Stable DDR connector

Abstract

The utility model discloses a stable DDR connector. The stable DDR connector comprises an insulation body and a plurality of terminals. The insulation body is provided with a plug-in groove, and is also provided with a plurality of terminal grooves. And the plurality of terminals are respectively arranged in the corresponding terminal grooves. The first convex ribs are arranged on the inner wall surface of the inserting groove and extend up and down, the second convex ribs extend from the lower ends of the first convex ribs in the left-right direction, the contact area between the convex ribs and the memory card is increased through the second convex ribs extending in the left-right direction, the friction force of the memory card is increased, the memory card is not prone to loosening after being inserted, and the service life of the memory card is prolonged. The periphery of the lower side of the second convex rib intersects with the edge of the inserting groove, the second convex rib and the inserting groove are located on the same straight line, the friction force of the memory card is improved only after the memory card is about to be inserted in place, a user only needs to instantly increase the inserting force, the memory card can be smoothly inserted, and the problem that the memory card cannot be inserted into the inserting groove is solved.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a stable DDR connector. Background Technology

[0002] DDR, Double Data Rate Synchronous Dynamic Random Access Memory, should strictly be called DDR SDRAM, but is commonly referred to as DDR memory. A DDR connector is a connector that connects memory modules to the circuit board. For this type of storage product, the contact performance between the memory module and the DDR connector, as well as the soldering performance between the DDR connector and the circuit board, has a significant impact on the quality of the device.

[0003] Existing DDR connectors typically have a vertical structure, where the memory card stands upright after being inserted. Most DDR connectors are elongated, with slots on the body for the card to connect electrically to the terminals within the slot, enabling data transmission. The width of the DDR connector slot is slightly wider than the thickness of the memory module. When the slot width equals the memory module thickness, the memory module would be in full contact with the inner wall of the slot, resulting in very high friction, making it impossible to insert the memory module and establish contact with the terminals. To ensure a more secure and reliable insertion, some manufacturers use vertically extending strip-shaped ribs within the slot. While this design solves the insertion problem, the small size of these ribs provides limited friction, allowing the memory card to still loosen after insertion. Therefore, improvements to existing DDR connectors are necessary. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a stable DDR connector that can effectively solve the problem that the existing DDR connectors have small strip ribs, provide limited friction, and are still prone to loosening after the memory card is inserted.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stable DDR connector includes an insulating body and multiple terminals. The insulating body has a mating groove, and a first rib is provided on the inner wall of the mating groove. The first rib extends vertically, with its upper end encountering a guide slope. A second rib extends horizontally from the lower end of the first rib, and the lower periphery of the second rib intersects with the bottom edge of the mating groove, i.e., they are on the same straight line. The insulating body also has multiple terminal slots, all of which connect to the mating groove. Locking latches are provided at both ends of the insulating body. The multiple terminals are respectively disposed in their corresponding terminal slots. The contact portion of each terminal extends into the mating groove from the terminal slot, and the solder portion of each terminal extends outward from the lower side of the insulating body.

[0007] As a preferred embodiment, the guide slope is coated with a lubricating layer. The design of the lubricating layer allows the memory card to slide down quickly and contact the main body of the first protruding rib when the lower end of the memory card comes into contact with the guide slope during the insertion of the memory card into the slot. In addition, the lubricating layer reduces the friction between the lower end of the memory card and the guide slope, effectively reducing the stress on the guide slope and making the guide slope less prone to damage.

[0008] As a preferred embodiment, the lubricating layer is made of polyimide or silicone plastic.

[0009] As a preferred embodiment, a reinforcing layer is coated on the surface of both the first and second ribs to enhance their strength and prevent damage.

[0010] As a preferred embodiment, the reinforcing layer is made of TPU material.

[0011] As a preferred embodiment, the insulating body has multiple stress relief grooves on its peripheral side, which are arranged at intervals to effectively reduce the stress on the insulating body.

