Display card fixing structure

By combining support components and limiting components, the stability problem of the graphics card fixing structure is solved, and a firm connection of the graphics card in multiple directions is achieved, protecting the motherboard from damage and adapting to the installation needs of graphics cards of different sizes.

CN223664970UActive Publication Date: 2025-12-12HONG FU JIN PRECISION IND (WUHAN) CO LTD
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Patent Information

Application Number
CN202422707410.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-12-12
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

Existing graphics card mounting structures cannot effectively support large or multiple graphics cards, resulting in unstable connections and easy collisions with the motherboard, causing damage. Furthermore, traditional mounting methods lack multi-directional limiting, resulting in insufficient safety.

Method used

The design employs a combination of support components and limiting components. The support component is located on the side of the graphics card closer to the motherboard, while the limiting component is slidably connected to the chassis, limiting the graphics card in multiple directions and ensuring its stable fixation in three directions.

Benefits of technology

It improves the installation strength and reliability of graphics cards, reduces the risk of motherboard damage, enhances the connection stability between the graphics card and the chassis, and adapts to the installation needs of graphics cards of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a graphics card fixing structure. A display card fixing structure is used for fixing a display card on a mainboard of a case and comprises a first limiting assembly. The first limiting assembly comprises a supporting piece and a first limiting piece. Wherein the supporting piece is connected to the case or the mainboard, the supporting piece is located on the side, close to the mainboard, of the display card in the first direction, and the supporting piece is configured to support the display card; in the first direction, the first limiting piece is in sliding connection with the case, and at least part of the first limiting piece abuts against the display card so as to be matched with the supporting piece to clamp the display card between the supporting piece and the first limiting piece. Due to the arrangement of the first limiting assembly, the display card is limited in the first direction, even a display card with a large size or a plurality of display cards can be firmly connected with the case and cannot move freely in the first direction, and connection between the display card and the case is more reliable.
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Description

Technical Field

[0001] This application relates to the field of graphics card mounting, and more particularly to a graphics card mounting structure. Background Technology

[0002] With technological advancements, the requirements for desktop computer configurations are becoming increasingly demanding. As a crucial component of the computer, the size and weight of a single graphics card are increasing, and multiple graphics cards may be used to meet these needs. Therefore, these changes in graphics cards place higher demands on the structural safety of the computer case, requiring new fixing structures to more stably securely hold the graphics card and meet these stringent structural safety requirements. Utility Model Content

[0003] To address the problems in the prior art, this application provides a graphics card fixing structure that offers higher installation strength, greater operability, easier assembly and disassembly, and higher reliability.

[0004] This application provides a graphics card mounting structure for fixing a graphics card to the motherboard of a computer case. The graphics card mounting structure includes:

[0005] The first limiting component includes a support member and a first limiting member;

[0006] The support member is connected to the chassis or the motherboard. Along the first direction, the support member is located on the side of the graphics card closer to the motherboard, and the support member is configured to support the graphics card. Along the first direction, the first limiting member is slidably connected to the chassis, and the first limiting member at least partially abuts against the graphics card to cooperate with the support member to clamp the graphics card between the support member and the first limiting member.

[0007] Understandably, the first limiting component restricts the graphics card in the first direction, ensuring a secure connection even for larger or multiple graphics cards, preventing uncontrolled movement and enhancing the reliability of the connection. Furthermore, when the graphics card is subjected to external impact, the support component supports it, preventing direct collision with the motherboard and potential damage. Simultaneously, the support component distributes the pressure from the graphics card to the motherboard, reducing the risk of motherboard damage.

[0008] In one embodiment, along the first direction, the support member is at least partially located between the motherboard and the graphics card, and when the graphics card is fixed to the motherboard, the support member is configured to restrict the graphics card from moving toward the side closer to the motherboard.

[0009] In one embodiment, along a second direction, the support member at least partially abuts against the graphics card, the support member being configured to restrict displacement of the graphics card in the second direction, which intersects the first direction.

[0010] In one embodiment, the support member has at least two protrusions, and along the second direction, at least two of the protrusions are spaced apart and a receiving groove is formed between any two adjacent protrusions, and the graphics card is at least partially located in the receiving groove.

[0011] Along the second direction, the portion of the graphics card located within the receiving slot abuts against each other with the two adjacent protrusions.

