Back plate and interactive flat panel

Abstract

The present application relates to the technical field of electronic devices. Provided are a back plate and an interactive flat panel. The back plate can be applied to a display device, and comprises a plate body, longitudinal reinforcing ribs, and transverse reinforcing ribs, wherein reinforcing portions are further provided at two opposite ends of each longitudinal reinforcing rib, the reinforcing portions are respectively located at the two opposite ends of the longitudinal reinforcing rib and are connected to the longitudinal reinforcing rib, the reinforcing portions respectively located at the two opposite ends of the longitudinal reinforcing rib are respectively bent relative to the top and bottom of the plate body and fixedly attached to the top and bottom of the plate body, and mounting gaps are reserved between the transverse reinforcing ribs and the longitudinal reinforcing ribs. By increasing the area of the longitudinal reinforcing ribs across the plate body in the longitudinal direction, the vertical support effect of the interactive flat panel is better, which helps to prevent the back plate from sagging or deforming under the action of gravity, and improves the rigidity of the back plate in the longitudinal direction. Moreover, no direct force transmission occurs between the transverse reinforcing ribs and the longitudinal reinforcing ribs, and the rigidity of the back plate in the longitudinal direction is also ensured.

Description

Backboard and interactive tablet TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, and in particular to a backboard and an interactive tablet. BACKGROUND

[0002] An intelligent interactive tablet is a display device integrating multiple functions, mainly used in the fields of education and teaching, enterprise meetings, and commercial display.

[0003] In related display devices such as intelligent interactive tablets, a backlight module is usually provided to provide a light source, and the backlight module is generally mounted on a backboard to play a supporting and protecting role through the backboard. In related technologies, the backboard is usually provided with transverse reinforcing ribs and longitudinal reinforcing ribs to improve its mechanical properties, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are cross-connected. However, in the case of a large size of the intelligent interactive tablet, the overall rigidity of the backboard is still insufficient, and in the process of the whole machine falling or overturning test, the backboard deforms greatly, which is difficult to meet the product detection standard.

[0004] SUMMARY

[0005] The purpose of the present application is to provide a backboard and an interactive tablet, which solves the problem of insufficient structural strength of the backboard in the interactive tablet product.

[0006] To solve the above technical problems, the present application adopts the following technical solutions:

[0007] In a first aspect, a backboard is provided, which is applied to a display device, and includes:

[0008] a plate body;

[0009] a first longitudinal reinforcing rib and a second longitudinal reinforcing rib, the first longitudinal reinforcing rib and the second longitudinal reinforcing rib are arranged on the plate body with an interval, and the opposite ends of the first longitudinal reinforcing rib and the second longitudinal reinforcing rib are respectively towards the top side and the bottom side of the plate body, and the opposite ends of the first longitudinal reinforcing rib are respectively provided with a first reinforcing part towards the top side and a second reinforcing part towards the bottom side, the opposite ends of the second longitudinal reinforcing rib are respectively provided with a third reinforcing part towards the top side and a fourth reinforcing part towards the bottom side, and the first reinforcing part and the third reinforcing part are bent relative to the top side of the plate body and fixedly attached to the top side, and the second reinforcing part and the fourth reinforcing part are bent relative to the bottom side of the plate body and fixedly attached to the bottom side; and

[0010] two or more transverse reinforcing ribs, the transverse reinforcing ribs are arranged on the plate body, and an installation gap is left between adjacent two transverse reinforcing ribs for the first longitudinal reinforcing rib or the second longitudinal reinforcing rib to pass through.

[0011] As an optional implementation, the lateral reinforcing ribs arranged on opposite sides of the first longitudinal reinforcing rib are arranged oppositely.

[0012] The lateral reinforcing ribs arranged on opposite sides of the second longitudinal reinforcing rib are arranged oppositely.

[0013] As an optional implementation, the first reinforcing part, the second reinforcing part, the third reinforcing part and the fourth reinforcing part are at least partially protruded from the plate body;

[0014] The thickness dimension of the first reinforcing part and the second reinforcing part protruding from the plate body gradually decreases in the direction of the top side and the ground side of the plate body from the first longitudinal reinforcing rib, respectively;

[0015] The thickness dimension of the third reinforcing part and the fourth reinforcing part protruding from the plate body gradually decreases in the direction of the top side and the ground side of the plate body from the second longitudinal reinforcing rib, respectively.

[0016] As an optional implementation, the plate body comprises:

[0017] A main plate;

[0018] A support plate surrounding the outer peripheral part of the main plate, the support plate being arranged at an angle with the main plate and being connected to the main plate through the first end thereof;

[0019] A connecting plate surrounding the outer peripheral part of the support plate and being connected to the second end of the support plate, the connecting plate being parallel to the main plate;

[0020] The opposite end parts of the first longitudinal reinforcing rib and the second longitudinal reinforcing rib are extended to the edge of the main plate, and the first reinforcing part, the second reinforcing part, the third reinforcing part and the fourth reinforcing part are extended from the edge of the main plate to the support plate.

[0021] As an optional implementation, the first reinforcing part and the third reinforcing part are connected to the connecting plate.

[0022] As an optional implementation, at least one of the second reinforcing part and the fourth reinforcing part is a relief part recessed in the main plate.

[0023] In the case that the second reinforcing part is the relief part, the end part of the first longitudinal reinforcing rib is connected to the relief part.

[0024] In the case that the fourth reinforcing part is the relief part, the end part of the second longitudinal reinforcing rib is connected to the relief part.

[0025] As an optional implementation, the first reinforcing ribs are arranged on the support plates located on the opposite sides of the main plate in the lateral direction, and each of the first reinforcing ribs is arranged in the longitudinal direction.

[0026] The first reinforcing ribs are arranged between the support plates located on the opposite sides of the main plate in the lateral direction and the main plate corresponding to the support plates.

[0027] As an optional implementation, the first reinforcing ribs are arranged on the support plates located on the opposite sides of the main plate in the lateral direction, and the first reinforcing ribs are arranged in the longitudinal direction.

[0028] One side of each of the first reinforcing ribs is connected to the main plate, and the other side is arranged close to the connecting plate with a gap between the first reinforcing rib and the connecting plate.

[0029] One side of each of the first reinforcing ribs is connected to the main plate, and the other side is connected to the connecting plate through the support plate in the lateral direction.

[0030] As an optional implementation, the second reinforcing ribs are arranged on the top side and the bottom side of the main plate, and the second reinforcing ribs are arranged in the lateral direction of the main plate.

[0031] One side of each of the second reinforcing ribs is connected to the main plate, and the other side is arranged close to the connecting plate in the longitudinal direction.

[0032] As an optional implementation, the support platform is arranged on the side close to each other of the first longitudinal reinforcing rib and the second longitudinal reinforcing rib, and the support platform is arranged in the longitudinal direction and one end of the support platform is arranged close to the end of the lateral reinforcing rib.

[0033] The gap between the lateral reinforcing rib and the first longitudinal reinforcing rib and the second longitudinal reinforcing rib is greater than the gap between the lateral reinforcing rib and the first longitudinal reinforcing rib and the second longitudinal reinforcing rib on the side away from each other of the first longitudinal reinforcing rib and the second longitudinal reinforcing rib.

[0034] As an optional implementation, the auxiliary rib is arranged between the first longitudinal reinforcing rib and the second longitudinal reinforcing rib, one end of the auxiliary rib is connected to the lateral reinforcing rib, and the other end of the auxiliary rib extends to the top side of the plate body and is fixed to the top side of the plate body.

