High-speed communication storage electric connector

Abstract

The invention provides a high-speed communication storage electric connector, which comprises an insulating body, the insulating body is provided with a lengthwise slot which is concavely arranged downwards from the top surface and is used for inserting an electronic module, and a plurality of terminal slots are respectively arranged in lengthwise side walls on two sides of the slot; the plurality of terminals are respectively accommodated in the corresponding terminal grooves in the two lengthwise side walls in a one-to-one correspondence manner, at least one part of the terminal grooves are internally provided with double-layer terminals, and the other terminal grooves are internally provided with single-layer terminals; the double-layer terminal comprises a lower-layer terminal and an upper-layer terminal, the upper-layer terminal of the double-layer terminal is downwards inserted and fixed in the terminal groove from the top of the insulating body, and the lower-layer terminal of the double-layer terminal is upwards inserted and fixed in the terminal groove from the bottom of the insulating body; the single-layer terminals are inserted and fixed in the terminal grooves upwards from the bottom of the insulation body or inserted and fixed in the terminal grooves downwards from the top of the insulation body. According to the high-speed communication storage electric connector, signal transmission channels can be increased, so that the signal transmission speed is greatly improved, and high-speed automatic plug end production can be realized.

Description

Technical Field

[0001] The invention belongs to the field of connectors, and in particular relates to a high-speed communication storage electrical connector. Background Art

[0002] Chinese patent CN202210624516.8 discloses an electrical connector, which is a PCIE6.0 connector, used to plug in electronic cards such as PCIE cards and transmit high-speed signals. The electrical connector includes an insulating body, a plurality of terminals and a plug. The insulating body is provided with a docking surface, a slot formed by a recessed arrangement of the docking surface, and the slot is provided with a slot bottom surface facing the docking surface, and two inner wall surfaces connecting the docking surface and the slot bottom surface. The top surface of the insulating body constitutes the docking surface, and the electronic card is inserted into the slot through the docking surface. The insulating body includes two side walls located on both sides of the slot, each side wall is provided with a plurality of terminal slots, which accommodate corresponding terminals one by one, and the terminal slots penetrate downward, penetrate the inner wall surface inward, and penetrate the docking surface upward at the same time.

[0003] The terminal includes a fixing portion, an elastic arm and a pin portion.

[0004] The plug is an integrated structure and is installed on the insulating body. The plug includes an insulating insert inserted into the signal terminal slot and a conductive insert inserted into the ground terminal slot. The plug includes a bottom plate. The bottom plate includes a conductive plate layer and an insulating plate layer connected to each other as a whole. The insulating plate layer is wrapped around the upper and lower surfaces of the conductive plate layer. The conductive insert is formed by extending upward from the conductive plate layer as a whole. The insulating insert is formed by extending upward from the insulating plate layer as a whole. The conductive insert is a conductive plastic material. The conductive plate layer and the conductive insert are first formed by a first injection molding method. Then, the insulating plate layer and the insulating insert are formed on the upper and lower surfaces of the conductive plate layer by a second injection molding method, thereby forming an integrated plug. Both the conductive insert and the insulating insert are columnar inserts. A row of columnar inserts is provided on each lateral side of the bottom plate. Each row of columnar inserts extends in the longitudinal direction. The columnar inserting portion abuts against the retaining portion of the terminal at the upper half near the bottom of the slot, and is spaced a certain distance from the terminal at the lower half away from the bottom of the slot. The interference between the columnar inserting portion and the insulating body is utilized to increase the retaining force between the plug and the insulating body.

[0005] A row of terminals is respectively arranged on the two side walls on both sides of the slot of the above-mentioned electrical connector, and the number of terminals cannot be increased, so the signal transmission channel cannot be increased, and the signal transmission speed cannot be greatly improved; moreover, the terminals and plugs are separate and are installed in the insulating body by plug-in, and they need to be plugged in separately during assembly, which increases the probability of assembly errors. Therefore, it needs to be improved. Summary of the invention

