A dual layer terminal card edge connector mechanism

Abstract

The utility model provides a kind of double-layer terminal card edge connector mechanism, including an insulating body, with a lengthwise slot, multiple terminal slots are respectively arranged in the lengthwise side wall of both sides of slot;Multiple terminals are respectively one-to-one corresponding and are received in the corresponding terminal slot in two lengthwise side walls, at least a part of terminal slot is provided with double-layer terminal, each terminal includes elastic force arm, elastic force arm has the contact point of protruding into slot and contact with electronic module, double-layer terminal includes upper terminal and lower terminal, the contact point of upper terminal is higher than the contact point of lower terminal;At least one ear buckle is pivotally connected at one end of insulating body, ear buckle has top-up portion, the vertex of top-up portion is over the contact point of lower terminal but not over the contact point of upper terminal when ear buckle is opened;The double-layer terminal card edge connector mechanism can effectively eject electronic module.

Description

Technical Field

[0001] This utility model belongs to the field of connectors, specifically relating to a double-layer terminal block connector mechanism. Background Technology

[0002] Chinese patent CN202411745993.5 discloses a high-speed communication storage electrical connector, including an insulating body and multiple terminals housed within the insulating body.

[0003] The top surface of the insulating body is recessed in the middle along the longitudinal direction to form a longitudinal slot for inserting an electronic module (electronic card). The slot has longitudinal sidewalls arranged along the length of the slot on both sides, and multiple terminal slots are provided on the longitudinal sidewalls on both sides of the slot.

[0004] The insulating body has a tower at each end along its length. One tower contains a space for receiving ear clips, and the tower also has a pivot part for connecting the ear clips. The other tower has a metal locking structure with a spring-loaded anti-retraction mechanism. The single-sided ear clip design saves space occupied by the ear clips when they are opened. The ear clips and the metal locking structure are fastened and fixed to both sides of the electronic module inserted into the slot to secure the electronic module.

[0005] Multiple terminals are respectively housed in corresponding terminal slots within the two longitudinal sidewalls. Some terminals within each longitudinal sidewall are configured as double-layer terminals, meaning at least a portion of the terminal slots contain double-layer terminals, while the remaining slots contain single-layer terminals. The double-layer terminals include a lower layer terminal and an upper layer terminal. The upper layer terminal of the double-layer terminal is inserted and fixed into the terminal slot from the top of the insulating body downwards, while the lower layer terminal of the double-layer terminal is inserted and fixed into the terminal slot from the bottom of the insulating body upwards. The single-layer terminals are inserted and fixed into the terminal slot from the bottom of the insulating body upwards, and each single-layer terminal is flush with the lower layer terminal and forms a row.

[0006] Both the upper and lower terminals include a fixing part that is fixed in the corresponding terminal slot. The fixing part extends upward and downward to form an upper arm and a lower arm, respectively. The lower end of the lower arm is bent towards the inside of the insulating body to form a welding part. The upper end of the upper arm of the lower terminal protrudes towards the slot to form a contact part. The upper end of the upper arm of the upper terminal extends towards the slot to form an upper inclined arm. The end of the upper inclined arm is bent downward to form a lower inclined contact arm. The end of the lower inclined contact arm is the contact end, which extends into the slot and is higher than the contact part.

[0007] The aforementioned high-speed communication storage connector can eject the electronic module by opening the latch, which helps to remove the electronic module. However, if the latch opens too wide, it will not save operating space, and if the latch opens too narrowly, it will not effectively eject the electronic module. Therefore, it is urgent to design an ejection mechanism that can both avoid the latch opening angle being too wide and effectively eject the electronic module. Utility Model Content

