Electric connector and electric connecting device group

Abstract

The invention discloses an electric connector and an electric connecting device group, the electric connector comprises a body, the body is formed by stacking a plurality of conductive metal plates, the stacking direction of the plurality of metal plates is perpendicular to the butt joint direction, each metal plate is provided with a plate surface and a side surface, two opposite hole walls of an accommodating hole are formed by the plate surfaces of the two metal plates, and the side surfaces of the two metal plates are opposite to each other. The other two opposite hole walls of the containing hole are formed by stacking side edge faces of a plurality of metal plates, and due to the fact that the two hole walls of the containing hole are formed by the plate faces of the metal plates, interference signals emitted by the signal terminals contained in the containing hole are not prone to penetrating out through the hole walls formed by the plate faces of the metal plates on the two faces, and meanwhile the interference signals emitted by the signal terminals contained in the containing hole are not prone to penetrating out. According to the utility model, the bonding size of the two adjacent metal plates is small, the flatness is good, gaps between the plate surfaces of the stacked metal plates are small, mutual interference caused by the fact that electromagnetic signals emitted between the signal terminals in the adjacent accommodating holes penetrate through the gaps is reduced, and meanwhile, external interference signals do not easily penetrate through the gaps to interfere with the signal terminals.

Description

Technical Field

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

[0002] The rapid evolution of data centers, 5G communications, and high-speed AI servers is continuously raising the performance requirements for electrical connectors, with a core focus on data transmission rate and signal integrity. Current mainstream electrical connectors are evolving towards transmission rates of 224Gbps and higher, while simultaneously requiring an increase in the number of terminals to meet high bandwidth demands. However, in high-frequency scenarios, crosstalk can easily occur between adjacent terminals, directly affecting signal transmission quality. To suppress crosstalk and ensure signal integrity, the industry has introduced more stringent standards for the shielding performance of electrical connectors, especially signal terminal pairs. An existing electrical connector, with application number CN201020663926.6, includes an insulating body 1 with a vertically penetrating groove 12. Multiple receiving tubes 11 are disposed within the groove 12, each tube at least partially connected to the groove 12. Multiple signal terminals 2 are respectively housed within the receiving tubes 11. Multiple shielding elements 3 are stacked layer by layer within the groove 12. Each shielding element 3 has multiple shielding holes 30 etched on it, corresponding to the number of receiving tubes 11. The portions between the shielding holes 30 form multiple grid-like ribs 31. The ribs 31 of each shielding element 3 are embedded within gaps 32 and correspondingly surround the periphery of the receiving tubes 11. The total thickness of the stacked shielding elements 3 is equal to the height of the gaps 32. In this way, the shielding elements 3 surround and isolate the signal terminals 2, thereby providing a shielding effect.

[0003] The above structure has the following problems: 1. The four-sided hole wall of each containment tube is formed by stacking multiple shielding holes along the vertical direction. Interference signals emitted by the signal terminals inside the stacked shielding holes can easily pass through the gaps between the four stacked shielding holes.

[0004] 2. The stacking direction of multiple shielding components is the same as the docking direction. Adjacent shielding components are attached to each other in the left-right and front-back directions. Because each shielding component has multiple shielding holes etched in the left-right and front-back directions corresponding to the number of receiving tubes, the attachment size of adjacent shielding components in the left-right and front-back directions is relatively large. It is difficult to ensure the flatness of the attachment between adjacent shielding components, which makes it easy to generate large gaps between the hole walls of the stacked shielding holes. Electromagnetic signals emitted between the signal terminals in adjacent receiving tubes can pass through the gaps and cause mutual interference. At the same time, external interference signals can also easily pass through the gaps and interfere with the signal terminals.

[0005] Therefore, it is necessary to design a new electrical connector and electrical connection device assembly to overcome the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an electrical connector and electrical connection device assembly that includes a body, which is formed by stacking a plurality of conductive metal plates to form at least one receiving hole. The metal plates have a plate surface and side surfaces. The receiving hole is formed by the plate surface on both sides of the hole, and the other two side surfaces are formed by stacking a plurality of side surfaces, thereby improving the shielding effect.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An electrical connector for mating with a mating device along a mating direction is characterized by comprising: a body formed by stacking a plurality of conductive metal plates to form at least one receiving hole, the stacking direction of the plurality of metal plates being perpendicular to the mating direction, the metal plates having a plate surface and side surfaces, two opposite holes of the receiving hole being formed by the plate surfaces of the two metal plates, and two other opposite holes of the receiving hole being formed by stacking the side surfaces of the plurality of metal plates; the receiving hole contains an insulator, and at least one signal terminal is disposed within the insulator.

