Side vertical quick-charging connector
Technical Field
The invention relates to the connector field technology, in particular to a side-standing quick-charging connector.
Background
With the continuous update and development of electronic products, electronic products are also continuously popularized in life, and demands of consumers for miniaturization of electronic products are increasing. The USB electric connector gradually becomes the development trend of modern data transmission by virtue of the advantages of rapidness, plug and play, convenient use and installation and the like. At present, the USB electrical connector becomes a mainstream interface of a computer, a mobile phone charger, and a vehicle-mounted charger related device, and with further improvement of the USB interface technology, application of the USB interface technology will be further expanded.
Currently, the existing electrical connectors are divided into two types, namely a lying electrical connector and a side-plug electrical connector. The tongue plate of the lying type electric connector is approximately parallel to the circuit board connected with the tongue plate, so that the tongue plate occupies a wider area of the circuit board. The tongue plate of the side-inserted electric connector is approximately perpendicular to the circuit board connected with the tongue plate, so that the use area of the circuit board can be reduced, and the development of miniaturization of electronic products is facilitated.
The existing side plug connector has the following disadvantages:
1. As shown in fig. 1, when the quick-charging terminal is placed in the injection mold to injection mold the insulating main body, the fixed end holes 101' are arranged at a row of longitudinal intervals, so that the arrangement can prevent the plastic from flowing, and the distribution can occur, so that the condition that the product is not easy to saturate can occur, and the condition that the insulating main body is not full can be caused.
2. The plug ends of the plurality of conductive terminals are too close to each other, so that there is a problem of signal crosstalk between the terminals.
3. The plugging ends of the plurality of conductive terminals are basically exposed outside the connector, impurities and the like contact the part, so that the short circuit of the connector is easily caused, the service life of a product is influenced, and meanwhile, electromagnetic waves are exposed, and the EMI effect of the product is poor.
4. The front ends of the plugging ends of the plurality of conductive terminals are not pre-pressed, so that the high sizes of the terminal pins are inconsistent, and when the male and female terminals are plugged, the terminals easily cause the problem of Pin bursting, so that the connector is unstable.
5. The existing side-standing connector is poor in waterproof and antifouling performance, stains and the like can easily enter the connector, so that the connector is short-circuited, and the use is affected.
Disclosure of Invention
In view of the above, the present invention aims at overcoming the drawbacks of the prior art, and its main objective is to provide a side-standing quick-charging connector, which effectively solves the problem of difficult mold saturation during injection molding, solves the problem of signal crosstalk between terminals, solves the problem that the plugging ends of a plurality of conductive terminals are completely exposed to affect the service life and the EMI effect, and solves the problem that the terminals easily cause crumple and have poor waterproof and antifouling properties.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The side-standing quick-charging connector comprises an insulating main body, a plurality of terminals and a shielding shell, wherein the insulating main body comprises a base and a tongue plate which are integrally connected, the terminals are arranged on the insulating main body, the contact ends of the terminals are exposed out of the surface of the tongue plate, the insertion ends of the terminals extend out of one side of the base, the shielding shell is wrapped on the outer surface of the insulating main body, and the shielding shell is provided with an insertion cavity with a forward opening and is characterized in that:
The top surface of the base extends upwards to form a heightening part which extends out of the shielding shell upwards, a row of end spaces are concavely formed in the heightening part and the rear side surface of the base, a mounting plate extends forwards from one side of the front side surface of the base, a step is formed in the inner side surface of the mounting plate, and the rear side surface of the shielding shell is propped against the step for positioning;
The terminals comprise a quick charge terminal and a plurality of conductive terminals positioned at two sides of the quick charge terminal, wherein the quick charge terminal is embedded and formed on an insulating main body, the quick charge terminal comprises a flat contact part, a main body part, a connecting part and an inserting part which are sequentially and integrally formed and connected, the flat contact part is exposed out of the upper surface of the front end of a tongue plate, the main body part is embedded in the tongue plate, two fixed end holes which are longitudinally arranged at intervals are concavely arranged on the upper surface of the front end of the tongue plate, the two fixed end holes are arranged in a left-right staggered manner, the upper surface of the main body part is exposed out of the two fixed end holes, the connecting part is embedded in a base, the connecting part is of a multi-section bending structure, and the inserting part extends out of the outer side surface of the mounting plate;
