CN220526531U - Display device - Google Patents

Abstract

The utility model provides a display device, which comprises a back plate, electronic components and a rear cover; the rear cover comprises a middle rear shell, and left and right rear shells arranged on the left and right sides of the middle rear shell; the middle back shell is attached to the back plate in a turnover mode, so that the protruding structures on the middle back shell cannot interfere with the protruding structures on the back plate and the electronic component. Further, the left and right backshells are detachably connected to the left and right sides of the backboard, and one ends of the left and right backshells, which face the middle backshell, are overlapped and pressed on the left and right edges of the middle backshell so as to press the middle backshell on the back of the backboard. Therefore, the middle rear shell is fixed on the back of the back plate through the pressing of the left rear shell and the right rear shell and the clamping of the positioning clamping groove on the positioning clamping column, so that the use of rear cover screws is reduced or screws are not needed, and the cost is saved. The cooperation of location card post and location draw-in groove is convenient dismantlement and block repeatedly to make things convenient for the multiple assembly and disassembly of back lid on the backplate.

Description

Display device

Technical Field

The utility model relates to the technical field of household appliances, in particular to a display device.

Background

With the development of society, the labor cost is increased year by year, the proportion of the labor cost of the product on the whole production chain is heavier and heavier, and more enterprises attach importance to how to reduce the labor cost, improve the production efficiency and ensure the production consistency; especially in the household electrical appliance industry, the industry competition is more vigorous, and how to better guarantee the quality and reduce the cost becomes an important direction of the survival and development of the household electrical appliance enterprises.

The fields of televisions and displays are developed towards ultra-thin, narrow-frame, borderless, high brightness, high contrast and low energy consumption. Meanwhile, the internal structure is required to be more compact, and the appearance is required to be the whole sense of harmony. Taking a television as an example, a rear shell is taken as an important safety component of the television, circuit components in the television are wrapped at the rear of the television, the safety isolation protection function is achieved, the rear shell is generally locked on a television screen backboard by adopting screws, and a certain number of screw fixing pit holes and corresponding screws are reserved around the rear shell. With the deep design concept of 360-degree dead angle-free appearance of the television, a rear shell which is positioned behind the television and is not paid attention to in the past is important, and a screw-free scheme of the rear shell is an important development direction of the field of televisions.

In the prior art, most of the display devices are realized by fastening the rear case without screws mainly by a buckle or a variant of the buckle. The hard connection of buckle has the advantage of reliable connection, simple to operate. However, because the buckle is hard connected and has no unlocking structure, under the scene that the rear shell needs to be disassembled in maintenance, after sales and the like, the hard connected buckle is easy to break, so that the rear shell cannot be used secondarily.

Disclosure of Invention

The utility model aims to provide a display device which is convenient for the disassembly and the assembly of a middle rear shell on a backboard and saves the cost.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a display device including a back plate, an electronic component, and a rear cover; the front side of the backboard is provided with a display panel for displaying image information; a plurality of positioning clamping columns protruding backwards are arranged on the top side of the back surface of the backboard; the rear end of the positioning clamping column is outwards protruded along the radial direction of the positioning clamping column to form a protruding part; the rear cover comprises a middle rear shell, and left and right rear shells arranged on the left and right sides of the middle rear shell; the middle rear shell is used for covering the back of the backboard, and a convex positioning part is formed on the front side surface of the middle rear shell; the positioning part is provided with a positioning clamping groove with an opening at the upper end, the positioning clamping groove can be clamped on the positioning clamping column upwards, the left-right and upward movement of the positioning part is limited, and the positioning part is limited between the back surface of the back plate and the protruding part along the front-back direction; the positioning part is arranged on the top side of the middle rear shell, so that after the positioning clamping groove is clamped on the positioning clamping column, the middle rear shell can turn back and forth around the connecting part of the positioning clamping groove on the positioning clamping column; the left and right backshells are detachably connected to the left and right sides of the backboard, and one ends of the left and right backshells, which face the middle backshells, are lapped and pressed on the left and right edges of the middle backshells so as to press the middle backshells on the back of the backboard.

In some embodiments of the present application, steps are formed on both the left and right sides of the middle rear shell in a protruding manner; and one ends of the left and right rear shells, which face the middle rear shell, are lapped and pressed on the steps, and the back surfaces of the left and right rear shells are protruded forward beyond the back surface of the middle rear shell or are flush with the back surface of the middle rear shell.

In some embodiments of the present application, the steps extend up and down, and the rear sides of the steps are on the same plane, so that the left and right rear shells can slide up and down along the steps at the parts overlapping the steps; the left and right rear shells can slide upwards along the back of the back plate and the steps, and are clamped and limited on the back of the back plate.

In some embodiments of the present application, the upper and lower ends of the step are respectively close to or beyond the upper and lower ends of the back plate, and the left and right rear shells cover the step; the left and right rear shells support the bottom ends of the steps upwards.

