Memory module test fixture and memory module test apparatus

Abstract

The utility model discloses a memory module test fixture and memory module testing equipment relate to memory module test technical field, wherein, memory module test fixture includes mounting seat, connector and limiting piece, and mounting seat is equipped with the positioning space for accommodating memory module, and the periphery of positioning space is equipped with the locating surface, and memory module is in the sliding abutment with locating surface when loading into positioning space, connector installs in positioning space, and is used for with memory module electricity is connected, limiting piece swing installation is on mounting seat, and is used for with memory module is limited in positioning space. The utility model provides technical scheme can reduce the risk of connector damage.

Description

Technical Field

[0001] This utility model relates to the field of memory module testing technology, and in particular to a memory module testing fixture and a memory module testing device. Background Technology

[0002] CAMM2 (Compression Attached Memory Module 2) is a new type of memory module package that has been adopted as an industry standard. It aims to replace traditional SO-DIMM (for laptops) and some UDIMM (for desktops) form factors, providing higher bandwidth, density, and heat dissipation performance. The CAMM2 is directly screwed and pressed onto the motherboard's crimp connector using screws for relevant testing.

[0003] In related technologies, if improper operation causes the CAMM2 and the crimp connector to not be fully aligned during the alignment and installation process, the spring contacts of the crimp connector may be damaged. Utility Model Content

[0004] The main purpose of this invention is to provide a memory module testing fixture and a memory module testing device, which aims to reduce the risk of connector damage.

[0005] To achieve the above objectives, the present invention proposes a memory module testing fixture for use in memory module testing equipment. The memory module testing fixture includes: The mounting base is provided with a positioning space for accommodating a memory module. The periphery of the positioning space is provided with a positioning surface, and the memory module slides and abuts against the positioning surface when it is installed into the positioning space. A connector, installed within the positioning space, for electrical connection with the memory module; and A limiting element is movably mounted on the mounting base and is used to confine the memory module within the positioning space.

[0006] In one embodiment, the positioning space includes a positioning groove and a positioning through hole. The positioning through hole is formed on the bottom surface of the positioning groove, the connector is fitted into the positioning through hole, and the side surface of the positioning groove is configured as the positioning surface.

[0007] In one embodiment, the lower plate surface of the memory module is supported by the bottom surface of the positioning groove, the bottom surface of the positioning groove is provided with a relief groove, and there is a gap between the bottom surface of the relief groove and the lower plate surface of the memory module; the connector protrudes upward from the bottom surface of the relief groove and abuts against the lower plate surface of the memory module.

[0008] In one embodiment, the top surface of the connector is provided with a first positioning post, and the memory module is provided with a first positioning hole corresponding to the first positioning post, and the first positioning post is adapted to be inserted into the first positioning hole.

[0009] In one embodiment, the mounting base has two opposing sidewalls with clearance notches, the two ends of which penetrate the outer side of the mounting base and the side of the positioning groove, respectively. The bottom surface of the clearance notch has a clearance groove, and the bottom surface of the clearance groove is lower than the bottom surface of the positioning groove.

[0010] In one embodiment, the groove opening of the positioning groove is provided with a guide surface, the guide surface being connected to the upper edge of the positioning surface, and the guide surface extending obliquely away from the center of the groove opening in a direction away from the positioning surface.

[0011] In one embodiment, the limiting member is detachably mounted on the mounting base and includes a limiting bracket and a limiting buckle, the limiting buckle being rotatably disposed on the limiting bracket and capable of engaging with the mounting base.

[0012] In one embodiment, the limiting buckle includes a first engaging portion, and the outer side of the mounting base is provided with a second engaging portion. The first engaging portion engages with the second engaging portion, and the bottom surface of the first engaging portion is higher than the bottom surface of the mounting base.

[0013] In one embodiment, the limiting member further includes a first elastic member connected between the limiting buckle and the limiting bracket, and the first elastic member tends to rotate the limiting buckle toward the fastening position.

[0014] In one embodiment, the mounting base is further provided with a plurality of second positioning posts, which are spaced apart around the periphery of the limiting member and abut against the outer surface of the limiting member.

