WO2022193140A1

WO2022193140A1 - Display device

Info

Publication number: WO2022193140A1
Application number: PCT/CN2021/081121
Authority: WO
Inventors: 贺武林; 白杨; 张宏利
Original assignee: 深圳市艾比森光电股份有限公司
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2022-09-22

Abstract

The present application discloses a display device, comprising a box (10), a display module (20), and a magnetic attraction structure (30). The magnetic attraction structure (30) comprises a first magnetic member (31) disposed on the display module (20) and a second magnetic member (32) disposed on the box (10); the first magnetic member (31) and the second magnetic member (32) are mutually attracted to fix the display module (20) on the box (10); the display module (20) comprises a PCB (21) and a bottom case (22) that are sealingly connected in an up-down direction; and a blind hole for accommodating the first magnetic member (31) is formed in the surface of the bottom case (22) facing the PCB (21).

Description

display device

technical field

The present application relates to the field of display technology, and in particular, to a display device.

Background technique

The display device includes a box body and a display module fixed on the box body. In the existing design, the display module and the box are fixed by screwing or clamping. The screw connection method requires punching holes in the display module, which destroys the structural integrity of the display module, and is not conducive to waterproofing the interior of the display module. The structure of the clip fixing method is more complicated. In addition, during maintenance, the display module and the box need to be disassembled, and there is a problem of inconvenient disassembly by using the connection method of screwing or clipping.

technical problem

One of the purposes of the embodiments of the present application is to provide another connection method between the display module and the box, so as to ensure the structural integrity of the display module and improve the convenience of loading and unloading.

technical solutions

In order to solve the above-mentioned technical problems, the technical solutions adopted in the embodiments of the present application are:

A display device includes a box body, a display module, and a magnetic attraction structure, wherein the magnetic attraction structure includes a first magnetic piece arranged on the display module and a second magnetic piece arranged on the box body, the The first magnetic piece attracts the second magnetic piece to fix the display module on the box body;

The display module includes a PCB board and a bottom case that are sealed and connected up and down, and a surface of the bottom case facing the PCB board is provided with a blind hole for accommodating the first magnetic component.

Optionally, the first magnetic member includes an iron case and a magnetic block, and a surface of the iron case facing the bottom case is provided with an accommodating hole for accommodating the magnetic block.

Optionally, the magnet block is placed in the accommodating hole and abuts against the bottom of the blind hole.

Optionally, the iron shell includes a panel located on the upper surface of the magnet block and a shroud disposed around the periphery of the magnet block, the panel has a brim protruding from the shroud.

Optionally, the thickness of the bottom case at the blind hole is 0.35-0.6 mm.

Optionally, a locking member is provided on the bottom case, and the locking member restricts the first magnetic member from leaving the blind hole.

Optionally, the locking member is a screw, the locking member is screwed with the bottom case, and the nut of the locking member is pressed against the first magnetic member to restrict the first magnetic member from leaving the blind hole.

Optionally, the edge of the first magnetic member is provided with an escape hole for avoiding the stud of the locking member.

Optionally, the bottom case is provided with a positioning groove, and the box body is provided with a positioning member correspondingly at the positioning groove. When the positioning member is placed in the positioning groove, the first magnetic member and the The second magnetic member is disposed opposite to each other.

Optionally, the positioning member is integrally provided with the second magnetic member.

Optionally, the second magnetic member is a screw and is screwed to the box body.

In the display device provided by the embodiment of the present application, the display module and the box are fixedly connected through the cooperative arrangement of the first magnetic member and the second magnetic member, which can improve the convenience of assembling and disassembling the display module and the box. The first magnetic element is placed inside the display module to avoid being exposed and easy to rust. The display module and the box are connected by a magnetic attraction structure. Compared with the general screw connection method, the structural integrity of the display module can be guaranteed because there is no need to open holes on the display module, and it is beneficial to the connection between the PCB board and the bottom case. Water tightness. Compared with the snap connection between the display module and the box, the structure can be simplified.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or exemplary technologies. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a disassembled schematic diagram 1 of a display device according to an embodiment of the present application;

FIG. 2 is a second disassembled schematic diagram of the display device according to the embodiment of the application;

3 is a cross-sectional view of a display device at a magnetic attraction structure according to an embodiment of the present application;

Fig. 4 is an enlarged view of part A in Fig. 3;

FIG. 5 is a schematic structural diagram of a first magnetic member in an embodiment of the present application.