[0035] As an optional implementation, the first longitudinal reinforcing rib and the second longitudinal reinforcing rib are each provided with a plurality of wall hanging portions arranged at intervals in the longitudinal direction, and the outer sides of the wall hanging portions are each provided with a plurality of third reinforcing ribs.

[0036] The outer periphery of the wall hanging portion near the upper end of the first longitudinal reinforcing rib and the second longitudinal reinforcing rib is provided with the third reinforcing rib.

[0037] As an optional implementation, at least between any two adjacent wall hanging portions, the first longitudinal reinforcing rib and the second longitudinal reinforcing rib are further provided with a fourth reinforcing rib.

[0038] As an optional implementation, the first longitudinal reinforcing rib and the second longitudinal reinforcing rib each have:

[0039] a reinforcing section; and

[0040] a straight section, the width of the straight section being smaller than the width of the reinforcing section, and at least one end of the straight section being connected to the reinforcing section.

[0041] The wall hanging portion is located on the reinforcing section.

[0042] In a second aspect, an interactive panel is provided, comprising:

[0043] the back plate as described in the first aspect;

[0044] a backlight module arranged on the back plate; and

[0045] a display screen mounted and cooperated with the back plate through a frame.

[0046] The back plate of the present application has the following advantages: based on the first longitudinal reinforcing rib, the second longitudinal reinforcing rib and the transverse reinforcing rib arranged on the plate body, each longitudinal reinforcing rib (including the first longitudinal reinforcing rib and the second longitudinal reinforcing rib) extends to the top side and the bottom side of the plate body through the first reinforcing portion, the second reinforcing portion, the third reinforcing portion and the fourth reinforcing portion, thereby increasing the area of the longitudinal reinforcing rib across the plate body in the longitudinal direction, so that the vertical support effect of the interactive panel is stronger, which helps to prevent the back plate from sagging or deforming under the action of gravity, and improves the rigidity of the back plate in the longitudinal direction.

[0047] At the same time, the longitudinal reinforcing rib extends its longitudinal cross-sectional area on the plate body through the reinforcing portions, which helps to ensure the continuity and integrity of the back plate structure, thereby improving the overall strength and bending stiffness of the back plate.

[0048] In addition, by increasing the structural strength of the back plate, the inside of the back plate does not need to additionally increase the built-in reinforcing ribs, thereby reducing the processing difficulty and material cost of the back plate and the display device product.

[0049] The mounting gap is left between the transverse reinforcing ribs and the longitudinal reinforcing ribs, so that the longitudinal reinforcing ribs and the transverse reinforcing ribs can respectively play a main supporting role in their direction, and the stress concentration at the intersection of the two is avoided, so that the stress of the back plate is more uniform, and the deformation or damage caused by uneven stress is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0050] The present application will be further described in detail below according to the drawings and embodiments.

[0051] Fig. 1 is a schematic diagram of the back plate structure according to an embodiment of the present application;

[0052] Fig. 2 is a schematic diagram of the back plate structure according to an embodiment of the present application;

[0053] Fig. 3 is a schematic diagram of the back plate structure according to an embodiment of the present application;

[0054] Fig. 4 is a schematic diagram of the back plate structure according to an embodiment of the present application;

[0055] Fig. 5 is a schematic diagram of the back plate structure according to an embodiment of the present application;

[0056] Fig. 6 is a sectional view of the back plate according to an embodiment of the present application;

[0057] Fig. 7 is an isometric view of the back plate according to an embodiment of the present application;

[0058] Fig. 8 is an enlarged view of the wall hanging part structure according to an embodiment of the present application;

[0059] Fig. 9 is an enlarged view of the wall hanging part structure according to an embodiment of the present application;

[0060] Fig. 10 is an enlarged view of the wall hanging part structure according to an embodiment of the present application;

[0061] Fig. 11 is an enlarged schematic diagram of the cooperation structure of the longitudinal reinforcing ribs and the transverse reinforcing ribs according to an embodiment of the present application;

[0062] Fig. 12 is an enlarged view of part A of Fig. 7;

[0063] Fig. 13 is an enlarged view of part B of Fig. 8.

[0064] In the figure: 10, plate body; 11, main plate; 12, support plate; 13, connecting plate; 20, first longitudinal reinforcing rib; 21, first reinforcing part; 22, second reinforcing part; 23, position avoiding table; 24, supporting table; 25, wall hanging part; 26, third reinforcing rib; 27, fourth reinforcing rib; 28, reinforcing section; 29, straight section; 30, transverse reinforcing rib; 40, first reinforcing rib; 50, second reinforcing rib; 60, second longitudinal reinforcing rib; 61, third reinforcing part; 62, fourth reinforcing part; 70, auxiliary rib. DETAILED DESCRIPTION

[0065] In order to make the technical problems solved in the present application, the technical solutions adopted and the technical effects reached more clear, the technical solutions of the embodiments of the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0066] In the description of the present application, unless explicitly defined and limited, the terms "connected", "fixed" should be understood broadly, for example, can be fixedly connected, can be detachably connected or integrated; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] In the present application, unless explicitly defined and limited, the first feature "on" or "under" the second feature can include 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 through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0068] With the continuous update of the interactive smart tablet, the interactive smart tablet is developing in the direction of large size and thin design. When assembling the interactive smart tablet, in addition to shielding the backlight module, mainboard and wire, the back plate also needs to assist in fixing part of the components of the smart tablet according to the installation requirements, for example: the back plate needs to assist in fixing part of the backlight module, that is, it has certain requirements on the strength of the back plate itself. However, with the requirement of thin design of the interactive smart tablet, the surface of the back plate needs to be made more flat, so that the reinforcement rib structure on the surface of the back plate is limited, for example: the protrusion height of the reinforcement rib on the surface of the back plate cannot exceed the design requirement, thereby affecting the reinforcement effect of the reinforcement rib on the back plate. In summary, in the process of adapting to the trend of updating the interactive smart tablet, how to effectively ensure the strength of the back plate has become the main problem to be solved in the industry.

[0069] At present, the related back plate of the interactive smart tablet adopts the combination of horizontal reinforcement rib and vertical reinforcement rib to improve the overall installation strength of the back plate. At the same time, for large-size interactive smart tablets, the vertical reinforcement rib is the main rib for force, and the horizontal reinforcement rib is the auxiliary rib for force. Since the horizontal reinforcement rib and the vertical reinforcement rib intersect with each other on the back plate, when the back plate is subjected to force reinforcement, the intersection area will be the core stress point, and the stress strength will continuously diverge outward from the intersection area (from the intersection area to the outer wall direction of the back plate) until the overall reinforcement of the back plate is achieved. However, the related force reinforcement method will cause the back plate near the intersection area to be obviously reinforced, and the back plate far from the intersection area to be gradually weakened, resulting in uneven overall reinforcement of the back plate.

[0070] Therefore, the related interactive smart tablet has not realized the effective reinforcement of the reinforcement rib on the back plate. In addition, due to the inclined arrangement of the side part of the back plate relative to the surface of the back plate, the horizontal reinforcement rib and the vertical reinforcement rib are arranged on the surface of the back plate, ignoring the fixation of the side part of the back plate. Therefore, the horizontal and vertical reinforcement ribs arranged on the back plate cannot fully play the reinforcement role.

