TWI816126B - Electrical connector - Google Patents

Abstract

An electrical connector having an insulating housing, a plurality of conductive terminals, a shielding sheet and a shielding shell is provided. The insulating housing has a base and a tongue plate. The conductive terminals include an upper terminal and a lower terminal arranged on an upper side and a lower side of the tongue plate. The shielding sheet is embedded in the insulating housing and located between the upper terminal and the lower terminal. The shielding sheet respectively extends an extending section through the insulating housing on both sides, and an end of each extending section is folded back with a clamping portion. The shielding shell sleeves and covers the insulating housing and has two grooves socketing the clamping portions on both sides to contact the shielding sheet. Thereby, the electrical connector has good and stable electromagnetic compatibility under high-speed signal transmission.

Description

Electrical connector structure

The present invention relates to the technical field of electrical connectors, and in particular, to an electrical connector structure that still has good and stable electromagnetic compatibility under high-speed signal transmission.

With the vigorous development of technology, the signal transmission rate between various electronic product interfaces has always been a key research and development project. Therefore, the early transmission rate has increased from 1.5Mbps of USB1.0 to the highest 20Gbps of USB3.2 in recent years, and even The new USB4 can increase up to 40Gbps.

In addition, as various electronic products move toward miniaturization, various connectors must maintain a certain size while increasing the transmission rate, making the electromagnetic shielding structure of various connectors more difficult; and the iron of many USB connectors There may be gaps or holes in the shell that may cause signal interference. Therefore, how to design a connector so that it can still have good and stable electromagnetic compatibility and avoid signal interference under high-speed signal transmission is a shortcoming that needs to be improved urgently.

In view of this, the inventor has devoted himself to research and applied academic theory to solve the above-mentioned problems in order to solve the above-mentioned deficiencies in the prior art, which has become the inventor's goal of improvement.

The main purpose of the present invention is to provide an electrical connector structure with good and stable electromagnetic compatibility under high-speed signal transmission.

In order to achieve the above object, the present invention provides an electrical connector structure, which includes an insulating body, a plurality of conductive terminals, a shielding sheet and a shielding shell. The insulating body includes a base and a tongue extending from the base. The conductive terminals include An upper row of terminals and a lower row of terminals. The upper row of terminals and the lower row of terminals are respectively provided on the upper and lower sides of the tongue plate. The shielding piece is embedded in the insulating body and is located between the upper row of terminals and the lower row of terminals. The two sides of the shielding piece There is an extension section extending out of the insulating body on each side, and the end of each extension section is folded to form an engaging portion. The shielding shell system is sleeved and covered with the insulating body, and a slot is provided on both sides of the shielding shell. Each clamping slot is sleeved and clamped to each engaging portion so that the shielding shell and the shielding piece are in contact.

The present invention also has the following effect: by folding back into a double-layered engaging portion, the structure can be strengthened to avoid deformation or insufficient engaging force. The guide slope can improve the smoothness of the engaging portion when inserted into the card slot. The bumps on the upper and lower sides of the slot allow the bumps and the engaging portion to interfere with each other and securely engage without loosening. The gap can be used to prevent the front end of the engaging portion from abutting the closed end of the slot after insertion, thereby affecting the assembly accuracy. By arranging the joint of the shielding shell above the tongue plate, the shielding shell below the tongue plate has no holes and gaps, and can maintain good electromagnetic shielding effect. Through the outer shielding shell, further shielding can be done at the joint at the top of the shielding shell and the end of the insulating body to enhance the electromagnetic shielding effect above and at the end of the insulating body. The electrical connector can be supported on the printed circuit board by each support bump to prevent it from falling forward and achieve the support effect.

