Multi-channel coaxial connector and multi-channel coaxial connector assembly

Abstract

The utility model discloses a multi-channel coaxial connector and a multi-channel coaxial connector assembly. The multi-channel coaxial connector comprises a plurality of first connector bodies arranged side by side, first middle shielding sheets arranged between every two adjacent first connector bodies, and a shielding shell assembly wrapping the first connector bodies. Each first connector body comprises a first insulation body and a first terminal arranged on the first insulation body, and the first terminal is provided with an insertion matching end and an installation end which are exposed out of the shielding shell assembly. The multi-channel coaxial connector and the assembly have the following beneficial effects that the plurality of connector bodies are integrated together to form the multi-channel coaxial connector, gaps among the plurality of integrated connector bodies are small, and only one group of shielding shell is required to be coated on the outer side of the plurality of connector bodies, so that the occupied space is reduced, and the cost is reduced. Signal shielding is carried out through the middle shielding sheet and the shielding shell, and signal transmission leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a multi-channel coaxial connector and a multi-channel coaxial connector assembly. Background Technology

[0002] Coaxial connectors play a crucial role in the transmission of radio frequency (RF) and microwave signals, and are widely used in various fields such as communications, broadcasting, television, radar, and satellite communications. While traditional single-channel coaxial connector designs are simple in structure and have a clear function, in applications requiring high-density placement of multiple connectors, these connectors must be spaced apart to ensure signal quality. This limitation not only reduces equipment space utilization but also poses a challenge to the compactness and aesthetics of the equipment. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a multi-channel coaxial connector and a multi-channel coaxial connector assembly.

[0004] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a multi-channel coaxial connector is provided, including a plurality of first connector bodies arranged side by side, a first intermediate shielding sheet disposed between each pair of adjacent first connector bodies, and a shielding shell assembly covering the plurality of first connector bodies; each first connector body includes a first insulating body and a first terminal disposed on the first insulating body, the first terminal having a mating end and a mounting end exposed outside the shielding shell assembly.

[0005] Furthermore, a first intermediate gap is formed between each pair of adjacent first connector bodies for the first intermediate shield to be inserted therein;

[0006] Each pair of adjacent first connector bodies facing the first intermediate gap has a first recess, and the distance between the two first recesses is greater than the distance between the two sides of the first connector bodies facing the first intermediate gap.

[0007] In each pair of adjacent first connector bodies, a first retaining portion is provided on one side of any first connector body facing the first intermediate gap; a second retaining portion is provided on the first intermediate shield at a position corresponding to the first retaining portion, which retains the first retaining portion.

[0008] Furthermore, a mating surface is formed on one side of the front end portion of the first insulating body along the height direction, the mating end of the first terminal protrudes from the mating surface along the height direction, and the mounting end of the first terminal is formed in the rear end portion.

[0009] The height of the rear end portion of the first insulating body is greater than the height of the front end portion; a step is formed between the mating surface and the same side of the rear end portion; the height of the first intermediate shielding plate corresponding to the rear end portion is greater than its height corresponding to the front end portion, so that the two sides of the first intermediate shielding plate in the height direction are adapted to the rear end portion and the front end portion.

[0010] Furthermore, the shielding shell assembly includes an inner shielding shell, a middle shielding shell, and an outer shielding shell disposed from the inside out outside the plurality of first connector bodies;

[0011] The inner shielding shell covers the rear end portion of the plurality of first insulating bodies, and exposes the rear end face and the side facing away from the insertion mating surface of the first insulating body.

[0012] The intermediate shielding shell has a rear covering portion covering the outside of the inner shielding shell and a frame connected to the rear covering portion and surrounding the outer periphery of the insertion mating surface. The frame and the insertion mating surface enclose to form an insertion groove. The insertion mating end is located in the insertion groove, and the first intermediate shielding piece is partially located in the insertion groove.

[0013] The outer shielding shell covers one side of the first insulating body that is opposite to the mating surface, so that together with the intermediate shielding shell and the inner shielding shell, it encloses the plurality of first connector bodies.

[0014] Furthermore, the shielding shell assembly is also used to limit the first intermediate shielding sheet from the front-back direction and the height direction, wherein the inner shielding shell and the outer shielding shell limit the two sides of the first intermediate shielding sheet in the height direction; the rear end of the inner shielding shell is provided with a rear stop block for stopping the first intermediate shielding sheet from the rear, and the front side frame of the frame is used to stop the first intermediate shielding sheet from the front.

[0015] The middle shielding shell is provided with a first limiting component for limiting and cooperating with the outer shielding shell on its side facing the outer shielding shell, and the outer shielding shell is provided with a first cooperating component for limiting and cooperating with the first limiting component at the position corresponding to the first limiting component.

[0016] The inner shielding shell, the middle shielding shell, and the outer shielding shell are welded together using a welding process.

[0017] Furthermore, the frame has a plurality of flanges on the side facing the insertion direction, and the plurality of flanges are curved outwards towards the insertion direction; and / or

[0018] The inner side of the frame is provided with a plurality of elastic inserts, and each elastic insert forms an elastic slot with the inner side of the frame; the first insulating body is provided with a plurality of clearance recesses corresponding to the positions of the plurality of elastic inserts.

