Electrical connector

Abstract

The application discloses an electric connector, comprising: an insulating body; a plurality of first terminal assemblies fixed to the insulating body and arranged in a first column, each first terminal assembly comprising two first terminals, a first insulating block, a first shielding member and a second shielding member, the first shielding member having a first main body part and at least one first extension arm, the first extension arm being fixed to a first outer shielding surface of the second shielding member; a first grounding sheet fixed to a plurality of first outer shielding surfaces in the first column, the first grounding sheet being provided with at least one accommodation area, the accommodation area accommodating a corresponding first extension arm, the first grounding sheet and the first extension arm in the accommodation area overlapping in a projection part along a first direction. The application can reduce external interference on the first terminal, improve the shielding effect of the electric connector, and reduce the thickness of the electric connector.

Description

Technical Field

[0001] This invention relates to an electrical connector, and more particularly to an electrical connector with good shielding effect and small thickness. Background Technology

[0002] A conventional electrical connector includes an insulating body, a pair of differential terminals held in the insulating body, and a shielding shell surrounding the pair of differential terminals. For ease of molding, the shielding shell is typically formed by two shielding bodies, each having a fixing hole and a fixing protrusion that cooperate to fix the two shielding bodies together.

[0003] The two shields are fixed together by means of the fixing hole and the fixing protrusion. The fixing hole will leave a certain gap in the shield shell, which will cause the differential terminal to be affected by external interference signals, affecting the shielding effect of the shield shell, and thus affecting the signal transmission of the electrical connector.

[0004] Therefore, it is necessary to design a new electrical connector to overcome the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an electrical connector that achieves mutual fixation between the first and second shielding components by fixing the first extension arm to the first outer shielding surface of the second shielding component. This eliminates the need for fixing holes in the first or second shielding component, reducing interference from external interference signals entering the first shielding space and causing interference to the first terminal. The electrical connector has excellent shielding performance. Furthermore, the first grounding plate connects multiple second shielding components into a unified grounding shielding structure, further improving the shielding effect of the electrical connector. By providing a clearance area, the thickness of the first extension arm and the first grounding plate is prevented from overlapping, thereby reducing the thickness of the electrical connector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electrical connector, comprising: At least one insulating body; a plurality of first terminal assemblies fixed to the insulating body and arranged in a first column, each first terminal assembly including two first terminals, a first insulating block fixing the two first terminals, and a first shield and a second shield in contact with each other, wherein the first shield has a first main body and at least one first extension arm extending from the first main body, the second shield has a first inner shield surface and a first outer shield surface disposed opposite to each other along its thickness direction, the first inner shield surface and the first main body together enclosing a first shield space, the first insulating block and the two first terminals being located within the first shield space, and the first extension arm being fixed to the first outer shield surface; a first grounding plate fixed to the plurality of first outer shield surfaces located in the first column, and the first grounding plate having at least one clearance area, the clearance area clearance being disposed of by the corresponding first extension arm, defining a first direction perpendicular to the thickness direction of the first grounding plate, the first grounding plate and the first extension arm located in the clearance area overlapping in projection along the first direction, the first extension arm being located within the corresponding clearance area, such that the first grounding plate is confined within the first extension arm.

[0007] Furthermore, the first grounding plate has at least one first spoke and a plurality of second spokes, the first spokes simultaneously contacting a plurality of first outer shielding surfaces located in the first column, each second spoke being fixed to a corresponding first outer shielding surface located in the first column, and each second spoke being cross-connected to the first spoke; the first shielding member has two first extension arms arranged adjacent to each other along the length direction of the first main body, the two first extension arms being adjacent to the two side edges of the first spokes respectively, and the two first extension arms extending from different edges of the first main body.

[0008] Furthermore, the first shielding member has a plurality of first extension arms that extend from different edges of the first body portion and are completely staggered along the extension length of the first body portion.

[0009] Furthermore, the first grounding plate has at least one first spoke and a plurality of second spokes. The first spoke simultaneously contacts a plurality of first outer shielding surfaces located in the first column. Each second spoke is fixed to a corresponding first outer shielding surface located in the first column. Each second spoke is cross-connected to the first spoke. The clearance area is a notch. At least one second spoke has two adjacent notches, and the two notches are located on both sides of the first spoke and extend along the upper limit of the second spoke. The first spoke has a plurality of through holes arranged along its extension direction. The insulating body has a plurality of protrusions, and each protrusion is fixed in a corresponding through hole.

[0010] Furthermore, the first grounding plate has at least one first spoke and a plurality of second spokes, the first spokes simultaneously contacting a plurality of first outer shielding surfaces located in the first column, each second spoke being fixed to a corresponding first outer shielding surface located in the first column, each second spoke being intersected with the first spoke, and at least one first extension arm being disposed adjacent to the first spoke and located at the side edge of the first spoke along the upper limit of the extension length of the second spoke.

[0011] Furthermore, the first spoke has an extension section that extends beyond the side edge of a corresponding second spoke and forms a free end. The extension section has a through hole, and the insulating body has a protrusion that is fixed inside the through hole.

