pin base, and then the pin assembly is formed by an in-mold injection molding process; with such a setting, the encapsulation structure changes from a liquid to a solid in the first gap, realizing firmly fixing the pins in the pin base, avoiding the pins from loosening and falling off, enhancing the connection between the two, and avoiding affecting the functionality of the pin assembly. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the accompanying drawings required for the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 is an exploded view of the pin assembly in an embodiment of the present invention; Figure 2 is a top view of the pin base in an embodiment of the present invention; Figure 3 is an axonometric view of the connector in an embodiment of the present invention; Figure 4 is an exploded view of the connector in an embodiment of the present invention; Figure 5 is an axonometric view of the base in an embodiment of the present invention; Figure 6 is a top view of the base in an embodiment of the present invention; Figure 7 is a front view of the connector in an embodiment of the present invention; Figure 8 is a cross-sectional view of the connector in an embodiment of the present invention.

[0020] Wherein, 1, pin base; 11, cylindrical main body; 12, first chamfer; 13, first guiding structure; 2, pin; 21, main body part; 22, needle head; 23, pin foot; 3, mounting hole; 4, anti-disengagement structure; 41, anti-disengagement hole; 42, anti-disengagement groove; 5, base; 51, assembly hole; 52, base body; 53, base foot; 54, guiding column; 55, second chamfer; 56, second guiding structure; 57, weight reduction groove; 6, PCB board; 7, partition space. Specific embodiments

[0021] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] An embodiment of the present invention provides a pin assembly. Referring to Figure 1 、 Figure 3 and Figure 4 , the pin assembly includes a pin base 1, pins 2, and a plastic encapsulation structure; an installation hole 3 is provided in the pin base 1, and the pins 2 are inserted into the installation hole 3; an anti - detachment structure 4 is provided on the pins 2, and there is a first gap between the anti - detachment structure 4 and the pin base 1; the plastic encapsulation structure is filled in the first gap.

[0025] As an example, the pin assembly includes a pin base 1, pins 2, and a plastic encapsulation structure. The pins 2 are specifically PIN pins. An installation hole 3 is provided in the pin base 1 to provide an installation position for the pins 2; an anti - detachment structure 4 is provided on the pins 2, and the anti - detachment structure 4 can be used to prevent the pins 2 from detaching from the installation hole 3, ensuring the connection between the pins 2 and the pin base 1. During installation, the pins 2 are inserted into the installation hole 3, and there is a first gap between the anti - detachment structure 4 and the pin base 1. The plastic encapsulation structure is filled in the first gap. Specifically, the pre - fabricated and stamped pins 2 are embedded in the pin base 1, and then the pin assembly is formed by an in - mold injection molding process; with this arrangement, the plastic encapsulation structure changes from a liquid to a solid in the first gap, realizing firmly fixing the pins 2 in the pin base 1, preventing the pins 2 from loosening and falling off, enhancing the connection between the two, and avoiding affecting the functionality of the pin assembly. Among them, the pins 2 are in a cuboid structure, and the installation hole 3 is a cuboid - shaped installation hole penetrating the pin base 1. The cuboid structure is adapted to the cuboid - shaped installation hole, facilitating the embedding of the pins 2 in the installation hole 3.

[0026] As an example, a processing method of the pin component is introduced: First, the pin 2 is manufactured by a prefabricated stamping process, and an anti - detachment structure 4 is provided on the pin 2; then, the pin base 1 is manufactured by an injection molding process, and an installation hole 3 is provided on the pin base 1. The installation hole 3 facilitates the installation of the pin 2, and the number of installation holes 3 is designed according to actual requirements. Finally, the pin 2 is inserted into the installation hole 3 of the pin base 1, and the anti - detachment structure 4 can play a role in fixing and preventing detachment; and the encapsulation structure is filled in the first gap between the anti - detachment structure 4 and the pin base 1 by an in - mold injection molding process. Specifically, the pin 2 and the pin base 1 are integrated by an insert in - mold injection molding process. The encapsulation structure changes from a liquid to a solid in the first gap, realizing firmly fixing the pin 2 in the pin base 1, avoiding the loosening and falling off of the pin 2, enhancing the connection between the two, and avoiding affecting the functionality of the pin component.