10: Insulating body

11:Base

12: Tongue plate

13: Positioning block

14:Buckle groove

20:Conductive terminal

21: Upper row terminals

22: Lower row of terminals

30:Shielding piece

31:Extended section

32: Engagement part

40:Shielding shell

41:Card slot

411:Guide slope

412: Bump

413: Giving way gap

42:joint

43: Positioning slot

44:Buckle arm

45: Support bump

46, 52: Welding feet

50:Outer shielding shell

51:Back cover

A:Printed circuit board

Figure 1 is an exploded perspective view of the present invention.

Figure 2 is an exploded perspective view of the present invention from another perspective.

Figure 3 is a three-dimensional appearance view of the shielding sheet of the present invention.

Figure 4 is a partially exploded three-dimensional view of the present invention.

Figure 5 is an assembly diagram (1) of the present invention.

Figure 6 is an assembly diagram (2) of the present invention.

Figure 7 is a three-dimensional appearance view of the present invention.

Figure 8 is a three-dimensional appearance view of the present invention from another perspective.

Figure 9 is a diagram of the usage state when the present invention is applied to a printed circuit board.

The detailed description and technical content of the present invention will be described below with reference to the drawings. However, the attached drawings are only for illustrative purposes and are not intended to limit the present invention.

The present invention provides an electrical connector structure, as shown in FIGS. 1 to 4 , including an insulating body 10 , a plurality of conductive terminals 20 , a shielding piece 30 and a shielding shell 40 .

The insulating body 10 is made of plastic or other insulating materials. It mainly includes a base 11 and a tongue 12 extending from the base 11 . The tongue plate 12 is a flat plate body.

The conductive terminal 20 is made of a material with good conductivity such as copper or its alloy. It mainly includes an upper row of terminals 21 and a lower row of terminals 22, and the upper row of terminals 21 and the lower row of terminals 22 are respectively arranged on the upper and lower sides of the tongue plate 12. The tongue plate 12 can thereby separate the upper row of terminals 21 and the lower row of terminals 22 to prevent the two from contacting and affecting signal transmission.

The shielding sheet 30 is a sheet structure made of metal material. It is embedded in the insulating body 10 and located between the upper row of terminals 21 and the lower row of terminals 22 , and is separated from the upper row of terminals 21 and the lower row of terminals 22 through the insulating body 10 to avoid direct contact. The shielding piece 30 can thereby be used as an electronic shield to prevent signals from interfering with each other between the upper row of terminals 21 and the lower row of terminals 22 . An extension section 31 extends out of the insulating body 10 on both sides of the shielding sheet 30 , and the end of each extension section 31 is also folded to form an engaging portion 32 .

In this embodiment, the engaging portion 32 is a double-layered structure formed by the end of the extension section 31 being bent downward in a direction away from the tongue plate 12 . However, the invention is not limited to this. For example, the end of the extension section 31 can also be bent downwards. The engaging portion 32 can be folded upward in a direction away from the tongue plate 12 , folded inward from the outside toward the insulating body 10 , or the engaging portion 32 can be made into a double-layer structure by welding or other methods.

The shielding case 40 is made of metal sheets that are bent and welded, and is generally in the shape of an oval. The shielding case 40 is sleeved and covered with the insulating body 10, and is provided with a slot 41 on both sides. Each slot 41 is sleeved and clamped on each engaging portion 32 so that the shielding shell 40 and the shielding piece 30 are in contact. . This allows the shielding case 40 to act as an electromagnetic shield relative to the upper row of terminals 21 and the lower row of terminals 22 . In addition, since the engaging portion 32 is formed by folding the extension section 31, the double-layer thickness after folding can increase the structural strength of the engaging portion 32, thereby preventing excessive deformation or excessive deformation when engaging with the engaging groove 41. It is a problem of insufficient engagement force and falling off.

