First connector, second connector and connector assembly

Abstract

The utility model discloses a first connector, a second connector and a connector assembly. The connector assembly comprises the first connector and the second connector which are detachably connected. The first connector comprises a first shell and at least one first terminal arranged in the first shell; the first shell comprises a first outer shell and a first inner shell arranged in the first outer shell in a sleeved mode, the first inner shell is provided with at least one first containing cavity capable of containing the first terminals in a penetrating mode in the length direction of the first inner shell, and the side, facing the first outer shell, of the first containing cavity is provided with a first opening formed in the length direction of the first containing cavity; and the inner wall of the first outer shell protrudes towards the direction close to the first inner shell to form a first pressing part which can penetrate through the first opening to press the first terminal in the first accommodating cavity. And the second connector comprises a second shell and at least one second terminal which is arranged in the second shell and can be matched and plugged with the first terminal to realize electric connection.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a first connector, a second connector and a connector assembly. Background Art

[0002] In the existing connector plastic housing, the step surface for holding the terminal is manufactured by forced demoulding. This method will damage the step surface, resulting in the terminal being unable to hang on the step surface, and the holding force cannot meet the requirements. In addition, the qualified rate and production stability of the plastic housing are not high, and it is not convenient to inspect. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the utility model is to provide a first connector, a second connector and a connector assembly, which solves the problem that the terminal cannot be well fixed due to scratching the step surface due to forced removal by openings on the side of the inner shell and fixing the terminal by the outer shell and the inner shell, improves the stability and yield rate of the product, and facilitates lateral inspection of the step surface condition and the interference between the terminal and the step surface.

[0005] (II) Technical solution

[0006] The solution adopted by the utility model to solve the above-mentioned technical problem is a first connector, including a first shell and at least one first terminal arranged in the first shell; the first shell includes a first outer shell and a first inner shell sleeved in the first outer shell, wherein the first inner shell is penetrated along its length direction to form at least one first accommodating cavity capable of accommodating the first terminal, the first accommodating cavity is provided with a first opening arranged along its length direction on one side facing the first shell, and the inner wall of the first shell is protruded toward the direction close to the first inner shell to form a first pressing portion capable of passing through the first opening to press the first terminal into the first accommodating cavity.

[0007] In some embodiments, the first receiving cavity extends along the length direction of the first inner shell and passes through both ends of the first inner shell; the first opening is arranged along the length direction of the first receiving cavity and passes through the part of the first receiving cavity placed in the first outer shell; the first inner shell portion extends out of the first outer shell on one side of its plug-in end.

[0008] In some embodiments, part of the outer wall of the first inner shell abuts against the inner wall of the first outer shell, and a first receiving portion is provided at a portion of the first inner shell close to the plug-in end of the first connector, and a cavity is provided inside the first receiving portion, which is a partial cavity of the first receiving cavity; and when there are multiple first terminals, multiple first receiving portions are provided at intervals; and a first groove is provided at a portion where the first inner shell abuts against the first outer shell, and correspondingly, the first outer shell is provided with a first rib that can be engaged in the first groove, and the first rib and the first pressing portion are arranged along the circumferential direction of the first outer shell to ensure uniform force, so that the connection between the first outer shell and the first inner shell is more stable.

[0009] In some embodiments, the inner wall of the first receiving cavity is provided with a first step surface along the circumferential direction, and the outer peripheral wall of the first terminal at least partially extends outward to form a first abutting surface capable of abutting against the first step surface to limit axial separation of the first terminal.

[0010] In some embodiments, the inner wall of the first pressing portion is provided with a third step surface along the annular direction that can be connected with both ends of the first step surface, and the first terminal is provided with multiple first abutting surfaces along the circumferential direction to achieve the stability of the first terminal on the first inner shell and the first outer shell.

[0011] In some embodiments, the inner wall of the first accommodating cavity is at least partially recessed inward to form a first recess, and the first step surface is formed on the side of the first recess facing away from the plug-in end of the first connector; and the outer peripheral wall of the first terminal is at least partially protruded outward to form a first protrusion, and the first protrusion is formed on the side facing away from the plug-in end of the first connector. The first abutment surface.

