Plug end component, plug end assembly and electrical connector

Abstract

The application relates to a plug-in end component, a plug-in end assembly and an electrical connector. The plug-in end component comprises a support, a cover plate and conductive terminals. The support has oppositely arranged first and second ends. The first end is used for plugging with a plug-in component. The second end is provided with a plurality of first holes. The first holes are in communication with the first end. The cover plate comprises a cover body and a plurality of first isolation barrels. The cover body is in abutment with the second end. The plurality of first isolation barrels are arranged at intervals and one end of each of the first isolation barrels is connected with the cover body. The other end of each of the first isolation barrels is plugged with the first hole and has a first opening. A plurality of conductive terminals are correspondingly arranged in the plurality of first isolation barrels and located in the first hole plugged by the first isolation barrel. The cover plate and the support clamp and fix the conductive terminals.

Description

Technical Field

[0001] This application relates to the field of conductive connection technology, and in particular to a plug component, plug assembly and electrical connector. Background Technology

[0002] With the rapid development of electronic equipment technology, electrical connectors are widely used in signal transmission and power connection. In traditional designs, to meet electrical safety standards, the spacing between terminals is typically increased to improve creepage distance. For example, widening the gap between adjacent terminals can reduce the risk of arcing. However, in multi-core electrical connectors, such as high-density connectors, this design approach leads to a significant increase in overall structural size and volume. Utility Model Content

[0003] Therefore, it is necessary to provide a terminal component, terminal assembly, and electrical connector to address the problem of excessive size in traditional multi-core connectors.

[0004] The first aspect of this application provides a plug-in component, which includes a support member, a cover plate, and conductive terminals. The support member has a first end and a second end disposed opposite to each other. The first end is used to plug into a plug-in component, and the second end has a plurality of first holes that communicate with the first end. The cover plate includes a cover body and a first isolation cylinder. The cover body abuts against the second end. The plurality of first isolation cylinders are arranged at intervals, with one end connected to the cover body and the other end plugged into the first hole and having a first opening. The plurality of conductive terminals are correspondingly inserted through the plurality of first isolation cylinders and located in the first hole to which the first isolation cylinder is plugged in. The cover plate and the support member clamp and fix the conductive terminals.

[0005] In one embodiment, the support includes a support body and a second isolation cylinder. The support body has a first end and a second end. The second isolation cylinder is connected to the first end and communicates with the first hole. The conductive terminal extends into the second isolation cylinder, and the second isolation cylinder is used to insert with the plug-in component.

[0006] In one embodiment, the second isolation cylinder has a second hole that communicates with the first hole, the cover plate has a first stepped portion that is disposed on the hole wall of the first hole, the support member has a second stepped portion that is disposed on the hole wall of the second hole, the first stepped portion and the second stepped portion are disposed opposite to each other and both abut against the conductive terminal.

[0007] In one embodiment, the support member has a plurality of third holes that communicate with a plurality of first holes, and the third holes are used for insertion into the plug-in component.

[0008] In one embodiment, the support includes a limiting plate, the first hole and the third hole are respectively located on opposite sides of the limiting plate, the limiting plate has a through hole that connects the first hole and the third hole; the cover plate includes a third step portion, the third step portion is disposed facing the limiting plate and both abut against the conductive terminal.

[0009] In one embodiment, the via is used for insertion of a terminal of the plug-in component, the via having an inlet section whose inner diameter gradually increases in a direction from the side where the first hole is located to the side where the third hole is located.

[0010] In one embodiment, all the conductive terminals are located inside the first insulating cylinder.

[0011] In one embodiment, the cover plate is fixedly connected to the support member; wherein the fixed connection between the cover plate and the support member can be configured as any one of interference fit, snap-fit, adhesive connection and welding.

[0012] A second aspect of this application also provides a plug assembly, the plug assembly including the plug component as described above.

[0013] A third aspect of this application also provides an electrical connector, the electrical connector including at least one plug-in component as described above.

[0014] A fourth aspect of this application provides an electrical connector comprising the plug assembly described above.

