Terminal assemblies, plug structures and connectors

Abstract

This application relates to a terminal assembly, a plug structure, and a connector. The terminal assembly includes a first insulator, a second insulator, and terminals. The first insulator has multiple first holes, and the second insulator has multiple second holes. Multiple terminals pass through the multiple first holes at one end and the multiple second holes at the other end. The first and second insulators clamp the terminals. The first insulator includes a first connecting portion, and the second insulator includes a second connecting portion, which are fixedly connected. The multiple terminals are clamped and fixed within the first and second insulators. Since there is no interference fit between the terminals and the first and second insulators, stress concentration problems caused by interference fits can be avoided, reducing the risk of stress concentration leading to performance degradation of the terminal assembly. The plug structure and connector, including the aforementioned terminal assembly, can reduce the probability of stress concentration problems.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a terminal assembly, a plug structure, and a connector. Background Technology

[0002] As a key component for achieving circuit connections, electrical connectors typically consist of an insulator and conductive terminals inserted into its inner bore. In traditional technology, the conductive terminals are usually interference-fitted into the insulator. However, for high-density electrical connectors, the interference fit of numerous terminals into the insulator can lead to localized stress concentration within the insulator, potentially causing electrical performance degradation and reduced lifespan. Utility Model Content

[0003] Therefore, it is necessary to provide a terminal assembly, a plug structure, and a connector to address the problem of localized stress concentration within the insulation.

[0004] The first aspect of this application provides a terminal assembly, the terminal assembly including a first insulator, a second insulator and terminals, the first insulator having a plurality of first holes, the second insulator having a plurality of second holes, one end of the plurality of terminals corresponding to the plurality of first holes passing through, and the other end corresponding to the plurality of second holes passing through, the first insulator and the second insulator clamping the terminals; wherein, the first insulator includes a first connecting portion, the second insulator includes a second connecting portion, and the first connecting portion and the second connecting portion are fixedly connected.

[0005] In one embodiment, the connection method between the first connecting part and the second connecting part is configured as any one of interference fit, snap-fit ​​connection, welding and bonding.

[0006] In one embodiment, one of the first connecting portion and the second connecting portion is configured as a connecting post, and the other is configured as a connecting hole, wherein the connecting post and the connecting hole are interference-fitted together.

[0007] In one embodiment, there are multiple connecting posts, which are spaced apart in a direction perpendicular to the axis of the terminal; the number and location of the connecting holes correspond to the number and location of the connecting posts.

[0008] In one embodiment, the plurality of connecting posts include a first connecting post and a second connecting post, wherein the outer diameter of the first connecting post is larger than the inner diameter of the second connecting post; the first insulator includes a first substrate, wherein the first connecting post and the second connecting post are both disposed at the ends of the first substrate, wherein the first connecting post is disposed in a relatively central region and the second connecting post is disposed in a relatively edge region.

[0009] In one embodiment, the plurality of connecting holes includes a first connecting hole and a second connecting hole, the inner diameter of the first connecting hole being larger than the inner diameter of the second connecting hole, the first connecting hole being interference-fitted with the first connecting post, and the second connecting hole being interference-fitted with the second connecting post; the second insulator includes a second substrate, the connecting holes being formed in the second substrate, the second substrate also having a plurality of deformable holes, the plurality of deformable holes being at least partially arranged at intervals in the circumferential direction of the first connecting hole, the deformable holes being used to shrink and deform when the connecting post is interference-fitted with the connecting hole.

[0010] In one embodiment, the terminal assembly further includes a guide portion disposed on the end face of one of the first insulator and the second insulator opposite to the other, the guide portion being configured to guide and engage with a guide portion of another terminal assembly, the guide portion being configured as a guide post or a guide hole.

[0011] In one embodiment, at least one of the first insulator and the second insulator has a limiting groove, the opposite sides of the limiting groove communicating with the first hole and the second hole respectively; the terminal includes a shaft and a limiting ring, the limiting ring is disposed on the outer periphery of the shaft, the shaft passes through the first hole and the second hole, the limiting ring is located in the limiting groove, and the limiting ring abuts against the groove wall of the limiting groove.

[0012] A second aspect of this application also provides a plug-in structure, the plug-in structure including the terminal assembly described above.

