Connector female terminal and connector

Abstract

The utility model relates to the technical field of connectors, and provides a connector female terminal and a connector, the connector female terminal comprises a main body, a plurality of first elastic sheets and a fixing ring, the plurality of first elastic sheets are arranged at one end of the main body in a surrounding manner at intervals so as to construct a connecting cavity for connecting a male terminal; the fixing ring sleeves the ends, away from the main body, of the first elastic pieces, and the fixing ring is provided with notches extending in the length direction of the first elastic pieces. The current-carrying capability and the connection stability of the connector can be improved, and the service life of the connector is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and particularly provides a female terminal of a connector and a connector. Background Art

[0002] A connector is a fitting product used to achieve electrical connection. Generally, a connector includes a male terminal and a female terminal disposed inside an insulating housing. The male terminal is inserted into the female terminal to achieve the transmission of current or signals.

[0003] However, currently, there are few contact points when the male terminal is inserted into the female terminal, which will cause insufficient current-carrying capacity and the phenomenon of loose insertion. In addition, since the female terminal generally uses copper material, it is easily damaged after multiple insertions and removals, and has a short service life. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a female terminal of a connector and a connector, aiming to solve the problems of insufficient current-carrying capacity and low durability of existing connectors.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] This application provides a female terminal of a connector, including:

[0007] A main body;

[0008] A plurality of first elastic pieces, which are annularly arranged around one end of the main body at intervals to form a connection cavity for connecting a male terminal;

[0009] A fixing ring, which is sleeved on one end of the plurality of first elastic pieces away from the main body, and the fixing ring is provided with a cut along the length direction of the first elastic piece.

[0010] For the female terminal of the connector provided in this application, a relatively uniform clamping force can be provided by a plurality of annularly arranged first elastic pieces to achieve stable insertion with the male terminal; and the first elastic piece and the male terminal are in surface contact, with a large contact area, which can effectively improve the current-carrying capacity of the connector; in addition, on the one hand, the fixing ring with a cut can further provide an additional clamping force, and cooperate with the first elastic piece to make the clamping of the male terminal more stable. On the other hand, it can also play a certain protective role for the first elastic piece, thereby extending the service life of the female terminal.

[0011] Optionally, each of the first elastic pieces has a first connection end and a first free end opposite to each other. The first connection end of each first elastic piece is connected to one end of the main body, and a part of each first elastic piece adjacent to the first free end is recessed toward the central axis of the connection cavity to form a clamping portion for clamping the male terminal;

[0012] And the fixing ring is sleeved on the clamping portions of the plurality of first elastic pieces.

[0013] Optionally, both sides of the portion of each first elastic piece adjacent to the first connection end are recessed relative to each other in the length direction to form a contraction portion.

[0014] Optionally, the first free ends of the first elastic pieces extend outward in a direction away from the central axis of the connection cavity.

[0015] Optionally, the female connector terminal further includes a fixing sleeve, and the fixing sleeve is sleeved on the main body.

[0016] Optionally, the fixing sleeve is provided with a slotted opening, and a second elastic piece is arranged in the slotted opening. The second elastic piece has opposite second connection ends and second free ends. The second connection ends are connected to the side walls of the slotted opening, and the second free ends extend outward in a direction away from the central axis of the connection cavity.

[0017] Optionally, the number of the slotted openings is multiple, and the multiple slotted openings are annularly distributed along the circumferential direction of the fixing sleeve.

[0018] Optionally, the fixing sleeve has opposite first and second ends. The first end is provided with a plurality of annularly distributed first buckles, and each first buckle is clamped to one end of the main body at the interval between adjacent first elastic pieces; the second end is provided with a plurality of annularly distributed second buckles, and each second buckle is clamped to the end of the main body away from the first elastic pieces.

[0019] Optionally, a wiring structure is arranged at the end of the main body away from the first elastic pieces.

[0020] This application also provides a connector, including: the above-mentioned female connector terminal.