[0015] In one embodiment, the limiting bracket has a mounting notch on its side for receiving the limiting buckle. The limiting bracket also includes a mounting part and an operating part. The mounting part is connected between the operating part and the first snap-fit ​​part. The mounting part is rotatably connected to the side wall of the mounting notch. The operating part is exposed outside the mounting notch.

[0016] In one embodiment, the limiting bracket includes a mounting bracket, a second elastic member, and a pressure block. The pressure block is movably mounted on the mounting bracket along the pressing direction. The pressure block has a pressing portion that protrudes from the bottom surface of the mounting bracket. The second elastic member is connected between the pressure block and the mounting bracket and is used to make the pressing portion tend to move away from the mounting bracket.

[0017] In one embodiment, the limiting bracket further includes a mounting shaft through which the pressure block passes. The mounting bracket has an elongated hole with its long axis extending along the pressing direction. The limiting member also includes a mounting shaft disposed on the mounting bracket, which is adapted to be inserted into the elongated hole.

[0018] This utility model also proposes a memory module testing device, comprising: The casing has a storage cavity and a window connecting to the storage cavity; The aforementioned memory module test fixture, wherein the memory module test fixture and the motherboard are at least partially housed within the receiving cavity, and at least the positioning space and limiting components of the memory module test fixture are exposed through the window.

[0019] The present invention provides a positioning space and a positioning surface on the mounting base. During the process of the memory module being installed in the positioning space and connected to the connector, the complete alignment of the memory module and the connector can be ensured, thereby reducing the risk of connector damage (such as spring damage). Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a structure of an embodiment of the memory module testing fixture provided by this utility model, in which the limiting member is not installed on the mounting base; Figure 2 for Figure 1 Another structural diagram of the embodiment shown, in which the limiting component has been installed in place; Figure 3 for Figure 2 A bottom view of the structure shown; Figure 4 for Figure 1 The diagram shows the assembly relationship between the embodiment and the memory module. Figure 5 for Figure 4 The illustrated embodiment is a schematic diagram after the memory module has been installed in place; Figure 6 for Figure 5 A cross-sectional view of the structure shown; Figure 7 for Figure 1 The front view of the limiting component shown; Figure 8for Figure 7 Exploded view of the limiting component shown; Figure 9 A schematic diagram of an embodiment of the memory module testing device provided by this utility model.

[0022] Explanation of icon numbers: 101. Memory module test fixture; 102. Memory module; 103. First positioning hole; 104. Housing; 105. Window; 200. Mounting base; 210. Positioning space; 211. Positioning surface; 212. Positioning groove; 213. Positioning through hole; 214. Clearance groove; 215. Guide surface; 220. Clearance notch; 230. Clearance recess; 240. Second snap-fit ​​part; 250. Second positioning post; 300. Connector; 310. First positioning post; 400. Restricting element; 410. Restricting bracket; 411. Mounting notch; 412. Mounting bracket; 413. Second elastic element; 414. Pressure block; 414a. Pressing part; 415. Mounting shaft; 416. Elongated hole; 417. Second blind hole; 418. Third blind hole; 420. Limiting buckle; 421. First locking part; 422. Mounting part; 423. Operating part; 424. First elastic element; 425. First blind hole.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] CAMM2 (Compression Attached Memory Module 2) is a new type of memory module packaging that has been adopted as an industry standard. It aims to replace traditional SO-DIMM (for laptops) and some UDIMM (for desktops) form factors, providing higher bandwidth, density, and heat dissipation performance. Hereinafter, CAMM2 will be referred to simply as a memory module. The memory module uses a compression connector, which is screwed directly onto the motherboard's compression connector for testing purposes.

[0028] In related technologies, on the one hand, during the alignment and installation of the memory module and the crimp connector, improper operation can lead to misalignment, which can easily damage the spring contacts of the crimp connector. On the other hand, using screws to fasten the memory module requires repeated screw removal and installation for each test, resulting in low efficiency in memory module assembly and disassembly.

[0029] In view of this, this utility model proposes a memory module testing fixture, which can achieve accurate alignment between the memory module and the connector, thereby reducing the risk of connector damage. Secondly, it can improve the efficiency of memory module assembly and disassembly.