[0013] A third aspect of this application also provides a connector, the connector including the plug structure described above.

[0014] In the aforementioned terminal assembly, one end of each terminal passes through a first hole, and the other end of each terminal passes through a second hole. A first insulator and a second insulator are fixedly connected by a first connecting portion and a second connecting portion, thereby clamping the terminals passing through the first and second holes. With this configuration, multiple terminals are clamped and fixed within the first and second insulators. Since there is no interference fit between the terminals and the first and second insulators, stress concentration problems caused by interference fits can be avoided, reducing the risk of stress concentration leading to a decrease in the performance of the terminal assembly. Attached Figure Description

[0015] Figure 1 This is an isometric schematic diagram of a terminal assembly provided in an embodiment of this application.

[0016] Figure 2 for Figure 1 Rear view of the terminal assembly shown.

[0017] Figure 3 for Figure 2 The terminal assembly shown is a cross-sectional view along line AA.

[0018] Figure 4 for Figure 3 A cross-sectional view of the first insulator in the terminal assembly shown.

[0019] Figure 5 for Figure 3 A cross-sectional view of the second insulator in the terminal assembly shown.

[0020] Figure 6 for Figure 1 A bottom view of the second insulator in the terminal assembly shown.

[0021] Figure 7 for Figure 3 A cross-sectional view of the terminals in the terminal assembly shown.

[0022] Figure 8 This is an isometric view of two terminal assemblies of an electrical connector provided in an embodiment of this application.

[0023] Figure 9 for Figure 8 The diagram shows a bottom view of the two terminal assemblies of the electrical connector.

[0024] Figure 10 for Figure 9 The electrical connector shown is a cross-sectional view of the two terminal assemblies along line BB.

[0025] Figure 11 for Figure 10 A cross-sectional view of the insertion terminal assembly in the two terminal assemblies of the electrical connector shown.

[0026] Figure 12 for Figure 11 A bottom view of the second insulator in the plug assembly shown.

[0027] Reference numerals: 10, terminal assembly; 11, limiting groove; 20, plug assembly; 100, first insulator; 110, first connecting part; 111, connecting post; 112, first connecting post; 113, second connecting post; 120, first base; 121, first hole; 122, first positioning wall; 200, second insulator; 210, second connecting part; 211, connecting hole; 212, first connecting hole; 213, second connecting hole; 220, second base; 221, second hole; 222, second positioning wall; 223, deformable hole; 300, terminal; 310, shaft; 320, limiting ring; 400, guide part; O, axis. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms 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.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] With the development of technology, high-density connectors have gradually emerged in the connector field, driven by considerations such as compact design, high signal transmission capability, and space utilization. These high-density connectors typically have more than 0.5 terminals per square millimeter, or are configured with a terminal center distance ≤0.8mm and a contact width ≤0.44mm. High-density connectors feature a high-density distribution of multiple terminals, and the terminals have largely similar structures. Therefore, if the traditional interference fit method is still used to mate the terminals with the insulator, the interference fit points between each terminal and the insulator are concentrated in the same cross-sectional area of ​​the insulator, easily leading to stress concentration at that point. Consequently, the insulator may be subjected to stresses exceeding its material strength, causing insulator deformation, microcracks, or even fracture, compromising the mechanical integrity of the connector. Insulator deformation may cause terminal misalignment, leading to increased contact resistance or unstable connections. Insulator cracking or deterioration increases leakage current, especially in high-voltage or high-frequency applications, potentially causing short circuits or signal interference. In short, stress concentration in the insulator will reduce its performance.

[0035] To address the aforementioned problems, this application proposes a terminal assembly comprising two insulators, which are separately disposed and secured to the terminal by clamping them together from both sides. Because the two separately disposed insulators clamp the terminal, there is no interference fit between the terminal and the insulators. This significantly reduces stress concentration in the insulators and improves their performance. The terminal assembly provided in this application, as well as the insertion structure and connector including this terminal assembly, are described in detail below with reference to specific embodiments and accompanying drawings. It should be emphasized that there is currently no unified standard in the industry for what density qualifies as "high-density" in high-density connectors. The above example of a high-density connector is intended to illustrate the stress concentration problem that occurs when there are a large number of interference-fit terminals within the insulator. Furthermore, the terminal assemblies provided in the embodiments of this application are not limited to applications in high-density connectors.