In some embodiments of the present application, the top side and the left side and the right side of the back plate are respectively provided with a plurality of spacing clamping columns protruding backward, and the spacing clamping columns are located at the left side and the right side of the positioning clamping column; the rear end of the limiting clamping column is outwards protruded along the radial direction of the rear end of the limiting clamping column to form a protruding part; protruding limiting parts are formed on the front side surfaces of the left rear shell and the right rear shell; a limiting clamping groove with an opening at the upper end is formed in the limiting part; the limiting clamping groove can be clamped in the limiting clamping column upwards, the limiting part is limited to move left and right and upwards, and the limiting part is limited between the back surface of the back plate and the protruding part along the front-back direction.

In some embodiments of the present application, a part of the limiting parts are disposed on a side of the left and right rear shells facing away from the middle rear shell, and are disposed at intervals along an up-down direction; part of the limiting clamping columns are arranged at the left edge and the right edge of the backboard and are vertically spaced; the steps extend up and down, and the back sides of the steps are positioned on the same plane, so that the left and right rear shells can slide up and down along the steps at the part which is lapped on the steps.

In some embodiments of the present application, a protruding limiting structure is formed on a side of the left and right backshells facing the middle backshell, and the limiting structure is clamped on the middle backshell or the back plate, so that the side of the left and right backshells facing the middle backshell is pressed on the middle backshell.

In some embodiments of the present application, a limiting hole is formed on the left and right side walls of the middle and rear shell, and the limiting hole extends in the up-down direction; the left and right rear shells are attached to the middle rear shell towards one side of the middle rear shell; the left and right rear shells face to one side of the middle rear shell to form a protruding limiting clamp protrusion, so that the limiting structure is formed, and the limiting clamp protrusion can slide in the limiting clamp hole along the up-down direction and is limited in the limiting clamp hole along the front-back direction.

In some embodiments of the present application, the limiting clip hole includes a penetrating section in a direction from bottom to top, and a limiting section extending upward from an upper end of the penetrating section; the hole cavity of the penetrating section exceeds the limit section backwards; the limiting clamp convex comprises an extension section connected to the left and right rear shells and a clamping section bent and extended backwards from one end of the extension section, which is opposite to the corresponding left and right rear shells; the clamping section can penetrate through the penetrating section, and when the extending section penetrates through the limiting section, the clamping section penetrates through the left side wall and the right side wall of the middle rear shell and is lapped on the left side wall and the right side wall of the middle rear shell.

In some embodiments of the present application, the limiting clip hole and the limiting clip protrusion are all provided with a plurality of limiting clip holes along the vertical direction at intervals, and are correspondingly provided.

According to the technical scheme, the utility model has at least the following advantages and positive effects:

in the utility model, a plurality of positioning clamping columns protruding backwards are arranged on the top side of the back surface of the backboard; the rear end of the positioning clamping column is outwards protruded along the radial direction of the positioning clamping column to form a protruding part. A convex positioning part is formed on the upper front side surface of the middle rear shell; the locating part is provided with a locating clamping groove with an opening at the upper end, the locating clamping groove can be clamped on the locating clamping column upwards, the left and right of the locating part and the upward movement of the locating part are limited, and the locating part is limited between the back surface of the backboard and the protruding part along the front and back direction. And the locating part sets up in the sky side of well backshell to after the location draw-in groove block on the locator card post, well backshell can overturn around the junction of location draw-in groove on the locator card post, thereby can be when the backshell in the installation, make the location draw-in groove block behind the locator card post, make well backshell overturn for the backplate relatively, and make well backshell laminating on the backplate.

Further, the left and right backshells are detachably connected to the left and right sides of the backboard, and one ends of the left and right backshells, which face the middle backshell, are overlapped and pressed on the left and right edges of the middle backshell so as to press the middle backshell on the back of the backboard. Therefore, the middle rear shell is fixed on the back of the back plate through the pressing of the left rear shell and the right rear shell and the clamping of the positioning clamping groove on the positioning clamping column, so that the use of rear cover screws is reduced or screws are not needed, and the cost is saved. The cooperation of location card post and location draw-in groove is convenient dismantlement and block repeatedly to make things convenient for the multiple assembly and disassembly of back lid on the backplate.

Drawings

Fig. 1 is a schematic view of a display device according to the present utility model.

Fig. 2 is a schematic view of the back structure of the display device of the present utility model.

Fig. 3 is an exploded view of the display device of the present utility model.

Fig. 4 is a schematic structural view of the back plate of the present utility model.

Fig. 5 is an enlarged view at a in fig. 4.

Fig. 6 is an enlarged view at B in fig. 4.

Fig. 7 is a schematic exploded view of the rear cover embodiment of the present utility model.

Fig. 8 is a schematic view of the rear case embodiment of the present utility model.

Fig. 9 is an enlarged view at C in fig. 8.

Fig. 10 is a schematic view of another view of the rear housing embodiment of the present utility model.

Fig. 11 is an enlarged view of D in fig. 10.

Fig. 12 is a schematic view showing the connection of the rear case to the back plate in the present utility model.

Fig. 13 is a schematic view of the structure of a left and right rear case embodiment of the present utility model from one view angle.