[0012] In one embodiment, the first limiting member includes a fixed part and a sliding part, the sliding part being slidably connected to the fixed part, the fixed part being connected to the chassis, and the sliding part being movably abutting against the side of the graphics card away from the support member along the first direction.

[0013] In one embodiment, the sliding part is provided with a limiting part, and the limiting part and the fixing part are spaced apart along the second direction. The graphics card is at least partially clamped between the limiting part and the fixing part, and the second direction intersects the first direction.

[0014] In one embodiment, the graphics card fixing structure further includes a second limiting component along a third direction, the second limiting component at least partially abutting the graphics card, the second limiting component being configured to limit the displacement of the graphics card in the third direction, the third direction intersecting the first direction, and the third direction intersecting the second direction.

[0015] In one embodiment, the second limiting component includes a second limiting member connected to the chassis and abutting against the graphics card along the third direction.

[0016] In one embodiment, the second limiting member has a connecting groove on the side near the graphics card, the graphics card portion is located in the connecting groove, and the portion of the graphics card located in the connecting groove is connected to the second limiting member;

[0017] Along the first direction, the second limiting member has an opening at one end near the motherboard, the opening is connected to the connection slot, and the opening is configured to allow the graphics card portion to pass through and enter the connection slot.

[0018] In one embodiment, the second limiting component includes a third limiting member connected to the chassis and abutting against the graphics card along the third direction. The third limiting member is configured to restrict the graphics card from moving toward a side away from the second limiting member. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the graphics card fixing structure and the graphics card connection provided in an embodiment of this application.

[0020] Figure 2 This is a side view of a graphics card fixing structure provided in an embodiment of this application when connected to a graphics card or the like.

[0021] Figure 3 This is a bottom view of the graphics card fixing structure and its connection with the graphics card, etc., according to an embodiment of this application.

[0022] Figure 4 This is a perspective view of a support member for a graphics card fixing structure provided in an embodiment of this application.

[0023] Figure 5 This is a cross-sectional view of the connection between the support member of the graphics card fixing structure and the graphics card, according to an embodiment of this application.

[0024] Figure 6 This is a perspective view of the first limiting member of the graphics card fixing structure provided in an embodiment of this application.

[0025] Figure 7 This is a cross-sectional view of the connection between the first limiting member of the graphics card fixing structure provided in an embodiment of this application and the graphics card.

[0026] Figure 8 This is a perspective view of the second limiting member of the graphics card fixing structure provided in an embodiment of this application.

[0027] Figure 9 A perspective view showing the connection between the second limiting member of the graphics card fixing structure provided in an embodiment of this application and the graphics card.

[0028] Explanation of main component symbols

[0029] Graphics card mounting structure 1

[0030] First limiting component 10

[0031] Support component 101

[0032] Protrusion 1011

[0033] Container 1012

[0034] First limiting component 102

[0035] Fixing part 1021

[0036] Sliding part 1022

[0037] Limiting part 10220

[0038] Container 10221

[0039] Second limiting component 11

[0040] Second limiting component 110

[0041] Connecting slot 1101

[0042] Opening 1102

[0043] Third limiting component 111

[0044] Graphics Card 2

[0045] Bracket 21

[0046] Motherboard 3

[0047] Chassis 4

[0048] First direction Z

[0049] Second direction Y

[0050] Third direction X

[0051] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0052] The following description will be given with reference to the accompanying drawings for a more complete description of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the present application. As used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context clearly indicates otherwise. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but without excluding the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless explicitly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant technology and in the content of this application, and should not be interpreted as having an idealized or overly formal meaning.

[0053] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments. It should be noted that components depicted in the drawings are not necessarily shown to scale; and identical or similar components will be designated with the same or similar reference numerals or similar technical terms.

[0054] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0055] like Figures 1 to 3 As shown, this application embodiment provides a graphics card fixing structure 1 for fixing a graphics card 2 to the motherboard 3 of a chassis 4. The graphics card fixing structure 1 includes a first limiting component 10.

[0056] For ease of reading, this application introduces a first direction Z, a second direction Y, and a third direction X to describe the embodiments of this application. The first direction Z, the second direction Y, and the third direction X can be three non-parallel straight lines in space; further, the first direction Z, the second direction Y, and the third direction X can be three mutually perpendicular directions in a three-dimensional coordinate system (a three-dimensional Cartesian coordinate system). In subsequent embodiments, the first direction is described as the Z-axis direction of the three-dimensional coordinate system, the second direction is the Y-axis direction of the three-dimensional coordinate system, and the third direction is the X-axis direction of the three-dimensional coordinate system.

