CN117913569B - System structure for optimizing MINI FAKRA impedance and SI performance - Google Patents
System structure for optimizing MINI FAKRA impedance and SI performance Download PDFInfo
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- CN117913569B CN117913569B CN202311771797.0A CN202311771797A CN117913569B CN 117913569 B CN117913569 B CN 117913569B CN 202311771797 A CN202311771797 A CN 202311771797A CN 117913569 B CN117913569 B CN 117913569B
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a system structure for optimizing MINI FAKRA impedance and SI performance, which comprises a wire end plastic shell, wherein the wire end plastic shell is provided with a cavity which is communicated end to end; the terminal structure is arranged in the cavity of the wire end plastic shell; the cable terminal is arranged in the cavity of the wire end plastic shell, one end of the cable terminal is connected with a cable, the other end of the cable terminal is provided with an arc bridge type structure and at least four contact spring pieces, the arc bridge type structure is provided with a plurality of installation gaps, and the number of the installation gaps is matched with the number and the positions of the contact spring pieces; and at least four contact bumps are arranged on the arc bridge type structure. The invention aims to solve the problems that the insertion loss of the SI performance of a terminal structure of a MINI FAKRA connector in the prior art has a large resonance at 10Ghz, 8Gh has a small resonance, and the impedance has a large impedance fluctuation when seen from a cable end.
Description
Technical Field
The invention relates to the technical field of frequency-emission connectors, in particular to a system structure for optimizing MINI FAKRA impedance and SI performance.
Background
As the application of the connector in the field of vehicle-mounted data communication is deeper and deeper, the vehicle-mounted high-speed connector is rapidly developed, the 360-degree looking-around system and the ADAS automatic auxiliary driving system are widely popularized and the electric architecture of the automobile is centralized, the resolution requirement of the camera image is higher and higher, the speed of the camera image is required to be as high as 915GHz to transmit massive data, and the traditional 6GHZ FAKRA connector cannot meet new requirements; therefore, a new high-performance vehicle-mounted high-speed connector MINI FAKRA has been developed. The connector has the characteristics of smaller volume, high integration, support of higher transmission rate and the like, and meets the requirements of modern vehicles and equipment on smaller, lighter and higher-performance connectors.
In practical application, through experiments, the MINI FAKRA connector in the prior art has the characteristics that the insertion loss of the MINI FAKRA terminal structure SI is large at 10Ghz, 8Gh is small, the impedance has large impedance fluctuation from the cable end, and the return loss is close to 0DB at 10 Ghz.
Disclosure of Invention
The invention provides a system structure for optimizing MINI FAKRA impedance and SI performance, and aims to solve the problems that the insertion loss of the SI performance of a terminal structure of a MINI FAKRA connector in the prior art has a large resonance at 10Ghz, 8Gh has a small resonance, and the impedance has a large impedance fluctuation from the cable end.
In order to solve the technical problems, the invention adopts the following technical scheme:
The system structure for optimizing MINI FAKRA impedance and SI performance comprises a wire end plastic shell, wherein the wire end plastic shell is provided with a cavity which is communicated end to end; the terminal structure is arranged in the cavity of the wire end plastic shell;
The cable terminal is arranged in the cavity of the wire end plastic shell, one end of the cable terminal is connected with a cable, the other end of the cable terminal is provided with an arc bridge type structure and at least four contact spring pieces, the arc bridge type structure is provided with a plurality of installation gaps, and the number of the installation gaps is matched with the number and the positions of the contact spring pieces;
The number of the contact protruding points is at least four, the contact protruding points are arranged on the arc bridge type structure, and the contact elastic sheet and the contact protruding points are arranged in the cavity of the line-end plastic shell.
Further, the terminal structure is provided with metal installation barrels, the number of the metal installation barrels corresponds to the number of the cable terminals, the cable terminals are used for being inserted into the metal installation barrels, and the contact spring plates and the contact protruding points are in contact with the inner surface of the wire end plastic shell.
Further, both sides face of the line end plastic shell are provided with clamping grooves, locking pieces are arranged in the clamping grooves and are detachably connected with the line end plastic shell, and the end faces of the locking pieces are tightly attached to a plurality of cable terminals.
