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 sheet is provided with a main board, a first side arm and a second side arm, the first side arm and the second side arm vertically extend to two opposite sides of the main board, the first side arm is provided with a first elastic arm exposed out of the front end of the insulating body, and the inner side wall surface of the front end of the first elastic arm protrudes inwards to form a hemispherical first convex hull. The second side arm is provided with a second elastic arm exposed out of the front end of the insulating body, and the inner side wall surface of the front end of the second elastic arm protrudes inwards to form a hemispherical second convex hull. The first convex hull and the second convex hull abut against the two sides of a butt joint connector respectively to achieve more stable butt joint, and therefore the service life of the connector is prolonged, and the structural strength of the connector is improved.

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 from both sides, which improves the convenience of use. Therefore, the USB TYPE-C connector is widely used in various electronic products.

[0003] Taiwan Utility Model Patent No. M654220 discloses an electrical connector, comprising an insulating body, a terminal group arranged in the insulating body, a center piece arranged in the middle of the terminal group and fixed in the insulating body, and a colloid arranged at the rear end of the insulating body and covering the terminal group and the center piece. The center piece is provided with an arm, the arm portion comprises an elastic arm and a detection structure, and two sides of the center piece respectively extend an extension portion outward, wherein one of the extension portions is connected to the elastic arm, and the other extension portion is disconnected from the detection structure to form a gap. When a docking connector is plugged into the electrical connector, the elastic arm and the detection structure contact the two sides of the docking connector and can provide the holding force of the electrical connector when plugging and unplugging. However, in this structural design, since the arm portion and the center piece are arranged in the same plane, the side structural strength of the center piece is relatively insufficient. When the docking connector is frequently plugged and unplugged into the electrical connector, the arm portion is prone to excessive deformation or even fracture and damage, thereby affecting the stability of signal transmission between the electrical 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 center piece comprises a main board, at least one wing extending outward from an outer edge of the main board, a convex portion extending outward from another outer edge of the main board and located behind the wing, a first side arm vertically bent at the wing, and a second side arm vertically bent at the convex portion, the first side arm and the second side arm are combined with the insulating body and are located on opposite sides of the main board, wherein the first side arm has a first elastic arm exposed at the front end of the insulating body, a first extension plate with a width greater than the first elastic arm is provided at the front end of the first elastic arm, the inner side wall of the first extension plate protrudes inward to form a first convex bump, the second side arm has a second elastic arm exposed at the front end of the insulating body, a second extension plate with a width greater than the second elastic arm is provided at the front end of the second elastic arm, and the inner side wall of the second extension plate protrudes inward to form a second convex bump. A terminal group is fixedly arranged in the insulating body, and the center piece is fixedly arranged in the middle of the terminal group. and an insulating shell for accommodating the insulating body, the center piece and the terminal set.

[0007] Furthermore, the first side arm includes a first base extending outward from the wing portion and a first covering portion extending forward after being bent downward from the outer edge of the first base portion, the first covering portion is aligned with the outer side of the wing portion, the first base portion and the first covering portion are fixed in the insulating body, and the first elastic arm is formed at the front end of the first covering portion.

[0008] Furthermore, the second elastic arm includes a second base portion that is bent vertically downward from the outer edge of the protrusion and then extends forward in the direction of the wing portion, and a second covering portion that extends forward from the front end of the second base portion, the second base portion exposes the rear end of the insulating body, the second covering portion is penetrated by a through hole, the second covering portion is aligned with the outer side of the wing portion and is fixed in the insulating body, and the second elastic arm is formed at the front end of the second covering portion.

[0009] Furthermore, the bottom edge of the second base is bent outward and downward to extend a pin, and the rear end of the insulating shell is recessed inward to form a slot for the pin to be inserted and retained.

[0010] Furthermore, the center piece includes two bending arms symmetrically arranged on both sides of the main board, the bending arms are fixed in the insulating body, the first side arm and the second side arm are located on the outside of the two bending arms, and the first bulge is located at the front end of the bending arm, the second bulge is located in the middle of the bending arm, and the first bulge is located in front of the second bulge.

[0011] Furthermore, the center piece includes at least one extension portion extending outward from the outer edge of the main board, the extension portion is located behind the wing portion, and the protrusion is located between the wing portion and the extension portion.

[0012] Furthermore, the center piece includes a bottom plate that is bent and extended downward from the rear end of the main board, the bottom plate is located in the middle of the terminal group, and at least one fixing foot protrudes downward from the bottom edge of the bottom plate.

