Connector terminal

Abstract

The utility model provides a connector terminal, which comprises a head part, a main body part and a tail part, the head part is sequentially provided with a fixing part, an elastic part, a contact part and a guide part from front to back, the fixing part is hollow, the elastic part is formed by extending backwards from the rear end of the fixing part, and the elastic part is formed by enclosing a plurality of elastic sheets. The inner diameter formed by enclosing the plurality of elastic sheets is gradually reduced from the fixed part to the contact part, the contact part is formed by horizontally and backwards extending from the rear end of the elastic part, the elastic part provides inward clamping force along the radial direction for the contact part, the contact part is formed by enclosing the plurality of contact sheets, and the guide part is formed by backwards extending from the rear end of the contact part. The contact sheets adjust the inner diameter enclosed by the contact sheets through relative movement or elastic deformation, thereby allowing the contact part to adapt to male end connector terminals with different diameters. According to the invention, by introducing the plurality of contact pieces and a relative movement or elastic deformation mechanism, the contact part can flexibly adapt to male end connector terminals with different diameters.

Description

Technical Field

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

[0002] With the rapid development of electronic connection technology, the performance and adaptability of connectors have become important criteria for measuring their quality. As the core component of connecting circuits, the design of connector terminals directly determines whether the connector can achieve stable and reliable electrical connections in different application scenarios.

[0003] In the current market, general connector terminals, especially round terminals made by stamping, have significant limitations in the design of the contact portion. The contact portion of these terminals is usually designed to be a fixed size, which can only correspond to and fit tightly to a male connector terminal of a certain diameter. However, in actual applications, due to different connector standards of different equipment and manufacturers, the diameter of the male connector terminal is often different. This single-size contact portion design leads to limitations in the use of the connector, and it cannot flexibly adapt to male connector terminals of various diameters, thereby limiting the versatility and application range of the connector.

[0004] In addition, due to the lack of necessary elasticity or adjustment mechanism in the contact part, even in some barely matching connection situations, it is easy to have problems such as poor contact, signal attenuation or unstable connection. These problems are more prominent when plugging and unplugging frequently or under external environmental influences such as vibration and impact, which seriously affects the service life and overall performance of the connector. Utility Model Content

[0005] The purpose of the present application is to provide a connector terminal which introduces multiple contact pieces and a mechanism of relative movement or elastic deformation so that the contact portion can flexibly adapt to male connector terminals of different diameters, thereby greatly improving the versatility and connection stability of the connector.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A connector terminal includes a head, a body portion, and a tail portion. The head is sequentially provided with a fixing portion, an elastic portion, a contact portion, and a guiding portion from front to back. The fixing portion is hollow. The elastic portion extends rearward from the rear end of the fixing portion. The elastic portion is formed by enclosing multiple elastic pieces. The inner diameter formed by enclosing the multiple elastic pieces gradually decreases from the fixing portion to the contact portion to form a clamping force at the contact portion. The contact portion extends horizontally rearward from the rear end of the elastic portion. The elastic portion provides a radially inward clamping force for the contact portion. The contact portion is formed by enclosing multiple contact pieces. The guiding portion extends rearward from the rear end of the contact portion. The contact pieces adjust the inner diameter formed by enclosing them through relative movement or elastic deformation, thereby allowing the contact portion to adapt to male terminal connectors with different diameters.

[0008] In one embodiment, the adjustable range of the inner diameter of the contact portion is 0.1 mm to 2 mm.

[0009] In one embodiment, the width of the elastic piece gradually decreases from the fixing portion to the contact portion.

[0010] In one embodiment, a gap is provided between the ends of each elastic piece near the fixing portion to allow the elastic pieces to move relative to each other when subjected to an external force, thereby adjusting the inner diameter formed by enclosing the elastic pieces and enhancing the adaptability of the connector terminal to male terminal connectors with different diameters.

[0011] In one embodiment, the length of the contact piece is less than or equal to 3 times the thickness of the terminal body portion.

[0012] In one embodiment, the guiding portion is formed by enclosing multiple guiding pieces. The inner diameter formed by enclosing the multiple guiding pieces gradually increases from the contact portion to the rear for guiding the insertion of the terminal of the male connector.

