CN111491470B

CN111491470B - Display device

Info

Publication number: CN111491470B
Application number: CN202010237925.3A
Authority: CN
Inventors: 盛尊友; 段元兴
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-08-24
Anticipated expiration: 2040-03-30
Also published as: CN111491470A

Abstract

The invention provides a display device which comprises a shell, a back plate, a key assembly and a circuit board. The through-hole has been seted up on the casing, the backplate holds in the casing, key assembly includes key-press support and button, key-press support is last to have holding surface and fitting surface, this holding surface laminating supports in the surface of backplate, the contained angle has between fitting surface and the holding surface, the fitting surface laminating cooperates in the inner wall of casing for key-press support is by the surface of backplate towards the inner wall of casing with inclining, thereby key-press support can make full use of the space between casing and the backplate, reduce display device's whole thickness effectively. In addition, the key support is attached to the inner wall of the shell on the premise that the space between the shell and the back plate is fully utilized, the shell for accommodating the key assembly is prevented from being arranged outside the shell, and therefore the appearance effect of the display device is improved.

Description

Display device

Technical Field

The invention relates to the technical field of display equipment, in particular to display equipment.

Background

The display device displays different interfaces for a user to watch, and the display device is suspended on a platform or a wall through a hanging rack. The user presses the keys of the display device to switch the interface displayed by the display device.

Be equipped with the key assembly on the button, this key assembly sets up in one side of display device's backplate to install on the backplate, in the correlation technique, the key assembly is installed on the backplate flatly, extends towards the casing along display device's thickness direction, and the space that the key assembly occupied is great, leads to the protruding shell that holds the key assembly that is equipped with in surface of casing, should hold the outward appearance effect that the shell influences display device.

Disclosure of Invention

The invention aims to provide a display device to improve the appearance effect of the display device.

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

according to an aspect of the present invention, there is provided a display device including: a housing having a through hole formed therein; a back plate accommodated within the housing; the key assembly comprises a key support, a circuit board and keys; the key support is provided with a supporting surface and a matching surface, and the supporting surface is attached to and supported on the surface of the back plate; an included angle is formed between the matching surface and the supporting surface, and the matching surface is matched with the inner wall of the shell in an opposite mode; the circuit board is accommodated in the key support; the key is movably arranged in the key support and is opposite to the circuit board; the key protrudes out of the matching surface and penetrates out of the through hole.

In some embodiments of the invention, the key holder comprises: the platform part, its one surface forms the said mating surface, its surface of both ends back to the said mating surface has first supporting part and second supporting part separately to protrude, the terminal surface of the first supporting part and terminal surface of the said second supporting part are on the identity level and form the said bearing surface; the height of the first supporting part and the height of the second supporting part have a height difference; the cover part is convexly arranged on the matching surface of the platform part; the cover casing part penetrates out of the through hole; the housing is provided with a via hole which is in clearance fit with the key.

In some embodiments of the present invention, the back plate is provided with a fastening hole; and a buckle is convexly arranged on one side of the first supporting part and is buckled and connected with the buckle hole.

In some embodiments of the present invention, the back plate is provided with a first positioning hole; the side surface of the first supporting part facing the buckle is convexly provided with a first positioning column which is spaced from the buckle; the first positioning column is connected with the first positioning hole in a positioning mode.

In some embodiments of the present invention, the back plate is provided with a latch hole; one side of the second supporting part is convexly provided with an inserting tongue, and the inserting tongue and the buckle are arranged in a back-to-back manner; the inserting tongue is connected with the inserting tongue hole in a buckling mode.

According to some embodiments of the invention, the surface of the platform part, which faces away from the cover part, is provided with a receiving groove, and the receiving groove is communicated with the through hole; the circuit board is accommodated in the accommodating groove; and a swinging rocker is arranged on the circuit board, is arranged relative to the via hole and is fixedly connected with the key.

In some embodiments of the present invention, the inner side wall of the accommodating groove is convexly provided with a clamping plate; the surface of the circuit board is attached to the bottom wall of the accommodating groove; one end of the circuit board is connected with the clamping plate in a clamping manner.

In some embodiments of the invention, a plurality of limiting ribs arranged oppositely are convexly arranged on the inner side wall of the accommodating groove; and two side surfaces of the circuit board are respectively abutted against the corresponding limiting ribs.

In some embodiments of the present invention, the platform portion is provided with a fixing seat, and the fixing seat is arranged at the outer side of the cover portion; the circuit board is fixedly connected with the fixed seat.