[0013] Furthermore, the insulating shell includes an internal space and a pair of elastic arm grooves, the internal space passes through the front and rear ends of the insulating shell to accommodate the insulating body, the elastic arm grooves are symmetrically formed by the two inner side wall depressions of the internal space, the elastic arm grooves pass backward to the rear end of the insulating shell, and the first elastic arm and the second elastic arm are accommodated in the elastic arm grooves, and the first convex bump and the second convex bump extend into the internal space.

[0014] Furthermore, the center piece includes at least one positioning hole opened on the main board, and the terminal group is provided with a positioning structure combined with the positioning hole.

[0015] Furthermore, the terminal group includes an upper row terminal group and a lower row terminal group, the center piece is arranged between the upper row terminal group and the lower row terminal group, the positioning structure includes at least one concave hole recessed from the lower surface of the upper row terminal group and at least one protrusion protruding from the upper surface of the lower row terminal group, and the protrusion passes through the positioning hole to align and combine with the concave hole.

[0016] In summary, the utility model provides a connector, comprising the insulating body, the terminal group fixed on 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 first side arm and the second side arm vertically extending on opposite sides of the main board, the first side arm having the first elastic arm exposed at the front end of the insulating body, the inner side wall of the front end of the first elastic arm protruding inward to form the first convex bump in the shape of a hemisphere, and the second side arm having the second elastic arm exposed at the front end of the insulating body, the inner side wall of the front end of the second elastic arm protruding inward to form the second convex bump in the shape of a hemisphere. After a docking connector is plugged into the connector, the first convex bump and the second convex bump respectively abut against the two sides of the docking connector to achieve a more stable docking, thereby improving the service life and 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 2It is an exploded view of the connector of the utility model.

[0019] Figure 3 It is another exploded view of the connector of the utility model.

[0020] Figure 4 It is a three-dimensional diagram of the center piece of the connector of the utility model.

[0021] Figure 5 It is another stereoscopic view of the center piece of the connector of the utility model.

[0022] Figure 6 It is an exploded view of the center piece and terminal group of the connector of the utility model.

[0023] Figure 7 It is another exploded view of the center piece and the terminal group of the connector of the utility model. DETAILED DESCRIPTION

[0024] In order to explain the technical content, structural features, achieved objectives and technical effects of the present invention in detail, embodiments are given below and described in detail with reference to the accompanying drawings.

[0025] See also Figure 1 and Figure 2 The utility model discloses a connector 100 for docking with a docking connector (not shown). The connector 100 comprises an insulating body 1, a center piece 2, a terminal group 3, a shielding piece group 4, an insulating shell 5 and a metal shell group 6. The center piece 2 is combined in the middle of the terminal group 3, the shielding piece group 4 is combined at the upper and lower ends of the terminal group 3, the insulating body 1 is accommodated in the interior of the insulating shell 5 after covering the center piece 2, the terminal group 3 and the shielding piece group 4, and the metal shell group 6 is fixed on the outer surface of the insulating shell 5 to achieve the function of shielding electromagnetic interference and grounding.

[0026] See also Figures 3 to 6The terminal group 3 includes an upper terminal group 31 and a lower terminal group 32. The shielding sheet group 4 includes an upper shielding sheet 41 installed at the upper end of the upper terminal group 31 and a lower shielding sheet 42 installed at the lower end of the lower terminal group 32. The center sheet 2 is arranged between the upper terminal group 31 and the lower terminal group 32 to shield signal interference. The center sheet 2 is formed by continuous stamping of metal sheets. The center sheet 2 includes a main board 21, two bending arms 22, an elastic arm structure 23, at least one wing 24, at least one extension 25, a convex portion 26 and a bottom plate 27. The two bending arms 22 are symmetrically arranged on the left and right sides of the main board 21, respectively. The elastic arm structure 23 is vertically bent and extended on the left and right sides of the main board 21. The elastic arm structure 23 is located on the outside of the two bending arms 22. In this embodiment, two wing portions 24 and two extension portions 25 are provided. The wing portions 24 are formed by extending outward from the left and right sides of the middle of the main board 21. The wing portions 24 are located behind the bending arm 22. The extension portions 25 are located behind the wing portions 24 and are respectively extended outward from the left and right sides of the rear end of the main board 21. During the continuous stamping process, the extension portions 25 can be configured to connect a material strip (not shown). The protrusion 26 is formed by extending outward from one side of the main board 21. The protrusion 26 is located between the wing portions 24 and the extension portions 25. The bottom plate 27 is bent downward and extended from the rear end of the main board 21, and at least one fixing foot 271 is protruded downward from the bottom edge of the bottom plate 27. The fixing foot 271 is configured to be fixed on a circuit board (not shown).