[0008] The purpose of this invention is to provide a double-layer terminal block connector mechanism to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the technical solution used in this utility model is as follows: A double-layer terminal block connector mechanism, comprising: An insulating body has a longitudinally elongated slot recessed from top to bottom for inserting an electronic module, and multiple terminal slots are respectively provided in the longitudinally elongated sidewalls on both sides of the slot. Multiple terminals are respectively housed in corresponding terminal slots within the two longitudinal side walls. At least a portion of the terminal slots are equipped with double-layer terminals, while the remaining terminal slots are equipped with single-layer terminals. Each terminal includes an elastic lever arm with a contact point that protrudes into the slot and contacts the electronic module. The double-layer terminal includes an upper terminal and a lower terminal, with the contact point of the upper terminal being higher than that of the lower terminal. At least one ear clip is pivotally connected to one end of the insulating body. The ear clip has a first state in which it lifts up the electronic module when it is open and a second state in which it closes the electronic module when it is closed. The ear clip has a lifting portion located below the electronic module that lifts up the electronic module. When the ear clip is open, the apex of the lifting portion passes over the contact point of the lower terminal but does not pass over the contact point of the upper terminal.

[0010] Furthermore, the opening angle of the ear loop when it is opened is less than or equal to 30 degrees.

[0011] Furthermore, at the position of the double-layer terminal, two terminals in each terminal slot are embedded together with a plug, the plug is inserted and fixed in the terminal slot, and each single-layer terminal is fixed in the corresponding terminal slot by insertion.

[0012] Furthermore, at the position of the double-layer terminal, a lower terminal and an upper terminal in each terminal slot are embedded together with a plug in the terminal slot; at the position of the single-layer terminal, a terminal in each terminal slot is embedded together with a plug in the terminal slot; each plug is inserted and fixed in the corresponding terminal slot.

[0013] Furthermore, the upper terminal is inserted and fixed in the terminal slot from the top of the insulating body downwards, and the lower terminal is inserted and fixed in the terminal slot from the bottom of the insulating body upwards; the single-layer terminal is inserted and fixed in the terminal slot from the bottom of the insulating body upwards or from the top of the insulating body downwards.

[0014] Furthermore, the upper terminal is inserted and fixed in the terminal slot from the side away from the slot in the width direction of the insulating body to the side closer to the slot, and the lower terminal is inserted and fixed in the terminal slot from the bottom of the insulating body upwards; the single-layer terminal is inserted and fixed in the terminal slot from the bottom of the insulating body upwards or from the side away from the slot in the width direction of the insulating body to the side closer to the slot.

[0015] Furthermore, both sides of the center of the bottom surface of the insulating body are recessed with longitudinally elongated receiving grooves, and at least one plug is fixed in each receiving groove, which is inserted upward from the bottom of the insulating body; the upper terminal is inserted and fixed in the terminal groove from the bottom of the insulating body, and each plug is embedded with a row of terminals consisting of multiple lower terminals and single-layer terminals.

[0016] Furthermore, the insulating body is covered with a metal outer shell.

[0017] Furthermore, a metal connecting piece is provided on one end of the insulating body that is pivotally connected to the ear loop; or a metal locking mechanism is provided inside the other end of the insulating body that is not pivotally connected to the ear loop.

[0018] Furthermore, the slot is provided with a foolproof part connecting the two longitudinal sidewalls, and a metal protective piece covers the foolproof part.

[0019] Compared with the prior art, the main advantages of this utility model are reflected in: (1) When the ear clip is opened, the top of the lifting part passes over the contact point of the lower terminal, effectively pushing the electronic module out of the lower terminal; when the ear clip is opened, the top of the lifting part does not pass over the contact point of the upper terminal, which can accurately and effectively push the electronic module out of the upper terminal, while avoiding the ear clip opening too much and saving operating space.

[0020] (2) The opening angle of the ear clip is controlled to be less than or equal to 30 degrees, which effectively saves space and avoids the ear clip from being easily broken if the opening angle is too wide. Attached Figure Description