Further, locking grooves are formed in the upper surface and the lower surface of the wire end plastic shell, and the locking piece is clamped with the locking grooves to realize detachable matching with the wire end plastic shell.
Further, the locking piece comprises a push plate and a compression block, the compression block is arranged in the middle of the push plate, and the inner surface of the compression block is used for being tightly attached to a plurality of cable terminals; elastic pieces are arranged at the upper end and the lower end of the push plate, locking hooks are arranged at the end parts of the elastic pieces, and the size of the locking grooves is matched with that of the locking hooks.
Further, the surface of the locking hook is provided with a guide slope.
Further, the terminal structure comprises a protective shell, wherein a metal mounting cylinder is arranged on the protective shell, and a plugboard is arranged on the protective shell; the shielding partition board is provided with a slot, the plugboard is matched with the slot, and the protective shell is in interference fit with the shielding partition board; the rubber cores are arranged in the metal mounting tubes, the number of the rubber cores corresponds to that of the metal mounting tubes, and the rubber cores are arranged in the metal mounting tubes; the terminal body, the terminal body has a plurality of, and terminal body's quantity corresponds with the quantity of gluing the core, and the terminal body is installed inside gluing the core, glues the core and is used for cladding terminal body, and terminal body's one end is used for being connected with the cable through the cable terminal, and the other end stretches out glues the core.
Further, the shielding baffle includes cross portion, installation department and supporting part, and installation department and supporting part set up in the both sides of cross portion, the slot sets up on the installation department, and the supporting part is used for dismantling with the protective housing to be connected, forms four quadrants after cross portion, installation department and the supporting part interconnect.
Further, the terminal body includes L type long terminal and L type short terminal, and the gum core is including long gum core and short gum core, and long gum core is used for cladding L type long terminal, and short gum core is used for cladding L type short terminal, and long gum core and short gum core are used for installing in four quadrants after cross portion, installation department and supporting part interconnect, and long gum core is installed in first, two quadrants, and short gum core is installed in third, four quadrants.
Further, the bottom of cross portion and protective housing all is equipped with the location arch.
Compared with the prior art, the invention has the following beneficial effects:
The invention mainly comprises a wire end plastic shell, wherein the wire end plastic shell is provided with a cavity which is penetrated from end to end; the terminal structure is arranged in the cavity of the wire end plastic shell; in the practical use process, the contact bulge and the contact spring plate are provided with at least four contact bulges, the front and rear four contact structures are formed after the at least four contact bulges are contacted with the inner surface of the wire end plastic shell, the structure can optimize a large resonance point, compared with the three-piece type contact spring plate structure in the prior art, the invention abandons the traditional three-piece type contact spring plate, at least four contact spring plates are arranged, and the contact spring plate is arc-shaped, so that the impedance can be optimized, the insertion loss of the SI performance of the MINI FAKRA connector in the practical application can be basically eliminated at the resonance of 10Ghz through the at least four contact bulges and the contact spring plate, the small resonance at the 8Ghz position is eliminated, the impedance low point is also from 40 ohms to 47.5 ohms, and the return loss is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention.
FIG. 2 is a second schematic diagram of the structure of the present invention.
FIG. 3 is a third schematic diagram of the structure of the present invention.
FIG. 4 is a schematic diagram of the structure of the present invention.
FIG. 5 is a schematic diagram of a fifth embodiment of the present invention.
Fig. 6 is a schematic structural view of a locking member in a fifth embodiment of the present invention.
Fig. 7 shows the impedance before optimization in the present invention.
Fig. 8 is an optimized impedance of the present invention.
Fig. 9 shows the return loss before optimization in the present invention.
Fig. 10 shows the return loss after optimization in the present invention.
Fig. 11 shows the insertion loss before optimization in the present invention.
Fig. 12 shows the insertion loss after optimization in the present invention.