Fig. 14 is a schematic view of another view of the left and right rear case embodiments of the present utility model.

Fig. 15 is an enlarged view at E in fig. 14.

The reference numerals are explained as follows: 100. a back plate; 110. positioning a clamping column; 111. a protruding portion; 120. limiting clamping columns; 121. a boss; 200. a display panel; 300. a lower front case; 400. a rear cover; 410. middle and rear shells; 411. a positioning part; 412. positioning clamping grooves; 413. a step; 414. limiting clamping holes; 4141. a penetrating section; 4142. a limiting section; 420. left and right rear shells; 421. a limit part; 422. a limit clamping groove; 423. a bottom wall; 424. the limit clamp is convex; 4241. an extension section; 4242. and a clamping section.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the prior art, most of the display devices are realized by fastening the rear case without screws mainly by a buckle or a variant of the buckle. The hard connection of buckle has the advantage of reliable connection, simple to operate. However, because the buckle is hard connected and has no unlocking structure, under the scene that the rear shell needs to be disassembled in maintenance, after sales and the like, the hard connected buckle is easy to break, so that the rear shell cannot be used secondarily. The application provides a display device to solve the above technical problems.

For convenience of description and understanding, a vertical direction is an up-down direction, a direction facing a user is a front direction, a direction facing away from the user is a rear direction, and a width direction of the display device is a left-right direction with reference to a state when the display device is vertically used. In the display device, the top side is the upper side.

Fig. 1 is a schematic view of a display device according to the present utility model. Fig. 2 is a schematic view of the back structure of the display device of the present utility model. Fig. 3 is an exploded view of the display device of the present utility model.

Referring to fig. 1 to 3, the present embodiment provides a display device mainly including a back plate 100, a display panel 200 mounted on a front side of the back plate 100, a lower front case 300 disposed under the back plate 100, and a rear cover 400 detachably mounted on a rear surface of the back plate 100. The display device is a television, a computer monitor, or the like, and a television will be described as an example.

The front side of the back plate 100 is sequentially provided with a light source, an optical film set and a display panel 200. The light emitted from the light source is projected onto the display panel 200 through the optical film set, and the image information is displayed on the display panel 200 through the effect of the display panel 200.

The light source, the optical film set and the display panel 200 are all disposed on the front side of the back plate 100. The backboard 100 is a main supporting structure of the display device, and the backboard 100 is arranged in the vertical direction; the peripheral edge of the back plate 100 is formed with a frame protruding forward; the rim is disposed circumferentially and extends around the edge of the back plate 100. The bezel extends forward beyond the front side of the back plate 100, and the bezel and the back plate 100 enclose a mounting cavity with a front opening for mounting the backlight source and the optical film set. The display panel 200 is fixed to the front end of the bezel.

The frame may be a middle frame that secures the peripheral edges of the back plate 100. The middle frame wraps around the edges of the back plate 100, and the middle frame surrounds the peripheral edges of the back plate 100. In some embodiments, the bezel and the back plate 100 are integrally formed, with the edge of the back plate 100 extending forward to form the bezel, which is circumferentially disposed.

The light source is used for emitting light, the light source and the optical film group are arranged in parallel, the light source is positioned on the light inlet side behind the optical film group and used for emitting light towards the optical film group, and the optical film group is positioned in front of the backlight source so as to obtain uniform white light on the light outlet side in front of the optical film group after the light passes through the optical film group.

The backlight is an LED lamp panel, the LED lamp panel is attached to the bottom surface of the mounting cavity, and the LED lamp panel emits white light forward towards the optical film group. In some embodiments, the backlight and the optical film set have a spacing between the up and down directions to form a light mixing distance. In other embodiments, the backlight and the optical film set are attached in an up-down direction.

The optical film group is arranged in front of the backlight source and is spaced from the backlight source, so that the uniformity of the light source is improved and the brightness of the light source is enhanced. The optical film group comprises a diffusion plate and a plurality of films which are sequentially arranged. The plurality of films includes a light enhancement sheet and a plurality of prism sheets, or the plurality of films includes a plurality of prism sheets.

The display panel 200 is located in front of the optical film set, light in the optical film set is transmitted to the display panel 200 forward, liquid crystal molecules in the display panel 200 are stimulated by an electric field to deflect, the passing rate of the light emitted into the liquid crystal panel by the optical film set is reduced, and then the light is projected into optical filters with different colors to form images.

The rear side of the back plate 100 is provided with a rear cover 400, the rear cover 400 is fixed to the rear surface of the back plate 100, and a receiving cavity is formed between the front side of the rear cover 400 and the rear side of the back plate 100. And electronic components such as a main board, a power panel and other driving components are arranged in the accommodating cavity. The main board, the power board and other driving components are located within the enclosure of the rear cover 400 to protect the components within the chamber through the rear cover 400.

The main board is mainly used for calculating a control system of the display device and correspondingly outputting related operation instructions. The main board is provided with a large number of electronic components, and an operation instruction output by the main board is mainly transmitted to a corresponding operation end.