[0012] Furthermore, the insulating body has a first side and a second side disposed opposite to each other in its thickness direction, a plurality of first receiving grooves are recessed from the first side of the insulating body toward the second side and arranged along the column direction of the first column, each first terminal assembly is received in a corresponding first receiving groove and the first outer shielding surface is exposed on the first side; the first grounding plate is embedded in the insulating body from the first side toward the second side, the first grounding plate has a first plate surface that contacts the plurality of first outer shielding surfaces of the first column and a second plate surface disposed opposite to the first plate surface in its thickness direction, the second plate surface not exceeding the first side in its orientation direction.

[0013] Furthermore, the electrical connector also includes a plurality of second terminal assemblies fixed to the insulating body. The plurality of second terminal assemblies are arranged in a second column parallel to the first column. Each second terminal assembly includes two second terminals, a second insulating block fixing the two second terminals, and a third shield and a fourth shield that are in contact with each other. The third shield has a second main body and at least one second extension arm extending from the second main body. The fourth shield has a second inner shield surface and a second outer shield surface disposed opposite to each other in its thickness direction. The second inner shield surface and the second main body together form a second shield space. The second insulating block and the two second terminals are located in the second shield space. The second extension arm is fixed to the second outer shield surface. The insulating body is provided with at least one recessed area corresponding to the second extension arm. The recessed area yields the corresponding second extension arm.

[0014] Furthermore, the insulating body has a first side and a second side arranged opposite to each other in its thickness direction. A plurality of first receiving grooves are recessed from the first side toward the second side and arranged along the column direction. A plurality of second receiving grooves are recessed from the second side toward the first side and arranged along the column direction. Each first receiving groove receives a corresponding first terminal assembly, and each second receiving groove receives a corresponding second terminal assembly. The recessed area is formed by recessing from the wall surface of the corresponding second receiving groove. A first spacing portion is provided between two adjacent first receiving grooves, and a second spacing portion is provided between two adjacent second receiving grooves. The plurality of first terminal assemblies and the plurality of second terminal assemblies are offset from each other in the column direction, and the plurality of first spacing portions and the plurality of second spacing portions are completely staggered along the column direction.

[0015] Furthermore, the electrical connector is used for mating with a mating connector along a mating direction, wherein the mating connector has at least two mating terminals and an insulating cover that covers and fixes the two mating terminals, the insulating cover having at least one support portion for supporting the mating terminals; a portion of the first shielding member or a portion of the second shielding member surrounds the first contact portion of the first terminal and has a recessed clearance groove, the contact surface of the first contact portion facing the clearance groove, the clearance groove being used to avoid the support portion.

[0016] Compared with the prior art, the electrical connector provided by the present invention has the following beneficial effects: The first extension arm is fixed to the first outer shielding surface of the second shielding component, thus achieving mutual fixation between the first and second shielding components. This eliminates the need for fixing holes in either the first or second shielding component, reducing the interference of external interference signals entering the first shielding space and causing interference to the first terminal, resulting in excellent shielding performance of the electrical connector. Simultaneously, the first grounding plate connects multiple second shielding components into a unified grounding shielding structure, further improving the shielding effect of the electrical connector. Furthermore, the provision of a clearance area prevents the thickness of the first extension arm and the first grounding plate from overlapping, thereby reducing the overall thickness of the electrical connector. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an electrical connector system according to an embodiment of the present invention; Figure 2 This is an exploded perspective view of the electrical connector according to an embodiment of the present invention; Figure 3 This is a front view of the docking side of an electrical module according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of an electrical module according to an embodiment of the present invention; Figure 5 This is a three-dimensional schematic diagram of an electrical module according to an embodiment of the present invention from one perspective; Figure 6 This is a partially exploded view of an electrical module according to an embodiment of the present invention; Figure 7 This is an exploded view of the first grounding plate and the first terminal assembly of the first column according to an embodiment of the present invention; Figure 8 This is a three-dimensional schematic diagram of an electrical module according to an embodiment of the present invention from another perspective; Figure 9 This is another partially exploded schematic diagram of an electrical module according to an embodiment of the present invention; Figure 10 This is an exploded view of the second grounding plate and the second terminal assembly of the second column according to an embodiment of the present invention; Figure 11 This is an exploded view of the docking connector according to an embodiment of the present invention; Figure 12 This is a front view of the mating side of the connector according to an embodiment of the present invention; Figure 13 This is a partial perspective sectional view of the first terminal assembly and the docking assembly after docking is completed according to an embodiment of the present invention; Figure 14 This is a partial cross-sectional plan view of the first terminal assembly and the docking assembly after docking is completed according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the accompanying drawings for the specific implementation methods: Detailed Implementation

[0019] To facilitate a better understanding of the purpose, structure, features, and effects of this invention, the invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0020] Please see Figure 1 This is an embodiment of the electrical connector 100 system provided by the present invention, which includes an electrical connector 100, a mating connector 200 connected to the electrical connector 100, a first electrical element electrically connected to the electrical connector 100, and a second electrical element electrically connected to the mating connector 200. In this embodiment, the first electrical element is a first substrate 8, and the second electrical element is a second substrate 9. Of course, in other embodiments, the first electrical element and the second electrical element may both be cables, or the first electrical element may be the first substrate 8 and the second electrical element may be a cable, or the first electrical element may be a cable and the second electrical element may be the second substrate 9. Of course, the first electrical element and the second electrical element may also be other elements, as long as they can be electrically connected to the corresponding electrical connector 100 or the mating connector 200 to transmit corresponding signals, and are not limited here.

