Connector and automobile

Abstract

The utility model discloses a connector and an automobile, the connector comprises a first shell, a first terminal, a second shell and a second terminal, the first shell is provided with an accommodating cavity and a first through hole which are communicated with each other, and the first terminal is embedded in the first shell; the second shell is arranged in the first through hole in a penetrating manner and is connected with the first shell; the second shell is provided with a second through hole; the second terminal is arranged in the second through hole in a penetrating manner and is connected with the second shell; wherein the second shell comprises a body and a plurality of connecting columns, the body is arranged in the first through hole in a penetrating manner, a part of the body extends into the accommodating cavity, and the body and the first terminal are arranged at an interval; the connecting columns are arranged around the second through hole at intervals and connected to the side, away from the containing cavity, of the body. Among the plurality of connecting columns, the outer diameter of the connecting column having the smallest distance from the central axis of the first housing is the largest. The structural strength of the connector can be enhanced to bear larger force, so that the risk of breakage of the connecting column is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of connectors, and particularly relates to a connector and an automobile. BACKGROUND

[0002] The connector is connected with a board end through a connecting column, so that the connector is fixed. However, due to unbalanced stress, the connecting column of the connector may be broken during use, so that the connector is prone to falling from the board end, and the product function and subsequent application are affected. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims to provide a connector, which aims to solve the problem that the connecting column of the existing connector is prone to breaking and affects subsequent use.

[0004] TECHNICAL SCHEME: The application provides a connector, which comprises:

[0005] A first shell has a containing cavity and a first through hole which are in communication with each other;

[0006] A first terminal is embedded in the first shell, one end of the first terminal is located in the containing cavity, and the other end of the first terminal is located outside the first shell;

[0007] A second shell is arranged in the first through hole and connected with the first shell; the second shell has a second through hole;

[0008] A second terminal is arranged in the second through hole and connected with the second shell;

[0009] The second shell comprises:

[0010] A body is arranged in the first through hole and partially extends into the containing cavity; the body is arranged at intervals from the first terminal;

[0011] A plurality of connecting columns are arranged at intervals around the second through hole and connected to one side of the body away from the containing cavity; the outer diameter of the connecting column with the smallest distance from the central axis of the first shell is the largest among the plurality of connecting columns.

[0012] Correspondingly, the application provides an automobile, which comprises the connector as described in any one of the preceding embodiments.

[0013] Beneficial effects: compared with the prior art, the connector provided in the embodiment of the application comprises a first shell, a first terminal, a second shell and a second terminal, the first shell has a containing cavity and a first through hole which are in communication with each other, the first terminal is embedded in the first shell, one end of the first terminal is located in the containing cavity, and the other end of the first terminal is located outside the first shell; the second shell is arranged in the first through hole and connected with the first shell; the second shell has a second through hole; the second terminal is arranged in the second through hole and connected with the second shell; wherein the second shell comprises a body and a plurality of connecting columns, the body is arranged in the first through hole and partially extends into the containing cavity, and the body is arranged in a spaced manner with the first terminal; the plurality of connecting columns are arranged in a spaced manner around the second through hole and connected to one side of the body away from the containing cavity; and the outer diameter of the connecting column with the smallest distance from the central axis of the first shell among the plurality of connecting columns is the largest. By arranging the plurality of connecting columns, the force can be dispersed, the force at the local point can be reduced, and the possibility of fracture of the connecting column caused by unbalanced force can be reduced. Meanwhile, the outer diameter of the connecting column close to the central axis is the largest, the structural strength of the connecting column can be enhanced, the connecting column can bear greater force, the risk of fracture of the connecting column caused by excessive force can be further reduced, and the structural stability and service life of the connector after being connected with the board end can be improved.

[0014] Compared with the prior art, the automobile provided in the embodiment of the application comprises the connector according to any one of the preceding embodiments.

[0015] It can be understood that the automobile provided in the application comprises all the technical features and technical effects of the connector in the preceding embodiments, which will not be described herein. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0017] Figure 1 is a whole structure schematic view of a connector according to an embodiment of the application;

[0018] Figure 2 is an exploded view of a connector according to an embodiment of the application;

[0019] Figure 3 is a structure schematic view of a side where connecting columns of a connector according to an embodiment of the application are located;

[0020] Figure 4 is a structure schematic view of a first shell of a connector according to an embodiment of the application;

[0021] Figure 5 is a structural schematic view of a second housing of a connector according to an embodiment of the present application;

[0022] Figure 6 is a sectional view of a connector according to an embodiment of the present application.

