First electrical connector and detachable connector device

Abstract

This application relates to the field of connector technology, disclosing a first electrical connector and a detachable connector device. The first electrical connector includes a base and a terminal assembly. The base has a communicating insertion slot and a receiving slot; the terminal assembly includes a first terminal, which includes a first fixing part, a first soldering part, and a first mating part. The first fixing part and the first mating part are respectively located at both ends of the first soldering part; the first fixing part is connected to the base, and portions of the first soldering part and the first mating part are located in the receiving slot, while a portion of the first mating part is located in the insertion slot. The first terminal is connected to the base through the first fixing part, and the connection between the first soldering part and the first mating part is located in the receiving slot, allowing it to move relative to the base within the receiving slot. In this way, the entire first mating part can move relative to the base, effectively avoiding the fatigue fracture problem at the junction of the first terminal and the base, and effectively extending its service life.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a first electrical connector and a detachable connector device. Background Technology

[0002] Connectors are widely used in electronic devices to enable data transmission of electrical energy and signals between the devices and external sources. For example, connectors such as USB, HDMI, and Type-C typically consist of a base and multiple terminals. The terminals are fixed to the base by injection molding, and parts of the terminals can move relative to the base to achieve electrical connection between the connector and external connectors. However, during long-term mating and unmating, fatigue fracture can easily occur at the junction of the terminals and the base, leading to connector failure. Utility Model Content

[0003] This application provides a first electrical connector and a detachable connector device, which can effectively avoid the problem of fatigue fracture at the junction of the first terminal and the base, and effectively extend the service life of the first terminal.

[0004] In a first aspect, one technical solution adopted in the embodiments of this application is: providing a first electrical connector including a base and a terminal assembly. The base is provided with a communicating insertion groove and a receiving groove; the terminal assembly includes a first terminal, the first terminal including a first fixing part, a first welding part and a first mating part, the first fixing part and the first mating part being located at opposite ends of the first welding part; the first fixing part is connected to the base, a portion of the first welding part and a portion of the first mating part are located in the receiving groove, and a portion of the first mating part is located in the insertion groove.

[0005] In some embodiments, the first mating portion and the first welding portion are bent together, and along a first direction, the first mating portion is located above the first welding portion, and there is a gap between the first mating portion and the first welding portion.

[0006] In some embodiments, along the second direction, the base has a first side and a second side, a first fixing part is fixedly connected to the first side, the second side is provided with a shoulder, and the second direction is perpendicular to the first direction; the first terminal is provided with a first positioning part, the first positioning part abuts against the shoulder, or the first positioning part is spaced apart from the shoulder.

[0007] In some embodiments, the first weld portion includes a first weld leg and a second weld leg spaced apart along a second direction, and the first weld portion is arched.

[0008] In some embodiments, the first fixing part, the first welding part, and the first mating part are integrally formed.

[0009] In some embodiments, the terminal assembly further includes a second terminal, which includes a second fixing portion, a second welding portion, and a second mating portion. The second welding portion and the second mating portion are respectively disposed at both ends of the second fixing portion. The second fixing portion is disposed on the base, the second welding portion extends out of the base, and the second mating portion is located in the insertion groove.

[0010] In some embodiments, the first terminal and the second terminal are arranged at intervals along a third direction, which is perpendicular to the first direction; the first mating portion and the second mating portion are aligned in a second direction, or the first mating portion and the second mating portion are staggered in a second direction.

[0011] In some embodiments, the first electrical connector further includes a housing, the housing having a first fastening portion, and the base having a second fastening portion, the first fastening portion and the second fastening portion being fastened together to fix the housing to the base.

[0012] Secondly, another technical solution adopted in the embodiments of this application is: providing a detachable connector device, including a first electrical connector and a second electrical connector. The first electrical connector is used to be soldered to an external main control circuit board, and the second electrical connector is detachably connected to the first electrical connector and is used to plug into external devices.

[0013] In some embodiments, the detachable connector device further includes a mating circuit board having a first conductive portion and a second conductive portion, the first conductive portion being electrically connected to the terminal assembly of the first electrical connector, and the second conductive portion being electrically connected to the second electrical connector.

