Connector female end, connector and electric device

Abstract

The utility model relates to the technical field of connectors, and provides a connector female end, a connector and an electric device. The connector female end comprises a female end main body and a female end limiting piece, the female end main body comprises a first main body section and a second main body section which are sequentially connected in the plugging direction, a female end matching groove is defined by the first main body section and the second main body section, and an opening of the female end matching groove is located in the peripheral face of the female end main body; the first main body section comprises a first female end hole, the first female end hole penetrates through the first main body section in the inserting direction, the second main body section comprises a second female end hole right opposite to the first female end hole, the second female end hole penetrates through the second main body section in the inserting direction, and the first female end hole and the second female end hole are both communicated with the female end matching groove; the female end limiting piece is inserted into the female end matching groove through the opening and provided with a third female end hole, and the third female end hole penetrates through the female end limiting piece in the inserting direction. According to the connector female end provided by the embodiment of the invention, the service life of the connector female end can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field especially relates to a connector female end, connector and electric device. BACKGROUND

[0002] In the connector technical field, there is a connector with mixed power supply and signal terminals, and the contact terminals for power supply transmission and the contact terminals for signal transmission are arranged adjacently.

[0003] In the actual operation process, the female terminals on the female end are dragged during the pulling out process of the male end and the female end of the connector, and the female terminals may fall off during the pulling out process, which affects the service life of the female end of the connector and the user experience. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a connector female end, a connector and an electric device.

[0005] In the first aspect, the application provides a connector female end, which can include: a female end body, the female end body includes a first body segment and a second body segment connected in sequence in the plug-in direction, the first body segment and the second body segment surround the female end fitting groove, and the open mouth of the female end fitting groove is located on the outer circumferential surface of the female end body; the first body segment includes a first female end hole, the first female end hole penetrates the first body segment in the plug-in direction, the second body segment includes a second female end hole opposite to the first female end hole, the second female end hole penetrates the second body segment in the plug-in direction, and the first female end hole and the second female end hole are in communication with the female end fitting groove; a female end limiting piece, the female end limiting piece is inserted into the female end fitting groove from the open mouth, the female end limiting piece is provided with a third female end hole, and the third female end hole penetrates the female end limiting piece in the plug-in direction; wherein the female end limiting piece includes a first position and a second position, when the female end limiting piece is in the first position, the female terminals are sequentially arranged in the first female end hole, the third female end hole and the second female end hole, the side wall of the third female end hole is opposite to the clamping position of the female terminal, and when the female end limiting piece is in the second position, the side wall of the third female end hole is clamped into the clamping position of the female terminal.

[0006] It can be understood that, in the process of assembling the female terminal to the female terminal body, the female terminal limiting piece is first inserted into the first position, the female terminal is arranged in the first female terminal hole, the third female terminal hole and the second female terminal hole, and then the female terminal limiting piece is pushed to move from the first position to the second position, so that the side wall of the third female terminal hole is clamped into the clamping groove. In this way, the side wall of the third female terminal hole can provide limiting in the plug-in direction for the clamping groove, and limiting is provided when the female terminal is pulled, so as to avoid the female terminal from being separated from the matched position, thereby prolonging the service life of the connector female end.

[0007] In some embodiments of the present application, the side wall of the third female terminal hole includes a limiting surface close to the open hole, and when the female terminal limiting piece is in the second position, the side wall on one side of the limiting surface is clamped into the clamping groove.

[0008] In some embodiments of the present application, the female terminal limiting piece is clamped with the female terminal matching groove.

[0009] In some embodiments of the present application, the female terminal limiting piece includes a first side surface, a plane where the first side surface is located is perpendicular to a plane where the open hole is located, and a first clamping tooth is arranged on the first side surface; the female terminal matching groove includes a first inner wall opposite to the first side surface, and the first inner wall is provided with a first clamping groove matched with the first clamping tooth.

[0010] In some embodiments of the present application, the first clamping tooth includes a first sub-tooth and a second sub-tooth, and the first sub-tooth and the second sub-tooth are sequentially and spaced apart in the depth direction of the female terminal matching groove; wherein, when the female terminal limiting piece is in the first position, the first sub-tooth is clamped with the first clamping groove, and when the female terminal limiting piece is in the second position, the second sub-tooth is clamped with the first clamping groove.

[0011] In some embodiments of the present application, the female terminal limiting piece includes a second side surface opposite to the first side surface, and the second side surface is provided with a second clamping tooth; the female terminal matching groove includes a second inner wall opposite to the second side surface, and the second inner wall is provided with a second clamping groove matched with the second clamping tooth.