[0021] Figure 1 An exploded perspective view of one embodiment of the double-layer terminal edge connector mechanism of this utility model; Figure 2 for Figure 1 A three-dimensional view of the terminals in the diagram; Figure 3 This is a cross-sectional view at the location of a single-layer terminal; Figure 4 This is a cross-sectional view at the location of the double-layer terminal; Figure 5 for Figure 1 A 3D assembly diagram with the electronic module; Figure 6 for Figure 5 Cross-sectional view; Figure 7 for Figure 5 A diagram showing the right ear loop in the open position; Figure 8 for Figure 1 A 3D diagram of the earrings; Figure 9 A three-dimensional schematic diagram showing the relationship between the open ear clip position and the two upper terminals and two lower terminals; Figure 10 for Figure 9 The front view; Figure 11 This is a cross-sectional view of the single-layer terminal and the insulating body in another embodiment of the single-layer terminal insertion method; Figure 12 This is a cross-sectional schematic diagram of the combination of the double-layer terminal and the insulating body in another embodiment of the double-layer terminal and plug embedding molding method; Figure 13 This is a cross-sectional schematic diagram of the single-layer terminal and the insulating body in another embodiment of the single-layer terminal and plug embedding molding method; Figure 14 This is a cross-sectional view of the double-layer terminals combined with the insulating body in other embodiments where the upper layer terminals are inserted from top to bottom and the lower layer terminals are inserted from bottom to top; Figure 15 This is a cross-sectional view of a single-layer terminal combined with an insulating body in other embodiments where the upper layer terminal is inserted from top to bottom and the lower layer terminal is inserted from bottom to top. Figure 16 This is a cross-sectional view of a single-layer terminal combined with an insulating body in another embodiment where the upper layer terminal is inserted from the outside in and the lower layer terminal is inserted from the bottom up. Figure 17 This is a cross-sectional view of the double-layer terminals combined with the insulating body in other embodiments where the upper layer terminals are inserted from the outside in and the lower layer terminals are inserted from the bottom up. Figure 18 This is a cross-sectional view of a double-layer terminal combined with an insulating body, in which the upper terminal is inserted from bottom to top in other embodiments, and the plug is embedded with a single-layer terminal and a lower terminal. Figure 19 This is a cross-sectional view of the single-layer terminal combined with the insulating body in another embodiment where the upper layer terminal is inserted from bottom to top and the plug is embedded with a single-layer terminal and a lower layer terminal. Figure 20 This is an exploded perspective view of adding a metal casing in other embodiments; Figure 21 An exploded perspective view of adding a metal protective component in other embodiments; Figure 22 To remove Figure 21 A three-dimensional assembly diagram of the electronic module.

[0022] Figure 23 An exploded perspective view of a structure in other embodiments where an ear loop is provided on one side and a metal locking clip is provided on the other side; Figure 24 for Figure 23 A cross-sectional view after assembly; Figure 25 An exploded perspective view of adding two metal connecting pieces in other embodiments; Figure 26 for Figure 25 A three-dimensional schematic diagram of the insulating body, terminals, and metal connecting pieces.

[0023] Reference numerals: 1. Insulating body, 11. Slot, 12. Longitudinal side wall, 13. Tower, 14. Terminal slot, 15. Foolproof part, 2. Terminal, 21. Fixing part, 211. Elastic lever arm, 22. Welding part, 23. Contact point, 24. Ear clip, 3. Main body, 31. Lifting part, 32. Pivot shaft, 33. Fastening part, 34. Wrench part, 35. Locking point, 36. Iron foot, 4. Electronic module, 5. Plug, 6. Metal shell, 7. Metal locking structure, 8. Metal protective part, 9. Metal connecting piece, 10. Detailed Implementation

[0024] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 1-10 As shown, the double-layer terminal block connector mechanism includes an insulating body 1 and a plurality of terminals 2 housed within the insulating body 1.

[0026] The top surface of the insulating body 1 is recessed in the middle along its longitudinal direction to form a longitudinally elongated slot 11. A tower portion 13 is provided at both ends of the insulating body 1 along its length. The two ends of the slot 11 extend into the tower portion 13. Each tower portion 13 at both ends of the insulating body 1 has a latch receiving space, and a latch 3 is provided within the latch receiving space. The two latches 3 are fastened and fixed to both sides of the electronic module 5 inserted into the slot 11 to secure the electronic module 5. An iron foot 4 is fixed to the bottom of each of the two tower portions 13 of the insulating body 1 for connection to the circuit board to fix the insulating body 1 to the circuit board.