In the figure, a 101-wire end plastic shell, 102-wire cable terminals, 103-wire cables, 104-arc bridge type structures, 105-contact spring plates, 106-installation gaps, 107-contact protruding points, 108-metal installation cylinders, 109-clamping grooves, 110-locking grooves, 111-push plates, 112-compression blocks, 113-elastic pieces, 114-locking hooks, 115-guide inclined planes, 116-protective shells, 117-insertion plates, 118-slots, 119-cross parts, 120-installation parts, 121-supporting parts, 122-L-shaped long terminals, 123-L-shaped short terminals, 124-long rubber cores, 125-short rubber cores, 126-positioning protrusions, 127-vertical plates, 128-upper transverse plates, 129-extrusion blocks, 130-sliding holes, 131-first baffle plates, 132-sliding rods, 133-ejector blocks, 134-pressing plates, 135-installation grooves, 136-first springs, 137-first limiting blocks, 138-first inclined planes, 139-first limiting grooves, 140-second baffle plates, 141-second springs, 142-second limiting grooves, 142-second limiting blocks, 146-T-limiting blocks, 144-T-third inclined planes, 147-third sliding grooves, and third sliding grooves.
Detailed Description
The present invention is further described below in conjunction with embodiments, which are merely some, but not all embodiments of the present invention. Based on the embodiments of the present invention, other embodiments that may be used by those of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
Example 1
Referring to fig. 1-12, the present embodiment discloses a system structure for optimizing MINI FAKRA impedance and SI performance, which includes a wire end plastic housing 101, wherein the wire end plastic housing 101 is provided with a cavity that runs through from end to end; a terminal structure mounted in a cavity of the wire end plastic case 101;
The cable terminal 102 is provided with a plurality of cable terminals 102, the cable terminals 102 are arranged in a cavity of the wire end plastic shell 101, one end of each cable terminal 102 is connected with a cable 103, the other end of each cable terminal is provided with an arc bridge type structure 104 and at least four contact spring pieces 105, the arc bridge type structure 104 is provided with a plurality of mounting gaps 106, and the number of the mounting gaps 106 is matched with the number and the positions of the contact spring pieces 105;
The contact bumps 107, at least four contact bumps 107 are provided, the contact bumps 107 are arranged on the arc bridge type structure 104, and the contact spring pieces 105 and the contact bumps 107 are arranged inside the cavity of the wire end plastic shell 101.
The invention mainly comprises a wire end plastic shell 101, wherein the wire end plastic shell 101 is provided with a cavity which is penetrated from end to end; a terminal structure mounted in a cavity of the wire end plastic case 101; in the practical use process, the contact bulge and the contact spring plate are provided with at least four contact bulges, and at least four contact bulges are contacted with the inner surface of the wire end plastic shell 101 to form a front-rear four-contact structure, so that the structure can optimize a large resonance point, as shown in figures 7-12, compared with the three-piece type contact spring plate 105 structure in the prior art, the three-piece type contact spring plate 105 is abandoned, and the three-piece type contact spring plate 105 is contacted with the outer protective shell 116 only in the position of the contact spring plate 105, and compared with the four-piece type structure, the four contact spring plates 105 are contacted with the outer protective shell 107, the three-piece type structure has long reflux path, and the Stub at the front end is also long, so that the resonance phenomenon is easy to occur; and at least four contact spring pieces 105 are arranged, and the contact spring pieces 105 are arc-shaped, so that impedance can be optimized, resonance of the MINI FAKRA connector at 10Ghz can be basically eliminated through at least four contact protrusions and the contact spring pieces, small resonance at 8Ghz can be eliminated, impedance low points are from 40 ohms to 47.5 ohms, and return loss is greatly improved.
In this embodiment, the arc bridge structure 104 is a linear structure, and the waist is concave, so that the arrangement has the advantage of effectively improving the problem of too high reference and reducing the impedance.
Example two
Referring to fig. 1-12, this embodiment is further optimized based on the first embodiment, in this embodiment, the terminal structure is provided with metal mounting barrels 108, the number of the metal mounting barrels 108 corresponds to the number of the cable terminals 102, and the cable terminals 102 are used for being plugged into the metal mounting barrels 108; the contact spring 105 and the contact bump 107 are both in contact with the inner surface of the wire end molding 101.
In practical use, four contact spring plates 105 play a supporting role and are in contact with the contact bumps 105 and the protective shell 116, so as to shorten the ground return path, improve ground return and further optimize resonance at the insertion loss of 10 Ghz.
As an alternative embodiment, in this embodiment, there are four metal mounting drums 108, four connectors of the cable 103, one end of the cable terminal 102 is used for fixing the cable 103, the other end is used for being mounted inside the metal mounting drum 108, and the metal mounting drum 108 is used for protecting the end of the cable terminal 102.
