Horizontal connector

Abstract

The present invention relates to a horizontal connector, comprising: a housing and a plurality of terminal assemblies. The housing is provided with a fitting slot for mounting of the terminal assemblies and AIC cards. Each terminal assembly comprises: a terminal group and a molded member, the terminal group consisting of a ground terminal, a first signal terminal and a second signal terminal. First openings are evenly provided in the positions of the housing corresponding to terminal heads. Second openings are evenly provided in the positions of the housing corresponding to moment arm areas of the ground terminals. Serrated mounting holes are provided in the first openings and used for limiting the height of the terminal heads. Changing the structure of the housing and optimizing the terminal structure directly achieve the purposes of optimizing the characteristic impedance of the terminal groups and effectively improving the SI performance of the horizontal connector, reduce the manufacturing cost required by a conventional SI performance optimization solution, simplify manufacturing processes, shorten production time, and improve the pass rate of products.

Description

A horizontal connector Technical Field

[0001] This invention relates to the field of connector technology, and more specifically, to a horizontal connector. Background Technology

[0002] Connectors are mating devices that connect two active devices to transmit current or signals. Because they simplify the assembly process of electronic products, are easy to maintain, easy to upgrade, and can improve design flexibility, they are widely used in fields such as computers, electronics, automobiles, communications, and industrial automation.

[0003] SI performance (Electrical and Signal Integrity) is a crucial indicator for connectors. It measures the connector's characteristic impedance, insertion loss and return loss, near-end crosstalk and far-end crosstalk to ensure the connector meets its connectivity requirements. Conventional SI performance optimization methods include adding shielding shells, soldering, and conductive plastics to shield or filter external interference signals. However, these optimization methods not only increase design and manufacturing costs and complicate processes but also extend production time and negatively impact product yield. Technical issues

[0004] The technical problem to be solved by the present invention is to provide a horizontal connector to improve the SI performance of the horizontal connector, in view of the above-mentioned defects of the prior art. Technical solutions

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: a horizontal connector is proposed, comprising: a housing and multiple terminal assemblies. The housing is provided with a slot for installing the terminal assemblies and an AIC card. The terminal assembly includes: a terminal group and a molded part. The terminal group consists of a ground terminal, a first signal terminal and a second signal terminal. A first opening is uniformly provided on the housing at a position corresponding to the terminal head. A second opening is uniformly provided on the housing at a position corresponding to the lever arm area of ​​the ground terminal. The first opening is provided with a serrated mounting hole for limiting the height of the terminal head.

[0006] Furthermore, the terminal assembly includes: a first terminal assembly, a second terminal assembly, a third terminal assembly, and a fourth terminal assembly. The first terminal assembly and the third terminal assembly are disposed opposite each other in the left slot of the card slot, and the second terminal assembly and the fourth terminal assembly are disposed opposite each other in the right slot of the card slot. The number of terminals in the left slot and the right slot can be combined in different ways to meet the connection needs of different AIC cards.

[0007] Furthermore, the first signal terminal, ground terminal, and second signal terminal have the same terminal width in the contact area, and the gap between adjacent terminals is the same; in the terminal lever area, the first signal terminal and the second signal terminal have symmetrical structures, and the gap between adjacent terminals is the same, and the width of the ground terminal is greater than the width of the first signal terminal and the second signal terminal; in the terminal sealing area, the width of the ground terminal is greater than the width of the first signal terminal and the second signal terminal, and a long straight section is provided at the junction of the terminal group and the molded part.

[0008] Furthermore, the molded part has an opening, the opening being positioned directly opposite the ground terminal.

[0009] Furthermore, it also includes: a rear plug, which is disposed between the upper row of terminal groups and the lower row of terminal groups, and the gap between the rear plug and the upper row of terminal groups, and between the rear plug and the lower row of terminal groups, has different values ​​at different positions of the rear plug;

[0010] The gap relationship between the rear plug and the upper and lower terminal groups satisfies: vertical gap F = vertical gap E > vertical gap D > vertical gap B = vertical gap A > vertical gap C.

