CN219575978U - Image signal generator and sub-board plug-in assembly thereof - Google Patents

Abstract

The utility model discloses an image signal generator and a sub-board plug-in assembly thereof, wherein the sub-board plug-in assembly includes: a sub-board and a chute assembly corresponding to the sub-board one by one; the chute assembly includes: Slot; the chute is used to be arranged at a preset position on the digital backplane of the image signal generator; the sub-board is used to be detachably plugged into a preset position on the digital backplane along the chute socket. In this scheme, the sub-board is designed to be detachably plugged into the plug interface at the preset position on the digital base plate along the chute, so that the sub-board can be installed in the plug-in interface of the digital base plate in a plug-in and pull-out manner, thereby facilitating the sub-board. Board disassembly.

Description

Image signal generator and its sub-board plug-in components

technical field

The utility model relates to the technical field of image signal generators, in particular to the image signal generator and its sub-board plug-in components.

Background technique

In the existing image signal generator, the assembly relationship between the sub-board and the digital backplane is not a plug-in structure, and the sub-board cannot be disassembled, and at the same time, the sub-board cannot be replaced. In this case, customers can choose based on their own needs. An image signal generator with the function of a daughter card, but when the subsequent customer needs to add the function of another daughter card, the customer needs to re-customize other image signal generators, so the cost is relatively high.

Utility model content

In view of this, the utility model provides a sub-board plug-in assembly, through the design of the sub-board for detachable plugging along the chute to the plug interface at the preset position on the digital backplane, the sub-board can be plugged and unplugged It is installed on the plug interface of the digital backplane in a convenient way, which facilitates the disassembly and assembly of the daughter board.

In order to achieve the above object, the utility model provides the following technical solutions:

A sub-board plug-in assembly, applied to an image signal generator, comprising: a sub-board and a chute assembly corresponding to the sub-board;

The chute assembly includes: a chute;

The chute is set at a preset position on the digital backplane of the image signal generator;

The bottom end of the sub-board is detachably plugged into the socket at the preset position on the digital backplane along the chute.

Preferably, the chute is vertically arranged at a preset position on the digital backplane;

The sub-board includes: a PCB board and a mounting board;

The top of the PCB board is connected to the bottom surface of the mounting board;

The bottom end of the PCB board is detachably plugged into the socket at the preset position of the digital backplane along the chute;

At least one installation end of the installation board is installed on the top of the chute when the PCB board is plugged into the socket of the digital backplane.

Preferably, the chute is provided with a guide groove for guiding the PCB along a direction perpendicular to the digital backplane.

Preferably, a matching detachable connection structure is provided between the installation end of the installation plate and the top of the chute.

Preferably, the detachable connection structure includes:

a through hole opened at the mounting end of the mounting plate;

Internally threaded holes opened on the top of the chute and used to align with the through holes;

A screw connecting the through hole and the internally threaded hole.

Preferably, the mounting end of the mounting plate is provided with an internally threaded through hole;

The screw can be installed in the internal threaded through hole and abut against the top of the slide slot, and screwed in continuously with the screw so that the bottom end of the PCB board can be disengaged from the insertion port.

Preferably, the chute is a plastic chute;

A metal filling part is embedded in the top of the plastic chute, and the metal filling part is aligned with the internal thread through hole of the installation end of the installation plate.

Preferably, the number of the sub-boards is multiple, the number of the chute assemblies is the same as the number of the sub-boards and corresponds to a plurality of the sub-boards one-to-one, and a plurality of the chute assemblies are distributed in parallel, And each of the chute assemblies includes a first chute and a second chute;

The first chute and the second chute are respectively fixed to two ends of the socket of the digital backplane along the length direction.

Preferably, it also includes:

at least one reinforcing plate connected to the outer sides of the plurality of first runners located on the same side;

And/or, at least one reinforcing plate connected to the outer sides of the plurality of second runners located on the same side.

Preferably, the reinforcing plate is also fixedly connected to the inner wall of the housing of the image signal generator.

An image signal generator, comprising: a digital backplane and a sub-board assembly, the digital backplane is provided with a plug interface, and the sub-board assembly is the above-mentioned sub-board plug-in assembly;

The plug-in interface is in one-to-one correspondence with the sub-boards in the sub-board plug-in assembly;

The sub-boards of the sub-board plug-in assembly are detachably plugged into corresponding sockets on the digital backplane.