[0006] The object of the present invention is to provide a high-speed communication storage electrical connector to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the technical solution used in the present invention is: A high-speed communication storage electrical connector, comprising: An insulating body, having a longitudinal slot recessed downward from the top surface for inserting an electronic module, a plurality of terminal slots are respectively arranged in the longitudinal side walls on both sides of the slot, and an ear buckle accommodating space and a pivoting portion pivotally connected to the ear buckle are arranged at least at one end of the insulating body; At least one ear clip pivotally connected to one end of the insulating body; Multiple terminals are respectively and one by one accommodated in corresponding terminal grooves in the two longitudinal side walls, at least a part of the terminal grooves are provided with double-layer terminals, and the remaining terminal grooves are single-layer terminals; the double-layer terminals include lower-layer terminals and upper-layer terminals, the upper-layer terminals of the double-layer terminals are inserted downward from the top of the insulating body and fixed in the terminal groove, and the lower-layer terminals of the double-layer terminals are inserted upward from the bottom of the insulating body and fixed in the terminal groove; the single-layer terminals are inserted upward from the bottom of the insulating body and fixed in the terminal groove or inserted downward from the top of the insulating body and fixed in the terminal groove.

[0008] Furthermore, when each of the single-layer terminals is inserted and fixed in the terminal slot from the bottom of the insulating body upward, each single-layer terminal is flush with the lower terminal and forms a row; when each single-layer terminal is inserted and fixed in the terminal slot from the top of the insulating body downward, each single-layer terminal is flush with the upper terminal and forms a row.

[0009] Furthermore, when each of the single-layer terminals is flush with the lower-layer terminals, the structure of each single-layer terminal is the same as that of the lower-layer terminals, and the structure of each single-layer terminal is different from that of the upper-layer terminals. The terminal groove for accommodating each single-layer terminal has the same structure as that of the terminal groove for accommodating each lower-layer terminal, and the structure of the terminal groove for accommodating each single-layer terminal is different from that of the terminal groove for accommodating each upper-layer terminal; when each single-layer terminal is flush with the upper-layer terminals, the structure of each single-layer terminal is the same as that of the upper-layer terminals, and the structure of each single-layer terminal is different from that of the lower-layer terminals. The terminal groove for accommodating each single-layer terminal has the same structure as that of the terminal groove for accommodating each upper-layer terminal, and the structure of the terminal groove for accommodating each single-layer terminal is different from that of the terminal groove for accommodating each lower-layer terminal.

[0010] Furthermore, when each of the single-layer terminals is flush with the lower-layer terminals, the terminal grooves for accommodating the single-layer terminals do not pass through the top surface of the longitudinal side walls of the insulating body, and the top surface of the longitudinal side walls is recessed downward at positions corresponding to the terminal grooves for accommodating each single-layer terminal to form grooves that are not connected to the terminal grooves for accommodating the single-layer terminals, and the terminal grooves for accommodating the upper-layer terminals pass through the top surface of the longitudinal side walls of the insulating body; a partition wall is provided between the terminal grooves for accommodating the lower-layer terminals and the terminal grooves for accommodating the upper-layer terminals to completely separate them.

[0011] Furthermore, the partition wall includes a vertical wall and a horizontal wall, the vertical wall extends downward to be flush with the bottom surface of the insulating body, the horizontal wall extends toward the slot direction to be flush with the slot-facing surface of the longitudinal side wall, and the upper end of the vertical wall is vertically connected to the end of the horizontal wall away from the slot.

[0012] Furthermore, the terminal grooves accommodating each of the upper terminals extend from the top surface of the longitudinal side wall of the insulating body in the direction of the slot to the slot-facing surface of the longitudinal side wall, so that an independent partition is formed between each two adjacent terminal grooves accommodating the upper terminals, and the top surface of each independent partition is lower than the top surface of the longitudinal side wall of the insulating body.

[0013] Furthermore, the contact portion of the upper terminal is higher than the contact portion of the lower terminal, the welding portion of the upper terminal is flush with the welding portion of the lower terminal, the welding portion of the upper terminal and the welding portion of the lower terminal are in the same direction or in opposite directions, and the welding portion of the single-layer terminal and the welding portion of the lower terminal are in the same direction.

