Low-stress DDR connector

Abstract

The utility model discloses a low stress type DDR connector. The low stress type DDR connector comprises a main body, a plurality of terminals and two lock catches, the main body is provided with a slot with an upward opening, and the slot is internally provided with a plurality of terminal slots; the plurality of terminals are respectively arranged in the corresponding terminal grooves, and each of the plurality of terminals is provided with a contact part and a welding part; the two lock catches are respectively arranged at two ends of the main body. The upper end face of the main body is provided with a plurality of first stress discharge grooves, and each first stress discharge groove is communicated with the corresponding terminal groove in an aligned manner, so that when the terminals and the main body are assembled, an external fixing mechanism can extend into the terminal grooves from the first stress discharge grooves and effectively fix the terminals, and the terminals are ensured not to displace or incline; precise assembly of the terminals is ensured, contact connection between the DDR connector and the memory card is more stable and reliable, internal stress concentration of the main body is effectively reduced through the slotting mode, and even if the strength of the main body is weakened due to heating, deformation or cracking caused by the influence of internal stress is avoided.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a low-stress 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. Current DDR connectors typically have a vertical structure, where the memory card stands upright after being inserted into the connector. Furthermore, most DDR connectors are elongated, with slots on the body for the card to be inserted and electrically connected to the terminals within the slots, thus enabling data transmission.

[0003] The main body of the DDR connector is made of plastic, and some residual stress remains inside after molding. Furthermore, the DDR connector is exposed to high temperatures during operation, which weakens the main body. Under these conditions, the main body may deform or crack due to internal stress. In addition, the DDR connector has multiple small terminals. During assembly with the main body, the terminals are easily displaced or tilted by airflow, resulting in inaccurate assembly and unstable contact between the DDR connector and the memory card. Therefore, it is necessary to improve the existing DDR connector. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a low-stress DDR connector, which can effectively solve the problems of deformation or cracking of the main body of the existing DDR connector due to internal stress, and displacement or tilting of the terminals due to airflow, resulting in inaccurate terminal assembly and unstable contact between the DDR connector and the memory card.

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

[0006] A low-stress DDR connector includes a main body, multiple terminals, and two latches. The main body has an upward-facing slot with multiple terminal slots inside. The multiple terminals are respectively disposed in their corresponding terminal slots, and each terminal has a contact portion and a solder portion. Each contact portion extends outward from the slot into the terminal slot, and each solder portion extends outward from the main body. The two latches are respectively disposed at both ends of the main body. The upper surface of the main body has multiple first stress relief grooves, each first stress relief groove being directly opposite a corresponding terminal slot. The bottom surface of each first stress relief groove has a stabilizing groove, and each stabilizing groove is connected to the corresponding terminal slot.

[0007] As a preferred embodiment, the upper surface of the main body is provided with a plurality of second stress relief grooves, which are arranged at intervals on the left and right and located in the middle of the upper surface of the main body.

[0008] As a preferred embodiment, a fixing groove is provided on the lower side of the main body, and a fixing component is provided in the fixing groove.

[0009] As a preferred embodiment, the fastener includes a body and a fixing foot, the body being disposed within a fixing groove, and the fixing foot extending downward from the lower side of the body.

[0010] As a preferred embodiment, the fixing foot is provided with a fixing hole.

[0011] As a preferred embodiment, there are three fixing slots, which are respectively opened at both ends and the middle of the lower side of the main body. Correspondingly, there are also three fixing members, which are respectively set in the corresponding fixing slots.

[0012] As a preferred embodiment, the two sides of the body extend into an embedding portion, which is embedded within the body.

[0013] As a preferred embodiment, the main body has multiple third stress relief grooves on its peripheral side, and these multiple third stress relief grooves are arranged at intervals on the left and right sides.

[0014] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0015] By providing multiple first stress relief grooves on the upper surface of the main body, each first stress relief groove is directly connected to the corresponding terminal groove. When the terminal is assembled with the main body, the external fixing mechanism can extend from the first stress relief groove into the terminal groove and effectively fix each terminal, ensuring that the terminal will not be displaced or tilted, ensuring the precise assembly of the terminal, and making the contact connection between the DDR connector and the memory card more stable and reliable. In addition, the grooved method effectively reduces the internal stress concentration of the main body. Even if the main body is weakened by heat, it will not be deformed or cracked due to internal stress, thus extending the service life of the DDR connector.

[0016] 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

[0017] Figure 1 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention;

[0018] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional view of a preferred embodiment of the present invention from another angle;

[0021] Figure 5 This is an enlarged schematic diagram of the fixing member in a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the attached diagram:

[0023] 10. Main body 11. Slot

[0024] 12. Terminal slot; 13. First stress relief groove

[0025] 131. Stabilizing tank; 14. Second stress relief tank

[0026] 15. Fixed groove 151. Fixed convex part

[0027] 16. Third stress relief groove; 20. Terminal

[0028] 21. Contact part; 22. Welding part

[0029] 30. Lock 40. Fastener

[0030] 41. Body 411. Embedded part

[0031] 412. Fixed ear; 42. Fixed foot

[0032] 421. Fixing hole. Detailed Implementation

[0033] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a main body 10, a plurality of terminals 20, and two latches 30.

