Frame assembly and intelligent blackboard

Abstract

The invention relates to the field of display equipment, and discloses a frame assembly and an intelligent blackboard, the frame assembly comprises a touch frame, a first frame, a pressing block assembly and a light filtering strip, the first frame is provided with a containing cavity, and the first frame comprises a first side wall, a second side wall and a third side wall; the pressing block assembly is connected to the first side wall and used for abutting against the back surface of the glass panel. The light filtering strip is arranged in the containing cavity, the touch frame is connected to the light filtering strip, the two sides of the light filtering strip abut against the first side wall and the third side wall respectively, the light filtering strip is provided with a bearing groove used for containing the side edge of the glass panel, and the opening direction of the bearing groove is the same as the opening direction of the containing cavity. In the process that the glass panel abuts against the bearing groove, the light filtering strip tends to incline, but the two sides of the light filtering strip abut against the first side wall and the third side wall, so that the light filtering strip is limited, the situation that the light filtering strip falls off from the first frame in the bearing process is reduced, and then the situation that the glass panel falls off from the light filtering strip is reduced.

Description

Technical Field

[0001] The present invention relates to the field of display devices, and in particular to a frame component and a smart blackboard. Background Art

[0002] At present, infrared technology touch screens are one of the conventional choices for multimedia devices. They are generally composed of infrared and receiving sensing elements installed on the first outer frame of the touch screen, thereby forming an infrared detection network on the surface of the display module. Any touching object can change the infrared on the contact point to realize touch screen operation.

[0003] Generally, the display module includes a glass panel, which is located on one side surface of the display module to protect the display module from damage. The corner structure of the touch frame includes two adjacent outer frames, a filter strip, a touch frame, a limiter and a corner piece. The bottom of the touch frame is clamped in the groove on the first outer frame, the top of the touch frame is clamped in the groove inside the first outer frame, and then the filter strip is clamped into the edge position of the first outer frame. Among them, the glass panel is placed horizontally, and the filter strip includes a supporting part, a clamping part and a clamping part, wherein the supporting part, the clamping part and the clamping part are manufactured in one piece, so as to facilitate the production of the filter strip; the supporting part is clamped on the outer frame, the supporting part is supported on the glass panel, the clamping part is bent to form a clamping opening and is used to clamp the glass panel close to the side of the supporting part, and the clamping part is arranged on the side of the clamping part away from the glass panel, and one end of the clamping part is clamped on the outer frame; and the outer frame is against the side wall of the clamping part close to the clamping part.

[0004] At this time, the horizontally placed glass panel will exert pressure on the clamping part to move away from the supporting part, and the clamping part will also tend to move away from the supporting part, so the clamping part will be pressed by the outer frame against the clamping part. After a long time, the edge of the clamping part will wear out, and the filter strip will be difficult to clamp to the first outer frame, resulting in the glass panel falling off. Summary of the invention

[0005] The embodiments of the present invention are intended to provide a frame assembly and a smart blackboard to solve the problem in the prior art that the filter strip is easily worn by the pressure of the glass panel when it is clamped on the outer frame, and the glass panel is easily caused to fall off.

[0006] An embodiment of the present invention provides a frame assembly, including a first frame, a receiving cavity is provided in the first frame, and the receiving cavity runs through two opposite ends of the first frame; the first frame includes a first side wall, a second side wall and a third side wall, and the second side wall is connected between the first side wall and the third side wall; a pressing block assembly, the pressing block assembly is connected to the first side wall, and the pressing block assembly is used to press the back surface of a glass panel; a filter strip, the filter strip is arranged in the receiving cavity; the two sides of the filter strip are respectively against the first side wall and the third side wall, and the filter strip is provided with a supporting groove for accommodating the side edge of the glass panel, and the opening direction of the supporting groove is the same as the opening direction of the receiving cavity.

[0007] Optionally, the frame assembly also includes a touch frame, and the filter strip includes an infrared component mounting portion and a supporting portion, the infrared component mounting portion and the supporting portion are respectively arranged on both sides of the touch frame, the infrared component mounting portion and the supporting portion are enclosed to form a receiving cavity, and the supporting portion is bent away from the outer wall of the touch frame to form the supporting groove; the touch frame is received in the receiving cavity.

[0008] Optionally, the filter strip further includes a load-bearing portion and a bottom plate, the load-bearing portion, the infrared component mounting portion and the supporting portion are all arranged on the bottom plate, the load-bearing portion is connected to the infrared component mounting portion, the bottom plate abuts against the third side wall, and the side of the load-bearing portion away from the infrared component mounting portion abuts against the second side wall; and the side of the infrared component mounting portion and the supporting portion away from the bottom plate both abut against the first side wall.