[0071] In the present application, it is considered that in a large-size interactive smart panel, it is often necessary to be hung on the wall or the foot stand, that is, the interactive smart panel is placed vertically, and the screen of the interactive smart panel faces the observer. Therefore, in this scenario, the vertical reinforcing rib is the main rib, and the horizontal reinforcing rib is the auxiliary rib. When arranging the horizontal reinforcing rib and the longitudinal reinforcing rib on the back plate, by avoiding the intersection of the horizontal reinforcing rib and the longitudinal reinforcing rib, the longitudinal reinforcing rib as a whole becomes the core stress area, at the same time, the longitudinal reinforcing rib is required to extend from the top side to the ground side of the interactive smart panel, and the horizontal reinforcing rib as an auxiliary rib assists the auxiliary reinforcing force of the core stress area. Compared with the related scheme of changing the cross core stress to the vertical reinforcing rib whole core stress, the scheme of the present application can make the reinforcing force of the reinforcing rib more evenly spread on the back plate, thereby effectively playing the reinforcing effect of the horizontal and longitudinal reinforcing ribs on the back plate.

[0072] Therefore, the embodiment of the present application provides a back plate which can fully play the reinforcing effect of the horizontal and longitudinal reinforcing ribs on the back plate and ensure the strength of the back plate.

[0073] According to the size of the back plate, the present application selects one or more longitudinal reinforcing ribs for arrangement, and then uses the horizontal reinforcing rib for auxiliary arrangement on the back plate. Considering that the longitudinal reinforcing rib is the main rib and the horizontal reinforcing rib is the auxiliary rib, after arranging the longitudinal reinforcing rib on the back plate, the horizontal reinforcing rib is arranged on the back plate in a horizontal direction, so that the longitudinal reinforcing rib is located between the adjacent two horizontal reinforcing ribs, thereby realizing the whole longitudinal reinforcing rib as the core stress area.

[0074] In an embodiment, the longitudinal reinforcing rib is extended towards the top side and the ground side of the back plate (referring to the side facing the ceiling as the top side and the side facing the ground as the ground side after the interactive smart panel is hung), and a reinforcing part is arranged at both ends of the longitudinal reinforcing rib. The reinforcing part extends from both ends of the longitudinal reinforcing rib to the top side and the ground side of the back plate along the surface of the back plate, and the reinforcing part is fixedly attached to the surface, the top side and the ground side of the back plate, thereby ensuring the fixing effect of the reinforcing part on the back plate and realizing the full extension of the longitudinal reinforcing rib on the back plate. Therefore, compared with the related scheme of using the cross center as the core stress area and diffusing the reinforcing force, the above scheme of the present application enlarges the core stress area, so that the reinforcing force of the reinforcing rib can be more evenly diffused to the whole back plate, thereby ensuring the reinforcing effect of the horizontal and longitudinal reinforcing ribs on the back plate.

[0075] Please refer to FIGS. 1-7, the main structure of the back plate mainly includes a plate body 10, which is the main component of the back plate in this embodiment and bears the main stress and support function.

[0076] It should be noted that in the actual application scenario of the interactive panel, the size and material of the panel body 10 mainly depend on the specific application scenario and design requirements, and therefore the present application does not have strict requirements thereon.

[0077] The first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 are both arranged on the panel body 10 along the longitudinal direction of the panel body 10, and are spaced apart on the panel body 10 according to the application scenario (such as the specific installation mode) and design requirements of the interactive panel, and are used to enhance the strength and rigidity of the panel body 10 in the longitudinal direction.

[0078] The opposite ends of the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 are respectively directed towards the top side and the ground side of the panel body 10, wherein the opposite ends of the first longitudinal reinforcing rib 20 are respectively provided with a first reinforcing portion 21 directed towards the top side and a second reinforcing portion 22 directed towards the ground side. The opposite ends of the second longitudinal reinforcing rib 60 are respectively provided with a third reinforcing portion 61 directed towards the top side and a fourth reinforcing portion 62 directed towards the ground side. The first reinforcing portion 21 and the third reinforcing portion 61 are bent relative to the top side of the panel body 10 and fixedly attached to the top side, and the second reinforcing portion 22 and the fourth reinforcing portion 62 are bent relative to the ground side of the panel body 10 and fixedly attached to the ground side. In the above embodiment, the first reinforcing portion 21, the second reinforcing portion 22, the third reinforcing portion 61 and the fourth reinforcing portion 62 are respectively used to improve the bearing capacity provided by the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 for the panel body 10. It can be understood that the first reinforcing portion 21 and the second reinforcing portion 22 can be part of the first longitudinal reinforcing rib 20, can be directly connected to the first longitudinal reinforcing rib 20, or can be indirectly connected to the first longitudinal reinforcing rib 20 through the panel body 10, so as to achieve the purpose of extending the spanning distance (or area) of the first longitudinal reinforcing rib 20 on the panel body 10 in structure, so that the first longitudinal reinforcing rib 20 can improve the bearing capacity provided by the first longitudinal reinforcing rib 20 for the panel body 10 in the longitudinal direction through the first reinforcing portion 21 and the second reinforcing portion 22, and finally enhance the strength and rigidity of the backboard as a whole. Similarly, the third reinforcing portion 61 and the fourth reinforcing portion 62 can be part of the second longitudinal reinforcing rib 60, can be directly connected to the second longitudinal reinforcing rib 60, or can be indirectly connected to the second longitudinal reinforcing rib 60 through the panel body 10, so as to achieve the purpose of extending the spanning distance (or area) of the second longitudinal reinforcing rib 60 on the panel body 10 in structure, so that the second longitudinal reinforcing rib 60 can improve the bearing capacity provided by the second longitudinal reinforcing rib 60 for the panel body 10 in the longitudinal direction through the third reinforcing portion 61 and the fourth reinforcing portion 62, and finally enhance the strength and rigidity of the backboard as a whole.

[0079] In order to ensure that the longitudinal reinforcing ribs (including the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60, which are collectively referred to as longitudinal reinforcing ribs in some cases below for ease of description) can improve the load-carrying capacity in the corresponding direction through the reinforcing portions (including the first reinforcing portion 21, the second reinforcing portion 22, the third reinforcing portion 61, and the fourth reinforcing portion 64, which are collectively referred to as reinforcing portions in some cases below for ease of description), the reinforcing portions located at the opposite ends (opposite ends in the longitudinal direction) of the longitudinal reinforcing ribs are arranged close to the top side and the ground side of the plate body 10, respectively, and are bent and fixedly attached to the corresponding side of the plate body 10 according to the structure of the top side and the ground side of the plate body 10, thereby improving the connection strength between the body of the longitudinal reinforcing rib and the plate body.

[0080] It should be understood that the definition of the reinforcing portions being arranged close to the top side and the ground side of the plate body 10 in the above description means that:

[0081] Any reinforcing portion is relatively close to the top side or the ground side of the plate body 10 in terms of position or distance, but is not usually in direct contact or complete overlap, which can also mean that the distance between the two ends of the longitudinal reinforcing rib and the top side and the ground side of the plate body 10 is close, but the longitudinal reinforcing rib is not directly connected to the plate edge of the plate body 10. In this way, the longitudinal reinforcing rib can not completely span the longitudinal space of the plate body 10 in the longitudinal direction, and the lateral structural strength of the plate body 10 on the side plate edge is preserved to some extent, the strength and rigidity of the back plate in all directions are ensured, and the problem of deformation of the plate edge from another direction caused by excessive pursuit of the longitudinal strength of the back plate is avoided.

