Terminal capable of preventing rotation

Abstract

The utility model discloses an anti-rotation terminal, which comprises a terminal main body, one end of the terminal main body is provided with a wire pressing pin, the other end of the terminal main body is provided with a connecting cylinder which is in butt joint with a contact pin, the connecting cylinder comprises a front connecting cylinder and a rear connecting cylinder, and the boundary dimension of the front connecting cylinder is smaller than that of the rear connecting cylinder. The connecting cylinder is divided into the front connecting cylinder and the rear connecting cylinder, and the appearance size of the front connecting cylinder is smaller than that of the rear connecting cylinder, so that the terminal can be effectively prevented from rotating in the connector. The wider rear connecting cylinder can be tightly matched with the terminal hole to limit the rotation of the terminal; and the narrower front connecting cylinder is in good contact with the contact pin, so that the reliability of electric connection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of terminals, in particular to a terminal which is prevented from rotating. Background Art

[0002] In the field of electrical connectors, ensuring good electrical contact is a key factor in ensuring proper function of equipment. To achieve a reliable electrical connection, the terminal barrel is typically required to possess a certain degree of elasticity to tightly enclose the inserted pin, providing stable physical and electrical contact. To this end, the inner diameter of the terminal barrel is often designed to be slightly smaller than the outer diameter of the mating pin. This allows the barrel to deform slightly when the pin is inserted, creating a tight mechanical and electrical contact.

[0003] However, although such a design is conducive to improving the reliability of initial contact, it also brings some potential problems. First, since the outer dimensions of the connecting cylinder change after being expanded by the pin, if the gap between the connecting cylinder and the terminal hole in the connector body is not sufficient to accommodate this deformation, it may cause interference between the connecting cylinder and the terminal hole, affecting assembly or causing structural damage. In order to solve this problem, the traditional approach is usually to design the terminal holes on the connector to be relatively large to reserve enough space to accommodate the dimensional changes after the connecting cylinder expands. However, this brings new technical problems: the larger terminal hole makes it easy for the terminal to rotate freely inside it, especially under the action of external forces, such as vibration, impact, etc. Once the terminal rotates, the originally aligned opening position of the connecting cylinder will deviate from the predetermined position, resulting in the subsequent pin being unable to be smoothly inserted, thereby affecting the assembly efficiency of the entire connection system and the reliability of long-term use.

[0004] Therefore, how to avoid the above-mentioned problems while maintaining good contact performance has become a technical challenge that needs to be solved urgently. In response to the shortcomings of the existing technology, this application proposes a terminal that prevents rotation. Through specific design improvements, it effectively prevents the terminal from rotating within the connector while ensuring high efficiency and durability during the connection process. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides a terminal that can prevent rotation.

[0006] The technical solution adopted by the present utility model is: a terminal that prevents rotation, including a terminal body, one end of the terminal body is provided with a press-wire foot, and the other end is provided with a connecting cylinder for docking with the pin, the connecting cylinder includes a front connecting cylinder and a rear connecting cylinder, and the outer dimensions of the front connecting cylinder are smaller than the outer dimensions of the rear connecting cylinder.

[0007] Furthermore, the width of the front connecting tube is smaller than the width of the rear connecting tube.

[0008] Furthermore, the front connecting tube and the rear connecting tube are separated by a slot.

[0009] Furthermore, the front connecting tube and the rear connecting tube each include a bottom wall, a left side wall, a right side wall and an upper wall, and the left side wall and the right side wall each include a vertical portion and an outwardly inclined portion, and a circular arc transition is used between the inclined portion and the vertical portion and the bottom wall.

[0010] Furthermore, the inner sides of the left and right walls of the front connecting tube have convex points.

[0011] Furthermore, the bottom wall has a downwardly tilted hook step.

[0012] Furthermore, the aperture width of the front connecting tube is smaller than the aperture width of the rear connecting tube.

[0013] The beneficial effects of the utility model are:

[0014] 1. Preventing the terminal from rotating within the terminal hole: This application divides the existing connecting barrel into a front connecting barrel and a rear connecting barrel. The outer dimensions of the front connecting barrel are set to be smaller than those of the rear connecting barrel. The wider rear connecting barrel is tightly connected to the terminal hole, which can effectively prevent the terminal from rotating within the terminal hole. The narrower front connecting barrel is spaced apart from the terminal hole for connection with the pin. The narrower front connecting barrel reserves space for expansion of the front connecting barrel after the pin is inserted. This way, even under external vibration or impact, the terminal position can be kept stable, ensuring that the opening of the connecting barrel is always aligned with the correct position, facilitating smooth insertion of the pin.

[0015] 2. Optimize electrical connection quality: The clearance between the front connector barrel and the pin ensures appropriate contact pressure, neither too tight nor too loose, which promotes a stable electrical contact interface. In addition, by avoiding improper positioning caused by rotation, the electrical transmission performance of the entire connection system is further improved.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a front view schematic diagram of the present utility model.

[0019] Figure 3 It is a structural diagram of terminals and connectors.

[0020] Figure 4 for Figure 3 Schematic diagram of the cross section of AA.

[0021] Figure 5 for Figure 3 Schematic diagram of the cross section of BB.

[0022] Figure 1-5 Middle: 1. Terminal body; 2. Pressing foot; 3. Front connecting tube; 4. Rear connecting tube; 5. Slot; 6. Bottom wall; 7. Left wall; 8. Right wall; 9. Upper wall; 10. Vertical part; 11. Inclined part; 12. Arc transition; 13. Bump; 14. Hook step; 15. Limit strip. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] The utility model provides a terminal which can prevent rotation.