[0014] Furthermore, the upper terminal and the lower terminal both include a fixing portion fixed in the corresponding terminal slot, the fixing portion extends upward and downward respectively to form an upper arm portion and a lower arm portion, the lower end of the lower arm portion is bent toward the inner side of the insulating body to form the welding portion, the upper end of the upper arm portion of the lower terminal protrudes toward the slot side to form the contact portion, the upper end of the upper arm portion of the upper terminal extends toward the slot side to form an upper oblique arm, the end of the upper oblique arm is bent downward to form a lower oblique contact arm, and the end of the lower oblique contact arm extends into the slot.

[0015] Furthermore, the terminal grooves for accommodating each of the upper terminals are arranged in a row on the top surface of the longitudinal side wall of the insulating body and the recessed grooves on the top surface of the longitudinal side wall, and the terminal grooves for accommodating each of the upper terminals and the terminal grooves for accommodating each of the lower terminals are each arranged in a row on the bottom surface of the insulating body. The terminal grooves for accommodating the upper terminals form a plurality of terminal groove groups arranged at intervals in the longitudinal direction of the insulating body, and a plurality of grooves are arranged between each two adjacent terminal groove groups on the top surface of the insulating body.

[0016] Furthermore, the length of the terminal groove for accommodating each of the upper terminals on the top surface of the insulating body along the width direction of the insulating body is greater than the length of the terminal groove on the bottom surface of the insulating body along the width direction of the insulating body; the length of the terminal groove for accommodating each of the upper terminals on the top surface of the insulating body along the width direction of the insulating body is greater than the length of the terminal groove for accommodating each of the lower terminals on the bottom surface of the insulating body along the width direction of the insulating body; the length of the terminal groove for accommodating each of the upper terminals on the bottom surface of the insulating body along the width direction of the insulating body is less than the length of the terminal groove for accommodating each of the lower terminals on the bottom surface of the insulating body along the width direction of the insulating body.

[0017] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in: by locally setting double-layer terminals, the number of terminals is increased on the basis of the same structural space, thereby increasing the signal transmission channel, so that the signal transmission speed is greatly improved; the upper terminal of the double-layer terminal is inserted and fixed in the terminal slot from top to bottom, and the lower terminal is inserted and fixed in the terminal slot from bottom to top, without the need for plugs, and there is no plug assembly step, which not only can realize high-speed automated plug terminal production, but also reduce costs and improve yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional exploded view of the high-speed communication storage electrical connector and the electronic module of the present invention; Figure 2 A perspective view of an electrical connector for storing high-speed communications; Figure 3 A three-dimensional diagram of another angle of the high-speed communication storage electrical connector; Figure 4 A top view of an electrical connector for storing high-speed communications; Figure 5 A bottom view of an electrical connector for storing high-speed communications; Figure 6 is a three-dimensional diagram of an insulating body; Figure 7 is a three-dimensional view of the insulating body from another angle; Figure 8 for Figure 1 A three-dimensional diagram of the terminal in FIG. Fig. 9 for Figure 8 A three-dimensional diagram of a partial terminal in FIG. Fig.10 for Figure 8 A three-dimensional view of the upper terminal in FIG. Fig.11 for Figure 8 A three-dimensional diagram of the lower terminal in FIG. Fig.12 for Figure 8 A front view of Fig.13 It is a three-dimensional diagram of the metal lock card structure; Fig.14 A cross-sectional view of the position of the terminal slot of the insulating body for accommodating the single-layer terminal; Fig.15 for Fig.14 Cross-sectional view of the junction with the single-layer terminal; Fig.16 A cross-sectional view of the position of the terminal slot of the insulating body for accommodating the double-layer terminal; Fig.17 for Fig.16 Cross-section view of the junction with the double-layer terminal.

[0019] Description of the accompanying drawings: insulating body 1, slot 11, longitudinal side wall 12, rectangular groove 121, tower part 13, terminal slot 14, anti-fool part 15, groove 16, partition wall 17, vertical wall 171, horizontal wall 172, material trough 18, independent partition 19, terminal 2, fixing part 21, upper arm part 22, opening 211, card point 212, lower arm part 23, welding part 24, contact part 25, upper oblique arm 26, lower oblique contact arm 27, ear buckle 4, metal lock structure 5, spring clip anti-retraction structure 51, electronic module 6, iron foot 7. DETAILED DESCRIPTION

[0020] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1-17 As shown, the high-speed communication storage electrical connector includes an insulating body 1, a plurality of terminals 2 and a plurality of plugs 3 received in the insulating body 1.

