Clamping-piece-free injection molding binding post

Abstract

The clamping-free injection molding binding post comprises a binding post plastic seat and a dustproof cover, an installation structure is arranged on the upper surface of the binding post plastic seat, the installation structure comprises a first dissolving glue groove and a second dissolving glue groove, and the first dissolving glue groove and the second dissolving glue groove are formed in the upper surface of the binding post plastic seat. According to the clamping-piece-free injection molding binding post, the binding post plastic base, the fixing rubber ring and the binding post copper cylinder I are used in cooperation, a traditional integrated clamping piece injection molding structure is divided into the binding post plastic base, the fixing rubber ring and the binding post copper cylinder I, the whole product is fused together through ultrasonic riveting design, assembling is convenient and fast, cost and machining procedures are saved, and the clamping piece-free injection molding binding post is convenient to use. The service life is prolonged, the product is integrally designed to be attractive and cannot be disassembled, and safety and reliability during use are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of terminal posts, in particular to a card-free injection-molded terminal post. Background Art

[0002] The terminal is a component used for electrical connection. The existing card injection molding terminal products on the market use a card-encapsulated plastic injection molding integrated structure, which has many and complex processes, high processing and assembly costs, large flash burrs, and are easy to crush the copper column of the terminal, damage the electroplating layer, resulting in a short service life and an ugly appearance; secondly, the installation screws of the existing card injection molding terminal float on the surface of the plastic body of the terminal, the screws are easy to rust and are not beautiful, and the screw cap head will interfere with the push-in and pull-out of the dust cover, causing the dust cover to wear, and excessive torque on the screw will easily cause the plastic body of the terminal to rupture. For this reason, we designed a card-free injection molding terminal. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a card-free injection-molded terminal, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a card-free injection-molded terminal, comprising a terminal plastic seat and a dust cover, the upper surface of the terminal plastic seat is provided with a mounting structure, the mounting structure comprises a first welding glue groove and a second welding glue groove, the first welding glue groove and the second welding glue groove are arranged on the upper surface of the terminal plastic seat, a circular mounting groove is arranged in the middle of the terminal plastic seat, and a flat portion is arranged on both sides of the inner wall of the circular mounting groove, the interior of the terminal plastic seat and the inner cavity of the circular mounting groove are riveted by ultrasonic riveting The process installs a terminal copper column, the side of which fits with the inner wall of a circular mounting groove, and straight edges are provided on both sides of the terminal copper column, which matches with a flat surface, and a fixed rubber ring is installed on the top of the terminal plastic seat and above the terminal copper column through an ultrasonic riveting process, and a dust cover mounting part is installed at the bottom of the fixed rubber ring, and welding ribs and welding ribs are installed at the bottom of the dust cover mounting part, and the welding ribs are sleeved into the inner cavity of the welding rubber groove, and the welding ribs are sleeved into the inner cavity of the welding rubber groove.

[0005] Preferably, the dust cover is installed on the outside of the dust cover mounting part, a guide groove is provided on the lower surface of the dust cover, and chamfered corners are designed on both sides of the opening of the guide groove. Limiting protrusions are provided inside the dust cover and on both sides of the inner cavity of the guide groove. A mounting circular groove is provided on the lower surface of the dust cover and the mounting circular groove is connected with the guide groove, and the dust cover mounting part is located in the inner cavity of the mounting circular groove.

[0006] Preferably, screw sinking installation holes are provided around the upper surface of the terminal plastic seat, and installation screws are installed in the inner cavity of the screw sinking installation holes.

[0007] The present invention provides a card-free injection-molded terminal, which has the following beneficial effects:

[0008] 1. The card-free injection-molded terminal, through the coordinated use of the terminal plastic seat, the fixing rubber ring and the terminal copper column, splits the traditional one-piece card injection structure into the terminal plastic seat, the fixing rubber ring and the terminal copper column. A straight edge is provided on the side of the terminal copper column, and a flat surface is provided inside the terminal plastic seat, and then a straight edge and a circular arc are combined to form a cross flat position. After the terminal copper column and the terminal plastic seat are ultrasonically riveted, the straight edge and the flat surface form a limit, so that The torque and pull-out force of the product far exceed the actual use standards, which improves the stability of product use; through the coordinated use of welding glue groove 1 and welding glue groove 2 with welding rib 1 and welding rib 2, welding rib 1 and welding rib 2 are made to enter the inner cavity of welding glue groove 1 and welding glue groove 2 respectively, which can effectively ensure a firm combination without overflowing glue. The entire product is fused together through ultrasonic riveting design, which is convenient and quick to assemble, saving costs and processing procedures, and extending service life. The product has an integrated design that is beautiful and will not be disassembled, ensuring safety and reliability during use.

