Connector terminal structure and connector

Abstract

The embodiment of the utility model relates to a connector terminal structure and a connector. The connector terminal structure comprises a female terminal and a male terminal which are formed by stamping, the female terminal comprises a plug sleeve part, a first retaining sleeve and a first clamping part, the first retaining sleeve and the first clamping part are formed by seamless machining, the plug sleeve part comprises a plug sleeve body of a tubular structure, a first cable connecting part and an abutting part, the abutting part abuts against the male terminal, and the first retaining sleeve is clamped on the plug sleeve body in a sleeving mode; the male terminal comprises a pin piece, a second retaining sleeve and a second clamping piece, the second retaining sleeve and the second clamping piece are seamlessly machined and formed, the pin piece comprises a pin body, a second cable connecting part and an inserting part, the inserting part is inserted into the abutting part and abuts against the abutting part, and the second retaining sleeve is clamped on the pin body in a sleeving mode. According to the terminal structure provided by the embodiment of the invention, the first retaining sleeve and the second retaining sleeve which are seamlessly formed are sleeved, so that the overall strength of the terminal structure can be improved, and the phenomenon that the plug bush body or the pin body is cracked due to repeated plugging and unplugging is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic connectors, and in particular to a connector terminal structure and a connector. Background Art

[0002] Photovoltaic connectors are commonly used in solar photovoltaic power generation systems. They are used to connect solar panels or between panels and inverters. Photovoltaic connectors are widely used in home and commercial photovoltaic systems, as well as large solar power plants. Photovoltaic connectors have reliable connection performance, high durability and waterproof performance, providing important support for the installation and operation of solar energy systems.

[0003] Photovoltaic connectors usually use a socket in a female end structure to plug into a pin in a male end structure to achieve circuit conduction and electrical connection to transmit current.

[0004] In recent years, in order to achieve low resistance and low cost, the crown spring, plug sleeve and stopper are designed as an integrated structure in the female end structure, and correspondingly, the plug pin and stopper are designed as an integrated structure in the male end structure. Generally, stamping is adopted, and the joints are connected by riveting. However, this integrated structure itself is not strong enough, and cracks will occur after multiple plugging and unplugging, and the joints will become larger, thus affecting the connection effect. Summary of the invention

[0005] In view of this, an embodiment of the present application provides a connector terminal structure to solve at least one problem existing in the background technology.

[0006] In a first aspect, an embodiment of the present application provides a connector terminal structure, the terminal structure comprising a female terminal and a male terminal, the male terminal being inserted into the female terminal to achieve electrical connection, the female terminal having a first seam, the male terminal having a second seam, wherein:

[0007] The female terminal comprises a plug set, a first stop sleeve formed by seamless processing and a first clamping piece, the plug set comprises a plug body of a tubular structure and a first cable connecting part respectively connected to both ends of the plug body and an abutting part of a tubular structure, the abutting part abuts against the male terminal to achieve electrical connection, the first cable connecting part is used to connect the cable, the first stop sleeve is sleeved on the plug body and clamped by the first clamping piece;

[0008] The male terminal includes a pin part, a second seamlessly formed locking sleeve and a second clamping part. The pin part includes a pin body and a second cable connecting part and a plug-in part connected to both ends of the pin body. The plug-in part is inserted into the abutting part and abuts against it. The second cable connecting part is used to connect the cable. The second locking sleeve is sleeved on the pin body and clamped by the second clamping part.

[0009] In combination with the first aspect of the present application, in an optional embodiment, the socket body, the first cable connecting portion and the abutting portion are integrally formed, and the pin body, the second cable connecting portion and the plug-in portion are integrally formed.

[0010] In combination with the first aspect of the present application, in an optional embodiment, the abutment portion includes a connecting ring and a plurality of spring leaves, the two ends of the spring leaves are respectively connected to the connecting ring and one end of the socket body, the plurality of spring leaves are circumferentially distributed around the axis of the socket body, the plurality of spring leaves are spaced apart, and in the axial direction of the socket body, the middle positions of the plurality of spring leaves gather toward the inner cavity of the socket body to form a waist-shaped cylindrical structure.