[0009] Optionally, the filter strip includes a first positioning rib and a second positioning rib, the first positioning rib is arranged on the infrared component mounting portion, the second positioning rib is arranged on the bottom plate, and the first positioning rib and the second positioning rib are arranged opposite to each other; the touch frame is clamped to the first positioning rib and the second positioning rib.

[0010] Optionally, the frame assembly also includes a positioning plate, which is connected to the first side wall and extends in a direction away from the filter strip, and is arranged along the length direction of the first frame; there are multiple positioning plates, and an installation opening is provided between any two adjacent positioning plates, the pressure block assembly is accommodated in the installation opening, and one side of the pressure block assembly is flush with one side of the positioning plate.

[0011] Optionally, edges of one side of two adjacent positioning plates facing each other are smoothly transitioned, and an anti-collision gap is provided between the pressing block assembly and the two adjacent positioning plates.

[0012] Optionally, the pressing block assembly includes a pressing block component and a shielding component, the pressing block component is connected to the first frame, the pressing block component is used to abut against the glass panel, the shielding component is connected to the pressing block component, and two shielding components are respectively arranged on both sides of the pressing block component, the shielding component abuts against the side of the positioning plate close to the pressing block component, and the shielding component closes the anti-collision gap.

[0013] Optionally, the first frame also includes a mounting plate, the mounting plate is arranged at the mounting opening, the mounting plate is connected to the first side wall, and the pressure block assembly is connected to the mounting plate; a first locking hole is opened on the pressure block assembly, and the mounting plate is closed in the first locking hole.

[0014] Another embodiment of the present invention provides a smart blackboard, which includes the frame assembly described in any one of the above items, and also includes a display module, a back panel and infrared components. The display module is connected to the back panel, and the display module includes the glass panel, which is arranged on the filter strip, the pressure block assembly is against the glass panel, the back panel is connected to the frame assembly, and the infrared components are arranged on the filter strip. In each of the first frames, the glass panel is located on the side of the filter strip away from the infrared components.

[0015] Optionally, the pressing block assembly is connected to the back plate, and the pressing block assembly is located within a projection range of the back plate perpendicular to the glass panel.

[0016] Compared with the prior art, in the embodiment of the present invention, the touch frame is arranged on the filter bar, the filter bar is installed on the first frame, the filter bar has a supporting groove, and the glass panel is supported by accommodating the glass panel in the supporting groove and then pressing the glass panel with a pressure block assembly.

[0017] When the glass panel is pressed against the supporting groove wall, the filter bar has a tendency to rotate toward the glass panel, but the filter bar is pressed against the first side wall and the third side wall of the first frame, so that the filter bar is limited, thereby reducing the situation where the filter bar falls off the first frame during the supporting process, and further reducing the situation where the glass panel falls off the filter bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or several embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 is a schematic diagram of the structure of a frame assembly provided in an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 The assembly diagram of the first frame, the pressing block assembly, the filter strip and the glass panel;

[0021] Figure 3 yes Figure 1 Schematic diagram of the structure of the filter strip;

[0022] Figure 4 is a schematic structural diagram of a frame assembly provided in other embodiments of the present invention;

[0023] Figure 5 yes Figure 4 Schematic diagram of the assembly of the middle limit plate and the frame assembly;

[0024] Figure 6 yes Figure 4 Structural diagram of the middle limit plate;

[0025] Figure 7 yes Figure 1 Schematic diagram of the assembly of the middle pressure block assembly and the first frame;

[0026] Figure 8 is a schematic structural diagram of a frame assembly provided in other embodiments of the present invention;

[0027] Fig. 9 It is a structural schematic diagram of a smart blackboard provided by another embodiment of the present invention.

[0028] The reference numerals are as follows:

[0029] 100, frame assembly; 10, touch frame; 20, first frame; 21, accommodating cavity; 22, first side wall; 221, notch; 23, second side wall; 231, positioning hole; 24, third side wall; 30, pressing block assembly; 31, pressing block member; 311, first locking hole; 312, second locking hole; 32, shielding member; 40, filter strip; 41, infrared component mounting portion; 411, mounting cavity; 412, first positioning rib; 42, supporting portion; 421, supporting groove; 422, limiting cavity; 43, load-bearing portion; 44, bottom plate; 441, supporting surface; 442, second positioning rib; 50, limiting plate; 51, substrate portion; 52, Locking part; 521, first mounting hole; 53, first protrusion; 531, bump; 54, second protrusion; 55, positioning column; 60, corner piece; 61, corner part; 611, first locking hole; 62, limiting part; 621, first positioning groove; 63, fixing part; 70, positioning plate; 71, mounting port; 80, anti-collision gap; 90, mounting plate; 110, wire outlet; 120, wire outlet cover; 130, second frame; 131, fixing cavity; 132, first bending part; 133, second bending part; 134, second positioning groove; 200, smart blackboard; 210, glass panel; 220, back panel; 2201, protective cavity. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention is described in more detail in the following in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] Please also read Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of a frame assembly provided in an embodiment of the present invention; Figure 2 yes Figure 1A frame assembly 100 provided by one embodiment of the present invention includes a touch frame 10, a first frame 20, a pressing block assembly 30 and a filter bar 40;