Among them, each reference sign in the figure:

10. Box body; 20. Display module; 21. PCB board; 22. Bottom case; 201. Cavity; 202. Positioning slot; 30. Magnetic attraction structure; 31. First magnetic part; 32, the second magnetic piece; 301, the avoidance hole; 41, the locking piece.

Embodiments of the present invention

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description, rather than indicating or implying the referred device Or the elements must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be construed as a limitation to the present application, and those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations. The terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance or implying indicating the number of technical features. "Plurality" means two or more, unless expressly specifically limited otherwise.

Referring to FIG. 1 to FIG. 5 , an exemplary description of the display device provided by itself will now be given. The display device includes a box body 10 , a display module 20 and a magnetic attraction structure 30 . The magnetic attraction structure 30 includes a first magnetic element 31 arranged on the display module 20 and a second magnetic element 32 arranged in the box body 10 . The component 31 attracts the second magnetic component 32 to fix the display module 20 on the box body 10 .

A display device includes a box body 10 and at least one display module 20 . Each display module 20 is fixed on the box body 10 by the magnetic attraction structure 30 . In the structure shown in FIG. 1 , one box body 10 corresponds to four display modules 20 . In other embodiments, the number ratio of the box body 10 to the display modules 20 may also be 1:1, 1:6, 1:9 , 1:16, etc., the display modules 20 are arranged in rows and columns.

It can be understood that the first magnetic member 31 and the second magnetic member 32 are arranged in pairs, and a magnetic attraction structure 30 includes a first magnetic member 31 and a second magnetic member 32 . Any display module 20 can be fixed on the box body 10 by at least one magnetic attraction structure 30 . Those skilled in the art can set the number and position of the magnetic attraction structures 30 according to actual needs, which are not limited herein.

A detachable and fixed connection is realized between the box body 10 and the display module 20 through the magnetic attraction structure 30 . The mutual attraction of the first magnetic member 31 and the second magnetic member 32 provides a resistance to prevent the box body 10 and the display module 20 from deviating from each other, so as to realize the relative fixation of the box body 10 and the display module 20 . When maintenance is required, the surface of the display module 20 is adsorbed by a vacuum suction tool, and a force away from the box body 10 is applied. When the force is greater than the magnetic force of the magnetic attraction structure 30, the display module 20 and the box body 10 are separated. .

In this embodiment, the display module 20 includes a PCB board 21 and a bottom case 22 which are sealed up and down. The bottom case 22 is provided with a blind hole for accommodating the first magnetic member 31 on the surface of the bottom case 22 facing the PCB board 21 .

The PCB board 21 is sealed with the casing, and a closed cavity 201 is formed inside. The bottom case 22 is provided with a blind hole in the lower cavity wall of the cavity 201 , and the first magnetic member 31 is fixed in the blind hole, so as to avoid the situation that the first magnetic member 31 is exposed and easily rusted.

In actual assembly, the first magnetic member 31 is placed downward into the blind hole of the bottom case 22 , and then the PCB board 21 is assembled on the bottom case 22 , and sealed with glue. The PCB board 21 and the bottom case 22 may also adopt other sealing methods, which are not limited herein.

From the above, in the display device provided in this embodiment, a fixed connection between the display module 20 and the box body 10 is realized through the matching arrangement of the first magnetic member 31 and the second magnetic member 32, which can improve the display module 20 and the box body 10. Ease of loading and unloading. The first magnetic member 31 is placed inside the display module 20 to avoid being exposed and easily rusted. The display module 20 and the box body 10 are connected by the magnetic attraction structure 30. Compared with the general screw connection method, the structural integrity of the display module 20 can be guaranteed because there is no need to open holes on the display module 20, and it is beneficial to the PCB board. 21 and the watertightness of the bottom shell 22 connection. Compared with the snap connection between the display module 20 and the box body 10 , the structure can be simplified.