[0012] In some embodiments, the inner wall portion of the first pressing portion is concave to form a third recess connected to both ends of the first recess, and the first terminal is provided with a plurality of the first protrusions along the circumferential direction to achieve stability of the first terminal on the first inner shell and the first outer shell.

[0013] With the above solution, the first protrusion and the first recess cooperate with each other, and the first step surface and the first abutting surface cooperate to limit the axial separation of the first terminal in the first inner shell and the first outer shell, thereby ensuring the stability of the first terminal.

[0014] In some embodiments, a first cable is further included that is at least partially capable of extending into the first receiving cavity and connected to the first terminal, and the first cable is connected to a side of the first terminal that is away from the plug-in end of the first connector.

[0015] In some embodiments, the first pressing portion is formed to extend along the length direction of the first receiving cavity and is capable of just closing the first opening to press the first terminal and the first cable into the first receiving cavity.

[0016] In some embodiments, the outer wall of the first inner shell is at least partially recessed to form a first groove, and the inner wall of the first outer shell is provided with a first limiting portion that can be engaged in the first groove, and the two ends of the first limiting portion along the axial direction are against the two ends of the first groove along the axial direction.

[0017] By adopting the above scheme, one end of the first limiting portion is integrally formed on the first outer shell, and a first clamping portion is extended inward and downward from the end. The first clamping portion is an elastic structure relative to the first outer shell, and a first inclined end surface is formed on the side of the first clamping portion facing away from the first outer shell, which facilitates the disassembly and assembly of the first inner shell on the first outer shell.

[0018] In some embodiments, a first locking member is connected to the outer wall of the first outer shell, and the first locking member can provide the first pressing portion with a force to move radially toward the first inner shell.

[0019] In some embodiments, the first locking member is connected to the first outer shell by a threaded connection. When the first locking member is tightened, the force applied to the first outer shell causes the first pressing portion to move radially toward the first inner shell, so that it can pass through the first opening to firmly press the first terminal and the first cable against the first inner shell, making the connection more stable.

[0020] The solution adopted by the utility model to solve the above-mentioned technical problem is to be adapted to a second connector such as the above-mentioned first connector, wherein the second connector includes a second shell and at least one second terminal arranged in the second shell and capable of being plugged with the first terminal to achieve electrical connection; the second shell includes a second outer shell and a second inner shell sleeved in the second outer shell, wherein the second inner shell is penetrated along its length direction to form a second accommodating cavity capable of accommodating at least one of the second terminals, the second accommodating cavity is provided with a second opening arranged along its length direction on one side facing the second outer shell, and the inner wall of the second outer shell is protruded toward the direction close to the second inner shell to form a second pressing portion capable of passing through the second opening to press the second terminal into the second accommodating cavity.

[0021] In some embodiments, the second receiving cavity extends along the length direction of the second inner shell and passes through both ends of the second inner shell; the second opening is arranged along the length direction of the second receiving cavity and passes through the second receiving cavity; the second receiving cavity portion can cooperate with the second pressing portion to cover the outside of the second terminal; the radial dimension of the second receiving cavity close to the plug-in end of the second connector is larger than the radial dimension of the second terminal, so that part of the second terminal does not contact its inner wall, so that it can adapt to the first receiving portion to achieve the connection between the first terminal and the second terminal.

[0022] In some embodiments, part of the outer wall of the second inner shell abuts against the inner wall of the second outer shell, and a second receiving portion is provided at a portion of the second inner shell close to the plug-in end of the second connector, and a cavity is provided inside the second receiving portion, which is a partial cavity of the second receiving cavity; and when there are multiple second terminals, multiple second receiving portions are provided at intervals; and a second groove is provided at a portion where the second inner shell abuts against the second outer shell, and correspondingly, the second outer shell is provided with a second rib that can be engaged in the second groove, and the second rib and the second pressing portion are arranged along the circumferential direction of the second outer shell to ensure uniform force, so that the connection between the second outer shell and the second inner shell is more stable.