[0008] Furthermore, the main body is provided with multiple docking structures in the docking direction, and the main body is connected to the docking device through the docking structures to form a common ground shield.

[0009] Furthermore, each receiving hole is surrounded by at least two mating structures.

[0010] Furthermore, the metal plate of the docking structure extends at least one contact arm along the docking direction.

[0011] Furthermore, a hook protrudes from the side edge of the contact arm for holding and securing during docking.

[0012] Furthermore, the metal sheet of the docking structure is recessed with at least one groove from the docking direction.

[0013] Furthermore, the docking structure is the wall of the hole that accommodates the hole.

[0014] Furthermore, the main body is provided with multiple receiving holes, which are arranged in multiple rows. The two receiving holes in two adjacent rows are staggered, and the docking device is a circuit board.

[0015] Furthermore, at least one guide plate is provided between the main body and the docking device. The guide plate is provided with elastic arms, which are distributed around the receiving hole and respectively dock with the main body and the docking device to form a common ground shield.

[0016] Furthermore, the body is provided with multiple receiving holes, which are arranged in rows along the left-right direction and in multiple rows along the front-back direction. The plurality of metal plates include a plurality of first plates and a plurality of second plate groups. Each second plate group includes a plurality of second plates stacked along the front-back direction. At least one first plate is located between the signal terminals of two adjacent rows of receiving holes, and a second plate group is located between the signal terminals of two adjacent receiving holes in the same row. The two hole walls opposite to each other in the front and back of the receiving hole are formed by the plate surfaces of the two first plates. The two hole walls opposite to each other in the left and right of the receiving hole are formed by the side surfaces of the two second plate groups. The plate surface of the first plate of the same receiving hole along the front-back direction is electrically connected to the plate surface of the second plate of the same receiving hole. The two second plate groups opposite to each other in the same receiving hole are separately arranged.

[0017] Furthermore, the length of the first plate in the left-right direction is greater than the length of the second plate, the same first plate includes the hole walls of multiple receiving holes in the same row, and the adjacent two second plate groups in the front-back direction are staggered.

[0018] Furthermore, the insulator includes a base and a protrusion connecting the base. The base is located within the receiving hole. Along the mating direction, a portion of the protrusion protrudes from the receiving hole. Along the contact direction of the signal terminal of the mating device and the signal terminal of the electrical connector, the protrusion is recessed relative to the base to form a mating space. The signal terminal includes a signal contact portion and a signal abutment portion. The signal contact portion is located outside the receiving hole, and the signal abutment portion is located inside the receiving hole. Both the signal contact portion and the signal abutment portion are exposed in the mating space.

[0019] Additionally, an electrical connection device assembly is characterized by comprising: mutually compatible electrical connectors and mating devices, wherein the mating device is a mating connector, and both the electrical connector and the mating device comprise: a body formed by stacking a plurality of conductive metal plates to form at least one receiving hole, wherein the stacking direction of the plurality of metal plates is perpendicular to the mating direction, the metal plates have a plate surface and side surfaces, two opposite hole walls of the receiving hole are formed by the plate surfaces of the two metal plates, and two other opposite hole walls of the receiving hole are formed by stacking the side surfaces of the plurality of metal plates; the receiving hole contains an insulator, and at least one signal terminal is provided within the insulator.

[0020] Furthermore, the main body is provided with multiple docking structures in the docking direction. When the electrical connector docks with the docking device, the main body of the electrical connector is connected to the main body of the docking device through the docking structure to form a common ground shield.

[0021] Furthermore, each receiving hole is surrounded by at least two mating structures.

[0022] Furthermore, the mating structure of the electrical connector is at least one contact arm extending from the metal plate along the mating direction; the mating structure of the mating device is at least one groove recessed in the metal plate along the mating direction, and when the electrical connector is mated with the mating device, the groove of the mating device accommodates the contact arm of the electrical connector.

[0023] Furthermore, the contact arm of the electrical connector has a hook protruding from its side edge, and the groove of the mating device has a protrusion. When the electrical connector is mated with the mating device, the hook of the electrical connector and the protrusion of the mating device hold and fix it in place.

[0024] Furthermore, the mating structure of the electrical connector is the wall of the receiving hole, and the mating structure of the mating device is a conductive element. When the electrical connector mates with the mating device, the conductive element of the mating device enters the receiving hole of the electrical connector and abuts against the wall of the receiving hole of the electrical connector.

