CN217523144U - Shielding structure of display mainboard - Google Patents

Abstract

The utility model discloses a shielding structure of display mainboard, including display shell, shield cover and locate first heat dissipation part and the second heat dissipation part of shield cover both sides, be provided with the mainboard in the shield cover, the shield cover has the first thermovent that holds first heat dissipation part and draw forth the air current, the second heat dissipation part includes the heat conduction part, the shield cover still has the second thermovent that holds the indirect contact of heat conduction part extension of second heat dissipation part in the shield cover with the heat source; the utility model provides a shielding structure of display mainboard, its purpose collects the shielding and dispels the heat as an organic whole, solves signal interference and heat dissipation problem.

Description

Shielding structure of display mainboard

Technical Field

The application relates to the technical field of displays, in particular to a shielding structure of a display mainboard.

Background

The market is more and more extensive as a terminal display. Finance, market, traffic, energy, finance, communication and other industries are popular. The module is a pure input component, or passive component, for the system, that is, the module receives any signal satisfying the operational timing relationship without the capability of determining yes or no. The wrong signals and data will generate wrong control word commands or display patterns, resulting in wrong display effect.

However, when the display is interfered by electromagnetic signals, the image has obvious fluctuation traces, when the display is interfered by static electricity or peripheral strong points, the screen display image has water ripples, in order to solve the problem of signal interference, the prior art adopts a mode of setting a shielding case, the mainboard is arranged in the shielding case, although the method can solve the problem of signal interference, but because the mainboard is arranged in the shielding case where the air does not circulate, in the running process of the display, not only the LED in the backlight generates heat, the mainboard and the functional board card also generate a large amount of heat, if the heat can not be dissipated in time in the display, the component can be damaged, therefore, a shielding structure with a heat dissipation function is necessary to be provided, so as to solve the problem.

Disclosure of Invention

The utility model discloses mainly to above problem, provided a shielding structure of display mainboard, its purpose collects the shielding and dispels the heat as an organic whole, solves signal interference and heat dissipation problem.

In order to achieve the above object, the utility model provides a shielding structure of display mainboard, include display shell, shield cover and locate the first heat dissipation part and the second heat dissipation part of shield cover both sides, be provided with the mainboard in the shield cover, the shield cover has the first thermovent that holds first heat dissipation part and draw forth the air current, the second heat dissipation part includes the heat-conducting piece, the shield cover still has the second thermovent that holds in the shield cover that the heat-conducting piece of second heat dissipation part stretches into and generate heat source indirect contact.

Furthermore, the shielding cover plate covers the shielding cover.

Further, the shielding case is of a U-shaped structure.

Furthermore, the second heat dissipation part also comprises a heat conduction plate which is in direct contact with the heating source, and the heat conduction plate is provided with a heat conduction groove for mounting the heat conduction part.

Furthermore, an elastic part is arranged in the shielding cover, and the elastic part has an elastic force which pushes the heat conducting plate and enables the heat conducting plate to be in close contact with the heating source.

Furthermore, the elastic part comprises a pressing plate, a spring for pushing the pressing plate and a screw penetrating through the pressing plate and the spring, the screw is in threaded connection with the main plate, and the spring is located between the pressing plate and a nut of the screw.

Furthermore, the second heat dissipation part further comprises heat conduction fins and a heat dissipation fan, the other end of the heat conduction piece is connected with the heat conduction fins, the heat conduction fins are provided with ventilation openings, and the air outlet direction of the heat dissipation fan is opposite to the ventilation openings.

Compared with the prior art, the utility model provides a shielding structure of display mainboard, set up the mainboard in the shield cover, block the signal influence of interfering signal to it, set up first thermovent and second thermovent respectively in the both sides of this shield cover, and set up first heat dissipation part and second heat dissipation part respectively in the both sides of shield cover; the first radiating part leads out the airflow in the shielding case to the first radiating opening, and the second radiating part leads out the heat in the shielding case in a heat conduction mode through the heat conducting part, so that the problems of signal interference and heat dissipation are solved.

Drawings

Fig. 1 is a shielding structure of a display main board disclosed in the present application.

Fig. 2 is a schematic structural view illustrating a connection between a shield and a second heat sink member according to the present disclosure.

Fig. 3 is a schematic structural view of the shield case.

Fig. 4 is a schematic structural view of the connection between the main board and the second heat sink.

FIG. 5 is a schematic structural view of the thermal conductive plate closely attached to the main plate.

Fig. 6 is a schematic structural view of a heat-conducting fin.

Reference numerals shown in the drawings: 1. a display screen housing; 2. a shield case; 3. a first heat dissipating member; 4. a second heat sink member; 5. a main board; 6. a shielding cover plate; 7. a baffle plate; 40. a heat conductive member; 41. a heat conducting plate; 42. an elastic member; 43. a heat conductive fin; 44. a heat radiation fan; 101. an air inlet; 102. an air outlet; 201. a first heat dissipation port; 202. a second heat dissipation port; 401. a heat conducting groove; 420. pressing a plate; 421. a spring; 422. a screw; 430. an air vent.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The shielding structure of the display main board disclosed in the present application will be taken as an example to describe the technical solution of the present disclosure.

