High-speed communication memory card edge connector

Abstract

The invention provides a high-speed communication memory card edge connector, which comprises an insulating body 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, the rest of the terminal grooves are internally provided with single-layer terminals, and each single-layer terminal is fixed in the corresponding terminal groove in a plug-in mounting manner; at the position of the double-layer terminal, two terminals in each terminal groove and a plug piece are formed together in an embedded manner, and the plug piece is inserted and fixed in the terminal groove; according to the high-speed communication memory card edge connector, the assembly error rate can be reduced, the manufacturing cost can be reduced, and signal transmission channels can be increased, so that the signal transmission speed is greatly improved.

Description

Technical Field

[0001] The invention belongs to the field of connectors, and in particular relates to a high-speed communication memory card edge 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 memory card edge 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 memory card edge 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 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 provided with single-layer terminals, and each single-layer terminal is fixed in the corresponding terminal groove by plug-in manner; at the position of the double-layer terminal, the two terminals in each terminal groove are embedded with a plug, and the plug is fixed in the terminal groove by plug-in; The welding portion 1 of one layer of the double-layer terminal faces the same direction as the welding portion 2 of the single-layer terminal, and the welding portion 1 of the other layer of the double-layer terminal faces the opposite direction to the welding portion 2 of the single-layer terminal.

[0008] Furthermore, the double-layer terminal comprises a lower terminal and an upper terminal, and the structures of the lower terminal and the upper terminal of the single-layer terminal in the remaining terminal slots are different from those of the double-layer terminal.

[0009] Furthermore, the contact portion 1 of the upper terminal is higher than the contact portion 1 of the lower terminal, the welding portion 1 of the upper terminal is flush with the welding portion 1 of the lower terminal, and the welding portion 1 of the upper terminal and the welding portion 1 of the lower terminal are oriented in the same direction or in opposite directions.

[0010] Furthermore, each of the upper-level terminals and the lower-level terminals includes a fixing portion 1, which is embedded and molded together with the plug, and the fixing portion 1 extends upward to form an arm portion 1 extending out of the top of the plug, and the end of the arm portion 1 protrudes toward the slot side to form the contact portion 1, and the lower end of the fixing portion 1 is connected to the welding portion 1, and the fixing portion 1 of each upper-level terminal protrudes outward away from the outer side of the slot to form a retaining portion extending out of the plug, and the retaining portion is clamped and fixed on the inner wall of the terminal slot.

[0011] Furthermore, the plug includes a main board body, the top of the main board body protrudes at the side close to the slot and the side away from the slot to form a protruding portion, a notch is formed between the two protruding portions, the protruding portion away from the slot protrudes outward on the side away from the slot to form a retaining portion, the retaining portion is clamped and fixed on the inner wall of the terminal slot, an arm portion of the lower terminal protrudes from the notch, and an arm portion of the upper terminal protrudes from the top of the protruding portion away from the slot.

[0012] Further, the second welding portion of the single-layer terminal is oriented in the same direction as the first welding portion of the upper terminal of the double-layer terminal, and in the opposite direction to the first welding portion of the lower terminal of the double-layer terminal; or, the second welding portion of the single-layer terminal is oriented in the opposite direction to the first welding portion of the upper terminal of the double-layer terminal, and in the same direction as the first welding portion of the lower terminal of the double-layer terminal.

[0013] Furthermore, the second welding portion of the single-layer terminal and the first welding portion of the upper terminal of the double-layer terminal are both oriented toward the outside of the insulating body.

[0014] Furthermore, each of the single-layer terminals includes a fixing portion 2, which extends upward to form an arm portion 2, the end of which protrudes toward the slot side to form a contact portion 2, the lower end of which is connected to the welding portion 2, and a bayonet is provided on the fixing portion 2, and a card block that matches the bayonet is provided on the inner wall of the terminal slot, and one side of the bayonet protrudes out to be clamped and fixed on the card point on the card block.

[0015] Furthermore, a metal locking structure is provided at the other end of the insulating body for locking the electronic module.

[0016] Furthermore, the metal lock structure has a spring-piece anti-retraction structure.