[0023] Fig. 100, first housing; 110, accommodating cavity; 120, first through hole; 130, bottom wall; 131, first limiting groove; 140, first positioning groove; 150, second positioning groove; 160, support portion; 200, first terminal; 300, second housing; 310, second through hole; 320, body; 321, first limiting portion; 322, second limiting portion; 323, second limiting groove; 330, connecting column; 331, first connecting column; 332, second connecting column; 333, third connecting column; 400, second terminal; 410, protruding rib; 500, clamping portion. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, at least one of which can be one, two or more, unless otherwise explicitly specified. In the description of the present application, "vertical" means completely vertical at 90° or almost completely vertical, for example, within the range of 80°-100°, it is considered as vertical, similarly, "parallel" means completely parallel or almost completely parallel, for example, within the range of 10° of complete parallel, it is considered as parallel.

[0026] Please refer toFigures 1-5 The embodiment of the present application provides a connector, which comprises a first shell 100, a first terminal 200, a second shell 300 and a second terminal 400, the first shell 100 has a containing cavity 110 and a first through hole 120 which are communicated with each other, the first terminal 200 is embedded in the first shell 100, one end of the first terminal 200 is located in the containing cavity 110, and the other end of the first terminal 200 is located outside the first shell 100; the second shell 300 is arranged in the first through hole 120 and connected with the first shell 100; the second shell 300 has a second through hole 310; the second terminal 400 is arranged in the second through hole 310 and connected with the second shell 300; wherein the second shell 300 comprises a body 320 and a plurality of connecting columns 330, the body 320 is arranged in the first through hole 120 and partially extends into the containing cavity 110, and the body 320 is arranged at intervals from the first terminal 200; the plurality of connecting columns 330 are arranged at intervals around the second through hole 310 and connected to one side of the body 320 which is away from the containing cavity 110; and the outer diameter of the connecting column 330 which has the smallest distance from the central axis of the first shell 100 is the largest among the plurality of connecting columns 330.

[0027] In the embodiment of the present application, by arranging the plurality of connecting columns 330, the stress can be dispersed, the stress of local points can be reduced, the possibility of the fracture of the connecting column 330 caused by the unbalanced stress can be reduced, the outer diameter of the connecting column 330 which is close to the central axis is the largest, the structural strength of the connecting column 330 can be enhanced, the connecting column 330 can bear greater force, the risk of the fracture of the connecting column 330 caused by the excessive force can be further reduced, and the structural stability and service life of the connector after being connected with the board end (a connection structure such as a circuit board) can be improved.

[0028] Specifically, in the embodiment of the present application, the first shell 100 is used for connecting with an external connector, the first terminal 200 and the second shell 300 are accommodated by the first shell 100, and the second terminal 400 is accommodated by the second shell 300, which adopts a close nesting type arrangement mode, can optimize the overall structure of the connector, ensure that the connection of the connector is more stable, and help to keep the relative position between the two shells stable when the connector is subjected to external force, and prevent the whole connector from falling off the board end. The plurality of connecting columns 330 are arranged at intervals around the second through hole 310 and connected to one side of the body 320 which is away from the containing cavity 110, when the connector is installed to the board end, the connecting column 330 can be accurately inserted into the corresponding hole or groove of the board end, plays a role of positioning and auxiliary fixing, makes the connection of the connector and the board end more close and accurate, and avoids the connector from falling off the board end due to shaking or displacement in the use process.

[0029] Meanwhile, in the embodiment of the present application, the plurality of connecting posts 330 of the second housing 300 are arranged at intervals around the second through hole 310, and at this time, since the second terminal 400 is arranged in the second through hole 310, it is equivalent to that the plurality of connecting posts 330 are arranged at intervals around the second terminal 400. When the connector is connected with the board end, the plurality of connecting posts 330 can jointly bear the external force received by the connector, compared with the case that only the first terminal 200 and the second terminal 400 are connected and fixed with the board end, the force can be dispersed to a plurality of points, so that the force borne by each point is relatively reduced, thereby reducing the possibility that the connecting post 330 is broken due to unbalanced force.