[0015] In the aforementioned plug assembly, multiple conductive terminals are correspondingly inserted into multiple first isolation cylinders, and the first isolation cylinders are inserted into the support member. Therefore, the conductive terminals are either completely located inside the first isolation cylinders or only partially exposed outside the first isolation cylinders. Thus, through the enclosing and protective function of the first isolation cylinders and the separating function of the support member, the creepage distance between each conductive terminal can be increased, thereby increasing the number of conductive terminals per unit area in the support member, balancing the space occupied by the plug assembly and the number of conductive terminals. As one example, one end of the first isolation cylinder is inserted into a first hole, and this end has a first opening. The first opening connects to the outside of the first isolation cylinder, meaning that the conductive terminal connects to the outside of the first isolation cylinder through the first opening. The starting point of the creepage distance path is at this first opening, which is located deep inside the first hole, thus relatively extending the creepage distance. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of an exemplary conventional electrical connector provided in an embodiment of this application.

[0017] Figure 2 This is an isometric schematic diagram of an electrical connector provided in an embodiment of this application.

[0018] Figure 3 for Figure 2 An exploded view of the electrical connector shown.

[0019] Figure 4 for Figure 3 The front view of the electrical connector shown.

[0020] Figure 5 for Figure 4 The electrical connector shown is a cross-sectional view along line AA.

[0021] Figure 6 for Figure 2 An exploded view of a plug component in the electrical connector shown.

[0022] Figure 7 for Figure 5 A cross-sectional view of a plug component in the electrical connector shown.

[0023] Figure 8 for Figure 2 An exploded view of another plug component in the electrical connector shown.

[0024] Figure 9 for Figure 5 A cross-sectional view of another plug component in the electrical connector shown.

[0025] Reference numerals: 10, plug-in component; 20, insulator; 21, mounting hole; 30, terminal; 100, support member; 101, first end; 102, second end; 103, third hole; 110, support body; 111, first hole; 120, second isolation cylinder; 121, second hole; 122, second opening; 130, second step portion; 140, limiting plate; 141, through hole; 142, guide hole section; 200, cover plate; 201, first step portion; 202, third step portion; 210, cover body; 220, first isolation cylinder; 221, first opening; 230, wire through hole; 300, conductive terminal; 310, protruding structure. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Traditional electrical connectors typically consist of an insulator and terminals. The terminals pass through the insulator, which provides support and insulation for the terminals. Creepage distance refers to the shortest path length between two terminals along the surface of the insulator, and it is one of the important factors affecting the performance of electrical connectors. Among these factors, [the text abruptly ends here, likely due to an incomplete sentence or missing information]. Figure 1 The insulator 20 has a mounting hole 21, and the terminal 30 passes through the mounting hole 21. For example... Figure 1 As shown in L1, in a conventional electrical connector, the creepage distance path of adjacent terminals 30 extends along the wall of the mounting hole 21 to the end face of the insulator, and then enters another mounting hole 21 through the end face. In conventional designs, to meet electrical safety standards, the spacing between terminals 30 is typically increased to improve the creepage distance. However, such a design results in a significant increase in the size of the electrical connector, making its structure bulky and restricting the application environment of the electrical connector.

[0033] To address the aforementioned issues, this application provides a plug-in component, comprising a support member, a cover plate, and conductive terminals. The support member has a first hole, through which the conductive terminals pass. The cover plate includes a first insulating cylinder, which is fitted over the conductive terminals. Compared to conventional technologies where the creepage path of the terminals extends directly along the wall of the mounting hole to the end face of the insulator, in this application, the conductive terminals are isolated and protected by the first insulating cylinder. Therefore, the creepage path no longer extends directly from the end of the conductive terminal closest to the end face of the support member (i.e., the tail end) to the end face of the support member. Instead, it extends from the first opening of the first insulating cylinder along the outer wall of the first insulating cylinder, thereby relatively extending the creepage path. This increased creepage distance allows for a higher number of conductive terminals per unit area within the support, balancing the space occupied by the plug-in component with the number of conductive terminals.