[0036] See Figures 1 to 3 , Figure 1 An isometric schematic diagram of a terminal assembly provided in one embodiment of this application is shown. Figure 2 for Figure 1 Rear view of the terminal assembly shown. Figure 3 for Figure 2 The diagram shows a cross-sectional view of the terminal assembly along line AA. One embodiment of this application provides a terminal assembly 10, which includes a first insulator 100, a second insulator 200, and terminals 300. Terminals 300 are disposed within the first insulator 100 and the second insulator 200, and the first insulator 100 and the second insulator 200 clamp the terminals 300. The first insulator 100 has a plurality of first holes 121, and the second insulator 200 has a plurality of second holes 221. One end of each terminal 300 passes through one of the plurality of first holes 121, and the other end passes through one of the plurality of second holes 221. The first insulator 100 includes a first connecting portion 110, and the second insulator 200 includes a second connecting portion 210, with the first connecting portion 110 and the second connecting portion 210 fixedly connected.

[0037] In the terminal assembly 10 described above, one end of each terminal 300 passes through the first hole 121, and the other end of each terminal 300 passes through the second hole 221. The first insulator 100 and the second insulator 200 are fixedly connected by the first connecting portion 110 and the second connecting portion 210, thereby clamping the terminals 300 passing through the first hole 121 and the second hole 221. With this configuration, multiple terminals 300 are clamped and fixed within the first insulator 100 and the second insulator 200. Since there is no interference fit between the terminals 300 and the first insulator 100 and the second insulator 200, stress concentration problems caused by interference fits can be avoided, thus reducing the risk of stress concentration leading to a decrease in the performance of the terminal assembly 10. It is readily understood that when the terminal assembly 10 provided in this application is applied to high-density connectors, it can significantly reduce the stress concentration problem of high-density connectors.

[0038] It should be noted that the embodiments of this application do not limit the terminal assembly 10 to be configured as a hole-type terminal assembly or a pin-type terminal assembly, and can be set according to actual needs. When the terminal assembly 10 is configured as a hole-type terminal assembly, the terminal 300 is a socket terminal. Similarly, when the terminal assembly 10 is configured as a pin-type terminal assembly, the terminal 300 is a pin terminal. It can be understood that in Figures 1 to 6 In the terminal assembly 10 shown, the terminal assembly 10 is configured as a pin-type terminal assembly, and the terminal 300 is configured as a pin terminal.

[0039] Please see Figures 3 to 5 In one embodiment, the connection method between the first connecting portion 110 and the second connecting portion 210 is configured as any one of interference fit, snap-fit, welding, and bonding. It should be noted that the fixed connection between the first connecting portion 110 and the second connecting portion 210 in each embodiment includes not only that the first connecting portion 110 and the second connecting portion 210 are themselves constructed to be suitable for mutual mating (e.g., interference fit and snap-fit), but also that the first connecting portion 110 and the second connecting portion 210 are fixedly connected through additional processing methods (e.g., welding and bonding). When the first connecting portion 110 and the second connecting portion 210 are fixedly connected through additional processing methods, the first connecting portion 110 and the second connecting portion 210 can be two opposing sides of the first insulator 100 and the second insulator 200.

[0040] Please see Figure 4 and Figure 5For example, when the connection between the first connecting portion 110 and the second connecting portion 210 is configured as an interference fit, one of the first connecting portion 110 and the second connecting portion 210 is constructed as a connecting post 111, and the other is constructed as a connecting hole 211, with the connecting post 111 and the connecting hole 211 interlocked. It is easy to understand that in this embodiment, the number of the first connecting portion 110 and the second connecting portion 210 is relatively small compared to the number of terminals 300, therefore the interference fit between them will not cause excessive stress concentration.

[0041] For example, when the connection between the first connecting part 110 and the second connecting part 210 is configured as a snap-fit ​​connection, one of the first connecting part 110 and the second connecting part 210 is constructed as a snap-fit ​​block (not shown in the figure, the same below), and the other is constructed as a snap-fit ​​hole (not shown in the figure, the same below), and the snap-fit ​​block and the snap-fit ​​hole are snapped together and fixed.