[0021] Please see Figure 2 This is an embodiment of the present invention providing an electrical connector 100 for mating connectors 200 to mate with each other along a mating direction and connect to the corresponding first electrical component. The electrical connector 100 includes an insulating housing 1, multiple electrical modules 2, and two retaining plates 3. The insulating housing 1 also includes two guide insertion holes 11. The multiple electrical modules 2 are arranged side-by-side and fixed to the insulating housing 1, and the multiple electrical modules 2 are also mutually fixed and positioned by the two retaining plates 3. The mating side of the electrical connector 100 is used for mating of the mating connectors 200, and the mounting side of the electrical connector 100 is used for connection to the first electrical component.

[0022] Please see Figure 3 , Figure 5 , Figure 8 and Figure 9Each electrical module 2 includes an insulating body 21, a plurality of first terminal assemblies 22, a plurality of second terminal assemblies 23, a first grounding plate 24, and a second grounding plate 25. The plurality of first terminal assemblies 22 are fixed to the insulating body 21 and arranged in a first column, and the plurality of second terminal assemblies 23 are fixed to the insulating body 21 and arranged in a second column. The insulating body 21 has a first side 211 and a second side 212 disposed opposite to each other in its thickness direction. A plurality of first receiving grooves 213 are recessed from the first side 211 of the insulating body 21 towards the second side 212 and arranged along the column direction of the first column. Each first terminal assembly 22 is received in a corresponding first receiving groove 213. A plurality of second receiving grooves 215 are recessed from the second side 212 of the insulating body 21 towards the first side 211 and arranged along the column direction of the second column. Each second terminal assembly 23 is received in a corresponding second receiving groove 215. The first grounding piece 24 is laterally fixed to the insulating body 21 from the first side 211, and the second grounding piece 25 is laterally fixed to the insulating body 21 from the second side 212. In this embodiment, a plurality of first terminal assemblies 22 and a plurality of second terminal assemblies 23 are assembled and housed in the insulating body 21 from the first side 211 and the second side 212, respectively, so that one insulating body 21 can fix two rows of terminal assemblies. The first terminal assemblies 22 in the first row and the second terminal assemblies 23 in the second row are limited and stopped by the stop wall 218 in the middle of the insulating body 21. Compared with each insulating body 21 fixing only one row of terminal assemblies, in this embodiment, the two rows of terminal assemblies can be stopped by both sides of one stop wall 218, instead of two stop walls 218 of two insulating bodies stopping two rows of terminal assemblies respectively. The present invention can reduce the thickness of one stop wall 218, thereby reducing production costs and effectively reducing the size of the electrical connector 100 in the arrangement direction of the plurality of electrical modules 2.

[0023] Please see Figures 3 to 7Each of the first terminal assemblies 22 is housed in a corresponding first receiving groove 213. A first grounding plate 24 is embedded in the insulating body 21 from the first side 211 toward the second side 212. The first grounding plate 24 has a first plate surface 245 and a second plate surface 246 arranged oppositely along its thickness direction. The first plate surface 245 contacts the plurality of first terminal assemblies 22 in the first column, and the second plate surface 246 does not extend beyond the first side 211 along its orientation direction. Since the first receiving groove 213 is recessed from the first side 211, it facilitates the lateral assembly and housing of the first terminal assemblies 22 into the insulating body 21. Simultaneously, the first grounding plate 24 is embedded in the insulating body 21, and the second plate surface 246 does not extend beyond the first side 211, preventing the thickness of the first grounding plate 24 from overlapping with the thickness of the insulating body 21. This reduces the thickness of the electrical connector 100, facilitating its miniaturization design. Similarly, each of the second terminal assemblies 23 is housed in a corresponding second receiving slot 215, and the second grounding plate 25 is embedded in the insulating body 21 from the second side 212 toward the first side 211. The second grounding plate 25 has a third plate surface and a fourth plate surface arranged opposite to each other along its thickness direction. The third plate surface contacts the plurality of second terminal assemblies 7b in the second column, and the fourth plate surface does not extend beyond the second side 212 along its orientation direction. This facilitates the lateral assembly and housing of the second terminal assemblies 23 into the insulating body 21, and avoids the thickness of the second grounding plate 25 from overlapping with the thickness of the insulating body 21, thereby reducing the thickness of the electrical connector 100.

