CN215187899U - Board card mounting assembly and mainboard structure - Google Patents

Abstract

The utility model relates to a board installation component and mainboard structure relates to server technical field. The board card mounting assembly comprises a connecting column and a pressing ring; a pressing cap is arranged at the first end of the connecting column, and a connecting part is arranged at the second end of the connecting column; the pressing ring is sleeved between the first end and the second end, a pressing space is formed between the pressing ring and the pressing cap, and the pressing space is used for accommodating the edge of the laminated board card; connecting portion can lock the support plate relatively, and the support plate can be located in pressing ring one side of deviating from the pressure cap to the pressure, and the edge of range upon range of integrated circuit board compresses tightly between pressure cap and pressure ring. The utility model provides an integrated circuit board installation component utilizes the space that compresses tightly between clamp ring and the pressure cap, carries out pre-assembly to the range upon range of board card to the locking force through adjusting the relative support plate of spliced pole realizes the installation of the relative support plate of range upon range of board card, and is easy and simple to handle, ensures that range upon range of board card can not take place the position with the spliced pole and interfere, reduces the structural influence to range upon range of board card.

Description

Board card mounting assembly and mainboard structure

Technical Field

The utility model relates to a server technical field especially relates to integrated circuit board installation component and mainboard structure.

Background

With the diversification of server configuration, the carrier board is required to be compatible with the stacked board cards of different specifications, and because the device density is higher and higher, in order to ensure sufficient structural stability, the stacked board cards need to be installed on both the front side and the back side of the carrier board. However, in the current server, the gap between the board card and the board card is often smaller due to the fact that the space in the whole thickness direction of the structure is tense, so that interference between the part for mounting the laminated board card on the carrier board and the laminated board card is caused, and normal use is affected.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a board mounting assembly for solving the technical problems of inconvenience in mounting and easiness in interference of stacked boards in the prior art.

A board mounting assembly comprises a connecting column and a pressing ring;

a pressing cap is arranged at the first end of the connecting column, and a connecting part is arranged at the second end of the connecting column; the pressing ring is sleeved between the first end and the second end, a pressing space is formed between the pressing ring and the pressing cap, and the pressing space is used for accommodating the edge of the laminated board card;

the connecting portion can be locked relative to the carrier plate, one side, deviating from the pressing cap, of the pressing ring can be pressed on the carrier plate, and the edge of the stacked board card is pressed between the pressing cap and the pressing ring.

In one embodiment, the pressing ring is provided with a sleeve hole for sleeving the connecting column, and one side of the sleeve hole, which is far away from the pressing cap, is provided with a deformation space.

Through such setting, can provide the deformation space for the deformation of clamp ring when locking between spliced pole and carrier plate to the clamp ring can compress tightly in the carrier plate under the locking force. And utilize the deformation of clamp ring further to provide the space for the increase of the relative carrier plate locking force of spliced pole to further improve the installation reliability and the stability of range upon range of integrated circuit board relative carrier plate.

In one embodiment, the sleeve hole is arranged in a stepped hole;

the cover is established the hole and is included main aspects and tip, just the main aspects is located the tip deviates from compress tightly the one end of cap, the tip is used for the cover to locate the spliced pole, the deformation space is located in the main aspects.

Through the arrangement of the stepped holes, the clamping ring is convenient to disassemble and assemble relative to the connecting column, the connection reliability is improved, and the clamping ring is convenient to deform in a matching mode in the clamping process.

In one embodiment, the hole wall of the small end can be screwed with the connecting part, and the hole diameter of the large end is larger than that of the connecting part.

The mode that utilizes the screw to connect soon is convenient for the cover of the relative spliced pole of clamping ring to be established, also ensures simultaneously that the relative spliced pole of clamping ring can not drop easily.

In one embodiment, the connecting column comprises a smooth section and a rough section connected to the smooth section, the pressing ring penetrates through the rough section and is sleeved on the smooth section, and the rough section forms the connecting part.

The axial position of the pressing ring relative to the connecting column is convenient to adjust through the arrangement, so that the clamp is suitable for stacked board cards of different specifications, and the connecting column can be reliably connected relative to the carrier plate.

