CN215341812U

CN215341812U - an LCD screen

Info

Publication number: CN215341812U
Application number: CN202121519044.7U
Authority: CN
Inventors: 彭金莉
Original assignee: Wuxi Institute of Technology
Current assignee: Wuxi Vocational and Technical University
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-12-28
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a liquid crystal screen, comprising a liquid crystal screen body, a frame, a back shell and a shell plate; the liquid crystal screen body is mounted in the frame; the back shell is fixed on the back of the frame by welding, and the rear shell is provided with circuit board; a number of heat dissipation holes are arranged on both sides of the rear shell from top to bottom; the top two ends of the rear shell are provided with first connecting grooves vertically downward, and the first connecting grooves pass through the same as the first connecting grooves The first connection slot is plugged with a first filter screen; the shell plate is mounted on the rear shell by screws; the inner side of the shell plate is provided with a number of cooling fans; the outer side of the shell plate is facing The position of the cooling fan is provided with a grill plate; the top of the shell plate is provided with a second connection slot, the second connection slot penetrates through all the grill plates; a second filter screen is inserted into the second connection slot. The liquid crystal screen of the utility model solves the problem of low heat dissipation efficiency of the liquid crystal screen in the prior art, and the filter screen is easy to disassemble and clean.

Description

Liquid crystal screen

Technical Field

The utility model belongs to the technical field of displays, and particularly relates to a liquid crystal display.

Background

In recent years, liquid crystal display screens are widely used in various industries due to the advantages of low power consumption, small size and low radiation, but the liquid crystal display screens can generate heat in the using process, especially outdoor LED display screens, the brightness is required to be very high due to the using environment, and the generated heat is very large when the brightness is more than 4000 CD.

The utility model discloses a chinese utility model patent that bulletin number is CN210516056U discloses an ultra-narrow limit liquid crystal display with heat dissipation type shell, including LCD screen, frame, backshell and coverboard, the LCD screen is installed in the frame, the rear end welding of frame has the backshell, be provided with the circuit board of being connected with the LCD screen in the backshell, the rear end of backshell is provided with the coverboard, the four corners position of coverboard is provided with the screw, the coverboard passes through screw and frame fixed connection, the thermovent has evenly been seted up at the both sides from the top down interval of backshell, the lateral surface of backshell all is provided with the breakwater on the upper portion of every thermovent, radiating fin is all installed to the upper end and the lower extreme of backshell, install two radiator fan on the medial surface of coverboard. It has solved the prior art radiating efficiency low through setting up dirt screen, breakwater, radiating fin, radiator fan, temperature sensor and small-size temperature controller to dustproof and waterproof effect is poor problem. However, the liquid crystal display screen does not disclose how the filter screen on the heat dissipation port is installed, if the filter screen is installed in a non-detachable mode, dust can block the filter screen after long-time use, and therefore the heat dissipation effect is greatly reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, the present invention aims to: the utility model provides a LCD screen has solved the problem that LCD screen radiating efficiency is low among the prior art to the filter screen is dismantled and is washd conveniently.

In order to realize the purpose of the utility model, the utility model provides the following technical scheme:

a liquid crystal screen comprises a liquid crystal screen body, a frame, a rear shell and a shell plate;

the liquid crystal display body is arranged in the frame;

the rear shell is fixed on the back surface of the frame in a welding mode, a circuit board is arranged in the rear shell, and the circuit board is electrically connected with the liquid crystal display body; a plurality of heat dissipation holes are sequentially formed in the two sides of the rear shell from top to bottom;

the two ends of the top of the rear shell are both vertically and downwards provided with first connecting grooves, and the first connecting grooves penetrate through the heat dissipation holes on the same side as the first connecting grooves; a first filter screen is inserted in the first connecting groove;

the shell plate is mounted on the rear shell through screws; a plurality of radiating fans are arranged on the inner side surface of the shell plate; a grid plate is arranged on the outer side surface of the shell plate opposite to the radiating fan; the top of the shell plate is provided with a second connecting groove which penetrates through all the grid plates; and a second filter screen is inserted in the second connecting groove.

Preferably, the front surface of the liquid crystal screen body is pasted with a waterproof film.

Preferably, a slot is formed in the frame around the outline of the frame, a sealing strip is inserted into the slot, and the edge of the waterproof membrane is pressed by the sealing strip.

Preferably, a first frame body is arranged at the edge position of the first filter screen, the first frame body is matched with the first connecting groove, a first cover body is arranged at the top of the first frame body, the first filter screen is inserted into the first connecting groove through the first frame body and is covered by the first cover body, and a first handle is further arranged on the first cover body.