[0021] For the connector provided by this application, the multiple annularly distributed first elastic pieces of the female connector terminal can provide relatively uniform clamping force to achieve stable insertion with the male terminal; and the first elastic piece and the male terminal are in surface contact, with a relatively large contact area, which can effectively improve the current-carrying capacity of the connector; in addition, on the one hand, the fixing ring with a notch can further provide additional clamping force and cooperate with the first elastic piece to make the clamping of the male terminal more stable, and on the other hand, it can also play a certain protective role for the first elastic piece, thereby extending the service life. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Structural schematic diagram of the female terminal of the connector provided by the embodiment of the present application;

[0024] Figure 2 Structural schematic diagram of the main body provided by the embodiment of the present application;

[0025] Figure 3 Structural schematic diagram of the fixing ring provided by the embodiment of the present application;

[0026] Figure 4 Structural schematic diagram of the fixing sleeve provided by the embodiment of the present application;

[0027] Figure 5 One of the schematic diagrams of the wiring structure provided by the embodiment of the present application;

[0028] Figure 6 Another schematic diagram of the wiring structure provided by the embodiment of the present application.

[0029] Among them, the reference numerals in the drawings are as follows:

[0030] 1, main body; 2, first elastic piece; 3, fixing ring; 4, interval; 5, connection cavity; 6, notch;

[0031] 7, first connection end; 8, first free end; 9, central axis; 10, clamping part; 11, contraction part;

[0032] 12, fixing sleeve; 13, slotted opening; 14, second elastic piece; 15, second connection end;

[0033] 16, second free end; 17, first end; 18, second end; 19, first buckle;

[0034] 20, second buckle; 21, wiring structure; 22, first connection part; 23, first crimping part;

[0035] 24, second connection part; 25, second crimping part; 26, third connection part; 27, wire pressing sleeve;

[0036] 28, fourth connection part; 29, welding platform. Detailed implementation manners

[0037] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application.

[0038] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0040] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0041] According to an embodiment of the first aspect of the present application, as shown in Figures 1 - 3 The female terminal of the connector provided by the present application includes: a body 1, a plurality of first elastic pieces 2, and a fixing ring 3. Among them, the plurality of first elastic pieces 2 are annularly arranged around one end of the body 1 at intervals 4 to construct a connection cavity 5 for connecting a male terminal; the fixing ring 3 is sleeved on one end of the plurality of first elastic pieces 2 away from the body 1, and the fixing ring 3 is provided with a cut 6 extending along the length direction X of the first elastic piece 2.

[0042] In this embodiment of the present application, it is intended to improve the performance of the female terminal in the connector, especially to improve its current-carrying capacity and durability. Specifically:

[0043] The body 1 is the basic part of the female terminal and is used to support and fix other components.

[0044] A plurality of first elastic pieces 2 are arranged at intervals to form a connection cavity 5. When the male terminal is inserted, it will enter the connection cavity 5 formed by the first elastic pieces 2. Since there are a relatively large number of first elastic pieces 2, a plurality of contact points are formed between them and the male terminal, which increases the total contact area and thus improves the current-carrying capacity. Moreover, the design of the first elastic pieces 2 can provide a larger contact area to ensure a more stable clamping force when plugging with the male terminal.

[0045] The fixing ring 3 can be a steel ring. The fixing ring 3 is sleeved on the end of the first elastic piece 2. The notch 6 on the fixing ring 3 can allow it to deform slightly as the male terminal is inserted. This deformation helps to provide an additional clamping force, improve the clamping stability of the first elastic piece 2 on the male terminal, and the first elastic piece 2 can be protected by the fixing ring 3 to prevent excessive deformation of the first elastic piece 2 caused by repeated plugging and unplugging, so that the first elastic piece 2 can still maintain a good contact pressure, thereby effectively extending the service life of the female terminal.

[0046] The specific number of the first elastic pieces 2 in this application is not particularly limited. For example, it can be eight or even more, which can effectively improve the current-carrying capacity of the connector, provide a more uniform clamping force, and achieve stable plugging of the male terminal.

[0047] According to an embodiment of the present application, referring to Figure 1 and Figure 2 As shown, each first elastic piece 2 has a relative first connection end 7 and a first free end 8. The first connection end 7 of each first elastic piece 2 is connected to one end of the main body 1. The part of each first elastic piece 2 adjacent to the first free end 8 is recessed toward the central axis 9 of the connection cavity 5 to form a clamping portion 10 for clamping the male terminal. And the fixing ring 3 is sleeved on the clamping portions 10 of the plurality of first elastic pieces 2.