[0023] In some embodiments, the first inner shell is provided with two second slots arranged at intervals, and the first outer shell is provided with two first ribs arranged at intervals; the second inner shell is provided with a second slot, and the second outer shell is provided with a second rib; and the second rib partially extends out of the second slot near the plug-in end of the second connector, then the outer wall of the first outer shell is provided with an avoidance opening for avoiding the second rib, so that the second rib can be engaged in the avoidance opening, thereby limiting the radial movement of the first outer shell and the first inner shell.

[0024] In some embodiments, the inner wall of the second receiving cavity is provided with a second step surface along the annular direction, and the outer peripheral wall of the second terminal at least partially extends outward to form a second abutting surface capable of abutting against the second step surface to limit axial separation of the second terminal.

[0025] In some embodiments, the inner wall of the second pressing portion is provided with a fourth step surface along the annular direction that can be connected with both ends of the second step surface, and the second terminal is provided with multiple second abutting surfaces along the circumferential direction to achieve the stability of the second terminal on the second inner shell and the second outer shell.

[0026] In some embodiments, the inner wall of the second accommodating cavity is at least partially recessed inward to form a second recess, and the second recess is located on a side away from the plug-in end of the second connector to form the second step surface; and the outer peripheral wall of the second terminal is at least partially protruded outward to form a second protrusion, and the second protrusion is located on a side away from the plug-in end of the second connector to form the second abutment surface.

[0027] In some embodiments, the inner wall portion of the second pressing portion is concave to form a fourth recess connected to both ends of the second recess, and the second terminal is circumferentially provided with a plurality of second protrusions to achieve stability of the second terminal on the second inner shell and the second outer shell.

[0028] With the above solution, the cooperation between the second protrusion and the second recess, and the cooperation between the second step surface and the second abutting surface can limit the axial separation of the second sub-shell in the second inner shell and the second outer shell, thereby ensuring the stability of the second terminal.

[0029] In some embodiments, the second cable is further included, which is at least partially capable of extending into the second receiving cavity and connected to the second terminal, and the second cable is connected to a side of the second terminal facing away from the plug-in end of the second connector.

[0030] In some embodiments, the second pressing portion is formed to extend along the length direction of the second receiving cavity, and is capable of pressing the second terminal and the second cable into the second receiving cavity.

[0031] In some embodiments, the outer wall of the second inner shell is at least partially recessed to form a second groove, and the inner wall of the second outer shell is provided with a second limiting portion that can be engaged in the second groove, and the two ends of the second limiting portion along the axial direction are against the two ends of the second groove along the axial direction.

[0032] By adopting the above scheme, one end of the second limiting portion is integrally formed on the second outer shell, and a second clamping portion is extended inward and downward from the end. The second clamping portion is an elastic structure relative to the second outer shell, and a second inclined end surface is formed on the side of the second clamping portion facing away from the second outer shell, which facilitates the disassembly and assembly of the second inner shell on the second outer shell.

[0033] In some embodiments, a second locking member is connected to the outer wall of the second outer shell, and the second locking member can provide the second pressing portion with a force to move radially toward the second inner shell.

[0034] In some embodiments, the second locking member is connected to the second outer shell by a threaded connection. When the second locking member is tightened, the force applied to the second outer shell causes the second pressing portion to move radially toward the second inner shell, so that it can pass through the second opening to firmly press the second terminal and the second cable against the second inner shell, making the connection more stable.

[0035] The solution adopted by the utility model to solve the above technical problem is a connector assembly having the above-mentioned first connector, wherein the connector assembly comprises a first connector and a second connector which are detachably connected.

[0036] In some embodiments, the outer wall of the first connector is provided with two symmetrically arranged elastic clips, and correspondingly, the outer wall of the second connector is provided with two symmetrically arranged clip holes; when the first connector and the second connector are plugged into each other, the elastic clips can be engaged in the clip holes to achieve locking between the first connector and the second connector.