It can be seen from the above-mentioned technical scheme that the sub-board plug-in assembly provided by the utility model can achieve The board is installed on the plug interface of the digital backplane in a plug-in manner, which facilitates the disassembly and assembly of the sub-board; in addition, customers can customize different types of sub-boards based on the needs of different stages, and do not need to purchase the entire image signal generator repeatedly. device, therefore, can reduce customer cost.

The utility model also provides an image signal generator, which has corresponding beneficial effects due to the adoption of the above-mentioned sub-board plug-in assembly. For details, reference may be made to the foregoing description, which will not be repeated here.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the schematic diagram of the installation of the sub-board module provided by the embodiment of the present invention on the digital backplane;

Fig. 2 is the front view of the structure of the image signal generator provided by the embodiment of the utility model;

Fig. 3 is A-A sectional view of Fig. 2;

Fig. 4 is a schematic structural view of the chute provided by the embodiment of the present invention;

Fig. 5 is the structural front view of the chute provided by the embodiment of the present invention;

Fig. 6 is a schematic structural view of a chute provided by another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an image signal generator provided by an embodiment of the present invention;

Fig. 8 is a structural top view of the image signal generator provided by the embodiment of the present invention;

Fig. 9 is a schematic structural diagram of an image signal generator provided by another embodiment of the present invention;

Fig. 10 is a schematic structural diagram of a power supply bracket provided by an embodiment of the present invention.

Among them, 100 is the shell, 200 is the digital backplane, 300 is the core board, 410 is the power bracket, 411 is the fixed board, 412 is the boss, 420 is the power board, 510 is the sub board, 511 is the PCB board, 511.1 is the guide Slot, 512 is the mounting plate, 512.1 is the internal thread through hole, 520 is the chute, 521 is the internal thread hole, 522 is the guide groove, 523 is the first internal thread blind hole, 524 is the second internal thread blind hole, 525 is Positioning protrusions, 530 is the first reinforcing plate, 540 is the second reinforcing plate, 550 is the screw, 560 is the metal filling part.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The sub-board plug-in assembly provided by the embodiment of the present invention is applied to an image signal generator, as shown in FIG. 1 , including: a sub-board 510 and a chute assembly corresponding to the sub-board 510;

The chute assembly includes: a chute 520, the structure of which can be shown in Figure 4 to Figure 6;

The chute 520 is used to be arranged at a preset position on the digital backplane 200 of the image signal generator;

The bottom end of the sub-board 510 is used to be detachably inserted into the socket at a predetermined position on the digital backplane 200 along the sliding slot 520 .

It should be noted that the top of the digital backplane 200 is provided with a socket (not shown in the figure) for cooperating with the sub-board 510 at a preset position, and the chute 520 is located at a preset position on the digital backplane 200, that is, at the One side or both sides of the socket, that is, the sub-board 510 is used to be detachably plugged into the socket at the preset position on the digital backplane 200 along the chute 520. It can be pluggably installed on the plug interface of the digital backplane 200 , so as to facilitate the disassembly and assembly of the sub-board 510 .

In addition, this solution provides a guide chute assembly for the insertion of the sub-board 510 , which can realize the guided insertion of the sub-board 510 , which helps to improve the stability and reliability of the insertion of the sub-board 510 . In addition, the number of chute 520 can be one (i.e. a single chute), and it is used to be arranged on one side of the socket of the digital backplane 200; as shown in FIG. 1 , the number of chute 520 can also be two (i.e. double chute, see the following description for details), and is used to be arranged on both sides of the socket of the digital backplane 200, that is, the bottom end of the sub-board 510 is used for detachable insertion on the digital backplane 200 along the two chute 520 Set the socket at the location.

It can be seen from the above technical solution that the sub-board plug-in assembly provided by the embodiment of the utility model can realize The sub-board is installed on the plug interface of the digital backplane in a plug-in manner, which facilitates the disassembly and assembly of the sub-board; in addition, customers can customize different types of sub-boards based on the needs of different stages, and do not need to purchase the entire image repeatedly. signal generator, therefore, can reduce customer costs.