[0011] Furthermore, it also includes: metal keys, which are disposed on both sides of the slot;

[0012] The metal key has an arc-shaped portion at the top, a double-spring wall structure on both sides of the bottom of the metal key, a chamfer on the outer bottom of the double-spring wall structure, and a first support arm on both sides of the middle of the metal key.

[0013] Furthermore, the outer shell includes a first rib, which is respectively disposed on both sides of the slot and opposite to the inner side of the upper wall and the inner side of the lower wall of the outer shell.

[0014] Furthermore, the outer shell is provided with a stepped mounting groove, the front surface of the molded part is provided with a chamfer, and the upper or lower surface of the front molded part is provided with a trapezoidal protrusion.

[0015] Furthermore, the front molded part includes a dovetail groove and a dovetail tenon, and the upper and lower molded parts are connected by the dovetail groove and the dovetail tenon.

[0016] The dovetail tenon has a second raised rib on its surface.

[0017] Furthermore, the upper and lower walls of the outer shell are evenly provided with mounting openings, and the molded part is provided with protrusions.

[0018] Furthermore, it also includes: a fixing member, which is located at the bottom of the side wall of the slot, a spring wall structure on one side of the fixing member, a stepped structure on the other side of the fixing member, a chamfer on the outer side of the spring wall structure and the stepped structure, and a second support arm.

[0019] Furthermore, it also includes: a Mylar suction surface, which is fixedly connected to the outer side of the upper wall of the housing. Beneficial effects

[0020] The horizontal connector of the present invention has the following advantages: by changing the structure of the housing and optimizing the terminal structure, the characteristic impedance of the terminal group can be directly optimized, the SI performance of the horizontal connector can be effectively improved, the manufacturing cost required for conventional SI performance optimization schemes can be reduced, the process can be simplified, the production time can be reduced, and the product qualification rate can be improved. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0022] Figure 1 shows a three-dimensional structural schematic diagram of the horizontal connector of the present invention;

[0023] Figure 2 shows a front view of the horizontal connector of the present invention;

[0024] Figure 3 shows a schematic diagram of the structure of the housing of the horizontal connector of the present invention;

[0025] Figure 4 shows a schematic diagram of the terminal structure of the horizontal connector of the present invention;

[0026] Figure 5 shows a side view of the rear plug and terminal assembly of the horizontal connector of the present invention;

[0027] Figure 6 shows an exploded structural diagram of the upper and lower front molded parts.

[0028] Figure 7 is a sectional view along the BB direction of the horizontal connector shown in Figure 2;

[0029] Figure 8 is an enlarged view of part I shown in Figure 7;

[0030] Figure 9 shows a schematic diagram of the metal key structure of the horizontal connector of the present invention;

[0031] Figure 10 is a sectional view along line AA of the horizontal connector shown in Figure 2;

[0032] Figure 11 shows a schematic diagram of the fixing component of the horizontal connector of the present invention;

[0033] Figure 12 is a cross-sectional view along the CC direction of the horizontal connector shown in Figure 2;

[0034] Figure 13 shows a schematic diagram of the terminal assembly structure of the horizontal connector of the present invention.

[0035] Explanation of icon numbers:

[0036] The outer casing 100, the card slot 110, the first opening 120, the mounting hole 121, the second opening 130, the metal channel 140, the first positioning protrusion 141, the first concave surface 142, the first rib 150, the mounting groove 160, the first mounting groove 161, the second mounting groove 162, the third mounting groove 163, the stepped protrusion 170, the mounting port 180, the fixing groove 190, the second positioning protrusion 191, the second concave surface 192, and the Mylar suction surface 101;

[0037] Terminal 200, ground terminal 210, first signal terminal 220, second signal terminal 230, upper terminal group 240, first terminal group 241, second terminal group 242, lower terminal group 250, third terminal group 251, fourth terminal group 252, first terminal assembly 201, second terminal assembly 202, third terminal assembly 203, fourth terminal assembly 204;

[0038] Molded part 300, front molded part 310, first front molded part 311, second front molded part 312, third front molded part 313, fourth front molded part 314, rear molded part 320, first rear molded part 321, second rear molded part 322, third rear molded part 323, fourth rear molded part 324, opening 330, dovetail groove 340, dovetail tenon 350, second rib 360, trapezoidal protrusion 370, bulge 380;