[0009] 2. The card-free injection-molded terminal adopts the design of screw sunken mounting holes. When installing the mounting screws, it can not only ensure the firmness and beauty of the installation, but also prevent the cap head of the mounting screws from interfering with the pushing and pulling out of the dust cover, without causing wear on the surface of the dust cover, and effectively prevent the plastic seat of the terminal from cracking due to excessive torque of the screws, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of a product according to Embodiment 1 of the present invention;

[0011] Figure 2 This is a schematic diagram of the structural disassembly of a product according to Embodiment 1 of the present invention;

[0012] Figure 3 It is a structural schematic diagram of a plastic base of a terminal and a copper column of a terminal in the first embodiment of the present invention;

[0013] Figure 4 This is a schematic diagram of the structure of the plastic seat of the terminal in the first embodiment of the present invention;

[0014] Figure 5 This is a schematic diagram of the overall structure of the product of Embodiment 2 of the present invention;

[0015] Figure 6 This is a schematic diagram of the structural disassembly of the product of Example 2 of the present invention;

[0016] Figure 7 It is a structural schematic diagram of the plastic base of the terminal and the second copper pillar of the terminal in the second embodiment of the present invention;

[0017] Figure 8 This is a schematic diagram of the structure of the plastic seat of the terminal in the second embodiment of the present invention;

[0018] Fig. 9 It is a schematic diagram of the structure of the dust cover of the present invention;

[0019] Fig.10 It is a structural schematic diagram of the fixed rubber ring of the present invention;

[0020] Fig.11 It is a schematic diagram of the assembly process of the product of the present invention.

[0021] In the figure: 1. Plastic seat of terminal; 2. Screw sinking installation hole; 3. Welding glue groove one; 4. Welding glue groove two; 5. Terminal copper column one; 6. Straight edge one; 7. Mounting screw; 8. Fixing rubber ring; 9. Welding rib two; 10. Welding rib one; 11. Dust cover; 12. Dust cover installation part; 13. Installation circular groove; 14. Guide groove; 15. Limiting protrusion; 17. Plane part one; 18. Circular installation groove one; 22. Circular installation groove two; 23. Plane part two; 24. Terminal copper column two; 25. Straight edge two. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1: Reference Figure 1-Figure 4 , Figure 9-11The present invention provides a card-free injection-molded terminal, including a terminal plastic seat 1 and a dust cover 11. The upper surface of the terminal plastic seat 1 is provided with a mounting structure, and the mounting structure includes a welding glue groove 1 3 and a welding glue groove 2 4. The welding glue groove 1 3 and the welding glue groove 2 4 are arranged on the upper surface of the terminal plastic seat 1. A circular mounting groove 18 is arranged in the middle of the terminal plastic seat 1, and a flat portion 17 is arranged on both sides of the inner wall of the circular mounting groove 18. The interior of the terminal plastic seat 1 and the inner cavity of the circular mounting groove 18 are provided with a terminal copper column through an ultrasonic riveting process. The copper column body 5 of the terminal post is fitted with the inner wall of the circular mounting groove 18, and the copper column body 5 of the terminal post is provided with straight edge parts 6 on both sides, and the straight edge parts 6 are adapted to the flat part 17. The top of the terminal post plastic seat 1 and above the copper column body 5 of the terminal post is installed with a fixed rubber ring 8 through an ultrasonic riveting process, and the bottom of the fixed rubber ring 8 is installed with a dust cover mounting part 12, and the bottom of the dust cover mounting part 12 is installed with a welding rib 29 and a welding rib 10, and the welding rib 29 is sleeved to the inner cavity of the welding glue groove 24, and the welding rib 10 is sleeved to the inner cavity of the welding glue groove 3.

[0024] This product divides the traditional one-piece card injection molding structure into three parts, namely, the terminal post plastic seat 1, the fixed rubber ring 8, and the terminal post copper column 5. During assembly, a straight edge portion 6 is set on the side of the terminal post copper column 5, and a flat portion 17 is set inside the terminal post plastic seat 1, and then a cross flat position is formed by combining straight edges and arcs. After the terminal post copper column 5 and the terminal post plastic seat 1 are ultrasonically riveted, the straight edge portion 6 and the flat portion 17 form a limit, so that the product torque and pull-out force far exceed the actual use standard, thereby improving the stability of product use; through the coordinated use of the welding glue groove 13 and the welding glue groove 24 with the welding ribs 10 and the welding ribs 29, the welding ribs 10 and the welding ribs 29 enter the inner cavities of the welding glue groove 13 and the welding glue groove 24 respectively, which can effectively ensure a firm combination without overflowing glue.

[0025] The entire product is integrated together through ultrasonic riveting design, which makes assembly easy and quick, saves costs and processing procedures, and extends service life. The integrated design of the product is beautiful and will not be disassembled, ensuring safety and reliability during use.

[0026] The dust cover 11 is installed on the outside of the dust cover installation part 12. A guide groove 14 is provided on the lower surface of the dust cover 11. The opening of the guide groove 14 is chamfered on both sides. By chamfering and arc-designing the opening of the guide groove 14, a good guiding effect is achieved, which facilitates the pushing in and pulling out of the dust cover 11, makes the operation faster, and improves the user experience.