[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 traditional two-row single-row terminals, thereby increasing the signal transmission channel and greatly improving the signal transmission speed; by embedding the double-layer terminals and the plugs together, only allowing the plugs to be fixed in the terminal slots by plug-in fixing, the assembly error rate can be reduced, and the single-layer terminals are fixed in the terminal slots by plug-in fixing, which can reduce the embedded molding process and reduce the manufacturing cost; the welding portion of the single-layer terminal is designed to be in the same direction as the welding portion of one layer of the double-layer terminal, so that the number of welding portions in the same direction is greater than the number of welding portions in the opposite direction, which makes it more convenient to check the welding effect; the welding portion 2 of the single-layer terminal and the welding portion 1 of the upper terminal of the double-layer terminal are designed to face the outside of the insulating body, which is not only convenient for checking the welding effect, but also more conducive to PCB routing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional exploded view of the high-speed communication memory card edge connector and the electronic module of the present invention; Figure 2 is a three-dimensional diagram of a high-speed communication memory card edge connector; Figure 3 is a three-dimensional diagram of an insulating body; Figure 4 is a three-dimensional view of the insulating body from another angle; Figure 5 is a perspective view of a terminal and a plug; Figure 6 for Figure 5 A three-dimensional view of a partial terminal and a plug; Figure 7 for Figure 5 A front view of a double-layer terminal and a plug in FIG. Figure 8 for Figure 7 A three-dimensional diagram of a double-layer terminal; Fig. 9 for Figure 7 A three-dimensional view of a plug; Fig.10 for Figure 5 A three-dimensional diagram of a single-layer terminal in FIG. Fig.11 A cross-sectional view of the position of the terminal slot of the insulating body for accommodating the double-layer terminal; Fig.12 for Fig.11 Cross-sectional view of the junction with the double-layer terminal; Fig.13 A cross-sectional view of the position of the terminal slot of the insulating body for accommodating the single-layer terminal; Fig.14 for Fig.13 Cross-sectional view of the junction with the single-layer terminal; Fig.15 It is a three-dimensional exploded view of another embodiment of the high-speed communication memory card edge connector of the present invention; Fig.16 It is a three-dimensional diagram of the metal lock card structure; Fig.17 A three-dimensional diagram of a terminal and a plug of another embodiment of a high-speed communication memory card edge connector of the present invention; Fig.18 for Fig.17 A three-dimensional view of a partial terminal and a plug; Fig.19 for Fig.17 A three-dimensional diagram of a single-layer terminal in FIG. Fig. 20 It is a cross-sectional view at the single-layer terminal position.

[0019] Description of the accompanying drawings: insulating body 1, slot 11, longitudinal side wall 12, tower part 13, terminal slot 14, block 141, anti-fool part 15, terminal 2, fixing part 21, arm part 22, contact part 23, welding part 24, holding part 25, fixing part 26, bayonet 261, card point 262, arm part 27, contact part 28, welding part 29, plug 3, main board 31, protruding part 32, notch 33, holding part 34, ear buckle 4, metal lock structure 5, spring piece 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 1-14 As shown, the high-speed communication memory card edge 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. A tower portion 13 (with an ear buckle accommodating space) is provided at both ends of the length direction of the insulating body 1. The tower portion 13 has a pivoting portion for pivoting the ear buckle. The two ends of the slot 11 pass through the corresponding tower portion 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 have the same size and different structures. The terminal slots 14 pass through the top and bottom surfaces of the insulating body 1, and the terminal slots 14 also pass through the slot-facing surface of the longitudinal side walls 12. The slot 11 is provided with an anti-mistake portion 15 connecting the two longitudinal side walls 12. The anti-mistake portion 15 divides the slot 11 into slot one and slot two whose length is shorter than slot one. The anti-mistake portion 15 is used to prevent the electronic module 6 from being reversely inserted.

[0023] An ear button 4 is provided on one of the tower portions 13 of the insulating body 1, and an ear button 4 is also provided on the other tower portion 13. The two ear buttons 4 are buckled and fixed on the two 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 tower portions 13 of the insulating body 1 for connecting 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 double-layer terminals can be configured in multiple spaced terminal slots), and the remaining terminal slots 14 are single-layer terminals, and each single-layer terminal is fixed in the corresponding terminal slot 14 in an insertion manner. At the position of the double-layer terminal, the two terminals 2 in each terminal slot 14 are embedded and molded together with a plug, and the plug 3 is inserted and fixed in the terminal slot 14.