[0042] Please continue reading. Figures 3 to 5 In one embodiment, there are multiple connecting posts 111, which are spaced apart in the direction of the axis O of the vertical terminal 300. This arrangement improves the uniformity of the connection between the first insulator 100 and the second insulator 200. Furthermore, when the same connection effect is required, instead of an interference fit between a single connecting post 111 and a single connecting hole 211, configuring multiple connecting posts 111 and multiple connecting holes 211 in a one-to-one correspondence can disperse stress and reduce the impact of local stress concentration on the insulator. The number, location, and size of the connecting holes 211 correspond to the number, location, and size of the connecting posts 111 to ensure a suitable fit for insertion.

[0043] Please see Figure 3 In one embodiment, the first insulator 100 includes a first base 120, with a first hole 121 formed in the first base 120, which is the main body portion of the first insulator 100. The second insulator 200 includes a second base 220, with a second hole 221 formed in the second base 220, which is the main body portion of the second insulator 200. The dimensions of the first base 120 and the second base 220 can be differentiated. For example, the second base 220 may primarily provide circumferential support for the terminal 300, while the first base 120 primarily serves to axially fix the terminal 300 in conjunction with the second base 220. Thus, in the axial direction O of the terminal 300, the second base 220 has a larger dimension (i.e., thickness) than the first base 120. The connecting post 111 can be provided on the first base 120, and the connecting hole 211 can be opened on the second base 220. The second base 220 has a greater thickness than the first base 120, so it is less likely to crack or break during interference fit.

[0044] Please see Figure 4Combined Figure 3 and Figure 5 In one embodiment, at least some of the connecting posts 111 have outer diameters different from the others. The outer diameters of the connecting posts 111 can be designed according to their distribution to optimize the connection effect. For example, the connecting posts 111 may include a first connecting post 112 and a second connecting post 113, where the outer diameter of the first connecting post 112 is larger than the inner diameter of the second connecting post 113. Both the first connecting post 112 and the second connecting post 113 are located at the ends of the first base 120, with the first connecting post 112 located in a relatively central region and the second connecting post 113 located in a relatively edge region. The first connecting post 112, located in the relatively central region, has a relatively large radial dimension and therefore plays a primary connecting role. The second connecting post 113, located in the relatively edge region, has a relatively small radial dimension and therefore provides an edge sealing effect, i.e., supplements the connection effect and reduces the probability of gaps appearing at the edges. In one embodiment, the number of second connecting posts 113 may be greater than the number of first connecting posts 112.

[0045] Of course, it should be noted that the multiple connecting posts 111 in this application are not limited to only two types of connecting posts 111 with different outer diameters, but may also have other different outer diameter settings, similar to the above, so they will not be described again here.

[0046] Please continue reading. Figure 5 Combined Figure 3 and Figure 4 Corresponding to the above embodiments, in one embodiment, the plurality of connecting holes 211 includes a first connecting hole 212 and a second connecting hole 213, wherein the inner diameter of the first connecting hole 212 is larger than the inner diameter of the second connecting hole 213. The first connecting hole 212 is interference-fitted with the first connecting post 112, and the second connecting hole 213 is interference-fitted with the second connecting post 113. The first connecting hole 212 and the second connecting hole 213 are formed at the ends of the second base 220, with the first connecting hole 212 located in a relatively central region and the second connecting hole 213 located in a relatively edge region.

[0047] It should be noted that in other embodiments, the multiple connecting posts 111 are not limited to being all located on the first base 120; some of the connecting posts 111 may also be located on the second base 220. Correspondingly, some of the connecting holes 211 may also be formed on the first base 120. Thus, the multiple connecting posts 111 and the multiple connecting holes 211 are interleaved.

[0048] Please see Figure 6In one embodiment, the second substrate 220 further has a plurality of deformation holes 223, which are at least partially spaced apart in the circumferential direction of the first connecting hole 212. The deformation holes 223 are used for shrinkage deformation when the connecting post 111 is interference-fitted with the connecting hole 211. It is understood that since the deformation holes 223 are arranged around the periphery of the first connecting hole 212, when the first connecting post 112 is interference-fitted with the first connecting hole 212, the solid structure located around the first connecting hole 212 can undergo slight deformation and displacement towards the area where the deformation holes 223 are located, thereby reducing the problem of stress concentration caused by mutual compression in local areas of the second substrate 220. In short, with this configuration, when the connecting post 111 is interference-fitted with the connecting hole 211, the deformation holes 223 can alleviate the problem of stress concentration through deformation and shrinkage. Furthermore, some of the deformable holes 223 can also be arranged at intervals in the circumferential direction of the second connecting hole 213, so as to shrink and deform when the connecting post 111 and the connecting hole 211 are interference-fitted. The effect is similar to that described above, so it will not be repeated here.