[0012] As a preferred embodiment, the upper end of the insertion slot is provided with a reinforcing groove, and a reinforcing member is provided in the reinforcing groove. The reinforcing member is made of metal.

[0013] As a preferred embodiment, the reinforcing groove has two fixing grooves. The reinforcing member includes a main body and two fixing feet. The main body is disposed in the reinforcing groove, and the two fixing feet extend downward from both sides of the main body. The two fixing feet are respectively inserted into the corresponding fixing grooves for fixation, making the assembly of the reinforcing member more secure and reliable.

[0014] As a preferred embodiment, the main body is U-shaped, which can provide all-round reinforcement to the insulating body.

[0015] As a preferred embodiment, the bottom of the insulating body is provided with a positioning groove.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] By providing a first protruding rib on the inner wall of the insertion slot, extending vertically, and a second protruding rib extending horizontally from the lower end of the first protruding rib, the horizontally extending second protruding rib increases the contact area between the rib and the memory card, increasing the friction of the memory card and making it less likely to loosen after insertion. In addition, the lower periphery of the second protruding rib intersects with the bottom edge of the insertion slot, and the two are on the same straight line. The second protruding rib only increases the friction of the memory card when it is about to be inserted into place. Users only need to increase the insertion force momentarily to insert the memory card smoothly, without the problem of the memory card not being able to be inserted into the slot.

[0018] This ensures that the lower periphery of the second rib intersects the edge of the insertion groove on the same straight line.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0020] Figure 1 This is a three-dimensional assembly diagram of a preferred embodiment of the present invention;

[0021] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of a preferred embodiment of the present invention from another angle;

[0024] Figure 5 This is a cross-sectional view of the insulating body in a preferred embodiment of the present invention;

[0025] Figure 6 yes Figure 5 A magnified view of a portion of the image.

[0026] Explanation of reference numerals in the attached diagram:

[0027] 10. Insulating body 11. Connecting slot

[0028] 12. First protruding rib; 121. Guide slope

[0029] 13. Second protruding rib; 14. Terminal slot

[0030] 15. Stress relief groove 16. Reinforcing groove

[0031] 17. Fixing groove 18. Positioning groove

[0032] 20. Terminal 21. Contact portion

[0033] 22. Welded part; 30. Locking buckle

[0034] 40. Lubricating layer; 50. Reinforcing layer

[0035] 60. Reinforcing component; 61. Main body.

[0036] 62. Fixed feet. Detailed Implementation

[0037] Please refer to Figures 1 to 6 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including an insulating body 10 and a plurality of terminals 20.

[0038] The insulating body 10 has a plug-in groove 11. A first protruding rib 12 is provided on the inner wall of the plug-in groove 11. The first protruding rib 12 extends vertically, and its upper end encounters a guide slope 121. A second protruding rib 13 extends horizontally from the lower end of the first protruding rib 12. The lower periphery of the second protruding rib 13 intersects with the bottom edge of the plug-in groove 11, meaning they are on the same straight line. The insulating body 10 also has multiple terminal slots 14, all of which are connected to the plug-in groove 11. The two ends of the insulating body 10... All are equipped with latches 30; in this embodiment, the guide slope 121 is coated with a lubricating layer 40. The design of the lubricating layer 40 allows the memory card to slide down quickly and contact the main body of the first protruding rib 12 when the lower end of the memory card comes into contact with the guide slope 121 during the insertion of the memory card into the insertion slot 11. The lubricating layer 40 also reduces the friction between the lower end of the memory card and the guide slope 121, effectively reducing the stress on the guide slope 121 and making it less prone to damage. The lubricating layer 40 is made of polyimide or silicone plastic. The surfaces of the first rib 12 and the second rib 13 are coated with a reinforcing layer 50 to enhance the strength of the first rib 12 and the second rib 13 and prevent damage to the first rib 12 and the second rib 13. The reinforcing layer 50 is made of TPU material. In addition, multiple stress relief grooves 15 are formed on the peripheral side of the insulating body 10. The multiple stress relief grooves 15 are arranged at intervals from left to right to effectively reduce the stress of the insulating body 10. Furthermore, a reinforcing groove 16 is formed at the upper end of the insertion groove 11. A reinforcing member 60 is provided in the reinforcing groove 16. It is made of metal; specifically, the reinforcing groove 16 has two fixing grooves 17, the reinforcing member 60 includes a main body 61 and two fixing feet 62. The main body 61 is disposed in the reinforcing groove 17, and the two fixing feet 62 extend downward from both sides of the main body 61. The two fixing feet 62 are respectively inserted into the corresponding fixing grooves 17 for fixation, so that the assembly of the reinforcing member 60 is more secure and reliable. The main body 61 is U-shaped, which can provide all-round reinforcement to the insulating body; and the bottom of the insulating body 10 has a positioning groove 18.