[0011] In combination with the first aspect of the present application, in an optional embodiment, a strip-shaped through hole is provided on the spring sheet, the length of the strip-shaped through hole extends along the axial direction of the socket body, and the strip-shaped through hole is located at the waist position of the waist-shaped cylindrical structure.

[0012] In combination with the first aspect of the present application, in an optional embodiment, the first stop sleeve has a plurality of first limiting spring plates at one end close to the first cable connection portion, and the plurality of first limiting spring plates are circumferentially distributed around the axis of the first stop sleeve and extend toward the outside of the first stop sleeve.

[0013] In combination with the first aspect of the present application, in an optional embodiment, the first stop sleeve has a plurality of rolled pieces at one end away from the first cable connection portion, the plurality of rolled pieces are arranged at intervals, the plurality of rolled pieces are circumferentially distributed around the axis of the first stop sleeve, and extend into the inner cavity of the first stop sleeve, and the plurality of rolled pieces are wrapped around the end of the abutment portion.

[0014] In combination with the first aspect of the present application, in an optional embodiment, the plug-in body has at least one first bayonet, the first stop sleeve has at least one second bayonet and a first clamping block extending along the edge of the second bayonet toward the inner cavity of the first stop sleeve, and the first clamping component includes at least the first bayonet, the second bayonet and the first clamping block.

[0015] In combination with the first aspect of the present application, in an optional embodiment, the second stop sleeve has a plurality of second limiting spring plates at one end close to the second cable connection portion, and the plurality of second limiting spring plates are circumferentially distributed around the axis of the second stop sleeve and extend toward the outside of the second stop sleeve.

[0016] In combination with the first aspect of the present application, in an optional embodiment, the first cable connecting portion includes a first tightening clip with a semicircular structure, and when the cable is inserted into the plug-in kit, the first tightening clip abuts against the cable.

[0017] In the second aspect, an embodiment of the present application provides a connector, including the connector terminal structure provided by any embodiment of the first aspect; and also including a female end connector and a male end connector, the female end connector and the male end connector are respectively mounted on the female terminal and the male terminal, and the female end connector is inserted into the male end connector.

[0018] A connector terminal structure provided in an embodiment of the present application can improve the overall strength of the terminal structure and avoid cracking on the socket body or the pin body due to repeated plugging and unplugging by sleeveing ​​a seamlessly formed first locking sleeve onto a socket body having a first seam and sleeveing ​​a second locking sleeve onto a pin body having a second seam.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 A cross-sectional view of a connector terminal structure provided in an embodiment of the present application;

[0022] Figure 2 An exploded diagram of a connector terminal structure provided in an embodiment of the present application;

[0023] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 A schematic diagram of another state of a first clamping block in a connector terminal structure provided in an embodiment of the present application.

[0025] Reference numerals:

[0026] 10. female terminal; 11a. first joint; 111. socket body; 1111. first bayonet; 112. abutment portion; 1121. connection ring; 1122. spring; 1123. strip-shaped through hole; 1124. gap; 113. first cable connection portion; 1131. first tightening clip; 12. first stop sleeve; 121. second bayonet; 122. first limit spring; 123. first clamping block; 124. roll piece;

[0027] 20. Male terminal; 21a. Second joint; 211. Pin body; 2111. Third bayonet; 212. Connecting portion; 213. Second cable connecting portion; 2131. Second tightening clip; 22. Second retaining sleeve; 221. Fourth bayonet; 222. Second limiting spring; 223. Second connecting block. DETAILED DESCRIPTION

[0028] The exemplary embodiments disclosed in the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the specific embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope disclosed in the present application to those skilled in the art.

[0029] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features known in the art are not described; that is, all features of the actual embodiments are not described here, and well-known functions and structures are not described in detail.

[0030] In the drawings, the sizes of layers, regions, elements and their relative sizes may be exaggerated for clarity. Like reference numerals denote like elements throughout.

