Connector

Abstract

A connector comprises an insulation body, a terminal set fixedly arranged on the insulation body and a center piece fixedly arranged in the middle of the terminal set. The central piece is provided with a main plate and a pair of bending arms, each bending arm is provided with a bending part which vertically extends out of the outer side edge of the main plate, the bending part extends forwards to form an extension arm, the front end of the extension arm is bent outwards and then extends forwards to form a first bent pin, and the first bent pin is bent outwards to form a second bent pin. The front end of the first bent pin extends forwards and then bends and extends towards the direction of the main board to form a second bent pin, and a fixing pin connected to the front side edge of the main board is formed at the tail end of the second bent pin. Therefore, the central sheet forms a three-dimensional structure, and the connecting area between the bending arms and the mainboard is increased through the fixing pins and the bending parts, so that the structural strength of the connector is enhanced.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a connector with preferred structural strength. Background Art

[0002] Among the connector types commonly used in various electronic products, the Universal Serial Bus (USB) connector is the most widely used, including USB 2.0, USB 3.0, Micro USB, Mini USB, and USB TYPE-C. Among them, the USB TYPE-C connector has the function of charging and transmitting data at the same time, and the TYPE-C interface can be plugged in and out on both sides, which improves the convenience of use. Therefore, the USB TYPE-C connector is widely used in various electronic products.

[0003] For example, Taiwan Patent No. M583146 discloses a connector, which includes a body, a terminal group and a center piece. The terminal group is fixed in the body, and the center piece is located in the middle of the terminal group. The center piece is provided with a body part and a pair of bending arms extending vertically upward from both sides of the body part, and each bending arm is provided with a bending part, an extension arm and a hook. The bending part is formed by bending and extending the rear end of the side edge of the body part, and the extension arm includes a first extension part, a connecting part and a second extension part formed by sequentially extending from the front end of the bending part, and the hook includes a first bent leg formed by bending outward from the front end of the second extension part and then extending forward, a second bent leg formed by extending forward from the front end of the first bent leg and then bending toward the body part, and a third bent leg formed by extending the free end of the second bent leg toward the body part and then bending toward the bending part. However, in this structural design, since the main body and the hook are not connected to each other and there is a large gap between the main body and the bending arm, the side structural strength of the center piece is insufficient. In the case of frequent plugging and unplugging, the bending arm is easily broken and damaged, thereby affecting the stability of signal transmission between the connector and the docking connector.

[0004] In view of the above disadvantages, it is necessary to provide a connector with optimal structural strength. Summary of the invention

[0005] The purpose of the utility model is to provide a connector, in particular to a connector with preferred structural strength.

[0006] In order to overcome the shortcomings of the prior art, the utility model discloses a connector, comprising an insulating body. A center piece is fixedly arranged in the insulating body, the front and rear ends of the center piece respectively form a front plate portion and a rear plate portion with a width greater than the front plate portion, the outer edge of the center piece vertically extends a pair of bending arms, each of the bending arms has a first convex rib and a second convex rib accommodated in the insulating body, the first convex rib is vertically bent and extended from the front edge of the rear plate portion, the second convex rib is vertically bent and extended from the outer edge of the front plate portion, the front end of the second convex rib extends toward the front plate portion to form an extension arm exposed outside the insulating body, the front end of the extension arm is bent outward and then extended forward to form a first bent leg exposed outside the insulating body, the front end of the first bent leg is extended forward and then bent and extended toward the front plate portion to form a second bent leg, and a fixed leg connected to the front side edge of the front plate portion is formed at the end of the second bent leg, and the second bent leg and the fixed leg are accommodated in the insulating body. A terminal group is fixed in the insulating body, and the center piece is fixed in the middle of the terminal group. An insulating shell is used to accommodate the insulating body. And a metal shell is combined with the insulating shell.

[0007] Furthermore, the extension arm, the first bent leg, the second bent leg and the front plate portion are collectively arranged to form a hollow portion, and a through hole is penetrated through the extension arm, and the through hole and the hollow portion are connected to each other.