[0019] Furthermore, the front end portions of the two first insulating bodies located on the outermost side protrude outward from the outer side of their rear end portions along the parallel arrangement direction to form two side edge portions; two connecting grooves are provided at the rear end of the two side edge portions, the connecting grooves penetrate the front end portions rearward to form a groove located on the outer side of the rear end portions, the connecting grooves have a groove opening section distributed rearward and a groove bottom section that is curved forward and outward or inclined.

[0020] When the shielding shell assembly covers the multiple first connector bodies, a portion of the structure of the shielding shell assembly can be embedded and confined within the mating groove.

[0021] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is: to provide a multi-channel coaxial connector for complementary mating with the multi-channel coaxial connector described above, including a plurality of second connector bodies arranged side by side, a second intermediate shielding sheet disposed between each two adjacent sets of second connector bodies and in contact with the first intermediate shielding sheet, and a shielding shell covering the plurality of second connector bodies. Each second connector body includes a second insulating body and a second terminal, and the second terminal has a complementary mating end and a mounting end exposed outside the shielding shell.

[0022] Furthermore, multiple second insulating bodies are integrally connected; a second intermediate gap is provided between each pair of adjacent sets of second insulating bodies for the second intermediate shielding sheet to be inserted therein;

[0023] The second connector body is provided with a second limiting component for limiting the shielding shell, and the shielding shell is provided with a second mating component that cooperates with the limiting component at a position corresponding to the position of the second limiting component.

[0024] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is to provide a multi-channel coaxial connector assembly, including a first multi-channel coaxial connector and a second multi-channel coaxial connector that is plugged into it.

[0025] The multi-channel coaxial connector and assembly of this utility model have the following advantages: multiple connector bodies are integrated together to form a multi-channel coaxial connector. The gap between the multiple connector bodies integrated together is small. Only one set of shielding shells needs to be covered on the outside of the multiple connector bodies, which reduces the space occupied. Signal shielding is achieved through the intermediate shielding sheet and the shielding shell, which effectively prevents signal interference and signal transmission leakage. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 This is a structural schematic diagram of one embodiment of the multi-channel coaxial connector of this utility model.

[0028] Figure 2 yes Figure 1 A structural diagram from another perspective.

[0029] Figure 3 yes Figure 1 Exploded view.

[0030] Figure 4 yes Figure 3 Exploded view of multiple sets of first connector bodies, first intermediate shielding plates and inner shielding shells.

[0031] Figure 5 This is a partial cross-sectional view of the first intermediate shielding plate and the two adjacent first connector bodies, showing the engagement state of the first retaining part and the second retaining part.

[0032] Figure 6 yes Figure 2 A schematic diagram of the assembly of the first connector body and the first intermediate insert.

[0033] Figure 7 This is a schematic diagram of another embodiment of the multi-channel coaxial connector of this utility model.

[0034] Figure 8 yes Figure 7 Exploded view.

[0035] Figure 9 yes Figure 1 Multi-channel coaxial connectors and Figure 7 The diagram shows the combined state of the multi-channel coaxial connectors, which are combined to form a multi-channel coaxial connector assembly.

[0036] Figure 10 yes Figure 9 A sectional view of CC.

[0037] The diagrams in the instruction manual are labeled as follows:

[0038] Multi-channel coaxial connector A;

[0039] First connector body 100; rear end portion 100a; front end portion 100b; first intermediate gap J1; first recess J11; first retaining portion 101; first guide slope 101a; first insulating body 110; mating surface 111; positioning protrusion 111a; step 112; limiting groove 112a; mating groove 113; connecting component 115; through hole 116; side edge portion 117; mating groove 118; mounting groove 119; cavity 119a; first terminal 120; mating end 121; mounting end 122; first intermediate shielding plate 200; second retaining portion 201; second guide slope 20 1a; First contact portion 202; Shielding shell assembly 300; Inner shielding shell 310; Connecting hole 3101; Embedded portion 3102; Rear stop block 3103; Base plate 311; First side plate 312; Front portion 313; First covering portion 313a; Second covering portion 313b; Middle shielding shell 320; Rear covering portion 321; Enclosure frame 322; Front side frame 3221; Rear side frame 3222; Flanged edge 3223; Elastic insert block 3224; Elastic slot 3225; Second locking block 323; Protrusion 324; Outer shielding shell 330; Top plate 331; Second side plate 332; Second slot 333; Welded part 340;

[0040] Multi-channel coaxial connector B;

[0041] Second connector body 400; second intermediate gap J2; second recess J21; second insulating body 410; insertion cavity 411; tight fitting block 412; guide inclined block 412a; flat protrusion 412b; third slot 413; first groove 414; second terminal 420; complementary mating end 421; mounting end 422; second intermediate shielding plate 500; second contact portion 501; shielding shell 600; third locking block 601; second groove 602. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0045] Please see Figures 1 to 10 In this article, combined with Figures 1 to 10 The structures shown are exemplary illustrations of the multi-channel coaxial connectors A, B, and components of this utility model, to more clearly demonstrate the various components and mating relationships of the multi-channel coaxial connectors A, B, and components. It should be understood that although the multi-channel coaxial connectors A, B, and components shown in the figures are described in detail below as examples, this example is not intended to limit the scope of the multi-channel coaxial connectors A, B, and components of this utility model. Apart from components essential for solving the technical problems of this utility model, other components can be considered as non-essential technical elements. These non-essential technical elements can be replaced by other technical elements with the same or similar functions or structures in other embodiments, or these non-essential technical elements may not be needed in other embodiments.