[0082] It should be noted that the specific distance or interval at which the reinforcing portion is close to the top side or the ground side of the plate body 10 does not have a fixed standard or specific value in this embodiment, and the distance between the two mainly depends on the specific design requirements, the material properties of the material used by the back plate, the manufacturing process of the back plate, and other factors. Therefore, in actual application, the relative position and distance between the reinforcing rib and the side plate edge need to be determined according to the specific situation.

[0083] As can be understood from the above, the longitudinal reinforcing rib extends to the side edges of the plate body 10 through the reinforcing portion, which can not only significantly enhance the stability of the entire backboard structure, but also make the plate body 10 and the side edges of the plate body 10 less likely to bend or deform. In the case where the interactive flat panel is in the installed state, the longitudinal force acting on the plate body 10 is greater than the transverse force (for example, in the case of wall-mounted installation), and the external pressure or internal stress acting on the backboard can be distributed more evenly to the entire plate body 10 structure by the longitudinal reinforcing rib, that is, the force can be better transmitted to the top and bottom edges, reducing or even avoiding the occurrence of stress concentration, thereby reducing the risk of damage to the backboard due to excessive local stress or deformation of the upper or lower side edges of the plate body 10 due to the lack of support from the longitudinal reinforcing rib (including the reinforcing portion).

[0084] In addition, whether in the transportation process or in the normal use state of the interactive flat panel, the edges of the interactive flat panel are often the parts most susceptible to external impact or pressure. In the present embodiment, by extending the longitudinal reinforcing rib to the upper and lower side edges of the plate body 10, additional support can be provided to the edge area of the interactive flat panel to prevent deformation or damage of the edges when subjected to impact. Furthermore, in the case where the backboard is subjected to a torsional force, the longitudinal reinforcing rib and the reinforcing portion can also cooperate with each other to improve the torsional resistance of the backboard and prevent the backboard from twisting or deforming.

[0085] As can be understood from the above, the backboard not only includes the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60, but also includes two or more transverse reinforcing ribs 30 for providing transverse support to the plate body 10. The transverse reinforcing ribs 30 are arranged on the plate body 10, and the installation gap is left between adjacent two transverse reinforcing ribs 30 for the first longitudinal reinforcing rib 20 or the second longitudinal reinforcing rib 60 to pass through.

[0086] It should be noted that in the case where the transverse reinforcing ribs 30 are arranged on the opposite sides of the longitudinal reinforcing rib, the positions between the transverse reinforcing ribs 30 arranged on the opposite sides of the same longitudinal reinforcing rib 20 are not necessarily in the opposite arrangement, and the number of transverse reinforcing ribs 30 arranged on the opposite sides of the same longitudinal reinforcing rib is not necessarily consistent.

[0087] In order to expand the use scenarios of the interactive flat panel and adapt to different user needs, the transverse reinforcing ribs 30 arranged on the plate body 10 can also have their end portions arranged near the left or right side edges of the plate body 10, so that the backboard can also have strong strength and rigidity in the vertical use state of the interactive flat panel, thereby providing stable support to the entire interactive flat panel.

[0088] Of course, for the relatively large size of the interactive tablet product, the interactive tablet is basically in the horizontal use state in the mainstream use scene of the general user, therefore, in the embodiment, the height dimension of the longitudinal reinforcing ribs protruding on the plate body 10 is set to be higher than the height dimension of the transverse reinforcing ribs 30 protruding on the plate body 10, so as to as far as possible improve the structural strength and rigidity of the back plate in the longitudinal direction.

[0089] It also needs to be explained that each longitudinal reinforcing rib and each transverse reinforcing rib 30 can be arranged to protrude from the same side of the plate body 10, so as to reduce the thickness dimension of the back plate as a whole, for example, in the embodiment, as shown in FIG. 6, the longitudinal reinforcing ribs and the transverse reinforcing ribs 30 protrude from the outer side of the plate body 10, so that the space occupied by the back plate in the interactive tablet can be reduced. Of course, in some special use scenarios, the longitudinal reinforcing ribs and the transverse reinforcing ribs 30 can also protrude from the inner side and the outer side of the plate body 10, respectively. In addition, the longitudinal reinforcing ribs and the reinforcing portions can also be arranged to protrude from the same side of the plate body 10, for example, in the embodiment, the technical effect of the longitudinal reinforcing ribs and the transverse reinforcing ribs 30 protruding from the same side of the plate body 10 is achieved, or they can also be arranged to protrude from the inner side and the outer side of the plate body 10, respectively, for example, the first longitudinal reinforcing rib 20 and / or the second longitudinal reinforcing rib 60 are arranged to protrude from the outer side of the plate body 10, and correspondingly, the first reinforcing portion 21, the second reinforcing portion 22, the third reinforcing portion 61 and the fourth reinforcing portion 62 are arranged to protrude from the inner side of the plate body 10, so that the outer side of the plate body 10 is provided with a groove structure at the reinforcing portions, and the electronic devices and the like arranged on the outer side of the back plate are provided with corresponding mounting positions and spaces.

[0090] In order to facilitate the understanding of the scheme, the longitudinal direction mentioned in the embodiment is specifically the "Y" direction indicated by the arrow in FIG. 1, and the transverse direction mentioned in the embodiment is specifically the "X" direction indicated by the arrow in FIG. 1.

[0091] In the embodiment, the transverse reinforcing ribs 30 are arranged to have installation gaps reserved for the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60, which can effectively enhance the strength and stability of the back plate. When the transverse and longitudinal reinforcing ribs are not connected at some places, they each play a major supporting role in their respective directions, and the stress concentration phenomenon that may occur at some intersection points is avoided. This design can make the back plate bear force more uniformly and reduce deformation or damage caused by uneven force.

[0092] Under the cooperation of the longitudinal reinforcing ribs and the reinforcing portions, the overall rigidity of the back plate is improved, so as to be suitable for the application of large-size and thin back plates.

[0093] It should also be noted that each longitudinal reinforcing rib (including each reinforcing portion) and the transverse reinforcing rib 30 can be integrally formed with the plate body 10 by sheet metal processing, or can be installed on the plate body 10 by a subsequent assembly process (including but not limited to welding, screwing, bonding, etc.).

[0094] In one embodiment, referring to FIGS. 1-7, 10, in the case where the transverse reinforcing rib 30 is arranged on both sides of a longitudinal reinforcing rib, the transverse reinforcing ribs 30 arranged on both sides (in the transverse direction) of the first longitudinal reinforcing rib 20 are arranged facing each other;

[0095] and the transverse reinforcing ribs 30 arranged on both sides of the second longitudinal reinforcing rib 60 are also arranged facing each other.

[0096] In the above defined case, the opposite arrangement of the transverse reinforcing rib 30 can form a more stable structure system for the back plate, enhance the overall stability of the structure, make the back plate more effectively disperse and transfer the transverse load when subjected to external force, better resist deformation and damage, and also inhibit the local deformation of the plate body 10 structure near the stress point.

[0097] From the above, the structure and function of each reinforcing portion are similar to those of the reinforcing rib. Therefore, in order to ensure that the reinforcing portion has the effect of improving the strength and rigidity of the plate body 10, the first reinforcing portion 21, the second reinforcing portion 22, the third reinforcing portion 61, and the fourth reinforcing portion 62 should satisfy the arrangement mode of at least partially protruding from the surface of the plate body 10 to increase the stress area of the back plate, improve stress distribution, and enhance the bending resistance and other purposes.

