CN215910837U

CN215910837U - Frame, face frame subassembly and mutual dull and stereotyped

Info

Publication number: CN215910837U
Application number: CN202121490599.3U
Authority: CN
Inventors: 廖金海
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-25
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a frame, a face frame assembly and an interactive flat plate, wherein the frame comprises a metal frame part; the plastic frame part is integrally formed with the metal frame part and surrounds the metal frame part to form an inner cavity, and the inner cavity provides an infrared touch frame mounting space; the plastic frame part comprises a first limiting part, the first limiting part comprises a first limiting surface facing the rear side of the thickness direction of the frame, and the first limiting surface is used for installing a touch panel; the plastic frame part also comprises a light filtering part for filtering infrared light; in the thickness direction of the frame, the light filtering part is positioned on the front side of the first limiting part; the face frame assembly comprises the frame and an infrared touch frame arranged in the inner cavity; the interactive flat panel comprises the face frame assembly and a touch panel; the metal frame part and the plastic frame part of the frame are integrally formed, the frame has the characteristics of rigidity, light filtering and mounting buffer protection, and is strong in integrity, capable of avoiding gaps and section differences, capable of reducing processing procedures and reducing processing cost and attractive in appearance.

Description

Frame, face frame subassembly and mutual dull and stereotyped

Technical Field

The utility model relates to the technical field of display equipment, in particular to a frame, a face frame assembly and an interactive flat plate.

Background

An infrared touch screen, i.e. an infrared touch screen, is a touch display terminal composed of an infrared emitting element and an infrared receiving and sensing element installed in a frame of the touch screen, and these elements form an infrared detection network on the screen surface, so that an object (such as a finger) in touch operation can change the infrared ray of a contact point and then be converted into a touch position to realize the response of the operation.

The interactive flat plate with the infrared touch function generally comprises a metal frame, an infrared filter strip clamped with the metal frame and glass arranged on the inner side of the metal frame; the infrared filter strip plays a role in filtering infrared rays.

In the existing interactive flat plate, the front side of glass is supported in a limiting mode through a metal frame, mutual movement can occur between the glass and the metal frame to generate friction in the transportation process, the surface of the glass is easily scratched and broken by impact, and after-sale maintenance cost is high. In order to protect the glass, a buffer medium (such as silica gel, foam, etc.) is generally required to be additionally arranged between the glass and the metal frame, so that the interaction flat plate has too many materials, low assembly efficiency and high cost.

In addition, when the existing interactive flat plate is assembled, the light filtering strip and the metal frame need to be assembled, so that the assembly efficiency is low, and the problems of appearance gaps, poor section difference and the like easily occur when the two components are matched.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the embodiment of the utility model is as follows: provided is a frame which has rigidity, filtering characteristic and buffering characteristic, simple structure, low processing cost and strong integrity.

The second purpose of the embodiment of the utility model is: the utility model provides a face frame subassembly, its frame has multiple functions concurrently, simple structure, and the processing cost is low, and the wholeness is strong.

The third purpose of the embodiment of the utility model is that: the utility model provides an interactive flat board need not to add buffering auxiliary material at touch panel and frame support during the assembly, reduces the process, reduces manufacturing cost.

In order to achieve one of the purposes, the utility model adopts the following technical scheme:

a bezel, comprising:

a metal frame portion;

the plastic frame part is integrally formed with the metal frame part and surrounds the metal frame part to form an inner cavity, and the inner cavity provides an infrared touch frame mounting space; the plastic frame part comprises a first limiting part, the first limiting part comprises a first limiting surface facing the rear side of the thickness direction of the frame, and the first limiting surface is used for installing a touch panel; the plastic frame part also comprises a light filtering part for filtering infrared light; in the frame thickness direction, the light-filtering part is located on the front side of the first limiting part.