[0012] In some embodiments of the present application, the first female terminal hole includes a first sub-hole and a second sub-hole, and a hole diameter of the first sub-hole is greater than a hole diameter of the second sub-hole.

[0013] In some embodiments of the present application, the first female terminal hole further includes a third sub-hole, and a hole diameter of the third sub-hole is greater than a hole diameter of the first sub-hole.

[0014] In a second aspect, the present application further provides a connector, which includes the connector female end of any one of the above-mentioned schemes and a connector male end matched with the connector female end.

[0015] The technical effects brought by any of the design schemes in the second aspect can refer to the technical effects brought by different design manners in the first aspect, which will not be repeated here.

[0016] In a third aspect, the application further provides a power utilization device, which can comprise: a first electrical component and a second electrical component; and the connector according to any of the above-mentioned schemes, which is connected between the first electrical component and the second electrical component.

[0017] The technical effects brought by any of the design schemes in the third aspect can refer to the technical effects brought by different design manners in the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application together with the specification.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0020] Figure 1 A schematic view of a female end main body is provided for some embodiments of the present application.

[0021] Figure 2 A schematic view of a male end main body is provided for some embodiments of the present application. Figure 1 A schematic view of a female end limiting member is provided for some embodiments of the present application.

[0022] Figure 3 A schematic view of a male end main body is provided for some embodiments of the present application.

[0023] Reference signs:

[0024] 110, female end main body; 111, first main body segment; 112, second main body segment; 113, female end matching groove;

[0025] 120, female end limiting member; 121, third female end hole; 1211, limiting surface; 122, first clamping tooth; 1221, first sub-tooth; 1222, second sub-tooth;

[0026] 130, male end main body; 131, plug-in cavity; 132, positioning hole;

[0027] 140, auxiliary member; 141, auxiliary hole;

[0028] 150, C-shaped nesting; 151, limiting boss. DETAILED DESCRIPTION

[0029] In order to enable the above-mentioned purposes, features and advantages of the utility model to be more clearly understood, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein; Obviously, the embodiments in the description are only a part of the embodiments of the utility model, not all the embodiments.

[0031] In the technical field of connectors, there are connectors in which power supply and signal terminals are mixed, and contact terminals for power supply transmission and contact terminals for signal transmission are arranged adjacent to each other.

[0032] In actual operation, during the pulling out of the male end and the female end of the connector, the female terminals on the female end are prone to being dragged, and the female terminals may fall off during the pulling out, affecting the service life of the female end of the connector and the user experience.

[0033] To solve the above technical problems, please refer to Figure 1 and Figure 2 The application provides a connector female end applied to a female terminal, wherein a female connecting end of the female terminal is provided with a clamping ring groove, and the clamping ring groove is arranged around the outer circumferential surface of the female connecting end, wherein the female connecting end refers to the part connected with the female end body 110.

[0034] Specifically, the connector female end can include a female end body 110 and a female end limiting piece 120. The female end body 110 includes a first body segment 111 and a second body segment 112 connected in sequence in the insertion direction, and the first body segment 111 and the second body segment 112 surround a female end matching groove 113, and the open end of the female end matching groove 113 is located on the outer circumferential surface of the female end body 110.

[0035] The first body segment 111 includes a first female end hole, and the first female end hole penetrates the first body segment 111 in the insertion direction (for example, the up-down direction shown in the figure) Figure 1 The second body segment 112 includes a second female end hole opposite to the first female end hole, and the second female end hole penetrates the second body segment 112 in the insertion direction, and the first female end hole and the second female end hole are both in communication with the female end matching groove 113.

[0036] The first female end hole is in one-to-one correspondence with the second female end hole.

[0037] Specifically, the side wall section is connected to the first main body section 111 at one end and connected to the second main body section 112 at the other end. The first main body section 111, the second main body section 112, and the side wall section together define a female end fitting groove 113.

[0038] Taking the first main body section 111 and the second main body section 112 as an example, the side wall section can protect one side, two sides, or three sides between the first main body section 111 and the second main body section 112.

[0039] The female end limiting piece 120 is inserted into the female end fitting groove 113 through the open end. The female end limiting piece 120 is provided with a third female end hole 121. The third female end hole 121 penetrates the female end limiting piece 120 in the insertion direction.