[0027] The slot 11 has longitudinal sidewalls 12 arranged along its length on both sides. Each longitudinal sidewall 12 on both sides of the slot 11 is provided with multiple terminal slots 14, which penetrate the top surface, bottom surface, and slot-facing surface of the longitudinal sidewall 12. The multiple terminals 2 are respectively housed in corresponding terminal slots 14 within the two longitudinal sidewalls 12. The slot 11 is provided with a foolproof part 15 connecting the two longitudinal sidewalls 12. The foolproof part 15 divides the slot 11 into slot one and slot two, which is shorter than slot one. The foolproof part 15 is used to prevent the electronic module 5 from being inserted in reverse.

[0028] Each of the two longitudinal sidewalls 12 has multiple spaced areas, each area containing a double-layer terminal, while the terminal slots 14 between adjacent areas contain single-layer terminals. The double-layer terminals include lower and upper terminals, with each area containing multiple upper and lower terminals. In the double-layer terminal position, each terminal slot 14 accommodates one upper terminal and one lower terminal; in the single-layer terminal position, each terminal slot 14 accommodates one terminal.

[0029] The upper and lower terminals of the double-layer terminal are inserted and fixed in the terminal slot 14 from the bottom upward of the insulating body 1. The single-layer terminal is inserted and fixed in the terminal slot 14 from the bottom upward of the insulating body 1. 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. The single-layer terminal is also a lower terminal relative to the upper terminal. Each single-layer terminal has a different structure from the upper terminal. The terminal slot 14 that accommodates one single-layer terminal has the same structure as the terminal slot 14 that accommodates both one lower terminal and one upper terminal.

[0030] The single-layer terminal, upper-layer terminal, and lower-layer terminal all include a fixing part 21, an elastic arm 22 extending upward from the fixing part 21, and a welding part 23 extending downward from the fixing part 21 beyond the bottom of the insulating body 1. The elastic arm 22 has a contact point 24 that protrudes into the slot 11. Each fixing part 21 is fixed in the corresponding terminal slot 14.

[0031] The elastic lever arm 22 of the upper terminal is longer than that of the lower terminal. The contact point 24 of the upper terminal is higher than that of the lower terminal. The welding part 23 of the upper terminal is flush with the welding part 23 of the lower terminal. The welding parts 23 of the upper terminal and the welding parts 23 of the lower terminal have the same orientation and both face the outside of the insulating body 1. The welding parts 23 of the single-layer terminal have the same orientation and both face the outside of the insulating body 1. The structure and height of the single-layer terminal are the same as those of the lower terminal.

[0032] The ear clip 3 includes a main body 31. The lower end of the main body 31 protrudes inward to form a lifting portion 32. The two sides of the main body 31 parallel to the slot 11 protrude outward to form pivot shafts 33. The pivot shafts 33 on both sides of the main body 31 are pivotally connected to both sides of the ear clip receiving space of the tower portion 13. A fastening portion 34 is provided at the upper end of the main body 31. The ear clip 3 has a lever portion 35 at the upper end of the fastening portion 34, and locking points 36 are provided on both sides of the main body 31 above the pivot shafts 33.

[0033] After the ear clip 3 is installed in the ear clip receiving space, the lever part 34 is operated to make the ear clip 3 have a first state where it lifts the electronic module 5 when open and a second state where it closes the electronic module 5 when closed (when the ear clip 3 is closed, the locking point 35 is locked at the side wall of the ear clip receiving space, so that the ear clip 3 can remain in the closed state). The lifting part 32 of the ear clip 3 is located below the electronic module 5. When the ear clip 3 is opened, it can lift the electronic module 5. When the ear clip 3 is opened, the apex of the lifting part 32 passes over the contact point 24 of the lower terminal but does not pass over the contact point 24 of the upper terminal. The apex of the lifting part 32 passing over the contact point 24 of the lower terminal can effectively push out the electronic module 5; the apex of the lifting part 32 not passing over the contact point 24 of the upper terminal can prevent the ear clip 3 from opening too much and save operating space. The opening angle of the ear clip 3 (the angle between the ear clip 3 and the electronic module 5) is less than or equal to 30 degrees, which effectively saves space and avoids breaking the ear clip 3 if it is opened too wide.