[0057] The first limiting component 10 includes a support member 101 and a first limiting member 102.

[0058] The support member 101 is connected to the chassis 4 or the motherboard 3. Along the first direction Z, the support member 101 is located on the side of the graphics card 2 closer to the motherboard 3, and the support member 101 is configured to support the graphics card 2. Along the first direction Z, the first limiting member 102 is slidably connected to the chassis 4. The first limiting member 102 at least partially abuts against the graphics card 2, so as to cooperate with the support member 101 to clamp the graphics card 2 between the support member 101 and the first limiting member 102.

[0059] In this embodiment, the support member 101 is located between the graphics card 2 and the motherboard 3, providing support for the bottom of the graphics card 2. The first limiting member 102 at least partially abuts against the top of the graphics card 2. The length of the first limiting member 102 along the second direction Y is greater than or equal to the length of the graphics card 2 along the second direction Y. If multiple graphics cards 2 are provided, the length of the first limiting member 102 along the second direction Y should be long enough so that the first limiting member 102 can simultaneously apply force to multiple graphics cards 2 and press them tightly against the motherboard 3, ensuring that the displacement of the graphics card 2 in the first direction Z is restricted as much as possible by the first limiting member 102. The first limiting member 102 can be located in the middle of the graphics card 2, and the support member 101 can be located at the end of the graphics card 2 near the second limiting member 110. Both work together to restrict the displacement of the graphics card 2 in the first direction Z.

[0060] Understandably, the first limiting component 10 limits the graphics card 2 in the first direction Z, ensuring a secure connection between the graphics card 2 and the chassis 4, even for larger graphics cards 2 or multiple graphics cards 2, preventing them from moving freely in the first direction Z. This makes the connection between the graphics card 2 and the chassis 4 more reliable. Furthermore, when the graphics card 2 mounted on the motherboard 3 is subjected to external impact, the support component 101 supports the graphics card 2, preventing it from directly colliding with the motherboard 3 and causing damage. Simultaneously, the support component 101 distributes the pressure from the graphics card 2 on the motherboard 3, reducing the risk of damage to the motherboard 3.

[0061] In one embodiment, along the first direction Z, the support member 101 is at least partially located between the motherboard 3 and the graphics card 2. When the graphics card 2 is fixed to the motherboard 3, the support member 101 is configured to restrict the graphics card 2 from moving toward the side closer to the motherboard 3.

[0062] It should be explained that the support 101 is configured to restrict the graphics card 2 from moving towards the side closer to the motherboard 3, that is, there is a gap between the graphics card 2 and the motherboard 3 and the support 101 ensures that there is always a gap between the graphics card 2 and the motherboard 3.

[0063] Understandably, the support 101 separates the graphics card 2 from the motherboard 3, preventing the motherboard 3 from bearing excessive weight from the graphics card 2 and thus avoiding damage. The motherboard 3 has a PCIe slot, which holds the electrical contacts on the graphics card 2, forming a current loop with the circuitry within the motherboard 3. Traditional graphics card 2 installations typically only fix the graphics card 2 to the motherboard 3 by connecting the electrical contacts to the PCIe slot. This application incorporates the support 101, which supports and limits the movement of the graphics card 2. The graphics card 2 can be simultaneously limited by the PCIe slot and the support 101, thus distributing the impact of the graphics card 2 on the PCIe slot when subjected to external force. This reduces the risk of the PCIe slot cracking and compensates for the lack of structural support between the PCIe slot and the graphics card 2 bracket. It also withstood impacts from the front of the graphics card 2, protecting it from damage.

[0064] In this embodiment, the length of the support member 101 along the second direction Y is greater than or equal to the length of the graphics card 2 along the second direction Y. If there are multiple graphics cards 2, the length of the support member 101 along the second direction Y should be long enough so that the support member 101 can support as many graphics cards 2 as possible at the same time.

[0065] In this embodiment, the support member 101 and the motherboard 3 can be connected by bolts or other connection methods, as long as they can be detachably connected. No further restrictions are imposed here. The graphics card 2 can be placed on top of the support member 101 so that the support member 101 can support the graphics card 2.