[0040] The female end limiting piece 120 includes a first position and a second position. When the female end limiting piece 120 is in the first position, the female end connecting section is sequentially arranged in the first female end hole, the third female end hole 121, and the second female end hole. The side wall of the third female end hole 121 is opposite to the clamping groove. When the female end limiting piece 120 is in the second position, the side wall of the third female end hole 121 is clamped into the clamping groove.

[0041] It can be understood that, in the process of assembling the female end connector to the female end main body 110, the female end limiting piece 120 is first inserted into the first position, and the female end connector is arranged in the first female end hole, the third female end hole 121, and the second female end hole. Then, the female end limiting piece 120 is pushed to move from the first position to the second position, so that the side wall of the third female end hole 121 is clamped into the clamping groove. In this way, the side wall of the third female end hole 121 can provide limiting in the insertion direction for the clamping groove, and provide limiting when the female end connector is pulled, so as to avoid the female end connector from being separated from the fitting position, thereby prolonging the service life of the connector.

[0042] In some embodiments of the present application, the side wall of the third female end hole 121 includes a limiting surface 1211 close to the open end. When the female end limiting piece 120 is in the second position, the side wall on the side where the limiting surface 1211 is located is clamped into the clamping groove.

[0043] It can be understood that the cross section of the third female end hole 121 is taken as a rectangular shape, and the limiting surface 1211 is the surface close to the open side, so that when the female end limiting piece 120 is assembled to the female end body 110, only a part of the female end limiting piece 120 needs to be inserted, so that the female end limiting piece 120 comes to the first position, and then further inserted, so that the female end limiting piece 120 comes to the second position, so that the side wall on which the limiting surface 1211 is located can abut against the clamping groove.

[0044] Thus, by setting the side wall on which the limiting surface 1211 is located, the limiting of the female end terminal is realized, and the condition that the female end terminal is separated from the matching position is avoided.

[0045] The female end limiting piece 120 is clamped with the female end matching groove 113, which facilitates the assembly and disassembly of the female end limiting piece 120 and the female end body 110.

[0046] Specifically, the female end limiting piece 120 includes a first side surface, the plane on which the first side surface is located is perpendicular to the plane on which the open side is located, and the first side surface is provided with a first clamping tooth 122, and the female end matching groove 113 includes a first inner wall opposite to the first side surface, and the first inner wall is provided with a first clamping groove matched with the first clamping tooth 122.

[0047] Thus, the clamping between the female end limiting piece 120 and the female end body 110 is realized by the first clamping tooth 122 and the first clamping groove.

[0048] Further, the female end limiting piece 120 can further include a second side surface opposite to the first side surface, and the second side surface is provided with a second clamping tooth, and the female end matching groove 113 includes a second inner wall opposite to the second side surface, and the second inner wall is provided with a second clamping groove matched with the second clamping tooth.

[0049] Thus, by setting the first clamping tooth 122 and the second clamping tooth on the opposite first side surface and second side surface, the stability of the clamping between the female end limiting piece 120 and the female end body 110 can be ensured.

[0050] Further, the first clamping tooth 122 includes a first sub-tooth 1221 and a second sub-tooth 1222, and the first sub-tooth 1221 and the second sub-tooth 1222 are sequentially and spaced apart in the depth direction of the female end matching groove 113; wherein when the female end limiting piece 120 is in the first position, the first sub-tooth 1221 is clamped with the first clamping groove, and when the female end limiting piece 120 is in the second position, the second sub-tooth 1222 is clamped with the first clamping groove.

[0051] In this way, by setting the first sub-tooth 1221, the female end limiting piece 120 can be stopped at the first position, and by setting the second sub-tooth 1222, the female end limiting piece 120 can be stopped at the second position.

[0052] In some embodiments of the present application, the plurality of first female end holes includes a first sub-hole and a second sub-hole, the aperture of the first sub-hole is larger than the aperture of the second sub-hole, that is, the first sub-hole and the second sub-hole are of different specifications, and the first sub-hole and the second sub-hole correspond to two specifications of female terminals, so that the connector hole section can adapt to the electrical connection of female terminals of different specifications.

[0053] Further, the plurality of first female end holes further includes a third sub-hole, the aperture of the third sub-hole is larger than the aperture of the first sub-hole, so that the connector female end can adapt to female terminals of three different specifications, improve the integration of the connector female end, and improve the applicability of the connector female end.

[0054] In order to better save the arrangement space of the plurality of first female end holes, the third sub-hole of larger size can be arranged on the circumferential outer side of the plurality of second sub-holes, and the first sub-hole is arranged between the second sub-hole and the third sub-hole.