[0025] Furthermore, the main body is provided with multiple receiving holes, which are arranged in multiple rows, with the two receiving holes in adjacent rows being staggered.

[0026] Furthermore, at least one guide plate is provided between the main body and the docking device. The guide plate is provided with elastic arms, which are distributed around the receiving hole and respectively dock with the main body and the docking device to form a common ground shield.

[0027] Furthermore, the insulator includes a base and a protrusion connecting the base. The base is located within a receiving hole. Along the mating direction, a portion of the protrusion protrudes from the receiving hole. Along the contact direction where the signal terminal of the mating device contacts the signal terminal of the electrical connector, the protrusion is recessed relative to the base to form a mating space. The signal terminal includes a signal contact portion and a signal abutment portion. The signal contact portion is located outside the receiving hole, and the signal abutment portion is located inside the receiving hole. Both the signal contact portion and the signal abutment portion are exposed in the mating space. When the electrical connector and the mating device are mated together, the protrusion of the electrical connector is inserted into the mating space of the mating device, and the protrusion of the mating device is inserted into the mating space of the electrical connector. The signal contact portion of the electrical connector abuts against the signal abutment portion of the mating device, and the signal abutment portion of the electrical connector abuts against the signal contact portion of the mating device.

[0028] Compared with the prior art, the electrical connector and electrical connection device assembly provided by the present invention have the following beneficial effects: The body is formed by stacking a plurality of conductive metal plates, and the body forms at least one receiving hole. The stacking direction of the plurality of metal plates is perpendicular to the docking direction. The metal plates have a plate surface and a side surface. The two opposite hole walls of the receiving hole are formed by the plate surfaces of the two metal plates. The other two opposite hole walls of the receiving hole are formed by stacking the side surfaces of the plurality of metal plates. Since the receiving hole has two hole walls formed by the plate surfaces of the plurality of metal plates, the interference signal emitted by the signal terminal housed in the receiving hole is not easy to pass through the hole walls formed by the plate surfaces of the metal plates.

[0029] The stacking direction of the multiple metal plates is perpendicular to the mating direction. Adjacent metal plates are bonded together in the left-right and up-down directions. The bonding dimension of two adjacent metal plates in the up-down direction is equivalent to the height of a receiving hole. Compared with the bonding dimension of the shielding component in the width direction in the prior art, the bonding dimension of two adjacent metal plates in the height direction is smaller. Therefore, the flatness of the bonding between two adjacent metal plates is better than that in the prior art. As a result, the gap between the surfaces of the stacked multiple metal plates is smaller. The mutual interference caused by electromagnetic signals emitted between signal terminals in adjacent receiving holes passing through the gap is reduced. At the same time, external interference signals are less likely to pass through the gap and interfere with the signal terminals. Attached Figure Description

[0030] Figure 1 This is a perspective view of the electrical connector and the mating connector before they are mated according to the first embodiment of the present invention; Figure 2 yes Figure 1 An exploded 3D view of the electrical connector and circuit board before they are connected. Figure 3 yes Figure 1 A three-dimensional exploded view of the main body; Figure 4 yes Figure 1 A schematic diagram showing the electrical connector and circuit board after being connected and cut along a plane defined by YZ. Figure 5 yes Figure 1 A schematic diagram showing the electrical connector and circuit board after being connected and cut along a plane defined by XZ; Figure 6 yes Figure 1 A schematic diagram showing the electrical connector and the mating connector after they are mated, cut along a plane defined by XZ. Figure 7 yes Figure 1 A schematic diagram of a plane section defined by the YZ leading edge of the electrical connector and the mating connector; Figure 8 yes Figure 7 A schematic diagram showing the electrical connector and the mating connector after they are mated, cut along a plane defined by YZ. Figure 9 This is a perspective view of the electrical connector and the mating connector before they are mated according to the second embodiment of the present invention; Figure 10 yes Figure 9 A three-dimensional view of the assembled conductive components and insulators; Figure 11 yes Figure 9 A schematic diagram showing the electrical connector and the mating connector after they are mated, cut along a plane defined by YZ. Figure 12 yes Figure 9 A schematic diagram showing the electrical connector and the mating connector after they are mated, cut along another plane defined by YZ.