[0034] Provided that the apex of the raised portion 32 of the ear clip 3 extends beyond the contact point 24 of the lower terminal and the apex of the raised portion 32 does not extend beyond the contact point 24 of the upper terminal, the assembly method of the double-layer terminal and the single-layer terminal of this utility model can also have the following other embodiments: In other embodiments, such as Figure 11-12 As shown, at the position of the double-layer terminal, two terminals 2 in each terminal slot 14 are embedded together with a plug 6. The plug 6 is inserted and fixed in the terminal slot 14, and each single-layer terminal is fixed in the corresponding terminal slot 14 by insertion.

[0035] Or, such as Figure 12-13 As shown, at the position of the double-layer terminal, a lower terminal and an upper terminal in each terminal slot 14 are embedded together with a plug 6 in the terminal slot 14; at the position of the single-layer terminal, a terminal in each terminal slot 14 is embedded together with a plug 6 in the terminal slot 14; each plug 6 is inserted and fixed in the corresponding terminal slot 14.

[0036] Or, such as Figure 14-15As shown, the upper terminal is inserted and fixed in the terminal slot 14 from the top of the insulating body 1 downwards, and the lower terminal is inserted and fixed in the terminal slot 14 from the bottom of the insulating body 1 upwards; the single-layer terminal is inserted and fixed in the terminal slot 14 from the bottom of the insulating body 1 upwards or from the top of the insulating body 1 downwards.

[0037] Or, such as Figure 16-17 As shown, the upper terminal is inserted and fixed in the terminal slot 14 from the side away from the slot 11 in the width direction of the insulating body 1 towards the side closer to the slot 11, and the lower terminal is inserted and fixed in the terminal slot 14 from the bottom of the insulating body 1 upwards; the single-layer terminal is inserted and fixed in the terminal slot 14 from the bottom of the insulating body 1 upwards or from the side away from the slot 11 in the width direction of the insulating body 1 towards the side closer to the slot 11.

[0038] Or, such as Figure 18-19 As shown, both sides of the center of the bottom surface of the insulating body 1 are recessed with longitudinally elongated receiving grooves, and at least one plug 6 is fixed in each receiving groove, which is inserted upward from the bottom of the insulating body 1; the upper terminal is inserted upward from the bottom of the insulating body 1 and fixed in the terminal groove 14, and each plug 6 is embedded with a row of terminals consisting of multiple lower terminals and single-layer terminals.

[0039] Provided that the apex of the raised portion 32 of the ear clip 3 extends beyond the contact point 24 of the lower terminal and the apex of the raised portion 32 does not extend beyond the contact point 24 of the upper terminal, this utility model can also have a metal shell 7 fitted over the outside of the insulating body 1 to provide shielding (e.g., Figure 20 (As shown).

[0040] Provided that the apex of the raised portion 32 of the ear clip 3 extends beyond the contact point 24 of the lower terminal and the apex of the raised portion 32 does not extend beyond the contact point 24 of the upper terminal, this utility model can also add a metal protective component 9 to cover the anti-foolproof portion 15 (e.g. Figure 21-22 As shown, the error-proof part will not be damaged when the electronic module 5 is plugged in repeatedly.

[0041] Provided that the apex of the raised portion 32 of the ear clip 3 extends beyond the contact point 24 of the lower terminal and the apex of the raised portion 32 does not extend beyond the contact point 24 of the upper terminal, the other end of the insulating body 1 may not be provided with an ear clip, and a metal locking structure 8 (such as...) is provided at the end without the pivot ear clip. Figure 23-24 As shown), the electronic module 5 is locked by an ear loop 3 and a metal locking structure 8.

[0042] Provided that the apex of the raised portion 32 of the ear clip 3 extends beyond the contact point 24 of the lower terminal and the apex of the raised portion 32 does not extend beyond the contact point 24 of the upper terminal, this utility model can also add metal connecting pieces 10 (such as...) to the two tower portions 13. Figure 25-26 (as shown), to increase the strength of tower section 13.

