CN201038406Y - Terminal Structure of Power Connector - Google Patents

Abstract

The utility model relates to a terminal structure of a power connector, a female terminal for electrically plugging a male terminal, which comprises a body and an outer shell, wherein the body is provided with a positioning part which can be fixedly arranged in a preset insulating seat body, one side of the positioning part is provided with a welding part which can penetrate out of the outer side of the preset insulating seat body, the surface of a butt joint part which is far away from the other side of the welding part is covered with the outer shell, a limiting part at the side edge of the outer shell is embedded in a corresponding split groove of the butt joint part and forms an embedded clamp for fixing, so as to prevent the outer shell from generating axial rotation on the surface of a ring groove, the plugging part of the male terminal is plugged in an accommodating hole in the butt joint part of the female terminal by coaxial displacement, thus the butt joint part which is provided with the split groove and is designed in a tapered shape is extruded by the male terminal, the elastic deformation expands outwards, and the good covering effect of the outer shell can limit, the stability of the electrical connection is increased, and the purposes of reliable positioning, good electrical connection and good signal transmission effect are achieved.

Description

Terminal Structure of Power Connector

technical field

The utility model relates to a terminal structure of a power connector, especially a female terminal that can be electrically inserted into a male terminal. , and can be elastically deformed and expanded to the outside to be firmly clamped on the surface of the male terminal, thereby increasing the stability of the electrical connection, and achieving the goals of accurate positioning, good electrical connection and good signal transmission effect.

Background technique

According to the rapid development of today's computer technology era, the manufacture, production or use of many products in the new era are closely related to electronic technology, and more and more products must rely on the innovative methods and superb skills of electronic technology to achieve a more perfect state. Therefore, there will be many items around the living environment that are inseparable from electronic technology, and the advent of the technological era not only produces many electronic-related products in the surrounding life, but also many electronic-related products have more and more additional functions. Therefore, there are many connectors that can be connected to peripheral products on electronic products, such as power connectors, audio terminal connectors, USB connectors, RJ connectors, and memory card connectors. An important connection device for connecting electronic products with peripheral products.

Please refer to FIG. 8 , which is an existing side view sectional view. It can be clearly seen from the figure that the existing power connector is located between the first connector A and the second connector B. The insulating bases A1, B1 The first contact terminal A2 and the second contact terminal B2 are respectively pierced inside, and the first connector A is electrically connected to the second connector B for the insertion part A21 of the first contact terminal A2. Displaced in the same direction and electrically plugged into the joint portion B21 of the second contact terminal B2 to form a positioning, but the power connector has multiple first contact terminals with different diameters under long-term repeated use. A2 and the second contact terminal B2 are prone to stress concentration at the connecting surfaces with different diameters, which will cause the deflection or bending deformation of each terminal. However, if the first contact terminal A2 and the second contact terminal There is a slight deviation or bending deformation between B2, which will cause the lack of alignment and inaccurate positioning. However, when the first contact terminal A2 is still forced to apply pre-force for insertion, it will cause the second contact terminal. B2 is forced to expand and deform outwards, and in severe cases, cracks or breaks may occur, which in turn cause failure or interruption of its electrical connection.

Moreover, in order to solve the various deficiencies of the above-mentioned existing power connectors, some operators have developed such a connector that can effectively prevent terminals from being forced due to poor alignment and inaccurate positioning during insertion. For new utility models with cracks or breaks, please refer to Figure 9, which is another existing three-dimensional exploded view. It can be clearly seen from the figure that the existing power connector has a jack formed in the docking terminal C C1, and the outer surface of the socket C1 is recessed with a ring-shaped accommodation groove C2, and the surface of the accommodation groove C2 is provided with a hollow hole C3, and the surface of the accommodation groove C2 is covered with a C-shaped ring buckle D, except In the aforementioned power connector, the hole diameter of the socket C1 in the butt terminal C is larger than the outer diameter of the insertion part E1 of the plug terminal E, and a certain gap will be generated between the butt terminal C and the plug terminal E during insertion. Therefore, good electrical contact cannot be formed, and it is necessary to rely on the clamping force of the C-shaped ring buckle D to make the butt terminal C with the hollow hole C3 elastically deform and shrink under force, so that the plug-in terminal E can be firmly clamped It is held in the socket C1 of the docking terminal C and forms an electrical conduction state by frictional contact. However, if the C-shaped buckle D is not provided during use, it will cause the docking terminal C and the plug terminal E The electrical connection between them is inaccurate.