[0013] In one embodiment, an anti-impact rubber block is provided inside the body portion to prevent plastic from entering the head when injecting plastic into the tail portion, which may affect the contact of the terminal.

[0014] In one embodiment, the anti-impact rubber block includes a first block and a second block.

[0015] In one embodiment, the body portion is provided with a first electroplating solution leakage hole, and the first electroplating solution leakage hole is located between the first block and the second block.

[0016] In one embodiment, the body portion is provided with a second electroplating solution leakage hole, and the second electroplating solution leakage hole is located behind the first block.

[0017] The beneficial effects of this application are:

[0018] (1) The present invention adopts a structural design in the contact part, which is formed by enclosing multiple contact pieces. These contact pieces can flexibly adjust the inner diameter formed by enclosing between them through relative movement or elastic deformation. This design enables the connector terminal to adapt to male connector terminals with different diameters, greatly improving the versatility and application range of the connector, and reducing connection problems caused by differences in the diameters of male connector terminals.

[0019] (2) The elastic part is formed by enclosing multiple elastic pieces, and its inner diameter gradually decreases from the fixed part to the contact part. This design forms a strong clamping force at the contact part. When the male connector terminal is inserted, the elastic pieces of the elastic part are squeezed and further contract inward, enhancing the contact tightness with the male connector, thereby effectively improving the stability and reliability of the connection. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a connector terminal provided by an embodiment of the present application;

[0021] Figure 2 It is a schematic structural diagram of a connector terminal provided by an embodiment of the present application;

[0022] Figure 3 a is a schematic structural diagram of a male connector terminal with a diameter of R1 inserted into the connector terminal provided by an embodiment of the present application;

[0023] Figure 3 b is a schematic structural diagram of a male connector terminal with a diameter of R2 inserted into the connector terminal provided by an embodiment of the present application;

[0024] Description of the Reference Numerals:

[0025] 1. Head; 2. Main Body; 3. Tail;

[0026] 11. Fixed Part; 12. Elastic Part; 13. Contact Part; 14. Guide Part;

[0027] 121. Elastic Piece; 131. Contact Piece; 141. Guide Piece;

[0028] 4. First Stopper; 5. Second Stopper; 6. First Electroplating Solution Leak Hole; 7. Second Electroplating Solution Leak Hole; Detailed Embodiment

[0029] The terms used in the embodiment part of the present application are only used to explain the specific embodiments of the present application, rather than aiming to limit the present application. The following will describe the embodiments of the present application in detail with reference to the drawings.

[0030] This embodiment provides a connector terminal made by metal stamping process. First, a metal material with high electrical conductivity, good mechanical strength and corrosion resistance, such as copper alloy, is selected as the raw material for manufacturing the connector terminal. These materials can ensure the stable electrical performance and mechanical strength of the connector terminal during long-term use.

[0031] As Figure 1 shown, a connector terminal includes a head 1, a body part 2 and a tail part 3. The head 1 is sequentially provided with a fixing part 11, an elastic part 12, a contact part 13 and a guiding part 14 from front to back. The fixing part 11 is hollow. The elastic part 12 extends backward from the rear end of the fixing part 11. The elastic part 12 is formed by a plurality of elastic pieces 121 arranged in a ring around the central axis and enclosing. During the stamping process, by precisely controlling the die shape and stamping depth, the inner diameter R3 formed by the enclosure of the plurality of elastic pieces 121 gradually decreases from the fixing part 11 towards the contact part 13, so as to form the expected clamping force at the contact part 13. The contact part 13 extends horizontally backward from the rear end of the elastic part 12. The elastic part 12 provides an inward clamping force in the radial direction for the contact part 13. The contact part 13 is formed by a plurality of contact pieces 131 enclosing. The guiding part 14 extends backward from the rear end of the contact part 13. The design of the guiding part 14 is to guide the male connector terminal to be inserted smoothly and play a role in positioning and centering to a certain extent to ensure the accuracy of the connection. As Figure 3 shown, the contact pieces 131 adjust the inner diameter formed by their enclosure by relative movement or elastic deformation, so as to allow the contact part 13 to adapt to male connector terminals with different diameters.