[0039] Metal key 400, arc structure 410, first notch 420, double elastic wall structure 430, first support arm 440;

[0040] Fixing element 500, fixing hole 510, second notch 520, spring wall structure 530, stepped structure 540, second support arm 550;

[0041] Rear plug 600. Embodiments of the present invention

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] An embodiment of the present invention provides a horizontal connector, as shown in Figures 1-3, including a housing 100 and multiple terminal assemblies. The housing 100 has slots 110 with openings at both ends for mounting the terminal assemblies and an AIC (Add-in Card) card. The terminal assembly consists of terminals 200, as shown in Figure 4. The types of terminals 200 include: ground terminal 210, first signal terminal 220, and second signal terminal 230. The terminals of the terminal assembly are arranged evenly in this order. The structure of the terminal, from front to back, includes: a contact area, a lever arm area, a sealing area, and an injection molding area. The contact area is the area where the terminal is electrically connected to the AIC, including a bent terminal head. The injection molding area is the area covered by the molded part 300. The sealing area is the area where the terminal is connected to the molded part 300. The tail of the terminal also includes solder feet for soldering connection. The upper and lower walls of the housing 100 are provided with a uniform first opening 120 and a second opening 130, wherein the first opening 120 is directly opposite the terminal head and the second opening 130 is directly opposite the lever arm area of ​​the ground terminal 210. The arrangement of the first opening 120 and the second opening 130 can optimize the characteristic impedance of the terminal group and effectively improve the SI performance of the horizontal connector.

[0046] As shown in Figure 4, the first signal terminal 220 and the second signal terminal 230 are located on both sides of the ground terminal 210. The ground terminal 210 transmits ground signals, and the signal terminals (including the first signal terminal 220 and the second signal terminal 230) transmit differential signals. The ground terminal 210, the first signal terminal 220, and the second signal terminal 230 have different structural designs in different sections. In the contact area of ​​the terminals, all three have the same width and the distance between adjacent terminals is the same. In the lever arm area of ​​the terminals, the structures of the first signal terminal 220 and the second signal terminal 230 are symmetrical, the distance between adjacent terminals is the same, and the width of the ground terminal 210 is greater than the width of the signal terminal. In the encapsulation area of ​​the terminals, the width of the ground terminal 210 is greater than the width of the signal terminal. The different width and gap designs of the three terminals help to reduce crosstalk resonance and characteristic impedance generated by the terminals during signal transmission, and improve the SI performance of the horizontal connector. In the encapsulation area of ​​the terminals, a long straight section is provided at the junction of the terminal and the molded part 300. The design of the long straight section ensures that no glue overflows during the injection molding process.

[0047] As shown in Figure 13, further, in some embodiments, the terminal assembly includes: a first terminal assembly 201, a second terminal assembly 202, a third terminal assembly 203, and a fourth terminal assembly 204. The slot 110 includes a left slot and a right slot. The first terminal assembly 201 and the second terminal assembly 202 are upper-row terminal assemblies, and the third terminal assembly 203 and the fourth terminal assembly 204 are lower-row terminal assemblies. The first terminal assembly 201 and the third terminal assembly 203 are opposite each other in the left slot of the slot, and the second terminal assembly 202 and the fourth terminal assembly 204 are opposite each other in the right slot of the slot. The terminal assembly is injection molded using a terminal group. Each terminal assembly includes two molding parts 300, a front molding part 310 located in the injection area of ​​the terminal and assembled in the middle position of the slot, and a rear molding part 320 located at the tail end of the terminal and the front end of the solder pad, and assembled in the rear end position of the slot. Specifically, the first terminal assembly 201 includes a first terminal group 241, a first front molded part 311, and a first rear molded part 321; the second terminal assembly 202 includes a second terminal group 242, a second front molded part 312, and a second rear molded part 322; the third terminal assembly 203 includes a third terminal group 251, a third front molded part 313, and a third rear molded part 323; and the fourth terminal assembly 204 includes a fourth terminal group 252, a fourth front molded part 314, and a fourth rear molded part 324. In the accompanying drawings of this embodiment, the first terminal assembly 201 and the third terminal assembly 203 include 14-pin terminals, and the second terminal assembly 202 and the fourth terminal assembly 204 include 28-pin terminals. In specific implementations, the number of terminals in the terminal assemblies in the left and right slots can be combined in different ways to meet the connection needs of different AIC cards.