[0008] Furthermore, the center piece includes a pair of retaining legs extending vertically from the rear end of the rear plate portion, the retaining legs are exposed on the outside of the insulating body, and the rear end of the metal shell extends backward with a pair of retaining portions, the retaining portions are exposed from the rear end of the insulating shell and adhered to the outer surface of the retaining legs.

[0009] Furthermore, at least one convex portion extends outward from the outer edge of the central piece.

[0010] Furthermore, the center piece includes at least one first positioning hole opened in the rear plate portion and at least one second positioning hole opened in the front plate portion, and the terminal group is provided with a positioning structure combined with the first positioning hole and the second positioning hole.

[0011] Further, the terminal group includes an upper row terminal group, a lower row terminal group and two pairs of grounding terminals, the upper row terminal group and the lower row terminal group are provided with the positioning structure, the upper row terminal group includes an upper base, an upper seat extending vertically upward from the rear end of the upper base and an upper tongue extending forward from the front end of the upper base, the lower row terminal group includes a lower base, a lower seat extending vertically upward from the rear end of the lower base and a lower tongue extending forward from the front end of the lower base, and the upper base is aligned with the lower base, the upper seat is aligned with the lower seat, the upper tongue is aligned with the lower tongue, the front plate is located between the upper tongue and the lower tongue, and the rear plate is located between the upper base and the lower base. And the two pairs of grounding terminals are symmetrically arranged on both sides of the upper row terminal group and the lower row terminal group, respectively, and the front side edge of each grounding terminal is bent downward and then extends a contact piece inward, and the contact piece is connected and fixed to the center piece.

[0012] Furthermore, the positioning structure includes at least one recessed hole recessed inwardly from the bottom surface of the upper seat, at least one protrusion extending downwardly from the lower surface of the upper tongue plate, at least one convex column extending upwardly from the upper surface of the lower base, and at least one protrusion protruding upwardly from the upper surface of the lower tongue plate, wherein the convex column passes through the first positioning hole and is aligned with the recessed hole, and the protrusion is aligned with the protrusion and is combined with the second positioning hole.

[0013] Furthermore, a buckle block extends outward from the outer edge of the upper seat, and a buckle piece extends forward from the outer edge of the lower seat. The buckle piece is U-shaped and recessed inward in the middle to form a buckle groove. The buckle block is combined with the buckle groove to be buckled and fixed with the buckle piece.

[0014] Furthermore, the insulating body includes a main body portion, a stepped portion extending vertically upward from the rear end of the main body portion, and a tongue portion extending forward from the front end of the main body portion, the main body portion and the tongue portion are accommodated in the interior of the insulating shell, the stepped portion exposes the rear end of the insulating shell, and the upper base portion and the lower base portion are arranged in the main body portion, the upper seat and the lower seat are arranged in the stepped portion, and the upper tongue plate and the lower tongue plate are arranged in the tongue portion.

[0015] Furthermore, a pair of lugs extend outwardly from both sides of the insulating shell, and the metal shell includes a base plate, a pair of side plates extending downwardly from both sides of the base plate, a pair of wings extending outwardly from the outer edges of the side plates, and the retaining portion formed by bending inwardly from the rear end of the side plates and then extending backward, and wherein the insulating shell is combined with the base plate and the side plates, and the lugs and the wings are aligned with each other.

[0016] In summary, the utility model provides a connector, comprising the insulating body, the terminal group fixed to the insulating body, and the center piece fixed in the middle of the terminal group. The center piece is provided with the main board and the bending arm, the bending arm is provided with the bending portion extending vertically from the outer edge of the main board, the bending portion extends forward to form the extension arm, the front end of the extension arm is bent outward and then extended forward to form the first bent leg, the front end of the first bent leg is extended forward and then bent and extended toward the main board to form the second bent leg, and the fixed leg connected to the front edge of the main board is formed at the end of the second bent leg. Thereby, the center piece forms a three-dimensional structure, and the connection area between the bending arm and the main board is increased by the fixing leg and the bending portion, thereby strengthening the structural strength of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the connector of the utility model.