For further explanation, please refer to Figure 5. A guide slope 411 is respectively formed at the opening of the card slot 41 , thereby improving the smoothness of the engaging portion 32 when being inserted into the card slot 41 . In addition, a protrusion 412 is respectively protruded from the upper and lower sides of the slot 41 . This allows the protrusions 412 to interfere with the engaging portion 32 when the engaging portion 32 is inserted into the slot 41, so that the two are firmly engaged and will not loosen, thereby ensuring that the shielding piece 30 and the shielding case are securely connected. Keep in touch between 40. Also, please refer to Figure 6. A relief gap 413 is also formed at the closed end of the card slot 41 . Since there is a certain tolerance in the length of the engaging portion 32 when it is folded, the clearance gap 413 can be used to prevent the front end of the engaging portion 32 from abutting the closed end of the engaging groove 41 after the engaging portion 32 is inserted, thereby Affect assembly accuracy.

Referring back to FIG. 5 and FIG. 6 , it is a schematic diagram of the installation of the shielding housing 40 of the present invention. First, cover the insulating body 10 with the shielding case 40 and align the slots 41 on both sides with the engaging parts 32. At this time, the guide slope 411 at the opening of the slot 41 can facilitate the insertion of the engaging parts 32, as shown in Figure 5. Then, insert the engaging portion 32 into the engaging slot 41 for fastening. The engaging portion 32 and the engaging slot 41 can be tightly engaged through each protrusion 412, and the clearance gap 413 can prevent the front end of the engaging portion 32 from being pushed. The shielding case 40 causes assembly errors, as shown in Figure 6.

For special instructions, please refer to Figures 1 and 2. The shielding shell 40 of the electrical connector structure of the present invention is made by bending both sides of the metal sheet upward to form a shell and forming a joint 42 . Therefore, the joint 42 of the shielding case 40 is located above the tongue plate 12 , so that there are no holes or gaps in the shielding case 40 below the tongue plate 12 , thereby maintaining a good electromagnetic shielding effect.

Furthermore, the electrical connector structure of the present invention further includes an outer shielding shell 50 . The outer shielding shell 50 is made of a bent metal sheet, and is generally in the shape of an inverted U-shaped cover. The outer shielding shell 50 covers the top of the shielding shell 40 and shields the joint 42, and the rear end of the outer shielding shell 50 is also bent with a back cover 51. The back cover 51 shields the insulating body 10 away from the tongue. One end of plate 12. In this way, the joint 42 at the top of the shielding case 40 and the end of the insulating body 10 can be further shielded to enhance the electromagnetic shielding effect above and at the end of the insulating body 10 .

Specifically, in this embodiment, each slot 41 is formed on both sides of the shielding case 40 . However, the present invention is not limited thereto. For example, each locking slot 41 may also be formed on both sides of the outer shielding shell 50 and be respectively locked with the engaging portion 32 of the shielding piece 30 to achieve the electromagnetic shielding effect. This is only a simple deformation that a person with ordinary knowledge of the present invention can easily think of. Therefore, whether the engaging portion 32 is formed on the shield case 40 or the outer shield case 50, it should be within the protection scope of the present invention.

For further explanation, please refer to Figures 2 and 8. A plurality of positioning blocks 13 are protruding from the bottom of the insulating body 10 toward the extending direction of the tongue plate 12 . A plurality of positioning grooves 43 corresponding to each positioning block 13 are formed at the bottom of the shielding case 40 . Each positioning block 13 is locked corresponding to each positioning groove 43 . Set bit. This ensures that the shielding case 40 and the insulating body 10 can be installed in position when they are assembled. Next, please refer to FIG. 7 and FIG. 8 , which are appearance views from different perspectives after the shielding case 40 and the insulating body 10 of the present invention are assembled.

Referring again to FIG. 1 , the top of the insulating body 10 is provided with a plurality of buckle slots 14 , and the top of the shielding case 40 is provided with a plurality of buckle arms 44 . Please refer to FIG. 7 again. When the shielding case 40 is sleeved and covered on the insulating body 10 and the engaging portion 32 is locked in the slot 41, each buckle arm 44 can be buckled downwardly in each buckle slot 14. inside, thereby further fixing the shielding case 40 to prevent it from falling off from the insulating body 10 .