[0055] The present application also provides a connector male end, please refer to Figure 3 , the connector male end cooperates with the connector female end, and the connector male end is applied to a male terminal. The connector male end includes a male end main body 130 cooperating with the female end main body 110. The male end main body 130 is provided with a male end hole. The male end hole penetrates the male end main body 130 in the plug-in direction (for example Figure 3 , the up-down direction shown in the figure), the male terminal is arranged in the male end hole, and the male connecting end of the male terminal extends out of the male end hole.

[0056] The male connecting end is the part of the male terminal cooperating with the male end main body 130. By arranging the male end main body 130 cooperating with the female end main body 110, the electrical connection between the electrical element connected with the female terminal and the electrical element connected with the male terminal is realized.

[0057] The number of male end holes corresponds to the number of first female end holes, that is, the first female end hole and the male end hole correspond one by one.

[0058] Specifically, the male end main body 130 includes a plug-in cavity 131 and an auxiliary piece 140. The plug-in cavity 131 has an opening facing the female end main body 110, and the male connecting end is located in the plug-in cavity 131. The auxiliary piece 140 is arranged in the plug-in cavity 131, and the auxiliary piece 140 includes an auxiliary hole 141. The auxiliary hole 141 penetrates the auxiliary piece 140 in the plug-in direction, and the male connecting end is sequentially arranged in the male end hole and the auxiliary hole 141.

[0059] The number of male end holes corresponds to the number of first female end holes, that is, the first female end hole and the male end hole correspond one by one.

[0060] In this way, by arranging the auxiliary piece 140, the circumferential limit of the male connecting end of the male terminal can be provided, the length of the male connecting end extending part is reduced, and the effect of improving the skew phenomenon is improved, which plays a role in righting the male connecting end.

[0061] It should be noted that the cross section of the auxiliary member 140 matches the cross section of the insertion cavity 131, so that when the auxiliary member 140 is installed in the insertion cavity 131, the auxiliary member 140 is tightly matched with the insertion cavity 131, and the auxiliary member 140 cannot shake in the insertion cavity 131, further avoiding the situation that the male connecting end is skewed.

[0062] In some embodiments of the present application, the peripheral wall of the male end hole is provided with a positioning hole 132, and the connector male end further includes a sleeve member, which is clamped into the positioning hole 132 and respectively clamped with the male terminal and the peripheral wall of the positioning hole 132.

[0063] Specifically, the sleeve member is a C-shaped nest 150, the opening of the C-shaped nest 150 extends into the positioning hole 132 and is clamped on the male connecting end, and respectively clamped with the male terminal and the peripheral wall of the positioning hole 132, realizing the positioning of the male terminal corresponding to the positioning hole 132.

[0064] It should be noted that the larger the diameter of the terminal, the greater the insertion and extraction force it receives during the insertion and extraction of the male end main body 130 and the female end main body 110, and the more likely it is to fall off. When the female terminal and the male terminal are terminals with large diameters, the C-shaped nest 150 can be provided to further limit the terminals with large diameters. Avoid the phenomenon of falling off of the terminals with large diameters during the insertion process.

[0065] Among them, the C-shaped nest 150 includes a limiting boss 151, which abuts with the hole wall of the positioning hole 132, providing the male terminal with limiting in the insertion and extraction direction.

[0066] In some embodiments of the present application, the male end hole includes a fourth sub-hole and a fifth sub-hole, the hole diameter of the fourth sub-hole is larger than the hole diameter of the fifth sub-hole, so that the connector male end can simultaneously connect the male terminals of the fourth sub-hole and the fifth sub-hole specifications, improving the versatility and integration of the connector male end.

[0067] Further, the male end hole can further include a sixth sub-hole, and the hole diameter of the sixth sub-hole is larger than the hole diameter of the fourth sub-hole. In this way, the connector male end can simultaneously connect male terminals of three size specifications, improving the versatility and integration of the connector male end.

[0068] Further, in order to reduce the overall volume of the connector male end and improve the integration of the male end hole of the connector male end, the fifth sub-hole and the sixth sub-hole with larger hole diameters can be arranged on the outer side of the fourth sub-hole in the circumferential direction.

[0069] Among them, the fourth sub-hole can match the hole diameter of the first sub-hole, the fifth sub-hole can match the hole diameter of the second sub-hole, and the sixth sub-hole can match the hole diameter of the third sub-hole.

[0070] The application also provides a connector, which comprises a connector male end and a connector female end matched with each other, the connector female end can be the connector female end in the above solution, and the connector male end can be the connector male end in the above solution.