[0024] Please see Figures 5 to 7Each of the first terminal assemblies 22 includes two first terminals 221, a first insulating block 222 fixing the two first terminals 221, and a first shielding member 223 and a second shielding member 224 in contact with each other. Specifically, the first shielding member 223 has a first main body portion 2231 and a plurality of first extension arms 2232 extending from the first main body portion 2231. The second shielding member 224 has a first inner shielding surface 2242 and a first outer shielding surface 2241 arranged opposite to each other in its thickness direction. The first inner shielding surface 2242 and the first main body portion 2231 together form a first shielding space. The first outer shielding surface 2241 is in contact with the first plate surface 245 of the first grounding plate 24. The first insulating block 222 and the two first terminals 221 are located within the first shielding space. The first outer shielding surface 2241 is exposed on the first side 211. The first extension arms 2232 are fixed to the first outer shielding surface 2241. The first grounding plate 24 is fixed to the plurality of first outer shielding surfaces 2241 located in the first column. Each second terminal assembly 23 includes two second terminals 231, a second insulating block 232 fixing the two second terminals 231, and a third shield 233 and a fourth shield 234 in contact with each other. The third shield 233 has a second main body 2331 and a plurality of second extension arms 2332 extending from the second main body 2331. The fourth shield 234 has a second inner shield surface 2342 and a second outer shield surface 2341 arranged opposite to each other in its thickness direction. The second inner shield surface 2342 and the second main body 2331 together form a second shield space. The second outer shield surface 2341 is in contact with the third plate surface of the second grounding plate 25. The second insulating block 232 and the two second terminals 231 are located in the second shield space. The second extension arms 2332 are fixed to the second outer shield surface 2341. The second grounding plate 25 is fixed to the plurality of third shields 233 located in the second column. It should be noted that in this embodiment, both the first shielding member 223 and the second shielding member 224 are U-shaped structures, assembled together to form a first shielding space. In other embodiments, the first shielding member 223 and the second shielding member 224 can be other shapes. For example, the first shielding member 223 can be a U-shaped structure and the second shielding member 224 can be a flat plate structure, or both the first shielding member 223 and the second shielding member 224 can be L-shaped structures. Similarly, the third shielding member 233 and the fourth shielding member 234 can also be other shapes, which will not be elaborated here.It should be noted that in this embodiment, the first shielding member 223 has multiple first extension arms 2232, and the third shielding member 233 also has multiple second extension arms 2332. In other embodiments, as long as the first shielding member 223 has only one first extension arm 2232, and the third shielding member 233 has only one second extension arm 2332, it is sufficient that the first shielding member 223 and the second shielding member 224 are fixed to each other, and the third shielding member 233 and the fourth shielding member 234 are fixed to each other. Furthermore, the first extension arm 2232 and the second extension arm 2332 can be fixed to the first outer shielding surface 2241 and the second outer shielding surface 2341 respectively by welding (e.g., spot welding), or they can be directly pressed and fixed to the first outer shielding surface 2241 and the second outer shielding surface 2341 respectively. This is not limited here.

[0025] It should be noted that the first insulating block 222 in this embodiment includes a first injection molded part 2221 and a second injection molded part 2222. The first injection molded part 2221 is first molded to cover the outer periphery of the two first terminals 221, and then the second injection molded part 2222 is molded to cover the outer periphery of the first injection molded part 2221 and the two first terminals 221. When the second injection molded part 2222 is injection molded, the first injection molded part 2221 provides a fixed position for the mold. Therefore, after removing the mold, unnecessary notches can be avoided in the first insulating block 222, preventing unnecessary parts of the first terminals 221 from being exposed to the air medium, thus reducing impedance fluctuations of the first terminals 221. Similarly, the second insulating block 232 can also be formed by two injection molded parts. Of course, in other embodiments, the first insulating block 222 and the second insulating block 232 can also be formed by a single injection molding process, which is not limited here.

[0026] Please see Figure 1 and Figure 7The first terminal 221 has a first contact portion 2211, a first conductive portion 2213, and a first connecting portion 2212 connecting the first contact portion 2211 and the first conductive portion 2213. The second terminal 231 has a second contact portion 2311, a second conductive portion 2313, and a second connecting portion 2312 connecting the second contact portion 2311 and the second conductive portion 2313. Both the first contact portion 2211 and the second contact portion 2311 are used to mate with the mating connector 200, and both the first conductive portion 2213 and the second conductive portion 2313 are used to electrically connect with a first electrical element. In this embodiment, the first electrical element is the first substrate 8, and both the first conductive portion 2213 and the second conductive portion 2313 are used to be soldered to the surface of the first substrate 8 using solder balls, thereby improving the coplanarity of the first conductive portion 2213 and the second conductive portion 2313 in the electrical connector 100. Of course, in other embodiments, the first conductive portion 2213 and the second conductive portion 2313 may also be fisheye-shaped ends (not shown) or plug-in type conductive portions (not shown) to be inserted into the plug-in holes (not shown) of the first substrate 8. It should be noted that, among the plurality of first terminal assemblies 22, a portion of the two first terminals 221 within the first terminal assembly 22 may be configured as two signal terminals arranged to form a differential pair, and another portion of the two first terminals 221 within the first terminal assembly 22 may be configured as two power terminals for transmitting power. Of course, in other embodiments, the signals transmitted by the two first terminals 221 in each first terminal assembly 22 can be configured according to actual needs, and are not limited here. Similarly, among the plurality of second terminal assemblies 23, the signals transmitted by the two second terminals 231 in each second terminal assembly 23 can be configured according to actual needs, for example, as two signal terminals arranged to form a differential pair, or two power terminals for transmitting power, or terminals for transmitting other signals, and are not limited here. Furthermore, a portion of the first shielding member 223 surrounds the first contact portion 2211 and has a recessed clearance groove 2233, with the contact surface of the first contact portion 2211 facing the clearance groove 2233. In other embodiments, a portion of the second shielding member 224 may surround the first contact portion 2211 and have a recessed clearance groove 2233. Correspondingly, a portion of the third shielding member 233 or a portion of the fourth shielding member 234 may surround the second contact portion 2311 and have a recessed clearance groove 2233. The clearance groove 2233 is used to avoid certain components of the mating connector 200.