[0030] In addition, the outer diameter of the connecting post 330 which is closest to the central axis of the first housing 100 is the largest, and this design makes the contact area of the connecting post 330 with the board end larger, and the connecting post 330 can bear a larger force applied from the side of the circuit board (referred to as lateral force), and when the connector receives the lateral force from the outside, the connecting post 330 can play a major supporting and positioning role, and the stability of the connector as a whole is enhanced, and the risk of breakage of the connecting post 330 due to excessive force is further reduced.

[0031] It should be noted that in the embodiment of the present application, the first terminal 200 is embedded in the first housing 100 and is fixedly connected with the first housing 100, and the second terminal 400 is embedded in the second housing 300 and is fixedly connected with the second housing 300, and at this time, when the connector is connected with the external connector and receives the lateral force, it is beneficial to maintain the relative positional relationship between the first terminal 200 and the first housing 100, and the relative positional relationship between the second housing 300 and the second terminal 400.

[0032] It should be further noted that the connecting post 330 closest to the central axis of the first housing 100 in the embodiment of the present application can be that the central axis of the connecting post 330 is closest to the central axis of the first housing 100.

[0033] It should be further noted that in the embodiment of the present application, the second terminal 400 can be a connecting terminal of one pin, and the first terminal 200 can be a connecting terminal of two pins.

[0034] Please refer to Figures 3-5In some embodiments, the first shell 100 includes a bottom wall 130 for enclosing the accommodating cavity 110, the first through hole 120 penetrates through the bottom wall 130, the first shell 100 has a first positioning groove 140 arranged on a side of the bottom wall 130 away from the accommodating cavity 110, and the first positioning groove 140 is in communication with the first through hole 120; the body 320 includes a connecting body 321 and a first limiting portion 322, the connecting body 321 is arranged in the first through hole 120 and connected with the bottom wall 130, the first limiting portion 322 is arranged around an outer circumferential side of an end of the connecting body 321 away from the accommodating cavity 110 and connected with the connecting body 321, the first limiting portion 322 is arranged in the first positioning groove 140, and a plurality of connecting columns 330 are connected to a side of the first limiting portion 322 away from the accommodating cavity 110.

[0035] In the embodiments of the present application, the first limiting portion 322 and the first positioning groove 140 are matched with each other, so that the mutual limiting positioning between the second shell 300 and the first shell 100 is realized, the accuracy of the connection between the two is enhanced, and the structural stability of the overall connector is enhanced. At the same time, the first limiting portion 322 and the bottom wall 130 are limited to each other, so that when the connector is connected with the counterpart connector, the first limiting portion 322 can abut against the bottom wall 130 to effectively support the first shell 100, the relative displacement between the first shell 100 and the second shell 300 is limited, and the structural stability is improved.

[0036] In addition, in the embodiments of the present application, the first terminal 200 and the second terminal 400 are connected with the circuit board, the plurality of connecting columns 330 of the second shell 300 are connected with the circuit board, the first limiting portion 322 is used to effectively support and limit the first shell 100, the first limiting portion 322 is connected with the plurality of connecting columns 330, the lateral force is transmitted from the first shell 100 and the column to the first limiting portion 322, and then dispersedly transmitted from the first limiting portion 322 to the plurality of connecting columns 330, and at the same time, the lateral force is also transmitted through the first terminal 200 and the second terminal 400, so that the force is dispersedly transmitted. Since the connector center axis and the surrounding position are subjected to relatively more lateral forces, the outer diameter of the connecting column 330 closest to the center axis of the first shell 100 is the largest, which can provide better support and connection effect and improve the structural strength, thereby helping to prolong the service life of the connector, ensure the long-term stable operation of the connector, maintain the reliability of the connection with the board end, and ensure the normal use of the product.

[0037] It should be noted that in the embodiments of the present application, the outer shape of the first positioning groove 140 and the first limiting portion 322 is other than circular, which is more conducive to the corresponding positioning and limiting effect.

[0038] Please refer to Figure 3In some embodiments, the plurality of connecting columns 330 includes a first connecting column 331, a second connecting column 332, and a third connecting column 333, which are arranged at intervals around the second through hole 310 and are connected to the body 320; among the first connecting column 331, the second connecting column 332, and the third connecting column 333, the first connecting column 331 has the largest outer diameter and the smallest distance between the central axis thereof and the central axis of the first shell 100.

[0039] In the embodiments of the present application, by arranging the first connecting column 331, the second connecting column 332, and the third connecting column 333, triangular positioning support is achieved, which can optimize the support effect, improve stability, and facilitate balanced dispersion of external force and reduction of local stress.