[0022] The middle part of the top surface of the insulating body 1 is concave in the longitudinal direction to form a longitudinal slot 11. The slot 11 has longitudinal side walls 12 arranged along the length direction of the slot 11 on both sides. Both ends of the insulating body 1 in the length direction are provided with a tower portion 13, and the two ends of the slot 11 pass through the corresponding tower portions 13. The longitudinal side walls 12 on both sides of the slot 11 are provided with a plurality of terminal slots 14. The terminal slots 14 pass through the bottom surface of the insulating body 1, and the terminal slots 14 also pass through the slot-facing surface of the longitudinal side walls 12. An anti-mute portion 15 connecting the two longitudinal side walls 12 is provided in the slot 11. The anti-mute portion 15 divides the slot 11 into slot one and slot two whose length is shorter than slot one. The anti-mute portion 15 is used to prevent the electronic module 6 from being reversely inserted.

[0023] One of the towers 13 of the insulating body 1 has an ear buckle accommodating space, and the tower 13 has a pivoting portion for pivoting the ear buckle and is provided with an ear buckle 4. The other tower 13 is provided with a metal lock structure 5, and the metal lock structure 5 has a spring anti-retraction structure 51. The single-sided ear buckle can save space occupied by opening the ear buckle. The ear buckle 4 and the metal lock structure 5 are buckled and fixed on both sides of the electronic module 6 inserted into the slot 11 to fix the electronic module 6. An iron foot 7 is fixed at the bottom of the two towers 13 of the insulating body 1, which is used to connect with the circuit board to fix the insulating body 1 to the circuit board.

[0024] The plurality of terminals 2 are respectively and one by one accommodated in the corresponding terminal slots 14 in the two longitudinal side walls 12. Some of the terminals 2 in each longitudinal side wall 12 are configured as double-layer terminals, that is, at least a portion of the terminal slots 14 are configured with double-layer terminals (double-layer terminals can be configured in one terminal slot 14 or in multiple spaced terminal slots), and the remaining terminal slots 14 are configured with single-layer terminals.

[0025] The double-layer terminal includes a lower terminal and an upper terminal. The upper terminal of the double-layer terminal is inserted downward from the top of the insulating body 1 and fixed in the terminal groove 14. The lower terminal of the double-layer terminal is inserted upward from the bottom of the insulating body 1 and fixed in the terminal groove 14. The single-layer terminal is inserted upward from the bottom of the insulating body 1 and fixed in the terminal groove 14. Each single-layer terminal is flush with the lower terminal and forms a row. Each single-layer terminal has the same structure as the lower terminal, and each single-layer terminal has a different structure from the upper terminal. The terminal groove 14 accommodating each single-layer terminal has the same structure as the terminal groove 14 accommodating each lower terminal, and the terminal groove 14 accommodating each single-layer terminal has a different structure from the terminal groove 14 accommodating each upper terminal.

