Electric connector

Abstract

The utility model discloses an electric connector. The electric connector comprises an insulating body; the terminal group is arranged in the insulating body, the terminal group is provided with a plurality of terminals and an insulating body, the plurality of terminals are fixedly arranged in the insulating body, each terminal is provided with a fixing part, the front end of each fixing part extends forwards to form a contact part, the front end of the insulating body forms a tongue part, and the tongue part is fixedly connected with the insulating body. The contact parts are fixedly held on the tongue part, the front end of the tongue part and the space between every two contact parts are sunken downwards to form a groove, each groove extends upwards to form a protruding part, the protruding parts are connected with the front end of the tongue part, the top surfaces of the protruding parts are flush with the surfaces of the contact parts, and the top surfaces of the protruding parts are connected with the front end of the tongue part. And the groove is divided into two spaces by the convex part. Therefore, the electric connector can avoid short circuit, corrosion and burning loss.

Description

Technical Field

[0001] The utility model relates to an electric connector, in particular to an electric connector which can avoid short circuit, corrosion and burning. 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] Chinese Patent Publication No. 216958586 discloses "a 16-pin platinum Type-C connector socket", including a terminal element, a first plastic part that is molded into a plastic element with the terminal element for the first time, a second plastic part that is molded into a plastic terminal element with the plastic element for the second time, an inner iron shell wrapped around the outer periphery of the plastic terminal element and forming an insertion interface with the plastic terminal element, and an outer iron shell wrapped around the outer periphery of the inner iron shell. The terminal element includes an upper row of signal terminals, a lower row of signal terminals, an upper power terminal, a lower power terminal and a grounding plate. The upper power terminal and the lower power terminal are plated with a layer of platinum plating, and the contact portions of the upper power terminal and the lower power terminal are embedded in the plastic body of the first plastic part.

[0004] However, the groove between the signal terminal and the first tongue portion of the above-mentioned 16-pin platinum Type-C connector socket is prone to accumulation of electrolytic precipitates, resulting in a short circuit, thereby causing the electrical connector to burn out.

[0005] Therefore, it is necessary to provide an electrical connector that can avoid short circuit, corrosion and burning. 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; and a terminal group, wherein the terminal group is arranged in the insulating body, the terminal group is provided with a plurality of terminals and an insulator, the plurality of the 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 insulator forms a tongue portion, the contact portion is fixed to the tongue portion, the front end of the tongue portion and the space between each two contact portions are recessed downward to form a groove, the groove extends upward to form a protrusion, the protrusion is connected to the front end of the tongue portion; wherein the top surface of the protrusion is flush with the surface of the contact portion, and the protrusion divides the groove into two spaces.

[0008] As a further improvement, the left and right sides of the groove extend upward to form a supporting portion, which is arranged on the left and right sides of the contact portion of the terminal. The left and right sides of the lower surface of the contact portion are provided with an oblique angle, and the supporting portion corresponds to the oblique angle.

[0009] As a further improvement, a connection surface is formed at the connection between the groove and the front end of the tongue, and one end of the protrusion is connected to the connection surface.

[0010] As a further improvement, the insulating body is provided with a main body, a stepped portion and a front base, the front end of the main body extends forward to form the stepped portion, the front end of the stepped portion extends forward to form the front base, the tongue is located between the stepped portion and the front base, the groove is arranged between the tongue and the front base, and the surface of the groove is flush with the surface of the front base.

[0011] 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 the tongue portion, and the fixing portion is retained in the main body portion and the connecting portion and is covered by the main body portion and the connecting portion.

[0012] As described above, the electrical connector of the utility model adopts an innovative structural design, in which the front end of the tongue and the contact portion of each two terminals are recessed downward to form the groove. The groove extends upward to form the protrusion. The top surface of the protrusion is flush with the surface of the contact portion, and the protrusion divides the groove into two spaces. The protrusion is used to separate the electrolytic precipitates in the groove to prevent the electrolytic precipitates from being connected together and forming conduction, causing the terminals to short-circuit, corrode and burn. Therefore, the electrical connector of the utility model can avoid short-circuit, corrosion and burn. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the electrical connector of the utility model.

[0014] Figure 2 It is a partial exploded view of the electrical connector of the present invention.

[0015] Figure 3 It is a partial exploded view of the electrical connector of the present invention.

[0016] Figure 4 This is an exploded view of the upper terminal set of the electrical connector of the present invention.

[0017] Figure 5 The utility model electric connector is along Figure 2 A partial enlarged view of the X1.

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

[0019] Electrical connector 100 Insulation body 1

[0020] Main body 11 Step 12

[0021] Front base 13 Terminal group 2

[0022] Upper terminal group 21 Terminal 211

[0023] Insulator 212 Main body 2121

[0024] Connecting part 2122 Tongue part 2123

[0025] Groove 2124 Connecting surface 2125

[0026] Protrusion 2126 Support portion 2127

[0027] Fixed portion 213 Contact portion 214

[0028] Bending portion 215 Extending portion 216

[0029] Welding part 217 Bevel 218

[0030] Lower terminal group 22 Center piece 3

[0031] Masking sheet 4 Colloid 5

[0032] Insulation shell 6 Metal shell group 7

[0033] Metal insert 8. DETAILED DESCRIPTION

[0034] 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.