[0040] Specifically, the first connecting column 331 has the largest outer diameter and the smallest distance between the central axis thereof and the central axis of the first shell 100, so that it can bear greater external force when connected. After the connector is connected to the board end, the first connecting column 331 can serve as the main support point to reduce the inclination or shaking of the connector caused by external force, thereby enhancing the stability of the connection of the entire connector to the circuit board. The three connecting columns 330 are arranged at intervals around the second through hole 310 to form a triangular structure, which has stability and can support and position the second shell 300 and the entire connector from multiple directions, further improving the stability of the connector during use and preventing displacement or loosening of the connector. When the connector is subjected to external force, the first connecting column 331, which is closest to the central axis of the first shell 100, can bear greater force and can first disperse part of the external force to itself. The first connecting column 331 has a larger outer diameter and a larger strength, so it can bear greater external force while maintaining structural stability. Then, through the synergistic effect of the second and third connecting columns 333, the external force is evenly dispersed to the entire connecting structure, avoiding the concentration of external force in a certain part and effectively reducing the risk of fracture of the connecting columns 330 due to uneven stress.

[0041] At the same time, the connecting columns 330 with different outer diameters and positions are designed to make the stress distribution more uniform in the area where the connector contacts the board end. In particular, the first connecting column 331 with the largest outer diameter can increase the contact area with the board end and reduce the stress per unit area, thereby reducing the likelihood of excessive local stress at the connection between the connecting column 330 and the board end and prolonging the service life of the connector and the board end.

[0042] In addition, the three connection posts 330 have different sizes and positional relationships, forming a unique assembly feature. If there is a direction error or a connection post 330 does not match a hole position during assembly, it can be easily found, which plays a certain error-proofing role and reduces product damage or performance degradation caused by assembly errors.

[0043] Referring to Figure 3 In some embodiments, the distance between the center axis of the first connection post 331 and the center axis of the second connection post 332 and the distance between the center axes of the third connection posts 333 are equal, and the distance between the center axis of the second connection post 332 and the center axes of the first connection post 331 and the third connection post 333 are equal.

[0044] In the embodiments of the present application, the distances between the center axis of the first connection post 331, the center axis of the second connection post 332 and the center axes of the third connection posts 333 are equal, forming an equilateral triangle structure. The equilateral triangle has high stability and can provide balanced support force for the connector from all directions, effectively resisting external forces from different directions, reducing the possibility of shaking, tilting or deformation of the connector during use, and ensuring that the connection of the connector with the board end is more stable and reliable. When the connector is subjected to external pressure or tension, the equilateral triangle connection post 330 layout can evenly distribute the stress to the three connection posts 330, avoiding stress concentration on a connection post 330 or a certain area, reducing the risk of connection post 330 fracture or connector damage caused by excessive local stress, and improving the strength and durability of the entire connection structure.

[0045] It should be noted that the distances between the center axis of the first connection post 331, the center axis of the second connection post 332 and the center axes of the third connection posts 333 and the center axis of the second through hole 310 can be equal. At this time, the corresponding second terminal 400 is located at the center of the circle in which the center axes of the first connection post 331, the second connection post 332 and the third connection post 333 are located. At this time, it is more beneficial to evenly distribute the external force received by the second terminal 400.

[0046] Referring to Figure 3 In some embodiments, among the first connection post 331, the second connection post 332 and the third connection post 333, the first connection post 331 has the smallest distance from the first terminal 200.

[0047] In the embodiment of the present application, the first connecting column 331 is closest to the center axis of the first shell 100 and has the smallest distance from the first terminal 200. At this time, the first connecting column 331 shares the lateral force near the first terminal. By setting the maximum outer diameter of the first connecting column 331, the strength of the first connecting column 331 can be achieved, thereby reducing the risk of breaking the connecting column 330 and improving the connection reliability, and also protecting the structural stability of the first terminal.

[0048] For reference, please see Figures 3-5 In some embodiments, the first shell 100 also has a second positioning groove 150, which is arranged on the side of the bottom wall 130 away from the accommodating cavity 110, and the second positioning groove 150 is in communication with the first positioning groove 140. The body 320 also includes a second limiting portion 323 connected to the outer peripheral side of the first limiting portion 322, and the second limiting portion 323 is arranged in the second positioning groove 150.