[0033] The first frame 20 has a receiving cavity 21 formed therein, and the receiving cavity 21 runs through two opposite ends of the first frame 20; the first frame 20 includes a first side wall 22, a second side wall 23 and a third side wall 24, and the second side wall 23 is connected between the first side wall 22 and the third side wall 24;

[0034] The pressing block assembly 30 is connected to the first side wall 22 , and the pressing block assembly 30 is used to press against the back surface of the glass panel 210 ;

[0035] The filter bar 40 is disposed in the accommodating cavity 21, and the touch frame 10 is connected to the filter bar 40; the two sides of the filter bar 40 are respectively against the first side wall 22 and the third side wall 24, and the filter bar 40 is provided with a supporting groove 421 for accommodating the side of the glass panel 210, and the opening direction of the supporting groove 421 is the same as the opening direction of the accommodating cavity 21.

[0036] The touch frame 10 mentioned above is a touch control device using the principle of infrared touch sensing technology. Infrared rays are emitted to the touch frame 10 through infrared components (not shown in the figure) and an infrared detection network is formed on the front surface of the display module. The back surface of the display module refers to the side surface of the display module illuminated by the light source, and the front surface of the display module will receive the corresponding light signal and display it on the front surface of the display module.

[0037] The display module includes a glass panel 210, which is usually made of a high-strength material, for example, a sodium silicate glass material or an aluminosilicate glass material, to improve the structural stability and compression resistance of the glass panel 210. The glass panel 210 is located on one side surface of the display module to protect the display module from damage.

[0038] In one embodiment, the filter bar 40 is supported on the glass panel 210, and the pressing block assembly 30 has a compacting effect on the glass panel 210, so the filter bar 40 is subjected to the pressing force of the glass panel 210, so that the filter bar 40 has a tendency to tilt toward the glass panel 210. However, the filter bar 40 is pressed against the first side wall 22 and the third side wall 24, so that the two sides of the filter bar 40 are limited, so that the filter bar 40 is difficult to rotate and move. This reduces the situation where the filter bar 40 falls off the first frame 20, and further reduces the situation where the glass panel 210 falls off the supporting groove 421.

[0039] See also Figure 2 and Figure 3 , Figure 3 yes Figure 1 Schematic diagram of the structure of the filter strip.

[0040] Specifically, the touch frame 10 is formed by stamping sheet metal, and the touch frame 10 adopts a U-shaped structure, thereby reducing the production cost of the touch frame 10 .

[0041] The filter strip 40 is formed by integral injection molding, and is disposed in the accommodating cavity 21 . The filter strip 40 is provided with a receiving opening (not shown in the figure), and the infrared component (not shown in the figure) is installed in the receiving opening (not shown in the figure), and the infrared component (not shown in the figure) is disposed between the touch frame 10 and the second side wall 23 .

[0042] Two sides of the filter bar 40 are respectively against the first side wall 22 and the third side wall 24 ; one side of the filter bar 40 away from the second side wall 23 is bent to form a supporting groove 421 , and the side edge of the glass panel 210 is received in the supporting groove 421 .

[0043] In other embodiments, the infrared components and the touch frame 10 are mounted on the mounting member by snapping the mounting member with the filter strip 40 , so that the touch frame 10 is located on a side of the filter strip 40 close to the glass panel 210 , and the infrared components are arranged between the touch frame 10 and the second side wall 23 .

[0044] In one embodiment, the filter strip 40 includes an infrared component mounting portion 41 and a supporting portion 42, and the infrared component mounting portion 41 and the supporting portion 42 are respectively arranged on both sides of the touch frame 10, and the infrared component mounting portion 41 and the supporting portion 42 enclose a mounting cavity 411, and the supporting portion 42 is bent away from the outer wall of the touch frame 10 to form a supporting groove 421; the touch frame 10 is accommodated in the mounting cavity 411.

[0045] Specifically, a receiving opening (not shown in the figure) is opened in the infrared component mounting portion 41, and the infrared component (not shown in the figure) is installed on the receiving opening (not shown in the figure). The infrared component mounting portion 41 and the supporting portion 42 are integrally injection molded, thereby reducing the process steps of the filter strip 40 in the production process, and further reducing the production cost of the filter strip 40.