Specifically, as shown in FIG. 1 , the chute 520 is used to be vertically arranged at a preset position on the digital backplane 200;

The sub-board 510 includes: a PCB board 511 and a mounting board 512;

The top of the PCB board 512 is vertically connected to the bottom surface of the mounting board 512;

The bottom end of the PCB board 512 is used for detachable plugging along the chute 520 to the socket at the preset position of the digital backplane 200;

As shown in FIG. 3 , at least one installation end of the installation board 512 is installed (for example, overlapped) on the top of the sliding groove 520 when the PCB board 511 is plugged into the socket of the digital backplane 200 . This solution is designed in such a way that it is convenient to realize the limited insertion of the sub-board 510 . In addition, the mounting end of the mounting plate 512 is the end of the mounting plate 512 along its length; as shown in FIG. When the board 511 is plugged into the socket of the digital backplane 200 , it is installed (overlapped) on top of the two slide slots 520 in a one-to-one correspondence.

Further, the chute 520 is provided with a guide groove 522 for guiding the PCB board 511 along a direction perpendicular to the digital backplane 200, and its structure can be shown in FIG. 4 to FIG.

Still further, a matching detachable connection structure is provided between the installation end of the installation plate 512 and the top of the sliding groove 520 . That is to say, the installation end of the installation board 512 is detachably connected to the top of the slide slot 520 when the PCB board 511 is plugged into the socket of the digital backplane 200 . This solution is designed in such a way that when the sub-board 510 is plugged into the socket, the connection and fixation between the sub-board 510 and the top of the chute assembly can be realized, so as to achieve the plug-in and locking effect of the sub-board 510 . Of course, when the number of sliding slots 520 is two, a matching detachable connection structure is provided between each mounting end of the mounting plate 512 and the top of the corresponding sliding slots 520 .

It should be noted that customers can purchase a type of sub-board in the initial stage, and the image signal generator is also equipped with a mounting board 512 that blocks the positions of other sub-boards, and does not include the PCB board 511. It can be understood that the mounting board 512 The role of the housing is only to prevent dust from entering the inside of the image signal generator. The mounting plate 512 is fixed on the top of the chute 520 through a detachable connection structure, but the mounting plate 512 is not provided with external and The opening connected to the screen to be tested.

Specifically, the detachable connection structure includes:

A through hole opened at the installation end of the installation plate 512;

Opened on the top of the chute 520 and used to align with the through hole, the structure of the internally threaded hole 521 can be shown in Figure 6;

A screw 550 (as shown in FIG. 1 ) connecting the through hole and the internally threaded hole 521 .

It should be noted that the two mounting ends of the mounting plate 512 are provided with through holes, and the top of each chute 520 is provided with internally threaded holes 521 aligned with the corresponding through holes, so that the PCB board 511 can be plugged For the socket of the digital backplane 200, the through hole and the internal threaded hole 521 are in an up-and-down alignment relationship, and then the through hole and the internal threaded hole 521 are connected by screws 550, so that the two mounting ends of the mounting plate 512 can be connected with the two mounting ends respectively. A detachable connection at the top of a chute 520. That is to say, the detachable connection structure of this solution adopts a screw connection structure, which has the characteristics of simple structure and convenient connection.

In this solution, as shown in Figure 3, the installation end of the installation plate 512 is provided with an internal thread through hole 512.1;

The screw 550 can be installed in the internal thread through hole 512.1 and abut against the top of the slide slot, and as the screw 550 is continuously screwed in, the bottom end of the PCB board 511 can be disengaged from the insertion port.

It should be noted that in this solution, when disassembling the sub-board 510, first remove the screw 550, and then screw the screw 550 into the internal thread through hole 512.1 until it abuts against the top of the chute 520, and as it is continuously screwed in, it can The tail portion of the screw 550 pushes away from the top of the chute 520, so that the PCB board 511 can be detached (pulled out) from the socket. That is to say, this solution adopts the method of screwing and jacking, which can realize the sub-board 510 being pulled out from the socket of the digital backplane 200, and also has the characteristics of simple structure and convenient operation.

Specifically, the chute 520 is a plastic chute;

As shown in FIG. 3 , a metal filling part 560 is embedded in the top of the plastic chute, and the metal filling part 560 is aligned with the internal thread through hole 512 . That is to say, considering the limited strength of the plastic chute, a metal filling part 560 (set with a countersunk head) is built into the top of the plastic chute so that the screw 550 can abut against the metal filling part when screwing in. 560, to ensure the service life of the plastic chute.