Also, please refer to Figures 2, 6 and 8. A plurality of support bumps 45 are also formed on the bottom of the shielding case 40 , and each support bump 45 is a substantially circular bump. It is made by stretching the metal sheet of the shielding case 40 before bending to form the case. Referring again to FIG. 1 and FIG. 2 , the shielding case 40 and the outer shielding case 50 are both formed with a plurality of soldering pins 46 and 52 . Next, please refer to FIG. 9 , which is a usage diagram when the present invention is applied to printed circuit board A. Each of the solder legs 46 and 52 is passed through the printed circuit board A for welding fixation, and each support bump 45 can be supported on the printed circuit board A to prevent the entire electrical connector from falling forward, thereby achieving a supporting effect. Compared with the conventional technology, the general design is to form a support step at the front end of the solder leg, so that when each solder leg is welded and fixed to the printed circuit board, it can be supported by the support step without falling over; however, due to different printing The thickness of the paint on the circuit board is different, which will cause the electrical connector to be lifted or tilted accordingly. Therefore, the support bumps of the electrical connector of the present invention can also effectively improve this shortcoming and be applicable to various printed circuits. board effect.

To sum up, the present invention has industrial applicability, novelty and advancement, fully meets the requirements for patent application, and the application can be filed in accordance with the patent law. Of course, the present invention can also have various other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can evolve various corresponding changes and modifications according to the present invention. However, these corresponding changes and deformations shall all fall within the protection scope of the patent applied for by the present invention.

10: Insulating body

11:Base

12: Tongue plate

14:Buckle groove

20:Conductive terminal

21: Upper row terminals

22: Lower row of terminals

30:Shielding piece

31:Extended section

32: Engagement part

40:Shielding shell

41:Card slot

42:joint

44:Buckle arm

46, 52: Welding feet

50:Outer shielding shell

51:Back cover

Claims (10)

An electrical connector structure includes: an insulating body including a base and a tongue extending from the base; a plurality of conductive terminals including an upper row of terminals and a lower row of terminals, the upper row of terminals and the lower row of terminals being respectively Provided on the upper and lower sides of the tongue plate; a shielding piece is embedded in the insulating body and is located between the upper row of terminals and the lower row of terminals. An extension extending through the insulating body extends on both sides of the shielding piece. segments, and the end of each extension segment is folded back and provided with a double-layered engaging portion; and a shielding shell that is sleeved and covered with the insulating body, and a slot is provided on both sides of the shielding shell, each The clamping slot is sleeved and clamped to each engaging portion so that the shielding shell and the shielding piece are in contact. The electrical connector structure as claimed in claim 1, wherein a plurality of bumps protrudes from each slot, and each of the bumps interferes with the engaging portion. The electrical connector structure as claimed in claim 1, wherein each slot is formed with a plurality of guide slopes. The electrical connector structure as claimed in claim 1, wherein a relief gap is formed in each slot, and the front end of the engaging portion is located in the relief gap. The electrical connector structure as claimed in claim 1, wherein a plurality of support bumps are formed on the bottom of the shielding housing. The electrical connector structure as claimed in claim 5, wherein each of the supporting bumps is a circular bump. The electrical connector structure as claimed in claim 1, wherein the shielding shell has a joint, and the joint is located above the tongue plate. The electrical connector structure according to claim 7, further comprising an outer shielding shell, the outer shielding shell covers the shielding shell and shields the joint. The electrical connector structure as claimed in claim 8, wherein the outer shielding shell is bent with a back cover, and the back cover covers an end of the insulating body away from the tongue plate. The electrical connector structure as claimed in claim 1, wherein the insulating body is provided with a plurality of buckling grooves, the shielding shell is provided with a plurality of buckling arms, and each of the buckling arms is buckled with each of the buckling grooves.

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