[0034] It should be noted that, in order to illustrate the different ends of the conductive terminals in each embodiment, the end of a conductive terminal used to be plugged into another conductive terminal is referred to as the head end, and the end of a conductive terminal used to be connected to a cable is referred to as the tail end, with the head end and tail end being arranged opposite to each other.

[0035] See Figure 2 and Figure 3 , Figure 2 This paper shows an isometric schematic diagram of an electrical connector provided in one embodiment of the present application. Figure 3 for Figure 2 The diagram shows an exploded view of the electrical connector. One embodiment of this application provides an electrical connector including a plug portion 10 and a mating portion. The plug portion 10 is mated to the mating portion and electrically connected. One of the plug portion 10 and the mating portion can be used in a male connector, and the other can be used in a female connector.

[0036] Furthermore, the plug-in component can be configured to have the same or similar structure as the plug-in component 10, that is, the electrical connector may include two plug-in components 10. In other words, the electrical connectors provided in the embodiments of this application may include at least one plug-in component 10. It should be noted that when the plug-in component and the plug-in component 10 have the same or similar structure, their conductive terminals 300 may be configured with different shapes for mating.

[0037] Please see Figure 4 and Figure 5 Combined Figure 3 An embodiment of this application provides a plug-in component 10 including a support member 100, a cover plate 200, and conductive terminals 300. The conductive terminals 300 pass through the support member 100, and the cover plate 200 is plugged into the support member 100. The support member 100 has a first end 101 and a second end 102 disposed opposite to each other. The first end 101 is used for plugging into a plug-in component, and the second end 102 has a plurality of first holes 111. The first holes 111 communicate with the first end 101 to facilitate the conductive terminals 300 extending to the first end 101 and plugging into the plug-in component, or to facilitate the conductive terminals 300 of the plug-in component being inserted into the first holes 111 from the first end 101. The cover plate 200 includes a cover body 210 and a first isolation cylinder 220, and the cover body 210 is connected to the first isolation cylinder 220. The cover body 210 abuts against the second end 102, and the plurality of first isolation cylinders 220 are arranged at intervals. Furthermore, one end of each of the plurality of first isolation cylinders 220 is connected to the cover 210, and the other end is inserted into the first hole 111 and has a first opening 221. A plurality of conductive terminals 300 are correspondingly inserted into the plurality of first isolation cylinders 220 and located within the corresponding first hole 111 of the first isolation cylinder 220. The cover plate 200 and the support member 100 clamp and fix the conductive terminals 300.

[0038] In the aforementioned plug assembly, multiple conductive terminals 300 are correspondingly disposed within multiple first isolation cylinders 220, and the first isolation cylinders 220 are disposed within the support member 100. Therefore, the conductive terminals 300 are either completely located within the first isolation cylinders 220 or only partially exposed outside the first isolation cylinders 220. Thus, through the enclosing and protective function of the first isolation cylinders 220 and the separating function of the support body 110, the creepage distance between each conductive terminal 300 can be increased, thereby increasing the number of conductive terminals 300 per unit area in the support body 110, balancing the space occupied by the plug component 10 and the number of conductive terminals 300. Figure 7 and Figure 9 As one example, one end of the first isolation cylinder 220 is inserted into the first hole 111, and this end has a first opening 221. The first opening 221 connects to the outside of the first isolation cylinder 220, that is, the conductive terminal 300 is connected to the outside of the first isolation cylinder 220 through the first opening 221. The creepage distance path starts at the first opening 221, and the first opening 221 is located deep inside the first hole 111, thus the creepage distance can be relatively extended.

[0039] Furthermore, compared to the conventional technology that uses an interference fit between the terminal 30 and the insulator 20 for fixing, this application uses the cover plate 200 and the support member 100 to clamp and fix the conductive terminal 300, so that an overly tight abutment fit will not be formed in the first hole 111, reducing local stress concentration and improving the service life and structural stability of the plug component 10.