Further, as shown in Figure 1, the number of sub-boards 510 is multiple, the number of chute assemblies is the same as the number of sub-boards 510 and corresponds to a plurality of sub-boards 510 one-to-one, and a plurality of chute assemblies are distributed in parallel, of course, The number of sockets at preset positions on the digital backplane 200 is also a plurality of parallel distributions, and corresponds to a plurality of sub-boards 510 one-to-one, and each chute assembly includes a first chute and a second chute, that is, a chute The number of slots 520 is two, and they are respectively the first chute and the second chute;

The first chute and the second chute are respectively fixed to two ends of the socket of the digital backplane 200 along the length direction. As shown in FIG. 3 , the first chute and the second chute are vertically fixed on both sides of the socket of the digital backplane 200 along its length direction one by one, that is to say, the distribution of the first chute and the second chute On both sides of the socket of the digital backplane 200 along its length direction. In this way, the pluggable installation of multiple sub-boards 510 can be realized, thereby greatly facilitating the disassembly and assembly of sub-board components.

Still further, the sub-board plug-in assembly provided by the embodiment of the present utility model also includes:

At least one reinforcing plate connected to the outer sides of the plurality of first slide grooves on the same side; wherein, as shown in FIG. 2 , the reinforcing plate is the first reinforcing plate 530, and the number is one;

And/or, at least one reinforcing plate connected to the outer sides of the plurality of second runners located on the same side. Wherein, as shown in FIG. 1 , the reinforcing plate is the second reinforcing plate 540 , and its number is two distributed in parallel. This solution is designed in such a way that the structural connection strength of the plurality of sliding slots 520 located on the same side can be improved.

In order to further optimize the above technical solution, the reinforcing plate is also fixedly connected to the inner wall of the housing 100 of the image signal generator. Wherein, the reinforcing plate connected to the outer sides of the plurality of first slide grooves located on the same side is also fixedly connected to the inner wall of the housing 100, as shown in FIG. . In this way, it is helpful to improve the overall structural strength of the plurality of first sliding grooves located on the same side. In addition, the reinforcing plate and the chute, and the reinforcing plate and the inner wall of the casing 100 can be screwed, such as countersunk screws, which will not be repeated here.

The embodiment of the utility model also provides an image signal generator, as shown in FIG. 7 , comprising: a digital backplane 200 and a sub-board assembly, the digital backplane 200 is provided with a plug interface, and the sub-board assembly is the sub-board as described above Plug and unplug components;

The plug-in interface is in one-to-one correspondence with the sub-boards in the sub-board plug-in assembly;

The sub-board 510 of the sub-board plug-in assembly is configured to be detachably plugged into a corresponding socket on the digital backplane 200 along the chute 520 . Since this solution adopts the above-mentioned sub-board plug-in assembly, it also has corresponding beneficial effects. For details, reference can be made to the previous description, and details will not be repeated here.

Below in conjunction with specific embodiment this scheme is further introduced:

The utility model provides an image signal generator comprising: a digital bottom board, a sub-board and a chute part; the sub-board is installed on the digital bottom board in a pluggable manner; the sub-board includes a PCB board and a mounting board; the chute part Installed on the digital backplane, and the chute part has a guide groove matching with the PCB board; a disassembly hole is provided on the installation board, and the disassembly hole has an internal thread, that is, the disassembly hole is an internal thread through hole 512.1; position, the removal hole is covered by the end of the chute part.

Both ends of the mounting plate (two mounting ends) are provided with through holes, and the top of the chute part is provided with internal threaded holes. The internal thread connection of the internal threaded hole through the through hole fixes the mounting plate with the chute component when the sub-board is at the insertion position.

A metal filling part is provided at a position corresponding to the dismounting hole on the top of the chute component, and the metal filling part is filled with metal, such as a metal rod.

The chute part is made of plastic material.

A plurality of chutes are provided on the same side of the plurality of sub-boards in one-to-one correspondence.

Reinforcing plates are arranged on multiple chutes located on the same side.

There are multiple sub-boards, and the sub-boards are arranged in parallel.

Furthermore, the image signal generator provided by the utility model includes: an AC-to-DC ACDC power supply module, a power board, a digital backplane, a chute structure, six sub-board structures, a casing (that is, a housing) and a fan.