[0027] Please see Figures 5 to 7The first grounding plate 24 is provided with a plurality of clearance areas 241, which are located at the corresponding first extension arms 2232. A first direction is defined perpendicular to the thickness direction of the first grounding plate 24. The projection portions of the first grounding plate 24 and the first extension arms 2232 located in the clearance areas 241 overlap along the first direction. Thus, by fixing the first extension arms 2232 to the first outer shielding surface 2241 of the second shielding member 224, mutual fixation between the first shielding member 223 and the second shielding member 224 can be achieved without setting fixing holes in the first shielding member 223 or the second shielding member 224, reducing the interference of external interference signals entering the first shielding space and causing interference to the first terminal 221. Furthermore, the first grounding plate 24 can conduct multiple second shielding members 224 into a whole grounding shielding structure, resulting in a better shielding effect of the electrical connector 100. By setting the clearance areas 241, the thickness of the first extension arms 2232 and the first grounding plate 24 is avoided from overlapping, thereby reducing the thickness of the electrical connector 100. It should be noted that in this embodiment, the clearance area 241 is a region that is openly disposed through the first grounding piece 24 along the thickness direction of the first grounding piece 24. However, in other embodiments, the clearance area 241 may also be a region that is recessed from one side of the first grounding piece 24 and does not penetrate the first grounding piece 24. For example, if the thickness of the first grounding piece 24 is greater than the thickness of the first extension arm 2232, the clearance area 241 is recessed from the surface of the first grounding piece 24 corresponding to the thickness of the first extension arm 2232.

[0028] Please see Figures 5 to 7The first grounding plate 24 has a plurality of first spokes 242 and a plurality of second spokes 243. The first spokes 242 simultaneously contact a plurality of first outer shielding surfaces 2241 located in the first column. Each second spoke 243 is fixed to a corresponding first outer shielding surface 2241 located in the first column, and each second spoke 243 is intersectingly connected to the first spokes 242. The first spokes 242 connect a plurality of second shielding elements 224 together, and the second spokes 243 increase the contact area between the first grounding plate 24 and the second shielding elements 224. The first shielding element 223 has a plurality of first extension arms 2232, which extend from different edges of the first main body portion 2231 and are completely staggered along the extension length of the first main body portion 2231. Compared to the previous embodiment where multiple first extension arms 2232 were not completely staggered, resulting in the first extension arms 2232 on different sides facing each other, this embodiment allows the first main body 2231 and the second shield 224 to be fixed over a larger length range by multiple staggered first extension arms 2232, and the corresponding clearance areas 241 can be staggered, thereby avoiding the reduction in strength at a certain position of the first grounding piece 24 after the clearance areas 241 are facing each other. This embodiment can reduce the risk of the first grounding piece 24 breaking. In this embodiment, the clearance area 241 is set in the shape of a notch. In other embodiments, the clearance area 241 may not be set in the shape of a notch. For example, it may be recessed inward from the side edge of the second spoke 243, so that the overall width of the second spoke 243 is reduced, so that the clearance area 241 is formed on the side edge of the second spoke 243; or, the clearance area 241 may be a hole of limited size set on the plane of the first grounding piece 24.

[0029] Furthermore, the plurality of first extension arms 2232 includes two first extension arms 2232 arranged adjacent to each other along the length direction of the first main body portion 2231. The two first extension arms 2232 are respectively adjacent to the two side edges of the first spoke 242, and the two first extension arms 2232 extend from different edges of the first main body portion 2231. Thus, the two first extension arms 2232 extending from different edges near the two side edges of the first spoke 242 can limit and stop the first grounding plate 24 near the first spoke 242, which can better prevent the first spoke 242 from shifting, increase the stability between the first grounding plate 24 and the plurality of second shielding members 224, prevent the first spoke 242 from detaching from the plurality of second shielding members 224 and affecting the conductivity between the plurality of second shielding members 224, and ensure the shielding effect of the electrical connector 100.

[0030] Please see Figures 5 to 7 The clearance area 241 is a notch. Two adjacent notches are provided on one of the second spokes 243, and the two notches are located on both sides of the first spoke 242, extending along the upper limit of the second spoke 243 to the first spoke 242. The first spoke 242 has a plurality of through holes 244 arranged along its extension direction. The insulating body 21 has a plurality of protrusions 219, each protrusion 219 being fixed within a corresponding through hole 244. Compared to not providing a recess in the clearance area 241, this invention reduces the area of ​​the clearance area 241 of the first grounding piece 24, increases the fixed area of ​​the first grounding piece 24 and the first outer shielding surface 2241, and better limits the mutual positioning of the first grounding piece 24 and the first extension arm 2232 by extending into the recess, especially limiting the first spoke 242 to reduce displacement of the first spoke 242; and further prevents displacement of the first spoke 242 by the cooperation and fixing of the through hole 244 and the protrusion 219, increasing the positional stability between the first grounding piece 24, the first shielding member 223, and the second shielding member 224. In this embodiment, each of the first extension arms 2232 is disposed adjacent to the first spoke 242 and located at the side edge of the first spoke 242 along the upper limit of the extension length of the second spoke 243. Of course, in other embodiments, a portion of the first extension arms 2232 may be disposed adjacent to the first spoke 242 and located at the side edge of the first spoke 242 along the upper limit of the extension length of the second spoke 243. This invention does not limit all the first extension arms 2232 to this arrangement. By limiting the first extension arms 2232 to the side edge of the first spoke 242, the risk of displacement of the first spoke 242 affecting the first grounding plate 24's conduction of the multiple second shields 224 is reduced. Of course, in other embodiments, the first extension arm 2232 may also be disposed on the second spoke 243 and not adjacent to the side edge of the first spoke 242.