[0031] Explanation of reference numerals in the accompanying drawings for the specific implementation methods: Electrical connector 100 200 docking connectors Circuit board 300 Ontology 1 Metal sheet 11 First board 11a Second board 11b Board 111 Side surface 112 Contact arm 113 Hook 1131 Groove 114 Projection 1141 Receiving hole 12 Insulator 2 Base 21 Protrusion 22 Docking Space P Conductive component 3 Main body 31 Shrapnel 32 33 cantilever Signal terminal 4 Signal contact part 41 Signal contact part 42 Signal holding part 43 Signal conductor 44 Conductor plate 5 Elastic arm 51 Plate 52 Detailed Implementation

[0032] 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.

[0033] like Figures 1 to 12 As shown, the electrical connector 100 and electrical connection device assembly of the present invention are defined in a front-back direction and in left-right and up-down directions perpendicular to the front-back direction. For ease of understanding of the accompanying drawings, the forward direction in the front-back direction is defined as the positive direction of the X-axis, the rightward direction in the left-right direction is defined as the positive direction of the Y-axis, and the upward direction in the up-down direction is defined as the positive direction of the Z-axis. It can be understood that the orientation positioning of the present invention is for better understanding of the relative positional relationships and directions of movement between the components. In actual use, the orientation positioning of the present invention can be adjusted according to the application environment. For example, the front and rear directions can be interchanged, the left and right directions can be interchanged, and similarly, the top and bottom directions can also be interchanged.

[0034] like Figure 1 and Figure 9 As shown, the electrical connection device assembly of the present invention includes an electrical connector 100, a mating connector 200, and an insulating housing (not shown) for housing the electrical connector 100 and the mating connector 200. The mating device includes the mating connector 200 and a circuit board 300. In this embodiment, the electrical connector 100 and the mating connector 200 are located between two circuit boards 300 in the vertical direction. The electrical connector 100 is used to solder downwards to one of the circuit boards 300, and the mating connector 200 is used to solder upwards to the other circuit board 300. The electrical connector 100 and the mating connector 200 are adapted to each other, and the mating connector 200 is electrically connected to the electrical connector 100 in the vertical direction. In other embodiments, the contact method between the electrical connector 100 and the mating connector 200 and the circuit board 300 can also be mutual abutment.

[0035] like Figures 1 to 8 The diagram shows an electrical connector 100, a mating connector 200, and an electrical connection device assembly according to a first embodiment of the present invention. Each of the electrical connector 100 and the mating connector 200 includes a body 1, a plurality of insulators 2, and a plurality of signal terminals 4. The plurality of insulators 2 are disposed on a body 1. In this embodiment, two signal terminals 4 are disposed on one insulator 2. In other embodiments, one or more signal terminals 4 may be disposed on one insulator 2.

[0036] like Figures 2 to 3 As shown, the body 1 is formed by stacking multiple conductive metal plates 11 to form multiple receiving holes 12. These receiving holes 12 are arranged in rows along the left-right direction and multiple rows along the front-back direction. Two receiving holes 12 in adjacent rows are staggered to reduce mutual interference signals emitted by signal terminals 4 in adjacent rows. In other embodiments, the body 1 has only one receiving hole 12. The stacking direction of the plurality of metal plates 11 is perpendicular to the docking direction. Each metal plate 11 has a plate surface 111 and side surfaces 112. The two opposite holes of the receiving hole 12 are formed by the plate surfaces 111 of two metal plates 11, and the two opposite holes of the receiving hole 12 are formed by stacking the side surfaces 112 of multiple metal plates 11. In other embodiments, the two opposite holes of the receiving hole 12 are formed by the plate surfaces 111 of two metal plates 11, and the two opposite holes of the receiving hole 12 are formed by stacking the side surfaces 112 of multiple metal plates 11. The plurality of metal plates 11 includes a plurality of first plates 11a and a plurality of second plate groups. Each second plate group includes a plurality of second plates 11b stacked in the front-back direction. One first plate 11a is located between the signal terminals 4 of two adjacent rows of receiving holes 12, and one second plate group is located between the signal terminals 4 of two adjacent receiving holes 12 in the same row. In other embodiments, multiple first plates 11a may be located between the signal terminals 4 of two adjacent rows of receiving holes 12. In this embodiment, the two front-back opposite hole walls of the receiving hole 12 are formed by the plate surfaces 111 of two first plates 11a, and the two left-right opposite hole walls of the receiving hole 12 are formed by the side surfaces 112 of two second plate groups. The plate surfaces 111 of the first plate 11a of the same receiving hole 12 in the front-back direction are electrically connected to the plate surfaces 111 of the second plate 11b of the same receiving hole 12. In other embodiments, the two opposite holes of the receiving hole 12 are formed by the plate surfaces 111 of two first plates 11a, and the two opposite holes of the receiving hole 12 are formed by the side surfaces 112 of two second plate groups. The plate surfaces 111 of the first plate 11a and the second plate 11b of the same receiving hole 12 are electrically connected along the left-right direction. In this embodiment, the two opposite first plates 11a of the same receiving hole 12 are separately arranged, and the two opposite second plate groups of the same receiving hole 12 are separately arranged. This helps to improve the flatness of the fit between adjacent metal plates 11, reduce the gap size between adjacent metal plates 11, and reduce interference caused by electromagnetic signals emitted between signal terminals 4 in adjacent receiving holes 12 passing through the gap. The length of the first plate 11a along the left-right direction is greater than the length of the second plate 11b. The same first plate 11a includes the hole walls of multiple receiving holes 12 in the same row, and the two adjacent second plate groups in adjacent rows are staggered along the front-back direction. Each receiving hole 12 accommodates an insulator 2.