(1) Power supply bracket, the ACDC power supply is placed on the step (ie boss) of the power supply bracket, and the power supply board is fixed on the fixed plate of the power supply bracket;

(2) A core board is arranged on the digital base plate, and the digital base plate is fixed on the base plate of the shell;

(3) 6 card slots (that is, plug-in interface) are set on the side away from the core board on the digital backplane, and the 6 card slots are arranged in parallel;

(4) There are 6 chute structures installed on the digital backplane, which correspond to the 6 card slots one by one, and each sub-board can be installed on the card slot along the chute structure;

(5) The fan is fixed on the casing, the number of the fans is 3, and ventilation holes are arranged on the two opposite casings, forming an air duct to the surface of the entire digital bottom plate and the surface of the power board.

Each sub-board includes: a mounting board and a PCB board, both of which are fixed;

(1) The two sides of each sub-board are correspondingly provided with chute; the chute is made of plastic material as a whole;

(2) The top of the chute is provided with an internally threaded hole 521, a metal filling hole and a port of the guide groove;

(3) The mounting plate is provided with: a through hole and a card ejection hole (that is, an internal thread through hole 512.1);

(4) The through holes and the internal threaded holes 521 are distributed in alignment, and the sub-board is fixed on the top of the chute by screws 550;

(5) The ejection hole of the board card and the metal filling hole (which is filled with metal parts, such as metal rods) are in alignment distribution. When disassembling the sub-board, remove the screw from the through hole, and screw the screw into the ejection hole of the board card and push it up. On the metal filling part, and continue to screw in to eject the sub-board;

(6) A positioning protrusion 525 is also installed at the bottom of each chute, and a first internally threaded blind hole 523 and a second internally threaded blind hole 524 are arranged at relatively far positions on both sides of the positioning protrusion;

(7) Positioning holes aligned with the positioning protrusions, and first through holes and second through holes corresponding to the two internally threaded blind holes are arranged on the digital base plate;

(8) When installing the chute, insert the positioning protrusion into the positioning hole on the digital base plate, and use two screws to pass through the two through holes on the digital base plate and enter the internal threaded blind hole for fixing;

(9) As shown in Figure 2, a reinforcement plate is installed and fixed on a plurality of chutes on the same side, the reinforcement plate is fixed with a plurality of chutes, and the reinforcement plate is also fixed on the shell through the mounting holes by screws; and, in The casing is provided with limit holes for each chute;

(10) As shown in Figure 1, reinforcement plates are installed on the upper half of the plurality of chutes on the same other side, and reinforcement plates are installed on the lower half.

In addition, the image signal generator provided by the embodiment of the present utility model, as shown in FIG. bottom plate;

The core board 300 is arranged on the digital backplane 200 and is connected with it for communication;

The power module is arranged on the bottom plate of the casing 100 and is electrically connected to the digital bottom plate 200;

The sub-board module is arranged on the digital backplane 200 along a direction perpendicular to the backplane and communicates with it, and is respectively located on two sides of the core board 300 with the power supply module.

That is to say, the sub-board components of this solution are vertically distributed, and are also distributed on both sides of the core board with the power module. This design of this solution helps to increase the height of the image signal generator Its small footprint allows for easy integrated setup.

In this solution, as shown in FIG. 8 , the power supply module and the sub-board modules are distributed in parallel, which can make the structural distribution of the components of the image signal generator more compact and reasonable, thereby helping to make the footprint of the image signal generator smaller.

Specifically, as shown in FIG. 7, the power module includes: a power bracket 410 and a power board 420;

The power supply bracket 410 is vertically arranged on the bottom plate of the casing 100;

As shown in FIG. 7 , the power board 420 is arranged on the side of the power supply bracket 410 close to the digital backplane 200 along a direction perpendicular to the backplane, and is electrically connected to the digital backplane 200;

A place for placing a power supply is provided on the top of the power supply support 410 , and is electrically connected to the power supply board 420 . That is, the power supply is placed on the top of the power support 410 and is electrically connected to the power board 420 . That is to say, the components of the power module are arranged vertically, which helps to make the footprint of the power module smaller.