In one embodiment, the board mounting assembly further includes a locking cap, the locking cap is configured to be mounted on the carrier, and the connecting portion passes through the pressing ring and is locked with the locking cap.

The probability of direct contact between the connecting column and the carrier plate is reduced as much as possible through the arrangement of the locking cap, and the carrier plate is protected.

In one embodiment, the locking cap has a locking through hole, the connecting portion is connected to a hole wall of the locking through hole, and the connecting column can move axially in the locking through hole.

The arrangement of the locking through holes facilitates the disassembly and assembly of the connecting column and the locking cap, so that the laminated board card is disassembled and assembled relative to the carrier board.

In one embodiment, the carrier plate is provided with a mounting hole, one end of the locking cap is inserted into the mounting hole, and the other end of the locking cap is pressed on one side of the carrier plate departing from the pressing cap.

The reliability and the stability of the installation of the locking cap relative to the carrier plate are improved by the arrangement, so that the locking cap is better matched with the connecting column to support the laminated board card.

In one embodiment, the board mounting assembly further includes a connector mounted to the carrier board, the connector being configured to connect an end of the stacked boards facing away from the hold-down space.

The connector can be matched with the connecting column and the pressing ring, and the reliability of the laminated board card in installation relative to the carrier plate is improved.

The utility model also provides a mainboard structure can solve above-mentioned at least one technical problem.

A mainboard structure comprises the board card mounting assembly, a carrier plate and stacked board cards;

the laminated board cards are installed on the carrier plate through the board card installation assembly.

The utility model has the advantages that:

the utility model provides a pair of board installation component, including spliced pole and clamping ring, the first end of spliced pole is provided with the pressing cap, and the second end of spliced pole is provided with connecting portion to the spliced pole passes through connecting portion and support plate installation. The spliced pole can be located to the clamp ring cover to be located between first end and the second end, and have between clamp ring and the clamp cap with compress tightly the space, so that the edge of range upon range of integrated circuit board can stretch into to this space that compresses tightly in. When in actual use, when the spliced pole passes through the relative support plate locking of connecting portion, the pressure cap can produce the packing force towards the one side that is close to the clamp ring to the oppression is located the edge of the range upon range of integrated circuit board in the space that compresses tightly. Meanwhile, the stacked board cards can transmit the borne pressure to the pressing ring, so that one side, deviating from the pressing cap, of the pressing ring is pressed on the carrier plate. Along with the increase of locking force between spliced pole and the support plate, the effort that the gland acted on range upon range of integrated circuit board, the effort that range upon range of integrated circuit board acted on the clamping ring and the effort that the clamping ring acted on the support plate all increases gradually to the installation locking of the relative support plate of realization range upon range of integrated circuit board. That is to say, the utility model provides a board card installation component through the locking force of adjusting the relative support plate of spliced pole, thereby can cooperate the clamp ring to realize the installation of the relative support plate of range upon range of board card, and is easy and simple to handle. And just because the setting that compresses tightly the space between clamp ring and the pressure cap to the edge of range upon range of integrated circuit board can stretch into this before the locking and compress tightly in the space, not only improve the installation stability, can ensure moreover that range upon range of integrated circuit board can not take place the position with the spliced pole and interfere, the effect of spliced pole lies in compressing tightly range upon range of integrated circuit board, thereby reduces the two probability of taking place to interfere, reduces the structural influence to range upon range of integrated circuit board.

The utility model provides a pair of mainboard structure, including foretell integrated circuit board installation component, still include support plate and range upon range of integrated circuit board, range upon range of integrated circuit board passes through the relative support plate installation of integrated circuit board installation component to realize above-mentioned at least one technological effect.

Drawings

Fig. 1 is a partial schematic view of a board mounting assembly according to an embodiment of the present invention;

fig. 2 is a first partial schematic view of a motherboard structure provided by the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a second partial schematic view of the main board structure provided by the present invention.