[0040] Another embodiment of this application provides a plug assembly, which includes a plug component 10 and a housing (not shown in the figures, the same below), with the plug component 10 installed inside the housing. An electrical connector may include at least one plug assembly. When an electrical connector includes two plug assemblies, one plug assembly is configured as a male connector and the other as a female connector. It is understood that regardless of whether the plug assembly is a male or female connector, its plug component 10 may have the support member 100, cover plate 200, and conductive terminal 300 as described above. In this case, adjusting the structure of the conductive terminal 300 allows the male plug assembly to be fitted and plugged into the female plug assembly.

[0041] Please see Figure 6 and Figure 7 As one example, Figure 6 An exploded view of the plug component applied to a male connector (socket) is shown. Figure 7 for Figure 5 The diagram shows a cross-sectional view of the male connector's insertion end component. In one embodiment, the support member 100 includes a support body 110 and a second insulating sleeve 120 connected to the support body 110. The support body 110 has a first end 101 and a second end 102 as described above. The second insulating sleeve 120 is connected to the first end 101 and is used for insertion into the insertion component. The second insulating sleeve 120 communicates with a first hole 111, and a conductive terminal 300 extends into the second insulating sleeve 120. Thus, the second insulating sleeve 120 further provides protection for the conductive terminal 300, increasing the creepage distance. See also... Figure 7It is easy to understand that the first insulating cylinder 220 is inserted into the first hole 111 from the second end 102 of the support body 110, that is, the first insulating cylinder 220 can be fitted over the tail end of the conductive terminal 300. The second insulating cylinder 120 is connected to the first end 101 of the support body 110, and the second insulating cylinder 120 can be fitted over at least a portion of the head end of the conductive terminal 300 to increase the creepage distance between the conductive terminals 300. In other words, compared with conventional technologies (such as... Figure 1 As shown in the diagram, in this embodiment, a second isolation cylinder 120 is connected to the first end 101 of the support 110. The second isolation cylinder 120 is fitted over the conductive terminal 300, so the creepage distance path of the conductive terminal 300 at the first end 101 is no longer simply distributed along the end face of the first end 101. Instead, it starts from the free end of the second isolation cylinder 120, extends through the outer circumferential surface of the second isolation cylinder 120 to the end face of the first end 101, and then along the outer circumferential surface of another second isolation cylinder 120 to the other conductive terminal 300, significantly increasing the creepage distance. In this embodiment, the creepage distance path is as follows: Figure 7 As shown in L2.

[0042] Please see Figure 7 In one embodiment, the free end of the second isolation cylinder 120 has a second opening 122, through which the conductive terminal 300 communicates with the outside. Further, there are multiple second isolation cylinders 120, and the number of first isolation cylinders 220 is the same as the number of first holes 111 and the number of first isolation cylinders 220, to correspondingly connect and allow the conductive terminal 300 to extend and be arranged.

[0043] Combination Figure 5 In one embodiment, for the purpose of fitting and connecting with the second isolation cylinder 120, the plug-in component may be configured with a plurality of corresponding holes (i.e., the third hole 103 mentioned below), the depth of which is the same as or nearly the same as the length of the second isolation cylinder 120, so as to separate adjacent second isolation cylinders 120 and extend the creepage distance path.

[0044] Please continue reading. Figure 7 Combined Figure 5 In one embodiment, the end of the conductive terminal 300 extends out of the second isolation cylinder 120 so as to extend into the plug-in component and make conductive contact with its conductive terminal 300. Of course, in other embodiments, the conductive terminal 300 may also be configured to be retracted into the second isolation cylinder 120, in which case the terminal of the plug-in component can extend into the second isolation cylinder 120 to make conductive contact with the conductive terminal 300 of the plug-in component 10.

[0045] In one embodiment, the cover plate 200 and the support member 100 each have a limiting body. After the cover plate 200 and the support member 110 are inserted, the two limiting bodies abut against the conductive terminal 300 respectively, clamping and fixing the conductive terminal 300.