[0046] Please see Figures 1 to 6 The multi-channel coaxial connector A of this embodiment includes a plurality of first connector bodies 100 arranged side by side, a first intermediate shielding sheet 200 disposed between each pair of adjacent first connector bodies 100, and a shielding shell assembly 300 covering the plurality of first connector bodies 100. The number of groups of the first connector bodies 100 is greater than or equal to two (for example, the two groups shown in the figure), and the specific number of groups can be configured according to actual needs.

[0047] In the plurality of first connector bodies 100, each first connector body 100 can be an independent entity or can be integrally connected by injection molding. In this embodiment, the plurality of first connectors are all independent, arranged side by side, and a first intermediate gap J1 is formed between every two adjacent first connector bodies 100 for the corresponding first intermediate shielding plate 200 to be inserted into.

[0048] In addition, a first recess J11 can be provided on one side of each pair of adjacent first connector bodies 100 facing the first intermediate gap J1. The distance between the two first recesses J11 is greater than the distance between the two sides of the first connector bodies 100 facing the first intermediate gap J1, so as to facilitate the insertion and removal of the first intermediate shield 200.

[0049] Additionally, please see Figure 5In each pair of adjacent first connector bodies 100, a first retaining portion 101 may be provided on one side (inner side) of any first connector body 100 facing the first intermediate gap J1; correspondingly, a second retaining portion 201 that retains the first retaining portion 101 may be provided on the first intermediate shield 200 at a position corresponding to the first retaining portion 101. The first retaining portion 101 may be configured as a first slot provided on the inner side of any first connector body 100 or a retaining step protruding on the corresponding inner side of the first connector body 100 (the solution adopted in this embodiment). The first slot or retaining step has a first guide slope 101a that is downward and gradually inwardly inclined along the insertion direction of the first intermediate shield 200 (which is also the insertion direction of the multi-channel coaxial connector A, the height direction or thickness direction of the first connector body 100 shown in the figure). The second holding part 201 is correspondingly configured to engage with the holding step or the first slot as a first holding block. The first holding block has a second guide slope 201a that guides and cooperates with the first guide slope 101a. When the first intermediate shielding piece 200 is engaged in the first intermediate gap J1, the upper surface of the first holding block abuts against the upper side wall of the first slot or the lower surface of the holding step.

[0050] In the embodiment shown, the first card block is formed by stamping, that is, stamping from one side of the first intermediate shield 200 to the opposite side, so that the lower end face of the first card block is connected to the first intermediate shield 200, and the rest is separated from the first intermediate shield 200, thereby making the first card block elastic so as to be inserted into the first intermediate gap J1 and engaged with the holding step.

[0051] The first intermediate shield 200 also has a first contact portion 202, which is used to maintain contact with the second intermediate shield of the mating multi-channel coaxial connector A. The first contact portion 202 can be configured as a protruding structure in this embodiment, and the second intermediate shield is configured as a matching recessed structure. The protruding direction of the protruding structure is the same as that of the mating end described below, and it is used to maintain contact with the second intermediate shield while the mating end is mated with the mating multi-channel coaxial connector A. The first contact portion 202 can also be configured as a recessed structure, and the corresponding second intermediate shield is configured as a matching protruding structure. Alternatively, in other embodiments, the first intermediate shield 200 can also maintain a planar structure, without either a protruding or recessed structure, only needing to maintain contact with the second intermediate shield when the multi-channel coaxial connector A is mated with the mating multi-channel coaxial connector A.

[0052] Each of the plurality of first connector bodies 100 includes a first insulating body 110 and a first terminal 120 disposed on the first insulating body 110. The first terminal 120 has a mating end 121 and a mounting end 122 exposed outside the shielding shell assembly 300. The mating end 121 is used for mating (complementary mating) with a paired (complementary mating) multi-channel coaxial connector A. The mating end 121 may be disposed at the front end of the first insulating body 110 (the end close to the paired multi-channel coaxial connector A during mating). The mounting end 122 is used for connecting to a cable or board end (such as a circuit board). The mounting end 122 may be disposed at the rear end of the first insulating body 110.

[0053] The structure of the first connector body 100 and the first terminal 120 can be a known structure or the structure shown in the accompanying drawings. The structure of the first connector body 100 and the first terminal 120 in this embodiment will be described exemplarily below with reference to the accompanying drawings.