[0031] It should be understood that when an element or layer is referred to as "on ...", "adjacent to ...", "connected to" or "coupled to" other elements or layers, it can be directly on, adjacent to, connected to or coupled to other elements or layers, or there can be intervening elements or layers. On the contrary, when an element is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" or "directly coupled to" other elements or layers, there is no intervening element or layer. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part. And when the second element, component, region, layer or part is discussed, it does not indicate that the present application necessarily has the first element, component, region, layer or part.

[0032] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used here for convenience of description to describe the relationship between an element or feature shown in the figure and other elements or features. It should be understood that in addition to the orientation shown in the figure, the spatial relationship terms are intended to also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is turned over, then the elements or features described as "under other elements" or "under it" or "under it" will be oriented as "on" other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0033] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0034] In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present application. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other implementation methods.

[0035] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a connector terminal structure, which includes a female terminal 10 and a male terminal 20, wherein the male terminal 20 is inserted into the female terminal 10 to achieve electrical connection, and the female terminal 10 has a first seam 11a, and the male terminal 20 has a second seam 21a. Both the female terminal 10 and the male terminal 20 are first formed and then wound into a tubular structure, and the first seam 11a and the second seam 21a are formed at the seams of the female terminal 10 and the male terminal 20, respectively.

[0036] The female terminal 10 and the male terminal 20 can be formed by stamping and then wound into a tubular structure, or formed by other molding methods and then wound into a tubular structure, which is not limited in the present embodiment. In addition, after the female terminal 10 and the male terminal 20 are wound into a tubular structure, they can be connected at the joint by riveting, and of course they can also be connected by other connection methods.

[0037] Among them, the female terminal 10 includes a plug-in sleeve, a seamlessly formed first stop sleeve 12 and a first clamping piece. The plug-in sleeve includes a tubular plug-in body 111 and a first cable connecting part 113 and a cylindrical abutting part 112 respectively connected to the two ends of the plug-in body 111. The abutting part 112 abuts against the male terminal 20 to achieve electrical connection. The first cable connecting part 113 is used to connect the cable. The first stop sleeve 12 is sleeved on the plug-in body 111 and clamped by the first clamping piece.

[0038] The male terminal 20 includes a pin part, a seamlessly formed second locking sleeve 22 and a second clamping part. The pin part includes a pin body 211 and a second cable connecting part 213 and a plug-in part 212 respectively connected to both ends of the pin body 211. The plug-in part 212 is used to be inserted into and abut against the abutting part 112 when the male terminal 20 is connected to the female terminal 10. The second cable connecting part 213 is used to connect the cable. The second locking sleeve 22 is mounted on the pin body 211 and clamped by the second clamping part.

[0039] In the embodiment of the present application, the female terminal 10 and the male terminal 20 formed by stamping are respectively formed with a first seam 11a and a second seam 21a, and the first retaining sleeve 12 formed by seamless processing is mounted on and clamped on the plug sleeve body 111, and the second retaining sleeve 22 formed by seamless processing is mounted on and clamped on the pin body 211. This can not only increase the structural strength of the first retaining sleeve 12 and the second retaining sleeve 22 themselves, but also improve the overall structural strength of the female terminal 10 and the male terminal 20, thereby avoiding the first seam 11a and the second seam 21a from becoming larger after multiple plugging and unplugging, thereby affecting the connection effect.

[0040] In an optional embodiment, the seamless processing includes laser cutting processing, and laser cutting is used to achieve seamless surfaces between the plug sleeve and the plug pin. The first clamping member, the second clamping member, and other components are further formed by a bending process.

[0041] In the prior art, the crown spring is connected to the inner wall of one end of the socket as an independent component, and the socket and the pin are electrically connected and transmit current through the crown spring as a bridge. As an independent component, the crown spring first needs to be installed in the socket, and secondly, it will increase the contact resistance, thereby increasing the power generation loss and reducing the power output.

[0042] In an optional embodiment, the socket body 111 , the first cable connecting portion 113 and the abutting portion 112 are integrally formed, and the pin body 211 , the second cable connecting portion 213 and the plugging portion 212 are integrally formed.

[0043] In the embodiment of the present application, the socket body 111, the first cable connecting portion 113 and the abutting portion 112 are integrally formed, or the pin body 211, the second cable connecting portion 213 and the plugging portion 212 are integrally formed, which can reduce contact resistance, thereby reducing power generation losses and increasing power output.

