CN219533986U - Intrinsic safety type display screen device - Google Patents

Abstract

The utility model provides an intrinsically safe display screen device which comprises a shell, and a fixing assembly, a display module, a circuit board, a sealing assembly and a connecting assembly which are arranged in the shell; wherein, a first limit part is arranged on the side frame of the shell; the fixing assembly comprises toughened glass, a surrounding frame and a fixing beam, wherein the surrounding frame is matched with the first limiting part to limit the toughened glass on the frame of the shell; the visual end of the display module is clung to the inner side of the toughened glass, the two ends of the fixed beam are used for completely limiting the display module in the shell in a detachable manner, and the circuit board is detachably fixed on the fixed beam; the sealing assembly comprises a rear cover, and the rear cover is detachably fixed on a side frame of the shell opposite to the first limiting part; the connection assembly comprises an aviation plug, and the display module and the circuit board are electrically connected with an external controller through the aviation plug.

Description

Intrinsic safety type display screen device

Technical Field

The utility model relates to the technical field of display screens, in particular to an intrinsic safety type display screen device.

Background

The display screen is a common device for displaying various information such as characters, images and videos, and is widely applied to various industries, and is more common in daily industrial production process. The intrinsically safe display device puts forward strict safety requirements on the used intrinsically safe display screen device under some severe special use environments: dust, vibration, moisture and fog protection, and the like.

In the Chinese application patent with the application number of 201921900104.2, an intrinsic safety type display screen for mines is provided, and comprises a shell, a display screen, a display card, a heat transfer mechanism and a heat dissipation mechanism; a shell: the shell is provided with a wire outlet pipe, and a sealing mechanism is arranged in the wire outlet pipe; and (3) a display screen: the display screens are four and are distributed and installed in the shell, transparent pieces are arranged on the display screens, upper covers are arranged on the transparent pieces, and the upper covers are connected with the shell through studs; display card: the display card is assembled in the shell through the mounting plate; a heat transfer mechanism: the heat transfer mechanism is arranged on the shell and is contacted with the display screen; heat dissipation mechanism: the heat dissipation mechanism is assembled on the shell and is arranged corresponding to the heat transfer mechanism; in the mining intrinsic safety type display screen in the scheme, the display screen circuit is composed of high-brightness LED devices, the display is clear and striking, the power consumption is low, the service life is long, and the protection level of the IP54 shell is achieved. However, the protection level of the display screen in the above solution cannot meet the requirements of some usage scenarios with more severe environments and more severe usage conditions.

In addition, in the chinese application patent of application number 202121077725.2, the same provides a mining intrinsic safety type display screen, this mining intrinsic safety type display screen includes the display screen body, the guard box, backup pad and arc top tight piece, wherein the guard box is located outside the display screen body, be connected with the case lid on the guard box, be connected with the buckle between guard box and the case lid, the guard box is located to the backup pad in, be connected with the fixed block in the backup pad, be connected with the grip block on the fixed block, grip block and display screen body assorted, arc top tight piece is located in the case lid, be connected with top tight spring between arc top tight piece and the case lid, the first spout has all been seted up to the guard box both sides. However, in the above scheme, the purpose is to effectively protect the intrinsically safe display screen during transportation, reduce the occurrence of the situation that electronic elements in the intrinsically safe display screen fall off or are damaged due to jolt during transportation, and the like. However, the protection of the scheme is limited to the transportation process of the display screen, the display screen cannot play a role in protecting the display screen in the actual use process, and the problems of insufficient firmness and insufficient protection level of the display screen still exist.

Disclosure of Invention

The utility model aims to provide an intrinsically safe display screen device which is used for solving the technical problems that the mining display screen in the prior art is large in volume and mass, waterproof and dustproof, and cannot be used in a severe service environment due to crossing, so that the display screen device is small and light in size, high in protection level and good in firmness, and can effectively cope with severe working environments such as large dust, high vibration frequency, high water vapor and the like in mining, and maintain the technical effect of good performance.

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

an intrinsically safe display device comprising: the display device comprises a shell, a fixing assembly, a display module, a circuit board, a sealing assembly and a connecting assembly;

the shell is used for providing support and fixation of the fixing component, the display module, the circuit board and the sealing component which are arranged in the shell, and a first limit part is arranged on a side frame of the shell;

the fixing assembly comprises toughened glass, a surrounding frame and a fixing beam, wherein the surrounding frame is matched with the first limiting part to limit the toughened glass on the frame of the shell;

the visual end of the display module is clung to the inner side of the toughened glass, the two ends of the fixed beam are used for completely limiting the display module in the shell in a detachable manner, and the circuit board is detachably fixed on the fixed beam;

the sealing assembly comprises a rear cover, and the rear cover is detachably fixed on a side frame of the shell opposite to the first limiting part;

the connection assembly comprises an aviation plug, and the display module and the circuit board are electrically connected with an external controller through the aviation plug.