[0049] Please see Figures 3 to 5 Combined Figure 7 In one embodiment, at least one of the first insulator 100 and the second insulator 200 has a limiting groove 11. The opposite sides of the limiting groove 11 communicate with the first hole 121 and the second hole 221, respectively, meaning the limiting groove 11 connects the first hole 121 and the second hole 221. The terminal 300 passes through the limiting groove 11. The terminal 300 includes a shaft 310 and a limiting ring 320. The limiting ring 320 is disposed on the outer periphery of the shaft 310, which passes through the first hole 121 and the second hole 221. The limiting ring 320 is located within the limiting groove 11 and abuts against the groove wall of the limiting groove 11. Thus, the first insulator 100 and / or the second insulator 200, through the cooperation of the limiting groove 11 and the limiting ring 320, can axially limit the limiting groove 11, thereby clamping the terminal 300.

[0050] Please see Figures 3 to 5 In one embodiment, both the first insulator 100 and the second insulator 200 have limiting grooves 11, which are joined together to clamp the limiting ring 320. Further, the limiting grooves 11 may be recessed into the sides of the first base 120 and the second base 220 facing each other. Even further, the first base 120 has a first positioning wall 122, and the second base 220 has a second positioning wall 222. The first positioning wall 122 and the second positioning wall 222 are the groove walls of the limiting groove 11 arranged opposite each other in the direction of the terminal 300 axis O. The first positioning wall 122 and the second positioning wall 222 cooperate to clamp the limiting ring 320, thereby axially fixing the terminal 300.

[0051] In one embodiment, the limiting groove 11 may be formed only on the first insulator 100. When only the first insulator 100 has the limiting groove 11, the groove wall of the limiting groove 11 can cooperate with the end face of the second insulator 200 facing the first insulator 100, and clamp and fix the limiting ring 320 from both opposite sides.

[0052] Similarly, in another embodiment, the limiting groove 11 may be formed only on the first insulator 100. When only the second insulator 200 has the limiting groove 11, the groove wall of the limiting groove 11 can cooperate with the end face of the first insulator 100 facing the second insulator 200, and clamp and fix the limiting ring 320 from both opposite sides.

[0053] Please see Figure 3 and Figure 5 In one embodiment, the terminal 300 structure further includes a guide portion 400, which is disposed on the end face of one of the first insulator 100 and the second insulator 200 opposite to the other. The guide portion 400 is used for guiding engagement with the guide portion 400 of another terminal assembly 10, and the guide portion 400 is configured as a guide post or a guide hole. Thus, by guiding engagement with the guide portions 400 of the two terminal assemblies 10, the two terminal assemblies 10 can be quickly aligned and accurately inserted. Further, whether the guide portion 400 is disposed on the first insulator 100 or the second insulator 200 can be designed according to which of the two is closer to the other terminal assembly 10 when the terminal assembly 10 is used to engage with the other terminal assembly 10. For example, when the terminal assembly 10 is inserted, the first insulator 100 is closer to the other terminal assembly 10, then the guide portion 400 can be disposed on the end face of the first insulator 100 opposite to the second insulator 200. Similarly, when the terminal assembly 10 is plugged in, if the second insulator 200 is closer to the other terminal assembly 10, the guide portion 400 can be provided on the side end face of the second insulator 200 that is away from the first insulator 100.

[0054] One embodiment of this application also provides a plug structure, which includes a terminal assembly 10 as described in various embodiments. The plug structure may further include components such as a housing for connection and mating with another plug structure and for ease of installation. When the terminal assembly 10 is configured as a pin-type terminal assembly, the plug structure including the terminal assembly 10 is a plug. When the terminal assembly 10 is configured as a hole-type terminal assembly, the plug structure including the terminal assembly 10 is a socket.

