Electric connector

Abstract

The utility model discloses an electric connector. The electric connector comprises an insulating body; the front base part is arranged at the front end of the insulating body, and a protruding part is arranged on the surface of the front base part; the terminal group is arranged in the insulating body, the terminal group is provided with a plurality of terminals, each terminal is provided with a contact part, the front end of each contact part is thinned downwards and obliquely to form a first step part, the top surface of the front end of each first step part is thinned downwards and horizontally to form a first extension part, and the top surface of the front end of each first step part is provided with a second extension part. The first step part and the first extending part are exposed out of the surface of the front base part, the front end of the first extending part is thinned downwards and obliquely and bent to form a second step part, the protruding part is embedded in the second step part, the front end of the second step part is bent and extends forwards to form a second extending part, and the protruding part is embedded in the second extending part. And the protruding part wraps the second extending part. Therefore, the electric connector provided by the utility model is convenient for terminal forming and plastic binding force improvement.

Description

Technical Field

[0001] The utility model relates to an electric connector, in particular to an electric connector which is convenient for terminal molding and improves the plastic bonding force. Background Art

[0002] Among the types of electrical connectors commonly used in various electronic products, the connectors with Universal Serial Bus (USB) specifications are the most widely used. With the advancement of technology, there are more and more types of USB, such as USB 2.0, USB 3.0, Micro USB, Mini USB or USB TYPE-C. Among them, USB TYPE-C connectors have been widely used in various electronic products.

[0003] Taiwan Patent Certificate No. M604068 discloses "an electrical connector", including a body; a central grounding plate fixed in the body; a reinforced grounding plate fixed to the outer edge of the central grounding plate, the reinforced grounding plate is provided with a front wall portion and two opposite side walls, the front wall portion is fixed to the front edge of the central grounding plate, the upper and lower edges of the front wall portion are both beyond the upper and lower surfaces of the central grounding plate, the upper edge of the front wall portion and the upper surface of the central grounding plate form a height difference, the lower edge of the front wall portion and the lower surface of the central grounding plate form a height difference, the left and right ends of the front wall portion are respectively provided with side walls extending toward the central grounding plate, the side walls are respectively arranged on the left and right sides of the central grounding plate; and a terminal group fixed in the body, the terminal group has a plurality of high-speed terminals, and the plurality of high-speed terminals are arranged within the range formed by the front wall portion and the two side walls. Therefore, the utility model electrical connector has better electromagnetic interference protection and high-speed transmission stability.

[0004] However, during injection molding, the front end of the terminal and the insulating body are prone to not being fully molded, resulting in insufficient bonding force and a risk of poor contact during use.

[0005] Therefore, it is necessary to provide an electrical connector that facilitates terminal molding and improves plastic bonding strength. Summary of the invention

[0006] The purpose of the utility model is to provide an electrical connector to address the defects and shortcomings of the prior art.

[0007] To achieve the above-mentioned purpose, the utility model discloses an electrical connector, comprising: an insulating body; a front base, the front base is arranged at the front end of the insulating body, and a protrusion extends backward from the surface of the front base; and a terminal group, the terminal group is arranged in the insulating body, and the front end of the terminal group is covered in the front base, the terminal group is provided with a plurality of terminals and an insulator, and the plurality of terminals are fixedly arranged in the insulator, each of the terminals is provided with a fixing portion, the front end of the fixing portion extends forward to form a contact portion, the front end of the contact portion is thinned downward obliquely to form a first step portion, the first step portion is exposed on the surface of the front base, the top surface of the front end of the first step portion is thinned downward horizontally to form the first extension portion, the first extension portion is exposed on the surface of the front base, the front end of the first extension portion is thinned downward obliquely and bent to form a second step portion, the protrusion is embedded in the second step portion, the front end of the second step portion is bent and extends forward to form a second extension portion, and the protrusion covers the second extension portion.

[0008] As a further improvement, part of the second step portion is exposed from the surface of the protruding portion, and part of the second step portion is covered within the protruding portion.

[0009] As a further improvement, the insulator is provided with a main body portion, the front end of the main body portion extends forward to form a connecting portion, the front end of the connecting portion extends forward to form a tongue portion, the fixing portion is fixed in the main body portion and the connecting portion and is covered by the main body portion and the connecting portion, the contact portion, the first step portion, the first extension portion and the second step portion are fixed in the tongue portion, and the front end of the second extension portion exposes the front end of the tongue portion.