[0030] Please see Figure 1 and Figure 2In one embodiment of this utility model, the memory module test fixture 101 is used in a memory module testing device. The memory module test fixture 101 includes a mounting base 200 and a connector 300. The mounting base 200 has a positioning space 210 for accommodating a memory module 102. The periphery of the positioning space 210 has a positioning surface 211. When the memory module 102 is inserted into the positioning space 210, it slides against the positioning surface 211. The connector 300 is installed in the positioning space 210 and is used for electrical connection with the memory module 102. A limiting member 400 is movably installed on the mounting base 200 and is used to limit the memory module 102 within the positioning space 210.

[0031] Specifically, the memory module test fixture 101 is pre-installed on the motherboard of the test equipment, for example, by being secured to the motherboard with multiple screws. At this time, the connector 300 is relatively fixed within the positioning space 210. Then, the memory module 102 to be tested is inserted into the positioning space 210 from top to bottom. During this insertion process, because the peripheral side of the memory module 102 slides against the positioning surface 211 and is guided and positioned by the positioning surface 211, the memory module 102 can be completely aligned with the connector 300. Finally, the limiting member 400 further constrains the memory module 102 within the positioning space 210.

[0032] The present invention provides a positioning space 210 and a positioning surface 211 on the mounting base 200. During the process of the memory module 102 being installed in the positioning space 210 and connected to the connector 300, the complete alignment of the memory module 102 and the connector 300 can be ensured, thereby reducing the risk of damage to the connector 300 (e.g., damage to the spring).

[0033] The type of connector 300 is not specifically limited; for example, it can be a crimp connector 300. The shapes of the memory module 102 and the positioning space 210 are also not specifically limited; for example, they can be regular shapes such as polygonal prisms (e.g., cuboids), cylinders, or elliptical cylinders, or they can be irregular shapes.

[0034] Please see Figure 1 and Figure 3 Optionally, in some embodiments, the positioning space 210 includes a positioning groove 212 and a positioning through hole 213. The positioning through hole 213 is formed on the bottom surface of the positioning groove 212, and the connector 300 is adapted to be embedded in the positioning through hole 213. The side surface of the positioning groove 212 includes a positioning surface 211. That is, the shape and size of the peripheral side surface of the connector 300 are adapted to the hole wall surface of the positioning through hole 213. After the connector 300 is installed in the positioning through hole 213, its peripheral side surface abuts against most of the hole wall surface of the positioning through hole 213, thereby relatively and fixedly constraining the connector 300 on the mounting base 200. The structure is simple and easy to implement.

[0035] Please see Figures 4 to 6 Optionally, in some embodiments, the lower surface of the memory module 102 is supported by the bottom surface of the positioning groove 212. The bottom surface of the positioning groove 212 is provided with a clearance groove 214, and there is a gap between the bottom surface of the clearance groove 214 and the lower surface of the memory module 102. The connector 300 protrudes upward from the bottom surface of the clearance groove 214 and abuts against the lower surface of the memory module 102. Specifically, after the memory module 102 is installed in the positioning space 210, a part of its lower surface is supported by the bottom surface of the positioning groove 212, and another part is supported by the top surface of the connector 300. At the same time, its upper surface is abutted by the limiting member 400, so that it can be stably constrained within the positioning groove 212. In this way, by providing the clearance groove 214, the problem of inaccurate positioning of the memory module 102 due to large-area contact between the memory module 102 and the bottom surface of the positioning groove 212 can be avoided. Of course, in other embodiments, the clearance sink 214 may not be provided.

[0036] Specifically, the top surface of connector 300 may be flush with the bottom surface of positioning groove 212, and the bottom surface of connector 300 may be flush with the bottom surface of mounting base 200. The top surface of connector 300 has a conductive structure for electrical connection with memory module 102, and the bottom surface of connector 300 has a conductive structure for electrical connection with motherboard.

[0037] Please see Figure 1 and Figure 4 Optionally, in some embodiments, the top surface of the connector 300 is provided with a first positioning post 310, and the memory module 102 is provided with a first positioning hole 103 corresponding to the first positioning post 310, with the first positioning post 310 being adapted to be inserted into the first positioning hole 103. In this way, the first positioning post 310 can also play a guiding and positioning role, so that the memory module 102 can be completely aligned with the connector 300. Of course, in other embodiments, the first positioning post 310 may not be provided.