[0043] There are other implementation methods for the setting of the area. In other implementation methods, double-layer terminals can be set in the terminal slot 14 of only one area on one of the longitudinal sidewalls 12, or double-layer terminals can be set in the terminal slot 14 of only one area on both longitudinal sidewalls 12.

[0044] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. A double-layer terminal edge connector mechanism, characterized in that, include: An insulating body has a longitudinally elongated slot recessed from top to bottom for inserting an electronic module, and multiple terminal slots are respectively provided in the longitudinally elongated sidewalls on both sides of the slot. Multiple terminals are respectively housed in corresponding terminal slots within the two longitudinal side walls. At least a portion of the terminal slots are equipped with double-layer terminals, while the remaining terminal slots are equipped with single-layer terminals. Each terminal includes an elastic lever arm with a contact point that protrudes into the slot and contacts the electronic module. The double-layer terminal includes an upper terminal and a lower terminal, with the contact point of the upper terminal being higher than that of the lower terminal. At least one ear clip is pivotally connected to one end of the insulating body. The ear clip has a first state in which it lifts up the electronic module when it is open and a second state in which it closes the electronic module when it is closed. The ear clip has a lifting portion located below the electronic module that lifts up the electronic module. When the ear clip is open, the apex of the lifting portion passes over the contact point of the lower terminal but does not pass over the contact point of the upper terminal.

2. The double-layer terminal block connector mechanism according to claim 1, characterized in that: The opening angle of the ear loops when they are opened is less than or equal to 30 degrees.

3. The double-layer terminal edge connector mechanism according to claim 1 or 2, characterized in that: At the position of the double-layer terminal, two terminals in each terminal slot are embedded together with a plug, and the plug is inserted and fixed in the terminal slot. Each single-layer terminal is fixed in the corresponding terminal slot by insertion.

4. The double-layer terminal edge connector mechanism according to claim 1 or 2, characterized in that: At the position of the double-layer terminal, a lower-layer terminal and an upper-layer terminal in each terminal slot are embedded together with a plug in the terminal slot; at the position of the single-layer terminal, a terminal in each terminal slot is embedded together with a plug in the terminal slot; each plug is inserted and fixed in the corresponding terminal slot.

5. The double-layer terminal block connector mechanism according to claim 1 or 2, characterized in that: The upper terminal is inserted and fixed in the terminal slot from the top of the insulating body downwards, and the lower terminal is inserted and fixed in the terminal slot from the bottom of the insulating body upwards; the single-layer terminal is inserted and fixed in the terminal slot from the bottom of the insulating body upwards or from the top of the insulating body downwards.

6. The double-layer terminal block connector mechanism according to claim 1 or 2, characterized in that: The upper terminal is inserted and fixed in the terminal slot from the side away from the slot in the width direction of the insulating body to the side closer to the slot, and the lower terminal is inserted and fixed in the terminal slot from the bottom of the insulating body upwards; the single-layer terminal is inserted and fixed in the terminal slot from the bottom of the insulating body upwards or from the side away from the slot in the width direction of the insulating body to the side closer to the slot.

7. The double-layer terminal edge connector mechanism according to claim 1 or 2, characterized in that: Both sides of the center of the bottom surface of the insulating body are recessed with longitudinally elongated receiving grooves, and at least one plug is fixed in each receiving groove, which is inserted from the bottom of the insulating body upwards; the upper layer terminal is inserted and fixed in the terminal groove from the bottom of the insulating body upwards, and each plug is embedded with a row of terminals consisting of multiple lower layer terminals and single layer terminals.

8. The double-layer terminal block connector mechanism according to claim 1 or 2, characterized in that: The insulating body is encased in a metal shell.

9. The double-layer terminal edge connector mechanism according to claim 1 or 2, characterized in that: One end of the insulating body is pivotally connected to the ear loop, and a metal connecting piece is provided thereon; or one end of the insulating body is not pivotally connected to the ear loop, and a metal locking mechanism is provided therein.

10. The double-layer terminal retaining connector mechanism according to claim 1 or 2, characterized in that: The slot is provided with a foolproof part that connects the two longitudinal side walls, and a metal protective piece covers the foolproof part.

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