[0046] Please continue reading. Figure 7 In one embodiment, the second isolation cylinder 120 has a second hole 121 that communicates with the first hole 111. The cover plate 200 has a first stepped portion 201 disposed on the wall of the first hole 111. The support member 100 has a second stepped portion 130 disposed on the wall of the second hole 121, i.e., the second stepped portion 130 is disposed inside the second isolation cylinder 120. The first stepped portion 201 and the second stepped portion 130 are arranged facing each other and both abut against the conductive terminal 300. Thus, when the cover plate 200 and the support member 100 are inserted, the first stepped portion 201 and the second stepped portion 130 can clamp the conductive terminal 300 facing each other to fix the conductive terminal 300.

[0047] It is understood that the first step portion 201 can abut against one end of the conductive terminal 300. In some embodiments, the conductive terminal 300 may also be configured to have a protruding structure 310 on its outer periphery, and the first step portion 201 and the second step portion 130 fix the conductive terminal 300 by clamping the protruding structure 310.

[0048] Please see Figure 8 and Figure 9 As one example, Figure 8 An exploded view of the plug component applied to a female connector (socket) is shown. Figure 9 for Figure 5 The diagram shows a cross-sectional view of the female connector portion of an electrical connector. In one embodiment, the support member 100 has a plurality of third holes 103 corresponding to and communicating with a plurality of first holes 111. The third holes 103 are used for insertion into a connector portion. It is understood that when the electrical connector includes two connector portions 10, the third holes 103 can be used for insertion into the aforementioned second insulating sleeve 120. Since the plurality of third holes 103 are correspondingly connected to the plurality of first holes 111, the creepage distance path at the tip of the conductive terminal 300 can be extended through the third holes 103. In other words, compared to conventional technologies (such as...) Figure 1 As shown in the figure, this embodiment further separates adjacent conductive terminals 300 by configuring the support member 100 to have multiple third holes 103 that are connected to the first hole 111. This makes the creepage distance path of the head end of the conductive terminal 300 no longer extend directly from the first hole 111 to the end face of the first end 101. The creepage distance path of the head end of the conductive terminal 300 also needs to pass through the inner wall of the third hole 103.

[0049] Please see Figure 9 In one embodiment, all conductive terminals 300 are located inside the first isolation cylinder 220. In this case, the first isolation cylinder 220 can fully exert its isolation and protection function and increase the creepage distance between conductive terminals 300.

[0050] Please see Figure 9 In one embodiment, the support member 100 includes a limiting plate 140, with a first hole 111 and a third hole 103 located on opposite sides of the limiting plate 140. The limiting plate 140 has a through hole 141 connecting the first hole 111 and the third hole 103. The cover plate 200 includes a third step portion 202, which is disposed facing the limiting plate 140 and abuts against the conductive terminal 300. Thus, the conductive terminal 300 can be fixed by clamping the third step portion 202 against the limiting plate 140.

[0051] Similarly, the third step portion 202 can abut against one end of the conductive terminal 300. In some embodiments, the conductive terminal 300 may also be configured to have a protruding structure 310 on its outer periphery, and the third step portion 202 and the limiting disk 140 fix the conductive terminal 300 by clamping the protruding structure 310.

[0052] Please continue reading. Figure 9 In one embodiment, the through-hole 141 is used for insertion of a terminal of a mating component. When the electrical connector includes two mating components 10, the through-hole 141 allows insertion of a conductive terminal 300 of another mating component 10. The through-hole 141 has a guide section 142, the inner diameter of which gradually increases in the direction from the side containing the first hole 111 to the side containing the third hole 103, i.e., the through-hole 141 is approximately flared. This arrangement facilitates guiding another conductive terminal 300 through the hole 141 into the first hole 111 so as to make conductive contact with the conductive terminal 300 in the first hole 111.

[0053] It should be understood that, in the above embodiments, the features described when the plug-in component 10 is used as a male connector can be arbitrarily combined with the features described when the plug-in component 10 is used as a female connector, unless otherwise contradictory. For example, when the plug-in component 10 is used in a plug-in assembly as a female connector, the conductive terminal 300 can still be configured to extend into the first isolation cylinder 220 to actively extend into the plug-in component or another plug-in component 10 and plug into its conductive terminal 300.