[0054] Please see Figure 6 The first connector body 100 has a thicker (i.e., taller) rear end portion 100a and a thinner (lower) front end portion 100b. A mating surface 111 is formed on one side of the front end portion 100b facing the height direction. The mating end 121 of the first terminal 120 protrudes from the mating surface 111 along the height direction, and the mounting end 122 of the first terminal 120 is formed in the rear end portion 100a. When the first intermediate shield 200 described above has a convex structure, it protrudes from the mating surface 111; when it has a concave structure, it is recessed within the first intermediate gap J1. Configuring the rear end portion 100a and the front end portion 100b of the first connector body 100 to have different heights is a preferred but not mandatory approach. Configuring the height direction as the mating direction of the multi-channel coaxial connector A can effectively reduce the volume of the multi-channel coaxial connector A, reduce space occupation, and save materials.

[0055] The first connector body 100 has almost no height difference on the side facing away from the mating surface 111 (the upper surface shown in the figure). The height difference occurs on the side of the first connector body 100 facing the mating multi-channel coaxial connector A (the lower surface shown in the figure). That is, the rear end portion 100a protrudes from the front end portion 100b along the height direction toward the mating multi-channel coaxial connector A, so that a step 112 is formed between the mating surface 111 and the same side of the rear end portion 100a. The advantage of this design is that after the shielding shell assembly 300 covers the plurality of first connector bodies 100, the mating surface 111 of the front end portion 100b and the shielding shell assembly 300 form a mating groove 113 for complementary mating with the mating multi-channel coaxial connector A (see figure). Figure 2 The height difference between the rear portion 100a and the front portion 100b allows the height of the insertion slot 113 to be adapted to the height of the rear portion 100a. In the illustrated embodiment, in accordance with the structure of the step 112, the rear and front heights of the first intermediate shield 200 are also adaptively configured such that the height of the rear portion 100a of the first intermediate shield 200 is greater than the height corresponding to its front portion 100b, and the lower side surface (the side facing the insertion direction) of the rear portion 100a of the first intermediate shield 200 protrudes beyond the lower side surface of its front portion 100b, thereby adapting the height of the first intermediate shield 200 to the height of the plurality of first connector bodies 100.

[0056] To improve the stability of the mating end 121 of the first terminal 120 and prevent the mating end 121 of the first terminal 120 from shifting position when it is mated with the paired multi-channel coaxial connector A, a positioning protrusion 111a adapted to the shape of the mating end 121 is provided on the mating surface 111, and the mating end 121 of the first terminal 120 is fixedly covered by the outer surface of the positioning protrusion 111a.

[0057] At least one side of the first insulating body 110 that is joined to the shielding shell assembly 300 is further provided with a connecting member 115 to enhance the bonding force between them. For example, the connecting member 115 may be a recess or a protrusion formed on at least one side of the first insulating body 110 facing the shielding shell assembly 300 to increase the connection strength and connection stability between them. As another example, in this embodiment, the connecting member 115 includes a protrusion disposed on the outer side (the side away from the first intermediate gap J1) of the two outermost first insulating bodies 110, a protrusion disposed between the outer side and its adjacent side (the bottom side shown in the figure), a protruding post disposed on the bottom side, etc. The protrusion on the bottom side can be located at the mounting end 122 of the first terminal 120, directly opposite the rear end portion 100a. The protrusion also has a through hole 116 extending through the protrusion and the rear end portion 100a along its thickness direction. This through hole 116 allows the pressing part of the injection mold to pass through it and press against the mounting end 122 of the first terminal 120 during the injection molding process of the first insulating body 110. This prevents the first terminal 120 from shifting in height under injection molding pressure, and prevents the mounting end 122 of the first terminal 120 from being encased in the injection molding compound, thus preventing it from making a conductive connection with the cable core. Alternatively, in other embodiments, the protrusion may not be necessary at the through hole 116, or the protrusion may not be located at the through hole 116.

[0058] In the illustrated embodiment, the front end portions 100b of the two outermost first insulating bodies 110 protrude outwards in the lateral direction (side-by-side arrangement) beyond the outer side of their rear end portions 100a, forming two side edge portions 117 protruding in the lateral direction on the outer sides of the front end portions 100b of the two outermost first insulating bodies 110. This design can further increase the bonding force between the shielding shell assembly 300 and the two side first connector bodies 100. Specifically, two mating grooves 118 can be provided at the rear end of the two side edge portions 117, and the mating grooves 118 extend rearward through the front end portions 100b to form slots located outside the rear end portions 100a. The mating groove 118 may be configured as follows: it may have a groove section distributed rearward and a groove bottom section that is curved or inclined forward and outward. When the shielding shell assembly 300 covers the multiple first connector bodies 100, part of the structure of the shielding shell assembly 300 (see the description below for details) may be embedded and confined within the mating groove 118. The curved or inclined groove bottom section has the function of preventing the shielding shell assembly 300 from moving back and forth, thereby improving the mating force.