According to an example of the present disclosure, as can be seen from the structural diagrams of the shielding structure of the display main board shown in fig. 1 to 6, the shielding structure can comprise a display screen shell 1 forming the appearance of the shielding structure, a part of shielding cover 2 and a part of first heat dissipation part 3 arranged at two sides of the shielding cover 2, a main board 5 is arranged in the shielding cover 2, the shielding cover 2 is approximately in a U-shaped structure, which has a first heat-radiating opening 201 for receiving the first heat-radiating member 3 to lead out the hot air flow in the shield case 2, it can be understood that, all kinds of electronic components arranged on the main board 5 emit a large amount of heat energy when working, the first heat dissipation part 3 is started to make the airflow in the shielding case 2 flow fast, the hot airflow in the shielding case 2 is led out under the action of the first heat dissipation part 3 and is discharged from the air outlet 102, and the external airflow enters the shielding case 2 from the air inlet 101 to realize the fast flow of the airflow.

For further improving the radiating effect, shielding structure is still including the second heat dissipation part 4 that forms its outward appearance, second heat dissipation part 4 is including using copper as the heat-conducting member 40 of material, shield 2 still has the second thermovent 202 that holds heat-conducting member 40 and stretch into in shield 2 with the indirect contact of source that generates heat, the source that generates heat in shield 2 can be display card drive plate, a chip, power strip etc. the heat that the source that generates heat produced is conducted to the outside of shield 2 by heat-conducting member 40, thereby realize the purpose of further reducing the interior high temperature of shield 2.

Preferably, the shielding cover plate 6 covering the shielding case 2 and the wiring baffle 7 arranged at the end part are also included.

Referring to fig. 5, the second heat sink member 4 further includes heat conductive plates 41 directly contacting the heat generating source, and heat conductive grooves 401 for mounting the heat conductive members 40 are formed in the heat conductive plates 41, and as can be seen from fig. 5, a plurality of groups of heat conductive members 40 are mounted on the heat conductive grooves 401, and the heat conductive plates 41 contact the heat generating source to reduce the temperature inside the shield case 2 by heat conduction.

Referring to fig. 5, the shielding case 2 is further provided with an elastic member 42, the elastic member 42 has an elastic force pushing the heat conducting plate 41 to make the heat conducting plate 41 closely contact with the heat source, specifically, the elastic member 42 includes a pressing plate 420, a spring 421 pushing the pressing plate 420, and a screw 422 penetrating the pressing plate 420 and the spring 421, the screw 422 is in threaded connection with the main board 5, the spring 421 is located between nuts of the pressing plate 420 and the screw 422, the heat conducting plate 41 is fixed on the pressing plate 420, and the elastic force of the spring 421 makes the pressing plate 420 drive the heat conducting plate 41 to descend synchronously, so that the heat conducting plate 41 fully contacts with the heat source.

As shown in fig. 4-6, the second heat sink 4 further includes a heat conduction fin 43 and a heat dissipation fan 44, the other end of the heat conduction member 40 is connected to the heat conduction fin 43, the heat conduction fin 43 has a ventilation opening 430, and the air outlet direction of the heat dissipation fan 44 is opposite to the ventilation opening 430; the heat conducted by the heat-conducting member 40 to the heat-conducting fins 43 is discharged from the air outlet 102 by the heat-radiating fan 44.

From a reading of the foregoing detailed description, it will be appreciated by those skilled in the art that the invention can be readily implemented. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the embodiments disclosed, a person skilled in the art can combine different features at will, so as to implement different solutions, and can combine different forms of additional functions to form other solutions. The scope of protection of the application is therefore only limited by the scope of the appended claims.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims (7)

1. The utility model provides a shielding structure of display mainboard, its characterized in that includes display shell, shield cover and locates the first heat dissipation part and the second heat dissipation part of shield cover both sides, be provided with the mainboard in the shield cover, the shield cover has the first thermovent that holds first heat dissipation part and draw forth the air current, second heat dissipation part includes heat conduction piece, the shield cover still has the second thermovent that holds in the shield cover that the heat conduction piece of second heat dissipation part stretches into and generate heat the indirect contact of source.

2. The shielding structure of a display main board according to claim 1, further comprising a shielding cover plate covering the shielding cover.

3. The shielding structure of a display main board according to claim 1, wherein the shielding case is a U-shaped structure.

4. The shielding structure of a display main board according to claim 1, wherein the second heat dissipating member further comprises a heat conducting plate in direct contact with a heat generating source, the heat conducting plate being provided with a heat conducting groove for mounting the heat conducting member.

5. The shielding structure of a display main board according to claim 4, wherein an elastic member is further disposed in the shielding case, and the elastic member has an elastic force urging the heat conductive plate and causing the heat conductive plate to closely contact the heat generating source.

6. The shielding structure of a display main board according to claim 5, wherein the elastic member includes a pressing plate, a spring for pushing the pressing plate, and a screw passing through the pressing plate and the spring, the screw is in threaded connection with the main board, and the spring is located between the pressing plate and a nut of the screw.

7. The shielding structure of a display main board according to claim 5, wherein the second heat dissipating component further comprises a heat conducting fin and a heat dissipating fan, the other end of the heat conducting fin is connected to the heat conducting fin, the heat conducting fin has a ventilation opening, and an air outlet direction of the heat dissipating fan faces the ventilation opening.

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