Reference numerals: 10-connecting column; 11-a smooth segment; 12-a coarse section; 20-a compression ring; 21-sleeving a hole; 30-a compression cap; 31-a conditioning aperture; 40-a compaction space; 50-a locking cap; 51-locking through holes; 52-a flange; 60-a connector; 100-a carrier plate; 101-mounting holes; 200-stacking board cards; 211-small end; 212-big end; 2121-deformation space.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 2-4, an embodiment of the present invention provides a motherboard structure, which includes a carrier board 100, a stacked board 200 and a board mounting assembly, wherein the stacked board 200 is mounted on the carrier board 100 through the board mounting assembly, thereby forming a motherboard structure. The mainboard structure is mainly used for being installed in a chassis of a server, is used as a core of a hardware system in the server and is used for transmitting various electronic signals.

Specifically, the number of the stacked board cards 200 is two, the two stacked board cards 200 are respectively installed on two sides of the carrier plate 100 in the thickness direction of the stacked board cards, and each stacked board card 200 is installed on the carrier plate 100 through a corresponding group of board card installation assemblies. Of course, the number of the stacked board cards 200 may also be three, four, and the like, and each stacked board card 200 may be mounted on the carrier board 100 through a corresponding set of board card mounting assemblies, so as to form a motherboard structure.

In the prior art, the stacked board card 200 is fixed relative to the carrier board 100 by means of screws or snaps. When the laminated board card 200 is fixed by using screws, studs are generally welded to the carrier board 100, so that the laminated board card 200 is supported. Of course, when the fastening is performed by using a snap, the bottom of the snap needs to be fixed relative to the carrier 100. However, with the diversification of the server configuration, the carrier board 100 faces the problem that the stacked board cards 200 with different specifications need to be compatible at the same time, so that the distance between two adjacent stacked board cards 200 is small, and at this time, the stacked board cards 200 are more likely to interfere with the screws or the buckles, thereby affecting the performance of the stacked board cards 200.

To this end, as shown in fig. 1 to 4, an embodiment of the present invention provides a board fixing assembly, which can be conveniently detached and installed while satisfying the fixed installation of the stacked board 200 relative to the board 100, and reduce the interference between the stacked board 200 and reduce the performance impact on the stacked board 200.

The board fixing assembly is described in detail below.

As shown in fig. 1 to 4, a board fixing assembly provided in an embodiment of the present invention includes a connecting column 10 and a pressing ring 20; a pressing cap 30 is arranged at the first end of the connecting column 10, and a connecting part is arranged at the second end of the connecting column 10; the clamp ring 20 is sleeved between the first end and the second end, a clamp space 40 is provided between the clamp ring 20 and the clamp cap 30, and the clamp space 40 is used for accommodating the edge of the laminated board card 200. The connecting portion can be locked relative to the carrier plate 100, one side of the pressing ring 20 departing from the pressing cap 30 can be pressed on the carrier plate 100, and the edge of the laminated board card 200 is pressed between the pressing cap 30 and the pressing ring 20.

Specifically, taking the position in the manner shown in fig. 3 as an example, taking the axial direction of the connecting column 10 as the up-down direction, the first end of the connecting column 10 is located above the second end of the connecting column 10, the pressing cap 30 is located above the connecting column 10, the edge of the pressing cap 30 is convexly disposed on the outer side wall of the connecting column 10, and the connecting portion is located below the connecting column 10 so as to be connected to the carrier plate 100. The clamping ring 20 is sleeved on the connecting column 10 from one end of the connecting portion and is located between the connecting portion and the clamping cap 30, and precisely because the clamping ring 20 has a sleeved action relative to the connecting column 10, that is, the clamping ring 20 can move along the axial direction of the connecting column 10. When the pressing ring 20 is sleeved on the connecting column 10, a pressing space 40 is formed between the upper surface of the pressing ring 20 and the lower surface of the pressing cap 30, so that the edge of the laminated board card 200 can be clamped into the pressing space 40, and the board card mounting assembly is assembled relative to the laminated board card 200. In practical use, along with the locking of the connecting column 10 relative to the carrier plate 100 by the connecting part, that is, the connecting column 10 and the carrier plate 100 are gradually close to each other, the pressing cap 30 moves towards one side close to the carrier plate 100, a downward pressing force is applied to the stacked board card 200 to press the stacked board card 200, and the stacked board card 200 can transmit the pressing force to the pressing ring 20, so that the pressing ring 20 is pressed against the carrier plate 100. At the same time, the carrier plate 100 has an upward supporting force on the clamping ring 20, and the clamping ring 20 can transmit the supporting force to the stacked board card 200. Therefore, the edge of the stacked board card 200 located in the pressing space 40 is pressed together by the downward pressing force of the pressing cap 30 and the upward supporting force of the pressing ring 20, and the connecting column 10 is locked with respect to the carrier board 100 by the connecting part, thereby realizing the stable installation of the stacked board card 200 with respect to the carrier board 100. And with the gradually increasing locking force of the connecting column 10 relative to the carrier 100, the acting force between the pressing cap 30 and the stacked board card 200, the acting force between the stacked board card 200 and the pressing ring 20, and the acting force between the pressing ring 20 and the carrier 100 gradually increase, so as to strengthen the installation locking of the stacked board card 200 relative to the carrier 100. When the stacked board card 200 needs to be detached from the carrier 100, the connecting column 10 is only required to be detached from the carrier 100.