[0044] In an alternative embodiment, if Figure 3 As shown, the abutment portion 112 includes a connecting ring 1121 and a plurality of spring leaves 1122, two ends of the spring leaves 1122 are respectively connected to the connecting ring 1121 and one end of the plug-in body 111, the plurality of spring leaves 1122 are circumferentially distributed around the axis of the plug-in body 111, the plurality of spring leaves 1122 are spaced apart, and in the axial direction of the plug-in body 111, the middle positions of the plurality of spring leaves 1122 gather toward the inner cavity of the plug-in body 111 to form a waist-shaped cylindrical structure.

[0045] In the embodiments of the present application, Figure 3As shown, in the axial direction of the cylindrical structure, the cylindrical structure gradually converges from the end to the middle position thereof toward its axis to form a cylindrical structure with a small diameter in the middle and large diameters at both ends, i.e., a waist-shaped cylindrical structure. The waist-shaped cylindrical structure can ensure the abutment effect between the spring piece 1122 and the plug pin. A plurality of spring pieces 1122 arranged at intervals are formed by a stamping process. There is a gap 1124 between adjacent spring pieces 1122. The spring pieces 1122 arranged at intervals can increase the contact points between them and the plug pin, reduce resistance and prevent stress relaxation. Smaller losses can improve energy utilization, and the device can be used normally even under high current and high voltage conditions.

[0046] In an alternative embodiment, if Figure 3 As shown, a strip-shaped through hole 1123 is provided on the spring sheet 1122 , the length of the strip-shaped through hole 1123 extends along the axial direction of the plug-in sleeve body 111 , and the strip-shaped through hole 1123 is located at the waist position of the waist-shaped cylindrical structure.

[0047] A strip through hole 1123 is provided on the spring piece 1122, and the strip through hole 1123 can divide the spring piece 1122 into more pieces at the waist position of the waist-shaped cylindrical structure, thereby increasing the contact points between the spring piece 1122 and the pin, further reducing the resistance and preventing stress relaxation.

[0048] In an alternative embodiment, if Figure 1 and Figure 2 As shown, one end of the first retaining sleeve 12 close to the first cable connecting portion 113 has a plurality of first limiting spring pieces 122 , which are circumferentially distributed around the axis of the first retaining sleeve 12 and extend toward the outside of the first retaining sleeve 12 .

[0049] When the female terminal 10 is sleeved on the female end connector, multiple first limiting spring pieces 122 abut against the inner wall of the female end connector. The multiple first limiting spring pieces 122 are circumferentially distributed around the axis of the first retaining sleeve 12 and extend toward its outer side, which can improve the clamping effect between the female terminal 10 and the female end connector.

[0050] In an alternative embodiment, if Figure 1 and Figure 2 As shown, one end of the second retaining sleeve 22 close to the second cable connecting portion 213 has a plurality of second limiting spring pieces 222 , which are circumferentially distributed around the axis of the second retaining sleeve 22 and extend toward the outside of the second retaining sleeve 22 .

[0051] When the male terminal 20 is sleeved on the male connector, the plurality of second limiting spring pieces 222 abut against the inner wall of the male connector. The plurality of second limiting spring pieces 222 can improve the clamping effect between the male terminal 20 and the male connector.

[0052] Regarding the molding method of the first limiting spring piece 122 and the second limiting spring piece 222 in the embodiment of the present application, as an example, the first limiting spring piece 122 and the second limiting spring piece 222 are first formed by laser cutting and then by bending through a bending process. Of course, the first limiting spring piece 122 and the second limiting spring piece 222 can also be formed by other processing methods, which is not limited to the embodiment of the present application.

[0053] In an alternative embodiment, if Figure 2 As shown, the end of the first stop sleeve 12 away from the first cable connection part 113 has a plurality of roll sheets 124, the plurality of roll sheets 124 are arranged at intervals, the plurality of roll sheets 124 are circumferentially distributed around the axis of the first stop sleeve 12, and extend into the inner cavity of the first stop sleeve 12, and the plurality of roll sheets 124 are wrapped around the end of the abutment part 112.