[0037] like Figures 2 to 3 and Figure 7 As shown, the body 1 has a plurality of docking structures facing the docking direction. The body 1 is connected to the docking connector 200 through the docking structures to form a common ground shield. Each receiving hole 12 is surrounded by two or more docking structures; in other embodiments, each receiving hole 12 is surrounded by two docking structures. In this embodiment, the metal plate 11 of the docking structure system extends a contact arm 113 along the docking direction. Each contact arm 113 includes two arm portions (not labeled). In other embodiments, each contact arm 113 includes one arm portion. In this embodiment, the metal plate 11 of the docking structure system extends multiple contact arms 113 along the docking direction. Each contact arm 113 includes two arm portions (not labeled). In other embodiments, each contact arm 113 includes one arm portion. In this embodiment, a hook 1131 protrudes from the side edge of the contact arm 113 for hooking and fixing during docking. In this embodiment, the docking structure system has a plurality of grooves 114 recessed from the docking direction on a metal plate 11, and protrusions 1141 are provided in the grooves 114. In other embodiments, the docking structure consists of a metal plate 11 with a recess 114 recessed from the docking direction.

[0038] like Figure 5 As shown, the insulator 2 includes a base 21 and a protrusion 22 connecting the base 21. The base 21 is located inside the receiving hole 12. Along the mating direction, a portion of the protrusion 22 protrudes out of the receiving hole 12. Along the contact direction in which the signal terminal 4 of the mating connector 200 and the signal terminal 4 of the electrical connector 100 come into contact with each other, the protrusion 22 is recessed relative to the base 21 to form a mating space P.

[0039] like Figure 5 As shown, the signal terminal 4 includes a signal contact portion 41, a signal abutment portion 42, a signal holding portion 43, and a signal conducting portion 44. The signal contact portion 41 is located outside the receiving hole 12, and the signal abutment portion 42 is located inside the receiving hole 12. Both the signal contact portion 41 and the signal abutment portion 42 are exposed in the mating space P. The signal holding portion 43 is located below the signal abutment portion 42 and is assembled and fixed to the insulating block. The signal conducting portion 44 is located below the signal holding portion 43 and is used to be soldered to the circuit board 300. In other embodiments, the signal conducting portion 44 can abut against the circuit board 300.

[0040] like Figure 6 and Figure 8As shown, in this embodiment, when the electrical connector 100 and the mating connector 200 are mated together, the mating space P of the electrical connector 100 includes a portion of the receiving hole 12 of the electrical connector 100 and a portion of the receiving hole 12 of the mating connector 200. Similarly, the mating space P of the mating connector 200 also includes a portion of the receiving hole 12 of the electrical connector 100 and a portion of the receiving hole 12 of the mating connector 200. Along the vertical direction, the protrusion 22 of the electrical connector 100 is inserted into the mating space P of the mating connector 200, and the signal contact 41 of the electrical connector 100 abuts against the signal contact 42 of the mating connector 200, achieving dual-channel signal conduction. The body of the electrical connector 100... 1. The body 1 of the docking connector 200 is connected by a docking structure to form a common ground shield; the groove 114 of the docking connector 200 accommodates a portion of the contact arm 113 of the electrical connector 100, the groove 114 of the electrical connector 100 accommodates a portion of the contact arm 113 of the docking connector 200, the hook 1131 of the electrical connector 100 and the protrusion 1141 of the docking connector 200 are hooked and fixed, the hook 1131 of the docking connector 200 and the protrusion 1141 of the electrical connector 100 are hooked and fixed, which is conducive to the stable fixing of the metal plate 11 of the electrical connector 100 and the metal plate 11 of the docking connector 200. In addition, a portion of the contact arm 113 of the electrical connector 100 directly abuts against the side surface 112 of the second plate 11b of the docking connector 200.