The power panel is separately disposed or integrated on the motherboard and is fixed on the back surface of the back panel 100, and is mainly used for providing a driving voltage or a stable working voltage for the motherboard and keeping the output current stable when the circuit on the motherboard works.

Other driving components include speakers, power strips, etc. The speaker is disposed on the back of the back plate 100, and is mainly used for emitting corresponding sound in cooperation with the interface displayed by the display panel 200. The power strip is provided with a plurality of interfaces of different types for connecting with external equipment. To receive signals from or output signals to external devices. In some embodiments, the strip is integrated on the motherboard. The other driving components can be a remote control module or a voice module and other structures.

In some embodiments, the display device further includes a chassis fixed to the back surface of the back plate 100 for supporting the back plate 100, thereby supporting the entire display device. In other embodiments, the base is disposed on the back cover 400. In other embodiments, no base is provided on the display device and a hanger is provided on the back of the display device to hang the display device on a wall.

Fig. 4 is a schematic structural view of the back plate of the present utility model. Fig. 5 is an enlarged view at a in fig. 4. Fig. 6 is an enlarged view at B in fig. 4.

Referring to fig. 3 to 6, the back plate 100 of the back plate 100 is fixed with electronic components, and a plurality of protruding structures (not shown) protruding backward are formed on the back surface of the back plate 100 and the other surface of the electronic components, respectively. After the circuit board, power supply, and other electronic components are mounted on the back surface of the back plate 100, the electronic components must be protruded backward to form a protruded structure.

The top side of the back plate 100 is provided with a plurality of positioning clamp columns 110 protruding backwards, the positioning clamp columns 110 are arranged in the middle of the left-right direction of the top side of the back plate 100, and the centers of the positioning clamp columns 110 are on the same straight line extending along the left-right direction. The positioning clip columns 110 are arranged at intervals along the left-right direction so as to limit the rear cover 400. The rear end of the positioning clip column 110 is formed with a protruding portion 111 protruding outward in the radial direction thereof. The locator card post 110 is adjacent to the upper end of the back plate 100.

In this embodiment, a plurality of spacing posts 120 protruding backward are respectively disposed on the top side and the left and right sides of the back surface of the back plate 100, and the spacing posts 120 are disposed on the left and right sides of the positioning posts 110. The limiting clamping columns 120 are provided in plurality, and part of the limiting clamping columns 120 are arranged on the top side of the backboard 100 and are arranged at intervals along straight lines in the left-right direction. The partial limiting clamping columns 120 are arranged on the top side of the backboard 100, and the partial limiting clamping columns 120 are arranged on the left and right edges of the backboard 100 and are vertically spaced. The rear end of the limit clip column 120 is formed with a protruding portion 121 protruding outward in the radial direction thereof.

The limit clamping column 120 and the positioning clamping column 110 are integrally formed on the back surface of the back plate 100 or are independently fixed on the back plate 100. In this embodiment, the back plate 100 is formed by bending and stamping a metal plate, and the back plate 100 is formed by stamping a metal plate, so that the back plate 100 has a thinner thickness on the basis of ensuring the structural strength of the back plate 100, so that the front and rear of the display device are thinner.

The limit clamping column 120 and the positioning clamping column 110 are fixed on the back of the back plate 100 through bolts or rivets. The top and left and right sides of the back panel 100 are bent forward and extended and then bent downward to form a frame in which the display panel 200 is disposed. The lower front case 300 is disposed at the ground side of the back plate 100 to be plugged at the bottom of the frame and support the display panel 200 upward.

In some embodiments, the back plate 100 is injection molded with plastic material, and the limiting clamping columns 120 and the positioning clamping columns 110 are integrally formed on the back surface of the back plate 100.

Fig. 7 is a schematic exploded view of the rear cover embodiment of the present utility model.

Referring to fig. 2 to 7, the rear cover 400 includes a middle rear case 410, and left and right rear cases 420 disposed at left and right sides of the middle rear case 410; the middle rear case 410 is used to cover the back surface of the back plate 100 and cover all or part of the electronic components on the back surface of the back plate 100.

The front side of the middle rear case 410 is formed with a plurality of protruding structures (not shown) for enhancing the structural strength of the middle rear case 410 and for cooperating with the electronic components on the back plate 100; the plurality of protruding structures and the protruding structures on the plurality of electronic components are respectively opposite and staggered.

In the prior art, the ultra-thin arrangement of the display device is an important research field of the display device. In order to ensure that the display device has a thinner thickness in the front and rear, the thickness of the rear cover 400 is generally set thinner, and on the basis of the thinner rear cover 400, corresponding protruding structures such as reinforcing ribs are arranged on the front side of the rear cover 400, so as to ensure the structural strength of the rear cover 400. The provision of the stiffener requires misalignment with the corresponding connection structure on the back plate 100. Meanwhile, in order to reduce the thickness of the display device, the front side of the rear cover 400 is as close to the electronic components as possible, so as to avoid deformation of the rear cover 400 due to heat released from the electronic components. Protruding structures such as thickened ribs are arranged at corresponding positions on the rear cover 400. The provision of the protruding structure is installed on the back surface of the back plate 100 in such a manner that it is difficult to use the back cover 400 to slide along the back surface of the back plate 100, and the sliding of the back cover 400 easily causes damage to the electronic components. The rear cover 400 is generally attached to the back plate 100 from the rear to the front, and then fastened to the back plate 100 by bolts. In the prior art, the display device is generally large in size, more screws are required to be used, and a great deal of time and cost are required to install and detach the screws.