[0018] Figure 2 It is an exploded view of the connector of the utility model.

[0019] Figure 3 It is a three-dimensional diagram of the center piece of the connector of the utility model.

[0020] Figure 4 It is an exploded view of the center piece and terminal group of the connector of the utility model.

[0021] Figure 5 It is another exploded view of the center piece and the terminal group of the connector of the utility model.

[0022] Figure 6 It is a schematic diagram showing that the ground terminal of the connector of the utility model is arranged on the center piece.

[0023] Figure 7 It is a partial stereoscopic diagram of the terminal group of the connector of the utility model.

[0024] Figure 8 It is a three-dimensional diagram of the metal shell of the connector of the utility model. DETAILED DESCRIPTION

[0025] In order to explain the technical content, structural features, achieved objectives and technical effects of the present invention in detail, embodiments are given below with reference to the accompanying drawings for detailed description.

[0026] See also Figure 1 and Figure 2The utility model provides a connector 100 for docking with a docking connector (not shown). The connector 100 includes an insulating body 1, a center piece 2, a terminal group 3, an insulating shell 4 and a metal shell 5. The center piece 2 is formed by continuous stamping of a metal sheet, and the center piece 2 is combined in the middle of the terminal group 3. The insulating body 1 covers the center piece 2 and the terminal group 3 and is accommodated in the interior of the insulating shell 4. The metal shell 5 is combined with the insulating shell 4 and fixed to the center piece 2. The connector 100 of the utility model is a TYPE-C connector, but is not limited thereto.

[0027] See also Figure 2 and Figure 3The terminal group 3 includes an upper terminal group 31 and a lower terminal group 32. The center piece 2 is disposed between the upper terminal group 31 and the lower terminal group 32 to shield signal interference. The center piece 2 includes a main board 21, a pair of bending arms 22 and a pair of retaining legs 23. The bending arms 22 are vertically bent and extended from the outer edge of the main board 21. The retaining legs 23 are vertically bent and extended upward from the rear end of the main board 21. The bending arms 22 and the retaining legs 23 are symmetrically disposed on both sides of the main board 21. In this embodiment, the main board 21 is roughly a T-shaped plate structure. The front and rear ends of the main board 21 are respectively provided with a front plate portion 211 and a rear plate portion 212. The width of the rear plate portion 212 is greater than the width of the front plate portion 211. Each of the bending arms 22 includes a bending portion 221, an extension arm 222, and a hook 223. The bending portion 221 includes a first convex rib 2211 and a second convex rib 2212. The first convex rib 2211 is bent and extended vertically upward from the front edge of the rear plate portion 212, and the second convex rib 2212 is bent and extended vertically upward from the outer edge of the front plate portion 211. The first convex rib 2211 and the second convex rib 2212 are connected to each other and form an L shape. The extension arm 222 is formed by extending obliquely downward from the front end of the second convex rib 2212. Each of the hooks 223 includes a first bent leg 2231, a second bent leg 2232, and a fixed leg 2233. The first bent leg 2231 is formed by bending the front end of the extension arm 222 outward and then extending forward. The second bent leg 2232 is formed by extending the front end of the first bent leg 2231 forward and then bending toward the front plate 211. The fixed leg 2233 is formed at the end of the second bent leg 2232. The width of the fixed leg 2233 is greater than the width of the second bent leg 2232. The fixed leg 2233 can be connected to the front side edge of the front plate 211 by spot welding, so as to prevent the fixed leg 2233 from springing outward to strengthen the structural strength of the bent arm 22. In this embodiment, the center piece 2 includes at least one protrusion 215 extending outward from the outer edge of the rear plate 212. The protrusion 215 is configured to connect a material strip (not shown) during the continuous stamping process.