[0046] The supporting portion 42 of the filter strip 40 is bent multiple times to form a supporting groove 421, and the touch frame 10 is arranged between the infrared component mounting portion 41 and the supporting portion 42. Therefore, the supporting portion 42 can not only support the glass panel 210, but also select the required radiation band for the signal of the infrared component (not shown in the figure) and project it onto the display module.

[0047] In other embodiments, the infrared component mounting portion 41 and the supporting portion 42 may also be formed by snapping together the same material, thereby reducing the purchase of multiple materials and the process of material synthesis, thereby reducing the production cost of the filter strip 40 .

[0048] In one embodiment, the filter strip 40 further includes a load-bearing portion 43 and a bottom plate 44. The load-bearing portion 43, the infrared component mounting portion 41 and the supporting portion 42 are all arranged on the bottom plate 44. The load-bearing portion 43 is connected to the infrared component mounting portion 41, the bottom plate 44 abuts against the third side wall 24, and the side of the load-bearing portion 43 away from the infrared component mounting portion 41 abuts against the second side wall 23; and the side of the infrared component mounting portion 41 and the supporting portion 42 away from the bottom plate 44 both abut against the first side wall 22.

[0049] Specifically, the bottom plate 44 , the bearing portion 43 , the infrared component mounting portion 41 and the supporting portion 42 are integrally manufactured by injection molding, thereby reducing the manufacturing cost of the filter strip 40 .

[0050] Moreover, the supporting portion 42 is formed by four bends, and the infrared component mounting portion 41 is formed by one bend, and the height of the supporting portion 42 is substantially the same as the height of the infrared component mounting portion 41, and the width is substantially the same, so the weight of the supporting portion 42 is greater than the weight of the infrared component mounting portion 41. Therefore, the center of gravity of the filter strip 40 is close to one side of the supporting portion 42, so the filter strip 40 has a tendency to tilt away from the second side wall 23.

[0051] By arranging the load-bearing portion 43 on the side of the infrared component mounting portion 41 close to the second side wall 23, the center of gravity of the filter strip 40 is close to the side of the load-bearing portion 43. Therefore, the arrangement of the load-bearing portion 43 has the function of balancing the center of gravity of the filter strip 40, thereby preventing the filter strip 40 from tilting due to the excessive weight of the supporting portion 42.

[0052] In addition, the load-bearing portion 43 abuts against the second side wall 23. When the glass panel 210 abuts against the supporting portion 42, the filter strip 40 has a tendency to tilt toward the glass panel 210. The second side wall 23 limits the load-bearing portion 43, the first side wall 22 limits the infrared component mounting portion 41 and the supporting portion 42, and the third side wall 24 limits the bottom plate 44, so that the position of the filter strip 40 is difficult to rotate. Therefore, the filter strip 40 is difficult to fall off from the first frame 20, and further, the glass panel 210 is difficult to fall off from the filter strip 40.

[0053] See also Figure 3 , Figure 4 and Figure 5 , a schematic diagram of the structure of a frame assembly provided in other embodiments of the present invention; Figure 5 yes Figure 4 Assembly diagram of the middle limit plate and frame assembly.

[0054] In some embodiments, it also includes a limiting plate 50, two limiting plates 50 are provided, and the two limiting plates 50 are arranged at the openings on both sides of the first frame 20. The limiting plates 50 are connected to the first frame 20, and the limiting plates 50 are closed at the openings.

[0055] The limiting plate 50 includes a base plate portion 51, a locking portion 52 and a first protruding portion 53, and the base plate portion 51, the locking portion 52 and the first protruding portion 53 are manufactured as one piece; the size of the base plate portion 51 is matched with the size of the opening, the first protruding portion 53 is connected to the base plate portion 51, and the locking portion 52 is connected to the base plate portion 51.

[0056] The limiting plate 50 is installed on the first frame 20, and the first protrusion 53 extends into the accommodating cavity 21. Moreover, a positioning hole 231 is provided on the second side wall 23, and a gap is provided between the first side wall 22 and the load-bearing part 43, and the positioning hole 231 is connected to the gap; moreover, a protrusion 531 is provided on the first protrusion 53, and the protrusion 531 is matched with the positioning hole 231 to limit the limiting plate 50.

[0057] Moreover, the bottom plate 44 includes a supporting surface 441, the bearing portion 43, the infrared component mounting portion 41 and the supporting portion 42 are all arranged on the supporting surface 441, and when the limiting plate 50 is installed on the first frame 20, the base plate portion 51 abuts against the supporting surface 441, and the locking portion 52 is connected to the first side wall 22. Thus, the limiting plate 50 is accommodated in the accommodating cavity 21, so that the limiting plate 50 is flush with the end surfaces on both sides of the first frame 20.