[0054] The curling piece 124 in the embodiment of the present application can ensure the concentricity of the first anti-retraction sleeve 12 and the plug-in sleeve body 111. In addition, when the female terminal 10 and the female end connector are assembled, it is convenient for the female terminal 10 to be inserted. In addition, the curling piece 124 wrapped around the end of the abutment portion 112 can avoid cutting the operator.

[0055] In the embodiment of the present application, a plurality of roll sheets 124 are wrapped around the end of the abutment portion 112. It can be understood that the first stop sleeve 12 is sleeved on the plug body 111 and the abutment portion 112. When the pin is inserted into the abutment portion 112, the abutment portion 112 is subjected to force, which easily increases the first seam 11a. By sleeved the first stop sleeve 12 on the abutment portion 112, its structural strength can be enhanced to avoid increasing the first seam 11a.

[0056] In an alternative embodiment, if Figure 1 and Figure 2 As shown, the plug body 111 has at least one first bayonet 1111, the first stop sleeve 12 has at least one second bayonet 121 and a first clamping block 123 extending along the edge of the second bayonet 121 toward the inner cavity of the first stop sleeve 12, and the first clamping component at least includes the first bayonet 1111, the second bayonet 121 and the first clamping block 123.

[0057] In the embodiments of the present application, Figure 4 As shown, before the first anti-retraction sleeve 12 is sleeved on the plug sleeve, the first clamping block 123 at the edge of the second bayonet 121 is aligned with the tube wall of the first anti-retraction sleeve 12. Figure 1 As shown, after the first retaining sleeve 12 is sleeved on the socket, the first clamping block 123 is bent using a bending tool, and the first clamping block 123 is inserted into the first clamping opening 1111 of the socket body 111 to achieve the clamping connection between the socket body 111 and the first retaining sleeve 12.

[0058] In an alternative embodiment, if Figure 1 and Figure 2 As shown, the pin body 211 has at least one third snap-in socket 2111, the second stop sleeve 22 has at least one fourth snap-in socket 221 and a second snap-in block 223 extending along the edge of the fourth snap-in socket 221 toward the inner cavity of the second stop sleeve 22, and the second snap-in component includes at least the third snap-in socket 2111, the fourth snap-in socket 221 and the second snap-in block 223.

[0059] The clamping method of the pin body 211 and the second locking sleeve 22 is the same as the clamping direction of the socket body 111 and the first locking sleeve 12 in the above embodiment, and will not be repeated here.

[0060] In an alternative embodiment, if Figure 1 and Figure 2 As shown, the first cable connecting portion 113 includes a first tightening clip 1131 with a semicircular structure. When the cable is inserted into the plug-in kit, the first tightening clip 1131 abuts against the cable.

[0061] The first tightening clip 1131 is used to realize the electrical connection between the female terminal 10 and the cable. The semicircular first tightening clip 1131 can be wrapped around the cable under the action of the clamping tool to ensure the firmness of the connection between the cable and the female terminal 10.

[0062] In an alternative embodiment, if Figure 1 and Figure 2 As shown, the second cable connecting portion 213 includes a second tightening clip 2131 with a semicircular structure. When the cable is inserted into the pin component, the second tightening clip 2131 abuts against the cable.

[0063] The second tightening clip 2131 is used to realize the electrical connection between the male terminal 20 and the cable. The semicircular second tightening clip 2131 can abut against the cable under the action of the tightening tool to ensure the firmness of the connection between the cable and the male terminal 20.

[0064] The embodiment of the present application also provides a connector, including the connector terminal structure provided by any of the above embodiments, and also including a female end connector and a male end connector, the female end connector and the male end connector are respectively mounted on the female terminal 10 and the male terminal 20, and the female end connector is inserted into the male end connector.

[0065] When the female connector is mounted on the female terminal 10, the first plurality of limit springs 122 on the first stop sleeve 12 abut against the inner wall of the female connector. When the male connector is mounted on the male terminal 20, the second plurality of limit springs 222 on the second stop sleeve 22 abut against the inner wall of the male connector.

