CN220491554U - Back plate of liquid crystal display screen - Google Patents

Abstract

The utility model relates to the technical field of liquid crystal display screens, in particular to a back plate of a liquid crystal display screen. The utility model provides a liquid crystal display backboard capable of keeping a dust shielding state and high in installation efficiency. The liquid crystal display backboard comprises a mounting rack and a backboard, wherein the backboard is connected to the front portion of the mounting rack, a plurality of air outlets are formed in the backboard, the liquid crystal display backboard further comprises a filtering mechanism, the filtering mechanism comprises a mounting frame, a filter screen and limiting components, the rear portion of the backboard is connected with the mounting frame in a sliding mode, the filter screen is connected in the mounting frame, and the rear side of the lower portion of the backboard is connected with two limiting components which are bilaterally symmetrical. According to the utility model, the back plate is shielded by the filter screen in a dustproof way, so that the heat dissipation of the liquid crystal display screen is prevented from being influenced by excessive dust, and the efficiency of assembling and disassembling the filter screen is faster by matching the mounting frame with the filter screen, and the efficiency of mounting the filter screen and cleaning the filter screen is improved.

Description

Back plate of liquid crystal display screen

Technical Field

The utility model relates to the technical field of liquid crystal display screens, in particular to a back plate of a liquid crystal display screen.

Background

A liquid crystal display is a device for modulating external light by using an electro-optical effect of liquid crystal, and the existing liquid crystal display generally comprises a frame and a back plate, so that the liquid crystal display is commonly used at present. However, as the liquid crystal display operates for a long time, excessive dust is deposited in the back plate of the liquid crystal display, the heat dissipation effect of the liquid crystal display is reduced, and the back plate of the liquid crystal display needs to be cleaned.

The liquid crystal display backboard disclosed in patent publication No. CN218003876U comprises a heat dissipation backboard with a cleaning groove on the installation end surface, and a cleaning mechanism which is arranged in the cleaning groove and used for applying pressurized air to the heat dissipation groove on the heat dissipation backboard, wherein the cleaning mechanism comprises a cleaning block which is arranged on the bottom wall of the cleaning groove and is close to one side of the opening of the cleaning groove, a driving component which is arranged in the cleaning groove and used for driving the cleaning block to move to the heat dissipation groove, and a cleaning component which is arranged on the cleaning block and used for applying pressurized air to the heat dissipation groove; the cleaning component comprises a pressurizing cylinder which is vertically arranged on the upper end face of the cleaning block and is provided with a through groove which is communicated with the pressurizing groove, a sealing block which is arranged in the pressurizing groove, and a lifting piece which is arranged on the cleaning groove and drives the sealing block to move in the pressurizing groove, but the device only carries out periodical ash cleaning treatment on the heat dissipation groove through the cleaning component, dust can still enter the backboard through the heat dissipation groove, and the cleaning component has more parts and low installation efficiency.

Accordingly, a liquid crystal display back panel capable of maintaining a gray-out state and having high mounting efficiency has been developed in view of the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects that the device only carries out the periodical ash removal treatment on the heat dissipation groove through the cleaning component, dust can still enter the backboard through the heat dissipation groove, the cleaning component has more parts and the installation efficiency is low, the utility model provides the backboard of the liquid crystal display screen, which can keep the ash shielding state and has high installation efficiency.

The technical implementation scheme of the utility model is as follows: the liquid crystal display backboard comprises a mounting rack and a backboard, wherein the backboard is connected to the front portion of the mounting rack, a plurality of air outlets are formed in the backboard, the liquid crystal display backboard further comprises a filtering mechanism, the filtering mechanism comprises a mounting frame, a filter screen and limiting components, the rear portion of the backboard is connected with the mounting frame in a sliding mode, the filter screen is connected in the mounting frame, and the rear side of the lower portion of the backboard is connected with two limiting components which are bilaterally symmetrical.