[0025] The double-layer terminal includes a lower terminal and an upper terminal, and the structures of the lower terminal and the upper terminal of the single-layer terminal and the double-layer terminal in the remaining terminal slots 14 are different. Each of the upper terminal and the lower terminal includes a fixing portion 21, which extends upward to form an arm portion 22, and the end of the arm portion 22 protrudes toward the slot 11 to form a contact portion 23, and the lower end of the fixing portion 21 is connected to a welding portion 24. The outer side of the fixing portion 21 of each upper terminal away from the slot 11 protrudes outward to form a buckling portion 25, and the buckling portion 25 is clamped and fixed on the inner wall of the terminal slot 14. The contact portion 23 of the upper terminal and the contact portion 23 of the lower terminal are in the same direction, the contact portion 23 of the upper terminal is higher than the contact portion 23 of the lower terminal, the welding portion 24 of the upper terminal is flush with the welding portion 24 of the lower terminal, and the welding portion 24 of the upper terminal and the welding portion 24 of the lower terminal are in opposite directions.

[0026] Each of the single-layer terminals includes a fixing portion 26, which extends upward to form an arm portion 27, the end of which protrudes toward the slot side to form a contact portion 28, the lower end of the fixing portion 26 is connected to the welding portion 29, and a bayonet 26 is provided on the fixing portion 26. A clamping block 141 that matches the bayonet 261 is provided on the inner wall of the terminal slot 14, and the clamping block 141 is connected to the two side walls of the terminal slot 14 along the length direction of the insulating body, and one side of the bayonet 261 protrudes out to a clamping point 262 that is clamped and fixed on the clamping block 141. The arm portion 27 and the contact portion 28 of the single-layer terminal are flush with the arm portion 1 22 and the contact portion 1 23 of the lower terminal respectively; the welding portion 29 of the single-layer terminal is in the same direction and flush with the welding portion 1 24 of the upper terminal, and in the opposite direction to the welding portion 1 24 of the lower terminal; and the welding portion 29 of the single-layer terminal and the welding portion 1 24 of the upper terminal are both facing the outside of the insulating body 1, and the welding portion 1 24 of the lower terminal is facing the inside of the insulating body 1.

[0027] The plug 3 includes a main board body 31, the top of the main board body 31 protrudes to form a protruding portion 32 on the side close to the slot 11 and the side away from the slot 11, and a notch 33 is formed between the two protruding portions 32. The main board body 31 and the two protruding portions 32 form a U-shaped structure. The protruding portion 32 on the side away from the slot 11 protrudes outward to form a retaining portion 34, and the retaining portion 34 is clamped and fixed on the inner wall of the terminal slot 14. Each fixing portion 1 21 is embedded and molded together with the main board body 31 of the plug 3, and each arm portion 1 22 extends out of the top of the plug 3. Specifically, the arm portion 1 22 of the lower terminal extends from the notch 33, and the arm portion 1 22 of the upper terminal extends from the top of the protruding portion 32 on the side away from the slot 11. The buckling portion 25 of the upper terminal extends out of the main board body 31 of the plug 3, and the plug 3 is firmly fixed in the terminal slot 14 of the insulating body 1 through the dual retaining effect of the buckling portion 25 and the retaining portion 34. The bottom surface of the main body 31 is substantially flush with the bottom surface of the insulating body 1 .

[0028] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in: by locally setting up double-layer terminals, the number of terminals is increased on the basis of the traditional two-row single-row terminals, thereby increasing the signal transmission channel and greatly improving the signal transmission speed; by embedding the double-layer terminals and the plug 3 together, only allowing the plug 3 to be fixed in the terminal slot 14 in an insertion-fixed manner, the assembly error rate can be reduced, and the single-layer terminals are fixed in the terminal slot 14 in an insertion-fixed manner, which can reduce the embedded molding process and reduce the manufacturing cost; the welding portion 29 of the single-layer terminal and the welding portion 24 of the upper terminal of the double-layer terminal are designed to face the outside of the insulating body 1, which is not only convenient for checking the welding effect, but also more conducive to PCB routing.

[0029] In other embodiments, Figure 15-16 As shown, an ear buckle 4 is provided on one tower portion 13 of the insulating body 1, and a metal lock structure 5 is provided on the other tower portion 13. The metal lock structure 5 has a spring anti-retraction structure 51. The ear buckle 4 and the metal lock structure are respectively fastened and fixed on both sides of the electronic module 6 inserted into the slot 11 to fix the electronic module 6. The use of a single-sided ear buckle can save space occupied by opening the ear buckle.