[0066] It should be noted that the connector terminal structure embodiment provided in this application and the connector embodiment belong to the same concept; the technical features in the technical solutions recorded in each embodiment can be arbitrarily combined without conflict. However, it should be further noted that the connector terminal structure provided in the embodiment of this application, the combination of its various technical features can already solve the technical problem to be solved by this application.

[0067] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present application that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present application and do not limit the scope of protection of the patent of this application.

Claims

1. A connector terminal structure, characterized in that: The terminal structure comprises a female terminal and a male terminal, wherein the male terminal is inserted into the female terminal to achieve electrical connection, the female terminal has a first seam, and the male terminal has a second seam, wherein: The female terminal comprises a plug set, a first stop sleeve formed by seamless processing and a first clamping piece, the plug set comprises a plug body of a tubular structure and a first cable connecting part respectively connected to both ends of the plug body and an abutting part of a tubular structure, the abutting part abuts against the male terminal to achieve electrical connection, the first cable connecting part is used to connect the cable, the first stop sleeve is sleeved on the plug body and clamped by the first clamping piece; The male terminal includes a pin part, a second seamlessly formed locking sleeve and a second clamping part. The pin part includes a pin body and a second cable connecting part and a plug-in part connected to both ends of the pin body. The plug-in part is inserted into the abutting part and abuts against it. The second cable connecting part is used to connect the cable. The second locking sleeve is sleeved on the pin body and clamped by the second clamping part.

2. The connector terminal structure according to claim 1, characterized in that: The socket body, the first cable connecting portion and the abutting portion are integrally formed, and the pin body, the second cable connecting portion and the plug connecting portion are integrally formed.

3. The connector terminal structure according to claim 1 or 2, characterized in that: The abutting portion includes a connecting ring and a plurality of spring leaves, the two ends of the spring leaves are respectively connected to the connecting ring and one end of the socket body, the plurality of spring leaves are circumferentially distributed around the axis of the socket body, the plurality of spring leaves are spaced apart, and in the axial direction of the socket body, the middle positions of the plurality of spring leaves gather toward the inner cavity of the socket body to form a waist-shaped cylindrical structure.

4. The connector terminal structure according to claim 3, characterized in that: The spring sheet is provided with a strip-shaped through hole, the length of which extends along the axial direction of the plug-in sleeve body, and the strip-shaped through hole is located at the waist position of the waist-shaped cylindrical structure.

5. The connector terminal structure according to claim 1, characterized in that: One end of the first stop sleeve close to the first cable connecting portion has a plurality of first limiting spring pieces, which are circumferentially distributed around the axis of the first stop sleeve and extend toward the outside of the first stop sleeve.

6. The connector terminal structure according to claim 1, characterized in that: The first stop sleeve has a plurality of rolled pieces at one end away from the first cable connection portion. The plurality of rolled pieces are arranged at intervals, circumferentially distributed around the axis of the first stop sleeve, and extend into the inner cavity of the first stop sleeve. The plurality of rolled pieces are wrapped around the end of the abutment portion.

7. The connector terminal structure according to claim 1, characterized in that: The plug body has at least one first bayonet, the first stop sleeve has at least one second bayonet and a first clamping block extending along the edge of the second bayonet toward the inner cavity of the first stop sleeve, and the first clamping component at least includes the first bayonet, the second bayonet and the first clamping block.

8. The connector terminal structure according to claim 1, characterized in that: One end of the second anti-retraction sleeve close to the second cable connecting part has a plurality of second limiting spring pieces, which are circumferentially distributed around the axis of the second anti-retraction sleeve and extend toward the outside of the second anti-retraction sleeve.

9. The connector terminal structure according to claim 1, characterized in that: The first cable connecting portion includes a first tightening clip with a semicircular structure. When the cable is inserted into the plug-in kit, the first tightening clip abuts against the cable.

10. A connector, characterized in that: It includes the connector terminal structure as described in any one of claims 1 to 9; it also includes a female end connector and a male end connector, the female end connector and the male end connector are respectively mounted on the female terminal and the male terminal, and the female end connector is inserted into the male end connector.

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