In some embodiments of the present invention, the outer peripheral surface of the key is provided with an avoiding groove, and an inner wall of the avoiding groove is spaced from an inner wall of the via hole.

In some embodiments of the present invention, the circuit board is provided with a second positioning hole; and a second positioning column is convexly arranged at one end of the key, which faces the circuit board, and is inserted into the second positioning hole and in clearance fit with the second positioning hole.

According to the technical scheme, the embodiment of the invention at least has the following advantages and positive effects:

in the embodiment of the display device, the shell is provided with the through hole, the back plate is accommodated in the shell, the key assembly comprises the key support and the keys, the key support is provided with the supporting surface and the matching surface, the supporting surface is supported on the surface of the back plate in a fitting mode, an included angle is formed between the matching surface and the supporting surface, and the matching surface is matched with the inner wall of the shell in a fitting mode, so that the key support faces the inner wall of the shell from the surface of the back plate in an inclined mode, the space between the shell and the back plate can be fully utilized by the key support, and the overall thickness of the display device is effectively reduced. In addition, the key support is attached to the inner wall of the shell on the premise that the space between the shell and the back plate is fully utilized, the shell for accommodating the key assembly is prevented from being arranged outside the shell, and therefore the appearance effect of the display device is improved.

When the button subassembly sets up the position nearer from the outward flange in the casing, the key-press support is by the inner wall of the surperficial slope ground orientation casing of backplate, ensures that the key-press support occupies less height in the casing to make the outward flange of casing inwards change gradually, and then reduce display device's thickness and improvement display device's outward appearance effect.

Drawings

Fig. 1 is an oblique view of a display device according to an embodiment of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is an exploded view of a keypad assembly and a back plate in a display device according to an embodiment of the invention.

Fig. 4 is a schematic diagram illustrating a connection between a key assembly and a back panel in a display device according to an embodiment of the present invention.

Fig. 5 is an exploded view of a key assembly in a display device according to an embodiment of the present invention.

Fig. 6 is an exploded view of another perspective of a key assembly in a display device according to an embodiment of the present invention.

The reference numerals are explained below:

100. a display device;

1. a housing; 1a, a through hole; 11. a front housing; 12. a rear housing; 13. an accommodating chamber;

2. a back plate; 21. a snap-in hole; 22. a first positioning hole; 23. a latch hole;

3. a key assembly; 31. a key holder; 31a, a support surface; 31b, a mating face; 311. a platform part; 3111. accommodating grooves; 3112. a clamping plate; 3113. limiting ribs; 3114. a fixed seat; 312. a cover portion; 312a, a via hole; 313. a first support section; 3131. buckling; 3132. a first positioning post; 314. a second support portion; 3141. inserting a tongue; 32. pressing a key; 321. an avoidance groove; 322. a second positioning column; 33. a circuit board; 331. a rocker; 332. and a second positioning hole.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

Fig. 1 is an oblique view of a display device 100 according to an embodiment of the present invention. Fig. 2 is a partially enlarged view of a portion a in fig. 1. Fig. 3 is an exploded view of the key assembly 3 and the back plate 2 in the display device 100 according to the embodiment of the invention.

Referring to fig. 1 to 3, the present invention provides a display device 100, where the display device 100 includes a casing 1, a back plate 2, a key assembly 3 and a display screen. In some embodiments of the present invention, the display device 100 is a television.

The housing 1 serves as an external appearance surface of the display device 100, and the housing 1 is provided with a through hole 1 a. The casing 1 includes a front casing 11 and a rear casing 12 connected to each other, the rear casing 12 and the front casing 11 form an accommodating cavity 13, and the accommodating cavity 13 accommodates the rear panel 2, the key assembly 3, and the circuit board 33.

In some embodiments of the present invention, the through hole 1a is opened in the rear case 12.

A display screen is mounted on the front shell 11, the display screen displaying different interfaces for the user to view.

The back plate 2 is accommodated in the housing 1, and in some embodiments of the present invention, the back plate 2 is parallel to the display screen.

The back plate 2 is provided with a fastening hole 21, a first positioning hole 22 and a tongue insertion hole 23, and the fastening hole 21, the first positioning hole 22 and the tongue insertion hole 23 are spaced from each other. The fastening hole 21, the first positioning hole 22 and the inserting tongue hole 23 all penetrate through the back plate 2.