That is to say, the board mounting assembly adjusts the locking force of the connecting column 10 relative to the carrier 100 and cooperates with the pressing space 40 between the pressing ring 20 and the pressing cap 30, so as to mount and dismount the stacked board 200 relative to the carrier 100, and the operation is convenient. Moreover, the hold-down space 40 is provided between the hold-down ring 20 and the hold-down cap 30, so that the edge of the stacked board 200 can be inserted into the hold-down space 40 before locking, thereby pre-assembling the board mounting assembly with respect to the stacked board 200, and preparing for further mounting with respect to the carrier board 100, so as to improve the mounting stability. Meanwhile, the accommodation of the laminated board card 200 by the pressing space 40 ensures that the laminated board card 200 cannot easily interfere with the connecting column 10, thereby reducing the influence on the structural performance of the laminated board card 200.

As shown in fig. 1, an adjusting hole 31 is further provided at an end of the pressing cap 30 facing away from the pressing ring 20, so that an operator can insert a tool into the adjusting hole 31 to rotate the connecting column 10, thereby locking and releasing the connecting column 10 relative to the carrier plate 100. Wherein, the adjusting hole 31 adopts a spline hole so as to be convenient for clamping and matching with a corresponding tool.

As shown in fig. 1-4, in some embodiments, the compressing ring 20 has a sleeve hole 21 for being sleeved on the connecting column 10, and a side of the sleeve hole 21 facing away from the compressing cap 30 has a deformation space 2121. Specifically, the reason why the clamping ring 20 can perform the nesting action with respect to the connecting column 10 is that the clamping ring 20 has a sleeve hole 21 extending along the axial direction of the connecting column 10, and the sleeve hole 21 penetrates through the clamping ring 20 along the thickness direction of the clamping ring 20, so that the second end of the connecting column 10 can completely penetrate through the clamping ring 20. A deformation space 2121 is formed on one side of the sleeve hole 21 away from the pressing cap 30, the deformation space 2121 is convenient for the pressing ring 20 to generate a certain amount of deformation in the pressing process, and a space is further provided for increasing the locking force of the connecting column 10 relative to the carrier 100 along with the deformation of the pressing ring 20, so that the locking force of the connecting column 10 relative to the carrier 100 is improved, and the installation reliability and stability of the laminated board card 200 relative to the carrier 100 are further improved.

Wherein, the pressing ring 20 is in whole locking process, and the upper surface extrusion range upon range of integrated circuit board 200 of pressing ring 20, and meanwhile the pressing ring 20 still has the supporting role to range upon range of integrated circuit board 200. The lower surface of the pressing ring 20 presses the carrier 100, and the deformation space 2121 is disposed on one side of the pressing ring 20 close to the carrier 100, so that the supporting effect on the stacked board card 200 can be met, and the deformation requirement of the pressing ring 20 can be met. Also, when the clamp ring 20 is deformed relative to the carrier 100 in a pressing action, a contact area between the clamp ring 20 and the carrier 100 is increased, thereby improving connection reliability.