In order to achieve the second purpose, the utility model adopts the following technical scheme:

a face frame assembly comprises the frame according to the scheme above and an infrared touch frame;

the infrared touch frame comprises an infrared PCB and a red transceiving element electrically connected with the infrared PCB; the metal frame part comprises a clamping groove formed in the inner cavity, the infrared PCB is clamped with the clamping groove, and the infrared receiving and transmitting element faces the optical filtering part to send or receive infrared signals

In order to achieve the third purpose, the utility model adopts the following technical scheme:

an interactive tablet comprising a face frame assembly as described above, and a touch panel; the bezel surrounds the periphery of the touch panel; the face frame assembly further comprises a fixing part, and the touch panel is clamped between the fixing part and the first limiting part.

The utility model has the beneficial effects that: the frame is integrally formed with the plastic frame part through the metal frame part, the metal frame part ensures the rigidity of the frame, the plastic frame part meets the filtering requirement, the installation requirement of the touch panel and the buffering protection requirement of the touch panel, the structure is simple, the integrity is strong, the processing procedures are reduced, the processing cost is reduced, and the problems of gaps and section difference generated when the filtering component is assembled with the frame body can be avoided;

the frame adopted by the face frame assembly can meet various requirements, the structure is simple, and the waterproof performance of the infrared touch frame is better;

this mutual dull and stereotyped, touch panel need not to install buffer material such as bubble cotton when installing in the frame, reduces manufacturing procedure, reduces the processing cost, and the outward appearance is more pleasing to the eye.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

Fig. 1 is a schematic structural diagram of a frame according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of an assembly of the bezel and the touch panel during application of the embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a face frame assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of the assembly of the bezel assembly with a touch panel in use according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an interactive tablet according to an embodiment of the present invention;

FIG. 7 is a second schematic structural diagram of an interactive tablet according to the embodiment of the present invention;

fig. 8 is a third schematic structural diagram of an interactive tablet according to the embodiment of the present invention;

in the figure: 10. a frame; 101. an inner cavity; 11. a metal frame portion; 1101. a card slot; 111. a front plate portion; 112. an outer plate portion; 113. a rear plate portion; 114. an inner plate portion; 12. a plastic frame part; 121. a light filter portion; 122. a first limiting part; 1221. a first limiting surface; 123. a second limiting part; 1231. a second limiting surface; 124. a third limiting part; 20. a touch frame; 21. an infrared PCB; 22. an infrared transceiver element; 30. a touch panel; 31. an anterior surface; 40. and fixing the bracket.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" are to be understood broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

It should be noted that, in the present invention, for the bezel 10, the bezel assembly and the interactive flat panel, a direction close to the center of the touch panel 30 is an inner side of each component, i.e. an "inner" direction indicated by an arrow in the drawing, and a direction away from the center of the touch panel 30 is an outer side of each component, i.e. an "outer" direction indicated by an arrow in the drawing; when the face frame assembly and the interactive tablet are used by a user, the touch panel 30 faces the user, the side facing the user is the front side, i.e. the direction of the arrow in the figure, "front", and the side facing away from the user is the back side, i.e. the direction of the arrow in the figure, "back".

The utility model provides a frame 10, a metal frame part 11 and a plastic frame part 12 are integrally formed; the single frame 10 can meet rigidity requirements through the metal frame portion 11, infrared filtering requirements through the filtering portion 121 of the plastic frame portion 12, and installation and buffering protection functions of the touch panel 30 through the limiting portion of the plastic frame portion 12.

As shown in fig. 1 to 8, in an embodiment of the frame 10 of the present invention, the frame 10 includes a metal frame portion 11 and a plastic frame portion 12, wherein the metal frame portion 11 and the plastic frame portion 12 are integrally formed; the metal frame portion 11 and the plastic frame portion 12 enclose to form an inner cavity 101, and the inner cavity 101 provides an installation space for installing the infrared touch frame 20 (i.e., an infrared touch sensing component);

the plastic frame 12 includes a first position-limiting portion 122; the first position-limiting portion 122 includes a first position-limiting surface 1221, the first position-limiting surface 1221 faces the rear side direction in the thickness direction of the bezel 10, and the first position-limiting surface 1221 is used for mounting the touch panel 30; when the touch panel 30 is mounted, the degree of freedom of forward movement of the touch panel 30 in the thickness direction is limited by the first stopper surface 1221;

the plastic frame portion 12 further includes a filter portion 121, and the filter portion 121 is configured to: infrared light can be filtered; in the thickness direction of the frame 10, the filter part 121 is located at the front side of the first position-limiting part 122; that is, the filter portion 121 is located on a side of the first position-limiting portion 122 away from the first position-limiting surface 1221.

