Banana terminal adapted to different size sockets by increasing the degree of deformation

Abstract

The utility model relates to banana terminal technical field especially utilize the banana terminal of improving the deformation degree and adapting different size socket, including the terminal body that is bent into cylindrical structure through the mode of stamping, the rear end of terminal body is shaped with the fixed section of wire, the side surface of terminal body is surrounded and is provided with the long groove of multistage through, the bulge structure that bulges outward is formed between the adjacent two long grooves on the terminal body, the front end of terminal body is shaped with the multiple bending piece, the front end of terminal body is spherical surface structure to the bending piece of multiple bending piece bending inwards, and there is a gap between the two bending pieces of adjacent, cooperate the design of long groove and bending piece, bulge structure, the deformation degree of terminal overall is improved greatly, need not to replace the socket of adapting different size deviation terminal to solve the problem that the traditional terminal is led to the problem of the loose or not inserted of socket size difference, the versatility and application scene range of terminal are improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of banana terminal technology, and in particular to a banana terminal that adapts to different sized sockets by increasing its deformability. Background Technology

[0002] In fields such as electronic device connections, electrical testing instruments, and industrial control circuits, terminals are key components for achieving electrical connections. Their connection stability and ease of operation directly affect the operating efficiency and safety of the circuit system. Among them, banana terminals, as an important terminal type, are widely used in scenarios requiring temporary or fixed electrical connections, such as signal transmission in laboratory testing equipment, wiring in audio equipment, and conduction of partial circuits in automotive electronics, thanks to their special structural design and manufacturing process.

[0003] From a manufacturing and structural perspective, the banana-shaped terminal is produced using a continuous stamping process, ensuring production consistency and efficiency while precisely controlling structural dimensions. The terminal is cylindrical in shape, with rounded ends that significantly reduce mating resistance with the corresponding socket, facilitating alignment and smooth insertion, and simplifying manual operation. Simultaneously, the cylindrical side features several raised structures that provide moderate damping during insertion, preventing slippage and ensuring stable physical contact. This also increases the conductive contact area, reduces contact resistance, and ensures stable transmission of electrical signals or current, minimizing signal attenuation and current fluctuations caused by poor contact.

[0004] However, in the current technological landscape, due to differences in the control of socket production technology, the socket sizes of the same type of socket from different manufacturers generally vary, leading to significant problems in the practical application of banana-shaped terminals: On the one hand, the inner diameter of some socket sockets is too large. After the terminal is inserted, the side bulge structure cannot form an effective damping fit with the inner wall of the socket, resulting in a gap between the terminal and the socket. When the equipment is subjected to vibration or external force, it is easy to loosen or even fall off, which not only interrupts the circuit connection and affects the operation of the equipment, but may also cause malfunctions or safety hazards due to contact arcing; On the other hand, the inner diameter of some socket sockets is too small, smaller than the overall size of the terminal including the bulge structure. The terminal cannot be inserted smoothly, and forced insertion will cause deformation and damage to the bulge structure, cracking of the socket socket, shortening its service life, and even causing hand injuries to the operator.

[0005] Therefore, it is necessary to propose an improved technical solution to address the above problems. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A banana-shaped terminal that adapts to different sized connectors by increasing its deformability includes a terminal body bent into a cylindrical structure by stamping. The rear end of the terminal body is formed with a wire fixing section. Multiple through-slots are arranged around the side of the terminal body. An outwardly bulging bulge structure is formed between two adjacent slots on the terminal body. Multiple bent pieces are formed at the front end of the terminal body. The multiple bent pieces are bent inward to make the front end of the terminal body have a spherical structure, and there is a gap between two adjacent bent pieces. At least one of the slots is extended, and the extended slot extends to connect the gap between two adjacent bent pieces.

[0008] Preferably, the terminal body bent into a cylindrical structure has a butt joint formed after bending and mating, and the extended long groove is a segment, which corresponds to the butt joint line.

[0009] Preferably, the long groove is provided with four equally spaced sections, and the bent sheet is formed with three equally spaced pieces.

[0010] Preferably, both the front and rear ends of the extended groove are extended, and the width of the extended portion is less than or equal to the width of the groove.

[0011] Preferably, the terminal body has fold lines at both the front and rear positions between two adjacent long slots, and the portion of the terminal body between two adjacent long slots bulges out through the two fold lines to form a bulge structure.

[0012] Preferably, the terminal body has a closed-loop embossed line between two adjacent long slots, and the portion of the terminal body between two adjacent long slots is bulged up by the embossed line to form a bulge structure.

[0013] Preferably, an inwardly recessed annular reinforcing groove is formed around the rear section of the terminal body.

[0014] Preferably, the wire fixing section is formed in the lower half of the rear end of the terminal body, and a through hole is provided at the lower part of the rear section of the terminal body.