Preferably, first guide grooves are formed in two sides of the first connecting groove, and the first guide grooves penetrate through the upper end and the lower end of the first connecting groove; the two sides of the first frame body are provided with first guide strips matched with the first guide grooves, and the first filter screen is inserted into the first connecting groove through the first guide strips.

Preferably, the rear shell is provided with first water baffles at the upper parts of the heat dissipation holes.

Preferably, a second frame body is arranged at the edge position of the second filter screen, the second frame body is matched with the second connecting groove, a second cover body is arranged at the top of the second frame body, the second filter screen is connected to the second connecting groove in an inserting mode through the second frame body and is covered through the second cover body, and a second handle is further arranged on the second cover body.

Preferably, second guide grooves are formed in two sides of the second connecting groove, and the second guide grooves penetrate through the upper end and the lower end of the second connecting groove; and second guide strips matched with the second guide grooves are arranged on two sides of the second frame body, and the second filter screen is inserted into the second connecting grooves through the second guide strips.

Preferably, a second water baffle is arranged on the outer side surface of the shell plate and positioned at the upper part of the grating disc.

Preferably, the inner side surface of the shell plate is provided with a temperature sensor and a small temperature controller, the output end of the temperature sensor is electrically connected with the input end of the small temperature controller, and the output end of the small temperature controller is electrically connected with the cooling fan.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the filter screens are arranged on the rear shell and the shell plate in an inserting mode, so that the replacement, cleaning and maintenance are convenient, and the heat dissipation efficiency in the rear shell is ensured;

(2) through setting up first breakwater and second breakwater, can prevent effectively that water from entering into the inside of backshell, playing good water-proof effects.

Drawings

In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive efforts.

FIG. 1 is a schematic structural view of a frame without a sealing strip in this embodiment;

FIG. 2 is a schematic structural diagram of a frame in the present embodiment;

FIG. 3 is a schematic structural diagram of the connection between the frame and the rear housing in this embodiment;

fig. 4 is a schematic structural diagram of the first filter screen in this embodiment;

fig. 5 is a schematic structural diagram of a liquid crystal panel in this embodiment;

fig. 6 is a schematic structural diagram of a liquid crystal panel provided with a second water blocking plate in this embodiment.

Detailed Description

The technical solutions in the specific embodiments of the present invention will be clearly and completely described below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

As shown in fig. 1 to 6, a liquid crystal display includes a liquid crystal display body 1, a frame 2, a rear case 5 and a case plate 14;

the liquid crystal display body 1 is arranged in the frame 2; preferably, the front surface of the liquid crystal screen body 1 is pasted with a waterproof film, so that the waterproof effect on the liquid crystal screen body is achieved. Further, as shown in fig. 1 and 2, a slot 3 is arranged on the frame 2 around the outline of the frame 2, a sealing strip 4 is inserted into the slot 3, and the edge of the waterproof film is pressed by the sealing strip 4; so set up, can so that the water proof membrane firmly laminate on the LCD screen body 1, in addition, when needing to be changed the water proof membrane, only need lift sealing strip 4 off, tear the water proof membrane can.

The rear shell 5 is fixed on the back surface of the frame 2 in a welding mode, a circuit board is arranged in the rear shell 5, and the circuit board is electrically connected with the liquid crystal display body 1; two sides of the rear shell 5 are sequentially provided with a plurality of heat dissipation holes 7 from top to bottom; preferably, the rear shell 5 is provided with first water baffles 8 at the upper parts of the heat dissipation holes 7, so as to play a role in retaining water.

As shown in fig. 3, both ends of the top of the rear housing 5 are vertically and downwardly provided with first connecting grooves 6, and the first connecting grooves 6 penetrate through heat dissipation holes 7 on the same side as the first connecting grooves 6; a first filter screen 9 is inserted into the first connecting groove 6. Specifically, as shown in fig. 4, a first frame 10 is disposed at an edge of the first filter screen 9, the first frame 10 is adapted to the first connecting groove 6, a first cover 12 is disposed at a top of the first frame 10, the first filter screen 9 is inserted into the first connecting groove 6 through the first frame 10 and is covered by the first cover 12, and a first handle 13 is further disposed on the first cover 12 for operation convenience. Preferably, in order to accurately insert the first filter screen 9 into the first connecting groove 6, first guide grooves are formed on two sides of the first connecting groove 6, and the first guide grooves penetrate through the upper end and the lower end of the first connecting groove 6; two sides of the first frame body 10 are provided with first guide strips 11 matched with the first guide grooves, and the first filter screen 9 is inserted into the first connecting groove 6 through the first guide strips 11.