[0037] (III) Beneficial effects

[0038] Compared with the prior art, the utility model designs a first connector, a second connector and a connector assembly, which solves the problem that the terminal cannot be well fixed due to scratching the step surface due to forced removal by openings on the side of the inner shell and fixing the terminal by the outer shell and the inner shell, improves the stability and yield rate of the product, and facilitates lateral inspection of the step surface condition and the interference between the terminal and the step surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 is a schematic diagram of a first connector of Embodiment 1;

[0041] Figure 2 A schematic diagram of the first connector of Embodiment 1 from another angle;

[0042] Figure 3 for Figure 2 Sectional view at AA;

[0043] Figure 4 for Figure 3 The enlarged schematic diagram at C in the middle;

[0044] Figure 5 for Figure 2Sectional view at the middle BB;

[0045] Figure 6 for Figure 5 The enlarged schematic diagram at D in the middle;

[0046] Figure 7 is a schematic diagram of a first housing of Embodiment 1;

[0047] Figure 8 for Figure 7 The enlarged schematic diagram at E in the middle;

[0048] Fig. 9 This is a schematic diagram of assembling the first inner housing, the first terminal and the first cable of the first embodiment;

[0049] Fig.10 for Fig. 9 The enlarged schematic diagram at F in the middle;

[0050] Fig.11 is a schematic diagram of a second connector of Embodiment 2;

[0051] Fig.12 A schematic diagram of the second connector of the second embodiment from another angle;

[0052] Fig.13 for Fig.12 Sectional view at GG in the middle;

[0053] Fig.14 for Fig.13 The enlarged schematic diagram at I in the middle;

[0054] Fig.15 for Fig.12 Sectional view at HH in the middle;

[0055] Fig.16 for Fig.15 The enlarged schematic diagram at J in the middle;

[0056] Fig.17 is a schematic diagram of a second housing of Embodiment 2;

[0057] Fig.18 for Fig.17 The enlarged schematic diagram of K in the middle;

[0058] Fig.19 This is a schematic diagram of the assembly of the second inner housing, the second terminal and the second cable of the second embodiment;

[0059] Fig. 20 for Fig.19 The enlarged schematic diagram at L in the middle;

[0060] Fig.21 is a schematic diagram of a connector assembly of Embodiment 3;

[0061] Fig. 22 It is a cross-sectional view of the connector assembly of the third embodiment.

[0062] The names of the components corresponding to the reference numerals in the figure are: 10, first connector; 11, first housing; 111, first outer shell; 1111, first pressing portion; 1111a, third step surface; 1111b, third recess; 1112, first limiting portion; 1112a, first engaging portion; 1112b, first inclined end surface; 1113, first convex rib; 1114, avoidance; 112, first inner shell; 1121, first receiving cavity; 1121a, first opening; 1121b, first step surface; 1121c, first recess; 1122, first groove; 1123, first receiving portion; 1124, first slot; 12, first terminal; 121, first abutting surface; 122, first protrusion; 13, first cable; 14, a first locking member; 15, an elastic buckle; 20, a second connector; 21, a second shell; 211, a second outer shell; 2111, a second pressing portion; 2111a, a fourth step surface; 2111b, a fourth recess; 2112, a second convex rib; 2113, a second limiting portion; 2113a, a second engaging portion; 2113b, a second inclined end surface; 212, a second inner shell; 2121, a second receiving cavity; 2121a, a second opening; 2121b, a second step surface; 2121c, a second recess; 2121d, a second groove; 2122, a second receiving portion; 2123, a second slot; 22, a second terminal; 221, a second abutting surface; 222, a second protrusion; 23, a second cable; 24, a second locking member; 25, a buckle hole. DETAILED DESCRIPTION

[0063] The following is a further detailed description of the specific implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0064] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0066] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0067] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0068] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0069] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0070] Embodiment 1:

[0071] like Figure 1-Figure 10As shown, this embodiment discloses a first connector, including a first shell 11, and three first terminals 12 arranged in the first shell 11; the first shell 11 includes a first outer shell 111 and a first inner shell 112 sleeved in the first outer shell 111, wherein the first inner shell 112 is penetrated along its length direction to form three first accommodating cavities 1121 capable of accommodating the first terminals 12, and the first accommodating cavity 1121 is provided with a first opening 1121a arranged along its length direction on one side facing the first shell 111, and the inner wall of the first outer shell 111 protrudes toward the direction close to the first inner shell 112 to form a first pressing portion 1111 capable of passing through the first opening 1121a to press the first terminal 12 into the first accommodating cavity 1121.