[0027] In one embodiment, referring to Figure 1 , the pin 2 includes a main body portion 21, a pin head 22 and a pin foot 23 respectively extending from both ends of the main body portion 21 along a first direction; the anti - detachment structure 4 is provided on the main body portion 21.

[0028] Among them, the first direction is the axial direction of the pin 2, specifically the length direction of the pin 2.

[0029] As an example, the pin 2 includes a main body portion 21, a pin head 22 and a pin foot 23; the pin head 22 and the pin foot 23 are components respectively extending from both ends of the main body portion 21 along a first direction. The pin head 22 is used to connect with other components, and the pin foot 23 is used to connect with the PCB board 6 to realize the communication function. The main body portion 21 is installed in the installation hole 3 of the pin base 1, and the anti - detachment structure 4 is provided on the main body portion 21, realizing firmly fixing the pin 2 in the pin base 1, avoiding the loosening and falling off of the pin 2, enhancing the connection between the two, and avoiding affecting the functionality of the pin component.

[0030] In one embodiment, referring to Figure 1 , the anti - detachment structure 4 includes an anti - detachment hole 41 and an anti - detachment groove 42; the anti - detachment hole 41 is provided in the middle area of the main body portion 21 along a second direction; the anti - detachment groove 42 is provided in the edge area of the main body portion 21 along a third direction. Among them, the first direction, the second direction and the third direction are perpendicular to each other in pairs. The second direction is the thickness direction of the pin 2, and the third direction is the width direction of the pin 2.

[0031] As an example, the anti - detachment structure 4 includes an anti - detachment hole 41 and an anti - detachment groove 42. During design, the anti - detachment hole 41 is arranged in the middle area of the main body part 21 along the second direction. Specifically, the anti - detachment hole 41 is a through - hole and is arranged on the part of the pin 2 located within the mounting hole 3. The anti - detachment groove 42 is arranged on the edge area of the main body part 21, i.e., on the side wall of the main body part 21, along the third direction. Specifically, the anti - detachment groove 42 is a groove and is arranged on the part of the pin 2 located within the mounting hole 3. With such an arrangement, after the pin 2 is inserted into the mounting hole 3 and the encapsulation structure is filled in the first gap existing between the anti - detachment structure 4 and the pin base 1, the encapsulation structure within the anti - detachment hole 41 and the anti - detachment groove 42 serves to firmly fix the pin 2 within the pin base 1, preventing the pin 2 from loosening and falling off, playing a role in fixing and anti - detachment, enhancing the connection between the two, and avoiding affecting the functionality of the pin assembly. Among them, the number of anti - detachment holes 41 is multiple, for example, two, and the two anti - detachment holes 41 are arranged at intervals along the first direction. The number of anti - detachment grooves 42 is multiple, for example, six. The six anti - detachment grooves 42 are divided into two groups, and the two groups of anti - detachment grooves 42 are symmetrically arranged on the two side walls of the main body part 21, and the three anti - detachment grooves 42 in each group are arranged at intervals along the first direction.

[0032] In one embodiment, referring to Figure 1 、 Figure 3 and Figure 4 , the pin 2 includes a narrow pin and a wide pin; the pin foot 23 of the narrow pin is a straight - shaped pin foot, and the pin foot 23 of the wide pin is a U - shaped pin foot.

[0033] As an example, the pin 2 includes a narrow pin and a wide pin; the pin assembly can be pre - fabricated and customized standardly, and can be designed into pin assemblies with various width specifications. Currently, only the specifications of 2.8 mm and 1.2 mm are designed, and subsequent common specifications such as 0.64 mm and 1.5 mm can be customized, and they can be freely matched according to product requirements without re - opening the mold. When the specification of the pin 2 is not greater than the preset specification, it is a narrow pin, and the pin foot 23 of the narrow pin is a straight - shaped pin foot; when the specification of the pin 2 is greater than the preset specification, it is a wide pin, and the pin foot 23 of the wide pin is a U - shaped pin foot. Among them, setting the pin foot 23 of the wide pin as a U - shaped pin foot can reduce the connection area between the pin 2 and the PCB board 6, and can reduce the heat transfer during the welding process, avoiding overheating and damage of the equipment.