[0026] In this embodiment, referring to Figure 1-5 The terminal that prevents rotation includes a terminal body 1, one end of which is provided with a press-wire foot 2, and the other end is provided with a connecting tube for docking with the pin, the connecting tube includes a front connecting tube 3 and a rear connecting tube 4, and the outer dimensions of the front connecting tube are smaller than the outer dimensions of the rear connecting tube.

[0027] In this technical solution, by dividing the connecting barrel into a front barrel and a rear barrel, and setting the front barrel's overall dimensions to be smaller than the rear barrel, this design effectively prevents the terminal from rotating within the connector. The wider rear barrel fits tightly into the terminal hole, limiting terminal rotation; while the narrower front barrel forms good contact with the pin, ensuring a reliable electrical connection.

[0028] More specifically: Figure 1 and 2As shown, the outer dimensions of the front connecting tube are smaller than the outer dimensions of the rear connecting tube. The outer dimensions can be that the width of the front connecting tube is smaller than the width of the rear connecting tube, or the height of the front connecting tube is set to be smaller than the height of the rear connecting tube. This application takes the width of the front connecting tube being smaller than the width of the rear connecting tube as a specific explanation. This application divides the original connecting tube into a front connecting tube and a rear connecting tube, and at the same time sets the outer dimensions of the front connecting tube to be smaller than the outer dimensions of the rear connecting tube, that is, the wider rear connecting tube is tightly connected to the terminal hole, which can effectively prevent the terminal from rotating in the terminal hole, while the narrower front connecting tube is fitted with a gap in the terminal hole for connection with the pin, and the narrower front connecting tube reserves a gap for the expansion of the front connecting tube after the pin is inserted. In this way, even in the case of external vibration or impact, the position of the terminal can be kept stable, ensuring that the opening of the connecting tube is always aligned with the correct position, facilitating the smooth insertion of the pin.

[0029] Similarly, those skilled in the art may also set the height of the front connecting tube to be smaller than the width of the rear connecting tube, which can also play the same role and achieve the same technical effect.

[0030] Specifically, the front connecting tube and the rear connecting tube are separated by a slot 5 .

[0031] By separating the front connecting cylinder and the rear connecting cylinder through the slot 5, the overall elasticity of the connecting cylinder can be increased to a certain extent, so that the connecting cylinder can better adapt to pins of different diameters or shapes, while helping to reduce the force required for assembly and reduce the requirements for connector materials.

[0032] Specifically, the front connecting tube and the rear connecting tube each include a bottom wall 6, a left side wall 7, a right side wall 8 and an upper wall 9. The left side wall and the right side wall each include a vertical portion 10 and an outwardly inclined portion 11. A circular arc transition 12 is used between the inclined portion 11 and the vertical portion 10 and the bottom wall.

[0033] The front connecting tube and the rear connecting tube are cylindrical structures as a whole, and the four walls are divided into bottom wall, left wall, right wall and upper wall. The arc transition design reduces stress concentration points and improves the durability of the overall structure.

[0034] Specifically, the inner sides of the left and right walls of the front connecting tube are provided with protrusions 13 .

[0035] Providing a protrusion 13 on the inner side of the front connecting tube can increase the friction between the pin and the connecting tube, further enhance the stability of the connection, prevent the pin from accidentally falling out, and improve the stability and reliability of the electrical connection.

[0036] Specifically, the bottom wall has a hook step 14 that tilts downward.

[0037] like Figure 4As shown, the hook step cooperates with the hook opening on the connector to connect the terminal to the connector body, preventing the terminal from falling off from the connector when subjected to external force, thereby increasing the safety and reliability of the overall structure.

[0038] Specifically, both sides of the opening of the front connecting tube are provided with limiting strips 15, and the limiting strips are formed by extending downwards from the vertical part of the front connecting tube.

[0039] like Figure 5 As shown, the alignment step at the connector opening is aligned and snapped into place between the limiting strips on both sides of the opening. This structure can limit the position between the terminal and the connector, making it easier to align and assemble the terminal.

[0040] Specifically, the aperture width of the front connecting tube is smaller than the aperture width of the rear connecting tube.

[0041] The design that the aperture width of the front connecting tube is smaller than that of the rear connecting tube ensures sufficient contact pressure between the pin and the connecting tube, forming a stable electrical connection interface.

[0042] Technical personnel please note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A terminal that prevents rotation, comprising a terminal body, one end of which is provided with a presser foot, and the other end of which is provided with a connecting cylinder for docking with a pin, characterized in that: The connecting tube includes a front connecting tube and a rear connecting tube, and the outer dimensions of the front connecting tube are smaller than those of the rear connecting tube.

2. The terminal for preventing rotation according to claim 1, wherein: The width of the front connecting tube is smaller than the width of the rear connecting tube.

3. The terminal for preventing rotation according to claim 1, wherein: The front connecting tube and the rear connecting tube are separated by a slot.

4. The terminal for preventing rotation according to claim 1, wherein: The front connecting tube and the rear connecting tube both include a bottom wall, a left side wall, a right side wall and an upper wall. The left side wall and the right side wall both include a vertical portion and an outwardly inclined portion. Arc transitions are used between the inclined portion, the vertical portion and the bottom wall.

5. The terminal for preventing rotation according to claim 4, characterized in that: The inner sides of the left side wall and the right side wall of the front connecting tube are provided with convex points.

6. The terminal for preventing rotation according to claim 4, characterized in that: The bottom wall is provided with a hooking step tilted downward.

7. The terminal for preventing rotation according to claim 4, characterized in that: The aperture width of the front connecting tube is smaller than the aperture width of the rear connecting tube.

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