Plug connector and connector combination
By introducing a stop member into the plug connector, the problem of easy rotation of the cable member during use is solved, and the stable connection between the terminal member and the cable member is achieved.
Patent Information
- Application Number
- CN202411997229.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-03-25
AI Technical Summary
The cable members are easily rotated relative to the housing during assembly and use in the plug connector, resulting in poor stability of the terminals and cable members.
A plug connector is designed, including an insulated housing, terminal assembly, cable assembly and stopper. The stopper ensures that relative rotation of the cable assembly and the housing is prevented by inserting into the first mounting cavity of the insulated housing and includes a stopper and a fastening portion.
It effectively prevents the terminal assembly from rotating relative to the insulating housing, and improves the stability of the cable and terminal parts.
Smart Images
Figure CN119695579A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a plug connector and a connector combination. Background Art
[0002] With the development of new energy vehicle technology, the requirements for the reliability, protection level, vehicle assembly efficiency, and wiring harness production efficiency of high-voltage connectors are becoming increasingly higher, and the requirements for appearance aesthetics are also becoming increasingly higher.
[0003] Cable connectors generally include an outer shell, an inner shell fixed in the outer shell, a plurality of terminal components fixed in the inner shell, and a cable component with one end implanted in the outer shell, and the end of the cable component is electrically connected to the plurality of terminal components. However, such connectors have a common problem. After the cable component is assembled into the outer shell and electrically connected to the terminal components, during use and docking with the docking connector, the cable component often rotates relative to the outer shell due to angle adjustment and operator operation, which results in poor retention stability of the cable component and the terminal component.
[0004] Therefore, it is necessary to design a new solution to solve the above technical problems. Summary of the invention
[0005] The purpose of the present application is to provide a plug connector and a connector combination, which can prevent the terminal assembly from rotating relative to the insulating housing.
[0006] To achieve the above objectives, this application provides the following technical solutions: A plug connector, comprising: The insulating housing is formed with a first installation cavity and a second installation cavity which are interconnected, one end of the first installation cavity forms a first installation opening, and one end of the second installation cavity forms a second installation opening; A terminal assembly, comprising an insulating inner shell and a plurality of terminals fixedly connected to the insulating inner shell, wherein the terminal assembly is assembled into the first installation cavity through a first installation opening; A cable assembly, which is assembled from the second installation opening into the second installation cavity and has an end portion extending into the first installation cavity and electrically connected to the plurality of the terminals; The anti-rotation member is inserted into the first installation cavity through the first installation opening, and comprises an anti-rotation portion and a fastening portion that are fixedly connected, wherein the fastening portion is implanted in the second installation cavity at a position adjacent to the first installation cavity and is sleeved and fastened to the periphery of the cable assembly, wherein the anti-rotation portion is arranged in the first installation cavity at a position adjacent to the second installation cavity: A stop portion is formed on the inner wall surface of the first installation cavity, and the rotation-stopping member is in contact with the stop portion and is configured to be unable to rotate relative to the insulating housing.
[0007] Furthermore, the inner wall surface of the first installation cavity includes a planar bottom wall surface directly facing the first installation opening and a planar side wall surface arranged at an angle to the bottom wall surface; The anti-rotation portion includes a flat bottom plate portion bonded to the bottom wall surface and a flat side plate portion integrally connected to the bottom plate portion and bonded to the side wall surface.
[0008] Furthermore, the side wall surface is formed with two and intersects with the left and right sides of the bottom wall surface respectively; The side panels are formed with two and are respectively connected to the left and right sides of the bottom panel, and the two side panels are respectively and correspondingly attached to the two side wall surfaces.
[0009] Furthermore, the side wall surface is perpendicular to the bottom wall surface.
[0010] Furthermore, the inner wall surface of the first installation cavity further includes end wall surfaces respectively intersecting with the front and rear sides of the bottom wall surface, and two end wall surfaces are formed, each of the end wall surfaces is perpendicular to the bottom wall surface, and each of the end wall surfaces is perpendicular to the side wall surface; The second installation cavity is recessed and formed on the end wall surface.