[0038] Please see Figure 1 and Figure 5 Optionally, in some embodiments, the mounting base 200 has two opposing sidewalls with clearance notches 220. The two ends of the clearance notches 220 penetrate the outer side of the mounting base 200 and the side of the positioning groove 212, respectively. The bottom surface of the clearance notches 220 has a clearance groove 230, and the bottom surface of the clearance groove 230 is lower than the bottom surface of the positioning groove 212. Since the lower plate surface of the memory module 102 abuts against the bottom surface of the positioning groove 212, and the bottom surface of the clearance groove 230 is lower than the bottom surface of the positioning groove 212, there will be a gap between the bottom surface of the clearance groove 230 and the lower plate surface of the memory module 102. This gap allows the user to manually pick up the memory module 102, thereby facilitating the disassembly and replacement of the memory module 102.

[0039] Please see Figure 1 and Figure 5 Optionally, in some embodiments, the side of the positioning groove 212 further includes a guide surface 215. The guide surface 215 connects the edge of the groove opening of the positioning groove 212 and the positioning surface 211. In the direction away from the positioning surface 211, the guide surface 215 extends obliquely away from the center of the groove opening. Thus, by providing the guide surface 215, the memory module 102 can be easily installed into the positioning space 210. Of course, in other embodiments, the guide surface 215 may not be provided.

[0040] It should be noted that the limiting component 400 is movably mounted on the mounting base 200. This can mean that the limiting component 400 always maintains a connection with the mounting base 200, such as a rotatable connection or a sliding connection. It can also mean that the limiting component 400 can be completely removed from the mounting base 200, such as a snap-fit ​​connection or a screw connection.

[0041] For example, please see Figure 1 In some embodiments, the limiting member 400 is detachably mounted on the mounting base 200 and includes a limiting bracket 410 and a limiting buckle 420. The limiting buckle 420 is rotatably disposed on the limiting bracket 410 and can be fastened to the mounting base 200. Specifically, by releasing the fastening relationship between the limiting buckle 420 and the mounting base 200, the limiting member 400 can be completely removed from the mounting base 200. After the memory module 102 is inserted into the positioning space 210, the limiting bracket 410 is installed onto the mounting base 200, and then fastened to the mounting base 200 by the limiting buckle 420, so that the limiting member 400 is relatively fixedly constrained on the mounting base 200, thereby pressing the memory module 102.

[0042] Please see Figure 1 and Figure 6 Optionally, in some embodiments, the limiting buckle 420 includes a first engaging portion 421, and the outer side of the mounting base 200 is provided with a second engaging portion 240. The first engaging portion 421 and the second engaging portion 240 engage with each other, and the bottom surface of the first engaging portion 421 is higher than the bottom surface of the mounting base 200. This avoids interference between the first engaging portion 421 and the motherboard during rotation, thereby reducing the risk of motherboard damage. Optionally, the first engaging portion 421 can be a hook, and the second engaging portion 240 can be a slot.

[0043] Please see Figure 7 and Figure 8Optionally, in some embodiments, the limiting member 400 further includes a first elastic member 424, which is connected between the limiting buckle 420 and the limiting bracket 410, and gives the limiting buckle 420 a tendency to rotate toward the engaging position. Specifically, the limiting buckle 420 is rotatable and has an engaging position and an unengaged position. In the engaging position, the limiting buckle 420 engages with the second engaging portion 240, and in the unengaged position, the limiting buckle 420 disengages from the second engaging portion 240. After the user removes the operating force on the limiting buckle 420, the limiting buckle 420 automatically returns to the engaging position under the action of the first elastic member 424. In this way, the first elastic member 424 enables the limiting buckle 420 to be held more stably in the engaging position, thereby ensuring the stability of the connection between the limiting member 400 and the mounting base 200. Of course, in other embodiments, the first elastic member 424 may not be provided.