[0059] The rear end portion 100a of the first insulating body 110 has a mounting groove 119 (see...). Figure 4The mounting groove 119 has an opening facing rearward, and may also have an opening facing away from the mating surface 111. The bottom surface of the mounting groove 119 faces the mating surface 111. When the shielding shell assembly 300 covers the plurality of first connector bodies 100, it forms a rearward-facing cavity 119a with the mounting groove 119. The mounting end 122 of the first terminal 120 is embedded in the bottom surface of the mounting groove 119, and the portion of the mounting end 122 exposed in the mounting groove 119 is used for soldering with a cable to achieve an electrical connection between them. In this embodiment, the rear end of the first intermediate shielding plate 200 extends out of the first intermediate gap J1 to protrude from the rear end of the first insulating body 110, thereby shielding the connection between the first terminal 120 and the corresponding cable from the adjacent connection. It should be understood that when the multi-channel coaxial connector A is a board-end connector, the mounting end 122 may extend beyond the rear end or other sides of the first insulating body 110 to facilitate soldering to the board end.

[0060] The shielding shell assembly 300 covers the plurality of first connector bodies 100 and exposes the mating end 121 and the mounting end 122. The shielding shell assembly 300 is also used to limit the first intermediate shielding sheet 200 from the front-back direction and the thickness direction. The shielding shell assembly 300 includes an inner shielding shell 310, an intermediate shielding shell 320 and an outer shielding shell 330 disposed from the inside to the outside of the plurality of first connector bodies 100.

[0061] The inner shielding shell 310 covers the rear end portions 100a of the plurality of first insulating bodies 110, exposing both the rear end face and the side facing away from the mating surface 111 of the first insulating bodies 110. The inner shielding shell 310 can be connected to the plurality of first connector bodies 100 by injection molding, such that the inner shielding shell 310 is engaged with the side of the rear end portions 100a of the plurality of first insulating bodies 110 facing the mating direction (the bottom side shown in the figure) and with the outer sides (two outer sides in the lateral direction) of the two outermost first insulating bodies 110. In addition, corresponding to the mating parts 115 (such as protrusions or protrusions) that enhance the mating force described above, the inner shielding shell 310 is provided with mating portions (such as mating holes 3101 or mating grooves) at positions corresponding to the mating parts 115.

[0062] In a specific embodiment, the inner shielding shell 310 and the outer shielding shell 330 limit the two sides of the first intermediate shielding plate 200 in the height direction. The rear end of the inner shielding shell 310 is provided with a rear stop block 3103 for rear-stopping the first intermediate shielding plate 200. The inner shielding shell 310 includes a bottom plate 311 covering the bottom side of the rear end portion 100a and two first side plates 312 covering the outer sides of the two outermost first insulating bodies 110. The connecting portion includes connecting holes 3101 corresponding to the first side plates 312, the intersection of the first side plates 312 and the bottom plate 311, and on the bottom plate 311. These connecting holes 3101 are used to inject plastic filling to form the connecting component 115, thereby increasing the bonding force between the inner shielding shell 310 and the first connector body 100. The front ends of the two first side plates 312 are also integrally connected to an embedding portion 3102 for embedding into the connecting groove 118 described above. The front end of the base plate 311 is integrally connected to a front edge 313 for covering the step 112 between the rear end portion 100a and the front end portion 100b. The front edge 313 has a first covering portion 313a covering the step surface of the step 112 and a second covering portion 313b covering the front end portion 100b near the step surface. To increase the bonding force of the second covering portion 313b, a limiting groove 112a is provided near the step surface. The second covering portion 313b is engaged with the bottom surface of the limiting groove 112a, and the front edge and the two lateral edges of the second covering portion 313b are engaged with the groove wall of the limiting groove 112a.

[0063] The intermediate shielding shell 320 has a rear covering portion 321 that covers the outside of the inner shielding shell 310, and a frame 322 that connects to the rear covering portion 321 and surrounds the outer periphery of the insertion mating surface 111. The shape of the rear covering portion 321 is adapted to the inner shielding shell 310, so it will not be described in detail. The frame 322 and the insertion mating surface 111 enclose the insertion groove 113, the insertion mating end 121 is located in the insertion groove 113, and a portion of the first intermediate shielding sheet 200 may be located in the insertion groove 113.

[0064] The front frame 3221 of the enclosure 322 is used to stop the first intermediate shielding piece 200. The height of the rear frame 3222 of the enclosure 322 near the step 112 is less than the height of the other side frames, so that the rear frame 3222 can be placed precisely on the insertion mating surface 111 near the step 112. Specifically, the rear frame 3222 is placed on the second covering part 313b.

[0065] The frame 322 may have several flanges 3223 on the side facing the insertion direction (the side closer to the mating multi-channel coaxial connector A). These flanges 3223 bend outwards in the insertion direction and guide the mating multi-channel coaxial connector A. The inner side of the frame 322 may also have several elastic plugs 3224, and the first insulating body 110 has several clearance recesses 11a corresponding to the positions of these elastic plugs 3224. Each elastic plug 3224 forms an elastic slot 3225 with the inner side of the frame 322. The elastic slot 3225 also guides the mating multi-channel coaxial connector A, facilitating the insertion of the shielding shell of the mating multi-channel coaxial connector A into the elastic slot 3225. Furthermore, the elastic slot 3225 can limit the mating multi-channel coaxial connector A during insertion, preventing displacement and improving insertion efficiency.