[0098] In the above embodiment where each reinforcing portion is formed with the plate body 10 by sheet metal processing, such as stamping process, as shown in FIGS. 1-7, 12-13, the reinforcing portion also has a certain extension length in the longitudinal direction of the plate body 10. In this embodiment, the first reinforcing portion 21 and the second reinforcing portion 22 are arranged to gradually decrease in thickness dimension from the first longitudinal reinforcing rib 20 to the sky side and the ground side of the plate body 10, respectively.

[0099] Similarly, the third reinforcing portion 61 and the fourth reinforcing portion 62 protrude from the thickness dimension of the plate body 10 to the sky side and the ground side of the plate body 10, respectively.

[0100] In this way, the side of the reinforcing portion away from the longitudinal reinforcing rib tends to be smoothly connected with the plate of the plate body 10, so as to avoid the problem of mold breaking caused by large stress concentration during the drawing process after stamping.

[0101] Specifically, the design of each reinforcing part is to cooperate with the longitudinal reinforcing rib to enhance the strength and rigidity of the plate body 10. By making the reinforcing part 21 protrude from the surface of the plate body 10 and gradually reducing the thickness dimension in the plate direction, the reinforcing part can effectively play a reinforcing role while ensuring that the reinforcing part gradually reduces the thickness dimension protruding from the plate body 10, and in some cases, the slope between the reinforcing part and the plate body 10 can be increased to facilitate the smooth removal of the product from the mold.

[0102] It should be understood that the thickness dimension of the reinforcing part protruding from the plate body 10 gradually reduces, which can be a continuous reduction as shown in FIGS. 7 and 12, i.e., the protruding part of the reinforcing part gradually reduces to smoothly connect with the plate direction of the plate body 10. Of course, the gradual reduction can also be a phased reduction as shown in FIGS. 7 and 13, i.e., the reinforcing part is divided into at least two segments, and the thickness dimension of the segment closer to the longitudinal reinforcing rib protruding from the plate body 10 is greater than that of the segment farther from the longitudinal reinforcing rib.

[0103] In the application scenario of the interactive panel, in order to provide sufficient installation space for the corresponding unit module such as the backlight module, the overall structure of the back plate generally arches towards the rear side of the interactive panel. For example, please refer to FIGS. 1-13, in this embodiment, the plate body 10 includes:

[0104] The main plate 11, in the structure of the plate body 10, the area occupied by the main plate 11 is generally the largest, so as the main structure of the plate body 10, in the application scenario of the interactive panel, the main plate 11 is used to play a main covering role and provide a corresponding installation position for the corresponding functional module (such as a backlight module, a circuit board, a wall hanging piece, etc.).

[0105] The support plate 12 is arranged around the outer peripheral part of the main plate 11, and the support plate 12 is arranged at an angle with the main plate 11, i.e., the included angle at the connection between the support plate 12 and the main plate 11 is not a straight angle. The support plate 12 is connected to the main plate 11 by the first end, so that in actual application, the support plate 12 can support the main plate 11 on the rear side of the interactive panel, and through the structure of the angle between the two, the main plate 11 is located at a position relatively away from the interactive panel, achieving the purpose of providing sufficient installation position and space inside the interactive panel.

[0106] It should be noted that the structure of the support plate 12 on the main plate 11 can be inclined relative to the main plate 11, or perpendicular to the main plate 11, to ensure that the support plate 12 can support the main plate 11 at a position relatively away from the main part of the interactive panel.

[0107] The connecting plate 13 is arranged around the outer periphery of the support plate 12 and is connected to the second end of the support plate 12. The connecting plate 13 is used to provide a mounting position for the plate body 10 to be mounted and matched with the main body of the interactive flat plate (such as the frame of the interactive flat plate), for example, by arranging a plurality of mounting holes, clamping holes, plug-in structures and the like on the connecting plate 13 so that the plate body 10 can be stably mounted and fixed on the rear side of the interactive flat plate.

[0108] In an embodiment, referring to FIGS. 7, 12 and 13, the support plate 12 is arranged to be inclined to the main plate 11 and is inclined to the outside of the main plate 11 from the first end to the second end, and the connecting plate 13 is arranged to be parallel to the main plate 11 while extending to the outside of the main plate 11, so that the plate body 10 can be conveniently disassembled and assembled on the main body of the interactive flat plate, and sufficient mounting space is provided for the internal components of the interactive flat plate to avoid interference between the functional modules and the support plate 12 and the connecting plate 13.

[0109] Based on the above structure, the support plate 12 and the connecting plate 13 extend to the outside of the main plate 11, and under the action of the support plate 12, the support plate 12 and the connecting plate 13 form a cantilever beam structure on the main plate 11. In order to avoid cracking of the structure due to stress concentration and other problems in the actual application state of the back plate (for example, the support plate 12 and the connecting plate 13 on the upper side and the lower side of the main plate 11), it is known from the above that the longitudinal extension of the longitudinal reinforcing ribs 20 on the plate body 10 should be expanded, and therefore, the back plate structure is arranged such that the opposite ends of the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 extend to the edge of the main plate 11, and the first reinforcing portion 21, the second reinforcing portion 22, the third reinforcing portion 61 and the fourth reinforcing portion 62 extend from the edge of the main plate 11 to the support plate 12. The reinforcing portion can be understood as an extension of the longitudinal reinforcing rib 20, and by arranging the reinforcing portion on the support plate 12 and ensuring the connection between the reinforcing portion and the longitudinal reinforcing rib, the structural stability between the support plate 12 and the main plate 11 can be effectively improved.

[0110] In this example, the connecting position of the reinforcing portion and the support plate 12 corresponds to the connecting position of the support plate 12 and the main plate 11 to ensure the integrity of the structure.

[0111] In the embodiment where the interactive flat panel is in a wall-mounted state, the main plate 11 is generally subjected to the entire weight of the interactive flat panel, which is transmitted to the main plate 11 through the connecting plate 13 and the support plate 12. In addition, due to the installation of the main plate 11 on the wall or other support structure through the wall-hanging member, the wall-hanging member also exerts a corresponding reaction force on the main plate 11, which is also transmitted to the connecting plate 13 through the main plate 11 and the support plate 12. Therefore, a relatively large interaction force is generated between the main plate 11 and the support plate 12, and the longitudinal reinforcing ribs connected to the main plate 11 and the support plate 12 through the reinforcing portions can effectively increase the stress area between the main plate 11 and the support plate 12. The longitudinal reinforcing ribs and the reinforcing portions can help to disperse the interaction force between the main plate 11 and the support plate 12, making the distribution more uniform, thereby reducing the direct stress between the main plate 11 and the support plate 12 to a certain extent.

[0112] In one embodiment, as can be understood from the above, in the case where the interactive flat panel is in a mounted state, the longitudinal force acting on the plate body 10 is greater than the transverse force (for example, in the case of wall-mounted installation, the upper side of the plate body 10 has a tendency to tilt forward, so the force acting on the upper side of the plate body 10 is greater than that on the lower side). Therefore, in addition to arranging the reinforcing portions and the longitudinal reinforcing ribs 20 on the support plate 12 and the main plate 11 and connecting them, the first reinforcing portion 21 and the third reinforcing portion 61 at the upper end of the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 are arranged to be connected to the connecting plate 13 in this embodiment, so as to improve the strength and rigidity of the upper side of the plate body 10, and to maximize the deformation of the upper side of the plate body 10 by the longitudinal reinforcing ribs and the reinforcing portions.