[0034] In one embodiment, referring to Figure 1 and Figure 2 , the pin base 1 includes a cylindrical main body 11; the mounting hole 3 is arranged on the cylindrical main body 11 along the first direction; the cylindrical main body 11 is used for mounting on the base 5; the outer wall of the cylindrical main body 11 is provided with a first guiding structure 13, and the first guiding structure 13 is used for cooperating with the second guiding structure 56 on the base 5.

[0035] As an example, the pin base 1 includes a cylindrical main body 11; the cylindrical main body 11 is used to be installed on the base 5, and the installation hole 3 is arranged on the cylindrical main body 11 to provide an installation position for the pin 2. First chamfers 12 are provided at both ends of the cylindrical main body 11, which can cooperate with the second chamfers 55 on the base 5 to provide guidance for the installation of the pin base 1; a first guiding structure 13 is arranged on the outer wall of the cylindrical main body 11. The first guiding structure 13 is specifically a guiding rib, which can cooperate with the second guiding structure 56 on the base 5 to further provide guidance for the installation of the pin base 1, and at the same time has a limiting effect on the pin base 1, facilitating the assembly of the pin base 1.

[0036] An embodiment of the present invention provides a connector. Referring to Figure 1 、 Figure 3 and Figure 4 , it includes a base 5 and a plurality of pin assemblies; a plurality of assembly holes 51 are provided on the base 5, and each pin assembly is detachably installed in the assembly hole 51.

[0037] As an example, the connector includes a base 5 and a plurality of pin assemblies; the pin assembly includes a pin base 1, a pin 2 and a plastic encapsulation structure, and the pin 2 is specifically a PIN pin. An installation hole 3 is arranged in the pin base 1 to provide an installation position for the pin 2; an anti-detachment structure 4 is arranged on the pin 2, and the anti-detachment structure 4 can be used to prevent the pin 2 from detaching from the installation hole 3, ensuring the connection between the pin 2 and the pin base 1. During installation, the pin 2 is inserted through the installation hole 3, and there is a first gap between the anti-detachment structure 4 and the pin base 1. The plastic encapsulation structure is filled in the first gap. Specifically, the prefabricated and stamped pin 2 is embedded in the pin base 1, and then the pin assembly is formed by an in-mold injection molding process; with such a setting, the plastic encapsulation structure changes from a liquid to a solid in the first gap, realizing firmly fixing the pin 2 in the pin base 1, preventing the pin 2 from loosening and falling off, enhancing the connection between the two, and avoiding affecting the functionality of the pin assembly.

[0038] According to actual requirements, a plurality of assembly holes 51 are provided on the base 5. During installation, each pin assembly is detachably installed in the assembly hole 51. Specifically, the pin assembly is inserted from one side of the base 5 to complete the assembly of the connector, which provides convenience for the installation and disassembly of the pin assembly, ensures that the pin assembly is installed together with the base 5, and facilitates the assembly of the connector. Among them, the pin assembly can be adjusted in direction according to design requirements, and the needle tip 22 of the pin 2 in the pin assembly can be arranged horizontally or longitudinally.

[0039] In one embodiment, referring to Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8, the base 5 includes a base body 52 and a plurality of feet 53 extending from the base body 52 along a first direction; a plurality of mounting holes 51 are arranged at intervals on the base body 52; the plurality of feet 53 are used to be mounted on the PCB board 6 so as to form a partition space 7 between the base body 52 and the PCB board 6.

[0040] As an example, the base 5 includes a base body 52 and a plurality of feet 53; during design, a plurality of mounting holes 51 are arranged at intervals on the base body 52 to facilitate the installation of the pin assembly; the plurality of feet 53 are components extending from the base body 52 along the first direction, and the plurality of feet 53 are specifically distributed in a rectangular shape at the four corners of the base body 52 and are used to connect with the PCB board 6 to achieve communication functions; a partition space 7 is formed between the base body 52 and the PCB board 6, so that the base 5 and the PCB board 6 adopt a suspended design, increasing the space between the PCB board 6 and the base 5, thereby increasing the air flow area, accelerating welding heat dissipation, and avoiding the phenomenon of warping of the PCB board 6. There is a second gap between two adjacent feet 53, so that the base 5 and the PCB board 6 adopt a partial step contact, making the base 5 and the PCB board 6 adopt a suspended design, increasing the space between the PCB board 6 and the base 5, thereby increasing the air flow area and accelerating welding heat dissipation. In addition, the pins 23 of the pins 2 in the pin assembly can be lifted to increase the heat conduction distance of the pins 2 in the pin assembly; at the same time, the heat dissipation of the pins 2 is optimized to avoid the rapid transfer of heat to the base 5 and reduce the contact temperature of the base 5.