[0014] The beneficial effects of this application embodiment are as follows: The first electrical connector of this application embodiment includes a base and a terminal assembly. The base is provided with a connecting insertion groove and a receiving groove; the terminal assembly includes a first terminal, the first terminal including a first fixing part, a first welding part and a first mating part, the first fixing part and the first mating part being located at opposite ends of the first welding part; the first fixing part is connected to the base, a portion of the first welding part and a portion of the first mating part are located in the receiving groove, and a portion of the first mating part is located in the insertion groove. In this application embodiment, the first terminal is connected to the base through the first fixing part to achieve the fixation of the entire first terminal and the base, while the connection between the first welding part and the first mating part is located in the receiving groove, which can move relative to the base within the receiving groove. In this way, when the first mating part is plugged in or unplugged from an external connector, the entire first mating part can move relative to the base, effectively avoiding the problem of fatigue fracture at the junction of the first terminal and the base, and effectively extending the service life of the first terminal. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this application, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of a connector using existing technology; Figure 2 This is an exploded view of the first electrical connector according to an embodiment of this application; Figure 3 This is a partial cross-sectional view of the first electrical connector according to an embodiment of this application; Figure 4 This is another partial cross-sectional view of the first electrical connector according to an embodiment of this application; Figure 5 This is a schematic diagram of a detachable connector device according to an embodiment of this application; Figure 6 This is an exploded view of the detachable connector device according to an embodiment of this application. Detailed Implementation

[0017] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0019] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0020] Please see Figure 1 For example, connectors such as USB, HDMI, and Type-C typically include a base 10' and multiple terminals 20'. The terminals 20' are fixed to the base 10' by injection molding, and parts of the terminals 20' can move relative to the base 10' to achieve electrical connection between the connector and external connectors. However, during long-term insertion and removal, the repeated elastic movement of the terminals 20' makes them prone to fatigue fracture at the junction A with the base 10', leading to connector failure.

[0021] Based on the above issues, please refer to Figure 2 and Figure 3 This application provides a first electrical connector 100. By changing the structural form of the first terminal 21, the first fixing part 211 and the first mating part 213 are respectively located at both ends of the first welding part 212. The repeatedly movable first mating part 213 is connected to the first welding part 212 instead of the first fixing part 211. Since the first welding part 212 is not directly connected to the base 10, the problem of fatigue fracture at the junction of the first terminal 21 and the base 10 can be effectively solved.

[0022] In some embodiments, please refer to Figure 2 and Figure 3 In this embodiment, the first electrical connector 100 includes a base 10 and a terminal assembly 20, with the terminal assembly 20 disposed on the base 10. The first electrical connector 100 is used to be soldered onto the main control circuit board of an electronic device, thereby electrically connecting the terminal assembly 20 to the main control circuit board. The first electrical connector 100 is used to achieve plug-in connection with external electrical connectors, so as to realize electrical connection between the electronic device and external devices.

[0023] As an example, the base 10 is provided with a communicating insertion slot 11 and a receiving slot 12. The insertion slot 11 is used for external connector insertion. A portion of the terminal assembly 20 is located within the insertion slot 11, and a portion is located within the receiving slot 12. Specifically, the terminal assembly 20 includes a first terminal 21, which includes a first fixing portion 211, a first welding portion 212, and a first mating portion 213. The first fixing portion 211 and the first mating portion 213 are located at opposite ends of the first welding portion 212. The first fixing portion 211 is connected to the base 10. A portion of the first welding portion 212 and a portion of the first mating portion 213 are located within the receiving slot 12, and a portion of the first mating portion 213 is located within the insertion slot 11.

[0024] In this embodiment, the first terminal 21 is connected to the base 10 via the first fixing part 211 to fix the entire first terminal 21 to the base 10. The connection between the first welding part 212 and the first mating part 213 is located within the receiving groove 12, allowing it to move relative to the base 10 within the receiving groove 12. Thus, when the first mating part 213 is plugged into or unplugged from an external connector, the entire first mating part 213 can move relative to the base 10, effectively avoiding the fatigue fracture problem at the junction of the first terminal 21 and the base 10, and effectively extending the service life of the first terminal 21.

[0025] In some embodiments, please refer to Figure 2 and Figure 3 The first mating portion 213 and the first welding portion 212 are bent together. Along the first direction X, the first mating portion 213 is located above the first welding portion 212, and there is a gap between the first mating portion 213 and the first welding portion 212. The first direction X can be understood as the direction perpendicular to the main control circuit board when the base 10 is fixed on the main control circuit board. In this embodiment, the bent connection between the first mating portion 213 and the first welding portion 212 increases the elasticity of the first mating portion 213, facilitating connection with external connectors. It also changes the extension direction of the first mating portion 213, placing it above the first welding portion 212, reducing the space occupied by the base 10, resulting in a compact structure and ease of manufacturing. The gap between the first mating portion 213 and the first welding portion 212 increases the movement space of the first mating portion 213.

[0026] In some embodiments, please refer to Figure 2 and Figure 3 Along the second direction Y, the base 10 has a first side 13 and a second side 14. A first fixing part 211 is fixedly connected to the first side 13, and a shoulder 15 is provided on the second side 14. The second direction Y is perpendicular to the first direction X. The second direction Y can also be understood as the direction in which the first electrical connector 100 is inserted into an external electrical connector. The first terminal 21 has a first positioning part 214, which abuts against the shoulder 15, or the first positioning part 214 is spaced apart from the shoulder 15.