[0048] As shown in Figures 3, 7, and 8, in some embodiments, the first opening 120 is further provided with serrated mounting holes 121. Each mounting hole 121 corresponds to one terminal. The width of the mounting hole 121 is slightly larger than the width of the terminal head, meaning the gap between the terminal head and the mounting hole 121 is very small, thereby limiting the left-right swaying of the terminal head. Simultaneously, the mounting hole 121 is serrated, and the slope of the serrations is the same as the bending degree of the terminal head, meaning the slope of the serrations is parallel to the terminal head. After the terminal assembly is assembled, the terminal head fits snugly against the mounting hole 121. The restriction of the mounting hole 121 prevents the terminal assembly from springing too high, which is beneficial for adjusting and limiting the coplanarity dimension of the terminal assembly's springing height.

[0049] Furthermore, in some embodiments, as shown in FIG5, the horizontal connector further includes a rear plug 600, which is disposed between the upper row terminal assembly and the lower row terminal assembly. The rear plug 600 has an irregular shape, and the outer surface shape includes a horizontal plane, a sloped plane, and a vertical plane, while the inner surface shape includes a horizontal plane, an arc surface, and a vertical plane. The gap between the rear plug 600 and the upper row terminal group 240 and the lower row terminal group 250 varies at different positions of the terminals. Specifically, the gap between the horizontal surface of the outer surface of the rear plug 600 and the upper terminal group 240 is B; the gap between the inclined surface of the outer surface of the rear plug 600 and the upper terminal group 240 (including the first terminal group 241 and the second terminal group 242) is C; the gap between the first vertical surface of the outer surface of the rear plug 600 and the upper terminal group 240 is D; the gap between the second vertical surface of the outer surface of the rear plug 600 and the upper terminal group 240 is E; the gap between the horizontal surface and the arc surface of the inner surface of the rear plug 600 and the lower terminal group 250 (including the third terminal group 251 and the fourth terminal group 252) is A; and the gap between the vertical surface of the inner surface of the rear plug 600 and the lower terminal group 250 is F. The relationship between gap A and gap F is: F=E>D>A=B>C. By adjusting the gap between the rear plug 600 and the terminal group, the impedance and resonance of the horizontal connector can be effectively improved, thereby enhancing the SI performance of the horizontal connector.

[0050] The rear plug includes a first rear plug and a second rear plug. The first rear plug is located in the left slot, between the first terminal assembly 201 and the third terminal assembly 203, and between the front and rear molded parts 320. The first rear plug is located in the right slot, between the second terminal assembly 202 and the fourth terminal assembly 204, and is arranged side by side with the first rear plug.

[0051] It should be noted that during assembly, the lower row terminal assembly is first riveted into the slot 110 using a jig, and the terminal head of the lower row terminal group 250 is fixed in the mounting hole 121 on the lower wall of the housing 100. Then, the rear plug 600 is riveted into the slot 110 using a jig, and the rear plug 600 is located above the lower row terminal assembly. Finally, the upper row terminal assembly is riveted into the slot 110, and the terminal head of the upper row terminal assembly is fixed in the mounting hole 121 on the upper wall of the housing 100. The upper row terminal assembly is located above the rear plug 600.

[0052] Furthermore, in some embodiments, as shown in Figures 2, 6, and 13, the front molded parts 310 (including the first front molded parts to the fourth front molded parts) are provided with dovetail grooves 340 and dovetail tenons 350. The dovetail grooves 340 and dovetail tenons 350 of the upper row of front molded parts (i.e., the first front molded parts 311 and the second front molded parts 312) and the lower row of front molded parts (i.e., the third front molded parts 313 and the fourth front molded parts 314) are misaligned with each other, that is, the first front molded parts 311 and the fourth front molded parts 312 are misaligned with each other. The dovetail grooves 340 and dovetail tenons 350 of the three front mold plastic parts 313, the second front mold plastic part 312 and the fourth front mold plastic part 314 are misaligned with each other, so that the dovetail grooves 340 of the upper front mold plastic parts can be connected with the dovetail tenons 350 of the lower front mold plastic parts, ensuring that the upper and lower front mold plastic parts are locked together and firmly assembled. Due to the mutual stress, it plays a role in preventing plastic warping and deformation, thereby ensuring the coplanarity dimension of the terminal group spring height and the solder foot.