[0041] like Figures 9 to 12 As shown, the electrical connector 100, mating connector 200, and electrical connection device assembly of the second embodiment of the present invention differ from those of the first embodiment in that: like Figures 10 to 11As shown, both the electrical connector 100 and the mating connector 200 include a mating structure. The mating structure includes the wall of the receiving hole 12 and a conductive element 3. The mating structure does not include the contact arm 113 and the groove 114. The conductive element 3 includes a main body 31, a plurality of spring pieces 32 connecting the main body 31, and a plurality of cantilever arms 33 connecting the main body 31. The main body 31 is assembled and fixed to the insulator 2. The spring pieces 32 are received in the receiving hole 12 and abut against the metal plate 11. A portion of the cantilever arm 33 is located outside the main body 1; in other embodiments, all of the cantilever arms 33 are located outside the main body 1. In this embodiment, when the electrical connector 100 mates with the mating connector 200, the cantilever 33 of the mating connector 200 enters the receiving hole 12 of the electrical connector 100 and abuts against the hole wall of the receiving hole 12 of the electrical connector 100. The cantilever 33 of the electrical connector 100 entering the receiving hole 12 of the mating connector 200 and abutting against the hole wall of the receiving hole 12 of the mating connector 200 facilitates electrical conduction between the conductive element 3 of the electrical connector 100 and the metal plate 11 of the body 1 of the mating connector 200, and facilitates electrical conduction between the conductive element 3 of the mating connector 200 and the metal plate 11 of the body 1 of the electrical connector 100, thereby achieving common ground shielding.

[0042] As shown in Figure 9 and Figure 12 As shown, in this embodiment, both the electrical connector 100 and the mating connector 200 are provided with a guide plate 5, wherein the guide plate 5 is located above the body 1 and in contact with the upper surface of the metal plate 11. In this embodiment, the guide plate 5 is formed by stamping a metal sheet 11. The guide plate 5 includes a plate portion and a plurality of elastic arms 51 connecting the plate portion. The plate portion is located above the body 1 and contacts the upper surface of the metal sheet 11. The elastic arms 51 are correspondingly distributed around the receiving hole 12. When the electrical connector 100 and the mating connector 200 are mated together, along the vertical direction, the guide plate 5 of the electrical connector 100 and the guide plate 5 of the mating connector 200 are both located between the body 1 of the electrical connector 100 and the body 1 of the mating connector 200. The elastic arms 51 of the electrical connector 100 elastically abut against the plate portion of the mating connector 200, and the elastic arms 51 of the mating connector 200 elastically abut against the plate portion of the electrical connector 100, forming a common ground shield, reducing the mutual influence of interference signals emitted between adjacent signal terminals 4 caused by the gap between the body 1 of the electrical connector 100 and the body 1 of the mating connector 200.

[0043] In other embodiments, the electrical connector 100 includes a guide plate 5, while the mating connector 200 does not have a guide plate 5. The guide plate 5 is disposed above the body 1, and the plate portion of the guide plate 5 contacts the upper surface of the metal plate 11 of the electrical connector 100. When the electrical connector 100 and the mating connector 200 are mated together, in the vertical direction, the guide plate 5 of the electrical connector 100 is located between the body 1 of the electrical connector 100 and the body 1 of the mating connector 200, and the elastic arm 51 of the electrical connector 100 elastically abuts against the metal plate 11 of the mating connector 200. In other embodiments, both the electrical connector 100 and the mating connector 200 are provided with multiple guide plates 5.

[0044] In another embodiment, the electrical connector 100 is provided with a guide plate 5, while the mating connector 200 is not provided with a guide plate 5. The guide plate 5 is made of elastic conductive adhesive. When the electrical connector 100 and the mating connector 200 are mated together, the guide plate 5 of the electrical connector 100 elastically abuts against the body 1 of the mating connector 200 in the up-down direction.