[0011] Furthermore, it also includes: A buckle wall, one end of which is integrally connected to the outer surfaces of the left and right ends of the insulating inner shell, and the other end of which is cantilevered and formed with a hook portion; A deformation gap is formed between the buckle wall and the outer surfaces of the left and right ends of the corresponding insulating inner shell; A matching groove is formed concavely on the side wall surface of the insulating housing and is open toward the first installation opening; The buckle portion is formed in the matching groove. When the terminal assembly is assembled into the first installation cavity through the first installation port, the buckle wall is correspondingly matched and accommodated in the matching groove. The hook portion is correspondingly locked with the buckle portion and is configured to prevent the terminal assembly from detaching from the insulating shell.
[0012] Furthermore, the buckle portion is a groove that is further recessed inward from the inner wall surface of the matching groove.
[0013] Furthermore, it also includes: A locking arm is formed on the outer surfaces of the left and right sides of the insulating housing, the locking arm comprising a middle section, an operating section further extended from the front end of the middle section along the insertion direction of the docking connector, and a locking section further extended from the rear end of the middle section along the insertion direction of the docking connector; Connecting arms, on both sides of the middle section, integrally connecting the middle section with the outer surfaces of the left and right sides of the insulating shell; A deformation space is formed between the middle section and the outer surfaces of the left and right sides of the insulating shell; When the operating section is pressed toward the outer surface close to the insulating shell, the locking arm can swing toward the outer surface away from the insulating shell.
[0014] To achieve the above objectives, the present application also provides the following technical solutions: A connector assembly, comprising the plug connector as described above, and further comprising: A docking connector, formed with a housing member and a docking terminal combined in the housing member; The outer shell member comprises a base, a ring wall docking portion further extended from one end surface of the base, and a docking lock arm integrally connected to one end surface of the base; The ring wall docking portion and the base portion jointly define a docking cavity that is open at one end, and one end of each docking terminal protrudes into the docking cavity in a cantilever shape; One end of the docking lock arm is integrally connected to the base, and the other end of the docking lock arm is cantilevered. The docking lock arm is located outside the annular wall docking portion and is spaced apart from the outer surface of the annular wall docking portion. When the docking connector is docked with the plug connector, the locking section of the locking arm can be locked with the docking locking arm and is configured to prevent the docking connector from being separated from the plug connector.
[0015] Furthermore, it also includes: A docking ring cavity, which is recessed and formed on the front end surface of the insulating housing along the docking direction and is located at a position around the outer circumference of the first installation cavity; A waterproof ring, which is fixed on the outer periphery of the butt joint of the ring wall; When the docking connector is docked with the plug connector, the ring wall docking portion is correspondingly inserted into the docking ring cavity, and the waterproof ring is confined in the docking ring cavity.
[0016] Compared with the prior art, the beneficial effect of the present application is that it can prevent the terminal assembly from rotating relative to the insulating housing. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional schematic diagram of the electrical connector combination of the present application, specifically showing a three-dimensional schematic diagram after the plug connector and the docking connector are docked.
[0018] Figure 2 It is a three-dimensional schematic diagram of the electrical connector assembly of the present application, specifically showing a three-dimensional schematic diagram of the plug connector and the docking connector before docking.
[0019] Figure 3 It is a three-dimensional schematic diagram of the plug connector of the present application.
[0020] Figure 4It is a partial three-dimensional exploded view of the plug connector of the present application, mainly showing the matching relationship between the anti-rotation part and the insulating shell.
[0021] Figure 5 yes Figure 4 A magnified view of the structure within the dashed box.
[0022] Figure 6 It is a bottom view of the plug connector of the present application.
[0023] Figure 7 This application plug connector is Figure 6 The cross-sectional view along line AA specifically shows the cross-sectional view after the cable assembly and the terminal assembly are separated from the insulating housing, and when the anti-rotation part is matched with the insulating housing.