[0048] In this embodiment of the present application, one end (i.e., the first connection end 7) of each first elastic piece 2 is connected to the main body 1 to ensure the fixation of the first elastic piece 2 on the main body 1.

[0049] The other end (i.e., the first free end 8) of each first elastic piece 2 is not restricted and can freely deform to adapt to the insertion of the male terminal.

[0050] The part of the first elastic piece 2 adjacent to the first free end 8 is recessed toward the central axis 9 of the connection cavity 5 to form the clamping portion 10. The purpose of this part of the design is to better clamp the male terminal and ensure stable and reliable connection.

[0051] The fixing ring 3 is sleeved on the clamping portions 10 of the plurality of first elastic pieces 2, which means that the fixing ring 3 is not only sleeved on the first elastic piece 2 but also exactly located at the position of the clamping portion 10 to cooperate with the clamping portion 10 to make the clamping of the male terminal more stable and at the same time play a role in protecting the clamping portion 10.

[0052] Specifically, when the male terminal is inserted into the connection cavity 5 of the female terminal, the first contact is the clamping portion 10 of the first elastic piece 2. The design of the clamping portion 10 causes the first elastic piece 2 to elastically deform under the pressure of the male terminal, and the clamping portion 10 will closely adhere to the surface of the male terminal, forming a stable surface contact. Since the number of the first elastic pieces 2 is relatively large, this surface contact will occur simultaneously at multiple positions, thus greatly increasing the contact area and the clamping force.

[0053] The fixing ring 3 is sleeved on the clamping portion 10 of the first elastic piece 2, which can limit the deformation range of the first elastic piece 2 and avoid poor contact or damage caused by excessive deformation. The notch 6 of the fixing ring 3 is designed to allow it to slightly deform according to the working conditions to adapt to the insertion and extraction of the male terminal, and at the same time provide an additional clamping force to ensure the stability of the connection.

[0054] Therefore, in the embodiment of the present application, by increasing the number of contact points and optimizing the contact method, the current-carrying capacity of the connector is improved. And through the cooperation of the fixing ring 3 and the first elastic piece 2, the stability and durability of the connection are improved, the possibility of plugging looseness is reduced, and the service life of the female terminal is extended.

[0055] According to an embodiment of the present application, as shown in Figure 2 Both sides of the portion of each first elastic piece 2 adjacent to the first connection end 7 are relatively recessed along the length direction X to form a contraction portion 11.

[0056] Specifically, the recessed wall surface of the contraction portion 11 can be an arc surface. The design of this contraction portion 11 makes the portion of the first elastic piece 2 close to the first connection end 7 become thinner, which helps to improve the elasticity of the first elastic piece 2. Higher elasticity means that when the male terminal is inserted, the first elastic piece 2 can generate a greater clamping force to ensure that the male terminal is stably clamped, improving the stability of the connection. This design can also ensure that even after multiple insertions and extractions, the first elastic piece 2 can still maintain sufficient elastic recovery ability, which helps to extend the service life of the first elastic piece 2.

[0057] According to an embodiment of the present application, as shown in Figure 1 and Figure 2 Both the first free ends 8 of each first elastic piece 2 expand outward in a direction away from the central axis 9 of the connection cavity 5.

[0058] In this embodiment of the present application, the first free end 8 of each first elastic piece 2 expands outward, that is, expands outward in a direction away from the central axis 9 of the connection cavity 5. This design makes the entrance of the connection cavity 5 wider, facilitating the preliminary positioning and insertion of the male terminal and reducing the difficulty of insertion.

[0059] Specifically, when the male terminal approaches the connection cavity 5 of the female terminal, the first free end 8 of the first elastic piece 2 will not immediately exert a large clamping force on the male terminal due to its outward expansion design. The male terminal can smoothly enter the connection cavity 5 with less resistance. As the male terminal is further inserted, the first elastic piece 2 begins to deform and generates a clamping force on the male terminal, and this clamping effect is further enhanced by the fixing ring 3 to ensure the stability of the connection.