[0054] Please see Figures 5 to 9 In one embodiment, the cover plate 200 is fixedly connected to the support member 100 to improve the positional stability of the conductive terminal 300 fixed by the two. The fixed connection method between the cover plate 200 and the support member 100 can be configured as any one of interference fit, snap-fit, adhesive connection and welding, which will not be described in detail here.

[0055] Please see Figure 7 and Figure 9In one embodiment, the cover plate 200 further has a wire passage hole 230, which communicates with the first isolation cylinder 220, and one end of the wire passage hole 230 away from the first isolation cylinder 220 communicates with the outside of the plug-in component 10. Cables connected to the conductive terminal 300 can extend through the wire passage hole 230 to the outside of the plug-in component 10 for connection to various electrical devices.

[0056] It is easy to understand that, regarding the assembly of the plug component 10, during assembly, the cable can first be passed through the wire hole 230 into the first isolation cylinder 220, and then through the first opening 221 from the other end of the cover plate 200. At this time, the conductive terminal 300 can be connected to the part of the cable exposed through the first opening 221. Subsequently, the conductive terminal 300 is inserted into the first isolation cylinder 220 and the cover plate 200 and the support member 100 are fastened together to complete the assembly of the plug component 10.

[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 plug-in component, characterized in that, The insertion terminal component includes: A support member having a first end and a second end disposed opposite to each other, the first end being used to insert into a plug-in component, and the second end having a plurality of first holes, the first holes communicating with the first end; A cover plate, the cover plate including a cover body and a first isolation cylinder, the cover body abutting against the second end, a plurality of first isolation cylinders being arranged at intervals with one end connected to the cover body and the other end inserted into the first hole and having a first opening; The conductive terminals are respectively inserted through the first isolation cylinders and located in the first hole to which the first isolation cylinders are inserted. The cover plate and the support member clamp the conductive terminal to fix it in place.

2. The insertion terminal component according to claim 1, characterized in that, The support includes a support body and a second isolation cylinder. The support body has a first end and a second end. The second isolation cylinder is connected to the first end and communicates with the first hole. The conductive terminal extends into the second isolation cylinder. The second isolation cylinder is used to insert with the plug-in component.

3. The insertion terminal component according to claim 2, characterized in that, The second isolation cylinder has a second hole that communicates with the first hole. The cover plate has a first stepped portion that is disposed on the hole wall of the first hole. The support member has a second stepped portion that is disposed on the hole wall of the second hole. The first stepped portion and the second stepped portion are arranged facing each other and both abut against the conductive terminal.

4. The insertion terminal component according to claim 1, characterized in that, The support member has a plurality of third holes, which are connected to a plurality of first holes, and the third holes are used to be inserted into the plug-in component.

5. The insertion terminal component according to claim 4, characterized in that, The support includes a limiting plate, the first hole and the third hole are respectively located on opposite sides of the limiting plate, the limiting plate has a through hole, and the through hole connects the first hole and the third hole; The cover plate includes a third step portion, which is disposed opposite to the limiting plate and both abut against the conductive terminal.

6. The insertion terminal component according to claim 5, characterized in that, The via is used for the insertion of the terminal of the plug-in component. The via has an inlet section, the inner diameter of which gradually increases in the direction from the side where the first hole is located to the side where the third hole is located.

7. The insertion terminal component according to claim 5, characterized in that, All the conductive terminals are located inside the first isolation cylinder.

8. The insertion terminal component according to any one of claims 1 to 7, characterized in that, The cover plate is fixedly connected to the support member; The fixed connection between the cover plate and the support member can be configured as any one of interference fit, snap-fit, adhesive connection and welding.

9. A plug assembly, characterized in that, The plug assembly includes the plug component as described in any one of claims 1 to 8.

10. An electrical connector, characterized in that, The electrical connector includes at least one terminal component as described in any one of claims 1 to 8; or The electrical connector includes the plug assembly as described in claim 9.

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