CN216817319U

CN216817319U - Mainboard fixing structure

Info

Publication number: CN216817319U
Application number: CN202220045657.XU
Authority: CN
Inventors: 罗源
Original assignee: Suzhou Yuankong Electronic Technology Co ltd
Current assignee: Suzhou Yuankong Electronic Technology Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-06-24
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a mainboard fixing structure which comprises a mainboard, an expansion card, a switching bracket and a base. The switching support comprises a switching support body, an upper bending edge and a lower bending edge, the upper bending edge and the lower bending edge are respectively located at two ends of the switching support body in the first direction, and the upper bending edge and the lower bending edge extend in opposite directions. The expansion card is arranged on one side, provided with an upper bending edge, of the switching support body, the mainboard is arranged on one side, provided with a lower bending edge, of the switching support body, and the expansion card and the mainboard are connected with the switching support body to form a board card assembly. The base has the installation cavity, and the integrated circuit board subassembly sets up in this installation cavity, and is fixed in through the limit of bending on and the limit of bending down on the base. This mainboard fixed knot constructs not only can realize the fixed connection of many integrated circuit boards, and the switching support has the different limit of bending on of extending direction and the limit of bending down, the installation of the expansion card of also being convenient for and mainboard, this simple structure, the installation stability is strong.

Description

Mainboard fixing structure

Technical Field

The utility model relates to the technical field of network equipment, in particular to a mainboard fixing structure.

Background

With the continuous development of industrial control, in order to meet numerous requirements and save space, the situation that a plurality of circuit boards are mutually connected frequently occurs. The circuit boards usually include a core main board and an expansion card connected with the main board, so as to realize expansion of system capacity and ensure realization of a plurality of functions of the control system. With the increasing requirement of light weight of the device, the bracket for fixing the motherboard and the expansion card is also continuously developed toward simplification of the structure, so how to ensure the fixing strength and stability of the motherboard and the expansion card by using a simple structure becomes important. The currently common main board fixing structure is that a core main board is suspended by adopting a plurality of longer adapter studs, and then an expansion card is fixed by the adapter studs. However, the fixing mode is complex in assembly and large in number of the switching studs, and in the using process, the switching studs are long, so that the roots of the switching studs are easily damaged due to large moment when the switching studs are under the action of external force, and the stability of fixing the main board is affected.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to: the utility model provides a mainboard fixed knot constructs, its fixed connection that can realize many integrated circuits boards, and simple structure, installation stability is strong.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a main board fixing structure comprising:

a main board;

an expansion card;

the switching support comprises a switching support body, an upper bending edge and a lower bending edge; the upper bending edge and the lower bending edge are respectively positioned at two ends of the switching support body in a first direction, and the upper bending edge and the lower bending edge extend in opposite directions; the expansion card is arranged on one side of the switching support body, which is provided with the upper bending edge, the main board is arranged on one side of the switching support body, which is provided with the lower bending edge, and the expansion card and the main board are both connected with the switching support body to form a board card assembly;

the base has the installation cavity, the integrated circuit board subassembly is located in the installation cavity, and pass through on bend the limit with bend the limit down and be fixed in on the base.

Has the advantages that: the mainboard fixing structure provided by the utility model comprises a mainboard, an expansion card, a switching bracket and a base. Wherein the switching support includes switching support body, the limit of bending on and the limit of bending down are located the both ends of switching support body on the first direction respectively, and the limit of bending on and the limit of bending down extend along opposite direction respectively, utilize the installation of the follow-up expansion card and mainboard of not only being convenient for of this switching support, also make when the expansion card is fixed in one side that the switching support body was equipped with the limit of bending, and the mainboard locates the integrated circuit board subassembly that forms when the switching support body is equipped with one side on the limit of bending down, the limit of bending and the limit of bending down are fixed with the base on the accessible. This mainboard fixed knot constructs simple to operate, simple structure, and stability is strong.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

Fig. 1 is an exploded view of a main board fixing structure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a motherboard fixing structure according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a base according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first view angle of an adaptor bracket according to an embodiment of the present invention;

fig. 5 is a structural diagram of a second view of the adaptor bracket according to the embodiment of the present invention;

fig. 6 is an exploded view of a board card assembly according to an embodiment of the present invention.

In the figure:

1. an expansion card; 11. plug inserting;

2. a main board; 21. a mating socket;

3. a transfer bracket; 31. a switching bracket body; 32. bending edges upwards; 33. bending edges downwards; 34. a fixing hole; 35. the expansion card fixes the stud; 36. a main board fixing stud;