[0026] The terminal groove 14 for accommodating the single-layer terminal does not penetrate the top surface of the longitudinal side wall 12 of the insulating body 1. The top surface of the longitudinal side wall 12 is recessed downward at the position corresponding to the terminal groove 14 for accommodating each single-layer terminal to form a groove 16 that is not connected to the terminal groove 14 for accommodating the single-layer terminal. The terminal groove 14 for accommodating the upper terminal penetrates the top surface of the longitudinal side wall of the insulating body 1. A partition wall 17 is provided between the terminal groove 14 for accommodating the lower terminal and the terminal groove 14 for accommodating the upper terminal to completely separate them. The partition wall 17 includes a vertical wall 171 and a horizontal wall 172. The vertical wall 171 extends downward to be flush with the bottom surface of the insulating body 1. The horizontal wall 172 extends toward the slot 11 to be flush with the slot-facing surface of the longitudinal side wall 12. The upper end of the vertical wall 171 is vertically connected to the end of the horizontal wall 172 away from the slot. The terminal grooves 14 for receiving the upper terminals are connected from the top surface of the longitudinal side wall of the insulating body 1 to the slot 11 to the slot-facing surface of the longitudinal side wall, so that an independent fence 19 is formed between each two adjacent terminal grooves 14 for receiving the upper terminals. The top surface of each independent fence 19 is lower than the top surface of the longitudinal side wall 12 of the insulating body 1, so that when the electronic module 6 is inserted into the slot 11, it first hits the top surface of the longitudinal side wall 12 of the insulating body 1, and does not hit the top surface of the independent fence 19 first, thereby protecting the upper terminals next to the independent fence 19. A rectangular groove 121 with an open inner side is formed on the top surface of the longitudinal side wall 12 corresponding to the terminal groove 14 for receiving the upper terminals. A plurality of independent fences 19 are located below the rectangular groove 121, and the outer sides of the plurality of independent fences 19 are connected to the side wall of the rectangular groove 121 close to the outer side of the insulating body.

[0027] The length of the terminal groove 14 for accommodating each of the upper terminals on the top surface of the insulating body 1 along the width direction of the insulating body 1 is greater than the length of the terminal groove 14 on the bottom surface of the insulating body 1 along the width direction of the insulating body 1; the length of the terminal groove 14 for accommodating each of the upper terminals on the top surface of the insulating body 1 along the width direction of the insulating body 1 is greater than the length of the terminal groove 14 for accommodating each of the lower terminals on the bottom surface of the insulating body 1 along the width direction of the insulating body 1; the length of the terminal groove 14 for accommodating each of the upper terminals on the bottom surface of the insulating body 1 along the width direction of the insulating body 1 is less than the length of the terminal groove 14 for accommodating each of the lower terminals on the bottom surface of the insulating body 1 along the width direction of the insulating body 1.

[0028] The terminal grooves 14 for receiving the upper terminals are arranged in a row on the top surface of the longitudinal side wall 12 of the insulating body 1 and the grooves 16 concave on the top surface of the longitudinal side wall 12. The terminal grooves 14 for receiving the upper terminals and the terminal grooves 14 for receiving the lower terminals are arranged in a row on the bottom surface of the insulating body 1. On the bottom surface of the insulating body 1, the terminal grooves 14 for receiving the upper terminals are on the outside, and the terminal grooves 14 for receiving the lower terminals are on the inside. The terminal grooves 14 for receiving the upper terminals form a plurality of terminal groove groups arranged at intervals in the longitudinal direction of the insulating body 1. On the top surface of each longitudinal side wall 12 of the insulating body 1, a plurality of grooves 16 are arranged between each adjacent two terminal groove groups. The top surfaces of the two longitudinal side walls 12 are provided with a plurality of material cutting grooves 18 at both sides of the foolproof portion 15 along the length direction of the longitudinal side walls 12, and each longitudinal side wall 12 has a plurality of grooves 16 on both sides of the plurality of material cutting grooves 18 on the top surface. The provision of the material cutting groove 18 and the groove 16 can not only save materials and reduce the weight of the insulating body 1 , but also prevent the insulating body 1 from warping and facilitate mold forming.

[0029] The upper terminal and the lower terminal both include a fixing portion 21 fixed in the corresponding terminal slot 14, and an opening 211 is provided in the middle of the fixing portion 21 to save metal materials. The inner side of the fixing portion 21 protrudes with a clamping point 212 clamped on the inner wall of the corresponding terminal slot 14. The fixing portion 21 extends upward and downward to form an upper arm portion 22 and a lower arm portion 23 respectively, and the lower end of the lower arm portion 23 is bent toward the inner side of the insulating body 1 to form a welding portion 24. The upper end of the upper arm portion 22 of the lower terminal protrudes toward the slot 11 to form a contact portion 25, and the upper end of the upper arm portion 22 of the upper terminal extends toward the slot 11 to form an upper oblique arm 26, and the end of the upper oblique arm 26 is bent downward to form a lower oblique contact arm 27, and the end of the lower oblique contact arm 27 is a contact end, and the contact end extends into the slot 11.