The insulation main body is provided with a plurality of terminal grooves, the plurality of conductive terminals are inserted into the corresponding terminal grooves, the front ends of the terminal grooves are provided with hanging tables which pre-press the front ends of the conductive terminal contact ends, the front ends of the conductive terminal contact ends are propped against the hanging tables, the insertion ends of the plurality of conductive terminals are arranged in the row end space at intervals, and the tail ends of the insertion ends of the plurality of conductive terminals extend out from the same outer side of the base and the heightening part in a row;
The outer surface of the sealing plate is covered with an EMI shielding sheet, and the EMI shielding sheet is arranged on the shielding shell;
The shielding shell and the heightening part are wrapped with a shell, and a first mounting structure, a second mounting structure and a third mounting structure are arranged on the inner wall of the shell at intervals;
A plurality of spacer blocks are arranged on the inner side surface of the sealing plate at intervals, and are positioned between the corresponding adjacent conductive terminal plugging ends;
The connecting part comprises a first connecting section, a second connecting section and a third connecting section, wherein the first connecting section extends downwards in an inclined mode at the rear end of the main body part, the rear end of the first connecting section of the second connecting section bends leftwards to extend, the third connecting section extends upwards in an inclined mode at the left end of the second connecting section, and the inserting part is integrally formed with the front side of the third connecting section.
As a preferable scheme, a positioning column is convexly arranged in the row-end space, a positioning hole is correspondingly formed in the inner surface and the outer surface of the sealing plate in a penetrating way, the positioning column is inserted into the positioning hole for positioning, a positioning block is convexly arranged on the bottom surface of the sealing plate, the front end of the positioning block is in a slope shape convenient for insertion, the bottom surface of the positioning block is tightly inserted and matched with the inner wall of the bottom surface of the row-end space, and the top surface of the sealing plate is tightly contacted and fixed with the inner wall of the top surface of the row-end space.
As a preferable scheme, a first plugboard and a second plugboard extend backwards from the upper edge of the rear end of the shielding shell, and a first plugboard and a second plugboard correspondingly penetrate through the front side surface and the rear side surface of the heightening part, and the first plugboard is inserted into the first plugboard for positioning; the second plugboard is inserted into the second jack for positioning, an elastic clamping block is formed on the second plugboard in a punching mode, a clamping groove is formed in the bottom surface of the second jack correspondingly in a concave mode, the elastic clamping block is clamped into the clamping groove, a third plugboard extends backwards from the lower edge of the rear end of the shielding shell, a third jack is formed in the bottom surface of the base correspondingly in a concave mode, and the third plugboard is inserted into the third jack for positioning.
As a preferable scheme, the EMI shielding sheet is bent forwards and provided with a fixing arm, a buckling groove is penetrated through the fixing arm, a buckling block is arranged on the surface of the shielding shell in a protruding mode, the buckling block is buckled and fixed with the buckling groove, and a reinforcing rib for reinforcing the structural strength of the fixing arm is arranged at the bending position of the fixing arm in a protruding mode.
As a preferable scheme, two first pins are punched on one side of the rear end of the shielding shell, a notch is formed at the position of the shielding shell corresponding to the punched two first pins, the mounting plate covers the notch, the two first pins extend outwards, and the first pins are in a harpoon shape.
As a preferable scheme, two second pins extend out of the same side of the first pin, and the second pins are attached together up and down.
As a preferable scheme, grooves for reducing dielectric constants are concavely formed on both sides of the upper surface of the tongue plate corresponding to the flat plate contact part and on the lower surface of the tongue plate corresponding to the bottom surface of the flat plate contact part.
The first mounting structure is a plurality of first plug-in blocks, the first plug-in blocks are arranged on the upper inner wall and the lower inner wall of the front end of the shell at intervals, the first plug-in blocks are tightly inserted and fixed with the outer wall of the shielding shell, the second mounting structure is a plurality of second plug-in blocks, the second plug-in blocks are arranged on the upper inner wall and the lower inner wall of the rear end of the shell at intervals, the second plug-in blocks are tightly inserted and fixed with the outer wall of the heightening part, the third mounting structure is a plurality of third plug-in blocks, the third plug-in blocks are arranged on the rear inner wall of the rear end of the shell at intervals, the third plug-in blocks are tightly inserted and fixed with the outer wall of the EMI shielding piece, and the left ends of the first plug-in blocks, the second plug-in blocks and the third plug-in blocks are slope guide plug-in structures.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:
1. through changing the arrangement mode of the fixed end holes into two rows of dislocation type, the plastic can be prevented from being shunted due to the fixed end holes when flowing, and therefore the condition that an insulating main body is not full is avoided.