The C-shaped ring buckle D does not have any structure with a locking effect, and the surface of the C-shaped ring buckle D is a smooth contact surface in the shape of an arc, which only uses the friction between the inner wall surface and the accommodating groove C2 to achieve For the purpose of tight clamping, when the plug-in terminal E and the butt terminal C are plugged in, it will cause the C-shaped ring D to easily rotate axially on the accommodating groove C2, and the side of the C-shaped ring D The opening D1 is opposite to the hollow hole C3 of the docking terminal C, so that the C-shaped buckle D will be deformed and expanded from the docking terminal C, and will be squeezed and deformed from the opening D1 to the outside, so that the clamping effect will be greatly reduced. It will also cause the insertion terminal E to loosen or be separated from the docking terminal C, thereby increasing the instability of electrical transmission.

To sum up, the various deficiencies of the existing power connectors are the directions that relevant manufacturers engaged in this industry want to research and improve urgently, and it is necessary for the relevant industry to make further improvement and redesign.

In view of the above-mentioned problems and defects, the designer of this utility model collected relevant data, evaluated and considered in many ways, and used years of research and development experience in this industry to design this power connector through continuous trial and modification. A new type of terminal structure was born.

Contents of the invention

The main purpose of this utility model is to provide a terminal structure of a power connector, which can achieve good electrical connection and signal transmission effect, prevent the outer shell from rotating axially on the surface of the ring groove, and further prevent the outer shell from loosening or Separated from the body, and achieve the purpose of stable and definite positioning.

In order to achieve the above purpose, the technical solution adopted by the utility model is to provide a terminal structure of a power connector, the male terminal is aligned and displaced in the same axial direction, and plugged into the docking part of the female terminal body, That is to say, the front edge of the insertion part of the male terminal is along the inner wall surface of the guide slope in front of the mating part of the female terminal, so that it can be embedded in the accommodating hole, so that the butting part with a cutaway and tapered shape is inserted by the male terminal Squeeze, elastically deform and expand outward to firmly clamp on the surface of the male terminal and form a good electrical conduction state, and because of the good covering effect of the outer shell, it can limit the excessive outward expansion of the butt joint , and can prevent the butt joint from opening outward due to the extrusion force, thereby causing cracks or breaks, and the male terminal can be plugged into the accommodation hole inside the body to form a stable pinch positioning.

The open interlocking space formed inside the outer casing is embedded in the ring groove of the docking part along the inner wall surface of the opening on one side, and is covered on the ring groove due to the elastic restoring force to form a Inset card fastening.

The utility model has the advantages of good connection and good signal transmission effect, stable and accurate positioning.

Description of drawings

Fig. 1 is the three-dimensional exterior view of the utility model;

Fig. 2 is a three-dimensional exploded view of the utility model;

Fig. 3 is a three-dimensional appearance view of another viewing angle of the utility model;

Fig. 4 is a side view sectional view before the utility model is assembled;

Fig. 5 is a side view sectional view of the utility model assembled;

Fig. 6 is the schematic diagram before the utility model is used;

Fig. 7 is the schematic diagram after the utility model is used;

Fig. 8 is an existing side view sectional view;

Fig. 9 is another conventional perspective exploded view.

Explanation of reference signs: 1-female terminal; 11-body; 1152-resisting surface; 111-positioning part; 116-cut groove; 112-welding part; 12-outer shell; ; 114-accommodating hole; 122-opening; 1141-guiding inclined surface; 123-limiting part; 115-ring groove; 123 1-cutting groove; 21-socket part; 3-insulation seat body; 31-catch hole; A-first connector; A1-insulation seat body; A21-socket part; A2-first contact terminal; B-second connector ;B1-insulation base; B21-junction; B2-second contact terminal; C-butt terminal; C1-jack; C3-hollow hole; C2-accommodating groove; - plug terminal; E1 - plug part.

Detailed ways

In order to achieve the above-mentioned purpose and structure, the technical means and purpose of the utility model, the steps and functions of the preferred embodiment of the utility model are described in detail as follows by drawing, so as to fully understand.

Please refer to Fig. 1 to Fig. 3, which are respectively a three-dimensional appearance view, a three-dimensional exploded view, and a three-dimensional appearance view of another viewing angle of the present utility model. It can be clearly seen from the figures that the present utility model includes The female terminal 1 composed of the body 11 and the outer shell 12 is described in detail as follows for the main structural features of the present invention; among them:

The body 11 is provided with a positioning part 111 that can be fixed in the preset insulating seat body 3, and a welding part 112 that can pass through the outside of the preset insulating seat body 3 is provided on one side of the positioning part 111, and The other side away from the welding portion 112 is provided with a tapered docking portion 113, and an accommodating hole 114 is formed in the docking portion 113, and a concave ring groove 115 is provided on the surface of the docking portion 113, and The ring groove 115 is cut outward from the positioning portion 111 to have at least one or more split grooves 116 for the movable and pivotal connection of the docking portion 113 .