Example III
Referring to fig. 1-12, this embodiment is further optimized based on the first embodiment, in this embodiment, both side surfaces of the wire end molding case 101 are provided with clamping grooves 109, a locking member is installed in the clamping grooves 109, the locking member is detachably connected with the wire end molding case 101, and an end surface of the locking member is tightly attached to a plurality of cable terminals 102.
In the actual use process, two elastic pressing plates are arranged in the clamping groove 109, the left elastic pressing plate and the right elastic pressing plate are four in total, and the positions of the elastic pressing plates correspond to the four cable terminals 102; when the cable 103 connector is used, a user aligns the locking piece with the clamping groove 109, pushes the locking piece into the clamping groove 109, the locking piece extrudes the elastic pressing plates, the elastic pressing plates on two sides prop against the annular groove on the cable 103 connector until the locking piece is detachably connected with the cable terminal plastic shell 101, the cable terminal plastic shell 101 limits the elastic pressing plates, the locking piece extrudes the elastic pressing plates, and the elastic pressing plates fix the cable 103 connector in the X-axis direction.
In some embodiments, the locking grooves 110 are formed on the upper and lower surfaces of the wire end molding case 101, and the locking member is clamped with the locking grooves 110 to realize detachable matching with the wire end molding case 101.
In the actual use process, after the locking member is clamped with the locking groove 110, the wire end plastic shell 101 limits the locking member, and the locking member is fixed on the wire end plastic shell 101.
In some embodiments, the locking member comprises a push plate 111 and a compression block 112, the compression block 112 is arranged at the middle position of the push plate 111, and the inner surface of the compression block 112 is used for tightly fitting with the cable terminals 102; elastic pieces 113 are arranged at the upper end and the lower end of the push plate 111, locking hooks 114 are arranged at the end parts of the elastic pieces 113, and the size of the locking groove 110 is matched with that of the locking hooks 114.
In the actual use process, after the push plate 111 is aligned to the clamping groove 109, a user pushes the push plate 111 to enable the push plate 111 to squeeze the elastic pressing plate, meanwhile, the compression block 112 is inserted between the two vertical cable terminals 102, the shape of the inner surface of the compression block 112 is the same as that of the outer surface of the cable terminal 102, after the push plate 111 drives the compression block 112 to push, the compression block 112 clamps and fixes the two vertical cable terminals 102, at the moment, the locking hooks 114 are in contact with the wire end plastic shell 101, the elastic piece 113 is deformed under compression until the locking hooks 114 at the end part of the elastic piece 113 are placed into the locking groove 110, the elastic piece 113 is reset, and the locking hooks 114 are matched with the locking groove 110 to enable the position of the push plate 111 to be fixed.
In some embodiments, the surface of the locking hook 114 is provided with a guiding inclined plane 115, and the guiding inclined plane 115 has the advantage that the guiding inclined plane 115 slides after contacting with the wire end molding case 101, so that the sliding between the locking hook 114 and the wire end molding case 101 is smoother.
Example IV
Referring to fig. 1-5, the present embodiment is further optimized based on the first embodiment, in this embodiment, the terminal structure includes a protective housing 116, a metal mounting cylinder 108 is disposed on the protective housing 116, and a plugboard 117 is disposed on the protective housing 116; the shielding partition board is provided with a slot 118, the plugboard 117 is matched with the slot 118, and the protective shell 116 is in interference fit with the shielding partition board; the rubber cores are arranged, the number of the rubber cores corresponds to the number of the metal mounting cylinders 108, and the rubber cores are arranged in the metal mounting cylinders 108; the terminal body, the terminal body has a plurality of, and terminal body's quantity corresponds with the quantity of gluing the core, and the terminal body is installed inside gluing the core, glues the core and is used for cladding terminal body, and terminal body's one end is used for being connected with cable 103 through cable terminal 102, and the other end stretches out glues the core.
In some embodiments, the shielding partition includes a cross portion 119, a mounting portion 120, and a supporting portion 121, where the mounting portion 120 and the supporting portion 121 are disposed on two sides of the cross portion 119, the slot 118 is disposed on the mounting portion 120, and the supporting portion 121 is detachably connected to the protective shell 116, and the cross portion 119, the mounting portion 120, and the supporting portion 121 are connected to each other to form four quadrants.