[0072] In some embodiments, the first receiving cavity 1121 extends along the length direction of the first inner shell 112 and passes through both ends of the first inner shell 112; the first opening 1121a is arranged along the length direction of the first receiving cavity 1121 and passes through the part of the first receiving cavity 1121 placed in the first outer shell 111; the first inner shell 112 partially extends out of the first outer shell 111 on one side of its plug-in end. In some embodiments, part of the outer wall of the first inner shell 112 abuts against the inner wall of the first outer shell 111, and a first receiving portion 1123 is provided at a portion of the first inner shell 112 close to the plug-in end of the first connector 10, and a cavity is provided inside the first receiving portion 1123, which is a partial cavity of the first receiving cavity 1121; in this embodiment, there are three first terminals 12, and correspondingly there are three first receiving portions 1123 arranged at intervals; and a first groove 1124 is provided at a portion of the first inner shell 112 abutting against the first outer shell 111, and correspondingly, the first outer shell 111 is provided with a first rib 1113 that can be engaged in the first groove 1124, and the first rib 1113 and the first pressing portion 1111 are arranged along the circumferential direction of the first outer shell 111 to ensure uniform force, so that the connection between the first outer shell 111 and the first inner shell 112 is more stable. In some embodiments, the inner wall of the first receiving cavity 1121 is provided with a first step surface 1121b along the circumferential direction, and the outer peripheral wall portion of the first terminal 12 extends outward to form a first abutting surface 121 capable of abutting against the first step surface 1121b to limit the axial separation of the first terminal 12. In some embodiments, the inner wall of the first pressing portion 1111 is provided with a third step surface 1111a capable of abutting against both ends of the first step surface 1121b along the circumferential direction, and the first terminal 12 is provided with a plurality of first abutting surfaces 121 along the circumferential direction to achieve the stability of the first terminal 12 on the first inner shell 112 and the first outer shell 111. In some embodiments, the inner wall portion of the first receiving cavity 1121 is recessed inward to form a first recess 1121c, and the first recess 1121c is formed on the side away from the plug-in end of the first connector 10 to form the first step surface 1121b; and the outer peripheral wall portion of the first terminal 12 is protruded outward to form a first protrusion 122, and the first protrusion 122 is formed on the side away from the plug-in end of the first connector 10 to form the first abutting surface 121. In some embodiments, the inner wall portion of the first pressing portion 1111 is recessed inward to form a third recess 1111b connected to both ends of the first recess 1121c, and the first terminal 12 is provided with a plurality of the first protrusions 122 along the circumferential direction to achieve the stability of the first terminal 12 on the first inner shell 112 and the first outer shell 111.By adopting the above scheme, through the cooperation between the first protrusion 122 and the first recess 1121c, and the cooperation between the first step surface 1121b and the first abutment surface 121, the axial separation of the first terminal 12 in the first inner shell 112 and the first outer shell 111 can be limited, thereby ensuring the stability of the first terminal 12.

[0073] In some embodiments, a first cable 13 is partially inserted into the first receiving cavity 1121 and connected to the first terminal 12, and the first cable 13 is connected to a side of the first terminal 12 that is away from the plug-in end of the first connector 10. In some embodiments, the first pressing portion 1111 is formed to extend along the length direction of the first receiving cavity 1121 and is able to just close the first opening 1121a, so as to press the first terminal 12 and the first cable 13 into the first receiving cavity 1121.