[0066] The intermediate shielding shell 320 has a first limiting component on its side facing the outer shielding shell 330 for limiting and engaging with the outer shielding shell 330. The first limiting component can be a protruding structure on the corresponding outer side of the intermediate shielding shell 320, a recessed structure on the corresponding outer side of the intermediate shielding shell 320, or a combination of both. For example, in this embodiment, the first limiting component may include second locking blocks 323 on both lateral sides of the rear covering portion 321.

[0067] The outer shielding shell 330 covers one side of the first insulating body 110 opposite to the mating surface 111, so as to enclose the plurality of first connector bodies 100 together with the intermediate shielding shell 320 and the inner shielding shell 310. The outer shielding shell 330 includes a top plate 331 covering one side of the plurality of first connector bodies 100 opposite to the mating surface 111, and a second side plate 332 connected to the top plate 331 and covering the two lateral sides and the front side of the intermediate shielding shell 320.

[0068] The outer shielding shell 330, the middle shielding shell 320, and the inner shielding shell 310 are welded together using a soldering process. Specifically, the second side plate 332 has welding gaps on both the lateral sides and the front side of the middle shielding shell 320. Welding is performed at these welding gaps, between the top plate 331 of the outer shielding shell 330 and the frame 322, and between the top plate 331 and the inner shielding shell 310.

[0069] The outer shielding shell 330 is provided with a first mating component at a position corresponding to the first limiting component, which engages with the limiting component. The first mating component may be a recessed structure paired with the inner surface of the outer shielding shell 330, a convex structure provided on the inner surface of the outer shielding shell 330, or a recessed structure and a convex structure provided on the corresponding inner surface of the outer shielding shell 330. For example, in this embodiment, the first mating component may include a second slot 333 or a slot hole provided on the second side plate 332 and mating with the second slot 323.

[0070] Based on the above embodiments, the forming method of the multi-channel coaxial connector A is as follows: First, the first terminal 120 and the inner shielding shell 310 are placed together into an injection mold, and multiple first insulating bodies 110 are formed by injection molding. The rear end portion 100a of the multiple first insulating bodies 110 is covered by the inner shielding shell 310. Each group of first insulating bodies 110 wraps the middle section of the first terminal 120 inside, so that the insertion mating end 121 and the mounting end 122 of the first terminal 120 are exposed. Then, the first intermediate shielding plate 200 is inserted into the first intermediate gap J1. The second retaining part 201 on the first intermediate shielding plate 200 is engaged with the first retaining part 101 on the corresponding first insulating body 110 to prevent the first intermediate shielding plate 200 from being inserted along the insertion direction. Move away from the mating surface 111; then, assemble the intermediate shield 320 onto the outer periphery of the inner shield 310 and the front end portion 100b of the plurality of first connector bodies 100. At this time, the elastic plug 3224 of the intermediate shield 320 is inserted into the clearance groove of the first insulating body 110; then, weld the cable to the mounting end 122 of each first terminal 120; finally, assemble the outer shield 330 so that the second slot 333 on the outer shield 330 is engaged into the second block 323 on the intermediate shield 320 to limit the outer shield 330, and weld the outer shell, intermediate shield 320 and inner shield 310 together. The weld 340 formed after the solder solidifies seals the gaps between the shields, further preventing signal transmission leakage.

[0071] Please see Figure 7 and Figure 8 Another multi-channel coaxial connector B structure is shown, which is configured as a complementary multi-channel coaxial connector B to the multi-channel coaxial connector A described above. In this embodiment, the multi-channel coaxial connector B is configured as a board-end connector (the mounting end connects to the circuit board), but it is not limited to a board-end connector and can also be a wire-end connector (the mounting end connects to the cable).

[0072] The multi-channel coaxial connector B shown includes a plurality of second connector bodies 400 arranged side by side, a second intermediate shield 500 disposed between each pair of adjacent sets of second connector bodies 400 for contacting and engaging with the first intermediate shield 200, and a shielding shell 600 covering the plurality of second connector bodies 400. Each second connector body 400 includes a second insulating body 410 and a second terminal 420. The second terminal 420 has a complementary mating end 421 and a mounting end 422 exposed outside the shielding shell 600. The multi-channel coaxial connector B shown is a linear connector, that is, the front end of the multi-channel coaxial connector B is a complementary mating end, and the rear end is an end for soldering and mounting to a circuit board.

[0073] Similarly, in the plurality of second connector bodies 400, each second connector body 400 can be an independent individual or can be integrally connected by injection molding. In this embodiment, the plurality of second connector bodies 400 are integrally connected into a whole by injection molding, and the portions on both ends of the second intermediate gap J2 on each of two adjacent second connector bodies 400 are interconnected, so that the second intermediate gap J2 is distributed within the whole in the width direction and extends through the whole in the height direction (complementary mating direction).

[0074] Furthermore, a second recess J21 can be provided on one side (inner side) of each pair of adjacent second connector bodies 400 facing the second intermediate gap J2. The distance between two second recesses J21 is greater than the distance between the inner sides of the two second connector bodies 400, to facilitate the insertion and removal of the second intermediate shield 500. A second contact portion 501 is provided on the second intermediate shield 500 at a position corresponding to the first contact portion 202 of the first intermediate shield 200. The second contact portion 501 and the first contact portion 202 are complementary structures. When the first contact portion 202 is a convex structure, the second contact portion 501 is a concave structure; when the first contact portion 202 is a concave structure, the second contact portion 501 is a convex structure. In this embodiment, the second contact portion 501 is disposed in the concave structure recessed in the second intermediate gap J2.