Further, the novel portable electronic device further comprises a bending boss-shaped support, wherein the support is fixed to the top end of the shell, and a plurality of mounting holes are formed in the top end of the boss of the support.

Further, the fixed beam comprises a large vertical beam and a small vertical beam, and the circuit board is fixed on the large vertical beam and the small vertical beam through isolating columns and screws.

Further, the sealing assembly further comprises a flange, wherein the flange is fixed on the inner side of the rear cover and is matched with the rear cover to seal the shell.

Further, the sealing assembly further comprises a sealing ring, and a groove matched with the sealing ring is formed in the inner side face of the rear cover.

Furthermore, the outer edge of the toughened glass is bonded with the frame of the shell by using structural adhesive.

Further, the connecting assembly further comprises a ventilation valve, and the ventilation valve is arranged on the side face of the shell.

Further, the connecting assembly further comprises a waterproof connector, and the waterproof connector and the aviation plug are arranged on the same side face of the shell.

Further, a round hole is formed in one end, close to the rear cover, of the side face of the support boss.

Further, the mounting holes are two groups, and the two groups of mounting holes comprise at least one of round holes and waist-shaped holes.

The beneficial effects are that:

according to the technical scheme, the intrinsic safety type display screen device with higher waterproof and dustproof grades is provided, the display screen has a larger display range due to the structural design of the toughened glass and the shell, and an operator can acquire related parameter information more conveniently; the combined structure of the fixing component and the sealing component ensures that the device shell has good dustproof and waterproof performance and firmness; the more compact structural design in the shell body ensures that the device is not only firm and stable, but also smaller and lighter.

It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent.

The foregoing and other aspects, embodiments, and features of the present teachings will be more fully understood from the following description, taken together with the accompanying drawings. Other additional aspects of the utility model, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the utility model.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of an intrinsic safety type display device according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of another view of an intrinsic safety type display device according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an explosion structure of an intrinsically safe display device according to an embodiment of the present utility model;

fig. 4 is a front view of an intrinsically safe display device in an embodiment of the utility model.

In the drawings, the meanings of the reference numerals are as follows:

the novel air-conditioner comprises a shell 1, a first limiting part 1-1, a fixing component 2, toughened glass 2-1, a surrounding frame 2-2, a fixing beam 2-3, a large vertical beam 2-3-1, a small vertical beam 2-3-2, a display module 3, a circuit board 4, an isolation column 4-1, a screw 4-2, a sealing component 5, a rear cover 5-1, a flange 5-2, a sealing ring 5-3, a connecting component 6, an aviation plug 6-1, an air-permeable valve 6-2, a waterproof connector 6-3, a bracket 7, a mounting hole 7-1 and a round hole 7-2.

Detailed Description

In order to make the purpose and technical solution of the embodiments of the present utility model more clear, the technical solution of the present utility model will be clearly and completely described below in connection with the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The embodiment provides an intrinsic safety type display screen device with higher protection level, and the display screen device has more compact internal structure, more firm whole machine and smaller, more exquisite and lighter weight.

Based on the basic concept described above, the components according to the present embodiment include the housing 1, the display module 3, the circuit board 4 as shown in fig. 1 to 4, the fixing component 2 and the sealing component 5 for fixing and sealing the components in cooperation with the housing 1 as shown in fig. 1, and the connecting component 6 for electrically connecting the components with the external control component in cooperation with the display module 3 and the circuit board 4 as shown in fig. 3 to 4.

The shell 1 is used for providing support and fixation for the fixing component 2, the display module 3, the circuit board 4 and the sealing component 5 which are arranged in the shell, and a first limit part 1-1 is arranged on a side frame of the shell 1;

the fixing assembly 2 comprises toughened glass 2-1, a surrounding frame 2-2 and a fixing beam 2-3, wherein the surrounding frame 2-2 is matched with the first limiting part 1-1 to limit the toughened glass 2-1 on the frame of the shell 1;

the visual end of the display module 3 is tightly attached to the inner side of the toughened glass 2-1, the display module 3 is completely limited in the shell 1 in a detachable manner by two ends of the fixed beam 2-3, and the circuit board 4 is detachably fixed on the fixed beam 2-3;

the sealing assembly 5 comprises a rear cover 5-1, and the rear cover 5-1 is detachably fixed on a side frame of the shell 1 opposite to the first limiting part 1-1;

the connection assembly 6 comprises an aviation plug 6-1, and the display module 3 and the circuit board 4 are electrically connected with an external controller through the aviation plug 6-1.