[0027] See also Figure 2 and Figure 3 The insulating shell 5 includes an internal space 51 and a pair of elastic arm grooves 52. The internal space 51 runs through the front and rear ends of the insulating shell 5 to accommodate the insulating body 1. The elastic arm grooves 52 are symmetrically formed by the left and right inner walls of the internal space 51, and the elastic arm grooves 52 extend backward to the rear end of the insulating shell 5, wherein the elastic arm structure 23 is arranged in the elastic arm groove 52 and extends into the internal space 51.

[0028] See also Figure 4 and Figure 5The elastic arm structure 23 includes a first side arm 28 and a second side arm 29 received in the elastic arm slot 52, the first side arm 28 is connected to one of the wings 24, the second side arm 29 is connected to the protrusion 26, and the first side arm 28 and the second side arm 29 are located at opposite sides of the main board 21. The first side arm 28 includes a first base 281, a first covering portion 282, a first elastic arm 283, a first extension plate 284 and a first protrusion 285. The first base 281 is formed by extending outward from the wing 24 on one side, the first covering portion 282 is formed by bending downward and extending from the outer edge of the first base 281 and then extending forward, the first covering portion 282 is aligned with the outer side of the wing 24, the first elastic arm 283 is extended forward from the front end of the first covering portion 282 and bent inward to form an arc-shaped first elastic arm 283, the first extension plate 284 is formed by extending forward from the front end of the first elastic arm 283, the width of the first extension plate 284 is greater than the width of the first elastic arm 283, and the inner side wall surface of the first extension plate 284 protrudes inward to form the first convex bump 285, the surface of the first convex bump 285 is hemispherical, and the first convex bump 285 extends into the internal space 51 to electrically contact with the docking connector (not shown), thereby achieving more stable docking.

[0029] See also Figure 4 and Figure 5 The second side arm 29 includes a second base portion 291 , a second covering portion 292 , a second elastic arm 293 , a second extension plate 294 and a second convex bump 295 . The second base 291 is formed by bending downward vertically from the outer edge of the protrusion 26 and then extending forward toward the wing 24. The second covering portion 292 extends forward from the front end of the second base 291 and is aligned with the outer side of the wing 24. The second elastic arm 293 extends forward from the front end of the second covering portion 292 and bends inward to form an arc-shaped second elastic arm 293. The second extension plate 294 is formed by extending forward from the front end of the second elastic arm 293. The width of the second extension plate 294 is greater than the width of the second elastic arm 293, and the inner side wall of the second extension plate 294 protrudes inward to form the second convex bump 295. The surface of the second convex bump 295 is hemispherical. The second convex bump 295 extends into the internal space 51 to electrically contact with the docking connector (not shown), thereby achieving more stable docking. A pin 296 is bent outward and downward from the bottom edge of the second base portion 291 , and a slot 53 is recessed inward at the rear end of the insulating housing 5 . The pin 296 is inserted into the slot 53 and fixed on the circuit board (not shown).

[0030] See also Figure 5Each of the bending arms 22 includes a bending portion 221, an extension arm 222, a first bent leg 223, and a second bent leg 224. The bending portion 221 is formed by bending and extending vertically upward from the outer edge of the main board 21, and the extension arm 222 is formed by extending forward from the front end of the bending portion 221. The first bent leg 223 is formed by bending outward from the front end of the extension arm 222 and then extending forward. The second bent leg 224 is formed by bending inward from the front end of the first bent leg 223 toward the main board 21 and then bending backward to extend.

[0031] See also Figure 4 and Figure 5 In the preferred embodiment of the accompanying drawings, the length of the second side arm 29 is greater than the length of the first side arm 28. In the front and rear directions of the center piece 2, the first convex bump 285 is arranged in front of the second convex bump 295, wherein the first convex bump 285 is located at the front end of the extension arm 222 of the bending arm 22, and the second convex bump 295 is located in the middle of the extension arm 222 of the bending arm 22, but not limited thereto. After the docking connector (not shown) is inserted into the internal space 51, the first elastic arm 283 and the second elastic arm 293 are elastically deformed outward, and the first convex bump 285 and the second convex bump 295 are respectively abutted against the two sides of the docking connector (not shown) to enhance the holding force. Furthermore, the first side arm 28 and the main board 21 are perpendicular to each other, and the second side arm 29 and the main board 21 are perpendicular to each other, so that the center piece 2 forms a three-dimensional structure to enhance the side structural strength of the center piece 2. Therefore, when the docking connector (not shown) is plugged in or out of the connector 100 , the elastic arm structure 23 can be effectively prevented from being broken or damaged due to stress concentration during the plugging and unplugging process, thereby improving the structural strength and service life of the connector 100 .