[0074] In some embodiments, the outer wall of the first inner shell 112 is partially recessed to form a first groove 1122, and the inner wall of the first outer shell 111 is provided with a first stopper 1112 that can be engaged in the first groove 1122, and the two ends of the first stopper 1112 along the axial direction abut against the two ends of the first groove 1122 along the axial direction. With the above solution, one end of the first stopper 1112 is integrally formed on the first outer shell 111, and the end extends inward and downward to form a first engaging portion 1112a, the first engaging portion 1112a is an elastic structure relative to the first outer shell 111, and the first engaging portion 1112a is formed with a first inclined end surface 1112b on the side away from the first outer shell 111, so as to facilitate the disassembly and assembly of the first inner shell 112 on the first outer shell 111.

[0075] In some embodiments, the outer wall of the first outer shell 111 is connected to a first locking member 14, and the first locking member 14 can give the first pressing portion 1111 a force to move radially toward the first inner shell 112. In some embodiments, the first locking member 14 is connected to the first outer shell 111 by a threaded connection. When the first locking member 14 is tightened, the force on the first outer shell 111 causes the first pressing portion 1111 to move radially toward the first inner shell 112, so that the first pressing portion 1111 can pass through the first opening 1121a to firmly press the first terminal 12 and the first cable 13 against the first inner shell 112, and the connection is more stable.

[0076] Embodiment 2:

[0077] like Figure 11-Figure 20As shown, the present embodiment discloses a second connector adapted to the first connector as described above, wherein the second connector 20 comprises a second shell 21, and three second terminals 22 arranged in the second shell 21 and capable of mating with the first terminals 12 to achieve electrical connection; the second shell 21 comprises a second outer shell 211 and a second inner shell 212 sleeved in the second outer shell 211, wherein the second inner shell 212 is penetrated along its length direction to form three second accommodating cavities 2121 capable of accommodating the second terminals 22, the second accommodating cavities 2121 are provided with a second opening 2121a arranged along its length direction on one side of the second outer shell 211, and the inner wall of the second outer shell 211 is protruded toward the direction close to the second inner shell 212 to form a second pressing portion 2111 capable of passing through the second opening 2121a to press the second terminal 22 into the second accommodating cavity 2121.

[0078] In some embodiments, the second receiving cavity 2121 extends along the length direction of the second inner shell 212 and passes through both ends of the second inner shell 212; the second opening 2121a is arranged along the length direction of the second receiving cavity 2121 and passes through the second receiving cavity 2121; part of the second receiving cavity 2121 can cooperate with the second pressing portion 2111 to cover the outside of the second terminal 22; the radial dimension of the part of the second receiving cavity 2121 close to the plug-in end of the second connector 20 is larger than the radial dimension of the second terminal 22, so that part of the second terminal 22 does not contact its inner wall, so that it can adapt to the first receiving portion 1123 to realize the connection between the first terminal 12 and the second terminal 22. In some embodiments, part of the outer wall of the second inner shell 212 abuts against the inner wall of the second outer shell 211, and a second receiving portion 2122 is provided at a portion of the second inner shell 212 close to the plug-in end of the second connector 20, and a cavity is provided inside the second receiving portion 2122, which is a partial cavity of the second receiving cavity 2121; and if there are three second terminals 22, three second receiving portions 2122 arranged at intervals are provided; and a second groove 2123 is provided at a portion of the second inner shell 212 abutting against the second outer shell 211, and correspondingly, the second outer shell 211 is provided with a second rib 2112 that can be engaged in the second groove 2123, and the second rib 2112 and the second pressing portion 2111 are arranged along the circumferential direction of the second outer shell 211 to ensure uniform force, so that the connection between the second outer shell 211 and the second inner shell 212 is more stable. In some embodiments, the first inner shell 112 is provided with two second slots 2123 arranged at intervals, and the first outer shell 111 is provided with two first ribs 1113 arranged at intervals; the second inner shell 212 is provided with a second slot 2123, and the second outer shell 211 is provided with a second rib 2112; and the second rib 2112 partially extends out of the second slot 2123 near the plug-in end of the second connector 20, and the outer wall of the first outer shell 111 is provided with an escape opening 1114 for avoiding the second rib 2112, so that the second rib 2112 can be engaged in the escape opening 1114, thereby limiting the radial movement of the first outer shell 111 and the first inner shell 112. In some embodiments, the inner wall of the second receiving cavity 2121 is provided with a second step surface 2121b along the annular direction, and the outer peripheral wall portion of the second terminal 22 extends outward to form a second abutting surface 221 that can abut against the second step surface 2121b to limit the axial separation of the second terminal 22.In some embodiments, the inner wall of the second pressing portion 2111 is provided with a fourth step surface 2111a along the circumferential direction that can be connected with both ends of the second step surface 2121b, and the second terminal 22 is provided with a plurality of second abutting surfaces 221 along the circumferential direction to achieve the stability of the second terminal 22 on the second inner shell 212 and the second outer shell 211. In some embodiments, the inner wall portion of the second receiving cavity 2121 is recessed inwardly to form a second recess 2121c, and the second recess 2121c is formed on a side away from the plug-in end of the second connector 20 to form the second step surface 2121b; and the outer peripheral wall portion of the second terminal 22 is protruded outwardly to form a second protrusion 222, and the second protrusion 222 is formed on a side away from the plug-in end of the second connector 20 to form the second abutting surface 221. In some embodiments, the inner wall of the second pressing portion 2111 is concavely formed with a fourth recess 2111b connected to both ends of the second recess 2121c, and the second terminal 22 is provided with a plurality of second protrusions 222 along the circumferential direction to achieve the stability of the second terminal 22 on the second inner shell 212 and the second outer shell 211. With the above solution, the axial separation of the second terminal 22 in the second inner shell 212 and the second outer shell 211 can be limited through the cooperation of the second protrusion 222 and the second recess 2121c, and the cooperation of the second step surface 2121b and the second abutting surface 221, thereby ensuring the stability of the second terminal 22.