In some embodiments, the terminal body includes an L-shaped long terminal 122 and an L-shaped short terminal 123, the rubber core includes a long rubber core 124 and a short rubber core 125, the long rubber core 124 is used for covering the L-shaped long terminal 122, the short rubber core 125 is used for covering the L-shaped short terminal 123, the long rubber core 124 and the short rubber core 125 are used for being installed in four quadrants after the cross portion 119, the installation portion 120 and the supporting portion 121 are connected with each other, the long rubber core 124 is installed in the first quadrant and the second quadrant, and the short rubber core 125 is installed in the third quadrant and the fourth quadrant.
In the practical use process, four quadrants are four installation areas respectively, and the four quadrants are mainly used for distinguishing specific positions of the four installation areas, and the long rubber core and the short rubber core are installed in the four quadrants.
In some embodiments, the cross 119 and the bottom of the protective shell 116 are each provided with a locating boss 126.
The positioning protrusion 126 is provided for facilitating the mounting and positioning of the protective case 116 and the cross 119 during actual use.
In this embodiment, first, the arc bridge structure 104 with the concave plane is convex inward to control the impedance of the center pin, and may be a high impedance point of the entire center pin at the arc bridge structure 104. As shown in fig. 7 and 8, fig. 7 is an impedance diagram, and it can be seen from the diagram that the impedance of the highest point of the center needle is close to 56 ohms, and is controlled to +/-5% at 50 ohms, so that the reference plane of the center needle and the ground is reduced by the arc bridge structure 104 (using the structure of fig. 5) in the present invention, and the impedance is further lowered. As shown in fig. 8, fig. 8 is an optimized impedance chart, and it can be seen from the chart that after the four-piece structure is used, the impedance is obviously optimized, and the marker of the two impedance charts can be compared, so that the obvious optimizing effect of the impedance can be seen.
Meanwhile, as the wire end plastic shell 101 at the cable terminal 102 is lengthened upwards, the inner wire end plastic shell 101 is also kept stable by the smooth barrel wall and the added rib position before, and meanwhile, the rib position is used instead of full wrapping, air is introduced, so that the relative medium of the whole environment is reduced, and the impedance is increased.
As shown in fig. 7, the influence of the large impedance fluctuation in fig. 7 causes the return loss in fig. 9 to be reflected by the impedance mismatch, which increases the return loss and further affects the quality and reliability of the signal.
As shown in fig. 8 and 11, since the deviation of the impedance control in fig. 8 is smaller and the impedance consistency is better, the return loss in fig. 11 is also relatively reduced, and the signal transmission quality is also steadily improved; this precisely illustrates the close relationship between impedance and return loss.
Finally, by comparing fig. 11 with fig. 12, it can be seen that the resonance of the contact shell 116 at about-23 db at about 10Ghz is eliminated when using four contact bumps 107 and four contact clips 105. Meanwhile, the overall insertion loss transition is smoother; this resonance also affects the return loss, which is now smoother, also because the effect of the resonance is eliminated.