[0032] See also Figures 3 to 6The insulating body 1 includes a body portion 11 and a tongue portion 12, and the tongue portion 12 is formed by extending forward from the front end of the body portion 11. In this embodiment, the upper terminal group 31 and the lower terminal group 32 are respectively assembled at the upper and lower ends of the center piece 2, the upper shielding sheet 41 is installed at the upper end of the upper terminal group 31, and the lower shielding sheet 42 is installed at the lower end of the lower terminal group 32. Then, the insulating body 1 is covered on the outside of the center piece 2, the terminal group 3 and the shielding sheet group 4 by injection molding. The main board 21 is fixed in the insulating body 1, the wing 24 is fixed in the main body 11, the first base 281 and the first covering portion 282 are fixed in the main body 11, the second base 291 exposes the rear end of the main body 11, the second covering portion 292 is fixed in the main body 11, the first elastic arm 283 and the second elastic arm 293 expose the front end of the main body 11 and are accommodated in the elastic arm groove 52. The bending arm 22 is located outside the terminal group 3 and fixed in the tongue 12, the rear end of the extension arm 222 is fixed in the tongue 12, the front end of the extension arm 222 is exposed outside the tongue 12, the first bent leg 223 is exposed outside the tongue 12, and the second bent leg 224 is fixed in the tongue 12.

[0033] See also Figure 4 and Figure 5 The second covering portion 292 is provided with a through hole 297, the main board 21, the extension arm 222, the first bent leg 223 and the second bent leg 224 are collectively formed to form a hollow portion 225, and the extension arm 222 is provided with at least one through hole 226, and the through hole 226 is connected to the hollow portion 225. During the injection molding process, the through hole 297, the hollow portion 225 and the through hole 226 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.

[0034] See also Figure 6 and Figure 7The upper terminal group 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 substrate 313, an upper tongue plate 314 and an upper seat 315. The upper tongue plate 314 is formed by extending forward from the front end of the upper substrate 313, and the upper seat 315 is formed by extending vertically downward from the rear end of the upper substrate 313. The lower terminal group 32 includes a lower terminal seat 321 and a plurality of lower terminals 322 embedded in the lower terminal seat 321. The lower terminal seat 321 includes a lower substrate 323, a lower tongue plate 324 and a lower seat 325. The lower tongue plate 324 is formed by extending forward from the front end of the lower substrate 323, and the lower seat 325 is formed by extending vertically downward from the rear end of the lower substrate 323. The upper substrate 313 is aligned with the lower substrate 323, the upper tongue plate 314 is aligned with the lower tongue plate 324, the upper seat 315 is located at the rear end of the lower seat 325, the center piece 2 is located between the upper row terminal seat 311 and the lower row terminal seat 321, and the bottom plate 27 is located between the upper seat 315 and the lower seat 325. The body 11 covers the front end of the upper substrate 313 and the front end of the lower substrate 323, the tongue 12 covers the upper tongue plate 314 and the lower tongue plate 324, and the upper row terminals 312 and the lower row terminals 322 are exposed on the upper and lower surfaces of the tongue 12, respectively.

[0035] See also Figure 6 and Figure 7 In order to position and fix the center piece 2, the upper terminal group 31 and the lower terminal group 32 to each other, the main board 21 is provided with at least one positioning hole 211, and the terminal group 3 is provided with a positioning structure that is combined with the positioning hole 211. In this embodiment, the positioning structure includes at least one recessed hole 316 recessed in the lower surface of the upper substrate 313, and at least one protrusion 326 protruding from the upper surface of the lower substrate 323, and the protrusion 326 passes through the positioning hole 211 to align with the recessed hole 316.