[0015] Compared with the prior art, the beneficial effects of this utility model are: By combining the extension groove with the bending tabs and bulging structure, the overall deformability of the terminal is significantly improved. It can adapt to sockets with different size deviations without replacing the terminal, solving the problem of looseness or inability to insert due to differences in the size of the socket of traditional terminals. This significantly improves the versatility and applicable scenarios of the terminal. In addition, the spherical structure formed by the three bending tabs at the front end not only retains the advantage of easy insertion of traditional banana terminals, but also enhances the flexibility of deformation through the design of gaps and extension grooves. During insertion, it can adaptively adjust its shape according to the size of the socket, avoiding damage to the terminal or socket caused by forced insertion and removal, extending the product's service life, and reducing the risk of hand injuries to operators.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of one embodiment of the present utility model; Figure 2 This is another structural schematic diagram of Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of a structure according to Embodiment 2 of this utility model; Figure 4 This is another structural schematic diagram of Embodiment 2 of this utility model.

[0019] The reference numerals and names in the figure are as follows: Terminal body 10, wire fixing section 11, bulge structure 12, bending piece 13, butt wire 14, folded line 15, embossed line 16, annular reinforcing groove 17, through hole 18, long groove 20. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please see Figure 1-4 In this embodiment of the present invention, a banana-shaped terminal that adapts to different sized connectors by increasing its deformability includes a terminal body 10 bent into a cylindrical structure by stamping. The rear end of the terminal body 10 is formed with a wire fixing section 11. Four through-slots 20 are arranged around the side of the terminal body 10. An outwardly bulging bulge structure 12 is formed on the terminal body 10 between two adjacent long slots 20. The front end of the terminal body 10 is formed with three bent pieces 13. The three bent pieces 13 are bent inward to make the front end of the terminal body 10 have a spherical structure, and there is a gap between two adjacent bent pieces 13. At least one of the long slots 20 is extended, and the extended long slot 20 extends to connect the gap between two adjacent bent pieces 13.

[0022] When a socket of a larger size is inserted, the central bulge structure 12 can moderately retract inward within the deformation space of the long slot 20. At the same time, the bent piece 13 of the front spherical structure can slightly open outward due to the synergistic effect of the gap and the extended slot 20 to increase the contact area and ensure a stable fit with the inner wall of the large-sized socket. When a socket of a smaller size is inserted, the gap fit between the extended slot 20 and the adjacent bent piece 13 provides the banana terminal with deformation allowance, allowing the bent piece 13 to retract further inward. The central bulge structure 12 can also achieve a certain degree of inward shrinkage through the spatial compression of the long slot 20, avoiding structural damage caused by forced insertion. Finally, through the synergistic deformation of each area, flexible adaptation to sockets of different sizes is achieved, while maintaining stable physical contact and electrical connection.

[0023] Therefore, through the combined design of the extension groove 20, bending piece 13, and bulge structure 12, the overall deformability of the terminal is greatly improved. It can adapt to sockets with different size deviations without replacing the terminal, solving the problem of looseness or inability to insert due to differences in the size of the socket of traditional terminals. This significantly improves the versatility and applicable scenarios of the terminal. In addition, the spherical structure formed by the three bending pieces 13 at the front end not only retains the advantage of easy insertion of traditional banana terminals, but also enhances the flexibility of deformation through the design of the gap and extension groove 20. During the insertion process, the shape can be adaptively adjusted according to the size of the socket, avoiding damage to the terminal or socket caused by forced insertion and removal, extending the service life of the product, and reducing the risk of hand injuries to operators.

[0024] The terminal body 10, bent into a cylindrical structure, has a butt joint 14 formed by bending and joining the two sides of the sheet. The extended groove 20 is a segment that corresponds to the butt joint 14, so that the extended groove 20 can cooperate with the bending piece 13 to improve the overall deformation of the banana terminal and also compensate for the surface integrity defects caused by the butt joint 14.

[0025] An inwardly recessed annular reinforcing groove 17 is formed around the rear section of the terminal body 10, which can significantly improve the rigidity of the rear structure of the body and prevent the terminal from deforming at the rear end during wire fixing or insertion and removal, thus ensuring the overall structural stability. The wire fixing section 11 is formed in the lower half of the rear end of the terminal body 10, and a through hole 18 is provided at the lower part of the rear section of the terminal body 10. This facilitates precise positioning and installation of the wire, and the main body of the fixing terminal can be injection molded in the mold by means of the through hole 18 and positioning pins, without affecting the overall cylindrical structure of the terminal and the insertion and removal operation. While improving adaptability and structural durability, it also enhances the reliability of the wire connection.

[0026] Based on the above technical solution, in order to further illustrate the beneficial effects of this technical solution, it is further proposed that the front and rear ends of the extended slot 20 are both extended, and the width of the extended portion is less than or equal to the width of the slot 20. The terminal body 10 has fold lines 15 formed at both the front and rear positions between two adjacent slots 20, and the portion of the terminal body 10 located between two adjacent slots 20 bulges out through the two fold lines 15 to form a bulge structure 12.