[0060] According to an embodiment of the present application, referring to Figure 1 and Figure 4 as shown, the female terminal of the connector further includes a fixing sleeve 12, and the fixing sleeve 12 is sleeved on the main body 1.

[0061] Specifically, the fixing sleeve 12 can be a steel sleeve, which has high hardness and wear resistance and can resist the influence of external environmental factors such as impact and extrusion. During use, the fixing sleeve 12 can prevent the main body 1 from deforming or being damaged due to external force, protect the main body 1 from being damaged, and thus extend the service life of the female terminal.

[0062] According to an embodiment of the present application, referring to Figure 1 and Figure 4 as shown, the fixing sleeve 12 is provided with a slot 13, and a second elastic piece 14 is arranged in the slot 13. The second elastic piece 14 has opposite second connection ends 15 and second free ends 16. The second connection end 15 is connected to the side wall of the slot 13, and the second free end 16 expands outward in a direction away from the central axis 9 of the connection cavity 5.

[0063] Specifically, the fixing sleeve 12 is provided with a slot 13, and the position and size of the slot 13 are designed to accommodate the second elastic piece 14.

[0064] The second elastic piece 14 has a second connection end 15 and a second free end 16. The second connection end 15 is connected to the side wall of the slot 13 to ensure the fixation of the second elastic piece 14 on the fixing sleeve 12. The second free end 16 expands outward in a direction away from the central axis 9 of the connection cavity 5, so that when the female terminal is installed inside the insulating housing, the second free end 16 can expand outward and be snapped into the insulating housing to prevent the female terminal from loosening during use.

[0065] According to an embodiment of the present application, referring to Figure 4 as shown, the number of the slots 13 is multiple, and the multiple slots 13 are evenly distributed in a circumferential direction of the fixing sleeve 12. Correspondingly, the number of the second elastic pieces 14 is multiple, and the multiple second elastic pieces 14 are evenly distributed in a circumferential direction of the fixing sleeve 12. For example, the number of both the slots 13 and the second elastic pieces 14 can be three.

[0066] With such a design, it can be ensured that the female terminal can obtain a uniform clamping force when installed inside the insulating housing, so that the female terminal can be more stably fixed inside the insulating housing, reducing the risk of loosening, and contributing to improving the overall stability and reliability of the connector.

[0067] According to an embodiment of the present application, referring to Figure 1 and Figure 4 As shown, the fixing sleeve 12 has opposite first end 17 and second end 18. A plurality of circumferentially arranged first buckles 19 are provided at the first end 17 of the fixing sleeve 12, and each first buckle 19 is clamped at one end of the main body 1 at the interval 4 between adjacent first elastic pieces 2; a plurality of circumferentially arranged second buckles 20 are provided at the second end 18 of the fixing sleeve 12, and each second buckle 20 is clamped at one end of the main body 1 away from the first elastic piece 2. For example, the number of both the first buckles 19 and the second buckles 20 can be three.

[0068] Specifically, through the design of the first buckles 19 and the second buckles 20, it can be ensured that the connection between the fixing sleeve 12 and the main body 1 is more stable, reducing the possibility of loosening. And the buckle design helps to simplify the assembly process and improve production efficiency.

[0069] During the assembly process, the first end 17 of the fixing sleeve 12 is clamped to the interval 4 between adjacent first elastic pieces 2 through the first buckles 19. At the same time, the second end 18 of the fixing sleeve 12 is clamped to one end of the main body 1 away from the first elastic piece 2 through the second buckles 20. In this way, a firm connection is formed between the fixing sleeve 12 and the main body 1. This connection method can reduce loosening caused by vibration or external impact and improve the durability of the female terminal of the connector.

[0070] According to an embodiment of the present application, referring to Figure 1 、 Figure 5 and Figure 6 As shown, a wiring structure 21 is provided at one end of the main body 1 away from the first elastic piece 2, and the wiring structure 21 is used for connecting a wire.

[0071] As Figure 1 shown, the wiring structure 21 includes a first connection part 22, a first crimping part 23, a second connection part 24 and a second crimping part 25 connected in sequence. The first connection part 22 is connected to the end of the main body 1. The first crimping part 23 is used for crimping the wire head, and the second crimping part 25 is used for crimping the wire outer sheath.