Fig. 4 is a schematic diagram illustrating a connection between the key assembly 3 and the back panel 2 in the display device 100 according to the embodiment of the invention. Fig. 5 is an exploded view of the key assembly 3 and the circuit board 33 in the display device 100 according to the embodiment of the invention. Fig. 6 is an exploded view of another perspective of the key assembly 3 and the circuit board 33 in the display device 100 according to the embodiment of the invention.

Fig. 4 is a schematic diagram illustrating a connection between the key assembly 3 and the back panel 2 in the display device 100 according to the embodiment of the invention. Fig. 5 is an exploded view of key assembly 3 in display device 100 according to an embodiment of the present invention. Fig. 6 is an exploded view of another perspective of key assembly 3 in display device 100 according to an embodiment of the present invention.

Referring to fig. 4 to 6, the key assembly 3 includes a key support 31, a circuit board 33 and a key 32, wherein the key 32 is movably mounted in the key support 31.

The key support 31 is provided with a supporting surface 31a and a matching surface 31b, and the supporting surface 31a is attached and supported on the surface of the back plate 2; an included angle is formed between the matching surface 31b and the supporting surface 31a, and the matching surface 31b is matched with the inner wall of the housing 1 oppositely, so that the key support 31 is obliquely faced to the inner wall of the housing 1 from the surface of the back plate 2, and the key support 31 can fully utilize the space between the housing 1 and the back plate 2, thereby effectively reducing the overall thickness of the display device 100. In addition, the key holder 31 is attached to the inner wall of the casing 1 on the premise of making full use of the space between the casing 1 and the back panel 2, so that a housing for housing the key assembly 3 is prevented from being provided outside the casing 1, and the appearance effect of the display device 100 is improved.

When the key assembly 3 is disposed in the casing 1 at a position closer to the outer edge, the key holder 31 is inclined from the surface of the back plate 2 toward the inner wall of the casing 1, so that the key holder 31 occupies a smaller height in the casing 1, and thus the outer edge of the casing 1 gradually changes inward, thereby reducing the thickness of the display device 100 and improving the appearance effect of the display device 100.

The key holder 31 includes a platform portion 311, a cover portion 312, a first support portion 313, and a second support portion 314.

The platform 311 is a flat plate as a main body of the key holder 31. One surface of the terrace portion 311 constitutes the mating face 31 b.

The platform 311 is provided with a fixing seat 3114, and the fixing seat 3114 is used for fixing the circuit board 33.

The surface of the platform 311 facing away from the cover 312 is provided with a receiving groove 3111, and an engaging plate 3112 and a plurality of opposing limiting ribs 3113 are protruded on the inner side wall of the receiving groove 3111.

A plurality of relative and spacing muscle 3113 of establishing are located relative two inside walls in holding tank 3111 respectively, and the block board 3112 sets up between a plurality of spacing muscle 3113, is in on the inside wall of holding tank 3111.

The two ends of the platform part 311, which face away from the mating surface 31b, are respectively provided with a first supporting part 313 and a second supporting part 314 in a protruding manner, the second supporting part 314 is arranged corresponding to the first supporting part 313, and the height of the second supporting part 314 is different from the height of the first supporting part 313.

The end surface of the first support part 313 and the second support part 314 are on the same plane to form a support surface 31a, and the support surface 31a is attached to and supported by the surface of the backboard 2, so that the platform part 311 is supported by the backboard 2.

A buckle 3131 is protruded from one side of the first supporting portion 313, and the buckle 3131 is buckled with the buckle hole 21, so as to fixedly connect the first supporting portion 313 and the backboard 2.

In some embodiments of the present invention, there are two buckles 3131, two buckles 3131 are arranged at intervals along the length direction of the first supporting portion 313, and there are two buckle holes 21 corresponding to the buckles 3131.

The first supporting portion 313 is provided with a first positioning post 3132 protruding from a side facing the buckle 3131, the first positioning post 3132 is spaced from the buckle 3131, and the first positioning post 3132 is connected to the first positioning hole 22 in a positioning manner, so that the first supporting portion 313 is connected to the back plate 2 in a positioning manner, and the convenience in mounting the key holder 31 and the back plate 2 is improved.

The first positioning post 3132 is in clearance fit with the first positioning hole 22, so that the first positioning post 3132 adjusts the position relationship of the first positioning hole 22, and thus adjusts the position of the key holder 31.

In addition, the first positioning post 3132 is provided with an observation hole through which a user can easily check the fit between the first positioning post 3132 and the first positioning hole 22, thereby improving the connection accuracy between the first positioning post 3132 and the first positioning hole 22.