Through will add the portion of rising on the base, increased the space of arranging of the tail end of a plurality of conductive terminal grafting ends, make the distance between the tail end of two adjacent conductive terminal grafting ends draw bigger, it is more reasonable to arrange, reduces the signal interference between two adjacent conductive terminals.
By sealing a sealing plate in the row-end space, the sealing plate seals the plugging ends of the plurality of conductive terminals, and the plugging ends are prevented from being exposed, so that impurities are effectively prevented from entering the row-end space, and the service life of the product is prolonged. And meanwhile, the EMI shielding sheet is covered outside the sealing plate, so that electromagnetic waves are effectively prevented from being exposed, and the EMI shielding effect of the connector is further enhanced.
Through being equipped with the hanging table at the front end of terminal groove to make conductive terminal contact end play the pre-compaction, the high size uniformity of terminal bullet is good, and can prevent public mother to inserting the time, the Pin problem of bursting that leads to because of the terminal is outcrop, thereby make the connector more stable.
Through the setting of shrouding, EMI shielding piece and shell to three partition walls have been formed, thereby effectively avoid impurity to get into in the connector, improve the life of product.
2. Grooves for reducing dielectric constants are concavely formed on two sides of the upper surface of the tongue plate corresponding to the flat plate contact part and on the bottom surface of the lower surface of the tongue plate corresponding to the flat plate contact part, so that signal transmission is facilitated. A plurality of spacer blocks are arranged on the inner side surface of the sealing plate in a protruding mode at intervals, the spacer blocks are located between the splicing ends of the corresponding adjacent conductive terminals, and the spacer blocks separate the adjacent terminals, so that crosstalk phenomenon generated when signals of the adjacent two signal terminals are transmitted is effectively improved.
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of a prior art fixed end hole in a row of longitudinally spaced apart arrangement;
FIG. 2 is a schematic view of the invention in which the fixed end holes are arranged at staggered intervals;
FIG. 3 is a perspective view of a preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view of a preferred embodiment of the present invention;
FIG. 5 is a partially exploded view of the preferred embodiment of the present invention;
FIG. 6 is a fully exploded view of the preferred embodiment of the present invention;
FIG. 7 is another partially exploded view of the preferred embodiment of the present invention;
FIG. 8 is a perspective view of the quick charge terminal in accordance with the preferred embodiment of the present invention;
fig. 9 is a perspective view of an insulating body in a preferred embodiment of the present invention.
The attached drawings are used for identifying and describing:
10. Insulating body 11, base
12. Tongue 13 and heightening part
14. Mounting plate 141, step
15. Hanging table 16 and positioning column
101. End-row space 102, groove
103. Fixed end hole 104 and terminal groove
105. First jack 106, second jack
1061. Clamping groove
107. Third jack 20, terminal
21. Quick charge terminal 211, flat contact
212. Body 213, connection
2131. First connecting segment 2132 and second connecting segment
2133. Third connecting section 214, plug-in connection
22. Conductive terminal 201, contact terminal
202. Plug end 30, shielding shell
301. Insertion cavity 302, notch
31. First plugboard 32, second plugboard
321. Elastic clamping block 33, third plugboard
34. Button block 35, first pin
36. Second pin 40 and sealing plate
401. Positioning hole 41, positioning block
42. Spacer 50 and EMI shielding sheet
51. Fixing arm 511 and reinforcing rib
501. Fastening groove 60, casing
61. First mounting structure (first plug-in block) 62, second mounting structure (second plug-in block)
63. Third mounting structure (third plug-in block).
Detailed Description
Referring to fig. 2 to 9, a specific structure of a preferred embodiment of the present invention is shown, which includes an insulating body 10, a plurality of terminals 20, and a shielding case 30.
The insulating body 10 includes a base 11 and a tongue plate 12 integrally connected, and a raised portion 13 extends upward from the top surface of the base 11, and the raised portion 13 protrudes upward from the shield case 30. A row of end spaces 101 are concavely arranged on the rear side surfaces of the heightening part 13 and the base 11. And the front side of the base 11 is extended forward to form a mounting plate 14, the inner side of the mounting plate 14 is provided with a step 141, and the rear side of the shield 30 is positioned against the step 141, thereby facilitating the assembly of the shield 30.