[0041] In one embodiment, referring to Figure 7 , the height of the partition space 7 is greater than 3 mm.

[0042] As an example, the height h of the simulated theoretical partition space 7 should be greater than 3 mm, so as to increase the air flow area, accelerate welding heat dissipation, and avoid the phenomenon of warping of the PCB board 6; when the space permits, the greater the h, the smaller the influence of temperature on deformation. Through simulation comparison, it can be known that when the pins 23 are lengthened by 2 mm, the base 5 can be lifted, and the temperature at the connection between the base 5 and the pins 2 can be effectively reduced by 17 °C, which is beneficial to reducing thermal deformation.

[0043] In one embodiment, referring to Figure 3 , Figure 5 , Figure 7 and Figure 8 , the base 5 further includes a guide post 54 extending from the base body 52 along the first direction, and the guide post 54 is used to connect with the PCB board 6; the length of the guide post 54 is greater than the length of the feet 53.

[0044] As an example, the base 5 further includes a guide post 54 which extends from the base body 52 in a first direction and is used to contact the PCB board 6. When the base 5 is installed on the PCB board 6, the length of the guide post 54 is greater than that of the base foot 53. The guide post 54 contacts the PCB board 6 in advance, which can provide guiding and limiting for the installation of the base 5 and ensure the connectivity between the base 5 and the PCB board 6.

[0045] In one embodiment, referring to Figure 5 and Figure 6 , a second guiding structure 56 arranged in the first direction is provided on the hole wall of the assembly hole 51, and the second guiding structure 56 is used to cooperate with the first guiding structure 13 on the pin base 1.

[0046] As an example, a second chamfer 55 is provided at the orifice of the assembly hole 51. Specifically, the assembly hole 51 is a circular through hole, and the second chamfer 55 is provided at the orifice. The second chamfer 55 cooperates with the first chamfer 12 on the pin base 1, which can provide guidance for installing the pin base 1 in the assembly hole 51, thus facilitating the assembly of the pin assembly in the base 5. A second guiding structure 56 arranged in the first direction is provided on the hole wall of the assembly hole 51. Specifically, a guide groove is provided on the hole wall of the assembly hole 51, and the guide groove cooperates with the first guiding structure 13 on the pin base 1, i.e., the guiding rib, to play a guiding and assembling role, further providing guidance for the installation of the pin base 1 and also having a limiting effect on the pin base 1. Among them, each pin assembly and the base body 52 are interference-fitted with four groups of guide grooves and guiding ribs.

[0047] In this example, mainly the structure of the base 5 is optimized. At the same time, the pin 2 and the pin base 1 adopt the in-mold injection process instead of directly contacting the pin 2 with the base 5, making the pin base 1 and the base 5 have local interference, reducing the heat transferred upward from the root of the pin foot 23 during the welding process. In other words, it increases the thermal resistance between the pin 2 and the base 5 and reduces the heat transfer efficiency, thereby reducing the deformation amount of the base 5 caused by high temperature.

[0048] In one embodiment, referring to Figure 5 and Figure 8 , a weight-reducing groove 57 is provided on one side of the base body 52 where the base foot 53 is provided, and the weight-reducing groove 57 is located in the area of the base body 52 where the assembly hole 51 is provided.

[0049] As an example, a weight-reducing groove 57 is provided on one side of the base body 52 where the base foot 53 is provided, and the weight-reducing groove 57 is located in the area of the base body 52 where the assembly hole 51 is provided. By setting the weight-reducing groove 57 in this way, the base structure of the base 5 can be changed, and a glue-removing and hollowing design can be carried out inside the base body 52, increasing the anti-deformation ability of the base 5 and avoiding the thermal expansion deformation caused by the solid structure characteristics.

[0050] In one embodiment, with reference to Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 , a first assembly area and a second assembly area are provided on the base 5; a plurality of first assembly holes are provided in the first assembly area, and a plurality of second assembly holes are provided in the second assembly area. The size of the first assembly holes is larger than that of the second assembly holes; the pin assembly includes a first pin assembly and a second pin assembly, and the size of the first pin assembly is larger than that of the second pin assembly; the first pin assembly is detachably installed in the first assembly holes, and the second pin assembly is detachably installed in the second assembly holes.