As shown in fig. 5, the shell plate 14 is mounted on the rear shell 5 by screws, and covers the rear shell 5; the inner side surface of the shell plate 14 is provided with a plurality of heat dissipation fans, and in this embodiment, the number of the heat dissipation fans is 2. And a grid plate 17 is arranged on the outer side surface of the shell plate 14 at a position opposite to the radiating fan. The top of the shell plate 14 is provided with a second connecting groove which penetrates through all the grating discs 17; and a second filter screen 15 is inserted into the second connecting groove. Specifically, the edge position of the second filter screen 15 is provided with a second frame body, the second frame body is matched with the second connecting groove, a second cover body is arranged at the top of the second frame body, the second filter screen is inserted into the second connecting groove through the second frame body and is covered by the second cover body, and a second handle 16 is further arranged on the second cover body for convenience of operation. Preferably, in order to accurately insert the second filter screen into the second connecting groove, second guide grooves are arranged on two sides of the second connecting groove, and the second guide grooves penetrate through the upper end and the lower end of the second connecting groove; and second guide strips matched with the second guide grooves are arranged on two sides of the second frame body, and the second filter screen 15 is inserted into the second connecting grooves through the second guide strips. Furthermore, a second water baffle 18 is arranged on the outer side surface of the shell plate 14 and positioned at the upper part of the grating disc 17, and the function of retaining water for the grating disc is achieved.

The inventor should note that the structure of the second filter 15 is similar to that of the first filter 9, and therefore is not provided in the drawings.

Further, be equipped with temperature sensor and small-size temperature controller on the inboard side of shell plate 14, temperature sensor's output with small-size temperature controller's input electric connection, small-size temperature controller's output with radiator fan electric connection.

When the temperature sensor is used, the temperature sensor can detect the temperature in the rear shell 5 in real time, and when the temperature does not reach a set numerical value, heat generated by the operation of the circuit board is directly discharged through the heat dissipation holes 7 on the rear shell 5 and the grating disc 17; when the temperature reaches the set value, the temperature sensor sends a signal to the small-sized temperature controller, and the small-sized temperature controller starts the cooling fan to accelerate the heat discharge. After a long time of use, the first filter 9 and the second filter 15 are detached and replaced, and the old first filter 9 and second filter 15 can be reused after being cleaned.

The liquid crystal display provided by the present invention is described in detail above, and the structure and the working principle of the present invention are explained by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of the present invention, which is protected by the new claims.

Claims

1. A liquid crystal screen is characterized by comprising a liquid crystal screen body, a frame, a rear shell and a shell plate;

the liquid crystal display body is arranged in the frame;

2. The liquid crystal screen of claim 1, wherein a waterproof film is attached to the front surface of the liquid crystal screen body.

3. The liquid crystal display screen according to claim 2, wherein the frame is provided with a slot around the outline of the frame, the slot is inserted with a sealing strip, and the edge of the waterproof film is pressed by the sealing strip.

4. The liquid crystal display according to claim 1, wherein a first frame is disposed at an edge of the first filter, the first frame is adapted to the first connecting groove, a first cover is disposed at a top of the first frame, the first filter is inserted into the first connecting groove through the first frame and is covered by the first cover, and a first handle is further disposed on the first cover.

5. The liquid crystal display according to claim 4, wherein first guide grooves are formed on two sides of the first connecting groove, and the first guide grooves penetrate through the upper end and the lower end of the first connecting groove; the two sides of the first frame body are provided with first guide strips matched with the first guide grooves, and the first filter screen is inserted into the first connecting groove through the first guide strips.

6. The LCD screen of claim 5, wherein the rear shell is provided with a first water baffle at the upper part of the heat dissipation holes.

7. The liquid crystal display panel according to claim 1, wherein a second frame is disposed at an edge of the second filter screen, the second frame is adapted to the second connecting groove, a second cover is disposed at a top of the second frame, the second filter screen is inserted into the second connecting groove through the second frame and is covered by the second cover, and a second handle is further disposed on the second cover.

8. The liquid crystal display panel of claim 7, wherein second guide grooves are formed on two sides of the second connecting groove, and the second guide grooves penetrate through the upper end and the lower end of the second connecting groove; and second guide strips matched with the second guide grooves are arranged on two sides of the second frame body, and the second filter screen is inserted into the second connecting grooves through the second guide strips.

9. A liquid crystal display screen according to claim 8, characterized in that a second water baffle is provided on the outer side of the casing plate at the upper part of the grating disk.

10. The liquid crystal display panel according to any one of claims 1 to 9, wherein a temperature sensor and a small temperature controller are disposed on an inner side surface of the casing plate, an output end of the temperature sensor is electrically connected to an input end of the small temperature controller, and an output end of the small temperature controller is electrically connected to the heat dissipation fan.