[0071] The application also provides a power utilization device, which can comprise a first electrical element, a second electrical element and a connector connected between the first electrical element and the second electrical element.

[0072] In the description of the utility model, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0073] 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 indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0074] In the description of the utility model embodiment, the term "and / or" means and covers any and all possible combinations of one or more of the listed items associated. The term "and / or" is a description of the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the utility model generally indicates that the front and rear associated objects are in an "or" relationship.

[0075] In the description of the utility model embodiment, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, "connection" can be detachable connection, or non-detachable connection; can be direct connection, or indirect connection through intermediate medium. Among them, "fixed connection" means that the relative positional relationship after connection is unchanged. In addition, the orientation language mentioned in the utility model embodiment, such as "inner", "outer" and the like, is only the direction of the drawing, therefore, the orientation language used is to better and more clearly illustrate and understand the utility model embodiment, and is not to indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model embodiment.

[0076] In the description of the embodiments of the present application, the terms "comprising", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0077] The above is only a specific embodiment of the present application, so that those skilled in the art can understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A female connector, characterized by, The utility model relates to a connector, comprising: a female end body comprising a first body segment and a second body segment connected in sequence in a plug-in direction, the first body segment and the second body segment surrounding a female end fitting groove, an open mouth of the female end fitting groove being located on an outer circumferential surface of the female end body; the first body segment comprising a first female end hole penetrating the first body segment in the plug-in direction, the second body segment comprising a second female end hole opposite to the first female end hole, the second female end hole penetrating the second body segment in the plug-in direction, the first female end hole and the second female end hole both communicating with the female end fitting groove; a female end limiting piece inserted into the female end fitting groove from the open mouth, the female end limiting piece being provided with a third female end hole penetrating the female end limiting piece in the plug-in direction; wherein the female end limiting piece comprises a first position and a second position, when the female end limiting piece is in the first position, a female end sub is sequentially arranged in the first female end hole, the third female end hole and the second female end hole, a side wall of the third female end hole being opposite to a clamping position of the female end sub, when the female end limiting piece is in the second position, the side wall of the third female end hole is clamped into the clamping position of the female end sub.

2. The female end of the connector according to claim 1, characterized by the side wall of the third female end hole comprising a limiting surface close to the open mouth, when the female end limiting piece is in the second position, a side wall on a side where the limiting surface is located is clamped into the clamping groove.

3. The female end of claim 1, wherein, the female end limiting piece is clamped with the female end fitting groove.

4. The female end of claim 3, wherein, the female end limiting piece comprising a first side surface, a plane where the first side surface is located being perpendicular to a plane where the open mouth is located, the first side surface being provided with a first clamping tooth; the female end fitting groove comprising a first inner wall opposite to the first side surface, the first inner wall being provided with a first clamping groove matched with the first clamping tooth.

5. The female end of claim 4, wherein, the first clamping tooth comprising a first sub-tooth and a second sub-tooth, the first sub-tooth and the second sub-tooth being sequentially and spacedly arranged in a depth direction of the female end fitting groove; wherein when the female end limiting piece is in the first position, the first sub-tooth is clamped with the first clamping groove, when the female end limiting piece is in the second position, the second sub-tooth is clamped with the first clamping groove.

6. The female end of claim 4, wherein, the female end limiting piece comprising a second side surface opposite to the first side surface, the second side surface being provided with a second clamping tooth; the female end fitting groove comprising a second inner wall opposite to the second side surface, the second inner wall being provided with a second clamping groove matched with the second clamping tooth.

7. The female end of claim 1, wherein, the first female end hole comprising a first sub-hole and a second sub-hole, a hole diameter of the first sub-hole being larger than a hole diameter of the second sub-hole.

8. The female end of claim 7, wherein, the first female end hole further comprising a third sub-hole, a hole diameter of the third sub-hole being larger than a hole diameter of the first sub-hole.