Example five
Referring to fig. 1-6, the difference between this embodiment and the first embodiment is that in this embodiment, the locking member includes a vertical plate 127, a horizontal plate and two extrusion blocks 129, the two horizontal plates are disposed at the upper and lower ends of the locking member, the extrusion blocks 129 are connected with the vertical plate 127, the extrusion blocks 129 are located between the two horizontal plates, the horizontal plate above the vertical plate 127 is hereinafter referred to as "upper horizontal plate 128" and hollow, the upper horizontal plate 128 is provided with a sliding hole 130, the upper horizontal plate 128 is internally provided with a first baffle 131, the upper horizontal plate 128 is internally provided with a sliding rod 132 in a sliding manner, one end of the sliding rod 132 is provided with a top block 133, the other end is provided with a pressing plate 134, the sliding rod 132 is a prismatic rod, the sliding rod 132 is provided with a mounting groove 135, the mounting groove 135 is internally provided with a first spring 136, the end of the first spring 136 is provided with a first stopper 137, and the first stopper 137 is provided with two first inclined surfaces 138;
The push plate 111 is provided with a first limiting groove 139, and the first limiting block 137 is used for being matched with the first limiting groove 139; the sliding plate is provided with a second baffle plate 140, a second spring 141 is arranged between the first baffle plate 131 and the second baffle plate 140, one end of the second spring 141 is connected with the first baffle plate 131, and the other end is connected with the second baffle plate 140;
The upper transverse plate 128 is further provided with a second limiting groove 142, the upper transverse plate 128 is provided with a locking block 143 in a sliding manner, the locking block 143 is provided with a T-shaped sliding rail 144, the side wall of the upper transverse plate 128 is provided with a T-shaped sliding groove 145, the T-shaped sliding rail 144 is in sliding fit with the T-shaped sliding groove 145, the locking block 143 is provided with a square groove 146, a third spring 147 is arranged inside the square groove 146, the end part of the third spring 147 is provided with a second limiting block 148, the second limiting block 148 is provided with a second inclined surface 149, the wire end plastic shell 101 is provided with a third limiting groove 150 and a pushing hole 151, the third limiting groove 150 is mutually communicated with the pushing hole 151, and the locking block 143 is used for sliding into the locking groove 110.
In the actual use process, after the vertical plate 127 is pushed into the clamping groove 109, the upper surface of the transverse plate rubs against the inner surface of the wire end plastic shell 101, the initial position of the locking block 143 is positioned in the transverse plate, the sliding rod 132 extends out, the pressing plate 134 is not contacted with the vertical plate 127, the jacking block 133 is not contacted with the locking block 143, the vertical plate 127 is pushed until the locking block 143 is positioned right below the locking groove 110, a user presses the pressing plate 134, the sliding plate slides in the upper transverse plate 128, the first baffle 131 and the second baffle 140 press the second spring 141, the thrust of the user on the pressing plate 134 overcomes the elastic force of the second spring 141 until the first limiting block 137 is moved right below the first limiting groove 139, the first spring 136 is not pressed any more, the first limiting block 137 is sprung up, at this time, the first limiting block 137 is positioned in the first limiting groove 139, and the first limiting block 137 is matched with the second limiting groove 142;
At this time, the top block 133 scoops up the locking block 143, in this process, the second limiting block 148 inside the locking block 143 is disengaged from the second limiting groove 142 under the action of the second inclined surface 149, the T-shaped slide rail 144 slides inside the T-shaped slide groove 145, and the main purpose of the T-shaped slide rail 144 and the T-shaped slide groove 145 is to fix the sliding track of the locking block 143, so as to limit the position of the locking block 143; the side wall of the locking groove 110 extrudes the third spring 147 to enable the second limiting block 148 to be located inside the square groove 146, when the top block 133 completely scoops up the locking hole, the second limiting block 148 is matched with the third limiting groove 150 to finish the fixation of the locking block 143, and at the moment, the extrusion block 129 extrudes the cable terminal 102 vertically to clamp and fix the cable terminal 102;
When the vertical plate 127 needs to be pulled out, a thin rod is needed to be inserted into the pushing hole 151, the thin rod overcomes the elasticity of the third spring 147 to jack the second limiting block 148 back into the square groove 146, meanwhile, the sliding rod 132 is pulled out, the first limiting block 137 is disengaged from the first limiting groove 139 due to the existence of the first inclined surface 138, the sliding rod 132 is pulled out, the second spring 141 ejects the sliding rod 132, the left side surface of the top block 133 is contacted with the right side surface of the second baffle 140 to limit the top block 133, at the moment, the locking block 143 falls under gravity, after the positions of the third limiting block and the second limiting groove 142 are matched, the third limiting block is sprung into the second limiting groove 142, the locking hole completely falls into the upper transverse plate 128, and unlocking between the whole locking piece and the clamping groove 109 is completed.