[0066] Understandably, the use of bolts to connect the support 101 and the motherboard 3 makes disassembly and assembly convenient, and the connection between the graphics card 2 and the support 101 is also relatively easy, improving the convenience of use.

[0067] In one embodiment, along the second direction Y, the support 101 at least partially abuts against the graphics card 2, and the support 101 is configured to limit the displacement of the graphics card 2 in the second direction Y.

[0068] Understandably, the support 101 abuts against the graphics card 2 in the second direction Y, thereby limiting the displacement of the graphics card 2 in the second direction Y, making the connection between the graphics card 2 and the motherboard 3 or the chassis 4 more secure and reliable.

[0069] In one embodiment, such as Figure 4 and Figure 5As shown, the support member 101 is provided with at least two protrusions 1011. Along the second direction Y, at least two protrusions 1011 are spaced apart, and a receiving groove 1012 is formed between any two adjacent protrusions 1011, and the graphics card 2 is at least partially located in the receiving groove 1012.

[0070] Along the second direction Y, the portion of the graphics card 2 located in the receiving slot 1012 abuts against each other with two adjacent protrusions 1011.

[0071] In this embodiment, along the first direction Z, a protrusion 1011 is provided on the side of the support member 101 near the graphics card 2, and the protrusion 1011 extends from the surface of the support member 101 on the side near the graphics card 2 toward the graphics card 2. Along the second direction Y, the distance between any two adjacent protrusions 1011 is greater than the width of the graphics card 2 in the second direction Y. The graphics card 2 is snapped into the receiving slot 1012, and its displacement in the second direction Y is restricted. Two graphics cards 2 can be provided, and three protrusions 1011 can be provided. In this case, two receiving slots 1012 can be formed to accommodate two graphics cards 2 respectively, ensuring that each graphics card 2 is limited in the second direction Y.

[0072] In other embodiments, a graphics card 2 is provided, two protrusions 1011 are provided, and a receiving groove 1012 is formed, in which the graphics card 2 is received, thereby limiting the graphics card 2 in the second direction Y.

[0073] Understandably, the multiple protrusions 1011 spaced out ensure that each graphics card 2 is stably limited in the second direction Y, thereby ensuring a stable and reliable connection between the graphics card 2 and the chassis 4. This ensures that even with gaps in the installation, the multiple graphics cards 2 are still restricted in their displacement in the second direction Y, preventing them from moving arbitrarily and causing a loose connection.

[0074] In one embodiment, such as Figure 3 , Figure 6 and Figure 7 As shown, the first limiting member 102 includes a fixing part 1021 and a sliding part 1022. The sliding part 1022 is slidably connected to the fixing part 1021, and the fixing part 1021 is connected to the chassis 4. Along the first direction Z, the sliding part 1022 is movably abutted against the side of the graphics card 2 away from the support member 101.

[0075] In this embodiment, a slide rail can be used to achieve a sliding connection between the sliding part 1022 and the fixed part 1021. The connection between the sliding part 1022 and the fixed part 1021 can also be in other ways, as long as the sliding part 1022 and the fixed part 1021 can achieve a sliding connection. No further restrictions are imposed here. During installation, firstly, the fixed part 1021 is connected to the chassis 4 using screws or other connection methods. Then, the bottom end of the sliding part 1022 is brought into contact with the top end of the fixed part 1021, and the sliding part 1022 is slid towards the bottom end of the fixed part 1021 until the sliding part 1022 abuts against the top of the graphics card 2. The sliding part 1022 and the fixed part 1021 are fixed at this position to achieve the limiting of the graphics card 2 by the first limiting member 102.

[0076] Understandably, the split design of the first limiting member 102 makes it easier to install, and also allows for adjustment of the position of the sliding part 1022 according to the size of the graphics card 2, enabling the first limiting member 102 to adapt to graphics cards 2 of different sizes and thus broadening its application. Furthermore, adjusting the position of the sliding part 1022 ensures that the first limiting member 102 abuts against the top of the graphics card 2, thereby limiting the displacement of the graphics card 2 in the first direction Z.

[0077] In one embodiment, the sliding portion 1022 is provided with a limiting portion 10220. Along the first direction Z, the limiting portion 10220 protrudes from the side of the sliding portion 1022 near the graphics card 2. And along the second direction Y, the limiting portion 10220 and the fixing portion 1021 are spaced apart, and the graphics card 2 is at least partially clamped between the limiting portion 10220 and the fixing portion 1021.