[0058] In some embodiments, the inner wall of the supporting portion 42 and the bottom plate 44 enclose a limiting cavity 422, and the limiting cavity 422 is connected to the accommodating cavity 21; the limiting plate 50 also includes a second protrusion 54, the second protrusion 54 is connected to the substrate portion 51, the second protrusion 54 and the first protrusion 53 are respectively located on both sides of the substrate portion 51, the second protrusion 54 is vertically arranged relative to the first protrusion 53, and the second protrusion 54 is extended in a direction away from the substrate portion 51. When the limiting plate 50 is accommodated in the accommodating cavity 21, the second protrusion 54 is accommodated in the limiting cavity 422. At this time, the limiting plate 50 will have a tendency to rotate during the installation process, and the limiting plate 50 will have a gap error with the filter strip 40 after the rotation, thereby causing external dust to enter the frame assembly 100. By limiting the second protrusion 54 by the supporting portion 42, it is difficult for the limiting plate 50 to rotate, thereby reducing the gap error between the limiting plate 50 and the filter strip 40.

[0059] In some embodiments, a notch 221 is provided on one side of the first side wall 22 close to the limiting plate 50, the notch 221 is connected to the accommodating cavity 21, the locking portion 52 is received in the notch 221, and the locking portion 52 abuts against the side wall of the notch 221, so that the side wall of the notch 221 limits the locking portion 52. The locking portion 52 is limited by the side wall of the notch 221, so that it is difficult for the locking portion 52 to rotate, thereby reducing the gap between the limiting plate 50 and the filter strip 40 from exceeding the tolerance.

[0060] See also Figure 5 and Figure 6 , Figure 6 yes Figure 4 Schematic diagram of the structure of the middle limit plate.

[0061] In some embodiments, the frame assembly 100 further includes a corner piece 60, which is connected to the first frame 20, and includes a corner portion 61, which is connected to the side of the first side wall 22 facing away from the third side wall 24. A first locking hole 611 is provided on the corner portion 61, and a first mounting hole 521 is provided on the locking portion 52. The first locking hole 611 and the first mounting hole 521 are coaxially arranged, and the first locking hole 611 is arranged along the length direction of the first frame 20; the frame assembly 100 further includes a first screw, which is passed through the first locking hole 611 and the first mounting hole 521, so that the locking portion 52 is connected to the corner portion 61. During the installation process of the limiting plate 50, a rotation tendency will be generated, and the limiting of the second protrusion 54 by the supporting portion 42 and the limiting of the locking portion 52 by the side wall of the notch 221 make it difficult for the limiting plate 50 to be displaced.

[0062] See also Figure 2 and Figure 3 In one embodiment, the filter strip 40 includes a first positioning rib 412 and a second positioning rib 442. The first positioning rib 412 is arranged on the infrared component mounting portion 41, and the second positioning rib 442 is arranged on the bottom plate 44. The first positioning rib 412 and the second positioning rib 442 are arranged opposite to each other; the touch frame 10 is clamped on the first positioning rib 412 and the second positioning rib 442.

[0063] Specifically, part of the infrared component mounting portion 41 is relatively perpendicular to the bottom plate 44, and the other part of the infrared component mounting portion 41 is parallel to the bottom plate 44, and the first positioning rib 412 is provided at the part of the infrared component mounting portion 41 parallel to the bottom plate 44. The first positioning rib 412 is provided protruding from the infrared component mounting portion 41, and the second positioning rib 442 is provided protruding from the bottom plate 44. The first positioning rib 412 and the second positioning rib 442 are both manufactured integrally with the filter strip 40, thereby reducing the process cost of splicing.

[0064] See also Figure 5 and Figure 6 The first positioning rib 412 and the second positioning rib 442 are arranged opposite to each other, so that the upper and lower sides of the touch frame 10 are limited by the first positioning rib 412 and the second positioning rib 442, thereby reducing the displacement of the touch frame 10 due to shaking.

[0065] In some embodiments, a positioning column 55 is provided on the base plate portion 51 of the limiting plate 50, and the positioning column 55 is arranged along the length direction of the first frame 20. When the limiting plate 50 is installed in an open position, the positioning column 55 abuts against the touch frame 10, so that the touch frame 10 is further limited, reducing the displacement of the touch frame 10 and causing difficulty in receiving the light source signal of the infrared component (not shown in the figure).

[0066] See also Figure 2 and Figure 7 , Figure 7 yes Figure 1 Schematic diagram of the assembly of the middle pressure block assembly and the first frame.

[0067] In one embodiment, the frame assembly 100 also includes a positioning plate 70, which is connected to the first side wall 22, and extends in a direction away from the filter strip 40, and is arranged along the length direction of the first frame 20; a plurality of positioning plates 70 are provided, and an installation opening 71 is provided between any two adjacent positioning plates 70, the pressure block assembly 30 is accommodated in the installation opening 71, and one side of the pressure block assembly 30 is flush with one side of the positioning plate 70.