[0049] In the embodiment of the present application, by setting the second limiting portion 323 and the second limiting groove 324 to cooperate with each other, further positioning and limiting of the connection between the second shell 300 and the first shell 100 is achieved, which provides positioning and guidance for the installation of the second shell 300 and has a good foolproof effect, thereby ensuring that the first connecting column 331 can be located at the position closest to the center axis of the first shell 100 and closest to the first terminal 200, thereby facilitating the improvement of the overall connection strength of the connector.

[0050] For reference, please see Figure 3 In some embodiments, the outer diameters of the second connecting column 332 and the third connecting column 333 are the same.

[0051] In the embodiment of the present application, the outer diameter of the first connecting column 331 is larger than the outer diameters of the second connecting column 332 and the third connecting column 333, and the outer diameters of the second connecting column 332 and the third connecting column 333 are the same. At this time, it is beneficial to achieve the stress balance of the second connecting column 332 and the third connecting column 333 and reduce the influence of torque.

[0052] Specifically, the same outer diameter makes the second connecting column 332 and the third connecting column 333 have similar mechanical properties and carrying capacity when bearing external forces such as tension and pressure from the connecting end of the connector, and can more evenly share external forces, avoiding damage and deformation caused by stress concentration due to the too small outer diameter of a connecting column 330, thereby improving the stability and reliability of the overall structure of the connector. When the connector is subjected to torque during use, the second connecting column 332 and the third connecting column 333 with the same outer diameter can provide relatively consistent torsional resistance, making the stress of the connector in the torsional direction more balanced, reducing the risk of structural distortion and loosening caused by the difference in torsional resistance, and ensuring the normal operation of the connector under complex stress conditions.

[0053] Please refer to Figures 4-6 In some embodiments, the bottom wall 130 has a first limiting groove 131 penetrating the outer circumferential surface of the bottom wall 130 and the inner side wall of the first through hole 120, and the first limiting groove 131 is in communication with the first through hole 120; the body 320 further has a second limiting groove 324 arranged around the outer circumferential surface of the body 320, and the first limiting groove 131 is in communication with the second limiting groove 324; the connector further includes a clamping portion 500 penetrating the first limiting groove 131 and the second limiting groove 324, respectively, for limiting the relative displacement of the second terminal 400 and the first shell 100 in the axial direction.

[0054] In the embodiments of the present application, by arranging the first limiting groove 131 on the bottom wall 130, the second limiting groove 324 on the body 320, and the clamping portion 500, a limiting structure is formed specifically for the axial direction of the second shell 300, thereby accurately displaying the axial displacement of the second shell 300, preventing the relative displacement between the first shell 100 and the second shell 300, and maintaining the long-term stable connection of the first shell 100 and the second shell 300.

[0055] Please refer to Figure 3 and Figure 4 In some embodiments, the first shell 100 further includes a plurality of support portions 160 connected to the side of the bottom wall 130 away from the accommodation cavity 110, and the plurality of support portions 160 are arranged at intervals around the first terminal 200 and the second terminal 400.

[0056] In the embodiments of the present application, by arranging the plurality of support portions 160, better support can be provided when the connector is connected to the board end, and stress can be effectively dispersed to avoid stress concentration in a certain part, thereby reducing the risk of shell rupture or terminal damage caused by excessive local stress, and also facilitating the protection of the plurality of connecting columns 330 and reducing the possibility of breaking of the connecting columns 330.

[0057] Please refer to Figure 3 and Figure 6 In some embodiments, the second terminal 400 includes a plurality of protruding ribs 410 arranged at intervals and abutting against the inner side wall of the second through hole 310.

[0058] In the embodiments of the present application, by arranging the plurality of protruding ribs 410, the protruding ribs 410 abut against the inner side wall of the second through hole 310, and at this time, interference fit between the second terminal 400 and the inner side wall of the second through hole 310 is achieved, thereby enhancing the connection stability.

[0059] Correspondingly, the embodiments of the present application also provide an automobile including the connector according to any one of the preceding embodiments.

[0060] It can be understood that the automobile of the present application includes all the technical features and technical effects of the connector in the foregoing embodiments, which will not be described here.

[0061] Of course, the automobile of the embodiment of the present application can be a fuel automobile, a new energy automobile or a hybrid electric automobile, etc.