As shown in fig. 1-4, in some embodiments, the sleeve hole 21 is a stepped hole. The sleeving hole 21 comprises a large end 212 and a small end 211, the large end 212 is located at one end of the small end 211 departing from the compressing cap 30, the small end 211 is used for sleeving the connecting column 10, and the deformation space 2121 is located in the large end 212. That is, the receiving hole 21 is formed as a stepped hole with an increasing diameter from the pressing cap 30 toward the carrier 100, the small end 211 is located at one end toward the pressing cap 30, and the large end 212 is located at one end toward the carrier 100. When the pressing ring 20 is sleeved with respect to the connecting column 10, the connecting column 10 enters from the small end 211 and penetrates out from the large end 212, and the pressing ring 20 is finally matched with the connecting column 10 through the small end 211. The deformation space 2121 is located in the hole of the large end 212, so as to facilitate the proper deformation when the pressing ring 20 is pressed on the carrier 100.

In another embodiment, the sleeve hole 21 is a cylindrical through hole, and the diameter of the sleeve hole is the same at all positions along the axial direction of the hole. At this time, an annular groove may be formed outside the sleeving hole 21 at an end of the pressing ring 20 facing the carrier 100, and the above-mentioned deformation space 2121 is formed by the annular groove, so that the pressing ring 20 is deformed appropriately during the pressing action.

As shown in fig. 1-4, in some embodiments, the hole wall of the small end 211 can be threadably engaged with the connecting portion, and the hole diameter of the large end 212 is larger than the hole diameter of the connecting portion. That is to say, be provided with the internal thread on the pore wall of the tip 211 of the cover establishing hole 21, the corresponding lateral wall that lies in the partial column section of connecting portion on spliced pole 10 is provided with the external screw thread, connects soon through the screw thread of internal thread and external screw thread to be convenient for remove the clamp ring 20 to the middle part towards spliced pole 10 from connecting portion, in order to form with clamp cap 30 and compress tightly space 40. The large diameter of the large end 212 facilitates the disassembly of the compression ring 20 relative to the connecting column 10 and is matched with the threaded screwing of the internal thread and the external thread. Namely: such setting not only is convenient for the dismouting of clamp ring 20 relative spliced pole 10, and after the target position was located to the relative spliced pole 10 cover of clamp ring 20, clamp ring 20 was difficult for relative spliced pole 10 to drop moreover, as long as just can carry out the demolising of clamp ring 20 through the screw thread of the internal thread of tip 211 and external screw thread revolves the connection. Meanwhile, the provision of the large end 212 reduces the contact area between the pressing ring 20 and the connecting column 10, and facilitates the formation of the deformation space 2121 within the large end 212.

As shown in fig. 1-4, in some embodiments, the connecting column 10 includes a smooth section 11 and a rough section 12 connected to the smooth section 11, the pressing ring 20 is sleeved on the smooth section 11 through the rough section 12, and the rough section 12 forms a connection portion. Specifically, the rough section 12 is a portion provided with an external thread, and the smooth section 11 is a portion not provided with an external thread. The pressing ring 20 is screwed with the thread of the rough section 12 by using the small end 211 in the sleeve hole 21, so that the pressing ring 20 is sleeved on the smooth section 11, the pressing ring 20 can move along the axial direction of the connecting column 10 in the smooth section 11, and the size of the pressing space 40 is adjusted so as to be suitable for the laminated board cards 200 with different specifications. At this time, the connecting column 10 is actually in threaded connection with the carrier plate 100 through the rough section 12, and as the connecting column 10 is screwed in thread relative to the carrier plate 100, the distance between the connecting column 10 and the carrier plate 100 gradually decreases, the pressing force of the pressing cap 30 acting on the pressing ring 20 through the stacked board card 200 gradually increases, and the supporting force of the carrier plate 100 acting on the stacked board card 200 through the pressing ring 20 gradually increases, so that the stacked board card 200 is mounted relative to the carrier plate 100. When the connection column 10 needs to be detached, the connection column 10 is unscrewed relative to the carrier plate 100.