In this embodiment, the middle rear shell 410 is covered on the back plate 100 from the back to the front direction, the left and right rear shells 420 are pressed on the back of the middle rear shell 410, so that the middle rear shell 410 is limited on the back of the back plate 100, and the setting of screws on the middle rear shell 410 is reduced by limiting the middle rear shell 410 with the left and right rear shells 420, so that the protruding structure of the front side of the middle rear shell 410 is effectively reduced, and a larger effective space is provided between the middle rear shell 410 and the back plate 100 for mounting electronic components.

Fig. 8 is a schematic view of the rear case embodiment of the present utility model. Fig. 9 is an enlarged view at C in fig. 8. Fig. 10 is a schematic view of another view of the rear housing embodiment of the present utility model. Fig. 11 is an enlarged view of D in fig. 10. Fig. 12 is a schematic view showing the connection of the rear case to the back plate in the present utility model.

Referring to fig. 4 to 12, in the present embodiment, a front side of the middle rear case 410 is formed with a protruding positioning portion 411; the positioning portion 411 is provided with a positioning slot 412 with an opening at the upper end, the positioning slot 412 can be clamped on the positioning clip column 110 upwards, the left-right and upward movement of the positioning portion 411 is limited, and the positioning portion 411 is limited between the back surface of the back plate 100 and the protruding portion 111 along the front-back direction. The positioning portions 411 are disposed at intervals along the left-right direction, so as to correspond to the positioning clip columns 110 on the back plate 100.

The positioning portion 411 is disposed on the top side of the middle back shell 410, so that after the positioning slot 412 is engaged with the positioning post 110, the middle back shell 410 can turn back and forth around the connection portion of the positioning slot 412 on the positioning post 110. When the middle rear shell 410 is mounted on the back plate 100, the top side of the middle rear shell 410 can be inclined forward, the positioning part 411 on the top side of the middle rear shell 410 is engaged with the positioning clamping column 110, and then the bottom of the middle rear shell 410 is turned towards the back plate 100, so that the middle rear shell 410 is attached to the back plate 100. When the middle rear case 410 is disassembled, the lower end of the middle rear case 410 is turned back to the back plate 100 so that the middle rear case 410 is inclined, and then the middle rear case 410 is set to be pulled downward so that the positioning part 411 and the positioning clip 110 are separated. The middle rear case 410 is defined on the display device by being positioned between the card post 110 and the positioning part 411 so that the middle rear case 410 can be disassembled and assembled a plurality of times.

In this embodiment, steps 413 are formed to protrude from both the left and right sides of the middle rear case 410; the left and right rear cases 420 overlap and press-fit on the step 413 toward one end of the middle rear case 410 to press-fit the middle rear case 410 on the rear surface of the rear plate 100, so that the middle rear case 410 is stably restrained on the rear surface of the rear plate 100. The left and right rear cases 420 are pressed on the step 413 to reduce the thickness of the left and right rear cases 420 at the overlapping portion of the middle rear case 410, so as to achieve the ultra-thin effect of the display device. The rear surfaces of the left and right rear cases 420 protrude forward beyond the rear surface of the middle rear case 410 or are flush with the rear surface of the middle rear case 410 so that the arrangement of the left and right rear cases 420 does not cause an increase in the thickness of the display device.

In this embodiment, the left and right side walls of the middle rear case 410 are provided with limiting holes 414, and the limiting holes 414 extend in the up-down direction. The limiting snap holes 414 are adapted to cooperate with the left and right rear shells 420 to limit relative movement between the left and right rear shells 420 and the middle rear shell 410.

In the present embodiment, the limiting clip hole 414 includes a penetrating section 4141 and a limiting section 4142 extending upward from the upper end of the penetrating section 4141 in a downward-upward direction; the hole cavity of the penetrating section 4141 extends backwards beyond the limiting section 4142, so that a pair of structures on the left and right rear shells 420 can conveniently penetrate through the penetrating section 4141 and be clamped on the limiting section 4142.

It should be noted that, in some embodiments, the lower portion or bottom of the middle rear case 410 uses a bolt or a snap structure to limit the middle rear case 410 to the back plate 100. The cooperation of the positioning portion 411 and the positioning clip 110 is used in the upper portion for reducing the use of screws.

Fig. 13 is a schematic view of the structure of a left and right rear case embodiment of the present utility model from one view angle. Fig. 14 is a schematic view of another view of the left and right rear case embodiments of the present utility model. Fig. 15 is an enlarged view at E in fig. 14.