[0053] Furthermore, a second rib 360 is provided on the surface of the dovetail tenon 350. The second rib 360 makes the dovetail groove 340 tenon with an interference fit, thereby making the connection between the upper row of front molded parts and the lower row of front molded parts more secure.

[0054] Furthermore, in some embodiments, the molded part 300 is provided with an opening 330, which is located in the injection molding area of ​​the terminal and directly opposite the ground terminal 210. The design of the opening 330 is beneficial to improving the resonance of the horizontal connector, thereby improving the SI performance of the horizontal connector.

[0055] Furthermore, in some embodiments, as shown in Figures 9 and 10, the horizontal connector's slot 110 is further provided with metal keys 400 on both sides. The metal keys 400 are installed in the metal groove 140 on the inner side wall of the front end of the slot 110 of the housing 100. One end of the metal key 400 is provided with an arc-shaped structure 410, and the other end is provided with a first notch 420. The bottom sides of the metal key 400 are provided with double spring wall structures 430, the first notch 420 is located between the double spring wall structures 430, the bottom outer side of the double spring wall structures 430 is provided with a chamfer, and the middle sides of the metal key 400 are provided with first support arms 440. The groove opening of the metal groove 140 is provided with a chamfered structure, which cooperates with the chamfer on the double spring wall structure 430 of the metal key 400, so that the metal key 400 can be smoothly inserted into the metal groove 140. The bottom of the metal slot 140 is also provided with a first positioning protrusion 141, which fits the first notch 420 without gap, ensuring the correct installation position of the metal key 400. The metal slot 140 also has a first concave surface 142 that mates with the double-spring wall structure 430. When the metal key 400 is inserted into the bottom of the metal slot 140, the double-spring wall structure 430 expands to both sides to abut against the outer casing 100, preventing it from falling out and facilitating disassembly. The support arm of the metal key 400 is connected to the metal slot 140 by an interference fit. When the metal key 400 is inserted into the metal slot 140, the support arm further stabilizes the installation and prevents it from falling out. After the metal key 400 is installed in place, the arc-shaped structure 410 can wrap around the side wall of the outer casing 100. The surface of the metal key 400 is smooth, and the arc-shaped structure 410 has excellent guiding properties, allowing the AIC card to be inserted smoothly even at large insertion angles.

[0056] Metal key 400 includes a side metal key and a middle metal key. The side metal keys are located on the left side of the left slot and the right side of the right slot, respectively, and the middle metal key is located on the right side of the left slot and the left side of the right slot. For easier assembly, the arc-shaped structures 410 of the two middle metal keys are connected together, thus making the two middle metal keys a single unit.

[0057] Furthermore, in some embodiments, first ribs 150 are provided on both sides of the front end of the card slot 110, and the first ribs 150 are oppositely provided on the inner side of the upper wall and the inner side of the lower wall of the outer casing 100. The design of the first ribs 150 can make the card insertion more secure and can also keep the card in a centered position to maintain reliable contact.

[0058] Furthermore, in some embodiments, as shown in FIG3, the sidewall of the outer casing 100 is also provided with a mounting groove 160 and a stepped protrusion 170. The width and thickness of the stepped protrusion 170 increase sequentially from the rear end of the slot 110 to the front end. The mounting groove 160 is stepped, and the width of the mounting groove 160 gradually narrows from the rear end of the slot 110 to the front end. At the same time, the molded part 300 is provided with a chamfer, and the upper or lower surface of the front molded part 310 is provided with a trapezoidal protrusion 370, which enables the molded part 300 to have greater guidance during assembly and can better correct the installation position. At the same time, the design of the progressively narrowing slot 110 also makes the molded part 300 more securely installed in the outer casing 100.