The outer casing 12 is generally designed in a ring shape, and an interlocking space 121 that can cover the ring groove 115 on the surface of the body 11 is formed inside it, and an opening 122 is provided on one side of the interlocking space 121, and an opening 122 is provided on the outer shell. The side of the body 12 is provided with a limiting portion 123 opposite to the cutout 116 on the surface of the body 11, and the combination of the above-mentioned components completes the main aspect of the present invention.

The accommodating hole 114 can be further formed with a guide inclined surface 1141 at the outer insertion port; an inclined surface 1151 can be further formed at the junction of the positioning portion 111 with the ring groove 115, and a resisting surface can be formed on the other side away from the inclined surface 1151. The holding surface 1152 ; moreover, the limiting portion 123 can be further provided with at least one set of opposite split grooves 1231 , and buckle protrusions 1232 are bent downward between the opposite split grooves 1231 .

Please refer to Fig. 4 to Fig. 7, which are respectively the side view section view before assembly, the side view section view after assembly, the schematic diagram before use and the schematic diagram after use of the utility model, which can be clearly seen from the figures It can be seen that when assembling the above-mentioned components, the body 11 of the female terminal 1 is fixed in the preset insulating seat body 3 first, even if the positioning part 111 of the body 11 is embedded in the locking hole of the preset insulating seat body 3 31 to form a positioning, and the welding part 112 on one side of the positioning part 111 passes through the outside of the preset insulating seat body 3, so as to be welded on the preset circuit board (not shown in the figure) and form an electrical connection. Continue The surface of the butt joint 113 on the other side of the main body 11 relative to the welding part 112 is covered with the outer shell 12, and the stopper 123 on the side of the outer shell 12 is a sectional groove 116 opposite to the butt joint 113, so that the stopper can be 123 is embedded in the cutaway groove 116 to form a snap-in fixation. Continue to insert the insertion part 21 of the male terminal 2 into the accommodating hole 114 inside the body 11 with a coaxial displacement, so that the cutaway groove 116 is gradually formed. The butt joint 113 of the contracted design can be elastically deformed and expanded to the outside by the insertion and extrusion of the male terminal 2, so as to be firmly clamped on the surface of the male terminal 2 and form a good electrical conduction state, that is, to complete the utility model Overall assembly.

The above-mentioned outer shell 12 is embedded in the ring groove 115 on the surface of the butt joint 113 by the opening 122 on one side thereof in a vertical direction displacement, and the limiting portion 123 on the side of the outer shell 12 is a joint along one side of the ring groove 115 The inclined surface 1151 is embedded in the ring groove 115 with the aid of axial sliding displacement, and makes the outer shell 12 far away from the side wall surface on the other side of the stopper 123, and then resists on the other side of the ring groove 115 relative to the inclined surface 1151 At the same time, the buckle protrusion 1232 between the opposing groove 1231 of the stopper 123 is buckled on the butt joint 113 and communicated with the slot 116 of the accommodating hole 114 to form a positioning position. , the outer housing 12 will be squeezed and elastically deformed toward the outer side of the opening 122, so that the open interlocking space 121 formed inside the outer housing 12 is embedded along the inner wall of the opening 122 on one side. In the ring groove 115 of the docking part 113, it is covered on the ring groove 115 due to the elastic restoring force and forms an embedded engagement to prevent the outer shell 12 from rotating axially on the surface of the ring groove 115, thereby avoiding the outer shell 12 loosen or break away from the outside of the body 11, and achieve the purpose of firm and sure positioning.

When the above-mentioned components are in use, the male terminal 2 is first aligned and displaced in the same axial direction, and inserted into the butt joint portion 113 of the body 11 of the female terminal 1, that is, the front edge of the insertion portion 21 of the male terminal 2 is Along the guide slope 1141 at the outer insertion port of the docking part 113, it is embedded in the accommodating hole 114, so that the tapered docking part 113 with the sectional groove 116 is inserted and squeezed by the male terminal 2, and moves toward the The outer side elastically deforms and expands to firmly clamp on the surface of the male terminal 2 and form a good electrical conduction state, and due to the good covering effect of the outer shell 12, it can limit the excessive expansion of the butt joint 113 outwards, and It can avoid the situation that the butt joint 113 is turned outward due to the extrusion force, and then cracks or breaks occur, so that the male terminal 2 can be plugged into the accommodating hole 114 inside the body 11 of the female terminal 1, and forms a stable Clamping and positioning to increase the stability of the electrical connection, thereby achieving the purpose of good electrical connection and good signal transmission effect.