[0027] Limiting protrusions 15 are provided inside the dust cover 11 and on both sides of the inner cavity of the guide groove 14. A mounting circular groove 13 is opened on the lower surface of the dust cover 11 and the mounting circular groove 13 is connected to the guide groove 14. The dust cover mounting part 12 is located in the inner cavity of the mounting circular groove 13.

[0028] Screw sinking installation holes 2 are provided around the upper surface of the terminal plastic seat 1 , and installation screws 7 are installed in the inner cavity of the screw sinking installation hole 2 .

[0029] The design of the screw hole sunken mounting hole 2 can ensure the firmness and beauty of the installation when installing the mounting screw 7, while preventing the cap of the mounting screw 7 from interfering with the pushing and pulling out of the dust cover 11, and will not cause wear on the surface of the dust cover 11. It can also effectively prevent the plastic seat 1 of the terminal from cracking due to excessive torque of the screw, thereby improving stability.

[0030] Embodiment 2:

[0031] Reference Figure 5-Figure 11 The difference between the second embodiment and the first embodiment is that: a circular mounting groove 22 is provided in the middle of the terminal plastic seat 1 and two flat portions 23 are provided on both sides of the inner wall of the circular mounting groove 22; a terminal copper column 24 is installed inside the terminal plastic seat 1 and in the inner cavity of the circular mounting groove 22 through an ultrasonic riveting process; the side of the terminal copper column 24 is fitted with the inner wall of the circular mounting groove 22; two straight edge portions 25 are provided on both sides of the terminal copper column 24 and the straight edge portions 25 are adapted to the flat portion 23.

[0032] To sum up, when assembling the card-free injection-molded terminal, the terminal copper column body 5 is installed into the inside of the terminal plastic seat 1 by ultrasonic riveting process, and then the fixed rubber ring 8 and the dust cover mounting part 12 are sleeved onto the terminal copper column body 5 and the top of the terminal plastic seat 1, so that the welding rib 2 9 is sleeved into the inner cavity of the welding glue groove 2 4, and the welding rib 10 is sleeved into the inner cavity of the welding glue groove 3, and they are fused and fixed by ultrasonic riveting process, and then the opening of the guide groove 14 on the dust cover 11 is slid toward the dust cover mounting part 12, the dust cover mounting part 12 is squeezed and the limiting protrusion 15 is pushed open to enter the mounting circular groove 13 for fixation, and finally the mounting screw 7 is used to pass through the screw sinking mounting hole 2 for installation.

[0033] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0034] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0035] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A card-free injection-molded terminal, comprising a terminal plastic seat (1) and a dust cover (11), characterized in that: The upper surface of the terminal plastic seat (1) is provided with a mounting structure; The mounting structure comprises a first welding glue groove (3) and a second welding glue groove (4), wherein the first welding glue groove (3) and the second welding glue groove (4) are arranged on the upper surface of the terminal plastic seat (1); A circular mounting groove (18) is provided in the middle of the terminal plastic seat (1), and two sides of the inner wall of the circular mounting groove (18) are provided with a flat surface (17), and a terminal copper cylinder (5) is installed inside the terminal plastic seat (1) and in the inner cavity of the circular mounting groove (18) by ultrasonic riveting process; The side surface of the copper column body (5) of the terminal post is in contact with the inner wall of the circular mounting groove (18), and the two sides of the copper column body (5) of the terminal post are provided with a straight edge portion (6) and the straight edge portion (6) is adapted to the flat surface portion (17); A fixed rubber ring (8) is installed on the top of the terminal plastic seat (1) and above the terminal copper column body (5) through an ultrasonic riveting process, and a dust cover installation part (12) is installed at the bottom of the fixed rubber ring (8), and a welding rib (9) and a welding rib (10) are installed at the bottom of the dust cover installation part (12), and the welding rib (9) is sleeved into the inner cavity of the welding glue groove (4), and the welding rib (10) is sleeved into the inner cavity of the welding glue groove (3).

2. The card-free injection-molded terminal according to claim 1, characterized in that: The dust cover (11) is mounted on the outside of the dust cover mounting portion (12); a guide groove (14) is provided on the lower surface of the dust cover (11); both sides of the opening of the guide groove (14) are designed with rounded corners; limiting protrusions (15) are provided inside the dust cover (11) and on both sides of the inner cavity of the guide groove (14); a mounting circular groove (13) is provided on the lower surface of the dust cover (11); the mounting circular groove (13) is connected to the guide groove (14); and the dust cover mounting portion (12) is located in the inner cavity of the mounting circular groove (13).

3. The card-free injection-molded terminal according to claim 1, characterized in that: Screw sinking installation holes (2) are provided around the upper surface of the terminal plastic seat (1), and installation screws (7) are installed in the inner cavity of the screw sinking installation hole (2).

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