[0024] Figure 8 This application plug connector is Figure 6 Sectional view along line BB. DETAILED DESCRIPTION
[0025] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0026] In the description of this application, it should be understood that the terms "include" and "have" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.
[0027] Please refer to Figure 1 and Figure 2 As shown in FIG. 1 , a connector assembly disclosed in the present application includes a plug connector 100 and a docking connector 500 (or a socket connector) that are mated with each other. Figures 3 to 8 As shown, the plug connector 100 includes an insulating housing 1, a terminal assembly 2, a cable assembly 3 and a rotation stop 4. Specifically, the insulating housing 1 is formed with a first mounting cavity 101 and a second mounting cavity 102 that are connected to each other, one end of the first mounting cavity 101 forms a first mounting opening 1011, and one end of the second mounting cavity 102 forms a second mounting opening 1021. The insulating housing 1 in the embodiment of the present application is generally L-shaped, wherein the first mounting cavity 101 and the second mounting cavity 102 are generally vertically connected.
[0028] Furthermore, the terminal assembly 2 is provided with an insulating inner shell 21 and a plurality of terminals 22 fixedly combined with the insulating inner shell 21. The terminal assembly 2 is assembled into the first installation cavity 101 through the first installation opening 1011. The anti-rotation member 4 is inserted and installed into the first installation cavity 101 through the first installation opening 1011, and includes a fixedly connected anti-rotation portion 41 and a fastening portion 42 (in the illustrated embodiment, the anti-rotation portion 41 and the fastening portion 42 are a one-piece structure). One end of the cable assembly 3 is assembled into the second installation cavity 102 through the second installation opening 1021, and the end portion extends into the first installation cavity 101 and is electrically connected to the plurality of terminals (22). The fastening portion 42 is implanted in the second installation cavity 102 at a position adjacent to the first installation cavity 101 and is sleeved and fastened to the periphery of the cable assembly 3. The anti-rotation portion 41 is assembled in the first installation cavity 101 at a position adjacent to the second installation cavity 102.
[0029] Please refer to Figures 3 to 5 , Figure 7 and Figure 8 As shown, a stop portion (not numbered) is formed on the inner wall surface of the first installation cavity 101, and the rotation stop member 41 is in contact with the stop portion (not numbered) and is configured to be unable to rotate relative to the insulating housing 1. The stop portion and the rotation stop member 41 cooperate to prevent the cable assembly 3 from rotating relative to the insulating housing 1.
[0030] In a preferred embodiment, the inner wall surface of the first installation cavity 101 includes a planar bottom wall surface 1012 directly opposite to the first installation opening 1011 and a planar side wall surface 1013 arranged at an angle to the bottom wall surface 1012. The anti-rotation portion 41 includes a flat bottom plate portion 411 attached to the bottom wall surface 1012 and a flat side plate portion 412 integrally connected to the bottom plate portion 411 and attached to the side wall surface 1013.
[0031] In a preferred embodiment, the side wall surface 1013 is formed with two and intersects with the left and right sides of the bottom wall surface 1012 respectively. The side plate portion 412 is formed with two and is connected with the left and right sides of the bottom plate portion 411 respectively, and the two side plate portions 412 are respectively correspondingly attached to the two side wall surfaces 1013. In a preferred embodiment, the side wall surface 1013 is perpendicular to the bottom wall surface 1012.
[0032] Furthermore, the inner wall surface of the first installation cavity 101 further includes end wall surfaces 1014 respectively intersecting with the front and rear sides of the bottom wall surface 1012, and two end wall surfaces 1014 are formed, each of which is perpendicular to the bottom wall surface 1012, and each of which is perpendicular to the side wall surface 1013. The second installation cavity 102 is recessed in the end wall surface 1014, and the second installation cavity 102 passes through the second installation cavity 102 and the outside.