The metal frame portion 11 and the plastic frame portion 12 are integrally formed by processing a metal material and a plastic material in the same mold.

When the bezel 10 is applied to an interactive flat panel, the first position-limiting portion 122 of the bezel 10 presses the front surface 31 of the touch panel 30, and the optical filter 121 is located at the front side of the touch panel 30, so that infrared rays can pass through the optical filter 121 to enter or exit the inner cavity 101 of the bezel 10, and an infrared sensing net is formed at the front side of the touch panel 30.

The frame 10 of the present invention is integrally formed of different materials, and is made of a metal material at a portion where rigidity is required, a plastic material at a portion where the touch panel 30 is required, and a plastic material having a light filtering property at a portion where light transmission and light filtering are required.

In this embodiment, the requirements for rigidity and strength of the bezel 10 are met by the metal frame portion 11, the requirement for infrared ray filtering is met by the filter portion 121 of the plastic frame portion 12, and the requirement for installation of the touch panel 30 is met by the first stopper portion 122 of the plastic frame portion 12. When the touch panel 30 is mounted, the first stopper surface 1221 abuts against the touch panel 30 to limit the position of the touch panel 30, and since the first stopper portion 122 is formed by molding a plastic material, the hardness of the plastic frame portion 12 is lower than that of the metal frame portion 11, and even if the touch panel 30 moves relative to the plastic frame portion 12, the first stopper portion 122 does not scratch or damage the touch panel 30, and therefore, the first stopper portion 122 of the plastic frame portion 12 functions to limit the relative position of the touch panel 30 and protect the touch panel 30.

When the frame 10 is applied to an interactive flat panel, the buffer material between the touch panel 30 and the frame 10 can be eliminated; the light filtering part 121 and the frame rigid part (the metal frame part 11) are integrally formed, so that the step of installing the light filtering strip is eliminated, and gaps and connection section differences between the light filtering strip and the frame are avoided; therefore, the infrared display with the frame 10 can reduce materials, reduce assembly steps and processing cost, and the frame 10 has good appearance and stronger integrity.

In one embodiment, the plastic substrate is mixed with a special dye to form a plastic mixture, and the plastic mixture is molded to form the filter 121 that allows only infrared light to pass through. The filter element 121 has the same filter principle as a conventional filter.

The dye added to the plastic base material is not particularly limited in the present invention, as long as the infrared filtering function of the filtering portion 121 of the plastic frame portion 12 can be achieved. In some embodiments, the dye may be a toner.

In one embodiment, the plastic substrate of the optical filter portion 121 is a PC material, and the PC material is light-permeable.

In other embodiments, the plastic substrate of the filter portion 121 may be made of other transparent materials.

In an embodiment, the plastic frame portion 12 further includes a second position-limiting portion 123, the second position-limiting portion 123 includes a second position-limiting surface 1231, and the orientation of the second position-limiting surface 1231 is an inner direction of the width direction of the frame 10; the second position-limiting portion 123, the first position-limiting portion 122 and the optical filter portion 121 are sequentially connected, that is, the second position-limiting portion 123 is connected to one side of the first position-limiting portion 122 away from the optical filter portion 121; the first limiting surface 1221 and the second limiting surface 1231 are connected to form a limiting groove, and the limiting groove is used for installing the touch panel 30.

When the bezel 10 is applied to an interactive tablet, the touch panel 30 is mounted in the limiting groove, the first limiting portion 122 is located at the front side of the touch panel 30, and the second limiting portion 123 is located at the outer peripheral side of the touch panel 30, so as to limit the degree of freedom of the touch panel 30 in moving forward and moving outward.