[0059] Specifically, the mounting groove 160 includes a first mounting groove 161, a second mounting groove 162, and a third mounting groove 163. The first mounting groove 161 and the second mounting groove 162 are symmetrically arranged, and the third mounting groove 163 is formed by the indentation of the side wall of the outer shell 100. The second mounting groove 162 is located below the second mounting groove 162, and the third mounting groove 163 is located behind the second mounting groove 162. The upper row of front molded parts (including the first front molded part 311 and the second front molded part 312) is assembled in the first mounting groove 161, and the lower row of front molded parts (including the third front molded part 313 and the fourth front molded part 314) is assembled in the second mounting groove 162. The upper and lower rows of front molded parts have the same structure at both ends and are symmetrically arranged. The lower surface of the upper row of front molded parts and the upper surface of the lower row of front molded parts are provided with trapezoidal protrusions 370. The trapezoidal protrusions 370 are right-angled trapezoidal structures with the trapezoidal slope facing the front end. The front surfaces at both ends of the upper and lower rows of front molded parts are chamfered structures. The upper row of rear molded parts (including the first rear molded part 321 and the second rear molded part 322) and the lower row of rear molded parts (including the third rear molded part 323 and the fourth rear molded part 324) are assembled in the third mounting groove 163. The structure of the lower row of rear molded parts is smaller than that of the upper row of rear molded parts. The lower row of rear molded parts are assembled at the front end of the third mounting groove, and the upper row of rear molded parts are assembled at the rear end of the third mounting groove 163. The front surfaces of both ends of the upper row of rear molded parts and the lower row of rear molded parts are chamfered.

[0060] Furthermore, in some embodiments, the upper and lower walls of the housing 100 are provided with uniform mounting openings, and the upper surface of the upper row of front molded parts and the lower surface of the lower row of front molded parts are provided with corresponding protrusions 380. When the terminal assembly is assembled into the housing 100, the protrusions 380 can play a role in preventing it from falling back.

[0061] Furthermore, in some embodiments, as shown in Figures 11 and 12, the horizontal connector further includes a fixing member 500, which is disposed at the bottom of the housing 100. Specifically, a fixing groove 190 is provided on the side wall of the housing 100, with the groove opening facing downwards. One end of the fixing member 500 is provided with a fixing hole 510, and the other end is provided with a second notch 520. A spring wall structure 530 is provided on one side of the fixing member 500, and a stepped structure 540 is provided on the other side. The outer sides of the spring wall structure 530 and the stepped structure 540 are chamfered. The second notch 520 is located inside the spring wall structure 530 and the stepped structure 540. A second support arm 550 is also provided above the spring wall structure 530. The groove opening of the fixing groove 190 is chamfered to match the outer chamfer of the spring wall structure 530 and the stepped structure 540, so that the fixing member 500 can be smoothly inserted into the fixing groove 190. The bottom of the fixing groove 190 is provided with a second positioning protrusion 191, which fits the second notch 520 without clearance, ensuring the correct installation position of the fixing member 500. One side of the fixing groove 190 is also provided with a second concave surface 192 that mates with the spring wall structure 530. When the fixing member 500 is inserted into the bottom of the fixing groove 190, the spring wall structure 530 expands outward to abut against the outer shell 100, preventing it from falling off and facilitating disassembly. The stepped structure 540 increases the interference of the fixing member 500 during assembly, thus ensuring a secure installation. The second support arm 550 is connected to the fixing groove 190 with an interference fit, ensuring the fixing member 500 is securely installed and will not wobble. The fixing member 500 is used to secure the horizontal connector during assembly.

[0062] Furthermore, in some embodiments, the horizontal connector further includes a Mylar suction surface, which is fixedly connected to the outer surface of the upper wall of the housing. The Mylar suction surface 101 has a smooth surface, and the horizontal connector can be moved by being attracted by the Mylar suction surface 101.