[0051] As an example, according to actual requirements, a first assembly area and a second assembly area are provided on the base 5; the pin assembly includes a first pin assembly and a second pin assembly; a plurality of first assembly holes are provided in the first assembly area to provide an installation position for installing the first pin assembly; a plurality of second assembly holes are provided in the second assembly area to provide an installation position for installing the second pin assembly. The size of the first assembly holes is larger than that of the second assembly holes, and the size of the first pin assembly is larger than that of the second pin assembly; during installation, the first pin assembly is detachably installed in the first assembly holes, and the second pin assembly is detachably installed in the second assembly holes; in this way, the first pin assembly and the second pin assembly are respectively inserted into the first assembly holes and the second assembly holes of the base 5 to complete the assembly of the connector, which provides convenience for the installation and disassembly of the pin assembly, ensures that the pin assembly is installed together with the base 5, and facilitates the assembly of the connector.

[0052] An embodiment of the present invention provides an electronic product, with reference to Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 , which includes a PCB board 6 and a connector. The base 5 is connected to the PCB board 6, and one end of the pin assembly is plugged into the PCB board 6.

[0053] In the production process of both traditional controllers and domain controllers, the soldering of the PCB board 6 is an essential production step. Among them, reflow soldering and wave soldering are two common soldering processes. However, during the soldering process of the connector, especially when the number of pin assemblies on the PCB board 6 is large, the problem of bowing of the PCB board 6 often occurs. This not only affects the soldering quality of the PCB board 6, but also may cause poor soldering contact of the components. At the same time, the most obvious problem caused by the bowing phenomenon is that cracks will appear at the soldering positions when the PCB board 6 is sliced. For automotive safety components, the cracks will cause connection failure problems, resulting in controller function failure, and thus potential safety hazards will occur.

[0054] As an example, the electronic product includes a PCB board 6 and a connector. During installation, the base 5 is connected to the PCB board 6, and one end of the pin assembly is plugged into the PCB board 6. Specifically, the base feet 53 are connected to the PCB board 6, and the pins 23 of the pins 2 in the pin assembly are plugged into the PCB board 6, so as to form a partition space 7 between the base body 52 and the PCB board 6. Such a setting makes the base 5 and the PCB board 6 adopt a suspended design, increasing the space between the PCB board 6 and the base 5, thereby increasing the air flow area, accelerating the welding heat dissipation, and avoiding the phenomenon of warping of the PCB board 6. The connector in this example solves the problem of warping of the PCB board 6 caused by using traditional reflow soldering and wave soldering processes when a large-area pin assembly is connected to the PCB board 6; reduces the production technical requirements of the connector, eliminates the special pin equipment, reduces the precision requirements of the process, and improves the production efficiency and development cost.

[0055] In this example, the connector includes a base 5 and a plurality of pin assemblies; the pin assembly includes a pin base 1, pins 2 and a plastic encapsulation structure, and the pins 2 are specifically PIN pins. An installation hole 3 is provided in the pin base 1 to provide an installation position for the pins 2; an anti-detachment structure 4 is provided on the pins 2, and the anti-detachment structure 4 can be used to prevent the pins 2 from detaching from the installation hole 3, ensuring the connection between the pins 2 and the pin base 1. During installation, the pins 2 are inserted into the installation holes 3, and there is a first gap between the anti-detachment structure 4 and the pin base 1. The plastic encapsulation structure is filled in the first gap. Specifically, the prefabricated and stamped pins 2 are embedded in the pin base 1, and then the pin assembly is formed by in-mold injection molding process; such a setting makes the plastic encapsulation structure change from a liquid to a solid in the first gap, realizing firmly fixing the pins 2 in the pin base 1, preventing the pins 2 from loosening and falling off, enhancing the connection between the two, and avoiding affecting the functionality of the pin assembly.

[0056] According to actual requirements, a plurality of assembly holes 51 are provided on the base 5. During installation, each pin assembly is detachably installed in the assembly holes 51. Specifically, the pin assembly is inserted from one side of the base 5 to complete the assembly of the connector. This provides convenience for the installation and disassembly of the pin assembly, ensures that the pin assembly is installed together with the base 5, and is convenient for assembling the connector.