In this embodiment, the shape of the plastic frame portion 12 is designed to form a limiting groove between the first limiting portion 122 and the second limiting portion 123, so that the front surface 31 and the outer peripheral surface of the touch panel 30 can be limited, and the first limiting portion 122 and the second limiting portion 123 are made of plastic material, so that the hardness is relatively low, and the touch panel 30 is not damaged.

In this embodiment, the dimension of the second position-limiting portion 123 in the thickness direction of the frame 10 is greater than or equal to the thickness of the touch panel 30, so as to ensure that the outer periphery of the touch panel 30 is the second position-limiting portion 123 made of plastic material.

In one embodiment, the plastic frame 12 and the metal frame 11 are integrally formed by a co-extrusion molding process; the frame 10 is manufactured by adopting a common extrusion molding process, the frame 10 with the same cross section can be continuously extruded, the frame 10 can be further processed by cutting or bending according to actual requirements, and the processing efficiency is high.

In one embodiment, for the frame 10 formed by the co-extrusion process, the material of the entire plastic frame portion 12 is the same for the convenience of manufacturing and for ensuring the reliability of the plastic frame portion 12; therefore, when the same frame 10 is subjected to extrusion molding, materials of the least variety are used, and the extrusion molding processing is more convenient; moreover, the color of the whole plastic frame part 12 can be ensured to be the same, and the consistency of the appearance color can be ensured.

If the plastic frame portion 12 is processed by co-extruding different plastic materials, the shrinkage rates of the different materials are likely to be different, it is not easy to control various parameters (such as extrusion speed) during extrusion molding, and if the parameters are not properly adjusted, the joint of the two plastic materials has large shrinkage stress and is likely to crack after the plastic frame portion 12 is molded.

In the structure of the plastic frame 12 including the first position-limiting portion 122, the second position-limiting portion 123 and the optical filter portion 121, the first position-limiting portion 122, the second position-limiting portion 123 and the optical filter portion 121 are made of the same material, and the material is formed by mixing a plastic substrate and a dyeing material.

In one embodiment, the metal frame 11 is made of aluminum alloy.

In other embodiments, the material of the metal frame portion 11 may be other alloy materials or pure metal materials suitable for extrusion molding.

In an embodiment, since the hardness of the plastic material is lower than that of the metal material, and when the frame 10 is applied to an interactive flat board, the front side of the frame 10 faces a user, and the front side of the frame 10 is easily knocked by an external object, in order to protect the plastic frame portion 12, the frame 10 is configured as: the front surface 31 of the frame 10 is a surface of the metal frame portion 11.

In this embodiment, the metal frame portion 11 includes a front plate portion 111, and the front plate portion 111, the filter portion 121, and the first limiting portion 122 are connected in sequence; the filter portion 121 is located on the rear side of the front plate portion 111 in the thickness direction of the bezel 10; in this way, the plastic frame 12 can be reliably protected by the front plate 111 made of a metal material located on the front side.

In one embodiment, in order to reasonably design the shape of the frame 10 and the distribution positions of different materials, so that the frame 10 has rigidity, filtering characteristics and installation buffering characteristics, the frame 10 is configured as follows:

the metal frame portion 11 includes an inner plate portion 114, a rear plate portion 113, an outer plate portion 112, and a front plate portion 111; the front plate portion 111, the filter portion 121, the first stopper portion 122, the second stopper portion 123, the inner plate portion 114, the rear plate portion 113, the outer plate portion 112, and the front plate portion 111 are connected in sequence to enclose the cavity 101.

In this embodiment, the front plate portion 111 and the rear plate portion 113 are located on opposite sides in the thickness direction of the frame 10, and the inner plate portion 114 and the outer plate portion 112 are located on opposite sides in the width direction of the frame 10; the plastic frame 12 is located inside the frame 10 in the width direction.