[0028] See also Figure 2 and Figure 3 The retaining legs 23 are bent and extended vertically upward from the rear end of the rear plate 212, and the retaining legs 23 are exposed outside the insulating body 1. A pair of retaining portions 54 are extended backward from both sides of the metal shell 5, and the retaining portions 54 are exposed at the rear end of the insulating shell 4, and the retaining portions 54 can be attached to the outer surface of the retaining legs 23 by laser spot welding to achieve positioning and retaining.

[0029] See also Figure 2 and Figure 3 In this embodiment, the upper terminal group 31, the lower terminal group 32 and the center piece 2 are manufactured separately first, and then the upper terminal group 31 and the lower terminal group 32 are assembled on the upper and lower ends of the center piece 2 respectively, and the insulating body 1 is covered on the outer side of the upper terminal group 31, the lower terminal group 32 and the center piece 2 by injection molding. The main board 21 is accommodated in the insulating body 1, the bending arm 22 is located on the outer side of the terminal group 3, the bending portion 221 is accommodated in the insulating body 1, the extension arm 222 is exposed on the outer side of the insulating body 1, the first bent leg 2231 is exposed on the outer side of the insulating body 1, and the second bent leg 2232 and the fixed leg 2233 are fixed in the insulating body 1. Furthermore, the extension arm 222, the hook 223 and the front plate 211 are together formed to form a hollow portion 224, and a through hole 2221 is formed on the extension arm 222, and the through hole 2221 is connected to the hollow portion 224. During the injection molding process, the hollow portion 224 and the through hole 2221 are filled with molten plastic and provide better fluidity of the plastic, and play a limiting role after the plastic solidifies, thereby making the combination between the center piece 2 and the insulating body 1 more stable.

[0030] Compared with the prior art, the connector 100 of the present invention increases the connection area between the bending arm 22 and the center piece 2, thereby strengthening the structural strength of the connector 100. The first convex rib 2211 and the second convex rib 2212 are respectively arranged at the front edge of the rear plate 212 and the outer edge of the front plate 211 to increase the connection area between the bending portion 221 and the center piece 2, and the fixing leg 2233 is connected to the front side edge of the front plate 211 to increase the connection area between the hook 223 and the center piece 2. The bending arm 22 and the main board 21 are perpendicular to each other, so that the center piece 2 forms a three-dimensional structure to improve the side structural strength of the center piece 2. Therefore, when the docking connector (not shown) is plugged in and out of the connector 100, the terminal group 3 and the insulating body 1 can be effectively prevented from being broken and deformed.

[0031] See also Figure 4 and Figure 5The upper terminal assembly 31 includes an upper terminal seat 311 and a plurality of upper terminals 312 embedded in the upper terminal seat 311. The upper terminal seat 311 includes an upper base 3111, an upper seat 3112, and an upper tongue plate 3113. The upper seat 3112 is formed by vertically extending upward from the rear end of the upper base 3111, and the upper tongue plate 3113 is formed by extending forward from the front end of the upper base 3111. Each of the upper terminals 312 is provided with an upper fixing portion 313, an upper contact portion 314, and an upper welding portion 315. The upper fixing portion 313 is embedded in the upper base 3111 and the upper tongue plate 3113. The upper contact portion 314 extends forward from the front end of the upper fixing portion 313. The upper contact portion 314 exposes the upper surface of the upper tongue plate 3113 to be electrically connected with the docking connector (not shown). The upper welding portion 315 vertically extends upward from the rear end of the upper fixing portion 313, and the upper welding portion 315 is embedded in the upper seat 3112 and exposed at the top end of the upper seat 3112. The lower row terminal group 32 includes a lower row terminal seat 321 and a plurality of lower row terminals 322 embedded in the lower row terminal seat 321. The lower row terminal seat 321 includes a lower base 3211, a lower seat 3212, and a lower tongue plate 3213. The lower seat 3212 is formed by vertically extending upward from the rear end of the lower base 3211, and the lower tongue plate 3213 is formed by extending forward from the front end of the lower base 3211. The upper base 3111 is aligned with the lower base 3211, the upper seat 3112 is aligned with the lower seat 3212, and the upper tongue plate 3113 is aligned with the lower tongue plate 3213. Each of the lower row terminals 322 is provided with a lower fixing portion 323, a lower contact portion 324 and a lower welding portion 325. The lower fixing portion 323 is embedded in the lower base 3211 and the lower tongue plate 3213. The lower contact portion 324 extends forward from the front end of the lower fixing portion 323. The lower contact portion 324 exposes the upper surface of the lower tongue plate 3213 to be electrically connected with the docking connector (not shown). The lower welding portion 325 extends vertically upward from the rear end of the lower fixing portion 323. The lower welding portion 325 is embedded in the lower seat 3212 and exposed at the top end of the lower seat 3212.