In another embodiment of the present application, please refer to FIG. 4 and FIG. 5 , the first magnetic member 31 includes an iron shell 311 and a magnetic block 312 , and a surface of the iron shell 311 facing the bottom case 22 is provided with a container for accommodating the magnetic block 312 hole. In the structure shown in FIG. 5 , the magnetic block 312 is in the shape of a cylinder extending up and down. In other embodiments, the magnetic block 312 can also be in a square or other shape, which is not limited herein. The accommodating hole is arranged in cooperation with the magnetic block 312 . The lower surface of the magnet block 312 is the magnetic attraction surface acting on the second magnetic member 32 , and the other surfaces (non-acting surfaces) are covered by the iron shell 311 . The iron shell 311 is a ferrous part, and plays the role of isolating the non-active surface of the magnet block 312 from other structures to achieve the effect of magnetic shielding, thereby reducing the magnetization of the surrounding structures of the magnet block 312 , especially the upper structure. In addition, the iron shell 311 can act as an air magnetic flux loop, effectively shortening the distance of the magnetic flux loop, reducing the loss of the magnetic flux loop, and further enhancing the magnetic force of the magnetic block 312 to the second magnetic member 32 .

In the structure shown in FIG. 5 , the iron shell 311 includes a panel located on the upper surface of the magnet block 312 and a shroud surrounding the magnet block 312 , and the panel has a brim protruding from the shroud. This arrangement can facilitate the operator to distinguish the position of the magnetic attraction surface of the first magnetic member 31, thereby improving the assembly efficiency of placing the first magnetic member 31 in the blind hole.

In another embodiment of the present application, please refer to FIG. 4 , the magnetic block 312 is placed in the accommodating hole and abuts against the bottom of the blind hole. The magnetic block 312 abuts against the bottom of the blind hole to reduce the distance between the magnetic block 312 and the second magnetic member 32 , so as to improve the connection tightness of the box body 10 and the display module 20 .

In another embodiment of the present application, the thickness of the bottom case 22 at the blind hole is 0.35-0.6 mm. It can be understood that by appropriately reducing the thickness of the bottom case 22 at the blind hole, the distance between the first magnetic member 31 and the second magnetic member 32 can be reduced, and the adsorption of the first magnetic member 31 and the second magnetic member 32 can be improved. It can improve the connection tightness of the box body 10 and the display module 20 . Those skilled in the art can further set the thickness of the bottom case 22 at the blind hole to 0.35mm, 0.38mm, 0.40mm, 0.42mm, 0.45mm, 0.46mm, 0.48mm, 0.5mm, 0.52mm, 0.53mm, 0.55mm mm, 0.56mm, 0.58mm, 0.60mm, etc., are not limited here.

In this embodiment, the first magnetic member 31 is placed in the blind hole and is fixedly connected with the bottom case 22 to prevent the first magnetic member 31 from shaking in the display module 20 . The first magnetic member 31 can be fixed in the blind hole by glue sealing, or screwed to the bottom case 22 by screws.

In another embodiment of the present application, the bottom case 22 is provided with a locking member 41, and the locking member 41 restricts the first magnetic member 31 from leaving the blind hole. The locking member 41 is disposed on the bottom case 22 and presses against the first magnetic member 31 to restrict the first magnetic member 31 from leaving the blind hole.

In one embodiment, the locking member 41 is rotatably connected with the bottom case 22, and enters or leaves above the blind hole through rotation. When the locking member 41 rotates above the blind hole, the first magnetic member 31 is pressed against the first magnetic member 31 to restrict the first magnetic member 31 from leaving the blind hole, so that the first magnetic member 31 and the bottom case 22 are relatively fixed.

In the structure shown in FIG. 4 , the locking member 41 is a screw, the locking member 41 is screwed with the bottom case 22 , and the nut of the locking member 41 is pressed against the first magnetic member 31 (specifically, pressed against the upper part of the iron shell 311 ). surface) to restrict the first magnetic member 31 from leaving the blind hole. The bottom case 22 is provided with a screw hole for matching with the locking member 41 . The stud of the locking member 41 is screwed with the screwing hole, and the nut is pressed against the upper surface of the iron shell 311 . The locking member 41 adopts a screw structure, which can simplify the structure and design.