[0031] Please see Figures 5 to 7The first spoke 242 has an extension 2421 that extends beyond the side edge of a corresponding second spoke 243 and forms a free end. The extension 2421 has a through hole 244, and a protrusion 219 of the insulating body 21 is fixed within the through hole 244 of the extension 2421. Compared to a design without the extension 2421, this embodiment allows the second spoke 243 closest to the extension 2421 to be closer to the first outer shielding surface 2241, preventing the second spoke 243 from tilting up and failing to contact the corresponding first outer shielding surface 2241.

[0032] Please see Figures 8 to 10In the second terminal assembly 23, the third shield 233 has a second main body 2331 and a plurality of second extension arms 2332 extending from the second main body 2331. The fourth shield 234 has a second inner shield surface 2342 and a second outer shield surface 2341 arranged opposite to each other in its thickness direction. The second inner shield surface 2342 and the second main body 2331 together form a second shield space. The second insulating block 232 and the two second terminals 231 are located in the second shield space. The second extension arms 2332 are fixed to the second outer shield surface 2341. The insulating body 21 is provided with a plurality of recessed areas 217 corresponding to the plurality of second extension arms 2332. Each recessed area 217 gives way to the corresponding second extension arm 2332. By recessing the area 217 to accommodate the second extension arm 2332, the combined thickness of the insulating body 21 and the second extension arm 2332 is reduced, further decreasing the thickness of the electrical connector 100. This also increases the positional stability between the fourth shield 234 and the insulating body 21, reducing the risk of the fourth shield 234 detaching from the insulating body 21. Furthermore, each first receiving groove 213 accommodates a corresponding first terminal assembly 22, and each second receiving groove 215 accommodates a corresponding second terminal assembly 23. The recessed area 217 is formed by recessing into the wall of the corresponding second receiving groove 215. A first spacing portion 214 is provided between two adjacent first receiving grooves 213, and a second spacing portion 216 is provided between two adjacent second receiving grooves 215. The plurality of first terminal assemblies 22 and the plurality of second terminal assemblies 23 are offset relative to each other in the column direction, and the plurality of first spacing portions 214 and the plurality of second spacing portions 216 are completely staggered along the column direction. In contrast, when the first interval 214 and the second interval 216 are misaligned, causing the first receiving groove 213 and the second receiving groove 215 to be completely aligned along the thickness direction of the insulating body 21, and the first interval 214 and the second interval 216 to be completely aligned along the thickness direction of the insulating body 21, the thickness distribution of the insulating body 21 will vary greatly. This would make the insulating body 21 prone to breakage at the first receiving groove 213. In this embodiment, the first receiving groove 213 and the second interval 216 are aligned, and the second receiving groove 215 and the first interval 214 are aligned. This reduces the variation in the material thickness distribution of the insulating body 21, preventing the insulating body 21 from breaking at the first receiving groove 213 or the second receiving groove 215. It also avoids uneven heat dissipation caused by uneven material thickness of the insulating body 21, reducing the risk of deformation of the insulating body 21 due to uneven heat dissipation during molding.Furthermore, in this embodiment, the first terminal 221 of the first column forms multiple terminal pairs, and the second terminal 231 of the second column forms multiple terminal pairs. The terminal pairs of the first column and the terminal pairs of the second column are staggered in the column direction. That is, when viewed from the first side 211 of the insulating body 21 towards the second side 212, the projections of the terminal pairs of the first column and the terminal pairs of the second column do not overlap at all, thereby reducing signal interference between the two columns of terminal pairs.

[0033] Please see Figures 11 to 12 The docking connector 200 includes an insulating base 4, multiple docking components 5, multiple conductive elements 6, and two guide posts. The multiple docking components 5 are fixed to the insulating base 4 and arranged in multiple rows. Each row of docking components 5 is in contact with a corresponding conductive element 6. The two guide posts are fixed to the insulating base 4, and each guide post is inserted into a corresponding guide insertion hole 11. After the electrical connector 100 and the docking connector 200 are docked, the insulating base 4 is aligned with the insulating housing 1, each docking component 5 is aligned with a corresponding first terminal assembly 22 or second terminal assembly 23, and the two guide posts are respectively inserted and fixed into the two guide insertion holes 11. The docking side of the docking connector 200 is used for docking with the electrical connector 100, and the mounting side of the docking connector 200 is used for connecting the second electrical component.