[0055] Please see Figures 8 to 12 This application also provides a connector in one embodiment, which may include the terminal assembly 10 or plug structure as described in various embodiments. Further, the connector may include a male end and a female end, which are plugged into each other. One of the male and female ends may be configured to include the terminal assembly 10, or both the male and female ends of the connector may be configured to include the terminal assembly 10. Figures 1 to 7 This shows some or all of the components when the terminal assembly 10 is used as a male terminal. Figure 11 and Figure 12 The diagram shows some or all of the components when the terminal assembly 10 is used as a female terminal.

[0056] For ease of distinction, the terminal assembly 10 (i.e., the pin-type terminal assembly) will continue to be referred to as terminal assembly 10, and the terminal assembly 10 as the female terminal will be referred to as plug assembly 20. It is understood that the terminal 300 of the male terminal assembly 10 is configured as a pin terminal, and the terminal 300 of the plug assembly 20 is configured as a socket terminal. Please refer to [link to relevant documentation]. Figure 10 Combined Figure 11 and Figure 3 In one embodiment, the guide portion 400 of the terminal assembly 10 is configured as a guide post, and the guide portion 400 of the plug assembly 20 is configured as a guide hole, with the guide post and the guide hole engaging in a guiding fit.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A terminal assembly, characterized in that, The terminal assembly includes a first insulator, a second insulator, and terminals. The first insulator has a plurality of first holes, and the second insulator has a plurality of second holes. One end of each of the terminals is correspondingly inserted through a plurality of first holes, and the other end is correspondingly inserted through a plurality of second holes. The first insulator and the second insulator clamp the terminals. The first insulator includes a first connecting portion, and the second insulator includes a second connecting portion. The first connecting portion and the second connecting portion are fixedly connected.

2. The terminal assembly according to claim 1, characterized in that, The connection method between the first connecting part and the second connecting part is configured as any one of interference fit, snap-fit ​​connection, welding and bonding.

3. The terminal assembly according to claim 1, characterized in that, One of the first connecting portion and the second connecting portion is configured as a connecting post, and the other is configured as a connecting hole, wherein the connecting post and the connecting hole are interference-fitted together.

4. The terminal assembly according to claim 3, characterized in that, The number of connecting posts is multiple, and the multiple connecting posts are arranged at intervals in a direction perpendicular to the axis of the terminal; The number and location of the connecting holes correspond to the number and location of the connecting posts.

5. The terminal assembly according to claim 4, characterized in that, The plurality of connecting posts include a first connecting post and a second connecting post, wherein the outer diameter of the first connecting post is larger than the inner diameter of the second connecting post; The first insulator includes a first substrate, and the first connecting post and the second connecting post are both disposed at the ends of the first substrate. The first connecting post is disposed in a relatively central region, and the second connecting post is disposed in a relatively edge region.

6. The terminal assembly according to claim 5, characterized in that, The plurality of connecting holes include a first connecting hole and a second connecting hole, wherein the inner diameter of the first connecting hole is larger than the inner diameter of the second connecting hole, the first connecting hole is interference-fitted with the first connecting post, and the second connecting hole is interference-fitted with the second connecting post; The second insulator includes a second substrate, the connecting hole is formed in the second substrate, and the second substrate also has a plurality of deformable holes, the plurality of deformable holes being at least partially arranged at intervals in the circumferential direction of the first connecting hole, the deformable holes being used to shrink and deform when the connecting post is interference-fitted with the connecting hole.

7. The terminal assembly according to claim 1, characterized in that, The terminal assembly further includes a guide portion disposed on the end face of one of the first insulator and the second insulator opposite to the other, the guide portion being used for guiding engagement with the guide portion of another terminal assembly, the guide portion being configured as a guide post or a guide hole.

8. The terminal assembly according to claim 1, characterized in that, At least one of the first insulator and the second insulator has a limiting groove, and the opposite sides of the limiting groove are respectively connected to the first hole and the second hole; The terminal includes a shaft and a limiting ring. The limiting ring is disposed on the outer periphery of the shaft. The shaft passes through the first hole and the second hole. The limiting ring is located in the limiting groove and abuts against the groove wall of the limiting groove.

9. A plug-in structure, characterized in that, The plug structure includes a terminal assembly as described in any one of claims 1 to 8.

10. A connector, characterized in that, The connector includes the plug structure as described in claim 9.

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