[0044] Please see Figure 6 and Figure 8 Optionally, in some embodiments, the side of the limiting bracket 410 is provided with a mounting notch 411 for receiving the limiting buckle 420. The limiting bracket 410 also includes a mounting part 422 and an operating part 423. The mounting part 422 is connected between the operating part 423 and the first snap-fit ​​part 421. The mounting part 422 is rotatably connected to the side wall of the mounting notch 411, and the operating part 423 is exposed outside the mounting notch 411. In this way, by providing the operating part 423 and exposing it outside the mounting notch 411, it is convenient for the user to apply operating force to rotate the limiting buckle 420. At the same time, by receiving the limiting buckle 420 inside the mounting notch 411, the width of the limiting member 400 can be reduced, which is beneficial to the miniaturization design of the test fixture.

[0045] The form and number of the first elastic element 424 can be varied. For example, in this embodiment, the first elastic element 424 can be a compression spring, and each limiting buckle 420 is provided with two first elastic elements 424.

[0046] Please refer to Figure 8 The limiting buckle 420 may have a first blind hole 425, and the limiting bracket 410 may have a second blind hole 417. One end of the first elastic member 424 is inserted into the first blind hole 425, and the other end of the first elastic member 424 is inserted into the second blind hole 417. This facilitates the assembly of the first elastic member 424, and the structure is simple and easy to implement.

[0047] Please see Figure 1 and Figure 5Optionally, in some embodiments, the mounting base 200 is further provided with a plurality of second positioning posts 250, which are spaced apart around the periphery of the limiting member 400 and abut against the outer surface of the limiting member 400. Thus, during the installation of the limiting member 400 from top to bottom onto the mounting base 200, the plurality of second positioning posts 250 cooperate to guide and position the limiting member 400, ensuring accurate installation on the mounting base 200 and allowing the limiting buckle 420 to be fully aligned with the second engaging portion 240, thereby facilitating the engagement of the first engaging portion 421 with the second engaging portion 240.

[0048] Please see Figures 6 to 8 Optionally, in some embodiments, the limiting bracket 410 includes a mounting bracket 412, a second elastic member 413, and a pressure block 414. The pressure block 414 is movably mounted on the mounting bracket 412 along the pressing direction. The pressure block 414 has a pressing portion 414a that protrudes from the bottom surface of the mounting bracket 412. The second elastic member 413 connects the pressure block 414 and the mounting bracket 412 and is used to make the pressing portion 414a tend to move away from the mounting bracket 412. That is, the design of the elastic pressure block 414 in this embodiment allows the pressure block 414 to adapt to memory modules 102 of different thicknesses, improving the adaptability and versatility of the test fixture. At the same time, the second elastic member 413 can provide buffering, which can better protect the memory module 102 compared with the traditional rigid pressing.

[0049] The form and number of the second elastic element 413 can be varied. For example, please refer to... Figure 8 In this embodiment, the second elastic element 413 can be a compression spring, and multiple second elastic elements 413 are provided, spaced apart on the pressure block 414. The pressure block 414 may have a third blind hole 418, and the mounting bracket 412 may have a fourth blind hole (not shown in the drawings). One end of the second elastic element 413 is inserted into the third blind hole 418, and the other end of the second elastic element 413 is inserted into the fourth blind hole. This facilitates the assembly of the second elastic element 413, and the structure is simple and easy to implement.

[0050] Please see Figure 6 and Figure 8Optionally, in some embodiments, the limiting bracket 410 further includes a mounting shaft 415 through which the pressure block 414 passes. The mounting bracket 412 has an elongated hole 416, the long axis of which extends along the pressing direction. The limiting member also includes a mounting shaft 415 disposed on the mounting bracket 412, which is adapted to be inserted into the elongated hole 416. The mounting shaft 415 is fixedly disposed on the mounting bracket 412. When the pressure block 414 extends or retracts relative to the mounting bracket 412, the mounting shaft 415 slides against the edge of the elongated hole 416. At this time, the mounting shaft 415 plays a guiding and positioning role, making the extension and retraction of the pressure block 414 smoother and more stable.

[0051] Please see Figure 9 This utility model also proposes a memory module testing device, which includes a housing 104 and a memory module testing fixture 101. The specific structure of the memory module testing fixture 101 is as described in the above embodiments. Since this memory module testing device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0052] The housing 104 includes a storage cavity (not shown in the attached drawings) and a window 106 communicating with the storage cavity. The memory module testing fixture and the motherboard are at least partially housed within the storage cavity, while at least the positioning space 210 and the limiting member 400 of the memory module testing fixture are exposed through the window 106. Thus, the housing 104 effectively protects the motherboard, and the window 106 facilitates the operation and installation / removal of the memory module 102.