Optionally, the shielding mechanism comprises a guide rod, a baffle and a threaded rod, wherein the guide rod is connected to the rear sides of the left part and the right part of the lower part of the back plate, the baffle is connected to the guide rod in a sliding mode, the threaded rod is connected to the upper part of the baffle through the threaded rod of the back plate, and the threaded rod is connected with the back plate in a rotating mode.

Optionally, two mounting blocks which are symmetrical up and down and are convenient for lifting the backboard are connected to the left and right parts of the backboard.

Optionally, a plurality of flow guiding pieces are connected to the front part of the back plate close to the air outlet.

Optionally, a handle is connected to the upper part of the mounting frame.

Optionally, the spacing subassembly is including blocking piece and spring, and backplate lower part rear side slidingtype is connected with two blocking piece of bilateral symmetry, all is connected with two springs between backplate and the spacing piece.

The utility model has the following advantages: 1. according to the utility model, the back plate is shielded by the filter screen in a dustproof way, so that the heat dissipation of the liquid crystal display screen is prevented from being influenced by excessive dust, and the efficiency of assembling and disassembling the filter screen is faster by matching the mounting frame with the filter screen, and the efficiency of mounting the filter screen and cleaning the filter screen is improved.

2. According to the utility model, the air outlet is shielded by the baffle through the cooperation between the threaded rod and the baffle, so that dust still falls on the filter screen when the liquid crystal display screen is in an idle state for a long time is avoided.

Drawings

Fig. 1 is a schematic perspective view of a first view of the present utility model.

Fig. 2 is a schematic view of a second perspective structure of the present utility model.

Fig. 3 is a schematic view of a partial perspective structure of the present utility model.

Fig. 4 is a schematic perspective view of the filtering mechanism of the present utility model.

Fig. 5 is a schematic perspective view of a shielding mechanism according to the present utility model.

In the above figures: 1: mounting bracket, 2: backboard, 3: air outlet, 4: filter mechanism, 41: mounting frame, 42: filter screen, 43: spacing subassembly, 5: shielding mechanism, 51: guide bar, 52: baffle, 53: a threaded rod.

Detailed Description

Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The utility model provides a LCD backboard, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, including mounting bracket 1 and backplate 2, mounting bracket 1 front portion is connected with backplate 2 that is used for sealing LCD screen rear portion, backplate 2 left and right sides both sides all are connected with two be convenient for mention backplate 2's installation piece, it has 5 to be used for LCD screen radiating air outlet 3 to open on the backplate 2, backplate 2 front portion is close to air outlet 3 position and is connected with 5 water conservancy diversion pieces, still including filtering mechanism 4, filtering mechanism 4 is including installing frame 41, filter screen 42 and spacing subassembly 43, backplate 2 rear portion slidingtype is connected with installing frame 41, installing frame 41 upper portion is connected with the handle, installing frame 41 internal connection has the filter screen 42 that is used for dirt-proof, backplate 2 lower part rear side is connected with two spacing subassemblies 43 that are used for joint spacing filter screen 42, spacing subassembly 43 is including blocking piece and spring, backplate 2 lower part rear side sliding is connected with two blocking pieces of bilateral symmetry, all be connected with two springs between backplate 2 and the spacing piece, the spring is all around on backplate 2.

When installing backplate 2 to the liquid crystal display, can use this device, it is to need the explanation, at first, use 18 bolts to fix mounting bracket 1 at the liquid crystal display rear portion, thereby make backplate 2 by installing at the liquid crystal display rear portion, and then seal the liquid crystal display rear portion, then slide in backplate 2 and put into mounting frame 41, thereby make filter screen 42 shelter from the liquid crystal display rear portion, and then make filter screen 42 carry out dustproof processing to the liquid crystal display rear portion, at this moment mounting frame 41 promotes two spacing subassemblies 43 forward, when mounting frame 41 slides to backplate 2 bottom, mounting frame 41 lower part no longer promotes spacing subassemblies 43, thereby make spacing subassembly 43 joint in mounting frame 41 lower part upside, at this moment mounting frame 41 is in spacing joint state, when the dust is more influencing the liquid crystal display heat dissipation on filter screen 42, thereby make mounting frame 41 lower part slide upwards along the cambered surface of spacing subassembly 43, and then make mounting frame 41 break away from spacing joint state, then carry out the change or place again and get into backplate 2 and carry out dustproof processing, at this moment, thereby make mounting frame 41 detach the filter screen 2 and install filter screen 42 more through spacing subassembly 43, thereby the efficiency can be improved, and filter screen 2 is realized through the filter screen mounting frame 2 is carried out to the filter screen mounting frame 2.