9. A connector characterized by comprising: The utility model relates to a connector, comprising: a female end body comprising a first body segment and a second body segment connected in sequence in a plug-in direction, the first body segment and the second body segment surrounding a female end fitting groove, an open mouth of the female end fitting groove being located on an outer circumferential surface of the female end body; the first body segment comprising a first female end hole penetrating the first body segment in the plug-in direction, the second body segment comprising a second female end hole opposite to the first female end hole, the second female end hole penetrating the second body segment in the plug-in direction, the first female end hole and the second female end hole both communicating with the female end fitting groove; 10. An electrical device, characterized by a female end limiting piece inserted into the female end fitting groove from the open mouth, the female end limiting piece being provided with a third female end hole penetrating the female end limiting piece in the plug-in direction; wherein the female end limiting piece comprises a first position and a second position, when the female end limiting piece is in the first position, a female end sub is sequentially arranged in the first female end hole, the third female end hole and the second female end hole, a side wall of the third female end hole being opposite to a clamping position of the female end sub, when the female end limiting piece is in the second position, the side wall of the third female end hole is clamped into the clamping position of the female end sub. the side wall of the third female end hole comprising a limiting surface close to the open mouth, when the female end limiting piece is in the second position, a side wall on a side where the limiting surface is located is clamped into the clamping groove. the female end limiting piece is clamped with the female end fitting groove. the female end limiting piece comprising a first side surface, a plane where the first side surface is located being perpendicular to a plane where the open mouth is located, the first side surface being provided with a first clamping tooth; the female end fitting groove comprising a first inner wall opposite to the first side surface, the first inner wall being provided with a first clamping groove matched with the first clamping tooth. the first clamping tooth comprising a first sub-tooth and a second sub-tooth, the first sub-tooth and the second sub-tooth being sequentially and spacedly arranged in a depth direction of the female end fitting groove; wherein when the female end limiting piece is in the first position, the first sub-tooth is clamped with the first clamping groove, when the female end limiting piece is in the second position, the second sub-tooth is clamped with the first clamping groove. the female end limiting piece comprising a second side surface opposite to the first side surface, the second side surface being provided with a second clamping tooth; the female end fitting groove comprising a second inner wall opposite to the second side surface, the second inner wall being provided with a second clamping groove matched with the second clamping tooth. the first female end hole comprising a first sub-hole and a second sub-hole, a hole diameter of the first sub-hole being larger than a hole diameter of the second sub-hole. the first female end hole further comprising a third sub-hole, a hole diameter of the third sub-hole being larger than a hole diameter of the first sub-hole. The utility model relates to a connector, comprising: a female end body comprising a first body segment and a second body segment connected in sequence in a plug-in direction, the first body segment and the second body segment surrounding a female end fitting groove, an open mouth of the female end fitting groove being located on an outer circumferential surface of the female end body; the first body segment comprising a first female end hole penetrating the first body segment in the plug-in direction, the second body segment comprising a second female end hole opposite to the first female end hole, the second female end hole penetrating the second body segment in the plug-in direction, the first female end hole and the second female end hole both communicating with the female end fitting groove; a female end limiting piece inserted into the female end fitting groove from the open mouth, the female end limiting piece being provided with a third female end hole penetrating the female end limiting piece in the plug-in direction; wherein the female end limiting piece comprises a first position and a second position, when the female end limiting piece is in the first position, a female end sub is sequentially arranged in the first female end hole, the third female end hole and the second female end hole, a side wall of the third female end hole being opposite to a clamping position of the female end sub, when the female end limiting piece is in the second position, the side wall of the third female end hole is clamped into the clamping position of the female end sub. the side wall of the third female end hole comprising a limiting surface close to the open mouth, when the female end limiting piece is in the second position, a side wall on a side where the limiting surface is located is clamped into the clamping groove. the female end limiting piece is clamped with the female end fitting groove. the female end limiting piece comprising a first side surface, a plane where the first side surface is located being perpendicular to a plane where the open mouth is located, the first side surface being provided with a first clamping tooth; the female end fitting groove comprising a first inner wall opposite to the first side surface, the first inner wall being provided with a first clamping groove matched with the first clamping tooth. the first clamping tooth comprising a first sub-tooth and a second sub-tooth, the first sub-tooth and the second sub-tooth being sequentially and spacedly arranged in a depth direction of the female end fitting groove; wherein when the female end limiting piece is in the first position, the first sub-tooth is clamped with the first clamping groove, when the female end limiting piece is in the second position, the second sub-tooth is clamped with the first clamping groove. the female end limiting piece comprising a second side surface opposite to the first side surface, the second side surface being provided with a second clamping tooth; the female end fitting groove comprising a second inner wall opposite to the second side surface, the second inner wall being provided with a second clamping groove matched with the second clamping tooth. the first female end hole comprising a first sub-hole and a second sub-hole, a hole diameter of the first sub-hole being larger than a hole diameter of the second sub-hole. the first female end hole further comprising a third sub-hole, a hole diameter of the third sub

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