The advantage of this arrangement is that, compared to the elastic member 113, the upper cross plate 128 does not belong to the wearing part, and the elastic member 113 can often be broken easily due to the fact that the elastic member 113 reaches the fatigue limit caused by bending, so that the whole locking member cannot clamp the cable terminal 102, and the locking member fails, and in this embodiment, the locking member is more stably and reliably matched with the locking groove 110 by pushing the locking member 143 by the sliding rod 132.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "both ends," etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of such features in order to be construed as indicating the features of the technology being indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A system structure for optimizing MINI FAKRA impedance and SI performance is characterized in that,
Comprising the following steps:
The wire end plastic shell (101), wherein the wire end plastic shell (101) is provided with a cavity which is penetrated from end to end;
the terminal structure is arranged in the cavity of the wire end plastic shell (101);
The cable terminal (102) is arranged in the cavity of the cable terminal plastic shell (101), one end of the cable terminal (102) is connected with the cable (103), the other end of the cable terminal (102) is provided with an arc bridge-shaped structure (104) and at least four contact spring pieces (105), the arc bridge-shaped structure (104) is provided with a plurality of installation gaps (106), and the number of the installation gaps (106) are matched with the number and the positions of the contact spring pieces (105);
the contact convex points (107), the number of the contact convex points (107) is at least four, the contact convex points (107) are arranged on the arc bridge type structure (104), and the contact elastic sheet (105) and the contact convex points (107) are arranged in the cavity of the wire end plastic shell (101);
The terminal structure comprises a protective shell (116), wherein a metal mounting cylinder (108) is arranged on the protective shell (116), and a plugboard (117) is arranged on the protective shell (116); the shielding partition board is provided with a slot (118), the plugboard (117) is matched with the slot (118), and the protective shell (116) is in interference fit with the shielding partition board; the terminal comprises a plurality of terminal bodies, a plurality of rubber cores and a plurality of rubber cores, wherein the number of the rubber cores corresponds to that of the metal mounting cylinders (108), the rubber cores are mounted in the metal mounting cylinders (108), the number of the terminal bodies corresponds to that of the rubber cores, the terminal bodies are mounted in the rubber cores, the rubber cores are used for coating the terminal bodies, one ends of the terminal bodies are used for being connected with a cable (103) through cable terminals (102), and the other ends of the terminal bodies extend out of the rubber cores;
The shielding partition plate comprises a cross part (119), a mounting part (120) and a supporting part (121), wherein the mounting part (120) and the supporting part (121) are arranged on two sides of the cross part (119), the slot (118) is formed in the mounting part (120), the supporting part (121) is detachably connected with the protective shell (116), and the cross part (119), the mounting part (120) and the supporting part (121) are connected with each other to form four quadrants;
The terminal body comprises an L-shaped long terminal (122) and an L-shaped short terminal (123), the rubber core comprises a long rubber core (124) and a short rubber core (125), the long rubber core (124) is used for wrapping the L-shaped long terminal (122), the short rubber core (125) is used for wrapping the L-shaped short terminal (123), the long rubber core (124) and the short rubber core (125) are used for being installed in a cross part (119), an installation part (120) and a supporting part (121) after being connected with each other to form four quadrants, the long rubber core (124) is installed in a first quadrant and a second quadrant, and the short rubber core (125) is installed in a third quadrant and a fourth quadrant;
The locking piece comprises a vertical plate (127), two transverse plates and an extrusion block (129), wherein the transverse plates are arranged at the upper end and the lower end of the locking piece, the extrusion block (129) is connected with the vertical plate (127), the extrusion block (129) is positioned between the two transverse plates, the transverse plates above the vertical plate (127) are internally hollow, the transverse plates above the vertical plate (127) are hereinafter called as 'upper transverse plates (128)', sliding holes (130) are formed in the upper transverse plates (128), a first baffle (131) is arranged in the upper transverse plates (128), a sliding rod (132) is arranged in the upper transverse plates (128) in a sliding mode, a top block (133) is arranged at one end of the sliding rod (132), a pressing plate (134) is arranged at the other end of the sliding rod (132), a prismatic rod is arranged on the sliding rod (132), a mounting groove (135) is formed in the mounting groove (135), a first spring (136) is arranged at the end of the first spring (136), and two first inclined surfaces (138) are arranged on the first limiting block (137);
The push plate (111) is provided with a first limit groove (139), and the first limit block (137) is used for being matched with the first limit groove (139); the sliding plate is provided with a second baffle (140), a second spring (141) is arranged between the first baffle (131) and the second baffle (140), one end of the second spring (141) is connected with the first baffle (131), and the other end is connected with the second baffle (140);
The upper transverse plate (128) is further provided with a second limiting groove (142), the upper transverse plate (128) is provided with a locking block (143) in a sliding manner, the locking block (143) is provided with a T-shaped sliding rail (144), the side wall of the upper transverse plate (128) is provided with a T-shaped sliding groove (145), the T-shaped sliding rail (144) is in sliding fit with the T-shaped sliding groove (145), the locking block (143) is provided with a square groove (146), a third spring (147) is arranged in the square groove (146), the end part of the third spring (147) is provided with a second limiting block (148), the second limiting block (148) is provided with a second inclined surface (149), the wire end plastic shell (101) is provided with a third limiting groove (150) and a pushing hole (151), and the third limiting groove (150) and the pushing hole (151) are mutually communicated, and the locking block (143) is used for sliding into the locking groove (110).