[0027] Based on the above-mentioned further proposed technical solutions, this embodiment illustrates the cooperation relationship between the long groove 20, the bent piece 13, and the bulge structure 12 through two implementation methods: Implementation Method 1: like Figure 1-2 As shown, the terminal body 10 has fold lines 15 at the front and rear positions between two adjacent long slots 20. The part of the terminal body 10 between the two adjacent long slots 20 bulges out through the two fold lines 15 to form a bulge structure 12. When inserted into the socket, this bulge will change the overall length of the terminal body 10 to a certain extent when it deforms. That is, after the bulge structure 12 is pressed against the inner wall of the socket hole, the curvature of the bulge structure 12 will decrease. This decreasing trend is achieved by increasing the length of the terminal body 10, thereby alleviating the stress fatigue of the material caused by the deformation of the bulge structure 12 to a certain extent. Based on this, the bulge structure 12, which has better deformation characteristics, further limits the extension of the front and rear ends of the extended slot 20, and the width of the extended part is less than the width of the long slot 20. This design retains the core function of the original extended slot 20 in improving the deformation, and enhances the structural strength of the long slot 20 area through the narrow extension section, avoiding cracking of the terminal body 10 due to excessive deformation. At the same time, it concentrates the deformation on the key area of ​​the fitting socket, improving the fitting accuracy.

[0028] Implementation Method Two: like Figure 3-4As shown, the terminal body 10 has a closed-loop embossed line 16 between two adjacent long slots 20. The portion of the terminal body 10 between the two adjacent long slots 20 bulges out through the embossed line 16 to form a bulge structure 12. On the one hand, the closed-loop shape precisely defines the forming range of the bulge structure 12, ensuring the consistency of the bulge's protrusion height and shape, keeping the damping effect of different terminals stable, and improving the quality of product batches. On the other hand, compared with the zigzag structure 15, the closed-loop embossed line 16 can form a structure that can generate elastic deformation between the edge of the area between the two adjacent long slots 20 on the terminal body 10 and the embossed line 16. When this deformation structure generates deformation, it is more likely to... The inward contraction occurs without increasing the length of the terminal body 10, and it is used in some sockets where length is required. Compared with the first method, the deformation will increase the stress fatigue of the material. Therefore, the front and rear ends of the extended slot 20 are further extended, and the width of the extended part is equal to the width of the slot 20. Compared with the narrow extension section, this design further expands the deformation space of the terminal body 10, making the deformation of the middle bulge area and the front bending piece 13 more flexible. It can more easily adapt to sockets with a larger size deviation range, while avoiding the stress concentration problem that may exist in the narrow extension section and reducing structural fatigue damage after long-term use.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A banana-shaped terminal that adapts to different sized sockets by increasing its deformability, comprising a terminal body (10) bent into a cylindrical structure by stamping, wherein a wire fixing section (11) is formed at the rear end of the terminal body (10), characterized in that, The side of the terminal body (10) is provided with a number of through-slots (20), and the terminal body (10) has an outwardly bulging bulge structure (12) between two adjacent long slots (20); the front end of the terminal body (10) is formed with a number of bent pieces (13), the multiple bent pieces (13) are bent inward so that the front end of the terminal body (10) has a spherical structure, and there is a gap between two adjacent bent pieces (13); at least one of the long slots (20) is extended, and the extended long slot (20) extends to connect the gap between two adjacent bent pieces (13).

2. The banana terminal according to claim 1, which adapts to different sized sockets by increasing its deformability, is characterized in that... The terminal body (10) bent into a cylindrical structure has a butt wire (14) formed by bending and mating. The extended long groove (20) is a segment, and the extended long groove (20) corresponds to the butt wire (14).

3. A banana terminal that adapts to different sized sockets by increasing its deformability, as described in claim 1, is characterized in that... The long groove (20) is provided with four equally spaced sections, and the bent piece (13) is formed with three equally spaced pieces.

4. A banana terminal that adapts to different sized sockets by increasing its deformability, as described in claim 1, is characterized in that... The front and rear ends of the extended slot (20) are both extended, and the width of the extended portion is less than or equal to the width of the slot (20).

5. A banana terminal that adapts to different sized sockets by improving deformability according to any one of claims 1-4, characterized in that, The terminal body (10) has fold lines (15) at the front and rear positions between the two adjacent long slots (20). The part of the terminal body (10) between the two adjacent long slots (20) bulges up through the two fold lines (15) to form a bulge structure (12).

6. A banana terminal that adapts to different sized sockets by improving deformability according to any one of claims 1-4, characterized in that, The terminal body (10) has a closed loop of embossed lines (16) between two adjacent long slots (20), and the part of the terminal body (10) between two adjacent long slots (20) bulges out through the embossed lines (16) to form a bulge structure (12).

7. A banana terminal that adapts to different sized sockets by increasing its deformability, as described in claim 1, is characterized in that... An inwardly recessed annular reinforcing groove (17) is formed around the rear section of the terminal body (10).

8. A banana terminal that adapts to different sized sockets by increasing its deformability according to claim 1, characterized in that, The wire fixing section (11) is formed in the lower half of the rear end of the terminal body (10), and a through hole (18) is provided at the lower part of the rear section of the terminal body (10).

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