[0078] In this embodiment, a limiting part 10220 is provided, which forms a receiving groove 10221 with the fixing part 1021. The graphics card 2 can be accommodated in the receiving groove 10221. At this time, the graphics card 2 abuts against the limiting part 10220 and the fixing part 1021 on both sides along the second direction Y, so that the displacement of the graphics card 2 in the second direction Y is restricted.

[0079] In other embodiments, two limiting portions 10220 are provided along the second direction Y, and the two limiting portions 10220 are spaced apart. At this time, a receiving groove 10221 can also be formed between the two limiting portions 10220, and the graphics card 2 can be accommodated in the receiving groove 10221. At this time, the two sides of the graphics card 2 along the second direction Y abut against the two limiting portions 10220, so that the displacement of the graphics card 2 in the second direction Y is restricted.

[0080] Understandably, the limiting part 10220, with its design, further restricts the movement of the graphics card 2 in the second direction Y, making the connection between the graphics card 2 and the chassis 4 more secure and reliable.

[0081] In one embodiment, such as Figures 1 to 3 As shown, the graphics card fixing structure 1 also includes a second limiting component 11 along the third direction X. The second limiting component 11 at least partially abuts against the graphics card 2 and is configured to limit the displacement of the graphics card 2 in the third direction X.

[0082] Understandably, in the previous settings, the displacement of graphics card 2 in the first direction Z and the second direction Y has been fixed. In the third direction X, the displacement of graphics card 2 is restricted by setting the second limiting component 11. In this way, graphics card 2 is limited in all three directions, ensuring that graphics card 2 is stably connected to chassis 4 with high reliability.

[0083] In one embodiment, the second limiting component 11 includes a second limiting member 110, which is connected to the chassis 4 and extends along the third direction X, and abuts against the graphics card 2.

[0084] It is understandable that graphics card 2 is not directly connected to case 4 in the third direction X. The setting of the second limiting component 110 allows graphics card 2 to be connected to case 4 in the third direction X and restricts the displacement of graphics card 2, thus making the connection between graphics card 2 and case 4 stable.

[0085] In one embodiment, such as Figure 8 and Figure 9 As shown, along the third direction X, the second limiting member 110 has a connecting groove 1101 on the side near the graphics card 2. The graphics card 2 is located in the connecting groove 1101, and the part of the graphics card 2 located in the connecting groove 1101 is connected to the second limiting member 110.

[0086] Along the first direction Z, the second limiting member 110 has an opening 1102 at one end near the motherboard 3. The opening 1102 communicates with the connecting slot 1101 and is configured to allow part of the graphics card 2 to pass through and enter the connecting slot 1101.

[0087] In this embodiment, along the third direction X, one end of the graphics card 2 is provided with a bracket 21, and the aforementioned electrical contact is located at the other end of the graphics card 2 along the third direction X. The second limiting member 110 can be connected to the graphics card 2 through the bracket 21. The shape and size of the connecting groove 1101 of the second limiting member 110 can be set according to the shape of the bracket 21, so that the bracket 21 can be snapped into the connecting groove 1101, thereby connecting the graphics card 2 to the housing. During installation, the graphics card 2 can be installed first, and then the bracket 21 can be inserted through the opening 1102 at the bottom of the second limiting member 110 into the connecting groove 1101 through the top of the bracket 21, and snapped into the connecting groove 1101 to complete the connection between the second limiting member 110 and the graphics card 2. When there are two graphics cards 2, there are two corresponding connecting grooves 1101 and openings 1102. The number of connecting grooves 1101 and openings 1102 varies according to the number of graphics cards 2, as long as each graphics card 2 is limited, no further restrictions are imposed here.

[0088] In one embodiment, such as Figures 1 to 3 As shown, the second limiting component 11 includes a third limiting member 111, which is connected to the chassis 4 and extends along the third direction X. The third limiting member 111 abuts against the graphics card 2 and is configured to restrict the graphics card 2 from moving away from the second limiting member 110.

[0089] In this embodiment, along the third direction X, the end of the graphics card 2 away from the bracket 21 can be connected to the third limiting member 111. When the third limiting member 111 is connected to the chassis 4, the graphics card 2 is also connected to the chassis 4, so that the displacement of the graphics card 2 in the third direction X is restricted.