[0032] As Figure 3As shown, when the male connector terminal B starts to be inserted, the first thing it contacts is the contact piece 131 of the contact portion 13. Due to the integrated design of the contact piece 131 and the elastic piece 121, any external force received by the contact piece 131 will be directly transmitted to the elastic piece 121. As the male connector terminal is further inserted, its diameter will gradually expand the contact piece 131, and then apply an outward expansion force to the elastic piece 121. Since the elastic piece 121 is an enclosed structure and has a certain elasticity and resilience, when it receives an outward expansion force, they will undergo elastic deformation. This deformation is uniform and will propagate along the length direction of the elastic piece 121. As the deformation progresses, the inner diameter formed by the enclosure of the elastic piece 121 will gradually become larger to adapt to the diameter of the male connector terminal. Although the contact piece 131 and the elastic piece 121 are physically integrated, they can still be regarded as two interacting parts functionally. The contact piece 131 is mainly responsible for establishing the initial contact with the male connector terminal and transmitting the insertion force; while the elastic piece 121 is responsible for adapting to the diameter change of the male connector terminal through elastic deformation. The combined action of these two ensures that the connector terminal can maintain stable contact and reliable connection during the insertion process. When the male connector terminal is fully inserted, the contact piece 131 and the elastic piece 121 have been adjusted to the appropriate inner diameter size and form a stable and tight contact with the male connector terminal. At this time, the resilience of the elastic piece 121 will provide an inward clamping force to ensure the stability and reliability of the connection. This clamping force can not only prevent the male connector terminal from loosening or falling off under vibration or external force, but also improve the quality of the electrical connection.

[0033] After stamping, it is also necessary to perform necessary subsequent processing on the connector terminal, such as deburring, surface treatment, etc., to improve its appearance quality and durability. At the same time, according to actual needs, a metal layer with excellent electrical conductivity can be plated on the terminal to enhance its electrical conductivity and corrosion resistance.

[0034] As Figure 3 shown, in this embodiment, the inner diameter R of the contact portion 13 is designed with an adjustable range, that is, 0.1 mm to 2 mm. This design enables the connector terminal to be compatible with more specifications of male connector terminals, greatly broadening its application range. By driving the relative movement between the contact pieces 131 through the deformation of the elastic piece 121, the inner diameter of the contact portion 13 can be easily adjusted to the required size to ensure the tightness and stability of the connection.

[0035] A barb limiting portion 8 is provided on the fixing portion for fixing the terminal in the connector.

[0036] As Figure 1As shown, in order to further optimize the performance of the connector terminal, the elastic piece 121 in this embodiment is designed with a gradually decreasing width L1 from the fixing part 11 to the contact part 13. This gradually changing width design not only helps the elastic piece 121 distribute stress more evenly when subjected to external forces, improving the strength and durability of the elastic piece 121, but also enables the elastic piece 121 to more smoothly adjust the inner diameter size during the deformation process. At the same time, the gradually changing width also enhances the clamping force formed by the elastic piece 121 at the contact part 13, ensuring the stability and reliability of the connection.

[0037] As Figure 1 shown, in one of the embodiments, a spacing L2 is provided between the ends of each elastic piece 121 close to the fixing part 11 to allow the elastic pieces 121 to move relative to each other when subjected to external forces, thereby adjusting the inner diameter size formed by the enclosure of the elastic pieces 121 and enhancing the adaptability of the connector terminal to male connector terminals with different diameters.

[0038] As Figure 3 shown, in order to ensure the compactness and stability of the connector terminal, the length L3 of the contact piece 131 in this embodiment is less than or equal to 3 times the thickness H1 of the terminal main body part 2. This helps to avoid problems such as loose or unstable structures caused by the overly long contact piece 131, and at the same time can ensure that the contact piece 131 can play a stable role during the electrical connection process.