[0057] As an example, a processing method of a connector is introduced: First, a base 5 is obtained by an injection molding process, and an assembly hole 51 is provided on the base 5; then the pin assembly is detachably installed in the assembly hole 51 of the base 5; finally, the base 5 is soldered to the PCB board 6 by reflow soldering or wave soldering, and one end of the pin assembly is inserted into the PCB board 6. Specifically, the base leg 53 is connected to the PCB board 6, and one end of the pin assembly is inserted into the PCB board 6, so as to form a partition space 7 between the base body 52 and the PCB board 6. Such a setting makes the base 5 and the PCB board 6 adopt a suspended design, increasing the space between the PCB board 6 and the base 5, thereby increasing the air flow area, accelerating the welding heat dissipation, and avoiding the phenomenon of warping of the PCB board 6. The connector in this example mainly adopts the method of separating the pin assembly from the base 5. The separate base 5 and the pin assembly are respectively formed and then assembled by a fixture. Finally, the connector completes the on-board soldering through general reflow soldering or wave soldering to achieve the communication function.

[0058] The above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A pin assembly, characterized in that: Including needle seat, pin and plastic sealing structure; The needle seat is provided with a mounting hole, and the insertion pin is inserted into the mounting hole; The insertion pin is provided with an anti-drop structure, and there is a first gap between the anti-drop structure and the needle seat; The plastic packaging structure is filled in the first gap.

2. The pin assembly according to claim 1, characterized in that: The insertion pin comprises a main body, and a needle head and a pin extending from two ends of the main body along a first direction respectively; The anti-drop structure is arranged on the main body.

3. The pin assembly according to claim 2, characterized in that: The anti-slip structure includes an anti-slip hole and an anti-slip groove; The anti-drop hole is arranged in the middle area of ​​the main body along the second direction; The anti-slip groove is arranged on an edge area of ​​the main body along a third direction.

4. The pin assembly according to claim 1, characterized in that: The insertion pins include narrow pins and wide pins; the pins of the narrow pins are straight pins, and the pins of the wide pins are U-shaped pins.

5. The pin assembly according to claim 1, characterized in that: The needle seat includes a cylindrical body; The mounting hole is arranged on the cylindrical body along a first direction; The columnar body is used to be mounted on a base; A first guide structure is provided on the outer wall of the columnar body, and the first guide structure is used to cooperate with the second guide structure on the base.

6. A connector, characterized in that: It comprises a base and a plurality of pin assemblies according to any one of claims 1 to 5; The base is provided with a plurality of assembly holes, and each of the pin assemblies is detachably installed in the assembly hole.

7. The connector according to claim 6, characterized in that: The base comprises a base body and a plurality of feet extending from the base body along a first direction; A plurality of assembly holes are arranged on the base body at intervals; The plurality of base feet are used to be mounted on a PCB board so as to form a partition space between the base body and the PCB board.

8. The connector according to claim 7, characterized in that: The height of the partition space is greater than 3 mm.

9. The connector according to claim 7, characterized in that: The base also includes a guide column extending from the base body along a first direction, and the guide column is used to connect with the PCB board; the length of the guide column is greater than the length of the base foot.

10. The connector according to claim 7, characterized in that: A second guide structure arranged along a first direction is provided on the hole wall of the assembly hole, and the second guide structure is used to cooperate with the first guide structure on the needle seat.

11. The connector according to claim 7, characterized in that: A side surface of the base body provided with the base foot is provided with a weight-reducing groove, and the weight-reducing groove is located in a region of the base body where the assembly hole is provided.

12. The connector according to claim 6, characterized in that: The base is provided with a first assembly area and a second assembly area; The first assembly area is provided with a plurality of first assembly holes, the second assembly area is provided with a plurality of second assembly holes, and the size of the first assembly hole is larger than the size of the second assembly hole; The pin assembly comprises a first pin assembly and a second pin assembly, wherein the size of the first pin assembly is larger than the size of the second pin assembly; The first pin assembly is detachably mounted in the first assembly hole, and the second pin assembly is detachably mounted in the second assembly hole.

13. An electronic product, characterized in that: Comprising a PCB board and the connector according to any one of claims 6 to 12; The base is connected to the PCB board, and one end of the pin assembly is plugged into the PCB board.

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