In yet another embodiment, the roughened section 12 is provided to substantially increase the roughness of the second end of the connecting stud 10. At this time, the carrier plate 100 is provided with a connection hole for matching with the connection column 10, the rough section 12 can be inserted into the connection hole, and the roughness of the rough section 12 is utilized to compress the hole wall of the connection hole, so as to lock the connection column 10 relative to the carrier plate 100. The aperture of the connecting hole may also be a tapered structure from the pressing cap 30 toward the pressing ring 20, i.e., the aperture gradually decreases from top to bottom, so as to improve the connection reliability of the connecting column 10 relative to the carrier plate 100.

As shown in fig. 1-4, in some embodiments, the board mounting assembly further includes a locking cap 50, the locking cap 50 is configured to be mounted to the carrier 100, and the connecting portion passes through the clamp ring 20 and is locked with the locking cap 50. Specifically, the locking cap 50 can be welded and fixed relative to the carrier plate 100, and the connecting portion on the connecting column 10 can be connected with the locking cap 50 in a locking manner. For example, the connecting column 10 and the locking cap 50 are screwed, inserted or snap-fitted, and the like, as long as the fixing between the connecting column 10 and the locking cap 50 can be achieved. The locking cap 50 is not required to be directly connected to the connecting column 10 and the carrier 100, so that the problem of wear of the carrier 100 due to repeated disassembly is reduced, and the protection of the carrier 100 is improved.

As shown in fig. 1 to 4, in some embodiments, the locking cap 50 has a locking through hole 51, the connecting portion is connected with the wall of the locking through hole 51, and the connecting column 10 can move axially in itself within the locking through hole 51. Specifically, for example, the locking cap 50 is welded to the carrier 100, the locking cap 50 is provided with a locking through hole 51 penetrating along the thickness direction thereof, and the hole wall of the locking through hole 51 is provided with an internal thread, and the connecting portion is an external thread section, so that the connecting portion is matched with the locking cap 50 in a threaded manner. As the connecting column 10 is gradually screwed into the locking cap 50, the distance between the pressing cap 30 and the locking cap 50 is gradually reduced, so that the laminated board card 200 is pressed by the pressing ring 20. The distance between the pressing cap 30 and the locking cap 50 is gradually increased along with the gradual unscrewing of the connecting column 10 relative to the locking cap 50, so that the laminated board card 200 in the pressing space 40 is released.

Of course, the locking of the connecting column 10 and the locking cap 50 can also be achieved by inserting, as long as the two can be conveniently disassembled and reliably connected.

As shown in fig. 1-4, in some embodiments, the carrier plate 100 has a mounting hole 101, one end of the locking cap 50 is inserted into the mounting hole 101, and the other end of the locking cap 50 is pressed against a side of the carrier plate 100 facing away from the pressing cap 30. Specifically, a mounting hole 101 penetrating through the carrier 100 is formed in the thickness direction of the carrier 100, one end of the locking cap 50 is inserted into the mounting hole 101 from the bottom of the carrier 100, and the hole wall of the mounting hole 101 is tightly attached to the outer side wall of the locking cap 50. Meanwhile, the other end of the locking cap 50 extends outward in the radial direction of the locking cap 50 to form a flange 52, and the diameter of the flange 52 is larger than the bore diameter of the mounting hole 101, so that the flange 52 is pressed against the carrier plate 100 toward the end surface of the carrier plate 100. The locking cap 50 is then welded to the carrier 100 in the welding direction to ensure that the locking cap 50 is securely mounted.

As shown in fig. 1-4, in some embodiments, the card mounting assembly further includes a connector 60 mounted to the carrier board 100, the connector 60 being configured to connect an end of the stacked card 200 facing away from the hold-down space 40. Specifically, the side of the stacked board card 200 facing the pressing space 40 is a first side of the stacked board card 200, and the opposite side is a second side of the stacked board card 200. The connector 60 is disposed opposite to the connection post 10, and the connector 60 is mounted on the second side of the stacked board card 200. The connector 60 is fixedly disposed on the carrier 100 and hinged to the stacked board card 200, so that the stacked board card 200 can change its angle with respect to the carrier 100, thereby locking and detaching the connecting column 10 with respect to the carrier 100.