[0079] In some embodiments, a second cable 23 is further included that is partially able to extend into the second receiving cavity 2121 and is connected to the second terminal 22, and the second cable 23 is connected to a side of the second terminal 22 that is away from the plug-in end of the second connector 20. In some embodiments, the second pressing portion 2111 is formed to extend along the length direction of the second receiving cavity 2121, and is able to press the second terminal 22 and the second cable 23 into the second receiving cavity 2121.

[0080] In some embodiments, the outer wall of the second inner shell 212 is partially recessed to form a second groove 2121d, and the inner wall of the second outer shell 211 is provided with a second stopper 2113 that can be engaged in the second groove 2121d, and the two ends of the second stopper 2113 along the axial direction abut against the two ends of the second groove 2121d along the axial direction. With the above solution, one end of the second stopper 2113 is integrally formed on the second outer shell 211, and the second engaging portion 2113a is extended inwardly and downwardly from the end, and the second engaging portion 2113a is an elastic structure relative to the second outer shell 211, and a second inclined end surface 2113b is formed on the side of the second engaging portion 2113a away from the second outer shell 211, so as to facilitate the disassembly and assembly of the second inner shell 212 on the second outer shell 211.

[0081] In some embodiments, the outer wall of the second outer shell 211 is connected to a second locking member 24, and the second locking member 24 can give the second pressing portion 2111 a force to move radially toward the second inner shell 212. In some embodiments, the second locking member 24 is connected to the second outer shell 211 by a threaded connection. When the second locking member 24 is tightened, the force on the second outer shell 211 causes the second pressing portion 2111 to move radially toward the second inner shell 212, so that the second pressing portion 2111 can pass through the second opening 2121a to firmly press the second terminal 22 and the second cable 23 against the second inner shell 212, and the connection is more stable.

[0082] Embodiment three:

[0083] like Figure 21-22 As shown, this embodiment discloses a connector assembly, which includes a detachably connected first connector 10 and a second connector 20. In some embodiments, the outer wall of the first connector 10 is provided with two symmetrically arranged elastic buckles 15, and correspondingly, the outer wall of the second connector 20 is provided with two symmetrically arranged buckle holes 25; when the first connector 10 and the second connector 20 are plugged into each other, the elastic buckle 15 can be engaged in the buckle hole 25 to achieve locking between the first connector 10 and the second connector 20.