Preferably, the edge of the first magnetic member 31 is provided with an escape hole 301 for avoiding the stud of the locking member 41 . In the structure shown in FIG. 5 , the escape hole 301 is opened at the brim of the iron shell 311 . The locking member 41 is screwed to the bottom case 22 through the avoidance hole 301 . The arrangement of the avoidance hole 301 provides positioning for the assembly of the first screw connection. The locking member 41 passes through the avoidance hole 301 to limit the rotational freedom of the first magnetic member 31 in the blind hole.

In another embodiment of the present application, please refer to FIG. 2 and FIG. 4 , the second magnetic member 32 is a screw and is screwed to the box body 10 . The second magnetic member 32 is made of ferrous material. The screw made of the existing carbon steel (iron) material can meet the use requirements of the second magnetic member 32 . The second magnetic member 32 adopts a screw structure and is directly screwed with the box body 10 to simplify the structure. It can be understood that the second magnetic member 32 may also adopt other structural forms, which are not limited herein. In this embodiment, the second magnetic member 32 is screwed to the box body 10 . In other embodiments, the second magnetic member 32 can also be built into the box body 10 or fixed on the box body 10 by other connection methods. Not uniquely limited.

In another embodiment of the present application, the bottom case 22 is provided with a positioning groove 202 , and the box body 10 is provided with a positioning member corresponding to the positioning groove 202 . When the positioning member is placed in the positioning groove 202 , the first magnetic member 31 and the second magnetic member The magnetic member 32 is disposed opposite to each other. The positioning members and the positioning grooves 202 provide positioning for the box body 10 and the display module 20 to facilitate assembly.

Preferably, please refer to FIG. 4 , the positioning member and the second magnetic member 32 are integrally arranged. In other words, the second magnetic member 32 also performs the function of the positioning member. This arrangement can simplify the structure. A positioning slot 202 is defined on the bottom surface of the bottom case 22 opposite to the blind hole. When the display module 20 is connected to the box body 10 , the second magnetic member 32 is inserted into the positioning slot 202 .

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

A display device is characterized in that it comprises a box body, a display module and a magnetic attraction structure, wherein the magnetic attraction structure comprises a first magnetic member arranged in the display module and a second magnetic element arranged in the box body the first magnetic part attracts the second magnetic part so that the display module is fixed on the box body;

The display module includes a PCB board and a bottom case that are sealed and connected up and down, and a surface of the bottom case facing the PCB board is provided with a blind hole for accommodating the first magnetic component.
The display device according to claim 1, wherein the first magnetic member comprises an iron case and a magnetic block, and a surface of the iron case facing the bottom case is provided with an accommodating hole for accommodating the magnetic block .
The display device according to claim 2, wherein the magnetic block is placed in the accommodating hole and abuts against the bottom of the blind hole.
3. The display device according to claim 2, wherein the iron shell comprises a panel located on the upper surface of the magnet block and a surrounding plate arranged around the periphery of the magnet block, the panel has a protruding surface protruding from the magnet block. The brim of the hoarding.
The display device according to any one of claims 1 to 4, wherein the thickness of the bottom case at the blind hole is 0.35-0.6 mm.
The display device according to any one of claims 1 to 4, wherein a locking member is provided on the bottom case, and the locking member restricts the first magnetic member from leaving the blind hole.
The display device according to claim 6, wherein the locking member is a screw, the locking member is screwed with the bottom case, and the nut of the locking member is pressed against the first magnetic The first magnetic element is restricted from leaving the blind hole.
8. The display device according to claim 7, wherein the edge of the first magnetic member is provided with an escape hole for avoiding the stud of the locking member.
The display device according to any one of claims 1 to 4, wherein the bottom case is provided with a positioning groove, and the box body is provided with a positioning member corresponding to the positioning groove, and the positioning member is placed in the positioning member. When the positioning groove is used, the first magnetic member and the second magnetic member are disposed facing each other.
The display device according to claim 9, wherein the positioning member and the second magnetic member are integrally provided.
The display device according to any one of claims 1 to 4, wherein the second magnetic member is a screw and is screwed to the box body.