The plurality of terminals 20 are disposed on the insulating body 10, the contact ends 201 of the plurality of terminals 20 are exposed from the surface of the tongue plate 12, and the insertion ends 202 of the plurality of terminals 20 extend from one side of the base 10. Specifically, the terminals 20 include a quick charge terminal 21 and a plurality of conductive terminals 22 located on both sides of the quick charge terminal 21. The quick charge terminal 21 is insert molded on the insulating body 10, and the quick charge terminal 21 includes a flat contact portion 211, a main body portion 212, a connection portion 213, and a plug portion 214, which are integrally molded and connected in sequence. The flat contact portion 211 is exposed on the upper surface of the front end of the tongue plate 12, and the flat contact portion 211 is formed by radially expanding and extending the front end of the main body portion 212, i.e. the width of the flat contact portion 211 is larger than the width of the main body portion 212, so that the externally inserted plug contacts are electrically abutted. And grooves 102 for reducing dielectric constant are concavely arranged on both sides of the upper surface of the tongue plate 12 corresponding to the flat plate contact part 211 and on the bottom surface of the lower surface of the tongue plate 12 corresponding to the flat plate contact part 211, so that signal transmission is facilitated.
The main body 212 is embedded in the tongue plate 12, two fixed end holes 103 are concavely arranged on the upper surface of the front end of the tongue plate 12 at intervals, the two fixed end holes 103 are arranged in a left-right staggered manner, the upper surface of the main body 212 is exposed out of the two fixed end holes 103, when the insulating main body 10 is injection molded, the quick-charging terminal 21 is firstly placed in a mold cavity to form the insulating main body 10, the mold needs to press the terminal, so that the fixed end holes 103 are formed, the traditional fixed end holes 103 are arranged at intervals in a row of longitudinal directions, the plastic flow is blocked during injection molding, and the condition that the product is not easy to saturate can often occur. The arrangement mode of the fixed end holes 103 is changed into two rows of dislocation mode, so that the plastic can be prevented from being split due to the fixed end holes 103 (shown in fig. 2) when flowing, and the condition that the insulating main body 10 is not full is avoided.
The connecting portion 213 is embedded in the base 11, the connecting portion 213 has a multi-section bent structure, and specifically, the connecting portion 213 includes a first connecting section 2131, a second connecting section 2132 and a third connecting section 2133, and the first connecting section 2131 extends obliquely downward from the rear end of the main body 212. The second connecting segment 2132 extends from the rear end of the first connecting segment 2131. The third connecting section 2133 extends obliquely upward from the left end of the second connecting section 2132, and the plugging portion 214 is integrally formed with the front side of the third connecting section 2133. Through the arrangement of the first connecting section 2131, the second connecting section 2132 and the third connecting section 2133, the connecting parts 213 are all embedded in the base and the connecting parts 213 are in a multi-section bending structure, so that the connection strength of the quick charge terminal 21 on the insulating main body 10 is ensured. The plugging portion 214 extends out of the outer side surface of the mounting plate 14, so that the structural layout of the plugging portion is more reasonable.
The insulating body 10 is provided with a plurality of terminal grooves 104, and the plurality of conductive terminals 22 are inserted into the corresponding terminal grooves 104. The front end of the terminal groove 104 is provided with the hanging table 15 which plays a role in prepressing the front end of the contact end of the conductive terminal, and the front end of the contact end 201 of the conductive terminal 22 is propped against the hanging table 15, so that the contact end 201 of the conductive terminal 22 is prepressed, the high-elastic size consistency of the terminal is good, and the problem of Pin bursting caused by the outcrop of the terminal when the male and female are plugged can be prevented, so that the connector is more stable. The plugging ends 202 of the plurality of conductive terminals 22 are arranged in the row end space 101 at intervals, and the row end space 101 is convenient for plugging the plurality of conductive terminals 22, so that the plugging efficiency is improved, and the plugging ends 202 of the conductive terminals 22 are hidden in the row end space 101, thereby being beneficial to protection. And the tail ends of the plurality of conductive terminals 22 are arranged on the same outer side of the base 11 and the heightening part 13 in a row, and the heightening part 13 is arranged, so that the arrangement space of the tail ends of the plurality of conductive terminals 22 is increased, the distance between the tail ends of the adjacent two conductive terminals 22 and the tail ends of the adjacent two conductive terminals 22 is larger, the arrangement is more reasonable, and the signal interference between the adjacent two conductive terminals 22 is reduced.