[0084] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0085] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A first connector, characterized in that: The invention comprises a first shell (11) and at least one first terminal (12) arranged in the first shell (11); the first shell (11) comprises a first outer shell (111) and a first inner shell (112) sleeved in the first outer shell (111), wherein the first inner shell (112) is formed with at least one first receiving cavity (1121) capable of receiving the first terminal (12) along its length direction, the first receiving cavity (1121) is provided with a first opening (1121a) arranged along its length direction on one side facing the first outer shell (111), and the inner wall of the first outer shell (111) is protruded toward the direction close to the first inner shell (112) to form a first pressing portion (1111) capable of passing through the first opening (1121a) to press the first terminal (12) into the first receiving cavity (1121).

2. The first connector according to claim 1, characterized in that: The inner wall of the first receiving cavity (1121) is provided with a first step surface (1121b) along the circumferential direction, and the outer peripheral wall of the first terminal (12) at least partially extends outward to form a first abutting surface (121) capable of abutting against the first step surface (1121b) to limit axial separation of the first terminal (12).

3. The first connector according to claim 2, characterized in that: The inner wall of the first receiving cavity (1121) is at least partially recessed inwardly to form a first recess (1121c), and the first recess (1121c) is located on a side away from the plug-in end of the first connector to form the first step surface (1121b); and the outer peripheral wall of the first terminal (12) is at least partially protruded outwardly to form a first protrusion (122), and the first protrusion (122) is located on a side away from the plug-in end of the first connector (10) to form the first abutment surface (121).

4. The first connector according to claim 1, characterized in that: It also comprises a first cable (13) which is at least partially capable of extending into the first receiving cavity (1121) and connected to the first terminal (12), and the first cable (13) is connected to a side of the first terminal (12) which is away from the plug-in end of the first connector.

5. The first connector according to claim 4, characterized in that: The first pressing portion (1111) is formed to extend along the length direction of the first receiving cavity (1121) and is capable of just closing the first opening (1121a) so as to press the first terminal (12) and the first cable (13) into the first receiving cavity (1121).

6. The first connector according to claim 1, characterized in that: The outer wall of the first inner shell (112) is at least partially recessed to form a first groove (1122), and the inner wall of the first outer shell (111) is provided with a first limiting portion (1112) capable of being engaged in the first groove (1122), and the two ends of the first limiting portion (1112) along the axial direction abut against the two ends of the first groove (1122) along the axial direction.

7. The first connector according to claim 1, characterized in that: The outer wall of the first outer shell (111) is connected to a first locking member (14), and the first locking member (14) can provide the first pressing portion (1111) with a force to move in a radial direction toward the first inner shell (112).

8. A second connector adapted to the first connector as claimed in any one of claims 1 to 7, characterized in that: The second connector comprises a second housing (21), and at least one second terminal (22) arranged in the second housing (21) and capable of being plugged with the first terminal (12) to achieve electrical connection; the second housing (21) comprises a second outer housing (211) and a second inner housing (212) sleeved in the second outer housing (211), wherein the second inner housing (212) is formed with at least one second receiving cavity (2121) capable of receiving the second terminal (22) along its length direction, the second receiving cavity (2121) is provided with a second opening (2121a) arranged along its length direction on one side facing the second housing (211), and the inner wall of the second housing (211) is formed with a second pressing portion (2111) protruding in a direction close to the second inner housing (212) and capable of passing through the second opening (2121a) to press the second terminal (22) into the second receiving cavity (2121).

9. The second connector according to claim 8, characterized in that: The inner wall of the second receiving cavity (2121) is provided with a second step surface (2121b) along the circumferential direction, and the outer peripheral wall of the second terminal (22) at least partially extends outward to form a second abutting surface (221) capable of abutting against the second step surface (2121b) to limit the axial separation of the second terminal (22).

10. A connector assembly having the first connector as claimed in any one of claims 1 to 7, characterized in that: The connector assembly comprises a first connector (10) and a second connector (20) which are detachably connected.

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