[0053] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A memory module testing fixture for use in memory module testing equipment, characterized in that, The memory module test fixture includes: The mounting base is provided with a positioning space for accommodating a memory module. The periphery of the positioning space is provided with a positioning surface, and the memory module slides and abuts against the positioning surface when it is installed into the positioning space. A connector, installed within the positioning space, for electrical connection with the memory module; and A limiting element is movably mounted on the mounting base and is used to confine the memory module within the positioning space.

2. The memory module testing fixture as described in claim 1, characterized in that, The positioning space includes a positioning groove and a positioning through hole. The positioning through hole is formed on the bottom surface of the positioning groove. The connector is adapted to be embedded in the positioning through hole. The side surface of the positioning groove includes the positioning surface.

3. The memory module testing fixture as described in claim 2, characterized in that, The lower plate of the memory module is supported by the bottom surface of the positioning groove. The bottom surface of the positioning groove is provided with a clearance groove, and there is a gap between the bottom surface of the clearance groove and the lower plate of the memory module. The connector protrudes upward from the bottom surface of the clearance groove and abuts against the lower plate of the memory module.

4. The memory module testing fixture as described in claim 3, characterized in that, The top surface of the connector is provided with a first positioning post, and the memory module is provided with a first positioning hole corresponding to the first positioning post. The first positioning post is adapted to be inserted into the first positioning hole. And / or, the mounting base has two opposite sidewalls with clearance notches, the two ends of the clearance notches respectively penetrate the outer side of the mounting base and the side of the positioning groove, the bottom surface of the clearance notches has clearance grooves, and the bottom surface of the clearance grooves is lower than the bottom surface of the positioning grooves.

5. The memory module testing fixture as described in claim 2, characterized in that, The side of the positioning groove also includes a guide surface, which is connected between the edge of the groove opening and the positioning surface. In the direction away from the positioning surface, the guide surface extends obliquely away from the center of the groove opening.

6. The memory module testing fixture as described in claim 1, characterized in that, The limiting component is detachably mounted on the mounting base and includes a limiting bracket and a limiting buckle. The limiting buckle is rotatably disposed on the limiting bracket and can be fastened to the mounting base.

7. The memory module test fixture as described in claim 6, characterized in that, The limiting buckle includes a first engaging portion, and the outer side of the mounting base is provided with a second engaging portion. The first engaging portion engages with the second engaging portion, and the bottom surface of the first engaging portion is higher than the bottom surface of the mounting base. And / or, the limiting member further includes a first elastic member connected between the limiting buckle and the limiting bracket, and causing the limiting buckle to have a tendency to rotate toward the fastening position; And / or, the mounting base is further provided with a plurality of second positioning posts, which are spaced apart around the periphery of the limiting member and abut against the outer surface of the limiting member; And / or, the side of the limiting bracket is provided with an installation notch for receiving the limiting buckle, the limiting bracket also includes an installation part and an operating part, the installation part is connected between the operating part and the first snap-fit ​​part, the installation part is rotatably connected to the side wall of the installation notch, and the operating part is exposed outside the installation notch.

8. The memory module testing fixture as described in claim 6, characterized in that, The limiting bracket includes a mounting bracket, a second elastic element, and a pressure block. The pressure block is movably mounted on the mounting bracket along the pressing direction. The pressure block has a pressing portion that protrudes from the bottom surface of the mounting bracket. The second elastic element connects the pressure block and the mounting bracket and is used to make the pressing portion tend to move away from the mounting bracket.

9. The memory module testing fixture as described in claim 8, characterized in that, The limiting bracket also includes a mounting shaft through which the pressure block passes. The mounting bracket has an elongated hole with its long axis extending along the pressing direction. The mounting shaft is slidably inserted into the elongated hole.

10. A memory module testing device, characterized in that, include: The casing has a storage cavity and a window connecting to the storage cavity; The memory module test fixture as described in any one of claims 1 to 9, wherein the memory module test fixture and the motherboard are at least partially housed within the receiving cavity, and at least the positioning space and limiting elements of the memory module test fixture are exposed through the window.

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