[0062] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0063] The above describes in detail a connector and an automobile provided by the embodiment of the present application, and the principle and implementation manner of the present application are described by applying specific examples. The above embodiment is only used to help understand the technical solution and core idea of the present application; the ordinary skilled in the art should understand that the technical solution recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A connector characterized by comprising: The application relates to a connector, which comprises the following parts: a first shell (100) with a containing cavity (110) and a first through hole (120) in communication with each other; a first terminal (200) embedded in the first shell (100), one end of the first terminal (200) being located in the containing cavity (110), and the other end of the first terminal (200) being located outside the first shell (100); a second shell (300) penetrating through the first through hole (120) and connected with the first shell (100); the second shell (300) has a second through hole (310); a second terminal (400) penetrating through the second through hole (310) and connected with the second shell (300); wherein the second shell (300) comprises: a body (320) penetrating through the first through hole (120) and partially extending into the containing cavity (110); the body (320) is arranged in a spaced manner with the first terminal (200); a plurality of connecting columns (330) arranged in a spaced manner around the second through hole (310) and connected to one side of the body (320) away from the containing cavity (110); the connecting column (330) with the smallest distance from the central axis of the first shell (100) among the plurality of connecting columns (330) has the largest outer diameter.

2. The connector according to claim 1, wherein: the first shell (100) comprises a bottom wall (130) for surrounding the containing cavity (110); the first through hole (120) penetrates through the bottom wall (130); the first shell (100) has a first positioning groove (140) arranged on one side of the bottom wall (130) away from the containing cavity (110); and the first positioning groove (140) is in communication with the first through hole (120); the body (320) comprises: a connecting body (321) penetrating through the first through hole (120) and connected with the bottom wall (130); a first limiting part (322) arranged in a surrounding manner on the outer periphery of one end of the connecting body (321) away from the containing cavity (110) and connected with the connecting body (321); the first limiting part (322) is arranged in the first positioning groove (140); and the plurality of connecting columns (330) are connected to one side of the first limiting part (322) away from the containing cavity (110).

3. The connector according to claim 2, wherein: the plurality of connecting columns (330) comprise a first connecting column (331), a second connecting column (332) and a third connecting column (333); the first connecting column (331), the second connecting column (332) and the third connecting column (333) are arranged in a spaced manner around the second through hole (310) and are all connected with the body (320). Among the first connecting post (331), the second connecting post (332) and the third connecting post (333), the first connecting post (331) has the largest outer diameter and the smallest distance between the central axis of the first connecting post (331) and the central axis of the first shell (100).

4. The connector of claim 3, wherein The distance between the central axis of the first connecting post (331) and the central axis of the second connecting post (332) and the distance between the central axes of the third connecting post (333) are equal, and the distance between the central axis of the second connecting post (332) and the central axes of the first connecting post (331) and the third connecting post (333) are equal.

5. The connector of claim 3, wherein Among the first connecting post (331), the second connecting post (332) and the third connecting post (333), the first connecting post (331) has the smallest distance from the first terminal (200).

6. The connector according to claim 5, wherein The first shell (100) further has a second positioning groove (150) disposed on the side of the bottom wall (130) away from the accommodating cavity (110), and the second positioning groove (150) is in communication with the first positioning groove (140). The body (320) further comprises a second limiting portion (323) connected to the outer circumferential side of the first limiting portion (322), and the second limiting portion (323) is disposed in the second positioning groove (150).

7. The connector of claim 3, wherein The outer diameters of the second connecting post (332) and the third connecting post (333) are the same.

8. The connector according to claim 2, wherein The bottom wall (130) has a first limiting groove (131) penetrating the outer circumferential surface of the bottom wall (130) and the inner side wall of the first through hole (120), and the first limiting groove (131) is in communication with the first through hole (120). The body (320) further has a second limiting groove (324) disposed around the outer circumferential surface of the body (320), and the first limiting groove (131) is in communication with the second limiting groove (324). The connector further comprises a clamping portion (500) respectively penetrating into the first limiting groove (131) and the second limiting groove (324) for limiting the relative displacement of the second terminal (400) and the first shell (100) in the axial direction.

9. The connector of claim 2, wherein, The first shell (100) further comprises a plurality of supporting portions (160) connected to the side of the bottom wall (130) away from the accommodating cavity (110), and the plurality of supporting portions (160) are disposed around the first terminal (200) and the second terminal (400) at intervals.

10. The connector of claim 1, wherein, The second terminal (400) comprises a plurality of protruding ribs (410) disposed at intervals and abutting against the inner side wall of the second through hole (310).

11. An automobile characterized by comprising: A connector as claimed in any one of claims 1-10.

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