[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, a center piece 2 disposed in the middle of the terminal group 3, and an insulating shell 5 for accommodating the terminal group 3. The center piece 2 is provided with a main board 21, and the two sides of the main board 21 respectively extend vertically to form the first side arm 28 and the second side arm 29. The inner side wall of the front end of the first side arm 28 protrudes inward to form the first convex bump 285 in the shape of a hemispherical surface, and the inner side wall of the front end of the second side arm 29 protrudes inward to form the second convex bump 295 in the shape of a hemispherical surface. After the docking connector (not shown) is docked with the connector 100, the first side arm 28 and the second side arm 29 are elastically deformed in the elastic arm groove 52, and the first convex bump 285 and the second convex bump 295 respectively abut against the two sides of the docking connector (not shown) to achieve a more stable docking. Furthermore, the center piece 2 is a three-dimensional structure, so the first side arm 28 and the second side arm 29 are not prone to breakage during plugging and unplugging, thereby effectively improving the service life and structural strength of the connector 100 .

Claims

1. A connector, characterized in that: The invention comprises: an insulating body; a center piece fixedly arranged in the insulating body, wherein the center piece comprises a main board, at least one wing extending outward from an outer edge of the main board, a convex portion extending outward from another outer edge of the main board and located behind the wing portion, a first side arm vertically bent at the wing portion, and a second side arm vertically bent at the convex portion, wherein the first side arm and the second side arm are combined with the insulating body and are located at opposite sides of the main board, wherein the first side arm has a first elastic arm exposed at the front end of the insulating body, a first extension plate with a width greater than the first elastic arm is provided at the front end of the first elastic arm, an inner side wall of the first extension plate protrudes inwardly to form a first convex bump, and the second side arm has a second elastic arm exposed at the front end of the insulating body, a second extension plate with a width greater than the second elastic arm is provided at the front end of the second elastic arm, and an inner side wall of the second extension plate protrudes inwardly to form a second convex bump; a terminal group fixedly arranged in the insulating body, and the center piece is fixedly arranged in the middle of the terminal group; and an insulating shell for accommodating the insulating body, the center piece and the terminal group.

2. The connector according to claim 1, characterized in that: The first side arm includes a first base extending outward from the wing portion and a first covering portion extending forward after being bent downward from the outer edge of the first base portion, the first covering portion is aligned with the outer side of the wing portion, the first base portion and the first covering portion are fixed in the insulating body, and the first elastic arm is formed at the front end of the first covering portion.

3. The connector according to claim 1, characterized in that: The second elastic arm includes a second base portion that is bent vertically downward from the outer edge of the protrusion and then extends forward in the direction of the wing portion, and a second covering portion that extends forward from the front end of the second base portion, the second base portion exposes the rear end of the insulating body, the second covering portion is penetrated by a through hole, the second covering portion is aligned with the outer side of the wing portion and is fixed in the insulating body, and the second elastic arm is formed at the front end of the second covering portion.

4. The connector according to claim 3, characterized in that: The bottom edge of the second base is bent outward and downward to extend a pin, and the rear end of the insulating shell is recessed inward to form a slot for the pin to be inserted and retained.

5. The connector according to claim 1, characterized in that: The center piece includes two bending arms symmetrically arranged on both sides of the main board, the bending arms are fixed in the insulating body, the first side arm and the second side arm are located on the outside of the two bending arms, and the first bulge is located at the front end of the bending arm, the second bulge is located in the middle of the bending arm, and the first bulge is located in front of the second bulge.

6. The connector according to claim 1, characterized in that: The central piece includes at least one extending portion extending outward from the outer edge of the main board, the extending portion is located behind the wing portion, and the convex portion is located between the wing portion and the extending portion.

7. The connector according to claim 1, characterized in that: The center piece includes a bottom plate that is bent and extended downward from the rear end of the main board. The bottom plate is located in the middle of the terminal group. The bottom edge of the bottom plate protrudes downward with at least one fixing foot.

8. The connector according to claim 1, characterized in that: The insulating shell includes an internal space and a pair of elastic arm grooves. The internal space passes through the front and rear ends of the insulating shell to accommodate the insulating body. The elastic arm grooves are symmetrically formed by the depressions of the two inner side walls of the internal space. The elastic arm grooves pass backward to the rear end of the insulating shell, and the first elastic arm and the second elastic arm are accommodated in the elastic arm grooves. The first convex bump and the second convex bump extend into the internal space.

9. The connector according to claim 1, characterized in that: The center piece includes at least one positioning hole opened on the main board, and the terminal group is provided with a positioning structure combined with the positioning hole.

10. The connector according to claim 9, characterized in that: The terminal group includes an upper row terminal group and a lower row terminal group, the center piece is arranged between the upper row terminal group and the lower row terminal group, the positioning structure includes at least one concave hole recessed from the lower surface of the upper row terminal group and at least one protrusion formed by protruding from the upper surface of the lower row terminal group, and the protrusion passes through the positioning hole to align and combine with the concave hole.

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