[0045] In another embodiment, both the electrical connector 100 and the mating connector 200 are provided with a guide plate 5. The guide plate 5 is made of elastic conductive adhesive. When the electrical connector 100 and the mating connector 200 are mated together, the guide plate 5 of the electrical connector 100 elastically abuts against the body 1 of the mating connector 200 in the vertical direction, and the guide plate 5 of the mating connector 200 elastically abuts against the body 1 of the electrical connector 100, or the guide plate 5 of the electrical connector 100 elastically abuts against the guide plate 5 of the mating connector 200 in the vertical direction.

[0046] In summary, the electrical connector 100 and electrical connection device of the present invention have the following beneficial effects: The body 1 is formed by stacking a plurality of conductive metal plates 11. The body 1 forms at least one receiving hole 12. The stacking direction of the plurality of metal plates 11 is perpendicular to the docking direction. The metal plates 11 have a plate surface 111 and a side surface 112. The two opposite hole walls of the receiving hole 12 are formed by the plate surfaces 111 of the two metal plates 11. The other two opposite hole walls of the receiving hole 12 are formed by stacking the side surfaces 112 of the plurality of metal plates 11. Since the receiving hole 12 has two hole walls formed by the plate surfaces 111 of the plurality of metal plates 11, the interference signal emitted by the signal terminal 4 housed in the receiving hole 12 is not easily transmitted through the hole walls formed by the plate surfaces 111 of the metal plates 11. The stacking direction of the plurality of metal plates 11 is perpendicular to the mating direction. Two adjacent metal plates 11 are bonded together in the left-right and up-down directions. The bonding dimension of two adjacent metal plates 11 in the up-down direction is equivalent to the height of a receiving hole 12. Compared with the bonding dimension of the shielding component in the width direction in the prior art, the bonding dimension of two adjacent metal plates 11 in the height direction is relatively small. Therefore, the flatness of the bonding between two adjacent metal plates 11 is better than that in the prior art. As a result, the gap between the plate surfaces 111 of the stacked plurality of metal plates 11 is smaller. The mutual interference caused by the electromagnetic signals emitted between the signal terminals 4 in the adjacent receiving holes 12 passing through the gap is reduced. At the same time, external interference signals are not easy to pass through the gap and interfere with the signal terminals 4.

[0047] 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 for mating with a mating device along a mating direction, characterized in that, include: A body is formed by stacking a plurality of conductive metal plates to form at least one receiving hole. The stacking direction of the plurality of metal plates is perpendicular to the docking direction. The metal plates have a plate surface and a side surface. The two opposite holes of the receiving hole are formed by the plate surfaces of the two metal plates, and the other two opposite holes of the receiving hole are formed by stacking the side surfaces of the plurality of metal plates. An insulator is housed within the receiving hole, and at least one signal terminal is provided within the insulator.

2. The electrical connector according to claim 1, characterized in that: The main body is provided with multiple docking structures in the docking direction. The main body is connected to the docking device through the docking structures to form a common ground shield.

3. The electrical connector according to claim 2, characterized in that: Each receiving hole is surrounded by at least two mating structures.

4. The electrical connector according to claim 2, characterized in that: The metal sheet of the docking structure extends at least one contact arm along the docking direction.

5. The electrical connector according to claim 4, characterized in that: A hook protrudes from the side edge of the contact arm to hold and secure it during docking.

6. The electrical connector according to claim 2, characterized in that: The metal sheet of the docking structure has at least one groove recessed from the docking direction.

7. The electrical connector according to claim 2, characterized in that: The docking structure is the wall of the hole that accommodates the hole.

8. The electrical connector according to claim 1, characterized in that: The main body has multiple receiving holes, which are arranged in multiple rows. The two receiving holes in adjacent rows are staggered, and the docking device is a circuit board.

9. The electrical connector according to claim 1, characterized in that: At least one guide plate is provided between the main body and the docking device. The guide plate is provided with elastic arms, which are distributed around the receiving hole and respectively dock with the main body and the docking device to form a common ground shield.

10. The electrical connector according to claim 1, characterized in that: The body has multiple receiving holes, which are arranged in rows along the left and right direction and in multiple rows along the front and back direction. The plurality of metal plates include a plurality of first plates and a plurality of second plate groups. Each second plate group includes a plurality of second plates stacked along the front and back direction. At least one first plate is located between the signal terminals of two adjacent rows of receiving holes. A second plate group is located between the signal terminals of two adjacent receiving holes in the same row. The two hole walls of the receiving hole that are opposite each other in the front and back direction are formed by the plate surfaces of two first plates. The two hole walls of the receiving hole that are opposite each other in the left and right direction are formed by the side surfaces of two second plate groups. The plate surface of the first plate of the same receiving hole and the plate surface of the second plate of the same receiving hole are electrically connected along the front and back direction. The two second plate groups that are opposite each other in the left and right direction of the same receiving hole are separately arranged.