Further, as shown in FIG. 1, the power supply bracket 410 includes:

The bracket body vertically arranged on the bottom plate of the housing 100; the top of the bracket body is used as a placement position;

The fixed plate 411 is arranged on the side of the bracket body close to the digital backplane 200 along the direction perpendicular to the bottom plate, and its structure can be shown in FIG. 10 ; That is to say, the power supply bracket 410 is provided with a fixing plate 411 for mounting and fixing the power supply board 420 , thereby greatly facilitating the installation and fixing (screw connection) of the power supply board 42 .

Still further, as shown in FIG. 10 , the bracket body is a U-shaped bracket body, which is reversed and vertically arranged on the bottom plate of the housing. The support body of this solution is designed in such a way that it is not only convenient for the fixing plate 411 to be arranged on its side close to the digital backplane 200, but also convenient for the power supply to be placed on its top, and it is also conducive to the heat dissipation inside the image signal generator.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. A sub-board plug-in assembly, which is applied to an image signal generator, is characterized in that it comprises: a sub-board (510) and a chute assembly corresponding to the sub-board (510) one by one; The chute assembly includes: a chute (520); The chute (520) is set at a preset position on the digital backplane (200) of the image signal generator; The bottom end of the sub-board (510) is detachably plugged into the socket at the preset position on the digital backplane (200) along the chute (520). 2. The sub-board plug-in assembly according to claim 1, characterized in that, the chute (520) is vertically arranged at a preset position on the digital backplane (200); The sub-board (510) includes: a PCB board (511) and a mounting board (512); The top of the PCB board (512) is connected to the bottom surface of the mounting board (512); The bottom end of the PCB board (512) is detachably plugged into the socket at the preset position of the digital backplane (200) along the chute (520); At least one installation end of the installation board (512) is installed on the top of the chute (520) when the PCB board (511) is plugged into the socket of the digital backplane (200). 3. The sub-board plug-in assembly according to claim 2, characterized in that, the chute (520) is provided along a direction perpendicular to the digital backplane (200) for guiding the PCB board (511) guide groove (522). 4. The sub-board plug-in assembly according to claim 2, characterized in that, a matching detachable connection is provided between the installation end of the installation board (512) and the top of the chute (520) structure. 5. The sub-board plug-in assembly according to claim 4, wherein the detachable connection structure comprises: a through hole opened at the installation end of the installation plate (512); An internally threaded hole (521) opened on the top of the chute (520) and used to be distributed in alignment with the through hole; A screw (550) connecting the through hole and the internally threaded hole (521). 6. The sub-board plug-in assembly according to claim 5, characterized in that, the installation end of the installation board (512) is provided with an internal thread through hole (512.1); The screw (550) can be installed in the internal thread through hole (512.1) and abut against the top of the chute (520), and continuously screwed in with the screw (550) so that the PCB board The bottom end of (512) can be detached from the socket. 7. The sub-board plug-in assembly according to claim 6, characterized in that, the chute (520) is a plastic chute; A metal filling part (560) is embedded in the top of the plastic chute, and the metal filling part (560) is aligned with the internal thread through hole (512.1) of the installation end of the installation plate (512). 8. The sub-board plug-in assembly according to any one of claims 1-7, characterized in that, the number of the sub-boards (510) is multiple, and the number of the chute assemblies is the same as that of the sub-boards ( 510) have the same number and one-to-one correspondence with a plurality of the sub-boards (510), a plurality of the chute assemblies are distributed in parallel, and each of the chute assemblies includes a first chute and a second chute; The first chute and the second chute are respectively fixed to the two ends of the insertion port of the digital backplane (200) along the length direction. 9. The daughter board plug-in assembly according to claim 8, further comprising: at least one reinforcing plate connected to the outer sides of the plurality of first runners located on the same side; And/or, at least one reinforcing plate connected to the outer sides of the plurality of second runners located on the same side. 10. The sub-board plug-in assembly according to claim 9, characterized in that, the reinforcement board is also fixedly connected to the inner wall of the housing (100) of the image signal generator. 11. An image signal generator, comprising: a digital backplane (200) and a sub-board assembly, characterized in that the digital backplane (200) is provided with a socket, and the sub-board assembly is any one of claims 1-10 Sub-board plug-in components mentioned in item; The plug-in interface is in one-to-one correspondence with the sub-boards (510) in the sub-board plug-in assembly; The sub-board (510) of the sub-board plug-in assembly is detachably plugged into a corresponding plug interface on the digital backplane (200).