[0113] As shown in FIG. 5, in the embodiment where the plate body 10 includes the main plate 11, the support plate 12, and the connecting plate 13, in one embodiment, at least one of the second reinforcing portion 22 and the fourth reinforcing portion 62 is a relief portion 23 arranged on the outer side of the main plate 11, i.e., as defined above, it can be understood that the relief portion 23 is arranged on the inner side of the plate body 10.

[0114] From the above, it can also be understood that the second reinforcing portion 22 and / or the fourth reinforcing portion 62 are recessed in the outer side of the plate body 10, which can provide corresponding installation positions and spaces for some devices, modules, etc. For example, in some interactive flat products, the inside of the interactive flat and the outer side of the back plate are respectively provided with corresponding devices and modules (for example, a backlight module is arranged in the space provided by the main plate 11 inside the interactive flat, and a circuit board is arranged on the outer side of the plate body 10 outside the interactive flat), and the devices or modules are connected by wires (for example, the backlight module and the circuit board are connected by flexible wires (FPC)). The wire needs to extend from the inner side of the plate body 10 to the outer side of the plate body 10 along the side plate of the plate body 10, and the second reinforcing portion 22 and / or the fourth reinforcing portion 62 recessed in the main plate 11 can provide a corresponding passing space for the wire (or other devices, modules, etc.) to avoid interference between the wire (or other devices, modules, etc.) and the back plate or other devices, modules, etc.

[0115] Of course, in other embodiments, the second reinforcing portion 22 and / or the fourth reinforcing portion 62 can be further recessed in the support plate 12 on the basis of being recessed in the main plate 11, and in the embodiment in which it extends to the connecting plate 13, it can also be recessed in the connecting plate 13 to provide more generous installation positions and spaces.

[0116] In order to ensure the continuity of the reinforcing rib structure, in the case of the second reinforcing portion 22 being an avoidance table 23, the end of the first longitudinal reinforcing rib 20 is connected to the side wall of the avoidance table 22; and in the case of the fourth reinforcing portion 62 being an avoidance table 23, the end of the second longitudinal reinforcing rib 60 is connected to the side wall of the avoidance table 22. The connection between the longitudinal reinforcing rib and the avoidance table 22 ensures that the longitudinal reinforcing rib and the avoidance table 22 have strong stability, at least providing effective support between the main plate 11 and the support plate 12.

[0117] Specifically, one end of the longitudinal reinforcing rib close to the avoidance table 22 is connected to the side wall of the avoidance table 22, which ensures the integrity of the appearance while allowing the avoidance table 22 and the longitudinal reinforcing rib to transmit forces to each other through the side wall.

[0118] As in the above embodiment, the avoidance table 22 is recessed in the thickness dimension of the plate body 10, and can also be provided in a gradually decreasing form from the main plate 11 to the support plate 12. Referring to FIGS. 1-7, based on the above embodiment in which the plate body 10 includes the main plate 11, the support plate 12 and the connecting plate 13, in order to improve the structural strength of the left side plate and the right side plate of the plate body 10, and to avoid the problem of large deformation of the cantilever beam structure formed by the support plate 12 and the connecting plate 13 respectively located on the left side and the right side of the main plate 11 in the application state, the present embodiment at least provides the following technical means which can effectively solve the corresponding technical problems:

[0119] I. Referring to Fig. 4, the support plates 12 on the opposite sides of the main plate 11 are provided with first reinforcing ribs 40, and each first reinforcing rib 40 extends longitudinally.

[0120] II. Referring to Figs. 3 and 5, the support plates 12 on the opposite sides of the main plate 11 in the transverse direction are provided with first reinforcing ribs 50, and the first reinforcing ribs 50 extend longitudinally at the connection between the support plates 12 and the connecting plates 13.

[0121] III. Referring to Figs. 1 and 5, the support plates 12 on the opposite sides of the main plate 11 are provided with a plurality of first reinforcing ribs 40, and the first reinforcing ribs 40 are arranged longitudinally and spaced apart.

[0122] Of course, the above three technical means can be applied to the same plate body 10 at the same time.

[0123] Among them, the first reinforcing rib 40 can be a convex rib or a concave rib.

[0124] It should be noted that in the above technical means III, the first reinforcing rib 40 has a connection structure similar to the reinforcing portions on the plate body 10, that is, the first reinforcing rib 40 can adopt at least the following two specific connection modes with the plate body 10 to improve the structural strength between the main plate 11 and the support plate 12, or between the main plate 11, the support plate 12 and the connecting plate 13:

[0125] 1. One side of each first reinforcing rib 40 is connected to the main plate 11, and the other side is arranged close to the connecting plate 13 with a gap between them;

[0126] 2. One side of each first reinforcing rib 40 is connected to the main plate 11, and the other side is connected to the connecting plate 13 through the support plate 12 in the transverse direction.

[0127] Of course, the above connection mode 1 and connection mode 2 can be applied to different first reinforcing ribs 40 of the same plate body 10 at the same time.

[0128] However, the first reinforcing rib 40 in the third technical means above is different from the technical scheme related to the reinforcing part in that the first reinforcing rib 40 can be arranged to be connected with the transverse reinforcing rib 30 or arranged to be spaced apart from the transverse reinforcing rib 30, so that the end of the transverse reinforcing rib 30 is indirectly connected with the first reinforcing rib 40 through the plate body 10. The main reason for the first reinforcing rib 40 to be arranged in this way is that in the actual application scenario of the backboard, the left and right sides of the plate body 10 (the left side plate along and the right side plate along) are not the main stress parts, and the left side plate along and the right side plate along of the plate body 10 will not be subjected to the force having the tendency to fall forward in the use state of the interactive flat plate as shown in FIGS. 1-5. Therefore, even if the first reinforcing rib 40 is arranged not to be directly connected with the transverse reinforcing rib 30, its influence on the overall structural strength of the plate body 10 will not cause a large deformation between the support plate 12 and the main plate 11 on the left side plate along and the right side plate along of the plate body 10. As long as the plate body 10 ensures that the first reinforcing rib 40 is arranged on the support plate 12 or the support plate 12 and the connecting plate 13 on the left and right sides of the plate body 10, the support plate 12 and the connecting plate 13 themselves will not produce excessive deformation, which can meet the use requirements of the backboard.

[0129] Similar to the principle of the first reinforcing rib 40 described above, based on the embodiment in which the plate body 10 includes the main plate 11, the support plate 12, and the connecting plate 13, as shown in FIGS. 1-5, a plurality of second reinforcing ribs 50 are concavely arranged on the top side and the bottom side of the main plate 11. The plurality of second reinforcing ribs 50 are arranged in a spaced apart manner along the transverse direction of the main plate 11. One side of each second reinforcing rib 50 is connected with the main plate 11, and the other side extends in the longitudinal direction of the plate along to the support plate 12 and is arranged close to the connecting plate 13, so as to enhance the structural strength of the support plate 12 and the support plate 12 and the main plate 11.

[0130] It should be noted that the second reinforcing rib 50 is concavely arranged on the outer side of the plate body 10. In addition to being able to improve the structural strength of the top side plate along and the bottom side plate along of the plate body 10, the second reinforcing rib 50 can also provide corresponding mounting positions and layout spaces for different devices, modules, and other components.