[0033] It should be noted that, in the present application, the above-mentioned connection does not specifically refer to completely close contact without gaps, but also includes the situation where there is a small gap between the two (such as between the bottom plate portion 411 and the bottom wall surface 1012, and between the side plate portion 412 and the side wall surface 1013) instead of completely close contact; for example, when there is an assembly tolerance, or the bottom plate portion 411 and / or the side plate portion 412 does not meet the design requirements for their own flatness, or cannot completely match the flatness of the corresponding bottom wall surface 1012 and the side wall surface 1013; even so, it is also possible to achieve the effect of preventing the cable assembly 3 from rotating relative to the insulating housing 1 in the present application. Similarly, the relative rotation in the present application does not specifically refer to the situation where relative rotation cannot be achieved in theory. Precisely because of the existence of the above-mentioned flatness, design tolerance, etc., the cable assembly 3 in the present application cannot rotate relative to the insulating housing 1, and the anti-rotation member 41 does not exceed its maximum deformation bearing capacity, and the cable assembly 3 rotates no more than 15 degrees relative to the insulating housing 1, which meets the innovative purpose of the present application.
[0034] Please refer to Figure 3 , Figure 4 and Figure 7 As shown, the terminal assembly 2 is also formed with a snap wall 23. One end of the snap wall 23 is integrally connected to the outer surfaces of the left and right ends of the insulating inner shell 21, and the other end is cantilevered and formed with a snap hook portion 231. A deformation gap 230 is formed between the snap wall 23 and the outer surfaces of the left and right ends of the corresponding insulating inner shell 21. A matching groove 1017 is formed on the side wall surface 1013 of the insulating shell 1, and the matching groove 1017 is open to the first installation port (1011). A snap portion 1015 is formed in the matching groove 1017. When the terminal assembly 2 is assembled into the first installation cavity 101 through the first installation port 1011. The snap wall 23 is correspondingly matched and accommodated in the matching groove 1017, and the snap hook portion 231 is correspondingly locked with the snap portion 1015 and is configured to prevent the terminal assembly 2 from being separated from the insulating shell 1. In one embodiment, the buckle portion 1015 is a groove that is further sunken inward from the inner wall surface of the matching groove 1017. In one embodiment, the buckle portion 1015 is a convex structure that is further protruded outward from the inner wall surface of the matching groove 1017.
[0035] Please refer to Figures 1 to 8 As shown, locking arms 11 are also formed on the outer surfaces of the left and right sides of the insulating shell 1. The locking arm 11 includes a middle section 111, an operating section 112 further extended from the front end of the middle section 111 along the insertion direction of the docking connector 500, and a locking section 113 further extended from the rear end of the middle section 111 along the insertion direction of the docking connector 500. And by setting two connecting arms 12, the middle section 111 is integrally connected with the outer surfaces of the left and right sides of the insulating shell 1 on both sides of the middle section 111. A deformation space 110 is formed between the middle section 111 and the outer surfaces of the left and right sides of the insulating shell 1. When the operating section 112 is pressed toward the outer surface close to the insulating shell 1, the locking arm 11 can swing toward the outer surface away from the insulating shell 1. The locking arm 11 is mainly used for locking and fixing the plug connector 100 and the docking connector 500 after docking.
[0036] Please refer to Figure 1 and Figure 2 As shown, the docking connector 500 is formed with a shell member 51 and a docking terminal 52 combined in the shell member 51. The shell member 51 includes a base 511, a ring wall docking portion 512 further extended from one end surface of the base 511, and a docking lock arm 513 integrally connected to one end surface of the base 511. The ring wall docking portion 512 and the base 511 jointly define a docking cavity 510 opened to one end, and one end of each of the docking terminals 52 protrudes into the docking cavity 510 in a cantilevered shape. One end of the docking lock arm 513 is integrally connected to the base 511, and the other end of the docking lock arm 513 is in a cantilevered shape. The docking lock arm 513 is located outside the ring wall docking portion 512 and is spaced apart from the outer surface of the ring wall docking portion 512. When the docking connector 500 is docked with the plug connector 100 , the locking section 113 of the locking arm 11 can be locked with the docking locking arm 513 and is configured to prevent the docking connector 500 from being separated from the plug connector 100 .