[0027] In this embodiment, a structure is provided in which the first positioning part 214 cooperates with the shoulder 15. Firstly, during the welding process with the main control circuit board, the first fixing part 211 connects to the base 10 to form a first support point, while the first positioning part 214 abuts against the shoulder 15 to form a second support point. Under the action of the first and second support points, the first terminal 21 can be fixed relative to the base 10, facilitating the welding of the first welding part 212 to the main control circuit board and improving welding quality. After welding, the first positioning part 214 can abut against the shoulder 15 or be spaced apart from it. Secondly, during the electrical connection insertion process between the first electrical connector 100 and the outside world, the first mating part 213 is compressed and deformed. Under the abutment action of the shoulder 15, the movement of the first positioning part 214 can be restricted to avoid excessive movement of the first mating part 213, which could cause irreversible deformation and affect the subsequent connection of the first terminal 21.

[0028] In some embodiments, please refer to Figure 2 and Figure 3 The first welding portion 212 includes a first welding foot 2121 and a second welding foot 2122 spaced apart along the second direction Y, and the first welding portion 212 is arched. With the above structure, while ensuring sufficient contact area between the first welding portion 212 and the main control circuit board, setting the welding feet as separated first welding feet 2121 and second welding feet 2122 can increase the welding strength between the first welding portion 212 and the main control circuit board. It also helps to set the area between the first welding feet 2121 and second welding feet 2122 as an arched structure, further increasing the structural strength of the first welding portion 212.

[0029] It is understandable that the first fixing part 211, the first welding part 212 and the first mating part 213 of the first terminal 21 can be formed by secondary processing of independent parts, or they can be integrally formed. This reduces the resistance of the first terminal 21 to reduce losses. Integral manufacturing also helps to enhance the overall structural strength of the first terminal 21 and reduce manufacturing difficulty.

[0030] It is understood that in some embodiments, the terminal assembly 20 may consist entirely of the first terminals 21 with the above-described structure, and the first terminals 21 with the same structure are easy to manufacture. In other embodiments, the terminal assembly 20 may include a plurality of first terminals 21 and a plurality of other terminals. For example, in locations of lower stress in the first electrical connector 100, terminals of the prior art can be retained, reducing the cost of modifying the manufacturing mold.

[0031] As an example, please refer to Figure 4The terminal assembly 20 also includes a second terminal 22, which includes a second fixing part 221, a second welding part 222, and a second mating part 223. The second welding part 222 and the second mating part 223 are respectively disposed at both ends of the second fixing part 221. The second fixing part 221 is disposed on the base 10. The second welding part 222 extends out of the base 10. A portion of the second mating part 223 is located in the insertion groove 11, and a portion of the second mating part 223 is located in the receiving groove 12.

[0032] In some embodiments, please refer to Figure 2 The first terminal 21 and the second terminal 22 are arranged at intervals along a third direction Z, which is perpendicular to the first direction X and the second direction Y, respectively. The first mating portion 213 and the second mating portion 223 are aligned in the second direction Y, or they are staggered in the second direction Y. With the above structure, the first mating portion 213 and the second mating portion 223 are both located in the insertion slot 11 to facilitate connection with an external electrical connector. By aligning or staggering the first mating portion 213 and the second mating portion 223 in the second direction Y, the pressure and deformation of the first mating portion 213 and the second mating portion 223 when connected to an external electrical connector can be adjusted.

[0033] In some embodiments, please refer to Figure 2 The first electrical connector 100 also includes a housing 30, which has a first fastening portion 31, and a base 10 has a second fastening portion 16. The first fastening portion 31 and the second fastening portion 16 are fastened together to fix the housing 30 to the base 10. The housing 30 covers the base 10, which allows the housing 30 to define a partial boundary of the insertion slot 11. The housing 30 and the base 10 are detachably fastened together, which facilitates the assembly of the housing itself and the assembly and connection of the first electrical connector 100 with external electrical connectors.

[0034] Please see Figure 5 and Figure 6This application also provides a detachable connector device 1000, including a first electrical connector 100 and a second electrical connector 200, which are detachably connected. The first electrical connector 100 is used to be soldered onto an external main control circuit board, and the second electrical connector 200 is used to connect to external devices. By configuring the second electrical connector 200, which has a higher insertion and removal frequency, to be detachably connected to the first electrical connector 100, when the second electrical connector 200 wears down and its performance degrades, it can be directly disassembled and replaced with a new second electrical connector 200 to establish an electrical connection with the first electrical connector 100. This avoids the need to disassemble the first electrical connector 100 relative to the main control circuit board, effectively reducing maintenance difficulty and cost.