[0030] The contact end of the upper terminal is higher than the contact portion 25 of the lower terminal, the welding portion 24 of the upper terminal is flush with the welding portion 24 of the lower terminal, the welding portion 24 of the upper terminal and the welding portion 24 of the lower terminal are oriented in the same direction, and the welding portion 24 of the single-layer terminal and the welding portion 24 of the lower terminal are oriented in the same direction and both are toward the inner side of the insulating body 1.

[0031] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in: by locally setting double-layer terminals, the number of terminals is increased on the basis of the same structural space, thereby increasing the signal transmission channel, so that the signal transmission speed is greatly improved; the upper terminal of the double-layer terminal is inserted and fixed in the terminal groove 14 from top to bottom, and the lower terminal is inserted and fixed in the terminal groove 14 from bottom to top, without the need for plugs, and there is no plug assembly step, which not only can realize high-speed automated plug production, but also reduce costs and improve yield.

[0032] In other embodiments, the two towers 13 of the insulating body 1 are both provided with ear buckles 4. The two ear buckles 4 are respectively fastened and fixed on two sides of the electronic module 6 inserted into the slot 11 to fix the electronic module 6.

[0033] In other embodiments, the single-layer terminals are inserted downward from the top of the insulating body 1 and fixed in the terminal slots 14. Each single-layer terminal is flush with the upper terminal and forms a row. Each single-layer terminal has the same structure as the upper terminal, and each single-layer terminal has a different structure from the lower terminal. The terminal slots 14 accommodating each single-layer terminal have the same structure as the terminal slots 14 accommodating each upper terminal, and the terminal slots 14 accommodating each single-layer terminal have a different structure from the terminal slots accommodating each lower terminal.

[0034] In other embodiments, the soldering portion 24 of the upper terminal and the soldering portion 24 of the lower terminal in each longitudinal side wall 12 face in opposite directions.

[0035] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A high-speed communication storage electrical connector, characterized in that: include: An insulating body, having a longitudinal slot recessed downward from the top surface for inserting an electronic module, a plurality of terminal slots are respectively arranged in the longitudinal side walls on both sides of the slot, and an ear buckle accommodating space and a pivoting portion pivotally connected to the ear buckle are arranged at least at one end of the insulating body; At least one ear clip pivotally connected to one end of the insulating body; Multiple terminals are respectively and one by one accommodated in corresponding terminal grooves in the two longitudinal side walls, at least a part of the terminal grooves are provided with double-layer terminals, and the remaining terminal grooves are single-layer terminals; the double-layer terminals include lower-layer terminals and upper-layer terminals, the upper-layer terminals of the double-layer terminals are inserted downward from the top of the insulating body and fixed in the terminal groove, and the lower-layer terminals of the double-layer terminals are inserted upward from the bottom of the insulating body and fixed in the terminal groove; the single-layer terminals are inserted upward from the bottom of the insulating body and fixed in the terminal groove or inserted downward from the top of the insulating body and fixed in the terminal groove.

2. The high-speed communication storage electrical connector according to claim 1, characterized in that: When each of the single-layer terminals is inserted upward from the bottom of the insulating body and fixed in the terminal slot, each single-layer terminal is flush with the lower terminal and forms a row; when each of the single-layer terminals is inserted downward from the top of the insulating body and fixed in the terminal slot, each single-layer terminal is flush with the upper terminal and forms a row.

3. The high-speed communication storage electrical connector according to claim 2, characterized in that: When each of the single-layer terminals is flush with the lower-layer terminals, the structure of each single-layer terminal is the same as that of the lower-layer terminals, and the structure of each single-layer terminal is different from that of the upper-layer terminals. The terminal groove for accommodating each single-layer terminal is the same as that of the terminal groove for accommodating each lower-layer terminal, and the structure of the terminal groove for accommodating each single-layer terminal is different from that of the terminal groove for accommodating each upper-layer terminal; when each single-layer terminal is flush with the upper-layer terminals, the structure of each single-layer terminal is the same as that of the upper-layer terminals, and the structure of each single-layer terminal is different from that of the lower-layer terminals. The terminal groove for accommodating each single-layer terminal is the same as that of the terminal groove for accommodating each upper-layer terminal, and the structure of the terminal groove for accommodating each single-layer terminal is different from that of the terminal groove for accommodating each lower-layer terminal.