[0010] As described above, the utility model electrical connector adopts an innovative structural design, in which the top surface of the front end of the contact portion is thinned obliquely downward to form the first step portion, and the first step portion is convenient for designing and forming the terminal shape of the terminal group. The top surface of the front end of the first step portion is thinned horizontally downward to form the first extension portion, and the front end of the first extension portion is thinned obliquely downward and bent to form the second step portion. The front base covers a portion of the second step portion to achieve the positioning and retention of the terminal group and the front base. A protrusion is formed on the upper surface of the front base, and the protrusion is embedded in the second step portion. Part of the second step portion exposes the surface of the protrusion, and part of the second step portion covers the protrusion. Therefore, the utility model electrical connector facilitates terminal molding and improves plastic bonding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the electrical connector of the utility model.

[0012] Figure 2 It is a partial exploded view of the electrical connector of the present invention.

[0013] Figure 3 It is a partial exploded view of the electrical connector of the present invention.

[0014] Figure 4 This is an exploded view of the upper terminal set of the electrical connector of the present invention.

[0015] Figure 5 The utility model electric connector is along Figure 4 A partial enlarged view of the X1.

[0016] Figure 6 It is a schematic diagram of the electrical connector of the utility model.

[0017] Figure 7 The utility model electric connector is along Figure 6 Cross-sectional view along line VII-VII.

[0018] The descriptions of the reference numerals in the figures are as follows.

[0019] Electrical connector 100 Insulation body 1

[0020] Terminal group 2 Upper terminal group 21

[0021] Terminal 211 Insulator 212

[0022] Main body 2121 Connecting part 2122

[0023] Tongue 2123 Fixing part 213

[0024] Contact portion 214 Welding portion 215

[0025] First step portion 216 First extension portion 217

[0026] Second step portion 218 Second extension portion 219

[0027] Lower terminal group 22 Center piece 3

[0028] Masking sheet 4 Colloid 5

[0029] Insulation shell 6 Metal shell group 7

[0030] Metal insert 8 Front base 9

[0031] Protrusion 91. Implementation

[0032] In order to explain the technical content, structural features, purpose and effect of the electrical connector 100 of the present invention in detail, the following examples are given and detailed descriptions are provided with accompanying drawings. In this embodiment, the electrical connector 100 of the present invention is a TYPE-C connector. In specific implementation, the electrical connector 100 of the present invention can also be other types of connectors.

[0033] See also Figures 1 to 3 The utility model electric connector 100 comprises an insulating body 1, a terminal group 2, a center piece 3, two shielding pieces 4, a colloid 5, an insulating shell 6, a metal shell group 7, two metal plug-ins 8 and a front base 9. The insulating body 1 covers the center piece 3 and the terminal group 2, and the terminal group 2 is fixed in the insulating body 1. The center piece 3 is arranged in the middle of the terminal group 2 and is fixed in the insulating body 1. The two shielding pieces 4 are arranged on the upper and lower sides of the insulating body 1. The colloid 5 covers the rear end of the insulating body 1 and is arranged at the rear end of the insulating shell 6. The colloid 5 is used to fill the gap between the insulating shell 6 and the insulating body 1 to prevent water from flowing into the rear end of the utility model electric connector 100 and causing damage to the utility model electric connector 100. The insulating body 1 is fixed in the insulating shell 6. The metal shell group 7 is fixed on the upper and lower sides of the insulating shell 6, and the metal shell group 7 is used for shielding interference and grounding. The two metal inserts 8 are respectively disposed on the left and right sides of the insulating housing 6. The front base 9 is disposed at the front end of the insulating body 1, and the front base 9 covers the front end of the terminal set 2.

[0034] See also Figures 4 to 6 , the terminal group 2 is arranged in the insulating body 1. The terminal group 2 includes an upper terminal group 21 and a lower terminal group 22, and the center piece 3 is arranged between the upper terminal group 21 and the lower terminal group 22. The upper terminal group 21 and the lower terminal group 22 are respectively provided with a plurality of terminals 211 and an insulator 212, and the plurality of terminals 211 are fixed in the insulator 212.

[0035] See also Figures 4 to 6Each of the terminals 211 is provided with a fixing portion 213, a contact portion 214, a welding portion 215, a first step portion 216, a first extension portion 217, a second step portion 218 and a second extension portion 219. The front end of the fixing portion 213 extends forward to form the contact portion 214, and the rear end of the fixing portion 213 extends downward and then bends backward to form the welding portion 215. The top surface of the front end of the contact portion 214 is thinned downward obliquely to form the first step portion 216, and the first step portion 216 is convenient for designing and forming the terminal shape of the terminal group 2. The first step portion 216 is exposed on the surface of the front base 9. The top surface of the front end of the first step portion 216 is thinned downward horizontally to form the first extension portion 217. In this embodiment, the first extension portion 217 is exposed on the surface of the front base 9. The front end of the first extension portion 217 is thinned downward obliquely and bent to form the second step portion 218. The front base 9 covers the second step portion 218 to achieve positioning and fixing of the terminal group 2 and the front base 9. A protrusion 91 is formed on the surface of the front base 9, and the protrusion 91 is embedded in the second step portion 218. In this embodiment, part of the second step portion 218 is exposed from the surface of the protrusion 91, and part of the second step portion 218 is covered in the protrusion 91, so as to strengthen the structural strength of the terminal group 2 and the front base 9. The second step portion 218 is used to increase the structural strength of the terminal group 2 and the front base 9. The front end of the second step portion 218 is bent forward and extended horizontally to form the second extension portion 219. The protrusion 91 covers the second extension portion 219 to achieve positioning and fixing of the terminal group 2 and the front base 9. The front end of the second extension portion 219 is connected to a material strip (not shown in the figure).