Through the structure, the intrinsic safety type display screen device in the embodiment has good overall sealing performance and good waterproof and dustproof effects, and can meet special use requirements for the display screen device in some severe and complex operating environments. The front end of the shell 1 is sealed through the toughened glass 2-1 and the surrounding frame 2-2, and the rear end of the shell 1 is sealed through the rear cover 5-1. In order to ensure that the toughened glass 2-1 is firmer and more stable in the use process, the surrounding frame 2-2 with the limiting function can be welded inside the shell 1, so that the situation that parts in the device, particularly the toughened glass 2-1, fall down under the condition of jolt in the operation process can be prevented. In addition, in the casing 1, toughened glass 2-1 enclose the frame 2-2, the display module 3, the circuit board 4, fixed beam 2-3 with seal assembly 5 is arranged in proper order and laminating compactly each other, has effectively improved the narrow and small volumetric utilization ratio of casing 1, has further reduced device complete machine volume, organism are more small and exquisite.

As shown in fig. 3, the fixed beam 2-3 includes a large vertical beam 2-3-1 and a small vertical beam 2-3-2, and the circuit board 4 is fixed to the large vertical beam 2-3-1 and the small vertical beam 2-3-2 through a spacer column 4-1 and a screw 4-2. The split design of the fixing beams 2-3 satisfies the fixing condition of the circuit board 4 and simultaneously further lightens the display screen device.

In this embodiment, in order to further improve the waterproof level of the display screen device, the outer edge of the tempered glass 2-1 is bonded with the frame of the housing 1 by using a structural adhesive. The structural adhesive has the advantages of high strength, stripping resistance and the like, can fill up the gap between the toughened glass 2-1 and the front side frame of the shell 1, and avoids the condition that water, dust and other foreign matters enter the display screen device from the gap of the front side of the shell 1 to influence the normal use of the display screen device due to the foreign matters. In order to ensure the waterproof effect, the edge of the toughened glass 2-1 should be coated with structural adhesive with sufficient thickness to completely cover the gap. Compared with the conventional intrinsically safe display screen device which directly places toughened glass into a shell from the front end of the shell and then welds a metal sealing plate at a perspective window in front of the shell so that the processing efficiency is low and the risk of extremely damaging the toughened glass is high, the display screen device in the embodiment is placed into the shell from the rear end of the shell 1, the first limiting part 1-1 and the surrounding frame 2-2 are mutually matched to limit the toughened glass 2-1, and the processing sequence can effectively improve the processing production efficiency and reduce the risk of damaging the toughened glass in the processing process.

Besides the structural adhesive is adopted in the front end of the shell 1 to fill the gap so as to improve the waterproof performance, the rear end of the shell 1 is further sealed to improve the tightness of the whole machine. As shown in fig. 1 and 3, in this embodiment, the sealing assembly 5 further includes a flange 5-2 and a sealing ring 5-3, where the flange 5-2 is fixed on the inner side of the rear cover 5-1 and cooperates with the rear cover 5-1 to seal the housing 1, a groove adapted to the sealing ring 5-3 is provided on the inner side surface of the rear cover 5-1, and the sealing ring 5-3 is provided in the groove. Through the structure, the display screen device in the embodiment realizes front and back water prevention through the fixing component 2 and the sealing component 5 respectively, and can reach the highest dustproof and waterproof grade of the IP68, thereby effectively dealing with a severe operation environment.

As shown in fig. 1 to 4, in this embodiment, the display device further includes a bent boss-shaped bracket 7, the bracket 7 is fixed on the top end of the housing 1, and a plurality of mounting holes 7-1 are formed in the top end of the boss of the bracket 7. The fixing manner of the bracket 7 is not limited. When there is a need for the stand 7 to be detachable, the stand 7 may be fastened directly to the top of the housing 1 by screws. Furthermore, the display screen device can also meet the special installation size requirement on site by replacing the bracket 7, and the application range of the display screen device is effectively improved. In addition, under more severe use conditions, the bracket 7 can also be directly welded on the shell 1, so that the waterproof performance of the display screen device is further improved, and meanwhile, the processing cost is saved.

In view of the convenience of installation, the compatibility and the adaptation degree of the display screen device with other products are improved, a plurality of groups of the installation holes 7-1 can be provided, and at least two different shapes of the installation holes 7-1 are provided. In this embodiment, as shown in fig. 2, the two sets of the mounting holes 7-1 are provided, the two sets of the mounting holes 7-1 are respectively circular and kidney-shaped, and the two kinds of hole patterns can meet deployment and installation in most occasions under cooperation. In some work sites where frequent, large-amplitude vibrations exist, the display screen device should be able to meet the conditions of high-frequency vibrations that still allow normal use. For example, when the display screen equipment is deployed and installed in mining, the display screen device can be fixed on the hydraulic support 7 of the working face by selecting the support 7 matched with the hydraulic support 7 of the working face on the construction site, a display screen is installed on every other hydraulic support 7 of the working face, and the installation direction is parallel to the tunneling surface of the coal mining machine, so that parameters such as current, temperature and the like of equipment connected with the hydraulic support are more visual, and the hydraulic support is more convenient for field personnel to judge whether coal is discharged and control the speed of the coal mining machine.