[0072] As Figure 5 shown, the wiring structure 21 includes a connected third connection part 26 and a wire crimping sleeve 27. The third connection part 26 is connected to the end of the main body 1, and the wire crimping sleeve 27 is used for crimping the wire.

[0073] As Figure 6As shown, the wiring structure 21 includes a connected fourth connection part 28 and a welding platform 29. The fourth connection part 28 is connected to the end of the main body 1, and the welding platform 29 is used for ultrasonic welding of wires.

[0074] According to an embodiment of the present application, the main body 1 of the female terminal, the first elastic piece 2, and the wiring structure 21 are integrally formed by stamping a metal sheet (such as a copper sheet) through a mold. And the fixing ring 3 of the female terminal is integrally formed by stamping a metal sheet (such as a stainless steel sheet) through a mold. The fixing sleeve 12 of the female terminal is also integrally formed by stamping a metal sheet (such as a stainless steel sheet) through a mold. Such a design can simplify the manufacturing process and reduce the manufacturing cost.

[0075] According to an embodiment of the second aspect of the present application, the present application further provides a connector, including: an insulating housing, a male terminal, and the connector female terminal of the above embodiment. The male terminal and the female terminal are arranged inside the insulating housing, and the male terminal is inserted into the female terminal to achieve the transmission of current or signals.

[0076] The connector provided by the embodiment of the present application, since it includes the connector female terminal of the above embodiment, thus has all the technical effects of the connector female terminal of the above embodiment, which will not be elaborated here.

[0077] The above are only the preferred embodiments of the present application and are not used to limit the embodiments of the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A female connector terminal, characterized in that: include: main body; A plurality of first elastic sheets, wherein the plurality of first elastic sheets are arranged around one end of the main body at intervals to form a connection cavity for connecting a male terminal; A fixing ring is sleeved on one end of the plurality of first elastic sheets away from the main body, and the fixing ring is provided with a cutout extending along the length direction of the first elastic sheets.

2. The connector female terminal according to claim 1, characterized in that: Each of the first elastic sheets has a first connecting end and a first free end opposite to each other, the first connecting end of each of the first elastic sheets is connected to one end of the main body, and a portion of each of the first elastic sheets adjacent to the first free end is recessed toward the central axis of the connecting cavity to form a clamping portion, and the clamping portion is used to clamp the male terminal; And the fixing ring is sleeved on the clamping parts of the plurality of first elastic sheets.

3. The connector female terminal according to claim 2, characterized in that: Two sides of a portion of each first elastic sheet adjacent to the first connecting end along the length direction are relatively recessed to form a contraction portion.

4. The connector female terminal according to claim 2, characterized in that: The first free end of each first elastic piece expands outward in a direction away from the central axis of the connecting cavity.

5. The connector female terminal according to any one of claims 1 to 4, characterized in that: The connector female terminal also includes a fixing sleeve, and the fixing sleeve is sleeved on the main body.

6. The connector female terminal according to claim 5, characterized in that: The fixing sleeve is provided with a slot, in which a second elastic sheet is provided. The second elastic sheet has a second connecting end and a second free end opposite to each other. The second connecting end is connected to the side wall of the slot, and the second free end expands outward in a direction away from the central axis of the connecting cavity.

7. The connector female terminal according to claim 6, characterized in that: The number of the slots is multiple, and the multiple slots are distributed along the circumference of the fixing sleeve.

8. The connector female terminal according to claim 5, characterized in that: The fixing sleeve has a first end and a second end opposite to each other, the first end is provided with a plurality of first buckles of a ring cloth, each of the first buckles is clamped to one end of the main body at the interval between adjacent first elastic sheets; the second end is provided with a plurality of second buckles of a ring cloth, each of the second buckles is clamped to one end of the main body away from the first elastic sheet.

9. The connector female terminal according to any one of claims 1 to 4, characterized in that: A wiring structure is provided at one end of the main body away from the first elastic sheet.

10. A connector, characterized in that: include: The connector female terminal according to any one of claims 1 to 9.

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