[0036] When a mating connector (not shown) is inserted into the electrical connector 100 of the utility model, the terminal (not shown) of the mating connector first contacts the second step portion 218 and then contacts the contact portion 214. The second step portion 218 is used to reduce the wear of the terminal (not shown) of the mating connector. The specific implementation is not limited to this.

[0037] In this embodiment, the first step portion 216, the first extension portion 217 and a portion of the second step portion 218 are exposed on the surface of the front base portion 9. A portion of the second step portion 218 and the second extension portion 219 are covered by the front base portion 9. The specific implementation is not limited thereto.

[0038] The insulator 212 is provided with a main body 2121, a connecting portion 2122 and a tongue 2123. The front end of the main body 2121 extends forward to form the connecting portion 2122, and the front end of the connecting portion 2122 extends forward to form the tongue 2123. The fixing portion 213 is fixed in the main body 2121 and the connecting portion 2122 of the insulator 212 and is covered by the main body 2121 and the connecting portion 2122 of the insulator 212. The contact portion 214, the first step portion 216, the first extension portion 217 and the second step portion 218 are fixed in the tongue 2123 of the insulator 212. The front end of the second extension portion 219 is exposed to the front end of the tongue 2123. The welding portion 215 extends out of the bottom of the main body 2121 of the insulator 212.

[0039] In this embodiment, the structure of the lower terminal group 22 is substantially the same as that of the upper terminal group 21 , and will not be described in detail herein.

[0040] As mentioned above, the electrical connector 100 of the utility model adopts an innovative structural design. The top surface of the front end of the contact portion 214 is thinned downwardly obliquely to form the first step portion 216. The first step portion 216 is convenient for designing and facilitating the terminal shape molding of the terminal group 2. The top surface of the front end of the first step portion 216 is thinned downwardly horizontally to form the first extension portion 217. The front end of the first extension portion 217 is thinned downwardly obliquely and bent to form the second step portion 218. The front base 9 covers part of the second step portion 218 to achieve the positioning and retention of the terminal group 2 and the front base 9. A protrusion 91 is formed on the upper surface of the front base 9, and the protrusion 91 is embedded in the second step portion 218. Part of the second step portion 218 is exposed from the surface of the protrusion 91, and part of the second step portion 218 is covered by the protrusion 91. Therefore, the electrical connector 100 of the utility model is convenient for terminal molding and improves the plastic bonding force.

Claims

1. An electrical connector, characterized in that: include: An insulating body; a front base, the front base is arranged at the front end of the insulating body, and a protrusion extends backward from the surface of the front base; and a terminal group, the terminal group is arranged in the insulating body, and the front end of the terminal group is covered in the front base, the terminal group is provided with a plurality of terminals and an insulator, the plurality of terminals are fixedly arranged in the insulator, each of the terminals is provided with a fixing portion, the front end of the fixing portion extends forward to form a contact portion, the front end of the contact portion is thinned downward obliquely to form a first step portion, the first step portion is exposed on the surface of the front base, the top surface of the front end of the first step portion is thinned downward horizontally to form the first extension portion, the first extension portion is exposed on the surface of the front base, the front end of the first extension portion is thinned downward obliquely and bent to form a second step portion, the protrusion is embedded in the second step portion, the front end of the second step portion is bent and extends forward to form a second extension portion, and the protrusion covers the second extension portion.

2. The electrical connector according to claim 1, wherein: A portion of the second step portion is exposed from the surface of the protruding portion, and a portion of the second step portion is covered in the protruding portion.

3. The electrical connector according to claim 2, wherein: The insulator is provided with a main body portion, the front end of the main body portion extends forward to form a connecting portion, the front end of the connecting portion extends forward to form a tongue portion, the fixing portion is fixed in the main body portion and the connecting portion and is covered by the main body portion and the connecting portion, the contact portion, the first step portion, the first extension portion and the second step portion are fixed in the tongue portion, and the front end of the second extension portion is exposed outside the front end of the tongue portion.

Images