[0035] 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 and two metal plug-ins 8. The insulating body 1 covers the center piece 3 and the terminal group 2. 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. The metal shell group 7 is used for shielding interference and grounding. The two metal plug-ins 8 are respectively arranged on the left and right sides of the insulating shell 6 .

[0036] See also Figure 3 The insulating body 1 is provided with a main body 11, a stepped portion 12 and a front base 13. The front end of the main body 11 extends forward to form the stepped portion 12, and the front end of the stepped portion 12 extends forward to form the front base 13. The front base 13 covers the front end of the terminal set 2.

[0037] See also Figure 4 and Figure 5 , 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.

[0038] Each of the terminals 211 is provided with a fixing portion 213, a contact portion 214, a bending portion 215, an extension portion 216 and a welding portion 217. 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 is bent downward to form the bending portion 215. The lower end of the bending portion 215 extends downward to form the extension portion 216. The lower end of the extension portion 216 is bent backward and extends to form the welding portion 217. An oblique angle 218 is provided on the left and right sides of the lower surface of each contact portion 214, and the oblique angle 218 is used to reduce the risk of debonding of the upper terminal group 21 and enhance its impact resistance.

[0039] 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 is fixed in the tongue 2123 of the insulator 212, and the welding portion 217 extends out of the bottom of the main body 2121 of the insulator 212. The tongue 2123 is located between the step portion 12 and the front base 13 of the insulator body 1.

[0040] The front end of the tongue 2123 and the contact portion 214 of each two terminals 211 are recessed downward to form a groove 2124. The groove 2124 is arranged between the tongue 2123 and the front base 13 of the insulating body 1. The surface of the groove 2124 is flush with the surface of the front base 13 of the insulating body 1. A connection surface 2125 is formed at the connection between the groove 2124 and the front end of the tongue 2123. In this embodiment, the connection surface 2125 is an inclined surface. The groove 2124 extends upward to form a protrusion 2126. One end of the protrusion 2126 is connected to the connection surface 2125, and the protrusion 2126 is connected to the tongue 2123. In this embodiment, the top surface of the protrusion 2126 is flush with the surface of the contact portion 214, and the protrusion 2126 divides the groove 2124 into two spaces. The protrusion 2126 is used to separate the electrolytic precipitates in the groove 2124 to prevent the electrolytic precipitates from being connected together and forming a conduction that causes the terminal 211 to short-circuit, corrode, and burn.

[0041] The left and right sides of the groove 2124 extend upward to form a support portion 2127, which is used to correct the position of the terminal 211. The support portion 2127 is disposed on the left and right sides of the contact portion 214 of the terminal 211. The support portion 2127 corresponds to the bevel 218 of the terminal 211.

[0042] 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.

[0043] As mentioned above, the electrical connector 100 of the utility model has an innovative structural design, and the front end of the tongue 2123 and the contact portion 214 of each two terminals 211 are recessed downward to form the groove 2124. The groove 2124 extends upward to form the protrusion 2126. The top surface of the protrusion 2126 is flush with the surface of the contact portion 214, and the protrusion 2126 divides the groove 2124 into two spaces. The protrusion 2126 is used to separate the electrolytic precipitates in the groove 2124 to prevent the electrolytic precipitates from being connected together and forming conduction, causing the terminals 211 to short-circuit, corrode and burn. Therefore, the electrical connector 100 of the utility model can avoid short-circuit, corrosion and burn.

Claims

1. An electrical connector, characterized in that: include: an insulating body; And a terminal group, the terminal group is arranged in the insulating body, the terminal group is provided with a plurality of terminals and an insulator, the plurality of the 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 insulator forms a tongue portion, the contact portion is fixed on the tongue portion, the front end of the tongue portion and the space between each two contact portions are recessed downward to form a groove, the groove extends upward to form a protrusion, the protrusion is connected to the front end of the tongue portion; wherein the top surface of the protrusion is flush with the surface of the contact portion, and the protrusion divides the groove into two spaces.

2. The electrical connector according to claim 1, wherein: The left and right sides of the groove extend upward to form a support portion, which is arranged on the left and right sides of the contact portion of the terminal. The left and right sides of the lower surface of the contact portion are provided with an oblique angle, and the support portion corresponds to the oblique angle.

3. The electrical connector according to claim 2, wherein: A connection surface is formed at a connection point between the groove and the front end of the tongue, and one end of the protrusion is connected to the connection surface.

4. The electrical connector according to claim 1, wherein: The insulating body is provided with a main body, a stepped portion and a front base, the front end of the main body extends forward to form the stepped portion, the front end of the stepped portion extends forward to form the front base, the tongue is located between the stepped portion and the front base, the groove is arranged between the tongue and the front base, and the surface of the groove is flush with the surface of the front base.

5. The electrical connector according to claim 1, wherein: The insulator is provided with a main body, the front end of the main body extends forward to form a connecting portion, the front end of the connecting portion extends forward to form the tongue, and the fixing portion is fixed in the main body and the connecting portion and covered by the main body and the connecting portion.

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