[0090] Understandably, the third limiting member 111 restricts the graphics card 2 from moving away from the second limiting member 110. Its cooperation with the second limiting member 110 allows the second limiting member 110 and the third limiting member 111 to limit the displacement of the graphics card 2 as much as possible in the third direction X, ensuring that it does not move arbitrarily and that the connection is reliable.

[0091] When installing the graphics card mounting structure 1, first connect the support 101 to the motherboard 3, and then install the graphics card 2 onto the support 101. Next, connect the third limiting member 111 to the graphics card 2 and then to the chassis 4. Next, use the opening 1102 at the bottom of the second limiting member 110 to engage with the bracket 21 of the graphics card 2 along the third direction X. After connecting the second limiting member 110 to the graphics card 2, connect the second limiting member 110 to the chassis 4. Finally, connect the fixing part 1021 in the first limiting member 102 to the chassis 4, and then slide the sliding part 1022 to abut against the graphics card 2, restricting the displacement of the graphics card 2 in the first direction Z. Fix the sliding part 1022 and the fixing part 1021 relative to each other, thus completing the installation of the graphics card mounting structure 1.

[0092] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the spirit and scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A graphics card mounting structure for fixing a graphics card to the motherboard of a computer case, characterized in that, The graphics card fixing structure includes: The first limiting component includes a support member and a first limiting member; The support member is connected to the chassis or the motherboard. Along the first direction, the support member is located on the side of the graphics card closer to the motherboard, and the support member is configured to support the graphics card. Along the first direction, the first limiting member is slidably connected to the chassis, and the first limiting member at least partially abuts against the graphics card to cooperate with the support member to clamp the graphics card between the support member and the first limiting member.

2. The graphics card fixing structure as described in claim 1, characterized in that, Along the first direction, the support member is at least partially located between the motherboard and the graphics card, and when the graphics card is fixed to the motherboard, the support member is configured to restrict the graphics card from moving toward the side closer to the motherboard.

3. The graphics card fixing structure as described in claim 1, characterized in that, Along the second direction, the support member at least partially abuts against the graphics card, and the support member is configured to limit the displacement of the graphics card in the second direction, which intersects the first direction.

4. The graphics card fixing structure as described in claim 3, characterized in that, The support member is provided with at least two protrusions, and along the second direction, at least two of the protrusions are spaced apart and a receiving groove is formed between any two adjacent protrusions, and the graphics card is at least partially located in the receiving groove; Along the second direction, the portion of the graphics card located within the receiving slot abuts against each other with the two adjacent protrusions.

5. The graphics card fixing structure as described in claim 1, characterized in that, The first limiting member includes a fixed part and a sliding part. The sliding part is slidably connected to the fixed part. The fixed part is connected to the chassis. Along the first direction, the sliding part is movably abutted against the side of the graphics card away from the support member.

6. The graphics card fixing structure as described in claim 5, characterized in that, The sliding part is provided with a limiting part, and along the second direction, the limiting part and the fixing part are spaced apart. The graphics card is at least partially clamped between the limiting part and the fixing part, and the second direction intersects with the first direction.

7. The graphics card fixing structure as described in claim 3, characterized in that, The graphics card fixing structure further includes a second limiting component along a third direction. The second limiting component at least partially abuts against the graphics card. The second limiting component is configured to limit the displacement of the graphics card in the third direction, which intersects with the first direction and the second direction.

8. The graphics card fixing structure as described in claim 7, characterized in that, The second limiting component includes a second limiting member connected to the chassis and abutting against the graphics card along the third direction.

9. The graphics card fixing structure as described in claim 8, characterized in that, The second limiting member has a connecting groove on the side near the graphics card, the graphics card portion is located in the connecting groove, and the portion of the graphics card located in the connecting groove is connected to the second limiting member; Along the first direction, the second limiting member has an opening at one end near the motherboard, the opening is connected to the connection slot, and the opening is configured to allow the graphics card portion to pass through and enter the connection slot.

10. The graphics card fixing structure as described in claim 7 or 8, characterized in that, The second limiting component includes a third limiting member connected to the chassis and positioned along the third direction. The third limiting member abuts against the graphics card and is configured to restrict the graphics card from moving toward a side away from the second limiting member.