[0037] In a preferred embodiment of the present application, the free end of the locking segment 113 protrudes toward the outer surface corresponding to the insulating shell 1 to form a docking hook portion 1131, and the free end of the docking lock arm 513 protrudes toward the side away from the ring wall docking portion 512 to form a matching hook portion 5131. When the docking connector 500 is docked with the plug connector 100, the docking hook portion 1131 is locked and fixed with the matching hook portion 5131. In a preferred embodiment, the free end of the docking lock arm 513 can also achieve elastic swing (with the end of the docking lock arm 513 connected to the base 511 as a fulcrum). During the entire process of the docking connector 500 and the plug connector 100, the free end of the docking lock arm 513 will first swing toward the side of the outer surface corresponding to the insulating shell 1 after being inserted into the deformation space 110, and the synchronous locking segment 113 will first swing toward the side of the outer surface corresponding to the insulating shell 1 away from the insulating shell 1; then the free end of the docking lock arm 513 will abut against the insulating shell 1. During this process, the locking segment 113 still swings toward the side of the outer surface corresponding to the insulating shell 1 away from the docking connector 500 and the plug connector 100; until the docking connector 500 and the plug connector 100 are docked, the free end of the docking locking arm 513 will swing back toward the side of the outer surface corresponding to the insulating shell 1 away from the insulating shell 1, and the synchronous locking segment 113 will swing back toward the side of the outer surface corresponding to the insulating shell 1, and the docking hook portion 1131 and the matching hook portion 5131 will be locked; thereby finally achieving the locking of the docking connector 500 and the plug connector 100.
[0038] Furthermore, the front end surface of the insulating housing 1 along the docking direction is also recessed to form a docking ring cavity 1016, and the docking ring cavity 1016 is located at a position around the outer periphery of the first installation cavity 101. A waterproof ring 53 (such as a silicone waterproof ring) is fixed to the outer periphery of the ring wall docking portion 512. When the docking connector 500 is docked with the plug connector 100, the ring wall docking portion 512 is correspondingly inserted into the docking ring cavity 1016, and the waterproof ring 53 is confined in the docking ring cavity 1016 to achieve a waterproof function. Of course, in a preferred embodiment, a waterproof ring 54 (such as a silicone waterproof ring) can also be provided between the outer periphery of the cable assembly 3 and the inner wall surface of the second installation cavity 102 to achieve a waterproof function.
[0039] The following briefly introduces the assembly method of the plug connector of the present application, which includes the following steps: Step 1: insert the cable assembly 3 from the second installation opening 1021 and pass through the second installation cavity 102 and the first installation cavity 101 in sequence and then pass through the first installation opening 1011 .
[0040] Step 2: Lock the anti-rotation member 4 on the cable assembly 3 (that is, fasten it around the outer periphery of the cable assembly 3 by means of the fastening portion 42), and then electrically connect the free end wire of the cable assembly 3 to the terminal assembly 2 (the free end wire of the cable assembly 3 can be fastened to the docking terminal 52 first, and then the docking terminal 52 is inserted and assembled into the insulating inner shell 21).
[0041] Step 3: Pull back the cable assembly 3 so that the cable assembly 3 withdraws a part of its length from the second installation port 1021, and the fastening portion 42 is simultaneously implanted into the first installation cavity 101 through the first installation port 1011; then adjust the position so that the fastening portion 42 is implanted into the second installation cavity 102 at a position adjacent to the first installation cavity 101, and synchronously, the anti-rotation portion 41 is arranged in the first installation cavity 101 at a position adjacent to the second installation cavity 102, until the side panel portions 412 are respectively attached to the side wall surfaces 1013, and the bottom panel portions 411 are respectively attached to the bottom wall surfaces 1012.
[0042] Step 4: Finally, the terminal assembly 2 is implanted into the first installation cavity 101 through the first installation opening 1011 until the locking arm 11 is locked with the docking locking arm 513 .
[0043] Of course, the assembly method can also be the following steps: Step 1: insert the cable assembly 3 from the second installation opening 1021 and pass through the second installation cavity 102 and the first installation cavity 101 in sequence and then pass through the first installation opening 1011 .