Referring again to fig. 4 to 15, in the present embodiment, there are two left and right rear cases 420, and the two left and right rear cases 420 are respectively disposed at the left and right sides of the middle rear case 410. The left and right rear cases 420 overlap and press-fit on the middle rear case 410 toward one side of the middle rear case 410, so as to press-fit the middle rear case 410 on the back plate 100, and reduce or eliminate the need to fix the middle rear case 410 with screws on the basis of limiting the middle rear case 410 on the back surface of the back plate 100.

The left and right rear cases 420 are detachably connected to the left and right sides of the back plate 100, and one ends of the left and right rear cases 420 facing the middle rear case 410 overlap and are press-fit on the left and right edges of the middle rear case 410 to press-fit the middle rear case 410 on the back surface of the back plate 100. The middle rear case 410 is limited by overlapping and pressing the middle rear case 410 by the left and right rear cases 420, so that a plurality of degrees of freedom of the middle rear case 410 are limited, and the use of screws on the middle rear case 410 is reduced.

The middle rear case 410 is limited by the left and right rear cases 420, so that the middle rear case 410 is indirectly limited by the limitation of the left and right rear cases 420, and fewer limiting structures are arranged on the middle rear case 410.

The left and right rear cases 420 have the same height in the up-down direction as the middle rear case 410, and the left and right rear cases 420 overlap at least the middle in the up-down direction of the middle rear case 410, so that deformation of the middle rear case 410 can be effectively prevented. As same as

In this embodiment, the step 413 extends up and down, and the rear sides of the step 413 are on the same plane, so that the left and right rear cases 420 can slide up and down along the step 413 at the portion overlapped on the step 413. The step 413 may be of unitary construction or of a plurality of vertically spaced construction.

In this embodiment, protruding limiting portions 421 are formed on the front side surfaces of the left and right rear cases 420; the limiting part 421 is provided with a limiting clamping groove 422 with an opening at the upper end; the limiting slot 422 can be clamped in the limiting clamping column 120 upwards, limits the left and right and upward movement of the limiting portion 421, enables the limiting portion 421 to be limited between the back surface of the back plate 100 and the protruding portion 121 along the front and rear direction, and reduces the use of screws on the left and right rear shells 420 by matching the limiting portion 421 on the left and right rear shells 420 on the limiting clamping column 120.

The partial limiting parts 421 are arranged at one side of the left and right rear shells 420 facing away from the middle rear shell 410 and are arranged at intervals along the up-down direction; the partial limiting clamping columns 120 are arranged at the left edge and the right edge of the backboard 100 and are vertically spaced; the step 413 extends up and down, and the rear side of the step 413 is on the same plane, so that the left and right backshells 420 can slide up and down along the step 413 at the part overlapped on the step 413, and when the left and right backshells 420 are installed, the left and right backshells 420 are attached to the step 413 and slide up, so that the limit clamping grooves 422 on the left and right backshells 420 can be matched with the limit clamping columns 120 on the backboard 100, and the left and right backshells 420 are limited on the backboard 100.

In some embodiments, the left and right rear shells 420 are secured to the back plate 100 by bolts or screws. Or screws or bolts are further provided between the left and right rear cases 420 and the back plate 100.

The left and right rear cases 420 support the middle rear case 410 upward to restrict downward movement of the middle rear case 410. In this embodiment, the bottom walls 423 of the left and right rear cases 420 extend forward, and the bottom walls 423 of the left and right rear cases 420 are connected to the lower front case 300. Bottom walls 423 of the left and right rear cases 420 support the bottom of the step 413 upward.

The upper end and the lower end of the step are respectively close to or exceed the upper end and the lower end of the backboard, and the left and the right rear shells cover the step, so that acting force is integrally applied to the left and the right edges of the middle rear shell, and the local deformation of the middle rear shell is avoided.

The side of the left and right rear cases 420 facing the middle rear case 410 is formed with a protruding limit structure, which is engaged on the middle rear case 410 or the back plate 100, so that the side of the left and right rear cases 420 facing the middle rear case 410 is pressed against the step 413.

In this embodiment, the left and right rear cases 420 are attached to the middle rear case 410 toward one side of the middle rear case 410; a protruding limit clip protrusion 424 is formed on one side of the left and right rear cases 420 facing the middle rear case 410 to form a limit structure, the limit clip protrusion 424 can slide in the up and down direction in the limit clip hole 414, and one side of the left and right rear cases 420 facing the middle rear case 410 is attached to the middle rear case 410; a protruding stop block protrusion 424 is formed on a side of the left and right rear cases 420 facing the middle rear case 410, so as to form a stop structure, and the stop block protrusion 424 can slide in the up and down direction in the stop block hole 414. And is retained in the retaining clip hole 414 in the front-rear direction. The limiting lugs 424 are limited in the limiting clamping holes 414 in the front-rear direction, so that the right and left rear shells 420 can be kept pressed against the middle rear shell 410.