4. a base; 41. a base plate; 411. reinforcing ribs; 42. a side plate; 421. a guide platform; 422. and (7) installing holes.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a mainboard fixing structure which comprises a mainboard 2, an expansion card 1, a switching bracket 3 and a base 4, wherein the components are sequentially fixed according to the sequence shown in figure 1, and can be shown in figure 2 after being assembled. The switching support 3 comprises a switching support body 31, an upper bending edge 32 and a lower bending edge 33, the upper bending edge 32 and the lower bending edge 31 are respectively located at two ends of the switching support body 31 in the first direction, the upper bending edge 32 and the lower bending edge 33 respectively extend in opposite directions, the upper bending edge 32 is arranged on one side face of the switching support body 31, and the lower bending edge 33 is arranged on the other side face of the switching support body 31. The expansion card 1 is disposed on one side of the adapter bracket body 31 where the upper bending edge 32 is disposed, and the main board 2 is disposed on one side of the adapter bracket body 31 where the lower bending edge 33 is disposed. In addition, the main board 2 and the expansion card 1 are both connected with the adapting bracket body 31, so that the adapting bracket 3, the expansion card 1 and the main board 2 can be relatively fixed into a whole to form a board card assembly. The base 4 is provided with an installation cavity, the board card assembly can be arranged in the installation cavity subsequently, and a mainboard fixing structure is formed by fixing the upper bending edge 32 and the lower bending edge 33 relative to the base 4. In this embodiment, the adaptor bracket body 31, the upper bending edge 32 and the lower bending edge 33 are an integrated structure, and the upper bending edge 32 and the lower bending edge 33 are formed by bending two ends of the adaptor bracket 3 in the first direction.

Specifically, the fixing holes 34 have been opened on the upper bending edge 32 and the lower bending edge 33 of the adapting bracket 3, and the mounting hole 422 has been opened on the base 4, and the main board fixing structure further includes a plurality of fasteners, which can sequentially pass through the mounting holes 422 and the fixing holes 34 when fixed, so that the base 4 is connected to the board card assembly. Alternatively, the fixing holes 34 are screw holes, and may be screwed into the fixing holes 34 by passing bolts through the mounting holes 422 from the outside of the base 4. In order to ensure the installation stability, a plurality of fixing holes 34 are arranged on the upper bending edge 32 and the lower bending edge 33.

Further, in order to facilitate the board card assembly to be disposed in the mounting cavity of the base 4, as shown in fig. 3, the base 4 includes a bottom plate 41 and two side plates 42 oppositely disposed on the bottom plate 41 along the first direction, and a guiding platform 421 is disposed on each of the two side plates 42, and the guiding platform 421 serves as a guiding rail. Wherein the first direction is an ab direction shown in fig. 1, the second direction is a cd direction shown in fig. 1, and the first direction and the second direction are perpendicular to each other. During assembly, the board card assembly is placed in parallel with the bottom plate 41, the main plate 2 abuts against the guide platform 421, the board card assembly can be slidably inserted on the base 4, and then the base 4 and the transfer support 3 are relatively fixed by the method. The mounting holes 422 are matched with the fixing holes 34, the fixing holes 34 are arranged on the upper bending edge 32 and the lower bending edge 33, and the mounting holes 422 are arranged on the side plate 42. In this embodiment, the upper bending edge 32 and the lower bending edge 33 form an included angle of 90 degrees with the adapting bracket body 31, and the two side plates 42 are also respectively perpendicular to the bottom plate 41.

Alternatively, as shown in fig. 1 and fig. 3, when the guiding platform 421 extends along the second direction, only one guiding platform 421 may be disposed on a certain side plate 42, that is, the guiding platforms 421 on the side plate 42 are disposed continuously. A plurality of guide platforms 421 may be disposed on the other side plate 42, that is, the guide platforms 421 on the side plate 42 are disposed at intervals, without affecting other components, such as heat dissipation holes, disposed at the intervals between the adjacent guide platforms 421.

Furthermore, in order to facilitate the alignment of the mounting hole 422 and the fixing hole 34, the bottom plate 41 is provided with the reinforcing rib 411, on one hand, the base 4 can be reinforced by the reinforcing rib 411, and the influence on the mounting effect of the inner board card assembly caused by the deformation due to the overlarge stress or the deformation caused by the overlong stress time can be avoided. On the other hand, as can be seen from the above assembling method, the board card assembly is inserted into the base 4 along the second direction, so that the reinforcing ribs 411 are extended along the first direction, the board card assembly can be limited to the preset position, and the installation position does not need to be determined by manpower and material resources during installation, so that the next step of fixing can be performed quickly.

Alternatively, in addition to the aforementioned arrangement of the reinforcing rib 411 at least at a certain position to abut against the board assembly, a plurality of reinforcing ribs 411 may be provided on the bottom plate 41. The reinforcing ribs 411 are symmetrically arranged, so that the bottom plate 41 can be ensured to be uniformly deformed when stressed. As shown in fig. 3, the reinforcing ribs 411 are disposed on the bottom plate 41 at intervals, and only one of the reinforcing ribs 411 needs to be able to limit the relative position of the board card assembly and the base 4 in the second direction.