[0068] Specifically, the positioning plate 70 is integrally manufactured with the first frame 20 , and the positioning plate 70 is connected to the side of the first side wall 22 away from the second side wall 23 , thereby reducing the process cost during the splicing process of the positioning plate 70 and the first frame 20 .

[0069] The side surface of the pressing block assembly 30 facing away from the glass panel 210 is flush with the side surface of the positioning plate 70 away from the glass panel 210 , thereby reducing dust from entering the frame assembly 100 through the gap between the pressing block assembly 30 and the positioning plate 70 .

[0070] In one embodiment, the edges of one side of two adjacent positioning plates 70 facing each other are smoothly transitioned, and an anti-collision gap 80 is provided between the pressing block assembly 30 and the two adjacent positioning plates 70 .

[0071] Specifically, the pressing block assembly 30 is installed on the first side wall 22 by screws. The pressing block assembly 30 tends to rotate during the installation process. During the rotation of the pressing block assembly 30, the pressing block assembly 30 may collide with the two positioning plates 70, causing the positioning plates 70 to bend or the surface of the pressing block assembly 30 to be damaged. The edges of the two positioning plates 70 facing each other are smoothly transitioned to reduce the friction during the collision between the pressing block assembly 30 and the positioning plates 70, thereby reducing the damage to the surface of the pressing block assembly 30 or the positioning plates 70. Moreover, by setting a gap, it is difficult for the positioning plates 70 to collide with the pressing block assembly 30.

[0072] In other embodiments, a buffer is provided on the opposite sides of two adjacent positioning plates 70 , and the buffer may be made of buffer foam.

[0073] In one embodiment, the pressing block assembly 30 includes a pressing block component 31 and a shielding component 32. The pressing block component 31 is connected to the first frame 20, and the pressing block component 31 is used to abut against the glass panel 210. The shielding component 32 is connected to the pressing block component 31, and the two shielding components 32 are respectively arranged on both sides of the pressing block component 31. The shielding component 32 abuts against the side of the positioning plate 70 close to the pressing block component 31, and the shielding component 32 closes the anti-collision gap 80.

[0074] Specifically, two shielding members 32 are provided, and the two shielding members 32 are respectively connected to the two sides of the pressing block member 31, and the two shielding members 32 are integrally manufactured with the pressing block member 31. Thus, the process cost of splicing the shielding members 32 and the pressing block member 31 is reduced. Moreover, the shielding members 32 close the anti-collision gap 80, thereby reducing external dust from entering the frame assembly 100 through the anti-collision gap 80.

[0075] Moreover, the pressing piece 31 and the shielding piece 32 are made of plastic glass material. Since the plastic glass material is flexible, the pressing piece 31 can directly abut against the glass panel 210 .

[0076] In other embodiments, the shielding member 32 may be formed by splicing the pressing block member 31. One side of the pressing block member 31 may be connected to the glass panel 210 by providing foam, thereby reducing the bump on the back of the glass panel 210.

[0077] In one embodiment, the first frame 20 also includes a mounting plate 90, which is arranged at the mounting opening 71, the mounting plate 90 is connected to the first side wall 22, and the pressure block assembly 30 is connected to the mounting plate 90; a first locking hole 311 is opened on the pressure block assembly 30, and the mounting plate 90 is closed in the first locking hole 311.

[0078] Specifically, the mounting plate 90 is connected to the first frame 20 and the mounting plate 90 and the first frame 20 are integrally manufactured, the mounting plate 90 is flush with the first side wall 22 and protrudes from the first side wall 22, and the pressing block 31 is connected to the mounting plate 90. The first locking hole 311 is opened on the pressing block 31, and the first locking hole 311 is used to connect to other components, and is closed in the first locking hole 311 by the mounting plate 90. When other components are connected to the pressing block 31 through the first locking hole 311 by screwing, it is difficult for the generated iron filings to enter the interior of the frame assembly 100 through the first locking hole 311.

[0079] In other embodiments, the first locking hole 311 may be a blind hole.

[0080] See also Figure 1 and Figure 8 , Figure 8 A schematic diagram of the structure of a frame assembly provided in other embodiments of the present invention;

[0081] In some embodiments, the first side wall 22 is provided with a wire outlet 110 for placing the circuit of the touch frame 10. The frame assembly 100 further includes a wire outlet cover 120 connected to the first side wall 22 and at least partially covering the wire outlet 110.

[0082] The corner piece 60 further includes a limiting portion 62. The outlet cover plate 120 is provided with a limiting opening (not shown in the figure), and the limiting portion 62 is received in the limiting opening (not shown in the figure). The limiting portion 62 abuts against the side wall of the limiting opening (not shown in the figure) to limit the outlet cover plate 120. When the outlet cover plate 120 is installed on the first side wall 22, the limiting portion 62 limits the outlet cover plate 120, so that the outlet cover plate 120 is not easy to rotate and deviate.