[0032] See also Figure 4 and Figure 5In order to limit and fix the center piece 2, the upper row of terminal groups 31 and the lower row of terminal groups 32 to each other, the main board 21 is provided with at least one first positioning hole 213 opened at the rear end of the rear plate portion 212 and at least one second positioning hole 214 opened at the front end of the front plate portion 211, and the terminal group 3 is provided with a positioning structure combined with the first positioning hole 213 and the second positioning hole 214, and a snap block 318 and a snap member 328 are respectively provided on both sides of the terminal group 3, the snap block 318 is formed by extending outward from the outer edge of the upper seat 3112, and the snap member 328 is formed by extending forward from the outer edge of the lower seat 3212, the snap member 328 is U-shaped and is recessed inward in the middle to form a snap groove 328a, and the snap block 318 is combined with the snap groove 328a to be snapped and fixed with the snap member 328. In this embodiment, the positioning structure includes at least one recessed hole 316 recessed inwardly from the bottom surface of the upper seat 3112, at least one protrusion 317 protruding downward from the lower surface of the upper tongue plate 3113, at least one convex column 326 protruding upward from the upper surface of the lower base 3211, and at least one protrusion 327 protruding upward from the upper surface of the lower tongue plate 3213, wherein the convex column 326 passes through the first positioning hole 213 and is aligned with the recessed hole 316, and the protrusion 317 is aligned with the protrusion 327 and is combined with the second positioning hole 214.

[0033] See also Figures 5 to 7The terminal group 3 includes two pairs of grounding terminals 33, which are symmetrically arranged at the upper and lower ends of the center piece 2. One pair of grounding terminals 33 is arranged at the upper terminal group 31 and located on the left and right sides of the upper terminal 312, and the other pair of grounding terminals 33 is arranged at the lower terminal group 32 and located on the left and right sides of the lower terminal 322. Each grounding terminal 33 includes at least one protruding piece 331, a bent portion 332, a contact piece 333 and a welding foot 334. The protruding piece 331 is formed by protruding outward from the side wall of the grounding terminal 33. The protruding piece 331 is combined with the terminal group 3 and is configured to connect a material strip (not shown). The bent portion 332 is formed by bending the front side edge of the grounding terminal 33 downward and then extending backward. The bent portion 332 is combined with the terminal group 3 and aligned with the hollow portion 224 of the center piece 2. The contact piece 333 is formed by extending inward from the inner side of the bent portion 332, and the contact piece 333 can be positioned and fixed with the center piece 2 by spot welding. The welding foot 334 is formed by vertically extending upward from the rear end of the grounding terminal 33, and the welding foot 334 is exposed from the terminal group 3. More specifically, the protruding piece 331 and the bent portion 332 of the grounding terminal 33 located in the upper terminal group 31 are fixed in the upper terminal seat 311, and the protruding piece 331 and the bent portion 332 of the grounding terminal 33 located in the lower terminal group 32 are fixed in the lower terminal seat 321. The welding foot 334 of the grounding terminal 33 located in the upper terminal group 31 is embedded in the upper seat 3112 and exposed at the top of the upper seat 3112 , and the welding foot 334 of the grounding terminal 33 located in the lower terminal group 32 is embedded in the lower seat 3212 and exposed at the top of the lower seat 3212 .