In some embodiments of the invention, the first positioning post 3132 is disposed between the two fasteners 3131.

One side of the second supporting portion 314 is convexly provided with an inserting tongue 3141, the inserting tongue 3141 is arranged opposite to the buckle 3131, and the inserting tongue 3141 is buckled with the inserting tongue hole 23, so that the fixed connection of the second supporting portion 314 and the back plate 2 is realized. The second supporting portion 314 and the first supporting portion 313 are fixedly connected to the back panel 2, so as to further improve the stability of the key support 31 and the back panel 2.

In addition, the surface of the platform portion 311 facing away from the supporting surface 31a is a matching surface 31b, and the matching surface 31b is fit to the inner wall of the casing 1, so that the key holder 31 is fit to the inner wall of the casing 1, thereby avoiding a housing case for housing the key assembly 3 outside the casing 1, and improving the appearance effect of the display device 100.

The cover portion 312 is protruded from the mating surface 31b of the platform portion 311 and extends toward the housing 1. The cover portion 312 penetrates the through hole 1 a.

The upper surface of the cover portion 312 has an inwardly concave arc surface to facilitate user operation, thereby improving user experience. Wherein, the upper surface of the cover casing part 312 is provided with character marks.

The cover portion 312 is provided with a through hole 312a, the through hole 312a is communicated with the receiving groove 3111, and the outer side of the cover portion 312 is provided with a fixing seat 3114, so that the fixing seat 3114 is arranged outside the through hole 312a, thereby reducing the volume of the cover portion 312 and further reducing the thickness of the key holder 31.

Since the first positioning posts 3132 are in clearance fit with the first positioning holes 22, the cover part 312 can move relative to the through hole 1a to adjust the clearance between the cover part 312 and the through hole 1a, thereby improving the appearance effect of the cover part 312 and the housing 1.

The key 32 protrudes from the mating surface 31b and passes through the through hole 1a, wherein the key 32 is in clearance fit with the through hole 312a, so that the key 32 has a moving margin relative to the inner wall of the through hole 312a, so that the key 32 can be movably mounted in the key holder 31.

The outer peripheral surface of the key 32 is provided with an avoiding groove 321, the inner wall of the avoiding groove 321 is spaced from the inner wall of the through hole 312a, wherein the avoiding groove 321 is arc-shaped and is concave to the inner wall of the through hole 312a, so that the key 32 moves under the limitation of the inner wall of the through hole 312 a.

The circuit board 33 is accommodated in the key holder 31, specifically, the circuit board 33 is accommodated in the accommodating groove 3111, the surface of the circuit board 33 is attached to the bottom wall of the accommodating groove 3111, one end of the circuit board 33 is engaged with the engaging plate 3112, and the circuit board 33 is mounted and positioned by the engaging connection between the circuit board 33 and the engaging plate 3112, so as to improve the stability of the circuit board 33.

The two side surfaces of the circuit board 33 are respectively abutted to the corresponding limiting ribs 3113, and the circuit board 33 is positioned through the limiting ribs 3113, so that the installation progress of the circuit board 33 and the platform part 311 is improved, and the installation convenience of the circuit board 33 and the platform part 311 is improved.

According to some embodiments of the present invention, the outer contour of the circuit board 33 is adapted to the inner contour of the receiving groove 3111. The opening is all seted up to the both sides face of circuit board 33, through open-ended inner wall and spacing muscle 3113 butt to improve circuit board 33 and spacing muscle 3113's positioning accuracy.

The circuit board 33 is fixedly connected to the fixing seat 3114, and specifically, the circuit board 33 is connected to the fixing seat 3114 through screws. The circuit board 33 is disposed opposite to the keys 32.

The circuit board 33 is provided with a swinging rocker 331, the rocker 331 is electrically connected with an inner layer circuit of the circuit board 33, and the corresponding instruction output in the circuit board 33 is realized through the swinging of the rocker 331. The swing direction of the rocker 331 corresponds to the character mark on the housing 312, and the user can adjust the swing direction of the rocker 331 conveniently through the character mark.

The rocker 331 is engaged with the key 32, and the rocker 331 swings with the swinging of the key 32, thereby adjusting the command output by the circuit board 33.

The rocker 331 is disposed opposite to the through hole 312a, and the key 32 is connected with the rocker 331 through the hole 312a, thereby improving the swinging smoothness of the rocker 331.