4. The high-speed communication storage electrical connector according to claim 3, characterized in that: When each of the single-layer terminals is flush with the lower-layer terminals, the terminal grooves for accommodating the single-layer terminals do not pass through the top surface of the longitudinal side walls of the insulating body, and the top surface of the longitudinal side walls is recessed downward at positions corresponding to the terminal grooves for accommodating each single-layer terminal to form grooves that are not connected to the terminal grooves for accommodating the single-layer terminals, and the terminal grooves for accommodating the upper-layer terminals pass through the top surface of the longitudinal side walls of the insulating body; a partition wall is provided between the terminal grooves for accommodating the lower-layer terminals and the terminal grooves for accommodating the upper-layer terminals to completely separate them.

5. The high-speed communication storage electrical connector according to claim 4, characterized in that: The partition wall includes a vertical wall and a horizontal wall. The vertical wall extends downward to be flush with the bottom surface of the insulating body, and the horizontal wall extends toward the slot to be flush with the slot-facing surface of the longitudinal side wall. The upper end of the vertical wall is vertically connected to the end of the horizontal wall away from the slot.

6. The high-speed communication storage electrical connector according to claim 4, characterized in that: The terminal grooves for accommodating the upper terminals extend from the top surface of the longitudinal side wall of the insulating body in the direction of the slot to the slot-facing surface of the longitudinal side wall, so that an independent partition is formed between each two adjacent terminal grooves for accommodating the upper terminals, and the top surface of each independent partition is lower than the top surface of the longitudinal side wall of the insulating body.

7. The high-speed communication storage electrical connector according to claim 4, characterized in that: The contact portion of the upper terminal is higher than the contact portion of the lower terminal, the welding portion of the upper terminal is flush with the welding portion of the lower terminal, the welding portion of the upper terminal and the welding portion of the lower terminal are in the same or opposite directions, and the welding portion of the single-layer terminal and the welding portion of the lower terminal are in the same direction.

8. The high-speed communication storage electrical connector according to claim 7, characterized in that: The upper terminal and the lower terminal both include a fixing portion fixed in the corresponding terminal slot, the fixing portion extends upward and downward respectively to form an upper arm portion and a lower arm portion, the lower end of the lower arm portion is bent toward the inner side of the insulating body to form the welding portion, the upper end of the upper arm portion of the lower terminal protrudes toward the slot side to form the contact portion, the upper end of the upper arm portion of the upper terminal extends toward the slot side to form an upper oblique arm, the end of the upper oblique arm is bent downward to form a lower oblique contact arm, and the end of the lower oblique contact arm extends into the slot.

9. The high-speed communication storage electrical connector according to claim 4, characterized in that: The terminal grooves for accommodating the upper terminals are arranged in a row on the top surface of the longitudinal side wall of the insulating body and the grooves concave on the top surface of the longitudinal side wall. The terminal grooves for accommodating the upper terminals and the terminal grooves for accommodating the lower terminals are each arranged in a row on the bottom surface of the insulating body. The terminal grooves for accommodating the upper terminals form a plurality of terminal groove groups arranged at intervals in the longitudinal direction of the insulating body. On the top surface of the insulating body, a plurality of grooves are arranged between each adjacent two terminal groove groups.

10. The high-speed communication storage electrical connector according to claim 9, characterized in that: The length of the terminal groove for accommodating each of the upper terminals on the top surface of the insulating body along the width direction of the insulating body is greater than the length of the terminal groove on the bottom surface of the insulating body along the width direction of the insulating body; the length of the terminal groove for accommodating each of the upper terminals on the top surface of the insulating body along the width direction of the insulating body is greater than the length of the terminal groove for accommodating each of the lower terminals on the bottom surface of the insulating body along the width direction of the insulating body; the length of the terminal groove for accommodating each of the upper terminals on the bottom surface of the insulating body along the width direction of the insulating body is less than the length of the terminal groove for accommodating each of the lower terminals on the bottom surface of the insulating body along the width direction of the insulating body.

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