[0034] See also Figure 2 , Figure 4 and Figure 5 The insulating body 1 comprises a main body 11, a stepped portion 12 and a tongue 13, wherein the stepped portion 12 is formed by vertically extending upward from the rear end of the main body 11, and the tongue 13 is formed by extending forward from the front end of the main body 11, and the main body 11 and the tongue 13 are accommodated in the interior of the insulating housing 4, and the stepped portion 12 exposes the rear end of the insulating housing 4. The upper base 3111 and the lower base 3211 are disposed in the main body 11, the upper seat 3112 and the lower seat 3212 are disposed in the stepped portion 12, and the upper tongue plate 3113 and the lower tongue plate 3213 are disposed in the tongue 13. The front plate 211 is located between the upper tongue plate 3113 and the lower tongue plate 3213, and the rear plate 212 is located between the upper base 3111 and the lower base 3211.

[0035] See also Figure 2 and Figure 8 The insulating shell 4 is a hollow plastic shell, and a pair of lugs 41 extend outward from both sides of the insulating shell 4. The metal shell 5 includes a base plate 51, a pair of side plates 52, a pair of wings 53, and a pair of retaining portions 54. The side plates 52 are formed by bending downward and extending from both sides of the base plate 51, the wings 53 are formed by bending outward and extending from the outer edges of the side plates 52, and the retaining portions 54 are formed by bending inward and then extending backward from the rear ends of the side plates 52. The insulating shell 4 is integrally combined with the base plate 51 and the side plates 52 by injection molding, and the lugs 41 and the wings 53 are aligned with each other.

[0036] In summary, the utility model provides a connector 100, comprising an insulating body 1, a terminal group 3 disposed in the insulating body 1, and a center piece 2 disposed in the middle of the terminal group 3. The center piece 2 is provided with the main board 21 and the bending arm 22 extending vertically from the outer edge of the main board 21, the bending arm 22 having the first convex rib 2211 and the second convex rib 2212 accommodated in the insulating body 1, the first convex rib 2211 is bent and extended from the front edge of the rear plate portion 212, the second convex rib 2212 is bent and extended from the outer edge of the front plate portion 211, and the front end of the second convex rib 2212 extends toward the direction of the front plate portion 211 to form a convex rib exposed outside the insulating body 1. The extension arm 222 is bent outward at the front end and then extends forward to form the first bent leg 2231 exposed outside the insulating body 1. The first bent leg 2231 extends forward at the front end and then bends and extends toward the front plate 211 to form the second bent leg 2232. A fixed leg 2233 connected to the front side edge of the front plate 211 is formed at the end of the second bent leg 2232. The second bent leg 2232 and the fixed leg 2233 are accommodated in the insulating body 1. In this way, the center piece 2 forms a three-dimensional structure. The utility model increases the connection area between the bent arm 22 and the main board 21 through the fixed leg 2233 and the bent portion 221, thereby strengthening the structural strength of the connector 100.

Claims

1. A connector, characterized in that: The invention comprises: an insulating body; a center piece, which is fixedly arranged in the insulating body, wherein the front and rear ends of the center piece respectively form a front plate portion and a rear plate portion with a width greater than the front plate portion, and a pair of bent arms are vertically extended from the outer edge of the center piece, and each of the bent arms has a first convex rib and a second convex rib accommodated in the insulating body, wherein the first convex rib is vertically bent and extended from the front edge of the rear plate portion, and the second convex rib is vertically bent and extended from the outer edge of the front plate portion, and the front end of the second convex rib extends toward the direction of the front plate portion to form an extension arm exposed outside the insulating body, The front end of the extension arm is bent outward and then extended forward to form a first bent leg exposed outside the insulating body. The front end of the first bent leg is extended forward and then bent toward the direction of the front plate to extend a second bent leg. A fixed leg connected to the front side edge of the front plate is formed at the end of the second bent leg. The second bent leg and the fixed leg are accommodated in the insulating body; a terminal group is fixed in the insulating body, and the center piece is fixed in the middle of the terminal group; an insulating shell is used to accommodate the insulating body; and a metal shell is combined with the insulating shell.