The circuit board 33 is provided with a second positioning hole 332, and one end of the key 32 facing the circuit board 33 is convexly provided with a second positioning column 322, and the second positioning column 322 is inserted into the second positioning hole 332 and is in clearance fit with the second positioning hole 332, so that the movement allowance of the key 32 is ensured and the swing accuracy of the key 32 is improved.

In some embodiments of the present invention, the outer contour of the second positioning post 322 is matched with the outer contour of the second positioning hole 332.

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

the through hole 1a is formed in the casing 1, the back plate 2 is accommodated in the casing 1, the key assembly 3 comprises a key support 31 and a key 32, the key support 31 is provided with a supporting surface 31a and a matching surface 31b, the supporting surface 31a is attached to and supported on the surface of the back plate 2, an included angle is formed between the matching surface 31b and the supporting surface 31a, and the matching surface 31b is attached to and matched with the inner wall of the casing 1, so that the key support 31 obliquely faces the inner wall of the casing 1 from the surface of the back plate 2, the key support 31 can fully utilize the space between the casing 1 and the back plate 2, and the whole thickness of the display device 100 is effectively reduced. In addition, the key holder 31 is attached to the inner wall of the casing 1 on the premise of making full use of the space between the casing 1 and the back panel 2, so that a housing for housing the key assembly 3 is prevented from being provided outside the casing 1, and the appearance effect of the display device 100 is improved.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention 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

1. A display device, comprising:

a housing having a through hole formed therein;

a back plate accommodated within the housing;

the key assembly comprises a key support, a circuit board and keys; the key support is provided with a supporting surface and a matching surface, and the supporting surface is attached to and supported on the surface of the back plate; an included angle is formed between the matching surface and the supporting surface, and the matching surface is matched with the inner wall of the shell in an opposite mode; the circuit board is accommodated in the key support; the key is movably arranged in the key support and is opposite to the circuit board; the key protrudes out of the matching surface and penetrates out of the through hole;

the key support includes: the platform part, its one surface forms the said mating surface, its surface of both ends back to the said mating surface has first supporting part and second supporting part separately to protrude, the terminal surface of the first supporting part and terminal surface of the said second supporting part are on the identity level and form the said bearing surface; the height of the first supporting part and the height of the second supporting part have a height difference.

2. The display device of claim 1, wherein the key holder further comprises:

the cover part is convexly arranged on the matching surface of the platform part; the cover casing part penetrates out of the through hole; the housing is provided with a via hole which is in clearance fit with the key.

3. The display device of claim 2, wherein the back plate is provided with a snap hole;

and a buckle is convexly arranged on one side of the first supporting part and is buckled and connected with the buckle hole.

4. The display device of claim 3, wherein the back plate is provided with a first positioning hole;

the side surface of the first supporting part facing the buckle is convexly provided with a first positioning column which is spaced from the buckle; the first positioning column is connected with the first positioning hole in a positioning mode.

5. The display device of claim 3, wherein the back plate is provided with a latch hole;

one side of the second supporting part is convexly provided with an inserting tongue, and the inserting tongue and the buckle are arranged in a back-to-back manner; the inserting tongue is connected with the inserting tongue hole in a buckling mode.

6. The display device according to claim 2, wherein a surface of the terrace portion facing away from the cover portion is provided with a receiving groove communicating with the via hole;

the circuit board is accommodated in the accommodating groove; the circuit board is provided with a swinging rocker, and the swinging rocker is arranged relative to the via hole and is fixedly connected with the key.

7. The display device as claimed in claim 6, wherein the inner sidewall of the receiving groove is convexly provided with a latch plate;

the surface of the circuit board is attached to the bottom wall of the accommodating groove; one end of the circuit board is connected with the clamping plate in a clamping manner.

8. The display device as claimed in claim 6, wherein the inner sidewall of the accommodating groove is convexly provided with a plurality of opposite limiting ribs;

and two side surfaces of the circuit board are respectively abutted against the corresponding limiting ribs.

9. The display device according to claim 2, wherein a fixing seat is provided on the platform portion, the fixing seat being provided on an outer side of the cover portion;

the circuit board is fixedly connected with the fixed seat.

10. The display device according to claim 2, wherein an avoiding groove is formed in an outer peripheral surface of the key, and an inner wall of the avoiding groove is spaced from an inner wall of the via hole.

11. The display device of claim 1, wherein the circuit board is provided with a second positioning hole;

and a second positioning column is convexly arranged at one end of the key, which faces the circuit board, and is inserted into the second positioning hole and in clearance fit with the second positioning hole.