[0131] In the embodiment, one of the reasons for arranging the second reinforcing ribs 50 on the top side and the ground side of the plate body 10 in a multi-section and interval arrangement is that, since the longitudinal reinforcing ribs are arranged on the plate body 10 along with the reinforcing portions to be close to the top side and the ground side, if the second reinforcing ribs 50 are arranged on the upper side plate along and the lower side plate along of the plate body 10 in a transverse arrangement, the second reinforcing ribs 50 will be interfered by the bodies of the reinforcing portions and the longitudinal reinforcing ribs, so as to avoid affecting the structural strength of the longitudinal reinforcing ribs and the reinforcing portions, the second reinforcing ribs 50 are arranged in a manner of being arranged in an interval arrangement in the transverse direction on the top side and the ground side of the plate body 10, so as to stagger the second reinforcing ribs 50 with the reinforcing portions and the longitudinal reinforcing ribs.

[0132] The second reason for arranging the second reinforcing ribs 50 on the top side and the ground side of the plate body 10 in a multi-section and interval arrangement is that, in actual application scenarios, since there are relatively more devices, modules and the like inside the interactive panel and on the outer side of the plate body 10, each second reinforcing rib 50 on the upper side plate along and the lower side plate along of the plate body 10 needs to be adaptively adjusted according to the positions of the related devices, modules and the like, so as to enable the related devices, modules and the like to be reasonably arranged on the interactive panel.

[0133] In an embodiment, as shown in FIGS. 1-5 and 11, the side close to the second longitudinal reinforcing rib 60 of the first longitudinal reinforcing rib 20 is concavely provided with a support platform 24, and in some embodiments, the transverse reinforcing rib 30 between the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 can also be provided with a support platform 24, the thickness of the support platform 25 is smaller than that of the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 and larger than that of the plate body 10. In this way, the support platforms 24 arranged on the transverse reinforcing rib 30, the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 can cooperate to define an area for installing related components such as a circuit board and a small back shell of the interactive panel. Meanwhile, when the interactive panel is provided with a small back shell in the area, the plate along of the small back shell can be supported by the support platform 24, so as to reserve sufficient installation space between the small back shell and the plate body 10 and provide the small back shell with a corresponding protection function for the related components.

[0134] The gap between the transverse reinforcing rib 30 and the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 is larger than the gap between the transverse reinforcing rib 30 on the side away from the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 and the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60, so as to ensure that the transverse reinforcing rib 30 will not interfere with the support platform 25 arranged on the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60.

[0135] Please continue to refer to Figure 1, Figure 5, the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 are also provided with an auxiliary rib 70, one end of the auxiliary rib 70 is connected with the transverse reinforcing rib 30, the other end of the auxiliary rib 70 extends to the top side of the plate body 10 and is fixed to the top side of the plate body 10, so as to improve the rigidity of the back plate between the longitudinal reinforcing rib and the transverse reinforcing rib 30.

[0136] Please continue to refer to Figure 1, Figure 5, in combination with the above-mentioned embodiment that the opposite two sides of the main plate 11 are recessed and provided with a plurality of second reinforcing ribs 50, the second reinforcing ribs 50 located on the upper side of the plate body 10 are provided in three sections, two of which are provided on the sides opposite to the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60, and one is provided between the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60. Due to the relatively small number of devices and modules provided on the upper side of the plate body 10, the size of the second reinforcing ribs 50 in the transverse direction on the upper side of the plate body 10 is larger than that on the lower side of the plate body 10, so as to improve the structural strength of the upper side of the plate body 10. In this embodiment, the second reinforcing ribs 50 on the sides opposite to the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 can also be used to set up the loudspeaker module, and the second reinforcing rib 50 between the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 can be configured to only provide a reinforcing effect, therefore, the width of the two second reinforcing ribs 50 (in the longitudinal direction) can be set to be larger than that of the first reinforcing rib in the middle. In an embodiment, as shown in Figure 1-5, Figure 7-10, Figure 13, the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 are both provided with a plurality of wall hanging parts 25 arranged at intervals in the longitudinal direction, and the outer side of the wall hanging part 25 of the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 is provided with a plurality of third reinforcing ribs 26, each of which extends in the longitudinal direction, so as to ensure that the longitudinal reinforcing rib can maintain a stable structure even if the plate body 10 has a tendency to tilt forward from top to bottom under the force.

[0137] Of course, in other embodiments, as shown in Figure 9-10, due to the size limitation of the longitudinal reinforcing rib in the transverse direction, in order to avoid interference between the third reinforcing rib 26 and the wall hanging part 25, the side part of the third reinforcing rib 26 located in the wall hanging part 25 can be provided with a convex structure matched with the structure of the wall hanging part 25.

[0138] The outer periphery of the wall-hanging portion 25 near the upper end of the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 is provided with a third reinforcing rib 26 to ensure that the longitudinal reinforcing rib near the upper side of the plate body 10 has sufficient strength and rigidity to meet the requirements of the interactive flat panel to be installed. The other wall-hanging portions 25 away from the upper end of the longitudinal reinforcing rib of the wall-hanging portion 25 can be provided with a third reinforcing rib 26 only along the longitudinal opposite sides of the wall-hanging portion 25 as shown in FIGS. 8 and 10, or provided with a third reinforcing rib 26 along the longitudinal opposite sides and one of the transverse sides of the wall-hanging portion 25 as shown in FIG. 9. The reason is that the wall-hanging portion 25 near the upper end of the longitudinal reinforcing rib will bear more load than other wall-hanging portions 25, so more third reinforcing ribs 26 need to be configured to improve the structural strength of the wall-hanging portion 25.

[0139] On the basis of the above, as shown in FIG. 5, at least between any two adjacent wall-hanging portions 25, a fourth reinforcing rib 27 is further provided on the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60. The fourth reinforcing rib 27 can be a block-shaped convex / concave rib or a strip-shaped convex / concave rib, which can improve the structural strength of the longitudinal reinforcing rib near the wall-hanging portion 25.

[0140] On the basis of the above embodiment, the first longitudinal reinforcing rib 20 and the second longitudinal reinforcing rib 60 each have a reinforcing section 28 and a straight section 29, wherein the width dimension of the straight section 29 is smaller than the width dimension of the reinforcing section 28, so that the structural strength of the longitudinal reinforcing rib at the reinforcing section 28 is improved, and the wall-hanging portion 25 can be provided with sufficient support force when the wall-hanging portion 25 is arranged at the reinforcing section 28.

[0141] As shown in FIGS. 1-5, at least one end of the straight section 29 is connected to the reinforcing section 28. For example, in FIG. 1, the opposite ends of the straight section 29 are respectively connected to two spaced-apart reinforcing sections 28, and one end of the straight section 29 is connected to the reinforcing section 28 and the other end is connected to the reinforcing section.

[0142] The embodiment also provides an interactive flat panel, wherein the back plate of any of the above embodiments can be applied to the interactive flat panel, and on the basis of this, the interactive flat panel further comprises a backlight module arranged on the inner side of the back plate, and a display screen, which is mounted and cooperated with the back plate through a frame.

[0143] It should be noted that the interactive tablet can operate and realize human-computer interaction operation on the content displayed on the display screen through the capacitive touch technology and the electromagnetic induction technology in actual application, and integrates one or more functions of a projector, a whiteboard, a curtain, a sound, a television and a video conference terminal. Specifically, the hardware part of the interactive tablet is composed of a touch module, a display module and an intelligent processing system, which are combined together by an overall structure, and are also supported by a special software system, wherein the display module cooperates with the touch module to realize display and touch functions. The user can touch the display screen by finger or touch pen, and the intelligent processing system generates writing traces according to the touch operation input by the user and displays them on the display screen, or generates control operation according to the touch operation input by the user to process the display content on the display screen.