2. The connector according to claim 1, characterized in that: The extension arm, the first bent leg, the second bent leg and the front plate portion are jointly arranged to form a hollow portion. A through hole is penetrated through the extension arm, and the through hole is connected to the hollow portion.

3. The connector according to claim 1, characterized in that: The center piece includes a pair of retaining legs extending vertically from the rear end of the rear plate portion, the retaining legs are exposed on the outside of the insulating body, and the rear end of the metal shell extends backward to include a pair of retaining portions, the retaining portions are exposed from the rear end of the insulating shell and adhered to the outer surface of the retaining legs.

4. The connector according to claim 1, characterized in that: At least one convex portion extends outward from the outer edge of the central piece.

5. The connector according to claim 1, characterized in that: The center piece includes at least one first positioning hole opened in the rear plate portion and at least one second positioning hole opened in the front plate portion, and the terminal set is provided with a positioning structure combined with the first positioning hole and the second positioning hole.

6. The connector according to claim 5, characterized in that: The terminal group comprises an upper row terminal group, a lower row terminal group and two pairs of grounding terminals, the upper row terminal group and the lower row terminal group are provided with the positioning structure, the upper row terminal group comprises an upper base, an upper seat extending vertically upward from the rear end of the upper base and an upper tongue plate extending forward from the front end of the upper base, the lower row terminal group comprises a lower base, a lower seat extending vertically upward from the rear end of the lower base and a lower tongue plate extending forward from the front end of the lower base, and the upper base is aligned with the lower base, the upper seat is aligned with the lower seat, the upper tongue plate is aligned with the lower tongue plate, the front plate portion is located between the upper tongue plate and the lower tongue plate, and the rear plate portion is located between the upper base and the lower base; and the two pairs of grounding terminals are symmetrically arranged on both sides of the upper row terminal group and the lower row terminal group, respectively, and the front side edge of each grounding terminal is bent downward and then a contact sheet is extended inward, and the contact sheet is connected and fixed to the center sheet.

7. The connector according to claim 6, characterized in that: The positioning structure includes at least one recessed hole recessed inwardly from the bottom surface of the upper seat, at least one protrusion extending downwardly from the lower surface of the upper tongue plate, at least one convex column extending upwardly from the upper surface of the lower base, and at least one protrusion protruding upwardly from the upper surface of the lower tongue plate, wherein the convex column passes through the first positioning hole and is aligned with the recessed hole, and the protrusion is aligned with the protrusion and is aligned with the second positioning hole.

8. The connector according to claim 6, characterized in that: A buckle block extends outward from the outer edge of the upper seat, and a buckle piece extends forward from the outer edge of the lower seat. The buckle piece is U-shaped and recessed inward in the middle to form a buckle groove. The buckle block is combined with the buckle groove to be buckled and fixed with the buckle piece.

9. The connector according to claim 6, wherein the insulating body comprises a main body portion, a stepped portion extending vertically upward from the rear end of the main body portion, and a tongue portion extending forward from the front end of the main body portion, the main body portion and the tongue portion are accommodated in the interior of the insulating shell, the stepped portion exposes the rear end of the insulating shell, and the upper base portion and the lower base portion are arranged in the main body portion, the upper seat and the lower seat are arranged in the stepped portion, and the upper tongue plate and the lower tongue plate are arranged in the tongue portion.

10. The connector according to claim 3, characterized in that: A pair of lugs extend outwardly from both sides of the insulating shell, and the metal shell includes a base plate, a pair of side plates bent downwardly and extended from both sides of the base plate, a pair of wings bent outwardly and extended from the outer edges of the side plates, and the retaining portion formed by bending inwardly from the rear end of the side plates and then extending backward, and wherein the insulating shell is combined with the base plate and the side plates, and the lugs and the wings are aligned with each other.

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