11. The electrical connector according to claim 10, characterized in that: The length of the first plate in the left-right direction is greater than the length of the second plate. The same first plate includes the wall of multiple receiving holes in the same row. The two adjacent second plate groups in the front-back direction are staggered.

12. The electrical connector according to claim 1, characterized in that: The insulator includes a base and a protrusion connecting the base. The base is located inside the receiving hole. Along the mating direction, a portion of the protrusion protrudes out of the receiving hole. Along the contact direction of the signal terminal of the mating device and the signal terminal of the electrical connector, the protrusion is recessed relative to the base to form a mating space. The signal terminal includes a signal contact portion and a signal abutment portion. The signal contact portion is located outside the receiving hole, and the signal abutment portion is located inside the receiving hole. Both the signal contact portion and the signal abutment portion are exposed in the mating space.

13. An electrical connection device assembly, characterized in that, include: Mutually compatible electrical connectors and mating devices, wherein the mating device is a mating connector, and both the electrical connector and the mating device include: A body is formed by stacking a plurality of conductive metal plates to form at least one receiving hole. The stacking direction of the plurality of metal plates is perpendicular to the docking direction. The metal plates have a plate surface and a side surface. The two opposite holes of the receiving hole are formed by the plate surfaces of the two metal plates, and the other two opposite holes of the receiving hole are formed by stacking the side surfaces of the plurality of metal plates. An insulator is housed within the receiving hole, and at least one signal terminal is provided within the insulator.

14. The electrical connection device assembly according to claim 13, characterized in that: The main body is provided with multiple docking structures facing the docking direction. When the electrical connector docks with the docking device, the main body of the electrical connector is connected to the main body of the docking device through the docking structure to form a common ground shield.

15. The electrical connection device assembly according to claim 14, characterized in that: Each receiving hole is surrounded by at least two mating structures.

16. The electrical connection device assembly according to claim 14, characterized in that: The mating structure of the electrical connector is at least one contact arm extending from the metal plate along the mating direction; the mating structure of the mating device is that the metal plate is recessed with at least one groove along the mating direction, and when the electrical connector is mated with the mating device, the groove of the mating device accommodates the contact arm of the electrical connector.

17. The electrical connection device assembly according to claim 16, characterized in that: The contact arm of the electrical connector has a hook protruding from its side edge, and the groove of the mating device has a protrusion. When the electrical connector is mated with the mating device, the hook of the electrical connector and the protrusion of the mating device hold and fix it in place.

18. The electrical connection device assembly according to claim 14, characterized in that: The mating structure of the electrical connector is the wall of the receiving hole, and the mating structure of the mating device is a conductive element. When the electrical connector is mated with the mating device, the conductive element of the mating device enters the receiving hole of the electrical connector and abuts against the wall of the receiving hole of the electrical connector.

19. The electrical connection device assembly according to claim 13, characterized in that: The main body has multiple receiving holes, which are arranged in multiple rows, with the two receiving holes in adjacent rows being staggered.

20. The electrical connection device assembly according to claim 13, characterized in that: At least one guide plate is provided between the main body and the docking device. The guide plate is provided with elastic arms, which are distributed around the receiving hole and respectively dock with the main body and the docking device to form a common ground shield.

21. The electrical connection device assembly according to claim 13, characterized in that: The insulator includes a base and a protrusion connecting the base. The base is located within a receiving hole. Along the mating direction, a portion of the protrusion protrudes from the receiving hole. Along the contact direction of the signal terminal of the mating device and the signal terminal of the electrical connector, the protrusion is recessed relative to the base to form a mating space. The signal terminal includes a signal contact portion and a signal abutment portion. The signal contact portion is located outside the receiving hole, and the signal abutment portion is located inside the receiving hole. Both the signal contact portion and the signal abutment portion are exposed in the mating space. When the electrical connector and the mating device are mated together, the protrusion of the electrical connector is inserted into the mating space of the mating device, and the protrusion of the mating device is inserted into the mating space of the electrical connector. The signal contact portion of the electrical connector abuts against the signal abutment portion of the mating device, and the signal abutment portion of the electrical connector abuts against the signal contact portion of the mating device.

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