The shielding shell 30 is wrapped on the outer surface of the insulating main body 10, and the shielding shell 30 is provided with a front opening insertion cavity 301. The upper edge of the rear end of the shielding shell 30 is extended backwards to form a first plugboard 31 and a second plugboard 32, and a first plugboard 105 and a second plugboard 106 are penetrated through the front side surface and the rear side surface of the heightening part 13 correspondingly, and the first plugboard 31 is inserted into the first plugboard 105 for positioning. The second inserting plate 32 is inserted into the second inserting hole 106 to be positioned, and an elastic clamping block 321 is formed on the second inserting plate 32 in a punching manner, and correspondingly, a clamping groove 1061 is concavely formed on the bottom surface of the second inserting hole 106, and the elastic clamping block 321 is clamped into the clamping groove 1061 to be fixed, so that the connection between the shielding shell 30 and the insulating main body 10 is firmer. A third plugboard 33 extends backward from the lower edge of the rear end of the shielding shell 30, and correspondingly, a third plughole 107 is concavely formed in the bottom surface of the base 11, and the third plugboard 33 is inserted into the third plughole 107 for positioning.
Two first pins 35 are punched on one side of the rear end of the shielding shell 30, a notch 302 is formed at the position of the shielding shell corresponding to the punched two first pins, and the mounting plate 14 covers the notch 302, so that impurities are effectively prevented from entering the inserting cavity 301. The two first pins 35 extend outwards, and the first pins 35 are in a fish-fork shape, which is beneficial to plugging. Two second pins 36 extend from the same side of the first pin 35, and the second pins 36 are attached together up and down, so that the structural strength of the two second pins 36 is increased, and breakage and bending during plugging are avoided.
A sealing plate 40 is disposed in the end-row space 101, the sealing plate 40 seals the plugging ends 202 of the plurality of conductive terminals 22, specifically, a positioning column 16 is disposed in the end-row space 101 in a protruding manner, and corresponding positioning holes 401 are formed in the inner and outer surfaces of the sealing plate 40 in a penetrating manner, and the positioning columns 16 are inserted into the positioning holes 401 for positioning. And the bottom surface of the sealing plate 40 is convexly provided with a positioning block 41, the front end of the positioning block 41 is in a slope shape convenient for insertion, the bottom surface of the positioning block 41 is tightly inserted and matched with the inner wall of the bottom surface of the row end space 101, and the top surface of the sealing plate 40 is tightly contacted and fixed with the inner wall of the top surface of the row end space 101, so that the sealing plate 40 is firmly arranged in the row end space 101. The inner side surface of the sealing plate 40 is provided with a plurality of spacer blocks 42 in a protruding manner, and the plurality of spacer blocks 42 are positioned between the plugging ends 202 of the corresponding adjacent conductive terminals 22, and the spacer blocks 42 separate the adjacent terminals, so that the crosstalk phenomenon generated when signals of the adjacent two signal terminals are transmitted is effectively improved. The setting of shrouding 40 presses the grafting end 202 of a plurality of conductive terminal 22 in arranging end space 101 to better location installation, and shrouding 40 covers the grafting end 202 of a plurality of conductive terminal 22 and forms first barrier wall, thereby effectively avoids impurity to get into arranging in the end space 101, improves the life of product.
The outer surface of the sealing plate 40 is covered with an EMI shielding sheet 50, the EMI shielding sheet 50 is mounted on the shielding shell 30, specifically, the EMI shielding sheet 50 is bent forward with a fixing arm 51, the fixing arm 51 is penetrated with a fastening slot 501, correspondingly, the surface of the shielding shell 30 is convexly provided with a fastening block 34, the fastening block 34 is fastened and fixed with the fastening slot 501, and the bending part of the fixing arm 51 is convexly provided with a reinforcing rib 511 for reinforcing the structural strength of the fixing arm. The EMI shielding sheet 50 effectively prevents the electromagnetic waves from being exposed, thereby further enhancing the EMI shielding effect of the connector, and at the same time, the EMI shielding sheet 50 forms a second barrier wall, further preventing the entry of foreign substances into the terminal discharge space 101.