In this embodiment, the limiting latch 424 includes an extension 4241 connected to the left and right rear shells 420, and a latch 4242 bent and extended backward from one end of the extension 4241 opposite to the corresponding left and right rear shells 420; the engaging section 4242 can pass through the penetrating section 4141 of the upper limit clamping hole 414 of the middle rear housing 410, and when the extending section 4241 is penetrated in the limit section 4142, the engaging section 4242 passes through the left and right side walls of the middle rear housing 410 and is lapped on the left and right side walls of the middle rear housing 410.

When the left and right rear cases 420 are mounted on the back plate 100, the limiting clamping protrusions 424 are opposite to the limiting clamping holes 414 on the middle rear case 410, the left and right rear cases 420 move towards the middle rear case 410 along the left and right directions, the clamping sections 4242 of the limiting clamping protrusions 424 penetrate through the penetrating sections 4141, the left and right rear cases 420 move upwards backwards, the left and right rear cases 420 drive the limiting clamping protrusions 424 to move upwards, the extending sections 4241 of the limiting clamping protrusions 424 move into the limiting sections 4142, and the clamping sections 4242 are lapped on the inner sides of the left and right side walls of the middle rear case 410.

The engagement sections 4242 overlap the inner sides of the left and right side walls of the middle rear case 410, and the left and right rear cases 420 are attached to the middle rear case 410 toward one side of the middle rear case 410, thereby restricting the movement of the left and right rear cases 420 in the left-right direction with respect to the middle rear case 410.

The spacing card hole and spacing card are protruding all to be provided with a plurality ofly along vertical direction interval, and correspond the setting to make the well backshell and control the connection between the backshell and spacing inseparabler.

When the left and right rear shells 420 are mounted, one sides of the left and right rear shells 420 facing the middle rear shell 410 are attached to the middle rear shell 410, so that the limit clamping grooves 422 on the left and right rear shells 420 correspond to the limit clamping columns 120 on the backboard 100, and when the left and right rear shells 420 are moved upwards, the limit clamping grooves 422 on the left and right rear shells 420 can be correspondingly clamped in the limit clamping columns 120, thereby facilitating quick mounting of the left and right rear shells 420. The side walls of the left and right rear cases 420 facing the middle rear case 410 are located in one vertical plane in the up-down direction, and the left and right side walls of the middle rear case 410 are also located in the same vertical plane in the up-down direction for abutting and bonding with the side surfaces of the left and right rear cases 420.

In this embodiment, the left and right rear cases 420 can slide upward along the back surface of the back plate 100 and the step 413, and are engaged and limited to the back surface of the back plate 100. In some embodiments, the left and right rear cases 420 are detachably fixed to the back surface of the back plate 100 by bolts or hooks, so that the middle rear case 410 is convenient to be detached.

In this application, when the backshell 420 is controlled in the installation, make control backshell 420 laminating on backplate 100, and move in the direction of orientation well backshell 410 in the left and right directions, make control the one end laminating of orientation well backshell 410 in the backshell 420 on the corresponding lateral wall of well backshell 410 left and right directions, and make limit structure wear to establish on corresponding spacing draw-in hole 414, on, then control backshell 420 is controlled in the upward slip, make limit structure and spacing draw-in hole 414 spacing mutually, and make control spacing draw-in groove 422 block on spacing portion 421 on backshell 420 on spacing draw-in post 120, thereby make control backshell 420 spacing the back at backplate 100. The left and right rear cases 420 are slidably fixed to the back plate 100 of the back plate 100, so as to facilitate multiple disassembly and assembly of the left and right rear cases 420.

In the present utility model, a plurality of positioning clip columns 110 protruding backward are provided on the top side of the back surface of the back plate 100; the rear end of the positioning clip column 110 is formed with a protrusion 111 protruding outward in the radial direction thereof. A convex positioning part 411 is formed on the upper front side of the middle rear case 410; the positioning portion 411 is provided with a positioning slot 412 with an opening at the upper end, the positioning slot 412 can be clamped on the positioning clip column 110 upwards, the left-right and upward movement of the positioning portion 411 is limited, and the positioning portion 411 is limited between the back surface of the back plate 100 and the protruding portion 111 along the front-back direction. And the positioning portion 411 is disposed on the top side of the middle back shell 410, so that after the positioning slot 412 is clamped on the positioning card post 110, the middle back shell 410 can turn back and forth around the connection portion of the positioning slot 412 on the positioning card post 110, so that when the middle back shell 410 is installed, the positioning slot 412 is clamped on the positioning card post 110, and the middle back shell 410 turns over relatively to the back plate 100, so that the middle back shell 410 is attached to the back plate 100. The middle back case 410 is attached to the back plate 100 in a flip-over manner, so that the protruding structures on the middle back case 410 do not interfere with respect to the back plate 100 and the protruding structures on the electronic component.