[0144] Typically, the interactive tablet is installed with at least one type of operating system, wherein the operating system includes but is not limited to Android system, Hongmeng system, Linux system and Windows system. The touch operation received through the display screen is processed through the operating system. The interactive tablet can install at least one application program based on the operating system, for example, a whiteboard application is installed in the interactive tablet. The whiteboard can be an application program provided by the operating system, or an application program downloaded from a third-party device or server.

[0145] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0146] In the description of the present specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0147] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0148] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without any creative effort, and these embodiments will all fall within the protection scope of the present application.

Claims

1. A backplate for use in a display device, wherein, include: Board body(10); A first longitudinal reinforcing rib (20) and a second longitudinal reinforcing rib (60) are provided at intervals on the plate body (10). The opposite ends of the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60) face the top and bottom sides of the plate body (10), respectively. The opposite ends of the first longitudinal reinforcing rib (20) are respectively provided with a first reinforcing portion (21) facing the top and a second reinforcing portion (22) facing the bottom. The opposite ends of the second longitudinal reinforcing rib (60) are respectively provided with a third reinforcing portion (61) facing the top and a fourth reinforcing portion (62) facing the bottom. The first reinforcing portion (21) and the third reinforcing portion (61) are bent relative to the top side of the plate body (10) and fixedly attached to the top side. The second reinforcing portion (22) and the fourth reinforcing portion (62) are bent relative to the bottom side of the plate body (10) and fixedly attached to the bottom side. Two or more transverse reinforcing ribs (30) are provided on the plate body (10), and an installation gap is left between two adjacent transverse reinforcing ribs (30) for the first longitudinal reinforcing rib (20) or the second longitudinal reinforcing rib (60) to pass through.

2. The backplate according to claim 1, wherein, The transverse reinforcing ribs (30) respectively disposed on opposite sides of the first longitudinal reinforcing rib (20) are arranged facing each other; and The transverse reinforcing ribs (30) respectively located on opposite sides of the second longitudinal reinforcing rib (60) are arranged facing each other.

3. The backplate according to claim 1, wherein, The first reinforcing part (21), the second reinforcing part (22), the third reinforcing part (61) and the fourth reinforcing part (62) are at least partially protruding from the plate body (10); The thickness of the first reinforcing part (21) and the second reinforcing part (22) protruding from the plate body (10) gradually decreases from the first longitudinal reinforcing rib (20) toward the top and bottom sides of the plate body (10), respectively. The thickness of the third reinforcing part (61) and the fourth reinforcing part (62) protruding from the plate body (10) gradually decreases from the second longitudinal reinforcing rib (60) toward the top and bottom sides of the plate body (10), respectively.

4. The backplate according to any one of claims 1-3, wherein, The plate body (10) includes: Motherboard (11); A support plate (12) surrounds the outer periphery of the main board (11), the support plate (12) is set at an angle to the main board (11), and is connected to the main board (11) through its first end; A connecting plate (13) surrounds the outer periphery of the support plate (12) and is connected to the second end of the support plate (12); The opposite ends of the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60) extend to the edge of the main board (11), and the first reinforcing part (21), the second reinforcing part (22), the third reinforcing part (61) and the fourth reinforcing part (62) all extend from the edge of the main board (11) to the support plate (12).

5. The backplate according to claim 4, wherein, Both the first reinforcing part (21) and the third reinforcing part (61) are connected to the connecting plate (13).

6. The backplate according to claim 4, wherein, At least one of the second reinforcing part (22) and the fourth reinforcing part (62) is a recessed platform (23) in the main board (11); When the second reinforcing part (22) is the clearance platform (23), the end of the first longitudinal reinforcing rib (20) is connected to the clearance platform (22); When the fourth reinforcing part (62) is the avoidance platform (23), the end of the second longitudinal reinforcing rib (60) is connected to the avoidance platform (22).

7. The backplate according to claim 4, wherein, First reinforcing ribs (40) are provided on the support plates (12) located on opposite sides of the main board (11), and each of the first reinforcing ribs (40) extends longitudinally; or A first reinforcing rib (40) is provided between the support plate (12) located on the opposite sides of the main board (11) and the main board (11) corresponding to the support plate (12). The first reinforcing rib (40) extends longitudinally at the connection between the support plate (12) and the connecting plate (13).

8. The backplate according to claim 4, wherein, A plurality of first reinforcing ribs (40) are provided on the support plates (12) located on opposite sides of the main board (11) in the lateral direction, and the plurality of first reinforcing ribs (40) are arranged at intervals in the longitudinal direction; One side of each of the first reinforcing ribs (40) is connected to the main board (11), and the other side is disposed near the connecting plate (13), with a gap between them; or One side of each of the first reinforcing ribs (40) is connected to the main board (11), and the other side is connected to the connecting plate (13) via the support plate (12) in the transverse direction.

9. The backplate according to claim 4, wherein, A plurality of second reinforcing ribs (50) are recessed on both the top and bottom sides of the main board (11), and the plurality of second reinforcing ribs (50) are arranged at intervals along the lateral side of the main board (11). One side of each of the second reinforcing ribs (50) is connected to the main board (11), and the other side extends longitudinally to the support plate (12) and is disposed close to the connecting plate (13).

10. The backplate according to any one of claims 1-3, wherein, A support platform (24) is recessed on one side of the first longitudinal stiffener (20) and the second longitudinal stiffener (60) that are close to each other. The support platform (24) extends longitudinally and one end is disposed close to the end of a transverse stiffener (30). The gap between the transverse reinforcing rib (30) located between the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60) and the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60) is greater than the gap between the transverse reinforcing rib (30) located on the opposite side of the first longitudinal reinforcing rib (20) and the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60).

11. The backplate according to claim 10, wherein, An auxiliary rib (70) is provided between the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60). One end of the auxiliary rib (70) is connected to the transverse reinforcing rib (30), and the other end of the auxiliary rib (70) extends toward the top side of the plate body (10) and is fixed to the top side of the plate body (10).

12. The backplate according to any one of claims 1-3, wherein, Both the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60) are provided with a plurality of wall-mounting portions (26) arranged longitudinally at intervals. Both the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60) are provided with a plurality of third reinforcing ribs (26) on the outer side of the wall-mounting portion (25); and The third reinforcing rib (26) is provided on the outer periphery of the wall-mounted part (25) near the upper ends of the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60).

13. The backplate according to claim 12, wherein, A fourth reinforcing rib (27) is provided between at least any two adjacent wall-mounted portions (25) on the first longitudinal reinforcing rib (20) and the second longitudinal reinforcing rib (60).

14. The backplate according to claim 13, wherein, Both the first longitudinal stiffener (20) and the second longitudinal stiffener (60) have: Strengthening section (28); and A straight segment (29) having a width smaller than that of the reinforcing segment (28), and at least one end of the straight segment (29) being connected to the reinforcing segment (28); The wall-mounted part (25) is located in the reinforcing section (28).

15. An interactive flat panel, wherein, include: Backplate as described in any one of claims 1-14; A backlight module is disposed on the back plate; as well as The display screen is mounted and fitted to the back panel via a frame.

Images