As shown in fig. 1, 2 and 5, the air conditioner further comprises a shielding mechanism 5, the shielding mechanism 5 comprises a guide rod 51, a baffle plate 52 and a threaded rod 53, the rear sides of the left and right parts of the lower part of the back plate 2 are both connected with the guide rod 51 used for sliding guide, the baffle plate 52 used for shielding the air outlet 3 is connected to the guide rod 51 in a sliding mode, the upper part of the baffle plate 52 penetrates through the back plate 2 to be connected with the threaded rod 53 used for assisting the sliding of the baffle plate 52 in a threaded mode, and the threaded rod 53 is connected with the back plate 2 in a rotating mode.

It should be noted that, when the liquid crystal display is in the idle state for a long time, the threaded rod 53 can be rotated, thereby the baffle plate 52 slides downwards along the two guide rods 51, and then the baffle plate 52 shields the 5 air outlets 3, when the liquid crystal display is required to be used, the threaded rod 53 can be reversely rotated, thereby the baffle plate 52 slides upwards along the two guide rods 51, and then the baffle plate 52 does not shield the 5 air outlets 3, at this time, the liquid crystal display can normally dissipate heat, and in sum, the baffle plate 52 shields the air outlets 3 through the cooperation between the threaded rod 53 and the baffle plate 52, so that dust still falls on the filter screen 42 when the liquid crystal display is prevented from being in the idle state for a long time.

While the present utility model has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications can be made therein without departing from the spirit and scope of the utility model as defined in the following claims. Accordingly, the detailed description of the disclosed embodiments is to be taken only by way of illustration and not by way of limitation, and the scope of protection is defined by the content of the claims.

Claims (6)

1. The utility model provides a liquid crystal display backplate, including mounting bracket (1) and backplate (2), mounting bracket (1) front portion is connected with backplate (2), opens on backplate (2) has a plurality of air outlets (3), characterized by: the novel filter comprises a back plate (2), and is characterized by further comprising a filter mechanism (4), wherein the filter mechanism (4) comprises a mounting frame (41), a filter screen (42) and limiting components (43), the rear part of the back plate (2) is connected with the mounting frame (41) in a sliding mode, the filter screen (42) is connected in the mounting frame (41), and the rear side of the lower part of the back plate (2) is connected with two limiting components (43) which are bilaterally symmetrical.

2. The liquid crystal display back panel according to claim 1, wherein: the shielding mechanism (5) comprises a guide rod (51), a baffle plate (52) and a threaded rod (53), wherein the left and right rear sides of the lower part of the back plate (2) are respectively connected with the guide rod (51), the baffle plate (52) is connected onto the guide rod (51) in a sliding mode, the upper part of the baffle plate (52) penetrates through the back plate (2) to be connected with the threaded rod (53) in a threaded mode, and the threaded rod (53) is connected with the back plate (2) in a rotating mode.

3. The liquid crystal display back panel according to claim 1, wherein: the left part and the right part of the backboard (2) are connected with two mounting blocks which are vertically symmetrical and are convenient for lifting the backboard (2).

4. The liquid crystal display back panel according to claim 1, wherein: the front part of the back plate (2) is connected with a plurality of flow guiding pieces near the air outlet (3).

5. The liquid crystal display back panel according to claim 1, wherein: the upper part of the mounting frame (41) is connected with a handle.

6. The liquid crystal display back panel according to claim 1, wherein: the limiting component (43) comprises a blocking piece and springs, wherein two blocking pieces which are bilaterally symmetrical are connected to the rear side of the lower portion of the back plate (2) in a sliding mode, and two springs are connected between the back plate (2) and the limiting pieces.