Further, left and right rear cases 420 are detachably connected to left and right sides of the back plate 100, and one ends of the left and right rear cases 420 facing the middle rear case 410 overlap and are press-fit on left and right edges of the middle rear case 410 to press-fit the middle rear case 410 on the back surface of the back plate 100. Thus, the middle back shell 410 is fixed on the back of the back plate 100 by pressing the middle back shell 410 and the positioning clamping grooves 412 on the positioning clamping columns 110, so that the use of screws of the back cover 400 is reduced or no screws are needed, and the cost is saved. The cooperation of the positioning clip column 110 and the positioning clip groove 412 facilitates repeated disassembly and engagement, so as to facilitate repeated disassembly and assembly of the rear cover 400 on the back plate 100.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A display device, comprising:

a back plate, the front side of which is provided with a display panel for displaying image information; a plurality of positioning clamping columns protruding backwards are arranged on the top side of the back surface of the backboard; the rear end of the positioning clamping column is outwards protruded along the radial direction of the positioning clamping column to form a protruding part;

the rear cover comprises a middle rear shell and left and right rear shells arranged on the left side and the right side of the middle rear shell; the middle rear shell is used for covering the back of the backboard, and a convex positioning part is formed on the front side surface of the middle rear shell; the positioning part is provided with a positioning clamping groove with an opening at the upper end, the positioning clamping groove can be clamped on the positioning clamping column upwards, the left-right and upward movement of the positioning part is limited, and the positioning part is limited between the back surface of the back plate and the protruding part along the front-back direction;

the positioning part is arranged on the top side of the middle rear shell, so that after the positioning clamping groove is clamped on the positioning clamping column, the middle rear shell can turn back and forth around the connecting part of the positioning clamping groove on the positioning clamping column; the left and right backshells are detachably connected to the left and right sides of the backboard, and one ends of the left and right backshells, which face the middle backshells, are lapped and pressed on the left and right edges of the middle backshells so as to press the middle backshells on the back of the backboard.

2. The display device according to claim 1, wherein the middle rear case is formed with steps protruding from both left and right sides thereof; and one ends of the left and right rear shells, which face the middle rear shell, are lapped and pressed on the steps, and the back surfaces of the left and right rear shells are protruded forward beyond the back surface of the middle rear shell or are flush with the back surface of the middle rear shell.

3. The display device according to claim 2, wherein the steps extend up and down, and rear sides of the steps are on the same plane so that the left and right rear cases can slide up and down along the steps at portions overlapped on the steps; the left and right rear shells can slide upwards along the back of the back plate and the steps, and are clamped and limited on the back of the back plate.

4. The display device according to claim 2, wherein upper and lower ends of the step are respectively adjacent to or beyond upper and lower ends of the back plate, and the left and right rear cases cover the step; the left and right rear shells support the bottom ends of the steps upwards.

5. The display device according to claim 2, wherein a plurality of limiting clamping columns protruding backwards are respectively arranged on the top side and the left side and the right side of the back surface of the back plate, and the limiting clamping columns are positioned on the left side and the right side of the positioning clamping columns; the rear end of the limiting clamping column is outwards protruded along the radial direction of the rear end of the limiting clamping column to form a protruding part; protruding limiting parts are formed on the front side surfaces of the left rear shell and the right rear shell; a limiting clamping groove with an opening at the upper end is formed in the limiting part; the limiting clamping groove can be clamped in the limiting clamping column upwards, the limiting part is limited to move left and right and upwards, and the limiting part is limited between the back surface of the back plate and the protruding part along the front-back direction.

6. The display device according to claim 5, wherein a part of the stopper portions are provided on a side of the left and right rear cases facing away from the middle rear case and are spaced apart in an up-down direction; part of the limiting clamping columns are arranged at the left edge and the right edge of the backboard and are vertically spaced; the steps extend up and down, and the back sides of the steps are positioned on the same plane, so that the left and right rear shells can slide up and down along the steps at the part which is lapped on the steps.

7. The display device according to any one of claims 1 to 6, wherein a side of the left and right rear cases facing the middle rear case is formed with a protruding stopper structure that is engaged on the middle rear case or the back plate so that the side of the left and right rear cases facing the middle rear case is pressed against the middle rear case.

8. The display device according to claim 7, wherein the left and right side walls of the middle and rear cases are provided with limit clamping holes, and the limit clamping holes extend in the up-down direction; the left and right rear shells are attached to the middle rear shell towards one side of the middle rear shell; the left and right rear shells face to one side of the middle rear shell to form a protruding limiting clamp protrusion, so that the limiting structure is formed, and the limiting clamp protrusion can slide in the limiting clamp hole along the up-down direction and is limited in the limiting clamp hole along the front-back direction.

9. The display device according to claim 8, wherein the stopper hole includes a penetrating section in a downward-upward direction, and a stopper section extending upward from an upper end of the penetrating section; the hole cavity of the penetrating section exceeds the limit section backwards; the limiting clamp convex comprises an extension section connected to the left and right rear shells and a clamping section bent and extended backwards from one end of the extension section, which is opposite to the corresponding left and right rear shells; the clamping section can penetrate through the penetrating section, and when the extending section penetrates through the limiting section, the clamping section penetrates through the left side wall and the right side wall of the middle rear shell and is lapped on the left side wall and the right side wall of the middle rear shell.

10. The display device according to claim 8, wherein the limiting clip holes and the limiting clip protrusions are each provided in a plurality at intervals along a vertical direction and are correspondingly provided.