[0034] Specifically, the two guide posts include a first guide post 7a and a second guide post 7b. The length of the first guide post 7a is greater than the length of the second guide post 7b. During the docking process of the electrical connector 100 and the mating connector 200, the first guide post 7a first engages with the corresponding guide insertion hole 11 for initial guiding and positioning, and then the second guide post 7b engages with the corresponding guide insertion hole 11 for accurate positioning. Since the first guide post 7a is used for initial positioning of the electrical connector 100 and the mating connector 200, it has a greater risk of damage, such as breakage or deformation. The second guide post 7b, on the other hand, performs further positioning after the first guide post 7a has been initially positioned, and therefore has a lower risk of damage. In this embodiment, the material strength of the first guide post 7a is greater than that of the second guide post 7b. For example, the first guide post 7a is made of metal, and the second guide post 7b is made of plastic. This ensures that the two guide posts are not easily damaged while also reducing the production cost of the second guide post 7b.

[0035] Please see Figures 11 to 12Each of the aforementioned docking components 5 includes an insulating cover 52, two docking terminals 51 fixed to the insulating cover 52, and a docking shield 53. The two docking terminals 51 are arranged to form a terminal pair, and the docking shield 53 covers the insulating cover 52 and the two docking terminals 51. Corresponding to the electrical connector 100, the plurality of docking components 5 of the docking connector 200 are also arranged in multiple columns, and the docking shield 53 of the plurality of docking components 5 in each column is in contact with a corresponding conductive element 6. The docking terminals 51 of adjacent columns are staggered in the column direction to reduce signal interference between adjacent columns of docking terminals 51. In this embodiment, after the electrical connector 100 and the docking connector 200 are docked, the docking terminals 51 are respectively connected to the corresponding first terminal 221 or second terminal 231. The first shielding member 223 and the second shielding member 224 are assembled together and connected to the corresponding docking shielding body 53, and the first shielding member 223 and the second shielding member 224 are housed within the corresponding docking shielding body 53. The third shielding member 233 and the fourth shielding member 234 are assembled together and connected to the corresponding docking shielding body 53, and the third shielding member 233 and the fourth shielding member 234 are housed within the docking shielding body 53. The docking shielding body 53 has an outwardly turned guide portion 531 at its docking edge, which serves as a guide. In other embodiments, the docking shielding body 53 may also be housed within the first shielding space or the second shielding space. Further, as... Figures 13 to 14The insulating cover 52 further includes two support portions 521, which support the contact portions of the mating terminals 51, providing support force to the contact portions of the mating terminals 51, so that the mating terminals 51 can make stable contact with the first terminal 221 or the second terminal 231, and reduce the elastic fatigue of the contact portions of the mating terminals 51. The contact surface of the first contact portion 2211 faces the relief groove 2233, which is used to avoid the support portion 521. That is, after the electrical connector 100 and the mating connector 200 are mated, the support portion 521 is located in the relief groove 2233. Thus, through the relief groove 2233, the support portion 521 can be effectively accommodated without increasing the size of the first shield 223 or the second shield 224, preventing the support portion 521 from colliding with the first shield 223 or the second shield 224, and reducing the volume of the electrical connector 100. In this embodiment, the insulating covering 52 is provided with two support portions 521 corresponding to the two mating terminals 51. In other embodiments, the insulating covering 52 may also be provided with one support portion 521, which simultaneously supports the contact portions of the two mating terminals 51. It should be noted that... Figure 13 The lieutenant general cut open a portion of the docking shield 53 to observe the state of the support 521 located in the clearance groove 2233.

[0036] In summary, the electrical connector 100 provided by the present invention has the following beneficial effects: 1. The present invention can achieve mutual fixation between the first shield 223 and the second shield 224 without setting fixing holes in the first shield 223 or the second shield 224, thereby reducing the interference of external interference signals entering the first shield space and causing interference to the first terminal 221; by setting the clearance area 241, the thickness of the first extension arm 2232 and the first grounding piece 24 is avoided from being superimposed, thereby reducing the thickness of the electrical connector 100.

[0037] 2. By limiting the first extension arm 2232 to the side edge of the first spoke 242, the risk of displacement of the first spoke 242 affecting the first grounding plate 24's conduction of multiple second shielding components 224 is reduced.

[0038] 3. By setting the extension section 2421, the second spoke 243 can be prevented from tilting up and failing to contact the corresponding first outer shielding surface 2241.

[0039] 4. By allowing the recessed area 217 to accommodate the second extension arm 2332, the combined thickness of the insulating body 21 and the second extension arm 2332 can be reduced, further reducing the thickness of the electrical connector 100. It can also increase the positional stability between the fourth shield 234 and the insulating body 21, reducing the risk of the fourth shield 234 detaching from the insulating body 21.

[0040] 5. Through the avoidance groove 2233, the support part 521 can be effectively accommodated without increasing the size of the first shield 223 or the second shield 224, which can prevent the support part 521 from colliding with the first shield 223 or the second shield 224, and can reduce the volume of the electrical connector 100.

[0041] The above detailed description is only an illustration of a preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. An electrical connector, characterized in that, include: At least one insulating body; Multiple first terminal assemblies are fixed to the insulating body and arranged in a first column. Each first terminal assembly includes two first terminals, a first insulating block that fixes the two first terminals, and a first shielding member and a second shielding member that are in contact with each other. The first shielding member has a first main body and at least one first extension arm extending from the first main body. The second shielding member has a first inner shielding surface and a first outer shielding surface that are disposed opposite to each other in its thickness direction. The first inner shielding surface and the first main body together form a first shielding space. The first insulating block and the two first terminals are located in the first shielding space. The first extension arm is fixed to the first outer shielding surface. A first grounding plate is fixed to a plurality of first outer shielding surfaces located in the first column, and the first grounding plate has at least one clearance area that clearances a corresponding first extension arm. A first direction is defined perpendicular to the thickness direction of the first grounding plate. The projection of the first grounding plate and the first extension arm located in the clearance area overlaps along the first direction. The first extension arm is located in the corresponding clearance area such that the first grounding plate is confined within the first extension arm.