The utility model also provides a face frame assembly, the adopted frame 10 can meet various requirements, the structure is simple, and the waterproof performance of the infrared touch frame 20 is better.

As shown in fig. 1 to 8, in an embodiment of the face frame assembly of the present invention, the face frame assembly includes the bezel 10 of any of the above embodiments, and further includes an infrared touch frame 20;

the infrared touch frame 20 comprises an infrared PCB21, and an infrared transceiving element 22 electrically connected with an infrared PCB 21; the metal frame portion 11 includes a card slot 1101 formed in the inner cavity 101, the infrared PCB21 is connected to the card slot 1101, and the infrared transceiver 22 faces the optical filter portion 121 to send or receive infrared signals.

In this embodiment, since the frame 10 has a strong integrity, and the rigid supporting portion of the frame 10 and the light-filtering portion 121 are integrally formed without a gap, the frame 10 has a strong waterproof property, so as to prevent moisture from entering the inner cavity 101 through the gap to corrode the infrared touch frame 20, and the infrared touch function is reliable.

In this embodiment, the infrared transceiver 22 is an infrared transmitter or an infrared receiver.

The working principle of the infrared touch frame 20 is as follows: the infrared PCB21 drives the infrared emission element to emit infrared rays which penetrate through the filter strip at the emission end and emit to the receiving component correspondingly arranged with the infrared emission element, so that the infrared rays penetrate through the filter strip at the corresponding receiving end and then emit to the infrared receiving element, the infrared receiving element transmits the received infrared signals to the receiving infrared PCB21, and the transmission of the infrared signals is realized.

The utility model also provides an interactive flat plate, wherein the metal frame part 11 and the plastic frame part 12 on the frame 10 are integrally formed, and when the touch panel 30 is installed on the frame 10, no buffer materials such as foam and the like need to be installed, so that the processing procedures are reduced, the processing cost is reduced, and the appearance is more attractive.

As shown in fig. 1-8, in an embodiment of the interactive tablet of the present invention, the interactive tablet includes the face frame assembly of the above-mentioned embodiment, and further includes a touch panel 30; the bezel 10 surrounds the periphery of the touch panel 30, and the bezel 10 limits the degree of freedom of the touch panel 30 to move to the outside;

the face frame assembly further includes a fixing member, and the touch panel 30 is interposed between the fixing member and the first position limiting portion 122, so as to limit the relative position of the touch panel 30.

The interactive flat plate of this embodiment, through the technology that metal material and plastic material supplied with, divide outer frame 10 into different positions according to the atress in different positions, printing opacity and buffering characteristic, the position of function difference is realized through metal frame portion 11 and plastic frame portion 12 integrated into one piece's mode, cancel various auxiliary materials such as buffering bubble cotton, independent light filtering strip in traditional interactive flat plate, reduce manufacturing procedure by a wide margin, reduce the processing cost, and extrude fashioned frame 10's an organic whole nature jointly well, there is not outward appearance crack, the segment difference between the different positions, the outward appearance is pleasing to the eye, frame 10 inner chamber 101 is difficult to intake water and goes into the ash.

In an embodiment, as shown in fig. 8, the fixing component may be a fixing bracket 40 separated from the frame 10, one end of the fixing bracket 40 is fixed to the frame 10 by a fastener such as a screw, and the other end of the fixing bracket 40 is a fixing portion. In this embodiment, the first position-limiting portion 122 limits the degree of freedom of forward movement of the touch panel 30, the second position-limiting portion 123 limits the degree of freedom of outward movement of the touch panel 30, and the third position-limiting portion 124 limits the degree of freedom of sequential movement of the touch panel 30.

In another embodiment, as shown in fig. 7, the plastic frame 12 further includes a second position-limiting portion 123 and a third position-limiting portion 124, a U-shaped slot 1101 is defined by the first position-limiting portion 122, the second position-limiting portion 123 and the third position-limiting portion 124, and the fixing portion is the third position-limiting portion 124.

In other embodiments, the fixing portion may be configured in other manners as long as the fixing portion can cooperate with the first position-limiting portion 122 to limit the degree of freedom of the forward and backward movement of the touch panel 30.