[0034] The main body 10 has an upward-facing slot 11, within which multiple terminal slots 12 are formed. The upper surface of the main body 10 has multiple first stress-relieving grooves 13, each first stress-relieving groove 13 directly opposite a corresponding terminal slot 12. The bottom surface of each first stress-relieving groove 13 has a stabilizing groove 131, each stabilizing groove 131 communicating with and directly opposite a corresponding terminal slot 12. In this embodiment, the upper surface of the main body 10 has multiple second stress-relieving grooves 14, which are spaced apart and located at the center of the upper surface of the main body 10. The lower side of the main body 10 has a fixing groove 15, within which a fixing member 40 is provided. Specifically, the fixing member 40 includes a body 41 and fixing feet 42. The body 41 is disposed within the fixing groove 15. The fixed foot 42 extends downward from the lower side of the main body 41, and the fixed foot 42 is provided with a fixing hole 421; there are three fixing grooves 15, which are respectively opened at both ends and the middle of the lower side of the main body 10. Correspondingly, there are also three fixing members 40, which are respectively set in the corresponding fixing grooves 15; there are embedding parts 411 extending from both sides of the main body 41, which are embedded in the main body 10. The upper inner wall of the fixing groove 151 is provided with a fixing protrusion 151. The upper end of the main body 41 extends upward with two fixing ears 412, which are arranged at intervals, and the aforementioned fixing protrusion 151 is sandwiched between the two fixing ears 412; in addition, there are multiple third stress relief grooves 16 on the peripheral side of the main body 10, which are arranged at intervals from left to right.

[0035] The plurality of terminals 20 are respectively disposed in the corresponding terminal slots 12. Each of the plurality of terminals 20 has a contact portion 21 and a welding portion 22. Each contact portion 21 extends outward from the slot 11 in the terminal slot 12, and each welding portion 22 extends outward from the body 10.

[0036] The two latches 30 are respectively located at both ends of the main body 10.

[0037] The key design feature of this utility model is:

[0038] By providing multiple first stress relief grooves on the upper surface of the main body, each first stress relief groove is directly connected to the corresponding terminal groove. When the terminal is assembled with the main body, the external fixing mechanism can extend from the first stress relief groove into the terminal groove and effectively fix each terminal, ensuring that the terminal will not be displaced or tilted, ensuring the precise assembly of the terminal, and making the contact connection between the DDR connector and the memory card more stable and reliable. In addition, the grooved method effectively reduces the internal stress concentration of the main body. Even if the main body is weakened by heat, it will not be deformed or cracked due to internal stress, thus extending the service life of the DDR connector.

[0039] 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 low-stress DDR connector, comprising a body, a plurality of terminals, and two latches; the body has an upward-facing slot, the slot having a plurality of terminal slots; the plurality of terminals are respectively disposed in corresponding terminal slots, each terminal having a contact portion and a solder portion, each contact portion extending outward from the slot into the slot, and each solder portion extending outward from the body; the two latches are respectively disposed at both ends of the body; characterized in that: The upper surface of the main body is provided with a plurality of first stress relief grooves, each first stress relief groove being directly opposite to a corresponding terminal groove, and the bottom surface of each first stress relief groove is provided with a stabilizing groove, each stabilizing groove being connected to and directly opposite to a corresponding terminal groove.

2. The low-stress DDR connector according to claim 1, characterized in that: The upper surface of the main body is provided with a plurality of second stress relief grooves, which are arranged at intervals on the left and right and located in the middle of the upper surface of the main body.

3. The low-stress DDR connector according to claim 1, characterized in that: A fixing groove is provided on the lower side of the main body, and a fixing component is provided in the fixing groove.

4. The low-stress DDR connector according to claim 3, characterized in that: The fastener includes a body and a fixing foot. The body is disposed in a fixing groove, and the fixing foot extends downward from the lower side of the body.

5. The low-stress DDR connector according to claim 4, characterized in that: The fixing foot has a fixing hole.

6. The low-stress DDR connector according to claim 3, characterized in that: There are three fixing slots, which are respectively opened at both ends and the middle of the lower side of the main body. Correspondingly, there are also three fixing members, which are respectively set in the corresponding fixing slots.

7. The low-stress DDR connector according to claim 4, characterized in that: The main body has embedding portions extending from both sides, which are embedded within the main body.

8. The low-stress DDR connector according to claim 1, characterized in that: Multiple third stress relief grooves are provided on the peripheral side of the main body, and these multiple third stress relief grooves are arranged at intervals on the left and right.

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