As mentioned above, a plurality of stacked boards 200 are generally disposed on the carrier board 100, for example, the stacked boards 200 are connected to both sides of the carrier board 100 along the thickness direction thereof. When the number of stacked boards 200 is two, the number of connectors 60 is also two, and one of the two connectors 60 is disposed above the carrier board 100, and the other connector is disposed below the carrier board 100. Meanwhile, the number of the mounting holes 101 on the carrier board 100 is two, and a locking cap 50 is disposed in each mounting hole 101, so as to facilitate the threaded connection with the connection post 10 preassembled on the first side of the stacked board card 200. In fact, the stacked board cards 200 often have a quadrilateral structure, and for one stacked board card 200, the number of the mounting holes 101 corresponding to the carrier board 100 is often multiple, so as to improve the connection reliability of the stacked board card 200 with respect to the carrier board 100. The number of mounting holes 101 is distributed in many cases at intervals in the circumferential direction of the stacked boards 200.

The type of the connector 60 is selected according to the stacked board cards 200 of different specifications, and the locking depth between the corresponding connecting column 10 and the locking cap 50 is also adjusted accordingly. However, in any case, the stacked board card 200 may be attached to or detached from the carrier board 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The board mounting assembly is characterized by comprising a connecting column (10) and a pressing ring (20);

a pressing cap (30) is arranged at the first end of the connecting column (10), and a connecting part is arranged at the second end of the connecting column (10); the pressing ring (20) is sleeved between the first end and the second end, a pressing space (40) is formed between the pressing ring (20) and the pressing cap (30), and the pressing space (40) is used for accommodating the edge of the laminated board card (200);

the connecting portion can be locked relative to the carrier plate (100), one side, deviating from the pressing cap (30), of the pressing ring (20) can be pressed on the carrier plate (100), and the edge of the laminated board card (200) is pressed between the pressing cap (30) and the pressing ring (20).

2. The board mounting assembly of claim 1, wherein the retaining ring (20) has a sleeve hole (21) for being sleeved on the connecting post (10), and a deformation space (2121) is formed on a side of the sleeve hole (21) facing away from the retaining cap (30).

3. A board mounting assembly according to claim 2, wherein the sleeve hole (21) is a stepped hole;

the cover is established hole (21) and is included main aspects (212) and tip (211), just main aspects (212) are located tip (211) deviate from the one end that compresses tightly cap (30), tip (211) are used for the cover to locate spliced pole (10), deformation space (2121) are located in main aspects (212).

4. A card mounting assembly as claimed in claim 3, wherein the aperture wall of the small end (211) is threadably engaged with the connecting portion and the aperture of the large end (212) is larger than the aperture of the connecting portion.

5. The board mounting assembly according to claim 1, wherein the connection post (10) includes a smooth section (11) and a rough section (12) connected to the smooth section (11), the clamp ring (20) is sleeved on the smooth section (11) through the rough section (12), and the rough section (12) forms the connection portion.

6. The board mounting assembly of claim 1, further comprising a locking cap (50), the locking cap (50) being adapted to be mounted to the carrier (100), the connection portion being locked to the locking cap (50) through the clamp ring (20).

7. A card mounting assembly according to claim 6, characterized in that the locking cap (50) has a locking through hole (51), the connecting portion is connected with the wall of the locking through hole (51), and the connecting stud (10) is axially movable in itself within the locking through hole (51).

8. The board mounting assembly of claim 6, wherein the carrier (100) has a mounting hole (101), one end of the locking cap (50) is inserted into the mounting hole (101), and the other end of the locking cap (50) is pressed against a side of the carrier (100) facing away from the pressing cap (30).

9. A card mounting assembly according to any of claims 1-8, further comprising a connector (60) mounted to the carrier plate (100), the connector (60) being adapted to connect an end of the stacked cards (200) facing away from the hold-down space (40).

10. A motherboard structure, characterized in that it comprises a board mounting assembly as claimed in any one of claims 1 to 9, further comprising a carrier board (100) and a stack of boards (200);

the laminated board card (200) is mounted on the carrier board (100) through the board card mounting assembly.

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