[0039] The multiple terminals 20 are respectively disposed in the corresponding terminal slots 14. The contact portion 21 of each terminal 20 extends into the insertion slot 11 from the terminal slot 14, and the welding portion 22 of each terminal 20 extends outward from the lower side of the insulating body 10.

[0040] The key design feature of this utility model is:

[0041] By providing a first rib on the inner wall of the insertion slot, extending vertically, and a second rib extending horizontally from the lower end of the first rib, the second rib increases the contact area between the rib and the memory card, increasing the friction of the memory card and making it less likely to loosen after insertion. In addition, the lower periphery of the second rib intersects with the edge of the insertion slot, and the two are on the same straight line. The second rib only increases the friction of the memory card when it is about to be inserted into place. Users only need to increase the insertion force momentarily to insert the memory card smoothly, without the problem of the memory card not being able to be inserted into the slot.

[0042] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A stable DDR connector, characterized by: The application relates to an insulation body and a plurality of terminals; the insulation body is provided with a plug-in slot, a first convex rib is arranged on the inner wall surface of the plug-in slot, the first convex rib extends upwards and downwards, the upper end of the first convex rib meets a guide slope, the lower end of the first convex rib extends outwards in the left-right direction and is provided with a second convex rib, the lower side edge of the second convex rib intersects with the bottom edge of the plug-in slot, a plurality of terminal slots are arranged on the insulation body, the terminal slots are communicated with the plug-in slot, and the two ends of the insulation body are provided with buckles; the plurality of terminals are arranged in the corresponding terminal slots, the contact part of each terminal extends into the plug-in slot from the terminal slot, and the welding part of each terminal extends outwards from the lower side of the insulation body.

2. The stable DDR connector of claim 1, wherein: The guide slope is coated with a lubricating layer.

3. The stable DDR connector of claim 2, wherein: The lubricating layer is made of polyimide or organic silicon plastic.

4. The stable DDR connector of claim 1, wherein: The surface of the first convex rib and the surface of the second convex rib are both coated with a reinforcing layer.

5. The stable DDR connector of claim 4, wherein: The reinforcing layer is made of TPU.

6. The stable DDR connector of claim 1, wherein: A plurality of stress relief grooves are arranged on the circumferential surface of the insulation body.

7. The stable DDR connector of claim 1, wherein: The upper end of the plug-in slot is provided with a reinforcing groove, the reinforcing groove is provided with a reinforcing piece, and the reinforcing piece is made of metal.

8. The stable DDR connector of claim 7, wherein: The reinforcing groove is provided with two fixing grooves, the reinforcing piece comprises a main body part and two fixing feet, the main body part is arranged in the reinforcing groove, the two fixing feet extend downwards from the two sides of the main body part, and the two fixing feet are respectively inserted into the corresponding fixing grooves and fixed.

9. The stable DDR connector of claim 8, wherein: The main body part is U-shaped.

10. The stable DDR connector of claim 1, wherein: The bottom of the insulation body is provided with a positioning groove.

Images