[0044] Step 2: Lock the anti-rotation member 4 on the cable assembly 3 (that is, fasten the fastening portion 42 around the outer periphery of the cable assembly 3 ).
[0045] Step 3: Pull back the cable assembly 3 so that the cable assembly 3 withdraws a part of its length from the second installation port 1021, and the fastening portion 42 is simultaneously implanted into the first installation cavity 101 through the first installation port 1011; then adjust the position so that the fastening portion 42 is implanted into the second installation cavity 102 at a position adjacent to the first installation cavity 101, and synchronously, the anti-rotation portion 41 is arranged in the first installation cavity 101 at a position adjacent to the second installation cavity 102, until the side panel portions 412 are respectively attached to the side wall surfaces 1013, and the bottom panel portions 411 are respectively attached to the bottom wall surfaces 1012.
[0046] Step 4: electrically connect the free end wire of the cable assembly 3 to the terminal assembly 2 (the free end wire of the cable assembly 3 and the docking terminal 52 may be fastened first, and then the docking terminal 52 is inserted and assembled into the insulating inner shell 21).
[0047] Step 5: Then implant the terminal assembly 2 into the first installation cavity 101 through the first installation opening 1011 until the locking arm 11 is locked with the docking locking arm 513 .
[0048] Of course, due to the structure of the plug connector of the present application, in a preferred embodiment, the first installation cavity 101 reserves a portion of space near the second installation cavity 102 ( Figure 8 As can be seen from the diagram, that is, the space portion between the bottom plate portion 411 and the insulating inner shell 21 is used to accommodate the end area of the cable assembly 3.
[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present design, rather than to limit it. Although the present design has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present design.
[0050] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A plug connector, comprising: An insulating housing (1) is formed with a first installation cavity (101) and a second installation cavity (102) which are connected to each other, one end of the first installation cavity (101) forming a first installation opening (1011), and one end of the second installation cavity (102) forming a second installation opening (1021); A terminal assembly (2) comprising an insulating inner shell (21) and a plurality of terminals (22) fixedly coupled to the insulating inner shell (21), wherein the terminal assembly (2) is assembled into the first installation cavity (101) via a first installation opening (1011); A cable assembly (3) which is assembled into the second installation cavity (102) via the second installation opening (1021) and has an end portion extending into the first installation cavity (101) and electrically connected to the plurality of terminals (22); The anti-rotation member (4) is inserted into the first installation cavity (101) through the first installation opening (1011) and installed, and comprises an anti-rotation portion (41) and a fastening portion (42) that are fixedly connected, wherein the fastening portion (42) is implanted in a position adjacent to the first installation cavity (101) in the second installation cavity (102) and is sleeved and fastened to the periphery of the cable assembly (3), wherein the anti-rotation portion (41) is arranged in a position adjacent to the second installation cavity (102) in the first installation cavity (101), and is characterized in that: A stop portion (unnumbered) is formed on the inner wall surface of the first installation cavity (101), and the rotation-stopping member (41) is in contact with the stop portion (unnumbered) and is configured to be unable to rotate relative to the insulating housing (1).
2. The plug connector according to claim 1, characterized in that: The inner wall surface of the first installation cavity (101) comprises a planar bottom wall surface (1012) directly opposite to the first installation opening (1011) and a planar side wall surface (1013) arranged at an angle to the bottom wall surface (1012); The anti-rotation portion (41) comprises a flat bottom plate portion (411) bonded to the bottom wall surface (1012) and a flat side plate portion (412) integrally connected to the bottom plate portion (411) and bonded to the side wall surface (1013).
3. The plug connector according to claim 2, wherein: The side wall surfaces (1013) are formed with two sides and intersect with the left and right sides of the bottom wall surface (1012) respectively; The side plate parts (412) are formed in two and are respectively connected to the left and right sides of the bottom plate part (411), and the two side plate parts (412) are respectively and correspondingly attached to the two side wall surfaces (1013).