[0063] The horizontal connector of the present invention has the following advantages: by changing the structure of the housing 100 and optimizing the terminal structure, the characteristic impedance of the terminal group can be directly optimized, the SI performance of the horizontal connector can be effectively improved, the manufacturing cost required for conventional SI performance optimization schemes can be reduced, the process can be simplified, the production time can be reduced, and the product qualification rate can be improved.

[0064] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0065] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They do not limit the scope of protection of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

[0066] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A horizontal connector, characterized in that, include: The device includes a housing and multiple terminal assemblies. The housing has slots for mounting the terminal assemblies and AIC cards. The terminal assemblies include a terminal group and a molded part. The terminal group consists of a ground terminal, a first signal terminal, and a second signal terminal. The housing has a first opening evenly distributed at a position corresponding to the terminal head. The housing has a second opening evenly distributed at a position corresponding to the lever arm area of ​​the ground terminal. The first opening has serrated mounting holes for limiting the height of the terminal head.

2. The horizontal connector according to claim 1, characterized in that, The terminal assembly includes a first terminal assembly, a second terminal assembly, a third terminal assembly, and a fourth terminal assembly. The first terminal assembly and the third terminal assembly are disposed opposite each other in the left slot of the card slot, and the second terminal assembly and the fourth terminal assembly are disposed opposite each other in the right slot of the card slot. The number of terminals in the left slot and the right slot can be combined in different ways to meet the connection needs of different AIC cards.

3. The horizontal connector according to claim 1, characterized in that, The first signal terminal, the ground terminal, and the second signal terminal have the same terminal width in the contact area, and the gap between adjacent terminals is the same; in the terminal lever area, the first signal terminal and the second signal terminal have symmetrical structures, and the gap between adjacent terminals is the same, and the width of the ground terminal is greater than the width of the first signal terminal and the second signal terminal. In the terminal sealing area, the width of the ground terminal is greater than the width of the first signal terminal and the second signal terminal, and a long straight section is provided at the junction of the terminal group and the molded part.

4. The horizontal connector according to claim 1, characterized in that, The molded part has an opening, and the opening is positioned directly opposite the ground terminal.

5. The horizontal connector according to claim 1, characterized in that, Also includes: The rear plug is located between the upper row of terminal groups and the lower row of terminal groups, and the gap between the rear plug and the upper row of terminal groups, and between the rear plug and the lower row of terminal groups, has different values ​​at different positions of the rear plug; The gap relationship between the rear plug and the upper and lower terminal groups satisfies: vertical gap F = vertical gap E > vertical gap D > vertical gap B = vertical gap A > vertical gap C.

6. The horizontal connector according to claim 1, characterized in that, Also includes: Metal keys, the metal keys being disposed on both sides of the slot; The metal key has an arc-shaped portion at the top, a double-spring wall structure on both sides of the bottom of the metal key, a chamfer on the outer bottom of the double-spring wall structure, and a first support arm on both sides of the middle of the metal key.

7. The horizontal connector according to claim 1, characterized in that, The outer shell includes a first rib, which is respectively disposed on both sides of the slot and opposite to the inner side of the upper wall and the inner side of the lower wall of the outer shell.

8. The horizontal connector according to claim 1, characterized in that, The outer shell is provided with a stepped mounting groove, the front surface of the molded part is provided with a chamfer, and the upper or lower surface of the front molded part is provided with a trapezoidal protrusion.

9. The horizontal connector according to claim 1, characterized in that, The front molded parts include: dovetail grooves and dovetail tenons, and the upper and lower molded parts are connected by dovetail grooves and dovetail tenons; The dovetail tenon has a second raised rib on its surface.

10. The horizontal connector according to claim 1, characterized in that, The upper and lower walls of the outer shell are evenly provided with mounting openings, and the molded part is provided with protrusions.

11. The horizontal connector according to claim 1, characterized in that, Also includes: The fastener is located at the bottom of the side wall of the slot. One side of the fastener has a spring wall structure, and the other side of the fastener has a stepped structure. The outer sides of the spring wall structure and the stepped structure have chamfers. The fastener also has a second support arm.

12. The horizontal connector according to claim 1, characterized in that, Also includes: Mylar suction surface, which is fixedly connected to the outer side of the upper wall of the housing.

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