[0075] Each of the second insulating bodies 410 is provided with a plug cavity 411 extending along the complementary mating direction. The second terminal 420 is inserted into the plug cavity 411, and the complementary mating end 421 of the second terminal 420 faces the front end of the second insulating body 410. The mounting end 422 of the second terminal 420 is exposed at the rear end of the second insulating body 410 for soldering to the circuit board.

[0076] Each of the second insulating bodies 410 is further provided with a fastening block 412 distributed along the insertion direction on its outer surface. The fastening block 412 includes a guide ramp 412a distributed at the front end along the insertion direction and a flat protrusion distributed at the rear end. The guide ramp 412a is inclined outward toward the flat protrusion 412b to facilitate the shielding shell 600 to be quickly fitted onto the outer periphery of the plurality of second connector bodies 400. The flat protrusion 412b is used to abut against the inner surface of the shielding shell 600.

[0077] The second connector body 400 is provided with a second limiting component for limiting the shielding shell 600, and the shielding shell 600 is provided with a second mating component corresponding to the position of the second limiting component. The second limiting component can be configured as a third slot 413 disposed along the insertion direction at the outer edge of the plurality of second insulating bodies 410 near the outer edge of the shielding shell 600, and the second mating component can be configured as a third locking block 601 disposed on the inner side of the shielding shell 600 and engaging with the third slot 413.

[0078] The second connector body 400 is provided with a first groove 414 at the position corresponding to the elastic plug 3224 for the elastic plug 3224 to be inserted therein. The first groove 414 forms an opening in the direction of the shielding shell 600 so that the shielding shell 600 in this part can be inserted into the elastic slot 3225.

[0079] The shielding shell 600 is fitted onto the outer peripheral surface of the plurality of second connector bodies 400, exposing the front end (complementary mating end 421) and rear end (the end connected to the board end) of the plurality of second connector bodies 400. The outer surface of the shielding shell 600 is provided with a second groove 602 that mates with the frame 322 of the multi-channel coaxial connector A described above. The inner surface of the frame 322 protrudes inward at a position corresponding to the second groove 602. When two multi-channel coaxial connectors A and B are inserted, the protrusion 324 of the frame 322 enters the second groove 602 to contact and engage, enhancing contact reliability and engagement feel.

[0080] Based on the above embodiments, the forming method of the complementary plug-in multi-channel coaxial connector B is as follows: First, the second intermediate shielding plate 500 is placed in an injection mold to integrally injection mold with the second insulating body 410; then, the shielding shell 600 is fitted onto the outer periphery of the second insulating body 410. The shielding shell 600 is a frame structure with the front and rear ends connected, so that the front and rear ends of the second insulating body 410 are exposed; the guide oblique block 412a of the tight-fitting block 412 on the outer side of the second insulating body 410 can guide the shielding shell 600, and the straight protrusion 412b can increase the connection between the second insulating body 410 and the shielding shell. The bonding force of the shell 600 prevents the shielding shell 600 from detaching from the second insulating body 410; furthermore, the second insulating body 410 is engaged with the third locking block 601 on the shielding shell 600 through the third locking groove 413, further increasing the bonding force between the shielding shell 600 and the second insulating body 410; finally, each second terminal 420 is assembled into the insertion cavity 411 of each second insulating body 410, so that the complementary mating end 421 of the second terminal 420 is exposed at the front end of the second insulating body 410, and the mounting end 422 of the second terminal 420 is exposed at the rear end of the second insulating body 410, and the mounting end 422 is welded to the board end device.

[0081] Please see Figure 9 and Figure 10 This is a schematic diagram of the insertion and mating of the multi-channel coaxial connector A and the paired multi-channel coaxial connector B mentioned above. The two multi-channel coaxial connectors A and B are inserted and mated to form a multi-channel coaxial connector assembly, which is used to realize the electrical connection between line ends, line ends and board ends, or board ends and board ends of devices.

[0082] In summary, the multi-channel coaxial connector and assembly of this utility model have the following beneficial effects: multiple connector bodies (multiple first connector bodies or multiple second connector bodies) are integrated together to form a multi-channel coaxial connector. The gap between the multiple connector bodies integrated together is small, and only one set of shielding shells needs to be covered on the outside of the multiple connector bodies, reducing the space occupied. Signal shielding is achieved through the intermediate shielding sheet and the shielding shell, effectively preventing signal interference and signal transmission leakage.

[0083] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multi-channel coaxial connector, characterized in that, It includes a plurality of first connector bodies arranged side by side, a first intermediate shielding sheet disposed between each pair of adjacent first connector bodies, and a shielding shell assembly covering the plurality of first connector bodies; each first connector body includes a first insulating body and a first terminal disposed on the first insulating body, the first terminal having a mating end and a mounting end exposed outside the shielding shell assembly.