[0035] In some embodiments, the detachable connector device 1000 further includes a mating circuit board 300. The mating circuit board 300 has a first conductive portion 301 and a second conductive portion 302. The first conductive portion 301 is electrically connected to the terminal assembly 20 of the first electrical connector 100, and the second conductive portion 302 is electrically connected to the second electrical connector 200. Adding the mating circuit board 300 between the first electrical connector 100 and the second electrical connector 200 can increase the distance between them to accommodate the internal layout requirements of different electronic devices. Furthermore, the mating circuit board 300 can be a flexible circuit board, which allows for a wider range of height adjustment between the first electrical connector 100 and the second electrical connector 200, removing height limitations and making installation more flexible and convenient.

[0036] This embodiment of the first electrical connector 100 includes a base 10 and a terminal assembly 20. The base 10 is provided with a communicating insertion groove 11 and a receiving groove 12; the terminal assembly 20 includes a first terminal 21, the first terminal 21 including a first fixing part 211, a first welding part 212 and a first mating part 213, the first fixing part 211 and the first mating part 213 are respectively located at both ends of the first welding part 212; the first fixing part 211 is connected to the base 10, a portion of the first welding part 212 and a portion of the first mating part 213 are located in the receiving groove 12, and a portion of the first mating part 213 is located in the insertion groove 11. In this embodiment of the application, the first terminal 21 is connected to the base 10 through the first fixing part 211 to fix the entire first terminal 21 to the base 10, while the connection between the first welding part 212 and the first mating part 213 is located in the receiving groove 12, and can move relative to the base 10 within the receiving groove 12. In this way, when the first mating part 213 is plugged in or unplugged from the external connector, the entire first mating part 213 can move relative to the base 10, effectively avoiding the problem of fatigue fracture at the junction of the first terminal 21 and the base 10, and effectively extending the service life of the first terminal 21.

[0037] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A first electrical connector, characterized in that, include: The base is provided with a connecting slot and a receiving slot; A terminal assembly includes a first terminal, the first terminal including a first fixing part, a first welding part and a first mating part, the first fixing part and the first mating part being located at two ends of the first welding part, respectively; The first fixing part is connected to the base, a portion of the first welding part and a portion of the first mating part are located in the receiving groove, and a portion of the first mating part is located in the insertion groove.

2. The first electrical connector according to claim 1, characterized in that, The first mating part is bent to the first welding part. Along the first direction, the first mating part is located above the first welding part, and there is a gap between the first mating part and the first welding part.

3. The first electrical connector according to claim 2, characterized in that, Along the second direction, the base has a first side and a second side, the first fixing part is fixedly connected to the first side, the second side is provided with a shoulder, and the second direction is perpendicular to the first direction; The first terminal is provided with a first positioning part, which abuts against the shoulder, or the first positioning part is spaced apart from the shoulder.

4. The first electrical connector according to claim 3, characterized in that, The first weld portion includes a first weld leg and a second weld leg spaced apart along a second direction, and the first weld portion is arched.

5. The first electrical connector according to any one of claims 1-4, characterized in that, The first fixing part, the first welding part, and the first docking part are integrally formed.

6. The first electrical connector according to claim 4, characterized in that, The terminal assembly further includes a second terminal, which includes a second fixing part, a second welding part, and a second mating part. The second welding part and the second mating part are respectively disposed at both ends of the second fixing part. The second fixing part is disposed on the base. The second welding part extends out of the base. The second mating part is located in the insertion groove.

7. The first electrical connector according to claim 6, characterized in that, The first terminal and the second terminal are arranged at intervals along a third direction, which is perpendicular to the first direction. The first docking part and the second docking part are aligned in the second direction, or the first docking part and the second docking part are staggered in the second direction.

8. The first electrical connector according to claim 7, characterized in that, The first electrical connector further includes a housing, the housing having a first fastening portion, and the base having a second fastening portion. The first fastening portion and the second fastening portion are fastened together to fix the housing to the base.

9. A detachable connector device, characterized in that, It includes a second electrical connector and a first electrical connector as described in any one of claims 1-8; The first electrical connector is used to be soldered onto the external main control circuit board, and the second electrical connector is detachably connected to the first electrical connector and is used to be plugged into external devices.

10. The detachable connector device according to claim 9, characterized in that, The detachable connector device further includes a mating circuit board, which has a first conductive part and a second conductive part. The first conductive part is electrically connected to the terminal assembly of the first electrical connector, and the second conductive part is electrically connected to the second electrical connector.

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