The shielding shell 30 and the raised portion 13 are wrapped with a housing 60, and the housing 60 forms a third barrier wall, again further preventing impurities from entering the end discharge space 101. The housing 60 has first, second and third mounting structures 61, 62 and 63 spaced apart from each other on an inner wall thereof. The first mounting structure 61 is fixedly engaged with the shield case 30, specifically, the first mounting structure 61 is a plurality of first plug-in blocks 61, the plurality of first plug-in blocks 61 are arranged on the upper and lower inner walls of the front end of the housing 60 at intervals, and the plurality of first plug-in blocks 61 are fixedly inserted with the outer wall of the shield case 30. The second mounting structure 62 is fixed in cooperation with the raised portion 13, specifically, the second mounting structure 62 is a plurality of second plug-in blocks 62, the plurality of second plug-in blocks 62 are arranged on the upper and lower inner walls of the rear end of the housing 60 at intervals, and the plurality of second plug-in blocks 62 are tightly inserted and fixed with the outer wall of the raised portion 13. The third mounting structure 63 is fixed in cooperation with the EMI shielding sheet 50, specifically, the third mounting structure 63 is a plurality of third plugging blocks 63, the plurality of third plugging blocks 63 are arranged on the inner wall of the rear end of the housing 60 at intervals, and the plurality of third plugging blocks 63 are tightly plugged and fixed with the outer wall of the EMI shielding sheet 50. And the left ends of the first plug-in block 61, the second plug-in block 62 and the third plug-in block 63 are all slope-shaped guide plug-in structures. By the arrangement of the first mounting structure 61, the second mounting structure 62 and the third mounting structure 63, the connector is in contact and tightly inserted fixation with the shell 60 at a plurality of positions, so that the mounting is more stable.
When assembling, the quick-charge terminal 21 is put into an injection mold, the insulating main body 10 is injection molded, the quick-charge terminal 21 and the insulating main body 10 are insert molded, the shielding shell 30 and the conductive terminal 22 are assembled on the insulating main body 10, the sealing plate 40 is assembled at a corresponding position, the EMI shielding sheet 50 covers the sealing plate 40, and finally the whole connector is inserted into the shell 60.
The design focus of the invention is that:
Through changing the arrangement mode of the fixed end holes into two rows of dislocation type, the plastic can be prevented from being shunted due to the fixed end holes when flowing, and therefore the condition that an insulating main body is not full is avoided. Through will add the portion of rising on the base, increased the space of arranging of the tail end of a plurality of conductive terminal grafting ends, make the distance between the tail end of two adjacent conductive terminal grafting ends draw bigger, it is more reasonable to arrange, reduces the signal interference between two adjacent conductive terminals. By sealing a sealing plate in the row-end space, the sealing plate seals the plugging ends of the plurality of conductive terminals, and the plugging ends are prevented from being exposed, so that impurities are effectively prevented from entering the row-end space, and the service life of the product is prolonged. And meanwhile, the EMI shielding sheet is covered outside the sealing plate, so that electromagnetic waves are effectively prevented from being exposed, and the EMI shielding effect of the connector is further enhanced. Through being equipped with the hanging table at the front end of terminal groove to make conductive terminal contact end play the pre-compaction, the high size uniformity of terminal bullet is good, and can prevent public mother to inserting the time, the Pin problem of bursting that leads to because of the terminal is outcrop, thereby make the connector more stable. Through the setting of shrouding, EMI shielding piece and shell to three partition walls have been formed, thereby effectively avoid impurity to get into in the connector, improve the life of product. Grooves for reducing dielectric constants are concavely formed on two sides of the upper surface of the tongue plate corresponding to the flat plate contact part and on the bottom surface of the lower surface of the tongue plate corresponding to the flat plate contact part, so that signal transmission is facilitated. A plurality of spacer blocks are arranged on the inner side surface of the sealing plate in a protruding mode at intervals, the spacer blocks are located between the splicing ends of the corresponding adjacent conductive terminals, and the spacer blocks separate the adjacent terminals, so that crosstalk phenomenon generated when signals of the adjacent two signal terminals are transmitted is effectively improved.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention are still within the scope of the technical solutions of the present invention.