4. The plug connector according to claim 2, wherein: The side wall surface (1013) is perpendicular to the bottom wall surface (1012).
5. The plug connector according to claim 3, characterized in that: The inner wall surface of the first installation cavity (101) further comprises end wall surfaces (1014) respectively intersecting with the front and rear sides of the bottom wall surface (1012), and two end wall surfaces (1014) are formed, each of the end wall surfaces (1014) is perpendicular to the bottom wall surface (1012), and each of the end wall surfaces (1014) is perpendicular to the side wall surface (1013); The second installation cavity (102) is recessed and formed in the end wall surface (1014).
6. The plug connector according to claim 3, characterized in that: Also includes: A buckle wall (23), one end of which is integrally connected to the outer surfaces of the left and right ends of the insulating inner shell (21), and the other end of which is cantilevered and formed with a hook portion (231); A deformation gap (230) is formed between the buckle wall (23) and the outer surfaces of the left and right ends of the corresponding insulating inner shell (21); A matching groove (1017) is formed concavely on the side wall surface (1013) of the insulating housing (1) and is open toward the first installation opening (1011); The buckle portion (1015) is formed in the matching groove (1017). When the terminal assembly (2) is assembled into the first installation cavity (101) through the first installation opening (1011), the buckle wall (23) is correspondingly matched and accommodated in the matching groove (1017). The hook portion (231) is correspondingly locked with the buckle portion (1015) and is configured to prevent the terminal assembly (2) from being separated from the insulating housing (1).
7. The plug connector according to claim 6, characterized in that: The buckle portion (1015) is a groove that is further recessed inward from the inner wall surface of the matching groove (1017).
8. The plug connector according to any one of claims 1 to 7, characterized in that: Also includes: A locking arm (11) formed on the outer surfaces of the left and right sides of the insulating housing (1), the locking arm (11) comprising a middle section (111), an operating section (112) further extended from the front end of the middle section (111) along the insertion direction of the docking connector, and a locking section (113) further extended from the rear end of the middle section (111) along the insertion direction of the docking connector; Connecting arms (12) integrally connect the middle section (111) and the outer surfaces of the left and right sides of the insulating housing (1) on both sides of the middle section (111); A deformation space (110) is formed between the middle section (111) and the outer surfaces on the left and right sides of the insulating shell (1); When the operating section (112) is pressed toward an outer surface close to the insulating housing (1), the locking arm (11) can swing toward an outer surface away from the insulating housing (1).
9. A connector assembly, comprising the plug connector according to claim 8, characterized in that: Also includes: A docking connector (500) is formed with a housing member (51) and a docking terminal (52) combined in the housing member (51); The outer shell (51) comprises a base (511), a ring wall docking portion (512) further extended from one end surface of the base (511), and a docking locking arm (513) integrally connected to one end surface of the base (511); The ring wall docking portion (512) and the base portion (511) jointly define a docking cavity (510) that is open at one end, and one end of each docking terminal (52) protrudes into the docking cavity (510) in a cantilevered shape; One end of the docking lock arm (513) is integrally connected to the base (511), and the other end of the docking lock arm (513) is cantilevered. The docking lock arm (513) is located outside the ring wall docking portion (512) and is spaced apart from the outer surface of the ring wall docking portion (512); When the docking connector (500) is docked with the plug connector (100), the locking section (113) of the locking arm (11) can be locked with the docking locking arm (513) and is configured to prevent the docking connector (500) from being separated from the plug connector (100).
10. The connector assembly according to claim 9, characterized in that: Also includes: A docking ring cavity (1016), which is recessed and formed on the front end surface of the insulating housing (1) along the docking direction and is located at a position around the outer circumference of the first installation cavity (101); A waterproof ring (53) arranged and fixed on the outer periphery of the ring wall butt joint (512); When the docking connector (500) is docked with the plug connector (100), the ring wall docking portion (512) is correspondingly inserted into the docking ring cavity (1016), and the waterproof ring (53) is confined within the docking ring cavity (1016).