[0083] The frame assembly 100 further includes a second frame 130, wherein two first frames 20 are provided, and two second frames 130 are provided, the two first frames 20 are respectively connected to the two sides of the longer length of the glass panel 210, and the two second frames 130 are respectively connected to the two sides of the shorter length of the glass panel 210. Both sides of the second frame 130 are respectively connected to one first frame 20, so as to enclose the glass panel 210.

[0084] The second frame 130 is connected to the corner piece 60, and the side of the limiting plate 50 facing away from the first frame 20 is flush with one side of the second frame 130. The second frame 130 is formed by multiple bendings, and the second frame 130 is provided with a fixing cavity 131, which runs through the second frame 130, and the corner piece 60 includes a fixing portion 63, which is passed through the fixing cavity 131 and connected to the second frame 130.

[0085] In addition, the fixing portion 63 is provided with a plurality of screw holes, and the second frame 130 is provided with a plurality of through holes at positions corresponding to the screw holes, and screws are inserted through the screw holes and the through holes, so that the second frame 130 is connected to the fixing portion 63. Among them, the screw holes are all blind holes. The purpose of such a setting is that it is difficult for external dust to enter the second frame 130 or the glass panel 210 through the screw holes.

[0086] See also Figure 7 , Figure 8 and Fig. 9 , Fig. 9 It is a structural schematic diagram of a smart blackboard provided by another embodiment of the present invention.

[0087] Another embodiment of the present invention provides a smart blackboard 200, including a display module, a back panel 220, infrared components and the above-mentioned frame assembly 100, the display module is connected to the back panel, the display module includes a glass panel 210, the glass panel 210 is arranged on the filter strip 40, the pressure block assembly 30 abuts against the glass panel 210, the back panel 220 is connected to the frame assembly 100, the infrared components are arranged on the filter strip 40, and in each first frame 20, the glass panel 210 is located on the side of the filter strip 40 away from the infrared components.

[0088] Specifically, the glass panel 210 is roughly in the shape of a rectangular panel;

[0089] The display module also includes a light source, a reflector, a light guide plate, an optical film, etc., and the display module is installed on the back plate 220. In addition, the smart blackboard 200 includes the frame assembly 100 mentioned above, and the smart blackboard 200 also has the function of reducing the filter strip 40 from falling off the first frame 20 during the supporting process, thereby reducing the glass panel 210 from falling off the filter strip 40.

[0090] In one embodiment, the pressing block assembly 30 is connected to the back plate 220 , and the pressing block assembly 30 is located within a projection range of the back plate 220 perpendicular to the glass panel 210 .

[0091] Specifically, the back plate 220 is provided with a first fastening hole, which is coaxially arranged with the first locking hole 311. The pressing block assembly 30 further includes a second screw, which is passed through the first fastening hole and the first locking hole 311, so that the pressing block 31 is connected to the back plate 220.

[0092] The pressing block 31 is provided with a second locking hole 312, and the mounting plate 90 is provided with a second fastening hole. The pressing block assembly 30 further includes a third screw, which is inserted through the second locking hole 312 and the second fastening hole, so that the pressing block 31 is connected to the mounting plate 90; thereby, the back plate 220 is connected to the mounting plate 90. The projections of the first locking hole 311 and the second locking hole 312 facing the glass panel 210 do not overlap, and the first locking hole 311 and the second locking hole 312 are located within the projection range of the back plate 220 perpendicularly facing the glass panel 210. Therefore, when the back plate 220 is installed on the frame assembly 100, the second locking hole 312 can be shielded to prevent external dust from entering the smart blackboard 200 through the second locking hole 312. Moreover, the first locking hole 311 is closed by the mounting plate 90, so the mounting plate 90 also has a dustproof effect.

[0093] In some embodiments, a first positioning groove 621 is defined on the limiting portion 62 , a second positioning groove 134 is defined on the second frame 130 , and the back panel 220 is received in the first positioning groove 621 and the second positioning groove 134 .

[0094] The side wall of the positioning plate 70 facing away from the glass panel 210 is flush with the side wall of the first positioning groove 621 , so as to facilitate the back plate 220 to be buckled into the frame assembly 100 . Moreover, the first positioning groove 621 and the second positioning groove 134 can limit the back plate 220 .

[0095] The second frame 130 includes a first bending portion 132 and a second bending portion 133, and the first bending portion 132 and the second bending portion 133 are protruding in a direction away from the glass panel 210; and the second positioning groove 134 is arranged between the first bending portion 132 and the second bending portion 133, and the first bending portion 132 is closer to the glass panel 210 than the second bending portion 133.