As shown in fig. 4, the expansion card 1 and the adapting bracket 3 are fixed by a fastener, the adapting bracket body 31 is provided with an expansion card fixing stud 35 at a side close to the expansion card 1, and the expansion card 1 is provided with a through hole adapted to the expansion card fixing stud 35. The plurality of expansion card fixing studs 35 are arranged, when the expansion card fixing studs are installed, the plurality of expansion card fixing studs 35 can be simultaneously arranged in the through holes in a penetrating mode, and then the expansion card fixing studs 35 are connected to the expansion card fixing studs by nuts in a threaded mode, so that the expansion card 1 and the adapter bracket 3 are fixed relatively.

As shown in fig. 5, in accordance with the above, the main board 2 and the adapting bracket 3 are fixed by a fastener, the adapting bracket body 31 is provided with a main board fixing stud 36 on a side close to the main board 2, and the main board 2 is provided with a through hole adapted to the main board fixing stud 36. When the main board 2 is installed, the main board fixing stud 36 can be inserted into the through hole, and then the main board fixing stud 36 is connected to the main board fixing stud by using a nut and a thread, so that the main board 2 and the adapting bracket 3 are relatively fixed. Optionally, the main plate fixing stud 36 is provided in plurality.

In order to avoid the terminal port deviation caused by the main board 2 or the expansion card 1 deviating during the assembling and positioning, the joint support body 31 of the embodiment is further provided with a positioning protrusion. Optionally, one side of the adapter bracket body 31 close to the expansion card 1 is provided with an expansion card positioning protrusion, the expansion card positioning protrusion is arranged towards the expansion card 1, and when the adapter bracket is assembled, the expansion card 1 is sleeved on the expansion card positioning protrusion, so that the expansion card 1 can be arranged in parallel to the adapter bracket body 31. Optionally, one side of the adapting bracket body 31 close to the main board 2 is provided with a main board positioning protrusion, the main board positioning protrusion is arranged towards the main board 2, and when the adapting bracket body is assembled, the main board 2 is sleeved on the main board positioning protrusion, so that the main board 2 can be arranged in parallel to the adapting bracket body 31. In this embodiment, the bending is performed to form the upper bending edge 32 and the lower bending edge 33 in opposite directions, which not only facilitates the positioning of the motherboard 2 and the expansion card 1, but also prevents the adapting bracket 3 from being a U-shaped structure, which makes the motherboard 2 or the expansion card 1 on one side of the U-shaped cavity of the adapting bracket 3 difficult to assemble.

In addition, as shown in fig. 6, the expansion card 1 and the motherboard 2 are respectively disposed at two sides of the adaptor bracket 3, wherein the expansion card 1 is provided with the plug-in connector 11, the motherboard 2 is provided with the plug-in connector 21, and when the expansion card 1 and the motherboard 2 are fixed on the adaptor bracket 3, the plug-in connector 11 is plugged into the plug-in connector 21, so that the motherboard 2 and the expansion card 1 are in signal connection. Alternatively, the mating plug 11 and the mating receptacle 21 are provided with a plurality of sets.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but may be manufactured in various forms, and those skilled in the art will appreciate that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the utility model. It is therefore to be understood that the above described embodiments are illustrative and not restrictive in all respects.

Claims

1. A main board fixing structure, comprising:

a main board;

an expansion card;

2. The main board fixing structure according to claim 1, wherein the base includes a bottom plate and two side plates, the two side plates are oppositely disposed on the bottom plate along the first direction, each of the two side plates is provided with a guide platform extending along a second direction, the guide platforms on the two side plates are used for slidably inserting the board card assembly on the base, and the second direction is perpendicular to the first direction.

3. The main board fixing structure according to claim 2, wherein fixing holes are formed in the upper bending edge and the lower bending edge, mounting holes are formed in the side plates, and the main board fixing structure further comprises fasteners which are used for penetrating through the mounting holes and the fixing holes to connect the base and the board card assembly.

4. The main board fixing structure according to claim 2, wherein a reinforcing rib extending in the first direction is provided on the bottom plate, and the reinforcing rib is configured to limit a position of the board card assembly relative to the base in the second direction.

5. The main board fixing structure according to claim 1, wherein an expansion card fixing stud is provided on a side of the adapter bracket body close to the expansion card, and the expansion card is fixed to the adapter bracket by the expansion card fixing stud.

6. The main board fixing structure according to claim 1, wherein a main board fixing stud is disposed on a side of the adapter bracket body close to the main board, and the main board is fixed to the adapter bracket by the main board fixing stud.

7. The motherboard fixing structure according to claim 1, wherein a positioning protrusion is further provided on the adapting bracket body, the motherboard and the expansion card can be sleeved with the positioning protrusion, and the positioning protrusion is used for enabling the motherboard and the expansion card to be arranged in parallel with the adapting bracket body.

8. The motherboard fixing structure as claimed in claim 1, wherein the expansion card is provided with a mating plug, the motherboard is provided with a mating socket, and the mating plug is plugged with the mating socket to connect the expansion card with the motherboard by signals.

9. The main board fixing structure according to claim 2, wherein the guide stages are provided continuously or at intervals in the second direction.

10. The main plate fixing structure as claimed in claim 4, wherein the reinforcing rib is provided in plurality.