Therefore, the terminal structure of the power connector of the present invention is the key to improving the prior art:

(1) The insertion part 21 of the male terminal 2 is inserted into the accommodating hole 114 inside the body 11 of the female terminal 1 by coaxial displacement, so that the butt joint part 113 with a sectional groove 116 and a tapered design is in the Inserted and squeezed by the male terminal 2, it can be elastically deformed and expanded to the outside, so as to be firmly clamped on the surface of the male terminal 2 and form a good electrical conduction state. Position the male terminal 2 by pinching.

(2) The limiting portion 123 on the side of the outer casing 12 is a cutaway groove 116 opposite to the docking portion 113, and the limiting portion 123 can be embedded in the cutaway groove 116 to form an embedded clamp to prevent the outer casing 12 from Axial rotation occurs on the surface of the ring groove 115 , thereby preventing the outer casing 12 from loosening or detaching from the body 11 , and achieving the purpose of stable and accurate positioning.

(3) The outer casing 12 has a good covering effect, which can limit the excessive expansion of the butt joint 113 outwards, and can avoid the joint joint 113 from being turned outward due to the extrusion force, thereby causing cracks or fractures In this case, the male terminal 2 can be plugged into the housing hole 114 inside the main body 11 to form a stable clamping position to increase the stability of the electrical connection, thereby achieving good electrical connection and good signal transmission effect. Purpose.

Therefore, the utility model is mainly aimed at the terminal structure of the power connector, especially the female terminal 1 that can be electrically plugged with the male terminal 2. It is composed of a main body 11 and an outer shell 12. The surface of 113 is covered with the outer casing 12, even if the limiting part 123 on the side of the outer casing 12 is embedded in the corresponding sectional groove 116 of the docking part 113 and forms an embedded engagement to prevent the outer casing 12 from forming on the surface of the ring groove 115. Rotate axially, and continue to insert the insertion part 21 of the male terminal 2 into the accommodating hole 114 inside the docking part 113 with coaxial displacement, so that the docking part 113 with a sectional groove 116 and a tapered design is in the By the insertion and extrusion of the male terminal 2, it can be elastically deformed and expanded outward, and due to the good covering effect of the outer shell 12, it can limit the excessive expansion of the butt joint 113 outwards, so as to be firmly clamped on the surface of the male terminal 2 Therefore, the stability of the electrical connection can be increased, and the goals of accurate positioning, good electrical connection and good signal transmission can be achieved.

To sum up, the terminal structure of the above-mentioned power connector of this utility model can really achieve its function and purpose, so this utility model is a utility model with excellent practicability, and it actually meets the requirements for applying for a new patent, and the application is filed according to law. .

The above description is only a preferred embodiment of the present utility model, and cannot limit the patent scope of the present utility model with this. Therefore, the simple modification and equivalent structural changes of the content of the utility model specification and drawings are used. Still should likewise be included in the scope of the patent covered by the utility model.

Claims (6)

1. A terminal structure of a power connector, a female terminal for insertion of a male terminal, which includes a body and an outer shell, characterized in that: The body is provided with a positioning part fixed in the preset insulating seat, and on one side of the positioning part is provided a welding part passing through the outside of the preset insulating seat, and the other side away from the welding part is provided with a butt joint part, and the accommodating hole for plugging of the male terminal is formed in the butt joint part, and an annular groove is recessed on the surface of the butt joint part, and the ring groove is cut outward from the positioning part to provide at least one movement for the butt joint part articulated slots; The inside of the outer casing is formed with an interlocking space that covers the ring groove on the surface of the body, and an opening is opened on one side of the interlocking space, and a limiting part that is located on the surface of the main body is provided on the side of the outer casing. . 2 . The terminal structure of the power connector according to claim 1 , wherein the abutting portion of the body is designed to be tapered outwardly from the positioning portion. 3 . 3 . The terminal structure of the power connector according to claim 1 , wherein the accommodating hole of the main body is further formed with a guide inclined surface at the outer insertion opening. 4 . 4. The terminal structure of the power connector according to claim 1, characterized in that: the ring groove of the body is further formed with an inclined surface at the junction of the positioning part, and forms a resistance to the other side away from the inclined surface. noodle. 5 . The terminal structure of the power connector according to claim 1 , wherein the outer casing is designed in a ring shape corresponding to the butt joint. 6 . 6. The terminal structure of the power connector according to claim 1, characterized in that: the limiting part of the outer shell is further cut with at least one set of relative split grooves, and the gap between the relative split grooves is downward. Bends have snap tabs.

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