2. The electrical connector as claimed in claim 1, characterized in that, The first grounding plate has at least one first spoke and a plurality of second spokes. The first spokes are in contact with a plurality of first outer shielding surfaces located in the first column. Each second spoke is fixed to a corresponding first outer shielding surface located in the first column. Each second spoke is cross-connected to the first spoke. The first shielding member has two first extension arms arranged adjacent to each other along the length direction of the first main body portion. The two first extension arms are respectively adjacent to the two side edges of the first spoke and extend from different edges of the first main body portion.

3. The electrical connector as described in claim 1, characterized in that, The first shielding member has a plurality of first extension arms that extend from different edges of the first body portion and are completely staggered along the extension length of the first body portion.

4. The electrical connector as claimed in claim 1, characterized in that, The first grounding plate has at least one first spoke and a plurality of second spokes. The first spokes are in contact with a plurality of first outer shielding surfaces located in the first column. Each second spoke is fixed to a corresponding first outer shielding surface located in the first column. Each second spoke is cross-connected to the first spoke. The clearance area is a notch, and at least one of the second spokes has two adjacent notches, and the two notches are located on both sides of the first spoke and are located at the upper limit of the extension length of the second spoke. The first spoke has a plurality of through holes arranged along its extension direction, and the insulating body has a plurality of protrusions, each of which is fixed in a corresponding through hole.

5. The electrical connector as claimed in claim 1, characterized in that, The first grounding plate has at least one first spoke and a plurality of second spokes. The first spokes are in contact with a plurality of first outer shielding surfaces located in the first column. Each second spoke is fixed to a corresponding first outer shielding surface located in the first column. Each second spoke is intersected with the first spoke. At least one first extension arm is disposed adjacent to the first spoke and located at the side edge of the first spoke along the upper limit of the extension length of the second spoke.

6. The electrical connector as claimed in claim 5, characterized in that, The first spoke has an extension that extends beyond the side edge of a corresponding second spoke and forms a free end. The extension has a through hole, and the insulating body has a protrusion that is fixed inside the through hole.

7. The electrical connector as claimed in claim 1, characterized in that, The insulating body has a first side and a second side disposed opposite to each other in its thickness direction. A plurality of first receiving grooves are recessed from the first side of the insulating body toward the second side and arranged along the column direction of the first column. Each first terminal assembly is received in a corresponding first receiving groove and the first outer shielding surface is exposed on the first side. The first grounding plate is embedded in the insulating body from the first side toward the second side. The first grounding plate has a first plate surface that contacts the plurality of first outer shielding surfaces of the first column and a second plate surface that is disposed opposite to the first plate surface along its thickness direction. The second plate surface does not extend beyond the first side along its orientation direction.

8. The electrical connector as claimed in claim 1, characterized in that, The electrical connector further includes a plurality of second terminal assemblies fixed to the insulating body. The plurality of second terminal assemblies are arranged in a second column parallel to the first column. Each second terminal assembly includes two second terminals, a second insulating block fixing the two second terminals, and a third shield and a fourth shield that are in contact with each other. The third shield has a second main body and at least one second extension arm extending from the second main body. The fourth shield has a second inner shield surface and a second outer shield surface disposed opposite to each other in its thickness direction. The second inner shield surface and the second main body together form a second shield space. The second insulating block and the two second terminals are located in the second shield space. The second extension arm is fixed to the second outer shield surface. The insulating body is provided with at least one recessed area corresponding to the second extension arm. The recessed area gives way to the corresponding second extension arm.

9. The electrical connector as claimed in claim 8, characterized in that, The insulating body has a first side and a second side arranged opposite to each other in its thickness direction. A plurality of first receiving grooves are recessed from the first side toward the second side and arranged in a column direction. A plurality of second receiving grooves are recessed from the second side toward the first side and arranged in the column direction. Each first receiving groove receives a corresponding first terminal assembly, and each second receiving groove receives a corresponding second terminal assembly. The recessed area is formed by recessing from the wall surface of the corresponding second receiving groove. A first spacing portion is provided between two adjacent first receiving grooves, and a second spacing portion is provided between two adjacent second receiving grooves. The plurality of first terminal assemblies and the plurality of second terminal assemblies are offset from each other in the column direction, and the plurality of first spacing portions and the plurality of second spacing portions are completely staggered along the column direction.

10. The electrical connector as claimed in claim 1, characterized in that, The electrical connector is used to allow a mating connector to be mated together along a mating direction, wherein the mating connector has at least two mating terminals and an insulating cover that covers and fixes the two mating terminals, and the insulating cover has at least one support portion for supporting the mating terminals; A portion of the first shielding member or a portion of the second shielding member surrounds the first contact portion of the first terminal and has a recessed clearance groove. The contact surface of the first contact portion faces the clearance groove, and the clearance groove is used to avoid the support portion.

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