[0039] As Figure 1 shown, in order to improve the accuracy and convenience of the connector terminal during the insertion process, the guiding part 14 in this embodiment is formed by enclosing multiple guiding pieces 141. The inner diameter formed by the enclosure of these guiding pieces 141 gradually increases from the contact part 13 backward, forming a natural guiding channel. When the male connector terminal is inserted, the guiding part 14 can guide it smoothly into the contact part 13, reducing the resistance and error during the insertion process and improving the accuracy and efficiency of the connection.

[0040] As Figure 2 shown, in order to prevent plastic from entering the head 1 during the injection molding of the tail 3 of the connector terminal and affecting the terminal contact performance, anti-flushing rubber blocks are provided in the main body part 2 of this embodiment. These blocks include a first block 4 and a second block 5, and they jointly act to form an effective barrier to prevent the intrusion of plastic materials. Through the design of the anti-flushing rubber blocks, the integrity and reliability of the connector terminal during the injection molding process are ensured.

[0041] As Figure 1As shown, in order to improve the electrical performance and corrosion resistance of the connector terminal, plating solution leakage holes are provided on the main body 2 in this embodiment. Among them, the first plating solution leakage hole 6 is located between the first stopper 4 and the second stopper 5, while the second plating solution leakage hole 7 is located at the rear side of the first stopper 4. The design of these leakage holes enables the plating solution to uniformly and fully penetrate into the parts to be plated, ensuring the quality and thickness of the plating layer. At the same time, the leakage holes can also play a role in exhausting air and discharging liquid during the plating process, improving the plating efficiency and quality.

[0042] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. 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 situations.

[0043] The device or element referred to in the embodiments of the present application or implied must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely defined.

[0044] The terms "first", "second", "third", "fourth", etc. (if any) in the description of the embodiments of the present application, the claims, and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances, so that the embodiments of the present application described here, for example, can be implemented in an order other than those illustrated or described here. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and not to limit them. Although the technical solutions of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A connector terminal, characterized in that: It includes a head, a main body and a tail. The head is successively provided with a fixing part, an elastic part, a contact part and a guiding part from front to back. The fixing part is hollow. The elastic part extends backward from the rear end of the fixing part. The elastic part is formed by enclosing multiple elastic pieces. The inner diameter formed by enclosing the multiple elastic pieces gradually decreases from the fixing part to the contact part to form a clamping force at the contact part. The contact part extends horizontally backward from the rear end of the elastic part. The elastic part provides a radially inward clamping force for the contact part. The contact part is formed by enclosing multiple contact pieces. The guiding part extends backward from the rear end of the contact part. The contact pieces adjust the inner diameter formed by enclosing them through relative movement or elastic deformation, so as to allow the contact part to adapt to male terminal connectors with different diameters.

2. The connector terminal according to claim 1, characterized in that: The adjustable range of the inner diameter of the contact part is 0.1 mm to 2 mm.

3. A connector terminal according to claim 1, wherein: The width of the elastic piece gradually decreases from the fixing part to the contact part.

4. A connector terminal according to claim 1, characterized in that: A gap is provided between the ends of each elastic piece close to the fixing part to allow the elastic pieces to move relatively when subjected to an external force, so as to adjust the inner diameter formed by enclosing the elastic pieces and enhance the adaptability of the connector terminal to male terminal connectors with different diameters.

5. A connector terminal according to claim 1, characterized in that: The length of the contact piece is less than or equal to 3 times the thickness of the terminal main body part.

6. A connector terminal according to claim 1, wherein: The guiding part is formed by enclosing multiple guiding pieces. The inner diameter formed by enclosing the multiple guiding pieces gradually increases from the contact part backward, and is used to guide the insertion of the terminal of the male connector.

7. A connector terminal according to claim 1, wherein: An anti-impact rubber block is arranged in the main body part to prevent plastic from entering the head when injecting plastic into the tail, which affects the terminal contact.

8. A connector terminal according to claim 7, characterized in that: The anti-impact rubber block includes a first block and a second block.

9. The connector terminal according to claim 8, wherein: The main body part is provided with a first electroplating solution leakage hole, and the first electroplating solution leakage hole is located between the first block and the second block.

10. A connector terminal according to claim 9, wherein: The main body part is provided with a second electroplating solution leakage hole, and the second electroplating solution leakage hole is located at the rear side of the first block.

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