In this embodiment, as shown in fig. 1, the connection assembly 6 includes a waterproof connector 6-3 in addition to the aviation plug 6-1, which can satisfy different electricity utilization environments, thereby improving compatibility of the device. In order to further reduce the possible influence of the changes of the external environment such as water vapor, dust and temperature on the inside of the display screen device, as shown in fig. 1 and 3, the connection assembly 6 further includes an air ventilation valve 6-2, where the air ventilation valve 6-2 is disposed on the side of the housing 1, and in order to improve the external extension of the device with less utilization rate, the air ventilation valve 6-2 may be disposed on the same side of the housing 1 as the aviation plug 6-1 and the waterproof connector 6-3.

As shown in FIG. 1, the boss side surface of the bracket 7 is close to one end of the rear cover 5-1, and a round hole 7-2 is formed in the boss side surface, so that when the cable bundling device is used, the round hole 7-2 can be used for bundling and fixing the cable, the condition that the cable sags randomly is avoided, the wiring attractiveness of the on-site installation environment is improved, and meanwhile, the potential safety hazard that the cable of the wiring harness is scratched and falls is effectively eliminated.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.

Claims (10)

1. An intrinsically safe display device, comprising: the device comprises a shell (1), a fixing assembly (2), a display module (3), a circuit board (4), a sealing assembly (5) and a connecting assembly (6);

the shell (1) is used for providing support and fixation of the fixing component (2), the display module, the circuit board (4) and the sealing component (5) which are arranged in the shell, and a first limit part (1-1) is arranged on a side frame of the shell (1);

the fixing assembly (2) comprises toughened glass (2-1), a surrounding frame (2-2) and a fixing beam (2-3), wherein the surrounding frame (2-2) is matched with the first limiting part (1-1) to limit the toughened glass (2-1) on the frame of the shell (1);

the visible end of the display module (3) is tightly attached to the inner side of the toughened glass (2-1), the two ends of the fixed beam (2-3) are used for completely limiting the display module (3) in the shell (1) in a detachable mode, and the circuit board (4) is detachably fixed on the fixed beam (2-3);

the sealing assembly (5) comprises a rear cover (5-1), and the rear cover (5-1) is detachably fixed on a side frame of the shell (1) opposite to the first limiting part (1-1);

the connecting assembly (6) comprises an aviation plug (6-1), and the display module (3) and the circuit board (4) are electrically connected with an external controller through the aviation plug (6-1).

2. The apparatus according to claim 1, wherein: the novel portable electronic device is characterized by further comprising a bending boss-shaped support (7), wherein the support (7) is fixed at the top end of the shell (1), and a plurality of mounting holes (7-1) are formed in the top end of the boss of the support (7).

3. The apparatus according to claim 1, wherein: the fixed beam (2-3) comprises a large vertical beam (2-3-1) and a small vertical beam (2-3-2), and the circuit board (4) is fixed on the large vertical beam (2-3-1) and the small vertical beam (2-3-2) through the isolation column (4-1) and the screw (4-2).

4. The apparatus according to claim 1, wherein: the sealing assembly (5) further comprises a flange (5-2), and the flange (5-2) is fixed on the inner side of the rear cover (5-1) and is matched with the rear cover (5-1) to seal the shell (1).

5. The apparatus according to claim 1, wherein: the sealing assembly (5) further comprises a sealing ring (5-3), and a groove matched with the sealing ring (5-3) is formed in the inner side face of the rear cover (5-1).

6. The apparatus according to claim 1, wherein: the outer edge of the toughened glass (2-1) is bonded with the frame of the shell (1) by using structural adhesive.

7. The apparatus according to claim 1, wherein: the connecting assembly (6) further comprises a ventilation valve (6-2), and the ventilation valve (6-2) is arranged on the side face of the shell (1).

8. The apparatus according to claim 1, wherein: the connecting assembly (6) further comprises a waterproof connector (6-3), and the waterproof connector (6-3) and the aviation plug (6-1) are arranged on the same side face of the shell (1).

9. The apparatus according to claim 2, wherein: a round hole (7-2) is formed in one end, close to the rear cover (5-1), of the boss side face of the support (7).

10. The apparatus according to claim 2, wherein: the mounting holes (7-1) are provided with two groups, and the shape of the two groups of mounting holes (7-1) comprises at least one of a round shape and a kidney shape.