[0096] Moreover, after the back plate 220 is received in the first positioning groove 621 and the second positioning groove 134 , a protection cavity 2201 is formed. The protection cavity 2201 can protect the glass panel 210 and the light source assembly from being disturbed by external dust.

[0097] In addition, when the back plate 220 is received in the first positioning groove 621 and the second positioning groove 134 , the back plate 220 is pressed against the outlet cover plate 120 , thereby further limiting the position of the outlet cover plate 120 .

[0098] In some embodiments, the back plate 220 is connected to the corner piece 60. Specifically, a third locking hole is provided on the limiting portion 62, and a third fastening hole is provided on the back plate 220. The third locking hole and the third fastening hole are coaxially arranged, and the third locking hole is a blind hole, thereby reducing external dust from entering the frame assembly 100 through the third locking hole. The third locking hole is arranged on the side of the first positioning groove 621 close to the glass panel 210.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A frame assembly, characterized in that: include: A first frame, wherein a receiving cavity is formed in the first frame, and the receiving cavity runs through two opposite ends of the first frame; the first frame comprises a first side wall, a second side wall and a third side wall, and the second side wall is connected between the first side wall and the third side wall; A pressing block assembly, the pressing block assembly is connected to the first side wall, and the pressing block assembly is used to press against the back surface of the glass panel; A filter strip, the filter strip is arranged in the accommodating cavity; two sides of the filter strip are respectively against the first side wall and the third side wall, and the filter strip is provided with a supporting groove for accommodating the side edge of the glass panel, and the opening direction of the supporting groove is the same as the opening direction of the accommodating cavity.

2. The frame assembly according to claim 1, characterized in that: It also includes a touch frame; the filter strip includes an infrared component mounting portion and a supporting portion, the infrared component mounting portion and the supporting portion are respectively arranged on both sides of the touch frame, the infrared component mounting portion and the supporting portion are enclosed to form a receiving cavity, the supporting portion is bent away from the outer wall of the touch frame to form the supporting groove; the touch frame is received in the receiving cavity.

3. The frame assembly according to claim 2, characterized in that: The filter strip also includes a load-bearing portion and a bottom plate, wherein the load-bearing portion, the infrared component mounting portion and the supporting portion are all arranged on the bottom plate, the load-bearing portion is connected to the infrared component mounting portion, the bottom plate abuts against the third side wall, and the side of the load-bearing portion away from the infrared component mounting portion abuts against the second side wall; and the sides of the infrared component mounting portion and the supporting portion away from the bottom plate both abut against the first side wall.

4. The frame assembly according to claim 3, characterized in that: The filter strip includes a first positioning rib and a second positioning rib, the first positioning rib is arranged on the infrared component mounting portion, the second positioning rib is arranged on the bottom plate, and the first positioning rib and the second positioning rib are arranged opposite to each other; the touch frame is clamped to the first positioning rib and the second positioning rib.

5. The frame assembly according to claim 1, characterized in that: It also includes a positioning plate, which is connected to the first side wall, extends in a direction away from the filter strip, and is arranged along the length direction of the first frame; there are multiple positioning plates, and an installation opening is provided between any two adjacent positioning plates, the pressure block assembly is accommodated in the installation opening, and one side of the pressure block assembly is flush with one side of the positioning plate.

6. The frame assembly according to claim 5, characterized in that: One side edge of two adjacent positioning plates facing each other is smoothly transitioned, and an anti-collision gap is provided between the pressing block assembly and the two adjacent positioning plates.

7. The frame assembly according to claim 6, characterized in that: The pressing block assembly includes a pressing block component and a shielding component, the pressing block component is connected to the first frame, the pressing block component is used to abut against the glass panel, the shielding component is connected to the pressing block component, and two shielding components are respectively arranged on both sides of the pressing block component, the shielding component abuts against the side of the positioning plate close to the pressing block component, and the shielding component closes the anti-collision gap.

8. The frame assembly according to claim 7, characterized in that: The first frame also includes a mounting plate, which is arranged at the mounting opening, connected to the first side wall, and the pressure block assembly is connected to the mounting plate; a first locking hole is opened on the pressure block assembly, and the mounting plate is closed in the first locking hole.

9. A smart blackboard, characterized in that: It comprises a display module, a back plate, infrared components and a frame assembly as described in any one of claims 1 to 8, wherein the display module is connected to the back plate, the display module comprises the glass panel, the glass panel is arranged on the filter strip, the pressure block assembly abuts against the glass panel, the back plate is connected to the frame assembly, the infrared components are arranged on the filter strip, and in each of the first frames, the glass panel is located on the side of the filter strip away from the infrared components.

10. The smart blackboard according to claim 9, characterized in that: The pressing block assembly is connected to the back plate, and the pressing block assembly is located within a projection range of the back plate perpendicular to the glass panel.

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