In one embodiment, the frame 10 includes a plurality of frame portions, and the plurality of frame portions are sequentially connected to form the annular frame 10. The annular frame 10 is a frame 10 connected end to end, and may be a rectangular frame 10, a circular frame 10, or the like, and the shape of the frame 10 is not limited in the present invention.

In an embodiment, as shown in fig. 6, the frame 10 is a rectangular frame 10, and the frame 10 is formed by connecting an upper frame portion, a right frame portion, a lower frame portion, and a left frame portion.

In one embodiment, the touch panel 30 is tempered glass.

In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings, and are used for convenience of description and simplicity of operation only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. A bezel, comprising:

a metal frame portion (11);

a plastic frame part (12) which is integrally formed with the metal frame part (11) and encloses the metal frame part (11) to form an inner cavity (101); the inner cavity (101) provides an installation space for the infrared touch frame (20); the plastic frame portion (12) comprises a first limiting portion (122), the first limiting portion (122) comprises a first limiting surface (1221) facing the rear side of the thickness direction of the frame (10), and the first limiting surface (1221) is used for mounting a touch panel (30); the plastic frame portion (12) further comprises a light filtering portion (121) for filtering infrared light, and the light filtering portion (121) is located on the front side of the first limiting portion (122) in the thickness direction.

2. The frame according to claim 1, wherein the plastic frame portion (12) further comprises a second position-limiting portion (123), and the second position-limiting portion (123) comprises a second position-limiting surface (1231) facing the inner side of the frame (10) in the width direction; the second limiting part (123), the first limiting part (122) and the optical filter part (121) are connected in sequence; the first limiting surface (1221) and the second limiting surface (1231) are connected to form a limiting groove, and the limiting groove is used for installing the touch panel (30).

3. Frame according to claim 1, characterized in that the plastic frame part (12) and the metal frame part (11) are formed in one piece by a co-extrusion process.

4. The bezel according to claim 2, wherein the filter portion (121), the first stopper portion (122) and the second stopper portion (123) are made of the same material.

5. The frame according to claim 1, characterized in that the metal frame portion (11) comprises a front plate portion (111);

the front plate part (111), the optical filter part (121) and the first limiting part (122) are connected in sequence; the optical filter unit (121) is located on the rear side of the front plate section (111) in the thickness direction of the bezel (10).

6. The bezel according to claim 2, characterized in that the metal frame portion (11) comprises an inner plate portion (114), a rear plate portion (113), an outer plate portion (112) and a front plate portion (111); the front plate part (111) and the rear plate part (113) are positioned on opposite sides of the frame (10) in the thickness direction, and the inner plate part (114) and the outer plate part (112) are positioned on opposite sides of the frame (10) in the width direction;

the front plate portion (111), the optical filter portion (121), the first limiting portion (122), the second limiting portion (123), the inner plate portion (114), the rear plate portion (113), and the outer plate portion (112) are connected in sequence to form the inner cavity (101) in an enclosing manner.

7. A frame according to any of the claims 1-6, characterized in that the metal frame part (11) is of aluminium alloy.

8. A face frame assembly, comprising a bezel (10) as recited in any of claims 1-7, further comprising an infrared touch frame (20);

the infrared touch frame (20) comprises an infrared PCB (21) and an infrared transceiving element (22) electrically connected with the infrared PCB (21); the metal frame part (11) comprises a clamping groove (1101) formed in the inner cavity (101), the infrared PCB (21) is clamped with the clamping groove (1101), and the infrared transceiver element (22) faces the optical filter part (121) to send or receive infrared signals.

9. An interactive tablet, comprising the face frame assembly of claim 8, and a touch panel (30); the bezel (10) surrounds the periphery of the touch panel (30); the face frame assembly further comprises a fixing part, and the touch panel (30) is clamped between the fixing part and the first limiting part (122).

10. The interactive tablet of claim 9, wherein the touch panel (30) is tempered glass.