2. The multi-channel coaxial connector as described in claim 1, characterized in that: A first intermediate gap is formed between each pair of adjacent first connector bodies for the first intermediate shielding plate to be inserted therein; Each pair of adjacent first connector bodies facing the first intermediate gap has a first recess, and the distance between the two first recesses is greater than the distance between the two sides of the first connector bodies facing the first intermediate gap. In each pair of adjacent first connector bodies, a first retaining portion is provided on one side of any first connector body facing the first intermediate gap; a second retaining portion is provided on the first intermediate shield at a position corresponding to the first retaining portion, which retains the first retaining portion.

3. The multi-channel coaxial connector as described in claim 1, characterized in that: The front end portion of the first insulating body forms a mating surface on one side along the height direction, the mating end of the first terminal protrudes from the mating surface along the height direction, and the mounting end of the first terminal is formed at the rear end portion of the first insulating body. The height of the rear end portion of the first insulating body is greater than the height of the front end portion; a step is formed between the mating surface and the same side of the rear end portion; the height of the first intermediate shielding plate corresponding to the rear end portion is greater than its height corresponding to the front end portion, so that the two sides of the first intermediate shielding plate in the height direction are adapted to the rear end portion and the front end portion.

4. The multi-channel coaxial connector as described in claim 3, characterized in that: The shielding shell assembly includes an inner shielding shell, a middle shielding shell, and an outer shielding shell disposed from the inside out of the plurality of first connector bodies; The inner shielding shell covers the rear end portion of the plurality of first insulating bodies, and exposes the rear end face and the side facing away from the insertion mating surface of the first insulating body. The intermediate shielding shell has a rear covering portion covering the outside of the inner shielding shell and a frame connected to the rear covering portion and surrounding the outer periphery of the insertion mating surface. The frame and the insertion mating surface enclose to form an insertion groove. The insertion mating end is located in the insertion groove, and the first intermediate shielding piece is partially located in the insertion groove. The outer shielding shell covers one side of the first insulating body that is opposite to the mating surface, so that together with the intermediate shielding shell and the inner shielding shell, it encloses the plurality of first connector bodies.

5. The multi-channel coaxial connector as described in claim 4, characterized in that: The shielding shell assembly is also used to limit the first intermediate shielding sheet from the front-back direction and the height direction, wherein the inner shielding shell and the outer shielding shell limit the two sides of the first intermediate shielding sheet in the height direction; the rear end of the inner shielding shell is provided with a rear stop block for stopping the first intermediate shielding sheet from the rear, and the front side frame of the enclosure is used for stopping the first intermediate shielding sheet from the front. The middle shielding shell is provided with a first limiting component for limiting and cooperating with the outer shielding shell on its side facing the outer shielding shell, and the outer shielding shell is provided with a first cooperating component for limiting and cooperating with the first limiting component at the position corresponding to the first limiting component. The inner shielding shell, the middle shielding shell, and the outer shielding shell are welded together using a welding process.

6. The multi-channel coaxial connector as described in claim 4, characterized in that: The frame has several flanges on the side facing the insertion direction, and these flanges are curved outwards towards the insertion direction; and / or The inner side of the frame is provided with a plurality of elastic inserts, and each elastic insert forms an elastic slot with the inner side of the frame; the first insulating body is provided with a plurality of clearance recesses corresponding to the positions of the plurality of elastic inserts.

7. The multi-channel coaxial connector as described in claim 3, characterized in that: The front ends of the two first insulating bodies located on the outermost side protrude outward from the outer side of their rear ends along the side-by-side arrangement direction to form two side edge portions; two connecting grooves are provided at the rear ends of the two side edge portions, the connecting grooves penetrate the front ends rearward to form a groove located on the outer side of the rear ends, the connecting grooves have a groove opening section distributed rearward and a groove bottom section that is curved forward and outward or inclined. When the shielding shell assembly covers the multiple first connector bodies, a portion of the structure of the shielding shell assembly can be embedded and confined within the mating groove.

8. A multi-channel coaxial connector, characterized in that: For complementary mating with the multi-channel coaxial connector of any one of claims 1 to 7, comprising a plurality of second connector bodies arranged side by side, a second intermediate shield disposed between each two adjacent sets of second connector bodies and in contact with the first intermediate shield, and a shielding shell covering the plurality of second connector bodies, wherein each second connector body includes a second insulating body and a second terminal, the second terminal having a complementary mating end and a mounting end exposed outside the shielding shell.

9. The multi-channel coaxial connector as described in claim 8, characterized in that: Multiple second insulating bodies are integrally connected; a second intermediate gap is provided between each pair of adjacent groups of second insulating bodies for the second intermediate shielding sheet to be inserted therein; The second connector body is provided with a second limiting component for limiting the shielding shell, and the shielding shell is provided with a second mating component that cooperates with the limiting component at a position corresponding to the position of the second limiting component.

10. A multi-channel coaxial connector assembly, characterized in that: It includes a first multi-channel coaxial connector and a second multi-channel coaxial connector that mates with it, wherein the first multi-channel coaxial connector is configured as the multi-channel coaxial connector of any one of claims 1 to 7, and the second multi-channel coaxial connector is configured as the multi-channel coaxial connector of claim 8 or 9.

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