2. A system architecture for optimizing MINI FAKRA impedance and SI performance as defined in claim 1, wherein: the terminal structure is provided with metal mounting barrels (108), the number of the metal mounting barrels (108) corresponds to the number of the cable terminals (102), and the cable terminals (102) are used for being inserted into the metal mounting barrels (108); the contact spring piece (105) and the contact salient point (107) are contacted with the inner surface of the wire end plastic shell (101).
3. A system architecture for optimizing MINI FAKRA impedance and SI performance as defined in claim 1, wherein: both sides face of line end mould shell (101) all is equipped with draw-in groove (109), is used for installing the retaining member in draw-in groove (109), and the retaining member is used for being connected with line end mould shell (101) can be dismantled, and the terminal surface of retaining member is used for closely laminating with a plurality of cable terminals (102).
4. A system architecture for optimizing MINI FAKRA impedance and SI performance as in claim 3, wherein: the upper surface and the lower surface of the wire end plastic shell (101) are respectively provided with a locking groove (110), and the locking piece is clamped with the locking grooves (110) to realize detachable matching with the wire end plastic shell (101).
5. A system architecture for optimizing MINI FAKRA impedance and SI performance as defined in claim 1, wherein: the bottom of cross portion (119) and protective housing (116) all are equipped with location arch (126).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311771797.0A CN117913569B (en) | 2023-12-21 | 2023-12-21 | System structure for optimizing MINI FAKRA impedance and SI performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311771797.0A CN117913569B (en) | 2023-12-21 | 2023-12-21 | System structure for optimizing MINI FAKRA impedance and SI performance |
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| CN117913569B true CN117913569B (en) | 2024-10-01 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210379629U (en) * | 2019-10-22 | 2020-04-21 | 东莞立讯智连电子科技有限公司 | Connector assembly |
| CN115911928A (en) * | 2023-02-14 | 2023-04-04 | 苏州瑞可达连接系统股份有限公司 | Vehicle-mounted connector terminal and assembling method thereof |
| CN219937516U (en) * | 2023-05-31 | 2023-10-31 | 惠州奥华智能科技有限公司 | Four-coaxial line end connector for high-speed data transmission of automobile |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209016312U (en) * | 2018-07-31 | 2019-06-21 | 安费诺电子装配（厦门）有限公司 | A kind of line-end connector and connector assembly |
| CN109286093B (en) * | 2018-10-26 | 2020-05-12 | 宣城立讯精密工业有限公司 | A kind of interface unit |
| WO2023034396A1 (en) * | 2021-09-01 | 2023-03-09 | Fci Usa Llc | High speed, ruggedized connector |
| CN115021004A (en) * | 2022-05-27 | 2022-09-06 | 中航光电科技股份有限公司 | Cable connector and high-speed cable connector assembly |
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2023
- 2023-12-21 CN CN202311771797.0A patent/CN117913569B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210379629U (en) * | 2019-10-22 | 2020-04-21 | 东莞立讯智连电子科技有限公司 | Connector assembly |
| CN115911928A (en) * | 2023-02-14 | 2023-04-04 | 苏州瑞可达连接系统股份有限公司 | Vehicle-mounted connector terminal and assembling method thereof |
| CN219937516U (en) * | 2023-05-31 | 2023-10-31 | 惠州奥华智能科技有限公司 | Four-coaxial line end connector for high-speed data transmission of automobile |
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| CN117913569A (en) | 2024-04-19 |
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