[0030] In other embodiments, Figure 17-20 As shown, the welding portion 29 of the single-layer terminal is in the same direction and flush with the welding portion 1 24 of the lower terminal, and in the opposite direction to the welding portion 1 24 of the upper terminal. In addition, the welding portion 29 of the single-layer terminal and the welding portion 1 24 of the lower terminal are both facing the inner side of the insulating body 1, and the welding portion 1 24 of the upper terminal faces the outer side of the insulating body 1. The welding portion 29 of the single-layer terminal is designed to be in the same direction as the welding portion 1 24 of the lower terminal of the double-layer terminal, so that the number of welding portions facing the same direction is greater than the number of welding portions facing the opposite direction, so that it is more convenient to check the welding effect.

[0031] In other embodiments, the welding portion 24 of the upper terminal and the welding portion 24 of the lower terminal in each longitudinal side wall 12 are oriented in the same direction.

[0032] 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 memory card edge 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 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 provided with single-layer terminals, and each single-layer terminal is fixed in the corresponding terminal groove by plug-in manner; at the position of the double-layer terminal, the two terminals in each terminal groove are embedded with a plug, and the plug is fixed in the terminal groove by plug-in; The welding portion 1 of one layer of the double-layer terminal faces the same direction as the welding portion 2 of the single-layer terminal, and the welding portion 1 of the other layer of the double-layer terminal faces the opposite direction to the welding portion 2 of the single-layer terminal.

2. The high-speed communication memory card edge connector according to claim 1, characterized in that: The double-layer terminal comprises a lower-layer terminal and an upper-layer terminal, and the structures of the lower-layer terminal and the upper-layer terminal of the single-layer terminal in the remaining terminal slots are different from those of the double-layer terminal.

3. The high-speed communication memory card edge connector according to claim 2, characterized in that: The contact portion 1 of the upper terminal is higher than the contact portion 1 of the lower terminal, the welding portion 1 of the upper terminal is flush with the welding portion 1 of the lower terminal, and the welding portion 1 of the upper terminal and the welding portion 1 of the lower terminal are in the same direction or in opposite directions.

4. The high-speed communication memory card edge connector according to claim 3, characterized in that: Each of the upper-level terminals and the lower-level terminals includes a fixing portion 1, which is embedded and molded together with the plug. The fixing portion 1 extends upward to form an arm portion 1 extending out of the top of the plug. The end of the arm portion 1 protrudes toward the slot side to form the contact portion 1. The lower end of the fixing portion 1 is connected to the welding portion 1. The fixing portion 1 of each upper-level terminal protrudes outward away from the outer side of the slot to form a retaining portion extending out of the plug. The retaining portion is clamped and fixed on the inner wall of the terminal slot.

5. The high-speed communication memory card edge connector according to claim 4, characterized in that: The plug includes a main board body, the top of the main board body protrudes at the side close to the slot and the side away from the slot to form a protruding portion, a notch is formed between the two protruding portions, the protruding portion away from the slot protrudes outward on the side away from the slot to form a retaining portion, the retaining portion is clamped and fixed on the inner wall of the terminal slot, an arm portion of the lower terminal protrudes from the notch, and an arm portion of the upper terminal protrudes from the top of the protruding portion away from the slot.

6. The high-speed communication memory card edge connector according to claim 2, characterized in that: The second welding portion of the single-layer terminal is oriented in the same direction as the first welding portion of the upper terminal of the double-layer terminal, and in the opposite direction to the first welding portion of the lower terminal of the double-layer terminal; or, the second welding portion of the single-layer terminal is oriented in the opposite direction to the first welding portion of the upper terminal of the double-layer terminal, and in the same direction as the first welding portion of the lower terminal of the double-layer terminal.

7. The high-speed communication memory card edge connector according to claim 6, characterized in that: The second welding portion of the single-layer terminal and the first welding portion of the upper-layer terminal of the double-layer terminal are both facing the outside of the insulating body.

8. The high-speed communication memory card edge connector according to claim 6 or 7, characterized in that: Each of the single-layer terminals includes a fixing portion 2, which extends upward to form an arm portion 2, the end of which protrudes toward the slot side to form a contact portion 2, the lower end of which is connected to the welding portion 2, and a bayonet is provided on the fixing portion 2, and a card block that matches the bayonet is provided on the inner wall of the terminal slot, and one side of the bayonet protrudes out to clamp and fix on the card point on the card block.

9. The high-speed communication memory card edge connector according to any one of claims 1 to 7, characterized in that: The other end of the insulating body is provided with a metal locking structure for locking the electronic module.

10. The high-speed communication memory card edge connector according to claim 9, characterized in that: The metal lock structure has a spring-piece anti-retraction structure.

Images